CN216864499U

CN216864499U - Synthesize pay-off thick material machine gauge needle regulation and quick switching device

Info

Publication number: CN216864499U
Application number: CN202121540140.XU
Authority: CN
Inventors: 韩玉春; 祁贲; 万建中
Original assignee: Shanggong Sewing Machinery Zhejiang Co ltd
Current assignee: Shanggong Sewing Machinery Zhejiang Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-07-01
Anticipated expiration: 2031-07-07

Abstract

The utility model provides a needle pitch adjusting and fast switching device of a comprehensive thick material feeding machine, and belongs to the technical field of thick material feeding machines. It has solved the trouble problem of current thick material machine gauge needle switching. This thick material machine includes aircraft nose and pay-off axle, regulation and quick switching device are including installing the first adjust knob on the aircraft nose, the second adjust knob, the driver, the linkage subassembly can be around self middle pivoted swing board, the bottom of swing board is passed through the linkage subassembly and is linked to each other with the pay-off axle, it supports the first elastic component that leans on the second adjust knob to be equipped with the bottom that enables swing board between swing board and the aircraft nose, the driving piece can drive swing board and overcome the elasticity rotation of first elastic component and make the top of swing board support and lean on first adjust knob, swing board rotation can drive the pay-off axle through the linkage subassembly and rotate. This needle pitch regulation and quick auto-change over device has the advantage that the realization that makes the needle pitch of thick material machine can be quick switches.

Description

Synthesize pay-off thick material machine gauge needle regulation and quick switching device

Technical Field

The utility model belongs to the technical field of thick material machines, and relates to a needle pitch adjusting and fast switching device of a comprehensive thick material feeding machine.

Background

A sewing machine is a machine that uses one or more stitches to form one or more stitches in a work material.

In the sewing machine, the needle pitch needs to be adjusted when sewing, and for example, in the conventional needle pitch adjusting structure of the sewing machine, the chinese patent document discloses a sewing machine and a feed adjusting mechanism of the sewing machine [ application number: 201620781137. X; authorization notice number: CN205839337U ], which comprises an adjusting stud, one end of which is provided with a rotating head, the other end of which is provided with an elastic cushion block, the adjusting stud is in threaded fit with the casing, and when the rotating head drives the adjusting stud to rotate around the axis, the adjusting stud moves along the axis; the needle pitch adjusting mechanism further comprises an adjusting head, a mounting hole for mounting the adjusting head is formed in the machine shell, the adjusting head can slide in the mounting hole along the axial direction, one end of the adjusting head is in contact with the elastic cushion block, and the other end of the adjusting head is in contact with the needle pitch adjuster.

When the sewing machine sews materials, the sewing machine can meet the situation that different procedures are switched back and forth, so that the sewing machine can sew by using different needle pitches, and the needle pitches need to be adjusted at the moment. The stitch length adjusting structure of the structure needs to stop to adjust the second stitch length for sewing when the stitch length needs to be adjusted for sewing, and still needs to adjust the stitch length again after the second stitch length is sewn, and the sewing can be continued only by recovering the previous first stitch length. Therefore, the sewing machine using the needle pitch adjusting structure is very inconvenient to operate in actual sewing, and meanwhile, the precision of two needle pitches cannot be guaranteed.

Disclosure of Invention

The utility model aims to provide a device for adjusting and quickly switching the needle pitch of a comprehensive thick material feeding machine aiming at the problems in the prior art, and solves the technical problem of quickly switching the needle pitch of the thick material feeding machine.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a synthesize thick material machine needle pitch regulation and quick switching device of pay-off, thick material machine includes aircraft nose and pay-off axle, adjusts and quick switching device is including installing first adjust knob and the second adjust knob on the aircraft nose, its characterized in that, still includes driver, linkage subassembly and can wind self middle pivoted swing board, the bottom of swing board is passed through the linkage subassembly and is linked to each other with the pay-off axle, be equipped with between swing board and the aircraft nose and enable the bottom of swing board and support the first elastic component that leans on the second adjust knob, the driving piece can drive the elasticity rotation that the swing board overcome first elastic component and make the top of swing board support and lean on first adjust knob, swing board rotation can drive the pay-off axle through the linkage subassembly and rotate.

