CN206941168U - A kind of paintbrush drive mechanism on sewing machine - Google Patents

Abstract

The utility model provides a brush driving mechanism on a sewing machine, which belongs to the technical field of sewing equipment. The utility model solves technical problems such as the inability to adjust the paintbrush driving mechanism on the existing sewing machine. The sewing machine includes a casing, on which a connecting plate is fixedly connected, and the brush driving mechanism includes a cylinder fixed on the connecting plate, the piston rod of the cylinder is arranged vertically downward, and the upper end of the cylinder has an adjusting sleeve capable of adjusting the stroke of the cylinder. ; The piston rod of the cylinder is connected with a vertically downward painting brush. In the utility model, the descending height of the piston rod of the cylinder is controlled by adjusting the stroke of the cylinder through the adjusting sleeve, and then the height of the brush is adjusted. The stroke adjustment range of the cylinder is relatively large, which can adapt to and meet the needs of different processing cloths and use environments. It is also very convenient.

Description

Brush drive mechanism on a sewing machine

technical field

The utility model belongs to the technical field of sewing equipment and relates to a brush driving mechanism on a sewing machine.

Background technique

In some sewing occasions, it is necessary to mark the processed fabrics during the sewing process to facilitate the sewing of the next process and ensure the correct sewing position; the traditional method is to draw manually by the operator, and a special layout is required Manpower and positions, and the requirements for the proficiency of the operators are relatively high. In order to save manpower, improve accuracy and automation, people have developed an automatic paintbrush device, which draws lines by setting a paintbrush device on the machine, but the existing brush device has the following defects: the height of the brush clamping is not easy to adjust. Low, the brush will directly hit the processed fabric when the cylinder moves, and the refill of the brush is easy to break, and may damage the processed fabric; on the contrary, if the clamping height of the brush is too high, the pen tip cannot touch the sewing material and cannot reach the line Effect.

Chinese patent (notification number: CN203569329U, publication date: 2014-04-30) discloses a sewing machine pointing device, including a cylinder, and a paintbrush holder driven by the cylinder rod of the cylinder to move up and down, on the paintbrush holder A paintbrush is installed, and the paintbrush moves up and down with the paintbrush holder. A cylinder rod guide device is installed on one side of the cylinder. The pen pointing device is clamped to the left side of the machine. It has the function of cushioning to prevent the refill of the brush from breaking easily. According to the edited pattern program, draw outlines and dots on the sewing object at will, so as to prepare for the sewing of the next process.

The pen pointing device in the above patent document can adjust the height difference of the paintbrush to a certain extent by setting a spring, but its adjustment range is very long and limited, and because the deformation and elasticity of the spring will affect the normal use of the paintbrush, the choice of spring force It is difficult to control, too little elasticity will lead to unclear and bright marking lines, and too much elasticity will cause damage to the nib or scratch the processed fabric.

Contents of the invention

The utility model aims at the above-mentioned problems existing in the existing technology, and provides a brush driving mechanism on a sewing machine. The technical problem to be solved by the utility model is: how to improve the stability and height adjustability of the brush on the sewing machine.

The purpose of this utility model can be achieved through the following technical solutions:

A brush driving mechanism on a sewing machine, the sewing machine includes a casing, and a connecting plate is fixedly connected to the casing, and it is characterized in that, the brush driving mechanism includes a cylinder fixed on the connecting plate, and the The piston rod is arranged vertically downward, and the upper end of the cylinder has an adjusting sleeve capable of adjusting the stroke of the cylinder; the piston rod of the cylinder is connected with a vertically downward paintbrush.

Its working principle is as follows: In the initial state, the piston rod of the cylinder is in the rising state. After the processing cloth is placed in place, the cylinder moves, the piston rod moves down with the animation pen, the tip of the brush contacts the processing cloth, and the processing cloth moves to realize marking Lines, marked by mechanical automation can save a lot of manpower and time costs, and it is more accurate and beautiful. The cylinder in this technical solution adopts a cylinder with adjustable stroke. By adjusting the stroke of the cylinder, the descending height of the piston rod of the cylinder is controlled, and the height of the brush is adjusted. The stroke adjustment range of the cylinder is large, so that it can adapt to and meet different processing materials and The needs of the use environment, and manual adjustment through the adjustment sleeve, the operation is also very convenient. In addition, the solid connection of the connecting plate and the cylinder to the paintbrush in this technical solution ensures the stability and reliability of the paintbrush when marking lines.

