CN104233654B - Peg or spindle automatic coiling device and method - Google Patents

Abstract

The invention provides an automatic bobbin winding device, which comprises a bottom plate of a sewing machine and a bracket fixed on the front side of the bottom plate. A rotatable bobbin shaft is arranged below the bottom plate, and a shaft portion is arranged on the bobbin shaft. A bobbin is detachably connected to the upper part, and a thread clamping mechanism that can rotate around the bobbin is provided on the front side of the support, and the thread clamping mechanism is used to clamp the bottom thread wound on the bobbin. In the bobbin automatic winding device, the thread clamping mechanism can move around the bobbin in space, that is, the thread clamping mechanism rotates around the bobbin, so that the bottom thread held by the thread clamping mechanism is wound on the winding shaft of the bobbin for N turns Afterwards, the clamping mechanism loosens the clamped bottom thread, and the winding shaft rotates, driving the bobbin fixedly sleeved on the winding shaft to rotate together, thereby completing the automatic winding of the bobbin. The bobbin automatic winding device has a high degree of automation , All the actions are automatically completed in the sewing machine without manual operation, so it saves time and effort, and improves the working efficiency of the sewing machine.

Description

Automatic bobbin winding device and method

technical field

The invention relates to a sewing machine, in particular to a bobbin automatic winding device and method.

Background technique

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, and artificial fibers, and products such as leather, plastics, and paper. Sewing machines are divided into household sewing machines and industrial sewing machines. Among them, industrial sewing machines are mostly general-purpose sewing machines, including lockstitch sewing machines, chain sewing machines, quilting machines, overlock sewing machines and interlock sewing machines.

When the sewing machine is sewing the fabric, the rotary hook and the needle of the sewing machine cooperate with each other to interweave the bottom thread and the upper thread and sew them on the fabric to form stitches. The upper thread is passed through the needle eye of the machine needle, and the machine needle moves up and down; the rotary hook is composed of a bobbin case and a bobbin, the bobbin is accommodated in the bobbin case, and the bottom thread is wound on the winding post of the bobbin. Generally speaking, the upper thread is wound on the bobbin, so the upper thread is longer; while the length of the bobbin thread wound on the bobbin winding post is very limited, so during the uninterrupted working process of the sewing machine, the bobbin winds every once in a while. The bobbin thread on the bobbin will be used up, and the operator needs to frequently wind the bobbin thread on the bobbin bobbin bobbin and replace the empty bobbin, thereby reducing sewing efficiency.

For this reason, the Chinese invention patent application publication specification that the application number is 200580011462.2 discloses a kind of device that is used to replace the bobbin for looping thread on a sewing machine or an embroidery machine. Each bobbin case is installed with a bobbin full of bobbin thread; when changing the bobbin, take out the bobbin case in the sewing machine's bobbin compartment by grasping the bobbin case cover on the bobbin case, and then grab the spare bobbin case and place it Send it into the shuttle chamber of the sewing machine to complete the replacement of the bobbin. But the quantity of the spare bobbin case and bobbin that places in sewing machine is very limited, is generally 6-8, and the bottom thread on all spare bobbins can be all used up after sewing machine works certain hour, still needs operator Stop working, and manually wind the bobbin and place it into the bobbin case, and at the same time, manually pass the thread on the bobbin out of the thread passage on the bobbin case, and finally put the bobbin and bobbin case that are full of bobbin thread into the bobbin case. at the specified position in the sewing machine. The above-mentioned process is time-consuming and laborious, and the degree of automation is low, so the working efficiency of the sewing machine is greatly affected.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a bobbin automatic bobbin winding device that automatically winds the replaced empty bobbin inside the sewing machine.

In order to achieve the above object, the present invention provides a bobbin automatic winding device, which includes a base plate of the sewing machine and a bracket fixed on the front side of the base plate, a rotatable bobbin shaft is provided under the bottom plate, and a bobbin shaft is provided on the bobbin shaft. The shaft part is detachably connected with a bobbin, and the front side of the support is provided with a thread clamping mechanism that can rotate around the bobbin, and the thread clamping mechanism is used to clamp the bottom thread wound on the bobbin.

Preferably, it also includes a rotatable and axially movable back and forth arm, the arm is located at the front side of the bracket, a rotatable swing plate is installed on the rear side of the arm, and the clamping mechanism is fixed on the swing board.

