JPS5949352B2 - Knitting machine pattern knitting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention reads pattern information carried on a recording medium such as a card, loads it into a solid-state storage device such as a random access memory or a shift register, and stores the pattern information in the solid-state storage device in synchronization with the movement of a carriage. The present invention relates to a pattern knitting device for a knitting machine that reads out pattern information, switches the butt passage of knitting needles in accordance with the pattern information, and thereby performs pattern knitting.

In conventional pattern knitting devices of this type, one color (
For example, pattern information drawn in black (black) is read by one reading element and stored in a storage device, and the needle selection device is operated with the monochromatic pattern information, so the knitting pattern is one color and has little variation.

The present invention draws a pattern on a pattern card in two colors, reads the pattern with two reading elements that read different colors, and
The purpose is to provide three batt passages for knitting needles and switch these batt passages according to pattern information of two colors to obtain a richly varied pattern by simultaneously knitting three colors.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a front view of the pattern information reading section.

In FIG. 1, 1 is a card which is a pattern recording medium.

The card 1 has feed holes 1a formed on both edges, grid dividing lines are placed between the holes on both edges, and patterns of two colors CR1 and CR2 (for example, red and green) are formed on the grid. 1
b is drawn.

The card 1 is transported one scale at a time by a card feeding device 3.

5 is a scanning device, and an electromagnetic device 5a for linear drive.
Equipped with

The scanning device 5 is equipped with a photoelectric detection device 6, and the photoelectric detection device 6 includes a photosensor 6 that detects two colors.
A, 6B, each photosensor 6 A j 6 B,
For example, a combination of a diode that emits red light and a phototransistor that detects only red light through a filter,
It is composed of a combination of a diode that emits green light and a phototransistor that detects only green light through a filter, each of which reads the pattern of each color cR1°CR2 on the card 1.

The scanning device 5 is equipped with a photosensor 7 for obtaining a read synchronization pulse and a sampling pulse generator 9 for converting its detection output into pulses. Adjustable and fixed with screws.

A slit opening 8a corresponding to the grid on the card 1 is formed in the slit plate 8.

101 and 1Or are limit switches, and the scanning device 5
are closed when the rightmost and leftmost edges are reached, and the scanning device 5 outputs a signal indicating that the edge has been reached.

The card feeding device 3 is a conventionally known feeding device such as a latch device or an electromagnetic device, and is driven by one pitch by a signal obtained when the carriage 4 passes a predetermined position on the needle bed, which will be described later. Card 1 is grid 1
Only the scale is moved.

As shown in FIG. 2, a timing pulse generator 11 is installed on the carriage 4. The timing pulse generator 11 is composed of a light emitting element and a light receiving element. generates pulses synchronized with the slit interval.

As shown in FIG. 3, slits 2b are formed in the upright wall 2a at the same pitch as the grooves in which the knitting needles N are arranged.

Therefore, the timing pulse generator 11 generates one pulse every time the carriage 4 moves one pitch of the knitting needles N.

The needle selection mechanism of the carriage 4 is shown in FIG.

Reference numeral 12 denotes a detection means for determining the traveling direction of the carriage 4, which is movable within a certain range relative to the carriage 4 and receives force from the needle bed 2 (Fig. 2) to prevent movement by a magnet or the like. and a permanent magnet type trailing means 12a that always moves behind the carriage 4, and a permanent magnet type trailing means 12a that moves together with the carriage 4 and approaches the trailing means 12a when the carriage 4 reverses its traveling direction and is biased by its magnetic force to generate a reversal detection signal. and a sensing means 12b that outputs.

Next, the knitting needle sorting devices Sl and Sr provided on the left and right sides of the carriage 4 in order to sort the knitting needles N back and forth will be explained.

Sl and Sr have a bilaterally symmetrical relationship and have substantially the same structure.

FIG. 5 shows a plan view of the carriage 4 of the knitting needle sorting device Sr section.

The knitting needle sorting device Sr section will be explained with reference to FIG.
The ends of are joined.

Therefore, different magnetic poles are induced in the magnetic bodies 15 and 16.

A cross section of the magnetic body 16 is shown in FIG. 2, and a partially enlarged view is shown in FIG.

14r is also an electromagnet, and is provided on the carriage 4, and one ends of magnetic bodies 16 and 17 are vertically joined to its magnetic pole.

Different magnetic poles are induced in the magnetic bodies 16 and 17 by the excitation of the electromagnet 14r.

The magnetic body 16 has a leg that projects downwardly into the butt passage of the knitting needle N, and has a V-shaped groove 16b (FIG. 6) at the tip of the leg.

This V-shaped groove 16b pushes the butt top part NB of the knitting needle a little lower than the normal upper position against the force of the spring that supports the knitting needle from below and lowers it.

