Melt tackifying extrusion device for producing regenerated polyester staple fibers

Abstract

The utility model provides a melt tackifying and extruding device for producing regenerated polyester staple fibers, which comprises a base station, a tackifying kettle is mounted at the top of the base station, a control component for controlling the extrusion process is mounted outside the tackifying kettle, a filter is mounted at the top of the base station, and the filter is connected with the base station. The other end of the control assembly is installed in the filter, the inner wall of the filter is slidably connected with a filter plate, the exterior of the filter plate is fixedly connected with a push plate, the exterior of the push plate is fixedly connected with a positioning column, the inner wall of the filter is in threaded connection with a threaded rod, and the exterior of the threaded rod is fixedly connected with a rotating plate. According to the filter, the threaded rod rotates to drive the rotating plate to be separated from the positioning column by reversely screwing the rotating disc, so that the push plate can be pulled to drive the filter plate to be far away from the filter, the filter plate is cleaned and replaced, the filter structure is convenient to replace, and the downtime of equipment can be remarkably shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical fiber manufacturing industry, and in particular to a melt thickening extrusion device for producing recycled polyester staple fiber. Background Technology

[0002] Recycled polyester staple fiber, made from recycled polyester products, is inexpensive and has excellent performance. As a filling material, it is a preferred choice for furniture and toy filling due to its good fluffiness and elasticity. In the textile industry, it can be blended and woven into various comfortable and durable bedding, clothing and woven fabrics. In industry, it is a raw material for manufacturing products such as conveyor belts, tents and ropes. It can even be used as polyester cord in tire manufacturing.

[0003] The melt thickening extrusion unit for producing recycled polyester staple fiber mainly consists of a shredder, a feeder, a screw extruder, a homogenizing and thickening device, and a spinning device. The shredder crushes the waste polyester fabric to ensure the physical properties of the raw material. The feeder conveys the material to the feed end of the screw extruder. The screw extruder melts and extrudes the material and initially filters impurities. The homogenizing and thickening device further purifies and removes impurities and increases the intrinsic viscosity of the raw material. The spinning device spins the melt stream into fibers.

[0004] In existing technologies, material thickening followed by filtration can improve product quality, but it also increases the difficulty of filtration. Adhered impurities and thickeners can easily clog the filter structure, leading to frequent cleaning and replacement. This not only increases maintenance costs and downtime, but also affects the filtration effect due to incomplete cleaning, thus affecting the stability of product quality. Therefore, a melt thickening extrusion device for producing recycled polyester staple fiber is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a melt-adhesive extrusion device for producing recycled polyester staple fiber. By rotating the threaded rod, the rotating plate is disengaged from the positioning column, thereby allowing the push plate to move the filter plate away from the filter, facilitating filter structure replacement and solving the problem of frequent cleaning and replacement caused by easily clogging of the filter structure by adhering impurities and adhesives.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A melt thickening extrusion apparatus for producing recycled polyester staple fiber includes a base, a thickening vessel mounted on the top of the base, a control component for controlling the extrusion process mounted on the outside of the thickening vessel, a filter mounted on the top of the base, the other end of the control component mounted inside the filter, a filter plate slidably connected to the inner wall of the filter, a push plate fixedly connected to the outside of the filter plate, a positioning column fixedly connected to the outside of the push plate, a threaded rod threadedly connected to the inner wall of the filter, a rotating plate fixedly connected to the outside of the threaded rod, and the inside of the rotating plate contacting the outside of the positioning column.

[0008] As a further description of the above technical solution:

[0009] The control component includes a connecting pipe, the outside of which is fixedly connected to the inside of the thickening reactor, a spring three is fixedly connected to the inner wall of the connecting pipe, and a movable ball is movably connected to the inner wall of the connecting pipe.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the connecting pipe is slidably connected to an intermediate pipe, and a retaining ring is fixedly connected to the outside of the intermediate pipe.

[0012] As a further description of the above technical solution:

[0013] The connecting pipe is slidably connected to the outside of a rotating pipe, and the inner wall of the rotating pipe is threadedly connected to a threaded pipe.

[0014] As a further description of the above technical solution:

[0015] A second spring is fixedly connected to the inner wall of the threaded tube, and a movable ball is fixedly connected to the other end of the second spring. The outside of the intermediate tube is in contact with the outside of the movable ball, and the other end of the threaded tube is fixedly connected to the inner wall of the filter.

