Bag opening machine

Abstract

The utility model relates to a bag opening machine. A sewing device, a laser cutting device and a bag opening forming device are arranged on a working table. A mounting frame provided with a first driving mechanism is arranged on the upper portion of the working table, and the bag opening forming device is connected with the first driving mechanism through a base. An adsorption device is further arranged on the outer pressing frame of the material fixing mechanism. The bag mouth forming device overcomes the defects that in the prior art, a bag mouth forming device is unstable after being used for a period of time, and the reject ratio of secondary sewing is high.

Description

Technical Field

[0001] This utility model relates to the field of garment processing machinery technology, specifically a bag opening machine. 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 CN222666241U 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] In practical applications, the first drive mechanism of this bag-opening machine is set below the worktable, just like previous bag-opening machines. However, this setting leads to a problem of inconsistent overall stability. The reason for this is that the drive mechanism of the bag opening forming device is located below the worktable. The connection between the bag opening forming device and the drive mechanism is similar to the drive mechanism lifting the bag opening forming device and moving it back and forth on the worktable. Since the bag opening forming device is quite heavy, after a period of time, the connection between the bag opening forming mechanism and the drive mechanism experiences mechanical fatigue, the gap widens, and instability occurs. This is a problem that urgently needs to be solved.

[0005] In addition, during the process of sewing the first piece of bag fabric and then receiving the second piece of bag fabric, the first piece of bag fabric often wrinkles when it meets the second piece of bag fabric due to the weight of the fabric itself, resulting in a high product defect rate. Utility Model Content

[0006] The purpose of this invention is to provide a bag opening machine that solves the problems of instability of the bag opening forming device after a period of use and the high rate of unqualified secondary sewing in the prior art.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A bag opening machine is provided with a worktable, on which a sewing device, a laser cutting device, and a bag opening forming device are provided; the bag opening forming device includes a base, and a folding mechanism and a material fixing mechanism are provided on the base, with the folding mechanism located above the material fixing mechanism; the base is provided with a Z-axis connecting plate, and the material fixing mechanism is connected to the base through the connecting plate.

[0009] The upper part of the workbench has a mounting bracket for the first drive mechanism, and the bag mouth forming device is connected to the first drive mechanism through the base;

[0010] The mounting frame is equipped with guide rails, and the base is slidably connected to the guide rails; the first driving mechanism includes a drive motor and a lead screw, and the lead screw is connected to the base; the drive motor drives the base through the lead screw, thereby driving the bag mouth forming device to move on the guide rails of the mounting frame;

[0011] The material setting mechanism includes a small pressure frame and an outer pressure frame that are mounted on the connecting plate and can be 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.

[0012] 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.

[0013] 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.

[0014] The air extraction device is an air extraction cylinder.

[0015] The guide rails on the mounting bracket are parallel to the workbench surface, and at least two guide rails are provided that are parallel to each other.

[0016] The drive motor is a servo motor.

[0017] The advantages of this utility model are as follows: 1. The drive mechanism of the bag opening forming device is set on the workbench and is equipped with a mounting bracket. The mounting bracket is equipped with a slide rail, and the bag opening forming device is slidably set on the slide rail. In this way, the connection between the bag opening forming device and the drive mechanism is more reasonable, less prone to mechanical fatigue, and the stability is enhanced; 2. The adsorption device on the outside of the outer pressure frame of the material setting mechanism can adsorb the fabric onto the outer pressure frame after the first sewing is completed, so that no wrinkles will be generated when the second piece of bag fabric is joined. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the bag-opening machine of this utility model.

[0019] Figure 2 This is a schematic diagram of the material feeding mechanism of this utility model.

[0020] Figure 3 This is a bottom view of the adsorption device of this utility model.

[0021] In the diagram: A-Sewing device; B-Cutting device; C-Bag opening forming device; 1-Base; 2-Folding mechanism; 3-Material setting mechanism; 31-Connecting plate; 32-Small pressure frame; 33-Outer pressure frame; 34-Processing window; 4-Mounting frame; 41-Guide rail; 51-Servo motor; 52-Screw; 6-Adsorption device; 61-Adsorption body; 62-Suction pipe; 63-Air hole. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] This utility model provides a bag-opening machine, such as... Figure 1-3 As shown, a workbench is provided, on which a sewing device A, a laser cutting device B, and a bag opening forming device C are installed. The bag opening forming device C includes a base 1, and a folding mechanism 2 and a material fixing mechanism 3 installed on the base 1. The folding mechanism 2 is located above the material fixing mechanism 3. The base 1 is provided with a Z-axis connecting plate 31, and the material fixing mechanism 3 is connected to the base 1 through the connecting plate 31. The material fixing mechanism 3 includes a small pressure frame 32 and an outer pressure frame 33 installed 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 existing technology.

