Thread loosening device of sewing machine

Abstract

The utility model relates to the technical field of sewing machines, and discloses a thread loosening device of a sewing machine, which comprises a workbench, a support column fixedly connected to the front of the workbench, an upper machine body fixedly connected to the back of the support column, a thread shaft box fixedly connected to the upper surface of the upper machine body, and a motor box fixedly connected to one side of the upper machine body. A wire clamp box is arranged in the upper machine body, a control panel is fixedly connected to one side face of the supporting column, a rolling groove is formed in one side face of the workbench, and a rolling shaft is arranged on the inner wall of the rolling groove. The sewing machine has the following advantages and effects that the upper machine body, the workbench and the control panel are arranged, the control panel controls the sewing machine to work during work, then the movable clamp and the fixed clamp can clamp a sewing thread, the sewing thread can be loosened through the spring, the stability of the sewing thread is guaranteed, the fixed block and the movable block can fix the sewing thread, and the sewing machine is convenient to use. And thread trimming is more stable, the stability of the device is guaranteed, 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 loosening device of a sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and artificial fibers, as well as products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm. The sewing speed is fast, the efficiency is high, and the use is easy. The thread clamping device is an important part of the sewing machine, which can achieve a stable supply of the upper thread and ensure the normal sewing process.

[0003] According to Chinese patent number CN202007317U, a pneumatic thread loosening device for an overlock sewing machine is provided. The device includes a thread loosening claw inserted into the side of each upper thread pressing plate, and a micro piston cylinder mechanism is fixedly installed on the overlock sewing machine housing near the upper thread pressing plate. The piston shaft is perpendicular to the rotating shaft of the upper thread pressing plate, and the piston stroke is 5-10mm. The air inlet of the cylinder is connected to the compressed air source and is controlled by an electromagnetic air control valve; the claw is fixedly installed on the piston shaft and moves axially with the piston pushing the upper thread loosening claw. When the electromagnetic air control valve receives the required thread loosening instruction issued by the control system, the air inlet valve is immediately opened, and the compressed gas enters the cylinder to move the piston. The claw fixed on the piston shaft pushes the upper thread pressing plate to move with the movement of the piston, so that the upper thread is in a relaxed state, which is convenient for shearing. Since the pneumatic reaction is very rapid, the thread loosening process takes a short time and the action is reliable, which is conducive to improving the shearing speed and shearing quality.

[0004] The above patent has a good effect of facilitating thread cutting, but cannot fix the suture and cannot ensure the stability of the suture. Utility Model Content

[0005] The utility model aims to provide a thread loosening device for a sewing machine, which has the effect of fixing the sewing thread.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a thread loosening device for a sewing machine, comprising a workbench, a support column is fixedly connected to the front of the workbench, an upper body is fixedly connected to the back of the support column, a spool box is fixedly connected to the upper surface of the upper body, a motor box is fixedly connected to one side of the upper body, a wire clamp box is arranged inside the upper body, a control panel is fixedly connected to one side of the support column, a rolling groove is opened on one side of the workbench, a roller is arranged on the inner wall of the rolling groove, a connecting rod is fixedly connected to the other side of the roller, a flat plate is fixedly connected to one end of the connecting rod, and a gear shaft is fixedly connected to the inner wall of the workbench.

[0007] By adopting the above technical scheme, by setting up the upper body, the workbench and the control panel, the device is controlled by the control panel to work, and then the movable clamp and the fixed clamp can clamp the suture, the setting of the spring can loosen the suture to ensure the stability of the suture, the fixed block and the movable block can fix the suture, making the thread cutting more stable, ensuring the stability of the device, and improving the practicality of the device.

[0008] The utility model is further configured as follows: a collecting groove is provided on the upper surface of the workbench, and a working hole is provided on the upper surface of the workbench.

[0009] By adopting the above technical solution and providing a collecting trough, thread ends on the workbench can be collected to ensure that the workbench is clean.

[0010] The utility model is further configured as follows: a wire plate is fixedly connected to the upper surface of the support column, and a wire column is fixedly connected to the upper surface of the wire plate.

[0011] By adopting the above technical solution and arranging the thread plate and the thread column, it can be ensured that the sutures are placed on the upper side, ensuring that there are enough sutures during work.

[0012] The utility model is further configured as follows: a moving box is provided on the inner wall of the upper body, a moving block is fixedly connected to the front of the moving box, a sliding block is fixedly connected to the inner wall of the moving box, a sliding bar is provided on the inner wall of the sliding bar, a rotating wheel is fixedly connected to the front of the sliding bar, and a fixed block is fixedly connected to the back of the sliding bar.

[0013] By adopting the above technical solution and providing a moving box, it can be ensured that the moving block and the fixed block can better fix the suture.

[0014] The utility model is further configured as follows: a bobbin is fixedly connected to the inner wall of the bobbin box, and a wire inlet hole is opened on the front side of the bobbin box.

