CN213232716U

CN213232716U - Line device

Info

Publication number: CN213232716U
Application number: CN202021936828.5U
Authority: CN
Inventors: 徐海苗
Original assignee: Zhuji Light Industry Times Robot Technology Co ltd
Current assignee: Zhuji Light Industry Times Robot Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-05-18
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a thread line device, which comprises an installation base and a plurality of rollers arranged on the installation base, wherein the sewing thread passes through each roller in sequence to form a path of the sewing thread; the adjustable wire clamping assembly comprises a rotating shaft connected with the mounting base, a pair of annular clamping pieces rotatably connected with the rotating shaft, and an adjustable clamping mechanism used for pressing the clamping pieces. The thread passage device is provided with the adjustable thread clamping assembly to clamp the sewing thread so that the sewing thread can be stably conveyed to the shuttle peg, and the clamping force on the sewing thread can be adjusted, so that the proper tensioning degree of the sewing thread is maintained, the sewing thread wound on the shuttle peg is fully compressed, and meanwhile, the electromagnetic thread clamping assembly is arranged to clamp the sewing thread in time and controllably when the winding is completed.

Description

Line device

Technical Field

The utility model relates to a weaving sewing machine accessory technical field especially relates to a thread guide device for supplying line for sewing machine bobbin.

Background

When various common sewing devices run to the bottom thread and use up, the bobbin needs to be replaced, and the manual replacement of the bobbin limits the production efficiency. Therefore, the skilled person has been successful in developing various bobbin thread removing or winding devices to replace the bobbin case (bobbin) manually. The existing bobbin winding equipment drives the bobbin to rotate through a rotary driving mechanism, and a sewing thread is shifted to the bobbin by a thread shifting mechanism, so that the sewing thread is wound on the bobbin. And a thread passage device is arranged on one side of the thread pulling mechanism and used for providing thread for the bobbin winding and maintaining the tension of the sewing thread.

However, the thread passage device in the prior art has single function, lacks a controlled thread clamping stop mechanism, and cannot be controlled to clamp the thread in time when the bobbin is wound, so that a section of loose sewing thread is reserved between the thread passage device and the bobbin, and the thread passage device is not beneficial to the batch continuous winding work of the bobbin. Meanwhile, a thread clamping mechanism capable of adjusting the clamping force is also lacked, and the tensioning degree of the sewing thread is maintained, so that the sewing thread wound on the shuttle peg is difficult to ensure to be not tight enough.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the above-mentioned weak point of the thread way device in the bobbin wire winding among the prior art, provide a thread way device, thread way device sets up adjustable double-layered line subassembly and presss from both sides tight sewing thread and makes it can stably carry to bobbin department to can adjust the clamp force to the sewing thread, thereby maintain the suitable tensioning degree of sewing thread, guarantee that the sewing thread of coiling on the bobbin fully compresses tightly, set up the electromagnetism and press from both sides the tight sewing thread of the timely controlled clamp of line subassembly when the wire winding is accomplished simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a thread line device, which comprises an installation base and a plurality of rollers arranged on the installation base, wherein the sewing thread passes through each roller in sequence to form a path of the sewing thread, and the installation base is provided with an adjustable thread clamping component, an electromagnetic thread clamping component and a tension adjusting component on the path; the adjustable wire clamping assembly comprises a rotating shaft connected with the mounting base, a pair of annular clamping pieces rotatably connected with the rotating shaft, and an adjustable clamping mechanism used for pressing the clamping pieces.

The sewing thread passes through the space between the pair of clamping pieces in the adjustable thread clamping assembly, the adjustable clamping mechanism compresses the clamping pieces tightly, a certain clamping force is applied to the sewing thread, and the clamping force can be adjusted, so that the resistance for extracting the sewing thread in the bobbin winding process is adjusted to be proper, the tensioning degree of the sewing thread is maintained to be proper, the sewing thread cannot be loosened or over-tightened, and the sewing thread can be tightened. The electromagnetic thread clamping assembly can be used for rapidly clamping sewing threads to stop thread supply under the control of an electromagnet.

