Template machine

Abstract

The utility model belongs to the technical field of sewing machines, and particularly relates to a template machine which comprises a machine frame, a machine base, a machine head and a controller. The base comprises a lower spindle, a lower rotating shaft, a lower spindle driving mechanism and a lower rotating shaft driving mechanism; the machine head comprises an upper main shaft, an upper rotating shaft, an upper main shaft driving mechanism, an upper rotating shaft driving mechanism and a limiting mechanism; the limiting mechanism is arranged beside the upper rotating shaft; and the controller is arranged on the rack and is directly connected with the lower main shaft driving mechanism and the upper main shaft driving mechanism through cables. The controller is connected with the lower main shaft driving mechanism and the upper main shaft driving mechanism through the cable, and the lower rotating shaft and the upper rotating shaft synchronously move through a program set in the controller, so that the rotating angle of the machine head is always kept consistent with the included angle between the sewing stitch tangential direction and the X-axis forward direction. And meanwhile, the limiting mechanism is arranged to prevent the upper rotating shaft from rotating excessively, and the problem of wire winding caused by excessive rotation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines, in particular to a template machine. Background Art

[0002] At present, template sewing machines refer to fully automatic application template production combined with clothing template CAD software, clothing template sewing CAD software and advanced CNC technology, which improves production efficiency and product quality, reduces the technical requirements of skilled workers, and replaces the original manually operated sewing machines with computer-controlled machines with a higher degree of automation, reducing the degree of dependence on highly skilled personnel, ensuring quality while solving the problems of labor shortage and skill defects of industrial workers, completing clothing sewing in a fully automated manner, and promoting the assembly line of clothing template process finishing.

[0003] The method of achieving synchronization between the machine head and the machine base in the prior art is usually to control a spindle motor, connect the needle bar part and the shuttle part with a connecting rod and a gear mechanism, and rotate the single spindle to drive the needle bar and the shuttle to move synchronously to achieve sewing. This method cannot limit the rotation angle, and it is easy for the wires connecting the machine head and the machine base to get tangled together due to too many rotations, causing damage to the machine. Therefore, a solution that uses electric slip rings to replace the existing machine head and machine base synchronization has appeared on the market, which can effectively solve the problem of wire entanglement. Compared with the prior art template machine, although it can significantly improve the quality of sewn products, due to the addition of new mechanical devices such as electric slip rings, the cost increases, and the complexity of assembly and maintenance is increased, which also increases the failure rate.

[0004] Therefore, it is necessary to design a new solution to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a template machine, aiming to solve the technical problem of wire winding caused by excessive rotation of the template machine in the prior art.

[0006] To achieve the above-mentioned purpose, an embodiment of the utility model provides a template machine, including: a frame, a base, a head and a controller; the base is arranged on the frame, the base includes a lower spindle, a lower rotating shaft, a lower spindle driving mechanism and a lower rotating shaft driving mechanism, the lower spindle driving mechanism drives the lower spindle to rotate, and the lower rotating shaft driving mechanism drives the lower rotating shaft to rotate, the head is arranged on the frame, the head includes an upper spindle, an upper rotating shaft, an upper spindle driving mechanism, an upper rotating shaft driving mechanism and a limiting mechanism, the upper spindle driving mechanism drives the upper spindle needle bar to move up and down, the upper spindle driving mechanism drives the upper spindle to rotate, and the limiting mechanism is arranged on the side of the upper rotating shaft to limit the rotation angle of the upper rotating shaft; the controller is arranged on the frame, and the controller is directly connected to the lower spindle driving mechanism and the upper spindle driving mechanism through a cable to make the lower spindle and the upper spindle move synchronously.

[0007] As a preferred embodiment, the limiting mechanism includes a bracket, a stopping tooth, a positioning member, a limiting ring and a limiting column; the stopping tooth is swingably arranged on the bracket, and a plurality of grooves are arranged on the stopping tooth; the positioning member is arranged on the side of the stopping tooth to limit the rotation range of the stopping tooth; the limiting ring is arranged on the upper rotating shaft and rotates synchronously with the upper rotating shaft; the limiting column is arranged on the limiting ring, and is used to extend into the groove of the stopping tooth for limiting when the upper main shaft rotates to the maximum angle.

