Discharging system for drum type friction plate production

Abstract

The invention provides a blanking system for drum type friction plate production, which comprises a bracket and a material barrel, and a material cavity is horizontally formed in the middle of the material barrel; a material column is rotationally arranged in each material cavity, and a material clamping groove is formed in the side wall of each material column; the integrated rod movably penetrates through all the material barrels, and a discharging motor is arranged on the support. The top of each material barrel is communicated with the bottom of a feeding barrel, the bottom of each material barrel is communicated with the top of a discharging barrel, and the discharging motor is used for driving the material clamping groove to be communicated with the feeding barrel or the discharging barrel; the bottoms of all the discharging barrels are communicated with the top of the collecting hopper, and the bottom of the collecting hopper is in an opening shape. A material receiving hopper is arranged at the top of the material mixing barrel in a communicating manner, is in a cover shape with an upward opening and is used for receiving materials at the bottom of the material collecting hopper into the material mixing barrel; the stirring mechanism is positioned in the mixing barrel; the discharging mechanism is used for controlling opening and closing of the bottom of the mixing barrel. According to the discharging system for drum type friction plate production, the using effect is better.

Description

Technical Field

[0001] The invention belongs to the technical field of production of drum-type friction plates, and relates to a material feeding system for producing drum-type friction plates. Background Art

[0002] Friction pads are also called brake pads. In the braking system of a car, brake pads are the most critical safety parts. The quality of all braking effects is determined by the brake pads. The most common friction pads currently include disc brake pads and drum brake pads.

[0003] Among them, the common drum friction plate is usually mixed with a variety of powdered raw materials, and then hot-pressed into a prototype, and then the prototype is processed by drilling, grinding, chamfering, etc., so that the final product is the same shape and quality. The raw materials of the drum friction plate on the market usually include adhesives, fibers, anti-wear lubricants, grinding materials, abrasive agents, fillers, etc. During production, it is necessary to first weigh each raw material according to the mass and pour it into the mixer for mixing, and then transfer it to the raw material bucket. The worker uses a scale to take the required mass of the mixed powder, and then sends the mixed powder to the corresponding equipment for heating and pressurization into a prototype. However, due to the large variety of raw materials and the large difference in mass ratio between different raw materials, it is easy to cause uneven mixing of raw materials during actual mixing, and even lead to unqualified quality of the friction plate, and the use effect is poor. Summary of the invention

[0004] The purpose of the present invention is to provide a material feeding system for producing drum friction plates, aiming to solve the problem of poor use effect.

[0005] In order to solve the above technical problems, the present invention provides a material feeding system for producing a drum friction plate, comprising a bracket and:

[0006] A plurality of material barrels, wherein a cylindrical material cavity is horizontally opened in the middle of each material barrel;

[0007] A material column, wherein a material column is rotatably disposed in each of the material cavities, the outer wall of the material column is movably fitted to the inner wall of the material cavity, and a material slot is provided on the side wall of the material column, and the capacities of different material slots are equal or different;

[0008] An integrated rod, the integrated rod movably passes through all the material barrels and is coaxially connected to the centers of all the material columns, and a feeding motor for driving the integrated rod to rotate is provided on the bracket;

[0009] Incoming material barrel and unloading material barrel, the top of each material barrel is communicated with the bottom of an incoming material barrel, and the bottom is communicated with the top of an unloading material barrel, and the unloading material motor is used to drive the material slot to communicate with the incoming material barrel or the unloading material barrel;

[0010] A collecting hopper, the bottoms of all the lower barrels are connected to the top of the collecting hopper, and the bottom of the collecting hopper is open;

[0011] A mixing barrel, wherein the top of the mixing barrel is connected to a receiving hopper, and the receiving hopper is in the shape of a cover with an opening upward, and is used to receive the material at the bottom of the collecting hopper into the mixing barrel;

[0012] A stirring mechanism, wherein the stirring mechanism is located in the mixing barrel;

[0013] A discharging mechanism is used to control the opening and closing of the bottom of the mixing barrel.

[0014] Furthermore, there are two material slots, which are located on both sides of the center of the material column. When one material slot is connected to the incoming material barrel, the other material slot is connected to the unloading material barrel.

[0015] Furthermore, a plurality of first pressure relief plates and second pressure relief plates are obliquely arranged on the inner wall of the incoming material barrel, both sides of the first pressure relief plate and the second pressure relief plate are connected to the inner wall of the incoming material barrel, the top of the first pressure relief plate is connected to the inner wall of the X side of the incoming material barrel, and a set distance is provided between the bottom and the inner wall of the -X side of the incoming material barrel, the top of the second pressure relief plate is connected to the inner wall of the -X side of the incoming material barrel, and a set distance is provided between the bottom and the inner wall of the X side of the incoming material barrel, the first pressure relief plate and the second pressure relief plate are arranged in a staggered manner, and the projections of the first pressure relief plate and the second pressure relief plate in the vertical direction overlap.

[0016] Furthermore, a support plate is horizontally arranged on the bracket, an annular limiting groove is opened on the top of the support plate, a cylindrical cylindrical member is horizontally rotatably arranged on the top of the support plate, a plurality of mixing barrels are evenly arranged on the cylindrical member in a circumferential distribution, the top of the mixing barrel is at the same height as the top of the cylindrical member, and the bottom is lower than the bottom of the cylindrical member, the mixing barrel is in a hood shape with an opening downward, and the bottom of the mixing barrel is movably fitted to the bottom of the limiting groove, and the inner side and the outer side of the bottom of the mixing barrel are movably fitted to the vertical inner wall of the limiting groove;

[0017] The discharging mechanism includes a discharging port opened on the support plate, the inner diameter of the discharging port is equal to the inner diameter of the bottom of the mixing barrel, the discharging port is communicated with the limiting groove, a guide barrel is obliquely arranged at the bottom of the support plate, the top of the guide barrel is communicated with the bottom of the discharging port, the bottom is located outside the support plate, and the projection of the discharging port in the vertical direction is located within the projection of the top of the guide barrel in the vertical direction, a driving mechanism for driving the cylindrical member to rotate is provided on the support plate, and whenever the discharging port is coaxial with one of the mixing barrels, the receiving hopper on the adjacent mixing barrel is located below the collecting hopper.

