Double-screw extruder

Abstract

The utility model belongs to the field of extruders, in particular relates to a double-screw extruder, and aims to solve the problems that raw materials added into a feed hopper cannot be conveyed by the conventional double-screw extruder, basically enter an extrusion barrel by means of gravitation, possibly block the bottom of the feed hopper by the raw materials, and cannot operate integrally. The device comprises a base, two stand columns are symmetrically and fixedly connected to the top of the base, the same extrusion cylinder is fixedly connected to the tops of the two stand columns, a transmission box is fixedly connected to the left side of the extrusion cylinder, an extrusion assembly is arranged on the transmission box, a feeding hopper is fixedly connected to the left side of the top of the extrusion cylinder, and a supporting frame is fixedly connected to the right side of the feeding hopper; the position of the spiral transmission rod can be adjusted according to actual requirements, the height of the spiral transmission rod can be adjusted according to actual requirements, raw materials can be conveyed to the extrusion barrel, and blocking of the raw materials is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a double-screw extruder. Background Art

[0002] Twin-screw extruder is a tool for homogenizing the composition of materials in a molten state. It has the advantages of high working reliability, strong self-lubrication ability and less residual material. In recent years, it has been widely used. Its performance mainly depends on the working state of the screw and the performance of the structure. The design level and manufacturing quality of the screw are the core key to ensure its excellent performance. However, the existing twin-screw extruder cannot transmit the raw materials added to the feed hopper. They basically enter the extrusion barrel by gravity, which may cause the raw materials to block the bottom of the feed hopper and the whole cannot operate. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that the twin-screw extruder cannot transmit the raw materials added into the feed hopper, and basically relies on gravity to enter the extrusion barrel, which may cause the raw materials to block the bottom of the feed hopper and make the whole unable to operate, and thus proposes a twin-screw extruder.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A twin-screw extruder comprises a base, wherein two columns are symmetrically fixedly connected to the top of the base, and the tops of the two columns are fixedly connected to the same extrusion barrel, a transmission box is fixedly connected to the left side of the extrusion barrel, and an extrusion assembly is arranged on the transmission box, a feed hopper is fixedly connected to the left side of the top of the extrusion barrel, and a support frame is fixedly connected to the right side of the feed hopper, two first motors are symmetrically fixedly installed on the right side of the support frame, and the two first motors are both provided with a transmission assembly, a U-shaped frame is fixedly connected to the transmission assembly, and a material transfer assembly is arranged on the U-shaped frame, the extrusion assembly comprises a second motor fixedly installed on the transmission box, and a main gear is fixedly connected to the output shaft of the second motor, a slave gear is meshedly connected to the main gear, and a spiral extrusion rod is fixedly connected to the slave gear and the right side of the main gear, and the left side of the slave gear is rotated and connected to the It is connected to the transmission box, and the spiral extrusion rod is rotatably connected to the extrusion barrel, the transmission assembly includes a first threaded rod fixedly connected to the output shaft of the first motor, and the first threaded rod is threadedly connected to a threaded sleeve, the top of the threaded sleeve is fixedly connected to a support frame, and two sliding blocks are symmetrically fixedly connected to the left side of the bottom of the support frame, the U-shaped frame is fixedly connected to the support frame, the material transmission assembly includes a bidirectional motor fixedly installed on the U-shaped frame, and the output shafts on both sides of the bidirectional motor are fixedly connected to a transmission shaft, a first bevel gear is fixedly connected to the transmission shaft, and the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected to a second threaded rod, and the second threaded rod is threadedly connected to a support rod, a third motor is fixedly installed on the support rod, and a spiral transmission rod is fixedly connected to the output shaft of the third motor.

[0006] Preferably, a same slide groove is provided on the top of the feed hopper and the left side of the top of the support frame, and the slider is slidably connected in the slide groove.

[0007] Preferably, the first threaded rod is rotatably connected to the support frame, and the threaded sleeve is slidably connected to the top of the support frame.

[0008] Preferably, a rotating frame is rotatably connected to the transmission shaft, and the rotating frame is fixedly connected to the U-shaped frame, the second threaded rod is rotatably connected to the U-shaped frame, and the support rod is slidably connected to the inner walls on both sides of the U-shaped frame.

[0009] In the utility model, the twin-screw extruder has the following beneficial effects:

[0010] Because a base, a column, an extrusion barrel, a transmission box, a second motor, a main gear, a slave gear, and a spiral extrusion rod are provided, the second motor is started, the output shaft of the second motor drives the main gear to operate, the main gear drives the slave gear to operate, and the slave gear and the main gear drive the spiral extrusion rod to operate, so that the raw materials can be mixed and extruded.

[0011] Due to the provision of a feed hopper, a support frame, a first motor, a first threaded rod, a threaded sleeve, a support frame, a slider and a slide groove, the raw materials are put into the feed hopper, the first motor is started, the output shaft of the first motor drives the first threaded rod to operate, the first threaded rod drives the threaded sleeve to operate, the threaded sleeve drives the support frame to move, and the support frame drives the slider to slide in the slide groove, so that the position of the spiral transmission rod can be adjusted according to actual needs.

