Fully automatic cloth arc edge sewing device

Abstract

The present invention provides a fully automatic cloth piece arc-aligned edge sewing device, which relates to the field of textile processing. The fully automatic cloth piece arc-aligned edge sewing device comprises a frame, an upper movable table for moving down the processed cloth is slidably disposed above the side of the frame, a lower movable table for moving up the processed cloth is slidably disposed below the side of the frame, a cloth piece after the edge alignment is arranged between the upper movable table and the lower movable table, and sewing grooves for fixing the sewn cloth piece are provided on the upper movable table and the lower movable table. The fully automatic cloth piece arc-aligned edge sewing device can fix the cloth piece after the edge alignment by placing the two ends of the cloth piece after the edge alignment into the gap between the upper movable table and the lower movable table, and then the upper movable table moves down and the lower movable table moves up, and when the cloth piece after the edge alignment is fixed, its edge can be automatically bent into an arc shape and sewn.

Description

Technical Field

[0001] The invention relates to the field of textile processing, in particular to a fully automatic cloth piece arc-shaped edge sewing device. Background Art

[0002] Edge sewing is used for edge binding and lock sewing of fabric pieces. Edge sewing equipment is used for edge sewing of fabric pieces.

[0003] Publication No. CN202010311883.3 discloses a mechanical transmission-based sewing device, including a fixed plate, a first slideway movably connected to the surface of the fixed plate, a first slideway movably connected to the outer side of the opposite side plate, a handle movably connected to the surface of the opposite side plate, a first worm gear movably connected to the inside of the handle, a protrusion movably connected to the outer side of the first connecting shaft, a second fixed block movably connected to the surface of the protrusion, a fixed pin movably connected to the surface of the third fixing piece, a second gear movably connected to the outer side of the third worm gear, and a wire winder movably connected to the outer side of the second gear;

[0004] The above patent structure mainly manually rotates the handle during the arc sewing of the cloth piece, so that the third worm gear drives the edge plate to move and fix the cloth piece, and then sews the cloth piece through the sewing structure on the first fixed block. However, when the above structure fixes the cloth piece through the edge plate, it is inconvenient to fix the folds at different positions of the arc edge of the cloth piece, so that the cloth piece may be misaligned when it is arc-aligned, thereby reducing the quality of arc-aligned sewing. At the same time, after the arc-aligned cloth piece is arc-aligned, it is inconvenient to automatically sew along the arc edge of the cloth piece, and manual adjustment is required, which is inefficient. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a fully automatic arc-shaped edge sewing device for cloth pieces, which solves the problem of inconvenience in fixing wrinkles at different positions of the arc-shaped edge of cloth pieces when sewing the arc-shaped edges of cloth pieces, and solves the problem of automatic arc-shaped sewing of the arc-shaped edges of cloth pieces.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose of fixing the wrinkles at different positions of the arc-shaped edge of a piece of cloth when sewing the arc-shaped edges of the piece of cloth, and automatically sewing the arc-shaped edges of the piece of cloth, the present invention is achieved through the following technical scheme: a fully automatic arc-shaped edge-sewing device for cloth pieces, comprising a frame, an upper movable table for moving down the processed cloth is slidably arranged above the side of the frame, a lower movable table for moving up the processed cloth is slidably arranged below the side of the frame, a piece of cloth after edge alignment is arranged between the upper movable table and the lower movable table, and sewing grooves for fixing the sewn cloth pieces are provided on the upper movable table and the lower movable table;

[0009] An upper electric rod is installed at the top end of the frame, a lower electric rod is installed at the bottom end of the frame, a linear guide groove for guiding the upper moving platform and the lower moving platform is opened on the side of the frame, a guide block is slidably arranged inside the linear guide groove, and bent arc heads are provided at both ends of the cloth piece, and the arc heads form a wrinkled concave and convex surface.

[0010] Preferably, an upper fixed block is provided inside the sewing groove on one side of the upper moving platform, an upper rotating pin is rotatably arranged inside the upper fixed block, an upper universal joint is installed on the end face of the upper rotating pin, an upper spline telescopic shaft is installed between the upper universal joints on both sides, an upper spiral strip is installed on the outer cylinder of the upper spline telescopic shaft, a No. 1 swivel joint is fixed on the side face of the upper fixed block, the No. 1 swivel joints are rotatably connected to each other through pin barrels, an upper chain is formed between multiple groups of No. 1 swivel joints, and a No. 1 electric rod is installed inside the pin barrel, an upper pressure cake is fixed to the bottom end of the No. 1 electric rod, a cone head is installed on the bottom surface of the upper pressure cake, an upper curved piece is rotatably arranged between the pin barrels, and a threading needle is arranged below the upper chain.

