JPS60134052A - Pattern knitting circular 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 Technical Field The present invention relates to a circular knitting machine for pattern knitting, more specifically, a knitting cylinder in which the rotational movement of the cylinder of the circular knitting machine can be freely and easily changed according to the pattern of the knitted fabric. This invention relates to a circular knitting machine for pattern knitting having a drive mechanism.

Prior Art 2 As is well known, a patterned circular knitting machine such as a patterned hosiery knitting machine has a cylindrical knitting cylinder equipped with a plurality of knitting needles.

The knitting apparatus includes a pattern forming mechanism that controls the vertical movement of knitting needles on the knitting cylinder to knit a patterned knitted fabric, and a drive mechanism that drives the knitting cylinder. Conventionally, a bind drum is used as the pattern forming mechanism, and the knitting needles are moved up and down by a combination of the bind drum and a selector jack to knit a pattern knitted fabric. This pattern setting mechanism using a bind drum is mechanically complicated, has a limitation on the number of patterns that can be knitted into nine patterns, and has the disadvantage that it takes a lot of time to change patterns.

In recent years, a combiator has been adopted as a pattern mechanism. When patterning is performed using a patterning mechanism that employs a combiator, there is no limit to the range of patterns that can be selected; that is, the wale direction is limited by the number of wires.

There is an advantage that patterns can be produced without limit in the course direction. Another advantage is that changing the pattern is extremely easy and quick, and does not require advanced techniques.

On the other hand, a mechanical mechanism has conventionally been used as a drive mechanism, which is another mechanism required for pattern knitting in pattern knitting circular knitting machines. This mechanism includes a mechanism that reduces the driving force from the motor to a constant speed, and in particular, in a patterned sock knitting machine, it further includes a mechanism that reverses the rotation direction of the knitting cylinder. In general, when pattern knitting is performed, it is preferable that the rotation speed of the knitting cylinder when knitting the pattern knitted fabric portion is slower than the rotation speed when knitting the base knitted fabric (usually a plain knitted fabric). In addition, in a circular knitting machine that includes a forward/reverse reversal mechanism, it is preferable to perform forward/reverse reversal motion by the rotational angle of the knitting cylinder that knits the patterned knitted fabric portion, since unnecessary rotational movement of the knitting cylinder can be omitted. . However, if a mechanical mechanism is used to change the rotational speed or the rotational angle of the knitting cylinder according to the pattern, the mechanism becomes complicated, resulting in a circular knitting machine that is expensive and difficult to handle.

In addition, even in conventional pattern circular knitting machines that do not have special performance as mentioned above, when changing the pattern, it is necessary to replace, for example, the fan-shaped cam used in the forward/reverse reversal mechanism depending on the pattern. It has the disadvantage that it takes a lot of time to work.

Therefore, even if patterning is performed using a patterning mechanism that employs a computer, if the drive mechanism side uses a conventional mechanical structure that has the above-mentioned drawbacks,
It is difficult for the circular knitting machine as a whole to fully utilize the above-mentioned advantages of having a pattern forming mechanism that employs a combinator.

<Object of the Invention> The present invention overcomes the above-mentioned drawbacks of conventional pattern circular knitting machines and provides a drive for a knitting cylinder that allows the rotational movement of the knitting cylinder to be freely and easily changed according to the pattern of the pattern knitted fabric. An object of the present invention is to provide a pattern circular knitting machine having a mechanism.

<Structure of the Invention> An object of the present invention is to provide a pattern circular knitting machine comprising a knitting cylinder, a pattern output mechanism, and a drive mechanism, the drive mechanism being connected to the knitting cylinder via a mechanical transmission means. and a control device that operates the electric motor by sequentially applying a signal for controlling rotational movement to the electric motor, and the control device includes a storage means for storing the set operation procedure of the knitting cylinder. , a first detection means for detecting the rotation angle of the knitting cylinder, and a second detection means for detecting an abnormality in the operation of the yarn supplied to one knitting cylinder and/or the circular knitting machine;
reading instruction means for instructing the electric motor to rotate the knitting cylinder by comparing the signal from the first detection means with the storage means; and a stop instruction for instructing the electric motor to stop in response to the signal from the second detection means. instruction means, whereby the knitting cylinder performs a predetermined rotational movement;
This is achieved by a patterned circular knitting machine characterized in that a patterned knitted fabric is knitted in cooperation with the operation of the patterned mechanism.

