CN214613018U

CN214613018U - Thread feeding device for sewing machine

Info

Publication number: CN214613018U
Application number: CN202022980659.1U
Authority: CN
Inventors: 王雪娟
Original assignee: Suzhou Jingshang Jingmei Electronic Technology Co ltd
Current assignee: Suzhou Jingshang Jingmei Electronic Technology Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-11-05
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a sewing machine is with sending traditional thread binding putting relates to clothing manufacture equipment technique, aims at solving current sewing machine and send traditional thread binding putting to block the line easily and send the inhomogeneous problem of line, and its technical scheme main points are: the thread feeding mechanism comprises a sewing machine body, wherein a needle is arranged at one end of the sewing machine body, a thread rack assembly is rotatably connected to the top surface of the sewing machine body, a thread feeding assembly is arranged above the needle on the sewing machine body, the thread feeding mechanism further comprises a driving mechanism for driving the thread feeding assembly, a thread feeding groove communicated with the needle and the thread feeding assembly is formed in the sewing machine body, and a thread guide pipe is arranged between the thread rack assembly and the thread feeding assembly. The utility model discloses a send line subassembly initiative to send the line, have and send the line stable, advantage that work efficiency is high.

Description

Thread feeding device for sewing machine

Technical Field

The utility model relates to a clothing manufacture equipment technique, more specifically say that it relates to a sewing machine is with sending traditional thread binding putting.

Background

In the tailoring trade, when sewing the clothing, need use a large amount of sewing threads, traditional sewing machine adopts send the traditional thread binding putting very simple, only be equipped with the bracing piece for the supporting disk, the sewing thread spindle sleeve is established on the bracing piece. In the in-service use, can lead to the sewing thread spindle to take place shake and displacement when drawing the sewing thread fast, influence and send the line effect, the sewing thread is easily relaxed when drawing the line slower and twines together and can't accomplish and send the line to influence work efficiency.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a sewing machine is with sending traditional thread binding putting has and send the line stable, is difficult to take place the sewing thread winding, advantage that work efficiency is high.

The above technical purpose of the present invention can be achieved by the following technical solutions: a thread feeding device for a sewing machine comprises a sewing machine body, wherein a needle is arranged at one end of the sewing machine body, a thread rack assembly is rotatably connected to the top surface of the sewing machine body, a thread feeding assembly is arranged on the sewing machine body and positioned above the needle, a thread feeding groove communicated with the needle and the thread feeding assembly is formed in the sewing machine body, a thread guide pipe is arranged between the thread rack assembly and the thread feeding assembly, the thread feeding device also comprises a bracket for fixing the thread guide pipe, the thread feeding assembly comprises a thread fixing seat fixedly connected to the sewing machine body and a thread pressing seat arranged on one side of the thread fixing seat, one end of the thread pressing seat is hinged with the thread fixing seat through a hinge shaft, a tension spring is fixedly connected between the other end of the thread pressing seat and the thread fixing seat, and a driving wheel and a driven wheel are respectively rotatably connected between the hinge shaft and the tension spring on the thread fixing seat and the thread pressing seat, the driving wheel contacts with the transmission surface from the driving wheel each other, the helix center that passes the spring on line fixing seat and the line pressing seat is provided with the adjusting part who is used for adjusting the driving wheel and follows the tight power of supporting between the driving wheel, fixedly connected with motor on the line fixing seat, the output shaft and the driving wheel fixed connection of motor.

Through adopting above-mentioned technical scheme, the motor drive action wheel rotates, takes place relative motion from driving wheel and action wheel, and the sewing thread is located the action wheel and follows the contact position of driving wheel to make sewing thread can even stable initiative carry to the eedle, the sewing thread is carried to sending the line subassembly through the conduit by the line frame subassembly simultaneously, and the sewing thread is difficult to take place to twine, makes and send the line stable and orderly, thereby can effectively improve work efficiency.

The utility model discloses further set up to: an annular groove is formed in the annular peripheral wall of the driven wheel, and the driving wheel abuts against the inside of the annular groove.

Through adopting above-mentioned technical scheme, the action wheel is contradicted in seting up the ring channel on the follow driving wheel, can provide higher clamp force, improves the conveying capacity who send the line subassembly.

The utility model discloses further set up to: the periphery wall of action wheel is provided with anti-skidding line.

Through adopting above-mentioned technical scheme, can improve the frictional force between sewing thread and the action wheel, prevent to skid and cause the problem that the sewing thread steps out.