[0008] As a preferred solution, the limiting mechanism also includes a sensor, which is arranged on the bracket and connected to the controller; a positioning column is arranged on the stopping tooth, and the positioning column is located below the sensor, for obtaining the rotation angle of the upper rotating shaft and sending it to the controller.

[0009] As a preferred solution, the limiting mechanism is also provided on the machine base, and the limiting mechanism is provided on the side of the lower rotating shaft to limit the rotation angle of the lower rotating shaft.

[0010] As a preferred solution, the cable is a PVC torsion-resistant cable.

[0011] As a preferred embodiment, the machine base also includes a lower sewing device, which is arranged on the side of the lower main shaft; the lower sewing device includes a rotary hook, a mounting seat, a positioning hook, a wire dividing plate and a circular fixed knife; the rotary hook is arranged on the lower main shaft, the mounting seat is arranged on the side of the rotary hook, the positioning hook, the wire dividing plate and the circular fixed knife are all fixed on the mounting seat and located on the side of the rotary hook.

[0012] As a preferred embodiment, the lower sewing device also includes a mounting sleeve, a circularly movable blade and a blade driving mechanism, the mounting sleeve is coaxially arranged on the lower main shaft, the circularly movable blade is arranged on one side of the mounting sleeve, and the blade driving mechanism is arranged on the machine base and drives the mounting sleeve to rotate.

[0013] As a preferred embodiment, the machine head also includes an upper sewing device, which is arranged on the side of the upper main shaft; the upper sewing device includes a large presser foot assembly, a large presser foot driving mechanism, a small presser foot assembly and a small presser foot driving mechanism, the large presser foot driving mechanism drives the large presser foot assembly to move up and down, and the small presser foot driving mechanism drives the small presser foot assembly to move up and down.

[0014] As a preferred solution, a workbench and a crossbeam device are provided on the frame; the workbench is located between the machine base and the machine head, and the crossbeam device is provided on the workbench.

[0015] As a preferred solution, a small needle plate is provided on the workbench, and the small needle plate is located directly below the upper spindle and directly above the lower spindle. The crossbeam device drives the fabric to be sewn to move above the small needle plate, so that the machine head and the machine base can sew the fabric to be sewn.

[0016] The above one or more technical solutions in a template machine provided by the embodiment of the utility model have at least one of the following technical effects:

[0017] In the present application, the controller connects the lower spindle drive mechanism and the upper spindle drive mechanism through a cable, and the program set in the controller makes the lower spindle and the upper spindle move synchronously, so that the rotation angle of the machine head is always consistent with the angle between the tangent direction of the sewing thread and the positive direction of the X-axis. At the same time, by setting a limit mechanism to prevent the upper rotating shaft from over-rotating, the upper rotating shaft rotates within the set range, avoiding the problem of wire entanglement due to excessive rotation. Compared with the template machine using electric slip rings, it effectively reduces the production cost, assembly cost and maintenance cost, and has a lower failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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.

[0019] Figure 1 A schematic diagram of the overall structure of a template machine provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the base structure of a template machine provided in an embodiment of the utility model;

[0021] Figure 3 A schematic structural diagram of a lower sewing device of a template machine provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the head structure of a template machine provided in an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the structure of a limiting mechanism of a template machine provided in an embodiment of the utility model;

[0024] Figure 6 A schematic structural diagram of an upper sewing device of a template machine provided in an embodiment of the utility model.

