A water channel brake pad forming die

By using a motor-driven threaded rod and an air pump in conjunction with the demolding template, the problem of repeated compression of brake pads by the mold was solved, achieving non-destructive demolding and improving the pass rate and production efficiency of brake pads.

CN224392033UActive Publication Date: 2026-06-23ZHEJIANG MINGTAI AUTO SPARE PARTS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MINGTAI AUTO SPARE PARTS
Filing Date
2025-07-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

During the vibration demolding process, the existing brake pad molding die repeatedly squeezes the brake pad, causing shape damage and stress concentration, which reduces the product qualification rate and production efficiency.

Method used

The system employs a motor-driven threaded rod and an air pump in conjunction with a demolding template and a limiting rod. The rotation of the threaded rod causes the demolding template to move upward, while the air pump delivers air to lift the brake pads. Combined with a hydraulic rod and a limiting rod, this prevents the mold from shifting, thus achieving non-destructive demolding.

Benefits of technology

This effectively avoids the squeezing and damage of brake pads by the mold, improves the product qualification rate and production efficiency, and reduces the risk of stress concentration in brake pads.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of water channel brake pad forming die, belong to brake pad production technical field, solve the existing device vibration mechanism back and forth vibration when driving forming mechanism, the brake pad after repeated extrusion forming of upper die and lower die, it can damage the appearance of brake pad and lead to stress concentration, reduce the problem of brake pad pass rate, including lower die, the top surface of lower die is equipped with forming cavity, the upper side of lower die is provided with upper die;The outer ring of the bottom surface of forming cavity is equipped with accommodating groove, circular hole is equipped in the bottom surface of the four corners of accommodating groove, the bottom surface of lower die is fixedly installed with U-shaped base, demoulding assembly is arranged between lower die and U-shaped base, air is discharged by demoulding plate cooperation air vent, brake pad is pushed out upwards, can reduce the pressure between brake pad and demoulding plate, reach the purpose of facilitating brake pad demoulding, be conducive to the protection of brake pad, be conducive to improving the pass rate of brake pad.
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Description

Technical Field

[0001] This utility model relates to the field of brake pad production technology, specifically to a water-groove brake pad forming mold. Background Technology

[0002] Water-grooved brake pads are brake pads specifically designed for vehicles driving through water troughs. They have good wear resistance and strong water drainage and chip removal capabilities. Using water-grooved brake pads can effectively improve the reliability and service life of the braking system and ensure vehicle driving safety.

[0003] According to the search, the patent application with patent number 202322531373.9 discloses a brake pad forming mold, including a working box. Several sliding rods are fixedly connected to the top of the working box, and a bearing plate is slidably connected to the sliding rods. A forming mechanism is provided on the top of the bearing plate, and two sets of vibration mechanisms are symmetrically arranged on both sides of the bearing plate.

[0004] Although the brake pad molding die uses a vibration mechanism to drive the support plate to vibrate the molding mechanism back and forth, separating the molded brake pad from the inner walls of the upper and lower mold cavities and avoiding damage to the molded material from direct demolding, the vibration mechanism driving the molding mechanism to reciprocate can easily cause the upper and lower molds to subject the molded brake pad to multiple unintended compressions during the vibration process. This repeated compression not only damages the intended shape and contour of the brake pad, causing dimensional deviations, but may also lead to stress concentration inside the brake pad, reducing its mechanical strength and friction performance. This severely affects product qualification rate and production efficiency, making it difficult to achieve efficient and stable operation of the vibration molding process.

[0005] Therefore, we propose a mold for forming brake pads with water channels. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a water-groove brake pad forming mold, which solves the problem that when the vibration mechanism drives the forming mechanism to vibrate back and forth in the existing device, the upper and lower molds repeatedly squeeze the formed brake pads, which damages the shape of the brake pads and causes stress concentration, thus reducing the pass rate of the brake pads.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a water-groove brake pad forming mold, including a lower mold, wherein a forming cavity is formed on the top surface of the lower mold, and an upper mold is provided above the lower mold;

[0008] The outer ring of the bottom surface of the molding cavity is provided with a receiving groove, and the four corners of the bottom surface of the receiving groove are provided with round holes. A U-shaped base is fixedly installed on the bottom surface of the lower mold, and a demolding component is provided between the lower mold and the U-shaped base.

