JPH04241151A - Device of controlling density of knitted fabric of circular knitting machine - Google Patents

Abstract

PURPOSE:To obtain a device of controlling density of knitted fabric of circular knitting machine, preventing end breakage caused by improper density of knitted fabric in reoperation. CONSTITUTION:A device of controlling density of knitted fabric is equipped with a device 20 of inputting density of knitted fabric for basic knitting, inputting density of knitted fabric for basic knitting for each course and each feed opening so as to make yarn tension suitable for basic knitting action and a device 19 of memorizing data of density of knitted fabric for basic knitting, memorizing density of knitted fabric for basic knitting. During rotation of circular knitting machine, density of knitted fabric is set to a previously ordered density of knitted fabric corresponding to a pattern of knitted fabric by a device 6 of density of knitted fabric, a density of knitted fabric for basic knitting for each course and each feed opening is inputted by the device of inputting density of knitted fabric for basic knitting so as to give yarn tension suitable for basic knitting action, a density of knitted fabric for basic knitting is memorized by the device of memorizing data of density of knitted fabric for basic knitting and during basic knitting action, data of density of knitted fabric for basic knitting corresponding to each feed opening of course in which knitting is decided by a setting part of density of knitted fabric and is completed before interruption are taken out from the data memorizing device and the density of knitted fabric is set.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stitch control device for a circular knitting machine.

0002

[Prior Art] Generally, in order to knit a knitted fabric on a circular knitting machine, pattern data and a stitch size (amount of yarn pulled) are required. This is determined by the thickness and other factors, and this becomes the size of the stitch.

FIG. 6 is a block diagram showing a conventional control device for a circular knitting machine.

[0004] A control device for a circular knitting machine has a large number of cylinder needles 1.
It has a circular hook 2 in which cylinder needles 1 are arranged in a row, and a predetermined position of the hook 2 constitutes a needle extractor 3 in which a predetermined number of cylinder needles 1 are not positioned. A plurality of yarn feeding devices 4 are arranged to feed a predetermined yarn among the plurality of yarns.

[0005] Then, the yarn feeder Y of each yarn feeding device 4
1, Y2, Y3, and Y4 have a needle selection device 5 and a measuring device 6.
are arranged, the needle selection device 5 is connected to the needle selection drive device 7, and the needle adjustment device 6 is connected to the needle selection drive device 8.

Furthermore, a cylinder needle detector 9 for detecting the cylinder needle 1 is arranged facing the hook 2, and the cylinder needle detector 5 is connected to a needle address integrating device 10.

The needle address accumulating device 10 is also connected to a pattern data storage device 11, a stitch amount data storage device 12, and a yarn feed switching data storage device 13. And the yarn feed switching data storage device 13 is connected to the reset input device 14.

A pattern data input device 15 is connected to the pattern data storage device 11, and a needle selection drive device 7 is also connected thereto.

Furthermore, a dosage data input device 16 is connected to the dosage data storage device 12, and a dosage driving device 8 is also connected thereto.

Further, a yarn feeding switching data storage device 13 and a yarn feeding switching data input device 17 are connected, and a yarn feeding switching drive device 18 is also connected.
8 is connected to the yarn feeding switching device 4.

Next, control of pattern knitting will be explained with reference to the flowchart shown in FIG.

As an initial setting, pattern data is inputted from the pattern data input device 15, and pattern data PD is written into the pattern data storage device 11.

Then, the stitch amount for each course (one round of the knitting machine) of each yarn feeder Y1, Y2, Y3, Y4 is inputted from the stitch amount data input device 16, and the stitch amount data DD is stored in the stitch amount data storage device 12. write to.

FIG. 9 shows an example of inputting the scale amount.

FIG. 10 shows changes in the scale amount when input as shown in FIG. 9.

Next, two or more yarns are prepared in one yarn feeder, and the yarn feeding switching data ID of the yarn feeding switching device 4, which switches the yarn to be fed so that any yarn can be knitted, is input to the yarn feeding switching device 4. The data is input from the data input device 17 and written into the yarn feeding switching data storage device 13. Then, when the circular knitting machine starts operating, a needle pulse CP is generated every time the cylinder needle 1 passes in front of the cylinder needle detector 9 (S42), and this needle pulse CP is input to the needle address integration device 10. Ru.

Furthermore, the needle address integrating device 10 has a needle pulse C
Every time P is input, the stored needle address data HA is counted up and output to the pattern data storage device 11, stitch amount data storage device 12, and yarn feeding switching data storage device 13 (S43).