The pattern forming mechanism of the patterned circular knitting machine according to the present invention includes a needle vertical movement means for imparting full vertical movement to a plurality of knitting needles on the knitting cylinder, and a signal for controlling the vertical movement of the knitting needles to the needle vertical movement means. The second control device includes a second control device that operates the needle up and down movement means by applying a voltage, and the second control device includes a second storage device that stores a set up and down movement procedure for a plurality of knitting needles, and a control for the drive mechanism. 72nd reading instruction means for instructing the needle up and down movement means to move the knitting needles up and down by comparing the signal from the first detection means of the device (hereinafter referred to as the first control device) with the second storage means; You can also configure it.

By selecting one rotational speed of the knitting cylinder, two rotational directions and rotational speed of the cylinder resting position as the predetermined rotational movement and storing them in the first storage device as a work procedure, the knitting cylinder can be rotated in both forward and reverse rotational directions. It is possible to knit a patterned knitted fabric while

Most preferably, the main parts of the first control device and/or the second control device are configured by a so-called computer. By using a combinator, processing can be speeded up and diversified, and the equipment can be made lighter and smaller.

Various means can be used as the first storage means and/or the second storage means. For example, magnetic tape,
Various means such as punch cards and mark sheets can be used as necessary.

Note that the work procedure for the knitting cylinder and the set up and down movement procedure for the plurality of knitting needles may be performed in the same storage means.

<Example> The present invention will now be described in detail with reference to the accompanying drawings showing one embodiment of the present invention.

FIG. 1 shows socks manufactured using a patterned circular knitting machine according to the present invention. The sock shown in Figure 1 has a logo section 1.
Leg part 2. It consists of a heel part 39, an instep sole part 4, and a toe part 5), and a diamond-shaped knitted pattern is provided approximately in the center of the leg part 2. Note that the broken lines in FIG. 1 are imaginary lines that indicate the boundaries of each part, and do not indicate the pattern. This diamond-shaped pattern knitting pattern is an exemplary pattern for explaining the operation of the pattern-knitting circular knitting machine according to the present invention, and knitting by the pattern-knitting circular knitting machine according to the present invention is limited to the diamond-shaped pattern knitting pattern. It does not mean that.

FIG. 3 shows a block diagram of the operation of a conventional pattern circular knitting machine. As is well known, the knitting cylinder included in the knitting machine body 10 is connected to the motor 1 through a mechanical transmission adjusting means 16.
Rotationally driven by 5. The mechanical transmission adjustment means 16 includes a speed reduction mechanism, a mechanism for reversing the rotational direction of the knitting cylinder in both forward and reverse directions, and the like. On the other hand, the pattern control device 2
0 includes a pattern storage means 21 and a pattern reading instruction means 22, and the needle up and down movement means 2 receives instructions from the pattern reading instruction means 22.
3 moves a plurality of knitting needles on a knitting cylinder up and down to knit a pattern knitting structure. The pattern control device 20 has conventionally been a mechanical means using a binder drum as the pattern storage means 21, but recently, a combiator using magnetic tape or the like has started to be used as the pattern storage means 21. This made it possible to easily change the pattern.

FIG. 4 is a block diagram showing the operation of an embodiment of a patterned circular knitting machine according to the present invention. This becomes clearer if you compare it with the block diagram in Figure 3.

In the pattern-knitting circular knitting machine according to the invention, the mechanical transmission adjusting means 16 of the conventional pattern-knitting circular knitting machine is replaced by a mechanical transmission means 17 and a first control device 30. The mechanical transmission means 17 is a means for directly or simply proportionally decelerating the rotation of the motor 15 and transmitting it to the knitting cylinder, and is usually a pair of gears connecting the knitting cylinder and the motor 1O.

The first control device 30 includes a first storage means 31. First detection means 3
2. Second detection means 33. First reading instruction means 34. and stop instruction means 35.

The first storage means 31 is a means for storing previously set operating procedures of the knitting cylinders, and stores all the rotational procedures of the knitting cylinders from the start of knitting to the end of knitting of one unit of knitted fabric. In the case of knitting the sock shown in FIG. 1, f'L is knitted in all steps from the mouth rubber part l to the toe part 5 through the knitting of the part 2b in which the diamond pattern of the leg part 2 is formed. The cylinder rotation procedure is recorded.

