Sewing mechanism of pocket opening machine

Abstract

The utility model belongs to the technical field of pocket opening machines, and relates to a sewing mechanism of a pocket opening machine, which comprises a working table fixed on a rack, a cross beam is erected above the working table, a machine head mounting seat is arranged on one side of the cross beam, a machine head component is connected below the machine head mounting seat, and the machine head component is connected with the cross beam. A main motor and a presser foot motor are arranged on the side of the machine head assembly, a motor shaft of the main motor is in transmission connection with the needle bar assembly and drives the needle bar assembly to work, and a motor shaft of the presser foot motor is in transmission connection with the presser foot assembly and drives the presser foot assembly to work; a rotating shuttle assembly is arranged below the workbench, a rotating shuttle motor is arranged on the side of the rotating shuttle assembly, a motor shaft of the rotating shuttle motor is in transmission connection with the rotating shuttle assembly and drives the rotating shuttle assembly to work, and the machine head assembly and the rotating shuttle assembly are correspondingly arranged in a separated mode and jointly form a sewing mechanism. According to the sewing mechanism of the bag opening machine, the overall size of the bag opening machine is reduced, and the bag opening machine can be integrated to an assembly line for use.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag-making machines and relates to a sewing mechanism of a bag-making machine. Background Art

[0002] A bag-making machine is a common garment processing device, mainly used to form pockets at specific positions on garments for convenient carrying of small items. Existing bag-making machines generally include a pressing mechanism for pressing fabrics, a fabric folding mechanism for folding fabrics, a laser tube for cutting fabrics, and a sewing machine for sewing fabrics. For example, Chinese Patent Application Publication No. CN 111575926A (Publication Date: August 25, 2020) discloses a bag-making machine for garment bag mouth processing, including a workbench and a sewing machine. A laser tube for cutting the bag mouth is provided above the workbench. A material placing opening for placing the bag lip is provided on the workbench. A bag folding mechanism is provided on the upper cross beam above the material placing opening. A material positioning mechanism and a shaping mechanism connected together are slidably provided on the upper cross beam. By using the material positioning mechanism and the shaping mechanism slidably provided on the upper cross beam, the material positioning mechanism clamps the garment and sequentially enters the laser tube, the material placing opening, and the sewing machine station. The laser tube completes the cutting of the bag mouth position of the garment. The bag folding mechanism and the shaping mechanism cooperate to align the bag lip with the bag mouth and turn over and fold the bag. Finally, the sewing machine stitches the bag lip and the bag mouth.

[0003] In order to further improve the automation degree of garment processing, it is necessary to jointly use a bag-making machine on the garment processing production line. However, the general lateral length of existing bag-making machines is greater than 1.8 m, and they cannot be integrated into the production line. Therefore, it is very necessary to design a bag-making machine that can be jointly used with the garment processing production line to improve production efficiency. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a sewing mechanism of a bag-making machine. By improving the structure of the sewing mechanism, the overall size of the bag-making machine is reduced, so that the bag-making machine can be integrated into the production line for use.

[0005] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0006] A sewing mechanism of a bag-opening machine, including a workbench fixed on a machine frame. Above the workbench, a cross beam is erected. On one side of the cross beam, a head mounting seat is provided. Below the head mounting seat, a head assembly is connected. On the side of the head assembly, a main motor and a presser foot motor are provided. The motor shaft of the main motor is in transmission connection with the needle bar assembly and drives it to work. The motor shaft of the presser foot motor is in transmission connection with the presser foot assembly and drives it to work. Below the workbench, a rotary hook assembly is provided. On the side of the rotary hook assembly, a rotary hook motor is provided. The motor shaft of the rotary hook motor is in transmission connection with the rotary hook assembly and drives it to work. The head assembly and the rotary hook assembly are correspondingly separated and jointly form a sewing mechanism.

[0007] In the sewing mechanism of the above-mentioned bag-opening machine, preferably, the main motor is arranged outside the head assembly, and the presser foot motor is arranged at the rear side of the head assembly. The rotary hook motor is arranged outside the rotary hook assembly. The outside refers to the side closer to the edge of the bag-opening machine.

