Double-screw extruder with waste recovery function

Abstract

The utility model belongs to the field of double-screw extruders, and particularly relates to a double-screw extruder with a waste recovery function, which comprises a machine body, a support plate is fixedly connected to the right end of the machine body, a waste recovery mechanism is arranged on the support plate, and an extrusion port is slidably connected to the inside of the right end of the machine body. Two symmetrically-distributed connecting columns are fixedly connected to the upper portion of the right end of the machine body, and limiting frames are installed on the outer sides of the connecting columns through bearings. The limiting frame, the limiting seat, the fixing cover and other structures are additionally arranged on the machine body, the extrusion opening can be limited through the limiting frame in the using process, meanwhile, the limiting frame is positioned through sliding connection between the limiting seat and the fixing frame, when the extrusion opening needs to be disassembled, only the limiting seat needs to be separated from the fixing frame, and the extrusion opening can be disassembled. And then the limiting frame is turned over to release the limiting of the extrusion opening, so that the extrusion opening is more convenient to replace.

Description

Technical Field

[0001] This utility model relates to the technical field of twin-screw extruders, specifically a twin-screw extruder with waste recycling function. Background Technology

[0002] Twin-screw extruders are widely used in polymer material processing, food, and pharmaceutical fields. According to patent authorization announcement number CN222875247U, a conical twin-screw extruder with waste recycling function is provided. This utility model provides a conical twin-screw extruder with waste recycling function, comprising: a machine body; a recycling component is arranged on the inner side of the machine body; and a disassembly component is arranged on the inner side of the machine body and to the right of the recycling component; the recycling component includes an extrusion chamber located on the left side of the machine body. This utility model provides a conical twin-screw extruder with waste recycling function. After the disassembly plate is removed, by holding the handle, the connecting plate moves to the right on the circumferential side of the limiting slide bar, thereby causing the scraper ring located on the inner wall of the extrusion chamber to move to the right.

[0003] However, in this technology, the extruder shapes the molten raw material through the extrusion nozzle. When processing workpieces of different shapes, the extrusion nozzle needs to be changed, but the nozzle is inconvenient to disassemble, affecting processing efficiency. Furthermore, during the initial operation of the extruder, the extruded material is prone to deformation due to temperature, generating waste that is difficult to recycle. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a twin-screw extruder with waste recycling function, which solves the problems of inconvenient extrusion nozzle replacement and inconvenient waste recycling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a twin-screw extruder with waste recycling function, comprising a machine body, a support plate fixedly connected to the right end of the machine body, a waste recycling mechanism provided on the support plate, an extrusion port slidably connected inside the right end of the machine body, two symmetrically distributed connecting columns fixedly connected to the upper part of the right end of the machine body, a limit frame installed on the outer side of the connecting columns via bearings, a fixing frame fixedly connected to the upper end of the limit frame, a fixing cover fixedly connected to the upper left part of the machine body, a connecting pin slidably connected inside the fixing cover, a limit seat fixedly connected to one end of the connecting pin, a spring provided on the outer side of the connecting pin, and an end cap installed on the upper end of the machine body.

[0006] Preferably, the limiting seat is slidably connected to the fixing frame, and the limiting seat is slidably connected to the fixing cover. The limiting seat can position the limiting frame through the fixing frame.

[0007] Preferably, one end of the spring is fixedly connected to the fixed cover, and the other end of the spring is fixedly connected to the limiting seat. The spring can automatically reset the limiting seat by its elastic force.

[0008] Preferably, a sealing ring is slidably connected to the outside of the extrusion port, and the sealing ring is fixedly connected to the machine body. The sealing ring can seal the connection between the extrusion port and the machine body.

[0009] Preferably, the limiting frame is in contact with the extrusion port, and the limiting frame is rotatably connected to the machine body, so that the limiting frame can limit the extrusion port.

