A needle bar mounting structure

Abstract

The utility model provides a kind of installation structure of needle bar, including needle bar and be located on the upper end of needle bar, injection molding's upper head block, the lower end of the upper head block is equipped with boss column, the upper needle bar is equipped with and boss column is matched, for boss column insertion connection's connecting hole.The utility model upper head block injection molding, set boss column and needle bar cooperation connection, processing is convenient, and cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to embroidery machine technical field especially a kind of installation structure of needle bar. BACKGROUND

[0002] The upper block of the prior art installed on the upper end of needle bar, in order to be connected with needle bar, usually is provided with connecting hole for connecting needle bar, needle bar is inserted into the connecting hole of upper block and is connected, in order to ensure the connection accuracy, additional independent finish connecting hole is needed, the precision requirement is high, the positioning connecting hole between the positioning connecting hole of needle bar and upper block needs certain matching precision, to ensure that the needle clamp head hole of needle bar and upper block have specific preset angle after upper block installation. Therefore it will lead to high production and assembly cost. SUMMARY

[0003] In order to solve the problems of the prior art, the utility model provides an installation structure of needle bar, injection molding upper block is connected with needle bar, and the processing cost is low, and installation is convenient.

[0004] The technical scheme adopted is as follows:

[0005] An installation structure of needle bar, comprising needle bar and injection molding upper block arranged on the upper end of needle bar, the lower end of the upper block is provided with a convex column, and the needle bar is provided with a connecting hole matched with the convex column for inserting and connecting the convex column.

[0006] Further, at least one mounting hole is arranged at the matching position of the convex column and the side wall of the needle bar.

[0007] Further, a pin is arranged in the mounting hole for fixing and mounting.

[0008] Further, the mounting hole is provided with two, and the pin is correspondingly provided with two.

[0009] Further, the mounting holes are symmetrically arranged, the convex column is provided with a through hole matched with the two mounting holes, and the pin is provided with one.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The utility model provides an installation structure of needle bar, comprising needle bar, injection molding upper block, the upper block is arranged on the upper end of needle bar, and is connected with needle bar, the upper block is provided with convex column, the needle bar is provided with connecting hole matched with convex column, the convex column is inserted into connecting hole and is connected with needle bar, the side wall of needle bar is directly formed upper block by injection molding, the step of processing mounting hole in upper block is omitted, the pin is connected with needle bar and upper block, overall installation and disassembly are convenient, the precision requirement is small, and the processing cost is low. It can be further fixed by arranging mounting hole and pin on the side wall of needle bar. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a partial disassembly view of the utility model;

[0013] Figure 2 is a side schematic view of the utility model;

[0014] Figure 3 is a perspective view of the utility model;

[0015] Among them, needle bar 1, upper head block 2, convex column 3, connecting hole 4, mounting hole 5, pin 6, through hole 7. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with specific embodiments.

[0017] Reference Figure 1 、 2 , 3, a needle bar mounting structure, including needle bar 1 and be located needle bar 1 upper end, injection molding's upper head block 2, the lower end of the upper head block 2 is equipped with convex column 3, the needle bar 1 is equipped with with convex column, for the convex column insertion connection's connecting hole 4 that cooperates.

[0018] Upper head block 2 is integrally injection molded by mould, does not need to set up the mounting hole that cooperates with needle bar, has saved the step of processing, has reduced the processing cost that produces for guaranteeing the matching precision.The upper head block 2 can be formed by engineering plastics injection.

[0019] The lower end of the upper head block is equipped with the convex column that cooperates with needle bar 1, and the convex column is inserted into the connecting hole 4 provided in the needle bar 1 and is connected with the needle bar 1.

[0020] The needle bar side wall is equipped with at least one mounting hole 5 at the matching place of convex column.The mounting hole 5 is equipped with pin 6 for fixed installation in it.

[0021] As a kind of connecting mode, mounting hole 5 is set on the side surface of needle bar 1, then pin 6 is inserted into mounting hole 5, in this way, upper head block 2 is installed.As preferred, the mounting hole 5 is equipped with two, and the pin is correspondingly equipped with two.Set two mounting holes and pins, so that needle bar 1 and upper head block 2 are installed more closely.

[0022] As another connecting mode, two symmetrically arranged mounting holes 5 are arranged on the side surface of needle bar 1, the convex column 3 is equipped with through hole 7 that cooperates with two mounting holes, and the pin 6 is equipped with one.

[0023] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A mounting structure of a needle bar, characterized by: The utility model relates to a needle rod (1) and the upper head block (2) of injection molding on the upper end of needle rod (1) are included, the lower end of upper head block (2) is equipped with the boss (3), the upper needle rod (1) is equipped with the connecting hole (4) that is matched with boss, is inserted into the connection of boss.

2. The needle bar mounting structure according to claim 1, characterized in that: The needle rod side wall is equipped with at least one mounting hole (5) with boss cooperation.

3. The needle bar mounting structure according to claim 2, wherein: The mounting hole (5) is equipped with the cotter pin (6) for fixed installation.

4. The needle bar mounting structure according to claim 3, wherein: The mounting hole (5) is equipped with two, and the cotter pin is correspondingly equipped with two.

5. The needle bar mounting structure according to claim 3, wherein: The mounting hole (5) is symmetrically arranged, the boss (3) is equipped with the through hole (7) that is matched with two mounting holes, and the cotter pin (6) is equipped with one.

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