Color master batch double-screw extruder with replaceable extruder die head

Abstract

The utility model discloses a color master batch double-screw extruder with a replaceable extruder die head, and aims to solve the technical problem that in the prior art, when the extruder die head is replaced, a fixing mechanism is firstly aligned, and then the extruder die head is fixed through a plurality of bolts, so that the disassembly and assembly are very inconvenient. The double-screw extruder comprises an extruder base, an extruder body, a feeding hopper and an extruder die head, the extruder body is mounted at the top of the extruder base, the feeding hopper is mounted at the top of the extruder body, and the extruder die head is arranged at the end of the extruder body. According to the double-screw extruder, a rotating hand wheel can drive a threaded rod to rotate through a rotating rod, rotation of a driving bevel gear and rotation of a driven bevel gear, the threaded rod rotates to drive a fastening clamping hook to move in the direction away from an extruder die head through a threaded hole, and when a protruding block of the fastening clamping hook moves to the outer portion of a clamping groove, the extruder die head is pulled to be disassembled; and therefore, the die head of the extruder can be replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of masterbatch twin-screw extruders, in particular to a masterbatch twin-screw extruder with a replaceable extruder die head. Background Art

[0002] A masterbatch twin-screw extruder is a mechanical device specifically used for producing masterbatches. Through the rotation and shearing action of the twin screws, it fully mixes, plasticizes, and melts the masterbatch raw materials with the carrier resin, and finally extrudes them into shape. The working principle of the masterbatch twin-screw extruder is mainly divided into four stages: mixing, plasticizing, melting, and extrusion. In the mixing stage, the masterbatch and polymer raw materials enter the twin-screw main unit through the feeding device and form a uniform material after mixing; in the plasticizing stage, the material is heated and compressed, gradually becoming a molten state; in the melting stage, the material is completely melted, forming a viscous flow state; in the extrusion stage, the material flows out of the die head and forms a continuous film or granular product after cooling and shaping. Existing twin-screw extruders have the following problems during use:

[0003] When replacing the extruder die head of the existing masterbatch twin-screw extruder, it is first necessary to align the fixing mechanism and then fix the extruder die head with multiple bolts. This disassembly and assembly structure is very inconvenient, time-consuming and labor-intensive, and is not convenient for quick replacement of the extruder die head. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a masterbatch twin-screw extruder with a replaceable extruder die head. The twin-screw extruder aims to solve the technical problem that in the existing technology, when replacing the extruder die head, the fixing mechanism needs to be aligned first, and then the extruder die head needs to be fixed by multiple bolts. This disassembly and assembly structure is very inconvenient, time-consuming and labor-intensive, and it is not convenient to quickly replace the extruder die head.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a masterbatch twin-screw extruder with a replaceable extruder die head, the twin-screw extruder comprising an extruder base, an extruder body, a feeding hopper and an extruder die head, the extruder body being mounted on the top of the extruder base, the feeding hopper being mounted on the top of the extruder body, and the extruder die head being provided at the end of the extruder body;

[0008] The end of the extruder body is connected to a docking head, a slot is provided on the surface of the docking head, two fastening hooks are inserted into the surface of the extruder die head close to the extruder body, a guide groove is provided on the side surface of the fastening hook, a guide rod is inserted into the inside of the guide groove, and the guide rod is connected to the inner wall of the extruder die head, a threaded hole is provided on the side surface of the fastening hook, a threaded rod is inserted into the inside of the threaded hole, a first bearing is installed between the threaded rod and the extruder die head, the end of the threaded rod is connected to a driven bevel gear, a second bearing is installed inside the extruder die head, a rotating rod is connected to the inside of the second bearing, the surface of the rotating rod is connected to the driving bevel gear, and the top of the rotating rod is connected to a hand wheel.

[0009] When using the twin-screw extruder of the present technical solution, rotating the handwheel can drive the active bevel gear to rotate through the rotating rod. When the active bevel gear rotates, it can drive the threaded rod to rotate through the driven bevel gear. The rotation of the threaded rod can drive the fastening hook to move away from the extruder die head through the threaded hole. When the protrusion of the fastening hook moves to the outside of the slot, the extruder die head can be pulled to remove it.

