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Shell structure of head of sewing machine

The technology of a head casing and a sewing machine is applied to the sewing machine casing, sewing machine components, sewing equipment and other directions, which can solve the problems of narrowing the use space of the inner cavity, installation errors, and high cost, and achieves a large use space and eliminates installation errors and costs. low effect

Active Publication Date: 2010-06-30
XIAN TYPICAL IND
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AI Technical Summary

Problems solved by technology

[0003] The present invention provides a sewing machine head shell structure to overcome the problems of installation errors, reduced inner cavity space, heavy weight and high cost in the prior art

Method used

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  • Shell structure of head of sewing machine
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  • Shell structure of head of sewing machine

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] see Figure 1~2 , a sewing machine head shell structure, including an upper arm, a column, a belt cover and a base plate, said upper arm is composed of an upper cover body 1 and a lower upper arm body 2, and the column is composed of an inner column shell 4 and an outer column shell 5 , wherein the upper arm main body 2, the inner cylindrical shell 4 and the bottom plate 6 are of an integrated structure, the upper cover body 1, the belt cover 3 and the outer cylindrical shell 5 are of an integrated structure, and the two integral structures are connected. Said upper arm main body 2, inner column shell 4 and bottom plate 6 are finished by one-time casting of cast iron material (gray cast iron HT200); said upper cover body 1, belt cover 3 and outer column shell 5 are finished by one-time casting of plastic material, said The top of the upper arm...

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Abstract

The invention relates to the technical field of sewing machines, in particular to the shell structure of the head of a sewing machine. The shell structure overcomes the problems of installation error, small inner cavity use space, large weight and high cost in the prior art. The technical scheme is as follows: the shell structure of the head of the sewing machine comprises an upper arm, a vertical column, a belt cover and a bottom plate. The shell structure is characterized in that the upper arm consists of an upper cover body and an upper arm body at the lower part; the vertical column consists of an inner column shell and an outer column shell; the upper arm body, the inner column shell and the bottom plate are integrated into a whole structure; the upper cover body, the belt cover and the outer column shell are integrated into a whole structure; and the two integrated structures are connected with each other. Compared with the prior art, the shell structure has the advantages of exact positioning,large use space,good rigidity and low cost.

Description

technical field [0001] The invention relates to the technical field of sewing machine equipment, in particular to a shell structure of a sewing machine head. Background technique [0002] The existing sewing machine head shell includes four parts: the upper arm, the column, the belt cover and the base plate, wherein the upper arm and the column are formed by one-time die-casting. They are connected together in a fixed way, and the belt cover is fixed on the column to complete the assembly of the machine head shell. The problems existing in the prior art are: 1. Large installation error: large error when the casing and the bottom plate are matched, which affects the installation and movement of the internal core parts; The use space of the inner cavity of the head shell; 3. Heavy weight and high cost: because it is all made of gray cast iron, the head shell is heavy, inconvenient to use, and the cost of raw materials is high; 4. The connection between the column and the bott...

Claims

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Application Information

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IPC IPC(8): D05B73/00D05B73/02D05B73/04
Inventor 李广晖
Owner XIAN TYPICAL IND
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