CN220335438U - Fabric pulling mechanism and fabric pulling system for material sewing device - Google Patents

Abstract

The utility model provides a cloth pulling mechanism and a cloth pulling system for a material sewing device, wherein the cloth pulling mechanism comprises a thirteenth driving mechanism, a fourteenth driving mechanism, a fixed clamping plate and a movable clamping plate; the movable clamping plate is rotatably arranged on the fixed clamping plate, and the movable clamping plate is driven to rotate by the fourteenth driving mechanism, so that an opening or a closing is formed between the movable clamping plate and the fixed clamping plate; the thirteenth driving mechanism is used for driving the fixed clamping plate to move forwards and backwards. The utility model is used for the occasion of sewing and cutting materials such as quilts, bedsheets and the like, and the materials are leveled by the cloth spreading mechanism, so that the sewing and cutting are convenient.

Description

Fabric pulling mechanism and fabric pulling system for material sewing device

Technical Field

The utility model belongs to the technical field of special equipment for home textile production, and mainly relates to a cloth pulling mechanism and a cloth pulling system for a material sewing device, which can be used for producing quilts, quilt covers and the like.

Background

The quilt is a common daily article and is generally formed by stitching four sides of one layer of cotton material and two layers of cloth.

CN2020218857299 discloses a full-automatic quilt sewing production line, which comprises a cotton material frame, wherein a rotatable cotton roll is arranged in the cotton material frame; the cotton material transmission channel is arranged at one side of the cotton material rack; two sequentially arranged cloth racks are positioned below the cotton material transmission channel; the two cloth racks are provided with rotatable cloth rolls; the cloth transmission assembly is positioned at one side of the cloth frame; the labeling mechanism is arranged at one side of the cloth rack of the cotton rack; the transverse stitching mechanism is arranged at one side of the labeling mechanism, and the tail end of the cotton material transmission channel is arranged above the transverse stitching mechanism; the steering mechanism is arranged at one side of the transverse stitching mechanism; the longitudinal stitching mechanism is arranged at one side of the steering mechanism; the utility model can automatically carry out transverse sewing on cotton materials and two fabrics with labels, and the cotton materials are sewn in a seam pressing mode when in transverse sewing, and then the fabrics are conveyed to a longitudinal sewing mechanism for longitudinal sewing after being turned by a turning mechanism, so that the processing is completed. The quilt sewing production line cannot ensure the deviation of cotton and cloth in the transmission process. The transverse stitching is carried out after being transmitted by the steering mechanism, and then the longitudinal stitching is carried out, so that the structure is complex and the occupied area is large.

Disclosure of Invention

The utility model provides a cloth pulling mechanism, which is used for leveling materials when materials such as quilts, bedsheets and the like are sewn and cut, so that the materials are convenient to stitch and cut.

The utility model provides a cloth spreading mechanism which comprises a thirteenth driving mechanism, a fourteenth driving mechanism, a fixed clamping plate and a movable clamping plate; the movable clamping plate is rotatably arranged on the fixed clamping plate, and the movable clamping plate is driven to rotate by the fourteenth driving mechanism, so that an opening or a closing is formed between the movable clamping plate and the fixed clamping plate; the thirteenth driving mechanism is used for driving the fixed clamping plate to move forwards and backwards. According to the utility model, the thirteenth driving mechanism is used for driving the fixed clamping plate and the movable clamping plate to integrally move back and forth so as to approach or separate from the material, and when the material is approaching, the fourteenth driving mechanism drives the movable clamping plate to rotate until the movable clamping plate is closed with the fixed clamping plate, so that the material is clamped, and after the material is stitched, the movable clamping plate is driven to rotate to form an opening, so that the material is loosened.

For intelligent control of the closing of the fixed clamping plate and the movable clamping plate, the utility model further comprises a detection device, the thirteenth driving mechanism drives the detection device to move together with the fixed clamping plate, and when the detection device detects materials, the fourteenth driving mechanism drives the movable clamping plate and the fixed clamping plate to be closed so as to clamp the materials.

Preferably, the device further comprises a first bracket, the fixed clamping plate and the detection device are both arranged on the first bracket, and the thirteenth driving mechanism drives the first bracket to move forwards and backwards.

In order to avoid interference with the sewing needle of the material sewing device, an avoidance gap is formed in the closing position of the fixed clamping plate and the movable clamping plate, the sewing needle enters and exits the avoidance gap, and the edge of the material is sewn in the avoidance gap.

The utility model also provides a cloth pulling system for the material sewing device, which comprises at least 2 cloth pulling mechanisms provided by the utility model, wherein the 2 cloth pulling mechanisms are oppositely arranged and are respectively used for clamping one side of a material, the cloth pulling mechanisms clamp the material from two sides, and after the material is clamped from two sides, the thirteenth driving mechanisms drive the movable clamping plate and the fixed clamping plate to integrally move backwards to tighten the material.

Preferably, the utility model comprises 4 cloth pulling mechanisms, wherein each 2 cloth pulling mechanisms are in a group, the 2 cloth pulling mechanisms are arranged in opposite directions, the 2 cloth pulling mechanisms in each group of cloth pulling mechanisms are respectively positioned at two sides of a cutting line of a material, the material is leveled by the 4 cloth pulling mechanisms, a gap is reserved between the 2 cloth pulling mechanisms in each group of cloth pulling mechanisms, and the material is cut by a cutter from the middle.

Preferably, at the closing position of the fixed clamping plate and the movable clamping plate of the cloth pulling mechanism, an avoidance gap is formed in the fixed clamping plate and the movable clamping plate, and the sewing needle of the material sewing device can sew the edges of materials in the avoidance gap.