Although it is convenient to use a magnetic tape as the first storage means 31, other devices capable of recording information may be used such as a floppy disk or a punch card.

A mark sheet etc. can be used.

The first detection means 32Fi is a means connected to the knitting cylinder to detect the rotation angle of the knitting cylinder.

If the rotation angle reaches 360 degrees, it means that the knitting cylinder Fi1 has rotated, so the first detection means 32 simultaneously detects the number of rotations of the knitting cylinder. Further, if a negative rotation angle is detected, it means that the knitting cylinder has rotated in the opposite direction, so the first detection means 32 also detects the rotation direction of the knitting cylinder. As the first detection means, a pulse generator that is normally linked to the rotation of the knitting cylinder is used.

The second detection means 33σ9 is connected to each main part of the knitting machine and detects abnormalities in the yarn supplied to the knitting cylinder and/or the operation of the circular knitting machine. ,
Detects abnormalities in motors and control devices. Various sensors are used as the second detection means.

The first reading instruction means 34tfi compares the signal from the first detection means 32 with the first storage means 31.

That is, the knitting cylinder stored in the first storage means 31 corresponding to the rotation angle of the knitting cylinder detected by the first detection means 32 reads the procedure to be initiated in the next step and issues a signal to the motor 10. This is means for instructing the rotation of the knitting cylinder. As the first reading instruction means 34, a so-called computer is usually used.

Stop instruction means 35 Normally, when a signal is received from a plurality of second detection means 33 provided on a circular knitting machine and an abnormality occurs in any one of the operating parts of the yarn and/or circular knitting machine, the motor is stopped. This is a means of sending a signal to stop the motor.

Note that the circular knitting machine is provided with a device for manually rotating a knitting cylinder (not shown in FIG. 4). Since this device is well known, detailed explanation will be omitted.

In the embodiment shown in FIG. 4, the pattern setting control device 20 of the pattern forming mechanism in the conventionally known circular knitting machine shown in FIG.
It is shown as controller 20'.

Their configurations are substantially the same, and a pin drum or the like may be used as the second storage means 21', or a storage means in which the reading process is performed using a combi-seater such as a magnetic tape may be used. . In either case, the signal from the first detection device 32 of the first control device 30 is input to the second reading instruction means 22', causing the needle up and down movement means 23 to fail (ζV).

Note that if a magnetic tape or the like is used for the first storage means 31 as in the embodiment shown in FIG. 4, a magnetic tape or the like is also used for the second storage means 21'.

In addition, the first storage means 31 and the second storage means 21' are combined into a single magnetic tape device, etc., which performs all procedures related to one knitting, that is, one unit of knitted fabric 2, for example, the start of knitting for one pair of socks. The entire procedure, such as the rotation of the knitting cylinder from knitting to the end of knitting and the vertical movement of the needle corresponding to the rotation of the fa-forming cylinder, can be stored in the magnetic tape device or the like. Furthermore, if necessary, two or more magnetic tape devices may be used so that only necessary information can be changed. In this case, the first reading instruction means 34 and the second reading instruction means 22' are also one, and the information read in sequence by the built-in reading means is processed by the built-in arithmetic processing device and sent to each of the motors 15. and is transmitted to the needle vertical movement means 23.

Next, the knitting operation of the pattern knitting section of the pattern knitting circular knitting machine according to the present invention will be described in detail below with reference to FIG. 2, taking the sock having the diamond pattern shown in FIG. 1 as an example.

The circular sock knitting machine used has a knitting cylinder with a cylinder diameter of 3.5 inches and has 96 needle grooves, and has A, B,
It has four yarn feeders C and D.

To knit the socks shown in Figure 1, the outer thread (dark blue) is made of a mixed yarn of 50% acrylic and 50% wool ('/36), and 40d spantex is wrapped with 70% nylon for the A and 6th openings. The back yarn (plain color) consisting of the core yarn and the back yarn (plain color) are fed in parallel, and on the other hand.

A 110'/2 nylon textured thread (red color) as a pattern thread is supplied to the 8th and 9th ports, respectively.