Then, when the needle address data HA is input, the pattern data storage device 11 stores the stored pattern data PD.
The data of the needle address indicated by the needle address data HA is extracted from , and outputted as the needle selection data SD1 of the yarn feeder Y1.

Then, the needle address data that is shifted by the mounting position deviation of the needle selection device 5 of the yarn feeder Y1 and the needle selection device 5 of the yarn feeder Y2, that is, the number of needles, is extracted from the needle address indicated by the needle address data HA. It is output as needle selection data SD2 for thread Y2.

Similarly, data corresponding to yarn feeders Y3 and Y4 is extracted and output as needle selection data SD3 and SD4.

Furthermore, the needle selection drive device 7 receives needle selection data SD.
1, SD2, SD3, and SD4 are input, the needle selection signals SS1, SS2, SS3, and SS4 are output to the respective needle selection devices 5 to drive the cylinder needles 1 passing through the needle selection devices 5 (S44).

The position where the stitching device 6 and the yarn feeding switching device 4 can be driven is the position of the needle extractor 3 from which several cylinder needles 1 have been removed.

Therefore, when the needle address data HA is input, the stitch amount data storage device 12 and the yarn feed switching data storage device 13 calculate the position of the needle puller 3 and set the position of each yarn feeder Y1, Y2,
It is checked whether the needle puller 3 has reached the positions Y3 and Y4 (S45, S46, S47, S48).

Then, when the needle puller 3 reaches the position of the yarn feeder Y1, the stitch amount data storage device 12 outputs the stitch amount data CD1 of the yarn feeder Y1 of the next number of courses, and the stitch amount data CD1 is outputted via the stitch driving device 8 as the stitch amount signal DS1. is output to the stitching device 6 of the yarn feeder Y1, and the stitching device 6 is driven (S49).

Further, the yarn feeding switching data storage device 13 outputs the course switching data YC1 for the yarn feeder Y1 of the next number of courses, and transmits the yarn feeding switching signal YS1 to the yarn feeding port Y1 via the yarn feeding switching drive device 18. It is output to the switching device 4 and drives the yarn feeding switching device 4 (S50).

Similarly, when the needle puller 3 reaches the position of the yarn feeder Y2, Y3, Y4, the stitch amount data storage device 12 stores the respective stitch amount data CD1, CD2, CD3, CD4.
is outputted, and the degree signal DS2, DS is outputted via the degree drive device 8.
3, DS4 is output to the stitching device 6 of each yarn feeder, and the stitching device 6 is driven (S52, S55, S58).

The yarn feeding switching data storage device 13 stores respective coarse yarn feeding switching data YC2, YC3, Y.
C4, outputs yarn feeding switching signals YC2, YC3, and YC4 to the yarn feeding switching device 4 of each yarn feeder via the yarn feeding switching drive device 18, and drives the yarn feeding switching device 4 (S53, S
56, S59).

A pattern is knitted by repeating the above operations. (S42 to S60) If the currently knitted pattern is to be changed midway through, or if it is to be knitted again from the beginning, the operation of the knitting machine is stopped and a reset signal RS is input from the reset input device 14.

Then, when the reset signal RS is input to the pattern data storage device 11, the stitch amount data storage device 12, and the yarn feeding switching data storage device 13, the pattern data storage device 1
1. The stitch amount data storage device 12 and the yarn feeding switching data storage device 13 are in the initial state. Then, when changing the pattern, the respective data are further inputted through the pattern data input device 15, the stitch amount data input device 16, and the yarn feed switching data input device 17.

Furthermore, when the operation is restarted, the pattern data PD is not read out from the pattern data storage device 11, but the basic knitting data stored as fixed data is read out, and basic knitting is performed at an arbitrary number of revolutions of the knitting machine.

[0031] The basic knitting is a stable knitting method, such as plain knitting in which all needles are used.

[0032]The course dosage data CD1, CD2, CD3, and CD4 are not outputted from the dosage data storage device 12, and the dosage device 6 retains the dosage amount before being reset. When basic knitting is completed for a given number of revolutions, the data PD is sequentially read out from the pattern data storage device 11 and the needle selection data SD
1, SD2, SD3, and SD4, and the course degree data CD1, CD2, and CD are output from the degree amount data storage device 12.
3, CD4 is output and yarn feeding switching data storage device 1
3 to course yarn feeding switching data YC1, YC2, YC
3, YC4 is output and the process moves to pattern knitting (see the time chart showing needle selection and stitch operations in FIG. 8).

