CN218436184U

CN218436184U - Threading device for sewing machine

Info

Publication number: CN218436184U
Application number: CN202222196620.XU
Authority: CN
Inventors: 陈正鑫; 汪北老
Original assignee: Yiwu Liyada Garment Co ltd
Current assignee: Licheng Qiaolaohan Home Textile Cotton Products Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-02-03
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a threading device for sewing machine relates to sewing machine technical field, aims at solving the problem that the sewing thread is difficult for passing the pinhole on the sewing needle, and its technical scheme main points are: including organism and connecting rod, the connecting rod bottom is equipped with the presser foot, is equipped with the recess on the presser foot, is equipped with the installation pole on the organism, is equipped with the sewing needle on the installation pole, and sewing needle surface is equipped with the pinhole, and the organism is located installation pole one side and has the threading spare through connecting piece sliding connection, the utility model discloses a sewing needle that upwards slides makes sewing needle and recess alternate segregation, further moves the moving member downwards, and the threading spare, thereby make the pinhole of moving member on with the sewing needle align, promote the threading spare this moment and make the threading spare pass the pinhole, then put into the threading spare with the line in, and loosen the hand, the threading spare can drive the sewing line and pass the pinhole this moment, thereby accomplish the installation to the sewing line, this design not only can convenient and fast install the sewing line on the sewing needle, and easy operation, easily realize.

Description

Threading device for sewing machine

Technical Field

The utility model relates to a sewing machine technical field, more specifically say, it relates to a threading device for sewing machine.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. And derives the artistic forms of hand-pushing embroidery computer embroidery, etc.

The prior sewing machine is used for sewing clothes, generally, sewing threads on sewing needles are required to be correspondingly replaced according to different colors of the clothes, so that the sewn clothes are more attractive, but needle holes on the prior sewing needles are generally arranged on the side surfaces of the sewing needles and are smaller, when the sewing threads are replaced, the needle holes cannot be visually seen, so that the sewing threads cannot rapidly penetrate through the needle holes, the use efficiency of the sewing machine is influenced, when the sewing machine finishes one piece of clothes, the sewing threads between the sewing needles and the clothes need to be cut off through scissors, next piece of clothes can be sewn at the moment, when a plurality of pieces of clothes need to be sewn, the operation is troublesome, the sewing efficiency is influenced, and a new scheme is required to be provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve the above problems and to provide a threading device for a sewing machine, which enables a sewing thread to pass through a needle hole of a sewing needle quickly.

The above technical purpose of the present invention can be achieved by the following technical solutions: the threading device for the sewing machine comprises a machine body and a connecting rod fixedly connected with the machine body, wherein a presser foot is fixedly connected to the bottom end of the connecting rod, a groove is formed in the presser foot, the machine body is located on one side of the connecting rod and is fixedly connected with an installation rod, a sewing needle penetrating through the groove is connected to the installation rod in a sliding mode, a needle hole facilitating a sewing thread to penetrate through is formed in the surface of the sewing needle, and a threading piece is connected to one side of the machine body located on the installation rod in a sliding mode through a connecting piece.

Through adopting the above technical scheme, through setting up connecting piece and threading spare, can be when needing to install the sewing thread, the sewing needle of upwards sliding, sewing needle and recess looks mutual separation this moment, further remove moving member and threading spare downwards, thereby make the pinhole on moving member and the sewing needle align, promote threading spare this moment and make the threading spare pass the pinhole, then put into threading spare with the line in, and loosen the hand, threading spare can drive the sewing thread and pass the pinhole this moment, thereby accomplish the installation to the sewing thread, this design not only can convenient and fast install the sewing thread on the sewing needle, and easy operation, easily realize.

The utility model discloses further set up to: the connecting piece include fixed connection on the organism dead lever and with dead lever sliding connection's slide bar, be equipped with a spout on the dead lever, the slide bar is located and slides in the spout, the slide bar all is located installation pole one side with the dead lever, a slide bar bottom fixedly connected with mounting panel, be equipped with the logical groove that the sewing needle of being convenient for passed on the mounting panel, be equipped with on the mounting panel and lead to the communicating mounting groove of groove, the threading spare sets up in the mounting groove.