[0010] Preferably, the waste recycling mechanism includes a fixed rod, two symmetrically distributed fixed rods are fixedly connected to the upper end of the support plate, a movable plate is slidably connected to the upper outer side of the fixed rod, a cutting blade is fixedly connected to the lower end of the movable plate, a spring is provided on the outer side of the fixed rod, and two symmetrically distributed handles are fixedly connected to the outer side of the movable plate. The cutting blade can separate the waste, making the waste easy to recycle.

[0011] Preferably, one end of the second spring is fixedly connected to the support plate, and the other end of the second spring is fixedly connected to the movable plate. The second spring can support the movable plate through its elastic force.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model adds a limiting frame, a limiting seat, and a fixing cover to the machine body. During use, the limiting frame can limit the extrusion port, and the limiting frame is positioned by the sliding connection between the limiting seat and the fixing frame. When it is necessary to disassemble the extrusion port, simply detach the limiting seat from the fixing frame and then flip the limiting frame to release the limitation on the extrusion port, thereby making it easier to replace the extrusion port.

[0014] 2. This utility model, by adding a fixed rod, a cutting blade, and a moving plate to the support plate, allows the cutting blade to move when the extruder generates waste material. During the movement, the cutting blade can cut the waste material, making it easy to remove and recycle. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A magnified sectional view of the local structure;

[0017] Figure 3 For the present utility model Figure 2 A 3D magnified view of the movable plate;

[0018] Figure 4 For the present utility model Figure 1 A magnified 3D view of the extrusion nozzle;

[0019] Figure 5 For the present utility model Figure 2 Enlarged view of the A-section structure;

[0020] Figure 6 For the present utility model Figure 5 A 3D magnified view of the limit frame.

[0021] In the diagram: 1. Machine body; 2. Support plate; 3. Waste recycling mechanism; 4. Extrusion port; 5. Connecting column; 6. Limiting frame; 7. Fixing frame; 8. Fixing cover; 9. Connecting nail; 10. Limiting seat; 11. Spring 1; 12. Sealing ring; 13. End cap; 31. Fixing rod; 32. Moving plate; 33. Cutting knife; 34. Handle; 35. Spring 2. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 A twin-screw extruder with waste recycling function includes a machine body 1. A support plate 2 is fixedly connected to the right end of the machine body 1. A waste recycling mechanism 3 is provided on the support plate 2. An extrusion port 4 is slidably connected inside the right end of the machine body 1. Two symmetrically distributed connecting columns 5 are fixedly connected to the upper part of the right end of the machine body 1. A limit frame 6 is installed on the outside of the connecting columns 5 through bearings. A fixing frame 7 is fixedly connected to the upper end of the limit frame 6. A fixing cover 8 is fixedly connected to the upper left part of the machine body 1. A connecting pin 9 is slidably connected inside the fixing cover 8. A limit seat 10 is fixedly connected to one end of the connecting pin 9. A spring 11 is provided on the outside of the connecting pin 9. An end cover 13 is installed on the upper end of the machine body 1.

[0024] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6The limiting seat 10 is slidably connected to the fixed frame 7 and the fixed cover 8. The limiting seat 10 can position the limiting frame 6 through the fixed frame 7. One end of the spring 11 is fixedly connected to the fixed cover 8 and the other end of the spring 11 is fixedly connected to the limiting seat 10. The spring 11 can automatically reset the limiting seat 10 through its elastic force. A sealing ring 12 is slidably connected to the outside of the extrusion port 4. The sealing ring 12 is fixedly connected to the machine body 1. The sealing ring 12 can seal the connection between the extrusion port 4 and the machine body 1. The limiting frame 6 is in contact with the extrusion port 4 and is rotatably connected to the machine body 1. The limiting frame 6 can limit the extrusion port 4.

[0025] Please see Figure 1 , Figure 2 , Figure 3 The waste recycling mechanism 3 includes a fixed rod 31. Two symmetrically distributed fixed rods 31 are fixedly connected to the upper end of the support plate 2. A movable plate 32 is slidably connected to the upper outer side of the fixed rod 31. A cutting blade 33 is fixedly connected to the lower end of the movable plate 32. A second spring 35 is provided on the outer side of the fixed rod 31. Two symmetrically distributed handles 34 are fixedly connected to the outer side of the movable plate 32. The cutting blade 33 can separate the waste, making the waste easy to recycle. One end of the second spring 35 is fixedly connected to the support plate 2, and the other end of the second spring 35 is fixedly connected to the movable plate 32. The second spring 35 can support the movable plate 32 with its elastic force.

