A sewing machine based on dynamic sewing force control and adjustment and its use method

Abstract

The invention discloses a sewing machine based on dynamic sewing force control and adjustment and a method for using the sewing machine. The invention relates to the technical field of sewing machines, and comprises a sewing machine body, wherein a transmission mechanism is arranged inside the sewing machine body, a needle bar thread taking-up mechanism is arranged at the front end of the transmission mechanism, a rotary hook thread hooking mechanism is arranged in the middle of the surface of the transmission mechanism, the needle bar thread taking-up mechanism comprises a limit assembly, a needle bar piercing assembly, a needle bar adjusting assembly and a thread taking-up assembly, and the inside of the limit assembly is movably connected with the surface of the needle bar piercing assembly. The invention has the advantages that: a first servo motor is controlled by a controller, thereby adjusting the rotation speed and the rotation direction of the servo motor, and then the rack column is meshed with the first gear, and the transmission is performed by the first servo motor, thereby driving the rod body to move up and down, and the height of the rod body is adjusted to a certain extent during the operation of the sewing machine, thereby achieving the effect of dynamically adjusting the sewing force of the sewing machine.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing machines, in particular to a sewing machine based on dynamic sewing force control and adjustment and a use method thereof. Background Art

[0002] As a mechanical device for sewing fabrics, sewing machines are widely used in industrial production and family life. With the development of the textile industry and the clothing industry, the demand for sewing machines has gradually increased, prompting the continuous innovation and improvement of sewing machine technology. In family life, sewing machines are widely used to sew clothes, household items, etc., providing convenience for people. In industrial production, sewing machines are one of the important equipment in the textile industry, used to produce clothing, shoes, hats, bags and other products. Sewing machines play an important role in modern society and are of great significance to improving production efficiency and improving the quality of life.

[0003] Traditional sewing machines usually use a fixed sewing force during the sewing process, which is difficult to adapt to changes in different fabrics and sewing requirements, resulting in poor sewing results or fabric damage. To this end, we propose a sewing machine based on dynamic sewing force control and adjustment and a method of using it. Summary of the invention

[0004] The object of the present invention is to provide a sewing machine based on dynamic sewing force control and regulation and a method of using the same.

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: the sewing machine based on dynamic sewing force control and adjustment comprises a sewing machine body, a transmission mechanism is arranged inside the sewing machine body, a needle bar thread taking-up mechanism is arranged at the front end of the transmission mechanism, a rotary shuttle thread hooking mechanism is arranged in the middle of the surface of the transmission mechanism, the needle bar thread taking-up mechanism comprises a limiting assembly, a needle bar piercing assembly, a needle bar adjusting assembly and a thread taking-up assembly, the interior of the limiting assembly is movably connected with the surface of the needle bar piercing assembly, the needle bar adjusting assembly is fixedly mounted on the surface of the needle bar piercing assembly, the inner wall of the thread taking-up assembly is connected to the inner wall of the needle bar piercing assembly The surfaces are connected, and the needle bar adjustment assembly includes a rack column, a U-shaped connecting block, a first gear, a transmission rod, a first servo motor, a connecting rod, a rocker and an arc disk. The surface of the rack column is meshed with the surface of the first gear, the inner wall of the first gear is connected to the surface of the transmission rod, both ends of the transmission rod are movably connected to the two sides of the inner wall of the U-shaped connecting block, the front end of the transmission rod passes through the interior of the U-shaped connecting block and is splined to the output end of the first servo motor, the front end of the connecting rod is connected to the rear end of the U-shaped connecting block, the rear end of the connecting rod is connected to the bottom end of the rocker, and the top end of the rocker is fixedly installed on the front side of the arc disk.

[0006] As a further solution of the present invention: the needle rod puncture assembly includes a rod body, a needle and a first wire loop, the bottom surface of the rod body is connected to the top of the needle, the first wire loop is fixedly installed on the lower surface of the rod body, and the rack column is fixedly installed in the middle of the rod body.

