CN216712434U

CN216712434U - Sewing machine with thread cutting function

Info

Publication number: CN216712434U
Application number: CN202123159853.4U
Authority: CN
Inventors: 陈良育; 苏瑞华; 梁艺飞
Original assignee: Zhongshan Gangyuan Technology Corp
Current assignee: Zhongshan Gangyuan Technology Corp
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-10
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a sewing machine with a thread cutting function, which comprises a machine base, wherein a machine head is arranged on the machine base, the machine head is provided with an outer shell, a crack is formed on one side of the machine head of the outer shell, a gap communicated with the crack is formed in the side wall of one side of the crack, and a blade for cutting off threads is arranged on the inner side of the gap. According to the utility model, the gap is arranged in the original seam of the machine head, and the blade is arranged in the gap, so that the thread end can be pulled into the seam, and the thread end is cut off by the blade in the gap, the structure is simple, the use is convenient, and no additional scissors or cutters are required; and because the blade sets up in the inboard of breach, can not appear the condition of incising the staff when using, it is safer to use.

Description

Sewing machine with thread cutting function

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a sewing machine with a thread cutting function.

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 sewing machine usually needs to cut off overlong thread ends before or after being used, and the thread ends are cut mainly through equipped scissors or blades at present, so that the sewing machine is inconvenient to use and easily causes hand scratches.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the sewing machine with the thread cutting function, which utilizes the original seam of the sewing machine to arrange the blade, has simple structure and convenient use, cannot cause the injury to hands, and is safer to use.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a sewing machine with secant function, includes the frame, be equipped with the aircraft nose on the frame, the aircraft nose has the shell body, the shell body is formed with the crack in one side of aircraft nose, one side lateral wall of crack is equipped with the breach that communicates with the crack, the inboard of breach is equipped with and is used for the blade of cutting off the line.

As a preferred scheme, the machine head is provided with a needle, and the machine base below the needle is provided with a workbench.

As a preferable scheme, a crack on the side surface of the machine head extends vertically, an opening for a thread to enter is formed at the lower end of the crack, and the notch is formed at one end, close to the needle, of the crack.

As a preferred scheme, the inner side of the notch is provided with a blade fixing component, the blade fixing component comprises a blade holder arranged below the inner side of the notch and a pressing part arranged on one side of the blade holder, when the blade fixing component is assembled, the lower end of the blade is connected with the blade holder, and the pressing part is pressed against the surface of one side, far away from the notch, of the blade.

Preferably, the pressing member has a rod portion and a ring portion integrally connected to the rod portion, and when the cutting insert is assembled, the screw penetrates through the ring portion to fix the pressing member to the outer housing, and the free end of the rod portion presses against the cutting insert.

As a preferred scheme, the cutter holder is provided with a positioning groove with an opening facing to one side of the notch, and the lower end of the blade is abutted to the positioning groove during assembly.

As a preferable scheme, a protruding strip extending transversely is arranged below the inner side of the notch, the tool apron is located below the protruding strip, when the tool apron is assembled, the protruding strip abuts against the surface of one side, close to the notch, of the blade, and the abutting point of the abutting piece and the blade is located above the protruding strip.

Preferably, the notch has a bottom wall and a guiding sidewall above the bottom wall, and the guiding sidewall extends from top to bottom towards an end of the bottom wall away from the gap.

Preferably, the side of the blade edge far away from the crack protrudes above the bottom wall of the notch.

Preferably, the cutting edge of the blade is inclined downwardly from the inside to the outside.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, particularly, the gap is arranged in the original seam of the machine head, and the blade is arranged in the gap, so that the thread end can be pulled into the seam, and the thread end is cut off by utilizing the blade in the gap, the structure is simple, the use is convenient, and no additional scissors or cutters are required; and because the blade sets up in the inboard of breach, can not appear the condition of incising the staff when using, it is safer to use.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions attained thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is an assembled structural view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic diagram of an inner structure of a notch according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view at B in fig. 3.

The attached drawings indicate the following:

1. base 2, machine head 21 and outer shell

22. Convex strip 3, workbench 4 and crack

5. Notch 51, bottom wall 52, guide side wall

6. Blade 7, tool apron 71, positioning groove

8. Pressing member 81, rod 82, and ring portion

9. And (4) screws.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-4, a sewing machine with thread cutting function comprises a machine base 1, wherein a machine head 2 is arranged on the machine base 1, a machine needle is arranged on the machine head 2, and a workbench 3 is arranged on the machine base 1 below the machine needle. The aircraft nose 2 has shell body 21, shell body 21 is formed with crack 4 in one side of aircraft nose 2, one side lateral wall of crack 4 is equipped with the breach 5 with crack 4 intercommunication, the inboard of breach 5 is equipped with and is used for the blade 6 of cutting off the line.

