A winding mechanism for a sheet extruder

Abstract

The utility model discloses a kind of winding mechanisms of sheet extruder, belong to winding mechanism technical field, including winding assembly, the winding assembly includes rack, the inside rotation of the rack is connected with support frame, one end of the support frame is rotatably connected with winding roller, and winding roller is used for the winding of sheet;Tensioning assembly and elastic component, the tensioning assembly is arranged in the top horizontal end of rack, and elastic component is used for the connection of tensioning assembly spare parts, the tensioning assembly is used for the tensioning pressure adjustment of sheet between guide roller to winding roller. Through the setting of tensioning assembly, by the down pressure of second cylinder, tensioning roller is driven to move up and down, so that tensioning roller is tensioned to the sheet conveyed between guide roller and winding roller, so as to ensure the tensioning force of sheet conveying process, avoid the winding quality reduction due to sheet conveying relaxation.

Description

Technical Field

[0001] This utility model relates to the field of winding mechanism technology, specifically a winding mechanism for a sheet extruder. Background Technology

[0002] A sheet extruder is an industrial equipment used to produce plastic sheets. It heats and plasticizes plastic raw materials and extrudes them into continuous sheets through a die. It has multi-layer co-extrusion technology to meet different performance requirements. The winding mechanism is mainly used at the end of the sheet extrusion process to orderly and tightly wind and collect the formed and cooled sheets for storage, transportation and subsequent processing.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220811237U) discloses a winding mechanism for a sheet extruder. The mechanism includes a base, with fixed plates fixedly connected to both the front and rear sides of the base's top. A motor is fixedly connected to the left front end of the front fixed plate. Rotating blocks are rotatably connected to adjacent sides of the two fixed plates. The front end of the rotating blocks is mounted on the drive end of the motor. Fixed rings are fixedly connected to adjacent sides of the two rotating blocks. Each fixed ring has an internal cavity. A support rod is fixedly connected to adjacent sides of each fixed ring. A take-up roller is fixedly connected to adjacent sides of the support rod. A disassembly assembly is slidably connected to the top of the fixed rings. This utility model enables the disassembly and replacement of the take-up roller, avoiding the time-consuming and laborious maintenance of the take-up roller by workers and improving the efficiency of sheet winding.

[0004] Although the aforementioned patent enables convenient disassembly of the coiling roller, when the coiling roller is used to wind up the sheet, the sheet may become loose during winding due to the influence of conveying deviation, winding speed, and winding diameter. This can lead to wrinkles or deformation of the sheet during winding, thus affecting the winding quality of the sheet.

[0005] Therefore, this utility model provides a winding mechanism for a sheet extruder to solve the above problems. Utility Model Content

[0006] This invention provides a winding mechanism for a sheet extruder, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a winding mechanism for a sheet extruder, comprising a winding assembly, the winding assembly comprising a frame, a support frame rotatably connected inside the frame, a winding roller rotatably connected to one end of the support frame, the winding roller being used for winding the sheet, and a guide roller rotatably connected to the upper end of the frame, the guide roller being used for guiding the winding of the sheet. The tensioning assembly and the elastic assembly are provided. The tensioning assembly is located at the top horizontal end of the frame, and the elastic assembly is used to connect the components of the tensioning assembly. The tensioning assembly is used to adjust the tension of the sheet between the guide roller and the take-up roller.

[0008] As a preferred technical solution of this application, a first cylinder is hinged to the upper surface of the horizontal end of the bottom of the frame, and the other end of the first cylinder is hinged to the outer wall of the support frame. A positioning plate for horizontal support of the support frame is provided on the outer wall of the vertical end of the frame.

[0009] As a preferred technical solution of this application, the tensioning assembly includes a top plate, which is fixedly connected between the top horizontal ends of the frame. A second cylinder is fixedly connected to the upper surface of the top plate, and an adjusting plate is fixedly connected to the lower part of the second cylinder through the lifting end of the top plate. A tensioning roller is rotatably connected to the bottom of the adjusting plate through an elastic component.

[0010] As a preferred technical solution of this application, the tensioning roller is used to press and tension the sheet between the guide roller and the take-up roller. The second cylinder and the elastic component are both provided in two sets, and the two sets of the second cylinder and the elastic component are respectively located at both ends of the adjustment plate.

[0011] As a preferred technical solution of this application, the elastic component includes a positioning cylinder, which is fixedly connected to the lower surface of the adjusting plate. A cover plate is fixedly connected to the bottom of the positioning cylinder, and a telescopic shaft slides through the axis of the positioning cylinder and the cover plate. A positioning sleeve is fixedly connected to the bottom of the telescopic shaft, and a tension roller is rotatably connected inside the positioning sleeve through a ball bearing.