[0007] As a further solution of the present invention: the wire picking assembly includes a bidirectional connecting ring and a second wire ring, the interior of the bidirectional connecting ring is connected to the surface of the second wire ring, and the bottom end of the bidirectional connecting ring is connected to the surface of the rocker.

[0008] As a further solution of the present invention: the limit assembly includes a limit connection frame, a controller, a round rod, a mounting block and a clamping and fixing assembly, the upper and lower ends of the limit connection frame are provided with through holes for adapting to the rod body, the clamping and fixing assembly is fixedly installed in the through hole at the upper end of the limit connection frame, the controller is fixedly installed on the surface of the limit connection frame, the two ends of the round rod are respectively connected to the upper and lower ends of the back of the limit connection frame, and the inner wall of the mounting block is connected to the surface of the round rod.

[0009] As a further solution of the present invention: the clamping and fixing assembly includes a second servo motor, a transmission belt, a threaded rod, a threaded connecting ring, a movable connecting column and a clamping plate, the output end of the second servo motor is connected to one end of the transmission belt through a driving rod, the surface of the transmission belt is sleeved with the outer surface of the threaded connecting ring, the back side of the threaded connecting ring is movably connected to the front end of the movable connecting column, the surface of the threaded rod is threadedly connected to the inner wall of the threaded connecting ring, and the rear end of the threaded rod is movably connected to the surface of the clamping plate through a bearing.

[0010] As a further solution of the present invention: the transmission mechanism includes a transmission main rod, a convex groove block and a rocking and pushing assembly, the surface of the transmission main rod is connected to the inner wall of the convex groove block, and the surface of the convex groove block is provided with an oblique annular groove adapted to the top of the rocking and pushing assembly.

[0011] As a further solution of the present invention: the rock-push assembly includes an upper rocker arm, an electric telescopic rod, a lower rocker arm, a telescopic card column and a connecting and adjusting rod, the bottom end of the upper rocker arm is movably connected to the top end of the lower rocker arm, the bottom end of the upper rocker arm is provided with a card slot adapted to the lower rocker arm card plate, the electric telescopic rod is fixedly mounted on one side of the surface of the upper rocker arm, and the extending end of the electric telescopic rod passes through the interior of the upper rocker arm and contacts the card plate, the bottom end of the lower rocker arm is movably connected to one end of the connecting and adjusting rod through a movable column, the top surface of the lower rocker arm and the bottom surface of the upper rocker arm are both provided with through holes adapted to the telescopic card column, and the through holes provided on the top surface of the lower rocker arm are adapted to the protrusions provided on the surface of the telescopic card column, and a sliding groove is provided on one side of the surface of the connecting and adjusting rod.

[0012] As a further solution of the present invention: the rotary hook thread hooking mechanism includes a rack, a second gear column, a cylindrical rod, a rotary hook block, a support frame and a sliding rod. The surface of the rack is meshed and connected with the surface of the second gear column, one end of the cylindrical rod is connected to the surface of the second gear column, the other end of the cylindrical rod passes through the support frame and is connected to the interior of the rotary hook block, and one end of the sliding rod is adapted to a sliding groove opened on one side of the surface of the connecting adjusting rod.

[0013] In addition, the present invention also provides a method for using a sewing machine based on dynamic sewing force control and adjustment, comprising the following steps:

[0014] Step 1: The staff puts the cloth on the placement plate below the sewing machine body, starts the transmission mechanism to drive the main rod and the convex groove block to rotate, and then drives the upper rocker to swing left and right, and then connects the upper rocker and the lower rocker through the telescopic clamping column. The staff stretches the telescopic clamping column to align the clamping block on the telescopic clamping column with the through hole opened on the top surface of the lower rocker, and then rotates the telescopic clamping column to adjust the angle between the upper rocker and the lower rocker to a certain extent, and then starts the electric telescopic rod to squeeze and fix the clamping plate on the top surface of the lower rocker and the clamping groove opened on the bottom surface of the upper rocker, and pulls the clamping block on the surface of the telescopic clamping column out of the clamping groove opened on the surface of the lower rocker, so as to adjust the speed of the rack set on the connecting adjustment rod;