Through adopting above-mentioned technical scheme, through setting up dead lever and slide bar, can be when the sewing thread is installed to needs, the downwardly moving slide bar, the slide bar drives the mounting panel downstream this moment, and the sewing needle passes logical groove to make threading spare on the mounting panel align with the pinhole, the use of follow-up threading spare of can being convenient for, and through setting up the mounting panel, can be convenient for install threading spare, and drive threading spare when the mounting panel removes and take place the displacement.

The utility model discloses further set up to: the surface of the fixed rod is provided with a sliding groove communicated with the sliding groove, and the surface of the sliding rod is fixedly connected with a handle which is positioned in the sliding groove to slide.

Through adopting above-mentioned technical scheme, through setting up the handle, can move the slide bar when needs hold the handle and upwards or take place the displacement downwards with the hand to play the effect that drives the slide bar and take place the displacement, and through setting up the sliding tray, can be when moving the handle, the handle is located the sliding tray and slides, plays the gliding effect of the handle of being convenient for.

The utility model discloses further set up to: the sliding rod is provided with a plurality of clamping grooves, and the inner wall of the sliding groove is fixedly connected with a plurality of clamping blocks which can be mutually abutted against the clamping grooves.

Through adopting above-mentioned technical scheme, through setting up draw-in groove and fixture block, can drive the slide bar at the handle and remove to a definite position when, in the draw-in groove is gone into to the fixture block card to play the effect of fixing handle and slide bar, thereby prevent that handle and slide bar from taking place the displacement, thereby influence the installation of sewing thread and sewing machine's normal use.

The utility model discloses further set up to: the threading spare is including the horizontal pole that is located the mounting groove, horizontal pole one end extends to outside the mounting panel, the horizontal pole other end can with lead to the mutual butt of inslot wall, the horizontal pole surface is equipped with the standing groove of being convenient for place the sewing thread, standing groove length is greater than the length of mounting groove.

Through adopting above-mentioned technical scheme, through setting up horizontal pole and standing groove, can be when needs installation sewing thread, inwards promote the horizontal pole, the horizontal pole passes the pinhole this moment, further place the sewing thread in the standing groove and outwards stimulate the horizontal pole, thereby make the horizontal pole drive the sewing thread and pass the pinhole, the sewing thread passes the pinhole this moment, and because standing groove length is greater than the length of mounting groove, when the horizontal pole resumes the normal position, partial standing groove is located outside the mounting groove, place the sewing thread in the standing groove this moment and can follow the standing groove and lead to the clearance department between the groove and take out.

The utility model discloses further set up to: the limiting plate that horizontal pole fixed surface is connected with can form the butt with the mounting panel, horizontal pole surface cover is equipped with and is located mounting panel and limiting plate and is used for promoting the gliding spring of limiting plate.

Through adopting above-mentioned technical scheme, through setting up the limiting plate, can be convenient for promote the horizontal pole and take place the displacement to through setting up the spring, can loosen the hand when the horizontal pole needs to resume the normal position, the spring that warp this moment promotes the limiting plate and takes place the displacement with the horizontal pole, thereby makes the horizontal pole resume the normal position, is convenient for use the horizontal pole next time.

The utility model discloses further set up to: the presser foot is characterized in that a cavity communicated with the groove is formed in the presser foot, a blade used for cutting sewing threads is hinged in the cavity through a pin shaft, one end of the blade extends into the groove, the other end of the blade is fixedly connected with a transverse plate located in the groove, a pressing column capable of being abutted against the transverse plate is connected in the cavity in a sliding mode, and a torsion spring used for driving the blade to rotate is fixedly connected between the pin shaft and the blade.

