Regenerated polyester fiber granulator

By designing an automated cleaning and rapid cooling recycled polyester fiber granulator, the problems of adhesion to the inner wall of the equipment and manual collection were solved, thereby improving melt quality and production efficiency.

CN224158667UActive Publication Date: 2026-04-24ANHUI ZAISEN NEW HIGH PERFORMANCE FIBER CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZAISEN NEW HIGH PERFORMANCE FIBER CO LTD
Filing Date
2025-04-02
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing polyester fiber granulation equipment, the molten fibers tend to adhere to the inner wall of the equipment, affecting the subsequent melting quality. Furthermore, the equipment requires manual collection of high-temperature fiber particles, resulting in a slow molding speed.

Method used

A recycled polyester fiber pelletizer was designed, comprising a melting component, an extrusion component, and a pelletizing component. It utilizes an annular heating plate and stirring blades for automatic cleaning, and combines a collection component and a cooler to achieve automatic collection and rapid cooling molding.

Benefits of technology

It achieves automatic cleaning of the inner wall, avoiding a decline in melt quality, and improves production efficiency and safety through automatic collection and rapid cooling molding.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224158667U_ABST
    Figure CN224158667U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of fiber pelletizers, in particular to a regenerated polyester fiber pelletizer. According to the technical scheme, the device comprises a workbench, a melting assembly, an extrusion assembly and a pelletizing assembly are fixedly installed at the top of the workbench, the melting assembly communicates with the extrusion assembly, the extrusion assembly is used for extruding regenerated polyester fibers melted by the melting assembly, and the pelletizing assembly is matched with the extrusion assembly; and the pelletizing assembly is used for cutting the regenerated polyester fibers extruded by the extrusion assembly into particles, and a collecting assembly matched with the pelletizing assembly is fixedly installed on the inner wall of the top of the workbench and used for collecting the fiber particles cut by the pelletizing assembly. According to the utility model, not only can the inner walls of the melting tank and the annular heating plate be automatically cleaned to prevent residues from influencing the subsequent melting quality, but also fiber particles can be automatically collected and stored and can be quickly cooled and formed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of fiber granulation machine technology, and in particular to a recycled polyester fiber granulation machine. Background Technology

[0002] Recycled polyester fiber is an environmentally friendly material made by recycling waste polyester materials (such as waste plastic bottles, waste textiles, etc.). Before being made into the final product, polyester fiber often needs to be mixed and then granulated into polyester fiber masterbatch before proceeding to the next step.

[0003] In the prior art, patent publication number CN212241696U discloses a granulation equipment for processing polyester fiber masterbatch, including a housing, a hot air circulation mechanism, a stirring mechanism, a first transmission mechanism, a screw extrusion mechanism, a second transmission mechanism, a pelletizing mechanism, and a frame. A hopper is provided on the rear side of the housing and is connected to the housing. The hot air circulation mechanism is installed on the left and right sides of the housing. The stirring mechanism is installed inside the housing. The first transmission mechanism is installed on the upper exterior of the housing and drives the stirring mechanism. A discharge port is provided at the bottom of the housing, installed above the screw extrusion mechanism and connected to the barrel of the screw extrusion mechanism. A screw is horizontally arranged inside the barrel. The granulation equipment for processing polyester fiber masterbatch according to this utility model has a compact structure, is simple and reliable, and has good stability. It realizes a series of functions including melting, stirring, extrusion, and pelletizing, improving granulation quality and efficiency, and has broad application prospects.

[0004] Although the granulation equipment for processing polyester fiber masterbatch mentioned above can achieve the purpose of melting polyester fibers through the setting of a box and a hot air circulator, it still has the following shortcomings in practical applications: After the polyester fibers are melted and discharged in the box, some polyester fibers still remain on the inner wall of the box, which affects the quality of subsequent polyester fiber melting. In addition, the equipment requires manual collection of fiber particles, and since they are freshly melted, they still have a certain high temperature, resulting in a slow forming speed. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a recycled polyester fiber granulator.

