CN220564868U - Thread lifting and threading mechanism of industrial sewing machine - Google Patents

Abstract

The utility model provides a thread lifting and threading mechanism of an industrial sewing machine, which comprises a base body, a rotatable thread lifting and threading bracket arranged on the base body and a groove arranged on one side of the thread lifting and threading bracket, wherein a cam rotates along with a driving shaft, the rotating position of the cam is positioned in the groove, threading holes are formed in two sides of the thread lifting and threading bracket positioned in the groove, and when threads pass through the threading holes, the thread lifting and threading bracket rotates relative to the base body to a position far away from the cam; the utility model increases the convenience in the threading and threading process.

Description

Thread lifting and threading mechanism of industrial sewing machine

Technical Field

The utility model relates to the field of sewing machines, in particular to a thread lifting and threading mechanism of an industrial sewing machine.

Background

The four-needle six-thread sewing machine is mainly used for the splicing and splicing of sewing pieces, and is provided with four upper threads and two lower threads for splicing and combining during operation, so that the four-needle six-thread sewing machine has good splicing effect.

The existing four-needle six-thread industrial sewing machine in the market at present, such as China patent document data discloses a manual adjusting device (patent application number: 201120176427.9) of the four-needle six-thread sewing machine, the sewing machine is provided with a fixed seat body and a crank arm arranged on the fixed seat body, a driving shaft is arranged on the crank arm, a first gear is arranged on the crank arm in a penetrating way through the driving shaft, the manual adjusting device is provided with a control rod penetrating the crank arm, a control piece and an elastic piece are arranged on the control rod, a second gear corresponding to the first gear is arranged inside the crank arm, the control rod is normally supported by the elastic piece to link the second gear to be separated from the first gear, and the manual adjusting device (patent application number: 201120176427.9) of the four-needle six-thread sewing machine can be stressed to compress the elastic piece to link the second gear to be meshed with the first gear, so that the first gear and the driving shaft are in a rotating way, and the sewing machine is in a sewing way, and the needle is retracted.

The manual adjusting device of this kind of structure at present articulates in the middle department of machine head top has the line that carries to cross the line frame, the cam sets up in the middle of the aircraft nose of line frame below is crossed to this line that carries, carry line and cross line frame and cam mutually support, if when threading trades the line or when taking place the stranded conductor need take off stitches during the during operation, the workman need pass through manual upset flip, then carry line through manual upset and cross line frame, because the line that carries passes the line frame and the structure of cam is the setting of staggering, and the structure is complicated relatively, the workman of operator has the condition of the operation of not knowing from the hand down, the operation is more troublesome, it is very troublesome to make the line that carries line to cross line frame upset.

Disclosure of Invention

The utility model aims to provide a thread lifting and threading mechanism of an industrial sewing machine, which can increase the convenience in the threading and threading process.

In order to solve the technical problems, the utility model provides a thread lifting and threading mechanism of an industrial sewing machine, which comprises a base body, a thread lifting and threading bracket rotatably arranged on the base body, and a groove arranged on one side of the thread lifting and threading bracket, wherein a cam rotates along with a driving shaft, the rotating position of the cam is positioned in the groove, threading holes are formed in two sides of the thread lifting and threading bracket, and when threads pass through the threading holes, the thread lifting and threading bracket rotates relative to the base body to a position far away from the cam.

Further, the lower part of the wire lifting and passing support is connected with an extension plate, a handle is rotatably arranged on the base, a limit hook is arranged at the lower end of the handle, the limit hook is in limit fit with the extension plate, and when the handle rotates to enable the limit hook to be separated from the extension plate, the wire lifting and passing support can rotate relative to the base.

Further, a limit groove is formed in one side of the limit hook, a bump is arranged on one side of the extension plate, and the bump is buckled in the limit groove, so that the limit hook is in limit fit with the extension plate.

Further, the handle is rotationally connected with the seat body through the first rotating shaft, and a first torsion spring is connected between the first rotating shaft and the seat body.

Further, the wire lifting and passing support is rotationally connected with the seat body through a second rotating shaft, and a second torsion spring is connected between the second rotating shaft and the seat body.

Further, the handle end has a paddle.

The thread lifting thread passing bracket is poked to a position far away from the cam when the follow-up sewing machine works in need of threading, so that the groove is separated from the rotating position of the cam, at the moment, the thread end can conveniently pass through the threading holes on two sides of the groove to finish threading operation, and the thread lifting thread passing bracket is not influenced by parts such as the cam in the threading process, so that the threading convenience is improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic diagram of the connection of the lifting wire passing bracket and the handle in the utility model.

Fig. 3 is a schematic diagram of a first shaft and a second shaft according to the present utility model.

Fig. 4 is a schematic diagram of a first rotating shaft and a second rotating shaft according to the present utility model.

Fig. 5 is a schematic diagram of a first shaft and a second shaft according to the present utility model.

Fig. 6 is a schematic diagram of the lifting wire passing bracket in the normal state.

Fig. 7 is a schematic view of the present utility model when the thread lifting and threading bracket is lifted for threading.

Reference numerals: 1. a base; 2. lifting and threading the wire through the wire bracket; 3. a groove; 4. a cam; 5. a drive shaft; 6. a threading hole; 7. an extension plate; 8. a handle; 9. a limit hook; 10. a limit groove; 11. a bump; 12. a first rotating shaft; 13. a first torsion spring; 14. a second rotating shaft; 15. a second torsion spring; 16. a pulling piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1-7, the utility model provides a thread lifting and threading mechanism of an industrial sewing machine, which comprises a base 1, a thread lifting and threading bracket 2 rotatably arranged on the base 1, a groove 3 arranged on one side of the thread lifting and threading bracket 2, a cam 4 rotates along with a driving shaft 5, the rotating position of the cam 4 is positioned in the groove 3, threading holes 6 are arranged on two sides of the thread lifting and threading bracket 2 positioned in the groove 3, and when a thread passes through the threading holes 6, the thread lifting and threading bracket 2 rotates relative to the base 1 to a position far away from the cam 4.

