1. The utility model provides a car D post mould which characterized in that: the core pulling device comprises a first core pulling assembly (2) used for forming a second space (182), a second core pulling assembly (3) used for forming a third space (183), a bottom plate (4), a bearing block (5), a fixed template (6), a fixed mold (7) fixed on the fixed template (6), a movable template (8) and a movable mold (9) fixed on the movable template (8), wherein the bottom plate (4), the bearing block (5), the fixed template (6), the fixed mold (7) fixed on the fixed template (6) and the movable template (9) are sequentially arranged from bottom to top, a convex block used for forming a fourth space (123) is arranged on the movable mold (9), the fixed mold (7) is provided with a convex block used for forming a first space (181), the fixed mold (7) is further provided with a second section of block (71) used for forming a part of a second space (182), and the second section of block (71) is located between the first core pulling assembly (2) and the second core pulling assembly (3);

the bearing blocks (5) are divided into two parts and two sides, an ejector pin space (51) is formed between the two bearing blocks (5) and the bottom plate (4) and the fixed template (6), an ejector pin plate (52) is installed in the ejector pin space (51) in a sliding mode, the first core pulling assembly (2) comprises a first support rod (21), a first core pulling block (22) and a first accelerating assembly (23), the first support rod (21) penetrates through the fixed template (6) and the fixed mold (7) in a sliding mode, the first core pulling block (22) is fixed at one end, penetrating through the fixed mold (7), of the first support rod (21), and the first support rod (21) pushes the first core pulling block (22) to slide along with the sliding of the ejector pin plate (52);

the first accelerating assembly (23) comprises a first sliding block (231), one end, far away from the first core-pulling block (22), of the first support rod (21) is slidably mounted on the first sliding block (231), and the first sliding block (231) is slidably mounted on the ejector plate (52) and pushes the first support rod (21) to move upwards further along with the ejector plate (52).

2. The automobile D-pillar mold according to claim 1, wherein: the first accelerating assembly (23) further comprises a first inclined guide rod (232), the first inclined guide rod (232) is installed in the thimble space (51), a first guide hole (2317) for the first inclined guide rod (232) to penetrate is formed in the first sliding block (231), the axis of the first inclined guide rod (232) is inclined towards the axis direction of the first support rod (21), a first sliding rail (2315) for the first support rod (21) to slide and install is formed in the first sliding block (231), and one end, close to the first guide hole (2317), of the first sliding rail (2315) is inclined upwards relative to the base plate (4).

3. The automobile D-pillar mold according to claim 2, wherein: the ejector plate (52) comprises an upper plate (521) and a lower plate (522) which are arranged up and down respectively, two side walls of the first sliding block (231) in the sliding direction are provided with first guide blocks (2312), and the first guide blocks (2312) are located between the upper plate (521) and the lower plate (522).

4. The automobile D-pillar mold according to claim 3, wherein: the lower plate (522) is provided with a first sliding groove (5222) for the first guide block (2312) to be slidably arranged, the lower plate (522) is fixed with a first limiting plate (523) through a screw, the first guide block (2312) is located between the first limiting plate (523) and the groove bottom of the first sliding groove (5222), and the upper plate (521) is provided with a first caulking groove (5212) for the first limiting plate (523) to be embedded into.

5. The automobile D-pillar mold according to claim 4, wherein: the first sliding block (231) comprises a first sliding bottom block (2311) and a first sliding groove top block (2313), the side wall of the first sliding bottom block (2311) departing from the lower plate (522) is provided with a first acceleration surface (2314), the number of the first sliding groove top block (2313) is two, the first sliding groove top block is installed on the first acceleration surface (2314), and the number of the first sliding rail (2315) is two, and one side wall of the first sliding groove top block (2313) is correspondingly provided with two opposite side walls.

6. The automobile D-pillar mold according to claim 5, wherein: the first accelerating assembly (23) further comprises a second inclined guide rod (233) and a first linkage member (234), the second inclined guide rod (233) is mounted in the thimble space (51) and parallel to the first stay bar (21), the first linkage member (234) is slidably mounted on the first slide rail (2315), and the second inclined guide rod (233) and the first stay bar (21) both slidably penetrate through the first linkage member (234).

