Automatic bifurcation device and sewing machine suitable for Y-shaped fabrics

Abstract

The present invention discloses an automatic bifurcation device suitable for Y-shaped fabrics, wherein the Y-shaped fabrics have a horizontal portion and a vertical portion connected to the horizontal portion, and include a bottom plate located below and a cover plate located above the bottom plate, wherein a horizontal channel for the horizontal portion to pass through is provided between the cover plate and the bottom plate, and a vertical channel for the vertical portion to pass through is provided on the cover plate, and a baffle is installed on the cover plate. The automatic bifurcation device suitable for Y-shaped fabrics of the present invention has a reasonable structural design, and can effectively automatically bifurcate the Y-shaped fabrics by providing the horizontal channel, the vertical channel and the baffle, and can prevent the size of the Y-shaped fabrics from deviating, thereby reducing the process difficulty and the labor intensity of the employees, improving the work efficiency, and ensuring the quality of the products, and is particularly suitable for the occasion of two-point sewing of Y-shaped elastic bands.

Description

Technical Field

[0001] The invention relates to the technical field of sewing machines, and in particular to an automatic bifurcating device suitable for Y-shaped cloth and a sewing machine comprising the automatic bifurcating device. Background Art

[0002] With the advancement of science and technology and the improvement of people's living standards, people's requirements for clothing are getting higher and higher, and the production of clothing is getting larger and larger.

[0003] In the prior art, the elastic band used to sew the bottom of the bra is manually operated by employees, and the elastic band is in the shape of a Y. When sewing the Y-shaped elastic band, because the elastic band requires employees to use both hands to pull the elastic band fabric apart, and then use the right hand to fix the angle of the fabric pulling apart, and the other hand to fix the bra bottom fabric, flatten the elastic band on the bottom fabric, push it into the two-point sewing machine for two-point sewing, and then push the elastic band sewing machine while sewing.

[0004] This operation method will cause multiple problems. First, the employee needs to pull open the two ends of the Y-shaped elastic band each time, and needs to position the Y-shaped elastic band to align with the fabric of the bra base. Second, the employee needs to push the Y-shaped elastic band with both hands each time, and then release the other hand to assist the bra to operate. The size control is extremely unstable, which affects the quality of the product. When skilled employees sew, the size will always deviate. For unskilled employees, sewing is more difficult and almost impossible. Moreover, this style must use a Y-shaped elastic band. Without the Y-shaped elastic band, this style of bra cannot achieve the effect of breast gathering and slimming for women, so the above problems cannot be solved by changing the Y-shaped elastic band. Summary of the invention

[0005] In view of this, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an automatic bifurcating device suitable for Y-shaped cloth, which has a reasonable structural design, can effectively automatically bifurcate the Y-shaped cloth, prevent the Y-shaped cloth from deviating during sewing, is safe and convenient to operate, reduces the process difficulty and the labor intensity of employees, improves work efficiency, and can ensure product quality.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An automatic bifurcation device suitable for Y-shaped fabrics, the Y-shaped fabric having a horizontal portion and a vertical portion connected to the horizontal portion, the automatic bifurcation device comprising a bottom plate located below and a cover plate located above the bottom plate, a horizontal channel for the horizontal portion to pass through is provided between the cover plate and the bottom plate, a vertical channel for the vertical portion to pass through is provided on the cover plate, and a baffle is installed on the cover plate. The height of the horizontal channel matches the thickness of the horizontal portion, the width of the vertical channel matches the thickness of the vertical portion, the horizontal channel and the vertical channel are matched with the horizontal portion and the vertical portion of the Y-shaped fabric respectively, and pre-bifurcated by the baffle, so that the horizontal portion and the vertical portion of the Y-shaped fabric can be automatically separated during sewing, and employees do not need to manually bifurcate, which reduces the process difficulty and the labor intensity of employees, improves work efficiency, and can ensure product quality.

[0008] Preferably, a limiting groove for limiting the vertical portion is installed on the vertical channel. The setting of the limiting groove can further control the separation angle between the vertical portion and the horizontal portion.

[0009] More preferably, the bottom plate is provided with a mounting plate for mounting the automatic bifurcating device on a sewing machine table, and the mounting plate is provided with a mounting hole. The automatic bifurcating device is mounted on a work surface of the sewing machine by arranging fasteners in the mounting hole.

[0010] Further preferably, the bottom plate and the cover plate have an extension extending along the Y-shaped cloth conveying direction, and the extension is located on a side of the bottom plate close to the mounting plate. By providing the extension, it can be ensured that the horizontal part close to the mounting plate will not move at will and will not affect sewing.

