A driving motor for a sewing machine

Abstract

The present invention relates to a driving motor for a sewing machine applied to the driving motor field. When the front joint is docked with the right connecting pipe and the rear joint is docked with the left connecting pipe, the driving shaft rotates counterclockwise and the driving wheel is driven to rotate counterclockwise by the transmission belt, so that the driving pipe and the passive pipe can move to the left. At this time, the filter screen on the upper side of the passive pipe can filter dust in the air, and the air blown out of the driving pipe can clean the filter screen, so that the filter screen on the upper side of the passive pipe is always kept in an unblocked state. Similarly, when the driving pipe and the passive pipe move to the right, the filter screen on the upper side of the driving pipe filters dust in the air, and the air blown out of the passive pipe can clean the filter screen. Through the above arrangement, the air intake position through the filter screen can always be kept in an unblocked state, so that the air intake volume of the casing is stable, the heat dissipation effect of the casing is improved, and the stability and service life of the casing when in use are extended.

Description

Technical Field

[0001] The invention relates to a driving motor for a sewing machine, and in particular to a driving motor for a sewing machine applied in the field of driving motors. Background Art

[0002] The working environment of the sewing machine contains a lot of hair debris, so the driving motor of the sewing machine needs special attention during operation. While ventilating and dissipating heat, dust prevention treatment is required. The current dust prevention method is to install a filter at the ventilation port of the motor. Since too much hair debris is generated during the operation of the sewing machine, the filter will often be blocked and affect the heat dissipation effect of the motor, so further improvement is needed. Summary of the invention

[0003] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that since too much hair scraps are generated during the operation of the sewing machine, the filter screen will often be blocked and affect the heat dissipation effect of the motor.

[0004] In order to solve the above problems, the present invention provides a driving motor for a sewing machine, comprising a casing, a rotor shaft is rotatably connected inside the casing, one end of the rotor shaft is fixedly connected to a blowing fan, the other end of the rotor shaft is fixedly connected to an exhaust fan, the two ends of the casing are respectively fixedly connected to a right air duct and a left air duct, a filter box is fixedly connected to the middle of the top of the casing, a filter screen is fixedly connected to the top of the filter box, two symmetrically arranged sliding rods are fixedly connected between the inner walls of the two ends of the filter box, a passive tube and a driving tube are slidably connected between the two sliding rods, and a fixed portion between the passive tube and the driving tube is provided. The top ends of the passive tube and the driving tube are fixedly connected with a hood, the top ends of the hood are fixedly connected with a guide plate, the inner wall on the left side of the driving tube is rotatably connected with a driving shaft, the outer wall of the driving shaft is fixedly connected with a wind catcher, the bottom end of the driving tube is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a wheel sleeve, one end of the wheel sleeve is rotatably connected with a passive rotating shaft, the outer wall of the passive rotating shaft is fixedly connected with a driving wheel, one end of the driving shaft and one end of the passive rotating shaft are respectively fixedly connected with an upper pulley and a lower pulley, and the upper pulley and the lower pulley are rotatably connected through a transmission belt.

[0005] As a further improvement of the present application, a vertical plate is fixedly connected to the top of the filter box, the vertical plate is located on one side of the filter box, one end of the vertical plate is fixedly connected to a forward and reverse motor, and the output end of the forward and reverse motor is fixedly connected to a cross bar.

[0006] As a further improvement of the present application, one end of the cross bar is fixedly connected to a front joint, and the other end of the cross bar is fixedly connected to a rear joint.

[0007] As a further improvement of the present application, a left connecting pipe and a right connecting pipe are fixedly connected to the side walls of the filter box near the front joint and the rear joint, and one end of the left connecting pipe and one end of the driving pipe, as well as one end of the right connecting pipe and one end of the inner connecting pipe are both connected through the inner connecting pipe.

[0008] As another improvement of the present application, one end of the rear joint and one end of the left air duct, and one end of the front joint and one end of the right air duct are both connected through external connecting pipes.

[0009] As another improved supplement of the present application, a distance sensor is fixedly connected to the side wall of one end of the filter box, the distance sensor is located on the front side of the passive tube, and the distance sensor is electrically connected to the wheel sleeve and the forward and reverse motors.

