Brake block mold

Abstract

The utility model discloses a brake block die. The brake block die comprises an upper die and a lower die, the key points of the utility model are as follows: a lower die comprises a bottom plate, two groups of guide columns, a concave die plate, two springs and a die core, the concave die plate is connected to the two groups of guide columns in a sliding manner and is provided with a cavity vertically penetrating through the concave die plate, the outer surface of the concave die plate is inwards provided with a first mounting hole, the first mounting hole is positioned on the outer side of the cavity, and a first heating pipe is arranged in the first mounting hole; the two ends of the spring abut against the female die plate and the bottom plate respectively. The upper end of the mold core is in sliding fit with the interior of the cavity, the lower end of the mold core is fixed to the bottom plate, a second mounting hole is inwards formed in the outer surface of the mold core, and a second heating pipe is arranged in the second mounting hole. The female die plate and the die core are heated through the first heating pipe and the second heating pipe correspondingly, so that the brake block die is heated evenly, the conditions of die sticking and layering of the brake block are prevented, the hot press forming quality of the brake block can be improved, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing mold technology, specifically to a brake block mold. Background Technology

[0002] Brake blocks for heavy-duty vehicle axle disc brakes are thermoformed using a mold. During thermoforming, the mold is mounted on a press and heated. Existing brake block molds include an upper mold and a lower mold located below it. The lower mold includes a base plate, a cavity, and a core. Guide posts are fixed to the base plate. The cavity is slidably connected to the guide posts and has a cavity. One end of the core mates with the cavity, and the other end is fixed to the top surface of the base plate. When the brake block mold thermoforms the brake block, molding material is added to the cavity, the mold is heated, and the press applies pressure to the molding material through the mold, thus achieving thermoforming. However, uneven heating of the aforementioned brake block mold leads to sticking and delamination of the thermoformed brake blocks, affecting the quality of the thermoforming process. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a brake block mold that is uniformly heated and has a simple structure.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] Brake block mold, including upper mold and lower mold;

[0006] The upper mold includes an upper template and a pressure plate fixed to the bottom surface of the upper template;

[0007] The lower mold is located below the upper mold and includes a base plate, two sets of guide pillars, a concave mold plate, two springs, and a mold core. The two sets of guide pillars are arranged opposite each other and fixed to the top surface of the base plate. The concave mold plate is slidably connected to the two sets of guide pillars and has a cavity extending through it vertically. The cavity is located between the two sets of guide pillars and corresponds to the pressure plate. The outer surface of the concave mold plate has a first mounting hole facing inward. The first mounting hole is located outside the cavity and has a first heating tube inside it. A spring is sleeved on one of the guide pillars and is located between the concave mold plate and the base plate. The two ends of the spring abut against the concave mold plate and the base plate, respectively. The upper end of the mold core is slidably fitted into the cavity, and the lower end of the mold core is fixed to the base plate. The outer surface of the mold core has a second mounting hole facing inward, and a second heating tube is inside the second mounting hole.

[0008] Furthermore, the outer wall of the concave template is provided with at least one first mounting hole on each of the opposite sides of the cavity, and a first heating tube is provided in each first mounting hole.

[0009] Furthermore, there are multiple cavities, which are arranged along the longitudinal direction of the brake block mold. The concave template has multiple first mounting holes that penetrate the concave template along the outer side wall of the longitudinal direction. The multiple first mounting holes are staggered with the cavities and arranged in two rows in the longitudinal direction. There are multiple mold cores, and one mold core corresponds to one cavity.

[0010] Furthermore, the mold core has a second mounting hole extending inward along the outer side wall of the brake block mold along its longitudinal direction; the second mounting hole is located below the concave template and penetrates the mold core; or,

[0011] The bottom surface of the mold core has a second mounting hole facing upwards.

[0012] Furthermore, the pressure plate has multiple upper mounting holes extending inward along the outer side wall of the brake block mold along the longitudinal direction. The multiple upper mounting holes are distributed along the longitudinal direction, and each upper mounting hole is provided with an upper heating tube.

[0013] Furthermore, the bottom surface of the upper template is provided with a guide sleeve on each of the opposite sides of the pressure plate along the transverse direction of the brake block mold, and a guide post corresponds to a guide sleeve. The upper end of the guide post passes upward through the top surface of the concave template and slides with the guide sleeve.

[0014] Furthermore, the concave template extends outward from the two outer side walls of the brake block mold in the transverse direction to form a connecting part. The two connecting parts are slidably connected to the two sets of guide posts. The spring is located between the bottom surface of the connecting part and the top surface of the base plate, and the upper end of the spring abuts against the bottom surface of the connecting part, and the lower end of the spring abuts against the top surface of the base plate.

[0015] Furthermore, the width of the first heating tube is greater than or equal to the width of the cavity, and the length of the second heating tube is greater than or equal to the width of the mold core.

