Guide mechanism of needle bar

Abstract

The utility model provides a guide mechanism of a needle bar, which comprises a needle bar frame and at least one needle bar arranged on the needle bar frame, a presser foot and a presser foot block used for connecting the presser foot and the needle bar are arranged on the needle bar, an upper head block is arranged at the upper end of the needle bar, and a lower head block is arranged at the lower end of the needle bar. A guide rod for positioning the corresponding needle rod and preventing the needle rod from rotating is arranged on the needle rod frame on one side of the needle rod; and the guide rod is sequentially connected with the needle rod frame, the needle rod upper head block and the presser foot block. The utility model has the advantages of convenient installation and low cost, and is not easy to wear when in use.

Description

TECHNICAL FIELD

[0001] The utility model relates to embroidery machine technical field especially a needle bar's guide mechanism. BACKGROUND

[0002] The needle bar frame of embroidery machine head generally has a plurality of needle bars arranged side by side, and the needle bar has a specific installation angle. When the needle bar moves up and down, in order to prevent the needle bar from rotating and affecting work, a guide panel is generally installed on one side of the needle bar frame, the guide panel is provided with a guide groove corresponding to the needle bar, and a guide block is arranged on the needle bar and matched with the guide groove. When the needle bar moves up and down, the guide block is limited by the guide groove to prevent the needle bar from rotating. However, under the condition that the needle moves up and down at high speed, the guide block moves up and down in the guide groove quickly, friction is generated, the guide panel is prone to deformation after a long time, high temperature is generated by friction, and the guide block and the guide groove can be damaged, and the precision is poor. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problems of the prior art, the utility model provides a guide mechanism of needle bar, which replaces the existing guide block and guide groove with a guide rod, avoids friction, is not easy to be damaged, and prolongs the service life.

[0004] The technical scheme adopted is as follows:

[0005] A guide mechanism of needle bar, comprising a needle bar frame, at least one needle bar arranged on the needle bar frame, a presser foot arranged on the needle bar, and a presser foot block arranged on the needle bar and used for connecting the presser foot and the needle bar, an upper head block arranged on the upper end of the needle bar, and a guide rod arranged on one side of the needle bar frame and used for positioning the corresponding needle bar and preventing the needle bar from rotating, wherein the guide rod is sequentially connected and installed with the needle bar frame, the upper head block of the needle bar and the presser foot block.

[0006] Further, a strip-shaped installation groove for installing the guide rod is arranged on the upper head block, and the length direction of the strip-shaped installation groove is the direction of the connecting line between the guide rod and the axis of the needle bar.

[0007] Further, an installation hole for installing the guide rod is arranged on the needle bar frame and the presser foot block.

[0008] Further, a first spring is arranged on the upper end of the presser foot block of the guide rod.

[0009] Further, a second spring is arranged on the lower end of the presser foot block of the guide rod.

[0010] Further, a plurality of needle bars and guide rods are arranged side by side on the needle bar frame, and the guide rods correspond to the needle bars one by one.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model provides a guide mechanism of needle bar, one side of needle bar is connected with the guide rod for positioning, preventing needle bar from rotating, guide rod is fixedly arranged on needle bar holder, need not to set up the installation structure, compares to the guide panel of setting in prior art, processes guide groove and guide block etc. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of one angle of the utility model;

[0014] Figure 2 It is a structural schematic diagram of another angle of the utility model;

[0015] Figure 3 It is the schematic diagram of the utility model installation on needle bar holder;

[0016] Figure 4 It is the partial dismounting drawing of the utility model;

[0017] Among them, needle bar holder 1, needle bar 2, guide rod 3, presser foot block 4, upper head block 5, strip installation groove 6, first spring 7, second spring 8, presser foot 9. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with specific embodiment.

[0019] Reference Figure 1 、 2 、3、4, a guide mechanism of needle bar, including needle bar holder 1, at least one needle bar 2 of setting on needle bar holder 1, the needle bar 2 of being equipped with presser foot 9 and the presser foot block 4 for connecting presser foot and needle bar, the needle bar 2 upper end is equipped with upper head block 5, the needle bar holder 1 is located needle bar 2 one side and is equipped with the guide rod 3 of corresponding needle bar positioning, preventing needle bar from rotating, the guide rod 3 is connected installation in proper order with needle bar holder 1, needle bar upper head block and presser foot block.

