Anti-winding structure of sewing machine

Abstract

The utility model relates to the technical field of sewing machines, and discloses a sewing machine anti-winding structure which comprises a sewing bottom plate, a first threaded hole is formed in the upper surface of the sewing bottom plate, a fixing bolt is in threaded connection with the interior of the first threaded hole, and the surface of the fixing bolt is in threaded connection with a connecting plate through a second threaded hole. And a sewing machine body is fixedly mounted on one side of the connecting plate. Compared with the prior art, the thread winding device has the following advantages and effects that through matched arrangement of the servo motor, the transmission rod, the rotating disc, the fixed threaded rod and the nut, a thread shaft is connected to the surface of the fixed threaded rod in a sleeving mode during use, then a worker rotates the nut to tighten and fix the thread shaft, and then the transmission rod and the rotating disc are driven to rotate through an external power source of the servo motor; and a fixed threaded rod is driven to rotate through a rotating disc, so that the effects of conveniently and uniformly conveying the sewing thread and preventing breakage caused by non-uniform conveying are achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a thread entanglement prevention structure of a sewing machine. Background Art

[0002] The structure of a sewing machine generally includes a sewing machine base, a sewing machine head connected to the sewing machine base and a driving mechanism. A sewing needle bar and a selecting rod are arranged on the sewing machine head. The sewing needle bar is fixed with a sewing needle. The driving mechanism drives the sewing needle to move up and down while driving the selecting rod to swing up and down at a high speed. The swinging of the selecting rod drives the sewing thread to reciprocate up and down, thereby realizing the supply and recovery of the sewing thread, so that the stitches formed by the upper thread and the lower thread are tightened, and the amount of thread required for a stitch is drawn out from the thread tube. Driven by the thread picking rod to continuously reciprocate up and down at a high speed, the sewing thread will be lifted up and move toward the outside of the sewing machine in a parabola or a circle due to inertia. If you are not careful, it is easy to be entangled by other parts and cause the thread to break, which is not conducive to the connection and smooth operation of the sewing machine. In order to overcome the above-mentioned shortcomings, the utility model proposes a sewing machine anti-entanglement structure.

[0003] For example, a sewing machine anti-tangling structure with publication number CN207109292U includes a limit sleeve, a connecting plate, a lifting rod and a lifting mechanism driving the lifting rod to lift and lower, the limit sleeve is provided with an axle head extending along the radial direction of the limit sleeve, the axle head is rotatably connected to the connecting plate, the axle head extends in the front-back direction, the axle head is connected to a driving handle driving the axle head to rotate, and the driving handle is hinged on the lifting rod. The utility model provides a sewing machine anti-tangling structure with adjustable space for sewing thread movement limited by the limit sleeve, which solves the problem that the existing limit space is fixed when the limit sleeve is used for limiting.

[0004] The above patent proposes that the existing anti-thread entanglement structure usually uses a limit sleeve to limit the position, and the limit space is fixed. However, during use, the transportation of the sewing thread is based on the frequency of the sewing needle to pull the sewing thread, which makes the force of the sewing thread uneven during transportation, resulting in the breakage of the sewing thread during transportation. It is time-consuming and laborious to reconnect the threads, thereby reducing the practicality of the device. In addition, the precision of the sewing thread cannot be adjusted during sewing, and long-term use causes the sewing thread to loosen, which leads to entanglement and knotting. Therefore, the utility model provides a sewing machine anti-thread entanglement structure. Utility Model Content

[0005] The utility model aims to provide a thread entanglement prevention structure for a sewing machine, which can solve the problems raised in the above-mentioned background technology.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a sewing machine anti-tangling structure, including a sewing base plate, a first threaded hole is opened on the upper surface of the sewing base plate, the internal thread of the first threaded hole is connected with a fixing bolt, the surface of the fixing bolt is threadedly connected with a connecting plate through a second threaded hole, a sewing machine body is fixedly installed on one side of the connecting plate, a liquid crystal display control screen is fixedly installed on the front of the sewing machine body, and a charging hole is opened on one side of the sewing machine body.