FIG. 2 shows a developed part 2b of the leg portion 2 of the sock shown in FIG. 1. Therefore, in FIG. 2, the number of wales is 96, which is the same as the number of needle grooves, and since two squares are arranged horizontally, the number of courses is 96/2=4F+. The other parts of the sock except for part 2b in Figure 1 are A.
For example, in part 2a, which is knitted with the front yarn and back yarn supplied from the opening and the 6th opening, the front yarn and the back yarn supplied from the A opening are knitted with the front yarn and the back yarn supplied from the 8th opening.
Organized by the sea! It will happen. On the other hand, in the section 2b, the knitting cylinder knits a diamond pattern while rotating in both forward and reverse directions, as will be explained in detail later, and the section indicated by 7a in Fig. 2 is knitted with the front thread and back thread from the A opening. Similarly, the part indicated by 7b is knitted using the front and back yarns from the six openings. On the other hand, the inside of the diamond-shaped part shown by 8a is knitted with the pattern yarn from the 8th opening, and the inside of the diamond-shaped part shown by 8b is knitted by the patterned yarn from the D opening.

As a result, in the part 2b, a diamond-shaped pattern of 8a and 8b in dark blue is created surrounded by the parts 7a and 7b in dark blue.

In FIG. 2, the boundary lines between the rhombic portions 8a and 8b and the surrounding portions 7a or U7b are shown in the form of steps, with each step representing one stitch. Note that this stepped stitch is a tuck line. In other words, in Figure 2, at point 9a, only the dark blue surface yarn is knitted, but at point 9b, one stitch of pattern yarn is knitted, and at point 9c, three stitches are knitted with pattern yarn. Ru. At the point 9d, 25 stitches are knitted with the pattern yarn, and at the point 9e, 47 stitches are knitted with the pattern yarn. This method of knitting pattern yarn itself is well known and is not new.

Conventionally, this has been achieved by reciprocating the knitting cylinder in forward and reverse directions.

However, in a patterned circular knitting machine having a conventionally known mechanical drive mechanism, the means for providing forward and reverse reciprocating rotation is performed by a mechanical means such as a fan-shaped cam built into the drive mechanism, so that once the forward and reverse reciprocating rotation is performed, When a corner is set, the forward and reverse reciprocating rotation of the pattern circular knitting machine will always be kept constant. In other words, in Figure 2, when knitting each point 9b, 9c, 9d, or 9e, it always rotates by the same rotation angle, and this is necessary to perform pattern knitting at a certain point 1, for example, point 9d. This means that the rotation angle exceeds the specified rotation angle, which is a wasteful operation.

In the pattern circular knitting machine according to the present invention, the knitting cylinder can be rotated based on the operating procedure of the knitting cylinder stored in the first storage means, as will be explained in detail later based on FIGS. 5A to 5D. It is configured so that you can
If the first storage means is stored so as to change the rotation angle of the rotary cylinder for each course of knitting, the rotation state of the knitting cylinder can be freely changed for each course according to the shape of the pattern. The situation will be explained below with reference to FIG. 2 again.

(a) Rotation angle of the knitting cylinder at point 9b Rotation angle for knitting the face yarns for knitting 7 & or 7b supplied from the OA port and 0 port as shown in Figure 2 (hereinafter referred to as the rotation angle for the face threads) (hereinafter referred to as the rotation angle for pattern yarn) ◎The above two types of medium thickness Since it is necessary to rotate the knitting cylinder by the rotation angle of each direction, the actual rotation angle (hereinafter referred to as the required rotation angle) is:

becomes.

In addition, when continuing knitting by reversing the rotation of the 9-knitting cylinder, select one needle and create a stitch with the stitch cam, and in order to press that stitch with sinker 1, the knitting cylinder overruns the predetermined stitch. It is necessary to do so. α in the above formula is the rotation angle required for overrun.

This is an essential operating requirement for circular knitting machines that rotate forward and backward.

Note that α is usually selected between 90° and 180″.

