CN219410153U

CN219410153U - Inner shuttle frame adjusting device and sewing machine

Info

Publication number: CN219410153U
Application number: CN202320687391.3U
Authority: CN
Inventors: 刘征宇; 奥智; 李家豪; 李保青
Original assignee: Jack Technology Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-25
Anticipated expiration: 2033-03-31

Abstract

The utility model provides an inner shuttle frame adjusting device, wherein an adjusting positioning groove is formed in an inner shuttle frame, the adjusting device comprises a connecting part and a gear, a positioning hook and a rack are respectively arranged on the connecting part, and the positioning hook is clamped with the adjusting positioning groove; the gear is used for meshing transmission with the rack and is coaxially connected with a rotating column; the inner shuttle frame can be driven to rotate around the axis of the inner shuttle frame by rotating the rotating column. The application also provides a sewing machine comprising the adjusting device. The beneficial effect of this application lies in, need not to carry out too much change to current sewing machine structure, can perfect adaptation current rotating shuttle, through rack and pinion's transmission mode, cooperation column spinner and scale can adjust interior shuttle frame's circumference position accurately for interior shuttle frame position's change is controllable and reliable, convenient to use is high-efficient.

Description

Inner shuttle frame adjusting device and sewing machine

Technical Field

The application relates to the technical field of sewing machines, in particular to an inner shuttle frame adjusting device and a sewing machine.

Background

The rotating shuttle is an important component part of a thread hooking mechanism of a sewing machine, and is formed by combining an outer shuttle frame 1 and an inner shuttle frame 2, wherein the inner shuttle frame 2 is arranged on the inner side of the outer shuttle frame 1 and is matched with a guide groove in the outer shuttle frame 1 through a guide rail on the outer wall of the inner shuttle frame. In the sewing process, when the needle 5 is lifted with thread to puncture the sewing material to form a thread loop, the shuttle point on the outer shuttle frame 1 hooks the thread loop on the side surface of the needle 5, and a lock stitch is formed by bypassing the bottom thread in the shuttle center of the inner shuttle frame 2, so that the aim of sewing is fulfilled.

In the prior art, an adjusting and positioning groove 21 is formed in the inner shuttle frame 2, a positioning hook is arranged on a frame of the sewing machine, and the circumferential position of the inner shuttle frame 2 is determined by the clamping of the positioning hook and the adjusting and positioning groove 21. Because the positioning hook and the frame are locked through the screw, every time the circumferential position of the inner shuttle frame 2 needs to be adjusted, the adjustment is troublesome when better sewing effect is realized, and a new inner shuttle frame adjusting device needs to be arranged.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present application is to provide an inner bobbin holder adjusting device, which efficiently and conveniently determines the circumferential position of the inner bobbin holder.

The utility model provides an inner shuttle frame adjusting device, wherein an adjusting positioning groove is formed in an inner shuttle frame, the adjusting device comprises a connecting part and a gear, a positioning hook and a rack are respectively arranged on the connecting part, and the positioning hook is clamped with the adjusting positioning groove; the gear is used for meshing transmission with the rack and is coaxially connected with a rotating column; the inner shuttle frame can be driven to rotate around the axis of the inner shuttle frame by rotating the rotating column.

Preferably, the connecting part is provided with a guide groove, a guide pin is arranged in the guide groove in a penetrating way, and the guide pin is fixed in the sewing machine and is in sliding fit with the guide groove.

Preferably, the rotary column is provided with scales or pointers.

The application also provides a sewing machine comprising the adjusting device.

The beneficial effect of this application lies in, need not to carry out too much change to current sewing machine structure, can perfect adaptation current rotating shuttle, through rack and pinion's transmission mode, cooperation column spinner and scale can adjust interior shuttle frame's circumference position accurately for interior shuttle frame position's change is controllable and reliable, convenient to use is high-efficient.

Drawings

FIG. 1 is a schematic illustration of the relative positions of a conventional rotating shuttle and needle;

FIG. 2 is a schematic diagram of the cooperation of a conventional rotating shuttle with the present adjusting and positioning device;

fig. 3 is a schematic structural view of the adjusting and positioning device of the present application.

