1. The utility model provides a can improve fine particle graphite product hot briquetting device in thickener compactness, includes processing platform (6) and portal frame (2), its characterized in that: the top end of the machining table (6) is provided with a portal frame (2), the top end of the portal frame (2) is riveted with a top plate (24), the outer part of the portal frame (2) is sleeved with a moving plate (3), the top end of the top plate (24) is fixedly connected with a cylinder (1), the output end of the cylinder (1) is provided with a piston rod (23), the piston rod (23) penetrates through the inner part of the top plate (24) and extends to the lower part of the top plate (24), the bottom end of the piston rod (23) is fixedly connected with the top end of the moving plate (3) through a steel sheet, the bottom end of the moving plate (3) is provided with an upper die holder (21), two sides of the bottom end of the machining table (6) are provided with support legs (7), one side of each support leg (7) is provided with a controller (8), a lower die holder (16) is welded and fixed between the support legs (7), the top end of the inner part of the lower die holder (16) is provided with an upper die cavity (18), the bottom end in the lower die holder (16) is provided with a lower cavity (12).

2. The device for hot press forming of fine-grained graphite products with improved paste compactness according to claim 1, wherein: lower die cavity (12) are seted up in the inside bottom of die holder (16), the inside of die cavity (12) has inlayed and is pressed platform (14) down, bottom fixedly connected with dead lever (15) of pressing platform (14) both sides, install flange (13) between dead lever (15) and the pressure platform (14), one side welding of keeping away from pressure platform (14) of dead lever (15) has adjusting collar (10), adjusting collar (10) cup joint the outside at stabilizer blade (7), adjustment tank (9) have been seted up to the inside of stabilizer blade (7), fixedly connected with locking bolt (11) between adjustment tank (9) and adjusting collar (10).

3. The device for hot press forming of fine-grained graphite products with improved paste compactness according to claim 1, wherein: the shape of the lower cavity (12) is matched with that of the pressing table (14), and the sections of the lower cavity (12) and the pressing table (14) are in a shape like a Chinese character 'tu'.

4. The device for hot press forming of fine-grained graphite products with improved paste compactness according to claim 1, wherein: the upper die cavity (18) is arranged at the top end of the lower die base (16), the middle position inside the processing table (6) is provided with a pressure groove (20), the upper die cavity (18) and the pressure groove (20) are aligned in the vertical direction, the edge of the top end of the pressure groove (20) is provided with an overflow edge groove (25), and the overflow edge groove (25) is annular.

5. The device for hot press forming of fine-grained graphite products with improved paste compactness according to claim 1, wherein: the die is characterized in that a die (17) is arranged inside the upper cavity (18), positioning bolts (19) are fixedly connected among the die (17), the lower die holder (16) and the processing table (6), four groups of positioning bolts (19) are arranged, and the shapes of the die (17) and the upper cavity (18) are matched.

6. The device for hot press forming of fine-grained graphite products with improved paste compactness according to claim 1, wherein: four corners swing joint of movable plate (3) has connecting rod (22), the bottom welding of connecting rod (22) has upper die base (21), inner chamber (4) have been seted up to the inside of upper die base (21) bottom, hot pressing module (5) have been inlayed to the inside of inner chamber (4).

Background

Graphite is a simple substance of carbon element widely used for manufacturing fine products such as electrodes, graphite fibers, electric brushes and the like, and has the advantages of high temperature resistance, good electric and thermal conductivity and strong plasticity. The carbon paste is soft in texture and can be used as a manufacturing raw material of a graphite product, the carbon paste is uniformly stirred in a kneading pot, the temperature is reduced to 110-140 ℃ to reach a certain bonding force, a cooling material with a certain temperature is uniformly filled into a die through a shutter distributor, the vacuum degree reaches below 0.095MPa, then, a press machine is used for hot press molding, and the required shapes and patterns of graphite rings, graphite round cakes and the like are pressed by using different dies. When a plurality of current hot presses are pressed, the dies are extruded for a long time and are prone to aging and deformation, so that the product precision is reduced, on the other hand, the pressing stability is insufficient, the dies can be displaced or shaken in the pressing process, and graphite paste overflowing from the dies during hot pressing is in a high-temperature state and is prone to damaging the table top.

Most importantly, due to the special structure of the graphite, pores among internal particles cannot be eliminated by one-time pressing, the surface of a product is easy to generate air holes and other defects, the compactness is poor, and the product is easy to crisp and easy to damage in practical use. Therefore, it is necessary to design a hot press forming device for fine graphite particles to increase the compactness of the paste, so as to fully discharge the waste gas in the paste and the mold, reduce the air holes, and increase the compactness and isotropy of the paste.

