A compression molding device and method for hard alloy plate

Abstract

The present invention belongs to the field of cemented carbide die pressing technology, and in particular to a die pressing forming device and method for cemented carbide plates. In view of the problems in the prior art that a large amount of heat is generated by the upper die head and the lower die head during the stamping process, there are certain risks in manual material removal by personnel, and the degree of automation is low, the following scheme is proposed, which includes: a workbench, a bracket fixedly connected to one side of the top of the workbench, a lifting plate is provided above the workbench, and a sliding box is slidably connected to the top of the lifting plate; a molding component is arranged in the bracket and is used for molding the raw material. In the present invention, the lifting and lowering of the template and the upper die head can be driven by the cylinder, so that demoulding and material removal can be automatically completed. The left and right movement of the sliding box can not only apply stamping oil to the lower die head and the upper die head, but also automatically fill the mold groove, so that no manual operation is required during the entire operation process of the molding, and the degree of automation is high.

Description

Technical Field

[0001] The invention relates to the technical field of cemented carbide die pressing, and in particular to a die pressing forming device and method for a cemented carbide plate. Background Art

[0002] Cemented carbide is an alloy material made from hard compounds of refractory metals and bonding metals through powder metallurgy. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance.

[0003] The utility model with announcement number CN209811029U provides a cemented carbide molding device for easy stripping, including: a bottom plate; a movable frame, the bottom of the movable frame is fixed to the top of the bottom plate; a fixed plate, the two sides of the fixed plate are respectively fixed to the two sides of the inner wall of the movable frame; a molding mechanism, the bottom of the molding mechanism is fixed to the top of the fixed plate, and the molding mechanism includes a bottom mold, the bottom of the bottom mold is fixed to the top of the fixed plate. The cemented carbide molding device for easy stripping provided by the utility model can squeeze different positions of the stripping plate, so that the stripping plate can be more comprehensively stripped from the workpiece, and the demolding force is balanced to avoid local squeezing force that causes damage to the workpiece, and it is simple to operate, highly practical, time-saving and labor-saving, and does not require staff to manually strip the material, thereby improving the stripping efficiency and effect, meeting the use of different factories, and facilitating market promotion.

[0004] The above technical solution still has the following deficiencies:

[0005] 1. Since there is no automatic application of stamping oil, the upper and lower dies will generate a lot of heat during the stamping process, causing the temperature of the mold to rise, thus affecting the accuracy of the processing size and the life of the mold;

[0006] 2. Although the above technical solution can automatically complete demoulding, it requires staff to manually take out the material when taking out the plate, which not only increases the labor intensity of the staff, but also there is still a certain risk in taking the material under the upper die head;

[0007] 3. The above technical solution requires workers to manually load and take out materials during compression molding, resulting in a low degree of automation, which in turn leads to an increase in production costs.

[0008] In view of the above problems, the present invention document proposes a compression molding device and method for cemented carbide plates. Summary of the invention

[0009] The present invention provides a compression molding device and method for cemented carbide plates, which solve the shortcomings of the prior art that a large amount of heat is generated by an upper die head and a lower die head during the stamping process, there are certain risks in manual material removal by personnel, and the degree of automation is low.

[0010] The present invention provides the following technical solutions:

[0011] A die-casting device for cemented carbide plates comprises: a workbench, a bracket fixedly connected to one side of the top of the workbench, a lifting plate is arranged above the workbench, and a sliding box is slidably connected to the top of the lifting plate;

[0012] A compression molding component is disposed in the support and is used for compression molding the raw material;

[0013] A lifting assembly is arranged on one side of the bracket and is used to control the lifting and lowering of the lifting plate and enable the plate to be automatically demoulded;

[0014] A material taking component is arranged in the bracket and is used to take out the demoulded plate from the lifting plate;

[0015] An oiling assembly, arranged on the top of the sliding box, for applying stamping oil;

[0016] A filler assembly is arranged in the sliding box and is used for automatically adding raw materials.

[0017] In one possible design, the compression molding assembly includes a cylinder fixedly passing through a bracket, the output shaft of the cylinder is fixedly connected to a template, the bottom of the template is fixedly connected to an upper die head, the top of the workbench is fixedly connected to a lower die head, a mold groove is provided in the lifting plate for slidingly cooperating with the upper die head and the lower die head, a plurality of limit rods are fixedly connected to the top of the workbench, and the top ends of the limit rods slide through the lifting plate.

[0018] In one possible design, the lifting assembly includes a sliding plate slidably connected to the side of the bracket close to the lifting plate, the top of the sliding plate is fixedly connected to a load-bearing plate slidably connected to the bracket, the top of the load-bearing plate is fixedly connected to a first spring, and the top of the first spring is fixedly connected to the top inner wall of the bracket, and one side of the load-bearing plate extends to the top of the template, the side of the sliding plate close to the lifting plate is fixedly connected to a first rack, the side of the bracket close to the lifting plate is rotatably connected to a gear through a base, and the side of the lifting plate close to the bracket is fixedly connected to a second rack, and the gear is respectively meshed with the second rack and the first rack.

[0019] The cam is secured to the bottom of the workbench with an L-shaped spring which is fixedly connected to the side of the lift plate to release the cam.

[0020] In a possible design, the oiling assembly includes a stamping oil tank arranged in a sliding box, a second coating cotton layer for oiling the upper die head is fixedly connected to the top of the sliding box, a first coating cotton layer for oiling the lifting plate and the lower die head is fixedly connected to the bottom of the sliding box, a liquid pump is fixedly connected to one side of the sliding box, a liquid inlet fixed sleeve of the liquid pump is provided with a liquid inlet pipe extending into the stamping oil tank, a liquid outlet of the liquid pump is fixedly connected to a first liquid outlet pipe and a second liquid outlet pipe through a three-way angle valve, and the other ends of the first liquid outlet pipe and the second liquid outlet pipe extend to the first coating cotton layer respectively. The liquid pump pumps the stamping oil in the stamping oil tank into the first smear cotton layer and the second smear cotton layer respectively. At this time, the lifting plate is flush with the lower die head. When the sliding box moves toward the mold groove, the first smear cotton layer can apply stamping oil to the top of the lower die head. Then the lifting plate and the upper die head move toward each other. At this time, the bottom end of the upper die head is about to touch the top of the sliding box. At this time, the sliding box returns to reset, and the second smear cotton layer can apply stamping oil to the bottom end of the upper die head to prevent the temperature of the upper and lower die heads from rising during the molding process, thereby affecting the accuracy of the processing size and the life of the mold.

