CN219117727U

CN219117727U - Sewing machine with thread cutting function

Info

Publication number: CN219117727U
Application number: CN202223260568.6U
Authority: CN
Inventors: 胡振飚
Original assignee: Jiangsu Hongbao Sporting Goods Co ltd
Current assignee: Jiangsu Hongbao Sporting Goods Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-02
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a sewing machine with a thread cutting function, which comprises a sewing mechanism, wherein a thread cutting assembly is arranged on the sewing mechanism, the thread cutting assembly comprises a blade, the blade is arranged on a boss at one side of the working end of the sewing mechanism, and the blade point of the blade faces to the sewing advancing direction. The utility model can cut off the sewing thread after sewing is finished, the cutting position is fixed, the time consumed by taking and placing tools is reduced, and the sewing efficiency is improved.

Description

Sewing machine with thread cutting function

Technical Field

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

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. In the football production process, a plurality of leather sheets are required to be sewn to form a football shell, and after the sewing is finished, sewing threads are required to be cut off to flow into the following process for production.

Most sewing machines do not have a thread cutting function, such as chinese patent CN202010479701.3, patent name: sewing machine, chinese patent CN201310461780.5, patent name: a sewing machine can finish sewing operation, but after finishing sewing, operators need to cut off the sewing thread through tools such as thread shears or blades, a certain time is required for taking and placing the tools, the sewing efficiency is affected, and the tools are easy to lose.

Disclosure of Invention

The utility model aims at: the utility model provides a sewing machine with tangent line function can cut off the sewing thread after the sewing is finished, cuts off the fixed time that the instrument consumed is got to the position, improves sewing efficiency.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a sewing machine with tangent line function, includes sewing mechanism, be equipped with the tangent line subassembly on the sewing mechanism, the tangent line subassembly includes the blade, the blade sets up on the boss of sewing mechanism work end one side, the blade point of blade is facing to the direction of advance of making.

According to a further improvement scheme, a protective knife rest is fixedly arranged on the boss, and the blade is detachably connected to the protective knife rest.

According to a further improved scheme, the protective knife rest comprises long rods and short rods arranged on two sides of the long rods, the blade is located on the long rods, protective rods are arranged between the two short rods, one end of each protective rod is hinged to the upper end of one short rod through a torsion spring, and the other end of each protective rod is movably connected with the other short rod.

According to a further improvement scheme, a protruding block is arranged at the upper end of a short rod movably connected with the protective rod, and a groove abutting against the lower end of the protruding block is arranged at the movable end of the protective rod.

According to a further improved scheme, a connecting groove is formed in the upper end of a short rod hinged to the protective rod, a pin shaft hinged to the protective rod is arranged in the connecting groove, the torsion spring is sleeved on the pin shaft, a torsion arm at one end of the torsion spring is connected with the side wall of the connecting groove, and a torsion arm at the other end of the torsion spring is connected with the protective rod and enables the groove to be abutted against the protruding block.

A still further development of the utility model is that the blade is located between two stubs.

The utility model has the beneficial effects that:

according to the utility model, the boss is arranged at one side of the working end of the sewing mechanism, the thread cutting assembly is arranged on the boss, the ball cover can be cut off quickly after sewing is finished, the thread cutting position is fixed, compared with the traditional cutting mode by taking a tool, the taking and placing time of the tool is reduced, the thread cutting efficiency is greatly accelerated, and the thread cutting assembly is fixed on the boss, compared with the use of small tools such as thread shears and the like, the thread cutting assembly is not easy to lose.

Secondly, the knife edge can be protected when the knife is not used by arranging the protection knife rest, so that the knife edge is prevented from being scratched by the misoperation of an operator, and the use safety is improved.

And one end of the protective rod is hinged to the upper end of one short rod through a torsion spring, and the other end of the protective rod is movably connected with the other short rod. The gap for the sewing thread to pass through can be generated by pressing the protective rod, the opening speed is high, the automatic reset can be realized, the thread cutting operation can be finished by only pressing the protective rod and pulling the sewing thread during thread cutting, and the sewing efficiency is improved.

Fourth, the utility model can be connected to the long rod through the blade in a detachable way, and can be replaced in time when the blade becomes blunt after long-time use, so that the disassembly is convenient.

Description of the drawings:

fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic front view of the tangential component of the present utility model.

Fig. 3 is a schematic top view of the tangential component of the present utility model.

In the figure, a 1-sewing mechanism, a 2-thread cutting assembly, a 3-blade, a 4-boss, a 5-long rod, a 6-short rod, a 7-protective rod, an 8-lug, a 9-groove, a 10-connecting groove, an 11-pin shaft and a 12-torsion spring.

