Double-station nylon zipper visual sewing machine

Abstract

The utility model discloses a double -position nylon zipper vision sewing machine, including a frame, be equipped with two installation stations on the frame, every installation station all is installed with cloth tape feed arrangement, chain tooth feed arrangement, yarn guider, sewing machine head and discharge device, cloth tape feed arrangement, chain tooth feed arrangement, yarn guider, sewing machine head and discharge device on two installation stations are staggered arrangement along the in -out material direction of cloth tape, every sewing machine head and its corresponding discharge device still are equipped with a visual inspection marking device, the utility model saves the clearance between equipment, and the structure is compact, reduces the floor area of equipment, and the space of workshop equipment is optimized. Meanwhile, the sewing machine head and the discharge device between installation have visual inspection puncher, replace manual detection, can effectively detect the abnormal situation of chain tooth and cloth tape, improve the detection efficiency of code loading zipper, reduce the artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of zipper manufacturing equipment, and more specifically to a dual-station nylon zipper visual sewing machine. Background Technology

[0002] Zippers are fasteners that use continuously arranged teeth to join or separate items, and are widely used in clothing, packaging, tents, and other applications. The teeth and fabric tape on nylon zippers are mainly sewn together using a zipper sewing machine.

[0003] Currently, existing zipper sewing machines, such as the Chinese utility model disclosure CN 208949519U, include a yarn consumption counting device, a zipper tooth input control device, a sewing device, a raw fabric production counting device, and a receiving device. When two zipper sewing machines are placed side-by-side, a certain gap needs to be left between them, occupying a significant amount of floor space. Furthermore, the quality inspection of existing zipper assembly mainly relies on manual labor, which is not only inefficient but also increases labor costs.

[0004] In addition, existing zipper sewing machines are prone to uneven stress on both sides when sewing the zipper teeth and fabric tape, resulting in inconsistent product packing quality. To address this, we provide a dual-station nylon zipper visual sewing machine. Utility Model Content

[0005] This utility model provides a dual-station nylon zipper visual sewing machine to solve the problems of existing zipper sewing machines, which occupy a large area when two machines are placed side by side, and whose zipper packing quality depends on manual inspection, resulting in low efficiency and increased labor costs.

[0006] The present invention adopts the following technical solution: A dual-station nylon zipper visual sewing machine includes a frame; the frame has two mounting stations, each mounting station being equipped with a tape feeding device, a zipper tooth feeding device, a yarn guiding device, a sewing head, and a discharge device; the tape feeding device, zipper tooth feeding device, yarn guiding device, sewing head, and discharge device on the two mounting stations are staggered along the tape feeding and discharging direction; a visual inspection marking device is also provided between each sewing head and its corresponding discharge device.

[0007] In a preferred embodiment, each of the above-mentioned chain tooth feeding devices is provided with a chain tooth barrel at the front end, and each of the discharging devices is provided with a stacking barrel below it; the chain tooth barrel and the stacking barrel at the same installation station are respectively located on both sides of the frame.

[0008] In a preferred embodiment, a chain tooth sensing device is installed between the chain tooth feeding device and the sewing machine head.

[0009] In a preferred embodiment, a pressing device is also provided above the stacking barrel. The pressing device includes a pressing cover and a pressing cylinder. The pressing cylinder is fixedly installed on the frame by a cylinder bracket, and the piston head at the lower end of the pressing cylinder is connected to the pressing cover.

[0010] In a preferred embodiment, the aforementioned visual inspection marking device includes a visual support base, a visual camera assembly, and a punching assembly. A visual camera assembly is installed at the front end of the visual support base above and below the zipper, and the punching assembly is provided at the rear end of the visual support base.

