Deviation correcting device for automatic root exposing machine

Abstract

The utility model discloses a deviation rectifying device for an automatic exposed root machine, which comprises a first driving component, a second driving component, a rotary drum, a deviation rectifying shaft, a worm and a plurality of groups of deviation rectifying components, the second driving component is connected with the deviation rectifying shaft, and the worm is fixed at the other tail end of the deviation rectifying shaft; the deviation rectifying assemblies are evenly distributed around the axis of the rotary drum, and the first driving component drives the rotary drum to rotate around the axis of the rotary drum and then drives the deviation rectifying assemblies to rotate in the circumferential direction along the worm. The second driving component drives the deviation rectifying shaft to rotate, the deviation rectifying shaft drives the deviation rectifying assembly to rotate, and the cloth to be sewn is rectified to the set position. The worm rotates to drive the first deviation rectifying gear and the second deviation rectifying gear to rotate, the deviation rectifying gears are conventional gears, the peripheral diameter of the rotary drum fixed to the deviation rectifying assembly can be reduced to 68 mm, a closed-loop motor is selected as a driving motor, and the rotation precision of the deviation rectifying shaft can be effectively controlled.

Description

Technical Field

[0001] This utility model belongs to the field of sewing technology, specifically relating to a correction device for an automatic sewing machine. Background Technology

[0002] An automatic sewing machine is a device for sewing underwear, mainly consisting of a sewing head, an expanding mechanism, a drive mechanism, and a correction mechanism. First, the underwear to be sewn is placed on the expanding mechanism for expansion. Then, the drive mechanism drives the underwear to rotate, causing it to pass through the sewing head for circular sewing. During this rotation, the underwear's position may shift. Therefore, the correction mechanism is needed to correct this shift, ensuring that it is sewn along the predetermined stitch line.

[0003] Patent CN220724503U discloses a correction device for a ring-shaped hem sewing machine. It uses a correction shaft to drive a drive wheel, which in turn drives a first driven wheel and a second driven wheel. Correction belts are installed on the first and second driven wheels to correct the fabric's deviation. However, the standard size of the helical gear used in this technical solution is relatively large, with an outer circumference of approximately 27.5 mm. This results in an overall correction device with an outer circumference of approximately 84 mm. This correction device is commonly used for sewing the hems of adult T-shirts. Because the hem circumference is relatively long, a larger correction device is required. However, when sewing smaller garments like underwear, the sewing machines used are different. If the larger correction device disclosed in patent CN220724503U is used, it occupies a large area, preventing the expansion mechanism from getting close enough to the sewing head, thus making it impossible for the sewing machine to sew small-sized underwear. Utility Model Content

[0004] This utility model discloses an automatic straightening machine with a straightening device. The worm gear rotates, which drives the first straightening gear and the second straightening gear to rotate. The straightening gear is a conventional gear, which can reduce the outer diameter of the rotating drum fixed on the straightening component to 68mm. Furthermore, the drive motor is a closed-loop motor, which can effectively control the accuracy of the straightening shaft rotation.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An automatic sewing machine's correction device comprises a first drive component, a second drive component, a rotating drum, a correction shaft, a worm gear, and several sets of correction components. The second drive component is connected to the correction shaft, and the worm gear is fixed to the other end of the correction shaft. The correction components are evenly distributed around the axis of the rotating drum. Each correction component includes a first correction gear and a correction wheel. The first correction gear is rotatably engaged with the worm gear. The first drive component drives the rotating drum to rotate around its own axis, which in turn drives the first correction gear to rotate circumferentially along the worm gear. The correction wheel is engaged with the first correction gear, and part of the correction wheel protrudes from the outer circumferential surface of the rotating drum. The second drive component drives the correction shaft to rotate, which in turn drives the worm gear to rotate. The worm gear sequentially transfers power to the first correction gear and the correction wheel. The rotation of the correction wheel corrects the fabric to be sewn to a set position.

[0007] Preferably, the straightening wheel consists of two fixed wheels, a second straightening gear, and a fixed shaft. The second straightening gear is located between the two fixed wheels, and the fixed shaft passes through the center of the fixed wheels and the straightening gear. The fixed wheels and the straightening gear are fixedly connected and can rotate around the fixed shaft.

[0008] More preferably, it also includes a correction belt, with an annular groove on the fixed wheel, and the correction belt is fixed in the annular groove.

[0009] More preferably, a support plate is fixed inside the rotating drum, a worm gear passes through the support plate, and the straightening ring and the first straightening gear are rotatably fixed on the support plate. Several fixing grooves are provided on the outer circumferential surface of the support plate, and the straightening bands on both sides of the straightening ring extend out of the fixing grooves.

[0010] More preferably, the correction band is a rubber ring or a silicone ring.

[0011] Preferably, when the correction components are arranged in two or more columns along the periphery of the roller, the correction wheels in adjacent columns are staggered and equally spaced.

[0012] More preferably, the portion of the correction belt protruding from the outer circumference of the rotating drum is parallel to the axis of the rotating drum.