The first adjusting knob is rotated to adjust one needle pitch, the second adjusting knob is rotated to adjust another needle pitch, during sewing, the bottom of the swing plate is supported on the second adjusting knob by the first elastic piece, namely, the needle pitch at the moment is the needle pitch adjusted by the second adjusting knob, when the needle pitch is needed to be switched, the top of the swing plate is supported on the first adjusting knob by the elastic rotation of the driving piece driving the swing plate overcoming the first elastic piece, namely, the needle pitch at the moment is the needle pitch adjusted by the first adjusting knob, the needle pitch can be switched without stopping the machine by the adjusting and fast switching device, and the processing efficiency is improved. The linkage subassembly plays the effect of linkage, and the position that supports after making the swing board swing and lean on transmits for the pay-off axle through the linkage subassembly, realizes the linkage rotation of pay-off axle to change the gauge needle of thick feeder. The scale ranges of the first adjusting knob and the second adjusting knob in the adjusting and quick switching device are the same and are 0-9, the scales of the first adjusting knob and the second adjusting knob are different when the adjusting and quick switching device is used, and in practice, the minimum numerical value of the needle pitch on the first adjusting knob and the maximum numerical value of the needle pitch on the second adjusting knob can be the same, namely, the numerical value of the needle pitch of the thick material machine is large, and the adjustable range is large.

In the needle pitch adjusting and fast switching device of the comprehensive thick material feeding machine, a switching shaft is rotatably arranged in the machine head, penetrates through the middle of the swinging plate and is fixedly connected with the swinging plate.

In the needle pitch adjusting and fast switching device of the comprehensive thick material feeding machine, the driver is fixed in the machine head, the top of the swinging plate is positioned between the first adjusting knob and the driver, the swinging plate comprises a pushing part with the top protruding, and an output shaft of the driver can abut against the pushing part and can push the swinging plate to rotate around the switching shaft. The driver is fixed in the aircraft nose, does not occupy the outside installation space of aircraft nose, makes thick material machine overall structure compact, and the area at increase swing board top is pushed up in the setting of promotion portion, guarantees that the output shaft of driver can support and lean on swing board.

In the needle pitch adjusting and fast switching device of the comprehensive thick material feeding machine, one side of the swing plate, which is close to the first adjusting knob and the second adjusting knob, is a planar abutting surface.

In the needle pitch adjusting and fast switching device of the comprehensive thick material feeding machine, the first elastic part is a tension spring or a torsion spring.

In the above device for adjusting and rapidly switching the needle pitch of the integrated thick material feeding machine, the bottom of the oscillating plate is provided with a through adjusting hole, the bottom of the adjusting hole is provided with an arc-shaped adjusting surface, the linkage assembly comprises a first crank, an eccentric oscillating frame, an oscillating shaft, a second crank, a connecting rod, a third crank, a second elastic element, a rotatable rotating shaft, a lower shaft and a fourth crank, one end of the first crank is fixedly connected with the feeding shaft, the other end of the first crank is hinged with the eccentric oscillating frame, one end of the oscillating shaft is fixedly connected with the eccentric oscillating frame, one end of the second crank is fixedly connected with the other end of the oscillating shaft, the other end of the second crank is hinged with one end of the connecting rod, one end of the third crank is fixedly connected with the rotating shaft, the other end of the third crank is hinged with the other end of the connecting rod, and a hinged joint of the third crank and the connecting rod is provided with a convex adjusting rod, the adjusting rod penetrates through the adjusting hole, two ends of the second elastic piece respectively act on the machine head and the eccentric swing frame, the eccentric swing frame enables the adjusting rod to always abut against the adjusting surface through the swing shaft, the second crank and the connecting rod under the action of the second elastic piece, one end of the fourth crank is fixedly connected with the lower shaft, and the other end of the fourth crank is hinged to the eccentric swing frame. The arrangement of the second elastic piece enables the adjusting rod to always abut against the adjusting surface, and the adjusting rod can move along the adjusting surface, so that the offset caused by the rotation of the swinging plate can be absorbed, and the swinging plate and the linkage assembly cannot be clamped during transmission; the swing plate rotates to enable the third crank to rotate around the rotating shaft, so that the connecting rod moves to drive the second crank to rotate, the second crank rotates to drive the swing shaft to rotate and deflect a certain angle, the eccentric swing frame changes the rotating displacement of the first crank, the lower shaft provides power, the lower shaft rotates to enable the first crank to rotate through the fourth crank and the eccentric swing frame, and the feeding shaft is driven to rotate to achieve feeding corresponding to the needle pitch.