[0021] In one possible design, the filling assembly includes a discharge bin arranged in a sliding box, the bottom inner wall of the discharge bin is provided with a discharge port cooperating with the mold groove, the top of the lifting plate is provided with a sliding groove, a threaded rod is rotatably connected in the sliding groove, a nut block is slidably connected to the threaded rod, and the nut block is fixedly connected to the sliding box, one side of the lifting plate is fixedly connected with a rotating motor, and the output shaft of the rotating motor extends into the sliding groove and is fixedly connected to the threaded rod, the threaded rod is driven to rotate by starting the rotating motor, and the threaded rod drives the sliding box to move toward the mold groove through the nut block, when the discharge port is aligned with the mold groove, the lifting plate moves downward to release the filling of the mold groove by the lower die head, at this time the raw material in the discharge bin enters the mold groove through the discharge port, and then while the sliding box moves, it can not only automatically fill the material but also apply stamping oil to the lower die head and the upper die head through the first smear cotton layer and the second smear cotton layer.

[0022] When the lifting plate moves upward, the pushing block can push the pushing block to slide upward and stretch the second spring, and when the lifting plate moves up, the L-shaped rotating rod can rotate counterclockwise to push the pushing block and the sliding rod to move toward the bracket. When the pushing block is out of contact with the lifting plate under the action of the sliding rod, the pushing block is reset under the action of the second spring and abuts against one side of the lifting plate, so as to push the plate again next time. In addition, when the sliding box moves to the left to apply stamping oil to the lower die head, one side of the sliding box touches the inclined surface of the pushing block, and then the pushing block, the L-shaped fixed plate and the sliding rod can be pushed toward the bracket to prevent the pushing block from blocking the sliding box, and it is also convenient for the L-shaped fixed plate to block the lifting plate when the lifting plate moves up later.

[0023] In a possible design, a conveyor belt for conveying the plate is provided on the side of the workbench away from the lifting plate, and the height of the conveyor belt is slightly lower than the height of the lower die head, a plurality of third springs are fixedly connected to the top of the workbench, and the top of the third spring is fixedly connected to the bottom of the lifting plate, a rubber triangle block for scraping off residual raw materials on the top of the lifting plate and the lower die head is fixedly connected to the side of the sliding box close to the mold groove, and an annular scraper is fixedly connected to the inner wall of the discharge port, which can ensure that the raw materials in the discharge bin will not flow out of the sliding box when the sliding box moves.

[0024] In a possible design, a step is provided on the side of the lifting plate close to the conveyor belt, and a rotating groove is provided on the inner wall at the bottom of the step. A plurality of rubber wheels are rotatably connected in the rotating groove. When the pushing block pushes the molded sheet toward the conveyor belt, the step is connected to the sliding groove, so that the sheet can be prevented from being obstructed by the inner wall of the sliding groove during the movement of the sheet. In addition, the sheet falls to the top of the rubber wheel on the step under the action of inertia, and the inertia of the sheet can drive the rubber wheel to rotate. The rubber wheel can smoothly move the sheet to the conveyor belt, so that the conveyor belt transports the sheet to the next process, preventing the sheet from bumping into each other.

[0025] The method for using the compression molding device for a cemented carbide plate comprises the following steps:

[0026] S1. Start the lower die head, and the output shaft of the cylinder drives the template and the upper die head to move downward. The upper die head extends into the die groove and cooperates with the lower die head to mold the raw material powder in the die groove. After the molding is completed, the output shaft of the cylinder drives the template and the upper die head to return to the initial height;

[0027] S2, then the output shaft of the cylinder drives the template to continue to move upward, the template pushes the bearing plate upward and squeezes the first spring, the bearing plate drives the sliding plate and the first rack to move upward, the first rack meshes with the gear, and then the rotation of the gear drives the second rack to move downward, and the second rack drives the lifting plate to move downward until the top of the lifting plate is flush with the top of the lower die head, and the plate formed in the mold groove is now located above the lower die head and the lifting plate;

[0028] S3. As the lifting plate moves downward and drives the L-shaped rotating rod to rotate clockwise, the L-shaped rotating rod releases the obstruction of the protrusion, and the lifting plate moves downward until it is flush with the top of the lower die head and the bottom of the pushing block. After the pushing block loses the obstruction of the lifting plate, the elastic force of the fourth spring pushes the L-shaped fixed plate, the pushing block and the sliding rod to move in the direction of the mold groove, thereby pushing the molded sheet in the direction of the conveyor belt. The sheet falls to the top of the rubber wheel on the step under the push of the pushing block, and then the inertia of the sheet can drive the rubber wheel to rotate, and the rubber wheel can smoothly move the sheet to the conveyor belt, so that the conveyor belt conveys the sheet to the next process;

[0029] S4. After the sheet leaves, the rotating motor is started to drive the threaded rod to rotate, the threaded rod is threadedly connected with the nut block, and the nut block drives the sliding box to slide toward the mold groove. As the sliding box moves, the rubber triangle block can scrape the raw material powder remaining on the lifting plate and the top of the lower die head to the left, and as the sliding box moves, the liquid pump is started. The liquid pump pumps the stamping oil in the stamping oil tank into the first smear cotton layer and the liquid pump through the liquid inlet pipe, the first liquid outlet pipe and the second liquid outlet pipe, respectively, and the sliding box drives the first smear cotton layer to move to the left, and the first smear cotton layer can smear the stamping oil on the top of the lower die head;

[0030] S5, then the sliding box continues to move to the left, and when the discharge port is aligned with the top of the lower die head, the cylinder is started, and the output shaft of the cylinder drives the template and the upper die head to move downward, and the sliding plate and the first rack slide downward under the elastic force of the first spring and the gravity of the load-bearing plate itself, and the second rack and the lifting plate move upward under the action of the gear, and then the mold groove is exposed again, and the lifting plate moves up until the bottom end of the upper die head is about to touch the bottom of the sliding box, and at this time, the raw material powder in the discharge bin enters the mold groove through the discharge port, and when the powder fills the mold groove, the sliding box resets to the right, and when the sliding box moves, the second smear cotton layer touches the bottom end of the upper die head, and the second smear cotton layer smears stamping oil on the upper die head. In addition, when the sliding box resets, the annular scraper can scrape the raw material in the mold groove flat;

