Brake pad heat treatment device

Abstract

The utility model discloses a brake pad heat treatment device which comprises a treatment box, a heating mechanism is arranged at the bottom of the treatment box, a plurality of placing frames are rotatably arranged above the heating mechanism at intervals, the interior of each placing frame is divided into a plurality of limiting grooves through partition plates, and the limiting grooves are arranged in the processing box. The two ends of each limiting groove are opened, and limiting cover plates are arranged on the two opposite sides of the containing frame correspondingly so as to cover the openings in the two ends of each limiting groove. When the device is used, the problems that in the prior art, when a heat treatment drying oven is used, a brake pad to be subjected to heat treatment cannot be separated and limited, a placing box rotates in the heat treatment process, the brake pad can be overlapped together, and therefore the brake pad is heated unevenly, and the heating effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pad manufacturing, and specifically, to a heat treatment device for brake pads. Background Art

[0002] A brake pad refers to a friction material fixed on a brake drum or a brake disc that rotates with a vehicle wheel. The friction lining and friction pad therein bear external pressure and generate a frictional effect to achieve the purpose of vehicle deceleration. In the processing of automotive brake pads, heat treatment is the key in its processing.

[0003] After retrieval, Chinese Patent Application CN215440593U discloses a heat treatment oven for brake pads. By heating simultaneously with heating wires and heating plates, the heating efficiency is improved. The base is driven to rotate by a motor, and then the placement box is driven to rotate, making the brake pads heat more evenly.

[0004] However, when implementing the above technical solution, there are still the following technical problems: when this heat treatment oven is in use, it cannot fix and limit the brake pads to be heat-treated. During the heat treatment process, when the placement box rotates, the brake pads will overlap each other, resulting in uneven heating of the brake pads and affecting the heating effect.

[0005] Therefore, providing a heat treatment device for brake pads that can separate and limit the brake pads during use, prevent the brake pads from sliding or overlapping during the heating process, ensure the heating quality, and improve the uniformity and efficiency of brake pad heating is an urgent problem to be solved by the utility model. Summary of the Utility Model

[0006] Aiming at the above technical problems, the purpose of the utility model is to overcome the problem that the heat treatment oven in the prior art cannot separate and limit the brake pads to be heat-treated during use. During the heat treatment process, when the placement box rotates, the brake pads will overlap each other, resulting in uneven heating of the brake pads and affecting the heating effect. Thus, a heat treatment device for brake pads that can fix and limit the brake pads during use, prevent the brake pads from sliding or overlapping during the heating process, ensure the heating quality, and improve the uniformity and efficiency of brake pad heating is provided.

[0007] To achieve the above purpose, the utility model provides a heat treatment device for brake pads. The device includes: a processing box, a heating mechanism is arranged at the bottom of the processing box, and a plurality of placement racks are arranged above the heating mechanism at intervals and rotatably. Each placement rack is internally divided into a plurality of limiting grooves by partition plates. Both ends of each limiting groove are respectively arranged to be open, and limiting cover plates are respectively arranged on the opposite sides of the placement rack to cover the open ends of both ends of each limiting groove.

[0008] Preferably, a limiting mechanism for locking each limiting cover plate is respectively arranged on the placing rack; wherein,

[0009] The limiting mechanism includes: a fixed plug-in and a locking piece; fixed plug-ins are respectively arranged on opposite end faces of each limiting cover plate, a locking piece corresponding to each fixed plug-in is arranged on the placing rack, and the locking piece can be locked and connected with the corresponding fixed plug-in.

[0010] Preferably, the fixed plug-in includes: a fixed block and a ratchet bar; the ratchet bar is arranged on the limiting cover plate through the fixed block.

