Alignment type rotary sewing machine

Abstract

The invention relates to the technical field of sewing machines, in particular to an alignment type rotary sewing machine which comprises a base support and a sewing table detachably arranged on the base support. The lower cross beam is fixedly arranged on the base support and located below the sewing table, the upper cross beam is arranged at the end of the lower cross beam and extends upwards to the position above the sewing table, and a rotating shuttle wheel base penetrating through the sewing table is fixedly arranged at the other end of the lower cross beam. A rotary sewing machine head is arranged at the position, corresponding to the rotary shuttle wheel base, of the upper cross beam, during sewing, the rotary shuttle wheel base and the rotary sewing machine head rotate synchronously for sewing, and sewing threads with the same angle are obtained on the fabric.

Description

Technical Field

[0001] The invention relates to the technical field of sewing machines, and in particular to an alignment type rotary sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to sew on the sewing material, forming one or more stitches and sewing one or more layers of sewing material together. Sewing machines are divided into manual sewing machines and automatic sewing machines. Most of the sewing machines used in textile factories are automatic sewing machines. They can automatically sew the sewing materials placed on the module through program control. The sewing speed is fast, the effect is good, and the scrap rate is low.

[0003] Although the above-mentioned prior art can solve the corresponding technical problems, it still has certain defects: the existing sewing machine can quickly sew fabrics through the sewing machine head and the shuttle wheel. When sewing arc-shaped seams, it is necessary to rotate the sewing machine head and move the mold to achieve the sewing of the arc-shaped seams. There are many sewing steps and the operation is relatively cumbersome. At the same time, when the sewing machine head rotates, the shuttle wheel set under the sewing table remains fixed in place, which will cause the shuttle wheel and the sewing machine head to be misaligned during the sewing process, thereby causing the seam angles to be different after sewing, the strength after sewing is uneven, and the aesthetics is poor. Summary of the invention

[0004] The object of the present invention is to provide an alignment type rotary sewing machine which has simple arc-shaped suture sewing operation, beautiful sewn products with high strength, in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an alignment type rotary sewing machine, comprising a base bracket and a sewing table detachably arranged on the base bracket, a sewing device is fixedly provided on the base bracket, the sewing device comprises a lower crossbeam fixedly provided on the base bracket and located below the sewing table, and an upper crossbeam arranged at the end of the lower crossbeam and extending upward to above the sewing table, a rotating shuttle wheel base penetrating the sewing table is fixedly provided on the other end of the lower crossbeam, a rotating sewing head is provided on the upper crossbeam at a corresponding position of the rotating shuttle wheel base, and during sewing, the rotating shuttle wheel base and the rotating sewing head rotate synchronously to sew, so as to obtain sewing lines with the same angle on the fabric.

[0006] A further improvement is that a template frame is slidably provided on the sewing table.

[0007] A further improvement is that a transverse rod is slidably provided on the sewing table, and the side walls of the template frame are fixedly arranged on the side walls of the transverse rod.

[0008] A further improvement is that: a longitudinal moving cylinder with a top extending out of the sewing table is provided on the bottom surface of the sewing table, and the top surface of the longitudinal moving cylinder is fixedly connected to the bottom surface of the transverse moving rod.

[0009] Further improvement is that the rotating shuttle wheel base includes a rotating motor fixedly arranged on the base bracket and a rotating chassis movably engaged with the base bracket, a power belt is arranged between the side wall of the rotating chassis and the rotating shaft of the rotating motor, a shuttle wheel device is arranged on the rotating chassis, and a rotating table flush with the sewing table surface is fixed on the upper surface of the shuttle wheel device.

[0010] A further improvement is that the shuttle wheel device includes a shuttle wheel motor arranged between the rotating chassis and the rotating table and a transmission cam arranged on the rotating shaft of the shuttle wheel motor, a shuttle wheel penetrating the rotating table is provided below the rotating table, and the center of the shuttle wheel is sleeved on the outer wall of the end of the transmission cam.

[0011] A further improvement is that a first rotation sensor is provided at the bottom of the rotating chassis.

[0012] A further improvement is that the rotary sewing machine head comprises a rotary machine head arranged on an upper crossbeam and a rotary seat penetrating and movably engaged with the bottom of the rotary machine head, and a sewing machine head is arranged below the rotary seat.

[0013] A further improvement is that a second rotating motor is arranged in the rotating head, and a second power belt is arranged between the rotating shaft of the second rotating motor and the outer wall of the top of the rotating seat.

[0014] A further improvement is that a second rotation sensor is also provided at the top of the rotating seat.