[0015] Step 2: By adjusting the speed of the rack, the rotation speed of the second gear column is controlled, and then the rotary hook block is regulated to make it better cooperate with the needle. The staff controls the controller to make the first servo motor work, drive the first gear column to rotate, and achieve the control and adjustment of the rack column height;

[0016] Step 3: After adjusting the rack column, the rod body can be adjusted at one end inside the limit connection frame, so that the needle can achieve a dynamic control effect during movement. When the sewing machine stops working, the entire rod body can be adjusted more accurately by clamping the fixing component.

[0017] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention controls the first servo motor through a controller, thereby adjusting the speed and rotation direction of the servo motor, and then meshing with the first gear through a rack column and transmitting through the first servo motor, thereby driving the rod body to move up and down. During the operation of the sewing machine, the height of the rod body is adjusted to a certain extent, thereby achieving the effect of dynamically adjusting the sewing force of the sewing machine.

[0019] The present invention connects the output end of the second servo motor with the movable connecting ring through a transmission belt, so that the threaded connecting ring drives the threaded rod to rotate, and then supports the threaded connecting ring through the movable connecting column arranged on the surface of the threaded connecting ring, so as to make the auxiliary threaded rod approach the inside of the limit connection frame, and drive the clamping plate to squeeze the rod body to fix it, so as to adjust the height of the rod body when the sewing machine stops working, so that the needle head can better adapt to the toughness of the required sewing fabric.

[0020] The present invention starts the transmission mechanism to drive the main rod and the convex groove block to rotate, thereby driving the upper rocker to swing left and right, and then connecting the upper rocker and the lower rocker through the telescopic clamping column, and aligning the clamping block on the telescopic clamping column with the through hole provided on the top surface of the lower rocker, so that the angle between the upper rocker and the lower rocker can be adjusted to a certain extent, and then the clamping plate on the top surface of the lower rocker and the clamping groove provided on the bottom surface of the upper rocker are squeezed and fixed by starting the electric telescopic rod, and the clamping block on the surface of the telescopic clamping column is pulled out of the clamping groove provided on the surface of the lower rocker, so that the rack arranged on the connecting adjusting rod can be adjusted in speed, so as to achieve better adaptation of the adjusted needle head and prevent de-threading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a transmission mechanism in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a limit assembly in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of a rack column in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of a limit connection frame in an embodiment of the present invention;

[0026] Figure 6 for Figure 5 A is a partial enlarged schematic diagram;

[0027] Figure 7 Schematic diagram of the lower rocker in an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the rotary hook block in an embodiment of the present invention.

[0029] In the figure: 1, sewing machine body; 2, transmission mechanism; 21, main rod; 22, convex groove block; 23, rocking and pushing assembly; 231, upper rocking rod; 232, electric telescopic rod; 233, lower rocking rod; 234, telescopic clamping column; 235, connecting adjustment rod; 3, needle bar thread taking-up mechanism; 31, limit assembly; 311, limit connection frame; 312, controller; 313, round rod; 314, mounting block; 315, clamping and fixing assembly; 3151, second servo motor; 3152, transmission belt; 3153, threaded rod; 3154, threaded connection ring; 3155, movable connection column; 3156, splint; 32, needle bar puncture assembly; 321, rod body; 322, needle; 323, first wire loop; 33, needle bar adjustment assembly; 331, rack column; 332, U-shaped connecting block; 333, first gear; 334, transmission rod; 335, first servo motor; 336, connecting rod; 337, rocker; 338, arc disk; 34, thread picking assembly; 341, two-way connecting ring; 342, second wire loop; 4, rotary hook thread hooking mechanism; 41, rack; 42, second gear column; 43, cylindrical rod; 44, rotary hook block; 45, support frame; 46, slide rod. DETAILED DESCRIPTION