[0011] Preferably, the two ends of the upper spline telescopic shaft are rotatably connected to the upper swivel pins on both sides thereof through upper universal joints, the spiral direction of the upper spiral strip is set clockwise, the middle position of the upper chain is rotatably connected to the upper movable platform through a swivel pin, the two ends of the upper bending piece are rotatably connected to the pin barrels on both sides thereof, and the upper bending piece is set one above and one below.

[0012] Preferably, the upper moving platform and the lower moving platform are symmetrically arranged, and a lower side fixed block is provided inside the sewing groove on one side of the lower moving platform, and a lower swivel pin is rotatably arranged inside the lower side fixed block, and a lower universal joint is installed on the end face of the lower swivel pin, and a lower spline telescopic shaft is installed between the lower universal joints on both sides. A lower spiral strip is installed on the outer cylinder of the lower spline telescopic shaft, and a No. 2 swivel joint is installed on the side face of the lower side fixed block, and the No. 2 swivel joints are rotatably connected to each other through pin barrels, and a lower chain is formed between multiple groups of No. 2 swivel joints, and a No. 2 electric rod is installed inside the pin barrel there, and a lower pressure cake is fixed on the top of the No. 2 electric rod, and a conical groove is opened on the upper end face of the lower pressure cake, and a lower bent piece is rotated between the pin barrels there, and a rotary shuttle is arranged above the lower chain.

[0013] Preferably, the two ends of the lower spline telescopic shaft are rotatably connected to the lower swivel pins on both sides through lower universal joints, the spiral direction of the lower spiral strip is set counterclockwise, the middle position of the lower chain is rotatably connected to the lower moving platform through a swivel pin, the lower bent piece is rotatably connected to the pin barrels on both sides, and the lower bent pieces are set one above and one below.

[0014] Preferably, the spiral directions of the upper spiral strip and the lower spiral strip are opposite, the upper spiral strip and the lower spiral strip are located on the upper and lower sides of the cloth piece, the cone head is adapted to the cone groove, the middle part of the upper curved piece is convex upward, and the middle part of the lower curved piece is concave downward, and the upper curved piece and the lower curved piece are adapted to the concave and convex surface.

[0015] Preferably, the sewing groove is provided on the bottom surface of the upper movable platform and the upper surface of the lower movable platform, an arc guide groove is provided inside the sewing groove, a swing groove is provided on the side of the sewing groove, a telescopic swing rod is arranged inside the swing groove, a guide rail is fixed inside the sewing groove, a slider is slid inside the guide rail, a No. 3 electric rod is installed on the slider, adapter blocks are installed on the upper chain and the lower chain, and on the inner wall of the sewing groove, a pneumatic rod is installed between the adapter blocks on both sides, a motor is installed inside the sewing groove, and a driving bevel gear disk is fixed to the output end of the motor, a driven bevel gear ring is installed on the upper and lower turn pins, and the driving bevel gear disk is meshed with the driven bevel gear ring.

[0016] Preferably, the No. 1 electric rod is slidably connected to the arc guide groove on one side of it, the No. 2 electric rod is slidably connected to the arc guide groove on one side of it, a forward and reverse motor is provided inside the swing groove, and the output end of the motor is fixedly connected to the telescopic swing rod, the telescopic swing rod is fixedly connected to the slider, the threading needle is connected to the bottom end of the No. 3 electric rod on one side of it, the rotary shuttle is connected to the top end of the No. 3 electric rod on one side of it, one end of the pneumatic rod is rotatably connected to the inner wall of the sewing groove through a transfer block, and the other end is rotatably connected to the upper chain or the lower chain through the transfer block.

[0017] Preferably, the upper movable platform is fixedly connected to a guide block on one side thereof, and the guide block is fixedly connected to the bottom end of the upper electric rod, and the lower movable platform is fixedly connected to a guide block on one side thereof, and the guide block is fixedly connected to the top end of the lower electric rod.

[0018] Preferably, the cloth piece is U-shaped, the upper part of the cloth piece contacts the bottom surface of the upper movable platform, the lower part of the cloth piece contacts the upper surface of the lower movable platform, and cloth piece edge detection sensors are installed on the bottom surface of the upper movable platform and the upper surface of the lower movable platform.