[0010] As another improved supplement of the present application, the diameter of the upper pulley is smaller than the diameter of the lower pulley.

[0011] As another improved supplement of the present application, both the inner connecting pipe and the outer connecting pipe are made of flexible materials.

[0012] To sum up, when the front joint is docked with the right pipe and the rear joint is docked with the left pipe, the driving shaft rotates counterclockwise to drive the driving wheel to rotate counterclockwise through the transmission belt, so that the driving pipe and the passive pipe can move to the left. At this time, the filter on the upper side of the passive pipe can filter dust in the air, and the air blown out by the driving pipe can clean the filter, so that the filter on the upper side of the passive pipe is always kept in an unblocked state. Similarly, when the driving pipe and the passive pipe move to the right, the filter on the upper side of the driving pipe filters dust in the air, and the air blown out by the passive pipe can clean the filter. Through the above arrangement, the air intake position through the filter can always be kept in an unblocked state, so that the air intake volume of the casing is stable, the heat dissipation effect of the casing is improved, and the stability and service life of the casing during use are extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front cross-sectional view of the housing and the filter box in the first and second embodiments of the present application;

[0014] Figure 2 It is a front cross-sectional view of the passive tube and the driving tube in the first and second embodiments of the present application;

[0015] Figure 3 It is a side cross-sectional view of the driving pipe in the first and second embodiments of the present application;

[0016] Figure 4 This is a state diagram of the passive tube taking in air and the driving tube exhausting air in the first embodiment of the present application;

[0017] Figure 5This is a state diagram of the passive tube exhausting air and the driving tube intake air in the first embodiment of the present application;

[0018] Figure 6 It is a top view of the filter box in the first and second embodiments of the present application;

[0019] Figure 7 This is a state diagram of the front joint being connected to the left connecting pipe in the first and second embodiments of the present application.

[0020] Description of the numbers in the figure:

[0021] 1. Casing; 101. Rotor shaft; 2. Blowing fan; 3. Exhaust fan; 4. Right air duct; 5. Left air duct; 6. Filter box; 601. Filter; 7. Sliding rod; 8. Passive tube; 9. Driving tube; 10. Cover; 11. Guide plate; 12. Driving shaft; 1201. Wind catcher; 13. Electric telescopic rod; 14. Upper pulley; 15. Wheel sleeve; 16. Passive shaft; 1601. Driving wheel; 17. Vertical plate; 18. Forward and reverse motors; 19. Cross bar; 20. Front joint; 21. Rear joint; 22. Left connecting pipe; 23. Transmission belt; 24. Right connecting pipe; 25. Inner connecting pipe; 26. Distance sensor; 27. Lower pulley; 28. Outer connecting pipe. DETAILED DESCRIPTION

[0022] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0023] The first implementation method:

[0024] Figure 1-7A driving motor for a sewing machine is shown, comprising a casing 1, a rotor shaft 101 is rotatably connected inside the casing 1, a blowing fan 2 is fixedly connected to one end of the rotor shaft 101, an exhaust fan 3 is fixedly connected to the other end of the rotor shaft 101, a right air duct 4 and a left air duct 5 are respectively fixedly connected to the two ends of the casing 1, a filter box 6 is fixedly connected to the middle of the top of the casing 1, a filter screen 601 is fixedly connected to the top of the filter box 6, two symmetrically arranged sliding rods 7 are fixedly connected between the inner walls of the two ends of the filter box 6, a passive tube 8 and a driving tube 9 are slidably connected between the two sliding rods 7, the passive tube 8 and the driving tube 9 are fixedly connected, and the tops of the passive tube 8 and the driving tube 9 are fixedly connected. They are all fixedly connected with a hood opening 10, the top of the hood opening 10 is fixedly connected with a guide plate 11, the inner wall on the left side of the driving tube 9 is rotatably connected with a driving shaft 12, the outer wall of the driving shaft 12 is fixedly connected with a wind catching plate 1201, the bottom end of the driving tube 9 is fixedly connected with an electric telescopic rod 13, the telescopic end of the electric telescopic rod 13 is fixedly connected with a wheel sleeve 15, one end of the wheel sleeve 15 is rotatably connected with a passive rotating shaft 16, the outer wall of the passive rotating shaft 16 is fixedly connected with a driving wheel 1601, one end of the driving shaft 12 and one end of the passive rotating shaft 16 are respectively fixedly connected with an upper pulley 14 and a lower pulley 27, and the upper pulley 14 and the lower pulley 27 are rotatably connected through a transmission belt 23.