[0011] Preferably, the angle between the limiting groove and the horizontal plane on one side of the extension portion is 30-90°. The setting of the angle between the limiting groove and the horizontal plane keeps the angle between the vertical part and the horizontal part of the Y-shaped fabric within a suitable range for sewing operation, thereby improving sewing efficiency and product quality.

[0012] More preferably, one end of the baffle is provided with a chamfer for separating the horizontal portion and the vertical portion, and the other end of the baffle extends backward to the end of the vertical channel. The chamfer serves to pre-divide the vertical portion and the horizontal portion of the Y-shaped fabric and guide the horizontal portion into the horizontal channel and the vertical portion into the vertical channel, otherwise the vertical portion will also enter the horizontal channel.

[0013] Further preferably, the chamfered end and the vertical channel are located in the same vertical plane. The chamfered end and the vertical channel are located in the same vertical plane and the chamfered end is located near the connection between the horizontal channel and the vertical channel, so as to pre-branch and guide the vertical part and the horizontal part of the Y-shaped cloth to prevent the vertical part from entering the horizontal channel.

[0014] More preferably, the limiting groove is a U-shaped bending portion invertedly arranged on the vertical channel. The inverted U-shaped bending portion plays a role in limiting the vertical portion.

[0015] Further preferably, the baffle is connected to the U-shaped bending portion, and the extension plane of the baffle is parallel to the extension plane of the limiting groove. The mutual parallelism of the extension planes also further ensures the separation angle between the vertical part and the horizontal part of the Y-shaped cloth for better sewing operation.

[0016] The present invention also provides a sewing machine, comprising the automatic bifurcating device suitable for Y-shaped cloth as described above.

[0017] Due to the adoption of the above technical scheme, compared with the prior art, the benefits of the present invention are as follows: the automatic bifurcation device suitable for Y-shaped cloth of the present invention has a reasonable structural design, and can effectively automatically bifurcate the Y-shaped cloth by setting a horizontal channel, a vertical channel and a baffle. The automatic bifurcation device is first positioned on the wooden board of the sewing machine for installation, and then the Y-shaped cloth is fed into the bifurcation inlet and then pulled out from the bifurcation outlet and fed into the sewing machine for sewing, which can prevent the size of the Y-shaped cloth from deviating, reduces the process difficulty and the labor intensity of employees, improves work efficiency, and can ensure the quality of the product. It is particularly suitable for the occasion of two-point sewing of Y-shaped elastic bands. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A three-dimensional diagram of the automatic bifurcation device for Y-shaped fabrics from a first viewing angle according to a preferred embodiment of the present invention;

[0020] Figure 2 A stereoscopic diagram of the automatic bifurcation device for Y-shaped fabrics from a second viewing angle according to a preferred embodiment of the present invention;

[0021] Figure 3 It is a front view of the automatic bifurcation device for Y-shaped cloth according to a preferred embodiment of the present invention;

[0022] Figure 4 A three-dimensional diagram of the automatic bifurcation device for Y-shaped fabrics from a third viewing angle according to a preferred embodiment of the present invention;

[0023] Figure 5 A stereoscopic diagram of the automatic bifurcating device for Y-shaped fabrics in a fourth viewing angle according to a preferred embodiment of the present invention;

[0024] Figure 6 A stereoscopic view of the automatic bifurcating device for Y-shaped fabrics from a fifth viewing angle according to a preferred embodiment of the present invention;

[0025] Among them: Y-shaped cloth-1, horizontal part-11, vertical part-12, bottom plate-2, cover plate-3, baffle-4, chamfer-41, horizontal channel-51, vertical channel-52, limiting groove-61, U-shaped bending part-62, extension part-7, mounting plate-8, mounting hole-81. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] See attached Figure 1-6 The present embodiment provides a sewing machine, comprising an automatic bifurcation device suitable for a Y-shaped fabric 1, a sewing device for sewing, and a sewing machine table supporting the sewing device, wherein the sewing machine table has a work surface. The Y-shaped fabric 1 has a horizontal portion 11 and a vertical portion 12 connected to the horizontal portion 11.