[0006] To achieve this objective, the present invention adopts the following technical solution: a recycled polyester fiber granulator, comprising a worktable, a melting component, an extrusion component, and a pelletizing component fixedly installed on the top of the worktable, the melting component being connected to the extrusion component, the extrusion component being used to extrude the recycled polyester fiber melted by the melting component, the pelletizing component cooperating with the extrusion component, the pelletizing component being used to cut the recycled polyester fiber extruded by the extrusion component into granules, and a collecting component cooperating with the pelletizing component being fixedly installed on the inner wall of the top of the worktable, for collecting the fiber granules cut by the pelletizing component.

[0007] Preferably, the melting assembly includes a mounting frame fixedly installed on the top of the workbench, a melting tank fixedly installed inside the mounting frame, an annular heating plate fixedly sleeved in the annular groove on the inner wall of the melting tank, and the inner wall of the annular heating plate being flush with the inner wall of the melting tank, and a heater fixedly installed on the outer wall of the melting tank, and the heater being electrically connected to the annular heating plate.

[0008] Preferably, a rotating shaft is rotatably installed on the top inner wall of the melting tank, and a drive motor is fixedly installed on the top of the melting tank. The output end of the drive motor passes through the top wall of the melting tank and is fixedly connected to the top of the rotating shaft. Multiple stirring blades are evenly fixedly installed around the rotating shaft. A cleaning plate is fixedly installed on the side of the stirring blades away from the rotating shaft, and the cleaning plate abuts against the inner wall of the melting tank and the annular heating plate.

[0009] Preferably, the top and bottom walls of the melting tank are respectively fixedly connected to a feed inlet and a discharge outlet, and a material valve is fixedly installed around the discharge outlet.

[0010] Preferably, the extrusion assembly includes an extruder fixedly installed on the top of the workbench, the top of the extruder being connected to the bottom of the discharge port, a screw shaft being rotatably installed on the left inner wall of the extruder, a second drive motor being fixedly installed on the left side of the extruder, the output end of the second drive motor passing through the side wall of the extruder and being fixedly connected to the left end of the screw shaft, and an extrusion hole being provided on the right side wall of the extruder.

[0011] Preferably, the pelletizing assembly includes a pelletizing frame fixedly installed on the top of the workbench, with a cutter slidably installed on the front and rear inner walls of the pelletizing frame, and the cutter abutting against the right side wall of the extruder. A cylinder is fixedly installed on the top of the pelletizing frame, and the telescopic shaft of the cylinder passes through the top wall of the pelletizing frame and is fixedly connected to the top of the cutter.

[0012] Preferably, the collection assembly includes a collection box fixedly installed on the inner wall of the top of the workbench, with a collection port fixedly inserted into the top wall of the collection box and the top wall of the workbench, and the collection port is located directly below the cutter. A collection drawer is slidably installed on the front of the collection box, and a cooler is fixedly installed on the side wall of the collection box, with the cooling end of the cooler located inside the collection box.

[0013] The beneficial effects of this invention are as follows: When using this device, recycled polyester fiber material is first poured into the melting tank through the feed port. The heater is then activated to heat the annular heating plate, which melts the recycled polyester fiber material in the melting tank. The drive motor is then activated to rotate the shaft, which in turn rotates multiple stirring blades, thereby stirring the recycled polyester fiber material in the melting tank. Simultaneously, the stirring blades drive the cleaning plate to rotate, continuously scraping the inner walls of the melting tank and the annular heating plate to prevent the molten recycled polyester fiber material from sticking to their inner walls. Through these features, the device can automatically clean the inner walls of the melting tank and the annular heating plate, preventing residues from affecting the subsequent melting quality. The cut fiber particles fall into the collection box through the collection port and are then collected by the collection drawer. The cooler is activated to spray cold air into the collection box, thereby rapidly cooling and shaping the fiber particles. Through these features, the device can automatically collect and store the fiber particles and rapidly cool and shape them. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of an embodiment of the recycled polyester fiber granulator of this utility model;

[0015] Figure 2 This is a front sectional view of the overall structure of an embodiment of the recycled polyester fiber granulator of this utility model;

[0016] Figure 3 This is a top cross-sectional view of the overall structure of an embodiment of a recycled polyester fiber granulator according to this utility model.