Preferably, the automatic sewing machine further comprises a controller, wherein the controller is used for controlling the thirteenth driving mechanism and the fourteenth driving mechanism to act, the controller is further connected with the detecting device, when the detecting device detects the edge of a material, the controller controls the thirteenth driving mechanism to stop and controls the fourteenth driving mechanism to act, so that the movable clamping plate and the fixed clamping plate are closed to clamp the material, at the moment, the edge of the material is positioned in the avoidance gap, and the edge sewing needle is used for sewing the edge in the avoidance gap, so that the edge cannot be sewn when the clamping plate clamps the edge.

The cloth pulling mechanism provided by the utility model can move back and forth to clamp and tighten the cloth, so that the cloth is pulled flat for stitching and cutting. According to the utility model, the avoidance gap is arranged on the closing position of the fixed clamping plate and the movable clamping plate, when the tension is applied, the cloth edge is positioned in the avoidance gap, the sewing needle can enter and exit the avoidance gap, and the cloth edge is sewn in the avoidance gap, so that the leakage is avoided.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a front view of the present application;

FIG. 3 is a schematic view of the structure of the material rack and coil feed conveyor of the present application;

FIG. 4 is a cross-sectional view of FIG. 3 of the present application;

FIG. 5 is a schematic structural view of the material rack of the present application;

FIG. 6 is a side view of the rack of the present application;

FIG. 7 is a front view of the introduction device and lateral suturing device of the present application;

FIG. 8 is a schematic structural view of the deflection correcting roller of the present application;

FIG. 9 is a partial perspective view of the deflection correcting roller of the present application;

FIG. 10 is a schematic structural view of the lateral suturing device of the present application;

FIG. 11 is a front view of the lateral suturing device of the present application;

FIG. 12 is a schematic view of the back side structure of the lateral suturing device of the present application;

FIG. 13 is a front view of the transitional delivery device and longitudinal suturing device of the present application;

FIG. 14 is a schematic view of the structure of the longitudinal suturing device of the present application;

FIG. 15 is a schematic view of the structure of the suturing head of the present application;

FIG. 16 is a schematic view of the bottom structure of the suturing head of the present application;

FIG. 17 is a schematic structural view of the shuttle and longitudinal thread cutting mechanism of the present application;

FIG. 18 is a schematic view of the longitudinal suturing needle of the present application (tape drive);

FIG. 19 is a schematic view of the longitudinal suturing needle of the present application (without actuation);

FIG. 20 is a schematic view of the structure of the cloth pulling mechanism of the present application;

FIG. 21 is a perspective view of the deployment mechanism of the present application;

FIG. 22 is a graph of the cutting deck and first cutter position relationship of the present application.

In the figure: 10-a material rack; 101-a base; 102-a movable frame; 103-a first slide rail; 104-a first slider; 105-a first drive mechanism; 106-a first roller; 107-coiling materials; 108-a coil stock limiting mechanism; 109-a first sensing mechanism; 110-a second sensing mechanism; 111-a second drive mechanism;

20-coil conveying device; 201-a conveying platform; 202-a second roller; 203-stretching rollers; 204-a first side detection mechanism; 205-a second side detection mechanism; 206-a first dual roller conveyor mechanism; 207-stretching rollers;

30-a transverse stitching device; 301-a bottom plate; 302-vertical plate; 303-a first sewing plate; 304-a first sewing needle; 305-fourth drive mechanism; 306-a first suture shuttle; 307-tensioning wheel; 308-first inductive patch; 309-a first detection mechanism; 310-a wire cutting mechanism; 311-lifting mechanism; 312-belt conveyor mechanism; 313-a fifth drive mechanism; 314-cutting the platform; 315-a first cutter; 316-sixth drive mechanism; 317-a material sucking mechanism; 318-sharpening stone; 319-wire holder; 320-cutter grooves; 321-a third slider; 322-third slide rail; 323-cutting edge; 324-assembling a plate; 325-a first drive wheel; 326-a second drive wheel; 327-mounting plates; 328-pulley; 329-a belt;

40-longitudinal suturing means; 401-stitching a platform; 4011-an input section; 4012-an output section; 4013-an abutment plate; 402-fourth rail; 403-moving rack; 404-seventh drive mechanism; 405-a cloth pulling mechanism; 451-thirteenth drive mechanisms; 452-a first scaffold; 453-fixed splint; 454-moving splints; 455-fourteenth drive mechanisms; 456-detecting means; 457-moving the splint spindle; 458-avoiding the gap; 406 a clamping mechanism; 461-compression bar; 462-eighth drive mechanism; 407-a stretching mechanism; 471-roller; 472-side panels; 473-connecting shaft; 474-a sixteenth drive mechanism; 475-docking platform; 476-a second scaffold; 408-a mobile frame detection mechanism; 409-a ninth drive mechanism; 410-a second inductive patch; 411-a second sewing panel; 412-a second suture shuttle; 413-tenth drive mechanism; 414-a second cutter; 415-eleventh drive mechanism; 416-moving knife; 417-stationary knife; 418-twelfth drive mechanism; 419-a second detection mechanism; 420-a second sewing needle; 421-a first material detection device; 422-a second material detection device; 423-inclined plane; 424-fifteenth drive mechanisms;

50-a controller;

60-introducing means; 601-a second dual roller conveyor mechanism; 602, a correction roller; 62.1-central axis; 62.2-base; 62.3-a first bearing; 62.4-rotating shaft; 62.5-gear; 62.6-driving belt; 62.7-a third drive mechanism; 62.8-a second rail; 62.9-a second slider; 62.10-roll surface; 62.11-axial drive mechanism; 62.12-a third side detection mechanism; 62.13-fourth side detection mechanism; 62.14-fifth side detection means; 603-stretching roller sets;

70-transition conveying device; 701-a third dual roller conveyor mechanism; 702—a conveying roller; 703-tensioning roller; 704-a fourth dual roller conveyor mechanism; 705-output board; 706-balancing weight.

