Cutting device for template sewing machine

Abstract

The invention relates to the technical field of knitting, and provides a cutting 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 cutting knife unit is arranged in the first rotating seat in a penetrating mode, and a cutting knife of the cutting knife unit 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. The cloth feeding mechanism comprises a second fixing base, a second rotating base, 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 problems that when a cutting knife of an existing template sewing machine is used for cutting cloth, wrinkles are likely to be generated, and the cutting precision is poor are solved.

Description

Technical Field

[0001] The invention relates to the technical field of knitting, in particular to a cutting device for a template sewing machine. Background Art

[0002] Template sewing machine refers to a machine that combines clothing template CAD software, clothing template sewing CAD software and advanced numerical control technology to produce fully automatic application templates, improve production efficiency and product quality, reduce the technical requirements of skilled workers, and replace the original manually operated sewing machine with a computer-controlled machine with a higher degree of automation. However, the vibrating knife-type cutting knife of the existing template sewing machine has low cutting accuracy when cutting fabrics and is inconvenient to use. For example, Chinese patent document: 201620989057.3 discloses a cutting knife device of an intelligent sewing machine, including an upper part and a lower part of the workbench; the upper part of the workbench is connected to the connecting plate through a lifting mechanism, and the lifting mechanism controls the upward movement of the upper part of the workbench, and the lower part of the workbench is installed at the bottom of the workbench board, and the upper cutting knife is arranged at the bottom of the upper part of the workbench, and a knife groove matching the upper cutting knife is arranged at the top of the upper part of the workbench, and the upper cutting knife and the lower cutting knife are both installed on the rotating mechanism. There are certain defects in the content disclosed in this patent. For example, when cutting cloth, the cloth at the foot of the cutting knife is in a loose state, and wrinkles will appear on the cloth here, which not only affects the accuracy of cloth cutting, but also affects the appearance of the product. Summary of the invention

[0003] Therefore, in view of the above problems, the present invention proposes a cutting device for a template sewing machine with 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 scheme: a cutting device for a template sewing machine, comprising a controller, a mounting plate connected to a head body on a frame of the template sewing machine, a cutting knife mechanism, a lifting mechanism and a presser foot mechanism, wherein the cutting knife mechanism is arranged on the mounting plate and can be lifted up and down by the lifting mechanism, and also comprises a first driving mechanism and a cloth feeding mechanism, wherein the cutting knife mechanism comprises a first fixed seat, a first rotating seat and a cutting knife unit, wherein the first fixed seat is connected to an output end of the lifting mechanism, the first rotating seat can be rotatably and rotatably penetrated on the first fixed seat along a vertical axis, 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 cutting knife unit is penetrated in the first rotating seat and the cutting knife of the cutting knife unit can penetrate out of 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 worktable of the template sewing machine, and 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 mechanism of claim 1, wherein the second fixed seat is arranged on the workbench of the template sewing machine and is located below the cutting knife mechanism, the second rotating seat can be rotatably arranged on the second fixed seat along the vertical axis, and the top of the second rotating seat is located below the cutting knife of the cutting knife unit of the cutting knife mechanism and is provided with an adaptive cutting knife groove, the rotating shaft is rotatably arranged in the second rotating seat, the first cloth feeding wheel and the second cloth feeding wheel are sleeved on the rotating shaft at an interval, and the top parts 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 pass through the top surface of the second rotating seat and are respectively located on both sides of the cutting knife groove, 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 transport cloth, the second driving mechanism is arranged on the second rotating seat, and the output end of the second driving mechanism is connected to 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 axis, and the cutting knife mechanism, the lifting mechanism, the presser foot mechanism, the first driving mechanism, and the second driving mechanism are all connected to and controlled by the controller.

[0005] Furthermore, the first driving mechanism includes a first driving unit and a second driving unit, the first driving unit is arranged on the first fixed seat and the first driving unit output is connected and drives the first rotating seat to rotate, and the second driving unit is arranged on the second fixed seat and the second driving unit output is connected and drives the second rotating seat to rotate.

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

[0007] Furthermore, the first cloth feeding wheel and the second cloth feeding wheel are both gears, and the bottom surface of the presser foot of the presser foot mechanism is provided with an arc surface that matches the first cloth feeding wheel and the second cloth feeding wheel.

[0008] Furthermore, the presser foot mechanism includes 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 move up and down through the presser foot rod.

[0009] Furthermore, the presser foot mechanism also includes a reset spring, the 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 inserted into the end of the limiting cylinder away from the presser foot rod and the upper end of the presser foot is provided with a peripheral edge protruding from the outer wall so that the upper end of the presser foot is clamped in the limiting cylinder, and the reset spring is inserted in the limiting cylinder and is located between the presser foot rod and the presser foot.