Through adopting above-mentioned technical scheme, through setting up the blade, the horizontal pole with press the post, can need change the sewing circuit after the sewing is accomplished, upwards remove the presser foot, press the post this moment because gravity moves down, and the torsional spring that warp drives the blade and takes place to rotate to fixed connection's diaphragm with the style, and take place the butt and cut off it with the sewing thread when the blade pivoted, thereby play the effect of cutting off the sewing thread after the sewing is accomplished, thereby be convenient for sewing machine's use, and can effectively improve sewing machine's work efficiency.

The utility model discloses further set up to: the equal fixedly connected with in pressing post both ends can with the mutual stopper of butt of cavity inner wall.

Through adopting above-mentioned technical scheme, through setting up the stopper, can take place when sliding from top to bottom pressing the post, the butt takes place between stopper and the cavity inner wall to play the effect that the post sliding range was pressed in the restriction.

To sum up, the utility model discloses following beneficial effect has:

through setting up connecting piece and threading spare, can be when needing to install the sewing thread, the sewing needle of upwards sliding, sewing needle and recess looks mutual separation this moment, further downstream moving member, with the threading spare, thereby make the moving member align with the pinhole on the sewing needle, promote the threading spare this moment and make the threading spare pass the pinhole, then put into the threading spare with the line in, and loosen the hand, the threading spare can drive the sewing thread and pass the pinhole this moment, thereby accomplish the installation to the sewing thread, this design not only can convenient and fast install the sewing thread on the sewing needle, and easy operation, easily realize.

Drawings

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

FIG. 2 is a schematic view of the structure of the sewing needle and presser foot of the present invention;

FIG. 3 is a schematic structural view of the sewing needle of the present invention;

fig. 4 is a front longitudinal sectional view of the presser foot of the present invention;

FIG. 5 is a side longitudinal cross-sectional view of the sewing needle of the present invention;

FIG. 6 is a front longitudinal sectional view of the fixing rod and the sliding rod of the present invention;

fig. 7 is a side longitudinal sectional view of the presser foot of the present invention;

fig. 8 is an enlarged view of a portion a in fig. 4 according to the present invention.

Reference numerals are as follows: 1. a body; 2. a fixing rod; 3. a connecting rod; 4. a slide bar; 5. mounting a rod; 6. a presser foot; 7. a sliding groove; 8. a handle; 9. mounting a plate; 10. a limiting plate; 11. a cross bar; 12. a spring; 13. A groove; 14. pressing the column; 15. a sewing needle; 16. a placement groove; 17. a through groove; 18. a card slot; 19. a torsion spring; 20. a pinhole; 21. a chute; 22. a clamping block; 23. a cavity; 24. a transverse plate; 25. a blade; 26. a pin shaft; 27. mounting grooves; 28. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

A threading device for a sewing machine is disclosed, as shown in figures 1-6, comprising a machine body 1 and a connecting rod 3 fixedly connected with the machine body 1, a presser foot 6 fixedly connected with the bottom end of the connecting rod 3 and used for fixing clothes is provided with a groove 13, the machine body 1 is fixedly connected with a mounting rod 5 on one side of the connecting rod 3, the mounting rod 5 is slidably connected with a sewing needle 15 penetrating through the groove 13, the surface of the sewing needle 15 is provided with a needle hole 20 for facilitating the passing of sewing threads, the machine body 1 is positioned on one side of the mounting rod 5 and is slidably connected with a threading part through a connecting part, the connecting part comprises a fixed rod 2 fixedly connected with the machine body 1 and a sliding rod 4 slidably connected with the fixed rod 2, the mounting plate 9 can be driven to move, thereby, the threading part on the mounting plate 9 is aligned with the needle hole 20, the sliding rod 4 and the fixed rod 2 are both positioned on one side of the mounting rod 5, the fixed rod 2 is provided with a sliding groove 21 and a sliding groove 7 communicated with the sliding groove 21, the sliding rod 4 is positioned in the sliding groove 21, the sliding groove 7 is fixedly connected with a handle 8 positioned in the sliding groove 7, the sliding rod 4 can conveniently drive the sliding rod 4 to move, a plurality of clamping grooves 18 are arranged on the sliding groove 4, the sliding groove is fixedly connected with a clamping block 18 which can be conveniently, the mounting plate 9 which can be used for facilitating the bottom end of the mounting plate 9 to pass through the sewing needle 17.