[0011] Preferably, the locking piece includes: a plug-in block, a ratchet pawl, a stop block, a sliding rod, a first spring and a limiting plate; wherein,

[0012] The plug-in block is arranged on the placing rack, and the ratchet bar can be inserted into the plug-in block. The ratchet pawl is rotatably arranged in the plug-in block through a rotating shaft and meshes with the ratchet bar. The stop block is fixedly arranged on the ratchet pawl and is arranged in parallel with the plug-in block. The sliding rod slidably penetrates through the top end of the plug-in block, and its bottom surface contacts the stop block. The limiting plate is fixedly arranged at the top end of the sliding rod. The first spring is sleeved on the sliding rod, and its two ends are respectively abutted against the upper surface of the plug-in block and the bottom surface of the limiting plate.

[0013] Preferably, two sides of the placing rack adjacent to the limiting cover plate are respectively rotatably arranged inside the processing box through horizontally and coaxially arranged rotating shafts.

[0014] Preferably, a driving mechanism for driving all the placing racks to rotate is arranged on the outer side of the processing box; wherein,

[0015] The driving machine includes: a first motor and a transmission belt; a part of the rotating shaft on the same side of each placing rack extends out of the processing box, and adjacent rotating shafts are connected by a transmission belt. The output shaft of the first motor is coaxially connected with one of the rotating shafts through a coupling.

[0016] Preferably, anti-slip strips are fixedly arranged on one side of the limiting cover plate close to the placing rack, and plug-in grooves for inserting the anti-slip strips are arranged on the placing rack.

[0017] Preferably, the heating mechanism includes: a hot air blower, an air outlet pipe and an air inlet pipe; wherein,

[0018] The hot air blower is arranged in parallel with the processing box. The output end of the hot air blower is fixedly connected with one end of the air outlet pipe. The other end of the air outlet pipe is communicated with the inside of the processing box. One end of the air inlet pipe is communicated with the processing box, and the other end is fixedly connected with the input end of the hot air blower.

[0019] Preferably, the heating mechanism further includes: a second motor, an air storage box, a rotating disc and a nozzle; wherein,

[0020] The air storage box is fixedly arranged at the inner bottom of the treatment box and communicated with one end of the air outlet pipe. The rotating disc is rotatably arranged on the air storage box through a bearing. A plurality of spray heads are equidistantly arranged along the circumference of the air storage box. The second motor is fixedly arranged on the bottom surface of the treatment box, and the output end of the second motor is in transmission connection with the rotating shaft of the rotating disc.

[0021] Preferably, an opening communicating with the inside is formed on the side surface of the treatment box, and a sealing door capable of covering the opening is hinged at the edge of the opening. A handle and a transparent window are further arranged on the sealing door.

[0022] According to the above technical solution, the beneficial effect of a brake pad heat treatment device provided by the present utility model during use is as follows: during use, place the brake pads in the limiting grooves on the placement rack, and limit the brake pads through the limiting cover plate to prevent the brake pads from sliding or overlapping during the heating process. Then start the heating mechanism to uniformly heat the brake pads placed in the limiting grooves. At the same time, the rotatable setting of the placement rack can help the hot air flow better between the brake pads, improving the heating efficiency. After heating is completed, turn off the heating mechanism, open the treatment box, and take out the treated brake pads, achieving the purpose of ensuring the stable position of the brake pads during the heating process and preventing overlapping from affecting the heating effect.

[0023] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part; moreover, the parts not involved in the present utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and are used to explain the present utility model together with the following specific implementation manners, but do not constitute a limitation to the present utility model. In the drawings:

[0025] Figure 1 is a schematic perspective structure diagram of a brake pad heat treatment device provided in a preferred implementation manner Figure 1 ;

[0026] Figure 2 is a schematic perspective structure diagram of a brake pad heat treatment device provided in a preferred implementation manner Figure 2 ;

[0027] Figure 3 is a schematic diagram of the internal structure of the treatment box of a brake pad heat treatment device provided in a preferred implementation manner;

[0028] Figure 4 is a sectional view of a brake pad heat treatment device provided in a preferred implementation manner;

