Brake pad hot-pressing forming machine and forming process thereof

Abstract

The invention discloses a brake pad hot-press forming machine and a forming process thereof, and relates to the technical field of mechanical engineering, a middle die is installed in a lower die to complete rapid installation of the middle die, the die replacement and adjustment time can be shortened, and therefore the production efficiency is improved, after installation is completed, the lower die enters a forming area along a sliding rail plate, and the forming efficiency is improved. The position of the middle die is fixed through the positioning block and the second spring, it can be guaranteed that the positions of the die plate in the horizontal direction and the vertical direction are accurate through limiting and fixing, the die is prevented from deviating in the pressing process, after positioning is completed, the upper die is heated through the control box, the upper die makes contact with a forming material after reaching the proper temperature, and then the upper die is formed after being subjected to hot pressing. At the moment, the surface temperature of the area where the brake pad is located is high, the middle mold can be moved out after forming, the mounting block is separated from the mounting groove by moving the protection rod forwards, the middle mold can be detached at the moment, and operators are prevented from being scalded due to close contact with the mold.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical engineering, and in particular to a brake pad hot pressing molding machine and a molding process thereof. Background Art

[0002] Thermoforming machines are essential equipment in the manufacturing process of brake pads. Early thermoforming machines had some problems, such as requiring workers to manually add materials and lay steel parts, which was not only inefficient, but also easy for workers to touch the heat source in a small working space and get burned.

[0003] The patent with the patent announcement number CN214774196U relates to the field of mechanical engineering technology. The patent provides a brake pad hot pressing molding machine, including a first support plate, the middle part of the first support plate is penetrated and slidably connected with a sliding column, the lower end of the first support plate is fixedly connected with a hydraulic column, the other end of the hydraulic column is fixedly connected with a piston, the side wall of the piston is slidably connected with a hydraulic cylinder, the side wall of the hydraulic cylinder is fixedly connected with a third protective box, the upper end of the first support plate is provided with a trapezoidal slide, the inner wall of the trapezoidal slide is slidably connected with a trapezoidal slider, the other end of the trapezoidal slider is fixedly connected with a fixed block, the middle part of the fixed block is penetrated and rotatably connected with a lead screw, one end of the lead screw is provided with a motor, the lower end of the motor is fixedly connected with a second support plate, and the upper end of the first support plate is fixedly connected with a slider. In this patent, the structure is simple, the degree of automation is high, the safety factor is high, the energy consumption is low, the demoulding is convenient and fast, and the product will not be damaged.

[0004] The above patent has a simple structure, a high degree of automation, a high safety factor, low energy consumption, and convenient and quick demolding without damaging the product. However, the current measuring equipment has the following problems: During the pressing process, if the mold is not fixed, it may move due to uneven force, causing the distribution of the raw material in the mold to change, thereby making the density of the pressed brake pad uneven. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a brake pad hot pressing molding machine and a molding process thereof, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a brake pad hot press molding machine, comprising a base, above which a molding device, a cleaning device and an auxiliary device are arranged; wherein the molding device comprises a fixed frame, a control box, a hydraulic rod 1, a connecting plate, an upper mold, a slide plate, a lower mold, a middle mold, a protective rod, a mounting block, a No. 1 spring, a positioning block, an arc block and a No. 2 spring, the fixed frame is fixedly mounted on the top of the base, the control box is fixedly mounted on the top of the fixed frame, the fixed end of the hydraulic rod 1 is fixedly mounted on the top of the control box, the connecting plate is fixedly mounted on the top of the hydraulic rod 1, the upper mold is fixedly mounted on the bottom of the connecting plate, the slide plate is fixedly mounted on the inner wall of the fixed frame, the lower mold is slidably mounted on the top of the slide plate, and the middle mold is slidably mounted on the lower mold The inner wall, the protective rod is slidably installed on the inner wall of the lower mold, the mounting block is slidably installed on the inner wall of the protective rod, the No. 1 spring is arranged between the mounting block and the protective rod, and the mounting block is driven to reset by the arranged No. 1 spring, and the middle mold is installed in the lower mold. During installation, the outer wall of the middle mold will contact the inclined surface of the mounting block, so that the mounting block moves forward and compresses the No. 1 spring at the same time. When the mounting groove and the mounting block are in the same horizontal line, the No. 1 spring is released and drives the mounting block to be inserted into the mounting groove. At this time, the installation of the centering mold is completed, the arc block is slidably installed on the inner wall of the fixing frame, one side of the positioning block is slidably installed on the inner wall of the fixing frame, and the other side of the positioning block is slidably installed on the circumferential surface of the arc block, and the No. 2 spring is arranged between the positioning block and the fixing frame, and the positioning block is driven to reset by the arranged No. 2 spring.