[0018] Furthermore, six mixing barrels are arranged on the cylindrical member, and the material receiving hopper includes a material transmitting portion which is in the shape of a trumpet with an opening facing upward and a material receiving portion which is connected to the top of the material transmitting portion, and the cross-sections of the inner and outer sides of the material receiving portion are both arc-shaped, and the cross-sections of the inner and outer sides of the six material receiving portions are all circular, and the side walls of adjacent material receiving portions are in a fitted shape.

[0019] Furthermore, the cylindrical member is hollow, a stabilizing column is provided in the middle part of the bottom end of the cylindrical member, a stabilizing groove matching the stabilizing column is opened on the support plate, a plurality of first drag reducing balls are rotatably provided on the top of the support plate, the first drag reducing balls movably abut against the bottom of the cylindrical member, an annular stabilizing ring is provided on the top of the support plate, a plurality of second drag reducing balls are rotatably provided on the inner wall of the stabilizing ring, the second drag reducing balls movably abut against the outer wall of the cylindrical member, a consolidation frame is also provided on the bracket, a consolidation ring is horizontally provided on the consolidation frame, and the consolidation ring movably fits against the outer wall of the top of the cylindrical member.

[0020] Further, the stirring mechanism comprises a stirring motor vertically fixedly arranged on the top of the mixing barrel, a driving wheel is arranged on the output shaft of the stirring motor, a stirring shaft is vertically arranged at the middle of the top of the mixing barrel, stirring blades are arranged on the outer wall of the stirring shaft, a passive wheel is arranged on the outer wall of the stirring shaft, and transmission parts are arranged on the outer walls of the driving wheel and the passive wheel;

[0021] Six groups of cathode contacts and anode contacts are arranged on the outer wall of the cylindrical member, and each group of cathode contacts and anode contacts are connected to a stirring motor. The consolidation ring is made of insulating material, and six groups of cathode heads and anode heads are arranged on the consolidation ring, and each cathode head is fitted with a cathode contact, and each anode contact is fitted with an anode contact.

[0022] Furthermore, an end of the integrated rod away from the unloading motor is provided with an active bevel gear;

[0023] The driving mechanism includes a transmission rod vertically arranged on the bracket, the transmission rod is rotatably connected to the bracket, a passive bevel gear meshing with the active bevel gear is horizontally arranged on the top of the transmission rod, and an incomplete gear is horizontally arranged on the bottom, the incomplete gear includes a smooth part and a gear part, a plurality of linkage teeth are annularly distributed on the outer wall of the cylindrical member, and the incomplete gear includes a first state, a second state, a third state and a fourth state that appear in a cycle in sequence;

[0024] When the incomplete gear is in the first state, the material slot opening downward is the target slot, the material slot opening upward is the relative slot, the target slot is in communication with the discharge barrel, the relative slot is in communication with the incoming barrel, the receiving hopper at the nth station is located below the collecting hopper, the bottom of the mixing hopper at the n+1th station is in communication with the discharge port, and the upstream end of the gear part is in a starting node of a meshing state with the linkage tooth body;

[0025] When the incomplete gear is in the second state, the target slot and the relative slot are both in a horizontal state, and the target slot and the relative slot are both in contact with the inner wall of the material barrel, the downstream end of the gear portion is in a terminating node of a meshing state with the linkage tooth body, the receiving hopper at the original n+1 station is located at the bottom of the receiving hopper, and the bottom of the mixing hopper at the original n+2 station is connected to the discharge port;

[0026] When the incomplete gear is in the third state, the target slot is in an upwardly opening state, the relative slot is in a downwardly opening state, the upstream end of the gear portion is in a starting node of a meshing state with the linkage tooth body, and the receiving hopper at the original n+1th station is located at the bottom of the receiving hopper;

[0027] When the incomplete gear is in the fourth state, the target slot and the relative slot are both in a horizontal state, the downstream end of the gear portion is in a terminating node of a meshing state with the linkage tooth body, and the receiving hopper at the original n+2 station is located below the receiving hopper;

[0028] Where n is a natural number greater than 0.

[0029] Furthermore, a locking cylinder is vertically arranged on the bracket, a lifting hole is vertically opened at the bottom of the locking cylinder, an elastic member which is continuously in a compressed state is arranged in the lifting hole, a lifting rod is vertically arranged at the bottom of the elastic member, the cross section of the lifting hole is rectangular, the cross section of the lifting rod matches the lifting hole, a drag reduction bead is rotatably arranged at the bottom of the lifting rod, a locking arm is horizontally arranged on the middle side wall of the lifting rod, a locking portion is arranged at the bottom of the free end of the locking arm, and the bottom of the locking portion is pointed;

[0030] An annular locking ring is provided on the outer wall of the cylindrical member, and six locking grooves are provided on the locking ring for the locking portion to be inserted into. The shape of the locking groove matches the shape of the locking portion, and both sides of the top of the locking groove are chamfered or rounded. When the cylindrical member is in a stationary state, the locking portion is engaged with one of the locking grooves or is located above the locking groove;

[0031] The top of the incomplete gear is provided with a top arc, a bottom arc and a transition arc, all of which have arc-shaped cross sections. The projections of the top arc, the bottom arc and the transition arc in the vertical direction are circular. The bottom of the drag-reducing bead flexibly contacts the top arc, the bottom arc or the transition arc. The tops of the top arc and the bottom arc are both horizontal planes, and the top of the top arc is higher than the top of the bottom arc. The top of the transition arc is inclined, and the bottom of the transition arc is at the same height as the top of the bottom arc, and the top is at the same height as the top of the top arc.

[0032] When the drag reducing bead abuts against the upstream end of the top arc, the incomplete gear is in the first state or the third state, and the locking portion is located above the corresponding locking groove;

[0033] When the drag-reducing bead abuts against the upstream end of the bottom arc, the incomplete gear is in the second state or the fourth state, and the locking portion is engaged in the corresponding locking groove.

[0034] Furthermore, an adjustment hole is provided on the inner wall of the material slot, and an adjustment plate is also included. An adjustment bolt is movably passed through the adjustment plate and is threadedly connected to the adjustment hole. The inner side and both ends of the adjustment plate are both fitted to the inner wall of the material slot, and the two ends are movably fitted to the inner wall of the corresponding material barrel. Each of the material slots is equipped with several groups of adjustment plates, and the thickness of different adjustment plates varies.

