CN216107534U

CN216107534U - Rotating shuttle branching mechanism

Info

Publication number: CN216107534U
Application number: CN202120517135.0U
Authority: CN
Inventors: 罗晨航; 李军飞; 黄学土; 郑聪; 高东
Original assignee: Jack Technology Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2022-03-22
Anticipated expiration: 2031-03-11

Abstract

The utility model provides a rotating shuttle separating mechanism, and belongs to the technical field of machinery. The thread separating mechanism solves the problems of noise and large abrasion caused by the fact that the existing thread separating structure of the rotating shuttle only carries out one effective thread separating operation twice. The rotating shuttle thread separating mechanism comprises a shuttle frame, wherein a rotating shuttle mechanism is arranged on the shuttle frame; the shuttle frame is provided with a thread separating mechanism matched with the rotating shuttle mechanism; the branching mechanism is connected with a driving device; the driving device drives the wire separating mechanism to perform wire separating action. The utility model can realize that one lock stitch is formed for only one time of thread separation, and reduces the collision frequency compared with the prior structure that one lock stitch needs to perform two times of shuttle opening actions, thereby reducing the noise and the abrasion of the rotating shuttle mechanism and having great economic effect.

Description

Rotating shuttle branching mechanism

Technical Field

The utility model belongs to the technical field of machinery, relates to a sewing machine, and particularly relates to a rotating shuttle thread separating mechanism.

Background

The rotating shuttle thread separating mechanism of the double-needle machine popular in the market is provided with a section of stepped eccentric shaft, one end of a thread separating hook connecting rod is sleeved on the eccentric shaft, and the other end of the thread separating hook connecting rod is sleeved on a thread separating hook connecting rod shaft arranged on a thread separating hook rod. The thread separating hook rod is hinged on the shuttle frame through a short shaft of the thread separating hook rod. One end of the branching hook rod is provided with a branching hook. In the operation process of the rotating shuttle thread separating mechanism, due to the action of the eccentric force, the rotating shuttle can drive the thread separating hook to periodically swing with a certain amplitude while rotating. Meanwhile, the motion inertia generated when the rotating shuttle runs can cause the positioning buckling surface of the rotating shuttle to be stuck to the clamping groove surface on the needle plate. When the shuttle point of the rotating shuttle hooks the upper thread and the action of winding the rotating shuttle for one circle is required to be completed, the upper thread passes through the position between the clamping surface and the clamping groove surface; if there is no gap between the positioning fastener surface and the slot surface, the upper thread cannot pass through the space, cannot complete the action of winding the rotating shuttle for one circle, and cannot form a stitch. At the moment, the thread separating hook applies a force opposite to the rotating direction of the rotating shuttle to the rotating shuttle, so that the rotating shuttle rotates to a certain degree, a certain gap is generated between the positioning buckle surface of the rotating shuttle and the clamping groove surface of the needle plate, and the upper thread can conveniently pass by.

According to the action process of the rotating shuttle thread separating mechanism of the existing double-needle machine, the thread separating structure of the existing double-needle machine determines that the rotating shuttle needs to rotate for two circles to separate threads twice, but only one thread separating is effective, the thread separating hook can collide with the rotating shuttle in the thread separating process, and the redundant one thread separating action of the existing rotating shuttle mechanism can cause more noise and mechanism abrasion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems and provides a rotating shuttle separating mechanism.

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

a rotating shuttle thread separating mechanism comprises a shuttle frame, wherein a rotating shuttle mechanism is arranged on the shuttle frame; the shuttle frame is provided with a thread separating mechanism matched with the rotating shuttle mechanism; the branching mechanism is connected with a driving device; the driving device drives the wire separating mechanism to perform wire separating action.

Preferably, the wire separating mechanism comprises a wire separating rod frame and a wire separating hook, and the wire separating hook is fixedly connected to the wire separating rod frame; the driving device comprises a driving source and a driving shaft, one end of the driving shaft is connected with the driving source, and the other end of the driving shaft is connected with the wire distributing rod frame; the driving source drives the driving shaft to rotate, and the driving shaft drives the wire distributing rod frame to do reciprocating motion.

Preferably, the driving device is a stepping motor, and a motor shaft of the stepping motor is fixedly connected with the wire distributing rod frame; the driving source is a rotary air pump, and the driving shaft is a transmission shaft connected with an actuating mechanism of the rotary air pump.

Preferably, the driving source is a stepping motor; the driving device also comprises a first transmission shaft and a first connecting shaft sleeve, one end of the first connecting shaft sleeve is fixedly connected with the first transmission shaft, and the other end of the first connecting shaft sleeve is fixedly connected with a motor shaft of the stepping motor; the first transmission shaft, the first connecting shaft sleeve and the motor shaft are combined to form the driving shaft;

the shuttle frame is provided with an installation channel, the driving shaft is positioned in the installation channel, and the stepping motor is fixedly installed on the shuttle frame.

Preferably, a first shaft sleeve is sleeved on the first transmission shaft; and a second shaft sleeve is sleeved on the motor shaft.