Preferably, adjustable clamping mechanism includes spring and elasticity adjust knob, the pivot sets up on the installation base, a pair of clamping piece cover locate the pivot, the outer end threaded connection of elasticity adjust knob and pivot, the pivot is located to the spring housing, the spring is located between a slice clamping piece in the outside and the elasticity adjust knob.

The position of the clamping piece on the rotating shaft can be adjusted by rotating the tightness adjusting knob, so that the compression amount of the spring is adjusted, and the elastic force of the clamping piece pressed by the spring is adjusted. The method can conveniently and quickly adjust the magnitude of a certain clamping force applied to the sewing thread.

Preferably, the rotating shaft is sleeved with a limiting ring sleeve and a gasket, the limiting ring sleeve abuts against one end, close to the tightness adjusting knob, of the spring, and the gasket is located between the clamping piece and the mounting base.

The needle bearing obviously reduces the friction between the clamping piece and the rotating shaft when the clamping piece rotates, avoids structural abrasion and prolongs the service life of elements.

Preferably, the rotating shaft is provided with a sliding groove extending along the axial direction of the rotating shaft, the sliding groove is opened at the outer end of the rotating shaft, and a limiting protrusion matched with the sliding groove is arranged on the inner side of the annular structure of the spring limiting sleeve.

The limiting sliding sleeve can slide on the rotating shaft along the sliding groove and supports against one end, far away from the clamping piece, of the spring. The gasket abuts between the clamping piece and the mounting base. The tightness adjusting knob is pressed against the limit ring sleeve in a pushing mode, so that the situation that the tightness adjusting knob passes through a torsion spring when being rotated can be avoided, the structure is more stable, and the tightness adjusting knob is more convenient to adjust.

Preferably, the tension adjusting assembly comprises a wire take-up swing rod and a swing rod driving element, the wire take-up swing rod is rotatably connected with the mounting base, and a wire passing hole is formed in the tail end of the wire take-up swing rod.

The swing rod driving element is a swing rod driving motor, and the winding swing rod is driven to swing through the swing rod driving motor, so that the sewing thread is pulled to flexibly adjust the tension of the sewing thread, and the actions of large-amplitude tearing of the sewing thread such as shuttle core feeding and discharging in the shuttle core winding process are matched.

Preferably, a wire passing sleeve is arranged in the wire passing hole.

Preferably, the electromagnetism presss from both sides the line subassembly and includes blowhead, traveller, electro-magnet and slip clamping piece, the traveller slides and cup joints the traveller, and the electro-magnet setting is at the end of traveller, the slip clamping piece adopts magnetic material, the blowhead sets up in the installation base and towards the electro-magnet direction.

Electromagnet in the electromagnetic thread clamping assembly can be controlled to be opened to adsorb the sliding clamping piece, so that sewing threads can be clamped quickly, and thread supply is stopped when winding is completed. The blowing head is used for blowing air between the electromagnet and the sliding clamping piece, so that the adhesion of sewing threads when the sliding clamping piece is separated from the electromagnet is prevented.

Therefore, the utility model discloses following beneficial effect has: (1) the adjustable thread clamping assembly applies a certain clamping force to the sewing thread and can adjust the clamping force, so that the resistance for extracting the sewing thread in the bobbin winding process is adjusted to be proper, the tensioning degree of the sewing thread is maintained at a proper degree, the sewing thread cannot be loosened or over-tightened, and the sewing thread can be tightened. (2) The electromagnetic thread clamping assembly can be used for rapidly clamping sewing threads to stop thread supply under the control of an electromagnet. (3) The tension adjusting assembly can pull the sewing thread to flexibly adjust the tension of the sewing thread and is matched with the actions of shuttle peg feeding and discharging and the like to tear the sewing thread greatly in the shuttle peg winding process.

Drawings

Fig. 1 is a schematic structural view of a line device of the present invention.

