Zipper clamping and straightening device

Abstract

A zipper clamping and straightening device comprises a driving device, a sliding pair and a clamping part, the driving device is used for driving a movable part of the sliding pair to move, the clamping part is arranged on the movable part of the sliding pair, and the clamping part is used for clamping a zipper; the at least two clamping parts are used for clamping a zipper, moving to a target position and straightening or loosening the zipper; a tension limiter or a tension sensor is arranged between the driving device and the sliding pair; the tension limiter or the tension sensor is used for detecting the straightening state of the zipper; the driving device comprises a rotating device and a lead screw moving pair; the moving part of the lead screw moving pair is connected with the movable part of the sliding pair; the sliding pair comprises a sliding rail and a movable part; a pressing part is arranged on the clamping part, and the lifting part is the pressing part and used for clamping a zipper; and the lifting part is used for adjusting the height of the clamping part.

Description

Technical Field

[0001] The utility model belongs to the technical field of zipper sewing technology for sewing equipment, and particularly relates to a zipper clamping and straightening device. Background Art

[0002] In the field of garment sewing, the zipper sewing process is the most complex and has the highest skill requirements. Since the length of the zipper is different from that of the garment piece, redundant positions need to be made on the garment piece during manual sewing, and different types of garments have different requirements for the amount of redundant positions. Moreover, the left and right sides of the zipper are sewn on the left and right garment pieces respectively, so the garment sewing process has requirements for the alignment of the left and right garment pieces and the left and right zippers. At present, the zipper sewing process is all completed manually, which has high skill requirements for workers, consumes a lot of time, and has low production efficiency. There are template machines on the market for completing the zipper sewing process, but using a template machine to sew a zipper requires different specifications of templates to achieve various amounts of redundant positions and cannot solve the automatic adjustment of the amount of redundant positions. In addition, during the placement of the zipper, it is necessary to ensure that the zipper is placed accurately.

[0003] To solve this problem and enable the zipper sewing to adapt to different lengths of garment pieces and be able to align the head of the garment piece, a zipper clamping and straightening device is needed. Summary of the Utility Model

[0004] The utility model provides a zipper sewing device that respectively clamps the head and tail of the zipper through two clamp devices, then judges whether the zipper is straightened through a zipper straightening detection device, and the clamp devices move to align the head of the garment piece and then press it onto the garment piece.

[0005] The purpose of the utility model is to provide a zipper clamping and straightening device, which includes a driving device, a sliding pair, and a clamping part. The driving device is used to drive the moving part of the sliding pair to move. A clamping part is arranged on the moving part of the sliding pair, and the clamping part is used to clamp the zipper;

[0006] At least two clamping parts are provided, which are used to clamp the zipper, move to the target position, and straighten or relax the zipper;

[0007] A tension limiter or a tension sensor is arranged between the driving device and the sliding pair; the tension limiter or the tension sensor is used to detect the straightening state of the zipper;

[0008] The driving device includes a rotating device and a lead screw moving pair; the moving part of the lead screw moving pair is connected to the moving part of the sliding pair;

[0009] The sliding pair includes a slide rail and a moving part;

[0010] A pressing part and a lifting part are arranged on the clamping part, and a positioning edge is arranged on the pressing part;

[0011] The pressing part is used to clamp the zipper;

[0012] A lifting part for adjusting the height of the clamping part;

[0013] The present application provides a way to realize the alignment of the front and back by clamping the zipper and making the zipper teeth align with the positioning edge; through two or more clamping parts, the sewing alignment requirements of zippers of any length can be realized, and by straightening, the sewing operation of the zipper can be improved.

[0014] A technical solution provided by the present application further has the following technical features:

[0015] Preferably, in an embodiment of the present application, a laser positioning device is provided on the movable part of the sliding pair or on the clamping part for indicating the positioning reference of the zipper head.

[0016] Preferably, in an embodiment of the present application, a toothed clamp is provided on the working surface where the pressing part abuts against the zipper.

[0017] Preferably, in an embodiment of the present application, a limiting device is provided between the clamping part and the movable part of the sliding pair for limiting the adjusted height of the clamping part.

[0018] Preferably, in an embodiment of the present application, a limiting device and a limiting sensor are provided on the moving path of the movable part of the sliding pair or on the moving path of the moving part of the lead screw moving pair. The limiting device is used to limit the extreme position of the moving path, and the limiting sensor is used to sense the origin target position and the extreme target position.