[0010] Furthermore, it also includes an external presser foot mechanism and a third lifting mechanism. The external presser foot mechanism can be lifted up and down by the third lifting mechanism and is arranged on the mounting plate. The external presser foot of the external presser foot mechanism is located at the periphery of the presser foot of the presser foot mechanism.

[0011] Furthermore, the second driving mechanism is a rotating motor, which is connected via a synchronous wheel set and drives the rotating shaft to rotate.

[0012] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: by setting the cutting knife mechanism, the presser foot mechanism and the cloth feeding mechanism to be able to rotate synchronously 360 degrees, the cloth feeding mechanism is arranged on the template sewing machine worktable and is located below the cutting knife mechanism, so that the cutting knife of the cutting knife unit of the cutting knife mechanism 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 worktable of the template sewing machine; when cutting the cloth, the first cloth feeding wheel and the second cloth feeding wheel of the cloth feeding mechanism are located directly below the presser foot and rotate to cooperate with the presser foot to clamp and transport the cloth, so that the cloth is clamped on both sides of the cutting knife and transported to the cutting knife for cutting, thereby maintaining the hardness of the cloth and clamping and transporting it without displacement, and effectively cooperating with the cutting knife to carry out The invention can accurately cut the cloth, and the structure has stable operation, high matching accuracy, improved cutting accuracy and good cutting effect. The cloth feeding mechanism and the cutting knife mechanism can rotate 360° synchronously, which can meet the cutting requirements at any angle. At the same time, the cloth feeding mechanism can also cooperate to realize accurate follow-up cloth feeding, so as to further ensure the cutting accuracy. By setting the first cloth feeding wheel and the second cloth feeding wheel to be gears and the bottom surface of the presser foot of the presser foot mechanism to be provided with an arc surface matching the first cloth feeding wheel and the second cloth feeding wheel, the conveying and clamping structure of the cloth can be made more stable, so that the cloth cutting can be made more accurate. At the same time, the presser foot is provided with a reset spring so that the presser foot has a certain elastic space to avoid pressing the cloth too tightly to affect the conveying of the first cloth feeding wheel and the second cloth feeding wheel. The invention can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 is a schematic structural diagram from another angle of an embodiment of the present invention; Figure 3It is a partial structural schematic diagram of an embodiment of the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0015] refer to Figure 1-Figure 4The preferred cutting device for a template sewing machine of the present invention comprises a controller, a mounting plate 1 connected to a head body on a frame of the template sewing machine, a cutting knife mechanism, a lifting mechanism 3, a presser foot mechanism 4, a first driving mechanism, a cloth feeding mechanism, an external presser foot mechanism 7 and a third lifting mechanism 8. The cutting knife mechanism can be lifted up and down by the lifting mechanism 3 and is arranged on the mounting plate 1. The cutting knife mechanism comprises a first fixed seat 21, a first rotating seat 22 and a cutting knife unit 23. The cutting knife unit 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 can be rotatably and rotatably arranged on the first fixed seat 21 along a vertical axis. The presser foot mechanism 4 is arranged 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 seat 22, the presser foot mechanism 4 includes a second lifting mechanism, a presser foot, a presser foot rod, and a reset spring. The output end of the second lifting mechanism is connected to the upper end of the presser foot rod. The lower end of the presser foot rod is sleeved with a limiting cylinder. The upper part of the presser foot is inserted into the end of the limiting cylinder away from the presser foot rod and the upper end of the presser foot is provided with a peripheral edge of a protruding outer wall so that the upper end of the presser foot is clamped in the limiting cylinder. The reset spring is inserted into the limiting cylinder and is located between the presser foot rod and the presser foot. The outer presser foot mechanism 7 can be lifted up and down by the third lifting mechanism 8 and is arranged on the mounting plate 1. The outer presser foot of the outer presser foot mechanism 7 is located at the periphery of the presser foot of the presser foot mechanism 4. The cutting knife unit 23 is inserted into the first rotating seat 22, and the cutting knife of the cutting knife unit 23 can pass through the bottom of the first rotating seat 22 and pass through the presser foot of the presser foot mechanism 4. The middle slot is used to cut the cloth on the template sewing machine worktable. The cloth feeding mechanism 6 includes a second fixed seat 61, a second rotating seat 62, a rotating shaft 63, a first cloth feeding wheel 64, a second cloth feeding wheel 65 and a second driving mechanism 66. The second fixed seat 61 is arranged on the template sewing machine worktable and is located below the cutting knife mechanism. The second rotating seat 62 can be rotatably arranged on the second fixed seat 61 along the vertical axis, and the top of the second rotating seat 62 is located below the cutting knife of the cutting knife unit 23 of the cutting knife mechanism. An adaptive cutting knife groove 621 is provided. The rotating shaft 63 is rotatably arranged in the second rotating seat 62. The first cloth feeding wheel 64 and the second cloth feeding wheel 65 are spaced apart and sleeved on the rotating shaft 3, and the top parts of the first cloth feeding wheel 64 and the second cloth feeding wheel 65 pass through The first cloth feeding wheel 64 and the second cloth feeding wheel 65 are on the top surface of the second rotating seat 62, and pass through the top surface of the second rotating seat 62 and are respectively located on both sides of the cutting groove 621, and the first cloth feeding wheel 64 and the second cloth 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 transport the cloth. The first cloth feeding wheel 64 and the second cloth feeding wheel 65 are both gears, and the bottom surface of the presser foot of the presser foot mechanism 4 is provided with an arc surface 41 that matches the first cloth feeding wheel 64 and the second cloth feeding wheel 65. The second driving mechanism 66 is arranged on the second rotating seat 62, and the second driving mechanism 66 is a rotating motor. The second driving mechanism 66 is connected through a synchronous wheel set and drives the rotating shaft 63 to rotate. The first driving 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 arranged on the first fixed seat 21 and the output of the first driving unit 51 is connected through a synchronous wheel set and drives the first rotating seat 22 to rotate. The second driving unit 52 is arranged on the second fixed seat 61 and the output of the second driving unit 52 is connected through a synchronous wheel set and drives the second rotating seat 62 to rotate. The cutting knife mechanism, the lifting mechanism 3, the presser mechanism 4, the outer presser mechanism 7, the third lifting mechanism 8, the first driving mechanism, and the second driving mechanism 66 are all connected and controlled by the controller.