7. The automobile D-pillar mold according to claim 6, wherein: first linkage piece (234) include first linkage block (2341) and first linkage board (2342), first linkage board (2342) have two, two first linkage board (2342) one-to-one slides and installs in two first slide rail (2315), first linkage block (2341) have two, one supplies first vaulting pole (21) slide and run through, one supplies second oblique guide arm (233) slide and run through, two first linkage block (2341) rotate install in two between first linkage board (2342).

8. The automobile D-pillar mold according to claim 7, wherein: the first acceleration assembly (23) further comprises a first lower cylindrical rod (236) and a first upper cylindrical rod (238), the first lower cylindrical rod (236) is mounted on the base plate (4), a lower first rolling groove (2321) for the first lower cylindrical rod (236) to be mounted is formed in the lower end of the first inclined guide rod (232), an upper first rolling groove (2322) for the first upper cylindrical rod (238) to be mounted is formed in the upper end of the first inclined guide rod (232), a lower first rolling groove (2321) for the first lower cylindrical rod (236) to be mounted is also formed in the lower end of the second inclined guide rod (233), and an upper first rolling groove (2322) for the first upper cylindrical rod (238) to be mounted is also formed in the upper end of the second inclined guide rod (233).

9. The automobile D-pillar mold according to claim 8, wherein: the first accelerating assembly (23) further comprises a first upper mounting seat (237), the first upper cylindrical rods (238) are mounted on the first upper mounting seat (237), and the first upper mounting seat (237) abuts against the fixed template (6).

10. The automobile D-pillar mold according to claim 9, wherein: first vaulting pole (21) overcoat is equipped with first bush (24), the bottom of first bush (24) is provided with first stop ring limit (241), fixed die plate (6) are constituteed the fix with screw has first stopper (25) on the lateral wall of thimble space (51), first stopper (25) butt first stop ring limit (241) and restriction first bush (24) are followed first vaulting pole (21) axis direction slides downwards.

Background

The vehicle D-pillar is typically found only on SUVs, MPVs or some large vehicles. And the junction of the rear small window and the rear windshield.

A conventional automobile D-pillar is shown in fig. 1, and includes a main body 11 and a side body 12 located at one side of the main body 11, where the main body 11 includes a first main plate 13, a second main plate 14, and a third main plate 15 integrally disposed to form a cavity, and a first partition 16 and a second partition 17 separating the cavity, where the first main plate 13 and the second main plate 14 are V-shaped, the third main plate 15 closes one side of the cavity, the first partition 16 and the second partition 17 partition the cavity into three cavities, and includes a first space 181 between the first partition 16 and the third main plate 15, a second space 182 between the first partition 16 and the second partition 17, and a third space 183 of the second partition 17 facing away from the first partition 16, and the first space 181, the second space 182, and the third space 183 are communicated at an intersection of the first main plate 13 and the second main plate 14; the side body 12 includes an extension plate 121 and a side plate 122, one side of the extension plate 121 is integrated with the second main plate 14, the other side of the extension plate 121 is integrated with the side plate 122, and a fourth space 123 is formed among the side plate 122, the extension plate 121, and the second main plate 14.

The first partition plate 16 is bent and extended towards the direction far away from the third main plate 15 towards the side of the cavity opening, and the second partition plate 17 is bent and extended towards the direction far away from the second partition plate 17 towards the side of the cavity opening.

To the correlation technique among the aforesaid, the inventor thinks for the convenience is loosed core, form certain inclination in the bottom of cavity, the die cavity that forms the main part must be one end height, one end is low, and the die cavity that forms the third mainboard must be located lower one end, the piece of loosing core that forms second space and third space is owing to receive the hindrance of first baffle and second baffle bending part, need follow the orientation of first baffle and second baffle face and loose core, because the distance of taking out is longer, conventional oblique guide pillar mode of loosing core, can make the stroke overlength of oblique guide pillar, and then the working distance overlength of partial part when leading to loosing core, it is very inconvenient to loose core.

Disclosure of Invention

In order to conveniently loose the core, this application provides an automobile D post mould.