[0019] Preferably, in an embodiment of the present application, the driving device, the sliding pair, and the clamping part are arranged on the frame; the left zipper clamping device and the right zipper clamping device include a driving device, a sliding pair, and a clamping part, and the movement trajectories of the clamping parts of the zippers of the left zipper clamping device and the right zipper clamping device coincide or the movement trajectory extending coincides with another movement trajectory, so that the zipper is flat after being straightened;

[0020] The left zipper clamping device and the right zipper clamping device are symmetrically arranged or arranged at intervals along the movement direction;

[0021] The left zipper clamping device includes a left mounting bottom plate, a left lead screw motor, a left guide rail mounting plate, a left motor mounting plate, a left origin induction plate, a left linear guide rail, a left origin induction sensor, a left end support plate, a left tension and compression sensor mounting block, a left slider, a left slider mounting plate, a left lower clamp cylinder, an upper left clamp cylinder mounting plate, an upper left clamp cylinder, a left limit screw, a left lower clamp, a left laser positioning plate, a left laser positioning lamp, an upper left clamp mounting plate, an upper left clamp, a left zipper lower pressing plate, and a left slider limit block;

[0022] The right zipper clamping device includes a right mounting base plate, a right screw motor, a right guide rail mounting plate, a right motor mounting plate, a right origin sensing plate, a right linear guide rail, a right origin sensing sensor, a right end support plate, a right tension and compression sensor mounting block, a right slider, a right slider mounting plate, a right lower clamp cylinder, a right upper clamp cylinder mounting plate, a right upper clamp cylinder, a right limit screw, a right lower clamp, a right laser positioning plate, a right laser positioning light, a right upper clamp mounting plate, a right upper clamp, a right zipper lower pressure plate, and a right slider limit block;

[0023] The left mounting base plate is arranged on the column of the frame; the left motor mounting plate and the left guide rail mounting plate are arranged on the left mounting base plate; the left lead screw motor is arranged on the left motor mounting plate; the left linear guide rail, the left slider limit block and the left origin induction sensor are arranged on the left guide rail mounting plate; the left origin induction plate is arranged on the lead screw through the lead screw nut; the left origin induction plate, the left tension and pressure sensor, the left tension and pressure sensor mounting block, the left slider and the left slider mounting plate are connected in sequence; the left slider mounting plate and the left tension and pressure sensor mounting block are both connected to the left slider; the left lower clamp cylinder is arranged on the left slider mounting plate; the left slider mounting plate includes L The base plate, the L base plate is located below the lower left clamp cylinder; the telescopic end of the lower left clamp cylinder is connected to the upper left clamp cylinder mounting plate and the lower left clamp; the lower left clamp is provided with a left limit screw, and the left limit screw is used to limit the L base plate that contacts the left slider mounting plate; the upper left clamp cylinder is arranged on the upper left clamp cylinder mounting plate; the left laser positioning plate is arranged on the upper end surface of the fixed end of the lower left clamp cylinder, and the left laser positioning light is arranged on the left laser positioning plate; the telescopic end of the upper left clamp cylinder mounting plate is connected to the upper left clamp mounting plate, the upper left clamp is arranged at the end of the upper left clamp mounting plate, and the left zipper lower pressure plate is arranged on the upper left clamp.

[0024] Preferably, in an embodiment of the present application, the right mounting base plate is arranged on the column of the frame; the right motor mounting plate and the right guide rail mounting plate are arranged on the right mounting base plate; the right lead screw motor is arranged on the right motor mounting plate; the right linear guide rail, the right slider limit block, and the right origin induction sensor are arranged on the right guide rail mounting plate; the right origin induction plate is arranged on the lead screw through a lead screw nut; the right origin induction plate, the right zipper clamping device 0 zipper, the right tension and compression sensor mounting block, the right slider, and the right slider mounting plate are connected in sequence; both the right slider mounting plate and the right tension and compression sensor mounting block are connected to the right slider; the right lower clamp cylinder is arranged on the right slider mounting plate; the right slider mounting plate includes an L base plate, and the L base plate is located below the right lower clamp cylinder; the telescopic end of the right lower clamp cylinder is connected to the upper right clamp cylinder mounting plate and the right lower clamp; a right limit screw is arranged on the right lower clamp, and the right limit screw is used to limit and abut against the L base plate of the right slider mounting plate; the upper right clamp cylinder is arranged on the upper right clamp cylinder mounting plate; the right laser positioning plate is arranged on the upper end surface of the fixed end of the right lower clamp cylinder, and a right laser positioning lamp is arranged on the right laser positioning plate; the telescopic end of the upper right clamp cylinder mounting plate is connected to the upper right clamp mounting plate, and the upper right clamp is arranged at the end of the upper right clamp mounting plate; the left zipper lower pressing plate is arranged on the left zipper clamping device right zipper clamping device frame.