Further, the clamping mechanism includes a clamping electromagnet, a clamping plate and a clamping arm, one end of the clamping plate is hinged to the clamping iron core of the clamping electromagnet, and the middle part of the clamping plate is hinged to the clamping arm , the other end of the clamping plate is opposite to one end of the clamping arm, and the other end of the clamping arm and the clamping electromagnet are fixed on the swing plate; when the clamping electromagnet is powered off, the clamping plate A clamping space is formed between the clamping arm and the clamping arm; when the clamping electromagnet is energized, the clamping space disappears.

Preferably, a retaining ring is fixed on the clamping iron core, and a return spring is arranged between the retaining ring and the clamping electromagnet.

Further, a winding seat is installed on the rear side of the support, and the winding shaft passes through the winding seat, and a winding motor is installed on the winding seat, and the winding motor is connected to the rear end of the winding shaft. connected.

Further, a rotating arm seat is installed on the rear side of the bracket, and the rotating arm seat includes a rotating arm seat body extending forward and backward, and front baffles and rear baffles respectively arranged at the front and rear ends of the rotating arm seat body. A slide plate is arranged between the front baffle plate and the rear baffle plate, and a driving motor is installed on the rotating arm seat, and the driving motor is connected with the slide plate through a transmission mechanism, and the transmission mechanism is used to convert the rotation of the driving motor into The front and back axial movement of the skateboard; it also includes a rotating arm shaft pierced through the sliding board and the front baffle, the rear end of the rotating arm shaft is connected with a rotating motor fixed on the sliding board, and the front end of the rotating arm shaft is fixed on the in the arm.

Preferably, the transmission mechanism includes a lead screw and a lead screw nut that cooperate with each other, the lead screw nut is installed in the slide plate, the rear end of the lead screw is fixedly connected with the drive motor, and the front end of the lead screw is passed through the In the front fender of the pivot arm seat.

Preferably, two guide shafts distributed up and down and extending forward and backward are pierced through the slide plate, and the front and rear ends of the guide shafts are respectively fixed in the front baffle and the rear baffle.

Further, a secant knife seat is installed on the front side of the support, and a secant knife is provided on the secant knife seat, and a thread clamping gap is provided between the secant knife and the secant knife seat. The lower end of the wire cutter is provided with a blade inclined forward and downward.

Preferably, it also includes a thread gripper bracket, a thread gripper is arranged on the thread gripper bracket, and the bobbin thread on the wire barrel passes through the thread gripper.

As mentioned above, the bobbin automatic winding device related to the present invention has the following beneficial effects:

In the bobbin automatic winding device, the thread clamping mechanism can move around the bobbin in space, that is, the thread clamping mechanism rotates around the bobbin, so that the bottom thread held by the thread clamping mechanism is wound on the winding shaft of the bobbin for N turns Afterwards, the clamping mechanism loosens the clamped bottom thread, and the winding shaft rotates, driving the bobbin fixed on the winding shaft to rotate together, thereby completing the automatic winding of the bobbin. The bobbin automatic winding device has a high degree of automation , All the actions are automatically completed in the sewing machine without manual operation, so it saves time and effort, and improves the working efficiency of the sewing machine.

Another object of the present invention is to provide a bobbin automatic winding method for automatically winding a replaced empty bobbin inside the sewing machine.

In order to achieve the above object, the present invention provides a bobbin automatic winding method, comprising the bobbin automatic winding device as described above, the bobbin automatic winding method sequentially includes the following steps:

A. Put the bobbin on the shaft of the winding shaft;

B. The clamping mechanism clamps the bobbin thread wound on the bobbin;

C. The clamping mechanism rotates N circles around the bobbin, and winds the bottom thread on the winding post of the bobbin N circles;

D. The clamping mechanism releases the bottom thread;

E. The winding shaft rotates to drive the bobbin to rotate together until the winding post of the bobbin is fully wound with the bobbin thread.

As mentioned above, the bobbin automatic winding method related to the present invention has the following beneficial effects:

The bobbin automatic winding method can automatically wind the bobbin, which has a high degree of automation, and all actions are automatically completed in the sewing machine without manual operation, so time and effort are saved, and the working efficiency of the sewing machine is improved.

Description of drawings

Fig. 1 and Fig. 2 are structural representations of different angles of the present invention.

Fig. 3 is a structural schematic diagram of the intermediate arm and the swing plate of the present invention.