[0008] In the sewing mechanism of the above-mentioned bag-opening machine, a head seat bracket is fixed on the cross beam. The front end of the head seat bracket extends out of the front side of the cross beam. The head mounting seat is connected to the front side of the head seat bracket. Preferably, the head seat bracket spans across the cross beam longitudinally.

[0009] In the sewing mechanism of the above-mentioned bag-opening machine, a lifting slide rail mounting plate is arranged on the front side of the head seat bracket. A pair of lifting slide rails are arranged on the front side of the lifting slide rail mounting plate. The head mounting seat is slidably arranged on the lifting slide rails and is driven to slide by a power device. Preferably, the power device is a cylinder, and the cylinder is fixed on the head seat bracket.

[0010] In the sewing mechanism of the above-mentioned bag-opening machine, a rotary drive mechanism is arranged on the head mounting seat. The head assembly is connected below the rotary drive mechanism. The rotary drive mechanism drives the head assembly to rotate around the axis in the vertical direction. Preferably, the rotary drive mechanism is a rotary cylinder.

[0011] In the sewing mechanism of the above-mentioned bag-opening machine, a cover shell is arranged on the head assembly. Both the main motor and the presser foot motor are located inside the cover shell. A number of heat dissipation holes are arranged at the positions of the cover shell corresponding to the main motor and the presser foot motor. Further, the cover shell covers the outside and the rear side of the head assembly.

[0012] In the sewing mechanism of the above-mentioned bag-opening machine, the needle bar crank of the needle bar assembly is sleeved on the motor shaft of the main motor. The axis of the motor shaft of the main motor is distributed horizontally. The presser foot crank of the presser foot assembly is sleeved on the motor shaft of the presser foot motor. The axis of the motor shaft of the presser foot motor is distributed longitudinally.

[0013] In the above-mentioned sewing mechanism of the bag opening machine, the motor shaft of the rotary hook motor is drivingly connected to the rotary hook main shaft of the rotary hook assembly through a synchronous belt, and the axis of the motor shaft of the rotary hook motor is distributed in the longitudinal direction.

[0014] In the above-mentioned sewing mechanism of a bag opening machine, the bag opening machine is embedded in a sewing line, and the transverse dimension of the bag opening machine is less than 1.8 m; preferably, the transverse dimension of the bag opening machine is less than 1.65 m.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a sewing mechanism of a bag opening machine, which adopts a new sewing mechanism on the bag opening machine, including a combination of a head assembly and a rotary hook assembly, and is driven by a main motor, a presser foot motor and a rotary hook motor respectively. Compared with the existing bag opening machine, an integral sewing machine with a considerable transverse length is no longer used, and there is no sewing machine main shaft and other transverse shaft components that occupy a large transverse length. Therefore, by reducing the transverse length of the sewing mechanism, the length of the bag opening machine is reduced, so that the bag opening machine can be integrated into the assembly line of clothing processing, thereby improving the efficiency of clothing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 yes Figure 1 A magnified image of point A;

[0019] Figure 3 It is a three-dimensional internal diagram of the sewing mechanism of the utility model;

[0020] Figure numerals: 1. frame; 2. workbench; 3. crossbeam; 4. machine head mounting seat; 5. machine head assembly; 6. main motor; 7. presser foot motor; 8. hook assembly; 9. hook motor; 10. machine head seat bracket; 11. lifting slide rail mounting plate; 12. lifting slide rail; 13. cover; 14. heat dissipation hole; 15. synchronous belt. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings. Figures 1-3 :

[0022] A sewing mechanism of a bag opening machine comprises a workbench 2 fixed on a frame 1, a crossbeam 3 is arranged above the workbench 2, a machine head mounting seat 4 is arranged on one side of the crossbeam 3, a machine head assembly 5 is connected below the machine head mounting seat 4, a rotary hook assembly 8 is arranged below the workbench 2, the machine head assembly 5 and the rotary hook assembly 8 are arranged separately and form a sewing mechanism together, the sewing mechanism is responsible for the sewing process of the bag opening machine, and the sewing process can be completed by driving the machine head assembly 5 and the rotary hook assembly 8 respectively through their own independent driving systems.