In the aforementioned brush drive mechanism on the sewing machine, the piston rod of the cylinder is screwed with a fine-adjustment nut and a connection sleeve, the fine-adjustment nut is fixedly connected with the connection sleeve, and the paint brush is connected with the connection sleeve. The fine-tuning nut and the connecting sleeve can be integrally formed. The fine-tuning nut has an internal thread, and the outer peripheral surface of the piston rod of the cylinder has an external thread. The two cooperate to form a threaded connection. By twisting the fine-tuning nut, the piston rod of the cylinder can be adjusted to be inserted into the connecting sleeve. The length of the pen can further change the height of the brush to achieve fine adjustment and make the adjustment more precise.

In the above-mentioned paintbrush drive mechanism on the sewing machine, the piston rod of the cylinder is a hollow structure, the connecting sleeve is sleeved on the paintbrush and the upper end of the paintbrush is inserted into the piston rod of the cylinder; There is a stepped surface on the inner wall of the connecting sleeve, an annular boss is provided on the outer peripheral surface of the paint brush, one side of the annular boss leans against the stepped surface, and a coil spring is also sleeved on the paint brush , the two ends of the coil spring respectively act on the lower end surface of the piston rod of the cylinder and the other side of the annular boss. Through the buffering effect of the coil spring, the paintbrush can be automatically adjusted to a certain extent, so as to ensure the strength and prevent the pen core from breaking.

In the above brush drive mechanism on the sewing machine, the air cylinder is respectively provided with an air inlet joint for connecting the air intake pipe and an air outlet joint for connecting the air outlet pipe, and the air outlet joint is provided with an air pressure regulating valve. The air flow in the cylinder needs to circulate continuously. The air flow enters the cylinder from the intake air pipe through the air intake joint, and is discharged from the cylinder through the air outlet joint and the air outlet pipe, thereby driving the cylinder to move, and the cylinder drives the paintbrush. Can adjust the movement speed of the cylinder.

The air intake pipe and air intake connector in this technical solution do not specifically refer to those specially used for air intake, nor do the air outlet pipes and air outlet joints specifically refer to those specially used for air discharge, but they are expressed differently according to the driving action of the cylinder , the action of the cylinder is controlled by the solenoid valve, and the intake and exhaust passages in the cylinder are selected according to the needs.

In the above brush driving mechanism on the sewing machine, the connecting plate includes a mounting portion and a bent connecting portion, the connecting portion is provided with a connection through hole, the cylinder is fixed on the mounting portion, the Two limit blocks are also fixed on the installation part, and the two limit blocks are respectively arranged on two sides of the cylinder and abut against the side surfaces of the cylinder. The cylinder and the casing are connected through a connection plate, and the cylinder is fixed and limited by a limit block on the connection plate to ensure the reliability and stability of the installation of the cylinder, thereby ensuring the stability and reliability of the brush marking line.

In the above-mentioned paintbrush driving mechanism on the sewing machine, the lower end of the piston rod of the cylinder is connected with the paintbrush, and the upper end of the piston rod of the air cylinder passes through the cylinder body of the cylinder and extends to the cylinder body of the cylinder, so The middle part of the piston rod of the air cylinder has a piston body; the adjusting sleeve is screwed to the upper end of the piston rod of the air cylinder. The stroke of the cylinder is controlled by the limit function of the adjusting sleeve, which is convenient for adjustment.

Compared with the prior art, the utility model has the following advantages:

1. In the utility model, the descending height of the piston rod of the cylinder is controlled by adjusting the stroke of the cylinder through the adjustment sleeve, and then the height of the brush is adjusted. The stroke adjustment range of the cylinder is large, which can adapt to and meet the needs of different processing fabrics and use environments , the operation is also very convenient.

2. In the utility model, the length of the piston rod inserted in the connecting sleeve of the cylinder can be adjusted by turning the fine-tuning nut, thereby further changing the height of the paintbrush, realizing fine adjustment and making the adjustment more accurate.