Fig. 4 is a schematic diagram of the connection between the intermediate arm and the slide plate in the present invention.

Fig. 5 is a sectional view taken along line A-A of Fig. 4 .

Fig. 6 is a working state diagram of the present invention.

Fig. 7 is a schematic structural view of the winding shaft in the present invention.

Fig. 8 is a schematic structural view of the pivoting arm seat in the present invention.

Fig. 9 is a schematic diagram of the structure of the secant knife seat and the secant knife in the present invention.

Component designation description

1 bottom plate

2 brackets

3 bobbins

301 shaft

302 convex ring

303 slot

4 clamps

5 clamp bracket

6 arms

7 swing motor

8 swing board

9 clamp arm

10 plywood

101 positioning slot

11 clamping electromagnet

12 clamping iron core

13 pin

14 arm shaft

15 bobbins

16 winding seat

17 winding motor

18 swivel arm seat

181 arm base body

182 front baffle

183 tailgate

19 drive motor

20 guide shaft

21 skateboard

22 Turn the motor

23 return spring

24 lead screw nut

25 driving gear

26 driven gear

27 secant knife seat

28 secant knife

281 blades

29 bottom line

30 positioning axis

31 screw

32 clamping space

33 retaining ring

34 clamping gap

detailed description

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

The definition of each direction among the present invention is as follows: the length direction of sewing machine base plate 1 is the front and rear direction; The width direction of sewing machine base plate 1 is the left-right direction, and the thickness direction of sewing machine base plate 1 is the up-down direction; The X direction is the front direction, the U direction is the rear direction, the T direction is the left direction, the Y direction is the right direction, the Z direction is the upward direction, and the W direction is the downward direction.

As shown in Figures 1 to 3, the present invention provides a bobbin automatic bobbin winding device, comprising a base plate 1 of a sewing machine and a bracket 2 fixed on the front side of the base plate 1, a rotatable bobbin winding shaft is arranged below the base plate 1 3. The winding shaft 3 is provided with a shaft part 301, the shaft part 301 is covered with the bobbin 15, and the shaft part 301 and the bobbin core 15 are in tight fit, so as to realize the detachable connection between the shaft part 301 and the bobbin core 15 ; The front side of the bracket 2 is provided with a clamping mechanism that can rotate around the bobbin 15, and the clamping mechanism is used to clamp the bottom thread 29 wound on the bobbin.

The present invention also provides an automatic bobbin winding method, which includes the above-mentioned automatic bobbin winding device, and the automatic bobbin winding method includes the following steps in sequence:

A, the bobbin core 15 is enclosed within on the shaft portion 301 of the bobbin shaft 3;

B. The clamping mechanism clamps the bottom thread 29 wound on the bobbin;

C, the clamping mechanism rotates N circles around the bobbin core 15, and wraps the bottom thread 29 on the winding post of the bobbin core 15 for N circles;

D. The clamping mechanism releases the bottom thread 29;

E, the winding shaft 3 rotates, and drives the bobbin 15 to rotate together, until the winding post of the bobbin 15 is fully wound with the bobbin thread 29 .

Preferably, as shown in FIG. 7 , a protruding ring 302 is provided on the rear side of the shaft portion 301 for restricting the backward movement of the bobbin 15 ; a through slot 303 is provided radially on the winding shaft 3 , the The front end of the through groove 303 extends forward to the front end of the bobbin 3, and the rear end of the through groove 303 extends backward at least to the rear end of the shaft portion 301. The through groove 303 makes the front end of the bobbin 3 consist of two halves shaft, and there is a space for relative movement between the two semi-shafts, so when the bobbin 15 is set on the bobbin 3, it has elasticity, so as to facilitate the loading of the bobbin 15, and when the bobbin 15 is set on the bobbin 3 After the shaft portion 301 is mounted, the tension between the bobbin 15 and the shaft portion 301 can be increased to ensure the reliability of the connection between the bobbin 15 and the shaft portion 301 . The structure of the bobbin 15 belongs to the prior art. Generally speaking, the bobbin 15 includes a bobbin post and flanges arranged at both ends of the bobbin post, and the bobbin post is used for winding the bottom thread 29 .