The application provides a car D post mould adopts following technical scheme:

a kind of car D column mould, including the first assembly of loosing core used for shaping the second space, the second assembly of loosing core used for shaping the third space and bottom plate, bearing block, fixed die plate, cover half, movable die plate and movable die fixed on movable die plate that are arranged sequentially from bottom to top on the assembly, said movable die is provided with the lug used for shaping the fourth space, there is lug used for shaping the first space on the said cover half, also there are two sections used for shaping some second spaces on the said cover half, said two sections locate between said first assembly of loosing core and said second assembly of loosing core;

the core pulling mechanism comprises a fixed die plate, two bearing blocks, a bottom plate and a fixed die plate, wherein the two bearing blocks are respectively arranged at two sides, an ejector pin space is formed between the two bearing blocks and the fixed die plate, an ejector pin plate is arranged in the ejector pin space in a sliding mode, a first core pulling assembly comprises a first support rod, a first core pulling block and a first accelerating assembly, the first support rod penetrates through the fixed die plate and the fixed die in a sliding mode, the first core pulling block is fixed at one end, penetrating through the fixed die, of the first support rod, and the first support rod pushes the first core pulling block to slide along with the sliding of the ejector pin plate;

the first accelerating assembly comprises a first sliding block, one end, far away from the first core-pulling block, of the first support rod is installed in the first sliding block in a sliding mode, and the first sliding block is installed in the ejector plate in a sliding mode and pushes the first support rod to move upwards further along with the ejector plate.

By adopting the technical scheme, a cavity is formed between the fixed die and the movable die and is used for forming the automobile D column, the movable die is driven to be separated from the fixed die by the movement of the movable die plate away from the fixed die plate, the formed automobile D column is positioned on the fixed die, then the first support rod is driven to do inclined movement by the movement of the ejector pin plate in the ejector pin space, the first support rod drives the first core pulling block to protrude out of the fixed die, the first core pulling block pushes the automobile D column to be demoulded, the first core pulling block is also separated along the second space inclined direction, the core pulling of the first core pulling block is convenient, the core pulling and the demould can be simultaneously carried out, the core pulling and the demould are both more convenient, the first accelerating assembly is used for accelerating the ejection speed of the first core pulling block, the running distance of the ejector pin plate is reduced, the core pulling is further convenient, the demould efficiency is higher, the ejection operation of the first support rod is driven by the movement of the ejector pin plate, the first sliding block slides on the ejector plate, and the first support rod is pushed to slide on the first sliding block through the sliding of the first sliding block, so that the first support rod is pushed to move upwards in an accelerating manner.

Optionally, the first acceleration component further comprises a first inclined guide rod, the first inclined guide rod is installed in the thimble space, a first sliding block is provided with a first guide hole for the first inclined guide rod to penetrate, the axis of the first inclined guide rod faces the axis direction of the first support rod is inclined, the first sliding block is provided with a first slide rail for the first support rod to slide and install, and the first slide rail is close to one end of the first guide hole and is opposite to the upward inclined setting of the bottom plate.

Through adopting above-mentioned technical scheme, set up first oblique guide arm, lead to first sliding block, when the thimble board drives first sliding block and moves up, because the drive effect of first oblique guide arm, thereby promote first sliding block towards first vaulting pole direction one end, because along with shifting up of thimble board, interval between first oblique guide arm and the first vaulting pole reduces, and the relative bottom plate tilt up of one end that first slide rail is close to first guiding hole sets up, when making first vaulting pole slide on first sliding block, raise gradually, thereby indirectly drive first vaulting pole and shift up with higher speed, when reducing first loose core piece and release car D post, the thimble board needs the stroke of operation, the energy consumption has been reduced.

Optionally, the ejector plate comprises an upper plate and a lower plate which are arranged up and down, the two side walls of the first sliding block in the sliding direction are provided with first guide blocks, and the first guide blocks are located between the upper plate and the lower plate.

Through adopting above-mentioned technical scheme, fall into upper plate and hypoplastron two parts to the thimble board, make things convenient for the installation of first sliding block, first guide block is installed between upper plate and hypoplastron, restricts first guide block through upper plate and hypoplastron to restrict the slip direction of first sliding block, first sliding block is difficult to the perk under the drive of first down tube.

Optionally, the lower plate is provided with a first chute for the first guide block to slide and place, a first limiting plate is fixed on the lower plate through screws, the first guide block is located between the first limiting plate and the chute bottom of the first chute, and the upper plate is provided with a first caulking groove for the first limiting plate to be embedded in.

Through adopting above-mentioned technical scheme, set up solitary first limiting plate, restrict first guide block for first sliding block can be installed in advance on the hypoplastron, then at the installation upper plate, and it is more convenient to install, and first caulking groove is seted up to the upper plate, makes first limiting plate be difficult to interfere the fixed of the installation of upper plate.

