Vibration cutter device for template sewing machine

Abstract

The utility model relates to the technical field of knitting, and provides a vibration cutter device for a template sewing machine, which comprises a controller, a mounting plate connected with a machine head body on a frame of the template sewing machine, a cutter mechanism, a lifting mechanism, a presser foot mechanism, a first driving mechanism and a cloth feeding mechanism, the vibrating cutter is arranged in the first rotating seat in a penetrating mode, a cutter of the vibrating cutter can penetrate out of the bottom of the first rotating seat and penetrate through a groove in the middle of a presser foot of the presser foot mechanism to cut cloth on a template sewing machine workbench, and the cloth feeding mechanism comprises a second fixing seat, a second rotating seat, a rotating shaft, a first cloth feeding wheel, a second cloth feeding wheel and a second driving mechanism. The first cloth feeding wheel and the second cloth feeding wheel penetrate out of the top face of the second rotating base and are located on the two sides of the cutter groove respectively, and the first cloth feeding wheel and the second cloth feeding wheel are located under the presser foot and matched with the presser foot to clamp and convey cloth. The cutting knife of the template sewing machine solves the problems that when a cutting knife of an existing template sewing machine is used for cutting cloth, wrinkles are prone to being generated, and the cutting precision is poor.

Description

Technical Field

[0001] This utility model relates to the field of knitting technology, and in particular to a vibrating knife device for a template sewing machine. Background Technology

[0002] Template sewing machines refer to fully automated template production that combines garment template CAD software, garment template sewing CAD software, and advanced CNC technology. This improves production efficiency and product quality, reduces the technical requirements for skilled workers, and replaces the original manually operated sewing machines with more automated, computer-controlled machines. However, the existing template sewing machines' vibrating blade-type cutters have low cutting accuracy and are inconvenient to use when cutting fabric. For example, Chinese patent document 201620989057.3 discloses a cutting device for an intelligent sewing machine, including an upper part and a lower part; the upper part of the worktable is connected to a connecting plate via a lifting mechanism, which controls the upward movement of the upper part of the worktable; the lower part of the worktable is installed at the bottom of the worktable plate; an upper cutter is provided at the bottom of the upper part of the worktable; a blade groove that cooperates with the upper cutter is provided at the top of the upper part of the worktable; both the upper and lower cutters are mounted on a rotating mechanism. The patent has certain defects. For example, when cutting fabric, the fabric at the end of the cutting blade is in a loose state, which will cause wrinkles. This not only affects the accuracy of the fabric cutting, but also affects the appearance of the product. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes a vibrating knife device for template sewing machines that has stable structure and operation, high matching accuracy, improved cutting accuracy, and good cutting effect.

[0004] To solve this technical problem, the present invention adopts the following solution: a vibrating knife device for a template sewing machine, comprising a controller, a mounting plate connected to the machine head body on the template sewing machine frame, a cutting knife mechanism, a lifting mechanism, and a presser foot mechanism. The cutting knife mechanism is mounted on the mounting plate and can be raised and lowered via the lifting mechanism. It also includes a first drive mechanism and a fabric feeding mechanism. The cutting knife mechanism includes a first fixed seat, a first rotating seat, and a vibrating knife. The first fixed seat is connected to the output end of the lifting mechanism. The first rotating seat is rotatably mounted on the first fixed seat along a vertical axis. The presser foot mechanism is mounted on the first rotating seat, with the presser foot located below the bottom of the first rotating seat. The vibrating knife passes through the first rotating seat, and its cutting blade can pass through the bottom of the first rotating seat and through the groove in the middle of the presser foot mechanism to cut the fabric on the template sewing machine workbench. The fabric feeding mechanism includes a second fixed seat, a second rotating seat, a rotating shaft, a first feed wheel, a second feed wheel, and a second drive mechanism. The structure includes a second fixed seat located on the worktable of the template sewing machine, below the cutting knife mechanism. A second rotating seat is rotatably mounted on the second fixed seat along a vertical axis, with its top positioned below the cutting knife of the vibrating blade of the cutting knife mechanism and equipped with a suitable cutting groove. The rotating shaft is rotatably mounted inside the second rotating seat. The first and second feed wheels are spaced apart and sleeved on the rotating shaft, with their top portions extending through the top surface of the second rotating seat. The first and second feed wheels extend through the top surface of the second rotating seat and are located on either side of the cutting groove, respectively. The first and second feed wheels are positioned directly below the presser foot and cooperate with the presser foot to clamp and feed the fabric. A second driving mechanism is mounted on the second rotating seat, with its output end connected to and driving the rotating shaft to rotate. The first driving mechanism drives the first and second rotating seats to rotate synchronously along the vertical axis. The cutting knife mechanism, lifting mechanism, presser foot mechanism, first driving mechanism, and second driving mechanism are all connected to and controlled by a controller.