[0013] Preferably, the first drive component includes a first closed-loop motor, a first synchronous pulley, a second synchronous pulley, a synchronous belt, and a rotating shaft. The first closed-loop motor is connected to the first synchronous pulley, the first synchronous pulley and the second synchronous pulley are connected by the synchronous belt, and the two ends of the rotating shaft are respectively connected to the second synchronous pulley and the rotating drum.

[0014] More preferably, the second drive component includes a second closed-loop motor and a coupling, with the correction shaft passing through the drum and the rotating shaft, and connected to the second closed-loop motor via the coupling.

[0015] Preferably, the straightening gear and the worm are connected in a perpendicular position.

[0016] Compared with the prior art, the present invention has the following technical advantages:

[0017] (1) This utility model uses a screw to transmit the correction power to the first correction gear, which drives the second correction gear to rotate, thereby driving the correction belt wound around it to move. With the cooperation of the first and second correction gears, the correction belt corrects the fabric. This utility model abandons the bulky helical gear structure and uses a smaller first gear and a second gear, combined with a closed-loop motor with higher control precision. While reducing the size of the rotating drum, it can more effectively correct the position of fabric with a small area.

[0018] (2) This utility model can set two or more rows of correction components along the periphery of the roller. The correction wheels between adjacent rows are staggered and equally spaced, which increases the contact points between the correction belt and the sewn fabric, and can better fix the fabric and correct it.

[0019] (3) This utility model only requires a worm gear to drive the rotation of the first correction gear, which in turn drives the rotation of the second correction gear. The power transmission path is short, the transmission efficiency is higher, the whole correction structure is simpler and more stable, the size is smaller, and it is easy to promote. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the present invention.

[0021] Figure 2 This is an exploded view (structural schematic diagram) of the present invention.

[0022] Figure 3 This is a structural schematic diagram of the present invention.

[0023] Figure 4 This is a structural schematic diagram of the present invention.

[0024] The components include: 1. Rotary drum; 2. Correcting shaft; 3. Worm gear; 4. First closed-loop motor; 5. First synchronous pulley; 6. Second synchronous pulley; 7. Synchronous belt; 8. Rotating shaft; 9. Second closed-loop motor; 10. Coupling; 11. First correcting gear; 12. Correcting wheel; 13. Fixed wheel; 14. Second correcting gear; 15. Fixed shaft; 16. Annular groove; 17. Correcting belt; 18. Support plate; 19. Fixed groove. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figures 1-4As shown, this utility model discloses an automatic alignment correction device for a machine, comprising a first drive component, a second drive component, a rotating drum 1, an alignment correction shaft 2, a worm gear 3, and ten sets of alignment correction components. The first drive component includes a first closed-loop motor 4, a first synchronous pulley 5, a second synchronous pulley 6, a synchronous belt 7, and a rotating shaft 8. The second drive component includes a second closed-loop motor 9 and a coupling 10. The first closed-loop motor 4 is rotatably connected to the first synchronous pulley 5, and the first synchronous pulley 5 is connected to the second synchronous pulley 6 via the synchronous belt 7. Both ends of the rotating shaft 8 are connected to the second synchronous pulley 6 and the rotating drum 1, respectively. The alignment correction shaft 12 is rotatable around its own axis and passes through the axis of the rotating drum 1 and the rotating shaft 8. It is rotatably connected to the second closed-loop motor 9 via the coupling 10, and the other end is fixed with a worm gear 3.

[0027] The correction assembly consists of a first correction gear 11 and a correction wheel 12. The correction wheel 12 consists of two fixed wheels 13, a second correction gear 14, and a fixed shaft 15. The second correction gear 14 is located between the two fixed wheels 13. The fixed shaft 15 passes through the central axis of the fixed wheel 13 and the second correction gear 14. The fixed wheel 13 and the second correction gear 14 are fixedly connected and can rotate together around the fixed shaft 15. The fixed wheel 13 has an annular groove 16 along its outer periphery. The annular groove 16 is coaxial with the fixed wheel 13. A correction belt 17 is fixed in the annular groove 16. The correction belt 17 can be a rubber ring or a silicone ring.

[0028] Two sets of parallel circular support plates 18 are fixed inside the rotating drum 1 for fixing the correction assembly. The worm 3 and the correction shaft 2 pass through the support plate 18. The first correction gear 11 is rotatably engaged with the worm 3. The first correction gear 11 is engaged with the second correction gear 14. The fixed shaft 15 on the correction wheel 12 is fixed non-rotatably on the support plate 18. On the outer circumference of the rotating drum 1, the same number of fixing grooves 19 as the correction wheel 12 are provided at equal intervals. The two correction belts 17 are partially extended out of the fixing grooves 19.

[0029] In this invention, ten sets of correction components are divided into two columns. The five correction components in each column are distributed at equal distances along the axis of the rotating drum 1, and the correction wheels 12 between the two columns are staggered and equally spaced.