[0030] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1, please refer to the attached Figure 1 -Attached Figure 8The present invention provides a technical solution: the sewing machine based on dynamic sewing force control and adjustment comprises a sewing machine body 1, a transmission mechanism 2 is arranged inside the sewing machine body 1, a needle bar thread taking-up mechanism 3 is arranged at the front end of the transmission mechanism 2, a rotary hook thread hooking mechanism 4 is arranged in the middle of the surface of the transmission mechanism 2, the needle bar thread taking-up mechanism 3 comprises a limiting component 31, a needle bar piercing component 32, a needle bar adjusting component 33 and a thread taking-up component 34, the inside of the limiting component 31 is movably connected with the surface of the needle bar piercing component 32, the needle bar adjusting component 33 is fixedly installed on the surface of the needle bar piercing component 32, the inner wall of the thread taking-up component 34 is connected with the surface of the needle bar piercing component 32, the needle bar adjusting component 33 comprises a rack column 331, a U-shaped connecting block 332, a first gear 333, a transmission rod 334, a first servo motor 335, a connecting rod 336, a rocker 337 and an arc disk 338. The surface of the rack column 331 is meshed with the surface of the first gear 333. The inner wall of the first gear 333 is connected to the surface of the transmission rod 334. Both ends of the transmission rod 334 are movably connected to the inner walls of the U-shaped connecting block 332. The front end of the transmission rod 334 passes through the interior of the U-shaped connecting block 332 and is splined to the output end of the first servo motor 335. The front end of the connecting rod 336 is connected to the rear end of the U-shaped connecting block 332. The rear end of the connecting rod 336 is connected to the bottom end of the rocker 337. The top end of the rocker 337 is fixedly mounted on the front side of the arc disk 338.

[0032] In this embodiment, the needle rod puncture assembly 32 includes a rod body 321, a needle 322 and a first wire loop 323. The bottom surface of the rod body 321 is connected to the top of the needle 322. The first wire loop 323 is fixedly installed on the lower surface of the rod body 321, and the rack column 331 is fixedly installed in the middle of the rod body 321.

[0033] In this embodiment, the wire picking assembly 34 includes a two-way connecting ring 341 and a second wire ring 342 , the interior of the two-way connecting ring 341 is connected to the surface of the second wire ring 342 , and the bottom end of the two-way connecting ring 341 is connected to the surface of the rocker 337 .

[0034] Specifically, the first servo motor 335 is controlled by the controller 312 to adjust the speed and rotation direction of the servo motor, and then the rack column 331 is engaged with the first gear 333 and transmitted by the first servo motor 335, thereby driving the rod body 321 to move up and down. During the operation of the sewing machine, the height of the rod body 321 is adjusted to a certain extent, thereby achieving the effect of dynamically adjusting the sewing force of the sewing machine.

[0035] Example 2, please refer to the attached Figure 1 -Attached Figure 8The present invention provides a technical solution: the sewing machine based on dynamic sewing force control and adjustment comprises a sewing machine body 1, a transmission mechanism 2 is arranged inside the sewing machine body 1, a needle bar thread taking-up mechanism 3 is arranged at the front end of the transmission mechanism 2, a rotary hook thread hooking mechanism 4 is arranged in the middle of the surface of the transmission mechanism 2, the needle bar thread taking-up mechanism 3 comprises a limiting component 31, a needle bar piercing component 32, a needle bar adjusting component 33 and a thread taking-up component 34, the inside of the limiting component 31 is movably connected with the surface of the needle bar piercing component 32, the needle bar adjusting component 33 is fixedly installed on the surface of the needle bar piercing component 32, the inner wall of the thread taking-up component 34 is connected with the surface of the needle bar piercing component 32, the needle bar adjusting component 33 comprises a rack column 331, a U-shaped connecting block 332, a first gear 333, a transmission rod 334, a first servo motor 335, a connecting rod 336, a rocker 337 and an arc disk 338. The surface of the rack column 331 is meshed with the surface of the first gear 333. The inner wall of the first gear 333 is connected to the surface of the transmission rod 334. Both ends of the transmission rod 334 are movably connected to the inner walls of the U-shaped connecting block 332. The front end of the transmission rod 334 passes through the interior of the U-shaped connecting block 332 and is splined to the output end of the first servo motor 335. The front end of the connecting rod 336 is connected to the rear end of the U-shaped connecting block 332. The rear end of the connecting rod 336 is connected to the bottom end of the rocker 337. The top end of the rocker 337 is fixedly mounted on the front side of the arc disk 338.

