Coreless winding mechanism

Abstract

The utility model discloses a kind of coreless winding mechanism, involve coreless winding mechanism technical field, including unwinding mechanism and host computer, the winding assembly is symmetrically installed on host computer left and right, the winding assembly includes the fixed plate fixed on host computer left and right symmetry, and unloading winding cylinder is fixed on the fixed plate.The coreless winding mechanism, through the collaborative action of unloading winding cylinder, movable plate, sliding axle and limit sleeve, after winding is completed, the automatic ejection of roll is realized, when winding reaches set length and is cut after being cut by cutting mechanism, unloading winding cylinder pushes movable plate and coreless winding shaft whole and moves outward, and the roll that winding is good is blocked by fixed limit sleeve in moving process, to be separated from coreless winding shaft automatically, this process does not need manual intervention completely, completely get rid of the dependence on roll core, not only save roll core cost, more greatly improve unloading efficiency, reduce the labor intensity and security risk of worker.

Description

Technical Field

[0001] This utility model relates to the technical field of coreless winding mechanisms, specifically a coreless winding mechanism. Background Technology

[0002] In the processing of roll materials such as films, paper, and composite materials, winding is the final critical step in the production process. Traditional winding methods generally use cored winding, which requires the pre-installation of a heavy core (such as a paper tube or steel tube) before winding. This method has many drawbacks: First, the procurement, storage, and management of the core increases production costs and space requirements; second, after winding, manual labor or auxiliary equipment is needed to unload the heavy roll from the core, which is cumbersome, labor-intensive, and poses safety hazards, affecting overall production efficiency; finally, the roll change process requires stopping the machine to thread the core and unload the roll, making it difficult to achieve truly continuous and fully automated production. Although some coreless winding technologies have emerged in the market, the unloading process often still requires a lot of manual intervention, resulting in insufficient automation, or the equipment structure is complex, and its stability and reliability need to be improved. Utility Model Content

[0003] The purpose of this invention is to provide a coreless winding mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coreless winding mechanism, including an unwinding mechanism and a main unit, wherein winding components are symmetrically installed on the main unit, and the winding components include fixed plates symmetrically fixed on the main unit. Unwinding cylinders are fixed on the fixed plates, and the output end of the unwinding cylinders is fixed to a movable plate. A coreless winding shaft is connected to the movable plate by a bearing.

[0005] Preferably, a roll of material is installed on the unwinding mechanism, and a web guiding machine is provided behind the roll of material, and a main unit is provided behind the web guiding machine. The material on the roll of material can be released through the unwinding mechanism to ensure the normal operation of the device.

[0006] Preferably, the main unit is equipped with an air knife assembly for slitting materials, and a cutting mechanism is provided on the rear side of the air knife assembly. The cutting mechanism is installed on the main unit. Through the above structure, the slitting and cutting of materials can be realized, thereby providing a basic guarantee for the operation of the device.

[0007] Preferably, the movable plate is fixed with sliding shafts, and three sliding shafts are provided. The sliding shafts are slidably connected to the sleeve, while the sleeve is fixedly connected to the movable plate. When the unwinding cylinder extends and drives the movable plate to move, the sliding guide effect between the sliding shafts and the sleeve can ensure the stability of the movable plate's movement.

[0008] Preferably, a motor is fixed on the movable plate, and a drive wheel is fixed at the output end of the motor. The surface of the drive wheel is provided with toothed blocks. Through the above structure, a basic guarantee can be provided for the winding of the slit material.

[0009] Preferably, a driven wheel is fixed on the coreless take-up shaft, and toothed blocks are evenly arranged on the surface of the driven wheel. The driven wheel is connected to the driving wheel through a toothed belt. At the same time, the diameter of the driving wheel is smaller than the diameter of the driven wheel. Through the above structure, an extrusion force can be provided for the rotation of the coreless take-up shaft, thereby ensuring the normal operation of the device.

[0010] Preferably, the length of the coreless take-up shaft is less than the length of the sliding shaft, and the coreless take-up shaft is provided with a slot. The slot can be used to conveniently position the end of the material, thereby providing a basic guarantee for the winding of the material.