[0010] Preferably, the protrusion of the fastening hook matches the size of the slot, and the fastening hook forms a sliding connection with the guide rod through the guide slot. When the fastening hook is subjected to a force, the guide slot can be driven to slide on the surface of the guide rod, thereby limiting the movement direction of the fastening hook.

[0011] Furthermore, the threaded rod and the threaded hole are threadedly connected, and a rotating structure is formed between the threaded rod and the first bearing. The rotation of the threaded rod can drive the fastening hook to move horizontally through the threaded hole, thereby adjusting the position of the fastening hook.

[0012] Furthermore, a rotating structure is formed between the rotating rod and the second bearing, and an engaging structure is formed between the driving bevel gear and the driven bevel gear. The rotation of the handwheel can drive the rotating rod to rotate, the rotation of the rotating rod can drive the driving bevel gear to rotate, the rotation of the driving bevel gear can drive the driven bevel gear to rotate, and the rotation of the driven bevel gear can drive the threaded rod to rotate.

[0013] Furthermore, the inner wall of the feeding hopper is connected to a filter plate, a driven gear roller is provided inside the feeding hopper, and an active gear roller is provided inside the feeding hopper. The driven gear roller and the active gear roller are respectively connected to the feeding hopper through a third bearing, and the end of the driven gear roller is connected to a driven gear plate, and the end of the active gear roller is connected to the active gear plate, and the end of the active gear roller is connected to the output end of the driving motor.

[0014] Furthermore, a rotating structure is formed between the driven gear roller and the third bearing.

[0015] Furthermore, a rotating structure is formed between the active gear roller and the third bearing, and the operation of the driving motor can drive the active gear roller to rotate inside the third bearing.

[0016] Furthermore, a meshing structure is formed between the driven gear plate and the driven gear plate, and the rotation of the driving gear roller can drive the driving gear plate to rotate, and the rotation of the driving gear plate can drive the driven gear plate to rotate in the opposite direction, and the reverse rotation of the driven gear plate can drive the driven gear roller to rotate in the opposite direction.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model can rotate the hand wheel to drive the active bevel gear to rotate through the rotating rod, and when the active bevel gear rotates, the threaded rod can be driven to rotate through the driven bevel gear. The rotation of the threaded rod can drive the fastening hook to move in a direction away from the extruder die head through the threaded hole. When the protrusion of the fastening hook moves to the outside of the card slot, the extruder die head can be pulled to remove it, thereby completing the replacement of the extruder die head.

[0020] According to the utility model, after the masterbatch raw material particles are put into the interior of the feeding hopper, the smaller ones can fall through the filter plate, and the larger masterbatch raw material particles can fall from the end of the filter plate to between the driven gear roller and the active gear roller. The driving motor can drive the active gear roller to rotate and drive the driven gear roller to rotate in the opposite direction through the active gear plate and the driven gear plate. The larger masterbatch raw material particles can be crushed by the driven gear roller and the active gear roller, so that the masterbatch raw material particles can be heated and melted inside the extruder main body, thereby avoiding the masterbatch raw material particles with larger particles from being unable to be completely melted and causing blockage at the outlet of the extruder die head. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of a specific embodiment of the device of the utility model;

[0022] Figure 2 This is a schematic diagram of the extruder die head installation structure of a specific embodiment of the device of the utility model;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the extruder die head of a specific embodiment of the device of the utility model;

[0024] Figure 4 A longitudinal sectional view of the extruder die head installation structure of a specific embodiment of the device of the utility model;

[0025] Figure 5 This is a cross-sectional view of the extruder die head installation structure of a specific embodiment of the device of the utility model;

[0026] Figure 6 This is a schematic diagram of the feeding hopper structure of a specific embodiment of the device of the utility model;

[0027] Figure 7 This is a longitudinal sectional view of the feeding hopper structure of a specific embodiment of the device of the utility model;

[0028] Figure 8 This is a cross-sectional view of the feeding hopper structure of a specific implementation of the device of the utility model.