As shown in fig. 1-5, be equipped with on the mounting panel 9 with lead to the communicating mounting groove 27 of groove 17, threading spare sets up threading spare including the horizontal pole 11 that is located mounting groove 27 in the mounting

groove

27, 11 one end of horizontal pole extends outside the mounting panel 9, the horizontal pole 11 other end can with lead to the mutual butt of groove 17 inner wall, 11 fixed surface of horizontal pole is connected with can form the limiting plate 10 of butt with mounting panel 9, can restrict the home range of

horizontal pole

11, 11 surperficial covers of horizontal pole are equipped with the spring 12 that is located between mounting panel 9 and limiting plate 10, can drive horizontal pole 11 and limiting plate 10 recovery position, 11 surfaces of horizontal pole are equipped with the standing groove 16 of being convenient for place the sewing thread, standing groove 16 length is greater than the length of mounting groove 27, can be after 11 recovery position of horizontal pole, partial standing groove 16 is located outside mounting groove 27, thereby be convenient for taking out of sewing thread.

As shown in fig. 1-8, a cavity 23 communicating with the groove 13 is provided in the presser foot 6, a blade 25 for cutting the sewing thread is hinged in the cavity 23 through a pin 26, one end of the blade 25 extends into the groove 13, the other end of the blade 25 is fixedly connected with a transverse plate 24 positioned in the groove 13, a pressing column 14 capable of abutting against the transverse plate 24 is slidably connected in the cavity 23, the cross rod 11 and the blade 25 can be pushed to rotate, thereby cutting the sewing thread, two ends of the pressing column 14 are fixedly connected with limit blocks 28, a limit groove convenient for the limit blocks 28 to slide is provided in the presser foot 6, the separation from the cavity 23 is prevented from being pressed, a torsion spring 19 for driving the blade 25 to rotate is fixedly connected between the pin 26 and the blade 25, and the blade 25 can be driven to return to the original position.

The working principle is as follows: when the sewing thread needs to pass through the needle hole 20 on the sewing needle 15, the sewing needle 15 is moved upwards, the sewing needle 15 is separated from the groove 13 on the presser foot 6, the handle 8 on the sliding rod 4 is grasped by hands and moved downwards, the handle 8 is positioned in the sliding groove 7 on the fixed rod 2 and slides, the sliding rod 4 is positioned in the sliding groove 21 in the fixed rod 2, the mounting plate 9 is fixedly connected with the sliding rod 4, the mounting plate 9 moves along with the movement of the sliding rod 4, meanwhile, along with the sliding of the mounting plate 9, the sewing needle 15 passes through the through groove 17 on the mounting plate 9 until the clamping groove 18 on the sliding rod 4 is abutted against the surface of the clamping block 22 fixedly connected to the inner wall of the sliding groove 21 so as to fix the sliding rod 4 and the mounting plate 9, the needle hole 20 on the mounting plate 15 is aligned with the mounting groove 27 on the mounting plate 9, the limiting plate 10 is pressed inwards, the transverse rod 11 fixedly connected with the limiting plate 10 pushes the transverse rod 11 to pass through the needle hole 20 until the top end of the through groove 17 on the mounting plate 9 is abutted against the inner wall of the clamping block 22, the spring 12 positioned between the mounting plate 9, the mounting plate 11 and the transverse rod 11 is pushed to restore the transverse rod 16 on the mounting groove 16, and the transverse rod 16 is positioned on the mounting plate 11, and the mounting groove 16, when the transverse rod 11 is moved to restore the mounting groove, and the transverse rod 16 is moved to restore the mounting groove, and the mounting groove 16, and the transverse rod 16, thereby completing the installation of the sewing thread.

