Preforming extrusion die

Abstract

The utility model relates to the technical field of preforming extrusion dies, in particular to a preforming extrusion die which comprises a die body, a bottom plate is fixedly connected to the bottom face of the die body, a connecting disc is fixedly connected to the outer side wall of the die body, and an extrusion head is fixedly installed in the connecting disc and close to the middle position. Fixing shells are fixedly connected to the positions, close to the two sides, of the outer side wall of the mold body, fixing blocks are fixedly installed in the two fixing shells, movable strips are inserted into the outer side walls of the two fixing blocks, and cutting blades are fixedly connected to one ends of the two movable strips. The situation that residues of the rubber raw materials and external dirt adhere to the cutting blade and affect subsequent cutting operation is avoided, the flatness of the rubber raw materials subjected to subsequent cutting extrusion forming is guaranteed, the sponge plate is convenient to replace, and the situation that too much dirt adhere to the sponge plate after long-term use and the cleaning effect on the cutting blade is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to preforming extrusion die technical field, concretely is a kind of preforming extrusion die. BACKGROUND

[0002] Rubber extrusion die is a kind of forming die, mainly used in the production of rubber products, forming die is the tool for forming article, this kind of tool is made of various parts, different dies are made of different parts, rubber extrusion die is widely used in multiple industries, such as machine tool, electrical appliance, instrument and power equipment, for producing door and window sealing strip, waterproof sealing ring washer and shockproof sealing gasket and other rubber products.

[0003] In prior art, such as the patent application number "CN201921358337.4" proposes a kind of rubber preforming machine, the utility model is extruded from the discharge port after the rubber material that is extruded by extrusion device, drive assembly works and drives first cutting blade and second cutting blade to move towards, to cut off rubber material, so that the incision section of rubber material remains flat.

[0004] But in the above patent application, preforming extrusion die needs to cut off the formed rubber raw material after extruding the rubber raw material, two cutting blades are used to cut off the formed rubber raw material, but because rubber raw material has certain viscosity, rubber raw material is easy to remain on blade, dirt in working environment can also be attached to blade, leading to the occlusion of blade, affecting the flatness of outer wall of blade, leading to that when cutting rubber raw material subsequently, the flatness of cutting place cannot be guaranteed. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of preforming extrusion die to solve the problems raised in the above background.

[0006] The utility model can be realized by the following technical solutions:

[0007] A kind of preforming extrusion die, including die main body, the bottom surface of the die main body is fixedly connected with bottom plate, the outer lateral wall of the die main body is fixedly connected with connecting disc, the inside of the connecting disc is fixedly installed with extrusion head near middle position, the outer lateral wall of the die main body is fixedly connected with fixed shell near both sides positions, the inside of two fixed shells is fixedly installed with fixed block, the outer lateral wall of two fixed blocks is inserted with movable strip, the one end of two movable strips is fixedly connected with cutting blade, the inside of two fixed shells is provided with cleaning mechanism, the upper end surface of two fixed shells is connected with flap by hinge;

[0008] The cleaning mechanism comprises a connecting shaft and two bearing plates, both of which are movably installed at the inner position of the fixed shell, and the outer side walls of both of the bearing plates are fixedly connected with two telescopic connecting rods.

[0009] Preferably, the outer parts of the two telescopic connecting rods are both sleeved with supporting springs.

[0010] Preferably, the connecting shaft is rotatably connected at the inner side wall of the fixed shell, one end of the connecting shaft is fixedly connected with a gear, the outer side wall of the fixed shell is provided with a motor one, and the output end of the motor one is connected with one end of the connecting shaft.

[0011] Preferably, the outer side walls of both of the bearing plates are both inserted with an insertion plate, and the outer side wall of the insertion plate is fixedly connected with a sponge plate.

[0012] Preferably, the outer side walls of both of the bearing plates are both inserted with an insertion plate, and the outer side wall of the insertion plate is fixedly connected with a sponge plate.

