Die for punch forming of friction plate
By designing a friction sheet stamping mold containing a limit cover and a heat conducting pipe, the problems of raw material offset and mold thermal deformation are solved, and high-quality friction sheet molding and long life of the mold are achieved.
Patent Information
- Application Number
- CN202421700587.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The stamping molds used in the production and processing of existing friction sheets cannot be fixed at the limit of the raw materials, causing the raw materials to shift during stamping, affecting product quality, and the mold generates a large amount of heat during repeated stamping, resulting in thermal deformation and wear.
A mold is designed including a fixed seat, a lower mold seat, a spring, a top block, a stamping groove, a support rod, a fixed plate, a stamping equipment, a limit cover and other components. Through the coordination of the limit cover and the spring, the limit fixation of the raw material is achieved, and the temperature of the mold is reduced through the combination of a heat conducting pipe and a water pump.
It effectively avoids the deviation of raw materials during stamping, improves the product quality of the friction sheet, and extends the service life of the mold through cooling measures, reducing thermal deformation and wear.
Smart Images
Figure CN223011613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a mold for stamping and forming friction plates. Background Art
[0002] A friction plate refers to a component composed of a chip and a friction lining or a friction material layer, which is widely used in the fields of mechanical engineering, mechanical parts and clutches. There are many specifications and a large number of tablet presses. The tablet press is the pharmaceutical equipment with the longest production history in China, and it is also the earliest and largest in terms of exports. It can press round tablets, engraved tablets, special-shaped tablets, double-layer tablets, multi-layer tablets, ring-shaped tablets, encapsulated tablets and other tablet types. The number, variety specifications and output of tablet press manufacturers in China rank first in the world.
[0003] However, most of the existing stamping and forming molds for the production and processing of friction plates cannot limit and fix the raw materials. During stamping, the raw materials shift, resulting in the quality of the stamped friction plate products. Moreover, when the mold is repeatedly stamped, a large amount of heat is generated, leading to thermal deformation and wear of the mold. Content of the Utility Model
[0004] In order to solve the problem that most of the existing stamping and forming molds for the production and processing of friction plates cannot limit and fix the raw materials, resulting in the shift of the raw materials during stamping, the quality of the stamped friction plate products, and a large amount of heat generated during repeated stamping of the mold, leading to thermal deformation and wear of the mold; the purpose of the utility model is to provide a mold for stamping and forming friction plates.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A mold for stamping and forming friction plates, including a fixed seat, a lower mold base is fixedly installed at the top of the fixed seat, a first spring is fixedly installed on the upper part of the lower mold base, a top block is fixedly installed at the top of the first spring, a stamping groove is opened on the upper part of the lower mold base, four symmetrically distributed support rods are fixedly installed at the top of the lower mold base, a fixed plate is fixedly installed at the top of the four support rods, a stamping device is fixedly installed in the middle of the top of the fixed plate, the output end of the stamping device penetrates through the middle of the fixed plate, a fixed ring is fixedly installed on the upper part of the output end of the stamping device, a second spring is fixedly installed at the lower part of the fixed ring, a limiting cover is fixedly installed at the bottom end of the second spring, the output end of the stamping device slidably penetrates through the middle of the top end of the limiting cover, and an upper mold punch is arranged at the lower part of the fixed plate, and the middle of the top end of the upper mold punch is fixedly installed at the output end of the stamping device.
[0006] Preferably, a heat conduction tube is provided in the middle of the lower die base, a storage tank is fixedly installed in the middle of the fixed seat, a water pump is fixedly installed on one side of the storage tank, the input end of the water pump communicates with the storage tank, the input end of the heat conduction tube is fixedly installed at the output end of the water pump, and the output end of the heat conduction tube communicates with the storage tank.
[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0008] 1. This application can conveniently limit and fix the raw materials to be stamped, avoid the movement of the raw materials, resulting in unqualified quality of the stamped friction plates, and facilitate the taking of the stamped friction plates, thus improving the work efficiency.
[0009] 2. This application can cool down the lower die base of the stamping die, avoid the overheating of the lower die base during long-term stamping, and prevent the die from generating thermal deformation and wear. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0011] Figure 1 It is a schematic structural diagram of the present utility model.
[0012] Figure 2 It is a schematic connection structure diagram of the fixed seat and the fixed block in the present utility model.
