A device for opening and closing a zipper and an automatic fly opening machine

Abstract

This invention discloses a zipper placement device and an automatic placket opening machine. The zipper placement device includes a lifting base, a zipper placement plate, a placket placement assembly, and a driving component. The lifting base is used to connect to the base plate of a sewing machine. The zipper placement plate is rotatably connected to the lifting base via a rotating shaft. The bottom of the zipper placement plate has a first guide surface and a receiving groove for placing the zipper. The placket placement assembly includes a placket placement seat and a placket plate connected to the placket placement seat. The placket plate is used to hold the placket. The top of the placket placement seat near the zipper placement plate has a second guide surface. The driving component is connected to the placket placement seat and is used to drive the placket placement seat to move towards the zipper placement plate, causing the second guide surface to contact the first guide surface, thereby pushing the zipper placement plate to rotate around the axis of the rotating shaft and move it above the placket placement assembly. This effectively improves the problems of low operating efficiency and high labor intensity of operators caused by manual sewing in the prior art.

Description

Technical Field

[0001] This invention relates to the field of clothing technology, and in particular to a zipper release device and an automatic placket opening machine. Background Technology

[0002] Pants are a type of clothing, typically featuring a fly and a zipper. The zipper stitching process at the fly is relatively complex, requiring frequent folding to form the trouser panels, and the panel positions need to be adjusted according to the zipper's location to create a neat seam.

[0003] In the current technology, zippers for trouser fly are sewn manually. This requires a high level of experience from the operator, who needs to frequently calibrate and position them based on experience and technique. The zipper sewing precision is low, making it difficult to form beautiful stitches. The operation is inefficient, the operator's labor intensity is high, and the probability of producing defective products is relatively high.

[0004] Therefore, how to effectively improve the problems of low operational efficiency, high labor intensity of operators, and high probability of defective products caused by manual sewing in the existing technology is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a zipper release device and an automatic placket opening machine, which can effectively improve the problems of low operating efficiency, high labor intensity of operators, and high probability of defective products caused by manual sewing in the prior art.

[0006] To achieve the above objectives, the present invention provides a zipper release device, comprising:

[0007] Lift the base to connect the base plate of the sewing machine;

[0008] A zipper placement plate is rotatably connected to a lifting base via a rotating shaft. The bottom of the zipper placement plate is provided with a first guide surface and a receiving groove for placing zippers.

[0009] The lining placement assembly includes a lining placement seat and a lining plate connected to the lining placement seat. The lining plate is used to hold the lining. A second guide surface is provided at the top of one end of the lining placement seat near the zipper placement plate.

[0010] A drive unit, connected to the inner placket placement seat, is used to drive the inner placket placement seat toward the zipper placement plate and make the second guide surface contact the first guide surface, so as to push the zipper placement plate to rotate around the axis of the rotation shaft and move it above the inner placket placement assembly.

[0011] In one possible implementation, the first guide surface is located at one end of the zipper placement plate near the inner placket placement seat. The first guide surface includes a first contact end near the inner placket placement seat and a second contact end away from the inner placket placement seat. The second guide surface includes a first push end near the inner placket placement seat and a second push end away from the inner placket placement seat. The height of the first contact end is higher than the height of the second contact end, and the height of the second push end is higher than the height of the first push end.

[0012] In one possible implementation, the height of the first contact end is higher than the height of the first pushing end and lower than the height of the second pushing end; and / or,

[0013] The height of the second contact end is higher than the height of the first pushing end but lower than the height of the second pushing end.

[0014] In one possible implementation, the first guide surface and the second guide surface are parallel to each other.

[0015] In one possible implementation, the bottom of the zipper placement plate is further provided with a first plane connected to the first guide surface, and the top of the lining placement seat is further provided with a second plane connected to the second guide surface. The second plane is used to fit against the first plane after the zipper placement plate moves above the lining placement seat to support the zipper placement plate.

