A winding positioning mechanism for packaging film

Abstract

The application discloses a winding positioning mechanism for packaging film and belongs to the technical field of winding positioning. The winding positioning mechanism for packaging film comprises a fixing frame, the inside of the fixing frame is provided with a winding positioning assembly, one side of the inside of the fixing frame is provided with a pair of conveying cylinders, the outer walls of the conveying cylinders are respectively fixedly connected with thread soft rubber strips with opposite thread directions, the inside of the fixing frame is rotationally connected with double-end threaded rods with opposite thread directions at two ends, the thread soft rubber strips with opposite thread directions at the two sides of the outer walls are synchronously rotated by rotating the rods and the conveying cylinders. When the packaging film passes through the conveying cylinders, the thread soft rubber strips expand the two sides of the packaging film outward through thread thrust, cooperate with the tension of the packaging film itself, effectively stretch and flatten the film material. Wrinkles and curling generated in the conveying process of the packaging film are eliminated, the packaging film after winding is smooth, packaging quality problems caused by the wrinkles are avoided, positioning in the later period is facilitated, and product appearance and reliability are improved.

Description

Technical Field

[0001] This application relates to the field of winding and positioning technology, and more specifically, to a winding and positioning mechanism for packaging film. Background Technology

[0002] A packaging film winding and positioning mechanism is a device used in the packaging film winding process. It can accurately determine the position and direction of the packaging film during the winding process, ensuring that the winding is neat and tight, avoiding problems such as offset and wrinkles, thereby improving the quality and efficiency of packaging film winding.

[0003] Packaging films are prone to wrinkles and curling due to uneven tension during transport. Traditional winding methods are difficult to effectively flatten the film material, resulting in unevenness after winding. At the same time, the positioning adjustment of film materials of different sizes lacks flexibility, and lateral deviation can easily cause loose winding and uneven edges, affecting aesthetics and reliability.

[0004] In view of this, this application proposes a winding and positioning mechanism for packaging film. Utility Model Content

[0005] The purpose of this application is to provide a winding and positioning mechanism for packaging film, which solves the technical problems in the background art.

[0006] This application provides a winding and positioning mechanism for packaging film, including a fixing frame, wherein the fixing frame is provided with a winding and positioning component inside the fixing frame;

[0007] A pair of conveying cylinders are provided on one side inside the fixed frame. Threaded soft rubber strips with opposite thread directions are fixedly connected to both sides of the outer wall of the conveying cylinders. A double-headed threaded rod with opposite thread directions at both ends is rotatably connected inside the fixed frame. The outer walls of both ends of the double-headed threaded rod are rotatably connected to moving blocks by threads. A positioning frame is fixedly connected to the lower end face of the moving block. A top rod is rotatably connected to the end faces of the two positioning frames that are close to each other.

[0008] Optionally, a knob is provided on one side of the side wall of the fixing frame, and one end of the knob is fixedly connected to a double-threaded rod.

[0009] Optionally, a mounting bracket is fixedly connected to the side wall of the fixed frame, and a pair of meshing gears are provided inside the mounting bracket. A motor is fixedly connected to the outer wall of the mounting bracket, and the output end of the motor is fixedly connected to the gears.

[0010] Optionally, a rotating rod is fixedly inserted inside the conveying cylinder. One end of the rotating rod passes through the fixed frame and is fixedly connected to the gear, while the other end of the rotating rod is rotatably connected to the inside of the fixed frame.

[0011] Optionally, the upper end of the double-ended threaded rod is provided with a limiting rod, both ends of which are fixedly connected to the inner wall of the fixed frame, and the limiting rod slides through the moving block.

[0012] Optionally, a conveying roller is rotatably connected to the other side inside the fixed frame.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0014] 1. This application utilizes a rotating rod and conveyor cylinder to cause the threaded soft rubber strips on both sides of the outer wall to rotate synchronously with opposite thread directions. When the packaging film passes through the conveyor cylinder, the threaded soft rubber strips extend the packaging film outwards on both sides through threaded thrust, effectively stretching and flattening the film material in conjunction with the film's own tension. This eliminates wrinkles and curls generated during the conveying process, ensuring a smooth and flat packaging film after winding, avoiding subsequent packaging quality problems caused by wrinkles, facilitating later positioning, and improving product aesthetics and reliability.

