CN110714283A - Point location pen device of sewing machine - Google Patents

Abstract

The invention provides a pointing pen device of a sewing machine, comprising an air cylinder, a pointing pen and a machine head. The cylinder is fixedly connected to the machine head through a mounting plate, a pointing pen is arranged in the cylinder, and a lower end of the pointing pen is provided. A spring is provided, and the lower end of the cylinder rod is provided with a pen cap to restrict the evacuation of the point pen. Compared with the prior art, the present invention has the following beneficial effects: through the preset instructions of the electric control system, automatic sewing plus point and line marking can be achieved. After completing the previous process, the automatic point device will draw a point at the predetermined position instead of manual labor, which is accurate and reliable. This device is more suitable for general automatic sewing equipment such as pattern machines and template machines. Combining drawing points, one machine has multiple functions. As an auxiliary mechanism of the sewing machine, the device has low cost, simple structure and high practicability.

Description

A point pen device for a sewing machine

technical field

The invention relates to a point pen device of a sewing machine, which belongs to the technical field of a point pen device of a sewing machine.

Background technique

In the process of sewing, it is often encountered that after completing the previous process, it is necessary to draw a point on the predetermined position of the sewing material as a mark for the next sewing process. Usually, the most direct method is to manually use the point Stroke, this artificial point method has a simple structure.

The point pen device of the existing sewing machine has low efficiency and is not standard enough, and it is also operated by a special point point machine, but the cost is high.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a point pen device for a sewing machine, so as to solve the problems raised in the above-mentioned background technology. The present invention achieves fully automatic sewing plus dot and dash lines through the preset instructions of the electronic control system. function, and through the automatic point device, instead of manually drawing a point at a predetermined position.

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a point pen device for a sewing machine, comprising a cylinder, a point pen and a machine head, the cylinder is fixedly connected to the machine head through a mounting plate, the cylinder A pointing pen is arranged inside, the lower end of the pointing pen is provided with a spring, and the lower end of the cylinder rod is provided with a cap to restrict the pointing pen from coming out.

Further, a cylinder rod is arranged inside the cylinder, a through hole is arranged inside the cylinder rod, and an external thread is arranged at the lower end of the cylinder.

Further, the point-pointing pen is actually a pen core, and the point-pointing pen includes a rod body, a round table, an end of the point-pointing pen and a pen tip, the rod body is provided with a spring, and the outer diameter of the rod is smaller than the inner diameter of the spring, so The point pen is also provided with a round table, the outer diameter of the round table is larger than the rod body and larger than the inner hole of the spring, and one end of the spring bears against the end face of the round table.

Further, the outer diameter of the spring is larger than the diameter of the through hole of the cylinder rod, and the other end of the spring bears against the end face of the cylinder rod.

Further, the cylinder needs to install a pen cap after the point pen is installed to prevent the point pen from coming out of the cylinder rod. Fully contact the inner side wall of the pen cap as the criterion, and ensure that the point pen has a certain elasticity.

Further, the hole at one end of the pen cap has a diameter smaller than the outer diameter of the end of the pointing pen, and the inner thread at the other end is matched with the outer screw at one end of the cylinder rod, and is fixed with a first nut after the position is determined.

Further, the mounting plate is provided with a long slot, the first screw passes through the cylinder mounting hole, and then passes through the long slot, and the cylinder and the mounting plate are fixed with a second nut, and the cylinder can move up and down along the long slot. , the mounting plate is fixed on the machine head by a second screw.

The beneficial effects of the present invention are as follows: the function of automatic sewing plus dots and lines can be achieved through the preset instructions of the electric control system. This kind of device is more suitable for general automatic sewing equipment such as pattern machine and template machine. It combines sewing and drawing dots, and one machine is multi-purpose. As an auxiliary mechanism of sewing machine, this device has low cost, simple structure and high practicability. .

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is an assembly schematic diagram of a point pen device of a sewing machine of the present invention;

2 is an exploded schematic view of a point pen device of a sewing machine of the present invention;

3 is a schematic diagram of the installation of a point pen in a point pen device of a sewing machine of the present invention;

4 is a schematic structural diagram of a paintbrush cylinder in a point-point pen device of a sewing machine according to the present invention;

5 is a schematic structural diagram of a pen cap in a point pen device of a sewing machine according to the present invention;

6 is a schematic structural diagram of a point pen in a point pen device of a sewing machine according to the present invention;

In the picture: 1-cylinder, 2-installation plate, 3-pen cap, 4-point pen, 5-first nut, 6-first screw, 7-spring, 8-machine head, 9-second nut, 10 -Second screw, 21-long slot, 31-internal thread, 32-round hole, 41-rod body, 42-round table, 43-point pen end, 44-pen tip, 101-cylinder rod, 102-through hole, 103 -External thread, 104-cylinder mounting hole.

Detailed ways

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

Please refer to FIGS. 1 to 6 , the present invention provides a technical solution: a point pen device for a sewing machine, comprising a cylinder 1 , a point pen 4 and a machine head 8 , and the cylinder 1 is fixedly connected to the machine head 8 through a mounting plate 2 The cylinder 1 is provided with a point pen 4, the lower end of the point pen 4 is provided with a spring 7, and the lower end of the cylinder rod 101 is provided with a cap 3 to restrict the point pen 4 from coming out.

The cylinder 1 is provided with a cylinder rod 101, the cylinder rod 101 is provided with a through hole 102, and the lower end of the cylinder 1 is provided with an external thread 103.