Disclosure of Invention

The invention aims to provide a hot-press molding device for fine-particle graphite products, which can improve the compactness of paste, so as to solve the problem of poor compactness in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a can improve fine grain graphite product hot briquetting device in thickener compactness, includes processing platform and portal frame, the portal frame is installed on the top of processing platform, the top riveting of portal frame has the roof, the movable plate has been cup jointed to the outside of portal frame, the top fixedly connected with cylinder of roof, the output of cylinder is provided with the piston rod, the piston rod runs through the inside of roof and extends to the below of roof, steel sheet fixed connection is passed through on the bottom of piston rod and the top of movable plate, the bottom of movable plate is provided with the upper die base, the stabilizer blade is installed to the both sides of processing platform bottom, the controller is installed to one side of stabilizer blade, welded fastening has the die holder between the stabilizer blade, the inside top of die holder is provided with the die cavity, the inside bottom of die holder is provided with down the die cavity.

Preferably, the bottom at the inside of die holder is seted up to lower die cavity, the pressure platform has been inlayed to the inside of lower die cavity, the bottom fixedly connected with dead lever of pressing the platform both sides, the dead lever with press and install flange between the platform, one side welding that the dead lever kept away from the pressure platform has the adjusting collar, the adjusting collar cup joints in the outside of stabilizer blade, the adjustment tank has been seted up to the inside of stabilizer blade, fixedly connected with locking bolt between adjustment tank and the adjusting collar.

Preferably, the shape of the lower cavity is matched with that of the pressing platform, and the cross sections of the lower cavity and the pressing platform are in a shape like a Chinese character 'tu'.

Preferably, the upper cavity is arranged at the top end of the lower die base, a pressure groove is arranged in the middle of the interior of the processing table, the upper cavity and the pressure groove are aligned in the vertical direction, an edge overflow groove is arranged at the edge of the top end of the pressure groove, and the edge overflow groove is annular.

Preferably, a mold is arranged inside the upper cavity, four groups of positioning bolts are fixedly connected among the mold, the lower die holder and the processing table, and the shape of the mold is matched with that of the upper cavity.

Preferably, four corners of the moving plate are movably connected with connecting rods, an upper die base is welded at the bottom end of each connecting rod, an inner cavity is formed in the bottom end of the upper die base, and a hot pressing module is embedded in the inner cavity.

Compared with the prior art, the invention has the beneficial effects that: the hot-press molding device for the medium-fine particle graphite product capable of improving the compactness of the paste not only realizes the improvement of the compactness of the product, realizes stable hot pressing without shaking, but also realizes the reduction of the deformation of a mold;

(1) by arranging the inner cavity, the hot-pressing module, the upper die holder and the connecting rod, when the piston rod of the cylinder drives the movable plate to move downwards, the hot-pressing module penetrates through the pressing groove and is pressed into the upper die cavity to perform hot-pressing molding on a graphite product, the hot-pressing module is completely pressed on the product along with continuous contact and extrusion of the bottom end of the hot-pressing module and the product, the movable plate is still pressed downwards at the moment until the top end of the hot-pressing module is accommodated into the inner cavity of the upper die holder, the upper die holder continues to be pressed downwards, the product is subjected to the pressure superposed by the inner cavity and the hot-pressing module, and the movable plate continues to move downwards until the bottom surface of the movable plate is pressed on the upper die holder, so that the product is subjected to three-time superposed pressure, the pressure is gradually increased, the pressing is more compact, the compactness of particles is improved, and the phenomenon of air holes is reduced;

(2) the die, the upper die cavity and the processing table are tightly fixed through the four groups of positioning bolts by arranging the die, the upper die cavity, the positioning bolts and the pressure tank, the die is firmly installed in the upper die cavity, the outer wall of the die is in fit with and clings to the inner wall of the upper die cavity, the die cannot shake or generate displacement during hot pressing, the positioning bolts are disassembled one by one to replace the die, graphite paste can overflow from the edge of the inner wall of the die during hot pressing, the edge overflow tank is arranged at the edge of the top of the pressure tank, the paste can be prevented from overflowing to damage the processing table, and the graphite paste can be conveniently taken out after being integrally formed for subsequent cutting;

(3) through being provided with the adjustment tank, the adjusting collar, the locking bolt, lower die cavity, flange, pressure platform and dead lever, be influenced by the long-term hot pressing of hot pressing module, the mould bottom easily produces deformation, consequently, press under the platform embedding die cavity, press the platform top to offset with the mould bottom, hot pressing man-hour, the extrusion force that comes from top hot pressing module and below pressure platform offsets relatively, reduce the bottom and warp, unscrew the locking bolt, make the dead lever can drive the adjusting collar and reciprocate outside the stabilizer blade, with the horizontal depth of die cavity under the platform embedding is pressed in the adjustment, thereby give not unidimensional mould bottom sprag power, the suitability is improved.

