CN217226798U

CN217226798U - Friction plate production system of brake pad

Info

Publication number: CN217226798U
Application number: CN202122987595.2U
Authority: CN
Inventors: 张种如; 张玉平; 张种斌
Original assignee: Yancheng Tianchi Auto Fitting Co ltd
Current assignee: Yancheng Tianchi Auto Fitting Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-08-19
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a friction plate production system of a brake pad, which comprises a device shell, a bottom plate, a quantitative batching unit and a hydraulic forming unit; the quantitative batching unit comprises a storage box, a quantitative discharging mechanism and a material receiving driving mechanism; the hydroforming unit includes a press forming structure and a replaceable die. The friction plate production system of the brake pad automatically puts quantitative powder by using the quantitative material putting mechanism, and accurately controls the putting amount of the powder according to the thickness requirement of the brake pad, so that the production efficiency and the quality of the brake friction plate are improved; the material receiving driving mechanism is used for receiving the powder put in by the quantitative material placing mechanism and conveying the powder into the replaceable die, so that automatic filling of the hydraulic forming unit is realized, and the manual investment is reduced, thereby saving the cost; the brake block which is pressed and finished is demoulded by utilizing the pressing and forming structure, so that the requirements of facilitating mould taking and improving the working efficiency of the mould are met.

Description

Friction plate production system of brake pad

Technical Field

The utility model relates to a production system, especially a friction disc production system of brake block.

Background

The brake pad is also called as a brake shoe, in a brake system of an automobile, the brake pad is the most critical safety part, and the quality of all brake effects plays a decisive role, so the brake pad is a protection spirit for people and automobiles. The brake pad is generally composed of a steel plate, a bonding heat insulation layer and a friction block, and in the forming process, punch forming is needed to achieve the needed shape, so that subsequent installation and use are facilitated. In the production process of the existing small-sized factory, the brake pad needs to be manually taken after being subjected to punch forming, and meanwhile, the production of the brake pad of one type can only be completed in one mold groove, so that the purchase cost of the device is increased, and the enterprise cost is increased.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the friction plate production system of the brake pad can meet the requirement of automatic feeding.

The technical scheme is as follows: the utility model provides a friction plate production system of a brake pad, which comprises a device shell, a bottom plate, a quantitative batching unit and a hydraulic forming unit; the quantitative batching unit comprises a storage box, a quantitative discharging mechanism and a material receiving driving mechanism; the hydraulic forming unit comprises a press forming structure and a replaceable die;

the bottom plate is fixed on the bottom surface in the device shell; a storage box mounted at the top inside the device housing; a charging opening communicated with the storage box is arranged on the top surface of the device shell; the quantitative discharging mechanism is installed below the storage box in a communicating mode, and quantitative powder is discharged downwards by the quantitative discharging mechanism according to the requirement; the lower pressing forming structure and the material receiving driving mechanism are arranged on the upper side surface of the bottom plate, the replaceable mould is arranged on the lower pressing forming structure, the material receiving driving mechanism is used for receiving powder put in by the quantitative material feeding mechanism and conveying the powder into the replaceable mould, the lower pressing forming structure is used for pressing and forming the powder in the replaceable mould, and the brake pad is ejected out of the replaceable mould after pressing is finished; a window is arranged on the device shell and used for an operator to take out the pressed brake pad.

Further, the quantitative discharging mechanism comprises a discharging seat, a plurality of partition plates and a plurality of quantitative linear motors; the discharging seat is fixed in the middle of the device shell; the lower side of the storage box is communicated with the upper side surface of the discharging seat through a flexible channel; a plurality of flat slots are horizontally arranged on one vertical side surface of the discharging seat from top to bottom; each partition plate is respectively inserted into each flat slot; a plurality of material receiving holes are vertically arranged on the material placing seat at intervals; a plurality of quantitative plate holes are formed in each partition plate, and each quantitative plate hole corresponds to each material receiving hole; each quantitative linear motor is respectively used for driving each division plate to horizontally move along the flat slot.

Furthermore, a vibrator is arranged on the discharging seat.