[0025] Preferably, in an embodiment of the present application, a tension and compression sensor is arranged on the left zipper clamping device or the right zipper clamping device, or a tension and compression sensor is arranged between the left zipper clamping device and the right zipper clamping device.

[0026] Preferably, in an embodiment of the present application, a left tension and compression sensor is arranged on the left zipper clamping device.

[0027] The beneficial effects of the present application are as follows:

[0028] 1. It can adapt to zippers with various length dimensions, reducing the limitations of the equipment on the sewing fabric and the zipper length;

[0029] 2. It is equipped with a zipper straightening sensor to ensure that the zipper is in a straightened state before sewing, reducing the requirements of the equipment for manual placement of the zipper;

[0030] 3. The configured laser positioning lamp can provide a positioning reference for manually placing the zipper head; and the laser lamp mounting plate can be adjusted left and right;

[0031] 4. The head and tail of the zipper can be aligned and adjusted according to the head and tail of the garment piece to ensure the aligned sewing of the zipper head and the garment piece head, reducing the requirements of the equipment for manual placement and alignment;

[0032] 5. The upper and lower clamps ensure the stability of clamping the zipper through a tooth-shaped design;

[0033] 6. The upper clamp mounting plate is configured with oblong holes to adjust the position of the upper clamp, providing a placement and positioning reference for sewing zippers of different specifications and sizes.

[0034] 7. The limit screw can adjust the lowest position of the lower clamp so that the downward pressure on the zipper can adapt to fabrics of different thicknesses.

[0035] 8. The height of the lower zipper pressing plate is slightly lower than that of the upper clamp, enabling the downward-pressed and straightened zipper to closely adhere to the fabric, thus avoiding...

[0036] 9. The left and right zipper clamping devices are mirror images of each other, without distinguishing whether the zipper head is on the left or right. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a perspective view of a zipper clamping and straightening device of the present utility model Figure 1 ;

[0038] Figure 2 is a perspective view of a zipper clamping and straightening device of the present utility model Figure 2 ;

[0039] Figure 3 is a perspective view of the right zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0040] Figure 4 is a schematic view of the right zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0041] Figure 5 is a perspective view of the left zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0042] Figure 6 is a perspective view of the left zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0043] Figure 7 is a top view of the left zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0044] Figure 8 is a perspective view of the right zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0045] Figure 9 is a schematic view of the clamping part of the left zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0046] Figure 10 is a top view of the right zipper clamping device of a zipper clamping and straightening device of the present utility model;

[0047] Elements in the figure:

