Woven bag opening rolling machine

By using multiple electric telescopic rods and a vacuum machine in synergy, the opening of the woven bag is fully folded into the inside of the fixed sleeve, solving the problem that the woven bag folding machine cannot fold the edges from all directions, and achieving a better folding effect.

CN224266132UActive Publication Date: 2026-05-22MIANYANG XINRUI PLASTIC PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-05-22

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Abstract

The utility model relates to a woven bag opening machine, which belongs to the technical field of woven bag processing, and comprises a mounting rack, a woven bag opening structure is arranged on the mounting rack, and the woven bag opening structure comprises two first electric telescopic rods and two fixed rods which are fixedly mounted on the surface of the mounting rack; a telescopic sleeve is fixedly installed at the output end of the first electric telescopic rod, and an arc-shaped ring and a second electric telescopic rod are fixedly installed in the telescopic sleeve. According to the woven bag opening rolling machine, a first electric telescopic rod drives a telescopic sleeve to move, so that an opening of a woven bag inclines towards the inner side of a fixed sleeve, and in combination with the synergistic effect of a second electric telescopic rod and a third electric telescopic rod, an arc-shaped plate and an inclined pressing plate can make contact with the bag opening of the woven bag in all directions and bend the bag opening of the woven bag towards the inner side of the fixed sleeve; the woven bag opening is in contact with the inner side surface of the fixing sleeve, comprehensive edge folding of the woven bag is achieved, edge folding dead angles are effectively eliminated, and the opening circling effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of woven bag processing technology, specifically a woven bag sealing machine. Background Technology

[0002] A woven bag folding machine is a piece of equipment used in the processing of woven bags. It is mainly used to solve the problem of uneven bag openings after folding, and to improve the flatness of the bag openings.

[0003] Existing woven bag sealing machines simply fold the opening of the woven bag using a folding edge piece before ironing it closed. However, the folding edge piece can only fold the top and bottom edges into the woven bag, and the diagonal edges on both sides of the woven bag are not easy to fold in, resulting in dead corners and poor sealing effect. Therefore, a woven bag sealing machine is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a woven bag sealing machine that has the advantage of good sealing effect. It solves the problem that existing sealing machines can only fold the top and bottom edges into the woven bag, and the diagonal edges on both sides of the woven bag are not easy to fold into the woven bag, resulting in dead corners that affect the sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a woven bag sealing machine, including a mounting frame, wherein the mounting frame is provided with a woven bag sealing structure;

[0006] The woven bag opening structure includes two first electric telescopic rods and two fixed rods, each fixedly installed on the surface of the mounting frame. A shrink sleeve is fixedly installed at the output end of the first electric telescopic rod. An arc-shaped ring and a second electric telescopic rod are fixedly installed inside the shrink sleeve. A connecting plate is fixedly installed at the output end of the second electric telescopic rod. A third electric telescopic rod is fixedly installed on the side surface of the connecting plate. An arc plate is fixedly installed at the output end of the third electric telescopic rod. An inclined pressure plate is fixedly installed at the bottom of the arc plate. A guide sleeve is fixedly installed at the bottom of the fixed rod. A fixed sleeve is fixedly installed at the top of the guide sleeve. A woven bag fixing component is provided on the fixed sleeve.

[0007] Furthermore, the surface of the connecting plate has two circular holes, and the fixing rod is located inside the circular holes and slides in contact with the circular holes.

[0008] Furthermore, the bottom of the fixing rod is fixedly connected to the bottom of the inner cavity of the guide sleeve, and the connection point between the fixing rod and the guide sleeve is near the center of the bottom of the inner cavity of the guide sleeve.

[0009] Furthermore, the top diameter of the shrink sleeve is smaller than the bottom diameter of the shrink sleeve, the top diameter of the guide sleeve is larger than the bottom diameter of the guide sleeve, and the top diameter of the guide sleeve is the same as the diameter of the fixed sleeve.

[0010] Furthermore, the woven bag fixing assembly includes a vacuum machine fixedly installed on the inner surface of the fixing sleeve, and the outer surface of the fixing sleeve is provided with an adsorption hole connected to the vacuum machine.