[0036] In this embodiment, the limit assembly 31 includes a limit connection frame 311, a controller 312, a round rod 313, a mounting block 314 and a clamping and fixing assembly 315. The upper and lower ends of the limit connection frame 311 are provided with through holes for adapting to the rod body 321. The clamping and fixing assembly 315 is fixedly installed in the through hole at the upper end of the limit connection frame 311. The controller 312 is fixedly installed on the surface of the limit connection frame 311. The two ends of the round rod 313 are respectively connected to the upper and lower ends of the back of the limit connection frame 311, and the inner wall of the mounting block 314 is connected to the surface of the round rod 313.

[0037] In this embodiment, the clamping and fixing assembly 315 includes a second servo motor 3151, a transmission belt 3152, a threaded rod 3153, a threaded connecting ring 3154, a movable connecting column 3155 and a clamp 3156. The output end of the second servo motor 3151 is connected to one end of the transmission belt 3152 through a driving rod, the surface of the transmission belt 3152 is sleeved with the outer surface of the threaded connecting ring 3154, the back side of the threaded connecting ring 3154 is movably connected to the front end of the movable connecting column 3155, the surface of the threaded rod 3153 is threadedly connected to the inner wall of the threaded connecting ring 3154, and the rear end of the threaded rod 3153 is movably connected to the surface of the clamp 3156 through a bearing.

[0038] Specifically, the output end of the second servo motor 3151 is connected to the threaded connecting ring 3154 through the transmission belt 3152, so that the threaded connecting ring 3154 drives the threaded rod 3153 to rotate, and then the movable connecting column 3155 set on the surface of the threaded connecting ring 3154 supports the threaded connecting ring 3154, so that the auxiliary threaded rod 3153 is approached to the inside of the limiting connecting frame 311, and the clamping plate 3156 is driven to squeeze the rod body 321 for fixing it, so that when the sewing machine stops working, the height of the rod body 321 can be adjusted to make the needle 322 better adapt to the toughness of the required sewing fabric.

[0039] Example 3, please refer to the attached Figure 1 -Attached Figure 8 The present invention provides a technical solution: the sewing machine based on dynamic sewing force control and adjustment comprises a sewing machine body 1, a transmission mechanism 2 is arranged inside the sewing machine body 1, a needle bar thread taking-up mechanism 3 is arranged at the front end of the transmission mechanism 2, a rotary hook thread hooking mechanism 4 is arranged in the middle of the surface of the transmission mechanism 2, the needle bar thread taking-up mechanism 3 comprises a limiting component 31, a needle bar piercing component 32, a needle bar adjusting component 33 and a thread taking-up component 34, the inside of the limiting component 31 is movably connected with the surface of the needle bar piercing component 32, the needle bar adjusting component 33 is fixedly installed on the surface of the needle bar piercing component 32, the inner wall of the thread taking-up component 34 is connected with the surface of the needle bar piercing component 32, the needle bar adjusting component 33 comprises a rack column 331, a U-shaped connecting block 332, a first gear 333, a transmission rod 334, a first servo motor 335, a connecting rod 336, a rocker 337 and an arc disk 338. The surface of the rack column 331 is meshed with the surface of the first gear 333. The inner wall of the first gear 333 is connected to the surface of the transmission rod 334. Both ends of the transmission rod 334 are movably connected to the inner walls of the U-shaped connecting block 332. The front end of the transmission rod 334 passes through the interior of the U-shaped connecting block 332 and is splined to the output end of the first servo motor 335. The front end of the connecting rod 336 is connected to the rear end of the U-shaped connecting block 332. The rear end of the connecting rod 336 is connected to the bottom end of the rocker 337. The top end of the rocker 337 is fixedly mounted on the front side of the arc disk 338.