Specifically, a crack 4 on the side surface of the machine head 2 vertically extends, an opening for a thread to enter is formed at the lower end of the crack 4, and the notch 5 is formed at one end of the crack 4 close to the needle. The inner side of the notch 5 is provided with a blade fixing component, the blade fixing component comprises a blade holder 7 arranged below the inner side of the notch 5 and a pressing part 8 arranged on one side of the blade holder 7, during assembly, the lower end of the blade 6 is connected with the blade holder 7, and the pressing part 8 is pressed against the surface of one side, far away from the notch 5, of the blade 6. In this embodiment, the pressing member 8 has a rod portion 81 and a ring portion 82 integrally connected to the rod portion 81, and when assembling, the screw 9 passes through the ring portion 82 to fix the pressing member 8 on the outer housing 21, and the free end of the rod portion 81 presses against the blade 6. The cutter holder 7 is provided with a positioning groove 71 with an opening facing one side of the notch 5, the positioning groove 71 is L-shaped, and the lower end of the blade 6 is abutted to the positioning groove 71 during assembly. The lower part of the inner side of the notch 5 is provided with a convex strip 22 extending transversely, the tool apron 7 is positioned below the convex strip 22, during assembly, the convex strip 22 is abutted against the surface of one side of the blade 6 close to the notch 5, and the abutting point of the abutting piece 8 and the blade 6 is positioned above the convex strip 22.

In the present invention, the notch 5 has a bottom wall 51 and a guiding sidewall 52 located above the bottom wall 51, the guiding sidewall 52 extends from top to bottom to the end of the bottom wall 51 far away from the gap 4, and the end of the bottom wall 51 far away from the gap 4 is inclined from top to bottom. The cutting edge of the blade 6 is inclined downwards from inside to outside, so that the side of the cutting edge of the blade 6 far away from the crack 4 is protruded above the bottom wall 51 of the notch 5. When the thread is to be cut, the thread end is manually pulled up, the thread enters the crack 4 from the opening at the lower end of the crack 4, when the part of the thread is higher than the position of the notch 5, the thread end is pulled towards one side of the notch 5, so that the thread enters the notch 5 along the guide side wall 52, the thread end is pulled downwards after the thread enters the notch 5, and the overlong thread end can be cut off through the blade protruding out of the bottom wall 51 of the notch 5, and the use is convenient.

In conclusion, the gap is arranged in the original seam of the machine head, and the blade is arranged in the gap, so that the thread end can be pulled into the seam, and the thread end is cut off by the blade in the gap, the structure is simple, the use is convenient, and no additional scissors or cutters are needed; and because the blade sets up in the inboard of breach, can not appear the condition of incising the staff when using, it is safer to use.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, so that any modifications, equivalents, improvements, etc. made to the above embodiment according to the present invention are within the scope of the present invention.

Claims

1. The utility model provides a sewing machine with secant function, includes the frame, be equipped with the aircraft nose on the frame, its characterized in that, the aircraft nose has the shell body, the shell body is formed with the crack in one side of aircraft nose, one side lateral wall of crack is equipped with the breach with the crack intercommunication, the inboard of breach is equipped with and is used for the blade with the line cut-off.

2. The sewing machine with thread cutting function as claimed in claim 1, wherein a needle is provided on the head, and a table is provided on the bed below the needle.

3. The sewing machine with thread cutting function as claimed in claim 2, wherein the seam on the side of the machine head extends vertically, the lower end of the seam is formed with an opening for the thread to enter, and the notch is arranged at one end of the seam close to the needle.

4. The sewing machine with thread cutting function as claimed in claim 1, wherein a blade fixing member is provided at an inner side of the notch, the blade fixing member includes a blade seat provided below the inner side of the notch and a pressing member provided at one side of the blade seat, and when assembled, a lower end of the blade is connected to the blade seat, and the pressing member is pressed against a side surface of the blade away from the notch.

5. The sewing machine with thread cutting function as claimed in claim 4, wherein the pressing member has a rod portion and a ring portion integrally connected to the rod portion, and when assembled, a screw is passed through the ring portion to fix the pressing member to the outer housing, and a free end of the rod portion is pressed against the blade.

6. The sewing machine with thread cutting function as claimed in claim 4 or 5, wherein the knife holder is provided with a positioning groove with an opening facing to one side of the notch, and the lower end of the blade is abutted against the positioning groove during assembly.

7. The sewing machine with thread cutting function as claimed in claim 6, wherein a laterally extending protrusion is provided below an inner side of the notch, the tool seat is provided below the protrusion, the protrusion abuts against a side surface of the blade adjacent to the notch when the sewing machine is assembled, and the abutting point of the pressing member and the blade is provided above the protrusion.

8. The sewing machine with thread cutting function according to claim 1 or 3, wherein the notch has a bottom wall and a guiding sidewall above the bottom wall, and the guiding sidewall extends from top to bottom toward an end of the bottom wall away from the seam.

9. The sewing machine with thread cutting function as claimed in claim 7, wherein the side of the blade facing away from the slit protrudes above the bottom wall of the notch.

10. The sewing machine with thread cutting function according to claim 9, wherein the cutting edge of the blade is inclined downward from inside to outside.