CN211814870U

CN211814870U - Lock type button sewing machine

Info

Publication number: CN211814870U
Application number: CN201922420474.2U
Authority: CN
Inventors: 冯志法; 何洗源; 吴明明
Original assignee: Bullmer Electromechanical Technology Co Ltd
Current assignee: Bullmer Electromechanical Technology Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-30
Anticipated expiration: 2029-12-26

Abstract

The utility model provides a locking-type button sewing machine belongs to sewing equipment technical field. It has solved its insecure problem of button sewing of current chain button sewing machine. This locking-type button sewing machine, including eedle, upper shaft, lower shaft, driving source and trimming mechanism, the upper shaft passes through drive mechanism transmission with the lower shaft and connects its characterized in that: the sewing machine further comprises a rotating shuttle, wherein a rotating shuttle hook is arranged on the rotating shuttle, and the rotating shuttle hook is used for hooking a thread and is matched with the machine needle and the rotating shuttle to enable the upper thread and the bottom thread to form a lock-type stitch. The lock type button sewing machine has the advantage of firm button sewing.

Description

Lock type button sewing machine

Technical Field

The utility model belongs to the technical field of sewing equipment, a button sewing machine, especially a locking-type button sewing machine is related to.

Background

The button sewing machine is a special automatic sewing machine type and completes the sewing of the regular-shaped buttons and the operation of sewing processes with 'nails and drops', such as sewing trademarks, labels, caps and the like. The most common are disc-shaped two-hole or four-hole button staples. Through the replacement of various special button sewing machine accessories, one button sewing machine can sew various buttons such as button with handle, metal button, snap button, foot-winding button, wind-blown button and the like.

A chain stitch button sewing machine disclosed in chinese patent publication No. CN1974908B, published as 2012.03.07, has a button holding mechanism and a cloth holding member, and the cloth holding member is provided with a reinforcing cloth holding member which positions a reinforcing cloth inside an object to be sewn and holds the reinforcing cloth together with the object to be sewn between the object to be sewn and a front end portion thereof in a state where the front end portion is folded.

Chinese patent (publication No. CN203700739U, publication No. 2014.07.09) discloses a direct-drive button sewing machine capable of automatically lifting and pressing a trimming thread, and as disclosed in the patent, during sewing, a servo motor rotates to drive a pulley shaft to rotate, further drive an eccentric wheel connecting rod to swing, and drive a needle rod to reciprocate up and down through a lever, thereby completing the material pricking action; meanwhile, the rotation of the pulley shaft can drive the lower shaft to rotate, so that the curved needle at the end part of the lower shaft rotates; when a thread loop is formed by friction between a machine needle and a sewing material, the curved needle is just hooked from the groove of the machine needle to form a slipknot, and the slipknot is tensioned along with the upward movement of the take-up lever to form a chain stitch.

The stitches formed in the two schemes are chain stitches, which easily causes the problems of insecure button sewing, thread breakage or easy thread off and loose button sewing of the last needle, namely, the button sewing fastness is not enough, the button sewing easily falls off, and the customer opinion is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a locking type button sewing machine.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a locking-type button sewing machine, includes eedle, upper shaft, lower shaft, driving source and trimming mechanism, the upper shaft passes through drive mechanism transmission with the lower shaft and connects its characterized in that: the sewing machine further comprises a rotating shuttle, wherein a rotating shuttle hook is arranged on the rotating shuttle, and the rotating shuttle hook is used for hooking a thread and is matched with the machine needle and the rotating shuttle to enable the upper thread and the bottom thread to form a lock-type stitch.

In the lock type button sewing machine, the left end of the upper shaft is connected with the needle rod provided with the needle, the right end of the upper shaft is connected with the driving source, the middle part of the upper shaft is provided with the transmission mechanism, the transmission mechanism comprises a lower shaft synchronous belt, the upper shaft and the lower shaft are in transmission connection through the lower shaft synchronous belt, and one end of the lower shaft is connected with the rotating shuttle.

In the above locking-type button sewing machine, the locking-type button sewing machine further comprises a feeding mechanism, wherein the feeding mechanism comprises a worm shaft synchronous belt, a worm shaft, a worm wheel and a cam shaft; the upper shaft and the worm shaft are in transmission connection through a worm shaft synchronous belt; the worm is fixedly sleeved on the worm shaft, and the worm wheel is fixedly sleeved on the cam shaft and matched with the worm to complete meshing transmission; and the worm wheel and the worm drive the transverse feeding cam and the longitudinal feeding cam to rotate through the cam shaft.