Detailed Description

As shown in fig. 1-2, the material stitching apparatus provided herein includes a material rack 10, a coil material conveying device 20, an introducing device 60, a transverse stitching device 30, a transition conveying device 70, and a longitudinal stitching device 40, which are sequentially arranged. The present application also provides for a controller 50 to control the operation of the apparatus.

As shown in fig. 4, 5, and 6, the material rack 10 includes a base 101 and a movable rack 102 movably provided on the base 101. Specifically, a first sliding rail 103 is arranged on the base 101 along the length direction, a first sliding block 104 is arranged on the movable frame 102, the first sliding rail 103 is matched with the first sliding block 104, a first driving mechanism 105 is connected between the base 101 and the movable frame 102, and the first driving mechanism 105 drives the movable frame 102 to move along the first sliding rail 103. The movable frame 102 is rotatably provided with a plurality of first rollers 106, the first rollers 106 are arranged in an arc shape, so that arc-shaped grooves for placing the coil stock 107 are formed, and the first rollers 106 are driven by a second driving mechanism 111 to rotate around the rotation axes of the first rollers 106. Coil stock limiting mechanisms 108 are arranged at two ends of the arc-shaped groove or two ends of the first roller 106, and the coil stock limiting mechanisms 108 can move along the length direction of the material rack to a proper position and can be locked by locking mechanisms such as bolts. The moving position of the coil stock limiting mechanism 108 mainly considers the length of the coil stock, so that end limiting is performed on the coil stock without influencing unreeling. The movable frame 102 is provided with a first sensing mechanism 109 and a second sensing mechanism 110 which are arranged in a height difference manner, and the first sensing mechanism 109 is higher than the second sensing mechanism 110. The first sensing mechanism 109 is used to detect whether there is material or whether there is little coil material left, and if the first sensing mechanism does not detect coil material, it indicates that the coil material on the material rack is used up or left little, and below the limit position, the machine is stopped to put in a new coil material. The second sensing mechanism 110 is used for controlling the material rack to output coiled materials.

As shown in fig. 3-4, this embodiment provides 3 racks, two of which are used to hold cloth and the other is used to hold cotton for producing quilts. If the material is used for producing the quilt cover, 2 material racks are arranged. In particular, a plurality of material racks are arranged, and according to production requirements, a plurality of material racks are arranged after a plurality of coiled materials are needed to be placed.

As shown in fig. 1, 2, 3 and 4, a coil conveying device 20 is disposed above the material rack, and in this embodiment, an upper layer of coil conveying device and a lower layer of coil conveying device are respectively used for conveying cloth. Each layer of coil conveying device 20 comprises a conveying platform 201, and second rollers 202 are arranged at two ends of the conveying platform 201. The input end of the conveying platform is further provided with a spreader roller 203 for spreading the cloth without folding or wrinkling, the spreader roller 203 shown in fig. 3 being located outside the second roller 202 of the input end. The input end side of the conveying platform 201 is provided with a first side detecting mechanism 204 and a second side detecting mechanism 205 for detecting the sides of cloth, so that the conveyed sides of the cloth are kept between 2 cloth side detecting mechanisms, when the sides deviate from positions between 2 cloth side detecting mechanisms, the positions of the coiled materials placed on the movable frame are adjusted left and right through the controller, and the cloth on the conveying device is rectified.

The first driving mechanism 105, the first side detection mechanism 204, and the second side detection mechanism 205 are connected to the controller 50. The control method for the deviation correction of the material rack comprises the following steps: when the first side detecting mechanism 204 on the inner side cannot detect the cloth, it indicates that the edge of the cloth is located on the inner side of the first side detecting mechanism 204, and the first driving mechanism 105 is controlled to drive the movable frame 102 to move toward the second side detecting mechanism 205 on the outer side until the first side detecting mechanism 204 detects the cloth. When the second lateral detecting mechanism 205 on the outer side detects the fabric, it indicates that the edge of the fabric is located at the second lateral detecting mechanism 205 or located on the outer side of the second lateral detecting mechanism 205, and the first driving mechanism 105 is controlled to drive the movable frame 102 to move towards the first lateral detecting mechanism 204 on the inner side until the second lateral detecting mechanism 205 does not detect the fabric.

The output end of the conveying platform 201 is provided with a first double-roller conveying mechanism 206, one roller in the first double-roller conveying mechanism 206 is rotatably installed on the frame, the other roller can be abutted against or separated from the other roller, when the two rollers are separated, cloth can pass through between the two rollers, and then the two rollers are abutted against to clamp the cloth so as to convey the cloth forwards. The output end of the coil conveyor 20 is provided with a spreader roller 207, the spreader roller 207 being shown in fig. 3 outside the first 205, second 202 two-roller conveyor of the output end.

The second driving mechanism 111, the first sensing mechanism 109, and the second sensing mechanism 110 are connected to the controller 50. Referring to fig. 2 and 4, the feeding control method of the material rack 10 is as follows: the cloth and cotton materials are pulled to the position of the transverse stitching device 30, the machine is started initially, the second driving mechanism 111 drives the first roller 106 to rotate, the first roller 106 rotates to unwind the coiled materials, and the second sensing mechanism 110 stops rotating after rotating for a certain time when sensing the materials (cloth or fabric), so that the materials droops to a certain distance below the second sensing mechanism 110. In the subsequent use process, the material that droops is gradually conveyed forward, when the second sensing mechanism 110 can not sense the material, the second driving mechanism 111 stops rotating after rotating for a certain time, so that the material droops to a distance below the second sensing mechanism 110, and the operation is repeated. When the first sensing mechanism 109 senses that the material is not available, the coiled material on the material rack is used up, the material stitching device is stopped, and the material stitching device is started after being manually added again. In this embodiment, the first roller 106 is used for unreeling, the coil is placed on the first roller, the coil is coreless, and if the coil is cored, the coil can be unreeled by passing through the coil through a rotating shaft, and the rotating shaft is used for driving the coil to rotate.