[0033]

[Problems to be Solved by the Invention] Conventional circular knitting machine stitch control devices have a problem with pattern data, stitch data, stitch amount data, and yarn feeding switching data when changing a pattern midway through or knitting again from the beginning. When the knitting machine is reset and restarted, basic knitting will be performed for the desired number of rotations of the knitting machine, but at that time, the stitch size and yarn feed switching will remain as they were when knitting the pattern before the reset. Since the mesh size varies depending on the pattern, such as being very small or large, if basic knitting is performed in this state, the mesh may become too small or too large and the thread may break.

OBJECTS OF THE INVENTION An object of the present invention is to provide a stitch control device for a circular knitting machine that prevents yarn breakage caused by an inappropriate stitch amount when the machine is restarted.

[0035]

[Means for Solving the Problems] The present invention has been made in view of the above-mentioned problems, and the stitch control device for a circular knitting machine according to the present invention provides a knitting machine that adjusts the knitting pattern in advance according to the pattern of the knitted fabric while the circular knitting machine is rotating. A stitch control device that sets and operates the stitch amount (yarn pull amount) to the commanded value, and inputs the basic knitting stitch amount for each course and each yarn feeder so that the yarn tension is suitable for basic knitting operations. an input means for storing the basic knitting weight, and a storage means for storing the basic knitting weight data corresponding to each yarn feeder of the course being knitted before knitting interruption during the basic knitting operation; The invention is characterized by comprising a power setting unit for setting the power by taking out the power from the machine and setting the power.

[0036]

[Operation] In the above-described configuration, the stitch control device of the circular knitting machine of the present invention controls the stitch amount (yarn pull amount) that is commanded in advance by the stitch control device according to the pattern of the knitted fabric while the circular knitting machine is rotating.
inputting the basic knitting weight for each course and each yarn feeder using the input means so as to set and operate the yarn tension suitable for the basic knitting operation, and storing the basic knitting weight using the storage means, During the basic knitting operation, the stitch amount setting section retrieves basic knitting stitch amount data corresponding to each yarn feeder of the course knitted before the interruption of knitting from the storage means and sets the stitch amount.

[0037]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an example of the present invention.

The control device of the circular knitting machine has a large number of cylinder needles 1.
It has a circular hook 2 in which the cylinder needles 1 are arranged, and a predetermined position of the hook 2 constitutes a needle extractor 3 where the cylinder needle 1 is not located.
A plurality of yarn feeding devices 4 for feeding predetermined yarns among a plurality of yarns to the cylinder needle 1 are arranged at the upper part of the hook 2.

[0040] Then, the yarn feeder Y of each yarn feeding device 4
1, Y2, Y3, and Y4, a needle selection device 5 and a needle adjustment device 6 as a power adjustment device are arranged. It is connected to a timing drive device 8 as a setting section.

Furthermore, a cylinder needle detector 9 for detecting the cylinder needle 1 is arranged facing the hook 2, and the cylinder needle detector 9 is connected to a needle address integrating device 10.

The needle address accumulating device 10 also uses a pattern data storage device 11, a stitch amount data storage device 12, a yarn feed switching data storage device 13, and sets the stitch amount for basic knitting after reset as the stitch amount for basic knitting. The pattern data storage device 11, the stitch amount data storage device 12,
The yarn feed switching data storage device 13 and the basic knitting weight data storage device 19 are connected to the reset input device 14.

A pattern data input device 15 and a needle selection drive device 7 are connected to the pattern data storage device 11.

Furthermore, a dosage data input device 16 is connected to the dosage data storage device 12, and a dosage driving device 8 is also connected thereto.

Further, the yarn feeding switching data storage device 13 includes:
A yarn feeding switching data input device 17 is connected, and a yarn feeding switching drive device 18 is also connected, and the yarn feeding switching driving device 18 is connected to the yarn feeding device 4.

The basic knitting weight data storage device 19 includes a basic knitting weight data input device 2 as an input means for inputting the basic knitting weight data MD.
0 is connected, and the scale data storage device 12 and the scale driving device 8 are also connected.

Next, the operation of this embodiment will be explained with reference to the flowchart of FIG.

When resetting to change the pattern, the operator inputs the reset signal RS from the reset input device 14.
(See Figure 5).

Then, the reset signal RS is input to the pattern data storage device 11, the stitch size data storage device 12, the yarn feeding switching data storage device 13, and the basic knitting stitch size data storage device 19, and the initial state is set (S1). ).

