Auxiliary cloth feeding device for template sewing machine

Abstract

The utility model relates to the technical field of knitting, and provides an auxiliary cloth feeding device for a template sewing machine, which comprises a machine head body arranged on a frame of the template sewing machine, a presser foot mechanism arranged on the machine head body, and an auxiliary cloth feeding mechanism arranged on the machine head body, the auxiliary cloth feeding mechanism comprises a fixed seat, a rotating seat, a rotating shaft, a first cloth feeding wheel, a second cloth feeding wheel, a first driving mechanism and a second driving mechanism, the rotating seat can be rotationally arranged on the fixed seat along a vertical shaft, and an avoiding groove is formed in the position, below the knitting needle, of the top of the rotating seat; the first cloth feeding wheel and the second cloth feeding wheel are arranged on the rotating shaft in a sleeving mode at intervals, and the top parts of the first cloth feeding wheel and the second cloth feeding wheel penetrate out of the top face of the rotating base. The first cloth feeding wheel and the second cloth feeding wheel penetrate out of the top face of the rotating base and are located on the two sides of the avoiding groove respectively, and the first cloth feeding wheel and the second cloth feeding wheel are located under a presser foot of the presser foot mechanism and matched with the presser foot to clamp and convey cloth. The template sewing machine solves the problem that when an existing template sewing machine sews cloth, the cloth is prone to wrinkling due to looseness.

Description

Technical Field

[0001] This utility model relates to the field of knitting technology, and in particular to an auxiliary fabric feeding 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, existing template sewing machines only use a presser foot mechanism to hold the fabric in place while the worktable moves, leaving the fabric in a relatively loose state. This results in wrinkles, affecting not only the sewing process but also the appearance of the finished product. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes an auxiliary fabric feeding device for template sewing machines that improves the matching accuracy and sewing quality.

[0004] To solve this technical problem, the present invention adopts the following solution: an auxiliary fabric feeding device for a template sewing machine, comprising a machine head body mounted on the frame of the template sewing machine, a presser foot mechanism mounted on the machine head body, and an auxiliary fabric feeding mechanism. The auxiliary fabric feeding mechanism includes a fixed base, a rotating base, a rotating shaft, a first feed wheel, a second feed wheel, a first drive mechanism, and a second drive mechanism. The fixed base is mounted on the worktable of the template sewing machine below the presser foot mechanism of the machine head body. The rotating base is rotatably mounted on the fixed base along a vertical axis, and the top of the rotating base is provided with a clearance groove below the knitting needle. The rotating shaft is rotatably mounted inside the rotating seat. The first and second feed rollers are spaced apart and sleeved on the rotating shaft, with the top portions of the first and second feed rollers protruding through the top surface of the rotating seat. The first and second feed rollers protruding through the top surface of the rotating seat are located on both sides of the clearance groove, and are located directly below the presser foot of the presser foot mechanism, cooperating with the presser foot to clamp and convey the fabric. The first drive mechanism is mounted on the rotating seat, and its output end is connected to and drives the rotating shaft to rotate. The second drive mechanism drives the rotating seat mounted on the fixed seat, and is connected to and drives the rotating seat to rotate along the vertical axis.

[0005] In a further improvement, the first drive mechanism is a rotary motor, which is connected to a synchronous wheel set and drives the rotating shaft to rotate.

[0006] In a further improvement, 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.

[0007] In a further improvement, 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.

[0008] In a further improvement, 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.

[0009] In a further improvement, the second drive mechanism drives the rotating seat to rotate via a set of synchronous pulleys.

[0010] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: By setting an auxiliary fabric feeding mechanism that can rotate synchronously 360° on the worktable below the presser foot mechanism of the knitting head body, when the knitting head body is sewing fabric, the first and second feed rollers of the auxiliary fabric feeding mechanism are located directly below the presser foot and rotate to cooperate with the presser foot to clamp and feed the fabric. This ensures that the fabric is clamped on both sides of the knitting needle and follows the direction of fabric travel for sewing, thereby maintaining the rigidity of the fabric and preventing it from shifting during clamping and feeding. This effectively cooperates with the knitting needle for precise sewing of the fabric, and the structure operates stably. It features high precision, improved sewing quality, and excellent sewing effect. Furthermore, the auxiliary fabric feeding mechanism can rotate 360° synchronously, meeting the fabric feeding needs at any angle. By setting both the first and second fabric feeding wheels to gears, and the bottom surface of the presser foot mechanism to have an arc-shaped surface adapted to the first and second fabric feeding wheels, the fabric feeding and clamping structure becomes more stable, resulting in more precise fabric sewing. Simultaneously, the presser foot is equipped with a return spring, providing a certain amount of elasticity to prevent the fabric from being pressed too tightly, thus affecting the feeding of the first and second fabric feeding wheels. It can be widely applied. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0012] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of a partial structure from another angle of an embodiment of the present utility model;