[0012] Due to the provision of a U-shaped frame, a bidirectional motor, a transmission shaft, a first bevel gear, a second bevel gear, a second threaded rod, a support rod, a third motor, a spiral transmission rod, and a rotating frame, the bidirectional motor is started, and the output shaft of the bidirectional motor drives the transmission shaft to operate, the transmission shaft drives the first bevel gear to operate, the first bevel gear drives the second bevel gear to operate, the second bevel gear drives the second threaded rod to operate, the second bevel gear drives the support rod to operate, the support rod drives the spiral transmission rod into the feed hopper, so that the height of the spiral transmission rod can be adjusted according to actual needs, the third motor is started, and the output shaft of the third motor drives the spiral transmission rod to operate, so that the raw materials can be transmitted to the extrusion barrel to prevent the raw materials from being blocked.

[0013] The utility model can adjust the position of the spiral transmission rod according to actual needs, and adjust the height of the spiral transmission rod according to actual needs, and can transmit the raw materials to the extrusion barrel to prevent the raw materials from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of a twin-screw extruder proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of the transmission box of a twin-screw extruder proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of a support frame of a double-screw extruder proposed by the utility model;

[0017] Figure 4 The utility model is a schematic diagram of a top view of the feed hopper of a twin-screw extruder.

[0018] In the figure: 1. base; 2. column; 3. extruder; 4. transmission box; 5. feed hopper; 6. support frame; 7. first motor; 8. U-shaped frame; 9. second motor; 10. main gear; 11. slave gear; 12. spiral extruder rod; 13. first threaded rod; 14. threaded sleeve; 15. support frame; 16. slider; 17. bidirectional motor; 18. transmission shaft; 19. first bevel gear; 20. second bevel gear; 21. second threaded rod; 22. support rod; 23. third motor; 24. spiral transmission rod; 25. slideway; 26. rotating frame. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1

[0021] Reference Figure 1-Figure 4 A twin-screw extruder comprises a base 1, two uprights 2 are symmetrically fixedly connected to the top of the base 1, and the tops of the two uprights 2 are fixedly connected to the same extrusion barrel 3, a transmission box 4 is fixedly connected to the left side of the extrusion barrel 3, and an extrusion assembly is arranged on the transmission box 4, a feed hopper 5 is fixedly connected to the left side of the top of the extrusion barrel 3, and a support frame 6 is fixedly connected to the right side of the feed hopper 5, two first motors 7 are symmetrically fixedly installed on the right side of the support frame 6, and the two first motors 7 are both provided with a transmission assembly, a U-shaped frame 8 is fixedly connected to the transmission assembly, and a material transmission assembly is arranged on the U-shaped frame 8, a same slide groove 25 is opened on the top of the feed hopper 5 and the left side of the top of the support frame 6, and a slider 16 is slidably connected in the slide groove 25, and the material transmission assembly comprises a bidirectional motor 17 fixedly installed on the U-shaped frame 8, and a transmission shaft 18 is fixedly connected to the output shafts on both sides of the bidirectional motor 17, a first bevel gear 19 is fixedly connected to the transmission shaft 18, and the first bevel gear 19 is meshingly connected to the second bevel gear 2 0, a second bevel gear 20 is fixedly connected to a second threaded rod 21, and a support rod 22 is threadedly connected to the second threaded rod 21, a third motor 23 is fixedly mounted on the support rod 22, and a spiral transmission rod 24 is fixedly connected to the output shaft of the third motor 23, a transmission assembly includes a first threaded rod 13 fixedly connected to the output shaft of the first motor 7, and a threaded sleeve 14 is threadedly connected to the first threaded rod 13, a support frame 15 is fixedly connected to the top of the threaded sleeve 14, and two sliders 16 are symmetrically fixedly connected to the left side of the bottom of the support frame 15, a U-shaped frame 8 is fixedly connected to the support frame 15, an extrusion assembly includes a second motor 9 fixedly mounted on a transmission box 4, and a main gear 10 is fixedly connected to the output shaft of the second motor 9, a slave gear 11 is meshedly connected to the main gear 10, and a spiral extrusion rod 12 is fixedly connected to the right side of the slave gear 11 and the main gear 10, the slave gear 11 is rotatably connected to the transmission box 4 on the left side, and the spiral extrusion rod 12 is rotatably connected to the extrusion barrel 3.

[0022] In the present invention, the first threaded rod 13 is rotatably connected to the support frame 6 , and the threaded sleeve 14 is slidably connected to the top of the support frame 6 .

[0023] In the utility model, the transmission shaft 18 is rotatably connected with a rotating frame 26, and the rotating frame 26 is fixedly connected to the U-shaped frame 8, the second threaded rod 21 is rotatably connected to the U-shaped frame 8, and the support rod 22 is slidably connected to the inner walls on both sides of the U-shaped frame 8.

