CN116901477B

CN116901477B - Cutting device and combined sealing ring produced by using same

Info

Publication number: CN116901477B
Application number: CN202311175484.9A
Authority: CN
Inventors: 胡磊; 程敏清; 潘玉迅
Original assignee: Suzhou Meifului New Material Technology Co ltd
Current assignee: Suzhou Meifului New Material Technology Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2023-12-12
Anticipated expiration: 2043-09-13
Also published as: CN116901477A

Abstract

The application discloses a cutting device and a combined sealing ring produced by using the same, and relates to the field of cutting devices, wherein the cutting device comprises a cutter, the cutter can horizontally move, and when the cutter horizontally moves, a hollow rubber material can be cut into rubber ring blanks; the cutter is connected with a cutting assembly; the cutting assembly comprises a turning plate and a trigger piece, when the cutter cuts the extruded rubber material into rubber ring blanks, the cutter moves to drive the turning plate to contact with the trigger piece, the trigger piece enables the turning plate to rotate, and the turning plate turns the rubber ring blanks onto the extrusion lower die; the cutter is installed on the extrusion die of extruder, and the extrusion lower mould has a plurality of and all installs on transmission subassembly, and one side of extrusion die is provided with shaping subassembly, and transmission subassembly can be with the rubber circle stock that cuts off the subassembly and transmit to shaping subassembly. The rubber ring blank can be accurately transferred into the extrusion lower die, the extrusion, transfer, transmission and forming processes are sequentially completed, and the forming efficiency is improved.

Description

Cutting device and combined sealing ring produced by using same

Technical Field

The application relates to the field of cutting devices, in particular to a cutting device and a combined sealing ring produced by using the same.

Background

The combined sealing ring is also called as a combined gasket sealing ring and is a sealing ring for sealing screw threads and flange connection, and comprises a metal ring and a rubber sealing gasket, wherein the metal ring is subjected to rust prevention treatment, and the rubber ring is generally made of oil-resistant nitrile rubber or fluororubber.

With the rapid development of modern industry, especially chemical industry, rubber products are various, but the production process is basically the same. The product with general solid rubber (raw rubber) as raw material has the production process mainly including: the method comprises the steps of material preparation, plasticating, mixing, forming, vulcanization, finishing and inspection, wherein in the production process of rubber rings, a compression molding method is needed, rubber materials are placed in a mold by means of a female mold and a male mold for heating molding, before compression molding, the rubber materials are placed at specified positions in the mold, and generally need to be placed in an annular groove of the mold, so that the molding effect is improved, in the production of some rubber rings, rubber materials are extruded firstly, and then the rubber materials are cut into rubber ring blanks (rubber materials) by a cutter, so that the blanks can be placed in the mold more accurately, and the placed material quantity is more accurate.

Chinese patent CN218699170U discloses a cutting device for rubber ring production, and the upper end middle side of processing platform has been seted up and has been placed the arc groove, the rubber tube has been placed to the inside in placing the arc groove, the upper end left side fixed mounting of processing platform has the support, the upper end fixed mounting of support has the cylinder, the flexible end fixed mounting of cylinder has the cutter, the upper end rear side of processing platform is provided with thrust unit, thrust unit includes the fixed plate, the spout has been seted up to the front end upside of fixed plate, the upper end front side of processing platform is provided with chucking device, has to carry out chucking fixedly to the rubber tube through the arc cardboard, promotes the rubber tube to remove the below of cutter when moving through pushing the dish, cuts into the rubber ring through the cutter when moving down to drop into the bin through the logical groove and store, the operation is simple, can cut in succession, improves machining efficiency.

The above-mentioned patents and prior art also have the following drawbacks: the rubber ring can not be directly formed on the metal ring by injection molding, the rubber ring or rubber ring blank is required to be manufactured firstly, then the rubber ring is subjected to hot press forming on the metal ring, the rubber material is usually extruded in the prior art, the rubber material is cut into the rubber ring blank and then subjected to hot press forming, the rubber ring blank can not be accurately turned over to a die after being cut off by the conventional cutting device, the rubber ring blank is required to be collected and then placed on the die again, and the cut-out rubber ring blank can not be produced to the formed continuous production, so that the production efficiency is low.

Therefore, the application provides a cutting device and a combined sealing ring produced by using the device to meet the demands.

