Automatic production line of brake pad hot press

Abstract

The brake pad hot press automatic production line comprises two hot press main unit sets which are oppositely arranged, and each hot press main unit set is provided with a plurality of hot press main units which are arranged side by side. A robot is arranged in the middle position between the two hot-pressing main units; a charging machine and a supplying machine are arranged at one end of each hot-pressing main unit, a finished product discharging platform is arranged at the other end of each hot-pressing main unit, and a main truss is arranged at the upper part of each hot-pressing main unit and is provided with a finished product gripper and a cleaning mechanism which translate between the hot-pressing main units and can ascend and descend; a steel backing feeding platform is arranged between the two finished product discharging platforms. Each hot-pressing host is provided with a steel backing and a friction material by a robot; and the main truss outputs finished products and cleans the molds, and the finished product discharging platform sorts and stores the finished products. According to the automatic production line of the brake pad hot press, full-process unmanned production of multiple hot presses is achieved through modular collaborative design, parallel production of multiple types of brake pads is supported, and dust hazards in the production link are eliminated; and the product quality is improved, the productivity is remarkably improved, and the product cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts manufacturing, in particular to an automatic production line of a brake pad hot press. Background Art

[0002] Currently, brake pad production relies on manual labor combined with semi-automated equipment, resulting in low production efficiency. Furthermore, because brake pads are primarily made by pressing friction powder and steel backing under high temperature and pressure, workers working under these conditions are inevitably exposed to high temperatures and high dust, posing a significant threat to their physical and mental health.

[0003] In addition, brake pad production requires multiple production processes, including weighing, feeding, pre-pressing, cleaning molds, spraying release agents, placing steel backs, pressing, demolding, and finished product offline. In the absence of fully automated brake pad production, real-time human participation is required to assist in production, which affects the efficiency, cost, and reliability of the entire production.

[0004] Therefore, improving the full automation of the brake pad production line and reducing the labor intensity of the staff has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In response to the above technical problems, the present invention provides an automated production line for brake pad hot presses. Through modular collaborative design, it realizes unmanned production of multiple hot presses throughout the entire process, supports the parallel production of multiple models of brake pads, eliminates dust hazards in the production process, solves the problem of brake pad density consistency, and improves product quality. It also significantly increases production capacity and reduces product costs.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] An automated production line for a brake pad hot press comprises two sets of hot press mainframes arranged opposite to each other, each set of the hot press mainframes being provided with a plurality of parallel hot press mainframes;

[0008] A robot is provided in the middle position between the two groups of hot pressing main units, and the robot has a raw material gripper;

[0009] One end of each hot pressing main unit is provided with a feeder and a feeding machine, and the other end is provided with a finished product unloading platform, and a main truss is provided on the upper part. The main truss is provided with a finished product gripper and a cleaning mechanism that can be moved horizontally and lifted between the hot pressing main units; a steel back feeding platform is provided between the two finished product unloading platforms;

[0010] The feeder automatically weighs the friction material and outputs it to the feeder; the feeder receives the friction material, vibrates and flattens it, and then provides it to the robot for grabbing;

[0011] The robot uses its raw material gripper to suck the steel back from the steel back feeding platform onto the mold of the hot pressing machine. Then, the raw material gripper throws the friction material provided by the feeder into the mold cavity of the hot pressing machine. The hot pressing machine presses the steel back and the friction material into a brake pad.

[0012] The finished product gripper moves the pressed brake pads to the finished product unloading platform, the finished product unloading platform sorts and caches the brake pads, and the cleaning mechanism removes the mold of the brake pads and cleans them;

[0013] A main electrical box is provided on each side of the two finished product unloading platforms. A control system is provided in the main electrical box to control the automated operation of each device on the production line.

[0014] Each of the two hot-pressing main units of the brake pad hot-pressing automated production line uses robots to supply raw materials, automatically providing steel backing and friction materials; the finished products are then output through the finished product grippers on the main truss, and the final pressed brake pads are sorted and cached on the finished product unloading platform; the cleaning mechanism on the main truss cleans the mold and continues with the next round of product pressing.

[0015] This automated production line achieves unmanned production of multiple hot presses throughout the entire process through modular collaborative design of robots and main trusses, supporting the parallel production of multiple models of brake pads; the cleaning mechanism eliminates dust hazards in the production process, and the working environment is environmentally friendly and pollution-free; multiple hot press machines continuously press products, significantly improving production capacity, improving work efficiency, reducing product costs, and alleviating the labor intensity of staff.

[0016] A further optimized solution further includes a hydraulic station platform, which supplies oil to the hot pressing main unit, and the hydraulic station platform is located between the two charging machines. The hydraulic station platform is located between the two charging machines, making the entire production line compact and making rational use of the floor space.

[0017] To further optimize the solution, the feeder is provided with two hopper mechanisms for automatic feeding, which are respectively used to place the outer material and the base material in the friction material;

[0018] The two silo mechanisms weigh the fabric and base material according to product requirements and output them to the first discharging hopper group and the second discharging hopper group.

[0019] The hopper mechanism weighs the corresponding weight of the outer and base materials according to the steel backing type in the mold on the hot press main machine. The feeder separates and weighs the outer and base materials through the dual hoppers, and accurately feeds them to the feeder through the first and second discharge hopper groups.

[0020] Further optimized, the feeder includes a small truss mechanism, a material receiving and leveling mechanism, a turntable mechanism, a plurality of material movers and a plurality of pre-pressing heads, the material receiving and leveling mechanism and the turntable mechanism are arranged in parallel, and the small truss mechanism is located above the two and extends in the direction in which the two are parallel;

[0021] The material mover corresponds to the pre-pressing head one by one; the material mover is provided with a plurality of profiling boxes for loading friction materials, and the pre-pressing head is provided with profiling pressing plates corresponding to the profiling boxes, and the profiling pressing plates flatten the friction materials in the profiling boxes;

[0022] The material receiving and leveling mechanism is provided with the material shifter for receiving the friction materials in the first and second discharging hopper groups and leveling the friction materials therein;

[0023] The turntable mechanism is divided into several stations for placing the material mover and the pre-pressing head respectively, and the pre-pressing head is located under the material mover;

[0024] The small truss mechanism is provided with a material mover gripper and a pre-pressing head gripper; the material mover gripper transfers the material mover back and forth between the turntable mechanism and the material receiving and leveling mechanism; the pre-pressing head gripper moves the pre-pressing head on the turntable mechanism to the contoured material box on the material receiving and leveling mechanism, and flattens the friction material inside, and then returns it to the turntable mechanism.