[0048] 1. Frame

[0049] 4. Sewing machine

[0050] 5. Garment piece redundant position device

[0051] 6. Zipper

[0052] 2. Left zipper clamping device

[0053] 201. Left mounting base plate

[0054] 202. Left lead screw motor

[0055] 203. Left guide rail mounting plate

[0056] 204. Left motor mounting plate

[0057] 205. Left origin induction plate

[0058] 206. Left tension and compression sensor

[0059] 207. Left linear guide rail

[0060] 208. Left origin induction sensor

[0061] 209. Left end support plate

[0062] 210. Left tension and compression sensor mounting block

[0063] 211. Left slider

[0064] 212. Left slider mounting plate

[0065] 213. Left lower clamp cylinder

[0066] 214. Left upper clamp cylinder mounting plate

[0067] 215. Left upper clamp cylinder

[0068] 216. Left limit screw

[0069] 217. Left lower clamp

[0070] 218. Left laser positioning plate

[0071] 219. Left laser positioning lamp

[0072] 220. Left upper clamp mounting plate

[0073] 221. Left upper clamp

[0074] 222. Left zipper lower pressing plate

[0075] 223. Left slider limit block

[0076] 3. Right zipper clamping device

[0077] 301, Right mounting base plate

[0078] 302, Right lead screw motor

[0079] 303, Right guide rail mounting plate

[0080] 304, Right motor mounting plate

[0081] 305, Right origin induction plate

[0082] 307, Right linear guide rail

[0083] 308, Right origin induction sensor

[0084] 309, Right end support plate

[0085] 310, Right tension and compression sensor mounting block

[0086] 311, Right slider

[0087] 312, Right slider mounting plate

[0088] 313, Lower right clamp cylinder

[0089] 314, Upper right clamp cylinder mounting plate

[0090] 315, Upper right clamp cylinder

[0091] 316, Right limit screw

[0092] 317, Lower right clamp

[0093] 318, Right laser positioning plate

[0094] 319, Right laser positioning lamp

[0095] 320, Upper right clamp mounting plate

[0096] 321, Upper right clamp

[0097] 322, Lower right zipper pressing plate

[0098] 323, Right slider limit block. Detailed implementation manners

[0099] The following further elaborates in detail the specific implementation manners of the present application with reference to the accompanying drawings. These implementation manners are only used to illustrate the present application and are not a limitation to the present utility model.

[0100] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0101] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0102] In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0103] For example Figures 1-10 , a zipper clamping and straightening device includes a driving device, a sliding pair, and a clamping part. The driving device is used to drive the moving part of the sliding pair to move. A clamping part is provided on the moving part of the sliding pair, and the clamping part is used to clamp the zipper;

[0104] At least two clamping parts are provided, which are used to clamp the zipper, move to the target position, and straighten or relax the zipper;

[0105] A tension limiter or a tension sensor is provided between the driving device and the sliding pair; the tension limiter or the tension sensor is used to detect the straightening state of the zipper;

[0106] The driving device includes a rotating device and a lead screw moving pair; the moving part of the lead screw moving pair is connected to the moving part of the sliding pair;

[0107] The sliding pair includes a slide rail and a moving part;

[0108] A pressing part and a lifting part are provided on the clamping part, and a positioning edge is provided on the pressing part;

[0109] The pressing part is used to clamp the zipper;

[0110] The lifting part is used to adjust the height of the clamping part.

[0111] Specifically, in an embodiment of the present application, a laser positioning device is provided on the movable part of the sliding pair or the clamping part to indicate the positioning reference of the zipper head; a toothed clamp is provided on the pressing part against the working surface of the zipper; a limiting device is provided between the clamping part and the movable part of the sliding pair to limit the adjustment height of the clamping part; a limiting device and a limit sensor are provided on the moving path of the movable part of the sliding pair or on the moving path of the moving part of the lead screw sliding pair. The limiting device is used to limit the extreme position of the moving path, and the limit sensor is used to sense the origin target position and the extreme target position.

[0112] Specifically, in an embodiment of the present application, the driving device, the sliding pair, and the clamping part are arranged on the frame 1; the left zipper clamping device 2 and the right zipper clamping device 3 include a driving device, a sliding pair, and a clamping part, and the movement trajectories of the clamping parts of the zippers of the left zipper clamping device 2 and the right zipper clamping device 3 coincide or the extended movement trajectory coincides with another movement trajectory, so that the zipper is straightened and flat after being straightened;

[0113] The left zipper clamping device 2 and the right zipper clamping device 3 are symmetrically arranged or arranged at intervals along the movement direction;

[0114] The left zipper clamping device 2 includes a left mounting base plate 201, a left lead screw motor 202, a left guide rail mounting plate 203, a left motor mounting plate 204, a left origin induction plate 205, a left linear guide rail 207, a left origin induction sensor 208, a left end support plate 209, a left tension and compression sensor mounting block 210, a left slider 211, a left slider mounting plate 212, a left lower clamp cylinder 213, an upper left clamp cylinder mounting plate 214, an upper left clamp cylinder 215, a left limit screw 216, a left lower clamp 217, a left laser positioning plate 218, a left laser positioning lamp 219, an upper left clamp mounting plate 220, an upper left clamp 221, a left zipper lower pressing plate 222, and a left slider limit block 223;

