JPS6123301B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a drive control device for a yarn guiding reed in a warp knitting machine, particularly a patterning drive device for continuously applying an appropriate amount of displacement to the yarn guiding reed for each knitting course.
The so-called summing mechanism does not operate on a single setting piece such as a handle chain, but instead combines multiple displacements, totals the combined displacements, and converts the total displacement into the amount of underlap of the thread guide reed. The present invention relates to a drive control device for a yarn guiding reed in a warp knitting machine equipped with a warp knitting machine.

Conventionally, in warp knitting machines equipped with the above-mentioned summing mechanism, a pattern chain link is used separately from the summing mechanism as a pattern drive device used to control the fabric reed for knitting the ground structure among the thread guiding reeds. A drum equipped with a knitting machine or a pattern disk is used, so overlapping is carried out over multiple knitting needles especially for fabrics with a wide variety of textures, for example, to form narrow lace fabrics. If it is necessary to do so, a long chain link is required for the length of the knitting course, and as a result, a large amount of installation space is required, it is time-consuming to install the chain link, and it is unnecessary to balance the chain link. This required a large chain and was extremely uneconomical.

In addition, among the thread guide reeds, the handle reed for guiding the pattern thread to the ground structure can be used for floating patterns.
This was impossible because the summing mechanism that drives this could only control the amount of underlap.

In other words, in order to knit a floating pattern, the pattern reed must perform an overlapping motion against the knitting needles to cause the pattern yarn to overlap the knitting needles at the left and right folding points, thereby causing the pattern yarn to act on the hooks of the knitting needles. However, since the conventional type has a summing mechanism that controls the amount of underlap, it can only work for sinking handles.

The present invention has been made in order to eliminate the above-mentioned drawbacks of warp knitting machines equipped with a summing mechanism as a driving device for the yarn guiding reed, and it is possible to eliminate the overlay of the yarn guiding reed while maintaining control by the summing mechanism. The present invention provides a drive control device for a yarn guiding reed that is capable of performing a pinging motion to expand the range of action of the yarn guiding reed, thereby making it possible to knit a variety of knitting structures.

In order to solve the above-mentioned problems in a warp knitting machine equipped with a summing mechanism, the present invention provides a fulcrum shaft of a shot grabber that converts and transmits the amount of displacement caused by the summing mechanism into the amount of underwrapping of the yarn guiding reed. An operating arm that is rotatable about an axis parallel to this is connected, and the operating arm rotates in synchronization with the main shaft of the knitting machine, and the operating arm rotates in synchronization with the main shaft of the knitting machine, and the operating arm A cam is provided which acts to apply an overlapping displacement to one or two knitting needles via the summing mechanism, and the cam is configured to perform an underlapping displacement by the summing mechanism and an overlapping displacement by the cam. This is a characteristic feature.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1, 1 is a summing mechanism,
It mainly consists of a piece summing type summing mechanism shown enlarged in FIG. 2, and transmission rods 2 and 3 that protrude toward the shot lever side to be described later and are slidably provided in the left-right direction (arrow direction) in the drawing are connected to a selection device, e.g. They are alternately displaced according to the amount of displacement by the multiple gauge pieces 4a, 4b selected by the jacquard head.

5 is a cam member, one end of which is rotatably supported by a fulcrum pin 9 provided on a holder 8 fixed to the summing mechanism 1 side of the shot lever 7; The tips of rods 2 and 3 are in contact with each other.

A connecting rod 10 has one end connected to a cam lever 13 for a cam 11 fitted on a camshaft 12, and the other end connected to the cam member 5. The camshaft 12 rotates in synchronization with a main drive shaft (not shown) of the knitting machine.

Reference numerals 14 and 15 indicate tension springs, one end of which is engaged with the shot lever 7, and the other end of which is engaged with the transmission lever 2,
Cam rollers 16 and 17, which are rotatably supported by the ends of the transmission rods 2 and 3, are in pressure contact with the cam surface 6 due to their elastic tensile force.