[0025] The contoured material box of the material transfer device and the contoured pressing plate of the pre-pressing head are respectively matched with the contours of the mold cavity. The outer material and the base material are vibrated and pre-pressed to form flat layered materials.

[0026] According to a further optimization solution, the hydraulic station platform includes two hydraulic stations arranged on a frame, the two hydraulic stations respectively corresponding to their own hot pressing main unit groups, and the hydraulic stations supply oil to the hot pressing main unit through servo motor control.

[0027] The two hydraulic stations are mounted overhead on a frame. The space beneath the hydraulic station platform can be used for equipment maintenance and a channel for turntable changeovers, fully utilizing the floor space. The oil supply to the hot press is controlled by a servo motor, which is energy-efficient, environmentally friendly, and quiet.

[0028] Further optimizing the solution, the main truss is provided with two movable Z-axis mechanisms, which move between the hot pressing mainframes and can be raised and lowered;

[0029] The finished product gripper and the cleaning mechanism are respectively installed on the two movable Z-axis mechanisms.

[0030] The two mobile Z-axis mechanisms respectively drive the finished product gripper and the cleaning mechanism to switch and move between each hot pressing host to realize their corresponding functions.

[0031] Further optimizing the solution, the cleaning mechanism includes a cleaning component, a moving component, a negative pressure dust removal component and a spraying component;

[0032] The cleaning assembly is provided with a sealed dust collection cover, a dust collection pipe, a motor and at least one cleaning brush, wherein the dust collection pipe is connected to the interior of the sealed dust collection cover, the motor is located outside the sealed dust collection cover, the cleaning brush is located inside the sealed dust collection cover, and the motor drives the cleaning brush to rotate;

[0033] The moving assembly is provided with a guide rail slider and a driving member, the cleaning assembly is connected to the slider of the guide rail slider, and the driving member drives the cleaning assembly to translate along the guide rail of the guide rail slider on the mold surface;

[0034] The negative pressure dust removal assembly is fixedly arranged at a position around the mold, and is provided with a dust suction seat and a dust suction switch. When working, the dust suction pipe is automatically sealed and connected to the dust suction seat and the dust suction switch is triggered;

[0035] The spraying assembly includes an automatic spray head arranged on the side of the cleaning assembly, and the automatic spray head sprays a release agent into the mold cavity.

[0036] This cleaning mechanism utilizes a cleaning assembly, negative pressure dust removal assembly, and spraying assembly to simultaneously complete vacuuming, cleaning, and spraying operations, shortening process cycles. The mobile assembly expands the mold cleaning coverage area. A motor-driven cleaning brush removes reactant residue and friction material from the mold in a relatively sealed negative pressure environment, simultaneously cleaning and removing dust to minimize dust generation. An automatic nozzle sprays release agent into the mold cavity, ensuring smooth, damage-free release of the brake pad from the mold after pressing.

[0037] According to a further optimization solution, the cleaning mechanism also includes an auxiliary cleaning component, which is provided with a plate brush to clean the waste that is not sucked away into the waste collection device on the side of the mold, and the plate brush is arranged on the outside of the sealed dust cover.

[0038] After the cleaning component sucks away the main friction powder and reactants, some waste that is too large to be sucked away is swept by the brush of the auxiliary cleaning component into the waste collection device on the side of the mold.

[0039] Further optimized, the finished product gripper includes a rotating cylinder and a plurality of steel back suction positions, the spacing of the plurality of steel back suction positions is consistent with the spacing of the mold cavity, and is connected to the rotating cylinder and driven to rotate by the rotating cylinder;

[0040] The finished product gripper places the pressed brake pad onto the finished product unloading platform.

[0041] Further optimized, the finished product unloading platform includes a linear module, a material receiving mechanism and a plurality of parallel belt lines, and the linear module drives the material receiving mechanism to move between the material receiving position and the corresponding belt line buffer position;

[0042] The material receiving mechanism is provided with a first material receiving position, a second material receiving position and a material transfer push rod. The first material receiving position and the second material receiving position are arranged in parallel front and back, and the first material receiving position is close to the belt line; the material transfer push rod pushes the product of the second material receiving position to the first material receiving position when there is no product at the first material receiving position;

[0043] The first material receiving position is provided with a flipping mechanism and a pushing mechanism. The flipping mechanism drives the first material receiving position to rotate 90 degrees to place the product vertically, and the pushing mechanism pushes the vertically placed product to the belt line buffer.

[0044] Each belt line of the finished product unloading platform is responsible for caching the brake pads produced by a hot pressing host. The linear module drives the material receiving mechanism to receive the finished brake pads from the finished product gripper and sort them to the corresponding belt line for cache according to the model.

[0045] The brake pads at the first receiving position are flipped 90° by the flipping mechanism and then pushed onto the belt line by the pushing mechanism. The brake pads are flipped 90° and placed vertically to save buffer space.

[0046] Further optimizing the solution, the steel back feeding platform is provided with a steel back grabbing mechanism, a steel back positioning mechanism and two turntables;

[0047] Each of the turntables is provided with a plurality of steel back silos and a set of jacking mechanisms. The steel back silos are filled with corresponding types of steel backs. The turntable is rotated to select the required steel back silo, and the jacking mechanism lifts up the selected steel back silo to facilitate the grabbing of the steel backs.

[0048] The steel back positioning mechanism is provided with a plurality of steel back placement positions, the spacing between which matches the spacing of the raw material grippers of the robot;

[0049] The steel back grabbing mechanism grabs the steel back in the steel back hopper and moves it to the steel back placement position. After several of the steel back placement positions are filled and the steel back positioning mechanism performs secondary positioning, the raw material gripper waits for the raw material to be grabbed and placed in the mold of the hot pressing host.

[0050] According to a further optimization scheme, each of the hot pressing mainframes includes a plurality of molds and a hot pressing master cylinder; the molds correspond to the hot pressing master cylinders one by one, the brake pads are pressed in the molds, and the hot pressing master cylinders are interconnected during the pressing process;

[0051] Each hot pressing main unit is equipped with a synchronous motor and a mold changing guide rail. The synchronous motor controls the synchronous exhaust of several hot pressing main cylinders, and the mold changing guide rail changes the mold without stopping the entire line.