In the present invention, the thread clamping mechanism can move around the bobbin 15 in space. Since the internal space of the sewing machine is very limited, in order to make the structure of the device more compact, preferably, as shown in Figures 1 to 3, it also includes a The rotating arm 6 that can rotate and move axially forward and backward, the rotating arm 6 is located on the front side of the bracket 2, a rotatable swinging plate 8 is installed on the rear side of the rotating arm 6, and the thread clamping mechanism is fixed on the swinging plate 8 superior. The rotating arm 6 can drive the swinging plate 8 and the thread clamping mechanism to rotate together; the rotating arm 6 can move axially forward and backward, and can drive the swinging plate 8 and the thread clamping mechanism to move axially forward and backward together; meanwhile, the swinging plate 8 and the thread clamping mechanism can Rotate relative to the rotating arm 6, so the rotation of the rotating arm 6, the front and rear axial movement of the rotating arm 6, and the rotation of the swing plate 8 can realize the rotation of the thread clamping mechanism around the bobbin core 15. In this embodiment, a swing motor 7 is installed on the swing arm 6 , the output shaft of the swing motor 7 is fixedly connected with the swing plate 8 , so as to drive the swing plate 8 to rotate around the swing arm 6 .

Of course, the following structure can also be adopted to realize the space movement of the thread clamping mechanism around the bobbin core 15: the rotating arm 6 can only rotate, and the rotating arm 6 is equipped with a swing motor 7 that can move axially forward and backward and a position on the rotating arm 6. The swing plate 8 on the rear side, the output shaft of the swing motor 7 is fixed in the swing plate 8 to drive the swing plate 8 to rotate, and the thread clamping mechanism is fixed on the swing plate 8 . Therefore, rotating arm 6 rotates, and can drive swing motor 7, swing plate 8 and thread clamp mechanism to rotate together; Swing motor 7 rotates, can drive swing plate 8 and thread clamp mechanism to rotate together; The swing plate 8 and the thread tension mechanism move axially forward and backward together; so the thread tension mechanism rotates around the bobbin core 15 through the rotation of the rotating arm 6, the front and rear axial movement of the swing motor 7, and the rotation of the swing motor 7.

In the initial state, the bobbin 15 set on the shaft portion 301 of the bobbin 3 is an empty bobbin with all the bottom threads used up; 6. The front and rear axial movement and the rotation of the swing plate 8 are combined to make the thread clamping mechanism fixed on the swing plate 8 move in space, that is, the thread clamping mechanism clamps the bobbin thread 29 on the bobbin and moves to one side of the bobbin 15. side, and rotate N circles around the bobbin 15, so that the bottom thread 29 is wound on the winding post of the bobbin 15 for N turns; then the bobbin 3 rotates, because the shaft portion 301 on the bobbin 3 is tightly connected to the bobbin 15 Cooperate, so the winding shaft 3 drives the bobbin 15 to rotate together, and completes the winding work. Therefore, the automatic bobbin winding device of the present invention can automatically complete the winding action of the empty bobbin in the sewing machine, which has a very high degree of automation and does not require manual operation, so it saves time and effort and improves the working efficiency of the sewing machine.

Further, as shown in Figures 1 to 3, the clamping mechanism includes a clamping electromagnet 11, a clamping plate 10 and a clamping arm 9, and one end of the clamping plate 10 is connected to the clamping wire of the clamping electromagnet 11. The iron core 12 is hinged by a pin shaft 13, the middle part of the clamping plate 10 is hinged with the clamping arm 9, and the hinge is the swing fulcrum of the clamping plate 10, and the other end of the clamping plate 10 is opposite to one end of the clamping arm 9 Set, the other end of the clamping arm 9 and the clamping electromagnet 11 are all fixed on the swing plate 8; when the clamping electromagnet 11 is powered off, a gap is formed between the clamping plate 10 and the clamping arm 9 The clamping space 32, the bottom thread 29 is clamped in the clamping space 32 by the clamping mechanism; when the clamping electromagnet 11 is energized, the clamping iron core 12 drives one end of the clamping plate 10 to approach the clamping electromagnet 11, so that the other end of the clamping plate 10 moves in a direction close to the clamping arm 9 and abuts against the end of the clamping arm 9, the clamping space 32 disappears, so the clamping plate 10 and the clamping arm 9 The arm 9 tightly clamps the lower thread 29 located in the thread clamping space 32 . In addition, a retaining ring 33 is fixed on the clamping iron core 12, and a return spring 23 is arranged between the retaining ring 33 and the clamping electromagnet 11; when the clamping electromagnet 11 is energized, the return spring 23 is compression; when the clamping electromagnet 11 was powered off, the clamping iron core 12 of the clamping electromagnet 11 reset under the action of the elastic force of the return spring 23 . Of course, other mechanisms can be selected for the wire clamping electromagnet 11, such as cylinders, motor transmission mechanisms and the like.