[0115] The right zipper clamping device 3 includes a right mounting base plate 301, a right lead screw motor 302, a right guide rail mounting plate 303, a right motor mounting plate 304, a right origin induction plate 305, a right linear guide rail 307, a right origin induction sensor 308, a right end support plate 309, a right tension and compression sensor mounting block 310, a right slider 311, a right slider mounting plate 312, a right lower clamp cylinder 313, an upper right clamp cylinder mounting plate 314, an upper right clamp cylinder 315, a right limit screw 316, a right lower clamp 317, a right laser positioning plate 318, a right laser positioning lamp 319, an upper right clamp mounting plate 320, an upper right clamp 321, a right zipper lower pressing plate 322, and a right slider limit block 323;

[0116] The left mounting base plate 201 is arranged on the column of the frame 1; the left motor mounting plate 204 and the left guide rail mounting plate 203 are arranged on the left mounting base plate 201; the left lead screw motor 202 is arranged on the left motor mounting plate 204; the left linear guide rail 207, the left slider limit block 223, and the left origin induction sensor 208 are arranged on the left guide rail mounting plate 203; the left origin induction plate 205 is arranged on the lead screw through a lead screw nut; the left origin induction plate 205, the left tension and compression sensor 206, the left tension and compression sensor mounting block 210, the left slider 211, and the left slider mounting plate 212 are connected in sequence; both the left slider mounting plate 212 and the left tension and compression sensor mounting block 210 are connected to the left slider 211; the left lower clamp cylinder 213 is arranged on the left slider mounting plate 212; the left slider mounting plate 212 includes an L-shaped base plate, and the L-shaped base plate is located below the left lower clamp cylinder 213; the telescopic end of the left lower clamp cylinder 213 is connected to the upper left clamp cylinder mounting plate 214 and the left lower clamp 217; the left lower clamp 217 is provided with a left limit screw 216, and the left limit screw 216 is used for limiting and abutting against the L-shaped base plate of the left slider mounting plate 212; the upper left clamp cylinder 215 is arranged on the upper left clamp cylinder mounting plate 214; the left laser positioning plate 218 is arranged on the upper end surface of the fixed end of the left lower clamp cylinder 213, and the left laser positioning lamp 219 is arranged on the left laser positioning plate 218; the telescopic end of the upper left clamp cylinder mounting plate 214 is connected to the upper left clamp mounting plate 220, the upper left clamp 221 is arranged at the end of the upper left clamp mounting plate 220, and the left zipper lower pressing plate 222 is arranged on the upper left clamp 221.

[0117] Specifically, in an embodiment of the present application, the right mounting base plate 301 is disposed on the column of the frame 1; the right motor mounting plate 304 and the right guide rail mounting plate 303 are disposed on the right mounting base plate 301; the right lead screw motor 302 is disposed on the right motor mounting plate 304; the right linear guide rail 307, the right slider limit block 323, and the right origin induction sensor 308 are disposed on the right guide rail mounting plate 303; the right origin induction plate 305 is disposed on the lead screw through a lead screw nut; the right origin induction plate 305, the right zipper clamping device 30 zipper 6, the right tension and compression sensor mounting block 310, the right slider 311, and the right slider mounting plate 312 are connected in sequence; both the right slider mounting plate 312 and the right tension and compression sensor mounting block 310 are connected to the right slider 311; the right lower clamp cylinder 313 is disposed on the right slider mounting plate 312; the right slider mounting plate 312 includes an L-shaped base plate, and the L-shaped base plate is located below the right lower clamp cylinder 313; the telescopic end of the right lower clamp cylinder 313 is connected to the upper right clamp cylinder mounting plate 314 and the right lower clamp 317; a right limit screw 316 is disposed on the right lower clamp 317, and the right limit screw 316 is used to limit and abut against the L-shaped base plate of the right slider mounting plate 312; the upper right clamp cylinder 315 is disposed on the upper right clamp cylinder mounting plate 314; the right laser positioning plate 318 is disposed on the upper end surface of the fixed end of the right lower clamp cylinder 313, and a right laser positioning lamp 319 is disposed on the right laser positioning plate 318; the telescopic end of the upper right clamp cylinder mounting plate 314 is connected to the upper right clamp mounting plate 320, and the upper right clamp 321 is disposed at the end of the upper right clamp mounting plate 320; the left zipper lower pressing plate 222 is disposed on the left zipper clamping device 2, the right zipper clamping device 3, and the frame 1.

[0118] Specifically, in an embodiment of the present application, a tension and compression sensor is disposed on the left zipper clamping device 2 or the right zipper clamping device 3, or a tension and compression sensor is disposed between the left zipper clamping device 2 and the right zipper clamping device 3.