[0035] Compared with the prior art, the present invention provides a feeding system for the production of drum friction plates. First, the top of each incoming material barrel is preferably connected with a raw material bin of different materials, so that the material in the raw material bin can naturally slide into the incoming material barrel; at the same time, according to the different proportions of the materials, the materials in different raw material bins can be the same or different. For example, if the proportion of a certain component is high, several incoming material barrels can be connected with the bin of the material according to the actual situation; but there is only one kind of material in a raw material bin. When unloading, the raw materials first enter the corresponding material slots under the action of gravity; then the unloading motor drives the integrated rod to rotate, and the integrated rod drives all the material columns to rotate. When rotating at a certain angle (such as 45°), the material columns will block the bottom of the barrel to prevent subsequent materials from falling; when the integrated rod drives the material slot to rotate 180 degrees, the materials in the material slots will slide into the collecting hopper, and fall into the receiving hopper below through the collecting hopper, and are introduced into the mixing barrel through the receiving hopper; at the same time, the stirring mechanism in the mixing barrel stirs different materials. After the stirring is completed, the discharging mechanism at the bottom opens, and the mixed materials fall out. Workers use containers (such as common basins, etc.) to receive the fallen raw materials, and add the raw materials to the friction plate pressing and molding equipment (existing conventional equipment) for pressing and molding.

[0036] Since the capacity of the material slot is fixed, the quality of the material dropped from the discharge barrel each time is also fixed (the friction plate will be polished during the production process, so it is not required to be very precise; at the same time, the "fixed" here does not mean absolutely fixed, but roughly similar). In this way, the proportion of materials in each mixing barrel is appropriate and of high quality; after stirring by the stirring mechanism, the balance of each part of the material can be well guaranteed. Even if the quality of some materials is very small, it can be ensured that this part of the material is included in the material dropped each time, thus ensuring the quality of the friction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the present invention;

[0038] Figure 2 yes Figure 1 A magnified view of part A;

[0039] Figure 3 is a cross-sectional view of the present invention;

[0040] Figure 4 yes Figure 3 A magnified view of part B;

[0041] Figure 5 yes Figure 3 Enlarged view of part C;

[0042] Figure 6 yes Figure 3 A magnified view of part D in the middle;

[0043] Figure 7 is a cross-sectional view of a material column in the present invention;

[0044] Figure 8 It is a structural schematic diagram of the support plate part of the present invention;

[0045] Fig. 9 It is a structural schematic diagram of the material barrel part in the present invention;

[0046] Fig.10 It is a schematic structural diagram of the cylindrical part of the present invention;

[0047] Fig.11 It is a structural schematic diagram of the receiving hopper in the present invention;

[0048] Fig.12 It is a structural schematic diagram of the material column part in the present invention;

[0049] Fig.13 It is a schematic structural diagram of the incomplete gear part in the present invention.

[0050] Among them, 1. bracket; 2. material barrel; 3. material column; 4. material slot; 5. integrated rod; 6. material discharge motor; 7. incoming barrel; 8. material discharge barrel; 9. collecting hopper; 10. mixing barrel; 11. receiving hopper; 11a. material transmission part; 11b. material receiving part; 12. first pressure relief plate; 13. second pressure relief plate; 14. support plate; 15. limit groove; 16. cylindrical part; 17. discharge port; 18. material guide barrel; 19. stabilizing column; 20. stabilizing groove; 21. first drag reduction ball; 22. stabilizing ring; 23. second drag reduction ball; 24. consolidation frame; 25. consolidation ring; 26. stirring motor machine; 27, driving wheel; 28, stirring shaft; 29, stirring blade; 30, driven wheel; 31, transmission member; 32, cathode contact; 33, anode contact; 34, active bevel gear; 35, transmission rod; 36, passive bevel gear; 37, incomplete gear; 37a, smooth part; 37b, gear part; 38, linkage gear body; 39, locking cylinder; 40, elastic part; 41, lifting rod; 42, drag reduction bead; 43, locking arm; 44, locking part; 45, locking ring; 46, locking groove; 47, top arc; 48, bottom arc; 49, transition arc; 50, adjustment plate; 51, adjustment bolt. DETAILED DESCRIPTION

[0051] A material feeding system for producing drum friction plates, such as Figures 1 to 13 As shown, it includes a bracket 1 and the following components arranged on the bracket 1:

[0052] A plurality of material barrels 2, wherein a cylindrical material cavity is horizontally opened in the middle of the material barrel 2;

[0053] A material column 3, wherein each of the material cavities is rotatably provided with a material column 3, wherein the outer wall of the material column 3 is movably fitted to the inner wall of the material cavity, and a material slot 4 is provided on the side wall of the material column 3, and the capacities of different material slots 4 are equal or different;

[0054] An integrated rod 5, the integrated rod 5 movably passes through all the material barrels 2 and is coaxially connected to the centers of all the material columns 3, and a feeding motor 6 for driving the integrated rod 5 to rotate is provided on the bracket 1;

[0055] Incoming barrel 7 and unloading barrel 8, the top of each material barrel 2 is communicated with the bottom of an incoming barrel 7, and the bottom is communicated with the top of an unloading barrel 8, and the unloading motor 6 is used to drive the material card slot 4 to communicate with the incoming barrel 7 or the unloading barrel 8;

[0056] A collecting hopper 9, the bottoms of all the lower barrels 8 are connected to the top of the collecting hopper 9, and the bottom of the collecting hopper 9 is open;

[0057] A mixing barrel 10, wherein a receiving hopper 11 is provided on the top of the mixing barrel 10, and the receiving hopper 11 is in the shape of a cover with an opening upward, and is used to receive the material at the bottom of the collecting hopper 9 into the mixing barrel 10;

[0058] A stirring mechanism, the stirring mechanism is located in the mixing barrel 10;

[0059] The discharging mechanism is used to control the opening and closing of the bottom of the mixing barrel 10.

[0060] There are two material slots 4 , which are located on both sides of the center of the material column 3 . When one material slot 4 is connected to the incoming material barrel 7 , the other material slot 4 is connected to the unloading material barrel 8 .

[0061] The inner wall of the incoming barrel 7 is obliquely provided with a plurality of first pressure relief plates 12 and second pressure relief plates 13, both sides of the first pressure relief plates 12 and the second pressure relief plates 13 are connected to the inner wall of the incoming barrel 7, the top of the first pressure relief plate 12 is connected to the inner wall of the X side of the incoming barrel 7, and a set distance is provided between the bottom and the inner wall of the -X side of the incoming barrel 7, the top of the second pressure relief plate 13 is connected to the inner wall of the -X side of the incoming barrel 7, and a set distance is provided between the bottom and the inner wall of the X side of the incoming barrel 7, the first pressure relief plates 12 and the second pressure relief plates 13 are arranged in a staggered manner, and the projections of the first pressure relief plates 12 and the second pressure relief plates 13 in the vertical direction overlap.