[0019] (III) Beneficial effects

[0020] The present invention provides a fully automatic cloth arc-shaped edge sewing device, which has the following beneficial effects:

[0021] 1. When the upper rotating pin rotates, the upper spiral strip is driven to rotate through the upper universal joint and the upper spline telescopic shaft. When the lower rotating pin rotates, the lower spiral strip is driven to rotate through the lower universal joint and the lower spline telescopic shaft. When the upper spiral strip and the lower spiral strip rotate, the edge of the cloth piece behind the opposite side can be driven to move in the left and right directions. First, the two ends of the cloth piece are pressed and fixed by the upper and lower pressing cakes at the two ends, and then the different positions in the middle of the cloth piece are pressed and fixed by the upper and lower pressing cakes in the middle position, and the opposite side of the cloth piece is bent into an arc shape following the upper chain and the lower chain, and the upper spiral strip and the lower spiral strip are also bent into an arc shape following the upper chain and the lower chain, so as to sew the cloth piece behind the arc opposite side later.

[0022] 2. The rotation of the upper spiral bar and the lower spiral bar can drive the edge of the cloth piece behind the edge to move in the direction, and correct the deviation of the cloth piece behind the edge during the bending process, so that the curvature of the opposite side of the cloth piece after bending is the same as the curvature of the guide rail, and in the process of bending the opposite side of the cloth piece, wrinkles occur at the edge of the cloth piece and form a concave-convex surface. When the upper chain and the lower chain are bent, the upper chain drives the middle part of the upper bent piece to bulge upward, and the lower chain drives the middle part of the lower bent piece to be concave downward. Therefore, the upper bent piece with the bulge upward in the middle is fitted with the convex part of the concave-convex surface, and the lower bent piece with the concave downward in the middle is fitted with the concave part of the concave-convex surface, so that the edge of the cloth piece with an arc shape at the opposite side can be limited.

[0023] 3. The telescopic swing rod rotates, and the telescopic swing rod drives the No. 3 electric rod to reciprocate on the guide rail through the slider. At the same time, the No. 3 electric rod is started to make the threading needle and the shuttle on the upper and lower sides of the opposite edge of the cloth piece approach each other to work, so that the cloth piece behind the arc opposite edge can be sewn. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 A bottom view of the movable platform on the structure of the present invention;

[0026] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram of the structure at center A;

[0027] Figure 4 A diagram of a mobile station under the structure of the present invention;

[0028] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of the structure at B in the middle;

[0029] Figure 6 Schematic diagram of the upper spiral strip and the lower spiral strip of the structure of the present invention;

[0030] Figure 7It is a schematic diagram of the upper chain and the lower chain of the structure of the present invention;

[0031] Figure 8 It is a diagram of the combination of the chain and the cloth piece on the structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the arc-shaped opposite sides of the structural cloth piece of the present invention.

[0033] Among them, 1. frame; 101. upper electric rod; 102. lower electric rod; 103. linear guide groove; 104. guide block; 2. upper moving platform; 201. upper side fixed block; 202. upper rotation pin; 203. upper universal joint; 204. upper spline telescopic shaft; 205. upper spiral strip; 206. No. 1 rotation joint; 207. upper chain; 208. No. 1 electric rod; 209. upper pressure cake; 210. cone head; 211. upper bending piece; 212. threading needle; 3. lower moving platform; 301. lower side fixed block; 302. lower rotation pin; 303. lower universal joint; 30 4. Lower spline telescopic shaft; 305. Lower spiral strip; 306. No. 2 swivel joint; 307. Lower chain; 308. No. 2 electric rod; 309. Lower pressure cake; 310. Cone groove; 311. Lower bending piece; 312. Shuttle; 4. Cloth piece; 401. Arc head; 402. Concave and convex surface; 5. Sewing groove; 501. Arc guide groove; 502. Swing groove; 503. Telescopic swing rod; 504. Guide rail; 505. Slider; 506. No. 3 electric rod; 507. Adapter block; 508. Pneumatic rod; 509. Driving bevel gear disc; 510. Driven bevel gear ring. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1 -- Fig. 9 The present invention provides a technical solution: a fully automatic cloth piece arc-shaped edge sewing device, comprising a frame 1, an upper movable table 2 for moving down the processed cloth is slidably arranged above the side of the frame 1, a lower movable table 3 for moving up the processed cloth is slidably arranged below the side of the frame 1, a cloth piece 4 after edge alignment is arranged between the upper movable table 2 and the lower movable table 3, and a sewing groove 5 for fixing the sewing cloth piece 4 is opened on the upper movable table 2 and the lower movable table 3;

[0036] An upper electric rod 101 is installed at the top of the frame 1, and a lower electric rod 102 is installed at the bottom of the frame 1. A linear guide groove 103 for guiding the upper moving platform 2 and the lower moving platform 3 is opened on the side of the frame 1. A guide block 104 slides inside the linear guide groove 103. The two ends of the cloth piece 4 are provided with a bent arc head 401, and the arc head 401 forms a wrinkled concave and convex surface 402. The cloth piece 4 after the edge is aligned is placed between the upper moving platform 2 and the lower moving platform 3, and the cloth piece 4 is extended outside the upper chain 207 and the lower chain 307. The upper electric rod 101 and the lower electric rod 102 are started at the same time, and the upper electric rod 101 drives the upper moving platform 2 to move downward through the guide block 104, and the lower electric rod 102 drives the lower moving platform 3 to move upward, so that the cloth piece 4 can be subsequently sewn.

