CN217499643U

CN217499643U - Curve sewing transmission device capable of adjusting stitch spacing

Info

Publication number: CN217499643U
Application number: CN202221800505.2U
Authority: CN
Inventors: 张彧萌; 王中禹; 王林森; 曹华欣; 王靓初; 周远航
Original assignee: Nantong Institute of Technology
Current assignee: Nantong Institute of Technology
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-27
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to a sewing technical field specifically is curve sewing transmission of adjustable stitch interval, and the syringe needle is installed to sewing machine's tip lift drive, is provided with flexible post between the upper end of syringe needle and the sewing machine, and the base is just being provided with the needle groove to the position of syringe needle, and the lower extreme in needle groove is provided with the faller, and the lower extreme of faller is provided with the screw thread and rotates the extrusion stem that the grafting has three external diameters of group to increase progressively, is provided with the chamfer between the adjacent extrusion stem, and beneficial effect is: realize the regulation of syringe needle length through setting up flexible post, and then reach the purpose of control interval, utilize the screw thread of stripper bar to rotate simultaneously to the stripper bar and the faller contact of adjusting different external diameters reach the purpose of adjusting the faller height, make the high adaptation of faller in the needle groove in the change of syringe needle height-lifting, thereby reduced striking and noise, when sewing the curve, improved the smoothness nature of sewing, improved efficiency.

Description

Curve sewing transmission device capable of adjusting stitch spacing

Technical Field

The utility model relates to a sewing technical field specifically is curve sewing transmission of adjustable stitch interval.

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.

In the prior art, a sewing machine achieves the purpose of driving a needle head to ascend and descend through mechanical transmission, so that the sewing effect is achieved, and in the adjusting process aiming at different distances, the ascending and descending height of the needle head needs to be controlled, so that the purpose of adjusting the stitch pitch is achieved.

However, in the actual sewing process, the needle head is easy to impact the needle plate at the lower end in the descending process due to the change of the lifting height of the needle head, so that noise is generated, the service life of the needle head is influenced, meanwhile, when curve sewing is carried out, textile fabrics need to be rotated, the needle head impacts the process, the thread clamping and the like are easy to cause, and the sewing efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a curve sewing transmission of adjustable stitch interval to solve the adaptation regulation problem of faller and syringe needle elevating height in the interval accommodation process.

In order to achieve the above object, the utility model provides a following technical scheme:

a curved sewing actuator capable of adjusting a stitch interval, the actuator comprising:

the sewing machine is arranged on the sewing table, the end part of the sewing machine is provided with a needle head in a lifting driving way, a telescopic column is arranged between the upper end of the needle head and the sewing machine, and the needle head is fixed at the lower end of the telescopic column;

the sewing table is provided with a base, a needle groove is formed in the position, opposite to the needle head, of the base, a needle plate is arranged at the lower end of the needle groove, three groups of extrusion rods with gradually increased outer diameters are arranged at the lower end of the needle plate in a threaded rotating and inserting mode, and a chamfer is arranged between every two adjacent extrusion rods.

Preferably, the upper end of the needle plate is inserted in the needle groove, the lower end of the needle plate is provided with a pair of positioning rods which are bilaterally symmetrical, the inner wall of the sewing table is provided with positioning holes, and the positioning rods are inserted in the positioning holes.

Preferably, a guide post is vertically inserted into an inner cavity of the sewing table, a lower arc plate is fixedly arranged on a Shandong of the guide post, and the lower arc plate is attached to the arc outer wall of the lower end of the extrusion rod.

Preferably, a first spring is pressed between the lower end of the lower arc plate and the inner wall of the sewing table, and the first spring is sleeved on the outer wall of the guide column.

Preferably, the lower end of the needle plate is provided with an upper arc plate, and the upper arc plate is attached to the outer wall of the extrusion rod.

Preferably, the front end of the sewing table is provided with an adjusting block, a threaded hole penetrates through the adjusting block, the front end of the extrusion rod is provided with a stud, and the stud is rotatably installed in the threaded hole in a threaded mode.

