JPS58104254A - Yarn supply method of pattern yarn in warp knitting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention relates to a method of feeding pattern yarn in a warp knitting machine.By actively feeding L1 pattern yarn, knitting is performed under constant appropriate tension at all times, resulting in a uniform pattern. The present invention relates to a yarn feeding method for performing aiiFR of lace having different widths, raw pool widths, and textures.

Figure 1 shows the appearance of the Raschel lace machine, which is a regular warp knitting machine, especially for knitting lace salt.FII111
1! lli figure, and in knitting with this knitting machine, the ground yarn (
υ, (1) forms a ground weave, and a plurality of pattern threads (2) are applied to this ground texture for each appropriate course according to the pattern configuration.

(2)... is knitted by knitting, and this feeding yarn (
The pattern is created by the reciprocating insertion in step 2).

It is formed by a ground thread (1) which forms a wale by knitting the 'i-chain-' in the ground structure with one dollar or ^ tangential needle/ic, and another ground thread (1) which is intertwined with the wale in an inserted manner, Furthermore, the pattern thread (2) is knitted into each course at a predetermined width into the wale to form a Raschel lace. In this formation, the pattern thread (2) is a
The number of repetitions of the pattern width for im is wound around the divided beam (3), and these multiple pattern threads (2) H pattern guide (
The yarn is fed to the ground fabric through step 4). When feeding the pattern yarn (2), it is necessary to feed the yarn under constant tension, as in the case of feeding the base yarn (1).

For this reason, when feeding the pattern yarn (2) by winding it around the partial delivery beam (3) in a number corresponding to the knitting width as shown in Fig. 2, both ends are supported by bearings (4) a (4). A brake device f<5) is provided at one end to brake the bleached beam, which is rotated as the pattern yarn is unwound during knitting, and a balancer (f<5) is provided at the other end to balance the rotation.
6) is installed.

However, due to the structure, the pattern yarn is woven into the ground gi weave, so the pattern yarn is unwound from the pattern beam, and tension is applied to the pattern yarn by the braking force applied to the pattern beam, and the pattern yarn is fed to the knitting section. Ru.

However, as the pattern yarn is wound around the pattern beam, its diameter gradually becomes smaller as the pattern yarn is knitted, and as the pattern beam is rotated against the braking force, the unwinding tension increases. Since the braking force is variable, it is necessary to adjust it several times, making it impossible to completely equalize the tension.

The present invention has been made to solve the above-mentioned drawbacks.
The length of the pattern yarn used for each course is determined in advance by the pattern resolution system in accordance with the pattern configuration of one repeat on the ground weave. Thickness.

- Set a coefficient corresponding to the wale width and the number of strokes, calculate it by computer taking this coefficient into account, and use the actually required pattern thread usage Ff11jk for each course in one knitting as pattern information. The information is inputted into the storage device by other appropriate means, and the unwinding speed of the q pattern yarn is kept constant during yarn feeding, so that pattern yarn wrinkles corresponding to the usage amount are actively fed to the knitting section for each course. By constantly feeding the necessary pattern yarn, the tension is made uniform, and by checking the pattern yarn consumption on a computer, pattern yarn rise is detected in advance, and the knitting machine is automatically stopped. Next, the present invention will be explained based on an embodiment. First, as a pattern information creation process, an original drawing is analyzed by the pattern creation system shown in FIG. In the figure, (7) is a pattern analyzer station, (8) is a Rex console station, (9) Ifi disk station, 0Q is an image printer station, iυ is a graphic video station, and each station has a station multiplexer (sMpx) (6). Each station has a built-in central processing unit (OPU) and memory.
Therefore, independent work can be carried out on each stage day. First, the original lace design (B), which is color-coded for each handle, is read by the drum scanner (To) of the Pattern Analyzer Station (7) and then transferred to the Disk Station (3). ), and then download the pattern data from Graphic Video Station (3) as appropriate. Pattern editing is performed by the drawer graphic video station (6). Graphic Video Station (B) Television (ORT) (9) As shown in Figure 4 of Nishiki K, each pattern thread is indicated by a dot (pixel), and each course is divided into a swing stage (A) and a connecting stage CB). and compose the design.

