Automatic seaming device for cone yarn woven bag

By designing an automatic sewing device for woven bags, and utilizing the cooperation of a frame, baffles, and tension rollers, the problem of loose yarn inside the woven bags was solved, achieving tight sewing and stable transportation of the woven bags.

CN224257113UActive Publication Date: 2026-05-19HUNAN KECHUANG TEXTILE CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN KECHUANG TEXTILE CORP LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional sewing equipment cannot tightly seal the yarn inside the woven bag, resulting in a large amount of empty space inside the bag, which affects the binding effect and makes it easy to loosen during transportation.

Method used

Design an automatic sewing device for woven bags made of yarn, comprising a base, a sewing machine unit, a frame, a baffle, and a tensioning roller. Through the cooperation of a moving mechanism, a lifting mechanism, and a stepper motor, the device achieves the tensioning and sewing operation of the woven bag, ensuring that the yarn packages are tightly arranged.

Benefits of technology

This improves the tightness of the yarn inside the woven bag, ensuring effective binding, preventing loosening during handling, and facilitating transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic seaming device for a cone yarn woven bag, and relates to the technical field of seaming equipment, the automatic seaming device comprises a base and a sewing machine unit arranged at the top of the base, a groove body is arranged at the top of the base, a frame is arranged at the top of the base, a moving mechanism is arranged at the bottom of the frame, and a sideboard is arranged in the frame; due to the facts that the blocking plate is arranged on the frame and the tensioning rollers are arranged on the blocking plate and the frame, when a woven bag is placed between the blocking plate and an inner layer plate of the frame, the lifting mechanism is used, the blocking plate can move towards the position of the inner layer plate of the frame, the two tensioning rollers can press the woven bag, and the woven bag can be placed on the inner layer plate of the frame through the stepping motor. The woven bag can be pulled towards the interior of the frame, cone yarn is arranged more tightly in the woven bag through interception of the frame and the blocking plate, the bundling effect of a subsequent bundling machine is guaranteed, the situation of loosening in subsequent carrying is avoided, and transportation is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, specifically an automatic sewing device for woven yarn bags. Background Technology

[0002] When packaging yarn packages, they need to be placed inside woven bags, and then the bags are sewn shut using sewing equipment. Currently, traditional sewing equipment has a tight structure, which prevents the woven bags from being sealed to the maximum extent. This results in a large amount of space inside the bag after sewing, and the yarn packages are not tightly packed inside the bag. Consequently, the subsequent strapping of the woven bags becomes less effective, making it easy for the bags to loosen during handling, which is not conducive to operation and transportation. Utility Model Content

[0003] The purpose of this invention is to provide an automatic sewing device for woven yarn bags to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic sewing device for woven yarn bags, comprising a base and a sewing machine unit disposed on the top of the base, wherein a groove is provided on the top of the base;

[0005] The base has a frame at the top, a moving mechanism at the bottom of the frame, a baffle inside the frame, and mounting slots on both the frame and the baffle. A shaft is rotatably connected inside the mounting slot, and a tension roller is fitted on the surface of the shaft. A stepper motor bolted to the shaft is fixedly connected to one end of the frame, and a lifting mechanism is provided at the top of the frame.

[0006] In a further embodiment, the moving mechanism includes a lead screw, which is rotatably connected to the inside of the groove. One end of the lead screw extends through to the outside of the base and is fixedly connected to a servo motor. The surface of the lead screw is threadedly connected to a moving seat that is fixedly connected to the frame.

[0007] In a further embodiment, the lifting mechanism includes a hydraulic cylinder fixedly connected to the top of the frame and a limiting slide rod slidably connected to the frame, wherein the output end of the hydraulic cylinder extends through the interior of the frame and is fixedly connected to the baffle.

[0008] In a further embodiment, the interior of the groove is symmetrically fitted with sliding guide rails, which are slidably connected to the movable seat.

[0009] In a further embodiment, a controller is mounted on the front of the base.