Further, the material receiving driving mechanism comprises an auxiliary filling mechanism, a cantilever plate, a translation sliding rail, a translation motor, a translation driving gear and a plurality of material receiving hoppers; the translation sliding rail is fixed on the upper side surface of the bottom plate; the cantilever plate is transversely installed on the translation slide rail in a sliding manner; each receiving hopper is fixed on the cantilever plate; the translation motor is arranged on the translation sliding rail; the translation driving gear is arranged on an output shaft of the translation motor; a translation driving rack meshed with the translation driving gear is transversely arranged on the cantilever plate and used for driving the cantilever plate to move so that each material receiving hopper is respectively positioned below each material receiving hole; the auxiliary filling mechanism is arranged on the cantilever plate, and when each receiving hopper moves to the position above the replaceable mold, the auxiliary filling mechanism releases powder into the replaceable mold.

Furthermore, the auxiliary filling mechanism comprises a filling linear motor and a release plate; a motor moving groove is arranged on the cantilever plate; the filler linear motor is arranged in the motor moving groove; a horizontal slot communicated with the motor moving slot is horizontally arranged in the cantilever plate; the releasing plate is inserted in the horizontal slot and is driven to move along the horizontal slot by the linear motor for filling; a plurality of connecting holes are vertically formed in the cantilever plate, and each connecting hole is communicated with each material receiving hopper; and the release plate is provided with discharge plate holes corresponding to the connecting holes.

Further, the downward pressing and forming structure comprises an upper side extrusion seat, two mounting plates, two lower side hydraulic cylinders, four upper side hydraulic cylinders and a plurality of extrusion columns; the two lower hydraulic cylinders are both arranged on the upper side surface of the bottom plate, and piston rods of the two lower hydraulic cylinders are both vertically upward; the end parts of the piston rods of the two hydraulic cylinders at the lower sides are respectively provided with a driving seat; the two driving seats are respectively fixed on the front side surface and the rear side surface of the upper side extrusion seat; the four upper hydraulic cylinders are respectively and vertically arranged on the left edge and the right edge of the front side surface and the right edge of the rear side surface of the upper extrusion seat, and piston rods of the four upper hydraulic cylinders are all vertically downward; a mounting seat is fixed on the end part of the piston rod of each upper hydraulic cylinder; the two mounting plates are respectively fixed on the two mounting seats on the front side and the two mounting seats on the rear side; the replaceable mould is detachably arranged on the two mounting plates; each extrusion column is vertically fixed on the upper side surface of the bottom plate in an interval mode, and the upper end of each extrusion column extends into the replaceable die.

Further, the replaceable die comprises a die shell, a plurality of extrusion heads and a plurality of limiting orifice plates; a positioning installation groove is transversely arranged on each of the front side surface and the rear side surface of the die shell; the two mounting plates are respectively mounted on the two positioning mounting grooves; a plurality of pore plate limiting grooves are arranged on the upper side surface of the mould shell at intervals; each limiting pore plate is respectively placed in each pore plate limiting groove and used for placing a brake pad back plate; an extrusion hole for receiving powder is formed in the center of the bottom of each hole plate limiting groove; the upper end of each extrusion column extends into the corresponding extrusion hole respectively; each extrusion head is respectively arranged on the extending-in end of each extrusion column through an extrusion head mounting bolt; an extrusion plate which is vertically matched with the corresponding extrusion hole in a sliding manner is arranged on the upper side surface of each extrusion head, and the vertical side surface of each extrusion plate is tightly attached to the hole wall of each extrusion hole; the two mounting seats are respectively mounted on the left side surface and the right side surface of the die shell through die mounting bolts; and an unlocking hole communicated with one vertical side wall of the die shell is formed in the hole wall of the lower side of each extrusion hole and used for dismounting the extrusion head mounting bolt.

Furthermore, a convex ring used for blocking the extrusion plate from moving downwards is arranged at the lower hole of each extrusion hole.