Reference numeral 18 is a fulcrum shaft of the short lever 7, which swingably supports the short lever 7 which converts the amount of displacement by the summing mechanism 1 into the amount of underwrapping of the yarn guiding reed and transmits the same. Reference numeral 19 denotes an actuating arm, which is fitted onto and connected to an eccentric shaft 18e having an axis parallel to the fulcrum shaft 18.By rotating the actuating arm 19 by a required angle in the vertical direction, The fulcrum shaft 18 is provided so as to be slightly displaced in the left-right direction using the fulcrum pin 9 of the displacement transmitting portion from the summing mechanism 1 as a fulcrum. A drive rod 20 is connected to the operating arm 19 through a long hole 21 at its tip, and the drive rod 20 is moved up and down by a cam 22 that rotates in synchronization with the main drive shaft (not shown) of the knitting machine. It is set in. Accordingly, the cam 22 acts on the fulcrum shaft 18 of the shot lever 7 via the operating arm 19, and as a result, the fulcrum shaft 18 of the shot lever 7 is displaced in synchronization with the drive main shaft.

In particular, the cam 22 adjusts the timing of the cam surface so that the fulcrum shaft 18 of the shot lever 7 is displaced between the end of swing-in and the start of swing-out of the yarn guide reed, which will be described later.

Reference numeral 23 designates a transmission rod, one end of which is connected to the yarn guiding reed 24 and the other end connected to the yarn guiding reed 24, so that the amount of swinging displacement of the short lever 7 is transmitted to the yarn guiding reed 24. Yarn guiding needles 26 are arranged in the yarn guiding reed 24 in correspondence with the knitting needles 25.

Next, the operational state of the above embodiment device will be explained. Multiple gauge piece 4a of summing mechanism 1
and 4b transmit a motion corresponding to the amount of displacement for underwrapping of the thread guiding reed 24 to the transmission rods 2 and 3, and the cam member 5 moves in the direction of the arrow.
Along with this, the short lever 7 is oscillated and the yarn guiding reed 24 is moved, the knitting needle 25 is lowered to perform a knockover to remove the old loop from the knitting needle 25, and then ascends to transfer the new loop to the knitting needle 25. The movement is completed by reaching the clearing position for dropping into the lower part of the latch. Then, the yarn guiding needle 26 is connected to the knitting needle 2.
In other words, the yarn guide needle 26 overlaps the knitting needle 25 between the end of the swing-in, in which it moves toward the hook side by passing between the needles 5 and the beginning of the swing-out, moving away from the hook side. When the timing of the cam 22 is adjusted so as to displace the fulcrum shaft 18 of the cam 22, the actuating arm 19 is rotated by the required angle in the vertical direction by the drive rod 20, which moves up and down due to the displacement of the cam 22.
As a result, the fulcrum shaft 18 of the short lever 7 is displaced, and the short lever 7 is given a displacement equivalent to one gauge of the knitting needle 25 in the left or right direction about the fulcrum pin 9, and the yarn guiding reed 24 is knitting needle 25
An overlapping displacement will be performed on the

Therefore, with the device of this embodiment, it is possible to control the drive of the reed by the summing mechanism.

In particular, when overlapping over two gauges is desired, the position of connection between the actuating arm 18 and the drive rod 20 is adjusted using the elongated hole 21, and the rotation angle of the actuating arm 19 by the cam 22 is changed to change the displacement of the fulcrum shaft 18. This can be done by adjusting the amount.

To explain in parallel with the organizational structure shown in Figure 3 above,
Figure A shows the underlap structure ^2-2 / _0-0 ^2-2 / _0-0 ... created by the summing mechanism 1, but according to the drive control device of the present invention, the cam member 5 and the underlap structure are formed by the summing mechanism 1. When the movement of the transmission rod 23 is converted and transmitted through the shot lever 7 and the yarn guiding reed 24 performs an underlap movement, at the turning point, the fulcrum shaft 18 of the shot lever 7 is moved by the cam 22 via the actuating arm 18 to the above-mentioned point. As a result, the thread guiding reed 24 is displaced one gauge to the left or right with respect to the knitting needles 25, so that the thread guiding reed 24 becomes ^2-4 / _2-0 ^2-4 as shown in B in FIG. /
_{A 2-0} formation is possible. In particular, this knitting structure can be achieved by alternately reversing the direction of rotation of the cam 22 at required angles using a half-turn clutch or the like.