[0031] S6. In addition, when the lifting plate moves up, the top of the lifting plate touches the bottom of the pushing block and pushes the pushing block to slide upward and stretch the second spring, and the upward movement of the lifting plate drives the L-shaped rotating rod to rotate counterclockwise, and the L-shaped rotating rod pushes the sliding rod, the L-shaped fixed plate and the pushing block to slide toward the bracket through the protrusion, and the fourth spring begins to compress. When the pushing block is out of contact with the lifting plate, the pushing block moves downward and resets under the pulling force of the second spring. At this time, the pushing block contacts one side of the lifting plate under the elastic force of the fourth spring, which makes it convenient to push the molded plate onto the conveyor belt again later.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0033] In the present invention, a second smear cotton layer is fixedly connected to the top of the sliding box, a first smear cotton layer is fixedly connected to the bottom of the sliding box, a first liquid outlet pipe and a second liquid outlet pipe are fixedly connected to the liquid outlet of the liquid pump, and the other ends of the first liquid outlet pipe and the second liquid outlet pipe extend into the first smear cotton layer and the second smear cotton layer respectively, the liquid pump pumps the stamping oil in the stamping oil tank into the first smear cotton layer and the second smear cotton layer respectively, at this time, the lifting plate is flush with the lower die head, when the sliding box moves toward the mold groove, the first smear cotton layer can apply stamping oil to the top of the lower die head, then the lifting plate and the upper die head move toward each other, at this time, the bottom end of the upper die head is about to touch the top of the sliding box, at this time, the sliding box returns, and the second smear cotton layer can apply stamping oil to the bottom end of the upper die head, so as to prevent the temperature of the upper and lower die heads from rising during the molding process, thereby affecting the accuracy of the processing size and the life of the mold;

[0034] The L-shaped fixing plate is fixedly connected to one side of the sliding rod close to the lifting plate, and the L-shaped fixing plate is slidably connected to a pushing block on one side of the sliding rod close to the lifting plate, and a protrusion extending into the rectangular hole is fixedly connected to one side of the sliding rod, and one end of the L-shaped rotating rod away from the lifting plate extends into the rectangular hole and cooperates with the protrusion. When the lifting plate moves downward, not only the lifting plate and the pushing block are blocked by the pushing block, but also the L-shaped rotating rod and the protrusion are blocked. When the lifting plate is located below the pushing block, the pushing block pushes the plate on the lower die head toward the conveyor belt under the elastic force of the fourth spring, and then the material can be automatically taken out after the demoulding is completed, without the need for manual material taking, that is, the material taking risk is reduced, the material taking speed is increased, and the efficiency of compression molding is improved.

[0035] In the present invention, a discharge port matched with the mold groove is provided in the discharge bin, and an annular scraper is fixedly connected to the inner wall of the discharge port. The threaded rod is driven to rotate by starting the rotating motor, and the threaded rod drives the sliding box to move toward the mold groove through the nut block. When the discharge port is aligned with the mold groove, the lifting plate moves downward to release the lower die head from filling the mold groove. At this time, the raw materials in the discharge bin enter the mold groove through the discharge port, and then, while the sliding box moves, not only can the filling be automatically performed, but also the stamping oil can be applied to the lower die head and the upper die head through the first smear cotton layer and the second smear cotton layer. Moreover, the annular scraper can ensure that the raw materials in the discharge bin will not flow out of the sliding box when the sliding box moves.

[0036] In the present invention, the top of the sliding plate is fixedly connected to a load-bearing plate slidably connected to the bracket, the side of the sliding plate close to the lifting plate is fixedly connected to the first rack, the side of the lifting plate close to the bracket is fixedly connected to the second rack, and the gears are respectively meshed with the second rack and the first rack, the output shaft of the cylinder drives the template to move upward, the template drives the sliding plate and the first rack to move upward through the load-bearing plate, and the meshing of the gear and the second rack can drive the lifting plate to move downward, when the lifting plate is flush with the lower die head, and then the plate can be automatically demoulded and pushed to the conveyor belt, without manual demoulding and material taking, thereby reducing the work intensity of the staff and improving the forming efficiency.

[0037] In the present invention, by starting the cylinder to drive the template and the upper die head to rise and fall, the lifting plate can be driven to rise and fall, thereby automatically completing demoulding and material removal. The left and right movement of the sliding box can not only quickly apply stamping oil to the lower die head and the upper die head, but also automatically fill the mold groove with stuff. Therefore, no manual operation is required during the entire operation process of the compression molding, the degree of automation is high, and the risks generated during material removal and filling are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the three-dimensional structure of a compression molding device for a cemented carbide plate provided by an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a compression molding device for a cemented carbide plate provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the three-dimensional structure of the push block and the slide box of a compression molding device for a cemented carbide plate provided by an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of a three-dimensional structure of a first rack, a second rack and a first rack in cooperation with a die-casting device for a cemented carbide plate provided by an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of a three-dimensional exploded structure of an ejection component of a compression molding device for a cemented carbide plate provided by an embodiment of the present invention;

[0043] Figure 6 A schematic diagram of the three-dimensional structure of a sliding box of a compression molding device for a cemented carbide plate provided by an embodiment of the present invention;

[0044] Figure 7 A schematic diagram of a three-dimensional cross-sectional structure of a sliding box of a compression molding device for a cemented carbide plate provided by an embodiment of the present invention;

[0045] Figure 8 A schematic diagram of the cross-sectional structure of a lifting plate of a compression molding device for a cemented carbide plate provided in Example 2 of the present invention;

[0046] Fig. 9 This is an enlarged structural schematic diagram of point A of a compression molding device for a cemented carbide plate provided in an embodiment of the present invention in Example 2.