Preferably, as shown in FIG. 3 , the end of the clamping arm 9 is provided with a positioning shaft 30 extending in a direction close to the clamping plate 10 , and the end of the clamping plate 10 is provided with a positioning shaft 30 opposite to the positioning shaft 30 . The provided positioning groove 101, when the tension electromagnet 11 is energized, the end of the tension plate 10 abuts against the end of the tension arm 9, and the positioning shaft 30 is located in the positioning groove 101, so as to ensure that the tension plate 10 the stability and accuracy of the movement, and then ensure the clamping force of the thread clamping mechanism to the bottom line 29.

Further, the rotatable specific structure of the winding shaft 3 is as follows: as shown in Figure 2 and Figure 4, a winding seat 16 is installed on the rear side of the support 2, and the winding shaft 3 is passed through the winding seat 16 Among them, a winding motor 17 is installed on the winding seat 16, and the winding motor 17 is connected to the rear end of the winding shaft 3; the winding motor 17 rotates, thereby driving the winding shaft 3 and the shuttle on the shaft portion 301 The core 15 rotates together.

Further, the specific structure that the rotating arm 6 can be rotated and can also move axially forward and backward is as follows: as shown in Figure 2, Figure 4 and Figure 8, a rotating arm seat 18 is installed on the rear side of the support 2, and the rotating arm seat 18 includes a pivot arm base body 181 extending forward and backward, and a front baffle 182 and a rear baffle 183 respectively arranged at the front and rear ends of the pivot arm base body 181. A slide plate 21 is arranged between the front baffle 182 and the rear baffle 183. , a driving motor 19 is installed on the arm base 18, the driving motor 19 is connected with the slide plate 21 through a transmission mechanism, and the transmission mechanism is used to convert the rotation of the driving motor 19 into the front and rear axial movement of the slide plate 21 ; Also include a pivot arm shaft 14 that is passed through the slide plate 21 and the front baffle plate 182, the rear end of the pivot arm shaft 14 is connected with a rotating motor 22 fixed on the slide plate 21, and the front end of the pivot arm shaft 14 is fixed In the boom 6. In this embodiment, the rotating motor 22 is connected to the arm shaft 14 through a gear mechanism, and the gear mechanism includes a driving gear 25 and a driven gear 26 that mesh with each other, and the driving gear 25 is fixed on the output of the rotating motor 22 On the shaft, the driven gear 26 is fixed on the pivot arm shaft 14 . When the drive motor 19 rotates, the transmission mechanism drives the slide plate 21 to move axially forward and backward, and the slide plate 21 drives the pivot arm 6 to move axially forward and backward through the pivot arm shaft 14; And then drive the pivoting arm 6 to rotate together.

Preferably, as shown in Fig. 4 and Fig. 5, the transmission mechanism includes a lead screw 31 and a lead screw nut 24 that cooperate with each other, the lead screw nut 24 is installed in the slide plate 21, and the rear end of the lead screw 31 is connected to the Drive motor 19 is fixedly connected, and the front end of leading screw 31 is worn in the front baffle plate 182 of described rotating arm seat 18, and driving motor 19 drives leading screw 31 to rotate together, and the mutual cooperation by leading screw 31 and leading screw nut 24 can Realize that the lead screw nut 24 moves forward and backward axially along the lead screw 31, and then drives the slide plate 21 to move forward and backward axially together; 14 drives pivoted arm 6 to move backward together; When drive motor 19 counter-rotates, when lead screw nut 24 moves forward together with slide plate 21, drives pivoted arm 6 to move forward together by pivoted arm shaft 14. Preferably, the slide plate 21 is pierced with two guide shafts 20 distributed up and down and extending forward and backward. The stability of slide plate 21 axial movement forward and backward.