When needing to cut off the sewing thread after the sewing is finished, move the presser foot 6 upwards, the presser foot 6 is separated with the clothing this moment, and the torsional spring 19 that the cover located blade 25 and the epaxial deformation of round pin 26 drives blade 25 and the diaphragm 24 with blade 25 fixed connection because disappearance of effort, presses the post 14 to move down because of the effort of gravity and push pedal this moment, rotates when the blade 25 to the shift position when mutually butt with the sewing thread, blade 25 continues to rotate this moment to cut off the sewing thread.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan 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 threading device for sewing machine, includes organism (1) and with organism (1) fixed connection's connecting rod (3), its characterized in that: the sewing machine is characterized in that a presser foot (6) is fixedly connected to the bottom end of the connecting rod (3), a groove (13) is formed in the presser foot (6), the machine body (1) is located on one side of the connecting rod (3) and is fixedly connected with an installation rod (5), a sewing needle (15) penetrating through the groove (13) is connected to the installation rod (5) in a sliding mode, a needle hole (20) facilitating the passing of a sewing thread is formed in the surface of the sewing needle (15), and a thread penetrating piece is connected to one side, located on the installation rod (5), of the machine body (1) in a sliding mode through a connecting piece.

2. The threading device for sewing machine according to claim 1, wherein: the connecting piece includes dead lever (2) of fixed connection on organism (1) and slide bar (4) with dead lever (2) sliding connection, be equipped with a spout (21) on dead lever (2), slide bar (4) are located spout (21) and slide, slide bar (4) all are located installation pole (5) one side with dead lever (2), slide bar (4) bottom fixedly connected with mounting panel (9), be equipped with logical groove (17) that sewing needle (15) of being convenient for passed on mounting panel (9), be equipped with on mounting panel (9) and lead to communicating mounting groove (27) in groove (17), the threading spare sets up in mounting groove (27).

3. The threading device for a sewing machine according to claim 2, characterized in that: the surface of the fixed rod (2) is provided with a sliding groove (7) communicated with the sliding groove (21), and the surface of the sliding rod (4) is fixedly connected with a handle (8) which is positioned in the sliding groove (7) and slides.

4. The threading device for sewing machine according to claim 2, characterized in that: the sliding rod (4) is provided with a plurality of clamping grooves (18), and the inner wall of the sliding groove (21) is fixedly connected with a plurality of clamping blocks (22) which can be mutually abutted against the clamping grooves (18).

5. The threading device for a sewing machine according to claim 2, characterized in that: threading spare is including horizontal pole (11) that are located mounting groove (27), outside horizontal pole (11) one end extended to mounting panel (9), horizontal pole (11) other end can with lead to groove (17) inner wall butt each other, horizontal pole (11) surface is equipped with standing groove (16) of being convenient for place the sewing thread, standing groove (16) length is greater than the length of mounting groove (27).

6. The threading device for a sewing machine according to claim 5, characterized in that: cross rod (11) fixed surface is connected with can form limiting plate (10) of butt with mounting panel (9), cross rod (11) surface cover is equipped with and is located between mounting panel (9) and limiting plate (10) and is used for promoting gliding spring (12) of limiting plate (10).

7. The threading device for a sewing machine according to claim 1, characterized in that: the sewing machine is characterized in that a cavity (23) communicated with the groove (13) is formed in the presser foot (6), a blade (25) used for cutting off sewing threads is hinged in the cavity (23) through a pin shaft (26), one end of the blade (25) extends into the groove (13), the other end of the blade (25) is fixedly connected with a transverse plate (24) located in the groove (13), a pressing column (14) capable of being mutually abutted to the transverse plate (24) is connected in the cavity (23) in a sliding mode, and a torsion spring (19) used for driving the blade (25) to rotate is fixedly connected between the pin shaft (26) and the blade (25).

8. The threading device for sewing machine of claim 7, wherein: and both ends of the pressing column (14) are fixedly connected with limit blocks (28) which can be mutually abutted against the inner wall of the cavity (23).