Preferably, the wire separating mechanism further comprises an electronic control module for controlling the driving device.

Preferably, the electronic control module comprises an adjusting module for adjusting the amplitude of the movement of the driving device.

Preferably, the rotating shuttle branching mechanism comprises a branching hook, the branching hook is connected with the driving device, and the adjusting module adjusts the swing amplitude of the branching hook through the driving device.

Preferably, the adjusting module is further provided with an input key for controlling the stepping motor to rotate, the input key comprises a coarse adjustment input key and a fine adjustment input key, and a unit value of a rotation amplitude of the motor shaft corresponding to the coarse adjustment input key is larger than a unit value of a rotation amplitude of the motor shaft corresponding to the fine adjustment input key.

Preferably, the electronic control module is provided with a memory key for inputting and recording the corresponding gap standards.

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

1. the utility model provides a rotating shuttle separating mechanism, which accurately controls the rotation amplitude of the separating mechanism through a stepping motor. The thread separating mechanism can achieve the technical effect of separating threads by rotating the thread separating mechanism each time, reduces the abrasion of the rotating shuttle mechanism compared with the prior art that two times of opening shuttle actions are required to be executed by one time of thread separating action, and has great economic effect. In addition, the noise caused by the redundant action of the rotating shuttle mechanism is effectively avoided, and the substantial contribution is made to further reducing the noise of the sewing machine.

Drawings

Fig. 1 is a first structural schematic diagram of a rotating shuttle separating mechanism.

Fig. 2 is a structural schematic diagram two of the rotating shuttle separating mechanism.

Fig. 3 is an exploded view of the rotating shuttle parting mechanism.

In the figure, 1, a shuttle frame; 2. a rotating shuttle mechanism; 3. a wire separating mechanism; 31. a wire distributing rod frame; 311. a slideway; 312. a first limit rod; 32. a wire dividing hook; 321. a connecting portion; 3211. a strip-shaped through hole; 4. a drive device; 41. a stepping motor; 411. a motor shaft; 4111. a second shaft sleeve; 42. a first drive shaft; 421. a first bushing; 43. the first connecting shaft sleeve.

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.

The first embodiment is as follows:

a rotating shuttle thread separating mechanism comprises a shuttle frame, wherein a rotating shuttle mechanism 2 is arranged on the shuttle frame; the shuttle frame 1 is provided with a thread separating mechanism 3 matched with the rotating shuttle mechanism 2. The wire separating mechanism 3 comprises a wire separating rod frame 31 and a wire separating hook 32, and the wire separating hook 32 is fixedly connected to the wire separating rod frame 31.

The branching mechanism 3 is connected to a drive device 4. The driving device 4 comprises a driving source and a driving shaft, one end of the driving shaft is fixedly connected with the driving source, and the other end of the driving shaft is fixedly connected with the wire distributing rod frame 31; the driving source drives the driving shaft to rotate, and the driving shaft drives the wire separating rod frame 31 to reciprocate. The driving device 4 drives the wire separating mechanism 3 to perform wire separating action. The devices capable of driving the wire separating mechanism 3 to swing in the prior art are all included in the scope of the driving device of the present embodiment.

The driving device of the present embodiment is preferably a stepping motor 41. If the stepping motor 41 with a longer motor shaft 411 is selected, the motor shaft 411 can be directly and fixedly connected with the wire dividing rod frame 31, and then the stepping motor 41 directly drives the wire dividing rod frame 31. Preferably, the driving device 4 of the present embodiment further includes a first transmission shaft 42 and a first connecting shaft sleeve 43, one end of the first connecting shaft sleeve 43 is fixedly connected to the first transmission shaft 42, and the other end of the first connecting shaft sleeve 43 is fixedly connected to the motor shaft 411 of the stepping motor 41; the first transmission shaft 42, the first connecting shaft sleeve 43 and the motor shaft 411 are combined to form a driving shaft;

the shuttle frame 1 is provided with an installation channel, the first transmission shaft 42, the first connecting shaft sleeve 43 and the motor shaft 411 are all positioned in the installation channel, and the stepping motor 41 is fixedly installed on the shuttle frame 1. In order to reduce the influence on the shuttle frame 1 when the first transmission shaft 42 and the motor shaft 411 operate, a first shaft sleeve 421 is sleeved on the first transmission shaft 42; the motor shaft 411 is sleeved with a second shaft sleeve 4111.

The wire separating mechanism 3 further comprises an electric control module for controlling the stepping motor 41. The electronic control module comprises an adjusting module, and the adjusting module is used for adjusting the motion amplitude of the driving device 4, so as to adjust the swing amplitude of the wire separating hook 32 through the driving device 4. The adjusting module is also provided with an input key for controlling the stepping motor to rotate, the input key comprises a coarse adjustment input key and a fine adjustment input key, the unit value of the rotation amplitude of the motor shaft 411 corresponding to the coarse adjustment input key is larger than the unit value of the rotation amplitude of the motor shaft 411 corresponding to the fine adjustment input key, and a user can conveniently and accurately operate the thin and thick branch wires by one key. The electric control module is provided with a memory key for inputting and recording the corresponding gap standards, so that the operation can be performed in time according to different wire separating scenes without manually adjusting the swing amplitude of the wire separating mechanism 3. In the embodiment, the rotating shuttle mechanism 2 is controlled by the stepping motor 41, the parameters of the stepping motor 41 can be modified by the input key of the adjusting module, and the swing amplitude of the thread separating hook 32 is further adjusted, so that the thread separating hook is suitable for threads with different thicknesses, and is quick and convenient to operate.