(b) Rotation angle of the knitting cylinder at point 9e 0 Rotation angle for face thread 0 Rotation angle for pattern thread ◎ Required rotation angle (c) Rotation angle of knitting cylinder at point 9d 0 Rotation angle for face thread 0 For pattern thread Rotation angle ◎ Required rotation angle) Rotation angle of the knitting cylinder at point 9e 0 Rotation angle for face yarn 0 Rotation angle for pattern yarn ◎ Required rotation angle In the pattern knitting circular knitting machine according to the present invention, it is possible to set the necessary angle at the point 9e and the point 9e to be the largest, and to set the required rotation angle small at the middle of 7.As a result, the pattern knitting circular knitting machine according to the present invention Now, by changing the rotation angle to match the pattern, it is possible to eliminate the unnecessary rotational movements that were previously performed in conventional pattern circular knitting machines, greatly improving the production efficiency of pattern knitting circular knitting machines. can be done.

The above-described features of the circular knitting machine for pattern knitting according to the present invention are effective even when any one of the knitting yarns is cut during knitting. In other words, as is known, when cutting a predetermined thread during knitting, in order to provide a space for cutting the thread, specifically, the thread is cut so that the thread can be hung on a cutting device such as a knife. In order to secure the length, it is necessary to further overrun the one-knit cylinder. For example, in order to perform yarn cutting work in a knitting cylinder that rotates 360 degrees in forward and reverse directions, it is necessary to overrun the cylinder by about 40 degrees and provide a total of 40 degrees of forward and reverse rotation. In this case, in conventional pattern circular knitting machines having mechanical drive mechanisms, forward and reverse reciprocating rotation is provided by mechanical means such as fan-shaped cams, as described above.

Rotation angle 1 once determined, for example 400° in this case
The rotation angle of is kept constant during operation and cannot be changed. Therefore, even during normal forward and reverse reciprocating rotation without thread trimming work, an extra rotation of 40° must always be continued over the entire course, resulting in unnecessary rotation.

In the pattern knitting circular knitting machine according to the present invention, the first storage means 31 is stored so that the knitting cylinder overruns by, for example, 40° only in the rotation procedure of the knitting cylinder corresponding to the point in time when yarn breakage is required. If this is done, when the thread is not being trimmed, the rotation will be reciprocated in the forward and reverse directions at the rotation angle according to the pattern described above, and the above-mentioned wasteful rotation of conventional pattern circular knitting machines can be completely eliminated. . In this respect as well, the rough efficiency of the pattern circular knitting machine according to the present invention is significantly improved.

In addition to the above-mentioned features, the pattern-knitting circular knitting machine according to the present invention has the following additional features.

First, since the rotation angle of the knitting cylinder can be changed freely,
The mounting positions of the cam and the yarn feeder can be selected more freely than in the case of conventional knitting cylinders and knitting cylinders that rotate at a constant rotation angle. This means that it is easier to type the cam, and there is also room for extra yarn feeders, etc.

Furthermore, since there is no mechanical part for reversing, the machine becomes a compact pattern circular knitting machine, which is easy to maintain and inspect, has fewer breakdowns, and can significantly reduce noise during operation.

The storage contents of the first storage means 31 can be changed, for example, by simply replacing the magnetic tape cassette, making it possible to quickly and easily change to a patterned circular knitting machine having a different MA formation procedure. be able to.

Next, the pattern circular knitting according to the present invention in which the first storage means 31 and the second storage means 21' are one storage means in the diagram shown in FIG. The procedure for knitting by machine will be explained based on the flowcharts shown in FIGS. 5A to 5D, FIG. 6, and FIG. 7.

Before starting knitting, first check 2)-' to see if the circular knitting machine is normal. That is, it is checked whether the alarm is ON (step ■). If the alarm is ON, inspect and repair (step ■).

Details of this alarm processing will be described later based on FIG.

Check the readiness status of the circular knitting machine to see if the yarn to be used for knitting is ready (Step ■).

If the preparations have not been completed, make the necessary preparations (step ■).

Next, check to see if the pattern has changed (Step ■). If the pattern has changed, replace the magnetic tape. In this case, the data on the newly inserted magnetic tape is read (step ■), and it is checked whether the pattern is suitable for the knitting machine (step ■).

If there is no pattern change or if the appropriate magnetic tape is placed, turn on the start button (step ■
). Read the pattern rotation routine (step ①), and knit the first block in FIG. 2, that is, the rubber knitted part, using the rubber knitted structure in normal rotation. After each course, check whether the first block is finished (Step ■), and if it is not completed, return to Step ■.