[0015] By adopting the above technical solution and setting a thread reel, the sutures can be arranged to ensure the continuity of the sutures.

[0016] The utility model is further configured as follows: a first motor is fixedly connected to the inner wall of the motor box, a power shaft is fixedly connected to the front of the first motor, and a belt is provided on the outer surface of the power shaft.

[0017] By adopting the above technical solution and arranging a motor, power can be provided for the slide bar to ensure the movement of the moving box.

[0018] The utility model is further configured as follows: a spring is fixedly connected to the inner wall of the wire clamp box, a movable clamp is fixedly connected to the back of the spring, and a fixed clamp is fixedly connected to the inner wall of the wire clamp box.

[0019] By adopting the above technical solution and providing a movable clamp, the suture can be fixed to ensure the normal outlet of the working suture.

[0020] The utility model is further configured as follows: a button is fixedly connected to one side of the control panel, and a display screen is fixedly connected to one side of the control panel.

[0021] By adopting the above technical solution and setting a control panel, the device can be controlled to ensure stable operation of the device.

[0022] The utility model is further configured as follows: a connecting column is fixedly connected to one side surface of the roller, and a scraper is fixedly connected to the upper surface of the connecting column.

[0023] By adopting the technical solution and arranging a scraper, thread ends on the workbench can be removed to ensure that the workbench is clean.

[0024] The utility model is further configured as follows: a second motor is fixedly connected to the upper surface of the flat plate, and a gear is fixedly connected to the other side surface of the second motor.

[0025] By adopting the above technical solution and providing a second motor, the movement of the scraper can be ensured, making it easier to clean the thread ends on the workbench.

[0026] The beneficial effects of the utility model are as follows: by setting an upper body, a workbench and a control panel, the device is controlled by the control panel to work, and then the movable clamp and the fixed clamp can clamp the suture, the setting of the spring can loosen the suture to ensure the stability of the suture, the fixed block and the movable block can fix the suture, making the thread cutting more stable, ensuring the stability of the device, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the axonometric structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the workbench of the utility model;

[0030] Figure 3 This is a schematic diagram of the upper machine body structure of the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the motor box of the utility model.

[0032] In the figure, 1, workbench; 2, support column; 3, upper body; 4, bobbin box; 5, motor box; 6, wire clamp box; 7, control board; 8, rolling groove; 9, roller; 10, connecting rod; 11, flat plate; 12, gear shaft; 13, collecting groove; 14, working hole; 15, wire plate; 16, wire column; 17, moving box; 18, moving block; 19, slider; 20, slide bar; 21, rotating wheel; 22, fixed block; 23, bobbin; 24, wire entry hole; 25, first motor; 26, power shaft; 27, belt; 28, spring; 29, movable clamp; 30, fixed clamp; 31, button; 32, display screen; 33, connecting column; 34, scraper; 35, second motor; 36, gear. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0034] Reference Figure 1-4A thread loosening device for a sewing machine comprises a workbench 1, a collecting groove 13 is provided on the upper surface of the workbench 1, a working hole 14 is provided on the upper surface of the workbench 1, by setting the collecting groove, the thread ends on the workbench can be collected to ensure the cleanliness of the workbench, a support column 2 is fixedly connected to the front of the workbench 1, a thread plate 15 is fixedly connected to the upper surface of the support column 2, a thread column 16 is fixedly connected to the upper surface of the thread plate 15, by setting the thread plate and the thread column, it can be ensured that the suture is placed on the upper side to ensure that there is enough suture during work, an upper body 3 is fixedly connected to the back of the support column 2, a moving box 17 is provided on the inner wall of the upper body 3, a moving block 18 is fixedly connected to the front of the moving box 17, and a moving block 18 is fixedly connected to the moving box 17. The inner wall of the box 17 is fixedly connected with a slider 19, the inner wall of the slider 19 is provided with a slide bar 20, the front of the slide bar 20 is fixedly connected with a rotating wheel 21, and the back of the slider 19 is fixedly connected with a fixed block 22. By setting a mobile box, it can be ensured that the mobile block and the fixed block can better fix the suture. The upper surface of the upper body 3 is fixedly connected with a spool box 4, the inner wall of the spool box 4 is fixedly connected with a spool 23, and the front of the spool box 4 is provided with a wire entry hole 24. By setting the spool, the suture can be sorted to ensure the continuity of the suture. A motor box 5 is fixedly connected to one side of the upper body 3, the inner wall of the motor box 5 is fixedly connected with a first motor 25, and the front of the first motor 25 is fixedly connected with a movable A power shaft 26 is provided, and a belt 27 is provided on the outer surface of the power shaft 26. By providing a motor, power can be provided to the slide bar to ensure the movement of the mobile box. A wire clamp box 6 is provided inside the upper body 3. A spring 28 is fixedly connected to the inner wall of the wire clamp box 6. A movable clamp 29 is fixedly connected to the back of the spring 28. A fixed clamp 30 is fixedly connected to the inner wall of the wire clamp box 6. By providing the movable clamp, the suture can be fixed to ensure the normal outlet of the working suture. A control panel 7 is fixedly connected to one side of the support column 2. A button 31 is fixedly connected to one side of the control panel 7. A display screen 32 is fixedly connected to one side of the control panel 7. By providing the control panel, the device can be controlled to ensure the normal operation of the device. In order to ensure stable operation, a rolling groove 8 is provided on one side of the workbench 1, and a roller 9 is provided on the inner wall of the rolling groove 8. A connecting column 33 is fixedly connected to one side of the roller 9, and a scraper 34 is fixedly connected to the upper surface of the connecting column 33. By setting the scraper, the thread ends on the workbench can be removed to ensure the cleanliness of the workbench. A connecting rod 10 is fixedly connected to the other side of the roller 9, and a flat plate 11 is fixedly connected to one end of the connecting rod 10. A second motor 35 is fixedly connected to the upper surface of the flat plate 11, and a gear 36 is fixedly connected to the other side of the second motor 35. By setting the second motor, the movement of the scraper can be guaranteed, which is convenient for cleaning the thread ends on the workbench. A gear shaft 12 is fixedly connected to the inner wall of the workbench 1.