The specific embodiment is as follows:

the utility model is further elucidated below in connection with the drawings and the specific embodiments.

Example 1: as can be seen from fig. 1 to 2, the sewing machine with the thread cutting function comprises a sewing mechanism 1, wherein a thread cutting component 2 is arranged on the sewing mechanism 1, the thread cutting component 2 comprises a blade 3, the blade 3 is arranged on a boss 4 at one side of the working end of the sewing mechanism 1, and the blade of the blade 3 faces the sewing advancing direction. Preferably, the blade 3 is located below the working end of the sewing mechanism 1.

The boss 4 is fixedly provided with a protection tool rest, and the blade 3 is detachably connected to the protection tool rest. The protection knife rest can block the upper part of the knife point when the knife blade 3 is not used, and the scratch caused by the false touch of workers is avoided. The protection tool rest is fixed on the boss 4 through bolts.

The protection knife rest comprises a long rod 5 and short rods 6 arranged on two sides of the long rod 5, the blade 3 is positioned on the long rod 5, a protection rod 7 is arranged between the two short rods 6, one end of the protection rod 7 is hinged to the upper end of one short rod 6 through a torsion spring 12, and the other end of the protection rod is movably connected with the other short rod 6. Preferably, the long rod 5 is provided with a knife slot, the knife back of the knife blade 3 is clamped in the knife slot, the long rod 5 is provided with at least one screw hole penetrating through the knife slot, and the screw hole is internally connected with a locking bolt for further fixing the knife blade 3.

The upper end of the short rod 6 movably connected with the protective rod 7 is provided with a bump 8, and the movable end of the protective rod 7 is provided with a groove 9 which is abutted to the lower end of the bump 8.

The upper end of the short rod 6 hinged with the protection rod 7 is provided with a connecting groove 10, a pin shaft 11 hinged with the protection rod 7 is arranged in the connecting groove 10, a torsion spring 12 is sleeved on the pin shaft 11, a torsion arm at one end of the torsion spring is connected with the side wall of the connecting groove 10, and a torsion arm at the other end of the torsion spring is connected with the protection rod 7 and enables the groove 9 to be abutted against the convex block 8. The pin shaft 11 is fixedly arranged in the connecting groove 10, and the protection rod is hinged on the pin shaft 11. The blade 3 is located between two stubs 6.

The working principle of the sewing machine with the thread cutting function provided by the utility model is as follows: when the ball skin sewing is finished, the sewing thread is pulled to the position of the thread cutting assembly 2, the protective rod 7 is pressed down to enable the groove 9 at the end part of the protective rod 7 to be separated from the convex block 8, a gap capable of accommodating the passing of the sewing thread is generated, the sewing thread is pulled down from the two sides of the blade 3 to cut off the sewing thread, and after cutting off, the protective rod 7 is reset by the elastic force of the torsion spring 12, so that thread cutting operation is completed.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims

1. The utility model provides a sewing machine with tangent line function, includes sewing mechanism (1), its characterized in that: be equipped with tangent line subassembly (2) on sewing mechanism (1), tangent line subassembly (2) include blade (3), blade (3) set up on boss (4) of sewing mechanism (1) work end one side, the blade of blade (3) is facing to the direction of making progress, fixed being equipped with the protection knife rest on boss (4), blade (3) detachable connection is in on the protection knife rest, protection knife rest includes stock (5) and sets up quarter butt (6) of stock (5) both sides, blade (3) are located on stock (5), be equipped with between two quarter butt (6) guard bar (7), the one end of guard bar (7) articulates in the upper end of one of them quarter butt (6) through torsional spring (12), the other end and another quarter butt (6) swing joint.

2. A sewing machine having a thread cutting function as recited in claim 1, wherein: the upper end of a short rod (6) movably connected with the protective rod (7) is provided with a bump (8), and the movable end of the protective rod (7) is provided with a groove (9) which is abutted to the lower end of the bump (8).

3. A sewing machine having a thread cutting function as claimed in claim 2, wherein: the upper end of a short rod (6) hinged with the protection rod (7) is provided with a connecting groove (10), a pin shaft (11) hinged with the protection rod (7) is arranged in the connecting groove (10), a torsion spring (12) is sleeved on the pin shaft (11), a torsion arm at one end of the torsion spring is connected with the side wall of the connecting groove (10), and a torsion arm at the other end of the torsion spring is connected with the protection rod (7) and enables the groove (9) to be abutted on the convex block (8).

4. A sewing machine having a thread cutting function as recited in claim 1, wherein: the blade (3) is positioned between two short rods (6).