Compared with the prior art, the utility model, its beneficial effect is: quantitative powder is automatically fed by a quantitative feeding mechanism, and the feeding amount of the powder is accurately controlled according to the thickness requirement of the brake pad, so that the production efficiency and the quality of the brake friction plate are improved; the material receiving driving mechanism is used for receiving the powder put in by the quantitative material placing mechanism and conveying the powder into the replaceable die, so that automatic filling of the hydraulic forming unit is realized, and the manual input is reduced, thereby saving the cost; the brake pad after being pressed is demoulded by the aid of the downward-pressing forming structure, so that the requirements for facilitating mould taking and improving working efficiency are met.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic structural view of the hydroforming unit of the present invention;

fig. 3 is a sectional view of the discharge seat of the present invention;

fig. 4 is a sectional view of the mold shell of the present invention;

fig. 5 is a cross-sectional view of the cantilever plate of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1-5, the utility model provides a friction disc production system of brake block includes: the device comprises a device shell 1, a bottom plate 2, a dosing unit and a hydraulic forming unit; the quantitative batching unit comprises a storage box 7, a quantitative discharging mechanism and a material receiving driving mechanism; the hydraulic forming unit comprises a press forming structure and a replaceable die;

the bottom plate 2 is fixed on the bottom surface in the device shell 1; the storage box 7 is mounted on top inside the apparatus case 1; a charging port 3 communicated with a storage box 7 is arranged on the top surface of the device shell 1; the quantitative discharging mechanism is arranged below the storage box 7 in a communicating manner, and quantitative powder is discharged downwards by the quantitative discharging mechanism according to the requirement; the lower pressing forming structure and the material receiving driving mechanism are arranged on the upper side surface of the bottom plate 2, the replaceable mold is arranged on the lower pressing forming structure, the material receiving driving mechanism is used for receiving powder put in the quantitative material discharging mechanism and conveying the powder into the replaceable mold, the hydraulic forming unit is used for pressing and forming the powder in the replaceable mold, and the brake pad is ejected out of the replaceable mold after pressing is finished; a window 40 is provided in the device housing 1 for the operator to remove the pressed brake pads.

Quantitative powder is automatically fed by using a quantitative feeding mechanism, and the feeding amount of the powder is accurately controlled according to the thickness requirement of the brake pad, so that the production efficiency and the quality of the brake friction plate are improved; the material receiving driving mechanism is used for receiving the powder put in by the quantitative material placing mechanism and conveying the powder into the replaceable die, so that automatic filling of the hydraulic forming unit is realized, and the manual investment is reduced, thereby saving the cost; the brake pad after being pressed is demoulded by the aid of the downward-pressing forming structure, so that the requirements for facilitating mould taking and improving working efficiency are met.

Further, the quantitative discharging mechanism comprises a discharging seat 10, a plurality of partition plates 39 and a plurality of quantitative linear motors 38; the discharging seat 10 is fixed in the middle of the device shell 1; the lower side of the storage box 7 is communicated with the upper side surface of the discharging seat 10 through a flexible channel 8; a plurality of flat slots 28 are horizontally arranged on one vertical side surface of the material placing seat 10 from top to bottom; the partition plates 39 are respectively inserted into the flat slots 28; a plurality of material receiving holes 19 are vertically arranged on the material placing seat 10 at intervals; a plurality of quantitative plate holes 26 are formed in each partition plate 39, and each quantitative plate hole 26 corresponds to each material receiving hole 19; the quantitative linear motors 38 are respectively used for driving the partition plates 39 to horizontally move along the flat slots 28.

Utilize each ration linear electric motor 38 to drive each division board 39 and remove, ration diaphragm orifice 26 on the division board 39 of downside does not connect material hole 19 intercommunication when the feeding, ration diaphragm orifice 26 on all the other each division boards 39 all is linked together with the material hole 19 that connects that corresponds, division board 39 horizontal migration that corresponds is controlled according to the demand of powder quantity, make ration diaphragm orifice 26 on this division board 39 and connect material hole 19 not communicate, the powder between this division board 39 and the division board 39 of downside accords with the quantity demand, later the ration linear electric motor 38 of downside drives division board 39 of downside removes, make ration diaphragm orifice 26 on the division board 39 of downside and connect material hole 19 to communicate, realize the ration and put in the powder.