Then, the operator inputs new pattern data PD from the pattern data input device 15, writes it into the pattern data storage device 6, determines the pattern color and yarn thickness, and switches the yarn supply to use which yarn to knit. Input the data ID from the yarn feeding switching data input device 17, and inputting the data ID from the yarn feeding switching data storage device 13.
write to.

Further, depending on the input pattern and yarn type, the operator inputs the stitch amount data DD suitable for the knitting from the stitch amount data input device 16 and writes it into the stitch amount data storage device 12.

Then, the operator inputs basic knitting weight data MD suitable for the basic knitting of each course and each yarn feeder from the basic knitting weight data input device 20 according to the type of yarn to be knitted in each course. , is written in the basic knitting weight data storage device 19 (S2).

After that, when the knitting machine is operated (S3), the hook 2
rotates and each time the cylinder needle 1 passes in front of the cylinder needle detector 4, a needle pulse CP is generated (S4) and input to the needle address integration device 5.

Furthermore, the needle address integrating device 10 calculates the needle pulse C.
Every time P is input, the stored needle address data HA is counted up and stored in the pattern data storage device 11, stitch amount data storage device 12, yarn feeding switching data storage device 13, and basic knitting stitch amount data storage. Output to the device 19 (S5).

Then, the pattern data storage device 11 reads out the basic knitting data every time the needle address data HA is input, and sends the needle selection signals SS1, SS2, S via the needle selection drive device 7.
S3 and SS4 are output to the needle selection device 8 of each yarn feeder Y1, Y2, Y3, Y4, and the cylinder needle 1 passing through the needle selection device 8 is driven to perform basic knitting (S7, S9, S11, S13).
. Further, the basic knitting weight data storage device 19 is
When the needle address data HA is input, the position of the needle extractor 3 is calculated and it is checked whether the needle extractor 3 has reached the position of each yarn feeder Y1, Y2, Y3, Y4 (S14, S15, S16, S
17).

When the needle puller 3 reaches the position of the yarn feeder Y1, the basic knitting weight data storage device 19 outputs the basic knitting weight data MD1 of the yarn feeder Y1 of the course that was being knitted before the reset. , outputs the stitch signal DS1 to the stitch device 6 of the yarn feeder Y1 via the stitch drive device 8, drives the stitch device 6, and obtains a stitch amount suitable for basic knitting (S
19).

By the same operation, when the needle puller 3 reaches the positions Y2, Y3, and Y4, the basic knitting density data storage device 19 stores the respective basic knitting density data MD2.
, MD3, and MD4 are output, and the stitch signals DS2, DS3, and DS4 are sent to the yarn feeder's stitch device 6 via the stitch drive device 8 to drive the stitch amount suitable for basic knitting (S21, S23).
, S25).

At this time, no data is output from the stitch amount data storage device 12 and the yarn feeding switching data storage device 13.

The above operations are repeated to perform basic knitting for an arbitrary number of rotations of the knitting machine (S4 to S25). When the basic knitting of the yarn feeder Y1 is completed (S6), the data of the yarn feeder Y1 is read from the pattern data PD in the pattern data storage device 6, the needle selection signal SD1 is output, and the yarn feeder Y1 is knitted with the pattern. Standing (S26), yarn feeders Y2, Y3, Y4 continue basic knitting (S9, S11, S13).

Furthermore, when the needle puller 3 reaches the position of the yarn feeder Y1 (S14), the course stitch amount data CD1 is output from the stitch amount data storage device 12, and the stitch signal DS1 is sent to the yarn feeder via the stitch amount drive device 8. It is output to the stitching device 6 of Y1 and used as the stitching amount for pattern knitting (S30).

Then, the above steps are repeated until the yarn feeder Y2 completes the basic knitting, and the yarn feeders Y2, Y3, and Y4 sequentially complete the basic knitting, and the stitch amount also becomes pattern knitting.

When the basic knitting is completed up to the yarn feeder Y4, the control becomes the same as the conventional knitting (see FIG. 5).

Furthermore, the basic knitting is completed, and the next needle pulse C
When P occurs (S42), the needle address integration device 5 counts up the stored needle address data HA every time the needle pulse CP is input, and stores the data in the pattern data storage device 11 and the stitch amount data storage device 12. , and yarn feeding switching data storage device 13
(S43).

Then, when the needle address data HA is input, the pattern data storage device 11 stores the stored pattern data PD.
, the data of the needle address indicated by the needle address data HA is extracted and outputted as the needle selection data SD1 of the yarn feeder Y1.