[0012] As a preferred technical solution of this application, a spring is sleeved on the outside of the telescopic shaft, and a limiting ring adapted to slide inside the positioning cylinder is provided at one end of the telescopic shaft inside the positioning cylinder, and the two ends of the spring abut against the limiting ring and the cover plate respectively.

[0013] The beneficial effects of this application are as follows: This invention utilizes a tensioning assembly. By pressing down on the second cylinder, the tensioning roller moves up and down, thereby pressing the sheet material conveyed between the guide roller and the take-up roller with tension. This ensures the tension force during sheet conveying and prevents a decrease in winding quality due to loose sheet material. At the same time, the pressing height of the guide roller can be adjusted according to changes in the outer winding diameter of the take-up roller, avoiding excessive or insufficient pressing force. This allows the tensioning roller to better adapt to the sheet conveying tilt angle for tension pressing.

[0014] This invention, through the setting of elastic components, enables the tension roller itself to have a certain elastic tensioning effect, thereby avoiding the situation where the conveying loosens due to local tension changes during the sheet conveying process. This allows the tension roller to adapt to the sheet conveying tension changes within a certain range, thereby further improving the sheet winding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the winding state structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the present utility model; Figure 3 This is a schematic diagram of a partial explosion of the tensioning component of this utility model; Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the diagram.

[0016] In the picture: 1. Rewinding assembly; 11. Frame; 12. Support frame; 13. Rewinding roller; 14. First cylinder; 15. Guide roller; 2. Tensioning assembly; 21. Top plate; 22. Second cylinder; 23. Adjusting plate; 24. Tensioning roller; 3. Elastic assembly; 31. Positioning cylinder; 32. Cover plate; 33. Spring; 34. Telescopic shaft; 35. Positioning sleeve. Detailed Implementation

[0017] 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.

[0018] like Figure 1-4As shown, this utility model provides a winding mechanism for a sheet extruder, including a winding assembly 1. The winding assembly 1 includes a frame 11, a support frame 12 rotatably connected inside the frame 11, a winding roller 13 rotatably connected to one end of the support frame 12, and the winding roller 13 is used for winding the sheet. A guide roller 15 is rotatably connected to the upper end of the frame 11, and the guide roller 15 is used for guiding the winding of the sheet. A tensioning assembly 2 and an elastic assembly 3 are also included. The tensioning assembly 2 is located at the top horizontal end of the frame 11, and the elastic assembly 3 is used for connecting the components of the tensioning assembly 2. The tensioning assembly 2 is used for adjusting the tension of the sheet between the guide roller 15 and the winding roller 13. Through the cooperation of the tensioning assembly 2 and the elastic assembly 3, the sheet in the area from the guide roller 15 to the winding roller 13 can be pressed down and tensioned, thereby ensuring the uniformity of the sheet winding tension, avoiding slack during the sheet winding process, and thus ensuring the winding quality of the sheet.

[0019] Furthermore, a first cylinder 14 is hinged to the upper surface of the horizontal end of the bottom of the frame 11, and the other end of the first cylinder 14 is hinged to the outer wall of the support frame 12. A positioning plate for horizontal support of the support frame 12 is provided on the outer wall of the vertical end of the frame 11. Through the hinged positioning of the first cylinder 14, the lever-type rotation adjustment of the support frame 12 can be realized, thereby facilitating the disassembly and assembly of the take-up roller 13 without the need for the take-up roller 13 to be suspended and positioned.

[0020] Furthermore, the tensioning assembly 2 includes a top plate 21, which is fixedly connected to the top horizontal end of the frame 11. A second cylinder 22 is fixedly connected to the upper surface of the top plate 21. The lifting end of the second cylinder 22 extends through to the bottom of the top plate 21 and is fixedly connected to an adjusting plate 23. The bottom of the adjusting plate 23 is rotatably connected to a tensioning roller 24 via an elastic assembly 3. The tensioning roller 24 is used to press and tension the sheet between the guide roller 15 and the take-up roller 13. Two sets of the second cylinder 22 and the elastic assembly 3 are provided, and the two sets of the second cylinder 22 and the elastic assembly 3 are respectively located in... At both ends of the adjusting plate 23, the second cylinder 22 drives the adjusting plate 23 to descend, which in turn drives the tension roller 24 to descend through the elastic component 3. The descent of the tension roller 24 can press down and tighten the sheet from the guide roller 15 to the take-up roller 13, preventing the sheet from loosening during the winding process. At the same time, the pressing position of the tension roller 24 can be adapted to the winding state of the take-up roller 13, further improving the flexibility of its tension adjustment. As the winding diameter of the take-up roller 13 increases, the pressing height of the tension roller 24 gradually increases.

