KR200355816Y1 - Needle Guide Apparatus of Raschel Machine for 3-Link Needle - Google Patents

Abstract

The present invention relates to a needle guide device of a three-link needle raschel machine, the eccentric cam (10) rotated by a motor; A coupling piece 20 rotatably inserted into an outer circumferential surface of the eccentric cam 10 and having a rod 22 protruding on the outer circumferential surface thereof; A first link 100 whose both ends are rotated about an axis thereof, and one end of which is rotatably coupled to the rod 22 of the coupling piece 20; A connection link 120 having one end rotatably coupled to the other end of the first link 100; A second link 110 having one end rotated about an axis thereof, and one end of which is rotatably coupled to the other end of the connection link 120; A first push rod (30) having one end rotatably coupled to the other end of the second link (110); A first rotating bar 40 having one end rotated on the shaft and one end thereof rotatably coupled with the other end of the first push rod 30; A second push rod 50 having one end rotatably coupled to one side of the first pivot bar 40; A second pivot bar 70 having one end rotated on an axis thereof and one end of which is rotatably coupled with the other end of the second push rod 50; Yarn guide (60) integrally installed to interlock with the hinge portion (70a) of the second pivoting bar (70); consisting of, it is possible to achieve a high-speed operation of the machine while simplifying the configuration of the machine.

Description

Needle Guide Apparatus of Raschel Machine for 3-Link Needle

The present invention relates to a needle guide device of a three-link needle raschel machine, and more particularly, a three-link needle in which a guide needle of a high-speed raschel machine to which a three-link needle drive device is applied satisfies the stroke of the knitting needle. It relates to a needle guide device for a rassel machine.

In general, a net laselle group is a kind of knitting machine, and is a machine usually used when knitting a woven fabric such as a net.

In this Raschel machine, two needles are provided, one of which is a knitting needle for knitting a fabric, and the other is composed of a guide needle for guiding a knitting needle for knitting a fabric.

Such a guide needle is driven by a stroke corresponding to the stroke of the knitting needle by the guide device, which will be described with reference to FIGS. 1 and 2.

As shown, the guide device 2, the lower portion is provided with an eccentric cam 10 driven by a motor, the hollow coupling piece 20 is inserted into the outer peripheral surface of the eccentric cam 10, A protruding rod 22 is formed on the outer circumferential surface of the engaging piece 20.

One end of the first push rod 30 is connected to the rod 22 of the coupling piece 20, and one end of the first push rod 30 is connected to the main body of the guide device 2 (not shown). One side of the first pivot bar 40 rotatably hinged 40a at the time) is rotatably coupled.

In addition, a second push rod 50 is rotatably coupled to the first pivot bar 40, and one side of another second pivot bar 70 is rotatable to the other end of the second push rod 50. To be combined.

One end of the second pivoting bar 70 is rotatably hinged 70a to the main body of the guide device and is integrally fixed to the hinge portion 70a so that the yarn guide 60 is interlocked.

The conventional needle guide device made in this way will be described.

First, when a driving device (not shown) for driving a knitting needle is operated, a motor installed in the guide device 2 is driven to rotate the eccentric cam 10.

Then, the coupling piece 20 coupled to the outer circumferential surface of the eccentric cam 10 is linearly reciprocated up and down, and the first push rod 30 connected to the rod 22 of the coupling piece 20 is coupled. Straight reciprocating motion up and down like piece 20.

The second push rod 50 is operated while the first pivot bar 40 connected to the first push rod 30 is rotated through the hinge portion 40a of one end thereof, and the second push rod 50 is operated. By the second rotation bar 70 is rotated together with the yarn guide 60 via the hinge portion 70a of one end thereof.

Accordingly, the guide needle driven by the guide device 2 as described above is driven in a stroke corresponding to the stroke of the knitting needle.

On the other hand, the conventional guide device 2 as described above is designed such that the driving method of the knitting needle is suitable for the low speed driving method by the port cam.

However, the knitting needle driving method of the Raschel machine is developed from the low speed driving method by the port cam to the high speed driving method by the 5-link and the eccentric cam, and this development is again performed by the high speed driving by the 3-link and the eccentric cam. Since the trend has evolved to simplify the structure, the driving method of the guide device 2 has been required to be redesigned accordingly.

That is, in the driving method of the knitting needles using the 5-link and the eccentric cam, the conventional guide device 2 can be applied as it is. The redesign of the guide device 2 is required so that the stroke of the guide needle, i.e., the movement curve of the guide needle, is significantly different from that of the knitting needle, that is, the motion curve of the knitting needle. It became.

