Auxiliary lifting mechanism of presser foot of computerized embroidery machine

Abstract

The invention relates to an auxiliary lifting mechanism of a presser foot of a computerized embroidery machine, which is designed aiming at the technical problem of poor structure of the auxiliary lifting mechanism (a cam mechanism) of the presser foot of the computerized embroidery machine. A link mechanism adopting three connecting rods is arranged in the auxiliary lifting mechanism of the presser foot and is in a Y shape, one end of the link mechanism is fixed in a casing of a machine head by a shaft A, and the other two ends are respectively fixed at a slide block A and a slide block B. In a group of link mechanism comprising a three-hole connecting rod A, a two-hole connecting rod B and a two-hole connecting rod C, the three-hole connecting rod A is bent in an arc shape; and a hole C1 of the three-hole connecting rod A is connected with a hole A2 of the two-hole connecting rod B by a pin shaft, and a hole A1 of the three-hole connecting rod A is connected with a hole A3 of the two-hole connecting rod C by a pin shaft. The invention has high running accuracy, small noise, convenient maintenance, assembly and use, good movement matching synchronism and stability, low production cost and extensive application range and is suitable for a high-speed computerized embroidery machine and similar tailoring equipment.

Description

technical field [0001] The invention relates to a computerized embroidery machine, in particular to an auxiliary lifting mechanism for a presser foot of a computerized embroidery machine. Background technique [0002] Embroidery machine, also known as embroidery machine, is a sewing machine used for embroidery. The working method of traditional mechanical embroidery machine is: replace the sewing machine with a bottom plate with a small round hole, the needle keeps going in and out, and then use the hand-held embroidery frame, Hold the cloth taut. However, with the introduction of electronic technology into the field of sewing machines in 1975, the functional characteristics of embroidery were added to the computerized sewing machine, and the mechanical embroidery machine entered the era of computer-controlled mechatronics from mechanical control. Based on the microprocessor, these computerized embroidery machines make appropriate changes to the software and hardware of the...

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Problems solved by technology

[0004] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a computerized embroidery machine presser foot auxiliary lifting mechanism with three links instead of a cam mechanism, so that it can solve the problem of using a cam mechanism in the existing computerized embroidery machine presser foot auxiliary lifting mechanism. Lifting the presser foot will cause the cam mechanism to rotate noisy, poor synchronization of movement, instability, easy damage, inconvenient assembly and maintenance, and high production costs. The purpose is to achieve the following technical solutions

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