Furthermore, if the rotation of the cam 22 is controlled by a clutch mechanism or other mechanical or electrical means such that the rotation is stopped or the direction of rotation is changed at an arbitrary knitting course, the knitting shown in FIG. 4B is also possible. .

That is, each of FIGS. 4A and 4B shows knitting using only the normal summing mechanism 1 and knitting reed 24 using displacement by the device of the present invention, and shows C ₁ , C ₁₆ , C ₁₇ , C ₂₀ , C ₂₁ , C ₂₄ , and C ₂₅ formation courses are extracted and shown.

This knitting structure is usually applied to a handle reed and is used when forming a floating pattern. In the case of _the device of the present invention shown in _FIG . By acting on the fulcrum shaft 18 via the arm 18, overlapping is carried out in each course.

Next, in the C ₁₇ to C ₂₀ courses, the rotation of the cam 22 is stopped to separate the pattern yarn from the ground fabric, and the cam 22 is partially rotated as in the C ₂₁ and C ₂₅ courses, so that the yarn is threaded through the operating arm 18. By acting on the fulcrum shaft 18, it is possible to overwrap and partially entangle with the ground structure.

The above description of the embodiment shows the overwrapping of the closed eye, but in the overwrapping of the open eye, the direction of rotation of the cam 22 is controlled so that the direction of displacement of the shot lever 7 by the actuating arm 18 is opposite to the above. This can be done by setting it so that

As described above, the present invention converts the displacement amount by the summing mechanism into the underlap amount of the yarn guide reed in a warp knitting machine that sets the total amount of displacement using the summing mechanism and converts it into the underlap amount of the yarn guide reed. A cam is provided that can selectively displace the shot lever that transmits the transmission in synchronization with the rotation of the drive main shaft, and this cam moves the yarn guiding reed between the end of swing-in and the beginning of swing-out of the yarn guiding reed. Since it is provided so that it overlaps one or two knitting needles, it is now possible to perform an overlapping motion of the yarn guiding reed, which could not be achieved with a conventional summing mechanism, and as a result, it is possible to drive the yarn reed. In other words, it can be a completely chainless warp knitting machine, and labor saving and rationalization can be achieved. Moreover, it is possible to apply an overlapping motion as a handle reed, and it is also possible to knit a floating pattern, and it has revolutionary effects such as making it possible to knit a variety of knitting structures in a summing mechanism.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG.
The figure is a side view showing an example of a piece summing mechanism, FIGS. 3A and 3B are wrapping diagrams of a guiding yarn reed showing knitting states by a conventional device equipped with a summing mechanism and the device of the present invention, and FIGS. B is a wrapping diagram of the guiding thread reed showing a different knitting state of the same structure as above. 1... Summing mechanism, 7... Shot lever, 18
...Fully shaft, 18e... Eccentric shaft, 19... Actuation arm,
22... cam, 23... transmission rod, 24... thread guiding reed,
25...knitting needles.

Claims (1)

[Claims] 1 In a warp knitting machine that uses a summing mechanism to set the total amount of displacement and convert it into the amount of underlap of the yarn reed, the fulcrum shaft of the shot lever that converts the amount of displacement caused by the summing mechanism into the amount of underlap of the yarn reed and transmits it. In addition to connecting an operating arm that can rotate around an axis parallel to this, the arm rotates in synchronization with the main shaft of the knitting machine and is operated between the end of swing-in and the beginning of swing-out of the yarn guiding reed. A cam is provided that acts to apply an overlapping displacement to one or two knitting needles via the operating arm, and is configured to perform underwrapping displacement by the summing mechanism and overlapping displacement by the cam. A drive control device for a yarn guiding reed in a warp knitting machine.