Zipper fixing device and fly machine

Abstract

The utility model discloses a zip fastener fixing device and door placket machine relates to sewing equipment technical field, in order to solve the problem that current zip fastener fixing mode cannot effectively fix metal zip fastener, the zip fastener fixing device includes: zip fastener placing plate is used for placing zip fastener, zip fastener pressing plate, one end is rotatably connected with zip fastener placing plate, and the other end can move along the direction close to and away from zip fastener placing plate, and zip fastener pressing plate and zip fastener placing plate are mutually attracted tightly through magnetic attraction and are used to compress zip fastener on zip fastener placing plate, set up like this, can effectively fix various types of zip fastener, improved the versatility and applicability of device.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and more specifically, to a zipper fixing device and a placket machine. Background Technology

[0002] In the garment manufacturing industry, especially in the production of trousers and other garments that require zippers, zipper sewing is a crucial step. Traditional zipper sewing equipment typically uses the method of placing the zipper directly into the slot of the zipper holder to secure it. For plastic zippers, this method works well because plastic zippers have a certain degree of flexibility and resilience, allowing them to fit well into the slot and maintain a relatively stable position during sewing, thus meeting the sewing requirements.

[0003] However, the situation is different when it comes to metal zippers. Due to the rigidity and lack of resilience of their material, metal zippers cannot be as securely fixed in the slots of a zipper holder as plastic zippers. During sewing, metal zippers are prone to slipping out of the slots or shifting, causing wrinkles, misalignment, and other problems that severely affect the quality and efficiency of the sewing process.

[0004] Therefore, how to solve the problem that existing zipper fixing methods cannot effectively fix metal zippers is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a zipper fixing device that can effectively fix various types of zippers, improve the versatility and applicability of the device, ensure that the zipper maintains a stable position during the sewing process, thereby significantly improving the sewing accuracy of the zipper and forming a more beautiful and uniform stitch.

[0006] Another objective of this invention is to provide a placket machine that includes the above-mentioned zipper fixing device, which can ensure that the zipper maintains a stable position during the sewing process, thereby significantly improving the sewing accuracy of the zipper.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A zipper fastening device, comprising:

[0009] Zipper tray, used to hold zippers;

[0010] The zipper pressure plate has one end rotatably connected to the zipper placement plate, and the other end can move in the direction of approaching and moving away from the zipper placement plate. The zipper pressure plate and the zipper placement plate are magnetically attracted to each other to press the zipper onto the zipper placement plate.

[0011] Preferably, the zipper placement plate and the zipper pressing plate are each provided with a magnet, or the zipper placement plate is provided with a magnet and the zipper pressing plate is a ferromagnetic plate.

[0012] Preferably, one end of the zipper placement plate is rotatably connected to a movable plate on the base plate of the placket machine via a connecting assembly, so that the zipper placement plate can move in directions toward and away from the base plate.

[0013] Preferably, the connecting assembly includes a lifting plate, a rotating fixed seat, and a rotating seat. One end of the lifting plate is rotatably connected to the moving plate, and the other end is connected to the rotating fixed seat. The rotating fixed seat is rotatably connected to the rotating seat via a first pin. The rotating seat is connected to the connecting end of the zipper placement plate.

[0014] Preferably, the rotating base has a U-shaped structure, with mounting holes for installing ball screws on both sides, and corresponding limiting grooves on both sides of the rotating fixed base, so that the steel balls of the ball screws can be restricted within the limiting grooves.

[0015] Preferably, the zipper pressure plate is rotatably connected to the rotating seat, and the connecting end of the zipper placement plate is provided with a clearance hole so that the connecting end of the zipper pressure plate passes through the clearance hole and can rotate in a preset direction within the clearance hole.

[0016] Preferably, the connecting end of the zipper pressure plate is connected to the fixing seat, and the fixing seat is rotatably connected to the connecting boss of the rotating seat through the second pin. The second pin is provided with a retaining ring for limiting the fixing seat.

[0017] Preferably, the zipper placement plate is provided with a zipper head avoidance hole, a zipper tail avoidance hole, a zipper tooth groove, and a first sewing avoidance hole. The zipper tooth groove and the first sewing avoidance hole are arranged side by side on the zipper placement plate, and one end of the zipper tooth groove is provided with a zipper head avoidance hole and the other end is provided with a zipper tail avoidance hole. The zipper pressure plate is provided with a second sewing avoidance hole corresponding to the first sewing avoidance hole. The second sewing avoidance hole is a U-shaped elongated hole and is connected to the end edge of the zipper pressure plate.

