CN216040103U

CN216040103U - Transmission mechanism of linking machine

Info

Publication number: CN216040103U
Application number: CN202122140475.9U
Authority: CN
Inventors: 欧炳林
Original assignee: Guangzhou Langou Clothing Co ltd
Current assignee: Guangzhou Langou Clothing Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-15
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a transmission mechanism of a sewing machine, which relates to the field of the transmission of the sewing machine and aims to solve the problems of complex structure, high noise, high precision required by a large wheel, large centrifugal force, high abrasion and inconvenient maintenance in the prior art.A technical scheme adopted by the utility model is that the transmission mechanism comprises the sewing machine, a thread shifting device, a thread hooking device, a driving mechanism and a hand wheel, the transmission mechanism is simplified by arranging the hand wheel, a first bevel gear, a worm and a second turntable and enabling the hand wheel, the position distribution of the main transmission mechanism is more concentrated, the worm drives the worm gear to further drive the first gear coaxial with the worm gear and the sewing machine to move, the second turntable drives the thread hooking device to move through a connecting rod, the first bevel gear drives a second bevel gear to further drive the thread shifting device to move, the number track of transmission stroke is small, the terminal is stable to work, and the driving structure is simple; the transmission mechanism has the advantages of less abrasion, low noise during operation, low precision required by the large wheel, small centrifugal force, small abrasion and convenient maintenance.

Description

Transmission mechanism of linking machine

Technical Field

The utility model relates to the field of transmission of a sewing machine, in particular to a transmission mechanism of the sewing machine.

Background

A linking machine, also known as a disc sewing machine, commonly known as a looping machine, is a machine for sewing a sweater looping by using a sewing thread; the sewing machine can finish the sewing work of the garment pieces of the sweater efficiently and quickly, and the efficiency is greatly improved compared with that of manual sewing; conventional linking machines generally comprise: the driving device comprises a motor arranged in the base frame, and the motor is connected with the belt pulley on the outer side of the main transmission shaft through a belt so as to drive the belt pulley to rotate and finally drive the whole sewing machine body to sew; in the driving process of the driving mode, the motor can generate larger energy consumption, larger electric energy is needed, and the driving is not smooth enough, so that the market competitiveness of the traditional linking machine is caused.

The existing linking machine drives a connecting rod through two large wheels, a transmission separation blade walks for several steps to complete a winding process, the number of lines of a transmission stroke is large, so that the terminal is unstable in work, and the driving structure is complex and complicated in operation; the transmission mechanism has the advantages of quick abrasion, high noise during operation, high precision required by a large wheel, large centrifugal force, quick abrasion, high maintenance frequency and inconvenience in use.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a driving mechanism of a sewing machine, which adopts the technical scheme that the driving mechanism comprises a base, a sewing disc, a thread shifting device, a thread hooking device, a driving mechanism and a hand wheel, wherein the sewing disc is rotationally connected to the base and is of a disc-shaped structure, the sewing disc is provided with a circular groove, the diameter of the circular groove is smaller than that of the sewing disc, teeth are uniformly distributed on the inner circumferential surface of the groove, the sewing disc is used for hanging a garment piece to be sewn and feeding the garment piece into a sewing area, the driving mechanism and the sewing disc are driven by the hand wheel, the driving mechanism is respectively connected with the thread shifting device and the thread hooking device, the driving mechanism comprises a worm, a worm wheel, a first bevel gear and a second bevel gear, the worm is connected with the hand wheel and the first bevel gear shaft, the first bevel gear is meshed with the second bevel gear, the purpose is to turn the axial direction of rotation, the worm meshes with the worm wheel, and the purpose is to turn the axial direction of rotation from the horizontal direction to the vertical direction.