Optionally, first sliding block includes first bottom sliding block and first spout kicking block, first bottom sliding block deviates from the lateral wall of hypoplastron is established to first face with higher speed, first spout kicking block have two and install in on the first face with higher speed, first slide rail has two and one corresponding division establish two the lateral wall that first spout kicking block is relative.

Through adopting above-mentioned technical scheme, divide into several parts to first sliding block, then the installation is fixed, after dividing into a plurality of parts, makes things convenient for the processing of first sliding block, also makes things convenient for first vaulting pole and first oblique guide arm to install on first sliding block simultaneously.

Optionally, the first accelerating assembly further includes a second inclined guide rod and a first link member, the second inclined guide rod is mounted in the thimble space and is parallel to the first support rod, the first link member is slidably mounted on the first slide rail, and the second inclined guide rod and the first support rod both slidably penetrate through the first link member.

By adopting the technical scheme, the second inclined guide rod is matched with the first inclined guide rod, as the first inclined guide rod and the second inclined guide rod are close to each other at two positions on the ejector plate along with the upward movement of the ejector plate, and the second inclined guide rod is parallel to the first support rod, the distance between the second inclined guide rod and the first support rod is kept unchanged, the second inclined guide rod drives the first linkage member to slide in the first slide rail, the first linkage member drives the first support rod to move along with the first linkage member, as the first support rod directly slides in the first slide rail, a downward counter-force is provided for the first slide block, the column is easy to clamp between the first support rod and the first slide block, and the second inclined guide rod and the first linkage member are arranged, as the force between the second inclined support rod and the first linkage member is closer to the horizontal direction, the first support rod slides more smoothly along the length direction of the first slide rail, is not easy to be blocked.

Optionally, the first linkage part comprises two first linkage plates and two first linkage plates, the two first linkage plates are slidably mounted on the two first slide rails in a one-to-one correspondence manner, the two first linkage plates are provided with two first support rods which are slidably penetrated, the other first support rods are slidably penetrated, the other second inclined guide rods are slidably penetrated, and the two first linkage plates are rotatably mounted between the two first linkage plates.

Through adopting above-mentioned technical scheme, the connecting plate is used for associating first vaulting pole and second diagonal guide pole, realizes intercommunication between them, the setting of first connecting block, and first connecting block rotates and installs in the connecting plate for the motivity of first vaulting pole and second diagonal brace is stronger, and when the atress warp a little, because the motivity is stronger, is difficult to block more, and when moving, it is more smooth and easy.

Optionally, the first acceleration assembly further includes a first lower cylindrical rod and a first upper cylindrical rod, the first lower cylindrical rod is mounted on the bottom plate, a lower first rolling groove for the first lower cylindrical rod to be seated is formed at a lower end of the first diagonal guide rod, an upper first rolling groove for the first upper cylindrical rod to be seated is formed at an upper end of the first diagonal guide rod, a lower first rolling groove for the first lower cylindrical rod to be seated is also formed at a lower end of the second diagonal guide rod, and an upper first rolling groove for the first upper cylindrical rod to be seated is also formed at an upper end of the second diagonal guide rod.

Through adopting above-mentioned technical scheme, carry out the centre gripping through first upper circular cylinder pole and first lower circular cylinder pole to first oblique guide arm and second guide arm and fix, on the one hand, owing to not rigid direct fixation for first oblique guide arm and second oblique guide arm have certain deformation space, and when moving, it is more smooth and easy, and the fault-tolerant rate of installation is higher, makes the installation more convenient.

Optionally, the first accelerating assembly further includes a first upper mounting seat, the first upper cylindrical rod is mounted on the first upper mounting seat, and the first upper mounting seat abuts against the fixed template.

Through adopting above-mentioned technical scheme, the first mount pad of going up that sets up supplies the installation of first cylinder pole of going up, and the while is through the first mount pad of going up of fixed die plate restriction along thimble board glide direction rebound, first oblique guide arm and second oblique guide arm opposite orientation receive the restriction of first cylinder pole and first lower cylinder pole and the indirect restriction of fixed die plate for when the first subassembly installation with higher speed is convenient with the dismantlement, keep better stability.

Optionally, a first bush is sleeved outside the first support rod, a first limit ring edge is arranged at the bottom end of the first bush, a first limit block is fixed on the side wall of the thimble space through screws, and the first limit block abuts against the first limit ring edge and limits the first bush to slide downwards along the axis direction of the first support rod.