[0017] Reference numerals: 1. Workbench; 2. Melting assembly; 21. Mounting frame; 22. Melting tank; 23. Annular heating plate; 24. Heater; 25. Drive motor one; 26. Rotating shaft; 27. Stirring blade; 28. Cleaning plate; 29. ​​Feed inlet; 210. Discharge outlet; 211. Material valve; 3. Extrusion assembly; 31. Extruder; 32. Screw shaft; 33. Drive motor two; 34. Extrusion hole; 4. Pelletizing assembly; 41. Pelletizing rack; 42. Cutter; 43. Cylinder; 5. Collection assembly; 51. Collection box; 52. Collection port; 53. Collection drawer; 54. Refrigerator. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0022] Example 1

[0023] like Figure 1-3 As shown, the present invention proposes a recycled polyester fiber granulator, including a workbench 1. A melting component 2, an extrusion component 3, and a pelletizing component 4 are fixedly installed on the top of the workbench 1. The melting component 2 is connected to the extrusion component 3. The extrusion component 3 is used to extrude the recycled polyester fiber melted by the melting component 2. The pelletizing component 4 cooperates with the extrusion component 3 and is used to cut the recycled polyester fiber extruded by the extrusion component 3 into granules. A collecting component 5, which cooperates with the pelletizing component 4, is fixedly installed on the inner wall of the top of the workbench 1 for collecting the fiber granules cut by the pelletizing component 4.

[0024] In this embodiment: the melting assembly 2 includes a mounting frame 21 fixedly installed on the top of the workbench 1. A melting tank 22 is fixedly installed inside the mounting frame 21. An annular heating plate 23 is fixedly sleeved in the annular groove on the inner wall of the melting tank 22, and the inner wall of the annular heating plate 23 is flush with the inner wall of the melting tank 22. A heater 24 is fixedly installed on the outer wall of the melting tank 22, and the heater 24 is electrically connected to the annular heating plate 23. Through this arrangement, the melting tank 22 can contain recycled polyester fiber material. Activating the heater 24 can heat the annular heating plate 23, and the annular heating plate 23 heats and melts the recycled polyester fiber material in the melting tank 22. A rotating shaft 26 is rotatably installed on the top inner wall of the melting tank 22. A drive motor 25 is fixedly installed on the top of the melting tank 22. The output end of the drive motor 25 passes through the top wall of the melting tank 22 and is fixedly connected to the top end of the rotating shaft 26. Multiple stirring blades 27 are evenly fixedly installed around the rotating shaft 26. Cleaning plates 28 are fixedly installed on the side of the 27 furthest from the rotating shaft 26, and the cleaning plates 28 are in contact with the inner walls of the melting tank 22 and the annular heating plate 23. With this setting, starting the drive motor 25 can drive the rotating shaft 26 to rotate, and the rotating shaft 26 drives multiple stirring blades 27 to rotate, thereby achieving the purpose of stirring the recycled polyester fiber material in the melting tank 22. At the same time, the stirring blades 27 drive the cleaning plates 28 to rotate, and the cleaning plates 28 continuously scrape the inner walls of the melting tank 22 and the annular heating plate 23 to prevent the molten recycled polyester fiber material from sticking to their inner walls. The top wall and bottom wall of the melting tank 22 are respectively fixedly inserted with a feed port 29 and a discharge port 210. A material valve 211 is fixedly installed around the discharge port 210. With this setting, the recycled polyester fiber material can be poured into the melting tank 22 through the feed port 29, and the molten recycled polyester fiber material in the melting tank 22 can be discharged through the discharge port 210 by opening the material valve 211.