[0011] In a preferred embodiment, a tape tensioning device is provided between the tape feeding device and the sewing machine head. The tape tensioning device includes a mounting base, a roller assembly mounted on the mounting base for unwinding the tape, a tape motor for driving the roller assembly, and a tension control mechanism. The tension control mechanism includes a swing arm, a counterweight, a movable stop wheel, a tension limit switch, and an encoder. One end of the swing arm is swayably mounted on the mounting base, and the other end is equipped with the movable stop wheel. The counterweight is also mounted on the swing arm. The tension limit switch is mounted on the side of the swing arm for limiting the initial position of the swing arm. An encoder for recording the swing angle of the swing arm is also provided on the mounting base. The tension limit switch and the encoder are electrically connected to the tape motor.

[0012] In a preferred embodiment, a plurality of fabric guide wheels are further provided behind the roller assembly. The fabric knot detection mechanism includes a knot detection rod, a swing block, a swing block elastic support assembly, an auxiliary rod, and a knot detection switch. One end of the swing block is rotatably mounted on the mounting base, and the other end is a swing end and is fixedly provided with the knot detection rod. The auxiliary rod is spaced apart on the side of the knot detection rod. The swing block elastic support assembly and the knot detection switch are respectively provided on both sides of the swing end of the swing block.

[0013] In a preferred embodiment, a sewing tensioning device is further provided between the sewing machine head and the discharge device. The sewing tensioning device includes a sewing tensioning support, a first discharge guide wheel, a second discharge guide wheel, a discharge roller assembly, and a belt motor. A discharge guide swing rod is rotatably connected to the front end of the sewing tensioning support. The first discharge guide wheel is installed at the swing end of the discharge guide swing rod. The second discharge guide wheel is also installed on the sewing tensioning support. The discharge roller assembly is installed behind the second discharge guide wheel, and the belt motor is connected to the discharge roller assembly.

[0014] In a preferred embodiment, the discharge roller assembly includes a belt pulling roller and a belt pressing roller, wherein the belt pulling motor is connected to the belt pulling roller, and the belt pressing roller is connected to a belt pressing roller cylinder that pulls it up and down.

[0015] In a preferred embodiment, the above-mentioned sewing tensioning device further includes an encoder, the discharge guide rocker arm is mounted on the sewing tensioning support via a rotating shaft, the encoder is connected to the rotating shaft, and the encoder is also electrically connected to the belt pulling motor.

[0016] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: 1. This utility model relates to a dual-station nylon zipper visual sewing machine. The machine frame has two mounting stations. The fabric feeding device, zipper tooth feeding device, yarn guiding device, sewing head, and discharge device at the two mounting stations are staggered along the fabric feeding and discharging direction, saving space between devices, resulting in a compact structure, reduced floor space, and optimized workshop space. Furthermore, this utility model also includes a visual inspection punching device installed between the sewing head and the discharge device to replace manual inspection. This effectively detects abnormalities in the zipper teeth and fabric, improving the inspection efficiency of zipper assembly and reducing labor costs.

[0017] 2. This utility model also includes a tape tensioning device and a sewing tensioning device to adjust the tension of the chain teeth and tape before and after sewing, so that the sewing state is in a stable stress state and ensures the zipper packing quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a diagram showing the path for threading the tape at the front end of this utility model.

[0020] Figure 3 This is a diagram showing the threading path of the chain teeth at the front end of this utility model.

[0021] Figure 4 This is a diagram showing the yarn threading path at the front end of the present invention.

[0022] Figure 5 This is a schematic diagram of the installation of the fabric belt tensioning device of this utility model on the machine frame.

[0023] Figure 6 This is a schematic diagram of the structure of the fabric tape tensioning device of this utility model. Figure 1 .

[0024] Figure 7 This is a schematic diagram of the structure of the fabric tape tensioning device of this utility model. Figure 2 .

[0025] Figure 8 This is a schematic diagram of the sewing tensioning device of this utility model. Figure 1 .

[0026] Figure 9 This is a schematic diagram of the sewing tensioning device of this utility model. Figure 2 .

[0027] Figure 10 This is an exploded view of the visual inspection marking device of this utility model. Detailed Implementation

[0028] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Many details are described below to provide a comprehensive understanding of this utility model; however, those skilled in the art can implement this utility model without these details. Well-known components, methods, and processes will not be described in detail below.