[0047] Reference numerals:

[0048] 1. Workbench; 2. Bracket; 3. Lifting plate; 4. Mold slot; 5. Lower die head; 6. Cylinder; 7. Template; 8. Upper die head; 9. Sliding plate; 10. First rack; 11. Gear; 12. Load-bearing plate; 13. First spring; 14. Second rack; 15. Limit rod; 16. Sliding rod; 17. Bump; 18. Rectangular hole; 19. L-shaped rotating rod; 20. L-shaped fixing plate; 21. Second spring; 22. Pushing block; 23. Sliding box; 24. Discharging bin; 2 5. Discharge port; 26. Stamping oil tank; 27. First smear cotton layer; 28. Second smear cotton layer; 29. ​​Liquid pump; 30. Liquid inlet pipe; 31. First liquid outlet pipe; 32. Second liquid outlet pipe; 33. Sliding groove; 34. Threaded rod; 35. Nut block; 36. Rotating motor; 37. Conveyor belt; 38. Rotating block; 39. Third spring; 40. Rubber triangle block; 41. Annular scraper; 42. Fourth spring; 43. Step; 44. Rotating groove; 45. Rubber wheel. DETAILED DESCRIPTION

[0049] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0051] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0052] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0054] Example 1

[0055] Reference Figure 1 , Figure 2 and Figure 3 The present embodiment is a die-casting device for a cemented carbide plate, comprising: a workbench 1, a bracket 2 fixedly connected to one side of the top of the workbench 1, a lifting plate 3 is arranged above the workbench 1, a sliding box 23 is slidably connected to the top of the lifting plate 3, a die-casting component is arranged in the bracket 2, and is used for die-casting the raw material, a lifting component is arranged on one side of the bracket 2, and is used to control the lifting and lowering of the lifting plate 3 and automatically demold the plate, a material taking component is arranged in the bracket 2, and is used to take the demolded plate from the lifting plate 3, an oiling component is arranged on the top of the sliding box 23, and is used to apply stamping oil, and a filling component is arranged in the sliding box 23, and is used to automatically In order to dynamically add raw materials, a conveyor belt 37 for conveying the plate is provided on the side of the workbench 1 away from the lifting plate 3, and the height of the conveyor belt 37 is slightly lower than the height of the lower die head 5. A plurality of third springs 39 are fixedly connected to the top of the workbench 1, and the top of the third spring 39 is fixedly connected to the bottom of the lifting plate 3. A rubber triangle block 40 for scraping off the residual raw materials on the top of the lifting plate 3 and the lower die head 5 is fixedly connected to the side of the sliding box 23 close to the mold groove 4 by bolts, and an annular scraper 41 is fixedly connected to the inner wall of the discharge port 25 by bolts. The annular scraper 41 can ensure that the raw materials in the discharge bin 24 will not flow out of the sliding box 23 when the sliding box 23 moves.

[0056] Reference Figure 1 The compression molding assembly includes a cylinder 6 which is fixed through the bracket 2 by bolts, the output shaft of the cylinder 6 is fixedly connected to the template 7 by bolts, the bottom of the template 7 is fixedly connected to the upper die head 8 by bolts, the top of the workbench 1 is fixedly connected to the lower die head 5 by bolts, and a mold groove 4 which is slidably matched with the upper die head 8 and the lower die head 5 is provided in the lifting plate 3, and a plurality of limit rods 15 are fixedly connected to the top of the workbench 1 by bolts, and the top ends of the limit rods 15 slide through the lifting plate 3.

[0057] Reference Figure 4 The lifting assembly includes a sliding plate 9 slidably connected to the side of the bracket 2 close to the lifting plate 3, the top of the sliding plate 9 is fixedly connected to a load-bearing plate 12 slidably connected to the bracket 2 by bolts, the top of the load-bearing plate 12 is fixedly connected to a first spring 13, and the top of the first spring 13 is fixedly connected to the top inner wall of the bracket 2, and one side of the load-bearing plate 12 extends to the top of the template 7, the side of the sliding plate 9 close to the lifting plate 3 is fixedly connected to a first rack 10 by bolts, the side of the bracket 2 close to the lifting plate 3 is rotatably connected to a gear 11 through a base, and the lifting plate 3 close to One side of the bracket 2 is fixedly connected with the second rack 14 by bolts, and the gear 11 is meshed with the second rack 14 and the first rack 10 respectively. The output shaft of the cylinder 6 drives the template 7 to move upward, and the template 7 drives the sliding plate 9 and the first rack 10 to move upward through the load-bearing plate 12. The engagement of the gear 11 and the second rack 14 can drive the lifting plate 3 to move downward. At this time, the lifting plate 3 is flush with the lower die head 5, and the sheet can be automatically demoulded and pushed to the conveyor belt 37. There is no need for manual demoulding and material collection, which reduces the work intensity of the staff and improves the forming efficiency.

[0058] Reference Figure 2 and Figure 5 The material taking assembly includes a sliding rod 16 that slides through the bracket 2, and the sliding rod 16 is fixedly connected to an L-shaped fixed plate 20 on one side close to the lifting plate 3 by bolts, and the bottom of the L-shaped fixed plate 20 is flush with the top of the lower die head 5. A plurality of fourth springs 42 are fixedly connected to one side of the bracket 2 close to the lifting plate 3, and the other end of the fourth spring 42 is fixedly connected to the L-shaped fixed plate 20, and a push block 22 for pushing the plate out is slidably connected to the side of the L-shaped fixed plate 20 close to the lifting plate 3. The top of the workbench 1 is rotatably connected to an L-shaped rotating rod 19, and one end of the L-shaped rotating rod 19 is rotatably connected to a rotating block 38. The top of the rotating block 38 is slidably connected to the bottom of the lifting plate 3, and the bracket 2 A rectangular hole 18 is provided inside, and one side of the sliding rod 16 is fixedly connected with a protrusion 17 extending into the rectangular hole 18 by bolts. The end of the L-shaped rotating rod 19 away from the lifting plate 3 extends into the rectangular hole 18 and cooperates with the protrusion 17. When the lifting plate 3 moves downward, not only the lifting plate 3 releases the obstruction of the pushing block 22, but also the L-shaped rotating rod 19 releases the obstruction of the protrusion 17. When the lifting plate 3 is located below the pushing block 22, the pushing block 22 pushes the plate on the lower die head 5 toward the conveyor belt 37 under the elastic force of the fourth spring 42, and then the material can be automatically picked up after the demoulding is completed, without manual picking up, that is, the risk of picking up is reduced, the picking up speed is increased, and the efficiency of compression molding is improved.

