Thread tension regulating device for an embroidery machine

Abstract

This utility model relates to the technical field of thread tension adjustment equipment for embroidery machines, specifically a thread tension adjustment device for embroidery machines. It includes a support, with a corner plate seat bolted to the outer wall surface of the support. A shaft cylinder for transmission is rotatably mounted on the outer wall surface of the corner plate seat. An electric actuator for rotating the shaft cylinder is bolted to the outer end of the corner plate seat away from the shaft cylinder. A horizontal shaft for support is engaged inside the shaft cylinder. A rotating rod screwed onto the outer circumference of the shaft cylinder and connected to the horizontal shaft is screwed in. When replacing the lifting rod, simply unscrew the pin screwed onto the horizontal shaft, causing the pin and the horizontal shaft to separate and the U-shaped ring to separate from the lifting rod. Then, the lifting rod inserted into the straight hole on the outer circumference of the horizontal shaft can be pulled out, facilitating disassembly and replacement. The replacement is simple and convenient, allowing the lifting rod to be used more stably during thread tension adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of tension adjustment equipment for embroidery machines, and specifically to a thread tension adjustment device for embroidery machines. Background Technology

[0002] An embroidery machine is a mechanical device that, while the needle bar moves up and down, moves the embroidery frame, which holds the fabric in place, in the X and Y axes, simultaneously performing embroidery according to the user's needs. This type of embroidery machine consists of one head arm equipped with a needle bar, a thread take-up mechanism, etc.; a rotating hook base mounted on each head arm and equipped with a needle holder, etc.; an embroidery frame; and an XY transmission system for driving the embroidery frame. Each head arm can have at least one needle bar corresponding to the required color of thread. Furthermore, to improve the quality of the embroidery machine product, it is necessary to apply appropriate tension to the thread supplied to the needle after it is drawn from the spool. This device includes a thread tension adjustment mechanism. Patent number CN202180097492.9 discloses a thread tension adjustment mechanism for embroidery machines, which can more easily and accurately adjust the tension of the thread based on the supply speed and consumption of the thread. This prevents thread breakage, ensures smooth thread supply, and improves embroidery quality. However, during the use of thread tension adjustment equipment for embroidery machines, the take-up lever needs to be in contact with the thread for extended periods, leading to wear and tear on the lever and affecting the operation of the tension adjustment device. Therefore, we propose a thread tension adjustment mechanism for embroidery machines. Utility Model Content

[0003] In view of the problems in the prior art, this utility model provides a thread tension adjustment device for embroidery machines.

[0004] The technical solution adopted by this utility model to solve its technical problem is a thread tension adjustment device for an embroidery machine, including a support. An angle plate seat for support is bolted to the outer wall surface of the support, and a shaft cylinder for transmission is rotatably installed on the outer wall surface of the angle plate seat. An electric actuator for driving the shaft cylinder to rotate is bolted to the outer periphery of the angle plate seat away from the shaft cylinder. A horizontal shaft for support is snapped into the inner side of the shaft cylinder. A rotating rod that is screwed into the horizontal shaft is screwed to the outer periphery of the shaft cylinder.

[0005] The horizontal shaft has a straight hole for limiting the position on its outer periphery, and a lifting rod for adjusting the tension of the embroidery machine thread is inserted into the inner side of the straight hole. A pin for adjustment is screwed onto the outer periphery of the horizontal shaft, and a U-shaped ring that fits into the lifting rod is rotatably installed at one end of the pin located inside the horizontal shaft.

[0006] By adopting the above technical solution, during the use of the embroidery machine thread tension adjustment device, the electric actuator on the outside of the corner plate seat can operate and easily drive the rotating drum to rotate or return to its original position, and can drive the lifting rod body on the outer periphery of the horizontal shaft to swing, thereby facilitating the adjustment of thread tension. At the same time, the horizontal shaft on the inner side of the shaft cylinder can be pulled out simply by unscrewing the rotating rod on the outer periphery of the shaft cylinder, making it easy to disassemble and replace. It can be replaced according to the needs of use, making it convenient to adjust the thread tension.