[0010] In a further embodiment, a support frame is symmetrically mounted on the bottom of the base.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model features a frame with a baffle plate and tension rollers on both the baffle plate and the frame. When a woven bag is placed between the baffle plate and the inner layer of the frame, a lifting mechanism moves the baffle plate towards the inner layer of the frame, causing the two tension rollers to press the woven bag tightly. A stepper motor then pulls the woven bag further into the frame. Through the interception of the frame and the baffle plate, the yarn is arranged more tightly inside the woven bag, ensuring the effectiveness of the subsequent strapping machine and preventing loosening during handling, thus facilitating transportation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 3 This is a partial exploded view of an embodiment of the present invention.

[0016] In the diagram: 1. Base; 2. Sewing machine unit; 3. Groove; 4. Frame; 5. Moving mechanism; 51. Lead screw; 52. Servo motor; 53. Moving seat; 6. Guard plate; 7. Mounting groove; 8. Shaft; 9. Tensioning roller; 10. Stepper motor; 11. Lifting mechanism; 111. Hydraulic cylinder; 112. Limiting slide bar; 12. Sliding guide rail; 13. Controller; 14. Support frame. Detailed Implementation

[0017] 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.

[0018] Example 1: This example discloses an automatic sewing device for woven yarn bags, including a base 1 and a sewing machine unit 2 disposed on the top of the base 1. A groove 3 is provided on the top of the base 1, such as... Figure 1 and Figure 2 As shown in this application, the base 1 is the skeleton of the entire device, used to install and fix other structures. The sewing machine unit 2 is designed on the top of the base 1 and can move with the frame 4. The sewing machine unit 2 is used for sewing the opening of the woven bag.

[0019] Furthermore, a controller 13 is mounted on the front of the base 1, and support frames 14 are symmetrically mounted on the bottom of the base 1, such as... Figure 1 As shown, the controller 13 is installed on the frame 4 for the operation of the entire equipment. The support frame 14 is installed at the bottom of the base 1 for the support of the entire equipment, so that the frame 4 of the equipment can be flush with the external conveying platform, making it easy for the opening of the woven bag to smoothly enter between the frame 4 and the baffle 6, facilitating subsequent tightening and sewing.

[0020] More specifically, the base 1 has a frame 4 at its top, a moving mechanism 5 at its bottom, a baffle 6 inside the frame 4, and mounting slots 7 on both the frame 4 and the baffle 6. A shaft 8 is rotatably connected inside the mounting slot 7, and a tension roller 9 is fitted onto the surface of the shaft 8. A stepper motor 10, bolted to the shaft 8, is fixedly connected to one end of the frame 4. A lifting mechanism 11 is located at the top of the frame 4. Figure 1 , Figure 2 , Figure 3 As shown, in this application, frame 4 is designed at the top of base 1, and moving mechanism 5 is designed at the bottom of frame 4. Frame 4 is used for reciprocating movement when it is at the top of base 1. The movement of frame 4 can drive the sewing machine unit 2 to move, thereby performing the sewing work on the woven bag. A baffle 6 is designed inside frame 4. Baffle 6 and frame 4 are used to block the yarn package inside the woven bag. Shaft 8 is rotatably connected inside mounting groove 7, and tension roller 9 is mounted on shaft 8. Lifting mechanism 11 is designed at the top of frame 4. Lifting mechanism 11 can drive baffle 6 to adjust its height inside frame 4. When tension roller 9 on baffle 6 is in contact with tension roller 9 on frame 4, the woven bag can be pressed tightly in the middle. Stepper motor 10 is designed on frame 4. At one end of frame 4, stepper motor 10 serves as the rotation source for shaft 8 on frame 4. When stepper motor 10 drives shaft 8 to rotate, it can drive tension roller 9 to rotate, so that both tension rollers 9 rotate simultaneously, pulling the woven bag into frame 4. The yarn inside the woven bag is intercepted by frame 4 and baffle 6, making the yarn inside the woven bag tighter. After the tensioning is completed, the lifting mechanism 11 separates the two tension rollers 9, and the moving mechanism 5 runs, moving the tightened woven bag to sewing machine unit 2 and through the sewing machine unit 2 to complete the sewing operation. This prevents the yarn from being loose inside the bag, which would worsen the binding effect of the subsequent binding machine and make it easy for the bag to loosen during transportation.

