CN204644607U - A sewing mechanism for a zipper - Google Patents

Abstract

The utility model belongs to the technical field of the sewing machine tool technique and specifically relates to indicate a sewing mechanism for zip fastener, including walking the needle device, should walk the needle device and include clamp plate and sewing needle, still include material feeding unit and closing device, this material feeding unit includes the conveyer belt and is used for driving the conveyer belt drive arrangement that this conveyer belt removed, closing device is used for compressing tightly the conveyer belt on the surface by the sewing material. When the sewing needle of the needle moving device is continuously sewn, the pressing device presses the conveying belt onto the zipper and the cloth, and then the conveying belt drives the zipper and the cloth to move forward continuously, so that the zipper and the cloth after the needle sewing machine is sewn are good in smoothness, and the market demand is met. Compared with the prior device for sewing the zipper, the utility model discloses simple structure, its low in manufacturing cost, it is convenient to maintain to carry out disposable sewing machine to zip fastener and cloth and sew up the completion, do not need processes such as brush glue, laminating and ironing, simplified the step of production, improved production efficiency, reduced the cost of production.

Description

A sewing mechanism for a zipper

technical field

The utility model relates to the technical field of sewing machines, in particular to a sewing mechanism for zippers.

Background technique

In the traditional process of sewing zippers, due to the backward technology of the sewing mechanism, it is usually completed through steps such as gluing, laminating, and sewing machine ironing. For example, to sew a zipper on boots, the zipper is first glued, and the glued zipper is attached to the upper, and then the upper and the zipper are stitched, and the zipper is sewn on the upper, and finally Iron the zipper and slope of the car. Adopt this method to sew the method for zipper, processing technology is complicated, need more workers, increase production cost; In addition, although zipper and vamp after sewing machine are ironed, its flatness is still very poor, can not satisfy the market demand. Demand, defective is very obvious, needs to provide a kind of novel sewing mechanism for zipper badly.

Contents of the invention

The technical problem to be solved by the utility model is to provide a sewing mechanism for zippers with simple structure, low manufacturing cost, convenient maintenance, good flatness of zipper and cloth after stitching by needle car, improved production efficiency and reduced production cost .

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A sewing mechanism for a zipper, comprising a needle-moving device, the needle-moving device includes a pressing plate and a sewing needle, a feeding device and a pressing device, the feeding device includes a conveyor belt and a conveyor belt driving device for driving the conveyor belt to move, the The pressing device is used to press the conveyor belt on the surface of the material to be sewn.

Wherein, the conveyor belt driving device includes a mounting plate, a motor arranged on the top of the mounting plate, a driving pulley connected to the motor, a transition pulley and a driven pressure wheel arranged at the bottom of the mounting plate, and the pressing device It includes a rotating arm and a rotating arm driving device for driving the rotating arm to rotate. The middle part of the rotating arm is hinged with the installation plate, and the driven pressure wheel is arranged at the right end of the rotating arm. Rotate the left end of the arm to drive the connection.

Wherein, the rotating arm driving device includes an air cylinder, and the piston rod of the air cylinder is drivingly connected with the left end of the rotating arm.

Wherein, the feeding device further includes a conveyor belt tensioning assembly, the conveyor belt tensioning assembly includes a swing arm with one end hinged to the mounting plate, a floating tension pulley arranged at the other end of the swing arm, and a belt threaded through the swing arm. A bolt and a spring sheathed on the bolt, the bolt is connected to the mounting plate, and the two ends of the spring abut against the swing arm and the head of the bolt respectively.

Wherein, it also includes jigs for fastening the two sides of the zipper, the jigs include a jig seat, a rotating member rotatably arranged on the jig seat, a fastener connected with the rotating member, and the jig seat The rear side is provided with a connecting pin, the rotating part is provided with a connecting nail, and the connecting nail is connected to the connecting pin through a spring, and the fastener is provided with a fastening part for buckling the zipper.

Wherein, the jig also includes an adjustment piece and a connecting piece, the rotating piece is provided with a longitudinal installation groove, the adjustment piece is provided with an adjustment installation hole, and the longitudinal installation groove and the adjustment installation hole are connected by bolts;

The adjusting part is provided with a transverse mounting groove, and the connecting part is provided with a connecting part mounting hole, and the connecting part mounting hole is connected with the transverse mounting groove by bolts.

Wherein, the connector is provided with an installation chute, the fastener is provided with a fastener connection hole, and the installation chute is connected with the fastener connection hole by bolts.

Beneficial effects of the utility model:

While the sewing needle of the needle-moving device of the utility model is continuously sewing, the pressing device presses the conveyor belt on the zipper and the cloth, and then the conveyor belt drives the zipper and the cloth to move forward continuously, so that the zipper and the cloth after sewing by the needle car are smooth Good performance, to meet the needs of the market. Compared with the existing device for sewing zippers, the utility model has simple structure, low manufacturing cost and convenient maintenance, and the zipper and cloth are stitched by a one-time needle car without glue brushing, laminating and ironing processes, which simplifies production steps, improve production efficiency, reduce production costs, and have strong practicability.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a three-dimensional structural schematic diagram of the feeding device and the pressing device of the present invention.