[0015] A further improvement is that an air blower is fixedly provided on the side wall at the bottom of the sewing machine head.

[0016] After adopting the above technical scheme, the beneficial effect of the present invention is as follows: when the present invention is sewing fabrics, if it is necessary to process arc-shaped seams, the second rotating motor can be used in conjunction with the second power belt to drive the sewing machine head to rotate, and at the same time, the rotating motor of the rotating shuttle wheel base cooperates with the power belt to drive the rotating chassis and the rotating table to rotate, and synchronously drive the shuttle wheel to rotate, and then directly form an arc-shaped seam through the rotating sewing head. At the same time, the sewing head and the shuttle wheel are always kept aligned on the same vertical line during the sewing process, so that the sewn seam will not be stretched to one side and skewed due to the misalignment of the shuttle wheel and the sewing head. The seam routing is more beautiful, and at the same time, the seam strength after sewing is uniform and not easy to crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 paying creative labor.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the sewing machine of the present invention; Figure 2 It is a structural schematic diagram of the sewing machine of the present invention from the front view; Figure 3 It is a three-dimensional structural schematic diagram of the sewing device of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the rotating shuttle wheel base of the present invention; Figure 5 It is a structural schematic diagram of the rotary shuttle wheel base of the present invention from the rear view; Figure 6 It is a three-dimensional structural schematic diagram of the rotary sewing machine head of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the rotary sewing machine head of the present invention after removing part of the rotary machine head. DETAILED DESCRIPTION