Further, a vibrator 9 is mounted on the material placing seat 10. Utilize vibrator 9 vibrations powder, make the powder can fill connecting hole 25, ensure that the weight of powder is accurate, prevent the powder adhesion simultaneously on the blowing seat 10.

Further, the material receiving driving mechanism comprises an auxiliary filling mechanism, a cantilever plate 29, a translation sliding rail 17, a translation motor 13, a translation driving gear 15 and a plurality of material receiving hoppers 11; the translation slide rail 17 is fixed on the upper side surface of the bottom plate 2; the cantilever plate 29 is transversely installed on the translation slide rail 17 in a sliding manner; the translation motor 13 is arranged on the translation sliding rail 17; each receiving hopper 11 is fixed on the cantilever plate 29; a translation driving gear 15 is installed on an output shaft of the translation motor 13; a translation driving rack 14 meshed with a translation driving gear 15 is transversely arranged on the cantilever plate 29 and used for driving the cantilever plate 29 to move so that each material receiving hopper 11 is respectively positioned below each material receiving hole 19; the auxiliary filling mechanism is mounted on the cantilever plate 29 and releases the powder into the replaceable mould when each receiving hopper 11 is moved above the replaceable mould.

The translation motor 13 drives the cantilever plate 29 to move through the engagement between the translation driving gear 15 and the translation driving rack 14, so that each receiving hopper 11 moves to the upper part of the mold shell 12 after receiving quantitative powder, and automatic filling is performed under the driving of the auxiliary filling mechanism.

Further, the auxiliary filling mechanism includes a filling linear motor 30 and a release plate 32; a motor moving groove 31 is arranged on the cantilever plate 29; the packing linear motor 30 is arranged in the motor moving groove 31; a horizontal slot 33 communicated with the motor moving slot 31 is horizontally arranged in the cantilever plate 29; the release plate 32 is inserted into the horizontal slot 33, and the linear motor 30 for filling drives the release plate 32 to move along the horizontal slot 33; a plurality of connecting holes 35 are vertically formed in the cantilever plate 29, and each connecting hole 35 is respectively communicated with each material receiving hopper 11; the release plate 32 is provided with emptying plate holes 34 corresponding to the respective connection holes 35.

Utilize the cooperation between linear electric motor 30 and the release board 32 of packing, linear electric motor 30 drive release board 32 removes to make connecting hole 35 and blowing diaphragm orifice 34 not communicate and connect the material when connecing the material, all remove the top back to mould shell 12 when each connects hopper 11, linear electric motor 30 drive release board 32 removes to make connecting hole 35 and blowing diaphragm orifice 34 communicate, packs mould shell 12, guarantees that the powder can not spill before filling, has realized automatic packing.

Further, the downward-pressing forming structure comprises an upper-side extrusion seat 4, two mounting plates 36, two lower-side hydraulic cylinders 42, four upper-side hydraulic cylinders 6 and a plurality of extrusion columns 16; the two lower hydraulic cylinders 42 are both arranged on the upper side surface of the bottom plate 2, and piston rods of the two lower hydraulic cylinders 42 are both vertically upward; the end parts of the piston rods of the two lower hydraulic cylinders 42 are respectively provided with a driving seat 5; the two driving seats 5 are respectively fixed on the front side surface and the rear side surface of the upper side extrusion seat 4; the four upper hydraulic cylinders 6 are respectively vertically arranged on the left edge and the right edge of the front side surface and the rear side surface of the upper extrusion seat 4, and piston rods of the four upper hydraulic cylinders 6 are all vertically downward; a mounting seat 41 is fixed on the end of the piston rod of each upper hydraulic cylinder 6; the two mounting plates 36 are fixed to the two front mounting seats 41 and the two rear mounting seats 41, respectively; the replaceable molds are detachably mounted on the two mounting plates 36; each extrusion column 16 is vertically fixed on the upper side surface of the bottom plate 2 in a spaced manner, and the upper end of each extrusion column 16 extends into the replaceable die.

