A plastic woven bag rolling and packaging device with tension adjustment

By setting a tension adjustment mechanism on the plastic woven bag winding device, the problem of difficulty in adjusting tension during packaging is solved, achieving a fast and time-saving packaging effect.

CN224941503UActive Publication Date: 2026-11-06ZHENGZHOU HENGCHENG PLASTIC IND CO LTD
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Patent Information

Application Number
CN202522492795.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-11-06
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

Existing plastic woven bag winding devices are difficult to adjust the tension quickly during packaging, resulting in time-consuming and labor-intensive packaging.

Method used

The tension adjustment mechanism allows for the rapid expansion and rewinding of the packaging bag by adjusting the distance between the sliding sleeve and the tension frame through the gripping column and the limiting strip.

Benefits of technology

It enables rapid and time-saving packaging of plastic woven bags, improving packaging efficiency and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a plastic woven bag winding and packaging device with tension adjustment, specifically relating to the field of packaging technology. It includes a positioning cylinder, with a support strip fixed to its outer wall. A guide post is fixed to the upper surface of the support strip, and a tension adjustment mechanism is provided on the outer wall of the guide post. The tension adjustment mechanism includes a sleeve slidably connected to the outer wall of the guide post, with a linkage frame fixed to one end of the sleeve. This utility model uses a tension adjustment mechanism to guide the packaging bag onto the outer wall of the guide strip and onto the outer walls of two tension frames. By holding the two gripping posts with both hands, the distance between the two gripping posts increases. The two sleeves then increase the distance between the two tension frames, causing the packaging bag to open and package the plastic woven bag. The adjustable operation makes packaging more time-saving, labor-saving, and faster.
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Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and more specifically, to a plastic woven bag winding and packaging device with tension adjustment. Background Technology

[0002] Tension-adjustable plastic woven bag winding and packaging equipment improves winding quality, ensures equipment stability, increases production efficiency, and reduces losses. Furthermore, the packaging tension of the plastic woven bag must remain stable during the winding process.

[0003] Among the existing published documents, patent publication number CN209442347U discloses a plastic packaging woven bag winding device. This technology can tighten the plastic packaging woven bag during the winding process, avoiding the problem of the plastic packaging woven bag piling up due to wrinkles, and making the plastic packaging woven bags tightly compressed, thereby improving the winding effect of the winding device. However, this patent has the following problems.

[0004] During the rolling and packaging process of plastic woven bags, the packaging bag needs to be fitted onto the packaged body after the plastic woven bag has been rolled up. However, it is difficult to quickly adjust the packaging according to the tension gap during packaging, which makes the rolling and packaging of plastic woven bags more time-consuming and labor-intensive. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides the following technical solution: a plastic woven bag winding and packaging device with tension adjustment, comprising a positioning cylinder, a support strip fixed to the outer wall of the positioning cylinder, a guide post fixed to the upper surface of the support strip, and a tension adjustment mechanism provided on the outer wall of the guide post, the tension adjustment mechanism comprising:

[0006] A sleeve is slidably connected to the outer wall of the guide post, and a linkage frame is fixed at one end of the sleeve.

[0007] Multiple sliding sleeves slide on the inner wall of the linkage frame. A tension frame is fixed to the top of each sliding sleeve, and a gripping post is fixed to one side of each sliding sleeve. A limit strip is connected to one end of the gripping post, and the hand is used to grip the outer wall of the gripping post and the limit strip.

[0008] A spring clip is fixed to the upper surface of the limiting strip, and the spring clip is used to provide elastic force between the two limiting strips.

[0009] In a preferred embodiment, a gap is provided between two adjacent sliding sleeves, and two adjacent tension frames are fitted together.

[0010] In a preferred embodiment, the limiting strip has an L-shaped cross-section, and the upper surface of the sleeve is arranged parallel to the upper surface of the limiting strip.

[0011] In a preferred embodiment, each tension frame is connected to a guide strip at its top, the guide strip being used to guide the packaging bag.

[0012] In a preferred embodiment, a guide rod is installed on one side of the inner wall of the linkage frame, and the guide rod is used to guide the two sliding sleeves to slide.

[0013] In a preferred embodiment, an mounting ring is fixed to the outer wall of the positioning cylinder at a position adjacent to the support bar.

[0014] In a preferred embodiment, a limiting post is installed at the bottom end of the tension frame, and a limiting ring is sleeved on the limiting post. Both the limiting ring and the tension frame are fixedly connected to the limiting post.

[0015] The bottom end of the limiting ring is fixed with a limiting block, and the limiting block is slidably connected to the positioning cylinder.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model adopts a tension adjustment mechanism. The packaging bag is sleeved on the outer wall of the guide strip and guided to the outer walls of the two tension frames. By holding the outer walls of the two holding posts and the two limiting strips with both hands respectively, the distance between the two holding posts increases. The two sliding sleeves drive the distance between the two tension frames to increase. The holding posts drive the sliding sleeves to move down, and the linkage frame drives the sleeve to move down. The sliding sleeves drive the tension frames to open the packaging bag to the outside of the plastic woven bag roll. The adjustable operation enables rapid expansion packaging of the plastic woven bag roll, making packaging more time-saving, labor-saving, and faster.