[0021] Furthermore, the elastic component 3 includes a positioning cylinder 31, which is fixedly connected to the lower surface of the adjusting plate 23. A cover plate 32 is fixedly connected to the bottom of the positioning cylinder 31, and a telescopic shaft 34 slides through the axis of the positioning cylinder 31 and the cover plate 32. A positioning sleeve 35 is fixedly connected to the bottom of the telescopic shaft 34. A tensioning roller 24 is rotatably connected inside the positioning sleeve 35 via a ball bearing. A spring 33 is sleeved on the outside of the telescopic shaft 34. A limiting ring adapted to the sliding inside the positioning cylinder 31 is provided at one end of the telescopic shaft 34. The two ends of the spring 33 abut against the limiting ring and the cover plate 32 respectively. Through the elastic extension and contraction of the telescopic shaft 34, the tensioning roller 24 can be provided with good elastic support and positioning. Thus, when the tensioning roller 24 tensions the sheet, it can achieve adaptive elastic tension within a certain range, further improving the tightness and tension of the sheet winding and ensuring the winding quality of the sheet.

[0022] Working principle: After being guided by the guide roller 15, the sheet is wound around the outside of the take-up roller 13. The take-up roller 13 rotates to achieve the take-up of the sheet. At the same time, the tension roller 24 presses down to tighten the sheet from the guide roller 15 to the take-up roller 13, thereby ensuring the tightness of the sheet winding and improving the winding quality of the sheet.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A winding mechanism for a sheet extruder, characterized in that: The assembly includes a winding assembly (1), which includes a frame (11). A support frame (12) is rotatably connected inside the frame (11). A winding roller (13) is rotatably connected to one end of the support frame (12), and the winding roller (13) is used for winding the sheet. A guide roller (15) is rotatably connected to the upper end of the frame (11), and the guide roller (15) is used for guiding the winding of the sheet. The tensioning assembly (2) and the elastic assembly (3) are provided. The tensioning assembly (2) is located at the top horizontal end of the frame (11), and the elastic assembly (3) is used to connect the components of the tensioning assembly (2). The tensioning assembly (2) is used to adjust the tension of the sheet between the guide roller (15) and the take-up roller (13).

2. The winding mechanism of a sheet extruder according to claim 1, characterized in that: The frame (11) has a first cylinder (14) hinged to the upper surface of the horizontal end at the bottom, and the other end of the first cylinder (14) is hinged to the outer wall of the support frame (12). The frame (11) has a positioning plate for horizontal support of the support frame (12) on the outer wall of the vertical end.

3. The winding mechanism of a sheet extruder according to claim 1, characterized in that: The tensioning assembly (2) includes a top plate (21), and the top plate (21) is fixedly connected between the top horizontal ends of the frame (11). A second cylinder (22) is fixedly connected to the upper surface of the top plate (21). The lifting end of the second cylinder (22) extends through to the bottom of the top plate (21) and is fixedly connected to an adjusting plate (23). The bottom of the adjusting plate (23) is rotatably connected to a tensioning roller (24) through an elastic assembly (3).

4. The winding mechanism of a sheet extruder according to claim 3, characterized in that: The tensioning roller (24) is used to press and tension the sheet between the guide roller (15) and the winding roller (13). The second cylinder (22) and the elastic component (3) are provided in two sets, and the two sets of the second cylinder (22) and the elastic component (3) are respectively located at both ends of the adjusting plate (23).

5. The winding mechanism of a sheet extruder according to claim 4, characterized in that: The elastic component (3) includes a positioning cylinder (31), which is fixedly connected to the lower surface of the adjusting plate (23). A cover plate (32) is fixedly connected to the bottom of the positioning cylinder (31), and a telescopic shaft (34) slides through the axis of the positioning cylinder (31) and the cover plate (32). A positioning sleeve (35) is fixedly connected to the bottom of the telescopic shaft (34), and a tension roller (24) is rotatably connected inside the positioning sleeve (35) through a ball bearing.

6. The winding mechanism of a sheet extruder according to claim 5, characterized in that: The telescopic shaft (34) is fitted with a spring (33) on its outside. One end of the telescopic shaft (34) inside the positioning cylinder (31) is provided with a limiting ring that is adapted to slide inside the positioning cylinder (31), and the two ends of the spring (33) are respectively abutted between the limiting ring and the cover plate (32).

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