[0052] During the brake pad pressing process, each hot press master cylinder is connected to each other. When connected, the pressing force on each mold product is the same. This ensures that when the weight of the material added to the four molds is slightly different, the compression amount of the product corresponding to each master cylinder is also inconsistent to ensure the consistency of the density of each mold product.

[0053] The mold changing guide rail allows the mold to be changed without stopping the entire line, achieving rapid changeover production.

[0054] According to a further optimized solution, each of the hot pressing mainframes includes four molds, and each group of the hot pressing mainframes includes four hot pressing mainframes;

[0055] The raw material gripper of the robot is provided with four gripping positions, and the spacing between the four gripping positions is consistent with the spacing between the four molds.

[0056] The brake pad hot press automated production line can produce up to eight types of brake pads simultaneously, greatly improving the freedom of production scheduling and production efficiency.

[0057] Compared with the prior art, the present invention has the following technical advantages:

[0058] 1. The brake pad hot press automated production line uses a robot to feed friction materials and steel backing to all hot press machines, with high production efficiency and reliability;

[0059] 2. The mold cleaning adopts negative pressure vacuuming, which improves the environmental quality of the production line and reduces the impact of dust on workers' health;

[0060] 3. The hydraulic station oil supply is driven by a servo motor, which is low noise and energy-saving;

[0061] 4. The hot pressing machine adopts mold changing guide rail to quickly change the mold, so as to achieve rapid mold change without stopping the production line;

[0062] 5. All hot pressing machines are equipped with corresponding steel back feeding, friction material feeding and finished product off-line mechanisms, which can meet the production line's simultaneous production of up to eight types of brake pads, greatly improving the freedom of production scheduling and production efficiency;

[0063] 6. The friction material is prepared in the material box through the feeder, and the base material and the outer material are processed in layers, which greatly shortens the auxiliary machine operation time of the hot pressing main machine and improves the performance quality of the product;

[0064] 7. The entire production line is fully automated, and no manual intervention is required during the production process, saving labor costs;

[0065] 8. Each main machine has four hot pressing cylinders that independently correspond to the mold product pressing. During pressing, the oil inlets of the hot pressing cylinders can be connected together to form proportional pressing, ensuring consistent product density and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 This is a three-dimensional diagram of a specific embodiment of the brake pad hot press automated production line of the present invention;

[0067] Figure 2 yes Figure 1 The main view;

[0068] Figure 3 yes Figure 2 Left view of;

[0069] Figure 4 yes Figure 2 A top view of

[0070] Figure 5 yes Figure 1 A three-dimensional diagram of the middle feeder;

[0071] Figure 6 yes Figure 1 A three-dimensional diagram of the middle feeder;

[0072] Figure 7 yes Figure 1 A three-dimensional view of the hydraulic station platform;

[0073] Figure 8 yes Figure 1 A perspective view of the middle main truss;

[0074] Figure 9 yes Figure 1 A three-dimensional image of the finished product gripper;

[0075] Figure 10 yes Figure 1 A three-dimensional diagram of the cleaning mechanism;

[0076] Figure 11 yes Figure 10 A stereogram from another perspective;

[0077] Figure 12 yes Figure 1 A three-dimensional diagram of the unloading platform for finished products;

[0078] Figure 13 yes Figure 12 A partial three-dimensional view of the first and second material receiving positions;

[0079] Figure 14 yes Figure 1 A three-dimensional view of the feeding platform of Zhonggangbei;

[0080] Figure 15 yes Figure 14 A three-dimensional diagram of the steel back grabbing mechanism;

[0081] Figure 16 yes Figure 15 A stereogram from another perspective;

[0082] Figure 17 yes Figure 1 A three-dimensional image of the robot;

[0083] Figure 18 yes Figure 1 A three-dimensional diagram of the hot press main unit;

[0084] Figure 19 yes Figure 18 A stereogram from another perspective.

[0085] In the figure: hot pressing main unit 10, hot pressing main unit 100, mold 110, upper mold 111, middle mold 112, mold core 123, hot pressing main cylinder 120, synchronous motor 130, mold changing guide rail 140, heating module 150, mold moving cylinder 160, demoulding cylinder 170, and mold sealing cylinder 180;

[0086] Robot 200, raw material gripper 210;

[0087] Feeder 300, silo mechanism 310, first discharge hopper group 320, second discharge hopper group 330;

[0088] Feeder 400, small truss mechanism 410, material transfer gripper 411, pre-pressing head gripper 412, material receiving and leveling mechanism 420, turntable mechanism 430, material transferer 440, contoured material box 441, pre-pressing head 450;

[0089] Finished product unloading platform 500, linear module 510, material receiving mechanism 520, first material receiving position 521, second material receiving position 522, material transfer push rod 523, flip mechanism 524, flip cylinder 524a, flip bearing 524b, material pushing mechanism 525, material pushing cylinder 525a, support plate 525b, rodless cylinder 526, belt line 530;

[0090] Main truss 600, mobile Z-axis mechanism 610;

[0091] Finished product gripper 700, rotary cylinder 710, steel back suction position 720;

[0092] Cleaning mechanism 800, cleaning assembly 810, sealed dust cover 811, dust collection pipe 812, motor 813, cleaning brush 814, moving assembly 820, guide rail slider 821, driving member 822, negative pressure dust removal assembly 830, dust collection base 831, dust collection switch 832, spraying assembly 840, automatic spray head 841, auxiliary cleaning assembly 850, scrubbing brush 851;

[0093] Steel back feeding platform 900, steel back grabbing mechanism 910, gripper fixing seat 911, guide rail 912, first slide block 913, second slide block 914, first suction position 915, second suction position 916, driving element 917, intermediate push block 918, intermediate pull rod 919, movable pull plate 91a, intermediate limiting mechanism 91b, lifting assembly 91c, steel back positioning mechanism 920, steel back placement position 921, turntable 930, steel back silo 931, lifting mechanism 932;

[0094] Hydraulic station platform A00, frame A10, hydraulic station A20;

[0095] Main electrical box B00. DETAILED DESCRIPTION

[0096] The present invention will be described in further detail below with reference to the embodiments in the accompanying drawings.

[0097] like Figures 1 to 19 As shown, a specific embodiment of the brake pad hot press automated production line of the present invention.