[0030] When the first closed-loop motor 4 drives the rotating drum 1 to rotate around its own axis, the first corrective gear 11 meshes with the worm 3 because the correction assembly is fixed on the support plate 18 inside the rotating drum 1. The rotating drum 1 rotates, causing the first corrective gear 11 to move circumferentially around the worm 3. Then the entire correction assembly moves circumferentially along the worm 3. When the second closed-loop motor 9 drives the correction shaft 2 to rotate, the worm 3 on the correction shaft 2 drives the first corrective gear 11 to rotate. Then the second corrective gear 14, which is meshed with the first corrective gear 11, also rotates. The second corrective gear 14 is fixedly connected to the fixed wheel 13, and the fixed wheel 13 also rotates. Finally, the correction belt 17 rotates. The correction wheel 12 is set parallel to the axis of the rotating drum 1, so that the correction belt 17 can pull the fabric along the axis of the rotating drum 1 to achieve the purpose of correcting the position of the fabric.

[0031] In practical application, the first closed-loop motor 4 drives the rotating drum 1 to rotate. The rotating drum 1 contacts the fabric to be sewn, feeding the fabric on the expansion mechanism to the sewing head for sewing. The sewing machine has a correction light in the vertical direction. The fabric to be sewn must be in contact with the correction light and cannot pass through or move away from it. When the fabric deviates from the correction light, the second closed-loop motor 9 controls the correction shaft 2 to rotate counterclockwise, which in turn drives the first correction gear 11 and the second correction gear 14 to rotate counterclockwise, and drives the correction belt 17 to rotate counterclockwise, pulling the fabric back to the correction light. When the fabric passes through the correction light, the second closed-loop motor 9 controls the correction shaft 2 to rotate clockwise, which in turn drives the first correction gear 11 and the second correction gear 14 to rotate clockwise, and drives the correction belt 17 to rotate clockwise, pulling the excess part of the fabric back to the point of contact with the correction light. The corrective belt uses friction to pull the fabric, thereby correcting its position.

Claims

1. A correction device for an automatic root-pointing machine, characterized in that: The device includes a first drive component, a second drive component, a rotating drum, a correction shaft, a worm gear, and several sets of correction components. The second drive component is connected to the correction shaft, and the worm gear is fixed to the other end of the correction shaft. The correction components are evenly distributed around the axis of the rotating drum. Each correction component includes a first correction gear and a correction wheel. The first correction gear is rotatably engaged with the worm gear. The first drive component drives the rotating drum to rotate around its own axis, which in turn drives the first correction gear to rotate circumferentially along the worm gear. The correction wheel is engaged with the first correction gear, and part of the correction wheel protrudes from the outer circumferential surface of the rotating drum. The second drive component drives the correction shaft to rotate, which in turn drives the worm gear to rotate. The worm gear transfers power sequentially to the first correction gear and the correction wheel. The rotation of the correction wheel corrects the fabric to be sewn to a set position.

2. The automatic alignment device for a root-pointing machine according to claim 1, characterized in that: The straightening wheel consists of two fixed wheels, a second straightening gear, and a fixed shaft. The second straightening gear is located between the two fixed wheels, and the fixed shaft passes through the center of the fixed wheels and the straightening gear. The fixed wheels and the straightening gear are fixedly connected and can rotate around the fixed shaft.

3. The automatic alignment device for a root-pointing machine according to claim 2, characterized in that: It also includes a correction belt, with an annular groove on the fixed wheel, and the correction belt is fixed in the annular groove.

4. The automatic alignment device for a root-pointing machine according to claim 3, characterized in that: A support plate is fixed inside the rotating drum. A worm gear passes through the support plate. The straightening ring and the first straightening gear are rotatably fixed on the support plate. Several fixing grooves are provided on the outer circumference of the support plate. The straightening belts on both sides of the straightening ring extend out of the fixing grooves.

5. The automatic alignment device for a root-pointing machine according to claim 3, characterized in that: The alignment belt is a rubber or silicone ring.

6. The automatic alignment device for a root-pointing machine according to claim 1, characterized in that: When the correction components are arranged in two or more columns around the periphery of the roller, the correction wheels in adjacent columns are staggered and spaced equally.

7. The automatic alignment device for a root-pointing machine according to claim 4, characterized in that: The portion of the correction belt that protrudes from the outer circumference of the rotating drum is parallel to the axis of the rotating drum.

8. The automatic alignment device for a root-pointing machine according to claim 1, characterized in that: The first drive component includes a first closed-loop motor, a first synchronous pulley, a second synchronous pulley, a synchronous belt, and a rotating shaft. The first closed-loop motor is connected to the first synchronous pulley, the first synchronous pulley and the second synchronous pulley are connected by the synchronous belt, and the two ends of the rotating shaft are connected to the second synchronous pulley and the rotating drum, respectively.

9. The automatic alignment device for a root-pointing machine according to claim 8, characterized in that: The second drive component includes a second closed-loop motor and a coupling. The correction shaft passes through the rotating drum and the rotating shaft, and is connected to the second closed-loop motor through the coupling.

10. The automatic alignment device for a root-pointing machine according to claim 1, characterized in that: The straightening gear is connected to the worm gear in a perpendicular position.

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