[0025] Among them, the reference numerals in the figure are:

[0026] Frame; 110-working table; 111-small needle plate; 120-crossbeam device;

[0027] 200-machine base; 210-lower spindle; 220-lower rotating shaft; 230-lower spindle driving mechanism; 240-lower rotating shaft driving mechanism; 250-lower sewing device; 251-rotating shuttle; 252-mounting seat; 253-positioning hook; 254-wire dividing piece; 255-circular fixed knife; 256-mounting sleeve; 257-circular movable blade; 258-blade driving mechanism;

[0028] 300-machine head; 310-upper spindle; 320-upper rotating shaft; 330-upper spindle driving mechanism; 340-upper rotating shaft driving mechanism; 350-limiting mechanism; 351-bracket; 352-stopping tooth; 353-positioning member; 354-limiting ring; 355-limiting column; 356-first slot; 357-second slot; 358-third slot; 359-sensor; 360-upper sewing device; 361-large presser foot assembly; 362-large presser foot driving mechanism; 363-small presser foot assembly; 364-small presser foot driving mechanism;

[0029] 400-controller;

[0030] 500-cable. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In one embodiment of the present invention, Figure 1 As shown, a template machine is provided, including a frame 100, a base 200, a head 300 and a controller 400.

[0036] The frame 100 is provided with a workbench 110 and a crossbeam device 120. The workbench 110 is located between the machine base 200 and the machine head 300, and a small needle plate 111 is provided on the workbench 110. The small needle plate 111 is located directly below the upper spindle of the machine head 300 and directly above the lower spindle of the machine base 200. The crossbeam device 120 drives the fabric to be sewn to move above the small needle plate 111, so that the machine head 300 and the machine base 200 sew the fabric to be sewn.

[0037] The base 200 is disposed on the frame 100, and the base 200 includes a lower spindle 210, a lower rotating shaft 220, a lower spindle driving mechanism 230, and a lower rotating shaft driving mechanism 240. Figure 2The lower spindle driving mechanism 210 drives the lower spindle 210 to rotate, and the lower rotating shaft driving mechanism 240 drives the lower rotating shaft 220 to rotate. In this embodiment, the lower spindle driving mechanism 230 and the lower rotating shaft driving mechanism 240 are preferably motors.

[0038] In this embodiment, the base 200 further includes a lower sewing device 250, such as Figure 3 As shown, the lower sewing device 250 is arranged beside the lower spindle 210, and the lower sewing device 250 includes a rotary hook 251, a mounting seat 252, a positioning hook 253, a thread dividing piece 254 and a circular fixed knife 255. The rotary hook 251 is arranged on the lower spindle 210, the mounting seat 252 is arranged beside the rotary hook 251, and the positioning hook 253, the thread dividing piece 254 and the circular fixed knife 255 are all fixed on the mounting seat 252 and located beside the rotary hook 251.

[0039] Furthermore, the lower sewing device 250 further includes a mounting sleeve 256, a circular moving blade 257 and a blade driving mechanism 258, wherein the mounting sleeve 256 is coaxially arranged on the lower spindle 210, the circular moving blade 257 is arranged on one side of the mounting sleeve 256, and the blade driving mechanism 258 is arranged on the machine base 200 and drives the mounting sleeve 256 to rotate. In this embodiment, the blade driving mechanism 258 is a motor.

[0040] The machine head 300 includes an upper spindle 310, an upper rotating shaft 320, an upper spindle driving mechanism 330, an upper rotating shaft driving mechanism 340 and a limiting mechanism 350. Figure 4 As shown. The upper spindle drive mechanism 330 drives the upper spindle 310 to move up and down, and the upper spindle drive mechanism 330 drives the needle bar connected to the upper spindle 310 to move up and down through a cam mechanism. The upper spindle drive mechanism 330 drives the upper spindle 310 to rotate, and the limit mechanism 350 is arranged on the side of the upper rotating shaft 320 to limit the rotation angle of the upper rotating shaft 320. In this embodiment, the upper spindle drive mechanism 330 and the upper rotating shaft drive mechanism 340 are preferably motors.

[0041] Specifically, the limiting mechanism 350 includes a bracket 351, a stop tooth 352, a positioning member 353, a limiting ring 354 and a limiting column 355. Figure 5As shown. The stop tooth 352 is swingably disposed on the bracket 351, and a plurality of grooves are disposed on the stop tooth 352. The positioning member 353 is disposed on the side of the stop tooth 352 to limit the rotation range of the stop tooth 352. The limiting ring 354 is disposed on the upper rotating shaft 320 and rotates synchronously with the upper rotating shaft 320. The limiting column 355 is disposed on the limiting ring 354, and is used to extend into the groove of the stop tooth 352 for limiting when the upper main shaft 310 rotates to the maximum angle.