[0037] In this embodiment, an upper fixed block 201 is provided inside the sewing groove 5 on one side of the upper movable table 2, an upper rotating pin 202 is rotatably arranged inside the upper fixed block 201, an upper universal joint 203 is installed on the end surface of the upper rotating pin 202, an upper spline telescopic shaft 204 is installed between the upper universal joints 203 on both sides, an upper spiral strip 205 is installed on the outer cylinder of the upper spline telescopic shaft 204, a No. 1 rotating joint 206 is fixed to the side surface of the upper fixed block 201, the No. 1 rotating joints 206 are rotatably connected to each other through pin barrels, an upper chain 207 is formed between multiple groups of No. 1 rotating joints 206, and a No. 1 electric rod 208 is installed inside the pin barrel, an upper pressing cake 209 is fixed to the bottom end of the No. 1 electric rod 208, a cone head 210 is installed on the bottom surface of the upper pressing cake 209, an upper curved piece 211 is rotatably arranged between the pin barrels, and a threading needle 212 is arranged below the upper chain 207;

[0038] For details, please refer to the attached manual. Figure 3 As shown, when the upper rotation pin 202 rotates, the upper spline telescopic shaft 204 can be driven to rotate through the upper universal joint 203, and then the upper spline telescopic shaft 204 can drive the upper spiral bar 205 to rotate. Therefore, through the rotation of the upper spiral bar 205, the upper part of the cloth piece 4 can be moved and corrected, and through the rotation of the upper universal joint 203 and the extension and retraction of the upper spline telescopic shaft 204, the upper spiral bar 205 can follow the bending of the upper chain 207 and adjust its position, so as to correct the upper part of the cloth piece 4 after the arc opposite side.

[0039] In this embodiment, the two ends of the upper spline telescopic shaft 204 are rotatably connected to the upper rotation pins 202 on both sides thereof through the upper universal joint 203, the spiral direction of the upper spiral strip 205 is set clockwise, the middle position of the upper chain 207 is rotatably connected to the upper moving platform 2 through the rotation pin, the two ends of the upper curved piece 211 are rotatably connected to the pin barrels on both sides thereof, and the upper curved piece 211 is set one up and one down;

[0040] Specifically, when the upper chain 207 bends, the upper rotation pin 202 drives the upper spline telescopic shaft 204 to contract through the upper universal joint 203, and the upper rotation pin 202 can drive the upper spiral bar 205 to rotate through the upper universal joint 203 and the upper spline telescopic shaft 204.

[0041] In this embodiment, the upper moving platform 2 and the lower moving platform 3 are symmetrically arranged, and a lower side fixed block 301 is arranged inside the sewing groove 5 on one side of the lower moving platform 3, and a lower rotating pin 302 is rotatably arranged inside the lower side fixed block 301, and a lower universal joint 303 is installed on the end surface of the lower rotating pin 302, and a lower spline telescopic shaft 304 is installed between the lower universal joints 303 on both sides, and a lower spiral strip 305 is installed on the outer cylinder of the lower spline telescopic shaft 304, and a No. 2 swivel 306 is installed on the side of the lower side fixed block 301, and the No. 2 swivels 306 are rotatably connected to each other through pin barrels, and a lower chain 307 is formed between multiple groups of No. 2 swivels 306, and a No. 2 electric rod 308 is installed inside the pin barrel, and a lower pressure cake 309 is fixed to the top of the No. 2 electric rod 308, and a conical groove 310 is opened on the upper end surface of the lower pressure cake 309, and a lower curved piece 311 is rotatably arranged between the pin barrels, and a rotary shuttle 312 is arranged above the lower chain 307;

[0042] For details, please refer to the attached manual. Figure 6 As shown, when the lower rotation pin 302 rotates, the lower spline telescopic shaft 304 can be driven to rotate through the lower universal joint 303, and then the lower spline telescopic shaft 304 can drive the lower spiral bar 305 to rotate. Therefore, through the rotation of the lower spiral bar 305, the lower part of the cloth piece 4 can be moved and corrected, and through the rotation of the lower universal joint 303 and the extension and retraction of the lower spline telescopic shaft 304, the lower spiral bar 305 can be adjusted to follow the bending of the lower chain 307, so as to correct the lower part of the cloth piece 4 after the arc opposite side.

