Automatic film wrapping device for multi-layered parts packaging boxes
By designing an automatic wrapping device, the coordinated movement of the lifting frame and the rotating tray enables the automatic wrapping process of multi-layer parts packaging boxes, solving the problems of low efficiency and unstable quality of manual operation, and improving the wrapping quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI XINYEGANG STEEL AUTO PARTS
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, the wrapping process of multi-layer parts packaging boxes relies on manual operation, which is inefficient and results in inconsistent quality.
An automatic film wrapping device including a lifting mechanism and a rotating mechanism was designed. The device utilizes a lifting frame, an unwinding mechanism, and a rotating tray, and is driven by a motor to achieve automatic film winding and wrapping. The combination of the movement of the lifting frame and the rotation of the rotating tray ensures that the film is tightly wrapped around the surface of the packaging box.
It enables automated wrapping of multi-layer parts packaging boxes, reducing manual labor intensity, improving work efficiency, and ensuring the stability and tightness of the wrapping quality.
Smart Images

Figure CN224335894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, specifically to an automatic wrapping device for multi-layer parts packaging boxes. Background Technology
[0002] Some automotive axle parts require Company A to process the first few steps before being transported to Company B for the subsequent steps. Therefore, after Company A completes the processing, it needs to package the semi-finished parts before transporting them to Company B. To save on packaging costs, reusable packaging boxes are generally used to pack the workpieces. After packing, multiple layers are stacked, and then a forklift is used to place them onto a truck for transportation. To prevent the stacked packaging boxes from tipping over during transportation, multiple layers of plastic wrap are wrapped around the outside of the packaging boxes to stabilize them. Currently, this is generally done manually by holding the film roll and wrapping it around the packaging box, which is inefficient and results in inconsistent wrapping quality. Summary of the Invention
[0003] The main purpose of this utility model is to solve the problems existing in the prior art and provide an automatic wrapping device for multi-layer parts packaging boxes.
[0004] The specific solution of this utility model is: an automatic wrapping device for multi-layer parts packaging boxes, including a lifting mechanism and a rotating mechanism. The lifting mechanism is equipped with a lifting frame, and the lifting frame is equipped with a support rod for installing the film roll and an unwinding mechanism. The lifting mechanism includes a column, and a lifting drive mechanism is installed inside the column. The lifting drive mechanism is connected to the lifting frame. The rotating mechanism includes a rotating tray, which is used to place the packaging box. A rotating drive mechanism is provided at the bottom of the rotating tray.
[0005] Furthermore, the lifting drive mechanism includes two sprockets, which are respectively located at the upper and lower ends of the column. One of the sprockets is connected to a motor A, and a chain is wound between the two sprockets. A slot is provided on one side of the column in a vertical direction, and the lifting frame passes through the slot and is fixedly connected to the chain.
[0006] Furthermore, the unwinding mechanism includes at least two guide rollers arranged vertically, with both ends of the guide rollers rotatably connected to the lifting frame. The unwound film roll passes around each guide roller in sequence and then wraps around the outer periphery of the packaging box. The last guide roller is connected to a motor B.
[0007] Furthermore, the surface of the guide roller is provided with anti-slip rubber.
[0008] Furthermore, the rotary drive mechanism includes a motor C, the output end of which is equipped with a drive wheel, a support column is provided at the center of the bottom of the rotary tray, a transmission wheel is mounted on the support column, and a synchronous belt is installed between the drive wheel and the transmission wheel.
[0009] Compared with the prior art, this utility model has the following advantages: it realizes the automatic wrapping operation of multi-layer parts packaging boxes, reduces the intensity of manual labor, improves work efficiency, and makes the wrapping quality more stable. Attached Figure Description
[0010] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0011] Figure 2 yes Figure 1 Top view;
[0012] Figure 3 yes Figure 2 AA view;
[0013] Figure 4 This is the front view of this utility model;
[0014] Figure 5 yes Figure 4 BB view;
[0015] In the diagram: 1. Column; 2. Lifting frame; 3. Motor A; 4. Motor C; 5. Drive wheel; 6. Rotating tray; 7. Packaging box; 8. Support column; 9. Motor B; 10. Guide roller; 11. Sprocket; 12. Chain; 13. Support rod; 14. Film roll. Detailed Implementation
[0016] See Figure 1-5 This embodiment is an automatic wrapping device for multi-layer parts packaging boxes 7, including a lifting mechanism and a rotating mechanism. The lifting mechanism is equipped with a lifting frame 2, and the lifting frame 2 is equipped with a support rod 13 for mounting the film roll 14 and an unwinding mechanism. The lifting mechanism includes a column 1, and a lifting drive mechanism is installed inside the column 1. The lifting drive mechanism is connected to the lifting frame 2. The rotating mechanism includes a rotating tray 6, which is used to place the packaging box 7. The bottom of the rotating tray 6 is provided with a rotating drive mechanism.