[0029] This utility model provides a dual-station nylon zipper visual sewing machine, referring to... Figure 1 The system includes a frame 1 with two installation stations 100, which are arranged at intervals on the frame 1 as shown in this embodiment. Each installation station 100 is equipped with a fabric feeding device 10, a chain tooth feeding device 20, a yarn guiding device 30, a sewing head 40, and a discharge device 50. The fabric feeding device 10, chain tooth feeding device 20, yarn guiding device 30, sewing head 40, and discharge device 50 on the two installation stations 100 are staggered along the fabric feeding and discharging direction; a visual inspection marking device 60 is also provided between each sewing head 40 and its corresponding discharge device.

[0030] Reference Figures 2 to 4 The aforementioned fabric feeding device 10 includes a fabric guide pressure rod 11, a swing block 12, and a pressure rod 13. The chain tooth feeding device 20 includes a chain tooth pulley 21. A chain tooth sensing device 22 is installed between the chain tooth feeding device 20 and the sewing machine head 40 to sense whether the chain tooth belt contains chain teeth. If no chain teeth are found, the chain tooth belt is replaced promptly to reduce waste. The chain tooth sensing device 22 is equipped with a thickness adjustment block 221 and a drag roller 222. The yarn guiding device 30 includes a U-shaped ceramic eye strip 31, a ceramic eye guide plate 32, a yarn clamp 33, an encoder roller 34, and a ceramic eye guide plate 35.

[0031] The above-mentioned fabric feeding device 10, chain tooth feeding device 20, yarn guiding device 30, sewing machine head 40, and discharge device 50 are all common devices in the art and are not the main innovation of this solution. Therefore, they will not be described in detail in this embodiment. For the convenience of describing this embodiment, the direction from the chain tooth feeding device (or fabric feeding device) to the discharge device is used as the front-back direction.

[0032] Reference Figure 1 The aforementioned chain tooth feeding device 20 has a chain tooth barrel 201 at its front end, and a stacking barrel 501 is provided below each discharge device 50. The chain tooth barrel 201 and the stacking barrel 501 on the same installation station 100 are located on both sides of the frame 1 and close to the frame 1.

[0033] Reference Figure 1 and Figure 5 A fabric tape tensioning device 70 is provided between the aforementioned fabric tape feeding device 10 and the sewing machine head 40, including a mounting base 71, a fabric tape roller group 72, a fabric tape motor 73, and a tension control mechanism. Fabric tape guide roller one 101 and fabric tape guide roller two 102 are mounted at the rear end of the frame 1.

[0034] Reference Figure 5 and Figure 6 The mounting base 71 is fixed to the frame 1, and the belt roller assembly 72 is mounted on the mounting base 71 for unwinding the belt. The belt roller assembly 72 consists of a belt drive wheel 721 and a belt pressure wheel 722. The belt motor 73 drives the belt roller assembly 72 to rotate and is connected to the belt drive wheel 721. Although this embodiment... Figure 1 The diagram shows the belt drive wheel 721 at the bottom and the belt pressure wheel 722 at the top. However, in practical applications, the belt drive wheel can also be positioned at the top and the belt pressure wheel at the bottom.

[0035] Reference Figure 6 and Figure 7 The aforementioned tension control mechanism includes a swing arm 741, a counterweight 742, a movable stop wheel 743, a tension limit switch 744, and an encoder 745. One end of the swing arm 741 is swayably mounted on the mounting base 71, and the other end is equipped with the movable stop wheel 743. Specifically, one end of the swing arm 741 is fixedly connected to a fixed shaft 7411, and the fixed shaft 7411 is rotatably mounted on the mounting base 71.

[0036] Reference Figure 6 and Figure 7 A counterweight 742 is also installed on the swing arm 741, and a tension limit switch 744 is installed on the side of the swing arm 741 for limiting the initial position of the swing arm. An encoder 745 for recording the swing angle of the swing arm 741 is also provided on the mounting base 71. Specifically, the encoder 745 is connected to the aforementioned fixed shaft 7411. The tension limit switch 744 and the encoder 745 are electrically connected to the belt motor 73.