Through adopting above-mentioned technical scheme, the first bush that sets up for first vaulting pole is more smooth and easy in fixed die plate and cover half internal slipping, and the first stopper and the cooperation of first spacing ring limit of setting realize the fixed of first bush, and is simple and convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a cavity is formed between the fixed die and the movable die and is used for forming the automobile D column, the movable die is driven to be separated from the fixed die by the movement of the movable die plate away from the fixed die plate, the formed automobile D column is positioned on the fixed die, then the first support rod is driven to do inclined movement by the movement of the ejector pin plate in the ejector pin space, the first support rod drives the first core pulling block to protrude out of the fixed die, the first core pulling block pushes the automobile D column to be demoulded, the first core pulling block is also separated along the second space inclined direction, the core pulling of the first core pulling block is convenient, the core pulling and the demould can be simultaneously carried out, the core pulling and the demould are both more convenient, the first accelerating assembly is used for accelerating the ejection speed of the first core pulling block and reducing the running distance of the ejector pin plate, the core pulling is further convenient, the demoulding efficiency is higher, the first support rod is driven to perform the ejection operation by the movement of the ejector pin plate, and the first sliding block slides on the ejector pin plate, the first support rod is pushed to slide on the first sliding block through the sliding of the first sliding block, and the first support rod is pushed to move upwards in an accelerating manner;

2. the first inclined guide rod is arranged to guide the first sliding block, when the ejector plate drives the first sliding block to move upwards, due to the driving effect of the first inclined guide rod, the first sliding block is pushed towards one end of the first support rod direction, due to the fact that the distance between the first inclined guide rod and the first support rod is reduced along with the upward movement of the ejector plate, one end, close to the first guide hole, of the first slide rail is obliquely arranged upwards relative to the bottom plate, the first support rod is gradually raised when sliding on the first sliding block, the first support rod is indirectly driven to move upwards in an accelerating mode, when the first core pulling block pushes out the automobile D column, the stroke of the ejector plate needing to operate is reduced, and energy consumption is reduced;

3. the second inclined guide rod is matched with the first inclined guide rod, and as the ejector pin plate moves upwards, the first inclined guide rod and the second inclined guide rod are close to each other at two positions on the ejector pin plate, the second inclined guide rod is parallel to the first support rod, so that the distance between the second inclined guide rod and the first support rod is kept unchanged, the second inclined guide rod drives the first linkage piece to slide in the first slide rail, the first linkage piece drives the first stay bar to move along with the first linkage piece, and when the first stay bar directly slides in the first slide rail, a downward counter force is provided for the first sliding block, so that the column is easy to clamp between the first support rod and the first sliding block, the second inclined guide rod and the first linkage piece are arranged, because the force between the second inclined supporting rod and the first linkage part is closer to the horizontal direction, the first supporting rod slides more smoothly along the length direction of the first sliding rail and is not easy to block.

Drawings

FIG. 1 is a schematic structural view of an automotive D-pillar;

FIG. 2 is a schematic structural diagram of an embodiment of the present application;

FIG. 3 is a schematic view of the mounting structure of the first and second core pulling assemblies;

FIG. 4 is a schematic structural view of a movable die plate and a movable die in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a fixed die and the lower part of the fixed die in the embodiment of the application;

FIG. 6 is a schematic view of a mounting structure of the first core back assembly;

fig. 7 is a schematic structural view of the first core back assembly.

Description of reference numerals: 11. a main body; 12. a side body; 121. an extension plate; 122. a side plate; 123. a fourth space; 13. a first main board; 14. a second main board; 15. a third main board; 16. a first separator; 17. a second separator; 181. a first space; 182. a second space; 183. a third space; 19. buckling; 2. a first core pulling assembly; 21. a first stay bar; 22. a first core extraction block; 23. a first acceleration component; 231. a first sliding block; 2311. a first sliding bottom block; 2312. a first guide block; 2313. a first chute ejector block; 2314. a first acceleration surface; 2315. a first slide rail; 2316. a first limit protrusion; 2317. a first guide hole; 232. a first inclined guide rod; 2321. a lower first rolling groove; 2322. an upper first rolling groove; 233. a second oblique guide rod; 234. a first linkage member; 2341. a first connection block; 2342. a first linkage plate; 2343. a first rotating shaft; 235. a first lower mount; 2351. a first lower rotating plate; 236. a first lower cylindrical rod; 237. a first upper mount; 2371. a first upper rotating plate; 238. a first upper cylindrical rod; 24. a first bushing; 241. a first limit ring edge; 25. a first stopper; 3. a second core pulling assembly; 4. a base plate; 41. a first lower embedded groove; 42. a first lower placement groove; 5. a bearing block; 51. a thimble space; 52. an ejector plate; 521. an upper plate; 5211. penetrating out of the notch; 5212. a first caulking groove; 522. a lower plate; 5221. drawing the gap; 5222. a first chute; 523. a first limit plate; 6. fixing the template; 61. a cylinder; 62. drawing the column; 7. fixing a mold; 71. a second segment block; 8. moving the template; 81. a pouring gate; 9. moving the mold; 10. side core pulling slider assembly.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses car D post mould.