The utility model discloses further set up to: the thread stand component comprises a fixed disc fixedly connected to the sewing machine body and a thread disc rotatably connected to the fixed disc, a self-locking mechanism is arranged between the thread disc and the fixed disc, and one end, far away from the fixed disc, of the thread disc is fixedly connected with a variable-diameter thread column.

By adopting the technical scheme, when the thread feeding assembly stops feeding threads suddenly in the rotating process of the thread frame assembly dragged by the sewing threads, the thread frame assembly cannot continue to rotate due to inertia through the arrangement of the self-locking mechanism, so that winding caused by loosening of the sewing threads is avoided, and the sewing threads between the thread feeding assembly and the thread frame assembly are always in a tight state.

The utility model discloses further set up to: the self-locking mechanism comprises a first tooth surface disc and a second tooth surface disc which are fixedly connected to the fixed disc and the wire coil respectively, and teeth on the first tooth surface disc and teeth on the second tooth surface disc are meshed with each other.

The utility model discloses further set up to: the variable diameter wire column comprises a first half column fixedly connected with the wire coil and a second half column symmetrically arranged with the first half column, a plurality of thrust springs are fixedly connected between the first half column and the second half column, and the end, away from the wire coil, of the first half column and the second half column is provided with a taper.

Through adopting above-mentioned technical scheme, fix the coil of sewing thread on the terminal that first semicolumn and second semicolumn constitute during the use, thrust spring outwards pushes out the second semicolumn and supports tightly on the coil for the coil can not take place relative rotation with the reducing terminal.

The utility model discloses further set up to: the adjusting component is an adjusting pin, one end fixedly connected with of adjusting pin adjusts the coiled hair, the other end fixedly connected with screw tooth post of adjusting pin, the biggest nominal diameter of screw tooth post is greater than the diameter of adjusting pin, thread groove and rotation groove have been seted up respectively on fixed line seat and the line ball seat, the adjusting pin rotates to be connected in rotating the inslot, screw tooth post and thread groove threaded connection.

Through adopting above-mentioned technical scheme, when the sewing thread is thinner, rotate and adjust the coiled hair and make the thread column stretch into to the thread groove for decide the line seat and press the line seat and be close to each other, thereby improve the clamp force of sewing thread, vice versa, the line seat can slide on adjusting pin simultaneously, tension spring's setting can play the cushioning effect.

The utility model discloses further set up to: the conduit is a flexible rubber hose made of transparent materials.

Through adopting above-mentioned technical scheme, be convenient for observe the transport condition of sewing thread.

To sum up, the utility model discloses following beneficial effect has: through adopting above-mentioned technical scheme, the motor drive action wheel rotates, takes place relative motion from driving wheel and action wheel, and the sewing thread is located the action wheel and follows the contact position of driving wheel to make sewing thread can even stable initiative carry to the eedle, the sewing thread is carried to sending the line subassembly through the conduit by the line frame subassembly simultaneously, and the sewing thread is difficult to take place to twine, makes and send the line stable and orderly, thereby can effectively improve work efficiency.

Drawings

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

FIG. 2 is a schematic structural view of the wire feeding assembly of the present invention;

FIG. 3 is a schematic view of the center line frame assembly of the present invention;

fig. 4 is a schematic structural diagram of the adjusting assembly of the present invention.

In the figure: 1. a sewing machine body; 11. a wire feeding groove; 2. a needle; 3. a wire frame assembly; 31. fixing the disc; 32. wire coils; 33. a self-locking mechanism; 34. a first half-column; 35. a second half-column; 36. a thrust spring; 4. a wire feeding assembly; 41. a wire fixing seat; 42. a wire pressing base; 43. hinging a shaft; 44. a tension spring; 45. A driving wheel; 46. a driven wheel; 47. an adjustment assembly; 471. an adjustment pin; 472. adjusting the pan head; 473. A threaded stud; 48. a motor; 5. a conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a thread feeding device for a sewing machine comprises a sewing machine body 1, a needle 2 is arranged at one end of the sewing machine body 1, a thread frame component 3 is rotatably connected to the top surface of the sewing machine body 1, a thread feeding component 4 is arranged on the sewing machine body 1 and positioned above the needle 2, a thread feeding groove 11 communicated with the needle 2 and the thread feeding component 4 is arranged on the sewing machine body 1, a thread guide 5 is arranged between the thread frame component 3 and the thread feeding component 4, the thread feeding component 4 further comprises a bracket for fixing the thread guide 5, the thread feeding component 4 comprises a thread fixing seat 41 fixedly connected to the sewing machine body 1 and a thread pressing seat 42 arranged at one side of the thread fixing seat 41, one end of the thread pressing seat 42 is hinged with the thread fixing seat 41 through a hinge shaft 43, a tension spring 44 is fixedly connected between the other end of the thread pressing seat 42 and the thread fixing seat 41, a driving wheel 45 and a driven wheel 46 are respectively rotatably connected between the hinge shaft 43 and the tension spring 44 on the thread fixing seat 41 and the thread pressing seat 42, the driving surface of action wheel 45 and follow driving wheel 46 contacts each other, the helix center that passes the spring on alignment seat 41 and the line pressing seat 42 is provided with the adjusting part 47 that is used for adjusting between action wheel 45 and the follow driving wheel 46 the tight power of support, fixedly connected with motor 48 on the alignment seat 41, motor 48 is servo motor 48, motor 48's output shaft and action wheel 45 fixed connection, in operation motor 48 drive action wheel 45 rotates, follow driving wheel 46 takes place relative motion with action wheel 45, the sewing thread is located the contact position of action wheel 45 and follow driving wheel 46, thereby make sewing thread can even stable initiative carry to eedle 2, the sewing thread is carried to send line subassembly 4 through guide wire 5 by line frame subassembly 3 simultaneously, the sewing thread is difficult to take place the winding, make and send the line stable and orderly, thereby can effectively improve work efficiency.