[0018] Preferably, it also includes a reinforcing plate, which is located on the side opposite to the zipper placement plate and the zipper pressure plate.

[0019] A placket machine, comprising the zipper securing device described in any of the preceding claims.

[0020] This utility model provides a zipper fixing device including a zipper placement plate and a zipper pressure plate. Specifically, the zipper placement plate is used to place the zipper, providing a dedicated placement area for the zipper, allowing it to be accurately placed in a predetermined position. This avoids problems such as crooked stitches caused by inaccurate positioning during sewing, thereby improving the precision of zipper sewing. One end of the zipper pressure plate is rotatably connected to the zipper placement plate, and the other end can move towards and away from the zipper placement plate to press the zipper firmly. This allows the zipper pressure plate to rotate flexibly as needed, facilitating the operator's placement and removal of the zipper. The device's operation is streamlined, improving ease of use and adapting to different sizes and types of zippers. Whether plastic or metal, zippers can be effectively pressed by adjusting the position of the zipper pressure plate, enhancing its versatility and applicability. The zipper pressure plate and zipper placement plate are magnetically attracted to each other, pressing the zipper firmly against the plate and ensuring stability throughout the sewing process. Even under external interference, the pressure plate will not easily shift, thus guaranteeing that the zipper remains pressed throughout the entire sewing process, improving sewing stability and reliability.

[0021] The zipper fixing device designed in the above manner can effectively fix various types of zippers, improve the versatility and applicability of the device, and ensure that the zipper maintains a stable position during the sewing process, thereby significantly improving the sewing accuracy of the zipper and forming more beautiful and uniform stitches. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is an installation diagram of the zipper fixing device provided by this utility model;

[0024] Figure 2 This is a schematic diagram of the zipper fixing device provided by this utility model;

[0025] Figure 3 This is a schematic diagram of the zipper placement plate of the zipper fixing device provided by this utility model.

[0026] Figure 4 A schematic diagram of the connecting components of the zipper fixing device provided by this utility model;

[0027] Figure 5Another structural schematic diagram of the connecting assembly of the zipper fixing device provided by this utility model;

[0028] Figure 6 Another structural schematic diagram of the zipper placement plate of the zipper fixing device provided by this utility model;

[0029] Figure 7 This is a schematic diagram of the zipper pressure plate of the zipper fixing device provided by this utility model.

[0030] Figure label:

[0031] 1-Zipper placement plate, 11-Avoidance hole, 12-Zipper head avoidance hole, 13-Zipper tail avoidance hole, 14-Zipper tooth groove, 15-First sewing avoidance hole;

[0032] 2-Zipper pressure plate, 21-Second sewing clearance hole;

[0033] 3-Magnet;

[0034] 4-Connecting component, 41-Lifting plate, 42-Rotating fixed seat, 421-Limiting groove, 43-Rotating seat, 431-Connecting boss, 44-First pin, 45-Ball screw;

[0035] 5-Fixed base;

[0036] 6-Second pin;

[0037] 7-Retaining ring;

[0038] 8-Reinforcing plate;

[0039] 9-Base plate;

[0040] 10-Mobile board. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] The core of this invention is to provide a zipper fixing device that can effectively fix various types of zippers, improving the versatility and applicability of the device. It ensures the zipper maintains a stable position during sewing, thereby significantly improving the sewing precision and resulting in more aesthetically pleasing and uniform stitches. Another core aspect of this invention is to provide a placket sewing machine that includes the aforementioned zipper fixing device, ensuring the zipper maintains a stable position during sewing, thus significantly improving the sewing precision of the zipper.

[0044] Please refer to Figure 1 , Figure 2 and Figure 3 A zipper fixing device includes a zipper placement plate 1 and a zipper pressure plate 2.

[0045] Specifically, the zipper placement plate 1 is used to place zippers, providing a dedicated placement area for them. This ensures the zippers are accurately placed in their designated positions, preventing issues like crooked stitches caused by inaccurate positioning during sewing and thus improving sewing precision. One end of the zipper pressure plate 2 is rotatably connected to the zipper placement plate 1, while the other end can move towards and away from it to press the zipper down. This allows the pressure plate 2 to rotate flexibly as needed, facilitating easy placement and removal of zippers and enhancing the device's usability. The device is versatile and adaptable to different sizes and types of zippers, whether plastic or metal. By adjusting the position of the zipper pressure plate 2, effective clamping can be achieved, enhancing the device's versatility and applicability. The zipper pressure plate 2 and the zipper placement plate 1 are magnetically attracted to each other to press the zipper against the zipper placement plate 1, ensuring that the zipper pressure plate 2 remains stable throughout the sewing process. Even when subjected to external forces, the zipper pressure plate 2 will not easily shift, thus ensuring that the zipper remains compressed throughout the entire sewing process, improving the stability and reliability of the sewing.

