CN212834447U

CN212834447U - Needle bar mechanism of sewing machine

Info

Publication number: CN212834447U
Application number: CN202021773381.4U
Authority: CN
Inventors: 张友富; 胡志军; 阮建军
Original assignee: Taizhou Oufeng Machinery Co Ltd
Current assignee: Taizhou Oufeng Machinery Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-30
Anticipated expiration: 2030-08-21

Abstract

The utility model relates to the technical field of sewing machines, and discloses a needle bar mechanism of a sewing machine, which comprises a sewing machine body, wherein the front surface of the sewing machine body is provided with a needle bar sleeve, the needle bar sleeve is fixedly connected with the sewing machine body, the upper end and the lower end of the needle bar sleeve are fixedly connected with connecting pieces, a needle bar is arranged in the needle bar sleeve, the bottom of the needle bar is fixedly connected with a needle clip, the bottom of the needle clip is provided with a needle head, a connecting ring is arranged above the needle clip, and the connecting ring is sleeved on the outer surface of the needle bar, the utility model can drive the disk to rotate by the sewing machine body, thereby the disk can drive the needle bar to vertically move up and down in the needle bar sleeve by the connecting pieces, the needle bar is supported and fixed by the connecting pieces, the resistance and the friction are smaller by the, thereby being convenient for sewing and ensuring the sewing efficiency.

Description

Needle bar mechanism of sewing machine

Technical Field

The utility model relates to a sewing machine technical field specifically is a sewing machine needle bar mechanism.

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-push embroidery, computer embroidery, etc.

The needle bar mechanism of the sewing machine is a vital part of each large mechanism of the sewing machine, and the motion precision and coordination of the needle bar mechanism directly influence the sewing quality. The traditional internal transmission parts of the needle bar mechanism of the sewing machine do not adopt better protection measures, so that the up-and-down movement resistance of the needle is large, the abrasion is also large, and the needle bar mechanism of the sewing machine is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The needle bar mechanism of the sewing machine is not enough to solve the problem of the prior art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a needle bar mechanism of a sewing machine comprises a sewing machine body, wherein a needle bar sleeve is arranged on the front side of the sewing machine body and fixedly connected with the sewing machine body, connecting pieces are fixedly connected to the upper end and the lower end of the needle bar sleeve respectively, a needle bar is arranged in the needle bar sleeve, a needle clamp is fixedly connected to the bottom of the needle bar, a needle head is arranged at the bottom of the needle clamp, a connecting ring is arranged above the needle clamp and sleeved on the outer surface of the needle bar, the connecting ring is in contact with the needle clamp, a first fixing rod is fixedly connected to the outer surface of the needle bar, a disc is arranged above the needle bar sleeve and rotatably connected with the sewing machine body through a rotating shaft, a second fixing rod is fixedly connected to the left side of the surface of the disc, a connecting strip is arranged on the front side of the sewing machine body and is inclined, and the first, the top of the needle rod is fixedly connected with a cover cap.

Preferably, the front of the needle bar sleeve is internally provided with a groove which is arc-shaped.

Preferably, two the connecting piece size shape is equal, two the connecting piece is the semicircle type setting, two the connecting piece is inside equally divide and to be circular with between the inside recess of seting up of needle bar cover respectively, two the one end that the connecting piece was kept away from respectively is equallyd divide and is do not bonded the protection pad.

Preferably, the outer surface of the needle rod is respectively contacted with the needle rod sleeve and the inner walls of the two connecting pieces.

Preferably, the first fixing rod is arranged between the two connecting pieces.

Preferably, the needle bar sleeve and the disc are not located on the same vertical plane.

Preferably, the first fixing rod and the second fixing rod are respectively far away from the needle rod and one end of the disc and are fixedly connected with top covers, the diameters of the two top covers are respectively larger than those of the first fixing rod and the second fixing rod, and the length of the second fixing rod is larger than that of the first fixing rod.

Preferably, one end of each of the two top covers, which is close to the needle rod and one end of the disc, are respectively contacted with the connecting strip.

Compared with the prior art, the utility model provides a sewing machine needle bar mechanism possesses following beneficial effect:

1. the utility model discloses a make the sewing machine body drive the disc and rotate to can make the disc pass through the connecting strip pulling needle bar vertical reciprocating in the needle bar cover, through setting up the connecting piece, support fixedly to the needle bar, make the needle bar reciprocate and make resistance and friction less, thereby wherein the needle bar reciprocates and can drive the syringe needle through the needle clip and reciprocate, thereby can conveniently sew and weave, guaranteed the efficiency of sewing and weaving.