[0015] 2. This application utilizes a rotary knob to drive a double-threaded rod, which in turn uses the reverse threads at both ends to move two moving blocks closer together or further apart, ensuring the positioning frame precisely abuts against both sides of the packaging film. A limiting rod ensures the moving blocks move only in a straight line, achieving precise adjustment and fixation of the packaging film's position. This facilitates positioning of packaging films of different sizes while effectively correcting lateral offset during winding, ensuring the film is always neatly wound along the central axis, avoiding problems such as loose winding and uneven edges caused by offset, and improving winding quality and consistency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the packaging film winding and positioning mechanism disclosed in the embodiments of this application;

[0017] Figure 2 This is a structural unfolded view of the packaging film winding and positioning mechanism disclosed in the embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the winding and positioning assembly of the packaging film winding and positioning mechanism disclosed in the embodiments of this application;

[0019] The following are the labels in the diagram: 1. Fixed frame; 2. Rewinding and positioning assembly; 3. Mounting frame; 4. Motor; 5. Knob; 6. Gear; 201. Conveyor cylinder; 202. Threaded soft rubber strip; 203. Rotating rod; 204. Double-ended threaded rod; 205. Limiting rod; 206. Moving block; 207. Positioning frame; 208. Top rod; 209. Conveyor roller. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-3 This application provides a winding and positioning mechanism for packaging film, including a fixed frame 1, with a winding and positioning component 2 inside the fixed frame 1. A pair of conveyor cylinders 201 are provided on one side inside the fixed frame 1. Threaded soft rubber strips 202 with opposite thread directions are fixedly connected to both sides of the outer wall of the conveyor cylinders 201. Rotation of the conveyor cylinders 201 causes the threaded soft rubber strips 202 with opposite thread directions on both sides of the outer wall to rotate synchronously. When the packaging film passes through the conveyor cylinders 201, the threaded soft rubber strips 202 extend both sides of the packaging film outwards through threaded thrust, effectively stretching and flattening the film material in conjunction with the film's own tension. This eliminates wrinkles and curls generated during the conveying process, ensuring that the wound packaging film is flat and smooth, avoiding subsequent packaging quality problems caused by wrinkles, facilitating later positioning, and improving product aesthetics and reliability.

[0022] The fixed frame 1 has a double-threaded rod 204 with opposite threads at both ends rotatably connected internally. Each end of the double-threaded rod 204 has a movable block 206 rotatably connected to its outer wall via threads. A positioning frame 207 is fixedly connected to the lower end of each movable block 206. A top rod 208 is rotatably connected to the end faces of the two positioning frames 207 that are close to each other. A limiting rod 205 is provided at the upper end of the double-threaded rod 204. Both ends of the limiting rod 205 are fixedly connected to the inner wall of the fixed frame 1, and the limiting rod 205 slides through the movable block 206. A knob 5 is provided on one side of the side wall of the fixed frame 1, and one end of the knob 5 is fixedly connected to the double-threaded rod 204. Rotating the knob 5 drives the double-threaded rod 204 to rotate, using the opposite threads at both ends to move the two movable blocks 206 closer together or further apart, allowing the positioning frame 207 to precisely abut against both sides of the packaging film. The limiting rod 205 ensures that the movable blocks 206 move only in a straight line, achieving precise adjustment and fixation of the packaging film position. While facilitating the positioning of packaging films of different sizes, it can also effectively correct the lateral deviation of the packaging film during the winding process, ensuring that the film material is always neatly wound along the central axis, avoiding problems such as loose winding and uneven edges caused by deviation, and improving winding quality and consistency.

[0023] A mounting frame 3 is fixedly connected to the side wall of the fixed frame 1. Inside the mounting frame 3 is a pair of meshing gears 6. A motor 4 is fixedly connected to the outer wall of the mounting frame 3, and the output end of the motor 4 is fixedly connected to the gears 6. A rotating rod 203 is fixedly inserted inside the conveying cylinder 201. One end of the rotating rod 203 passes through the fixed frame 1 and is fixedly connected to the gears 6, while the other end of the rotating rod 203 is rotatably connected to the interior of the fixed frame 1. A conveying roller 209 is rotatably connected to the other side of the interior of the fixed frame 1. The packaging film passes through multiple conveying cylinders 201, top rods 208, and conveying rollers 209 in an S-shaped path. Utilizing the support and guiding effect of each component, a continuously taut tension system is formed. The conveying cylinders 201 provide forward traction through rotation, while the top rods 208 and conveying rollers 209 apply reverse tension through their positional arrangement, maintaining constant tension in the packaging film during flattening and positioning. Stable tension control prevents the packaging film from becoming loose and wrinkled due to insufficient tension or from tearing due to excessive tension, ensuring a smooth and reliable winding process.