Fig. 3 is a schematic diagram of the three-dimensional structure of the jig described in the present invention.

Fig. 4 is an exploded schematic view of the three-dimensional structure of the jig described in the present invention.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model.

As shown in Figures 1 to 4, a sewing mechanism for a zipper includes a needle movement device 1, the needle movement device 1 includes a pressing plate 11 and a sewing needle 12, and also includes a feeding device 2 and a pressing device 3, the feeding device 2 It includes a conveyor belt 21 and a conveyor belt driving device for driving the conveyor belt 21 to move, and the pressing device 3 is used for pressing the conveyor belt 21 on the surface of the material to be sewn.

Specifically, the needle movement device 1 is an existing technology and can be directly adopted. In practical application, place the zipper on the sewing platform after aligning the zipper and the fabric (or other materials) that need to be sewn by the needle car. At the same time, the pressing device 3 drives the conveyor belt 21 to press the zipper and the cloth to be sewn, and the conveyor belt driving device drives the conveyor belt 21 to drive the zipper and the cloth to move forward, so that the sewing needle 12 constantly needs to sew the zipper and the cloth The parts are continuously stitched.

While the sewing needle 12 of the needle-moving device 1 of the utility model is constantly sewing, the pressing device 3 presses the conveyor belt 21 on the zipper and the cloth, and then the conveyor belt 21 drives the zipper and the cloth to move forward continuously, so that after the stitching is completed, The zipper and fabric have good flatness and meet the needs of the market. Compared with the existing device for sewing zippers, the utility model has simple structure, low manufacturing cost and convenient maintenance, and the zipper and cloth are stitched by a one-time needle car without glue brushing, laminating and ironing processes, which simplifies production steps, improve production efficiency, reduce production costs, and have strong practicability.

In this embodiment, the conveyor belt driving device includes a mounting plate 23, a motor 24 arranged on the top of the mounting plate 23, a driving pulley 25 connected to the motor 24, a transition pulley 26 arranged at the bottom of the mounting plate 23 and Driven pressing wheel 27, described pressing device 3 comprises rotating arm 31 and is used to drive the rotating arm driving device that this rotating arm 31 rotates, and the middle part of this rotating arm 31 is hinged with described mounting plate 23, and described driven pressing The wheel 27 is arranged at the right end of the rotating arm 31 , and the driving device of the rotating arm is drivingly connected with the left end of the rotating arm 31 .

Specifically, the motor 24 drives the driving pulley 25 to rotate, the conveyor belt 21 winds around the driving pulley 25, the transition pulley 26 and the driven pressure pulley 27, the driving pulley 25 drives the conveyor belt 21 to move, and the rotating arm driving device drives the rotating arm 31 Rotate, make rotating arm 31 drive driven pressure wheel 27 to move and conveyer belt 21 is pressed on slide fastener and cloth, make conveyer belt 21 move forward with slide fastener and cloth. The conveyor belt driving device and the rotating arm driving device have a compact structure, take up little space, and are reliable in compression and transmission, so that the conveyor belt 21 can reliably move the zipper and cloth, and ensure the best smoothness of the zipper and cloth.

In this embodiment, the rotating arm driving device includes a cylinder 32, the piston rod of the cylinder 32 is drivingly connected to the left end of the rotating arm 31, and the cylinder 32 is used to drive the rotating arm 31 to rotate. The structure is simple, and the response speed of the cylinder 32 Fast, easy to control, and low acquisition cost.

In this embodiment, the feeding device 2 further includes a conveyor belt tensioning assembly 4 , the conveyor belt tensioning assembly 22 includes a swing arm 41 hinged at one end to the mounting plate 23 , and a floating tensioner set at the other end of the swing arm 41 . The wheel 42, the bolt 43 passing through the swing arm 41 and the spring 44 sleeved on the bolt 43, the bolt 43 is connected to the mounting plate 23, and the two ends of the spring 44 are respectively connected to the swing arm 41 It abuts against the head of the bolt 43 .

In the production process, the spring 44 abuts against the swing arm 41, so that the swing arm 41 can automatically rotate according to the tightness of the conveyor belt 21, so that the floating tension wheel 42 can automatically adjust the tension of the conveyor belt 21. The structure is simple and easy to manufacture. Low cost and easy adjustment.

In this embodiment, it also includes jigs 5 for buckling both sides of the slide fastener. The jig 5 includes a jig seat 51, a rotating member 52 that is rotatably arranged on the jig seat 51, and a rotating member 52 that is connected to the rotating member 52. Fastener 53, the rear side of described jig seat 51 is provided with connecting pin 511, and described rotating member 52 is provided with connecting nail 521, and described connecting nail 521 is connected with described connecting pin 511 by spring, and described fastener 53 A fastening portion 531 for fastening the zipper is provided.