[0025] Example 2

[0026] like Figure 1-3As shown, the recycled polyester fiber granulator proposed in this utility model, compared with Embodiment 1, further includes an extrusion assembly 3 comprising an extruder 31 fixedly installed on the top of the workbench 1, the top of the extruder 31 being connected to the bottom of the discharge port 210, a screw shaft 32 rotatably mounted on the left inner wall of the extruder 31, a drive motor 33 fixedly installed on the left side of the extruder 31, the output end of the drive motor 33 penetrating through the side wall of the extruder 31 and fixedly connected to the left end of the screw shaft 32, and an extrusion hole 34 opened on the right side wall of the extruder 31. This arrangement allows the molten recycled polyester fiber material to enter the extruder 31 through the discharge port 210. Starting the drive motor 33 drives the screw shaft 32 to rotate, thereby continuously extruding the molten recycled polyester fiber material towards the extrusion hole 34, and finally extruding it through the extrusion hole 34. The pelletizing assembly 4 comprises a pelletizing frame 41 fixedly installed on the top of the workbench 1, with a cutter 42 slidably mounted on the front and rear inner walls of the pelletizing frame 41. 2. The pelletizing frame 41 is fixedly mounted on the top of the extruder 31 and abuts against the right side wall of the extruder 31. A cylinder 43 is fixedly installed on the top of the pelletizing frame 41. The telescopic shaft of the cylinder 43 passes through the top wall of the pelletizing frame 41 and is fixedly connected to the top of the cutter 42. Through this setting, the cylinder 43 drives the cutter 42 to continuously move up and down against the right side of the extruder 31, thereby continuously cutting the recycled polyester fiber material extruded from the extrusion hole 34 into pellets. The collection assembly 5 includes a collection box 51 fixedly installed on the inner wall of the top of the workbench 1. The top wall of the collection box 51 and the... The top wall of the workbench 1 is fixedly connected to a collection port 52, which is located directly below the cutter 42. A collection drawer 53 is slidably installed on the front of the collection box 51. A cooler 54 is fixedly installed on the side wall of the collection box 51, and the cooling end of the cooler 54 is located inside the collection box 51. With this setting, the cut fiber particles fall into the collection box 51 through the collection port 52 and are collected by the collection drawer 53. The cooler 54 is activated to spray cold air into the collection box 51, thereby rapidly cooling and shaping the fiber particles.

[0027] Working Principle: When using this device, the recycled polyester fiber material is first poured into the melting tank 22 through the feed port 29. The heater 24 is started to heat the annular heating plate 23, which melts the recycled polyester fiber material in the melting tank 22. The drive motor 25 is started to drive the rotating shaft 26 to rotate, which in turn drives multiple stirring blades 27 to rotate, thereby stirring the recycled polyester fiber material in the melting tank 22. At the same time, the stirring blades 27 drive the cleaning plate 28 to rotate, and the cleaning plate 28 continuously scrapes the inner wall of the melting tank 22 and the annular heating plate 23 to prevent the molten recycled polyester fiber material from sticking to the inner wall. The material valve 211 is then opened to allow the recycled polyester fiber material to flow into the melting tank 22. The molten recycled polyester fiber material in the melting tank 22 is discharged into the extruder 31 through the discharge port 210. The drive motor 33 is started to drive the screw shaft 32 to rotate, thereby continuously extruding the molten recycled polyester fiber material towards the extrusion hole 34. Finally, it is extruded through the extrusion hole 34. The cylinder 43 is started to drive the cutter 42 to continuously move up and down against the right side of the extruder 31, thereby continuously cutting the recycled polyester fiber material extruded from the extrusion hole 34 into granules. The cut fiber granules fall into the collection box 51 through the collection port 52 and are then collected by the collection tray 53. The cooler 54 is started to spray cold air into the collection box 51, thereby rapidly cooling and shaping the fiber granules.