[0011] Furthermore, there are multiple adsorption holes, which are evenly distributed on the surface of the fixed sleeve.

[0012] Furthermore, the curvature of the arc-shaped plate surface is the same as the curvature of the inner surface of the fixed sleeve, and the inclination direction of the inclined pressure plate faces the inner side of the fixed sleeve.

[0013] Furthermore, there are multiple third electric telescopic rods, and the spacing between any two adjacent third electric telescopic rods is equal. The number of arc-shaped plates and inclined pressure plates is the same as the number of third electric telescopic rods.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This woven bag folding machine uses a first electric telescopic rod to drive the shrinking sleeve, causing the opening of the woven bag to tilt inward toward the fixed sleeve. Combined with the synergistic action of the second and third electric telescopic rods, the arc plate and the inclined pressure plate can make full contact with the woven bag opening and bend the woven bag opening toward the fixed sleeve, so that the woven bag opening contacts the inner surface of the fixed sleeve, achieving full edge folding of the woven bag, effectively eliminating dead corners in the folding process, and improving the folding effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the shrink sleeve and the fixed sleeve of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model.

[0019] In the diagram: 1. Mounting bracket; 2. First electric telescopic rod; 3. Fixed rod; 4. Retractable sleeve; 5. Arc-shaped ring; 6. Second electric telescopic rod; 7. Connecting plate; 8. Third electric telescopic rod; 9. Arc-shaped plate; 10. Angled pressure plate; 11. Guide sleeve; 12. Fixed sleeve; 13. Round hole; 14. Vacuum machine; 15. Adsorption round hole. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 3 This embodiment of a woven bag sealing machine includes a mounting frame 1. The mounting frame 1 is provided with a woven bag sealing structure. The woven bag sealing structure includes two first electric telescopic rods 2 and two fixed rods 3, which are fixedly installed on the surface of the mounting frame 1. A shrink sleeve 4 is fixedly installed at the output end of the first electric telescopic rod 2. An arc-shaped ring 5 and a second electric telescopic rod 6 are fixedly installed inside the shrink sleeve 4. A connecting plate 7 is fixedly installed at the output end of the second electric telescopic rod 6. A third electric telescopic rod 8 is fixedly installed on the side surface of the connecting plate 7. An arc-shaped plate 9 is fixedly installed at the output end of the third electric telescopic rod 8. An inclined pressure plate 10 is fixedly installed at the bottom of the arc-shaped plate 9. A guide sleeve 11 is fixedly installed at the bottom of the fixed rod 3. A fixed sleeve 12 is fixedly installed at the top of the guide sleeve 11.

[0022] It should be noted that the connecting plate 7 has two circular holes 13 on its surface. The fixing rod 3 is located inside the circular holes 13 and slides in contact with the circular holes 13, which facilitates the movement of the connecting plate 7 on the fixing rod 3.

[0023] The bottom of the fixing rod 3 is fixedly connected to the bottom of the inner cavity of the guide sleeve 11. The connection between the fixing rod 3 and the guide sleeve 11 is near the center of the bottom of the inner cavity of the guide sleeve 11. The top diameter of the shrink sleeve 4 is smaller than the bottom diameter of the shrink sleeve 4. The top diameter of the guide sleeve 11 is larger than the bottom diameter of the guide sleeve 11. The top diameter of the guide sleeve 11 is the same as the diameter of the fixing sleeve 12, which makes it easy to put the woven bag on the fixing sleeve 12. The shrink sleeve 4 makes it easy to compress and shrink the bag opening towards the inside of the fixing sleeve 12.

[0024] The fixed sleeve 12 is provided with a woven bag fixing assembly, which includes a vacuum machine 14 fixedly installed on the inner surface of the fixed sleeve 12. The outer surface of the fixed sleeve 12 is provided with adsorption holes 15 that are connected to the vacuum machine 14. There are multiple adsorption holes 15, which are evenly distributed on the surface of the fixed sleeve 12.

[0025] It should be noted that the curvature of the surface of the arc plate 9 is the same as the curvature of the inner surface of the fixed sleeve 12, the inclination direction of the inclined pressure plate 10 is towards the inner side of the fixed sleeve 12, there are multiple third electric telescopic rods 8, the spacing between two adjacent third electric telescopic rods 8 is equal, and the number of arc plates 9 and inclined pressure plates 10 is the same as the number of third electric telescopic rods 8.