[0119] Specifically, in an embodiment of the present application, a left tension and compression sensor 206 is disposed on the left zipper clamping device 2.

[0120] Specifically, in an embodiment of the present application, the installation relationship of the components of the right zipper clamping device 3 is the same as that of the left zipper clamping device 2, except that there is no left tension and compression sensor 206 in the right zipper clamping device 3, and the right zipper lower pressing plate 322 and the left zipper lower pressing plate 222 in the right zipper clamping device 3 are symmetrically arranged.

[0121] Specifically, in an embodiment of the present application, the working principle is as follows:

[0122] In the initial state, the upper left clamp cylinder 215, the upper right clamp cylinder 315, the lower left clamp cylinder 213, and the lower right clamp cylinder 313 are all in the retracted state; the left slider 211 and the right slider 311 are respectively in the positions detected by the left home sensor 208 and the right home sensor 308; the left tension sensor 206 is in the relaxed initial state;

[0123] In the feeding state, an operator places a zipper head on top of the lower left clamp 217 and below the upper left clamp 221, and then aligns the edge of the zipper head according to the left laser positioning lamp 219 for left - right alignment placement, and performs front - back alignment by aligning the zipper teeth with the edge of the upper left clamp 221;

[0124] After the operator finishes placing a zipper head, the piston rod of the upper left clamp cylinder 215 extends, and at this time, a zipper head is clamped by the upper left clamp 221 and the lower left clamp 217; the left lead screw motor 202 rotates and drives the upper left clamp 221 and the lower left clamp 217 to move to the preset position according to the preset zipper length;

[0125] The operator then places another zipper head on top of the lower right clamp 317 and below the upper right clamp 321, and then aligns the edge of the zipper head according to the right laser positioning lamp 319 for left - right alignment placement, and performs front - back alignment by aligning the zipper teeth with the edge of the upper right clamp 321; after the placement is completed in the same way, the lower right clamp 317 and the upper right clamp 321 clamp the zipper head;

[0126] Next, zipper straightening detection is performed. The right lead screw motor 302 rotates in the reverse direction and drives the right slider 311 to move to the right; during the rightward movement of the right slider 311, the zipper gradually changes from the relaxed state to the straightened state; when the zipper is straightened, the detection value of the left tension sensor 206 reaches the set threshold (corresponding thresholds are set in the controller for different materials of zippers), and the controller considers that the zipper is in the taut state;

[0127] At this time, the computer program inputs an instruction to require the left lead screw motor 202 and the right lead screw motor 302 to move a specified distance simultaneously to align the zipper head with the clothing piece head; when the alignment of the zipper head and the clothing piece head is completed, at this time, the clothing piece will be sent under the zipper; the piston rods of the lower left clamp cylinder 213 and the lower right clamp cylinder 313 extend, and the left limit screw 216 and the right limit screw 316 abut against the left slider mounting plate 212 and the right slider mounting plate 312, causing the upper and lower clamps to descend a specified height, and at this time, the zipper is exactly pressed on the clothing piece; the whole machine drives the zipper rack to move linearly to sew the zipper and the clothing piece;

[0128] When the sewing of one zipper is completed, the left lead screw motor 202 and the right lead screw motor 302 both rotate to drive the left slider 211 and the right slider 311 to move to the positions where they can be detected by the left home sensor 208 and the right home sensor 308; each cylinder resets to the initial state;

[0129] Since a zipper has two sides, one side starts from the left clamp and the other side starts from the right clamp; the working principle of the overall device is the same, only the left and right are mirrored.

[0130] In summary, the purpose of the present utility model is to solve the problem of straightening and positioning in zipper sewing for the existing zipper clamping and straightening device;

[0131] For the drive of the lead screw moving pair, other transmission methods such as gear racks and wire synchronous belts can also be adopted;

[0132] The detection of the straightening condition of the zipper by the tension sensor can be replaced, for example, by detecting the straightness of the zipper to determine whether the zipper is straightened; the upper and lower clamps clamping the zipper by the cylinder can be replaced, such as clamping methods like gear racks;

[0133] This application has the following technical advantages:

[0134] 1. The automatic zipper sewing device can clamp zippers with different length dimensions, place the zippers at the positioning points of the garment pieces, and then sew them;

[0135] 2. The zipper straightening detection device determines whether the zipper is straightened by detecting the tension when the zipper is in a taut state, which can reduce the requirements for manually placing the zipper and ensure that the zippers placed on the garment pieces are all in a straightened state;

[0136] 3. It has a laser indication and a side-edge structure, making it convenient for manual placement of the zipper head;

[0137] 4. It has a function of adjusting the height of the clamp and a zipper lower pressing plate suitable for the thickness of the fabric, enabling the zipper to press down the edge of the fabric;

[0138] 5. Using toothed clamps can provide greater clamping force for the clamps, so that the zipper head will not shift under the straightened state.