[0023] Specifically, the head assembly 5 includes a needle bar assembly and a presser foot assembly, and the structures of the needle bar assembly and the presser foot assembly are the same as those of the existing sewing machines. A main motor 6 and a presser foot motor 7 are arranged on the side of the head assembly 5. The motor shaft of the main motor 6 is transmission-connected with the needle bar assembly and drives it to work, and the motor shaft of the presser foot motor 7 is transmission-connected with the presser foot assembly and drives it to work; further, the needle bar crank of the needle bar assembly is sleeved on the motor shaft of the main motor 6, and the axis of the motor shaft of the main motor 6 is distributed in the horizontal direction; the presser foot crank of the presser foot assembly is sleeved on the motor shaft of the presser foot motor 7, and the axis of the motor shaft of the presser foot motor 7 is distributed in the longitudinal direction; the motor shaft of the main motor 6 directly drives the needle bar crank to rotate, thereby driving the needle bar assembly to move, and the motor shaft of the presser foot motor 7 directly drives the presser foot crank to rotate, thereby driving the presser foot assembly to move. Therefore, this embodiment no longer needs to set the main shaft of the sewing machine.

[0024] Specifically, a rotary shuttle motor 9 is arranged on the side of the rotary shuttle assembly 8, and the motor shaft of the rotary shuttle motor 9 is transmission connected to the rotary shuttle assembly 8 and drives it to work. The structure of the rotary shuttle assembly 8 is the same as that of the existing sewing machine; the motor shaft of the rotary shuttle motor 9 is transmission connected to the rotary shuttle main shaft of the rotary shuttle assembly 8 through a synchronous belt 15, and the axis of the motor shaft of the rotary shuttle motor 9 is distributed in the longitudinal direction; the motor shaft of the rotary shuttle motor 9 directly drives the rotary shuttle main shaft to rotate through the synchronous belt 15, thereby driving the rotary shuttle assembly 8 to move. Therefore, this embodiment no longer needs to set a transmission structure connected to the sewing machine main shaft.

[0025] In this embodiment, preferably, the main motor 6 is arranged on the outside of the head assembly 5, and the presser foot motor 7 is arranged on the rear side of the head assembly 5; the rotary shuttle motor 9 is arranged on the outside of the rotary shuttle assembly 8; the outside refers to the side closer to the edge of the bag opener.

[0026] In order to make the sewing mechanism more adaptable, the head assembly 5 of this embodiment can be further provided with an adjustable structure, and the adjustment structure includes a height adjustment structure and an angle adjustment structure.

[0027] Specifically, its height adjustment structure is as follows: A headstock bracket 10 is fixed on the cross beam 3. The front end of the headstock bracket 10 extends out of the front side of the cross beam 3. The head mounting seat 4 is connected to the front side of the headstock bracket 10. Preferably, the headstock bracket 10 extends across the cross beam 3 longitudinally, which can further enhance the stability of the headstock bracket 10. A lifting slide rail mounting plate 11 is provided on the front side of the headstock bracket 10. A pair of lifting slide rails 12 are provided on the front side of the lifting slide rail mounting plate 11. The head mounting seat 4 is slidably arranged on the lifting slide rails 12 and is driven to slide by a power device. Preferably, the power device is a cylinder, and the cylinder is fixed on the headstock bracket 10.

[0028] Specifically, its angle adjustment structure is as follows: The head mounting seat 4 is provided with a rotary drive mechanism. The head assembly 5 is connected below the rotary drive mechanism. The rotary drive mechanism drives the head assembly 5 to rotate around an axis in the vertical direction. Preferably, the rotary drive mechanism is a rotary cylinder.

[0029] To protect each motor and facilitate the heat dissipation of the motors, a housing 13 is provided on the head assembly 5. The main motor 6 and the presser foot motor 7 are both located inside the housing 13. A number of heat dissipation holes 14 are provided at positions on the housing 13 corresponding to the main motor 6 and the presser foot motor 7. Further, the housing 13 covers the outside and the rear side of the head assembly 5.