[0040] In this embodiment, the transmission mechanism 2 includes a transmission main rod 21, a convex groove block 22 and a rocking and pushing assembly 23. The surface of the transmission main rod 21 is connected to the inner wall of the convex groove block 22. The surface of the convex groove block 22 is provided with an oblique annular groove adapted to the top of the rocking and pushing assembly 23.

[0041] The bottom end of the upper rocker arm 231 is movably connected to the top end of the lower rocker arm 233, and a card slot adapted to the card plate of the lower rocker arm 233 is provided at the bottom end of the upper rocker arm 231. The electric telescopic rod 232 is fixedly mounted on one side of the surface of the upper rocker arm 231, and the extended end of the electric telescopic rod 232 passes through the interior of the upper rocker arm 231 and contacts the card plate. The bottom end of the lower rocker arm 233 is movably connected to one end of the connecting and adjusting rod 235 through a movable column. The top surface of the lower rocker arm 233 and the bottom surface of the upper rocker arm 231 are both provided with a through hole adapted to the telescopic card column 234, and the through hole provided on the top surface of the lower rocker arm 233 is adapted to the protrusion provided on the surface of the telescopic card column 234, and a sliding groove is provided on one side of the surface of the connecting and adjusting rod 235.

[0042] In this embodiment, the rotary hook thread hooking mechanism 4 includes a rack 41, a second gear column 42, a cylindrical rod 43, a rotary hook block 44, a support frame 45 and a slide rod 46. The surface of the rack 41 is meshed and connected with the surface of the second gear column 42, one end of the cylindrical rod 43 is connected to the surface of the second gear column 42, and the other end of the cylindrical rod 43 passes through the support frame 45 and is connected to the interior of the rotary hook block 44. One end of the slide rod 46 is adapted to a slide groove opened on one side of the surface of the connecting adjustment rod 235.

[0043] Specifically, by starting the transmission mechanism 2, the main rod 21 and the convex groove block 22 are driven to rotate, thereby driving the upper rocker 231 to swing left and right, and then the upper rocker 231 and the lower rocker 233 are connected by the telescopic clamping column 234, and the clamping block on the telescopic clamping column 234 is aligned with the through hole opened on the top surface of the lower rocker 233, so that the angle between the upper rocker 231 and the lower rocker 233 can be adjusted to a certain extent, and then the electric telescopic rod 232 is started to squeeze and fix the clamping plate on the top surface of the lower rocker 233 with the clamping groove opened on the bottom surface of the upper rocker 231, and the clamping block on the surface of the telescopic clamping column 234 is pulled out of the clamping groove opened on the surface of the lower rocker 233, so that the rack 41 set on the connecting adjustment rod 235 can be adjusted in speed, so as to achieve better adaptation of the adjusted needle 322 and prevent de-threading.

[0044] Working principle:

[0045] Step 1, the staff puts the cloth on the placing plate below the sewing machine body 1, and drives the main rod 21 and the convex groove block 22 to rotate by starting the transmission mechanism 2, thereby driving the upper rocker 231 to swing left and right, and then connects the upper rocker 231 and the lower rocker 233 through the telescopic clamping column 234. The staff stretches the telescopic clamping column 234 to align the block on the telescopic clamping column 234 with the through hole opened on the top surface of the lower rocker 233, and then rotates the telescopic clamping column 234 to adjust the angle between the upper rocker 231 and the lower rocker 233 to a certain extent, and then starts the electric telescopic rod 232 to squeeze and fix the clamping plate on the top surface of the lower rocker 233 with the clamping groove opened on the bottom surface of the upper rocker 231, and pulls the clamping block on the surface of the telescopic clamping column 234 out of the clamping groove opened on the surface of the lower rocker 233, so as to achieve the speed adjustment of the rack 41 set on the connecting adjustment rod 235;

[0046] Step 2: By adjusting the speed of the rack 41, the rotation speed of the second gear column 42 is controlled, and then the rotary hook block 44 is regulated to make it better cooperate with the needle 322. The staff controls the controller 312 to make the first servo motor 335 work, drive the first gear column to rotate, and achieve the control and adjustment of the height of the rack column 331;

[0047] Step three, by adjusting the rack column 331, the rod body 321 can be adjusted at one end inside the limit connection frame 311, so that the needle 322 can achieve a dynamic control effect during the movement. When the sewing machine stops working, the clamping and fixing component 315 can be used to more accurately adjust the rod body 321 as a whole. At this point, the entire workflow is completed.