[0029] Figure 5 Partial three-dimensional structure schematic of the limiting mechanism of the brake pad heat treatment device provided in a preferred embodiment Figure 1 ;

[0030] Figure 6 Plan view of the placement rack of the brake pad heat treatment device provided in a preferred embodiment;

[0031] Figure 7 is Figure 6 Cross-sectional view taken along line A-A in

[0032] Figure 8 Partial three-dimensional structure schematic of the limiting mechanism of the brake pad heat treatment device provided in a preferred embodiment Figure 2 ;

[0033] Figure 9 Enlarged three-dimensional structure view of the limiting part of the brake pad heat treatment device provided in a preferred embodiment.

[0034] Explanation of reference numerals

[0035] 100, processing box; 101, sealing door; 102, handle; 103, transparent window; 104, placement rack; 105, limiting groove; 106, first motor; 107, transmission belt; 108, heating tube; 200, limiting mechanism; 201, limiting cover plate; 202, fixing block; 203, ratchet bar; 204, insertion block; 205, ratchet pawl; 206, stop block; 207, slide bar; 208, first spring; 209, limiting plate; 210, limiting hole; 211, limiting insertion block; 212, second spring; 215, sliding groove; 213, insertion groove; 214, anti-slip strip; 300, heating mechanism; 301, hot air blower; 302, air outlet pipe; 303, air inlet pipe; 304, second motor; 305, air storage box; 306, rotating disc; 307, spray head. Detailed implementation manners

[0036] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0037] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower, inner, outer" included in the terms only represent the orientation of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation to the terms.

[0038] Embodiment 1:

[0039] Refer to Figures 1 - 4As shown in the figure, a heat treatment device for brake pads, the device comprising: a processing box 100, a heating mechanism 300 is provided at the bottom of the processing box 100, and a plurality of placing racks 104 are arranged above the heating mechanism 300 at intervals and rotatably. Each placing rack 104 is internally partitioned by a partition into a plurality of limiting slots 105, and both ends of each limiting slot 105 are respectively open. Limiting cover plates 201 are respectively arranged on opposite sides of the placing rack 104 to cover the open ends of each limiting slot 105.

[0040] In the above solution, the length of the processing box 100 is greater than the length of two placing racks 104. During use, the brake pads are placed in the limiting slots 105 on the placing racks 104, and the brake pads are limited by the limiting cover plates 201 to prevent the brake pads from sliding or overlapping during the heating process. Then, the heating mechanism 300 is started to uniformly heat the brake pads placed in the limiting slots 105. At the same time, the rotatable setting of the placing rack 104 can help the hot air flow better between the brake pads, improving the heating efficiency. After the heating is completed, the heating mechanism 300 is turned off, the processing box 100 is opened, and the processed brake pads are taken out, achieving the purpose of ensuring the stable position of the brake pads during the heating process and preventing overlapping from affecting the heating effect.

[0041] Refer to Figures 3 - 5 As shown in the figure, a limiting mechanism 200 for locking each limiting cover plate 201 is respectively arranged on the placing rack 104; wherein, the limiting mechanism 200 comprises: a fixed plug-in and a locking member; fixed plug-ins are respectively arranged on opposite end faces of each limiting cover plate 201, and locking members corresponding to each fixed plug-in are arranged on the placing rack 104, and the locking members can be locked and connected with the corresponding fixed plug-ins.

[0042] In the above solution, after the brake pads are placed into the limiting slots 105, the limiting cover plates 201 are placed at the open ends of the placing rack 104, and the limiting cover plates 201 are limited and locked by the limiting mechanism 200 to prevent the rotation of the placing rack 104 during the heating process from causing the limiting cover plates 201 to fall off the placing rack 104, thereby causing the brake pads to fall into the limiting slots 105 and affecting the heating effect.