In the needle pitch adjusting and fast switching device of the comprehensive thick material feeding machine, the second elastic part is a tension spring or a torsion spring.

Compared with the prior art, the needle pitch adjusting and fast switching device of the comprehensive thick material feeding machine provided by the utility model has the following advantages:

1. this thick material machine gauge needle is adjusted and quick switching device can set for a great value gauge needle and a less value gauge needle in advance, at the in-process of sewing, can carry out the quick repetition switch-over of gauge needle through driver, swing board, linkage subassembly, need not to reset through adjust knob, guarantees the accuracy of two gauge needles, makes this thick material machine need not to shut down and can realize the switch-over of gauge needle, improves work efficiency.

2. The driver of the thick material machine needle pitch adjusting and quick switching device is arranged inside the machine head, does not occupy the installation space outside the machine head, and enables the whole structure of the thick material machine to be compact.

Drawings

Fig. 1 is a schematic view of the overall structure of the needle pitch adjusting and fast switching device of the thick material machine.

Fig. 2 is a schematic diagram of the overall structure of the needle pitch adjusting and fast switching device of the thick material machine.

Fig. 3 is a schematic structural diagram of the thicknesser machine.

FIG. 4 is a first state diagram of the swing plate of the needle pitch adjusting and fast switching device of the thick material machine.

FIG. 5 is a second state diagram of the swing plate of the needle pitch adjusting and fast switching device of the thick material machine.

In the figure, 1, a machine head; 2. a feed shaft; 3. a first adjustment knob; 4. a second adjustment knob; 5. a driver; 6. a linkage assembly; 61. a first crank; 62. an eccentric swing frame; 63. a swing shaft; 64. a second crank; 65. a connecting rod; 66. a third crank; 67. a second elastic member; 68. a rotating shaft; 69. adjusting a rod; 610. a lower shaft; 611. a fourth crank; 7. a swing plate; 71. a pushing part; 72. an abutting surface; 73. an adjustment hole; 74. adjusting the surface; 8. a first elastic member; 9. and (6) switching the shaft.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the thick material machine comprises a machine head 1, a feeding shaft 2 and a needle pitch adjusting and fast switching device, the needle pitch adjusting and fast switching device of the thick material machine comprises a first adjusting knob 3, a second adjusting knob 4, a driver 5, a linkage component 6 and a swinging plate 7, and the swinging plate 7 is connected with the feeding shaft 2 through the linkage component 6.

First adjust knob 3, second adjust knob 4 all install on aircraft nose 1, and rotatable being equipped with switching shaft 9 in the aircraft nose 1, switching shaft 9 passes the centre of swing board 7, and switching shaft 9 links firmly with swing board 7 mutually, and swing board 7 rotates around switching shaft 9.

The driver 5 is fixed in the machine head 1, in the embodiment, the driver 5 is an electromagnet, and in the actual production, the driver 5 can be an air cylinder or a motor. The top of the swing plate 7 is positioned between the first adjusting knob 3 and the driver 5, the swing plate 7 comprises a pushing part 71 with the top protruding, and an output shaft of the driver 5 can abut against the pushing part 71 and can push the swing plate 7 to rotate around the middle of the swing plate. One side of the swing plate 7 close to the first adjusting knob 3 and the second adjusting knob 4 is a planar abutting surface 72.