[0059] Reference Figure 6 Figure 7The oiling assembly includes a stamping oil tank 26 arranged in the sliding box 23, a second coating cotton layer 28 for coating the upper die head 8 with oil is fixedly connected to the top of the sliding box 23, a first coating cotton layer 27 for coating the lifting plate 3 and the lower die head 5 with oil is fixedly connected to the bottom of the sliding box 23, a liquid pump 29 is fixedly connected to one side of the sliding box 23 by bolts, a liquid inlet of the liquid pump 29 is fixedly sleeved with a liquid inlet pipe 30 extending into the stamping oil tank 26, a liquid outlet of the liquid pump 29 is fixedly connected to a first liquid outlet pipe 31 and a second liquid outlet pipe 32 through a three-way angle valve, and the other ends of the first liquid outlet pipe 31 and the second liquid outlet pipe 32 extend to the first coating cotton layer 27 and the second coating cotton layer 27, respectively. In the cotton layer 28, the liquid pump 29 pumps the stamping oil in the stamping oil groove 26 into the first smear cotton layer 27 and the second smear cotton layer 28 respectively. At this time, the lifting plate 3 is flush with the lower die head 5. When the sliding box 23 moves toward the mold groove 4, the first smear cotton layer 27 can apply stamping oil to the top of the lower die head 5. Then the lifting plate 3 and the upper die head 8 move toward each other. At this time, the bottom end of the upper die head 8 is about to touch the top of the sliding box 23. At this time, the sliding box 23 returns to reset. The second smear cotton layer 28 can apply stamping oil to the bottom end of the upper die head 8 to prevent the temperature of the upper die head 8 and the lower die head 5 from rising during the molding process, thereby affecting the accuracy of the processing size and the life of the mold.

[0060] Reference Figure 6 and Figure 7 The filler assembly includes a discharge bin 24 arranged in the sliding box 23, a discharge port 25 matched with the mold groove 4 is arranged on the bottom inner wall of the discharge bin 24, a sliding groove 33 is arranged on the top of the lifting plate 3, a threaded rod 34 is rotatably connected in the sliding groove 33, a nut block 35 threadedly connected with the threaded rod 34 is slidably connected in the sliding groove 33, and the nut block 35 is fixedly connected to the sliding box 23, and a rotating motor 36 is fixedly connected to one side of the lifting plate 3 by bolts, and the output shaft of the rotating motor 36 extends into the sliding groove 33 and is connected to the threaded rod 34 by a coupling. The shaft is fixedly connected, and the threaded rod 34 is driven to rotate by starting the rotating motor 36. The threaded rod 34 drives the sliding box 23 to move toward the mold groove 4 through the nut block 35. When the discharge port 25 is aligned with the mold groove 4, the lifting plate 3 moves downward to release the filling of the mold groove 4 by the lower die head 5. At this time, the raw material in the discharge bin 24 enters the mold groove 4 through the discharge port 25. Then, while the sliding box 23 moves, it can not only automatically fill the material, but also apply stamping oil to the lower die head 5 and the upper die head 8 through the first coating cotton layer 27 and the second coating cotton layer 28.

[0061] Reference Figure 5A plurality of second springs 21 are fixedly connected to the top of one side of the L-shaped fixed plate 20, and the top of the second spring 21 is fixedly connected to the bottom of one side of the pushing block 22. A slope is provided on the side of the pushing block 22 close to the sliding box 23. After the pushing block 22 pushes the plate toward the conveyor belt 37 under the elastic force of the fourth spring 42, the lifting plate 3 starts to reset and move upward. The lifting plate 3 can push the pushing block 22 to slide upward and stretch the second spring 21. When the lifting plate 3 moves upward, the L-shaped rotating rod 19 can rotate counterclockwise to push the pushing block 22 and the sliding rod 16 to move toward the bracket 2. When the pushing block 2 When the push block 22 is out of contact with the lifting plate 3 under the action of the sliding rod 16, the push block 22 is reset under the action of the second spring 21 and abuts against one side of the lifting plate 3, so as to facilitate pushing the plate again next time. In addition, when the sliding box 23 moves to the left to apply stamping oil to the lower die head 5, one side of the sliding box 23 touches the inclined surface of the push block 22, so that the push block 22, the L-shaped fixed plate 20 and the sliding rod 16 can be pushed toward the bracket 2, preventing the push block 22 from blocking the sliding box 23, and also facilitating the L-shaped fixed plate 20 to block the lifting plate 3 when the lifting plate 3 moves upward in the later stage.

[0062] Example 2

[0063] Reference Figure 1 , Figure 2 and Figure 3 The present embodiment is a die-casting device for a cemented carbide plate, comprising: a workbench 1, a bracket 2 fixedly connected to one side of the top of the workbench 1, a lifting plate 3 is arranged above the workbench 1, a sliding box 23 is slidably connected to the top of the lifting plate 3, a die-casting component is arranged in the bracket 2, and is used for die-casting the raw material, a lifting component is arranged on one side of the bracket 2, and is used to control the lifting and lowering of the lifting plate 3 and automatically demold the plate, a material taking component is arranged in the bracket 2, and is used to take the demolded plate from the lifting plate 3, an oiling component is arranged on the top of the sliding box 23, and is used to apply stamping oil, and a filling component is arranged in the sliding box 23, and is used to automatically In order to dynamically add raw materials, a conveyor belt 37 for conveying the plate is provided on the side of the workbench 1 away from the lifting plate 3, and the height of the conveyor belt 37 is slightly lower than the height of the lower die head 5. A plurality of third springs 39 are fixedly connected to the top of the workbench 1, and the top of the third spring 39 is fixedly connected to the bottom of the lifting plate 3. A rubber triangle block 40 for scraping off the residual raw materials on the top of the lifting plate 3 and the lower die head 5 is fixedly connected to the side of the sliding box 23 close to the mold groove 4 by bolts, and an annular scraper 41 is fixedly connected to the inner wall of the discharge port 25 by bolts. The annular scraper 41 can ensure that the raw materials in the discharge bin 24 will not flow out of the sliding box 23 when the sliding box 23 moves.

[0064] Reference Figure 1The compression molding assembly includes a cylinder 6 which is fixed through the bracket 2 by bolts, the output shaft of the cylinder 6 is fixedly connected to the template 7 by bolts, the bottom of the template 7 is fixedly connected to the upper die head 8 by bolts, the top of the workbench 1 is fixedly connected to the lower die head 5 by bolts, and a mold groove 4 which is slidably matched with the upper die head 8 and the lower die head 5 is provided in the lifting plate 3, and a plurality of limit rods 15 are fixedly connected to the top of the workbench 1 by bolts, and the top ends of the limit rods 15 slide through the lifting plate 3.