[0043] Refer to Figures 5 - 7As shown, the fixed plug-in includes: a fixed block 202 and a ratchet bar 203; the ratchet bar 203 is arranged on the limit cover plate 201 through the fixed block 202, and the locking member includes: a plug-in block 204, a ratchet pawl 205, a stop block 206, a slide bar 207, a first spring 208 and a limit plate 209; wherein, the plug-in block 204 is arranged on the placement rack 104, and the ratchet bar 203 can be inserted into the plug-in block 204, the ratchet pawl 205 is rotatably arranged in the plug-in block 204 through a rotating shaft and meshes with the ratchet bar 203, the stop block 206 is fixedly arranged on the ratchet pawl 205 and is arranged parallel to the plug-in block 204, the slide bar 207 slidably penetrates through the top end of the plug-in block 204, and its bottom surface contacts the stop block 206, the limit plate 209 is fixedly arranged at the top end of the slide bar 207, and the first spring 208 is sleeved on the slide bar 207 and its two ends are respectively abutted against the upper surface of the plug-in block 204 and the bottom surface of the limit plate 209.

[0044] In the above solution, a torsion spring is arranged in the ratchet pawl 205 to ensure the meshing of the ratchet pawl 205 and the ratchet bar 203. After the brake pad is placed into the limit groove 105, the limit cover plate 201 is placed at the open end of the placement rack 104. The ratchet bar 203 is inserted into the plug-in block 204, and the ratchet pawl 205 automatically meshes with the ratchet bar 203 to lock the ratchet bar 203, so that the ratchet bar 203 cannot be pulled out of the plug-in block 204, thereby ensuring that the limit cover plate 201 is fixedly installed at the open end of the limit cover plate 201 and preventing the limit cover plate 201 from falling off during the heating process. When disassembly is required, the limit plate 209 is pressed downward to drive the slide bar 207 to slide into the plug-in block 204, thereby squeezing the stop block 206 downward, driving the stop block 206 to move downward and driving the ratchet pawl 205 on the other side to rotate upward around the rotating shaft, so that the ratchet pawl 205 is disengaged from the ratchet bar 203, realizing the convenient and quick installation and disassembly of the limit cover plate 201.

[0045] Refer to Figures 1 - 4 As shown, the two sides of the placement rack 104 adjacent to the limit cover plate 201 are respectively rotatably arranged on the inner side of the processing box 100 through horizontally and coaxially arranged rotating shafts.

[0046] In the above solution, the placement rack 104 rotates in the horizontal plane direction, which can help the hot air flow better between the brake pads to achieve a more uniform heating effect and improve the heating efficiency.

[0047] Refer to Figures 1 - 3As shown, a driving mechanism for driving all the placement racks 104 to rotate is provided on the outer side of the processing box 100; wherein, the driving machine includes: a first motor 106 and a transmission belt 107; a part of the rotating shafts on the same side of each placement rack 104 extends out of the processing box 100, and adjacent two rotating shafts are connected by the transmission belt 107 in a transmission manner, and the output shaft of the first motor 106 is coaxially connected to one of the rotating shafts through a coupling.

[0048] During use, start the first motor 106 to drive one group of placement racks 104 to rotate, and drive other placement racks 104 to rotate through the transmission belt 107, so as to drive multiple placement racks 104 to rotate, which can help the hot air flow better between the brake pads.

[0049] Refer to Figures 5 - 8 As shown, anti-slip strips 214 are fixedly provided on one side of the limit cover plate 201 close to the placement rack 104, and plug-in grooves 213 for plugging the anti-slip strips 214 are provided on the placement rack 104.

[0050] In the above solution, the top surface of the anti-slip strip 214 is arc-shaped, and the cross-sections of the anti-slip strip 214 and the plug-in groove 213 are strip-shaped. During installation, when the limit cover plate 201 is slidably plugged into the open end of the placement rack 104, the anti-slip strip 214 is plugged into the plug-in groove 213 to further set anti-slip for the limit cover plate 201.

