1. The utility model provides a screw thread is retreated and is revolved mould that takes off and be equipped with independent water route, needle and die carrier backup pad in the center that uses including the cooperation, the water route of needle links to each other in the water route of die carrier backup pad and the center, characterized by still establishes the first screw thread part in the needle outside in the center including the cover, first screw thread part overcoat is equipped with first water route switching cover, be provided with on the first screw thread part with the water inlet of the water route intercommunication of needle in the center, still be provided with the delivery port that links to each other with first water route switching cover, first water route switching cover with the water route intercommunication of die carrier backup pad.

2. The mold of claim 1 further comprising a driving means for driving a rack in motion, wherein the rack is connected to a gear, and the gear is connected to the first threaded member.

3. The mold according to claim 2, wherein the gear is further connected with a second threaded part, the second threaded part is sleeved outside the waterway bushing, the waterway bushing is communicated with the waterway of the mold frame supporting plate, a second waterway adapter sleeve is sleeved outside the second threaded part, a water inlet connected with the waterway bushing is formed in the second threaded part, a water outlet connected with the second waterway adapter sleeve is further formed in the second threaded part, and the second waterway adapter sleeve is communicated with the waterway of the mold frame supporting plate.

4. A tool with a thread back-off and an independent waterway according to claim 3, wherein a second thread bushing is provided outside said second threaded component.

5. The mold of claim 3, wherein the first gear, the second gear and the third gear are driven by the rotation of the first gear, the second gear and the third gear to rotate the first threaded part and the second threaded part.

6. The mold of claim 2, wherein the driving device is fixed to an outer fixing plate, the outer fixing plate is connected to an inner fixing plate through a guide post, and the inner fixing plate is connected to the mold frame support frame.

7. The mold of claim 2, wherein a movable plate is slidably disposed on the guide post, the movable plate is connected to the rack, and the driving device drives the movable plate to move.

8. The die with the thread back-off and the independent waterway according to claim 1, wherein a first thread sleeve is arranged outside the first thread part.

9. The die of claim 1 wherein the first threaded element has a rotation stop element attached thereto.

10. The mold according to claim 1, further comprising a face plate, a splitter plate, a cavity insert fixing plate, a core insert fixing plate, a mold frame support plate and a bottom plate, wherein the face plate, the splitter plate, the cavity insert fixing plate, the core insert fixing plate, the mold frame support plate and the bottom plate are sequentially arranged, and the mold frame support plate comprises a first mold frame support plate and a second mold frame support plate.

Background

The die is various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to shape an article, the tool being made up of various parts, and different molds being made up of different parts. The method realizes the processing of the appearance of the article mainly by changing the physical state of the formed material, and the article is called as 'industrial mother'.

The thread mould is mainly a device for producing parts with required thread shapes. After the part is formed, the thread mold is generally demolded forcibly by using a push plate, or demolded by rotating and retreating the thread part on the male mold side.

When the push plate is adopted for demoulding, the push plate is contacted with a product, certain acting force is applied to the product, the product is separated from the mould by force, the product is deformed to a certain degree at the contact position of the product and the push plate, and the quality of the product is even influenced in severe cases.

When the thread bushing is adopted to realize the backward demoulding, although the mould can completely realize the characteristics, the strength and the performance of a product, the cooling mode is single, and the space is more restricted, so that the period is sacrificed, the manufacturing cost of the product is higher, the size is unstable, and the phenomena of easy pulling, even blocking and the like caused by easy thermal deformation of thread parts occur.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the die with the threads retreating and unscrewing and the independent water channel, so that the thread demoulding can be realized, the independent cooling can be realized, and the processing qualified rate is improved.

The invention is realized by the following technical scheme:

the utility model provides a screw thread is retreated and is revolved mould that takes off and be equipped with independent water route, needle and die carrier backup pad in the center that uses including the cooperation, the water route of needle links to each other in the water route of die carrier backup pad and the center, still establish the first screw thread part in the needle outside in the center including the cover, first screw thread part overcoat is equipped with first water route switching cover, be provided with on the first screw thread part with the water inlet of the water route intercommunication of needle in the center, still be provided with the delivery port that links to each other with first water route switching cover, first water route switching cover with the water route intercommunication of die carrier backup pad.