[0007] According to the above technical solution, a guide groove is provided inside the fixed frame, a positioning groove is provided on the left side of the fixed frame, the control box is electrically connected to the hydraulic rod 1, and the control box is electrically connected to the upper mold. After positioning is completed, the upper mold is heated by the control box, and after reaching a suitable temperature, the control box controls the movable end of the hydraulic rod 1 to move downward while driving the connecting plate to move. The movement of the connecting plate drives the upper mold to move, and the upper mold contacts the molding material and then hot presses it into shape.

[0008] According to the above technical solution, a mounting groove is provided on the surface of the middle mold close to the mounting block, and a No. 3 spring is provided between the protective rod and the lower mold. The protective rod is reset by the No. 3 spring. The top of the mounting block is set as an inclined surface, and the front side of the positioning block is set as an inclined surface. After molding, the middle mold will be moved out. At this time, the mounting block is separated from the mounting groove by moving the protective rod forward, and the middle mold can be disassembled at this time.

[0009] According to the above technical scheme, the cleaning device includes a rotating motor, a round rod, a sliding button, a scraper, a track rod and a collecting box. The fixed end of the rotating motor is fixedly installed on the right side of the fixed frame, the round rod is fixedly installed on the output end of the rotating motor, the circumferential surface of the round rod is provided with a reciprocating spiral groove, the sliding button is threadedly installed on the circumferential surface of the round rod, one side of the scraper is fixedly installed on the front side of the sliding button, the track rod is fixedly installed on the inner wall of the fixed frame, the other side of the scraper is slidably installed on the circumferential surface of the track rod, and the collecting box is slidably installed on the inner wall of the fixed frame. The output end of the rotating motor drives the round rod to rotate, the rotation of the round rod drives the reciprocating spiral groove to rotate, the sliding button moves through the reciprocating spiral groove, the movement of the sliding button drives the scraper to move and is auxiliary supported by the track rod, and the molding material overflowing from the surface of the middle mold can be scraped into the guide groove through the scraper.

[0010] According to the above technical solution, the cleaning device also includes a U-shaped rod and a trigger rod. The U-shaped rod is fixedly installed at the bottom of the connecting plate, and the trigger rod is fixedly installed at the bottom of the U-shaped rod. The U-shaped rod is driven to move by the downward movement of the connecting plate, and the movement of the U-shaped rod drives the trigger rod to move.

[0011] According to the above technical solution, the cleaning device also includes an arc rod and a brake block. The arc rod is slidably installed on the inner wall of the fixed frame, and the brake block is fixedly installed on the inner wall of the arc block. A No. 4 spring is arranged between the arc rod and the fixed frame, and the arc rod is driven to reset by the arranged No. 4 spring. The top of the brake block is arranged as an inclined surface, and the brake block contacts the arc rod. When the arc rod moves downward, it will contact the inclined surface of the brake block, causing the brake block to move to the left.

[0012] According to the above technical solution, the auxiliary device includes a mounting seat, a medicine box, a switch valve and a high-pressure nozzle. The mounting seat is fixedly installed on the left side of the fixing frame, the medicine box is arranged on the inner wall of the mounting seat, the high-pressure nozzle is arranged on the inner wall of the fixing frame, the high-pressure nozzle is connected to the medicine box through a pipeline, the switch valve is arranged on the circumferential surface of the pipeline, and a control rod is arranged on the circumferential surface of the switch valve. A No. 1 torsion spring is arranged between the control rod and the switch valve, and the control rod is reset by the No. 1 torsion spring. A release agent is arranged in the medicine box, and the U-shaped rod moves downward to contact the control rod, so that the switch valve is opened after the control rod is rotated. At this time, the release agent in the medicine box will be transported to the high-pressure nozzle through the pipeline, and then sprayed to the mold with the high-pressure nozzle.

