A preheating device for brake pad hot-pressing mold

Abstract

The utility model discloses a kind of brake pad hot-pressing mould preheating device, including fixing frame, preheating box is fixedly arranged on the fixing frame, preheating cavity is equipped in the preheating box, the opposite side of the preheating box is hingedly equipped with sealing plate, for the sealing of preheating cavity, push plate is slidably arranged on the fixing frame, one side of the preheating box is provided with mounting bracket, pull rod is slidably arranged in the mounting bracket, pull rod is fixedly provided with material taking plate on the side close to preheating box.In the utility model, hot-pressing mould is placed on fixing frame, hot-pressing mould is located between push plate and preheating box, after the sealing plate of preheating box is opened, push plate pushes hot-pressing mould to enter preheating cavity and preheats, after preheating is completed, sealing plate is opened, material taking plate is extended into preheating cavity and hot-pressing mould is pulled out from preheating box, and the preheating of hot-pressing mould can be completed, production can be directly carried out after replacing hot-pressing mould, without waiting for heating, and production efficiency can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of preheating device technology, and in particular to a preheating device for brake pad hot pressing mold. Background Technology

[0002] In a car's braking system, brake pads are the most critical safety component, and the effectiveness of braking depends entirely on them. Brake pads generally consist of a steel plate, an adhesive heat-insulating layer, and friction blocks. The heat-insulating layer is made of a non-heat-conducting material for heat insulation. The friction blocks are composed of friction materials and adhesives, and during braking, they are pressed against the brake disc and brake drum to generate friction, thereby achieving the purpose of vehicle deceleration and braking.

[0003] Brake pads are generally manufactured using a hot pressing process. A hot pressing mold is placed on a press, and friction material is poured into the mold. The press then extrudes the friction material into shape. During the hot pressing process, the mold needs to be continuously heated to melt the friction material. Since brake pads come in various specifications and models, changing the brake pad model requires replacing the hot pressing mold. However, after replacement, the mold needs to be reheated to a certain temperature. The temperature of the mold needs to rise from room temperature to a high temperature after replacement, which takes time. During this process, brake pad production cannot proceed, leading to production delays and reduced efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a preheating device for brake pad hot pressing molds, which addresses the shortcomings of the prior art.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A preheating device for a brake pad hot pressing mold includes a fixed frame, a preheating box fixedly mounted on the fixed frame, a preheating cavity inside the preheating box, sealing plates hinged to opposite sides of the preheating box for sealing the preheating cavity, a push plate slidably mounted on the fixed frame, an mounting frame mounted on one side of the preheating box, a pull rod slidably mounted on the mounting frame, and a material picking plate fixedly mounted on the side of the pull rod near the preheating box.

[0007] Preferably, a support plate is fixedly mounted on the fixed frame, the support plate is located on one side of the preheating box, and multiple rollers are rotatably mounted on the support plate, the rollers making rolling contact with the hot pressing mold.

[0008] Preferably, the fixing frame is provided with a sliding groove, and the push plate is slidably disposed in the sliding groove.

[0009] Preferably, a top block is fixedly provided at the top of the push plate, and the top block is located on the side of the push plate near the preheating box.

[0010] Preferably, a feeding cylinder is fixedly installed at the bottom of the fixed frame, and the piston rod of the feeding cylinder is fixedly connected to the push plate to drive the push plate to slide.

[0011] Preferably, a slide rail is fixedly provided at the bottom of the fixing frame, and the push plate is slidably disposed on the slide rail.

[0012] Preferably, a discharge cylinder is fixedly installed on the mounting frame, and the piston rod of the discharge cylinder is fixedly connected to the material receiving plate.

[0013] Preferably, a baffle is fixedly installed on the fixing frame, and the baffle and the push plate are located on the same side of the preheating box.

[0014] Preferably, a conveyor is provided on one side of the fixed frame for conveying the hot pressing mold, and the mounting frame is fixedly mounted on the conveyor.

[0015] The beneficial effects of adopting the above technical solution are as follows:

[0016] In this invention, before replacing the hot press mold, the hot press mold is placed on a fixed frame. The hot press mold is pushed into the preheating chamber by sliding the push plate on the fixed frame to preheat the hot press mold. After preheating, the hot press mold is taken out by the material taking plate, so that the hot press mold has a certain temperature. After the hot press mold is replaced, production can be carried out directly without waiting for the temperature to rise, which can greatly improve production efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the installation state of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the installation state of this utility model from another angle.