[0011] Preferably, the coreless take-up shaft and the limiting sleeve are slidably connected, and the limiting sleeve is fixed on the fixed plate. Through the sliding guiding effect between the coreless take-up shaft and the limiting sleeve, the stability of the movement of the coreless take-up shaft can be ensured, and the material to be wound up later can be easily separated from the coreless take-up shaft.

[0012] Preferably, a pressure roller assembly is provided on the front side of the coreless winding shaft, and the bearing of the pressure roller assembly is connected to the fixed plate. Through the action of the pressure roller assembly, the slit material can be pressed and positioned to ensure the normal winding of the material.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This coreless winding mechanism, through the coordinated action of the unwinding cylinder, the movable plate, the sliding shaft, and the limiting sleeve, realizes the automatic ejection and detachment of the material roll after winding. When the winding reaches the set length and is cut by the slitting mechanism, the unwinding cylinder pushes the movable plate and the coreless winding shaft to move outward as a whole. During the movement, the wound material roll is blocked by the fixed limiting sleeve, thus automatically separating from the coreless winding shaft. This process requires no manual intervention, completely eliminating the dependence on the core, saving core costs, greatly improving unwinding efficiency, and reducing the labor intensity and safety hazards of workers. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the overall composition of the device of this utility model; Figure 2 This is a rear-view three-dimensional structural diagram of the winding assembly of this utility model; Figure 3 This is a frontal three-dimensional structural diagram of the coreless winding shaft of this utility model.

[0015] In the diagram: 1. Unwinding mechanism; 2. Roll material; 3. Straightening machine; 4. Main unit; 5. Air knife assembly; 6. Slitting mechanism; 7. Rewinding assembly; 71. Fixed plate; 72. Unwinding cylinder; 73. Movable plate; 74. Sliding shaft; 75. Sleeve; 76. Motor; 761. Drive wheel; 77. Coreless rewinding shaft; 771. Driven wheel; 772. Slot; 78. Limit sleeve; 79. Pressure roller assembly. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-3 This utility model provides a technical solution: a coreless winding mechanism, including an unwinding mechanism 1 and a main unit 4. A winding assembly 7 is symmetrically installed on the main unit 4. The winding assembly 7 includes a fixing plate 71 symmetrically fixed on the main unit 4. An unwinding cylinder 72 is fixed on the fixing plate 71. The output end of the unwinding cylinder 72 is fixed to a movable plate 73. A coreless winding shaft 77 is connected to the movable plate 73 by a bearing.