The point pen 4 is actually a pen core. The point pen 4 includes a rod body 41, a round table 42, a point pen end 43 and a pen tip 44. The rod body 41 is provided with a spring 7, and the outer diameter of the rod body 41 is smaller than that of the spring 7. The point pen 4 is also provided with a round table 42, the outer diameter of the round table 42 is larger than the rod body 41 and larger than the inner hole of the spring 7, and one end of the spring 7 bears against the end face of the round table 42.

The outer diameter of the spring 7 is larger than the diameter of the through hole 102 of the cylinder rod 101 , and the other end of the spring 7 bears against the end face of the cylinder rod 101 .

The cylinder 1 needs to install the pen cap 3 after the point pen 4 is installed to prevent the point pen 4 from coming out of the cylinder rod 101. The screwing length of the inner thread 31 of the pen cap 3 and the outer thread 103 of one end of the cylinder rod 101 is determined by the point pen 4. The end of the pen is in full contact with the inner side wall of the pen cap 3, and the point pen 4 is guaranteed to have a certain elasticity.

The hole at one end of the cap 3 has a diameter smaller than the outer diameter of the end 43 of the point pen, and the inner thread 31 at the other end is matched with the outer screw at one end of the cylinder rod 101 , and is fixed with the first nut 5 after the position is determined.

The mounting plate 2 is provided with a long groove 21, the first screw 6 passes through the cylinder mounting hole 104, and then passes through the long groove 21, and the cylinder 1 and the mounting plate 2 are fixed by the second nut 9, and the cylinder 1 can go up and down along the long groove 21. Moving, the mounting plate 2 is fixed on the handpiece 8 by the second screw 10 .

As an embodiment of the present invention: the air cylinder 1 is fixedly installed at the front end of the machine head 8 through the mounting plate 2. According to the thickness of the sewing material, the air cylinder 1 can be adjusted up and down along the long groove 21 of the installation plate 2, and the cylinder rod of the air cylinder 1 can be adjusted up and down. 101 is provided with a through hole 102 inside, the point pen 4 is penetrated inside the through hole 102, a spring 7 is arranged between the point pen 4 and the cylinder rod 101, one end of the spring 7 contacts the end of the cylinder rod 101, and the other end contacts the point. On the end face of the round table 42 of the pen 4, the round hole 32 of the pen cap 3 passes through the pen tip 44, the pen cap 3 is connected with the cylinder rod 101, and is fixed by the first nut 5. When in use, the cylinder 1 is under the ventilation effect of the solenoid valve, and the cylinder is closed. The rod 101 moves downward, the pen tip 44 contacts the fabric, and through the feeding action of the sewing machine, the point pen 4 makes a mark on the fabric, the fabric has an upward reaction force to the point pen 4, and compresses the spring 7, and at the same time the spring 7 There is also a force on the point pen 4, so that the tip 44 of the point pen 4 can fully contact the fabric, because the elasticity of the spring 7 makes the point pen 4 and the fabric in flexible contact, and will not cause damage to the point pen 4 and the fabric.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Technical personnel, within the scope of the technical solution of the present invention, can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above, but any content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (7)

1. The utility model provides a sewing machine's point location pen device, includes cylinder, point location pen and aircraft nose, its characterized in that: the cylinder is fixedly connected with the machine head through a mounting plate, the point location pen penetrates through the cylinder, a spring is arranged at the lower end of the point location pen, and a pen cap is arranged at the lower end of the cylinder rod to limit the point location pen to be separated.

2. The point location pen device of sewing machine according to claim 1, characterized in that: the cylinder is internally provided with a cylinder rod, a through hole is formed in the cylinder rod, and an external thread is arranged at the lower end of the cylinder.

3. The point location pen device of sewing machine according to claim 1, characterized in that: the utility model discloses a point location pen, including the body of rod, round platform, point location pen tip and nib, be provided with the spring on the body of rod, body of rod external diameter is less than the internal diameter of spring, the point location pen still is equipped with the round platform, the round platform external diameter is greater than the body of rod, and is greater than the spring hole, round platform terminal surface is withstood to spring one end.

4. The point location pen device of sewing machine according to claims 1-3, characterized in that: the outer diameter of the spring is larger than the diameter of the through hole of the air cylinder rod, and the other end of the spring abuts against the end face of the air cylinder rod.

5. The point location pen device of sewing machine according to claim 1, characterized in that: the air cylinder is provided with a pen cap after the point position pen is installed, the point position pen is prevented from falling off from the air cylinder rod, the screwing length of the internal thread of the pen cap and the external thread at one end of the air cylinder rod is based on the fact that the end part of the point position pen fully contacts the inner side wall of the pen cap, and certain elasticity is guaranteed to the point position pen.

6. The point location pen device of sewing machine according to claim 5, characterized in that: the aperture of one end hole of the pen cap is smaller than the outer diameter of the end part of the point location pen, the internal thread of the other end of the pen cap is matched with the external screw at one end of the air cylinder rod, and the pen cap is fixed by a first nut after the position is determined.

7. The point location pen device of sewing machine according to claim 1, characterized in that: the mounting plate is provided with an elongated slot, the first screw penetrates through the cylinder mounting hole and then penetrates through the elongated slot, the cylinder and the mounting plate are fixed through a second nut, the cylinder can move up and down along the elongated slot, and the mounting plate is fixed on the machine head through the second screw.

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