A three-axis rewinding device

Abstract

This application relates to the field of film rewinding equipment technology, and in particular to a triaxial rewinding machine for rewinding films. It includes a frame and a rewinding structure mounted on the frame. The machine is characterized by further including a take-up structure, an upper roll structure, and a feed unloading structure mounted on the frame. The take-up structure includes a take-up reel rotatably connected to the frame, with a first take-up roller, a second take-up roller, and a third take-up roller arranged circumferentially on the rewind reel. One of the first, second, and third take-up rollers is close to the rewinding structure, while one of the remaining two take-up rollers is located on one side of the feed unloading structure, and the other faces the upper roll structure. The feed unloading structure removes the rewound film and roll from the take-up rollers, and the upper roll structure mounts a new roll onto the take-up rollers in preparation for the next rewinding. The three take-up rollers work closely together, eliminating the need for manual feed unloading and loading operations, thus improving the rewinding efficiency of the rewinding machine.

Description

Technical Field

[0001] This application relates to the field of film rewinding equipment technology, and in particular to a triaxial rewinding equipment. Background Technology

[0002] A rewinding machine is a specialized film production equipment that rewinds the produced films sequentially. After rewinding, the films are rolled up into rolls and shipped out. A conventional rewinding machine has a two-shaft winding structure, where one winding shaft rewinds the film material, while the other winding shaft carries the rewound film to a designated position for unloading and preparation for the next winding, thus improving rewinding efficiency.

[0003] Since the film is rewound onto a roll, the film and the roll are removed together during unloading. After unloading, a new roll must be manually installed before the next winding can begin. However, the machine needs to be stopped during the process of removing the film roll and installing the new roll to ensure personnel safety. The rewinding machine still experiences a long downtime during this process, and the rewinding efficiency needs to be further improved. Utility Model Content

[0004] The purpose of this application is to provide a three-axis rewinding device, which aims to improve the problem that rewinders using a two-axis winding structure in related technologies still require a long downtime, and further improve the rewinding efficiency of the rewinder.

[0005] This application provides a triaxial rewinding device for rewinding films, including a frame and a rewinding structure disposed on the frame, as well as a winding structure, an upper cylinder structure, and a feeding structure disposed on the frame; the winding structure includes a winding reel rotatably connected to the frame, and the winding reel is provided with a first winding roller, a second winding roller, and a third winding roller along its circumferential direction; one of the first winding roller, the second winding roller, and the third winding roller is close to the rewinding structure, and one of the remaining two winding rollers is located on one side of the feeding structure, while the other winding roller faces the upper cylinder structure.

[0006] Furthermore, the first take-up roller, the second take-up roller, and the third take-up roller are arranged parallel to each other, and the first take-up roller, the second take-up roller, and the third take-up roller are evenly arranged along the circumferential direction of the take-up reel.

[0007] Furthermore, the feeding structure includes a feeding bracket disposed on the frame, a feeding guide rail disposed on the feeding bracket, and a feeding sliding seat slidably connected to the feeding guide rail; the feeding guide rail is laid and extends along the length direction of the feeding bracket, and the axial direction of the feeding guide rail is parallel to the axial direction of the winding roller.

[0008] Furthermore, the feeding sliding seat includes a sliding support seat slidably connected to the feeding guide rail. The sliding support seat is provided with a sliding guide rail facing the take-up roller. The sliding guide rail is slidably connected to a sliding push block for cooperating with feeding. The sliding push block is close to or away from the take-up roller.

[0009] Furthermore, the sliding pusher has an adaptation groove at one end facing the take-up roller, and the size and shape of the adaptation groove are adapted to the take-up roller.

[0010] Furthermore, the upper drum structure includes a drum container disposed on the frame, a drum guide rail, and a drum pusher block slidably connected to the drum guide rail. The drum pusher block faces the take-up roller and can be close to or away from the take-up roller.

[0011] Furthermore, the bottom of the roll container is connected to a roll limiting seat for supporting the roll, the axis of the roll limiting seat is collinear with the axis of the take-up roller, and the roll guide rail is laid and extends along the length direction of the roll limiting seat.