[0013] According to the above technical solution, the auxiliary device also includes an elastic telescopic rod and a second hydraulic rod. The fixed end of the elastic telescopic rod is fixedly installed on the top of the base, and the fixed end of the second hydraulic rod is fixedly installed on the top of the base. When the carrier plate moves, the second hydraulic rod is used for auxiliary support. After the hot pressing is completed, the movable end of the elastic telescopic rod is reset so that the molded brake pad is ejected by the carrier plate.

[0014] According to the above technical solution, the auxiliary device also includes a limit block and a loading plate, wherein the limit block is fixedly mounted on the fixed end of the elastic telescopic rod, one side of the loading plate is fixedly mounted on the movable end of the elastic telescopic rod, and the other side of the loading plate is slidably mounted on the inner wall of the lower mold, and the movable end of the hydraulic rod 2 is fixedly mounted on the bottom of the loading plate. During hot pressing, the molding material is loaded through the loading plate, and the pressure of the upper mold will cause the loading plate to move downward, and the movement of the loading plate will contact the limit block.

[0015] A forming process of a brake pad hot pressing forming machine comprises the following steps: Step 1: Install the middle mold in the lower mold. During installation, the outer wall of the middle mold will contact the inclined surface of the mounting block, causing the mounting block to move forward and compress the No. 1 spring. When the mounting groove and the mounting block are at the same horizontal line, the No. 1 spring is released and drives the mounting block to be inserted into the mounting groove. At this time, the installation of the center mold is completed; Step 2: Place the molding material in the middle mold. After installation, the lower mold enters the molding area along the slide plate. At this time, the outer wall of the lower mold will contact the inclined surface of the positioning block, causing the positioning block to move to the left and compress the No. 2 spring. When the positioning groove and the positioning block are on the same horizontal line, the No. 2 spring is released and drives the positioning block to insert into the positioning groove. At this time, the position of the middle mold is fixed; Step 3: After positioning is completed, the upper mold is heated through the control box. After reaching a suitable temperature, the control box controls the movable end of the hydraulic rod to move downward while driving the connecting plate to move. The movement of the connecting plate drives the upper mold to move. After the upper mold contacts the molding material, it is hot-pressed and molded.

[0016] The present invention provides a brake pad hot pressing forming machine and a forming process thereof, which have the following beneficial effects: (1) The invention, through the setting of the molding device, completes the installation of the center mold by installing the middle mold in the lower mold. The rapid installation of the middle mold can reduce the time of mold replacement and adjustment, thereby improving production efficiency. At this time, the molding material is placed in the middle mold. After the installation is completed, the lower mold enters the molding area along the slide plate. The position of the middle mold is fixed by the positioning block and the second spring. The position accuracy of the template is crucial to the molding quality of the brake pad. The limit fixation can ensure that the position of the template in the horizontal and vertical directions is accurate and prevent the mold from shifting during the pressing process. After the positioning is completed, the upper mold is heated by the control box. After reaching the appropriate temperature, the upper mold is driven to move by the movable end of the hydraulic rod. After the upper mold contacts the molding material, it is hot-pressed and molded. At this time, the surface temperature of the area where the brake pad is located is relatively high. After molding, the middle mold will move out. At this time, the protective rod is moved forward to make the installation block detach from the installation groove. At this time, the middle mold can be disassembled to prevent the operator from close contact with the mold and causing burns.

[0017] (2) The invention, through the setting of the cleaning device, drives the scraper to move by rotating the motor, the round rod, and the sliding button, so that the molding material overflowing from the surface of the middle mold can be scraped into the guide groove, and then enter the collection box through the guide groove. If the overflowing molding material is not collected, it will be wasted. Collecting these materials can reuse them in production, thereby improving the utilization rate of materials and reducing production costs. The arc block is driven to move by the connecting plate, the U-shaped rod, the trigger rod, the arc rod, and the brake block. The movement of the arc block drives the movement of the positioning block. At this time, the positioning block is disengaged from the positioning groove, so that the middle mold can be moved. At the same time, the movement of the arc block will hit the collection box, so that the molding material remaining on the outer wall of the collection box or the guide groove is shaken off, preventing these materials from accumulating and clogging the equipment.