[0065] Reference Figure 4 The lifting assembly includes a sliding plate 9 slidably connected to the side of the bracket 2 close to the lifting plate 3, the top of the sliding plate 9 is fixedly connected to a load-bearing plate 12 slidably connected to the bracket 2 by bolts, the top of the load-bearing plate 12 is fixedly connected to a first spring 13, and the top of the first spring 13 is fixedly connected to the top inner wall of the bracket 2, and one side of the load-bearing plate 12 extends to the top of the template 7, the side of the sliding plate 9 close to the lifting plate 3 is fixedly connected to a first rack 10 by bolts, the side of the bracket 2 close to the lifting plate 3 is rotatably connected to a gear 11 through a base, and the lifting plate 3 close to One side of the bracket 2 is fixedly connected with the second rack 14 by bolts, and the gear 11 is meshed with the second rack 14 and the first rack 10 respectively. The output shaft of the cylinder 6 drives the template 7 to move upward, and the template 7 drives the sliding plate 9 and the first rack 10 to move upward through the load-bearing plate 12. The engagement of the gear 11 and the second rack 14 can drive the lifting plate 3 to move downward. At this time, the lifting plate 3 is flush with the lower die head 5, and the sheet can be automatically demoulded and pushed to the conveyor belt 37. There is no need for manual demoulding and material collection, which reduces the work intensity of the staff and improves the forming efficiency.

[0066] Reference Figure 2 and Figure 5The material taking assembly includes a sliding rod 16 that slides through the bracket 2, and the sliding rod 16 is fixedly connected to an L-shaped fixed plate 20 on one side close to the lifting plate 3 by bolts, and the bottom of the L-shaped fixed plate 20 is flush with the top of the lower die head 5. A plurality of fourth springs 42 are fixedly connected to one side of the bracket 2 close to the lifting plate 3, and the other end of the fourth spring 42 is fixedly connected to the L-shaped fixed plate 20, and a push block 22 for pushing the plate out is slidably connected to the side of the L-shaped fixed plate 20 close to the lifting plate 3. The top of the workbench 1 is rotatably connected to an L-shaped rotating rod 19, and one end of the L-shaped rotating rod 19 is rotatably connected to a rotating block 38. The top of the rotating block 38 is slidably connected to the bottom of the lifting plate 3, and the bracket 2 A rectangular hole 18 is provided inside, and one side of the sliding rod 16 is fixedly connected with a protrusion 17 extending into the rectangular hole 18 by bolts. The end of the L-shaped rotating rod 19 away from the lifting plate 3 extends into the rectangular hole 18 and cooperates with the protrusion 17. When the lifting plate 3 moves downward, not only the lifting plate 3 releases the obstruction of the pushing block 22, but also the L-shaped rotating rod 19 releases the obstruction of the protrusion 17. When the lifting plate 3 is located below the pushing block 22, the pushing block 22 pushes the plate on the lower die head 5 toward the conveyor belt 37 under the elastic force of the fourth spring 42, and then the material can be automatically picked up after the demoulding is completed, without manual picking up, that is, the risk of picking up is reduced, the picking up speed is increased, and the efficiency of compression molding is improved.

[0067] Reference Figure 6 Figure 7 The oiling assembly includes a stamping oil tank 26 arranged in the sliding box 23, a second coating cotton layer 28 for coating the upper die head 8 with oil is fixedly connected to the top of the sliding box 23, a first coating cotton layer 27 for coating the lifting plate 3 and the lower die head 5 with oil is fixedly connected to the bottom of the sliding box 23, a liquid pump 29 is fixedly connected to one side of the sliding box 23 by bolts, a liquid inlet of the liquid pump 29 is fixedly sleeved with a liquid inlet pipe 30 extending into the stamping oil tank 26, a liquid outlet of the liquid pump 29 is fixedly connected to a first liquid outlet pipe 31 and a second liquid outlet pipe 32 through a three-way angle valve, and the other ends of the first liquid outlet pipe 31 and the second liquid outlet pipe 32 extend to the first coating cotton layer 27 and the second coating cotton layer 27, respectively. In the cotton layer 28, the liquid pump 29 pumps the stamping oil in the stamping oil groove 26 into the first smear cotton layer 27 and the second smear cotton layer 28 respectively. At this time, the lifting plate 3 is flush with the lower die head 5. When the sliding box 23 moves toward the mold groove 4, the first smear cotton layer 27 can apply stamping oil to the top of the lower die head 5. Then the lifting plate 3 and the upper die head 8 move toward each other. At this time, the bottom end of the upper die head 8 is about to touch the top of the sliding box 23. At this time, the sliding box 23 returns to reset. The second smear cotton layer 28 can apply stamping oil to the bottom end of the upper die head 8 to prevent the temperature of the upper die head 8 and the lower die head 5 from rising during the molding process, thereby affecting the accuracy of the processing size and the life of the mold.

[0068] Reference Figure 6 and Figure 7The filler assembly includes a discharge bin 24 arranged in the sliding box 23, a discharge port 25 matched with the mold groove 4 is arranged on the bottom inner wall of the discharge bin 24, a sliding groove 33 is arranged on the top of the lifting plate 3, a threaded rod 34 is rotatably connected in the sliding groove 33, a nut block 35 threadedly connected with the threaded rod 34 is slidably connected in the sliding groove 33, and the nut block 35 is fixedly connected to the sliding box 23, and a rotating motor 36 is fixedly connected to one side of the lifting plate 3 by bolts, and the output shaft of the rotating motor 36 extends into the sliding groove 33 and is connected to the threaded rod 34 by a coupling. The shaft is fixedly connected, and the threaded rod 34 is driven to rotate by starting the rotating motor 36. The threaded rod 34 drives the sliding box 23 to move toward the mold groove 4 through the nut block 35. When the discharge port 25 is aligned with the mold groove 4, the lifting plate 3 moves downward to release the filling of the mold groove 4 by the lower die head 5. At this time, the raw material in the discharge bin 24 enters the mold groove 4 through the discharge port 25. Then, while the sliding box 23 moves, it can not only automatically fill the material, but also apply stamping oil to the lower die head 5 and the upper die head 8 through the first coating cotton layer 27 and the second coating cotton layer 28.

[0069] Reference Figure 5 A plurality of second springs 21 are fixedly connected to the top of one side of the L-shaped fixed plate 20, and the top of the second spring 21 is fixedly connected to the bottom of one side of the pushing block 22. A slope is provided on the side of the pushing block 22 close to the sliding box 23. After the pushing block 22 pushes the plate toward the conveyor belt 37 under the elastic force of the fourth spring 42, the lifting plate 3 starts to reset and move upward. The lifting plate 3 can push the pushing block 22 to slide upward and stretch the second spring 21. When the lifting plate 3 moves upward, the L-shaped rotating rod 19 can rotate counterclockwise to push the pushing block 22 and the sliding rod 16 to move toward the bracket 2. When the pushing block 2 When the push block 22 is out of contact with the lifting plate 3 under the action of the sliding rod 16, the push block 22 is reset under the action of the second spring 21 and abuts against one side of the lifting plate 3, so as to facilitate pushing the plate again next time. In addition, when the sliding box 23 moves to the left to apply stamping oil to the lower die head 5, one side of the sliding box 23 touches the inclined surface of the push block 22, so that the push block 22, the L-shaped fixed plate 20 and the sliding rod 16 can be pushed toward the bracket 2, preventing the push block 22 from blocking the sliding box 23, and also facilitating the L-shaped fixed plate 20 to block the lifting plate 3 when the lifting plate 3 moves upward in the later stage.