[0037] Reference Figure 5 and Figure 6A tape knot detection mechanism is also provided between the tape guide wheel 101 and the tape guide wheel 102, and a tape guide wheel 103 is provided between the tape guide wheel 102 and the tape roller assembly 72. The tape knot detection mechanism includes a knot detection rod 751, a swing block 752, a swing block elastic support assembly 753, an auxiliary rod 754, and a knot detection switch 755. One end of the swing block 752 is rotatably mounted on the mounting base 71, and the other end is a swing end and is fixedly provided with the knot detection rod 751. The mounting base 71 on the side of the knot detection rod 751 is provided with auxiliary rods 754 at intervals, and the distance between the auxiliary rods 754 and the knot detection rod 751 is slightly greater than the thickness of the tape. The swing block elastic support assembly 753 and the knot detection switch 755 are respectively provided on both sides of the swing end of the swing block 752. The swing block elastic support assembly 753 includes a bolt 7531, a spring 7532, and a bolt mounting block 7533. The bolt mounting block 7533 is fixed to the side of the swing block 752. A threaded hole is formed on the bolt mounting block 7533, and the end of the bolt 7531 passes through the threaded hole, with a gap between it and the swing block 752. The spring 7532 is installed between the end of the bolt 7531 and the side of the swing block 752. When the fabric is unwound normally, the spring 7532 presses tightly against the side of the swing block to fix it. When the fabric gets knotted, the knot detection rod 751 drives the swing block to compress the spring towards the side of the swing block elastic support assembly 753.

[0038] Reference Figure 5 A pressure rod 746 is also provided between the roller assembly 72 and the movable stop roller 743. A height-adjusting shaft 104 is provided at the front end of the frame 1, and the height-adjusting shaft 104 is located above the movable stop roller 743.

[0039] During normal operation, the movable guide wheel swings up and down with the swing arm. When the belt motor accelerates, the movable guide arm falls downwards. When the swing arm reaches its initial position, a deceleration signal is triggered by the tension limit switch, causing the motor to decelerate and the movable guide wheel to rise with the swing arm. The encoder records the rotation angle of the swing arm. When the swing arm reaches the maximum deflection angle set by the encoder, it triggers the belt motor to accelerate, and the movable guide wheel falls downwards. This cycle continues until the tension becomes constant and is maintained.

[0040] When a knot occurs in the fabric belt, the belt pulls the swing block towards the side of the elastic support assembly. The knot detection switch cannot detect the knot detection rod signal and triggers an alarm. After the knot is cleared, the fabric belt is re-looped around the fabric belt guide wheel 1, knot detection rod, fabric belt guide wheel 2, fabric belt guide wheel 3, fabric belt roller assembly, pressure rod, movable stop wheel, and height adjustment wheel axle on the frame, and the equipment continues to operate.

[0041] Reference Figure 1 , Figure 8 and Figure 9A sewing tensioning device 80 is also provided between the sewing machine head 40 and the discharge device 50. The sewing tensioning device 80 includes a sewing tensioning support 81, a first discharge guide wheel 82, a second discharge guide wheel 83, a discharge roller assembly, a belt pull motor 85, and an encoder 86. A discharge guide rocker arm 87 is rotatably connected to the front end of the sewing tensioning support 81. The first discharge guide wheel 82 is installed at the swing end of the discharge guide rocker arm 87, and the second discharge guide wheel 83 is also installed on the sewing tensioning support 81. The discharge guide rocker arm 87 is installed on the sewing tensioning support 81 via a rotating shaft 871, and the encoder 86 is connected to the rotating shaft 871. The discharge roller assembly is installed behind the second discharge guide wheel 83, and the belt pull motor 85 is connected to the discharge roller assembly. The encoder 86 is also electrically connected to the belt pull motor 85.