[0018] (3) The invention, through the setting of the auxiliary device, allows the U-shaped rod to move downward and contact the control rod, so that the control rod is rotated to open the switch valve. At this time, the demoulding agent in the reagent box will be transported to the high-pressure nozzle through the pipeline, and then sprayed to the mold by the high-pressure nozzle. The automatic spraying of the demoulding agent can reduce manual operation and improve the degree of automation of the production process, thereby improving production efficiency. During hot pressing, the molding material is loaded through the loading plate. After the hot pressing is completed, the movable end of the elastic telescopic rod is reset to allow the molded brake pad to be ejected by the loading plate. Since the brake pad is in a high temperature and high pressure state after hot pressing, the automatic ejection can reduce deformation or damage caused by improper manual operation, and also reduce the need for manual demoulding and reduce the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the protective rod and the lower mold position structure of the present invention; Figure 3 This is a schematic diagram of the mounting block and the middle mold position structure of the present invention; Figure 4 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 5 This is a schematic diagram of the position structure of the collecting box and the fixing frame of the present invention; Figure 6 This is a schematic diagram of the position structure of the sliding button and the loading plate of the present invention; Figure 7 It is a schematic diagram of the position structure of the switch valve and the high-pressure nozzle of the present invention.

[0020] In the figure: 1. base; 2. fixing frame; 3. control box; 4. hydraulic rod one; 5. connecting plate; 6. upper mold; 7. slide plate; 8. lower mold; 9. middle mold; 10. protection rod; 11. mounting block; 12. spring No. 1; 13. positioning block; 14. arc block; 15. spring No. 2; 20. rotating motor; 21. round rod; 22. sliding button; 23. scraper; 24. track rod; 25. collecting box; 26. U-shaped rod; 27. trigger rod; 28. arc rod; 29. ​​brake block; 30. mounting seat; 31. medicine box; 32. switch valve; 33. high-pressure nozzle; 34. elastic telescopic rod; 35. hydraulic rod two; 36. limit block; 37. loading plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 4 An embodiment of the present invention is: a brake pad hot pressing molding machine, comprising a base 1, a molding device is arranged above the base 1, and the molding device comprises a fixed frame 2, a control box 3, a hydraulic rod 4, a connecting plate 5, an upper mold 6, a slide plate 7, a lower mold 8, a middle mold 9, a protective rod 10, a mounting block 11, a No. 1 spring 12, a positioning block 13, an arc block 14 and a No. 2 spring 15. The fixed frame 2 is fixedly mounted on the top of the base 1, the control box 3 is fixedly mounted on the top of the fixed frame 2, the fixed end of the hydraulic rod 4 is fixedly mounted on the top of the control box 3, the connecting plate 5 is fixedly mounted on the top of the hydraulic rod 4, the upper mold 6 is fixedly mounted on the bottom of the connecting plate 5, the slide plate 7 is fixedly mounted on the inner wall of the fixed frame 2, the lower mold 8 is slidably mounted on the top of the slide plate 7, the middle mold 9 is slidably mounted on the inner wall of the lower mold 8, and the protective rod 10 is slidably mounted on the inner wall of the lower mold 8. Installed on the inner wall of the lower mold 8, the mounting block 11 is slidably installed on the inner wall of the protective rod 10, and the No. 1 spring 12 is arranged between the mounting block 11 and the protective rod 10. The mounting block 1 is reset by the arranged No. 1 spring 12. The rapid installation of the middle mold 9 can reduce the time of mold replacement and adjustment, thereby improving production efficiency. The arc block 14 is slidably installed on the inner wall of the fixed frame 2, one side of the positioning block 13 is slidably installed on the inner wall of the fixed frame 2, and the other side of the positioning block 13 is slidably installed on the circumferential surface of the arc block 14. The No. 2 spring 15 is arranged between the positioning block 13 and the fixed frame 2. The positioning block 13 is reset by the arranged No. 2 spring 15. The position accuracy of the template is very important to the molding quality of the brake pad. The limit fixation can ensure the accurate position of the template in the horizontal and vertical directions to prevent the mold 9 from shifting during the pressing process.

[0023] A guide groove is provided inside the fixed frame 2, a positioning groove is provided on the left side of the fixed frame 2, the control box 3 is electrically connected to the hydraulic rod 4, the control box 3 is electrically connected to the upper mold 6, the upper mold 6 is heated by the control box 3, and after reaching a suitable temperature, the movable end of the hydraulic rod 4 is controlled by the control box 3 to move downward.