[0043] In this embodiment, the two ends of the lower spline telescopic shaft 304 are rotatably connected to the lower rotating pins 302 on both sides thereof through the lower universal joint 303, the spiral direction of the lower spiral strip 305 is set counterclockwise, the middle position of the lower chain 307 is rotatably connected to the lower moving platform 3 through the rotating pin, the lower curved piece 311 is rotatably connected to the pin barrels on both sides thereof, and the lower curved piece 311 is set one up and one down;

[0044] Specifically, when the lower chain 307 bends, the lower rotating pin 302 drives the lower spline telescopic shaft 304 to contract through the lower universal joint 303, and the lower rotating pin 302 can drive the lower spiral bar 305 to rotate through the lower universal joint 303 and the lower spline telescopic shaft 304.

[0045] In this embodiment, the spiral directions of the upper spiral strip 205 and the lower spiral strip 305 are opposite, the upper spiral strip 205 and the lower spiral strip 305 are located on the upper and lower sides of the cloth piece 4, the cone head 210 is adapted to the cone groove 310, the middle part of the upper curved piece 211 is convex upward, the middle part of the lower curved piece 311 is concave downward, and the upper curved piece 211 and the lower curved piece 311 are adapted to the concave-convex surface 402;

[0046] Specifically, the cloth piece 4 can be clamped and fixed by the cone head 210 and the cone groove 310, the cloth piece 4 can be corrected by the upper spiral strip 205 and the lower spiral strip 305, and the concave and convex surface 402 of the edge of the cloth piece 4 after bending can be limited by the upper curved piece 211 and the lower curved piece 311.

[0047] In this embodiment, the sewing groove 5 is provided on the bottom surface of the upper moving platform 2 and the upper surface of the lower moving platform 3, an arc guide groove 501 is provided inside the sewing groove 5, a swing groove 502 is provided on the side of the sewing groove 5, a telescopic swing rod 503 is provided inside the swing groove 5, a guide rail 504 is fixed inside the sewing groove 5, a slider 505 is slid inside the guide rail 504, a No. 3 electric rod 506 is installed on the slider 505, an adapter block 507 is installed on the upper chain 207 and the lower chain 307, and on the inner wall of the sewing groove 5, a pneumatic rod 508 is installed between the adapter blocks 507 on both sides, a motor is installed inside the sewing groove 5, and a driving bevel gear disc 509 is fixed to the output end of the motor, a driven bevel gear ring 510 is installed on the upper rotation pin 202 and the lower rotation pin 302, and the driving bevel gear disc 509 is meshed with the driven bevel gear ring 510;

[0048] For details, please refer to the attached manual. Figure 5 As shown, the forward and reverse motor inside the sewing groove 5 can drive the driving bevel gear disc 509 to rotate, and the driving bevel gear disc 509 can drive the upper turn pin 202 or the lower turn pin 302 to rotate by engaging with the driven bevel gear ring 510. Therefore, the upper turn pin 202 can drive the upper spiral bar 205 to rotate through the upper universal joint 203 and the upper spline telescopic shaft 204, and the lower turn pin 302 can drive the lower spiral bar 305 to rotate through the upper universal joint 203 and the lower spline telescopic shaft 304, so that the cloth piece 4 can be corrected by the subsequent rotation of the upper spiral bar 205 and the lower spiral bar 305.

[0049] In this embodiment, the No. 1 electric rod 208 is slidably connected to the arc guide groove 501 on one side thereof, the No. 2 electric rod 308 is slidably connected to the arc guide groove 501 on one side thereof, a forward and reverse motor is arranged inside the swing groove 502, and the output end of the motor is fixedly connected to the telescopic swing rod 503, the telescopic swing rod 503 is fixedly connected to the slider 505, the threading needle 212 is connected to the bottom end of the No. 3 electric rod 506 on one side thereof, the rotary shuttle 312 is connected to the top end of the No. 3 electric rod 506 on one side thereof, one end of the pneumatic rod 508 is rotatably connected to the inner wall of the sewing groove 5 through the adapter block 507, and the other end is rotatably connected to the upper chain 207 or the lower chain 307 through the adapter block 507;

[0050] Specifically, when the upper chain 207 and the lower chain 307 bend around their middle parts, the No. 1 electric rod 208 and the No. 2 electric rod 308 slide inside the arc guide groove 501, so the No. 1 electric rod 208 and the No. 2 electric rod 308 can be guided in an arc-shaped limit through the arc guide groove 501, and the forward and reverse motor inside the swing groove 502 can drive the telescopic swing rod 503 to reciprocate, and the telescopic swing rod 503 can drive the slider 505 to reciprocate on the guide rail 504, so the slider 505 can drive the threading needle 212 and the shuttle 312 to move synchronously through the No. 3 electric rod 506, so as to sew the cloth piece 4 after the edge is aligned.