Disclosure of Invention

The application aims to provide a cutting device and a combined sealing ring produced by using the same, which can accurately transfer rubber ring blanks into an extrusion lower die, complete extrusion, transfer, transmission and forming processes in sequence and improve forming efficiency.

In order to achieve the above purpose, the present application provides the following technical solutions: the cutting device comprises a cutter, wherein the cutter can horizontally move, and after the cutter horizontally moves, the hollow rubber material can be cut into rubber ring blanks; the cutter is connected with a cutting assembly;

the cutting assembly comprises a turning plate and a triggering piece, when the cutter cuts the extruded rubber material into rubber ring blanks, the cutter moves to drive the turning plate to be in contact with the triggering piece, the triggering piece enables the turning plate to rotate, and the turning plate turns over the rubber ring blanks to the extrusion lower die.

Preferably, the cutter is arranged on an extrusion die head of the extruder, the extrusion lower die is provided with a plurality of extrusion lower dies and is arranged on the transmission assembly, one side of the extrusion die head is provided with the forming assembly, and the transmission assembly can transmit the rubber ring blanks cut by the cutting assembly to the forming assembly;

the extrusion lower die is provided with a metal lower molding cavity and a rubber lower molding cavity; the metal lower molding cavity is communicated with the rubber lower molding cavity, and the metal lower molding cavity is positioned outside the rubber lower molding cavity; the metal lower forming cavity is used for placing a metal ring; the molding assembly can mold the rubber ring blank in the rubber lower molding cavity on the corresponding metal ring;

the cutting assembly further comprises a cutting hydraulic rod, a connecting plate, a rotating rod, a trigger block and a torsion spring; the connecting plate is fixedly arranged at the output end of the cutting hydraulic rod; the cutter is fixedly arranged on the connecting plate, and the rotating rod is fixedly arranged on the connecting plate; the turning plate is rotationally connected to the rotating rod; one end of the torsion spring is fixedly arranged on the rotating rod, and the other end of the torsion spring is fixedly arranged on the turning plate; the trigger block is fixedly arranged on the rotating rod, a hidden groove is formed in the connecting plate, the turning plate is arranged in the hidden groove, a guide block is fixedly arranged on the extrusion lower die, and the guide block is in a conical shape.

Preferably, the transmission assembly comprises a driving unit, a driving chain, a plurality of driving gears, a plurality of driving shafts and a plurality of bearing plates, wherein the plurality of bearing plates are fixedly arranged on the driving chain, the plurality of driving shafts are fixedly arranged on the corresponding driving gears, and the driving gears are meshed with the driving chain; the plurality of extrusion lower dies are fixedly arranged on the corresponding bearing plates; the driving unit comprises a driving motor, a driving belt pulley, a driven belt pulley and a driving belt; the driving belt pulley is fixedly arranged at the output end of the driving motor; the driven belt pulley is fixedly arranged on one of the driving shafts, and the driving belt is connected with the driving belt pulley and the driven belt pulley.

Preferably, the transmission assembly further comprises a supporting plate, the driving shaft is rotatably connected to the supporting plate, the forming assembly comprises an upper extrusion die, a lower pressing plate and a forming hydraulic rod, and the lower pressing plate is fixedly arranged at the output end of the forming hydraulic rod; the extrusion upper die is fixedly arranged on the lower pressing plate.

Preferably, the extrusion upper die is provided with a metal upper molding cavity and a rubber upper molding cavity; the metal upper molding cavity is communicated with the rubber upper molding cavity; the metal upper forming cavity is matched with the metal lower forming cavity; the rubber upper molding cavity is matched with the rubber lower molding cavity.

Preferably, the molding assembly further comprises a slide bar and a top plate; the sliding rod is fixedly arranged on the supporting plate, and a sliding hole is formed in the lower pressing plate; the sliding rod passes through the sliding hole and is in sliding fit with the sliding hole, and the top plate is fixedly arranged at the top of the sliding rod; the forming hydraulic rod is fixedly arranged on the top plate.

Preferably, a supporting block is arranged on one side of the connecting plate, a limiting strip is fixedly arranged on the supporting block, limiting blocks are fixedly arranged on two sides of the connecting plate corresponding to the limiting strip, guide blocks are fixedly arranged on the limiting blocks, guide grooves are formed in the limiting strips, and the guide blocks are in sliding fit in the guide grooves.