[0026] The working principle of the above embodiments is as follows:

[0027] The woven bag is fitted onto the fixed sleeve 12 via the guide sleeve 11. At this time, the vacuum machine 14 is activated, and the woven bag is firmly adsorbed onto the surface of the fixed sleeve 12 through the suction hole 15. The first electric telescopic rod 2 begins to extend, pushing the shrinking sleeve 4 downward. Because the top diameter of the shrinking sleeve 4 is smaller than the bottom diameter and has an arc-shaped ring 5 inside, the shrinking sleeve 4 can gradually tighten the opening of the woven bag during its downward movement, providing initial positioning for the subsequent hemming operation. The second electric telescopic rod 6 starts to work, pushing the connecting plate 7 along the fixed sleeve 12. The fixed rod 3 slides up and down, simultaneously pushing the arc plate 9 and the inclined pressure plate 10 towards the inside of the fixed sleeve 12, so that the arc plate 9 and the inclined pressure plate 10 can fit tightly against the opening of the woven bag and fold the opening of the woven bag into the inside of the inner fixed sleeve 12. The third electric telescopic rod 8 drives the arc plate 9 to move and apply pressure to the woven bag opening folded into the inside of the inner fixed sleeve 12 to achieve the shaping of the woven bag opening. After the woven bag opening is folded, other equipment can be used to fix and heat-press the woven bag to complete the entire folding process.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A woven bag sealing machine, comprising a mounting frame, characterized in that: The mounting frame is equipped with a woven bag opening structure; The woven bag opening structure includes two first electric telescopic rods and two fixed rods, each fixedly installed on the surface of the mounting frame. A shrink sleeve is fixedly installed at the output end of the first electric telescopic rod. An arc-shaped ring and a second electric telescopic rod are fixedly installed inside the shrink sleeve. A connecting plate is fixedly installed at the output end of the second electric telescopic rod. A third electric telescopic rod is fixedly installed on the side surface of the connecting plate. An arc plate is fixedly installed at the output end of the third electric telescopic rod. An inclined pressure plate is fixedly installed at the bottom of the arc plate. A guide sleeve is fixedly installed at the bottom of the fixed rod. A fixed sleeve is fixedly installed at the top of the guide sleeve. A woven bag fixing component is provided on the fixed sleeve.

2. The woven bag sealing machine according to claim 1, characterized in that: The connecting plate has two circular holes on its surface, and the fixing rod is located inside the circular holes and slides in contact with them.

3. The woven bag sealing machine according to claim 1, characterized in that: The bottom of the fixing rod is fixedly connected to the bottom of the inner cavity of the guide sleeve, and the connection between the fixing rod and the guide sleeve is near the center of the bottom of the inner cavity of the guide sleeve.

4. The woven bag sealing machine according to claim 1, characterized in that: The top diameter of the shrink sleeve is smaller than the bottom diameter of the shrink sleeve, the top diameter of the guide sleeve is larger than the bottom diameter of the guide sleeve, and the top diameter of the guide sleeve is the same as the diameter of the fixed sleeve.

5. A woven bag sealing machine according to claim 1, characterized in that: The woven bag fixing assembly includes a vacuum machine fixedly installed on the inner surface of the fixing sleeve, and the outer surface of the fixing sleeve has an adsorption hole connected to the vacuum machine.

6. A woven bag sealing machine according to claim 5, characterized in that: The number of adsorption holes is multiple, and the multiple adsorption holes are evenly distributed on the surface of the fixed sleeve.

7. A woven bag sealing machine according to claim 1, characterized in that: The curvature of the arc-shaped plate surface is the same as the curvature of the inner surface of the fixed sleeve, and the inclined direction of the inclined pressure plate faces the inner side of the fixed sleeve.

8. A woven bag sealing machine according to claim 1, characterized in that: The number of the third electric telescopic rods is multiple, and the spacing between any two adjacent third electric telescopic rods is equal. The number of the arc-shaped plate and the inclined pressure plate is the same as the number of the third electric telescopic rods.