In the above-mentioned locking-type button sewing machine, the thread trimming mechanism includes a knife rest, a thread trimming knife and a stationary knife, the thread trimming knife is fixedly connected with the knife rest, and after the button sewing operation is completed, the thread trimming knife makes circumferential swing along with the knife rest and cooperates with the stationary knife to complete the thread trimming operation.

In the above lock type button sewing machine, the driving source is a motor.

In the lock-type button sewing machine, the transmission mechanism is a bevel gear transmission mechanism.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a rotating shuttle colludes the line of colluding, forms locking-type stitch seam to it is firm to make bottom line and face line knot, can not appear taking off the line, scattered phenomenon of detaining, and the nail is detained the fastness and is improved greatly.

2. The utility model discloses an accurate target in place of trimming, remaining end of a thread is shorter on the surface fabric promptly, and this can avoid carrying out the process of artifical correction end of a thread once more to sewing products such as clothing of high requirement, has improved the work efficiency who makes up quality and workman greatly.

3. The utility model discloses simple structure, the transmission is rapid, and pay-off control range is wide.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the rotating shuttle of the present invention.

In the figure, 1, a machine needle; 2. an upper shaft; 3. a lower shaft; 4. a drive source; 5. a rotating shuttle; 51. a rotating shuttle hook; 6. a needle bar; 7. a lower shaft synchronous belt; 8. a worm shaft synchronous belt; 9. a worm shaft; 10. a worm; 11. a worm gear; 12. a camshaft; 13. a transverse feed cam; 14. a longitudinal feed cam; 15. a tool holder; 16. a thread cutter.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the lock type button sewing machine comprises a machine needle 1, an upper shaft 2, a lower shaft 3, a driving source 4 and a thread cutting mechanism, wherein the upper shaft 2 and the lower shaft 3 are in transmission connection through a transmission mechanism, the lock type button sewing machine further comprises a rotating shuttle 5, a rotating shuttle hook 51 is arranged on the rotating shuttle 5, and the rotating shuttle hook 51 is used for hooking threads and is matched with the machine needle 1 and the rotating shuttle 5 to enable an upper thread and a bottom thread to form a lock type stitch. In the sewing process of the button sewing machine, when the sewing needle 1 carries the upper thread to move downwards, the rotating shuttle hook 51 on the rotating shuttle 5 hooks the thread loop by self-rotation, simultaneously enlarges the thread loop, and guides the thread loop to encircle the bobbin to form a lock stitch. Compared with the existing chain stitch, the bottom thread and the upper thread in the lock stitch are firmly knotted, the phenomena of thread falling and button scattering can not occur, and the button sewing fastness is greatly improved.

As the further optimization of embodiment, the left end of upper shaft 2 is connected with the needle bar 6 of installing eedle 1, and the right-hand member of upper shaft 2 is connected with driving source 4, the utility model provides a driving source 4 is the motor. The middle part of the upper shaft 2 is provided with a transmission mechanism, the transmission mechanism comprises a lower shaft synchronous belt 7, the upper shaft 2 and the lower shaft 3 are in transmission connection through the lower shaft synchronous belt 7, and one end of the lower shaft 3 is connected with the rotating shuttle 5. When the device works, the driving source 4 is started to drive the upper shaft 2 to rotate, the upper shaft 2 can realize the linkage of the lower shaft 3 through the lower shaft synchronous belt 7, the structure is simple, and the transmission is rapid.

Specifically, the locking button sewing machine further comprises a feeding mechanism, wherein the feeding mechanism comprises a worm shaft synchronous belt 8, a worm shaft 9, a worm 10, a worm wheel 11 and a cam shaft 12; the upper shaft 2 and the worm shaft 9 are in transmission connection through a worm shaft synchronous belt 8; the worm 10 is fixedly sleeved on the worm shaft 9, and the worm wheel 11 is fixedly sleeved on the cam shaft 12 and matched with the worm 10 to complete meshing transmission; the two ends of the cam shaft 12 are respectively provided with a transverse feeding cam 13 and a longitudinal feeding cam 14, and the worm wheel 11 and the worm 10 drive the transverse feeding cam 13 and the longitudinal feeding cam 14 to rotate through the cam shaft 12. When the feeding mechanism works, the driving source 4 is started to drive the upper shaft 2 to rotate, the worm shaft 9 starts to rotate under the driving of the worm shaft synchronous belt 8, the worm 10 fixedly sleeved on the worm shaft 9 is driven to rotate, and the worm 10 drives the worm wheel 11 to act, so that the transverse feeding cam 13 and the longitudinal feeding cam 14 rotate synchronously with the worm wheel 11 to form feeding action. The mode that adopts worm wheel 11 and worm 10 to cooperate in this scheme, compare with prior art, have wider control range, machine moment is littleer.