Preferably, the baffle frame is fixedly installed on the turning plate, the trigger piece is fixedly installed at one end of the extruder, the trigger piece comprises a vertical surface, a horizontal surface and a transition surface, the vertical surface is vertically arranged, the horizontal surface is horizontally arranged, two ends of the transition surface are respectively connected between the horizontal surface and the vertical surface and are in smooth transition through torsion, the trigger piece is fixedly installed below the end part corresponding to the rotating rod, and the trigger piece is vertically arranged.

Preferably, two heating plates are fixedly installed on the supporting plate, the two heating plates are respectively arranged above and below the extrusion lower die, heating wires are arranged in the extrusion upper die, a bottom plate is fixedly installed on the supporting plate, and the bottom plate is located at the position of the forming assembly.

The utility model provides a combination sealing washer, includes holding ring and elastic ring, the holding ring is established on the elastic ring, the outer lane fixed mounting of elastic ring has a plurality of anticreep piece, a plurality of anticreep groove has been seted up to the inner circle of holding ring, the anticreep piece sets up in the anticreep groove.

In summary, the application has the technical effects and advantages that:

1. according to the application, the extruded rubber material is cut into the rubber ring blank through the cutting assembly, and after the rubber ring blank is cut, the cutting assembly turns over the rubber ring blank into the extrusion lower die through the turning plate, so that the turning time is more accurate, and the rubber ring blank can be accurately transferred into the extrusion lower die;

2. the metal ring is placed in the extrusion lower die in advance, the transmission assembly moves the extrusion lower die to the position of the forming assembly, the forming assembly extrudes and forms the rubber ring blank on the metal ring, the extrusion, transfer, transmission and forming processes are sequentially completed, the forming efficiency is improved, the rubber ring blank is formed on the metal ring through extrusion, the connection tightness between the metal ring and the rubber ring blank is improved, and the metal ring and the rubber ring blank caused by an assembly gap can be effectively prevented from being separated;

2. according to the application, when the extrusion lower die moves between the two heating plates, the heating plates heat the extrusion lower die and the metal ring and the rubber ring inside, so that the rubber ring has certain fluidity in the subsequent extrusion forming process, and is formed into a specified shape, the heating time of the extrusion upper die can be reduced, and the forming efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of an extruder, a cutting assembly, a conveying assembly and a forming assembly of the present application;

FIG. 2 is a schematic view of the structure of the connecting plate, the turning plate and the cutter according to the application;

FIG. 3 is an enlarged view of portion A of FIG. 2 in accordance with the present application;

FIG. 4 is a schematic view of the structure of the extruder, heating plate and forming assembly of the present application;

FIG. 5 is an enlarged view of portion B of FIG. 4 in accordance with the present application;

FIG. 6 is a schematic view of the structure of the upper platen, the upper extrusion die, the drive chain and the drive gear in the present application;

FIG. 7 is a schematic view showing the structure of an upper extrusion die and a lower extrusion die according to the present application;

FIG. 8 is a vertical plane, a horizontal plane and a transition plane in the present application;

FIG. 9 is a schematic view of the structure of the support ring and seal ring of the present application;

fig. 10 is a schematic structural view of the anti-falling block and the anti-falling groove of the present application.

In the figure: 1. an extruder; 2. an extrusion die; 3. cutting off the assembly; 31. turning plate; 32. a trigger; 321. a vertical plane; 322. a horizontal plane; 323. a transition surface; 33. cutting a hydraulic rod; 34. a connecting plate; 35. a cutter; 36. a rotating rod; 37. a trigger block; 38. a torsion spring; 4. a transmission assembly; 41. a drive chain; 42. a drive gear; 43. a drive shaft; 44. a carrying plate; 45. a driving motor; 46. a support plate; 5. extruding a lower die; 51. a metal lower molding cavity; 52. a rubber lower molding cavity; 53. a guide block; 6. a molding assembly; 61. extruding an upper die; 62. a lower pressing plate; 63. forming a hydraulic rod; 64. a slide bar; 65. a top plate; 71. a metal upper molding cavity; 72. forming a cavity on rubber; 8. a support block; 9. a limit bar; 10. a limiting block; 11. a blocking frame; 12. a heating plate; 13. a bottom plate; 14. a support ring; 15. an elastic ring; 16. an anti-falling block; 17. an anti-falling groove.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Examples: referring to fig. 1 to 8, a cutting apparatus includes a cutter 35, the cutter 35 being capable of moving horizontally, and cutting a hollow rubber material into a rubber ring blank after the cutter 35 moves horizontally; the cutter 35 is connected with a cutting assembly 3;