[0139] The above is only the preferred implementation manner of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A zipper clamping and straightening device, characterized in that, It includes a driving device, a sliding pair, and a clamping part. The driving device is used to drive the moving part of the sliding pair to move. The clamping part is arranged on the moving part of the sliding pair and is used to clamp the zipper. At least two clamping parts are provided, which are used to clamp the zipper, move to the target position, and straighten or loosen the zipper. A tensile limiter or a tensile sensor is arranged between the driving device and the sliding pair; the tensile limiter or the tensile sensor is used to detect the straightened state of the zipper. The driving device includes a rotating device and a lead screw moving pair; the moving part of the lead screw moving pair is connected to the moving part of the sliding pair. The sliding pair includes a slide rail and a moving part. A pressing part and a lifting part are arranged on the clamping part, and the pressing part is provided with a positioning edge. The pressing part is used to clamp the zipper. The lifting part is used to adjust the height of the clamping part.

2. The zipper clamping and straightening device according to claim 1, characterized in that, A laser positioning device is arranged on the moving part of the sliding pair or on the clamping part, which is used to indicate the positioning reference of the zipper head.

3. The zipper clamping and straightening device according to claim 1, characterized in that, Toothed clamps are arranged on the working surface where the pressing part abuts against the zipper.

4. The zipper clamping and straightening device according to claim 1, characterized in that, A limiting device is arranged between the clamping part and the moving part of the sliding pair, which is used to limit the adjusted height of the clamping part.

5. A zipper clamping and straightening device as claimed in claim 1, characterized in that, A limiting device and a limiting sensor are arranged on the moving path of the moving part of the sliding pair or on the moving path of the moving part of the lead screw moving pair. The limiting device is used to limit the extreme position of the moving path, and the limiting sensor is used to sense the origin target position and the extreme target position.

6. The zipper clamping and straightening device according to claim 1, wherein, The driving device, the sliding pair, and the clamping part are arranged on the frame (1); the left zipper clamping device (2) and the right zipper clamping device (3) include a driving device, a sliding pair, and a clamping part, and the movement trajectories of the zipper clamping parts of the left zipper clamping device (2) and the right zipper clamping device (3) coincide or the extended movement trajectory coincides with another movement trajectory, so that the zipper is straightened and flat after being straightened. The left zipper clamping device (2) and the right zipper clamping device (3) are symmetrically arranged or arranged at intervals along the movement direction.