A first elastic element 8 which can enable the bottom of the swing plate 7 to abut against the second adjusting knob 4 is arranged between the swing plate 7 and the machine head 1, in the embodiment, the first elastic element 8 is a tension spring, and in actual production, the first elastic element 8 can be a torsion spring.

The bottom end of the swing plate 7 is connected with the feeding shaft 2 through the linkage assembly 6, specifically, the bottom of the swing plate 7 is provided with a through adjusting hole 73, the bottom of the adjusting hole 73 is provided with an arc-shaped adjusting surface 74, the linkage assembly 6 comprises a first crank 61, an eccentric swing frame 62, a swing shaft 63, a second crank 64, a connecting rod 65, a third crank 66, a second elastic piece 67, a rotatable rotating shaft 68, a lower shaft 610 and a fourth crank 611, one end of the first crank 61 is fixedly connected with the feeding shaft 2, the other end of the first crank 61 is hinged with the eccentric swing frame 62, one end of the swing shaft 63 is fixedly connected with the eccentric swing frame 62, one end of the second crank 64 is fixedly connected with the other end of the swing shaft 63, the other end of the second crank 64 is hinged with one end of the connecting rod 65, one end of the third crank 66 is fixedly connected with the rotating shaft 68, the other end of the third crank 66 is hinged with the other end of the connecting rod 65, and the hinged point of the third crank 66 and the connecting rod 65 is provided with a protrudingly arranged adjusting rod 69, the adjusting rod 69 passes through the adjusting hole 73, two ends of the second elastic piece 67 respectively act on the machine head 1 and the eccentric swinging frame 62, the eccentric swinging frame 62 can enable the adjusting rod 69 to always abut against the adjusting surface 74 through the swinging shaft 63, the second crank 64 and the connecting rod 65 under the action of the second elastic piece 67, one end of the fourth crank 611 is fixedly connected with the lower shaft 610, and the other end of the fourth crank 611 is hinged with the eccentric swinging frame 62. In this embodiment, the second elastic member 67 is a tension spring, and in actual production, the second elastic member 67 may be a torsion spring.

Before the sewing machine works, the smaller needle pitch and the larger needle pitch needed by sewing materials are calculated firstly, then the second adjusting knob 4 is rotated to adjust the smaller needle pitch, the first adjusting knob 3 is rotated to adjust the larger needle pitch, and the needle pitch is set in advance. As shown in fig. 4, under the action of the elastic force of the first elastic member 8, the bottom of the swing plate 7 abuts against the second adjusting knob 4, and the position of the swing plate 7 is transmitted to the feeding shaft 2 through the linkage assembly 6, so that the feeding shaft 2 rotates to a set position, and the thick material machine is located at a corresponding smaller needle pitch. As shown in fig. 5, the driver 5 works, the output shaft of the driver 5 overcomes the elastic force of the first elastic member 8 to enable the top of the swing plate 7 to abut against the first adjusting knob 3, the position of the swing plate 7 is transmitted to the feeding shaft 2 through the linkage assembly 6, the feeding shaft 2 is rotated to a set position, and therefore the thick material machine is located at a corresponding larger needle pitch.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms of the head 1, the feeding shaft 2, the first adjusting knob 3, the second adjusting knob 4, the driver 5, the linkage assembly 6, the first crank 61, the eccentric swing frame 62, the swing shaft 63, the second crank 64, the connecting rod 65, the third crank 66, the second elastic member 67, the rotating shaft 68, the adjusting rod 69, the swing plate 7, the pushing portion 71, the abutting surface 72, the adjusting hole 73, the adjusting surface 74, the first elastic member 8, the switching shaft 9, the lower shaft 610, the fourth crank 611, 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 as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A needle pitch adjusting and fast switching device of a comprehensive thick material feeding machine comprises a machine head (1) and a feeding shaft (2), the fast switching device comprises a first adjusting knob (3) and a second adjusting knob (4) which are arranged on the machine head (1), it is characterized by also comprising a driver (5), a linkage component (6) and a swinging plate (7) which can rotate around the middle of the driver, the bottom end of the swing plate (7) is connected with the feeding shaft (2) through a linkage component (6), a first elastic piece (8) which can enable the bottom of the swing plate (7) to abut against the second adjusting knob (4) is arranged between the swing plate (7) and the machine head (1), the driver can drive the swinging plate (7) to rotate against the elastic force of the first elastic piece (8) to enable the top of the swinging plate (7) to abut against the first adjusting knob (3), the swing plate (7) can drive the feeding shaft (2) to rotate through the linkage assembly (6).