[0025] A vertical plate 17 is fixedly connected to the top of the filter box 6, and the vertical plate 17 is located on one side of the filter box 6. One end of the vertical plate 17 is fixedly connected to a forward and reverse motor 18, and the output end of the forward and reverse motor 18 is fixedly connected to a cross bar 19, one end of the cross bar 19 is fixedly connected to a front joint 20, and the other end of the cross bar 19 is fixedly connected to a rear joint 21. A left pipe 22 and a right pipe 24 are fixedly connected to the side wall of the filter box 6 near the front joint 20 and the rear joint 21. One end of the left pipe 22 and one end of the driving pipe 9, and one end of the right pipe 24 and one end of the inner connecting pipe 25 are both connected through the inner connecting pipe 25, and one end of the rear joint 21 and one end of the left air duct 5, and one end of the front joint 20 and one end of the right air duct 4 are all connected through the outer connecting pipe 28.

[0026] The forward and reverse motor 18 drives the crossbar 19 to rotate, so that the front joint 20 is connected to the right pipe 24, and the rear joint 21 is connected to the left pipe 22. The rotor shaft 101 rotates and under the action of the blowing fan 2 and the exhaust fan 3, the external air enters the interior of the housing 1 through the passive pipe 8 and the right air pipe 4, and is discharged to the outside through the left air pipe 5 and the driving pipe 9, which plays a role in heat dissipation for the housing 1;

[0027] At the same time, the wind-catching plate 1201 drives the driving shaft 12 to rotate counterclockwise, and the driving shaft 12 drives the driving wheel 1601 to rotate counterclockwise through the transmission belt 23. At the same time, the electric telescopic rod 13 is started to drive the driving wheel 1601 to move downward and closely adhere to the inner wall of the bottom end of the filter box 6, so that the driving pipe 9 and the passive pipe 8 can move to the left.

[0028] At this time, the filter 601 on the upper side of the passive tube 8 can filter the dust in the air, and the air blown out by the driving tube 9 can clean the filter 601. During the movement of the driving tube 9 and the passive tube 8 to the left, the filter 601 on the upper side of the passive tube 8 is always kept in an unblocked state.

[0029] Similarly, when the driving pipe 9 and the passive pipe 8 move to the leftmost side of the filter screen 601, the forward and reverse motor 18 drives the crossbar 19 to rotate, so that the front joint 20 is connected to the left pipe 22, and the rear joint 21 is connected to the right pipe 24. At this time, the external air enters the interior of the housing 1 through the right air duct 4 and the driving pipe 9, and is discharged to the outside through the passive pipe 8 and the left air duct 5;

[0030] At the same time, the wind-catching plate 1201 drives the driving shaft 12 to rotate clockwise, and at the same time, the electric telescopic rod 13 is started to drive the driving wheel 1601 to move downward and closely contact the inner wall of the bottom end of the filter box 6, so that the driving pipe 9 and the passive pipe 8 can move to the right;

[0031] At this time, the filter 601 on the upper side of the driving tube 9 filters the dust in the air, and the air blown out by the passive tube 8 cleans the filter 601. During the movement of the driving tube 9 and the passive tube 8 to the right, the upper side of the driving tube 9 is always kept in an unblocked state.

[0032] Through the above arrangement, the air intake position entering the casing 1 through the filter 601 can always be kept in an unblocked state, so that the air intake volume of the casing 1 is stable, the heat dissipation effect of the casing 1 is improved, and the stability and service life of the casing 1 during use are extended.