Referring to fig. 1, an automobile D-pillar mold is used for molding an automobile D-pillar, the automobile D-pillar includes a main body 11 and a side body 12 located at one side of the main body 11, the main body 11 includes a first main plate 13, a second main plate 14, a third main plate 15 and a first partition 16 and a second partition 17, which are integrally arranged to form a cavity, the first main plate 13 and the second main plate 14 are V-shaped, the third main plate 15 closes one side of the cavity, the first partition 16 and the second partition 17 partition the cavity into three cavities, including a first space 181 between the first partition 16 and the third main plate 15, a second space 182 between the first partition 16 and the second partition 17, and a third space 183 of the second partition 17 departing from the direction of the first partition 16, and the first space 181, the second space 182 and the third space 183 are communicated at the intersection of the first main plate 13 and the second main plate 14; the side body 12 includes an extension plate 121 and a side plate 122, one side of the extension plate 121 is integrated with the second main plate 14, the other side of the extension plate 121 is integrated with the side plate 122, and a fourth space 123 is formed among the side plate 122, the extension plate 121, and the second main plate 14.

The first main plate 13 is provided with a buckle 19 at one side close to the cavity opening of the main body 11.

The first partition plate 16 is bent and extended towards one side of the cavity opening towards the direction far away from the third main plate 15, and the second partition plate 17 is bent and extended towards one side of the cavity opening towards the direction far away from the second partition plate 17

Referring to fig. 2 and 3, the automobile D-pillar mold comprises a first core-pulling assembly 2 for forming a second space 182, a second core-pulling assembly 3 for forming a third space 183, and a bottom plate 4 sequentially arranged from bottom to top, a bearing block 5, a fixed mold plate 6, a fixed mold 7 fixed on the fixed mold plate 6, a movable mold plate 8 and a movable mold 9 fixed on the movable mold plate 8, wherein two mold cavities are formed between the fixed mold 7 and the movable mold 9, in the embodiment, the two mold cavities are independent and symmetrically arranged, and the corresponding first core-pulling assembly 2 and the second core-pulling assembly 3 are also provided with two parts, so that the mold can form two products at the same time.

Referring to fig. 2 and 4, the movable mold plate 8 can move away from the fixed mold plate 6 to drive the movable mold 9 and the fixed mold 7 to separate, so that the formed D-pillar of the automobile is exposed, and then the core can be pulled and the mold can be removed, meanwhile, the top of the movable mold plate 8 is provided with a pouring gate 81 for injecting molten raw materials, corresponding pouring gates are arranged in the movable mold plate 8 and the movable mold 9 and are divided into two parts to be respectively injected into two independent cavities, and the movable mold 9 is integrally provided with a convex block for forming the fourth space 123.

Referring to fig. 2 and 5, a hole for forming the buckle 19 of the conventional side core-pulling slider assembly 10 is further formed between the movable mold plate 8 and the fixed mold plate 6, the side core-pulling slider assemblies 10 are correspondingly provided with two groups and are symmetrically arranged, the diagonal rods are fixed to the movable mold plate 8 and move along with the movable mold plate 8, the core-pulling blocks are slidably mounted on the fixed mold plate 6, and the core-pulling blocks are driven by the diagonal rods to move towards one side to perform core-pulling movement.

Referring to fig. 5, a protruding block for forming the first space 181 is integrally arranged on the fixed mold 7, a second section 71 for forming the second space 182 is further arranged on the fixed mold 7, a groove is formed in the fixed mold 7 for slidably mounting the core pulling block of the first core pulling assembly 2 and the core pulling block of the second core pulling assembly 3, the two grooves are formed in two ends of the second section 71, and the formed part of the second section 71 is a part of the second space 182 close to the second partition plate 17, so that the second partition plate 17 does not obstruct the core pulling movement of the second core pulling assembly 3.