[0014] Figure 4 This is a schematic diagram of a partial structure from another angle of an embodiment of the present utility model. Detailed Implementation

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0016] refer to Figures 1-4 The preferred auxiliary feeding device for a template sewing machine of this utility model includes a head body 2 and an auxiliary feeding mechanism mounted on the template sewing machine frame 1. The head body 2 is equipped with a presser foot mechanism 4 and an outer presser foot mechanism 5. The auxiliary feeding mechanism includes a fixed base 31, a rotating base 32, a rotating shaft 33, a first feeding wheel 34, a second feeding wheel 35, a first driving mechanism 36, and a second driving mechanism 37. The fixed base 31 is mounted on the worktable 11 of the template sewing machine frame 1, located below the presser foot mechanism 4 of the head body 2. The rotating base 32 is rotatably mounted on the fixed base 31 along a vertical axis, and its top is provided with a clearance groove 321 below the knitting needle. The rotating shaft 33 is rotatably mounted within the rotating base 32. The first feeding wheel 34 and the second feeding wheel 35 are spaced apart and sleeved on the rotating shaft 33. The top portions of the first feed roller 34 and the second feed roller 35 protrude from the top surface of the rotating seat 32. The first feed roller 34 and the second feed roller 35 are located on either side of the clearance groove 321 and are positioned directly below the presser foot of the presser foot mechanism 4, engaging with the presser foot to clamp and feed the fabric. Both the first feed roller 34 and the second feed roller 35 are gears. The bottom surface of the presser foot of the presser foot mechanism 4 has an arc-shaped surface adapted to the first feed roller 34 and the second feed roller 35. The first drive mechanism 36 is mounted on the rotating seat 32 and is a rotary motor. The first drive mechanism 36 is connected to a synchronous pulley group and drives the rotating shaft 33 to rotate. The second drive mechanism 37, mounted on the fixed seat 31, drives the rotating seat 32 to rotate via the synchronous pulley group. The first drive mechanism 36 and the second drive mechanism 37 are connected to and controlled by the controller of the template sewing machine.

[0017] The presser foot mechanism includes a lifting mechanism, a presser foot, a presser foot rod, and a return spring. The output end of the 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 circumference protruding from the outer wall so that the upper end of the presser foot is locked in the limiting cylinder.

[0018] In the above embodiments, the first and second feed rollers can also be other rotating rollers that generate frictional resistance with the fabric to achieve fabric conveying. The first and second drive mechanisms can be servo motors, rotary stepper motors, permanent magnet motors, etc.

[0019] 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. An auxiliary fabric feeding device for a template sewing machine, comprising a head body mounted on the frame of the template sewing machine, wherein a presser foot mechanism is provided on the head body, characterized in that: It also includes an auxiliary fabric feeding mechanism, which includes a fixed base, a rotating base, a rotating shaft, a first feed wheel, a second feed wheel, a first drive mechanism, and a second drive mechanism. The fixed base is located on the worktable of the template sewing machine, below the presser foot mechanism of the machine head body. The rotating base is rotatably mounted on the fixed base along a vertical axis, and the top of the rotating base is provided with a clearance groove below the knitting needle. The rotating shaft is rotatably mounted inside the rotating base. The first feed wheel and the second feed wheel are spaced apart and sleeved on the rotating shaft, with the top parts of the first feed wheel and the second feed wheel protruding through the top surface of the rotating base. The first feed wheel and the second feed wheel protrude through the top surface of the rotating base and are located on both sides of the clearance groove. The first feed wheel and the second feed wheel are located directly below the presser foot of the presser foot mechanism and cooperate with the presser foot to clamp and feed the fabric. The first drive mechanism is mounted on the rotating base, and the output end of the first drive mechanism is connected to and drives the rotating shaft to rotate. The second drive mechanism drives the rotating base, which is mounted on the fixed base and connected to the second drive mechanism, to rotate along the vertical axis.

2. The auxiliary fabric feeding device for a template sewing machine according to claim 1, characterized in that: The first drive mechanism is a rotary motor, which is connected to a synchronous wheel set and drives the rotating shaft to rotate.

3. The auxiliary fabric feeding device for a template sewing machine according to claim 1, characterized in that: Both the first and second feed rollers are gears, and the bottom surface of the presser foot of the presser foot mechanism is provided with an arc-shaped surface that is adapted to the first and second feed rollers.

4. The auxiliary fabric feeding device for a template sewing machine according to claim 3, characterized in that: 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.

5. The auxiliary fabric feeding device for a template sewing machine according to claim 4, characterized in that: 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.

6. The auxiliary fabric feeding device for a template sewing machine according to claim 1, characterized in that: The second drive mechanism drives the rotating seat to rotate via a set of synchronous pulleys.

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