[0012] The beneficial effects of this application are: 1. A three-axis rewinding device according to this application, by setting a take-up reel with three take-up rollers at the rewinding device, the take-up reel drives the three take-up rollers to rotate. When the three-axis rewinding device is running, one of the take-up rollers faces the rewinding structure to cooperate with the rewinding structure to rewind the film, while the other two take-up rollers are located on one side of the feeding structure and facing the upper cylinder structure, respectively. The feeding structure is used to remove the rewound film and the roll from the take-up roller, and the upper cylinder structure is used to install a new roll on the take-up roller in preparation for the next rewinding. The three take-up rollers work together in coordination with the corresponding structures. The three take-up rollers work closely together without the need for manual feeding and loading operations, thereby realizing uninterrupted operation of the rewinding device and further improving the rewinding efficiency of the rewinding machine.

[0013] 2. A three-axis rewinding device according to this application has a feeding structure with a feeding guide rail and a feeding sliding seat. After the film is rewound onto the roll, the winding structure drives the winding roller to move to the feeding structure. The feeding sliding seat drives the sliding push block to push out and abut against the winding roller. The side of the sliding push block abuts against the side of the film roll. Then the feeding sliding seat moves along the feeding guide rail to drive the film roll to feed. The feeding structure is compact and the operation is fast and efficient.

[0014] 3. A three-axis rewinding device according to this application has an upper drum structure consisting of a drum container, a drum guide rail, and a drum pusher. When a new drum needs to be installed, the new drum moves to the drum limiting seat through the drum container. Then, the drum pusher moves along the drum guide rail to move the new drum along the drum limiting seat to the corresponding take-up roller and install it in the take-up roller. The upper drum structure replaces manual installation of the drum, which can effectively reduce labor consumption, improve drum installation efficiency, and ensure rewinding efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a three-axis rewinding device provided in an embodiment of this application; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the winding structure, unloading structure, and upper cylinder structure in the embodiments of this application.

[0016] Explanation of reference numerals in the attached figures: 1. Frame; 2. Rewinding structure; 3. Winding structure; 31. Winding reel; 32. First winding roller; 33. Second winding roller; 34. Third winding roller; 4. Feeding structure; 41. Feeding bracket; 42. Feeding guide rail; 43. Feeding sliding seat; 431. Sliding support seat; 432. Sliding guide rail; 433. Sliding push block; 4331. Adaptive groove; 5. Upper drum structure; 51. Drum container; 511. Drum limit seat; 52. Drum guide rail; 53. Drum push block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0020] Reference Figure 1as well as Figure 2 This application provides a triaxial rewinding device for rewinding films. It includes a frame 1 and a rewinding structure 2 disposed on the frame 1, as well as a take-up structure 3, an upper roll structure 5, and a feed unloading structure 4 disposed on the frame 1. During operation, the film is fed into the rewinding structure 2, which rewinds the film and then feeds it into the take-up structure 3. The take-up structure 3, in conjunction with the roll, winds the film. After winding, the feed unloading structure 4 feeds the film roll from the take-up structure 3. The upper roll structure 5 then installs a new roll onto the take-up structure 3 after feeding to prepare for the next winding. This process requires no manual intervention, thereby further improving rewinding efficiency.

[0021] Specifically, frame 1 is used to support and install various structures. Rewinding structure 2 includes several rewinding rollers rotatably connected to frame 1. The rewinding rollers are parallel to each other and arranged along the length of frame 1. After the film enters rewinding structure 2, it is rewound and conveyed into winding structure 3 by the several rewinding rollers. Rewinding structure 2 is existing technology, and its specific structure and working principle will not be described in detail.

[0022] The winding structure 3 includes a winding reel 31 rotatably connected to the frame 1, which is driven to rotate by a motor. The winding reel 31 is rotatably equipped with a first winding roller 32, a second winding roller 33, and a third winding roller 34 along its circumferential direction. When the winding reel 31 rotates, the three winding rollers rotate synchronously. The first winding roller 32, the second winding roller 33, and the third winding roller 34 are arranged parallel to each other and are evenly distributed along the circumferential direction of the winding reel 31. The first winding roller 32, the second winding roller 33, and the third winding roller 34 have the same structure. One of the first winding roller 32, the second winding roller 33, and the third winding roller 34 is close to the rewinding structure 2, while one of the remaining two winding rollers is located on one side of the unloading structure 4, and the other winding roller faces the upper drum structure 5.