[0016] In one possible implementation, the zipper placement plate and the rotating shaft are connected by a connecting assembly, which includes a lifting fixing plate, a fixing seat connected to the lifting fixing plate, and a rotating seat connected to the fixing seat. The rotating seat is connected to the zipper placement plate, and the lifting fixing plate is connected to the rotating shaft. The lifting fixing plate can rotate relative to the lifting base about the axis of the rotating shaft, so as to drive the fixing seat, the rotating seat and the zipper placement plate to rotate synchronously about the axis of the rotating shaft.

[0017] In one possible implementation, the zipper placement plate is further provided with a sewing clearance groove adjacent to the receiving groove for the needle to sew the zipper to the inner placket located below the zipper.

[0018] In one possible implementation, the lining placement assembly is also connected to the base plate via a guide assembly, which includes a slide rail and a slider that can slide relative to the slide rail. One of the slide rail and the slider is used to connect to the base plate, and the other is used to connect to the lining placement seat for the lining placement seat to move along the extension direction of the slide rail.

[0019] In one possible implementation, the extension direction of the slide rail is parallel to or collinear with the extension direction of the rotation shaft.

[0020] Based on the above, this application also provides an automatic placket opening machine, including a base plate and a zipper release device, with a lifting base connected to the base plate.

[0021] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects: the zipper placement plate is provided with a receiving groove for placing the zipper, and the zipper's position is effectively ensured by the cooperation between the zipper and the receiving groove; the lining placement assembly includes a lining placement seat and a lining plate connected to the lining placement seat and used to clamp the lining, the lining plate can effectively ensure the lining's position is stable; the bottom of the zipper placement plate is provided with a first guide surface, and the top of the end of the lining placement seat near the zipper placement plate is provided with a second guide surface; the driving member is connected to the lining placement seat and used to drive the lining placement seat to move toward the zipper placement plate. The second guide surface contacts the first guide surface to push the zipper placement plate to rotate around the axis of the rotation shaft and move it above the lining plate placement assembly for the sewing machine to sew the zipper and lining plate. The design of the first and second guide surfaces can reduce the distance between the zipper placement plate and the lining plate, which is beneficial for the zipper placement plate and the lining plate to be closer to the sewing table as a whole, so as to ensure sewing quality. The zipper and lining plate are sewn through a mechanized process, which can effectively improve the problems of low operation efficiency, high labor intensity of operators and high probability of defective products caused by manual sewing in the existing technology. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the zipper release device provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the second guide surface provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the first guide surface provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection between the zipper placement plate and the lifting base provided in an embodiment of the present invention;

[0027] Figure 5 This is a partially enlarged view of the connection between the zipper placement plate and the lifting base provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the zipper placement plate provided in an embodiment of the present invention;

[0029] Figure 7This is a schematic diagram of the zipper placement plate provided in an embodiment of the present invention from another perspective;

[0030] Figure 8 This is a schematic diagram of the structure of the reinforcing plate provided in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the rotating seat provided in an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the structure of the fixing base provided in an embodiment of the present invention;

[0033] Figure 11 This is a schematic diagram of the structure of the lifting fixing plate provided in an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the limiting member provided in an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the pin structure provided in an embodiment of the present invention.

[0036] in:

[0037] 100-Zipper placement plate, 110-Accommodation groove, 111-Zipper tail clearance groove, 112-First zipper tooth slot, 113-First zipper head clearance position, 120-Sewing clearance groove, 130-First side, 140-Second side, 150-First plane, 160-Clearance surface, 170-Guide slope, 180-Second mounting hole, 190-First guide surface, 191-First contact end, 192-Second contact end;

[0038] 200 - Reinforcing plate, 210 - First clearance hole, 220 - Second clearance hole;

[0039] 300-base plate;

[0040] 400-Fixed base, 410-First connecting part, 411-First through hole, 412-Limiting hole, 420-Abutting surface;

[0041] 500-Rotating seat, 510-Second connecting part, 511-Second through hole, 512-Fixing hole, 520-Third connecting part, 521-First mounting hole, 530-Limiting member, 531-Housing shell, 532-Limiting protrusion;

