Extrusion device for easy-to-dry non-deformation plastic production
By combining sieve screening and crushing blades to process raw materials of different volumes, the problem of insufficient melting of large-volume raw materials in existing equipment has been solved, enabling the normal production of easily dried and non-deformable plastics.
Patent Information
- Application Number
- CN202520351409.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-03
AI Technical Summary
When existing extrusion equipment heats raw materials of easily dry and non-deformable plastics, materials with large volume differences are prone to insufficient melting, which leads to the inability to extrude normally in subsequent production processes.
The system combines a screen structure with crushing blades to process raw materials of different volumes through screening and cutting, ensuring that large-volume raw materials are crushed to an appropriate size before being heated and melted.
This effectively avoids the phenomenon of insufficient melting of large-volume raw materials, ensuring that subsequent raw materials can be extruded normally, and supporting the production of easy-to-dry and non-deformable plastics.
Smart Images
Figure CN223933951U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic production technology, and in particular to an extrusion device for producing plastics that are easy to dry and do not deform. Background Technology
[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to plastic production is also constantly improving. In the production and processing of easy-drying and non-deformable plastics, it is necessary to use extrusion equipment to heat and melt the raw materials and then extrude them.
[0003] Currently used extrusion equipment often feeds materials with large volume differences into the equipment for heating and melting when processing easily dryable, non-deformable plastic raw materials. This can lead to insufficient melting of large-volume materials during the heating process, preventing subsequent extrusion and hindering the production of easily dryable, non-deformable plastics. Utility Model Content
[0004] The purpose of this invention is to address the following shortcomings in the existing technology: when the extrusion device currently used heats and melts the raw materials of easy-to-dry, non-deformable plastics, raw materials with large differences in volume are directly fed into the equipment for heating. During the heating process, large-volume raw materials are prone to insufficient melting, which makes it impossible for subsequent raw materials to be extruded normally, which is not conducive to the production of easy-to-dry, non-deformable plastics. Therefore, an extrusion device for the production of easy-to-dry, non-deformable plastics is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An extrusion device for producing easily dryable and non-deformable plastics includes an extruder body and a storage box. A feeding hopper is fixedly installed on the storage box. An installation cavity is opened inside the storage box. A first screen is rotatably installed on one inner wall of the installation cavity. A second screen is fixedly installed on the other inner wall of the installation cavity. A triangular block is fixedly connected to the upper surface of the second screen.
[0007] The second screen is provided with a rotating assembly, which includes a rotating shaft rotatably mounted on the second screen. A support plate is fixedly connected to the rotating shaft. One end of the support plate is in contact with the lower surface of the first screen. The bottom of the storage box is provided with a discharge port. A rotating rod is rotatably mounted inside the storage box. Multiple crushing blades are fixedly connected to the rotating rod. A moving assembly is provided inside the mounting cavity.
[0008] Preferably, the moving component includes a reciprocating screw rotatably mounted inside the mounting cavity, a slider threadedly connected to the reciprocating screw, and a plurality of rake bars arranged at equal intervals fixedly mounted on the bottom of the slider.
[0009] Preferably, a cam is fixedly connected to one end of the reciprocating lead screw that passes through the mounting cavity, and a deflection block with an L-shaped cross-section is fixedly connected to one end of the rotating shaft.
[0010] Preferably, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the surface of the storage box.
[0011] Preferably, a groove is formed on one side of the inner wall of the mounting cavity, one end of the slider is slidably connected to the groove, and the cross-section of the slider is rectangular.
[0012] Preferably, pulleys are fixedly connected to both the reciprocating lead screw and the rotating rod, and the two pulleys are connected by a transmission belt.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] As the rake moves back and forth with the slider, it rakes and separates the raw material above the first screen, preventing it from accumulating. This allows smaller pieces of material to pass through the first screen quickly. When the support plate changes from a vertical to an inclined position, the first screen tilts downwards under gravity, causing larger pieces of material to slide onto the second screen. As multiple crushing blades rotate, they cut and crush the larger pieces of material on the second screen. Once crushed to a suitable size, the material can pass through the second screen and fall into the discharge port for further heating. This effectively prevents insufficient melting of large pieces of material during subsequent heating, allowing for proper extrusion and facilitating the production of easily dried, non-deformable plastics. Attached Figure Description
[0015] Figure 1 This is a front structural diagram of an extrusion device for producing easily dry and non-deformable plastics proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the back of an extrusion device for producing easily dry and non-deformable plastics, as proposed in this utility model.
