Uniform drafting forming device for non-woven fabric packaging bag

By using a uniform stretching forming device for nonwoven packaging bags, and through the cooperation of gear transmission components and positive and negative stretching frames, uniform stretching of nonwoven fabric is achieved, solving the problem of low efficiency of manual stretching and improving weaving quality and clamping effect.

CN223890570UActive Publication Date: 2026-02-10ANHUI FOUNTAIN PACKAGING CO LTD
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Patent Information

Application Number
CN202520399177.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-10
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

The existing nonwoven packaging bags are produced by manual stretching before weaving, which has low efficiency and results in uneven laying of the nonwoven fabric, affecting the weaving quality.

Method used

A uniform stretching and forming device for nonwoven packaging bags is adopted. The device uses gear transmission components to drive the mounting frame to move synchronously. Combined with the positive stretching frame and the negative stretching frame, the nonwoven fabric is stretched evenly on both sides. The clamping is adjusted by the fixed and movable components to achieve uniform stretching of the nonwoven fabric.

Benefits of technology

It improves the weaving quality of non-woven packaging bags, reduces the probability of non-woven fabric loosening, enhances the clamping effect, and strengthens the stability of the sewing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a uniform drafting forming device for a non-woven fabric packaging bag, which comprises a base plate, one side of the base plate is fixedly connected with a workbench, and relates to the technical field of non-woven fabric packaging bag forming. The working table is fixedly connected to one side of the chassis, the gear transmission part is arranged in the interlayer between the chassis and the working table and comprises the gear and the rack, the gear is rotationally connected with the chassis, the rack is connected with the gear in a meshed mode, and the mounting frame is fixedly connected with the rack. Mounting frames are arranged on the two sides of the chassis, and the two mounting frames synchronously move through the gear transmission part, so that the two racks can be driven to synchronously move through rotation of the gear, then the two mounting frames are driven to synchronously move, and the positive traction frame and the partial traction frame on one sides of the mounting frames can uniformly pull the two sides of the non-woven fabric on the workbench; a worker or a machine can conveniently sew at the right-angle side of the mounting frame, and the weaving quality of the non-woven fabric packaging bag can be effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of nonwoven packaging bag forming technology, specifically a uniform stretching forming device for nonwoven packaging bags. Background Technology

[0002] Non-woven packaging bags are an environmentally friendly and practical packaging material, also known as non-woven fabric bags. They are made from non-woven fabric, a new type of fiber product with a soft, breathable, and planar structure, produced by using various web-forming methods and bonding techniques from polymer chips, short fibers, or filaments. Non-woven packaging bags are durable, aesthetically pleasing, breathable, reusable, and easy to wash, making them ideal for various scenarios such as shopping, packaging, and advertising. In the weaving process of non-woven packaging bags, stitch-knitting technology is often used. This technology utilizes warp-knitted loop structures to reinforce the fiber web, yarn layers, or non-woven materials, thus creating the non-woven packaging bag.

[0003] Therefore, nonwoven packaging bags need to be pulled and aligned before weaving to carry out complete packaging operations. However, in the existing technology, nonwoven packaging bags are mostly laid flat by manual stretching before weaving, resulting in low stretching efficiency and room for improvement. Utility Model Content

[0004] The purpose of this invention is to provide a uniform stretching and forming device for nonwoven packaging bags to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a uniform stretching and forming device for non-woven packaging bags, comprising a chassis, a worktable fixedly connected to one side of the chassis, a gear transmission component disposed in the interlayer between the chassis and the worktable, mounting frames disposed on both sides of the chassis, the gear transmission component enabling the two sets of mounting frames to move synchronously, a fixing component fixedly mounted on the outer side of the mounting frame, a movable component movably connected to the outer side of the mounting frame, a forward stretching frame movably connected to one side of the fixing component, and an off-center stretching frame movably connected to one side of the movable component, both the forward stretching frame and the off-center stretching frame being used for non-woven fabric traction and clamping.

[0006] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein the gear transmission component includes a gear and a rack, the gear is rotatably connected to the chassis, the rack is meshed with the gear, and the mounting frame is fixedly connected to the rack.

[0007] As a further embodiment of this utility model: a uniform stretching forming device for non-woven packaging bags, wherein a fixed seat is fixedly connected to one side of the fixing member, and a positive stretching frame is movably expanded inside the fixed seat, and one end of the positive stretching frame is adapted to the workbench.