[0028] The automatic bifurcation device for Y-shaped fabric 1 of this embodiment comprises a bottom plate 2 located below and a cover plate 3 located above the bottom plate 2, wherein the area of ​​the bottom plate 2 is larger than that of the cover plate 3. A horizontal channel 51 is provided between the cover plate 3 and the bottom plate 2 for the horizontal portion 11 to pass through, a vertical channel 52 is provided on the cover plate 3 for the vertical portion 12 to pass through, and a baffle 4 is installed on the cover plate 3. The height of the horizontal channel 51 is greater than or equal to the thickness of the horizontal portion 11, and the width of the vertical channel 52 is greater than or equal to the thickness of the vertical portion 12. The horizontal channel 51 and the vertical channel 52 are matched with the horizontal portion 11 and the vertical portion 12 of the Y-shaped fabric 1 respectively, and pre-bifurcated by the baffle 4, so that the horizontal portion 11 and the vertical portion 12 of the Y-shaped fabric 1 can be automatically separated during sewing, and the employees do not need to manually bifurcate, which reduces the process difficulty and the labor intensity of the employees, improves the work efficiency, and can ensure the quality of the product.

[0029] The bottom plate 2 is provided with a mounting plate 8 for mounting the automatic bifurcation device on the sewing machine table, and the mounting plate 8 is provided with a mounting hole 81. By arranging fasteners such as bolt and nut assemblies in the mounting hole 81, the automatic bifurcation device is mounted on the work surface of the sewing machine.

[0030] The bottom plate 2 and the cover plate 3 have an extension portion 7 extending along the conveying direction of the Y-shaped fabric 1, and the extension portion 7 is located on the side of the bottom plate 2 and the cover plate 3 close to the mounting plate 8, and the extension portion 7 is arranged perpendicular to the mounting portion 8. By providing the extension portion 7, it can be ensured that the horizontal portion 11 close to the side of the mounting plate 8 will not move at will, and will not affect sewing.

[0031] In this embodiment, a limiting groove 61 is installed on the vertical channel 52 for limiting the vertical portion 12. The setting of the limiting groove 61 can further control the separation angle between the vertical portion 12 and the horizontal portion 11.

[0032] The included angle between the limiting groove 61 and the horizontal plane on one side of the extension portion 7 is 30-90°. In this embodiment, the included angle between the limiting groove 61 and the horizontal plane on one side of the extension portion 7 is preferably 60°. The setting of the included angle between the limiting groove 61 and the horizontal plane keeps the included angle between the vertical portion 12 and the horizontal portion 11 of the Y-shaped fabric 1 within a suitable range for sewing operation, so as to improve sewing efficiency and product quality.

[0033] In this embodiment, the limiting groove 61 is a U-shaped bending portion 62 invertedly arranged on the vertical channel 52. The inverted U-shaped bending portion 62 plays a role in limiting the vertical portion 12.

[0034] The baffle plate 4 is connected to the U-shaped bending portion 62, and the extension plane of the baffle plate 4 is parallel to the extension plane of the limiting groove 61. The parallelism between the extension planes of the baffle plate 4 and the limiting groove 61 also further ensures the separation angle between the vertical portion 12 and the horizontal portion 11 of the Y-shaped cloth 1 for better sewing operation.

[0035] One end of the baffle 4 is provided with a chamfer 41 for separating the horizontal portion 11 and the vertical portion 12, and the other end of the baffle 4 extends backward to the end of the vertical channel 52. The function of the chamfer 41 is to pre-bifurcate the vertical portion 12 and the horizontal portion 11 of the Y-shaped fabric 1, and guide the horizontal portion 11 to enter the horizontal channel 51, and the vertical portion 12 to enter the vertical channel 52, otherwise the vertical portion 12 will also enter the horizontal channel 51. The other end of the baffle 4 extends backward to the end of the vertical channel 52 in order to continuously separate the horizontal portion 11 from the vertical portion 12 and maintain a certain angle, so as to prevent the angle between the vertical portion 12 and the horizontal portion 11 from becoming smaller and smaller after leaving the limiting groove 61, thereby affecting the subsequent sewing operation. The baffle 4 in this embodiment is a metal strip with a certain thickness, and the two ends of the metal strip are arc-shaped to prevent damage to the fabric or employees. One end of the metal strip is rotated at a certain angle relative to the metal strip itself to form a chamfer 41. The chamfer 41 in this embodiment is rotated 30-60° relative to the metal strip itself.

[0036] The end of the chamfer 41 is located in the same vertical plane as the vertical channel 52. The end of the chamfer 41 is located in the same vertical plane as the vertical channel 52 and the end of the chamfer 41 is located near the connection between the horizontal channel 51 and the vertical channel 52, so as to pre-branch and guide the vertical portion 12 and the horizontal portion 11 of the Y-shaped cloth to prevent the vertical portion 12 from entering the horizontal channel 51. The cloth will be uneven at the place where the vertical portion 12 and the horizontal portion 11 are bifurcated at the chamfer 41, so the cover plate 3 is provided with a notch at this place, forming a step-like form to prevent the cloth from being stuck due to the unevenness when the cloth is bifurcated.

