Presser foot structure for template sewing machine

Abstract

The utility model relates to the technical field of knitting, and provides a presser foot structure for a template sewing machine, which comprises a machine head body arranged on a frame of the template sewing machine and a presser foot structure arranged on the machine head body, the presser foot structure comprises a driving mechanism, a presser foot, a presser foot rod and a transmission mechanism used for connecting the presser foot rod and the driving mechanism, one end of the presser foot rod is connected with the presser foot, the transmission mechanism comprises an eccentric wheel, a first connecting rod and a second connecting rod, the driving mechanism is arranged on the machine head body, the output end of the driving mechanism is connected with the eccentric wheel to drive the eccentric wheel to rotate, and one end of the first connecting rod is fixedly connected with an eccentric shaft on the eccentric wheel. The other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the end, away from the presser foot, of the presser foot rod. The utility model solves the problems of large vibration amplitude, large inertia and unstable operation during the operation of the presser foot on the machine head of the existing template sewing machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of knitting technology, especially relates to a presser foot structure for template sewing machine. BACKGROUND

[0002] Template sewing machine refers to the full-automatic application template production combined with clothing template CAD software, clothing template sewing CAD software and advanced numerical control technology, which improves production efficiency and product quality, reduces technical requirements of technical workers, and replaces the original manual operation sewing machine with a computer-controlled machine with higher automation. The presser foot installed on the head of the template sewing machine is the most important component, but the presser foot on the head of the existing template sewing machine has a large vibration amplitude and inertia during operation when in use, and the cooperation precision is lacking, which affects the sewing quality. SUMMARY

[0003] Therefore, in view of the above problems, the utility model provides a presser foot structure for template sewing machine which has good mechanical properties, stable structure operation, high cooperation precision and improved sewing quality.

[0004] To solve the technical problem, the utility model adopts the following scheme: a presser foot structure for template sewing machine, which comprises a head body arranged on a rack of the template sewing machine and a presser foot structure arranged on the head body, the presser foot structure comprising a driving mechanism, a presser foot, a presser foot rod and a transmission mechanism for connecting the presser foot rod and the driving mechanism, one end of the presser foot rod being connected with the presser foot, the transmission mechanism comprising an eccentric wheel, a first connecting rod and a second connecting rod, the driving mechanism being arranged on the head body and having an output end connected with the eccentric wheel to drive the eccentric wheel to rotate, one end of the first connecting rod being fixedly connected with an eccentric shaft on the eccentric wheel, the other end of the first connecting rod being hingedly connected with one end of the second connecting rod, and the other end of the second connecting rod being hingedly connected with one end of the presser foot rod away from the presser foot.

[0005] Further improvement also includes a limit switch and a moving seat, the moving seat being arranged on the head body and being movable up and down, and the limit switch being arranged on the head body and being inserted into the position of the moving seat or being loosened to allow the moving seat to move up and down in the moving stroke of the moving seat, the moving seat being sleeved on the presser foot rod and being located on one end of the presser foot rod hingedly connected with the second connecting rod.

[0006] Further improvement, the driving mechanism is a motor.

[0007] Further improvement, the first connecting rod is arranged horizontally and transversely, and the second connecting rod is arranged vertically.

[0008] By adopting the preceding technical scheme, the beneficial effects of the utility model are: through the new design of the presser foot structure on the machine head body, the transmission mechanism connecting the presser foot rod and the driving mechanism adopts the cooperation of the eccentric wheel, the first connecting rod and the second connecting rod, the first connecting rod is driven by the driving mechanism to move up and down through the eccentric wheel and then drives the second connecting rod to move up and down, thereby driving the presser foot on the presser foot rod to move up and down, the overall mechanical performance is good, the structure vibration driven by the up and down movement is small, the inertial force of the up and down movement is greatly reduced, the structure operation is stable, the cooperation precision is high, the sewing quality is improved, the setting of the limit switch and the moving seat can further guarantee the stability of the up and down movement of the presser foot rod, guarantee the vertical precision of the up and down movement, further improve the cooperation precision, and can be widely applied. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a part structure schematic view of the utility model embodiment;

[0010] Figure 2 is another angle part structure schematic view of the utility model embodiment. DETAILED DESCRIPTION

[0011] The utility model will be further explained in combination with the drawings and the specific embodiment.