[0042] 600-pin;

[0043] 700 - Lift the base;

[0044] 800 - Lift the fixing plate; 810 - Connecting hole;

[0045] 900 - Adjustment component;

[0046] 1000 - Inner flap placement seat, 1010 - Second guide surface, 1011 - First pushing end, 1012 - Second pushing end, 1020 - Second plane;

[0047] 1100 - Inner flap;

[0048] 1200-Drive component;

[0049] 1300-slide rail;

[0050] 1400 - Slider. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] In the description of this invention, it should be understood that the terms "upper", "lower", "inner", "outer", "top" and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this invention.

[0054] The purpose of this invention is to provide a zipper release device and an automatic placket opening machine, which can effectively improve the problems of low operating efficiency, high labor intensity of operators, and high probability of defective products caused by manual sewing in the prior art.

[0055] Please see Figure 1 , Figure 4 , Figure 5 and Figure 6To achieve the above objectives, the present invention provides a zipper placement device, including a lifting base 700, a zipper placement plate 100, a lining placement assembly, and a driving component 1200. The lifting base 700 is used to connect to the base plate 300 of a sewing machine. The zipper placement plate 100 is rotatably connected to the lifting base 700 via a rotating shaft. The bottom of the zipper placement plate 100 is provided with a first guide surface 190 and a receiving groove 110 for placing a zipper. The receiving groove 110 includes a zipper tail clearance groove 111, a first zipper tooth slot 112, and a first zipper head clearance position 113, which are sequentially connected along the length direction of the zipper placement plate 100. The zipper tail clearance groove 111 is used to position the tail of the zipper, so that the zipper teeth are laid along the length direction of the zipper placement plate 100, and the zipper teeth are engaged with the first zipper tooth slot 112, and the zipper head is located in the first zipper head clearance position 113. By setting the receiving groove 110 to a structure suitable for accurate zipper positioning, the zipper position is made accurate. After aligning the tail of the zipper with the zipper tail clearance groove 111, the zipper is laid along the length of the zipper placement plate 100 and at least part of the zipper teeth are engaged in the first zipper tooth groove 112 to fix the zipper position. The first zipper head clearance position 113 is used to accommodate the zipper head, making the zipper flat and able to fix the zipper relative to the zipper placement plate 100. The engagement between the first zipper tooth groove 112 and the zipper teeth is achieved by the zipper teeth engaging in the first zipper tooth groove 112, where the teeth have a certain outward tension and abut against the inner walls on both sides of the first zipper tooth groove 112 to restrict the movement of the zipper.

[0056] Furthermore, a second zipper tooth groove and a second zipper head clearance position can be added on the side of the first zipper head clearance position 113 away from the first zipper tooth groove 112, and the second zipper tooth groove is located between the first zipper head clearance position 113 and the second zipper head clearance position. In this way, the zipper placement plate 100 can be used for the installation and positioning of longer zippers. Specifically, after aligning the tail of the long zipper with the zipper tail clearance groove 111, the zipper teeth are inserted into the first zipper tooth groove 112 and the second zipper tooth groove, and the zipper head is accommodated in the second zipper head clearance position. The zipper placement plate 100 can adapt to the fixing of zippers of different lengths according to actual needs, thereby improving the versatility of the zipper placement plate 100.

[0057] The lining placement assembly includes a lining placement seat 1000 and a lining plate 1100 connected to the lining placement seat 1000. The lining plate 1100 is used to hold the lining. The top of one end of the lining placement seat 1000 near the zipper placement plate 100 is provided with a second guide surface 1010. A drive member 1200 is connected to the lining placement seat 1000. The drive member 1200 is used to drive the lining placement seat 1000 to move toward the zipper placement plate 100 and make the second guide surface 1010 contact the first guide surface 190, so as to push the zipper placement plate 100 to rotate around the axis of the rotation shaft and move above the lining placement assembly.