the cutting assembly 3 comprises a turning plate 31 and a trigger piece 32, when the cutter 35 cuts the extruded rubber material into rubber ring blanks, the cutter 35 moves to drive the turning plate 31 to contact with the trigger piece 32, the trigger piece 32 enables the turning plate 31 to rotate, and the turning plate 31 turns the rubber ring blanks onto the extrusion lower die 5;

the cutter 35 is arranged on the extrusion die head 2 of the extruder 1, the extrusion lower die 5 is provided with a plurality of extrusion lower dies and is arranged on the transmission assembly 4, one side of the extrusion die head 2 is provided with the forming assembly 6, and the transmission assembly 4 can transmit rubber ring blanks cut by the cutting assembly 3 to the forming assembly 6;

the lower extrusion die 5 is provided with a metal lower molding cavity 51 and a rubber lower molding cavity 52; the metal lower molding cavity 51 is communicated with the rubber lower molding cavity 52, and the metal lower molding cavity 51 is positioned outside the rubber lower molding cavity 52; the metal lower molding cavity 51 is used for placing a metal ring; the molding assembly 6 is capable of molding the rubber ring blanks in the rubber lower molding cavity 52 onto the corresponding metal rings.

Placing a metal ring in a metal lower molding cavity 51 on an extrusion lower die 5, extruding an annular rubber material by an extruder 1 through an extrusion die head 2, cooling the extruded annular rubber material through the extrusion die head 2, performing preliminary molding, cutting the extruded rubber material by a cutting assembly 3 after extruding the rubber material with a specified width to form an annular rubber ring blank, and positioning the rubber ring blank at a position of a turning plate 31 after cutting the rubber material into the rubber ring blank by the cutting assembly 3; the trigger piece 32 drives the turning plate 31 to rotate, the turning plate 31 turns over the rubber ring blank to the extrusion lower die 5, the transmission assembly 4 transmits the extrusion lower die 5 to the position of the forming assembly 6, and the forming assembly 6 forms the rubber ring blank in the extrusion lower die 5 on the metal ring.

The extruded rubber material is cut into rubber ring blanks through the cutting assembly 3, after the rubber ring blanks are cut, the cutting assembly 3 turns over the rubber ring blanks into the extrusion lower die 5 through the turning plate 31, the turning time is matched more accurately, and the rubber ring blanks can be transferred into the extrusion lower die 5 accurately; the metal ring is placed in advance in the extrusion lower die 5, the transmission assembly 4 moves the extrusion lower die 5 to the position of the forming assembly 6, the rubber ring blank is extruded and formed on the metal ring by the forming assembly 6, the extrusion, transfer, transmission and forming processes are completed sequentially, the forming efficiency is improved, the rubber ring blank is formed on the metal ring by extrusion, the connection tightness between the metal ring and the rubber ring blank is improved, and the metal ring and the rubber ring blank caused by an assembly gap can be effectively prevented from being separated.

Further, referring to fig. 1 to 8, the cutting assembly 3 further includes a cutting hydraulic lever 33, a connecting plate 34, a cutter 35, a rotating lever 36, a trigger block 37, and a torsion spring 38; the connecting plate 34 is fixedly arranged at the output end of the cutting hydraulic rod 33; the cutter 35 is fixedly arranged on the connecting plate 34, and the rotating rod 36 is fixedly arranged on the connecting plate 34; the turning plate 31 is rotatably connected to the rotating rod 36; one end of the torsion spring 38 is fixedly arranged on the rotary rod 36, and the other end of the torsion spring 38 is fixedly arranged on the turning plate 31; the trigger block 37 is fixedly arranged on the rotating rod 36, a hidden groove is formed in the connecting plate 34, the turning plate 31 is arranged in the hidden groove, the guide block 53 is fixedly arranged on the extrusion lower die 5, and the guide block 53 is in a conical shape.