2. A needle pitch adjusting and fast switching device of a combined thick material feeding machine according to claim 1, characterized in that a switching shaft (9) is rotatably arranged in the machine head (1), the switching shaft (9) passes through the middle of the swinging plate (7), and the switching shaft (9) is fixedly connected with the swinging plate (7).

3. A device for adjusting and rapidly switching the needle pitch of a combined thick material feeding machine according to claim 2, wherein the driver (5) is fixed in the machine head (1), the top of the swing plate (7) is located between the first adjusting knob (3) and the driver (5), the swing plate (7) comprises a pushing part (71) with a protruding top, and the output shaft of the driver (5) can abut against the pushing part (71) and can push the swing plate (7) to rotate around the switching shaft (9).

4. A device for adjusting and rapidly switching the needle pitch of a combined thick material feeding machine according to claim 1, 2 or 3, wherein one side of the swing plate (7) close to the first adjusting knob (3) and the second adjusting knob (4) is a planar abutting surface (72).

5. A device for adjusting and rapidly switching needle pitch of a combined thick material feeding machine according to claim 1, 2 or 3, wherein the first elastic member (8) is a tension spring or a torsion spring.

6. A needle distance adjusting and fast switching device of a comprehensive thick material feeding machine according to claim 1, 2 or 3, characterized in that the bottom of the swing plate (7) is provided with a through adjusting hole (73), the bottom of the adjusting hole (73) is provided with an arc-shaped adjusting surface (74), the linkage assembly (6) comprises a first crank (61), an eccentric swing frame (62), a swing shaft (63), a second crank (64), a connecting rod (65), a third crank (66), a second elastic member (67), a rotatable rotating shaft (68), a lower shaft (610) and a fourth crank (611), one end of the first crank (61) is fixedly connected with the feeding shaft (2), the other end is hinged with the eccentric swing frame (62), one end of the swing shaft (63) is fixedly connected with the eccentric swing frame (62), one end of the second crank (64) is fixedly connected with the other end of the swing shaft (63), the other end of the second crank (64) is hinged with one end of a connecting rod (65), one end of the third crank (66) is fixedly connected with the rotating shaft (68), the other end of the third crank (66) is hinged with the other end of the connecting rod (65), and the hinge point of the third crank (66) and the connecting rod (65) is provided with a protrudingly arranged adjusting rod (69), the adjusting rod (69) passes through the adjusting hole (73), two ends of the second elastic piece (67) respectively act on the machine head (1) and the eccentric swinging frame (62), under the action of a second elastic piece (67), the eccentric swinging frame (62) can enable the adjusting rod (69) to be always abutted against the adjusting surface (74) through the swinging shaft (63), the second crank (64) and the connecting rod (65), one end of the fourth crank (611) is fixedly connected with the lower shaft (610), and the other end of the fourth crank (611) is hinged with the eccentric swinging frame (62).

7. A device for adjusting and rapidly switching the needle pitch of a combined thick material feeding machine according to claim 6, wherein the second elastic member (67) is a tension spring or a torsion spring.