[0008] As a further embodiment of this utility model: a uniform stretching forming device for non-woven packaging bags, wherein the movable part is movably expanded and connected to the mounting frame, a rotating seat is screwed to one side of the movable part, an offset stretching frame is movably expanded and connected inside the rotating seat, and one end of the offset stretching frame is adapted to the worktable.

[0009] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a scale is fixedly connected to one side of the mounting frame, and the movable part is adapted to the scale.

[0010] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a groove is provided inside the chassis, a rack frame is fixedly connected to one side of the rack, and the rack frame is movably connected to the groove.

[0011] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a friction wheel is rotatably connected inside the slide groove, and the rack frame is adapted to the friction wheel.

[0012] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a base is fixedly connected to one side of the chassis, and a soft pad is fixedly installed on the side of the base away from the chassis.

[0013] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a servo motor is fixedly installed on one side of the chassis, and the output end of the servo motor passes through the chassis and is fixedly connected to a gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. A workbench is fixedly connected to one side of the chassis. A gear transmission component is installed in the interlayer between the chassis and the workbench. The gear transmission component includes a gear and a rack. The gear is rotatably connected to the chassis, and the rack is meshed with the gear. The mounting frame is fixedly connected to the rack. Mounting frames are provided on both sides of the chassis. The gear transmission component allows the two sets of mounting frames to move synchronously. Therefore, the rotation of the gear can drive the two sets of racks to move synchronously, and then drive the two sets of mounting frames to move synchronously. This allows the positive and negative pull frames on one side of the mounting frame to pull the non-woven fabric on the workbench evenly from both sides, making it convenient for personnel or machines to sew at the right-angled edges of the mounting frame. This can effectively improve the weaving quality of non-woven packaging bags.

[0016] 2. Because a fixing component is fixedly installed on the outside of the mounting frame, and a movable component is movably connected to the outside of the mounting frame, a positive traction frame is movably connected to one side of the fixing component, and an off-center traction frame is movably connected to one side of the movable component. Both the positive and off-center traction frames are used for non-woven fabric traction and clamping. Specifically, a fixing seat is fixedly connected to one side of the fixing component, and the positive traction frame is movably expanded inside the fixing seat. One end of the positive traction frame is adapted to the worktable, and the movable component is movably expanded to the mounting frame. A rotating seat is screwed to one side of the movable component, and an off-center traction frame is movably expanded inside the rotating seat. One end of the off-center traction frame is adapted to the worktable. Therefore, when the positive traction frame clamps the middle section of both sides of the non-woven fabric packaging bag, the edge of the off-center traction frame clamping the non-woven fabric can be rotated and adjusted, thereby reducing the probability of the non-woven fabric loosening and improving the clamping effect of the non-woven fabric. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a uniform stretching and forming device for nonwoven packaging bags according to this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the chassis in a uniform stretching and forming device for nonwoven packaging bags according to this utility model.

[0019] Figure 3 This is a schematic diagram of the chute and friction wheel in a uniform stretching and forming device for nonwoven packaging bags according to this utility model;

[0020] Figure 4 This is a schematic diagram of the gears and racks in a uniform stretching and forming device for nonwoven packaging bags according to this utility model.

[0021] Figure 5 This is a schematic diagram of the friction wheel and rack frame in a uniform stretching and forming device for nonwoven packaging bags according to this utility model;

[0022] In the diagram: 1. Chassis; 2. Workbench; 3. Mounting bracket; 4. Fixing component; 5. Moving component; 6. Fixed seat; 7. Rotating seat; 8. Positive pull bracket; 9. Off-center pull bracket; 10. Scale; 11. Base; 12. Servo motor; 13. Gear; 14. Rack; 15. Slide groove; 16. Friction wheel; 17. Rack frame. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0025] Please see Figures 1-5 In this embodiment of the present invention, a uniform stretching and forming device for nonwoven packaging bags includes a base plate 1. A workbench 2 is fixedly connected to one side of the base plate 1. A gear transmission component is provided in the interlayer between the base plate 1 and the workbench 2. Mounting frames 3 are provided on both sides of the base plate 1. The gear transmission component allows the two sets of mounting frames 3 to move synchronously. A fixing member 4 is fixedly installed on the outer side of the mounting frame 3. A movable member 5 is movably connected to the outer side of the mounting frame 3. A positive traction frame 8 is movably connected to one side of the fixing member 4. An off-center traction frame 9 is movably connected to one side of the movable member 5. Both the positive traction frame 8 and the off-center traction frame 9 are used for nonwoven fabric traction and clamping.