Referring to fig. 2 and 3, two bearing blocks 5 are provided and are respectively provided with two sides, an ejector pin space 51 is formed between the two bearing blocks 5 and the bottom plate 4 as well as the fixed template 6, an ejector pin plate 52 is installed in the ejector pin space 51 in a sliding manner, the ejector pin plate 52 comprises an upper plate 521 and a lower plate 522 which are respectively arranged up and down, the upper plate 521 and the lower plate 522 are fixed through screws, cylinders 61 are arranged on two sides of the fixed template 6, a drawing column 62 is fixed on the end portion of a piston rod of each cylinder 61, the drawing column 62 is a stepped column, the diameter of one end far away from the piston rod is larger, drawing notches 5221 for the end with the larger diameter of the drawing column 62 to be clamped in are formed in two sides of the lower plate 522, a penetrating notch 5211 for the end with the smaller diameter of the drawing column 62 to pass through is formed in the upper plate 521, and the ejector pin plate 52 is driven by the two cylinders 61 to move up and down in the ejector pin space 51.

Referring to fig. 5, 6 and 7, the first core pulling assembly 2 includes a first stay bar 21, a first core pulling block 22 and a first accelerating assembly 23, the first stay bar 21 is disposed obliquely with respect to the vertical direction, the upper end of the first stay bar is slidably penetrated through the fixed mold plate 6 and the fixed mold 7 and fixed with the first core pulling block 22, the first core pulling block 22 fills a groove on the fixed mold 7, a first bushing 24 is embedded in the fixed mold plate 6 and the fixed mold 7, the first bushing 24 is slidably mounted on the first stay bar 21, so that the first stay bar 21 is slidably mounted, the bottom end of the first bushing 24 is provided with a circle of first limiting ring 241, a first limiting block 25 is fixed on a side wall of the thimble space 51 formed by the fixed mold plate 6 by screws, the first limiting block 25 is located beside the first bushing 24, and a projection is arranged on the lower portion of the first limiting ring 25 and extends towards the direction of the first limiting ring 241, and is partially abutted against the first limiting ring 241 by the projection, thereby limiting the first bush 24 from being separated from the fixed die plate 6, and the first bush 24 is composed of a plurality of sections of parts which are not connected with each other, thereby facilitating the installation.

Referring to fig. 6 and 7, the first accelerating assembly 23 includes a first sliding block 231, a first oblique guide rod 232, a second oblique guide rod 233, a first linking member 234, a first lower mounting seat 235, a first lower cylindrical rod 236, a first upper mounting seat 237 and a first upper cylindrical rod 238, the first sliding block 231 includes a first sliding bottom block 2311 and a first sliding top block 2313, both side walls of the first sliding block 231 along the sliding direction are provided with first guide blocks 2312, the lower plate 522 is provided with first sliding grooves 5222 for slidably arranging the bottoms of the first guide blocks 2312 and the first sliding block 231, the lower plate 522 is fixed with two first limiting plates 523 by screws, one side of each first limiting plate 523 is used for fixing, the other side of each first limiting plate is suspended above the first sliding groove 5222, the two first guide blocks 2312 are located between the first limiting plate 523 and the bottoms of the first sliding grooves 5222 one to one, the upper plate 521 is provided with first caulking grooves 5212 for embedding the first limiting plate 523, meanwhile, the first sliding bottom block 2311 penetrates through the upper plate 521, so that the first sliding bottom block 2311 is conveniently and slidably mounted on the ejector plate 52.

Referring to fig. 6 and 7, the side wall of the first sliding bottom block 2311 facing away from the lower plate 522 is set as a first accelerating surface 2314, the first accelerating surface 2314 is higher along one side of the sliding direction of the first sliding bottom block 2311, two first sliding groove top blocks 2313 are arranged on two sides of the first accelerating surface 2314 in the width direction, and the bottoms of the opposite side walls of the first sliding groove top blocks 2313 are provided with first sliding rails 2315.