[0058] Please see Figure 7 and Figure 8 The zipper placement plate 100 also has a sewing clearance groove 120 adjacent to the receiving groove 110, for the machine needle to sew the zipper to the inner placket located below the zipper. Specifically, the zipper placement plate 100 includes a placement plate body and a reinforcing plate 200. The placement plate body has the aforementioned receiving groove 110 and the aforementioned sewing clearance groove 120. The reinforcing plate 200 is connected to the second side 140 of the placement plate body. The reinforcing plate 200 and the placement plate body can be fixed by screws. The reinforcing plate 200 has a first clearance hole 210 corresponding to the first zipper head clearance position 113 and a second clearance hole 220 corresponding to the second zipper head clearance position. The placement of the second clearance hole 220 prevents interference between the reinforcing plate 200 and the zipper pull. The reinforcing plate 200 also blocks the first and second zipper tooth slots 112 and 112, allowing the zipper to be inserted from the first side 130 of the placement plate body, which is opposite to the second side 140. Before the zipper placement plate 100 contacts the inner placket placement seat 1000, when the zipper placement plate 100 is in working condition, the reinforcing plate 200 is located above the placement plate body, and the second side 140 of the placement plate body is parallel to the base plate 300. In its working state, the zipper placement plate 100 is used by a sewing machine to sew the zipper. The sewing clearance groove 120 runs parallel to the length of the zipper placement plate 100, allowing the machine needle to sew the zipper placed on the zipper placement plate 100 onto the fabric.

[0059] The zipper placement plate 100 is provided with a receiving groove 110 for placing zippers. The zipper's position is effectively ensured by its cooperation with the receiving groove 110. The placket placement assembly includes a placket placement seat 1000 and a placket plate 1100 connected to the placket placement seat 1000 and used to clamp the placket. The placket plate 1100 effectively ensures the placket's position. The bottom of the zipper placement plate 100 is provided with a first guide surface 190, and the top of the placket placement seat 1000 near the zipper placement plate 100 is provided with a second guide surface 1010. A driving member 1200 is connected to the placket placement seat 1000 and is used to drive the placket placement seat 1000 to move toward the zipper placement plate 100, thereby... The second guide surface 1010 contacts the first guide surface 190 to push the zipper placement plate 100 to rotate around the axis of the rotation shaft and move it above the inner placket placement assembly for the sewing machine to sew the zipper and inner placket. The design of the first guide surface 190 and the second guide surface 1010 can reduce the distance between the zipper placement plate 100 and the inner placket plate 1100, which is beneficial for the zipper placement plate 100 and the inner placket plate 1100 to be closer to the sewing table as a whole, so as to ensure sewing quality. The zipper and inner placket sewing is realized through a mechanized process, which can effectively improve the problems of low operation efficiency, high labor intensity of operators and high probability of defective products caused by manual sewing in the prior art.

[0060] It should be noted that the zipper placement plate 100 also has a clearance surface 160. The clearance surface 160 is located at one end of the zipper placement plate 100 along its own length direction, near the clearance groove 111 at the zipper tail. The clearance surface 160 can be configured such that its projection along the length direction of the zipper placement plate 100 overlaps with the projection of the inner wall of the clearance groove 111 at the zipper tail along its own length direction. The clearance surface 160 can be formed by cutting one end of the zipper placement plate 100 along its own length direction near the clearance groove 111 at the zipper tail, so that the fabric strip of the zipper is suspended, making it easier for the entire zipper to be removed from the zipper placement plate 100. The zipper tail clearance groove 111 is provided with a guide slope 170. The guide slope 170 is located at one end of the zipper tail clearance groove 111 away from the first zipper tooth groove 112. The guide slope 170 is set at an angle to the length direction of the zipper placement plate 100. It is used to guide the zipper tail to move into the zipper tail clearance groove 111, making it easier for the zipper tail to slide into the zipper tail clearance groove 111.