Preferably, an open slot is formed in one side of the threaded hole, an insert rod is inserted into a position, corresponding to the open slot, of the adjusting block, an arc surface at one end of the insert rod is pressed on the outer wall of the stud, and a second spring is pressed between the insert rod and the inner wall of the open slot.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a setting up flexible post and realizing the regulation of syringe needle length, and then reaching control interval's purpose, utilizing the screw thread of stripper bar to rotate simultaneously to adjust the stripper bar and the faller contact of different external diameters, reach the purpose of adjusting the faller height, make the high adaptation of faller in the needle groove in the change of syringe needle height-up-and-down, thereby reduced striking and noise, when sewing to the curve, improved the smoothness nature of sewing, improved efficiency.

Drawings

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

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the extrusion stem of the present invention.

In the figure: 1. a sewing table; 2. a sewing machine; 3. a base; 4. a needle head; 5. a telescopic column; 6. a needle groove; 7. a needle plate; 8. an upper arc plate; 9. positioning a rod; 10. an extrusion stem; 11. positioning holes; 12. a first spring; 13. a guide post; 14. a lower arc plate; 15. an adjusting block; 16. a stud; 17. a threaded hole; 18. an open slot; 19. inserting a rod; 20. a second spring; 21. and (6) chamfering.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution:

example 1:

a curve sewing transmission device capable of adjusting the stitch interval comprises a sewing machine 2.

Sewing machine 2 installs on sewing platform 1, and sewing machine 2's tip lift drive installs syringe needle 4, is provided with flexible post 5 between the upper end of syringe needle 4 and sewing machine 2, and syringe needle 4 is fixed at the lower extreme of flexible post 5, through installing syringe needle 4 on flexible post 5, reaches the height of adjusting 4 tip distances needle groove 6 of syringe needle to reach the purpose of adjusting 4 lifting height of syringe needle, realize the purpose of control stitch interval.

The sewing table 1 is provided with a base 3, a needle groove 6 is arranged at the position of the base 3 opposite to the needle head 4, a needle plate 7 is arranged at the lower end of the needle groove 6, three groups of extrusion rods 10 with gradually increased outer diameters are inserted into the lower end of the needle plate 7 in a threaded rotation mode, and a chamfer 21 is arranged between every two adjacent extrusion rods 10.

Utilize the screw thread of stripper bar 10 to rotate to the stripper bar 10 of adjusting different external diameters contacts with faller 7, reaches the purpose of adjusting the faller 7 height, makes the high adaptation of faller 7 in needle groove 6 in the change of syringe needle 4 elevating height, thereby has reduced striking and noise, when sewing to the curve, has improved the smoothness nature of sewing, has improved efficiency, through setting up chamfer 21, realizes the level and smooth extrusion when stripper bar 10 switches.

Example 2:

in addition to embodiment 1, in order to improve the lifting smoothness of the needle plate 7, the upper end of the needle plate 7 is inserted into the needle groove 6, the lower end of the needle plate 7 is provided with a pair of positioning rods 9 which are bilaterally symmetrical, the inner wall of the sewing table 1 is provided with a positioning hole 11, and the positioning rods 9 are inserted into the positioning hole 11.

Through the grafting of setting up locating lever 9 and locating hole 1, realize the position of faller 7 both ends and prescribe a limit to, keep the steady lift of faller 7.

Example 3:

on the basis of embodiment 2, in order to realize the stable rotation switching of the extrusion stem 10, the inner cavity of the sewing table 1 is vertically inserted with a guide column 13, a lower arc plate 14 is fixedly arranged on a Shandong of the guide column 13, the lower arc plate 14 is attached to the arc outer wall of the lower end of the extrusion stem 10, a first spring 12 is pressed between the lower end of the lower arc plate 14 and the inner wall of the sewing table 1, the first spring 12 is sleeved on the outer wall of the guide column 13, an upper arc plate 8 is arranged at the lower end of the needle plate 7, and the upper arc plate 8 is attached to the outer wall of the extrusion stem 10.

Through setting up the last arc 8 and the lower arc 14 that distribute from top to bottom, realize the outer wall laminating to the extrusion stem 10, utilize the switching of first spring 12 adaptation extrusion stem 10 external diameter simultaneously, guarantee the steady switching of extrusion stem 10.