[0035] In the utility model, by setting the upper body 3, the workbench 1 and the control panel 7, the device is controlled by the control panel 7 to work, and then the movable clamp 29 and the fixed clamp 30 can clamp the suture, the setting of the spring 28 can make the suture loose, ensure the stability of the suture, the fixed block 22 and the movable block 18 can fix the suture, make the thread cutting more stable, ensure the stability of the device, and improve the practicality of the device.

[0036] 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 loosening device for a sewing machine, comprising a workbench (1), characterized in that: The front of the workbench (1) is fixedly connected to a support column (2), the back of the support column (2) is fixedly connected to an upper body (3), the upper surface of the upper body (3) is fixedly connected to a bobbin box (4), one side of the upper body (3) is fixedly connected to a motor box (5), a wire clamp box (6) is arranged inside the upper body (3), one side of the support column (2) is fixedly connected to a control panel (7), one side of the workbench (1) is provided with a rolling groove (8), the inner wall of the rolling groove (8) is provided with a roller (9), the other side of the roller (9) is fixedly connected to a connecting rod (10), one end of the connecting rod (10) is fixedly connected to a flat plate (11), and the inner wall of the workbench (1) is fixedly connected to a gear shaft (12).

2. A thread loosening device for a sewing machine according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with a collecting groove (13), and the upper surface of the workbench (1) is provided with a working hole (14).

3. The thread loosening device of a sewing machine according to claim 1, characterized in that: The upper surface of the support column (2) is fixedly connected to a wire plate (15), and the upper surface of the wire plate (15) is fixedly connected to a wire column (16).

4. The thread loosening device of a sewing machine according to claim 1, characterized in that: The inner wall of the upper machine body (3) is provided with a moving box (17), the front side of the moving box (17) is fixedly connected with a moving block (18), the inner wall of the moving box (17) is fixedly connected with a sliding block (19), the inner wall of the sliding block (19) is provided with a sliding rod (20), the front side of the sliding rod (20) is fixedly connected with a rotating wheel (21), and the back side of the sliding block (19) is fixedly connected with a fixed block (22).

5. The thread loosening device of a sewing machine according to claim 1, characterized in that: A bobbin (23) is fixedly connected to the inner wall of the bobbin box (4), and a wire entry hole (24) is provided on the front side of the bobbin box (4).

6. The thread loosening device of a sewing machine according to claim 1, characterized in that: A first motor (25) is fixedly connected to the inner wall of the motor box (5), a power shaft (26) is fixedly connected to the front of the first motor (25), and a belt (27) is provided on the outer surface of the power shaft (26).

7. The thread loosening device of a sewing machine according to claim 1, characterized in that: The inner wall of the wire clamp box (6) is fixedly connected to a spring (28), the back of the spring (28) is fixedly connected to a movable clamp (29), and the inner wall of the wire clamp box (6) is fixedly connected to a fixed clamp (30).

8. The thread loosening device of a sewing machine according to claim 1, characterized in that: A button (31) is fixedly connected to one side of the control panel (7), and a display screen (32) is fixedly connected to one side of the control panel (7).

9. The thread loosening device of a sewing machine according to claim 1, characterized in that: A connecting column (33) is fixedly connected to one side surface of the roller (9), and a scraper (34) is fixedly connected to the upper surface of the connecting column (33).

10. The thread loosening device of a sewing machine according to claim 1, characterized in that: A second motor (35) is fixedly connected to the upper surface of the flat plate (11), and a gear (36) is fixedly connected to the other side surface of the second motor (35).

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