7. The zipper clamping and straightening device according to claim 1, wherein, The left zipper clamping device (2) includes a left mounting base plate (201), a left lead screw motor (202), a left guide rail mounting plate (203), a left motor mounting plate (204), a left origin induction plate (205), a left linear guide rail (207), a left origin induction sensor (208), a left end support plate (209), a left tension and compression sensor mounting block (210), a left slider (211), a left slider mounting plate (212), a left lower clamp cylinder (213), an upper left clamp cylinder mounting plate (214), an upper left clamp cylinder (215), a left limit screw (216), a left lower clamp (217), a left laser positioning plate (218), a left laser positioning lamp (219), an upper left clamp mounting plate (220), an upper left clamp (221), a left zipper lower pressing plate (222), and a left slider limit block (223). The right zipper clamping device (3) comprises a right mounting base plate (301), a right screw motor (302), a right guide rail mounting plate (303), a right motor mounting plate (304), a right origin sensing plate (305), a right linear guide rail (307), a right origin sensing sensor (308), a right end support plate (309), a right tension and compression sensor mounting block (310), a right slider (311), a right slider mounting plate (312), a right lower clamp cylinder (313), a right upper clamp cylinder mounting plate (314), a right upper clamp cylinder (315), a right limit screw (316), a right lower clamp (317), a right laser positioning plate (318), a right laser positioning light (319), a right upper clamp mounting plate (320), a right upper clamp (321), a right zipper lower pressure plate (322), and a right slider limit block (323); The left mounting base plate (201) is arranged on the column of the frame (1); the left motor mounting plate (204) and the left guide rail mounting plate (203) are arranged on the left mounting base plate (201); the left screw motor (202) is arranged on the left motor mounting plate (204); the left linear guide rail (207), the left slider limit block (223), and the left origin induction sensor (208) are arranged on the left guide rail mounting plate (203); the left origin induction plate (205) is arranged on the screw through the screw nut; the left origin induction plate (205), the left tension and pressure sensor (206), the left tension and pressure sensor mounting block (210), the left slider (211), and the left slider mounting plate (212) are connected in sequence; the left slider mounting plate (212) and the left tension and pressure sensor mounting block (210) are both connected to the left slider (211); the left lower clamp cylinder (213) is arranged on the left slider mounting plate (212); the left slider mounting plate ( The left bottom plate (212) comprises an L bottom plate, which is located below the left lower clamp cylinder (213); the telescopic end of the left lower clamp cylinder (213) is connected to the left upper clamp cylinder mounting plate (214) and the left lower clamp (217); a left limit screw (216) is provided on the left lower clamp (217), and the left limit screw (216) is used to limit the L bottom plate against the left slider mounting plate (212); the left upper clamp cylinder (215) is provided on the left upper clamp cylinder mounting plate ( 214); a left laser positioning plate (218) is arranged on the upper end surface of the fixed end of the left lower clamp cylinder (213), and a left laser positioning lamp (219) is arranged on the left laser positioning plate (218); the telescopic end of the left upper clamp cylinder mounting plate (214) is connected to the left upper clamp mounting plate (220), the end of the left upper clamp mounting plate (220) is arranged with a left upper clamp (221), and the left zipper lower pressure plate (222) is arranged on the left upper clamp (221).

8. A zipper clamping and straightening device according to claim 1, characterized in that, The right mounting base plate (301) is arranged on the column of the frame (1); the right motor mounting plate (304) and the right guide rail mounting plate (303) are arranged on the right mounting base plate (301); the right lead screw motor (302) is arranged on the right motor mounting plate (304); the right linear guide rail (307), the right slider limit block (323), and the right origin induction sensor (308) are arranged on the right guide rail mounting plate (303); the right origin induction plate (305) is connected to the right guide rail mounting plate (303) by the lead screw The nut is arranged on the lead screw; the right origin sensing plate (305), the right zipper clamping device (3)0 zipper (6), the right tension and pressure sensor mounting block (310), the right slider (311), and the right slider mounting plate (312) are connected in sequence; the right slider mounting plate (312) and the right tension and pressure sensor mounting block (310) are both connected to the right slider (311); the right lower clamp cylinder (313) is arranged on the right slider mounting plate (312); the right slider mounting plate (312) includes The L bottom plate is arranged below the lower right clamp cylinder (313); the telescopic end of the lower right clamp cylinder (313) is connected to the upper right clamp cylinder mounting plate (314) and the lower right clamp (317); a right limit screw (316) is arranged on the lower right clamp (317), and the right limit screw (316) is used to limit the L bottom plate against the right slider mounting plate (312); the upper right clamp cylinder (315) is arranged on the upper right clamp cylinder mounting plate (314); the right laser positioning The plate (318) is arranged on the upper end surface of the fixed end of the right lower clamp cylinder (313), and the right laser positioning lamp (319) is arranged on the right laser positioning plate (318); the telescopic end of the right upper clamp cylinder mounting plate (314) is connected to the right upper clamp mounting plate (320), and the right upper clamp (321) is arranged at the end of the right upper clamp mounting plate (320), and the left zipper lower pressure plate (222) is arranged on the left zipper clamping device (2) and the right zipper clamping device (3) frame (1).

9. The zipper clamping and straightening device according to claim 1, characterized in that, A tension and compression sensor is arranged on the left zipper clamping device (2) or the right zipper clamping device (3), or a tension and compression sensor is arranged between the left zipper clamping device (2) and the right zipper clamping device (3).

10. A zipper clamping and straightening device according to claim 1, characterized in that, A left pull-and-press sensor (206) is provided on the left zipper clamping device (2).

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