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

[0020] See also Figure 1As shown, the technical solution adopted in this specific embodiment is: an alignment type rotary sewing machine, comprising a base bracket 1 and a sewing table 2 detachably arranged on the base bracket 1, a sewing device 3 is fixedly arranged on the base bracket 1, the sewing device 3 comprises a lower crossbeam 31 fixedly arranged on the base bracket 1 and located below the sewing table 2, and an upper crossbeam 32 arranged at the end of the lower crossbeam 31 and extending upward to above the sewing table 2, a rotating shuttle wheel base 33 penetrating the sewing table 2 is fixedly arranged on the other end of the lower crossbeam 31, the rotating shuttle wheel base 33 comprises a rotating motor 335 fixedly arranged on the base bracket 1 and a rotating chassis 334 movably engaged with the base bracket 1, the side wall of the rotating chassis 334 and the rotating motor A power belt 336 is provided between the rotating shafts 335, a shuttle wheel device is provided on the rotating chassis 334, and the shuttle wheel device includes a shuttle wheel motor 332 arranged between the rotating chassis 334 and the rotating table 331 and a transmission cam 333 arranged on the rotating shaft of the shuttle wheel motor 332. A shuttle wheel 338 penetrating the rotating table 331 is provided below the rotating table 331, and the center of the shuttle wheel 338 is sleeved on the outer wall of the end of the transmission cam 333. A rotating table 331 flush with the surface of the sewing table 2 is fixedly provided on the upper surface of the shuttle wheel device, and a rotating sewing machine head 34 is provided at a corresponding position of the upper crossbeam 32 located at the rotating shuttle wheel base 33. The rotating sewing machine head 34 includes a rotating machine head 341 arranged on the upper crossbeam 32 and a rotating machine head 34 penetrating and The rotating seat 342 is movably engaged with the bottom of the rotating head 341, and a sewing head 343 is provided under the rotating seat 342. When sewing, the rotating shuttle wheel base 33 and the rotating sewing head 34 rotate synchronously to sew, so as to obtain sewing lines with the same angle on the fabric. When in use, the fabric to be sewn is placed on the sewing table 2, and the yarn in the yarn bobbin is pulled out and wound into the rotating part of the shuttle wheel 338, and at the same time, it is made to pass through the upper end of the shuttle wheel 338 and stretch upward, and is hooked by the sewing head 343 of the rotating sewing head 34. Subsequently, the fabric is moved horizontally along the sewing table 2 to between the rotating shuttle wheel base 33 of the sewing device 3 and the rotating sewing head 34, and the sewing head 343 is started, so that the sewing head 343 can sew the fabric, and the sewing head 343 is used to sew the fabric. The shuttle wheel motor 332 rotates to output the rotational force to the transmission cam shaft 333, so that it drives the shuttle wheel 338 to rotate, thereby outputting the yarn. When sewing arc-shaped stitches, the rotary head 341 can be rotated to drive the sewing machine head 343 to rotate synchronously, and then the sewing machine head 343 can be rotated along the sewing table 2, thereby generating an arc-shaped stitch. If the curvature of the stitch needs to be adjusted, the fabric can be manually pulled to change the curvature of the stitch. When sewing arc-shaped stitches, when the rotary head 341 drives the sewing machine head 343 to rotate, the rotary motor 335 can be started to output power and output the power to the rotating chassis 334 through the power belt 336.Thus, the rotating chassis 334 rotates, thereby driving the shuttle wheel 338 and the rotating table 331 to rotate synchronously, and the rotation speed of the rotating motor 335 is controlled to be the same as the rotation speed of the rotating head 341. At this time, the shuttle wheel 338 can always be aligned with the sewing head 343, so that the sewing thread will not be stretched to one side and skewed due to the misalignment of the shuttle wheel 338 and the sewing head 343. The stitching line is more beautiful, and the strength of the sewn thread is uniform and not easy to crack. At the same time, the integrally cast textile The lower crossbeam 31 and the upper crossbeam 32 are manufactured and welded together, which effectively improves the strength of the upper crossbeam 31 and the lower crossbeam 32 during sewing, so that they are not easy to shake and sway during sewing. A thread break detector can be installed in the shuttle wheel 338. When the yarn is broken, the thread break detector detects it and automatically stops the sewing machine. Double-layer bearings are provided at the connection between the rotating chassis 334 and the base bracket 1 and at the connection between the rotating seat 342 and the rotating head 341. The rigidity is better, it is not easy to be damaged, and the rotation is smoother during use. The sewing table 2 is provided with a template frame 6 for sliding, which is conducive to placing the fabric into the template frame 6 for positioning, making the positioning more convenient, fast and accurate, and sliding more smoothly, avoiding the surface wrinkles caused by the friction between the fabric and the sewing table 2; The sewing table 2 is slidably provided with a transverse rod 4, and the side wall of the template frame 6 is fixedly arranged on the side wall of the transverse rod 4, which is conducive to accurately controlling the transverse movement trajectory of the template frame 6 through the transverse rod 4, thereby making the transverse movement of the template frame 6 more accurate and more automated; The bottom surface of the sewing table 2 is provided with a longitudinal moving cylinder 5 with the top passing through the sewing table 2. The top surface of the longitudinal moving cylinder 5 is fixedly connected to the bottom surface of the transverse moving rod 4, which is conducive to controlling the forward and backward movement of the transverse moving rod 4 through the longitudinal cylinder 5, and then the template frame 6 can be moved forward and backward and left and right in cooperation with the transverse moving rod 4, which greatly improves the automation level and makes the fabric positioning more accurate. A first rotation sensor 337 is provided at the bottom of the rotating chassis 334, which is conducive to obtaining the rotation speed data of the rotating chassis 334 through the first rotation sensor 337, and then the rotation of the rotating chassis 334 can be more accurately controlled to make it better cooperate with the rotating head 341; The rotating head 341 is provided with a second rotating motor 345, and a second power belt 346 is provided between the rotating shaft of the second rotating motor 345 and the top outer wall of the rotating seat 342, which is conducive to outputting rotating power through the second rotating motor 345 and outputting power to the rotating seat 342 through the second belt 346, thereby making the automation higher and making it easier to control the rotating speed and angle; A second rotation sensor 347 is also provided at the top of the rotating seat 342. The second rotation sensor 347 is used to obtain the rotation speed data of the rotating seat 342, thereby more accurately controlling the rotation of the rotating seat 342 so that it can better cooperate with the rotating chassis 334. The bottom side wall of the sewing machine head 343 is fixedly provided with an air blower 344, which is conducive to blowing away thread ends and dust generated during the sewing process through an external blowing device of the air blower 344, thereby improving the sewing accuracy.

[0021] Working principle of the present invention: When the present invention is used, the fabric to be sewn is placed on the sewing table 2, and the yarn in the yarn bobbin is pulled out and wound into the rotating part of the shuttle wheel 338, and at the same time, it is made to pass through the upper end of the shuttle wheel 338 and stretched upward, and is hooked by the sewing head 343 of the rotating sewing machine head 34, and then, the fabric is moved horizontally along the sewing table 2 to between the rotating shuttle wheel base 33 of the sewing device 3 and the rotating sewing machine head 34, and the sewing machine head 343 is started, so that the sewing machine head 343 can sew the fabric, and cooperate with the rotation of the shuttle wheel motor 332 to output the rotational force to the transmission cam shaft 333, so that it drives the shuttle wheel 338 to rotate, thereby outputting the yarn. When sewing arc-shaped stitches, the rotating head 341 can be rotated at this time, driving the sewing machine head 343 to rotate synchronously, and then the sewing machine head 343 can be rotated along the sewing table 2, and the This produces an arc-shaped seam. If the curvature of the seam needs to be adjusted, the fabric can be manually pulled to change the curvature of the seam. When sewing an arc-shaped seam, when the rotating head 341 drives the sewing head 343 to rotate, the rotating motor 335 can be started to output power and output the power to the rotating chassis 334 through the power belt 336, so that the rotating chassis 334 rotates and drives the shuttle wheel 338 and the rotating table 331 to rotate synchronously, and the rotation speed of the rotating motor 335 is controlled to be the same as the rotation speed of the rotating head 341. At this time, the shuttle wheel 338 can always be aligned with the sewing head 343, so that the sewn seam will not be stretched to one side and skewed due to the misalignment of the shuttle wheel 338 and the sewing head 343. The seam routing is more beautiful, and the strength of the seam after sewing is uniform and not easy to crack.