[0037] The working process of the automatic bifurcation device for Y-shaped fabrics of this embodiment is briefly described below:

[0038] The automatic bifurcation device of the Y-shaped fabric 1 of this embodiment has a bifurcation inlet and a bifurcation outlet, wherein the side close to the chamfer 41 is the bifurcation inlet, and the side close to the extension portion 7 is the bifurcation outlet. When sewing the Y-shaped fabric 1, the horizontal portion 11 and the vertical portion 12 through which the Y-shaped fabric 1 passes are first bifurcated through the chamfer 41, and the bifurcated horizontal portion 11 is inserted into the horizontal channel 51, and the vertical portion 12 is inserted into the vertical channel 52 and the limiting groove 61. While the Y-shaped fabric 1 is inserted, the chamfer 41 continuously pre-bifurcates the subsequent un-bifurcated Y-shaped fabric 1, and the pre-bifurcated Y-shaped fabric 1 continuously enters the horizontal channel 51 and the vertical channel 52.

[0039] The horizontal portion 11 of the Y-shaped fabric 1 moves forward in the horizontal channel 51, and the vertical portion 12 moves forward in the vertical channel 52. After the vertical portion 12 passes through the limiting groove 61, it is blocked by the baffle 4 to ensure that the angle between the vertical portion 12 and the horizontal portion 11 is maintained within a certain range, so as to facilitate the subsequent sewing operation. When the horizontal portion 11 and the vertical portion 12 of the Y-shaped fabric 1 are separated from the horizontal channel 51 and the vertical channel 52 respectively, that is, the Y-shaped fabric 1 is separated from the bifurcated outlet and directly performs the next sewing operation.

[0040] The automatic bifurcating device suitable for Y-shaped cloth of the present invention has a reasonable structural design. By arranging a horizontal channel, a vertical channel and a baffle, the Y-shaped cloth can be automatically bifurcated effectively. After the automatic bifurcating device is positioned on a wooden board of a sewing machine for installation, the Y-shaped cloth is fed into a bifurcating inlet and then pulled out from a bifurcating outlet and fed into a sewing machine for sewing. This can prevent the size of the Y-shaped cloth from deviating, reduces the process difficulty and the labor intensity of employees, improves the work efficiency, and can ensure the quality of the product. The automatic bifurcating device is particularly suitable for the occasion of two-point sewing of a Y-shaped elastic band.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic bifurcation device suitable for a Y-shaped cloth, wherein the Y-shaped cloth has a horizontal portion and a vertical portion connected to the horizontal portion, It is characterized in that The automatic bifurcation device comprises a bottom plate located below and a cover plate located above the bottom plate, a horizontal channel for the horizontal part to pass through is provided between the cover plate and the bottom plate, a vertical channel for the vertical part to pass through is provided on the cover plate, and a baffle is installed on the cover plate. A limiting groove for limiting the vertical part is installed on the vertical channel; a chamfer for separating the horizontal part and the vertical part is provided at one end of the baffle, and the other end of the baffle extends backward to the end of the vertical channel; one end of the baffle is rotated at a certain angle relative to the baffle itself to form the chamfer; the end of the chamfer and the vertical channel are located in the same vertical plane; the limiting groove is an inverted U-shaped bending part arranged on the vertical channel; the baffle is connected to the U-shaped bending part, and the extension plane of the baffle is parallel to the extension plane of the limiting groove.

2. The automatic bifurcation device for Y-shaped fabrics according to claim 1, It is characterized in that The bottom plate is provided with a mounting plate for mounting the automatic bifurcating device on a sewing machine table, and the mounting plate is provided with mounting holes.

3. The automatic bifurcation device for Y-shaped fabrics according to claim 2, It is characterized in that The bottom plate and the cover plate have an extension portion extending along the Y-shaped cloth conveying direction, and the extension portion is located on a side of the bottom plate close to the mounting plate.

4. The automatic bifurcation device for Y-shaped fabrics according to claim 3, It is characterized in that The included angle between the limiting groove and a horizontal plane on one side of the extension portion is 30-90°.

5. A sewing machine, It is characterized in that The sewing machine comprises an automatic bifurcation device suitable for Y-shaped fabrics as described in any one of claims 1 to 4.

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