[0020] In the diagram: 1 is the fixed frame, 2 is the preheating box, 3 is the sealing plate, 4 is the push plate, 5 is the mounting frame, 6 is the tie rod, 7 is the material picking plate, 8 is the support plate, 9 is the roller, 10 is the sliding groove, 11 is the top block, 12 is the feeding cylinder, 13 is the slide rail, 14 is the discharging cylinder, 15 is the baffle, 16 is the conveyor, and 17 is the receiving plate. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1 to 3 As shown, a preheating device for a brake pad hot pressing mold includes a fixed frame 1, on which a preheating box 2 is fixedly mounted. Multiple electric heating rods are inserted into the preheating box 2, located at the top and bottom of the box, allowing simultaneous heating from both above and below. The preheating box 2 is located at the top of the fixed frame 1. Inlets and outlets are located on opposite sides of the preheating box 2. A preheating cavity is provided inside the preheating box 2, connected to the inlets and outlets. Sealing plates 3 are hinged to opposite sides of the preheating box 2. 3 are respectively set at the inlet and outlet of the preheating box 2 to seal the preheating cavity. A push plate 4 is slidably set on the fixed frame 1 to push the hot pressing mold into the preheating cavity. The push plate 4 is located on the inlet side of the preheating box 2. A mounting frame 5 is set on one side of the preheating box 2. The mounting frame 5 is located on the outlet side of the preheating box 2. A pull rod 6 is slidably set on the mounting frame 5. A material picking plate 7 is fixedly set on the side of the pull rod 6 near the preheating box 2. The material picking plate 7 is an electromagnet. When energized, it can pick up the hot pressing mold. When de-energized, it can separate the two.

[0025] In this invention, before replacing the hot pressing mold, according to the predetermined replacement time, the hot pressing mold to be replaced can be taken out in advance and placed on the fixed frame 1. The hot pressing mold is located on one side of the inlet of the preheating box 2. At this time, the sealing plate 3 on the inlet side of the preheating box 2 opens, and the push plate 4 pushes the hot pressing mold from the inlet of the preheating box 2 into the preheating chamber. Then the push plate 4 resets, and the sealing plate 3 closes to seal the preheating chamber. The electric heating rod on the preheating box 2 heats up the hot pressing mold. When the temperature of the hot pressing mold reaches the preheating temperature, the sealing plate 3 on the outlet side of the preheating box 2 opens, and the pull rod 6 slides on the mounting frame 5 to allow the material picking plate 7 to enter the preheating chamber. The material picking plate 7 is energized to pick up the hot pressing mold. Then the pull rod 6 slides backward to pull the hot pressing mold out of the preheating chamber. At this time, the preheated hot pressing mold can be replaced. After the replacement is completed, production can be started directly, reducing the heating waiting time and improving production efficiency.

[0026] It should be noted that the fixed frame 1 is provided with an installation part and a push-in part. The preheating box 2 is fixedly installed in the installation part, the push-in part is located on the inlet side of the preheating box 2, and the push plate 4 is slidably installed in the push-in part of the fixed frame 1. Before sending the hot pressing mold into the preheating box 2, the hot pressing mold is first placed in the push-in part of the fixed frame 1. At this time, the hot pressing mold is located between the push plate 4 and the preheating box 2. Then the push plate 4 slides in the push-in part of the fixed frame 1, which can push the hot pressing mold into the preheating box 2.

[0027] Furthermore, the top of the sealing plate 3 is hinged to the preheating box 2, and a lifting cylinder is provided on the side wall of the preheating box 2. The cylinder barrel of the lifting cylinder is hinged to the side wall of the preheating box 2, and the piston rod of the lifting cylinder is hinged to the sealing plate 6. By extending or retracting the piston rod of the lifting cylinder, the sealing plate 3 can be rotated on the preheating box 2, thereby realizing the opening and closing of the sealing plate 3.

[0028] Furthermore, a support plate 8 is fixedly installed on the fixed frame 1. There are two support plates 8, which are arranged in parallel. The support plates 8 are located on one side of the preheating box 2. Multiple rollers 9 are rotatably installed on the support plates 8. The rollers 9 roll in contact with the hot pressing mold. The height of the highest point of the roller 9 is at the same level as the bottom surface of the preheating cavity, or the height of the highest point of the roller 9 is higher than the bottom surface of the preheating cavity. Before the hot pressing mold is sent into the preheating box 2, the hot pressing mold can be placed on the rollers 9 on the top of the support plate 8. When the push plate 4 pushes the hot pressing mold into the preheating box 2, the bottom surface of the hot pressing mold rolls in contact with the rollers 9, which can reduce frictional resistance and make the hot pressing mold more quickly and smoothly sent into the preheating box 2.