[0013] Figure 3 It is a schematic sectional structure diagram of the present utility model.
[0014] Figure 4 For the present utility model Figure 3 The enlarged view of part A.
[0015] In the figure: 1. Fixed seat; 11. Fixed block; 12. Heat dissipation holes; 13. Storage tank; 14. Water pump; 15. Support rod; 2. Lower die base; 21. Cavity; 211. Heat conduction tube; 22. Top block; 221. Groove; 23. First spring; 231. Expansion rod; 24. Stamping groove; 3. Fixed plate; 31. Stamping equipment; 32. Fixed ring; 33. Second spring; 34. Limiting rod; 35. Upper die punch; 4. Limiting cover. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0017] Embodiment: As Figures 1-4 shown, the present utility model provides a mold for stamping and forming a friction plate, including a fixed seat 1. A lower die base 2 is fixedly installed at the top end of the fixed seat 1. A first spring 23 is fixedly installed on the upper part of the lower die base 2. A top block 22 is fixedly installed at the top end of the first spring 23. A stamping groove 24 is opened on the upper part of the lower die base 2. Four symmetrically distributed support rods 15 are fixedly installed at the top end of the lower die base 2. A fixing plate 3 is fixedly installed at the top ends of the four support rods 15. A stamping device 31 is fixedly installed in the middle of the top end of the fixing plate 3. The output end of the stamping device 31 penetrates through the middle of the fixing plate 3. A fixing ring 32 is fixedly installed on the upper part of the output end of the stamping device 31. A second spring 33 is fixedly installed at the lower part of the fixing ring 32. A limiting cover 4 is fixedly installed at the bottom end of the second spring 33. The output end of the stamping device 31 slidably penetrates through the middle of the top end of the limiting cover 4. An upper die punch 35 is arranged at the lower part of the fixing plate 3. The middle of the top end of the upper die punch 35 is fixedly installed on the output end of the stamping device 31.
[0018] A heat conduction pipe 211 is arranged in the middle of the lower die base 2. A storage tank 13 is fixedly installed in the middle of the fixed seat 1. A water pump 14 is fixedly installed on one side of the storage tank 13. The input end of the water pump 14 is communicated with the storage tank 13. The input end of the heat conduction pipe 211 is fixedly installed at the output end of the water pump 14. The output end of the heat conduction pipe 211 is communicated with the storage tank 13.
[0019] A groove body 221 is opened in the middle of the lower die base 2. The top block 22 is slidably clamped inside the groove body 221. By arranging the groove body 221, after the top block 22 is clamped inside the groove body 221, the upper surface of the top block 22 is flush with the upper surface of the stamping groove 24, so as not to affect the quality of the friction plate generated by stamping.
[0020] An expansion rod 231 is fixedly installed on the upper part of the lower die base 2. The telescopic end of the expansion rod 231 is fixedly installed at the middle of the bottom end of the top block 22. By arranging the expansion rod 231, the top block 22 moves more stably up and down and will not deviate.
[0021] Two symmetrically distributed limiting rods 34 are fixedly installed at the bottom end of the fixing ring 32. Both of the two limiting rods 34 slidably penetrate through the limiting cover 4. By arranging the limiting rods 34, the limiting cover 4 moves up and down to limit and fix the material to be stamped.
[0022] A cavity 21 is formed in the middle of the lower die base 2, and the heat conduction tube 211 is fixedly installed inside the cavity 21.
[0023] A plurality of heat dissipation holes 12 distributed in an array are formed in the middle of the bottom end of the fixing seat 1. By providing the heat dissipation holes 12, the storage box 13 is directly in contact with the outside air through the heat dissipation holes 12, accelerating the cooling rate of the coolant.
[0024] Four symmetrically distributed fixing blocks 11 are fixedly installed at the bottom end of the fixing seat 1. By providing the fixing blocks 11, the air at the lower part of the fixing seat 1 can flow, facilitating the cooling of the coolant stored in the storage box 13 through the heat dissipation holes 12.
