Feeding device of extruder for plastic processing
By designing the sliding and cutting blade system of the feeding device, the problem of plastic raw materials blocking the discharge port is solved, and the effective crushing and screening of large pieces of plastic are achieved, ensuring the normal operation and service life of the plastic extruder.
Patent Information
- Application Number
- CN202422673005.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-04
AI Technical Summary
When feeding plastic raw materials into existing plastic processing extrusion devices, large pieces of plastic are easily stuck in the discharge port or inside the extruder, affecting normal operation and service life.
A feeding device for an extruder used in plastic processing is designed. It includes a feeding box, a sliding column, a screening box, a cutting blade, and a motor drive system. Through the cooperation of the sliding and cutting blades, larger pieces of plastic can be crushed and screened to ensure that the plastic meets the conveying requirements of the extruder.
Effectively crush and screen larger pieces of plastic to avoid clogging the discharge port and ensure the normal operation and service life of the plastic extruder.
Smart Images
Figure CN223354886U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of feeding equipment, in particular to a feeding device of an extruder for plastic processing. Background Art
[0002] In plastic extrusion molding equipment, plastic extruder is usually called the main machine, and its supporting subsequent equipment plastic extrusion molding machine is called auxiliary machine. After more than 100 years of development, plastic extruder has evolved from the original single screw to twin screw, multi-screw, and even screwless models. Plastic extruder (main machine) can be matched with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat wires, strapping tapes, extruded mesh, plates (sheets), profiles, granulation, cable coating, etc. to form various plastic extrusion molding production lines and produce various plastic products.
[0003] In an existing plastic processing extrusion device, when feeding plastic raw materials, the sizes and shapes of the plastic raw materials are different. Therefore, if they are directly fed into the plastic extruder, large pieces of plastic are likely to get stuck at the discharge port, or larger pieces of plastic raw materials are likely to get stuck inside the plastic extruder, affecting the normal operation of the plastic extruder, causing the plastic extruder to overload and shortening its service life. Therefore, a feeding device for a plastic processing extruder is proposed to solve the above-mentioned problems. Utility Model Content
[0004] (1) Technical problems solved
[0005] In response to the shortcomings of the existing technology, the utility model provides a feeding device for an extruder for plastic processing, which has the advantages of crushing larger block plastics and screening the plastics to facilitate the transportation and heating and melting of the plastic extruder. It solves the problem that the plastic raw materials are too large and blocked at the discharge port, affecting the subsequent transportation of the plastic raw materials to the plastic extruder and affecting the normal operation of the plastic extruder.
[0006] (2) Technical solution
[0007] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: A feeding device of an extruder for plastic processing comprises a feeding box, wherein the interior of the feeding box is slidingly connected with three sliding columns distributed in a linear array, the left sides of the three sliding columns are fixedly connected with a screening box, the outer sides of the three sliding columns are fixedly connected with a spring, the left side of the screening box is fixedly connected with a connecting column slidingly connected to the interior of the feeding box, the left side of the connecting column is fixedly connected with a connecting plate, the left side of the feeding box is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a rotating column, the outer side of the rotating column is fixedly connected with a cam, the interior of the feeding box is rotatably connected with a fixed column, and the outer side of the fixed column is fixedly connected with a cutting blade.
[0008] The beneficial effects of the utility model are:
[0009] The feeding device of the plastic processing extruder has the advantages of crushing larger block plastics and screening the plastics to facilitate the transportation and heating and melting of the plastics extruder.
[0010] On the basis of the above technical solution, the present invention can also be improved as follows.
[0011] Furthermore, a second motor is fixedly connected to the top of the loading box, an output shaft of the second motor is fixedly connected to the fixed column, and a fixed frame rotatably connected to the rotating column is fixedly connected to the left side of the loading box.
[0012] Furthermore, a synchronization column is fixedly connected to the left side of the screening box. The number of the synchronization columns is two and they are symmetrically distributed. Both of the two synchronization columns are slidably connected to the inside of the feeding box.
[0013] The beneficial effect of adopting the above further solution is that the synchronization column enables the screening box to slide with the sliding of the connecting column, and at the same time supports the outer side of the screening box to ensure the reciprocating motion of the screening box and screen out small pieces of plastic.
[0014] Furthermore, a screening hole is provided at the bottom of the screening box, a sliding hopper is fixedly connected to the bottom of the feeding box, and a plastic extruder body is provided at the bottom of the sliding hopper.
[0015] Furthermore, the number of the cutting blades is three and they are distributed in a linear array, and a feed hopper is fixedly connected to the top of the loading box.
[0016] The beneficial effect of adopting the above further solution is that it is convenient to put the plastic raw materials into the screening box for screening, and it is convenient to crush larger pieces of plastic raw materials, which is convenient for subsequent processing.