Four upper hydraulic cylinders 6 are used for driving the mounting seat 41 to drive the replaceable die to tightly press the upper extrusion seat 4, two lower hydraulic cylinders 42 are used for driving the upper extrusion seat 4 to feed downwards in a section-falling manner, and each extrusion column 16 is used for performing section-falling type pressing on powder in the replaceable die, so that the pressed brake friction plate is more compact in structure; the replaceable molds which are detachably arranged are convenient to replace different models, and the universality of the friction plate hydraulic forming device of the brake pad is enhanced.

Further, the replaceable die includes a die housing 12, a plurality of extrusion heads 23, and a plurality of restriction orifice plates 22; a positioning installation groove 37 is transversely arranged on each of the front side surface and the rear side surface of the die shell 12; the two mounting plates 36 are respectively mounted on the two positioning mounting grooves 37 through die mounting bolts; a plurality of pore plate limiting grooves 21 are arranged on the upper side surface of the mould shell 12 at intervals; each limiting pore plate 22 is respectively placed in each pore plate limiting groove 21 and used for placing a brake pad back plate; an extrusion hole 20 for receiving powder is arranged at the center of the bottom of each pore plate limiting groove 21; the upper end of each extrusion column 16 extends into the corresponding extrusion hole 20; each extrusion head 23 is respectively arranged on the extending end of each extrusion column 16 through an extrusion head mounting bolt 25; an extrusion plate 24 which is vertically matched with the corresponding extrusion hole 20 in a sliding manner is arranged on the upper side surface of each extrusion head 23, and the vertical side surface of each extrusion plate 24 is tightly attached to the hole wall of each extrusion hole 20; the two mounting seats 41 are respectively mounted on the left side surface and the right side surface of the die shell 12 through die mounting bolts; an unlocking hole 18 communicated with a vertical side wall of the die shell 12 is formed in the lower side hole wall of each extrusion hole 20 and used for dismounting an extrusion head mounting bolt 25.

The mold housing 12 is mounted on the two mounting plates 36 by using the mold mounting bolts, so that the mold housing 12 can be detachably mounted; the limiting pore plate 22 is placed in the pore plate limiting groove 21, so that different types of limiting pore plates 22 can be replaced on the premise of not replacing the mould shell 12, and brake pads of different types can be pressed; the use of the unlocking holes 18 facilitates the insertion of a wrench into the mounting bolts 25 for disassembly and assembly when the mold shell 12 needs to be replaced.

Further, a protruding ring 27 for blocking the downward movement of the pressing plate 24 is provided at the lower orifice of each pressing hole 20. The pressing plate 24 is blocked by the convex ring 27, and the pressing plate 24 is prevented from being separated from the pressing hole 20 to cause the reference deviation.

The utility model provides an among the friction disc production system of brake block, translation motor 13, ration linear electric motor 38 and packing linear electric motor 30 all adopt current step motor.

When the friction plate production system of the brake pad provided by the utility model is installed and used, the premixed powder of the brake friction plate is poured into the storage box 7 through the charging hole 3; the vibrator 9 starts to vibrate; when feeding, the quantitative plate holes 26 on the partition plate 39 at the lowest side are not communicated with the material receiving holes 19, the quantitative plate holes 26 on the other partition plates 39 are communicated with the corresponding material receiving holes 19, the quantitative linear motor 38 corresponding to the requirement of the powder material dosage controls the corresponding partition plate 39 to move horizontally, so that the quantitative plate holes 26 on the partition plate 39 are not communicated with the material receiving holes 19, the powder material between the partition plate 39 and the partition plate 39 at the lowest side meets the dosage requirement, then the quantitative linear motor 38 at the lowest side drives the partition plate 39 at the lowest side to move, so that the quantitative plate holes 26 on the partition plate 39 at the lowest side are communicated with the material receiving holes 19, the powder material in each powder material receiving hole 19 falls into each corresponding material receiving hopper 11, and at the moment, the material discharge plate holes 34 on the release plate 32 are not communicated with each connecting hole 35; then, the translation motor 13 drives the cantilever plate 29 to move through the engagement of the translation driving gear 15 and the translation driving rack 14, so that each receiving hopper 11 moves to the upper part of the die shell 12, each connecting hole 35 is positioned above each extrusion hole 20, the filler linear motor 30 drives the release plate 32 to move, the discharging hole 34 on the release plate 32 is communicated with each connecting hole 35, the powder falls into each extrusion hole 20, and then the translation motor 13 drives the cantilever plate 29 to completely leave the upper part of the die shell 12;