[0024] Working principle: First, the packaging film is passed through the fixing frame 1. The packaging film is first placed on the upper conveyor cylinder 201, then passed in an S-shape between the two conveyor cylinders 201, then through the lower outer wall of the lower conveyor cylinder 201, then under the outer wall of the two push rods 208, and finally placed on the upper outer wall of the conveyor roller 209, and finally wound onto the winding equipment. The push rods 208 and the conveyor roller 209 serve to tighten the packaging film.

[0025] During winding, the winding equipment winds up the packaging film and simultaneously starts motor 4. Motor 4 drives the output end to rotate, which in turn drives the upper gear 6 and its meshing components to rotate synchronously. The rotation of the two gears 6 drives the two rotating rods 203 to rotate, which in turn drives the conveyor cylinder 201 on the outer wall of the two rotating rods 203 to rotate synchronously. The rotation of the conveyor cylinder 201 drives the threaded soft rubber strips 202 on both sides of its outer wall to rotate synchronously. As the packaging film passes through the conveyor cylinder 201, the two threaded soft rubber strips 202 extend the packaging film outwards twice. Combined with the tension of the packaging film, the film is flattened, preventing the packaging film from... Wrinkles appear during winding, affecting the winding effect. After the packaging film is unfolded, turn knob 5 is rotated. The rotation of knob 5 drives the double-headed threaded rod 204 to rotate. Since the threads at both ends of the double-headed threaded rod 204 are in opposite directions, under the limit of the limit rod 205, the rotation of the double-headed threaded rod 204 drives the two outer wall moving blocks 206 to move closer to each other until the positioning frame 207 on the two moving blocks 206 abuts against both sides of the packaging film, fixing the position of the packaging film and preventing the packaging film from deviating in direction, thereby achieving a good positioning effect and making the packaging film winding more neat. After positioning, the packaging film passes through the top rod 208 and the conveyor roller 209, and is finally wound up by the winding equipment.

[0026] 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 winding and positioning mechanism for packaging film, comprising a fixing frame (1), characterized in that: The fixed frame (1) is equipped with a winding and positioning component (2) inside; A pair of conveying cylinders (201) are provided on one side inside the fixed frame (1). Threaded soft rubber strips (202) with opposite thread directions are fixedly connected to both sides of the outer wall of the conveying cylinders (201). Double-headed threaded rods (204) with opposite thread directions at both ends are rotatably connected inside the fixed frame (1). Moving blocks (206) are rotatably connected to the outer walls of both ends of the double-headed threaded rods (204) through threads. Positioning frames (207) are fixedly connected to the lower end face of the moving blocks (206). Top rods (208) are rotatably connected to the end faces of the two positioning frames (207) that are close to each other.

2. The winding and positioning mechanism for packaging film according to claim 1, characterized in that: A knob (5) is provided on one side of the side wall of the fixing frame (1), and one end of the knob (5) is fixedly connected to the double-ended threaded rod (204).

3. The winding and positioning mechanism for packaging film according to claim 1, characterized in that: The side wall of the fixed frame (1) is fixedly connected to the mounting frame (3), and the inside of the mounting frame (3) is provided with a pair of meshing gears (6). The outer wall of the mounting frame (3) is fixedly connected to the motor (4), and the output end of the motor (4) is fixedly connected to the gears (6).

4. The winding and positioning mechanism for packaging film according to claim 3, characterized in that: A rotating rod (203) is fixedly inserted inside the conveying cylinder (201). One end of the rotating rod (203) passes through the fixed frame (1) and is fixedly connected to the gear (6), and the other end of the rotating rod (203) is rotatably connected to the inside of the fixed frame (1).

5. The winding and positioning mechanism for packaging film according to claim 1, characterized in that: The upper end of the double-ended threaded rod (204) is provided with a limiting rod (205), both ends of which are fixedly connected to the inner wall of the fixed frame (1), and the limiting rod (205) slides through the moving block (206).

6. The winding and positioning mechanism for packaging film according to claim 1, characterized in that: A conveying roller (209) is rotatably connected to the other side of the inside of the fixed frame (1).

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