[0016] As a further description of the above technical solution:

[0017] The filter has two sliding boxes slidably connected to its inner wall. Each sliding box has multiple springs fixedly connected to its inner wall. The other end of each spring is fixedly connected to the inner wall of the filter. The outside of the push plate is in contact with the outside of the two sliding boxes. A rotating disk is fixedly connected to the outside of the threaded rod.

[0018] As a further description of the above technical solution:

[0019] A spinning structure is installed on the top of the base, and a slicing and packaging structure is installed on the top of the base.

[0020] As a further description of the above technical solution:

[0021] The viscosity-enhancing kettle is equipped with a viscosity-enhancing stirrer on the outside, and the filter is equipped with a viscosity-enhancing discharge pump on the outside.

[0022] The beneficial effects of this utility model are as follows:

[0023] (1) In this utility model, the screw rod rotates by reversing the rotating disc, causing the rotating plate to disengage from the positioning column, thereby enabling the push plate to move the filter plate away from the filter, thus realizing the cleaning and replacement of the filter plate. The filter structure is easy to replace, which can significantly reduce equipment downtime, maintain the continuity and stability of production, and improve production efficiency.

[0024] (2) In this utility model, the connecting pipe drives the intermediate pipe away from the threaded pipe, thereby causing the movable ball to lose the extrusion force of the intermediate pipe. The reset of the spring two causes the movable ball to reset, which enables precise control of the extrusion time. When extrusion is not required, the movable ball blocks the extrusion port, which helps to maintain the stability of the melt viscosity and avoids the melt cooling or excessive viscosity due to long waiting time for filtration.

[0025] In summary, this utility model has advantages such as convenient replacement of the filter structure and control of the extrusion time during the thickening extrusion process, allowing subsequent filtration to be carried out within a suitable time. Attached Figure Description

[0026] Figure 1 This is a perspective view of a melt thickening extrusion device for producing recycled polyester staple fiber according to the present invention.

[0027] Figure 2 This is a schematic diagram of the filter assembly of a melt thickening extrusion device for producing recycled polyester staple fiber, as proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Base; 2. Viscosity-enhancing kettle; 3. Viscosity-enhancing agitator; 4. Viscosity-enhancing discharge pump; 5. Slicing and packaging structure; 6. Spinning structure; 7. Filter; 8. Filter plate; 9. Positioning column; 10. Threaded rod; 11. Rotating disk; 12. Push plate; 13. Sliding box; 14. Spring 1; 15. Rotating plate; 16. Threaded tube; 17. Rotating tube; 18. Connecting tube; 19. Intermediate tube; 20. Movable ball; 21. Spring 2; 22. Moving ball; 23. Spring 3; 24. Retaining ring. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Example

[0035] Reference Figure 1 and Figure 4 This embodiment provides a melt viscosity-enhancing extrusion device for producing recycled polyester staple fiber, including a base 1. A viscosity-enhancing vessel 2 is installed on the top of the base 1. The viscosity-enhancing vessel 2 is used to increase the viscosity of the recycled polyester staple fiber melt by stirring, mixing, heating, and other methods to thicken the material and improve product performance. A spinning structure 6 is installed on the top of the base 1. The spinning structure 6 for recycled polyester staple fiber is used to convert the melt into continuous filaments, which are then wound and bundled to form short fibers. Its functions include improving fiber quality, increasing production efficiency, and reducing energy consumption. A slicing and packaging structure 5 is installed on the top of the base 1. The slicing and packaging structure 5 for recycled polyester staple fiber facilitates storage, transportation, and subsequent processing, while protecting fiber quality and facilitating management. A viscosity-enhancing stirrer 3 is installed outside the viscosity-enhancing vessel 2. The viscosity-enhancing stirrer 3 for recycled polyester staple fiber is used to enhance melt mixing, ensure uniform viscosity, improve product quality, and promote production efficiency. The filter 7 is externally equipped with a viscosity-enhancing discharge pump 4. The viscosity-enhancing discharge pump 4 for recycled polyester staple fiber is used to transport the melt, ensuring its continuous and stable entry into the next process, while precisely controlling the flow rate and pressure to guarantee product quality and production efficiency.