[0013] Preferably, the outer side walls of both of the bearing plates are both inserted with an insertion plate, and the outer side wall of the insertion plate is fixedly connected with a sponge plate.

[0014] Preferably, the outer side walls of both of the bearing plates are both inserted with an insertion plate, and the outer side wall of the insertion plate is fixedly connected with a sponge plate.

[0015] The utility model discloses the beneficial effect of:

[0016] 1, the utility model discloses a motor one gear cooperation tooth groove and movable strip can make cutter blade sliding insertion between two bearing plates, under the action of supporting spring elasticity, cooperation telescopic connecting rod elongation can make the sponge plate extrude to the outer side wall of cutter blade, and closely adhere to the outer side wall of cutter blade, and another sponge plate closely adheres to the other outer side wall of cutter blade in the same way, and when the cutter blade's cutting edge moves between two sponge plates, under the action of supporting spring elasticity, the sponge plate can also closely adhere to the cutting edge, and the two sponge plates closely adhere to the outer wall of movable cutter blade, so that the cutter blade can be automatically and comprehensively cleaned after each cutting, avoid the residue of rubber raw materials and external dirt adhered to the cutter blade, influence the subsequent cutting operation, guarantee the flatness of the rubber raw material of subsequent cutting extrusion forming.

[0017] 2. In this utility model, by opening the flip cover and unscrewing the screws off the stop, the obstruction and fixation of the insert plate can be released, allowing the insert plate and sponge plate to be removed from the inside of the fixed shell. Similarly, the insert plate can be installed on another sponge plate and reinserted into the carrier plate. Then, one end of the stop is rotated to the upper surface of the insert plate, and the position of the insert plate is fixed on the carrier plate by screws and screw holes, thereby fixing the position of the sponge plate. Through the above operations, it is easy to replace the sponge plate and avoid excessive dirt adhering to the sponge plate after long-term use, which would affect the cleaning effect on the cutting blade. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the extrusion tube in this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is a cross-sectional view of the fixing shell in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the bearing plate and the sponge plate in this utility model;

[0024] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.

[0025] The attached figures are labeled as follows:

[0026] 1. Base plate; 2. Mold body; 3. Extrusion tube; 4. Extrusion head; 5. Fixed shell; 6. Cutting blade; 7. Movable strip; 8. Spiral conveyor pipe; 9. Feeding bin; 10. Support plate; 11. Bearing plate; 12. Telescopic connecting rod; 13. Connecting shaft; 14. Gear; 15. Fixing block; 16. Sponge board; 17. Stop block; 18. Gear groove; 19. Inclined plate; 20. Insert plate; 21. Connecting plate; 22. Flip cover; 23. Screw. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] A pre-forming extrusion die, such as Figures 1-6 As shown, the mold includes a mold body 2, a base plate 1 fixedly connected to the bottom surface of the mold body 2, a connecting plate 21 fixedly connected to the outer wall of the mold body 2, an extrusion head 4 fixedly installed inside the connecting plate 21 near the middle position, and fixed shells 5 fixedly connected to the outer walls of the mold body 2 near both sides. Fixed blocks 15 are fixedly installed inside the two fixed shells 5, and movable strips 7 are inserted into the outer walls of the two fixed blocks 15. A cutter blade 6 is fixedly connected to one end of each of the two movable strips 7. A cleaning mechanism is provided inside each of the two fixed shells 5. A flip cover 22 is connected to the upper surface of each of the two fixed shells 5 by a hinge. The cleaning mechanism includes a connecting shaft 13 and two bearing plates 11. The two bearing plates 11 are movably installed inside the fixed shells 5, and two telescopic connecting rods 12 are fixedly connected to the outer walls of each of the two bearing plates 11.

