CN220224560U

CN220224560U - Sewing machine with broken thread structure

Info

Publication number: CN220224560U
Application number: CN202321559623.3U
Authority: CN
Inventors: 孙浩然; 孙文娟; 李霞
Original assignee: Jining Polytechnic
Current assignee: Jining Polytechnic
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-12-22
Anticipated expiration: 2033-06-19

Abstract

The utility model provides a sewing machine with a broken thread structure, which comprises a frame, wherein a sewing machine main body is fixed on the upper surface of the frame, a positioning shaft is rotatably arranged in the sewing machine main body through a bearing, a wire coil is fixed on the upper surface of the positioning shaft, a crank rotating rod is rotatably arranged in the sewing machine main body through the bearing, bevel gears are fixed at one end of the crank rotating rod and one end of the positioning shaft, the two bevel gears are in meshed connection, and a plurality of positioning rods are fixed on the upper surface of the wire coil at equal intervals. The utility model provides a sewing machine with an automatic thread breaking structure, wherein a user places a plurality of thread cylinders with different colors above a thread coil through a positioning rod, then the user can freely select the thread cylinder for sewing in the sewing process, and the user can drive the thread coil to rotate and adjust the thread cylinder position through the meshing transmission between two bevel gears only by rotating a crank rotating rod, so that the user can use the thread cylinder conveniently.

Description

Sewing machine with broken thread structure

Technical Field

The utility model relates to the field of sewing machines, in particular to a sewing machine with a broken thread structure.

Background

A sewing machine is a machine that interweaves or sews one or more layers of stitching material by forming one or more stitches on the stitching material with one or more stitching threads.

The sewing machine can sew cotton, hemp, silk, wool, artificial fiber and other fabrics, leather, plastic, paper and other products, and the sewn stitch is neat, beautiful, flat, firm, fast in sewing speed and simple and convenient to use. And the artistic forms of hand-push embroidery, computerized embroidery and the like are derived from the hand-push embroidery.

Most of the existing sewing machines can only position one thread cylinder in the using process, then thread is threaded for sewing operation, and when threads need to be replaced, the thread cylinder is detached and replaced with a new thread cylinder, so that the operation is complex and inconvenient.

Accordingly, there is a need to provide a sewing machine with a thread breakage structure that solves the above-mentioned problems.

Disclosure of Invention

The utility model provides a sewing machine with a broken thread structure, which solves the problems that most of the existing sewing machines can only position one thread cylinder in the use process, then thread is threaded for sewing operation, and when the thread needs to be replaced, the thread cylinder needs to be detached and replaced with a new thread cylinder, and the operation is complex and inconvenient.

In order to solve the technical problems, the utility model provides: the utility model provides a sewing machine with broken string structure, includes the frame, the upper surface of frame is fixed with the sewing machine main part, the locating shaft is installed through the bearing rotation to the inside of sewing machine main part, the upper surface of locating shaft is fixed with the drum, the crank bull stick is installed through the bearing rotation to the inside of sewing machine main part, the one end of crank bull stick and the one end of locating shaft all are fixed with the helical gear, two for the meshing connection between the helical gear, the upper surface equidistance of drum is fixed with a plurality of locating levers.

Preferably, a thread-transferring seat is fixed on the upper surface of the sewing machine main body, and a small motor is fixed on one side of the thread-transferring seat.

Preferably, a blade is fixed on the side edge of the wire transmission seat outside the output shaft of the small motor.

Preferably, the outer walls of the two sides of the frame are fixed with positioning blocks, and the number of the positioning blocks is four.

Preferably, each two positioning blocks are internally provided with a threaded rod in a rotating way through bearings, wherein the side edges of the two positioning blocks are fixedly provided with motors, and the output shafts of the two motors are fixedly connected with one ends of the two threaded rods respectively.

Preferably, the upper surface of the frame is slidably provided with a dust pushing plate through two threaded rods, and two sides of the dust pushing plate are in threaded connection with the two threaded rods.

Compared with the related art, the sewing machine with the broken wire structure has the following beneficial effects:

the beneficial effects of the utility model are as follows: a plurality of wire barrels with different colors are placed above the wire coil through the locating rod by a user, then the user can freely select the wire barrel for sewing in the sewing process, and the user only needs to rotate the crank rotating rod, and can drive the wire coil to rotate through meshing transmission between the two bevel gears to adjust the position of the wire barrel, so that the user can use the wire coil.

Drawings

FIG. 1 is a schematic view of a sewing machine with a broken thread structure according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown in FIG. 1A;

fig. 3 is a schematic diagram of the connection structure of the wire coil and the crank lever shown in fig. 1.

In the figure: 1. a frame; 2. a sewing machine main body; 3. wire coil; 4. a positioning rod; 5. bevel gear; 6. positioning a shaft; 7. a crank rotating rod; 8. a wire transmission seat; 9. a small motor; 10. a blade; 11. a positioning block; 12. a threaded rod; 13. a dust pushing plate; 14. and a motor.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural view of a preferred embodiment of a sewing machine with a thread breaking structure according to the present utility model; FIG. 2 is an enlarged schematic view of the structure shown in FIG. 1A; fig. 3 is a schematic diagram of the connection structure of the wire coil and the crank lever shown in fig. 1. The utility model provides a sewing machine with broken string structure, including frame 1, the upper surface of frame 1 is fixed with sewing machine main part 2, and the inside of sewing machine main part 2 is installed through the bearing rotation and is fixed with locating shaft 6, and the upper surface of locating shaft 6 is fixed with drum 3, and the inside of sewing machine main part 2 is installed through the bearing rotation and is installed crank bull stick 7, and one end of crank bull stick 7 and the one end of locating shaft 6 are all fixed with helical gear 5, are the meshing connection between two helical gear 5, and the upper surface equidistance of drum 3 is fixed with a plurality of locating levers 4;

the user places a plurality of different colours's bobbin in the top of drum 3 through locating lever 4, and later the user can freely select the bobbin to sew at the in-process of sewing usefulness, and the user only need rotate crank bull stick 7, can drive drum 3 through the meshing transmission between two helical gears 5 and rotate the adjustment bobbin position to the user uses.