Therefore, the present invention has been made to solve the problems of the prior art as described above, by configuring a three-link guide device in the guide device of the high-speed raschel machine is applied to the needle drive device for knitting by the three-link It is an object of the present invention to provide a needle guide device of a Raschel machine for a 3-link needle, in which the stroke of the guide needle is formed to correspond to the stroke of the knitting needle.

1 is a view showing a conventional needle guide device.

2 is a graph showing a motion curve of a conventional needle guide device.

3 and 4 is a view showing the operating state of the needle guide device at the bottom dead center and the top dead center of the eccentric cam according to the present invention.

5 is a graph showing a movement curve of the needle guide device according to the present invention.

<Description of the symbols for the main parts of the drawings>

α: The angle between the extension line connecting the center of the rod axis, the center of the coupling piece and the center of the eccentric cam in a straight line, and the X axis of the center of the eccentric cam

β: angle formed at both ends of the second link

L: length of long side of second link

l: length of short side of the second link

2: guide device 10: eccentric cam

20: coupled piece 22: rod

30: first push rod 40: first rotating bar

40a: hinge portion 50: second push rod

60: yarn guide 70: second rotation bar

70a: hinge portion 100: first link

100a: rotation axis 110: second link

110a: rotation axis 120: connection link

Needle guide device for a three-link needle raschel machine of the present invention for achieving the above object is an eccentric cam rotated by a motor; A coupling piece rotatably inserted into an outer circumferential surface of the eccentric cam and having a rod protruding from the outer circumferential surface; A first link having both ends rotated about one side thereof and one end thereof rotatably coupled to a rod of the engaging piece; A connection link rotatably coupled at one end to the other end of the first link; A second link having both ends rotated about one side thereof, and one end of which is rotatably coupled to the other end of the link; A first push rod whose one end is rotatably coupled to the other end of the second link; A first pivot bar having one end rotated on the shaft and one end of which is rotatably coupled to the other end of the first push rod; A second push rod having one end rotatably coupled to one side of the first pivot bar; A second pivoting bar having one end rotated on the shaft and one end thereof rotatably coupled with the other end of the second push rod; And a yarn guide integrally installed to interlock with a hinge portion of the second pivoting bar.

In addition, the rod of the coupling piece, the extension line connecting the center of the rod axis, the center of the coupling piece and the center of the eccentric cam in a straight line, and the angle formed by the X axis of the eccentric cam center at the upper and lower dead center is 58 degrees do.

The second link may be formed so that both ends thereof form an angle of 130 degrees.

In addition, the second link is characterized in that the length of the end portion connected to the both ends, that is, the end connected to the first push rod and the length of the end connected to the linking link is formed at a ratio of 2: 1 around the rotation axis of one side.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.

First, prior to describing the present invention, the same reference numerals are given to the same parts as in the prior art, and redundant description thereof will be omitted.

3 to 5 are diagrams showing a needle guide device according to the present invention and a graph showing a movement curve thereof.

Guide device 2 of the present invention, as shown, the three-link unit is installed between the coupling piece 20 and the first push rod (30).

The 3-link unit is composed of first and second links 100 and 110 and a connection link 120 that are bent in a substantially "V" shape.

One side of the first link 100 is rotatably coupled to a rotation shaft 100a installed at a main body (not shown) of the guide device 2, and the first link 100 is centered on the rotation shaft 100a. Both ends of are rotated together with the lever.

The first link 100 rotated as described above, one end thereof is rotatably coupled to the rod 22 of the coupling piece 20, and the other end thereof is rotatably coupled to one end of the connection link 120.

At this time, the rod 22 of the coupling piece 20, in the upper and lower dead center and the extension line connecting the center of the shaft of the rod 22, the center of the coupling piece 20 and the center of the eccentric cam 10 in a straight line. The angle (α) formed with the X axis of the center of the eccentric cam 10 of the is formed to 58 degrees, which forms the stroke and period of the guide needle operated by the guide device 2 to correspond to the stroke and period of the knitting needle For sake.

In addition, one end of the second link 110 is rotatably coupled to the other end of the connection link 120, and the other end of the second link 110 is rotatably coupled to the lower end of the first push rod 30. .

One side of the second link 110 is rotatably coupled to the rotation shaft 110a of the guide device 2, and both ends thereof rotate around the rotation shaft 110a like a lever.

At this time, the second link 110 is formed such that both ends thereof form an angle β of 130 degrees.

