KR200260788Y1 - A needle movemwnt device of knitting machine - Google Patents

Abstract

The present invention relates to a needle driving device of a knitting machine, by providing a drive unit structure capable of reciprocating the weaving needle by the rod connection structure to increase the productivity of the product according to the improvement of the fabric production speed, It is to improve the quality of the fabric fabric according to the improvement of the reliability of the device to prevent defects.

The present invention for realizing this, as a drive means for the left and right reciprocating flow of the needle bar 10 of the knitting machine, the driving force from the motor (M) is transmitted via a plurality of transmission means is rotated about the rotation axis The operating cam 23, the operation rod 23, which is eccentrically mounted on the operation cam 23, converts the rotational power into the reciprocating force in the horizontal direction, and the other end of the operation rod 25 is fixed so that the reciprocating force The needle bar 10 has a guide bar 27, one end of which is rotatably mounted with a fixed rod 26 as an axis, so as to be reciprocated within a predetermined angle range during transmission, and a reciprocating rotational force of the guide bar 27. It characterized in that it comprises a connection rod 28 is configured to be connected to deliver.

Description

Needle drive device for knitting machines {A NEEDLE MOVEMWNT DEVICE OF KNITTING MACHINE}

The present invention relates to a knitting machine, and more particularly, a needle driving of a knitting machine to more effectively perform a reciprocating operation of a needle in a knitting machine for manufacturing a fabric using a plurality of needles for a thread supplied continuously. Relates to a device.

In general, the knitting machine is a knitting machine including a ratsel machine, a jacquard, a flange, a tricoater, and the like. The use of the fabric to be produced has the following differences.

In other words, the Lassel machine refers to a machine used for weaving stretch fabrics such as spanners, dress papers, underwear, and nets, which are mainly used in women's clothing. Hurenji is mainly a mosquito net or shading net, and a tricot is a machine used to weave a mesh or a simple tissue.

On the other hand, the Hurenji knitting machine for weaving a net-shaped fabric as an example of the conventional knitting machine described above is repeated flow before and after at a constant angle while guiding the yarn supplied to the upper needles formed in a row on a plurality of needle bar The reciprocating drive is performed at a predetermined pitch in the left and right direction together with the action of the lower needle flowing up and down.

The left and right reciprocating drive of the upper needle is made by a driving unit configured on one side of the apparatus, the conventional driving unit structure is as shown in FIG.

Rotating cam (1) has a working chain (2) is wound around the operating chain (2) is made of a configuration of alternating and varying height, of the drive bar (3) is extended to one end of the needle bar (5) Since the roller 4 is mounted at the front end, the roller 4 is flowed by the operating chain 2 forming the uneven shape when the rotary cam 1 rotates.

That is, the fabrication by the needle is made because the drive bar 3 is repeatedly flown by the alternating height difference of the operating chain (2).

However, in the conventional drive unit structure, the left and right flow widths of the needle bar 5 are determined by the height difference of the operating chain 2, thereby showing a limitation in the flow width.

In addition, the elastic spring (6) for pulling the needle bar to a certain elastic force for this repetitive flow is to be installed, the work precision is reduced due to the repulsive force of the elastic spring (6), the fabric fabric scratches, such elastic force There was a problem such as wear caused by the parts.

The present invention is proposed to improve the above-mentioned conventional problems, by providing a drive structure that can be made more stable reciprocating drive of the needle to prevent damage to the component caused by the failure and wear of the fabric to be manufactured There is a purpose.

In addition, another object of the present invention is to improve the production rate of the fabric by allowing a more rational flow between the needle.

1 is a structural diagram of a needle driver according to the prior art.

Figure 2 is a side view of the knitting machine of the present invention.

3 is a front view of one side of the present invention knitting machine.

Figure 4 is a perspective view of the needle drive unit of the present invention.

5 is a detailed structural diagram of the operation cam of the needle drive unit of the present invention.

Figure 6 shows the front and rear flow of the needle during operation of the knitting machine,

6A is a conventional driving state diagram.

Figure 6b is a driving state in accordance with the present invention.