2. The utility model discloses a both ends bonding protection pad about the connecting piece avoids the needle bar other structure striking to touch the connecting piece when the up-and-down motion, carries out shock attenuation protection to it, through setting up the go-between, protects needle clamp and syringe needle, through setting up the block, prevents that the needle bar from breaking away from the needle bar cover, thereby has guaranteed the utility model discloses a life makes its practicality higher.

Drawings

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

FIG. 2 is a side view of the needle bar sleeve of the present invention;

fig. 3 is an enlarged schematic view of the present invention a.

In the figure: the sewing machine comprises a sewing machine body 1, a needle bar sleeve 2, a needle bar 3, a connecting piece 4, a protective pad 5, a needle clamp 6, a needle head 7, a connecting ring 8, a first fixing rod 9, a top cover 10, a cap 11, a connecting strip 12, a disc 13 and a second fixing rod 14.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a needle bar mechanism of a sewing machine comprises a sewing machine body 1, a needle bar sleeve 2 is arranged on the front side of the sewing machine body 1, a groove is formed in the front side of the needle bar sleeve 2 and is in an arc shape, the needle bar sleeve 2 is fixedly connected with the sewing machine body 1, connecting pieces 4 are fixedly connected to the upper end and the lower end of the needle bar sleeve 2, the two connecting pieces 4 are equal in size and shape, the two connecting pieces 4 are both in a semicircular arrangement, the inner parts of the two connecting pieces 4 are respectively in a circular shape with the groove formed in the inner part of the needle bar sleeve 2, protective pads 5 are respectively bonded to the far ends of the two connecting pieces 4 respectively, the needle bar 3 is prevented from being impacted and contacted with the connecting pieces 4 by other structures when moving up and down by bonding the protective pads 5 to the upper end and the lower end of the connecting pieces 4, and is subjected to shock absorption protection, a needle bar 3 is arranged in the needle bar sleeve, the bottom of the needle bar 3 is fixedly connected with a needle clamp 6, the bottom of the needle clamp 6 is provided with a needle head 7, a connecting ring 8 is arranged above the needle clamp 6, the needle clamp 6 and the needle head 7 are protected by arranging the connecting ring 8, the connecting ring 8 is sleeved on the outer surface of the needle bar 3, the connecting ring 8 is contacted with the needle clamp 6, the outer surface of the needle bar 3 is fixedly connected with a fixing rod I9, the fixing rod I9 is arranged between two connecting pieces 4, a disc 13 is arranged above the needle bar sleeve 2, the disc 13 is rotatably connected with the sewing machine body 1 through a rotating shaft, the needle bar sleeve 2 and the disc 13 are not positioned on the same vertical surface, the disc 13 is driven by the sewing machine body 1 to rotate, so that the disc 13 can drive the needle bar 3 to vertically move up and down in the needle bar sleeve 2 through a connecting strip 12, the needle bar 3 is supported and fixed through arranging the connecting pieces 4, the needle, thereby being convenient for sewing and weaving and ensuring sewing and weaving efficiency, the left side of the surface of the disc 13 is fixedly connected with a second fixing rod 14, the front surface of the sewing machine body 1 is provided with a connecting strip 12, one ends of the two top covers 10 respectively close to the needle bar 3 and the disc 13 are respectively contacted with the connecting strip 12, the connecting strip 12 is arranged obliquely, a first fixing rod 9 and a second fixing rod 14 respectively penetrate through two ends of the connecting strip 12, one ends of the first fixing rod 9 and the second fixing rod 14 respectively far away from the needle bar 3 and the disc 13 are respectively fixedly connected with the top covers 10, the diameters of the two top covers 10 are respectively larger than the diameters of the first fixing rod 9 and the second fixing rod 14, the length of the second fixing rod 14 is larger than the length of the first fixing, through setting up block 11, prevent that needle bar 3 from breaking away from needle bar cover 2, thereby guaranteed the utility model discloses a life makes its practicality higher.