[0024] A mounting groove is provided on the surface of the middle mold 9 close to the mounting block 11, and a No. 3 spring is provided between the protective rod 10 and the lower mold 8. The No. 3 spring drives the protective rod 10 to reset. The top of the mounting block 11 is set as an inclined surface, and the front side of the positioning block 13 is set as an inclined surface. The outer wall of the lower mold 8 will contact the inclined surface of the positioning block 13 to make the positioning block 13 move to the left.

[0025] A forming process of a brake pad hot pressing forming machine comprises the following steps: Step 1: By installing the middle mold 9 in the lower mold 8, during installation, the outer wall of the middle mold 9 will contact the inclined surface of the mounting block 11, so that the mounting block 11 moves forward and compresses the No. 1 spring 12. When the mounting groove and the mounting block 11 are on the same horizontal line, the No. 1 spring 12 is released and drives the mounting block 11 to be inserted into the mounting groove, and the installation of the middle mold 9 is completed; Step 2: Place the molding material in the middle mold 9. After the installation is completed, the lower mold 8 enters the molding area along the slide plate 7. At this time, the outer wall of the lower mold 8 will contact the inclined surface of the positioning block 13, so that the positioning block 13 moves to the left and compresses the second spring 15. When the positioning groove and the positioning block 13 are on the same horizontal line, the second spring 15 is released and drives the positioning block 13 to insert into the positioning groove. At this time, the position of the middle mold 9 is fixed; Step three: After positioning is completed, the upper mold 6 is heated by the control box 3. After reaching a suitable temperature, the control box 3 controls the movable end of the hydraulic rod 4 to move downward while driving the connecting plate 5 to move. The movement of the connecting plate 5 drives the upper mold 6 to move. After the upper mold 6 contacts the molding material, it is hot-pressed and molded.

[0026] When the present embodiment is working, the middle mold 9 is installed in the lower mold 8. During installation, the outer wall of the middle mold 9 will contact the inclined surface of the mounting block 11, causing the mounting block 11 to move forward and compress the No. 1 spring 12. When the mounting groove and the mounting block 11 are at the same horizontal line, the No. 1 spring 12 is released and drives the mounting block 11 to be inserted into the mounting groove. At this time, the installation of the middle mold 9 is completed. The rapid installation of the middle mold 9 can reduce the time for mold replacement and adjustment, thereby improving production efficiency. At this time, the molding material is placed in the middle mold 9. After the installation is completed, the lower mold 8 enters the molding area along the slide plate 7. At this time, the outer wall of the lower mold 8 will contact the inclined surface of the positioning block 13, causing the positioning block 13 to move to the left and compress the No. 2 spring 15. When the positioning groove and the positioning block 13 are at the same horizontal line, the No. 2 spring 15 is released. And drive the positioning block 13 to insert into the positioning groove. At this time, the position of the middle mold 9 is fixed. The positioning accuracy of the template is crucial to the molding quality of the brake pad. The limit fixation can ensure the accurate position of the template in the horizontal and vertical directions to prevent the mold 9 from shifting during the pressing process. After the positioning is completed, the upper mold 6 is heated by the control box 3. After reaching the suitable temperature, the control box 3 controls the movable end of the hydraulic rod 4 to move downward while driving the connecting plate 5 to move. The movement of the connecting plate 5 drives the upper mold 6 to move. After the upper mold 6 contacts with the molding material, it is hot-pressed and molded. At this time, the surface temperature of the area where the brake pad is located is relatively high. After molding, the middle mold 9 will be moved out. At this time, the protective rod 10 is moved forward to make the mounting block 11 disengage from the mounting groove. At this time, the middle mold 9 can be disassembled to prevent the operator from being burned by close contact with the mold.

[0027] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a cleaning device and an auxiliary device are arranged above the base 1, and the cleaning device includes a rotating motor 20, a round rod 21, a sliding button 22, a scraper 23, a track rod 24 and a collecting box 25. The fixed end of the rotating motor 20 is fixedly installed on the right side of the fixed frame 2, the round rod 21 is fixedly installed on the output end of the rotating motor 20, a reciprocating spiral groove is opened on the circumferential surface of the round rod 21, the sliding button 22 is threadedly installed on the circumferential surface of the round rod 21, one side of the scraper 23 is fixedly installed on the front side of the sliding button 22, the track rod 24 is fixedly installed on the inner wall of the fixed frame 2, and the other side of the scraper 23 is slidably installed on the circumferential surface of the track rod 24, and the collecting box 25 is slidably installed on the inner wall of the fixed frame 2. The molding material overflowing from the surface of the middle mold 9 can be scraped into the guide groove by the scraper 23, and then enters the collecting box 25 through the guide groove. If the overflowing molding material is not collected, it will be wasted. Collecting these materials can be reused in production, thereby improving the utilization rate of materials and reducing production costs.