<Explanation of symbols for main parts of the drawings>

10: needle stand 11: upper needle

12: lower needle 20: worm gear

21: worm wheel shaft 22: chain

23: operating cam 25: operating rod

26: fixed rod 27: guide bar

28: connecting rod M: drive motor

The object is that the upper needle for guiding the thread supplied from the upper side is fixed to the needle bar is installed to enable the left and right reciprocating movement and the forward and backward rotation movement of a predetermined angle, and the upper and lower flows so as to cross with the upper needle In a conventional knitting machine provided with a lower needle for weaving a thread into a mesh: As driving means for flowing the needle bar left and right, the driving force from the motor (M) is received via a plurality of transmission means. An operation cam rotated about a rotation axis; An actuating rod having one end eccentrically mounted on the actuating cam to convert rotational power into a reciprocating force in a horizontal direction; A guide bar rotatably mounted at one end thereof as a shaft for fixing the other end of the operating rod to be reciprocated within a predetermined angle range when the reciprocating force is transmitted; It is possible to achieve through the technical configuration characterized in that it comprises a; connecting rod is configured to connect to transfer the reciprocating rotational force of the guide bar to the needle.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to FIGS. 2 to 6.

First, looking at the overall structure of the knitting machine according to the present embodiment through Figures 2 and 3, the upper needle 11 and the lower needle 12 is to produce a mesh fabric using the yarn supplied from the upper The upper needles 11 are rotated within a predetermined angle in the front-rear direction at the same time as the left and right reciprocating flows while being fixed to the needle bar 10 in a row. The reciprocating flow has a conventional structure, wherein the drive unit of the present invention for flowing the upper needle 11 to the left and right reciprocating flow is installed on one side of the device.

As shown in FIG. 4, the drive unit structure is a worm gear 20 for shifting by receiving power from a driving motor M, which is a power source, and a worm wheel shaft 21 and a chain 22 of the worm gear 20. An actuating cam 23 which receives the driving force by being connected, an actuating rod 25 which is eccentrically fastened to each actuating cam 23 by a fastening bolt 24 to convert rotational power into a reciprocating motion in the horizontal direction, The other end of the operating rod 25 is fixed to the guide bar 27, the guide bar is mounted so that one end is rotatable around the fixed rod 26 to be reciprocated within a predetermined angle range when the reciprocating force is transmitted. It consists of a connecting rod (28) connected by a fixing nut (29) to transfer the reciprocating rotational force of (27) to the needle bar (10) on which the upper needle (11) is mounted.

In particular, the actuating cam 23 has a plurality of fastening holes 23a to which the fastening bolts 24 are to be coupled so as to selectively change the connection position of the actuating rod 25 according to the required flow width of the needle. It was formed in a spiral shape as shown, the guide bar 27 is formed with a control hole (27a) in the longitudinal direction to be freely deformed the height fixed by the fixing nut 29 of the connecting rod 28 It can be confirmed.

In the present embodiment, the needle bar 10 and the upper needle 11 are mounted in two rows. Accordingly, the guide bar 27, the connection rod 28, the operation rod 25, and the operation cam 23 are thus mounted. Also, two of each was installed, and the hot water of the upper needle 11 can be freely additionally mounted according to the fabric to be manufactured.

Unexplained code in the drawing

The operation and action effects of the device of the present invention having such a configuration will be described.

First, when the thread to be woven into the upper needle 11 to operate the drive motor (M), the worm gear shaft 21 is rotated while the worm gear 20 is operated by receiving the power of the drive motor (M) As a result, the rotation force transmitted through the chain 22 rotates the actuating cam 23 so that the actuating rod 25 mounted eccentrically is reciprocated.

And the guide bar 27 is repeatedly flown in a predetermined angle range by the fixed rod 26 by the reciprocating drive of the operation rod 25 to transfer the flow force to the connecting rod 28, the final By flowing the needle bar 10 coupled to the end of the connecting rod 28, the upper needle 11 is left and right reciprocating flow.

At this time, the interval between the reciprocating flow of the upper needle 11 can be adjusted according to the flow range of the operating rod 25, which is a plurality of fastenings are formed on the operating cam 23 with a different distance from the rotation axis. By selecting the ball 23a it is possible to adjust the reciprocating flow interval of the upper needle (11).