Then, the data of the needle address which is shifted by the mounting position deviation of the needle selection device 5 of the yarn feeder Y1 and the needle selection device 5 of the yarn feeder Y2, that is, the number of needles, is extracted from the needle address indicated by the needle address data HA. It is output as needle selection data SD2 for thread Y2.

By the same operation, data corresponding to Y3 and Y4 are extracted and output as needle selection data SD3 and SD4.

Furthermore, the needle selection drive device 7 receives needle selection data SD.
1, SD2, SD3, and SD4 are input, the needle selection signals SS1, SS2, SS3, and SS4 are output to the respective needle selection devices 5, and the cylinder needles 1 passing through the needle selection devices 5 are driven (S44). .

The position where the stitching device 6 and the yarn feeding switching device 4 can be driven is at the needle extractor 3 where several cylinder needles 1 have been removed.

Therefore, the stitch amount data storage device 12 and the yarn feed switching data storage device 13 calculate the position of the needle puller 3 when the needle address data HA is input, and calculate the position of the needle puller 3 for each yarn feeder Y1,
It is checked whether the needle remover 3 has reached the positions Y2, Y3, and Y4 (S45, S46, S47, S48).

When the needle puller 3 reaches the position of the yarn feeder Y1, the stitch amount data storage device 12 outputs the stitch amount data CD1 of the yarn feeder Y1 of the next number of courses, and outputs the stitch amount data CD1 via the stitch driving device 8. The DS1 outputs a stitching signal for the yarn feeder Y1 to drive the stitching device 6 (S49).

The yarn feeding switching data storage device 13 also stores course yarn feeding switching data Y for the yarn feeder Y1 of the next number of courses.
C1, outputs a yarn feeding switching signal YS1 to the yarn feeding switching device 4 of the yarn feeding port Y1 via the yarn feeding switching drive device 18,
The yarn feeding switching device 4 is driven (S50).

Similarly, when the needle puller 3 reaches the position of the yarn feeder Y2, Y3, Y4, the stitch amount data storage device 12 outputs the stitch amount data CD2, CD3, CD4, respectively.
Via the frequency drive device 8, the frequency signals DS2, DS3, DS4
is output to the stitching device 6 of each yarn feeder, and the stitching device 6 is driven (S52, S55, S58).

Furthermore, the yarn feeding switching data storage device 13 stores respective course yarn feeding switching data YC2, YC3, YC.
4, outputs yarn feeding switching signals YS2, YS3, and YS4 to the yarn feeding switching device 4 of each yarn feeder via the yarn feeding switching drive device 18, and drives the yarn feeding switching device 4 (S53, S5
6, S59).

The pattern is knitted by repeating the above operations (S42 to S60).

[0075]

As described above, according to the present invention, since the stitch amount is set at each yarn feeder to a value suitable for the type of yarn currently being knitted during basic knitting after reset, By optimizing the stitch size during basic knitting, it is possible to prevent it from being influenced by the stitch size or pattern before resetting, thereby preventing yarn breakage.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a control device for a circular knitting machine in an embodiment of the present invention.

FIG. 2 is a flow chart diagram showing the operation of the present invention.

FIG. 3 is a flow chart diagram showing the operation of the present invention.

FIG. 4 is a flow chart diagram showing the operation of the present invention.

FIG. 5 is a timing chart diagram showing a needle selection state and a needle setting state in an embodiment of the present invention.

FIG. 6 is a block diagram showing the configuration of a conventional circular knitting machine control device.

FIG. 7 is a flowchart showing the conventional operation.

FIG. 8 is a timing chart diagram showing a conventional needle selection state and a needle adjustment state.

FIG. 9 is a diagram showing an example of inputting power amount data.

[Figure 10] Each course when setting the data in Figure 9,
FIG. 3 is a diagram showing the threading state of each yarn feeder.

[Explanation of symbols]

6. Second device 8th drive device

Claims (1)

[Claims] Claim 1: The circular knitting machine is equipped with a stitch control device that sets and operates the stitch amount (yarn pull amount) to a pre-commanded value according to the pattern of the knitted fabric while the circular knitting machine is rotating, and controls the pattern being knitted. In a circular knitting machine that performs a predetermined basic knitting operation for an arbitrary number of rotations when interrupted, an input means for inputting the basic knitting weight for each course and each yarn feeder so that the yarn tension is suitable for the basic knitting operation. and a storage means for storing the basic knitting weight, and during the basic knitting operation, taking out from the storage means basic knitting weight data corresponding to each yarn feeder of the course being knitted before knitting interruption. A stitch control device for a circular knitting machine, comprising: a stitch amount setting section for setting a stitch amount.