As shown in fig. 1, 2 and 7, an introducing device 60 is further provided between the coil feeding device 20 and the transverse stitching device 30. The introducing device 60 comprises a second double-roller conveying mechanism 601, a deviation correcting roller 602 and a stretching roller group 603 which are positioned at the front end of the second double-roller conveying mechanism 601. In fig. 7 there are shown 2 sets of deflection cylinders and 3 sets of spreader cylinders 603 corresponding to the rolls on the 3 racks of this embodiment. After being output from the coil stock conveying device 20 positioned at the upper layer, cloth on one material frame sequentially passes through the deviation correcting roller 602 and the stretching roller group 603 positioned at the upper layer to enter the second double-roller conveying mechanism 601, and after being output from the coil stock conveying device 20 positioned at the lower layer, cloth on the other material frame sequentially passes through the deviation correcting roller 602 and the stretching roller group 603 positioned at the lower layer to enter the second double-roller conveying mechanism 601. Cotton material is output from the frame 10 through the lowermost spreader roll set 603 into the second dual roll conveyor 601. The three-layer rolls are stacked together at a second dual-roll conveyor 601 and are fed forward by the second dual-roll conveyor 601. The stretching roller set 603 has two stretching rollers, or one stretching roller and one common roller, and the coil passes between the two rollers to stretch the coil.

As shown in fig. 8 and 9, the deflection correcting roller 602 includes a central shaft 62.1, both ends of the central shaft 62.1 are mounted on a base 62.2, and the base 62.2 is mounted on a frame. The outer periphery of the central shaft 62.1 is rotatably provided with a rotating shaft 62.4 through a first bearing 62.3, one end of the rotating shaft 62.4 is connected with a gear 62.5, and the gear 62.5 is in transmission connection with a third driving mechanism 62.7 through a transmission belt 62.6. The third drive mechanism 62.7 drives the rotary shaft 62.4 to rotate about the central axis. The outer circumference of the rotating shaft 62.4 is uniformly arranged with a plurality of second guide rails 62.8 in the circumferential direction, the second guide rails 62.8 being parallel to the axis of the rotating shaft 62.4. The second rail 62.8 is provided with a second slider 62.9, and the second slider 62.9 is slidable along the length direction of the second rail. The second slider 62.9 is connected with a roller surface 62.10, and a plurality of roller surfaces 62.10 are circumferentially arranged and can rotate along with the rotating shaft 62.4 and axially move back and forth. For stability of axial movement, two second guide rails 62.8 are provided in a group, each group of second guide rails is provided with a second sliding block 62.9, the number of the second guide rails is twice that of the roller surfaces, and the number of the second guide rails 62.8 is even. One end far away from the motor 62.7 is provided with a roller surface axial driving mechanism 62.11 which can drive the roller surface to axially move along the guide rail so as to rectify the cloth conveyed on the rectifying roller.

One end of the deviation correcting roller is provided with a third cloth side edge detection mechanism 62.12 positioned on the outer side and a fourth side edge detection mechanism 62.13 positioned on the inner side, and the other end of the deviation correcting roller is provided with a fifth side edge detection mechanism 62.14. The third cloth side detecting mechanism 62.12 and the fourth side detecting mechanism 62.13 are used for correcting deviation, so that the side edge of the cloth is located between the two cloth side detecting mechanisms, the correction control is basically the same as the correction control of the material frame, specifically, when the fourth side detecting mechanism 62.13 does not detect the cloth, the edge of the cloth is located at the inner side of the fourth side detecting mechanism 62.13, and the driving roller of the roller surface axial driving mechanism 62.11 is controlled to move towards the direction of the third cloth side detecting mechanism 62.12 until the fourth side detecting mechanism 62.13 detects the cloth. If the third cloth edge detection mechanism 62.12 detects a cloth, indicating that the edge of the cloth is located at the third cloth edge detection mechanism 62.12 or outside the third cloth edge detection mechanism 62.12, the control roller surface axial driving mechanism 62.11 drives the roller to move toward the fourth edge detection mechanism 62.13 until the third cloth edge detection mechanism 62.12 does not detect the cloth.

The fifth side detecting mechanism 62.14 at the other end is used for detecting the side edge of the cloth to ensure that the side edge of the cloth can pass under the sewing machine head of the transverse sewing device, and if the fifth side detecting mechanism 62.14 cannot detect the cloth, the machine is stopped and is manually processed. The third and fourth cloth side edge detection mechanisms 62.12, 62.13 also ensure that the cloth side edge on that side can pass under the sewing head of the lateral stitching device on that side, while being used for rectifying the deviation. If the cloth side edge of the side is detected normally and the fifth side edge detecting mechanism 62.14 does not detect the cloth side edge, it is likely that the cloth is folded.

The application is through coil stock conveyor 20, introduction device 60 with cloth, cotton material alignment and send into transverse stitching device 30 together, utilize transverse stitching device 30 to transversely sew up, in order to transversely sew up two limits simultaneously, this application sets up two transverse stitching devices.