[0005] Furthermore, the first driving mechanism includes a first driving unit and a second driving unit. The first driving unit is disposed on a first fixed base and its output is connected to drive the first rotating base to rotate. The second driving unit is disposed on a second fixed base and its output is connected to drive the second rotating base to rotate.

[0006] Furthermore, the first drive unit and the second drive unit drive the first rotating seat and the second rotating seat to rotate via the synchronous wheel set, respectively.

[0007] Furthermore, both the first and second feed rollers are gears, and the bottom surface of the presser foot mechanism is provided with an arc-shaped surface that is compatible with the first and second feed rollers.

[0008] Furthermore, the presser foot mechanism includes a second lifting mechanism, a presser foot, and a presser foot rod. The output end of the second lifting mechanism drives the presser foot to move up and down via the presser foot rod.

[0009] Furthermore, the presser foot mechanism also includes a return spring. A limiting cylinder is sleeved on the end of the presser foot rod away from the second lifting mechanism. The upper part of the presser foot passes through the end of the limiting cylinder away from the presser foot rod, and the upper end of the presser foot has a circumference protruding from the outer wall so that the upper end of the presser foot is locked in the limiting cylinder. The return spring passes through the limiting cylinder and is located between the presser foot rod and the presser foot.

[0010] Furthermore, it also includes an outer pressure foot mechanism and a third lifting mechanism. The outer pressure foot mechanism is mounted on the mounting plate and can be raised and lowered via the third lifting mechanism, with the outer pressure foot of the outer pressure foot mechanism located around the pressure foot of the pressure foot mechanism.

[0011] Furthermore, the second drive mechanism is a rotary motor, which is connected via a set of synchronous pulleys and drives the rotating shaft to rotate.

[0012] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: By setting the cutting knife mechanism, presser foot mechanism, and fabric feeding mechanism to all be able to rotate synchronously at 360°, and placing the fabric feeding mechanism on the template sewing machine worktable below the cutting knife mechanism, the cutting blade of the vibrating knife of the cutting knife mechanism can pass through the bottom of the first rotating seat and through the middle slot of the presser foot mechanism to cut the fabric on the template sewing machine worktable. During fabric cutting, the first and second feeding wheels of the fabric feeding mechanism are located directly below the presser foot and rotate to cooperate with the presser foot to clamp and feed the fabric, so that the fabric is clamped on both sides of the cutter and fed to the cutter for cutting, thereby maintaining the rigidity of the fabric and ensuring that the clamped and fed fabric does not shift, effectively cooperating with the cutter. This device precisely cuts fabric with a stable structure, high precision, and improved cutting accuracy and effect. The fabric feeding mechanism and cutting blade mechanism can rotate 360° synchronously, meeting cutting needs at any angle. The fabric feeding mechanism also works in tandem to precisely follow the fabric, further ensuring cutting precision. By setting both the first and second feed wheels to gears, and the presser foot mechanism having an arc-shaped surface on its bottom that matches the first and second feed wheels, the fabric conveying and clamping structure becomes more stable, resulting in more precise fabric cutting. Furthermore, the presser foot is equipped with a return spring, providing a certain amount of elasticity to prevent excessive pressure on the fabric, which could affect the conveying of the first and second feed wheels. This design allows for widespread application. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure from another angle of an embodiment of the present utility model;