[0062] The bracket 1 is also horizontally provided with a support plate 14, the top of which is provided with an annular limiting groove 15, the top of which is horizontally provided with a cylindrical cylindrical member 16, a plurality of mixing barrels 10 are evenly and circumferentially distributed on the cylindrical member 16, the top of which is at the same height as the top of the cylindrical member 16, and the bottom is lower than the bottom of the cylindrical member 16, the mixing barrel 10 is in the shape of a cover with an opening downward, and the bottom of the mixing barrel 10 is movably fitted to the bottom of the limiting groove 15, and the inner side and the outer side of the bottom of the mixing barrel 10 are movably fitted to the vertical inner wall of the limiting groove 15;

[0063] The discharging mechanism includes a discharging port 17 opened on the support plate 14, the inner diameter of the discharging port 17 is equal to the inner diameter of the bottom of the mixing barrel 10, the discharging port 17 is communicated with the limiting groove 15, and a guide barrel 18 is obliquely arranged at the bottom of the support plate 14, the top of the guide barrel 18 is communicated with the bottom of the discharging port 17, the bottom is located outside the support plate 14, and the projection of the discharging port 17 in the vertical direction is located within the projection of the top of the guide barrel 18 in the vertical direction. A driving mechanism for driving the cylindrical member 16 to rotate is provided on the support plate 14, and whenever the discharging port 17 is coaxial with one of the mixing barrels 10, the receiving hopper 11 on the adjacent mixing barrel 10 is located below the collecting hopper 9.

[0064] Six mixing barrels 10 are arranged on the cylindrical member 16, and the receiving hopper 11 includes a trumpet-shaped material transferring portion 11a opening upward and a material receiving portion 11b connected to the top of the material transferring portion 11a, the inner and outer cross-sections of the material receiving portion 11b are both arc-shaped, the inner and outer cross-sections of the six material receiving portions 11b are all circular, and the side walls of adjacent material receiving portions 11b are in a fitted shape.

[0065] The cylindrical member 16 is hollow, and a stabilizing column 19 is arranged in the middle of the bottom end of the cylindrical member 16. A stabilizing groove 20 matching the stabilizing column 19 is opened on the support plate 14. A plurality of first drag reducing balls 21 are rotatably arranged on the top of the support plate 14, and the first drag reducing balls 21 are movably in contact with the bottom of the cylindrical member 16. An annular stabilizing ring 22 is arranged on the top of the support plate 14, and a plurality of second drag reducing balls 23 are rotatably arranged on the inner wall of the stabilizing ring 22, and the second drag reducing balls 23 are movably in contact with the outer wall of the cylindrical member 16. A consolidation frame 24 is also arranged on the bracket 1, and a consolidation ring 25 is horizontally arranged on the consolidation frame 24, and the consolidation ring 25 is movably fitted to the outer wall of the top of the cylindrical member 16.

[0066] The stirring mechanism includes a stirring motor 26 vertically fixedly arranged on the top of the mixing barrel 10, a driving wheel 27 is arranged on the output shaft of the stirring motor 26, a stirring shaft 28 is vertically arranged in the middle of the top of the mixing barrel 10, a stirring blade 29 is arranged on the outer wall of the stirring shaft 28, a driven wheel 30 is arranged on the outer wall of the stirring shaft 28, and a transmission member 31 is arranged on the outer walls of the driving wheel 27 and the driven wheel 30;

[0067] Six groups of cathode contacts 32 and anode contacts 33 are arranged on the outer wall of the cylindrical member 16, and each group of the cathode contacts 32 and the anode contacts 33 are connected to one of the stirring motors 26. The consolidation ring 25 is made of insulating material, and six groups of cathode heads and anode heads are arranged on the consolidation ring 25, and each of the cathode heads is fitted with one of the cathode contacts 32, and each of the anode contacts 33 is fitted with one of the anode contacts 33.

[0068] An end of the integrated rod 5 away from the unloading motor 6 is provided with a driving bevel gear 34;

[0069] The driving mechanism includes a transmission rod 35 vertically arranged on the bracket 1, the transmission rod 35 is rotatably connected to the bracket 1, a passive bevel gear 36 meshing with the active bevel gear 34 is horizontally arranged on the top of the transmission rod 35, and an incomplete gear 37 is horizontally arranged on the bottom, the incomplete gear 37 includes a smooth portion 37a and a gear portion 37b, and a plurality of linkage teeth 38 are annularly distributed on the outer wall of the cylindrical member 16, and the incomplete gear 37 includes a first state, a second state, a third state and a fourth state that appear in a cycle in sequence;

[0070] When the incomplete gear 37 is in the first state, the material slot 4 opening downward is the target slot, and the material slot 4 opening upward is the relative slot, the target slot is in communication with the discharge barrel 8, the relative slot is in communication with the incoming barrel 7, the receiving hopper 11 at the nth station is located below the collecting hopper 9, the bottom of the mixing hopper at the n+1th station is in communication with the discharge port 17, and the upstream end of the gear portion 37b is in a starting node of a meshing state with the linkage tooth body 38;

[0071] When the incomplete gear 37 is in the second state, the target slot and the relative slot are both in a horizontal state, and the target slot and the relative slot are both in contact with the inner wall of the material barrel 2, the downstream end of the gear portion 37b is in a terminating node of a meshing state with the linkage tooth body 38, the receiving hopper 11 at the original n+1 station is located at the bottom of the receiving hopper 11, and the bottom of the mixing hopper at the original n+2 station is connected to the discharge port 17;

[0072] When the incomplete gear 37 is in the third state, the target slot is in an upward opening state, the relative slot is in a downward opening state, the upstream end of the gear portion 37b is in a starting node of a meshing state with the linkage tooth body 38, and the receiving hopper 11 at the original n+1th station is located at the bottom of the receiving hopper 11;

[0073] When the incomplete gear 37 is in the fourth state, the target slot and the relative slot are both in a horizontal state, the downstream end of the gear portion 37b is in a terminating node of a meshing state with the linkage tooth body 38, and the receiving hopper 11 at the original n+2 station is located below the receiving hopper 11;

[0074] Where n is a natural number greater than 0.