[0098] like Figure 1 、 Figure 2 and Figure 4 As shown, the brake pad hot press automated production line of this embodiment includes two sets of hot press mainframe groups 10 arranged opposite to each other, and each set of hot press mainframe groups 10 is respectively provided with four parallel hot press mainframes 100;

[0099] A robot 200 is provided in the middle position between the two hot pressing main units 10 , and the robot 200 has a raw material gripper 210 ;

[0100] Each hot press main unit 10 is provided with a charging machine 300 and a feeding machine 400 at one end, and a finished product unloading platform 500 at the other end. A main truss 600 is provided on the upper part. The main truss 600 is provided with a finished product gripper 700 and a cleaning mechanism 800 that can move horizontally and rise and fall between the hot press main units 100; a steel back feeding platform 900 is provided between the two finished product unloading platforms 500;

[0101] The feeder 300 automatically weighs the friction material and outputs it to the feeder 400; the feeder 400 receives the friction material, vibrates and flattens it, and then provides it to the robot 200 for grasping;

[0102] The robot 200 uses its material gripper 210 to suck the steel back from the steel back feeding platform 900 onto the mold 110 of the hot press mainframe 100. The material gripper 210 then drops the friction material provided by the feeder 400 into the mold cavity of the mold 110 of the hot press mainframe 100. The hot press mainframe 100 presses the steel back and friction material into brake pads.

[0103] The finished product gripper 700 moves the pressed brake pads to the finished product unloading platform 500, the finished product unloading platform 500 sorts and caches the brake pads, and the cleaning mechanism 800 cleans the mold 110 that has removed the brake pads.

[0104] A main electrical box B00 is provided on each side of the two finished product unloading platforms 500. A control system is provided in the main electrical box B00 to control the automated operation of each device on the production line.

[0105] Each hot pressing main unit 100 of the two groups of hot pressing main units 10 of the brake pad hot pressing machine automated production line uses a robot 200 to realize the supply of raw materials, automatically providing steel backing and friction materials; then the finished product is output through the finished product gripper 700 on the main truss 600, and the final pressed brake pad is sorted and cached on the finished product unloading platform 500; the cleaning mechanism 800 on the main truss 600 cleans the mold 110 and continues with the next round of product pressing.

[0106] This automated production line realizes unmanned production of multiple hot presses throughout the entire process through modular collaborative design including the robot 200 and the main truss 600, supporting the parallel production of multiple models of brake pads; the cleaning mechanism 800 eliminates dust hazards in the production process, ensuring an environmentally friendly and pollution-free working environment; multiple hot press hosts 100 continuously press products, significantly increasing production capacity, improving work efficiency, reducing product costs, and alleviating the labor intensity of staff.

[0107] like Figure 1 and Figure 3 As shown, the brake pad hot press automated production line also includes a hydraulic station platform A00, which supplies oil to the hot press main unit 100. The hydraulic station platform A00 is located between the two feeders 300. The hydraulic station platform A00 is located between the two feeders 300, making the entire production line compact and making rational use of floor space.

[0108] like Figure 5 As shown, the feeder 300 is provided with two hopper mechanisms 310 for automatic feeding, which respectively place the outer material and the base material of the friction material;

[0109] The two silo mechanisms 310 weigh the outer fabric and base material according to product requirements and output them to the first discharging hopper group 320 and the second discharging hopper group 330 .

[0110] The hopper mechanism 310 weighs the corresponding weights of the top and base materials according to the steel backing type in the upper mold 111 of the hot press main body 100. The feeder 300 separates and weighs the top and base materials through the dual hoppers, and accurately feeds the materials to the feeder 400 through the first and second discharge hopper groups 320 and 330.

[0111] like Figure 6 As shown, the feeder 400 includes a small truss mechanism 410, a material receiving and leveling mechanism 420, a turntable mechanism 430, four material movers 440, and four pre-pressing heads 450. The material receiving and leveling mechanism 420 and the turntable mechanism 430 are arranged in parallel, and the small truss mechanism 410 is located above the two and extends in the direction in which the two are parallel.

[0112] The material mover 440 corresponds to the pre-pressing head 450 one by one; the material mover 440 is provided with four profiling material boxes 441 for loading friction materials, and the pre-pressing head 450 is provided with profiling pressure plates corresponding to the profiling material boxes 441, and the profiling pressure plates flatten the friction materials in the profiling material boxes 441;

[0113] The material receiving and leveling mechanism 420 is provided with a material shifter 440 to receive the friction materials in the first and second discharging hopper groups 320 and 330 and level the friction materials therein;

[0114] The turntable mechanism 430 is divided into four stations, each of which is used to place a material mover 440 and a pre-pressing head 450. The pre-pressing head 450 is located below the material mover 440.

[0115] The small truss mechanism 410 is provided with a material transfer gripper 411 and a pre-pressing head gripper 412; the material transfer gripper 411 transfers the material transferer 440 back and forth between the turntable mechanism 430 and the material receiving and leveling mechanism 420; the pre-pressing head gripper 412 moves the pre-pressing head 450 on the turntable mechanism 430 to the contoured material box 441 on the material receiving and leveling mechanism 420, and flattens the friction material inside, and then returns it to the turntable mechanism 430.

[0116] The contoured material box 441 of the material mover 440 and the contoured pressing plate of the pre-pressing head 450 are respectively matched with the contours of the cavity of the mold 110, and the outer material and the base material are vibrated and pre-pressed to form a flat layered material.

[0117] like Figure 7 As shown, the hydraulic station platform A00 includes two hydraulic stations A20 arranged on the frame A10. The two hydraulic stations A20 correspond to their respective hot pressing main unit groups 10. The hydraulic stations A20 control the oil supply to the hot pressing main unit 100 through the servo motor 813.

[0118] Two hydraulic stations A20 are mounted overhead on the frame A10. The space beneath the hydraulic station platform A00 serves as maintenance space for the equipment and a changeover channel for the turntable 930, effectively utilizing the floor space. Servo motor 813 controls the oil supply to the hot press mainframe 100, ensuring energy conservation, environmental protection, and low noise.

[0119] like Figure 8 As shown, the main truss 600 is provided with two movable Z-axis mechanisms 610, which move between the hot pressing mainframes 100 and can be raised and lowered;

[0120] The finished product gripper 700 and the cleaning mechanism 800 are respectively installed on the two movable Z-axis mechanisms 610.

[0121] The two mobile Z-axis mechanisms 610 respectively drive the finished product gripper 700 and the cleaning mechanism 800 to switch and move between the various hot pressing mainframes 100 to realize their corresponding functions.