[0030] With the sewing mechanism of the above structure, in this embodiment, the lateral dimension of the bag opening machine can be greatly reduced. Generally speaking, the lateral dimension of the bag opening machine is less than 1.8 m. Preferably, the lateral dimension of the bag opening machine is less than 1.65 m. By reducing the lateral dimension of the bag opening machine, the bag opening machine can be embedded in the sewing production line to realize the automatic bag opening operation in garment processing.

[0031] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A sewing mechanism of a bag-opening machine, comprising a workbench (2) fixed on a frame (1), and a cross beam (3) is erected above the workbench (2), characterized in that, One side of the cross beam (3) is provided with a head mounting seat (4), a head assembly (5) is connected below the head mounting seat (4), a main motor (6) and a presser foot motor (7) are arranged on the side of the head assembly (5), a motor shaft of the main motor (6) is in transmission connection with a needle bar assembly and drives the needle bar assembly to work, and a motor shaft of the presser foot motor (7) is in transmission connection with a presser foot assembly and drives the presser foot assembly to work; A bobbin case assembly (8) is arranged below the workbench (2), a bobbin case motor (9) is arranged on the side of the bobbin case assembly (8), a motor shaft of the bobbin case motor (9) is in transmission connection with the bobbin case assembly (8) and drives the bobbin case assembly (8) to work, and the head assembly (5) and the bobbin case assembly (8) are arranged in a corresponding and separated manner and jointly form a sewing mechanism.

2. The sewing mechanism of a bag opening machine according to claim 1, characterized in that, The main motor (6) is arranged on the outside of the head assembly (5), and the presser foot motor (7) is arranged at the rear side of the head assembly (5); the bobbin case motor (9) is arranged on the outside of the bobbin case assembly (8).

3. The sewing mechanism of a bag opening machine according to claim 1, characterized in that, A head seat bracket (10) is fixed on the cross beam (3), a front end of the head seat bracket (10) extends out of a front side surface of the cross beam (3), and the head mounting seat (4) is connected to the front side surface of the head seat bracket (10).

4. The sewing mechanism of a bag opening machine according to claim 3, characterized in that, A lifting slide rail mounting plate (11) is arranged on the front side surface of the head seat bracket (10), a pair of lifting slide rails (12) are arranged on the front side surface of the lifting slide rail mounting plate (11), and the head mounting seat (4) is slidably arranged on the lifting slide rails (12) and is driven to slide by a power device.

5. The sewing mechanism of a bag opening machine according to claim 1, characterized in that, The head mounting seat (4) is provided with a rotation driving mechanism, the head assembly (5) is connected below the rotation driving mechanism, and the rotation driving mechanism drives the head assembly (5) to rotate around an axis in the vertical direction.

6. The sewing mechanism of a bag-opening machine according to claim 1, characterized in that, A housing (13) is arranged on the head assembly (5), the main motor (6) and the presser foot motor (7) are both located in the housing (13), and a plurality of heat dissipation holes (14) are arranged at positions of the housing (13) corresponding to the main motor (6) and the presser foot motor (7).

7. The sewing mechanism of a bag opening machine according to claim 1, characterized in that, A needle bar crank of the needle bar assembly is sleeved on a motor shaft of the main motor (6), an axis of the motor shaft of the main motor (6) is distributed transversely, a presser foot crank of the presser foot assembly is sleeved on a motor shaft of the presser foot motor (7), and an axis of the motor shaft of the presser foot motor (7) is distributed longitudinally.

8. The sewing mechanism of a bag-opening machine according to claim 1, characterized in that A motor shaft of the bobbin case motor (9) is in transmission connection with a bobbin case main shaft of the bobbin case assembly through a synchronous belt (15), and an axis of the motor shaft of the bobbin case motor (9) is distributed longitudinally.

9. The sewing mechanism of a bag opening machine according to claim 1, characterized in that, The bag opening machine is embedded in the sewing production line, and the transverse dimension of the bag opening machine is less than 1.8 m.

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