Rubber knitting part 1 of 3o courses by repeating this operation for each course.
organize. The details of the handle rotation routine will be described later with reference to FIG.

When the first block is completed, the second block 2a, that is, the 2a portion of the leg portion 2 is knitted in a plain knitting pattern using normal rotation. First, read the handle rotation routine (step [phase]), 1
While checking whether the 2nd a block has been completed for each course (step 2), 5o courses are formed.

When the 2nd a block is completed, the 2nd b block, that is, the 2b portion with the diamond pattern of the leg portion 2 is knitted by forward and reverse reciprocating rotation. Read the handle rotation routine (step ■)
, while checking whether the Km2b block is completed every 1 course (Step ■).

48 courses are organized according to the procedure detailed in the description of FIG.

When the 2b block is completed, the 20th block, ie, the 2c portion of the leg portion 2, is knitted using the same steps (steps @ and 0) as the knitting of the 2a block, and then 50 courses of plain knitting are performed in the normal rotation.

When the 20th block is completed, the knitting of the leg portion 2 is completed, and then the knitting of the third block, that is, the heel portion 3, is carried out using a plain knitted structure while reciprocating rotation to make the knitting pattern. Rotate the handle, read the chin (step ◎), and knit 48 courses while checking whether the third block has been completed for each course (step ◎).

When the third block is completed, the fourth block is completed, namely, the top and bottom of the foot, 4. The fifth block, that is, the toe portion 5 and the second
Knitting of the discarded thread part, that is, the sixth block, which is not shown in the figure, is carried out in the same way (step @, [phase], [phase], [phase]
, [phase] and [phase]), the knitting is finished (step [phase]), and the -foot socks are completed. In the next step, as shown in (2), the process returns to the original state and knits the next pair of socks.

In addition, in the 4th block, 100 courses were made with a plain knitted structure in forward rotation, in the 5th block, 48 courses were made with a plain knitted structure while adjusting the stitches by reciprocating rotation, and in the 6th block, 12 courses were made with a plain knitted structure in normal rotation. Organize.

Next, the handle rotation routine will be explained based on FIG.

First, check if the pattern is a normal knitting pattern (Step Co., Ltd.)
. If YES, output forward rotation information step [stock]
), and if No, outputs reverse rotation information (step [phase]). When the information is output, check whether one needle has advanced in the forward or reverse direction.Step [stock] or @), YES
If so, pattern information is output (step e). The above step '(is performed for each CL course, and a predetermined formation is performed.

Next, alarm processing will be explained based on FIG.

Inspect and repair the part where the alarm occurred (Step @)
. Check whether the repair results in returning the 1-knit cylinder to the memorized start position (Step @)
. If NO, proceed to ◯ in FIG. 9, and if YES, start again from the current position.

<Effects of the Invention> Since the pattern circular knitting machine according to the present invention is configured as described above, the rotation angle can be freely changed according to the pattern, and the rotation angle can be changed according to necessary processing such as thread cutting. Can be changed. As a result, waste during the rotational movement of the knitting cylinder can be eliminated and production efficiency can be significantly increased.

Other 1: Since there are no mechanical parts for reversing, the pattern knitting circular knitting machine can be made more compact, making maintenance and inspection easier7
z It has the advantage of having fewer breakdowns and being able to significantly reduce noise during operation.

This method has the advantage that it is possible to quickly and easily change to a circular knitting machine having a conventional knitting procedure.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a patterned sock manufactured by the patterned circular knitting machine of the present invention, and FIG. 2 is an enlarged developed view of the patterned part of the patterned sock shown in FIG. 1. Yes, 3rd
The figure is a block diagram showing the operation of a conventionally known pattern-knitting circular knitting machine, the second figure is a proofer diagram showing the operation of a pattern-knitting circular knitting machine according to the present invention, and Figs. 5A to 5D are block diagrams showing the operation of a pattern-knitting circular knitting machine according to the present invention. FIG. 6 is a flowchart for explaining in detail the pattern rotation routine in the flowchart of FIG. 5, and FIG. This figure is a flowchart illustrating in detail the alarm processing in the no-low chart of FIG. 10...knitting machine body, 15...motor. 17... Mechanical transmission means, 20'... Second control device. 21'...Second storage means, 22'...Second reading instruction means. 23... Needle vertical movement means, 3O... First control device. 31...first storage means, 32...first detection means. 33...Second detection means; 4...First reading instruction means. 35...Stop instruction means. Patent Applicant Watanabe Socks Industry Co., Ltd. Patent Application Representative Patent Attorney Akira Aoki Patent Attorney Kazuyuki Nishidate Patent Attorney Akira Yamaguchi Patent Attorney Masaya Nishiyama Figure 4 Figure 5A Figure 5B Figure 5C