[0046] The zipper placement plate 1 has a reinforcing plate 8 on the side opposite to the zipper pressure plate 2. This enhances the structural strength of the zipper placement plate 1, enabling it to withstand greater pressure and load, and reducing deformation or damage caused by external forces during sewing. The reinforcing plate 8 further stabilizes the position of the zipper placement plate 1, ensuring it remains flat and stable throughout the sewing process, thus improving sewing precision and quality.

[0047] The zipper fixing device designed in the above manner can effectively fix various types of zippers, improve the versatility and applicability of the device, and ensure that the zipper maintains a stable position during the sewing process, thereby significantly improving the sewing accuracy of the zipper and forming more beautiful and uniform stitches.

[0048] In the above situation, magnets 3 are respectively provided on the zipper placement plate 1 and the zipper pressure plate 2, or magnets 3 are provided on the zipper placement plate 1 and the zipper pressure plate 2 is a ferromagnetic plate.

[0049] It should be noted that, in one feasible implementation, a first positioning magnet is provided on the zipper placement plate 1 and the reinforcing plate 8, and a second positioning magnet is provided on the zipper pressure plate 2. Through the mutual magnetic attraction between the first and second positioning magnets, the zipper pressure plate 2 is positioned in a preset location. Through precise magnetic fixation, the zipper pressure plate 2 can always remain in the correct position, ensuring that it can stably press the zipper during sewing, reducing zipper displacement or wrinkles during sewing, thereby improving sewing accuracy and quality. When the zipper pressure plate 2 approaches the zipper placement plate 1, the attraction between the magnets 3 is clearly perceptible, allowing the operator to intuitively feel the fixed state, reducing repetitive operations due to uncertain fixation effects. The magnetic attraction reduces the hard friction between the zipper pressure plate 2 and the zipper placement plate 1, reducing mechanical wear and extending the service life of the equipment.

[0050] There are no restrictions on the number, specifications, or placement of the first and second positioning magnets.

[0051] In another feasible implementation, a magnet 3 is provided on the zipper placement plate 1, and the zipper pressure plate 2 is a pressure plate made of ferromagnetic material. The zipper pressure plate 2 can still interact with the magnet 3 on the zipper placement plate 1, so that the zipper pressure plate 2 can always be kept in the correct position. This ensures that the zipper pressure plate 2 can stably press the zipper during the sewing process, reducing the displacement or wrinkles of the zipper during the sewing process, thereby improving the accuracy and quality of sewing.

[0052] In the above embodiment, one end of the zipper placement plate 1 is rotatably connected to the movable plate 10 on the base plate 9 of the placket machine via the connecting component 4, so that the zipper placement plate 1 can move in the direction of approaching and moving away from the base plate 9.

[0053] It should be noted that one end of the zipper placement plate 1 is rotatably connected to the movable plate 10 on the base plate 9 of the placket machine via the connecting component 4. This allows the zipper placement plate 1 to rotate flexibly, eliminating the need for frequent disassembly or reinstallation. Operators can easily adjust its position by simply rotating it, whether moving it closer to or further from the base plate 9, reducing operational steps and improving work efficiency. Precise adjustment of the zipper placement plate 1 ensures that the zipper remains in the correct position during sewing, reducing sewing errors caused by inaccurate positioning and improving the overall product quality.

[0054] Please refer to Figure 2 , Figure 4 and Figure 5 The connecting assembly 4 includes a lifting plate 41, a rotating fixed base 42, and a rotating base 43. One end of the lifting plate 41 is rotatably connected to the moving plate 10, and the other end is connected to the rotating fixed base 42. The rotating fixed base 42 is rotatably connected to the rotating base 43 via a first pin 44. The rotating base 43 is connected to the connecting end of the zipper placement plate 1. The zipper placement plate 1 is fixed on the rotating base 43, and the rotating base 43 is rotatably connected around the rotating fixed base 42 via the first pin 44. When placing the zipper, the zipper placement plate 1 needs to be rotated 180 degrees, and the rotating fixed base 42 is fixed on the lifting plate 41. The lifting plate 41 rotates around the base at a small angle via the pin. A locking device is added between the rotating base 43 and the rotating fixed base 42 to lock the rotating base 43 after it has rotated to the correct position.