[0016] The brake block mold of this utility model has a first heating tube in the first mounting hole of the concave template and a second heating tube in the second mounting hole of the mold core. When the brake block is hot-pressed, the concave template and the mold core are heated by the first heating tube and the second heating tube respectively, so that the brake block mold is heated evenly, preventing the brake block from sticking or delaminating. This can improve the hot-pressing quality of the brake block and has a simple structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the mold opening state of the brake block mold according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A partial exploded view. Detailed Implementation

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 2 As shown, this utility model embodiment provides a brake block mold, which is installed on a press (not shown) for hot pressing to form brake blocks (not shown) of heavy vehicle disc brakes. The brake block mold includes an upper mold 1 and a lower mold 2.

[0021] The upper mold 1 includes an upper template 11 and a pressure plate 12 fixed to the bottom surface of the upper template 11 by bolts. Specifically, the pressure plate 12 is used to press the molding material of the brake block and is fixed to the bottom surface of the upper template 11 by bolts. The pressure plate 12 has multiple upper mounting holes 121 extending inward from the outer wall along the longitudinal direction X of the brake block mold. These upper mounting holes 121 are evenly distributed along the longitudinal direction X. In this embodiment, there are three upper mounting holes 121, and each upper mounting hole 121 is provided with an upper heating tube 122. The upper heating tube 122 is used to heat the upper mold 1 and is a resistance heating tube, which can further ensure uniform heating of the brake block mold and improve the hot pressing quality of the brake block. To improve positioning accuracy, a guide sleeve 123 is also provided on each of the opposite sides of the pressure plate 12 along the transverse direction Y of the brake block mold on the bottom surface of the upper template 11.

[0022] The lower mold 2 is located below the upper mold 1 and includes a base plate 21, two sets of guide pillars 22, a concave template 23, two springs 24, and a mold core 25. The two sets of guide pillars 22 are arranged opposite each other and fixed to the top surface of the base plate 21, extending in the vertical direction. In this embodiment, each set of guide pillars 22 has two guide pillars arranged side by side. Of course, in other embodiments, each set of guide pillars 22 may have only one guide pillar 22. In this case, the two guide pillars 22 are respectively arranged at opposite corners of the base plate 21. Specifically, one guide pillar 22 corresponds to one guide sleeve 123. The upper end of the guide pillar 22 passes upward through the top surface of the concave template 23 and slides with the guide sleeve 123, which simplifies the structure.

[0023] The concave template 23 is slidably connected to two sets of guide posts 22 and has a cavity 231 extending through it vertically. The cavity 231 is located between the two sets of guide posts 22 and corresponds to the pressure plate 12. The cavity 231 is used to fill the molding material. The outer surface of the concave template 23 has a first mounting hole 232 opening inward. The first mounting hole 232 is located outside the cavity 231 and has a first heating tube 26 inside it. A spring 24 is sleeved on a guide post 22 and is located between the concave template 23 and the base plate 21. The two ends of the spring 24 abut against the concave template 23 and the base plate 21 respectively, so that the spring 24 can return to its original position and support the concave template 23. The upper end of the mold core 25 is slidably fitted into the cavity 231 to form the bottom of the cavity 231. The lower end of the mold core 25 is fixed to the base plate 21 by screws. The outer surface of the mold core 25 is provided with a second mounting hole 251. A second heating tube 27 is provided in the second mounting hole 251. Both the second heating tube 27 and the first heating tube 26 are resistance heating tubes.

[0024] By setting a first heating tube 26 in the first mounting hole 232 and a second heating tube 27 in the second mounting hole 251, when the brake block is hot-pressed, the first heating tube 26 and the second heating tube 27 heat the concave template 23 and the mold core 25 respectively, thereby making the brake block mold heat evenly, preventing the brake block from sticking to the mold or delaminating, improving the hot-pressing quality of the brake block, and the structure is simple.

[0025] Specifically, the outer wall of the concave template 23 has at least one first mounting hole 232 on each of the opposite sides of the cavity 231, and each first mounting hole 232 contains a first heating tube 26. More specifically, there are multiple cavities 231, which are arranged along the longitudinal direction X of the brake block mold, and the longitudinal direction X is perpendicular to the transverse direction Y. The outer wall of the concave template 23 along the longitudinal direction X has multiple first mounting holes 232 penetrating the concave template 23. The multiple first mounting holes 232 are staggered with the cavities 231 and arranged in two rows along the longitudinal direction X. Each first mounting hole 232 contains a first heating tube 26. The width of the first heating tube 26 is greater than or equal to the width of the cavity 231, which can further ensure that the brake block mold is heated evenly. In this embodiment, there are two cavities 231, which can improve the hot pressing efficiency. There are three first mounting holes 232 in each row.