[0007] When replacing the cantilever body, simply unscrew the pin that is screwed onto the horizontal shaft, causing the pin and the horizontal shaft to separate from each other and the U-shaped ring to separate from the cantilever body. Then, the cantilever body inserted into the straight hole on the outer circumference of the horizontal shaft can be pulled out, making it easy to disassemble and replace. The replacement is simple and convenient, allowing the cantilever body to be used more stably for online tension adjustment.

[0008] Specifically, a cross ring rod that abuts against the lifting rod body is slidably installed on the inner side of the horizontal shaft, and a compression spring for pushing the cross ring rod to move is assembled between the cross ring rod and the horizontal shaft. A plug ring that fits into the cross ring rod is screwed on the inner side of the horizontal shaft.

[0009] By adopting the above technical solution, when installing the cantilever body, it is convenient to insert the cantilever body into the straight hole on the outer periphery of the horizontal shaft. During insertion, the compression spring inside the horizontal shaft can push the cross ring rod to move, so that the end of the cross ring rod passing through the plug ring abuts against the end of the cantilever body located inside the straight hole. This facilitates auxiliary limiting of the cantilever body inserted inside the straight hole, making it easier to lock and fix it later, thereby improving the convenience of cantilever body installation.

[0010] Specifically, the outer circumference of the horizontal shaft is provided with a horizontal groove for rotation, and there are multiple sets of horizontal grooves. The end of the horizontal shaft located inside the shaft cylinder is provided with an arc-shaped groove that fits with the inner circumference of the shaft cylinder, and there are multiple sets of arc-shaped grooves.

[0011] By adopting the above technical solution, the transverse groove on the outer periphery of the transverse shaft can easily cooperate with the pin, making it easier to disassemble and assemble the pin. The arc-shaped groove on the outer periphery of the transverse shaft matches the protrusion inside the shaft cylinder, enabling the shaft cylinder to drive the transverse shaft to rotate more stably, facilitating transmission.

[0012] Specifically, the inner circumference of the U-shaped ring and the end of the cross ring rod near the cantilever rod body are both glued with protective rubber pads.

[0013] By adopting the above technical solution, the rubber pad can reduce the damage caused by friction when the U-shaped ring or cross ring rod comes into contact with the cantilever rod body.

[0014] Specifically, the outer wall surface of the support is provided with an adjustment groove, and there are two sets of grooves. An adjustment slide is slidably installed on the inner side of the groove, and the outer wall surface of the slide is equipped with the lead wire adjuster body. A lead screw is rotatably installed on the inner side of the groove and screwed to the slide. A servo motor for driving the lead screw to rotate is installed on both the top and bottom surfaces of the support by bolts.

[0015] By adopting the above technical solution, during the use of the wire tension adjustment device, the servo motor can operate and easily drive the lead screw inside the slide groove to rotate, so that the lead screw can be screwed together with the sliding block in the slide groove, causing the sliding block to slide under the screwing force. Subsequently, the sliding block can easily drive the lead wire adjuster body to move, and the positions of the two sets of lead wire adjuster bodies on the outside of the support can be adjusted, which facilitates the adjustment of wire tension and makes the wire tension adjustment device more convenient to use.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of the corner plate seat, shaft cylinder, electric actuator, horizontal shaft, rotating rod, straight hole and lifting rod body, enables the electric actuator on the outside of the corner plate seat to operate and easily drive the rotating drum to rotate or return to its original position during the use of the embroidery machine thread tension adjustment device, and can drive the lifting rod body on the outer periphery of the horizontal shaft to swing, thereby facilitating the adjustment of thread tension. At the same time, the horizontal shaft on the inner side of the shaft cylinder can be pulled out simply by unscrewing the rotating rod on the outer periphery of the shaft cylinder, which is convenient for disassembly and replacement, and can be replaced according to the needs of use, facilitating the adjustment of thread tension.