An annular groove is formed in the annular peripheral wall of the driven wheel 46, the driving wheel 45 abuts against the annular groove formed in the driven wheel 46, high clamping force can be provided, and the conveying capacity of the wire feeding assembly 4 is improved.

The periphery wall of action wheel 45 is provided with anti-skidding line, can improve the frictional force between sewing thread and the action wheel 45, prevents to skid to cause the problem that the sewing thread steps out.

As shown in fig. 1 and 3, the thread stand assembly 3 includes a fixed disk 31 fixedly connected to the sewing machine body 1 and a thread spool 32 rotatably connected to the fixed disk 31, a self-locking mechanism 33 is provided between the thread spool 32 and the fixed disk 31, one end of the thread spool 32 far from the fixed disk 31 is fixedly connected with a variable diameter thread post, when the thread feeding assembly 4 suddenly stops feeding threads in the rotating process of dragging the thread stand assembly 3 by the sewing threads, the thread stand assembly 3 cannot continue to rotate due to inertia through the setting of the self-locking mechanism 33, so that winding caused by loosening of the sewing threads is avoided, and the sewing threads between the thread feeding assembly 4 and the thread stand assembly 3 are always in a tightened state.

The self-locking mechanism 33 comprises a first toothed disc and a second toothed disc which are fixedly connected to the fixed disc 31 and the wire coil 32 respectively, and teeth on the first toothed disc and teeth on the second toothed disc are meshed with each other.

The reducing thread column comprises a first half column 34 fixedly connected with the thread coil 32 and a second half column 35 symmetrically arranged with the first half column 34, a plurality of thrust springs 36 are fixedly connected between the first half column 34 and the second half column 35, one ends, far away from the thread coil 32, of the first half column 34 and the second half column 35 are provided with tapers, when the reducing thread column is used, a coil of a sewing thread is fixed on the thread column formed by the first half column 34 and the second half column 35, the thrust springs 36 outwards push out the second half column 35 to tightly abut against the coil, and therefore the coil cannot rotate relative to the reducing thread column.

As shown in fig. 4, the adjusting assembly 47 is an adjusting pin 471, one end of the adjusting pin 471 is fixedly connected with an adjusting pan head 472, the other end of the adjusting pin 471 is fixedly connected with a threaded column 473, the maximum nominal diameter of the threaded column 473 is greater than the diameter of the adjusting pin 471, a threaded groove and a rotating groove are respectively formed in the thread setting seat 41 and the thread pressing seat 42, the adjusting pin 471 is rotatably connected in the rotating groove, the threaded column 473 is in threaded connection with the threaded groove, when the sewing thread is thin, the adjusting pan head 472 is rotated to enable the threaded column 473 to extend into the threaded groove, the thread setting seat 41 and the thread pressing seat 42 are close to each other, so as to improve the clamping force of the sewing thread, and vice versa, meanwhile, the thread pressing seat 42 can slide on the adjusting pin 471, and the tension spring 44 can play a role in buffering.

In order to facilitate observation of the conveying condition of the sewing thread, the wire guide 5 is a soft rubber tube made of transparent material.