[0007] The utility model is further configured as follows: a fan placement frame is fixedly installed on the upper surface of the sewing machine body, and a fan power supply hole is opened on one side of the fan placement frame.

[0008] By adopting the above technical solution, the fan is placed in the fan placement frame, and then the fan wire interface is inserted into the fan power hole, thereby facilitating the placement of the fan for use.

[0009] The utility model is further configured as follows: a placement plate is fixedly installed on the other side of the sewing machine body, and a telescopic rod is fixedly installed on the bottom of the placement plate.

[0010] By adopting the above technical solution, when in use, the telescopic rod is extended and retracted to drive the electric telescopic plate to move, and then the electric telescopic rod plate drives the pressing ring to move, thereby playing the role of squeezing and fixing the clothes to be sewn.

[0011] The utility model is further configured as follows: an electric telescopic plate is fixedly installed at the bottom of the telescopic rod, and a pressure ring is fixedly installed at one end of the electric telescopic plate.

[0012] The utility model is further configured as follows: a servo motor is fixedly mounted on one side of the telescopic rod, and a transmission rod is spline-connected to an output end of the servo motor.

[0013] By adopting the above technical solution, the spool is sleeved on the surface of the fixed threaded rod, and then a person turns the nut to tighten and fix the spool, and then the transmission rod and the turntable are driven to rotate by the external power supply of the servo motor, and the fixed threaded rod is driven to rotate by the turntable, thereby facilitating the uniform conveying of sewing thread and preventing breakage caused by uneven conveying, thereby improving the practicality of the device.

[0014] The utility model is further configured as follows: a turntable is fixedly mounted on one end of the transmission rod, and a fixed threaded rod is fixedly mounted on the upper surface of the turntable.

[0015] The utility model is further configured as follows: a nut is connected to the surface of the fixed threaded rod via a thread, and an electric push rod is fixedly installed on one side of the placement plate.

[0016] By adopting the above technical solution, the sewing thread is inserted into the threading rod, and then the movable plate is moved by the extension of the electric push rod, and then the threading rod is moved by the movable plate, thereby facilitating the adjustment of the tightness of the sewing thread to prevent entanglement due to looseness.

[0017] The utility model is further configured as follows: a moving plate is fixedly installed at the bottom of the electric push rod, and a threading rod is fixedly installed at the bottom of the moving plate.

[0018] The utility model is further configured as follows: a threading ring is fixedly installed on the other side of the electric push rod, and a lighting lamp is fixedly installed on the bottom of the sewing machine body.

[0019] By adopting the above technical solution, the lighting lamp can be used to illuminate the sewing process.

[0020] The utility model is further configured as follows: a telescopic component is fixedly installed on one side of the lighting lamp, and a sewing needle is fixedly installed on the bottom of the telescopic component.

[0021] The beneficial effects of the utility model are:

[0022] The utility model is provided through the coordinated arrangement of a servo motor, a transmission rod, a turntable, a fixed threaded rod and a nut. When in use, the thread spool is sleeved on the surface of the fixed threaded rod, and then a person turns the nut to tighten and fix the thread spool. Then, the transmission rod and the turntable are driven to rotate by an external power supply of the servo motor, and the fixed threaded rod is driven to rotate by the turntable, thereby facilitating uniform conveying of sewing thread and preventing breakage caused by uneven conveying, thereby improving the practicability of the device.

[0023] The utility model cooperates with an electric push rod, a movable plate and a threading rod. When in use, the sewing thread is inserted into the threading rod, and then the movable plate is driven to move by the extension and retraction of the electric push rod, and then the threading rod is driven to move by the movable plate, thereby facilitating the adjustment of the tightness of the sewing thread and preventing it from being entangled due to looseness or tightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a structural breakdown diagram of the utility model;

[0027] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.