Fig. 2 is an exploded view of an adjustable wire clamping assembly in a line device of the present invention.

In the figure: 1. installing a base; 2. a roller; 301. a rotating shaft; 302. a clip; 303. a spring; 304. an elastic adjusting knob; 305. a needle bearing; 306. a spacing ring sleeve; 307. a chute; 308. a limiting bulge; 309. a gasket; 401. a wire-rewinding swing rod; 402. the swing rod drives the motor; 403. threading the cable sleeve; 501. a blowing head; 502. a traveler; 503. an electromagnet; 504. and a sliding clip.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and fig. 2, the utility model discloses a line device, including installation base 1 and a plurality of gyro wheels 2 installed on installation base 1. The sewing thread passes through each gyro wheel 2 in proper order and constitutes the route of sewing thread, installation base 1 is in be equipped with adjustable thread clamping component, electromagnetism thread clamping component and tension adjusting part on the route. In this embodiment the installation base 1 is vertical, and adjustable wire clamping assembly, electromagnetic wire clamping assembly and tension adjusting assembly are arranged from top to bottom in proper order. The number of the rollers 2 is 3, and the rollers are respectively arranged above the adjustable wire clamping assembly, between the adjustable wire clamping assembly and the electromagnetic wire clamping assembly and below the tension adjusting assembly.

The adjustable wire clamping assembly comprises a rotating shaft 301 connected with the mounting base 1, a pair of annular clamping pieces 302 rotatably connected with the rotating shaft 301, and an adjustable clamping mechanism used for pressing the clamping pieces 302. Adjustable clamping mechanism includes spring 303 and elasticity adjust knob 304, pivot 301 sets up on installation base 1, a pair of clamping piece 302 cover locate pivot 301, the outer end threaded connection of elasticity adjust knob 304 and pivot 301, pivot 301 is located to spring 303 cover, spring 303 is located between a slice clamping piece 302 and the elasticity adjust knob 304 in the outside. The sewing thread passes between a pair of clamping pieces 302 in the adjustable thread clamping assembly, and the adjustable clamping mechanism compresses the clamping pieces 302, so that a certain clamping force is applied to the sewing thread and the clamping force can be adjusted, the resistance for drawing the sewing thread in the bobbin winding process is adjusted to be proper, the tensioning degree of the sewing thread is maintained to be proper, the sewing thread cannot be loosened and cannot be over-tightened, and the sewing thread can be tightly and solidly ensured. The electromagnetic thread clamping assembly can utilize the electromagnet 503 to control and rapidly clamp the sewing thread to stop the thread supply. The position of the tightening adjusting knob 304 on the rotating shaft 301 can be adjusted by rotating the tightening adjusting knob, so as to adjust the compression amount of the spring 303, and further adjust the elastic force of the spring 303 pressing the clamping piece 302. The method can conveniently and quickly adjust the magnitude of a certain clamping force applied to the sewing thread.

The rotating shaft 301 is sleeved with a limit ring sleeve 306 and a gasket 309, the limit ring sleeve 306 abuts against one end of the spring 303 close to the tightness adjusting knob 304, and the gasket 309 is located between the clamping piece 302 and the mounting base 1. The needle bearing 305 significantly reduces the friction between the clip 302 and the rotating shaft 301 during rotation, thereby avoiding structural wear and prolonging the service life of the components. The rotating shaft 301 is sleeved with a limit ring sleeve 306 and a gasket 309, the limit ring sleeve 306 abuts against one end of the spring 303 close to the tightness adjusting knob 304, and the gasket 309 is located between the clamping piece 302 and the mounting base 1. The rotating shaft 301 is provided with a sliding groove 307 extending along the axial direction of the rotating shaft, the sliding groove 307 is opened at the outer end of the rotating shaft 301, and a limiting protrusion 308 matched with the sliding groove 307 is arranged on the inner side of the annular structure of the limiting sleeve of the spring 303.