then, an operator places the back plate of the brake pad on each limiting pore plate 22 through the window 40; two upside pneumatic cylinders 6 drive mould shell 12 and move up, until the brake block backplate sticiss on the downside of upside extrusion seat 4, two downside pneumatic cylinders 42 drive 4 segment types of upside extrusion seats and push down, form the counterpressure with each stripper plate 24, when the brake block extrudees to required thickness, mould shell 12 moves down until the brake block of compression moulding is outside the ejecting mould shell 12 of stripper plate 24, upside extrusion seat 4 moves up to the top, accomplishes the suppression.

As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a friction disc production system of brake block which characterized in that: comprises a device shell (1), a bottom plate (2), a quantitative batching unit and a hydraulic forming unit; the quantitative batching unit comprises a storage box (7), a quantitative discharging mechanism and a material receiving driving mechanism; the hydraulic forming unit comprises a press forming structure and a replaceable die;

the bottom plate (2) is fixed on the bottom surface in the device shell (1); the storage box (7) is arranged at the top in the device shell (1); a charging opening (3) communicated with the storage box (7) is arranged on the top surface of the device shell (1); the quantitative discharging mechanism is arranged below the storage box (7) in a communicating manner, and quantitative powder is discharged downwards by the quantitative discharging mechanism according to the requirement; the lower pressing forming structure and the material receiving driving mechanism are both arranged on the upper side surface of the bottom plate (2), the replaceable mould is arranged on the lower pressing forming structure, the material receiving driving mechanism is used for receiving powder put in by the quantitative material discharging mechanism and conveying the powder into the replaceable mould, the lower pressing forming structure is used for pressing and forming the powder in the replaceable mould, and the brake pad is ejected out of the replaceable mould after pressing is finished; a window (40) is arranged on the device shell (1) and is used for an operator to take out the pressed brake pad.

2. A friction plate manufacturing system for a brake pad according to claim 1, wherein: the quantitative discharging mechanism comprises a discharging seat (10), a plurality of partition plates (39) and a plurality of quantitative linear motors (38); the discharging seat (10) is fixed in the middle of the device shell (1); the lower side of the storage box (7) is communicated with the upper side surface of the discharging seat (10) through a flexible channel (8); a plurality of flat slots (28) are horizontally arranged on one vertical side surface of the discharging seat (10) from top to bottom; each partition plate (39) is respectively inserted into each flat slot (28); a plurality of material receiving holes (19) are vertically arranged on the material placing seat (10) at intervals; a plurality of quantitative plate holes (26) are formed in each partition plate (39), and each quantitative plate hole (26) corresponds to each material receiving hole (19); the quantitative linear motors (38) are respectively used for driving the partition plates (39) to horizontally move along the flat slots (28).

3. A friction plate manufacturing system for a brake pad according to claim 2, wherein: a vibrator (9) is arranged on the material placing seat (10).

4. A friction plate manufacturing system for a brake pad according to claim 2, wherein: the material receiving driving mechanism comprises an auxiliary filling mechanism, a cantilever plate (29), a translation sliding rail (17), a translation motor (13), a translation driving gear (15) and a plurality of material receiving hoppers (11); the translation slide rail (17) is fixed on the upper side surface of the bottom plate (2); the cantilever plate (29) is transversely installed on the translation slide rail (17) in a sliding manner; each receiving hopper (11) is fixed on the cantilever plate (29); the translation motor (13) is arranged on the translation sliding rail (17); the translation driving gear (15) is arranged on an output shaft of the translation motor (13); a translation driving rack (14) meshed with a translation driving gear (15) is transversely arranged on the cantilever plate (29) and used for driving the cantilever plate (29) to move so that each material receiving hopper (11) is respectively positioned below each material receiving hole (19); the auxiliary filling mechanism is arranged on the cantilever plate (29), and releases powder into the replaceable die when each receiving hopper (11) moves above the replaceable die.