In addition, the second link 110 has a length L of both ends thereof, that is, connected to the first push rod 30 and a length l of an end connected to the connection link 120 about the rotation shaft 110a. Is formed in a ratio of 2: 1, and in a preferred embodiment, 84 mm and 42 mm in length, which are also guide needles together with the above-described rod 22 angle α of the coupling piece 20. The purpose is to form the stroke and cycle of the needle in correspondence with the stroke and cycle of the knitting needle.

That is, when the rod 22 of the second link 110 and the coupling piece 20 exceeds or falls below the above-described angle β (α), the knitting needle driven by the 3-link driving method is used. Administration and cycles cannot be satisfied.

In addition, a first pivot bar 40, a second push rod 50, a second pivot bar 70, and a yarn guide 60 are sequentially connected to the upper end of the first push rod 30 as in the prior art. And interlocked.

Hereinafter, the operation of the guide device according to the present invention configured as described above.

First, as shown in FIG. 3, when the center of the eccentric cam 10 is located below the left side of the center of the coupling piece 20, that is, at the bottom dead center of the eccentric cam 10, the coupling piece 20 is the first. The state is advanced as far as the link 100 side.

In this state, when the motor (not shown) connected to the eccentric cam 10 is operated and the eccentric cam 10 is rotated, as shown in FIG. 4, the center of the eccentric cam 10 is the center of the coupling piece 20. At the top dead center of the upper right side, that is, the eccentric cam 10, the engaging piece 20 is pulled as far as possible to retreat.

As described above, when the rod 22 of the coupling piece 20 is pulled as much as possible, the first link 100 connected thereto is rotated counterclockwise around the rotation shaft 100a of one side thereof.

In addition, the second link 110 connected to the first link 100 via the connection link 120 is rotated in a clockwise direction about the rotation shaft 110a of one side thereof.

The first push rod 30, the first pivot bar 40, the second push rod 50, and the second pivot bar 70 are linked to each other by the second link 110 rotated as described above. (60) is activated.

Then, when the eccentric cam 10 is further rotated and positioned as shown in FIG. 3, the rod 22 of the coupling piece 20 is as advanced as possible toward the first link 100 and is connected to the link 100 and 110. 120 and the first push rod 30, the first pivot bar 40, the second push rod 50, the second pivot bar 70 is operated in the reverse direction described above to operate the yarn guide 60 Let's go.

On the other hand, it can be seen that the guide needle by the guide device 2 operated as described above is operated as a stroke and a cycle corresponding to the knitting needle of the three-link drive type, as shown in FIG.

As described above, according to the needle guide device of the three-link needle raschel machine of the present invention, the stroke and cycle of the guide needle operated by the guide device are formed corresponding to the stroke and cycle of the knitting needle, While simplifying the configuration of the cell machine has the effect of achieving a high speed operation of the machine.

Claims (4)

An eccentric cam 10 rotated by a motor; A coupling piece 20 rotatably inserted into an outer circumferential surface of the eccentric cam 10 and having a rod 22 protruding on the outer circumferential surface thereof; A first link 100 whose both ends are rotated about an axis thereof, and one end of which is rotatably coupled to the rod 22 of the coupling piece 20; A connection link 120 having one end rotatably coupled to the other end of the first link 100; A second link 110 having one end rotated about an axis thereof, and one end of which is rotatably coupled to the other end of the connection link 120; A first push rod (30) having one end rotatably coupled to the other end of the second link (110); A first rotating bar 40 having one end rotated on the shaft and one end thereof rotatably coupled with the other end of the first push rod 30; A second push rod 50 having one end rotatably coupled to one side of the first pivot bar 40; A second pivot bar 70 having one end rotated on an axis thereof and one end of which is rotatably coupled with the other end of the second push rod 50; And a yarn guide (60) integrally installed to interlock with the hinge portion (70a) of the second pivot bar (70). The method of claim 1, The rod 22 of the coupling piece 20 has an extension line connecting the center of the shaft 22 of the rod 22, the center of the coupling piece 20, and the center of the eccentric cam 10 in a straight line, and an eccentricity at the top and bottom dead center. A needle guide device for a Raschel machine for a three-link needle, characterized in that the angle α formed by the X axis of the cam 10 is 58 degrees. The method according to claim 1 or 2, The second link (110), the needle guide device of the raschel machine for a three-link needle, characterized in that both ends are formed to form an angle (β) of 130 degrees. The method of claim 3, wherein The second link 110 has a length L of both ends thereof, ie, an end connected to the first push rod 30 and a length l of an end connected to the connection link 120 about the rotation shaft 110a of one side thereof. ) Is a needle guide device of a lagell group for a 3-link needle, characterized in that formed in a ratio of 2: 1.