[0070] Reference Figure 8 and Fig. 9A step 43 is provided on one side of the lifting plate 3 close to the conveyor belt 37, and a rotating groove 44 is provided on the inner wall at the bottom of the step 43. A plurality of rubber wheels 45 are rotatably connected in the rotating groove 44. When the pushing block 22 pushes the molded sheet toward the conveyor belt 37, the step 43 is connected to the sliding groove 33, so that the sheet can be prevented from being obstructed by the inner wall of the sliding groove 33 during the movement of the sheet. In addition, the sheet falls to the top of the rubber wheel 45 on the step 43 under the action of inertia, and then the inertia of the sheet can drive the rubber wheel 45 to rotate. The rubber wheel 45 can smoothly move the sheet to the conveyor belt 37, so that the conveyor belt 37 transports the sheet to the next process to prevent the sheet from being bumped.

[0071] A method for using a compression molding device for a cemented carbide plate comprises the following steps:

[0072] S1, start the lower die head 5, the output shaft of the cylinder 6 drives the template 7 and the upper die head 8 to move downward, the upper die head 8 extends into the die groove 4 and cooperates with the lower die head 5 to mold the raw material powder in the die groove 4. After the molding is completed, the output shaft of the cylinder 6 drives the template 7 and the upper die head 8 to return to the initial height;

[0073] S2, then the output shaft of the cylinder 6 drives the template 7 to continue to move upward, the template 7 pushes the bearing plate 12 to move upward and squeezes the first spring 13, the bearing plate 12 drives the sliding plate 9 and the first rack 10 to move upward, the first rack 10 is meshed with the gear 11, and then the rotation of the gear 11 drives the second rack 14 to move downward, and the second rack 14 drives the lifting plate 3 to move downward until the top of the lifting plate 3 is flush with the top of the lower die head 5, and the plate formed in the mold groove 4 is now located above the lower die head 5 and the lifting plate 3;

[0074] S3. As the lifting plate 3 moves downward and drives the L-shaped rotating rod 19 to rotate clockwise, the L-shaped rotating rod 19 releases the obstruction of the protrusion 17, and the lifting plate 3 moves downward until it is flush with the top of the lower die head 5 and the bottom of the pushing block 22. After the pushing block 22 loses the obstruction of the lifting plate 3, the elastic force of the fourth spring 42 pushes the L-shaped fixed plate 20, the pushing block 22 and the sliding rod 16 to move in the direction of the mold groove 4, thereby being able to push the molded sheet material in the direction of the conveyor belt 37. The sheet material falls to the top of the rubber wheel 45 on the step 43 under the push of the pushing block 22, and then the inertia of the sheet material can drive the rubber wheel 45 to rotate, and the rubber wheel 45 can smoothly move the sheet material to the conveyor belt 37, so that the conveyor belt 37 conveys the sheet material to the next process;

[0075] S4, when the plate leaves, the rotating motor 36 is started to drive the threaded rod 34 to rotate, the threaded rod 34 is threadedly connected with the nut block 35, and the nut block 35 drives the sliding box 23 to slide in the direction of the mold groove 4, and as the sliding box 23 moves, the rubber triangle block 40 can scrape the raw material powder remaining on the top of the lifting plate 3 and the lower die head 5 to the left, and as the sliding box 23 moves, the liquid pump 29 is started, and the liquid pump 29 pumps the stamping oil in the stamping oil groove 26 into the first smear cotton layer 27 and the liquid pump 29 through the liquid inlet pipe 30, the first liquid outlet pipe 31 and the second liquid outlet pipe 32, respectively, and the sliding box 23 drives the first smear cotton layer 27 to move to the left, and the first smear cotton layer 27 can smear stamping oil on the top of the lower die head 5;

[0076] S5, then the sliding box 23 continues to move to the left, and when the discharge port 25 is aligned with the top of the lower die head 5, the cylinder 6 is started, and the output shaft of the cylinder 6 drives the template 7 and the upper die head 8 to move downward, and the sliding plate 9 and the first rack 10 slide downward under the elastic force of the first spring 13 and the gravity of the load-bearing plate 12 itself, and the second rack 14 and the lifting plate 3 move upward under the action of the gear 11, and then the mold groove 4 is exposed again, and the lifting plate 3 moves up until the bottom end of the upper die head 8 is about to touch the bottom of the sliding box 23, at this time, the raw material powder in the discharge bin 24 enters the mold groove 4 through the discharge port 25, when the powder fills the mold groove 4, the sliding box 23 resets to the right, and when the sliding box 23 moves, the second smear cotton layer 28 touches the bottom end of the upper die head 8, and the second smear cotton layer 28 applies stamping oil to the upper die head 8. In addition, when the sliding box 23 is reset, the annular scraper 41 can scrape the raw material in the mold groove 4 flat;

[0077] S6. In addition, when the lifting plate 3 moves upward, the top of the lifting plate 3 touches the bottom of the pushing block 22 and pushes the pushing block 22 to slide upward and stretch the second spring 21, and the upward movement of the lifting plate 3 drives the L-shaped rotating rod 19 to rotate counterclockwise, and the L-shaped rotating rod 19 pushes the sliding rod 16, the L-shaped fixing plate 20 and the pushing block 22 to slide toward the bracket 2 through the protrusion 17, and the fourth spring 42 begins to compress. When the pushing block 22 is out of contact with the lifting plate 3, the pushing block 22 moves downward and resets under the pulling force of the second spring 21. At this time, the pushing block 22 contacts one side of the lifting plate 3 under the elastic force of the fourth spring 42, which makes it convenient to push the molded plate onto the conveyor belt 37 again in the later stage.