[0017] Furthermore, a control panel is fixedly connected to the outside of the feeding box, an opening and closing cover is hingedly provided inside the feeding box, an opening and closing door is hingedly provided inside the screening box, and the outside of the opening and closing door is rotatably connected to a block that engages with the inside of the screening box.
[0018] The beneficial effect of adopting the above further solution is that the control panel controls the screening and crushing of the plastic raw materials, and the interior of the screening box is regularly cleaned by punching and opening and closing the cover and door to prevent the plastic raw materials from clogging the screening holes of the screening box. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the utility model;
[0020] Figure 2This is a schematic diagram of the structure of the connecting plate of the utility model;
[0021] Figure 3 This is a schematic diagram of the fixed column structure of the utility model;
[0022] Figure 4 This is a schematic diagram of the opening and closing door structure of the utility model;
[0023] Figure 5 This is a schematic diagram of the cutting blade structure of the utility model.
[0024] In the figure: 1. Feeding box; 2. Sliding column; 3. Screening box; 4. Spring; 5. Connecting column; 6. Connecting plate; 7. First motor; 8. Rotating column; 9. Cam; 10. Fixed column; 11. Cutting blade; 12. Second motor; 13. Synchronous column; 14. Screen hole; 15. Sliding hopper; 16. Plastic extruder body; 17. Feed hopper; 18. Control panel; 19. Opening and closing cover; 20. Fixed frame; 21. Opening and closing door. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] In the embodiment, Figure 1-5 A feeding device for an extruder for plastic processing is given. The utility model includes a feeding box 1. The feeding box 1 is internally slidably connected to three sliding columns 2 distributed in a linear array. The left sides of the three sliding columns 2 are fixedly connected to a screening box 3. The outer sides of the three sliding columns 2 are fixedly connected to a spring 4. The left side of the screening box 3 is fixedly connected to a connecting column 5 that is slidably connected to the inside of the feeding box 1. The left side of the connecting column 5 is fixedly connected to a connecting plate 6. The left side of the feeding box 1 is fixedly connected to a first motor 7. The output shaft of the first motor 7 is fixedly connected to a rotating column 8. The outer side of the rotating column 8 is fixedly connected to a cam 9. The interior of the feeding box 1 is rotatably connected to a fixed column 10. The outer side of the fixed column 10 is fixedly connected to a cutting blade 11.
[0027] After that, the cam 9 is started, and the connecting plate 6 is moved closer to the end of the feeding box 1, thereby making the connecting plate 6 drive the connecting column 5 to slide inside the upper feeding box 1, and then the connecting column 5 drives the screening box 3 to slide to the right inside the feeding box 1, and then makes the sliding column 2 slide to the outside of the upper feeding box 1, the elastic potential energy of the spring 4 increases, making the spring 4 compressed, and then the cam 9 protruding part is away from the connecting plate 6, so that the spring 4 recovers, and the elastic potential energy of the spring 4 is converted into a thrust for the sliding column 2 to drive the screening box 3 to slide to the left, and so on, making the screening box 3 reciprocate, so that the small pieces of plastic inside the screening box 3 are screened to the bottom of the feeding box 1, and the larger pieces of plastic remain in the screening box 3. At this moment, the second motor 12 is started, so that the second motor 12 drives the fixed column 10 to rotate, so that the cutting blade 11 rotates, cutting and crushing the plastic raw material, thereby facilitating the screening of plastic particles under the screening box 3.
[0028] Specifically, refer to Figure 2 and Figure 3 The top of the loading box 1 is fixedly connected to a second motor 12, the output shaft of the second motor 12 is fixedly connected to the fixed column 10, and the left side of the loading box 1 is fixedly connected to a fixed frame 20 rotatably connected to the rotating column 8.
[0029] In this embodiment, the second motor 12 is started, so that the second motor 12 drives the fixed column 10 to rotate, thereby rotating the cutting blade 11 to cut and crush the plastic raw material, thereby facilitating the plastic particles to be screened down to the screening box 3.
[0030] Specifically, refer to Figure 5 A synchronization column 13 is fixedly connected to the left side of the screening box 3. There are two synchronization columns 13 and they are symmetrically distributed. Both synchronization columns 13 are slidably connected to the inside of the feeding box 1.
[0031] In this embodiment, the synchronization column 13 enables the screening box 3 to slide along with the sliding of the connecting column 5, and at the same time supports the outer side of the screening box 3 to ensure the reciprocating motion of the screening box 3 and screen out small pieces of plastic.
[0032] Specifically, refer to Figure 4 and Figure 5 The bottom of the screening box 3 is provided with a screening hole 14, the bottom of the feeding box 1 is fixedly connected with a sliding hopper 15, and the bottom of the sliding hopper 15 is provided with a plastic extruder body 16.
[0033] In this embodiment, the plastic raw material in the screening box 3 is screened through the screening holes 14 and falls into the sliding hopper 15 , and then falls into the plastic extruder body 16 for plastic extrusion molding.