[0009] The demolding assembly includes a motor fixedly installed in the middle of the bottom surface of the U-shaped base. The output end of the motor is fixedly connected to a threaded rod. The end of the threaded rod away from the motor is rotatably installed on the bottom surface of the lower mold through a bearing ring. A threaded sleeve is threaded onto the outer surface of the threaded rod. A base plate is fixedly installed onto the outer surface of the threaded sleeve. Connecting pipes are provided at the four corners of the top surface of the base plate. The connecting pipes are movably fitted into the round holes on the same side. A demolding template is fixedly installed on the top surface of the connecting pipe and movably fitted into the receiving groove.

[0010] Preferably, the specifications of the ejector plate are the same as those of the receiving groove, and a hollow gas collecting plate is fixedly installed on the top surface of the bottom plate. The bottom end of the connecting pipe is fixedly installed on the top surface of the gas collecting plate, and the connecting pipe is connected to the inner cavity of the gas collecting plate. The ejector plate can push the mold formed inside the forming cavity upward through the ejector plate.

[0011] Preferably, an air pump is fixedly installed on one side of the bottom surface of the U-shaped base, and the output end of the air pump is connected to a hose through a flange, wherein air is supplied to the inside of the hose by the air pump.

[0012] Preferably, the end of the hose away from the air pump is fixedly installed on the side wall of the air collecting plate. The hose is connected to the inner cavity of the air collecting plate. An air outlet is provided on the side of the connecting pipe facing the center of the molding cavity. Air entering the hose enters the interior of the connecting pipe through the air collecting plate and is then discharged through the air outlet.

[0013] Preferably, a U-shaped plate is fixedly installed in the middle of the top surface of the lower mold, and a hydraulic rod is fixedly installed in the middle of the top surface of the U-shaped plate. The output end of the hydraulic rod passes through the top surface of the U-shaped plate and is fixedly installed with an upper mold, wherein the upper mold can be moved up and down by the hydraulic rod.

[0014] Preferably, limit rods are fixedly installed on both the left and right sides of the top surface of the upper mold. The limit rods are movably fitted onto the top surface of the U-shaped plate. The limit rods can limit the movement of the upper mold and prevent the upper mold from shifting position when it moves.

[0015] This utility model provides a mold for forming brake pads with a water channel. It has the following beneficial effects:

[0016] 1. This water-groove brake pad forming mold uses a motor to drive a threaded rod to rotate, causing the threaded sleeve, base plate, connecting pipe, demolding plate, and air collecting plate to move upwards. The demolding plate then pushes the edge of the brake pad upwards. An air pump sequentially supplies air into the hose, air collecting plate, and connecting pipe. Finally, the air enters the forming cavity, pushing the brake pad upwards and completing the demolding process. This facilitates brake pad demolding. The air discharged through the demolding plate and air vents reduces the pressure between the brake pad and the demolding plate, protecting the brake pad and improving its yield. This solves the problem in existing devices where the vibration mechanism drives the forming mechanism back and forth, causing repeated squeezing of the formed brake pad by the upper and lower molds, which damages the brake pad's shape, leads to stress concentration, and reduces the yield.

[0017] 2. The water-cooled brake pad forming mold can move the upper mold up and down via a hydraulic rod, and the movement of the upper mold can be limited by a limit rod to prevent the upper mold from shifting position during movement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the lower mold structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the top surface structure of the demolding component of this utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the demolding component of this utility model.