[0078] However, as is well known to those skilled in the art, the working principles and wiring methods of the rotating motor 36, the liquid pump 29 and the cylinder 6 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0079] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A compression molding device for a cemented carbide plate, characterized in that: include: A workbench (1), a bracket (2) fixedly connected to one side of the top of the workbench (1), a lifting plate (3) being provided above the workbench (1), and a sliding box (23) being slidably connected to the top of the lifting plate (3); A compression molding component, arranged in the support (2), and used for compression molding the raw material; The compression molding assembly comprises a cylinder (6) fixedly passing through a bracket (2); an output shaft of the cylinder (6) is fixedly connected to a template (7); an upper die head (8) is fixedly connected to the bottom of the template (7); a lower die head (5) is fixedly connected to the top of the workbench (1); a mold groove (4) slidably matched with the upper die head (8) and the lower die head (5) is provided in the lifting plate (3); a plurality of limit rods (15) are fixedly connected to the top of the workbench (1), and the top ends of the limit rods (15) slidably pass through the lifting plate (3); A lifting component, arranged on one side of the bracket (2), used to control the lifting and lowering of the lifting plate (3) and to enable the plate to be automatically demoulded; A material taking component, arranged in the support (2), and used for taking the demoulded plate out from the lifting plate (3); The material taking assembly comprises a sliding rod (16) that slides through the bracket (2); a side of the sliding rod (16) close to the lifting plate (3) is fixedly connected to an L-shaped fixing plate (20), and the bottom of the L-shaped fixing plate (20) is flush with the top of the lower die head (5); a side of the bracket (2) close to the lifting plate (3) is fixedly connected to a plurality of fourth springs (42), and the other end of the fourth spring (42) is fixedly connected to the L-shaped fixing plate (20); a side of the L-shaped fixing plate (20) close to the lifting plate (3) is slidably connected to a spring for pushing the plate out; A pushing block (22), the top of the workbench (1) is rotatably connected to an L-shaped rotating rod (19), one end of the L-shaped rotating rod (19) is rotatably connected to a rotating block (38), the top of the rotating block (38) is slidably connected to the bottom of the lifting plate (3), a rectangular hole (18) is provided in the bracket (2), one side of the sliding rod (16) is fixedly connected to a protrusion (17) extending into the rectangular hole (18), and one end of the L-shaped rotating rod (19) away from the lifting plate (3) extends into the rectangular hole (18) and cooperates with the protrusion (17); A plurality of second springs (21) are fixedly connected to the top of one side of the L-shaped fixed plate (20), the top of the second spring (21) is fixedly connected to the bottom of one side of the push block (22), and a slope is provided on the side of the push block (22) close to the sliding box (23). When the lifting plate (3) moves upward, the top of the lifting plate (3) contacts the bottom of the push block (22) and pushes the push block (22) to slide upward and stretch the second spring (21). When the push block (22) is no longer in contact with the lifting plate (3), the push block (22) moves downward and resets under the pulling force of the second spring (21). At this time, the push block (22) contacts one side of the lifting plate (3) under the elastic force of the fourth spring (42). An oiling assembly is arranged on the top of the sliding box (23) and is used for applying stamping oil. The top of the sliding box (23) is fixedly connected to a second cotton coating layer (28) for applying oil to the upper die head (8), and the bottom of the sliding box (23) is fixedly connected to a first cotton coating layer (27) for applying oil to the lifting plate (3) and the lower die head (5); A filler assembly is arranged in the sliding box (23) and is used for automatically adding raw materials.

2. A compression molding device for a cemented carbide plate according to claim 1, characterized in that: The lifting assembly comprises a sliding plate (9) slidably connected to a side of the bracket (2) close to the lifting plate (3); a top end of the sliding plate (9) is fixedly connected to a load-bearing plate (12) slidably connected to the bracket (2); a top end of the load-bearing plate (12) is fixedly connected to a first spring (13), and a top end of the first spring (13) is fixedly connected to a top inner wall of the bracket (2); one side of the load-bearing plate (12) extends to above the template (7); a side of the sliding plate (9) close to the lifting plate (3) is fixedly connected to a first rack (10); a side of the bracket (2) close to the lifting plate (3) is rotatably connected to a gear (11) via a base; a side of the lifting plate (3) close to the bracket (2) is fixedly connected to a second rack (14), and the gear (11) is meshed with the second rack (14) and the first rack (10), respectively.

3. A compression molding device for a cemented carbide plate according to claim 2, characterized in that: The oiling assembly comprises a stamping oil tank (26) arranged in a sliding box (23); a liquid pump (29) is fixedly connected to one side of the sliding box (23); a liquid inlet of the liquid pump (29) is fixedly sleeved with a liquid inlet pipe (30) extending into the stamping oil tank (26); a liquid outlet of the liquid pump (29) is fixedly connected to a first liquid outlet pipe (31) and a second liquid outlet pipe (32) via a three-way angle valve; the other end of the first liquid outlet pipe (31) extends into the first smear cotton layer (27); and the other end of the second liquid outlet pipe (32) extends into the second smear cotton layer (28).

4. A compression molding device for a cemented carbide plate material according to claim 3, characterized in that: The filler assembly comprises a discharge bin (24) arranged in a sliding box (23); a discharge port (25) cooperating with the mold groove (4) is provided on the inner wall of the bottom of the discharge bin (24); a sliding groove (33) is provided on the top of the lifting plate (3); a threaded rod (34) is rotatably connected in the sliding groove (33); a nut block (35) threadedly connected to the threaded rod (34) is slidably connected in the sliding groove (33); the nut block (35) is fixedly connected to the sliding box (23); a rotating motor (36) is fixedly connected to one side of the lifting plate (3); and an output shaft of the rotating motor (36) extends into the sliding groove (33) and is fixedly connected to the threaded rod (34).

5. A compression molding device for cemented carbide sheet material according to claim 4, characterized in that: A conveyor belt (37) for conveying the plate is provided on a side of the workbench (1) away from the lifting plate (3); a plurality of third springs (39) are fixedly connected to the top of the workbench (1), and the top ends of the third springs (39) are fixedly connected to the bottom of the lifting plate (3); a rubber triangular block (40) for scraping off residual raw materials on the top of the lifting plate (3) and the lower die head (5) is fixedly connected to a side of the sliding box (23) close to the mold groove (4); and an annular scraper (41) is fixedly connected to the inner wall of the discharge port (25).

6. A compression molding device for cemented carbide plates according to claim 5, characterized in that: A step (43) is provided on one side of the lifting plate (3) close to the conveyor belt (37), a rotation groove (44) is provided on the inner wall at the bottom of the step (43), and a plurality of rubber wheels (45) are rotatably connected in the rotation groove (44).

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