Drawings

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

FIG. 2 is a schematic top view of the pressure tank of the present invention;

FIG. 3 is a front view of the pressing table of the present invention;

FIG. 4 is a side view partially sectional enlarged structural schematic view of the mounting and dismounting mechanism of the present invention.

In the figure: 1. a cylinder; 2. a gantry; 3. moving the plate; 4. an inner cavity; 5. a hot-pressing module; 6. a processing table; 7. a support leg; 8. a controller; 9. an adjustment groove; 10. an adjusting sleeve; 11. a locking bolt; 12. a lower cavity; 13. a connecting flange; 14. pressing the table; 15. fixing the rod; 16. a lower die holder; 17. a mold; 18. an upper cavity; 19. positioning the bolt; 20. pressing a groove; 21. an upper die holder; 22. a connecting rod; 23. a piston rod; 24. a top plate; 25. and an overflow groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-4, a hot press molding device for fine graphite particles capable of improving compactness of paste comprises a processing table 6 and a portal frame 2, wherein the portal frame 2 is installed at the top end of the processing table 6, a top plate 24 is riveted to the top end of the portal frame 2, a moving plate 3 is sleeved outside the portal frame 2, an air cylinder 1 is fixedly connected to the top end of the top plate 24, a piston rod 23 is arranged at the output end of the air cylinder 1, the piston rod 23 penetrates through the inside of the top plate 24 and extends to the lower side of the top plate 24, the bottom end of the piston rod 23 is fixedly connected with the top end of the moving plate 3 through a steel sheet, an upper die holder 21 is arranged at the bottom end of the moving plate 3, support legs 7 are installed at two sides of the bottom end of the processing table 6, a controller 8 is installed at one side of each support leg 7, a lower die holder 16 is fixedly welded between the support legs 7, an upper die cavity 18 is arranged at the top end inside the lower die holder 16, and a lower die cavity 12 is arranged at the bottom end inside the lower die holder 16;

four corners of the moving plate 3 are movably connected with connecting rods 22, the bottom end of each connecting rod 22 is welded with an upper die holder 21, an inner cavity 4 is formed in the bottom end of each upper die holder 21, and a hot-pressing module 5 is embedded in each inner cavity 4;

specifically, as shown in fig. 1, 2 and 3, when the piston rod 23 of the cylinder 1 drives the moving plate 3 to move down, the hot-pressing module 5 passes through the pressing groove 20 and is pressed into the upper cavity 18 to perform hot-pressing molding on the graphite product, and as the bottom end of the hot-pressing module 5 is continuously contacted and extruded with the product, the hot-pressing module 5 is completely pressed on the product, and at this time, the moving plate 3 is still pressed down until the top end of the hot-pressing module 5 is received in the inner cavity 4 of the upper die holder 21, the upper die holder 21 continues to press down, and the product is subjected to the pressure superposed by the inner cavity 4 and the hot-pressing module 5, and the moving plate 3 continues to move down until the bottom surface is pressed on the upper die holder 21, so that the product is subjected to three times of superposed pressure, the pressing force is gradually increased, and the pressing is tighter, thereby improving the compactness of the particles and reducing the air hole phenomenon.

Example 2: the upper die cavity 18 is arranged at the top end of the lower die base 16, a pressure groove 20 is formed in the middle position inside the processing table 6, the upper die cavity 18 and the pressure groove 20 are aligned in the vertical direction, an edge overflow groove 25 is formed in the edge of the top end of the pressure groove 20, the overflow groove 25 is annular, a die 17 is installed inside the upper die cavity 18, positioning bolts 19 are fixedly connected among the die 17, the lower die base 16 and the processing table 6, four groups of the positioning bolts 19 are arranged, and the shapes of the die 17 and the upper die cavity 18 are matched;

specifically, as shown in fig. 1, 2 and 3, the mold 17, the upper cavity 18 and the processing table 6 are tightly fixed by four sets of positioning bolts 19, the mold 17 is firmly installed inside the upper cavity 18, the outer wall of the mold 17 is fitted and attached to the inner wall of the upper cavity 18, the mold 17 does not shake or displace during hot pressing, the positioning bolts 19 are removed one by one to replace the mold 17, graphite paste overflows from the edge of the inner wall of the mold 17 during hot pressing, and the edge overflow groove 25 is arranged at the top edge of the pressure groove 20 to prevent the paste from overflowing to damage the processing table 6, so that the paste can be taken out after being integrally formed to be conveniently cut.