With reference to fig. 1, 7, 10-12, 22, the two sides of the frame of the material stitching device are provided with transverse stitching devices 30. The transverse stitching device 30 comprises a vertical plate 302, a first stitching plate 303 is mounted on one side of the vertical plate 302, a first stitching needle 304 is mounted above the first stitching plate 303, and the first stitching needle 304 is driven by a fourth driving mechanism 305. A first sewing shuttle 306 is installed below the first sewing flat plate 303, the first sewing shuttle 306 is also driven by a fourth driving mechanism 305, the first sewing shuttle can be a swinging shuttle or a rotating shuttle, the shuttle cooperates with a first sewing needle to carry out sewing operation, and a through hole for the sewing needle to pass through is arranged on the first sewing flat plate 303. Specifically, the driving wheel of the fourth driving mechanism 305 is connected with the first driving wheel 325 of the first sewing needle and the second driving wheel 326 of the first sewing shuttle 306 through a belt, and a tensioning wheel 307 is further provided for tensioning the belt. The first driving wheel 325 of the transverse stitching device is provided with a first sensing piece 308, one side of the first driving wheel 325 is provided with a first detecting mechanism 309 for detecting the first sensing piece 308, and when the first detecting mechanism 309 detects the first sensing piece 308, the first stitching needle 304 is lifted to the highest point. When the transverse stitching device 30 needs to be stopped, the controller controls the first detecting mechanism 309 to detect, and when the first detecting mechanism detects the first sensing piece 308, the transverse stitching device 30 stops. The thread cutting mechanism 310 is installed on one side of the first sewing shuttle 306 below the first sewing flat plate 303, and when the sewing is no longer needed for a certain length, the fourth driving mechanism 305 drives the transverse sewing needle to lift to a high point (namely, when the first detecting mechanism 309 senses the first sensing piece 308) and stop, and the thread cutting mechanism cuts off the two sewing threads so as to be convenient for the next sewing. A thread bracket 319 is also mounted on the vertical plate 302 for placing a sewing thread.

The belt conveying mechanism 312 is further arranged above the first sewing flat plate 303, the belt conveying mechanism 312 comprises a belt pulley 328 and a belt 329, the belt is sleeved on the belt pulley, the belt conveying mechanism 312 is driven by a fifth driving mechanism 313, an output shaft of the fifth driving mechanism is connected with the belt pulley through a belt, and the belt pulley is driven to rotate by the fifth driving mechanism through the belt, so that the belt conveying mechanism is driven to operate. The output shaft of the fifth driving mechanism can also be directly sleeved with the belt pulley without being connected by a belt. The belt type conveying mechanism plays a role in auxiliary conveying, and when the first sewing needle is used for sewing cloth, the belt type conveying mechanism conveys the cloth to the downstream. To accommodate different cloth thicknesses, the belt conveyor 312 may be raised and lowered. The vertical plate 302 is provided with a lifting mechanism 311, a driving shaft of the lifting mechanism 311 is connected with a fifth driving mechanism 313, and the belt type conveying mechanism is driven to lift by the fifth driving mechanism. The belt pulley of the belt type conveying mechanism is arranged on the mounting plate 327, the mounting plate 327 is connected with the machine body of the fifth driving mechanism, the lifting mechanism drives the fifth driving mechanism to lift, and the fifth lifting mechanism drives the belt type conveying mechanism to lift through the mounting plate. As can be seen from fig. 10, the belt conveyor is provided with 2 belts, the first sewing needle works between the 2 belts, and the first sewing needle moves up and down between the 2 belts without interference with each other.

At the output end of the belt conveyor 312, a cutting mechanism is provided, including a cutting platform 314 flush with the first sewing plate 303, a first cutter 315 is mounted above the cutting platform, specifically, a mounting plate 324 is mounted on the cutting platform, a cavity for accommodating the first cutter is formed in the mounting plate 324, the first cutter is mounted on the mounting plate, and a first cutter portion is exposed outside the cavity of the mounting plate. The first cutter 315 is driven to rotate by a sixth driving mechanism 316 mounted on the mounting plate. In order to cut off the redundant cloth better and reduce cutter abrasion, a cutter groove 320 is formed in the cutting platform, and a cutting edge 323 matched with the first cutter is arranged in the cutter groove. A suction mechanism 317 is further provided on the outer side of the first cutter 315, and sucks the waste cut by the first cutter. The assembly plate is also provided with a knife stone 318, the knife stone is pressed to enable the knife stone to be in contact with the first cutter, and the first cutter can be used for sharpening a knife in the rotation process. The first cutter is located downstream of the first sewing needle as seen in the material conveying direction. The cutting platform 314 and the first sewing plate can be integrally manufactured, and the cutting platform and the first sewing plate are combined into a whole, so that even if the cutting platform is of a combined structure, the part below the first cutter is the cutting platform.

Referring to fig. 10 and 22, the vertical plate 302 is mounted on the bottom plate 301, a third slider 321 is disposed on the lower surface of the cutting platform 314, a third guide rail 322 is mounted on the upper surface of the vertical plate 302, and the guide rail and the slider form a sliding mechanism, so that the cutting platform can move along a direction perpendicular to the length direction of the belt conveyor, and a cutting position is adjusted, and the cutting position is generally located outside the sewn position of the first sewing needle 304. Correspondingly, the sewing position can also be adjusted as required, the lower surface of the bottom plate 301 is provided with a sliding block, and the material sewing equipment rack is provided with a guide rail, so that a sliding mechanism is formed to adjust the position of the transverse sewing device, and the adjusting direction is perpendicular to the conveying direction of the cloth. When the cutting platform and the first sewing flat plate are arranged in a split mode, the cutting platform can be adjusted in position relative to the first sewing flat plate, and if the cutting platform and the first sewing flat plate are integrally arranged, the cutting platform and the first sewing flat plate are synchronously adjusted.