[0012] REFERENCE Figure 1 and Figure 2 Preferably, the presser foot structure for the template sewing machine of the utility model, including the machine head body 1 arranged on the template sewing machine frame and the presser foot structure arranged on the machine head body 1, the presser foot structure includes driving mechanism 2, presser foot 3, presser foot rod 4 and the transmission mechanism for connecting presser foot rod 4 and driving mechanism 2, one end of presser foot rod 4 is connected with presser foot 3, the transmission mechanism includes eccentric wheel 5, first connecting rod 6, second connecting rod 7, limit switch 8 and moving seat 9, driving mechanism 2 is motor, the driving mechanism 2 is arranged on the machine head body 1 and the output end of driving mechanism 2 is connected with eccentric wheel 5 to drive eccentric wheel 5 to rotate, one end of first connecting rod 6 is fixedly connected with eccentric shaft on eccentric wheel 5, the other end of first connecting rod 6 is hingedly connected with one end of second connecting rod 7, the other end of second connecting rod 7 is hingedly connected with the end of presser foot rod 4 away from presser foot 3, first connecting rod 6 is horizontally transversely arranged, second connecting rod 7 is longitudinally arranged, moving seat 9 is movably arranged on the machine head body 1 and limit switch 8 is arranged on the machine head body 1 and is inserted into the position of moving seat 9 or is loosened to make moving seat 9 movable up and down in the moving stroke of moving seat 9, moving seat 9 is sleeved on presser foot rod 4 and is arranged on the end of presser foot rod 4 hingedly connected with second connecting rod 7.

[0013] The motor of the driving mechanism in the above embodiment can be a servo motor, a stepping motor, a permanent magnet motor, etc., and the motor output end can be directly connected with the eccentric wheel to drive the eccentric wheel to rotate, or the motor output end can pass through a gear to mesh with the eccentric wheel to drive the eccentric wheel to rotate.

[0014] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all of them are within the protection scope of the utility model.

Claims

1. A presser foot structure for a template sewing machine, comprising a head body provided on a frame of the template sewing machine and a presser foot structure provided on the head body, the presser foot structure comprising a driving mechanism, a presser foot, a presser foot lever, and a transmission mechanism for connecting the presser foot lever and the driving mechanism, the presser foot lever being connected to the presser foot at one end, characterized in that: The transmission mechanism comprises an eccentric wheel, a first connecting rod and a second connecting rod, the driving mechanism is arranged on the machine head body and the output end of the driving mechanism is connected with the eccentric wheel to drive the eccentric wheel to rotate, one end of the first connecting rod is fixedly connected with an eccentric shaft on the eccentric wheel, the other end of the first connecting rod is hingedly connected with one end of the second connecting rod, and the other end of the second connecting rod is hingedly connected with the end of the presser bar away from the presser.

2. The presser foot structure for a stencil sewing machine according to claim 1, characterized in that: The position-limiting switch and the moving seat are further included, the moving seat is arranged on the machine head body and can move up and down, the position-limiting switch is arranged on the machine head body and is inserted into the moving seat to position the moving seat or is released to enable the moving seat to move up and down, and the moving seat is sleeved on the presser bar and is located on the end of the presser bar hingedly connected with the second connecting rod.

3. The presser foot structure for a stencil sewing machine according to claim 1, characterized in that: The driving mechanism is an electric motor.

4. The presser foot structure for a stencil sewing machine according to claim 1, characterized in that: The first connecting rod is arranged horizontally and transversely, and the second connecting rod is arranged longitudinally.

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