[0051] In this embodiment, the upper moving platform 2 is fixedly connected to the guide block 104 on one side thereof, and the guide block 104 is fixedly connected to the bottom end of the upper electric rod 101, and the lower moving platform 3 is fixedly connected to the guide block 104 on one side thereof, and the guide block 104 is fixedly connected to the top end of the lower electric rod 102;

[0052] Specifically, the upper electric rod 101 can drive the upper moving platform 2 to move vertically downward through the guide block 104, and the lower electric rod 102 can drive the lower moving platform 3 to move vertically upward through the guide block 104, so that the upper moving platform 2 and the lower moving platform 3 can be brought closer to each other.

[0053] In this embodiment, the cloth piece 4 is in a U shape, the upper part of the cloth piece 4 contacts the bottom surface of the upper moving platform 2, the lower part of the cloth piece 4 contacts the upper surface of the lower moving platform 3, and the cloth piece 4 is installed with edge detection sensors on the bottom surface of the upper moving platform 2 and the upper surface of the lower moving platform 3;

[0054] Specifically, when the upper movable table 2 moves downward, the upper part of the cloth piece 4 can be pressed down, and when the lower movable table 3 moves upward, the lower part of the cloth piece 4 can be lifted up, so that the upper part of the cloth piece 4 can be fitted with the lower part, so that the two parts after the edges are fitted can be subsequently sewn in an arc shape, and the edge detection sensor, each motor, each pneumatic rod and each electric rod are electrically connected to the external controller, and the specific position of the cloth is detected by the sensor, and the position of the cloth piece 4 is adjusted by the forward or reverse rotation of the upper spiral bar 205 and the lower spiral bar 305, so that the two layers of cloth are easier to align, so as to improve the edge sewing processing quality of the cloth piece 4.

