Tooth rack structure of sewing machine

Abstract

The utility model provides a tooth frame structure of a sewing machine, which further realizes the adjustment of the swing amplitude of a step feeding tooth on the basis of the designed swing amplitude of a tooth frame of the sewing machine, and further improves the adaptability of the sewing machine to different fabrics, thereby ensuring the sewing efficiency and the sewing effect, and comprises a tooth frame body of the sewing machine, the sewing machine tooth frame body is provided with step feeding tooth mounting screw holes, and is characterized in that the sewing machine tooth frame body is provided with a plurality of groups of step feeding tooth mounting screw holes corresponding to the movement direction of the tooth frame.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing equipment, in particular to a sewing machine tooth frame structure. Background Art

[0002] During the mechanical sewing process, the fabric to be sewn is transported back and forth by the swing of the feed teeth. Due to the different fabrics, the swing amplitude of the tooth frame usually needs to be adjusted. The overall swing amplitude of the tooth frame is relatively fixed, which affects the adjustment of the swing amplitude of the feed teeth on the tooth frame, thereby affecting the sewing efficiency and sewing effect. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a sewing machine tooth frame structure, which further realizes the adjustment of the swing amplitude of the feeding teeth on the basis of the tooth frame swing amplitude designed for the sewing machine, thereby further improving the adaptability of the sewing machine to different fabrics, thereby ensuring sewing efficiency and sewing effect.

[0004] The technical solution is as follows: a sewing machine tooth frame structure, which includes a sewing machine tooth frame body, on which a feed tooth mounting screw hole is provided, and is characterized in that a plurality of groups of feed tooth mounting screw holes are provided on the sewing machine tooth frame body corresponding to the movement direction of the tooth frame.

[0005] Its further feature is that two groups of feeding tooth mounting screw holes are arranged on the sewing machine tooth frame body.

[0006] The utility model adopts the above scheme. Since a plurality of groups of feed tooth mounting screw holes are arranged on the sewing machine tooth frame body corresponding to the tooth frame movement direction, the feed tooth is installed through different feed tooth mounting screw holes. On the basis of the tooth frame swing amplitude designed for the sewing machine, the feed tooth swing amplitude is further adjusted, thereby further improving the adaptability of the sewing machine to different fabrics, thereby ensuring sewing efficiency and sewing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the sewing machine tooth frame of the utility model. DETAILED DESCRIPTION

[0008] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0009] See Figure 1A sewing machine tooth frame structure includes a sewing machine tooth frame body 1, on which a feed tooth mounting screw hole 2 is arranged, and a plurality of groups of feed tooth mounting screw holes 2 are arranged on the sewing machine tooth frame body 1 corresponding to the movement direction of the tooth frame. The feed teeth are installed through different feed tooth mounting screw holes. On the basis of the swing amplitude of the tooth frame designed for the sewing machine, the swing amplitude of the feed teeth is further adjusted, thereby further improving the adaptability of the sewing machine to different fabrics, thereby ensuring the sewing efficiency and sewing effect.

[0010] Preferably, two sets of feed tooth mounting screw holes 2a-1, 2a-2, 2b-1, 2b-2 are provided on the sewing machine tooth frame body 1, which ensures the adjustment of the front and rear amplitude of the feed tooth, improves the adaptability of the sewing machine to different fabrics, and thus ensures sewing efficiency and sewing effect.

[0011] The working principle of the utility model patent is explained below with reference to the accompanying drawings:

[0012] The tooth frame sliding shaft 3 is placed in the tooth fork 5 of the tooth lifting crank 4, and the tooth fork 5 is swung to push the tooth lifting amplitude of the feed tooth on the tooth frame. Under the premise that the relative position of the feed tooth and the needle plate tooth groove remains unchanged, when the feed tooth is installed at different positions on the tooth frame body 1, the relative positions of the tooth fork 5 and the tooth frame sliding shaft 3 are different, and the tooth lifting amplitude of the tooth frame body 1 is different, so that the feed tooth lifting amplitude is different and the cloth feeding thrust is different during the operation of the sewing machine, so that the tooth frame in the utility model patent can achieve different cloth feeding thrusts and is suitable for sewing different fabrics.

[0013] The utility model can also adopt other numbers of screw holes for installing the stepping teeth.

[0014] The utility model and its implementation methods are described schematically above, which is not restrictive. What is shown in the accompanying drawings is only one of the implementation methods of the utility model, and the actual structure is not limited to this. Ordinary technicians in this field can be inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the purpose of the invention. They should all fall within the scope of protection of the utility model.

Claims

1. A sewing machine tooth frame structure, comprising a sewing machine tooth frame body, wherein the sewing machine tooth frame body is provided with a feeding tooth mounting screw hole, characterized in that: The sewing machine tooth frame body is provided with a plurality of groups of feeding tooth mounting screw holes corresponding to the tooth frame movement direction.

2. A sewing machine tooth frame structure according to claim 1, characterized in that: The sewing machine tooth frame body is provided with two groups of feeding tooth mounting screw hole ends.

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