As a preferred technical scheme of the present invention, the thread hooking device includes a first rotary table, a connecting rod, a swing rod, and a crochet hook, the first rotary table is coaxially connected to the worm, the base is further provided with a support rod, the support rod is used for fixing the swing rod, the support rod is hinged to the swing rod, one end of the connecting rod is hinged to the first rotary table, the other end of the connecting rod is hinged to one end of the swing rod, and the crochet hook is connected to the other end of the swing rod, so as to hook and sew the garment piece.

As a preferred technical scheme of the present invention, the wire shifting device includes a second turntable, a shifting lever, a shifting piece, and a shaft, the shaft is vertically connected to the base, the second turntable is coaxially connected to the second bevel gear, the shifting lever is U-shaped, the shaft is connected to the shifting lever via a shaft, the shifting piece is connected to one end of the shifting lever, a protrusion is provided on the circumference of the second turntable, so as to jack up one end of the shifting lever and make the shifting piece at the other end swing to shift the wire, the other end of the shifting lever is slidably connected to the outer circumferential surface of the second turntable, a torsion spring is pressed at the connection position of the shaft and the shifting lever, and the torsion spring is used for increasing the damping of the shifting lever.

As a preferred technical scheme of the utility model, the bulge is made of wear-resistant material, and has the functions of increasing the wear resistance and prolonging the service life of the mechanism.

As a preferable technical scheme of the utility model, the base is also provided with a blocking cover which is arranged outside the wire shifting device in a surrounding manner and has the function of preventing personnel from being injured due to misoperation.

In a preferred embodiment of the present invention, the worm shaft is further connected to a first gear which meshes with teeth uniformly distributed on an inner circumferential surface of the dial for rotating the dial along the shaft.

As a preferable technical scheme of the utility model, a rotating handle is connected with the upper part of the worm gear through a shaft, and the outer circumferential surface of the rotating handle is provided with anti-skid grains for facilitating screwing.

The utility model has the beneficial effects that: the hand wheel, the first bevel gear, the worm and the second rotary table are arranged and are coaxial, so that a transmission mechanism is simplified, the position distribution of the main transmission mechanism is more concentrated, the hand wheel is rotated to rotate the components, the worm drives the worm gear to drive the first gear coaxial with the worm gear and drive the sewing disc to move, the second rotary table drives the wire hooking device to move through the connecting rod, the first bevel gear drives the second bevel gear to drive the wire poking device to move, the number of lines of a transmission stroke is small, the terminal works stably, and the driving structure is simple; the transmission mechanism has the advantages of less abrasion, low noise during operation, low precision required by the large wheel, small centrifugal force, small abrasion, low maintenance frequency and convenient use.

Drawings

FIG. 1 is a schematic top view of the structure of the present invention;

FIG. 2 is an enlarged schematic view of the thread hooking device of the present invention;

FIG. 3 is an enlarged view of the structure of the present invention at B;

fig. 4 is a schematic structural diagram of the wire-pulling device of the present invention.

In the figure: 1-dial, 2-hand wheel, 3-worm, 4-worm wheel, 5-second bevel gear, 6-first rotary disc, 7-connecting rod, 8-second rotary disc, 9-bulge, 10-deflector rod, 11-first gear, 12-torsion spring, 13-swing rod, 14-crochet hook, 15-transmission case, 16-line-drawing device, 17-line-hooking device, 18-first bevel gear, 19-supporting rod, 20-deflector piece, 21-shaft, 22-rotating handle, 23-base and 24-shield.