[0122] like Figure 10 and Figure 11 As shown, the cleaning mechanism 800 includes a cleaning component 810, a moving component 820, a negative pressure dust removal component 830 and a spraying component 840;

[0123] The cleaning assembly 810 includes a sealed dust cover 811, a dust collection tube 812, a motor 813, and two cleaning brushes 814. The dust collection tube 812 is connected to the interior of the sealed dust cover 811. The motor 813 is located outside the sealed dust cover 811. The cleaning brushes 814 are located inside the sealed dust cover 811. The motor 813 drives the two cleaning brushes 814 to rotate through a synchronous belt and synchronous wheel mechanism.

[0124] The moving assembly 820 is provided with a guide rail slider 821 and a driving member 822. The cleaning assembly 810 is connected to the slider of the guide rail slider 821. The driving member 822 drives the cleaning assembly 810 to translate along the guide rail 912 of the guide rail slider 821 on the surface of the mold 110.

[0125] The negative pressure dust removal assembly 830 is fixedly installed at a position around the mold 110, and is provided with a dust suction seat 831 and a dust suction switch 832. When in operation, the dust suction pipe 812 automatically seals and connects to the dust suction seat 831 and triggers the dust suction switch 832;

[0126] The spraying assembly 840 includes an automatic spray head 841 disposed on the side of the cleaning assembly 810 , and the automatic spray head 841 sprays a release agent into the cavity of the mold 110 .

[0127] The cleaning mechanism 800, utilizing a cleaning assembly 810, a negative pressure dust removal assembly 830, and a spraying assembly 840, simultaneously completes vacuuming, cleaning, and spraying operations, shortening process cycles. The moving assembly 820 expands the cleaning coverage of the mold 110. A motor 813 drives a cleaning brush 814 to clean reactant residue and friction material from the mold 110 in a relatively sealed negative pressure environment, achieving simultaneous cleaning and dust removal to minimize dust generation. An automatic spray nozzle 841 sprays a release agent onto the mold 110 cavity, ensuring smooth, damage-free release of the brake pad from the mold 110 after pressing.

[0128] like Figure 10 and Figure 11 As shown, the cleaning mechanism 800 also includes an auxiliary cleaning component 850, which is provided with a plate brush 851 to clean the waste that is not sucked away into the waste collection device on the side of the mold 110. The plate brush 851 is arranged on the outside of the sealed dust cover 811.

[0129] After the cleaning component 810 sucks away the main friction powder and reactants, some waste materials that are too large to be sucked away are cleaned by the brush 851 of the auxiliary cleaning component 850 into the waste collection device on the side of the mold 110.

[0130] like Figure 9 As shown, the finished product gripper 700 includes a rotating cylinder 710 and four steel back suction positions 720. The spacing between the four steel back suction positions 720 is consistent with the cavity spacing of the mold 110, and they are connected to the rotating cylinder 710 and driven to rotate by the rotating cylinder 710; each steel back suction position 720 is composed of six electromagnets, and each electromagnet is provided with a buffer spring, which is compatible with the suction of steel backs with different convex point positions; the finished product gripper 700 puts the pressed brake pads onto the finished product unloading platform 500.

[0131] like Figure 12 and Figure 13 As shown, the finished product unloading platform 500 includes a linear module 510, a material receiving mechanism 520 and four parallel belt lines 530. The linear module 510 drives the material receiving mechanism 520 to move between the material receiving position and the corresponding belt line 530 buffer position;

[0132] The material receiving mechanism 520 includes a first material receiving position 521, a second material receiving position 522, and a material transfer push rod 523. The first material receiving position 521 and the second material receiving position 522 are arranged in parallel front and back, with the first material receiving position 521 being close to the belt line 530. The material transfer push rod 523 pushes the product from the second material receiving position 522 to the first material receiving position 521 when there is no product at the first material receiving position 521.

[0133] The first material receiving position 521 is provided with a turning mechanism 524 and a pushing mechanism 525. The turning mechanism 524 drives the first material receiving position 521 to rotate 90 degrees to place the product upright, and the pushing mechanism 525 pushes the upright product to the belt line 530 for buffering.

[0134] The turning mechanism 524 includes a turning cylinder 524a and two turning bearings 524b. Both ends of the first material receiving position 521 are connected to the turning bearings 524b respectively. The turning cylinder 524a drives the first material receiving position 521 to rotate 90° around the turning bearings 524b.

[0135] The pushing mechanism 525 includes a pushing cylinder 525a and a support plate 525b. The support plate 525b is arranged at the end of the first receiving position 521 to limit and support the product during the product flipping process to prevent the product from falling; the pushing cylinder 525a pushes the vertically placed product to the belt line 530.

[0136] The material receiving mechanism 520 is further provided with a rodless cylinder 526, which drives the material moving push rod 523 to move back and forth.

[0137] Each belt line 530 of the finished product unloading platform 500 is responsible for caching the brake pads produced by a hot pressing host 100. The linear module 510 drives the material receiving mechanism 520 to receive the finished brake pads from the finished product gripper 700, and sorts them according to the model to the corresponding belt line 530 for cache.

[0138] The brake pad at the first receiving position 521 is turned 90° by the turning mechanism 524 and then pushed onto the belt line 530 by the pushing mechanism 525. The brake pad is turned 90° and placed vertically to save buffer space.

[0139] like Figure 1 and Figure 14 As shown, the steel back feeding platform 900 is provided with a steel back grabbing mechanism 910, a steel back positioning mechanism 920 and two turntables 930;

[0140] Each turntable 930 is provided with a plurality of steel back silos 931 and a set of lifting mechanisms 932. The steel back silos 931 are filled with corresponding types of steel backs. The turntable 930 rotates to select the required steel back silo 931, and the lifting mechanism 932 lifts the selected steel back silo 931 to facilitate the grabbing of the steel backs.

[0141] The steel back positioning mechanism 920 is provided with four steel back placement positions 921 , the spacing between which matches the spacing of the raw material grippers 210 of the robot 200 ;

[0142] The steel back grabbing mechanism 910 grabs the steel back in the steel back hopper 931 and moves it to the steel back placement position 921. After the four steel back placement positions 921 are filled and the steel back positioning mechanism 920 performs secondary positioning, it waits for the raw material gripper 210 to grab it and place it in the mold 110 of the hot pressing main unit 100.