[0042] Reference Figure 8 The above-mentioned discharge roller assembly includes a belt pull roller 841 and a belt pressure roller 842. The belt pull motor 85 is connected to the belt pull roller 841, and the belt pressure roller 842 is connected to a belt pressure roller cylinder 843 that pulls it up and down, so as to facilitate the operator to pick up and put down the stacked zippers when starting or stopping the machine.

[0043] Reference Figure 8 and Figure 9 When the belt motor 85 decelerates and rotates, the first discharge guide wheel 82 falls down. When the discharge guide swing rod 87 falls to a certain height, it triggers an acceleration signal, the belt motor 85 accelerates and rotates, the first discharge guide wheel 82 is lifted up, and the encoder 86 records the swing angle until a certain tension is maintained.

[0044] Reference Figure 1 and Figure 10 The aforementioned visual inspection marking device 60 includes a visual support base 61, a visual camera assembly, and a punching assembly. A visual camera assembly is mounted above and below the zipper at the front end of the visual support base 61, respectively. Each visual camera assembly includes a camera mounting cover 621 and a visual camera 622. The upper and lower visual camera assemblies respectively inspect the upper and lower surfaces of the zipper. A punching assembly is located at the rear end of the visual support base 61. The punching assembly includes a zipper guide seat 631, a punching cylinder 632, and a punching needle 633 connected to the punching cylinder 632. A zipper guide groove 6310 is formed on the side of the zipper guide seat 631, and a through hole communicating with the zipper guide groove 6310 is provided on the top surface of the zipper guide seat 631. The lower part of the punching needle 633 is located within the through hole.

[0045] Reference Figure 1Above the aforementioned stacking drum, a pressing device 90 is also provided. The pressing device 90 includes a pressing cover 91 and a pressing cylinder 92. The pressing cylinder 92 is fixedly mounted on the frame 1 via a cylinder bracket 921, and the piston head at the lower end of the pressing cylinder 92 is connected to the pressing cover 91. The pressing cover 91 is preferably a conical structure, used to press the stacked zippers inside the stacking drum 501, so that the stacking drum 501 can hold more stacked zippers.

[0046] The above instructions for using the dual-station nylon zipper visual sewing machine include the following steps: 1. The fabric belt is sequentially passed around the first fabric belt guide wheel, the knot detection round rod, the second fabric belt guide wheel, the third fabric belt guide wheel, the roller group, the pressure rod, the movable stop wheel and the rotating wheel shaft in the fabric belt tensioning device on the frame, and then passes through the guide pressure rod, the swing block and the pressure rod in the fabric belt feeding device 10, and finally reaches the sewing point of the sewing machine head.

[0047] 2. The chain teeth pass sequentially through the pulley in the chain tooth feeding device 20, the thickness adjustment block in the chain tooth sensing device, and the groove of the drag roller, reaching the sewing point of the sewing machine head.

[0048] 3. The yarn enters through the guide hole, passes through the U-shaped ceramic eye strip plate, ceramic eye guide plate, yarn clamp, encoder roller, and ceramic eye guide plate in the yarn guiding device, and finally reaches the sewing point in the sewing machine head.

[0049] 4. The sewing machine head starts working, using yarn to sew the fabric tape to the chain teeth to form a stacked zipper; the rollers on the sewing machine head transport the sewn stacked zipper backward.

[0050] 5. The sewn nylon zipper is threaded through the first discharge guide wheel 82 and the second discharge guide wheel 83 of the sewing tensioning device; then it passes through the visual inspection marking device to check the quality of the fabric tape and chain teeth sewing, and marks any defective positions with holes; then it passes through the discharge roller assembly, and finally through the discharge device. Driven by the belt motor and the discharge motor of the discharge device, the zipper is continuously conveyed to the zipper bucket.

[0051] 6. Repeat the above 5 steps to operate the sewing chain teeth and fabric tape at another workstation; the two workstations share a touch screen, but can be controlled and operated independently.