[0042] In this embodiment, there are three grooves, specifically including a first groove 356, a second groove 357 and a third groove 358. The limiting post 355 is located in the second groove 357 at the initial position. When the limiting post 355 rotates clockwise with the upper rotating shaft 320, the stop tooth 352 swings counterclockwise, so that the limiting post 355 leaves the second groove 357. After the limiting post 355 rotates clockwise by nearly 360°, it enters the first groove 356 for limiting, and the stop tooth 352 continues to swing counterclockwise. At the same time, due to the restriction of the positioning member 353, the stop tooth 352 cannot swing after swinging a certain angle (at this time, the limiting post 355 just rotates clockwise by 360°), so that the limiting post 355 cannot rotate clockwise to disengage from the first groove 356, thereby limiting the rotation angle of the upper rotating shaft 320. Then the limiting post 355 rotates 360° counterclockwise, disengages from the first slot 356 and enters the second slot 357, returning to the initial position. The limiting post 355 rotates 360° counterclockwise again, disengages from the second slot 357 and enters the third slot 358. Of course, the number of the grooves can be set according to requirements, without limitation, to meet different angle restriction requirements.

[0043] Furthermore, the limiting mechanism 350 further includes a sensor 359, which is disposed on the bracket 351 and connected to the controller 400. A positioning column is disposed on the stop tooth 352, and the positioning column is located below the sensor 359, and is used to obtain the rotation angle of the upper rotating shaft 320 and send it to the controller 400. In this embodiment, the positioning member 353 is the positioning column. Of course, the positioning member 353 can also be a limiting groove or a stopper disposed on the bracket 351, as long as the swing range of the stop tooth 352 can be limited.

[0044] In this embodiment, the machine head 300 further includes an upper sewing device 360, such as Figure 6As shown, the upper sewing device 360 ​​is arranged beside the upper spindle 310; the upper sewing device 360 ​​includes a large presser foot assembly 361, a large presser foot driving mechanism 362, a small presser foot assembly 363 and a small presser foot driving mechanism 364. The large presser foot driving mechanism 362 drives the large presser foot assembly 361 to move up and down, and the small presser foot driving mechanism 364 drives the small presser foot assembly 363 to move up and down. In this embodiment, the large presser foot driving mechanism 362 and the small presser foot driving mechanism 364 are preferably cylinders.

[0045] The controller 400 is disposed on the frame 100, and the controller 400 is directly connected to the lower rotating shaft drive mechanism 240 and the upper rotating shaft drive mechanism 340 through a cable 500, so that the lower rotating shaft 220 and the upper rotating shaft 320 move synchronously. In this embodiment, the cable 500 is a PVC torsion-resistant cable. The controller 400 is connected to the upper spindle drive mechanism 330 and the large presser foot drive mechanism 362 through the torsion-resistant cable 500 to achieve normal power supply and communication functions of the upper sewing device 360 ​​during the forward and reverse circular motion of the machine head 300. The controller 400 is directly connected to the lower spindle drive mechanism 230 and the blade drive mechanism 258 through the torsion-resistant cable 500 to achieve normal power supply and communication functions during the movement of the lower sewing device 250.

[0046] In another embodiment of the utility model, the limiting mechanism 350 is also provided on the machine base 200, and the limiting mechanism 350 is provided beside the lower rotating shaft 220 to limit the rotation angle of the lower rotating shaft 220. The upper rotating shaft 320 and the lower rotating shaft 220 are limited at the same time to avoid affecting the use of the template machine when a single limiting mechanism fails.