[0025] Working principle: In actual use, place the raw material to be stamped and formed on the top end of the lower die base 2. Start the stamping device 31. While driving the upper die punch 35 to move downward to stamp the raw material, drive the fixing ring 32 to move downward, that is, drive the limiting cover 4 to move downward. The bottom end of the limiting cover 4 is lower than the lower surface of the upper die punch 35. When moving downward, the limiting cover 4 will contact the raw material first. By squeezing the second spring 33, the second spring 33 generates a reaction force, thereby limiting it and preventing the raw material from shifting during stamping and affecting the stamping effect. During stamping, when the upper die punch 35 moves downward, the friction plate to be formed is pushed into the stamping groove 24 of the lower die base 2. At this time, the top block 22 is pushed downward, so that the top block 22 is clamped inside the groove body 221. At this time, the upper surface of the top block 22 is flush with the upper surface of the stamping groove 24. At the same time, the first spring 23 is squeezed to contract inward. To avoid the formed friction plate being stuck in the stamping groove 24 on the upper part of the lower die base 2, when the top block 22 moves away from the friction plate, under the reaction force of the first spring 23, the top block 22 is pushed upward, so that the stamped and formed part falls off the stamping groove 24, that is, the demoulding is completed;
[0026] Driven by the water pump 14, the coolant inside the storage box 13 is pumped out, enters from one end of the heat conduction tube 211, the coolant flows inside the heat conduction tube 211, takes away the heat generated by the stamping of the lower die base 2, and the coolant is discharged from the other end of the heat conduction tube 211 and returns to the inside of the storage box 13 again.
[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.
Claims
1. A die for stamping a friction plate, comprising a fixing seat (1), characterized in that: A lower die base (2) is fixedly mounted on the top of the fixed base (1), a first spring (23) is fixedly mounted on the upper part of the lower die base (2), a top block (22) is fixedly mounted on the top of the first spring (23), a stamping groove (24) is provided on the upper part of the lower die base (2), four symmetrically distributed support rods (15) are fixedly mounted on the top of the lower die base (2), a fixed plate (3) is fixedly mounted on the top of the four support rods (15), a stamping device (31) is fixedly mounted on the middle part of the top of the fixed plate (3), and the stamping device The output end of the punching device (31) passes through the middle of the fixed plate (3); a fixing ring (32) is fixedly installed on the upper part of the output end of the punching device (31); a second spring (33) is fixedly installed on the lower part of the fixing ring (32); a limit cover (4) is fixedly installed on the bottom end of the second spring (33); the output end of the punching device (31) slides through the middle of the top end of the limit cover (4); an upper die punch (35) is provided at the lower part of the fixed plate (3); the middle of the top end of the upper die punch (35) is fixedly installed on the output end of the punching device (31).
2. A friction plate stamping die as claimed in claim 1, characterized in that: A heat conduction pipe (211) is provided in the middle of the lower mold base (2); a storage box (13) is fixedly installed in the middle of the fixed base (1); a water pump (14) is fixedly installed on one side of the storage box (13); an input end of the water pump (14) and the storage box (13) are interconnected; an input end of the heat conduction pipe (211) is fixedly installed at an output end of the water pump (14); and an output end of the heat conduction pipe (211) and the storage box (13) are interconnected.
3. A friction plate stamping die as claimed in claim 1, characterized in that: A groove body (221) is provided in the middle of the lower die base (2), and the top block (22) is slidably mounted inside the groove body (221).
4. A friction plate stamping die as claimed in claim 1, characterized in that: A telescopic rod (231) is fixedly mounted on the upper portion of the lower die base (2), and the telescopic end of the telescopic rod (231) is fixedly mounted on the middle portion of the bottom end of the top block (22).
5. A friction plate stamping die as claimed in claim 1, characterized in that: Two symmetrically distributed limiting rods (34) are fixedly mounted on the bottom end of the fixing ring (32), and both limiting rods (34) slide through the limiting cover (4).
6. A friction plate stamping die as claimed in claim 2, characterized in that: A cavity (21) is provided in the middle of the lower mold base (2), and the heat conducting pipe (211) is fixedly installed inside the cavity (21).
7. A friction plate stamping die as claimed in claim 1, characterized in that: A plurality of heat dissipation holes (12) distributed in an array are provided in the middle of the bottom end of the fixing seat (1).
8. A friction plate stamping die as claimed in claim 1, characterized in that: Four symmetrically distributed fixing blocks (11) are fixedly mounted on the bottom end of the fixing seat (1).