[0018] A roll of material 2 is mounted on the unwinding mechanism 1, and a web guiding machine 3 is located behind the roll of material 2. A main unit 4 is located behind the web guiding machine 3. An air knife assembly 5 is mounted on the main unit 4 for slitting the material, and a slitting mechanism 6 is located behind the air knife assembly 5. The slitting mechanism 6 is mounted on the main unit 4. A motor 76 is fixed on the movable plate 73, and a drive wheel 761 is fixed at the output end of the motor 76. The surface of the drive wheel 761 is provided with toothed blocks. A driven wheel 771 is fixed on the coreless take-up shaft 77, and toothed blocks are evenly provided on the surface of the driven wheel 771. The driven wheel 771 is connected to the drive wheel 761 through a toothed belt. The diameter of the drive wheel 761 is smaller than the diameter of the driven wheel 771. The length of the coreless take-up shaft 77 is smaller than the length of the sliding shaft 74. A slot 772 is provided on the coreless take-up shaft 77. A pressure roller assembly 79 is located at the front of the coreless take-up shaft 77, and the pressure roller assembly 79 is connected to the fixed plate 71 by a bearing. When using this coreless winding mechanism, such as Figures 1-3As shown, the unwinding mechanism 1 releases the material from the roll 2 and nests the end of the material into the slot 772. The motor 76 drives the drive wheel 761 to rotate. The transmission between the drive wheel 761, the belt (not shown), and the driven wheel 771 causes the coreless take-up shaft 77 and the slot 772 to rotate, thus winding the material. During the material release process, the alignment machine 3 corrects the deviation of the running material. The air knife assembly 5 cuts the wide material into multiple narrow strips, allowing these narrow strips to be wound on the coreless take-up shaft 77. The pressure roller assembly 79 positions the material, ensuring proper winding after slitting. When the material is wound to a fixed length, the slitting mechanism 6 cuts the material for the next winding (the alignment machine 3, air knife assembly 5, and slitting mechanism 6 are all existing known devices and will not be described in detail). The movable plate 73 is fixed with a sliding shaft 74, and there are three sliding shafts 74. The sliding shaft 74 is slidably connected to the sleeve 75, while the sleeve 75 is fixedly connected to the movable plate 73. The coreless winding shaft 77 is slidably connected to the limiting sleeve 78, and the limiting sleeve 78 is fixed on the fixed plate 71. When the material on the coreless take-up shaft 77 is wound to a fixed length, the material can be cut by the slitting mechanism 6. After cutting, the unwinding cylinder 72 is extended by controlling it, which can drive the movable plate 73 and the coreless take-up shaft 77 to move. With the sliding guide between the sliding shaft 74 and the sleeve 75, the stability of the movement of the movable plate 73 can be ensured. When the coreless take-up shaft 77 moves, the material wound on the coreless take-up shaft 77 is positioned by contacting the limiting sleeve 78, which can automatically detach multiple narrow materials wound on both sides from the coreless take-up shaft 77, thereby realizing automatic unloading for the next winding.

[0019] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A coreless winding mechanism, comprising an unwinding mechanism (1) and a main unit (4), characterized in that: The main unit (4) is symmetrically equipped with a winding assembly (7). The winding assembly (7) includes a fixing plate (71) symmetrically fixed on the main unit (4). A roll unloading cylinder (72) is fixed on the fixing plate (71). The output end of the roll unloading cylinder (72) is fixed to a movable plate (73). A coreless winding shaft (77) is connected to the movable plate (73) by a bearing.

2. The coreless winding mechanism according to claim 1, characterized in that: The unwinding mechanism (1) is equipped with a roll material (2), and a web guiding machine (3) is provided on the rear side of the roll material (2), and a main unit (4) is provided on the rear side of the web guiding machine (3).

3. The coreless winding mechanism according to claim 1, characterized in that: The host (4) is equipped with an air knife assembly (5) for slitting materials, and a cutting mechanism (6) is provided on the rear side of the air knife assembly (5), and the cutting mechanism (6) is installed on the host (4).

4. The coreless winding mechanism according to claim 1, characterized in that: The movable plate (73) is fixed with a sliding shaft (74), and there are three sliding shafts (74). The sliding shaft (74) is slidably connected to the sleeve (75), while the sleeve (75) is fixedly connected to the movable plate (73).

5. The coreless winding mechanism according to claim 1, characterized in that: A motor (76) is fixed on the movable plate (73), and a drive wheel (761) is fixed at the output end of the motor (76), and tooth blocks are provided on the surface of the drive wheel (761).

6. The coreless winding mechanism according to claim 1, characterized in that: A driven wheel (771) is fixed on the coreless take-up shaft (77), and tooth blocks are evenly arranged on the surface of the driven wheel (771). The driven wheel (771) is connected to the driving wheel (761) through a toothed belt. At the same time, the diameter of the driving wheel (761) is smaller than the diameter of the driven wheel (771). The length of the coreless take-up shaft (77) is smaller than the length of the sliding shaft (74), and a slot (772) is provided on the coreless take-up shaft (77).

7. The coreless winding mechanism according to claim 1, characterized in that: The coreless take-up shaft (77) and the limiting sleeve (78) are slidably connected, and the limiting sleeve (78) is fixed on the fixing plate (71).

8. The coreless winding mechanism according to claim 1, characterized in that: The coreless take-up shaft (77) is provided with a pressure roller group (79) on its front side, and the pressure roller group (79) is connected to the fixed plate (71) by a bearing.

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