The cutting hydraulic rod 33 pushes the connecting plate 34 to move, the connecting plate 34 drives the cutter 35 to move, the cutter 35 cuts off the annular rubber material extruded by the extruder 1 into rubber ring blanks, after the cutter 35 cuts off the rubber material, the trigger block 37 abuts against the trigger piece 32, and in the process of continuing to move, the trigger piece 32 enables the trigger block 37 to rotate, the trigger block 37 drives the rotating rod 36 to rotate, the rotating rod 36 drives the turning plate 31 to rotate, and the turning plate 31 rotates to turn the rubber ring blanks into the extrusion lower die 5 by compressing the torsion spring 38; then the cutting hydraulic rod 33 resets to drive the connecting plate 34, the cutter 35 and the trigger block 37 to move, the trigger block 37 is separated from the trigger piece 32, and the torsion spring 38 resets to drive the rotating rod 36 to rotate, so that the turning plate 31 resets to be in a vertical state.

Further, referring to fig. 1 to 8, the transmission assembly 4 includes a driving unit, a driving chain 41, a plurality of driving gears 42, a plurality of driving shafts 43, and a plurality of carrying plates 44, wherein the plurality of carrying plates 44 are fixedly mounted on the driving chain 41, the plurality of driving shafts 43 are fixedly mounted on the corresponding driving gears 42, and the driving gears 42 are meshed with the driving chain 41; a plurality of extrusion lower dies 5 are fixedly arranged on the corresponding bearing plates 44; the driving unit includes a driving motor 45, a driving pulley, a driven pulley, and a driving belt; the driving pulley is fixedly arranged at the output end of the driving motor 45; the driven pulley is fixedly mounted on one of the drive shafts 43, and the drive belt is connected to the drive pulley and the driven pulley.

The driving motor 45 drives the driving belt pulley to rotate, the driving belt pulley drives the driving belt to rotate, the driving belt pulley drives the driven belt pulley to rotate, the driven belt pulley drives the driving gear 42 to rotate, the driving gear 42 drives the driving chain 41 to rotate, and the driving chain 41 drives the bearing plate 44 and the extrusion lower die 5 to move.

The driving motor 45 is a stepping motor and is operated periodically.

The carrier plate 44 is fixed to only one of the links of the drive chain 41, preventing the carrier plate 44 from seizing when the drive chain 41 is moved to the reversing position.

Further, referring to fig. 1-8, the transmission assembly 4 further includes a support plate 46, the driving shaft 43 is rotatably connected to the support plate 46, the molding assembly 6 includes an upper extrusion die 61, a lower pressing plate 62, and a molding hydraulic rod 63, and the lower pressing plate 62 is fixedly mounted at an output end of the molding hydraulic rod 63; the pressing upper die 61 is fixedly mounted on the lower platen 62.

Further, referring to fig. 1 to 8, the upper extrusion die 61 is provided with a metal upper molding cavity 71 and a rubber upper molding cavity 72; the metal upper molding cavity 71 is communicated with the rubber upper molding cavity 72; the metal upper molding cavity 71 is matched with the metal lower molding cavity 51; the upper rubber molding cavity 72 mates with the lower rubber molding cavity 52.

When the extrusion lower die 5 moves to the position of the molding assembly 6, the molding hydraulic rod 63 drives the lower pressing plate 62 to move, the lower pressing plate 62 drives the extrusion upper die 61 to move, the extrusion upper die 61 and the extrusion lower die 5 are closed, and the rubber ring is molded on the metal ring in the rubber upper molding cavity 72 and the rubber lower molding cavity 52.

Further, referring to fig. 1-8, the molding assembly 6 further includes a slide bar 64 and a top plate 65; the sliding rod 64 is fixedly arranged on the supporting plate 46, and a sliding hole is formed in the lower pressing plate 62; the sliding rod 64 passes through the sliding hole and is in sliding fit with the sliding hole, and the top plate 65 is fixedly arranged on the top of the sliding rod 64; the forming hydraulic lever 63 is fixedly mounted on the top plate 65.

The molding hydraulic rod 63 drives the lower pressure plate 62 to move, and the lower pressure plate 62 moves on the sliding rod 64, so that the lower pressure plate 62 is more stable, is not easy to shake and misplace, and is more accurate in molding.

