Automatic collar sewing machine

Abstract

The application discloses an automatic collar sewing machine, which comprises a sewing machine head, a feeding mechanism composed of a first roller and a second roller, and a segmented auxiliary feeding mechanism arranged above a feeding path between the first roller and the second roller. The segmented auxiliary feeding mechanism comprises a mounting seat, a mounting plate arranged on the mounting seat and capable of being lifted, a connecting plate fixed to the mounting plate and extending downward, a first roller and a second roller arranged at the lower end of the connecting plate and capable of rotating, and an auxiliary feeding belt arranged between the first roller and the second roller. The mounting plate is provided with a driving motor for driving the first roller to rotate.

Description

TECHNICAL FIELD

[0001] The present application relates to sewing equipment, in particular to an automatic collar sewing machine. BACKGROUND

[0002] In the prior art, the rib collar operation of a T-shirt has been automated, for example, the utility model patent with the patent number 202121954837.1 discloses a overlock collar machine, which comprises a machine frame, a overlock machine head is arranged on the machine frame, a first roller and a second roller for feeding are arranged on the machine frame, and a blowing pipe for blowing material is arranged between the first roller and the second roller. The first roller has a conical body, and a raised spiral feeding guide pattern is formed on the conical body; the spiral feeding guide pattern is directed towards the sewing machine needle direction. A collar logo feeding mechanism, a collar logo cutting mechanism, and a collar logo folding mechanism are arranged on the machine frame, and a movable logo grabbing mechanism is arranged between the output port of the collar logo folding mechanism and the collar logo feeding position; a logo position sensor is arranged between the shirt layer and the collar layer, and when the collar logo insertion position is detected by the logo position sensor, the logo grabbing mechanism moves the collar logo from the output port of the collar logo folding mechanism to the collar logo insertion position.

[0003] However, in the existing T-shirt rib collar operation process, due to the elasticity of the rib collar, the circumference of the rib collar is slightly smaller than the T-shirt collar, and the outer edge of the T-shirt collar will uniformly contract and be fixed by the rib collar, as shown in the figure, so that the T-shirt has wrinkles uniformly distributed on the outer collar of the rib collar, which affects the fit and aesthetics of the T-shirt. Figure 1 SUMMARY

[0004] The present application provides an automatic collar sewing machine, which can control the feeding speed of the T-shirt collar in segments during the collar operation process, thereby improving the sewing quality and aesthetics of the T-shirt collar and the rib collar.

[0005] The technical scheme adopted by the present application to solve the above technical problems is as follows: an automatic collar sewing machine, comprising a sewing machine head, a feeding mechanism composed of a first roller and a second roller, and a segmented auxiliary feeding mechanism arranged above the feeding path between the first roller and the second roller, wherein the segmented auxiliary feeding mechanism comprises a mounting seat, a mounting plate arranged on the mounting seat and capable of being lifted, a connecting plate extending downward and fixed to the mounting plate, a first roller and a second roller arranged at the lower end of the connecting plate and capable of rotating, and an auxiliary feeding belt sleeved between the first roller and the second roller; the mounting plate is provided with a driving motor for driving the first roller to rotate.

[0006] To optimize the above technical scheme, the present application further includes the following improved technical schemes.

[0007] ​The automatic collar sewing machine comprises a first control module for controlling the driving motor to rotate at a first speed in a first stroke, a second control module for controlling the driving motor to rotate at a second speed in a second stroke, and a third control module for controlling the driving motor to rotate at a third speed in a third stroke.

[0008] The first roller and the second roller are provided with a deviation rectifying mechanism, and the segmented auxiliary feeding mechanism is located at one side of the deviation rectifying mechanism.

[0009] The first roller is connected with a first synchronous wheel rotating synchronously, the power output shaft of the driving motor is provided with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are provided with a synchronous belt.

[0010] The first roller and the second roller are provided with at least two auxiliary feeding belts.

[0011] The first roller and the second roller are provided with annular grooves for accommodating the auxiliary feeding belts.

[0012] The mounting plate is slidably mounted on the mounting base through the lifting guide rail and the sliding block, and the mounting base is provided with a lifting cylinder for driving the mounting plate to move up and down.

[0013] The connecting plate is provided with a tensioning synchronous wheel matched with the synchronous belt.

[0014] Compared with the prior art, the automatic collar sewing machine can adjust the feeding speed of the T-shirt collar through the segmented auxiliary feeding mechanism, can flatten the T-shirt collar relative to the rib collar, and can improve the sewing quality and the aesthetic degree. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a sewing effect diagram of the existing T-shirt rib collar.

[0016] Figure 2 is a sewing effect diagram of the T-shirt rib collar of the embodiment.

[0017] Figure 3 is a partial three-dimensional structural schematic diagram of the automatic collar sewing machine.

