A quick core changing device for a rewinder
The design of the quick-release mechanism and guide shell solves the problem of cumbersome core replacement operation in rewinding machines, enabling rapid installation and disassembly of cores and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN FEIMA PLASTICS IND CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
The replacement of the core in existing rewinding machines is cumbersome, time-consuming, and labor-intensive, resulting in low production efficiency.
The design incorporates a quick-release mechanism and a guide shell. The quick-release mechanism enables the rapid installation and removal of the core through the cooperation of an arc-shaped slider and bolts and nuts. The guide shell is used to temporarily store a full roll of core to reduce the transportation distance.
It enables quick replacement of the winding core, saves disassembly time, reduces downtime, and improves production efficiency.
Smart Images
Figure CN224512758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rewinder core technology, and in particular to a quick rewinder core replacement device. Background Technology
[0002] The core component of a rewinder is the roll core, typically used to support and wind various materials such as paper and plastic film. During the rewinding process, the material, like a light ribbon, is tightly and neatly wound around the core, forming neat rolls. This not only facilitates subsequent storage and use but also greatly facilitates the transportation and processing of materials.
[0003] Replacing existing rewinding cores after they are fully wound often presents numerous inconveniences. The disassembly process is cumbersome and extremely troublesome. Typically, we need to carefully remove the fully wound core, then laboriously transport it to the storage location before installing the new core. This series of operations not only consumes a lot of time but also a significant amount of manpower. Therefore, there is an urgent need for a rewinding machine core quick-change device to solve these problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick core replacement device for rewinding machines.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A quick-change device for rewinding machine cores includes an H-shaped mounting plate. Mounting blocks are fixed to one side of the top of each H-shaped mounting plate. A take-up core is located on the side of the two mounting blocks that are close to each other. One end of each mounting block is equipped with a quick-release mechanism for quickly fixing and disassembling the take-up core. The quick-release mechanism includes a rotating rod rotatably connected to one end of each of the two mounting blocks. An arc-shaped fixing cylinder is fixed to the bottom of the side of each rotating rod that is close to each other. An arc-shaped groove is formed inside the arc-shaped fixing cylinder, and an arc-shaped slider slides inside the arc-shaped groove. A connecting plate is fixed to the other end of the arc-shaped slider and the end of the arc-shaped fixing cylinder that is close to each other. Two interconnected holes are formed at the top and bottom of each connecting plate, and bolts are inserted through these holes. A matching nut is provided on the bottom of the outer wall of the bolt. The arc-shaped slider wraps around the outer wall of one end of the rotating rod, thus limiting the position of the take-up core.
[0007] Preferably, the two rotating rods have notches on their sides that are close to each other, and the bottom of each notch has a slot.
[0008] Preferably, the inner wall of the winding core is fixed with a rotating shaft, and the bottom of both ends of the rotating shaft is provided with notches flush with the notch, and the bottom of each notch is fixed with a locking block, and the locking block is adapted to the locking slot. When the locking block is locked into the locking slot, it can be initially limited.
[0009] Preferably, the inner wall of the arc-shaped slider is provided with an anti-slip pad.
[0010] Preferably, a motor is mounted on one end of one of the mounting blocks, and the output shaft of the motor is fixedly connected to one end of one of the rotating rods.
[0011] Preferably, guide shells are fixed at the four top corners of the H-shaped mounting plate. The top of the guide shell is semi-circular, and the inner wall of the semi-circular shape is provided with a mounting groove. Multiple auxiliary rollers are rotatably connected inside the mounting groove. Two guide shells located on one side of the top of the H-shaped mounting plate can support and guide the rotating rod, and two guide shells located on the other side of the H-shaped mounting plate can temporarily place the fully wound core.
[0012] Preferably, the bottom four corners of the H-shaped mounting plate are fixed with support columns, and the bottom of the support columns is fixed with the same base.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. Thanks to the quick-release mechanism, by unscrewing the nut away from the bolt and releasing the limiting effect on the two connecting plates, the operator can directly remove the shaft from the interface. During installation, the clip is paired with the slot and inserted, then the arc-shaped slider is rotated to bring the two connecting plates into contact. The bolts and nuts then limit the two connecting plates, thus achieving the effect of quick installation and disassembly of the winding core. This saves disassembly time, reduces downtime, and improves overall production efficiency.