When the follow-up seam splicing machine works, the thread lifting thread passing support is shifted to a position far away from the cam, so that the groove is separated from the rotating position of the cam, at the moment, the thread end can conveniently penetrate through the thread holes on two sides of the groove to finish the threading operation, and the thread passing operation cannot be influenced by parts such as the cam in the threading process, so that the threading is convenient to increase.

One end of the driving shaft is connected to the motor, and the motor controls the driving shaft to rotate so as to drive the cam to rotate in the groove.

Preferably, the lower part of the lifting wire passing bracket 2 is connected with an extension plate 7, a handle 8 is rotatably arranged on the base 1, a limit hook 9 is arranged at the lower end of the handle 8, the limit hook 9 is in limit fit with the extension plate 7, and when the handle 8 rotates to enable the limit hook 9 to be separated from the extension plate 7, the lifting wire passing bracket 2 can rotate relative to the base 1.

Specifically, through the arrangement of the limiting hooks and the extending plates, the extending plates are limited through the limiting hooks when the wire lifting wire passing bracket is used normally, so that the position stability of the wire lifting wire passing bracket is ensured, and the condition that the wire lifting wire passing bracket bounces automatically is avoided; when the lifting wire passing bracket is required to rotate, the handle is rotated, so that the limiting hooks are separated from the extending plate, and the lifting wire passing bracket can rotate relative to the base body.

Preferably, a limit groove 10 is formed in one side of the limit hook 9, a bump 11 is formed in one side of the extension plate 7, and the bump 11 is buckled in the limit groove 10, so that the limit hook 9 is in limit fit with the extension plate 7.

Specifically, when spacing hook carries out spacingly to the extension board, detain through the bump and establish to the spacing groove for the relative position between spacing hook and the extension board is spacing, and when the handle position rotates, the spacing groove rotates to the position of keeping away from the bump, makes bump and spacing groove break away from each other, and then makes the line that carries cross line support and can rotate.

Preferably, the handle 8 is rotatably connected with the base 1 through the first rotating shaft 12, and a first torsion spring 13 is connected between the first rotating shaft 12 and the base 1.

Specifically, through the setting of first pivot and first torsional spring for the handle is when normal use, carries out spacingly to it through the torsional spring, and after pushing the handle and making the handle rotate along first pivot, loosen the thrust to the handle and can make first torsional spring drive the handle and carry out automatic re-setting.

Preferably, the lifting wire passing bracket 2 is rotatably connected with the seat body 1 through a second rotating shaft 14, and a second torsion spring 15 is connected between the second rotating shaft 14 and the seat body 1.

Specifically, through the setting of second pivot and second torsional spring for after pushing the handle to break away from the spacing groove with the bump, carry the line and cross line support and rotate along the second pivot under the effect of second torsional spring, and then make carry the line and cross line support and rotate to the position of keeping away from the cam by oneself under the effect of second torsional spring, increase the convenience of threading.

Preferably, the end of the handle 8 has a paddle 16 to increase the contact area of the pushing end of the handle and improve the accuracy of pushing the handle.

The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.

Claims (6)

1. A carry line thread passing mechanism of industrial sewing machine, its characterized in that: including pedestal (1), rotatable wire lifting wire passing support (2) on pedestal (1), locate groove (3) of wire lifting wire passing support (2) one side, cam (4) rotate along with drive shaft (5), and the rotation position of cam (4) is arranged in groove (3), wire lifting wire passing support (2) are located the both sides of groove (3) all are equipped with through wires hole (6), when the wire passed through wires hole (6), wire lifting wire passing support (2) rotated for pedestal (1) to the position of keeping away from cam (4).

2. The thread lifting and threading mechanism of an industrial sewing machine of claim 1 wherein: the lower part of the lifting wire passing support (2) is connected with an extension plate (7), a handle (8) is rotatably arranged on the base body (1), a limiting hook (9) is arranged at the lower end of the handle (8), the limiting hook (9) is in limiting fit with the extension plate (7), and when the handle (8) rotates to enable the limiting hook (9) to be separated from the extension plate (7), the lifting wire passing support (2) can rotate relative to the base body (1).

3. The thread lifting and threading mechanism of an industrial sewing machine of claim 2 wherein: a limit groove (10) is formed in one side of the limit hook (9), a bump (11) is arranged on one side of the extension plate (7), and the bump (11) is buckled in the limit groove (10) so that the limit hook (9) is in limit fit with the extension plate (7).

4. The thread lifting and threading mechanism of an industrial sewing machine of claim 2 wherein: the handle (8) is rotationally connected with the base body (1) through a first rotating shaft (12), and a first torsion spring (13) is connected between the first rotating shaft (12) and the base body (1).

5. The thread lifting and threading mechanism of an industrial sewing machine of claim 1 wherein: the lifting wire passing bracket (2) is rotationally connected with the seat body (1) through a second rotating shaft (14), and a second torsion spring (15) is connected between the second rotating shaft (14) and the seat body (1).

6. The thread lifting and threading mechanism of an industrial sewing machine of claim 2 wherein: the end of the handle (8) is provided with a poking piece (16).