[0017] Figure 3 This is a schematic diagram of the internal structure of the storage bin in this utility model.
[0018] Figure 4 This is a front structural diagram of the cam and transmission belt in this utility model.
[0019] In the diagram: 1 Extruder body, 2 Rotary shaft, 3 Storage box, 4 Feed hopper, 5 Cam, 6 Deflection block, 7 Second screen, 8 Slider, 9 Reciprocating screw, 10 Rake bar, 11 First screen, 12 Support plate, 13 Triangular block, 14 Rotating rod, 15 Crushing blade, 16 Slide groove, 17 Transmission belt. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0022] Reference Figures 1-4 An extrusion device for producing easily dryable and non-deformable plastics includes an extruder body 1 and a storage tank 3. A feeding hopper 4 is fixedly installed on the storage tank 3. An installation cavity is opened inside the storage tank 3. A first screen 11 is rotatably installed on one side of the inner wall of the installation cavity, and a second screen 7 is fixedly installed on the other side of the inner wall of the installation cavity. A triangular block 13 is fixedly connected to the upper surface of the second screen 7. A rotating assembly is provided on the second screen 7. The rotating assembly includes a rotating shaft 2 rotatably installed on the second screen 7. A support plate 12 is fixedly connected to the rotating shaft 2. One end of the support plate 12 is attached to the lower surface of the first screen 11. A discharge port is opened at the bottom of the storage tank 3. A rotating rod 14 is rotatably installed inside the storage tank 3. Multiple crushing blades 15 are fixedly connected to the rotating rod 14. A moving assembly is provided inside the installation cavity.
[0023] The moving component includes a reciprocating screw 9 rotatably installed inside the mounting cavity. A slider 8 is threaded onto the reciprocating screw 9. Multiple rake bars 10 are fixedly installed at equal intervals on the bottom of the slider 8. When the slider 8 moves along the reciprocating screw 9, the rake bars 10 slide back and forth with the slider 8, thus rakeing the raw material above the first screen 11. A cam 5 is fixedly connected to one end of the reciprocating screw 9 that passes through the mounting cavity. A deflector block 6 with an L-shaped cross-section is fixedly connected to one end of the rotating shaft 2. A torsion spring is sleeved on the rotating shaft 2. One end of the torsion spring is fixedly connected to the rotating shaft 2, and the other end of the torsion spring is fixedly connected to the surface of the storage box 3. When the cam 5 rotates against the upper surface of the deflector block 6, the rotating shaft 2 and the support plate 12 will rotate together. The torsion spring will deform, and after the support plate 12 changes from a vertical state to an inclined state, the support plate 12 will always be located directly below the first screen 11.
[0024] A groove 16 is provided on one side of the inner wall of the mounting cavity. One end of the slider 8 is slidably connected to the groove 16. The cross-section of the slider 8 is rectangular. Only a part of the reciprocating screw 9 is provided with reciprocating threads. The slider 8 can only move back and forth on the right side of the crushing blade 15. The rake bar 10 will not contact the crushing blade 15. The groove 16 can restrict the movement trajectory of the slider 8. The cylindrical slider 8 can prevent raw materials from accumulating on the surface. Pulleys are fixedly connected to both the reciprocating screw 9 and the rotating rod 14. The two pulleys are connected by a transmission belt 17. During the process of the servo motor driving the rotating rod 14 to rotate, the reciprocating screw 9 will be driven to rotate together under the joint transmission action of the two pulleys and the transmission belt 17.