[0023] In the diagram: 1. Lower mold; 11. Molding cavity; 12. Receiving groove; 13. Round hole; 2. Upper mold; 3. U-shaped base; 4. Demolding assembly; 41. Motor; 42. Threaded rod; 43. Threaded sleeve; 44. Base plate; 45. Connecting pipe; 451. Air vent; 46. Demolding plate; 47. Air pump; 48. Hose; 49. Air collection plate; 5. U-shaped plate; 6. Hydraulic rod; 7. Limiting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: As Figure 1-5 As shown: The system includes a lower mold 1, with a forming cavity 11 on its top surface. An upper mold 2 is positioned above the lower mold 1. A receiving groove 12 is formed on the outer ring of the bottom surface of the forming cavity 11, and round holes 13 are formed at the four corners of the bottom surface of the receiving groove 12. A U-shaped base 3 is fixedly installed on the bottom surface of the lower mold 1. A demolding assembly 4 is provided between the lower mold 1 and the U-shaped base 3. The demolding assembly 4 includes a motor 41 fixedly installed in the middle of the bottom surface of the U-shaped base 3. A threaded rod 42 is fixedly connected to the output end of the motor 41. The end of the threaded rod 42 away from the motor 41 is rotatably mounted on the lower mold 1 via a bearing ring. On the bottom surface of mold 1, a threaded sleeve 43 is threaded onto the outer surface of the threaded rod 42. A base plate 44 is fixedly fitted onto the outer surface of the threaded sleeve 43. Connecting pipes 45 are provided at the four corners of the top surface of the base plate 44. The connecting pipes 45 are movably fitted into the round holes 13 on the same side. A demolding template 46 is fixedly installed on the top surface of the connecting pipe 45 and is movably fitted into the receiving groove 12. The specifications of the demolding template 46 are the same as those of the receiving groove 12. A hollow air collecting plate 49 is fixedly installed on the top surface of the base plate 44. The bottom end of the connecting pipe 45 is fixedly installed on the top surface of the air collecting plate 49. The inner cavity of the air collecting plate 49 is connected to the 5th part of the U-shaped base 3. An air pump 47 is fixedly installed on one side of the bottom surface of the U-shaped base 3. The output end of the air pump 47 is connected to a hose 48 through a flange. The end of the hose 48 away from the air pump 47 is fixedly installed on the side wall of the air collecting plate 49. The hose 48 is connected to the inner cavity of the air collecting plate 49. An air outlet 451 is opened on the side of the connecting pipe 45 facing the center of the molding cavity 11. The threaded rod 42 is rotated by the motor 41, which causes the threaded sleeve 43, the base plate 44, the connecting pipe 45, the demolding plate 46 and the air collecting plate 49 to move upward. Then, the demolding plate 46 passes through the air collecting plate 49. The edge of the brake pad is pushed upward, and air is sequentially supplied to the hose 48, air collection plate 49 and connecting pipe 45 by air pump 47. Finally, the air enters the molding cavity 11 through 541. The air entering the molding cavity 11 can push the brake pad upward, thereby completing the demolding of the brake pad. This achieves the purpose of making the brake pad easy to demold. The air discharged by the demolding plate 46 and the air outlet 451 pushes the brake pad upward, which can reduce the pressure between the brake pad and the demolding plate 46, which is beneficial to protect the brake pad and improve the pass rate of the brake pad.

[0026] Example 2: Figure 1-2As shown: A U-shaped plate 5 is fixedly installed in the middle of the top surface of the lower mold 1. A hydraulic rod 6 is fixedly installed in the middle of the top surface of the U-shaped plate 5. The output end of the hydraulic rod 6 passes through the top surface of the U-shaped plate 5 and is fixedly installed on the upper mold 2. Limiting rods 7 are fixedly installed on both the left and right sides of the top surface of the upper mold 2. The limiting rods 7 are movably fitted on the top surface of the U-shaped plate 5. The upper mold 2 can be moved up and down by the hydraulic rod 6. The movement of the upper mold 2 can be limited by the limiting rods 7 to prevent the upper mold 2 from shifting position when it moves.