[0061] Please see Figure 2 and Figure 3In one possible implementation, the first guide surface 190 is located at one end of the zipper placement plate 100 near the inner placket placement seat 1000. The first guide surface 190 includes a first contact end 191 near the inner placket placement seat 1000 and a second contact end 192 away from the inner placket placement seat 1000. The second guide surface 1010 includes a first push end 1011 near the inner placket placement seat 1000 and a second push end 1012 away from the inner placket placement seat 1000. The first contact end 191 and the second contact end 192 are set at different heights, with the height of the first contact end 191 being higher than that of the second contact end 192. The first push end 1011 and the second push end 1012 are set at different heights, with the height of the second push end 1012 being higher than that of the first push end 1011. This allows the second guide surface 1010 to guide the upward movement of the zipper placement plate 100 after the first guide surface 190 comes into contact with the second guide surface 1010 during the movement of the inner flap placement seat 100 toward the zipper placement plate 100.

[0062] Wherein, the height of the first contact end 191 is higher than the height of the first push end 1011 and lower than the height of the second push end 1012; and / or, the height of the second contact end 192 is higher than the height of the first push end 1011 and lower than the height of the second push end 1012. That is, there are three scenarios: First, the heights of both the first contact end 191 and the second contact end 192 are higher than the height of the first pushing end 1011 and lower than the height of the second pushing end 1012. Either the first contact end 191 or the second contact end 192, upon contacting the second guide surface 1010, can cause the zipper placement plate 100 to move upward under the guidance of the second guide surface 1010. Second, only the height of the first contact end 191 is higher than the height of the first pushing end 1011 and lower than the height of the second pushing end 1012, while the height of the second contact end 192 should be lower than the height of the first pushing end 1011. The first contact end 191, upon contacting the second guide surface 1010, can cause the zipper placement plate 100 to move upward under the guidance of the second guide surface 1010. Third, only the height of the second contact end 192 is higher than the height of the first pushing end 1011. The height of the first contact end 191 should be lower than that of the second push end 1012, while the height of the second contact end 192 should be higher than that of the second push end 1012. After the second contact end 192 contacts the second guide surface 1010, the zipper placement plate 100 can move upward under the guidance of the second guide surface 1010. The height of the first contact end 191 and the second contact end 192 relative to the first push end 1011 and the second push end 1012 can be adjusted according to different actual needs to achieve the above purpose. The first guide surface 190 and the second guide surface 1010 can be set to be parallel to each other, with the first guide surface 190 and the second guide surface 1010 having the same angle with the horizontal plane and tilting in the same direction relative to the horizontal plane. This can effectively reduce the collision when the first guide surface 190 and the second guide surface 1010 contact, which is beneficial to improving the service life of the inner flap placement seat 1000 and the zipper placement plate 100.

[0063] In one possible implementation, the bottom of the zipper placement plate 100 is further provided with a first plane 150 connected to the first guide surface 190, and the top of the inner placket placement seat 1000 is further provided with a second plane 1020 connected to the second guide surface 1010. The second plane 1020 is used to fit against the first plane 150 after the zipper placement plate 100 moves above the inner placket placement seat 1000 to support the zipper placement plate 100. After the zipper placement plate 100 moves upward, it tends to move downward and return to its original position under its own weight. By providing a second plane 1020 connected to the second guide surface 1010 at the top of the inner placket placement seat 1000, the zipper placement plate 100, which tends to move downward and return to its original position, can be supported. At the same time, a first plane 150 connected to the first guide surface 190 is provided at the bottom of the zipper placement plate 100 to fit with the second plane 1020, thus maintaining the stability of the zipper placement plate 100. The fit between the first plane 150 and the second plane 1020 can also reduce the distance between the zipper placement plate 100 and the inner placket 1100, which helps the zipper placement plate 100 and the inner placket 1100 to be closer to the sewing table as a whole, thus ensuring sewing quality.