[0028] The cleaning device further comprises a U-shaped rod 26 and a trigger rod 27 . The U-shaped rod 26 is fixedly mounted on the bottom of the connecting plate 5 , and the trigger rod 27 is fixedly mounted on the bottom of the U-shaped rod 26 . The movement of the U-shaped rod 26 drives the movement of the trigger rod 27 .

[0029] The cleaning device also includes an arc rod 28 and a brake block 29. The arc rod 28 is slidably mounted on the inner wall of the fixed frame 2, and the brake block 29 is fixedly mounted on the inner wall of the arc block 14. A No. 4 spring is arranged between the arc rod 28 and the fixed frame 2, and the arc rod 28 is reset by the arranged No. 4 spring. The top of the brake block 29 is arranged as an inclined surface, and the brake block 29 contacts the arc rod 28. The movement of the arc block 14 will hit the collection box 25, so that the molding materials remaining on the outer wall of the collection box 25 or the guide groove are shaken off, thereby preventing these materials from accumulating and clogging the equipment.

[0030] The auxiliary device includes a mounting seat 30, a medicine box 31, a switch valve 32 and a high-pressure nozzle 33. The mounting seat 30 is fixedly installed on the left side of the fixing frame 2. The medicine box 31 is arranged on the inner wall of the mounting seat 30. The high-pressure nozzle 33 is arranged on the inner wall of the fixing frame 2. The high-pressure nozzle 33 is connected to the medicine box 31 through a pipeline. The switch valve 32 is arranged on the circumferential surface of the pipeline. A control rod is arranged on the circumferential surface of the switch valve 32. A No. 1 torsion spring is arranged between the control rod and the switch valve 32. The control rod is reset by the No. 1 torsion spring. A release agent is arranged in the medicine box 31. Automatic spraying of the release agent can reduce manual operation, improve the degree of automation of the production process, and thus improve production efficiency.

[0031] The auxiliary device also includes an elastic telescopic rod 34 and a hydraulic rod 35. The fixed end of the elastic telescopic rod 34 is fixedly installed on the top of the base 1, and the fixed end of the hydraulic rod 35 is fixedly installed on the top of the base 1. Since the brake pads are in a high temperature and high pressure state after hot pressing, automatic popping out can reduce deformation or damage caused by improper manual operation, and also reduce the need for manual demolding and reduce the labor intensity of operators.

[0032] The auxiliary device also includes a limit block 36 and a loading plate 37. The limit block 36 is fixedly mounted on the fixed end of the elastic telescopic rod 34, one side of the loading plate 37 is fixedly mounted on the movable end of the elastic telescopic rod 34, and the other side of the loading plate 37 is slidably mounted on the inner wall of the lower mold 8. The movable end of the hydraulic rod 2 35 is fixedly mounted on the bottom of the loading plate 37. When the loading plate 37 moves, it will contact the limit block 36, so that the loading plate 37 cannot continue to move downward.