Specifically, the jig base 51 is fixed on the frame of the needle movement device 1 . As shown in Figure 3, when in use, the rotating member 52 is fixed on the jig seat 51 by spring tension, and the two fastening parts 531 of the fastener 53 are respectively stuck on both sides of the zipper, so that the zipper can move along the same direction. Move to avoid the left and right deviation of the zipper, so as to improve the quality of the zipper and fabric after sewing. When the two fastening parts 531 do not need to block the zipper, the rotating part 52 is moved upwards to rotate, and the fastening part 53 can be removed.

In this embodiment, the jig 5 further includes an adjustment member 54 and a connecting member 55, the rotating member 52 is provided with a longitudinal installation groove 522, the adjustment member 54 is provided with an adjustment installation hole 541, and the longitudinal installation groove 522 It is connected with the adjustment installation hole 541 by bolts; the adjustment member 54 is provided with a transverse installation groove 542, and the connector 55 is provided with a connector installation hole 551, and the connector installation hole 551 is connected with the lateral installation groove 542 by bolts . The connecting piece 55 is provided with an installation chute 552 , and the fastener 53 is provided with a fastener connection hole 534 , and the installation chute 552 and the fastener connection hole 534 are connected by bolts.

During use, the connection position between the longitudinal installation groove 522 and the adjustment installation hole 541, the connection position between the connector installation hole 551 and the horizontal installation groove 542, and the connection between the installation chute 552 and the fastener connection hole 534 can be selected according to the needs of use. Position, so as to realize the vertical, horizontal and height adjustment of the fastener 53, which is easy to adjust and has strong versatility.

The above-mentioned embodiment is a preferred implementation of the utility model. In addition, the utility model can also be realized in other ways. Any obvious replacement is within the scope of protection of the utility model without departing from the concept of the technical solution. Inside.

Claims (7)

1. A sewing mechanism for a zipper, comprising a needle-moving device (1), the needle-moving device (1) including a pressing plate (11) and a sewing needle (12), characterized in that it also includes a feeding device (2) and a pressing device (3), the feeding device (2) includes a conveyor belt (21) and a conveyor belt driving device for driving the conveyor belt (21) to move, and the pressing device (3) is used to compress the conveyor belt (21) on the The surface of the sewing material. 2. A sewing mechanism for zipper according to claim 1, characterized in that: the conveyor belt driving device comprises a mounting plate (23), a motor (24) arranged on the top of the mounting plate (23), and the motor (24) The connected driving pulley (25), the transition pulley (26) and the driven pressure pulley (27) arranged at the bottom of the mounting plate (23), the pressing device (3) includes a rotating arm (31 ) and a rotating arm driving device for driving the rotating arm (31), the middle part of the rotating arm (31) is hinged with the mounting plate (23), and the driven pressure wheel (27) is arranged on the rotating arm ( 31), the rotating arm driving device is connected to the left end of the rotating arm (31). 3. A sewing mechanism for a zipper according to claim 2, characterized in that: the rotating arm drive device includes a cylinder (32), the piston rod of the cylinder (32) is connected to the left end of the rotating arm (31) Driver connection. 4. A sewing mechanism for zipper according to claim 2, characterized in that: the feeding device (2) further includes a conveyor belt tensioning assembly (4), and the conveyor belt tensioning assembly (22) includes one end hinged to the The swing arm (41) of the mounting plate (23), the floating tension wheel (42) set at the other end of the swing arm (41), the bolt (43) passing through the swing arm (41) and the The spring (44) of the bolt (43), the bolt (43) is connected to the mounting plate (23), and the two ends of the spring (44) are respectively connected to the swing arm (41) and the bolt (43) butt of the head. 5. A sewing mechanism for a zipper according to claim 1, characterized in that it also includes a jig (5) for fastening both sides of the zipper, and the jig (5) includes a jig seat (51), which can be The rotating part (52) arranged on the jig seat (51) for rotation, and the fastener (53) connected with the rotating part (52), the rear side of the jig seat (51) is provided with a connecting pin (511 ), the rotating part (52) is provided with a connecting nail (521), the connecting nail (521) is connected to the connecting pin (511) through a spring, and the fastener (53) is provided with a button for buckling the zipper Buckle (531). 6. A sewing mechanism for a zipper according to claim 5, characterized in that: the jig (5) further includes an adjusting piece (54) and a connecting piece (55), and the rotating piece (52) is provided with The longitudinal installation groove (522), the adjustment member (54) has an adjustment installation hole (541), and the longitudinal installation groove (522) is connected to the adjustment installation hole (541) by bolts; The adjustment piece (54) is provided with a horizontal installation groove (542), and the connection piece (55) is provided with a connection piece installation hole (551), and the connection piece installation hole (551) and the horizontal installation groove (542) Connected by bolts. 7. A sewing mechanism for a zipper according to claim 5, characterized in that: the connecting piece (55) is provided with a mounting chute (552), and the fastener (53) is provided with a fastener connecting hole ( 534), the installation chute (552) is connected to the fastener connecting hole (534) by bolts.