The utility model provides a trimming mechanism includes knife rest 15, trimming sword 16 and stationary knife, trimming sword 16 and knife rest 15 fixed connection, and after the nail knot work was accomplished, trimming sword 16 made the circumference swing along with knife rest 15 and accomplished the trimming action with the stationary knife cooperation. The utility model discloses the trimming is accurate targets in place, and remaining end of a thread is shorter on the surface fabric promptly, and this can avoid carrying out the process of artifical correction end of a thread once more to sewing products such as clothing of high requirement, has improved the work efficiency who makes up quality and workman greatly.

The utility model discloses the drive mechanism between well upper shaft 2 and lower shaft 3 is not only limited to lower shaft hold-in range 7, can also be the bevel gear drive mechanism, and this bevel gear drive mechanism includes the vertical axis, and the upper end of vertical axis is provided with the bevel gear on the vertical axis, and the rear end of upper shaft is provided with the upper shaft bevel gear who meshes with the bevel gear on the vertical axis mutually; the lower end of the vertical shaft is provided with a vertical shaft lower bevel gear, and the rear end of the lower shaft is provided with a lower shaft bevel gear meshed with the vertical shaft lower bevel gear. The utility model provides a bevel gear transmission has compact structure, advantage that the accuracy is high.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms needle, upper shaft, lower shaft, rotary shuttle hook, needle bar, timing belt, worm shaft, worm gear, cam shaft, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a locking-type button sewing machine, includes eedle (1), upper shaft (2), lower shaft (3), driving source (4) and trimming mechanism, upper shaft (2) and lower shaft (3) pass through drive mechanism transmission and connect its characterized in that: the sewing machine further comprises a rotating shuttle (5), wherein a rotating shuttle hook (51) is arranged on the rotating shuttle (5), and the rotating shuttle hook (51) is used for hooking a thread and is matched with the machine needle (1) and the rotating shuttle (5) to enable the upper thread and the bottom thread to form a lock stitch.

2. A lock button sewing machine according to claim 1, wherein: the left end of upper shaft (2) is connected with needle bar (6) of installing above-mentioned eedle (1), the right-hand member of upper shaft (2) is connected with driving source (4), the mid-mounting of upper shaft (2) has above-mentioned drive mechanism, drive mechanism includes lower shaft hold-in range (7), upper shaft (2) and lower shaft (3) are connected through lower shaft hold-in range (7) transmission, the one end and the rotating shuttle (5) of lower shaft (3) are connected.

3. A lock button sewing machine according to claim 2, wherein: the lock-type button sewing machine further comprises a feeding mechanism, wherein the feeding mechanism comprises a worm shaft synchronous belt (8), a worm shaft (9), a worm (10), a worm wheel (11) and a cam shaft (12); the upper shaft (2) is in transmission connection with the worm shaft (9) through a worm shaft synchronous belt (8); the worm (10) is fixedly sleeved on the worm shaft (9), and the worm wheel (11) is fixedly sleeved on the cam shaft (12) and matched with the worm (10) to complete meshing transmission; two ends of the cam shaft (12) are respectively provided with a transverse feeding cam (13) and a longitudinal feeding cam (14), and the worm wheel (11) and the worm (10) drive the transverse feeding cam (13) and the longitudinal feeding cam (14) to rotate through the cam shaft (12).

4. A lock button sewing machine according to claim 1, wherein: the trimming mechanism comprises a knife rest (15), a trimming knife (16) and a fixed knife, the trimming knife (16) is fixedly connected with the knife rest (15), and when the button sewing work is completed, the trimming knife (16) does circumferential swing along with the knife rest (15) and completes trimming action by matching with the fixed knife.

5. A lock button sewing machine according to claim 2, wherein: the driving source (4) is a motor.

6. A lock button sewing machine according to claim 1, wherein: the transmission mechanism is a bevel gear transmission mechanism.