Further, as shown in Figure 9, a secant knife seat 27 is installed on the front side of the support 2, and a secant knife seat 27 is provided with a line secant knife 28, and the line secant knife 28 and the line secant knife seat 27 is provided with a clamping gap 34, and the lower end of the secant knife 28 is provided with a blade 281 inclined forward and downward. After the winding shaft 3 drives the bobbin 15 to rotate so that the winding post of the bobbin 15 is filled with the bobbin thread 29, the thread clamping mechanism moves to clamp the bobbin thread 29 in the thread clamping gap 34, and then the thread clamping mechanism drives The bottom thread 29 moves to the lower end of the thread cutter 28, and the bottom thread 29 is cut off by the blade 281 of the thread cutter 28.

Preferably, as shown in FIG. 1 , it also includes a thread clamp bracket 5 located outside the sewing machine, a thread clamp 4 is arranged on the thread clamp bracket 5 , and the bottom thread 29 on the wire drum is drawn from the thread clamp 4 During the winding process, the bottom thread 29 on the bobbin spool passes through the thread gripper 4 and then is wound on the winding post of the bobbin 15, and the thread gripper 4 provides a certain thread tension for the bottom thread 29, Simultaneously also guarantee that the bottom line 29 will not be knotted or wound around.

The working principle of the bobbin automatic winding device involved in the present invention is as follows:

1. Before starting winding, as shown in Figure 1, the bottom thread 29 on the bobbin passes through the thread clamp 4 and is clamped in the thread clamping gap 34 formed by the secant knife seat 27 and the secant knife 28, Simultaneously, the shaft portion 301 of the bobbin 3 is covered with a bobbin 15 that the bobbin thread has run out of;

2. Drive motor 19, rotating motor 22 and swing motor 7 rotate together, thereby rotating arm 6 and swing plate 8, pivoting arm 6 and swing plate 8 move axially forward and backward, and swing plate 8 rotates around swing arm 6, through The combination of the above three movements makes the thread clamping mechanism fixed on the swing plate 8 move in space, that is, the thread clamping mechanism drives the thread clamping arm 9 to move to one side of the secant knife seat 27, and the bottom thread 29 is positioned at the side of the thread clamping mechanism. In the clamping space 32;

3. The thread clamping electromagnet 11 is energized to attract the thread clamping iron core 12, and the thread clamping iron core 12 drives the thread clamping plate 10 to swing, so that the thread end of the bottom thread 29 is fixedly clamped between the thread clamping plate 10 and the thread clamping arm 9 ;

4. The thread clamping mechanism continues to move in space, so that the thread clamping arm 9 and the bottom thread 29 move to the side of the bobbin 15, as shown in Figure 6;

5. The thread clamping mechanism clamps the bottom thread 29 and rotates around the bobbin 15, so that the bottom thread 29 is wound on the winding post of the bobbin 15 for N turns;

6. When the thread clamping electromagnet 11 is powered off, the thread clamping iron core 12 drives the thread clamping plate 10 to reset under the action of the return spring 23, the thread clamping plate 10 opens, and the thread clamping mechanism releases the clamped bottom thread 29;

7. The winding motor 17 rotates to drive the winding shaft 3 to rotate, and the winding shaft 3 drives the bobbin 15 enclosed on its shaft portion 301 to rotate together to start winding;

8. After the winding post of the bobbin 15 is fully wound with the bottom thread 29, the winding motor 17 stops rotating, and at the same time, the clamping electromagnet 11 is energized to hold the bottom thread 29;

9. The clamping mechanism moves in space and moves to the edge of the secant knife holder 27 with the clamping arm 9 and the bottom thread 29, so that the bottom thread 29 is clamped in the clamping gap 34, and the clamping mechanism drives the bottom thread again 29 moves to the blade 281 at the lower end of the secant knife 28, and then cuts off the bottom thread 29; so far, a winding work is completed, and the bottom thread 29 is clamped in the thread clamping gap 34 at the same time, and the thread clamping mechanism starts when the next winding work starts Can find and clamp the thread end of bottom line 29 conveniently.

To sum up, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (10)

1. a peg or spindle automatic coiling device, comprise the base plate (1) of Sewing machines and be fixed on the support (2) of base plate (1) front side, it is characterized in that: the below of described base plate (1) is provided with a rotating roll (3), described roll (3) is provided with an axle portion (301), this axle portion (301) is removably connected with a peg or spindle (15), the front side of described support (2) is provided with a thread clamping mechanism that can rotate around peg or spindle (15), and this thread clamping mechanism is for clamping the bottom line (29) be wound around on online cylinder; Also comprise one rotatable and can before and after the pivoted arm (6) that moves axially, this pivoted arm (6) is positioned at the front side of support (2), the rear side of described pivoted arm (6) is provided with a rotating oscillating deck (8), and described thread clamping mechanism is fixed on oscillating deck (8).