[0018] Figure 4 is a partial assembly schematic diagram of the automatic collar sewing machine.

[0019] Figure 5 is a three-dimensional structural schematic diagram of the segmented auxiliary feeding mechanism. EMBODIMENT

[0020] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0021] Figures 1 to 5 is a structural schematic diagram of the present application.

[0022] Wherein the reference signs are: sewing machine head 1, first roller 2, second roller 3, mounting seat 4, mounting plate 5, connecting plate 51, first roller 52, second roller 53, auxiliary feeding belt 54, tensioning synchronous wheel 55, driving motor 6, first synchronous wheel 61, second synchronous wheel 62, synchronous belt 63, lifting cylinder 7, first stroke 81, second stroke 82, third stroke 83, rib collar 9, T-shirt 91.

[0023] The automatic collar feeding sewing machine comprises a sewing machine head 1 and a feeding mechanism composed of a first roller 2 and a second roller 3. A rib collar 9 and a T-shirt 91 are sleeved on the first roller 2 and the second roller 3, the sewing side of the rib collar 9 is aligned with the collar side of the T-shirt 91, and the rotation feeding of the rib collar 9 and the T-shirt 91 is controlled by the first roller 2 and the second roller 3, and then the rib collar 9 and the T-shirt 91 are sewn and fixed at the needle of the sewing machine head 1.

[0024] A segmented auxiliary feeding mechanism is arranged above the feeding path between the first roller 2 and the second roller 3, the segmented auxiliary feeding mechanism comprises a mounting seat 4, the mounting seat 4 is provided with a mounting plate 5 capable of lifting, the mounting plate 5 is fixed with a connecting plate 51 extending downward, the lower end of the connecting plate 51 is provided with first and second rollers 52 and 53 capable of rotating, and the first and second rollers 52 and 53 are sleeved with an auxiliary feeding belt 54.

[0025] The mounting plate 5 is provided with a driving motor 6 for driving the first roller 52 to rotate. When the mounting plate 5 is in a lowered state, the second roller 53 is just pressed on the surface of the collar of the T-shirt 91, and the auxiliary feeding belt 54 and the second roller 53 can generate a moving force on the surface of the collar of the T-shirt 91 when rotating, so as to adjust the feeding speed of the collar layer of the T-shirt 91 in the feeding process, so that the feeding speed of the collar layer of the T-shirt 91 is different from that of the rib collar 9.

[0026] In the embodiment, the mounting seat 4 is fixed on the sewing machine head 1, the connecting plate 51 extends downward, so that the second roller 53 is located above the feeding path and between the sewing needle and the deviation correcting mechanism. The mounting plate 5 is slidingly installed on the mounting seat 4 through a lifting guide rail and a sliding block, and the mounting seat 4 is provided with a lifting cylinder 7 for driving the mounting plate 5 to move up and down. The lifting cylinder 7 controls whether the mounting plate 5 is in a lowered state or a raised state.

[0027] The automatic collar feeding sewing machine comprises a first control module for controlling the driving motor 6 to rotate at a first speed in a first stroke 81, a second control module for controlling the driving motor 6 to rotate at a second speed in a second stroke 82, and a third control module for controlling the driving motor 6 to rotate at a third speed in a third stroke 83. For example, the first speed is 0.5 m / s, the second speed is 1 m / s, and the third speed is 1.5 m / s. Figure 2The second stroke 82 is located between the first stroke 81 and the third stroke 83. The first stroke 81 is from the left shoulder line to the second stroke 82, and the third stroke 83 is from the right shoulder line to the second stroke 82. The lengths of the first stroke 81, the second stroke 82 and the third stroke 83 can be set by the operator according to the size of the garment.

[0028] Generally, the feeding mechanism feeds the rib collar 9 and the T-shirt 91 from the left shoulder line along the first stroke 81, the second stroke 82 and the third stroke 83 in turn by the needle sewing. When the first stroke 81 passes through the needle, the first control module controls the driving motor 6 to rotate at a first speed. At this time, the rotation speed of the auxiliary feeding belt 54 is slightly greater than the feeding speed of the first roller 2 and the second roller 3. At this time, the feeding speed of the collar layer of the T-shirt 91 under the action of the segmented auxiliary feeding mechanism is greater than the feeding speed of the rib collar 9. Therefore, at the first stroke 81, the second roller 53 and the auxiliary feeding belt 54 can play a role in flattening the collar layer of the T-shirt 91.

[0029] When the second stroke 82 passes through the needle, the second control module controls the driving motor 6 to rotate at a second speed. At this time, the rotation speed of the auxiliary feeding belt 54 is equal to the feeding speed of the first roller 2 and the second roller 3. The redundancy of the T-shirt 91 will be sewn together with the rib collar 9 at the second stroke 82.