[0028] In the figure, 1, sewing base plate; 2, first threaded hole; 3, fixing bolt; 4, second threaded hole; 5, connecting plate; 6, sewing machine body; 7, LCD display control screen; 8, charging port; 9, fan placement frame; 10, fan power hole; 11, placement plate; 12, telescopic rod; 13, electric telescopic plate; 14, pressure ring; 15, servo motor; 16, transmission rod; 17, turntable; 18, fixed threaded rod; 19, nut; 20, electric push rod; 21, moving plate; 22, threading rod; 23, threading ring; 24, lighting; 25, telescopic assembly; 26, sewing needle. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-3 A sewing machine anti-tangling wire structure comprises a sewing base plate 1, a first threaded hole 2 is provided on the upper surface of the sewing base plate 1, a fixing bolt 3 is connected to the inner thread of the first threaded hole 2, a connecting plate 5 is connected to the surface of the fixing bolt 3 through a second threaded hole 4, a sewing machine body 6 is fixedly installed on one side of the connecting plate 5, a liquid crystal display control screen 7 is fixedly installed on the front of the sewing machine body 6, a charging hole 8 is provided on one side of the sewing machine body 6, a fan placement frame 9 is fixedly installed on the upper surface of the sewing machine body 6, and the fan placement frame 9 and the fan power hole 10 are matched to be set, when in use, the fan is placed in the fan placement frame 9, and then the fan wire interface is inserted into the fan power The fan is placed in the source hole 10, which makes it easy to place the fan for use. A fan power hole 10 is opened on one side of the fan placement frame 9, and a placement plate 11 is fixedly installed on the other side of the sewing machine body 6. A telescopic rod 12 is fixedly installed on the bottom of the placement plate 11. Through the coordinated arrangement of the telescopic rod 12, the electric telescopic plate 13 and the pressure ring 14, when in use, the telescopic rod 12 is extended and retracted to drive the electric telescopic plate 13 to move, and then the electric telescopic rod plate 13 drives the pressure ring 14 to move, thereby playing a role in squeezing and fixing the clothes to be sewn, and the electric telescopic plate 13 is fixedly installed on the bottom of the telescopic rod 12, and a pressure ring 14 is fixedly installed on one end of the electric telescopic plate 13.

[0031] A servo motor 15 is fixedly installed on one side of the telescopic rod 12. Through the coordination of the servo motor 15, the transmission rod 16, the turntable 17, the fixed threaded rod 18 and the nut 19, the spool is sleeved on the surface of the fixed threaded rod 18 when in use, and then the nut 19 is turned to tighten and fix the spool, and then the transmission rod 16 and the turntable 17 are driven to rotate by the external power supply of the servo motor 15, and the fixed threaded rod 18 is driven to rotate by the turntable 17, so as to facilitate the uniform transportation of the sewing thread and prevent the breakage caused by uneven transportation, thereby improving the practicality of the device. The output end of the servo motor 15 is spline-connected with the transmission rod 16, and the turntable 17 is fixedly installed on one end of the transmission rod 16. The fixed threaded rod 18 is fixedly installed on the upper surface of the turntable 17, and the surface of the fixed threaded rod 18 is connected to the nut 19 by thread. The plate 11 is placed. An electric push rod 20 is fixedly installed on one side. Through the coordinated arrangement of the electric push rod 20, the movable plate 21 and the threading rod 22, the sewing thread is inserted into the threading rod 22 during use, and then the movable plate 21 is moved by the telescopic movement of the electric push rod 20, and then the threading rod 22 is moved by the movable plate 21, thereby facilitating the adjustment of the tightness of the sewing thread to prevent it from being entangled. The movable plate 21 is fixedly installed on the bottom of the electric push rod 20, and the threading rod 22 is fixedly installed on the bottom of the movable plate 21. A threading ring 23 is fixedly installed on the other side of the electric push rod 20, and an illuminating lamp 24 is fixedly installed on the bottom of the sewing machine body 6. Through the arrangement of the illuminating lamp 24, the sewing is illuminated and supplemented by light. A telescopic component 25 is fixedly installed on one side of the illuminating lamp 24, and a sewing needle 26 is fixedly installed on the bottom of the telescopic component 25.