[0020] The guiding rod 3 is fixed on the needle bar frame 1 and cannot move, and the guiding rod 3 is connected with the needle bar 2 through the upper head block and the presser foot block, so that the guiding rod 3 can limit the rotation of the needle bar, the needle bar can only move up and down, and the needle bar is guided, thereby preventing the rotation of the needle bar from affecting work. The upper head block 5 is provided with a strip-shaped mounting groove 6 for mounting the guiding rod 3, and the length direction of the strip-shaped mounting groove 6 is arranged to be the direction of the connecting line between the guiding rod 3 and the axis of the needle bar 2. The strip-shaped mounting groove 6 reduces the requirement for mounting precision, facilitates better mounting of the guiding rod 3, and the strip-shaped mounting groove 6 is arranged, so that the upper head block has sufficient movement space, the up-and-down movement of the needle bar is not limited, and the needle bar can better move up and down relative to the guiding rod 3.

[0021] The needle bar frame 1 and the presser foot block 4 are both provided with mounting holes for mounting the guiding rod 3. The guiding rod 3 is connected with the needle bar frame 1 and the presser foot block 4 through the mounting holes.

[0022] The first spring 7 is arranged between the presser foot block 4 and the upper head block 5 of the needle bar. The second spring 8 is arranged at the lower end of the guiding rod 3. When the upper head block of the needle bar is driven by an external driving block to move downward, the first spring 7 is compressed downward, the presser foot block 4 is driven to move downward, and the presser foot is driven to move downward. When the needle bar is reset upward, the second spring 8 helps the presser foot block 4 to reset upward, and the presser foot is also reset upward.

[0023] The existing spring for driving the presser foot to move downward is generally arranged on the needle bar, the spring is compressed by the downward movement of the needle bar, the presser foot block is driven to move downward under the elastic force of the spring, and the presser foot is driven to move downward, the driving direction of the spring is not in a straight line with the mounting direction of the presser foot. The spring is arranged on the guiding rod according to the utility model, is directly arranged above the presser foot, the force is directly applied to the presser foot, the presser foot is driven more labor-saving, the load of the driving motor is reduced, meanwhile, the presser foot moves downward more quickly and smoothly.

[0024] The needle bar frame 1 is provided with a plurality of needle bars 2 and guiding rods 3 side by side, and the guiding rod 3 corresponds to the needle bar 2 one by one. The guiding rod 3 is arranged on the existing upper end connecting frame of the needle bar frame 1, without the need of arranging a mounting frame and a guiding panel, so that the material and the processing and installation cost are saved, and the installation is convenient.

[0025] The above only describes optional embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the utility model and according to the contents of the utility model specification and the drawings are included in the patent protection range of the utility model.

Claims

1. A needle bar guiding mechanism, comprising a needle bar frame (1) and at least one needle bar (2) disposed on the needle bar frame (1), wherein the needle bar (2) is provided with a pressure foot (9) and a pressure foot block (4) for connecting the pressure foot and the needle bar, and an upper end block (5) is provided at the upper end of the needle bar (2), characterized in that: The needle bar frame (1) is provided with a guide rod (3) on one side of the needle bar (1) for positioning the corresponding needle bar and preventing the needle bar from rotating, and the guide rod (3) is sequentially connected and installed with the needle bar frame, the upper head block of the needle bar and the presser foot block.

2. The needle bar guide mechanism according to claim 1, wherein: The upper head block (5) is provided with a strip-shaped installation groove (6) for installing the guide rod (3), and the length direction of the strip-shaped installation groove is the direction of the axis connecting line of the guide rod and the needle bar.

3. The needle bar guide mechanism according to Claim 1, wherein: The needle bar frame (1) and the presser foot block (4) are both provided with an installation hole for installing the guide rod (3).

4. The needle bar guide mechanism according to Claim 1, wherein: A first spring (7) is sleeved on the upper end of the presser foot block (4) of the guide rod (3), and the first spring (7) is arranged between the presser foot block (4) and the upper head block (5) of the needle bar.

5. The needle bar guide mechanism according to Claim 1, wherein: A second spring (8) is arranged on the lower end of the presser foot block (4) of the guide rod (3).

6. The needle bar guide mechanism according to Claim 1, wherein: The needle bar frame (1) is provided with a plurality of needle bars (2) and guide rods (3) arranged side by side, and the guide rods (3) correspond to the needle bars (2) one by one.

Images