[0026] To save installation space and ensure the connection strength of the concave template 23, in this embodiment, the two outer side walls of the concave template 23 extend outward in a single piece to form a connecting part 233 along the transverse direction Y. The two connecting parts 233 are slidably connected to the two sets of guide posts 22 respectively. The spring 24 is located between the bottom surface of the connecting part 233 and the top surface of the base plate 21, with the upper end of the spring 24 abutting against the bottom surface of the connecting part 233 and the lower end of the spring 24 abutting against the top surface of the base plate 21. When the brake block is thermoformed, the upper mold 1 moves downward under the drive of the press, causing the pressure plate 12 to press down on the forming material. During this process, the concave template 23 slides down along the guide post 22 under the drive of the pressure plate 12 and compresses the spring 24. When the brake block is hot-pressed and formed, the mold is opened. When the brake block is demolded, two demolding pads are placed at both ends of the top surface of the concave template 23. The press drives the upper mold 1 to move downward, so that the pressure plate 12 presses the concave template 23 downward through the demolding pads. During the downward sliding of the concave template 23, the spring 24 is compressed, and the brake block in the cavity 231 gradually protrudes from the top surface of the concave template 23 so that the brake block can be smoothly removed from the cavity 231.

[0027] Accordingly, there are two mold cores 25, each corresponding to a cavity 231. Each mold core 25 has a second mounting hole 251 extending inward from the outer side wall along the longitudinal direction X of the brake block mold. The second mounting hole 251 is located below the concave template 23 and penetrates the mold core 25. A second heating tube is installed in each second mounting hole 251. Of course, in other embodiments, a second mounting hole 251 can also be formed on the bottom surface of the mold core 25, depending on actual needs. More specifically, the length of the second heating tube 27 is greater than or equal to the width of the mold core 25, which can further ensure uniform heating of the brake block mold.

[0028] The brake block mold of this utility model has a first heating tube in the first mounting hole of the concave template and a second heating tube in the second mounting hole of the mold core. When the brake block is hot-pressed, the concave template and the mold core are heated by the first heating tube and the second heating tube respectively, so that the brake block mold is heated evenly, preventing the brake block from sticking or delaminating. This can improve the hot-pressing quality of the brake block and has a simple structure.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A brake block mold, characterized in that, Includes upper mold and lower mold; The upper mold includes an upper template and a pressure plate fixed to the bottom surface of the upper template; The lower mold is located below the upper mold and includes a base plate, two sets of guide pillars, a concave mold plate, two springs, and a mold core. The two sets of guide pillars are arranged opposite each other and fixed to the top surface of the base plate. The concave mold plate is slidably connected to the two sets of guide pillars and has a cavity extending through it vertically. The cavity is located between the two sets of guide pillars and corresponds to the pressure plate. The outer surface of the concave mold plate has a first mounting hole facing inward. The first mounting hole is located outside the cavity and has a first heating tube inside it. A spring is sleeved on one of the guide pillars and is located between the concave mold plate and the base plate. The two ends of the spring abut against the concave mold plate and the base plate, respectively. The upper end of the mold core is slidably fitted into the cavity, and the lower end of the mold core is fixed to the base plate. The outer surface of the mold core has a second mounting hole facing inward, and a second heating tube is inside the second mounting hole.

2. The brake block mold as described in claim 1, characterized in that, The outer wall of the concave template is provided with at least one first mounting hole on each of the opposite sides of the cavity, and a first heating tube is provided in each first mounting hole.

3. The brake block mold as described in claim 1, characterized in that, The mold has multiple cavities arranged along the longitudinal direction of the brake block mold. The concave template has multiple first mounting holes that penetrate the concave template along the outer side wall of the longitudinal direction. The multiple first mounting holes are staggered with the cavities and arranged in two rows along the longitudinal direction. The mold core has multiple cores, and one core corresponds to one cavity.

4. The brake block mold as described in claim 1, characterized in that, The mold core has a second mounting hole extending inward along the outer side wall of the brake block mold along its longitudinal direction. The second mounting hole is located below the concave mold plate and penetrates the mold core; or, The bottom surface of the mold core has a second mounting hole facing upwards.

5. The brake block mold as described in claim 1, characterized in that, The pressure plate has multiple upper mounting holes extending inward along the outer wall of the brake block mold along its longitudinal direction. The multiple upper mounting holes are distributed along the longitudinal direction, and each upper mounting hole is provided with an upper heating tube.

6. The brake block mold as described in claim 1, characterized in that, The bottom surface of the upper template is provided with a guide sleeve on each of the opposite sides of the pressure plate along the transverse direction of the brake block mold. A guide post corresponds to a guide sleeve, and the upper end of the guide post passes upward through the top surface of the concave template and slides with the guide sleeve.

7. The brake block mold as described in claim 1, characterized in that, The concave template extends outward from the two outer side walls of the brake block mold in the transverse direction to form a connecting part. The two connecting parts are slidably connected to the two sets of guide posts respectively. The spring is located between the bottom surface of the connecting part and the top surface of the base plate, and the upper end of the spring abuts against the bottom surface of the connecting part, and the lower end of the spring abuts against the top surface of the base plate.

8. The brake block mold as described in claim 1, characterized in that, The width of the first heating tube is greater than or equal to the width of the cavity, and the length of the second heating tube is greater than or equal to the width of the mold core.

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