[0055] The working principle and use process of the present invention are as follows: the cloth piece 4 after the edge is aligned is placed between the upper moving platform 2 and the lower moving platform 3, and the cloth piece 4 is extended out of the upper chain 207 and the lower chain 307, and the upper electric rod 101 and the lower electric rod 102 are started at the same time, and the upper electric rod 101 drives the upper moving platform 2 to move downward through the guide block 104, and the lower electric rod 102 drives the lower moving platform 3 to move upward, so that the upper moving platform 2 approaches the cloth piece 4 from above, and the lower moving platform 3 approaches the cloth piece 4 from below. When the upper spiral bar 205 and the lower spiral bar 305 contact the cloth piece 4, the forward and reverse motors arranged in the sewing groove 5 are started to drive the driving bevel gear disc 509 to rotate, and the driving bevel gear disc 509 can drive the upper rotating bevel gear disc 509 to rotate by meshing with the driven bevel gear ring 510. The pin 202 or the lower rotating pin 302 rotates, and when the upper rotating pin 202 rotates, the upper spiral strip 205 is driven to rotate through the upper universal joint 203 and the upper spline telescopic shaft 204. Similarly, when the lower rotating pin 302 rotates, the lower spiral strip 305 is driven to rotate through the lower universal joint 303 and the lower spline telescopic shaft 304. When the upper spiral strip 205 and the lower spiral strip 305 rotate, the edge of the cloth piece 4 behind the opposite side can be driven to move in the left and right directions. Then, the No. 1 electric rod 208 at both ends of the upper chain 207 and the No. 2 electric rod 308 at both ends of the lower chain 307 are started first, so that the two ends of the cloth piece 4 are pressed and fixed by the upper pressing cakes 209 and the lower pressing cakes 309 at both ends, and the pneumatic rods 508 at both ends of the upper chain 207 and the lower chain 307 are started, so that the upper chain 207 and the lower chain 307 are pressed and fixed. The two ends of the chain 307 rotate outward first, and then the No. 1 electric rod 208, the No. 2 electric rod 308 and the pneumatic rod 508 at the middle position are started, so that the extension length of the pneumatic rod 508 arranged from the outside to the inside is reduced in sequence, so that the upper chain 207 and the lower chain 307 are bent. During the bending process, the upper pressing cake 209 and the lower pressing cake 309 at the middle position press and fix the different positions in the middle of the cloth piece 4, and make the opposite sides of the cloth piece 4 follow the upper chain 207 and the lower chain 307 to bend into an arc shape, so that the upper spiral strip 205 and the lower spiral strip 305 also follow the upper chain 207 and the lower chain 307 to bend into an arc shape. In this process, the opposite edge detection sensor can detect the uniformity of the opposite edges of the upper and lower layers of the cloth piece 4, and the controller feeds back the information to each electric processing unit. The device, and the rotation of the upper spiral bar 205 and the lower spiral bar 305 can drive the edge of the cloth piece 4 behind the edge to move in the direction, so the cloth piece 4 behind the opposite edge can be corrected during the bending process, and the curvature of the opposite side of the cloth piece 4 after bending is made to be the same as the curvature of the guide rail 504, and in the process of bending the opposite side of the cloth piece 4, wrinkles occur at the edge of the cloth piece 4 and form a concave-convex surface 402. When the upper chain 207 and the lower chain 307 are bent, the upper chain 207 drives the middle part of the upper curved piece 211 to bulge upward, and the lower chain 307 drives the middle part of the lower curved piece 311 to be concave downward. Therefore, the upper curved piece 211 with the middle part bulging upward fits with the convex part of the concave-convex surface 402, and the lower curved piece 311 with the middle part concave downward fits with the concave part of the concave-convex surface 402.Therefore, the edge of the arc-shaped cloth piece 4 at the opposite side can be limited, and then the forward and reverse motors set in the swing slot 502 are started to drive the telescopic swing rod 503 to rotate, and the telescopic swing rod 503 drives the third electric rod 506 to reciprocate on the guide rail 504 through the slider 505. At the same time, the third electric rod 506 is started to make the threading needle 212 and the rotary shuttle 312 on the upper and lower sides of the opposite side of the cloth piece 4 approach each other to work, so that the cloth piece 4 after the arc-shaped opposite side can be automatically sewn.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic cloth arc-shaped edge sewing device, comprising a frame (1), Features: An upper movable platform (2) for moving the processed cloth downwards is slidably arranged above the side of the frame (1); a lower movable platform (3) for moving the processed cloth upwards is slidably arranged below the side of the frame (1); a cloth piece (4) after aligning the edges is arranged between the upper movable platform (2) and the lower movable platform (3); and sewing grooves (5) for fixing the sewing cloth piece (4) are provided on the upper movable platform (2) and the lower movable platform (3); An upper electric rod (101) is installed at the top end of the frame (1), a lower electric rod (102) is installed at the bottom end of the frame (1), a linear guide groove (103) for guiding the upper movable platform (2) and the lower movable platform (3) is opened on the side of the frame (1), a guide block (104) is slidably arranged inside the linear guide groove (103), and two ends of the cloth piece (4) are provided with bent arc heads (401), and the arc heads (401) form a wrinkled concave-convex surface (402); An upper fixed block (201) is provided inside the sewing groove (5) on one side of the upper moving platform (2), an upper rotating pin (202) is rotatably arranged inside the upper fixed block (201), an upper universal joint (203) is installed on the end surface of the upper rotating pin (202), an upper spline telescopic shaft (204) is installed between the upper universal joints (203) on both sides, an upper spiral strip (205) is installed on the outer cylinder of the upper spline telescopic shaft (204), and a first rotating joint (206) is fixed to the side surface of the upper fixed block (201). ), the No. 1 rotating joints (206) are rotatably connected to each other via a pin barrel, an upper chain (207) is formed between multiple groups of the No. 1 rotating joints (206), and a No. 1 electric rod (208) is installed inside the pin barrel, an upper pressure cake (209) is fixed to the bottom end of the No. 1 electric rod (208), a cone head (210) is installed on the bottom surface of the upper pressure cake (209), an upper curved piece (211) is rotatably provided between the pin barrels, and a threading needle (212) is provided below the upper chain (207); The upper movable platform (2) and the lower movable platform (3) are symmetrically arranged. A lower fixed block (301) is provided inside a sewing groove (5) on one side of the lower movable platform (3). A lower rotating pin (302) is rotatably arranged inside the lower fixed block (301). A lower universal joint (303) is installed on the end surface of the lower rotating pin (302). A lower spline telescopic shaft (304) is installed between the lower universal joints (303) on both sides. A lower spiral strip (305) is installed on the outer cylinder of the lower spline telescopic shaft (304). The side surface of the lower fixed block (301) is provided with a lower spiral strip (305). A No. 2 rotating joint (306) is installed, and the No. 2 rotating joints (306) are rotatably connected to each other through a pin barrel, and a lower chain (307) is formed between multiple groups of the No. 2 rotating joints (306), and a No. 2 electric rod (308) is installed inside the pin barrel, and a lower pressure cake (309) is fixed on the top of the No. 2 electric rod (308), and a cone groove (310) is opened on the upper end surface of the lower pressure cake (309), and a lower curved piece (311) is rotatably provided between the pin barrels, and a rotary shuttle (312) is provided above the lower chain (307); The sewing groove (5) is provided on the bottom surface of the upper movable platform (2) and the upper surface of the lower movable platform (3); an arc-shaped guide groove (501) is provided inside the sewing groove (5); a swing groove (502) is provided on the side of the sewing groove (5); a telescopic swing rod (503) is provided inside the swing groove (502); a guide rail (504) is fixed inside the sewing groove (5); a slider (505) is slidably provided inside the guide rail (504); a No. 3 electric rod (505) is installed on the slider (505); 06), an adapter block (507) is installed on the upper chain (207) and the lower chain (307), and on the inner wall of the sewing groove (5), and a pneumatic rod (508) is installed between the adapter blocks (507) on both sides, a motor is installed inside the sewing groove (5), and a driving bevel gear disk (509) is fixed to the output end of the motor, and a driven bevel gear ring (510) is installed on the upper rotating pin (202) and the lower rotating pin (302), and the driving bevel gear disk (509) is meshed with the driven bevel gear ring (510).