As shown in fig. 1, 7 and 13, a transition conveyor 70 is also provided between the transverse stitching device 30 and the longitudinal stitching device 40. The transition conveyor 70 includes a third two-roll conveyor 701, a plurality of conveyor rolls 702, a tension roll 703 and a fourth two-roll conveyor 704. A third two-roll conveyor 701 is provided at the output of the lateral stitching device 30 and a fourth two-roll conveyor 704 is provided at the input of the longitudinal stitching device 40. The tensioning roller 703 is connected with the balancing weight 706 through a pulley, and the weight of the tensioning roller 703 is larger than that of the balancing weight, so that the tensioning roller 703 plays a role in tensioning the coiled material. The output end of the transition conveying device 70 is provided with an output plate 705, and the material is supported by the output plate 705, so that sagging is avoided when the material is conveyed with the longitudinal stitching device 40. The cloth stitched by the transverse stitching device 30 is transported by the third double-roller transport mechanism 701, and after passing through the transport roller and the tension roller, is transported to the longitudinal stitching device 40 by the fourth double-roller transport mechanism 704.

As shown in fig. 13, 14, 15, the longitudinal stitching device 40 comprises a stitching platform 401, upstream of the input side of which stitching platform 401 an abutment plate 4013 is provided, which abuts against an output plate 705 of the transition conveyor 70. Fourth guide rails 402 are longitudinally arranged on two sides of the sewing platform 401, a movable frame 403 is movably arranged on the fourth guide rails 402, a sewing machine head is arranged on the movable frame 403, and a seventh driving mechanism 404 drives the movable frame 403 to longitudinally reciprocate along the fourth guide rails 402, so that materials such as quilts are longitudinally sewn and longitudinally cut. The moving frame detecting mechanism 408 is provided at both ends of the fourth guide rail 402 for detecting that the moving frame 403 with the sewing machine head moves to the end limit position, and controlling the moving frame not to move further toward the end. The longitudinal stitching device 40 further comprises a cloth pulling mechanism 405 installed at two ends of the stitching platform 401, and is used for tensioning the quilt longitudinally, so as to ensure the smoothness of cutting. The output side of the sewing platform 401 is provided with a clamping mechanism 406, the clamping mechanism 406 comprises a pressing rod 461 and an eighth driving mechanism 462 installed on the frame, and the eighth driving mechanism 462 drives the pressing rod 461 to press the quilt, so that the stability during cutting is ensured. After the materials are sewn and cut, the longitudinal sewing device 40 is obliquely arranged for realizing automatic discharging, and the materials such as the cut quilt slide off.

As shown in fig. 14 and 21, the present application further provides a stretching mechanism 407 on the output side of the suture platform 401. The stretching mechanism 407 includes two rollers 471, a gap for a quilt to pass through is provided between the two rollers 471, two ends of the two rollers 471 are rotatably mounted on a side plate 472, the middle part of the side plate 472 is rotatably mounted on a frame through a connecting shaft 473, and the sixteenth driving mechanism 474 can drive the two rollers to turn over together with the side plate. The spreader mechanism is further provided with a docking platform 475, which docking platform 475 is flush with the output portion 4012 of the suturing platform 401, which serves to extend the length of the platform, although the output portion 4012 may be made longer instead of the docking platform 475. Before longitudinal stitching, the end of the material such as the quilt passes through the space between the two rollers 471, and the rollers are rotated to drive the material such as the quilt to play a role in pulling the material on the stitching platform 401, so that the material is more flat and stretched.

As shown in fig. 14-19, the sewing machine head includes a second sewing needle 420 mounted on the moving frame 403, the second sewing needle 420 being driven to move up and down by a ninth driving mechanism 409. The two second sewing needles 420 are arranged in the application, and the materials on two sides of the cutting line are respectively sewn, so that the quilt is sewn for example, namely, the longitudinal edges of the two-bed quilt are sewn at the same time, and the two-bed quilt is divided into two beds from the two-bed quilt. The moving frame 403 is provided with a second sewing flat plate 411, two second sewing shuttles 412 matched with two second sewing needles 420 are installed below the second sewing flat plate 411, the two second sewing shuttles 412 are driven by a tenth driving mechanism 413, the second sewing shuttles can be a swinging shuttle and a rotating shuttle, the sewing operation is completed by matching with sewing needles, and a through hole for the second sewing needles 420 to pass through is formed in the second sewing flat plate 411. A second cutter 414 is arranged between the two second sewing needles 420, preferably on the symmetrical line of the two second sewing needles 420, the second cutter 414 is driven to rotate by an eleventh driving mechanism 415, and the second cutter cuts the quilt sewn longitudinally into two bed quilts. One side of the second cutter 414 is provided with a knife stone, the knife stone is extruded to be contacted with the second cutter, and the second cutter is rotated to conduct knife sharpening operation. The two ends of the second sewing flat plate are provided with inclined planes 423 so as to support and guide materials such as quilts and the like between the second sewing flat plate and the second sewing needle head. A first material detection device 421 and a second material detection device 422 are installed above the second sewing needle 420, when the first material detection device 421 detects a quilt, the second sewing needle and the second sewing shuttle work to sew the quilt, when the second material detection device 422 does not detect the quilt, the sewing is completed, and the second sewing needle and the second sewing shuttle stop working.

As shown in fig. 16 and 17, a longitudinal thread cutting mechanism is mounted below the second sewing flat plate 411, the longitudinal thread cutting mechanism comprises a long moving blade 416, a threading hole is formed at the end of the moving blade 416, a sewing thread passes through the threading hole, and a fixed blade 417 and a twelfth driving mechanism 418 for driving the moving blade 416 to move are further included. After the longitudinal sewing is completed, the sewing needle is lifted to the highest, and the twelfth driving mechanism 418 drives the movable knife 416 to move, so that the sewing thread passing through the threading hole is pulled to the fixed knife 417 to be cut off by the movable knife 416. Due to the two second suture shuttles, two longitudinal thread cutting mechanisms are correspondingly arranged.