[0064] Please see Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 In one possible implementation, the zipper placement plate 100 and the rotating shaft are connected by a connecting assembly, which includes a lifting fixing plate 800, a fixing seat 400 connected to the lifting fixing plate 800, and a rotating seat 500 connected to the fixing seat 400. The rotating seat 500 is connected to the zipper placement plate 100, and the lifting fixing plate 800 is connected to the rotating shaft. The lifting fixing plate 800 is capable of rotating relative to the lifting base 700 about the axis of the rotating shaft, so as to drive the fixing seat 400, the rotating seat 500 and the zipper placement plate 100 to rotate synchronously about the axis of the rotating shaft.

[0065] It should be noted that the rotating seat 500 and the fixed seat 400 are rotatably connected by a pin 600. The fixed seat 400 is provided with a limiting hole 412, and the rotating seat 500 is provided with a limiting member 530. The zipper placement plate 100 is connected to the rotating seat 500. When a zipper needs to be placed, the rotating seat 500 is rotated relative to the fixed seat 400 until the reinforcing plate 200 is located below the placement plate body, and the second side 140 of the placement plate body is parallel to the bottom plate 300, so that the inlet of the receiving groove 110 faces upward, so as to facilitate the matching of the zipper with the receiving groove 110. When the zipper placement plate 100 is in working condition, it can rotate around the pin 600 until the second side 140 is parallel to the base plate 300 and the inlet of the receiving groove 110 faces downward. The limiting member 530 is engaged with the limiting hole 412 to stabilize the zipper placement plate 100 in working condition, thereby stabilizing the position of the zipper. This effectively improves the drawbacks of calibrating and positioning the zipper by relying on experience and manual methods, and can effectively avoid problems such as low operating efficiency, high labor intensity of operators, and a high probability of producing defective products.

[0066] The limiting member 530 includes a housing 531, an elastic member, and a limiting protrusion 532. The housing 531 has a cavity and a first opening communicating with one side of the cavity. The elastic member and the limiting protrusion 532 are located inside the cavity. One end of the elastic member abuts against the inner wall of the cavity on the side away from the first opening, and the other end of the elastic member abuts against the limiting protrusion 532 to drive the limiting protrusion 532 to partially protrude from the first opening. The elastic member can be a spring. The cross-sectional dimension of the first opening perpendicular to the driving direction of the elastic member is smaller than the maximum cross-sectional dimension of the limiting protrusion 532 perpendicular to the driving direction of the elastic member, so as to prevent the limiting protrusion 532 from completely dislodging from the cavity. The rotating seat 500 is provided with a fixing hole 512, which has an internal thread. The housing 531 has an external thread that is adapted to the internal thread in the circumferential direction, so that the housing 531 can be detachably screwed into the rotating seat 500 and the first opening faces the fixing seat 400. That is, the end of the housing 531 with the first opening is first screwed into the fixing hole 512, and then the rotation continues until the first opening reaches a preset position, so that it can be used for the subsequent engagement of the limiting protrusion 532 and the limiting hole 412.

[0067] Furthermore, the fixed base 400 is provided with a first connecting part 410, and the rotating base 500 includes a second connecting part 510 and a third connecting part 520 connected to each other. The second connecting part 510 is used to rotatably connect with the first connecting part 410. Specifically, the first connecting part 410 is provided with a first through hole 411, and the second connecting part 510 is provided with a second through hole 511 corresponding to the first through hole 411. The pin 600 passes through the first through hole 411 and the second through hole 511 so that the rotating base 500 can rotate relative to the fixed base 400. The third connecting part 520 is used to fix with the zipper placement plate 100. Specifically, the third connecting part 520 is provided with a first mounting hole 521, and the zipper placement plate 100 is provided with a second mounting hole 180. The connector is connected to the first mounting hole 521 and the second mounting hole 180 so that the rotating base 500 and the zipper placement plate 100 are relatively fixed. The first mounting hole 521 and the second mounting hole 180 can be threaded holes, and the connecting parts can be screws. The number of the first mounting hole 521 and the second mounting hole 180 is set to two, which facilitates the installation and removal of the zipper placement plate 100 and the rotating seat 500.