[0143] like Figure 15 and Figure 16 As shown, the steel back grabbing mechanism 910 includes a gripper fixing seat 911, a guide rail 912 is provided below the gripper fixing seat 911, a first slider 913 and a second slider 914 are provided on the guide rail 912, a first suction position 915 is provided on the first slider 913, and a second suction position 916 is provided on the second slider 914;

[0144] The gripper fixing seat 911 is provided with a driving element 917 connected to the first slider 913 and driving it to move back and forth along the guide rail 912;

[0145] The first slider 913 is provided with an intermediate push block 918 and an intermediate pull rod 919, and the second slider 914 is provided with a movable pull plate 91a; the intermediate pull rod 919 movably passes through the movable pull plate 91a, and the end of the intermediate pull rod 919 is limited by the movable pull plate 91a;

[0146] An intermediate limiting mechanism 91b is provided in the middle of the gripper fixing seat 911 to limit the movement of the second slider 914;

[0147] The first slider 913 moves in one direction, and pushes the second slider 914 to one terminal position through the intermediate push block 918 to determine the minimum distance between the two; the first slider 913 moves in the opposite direction, and pulls the second slider 914 to another terminal position by moving the pull plate 91a to determine the maximum distance between the two, and the intermediate limit mechanism 91b determines the position of the second slider 914.

[0148] like Figure 15 As shown, the driving element 917 is a rodless cylinder. The rodless cylinder is small in size and easy to install and use.

[0149] The steel back gripper mechanism can grab two steel backs from the steel back hopper 931 with a small spacing in the steel back hopper 931 of the turntable 930, and then increase the spacing to the required spacing and place them in the steel back positioning mechanism 920. The servo motor in the steel back positioning mechanism 920 drives the V-shaped clamp to limit and complete the secondary positioning, thereby achieving the purpose of grabbing various types of steel backs to the positioning mechanism according to needs in a simple structure and low-cost manner.

[0150] The minimum distance between the first slider 913 and the second slider 914 of the steel back gripping mechanism is the distance between two steel backs grabbed from the steel back hopper 931, and the maximum distance between the first slider 913 and the second slider 914 is the distance in the steel back positioning mechanism 920. The distance between the two steel backs in the positioning mechanism is matched by controlling the length of the middle pull rod 919 and adjusting the position of the middle limit mechanism 91b. The structure is simple, the cost is low, and the positioning accuracy is high.

[0151] like Figure 16As shown, the steel back gripper mechanism also includes a lifting assembly 91c, which is connected to the gripper holder 911. The lifting assembly 91c drives the gripper holder 911 to move up and down. The lifting assembly 91c includes a cylinder, and the gripper holder 911 is connected to the piston rod end of the cylinder. The cylinder realizes the up and down movement of the gripper holder 911, resulting in a simple structure and easy installation and use.

[0152] like Figure 17 As shown, the robot 200 has a raw material gripper 210. One end of the raw material gripper 210 grabs the four steel backs on the steel back positioning mechanism 920 of the steel back feeding platform 900 and places them into the mold 110 of the hot pressing main unit 100; the other end of the raw material gripper 210 grabs the material transfer device 440 that has been loaded with friction material in the turntable mechanism 430 of the feeder 400, and puts the friction material therein into the cavity of the mold 110 of the hot pressing main unit 100.

[0153] like Figure 18 and Figure 19 As shown, each hot pressing main unit 100 includes four molds 110 and a hot pressing master cylinder 120; the molds 110 correspond to the hot pressing master cylinders 120 one by one, and the brake pads are pressed in the molds 110. During the pressing process, the four hot pressing master cylinders 120 are connected to each other;

[0154] The mold 110 is divided into an upper mold 111, a middle mold 112 and a core mold 123, each of which is equipped with a heating module 150;

[0155] Each hot press main unit 100 is equipped with a synchronous motor 130 and a mold changing guide rail 140. The synchronous motor 130 controls the synchronous exhaust of the four hot press main cylinders 120. The mold changing guide rail 140 allows the mold 110 to be changed without stopping the entire line.

[0156] Each hot pressing mainframe 100 further includes a mold shifting cylinder 160 , a demolding cylinder 170 and two mold sealing cylinders 180 .

[0157] During the brake pad pressing process, each hot pressing master cylinder 120 is connected together. When in the connected state, the pressing force on each mold 110 product is the same. This ensures that when the weight of the material added to the four molds 110 is slightly different, the compression amount of the product corresponding to each mold 110 by each master cylinder is also inconsistent to ensure the consistency of the density of each mold product.

[0158] The mold changing guide rail 140 can replace the mold 110 without stopping the entire line, thereby realizing rapid mold change production.

[0159] like Figure 17 and Figure 18 As shown, the material gripper 210 of the robot 200 is provided with four gripping positions, and the distance between the four gripping positions is consistent with the distance between the four molds 110 .

[0160] The brake pad hot press automated production line can produce up to eight types of brake pads simultaneously, greatly improving the freedom of production scheduling and production efficiency.

[0161] The working process of the brake pad hot press automated production line is as follows:

[0162] When production starts, the hot press main unit 100 first moves the middle mold 112 and the mold core 123 outside the hot press main unit 100 and heats all the molds 110 to the temperature required for production;

[0163] The feeder 300 calls out the corresponding friction material formula according to the brake pad model in the production schedule, and weighs the top material and base material and puts them into the first discharge hopper group 320 and the second discharge group respectively;

[0164] At the same time, the small truss mechanism 410 on the feeder 400 extracts the material transferor 440 to the material receiving and leveling mechanism 420 through the material transferor gripper 411. The material transferor 440 receives the friction material in the hopper group of the feeder 300. The small truss mechanism 410 then extracts the pre-pressing head 450 through the pre-pressing head gripper 412. After the material transferor 440 receives the fabric in the friction material and level it, the pre-pressing head 450 is used to flatten the fabric in the material transferor 440. Then, the material transferor 440 receives the base material and level it, and then level it again with the pre-pressing head 450. This ensures that the fabric and base material in the friction material are in a flat and layered state in the contoured material box 441.

[0165] After receiving the friction material, the small truss mechanism 410 places the material transfer device 440 and the pre-pressing head 450 back onto the turntable mechanism 430, waiting for the robot 200 to grab it.

[0166] Also operating simultaneously is the steel back feeding platform 900. Also according to the production schedule, the steel back gripper mechanism picks up the steel back from the steel back hopper 931 on the turntable 930, first undergoes color detection, and then places it into the steel back positioning mechanism 920. The steel back positioning mechanism 920 performs a precise secondary positioning on the steel back so that it can be picked up by the robot 200.