[0018] 2. When the distance between the two guide bars is not expanded or increased, the positioning cylinder supports the limiting block, the limiting ring supports the limiting column, and the limiting column supports the tension frame. When the distance between the two tension frames increases, the limiting column drives the limiting ring to move to the right, and the limiting block moves to the right along the top of the positioning cylinder, ensuring that the tension frame moves down. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the tension-adjustable plastic woven bag winding and packaging device of this utility model.

[0020] Figure 2 This is a partial structural diagram of the connection between the guide post and the sleeve of this utility model.

[0021] Figure 3 This is a partial structural diagram of the connection between the support bar and the positioning cylinder of this utility model.

[0022] Figure 4This is a partial structural diagram of the connection between the tension frame and the limiting post of this utility model.

[0023] The attached diagram is labeled as follows: 1. Positioning cylinder; 2. Support bar; 3. Guide post; 4. Sleeve; 5. Linkage frame; 6. Sliding sleeve; 7. Tension frame; 8. Guide bar; 9. Spring piece; 10. Holding post; 11. Limiting bar; 12. Guide rod; 13. Mounting ring; 14. Limiting post; 15. Limiting ring; 16. Limiting block. Detailed Implementation

[0024] 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.

[0025] like Figures 1-4 The diagram shows a tension-adjustable plastic woven bag winding and packaging device. This device is equipped with a tension adjustment mechanism, which allows the packaging bag to be opened and packaged outside the plastic woven bag winding. The adjustable operation enables rapid expansion and packaging of the plastic woven bag winding, making packaging more time-saving, labor-saving, and faster. The specific structure of the tension adjustment mechanism is as follows.

[0026] In this technical solution, such as Figures 1-3 As shown, it includes a positioning cylinder 1, a support bar 2 fixed to the outer wall of the positioning cylinder 1, a guide post 3 fixed to the upper surface of the support bar 2, and a tension adjustment mechanism provided on the outer wall of the guide post 3. The tension adjustment mechanism includes a sleeve 4, which is slidably connected to the outer wall of the guide post 3, and a linkage frame 5 fixed to one end of the sleeve 4.

[0027] Multiple sliding sleeves 6 slide on the inner wall of the linkage frame 5. A tension frame 7 is fixed to the top of each sliding sleeve 6, and a gripping post 10 is fixed to one side of each sliding sleeve 6. One end of the gripping post 10 is connected to a limiting strip 11, and the hand is used to grip the outer wall of the gripping post 10 and the limiting strip 11. A spring piece 9 is fixed to the upper surface of the limiting strip 11, and the spring piece 9 provides elasticity between the two limiting strips 11. There is a gap between adjacent sliding sleeves 6, and adjacent tension frames 7 are in contact with each other. The limiting strip 11 has an L-shaped cross-section, and the upper surface of the sleeve 4 is parallel to the upper surface of the limiting strip 11.

[0028] In this technical solution, such as Figure 2As shown, each tension frame 7 has a guide strip 8 connected to its top. The guide strip 8 is used to guide the packaging bag. The packaging bag is fitted onto the outer wall of the guide strip 8 and guided onto the outer wall of the two tension frames 7 to achieve the guiding operation.

[0029] In this technical solution, such as Figure 2 As shown, a guide rod 12 is installed on one side of the inner wall of the linkage frame 5. The guide rod 12 is used to guide the two sliding sleeves 6 to slide. The guide rod 12 ensures the stable sliding of the two sliding sleeves 6 and improves the stability of the sliding sleeves 6 during sliding.

[0030] In this technical solution, such as Figure 3 As shown, a mounting ring 13 is fixed to the outer wall of the positioning cylinder 1 at a position adjacent to the support bar 2. The mounting ring 13 provides firm support to the positioning cylinder 1 by inserting bolts into the holes inside the mounting ring 13.

[0031] In use, the tension-adjustable plastic woven bag winding and packaging device is fixed by inserting bolts into the holes inside the mounting ring 13. The mounting ring 13 supports the positioning cylinder 1, the positioning cylinder 1 supports the support bar 2, and the support bar 2 supports the guide post 3. The plastic woven bag is then wound up and placed into the hole inside the positioning cylinder 1, with the top of the wound plastic woven bag exceeding the height of the positioning cylinder 1. The packaging bag is then fitted onto the outer wall of the guide bar 8 and guided to the outer walls of the two tension frames 7. By holding the outer walls of the two gripping posts 10 and the two limiting bars 11 with both hands, the distance between the two gripping posts 10 increases. The two gripping posts 10 cause the distance between the two sliding sleeves 6 to increase. At the same time, the two sliding sleeves 6 slide along the inner wall of the linkage frame 5 and are guided along the outer wall of the guide rod 12, further increasing the distance between the two tension frames 7. The two tension frames 7 cause the packaging bag to become more tensile, and the tension frames 7 cause the limiting post 14 to move the limiting ring 15 to the right.