In the figure, for example, the drum) (d work) and the drum) (d
2) It is a perfect course, and the pattern thread (2) is wale (W5
) to the wale (Wl). Here, Fi between 1 workpiece and 1 wheel is displayed by 6 dots, so the insertion point of the straight line is 6X
The amount of yarn is calculated by the number of dots corresponding to the number of wales, and one (1) dot is added at the turning point. Then, in Rextion (8), key in the line conditions that require human power, that is, the type of ground weave, the running carving for each course of the pattern thread, the ag type of the thread, the thickness of the thread, and the number of strokes for the fence and ale width. and OPU
The data for each course is stored on a cassette tape or other means to drive the servo drive device (described later).

The above is a preliminary preparation step for carrying out yarn feeding.Next, the yarn feeding method of one embodiment of the present invention will be explained based on the block diagram of FIG. The microcomputer, (g) is a pulse generator, α is a pulse motor drive device, and the number of pulse generators (to) and pulse motor drive devices is provided corresponding to the number of handle reeds. ).

QD is a proximity switch, and as shown in FIG. 6, the proximity switch (1) is for counting the knitting course, and the proximity switch (1) is for notifying the start of pulse generation. ) is - machine main shaft, @ is cassette tape.

For knitting, the pattern data is input from the cassette CHIB Sakaki into which the pattern data created in the pattern information creation process is input, and is stored in the storage device 1Q, and the current pattern data corresponding to the pattern is transferred to the storage device - computer α. The data of each handle reed in the number is taken in, the necessary calculations are performed inside the computer αη, and the pulse generation signal from the proximity switch is converted into a pulse control signal by the pulse generator). Handle beam (a) Id m 7 As shown in the figure, the drive roller ■ is rotatably provided, and the drive roller (to)
A driven roller (e) is rotatably supported in parallel with the roller, and both rollers are connected by a timing belt through pulleys (e) and (i).

(to) is a pulse motor as an example of the servo drive □ device, and is connected to the drive roller (2) via an appropriate connection means, supported by the arm), - is the spindle), and is supported by the handle. The shafts at both ends of the beam (3) are supported by bearings 6M and 69 provided in the arm 4, and the arm is angled.

(E) is pulled by a spring (8), so that the handle beam (3) is brought into pressure contact with the driving roller () and the driven roller (2).

However, the generated pulse fblI? The n signal drives the pulse motor. The pulse motor @ moves the drive roller 4 to a peripheral length (
By rotating corresponding to πD), the handle beam (3)
As a result, the pattern thread (2) is unwound and woven into the thin part by actively rotating the pattern thread (2), and as a result, the pattern thread (2) is paid out in accordance with the wrapping amount of the pattern guide (4). Renote will always be organized with appropriate tension.

In addition, the warping length of the handle thread of the handle beam (3) is entered into the computer α force in advance, and the number of pulses sent to the pulse motor (b) of the handle beam (3) is accumulated to the warping length. When the corresponding number of pulses is accumulated, a signal is sent to the knitting machine stop circuit, which automatically stops the knitting machine.

Therefore, by adopting the yarn feeding method in this embodiment, there is no need for balance adjustment and control of the brake device, which were conventionally performed with the beam, and therefore work efficiency is greatly improved.Other embodiments It is also possible to set the pattern yarn on a creel stand and feed it.In this case, the pattern yarn fed to the reed has a uniform tension compared to the usual unwinding from a creel stand. As a result, it is possible to manufacture lace of constant quality.

As a feeding means of the present invention, the diameter of the roller and the number of revolutions of the handle beam during warping are stored in a storage device as parameters, and the rotation of the handle beam is calculated by a computer as the winding diameter decreases, and the rotation is opened. A method of feeding the pattern yarn using loop control.Alternatively, the winding diameter of the pattern yarn is checked and fed back to the computer, and the yarn feeding filter is converted to the number of rotations of the pattern beam, thereby performing closed loop control. It goes without saying that a method for feeding yarn is also included in one embodiment of the present invention.