A thread conveying seat 8 is fixed on the upper surface of the sewing machine main body 2, a small motor 9 is fixed on one side of the thread conveying seat 8, a blade 10 is fixed on the outer part of an output shaft of the small motor 9 and positioned on the side edge of the thread conveying seat 8;

after the sewing process is finished, a user can start the small motor 9, and the small motor 9 can drive the blade 10 to rotate after being started so as to automatically cut the thread.

The two side outer walls of the frame 1 are fixedly provided with positioning blocks 11, the number of the positioning blocks 11 is four, threaded rods 12 are rotatably arranged in each two positioning blocks 11 through bearings, the side edges of the two positioning blocks 11 are fixedly provided with motors 14, the output shafts of the two motors 14 are fixedly connected with one ends of the two threaded rods 12 respectively, the upper surface of the frame 1 is provided with dust pushing plates 13 in a sliding manner through the two threaded rods 12, and two sides of the dust pushing plates 13 are in threaded connection with the two threaded rods 12;

after the sewing is finished, a user can drive the threaded rod 12 to rotate through the two motors 14 by starting the two motors 14, and then drive the dust pushing plate 13 to translate so as to push impurities such as thread end dust on the surface of the frame 1 to one side through threaded connection between the threaded rod 12 and the dust pushing plate 13, so that the user can clean conveniently.

The working principle of the sewing machine with the broken thread structure provided by the utility model is as follows;

the first step: when a user sews cloth through the sewing machine main body 2, the user can place a plurality of thread cylinders with different colors above the thread coil 3 through the positioning rod 4, then the user can freely select the thread cylinder for sewing in the sewing process, and the user only needs to rotate the crank rotating rod 7, and can drive the thread coil 3 to rotate through the meshing transmission between the two bevel gears 5 to adjust the thread cylinder position.

And a second step of: after the user selects the thread cylinder, the thread passes through the thread transmission seat 8 and finally is connected with the lower part of the sewing machine main body 2 to carry out sewing treatment on the cloth, after the sewing treatment is finished, the user can start the small motor 9, and the small motor 9 can drive the blade 10 to rotate after being started, so that the thread can be automatically sheared;

and a third step of: after the sewing is finished, a user can drive the threaded rod 12 to rotate through the two motors 14 by starting the two motors 14, and then drive the dust pushing plate 13 to translate so as to push impurities such as thread end dust on the surface of the frame 1 to one side through the threaded connection between the threaded rod 12 and the dust pushing plate 13.

Compared with the related art, the sewing machine with the broken wire structure has the following beneficial effects: the user places a plurality of different colours's bobbin in the top of drum 3 through locating lever 4, and later the user can freely select the bobbin to sew at the in-process of sewing usefulness, and the user only need rotate crank bull stick 7, can drive drum 3 through the meshing transmission between two helical gears 5 and rotate the adjustment bobbin position to the user uses.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a sewing machine with broken string structure, includes frame (1), its characterized in that, the upper surface of frame (1) is fixed with sewing machine main part (2), locating shaft (6) are installed through the bearing rotation to the inside of sewing machine main part (2), the upper surface of locating shaft (6) is fixed with drum (3), crank bull stick (7) are installed through the bearing rotation to the inside of sewing machine main part (2), the one end of crank bull stick (7) and the one end of locating shaft (6) all are fixed with helical gear (5), two be the meshing between helical gear (5) and connect, the upper surface equidistance of drum (3) is fixed with a plurality of locating levers (4).

2. The sewing machine with the broken thread structure according to claim 1, characterized in that a thread transferring seat (8) is fixed on the upper surface of the sewing machine body (2), and a small motor (9) is fixed on one side of the thread transferring seat (8).

3. A sewing machine with a broken thread structure according to claim 2, characterized in that the blade (10) is fixed outside the output shaft of the small motor (9) and at the side of the thread-transferring seat (8).

4. A sewing machine with a broken thread structure according to claim 3, characterized in that the positioning blocks (11) are fixed on the outer walls of both sides of the frame (1), and the number of the positioning blocks (11) is four.

5. The sewing machine with the broken thread structure according to claim 4, wherein each two positioning blocks (11) is rotatably provided with a threaded rod (12) through a bearing, wherein the side edges of the two positioning blocks (11) are respectively fixed with a motor (14), and the output shafts of the two motors (14) are respectively fixedly connected with one ends of the two threaded rods (12).

6. Sewing machine with broken thread structure according to claim 5, characterized in that the upper surface of the frame (1) is slidably equipped with a dust-pushing plate (13) by means of two threaded rods (12), both sides of the dust-pushing plate (13) being screwed with the two threaded rods (12).