[0075] The bracket 1 is also vertically provided with a locking cylinder 39, a lifting hole is vertically opened at the bottom of the locking cylinder 39, an elastic member 40 (with a large elastic force, used to quickly drive the lifting rod 41 downward) which is continuously in a compressed state is provided in the lifting hole, a lifting rod 41 is vertically provided at the bottom of the elastic member 40, the cross section of the lifting hole is rectangular, the cross section of the lifting rod 41 matches the lifting hole, a drag reduction bead 42 (used to reduce resistance) is rotatably provided at the bottom of the lifting rod 41, a locking arm 43 is horizontally provided on the middle side wall of the lifting rod 41, a locking portion 44 is provided at the bottom of the free end of the locking arm 43, and the bottom of the locking portion 44 is pointed;

[0076] An annular locking ring 45 is provided on the outer wall of the cylindrical member 16, and six locking grooves 46 for the locking portion 44 to be inserted into are formed on the locking ring 45. The shape of the locking groove 46 matches the shape of the locking portion 44, and both sides of the top of the locking groove 46 are chamfered or rounded (to facilitate the insertion of the locking portion 44). When the cylindrical member 16 is in a stationary state, the locking portion 44 is engaged with one of the locking grooves 46 or is located above the locking groove 46;

[0077] The top of the incomplete gear 37 is provided with a top arc 47, a bottom arc 48 and a transition arc 49, all of which have arc-shaped cross sections. The projections of the top arc 47, the bottom arc 48 and the transition arc 49 in the vertical direction are circular. The bottom of the drag reduction bead 42 movably contacts the top arc 47, the bottom arc 48 or the transition arc 49. The tops of the top arc 47 and the bottom arc 48 are both horizontal planes, and the top of the top arc 47 is higher than the top of the bottom arc 48. The top of the transition arc 49 is inclined, and the bottom of the transition arc 49 is at the same height as the top of the bottom arc 48, and the top is at the same height as the top of the top arc 47.

[0078] When the drag reducing bead 42 abuts against the upstream end of the top arc 47 , the incomplete gear 37 is in the first state or the third state, and the locking portion 44 is located above the corresponding locking groove 46 ;

[0079] When the drag reducing bead 42 abuts against the upstream end of the bottom arc 48 , the incomplete gear 37 is in the second state or the fourth state, and the locking portion 44 is engaged in the corresponding locking groove 46 .

[0080] The inner wall of the material slot 4 is provided with an adjustment hole, and also includes an adjustment plate 50, through which an adjustment bolt 51 threadedly connected to the adjustment hole is movably provided, the inner side and both ends of the adjustment plate 50 are both fitted to the inner wall of the material slot 4, and the two ends are movably fitted to the inner wall of the corresponding material barrel 2, each of the material slots 4 is equipped with a plurality of groups of the adjustment plates 50, and the thickness of different adjustment plates 50 is different.

[0081] The present invention provides a feeding system for the production of drum friction plates. First, the top of each incoming material barrel 7 is preferably connected to a raw material bin of different materials, so that the material in the raw material bin can naturally slide into the incoming material barrel 7; at the same time, according to the different proportions of the materials, the materials in different raw material bins can be the same or different. For example, if the proportion of a certain component is high, several incoming material barrels 7 can be connected to the bin of the material according to the actual situation; but there is only one kind of material in a raw material bin. When unloading, first the raw materials enter the corresponding material slots 4 under the action of gravity; then the unloading motor 6 drives the integrated rod 5 to rotate, and the integrated rod 5 drives all the material columns 3 to rotate. When rotating at a certain angle (such as 45°), the material columns 3 will block the bottom of the barrel 7 to prevent subsequent materials from falling; when the integrated rod 5 drives the material slots 4 to rotate 180 degrees, the materials in the material slots 4 will slide into the collecting hopper 9, and fall into the receiving hopper 11 below through the collecting hopper 9, and are introduced into the mixing barrel 10 through the receiving hopper 11; at the same time, the stirring mechanism in the mixing barrel 10 stirs different materials. After the stirring is completed, the discharging mechanism at the bottom opens, and the mixed materials fall out. Workers use containers (such as common basins, etc.) to receive the fallen raw materials, and add the raw materials to the pressing and molding equipment (existing conventional equipment) of the friction plate for pressing and molding.

[0082] Since the capacity of the material slot 4 is fixed, the quality of the material dropped from the discharge barrel 8 each time is also fixed (the friction plate will be polished during the production process, so it is not required to be very precise; at the same time, the "fixed" here does not mean absolutely fixed, but roughly similar), so the proportion of materials in each mixing barrel 10 is appropriate and high-quality; after stirring by the stirring mechanism, the balance of each part of the material can be well guaranteed. Even if the quality of some materials is very small, it can be guaranteed that this part of the material is included in the material dropped each time, thus ensuring the quality of the friction plate.

[0083] Although they are all named material slots 4, the capacities of different material slots 4 are not all equal, but need to be customized according to the actual needs of the materials. For example, if the proportion of a certain material is larger, the capacity of its material slot 4 is larger, or several material slots 4 are used to measure the material.

[0084] The material in the silo falls into the corresponding material barrel 2 through the incoming material barrel 7. Most of the material is powdery, so it has a certain fluidity, but the fluidity is not particularly high. In this way, the first pressure reducing plate 12 and the second pressure reducing plate 13 can support the material and reduce the pressure of the powder on the material column 3, etc., while also preventing too much material from being stuck in the material slot 4.

[0085] When the material slot 4 filled with materials rotates downward, that is, the target slot is connected to the discharge barrel 8, the materials in the target slot fall into the collecting hopper 9 along the discharge barrel 8, and fall into the receiving hopper 11 below through the bottom of the collecting hopper 9, that is, when the incomplete gear 37 is in the first state, the mixing barrel 10 at the nth station is filled with corresponding materials, where n is a natural number, which is 1 in this embodiment; at the same time, in this state, the materials in the mixing barrel 10 at the second station slide directly to the top of the guide barrel 18 through the discharge port 17, and slide out along the guide barrel 18, and the workers use basins and other tools at the bottom of the guide barrel 18 to receive the powder after mixing;

[0086] At this time, the relative slot is filled with powder, and the locking portion 44 is located above the locking slot 46, that is, the cylindrical member 16 can rotate normally;