[0029] A support plate 10 is fixedly connected to the upper surface of the base plate 1 at the end away from the mold body 2. An extrusion tube 3 is fixedly installed on the outer wall of the support plate 10, and the end of the extrusion tube 3 away from the support plate 10 is fixedly connected to the mold body 2. A feeding bin 9 is fixedly installed on the outer wall of the extrusion tube 3 near one end. A spiral conveying pipe 8 is rotatably connected inside the extrusion tube 3. A motor 2 is installed at the end of the extrusion tube 3 away from the mold body 2, and the output end of the motor 2 is connected to one end of the spiral conveying pipe 8.

[0030] In use, the rubber raw material is fed into the extrusion tube 3 through the feeding bin 9, and then the spiral conveying tube 8 is rotated by the motor 2, which drives the rubber raw material to be conveyed along the inside of the extrusion tube 3 to the mold body 2, and then extruded by the extrusion head 4 installed in the connecting plate 21, thus completing the pre-forming extrusion operation of the rubber raw material.

[0031] The connecting shaft 13 is rotatably connected to the inner wall of the fixed shell 5. A gear 14 is fixedly connected to one end of the connecting shaft 13. A motor is installed on the outer wall of the fixed shell 5, and the output end of the motor is connected to one end of the connecting shaft 13. Several toothed grooves 18 are opened on the upper surface of the movable bar 7, and the several toothed grooves 18 are meshed with the gear 14.

[0032] Specifically, after the rubber raw material is extruded and molded, it is extruded to the required length. When it needs to be cut off, the motor one installed on the fixed shell 5 drives the connecting shaft 13 to rotate, thereby driving the gear 14 to rotate, cooperating with each tooth groove 18, driving the movable strip 7 to move, thereby driving the cutter blade 6 to move towards the direction of the extruded rubber raw material. Similarly, the other cutter blade 6 also moves towards the direction of the extruded rubber raw material, so that the two cutter blades 6 move towards each other, cutting the extruded rubber raw material neatly and ensuring the flatness of the cut.

[0033] The two telescopic connecting rods 12 are fixedly connected to the inner side wall of the fixed shell 5 at positions away from the bearing plate 11. The outer part of each telescopic connecting rod 12 is sleeved with a supporting spring. One end of each bearing plate 11 is fixedly connected with an inclined plate 19. The outer side wall of each bearing plate 11 is inserted with an insertion plate 20. The outer side wall of the insertion plate 20 is fixedly connected with a sponge plate 16. The sponge plate 16 has a flexible feature and can be tightly attached to the outer wall of the cutter blade 6 with the elastic force of the supporting leg spring.

[0034] Specifically, after the rubber raw material is cut off, the motor one is reversed, cooperating with the gear 14 and the tooth groove 18, driving the movable strip 7 to move, thereby driving the cutter blade 6 to move towards the direction of the fixed shell 5, and gradually moving between the two inclined plates 19 inside the fixed shell 5, sliding and inserting between the two bearing plates 11. Continue to move. During this process, the insertion of the cutter blade 6 increases the distance between the two bearing plates 11, shortens the telescopic connecting rod 12, and compresses the supporting spring. Then, under the action of the elastic force of the supporting spring, the telescopic connecting rod 12 is elongated, driving the bearing plate 11 and the sponge plate 16 installed thereon to extrude the outer side wall of the cutter blade 6, so that the sponge plate 16 can tightly attach to the outer side wall of the cutter blade 6. Similarly, the other sponge plate 16 tightly attaches to the other outer side wall of the cutter blade 6. Similarly, when the cutting edge of the cutter blade 6 moves between the two sponge plates 16, the sponge plate 16 can be tightly attached to the cutting edge under the action of the elastic force of the supporting spring, so that the two sponge plates 16 tightly wipe the moving cutter blade 6, thereby automatically and comprehensively cleaning the cutter blade 6 after each cutting, avoiding the residues of the rubber raw material and external dirt adhering to the cutter blade 6, affecting the subsequent cutting operation, and ensuring the flatness of the rubber raw material after the subsequent cutting and extrusion molding.