[0017] Furthermore, the lifting drive mechanism includes two sprockets 11, which are respectively located at the upper and lower ends of the column 1. One of the sprockets 11 is connected to a motor A3, and a chain 12 is wound between the two sprockets 11. A slot is provided on one side of the column 1 in a vertical direction, and the lifting frame 2 passes through the slot and is fixedly connected to the chain 12.
[0018] Furthermore, the unwinding mechanism includes at least two guide rollers 10, which are arranged vertically. The two ends of the guide rollers 10 are rotatably connected to the lifting frame 2. The unwound film of the film roll 14 passes around each guide roller 10 in sequence and then wraps around the outer periphery of the packaging box 7. The last guide roller 10 is connected to a motor B9.
[0019] Furthermore, the surface of the guide roller 10 is provided with anti-slip rubber.
[0020] Furthermore, the rotary drive mechanism includes a motor C4, with a drive wheel 5 mounted on the output end of the motor C4. A support column 8 is located at the center of the bottom of the rotary tray 6, and a transmission wheel is mounted on the support column 8. A synchronous belt is installed between the drive wheel 5 and the transmission wheel. The working principle of this utility model is as follows: Packaging boxes 7 with parts are stacked layer by layer on the rotary tray 6. During stacking, the packaging boxes 7 are arranged as neatly as possible. Then, the film roll 14 is placed on the support rod 13. The lifting frame 2 starts at the bottom. First, the film roll 14 is manually unrolled to a certain length and then wrapped around the guide rollers 10 in sequence before being wrapped around the outer periphery of the packaging box 7 to fix the film on the packaging box 7. Then, the operator leaves the rotary tray 6 and starts the system. The motor C4 drives the rotary tray 6 to rotate at a linear speed v1, thereby driving the packaging box 7 to rotate together. At the same time, the motor B9 drives the last guide roller 10 at a linear speed v2. v2 is slightly less than v1, so the unwinding speed is slightly less than the wrapping speed of the packaging box 7. Therefore, the last guide roller 10... The film between 0 and the packaging box 7 is subjected to a certain tension, which makes the plastic film taut and slightly deformed, thus making the film wrapped around the surface of the packaging box 7 more tightly and providing sufficient support for the multi-layer packaging box 7. During the wrapping process, motor A3 also drives the lifting frame 2 to move upward at a certain speed. The speed of the lifting frame 2 is related to the width of the film, so that the film is wrapped on the surface of the packaging box 7 in a partially overlapping manner. When the lifting frame 2 moves to the highest point of the packaging box 7, one round of wrapping is automatically completed. At this time, motor A3 drives the lifting frame 2 to move downward at the same speed in the opposite direction, while motors B9 and C4 continue to maintain the original speed. When the lifting frame 2 moves to the lowest point, the second round of wrapping is automatically completed. After repeating this lifting and lowering multiple times, the multi-layer wrapping operation is automatically completed.
[0021] After the multi-layer wrapping is completed, all motors in the system stop. Then, the last section of film is manually cut and attached to the packaging box 7. This demonstrates that the present invention achieves automated wrapping, resulting in a more even and tighter wrapping compared to manual operation.
[0022] It also improved work efficiency and reduced the intensity of manual labor.
Claims
1. An automatic wrapping device for multi-layer parts packaging boxes, characterized in that: It includes a lifting mechanism and a rotating mechanism. The lifting mechanism is equipped with a lifting frame, and the lifting frame is equipped with a support rod for installing the film roll and an unwinding mechanism. The lifting mechanism includes a column, and the column is equipped with a lifting drive mechanism, which is connected to the lifting frame. The rotating mechanism includes a rotating tray, which is used to place packaging boxes. The bottom of the rotating tray is equipped with a rotating drive mechanism.
2. The automatic wrapping device for multi-layer parts packaging boxes according to claim 1, characterized in that: The lifting drive mechanism includes two sprockets, which are respectively located at the upper and lower ends of the column. One of the sprockets is connected to a motor A, and a chain is wound between the two sprockets. A slot is provided on one side of the column in a vertical direction, and the lifting frame passes through the slot and is fixedly connected to the chain.
3. The automatic wrapping device for multi-layer parts packaging boxes according to claim 1, characterized in that: The unwinding mechanism includes at least two guide rollers arranged vertically. The two ends of the guide rollers are rotatably connected to the lifting frame. The unwound film roll passes around each guide roller in sequence and then wraps around the outer circumference of the packaging box. The last guide roller is connected to a motor B.
4. The automatic wrapping device for multi-layer parts packaging boxes according to claim 3, characterized in that: The guide roller surface is provided with anti-slip rubber.
5. The automatic wrapping device for multi-layer parts packaging boxes according to claim 1, characterized in that: The rotary drive mechanism includes a motor C, the output end of which is equipped with a drive wheel. A support column is provided at the center of the bottom of the rotating tray, and a transmission wheel is mounted on the support column. A synchronous belt is installed between the drive wheel and the transmission wheel.