Claims (1)

[Claims] 1. A cylindrical knitting cylinder equipped with a plurality of knitting needles;
A pattern-knitting circular knitting machine comprising: a pattern-setting mechanism for knitting a pattern-knitted fabric by controlling the vertical movement of at least one knitting needle on the knitting cylinder; and a drive mechanism for driving the knitting cylinder. In. The drive mechanism includes an electric motor connected to the knitting cylinder via a mechanical transmission means, and a control device that sequentially applies signals to the electric motor to control its rotational movement to operate the electric motor. The control device includes a storage means for storing the preset operating procedures of the knitting cylinders, a first detection means for detecting the rotation angle of the knitting cylinders, and a first detection means for detecting the rotation angle of the knitting cylinders, and a second detection means for detecting the rotation angle of the knitting cylinders and/or the circular knitting machine. a second detection means for detecting an abnormality in operation; a read instruction means for instructing the electric motor to rotate the knitting cylinder by comparing the signal from the first detection means with the storage means; and a stop instruction flat membrane that receives a signal and instructs the electric motor to stop. A pattern knitting circular knitting machine characterized in that the knitting cylinder thereby performs a predetermined rotational movement and knits a pattern knitted fabric in cooperation with the operation of the pattern forming mechanism. 2. The patterned knitted fabric is knitted by selecting a rotational speed of the cylinder (1 rotational speed), a cylinder stationary device (2) rotational direction, and a rotational angle as the predetermined rotational motion, and knitting the patterned knitted fabric while rotating the knitting cylinder in both forward and reverse directions. A patterned circular knitting machine according to claim 1. 3. A cylindrical knitting cylinder equipped with a plurality of knitting needles, a patterning mechanism for knitting a patterned knitted fabric by controlling the vertical movement of at least one knitting needle on the knitting cylinder, and the knitting cylinder. In a circular knitting machine for pattern knitting, the machine includes a driving mechanism for driving the pattern. The drive mechanism includes an electric motor connected to the knitting cylinder via a mechanical transmission means, and a first control device ii that sequentially applies signals to the electric motor to control its rotational movement to operate the electric motor. a first storage means for storing a preset operating procedure of the knitting cylinder by the first control device; and a first detection means for detecting a rotation angle of the knitting cylinder. a second detection means for detecting an abnormality in the operation of the yarn supplied to the knitting cylinder and/or the circular knitting machine; and a second detection means for detecting an abnormality in the operation of the yarn supplied to the knitting cylinder and/or the circular knitting machine, and comparing the signal from the first detection means with the storage means to control the rotation of the knitting cylinder to the motor a first reading instruction means for instructing; and a first reading instruction means for instructing;
and stop instruction means for instructing the electric motor to stop in response to a signal from the detection means. The pattern forming mechanism includes a needle vertical movement means for vertically moving a plurality of knitting needles on the knitting cylinder, and a signal for controlling the vertical movement of the knitting needles by sequentially applying a signal to the needle vertical movement means to control the vertical movement of the knitting needles. and a second control device that is operative. The second control device collates a signal from a second storage means for storing set up and down movement procedures of a plurality of knitting needles, and a first detection means of the first control device with the second storage means. and second reading instruction means for instructing the needle up and down movement means to move the knitting needles up and down. A patterned circular knitting machine characterized in that the knitting cylinder thereby performs a predetermined rotational movement and knits a patterned knitted fabric in cooperation with the operation of the patterning mechanism. 4. As the predetermined rotational movement, a cylinder rotational speed of 2 rotations, a cylinder stationary position, 9 rotational direction, and a rotational angle are selected, and the patterned knitted fabric is knitted while the 9 knitting cylinder rotates in both forward and reverse directions. A patterned circular knitting machine according to claim 3.