[0035] The end surface of the bearing plate 11 near the two sides is rotatably connected with a stop block 17 through a shaft. The upper end surface of the stop block 17 near one end is inserted with a screw 23. The upper end surface of the insertion plate 20 near the two sides is provided with a screw hole, which is matched with the screw 23.

[0036] Specific, open the flip 22, and then the screw 23 from the block 17 on the turn out, at this time can be turned out from the block 17 one end of the plug plate 20, remove the resistance to the plug plate 20, and then the plug plate 20 from the inside of the bearing plate 11 up to draw out, can drive the sponge plate 16 from the fixed shell 5 inside the move out, similarly can be installed on the other sponge plate 16 plug plate 20 reinserted into the inside of the bearing plate 11, and then the block 17 one end to rotate to the plug plate 20 upper end surface position, and the screw 23 through the block 17 rotate to the screw hole in the plug plate 20 can be fixed in the bearing plate 11, so as to fix the position of the sponge plate 16, through the above operation, convenient to replace the sponge plate 16, avoid the sponge plate 16 after long-term use of more dirt, affect the cleaning effect of the cutter blade 6.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A preform extrusion die comprising a die body (2) characterised in that, The bottom surface of the mold body (2) is fixedly connected with a bottom plate (1), the outer side wall of the mold body (2) is fixedly connected with a connecting disc (21), an extrusion head (4) is fixedly installed inside the connecting disc (21) near the middle position, the outer side wall of the mold body (2) is fixedly connected with a fixed shell (5) near both sides, two fixed blocks (15) are fixedly installed inside the two fixed shells (5), two movable strips (7) are inserted into the outer side wall of the two fixed blocks (15), two cutter blades (6) are fixedly connected to one end of the two movable strips (7), and cleaning mechanisms are arranged inside the two fixed shells (5), and a flip cover (22) is hingedly connected to the upper end surface of the two fixed shells (5). The cleaning mechanism comprises a connecting shaft (13) and two bearing plates (11), and the two bearing plates (11) are movably installed inside the fixed shell (5).

2. A preform extrusion die according to claim 1, wherein The two movable strips (7) are rotatably connected to the upper end surface of the two bearing plates (11) through shaft rods.

3. A preform extrusion die according to claim 1, wherein The connecting shaft (13) is rotatably connected to the inner side wall of the fixed shell (5), one end of the connecting shaft (13) is fixedly connected with a gear (14), and a motor one is installed on the outer side wall of the fixed shell (5), and the output end of the motor one is connected with one end of the connecting shaft (13).

4. A preform extrusion die according to claim 3, wherein The upper end surface of the movable strip (7) is provided with a plurality of tooth grooves (18), and the plurality of tooth grooves (18) are meshed with the gear (14).

5. A preform extrusion die according to claim 4, wherein One end of each of the two bearing plates (11) is fixedly connected with an inclined plate (19), and an insertion plate (20) is inserted into the outer side wall of each of the two bearing plates (11).

6. A preform extrusion die according to claim 5, wherein, The upper end surface of the bearing plate (11) is rotatably connected with a stop block (17) through a shaft rod near both sides, a screw (23) is inserted into the upper end surface of the stop block (17) near one end, and a screw hole is formed in the upper end surface of the insertion plate (20) near both sides, and the screw hole is matched with the screw (23).

7. A preform extrusion die according to claim 1 wherein, The upper end surface of the bottom plate (1) is fixedly connected with a support plate (10) away from the mold body (2), the outer side wall of the support plate (10) is fixedly installed with an extrusion pipe (3), and the extrusion pipe (3) is fixedly connected with the mold body (2) away from the support plate (10), a feeding bin (9) is fixedly installed on the outer wall of the extrusion pipe (3) near one end, a spiral conveying pipe (8) is rotatably connected inside the extrusion pipe (3), and a motor two is installed on the extrusion pipe (3) away from the mold body (2), and the output end of the motor two is connected with one end of the spiral conveying pipe (8).

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