[0047] The controller 400 in the present application connects the lower spindle drive mechanism 230 and the upper spindle drive mechanism 330 through a cable, and the program set in the controller 400 makes the lower spindle 210 and the upper spindle 310 move synchronously, so that the rotation angle of the machine head 300 is always consistent with the angle between the tangent direction of the sewing thread and the positive direction of the X-axis. At the same time, by setting the limit mechanism 350 to prevent the upper rotating shaft 320 from excessive rotation, the upper rotating shaft 320 rotates within the set range, avoiding the problem of wire entanglement caused by excessive rotation. Compared with the template machine using electric slip rings, it effectively reduces the production cost, assembly cost and maintenance cost, and has a lower failure rate.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A template machine, characterized in that: include: The machine head comprises an upper spindle, an upper rotating shaft, an upper spindle driving mechanism, an upper rotating shaft driving mechanism and a limiting mechanism, the upper spindle driving mechanism drives the upper spindle needle bar to move up and down, the upper spindle driving mechanism drives the upper spindle to rotate, and the limiting mechanism is arranged on the side of the upper rotating shaft to limit the rotation angle of the upper rotating shaft; the controller is arranged on the frame, and the controller is directly connected to the lower spindle driving mechanism and the upper spindle driving mechanism through a cable so that the lower spindle and the upper spindle move synchronously.

2. A template machine according to claim 1, characterized in that: The limiting mechanism includes a bracket, a stopping tooth, a positioning piece, a limiting ring and a limiting column; the stopping tooth is swingably arranged on the bracket, and a plurality of grooves are arranged on the stopping tooth; the positioning piece is arranged on the side of the stopping tooth to limit the rotation range of the stopping tooth; the limiting ring is arranged on the upper rotating shaft and rotates synchronously with the upper rotating shaft; the limiting column is arranged on the limiting ring, and is used to extend into the groove of the stopping tooth for limiting when the upper main shaft rotates to the maximum angle.

3. A template machine according to claim 2, characterized in that: The limiting mechanism also includes a sensor, which is arranged on the bracket and connected to the controller; a positioning column is arranged on the stop tooth, and the positioning column is located below the sensor, and is used to obtain the rotation angle of the upper rotating shaft and send it to the controller.

4. A template machine according to claim 1, characterized in that: The limiting mechanism is also arranged on the machine base, and the limiting mechanism is arranged beside the lower rotating shaft to limit the rotation angle of the lower rotating shaft.

5. A template machine according to claim 1, characterized in that: The cable is a PVC torsion-resistant cable.

6. A template machine according to any one of claims 1 to 5, characterized in that: The machine base also includes a lower sewing device, which is arranged on the side of the lower main shaft; the lower sewing device includes a rotary hook, a mounting seat, a positioning hook, a wire dividing plate and a circular fixed knife; the rotary hook is arranged on the lower main shaft, the mounting seat is arranged on the side of the rotary hook, the positioning hook, the wire dividing plate and the circular fixed knife are all fixed on the mounting seat and located on the side of the rotary hook.

7. A template machine according to claim 6, characterized in that: The lower sewing device also includes a mounting sleeve, a circularly movable blade and a blade driving mechanism. The mounting sleeve is coaxially arranged on the lower main shaft, the circularly movable blade is arranged on one side of the mounting sleeve, and the blade driving mechanism is arranged on the machine base and drives the mounting sleeve to rotate.

8. A template machine according to any one of claims 1 to 5, characterized in that: The machine head also includes an upper sewing device, which is arranged on the side of the upper main shaft; the upper sewing device includes a large presser foot assembly, a large presser foot driving mechanism, a small presser foot assembly and a small presser foot driving mechanism, the large presser foot driving mechanism drives the large presser foot assembly to move up and down, and the small presser foot driving mechanism drives the small presser foot assembly to move up and down.

9. A template machine according to any one of claims 1 to 5, characterized in that: A workbench and a crossbeam device are arranged on the frame; the workbench is located between the machine base and the machine head, and the crossbeam device is arranged on the workbench.

10. A template machine according to claim 9, characterized in that: A small needle plate is provided on the workbench, and the small needle plate is located directly below the upper spindle and directly above the lower spindle. The crossbeam device drives the fabric to be sewn to move above the small needle plate, so that the machine head and the machine base can sew the fabric to be sewn.

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