2. peg or spindle automatic coiling device according to claim 1, it is characterized in that: described thread clamping mechanism comprises clamp electromagnet (11), clamp (10) and clamp arm (9), the clamp iron core (12) of described clamp (10) one end and clamp electromagnet (11) is hinged, middle part and the clamp arm (9) of clamp (10) are hinged, the other end of clamp (10) and one end of clamp arm (9) are oppositely arranged, and the other end of clamp arm (9) and clamp electromagnet (11) are all fixed on described oscillating deck (8); When clamp electromagnet (11) power-off, between described clamp (10) and clamp arm (9), form a clamp space (32); When clamp electromagnet (11) is energized, described clamp space (32) disappears.

3. peg or spindle automatic coiling device according to claim 2, it is characterized in that: described clamp iron core (12) is fixed with a back-up ring (33), between described back-up ring (33) and clamp electromagnet (11), is provided with a back-moving spring (23).

4. peg or spindle automatic coiling device according to claim 1, it is characterized in that: the trailing flank of described support (2) is provided with a bobbin winder base (16), described roll (3) is located in this bobbin winder base (16), described bobbin winder base (16) is equipped with a coiling electric motor (17), this coiling electric motor (17) is connected with the rear end of roll (3).

5. peg or spindle automatic coiling device according to claim 1, it is characterized in that: the trailing flank of described support (2) is provided with a pivoted arm seat (18), the pivoted arm seat body (181) extended before and after this pivoted arm seat (18) comprises, and be located at front apron (182) and the backboard (183) of pivoted arm seat body (181) rear and front end respectively, a slide plate (21) is provided with between described front apron (182) and backboard (183), described pivoted arm seat (18) is provided with a drive motors (19), described drive motors (19) is connected with slide plate (21) by a transmission mechanism, the front and back that described transmission mechanism is used for the rotation of drive motors (19) to be converted to slide plate (21) move axially, also comprise one and be located in tumbler shaft (14) in slide plate (21) and front apron (182), the rotary electric machine (22) that the rear end and of this tumbler shaft (14) is fixed on slide plate (21) is connected, and the front end of tumbler shaft (14) is fixed in described pivoted arm (6).

6. peg or spindle automatic coiling device according to claim 5, it is characterized in that: described transmission mechanism comprises the leading screw (31) and feed screw nut (24) that cooperatively interact, described feed screw nut (24) is arranged in slide plate (21), the rear end of described leading screw (31) is fixedly connected with drive motors (19), and the front end of leading screw (31) is located in the front apron (182) of described pivoted arm seat (18).

7. peg or spindle automatic coiling device according to claim 5, it is characterized in that: be equipped with about two distributions in described slide plate (21) and the axis of guide (20) of front and back extension, the rear and front end of the described axis of guide (20) is separately fixed in front apron (182) and backboard (183).

8. peg or spindle automatic coiling device according to claim 1, it is characterized in that: the leading flank of described support (2) is provided with a secant tool rest (27), this secant tool rest (27) is provided with a thread cutter (28), be provided with clamp gap (34) between described thread cutter (28) and secant tool rest (27), the lower end of described thread cutter (28) is provided with the blade (281) of forward downward inclination.

9. peg or spindle automatic coiling device according to claim 1, it is characterized in that: also comprise a tension disk support (5), described tension disk support (5) is provided with a tension disk (4), and the bottom line (29) on described line cylinder passes from tension disk (4).

10. a peg or spindle automatic winding method, is characterized in that: comprise the peg or spindle automatic coiling device as described in any one of claim 1-9, and described peg or spindle automatic winding method in turn includes the following steps:

A, peg or spindle (15) is enclosed within the axle portion (301) of roll (3);

B, thread clamping mechanism clamp the bottom line (29) be wound around on online cylinder;

C, thread clamping mechanism rotate N circle around peg or spindle (15), N circle on wrapping post bottom line (29) being wrapped in peg or spindle (15);

D, thread clamping mechanism unclamp bottom line (29);

E, roll (3) rotate, and drive peg or spindle (15) to rotate together, until the wrapping post of peg or spindle (15) is wound around full bottom line (29).