Description of drawings

Fig. 1 is a three-dimensional structural schematic view of the brush driving mechanism when it is installed and used.

Fig. 2 is a three-dimensional structural schematic diagram of the driving mechanism of the brush.

Fig. 3 is a front structural schematic view of the driving mechanism of the brush.

Fig. 4 is a schematic cross-sectional structural diagram at A-A in Fig. 3 .

In the figure, 1, casing; 2, connecting plate; 21, connecting part; 21a, connecting through hole; 22, installing part; 3, cylinder; 31, piston rod; 32, piston body; 33, cylinder body; 4, Fine-tuning nut; 5. Connecting sleeve; 51. Step surface; 6. Paintbrush; 61. Annular boss; 7. Helical spring; 8. Limit block; 9. Air inlet joint; 10. Air outlet joint; Valve; 12, adjusting sleeve.

detailed description

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1 and Fig. 2, this sewing machine comprises a casing 1, and a connecting plate 2 is fixedly connected on the casing 1, and the brush drive mechanism includes a cylinder 3 fixed on the connecting plate 2, and the cylinder 3 is an adjustable stroke cylinder. The piston rod 31 of the cylinder 3 is arranged vertically downward, and the upper end of the cylinder 3 has an adjusting sleeve 12 capable of regulating the stroke of the cylinder 3; the piston rod 31 of the cylinder 3 is connected with a paintbrush 6 vertically downward. Specifically, the piston rod 31 of the cylinder 3 is screwed with a fine-tuning nut 4 and a connecting sleeve 5, the fine-tuning nut 4 is fixedly connected with the connecting sleeve 5, the paintbrush 6 is connected with the connecting sleeve 5, and the fine-tuning nut 4 and the connecting sleeve 5 are welded on Formed together or integrally, the fine-tuning nut 4 has an internal thread, and the outer peripheral surface of the piston rod 31 of the cylinder 3 has an external thread, and the two cooperate to form a threaded connection. In the initial state, the piston rod 31 of the cylinder 3 is in a rising state. After the processing cloth is placed in place, the cylinder 3 moves, the piston rod 31 moves down with the animation pen 6, the nib of the brush 6 contacts the processing cloth, and the processing cloth moves to realize marking. Scribing, marking and scribing through mechanical automation can save a lot of manpower and time costs, and it is more accurate and beautiful. The cylinder 3 in the technical solution adopts the stroke adjustable cylinder 3, controls the descending height of the cylinder 3 piston rod 31 by adjusting the stroke of the cylinder 3, and adjusts the height of the paintbrush 6, and the stroke adjustment range of the cylinder 3 is large, so that it can Adapt to and meet the needs of different processing fabrics and use environments, and manually adjust through the adjustment sleeve 12, and the operation is also very convenient; adjust the length of the piston rod 31 of the cylinder 3 inserted in the connection sleeve 5 by twisting the fine adjustment nut 4, so that The height of the paintbrush 6 is further changed to achieve fine adjustment and make the adjustment more precise; in this technical solution, the stable connection of the paintbrush 6 with the connecting plate 2 and the cylinder 3 ensures the stability and reliability of the paintbrush 6 when marking lines.

As shown in Figures 2 and 3, the cylinder 3 is respectively provided with an air inlet joint 9 for connecting the intake air pipe and an air outlet joint 10 for connecting the air outlet pipe, and the air outlet joint 10 is provided with an air pressure regulating valve 11; It includes a mounting portion 22 and a bent connecting portion 21, the connecting portion 21 is provided with a connecting through hole 21a, the cylinder 3 is fixed on the mounting portion 22, and the mounting portion 22 is also fixed with two limit blocks 8, two Limiting blocks 8 are arranged on both sides of the cylinder 3 and are adjacent to the side of the cylinder 3; the cylinder 3 and the casing 1 are connected through the connecting plate 2, and the connecting plate 2 is fixed and limited by the limiting block 8 on the cylinder 3 , to ensure the reliability and stability of the installation of the cylinder 3, thereby ensuring the stability and reliability of the paintbrush 6 when marking the line.