[0087] After a certain pause, the unloading motor 6 (which is automatically started regularly by program control) drives all material columns 3 to rotate 90 degrees through the integrated rod 5. At this time, a closed space is formed relative to the slot and the inner wall of the material barrel 2, which is filled with powder. The integrated rod 5 also drives the passive bevel gear 36 to rotate 90 degrees, and the passive bevel gear 36 drives the incomplete gear 37 to rotate 90 degrees through the transmission rod 35. In this process, the gear part 37b drives the cylindrical part 16 to rotate 60 degrees through the linkage tooth body 38, and the mixing barrel 10 at the original second station moves to the bottom of the collecting hopper 9; at the same time, the lifting rod 41 has just fallen from the top arc 47 (under the elastic force of the elastic part 40) to the top of the bottom arc 48, and the meshing state of the gear part 37b and the linkage tooth body 38 has just disappeared, so at this time the locking part 44 is inserted into the locking groove 46, which limits the cylindrical part 16 and prevents the cylindrical part 16 and each mixing barrel 10 from rotating; secondly, the mixing barrel 10 at the original second station is located below the collecting hopper 9, waiting for the next drop; and the mixing barrel 10 at the original first station rotates to the next station;

[0088] The unloading motor 6 drives the integrated rod 5 to rotate 90 degrees again (there may be no interval between this drive and the previous drive, and the two states are only for auxiliary explanation, that is, the unloading motor 6 can drive the unloading rod to rotate 180 degrees at a time), at this time, the relative slot opening is downward, and the target slot opening is upward, that is, the material in the relative slot falls into the mixing barrel 10 of the original second station. At the same time, in this process, the bottom of the lifting rod 41 moves from the bottom arc 48 and the transition arc 49 to the top of the top arc 47 through the drag reduction beads 42, waiting for the next rotation of the cylindrical part 16. When the lifting rod 41 moves on the bottom arc 48 and the transition arc 49, the smooth part 37a is opposite to the linkage tooth body 38, so the cylindrical part 16 does not rotate during this process, so the position of each mixing barrel 10 is also stable.

[0089] In summary, the entire material unloading process is as follows: when the material in the bottom material slot 4 is falling downward, the upper material slot 4 is receiving new powder; then when the upper material slot 4 rotates 90 degrees, the integrated rod 5 can drive the cylindrical part 16 and the six mixing barrels 10 to rotate 60 degrees through the active bevel gear 34, the passive bevel gear 36, the incomplete gear 37 and the linkage gear body 38, and make the new empty mixing barrel 10 move to the bottom of the collecting hopper 9 to wait for material reception. After that, the material slot 4 rotates another 90 degrees. At this time, since the smooth portion 37a cannot drive the cylindrical part 16 to rotate, the new empty mixing barrel 10 is still below the collecting hopper 9 waiting for material unloading.

[0090] During the actual material discharge, the receiving portion 11b is relatively large, so it can better receive the material falling from the collecting hopper 9; at the same time, the adjacent receiving portions 11b are connected end to end, so even if residual powder falls from the collecting hopper 9, it can fall into the receiving portion 11b to prevent the material from flying out.

[0091] At the same time, when the material falls into the mixing barrel 10 and the cylindrical member 16 does not rotate, all the cathode contacts 32 are in contact with the cathode head, and all the anode contacts 33 are in contact with the anode head. At the same time, the anode head and the cathode head are both externally connected to a power cord. At this time, the external power cord can energize the stirring motor 26, and the stirring motor 26 drives the driving wheel 27 to rotate. The driving wheel 27 drives the passive wheel 30 to rotate through the transmission member 31. At the same time, the passive wheel 30 drives the stirring shaft 28 and the stirring blade 29 to rotate, thereby stirring and mixing the material in the mixing barrel 10.

[0092] Each consolidation ring 25 has six pairs of cathode heads and anode heads, so that no matter which position the mixing barrel 10 is in, the materials can be stirred when the mixing barrel 10 is not rotating. At the same time, the stirring blades 29 located below the collecting hopper 9 can break up the materials that have just fallen when rotating, which is convenient for the subsequent mixing of materials; secondly, the stirring blades 29 located at the discharge port 17 can help empty the materials when rotating. At the same time, the inside of the mixing barrel 10 also has an auxiliary frame to support the stirring shaft 28, thereby improving the stability of the stirring shaft 28 and extending its service life.

[0093] In another embodiment, the stirring motor 26 is powered by a battery, that is, six or one battery is provided on the cylindrical member 16, which can drive all the stirring motors 26 to rotate, so that the mixing barrel 10 can be stirred regardless of the angle thereof.

[0094] When the cylindrical member 16 rotates, its bottom is supported by the first drag-reducing ball 21, and its side is supported by the second drag-reducing ball 23, so that the position and activity stability of the cylindrical member 16 can be ensured, and the rotation resistance of the cylindrical member 16 can be reduced; similarly, the cylindrical member 16 is in a hollow state, which can also facilitate the rotation of the cylindrical member 16. At the same time, the stabilizing column 19 and the consolidating ring 25 can also improve the position and activity stability of the material barrel 2 and the cylindrical member 16.

[0095] The bottom of the mixing barrel 10 is located in the limiting groove 15, so even if a small amount of powder is spilled from the bottom of the mixing barrel 10, this part of the powder will be driven by the outer wall of the mixing barrel 10 and fall out through the discharge port 17; and the inner and outer sides of the mixing barrel 10 are both in contact with the vertical inner walls of the limiting groove 15, so the mixing barrel 10 has a better cleaning effect on the spilled powder.

[0096] The friction plates of different qualities may have different proportions for different materials. In this case, the capacity of the material slot 4 needs to be adjusted so that the materials falling into the mixing barrel 10 can present the required composition each time. The outer wall of the material barrel 2 is provided with a cover plate (arc-shaped and covering the outer side of the material barrel 2) fixedly connected by bolts. When adjusting, it is only necessary to rotate the material slot 4 by a certain angle, such as 45 degrees, and then remove the bolts and remove the cover plate. At this time, the hole covered by the cover plate is right opposite to the material slot 4, so that the material slot 4 can be operated. Specifically, it is only necessary to remove the adjustment bolt 51 and install a new adjustment plate 50, or select a thicker or thinner adjustment plate 50; after the adjustment plate 50 is fitted in the material slot 4, the adjustment bolt 51 is passed through the adjustment hole and threadedly connected to the material column 3, so that the capacity of the material slot 4 can be adjusted, which is simple and convenient. At the same time, the thickness difference of the adjustment plate 50 can be either small or large, so that friction plates with similar quality and special requirements can be produced in actual production. At the same time, by adjusting the capacity of the material slot 4, the amount of material put down each time can also be changed, so as to produce a larger or smaller friction plate.