Description of element numbers:

1. outer shuttle frame

2. Inner shuttle frame

21. Adjusting positioning groove

31. Connecting part

311. Guide groove

32. Positioning hook

33. Rack bar

41. Gear wheel

42. Rotary column

421. Graduation scale

5. Machine needle

Detailed Description

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to be limiting.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

For convenience of description, as shown in fig. 1, in the following embodiment, the direction in which the axis of the inner bobbin holder 2 extends is defined as the left-right direction, the direction in which the needle 5 extends is defined as the up-down direction, and the directions perpendicular to the left-right direction and the up-down direction are defined as the front-back direction.

As shown in fig. 1 and 2, an adjusting and positioning groove 21 is formed on the outer edge of the inner bobbin holder 2. As shown in fig. 2 and 3, an inner bobbin adjusting device provided in the present application includes a connecting portion 31 and a gear 41. The connecting portion 31 is provided with a positioning hook 32 engaged with the adjustment positioning groove 21, and a rack 33. Specifically, the positioning hooks 32 and the racks 33 are provided at both ends of the connection portion 31, respectively, and a person skilled in the art can adjust the positions of both on the connection portion 31 as needed. The gear 41 is used for meshing transmission with the rack 33, and is coaxially connected with a rotary column 42. The maintenance personnel rotates the rotating column 42, can drive the connecting part 31 to linearly move along the front-back direction through the gear 41 and the rack 33, and drive the inner shuttle frame 2 to rotate around the axis of the inner shuttle frame 2 through the positioning hook 32, so as to change the circumferential position of the inner shuttle frame 2.

Further, in order to avoid the deflection of the connecting portion 31, the connecting portion 31 is provided with a guide groove 311 extending straight in the front-rear direction, the guide groove 311 is specifically a slotted hole, a guide pin is inserted inside, and the guide pin is fixed in the sewing machine and is in sliding fit with the guide groove 311. The guide pin can restrict the displacement of the connecting portion 31 in the up-down direction and the left-right direction, and allows only the connecting portion 31 to move linearly in the front-rear direction.

The gear 41 may be disposed on the left or right side of the rack 33, or may be disposed below the rack 33. The radial force applied when the gear 41 rotates pushes up the rack 33, further limiting the displacement of the connecting portion 31 in the up-down direction.

As shown in fig. 2 and 3, the rotary column 42 is provided with scales 421 distributed along the circumferential direction thereof, the scales 421 can be designed and divided according to the machine needle types, and a number representing the machine needle type is marked near each scale line. The serviceman rotates the rotary column 42 according to the currently used needle model so that the circumferential position of the inner bobbin holder 2 satisfies the requirement of the current needle model. The design basis of the scale 421 is not limited, and one skilled in the art can also design according to other sewing related variables such as the thickness of the stitch.

Further, a pointer is provided on the sewing machine housing, and a maintenance person aligns the corresponding scale line with the pointer when rotating the rotary column 42, so that the adjustment is simpler, more convenient and more accurate. The scale can also be set on the casing by a person skilled in the art, and the pointer is set on the rotary column, so that the same technical effect can be achieved.

The application also provides a sewing machine comprising the adjusting device.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. An inner shuttle frame adjusting device is provided with an adjusting and positioning groove, which is characterized in that the adjusting device comprises a connecting part and a gear,

the connecting part is respectively provided with a positioning hook and a rack, and the positioning hooks are clamped with the adjusting positioning grooves;

the gear is used for meshing transmission with the rack and is coaxially connected with a rotating column;

the inner shuttle frame can be driven to rotate around the axis of the inner shuttle frame by rotating the rotating column.

2. The adjusting device according to claim 1, wherein the connecting portion is provided with a guide groove, a guide pin is arranged in the guide groove in a penetrating manner, and the guide pin is fixed in the sewing machine and is in sliding fit with the guide groove.

3. An adjustment device according to claim 1, characterized in that the swivel post is provided with graduations or pointers.

4. A sewing machine comprising an adjustment device according to any one of claims 1-3.