[0030] When the third stroke 83 passes through the needle, the third control module controls the driving motor 6 to rotate at a third speed. At this time, the rotation speed of the auxiliary feeding belt 54 is slightly greater than the feeding speed of the first roller 2 and the second roller 3. Therefore, at the third stroke 83, the second roller 53 and the auxiliary feeding belt 54 can play a role in flattening the T-shirt 91. The final sewing effect is shown in Figure 2 As shown, the part of the T-shirt 91 below the two shoulder lines is very close to the connection with the rib collar 9, and the wrinkles are concentrated at the second stroke 82, improving the quality and aesthetics of the T-shirt 91.

[0031] A correction mechanism is provided between the first roller 2 and the second roller 3, and the segmented auxiliary feeding mechanism is located on one side of the correction mechanism. The correction mechanism is a prior art, and the correction direction of the correction mechanism is perpendicular to the feeding direction of the feeding mechanism, which can correct the alignment of the edge of the collar of the T-shirt 91 and the edge of the rib collar 9. The segmented auxiliary feeding mechanism is located behind the correction mechanism. During the rotation and feeding process of the T-shirt 91, the T-shirt 91 is first corrected by the correction mechanism, then passes through the segmented auxiliary feeding mechanism, and finally moves to the needle for sewing operation.

[0032] The first roller 52 is connected with a first synchronous wheel 61 rotating synchronously, and a power output shaft of the driving motor 6 is installed with a second synchronous wheel 62, and the first synchronous wheel 61 and the second synchronous wheel 62 are installed with a synchronous belt 63. The first roller 52 and the first synchronous wheel 61 can be coaxially connected, or fixedly connected between the wheel bodies, or synchronously rotate through a transmission gear. The connecting plate 51 is provided with a tensioning synchronous wheel 55 matched with the synchronous belt 63.

[0033] At least two auxiliary feeding belts 54 are sleeved between the first roller 52 and the second roller 53. The first roller 52 and the second roller 53 are provided with annular grooves accommodating the auxiliary feeding belts 54.

[0034] The best embodiment of the present application has been illustrated, and various changes or modifications made by those skilled in the art will not deviate from the scope of the present application.

Claims

1. An automatic neckline sewing machine, comprising a sewing machine head (1) and a feeding mechanism consisting of a first roller (2) and a second roller (3), characterized in that: in A segmented auxiliary feeding mechanism is provided above the feeding path between the first roller (2) and the second roller (3). The segmented auxiliary feeding mechanism includes a mounting base (4), on which a lifting mounting plate (5) is provided. The mounting plate (5) is fixed with a downwardly extending connecting plate (51). The lower end of the connecting plate (51) is provided with a rotatable first roller (52) and a second roller (53). An auxiliary feeding belt (54) is sleeved between the first roller (52) and the second roller (53). The mounting plate (5) is provided with a drive motor (6) for driving the first roller (52) to rotate. The mechanism includes a method for controlling the drive motor (6) to rotate in the first stroke (81) at the first... The system comprises a first control module for rotating at a certain speed, a second control module for controlling the drive motor (6) to rotate at a second speed in the second stroke (82), and a third control module for controlling the drive motor (6) to rotate at a third speed in the third stroke (83); the second stroke (82) is located between the first stroke (81) and the third stroke (83); the first stroke (81) is from the left shoulder line to the second stroke (82), and the third stroke (83) is from the right shoulder line to the second stroke (82); the feeding mechanism will sew the ribbed collar (9) and T-shirt (91) from the left shoulder line along the first stroke (81), the second stroke (82), and the third stroke (83) sequentially through the needle.

2. The automatic neckline sewing machine according to claim 1, characterized in that: A correction mechanism is provided between the first roller (2) and the second roller (3), and the segmented auxiliary feeding mechanism is located on one side of the correction mechanism.

3. The automatic neckline sewing machine according to claim 1, characterized in that: The first roller (52) is connected to a first synchronous pulley (61) that rotates synchronously, and a second synchronous pulley (62) is installed on the power output shaft of the drive motor (6). A synchronous belt (63) is installed between the first synchronous pulley (61) and the second synchronous pulley (62).

4. The automatic neckline sewing machine according to claim 3, characterized in that: At least two auxiliary feeding belts (54) are fitted between the first roller (52) and the second roller (53).

5. The automatic neckline sewing machine according to claim 4, characterized in that: The first roller (52) and the second roller (53) are provided with annular grooves to accommodate the auxiliary feed belt (54).

6. The automatic neckline sewing machine according to claim 5, characterized in that: The mounting plate (5) is slidably mounted on the mounting base (4) via a lifting guide rail and a slider. The mounting base (4) is provided with a lifting cylinder (7) for driving the mounting plate (5) to move up and down.

7. The automatic neckline sewing machine according to claim 3, characterized in that: The connecting plate (51) is provided with a tensioning synchronous pulley (55) that cooperates with the synchronous belt (63).

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