[0022] The invention is intended to protect the structure of the product. The model of each component is not the content of the invention, and it is also a known technology. Any component on the market that can achieve the above functions of the invention can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in the invention. The contribution of the invention lies in the scientific combination of the components.

[0023] The above shows and describes the basic principles and main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents. Anything not described in detail in the present invention is a well-known technology of those skilled in the art.

Claims

1. An alignment type rotary sewing machine, comprising a base support (1) and a sewing table (2) detachably arranged on the base support (1), wherein a sewing device (3) is fixedly arranged on the base support (1), characterized in that: The sewing device (3) comprises a lower crossbeam (31) fixedly arranged on a base bracket (1) and located below a sewing table (2), and an upper crossbeam (32) arranged at the end of the lower crossbeam (31) and extending upward to above the sewing table (2); a rotating shuttle wheel base (33) penetrating the sewing table (2) is fixedly arranged on the other end of the lower crossbeam (31); a rotating sewing machine head (34) is arranged at a corresponding position of the rotating shuttle wheel base (33); during sewing, the rotating shuttle wheel base (33) and the rotating sewing machine head (34) rotate synchronously to sew, so that sewing lines with the same angle are obtained on the fabric.

2. An alignment type rotary sewing machine according to claim 1, characterized in that: A template frame (6) is slidably provided on the sewing table (2).

3. An alignment type rotary sewing machine according to claim 2, characterized in that: A transverse rod (4) is slidably provided on the sewing table (2), and the side wall of the template frame (6) is fixedly arranged on the side wall of the transverse rod (4).

4. An alignment type rotary sewing machine according to claim 3, characterized in that: The bottom surface of the sewing table (2) is provided with a longitudinal movable cylinder (5) whose top passes through the sewing table (2), and the top surface of the longitudinal movable cylinder (5) is fixedly connected to the bottom surface of the transverse movement rod (4).

5. The alignment type rotary sewing machine according to claim 1, characterized in that: The rotary shuttle wheel base (33) comprises a rotary motor (335) fixedly arranged on the base bracket (1) and a rotary chassis (334) movably engaged with the base bracket (1); a power belt (336) is provided between the side wall of the rotary chassis (334) and the rotary shaft of the rotary motor (335); a shuttle wheel device is provided on the rotary chassis (334); and a rotary table (331) flush with the surface of the sewing table (2) is fixedly provided on the upper surface of the shuttle wheel device.

6. An alignment type rotary sewing machine according to claim 5, characterized in that: The shuttle wheel device comprises a shuttle wheel motor (332) arranged between a rotating chassis (334) and a rotating platform (331), and a transmission convex shaft (333) arranged on a rotating shaft of the shuttle wheel motor (332); a shuttle wheel (338) penetrating the rotating platform (331) is provided below the rotating platform (331); and the center of the shuttle wheel (338) is sleeved on the outer wall of the end of the transmission convex shaft (333).

7. An alignment type rotary sewing machine according to claim 6, characterized in that: A first rotation sensor (337) is provided at the bottom of the rotating chassis (334).

8. An alignment type rotary sewing machine according to claim 1, characterized in that: The rotary sewing machine head (34) comprises a rotary machine head (341) arranged on the upper crossbeam (32) and a rotary seat (342) penetrating and movably engaged with the bottom of the rotary machine head (341), and a sewing machine head (343) is arranged below the rotary seat (342).

9. An alignment type rotary sewing machine according to claim 8, characterized in that: A second rotating motor (345) is disposed in the rotating machine head (341), and a second power belt (346) is disposed between the rotating shaft of the second rotating motor (345) and the top outer wall of the rotating seat (342).

10. An alignment type rotary sewing machine according to claim 8, characterized in that: A second rotation sensor (347) is also provided at the top of the rotating seat (342).

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