2. The fully automatic cloth arc-shaped edge sewing device according to claim 1, Features: The two ends of the upper spline telescopic shaft (204) are rotatably connected to the upper rotation pins (202) on both sides thereof via the upper universal joint (203); the spiral direction of the upper spiral strip (205) is arranged clockwise; the middle position of the upper chain (207) is rotatably connected to the upper moving platform (2) via the rotation pin; the two ends of the upper curved piece (211) are rotatably connected to the pin barrels on both sides thereof; and the upper curved piece (211) is arranged one above the other.

3. The fully automatic cloth arc-shaped edge sewing device according to claim 1, Features: The two ends of the lower spline telescopic shaft (304) are rotatably connected to the lower rotating pins (302) on both sides thereof via the lower universal joint (303); the spiral direction of the lower spiral strip (305) is arranged counterclockwise; the middle position of the lower chain (307) is rotatably connected to the lower moving platform (3) via the rotating pin; the lower curved piece (311) is rotatably connected to the pin barrels on both sides thereof, and the lower curved piece (311) is arranged one above the other.

4. The fully automatic cloth arc-shaped edge sewing device according to claim 1, Features: The upper spiral strip (205) and the lower spiral strip (305) have opposite spiral directions. The upper spiral strip (205) and the lower spiral strip (305) are located at the upper and lower sides of the cloth piece (4). The cone head (210) is matched with the cone groove (310). The middle part of the upper curved piece (211) is convex upwards, and the middle part of the lower curved piece (311) is concave downwards. The upper curved piece (211) and the lower curved piece (311) are matched with the concave-convex surface (402).

5. The fully automatic cloth arc-shaped edge sewing device according to claim 1, Features: The first electric rod (208) is slidably connected to the arc-shaped guide groove (501) on one side thereof, the second electric rod (308) is slidably connected to the arc-shaped guide groove (501) on one side thereof, a forward and reverse motor is arranged inside the swing groove (502), and the output end of the motor is fixedly connected to the telescopic swing rod (503), the telescopic swing rod (503) is fixedly connected to the slider (505), the threading needle (212) is connected to the bottom end of the third electric rod (506) on one side thereof, the rotary shuttle (312) is connected to the top end of the third electric rod (506) on one side thereof, one end of the pneumatic rod (508) is rotatably connected to the inner wall of the sewing groove (5) through a transfer block (507), and the other end is rotatably connected to the upper chain (207) or the lower chain (307) through the transfer block (507).

6. The fully automatic cloth arc-shaped edge sewing device according to claim 1, Features: The upper moving platform (2) is fixedly connected to a guide block (104) on one side thereof, and the guide block (104) is fixedly connected to the bottom end of the upper electric rod (101); the lower moving platform (3) is fixedly connected to a guide block (104) on one side thereof, and the guide block (104) is fixedly connected to the top end of the lower electric rod (102).

7. The fully automatic cloth arc-shaped edge sewing device according to claim 1, Features: The cloth piece (4) is in a U shape, the upper portion of the cloth piece (4) contacts the bottom surface of the upper movable platform (2), the lower portion of the cloth piece (4) contacts the upper surface of the lower movable platform (3), and edge detection sensors for the cloth piece (4) are installed on the bottom surface of the upper movable platform (2) and the upper surface of the lower movable platform (3).

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