The wire distributing rod frame 31 is provided with a slide way 311; the wire dividing hook 32 is provided with a connecting part 321, and the connecting part 321 can slide along the slide way 311; the first limiting rod 312 is installed on the slide way 311, the strip-shaped through hole 3211 is formed in the connecting portion 321, and the first limiting rod 312 is located in the strip-shaped through hole 3211, so that the gap between the wire dividing hook 32 and the rotating shuttle mechanism 2 can be adjusted by changing the position of the wire dividing hook 32 on the slide way 311, so as to be suitable for different conditions of wire dividing thickness.

Example two:

the present embodiment is substantially the same as the first embodiment, and the difference is that the driving source of the present embodiment is a rotary air pump, the driving shaft is a transmission shaft connected to an actuating mechanism of the rotary air pump, and the structure of the rotary air pump is the prior art, so the present application is not repeated. The shuttle frame 1 is provided with an arc-shaped through hole, the branching mechanism 3 is positioned in the arc-shaped through hole, the branching rod frame 31 is connected with the transmission shaft, and the rotary air pump drives the branching rod frame 31 to do reciprocating motion along the arc-shaped through hole.

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.

Claims

1. A rotating shuttle thread separating mechanism is characterized by comprising a shuttle frame (1), wherein a rotating shuttle mechanism (2) is arranged on the shuttle frame (1); the shuttle frame (1) is provided with a thread separating mechanism (3) matched with the rotating shuttle mechanism (2); the wire dividing mechanism (3) is connected with a driving device (4); the driving device (4) drives the wire separating mechanism (3) to perform wire separating action.

2. The rotating shuttle thread separating mechanism according to claim 1, characterized in that the thread separating mechanism (3) comprises a thread separating rod frame (31) and a thread separating hook (32), wherein the thread separating hook (32) is fixedly connected on the thread separating rod frame (31); the driving device (4) comprises a driving source and a driving shaft, one end of the driving shaft is connected with the driving source, and the other end of the driving shaft is connected with the wire distributing rod frame (31); the driving source drives the driving shaft to rotate, and the driving shaft drives the wire distributing rod frame (31) to do reciprocating motion.

3. A rotary shuttle thread separating mechanism according to claim 2, wherein the driving means is a stepping motor (41), a motor shaft (411) of the stepping motor (41) is fixedly connected with the thread separating rod frame (31); or the driving source is a rotary air pump, and the driving shaft is a transmission shaft connected with an actuating mechanism of the rotary air pump.

4. A rotary shuttle de-reeling mechanism according to claim 2, wherein the driving source is a stepping motor (41); the driving device (4) further comprises a first transmission shaft (42) and a first connecting shaft sleeve (43), one end of the first connecting shaft sleeve (43) is fixedly connected with the first transmission shaft (42), and the other end of the first connecting shaft sleeve (43) is fixedly connected with a motor shaft (411) of the stepping motor (41); the first transmission shaft (42), the first connecting shaft sleeve (43) and the motor shaft (411) are combined to form the driving shaft;

the shuttle frame (1) is provided with an installation channel, the driving shaft is positioned in the installation channel, and the stepping motor (41) is fixedly installed on the shuttle frame (1).

5. The rotary hook striping mechanism of claim 4, wherein said first drive shaft (42) is sleeved with a first bushing (421); a second shaft sleeve (4111) is sleeved on the motor shaft (411).

6. A rotary shuttle separation mechanism according to any of claims 3 to 5, characterized in that the separation mechanism (3) further comprises an electronic control module controlling the operation of the drive means (4).

7. The rotating shuttle unwinding mechanism according to claim 6, characterized in that said electronic control module comprises an adjustment module for adjusting the amplitude of the movement of the driving device (4).

8. The rotating shuttle thread separating mechanism according to claim 7, characterized in that the rotating shuttle thread separating mechanism comprises a thread separating hook (32), the thread separating hook (32) is connected with the driving device (4), and the adjusting module adjusts the swing amplitude of the thread separating hook (32) through the driving device (4).

9. The rotating shuttle dividing mechanism according to claim 8, wherein the electronic control module further comprises input keys for controlling the rotation of the stepping motor (41), the input keys comprise a coarse adjustment input key and a fine adjustment input key, and the unit value of the rotation amplitude of the motor shaft (411) corresponding to the coarse adjustment input key is larger than the unit value of the rotation amplitude of the motor shaft (411) corresponding to the fine adjustment input key.

10. The rotating shuttle dividing mechanism according to claim 9, wherein the electronic control module is provided with a memory key for inputting and recording the corresponding clearance standards.