[0055] Understandably, by combining the lifting plate 41, the rotating fixed seat 42, and the rotating seat 43, the zipper placement plate 1 can be flexibly rotated and its position adjusted. Operators can easily lift or lower the zipper placement plate 1 without complicated operating procedures, greatly improving operational convenience. This design allows the zipper placement plate 1 to be quickly switched between different positions, and operators can quickly adjust the position of the zipper placement plate 1 according to sewing needs, reducing operation time and improving work efficiency.

[0056] Furthermore, the rotating base 43 has a U-shaped structure, and mounting holes for installing ball screws 45 are provided on both sides of the rotating base 43. Corresponding limiting grooves 421 are provided on both sides of the rotating fixed base 42 so that the steel balls of the ball screws 45 can be restricted within the limiting grooves 421. The ball screws are locked to the rotating base 43 by tightening the lock nut.

[0057] It should be noted that a ball screw 45 is provided between the rotating seat 43 and the rotating fixed seat 42 to limit the relative position of the two. The rotating seat 43 has a U-shaped structure. The two sides of the rotating seat 43 are provided with mounting holes for installing the ball screw 45. The two sides of the rotating fixed seat 42 are provided with corresponding limiting grooves 421 so that the steel ball of the ball screw 45 can be limited in the limiting grooves 421 to limit the position of the placement plate after flipping, and there is a holding force.

[0058] The ball bearing of the ball screw 45 is confined within the limiting groove 421 of the rotating fixed seat 42, enabling precise fixing of the zipper placement plate 1 at different positions. When the ball bearing is embedded in the limiting groove 421, the zipper placement plate 1 is firmly fixed in the preset position, ensuring that it will not shift during sewing. The cooperation between the ball screw 45 and the limiting groove 421 provides a stable fixing effect. Even if the zipper placement plate 1 is disturbed by external forces during sewing, it can remain stable, reducing sewing errors caused by equipment shaking or external forces. The stable fixing of the zipper placement plate 1 ensures that the zipper remains in the correct position during sewing, reducing the possibility of zipper shifting or wrinkling, thereby improving the accuracy and quality of sewing. Since multiple limiting grooves 421 can be designed, the zipper placement plate 1 can be fixed in multiple preset positions to meet different sewing needs, improving the flexibility and adaptability of the equipment.

[0059] Please refer to Figure 6 The zipper pressure plate 2 is rotatably connected to the rotating seat 43. The connecting end of the zipper placement plate 1 is provided with a clearance hole 11 so that the connecting end of the zipper pressure plate 2 passes through the clearance hole 11 and can rotate in a preset direction within the clearance hole 11.

[0060] Understandably, the rotatable connection between the zipper pressure plate 2 and the rotating base 43, as well as the design of the clearance hole 11 at the connecting end of the zipper placement plate 1, allows the zipper pressure plate 2 to rotate flexibly within the clearance hole 11 in a preset direction. This allows operators to easily adjust the position of the zipper pressure plate 2 as needed, whether it is closer to or farther from the zipper placement plate 1, enabling quick operation and greatly improving operational flexibility and convenience. The design of the clearance hole 11 ensures that the connecting end of the zipper pressure plate 2 can be accurately inserted into it and rotated in the preset direction. When placing and adjusting the zipper, operators only need to perform a simple rotation to adjust the position of the zipper pressure plate 2, without the need for complex disassembly or reinstallation, reducing operational steps and improving work efficiency.

[0061] In one feasible implementation, one end of the zipper pressure plate 2 is hinged to the zipper placement plate 1, allowing the other end of the zipper pressure plate 2 to move towards and away from the zipper placement plate 1. The hinged connection allows the zipper pressure plate 2 to open and close flexibly, enabling the operator to easily place the zipper on the zipper placement plate 1 and then secure it by closing the zipper pressure plate 2. This design significantly improves the convenience and flexibility of operation and reduces the number of steps required.

[0062] Based on the above embodiment, the connecting end of the zipper pressure plate 2 is connected to the fixing seat 5. The fixing seat 5 is rotatably connected to the connecting boss 431 of the rotating seat 43 via the second pin 6. The second pin 6 is provided with a retaining ring 7 for limiting the fixing seat 5.