[0097] In another embodiment, the bottom of the mixing barrel 10 is provided with a hinged unloading flap (not shown in the figure), and the hinge between the unloading flap and the mixing barrel 10 is located at the upstream end of the bottom of the mixing barrel 10, and the diameter of the discharge port 17 is larger than the diameter of the mixing barrel; when the mixing barrel 10 rotates to the discharge port 17, the unloading flap opens under the action of gravity and the pressure of the powder, so that the powder can automatically fall into the discharge port 17; when the mixing barrel 10 moves away from the discharge port, the unloading flap is affected by the inner wall of the discharge port 17 and flips upward, and seals the bottom of the mixing barrel 10, so that after the subsequent powder falls into the mixing barrel 10, the powder can be better stirred and mixed in the mixing barrel 10, and the spillage of the powder can also be reduced.

Claims

1. A material feeding system for producing drum friction plates, characterized in that: It comprises a support (1) and: A plurality of material barrels (2), wherein a cylindrical material cavity is horizontally opened in the middle of each material barrel (2); A material column (3), wherein each of the material cavities is rotatably provided with a material column (3), the outer wall of the material column (3) is movably fitted to the inner wall of the material cavity, and a material slot (4) is provided on the side wall of the material column (3), and the capacities of different material slots (4) are equal or different; An integrated rod (5), the integrated rod (5) movably passes through all the material barrels (2) and is coaxially connected to the centers of all the material columns (3); a material unloading motor (6) for driving the integrated rod (5) to rotate is provided on the bracket (1); An incoming material cylinder (7) and a down material cylinder (8), the top of each material cylinder (2) is communicated with the bottom of an incoming material cylinder (7), and the bottom is communicated with the top of a down material cylinder (8), and the down material cylinder (6) is used to drive the material chute (4) to communicate with the incoming material cylinder (7) or the down material cylinder (8); A collecting hopper (9), wherein the bottoms of all the lower barrels (8) are connected to the top of the collecting hopper (9), and the bottom of the collecting hopper (9) is open; A mixing barrel (10), wherein the top of the mixing barrel (10) is connected to a receiving hopper (11), and the receiving hopper (11) is in the shape of a cover with an opening facing upward, and is used to receive the material at the bottom of the collecting hopper (9) into the mixing barrel (10); A stirring mechanism, the stirring mechanism being located inside the mixing barrel (10); A discharging mechanism, wherein the discharging mechanism is used to control the opening and closing of the bottom of the mixing barrel (10).

2. A material feeding system for producing drum friction plates according to claim 1, characterized in that: There are two material slots (4), which are located on both sides of the center of the material column (3). When one material slot (4) is connected to the incoming material barrel (7), the other material slot (4) is connected to the unloading material barrel (8).

3. A material feeding system for producing a drum friction plate according to claim 1 or 2, characterized in that: The inner wall of the incoming material barrel (7) is obliquely provided with a plurality of first pressure relief plates (12) and second pressure relief plates (13). Both sides of the first pressure relief plate (12) and the second pressure relief plate (13) are connected to the inner wall of the incoming material barrel (7). The top of the first pressure relief plate (12) is connected to the inner wall of the X side of the incoming material barrel (7), and a set distance is provided between the bottom and the inner wall of the -X side of the incoming material barrel (7). The top of the second pressure relief plate (13) is connected to the inner wall of the -X side of the incoming material barrel (7), and a set distance is provided between the bottom and the inner wall of the X side of the incoming material barrel (7). The first pressure relief plate (12) and the second pressure relief plate (13) are arranged in a staggered manner, and the projections of the first pressure relief plate (12) and the second pressure relief plate (13) in the vertical direction overlap.

4. A material feeding system for producing drum friction plates according to claim 2, characterized in that: A support plate (14) is also horizontally arranged on the bracket (1), and an annular limiting groove (15) is opened on the top of the support plate (14). A cylindrical cylindrical member (16) is horizontally rotatably arranged on the top of the support plate (14), and a plurality of mixing barrels (10) are evenly arranged on the cylindrical member (16) in a circumferential distribution. The top of the mixing barrel (10) is at the same height as the top of the cylindrical member (16), and the bottom is lower than the bottom of the cylindrical member (16). The mixing barrel (10) is in the shape of a cover with an opening facing downward, and the bottom of the mixing barrel (10) is movably fitted to the bottom of the limiting groove (15), and the inner side and the outer side of the bottom of the mixing barrel (10) are movably fitted to the vertical inner wall of the limiting groove (15); The discharging mechanism comprises a discharging port (17) opened on the support plate (14), the inner diameter of the discharging port (17) being equal to the inner diameter of the bottom of the mixing barrel (10), the discharging port (17) being communicated with the limiting groove (15), a guide barrel (18) being obliquely arranged at the bottom of the support plate (14), the top of the guide barrel (18) being communicated with the bottom of the discharging port (17), the bottom being located outside the support plate (14), and the projection of the discharging port (17) in the vertical direction being located within the projection of the top of the guide barrel (18) in the vertical direction, a driving mechanism for driving the cylindrical member (16) to rotate being arranged on the support plate (14), and whenever the discharging port (17) is coaxial with a mixing barrel (10), the receiving hopper (11) on the adjacent mixing barrel (10) is located below the collecting hopper (9).

5. A material feeding system for producing drum friction plates according to claim 4, characterized in that: Six mixing barrels (10) are arranged on the cylindrical member (16), and the receiving hopper (11) includes a material transmitting portion (11a) which is shaped like a trumpet and opens upward, and a material receiving portion (11b) which is connected to the top of the material transmitting portion (11a), and the inner and outer cross-sections of the material receiving portion (11b) are both arc-shaped, and the inner and outer cross-sections of the six material receiving portions (11b) are all circular, and the side walls of adjacent material receiving portions (11b) are in a fitted state.

6. A material feeding system for producing drum friction plates according to claim 5, characterized in that: The cylindrical member (16) is hollow, a stabilizing column (19) is arranged at the middle of the bottom end of the cylindrical member (16), a stabilizing groove (20) matched with the stabilizing column (19) is opened on the support plate (14), a plurality of first drag reducing balls (21) are rotatably arranged on the top of the support plate (14), the first drag reducing balls (21) are movably in contact with the bottom of the cylindrical member (16), an annular stabilizing ring (22) is arranged on the top of the support plate (14), a plurality of second drag reducing balls (23) are rotatably arranged on the inner wall of the stabilizing ring (22), the second drag reducing balls (23) are movably in contact with the outer wall of the cylindrical member (16), and a consolidation frame (24) is also arranged on the bracket (1), a consolidation ring (25) is horizontally arranged on the consolidation frame (24), and the consolidation ring (25) is movably fitted to the outer wall of the top of the cylindrical member (16).