According to this method, the total consumed length of each pattern yarn for the knitting growth of the knitted fabric can be predicted, so the winding yarn length of the pattern beam can be effectively adjusted by calculating backward from the consumed yarn length of each pattern yarn. In addition to economically managing the warping of pattern yarns used, the warping length of each pattern beam can be set according to the amount of yarn used for each pattern yarn against the knitted fabric length. By setting these settings, it has the effect of minimizing defects caused by warp splicing of pattern yarns.As described above, according to the present invention, in the warp knitting machine, the pattern yarns are properly connected to the ground texture according to the pattern configuration. When feeding yarn to the thinning section for knitting each course, the pattern yarn is fed in accordance with the amount of pattern yarn used for each knitting course corresponding to one repeat of the pattern configuration, corresponding to the pattern. converting the amount of used pattern yarn for each knitting course of the pattern yarn into a control signal, and distributing the control signal to a drive device for feeding a pattern yarn amount corresponding to the pattern for each knitting course;
Since the yarn is actively fed in synchronization with the wrapping of the pattern guide, the pattern yarn is fed in synchronization with knitting, so that the pattern yarn corresponding to the pattern guide knitting into the ground structure by the wrapping of the pattern guide is fed in synchronization with the knitting. As the yarn is fed to certain parts with a constant tension, it is possible to manufacture lace fabric with constant quality.In addition, by feeding the pattern yarn less or more than the normal yarn feeding rate, the effect of squeezing or This provides innovative effects such as the ability to obtain pattern effects that correspond to the pattern structure, such as surface effects caused by overlapping threads.

[Brief explanation of drawings]

Figure 1 is a front view showing the appearance of a normal Raschel lace machine, Figure 2 is a perspective view showing the yarn feeding device when feeding the pattern yarn using a conventional pattern beam, and Figure 8 is the pattern beam feeding device. This is a layout diagram of the pattern creation system for creating pattern information for determining the yarn amount. The 1MS diagram is a block diagram showing an embodiment of the yarn feeding method of the present invention, and is a perspective view showing the sixth #Ak'i proximity switch, and the seventh #Ak'i proximity switch.
The figure is a perspective view showing an example of a pattern yarn feeding device. In the figure (2)...Pattern thread 4...Description-device Surface...Microcomputer Threat...-Main shaft

Claims (1)

[Scope of Claims] (1) In the warp knitting machine ψ, when feeding the pattern yarn to the knitting section in order to knit the pattern yarn to the ground structure for each appropriate course according to the pattern configuration, the L1 pattern yarn is In order to supply yarn according to the usage amount of pattern yarn for each column course corresponding to the structure 1 repeat, the yarn usage amount for each weaving course of the pattern yarn corresponding to the pattern is converted into a control signal, and the control is performed. A pattern yarn feed system in a warp knitting machine in which a signal is distributed to a drive device for feeding pattern yarn filters corresponding to the pattern of each knitting course, and the yarn is actively fed in synchronization with the wrapping of the pattern guide. Yarn method. (2) A method for feeding pattern yarn in a warp knitting machine, characterized in that the amount of pattern yarn used is introduced by a pattern analysis system, stored in a storage device, and drawn out from the storage device as appropriate at the time of yarn feeding. 0 (3), A pattern yarn feeding method in a warp knitting machine described in a patent characterized in that the pattern yarn is wound around a pattern beam and fed. 0 (4), The pattern yarn is installed on a tarel stand. A method for feeding pattern yarn in a warp knitting machine as set forth in claim (g) (1) or (418) above, characterized in that the yarn is fed in a warp knitting machine. (5) - The pattern yarn is fed by being brought into contact with a feed-out haze ring whose rotation is controlled for each knitting course. 4) A method for feeding pattern yarn in the warp am described in section 4). (6) - The winding diameter of the pattern yarn, the pattern beam diameter, and the number of rotations of the pattern beam during warping are stored in a storage device as parameters, and the rotation of the pattern beam is calculated by a computer as the winding diameter decreases, and the rotation is adjusted accordingly. A method for feeding pattern yarn in a warp knitting machine according to claims (1) to (3) of the above claims, characterized in that the yarn is fed while being controlled. (7) A method for feeding pattern yarn in a warp knitting machine according to claims (1) to (6) above, wherein the drive device is a servo drive device◎