Further, referring to fig. 1-8, a supporting block 8 is disposed on one side of the connecting plate 34, a limiting bar 9 is fixedly mounted on the supporting block 8, limiting blocks 10 are fixedly mounted on two sides of the connecting plate 34 corresponding to the limiting bar 9, guide blocks are fixedly mounted on the limiting blocks 10, guide grooves are formed in the limiting bar 9, and the guide blocks are in sliding fit in the guide grooves.

When the connecting plate 34 moves, the limiting block 10 is driven to move, the limiting block 10 drives the guide block to move, and the guide block moves in the guide groove, so that the connecting plate 34 moves more stably.

Further, referring to fig. 1-8, a baffle frame 11 is fixedly installed on the turning plate 31, a trigger piece 32 is fixedly installed at one end of the extruder 1, the trigger piece 32 comprises a vertical surface 321, a horizontal surface 322 and a transition surface 323, the vertical surface 321 is vertically arranged, the horizontal surface 322 is horizontally arranged, two ends of the transition surface 323 are respectively connected between the horizontal surface 322 and the vertical surface 321 and are in smooth transition through torsion, a trigger block 37 is fixedly installed below the corresponding end of the rotating rod 36, and the trigger block 37 is vertically arranged.

The trigger block 37 moves to contact with the trigger piece 32, the trigger block 37 contacts with one side of the vertical surface 321 and contacts with the transition surface 323 along with the movement, and under the torsion action of the transition surface 323, the trigger block 37 rotates and finally rotates to be in contact with the horizontal surface 322, so that the trigger block 37 rotates from the vertical state to the horizontal state, and the turning plate 31 is driven to turn over.

Further, referring to fig. 1 to 8, two heating plates 12 are fixedly installed on the supporting plate 46, the two heating plates 12 are respectively arranged above and below the extrusion lower die 5, heating wires are arranged in the extrusion upper die 61, a bottom plate 13 is fixedly installed on the supporting plate 46, and the bottom plate 13 is located at the position of the forming assembly 6.

When the extrusion lower die 5 moves between the two heating plates 12, the heating plates 12 heat the extrusion lower die 5 and the metal ring and the rubber ring inside, so that the rubber ring has certain fluidity in the subsequent extrusion forming process, and is formed into a specified shape, the heating time of the extrusion upper die 61 can be reduced, and the forming efficiency is improved.

The utility model provides a combination sealing washer, refer to fig. 9-10, includes holding ring 14 and elastic ring 15, and holding ring 14 cover is established on elastic ring 15, and the outer lane fixed mounting of elastic ring 15 has a plurality of anticreep piece 16, and a plurality of anticreep groove 17 has been seted up to the inner circle of holding ring 14, and anticreep piece 16 sets up in anticreep groove 17.

The anti-falling block 16 on the elastic ring 15 is formed in the anti-falling groove 17 of the supporting ring 14 by extrusion forming, so that the elastic ring 15 is effectively prevented from falling off from the supporting ring 14.

The support ring 14 is made of metal, and the elastic ring 15 is made of rubber.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.

Claims

1. A cutting device comprising a cutter (35), characterized in that: the cutter (35) can horizontally move, and after the cutter (35) horizontally moves, the hollow rubber material can be cut into rubber ring blanks; the cutter (35) is connected with a cutting assembly (3);

the cutting assembly (3) comprises a turning plate (31) and a trigger piece (32), when the cutter (35) cuts the extruded rubber material into rubber ring blanks, the cutter (35) moves to drive the turning plate (31) to be in contact with the trigger piece (32), the trigger piece (32) enables the turning plate (31) to rotate, and the turning plate (31) turns the rubber ring blanks onto the extrusion lower die (5);

the cutter (35) is arranged on the extrusion die head (2) of the extruder (1), the extrusion lower dies (5) are provided with a plurality of extrusion lower dies and are all arranged on the transmission assembly (4), one side of the extrusion die head (2) is provided with the forming assembly (6), and the transmission assembly (4) can transmit rubber ring blanks cut by the cutting assembly (3) to the forming assembly (6);

a metal lower molding cavity (51) and a rubber lower molding cavity (52) are formed in the extrusion lower die (5); the metal lower molding cavity (51) is communicated with the rubber lower molding cavity (52), and the metal lower molding cavity (51) is positioned outside the rubber lower molding cavity (52); the metal lower forming cavity (51) is used for placing a metal ring; the molding assembly (6) can mold rubber ring blanks in the rubber lower molding cavity (52) on corresponding metal rings;