[0024] In the utility model, the second motor 9 is started, the output shaft of the second motor 9 drives the main gear 10 to operate, the main gear 10 drives the slave gear 11 to operate, the slave gear 11 and the main gear 10 drive the spiral extrusion rod 12 to operate, so that the raw materials can be mixed and extruded, and the raw materials are put into the feed hopper 5, the first motor 7 is started, the output shaft of the first motor 7 drives the first threaded rod 13 to operate, the first threaded rod 13 drives the threaded sleeve 14 to operate, the threaded sleeve 14 drives the support frame 15 to move, and the support frame 15 drives the slider 16 to slide in the slide groove 25, so that the position of the spiral transmission rod 24 can be adjusted according to actual needs. , start the bidirectional motor 17, the output shaft of the bidirectional motor 17 drives the transmission shaft 18 to operate, the transmission shaft 18 drives the first bevel gear 19 to operate, the first bevel gear 19 drives the second bevel gear 20 to operate, the second bevel gear 20 drives the second threaded rod 21 to operate, the second threaded rod 21 drives the support rod 22 to operate, the support rod 22 drives the spiral transmission rod 24 to enter the feed hopper 5, so that the height of the spiral transmission rod 24 can be adjusted according to actual needs, start the third motor 23, and the output shaft of the third motor 23 drives the spiral transmission rod 24 to operate, so that it can transmit the raw material to the extrusion barrel 3 to prevent the raw material from being blocked.

[0025] Embodiment 2

[0026] The difference between this embodiment and the first embodiment is that a cleaning component is provided inside the extrusion barrel 3 so as to clean the inner wall of the extrusion barrel 3 .

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A twin-screw extruder, comprising a base (1), characterized in that: Two upright posts (2) are symmetrically fixedly connected to the top of the base (1), and the tops of the two upright posts (2) are fixedly connected to the same extrusion barrel (3), a transmission box (4) is fixedly connected to the left side of the extrusion barrel (3), and an extrusion assembly is arranged on the transmission box (4), a feed hopper (5) is fixedly connected to the left side of the top of the extrusion barrel (3), and a support frame (6) is fixedly connected to the right side of the feed hopper (5), two first motors (7) are symmetrically fixedly installed on the right side of the support frame (6), and the two first motors (7) are both provided with a transmission assembly, a U-shaped frame (8) is fixedly connected to the transmission assembly, and a material transfer assembly is arranged on the U-shaped frame (8).

2. A twin-screw extruder according to claim 1, characterized in that: The extrusion assembly comprises a second motor (9) fixedly mounted on a transmission box (4), and a main gear (10) is fixedly connected to the output shaft of the second motor (9), a slave gear (11) is meshingly connected to the main gear (10), and a spiral extrusion rod (12) is fixedly connected to the right side of the slave gear (11) and the main gear (10), the left side of the slave gear (11) is rotatably connected to the transmission box (4), and the spiral extrusion rod (12) is rotatably connected to the extrusion barrel (3).

3. A twin-screw extruder according to claim 1, characterized in that: The transmission assembly comprises a first threaded rod (13) fixedly connected to an output shaft of a first motor (7), a threaded sleeve (14) being threadedly connected to the first threaded rod (13), a support frame (15) being fixedly connected to the top of the threaded sleeve (14), and two sliding blocks (16) being symmetrically fixedly connected to the left side of the bottom of the support frame (15), and the U-shaped frame (8) being fixedly connected to the support frame (15).

4. A twin-screw extruder according to claim 1, characterized in that: The material transmission assembly comprises a bidirectional motor (17) fixedly mounted on the U-shaped frame (8), and transmission shafts (18) are fixedly connected to output shafts on both sides of the bidirectional motor (17), a first bevel gear (19) is fixedly connected to the transmission shaft (18), and a second bevel gear (20) is meshingly connected to the first bevel gear (19), a second threaded rod (21) is fixedly connected to the second bevel gear (20), and a support rod (22) is threadedly connected to the second threaded rod (21), a third motor (23) is fixedly mounted on the support rod (22), and a spiral transmission rod (24) is fixedly connected to the output shaft of the third motor (23).

5. A twin-screw extruder according to claim 1, characterized in that: The top of the feed hopper (5) and the left side of the top of the support frame (6) are provided with a same slide groove (25), and the slider (16) is slidably connected in the slide groove (25).

6. A twin-screw extruder according to claim 3, characterized in that: The first threaded rod (13) is rotatably connected to the support frame (6), and the threaded sleeve (14) is slidably connected to the top of the support frame (6).

7. A twin-screw extruder according to claim 4, characterized in that: A rotating frame (26) is rotatably connected to the transmission shaft (18), and the rotating frame (26) is fixedly connected to the U-shaped frame (8), the second threaded rod (21) is rotatably connected to the U-shaped frame (8), and the support rod (22) is slidably connected to the inner walls on both sides of the U-shaped frame (8).

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