[0167] After the steel back of the steel back feeding platform 900 is positioned and the material mover 440 of the turntable mechanism 430 on the feeder 400 is ready with the friction material, the robot 200 uses the material gripper 210 to first suck up the steel back, then takes it to the material mover 440 and moves it to the mold 110 of the hot press main machine 100 responsible for producing the brake pad of that model;

[0168] If the mold 110 has a steel backing from the previous round of production, it will be sucked by the finished product gripper 700 to the finished product unloading platform 500 for sorting and buffering, and then the mold 110 on the hot press main body 100 will be cleaned by the cleaning mechanism 800. After all this is done, the robot 200 can drop the friction material in the transfer device 440 into the cavity of the middle mold 112 of the mold 110. After the material feeding is completed, the transfer device 440 will be placed back on the turntable mechanism 430 of the feeder 400;

[0169] While the robot 200 puts the material transfer device 440 back, the cleaning mechanism 800 cleans the friction material on the upper surface of the middle mold 112 that may have been spilled during the feeding process. Finally, the robot 200 places the steel back on the middle mold 112 and checks its position to ensure that the steel back is placed correctly.

[0170] At this point, the robot 200 completes its task and returns to its origin position;

[0171] After ensuring that the friction material and steel backing are properly placed in the mold 110, the mold transfer cylinder 160 of the hot press main unit 100 moves the middle mold 112 and mold core 123 into the hot press main unit 100, and the mold sealing cylinder 180 then fits them together with the upper mold 111. The hot press main cylinder 120 pushes the mold core 123 to pressurize and maintain the friction material and steel backing, and during this period, the exhaust operation is carried out according to the production process requirements of the brake pad.

[0172] After holding the pressure for the set time, the hot pressing main cylinder 120 and the demoulding cylinder 170 retreat, and the mold moving cylinder 160 pushes the middle mold 112, the mold core 123 and the product out of the hot pressing main machine 100. After being pushed to the position, the demoulding cylinder 170 lifts the mold core 123, separates the finished brake pad from the mold 110, and then waits for the next round of production.

[0173] This automated brake pad hot press production line, through modular collaborative design, enables fully unmanned production across multiple hot presses. It supports the parallel production of multiple brake pad models, eliminating dust hazards in the production process. It also addresses the issue of brake pad density consistency and improves product quality. Furthermore, it significantly increases production capacity and reduces product costs.

[0174] In summary, the present invention, as described in the specification and illustrations, has been manufactured into actual samples and tested multiple times. The test results show that the invention can achieve its intended purpose and its practicality is beyond doubt. The above embodiments are only used to facilitate the description of the content of the invention and are not intended to be formally limited thereto. Any equivalent embodiment made by a person with common knowledge in the relevant technical field and making partial changes or modifications to the technical content disclosed in the invention without departing from the scope of the technical features and similar features of the present invention, falls within the scope of protection of the present invention.

Claims

1. An automated production line for a brake pad hot press, characterized by: It comprises two groups of hot-pressing mainframe units (10) arranged opposite to each other, each group of the hot-pressing mainframe units (10) being provided with a plurality of parallel hot-pressing mainframe units (100); A robot (200) is provided at a middle position between the two groups of hot pressing mainframe units (10), and the robot (200) has a raw material gripper (210); Each of the hot pressing main unit (10) is provided with a charging machine (300) and a feeding machine (400) at one end, and a finished product unloading platform (500) at the other end, and a main truss (600) is provided on the upper part. The main truss (600) is provided with a finished product gripper (700) and a cleaning mechanism (800) that can move horizontally and lift between the hot pressing main units (100); a steel back feeding platform (900) is provided between the two finished product unloading platforms (500); The feeder (300) automatically weighs the friction material and outputs it to the feeder (400); the feeder (400) receives the friction material, vibrates and flattens it, and then provides it to the robot (200) for grabbing; The robot (200) sucks the steel back on the steel back feeding platform (900) onto the mold (110) of the hot pressing main machine (100) through its raw material gripper (210), and then the raw material gripper (210) throws the friction material provided by the feeder (400) into the mold cavity (110) of the hot pressing main machine (100); the hot pressing main machine (100) presses the steel back and the friction material into a brake pad; The finished product gripper (700) moves the pressed brake pads to the finished product unloading platform (500), the finished product unloading platform (500) sorts and caches the brake pads, and the cleaning mechanism (800) cleans the mold (110) that has removed the brake pads; A main electrical box (B00) is provided on each side of the two finished product unloading platforms (500), and a control system is provided in the main electrical box (B00) to control the automated operation of each device on the production line.

2. The automatic production line of brake pad hot press according to claim 1 is characterized in that: It also includes a hydraulic station platform (A00) which supplies oil to the hot pressing main machine (100), and the hydraulic station platform (A00) is located between the two charging machines (300).

3. The automatic production line of brake pad hot press according to claim 1 or 2, characterized in that: The feeder (300) is provided with two automatic feeding silo mechanisms (310), which respectively place the outer material and the base material of the friction material; The two silo mechanisms (310) weigh the fabric and base material according to product requirements and output them to the first discharge hopper group (320) and the second discharge hopper group (330).

4. The automatic production line of brake pad hot press according to claim 3 is characterized in that: The feeder (400) comprises a small truss mechanism (410), a material receiving and leveling mechanism (420), a turntable mechanism (430), a plurality of material movers (440) and a plurality of pre-pressing heads (450), wherein the material receiving and leveling mechanism (420) and the turntable mechanism (430) are arranged in parallel, and the small truss mechanism (410) is located above the two and extends in the direction in which the two are arranged in parallel; The material mover (440) corresponds to the pre-pressing head (450) in a one-to-one manner; the material mover (440) is provided with a plurality of profiling boxes (441) for loading friction materials; the pre-pressing head (450) is provided with profiling pressing plates corresponding to the profiling boxes (441); the profiling pressing plates flatten the friction materials in the profiling boxes (441); The material receiving and leveling mechanism (420) is provided with the material shifter (440) for receiving the friction material in the first discharge hopper group (320) and the second discharge hopper group (330), and leveling the friction material therein; The turntable mechanism (430) is divided into a plurality of stations for placing the material mover (440) and the pre-pressing head (450), respectively. The pre-pressing head (450) is located below the material mover (440); The small truss mechanism (410) is provided with a material mover gripper (411) and a pre-pressing head gripper (412); the material mover gripper (411) transfers the material mover (440) back and forth between the turntable mechanism (430) and the material receiving and leveling mechanism (420); the pre-pressing head gripper (412) moves the pre-pressing head (450) on the turntable mechanism (430) into the contoured material box (441) on the material receiving and leveling mechanism (420), flattens the friction material therein, and then returns the pre-pressing head to the turntable mechanism (430).