[0023] With this setup, when the rewinding equipment is running and rewinding, the first take-up roller closest to the rewinding structure 2 will continuously wind up the film material. At this time, the second take-up roller, carrying the wound film roll, is located at the unloading structure 4, which unloads and removes the wound film roll. After the film and roll are unloaded, the third take-up roller is located at the upper roll structure 5, where a new roll is remounted and installed at the third take-up roller to prepare for a new round of winding. After the first take-up roller finishes winding, the three take-up rollers rotate under the drive of the take-up reel 31. The first take-up roller moves to the position previously held by the second take-up roller for unloading, the second take-up roller moves to the position previously held by the third take-up roller for installing a new roll, and the third take-up roller moves to the position previously held by the first take-up roller for rewinding, allowing the rewinding equipment to operate continuously without stopping.

[0024] Reference Figure 1 , Figure 2 as well as Figure 3 The feeding structure 4 includes a feeding bracket 41 mounted on the frame 1, a feeding guide rail 42 mounted on the feeding bracket 41, a feeding sliding seat 43 slidably connected to the feeding guide rail 42, and a sliding seat drive for driving the feeding sliding seat 43. The feeding bracket 41 is horizontally positioned and extends along the length direction of the take-up roller. The feeding guide rail 42 is fixed to the feeding bracket 41 and extends along the length direction of the feeding bracket 41. The axial direction of the feeding guide rail 42 is parallel to the axial direction of the take-up roller. In this embodiment, the sliding seat drive is a cylinder, and the feeding sliding seat 43 is connected to the piston end of the cylinder. Driven by the sliding seat drive, the feeding sliding seat 43 moves along the length direction of the feeding guide rail 42, allowing the feeding sliding seat 43 to move from one end of the take-up roller along its length direction to the other end, thereby removing the film and the roll.

[0025] Specifically, the feeding sliding seat 43 includes a sliding support seat 431 slidably connected to the feeding guide rail 42, and one side of the sliding support seat 431 is fixedly connected to the piston end of the cylinder. The sliding support seat 431 is provided with a sliding guide rail 432 facing the take-up roller. The sliding guide rail 432 is horizontally arranged and its axis is perpendicular to the axis of the take-up roller. A sliding push block 433 for cooperating with feeding is slidably connected to the sliding guide rail 432. The sliding push block 433 is driven by a sliding cylinder, so that the sliding push block 433 moves on the sliding guide rail 432 to approach or move away from the take-up roller. At the same time, the end of the sliding push block 433 facing the take-up roller is provided with a matching groove 4331, the size and shape of which are adapted to the take-up roller.

[0026] With the feeding slide seat 43 configured in this way, after the take-up shaft carrying the film and roll is moved into position, the feeding slide seat first moves to the end of the take-up shaft near the take-up reel 31. Then, the sliding push block is pushed out, and the sliding push block continuously approaches the take-up shaft until the sliding push block abuts against one end of the take-up shaft through the matching groove 4331. Then, the feeding slide seat 43 moves towards the end of the take-up shaft away from the take-up reel 31. During this movement, the sliding push block 433 will abut against one side of the film roll and apply a pushing force to the film roll, thereby causing the film roll to disengage from the take-up roller. After the film roll disengages from the take-up roller, the sliding push block 433 and the feeding slide seat 43 reset to prepare for the next feeding. The fed take-up roller will then move to the upper roll structure 5.