[0026] Since a workbench 2 is fixedly connected to one side of the chassis 1, a gear transmission component is provided in the interlayer between the chassis 1 and the workbench 2. The gear transmission component includes a gear 13 and a rack 14. The gear 13 is rotatably connected to the chassis 1, and the rack 14 is meshed with the gear 13. The mounting frame 3 is fixedly connected to the rack 14. Mounting frames 3 are provided on both sides of the chassis 1. The gear transmission component allows the two sets of mounting frames 3 to move synchronously. Therefore, the rotation of the gear 13 can drive the two sets of racks 14 to move synchronously, and then drive the two sets of mounting frames 3 to move synchronously. This allows the positive pull frame 8 and the negative pull frame 9 on one side of the mounting frame 3 to pull the non-woven fabric on the workbench 2 evenly from both sides, making it convenient for personnel or machines to sew at the right-angled edge of the mounting frame 3, which can effectively improve the weaving quality of non-woven packaging bags.

[0027] Because a fixing member 4 is fixedly installed on the outside of the mounting frame 3, and a movable member 5 is movably connected to the outside of the mounting frame 3, a positive traction frame 8 is movably connected to one side of the fixing member 4, and an off-center traction frame 9 is movably connected to one side of the movable member 5. Both the positive traction frame 8 and the off-center traction frame 9 are used for non-woven fabric traction and clamping. Specifically, a fixing seat 6 is fixedly connected to one side of the fixing member 4, and the positive traction frame 8 is movably expanded inside the fixing seat 6. One end of the positive traction frame 8 is adapted to the workbench 2, and the movable member 5 is movably expanded to the mounting frame 3. A rotating seat 7 is screwed to one side of the movable member 5, and the off-center traction frame 9 is movably expanded inside the rotating seat 7. One end of the off-center traction frame 9 is adapted to the workbench 2. Therefore, when the positive traction frame 8 clamps the middle section of both sides of the non-woven fabric packaging bag, the off-center traction frame 9 can be rotated and adjusted to clamp the edge of one side of the non-woven fabric, thereby reducing the probability of the non-woven fabric loosening and improving the clamping effect of the non-woven fabric.

[0028] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein the gear transmission component includes a gear 13 and a rack 14, the gear 13 is rotatably connected to the chassis 1, the rack 14 is meshed with the gear 13, and the mounting frame 3 is fixedly connected to the rack 14.

[0029] As a further embodiment of this utility model: a uniform stretching forming device for non-woven packaging bags, wherein a fixed base 6 is fixedly connected to one side of the fixing member 4, and a positive stretching frame 8 is movably expanded inside the fixed base 6, and one end of the positive stretching frame 8 is adapted to the workbench 2.

[0030] As a further embodiment of this utility model: a uniform stretching forming device for non-woven packaging bags, wherein the movable part 5 is movably expanded and connected to the mounting frame 3, a rotating seat 7 is screwed to one side of the movable part 5, and an offset stretching frame 9 is movably expanded and connected inside the rotating seat 7, and one end of the offset stretching frame 9 is adapted to the worktable 2.

[0031] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a scale 10 is fixedly connected to one side of the mounting frame 3, and the movable part 5 is adapted to the scale 10.

[0032] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a groove 15 is provided inside the chassis 1, and a rack frame 17 is fixedly connected to one side of the rack 14, and the rack frame 17 is movably connected to the groove 15.

[0033] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a friction wheel 16 is rotatably connected inside the slide groove 15, and the rack frame 17 is adapted to the friction wheel 16.

[0034] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a base 11 is fixedly connected to one side of the base 1, and a soft pad is fixedly installed on the side of the base 11 away from the base 1.

[0035] As a further embodiment of this utility model: a uniform stretching and forming device for non-woven packaging bags, wherein a servo motor 12 is fixedly installed on one side of the chassis 1, and the output end of the servo motor 12 passes through the chassis 1 and is fixedly connected to the gear 13.

[0036] The working principle of this utility model is as follows: A workbench 2 is fixedly connected to one side of the chassis 1. A gear transmission component is provided in the interlayer between the chassis 1 and the workbench 2. The gear transmission component includes a gear 13 and a rack 14. The gear 13 is rotatably connected to the chassis 1, and the rack 14 is meshed with the gear 13. The mounting frame 3 is fixedly connected to the rack 14. Mounting frames 3 are provided on both sides of the chassis 1. The gear transmission component allows the two sets of mounting frames 3 to move synchronously. Therefore, the rotation of the gear 13 can drive the two sets of racks 14 to move synchronously, and then drive the two sets of mounting frames 3 to move synchronously. This allows the positive pull frame 8 and the negative pull frame 9 on one side of the mounting frame 3 to pull the non-woven fabric on the workbench 2 evenly from both sides, making it convenient for personnel or machines to sew at the right-angled edge of the mounting frame 3, which can effectively improve the weaving quality of non-woven packaging bags.