[0051] Refer to Figures 1 - 3 As shown, the heating mechanism 300 includes: a hot air blower 301, an air outlet pipe 302 and an air inlet pipe 303; wherein, the hot air blower 301 is arranged in parallel with the processing box 100, the output end of the hot air blower 301 is fixedly connected to one end of the air outlet pipe 302, the other end of the air outlet pipe 302 is communicated with the inside of the processing box 100, one end of the air inlet pipe 303 is communicated with the processing box 100, and the other end is fixedly connected to the input end of the hot air blower 301.

[0052] In the above solution, a dust remover for processing the recycled hot air is provided at the air inlet of the air inlet pipe 303. After the brake pads are placed in the limit slots 105, start the hot air blower 301 to generate hot air, and the hot air is sent into the processing box 100 through the air outlet pipe 302 to heat the brake pads in the limit slots 105, and the heated hot air can be sent into the hot air blower 301 through the air inlet pipe 303 for further utilization.

[0053] Refer to Figure 4As shown, the heating mechanism 300 further includes: a second motor 304, an air storage box 305, a rotating disk 306, and a spray head 307; wherein, the air storage box 305 is fixedly arranged at the inner bottom of the processing box 100 and communicated with one end of the air outlet pipe 302, the rotating disk 306 is rotatably arranged on the air storage box 305 through a bearing, a plurality of spray heads 307 are equidistantly arranged along the circumference of the air storage box 305, the second motor 304 is fixedly arranged on the bottom surface of the processing box 100, and the output end of the second motor 304 is in transmission connection with the rotating shaft of the rotating disk 306.

[0054] During the heating process, the second motor 304 can be started as needed to convert the power of the second motor 304 into the power for the rotation of the rotating disk 306, thereby driving the rotating disk 306 to rotate, and then driving a plurality of spray heads 307 to rotate around the circle of the rotating disk 306, so that the spray heads 307 evenly spray hot air. After the heating is completed, the hot air blower 301 and the second motor 304 are turned off, and the uniform distribution of the hot air is realized through the rotation of the spray heads 307, ensuring that the brake pads are evenly heated.

[0055] Refer to Figures 1 - 2 As shown, an open port communicating with the inside is provided on the side surface of the processing box 100, and a sealing door 101 capable of covering the open port is hingedly arranged on the edge of the open port. A handle 102 and a transparent window 103 are further arranged on the sealing door 101.

[0056] In the above solution, the sealing door 101 can be quickly opened through the handle 102, which is convenient for putting in and taking out the brake pads. At the same time, an anti-slip gasket is fixedly sleeved on the surface of the handle 102, which can avoid the temperature of the handle 102 rising due to the heating of the hot air blower 301 and the heating pipe 108 and causing harm to the operator during use. The transparent window 103 is made of transparent explosion-proof glass material, which can withstand high temperatures and avoid damage to the transparent window 103 during heating, improving safety. The internal operation of the processing box 100 can be observed through the transparent window 103, and problems during the operation of the device can be discovered and solved in time.

[0057] Embodiment 2:

[0058] Refer to Figures 8 - 9 As shown, a brake pad heat treatment device, a limiting member is further arranged on the limiting cover plate 201 for further limiting the limiting cover plate 201 to prevent the limiting cover plate 201 from falling off the placement rack 104 during the rotation of the placement rack 104. The limiting member includes: a limiting plug 211, a second spring 212, and a sliding groove 215; wherein,

[0059] The sliding groove 215 is formed on one side of the limit cover plate 201 close to the placement rack 104. One end of the second spring 212 is fixedly arranged in the sliding groove 215, and the other end of the second spring 212 is fixedly connected to the limit insertion block 211. The limit insertion block 211 is in sliding fit with the sliding groove 215, and a limit hole 210 for cooperating with the limit insertion block 211 is formed on the placement rack 104.

