Material fixing mechanism of bag opening forming device

By adding an adsorption device to the outer pressure frame of the bag opening forming device, and using the air extraction device to generate negative pressure to adsorb the fabric, the problem of wrinkles when sewing the first bag fabric with the second bag fabric is solved, thus improving product quality.

CN223974335UActive Publication Date: 2026-03-06YICUN INTELLIGENT MANUFACTURING (JINHUA) CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520656570.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-06
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

In garment processing, wrinkles are easily created when the first and second pocket fabric pieces are sewn together, resulting in a high rate of defective products.

Method used

An adsorption device is added to the outer pressure frame of the bag opening forming device. The negative pressure generated by the air extraction device is used to adsorb the fabric and prevent wrinkles from forming.

Benefits of technology

It effectively prevents fabric from wrinkling during movement, improves product quality, and reduces the defect rate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223974335U_ABST
    Figure CN223974335U_ABST
Patent Text Reader

Abstract

The utility model relates to a material fixing mechanism of a bag mouth forming device, which comprises a small pressing frame and an outer pressing frame, the small pressing frame is positioned above the outer pressing frame, and an adsorption device is further arranged at the outer pressing frame; the adsorption device comprises a tubular adsorption main body, an air suction pipe and an air extractor connected with the air suction pipe; air holes are formed in the lower surface of the adsorption main body. According to the utility model, the problem that wrinkles are generated when the first pocket cloth and the second pocket cloth are sewn in the prior art is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of garment processing machinery technology, specifically to a material setting mechanism for a bag opening forming device. Background Technology

[0002] Currently, the bag opening machines widely used in the garment industry are equipped with a material setting device, a laser cutting device, a bag folding device, and a sewing device. Moreover, the bag folding device and the material setting device are set separately. The bag folding device is generally fixed above the material feeding area of ​​accessories such as bag eyebrow, bag fabric, or zipper, while the material setting device slides back and forth between the bag folding device, the laser cutting device, and the sewing device.

[0003] Chinese utility model patent CN222666241 U discloses a bag opening machine, which integrates a folding mechanism and a material setting mechanism into a bag opening forming device. It can fold the bag opening fabric immediately after it is cut, avoiding the offset and displacement of the bag opening fabric during transportation. In addition, it shortens the length of the worktable, shortens the moving distance of the bag opening fabric, improves the processing speed and efficiency, and also shortens the size of the bag opening machine, saving space.

[0004] However, during the bag manufacturing process, after the first piece of bag fabric is sewn together and the second piece is received, the first piece of bag fabric often wrinkles when it meets the second piece due to the weight of the fabric, resulting in a high defect rate. Utility Model Content

[0005] The purpose of this invention is to provide a material setting mechanism for a bag opening forming device, which solves the problem of wrinkles occurring when the first piece of bag fabric is sewn together with the second piece of bag fabric in the prior art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A material setting mechanism for a bag opening forming device includes a small pressure frame and an outer pressure frame disposed on a connecting plate and capable of being raised and lowered. The small pressure frame is located above the outer pressure frame, and the outer pressure frame and the small pressure frame are respectively provided with bag opening processing windows; an adsorption device is also provided at the outer pressure frame.

[0008] The adsorption device includes a tubular adsorption body and an air suction pipe, as well as an air extraction device connected to the air suction pipe; the lower surface of the adsorption body is provided with air holes.

[0009] The adsorption body is located outside the outer pressure frame. A suction pipe is installed on each side of the adsorption body. The two suction pipes extend inward along the two sides of the outer pressure frame and are connected to the suction device.

[0010] The air extraction device is an air extraction cylinder.

[0011] The advantages of this utility model are: 1. An adsorption device is added to the outer pressure frame to make the fabric fit smoothly and without wrinkles during movement; 2. The adsorption device adopts an air suction method, which is convenient for design and installation; 3. The adsorption device is installed on the outside of the outer pressure frame, which does not change the structure of the original bag opening forming device, resulting in low technical modification costs and good effects. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a bottom view of the adsorption device in this utility model.