[0048] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0050] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field.

[0051] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0052] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A sewing machine based on dynamic sewing force control and adjustment, comprising a sewing machine body (1), characterized in that: The sewing machine body (1) is provided with a transmission mechanism (2) inside, a needle bar thread taking-up mechanism (3) is provided at the front end of the transmission mechanism (2), a rotary hook thread hooking mechanism (4) is provided in the middle of the surface of the transmission mechanism (2), the needle bar thread taking-up mechanism (3) comprises a limit assembly (31), a needle bar piercing assembly (32), a needle bar adjusting assembly (33) and a thread taking-up assembly (34), the inside of the limit assembly (31) is movably connected to the surface of the needle bar piercing assembly (32), the needle bar adjusting assembly (33) is fixedly mounted on the surface of the needle bar piercing assembly (32), the inner wall of the thread taking-up assembly (34) is connected to the surface of the needle bar piercing assembly (32), the needle bar adjusting assembly (33) comprises a rack column (331), a U-shaped connecting block (332), a first gear (333), a transmission rod (33 4), a first servo motor (335), a connecting rod (336), a rocker (337) and an arc-shaped disk (338), the surface of the rack column (331) is meshedly connected with the surface of the first gear (333), the inner wall of the first gear (333) is connected with the surface of the transmission rod (334), both ends of the transmission rod (334) are movably connected with the inner walls of the U-shaped connection block (332) on both sides, the front end of the transmission rod (334) passes through the interior of the U-shaped connection block (332) and is spline-connected with the output end of the first servo motor (335), the front end of the connecting rod (336) is connected with the rear end of the U-shaped connection block (332), the rear end of the connecting rod (336) is connected with the bottom end of the rocker (337), and the top end of the rocker (337) is fixedly mounted on the front side of the arc-shaped disk (338); The transmission mechanism (2) comprises a transmission main rod (21), a convex groove block (22) and a rocking and pushing assembly (23); the surface of the main rod (21) is connected to the inner wall of the convex groove block (22); and the surface of the convex groove block (22) is provided with an oblique annular groove adapted to the top end of the rocking and pushing assembly (23); The rocking and pushing assembly (23) comprises an upper rocking rod (231), an electric telescopic rod (232), a lower rocking rod (233), a telescopic clamping column (234) and a connecting adjustment rod (235); the bottom end of the upper rocking rod (231) is movably connected to the top end of the lower rocking rod (233); a clamping groove adapted to the clamping plate of the lower rocking rod (233) is provided at the bottom end of the upper rocking rod (231); the electric telescopic rod (232) is fixedly mounted on one side of the surface of the upper rocking rod (231); and the electric telescopic rod (23 2) extends through the interior of the upper rocker (231) and contacts the card plate, the bottom end of the lower rocker (233) is movably connected to one end of the connecting and adjusting rod (235) through a movable column, the top surface of the lower rocker (233) and the bottom surface of the upper rocker (231) are both provided with through holes adapted to the telescopic card column (234), and the through holes provided on the top surface of the lower rocker (233) are adapted to the protrusions provided on the surface of the telescopic card column (234), and a sliding groove is provided on one side of the surface of the connecting and adjusting rod (235); The rotary hook thread hooking mechanism (4) comprises a rack (41), a second tooth column (42), a cylindrical rod (43), a rotary hook block (44), a support frame (45) and a slide rod (46); the surface of the rack (41) is meshedly connected with the surface of the second tooth column (42); one end of the cylindrical rod (43) is connected with the surface of the second tooth column (42); the other end of the cylindrical rod (43) passes through the support frame (45) and is connected to the inside of the rotary hook block (44); one end of the slide rod (46) is matched with a slide groove provided on one side of the surface of the connecting adjustment rod (235).