5. The automatic production line of brake pad hot press according to claim 2 is characterized in that: The hydraulic station platform (A00) comprises two hydraulic stations (A20) arranged on a frame (A10), the two hydraulic stations (A20) corresponding to respective hot pressing main unit groups (10), and the hydraulic stations (A20) supply oil to the hot pressing main unit (100) through control of a servo motor (813).

6. The automatic production line of brake pad hot press according to claim 1 is characterized in that: The main truss (600) is provided with two movable Z-axis mechanisms (610), which are movable between the hot pressing mainframe (100) and can be raised and lowered; The finished product gripper (700) and the cleaning mechanism (800) are respectively mounted on the two movable Z-axis mechanisms (610).

7. The automatic production line of brake pad hot press according to claim 1 is characterized in that: The cleaning mechanism (800) comprises a cleaning component (810), a moving component (820), a negative pressure dust removal component (830), and a spraying component (840); The cleaning component (810) is provided with a sealed dust cover (811), a dust collection pipe (812), a motor (813) and at least one cleaning brush (814); the dust collection pipe (812) is connected to the interior of the sealed dust cover (811); the motor (813) is located outside the sealed dust cover (811); the cleaning brush (814) is located inside the sealed dust cover (811); and the motor (813) drives the cleaning brush (814) to rotate; The moving assembly (820) is provided with a guide rail slider (821) and a driving member (822); the cleaning assembly (810) is connected to the slider of the guide rail slider (821); and the driving member (822) drives the cleaning assembly (810) to translate along the guide rail (912) of the guide rail slider (821) on the surface of the mold (110); The negative pressure dust removal component (830) is fixedly arranged at a position around the mold (110), and is provided with a dust suction seat (831) and a dust suction switch (832). When in operation, the dust suction pipe (812) automatically seals and connects to the dust suction seat (831) and triggers the dust suction switch (832); The spraying assembly (840) comprises an automatic spray head (841) arranged on the side of the cleaning assembly (810), and the automatic spray head (841) sprays a release agent into the cavity of the mold (110).

8. The automatic production line of brake pad hot press according to claim 7 is characterized in that: The cleaning mechanism (800) further comprises an auxiliary cleaning assembly (850), wherein the auxiliary cleaning assembly (850) is provided with a plate brush (851) for cleaning the waste that is not sucked away into a waste collection device on the side of the mold (110), and the plate brush (851) is arranged on the outside of the sealed dust cover (811).

9. The automatic production line of brake pad hot press according to claim 1 is characterized in that: The finished product gripper (700) includes a rotating cylinder (710) and a plurality of steel back suction positions (720), wherein the spacing between the plurality of steel back suction positions (720) is consistent with the spacing between the cavities of the mold (110), and the plurality of steel back suction positions (720) are connected to the rotating cylinder (710) and driven to rotate by the rotating cylinder (710); The finished product gripper (700) places the pressed brake pad onto the finished product unloading platform (500).

10. The automatic production line of brake pad hot press according to claim 1 is characterized in that: The finished product unloading platform (500) comprises a linear module (510), a material receiving mechanism (520) and a plurality of parallel belt lines (530), wherein the linear module (510) drives the material receiving mechanism (520) to move between a material receiving position and a corresponding buffer position of the belt line (530); The material receiving mechanism (520) is provided with a first material receiving position (521), a second material receiving position (522) and a material transfer push rod (523), wherein the first material receiving position (521) and the second material receiving position (522) are arranged in parallel front and back, and the first material receiving position (521) is close to the belt line (530); the material transfer push rod (523) pushes the product at the second material receiving position (522) to the first material receiving position (521) when there is no product at the first material receiving position (521); The first receiving position (521) is provided with a turning mechanism (524) and a pushing mechanism (525), wherein the turning mechanism (524) drives the first receiving position (521) to rotate 90 degrees to place the product vertically, and the pushing mechanism (525) pushes the vertically placed product to the belt line (530) for buffering.

11. The automatic production line of brake pad hot press according to claim 1, characterized in that: The steel back feeding platform (900) is provided with a steel back grabbing mechanism (910), a steel back positioning mechanism (920) and two rotating disks (930); Each of the turntables (930) is provided with a plurality of steel back silos (931) and a set of lifting mechanisms (932). The steel back silos (931) are filled with steel backs of corresponding types. The turntable (930) is rotated to select the required steel back silo (931), and the lifting mechanism (932) lifts the selected steel back silo (931) to facilitate the grabbing of the steel backs. The steel back positioning mechanism (920) is provided with a plurality of steel back placement positions (921), the spacing between which matches the spacing of the raw material grippers (210) of the robot (200); The steel back grabbing mechanism (910) grabs the steel back in the steel back silo (931) and moves it to the steel back placement position (921). After a number of the steel back placement positions (921) are filled and repositioned by the steel back positioning mechanism (920), the raw material gripper (210) is ready to grab the raw material and place it in the mold (110) of the hot pressing main unit (100).

12. The automatic production line of brake pad hot press according to claim 1, characterized in that: Each of the hot pressing main machines (100) comprises a plurality of molds (110) and a hot pressing master cylinder (120); the molds (110) correspond to the hot pressing master cylinders (120) on a one-to-one basis, the brake pads are pressed in the molds (110), and the plurality of hot pressing master cylinders (120) are interconnected during the pressing process; Each hot pressing main machine (100) is equipped with a synchronous motor (130) and a mold changing guide rail (140). The synchronous motor (130) controls the synchronous exhaust of a plurality of hot pressing main cylinders (120). The mold changing guide rail (140) changes the mold (110) without stopping the entire line.

13. The automatic production line of brake pad hot press according to claim 12, characterized in that: Each of the hot pressing mainframes (100) includes four molds (110), and each group of the hot pressing mainframes (10) includes four hot pressing mainframes (100); The raw material gripper (210) of the robot (200) is provided with four gripping positions, and the spacing between the four gripping positions is consistent with the spacing between the four molds (110).

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