[0033] When the present embodiment is working, the output end of the rotary motor 20 rotates to drive the round rod 21 to rotate, and the rotation of the round rod 21 drives the reciprocating spiral groove to rotate, and the sliding button 22 moves through the reciprocating spiral groove, and the movement of the sliding button 22 drives the scraper 23 to move and is supported by the track rod 24. The molding material overflowing from the surface of the middle mold 9 can be scraped into the guide groove through the scraper 23, and then enters the collection box 25 through the guide groove. If the overflowing molding material is not collected, it will be wasted. Collecting these materials can be reused in production, thereby improving the utilization rate of materials and reducing production costs. The U-shaped The rod 26 moves, and the U-shaped rod 26 moves to drive the trigger rod 27 to move. The trigger rod 27 moves to contact the arc rod 28, so that the arc rod 28 moves downward. The arc rod 28 moves downward to contact the inclined surface of the brake block 29, so that the brake block 29 moves to the left. The brake block 29 moves to drive the arc block 14 to move. The arc block 14 moves to drive the positioning block 13 to move. At this time, the positioning block 13 is separated from the positioning groove, so that the middle mold 9 can move. At the same time, the arc block 14 moves to hit the collection box 25, so that the molding materials remaining on the outer wall of the collection box 25 or the guide groove are shaken off, so as to prevent the accumulation of these materials from clogging the equipment. The U-shaped rod 26 moves downward and contacts the control rod, so that the switch valve 32 is opened after the control rod is rotated. At this time, the demoulding agent in the reagent box 31 will be transported to the high-pressure nozzle 33 through the pipeline, and then sprayed to the mold with the high-pressure nozzle 33. The automatic spraying of the demoulding agent can reduce manual operation, improve the degree of automation of the production process, and thus improve production efficiency. During hot pressing, the molding material is loaded through the loading plate 37, and the pressure of the upper mold 6 will cause the loading plate 37 to move downward. The movement of the loading plate 37 will contact the limit block 36, so that the loading plate 37 cannot continue to move downward and compress the active end of the elastic telescopic rod 34. When the loading plate 37 moves, auxiliary support is provided by the hydraulic rod 2 35. After the hot pressing is completed, the active end of the elastic telescopic rod 34 is reset to make the molded brake pad ejected by the loading plate 37. Since the brake pad after hot pressing is in a high temperature and high pressure state, automatic ejection can reduce deformation or damage caused by improper manual operation, and also reduce the demand for manual demoulding, and reduce the labor intensity of the operator.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brake pad hot pressing machine, comprising a base (1), characterized in that: A molding device, a cleaning device and an auxiliary device are arranged above the base (1); The molding device comprises a fixed frame (2), a control box (3), a hydraulic rod one (4), a connecting plate (5), an upper mold (6), a slide plate (7), a lower mold (8), a middle mold (9), a protective rod (10), a mounting block (11), a No. 1 spring (12), a positioning block (13), an arc block (14) and a No. 2 spring (15), wherein the fixed frame (2) is fixedly mounted on the top of the base (1), the control box (3) is fixedly mounted on the top of the fixed frame (2), the fixed end of the hydraulic rod one (4) is fixedly mounted on the top of the control box (3), the connecting plate (5) is fixedly mounted on the top of the hydraulic rod one (4), the upper mold (6) is fixedly mounted on the bottom of the connecting plate (5), and the slide plate (7) is fixedly mounted on the top of the hydraulic rod one (4). The lower mold (8) is slidably mounted on the top of the slide rail plate (7), the middle mold (9) is slidably mounted on the inner wall of the lower mold (8), the protective rod (10) is slidably mounted on the inner wall of the lower mold (8), the mounting block (11) is slidably mounted on the inner wall of the protective rod (10), the first spring (12) is arranged between the mounting block (11) and the protective rod (10), the arc block (14) is slidably mounted on the inner wall of the fixed frame (2), one side of the positioning block (13) is slidably mounted on the inner wall of the fixed frame (2), and the other side of the positioning block (13) is slidably mounted on the circumferential surface of the arc block (14), and the second spring (15) is arranged between the positioning block (13) and the fixed frame (2).

2. A brake pad hot pressing forming machine according to claim 1, characterized in that: A guide groove is provided inside the fixing frame (2), a positioning groove is provided on the left side of the fixing frame (2), the control box (3) is electrically connected to the hydraulic rod 1 (4), and the control box (3) is electrically connected to the upper mold (6).

3. A brake pad hot pressing forming machine according to claim 2, characterized in that: A mounting groove is provided on the surface of the middle mold (9) on the side close to the mounting block (11), a No. 3 spring is provided between the protection rod (10) and the lower mold (8), the top of the mounting block (11) is provided as an inclined surface, and the front side of the positioning block (13) is provided as an inclined surface.