[0015] Figure 3 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 4 This is a partial cross-sectional structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] refer to Figures 1-4The preferred vibrating knife device for a template sewing machine of this utility model includes a controller, a mounting plate 1 connected to the machine head body on the template sewing machine frame, a cutting knife mechanism, a lifting mechanism 3, a presser foot mechanism 4, a first drive mechanism, a feeding mechanism, an outer presser foot mechanism 7, and a third lifting mechanism 8. The cutting knife mechanism is mounted on the mounting plate 1 and can be raised and lowered via the lifting mechanism 3. The cutting knife mechanism includes a first fixed seat 21, a first rotating seat 22, and a vibrating knife 23. The vibrating knife 23 is a vibrating knife mechanism. The first fixed seat 21 is connected to the output end of the lifting mechanism 3. The first rotating seat 22 is rotatably mounted on the first fixed seat 21 along a vertical axis. The presser foot mechanism 4 is mounted on the first rotating seat 22, and the presser foot of the presser foot mechanism 4 is located at the first rotating seat 22. Below the bottom of the rotating base 22, the presser foot mechanism 4 includes a second lifting mechanism, a presser foot, a presser foot rod, and a return spring. The output end of the second lifting mechanism is connected to the upper end of the presser foot rod. A limiting cylinder is sleeved on the lower end of the presser foot rod. The upper part of the presser foot passes through the end of the limiting cylinder away from the presser foot rod, and the upper end of the presser foot has a circumferential edge protruding from the outer wall so that the upper end of the presser foot is locked in the limiting cylinder. The return spring passes through the limiting cylinder and is located between the presser foot rod and the presser foot. The outer presser foot mechanism 7 is mounted on the mounting plate 1 and can be raised and lowered via the third lifting mechanism 8. The outer presser foot of the outer presser foot mechanism 7 is located outside the presser foot of the presser foot mechanism 4. The vibrating knife 23 passes through the first rotating base 22, and the cutter of the vibrating knife 23 can pass through the bottom of the first rotating base 22 and through the presser foot of the presser foot mechanism 4. The fabric feeding mechanism 6 cuts the fabric on the template sewing machine workbench by slotting. The feeding mechanism 6 includes a second fixed seat 61, a second rotating seat 62, a rotating shaft 63, a first feeding wheel 64, a second feeding wheel 65, and a second drive mechanism 66. The second fixed seat 61 is located on the template sewing machine workbench below the cutting blade mechanism. The second rotating seat 62 is rotatably mounted on the second fixed seat 61 along a vertical axis, and its top is located below the cutting blade of the vibrating blade 23 of the cutting blade mechanism, with a suitable cutting groove 621. The rotating shaft 63 is rotatably mounted inside the second rotating seat 62. The first feeding wheel 64 and the second feeding wheel 65 are spaced apart and sleeved on the rotating shaft 63, with the top portions of the first feeding wheel 64 and the second feeding wheel 65 extending out of the first fixed seat 61. On the top surface of the second rotating seat 62, the first feeding wheel 64 and the second feeding wheel 65 protrude from the top surface of the second rotating seat 62 and are located on both sides of the cutter groove 621. The first feeding wheel 64 and the second feeding wheel 65 are located directly below the presser foot of the presser foot mechanism 4 and cooperate with the presser foot to clamp and feed the fabric. The first feeding wheel 64 and the second feeding wheel 65 are both gears. The bottom surface of the presser foot of the presser foot mechanism 4 is provided with an arc-shaped surface 41 that is adapted to the first feeding wheel 64 and the second feeding wheel 65. The second drive mechanism 66 is located on the second rotating seat 62. The second drive mechanism 66 is a rotary motor. The second drive mechanism 66 is connected to the synchronous pulley group and drives the rotating shaft 63 to rotate. The first drive mechanism drives the first rotating seat 22 and the second rotating seat 62 to rotate synchronously along the vertical axis.The first driving mechanism includes a first driving unit 51 and a second driving unit 52. The first driving unit 51 is mounted on a first fixed base 21, and its output is connected to a synchronous pulley group to drive the first rotating base 22 to rotate. The second driving unit 52 is mounted on a second fixed base 61, and its output is connected to a synchronous pulley group to drive the second rotating base 62 to rotate. The cutting blade mechanism, lifting mechanism 3, presser foot mechanism 4, outer presser foot mechanism 7, third lifting mechanism 8, first driving mechanism, and second driving mechanism 66 are all connected to and controlled by a controller.

[0019] In the above embodiments, the first driving mechanism and the second driving mechanism can be servo motors, rotary stepper motors, permanent magnet motors, etc.