[0068] Two second connecting portions 510 are provided, and the two second connecting portions 510 protrude from the side of the third connecting portion 520 away from the zipper placement plate 100. The two second connecting portions 510 are spaced apart to form a clearance groove, which is used to accommodate part of the first connecting portion 410. The clearance groove forms a rotation space for the rotating seat 500 relative to the fixed seat 400 to avoid interference between the movement of the rotating seat 500 and the fixed seat 400. The limiting member 530 is connected to the second connecting portion 510, and the limiting member 530 corresponds to the second connecting portion 510 one by one. The axis of the limiting hole 412 is parallel to the axis of the pin 600. The fixed seat 400 is also provided with an abutment surface 420, which is located at both ends of the limiting hole 412 in its own axial direction. The abutment surface 420 is used to abut against the portion of the limiting protrusion 532 protruding from the first opening. Two limiting members 530 are respectively engaged with the two ends of the limiting hole 412 to restrict the relative rotation of the rotating seat 500 and the fixed seat 400, ensuring that the zipper placement plate 100 can maintain its working state. Preferably, the limiting protrusion 532 is configured as a spherical structure, and the abutment surface 420 is an annular curved surface adapted to the limiting protrusion 532. The spherical structure facilitates the limiting protrusion 532 to contact with other components and be forcefully housed in the cavity. At the same time, when it moves to the position of the limiting hole 412, it extends out under the drive of the elastic member to fit tightly with the annular curved surface.

[0069] The system also includes a leveling assembly for adjusting the angle between the lifting base 700 and the lifting fixing plate 800. The leveling assembly includes a connecting hole 810 and an adjusting member 900. The connecting hole 810 is located in the lifting fixing plate 800. The adjusting member 900 passes through the connecting hole 810 and is threadedly connected to it. One end of the adjusting member 900 facing the lifting base 700 has an abutment for abutting against the lifting base 700 to adjust the angle between the lifting fixing plate 800 and the base plate 300. When the limiting member 530 engages with the limiting hole 412, the first side 130 of the zipper placement plate 100 is parallel to the base plate 300. By rotating the adjusting member 900, the lifting fixing plate 800 can rotate relative to the lifting base 700 to adjust the angle between the lifting fixing plate 800 and the horizontal plane. This allows adjustment of the angle between the zipper placement plate 100 in its working state and the horizontal plane until the zipper placement plate 100 is parallel to the base plate 300.

[0070] In one possible implementation, the drive element 1200 may be a cylinder, and the inner flap placement assembly is also connected to the base plate 300 via a guide assembly. The guide assembly includes a slide rail 1300 and a slider 1400 that can slide relative to the slide rail 1300. The extension direction of the slide rail 1300 is parallel or collinear with the extension direction of the rotation axis. One of the slide rail 1300 and the slider 1400 is used to connect to the base plate 300, and the other is used to connect to the inner flap placement seat 1000, for the inner flap placement seat 1000 to move along the extension direction of the slide rail 1300. Furthermore, when the slide rail 1300 is connected to the base plate 300, the drive member 1200 is also connected to the slide rail 1300; when the slider 1400 is connected to the base plate 300, the drive member 1200 is also connected to the slider 1400. The drive member 1200 drives the slide rail 1300 and the slider 1400 connected to the base plate 300, so that the inner placket placement seat 1000 and the inner placket plate 1100 move synchronously along the extension direction of the slide rail 1300, so that the second guide surface 1010 contacts the first guide surface 190, thereby driving the zipper placement plate 100 to move up to the top of the inner placket placement assembly.

[0071] Based on the above, this application also provides an automatic placket opening machine, including a base plate 300 and a zipper placement device, with a lifting base 700 connected to the base plate 300. The connection between the lifting base 700 and the base plate 300 can be direct or indirect, as long as the zipper placement plate 100 can move upward relative to the base plate 300 when it contacts the inner placket placement seat 1000. The remaining structure of the automatic placket opening machine can refer to the prior art, and will not be described in detail here.

