CN219430279U - Top line structure of automatic winding shuttle changing device - Google Patents

Abstract

The utility model discloses a top thread structure of an automatic winding shuttle changing device, which comprises a mounting substrate, a rotatable moving blade synchronizing wheel and a thread clamping blade rotating together with the following blade synchronizing wheel. The mounting substrate is fixedly provided with a top line boss, and the top line boss is provided with a guide inclined plane; the movable knife synchronous wheel is provided with a through hole, and a top line rod capable of axially moving is arranged in the through hole; one end of the top line rod is provided with a spherical body matched with the guide inclined plane; the other end of the top line rod is provided with a top line plane for pushing the bottom line into the second gap. According to the utility model, the driving source drives the movable cutter synchronous wheel to rotate and simultaneously drives the top line rod to rotate along with the movable cutter synchronous wheel, and the top line rod axially moves along with the change of the height of the boss surface of the top line by being matched with the guide inclined plane, so that a forward thrust is applied to the bottom line to push the bottom line into the second gap, and the situation that the bottom line cannot be blocked is avoided.

Description

Top line structure of automatic winding shuttle changing device

Technical Field

The utility model relates to the field of industrial sewing machines, in particular to a top thread structure of an automatic winding shuttle changing device.

Background

An automatic winding bottom-changing shuttle mechanism of patent number 202123068316.9 comprises a mounting substrate, wherein the mounting substrate is provided with a winding threading control device, a wire hooking device, an automatic shuttle changing device and a shuttle core residual wire taking device. The winding and threading control device can wind a wire on the shuttle peg and automatically thread the thread end on the shuttle peg sleeve in place. The thread hooking means may automatically thread the thread end through the first thread guiding hole of the bobbin case. The automatic shuttle changing device takes down the bottom shuttle on the sewing machine and changes the bottom shuttle with the wound thread to the sewing machine. The bobbin core residual thread taking device removes residual thread from the taken bottom shuttle, and is convenient for the next winding. The automatic winding bottom-replacing shuttle mechanism disclosed by the patent has certain defects, for example, when the clamping force between the shuttle shell and the shuttle skin is large, the force of the bottom line clamping into the second gap is insufficient, so that the bottom line cannot be clamped into the second gap, and the problem that the machine needs to be stopped for manual solving is solved, so that the working efficiency of winding is low.

Disclosure of Invention

The utility model provides a top thread structure of an automatic winding shuttle changing device, which aims at the technical problem that a bottom thread cannot be clamped into a second gap along the gap between a bobbin leather and a bobbin case in the bottom thread changing operation of the traditional winding threading control device.

The technical scheme adopted for solving the technical problems is as follows: a top thread structure of an automatic winding shuttle changing device comprises a mounting substrate, a rotatable moving knife synchronous wheel and a thread clamping knife rotating together with the following knife synchronous wheel. The mounting substrate is fixedly provided with a top line boss, and the top line boss is provided with a guide inclined plane; the movable knife synchronous wheel is provided with a through hole, and a top line rod capable of axially moving is arranged in the through hole; one end of the top line rod is provided with a spherical body matched with the guide inclined plane; the other end of the top line rod is provided with a top line plane for pushing the bottom line into the second gap.

In order to optimize the technical scheme, the utility model further comprises the following improved technical scheme.

And one end of the through hole, which is close to the mounting substrate, is provided with a limiting notch, the spring is sleeved on the top wire rod, one end of the spring is matched with the inner end surface of the limiting notch, and the other end of the spring is matched with the root of the spherical body.

The front end face of the movable cutter synchronizing wheel is fixedly provided with a card, the middle of the top line rod is provided with a second limit clamping groove, and one end of the card is clamped in the second limit clamping groove.

A winding guide arc edge is arranged on one side of the wire clamping knife, and a tangential positioning hole is arranged on the outer end side of the winding guide arc edge; the middle part system of wire winding direction arc limit has the first spacing draw-in groove that is used for holding the bottom line.