[0018] 2. The technical solution of this application, through the design of the pin and U-ring, allows for easy replacement of the cantilever body by simply unscrewing the pin that is screwed onto the horizontal shaft, causing the pin and the horizontal shaft to separate from each other, and thus separating the U-ring from the cantilever body. Then, the cantilever body inserted into the straight hole on the outer circumference of the horizontal shaft can be pulled out, making it easy to disassemble and replace. The replacement is simple and convenient, enabling the cantilever body to be used more stably during online tension adjustment. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is an exploded view of the connection structure between the pin and the horizontal axis of this utility model;

[0022] Figure 3 This is an exploded view of the connection structure between the compression spring and the plug ring of this utility model;

[0023] In the diagram: 1. Support; 2. Angle plate seat; 3. Shaft cylinder; 4. Electric actuator; 5. Horizontal shaft; 6. Rotary rod; 7. Straight hole; 8. Cantilever rod body; 9. Pin rod; 10. U-shaped ring; 11. Cross ring rod; 12. Plug ring; 13. Compression spring; 14. Horizontal groove; 15. Arc groove; 16. Rubber pad; 17. Slide groove; 18. Lead screw; 19. Slide seat; 20. Lead wire adjuster body; 21. Servo motor. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please see Figure 1-3 This utility model provides a technical solution: a thread tension adjustment device for an embroidery machine, including a support 1. An angle plate seat 2 for support is bolted to the outer wall surface of the support 1, and a shaft cylinder 3 for transmission is rotatably installed on the outer wall surface of the angle plate seat 2. An electric actuator 4 for driving the shaft cylinder 3 is bolted to the outer periphery of the angle plate seat 2 away from the shaft cylinder 3, and a horizontal shaft 5 for support is snapped into the inner side of the shaft cylinder 3. A rotating rod 6 that is screwed into the outer periphery of the shaft cylinder 3 is screwed into the horizontal shaft 5. A straight hole 7 for limiting is opened on the outer periphery of the horizontal shaft 5, and a lifting rod body 8 for adjusting the thread tension of the embroidery machine is inserted into the inner side of the straight hole 7. A pin 9 for adjustment is screwed into the outer periphery of the horizontal shaft 5, and a U-shaped ring 10 that fits into the lifting rod body 8 is rotatably installed at the inner side of the pin 9.

[0026] When in use, the electric actuator 4 on the outside of the corner plate seat 2 can operate and easily drive the rotating drum to rotate or return to its original position. It can also drive the lifting rod 8 on the outer periphery of the horizontal shaft 5 to swing, thereby facilitating the adjustment of the thread tension. At the same time, the horizontal shaft 5 on the inner side of the shaft cylinder 3 can be pulled out by simply unscrewing the rotating rod 6 on the outer periphery of the shaft cylinder 3, making it easy to disassemble and replace. It can be replaced according to the needs of use, making it convenient to adjust the thread tension.

[0027] When replacing the lifting rod body 8, simply unscrew the pin 9 that is screwed onto the horizontal shaft 5, and let the pin 9 and the horizontal shaft 5 separate from each other, causing the U-shaped ring 10 to separate from the lifting rod body 8. Then, the lifting rod body 8 inserted into the straight hole 7 on the outer circumference of the horizontal shaft 5 can be pulled out, making it easy to disassemble and replace. The replacement is simple and convenient, allowing the lifting rod body 8 to be used more stably during online tension adjustment.

[0028] like Figure 3As shown, a cross ring rod 11 that abuts against the lifting rod body 8 is slidably installed on the inner side of the horizontal shaft 5, and a compression spring 13 for pushing the cross ring rod 11 to move is assembled between the cross ring rod 11 and the horizontal shaft 5. A plug ring 12 that fits into the cross ring rod 11 is screwed on the inner side of the horizontal shaft 5.