Detailed Description

Example 1

As shown in fig. 1 to 4, the utility model discloses a transmission mechanism of a sewing machine, which adopts the technical scheme that the transmission mechanism comprises a base 23, a sewing disc 1, a thread shifting device 16, a thread hooking device 17, a driving mechanism 15 and a hand wheel 2, wherein the sewing disc 1 is rotationally connected to the base 23 and is of a disc-shaped structure, the sewing disc 1 is provided with a circular groove, the diameter of the circular groove is smaller than that of the sewing disc 1, teeth are uniformly distributed on the inner circumferential surface of the groove, the sewing disc 1 is used for hanging a piece to be sewn and feeding the piece to a sewing area, the driving mechanism 15 and the sewing disc 1 are driven by the hand wheel 2, the driving mechanism 15 is respectively connected with the thread shifting device 16 and the thread hooking device 17, the driving mechanism 15 comprises a worm 3, a worm wheel 4, a first bevel gear 18 and a second bevel gear 5, the worm 3 is connected with the hand wheel 2 and the first bevel gear 18, the first bevel gear 18 is engaged with the second bevel gear 5 in order to turn the axial direction of rotation, and the worm 3 is engaged with the worm wheel 4 in order to turn the axial direction of rotation from the horizontal direction to the vertical direction.

As a preferred technical solution of the present invention, the thread hooking device 17 includes a first rotating disk 6, a connecting rod 7, a swing rod 13, and a hook 14, the first rotating disk 6 is coaxially connected to the worm 3, the base 23 is further provided with a supporting rod 19, the supporting rod 19 is used for fixing the swing rod 13, the supporting rod 19 is hinged to the swing rod 13, one end of the connecting rod 7 is hinged to the first rotating disk 6, the other end of the connecting rod 7 is hinged to one end of the swing rod 13, and the hook 14 is connected to the other end of the swing rod 13, so as to hook and sew a garment piece.

As a preferred technical solution of the present invention, the wire shifting device 16 includes a second turntable 8, a shifting lever 10, a shifting piece 20, and a shaft 21, the shaft 21 is vertically connected to the base 23, the second turntable 8 is coaxially connected to the second bevel gear 5, the shifting lever 10 is "U" shaped, the shaft 21 is connected to the shifting lever 10 via a shaft, the shifting piece 20 is connected to one end of the shifting lever 10, a protrusion 9 is formed on the circumference of the second turntable 8, so as to jack up one end of the shifting lever 10 and make the shifting piece 20 at the other end swing for shifting wire, the other end of the shifting lever 10 is slidably connected to the outer circumferential surface of the second turntable 8, a torsion spring 12 is pressed at the connection position between the shaft 21 and the shifting lever 10, and the torsion spring 12 is used for increasing the damping of the shifting lever 10.

As a preferred technical scheme of the utility model, the bulge 9 is made of wear-resistant material, and has the function of increasing the wear resistance and prolonging the service life of the mechanism.

As a preferred technical solution of the present invention, the base 23 is further provided with a shield 24, and the shield 24 is enclosed outside the wire-shifting device 16 to prevent the operator from being injured due to misoperation.

In a preferred embodiment of the present invention, the worm wheel 4 is further connected to a first gear 11, and the first gear 11 is engaged with teeth uniformly distributed on an inner circumferential surface of the dial 1 in order to rotate the dial along the shaft.

As a preferred technical scheme of the utility model, a rotating handle 22 is connected with the upper part of the worm wheel 4 through a shaft, and the outer circumferential surface of the rotating handle 22 is provided with anti-slip threads for facilitating screwing.

The working principle of the utility model is as follows: firstly, a hand wheel 2 is rotated to drive a worm 3, a first bevel gear 18 and a first rotary table 6 which are coaxial with the hand wheel to rotate, the worm 3 drives a worm wheel 4 to rotate, the worm wheel 4 is coaxial with a first gear 11, the first gear 11 is driven to rotate, the first gear 11 is meshed with a sewing disc 1, so that the sewing disc 1 is driven to rotate, and the clothes pieces of the sweater are rotated and fed; the worm wheel 4 drives a second turntable 8 in the wire shifting device 16 to rotate, the outer circumferential surface of the second turntable 8 is tightly attached to one end of a shifting rod 10, a protrusion 9 is arranged on the outer circumferential surface of the second turntable 8, the shifting rod 10 is connected with a shaft 21, a torsion spring 12 is arranged at the connection position in a pressing mode, and when the protrusion 9 jacks up the shifting rod 10 once, a shifting piece 20 connected to the other end of the shifting rod 10 shifts the wire once; the first rotating disc 6 rotates to drive the thread hooking device 17 to move, the connecting rod 7 hinged with the first rotating disc 6 moves, the connecting rod 7 is hinged with the swing rod 13, the swing rod 13 can rotate by the supporting rod 19, the crochet needle 14 connected on the swing rod 13 carries out thread hooking work, in addition, the worm wheel 4 can also be driven by the rotating handle 22 connected with the shaft of the worm wheel 4, the rotating handle 22 is rotated, and the worm wheel 4 coaxial with the rotating handle is driven to rotate.