[0032] In the utility model, the anti-tangling structure of the sewing machine is used, the spool is sleeved on the surface of the fixed threaded rod 18, and then the person rotates the nut 19 to tighten and fix the spool, and then the servo motor 15 is connected to an external power supply to drive the transmission rod 16 and the turntable 17 to rotate, and the turntable 17 drives the fixed threaded rod 18 to rotate, so as to evenly convey the sewing thread to prevent uneven conveying and breakage, and the sewing thread is inserted into the threading rod 22, and then the electric push rod 20 is extended and retracted to drive the movable plate 21 to move, and then the movable plate 21 drives the threading rod 22 to move, so as to adjust the tightness of the sewing thread to prevent winding due to looseness.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thread entanglement prevention structure for a sewing machine, comprising a sewing bottom plate (1), characterized in that: A first threaded hole (2) is provided on the upper surface of the sewing base plate (1), a fixing bolt (3) is threadedly connected to the inner surface of the first threaded hole (2), a connecting plate (5) is threadedly connected to the surface of the fixing bolt (3) via a second threaded hole (4), a sewing machine body (6) is fixedly mounted on one side of the connecting plate (5), a liquid crystal display control screen (7) is fixedly mounted on the front side of the sewing machine body (6), and a charging hole (8) is provided on one side of the sewing machine body (6).

2. The anti-thread entanglement structure of a sewing machine according to claim 1, characterized in that: A fan placement frame (9) is fixedly mounted on the upper surface of the sewing machine body (6), and a fan power source hole (10) is opened on one side of the fan placement frame (9).

3. The anti-thread entanglement structure of a sewing machine according to claim 2, characterized in that: A placement plate (11) is fixedly mounted on the other side of the sewing machine body (6), and a telescopic rod (12) is fixedly mounted on the bottom of the placement plate (11).

4. The anti-thread entanglement structure of a sewing machine according to claim 3, characterized in that: An electric telescopic plate (13) is fixedly mounted on the bottom of the telescopic rod (12), and a pressure ring (14) is fixedly mounted on one end of the electric telescopic plate (13).

5. The anti-thread entanglement structure of a sewing machine according to claim 4, characterized in that: A servo motor (15) is fixedly mounted on one side of the telescopic rod (12), and a transmission rod (16) is spline-connected to an output end of the servo motor (15).

6. The anti-thread entanglement structure of a sewing machine according to claim 5, characterized in that: A rotating disk (17) is fixedly mounted on one end of the transmission rod (16), and a fixed threaded rod (18) is fixedly mounted on the upper surface of the rotating disk (17).

7. The anti-thread entanglement structure of a sewing machine according to claim 6, characterized in that: A nut (19) is threadedly connected to the surface of the fixed threaded rod (18), and an electric push rod (20) is fixedly mounted on one side of the placement plate (11).

8. The anti-thread entanglement structure of a sewing machine according to claim 7, characterized in that: A moving plate (21) is fixedly mounted on the bottom of the electric push rod (20), and a threading rod (22) is fixedly mounted on the bottom of the moving plate (21).

9. The anti-thread entanglement structure of a sewing machine according to claim 7, characterized in that: A threading ring (23) is fixedly mounted on the other side of the electric push rod (20), and a lighting lamp (24) is fixedly mounted on the bottom of the sewing machine body (6).

10. The anti-thread entanglement structure of a sewing machine according to claim 9, characterized in that: A telescopic component (25) is fixedly mounted on one side of the lighting lamp (24), and a sewing needle (26) is fixedly mounted on the bottom of the telescopic component (25).

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