[0015] 2. Thanks to the use of guide shells, workers can temporarily place the fully wound take-up core on top of the other two guide shells, and then directly install new take-up cores, reducing the distance to be transported and saving time and effort. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a quick core replacement device for a rewinder proposed in this utility model;
[0017] Figure 2 This is a partial structural diagram of the quick-release mechanism of a rewinder core quick-change device proposed in this utility model;
[0018] Figure 3 This is a cross-sectional view of the arc-shaped fixing cylinder of a quick-change device for rewinding machine cores proposed in this utility model;
[0019] Figure 4 This is a partial structural diagram of one end of the winding core of a rewinding machine core quick change device proposed in this utility model;
[0020] Figure 5 This is a partial structural diagram of the guide shell of a quick-change device for the core of a rewinder proposed in this utility model.
[0021] In the diagram: 1. Base; 101. H-shaped mounting plate; 102. Support column; 2. Mounting block; 201. Motor; 202. Rotating rod; 203. Notch; 204. Slot; 205. Arc-shaped fixing cylinder; 206. Arc-shaped slider; 207. Arc-shaped slide groove; 208. Anti-slip pad; 209. Connecting plate; 210. Bolt; 211. Nut; 3. Rewinding core; 301. Rotating shaft; 302. Locking block; 4. Guide shell; 401. Mounting groove; 402. Auxiliary roller. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-5 A quick-change device for rewinding machine cores includes an H-shaped mounting plate 101. Mounting blocks 2 are fixed on one side of the top of the H-shaped mounting plate 101. A winding core 3 is provided on the side of the two mounting blocks 2 that is close to each other. A quick-release mechanism for quickly fixing and disassembling the winding core 3 is provided at one end of the mounting block 2.
[0024] The quick-release mechanism includes a rotating rod 202 rotatably connected to one end of two mounting blocks 2. An arc-shaped fixing cylinder 205 is fixed to the bottom of the side of the two rotating rods 202 that are close to each other. An arc-shaped groove 207 is provided inside the arc-shaped fixing cylinder 205, and an arc-shaped slider 206 is slidably provided inside the arc-shaped groove 207. A connecting plate 209 is fixed to the other end of the arc-shaped slider 206 and the end of the outer surface of the arc-shaped fixing cylinder 205 that are close to each other. Two through holes are provided at the top and bottom of the two connecting plates 209, and a bolt 210 is inserted through the hole. A matching nut 211 is provided at the bottom of the outer wall of the bolt 210. The outer wall of one end of the rotating rod 202 is wrapped by the arc-shaped slider 206, and the winding core 3 is limited.
[0025] In this utility model, the two rotating rods 202 are provided with notches 203 on the side that are close to each other, and the bottom of each notch 203 is provided with a slot 204.
[0026] In this utility model, a rotating shaft 301 is fixed to the inner wall of the winding core 3, and the bottom of both ends of the rotating shaft 301 are provided with notches flush with the notch 203, and a locking block 302 is fixed to the bottom of each notch, and the locking block 302 is adapted to the locking groove 204. When the locking block 302 is inserted into the locking groove 204, it can be initially limited.
[0027] In this utility model, the inner wall of the arc-shaped slider 206 is provided with an anti-slip pad 208.
[0028] In this utility model, a motor 201 is installed at one end of one of the mounting blocks 2, and the output shaft of the motor 201 is fixedly connected to one end of one of the rotating rods 202.
[0029] In this utility model, guide shells 4 are fixed at the four corners of the top of the H-shaped mounting plate 101. The top of the guide shell 4 is semi-arc, and the inner wall of the semi-arc is provided with a mounting groove 401. Multiple auxiliary rollers 402 are rotatably connected inside the mounting groove 401. Two guide shells 4 located on one side of the top of the H-shaped mounting plate 101 can support and guide the rotating rod 202. Two guide shells 4 located on the other side of the H-shaped mounting plate 101 can temporarily place the fully wound take-up core 3.