The working principle is as follows: in the specific use process, a coil of the sewing thread is fixed on the thread stand component 3, an iron hook made of thin iron wire extends into the wire guide pipe 5 to pull out the thread end of the sewing thread on the thread stand component 3 to the upper part of the thread feeding component 4, the motor 48 is started, the driving wheel 45 rotates, the driven wheel 46 and the driving wheel 45 move relatively, the sewing thread is positioned at the contact position of the driving wheel 45 and the driven wheel 46, thereby clamping the sewing thread and uniformly and stably conveying the sewing thread to the needle 2 from the thread feeding groove 11, when the sewing thread is thinner, the adjusting pan head 472 is rotated so that the screw column 473 is inserted into the screw groove, so that the wire fixing seat 41 and the wire pressing seat 42 are close to each other, thereby improve the clamp force of sewing thread, vice versa, the line ball seat 42 can slide on adjusting pin 471 simultaneously, and tension spring 44's setting can play the cushioning effect for send the line stable and orderly, thereby can effectively improve work efficiency.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a sewing machine is with sending traditional thread binding putting, includes sewing machine body (1), the one end of sewing machine body (1) is provided with eedle (2), its characterized in that: the top surface of the sewing machine body (1) is rotatably connected with a thread rack assembly (3), a thread feeding assembly (4) is arranged above a machine needle (2) on the sewing machine body (1), a thread feeding groove (11) communicated with the machine needle (2) and the thread feeding assembly (4) is formed in the sewing machine body (1), a thread guide (5) is arranged between the thread rack assembly (3) and the thread feeding assembly (4), the sewing machine further comprises a bracket for fixing the thread guide (5), the thread feeding assembly (4) comprises a thread fixing seat (41) fixedly connected to the sewing machine body (1) and a thread pressing seat (42) arranged on one side of the thread fixing seat (41), one end of the thread pressing seat (42) is hinged with the thread fixing seat (41) through a hinge shaft (43), and a tension spring (44) is fixedly connected between the other end of the thread pressing seat (42) and the thread fixing seat (41), it is connected with action wheel (45) and follow driving wheel (46) to rotate respectively to lie in between articulated shaft (43) and tension spring (44) on line seat (41) and line ball seat (42), action wheel (45) and the driving surface of following driving wheel (46) contact each other, the helix center that passes the spring on line seat (41) and line ball seat (42) is provided with and is used for adjusting drive wheel (45) and follows adjusting part (47) of supporting tight power between driving wheel (46), fixedly connected with motor (48) on line seat (41), the output shaft and the action wheel (45) fixed connection of motor (48).

2. The thread feeding device for sewing machine according to claim 1, characterized in that: an annular groove is formed in the annular peripheral wall of the driven wheel (46), and the driving wheel (45) is abutted to the annular groove.

3. The thread feeding device for sewing machine according to claim 2, characterized in that: the periphery wall of action wheel (45) is provided with anti-skidding line.

4. The thread feeding device for sewing machine according to claim 1, characterized in that: the thread stand assembly (3) comprises a fixed disc (31) fixedly connected to the sewing machine body (1) and a thread disc (32) rotatably connected to the fixed disc (31), a self-locking mechanism (33) is arranged between the thread disc (32) and the fixed disc (31), and one end of the thread disc (32) far away from the fixed disc (31) is fixedly connected with a variable diameter thread column.

5. The thread feeding device for sewing machine according to claim 4, characterized in that: the self-locking mechanism (33) comprises a first tooth face disc and a second tooth face disc which are respectively and fixedly connected to a fixed disc (31) and a wire coil (32), and teeth on the first tooth face disc and the second tooth face disc are meshed with each other.

6. The thread feeding device for sewing machine according to claim 4, characterized in that: the reducing line post includes first semi-column (34) with drum (32) fixed connection and the second semi-column (35) that sets up with first semi-column (34) symmetry, a plurality of thrust spring (36) of fixedly connected with between first semi-column (34) and second semi-column (35), the one end that drum (32) were kept away from in first semi-column (34) and second semi-column (35) is provided with the tapering.

7. The thread feeding device for sewing machine according to claim 1, characterized in that: the adjusting assembly (47) is an adjusting pin (471), one end of the adjusting pin (471) is fixedly connected with an adjusting pan head (472), the other end of the adjusting pin (471) is fixedly connected with a threaded column (473), the maximum nominal diameter of the threaded column (473) is larger than the diameter of the adjusting pin (471), a thread groove and a rotating groove are respectively formed in the wire fixing seat (41) and the wire pressing seat (42), the adjusting pin (471) is rotatably connected in the rotating groove, and the threaded column (473) is in threaded connection with the thread groove.

8. The thread feeding device for sewing machine according to claim 1, characterized in that: the conduit (5) is a soft rubber tube made of transparent materials.