The die with the threads retreating and unscrewing and the independent water paths further comprises a driving device, the driving device drives a rack to move, the rack is connected with a gear, and the gear is connected with the first thread part.

A screw thread retreat and revolve the mould that takes off and be equipped with independent water route, the gear still is connected with second screw thread part, second screw thread part cover is established in the water route bush outside, the water route bush intercommunication the water route of die carrier backup pad, second screw thread part overcoat is equipped with second water route switching cover, be provided with the water inlet that links to each other with the water route bush on the second screw thread part, still be provided with the delivery port that links to each other with second water route switching cover, second water route switching cover with die carrier backup pad water route intercommunication.

The die is provided with a thread retreating and unscrewing part and an independent water channel, and a second thread sleeve is arranged outside the second thread part.

The die with the threads retreating and unscrewing and the independent water paths is characterized in that the first gear, the second gear and the third gear of the gear drive the first thread part and the second thread part to rotate through the rotation of the first gear, the second gear and the third gear.

The die is characterized in that the threads are retreated and unscrewed and an independent water path is arranged, the driving device is fixed on an outer fixing plate, the outer fixing plate is connected with an inner fixing plate through a guide pillar, and the inner fixing plate is connected with the die carrier supporting frame.

The die with the threads retreating and unscrewing and the independent water channel is characterized in that a movable plate is arranged on the guide pillar and can slide on the guide pillar, the movable plate is connected with the rack, and the driving device drives the movable plate to move.

The die is provided with a thread retreating and unscrewing part and an independent water channel, and a first thread sleeve is arranged outside the first thread part.

The mold is provided with a thread retreating and unscrewing part and an independent water channel, and the first thread part is connected with a rotation stopping part.

The mold with the thread retreating and the rotary releasing and the independent water path further comprises a panel, a splitter plate, a cavity insert fixing plate, a core insert fixing plate, a mold frame supporting plate and a base plate which are sequentially arranged, wherein the mold frame supporting plate comprises a first mold frame supporting plate and a second mold frame supporting plate.

The invention achieves the following beneficial effects:

according to the mold, the first thread part is used for carrying out thread removing operation, and meanwhile, the first thread part is communicated with the first water path adapter sleeve and the central inner needle, so that the cooling water path is directly communicated to control the temperature of the mold, and parts of all parts contacting with a plastic product are cooled uniformly. Through independent refrigerated water route, take off the product soon when realizing that the screw part moves back, the mould structure is more stable, maintains that the maintenance time is shorter, and production efficiency is higher, practices thrift the cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of another angle of the present invention;

FIG. 4 is a cross-sectional view of the thread stripping assembly of the present invention;

FIG. 5 is a cross-sectional view of another angle of the thread stripping assembly of the present invention;

FIG. 6 is a rear view of the present invention;

FIG. 7 is a top view of the present invention;

FIG. 8 is an isometric view of the present invention;

FIG. 9 is an enlarged partial view of FIG. 8;

FIG. 10 is an isometric view of a molded part of the invention.

In the figure: 1. the core insert comprises a core insert, 2, a rotation stopping part, 3, a first waterway adapter sleeve, 4, a heat conducting pipe, 5, a central inner needle, 6, a first thread sleeve, 7, a first thread part, 8, a second waterway adapter sleeve, 9, a waterway bushing, 10, a second thread part, 11, a second thread sleeve, 12, an outer fixing plate, 13, a movable plate, 14, an inner fixing plate, 15, a driving device, 16, a rack, 17, a first gear, 18, a second gear, 19, a third gear, 20, a rack fixing plate, 21, a guide pillar, 31, a panel, 32, a flow distribution plate, 33, a core insert fixing plate, 34, a core insert fixing plate, 35, a first die carrier supporting plate, 36, a second die carrier supporting plate, 39 and a bottom plate.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1-9, the mold with the back-off screw thread and the independent water path of the invention comprises a female mold assembly, a male mold assembly and an ejection system, wherein the male mold assembly comprises a mold plate assembly provided with a plurality of mold cavities, a screw thread removing assembly and a screw core with one end communicated with the water path.