[0027] The upper drum structure 5 includes a drum container 51 disposed on the frame 1, a drum guide rail 52, a drum pusher block 53 slidably connected to the drum guide rail 52, and a pusher block drive for driving the drum pusher block 53. The drum pusher block 53 faces the take-up roller and can be close to or away from the take-up roller. In this embodiment, the drum container 51 is disposed on one side above the corresponding take-up roller, and the drum container 51 has a cavity for accommodating and supporting the drum. The bottom of the drum container 51 is connected to a drum limiting seat 511 for supporting the drum. The drum limiting seat 511 is connected to the cavity, and the cross-section of the drum limiting seat 511 is "V" shaped, and the axis of the drum limiting seat 511 is collinear with the axis of the take-up roller. The connection between the roll container 51 and the roll limit seat 511 has a stop for controlling the roll's conduction. The stop is driven by a cylinder. In the initial state, the stop closes the connection between the roll container 51 and the roll limit seat 511 to prevent the roll from entering the roll limit seat 511 from the roll container 51. When a new roll needs to be loaded, the cylinder drives the stop to move, and the stop moves away from the connection to achieve conduction, allowing the roll to enter the roll limit seat 511 from the roll container 51.

[0028] The drum guide rail 52 extends along the length of the drum limiting seat 511. The drum pusher 53 is sleeved on the drum guide rail 52 to achieve sliding. The pusher drive is a cylinder. The drum pusher 53 is connected to the piston end of the pusher drive. Under the drive of the pusher drive, the drum pusher 53 slides along the drum guide rail 52. The drum pusher 53 moves from the end of the drum guide rail 52 away from the take-up shaft to the end close to the take-up shaft, thereby pushing the drum out of the drum limiting seat 511.

[0029] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A three-axis rewinding apparatus for rewinding a film, comprising a frame (1) and a rewinding structure (2) arranged to the frame (1), characterized in that, It also includes a winding structure (3), an upper cylinder structure (5), and a feeding structure (4) disposed on the frame (1); the winding structure (3) includes a winding reel (31) rotatably connected to the frame (1), and the winding reel (31) is provided with a first winding roller (32), a second winding roller (33), and a third winding roller (34) along its circumferential direction; one of the first winding roller (32), the second winding roller (33), and the third winding roller (34) is close to the rewinding structure (2), and one of the remaining two winding rollers is located on one side of the feeding structure (4), and the other winding roller faces the upper cylinder structure (5).

2. The triaxial rewinding equipment according to claim 1, characterized in that, The first take-up roller (32), the second take-up roller (33), and the third take-up roller (34) are arranged parallel to each other, and the first take-up roller (32), the second take-up roller (33), and the third take-up roller (34) are evenly arranged along the circumferential direction of the take-up reel (31).

3. The triaxial rewinding equipment according to claim 2, characterized in that, The feeding structure (4) includes a feeding bracket (41) disposed on the frame (1), a feeding guide rail (42) disposed on the feeding bracket (41), and a feeding sliding seat (43) slidably connected to the feeding guide rail (42); the feeding guide rail (42) is laid and extends along the length direction of the feeding bracket (41), and the axial direction of the feeding guide rail (42) is parallel to the axial direction of the winding roller.

4. A triaxial rewinding device according to claim 3, characterized in that, The feeding slide seat (43) includes a sliding support seat (431) slidably connected to the feeding guide rail (42). The sliding support seat (431) is provided with a sliding guide rail (432) facing the take-up roller. The sliding guide rail (432) is slidably connected with a sliding push block (433) for cooperating with feeding. The sliding push block (433) is close to or away from the take-up roller.

5. A triaxial rewinding device according to claim 4, characterized in that, The sliding pusher (433) has an adaptation groove (4331) at one end facing the take-up roller, and the size and shape of the adaptation groove (4331) are adapted to the take-up roller.

6. A triaxial rewinding device according to any one of claims 1-5, characterized in that, The upper drum structure (5) includes a drum container (51) disposed on the frame (1), a drum guide rail (52) and a drum pusher (53) slidably connected to the drum guide rail (52). The drum pusher (53) faces the take-up roller and can be close to or away from the take-up roller.

7. A three-axis rewinding device according to claim 6, characterized in that, The bottom of the roll container (51) is connected to a roll limit seat (511) for supporting the roll. The axis of the roll limit seat (511) is collinear with the axis of the take-up roller. The roll guide rail (52) is laid and extends along the length direction of the roll limit seat (511).

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