As shown in fig. 18, a second sensing piece 410 is provided on a driving shaft of the second sewing needle 420, and a second detecting mechanism 419 is provided at one side of the driving shaft for detecting that the second sewing needle is lifted to the highest point, and when the second sensing piece 410 is detected by the second detecting mechanism 419, the second sensing piece 420 is longitudinally sewn to the highest point. When the longitudinal stitching is completed, the second stitching needle and the second stitching shuttle stop working, the controller controls the second detecting mechanism 419 to detect the second sensing piece 410, after detection, the controller controls the ninth driving mechanism 409 and the tenth driving mechanism 413 to stop driving, at this time, the second stitching needle is located at the highest point, and when materials such as a quilt are moved, the second stitching needle cannot scrape the materials.

As shown in fig. 14 and 20, the cloth pulling mechanism 405 is disposed at two ends of the sewing platform 401, and includes a thirteenth driving mechanism 451, a first bracket 452 is connected to a driving shaft of the thirteenth driving mechanism 451, a fixed clamping plate 453 is mounted on the first bracket 452, and a movable clamping plate 454 and a fourteenth driving mechanism 455 for driving the movable clamping plate 454 to open and close are rotatably mounted on the fixed clamping plate 453. The controller 50 controls the fourteenth driving mechanism 455 to drive the movable clamp 454 to turn around the movable clamp shaft 457, an opening is formed between the movable clamp and the fixed clamp, the controller controls the thirteenth driving mechanism 451 to drive the fixed clamp to extend forwards, when the edge of the quilt is located in the opening, the fourteenth driving mechanism drives the movable clamp to turn to a position where the movable clamp is closed with the fixed clamp, the fixed clamp and the movable clamp the edge of the quilt, and the thirteenth driving mechanism 451 retracts, so that the quilt is tensioned longitudinally. The detection device 456 is further installed on the support 452, the edge of the quilt is detected by the detection device 456, and when the edge of the quilt is detected by the detection device 456, the thirteenth driving mechanism is controlled to stop by the controller, and the fourteenth driving mechanism is controlled to drive the movable clamping plate to turn to a position closed with the fixed clamping plate. The closed position of the fixed clamping plate and the movable clamping plate is provided with the avoidance gap 458, the avoidance gap is positioned on the moving path of the second sewing needle, the second sewing needle can enter and exit the avoidance gap, and the edge of the quilt is positioned in the avoidance gap, so that the second sewing needle can stitch the edge of the quilt in the avoidance gap without leakage. According to the quilt stitching device, at least 1 cloth pulling mechanism is arranged at two ends of the stitching platform 401 to form a cloth pulling system, one side of the quilt is pulled from the two ends respectively, and the quilt is flattened, so that stitching and cutting are facilitated. Because the longitudinal stitching device of the application can stitch two sutures simultaneously, just form two beds of quilts after cutting from between two sutures, the granny rag system cloth has 4 granny rags, and every end of sewing platform 401 all sets up two granny rags 405, and these two granny rags forms a set of, and two granny rags 405 separate the both sides of needle 420 travel path of making up, and when longitudinal stitching, the second cutter cuts the quilt from between two granny rags.

The sewing machine head moves along the fourth guide rail 402 during the sewing and cutting processes, and the sewing platform 401 cannot interfere with the sewing machine head, that is, on the moving path of the sewing machine head, especially on the moving paths of the second sewing flat plate 411, the second sewing needle 420 and the second cutter 414, the sewing platform 401 needs to avoid, for example, the part of the sewing platform is cut off to form an avoiding space. However, this may cause a problem that, after the stitching and cutting, the end of the quilt may fall into the avoiding space on the input side of the stitching platform 401, and cannot be conveyed to the output side continuously, and a traction mechanism or a man is required to draw the quilt out of the avoiding space. In order to solve this problem, as shown in fig. 13 and 14, the stitching platform 401 is provided with two parts, an input part 4011 and an output part 4012, the output part 4012 is fixedly installed and is located below the clamping mechanism 406, the input part 4011 is movably installed, that is, the input part 4011 can move along the material conveying direction under the driving of the fifteenth driving mechanism 424 and can move below the abutting plate 4013, so as to avoid the stitching head, after the stitching is completed, the stitching head is reset, the fifteenth driving mechanism 424 drives the input part 4011 to reset again, the input part 4011 supports the material edge from below and conveys the material forward, and the material can normally reach the output part 4012. Instead of the abutting plate 4013, the input end of the input portion 4011 may be abutted against the output plate 705, and when the input portion 4011 is retracted from the stapler, the fifteenth driving mechanism 424 may drive the input portion 4011 to extend below the output plate 705.

The sewing process is described in detail in the following preferred embodiments:

1. the 2-layer material on the material frame 10 conveys the coil conveying device 20 to the leading-in device 60, the 3 rd layer material on the material frame 10 conveys the 60,2-layer material to the leading-in device, and the 1-layer material is overlapped at the leading-in device 60 and conveyed to the transverse stitching device 30. The unreeling method of the material rack 10 and the deviation correcting method in the conveying process are already described above and will not be described again.

2. The lateral stitching devices 30 on both sides are activated and the 3 layers of material are stitched together while being moved during the transport process, and if the edges of the material outside the stitching line need to be cut, then cut off by the first cutter 315. The method for adjusting the stitching position and the method for adjusting the cutting position are already described above and will not be repeated. If an opening is required on one side of the quilt cover, for example, the quilt cover is provided with an opening so as to insert the quilt into the quilt cover, the lateral sewing needle on the side and the first sewing shuttle are controlled, specifically, the fourth driving mechanism 305 is controlled to stop, and the stopping time is described above, namely, the first sewing needle 304 moves to the highest point, because the material is still conveyed at this time, and if the position of the first sewing needle is lower, the material can be interfered. After the reserved opening size meets the requirement, the fourth driving mechanism 305 is controlled to start up, and the stitching is continued. The transversely stitched material is transported to the longitudinal stitching device via transport means 70.