[0016] In the above embodiment, the first driving mechanism and the second driving mechanism can be a servo motor, a rotary stepping motor, a permanent magnet motor, etc., and the cutting knife unit can also be other cutting knife mechanisms that can cut the cloth.

[0017] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A cutting device for a template sewing machine, comprising a controller, a mounting plate connected to a head body on a frame of the template sewing machine, a cutting knife mechanism, a lifting mechanism and a presser foot mechanism, wherein the cutting knife mechanism can be lifted up and down by the lifting mechanism and is arranged on the mounting plate, characterized in that: It also includes a first driving mechanism and a cloth feeding mechanism, the cutting knife mechanism includes a first fixed seat, a first rotating seat and a cutting knife unit, the first fixed seat is connected to the output end of the lifting mechanism, the first rotating seat can be rotatably arranged on the first fixed seat along a vertical axis, 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 cutting knife unit is arranged in the first rotating seat and the cutting knife of the cutting knife unit 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 workbench of the template sewing machine, the feeding mechanism includes 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 workbench of the template sewing machine and is located below the cutting knife mechanism, the second rotating seat can be rotatably arranged along a vertical axis The cam is provided with a first gear and a second gear, and the second gear is provided with a second gear, the first gear is provided with a second gear, the second gear is provided with a second gear, the gear is provided with a first gear, and the gear is provided with a second gear, ...

2. The cutting device for a template sewing machine according to claim 1, characterized in that: The first driving mechanism includes a first driving unit and a second driving unit. The first driving unit is arranged on the first fixed seat and the first driving unit output is connected and drives the first rotating seat to rotate. The second driving unit is arranged on the second fixed seat and the second driving unit output is connected and drives the second rotating seat to rotate.

3. The cutting device for a template 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 via a synchronous wheel set.

4. The cutting device for a template sewing machine according to claim 1, characterized in that: The first cloth feeding wheel and the second cloth feeding wheel are both gears, and the bottom surface of the presser foot of the presser foot mechanism is provided with an arc surface matching the first cloth feeding wheel and the second cloth feeding wheel.

5. The cutting device for a template 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. The output end of the second lifting mechanism drives the presser foot to move up and down via the presser foot rod.

6. The cutting device for a template sewing machine according to claim 5, characterized in that: The presser foot mechanism also includes a reset spring, and the 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 inserted into the end of the limiting cylinder away from the presser foot rod, and the upper end of the presser foot is provided with a peripheral edge of a protruding outer wall so that the upper end of the presser foot is clamped in the limiting cylinder, and the reset spring is inserted in the limiting cylinder and is located between the presser foot rod and the presser foot.

7. The cutting device for a template sewing machine according to claim 1, characterized in that: It also includes an external presser foot mechanism and a third lifting mechanism. The external presser foot mechanism can be lifted up and down by the third lifting mechanism and is arranged on the mounting plate. The external presser foot of the external presser foot mechanism is located at the periphery of the presser foot of the presser foot mechanism.

8. The cutting device for a template sewing machine according to claim 1, characterized in that: The second driving mechanism is a rotating motor, which is connected via a synchronous wheel set and drives the rotating shaft to rotate.

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