[0029] The markings in the accompanying drawings are: 1. Extruder base; 2. Extruder body; 3. Feed hopper; 4. Extruder die head; 5. Docking head; 6. Card slot; 7. Fastening hook; 8. Guide groove; 9. Guide rod; 10. Threaded hole; 11. Threaded rod; 12. First bearing; 13. Driven bevel gear; 14. Second bearing; 15. Rotating rod; 16. Driving bevel gear; 17. Handwheel; 18. Filter plate; 19. Driven gear roller; 20. Driving gear roller; 21. Third bearing; 22. Driven gear plate; 23. Driving gear plate; 24. Drive motor. DETAILED DESCRIPTION Example 1:

[0030] This specific embodiment is a masterbatch twin-screw extruder with a replaceable extruder die head, and its structural diagram is shown as follows: Figure 1-8 As shown, the twin-screw extruder includes an extruder base 1, an extruder body 2, a feeding hopper 3 and an extruder die head 4. The extruder body 2 is installed on the top of the extruder base 1, the feeding hopper 3 is installed on the top of the extruder body 2, and the extruder die head 4 is provided at the end of the extruder body 2;

[0031] The end of the extruder body 2 is connected to a docking joint 5, and a slot 6 is provided on the surface of the docking joint 5. Two fastening hooks 7 are inserted on the surface of the extruder die head 4 close to the extruder body 2. A guide groove 8 is provided on the side surface of the fastening hook 7. A guide rod 9 is inserted inside the guide groove 8. The guide rod 9 is connected to the inner wall of the extruder die head 4. A threaded hole 10 is provided on the side surface of the fastening hook 7. A threaded rod 11 is inserted inside the threaded hole 10. A first bearing 12 is installed between the threaded rod 11 and the extruder die head 4. A driven bevel gear 13 is connected to the end of the threaded rod 11. A second bearing 14 is installed inside the extruder die head 4. A rotating rod 15 is connected to the inside of the second bearing 14. The surface of the rotating rod 15 is connected to the active bevel gear 16, and the top of the rotating rod 15 is connected to a hand wheel 17. Example 2:

[0032] Among them, the protrusion of the fastening hook 7 matches the size of the slot 6, the fastening hook 7 forms a sliding connection with the guide rod 9 through the guide groove 8, the threaded rod 11 and the threaded hole 10 are threadedly connected, the threaded rod 11 and the first bearing 12 form a rotating structure, the rotating rod 15 and the second bearing 14 form a rotating structure, and the driving bevel gear 16 and the driven bevel gear 13 form an engaging structure.

[0033] In addition, a filter plate 18 is connected to the inner wall of the feeding hopper 3, a driven gear roller 19 is provided inside the feeding hopper 3, and a driving gear roller 20 is provided inside the feeding hopper 3. The driven gear roller 19 and the driving gear roller 20 are respectively connected to the feeding hopper 3 through a third bearing 21, and the end of the driven gear roller 19 is connected to a driven gear plate 22, and the end of the driving gear roller 20 is connected to a driving gear plate 23. The end of the driving gear roller 20 is connected to the output end of the driving motor 24, and a rotating structure is formed between the driven gear roller 19 and the third bearing 21, a rotating structure is formed between the driving gear roller 20 and the third bearing 21, and a meshing structure is formed between the driven gear plate 22 and the driven gear plate 22.

[0034] Working principle: When the device of the present technical solution is used, when the extruder die head 4 needs to be replaced, the hand wheel 17 can be rotated, and when the hand wheel 17 is rotated, the rotating rod 15 can be driven to rotate, and the rotating rod 15 can be driven to rotate to drive the active bevel gear 16, and when the active bevel gear 16 is rotated, the driven bevel gear 13 can be driven to rotate, and the driven bevel gear 13 can be driven to rotate to drive the threaded rod 11, and the threaded rod 11 can be driven to move laterally through the threaded hole 10 to drive the fastening hook 7 to move laterally, and when the fastening hook 7 moves laterally, it can drive the guide groove 8 on the surface of the guide rod 9 to move away from the extruder die head 4, and when the protrusion of the fastening hook 7 moves to the outside of the groove 6, the extruder die head 4 can be pulled to one side, so that the extruder The die head 4 is removed, and then the new extruder die head 4 drives the fastening hook 7 to be stuck in the innermost part of the surface of the docking head 5, and then the hand wheel 17 can be rotated in the opposite direction. When the hand wheel 17 is rotated in the opposite direction, the rotating rod 15 can be driven to rotate in the opposite direction. The reverse rotation of the rotating rod 15 can drive the active bevel gear 16 to rotate in the opposite direction. The reverse rotation of the active bevel gear 16 can drive the driven bevel gear 13 to rotate in the opposite direction. The reverse rotation of the driven bevel gear 13 can drive the threaded rod 11 to rotate in the opposite direction. The reverse rotation of the threaded rod 11 can drive the fastening hook 7 to move toward the inside of the extruder die head 4 through the threaded hole 10. The fastening hook 7 continues to move toward the inside of the extruder die head 4 to tighten the extruder die head 4 and the docking head 5, thereby completing the replacement of the extruder die head 4;