[0030] In this utility model, support columns 102 are fixed at the four bottom corners of the H-shaped mounting plate 101, and the bottom of the support columns 102 is fixed with the same base 1.
[0031] Working principle: When the outer wall of the take-up core 3 is fully wound with roll material, it needs to be disassembled. At this time, the multiple nuts 211 are unscrewed from the outer wall of the bolts 210, and then the limiting of the two connecting plates 209 is released. Then, the arc-shaped slider 206 is rotated and slids inside the arc-shaped groove 207. Then, the arc-shaped slider 206 is stored inside the arc-shaped groove 207. Then, the surface of the notch 203 is opened, and the operator can directly take out the take-up core 3. After taking out the take-up core 3, the rotating shaft 301 is placed on the top of the two guide shells 4 on the other side of the top of the H-shaped mounting plate 101 for temporary storage. Then, the operator can directly... To install the new take-up core 3, insert the locking block 302 at the bottom of the rotating shaft 301 into the corresponding slot 204, then rotate the arc-shaped slider 206 to bring the connecting plate 209 into contact with another connecting plate 209. Then, use the bolts 210 and nuts 211 to limit and fix the two connecting plates 209. At this time, the anti-slip pad 208 will contact the outer surface of the rotating shaft 301, thus achieving the effect of quick installation and disassembly of the take-up core 3, saving disassembly time. When using the take-up core 3 to rewind the roll material, the worker can move the take-up core 3 placed on top of the other two guide shells 4 to the next process for processing.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quick core changing device for a rewinding machine, comprising an H-type mounting plate (101), characterized in that, The top side of the H-shaped mounting plate (101) is fixed with mounting blocks (2), and the two mounting blocks (2) are provided with a winding core (3) on the side that is close to each other. One end of the mounting block (2) is provided with a quick-release mechanism for quickly fixing and disassembling the winding core (3). The quick-release mechanism includes a rotating rod (202) rotatably connected to one end of two mounting blocks (2). An arc-shaped fixing cylinder (205) is fixed to the bottom of the side of the two rotating rods (202) that are close to each other. An arc-shaped sliding groove (207) is provided inside the arc-shaped fixing cylinder (205), and an arc-shaped slider (206) is slidably provided inside the arc-shaped sliding groove (207). A connecting plate (209) is fixed to the other end of the arc-shaped slider (206) and the end of the outer surface of the arc-shaped fixing cylinder (205) that are close to each other. Two communicating holes are provided at the top and bottom of the two connecting plates (209), and a bolt (210) is provided through the hole. A matching nut (211) is provided at the bottom of the outer wall of the bolt (210).
2. The rewinding machine core quick change apparatus according to claim 1, characterized in that, The two rotating rods (202) have notches (203) on their sides that are close to each other, and the bottom of each notch (203) has a slot (204).
3. The rewinding machine core quick change apparatus according to claim 2, characterized in that, The inner wall of the winding core (3) is fixed with a rotating shaft (301), and the bottom of both ends of the rotating shaft (301) is provided with notches flush with the notch (203), and the bottom of the notches is fixed with a locking block (302), and the locking block (302) is compatible with the locking slot (204).
4. The rewinding machine core quick change apparatus according to claim 1, characterized by, The inner wall of the arc-shaped slider (206) is provided with an anti-slip pad (208).
5. The rewinding machine core quick change apparatus according to claim 1, characterized by, One of the mounting blocks (2) is equipped with a motor (201) at one end, and the output shaft of the motor (201) is fixedly connected to one end of one of the rotating rods (202).
6. The rewinding machine core quick change apparatus according to claim 1, characterized by The top four corners of the H-shaped mounting plate (101) are fixed with guide shells (4). The top of the guide shell (4) is semi-arc, and the inner wall of the semi-arc is provided with a mounting groove (401). Multiple auxiliary rollers (402) are rotatably connected inside the mounting groove (401).
7. The rewinding machine core quick change apparatus according to claim 1, characterized by The bottom four corners of the H-shaped mounting plate (101) are fixed with support columns (102), and the bottom of the support columns (102) is fixed with the same base (1).