[0029] Furthermore, a sliding groove 10 is provided on the fixed frame 1. The sliding groove 10 is located in the push-in part of the fixed frame 1 and is located between the two support plates 8. The push plate 4 is slidably disposed in the sliding groove 10. A feeding cylinder 12 is fixedly disposed at the bottom of the fixed frame 1. The upper part of the push plate 4 is located above the fixed frame 1, and the lower part of the push plate 4 extends through the sliding groove 10 to the bottom of the fixed frame 1 and is fixedly connected to the piston rod of the feeding cylinder 12. The extension or retraction of the piston rod of the feeding cylinder 12 can drive the push plate 4 to slide, thereby pushing the hot pressing mold into the preheating box 2.

[0030] Furthermore, a top block 11 is fixedly installed at the top of the push plate 4. The top block 11 is horizontally positioned and located on the side of the push plate 4 near the preheating box 2. The side of the push plate 4 abuts against the side wall of the hot pressing mold. When the push plate 4 pushes the hot pressing mold into the preheating box 2, when the push plate 4 abuts against the side wall of the preheating box 2, the top block 11 can enter the preheating cavity of the preheating box 2, so that the hot pressing mold can continue to be pushed into the interior of the preheating box 2 a certain distance, avoiding the side wall of the hot pressing mold from sticking to the side wall of the sealing plate 3, and improving the residual heat effect.

[0031] Furthermore, a slide rail 13 is fixedly installed at the bottom of the fixed frame 1, and the feeding cylinder 12 can drive the push plate 4 to slide along the slide rail 13, making the push plate 4 slide more smoothly.

[0032] Furthermore, a discharge cylinder 14 is fixedly installed on the mounting frame 5. The cylinder barrel of the discharge cylinder 14 is fixedly connected to the mounting frame 5, and the piston rod of the discharge cylinder 14 is fixedly connected to the material-taking plate 7. The extension and retraction of the piston rod of the discharge cylinder 14 can drive the material-taking plate 7 to extend and retract. When it is necessary to remove the hot pressing mold from the preheating box 2, the sealing plate 3 located on the outlet side of the preheating box 2 opens, the piston rod of the discharge cylinder 14 extends, and drives the material-taking plate 7 to move towards the side of the hot pressing mold until the material-taking plate 7 abuts against the hot pressing mold. At this time, the material-taking plate 7 is energized, and the hot pressing mold can be picked up on the material-taking plate 7. Then the piston rod of the discharge cylinder 14 retracts, and the material-taking plate 7 can remove the hot pressing mold from the preheating box 2. Finally, the power to the material-taking plate 7 is turned off, so that the material-taking plate 7 and the hot pressing mold can be separated.

[0033] It should be noted that the pull rod 6 is arranged parallel to the discharge cylinder 14 and is slidably mounted on the mounting bracket 5. When the piston rod of the discharge cylinder 14 drives the material taking plate 7 to move, the pull rod 6 can guide the material taking plate 7 to prevent the material taking plate 7 from rotating.

[0034] Furthermore, a baffle 15 is fixedly installed on the fixed frame 1. The baffle 15 is arranged parallel to the support plate 8. The baffle 15 is located on one side of the inlet of the preheating box 2. The position of the baffle 15 corresponds to the position of the preheating chamber. After the hot pressing mold is placed on the support plate 8, one side of the hot pressing mold abuts against the baffle 15. The baffle 15 can limit the hot pressing mold. At this time, when the push plate 4 pushes the hot pressing mold into the preheating box 2, it can prevent the hot pressing mold from colliding with the preheating box 2.

[0035] Furthermore, a conveyor 16 is installed on one side of the fixed frame 1. The conveyor 16 is located on the side of the outlet of the preheating box 2 and is used to transport the hot pressing mold. The mounting frame 5 is fixedly installed on the frame of the conveyor 16. A chain is rotatably installed on the frame of the conveyor 16, and a receiving plate 17 is slidably installed. The receiving plate 17 is fixedly connected to the chain. When the conveyor 16 rotates, the chain can drive the receiving plate 17 to slide. The receiving plate 17 is located between the mounting frame 5 and the preheating box 2. During this process, the upper surface of the receiving plate 17 is at the same level as the bottom surface of the preheating chamber, or the upper surface of the receiving plate 17 is lower than the bottom surface of the preheating chamber. After the hot pressing mold is preheated, the chain drives the receiving plate 17 to slide to the outlet of the preheating box 2. After the sealing plate 3 is opened, the taking plate 7 pulls the hot pressing mold out of the preheating box 2 and it can fall onto the receiving plate 17. Then, the chain drives the receiving plate 17 to move the hot pressing mold to the press that needs to be replaced, so that the hot pressing mold can be replaced.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these 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.

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