Meanwhile, as the upper needle 11 is flowed, the lower needle 12 is also reciprocated up and down by a separate lifting means, so that the mesh fabric can be manufactured. In this embodiment, the upper needle 11 is 2 Since the connection rod 28 and the guide bar 27, the operation rod 25, and the operation cam 23 are also provided in pairs, the upper needles 11 in the two rows each have a reciprocating flow interval. Can be set differently as needed.

In particular, the technical features of the present invention, the upper needle 11 is to receive the reciprocating flow force by the operating rod 25, so that the adjustable range of the left and right flow width of the upper needle 11 can be increased compared to the prior art will be.

That is, when the rod drive unit of the present invention is applied, it is possible to further increase the width of the left and right flow of the upper needle, the conventional pattern that the maximum value of the pattern spacing of the woven fabric is made by the height difference of the working chain Compared to the limited to 4 to 5mm according to the present invention can be increased to 50 to 70mm it is possible to manufacture a wider variety of fabrics.

In addition, the left and right reciprocating flow of the needle according to the rod drive can be performed more stably than the conventional made by the tension force of the spring can be increased the number of rotation of the operating cam from 100 ~ 150RPM to 700 ~ 800RPM, Accordingly, the fabrication speed of the fabric can be improved.

On the other hand, the upper needle 11 is a reciprocating flow by the operation of the drive unit is rotated in the front and back at the same time while the mesh fabric is woven by the crossover operation with the lower needle 12, in this case, conventional operation once When the upper needle and the lower needle were crossed two times during the weaving process, the needle was broken and the weaving defect occurred. That is, as shown in FIG. 6A, the process of passing the upper needle 11 two times between the lower needles 12 while the lower needle 12 is reciprocated in a and b paths while the lower needle 12 is raised (c) is repeated. After the weave was made, the lower needle 12 was lowered again (d).

However, in the knitting operation according to the driving of the present invention, as shown in FIG. 6B, the upper needle 11 passes one time along the path a 'while the lower needle 12 is raised (c'). The lower needle 12 is lowered (d ') before forming the weaving and the upper needle 11 is returned to its original position so as to prevent unnecessary needle contact, and this repetitive operation is applied to the rod driving part of the present invention. Can be done upon.

Therefore, it can be seen that through the operation of the needle to minimize the flow between the upper needle and the lower needle can greatly improve the operating efficiency, thereby preventing the occurrence of defects.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the driving device of the present invention may be variously modified and implemented by those skilled in the art.

However, such modified embodiments should not be individually understood from the technical spirit or prospect of the present invention, and such modified embodiments should fall within the attached utility model registration claims of the present invention.

Knitting machine of the present invention as described above, by providing a drive unit structure capable of reciprocating the weaving needle by the rod connection structure to increase the productivity of the product according to the fabrication speed of the fabric, the occurrence of defects due to parts wear, etc. It can be prevented to exhibit an excellent effect of further improving the quality of the fabric fabric according to the improved reliability of the device.

Claims (3)

The upper needle 11 for guiding the thread supplied from the upper side is fixed to the needle bar 10 so as to be capable of lateral reciprocating motion and a forward and backward rotation movement of a predetermined angle, so as to cross each other with the upper needle 11. In a conventional knitting machine equipped with a lower needle 12 for weaving a thread to be fed while being vertically flown: As a driving means for flowing the needle bar 10 left and right reciprocating, An actuating cam 23 that receives the driving force from the motor M via a plurality of transmission means and is rotated about a rotating shaft; An actuating rod 25 having one end eccentrically mounted to the actuating cam 23 to convert rotational power into a reciprocating force in a horizontal direction; A guide bar (27) having one end pivotably mounted on the fixing rod (26) so that the other end of the actuating rod (25) is fixed so as to be reciprocated within a predetermined angle range when the reciprocating force is transmitted; And a connecting rod (28) configured to be connected to transfer the reciprocating rotational force of the guide bar (27) to the needle bar (10). The method according to claim 1, The operation cam 23, A plurality of fastening holes 23a to which one end of the operating rod 25 is fastened are formed, and the fastening holes 23a are formed at different distances with respect to the rotation axis. Needle drive. The method according to claim 1, The guide bar 27, Needle drive device of the knitting machine, characterized in that the adjustment hole (27a) is formed in the longitudinal direction so as to freely deform the connection position of the connecting rod (28).