[0060] In the above solution, the top end of the limit insertion block 211 is arc-shaped, and the edge of the limit hole 210 is provided with a chamfer. During use, the limit cover plate 201 is slid along the placement rack 104 and placed at the open end of the placement rack 104. As the limit cover plate 201 slides, the limit insertion block 211 automatically inserts into the limit cover plate 201 under the elastic force of the second spring 212. When disassembly is required, the locking of the pawl 205 is released, and the limit cover plate 201 is pulled outwards. Due to the arc shape of the top end of the limit insertion block 211 and the chamfer at the edge of the limit hole 210, the limit insertion block 211 can be separated from the limit hole 210, providing double fixation to ensure the stability of the limit cover plate 201 during the heating process.

[0061] Embodiment 3:

[0062] Refer to Figures 1 - 3 As shown, for a brake pad heat treatment device, a heating tube 108 for further heating the brake pads placed in the limit groove 105 is fixedly arranged on the inner side wall of the treatment box 100.

[0063] In the above solution, the heating tube 108 can assist in heating the brake pads placed in the limit groove 105. The heating tube 108 is fixed in an S shape on the inner side wall of the treatment box 100, increasing the heating path of the heating tube 108 and making the heating of the brake pads more complete.

[0064] In summary, for a brake pad heat treatment device provided by the present utility model, during use, the brake pads are placed in the limiting grooves 105 on the placement rack 104, and the limiting cover plate 201 is placed at the open end of the placement rack 104. The ratchet bar 203 is inserted into the insertion block 204, and the ratchet pawl 205 automatically meshes with the ratchet bar 203 to lock the ratchet bar 203, so that the ratchet bar 203 cannot be withdrawn from the insertion block 204, thereby ensuring that the limiting cover plate 201 is fixedly installed at the open end of the limiting cover plate 201 and preventing the limiting cover plate 201 from falling off during the heating process. Start the hot air blower 301 to generate hot air, and the hot air is sent into the processing box 100 through the air outlet pipe 302 to heat the brake pads in the limiting grooves 105. The heated hot air can be sent into the hot air blower 301 through the air inlet pipe 303 for further utilization. During the heating process, the second motor 304 can be started as needed to convert the power of the second motor 304 into the power for the rotating disc 306 to rotate, thereby driving the rotating disc 306 to rotate, and then driving a plurality of nozzles 307 to rotate circularly around the rotating disc 306, so that the nozzles 307 evenly spray hot air. After the heating is completed, turn off the hot air blower 301 and the second motor 304, and the hot air is evenly distributed by the rotation of the nozzles 307. When disassembly is required, press down the limiting plate 209 to drive the sliding rod 207 to slide into the insertion block 204, thereby squeezing the stopper 206 downward, driving the stopper 206 to move downward, and then driving the ratchet pawl 205 on the other side to rotate upward around the rotating shaft, so that the ratchet pawl 205 disengages from the ratchet bar 203, realizing the convenient and quick installation and disassembly of the limiting cover plate 201.

[0065] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all fall within the protection scope of the present utility model.

[0066] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any suitable way. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods.

[0067] In addition, any combination can be made among various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, and it should also be regarded as the content disclosed by the present utility model.

Claims

1. A brake pad heat treatment device, characterized in that: The device comprises: a processing box (100), a heating mechanism (300) is arranged at the bottom of the processing box (100), and a plurality of placement racks (104) are arranged above the heating mechanism (300) in a spaced and rotatable manner, the interior of each placement rack (104) is divided into a plurality of limiting grooves (105) by a partition, and both ends of each limiting groove (105) are respectively opened, and limiting cover plates (201) are respectively arranged on opposite sides of the placement rack (104) to cover the two open ends of each limiting groove (105).

2. A brake pad heat treatment device according to claim 1, characterized in that: The placement rack (104) is provided with a limiting mechanism (200) for locking each limiting cover plate (201); wherein: The limiting mechanism (200) comprises: a fixed plug-in and a locking piece; the two opposite end faces of each limiting cover plate (201) are respectively provided with a fixed plug-in, and the placement rack (104) is provided with a locking piece corresponding to each fixed plug-in, and the locking piece can be locked and connected with the corresponding fixed plug-in.