As shown in Figure 4, the lower end of the piston rod 31 of the cylinder 3 is connected with the paintbrush 6, the upper end of the piston rod 31 of the cylinder 3 passes through the cylinder body 33 of the cylinder 3 and extends to outside the cylinder body 33 of the cylinder 3, the piston rod of the cylinder 3 The middle part of 31 has a piston body 32; the adjusting sleeve 12 is screwed on the upper end of the piston rod 31 of the cylinder 3; inside the piston rod 31; the inner wall of the connecting sleeve 5 has a stepped surface 51, and the outer peripheral surface of the paintbrush 6 has an annular boss 61, and one side of the annular boss 61 leans against the stepped surface 51, and the paintbrush 6 also has A helical spring 7 is sheathed, and the two ends of the helical spring 7 respectively act on the lower end surface of the piston rod 31 of the cylinder 3 and the other side of the annular boss 61 .

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although this article uses 1, casing; 2, connecting plate; 21, connecting part; 21a, connecting through hole; 22, installing part; 3, cylinder; 31, piston rod; 32, piston body; 33, cylinder 4. Fine-tuning nut; 5. Connecting sleeve; 51. Step surface; 6. Paintbrush; 61. Annular boss; 7. Helical spring; 8. Limit block; 11. Air pressure regulating valve; 12. Terms such as regulating sleeve, but the possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (6)

1. A paintbrush driving mechanism on a sewing machine, the sewing machine comprises a casing (1), and the connecting plate (2) is fixedly connected on the casing (1), it is characterized in that, the described paintbrush driving mechanism includes a The cylinder (3) on the connecting plate (2), the piston rod (31) of the cylinder (3) is arranged vertically downwards, and the upper end of the cylinder (3) has an adjustment mechanism capable of adjusting the stroke of the cylinder (3). Cover (12); the piston rod (31) of the cylinder (3) is connected with a vertically downward painting brush (6). 2. The paintbrush driving mechanism on the sewing machine according to claim 1, characterized in that, the piston rod (31) of the cylinder (3) is screwed with a fine-tuning nut (4) and a connecting sleeve (5), the The fine-tuning nut (4) is fixedly connected with the connecting sleeve (5), and the painting brush (6) is connected with the connecting sleeve (5). 3. The painting brush driving mechanism on the sewing machine according to claim 2, characterized in that, the piston rod (31) of the cylinder (3) is a hollow structure, and the connecting sleeve (5) is sleeved on the painting brush ( 6) and the upper end of the paintbrush (6) is inserted in the piston rod (31) of the cylinder (3); there is a step surface (51) on the inner wall of the connecting sleeve (5), and the paintbrush ( 6) has an annular boss (61) on the outer peripheral surface, one side of the annular boss (61) leans against the step surface (51), and the brush (6) is also sleeved with A coil spring (7), the two ends of the coil spring (7) respectively act on the lower end surface of the piston rod (31) of the cylinder (3) and the other side of the annular boss (61). 4. The paintbrush driving mechanism on the sewing machine according to claim 1, 2 or 3, characterized in that, the air cylinder (3) is respectively provided with an air inlet joint (9) for connecting the air inlet pipe and an air inlet joint (9) for connecting the air inlet pipe. The air outlet joint (10) of the air outlet air pipe is provided with an air pressure regulating valve (11) on the air outlet joint (10). 5. The brush drive mechanism on the sewing machine according to claim 1, 2 or 3, characterized in that, the connecting plate (2) comprises a mounting portion (22) and a bent connecting portion (21), the connecting A connection through hole (21a) is opened on the part (21), the cylinder (3) is fixed on the installation part (22), and two limit blocks ( 8), the two limit blocks (8) are respectively arranged on both sides of the cylinder (3) and abut against the side surfaces of the cylinder (3). 6. The painting brush driving mechanism on the sewing machine according to claim 1, 2 or 3, characterized in that, the lower end of the piston rod (31) of the cylinder (3) is connected with the painting brush (6), and the cylinder The piston rod (31) upper end of (3) passes through the cylinder body (33) of described cylinder (3) and extends to outside the cylinder body (33) of cylinder (3), the piston rod (31) of described cylinder (3) ) has a piston body (32) in the middle; the adjusting sleeve (12) is screwed to the upper end of the piston rod (31) of the cylinder (3).