3. The transition conveying device conveys the quilt to be sewn longitudinally forwards for a certain length, and the conveying length can be determined according to the running speed and the conveying time of the transition conveying device.

4. The end of the quilt passes through the gap between the two rollers 471 of the stretching mechanism 407, and the sixteenth driving mechanism 474 drives the two rollers to rotate, so that the quilt is stretched and stretched in the conveying direction, and the quilt is flatter on the sewing platform of the longitudinal sewing device.

5. The eighth driving mechanism 462 drives the compression rod 461 of the clamping mechanism to compress the quilt, and the stretching mechanism is reset.

6. Thirteenth actuating mechanism drive clip (movable splint, fixed splint) of 4 granny rags at sewing platform both ends stretch forward, fourteenth actuating mechanism 455 drive movable splint upset, open between movable splint and the fixed splint and form the opening, when detection device 456 detects the quilt, fourteenth actuating mechanism 455 drive movable splint upset makes movable splint and fixed splint fold, presss from both sides the quilt border, thirteenth actuating mechanism drive clip retract, will be by the taut in perpendicular quilt conveying direction.

7. The fifteenth driving mechanism 424 drives the input portion 4011 of the sewing platform 100 to extend below the abutment plate 4013, the input portion 4011 moves out of the sewing path of the longitudinal sewing machine head or the like, and the longitudinal sewing machine head or the like is avoided from being opened, so that the movement of the longitudinal sewing machine head or the like is not blocked.

8. The seventh driving mechanism 404 drives the moving frame 403 and the like to move along the fourth guide rail 402, namely, to move perpendicular to the conveying direction of the quilt, when the first material detecting device 421 detects the quilt, the second sewing needle and the second sewing shuttle start to be sewn, and meanwhile, the second cutter works at the middle position of the two second sewing needles to cut the quilt into two sections.

9. When the second material detecting device 422 cannot detect the quilt, the second sewing needle and the shuttle stop working to complete sewing, the second sewing needle rises to the highest, and then the longitudinal thread cutting mechanism cuts threads. The carriage continues to advance until the carriage detection mechanism 408 detects that the carriage, the second cutter, is deactivated and the quilt is completely cut into two ends. The seventh driving mechanism 404 reverses and drives the movable frame in reverse to reset.

10. The fourteenth driving mechanism 455 of the spreading mechanism drives the movable clamping plate to turn over, the edge of the quilt is loosened, the eighth driving mechanism 462 of the clamping mechanism drives the pressing rod 461 to reset, and the quilt slides down by gravity. The fifteenth driving mechanism 424 drives the input portion 4011 of the suturing deck 401 to reset.

Claims (8)

1. A cloth pulling mechanism which is characterized in that: comprises a thirteenth driving mechanism, a fourteenth driving mechanism, a fixed clamping plate and a movable clamping plate; the movable clamping plate is rotatably arranged on the fixed clamping plate, and the movable clamping plate is driven to rotate by the fourteenth driving mechanism, so that an opening or a closing is formed between the movable clamping plate and the fixed clamping plate; the thirteenth driving mechanism is used for driving the fixed clamping plate to move forwards and backwards.

2. A cloth pulling mechanism as defined in claim 1, wherein: the detection device is driven by the thirteenth driving mechanism to move together with the fixed clamping plate, and when the detection device detects materials, the movable clamping plate and the fixed clamping plate are driven by the fourteenth driving mechanism to be closed so as to clamp the materials.

3. A cloth pulling mechanism as defined in claim 2, wherein: the device comprises a fixed clamping plate, a detection device, a thirteenth driving mechanism and a first support, wherein the fixed clamping plate and the detection device are both arranged on the first support, and the thirteenth driving mechanism drives the first support to move forwards and backwards.

4. A cloth pulling mechanism according to any one of claims 1 to 3, wherein: and an avoidance gap is arranged on the closing position of the fixed clamping plate and the movable clamping plate.

5. A cloth pulling system for a material stitching device, characterized by: the spreading system comprises at least 2 spreading mechanisms according to any one of claims 1-3, wherein the 2 spreading mechanisms are arranged opposite each other and are used for clamping one side of the material.

6. A tenter frame system according to claim 5, characterized in that: the cloth pulling device comprises 4 cloth pulling mechanisms, wherein each 2 cloth pulling mechanisms are in a group, 2 groups of cloth pulling mechanisms are oppositely arranged, and 2 cloth pulling mechanisms in each group of cloth pulling mechanisms are respectively positioned at two sides of a cutting line of a material.

7. The tarpaulin system of claim 5 or 6, wherein: and at the closing position of the fixed clamping plate and the movable clamping plate of the cloth pulling mechanism, an avoidance gap is formed in the fixed clamping plate and the movable clamping plate, and the sewing needle of the material sewing device can sew the edges of materials in the avoidance gap.

8. The tarpaulin system of claim 7, wherein: the automatic feeding device is characterized by further comprising a controller, wherein the controller is used for controlling the thirteenth driving mechanism and the fourteenth driving mechanism to act, the controller is further connected with the detection device, when the detection device detects the edge of a material, the controller controls the thirteenth driving mechanism to stop and controls the fourteenth driving mechanism to act, so that the movable clamping plate and the fixed clamping plate are closed to clamp the material, and at the moment, the edge of the material is positioned in the avoidance gap.