Specifically, the mold base comprises a panel 31, a splitter plate 32, a cavity fixing plate 33, a core fixing plate 34, a mold base support plate and a bottom plate 39 which are arranged in sequence, wherein the mold base support plate comprises a first mold base support plate 35 and a second mold base support plate 36.

The mold core is internally provided with a central inner needle 5, a water path of the second mold frame supporting plate 36 is connected with a water path of the central inner needle 5, the mold core further comprises a first threaded part 7 which is sleeved outside the central inner needle 5, a first water path switching sleeve 3 is sleeved outside the first threaded part 7, a water inlet communicated with the water path of the central inner needle 5 is formed in the first threaded part 7, a water outlet connected with the first water path switching sleeve 3 is further formed in the first threaded part 7, and the first water path switching sleeve 3 is communicated with the water path of the second mold frame supporting plate 36.

The cooling water flows into the water channel in the central inner needle 5 from the water channel of the second mold frame supporting plate 36, then flows into the first threaded part 7, then flows into the first water channel adapter sleeve 3, and finally returns to the water channel of the second mold frame supporting plate 36 again, so that the product is cooled.

In particular, the device further comprises a driving device 15, wherein the driving device 15 drives a rack 16 to move, and a gear is connected to the rack 16 and is connected to the first threaded part 7.

The driving device 15 is an oil cylinder. The rack 16 is moved by the drive means 15 and the gear wheel is rotated, which in turn rotates the first threaded part 7.

The gear still is connected with second screw part 10, second screw part 10 cover is established in the water route bush 9 outside, water route bush 9 intercommunication the water route of second die carrier backup pad 36, 10 overcoat of second screw part is equipped with second water route switching cover 8, be provided with the water inlet that links to each other with water route bush 9 on the second screw part 10, still be provided with the delivery port that links to each other with second water route switching cover 8, second water route switching cover 8 with 36 water routes intercommunication of second die carrier backup pad.

The second threaded part 10 is rotated by means of a gear. And cooling water flows into the waterway bushing from the waterway of the second die carrier support plate 36, then flows into the second threaded part 10, flows into the second waterway adapter sleeve 8, and finally returns to the waterway of the second die carrier support plate 36 again to finish cooling the product.

The specific product is shown in fig. 10.

A second thread sleeve 11 is arranged outside the second thread part 10, and the driving device 15 drives the second thread part 10 to rotate in the second thread sleeve 11 to move up and down.

Specifically, the gears of the first gear 17, the second gear 18 and the third gear 19 drive the first threaded part 7 and the second threaded part 10 to rotate through the rotation of the first gear 17, the second gear 18 and the third gear 19.

Specifically, the driving device 15 is fixed to an outer fixing plate 12, the outer fixing plate 12 is connected to an inner fixing plate 14 through a guide post 21, and the inner fixing plate 14 is connected to the first and second mold frame support frames 35 and 36.

A movable plate 13 is disposed on the guide post 21, the movable plate 13 is capable of sliding on the guide post 21, the movable plate 13 is connected to the rack 16, and the driving device 15 drives the movable plate 13 to move.

One end of the rack 16 penetrates through the inner side fixing plate 14 and is fixed on a rack fixing plate 20, and the rack fixing plate 20 is connected with a movable handle; the movable plate 13 is fixed with a guide sleeve so as to slide and reciprocate on the guide post 21.

Specifically, a first threaded sleeve 6 is arranged outside the first threaded part 7, and the driving device 15 drives the first threaded part 7 to rotate and move up and down in the first threaded sleeve 6.

The first thread part 7 is connected with a rotation stopping part 2, and the rotation stopping part 2 only moves up and down when the first thread part 7 rotates and retreats.

After the injection molding of the mold of the invention is finished, the oil cylinder 15 drives the movable plate 13 to move downwards to drive the rack 16, so that the first gear 17, the second gear 18, the third gear 19, the first threaded part 7 and the second threaded part 10 rotate backwards and completely leave the threaded characteristic area of the product from the mold cavity, and the thread demolding is finished. Meanwhile, cooling water can also enter the first threaded part 7 and the second threaded part 10 to cool the product, so that strain is avoided, and the machining efficiency is improved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.