Example 3: the lower die cavity 12 is arranged at the bottom end inside the lower die base 16, the pressing table 14 is embedded inside the lower die cavity 12, fixing rods 15 are fixedly connected to the bottom ends of two sides of the pressing table 14, a connecting flange 13 is arranged between the fixing rods 15 and the pressing table 14, an adjusting sleeve 10 is welded on one side, far away from the pressing table 14, of each fixing rod 15, the adjusting sleeve 10 is sleeved outside the support leg 7, an adjusting groove 9 is formed inside the support leg 7, and a locking bolt 11 is fixedly connected between each adjusting groove 9 and each adjusting sleeve 10;

the shape of the lower cavity 12 is matched with that of the pressing platform 14, and the sections of the lower cavity 12 and the pressing platform 14 are in a convex shape;

specifically, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the bottom of the mold 17 is easily deformed due to the long-term hot-pressing effect of the hot-pressing module 5, so that the pressing table 14 is embedded into the lower cavity 12, the top end of the pressing table 14 abuts against the bottom end of the mold 17, when in hot-pressing, the pressing forces from the upper hot-pressing module 5 and the lower pressing table 14 are relatively offset, so as to reduce the bottom deformation, the locking bolt 11 is loosened, so that the fixing rod 15 can drive the adjusting sleeve 10 to move up and down outside the supporting leg 7, so as to adjust the horizontal depth of the pressing table 14 embedded into the lower cavity 12, thereby providing the bottom supporting force for the molds 17 with different sizes, and improving the applicability.

The working principle is as follows: when the invention is used, firstly, a medium-fine particle graphite raw material is placed in a die 17, the product is pasty, a cylinder 1 is started on a controller 8, the output end of the cylinder 1 drives a piston rod 23 to extend out through compressed air, a moving plate 3 descends to drive an upper die holder 21 and a hot pressing module 5 to integrally descend, the hot pressing module 5 penetrates through a pressing groove 20 to press the raw material into the die 17 for hot pressing molding, the hot pressing module 5 descends slowly and continuously, the extrusion force on the product is larger and larger, the hot pressing module 5 is pressed on the product completely along with the continuous contact extrusion of the bottom end of the hot pressing module 5 and the product, the moving plate 3 is still pressed downwards until the top end of the hot pressing module 5 is put into an inner cavity 4 of the upper die holder 21, the upper die holder 21 continues to press downwards, the product is pressed by the pressure superposed by the inner cavity 4 and the moving plate hot pressing module 5, the moving plate 3 continues to move downwards until the bottom surface is pressed on the upper die holder 21, thus, the product is subjected to three times of superimposed pressure, the downward pressure is gradually increased, the pressing is tighter, the top end of the pressing platform 14 is abutted against the bottom end of the mold 17, during hot pressing, the extrusion forces from the upper hot pressing module 5 and the lower pressing platform 14 are relatively offset, the bottom deformation is reduced, during continuous extrusion, the graphite paste can overflow from the edge of the inner wall of the mold 17, the edge overflow groove 25 is arranged at the edge of the top of the pressing groove 20 to prevent the paste from overflowing to damage the processing platform 6, the paste can be conveniently taken out for subsequent cutting after integral forming, after the press forming, the piston rod 23 retracts, the movable plate 3 is lifted up and lifted up to reset, under the action of gravity, the upper mold base 21 is lifted up, the hot pressing module 5 is separated from the inner cavity 4 and lifted up, the pressing is completed, when daily maintenance is carried out, the positioning bolt 19 can be detached to replace the mold 17, the locking bolt 11 is unscrewed, so that the fixing rod 15 can drive the adjusting sleeve 10 to move up and down outside the supporting leg 7, so as to adjust the horizontal depth of the pressing table 14 embedded into the lower cavity 12, thereby giving the bottom supporting force to the molds 17 of different sizes.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.