[0063] It should be noted that, through the rotatable connection between the second pin 6 and the connecting boss 431 of the rotating seat 43, the connecting end of the zipper pressure plate 2 can rotate flexibly, allowing the operator to easily adjust the position of the zipper pressure plate 2 as needed. Whether it is close to or far from the zipper placement plate 1, the operation can be completed quickly, greatly improving the flexibility and convenience of operation. The use of the retaining ring 7 limits the rotation range of the fixed seat 5, ensuring that the zipper pressure plate 2 can work stably in the preset position, reducing sewing errors caused by inaccurate positioning.

[0064] Please refer to Figure 6 and Figure 7 The zipper placement plate 1 is provided with a zipper head avoidance hole 12, a zipper tail avoidance hole 13, a zipper tooth groove 14, and a first sewing avoidance hole 15. The zipper tooth groove 14 and the first sewing avoidance hole 15 are arranged side by side on the zipper placement plate 1, with one end of the zipper tooth groove 14 having a zipper head avoidance hole 12 and the other end having a zipper tail avoidance hole 13. The zipper pressure plate 2 is provided with a second sewing avoidance hole 21 corresponding to the first sewing avoidance hole 15. Two zipper head avoidance holes 12 are provided, and a zipper tooth groove 14 is designed between the two zipper head avoidance holes 12 to accommodate different types of zippers.

[0065] Understandably, the design of the zipper tooth slot 14 ensures that the zipper teeth can be accurately placed in the predetermined position, reducing zipper displacement or offset during the sewing process, thereby improving sewing precision and quality. The design of the first sewing clearance hole 15 and the second sewing clearance hole 21 allows the sewing needle to pass through unobstructed during the sewing process, avoiding interference between the sewing needle and the zipper pressure plate 2 or zipper placement plate 1, ensuring smooth sewing. The design of the zipper head clearance hole 12 and the zipper tail clearance hole 13 allows the head and tail of the zipper to be properly cleared, allowing the operator to easily place and adjust the zipper without worrying about the zipper head or tail being obstructed during the sewing process. Due to the design of the zipper tooth slot 14 and clearance hole 11, the operator can quickly place the zipper in the correct position, reducing the time wasted on adjusting the zipper position and improving sewing efficiency. When placing the zipper, using the zipper tail as a reference, the zipper teeth engage with the zipper tooth slot 14. Once engaged, the zipper pressure plate 2 is rotated, and the zipper pressure plate 2 is fixed to the zipper placement plate 1 by the magnetic attraction of the first and second positioning magnets, thus pressing the zipper tight. When the zipper is a plastic zipper, because the zipper teeth have a certain elastic deformation, the zipper teeth engaging with the zipper tooth slot 14 have outward tension, thus preventing them from falling out.

[0066] In a preferred embodiment, the second sewing clearance hole 21 is a U-shaped elongated hole and is connected to the end edge of the zipper pressure plate 2.

[0067] It should be noted that the second sewing clearance hole 21 adopts a U-shaped elongated hole design and is connected to the end edge of the zipper pressure plate 2. This design provides a larger operating space, allowing the sewing needle to move flexibly during sewing and avoiding interference between the sewing needle and the zipper pressure plate 2 caused by the clearance hole 11 being too small. The U-shaped elongated hole design allows the sewing needle to choose from multiple sewing paths near the end edge of the zipper pressure plate 2, improving the flexibility and adaptability of sewing and meeting different sewing needs.

[0068] The zipper press plate 2 is made of hard alloy plate, possessing high strength and wear resistance. It can withstand the significant pressure and friction generated during sewing, significantly extending its service life and reducing equipment malfunctions caused by material wear. It is not easily deformed during long-term use, ensuring the zipper press plate 2 remains stable throughout the sewing process, improving sewing precision and quality. The edges of the zipper press plate 2 are rounded, reducing the risk of scratches or cuts from sharp edges during operation, improving operational safety and protecting the operator's personal safety. The surface of the zipper press plate 2 has an anti-slip texture, increasing the friction between the zipper press plate 2 and the zipper, ensuring the zipper does not slip during sewing, improving sewing stability and precision. The anti-slip texture design reduces sewing errors caused by zipper slippage, ensuring the zipper remains in the correct position throughout the sewing process, improving the overall quality of the product.