[0026] The specific implementation process of this utility model is as follows: During use, the raw material is extruded through the extrusion port 4 inside the machine body 1. If waste is generated after extrusion, the cutting blade 33 below the moving plate 32 is moved downward by the handle 34, and the spring 35 is compressed. During the downward movement of the cutting blade 33, the waste can be cut. After the cutting is completed, the handle 34 is released and the spring 35 returns to its original position. The spring 35 can drive the moving plate 32 and the cutting blade 33 to return to their original position through its elasticity, so that the waste can be easily cut and recycled.

[0027] When it is necessary to replace the extrusion port 4, push the limiting seat 10. The limiting seat 10 compresses the spring 11. When the limiting seat 10 disengages from the fixing frame 7, the limiting of the fixing frame 7 can be released. Then, the fixing frame 7 drives the limiting frame 6 to deflect. When the limiting frame 6 disengages from the extrusion port 4, the limiting of the extrusion port 4 can be released. Then, remove the current extrusion port 4 and insert the required extrusion port 4 into the machine body 1. After insertion, rotate the limiting frame 6 to reset. After the limiting frame 6 resets, release the limiting seat 10. The spring 11 resets. The spring 11 can use its elasticity to drive the limiting seat 10 to slide into the fixing frame 7, thus completing the replacement of the extrusion port 4.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A twin-screw extruder with waste recycling function, comprising a machine body (1), characterized in that: A support plate (2) is fixedly connected to the right end of the machine body (1). A waste recycling mechanism (3) is provided on the support plate (2). An extrusion port (4) is slidably connected inside the right end of the machine body (1). Two symmetrically distributed connecting columns (5) are fixedly connected to the upper part of the right end of the machine body (1). A limit frame (6) is installed on the outside of the connecting column (5) through a bearing. A fixed frame (7) is fixedly connected to the upper end of the limit frame (6). A fixed cover (8) is fixedly connected to the left part of the upper end of the machine body (1). A connecting nail (9) is slidably connected inside the fixed cover (8). A limit seat (10) is fixedly connected to one end of the connecting nail (9). A spring (11) is provided on the outside of the connecting nail (9). An end cap (13) is installed on the upper end of the machine body (1).

2. The twin-screw extruder with waste recycling function according to claim 1, characterized in that: The limiting seat (10) is slidably connected to the fixing frame (7), and the limiting seat (10) is slidably connected to the fixing cover (8).

3. A twin-screw extruder with waste recycling function according to claim 1, characterized in that: One end of the spring (11) is fixedly connected to the fixed cover (8), and the other end of the spring (11) is fixedly connected to the limiting seat (10).

4. A twin-screw extruder with waste recycling function according to claim 1, characterized in that: A sealing ring (12) is slidably connected to the outside of the extrusion port (4), and the sealing ring (12) is fixedly connected to the body (1).

5. A twin-screw extruder with waste recycling function according to claim 1, characterized in that: The limiting frame (6) contacts the extrusion port (4), and the limiting frame (6) is rotatably connected to the machine body (1).

6. A twin-screw extruder with waste recycling function according to claim 1, characterized in that: The waste recycling mechanism (3) includes a fixed rod (31). Two symmetrically distributed fixed rods (31) are fixedly connected to the upper end of the support plate (2). A movable plate (32) is slidably connected to the upper outer side of the fixed rod (31). A cutting blade (33) is fixedly connected to the lower end of the movable plate (32). A spring (35) is provided on the outer side of the fixed rod (31). Two symmetrically distributed handles (34) are fixedly connected to the outer side of the movable plate (32).

7. A twin-screw extruder with waste recycling function according to claim 6, characterized in that: One end of the second spring (35) is fixedly connected to the support plate (2), and the other end of the second spring (35) is fixedly connected to the moving plate (32).

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