[0052] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A dual-station nylon zipper visual sewing machine, comprising a frame; characterized in that: The frame has two installation stations, each equipped with a fabric feeding device, a chain tooth feeding device, a yarn guiding device, a sewing head, and a discharge device. The fabric feeding device, chain tooth feeding device, yarn guiding device, sewing head, and discharge device at the two installation stations are staggered along the fabric feeding and discharging direction. A visual inspection marking device is also provided between each sewing head and its corresponding discharge device.

2. The dual-station nylon zipper visual sewing machine as described in claim 1, characterized in that: Each of the chain tooth feeding devices has a chain tooth barrel at its front end, and each of the discharging devices has a stacking barrel below it; the chain tooth barrel and the stacking barrel at the same installation station are respectively located on both sides of the frame.

3. The dual-station nylon zipper visual sewing machine as described in claim 2, characterized in that: A chain tooth sensing device is installed between the chain tooth feeding device and the sewing machine head.

4. A dual-station nylon zipper visual sewing machine as described in claim 2, characterized in that: A pressing device is also provided above the stacking barrel. The pressing device includes a pressing cover and a pressing cylinder. The pressing cylinder is fixedly installed on the frame by a cylinder bracket. The piston head at the lower end of the pressing cylinder is connected to the pressing cover.

5. A dual-station nylon zipper visual sewing machine as described in claim 1, characterized in that: The visual inspection and marking device includes a visual support base, a visual camera assembly, and a punching assembly. A visual camera assembly is installed at the front end of the visual support base above and below the zipper, and the punching assembly is provided at the rear end of the visual support base.

6. A dual-station nylon zipper visual sewing machine as described in claim 1, characterized in that: A tape tensioning device is provided between the tape feeding device and the sewing machine head. The tape tensioning device includes a mounting base, a roller assembly mounted on the mounting base for unwinding the tape, a tape motor for driving the roller assembly, and a tension control mechanism. The tension control mechanism includes a swing arm, a counterweight, a movable stop wheel, a tension limit switch, and an encoder. One end of the swing arm is swayably mounted on the mounting base, and the other end is equipped with the movable stop wheel. A counterweight is also mounted on the swing arm. The tension limit switch is mounted on the side of the swing arm for limiting the initial position of the swing arm. An encoder for recording the swing angle of the swing arm is also provided on the mounting base. The tension limit switch and the encoder are electrically connected to the tape motor.

7. A dual-station nylon zipper visual sewing machine as described in claim 6, characterized in that: The roller assembly is further provided with several belt guide wheels at the rear. The belt knot detection mechanism includes a knot detection rod, a swing block, a swing block elastic support assembly, an auxiliary rod, and a knot detection switch. One end of the swing block is rotatably mounted on the mounting base, and the other end is a swing end and is fixedly provided with the knot detection rod. The auxiliary rod is provided at intervals on the side of the knot detection rod. The swing block elastic support assembly and the knot detection switch are respectively provided on both sides of the swing end of the swing block.

8. A dual-station nylon zipper visual sewing machine as described in claim 1, characterized in that: A sewing tensioning device is also provided between the sewing machine head and the discharge device. The sewing tensioning device includes a sewing tensioning support, a first discharge guide wheel, a second discharge guide wheel, a discharge roller assembly, and a belt motor. A discharge guide swing rod is rotatably connected to the front end of the sewing tensioning support. The first discharge guide wheel is installed at the swing end of the discharge guide swing rod. The second discharge guide wheel is also installed on the sewing tensioning support. The discharge roller assembly is installed behind the second discharge guide wheel, and the belt motor is connected to the discharge roller assembly.

9. A dual-station nylon zipper visual sewing machine as described in claim 8, characterized in that: The discharge roller assembly includes a belt pulling roller and a belt pressing roller. The belt pulling motor is connected to the belt pulling roller, and the belt pressing roller is connected to a belt pressing roller cylinder that pulls it up and down.

10. A dual-station nylon zipper visual sewing machine as described in claim 8, characterized in that: The sewing tensioning device also includes an encoder. The discharge guide rocker is mounted on the sewing tensioning support via a rotating shaft. The encoder is connected to the rotating shaft and is also electrically connected to the belt pulling motor.

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