[0025] In this invention, during use, easily dryable, non-deformable plastic raw materials are intermittently and repeatedly fed into the feeding hopper 4. Simultaneously, the servo motor drives the rotating rod 14 to rotate. The bottom of the feeding hopper 4 is connected to the mounting cavity, and the raw materials inside the feeding hopper 4 fall onto the first screen 11. Smaller raw materials pass through the screen holes on the first screen 11 and are discharged from the outlet for subsequent heating and melting. Larger raw materials remain above the first screen 11. During the rotation of the rotating rod 14, the reciprocating screw 9 is driven to rotate under the combined transmission action of the two pulleys and the transmission belt 17. The slider 8 moves along the reciprocating screw 9, and the rake bar 10 slides back and forth with the slider 8, thus rakeing the raw materials above the first screen 11 to prevent the raw materials from accumulating above the first screen 11, so that smaller raw materials can quickly pass through the first screen 11.
[0026] During the rotation of cam 5, it will repeatedly squeeze and detach from the upper surface of deflector block 6. In the initial state, the upper surface of support plate 12 is in contact with the lower surface of first screen 11, at which time the first screen 11 is in a horizontal state. As cam 5 rotates against the upper surface of deflector block 6, the rotating shaft 2 and support plate 12 will rotate together, the torsion spring will deform, and after support plate 12 changes from a vertical state to an inclined state, the first screen 11 will deflect downward under the action of gravity. The large volume of raw material above the first screen 11 will slide onto the relatively smooth inclined surface of triangular block 13, and then the raw material will slide onto the second screen 7. During the rotation of multiple crushing blades 15, the large volume of raw material on the second screen 7 will be cut and crushed. After the large volume of raw material is crushed into a suitable size, it can pass through the second screen 7 and fall into the discharge port for subsequent heating. This can effectively avoid the phenomenon that the large volume of raw material is not fully melted during subsequent heating, so that the subsequent raw material can be extruded normally, which is beneficial to the production of easy-to-dry and non-deformable plastics.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An extrusion apparatus for producing easily dryable and non-deformable plastics, comprising an extruder body (1) and a storage bin (3), characterized in that, A feeding hopper (4) is fixedly installed on the storage box (3). An installation cavity is opened inside the storage box (3). A first screen (11) is rotatably installed on one side of the inner wall of the installation cavity. A second screen (7) is fixedly installed on the other side of the inner wall of the installation cavity. A triangular block (13) is fixedly connected to the upper surface of the second screen (7). The second screen (7) is provided with a rotating assembly, which includes a rotating shaft (2) rotatably mounted on the second screen (7). A support plate (12) is fixedly connected to the rotating shaft (2). One end of the support plate (12) is in contact with the lower surface of the first screen (11). The bottom of the storage box (3) is provided with a discharge port. A rotating rod (14) is rotatably mounted inside the storage box (3). Multiple crushing blades (15) are fixedly connected to the rotating rod (14). A moving assembly is provided inside the mounting cavity.
2. The extrusion apparatus for producing easily dry, non-deformable plastics according to claim 1, characterized in that... The moving component includes a reciprocating screw (9) rotatably mounted inside the mounting cavity, a slider (8) threadedly connected to the reciprocating screw (9), and a plurality of rake bars (10) arranged at equal intervals fixedly mounted on the bottom of the slider (8).
3. The extrusion apparatus for producing easily dryable and non-deformable plastics according to claim 2, characterized in that, The reciprocating lead screw (9) is fixedly connected to a cam (5) at one end of the mounting cavity, and a deflection block (6) with an L-shaped cross-section is fixedly connected to one end of the rotating shaft (2).
4. The extrusion apparatus for producing easily dryable and non-deformable plastics according to claim 1, characterized in that, A torsion spring is fitted on the rotating shaft (2), one end of the torsion spring is fixedly connected to the rotating shaft (2), and the other end of the torsion spring is fixedly connected to the surface of the storage box (3).
5. The extrusion apparatus for producing easily dryable and non-deformable plastics according to claim 2, characterized in that, A groove (16) is provided on one side of the inner wall of the mounting cavity. One end of the slider (8) is slidably connected to the groove (16). The cross-section of the slider (8) is rectangular.
6. The extrusion apparatus for producing easily dryable and non-deformable plastics according to claim 2, characterized in that, Both the reciprocating lead screw (9) and the rotating rod (14) are fixedly connected to pulleys, and the two pulleys are connected by a transmission belt (17).