2. A sewing machine based on dynamic sewing force control and adjustment according to claim 1, characterized in that: The needle rod puncture assembly (32) comprises a rod body (321), a needle head (322) and a first wire loop (323); the bottom surface of the rod body (321) is connected to the top of the needle head (322); the first wire loop (323) is fixedly mounted on the lower surface of the rod body (321); and the rack column (331) is fixedly mounted in the middle of the rod body (321).

3. A sewing machine based on dynamic sewing force control and adjustment according to claim 2, characterized in that: The wire picking assembly (34) comprises a bidirectional connecting ring (341) and a second wire ring (342), the interior of the bidirectional connecting ring (341) is connected to the surface of the second wire ring (342), and the bottom end of the bidirectional connecting ring (341) is connected to the surface of the rocker (337).

4. A sewing machine based on dynamic sewing force control and adjustment according to claim 3, characterized in that: The position-limiting assembly (31) comprises a position-limiting connection frame (311), a controller (312), a round rod (313), a mounting block (314), and a clamping and fixing assembly (315); the position-limiting connection frame (311) is provided with through holes at both upper and lower ends thereof for adapting to the rod body (321); the clamping and fixing assembly (315) is fixedly mounted in the through hole at the upper end of the position-limiting connection frame (311); the controller (312) is fixedly mounted on the surface of the position-limiting connection frame (311); the two ends of the round rod (313) are respectively connected to the upper and lower ends of the back of the position-limiting connection frame (311); and the inner wall of the mounting block (314) is connected to the surface of the round rod (313).

5. A sewing machine based on dynamic sewing force control and adjustment according to claim 4, characterized in that: The clamping and fixing assembly (315) comprises a second servo motor (3151), a transmission belt (3152), a threaded rod (3153), a threaded connection ring (3154), a movable connection column (3155) and a clamping plate (3156); the output end of the second servo motor (3151) is connected to one end of the transmission belt (3152) via a driving rod; the surface of the transmission belt (3152) is sleeved with the outer surface of the threaded connection ring (3154); the back surface of the threaded connection ring (3154) is movably connected to the front end of the movable connection column (3155); the surface of the threaded rod (3153) is threadedly connected to the inner wall of the threaded connection ring (3154); and the rear end of the threaded rod (3153) is movably connected to the surface of the clamping plate (3156) via a bearing.

6. A method for using a sewing machine based on dynamic sewing force control and adjustment according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: The staff puts the cloth on the placement plate below the sewing machine body, starts the transmission mechanism to drive the main rod and the convex groove block to rotate, and then drives the upper rocker to swing left and right, and then connects the upper rocker and the lower rocker through the telescopic clamping column. The staff stretches the telescopic clamping column to align the clamping block on the telescopic clamping column with the through hole opened on the top surface of the lower rocker, and then rotates the telescopic clamping column to adjust the angle between the upper rocker and the lower rocker to a certain extent, and then starts the electric telescopic rod to squeeze and fix the clamping plate on the top surface of the lower rocker and the clamping groove opened on the bottom surface of the upper rocker, and pulls the clamping block on the surface of the telescopic clamping column out of the clamping groove opened on the surface of the lower rocker, so as to adjust the speed of the rack set on the connecting adjustment rod; Step 2: By adjusting the speed of the rack, the rotation speed of the second gear column is controlled, and then the rotary hook block is regulated to make it better cooperate with the needle. The staff controls the controller to make the first servo motor work, drive the first gear column to rotate, and achieve the control and adjustment of the rack column height; Step 3: After adjusting the rack column, the rod body can be adjusted at one end inside the limit connection frame, so that the needle can achieve a dynamic control effect during movement. When the sewing machine stops working, the entire rod body can be adjusted more accurately by clamping the fixing component.

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