7. A material feeding system for producing drum friction plates according to claim 6, characterized in that: The stirring mechanism comprises a stirring motor (26) vertically fixedly arranged on the top of the mixing barrel (10), a driving wheel (27) is arranged on the output shaft of the stirring motor (26), a stirring shaft (28) is vertically arranged in the middle of the top of the mixing barrel (10), a stirring blade (29) is arranged on the outer wall of the stirring shaft (28), a driven wheel (30) is arranged on the outer wall of the stirring shaft (28), and a transmission member (31) is arranged on the outer walls of the driving wheel (27) and the driven wheel (30); Six groups of cathode contacts (32) and anode contacts (33) are arranged on the outer wall of the cylindrical member (16), and each group of the cathode contacts (32) and the anode contacts (33) are connected to a stirring motor (26). The consolidation ring (25) is made of insulating material, and six groups of cathode heads and anode heads are arranged on the consolidation ring (25), and each cathode head is fitted with a cathode contact (32), and each anode contact (33) is fitted with an anode contact (33).

8. A material feeding system for producing drum friction plates according to claim 7, characterized in that: An active bevel gear (34) is provided at one end of the integrated rod (5) away from the unloading motor (6); The driving mechanism comprises a transmission rod (35) vertically arranged on the bracket (1), the transmission rod (35) being rotatably connected to the bracket (1), a passive bevel tooth (36) meshing with the active bevel tooth (34) being horizontally arranged on the top of the transmission rod (35), an incomplete gear (37) being horizontally arranged on the bottom, the incomplete gear (37) comprising a smooth portion (37a) and a gear portion (37b), a plurality of linkage teeth (38) being annularly distributed on the outer wall of the cylindrical member (16), the incomplete gear (37) comprising a first state, a second state, a third state and a fourth state which appear in sequence and in a cycle; When the incomplete gear (37) is in the first state, the material slot (4) opening downward is the target slot, and the material slot (4) opening upward is the relative slot, the target slot is in communication with the discharge barrel (8), the relative slot is in communication with the incoming barrel (7), the receiving hopper (11) at the nth station is located below the collecting hopper (9), the bottom of the mixing hopper at the n+1th station is in communication with the discharge port (17), and the upstream end of the gear portion (37b) is in a starting node of a meshing state with the linkage tooth body (38); When the incomplete gear (37) is in the second state, the target slot and the relative slot are both in a horizontal state, and the target slot and the relative slot are both in contact with the inner wall of the material barrel (2), the downstream end of the gear portion (37b) is in a meshing state with the linkage tooth body (38) and the terminal node of the receiving hopper (11) at the original n+1 station is located at the bottom of the receiving hopper (11), and the bottom of the mixing hopper at the original n+2 station is in communication with the discharge port (17); When the incomplete gear (37) is in the third state, the target slot is in an upwardly opening state, the relative slot is in a downwardly opening state, the upstream end of the gear portion (37b) is in a starting node of a meshing state with the linkage tooth body (38), and the receiving hopper (11) at the original n+1th station is located at the bottom of the receiving hopper (11); When the incomplete gear (37) is in the fourth state, the target slot and the relative slot are both in a horizontal state, the downstream end of the gear portion (37b) is in a terminating node of a meshing state with the linkage tooth body (38), and the receiving hopper (11) at the original n+2th station is located below the receiving hopper (11); Where n is a natural number greater than 0.

9. A material feeding system for producing drum friction plates according to claim 8, characterized in that: The bracket (1) is also vertically provided with a locking cylinder (39), a lifting hole is vertically opened at the bottom of the locking cylinder (39), an elastic member (40) which is continuously in a compressed state is arranged in the lifting hole, a lifting rod (41) is vertically provided at the bottom of the elastic member (40), the cross section of the lifting hole is rectangular, the cross section of the lifting rod (41) matches the lifting hole, a drag reduction bead (42) is rotatably provided at the bottom of the lifting rod (41), a locking arm (43) is horizontally provided on the middle side wall of the lifting rod (41), a locking portion (44) is provided at the bottom of the free end of the locking arm (43), and the bottom of the locking portion (44) is pointed; An annular locking ring (45) is arranged on the outer wall of the cylindrical member (16), and six locking grooves (46) are provided on the locking ring (45) for the locking portion (44) to be inserted into. The shape of the locking groove (46) matches the shape of the locking portion (44), and both sides of the top of the locking groove (46) are chamfered or rounded. When the cylindrical member (16) is in a stationary state, the locking portion (44) is engaged with one of the locking grooves (46) or is located above the locking groove (46); The top of the incomplete gear (37) is provided with a top arc (47), a bottom arc (48) and a transition arc (49) all of which have arc-shaped cross sections. The projections of the top arc (47), the bottom arc (48) and the transition arc (49) in the vertical direction are circular. The bottom of the drag-reducing bead (42) movably contacts the top arc (47) or the bottom arc (48) or the transition arc (49). The tops of the top arc (47) and the bottom arc (48) are both horizontal planes, and the top of the top arc (47) is higher than the top of the bottom arc (48). The top of the transition arc (49) is inclined, and the bottom of the transition arc (49) is at the same height as the top of the bottom arc (48), and the top is at the same height as the top of the top arc (47). When the drag reducing bead (42) contacts the upstream end of the top arc (47), the incomplete gear (37) is in the first state or the third state, and the locking portion (44) is located above the corresponding locking groove (46); When the drag-reducing bead (42) contacts the upstream end of the bottom arc (48), the incomplete gear (37) is in the second state or the fourth state, and the locking portion (44) is engaged in the corresponding locking groove (46).

10. A material feeding system for producing drum friction plates according to claim 1, characterized in that: The inner wall of the material slot (4) is provided with an adjustment hole, and also includes an adjustment plate (50), and an adjustment bolt (51) is movably passed through the adjustment plate (50) and is threadedly connected to the adjustment hole. The inner side and both ends of the adjustment plate (50) are both in contact with the inner wall of the material slot (4), and the two ends are movably in contact with the inner wall of the corresponding material barrel (2). Each material slot (4) is equipped with a plurality of groups of adjustment plates (50), and the thickness of different adjustment plates (50) varies.

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