5. A friction plate manufacturing system for a brake disc as claimed in claim 4, wherein: the auxiliary filling mechanism comprises a filling linear motor (30) and a release plate (32); a motor moving groove (31) is arranged on the cantilever plate (29); the packing linear motor (30) is arranged in the motor moving groove (31); a horizontal slot (33) communicated with the motor moving slot (31) is horizontally arranged in the cantilever plate (29); the release plate (32) is inserted in the horizontal slot (33), and the linear motor (30) for filling drives the release plate (32) to move along the horizontal slot (33); a plurality of connecting holes (35) are vertically arranged on the cantilever plate (29), and each connecting hole (35) is respectively communicated with each material receiving hopper (11); the releasing plate (32) is provided with discharging plate holes (34) corresponding to the connecting holes (35).

6. A friction plate manufacturing system for a brake pad according to claim 1, wherein: the downward pressing and forming structure comprises an upper side pressing seat (4), two mounting plates (36), two lower side hydraulic cylinders (42), four upper side hydraulic cylinders (6) and a plurality of pressing columns (16); the two lower hydraulic cylinders (42) are arranged on the upper side surface of the bottom plate (2), and piston rods of the two lower hydraulic cylinders (42) are vertically upward; the end parts of the piston rods of the two lower hydraulic cylinders (42) are respectively provided with a driving seat (5); the two driving seats (5) are respectively fixed on the front side surface and the rear side surface of the upper side extrusion seat (4); the four upper hydraulic cylinders (6) are respectively vertically arranged on the left edge and the right edge of the front side surface and the rear side surface of the upper extrusion seat (4), and piston rods of the four upper hydraulic cylinders (6) are vertically downward; a mounting seat (41) is fixed on the end part of the piston rod of each upper hydraulic cylinder (6); the two mounting plates (36) are respectively fixed on the two mounting seats (41) on the front side and the two mounting seats (41) on the rear side; the replaceable mould is detachably arranged on the two mounting plates (36); each extrusion column (16) is vertically fixed on the upper side surface of the bottom plate (2) in an interval manner, and the upper end of each extrusion column (16) extends into the replaceable die.

7. A friction plate manufacturing system for a brake pad according to claim 6, wherein: the replaceable die comprises a die shell (12), a plurality of extrusion heads (23) and a plurality of limiting orifice plates (22); a positioning installation groove (37) is transversely arranged on each of the front side surface and the rear side surface of the die shell (12); the two mounting plates (36) are respectively mounted on the two positioning mounting grooves (37); a plurality of pore plate limiting grooves (21) are arranged on the upper side surface of the die shell (12) at intervals; each limiting pore plate (22) is respectively arranged in each pore plate limiting groove (21) and is used for placing a brake pad back plate; an extrusion hole (20) for receiving powder is arranged at the center of the bottom of each pore plate limiting groove (21); the upper end of each extrusion column (16) extends into the corresponding extrusion hole (20) respectively; each extrusion head (23) is respectively arranged on the extending end of each extrusion column (16) through an extrusion head mounting bolt (25); an extrusion plate (24) which is vertically matched with the corresponding extrusion hole (20) in a sliding manner is arranged on the upper side surface of each extrusion head (23), and the vertical side surface of each extrusion plate (24) is tightly attached to the hole wall of each extrusion hole (20); the two mounting seats (41) are respectively mounted on the left side surface and the right side surface of the die shell (12) through die mounting bolts; the lower side hole wall of each extrusion hole (20) is provided with an unlocking hole (18) communicated with a vertical side wall of the die shell (12) for dismounting the extrusion head mounting bolt (25).

8. A friction plate manufacturing system for a brake pad according to claim 1, wherein: a convex ring (27) for stopping the downward movement of the extrusion plate (24) is arranged at the lower side hole of each extrusion hole (20).