[0072] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A zipper unloading device, characterized in that, include: Lift the base (700) to connect the base plate (300) of the sewing machine; A zipper placement plate (100) is rotatably connected to the lifting base (700) via a rotating shaft. The bottom of the zipper placement plate (100) is provided with a first guide surface (190) and a receiving groove (110) for placing zippers. The lining placement assembly includes a lining placement seat (1000) and a lining plate (1100) connected to the lining placement seat (1000). The lining plate (1100) is used to hold the lining. The lining placement seat (1000) has a second guide surface (1010) at the top of one end near the zipper placement plate (100). A drive member (1200) is connected to the inner placket holder (1000). The drive member (1200) is used to drive the inner placket holder (1000) to move toward the zipper holder (100) and make the second guide surface (1010) contact the first guide surface (190) to push the zipper holder (100) to rotate about the axis of the rotation shaft and move above the inner placket assembly.

2. The zipper release device according to claim 1, characterized in that, The first guide surface (190) is located at one end of the zipper placement plate (100) near the inner placket placement seat (1000). The first guide surface (190) includes a first contact end (191) near the inner placket placement seat (1000) and a second contact end (192) away from the inner placket placement seat (1000). The second guide surface (1010) includes a first push end (1011) near the inner placket placement seat (1000) and a second push end (1012) away from the inner placket placement seat (1000). The height of the first contact end (191) is higher than the height of the second contact end (192), and the height of the second push end (1012) is higher than the height of the first push end (1011).

3. The zipper release device according to claim 2, characterized in that, The height of the first contact end (191) is higher than the height of the first pushing end (1011) and lower than the height of the second pushing end (1012); and / or, The height of the second contact end (192) is higher than the height of the first push end (1011) and lower than the height of the second push end (1012).

4. The zipper release device according to claim 1, characterized in that, The first guide surface (190) and the second guide surface (1010) are parallel to each other.

5. The zipper release device according to any one of claims 1-4, characterized in that, The bottom of the zipper placement plate (100) is also provided with a first plane (150) connected to the first guide surface (190), and the top of the inner placket placement seat (1000) is also provided with a second plane (1020) connected to the second guide surface (1010). The second plane (1020) is used to fit against the first plane (150) after the zipper placement plate (100) moves above the inner placket placement seat (1000) to support the zipper placement plate (100).

6. The zipper release device according to any one of claims 1-4, characterized in that, The zipper placement plate (100) and the rotating shaft are connected by a connecting assembly, which includes a lifting fixing plate (800), a fixing seat (400) connected to the lifting fixing plate (800), and a rotating seat (500) connected to the fixing seat (400). The rotating seat (500) is connected to the zipper placement plate (100), and the lifting fixing plate (800) is connected to the rotating shaft. The lifting fixing plate (800) can rotate relative to the lifting base (700) around the axis of the rotating shaft, so as to drive the fixing seat (400), the rotating seat (500) and the zipper placement plate (100) to rotate synchronously around the axis of the rotating shaft.

7. The zipper release device according to any one of claims 1-4, characterized in that, The zipper placement plate (100) is also provided with a sewing clearance groove adjacent to the receiving groove (110) for the machine needle to sew the zipper to the inner placket located below the zipper.

8. The zipper release device according to any one of claims 1-4, characterized in that, The inner placket placement assembly is also connected to the base plate (300) via a guide assembly, the guide assembly including a slide rail (1300) and a slider (1400) slidable relative to the slide rail (1300). One of the slide rail (1300) and the slider (1400) is used to connect to the base plate (300), and the other is used to connect to the inner placket placement seat (1000), for the inner placket placement seat (1000) to move along the extension direction of the slide rail (1300).

9. The zipper release device according to claim 8, characterized in that, The extension direction of the slide rail (1300) is parallel or collinear with the extension direction of the rotation shaft.

10. An automatic placket opening machine, characterized in that, Includes a base plate (300) and a zipper release device as described in any one of claims 1-9, with a lifting base (700) connected to the base plate (300).

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