[0020] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A vibrating knife device for a template sewing machine, comprising a controller, a mounting plate connected to a head body of a template sewing machine frame, a cutting knife mechanism, a lifting mechanism and a presser foot mechanism, the cutting knife mechanism is arranged on the mounting plate and can be lifted up and down by the lifting mechanism, characterized in that: The cutting knife mechanism comprises a first fixed seat, a first rotating seat and a vibrating knife, the first fixed seat is connected with the output end of the lifting mechanism, the first rotating seat is rotatably arranged on the first fixed seat along a vertical shaft, the presser foot mechanism is arranged on the first rotating seat, and the presser foot of the presser foot mechanism is located below the bottom of the first rotating seat, the vibrating knife is arranged in the first rotating seat, the cutting knife of the vibrating knife can pass through the bottom of the first rotating seat and pass through the middle slot of the presser foot of the presser foot mechanism to cut the cloth on the template sewing machine workbench, the cloth feeding mechanism comprises a second fixed seat, a second rotating seat, a rotating shaft, a first cloth feeding wheel, a second cloth feeding wheel and a second driving mechanism, the second fixed seat is arranged on the template sewing machine workbench below the cutting knife mechanism, the second rotating seat is rotatably arranged on the second fixed seat along a vertical shaft, and the top of the second rotating seat is located below the cutting knife of the vibrating knife of the cutting knife mechanism and is provided with a matching cutting knife slot, the rotating shaft is rotatably arranged in the second rotating seat, the first cloth feeding wheel and the second cloth feeding wheel are arranged on the rotating shaft in a spaced manner, and the top portions of the first cloth feeding wheel and the second cloth feeding wheel pass through the top surface of the second rotating seat, the first cloth feeding wheel and the second cloth feeding wheel passing through the top surface of the second rotating seat are located on the two sides of the cutting knife slot respectively, and the first cloth feeding wheel and the second cloth feeding wheel are located directly below the presser foot and cooperate with the presser foot to clamp and feed the cloth, the second driving mechanism is arranged on the second rotating seat, and the output end of the second driving mechanism is connected with and drives the rotating shaft to rotate, the first driving mechanism drives the first rotating seat and the second rotating seat to rotate synchronously along the vertical shaft, and the cutting knife mechanism, the lifting mechanism, the presser foot mechanism, the first driving mechanism and the second driving mechanism are connected with and controlled by the controller.

2. The vibrating knife device for a stencil sewing machine according to claim 1, characterized in that: The first driving mechanism comprises a first driving unit and a second driving unit, the first driving unit is arranged on the first fixed seat, and the output of the first driving unit is connected with and drives the first rotating seat to rotate, the second driving unit is arranged on the second fixed seat, and the output of the second driving unit is connected with and drives the second rotating seat to rotate.

3. The vibrating knife apparatus for a stencil sewing machine according to claim 2, characterized in that: The first driving unit and the second driving unit drive the first rotating seat and the second rotating seat to rotate respectively through the synchronous wheel set.

4. The vibrating knife apparatus for a stencil sewing machine of claim 1, wherein: The first cloth feeding wheel and the second cloth feeding wheel are gears, and the bottom surface of the presser foot of the presser foot mechanism is provided with an arc surface matched with the first cloth feeding wheel and the second cloth feeding wheel.

5. The vibrating knife apparatus for a stencil sewing machine according to claim 4, characterized in that: The presser foot mechanism comprises a second lifting mechanism, a presser foot and a presser foot rod, and the output end of the second lifting mechanism drives the presser foot to rise and fall through the presser foot rod.

6. The vibrating knife apparatus for a stencil sewing machine according to claim 5, characterized in that: The presser foot mechanism further comprises a reset spring, one end of the presser foot rod away from the second lifting mechanism is sleeved with a limiting cylinder, the upper part of the presser foot is arranged in one end of the limiting cylinder away from the presser foot rod, and the upper end of the presser foot is provided with a convex outer wall to make the upper end of the presser foot clamped in the limiting cylinder, and the reset spring is arranged in the limiting cylinder between the presser foot rod and the presser foot.

7. The vibrating knife apparatus for a stencil sewing machine of claim 1, wherein: The outer presser foot mechanism is arranged on the mounting plate and can rise and fall through the third lifting mechanism, and the outer presser foot of the outer presser foot mechanism is located outside the presser foot of the presser foot mechanism.

8. The vibrating knife apparatus for a stencil sewing machine of claim 1, wherein: The second driving mechanism is a rotary motor, and the second driving mechanism drives the rotating shaft to rotate through the synchronous wheel set.

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