CN214496738U

CN214496738U - Thread cutting transmission structure of sewing equipment

Info

Publication number: CN214496738U
Application number: CN202120261727.0U
Authority: CN
Inventors: 叶邦晓; 薛秀尧; 胡义斌
Original assignee: Zhejiang Lejiang Machine Co ltd
Current assignee: Zhejiang Lejiang Machine Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-10-26
Anticipated expiration: 2031-01-30

Abstract

A thread cutting transmission structure of a sewing device. The thread cutting transmission mechanism mainly solves the problems that the overall structure of the existing thread cutting transmission mechanism of the sewing machine is complex and the cost is high. The method is characterized in that: the transmission mechanism comprises a presser foot lifting lever (31) and a presser foot lifting crank (32) which is rotatably arranged in the shell of the sewing machine, the thread cutting crank is driven by the transmission piece to move, and the thread cutting crank is movably connected with the presser foot lifting lever. The utility model provides a thread trimming transmission structure of sewing equipment, simple structure and convenient use.

Description

Thread cutting transmission structure of sewing equipment

Technical Field

The utility model relates to a sewing machine field, concretely relates to sewing machine's trimming transmission structure.

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.

The existing thread cutting transmission mechanism of the sewing machine has a complex integral structure and higher cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a trimming transmission structure of sewing equipment, the trimming transmission overall structure who has mainly solved present sewing machine is more complicated, and the cost is also than higher problem moreover.

The utility model discloses a concrete implementation scheme does:

the utility model provides a sewing equipment's trimming transmission structure, includes cutter and the driving medium of being connected with the power supply, the driving medium passes through drive mechanism and drives the cutter activity drive mechanism includes trimming pull rod and cutter pivot, still includes the rotatable trimming crank of installing in sewing equipment shell, trimming crank by the driving medium drives the activity, trimming crank with the trimming pull rod is connected, the trimming pull rod is used for driving the cutter pivot is rotated.

The cutter rotating shaft is provided with a connecting seat, and the wire cutting pull rod is connected with the connecting seat.

The wire cutting pull rod is a universal connecting rod.

The transmission piece is a cam.

The thread cutting crank is provided with a roller, and the cam drives the thread cutting crank to move by pushing the roller.

The middle end of the trimming crank is provided with a rotating shaft, and the roller is sleeved on the rotating shaft.

The utility model has the advantages that: the utility model provides a trimming transmission structure of sewing equipment, simple structure, easy dismounting.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a perspective view of an embodiment of the present invention.

Fig. 3 is an exploded view of an embodiment of the present invention and a sewing machine.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, a trimming transmission structure of sewing equipment, includes cutter 1 and driving medium 2 of being connected with the power supply, the driving medium passes through drive mechanism and drives the cutter activity, drive mechanism includes trimming pull rod 31 and cutter pivot 32, still includes rotatable trimming crank 33 of installing in the sewing equipment casing, trimming crank by the driving medium drives the activity, trimming crank with the trimming pull rod is connected, the trimming pull rod is used for driving the cutter pivot rotates. As one of the alternatives, the cutting knife is a movable knife and is mounted on a movable knife rest which is mounted on a cutting knife rotating shaft, the cutting knife rest is driven to rotate when the cutting knife rotating shaft rotates, the power source can be a motor, the motor can drive a transmission part to rotate in a key transmission mode and the like when rotating, the transmission part drives a thread cutting crank to interact, the thread cutting crank drives the cutting knife rotating shaft to move, on the other hand, a reset torsion spring 30 is arranged on the cutting knife rotating shaft and is used for resetting, and a thread cutting rotating shaft 81 is arranged on the thread cutting crank and is used for being rotatably connected with a sewing equipment shell.

In this embodiment, as shown in the figure, a connecting seat 321 is provided on the cutter rotating shaft, and the wire cutting pull rod is connected with the connecting seat.

In this embodiment, as shown in the figure, the wire cutting pull rod is a universal connecting rod. The transmission is more stable, and the use effect is better.

In this embodiment, the transmission member is a cam, as shown in the figures. The disassembly and the assembly are more convenient.

In this embodiment, as shown in the figure, the thread cutting crank is provided with a roller 331, and the cam drives the thread cutting crank to move by pushing the roller. The cam is in sliding fit with the roller, and the cam can also push the roller to enable the thread cutting crank to move, so that the structure is simple, and the use is convenient.

In this embodiment, as shown in the figure, the middle end of the thread cutting crank is provided with a rotating shaft 332, and the roller is sleeved on the rotating shaft. Simple structure, this pivot can install on the trimming crank through modes such as threaded connection.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a sewing equipment's trimming transmission structure, includes cutter (1) and driving medium (2) be connected with the power supply, the driving medium passes through drive mechanism and drives the cutter activity, its characterized in that: the transmission mechanism comprises a trimming pull rod (31) and a cutter rotating shaft (32), and further comprises a trimming crank (33) which is rotatably arranged in the sewing equipment shell, the trimming crank is driven by the transmission part to move, the trimming crank is connected with the trimming pull rod, and the trimming pull rod is used for driving the cutter rotating shaft to rotate.

2. The thread trimming transmission structure of a sewing machine according to claim 1, wherein: the cutter rotating shaft is provided with a connecting seat (321), and the wire cutting pull rod is connected with the connecting seat.

3. The thread trimming transmission structure of a sewing machine according to claim 1, wherein: the wire cutting pull rod is a universal connecting rod.

4. The thread trimming transmission structure of a sewing machine according to claim 1, wherein: the transmission piece is a cam.

5. The thread trimming transmission structure of a sewing machine according to claim 4, wherein: the thread cutting crank is provided with a roller (331), and the cam drives the thread cutting crank to move by pushing the roller.

6. The thread trimming transmission structure of a sewing machine according to claim 5, wherein: the middle end of the trimming crank is provided with a rotating shaft (332), and the roller is sleeved on the rotating shaft.