[0032] The limiting ring 15 drives the limiting block 16 to move to the right, and the limiting block 16 no longer contacts the upper surface of the positioning cylinder 1. Thus, the limiting block 16 no longer limits the upper surface of the positioning cylinder 1. The two gripping posts 10 respectively drive the distance between the two limiting strips 11 to increase. The two limiting strips 11 drive the spring 9 to open. The spring 9 provides elastic force to the two limiting strips 11. Then, the gripping post 10 is pressed down, and the gripping post 10 drives the sliding sleeve 6 to move down. The sliding sleeve 6 drives the linkage frame 5 to move down. The linkage frame 5 drives the sleeve 4 to move down. The sleeve 4 is guided down along the outer wall of the guide post 3. In this way, the sliding sleeve 6 drives the tension frame 7 to open the packaging bag outside the plastic woven bag roll for packaging.

[0033] In this technical solution, such as Figure 4As shown, a limiting post 14 is installed at the bottom of the tension frame 7, and a limiting ring 15 is sleeved on the limiting post 14. Both the limiting ring 15 and the tension frame 7 are fixedly connected to the limiting post 14. A limiting block 16 is fixed at the bottom of the limiting ring 15, and the limiting block 16 is slidably connected to the positioning cylinder 1.

[0034] When the tension-adjustable plastic woven bag winding and packaging device of this technology is in use, if the distance between the two guide bars 8 has not been expanded, the positioning cylinder 1 supports the limiting block 16, the limiting block 16 supports the limiting ring 15, the limiting ring 15 supports the limiting post 14, and the limiting post 14 supports the tension frame 7. When the distance between the two tension frames 7 increases, the tension frame 7 drives the limiting post 14 to move to the right, the limiting post 14 drives the limiting ring 15 to move to the right, the limiting ring 15 drives the limiting block 16 to move to the right, and the limiting block 16 moves to the right along the top of the positioning cylinder 1, and the limiting block 16 no longer contacts the top of the positioning cylinder 1.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic woven bag winding and packaging device with tension adjustment, comprising a positioning cylinder (1), wherein a support strip (2) is fixed to the outer wall of the positioning cylinder (1), and a guide post (3) is fixed to the upper surface of the support strip (2), characterized in that: The outer wall of the guide post (3) is provided with a tension adjustment mechanism, the tension adjustment mechanism comprising: The sleeve (4) is slidably connected to the outer wall of the guide post (3), and a linkage frame (5) is fixed at one end of the sleeve (4). Multiple sliding sleeves (6) slide on the inner wall of the linkage frame (5). Each sliding sleeve (6) has a tension frame (7) fixed at its top end. Each sliding sleeve (6) has a gripping post (10) fixed on one side. One end of the gripping post (10) is connected to a limiting strip (11). The hand is used to grip the outer wall of the gripping post (10) and the limiting strip (11). A spring (9) is fixed to the upper surface of a limiting strip (11), the spring (9) being used to provide elastic force between the two limiting strips (11).

2. The plastic woven bag winding and packaging device with tension adjustment according to claim 1, characterized in that: There is a gap between two adjacent sliding sleeves (6), and two adjacent tension frames (7) are fitted together.

3. The plastic woven bag winding and packaging device with tension adjustment according to claim 1, characterized in that: The cross-sectional shape of the limiting strip (11) is L-shaped, and the upper surface of the sleeve (4) is arranged parallel to the upper surface of the limiting strip (11).

4. The plastic woven bag winding and packaging device with tension adjustment according to claim 1, characterized in that: Each tension frame (7) is connected to a guide strip (8) at its top, the guide strip (8) being used to guide the packaging bag.

5. A plastic woven bag winding and packaging device with tension adjustment according to claim 1, characterized in that: A guide rod (12) is installed on one side of the inner wall of the linkage frame (5), and the guide rod (12) is used to guide the two sliding sleeves (6) to slide.

6. The plastic woven bag winding and packaging device with tension adjustment according to claim 1, characterized in that: An installation ring (13) is fixed on the outer wall of the positioning cylinder (1) at a position adjacent to the support (2).

7. A plastic woven bag winding and packaging device with tension adjustment according to claim 1, characterized in that: A limiting post (14) is installed at the bottom of the tension frame (7), and a limiting ring (15) is sleeved on the limiting post (14). The limiting ring (15) and the tension frame (7) are both fixedly connected to the limiting post (14). The bottom end of the limiting ring (15) is fixed with a limiting block (16), and the limiting block (16) is slidably connected to the positioning cylinder (1).

Citation Information

Patent Citations

  • Plastic packaging woven bag winding device

    CN209442347U