[0035] The masterbatch raw material particles are put into the interior of the feeding hopper 3. When the masterbatch raw material particles fall on the surface of the inclined filter plate 18, the masterbatch raw material particles with smaller sizes can fall through the filter plate 18, and the masterbatch raw material particles with larger sizes can fall from the end of the filter plate 18 to between the driven gear roller 19 and the active gear roller 20. At this time, the driving motor 24 is running to drive the active gear roller 20 to rotate, and the rotation of the active gear roller 20 can drive the active gear plate 23 to rotate. The rotation of the active gear plate 23 can drive the driven gear plate 22 to rotate in the opposite direction. The reverse rotation of the driven gear plate 22 can drive the driven gear roller 19 to rotate in the opposite direction. When the driven gear roller 19 and the active gear roller 20 rotate, the larger masterbatch raw material particles can be crushed and then fall into the interior of the extruder main body 2. The masterbatch raw material particles falling into the extruder main body 2 can be heated, melted and conveyed, and finally can be extruded inside the extruder die head 4.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A twin-screw extruder for color masterbatch with a replaceable extruder die head, the twin-screw extruder comprising an extruder base (1), an extruder body (2), a feeding hopper (3) and an extruder die head (4), characterized in that: An extruder body (2) is installed on the top of the extruder base (1), a feeding hopper (3) is installed on the top of the extruder body (2), and an extruder die head (4) is provided at the end of the extruder body (2); The end of the extruder body (2) is connected to a docking joint (5), a surface of the docking joint (5) is provided with a slot (6), and the surface of the extruder die head (4) close to the extruder body (2) is plugged with two fastening hooks (7), the side surface of the fastening hook (7) is provided with a guide groove (8), the inside of the guide groove (8) is plugged with a guide rod (9), the guide rod (9) is connected to the inner wall of the extruder die head (4), the side surface of the fastening hook (7) is provided with a threaded hole (10), the threaded hole (11) is provided with a screw thread (12), and the screw thread (13) is provided with a screw thread (14). A threaded rod (11) is inserted into the interior of the hole (10), a first bearing (12) is installed between the threaded rod (11) and the extruder die head (4), the end of the threaded rod (11) is connected to a driven bevel gear (13), a second bearing (14) is installed inside the extruder die head (4), a rotating rod (15) is connected through the interior of the second bearing (14), a driving bevel gear (16) is connected to the surface of the rotating rod (15), and a hand wheel (17) is connected to the top of the rotating rod (15).

2. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 1, characterized in that: The protrusion of the fastening hook (7) matches the size of the slot (6), and the fastening hook (7) forms a sliding connection with the guide rod (9) through the guide slot (8).

3. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 2, characterized in that: The threaded rod (11) and the threaded hole (10) are threadedly connected, and a rotating structure is formed between the threaded rod (11) and the first bearing (12).

4. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 3, characterized in that: A rotating structure is formed between the rotating rod (15) and the second bearing (14), and an engaging structure is formed between the driving bevel gear (16) and the driven bevel gear (13).

5. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 1, characterized in that: The inner wall of the feeding hopper (3) is connected to a filter plate (18), a driven gear roller (19) is provided inside the feeding hopper (3), and a driving gear roller (20) is provided inside the feeding hopper (3), the driven gear roller (19) and the driving gear roller (20) are respectively connected to the feeding hopper (3) through a third bearing (21), the end of the driven gear roller (19) is connected to a driven gear plate (22), the end of the driving gear roller (20) is connected to a driving gear plate (23), and the end of the driving gear roller (20) is connected to the output end of the driving motor (24).

6. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 5, characterized in that: A rotating structure is formed between the driven gear roller (19) and the third bearing (21).

7. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 6, characterized in that: A rotating structure is formed between the active gear roller (20) and the third bearing (21).

8. The masterbatch twin-screw extruder with a replaceable extruder die head according to claim 7, characterized in that: A meshing structure is formed between the driven gear plates (22) and the driven gear plates (22).

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