4. A brake pad hot pressing forming machine according to claim 3, characterized in that: The cleaning device comprises a rotating motor (20), a round rod (21), a sliding button (22), a scraper (23), a track rod (24) and a collecting box (25); the fixed end of the rotating motor (20) is fixedly mounted on the right side of the fixing frame (2); the round rod (21) is fixedly mounted on the output end of the rotating motor (20); a reciprocating spiral groove is provided on the circumferential surface of the round rod (21); the sliding button (22) is threadedly mounted on the circumferential surface of the round rod (21); one side of the scraper (23) is fixedly mounted on the front side of the sliding button (22); the track rod (24) is fixedly mounted on the inner wall of the fixing frame (2); the other side of the scraper (23) is slidably mounted on the circumferential surface of the track rod (24); and the collecting box (25) is slidably mounted on the inner wall of the fixing frame (2).

5. The brake pad hot pressing forming machine according to claim 4, characterized in that: The cleaning device further comprises a U-shaped rod (26) and a trigger rod (27), wherein the U-shaped rod (26) is fixedly mounted on the bottom of the connecting plate (5), and the trigger rod (27) is fixedly mounted on the bottom of the U-shaped rod (26).

6. A brake pad hot pressing forming machine according to claim 5, characterized in that: The cleaning device further comprises an arc rod (28) and a brake block (29), wherein the arc rod (28) is slidably mounted on the inner wall of the fixing frame (2), and the brake block (29) is fixedly mounted on the inner wall of the arc block (14), a No. 4 spring is arranged between the arc rod (28) and the fixing frame (2), and the top of the brake block (29) is arranged as an inclined surface, and the brake block (29) is in contact with the arc rod (28).

7. The brake pad hot pressing forming machine according to claim 6, characterized in that: The auxiliary device comprises a mounting seat (30), a medicine box (31), a switch valve (32) and a high-pressure nozzle (33); the mounting seat (30) is fixedly mounted on the left side of the fixing frame (2); the medicine box (31) is arranged on the inner wall of the mounting seat (30); the high-pressure nozzle (33) is arranged on the inner wall of the fixing frame (2); the high-pressure nozzle (33) is connected to the medicine box (31) through a pipeline; the switch valve (32) is arranged on the circumferential surface of the pipeline; a control rod is arranged on the circumferential surface of the switch valve (32); a first torsion spring is arranged between the control rod and the switch valve (32); and a release agent is arranged in the medicine box (31).

8. The brake pad hot pressing forming machine according to claim 7, characterized in that: The auxiliary device further comprises an elastic telescopic rod (34) and a second hydraulic rod (35), wherein the fixed end of the elastic telescopic rod (34) is fixedly mounted on the top of the base (1), and the fixed end of the second hydraulic rod (35) is fixedly mounted on the top of the base (1).

9. A brake pad hot pressing forming machine according to claim 8, characterized in that: The auxiliary device further comprises a limit block (36) and a material carrying plate (37), wherein the limit block (36) is fixedly mounted on the fixed end of the elastic telescopic rod (34), one side of the material carrying plate (37) is fixedly mounted on the movable end of the elastic telescopic rod (34), the other side of the material carrying plate (37) is slidably mounted on the inner wall of the lower mold (8), and the movable end of the second hydraulic rod (35) is fixedly mounted on the bottom of the material carrying plate (37).

10. A forming process of a brake pad hot press forming machine, using the brake pad hot press forming machine according to claim 9, characterized in that: The following steps are involved: Step 1: The middle mold (9) is installed in the lower mold (8). During installation, the outer wall of the middle mold (9) contacts the inclined surface of the mounting block (11), so that the mounting block (11) moves forward and compresses the first spring (12). When the mounting groove and the mounting block (11) are on the same horizontal line, the first spring (12) is released and drives the mounting block (11) to be inserted into the mounting groove. At this time, the installation of the middle mold (9) is completed. Step 2: Place the molding material into the middle mold (9). After installation, the lower mold (8) enters the molding area along the slide plate (7). At this time, the outer wall of the lower mold (8) contacts the inclined surface of the positioning block (13), causing the positioning block (13) to move to the left and compress the second spring (15). When the positioning groove and the positioning block (13) are on the same horizontal line, the second spring (15) is released and drives the positioning block (13) to be inserted into the positioning groove. At this time, the position of the middle mold (9) is fixed; Step 3: After positioning is completed, the upper mold (6) is heated by the control box (3). After reaching a suitable temperature, the control box (3) controls the movable end of the hydraulic rod (4) to move downward and simultaneously drives the connecting plate (5) to move. The movement of the connecting plate (5) drives the upper mold (6) to move. After the upper mold (6) contacts the molding material, it is hot-pressed and molded.

Images