[0029] When using the device, the cantilever body 8 can be easily inserted into the straight hole 7 on the outer periphery of the horizontal shaft 5. During insertion, the compression spring 13 inside the horizontal shaft 5 can push the cross ring rod 11 to move, so that one end of the cross ring rod 11 passing through the plug ring 12 abuts against the end of the cantilever body 8 located inside the straight hole 7. This facilitates auxiliary limiting of the cantilever body 8 inserted inside the straight hole 7, making it easier to lock and fix it later, thereby improving the convenience of installing the cantilever body 8.

[0030] like Figure 1 and Figure 2 As shown, the outer circumference of the horizontal shaft 5 is provided with a horizontal groove 14 for rotation, and there are multiple sets of horizontal grooves 14. One end of the horizontal shaft 5 located inside the shaft cylinder 3 is provided with an arc-shaped groove 15 that fits the inner circumference of the shaft cylinder 3, and there are multiple sets of arc-shaped grooves 15.

[0031] In use, the transverse groove 14 on the outer periphery of the transverse shaft 5 can easily cooperate with the pin 9, making it easier to disassemble and assemble the pin 9. The arc groove 15 on the outer periphery of the transverse shaft 5 fits into the protrusion inside the shaft cylinder 3, allowing the shaft cylinder 3 to drive the transverse shaft 5 to rotate more stably, facilitating transmission.

[0032] like Figure 2 and Figure 3 As shown, the inner circumference of the U-shaped ring 10 and the end of the cross ring rod 11 near the cantilever body 8 are both glued with protective rubber pads 16.

[0033] During use, the rubber pad 16 helps to reduce damage caused by friction when the U-shaped ring 10 or cross ring rod 11 comes into contact with the lifting rod body 8.

[0034] like Figure 1 As shown, the outer wall surface of the support 1 is provided with a sliding groove 17 for adjustment, and there are two sets of sliding grooves 17. The sliding seat 19 for adjustment is slidably installed inside the sliding groove 17, and the outer wall surface of the sliding seat 19 is equipped with the lead wire adjuster body 20. The lead screw 18 that is screwed and connected to the sliding seat 19 is rotatably installed inside the sliding groove 17, and the top and bottom surfaces of the support 1 are both equipped with servo motors 21 for driving the lead screw 18 to rotate by bolts.

[0035] During use, the servo motor 21 operates and drives the lead screw 18 inside the slide groove 17 to rotate, allowing the lead screw 18 to screw together with the sliding block 19 in the slide groove 17. This causes the sliding block 19 to slide under the screwing force, which in turn drives the lead wire adjuster body 20 to move. This also allows the positions of the two sets of lead wire adjuster bodies 20 on the outside of the support 1 to be adjusted, facilitating the adjustment of line tension and making the line tension adjustment device more convenient to use.