[0027] The working principle and usage process of this utility model: When using this water-groove brake pad molding die, the raw material is placed inside the molding cavity 11, and then the hydraulic rod 6 is activated to drive the upper mold 2 to descend and heat-press the brake pad. Then the upper mold 2 is reset, and then the motor 41 is activated to drive the threaded rod 42 to rotate, which can move the threaded sleeve 43, the base plate 44, the connecting pipe 45, the ejector plate 46 and the air collecting plate 49 upward. Then the ejector plate 46 pushes the edge of the brake pad upward. Then the air pump 47 is activated to deliver air into the hose 48. Then the air enters the interior of the connecting pipe 45 through the air collecting plate 49, and finally enters the interior of the molding cavity 11 through 541. The air entering the molding cavity 11 can push the brake pad upward, thereby completing the demolding of the brake pad. The air discharged through the air outlet 451 can increase the air circulation rate around the brake pad, thereby reducing the temperature of the brake pad.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-groove brake pad forming mold, comprising a lower mold (1), wherein a forming cavity (11) is provided on the top surface of the lower mold (1), and an upper mold (2) is provided above the lower mold (1). Its features are: The outer ring of the bottom surface of the forming cavity (11) is provided with a receiving groove (12), and the four corners of the bottom surface of the receiving groove (12) are provided with round holes (13). The bottom surface of the lower mold (1) is fixedly installed with a U-shaped base (3), and a demolding component (4) is provided between the lower mold (1) and the U-shaped base (3). The demolding assembly (4) includes a motor (41) fixedly installed in the middle of the bottom surface of the U-shaped base (3). The output end of the motor (41) is fixedly connected to a threaded rod (42). The end of the threaded rod (42) away from the motor (41) is rotatably installed on the bottom surface of the lower mold (1) through a bearing ring. The outer surface of the threaded rod (42) is threaded with a threaded sleeve (43). The outer surface of the threaded sleeve (43) is fixedly fitted with a base plate (44). The four corners of the top surface of the base plate (44) are provided with connecting pipes (45). The connecting pipes (45) are movably fitted inside the round hole (13) on the same side. The top surface of the connecting pipes (45) is fixedly installed with a demolding template (46) movably fitted inside the receiving groove (12).

2. The water-groove brake pad forming mold according to claim 1, characterized in that: The specifications of the template (46) are the same as those of the receiving groove (12). The top surface of the bottom plate (44) is fixedly installed with an internally hollow gas collecting plate (49). The bottom end of the connecting pipe (45) is fixedly installed on the top surface of the gas collecting plate (49). The connecting pipe (45) is connected to the inner cavity of the gas collecting plate (49).

3. The water-groove brake pad forming mold according to claim 2, characterized in that: An air pump (47) is fixedly installed on one side of the bottom surface of the U-shaped base (3), and the output end of the air pump (47) is connected to a hose (48) through a flange.

4. The water-groove brake pad forming mold according to claim 3, characterized in that: The end of the hose (48) away from the air pump (47) is fixedly installed on the side wall of the air collecting plate (49). The hose (48) is connected to the inner cavity of the air collecting plate (49). The top of the connecting pipe (45) is provided with an air outlet (451) on the side facing the center of the forming cavity (11).

5. The water-groove brake pad forming mold according to claim 1, characterized in that: A U-shaped plate (5) is fixedly installed in the middle of the top surface of the lower mold (1), and a hydraulic rod (6) is fixedly installed in the middle of the top surface of the U-shaped plate (5). The output end of the hydraulic rod (6) passes through the top surface of the U-shaped plate (5) and is fixedly installed with an upper mold (2).

6. The water-groove brake pad forming mold according to claim 5, characterized in that: Limiting rods (7) are fixedly installed on both the left and right sides of the top surface of the upper mold (2), and the limiting rods (7) are movably fitted on the top surface of the U-shaped plate (5).