The mechanical connection according to the utility model is a conventional means used by the skilled person and can be suggested by limited trials and is common general knowledge.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a linking machine drive mechanism which characterized in that: the thread taking-up device comprises a base (23), a sewing disc (1), a thread taking-up device (16), a thread hooking device (17), a driving mechanism (15) and a hand wheel (2), wherein the sewing disc (1) is rotatably connected to the base (23) and is of a disc-shaped structure, a circular groove is formed in the sewing disc (1), the diameter of the circular groove is smaller than that of the sewing disc (1), teeth are uniformly distributed on the inner circumferential surface of the groove, the driving mechanism (15) and the sewing disc (1) are driven by the hand wheel (2), the driving mechanism (15) is respectively connected with the thread taking-up device (16) and the thread hooking device (17), the driving mechanism (15) comprises a worm (3), a worm wheel (4), a first bevel gear (18) and a second bevel gear (5), the worm (3) is connected with the hand wheel (2) and the first bevel gear (18) through a shaft, the first bevel gear (18) is meshed with the second bevel gear (5), the worm (3) is meshed with the worm wheel (4).

2. The linking machine drive of claim 1, wherein: the thread hooking device (17) comprises a first rotary table (6), a connecting rod (7), an oscillating rod (13) and a crochet hook (14), the first rotary table (6) is coaxially connected with the worm (3), a supporting rod (19) is further arranged on the base (23), the supporting rod (19) is hinged to the oscillating rod (13), one end of the connecting rod (7) is hinged to the first rotary table (6), the other end of the connecting rod (7) is hinged to one end of the oscillating rod (13), and the crochet hook (14) is connected with the other end of the oscillating rod (13).

3. The linking machine drive of claim 1, wherein: the wire shifting device (16) comprises a second turntable (8), a shifting rod (10), a shifting sheet (20) and a shaft (21), the shaft (21) is vertically connected with a base (23), the second turntable (8) is coaxially connected with a second bevel gear (5), the shifting rod (10) is U-shaped, the shaft (21) is connected with the shifting rod (10) through the shaft, the shifting sheet (20) is connected with one end of the shifting rod (10), protrusions (9) are arranged on the circumference of the second turntable (8), the other end of the shifting rod (10) is connected with the outer circumferential surface of the second turntable (8) in a sliding mode, and a torsion spring (12) is arranged at the connection position of the shaft (21) and the shifting rod (10) in a pressing mode.

4. A linking machine drive according to claim 3, wherein: the bulges (9) are made of wear-resistant materials.

5. The linking machine drive of claim 1, wherein: a blocking cover (24) is further arranged on the base (23), and the blocking cover (24) is enclosed and blocked outside the wire shifting device (16).

6. The linking machine drive of claim 1, wherein: the worm wheel (4) is connected with a first gear (11) in a shaft mode, and the first gear (11) is meshed with teeth uniformly distributed on the inner circumferential surface of the sewing disc (1).

7. The linking machine drive of claim 1, wherein: a rotating handle (22) is also connected with the upper part of the worm wheel (4) through a shaft, and anti-skid grains are arranged on the outer circumferential surface of the rotating handle (22).