[0036] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in the appropriate positions. During the use of the embroidery machine thread tension adjustment device, the electric actuator 4 on the outer side of the corner plate seat 2 can operate, easily driving the rotating drum to rotate or return to its original position. It can also drive the lifting rod 8 on the outer periphery of the horizontal shaft 5 to swing, thus facilitating thread tension adjustment. Simultaneously, simply unscrew the rotating rod 6 on the outer periphery of the shaft cylinder 3 to remove the horizontal shaft 5 inside the shaft cylinder 3, facilitating disassembly and replacement. It can be replaced according to usage needs, facilitating thread tension adjustment. When replacing the lifting rod 8, simply unscrew the pin 9 screwed onto the horizontal shaft 5, causing the pin 9 and the horizontal shaft 5 to separate and drive the U-shaped ring 10 to separate from the lifting rod 8. Then, the lifting rod 8 inserted into the straight hole 7 on the outer periphery of the horizontal shaft 5 can be removed, facilitating disassembly and replacement. The replacement is simple and convenient, allowing the lifting rod 8 to be used more stably during thread tension adjustment. During installation, the cantilever rod 8 can be easily inserted into the straight hole 7 on the outer periphery of the horizontal shaft 5. During insertion, the compression spring 13 inside the horizontal shaft 5 can push the cross ring rod 11 to move, and the end of the cross ring rod 11 passing through the plug ring 12 abuts against the end of the cantilever rod 8 located inside the straight hole 7. This facilitates auxiliary limiting of the cantilever rod 8 inserted inside the straight hole 7, making it easier to lock and fix it later, thereby improving the ease of installation of the cantilever rod 8. In the process of using the line tension adjustment device, the servo motor 21 can operate and easily drive the lead screw 18 inside the slide groove 17 to rotate, so that the lead screw 18 can be screwed together with the sliding seat 19 in the slide groove 17. The sliding seat 19 slides under the screwing force, and then the sliding seat 19 easily drives the lead wire adjuster body 20 to move, and the position of the two sets of lead wire adjuster bodies 20 on the outside of the support 1 can be adjusted, which facilitates the adjustment of line tension and makes the line tension adjustment device more convenient to use.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thread tension adjusting device for an embroidery machine, characterized in that, Includes a support (1), the outer wall surface of the support (1) is bolted with an angle plate seat (2) for support, and the outer wall surface of the angle plate seat (2) is rotatably mounted with a shaft cylinder (3) for transmission, the outer periphery of the angle plate seat (2) away from the shaft cylinder (3) is bolted with an electric actuator (4) for driving the shaft cylinder (3) to rotate, and the inner side of the shaft cylinder (3) is snapped with a horizontal shaft (5) for support, and the outer periphery of the shaft cylinder (3) is screwed with a rotating rod (6) that is screwed to the horizontal shaft (5); The horizontal shaft (5) has a straight hole (7) for limiting the position on its outer periphery, and a lifting rod (8) for adjusting the tension of the embroidery machine thread is inserted into the inner side of the straight hole (7). A pin (9) for adjusting is screwed onto the outer periphery of the horizontal shaft (5), and a U-shaped ring (10) that fits into the lifting rod (8) is rotatably installed at one end of the pin (9) located inside the horizontal shaft (5).

2. The thread tension adjusting device for an embroidery machine according to claim 1, characterized in that, A cross ring rod (11) that abuts against the lifting rod body (8) is slidably installed on the inner side of the horizontal shaft (5), and a compression spring (13) for pushing the cross ring rod (11) to move is assembled between the cross ring rod (11) and the horizontal shaft (5). A plug ring (12) that fits into the cross ring rod (11) is screwed on the inner side of the horizontal shaft (5).

3. The thread tension adjusting device for an embroidery machine according to claim 1, characterized in that, The outer periphery of the horizontal shaft (5) is provided with a horizontal groove (14) for rotation, and there are multiple sets of horizontal grooves (14). One end of the horizontal shaft (5) located inside the shaft cylinder (3) is provided with an arc-shaped groove (15) that fits the inner periphery of the shaft cylinder (3), and there are multiple sets of arc-shaped grooves (15).

4. The thread tension adjusting device for an embroidery machine according to claim 1, characterized in that, The inner circumference of the U-shaped ring (10) and the end of the cross ring rod (11) near the cantilever body (8) are both glued with protective rubber pads (16).

5. The thread tension adjusting device for an embroidery machine according to claim 1, characterized in that, The outer wall surface of the support (1) is provided with a sliding groove (17) for adjustment, and there are two sets of sliding grooves (17). The sliding seat (19) for adjustment is slidably installed inside the sliding groove (17), and the outer wall surface of the sliding seat (19) is equipped with the lead wire adjuster body (20). The inner side of the sliding groove (17) is rotatably installed with a screw rod (18) that is screwed to the sliding seat (19). The top surface and bottom surface of the support (1) are both equipped with servo motors (21) for driving the screw rod (18) to rotate by bolts.

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