Compared with the prior art, the top line structure of the automatic winding shuttle changing device drives the movable cutter synchronous wheel to rotate by the driving source, and meanwhile drives the top line rod to rotate along with the movable cutter synchronous wheel, and through the cooperation of the driving source and the guide inclined plane, the top line rod axially moves along with the change of the height of the top line boss surface, and the bottom line is pushed into the second gap by applying forward thrust to the bottom line, so that the situation that the bottom line cannot be blocked in is avoided.

Drawings

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

Fig. 2 is a schematic view of another view structure according to an embodiment of the present utility model.

Fig. 3 is a cross-sectional view of an embodiment of the present utility model.

Fig. 4 is an exploded view of fig. 1.

Fig. 5 is a schematic view of the wire clamping knife in fig. 4.

Fig. 6 is a schematic diagram of the structure at a in fig. 5.

Description of the embodiments

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 6 are schematic structural views of the present utility model.

Wherein the reference numerals are as follows: the thread cutting device comprises a movable cutter synchronous wheel 1, a mounting part 2, a thread clamping cutter 3, a winding guide arc edge 4, a first limiting clamping groove 5, a tangential positioning hole 6, a bobbin cover 7, a thread jacking boss 8, a guide inclined plane 9, a thread jacking rod 10, a through hole 11, a spherical body 12, a limiting notch 13, a spring 14, a second limiting clamping groove 15, a clamping piece 17, a bobbin case 18, a first gap 19, a second gap 20 and a thread jacking plane 21.

The utility model relates to a top line structure of an automatic winding shuttle changing device, which comprises a mounting substrate, wherein a movable cutter synchronous wheel 1 capable of rotating is arranged on the mounting substrate, and a driving source for driving the movable cutter synchronous wheel 1 to rotate is also arranged on the mounting substrate. The movable blade synchronizing wheel 1 is provided with a mounting portion 2 on its circumferential surface. The wire clamping knife 3 is fixedly arranged on the mounting part 2, the wire clamping knife 3 is in the shape of an arc plate, and the radian of the arc plate is consistent with that of the mounting part 2 fixed by the arc plate. The driving source drives the movable cutter synchronous wheel 1 to rotate to drive the wire clamping cutter 3 to rotate so as to drive the bottom wire to move, and the bottom wire is clamped into the first gap 19.

The bobbin case 18 has a first gap 19 formed in the circumferential surface thereof, and is provided with a bobbin case 7 for adjusting the tightness of the bobbin thread, and the bobbin case 7 and the surface of the bobbin case 18 form a second gap 20. After the bobbin case 18 is fitted over the bobbin, the bobbin thread needs to be caught in the first gap 19 of the bobbin case 18 and slid to the end along the second gap 20.

A winding guide arc edge 4 is arranged on one side of the wire clamping knife 3, and a tangential positioning hole 6 is arranged on the outer end side of the winding guide arc edge 4. The winding guide arc edge 4 is used for guiding the bottom wire to slide into the tangential positioning hole 6 along the arc edge so as to facilitate the bottom wire to be clamped into the second gap 20.

A top line boss 8 is fixedly arranged on the mounting substrate, a guide inclined plane 9 with a certain radian is arranged on the top line boss 8, the radian is consistent with that of the movable cutter synchronous wheel 1, and the height of the guide inclined plane 9 is gradually increased. The movable knife synchronizing wheel 1 is provided with a through hole 11 penetrating through the front end face and the rear end face, and a top wire rod 10 capable of moving forwards and backwards is arranged in the through hole 11. One end of the top line rod 10 is provided with a top line plane 21 for top line, and the other end of the top line rod 10 is provided with a spherical body 12 matched with the guiding inclined plane 9. When the moving knife synchronous wheel 1 rotates, the top line rod 10 is driven to rotate along with the moving knife synchronous wheel 1, the top line rod 10 moves forwards along with the height of the surface of the top line boss 8 through the cooperation of the spherical body 12 and the guide inclined plane 9, a force is applied to the bottom line to push the bottom line into the second gap 20, and then the bottom line slides into the tangential positioning hole 6 along the winding guide arc edge 4.