the cutting assembly (3) further comprises a cutting hydraulic rod (33), a connecting plate (34), a rotating rod (36), a trigger block (37) and a torsion spring (38); the connecting plate (34) is fixedly arranged at the output end of the blanking hydraulic rod (33); the cutter (35) is fixedly arranged on the connecting plate (34), and the rotating rod (36) is fixedly arranged on the connecting plate (34); the turning plate (31) is rotatably connected to the rotating rod (36); one end of the torsion spring (38) is fixedly arranged on the rotating rod (36), and the other end of the torsion spring (38) is fixedly arranged on the turning plate (31); the trigger block (37) is fixedly arranged on the rotating rod (36), a hidden groove is formed in the connecting plate (34), the turning plate (31) is arranged in the hidden groove, the guide block (53) is fixedly arranged on the extrusion lower die (5), and the guide block (53) is in conical arrangement;

the transmission assembly (4) comprises a driving unit, a driving chain (41), a plurality of driving gears (42), a plurality of driving shafts (43) and a plurality of bearing plates (44), wherein the plurality of bearing plates (44) are fixedly arranged on the driving chain (41), the plurality of driving shafts (43) are fixedly arranged on the corresponding driving gears (42), and the driving gears (42) are meshed with the driving chain (41); the plurality of extrusion lower dies (5) are fixedly arranged on the corresponding bearing plates (44); the driving unit comprises a driving motor (45), a driving belt pulley, a driven belt pulley and a driving belt; the driving belt pulley is fixedly arranged at the output end of the driving motor (45); the driven belt pulley is fixedly arranged on one driving shaft (43), and the driving belt is connected to the driving belt pulley and the driven belt pulley;

the transmission assembly (4) further comprises a supporting plate (46), the driving shaft (43) is rotatably connected to the supporting plate (46), the forming assembly (6) comprises an upper extrusion die (61), a lower pressing plate (62) and a forming hydraulic rod (63), and the lower pressing plate (62) is fixedly arranged at the output end of the forming hydraulic rod (63); the extrusion upper die (61) is fixedly arranged on the lower pressing plate (62);

a metal upper forming cavity (71) and a rubber upper forming cavity (72) are formed in the extrusion upper die (61); the metal upper molding cavity (71) is communicated with the rubber upper molding cavity (72); the metal upper forming cavity (71) is matched with the metal lower forming cavity (51); the rubber upper molding cavity (72) is matched with the rubber lower molding cavity (52);

the device is characterized in that a baffle frame (11) is fixedly arranged on the turning plate (31), the trigger piece (32) is fixedly arranged at one end of the extruder (1), the trigger piece (32) comprises a vertical surface (321), a horizontal surface (322) and a transition surface (323), the vertical surface (321) is vertically arranged, the horizontal surface (322) is horizontally arranged, two ends of the transition surface (323) are respectively connected between the horizontal surface (322) and the vertical surface (321) and are in smooth transition through torsion, the trigger block (37) is fixedly arranged below the corresponding end part of the rotating rod (36), and the trigger block (37) is vertically arranged;

two heating plates (12) are fixedly mounted on the supporting plate (46), the two heating plates (12) are respectively arranged above and below the extrusion lower die (5), heating wires are arranged in the extrusion upper die (61), a bottom plate (13) is fixedly mounted on the supporting plate (46), and the bottom plate (13) is located at the position of the forming assembly (6).

2. A cutting apparatus according to claim 1, wherein: the forming assembly (6) further comprises a sliding rod (64) and a top plate (65); the sliding rod (64) is fixedly arranged on the supporting plate (46), and a sliding hole is formed in the lower pressing plate (62); the sliding rod (64) passes through the sliding hole and is in sliding fit with the sliding hole, and the top plate (65) is fixedly arranged at the top of the sliding rod (64); the forming hydraulic rod (63) is fixedly arranged on the top plate (65).

3. A cutting apparatus according to claim 1, wherein: one side of connecting plate (34) is provided with supporting shoe (8), fixed mounting has spacing (9) on supporting shoe (8), the both sides fixed mounting that corresponds spacing (9) on connecting plate (34) has stopper (10), fixed mounting has the guide block on stopper (10), the guide slot has been seted up on spacing (9), guide block sliding fit is in the guide slot.