[0069] In summary, the zipper fixing device provided by this utility model involves first rotating the zipper placement plate 1 180°, and then opening the zipper pressure plate 2. At this point, the operator can easily place the zipper into the zipper placement slot of the zipper placement plate 1 (there is a slight gap between the zipper and the zipper placement slot, allowing for easy insertion without affecting positioning). Once the zipper is properly placed, the operator simply needs to close the zipper pressure plate 2 again. The interaction between the first and second positioning magnets then firmly attaches the zipper pressure plate 2 to the zipper placement plate 1, ensuring that the zipper remains in the correct and stable position throughout the device, providing a solid and reliable guarantee for subsequent sewing work. This device is compatible with various types of zippers, whether plastic or metal, ensuring they are stably fixed to the device during sewing. The device uses a unique two-plate clamping method to fix the zipper. This design not only enhances the stability of the zipper but also effectively prevents the zipper from falling off or folding during movement, thus significantly improving the quality and efficiency of sewing.

[0070] In addition to the zipper fixing devices disclosed in the above embodiments, this utility model also provides a placket machine including the above-mentioned zipper fixing device. For the structure of other parts of the placket machine, please refer to the prior art, which will not be described in detail here.

[0071] 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.

[0072] 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.

[0073] The zipper fixing device and placket machine provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A fastener device, characterized by include: Zipper placement plate (1), used to place zippers; The zipper pressure plate (2) is rotatably connected to the zipper placement plate (1) at one end, and can move in the direction of approaching and moving away from the zipper placement plate (1) at the other end. The zipper pressure plate (2) and the zipper placement plate (1) are magnetically attracted to each other to press the zipper onto the zipper placement plate (1).

2. The slide fastener fixture of claim 1, wherein Magnets (3) are provided on the zipper placement plate (1) and the zipper pressing plate (2), or the zipper placement plate (1) is provided with the magnets (3) and the zipper pressing plate (2) is a ferromagnetic plate.

3. The slide fastener fixture of claim 1, wherein One end of the zipper placement plate (1) is rotatably connected to the movable plate (10) on the base plate (9) of the placket machine via a connecting assembly (4), so that the zipper placement plate (1) can move in directions toward and away from the base plate (9).

4. The slide fastener fixture of claim 3, wherein The connecting assembly (4) includes a lifting plate (41), a rotating fixed seat (42), and a rotating seat (43). One end of the lifting plate (41) is rotatably connected to the moving plate (10), and the other end is connected to the rotating fixed seat (42). The rotating fixed seat (42) is rotatably connected to the rotating seat (43) through a first pin (44). The rotating seat (43) is connected to the connecting end of the zipper placement plate (1).

5. The slide fastener fixture of claim 4, wherein The rotating seat (43) has a U-shaped structure. The rotating seat (43) has mounting holes on both sides for mounting ball screws (45). The rotating fixed seat (42) has corresponding limiting grooves (421) on both sides so that the steel balls of the ball screws (45) can be restricted in the limiting grooves (421).

6. The zipper fixing device according to claim 5, characterized in that, The zipper pressure plate (2) is rotatably connected to the rotating seat (43). The connecting end of the zipper placement plate (1) is provided with a clearance hole (11) so that the connecting end of the zipper pressure plate (2) passes through the clearance hole (11) and can rotate in a preset direction within the clearance hole (11).

7. The slide fastener device of claim 6, wherein The connecting end of the zipper pressure plate (2) is connected to the fixed seat (5). The fixed seat (5) is rotatably connected to the connecting boss (431) of the rotating seat (43) through the second pin (6). The second pin (6) is provided with a retaining ring (7) for limiting the fixed seat (5).

8. The zipper securing device according to any one of claims 1 to 7, wherein The zipper placement plate (1) is provided with a zipper head avoidance hole (12), a zipper tail avoidance hole (13), a zipper tooth groove (14) and a first sewing avoidance hole (15). The zipper tooth groove (14) and the first sewing avoidance hole (15) are arranged side by side on the zipper placement plate (1). One end of the zipper tooth groove (14) is provided with the zipper head avoidance hole (12) and the other end is provided with the zipper tail avoidance hole (13). The zipper pressure plate (2) is provided with a second sewing avoidance hole (21) corresponding to the first sewing avoidance hole (15). The second sewing avoidance hole (21) is a U-shaped elongated hole and is connected to the end edge of the zipper pressure plate (2).

9. The slide fastener device of claim 1, wherein It also includes a reinforcing plate (8), which is located on the side opposite to the zipper placement plate (1) and the zipper pressure plate (2).

10. A fly-front machine characterized in that, A zipper fixing device according to any one of claims 1 to 9.

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