The middle part system of wire winding direction arc limit 4 has first spacing draw-in groove 5, with the bottom ply-yarn drill in first spacing draw-in groove 5, plays the locate function to the bottom line to the top line pole 10 can aim at the bottom line and push into the second clearance 20 with the bottom line in.

A limit notch 13 is formed in the through hole 11 of the rear end face of the movable cutter synchronizing wheel 1, a spring 14 is located in the limit notch 13 and sleeved on the top wire rod 10, the spring 14 applies a backward pulling force to the top wire rod 10, the reset function is guaranteed after the movable cutter synchronizing wheel is used, and the top wire rod 10 returns to the original position.

The middle part of the top line rod 10 is provided with a second limiting clamping groove 15, a card 17 is fixedly arranged on the front end surface of the movable knife synchronous wheel 1, and one end of the card 17 is clamped in the second limiting clamping groove 15. When the wire pushing rod 10 moves to be separated from the guide inclined plane 9, the spring force of the spring 14 can enable the wire pushing rod 10 to move backwards, and the front end of the left side face of the card 17 is matched with the inner wall of the second limiting clamping groove 15 to limit the wire pushing rod 10. The spherical body 12 of the top wire rod 10 can be prevented from contacting with the mounting base, and friction can be generated between the top wire rod 10 and the mounting base when the movable cutter synchronous wheel 1 drives the top wire rod 10 to rotate, so that the spherical body 12 of the top wire rod 10 is worn.

The automatic winding shuttle changing device winds the bobbin thread on the shuttle core, then the shuttle shell 18 is sleeved on the shuttle core, and the bobbin thread on the shuttle core is straightened between the inlet wire pipes. The driving source drives the wire clamping cutter 3 to rotate through the moving cutter synchronous wheel 1, and the straightened bottom wire is clamped in the first limiting clamping groove 5, so that the bottom wire is clamped in the first gap 19. When the movable cutter synchronous wheel 1 rotates, the top line rod 10 is driven to move, the top line rod 10 moves forwards along with the height of the surface of the top line boss 8 through the cooperation of the spherical body 12 and the guide inclined plane 9, a force is applied to the bottom line to push the bottom line into the second gap 20, and the bottom line is pushed out of the first limiting clamping groove 5. Then the bottom line slides into the tangential positioning hole 6 along the winding guide arc edge 4, and the bottom line at the tangential positioning hole 6 is contacted with the stationary knife to cut off the bottom line.

The preferred embodiments of this utility model have been described so far that various changes or modifications may be made by one of ordinary skill in the art without departing from the scope of this utility model.

Claims (4)

1. The utility model provides an automatic winding trades top line structure of shuttle device, includes mounting substrate, rotatable movable cutter synchronizing wheel (1), follower cutter synchronizing wheel (1) pivoted card line sword (3), characterized by together: the mounting substrate is fixedly provided with a top line boss (8), and a guide inclined plane (9) is arranged on the top line boss (8); the movable cutter synchronous wheel (1) is provided with a through hole (11), and a top wire rod (10) capable of axially moving is arranged in the through hole (11); one end of the top wire rod (10) is provided with a spherical body (12) matched with the guide inclined plane (9); the other end of the top wire rod (10) is provided with a top wire plane (21) for pushing the bottom wire into the second gap (20).

2. The roof line structure according to claim 1, wherein: a limit notch (13) is formed in one end, close to the mounting substrate, of the through hole (11), a spring (14) is sleeved on the top wire rod (10), one end of the spring (14) is matched with the inner end face of the limit notch (13), and the other end of the spring (14) is matched with the root of the spherical body (12).

3. The roof line structure according to claim 1, wherein: the front end face of the movable cutter synchronizing wheel (1) is fixedly provided with a card (17), the middle of the top wire rod (10) is provided with a second limiting clamping groove (15), and one end of the card (17) is clamped in the second limiting clamping groove (15).

4. The roof line structure according to claim 1, wherein: a winding guide arc edge (4) is arranged at one side of the wire clamping knife (3), and a tangential positioning hole (6) is arranged at the outer end side of the winding guide arc edge (4); the middle part of wire winding direction arc limit (4) is equipped with first spacing draw-in groove (5) that are used for holding the bottom line.