Example 4:

on the basis of embodiment 3, in order to define the position of the extrusion rod 10, the method is also provided

The front end of the sewing table 1 is provided with an adjusting block 15, a threaded hole 17 is arranged on the adjusting block 15 in a penetrating mode, the front end of the extrusion rod 10 is provided with a stud 16, and the stud 16 is installed in the threaded hole 17 in a threaded rotating mode.

An open slot 18 is arranged at one side of the threaded hole 17, an inserted link 19 is inserted at a position of the adjusting block 15 corresponding to the open slot 18, an arc surface at one end of the inserted link 19 is pressed on the outer wall of the stud 16, and a second spring 20 is pressed between the inserted link 19 and the inner wall of the open slot 18.

The threaded rotation installation of the stud 16 is realized by arranging the threaded hole 17, the purpose of limiting the position of the extrusion rod 10 is achieved, and the insertion rod 19 is pressed on the outer wall of the stud 16 under the action of the reset elastic force of the second spring 20 by arranging the second spring 20 and the insertion rod 19, so that the outer wall of the stud 16 is extruded and fixed, and the mis-rotation of the stud 16 is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The curve sewing transmission device capable of adjusting the stitch interval is characterized in that: the transmission device includes:

the sewing machine (2) is arranged on the sewing table (1), the end part of the sewing machine (2) is driven to lift to be provided with a needle head (4), a telescopic column (5) is arranged between the upper end of the needle head (4) and the sewing machine (2), and the needle head (4) is fixed at the lower end of the telescopic column (5);

the sewing machine is characterized in that a base (3) is arranged on the sewing table (1), a needle groove (6) is formed in the position, opposite to the needle head (4), of the base (3), a needle plate (7) is arranged at the lower end of the needle groove (6), three groups of extrusion rods (10) with gradually increased outer diameters are arranged at the lower end of the needle plate (7) in a threaded rotating and inserting mode, and a chamfer (21) is arranged between every two adjacent extrusion rods (10).

2. The curved sewing transmission device with adjustable stitch pitch according to claim 1, wherein: the upper end of the needle plate (7) is inserted into the needle groove (6), the lower end of the needle plate (7) is provided with a pair of positioning rods (9) which are bilaterally symmetrical, the inner wall of the sewing table (1) is provided with a positioning hole (11), and the positioning rods (9) are inserted into the positioning hole (11).

3. The curved sewing transmission device with adjustable stitch pitch according to claim 1, wherein: the inner cavity of the sewing table (1) is vertically inserted with a guide column (13), a lower arc plate (14) is fixedly arranged on a Shandong of the guide column (13), and the lower arc plate (14) is attached to the outer wall of the lower end arc of the extrusion rod (10).

4. The curved sewing transmission device with adjustable stitch interval according to claim 3, wherein: a first spring (12) is pressed between the lower end of the lower arc plate (14) and the inner wall of the sewing table (1), and the first spring (12) is sleeved on the outer wall of the guide post (13).

5. The curved sewing transmission device with adjustable stitch interval according to claim 4, wherein: the lower end of the needle plate (7) is provided with an upper arc plate (8), and the upper arc plate (8) is attached to the outer wall of the extrusion rod (10).

6. The curved sewing transmission device with adjustable stitch pitch according to claim 5, wherein: the front end of the sewing table (1) is provided with an adjusting block (15), a threaded hole (17) is formed in the adjusting block (15) in a penetrating mode, a stud (16) is arranged at the front end of the extrusion rod (10), and the stud (16) is installed in the threaded hole (17) in a threaded rotating mode.

7. The curved sewing transmission device with adjustable stitch pitch according to claim 6, wherein: an open slot (18) is formed in one side of the threaded hole (17), an inserted rod (19) is inserted in a position, corresponding to the open slot (18), of the adjusting block (15), the cambered surface at one end of the inserted rod (19) is pressed on the outer wall of the stud (16), and a second spring (20) is pressed between the inserted rod (19) and the inner wall of the open slot (18).