[0028] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A recycled polyester fiber granulator, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly equipped with a melting component (2), an extrusion component (3) and a pelletizing component (4). The melting component (2) is connected to the extrusion component (3). The extrusion component (3) is used to extrude the recycled polyester fibers melted by the melting component (2). The pelletizing component (4) is used to cut the recycled polyester fibers extruded by the extrusion component (3) into pellets. The inner wall of the top of the workbench (1) is fixedly equipped with a collection component (5) that is used to collect the fiber pellets cut by the pelletizing component (4).

2. The recycled polyester fiber granulator according to claim 1, characterized in that, The melting assembly (2) includes a mounting frame (21) fixedly installed on the top of the workbench (1). A melting tank (22) is fixedly installed inside the mounting frame (21). An annular heating plate (23) is fixedly sleeved in the annular groove on the inner wall of the melting tank (22). The inner wall of the annular heating plate (23) is flush with the inner wall of the melting tank (22). A heater (24) is fixedly installed on the outer wall of the melting tank (22). The heater (24) is electrically connected to the annular heating plate (23).

3. The recycled polyester fiber granulator according to claim 2, characterized in that, A rotating shaft (26) is rotatably installed on the top inner wall of the melting tank (22). A drive motor (25) is fixedly installed on the top of the melting tank (22). The output end of the drive motor (25) passes through the top wall of the melting tank (22) and is fixedly connected to the top of the rotating shaft (26). Multiple stirring blades (27) are evenly fixedly installed on the periphery of the rotating shaft (26). A cleaning plate (28) is fixedly installed on the side of the stirring blade (27) away from the rotating shaft (26). The cleaning plate (28) is in contact with the inner wall of the melting tank (22) and the annular heating plate (23).

4. A recycled polyester fiber granulator according to claim 2, characterized in that, The top and bottom walls of the melting tank (22) are respectively fixedly connected to a feed inlet (29) and a discharge outlet (210), and a material valve (211) is fixedly installed around the discharge outlet (210).

5. A recycled polyester fiber granulator according to claim 3, characterized in that, The extrusion assembly (3) includes an extruder (31) fixedly installed on the top of the workbench (1). The top of the extruder (31) is connected to the bottom of the discharge port (210). A screw shaft (32) is rotatably installed on the left inner wall of the extruder (31). A second drive motor (33) is fixedly installed on the left side of the extruder (31). The output end of the second drive motor (33) passes through the side wall of the extruder (31) and is fixedly connected to the left end of the screw shaft (32). An extrusion hole (34) is opened on the right side wall of the extruder (31).

6. A recycled polyester fiber granulator according to claim 5, characterized in that, The pelletizing assembly (4) includes a pelletizing frame (41) fixedly installed on the top of the workbench (1). A cutter (42) is slidably installed on the front and rear inner walls of the pelletizing frame (41), and the cutter (42) abuts against the right side wall of the extruder (31). A cylinder (43) is fixedly installed on the top of the pelletizing frame (41). The telescopic shaft of the cylinder (43) passes through the top wall of the pelletizing frame (41) and is fixedly connected to the top of the cutter (42).

7. A recycled polyester fiber granulator according to claim 6, characterized in that, The collection assembly (5) includes a collection box (51) fixedly installed on the inner wall of the top of the workbench (1). The top wall of the collection box (51) and the top wall of the workbench (1) are both fixedly connected to a collection port (52), and the collection port (52) is located directly below the cutter (42). A collection drawer (53) is slidably installed on the front of the collection box (51). A cooler (54) is fixedly installed on the side wall of the collection box (51), and the cooling end of the cooler (54) is located inside the collection box (51).

Citation Information

Patent Citations

  • Granulation equipment for processing polyester fiber master batches

    CN212241696U