[0021] Furthermore, the moving mechanism 5 includes a lead screw 51, which is rotatably connected to the inside of the groove 3. One end of the lead screw 51 extends through to the outside of the base 1 and is fixedly connected to a servo motor 52. A moving seat 53, which is fixedly connected to the frame 4, is threaded onto the surface of the lead screw 51. The lifting mechanism 11 includes a hydraulic cylinder 111 fixedly connected to the top of the frame 4 and a limiting slide rod 112 slidably connected to the frame 4. The output end of the hydraulic cylinder 111 extends through to the inside of the frame 4 and is fixedly connected to the baffle 6. Figure 1 , Figure 2 As shown, the lead screw 51 is designed inside the groove 3, and the movable seat 53 is installed at the bottom of the frame 4 and threadedly connected to the lead screw 51. The servo motor 52 serves as the power source for the moving mechanism 5, providing rotational power to the lead screw 51. When the servo motor 52 starts, it can drive the lead screw 51 to rotate. The rotation of the lead screw 51 can drive the movable seat 53 to move inside the groove 3 under the sliding limit action of the sliding guide rail 12. Thus, the movable seat 53 drives the frame 4 to move to the top of the base 1. At this time, it is convenient to move the subsequently tightened woven bag to the sewing machine unit 2 for sewing. The cylinder 111 is installed on the top of the frame 4, and its output end extends into the interior of the frame 4 and is fixedly connected to the top of the baffle 6. The hydraulic cylinder 111 can drive the baffle 6 to adjust its height inside the frame 4 under the action of the limiting slide rod 112, so that the tension roller 9 on the baffle 6 and the tension roller 9 inside the frame 4 can be pressed together to apply pressure to the woven bag. When the stepper motor 10 is started, the tension roller 9 rotates through the action of the shaft 8 to apply rotational tension to the woven bag. With the action of the baffle 6 and the frame 4, the woven bag is tightened, so that the yarn is pressed into the inside of the woven bag.

[0022] 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. An automatic sewing device for woven yarn bags, comprising a base (1) and a sewing machine unit (2) disposed on top of the base (1), characterized in that: The top of the base (1) is provided with a groove (3); The base (1) has a frame (4) on top, a moving mechanism (5) on the bottom of the frame (4), a baffle (6) inside the frame (4), and mounting grooves (7) on both the frame (4) and the baffle (6). A shaft (8) is rotatably connected inside the mounting groove (7), and a tension roller (9) is mounted on the surface of the shaft (8). A stepper motor (10) bolted to the shaft (8) is fixedly connected to one end of the frame (4), and a lifting mechanism (11) is provided on the top of the frame (4).

2. The automatic sewing device for woven bags according to claim 1, characterized in that: The moving mechanism (5) includes a lead screw (51), which is rotatably connected to the inside of the groove (3). One end of the lead screw (51) extends through to the outside of the base (1) and is fixedly connected to a servo motor (52). The surface of the lead screw (51) is threadedly connected to a moving seat (53) that is fixedly connected to the frame (4).

3. The automatic sewing device for woven bags according to claim 1, characterized in that: The lifting mechanism (11) includes a hydraulic cylinder (111) fixedly connected to the top of the frame (4) and a limiting slide rod (112) slidably connected to the frame (4). The output end of the hydraulic cylinder (111) extends through the interior of the frame (4) and is fixedly connected to the baffle (6).

4. The automatic sewing device for woven bags according to claim 2, characterized in that: The groove (3) is symmetrically equipped with sliding guide rails (12), which are slidably connected to the movable seat (53).

5. The automatic sewing device for woven bags according to claim 1, characterized in that: The controller (13) is mounted on the front of the base (1).

6. The automatic sewing device for woven bags according to claim 1, characterized in that: The base (1) has a support frame (14) symmetrically installed at its bottom.