[0033] The second implementation method:

[0034] Figure 1-3 and Figure 6-7 A driving motor for a sewing machine is shown. Different from the first embodiment, a distance sensor 26 is fixedly connected to the side wall of one end of the filter box 6. The distance sensor 26 is located on the positive side of the passive tube 8. The distance sensor 26 is electrically connected to the wheel sleeve 15 and the forward and reverse motor 18. Through the setting of the distance sensor 26, the moving positions of the driving tube 9 and the passive tube 8 can be monitored, and then the wheel sleeve 15 and the forward and reverse motor 18 can be adjusted. The diameter of the upper pulley 14 is smaller than the diameter of the lower pulley 27. Through the above setting, the driving shaft 12 can drive the driving wheel 1601 to rotate slowly when rotating, which is more conducive to controlling the moving distance of the passive tube 8 and the driving tube 9.

[0035] The inner connecting tube 25 and the outer connecting tube 28 are both made of flexible materials; through the above arrangement, interference with the movement of the passive tube 8, the driving tube 9 and the cross bar 19 is avoided.

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A driving motor for a sewing machine, comprising a housing (1), wherein a rotor shaft (101) is rotatably connected to the interior of the housing (1), characterized in that: One end of the rotor shaft (101) is fixedly connected to a blowing fan (2), and the other end of the rotor shaft (101) is fixedly connected to an exhaust fan (3). The two ends of the housing (1) are respectively fixedly connected to a right air duct (4) and a left air duct (5). The middle of the top of the housing (1) is fixedly connected to a filter box (6), and the top of the filter box (6) is fixedly connected to a filter screen (601). Two symmetrically arranged sliding rods (7) are fixedly connected between the inner walls of the two ends of the filter box (6). A passive tube (8) and a driving tube (9) are slidably connected between the two sliding rods (7). The passive tube (8) and the driving tube (9) are fixedly connected to each other. The tops of the passive tube (8) and the driving tube (9) are fixedly connected to a hood (10). The hood (10) is The top end is fixedly connected with a guide plate (11); the inner wall on the left side of the driving tube (9) is rotatably connected with a driving shaft (12); the outer wall of the driving shaft (12) is fixedly connected with a wind catcher (1201); the bottom end of the driving tube (9) is fixedly connected with an electric telescopic rod (13); the telescopic end of the electric telescopic rod (13) is fixedly connected with a wheel sleeve (15); one end of the wheel sleeve (15) is rotatably connected with a passive rotating shaft (16); the outer wall of the passive rotating shaft (16) is fixedly connected with a driving wheel (1601); one end of the driving shaft (12) and one end of the passive rotating shaft (16) are respectively fixedly connected with an upper belt pulley (14) and a lower belt pulley (27); the upper belt pulley (14) and the lower belt pulley (27) are rotatably connected via a transmission belt (23); A vertical plate (17) is fixedly connected to the top of the filter box (6), and the vertical plate (17) is located on one side of the filter box (6). One end of the vertical plate (17) is fixedly connected to a forward and reverse motor (18). The output end of the forward and reverse motor (18) is fixedly connected to a cross bar (19). One end of the cross bar (19) is fixedly connected to a front joint (20), and the other end of the cross bar (19) is fixedly connected to a rear joint (21). A left pipe (22) and a right pipe (24) are fixedly connected to the side wall of the filter box (6) near the front joint (20) and the rear joint (21). One end of the left pipe (22) and one end of the drive pipe (9), and one end of the right pipe (24) and one end of an inner connecting pipe (25) are both connected via the inner connecting pipe (25). One end of the rear joint (21) and one end of the left air duct (5), and one end of the front joint (20) and one end of the right air duct (4) are both connected via the outer connecting pipe (28).

2. A driving motor for a sewing machine according to claim 1, characterized in that: A distance sensor (26) is fixedly connected to the side wall of one end of the filter box (6); the distance sensor (26) is located on the front side of the passive tube (8); and the distance sensor (26) is electrically connected to the wheel sleeve (15) and the forward and reverse motors (18).

3. A driving motor for a sewing machine according to claim 1, characterized in that: The diameter of the upper pulley (14) is smaller than the diameter of the lower pulley (27).

4. A driving motor for a sewing machine according to claim 1, characterized in that: The inner connecting pipe (25) and the outer connecting pipe (28) are both made of flexible materials.

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