[0036] The viscosifying vessel 2 is externally equipped with a control assembly for controlling the extrusion process. The control assembly includes a connecting pipe 18, which is externally and fixedly connected to the inside of the viscosifying vessel 2 for conveying the material inside. A spring 23 (as shown in the attached image) is fixedly connected to the inner wall of the connecting pipe 18. Figure 4 The connecting pipe 18 serves to fix the position of the spring 23. A movable ball 22 is movably connected to the inner wall of the connecting pipe 18; the positional change of the movable ball 22 causes the spring 23 to deform. An intermediate pipe 19 is slidably connected to the inner wall of the connecting pipe 18; the positional change of the connecting pipe 18 causes the intermediate pipe 19 to change position. A retaining ring 24 is fixedly connected to the outside of the intermediate pipe 19, restricting its movement. A rotating pipe 17 is slidably connected to the outside of the connecting pipe 18; the rotation of the rotating pipe 17 is not restricted by the connecting pipe 18.

[0037] The inner wall of the rotating tube 17 is threadedly connected to a threaded tube 16, allowing the rotating tube 17 to disengage from the outside of the threaded tube 16 when rotated. A second spring 21 is fixedly connected to the inner wall of the threaded tube 16, fixing one end of the second spring 21 in a fixed position. A movable ball 20 is fixedly connected to the other end of the second spring 21. Changes in the position of the movable ball 20 cause deformation of the second spring 21, and the resetting of the second spring 21 causes the movable ball 20 to reset. The outer surface of the intermediate tube 19 is in contact with the outer surface of the movable ball 20 (as shown in the attached diagram). Figure 4 When the intermediate tube 19 pushes the movable ball 20, it creates a flow channel between the intermediate tube 19 and the movable ball 20. The other end of the threaded tube 16 is fixedly connected to the inner wall of the filter 7, so that the threaded tube 16 can convey the material into the interior of the filter 7.

[0038] Reference Figure 2 and Figure 3 The filter 7 has two sliding boxes 13 slidably connected to its inner wall. Multiple springs 14 are fixedly connected to the inner walls of each sliding box 13. Changes in the position of the sliding boxes 13 cause deformation of the springs 14, and the resetting of the springs 14 causes the sliding boxes 13 to reset. The other ends of the springs 14 are fixedly connected to the inner wall of the filter 7, and the filter 7 has a fixed position for one end of the springs 14. The outer side of the push plate 12 is in contact with the outer side of the two sliding boxes 13, and changes in the position of the push plate 12 cause changes in the position of the sliding boxes 13. A rotating disk 11 is fixedly connected to the outer side of the threaded rod 10; turning the rotating disk 11 causes the threaded rod 10 to change position.

[0039] A filter 7 is installed on top of the base 1. The main function of the filter 7 in the post-viscosity filtration of recycled polyester staple fiber is to remove impurities and unreacted small molecules from the melt, improving the purity and viscosity stability of the melt, thereby ensuring the smooth progress of subsequent spinning processes and the quality of the final fiber product. The other end of the control assembly is installed inside the filter 7, and a filter plate 8 (as shown in the attached image) is slidably connected to the inner wall of the filter 7. Figure 2 A push plate 12 is fixedly connected to the outside of the filter plate 8. The positional change of the push plate 12 can cause the filter plate 8 to move in position. A positioning post 9 is fixedly connected to the outside of the push plate 12. The positional change of the positioning post 9 can cause the push plate 12 to move in position. A threaded rod 10 is threadedly connected to the inner wall of the filter 7. A rotating plate 15 is fixedly connected to the outside of the threaded rod 10. The rotation and movement of the threaded rod 10 can cause the rotating plate 15 to move in position. The inside of the rotating plate 15 is in contact with the outside of the positioning post 9. When the rotating plate 15 rotates to a certain position, it can lock the positioning post 9 in place.

[0040] Work steps

[0041] Step 1: Put the material in production into the thickening reactor 2, then start the thickening agitator 3, then start the thickening discharge pump 4 to filter the thickened material, and finally put it into the slicing and packaging structure 5 and the spinning structure 6 for processing.