Referring to fig. 6 and 7, the first link 234 includes a first connecting block 2341 and a first connecting plate 2342, the first connecting plate 2342 has two blocks, two first connecting plates 2342 are slidably mounted in two first sliding rails 2315 in a one-to-one correspondence, the first connecting block 2341 has two blocks and is arranged at intervals along the length direction of the first connecting plate, two first connecting blocks 2341 are provided with first rotating shafts 2343 on two sides, the first connecting block 2341 is rotatably connected with the two first connecting plates through the first rotating shafts 2343, meanwhile, a first limiting protrusion 2316 is convexly arranged on one higher side of the first accelerating surface 2314, the first limiting protrusion 2316 abuts against a top block of the first upper sliding groove and covers the first sliding groove 5222, and the first connecting plate 2342 is prevented from sliding out of the first sliding groove 5222.

Referring to fig. 6 and 7, the diameter of the lower end of the first stay bar 21 is reduced, the first stay bar 21 is inserted into the first connecting block 2341 far away from the first limiting protrusion 2316 and penetrates through the first connecting block 2341, the second inclined guide rod 233 is parallel to the first stay bar 21 and penetrates through the other first connecting block 2341 in a sliding manner, the first sliding bottom block 2311 is provided with a first guide hole 2317, the first guide hole 2317 penetrates through the first limiting protrusion 2316, the first inclined guide rod 232 is installed in the first guide hole 2317 in a sliding manner, the axis of the first inclined guide rod 232 is inclined towards the axis direction of the first stay bar 21, the axes of the first inclined guide rod and the first stay bar intersect, and the intersection point is located above the thimble space 51.

Referring to fig. 6 and 7, there are two first lower mounting seats 235, a first lower insertion groove 41 for inserting the first lower mounting seat 235 is formed in a lower side wall of the bottom plate 4, the first lower mounting seats 235 are screwed into the first lower insertion groove 41, two first lower rotating plates 2351 are integrally and convexly arranged on an upper side wall of the first lower mounting seat 235, the first lower cylindrical rod 236 is fixedly installed between the two first lower rotating plates 2351, meanwhile, the first lower installation groove 42 penetrating through the first lower insertion groove 41 is formed in the bottom plate 4 for exposing the first lower cylindrical rod 236, lower first rolling grooves 2321 for installing the first lower cylindrical rod 236 are formed at lower ends of the first oblique guide rod 232 and the second oblique guide rod 233, and meanwhile, a first through sliding groove is vertically formed in the first sliding bottom block 2311 for allowing the second oblique guide rod 233 to slide along with movement of the first connecting piece 234.

Referring to fig. 5, 6 and 7, the first upper mounting base 237 is located in the thimble space 51 below the fixed die plate 6, the upper sidewall of the first upper mounting base 237 abuts against the fixed die plate 6, the lower sidewall of the first upper mounting base 237 is integrally provided with a first upper rotating plate 2371 in a protruding manner, two first upper cylindrical rods 238 are installed and fixed between the two first upper rotating plates 2371 at intervals, the upper ends of the first and second inclined guide rods 232 and 233 are respectively provided with an upper first rolling groove 2322 for the first upper cylindrical rods 238 to be arranged, and the two first upper cylindrical rods 238 are embedded into the two upper first rolling grooves 2322 in a one-to-one correspondence manner, so that the first and second inclined guide rods 232 and 233 are respectively clamped and fixed between the first upper mounting base 237 and the first lower mounting base 235.

The composition of the second core pulling assembly 3 is the same as that of the first core pulling assembly 2, but the second core pulling assembly 3 has a structure different from that of the first core pulling assembly 22 of the first core pulling assembly 2, the first core pulling assembly 22 is adapted to the structure of the first partition plate 16, and the second core pulling assembly is adapted to the structure of the second partition plate 17.

The implementation principle of the automobile D column die in the embodiment of the application is as follows: the cylinder 61 drives the ejector plate 52 to move, when the ejector plate 52 moves towards the fixed die plate 6, the ejector rod drives the first sliding block 231 to move upwards together, the first sliding block 231 slides horizontally on the ejector plate 52 under the action of the first inclined guide rod 232, the distance between the first inclined guide rod 232 and the second inclined guide rod 233 is reduced, the second inclined guide rod 233 drives the linkage part to move along the first slide rail 2315, the first linkage part 234 drives the first support rod 21 to move, the first support rod 21 also moves upwards at an accelerated speed under the driving of the first sliding block 231 except for moving upwards along the ejector plate 52, the first support rod 21 pushes the first core pulling block 22, the first core pulling block 22 pushes the automobile D-pillar to be demoulded, and meanwhile the first core pulling block 22 also realizes core pulling movement.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.