[0034] Specifically, refer to Figure 2 and Figure 3 The number of cutting blades 11 is three and they are distributed in a linear array, and a feed hopper 17 is fixedly connected to the top of the loading box 1 .
[0035] In this embodiment, the plastic raw material is fed into the screening box 3 through the feed hopper 17 for screening processing. The cutting blade 11 can cut and break the large pieces of plastic that have not been screened into small pieces of plastic, and finally fall into the interior of the sliding hopper 15 after screening.
[0036] Specifically, refer to Figure 1 and Figure 4 The outside of the feeding box 1 is fixedly connected with a control panel 18, the inside of the feeding box 1 is hinged with an opening and closing cover 19, the inside of the screening box 3 is hinged with an opening and closing door 21, and the outside of the opening and closing door 21 is rotatably connected with a block that engages with the inside of the screening box 3.
[0037] In this embodiment, the control panel 18 controls the screening and crushing of the plastic raw materials. By punching the opening and closing cover 19 and the opening and closing door 21, the interior of the screening box 3 is cleaned regularly to prevent the plastic raw materials from clogging the screening holes 14 of the screening box 3.
[0038] Working principle:
[0039] First: put the plastic raw material into the feeding box 1, start the first motor 7, so that the rotating column 8 drives the cam 9 to rotate, and then the cam 9 drives the connecting plate 6 to move closer to the end of the feeding box 1, and then the connecting plate 6 drives the connecting column 5 to slide inside the upper feeding box 1, and then the connecting column 5 drives the screening box 3 to slide to the right inside the feeding box 1, and then the sliding column 2 slides to the outside of the upper feeding box 1, the elastic potential energy of the spring 4 increases, causing the spring 4 to be compressed, and then the convex part of the cam 9 moves away from the connecting plate 6, causing the spring 4 to recover, and the elastic potential energy of the spring 4 is converted into a thrust for the sliding column 2 to drive the screening box 3 to slide to the left;
[0040] Then: the process repeats itself, causing the screening box 3 to reciprocate, thereby screening the small pieces of plastic inside the screening box 3 to the bottom of the feeding box 1, and the larger pieces of plastic remain inside the screening box 3. At this moment, the second motor 12 is started, so that the second motor 12 drives the fixed column 10 to rotate, thereby rotating the cutting blade 11 to cut and crush the plastic raw materials, thereby facilitating the plastic particles to be screened out of the screening box 3 and fall into the interior of the plastic extruder body 16 through the sliding hopper 15, and the plastic is reheated and melted into shape.
[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0042] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A feeding device for an extruder for plastic processing, comprising a feeding box (1), characterized in that: The interior of the feeding box (1) is slidably connected to three sliding columns (2) distributed in a linear array, the left sides of the three sliding columns (2) are fixedly connected to a screening box (3), the outer sides of the three sliding columns (2) are fixedly connected to a spring (4), the left side of the screening box (3) is fixedly connected to a connecting column (5) slidably connected to the interior of the feeding box (1), the left side of the connecting column (5) is fixedly connected to a connecting plate (6), the left side of the feeding box (1) is fixedly connected to a first motor (7), the output shaft of the first motor (7) is fixedly connected to a rotating column (8), the outer side of the rotating column (8) is fixedly connected to a cam (9), the interior of the feeding box (1) is rotatably connected to a fixed column (10), and the outer side of the fixed column (10) is fixedly connected to a cutting blade (11).
2. A feeding device for a plastic processing extruder according to claim 1, characterized in that: A second motor (12) is fixedly connected to the top of the loading box (1), an output shaft of the second motor (12) is fixedly connected to the fixed column (10), and a fixed frame (20) rotatably connected to the rotating column (8) is fixedly connected to the left side of the loading box (1).
3. The feeding device of a plastic processing extruder according to claim 1, characterized in that: A synchronization column (13) is fixedly connected to the left side of the screening box (3), and the number of the synchronization columns (13) is two and they are symmetrically distributed. Both of the two synchronization columns (13) are slidably connected to the inside of the feeding box (1).
4. The feeding device of a plastic processing extruder according to claim 1, characterized in that: The bottom of the screening box (3) is provided with screening holes (14), the bottom of the feeding box (1) is fixedly connected with a sliding hopper (15), and the bottom of the sliding hopper (15) is provided with a plastic extruder body (16).
5. The feeding device of a plastic processing extruder according to claim 1, characterized in that: The number of the cutting blades (11) is three and they are distributed in a linear array. The top of the loading box (1) is fixedly connected to a feeding hopper (17).
6. The feeding device of a plastic processing extruder according to claim 1, characterized in that: The outside of the feeding box (1) is fixedly connected to a control panel (18), the inside of the feeding box (1) is hingedly connected to an opening and closing cover (19), the inside of the screening box (3) is hingedly connected to an opening and closing door (21), and the outside of the opening and closing door (21) is rotatably connected to a block that engages with the inside of the screening box (3).