[0014] In the diagram: 31-connecting plate; 32-small pressure frame; 33-outer pressure frame; 34-processing window; 6-adsorption device; 61-adsorption body; 62-suction pipe; 63-air hole. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0016] To simplify the description of this embodiment, some components that are well-known to those skilled in the art but are not related to the main content of this invention may be omitted in the accompanying drawings or description. Additionally, for ease of description, some components in the drawings may be omitted, enlarged, or reduced, but these do not represent the actual product dimensions or the complete structure.

[0017] A material setting mechanism for a bag opening forming device, such as Figure 1 As shown, it includes a small pressure frame 32 and an outer pressure frame 33 disposed on the connecting plate 31 and capable of being raised and lowered. The small pressure frame 32 is located above the outer pressure frame 33, and the outer pressure frame 33 and the small pressure frame 32 are respectively provided with bag opening processing windows 34; the above technical features are prior art.

[0018] An adsorption device 6 is installed at position 33 of the outer pressure frame. For example... Figure 2 As shown, the adsorption device 6 includes a tubular adsorption body 61 and an air suction pipe 62, as well as an air extraction device connected to the air suction pipe 62. The lower surface of the adsorption body 61 is provided with air holes 63. When the air extraction device extracts air, the external gas is drawn away through the air holes 63, generating a negative pressure on the lower surface of the adsorption body 61, which adsorbs the fabric. In this way, the fabric will not shift when it moves with the bag opening forming device, and the first bag fabric will be flat and wrinkle-free when it is attached to the second bag fabric.

[0019] Preferably, without making major changes to the structure of the existing bag opening forming device, the adsorption body 61 is located outside the outer pressure frame 33, and an air suction pipe 62 is provided on each side of the adsorption body 61. The two air suction pipes 62 extend inward along the two sides of the outer pressure frame 33 and are connected to the air extraction device. The air extraction device is generally an air extraction cylinder.

[0020] In existing technology, after the first piece of bag fabric is sewn onto the material, during the process of the bag opening forming device moving to receive the second piece of bag fabric, a support is required to hold the material down. Otherwise, when the first piece of bag fabric is attached to the second piece of bag fabric after the movement, wrinkles easily form on the material, resulting in the bag opening not meeting the requirements. The function of the adsorption device 6 in this invention is that, after the first piece of bag fabric is sewn onto the material, during the process of the bag opening forming device moving to receive the second piece of bag fabric, the air extraction device extracts air, and the adsorption body 61 adsorbs the material with the first piece of bag fabric onto the outer pressure frame 33. In this way, the first piece of bag fabric will not shift and wrinkle during the movement, and it will be very flat when attached to the second piece of bag fabric, significantly reducing the product defect rate, and at the same time, no support is needed.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should be considered within the technical scope of this utility model.

Claims

1. A bag mouth forming device's material positioning mechanism, comprising a small pressing frame (32) and an outer pressing frame (33) arranged on a connecting plate (31) and capable of cooperating with lifting, the small pressing frame (32) is located above the outer pressing frame (33), and the outer pressing frame (33) and the small pressing frame (32) are correspondingly provided with a bag mouth processing window (34); characterized in that: An adsorption device (6) is arranged at the outer pressing frame (33). ​ 2. The dosing mechanism of claim 1, wherein: The adsorption device (6) comprises a tubular adsorption body (61) and an air suction pipe (62), and an air suction device connected with the air suction pipe (62); the lower surface of the adsorption body (61) is provided with air holes (63).

3. The dosing mechanism of claim 2, wherein: The adsorption body (61) is arranged outside the outer pressing frame (33), and one air suction pipe (62) is arranged on each side of the adsorption body (61), and the two air suction pipes (62) extend inward along the two side edges of the outer pressing frame (33) and are connected with the air suction device.

4. The dosing mechanism of claim 2, wherein: The air suction device is an air suction cylinder.

Citation Information

Patent Citations

  • Bag opening machine

    CN222666241U