When using, drive disc 13 through sewing machine body 1 and rotate, disc 13 drives connecting strip 12 through two 14 of dead lever and top cap 10 drive when rotating and rotates, thereby make connecting strip 12 reciprocate in needle bar cover 2 through one 9 pulling needle bars 3 of dead lever, thereby needle bar 3 reciprocates and can drive syringe needle 7 through needle holder 6 and reciprocate, sew and weave, when needle bar 3 up-and-down motion, through setting up go-between 8, protection pad 5 and block 11, protect needle bar cover 2 and needle bar 3.

In conclusion, the utility model can make the disc 13 vertically move up and down in the needle bar sleeve 2 by the disc 13 pulled by the connecting strip 12 through the sewing machine body 1 driving the disc 13 to rotate, the needle bar 3 is supported and fixed by arranging the connecting piece 4, so that the needle bar 3 moves up and down to ensure that the resistance and the friction are small, wherein the needle bar 3 moves up and down to drive the needle head 7 to move up and down through the needle clamp 6, thereby being convenient for sewing and weaving, ensuring the sewing and weaving efficiency, by bonding the protective pads 5 on the upper end and the lower end of the connecting piece 4, other structures are prevented from colliding and touching the connecting piece 4 when the needle bar 3 moves up and down, the shock absorption protection is carried out on the needle clip 6, the needle head 7 is protected by arranging the connecting ring 8, through setting up block 11, prevent that needle bar 3 from breaking away from needle bar cover 2, thereby guaranteed the utility model discloses a life makes its practicality higher.

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 utility model provides a sewing machine needle bar mechanism, includes sewing machine body (1), its characterized in that: the sewing machine is characterized in that a needle bar sleeve (2) is arranged on the front side of the sewing machine body (1), the needle bar sleeve (2) is fixedly connected with the sewing machine body (1), connecting pieces (4) are fixedly connected to the upper end and the lower end of the needle bar sleeve (2), a needle bar (3) is arranged inside the needle bar sleeve (2), a needle clamp (6) is fixedly connected to the bottom of the needle bar (3), a needle head (7) is arranged at the bottom of the needle clamp (6), a connecting ring (8) is arranged above the needle clamp (6), the connecting ring (8) is sleeved on the outer surface of the needle bar (3), the connecting ring (8) is in contact with the needle clamp (6), a first fixing rod (9) is fixedly connected to the outer surface of the needle bar (3), a disc (13) is arranged above the needle bar sleeve (2), the disc (13) is rotatably connected with the sewing machine body (1) through a rotating shaft, a, the sewing machine is characterized in that a connecting strip (12) is arranged on the front face of the sewing machine body (1), the connecting strip (12) is arranged in an inclined mode, two ends of the connecting strip (12) are respectively penetrated through the first fixing rod (9) and the second fixing rod (14), and a cover cap (11) is fixedly connected to the top of the needle rod (3).

2. The needle bar mechanism of a sewing machine of claim 1, wherein: the needle rod sleeve (2) is characterized in that a groove is formed in the front of the needle rod sleeve and is arc-shaped.

3. The needle bar mechanism of a sewing machine of claim 2, wherein: two connecting piece (4) size shape equals, two connecting piece (4) are the semicircle type setting, two connecting piece (4) are inside equally divide do not to match for between the recess of seting up with the inside of needle bar cover (2) circularly, two the one end that connecting piece (4) were kept away from respectively is equallyd divide and is do not bonded protective pad (5).

4. The needle bar mechanism of a sewing machine of claim 1, wherein: the outer surface of the needle rod (3) is respectively contacted with the inner walls of the needle rod sleeve (2) and the two connecting pieces (4).

5. The needle bar mechanism of a sewing machine of claim 1, wherein: the first fixing rod (9) is arranged between the two connecting pieces (4).

6. The needle bar mechanism of a sewing machine of claim 1, wherein: the needle bar sleeve (2) and the disc (13) are not positioned on the same vertical surface.

7. The needle bar mechanism of a sewing machine of claim 1, wherein: the fixing rod I (9) and the fixing rod II (14) are respectively far away from the equal fixedly connected top covers (10) at one ends of the needle rod (3) and the disc (13), the diameters of the top covers (10) are respectively larger than the diameters of the fixing rod I (9) and the fixing rod II (14), and the length of the fixing rod II (14) is larger than that of the fixing rod I (9).

8. The needle bar mechanism of a sewing machine of claim 7, wherein: one ends of the two top covers (10) close to the needle bar (3) and one end of the disc (13) are respectively contacted with the connecting strip (12).