[0037] Because a fixing member 4 is fixedly installed on the outside of the mounting frame 3, and a movable member 5 is movably connected to the outside of the mounting frame 3, a positive traction frame 8 is movably connected to one side of the fixing member 4, and an off-center traction frame 9 is movably connected to one side of the movable member 5. Both the positive traction frame 8 and the off-center traction frame 9 are used for non-woven fabric traction and clamping. Specifically, a fixing seat 6 is fixedly connected to one side of the fixing member 4, and the positive traction frame 8 is movably expanded inside the fixing seat 6. One end of the positive traction frame 8 is adapted to the workbench 2, and the movable member 5 is movably expanded to the mounting frame 3. A rotating seat 7 is screwed to one side of the movable member 5, and the off-center traction frame 9 is movably expanded inside the rotating seat 7. One end of the off-center traction frame 9 is adapted to the workbench 2. Therefore, when the positive traction frame 8 clamps the middle section of both sides of the non-woven fabric packaging bag, the off-center traction frame 9 can be rotated and adjusted to clamp the edge of one side of the non-woven fabric, thereby reducing the probability of the non-woven fabric loosening and improving the clamping effect of the non-woven fabric.

[0038] 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 uniform stretching and forming device for nonwoven packaging bags, characterized in that, Includes a chassis (1), a workbench (2) is fixedly connected to one side of the chassis (1), a gear transmission component is provided in the interlayer between the chassis (1) and the workbench (2), and mounting frames (3) are provided on both sides of the chassis (1). The gear transmission component allows the two sets of mounting frames (3) to move synchronously. A fixing component (4) is fixedly installed on the outside of the mounting frame (3), and a movable component (5) is movably connected to the outside of the mounting frame (3). A positive traction frame (8) is movably connected to one side of the fixing component (4), and an off-center traction frame (9) is movably connected to one side of the movable component (5). Both the positive traction frame (8) and the off-center traction frame (9) are used for non-woven fabric traction clamping.

2. The uniform stretching and forming device for nonwoven packaging bags according to claim 1, characterized in that, The gear transmission component includes a gear (13) and a rack (14). The gear (13) is rotatably connected to the chassis (1), the rack (14) is meshed with the gear (13), and the mounting bracket (3) is fixedly connected to the rack (14).

3. The uniform stretching and forming device for nonwoven packaging bags according to claim 2, characterized in that, A fixed base (6) is fixedly connected to one side of the fixing member (4), and a positive tie (8) is movably expanded inside the fixed base (6). One end of the positive tie (8) is adapted to the workbench (2).

4. The uniform stretching and forming device for nonwoven packaging bags according to claim 3, characterized in that, The movable part (5) is movably expanded to the mounting bracket (3). A rotating seat (7) is screwed to one side of the movable part (5). An offset bracket (9) is movably expanded inside the rotating seat (7). One end of the offset bracket (9) is adapted to the worktable (2).

5. The uniform stretching and forming device for nonwoven packaging bags according to claim 4, characterized in that, The mounting bracket (3) has a scale (10) fixedly connected to one side, and the movable part (5) is adapted to the scale (10).

6. The uniform stretching and forming device for nonwoven packaging bags according to claim 5, characterized in that, The chassis (1) has a sliding groove (15) inside, and a rack frame (17) is fixedly connected to one side of the rack (14). The rack frame (17) is movably connected to the sliding groove (15).

7. The uniform stretching and forming device for nonwoven packaging bags according to claim 6, characterized in that, The inside of the slide groove (15) is rotatably connected to a friction wheel (16), and the rack frame (17) is adapted to the friction wheel (16).

8. The uniform stretching and forming device for nonwoven packaging bags according to claim 7, characterized in that, A base (11) is fixedly connected to one side of the chassis (1), and a soft pad is fixedly installed on the side of the base (11) away from the chassis (1).

9. The uniform stretching and forming device for nonwoven packaging bags according to claim 8, characterized in that, A servo motor (12) is fixedly installed on one side of the chassis (1), and the output end of the servo motor (12) passes through the chassis (1) and is fixedly connected to the gear (13).