[0042] Twisting the rotating disk 11 causes the threaded rod 10 to change position. The rotation of the threaded rod 10 and its proximity to the filter 7 cause the rotating plate 15 to rotate and move closer to the filter 7. The proximity of the rotating plate 15 pushes the push plate 12 to change position. The push plate 12 can drive the filter plate 8 to slide inside the filter 7. The position change of the push plate 12 can also cause the two sliding boxes 13 to slide inside the filter 7. The position change of the sliding boxes 13 causes multiple springs 14 to deform. The reset of the multiple springs 14 can make the sliding boxes 13 and the outside of the push plate 12 in close contact. Twisting the rotating disk 11 in the opposite direction causes the threaded rod 10 to rotate and drive the rotating plate 15 to disengage from the positioning post 9. This allows the push plate 12 to be pulled away from the filter 7, thus cleaning and replacing the filter plate 8. The filter structure is easy to replace, which can significantly reduce equipment downtime, maintain the continuity and stability of production, improve production efficiency, and facilitate the timely restoration of filtration performance, ensuring the consistency of product quality. It can also reduce the production risks and maintenance costs caused by poor filtration.

[0043] Step 2: Twist the rotating tube 17. The rotating tube 17 moves the connecting tube 18 away from the threaded tube 16. The connecting tube 18 moves the intermediate tube 19 away from the threaded tube 16, thereby causing the movable ball 20 to lose the extrusion force of the intermediate tube 19. The reset of the spring 21 causes the movable ball 20 to reset, enabling precise control of the extrusion time. When extrusion is not needed, the movable ball 20 blocks the extrusion port, which helps maintain the stability of the melt viscosity and avoids melt cooling or excessive viscosity due to long waiting time for filtration. This ensures the consistency of filtration effect and the stability of product quality. Reasonable extrusion time arrangement can optimize the production process, reduce equipment downtime and energy consumption. Timely filtration can also prevent impurities from accumulating in the melt for a long time, reducing wear and clogging of the filter structure.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A melt thickening extrusion apparatus for producing recycled polyester staple fiber, comprising a base (1), characterized in that: A thickening vessel (2) is installed on the top of the base (1). A control component for controlling the extrusion process is installed on the outside of the thickening vessel (2). A filter (7) is installed on the top of the base (1). The other end of the control component is installed inside the filter (7). A filter plate (8) is slidably connected to the inner wall of the filter (7). A push plate (12) is fixedly connected to the outside of the filter plate (8). A positioning column (9) is fixedly connected to the outside of the push plate (12). A threaded rod (10) is threadedly connected to the inner wall of the filter (7). A rotating plate (15) is fixedly connected to the outside of the threaded rod (10). The inside of the rotating plate (15) is in contact with the outside of the positioning column (9).

2. The melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 1, characterized in that: The control component includes a connecting pipe (18), the outside of which is fixedly connected to the inside of the thickening kettle (2), a spring three (23) is fixedly connected to the inner wall of the connecting pipe (18), and a movable ball (22) is movably connected to the inner wall of the connecting pipe (18).

3. The melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 2, characterized in that: The inner wall of the connecting pipe (18) is slidably connected to an intermediate pipe (19), and a retaining ring (24) is fixedly connected to the outside of the intermediate pipe (19).

4. The melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 3, characterized in that: The connecting pipe (18) is slidably connected to the outside of the rotating pipe (17), and the inner wall of the rotating pipe (17) is threadedly connected to the threaded pipe (16).

5. A melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 4, characterized in that: A second spring (21) is fixedly connected to the inner wall of the threaded tube (16), and a movable ball (20) is fixedly connected to the other end of the second spring (21). The outside of the intermediate tube (19) is in contact with the outside of the movable ball (20), and the other end of the threaded tube (16) is fixedly connected to the inner wall of the filter (7).

6. The melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 1, characterized in that: The filter (7) has two sliding boxes (13) slidably connected to its inner wall. The inner walls of the two sliding boxes (13) are fixedly connected to multiple springs (14). The other ends of the multiple springs (14) are fixedly connected to the inner wall of the filter (7). The outside of the push plate (12) is in contact with the outside of the two sliding boxes (13). The outside of the threaded rod (10) is fixedly connected to a rotating disk (11).

7. The melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 1, characterized in that: A spinning structure (6) is installed on the top of the base (1), and a slicing and packaging structure (5) is installed on the top of the base (1).

8. The melt thickening extrusion apparatus for producing recycled polyester staple fiber according to claim 1, characterized in that: The thickening reactor (2) is equipped with a thickening agitator (3) on its exterior, and the filter (7) is equipped with a thickening discharge pump (4) on its exterior.

Images