[0025] Preferably, such as Figure 1 As shown, the upper part of the workbench has a mounting frame 4 with a first driving mechanism. The bag mouth forming device C is connected to the first driving mechanism through the base 1. The mounting frame 4 is provided with a guide rail 41, and the base 1 is slidably connected to the guide rail 41. The first driving mechanism includes a drive motor 51 and a lead screw 52, ​​and the lead screw 52 is connected to the base 1. The drive motor 51 drives the base 1 through the lead screw 52, ​​thereby driving the bag mouth forming device C to move on the guide rail 41 of the mounting frame 4.

[0026] In the prior art, the first drive mechanism is located below the worktable. The first drive mechanism requires a structure that extends upward from below the worktable and connects to the base 1 of the bag mouth forming device C. This connection method has a long lever arm, similar to the first drive mechanism lifting the bag mouth forming device C upward and moving it on the worktable. After a period of time, the connection between the first drive mechanism and the bag mouth forming device C is prone to mechanical fatigue. In addition, due to the large weight of the bag mouth forming device C, the gap of the connection becomes larger, and the connection begins to loosen, affecting the stability of the machine.

[0027] Compared with the prior art, the technical solution of this utility model moves the first driving mechanism to the upper part of the worktable, and the base 1 of the bag mouth forming device C is connected to the guide rail 41 of the mounting bracket 4 on the worktable. With this connection method, the lever arm is shortened, and the sliding connection with the guide rail 41 makes the movement of the bag mouth forming device C smoother and greatly improves its stability.

[0028] To enhance the stability of the bag forming device C, the guide rails 41 on the mounting frame 4 are parallel to the worktable surface, and at least two parallel guide rails 41 are provided. The drive motor 51 is also a servo motor.

[0029] Furthermore, such as Figure 2 As shown, an adsorption device 6 is also provided at the outer pressure frame 33 of the material feeding mechanism 3.

[0030] like Figure 3 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, that is, the side of the adsorption body 61 facing the worktable has air holes 63. When the air extraction device extracts air, the external gas is drawn away through the air holes 63, creating 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.

[0031] Preferably, without making major changes to the structure of the existing bag opening forming device C, 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.

[0032] In existing technology, after the first piece of bag fabric is sewn onto the material, during the process of the bag opening forming device C moving to receive the second piece of bag fabric, a support is required to hold the material down. Otherwise, when the material is attached to the second piece of bag fabric after movement, the first piece of bag fabric on the material is prone to wrinkling, resulting in the bag opening not meeting the requirements. The function of the adsorption device 6 of this utility model is that, after the first piece of bag fabric is sewn onto the material, during the process of the bag opening forming device C 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 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.

[0033] 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 opening machine, comprising a worktable, wherein a sewing device (A), a laser cutting device (B), and a bag opening forming device (C) are provided on the worktable; the bag opening forming device (C) includes a base (1), and a folding mechanism (2) and a material fixing mechanism (3) provided on the base (1), wherein the folding mechanism (2) is located above the material fixing mechanism (3); the base (1) is provided with a Z-axis connecting plate (31), and the material fixing mechanism (3) is connected to the base (1) through the connecting plate (31); Its features are: The upper part of the workbench has a mounting bracket (4) for the first drive mechanism, and the bag mouth forming device (C) is connected to the first drive mechanism through the base (1); The mounting frame (4) is provided with a guide rail (41), and the base (1) is slidably connected to the guide rail (41); the first driving mechanism includes a drive motor (51) and a lead screw (52), and the lead screw (52) is connected to the base (1); the drive motor (51) drives the base (1) through the lead screw (52), thereby driving the bag mouth forming device (C) to move on the guide rail (41) of the mounting frame (4); The material setting mechanism (3) includes a small pressure frame (32) and an outer pressure frame (33) set 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). The outer pressure frame (33) and the small pressure frame (32) are respectively provided with bag opening processing windows (34). An adsorption device (6) is also provided at the outer pressure frame (33).

2. The bag-opening machine according to claim 1, characterized in that: 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).

3. The bag-opening machine according to claim 2, characterized in that: The adsorption body (61) is set outside the outer pressure frame (33). A suction pipe (62) is set on each side of the adsorption body (61). The two suction pipes (62) extend inward along the two sides of the outer pressure frame (33) and are connected to the suction device.

4. The bag-opening machine according to claim 3, characterized in that: The air extraction device is an air extraction cylinder.

5. The bag-opening machine according to claim 1, characterized in that: The guide rails (41) on the mounting bracket (4) are parallel to the workbench surface, and at least two parallel guide rails (41) are provided.

6. The bag-opening machine according to claim 5, characterized in that: The drive motor (51) is a servo motor.

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