3. A brake pad heat treatment device according to claim 2, characterized in that: The fixing plug-in unit comprises: a fixing block (202) and a ratchet strip (203); the ratchet strip (203) is arranged on the limiting cover plate (201) through the fixing block (202).

4. A brake pad heat treatment device according to claim 3, characterized in that: The locking member comprises: a plug-in block (204), a ratchet (205), a stopper (206), a slide bar (207), a first spring (208) and a limit plate (209); wherein, The plug-in block (204) is arranged on the placement frame (104), and the ratchet (203) can be inserted into the plug-in block (204); the ratchet (205) is arranged in the plug-in block (204) by rotating the shaft and meshing with the ratchet (203); the stopper (206) is fixed on the ratchet (205) and arranged parallel to the plug-in block (204); the slide bar (207) slides through the top of the plug-in block (204), and its bottom surface contacts the stopper (206); the limit plate (209) is fixed on the top of the slide bar (207); the first spring (208) is sleeved on the slide bar (207) and its two ends are respectively arranged to abut against the upper surface of the plug-in block (204) and the bottom surface of the limit plate (209).

5. The brake pad heat treatment device according to claim 1, characterized in that: The two sides of the placement rack (104) adjacent to the limiting cover plate (201) are rotatably arranged on the inner side of the processing box (100) via horizontal and coaxially arranged rotating shafts.

6. A brake pad heat treatment device according to claim 5, characterized in that: A driving mechanism for driving all the placement racks (104) to rotate is arranged on the outside of the processing box (100); wherein: The driving machine comprises: a first motor (106) and a transmission belt (107); the rotating shaft portion located on the same side of each placement rack (104) extends out of the processing box (100), and the two adjacent rotating shafts are connected by a transmission belt (107), and the output shaft of the first motor (106) is coaxially connected to one of the rotating shafts through a shaft coupling.

7. A brake pad heat treatment device according to claim 2, characterized in that: An anti-slip strip (214) is fixedly provided on one side of the position-limiting cover plate (201) close to the placement rack (104), and an insertion groove (213) for inserting the anti-slip strip (214) is provided on the placement rack (104).

8. The brake pad heat treatment device according to claim 1, characterized in that: The heating mechanism (300) comprises: a hot air blower (301), an air outlet pipe (302) and an air inlet pipe (303); wherein: The hot air blower (301) is arranged in parallel with the processing box (100); the output end of the hot air blower (301) is fixedly connected to one end of the air outlet pipe (302); the other end of the air outlet pipe (302) is connected to the inside of the processing box (100); one end of the air inlet pipe (303) is connected to the processing box (100); and the other end of the air inlet pipe (303) is fixedly connected to the input end of the hot air blower (301).

9. A brake pad heat treatment device according to claim 8, characterized in that: The heating mechanism (300) further comprises: a second motor (304), an air storage box (305), a rotating disk (306) and a nozzle (307); wherein: The gas storage box (305) is fixedly arranged on the inner bottom of the processing box (100) and is connected to one end of the air outlet pipe (302); the rotating disk (306) is rotatably arranged on the gas storage box (305) via a bearing; a plurality of nozzles (307) are equidistantly arranged along the circumference of the gas storage box (305); the second motor (304) is fixedly arranged on the bottom surface of the processing box (100); and the output end of the second motor (304) is drivingly connected to the rotating shaft of the rotating disk (306).

10. The brake pad heat treatment device according to claim 1, characterized in that: The side of the processing box (100) is provided with an opening connected to the interior thereof, and a sealing door (101) capable of covering the opening is hingedly provided at the edge of the opening, and the sealing door (101) is also provided with a handle (102) and a transparent window (103).

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