The limiting sliding sleeve can slide on the rotating shaft 301 along the sliding groove 307 and press one end of the spring 303 far away from the clamping piece 302. The washer 309 is abutted between the clip 302 and the mounting base 1. The tightness adjusting knob 304 is pressed against the limit ring sleeve 306, so that the situation that the tightness adjusting knob 304 passes through the torsion spring 303 when being rotated can be avoided, the structure is more stable, and the adjustment is more convenient.

The tension adjusting assembly comprises a wire take-up swing rod 401 and a swing rod driving element, the wire take-up swing rod 401 is rotatably connected with the mounting base 1, and a wire passing hole is formed in the tail end of the wire take-up swing rod 401. A wire passing sleeve 403 is arranged in the wire passing hole. The swing rod driving element is a swing rod driving motor 402, and the swing rod driving motor 402 drives the take-up swing rod 401 to swing, so that the sewing thread is pulled to flexibly adjust the tension of the sewing thread, and the actions of large-amplitude tearing of the sewing thread such as shuttle peg feeding and discharging in the shuttle peg winding process are matched.

The electromagnetic wire clamping assembly comprises a blowing head 501, a sliding column 502, an electromagnet 503 and a sliding clamping piece 504, the sliding clamping piece 504 is slidably sleeved with the sliding column 502, the electromagnet 503 is arranged at the tail end of the sliding column 502, and the sliding clamping piece 504 is made of a magnetic material. The blowing head is arranged on the mounting base and faces the direction of the electromagnet. The electromagnet 503 in the electromagnetic thread clamping assembly can be controlled to open to adsorb the sliding clamping piece 504, so as to rapidly clamp the sewing thread and stop the thread supply when the winding is completed. The blowing head is used for blowing air between the electromagnet and the sliding clamping piece, so that the adhesion of sewing threads when the sliding clamping piece is separated from the electromagnet is prevented.

Claims

1. A thread guide device comprises an installation base and a plurality of rollers arranged on the installation base, wherein sewing threads sequentially pass through the rollers to form a path of the sewing threads; the adjustable wire clamping assembly comprises a rotating shaft connected with the mounting base, a pair of annular clamping pieces rotatably connected with the rotating shaft, and an adjustable clamping mechanism used for pressing the clamping pieces.

2. The line device according to claim 1, wherein the adjustable clamping mechanism comprises a spring and a slack adjustment knob, the rotating shaft is arranged on the mounting base, the pair of clamping pieces are sleeved on the rotating shaft, the slack adjustment knob is in threaded connection with the outer end of the rotating shaft, the spring is sleeved on the rotating shaft, and the spring is arranged between the clamping piece on the outer side and the slack adjustment knob.

3. A line set according to claim 2, wherein a needle bearing is fitted around an end of the shaft adjacent to the mounting base, and the pair of clips are fitted around an outer side of the needle bearing.

4. The line device of claim 2, wherein the shaft is sleeved with a stop collar and a washer, the stop collar abuts against an end of the spring adjacent to the slack adjustment knob, and the washer is positioned between the clip and the mounting base.

5. A line device according to claim 4, characterized in that the shaft is provided with a sliding groove extending in the axial direction of the shaft, the sliding groove is open at the outer end of the shaft, and the inside of the ring-shaped structure of the spring retainer is provided with a retaining protrusion engaging with the sliding groove.

6. The line device according to claim 1, wherein the tension adjusting assembly comprises a line-receiving swing rod and a swing rod driving element, the line-receiving swing rod is rotatably connected with the mounting base, and a line-passing hole is formed at the tail end of the line-receiving swing rod.

7. A line device according to claim 6, wherein a line cover is provided in the line through hole.

8. The line device according to claim 1, wherein the electromagnetic wire clamping assembly comprises a blowing head, a sliding column, an electromagnet and a sliding clamping piece, the sliding clamping piece is slidably sleeved with the sliding column, the electromagnet is arranged at the tail end of the sliding column, the sliding clamping piece is made of a magnetic material, and the blowing head is arranged on the mounting base and faces the direction of the electromagnet.