The magnetic bodies 15.17 face each other across the V-shaped groove 16b,
They are installed so that the distance between them is approximately the width of the bat.

Note that the electromagnet 13r. Reference numeral 14r is used to excite the magnetic bodies 15 and 17 only during the carriage movement for an interval t shown in FIG.

When the electromagnet 13r is energized, the knitting needle N is attracted to the magnetic body 15 and moves along the first path 0-A shown in FIG. You can proceed to

When the electromagnet 14r is excited, the knitting needle N is moved by the magnetic body 1
7 and proceed through the third passage o-c shown in Fig. 4,
It comes off the V-shaped groove i6b and moves forward while rising.

When neither of the magnets 13r and 14r is excited, the knitting needle N is guided by the V-shaped groove 16b and introduced into the second passage 0-B shown in FIG.
, 14r, the knitting needles N are selectively introduced into any of the first passage 0-A, the second passage o-B, and the third passage O-C, and three colors (for example, white background, red, and green) are introduced. The needle can be moved to the needle selection position.

The carriage 4 is thus capable of simultaneously knitting three colors.

Behind the section t (FIG. 4) of the carriage 4 is a sensor 18r that changes state by sensing magnetism or light.

181 is placed on the needle bed 2, and pattern end indicating members 19r and 191 (Fig. 5) are placed on the needle bed 2 to move the pattern edge indicating members 19r and 191 (Fig. 5) to the rear of the end of the knitting needle section in which the pattern is to be inserted among the knitting needles being knitted. Arranged in such a way that (/do).

These indicating members are magnets or light emitting elements.

As a result, the carriage 4 moves to the pattern edge indicating member 19r.

Every time the light passes over 191, the sensors 18r and 181 output a pulse representing the passing.

The wiring of the carriage 4 is gathered on a printed board 20 and connected to the needle bed 2 through lead wires.

The needle bed 2 is equipped with various signal processing circuits, a memory readout control circuit, and a solid-state storage device.

FIG. 7 shows the above-mentioned elements on the carriage 4 and needle bed 2 and their mutual relationships, and FIG. 8 shows the input/output timing of each part.

The operation of the embodiment described above will be described below with reference to FIGS. 7 and 8.

When the carriage 4 moves from left to right, the carriage 4 enters the pattern knitting area □ by the direction detection signal from the carriage running direction detection means 12 and the signal indicating that the carriage position detection circuit J has reached a predetermined position. The card feeding device 3 is energized and the card 1 is advanced one step before the card 1 is moved, and then the scanning device 5 is energized and the photoelectric detection device 6 is driven to the right together with the scanning device 5.

During this rightward movement, the read signals (1 or 0) 6AS, 6BT of the first and second read elements 6At 6B and the output pulse 9S of the pulse generator 9 are applied to the memory read control circuit F.

At this time, the storage addressing circuit G selects the first reading element 6.
The output 6AS of A is designated as an even numbered address, and the output 6BS of the second reading element 6B is designated as an odd numbered address.

In this way, one line of two-color patterns on the card 1 is stored in the storage device MEM.

Since each detection output 5AS and 6BS is sampled with a pulse 9S, the storage device MEM stores M as shown in FIG.
Memory is carried out in the form of EM-8.

When reading and storing the two-color pattern information for one line is finished, the storage device MEM stores information indicated by MEM-F for the final address codeless-F.

The scanning device 5 moves to the rightmost end and the limit switch 10r
is energized, and the scanning device 5 is stopped by a signal from the limit switch 10r.

As the carriage 4 continues to move, the pattern tone indicating member 19
1 is detected by the sensor 181, the effective needle selection range indication signal forming circuit H generates an output H8, which causes the effective timing pulse forming circuit T to carry out the output pulse 11S of the pulse generator 11 synchronized with the scanning of the knitting needle N. The detection circuit J sequentially reads out even-numbered addresses and odd-numbered addresses every time it receives one pulse, and provides the readout address code to a storage/readout control circuit F.

As a result, the storage information M is stored in the address order from the storage device MEM.
EM-F is read out, and carriage running direction detection means 12
The electromagnets 131 and 14 are moved by the amount control circuit F in which the carriage 4 is moving to the right based on the carriage traveling direction represented by
1 is selectively energized by the pattern signal of the even-numbered address and the pattern signal of the odd-numbered address, respectively, so that the knitting needle N passes 0-A.

0-B or OC is selected and needle selection is performed.

When the pattern tone indicating member 19r is detected by the sensor i8r, this indicates that the carriage 4 has passed through the pattern knitting section, and the output H8 of the effective needle selection range indicating signal forming circuit H changes to a low level, thereby causing the effective timing pulse. Is is exhausted, there is no more reading from the storage device MEM, neither of the electromagnets 131 and 141 is energized, and the knitting needle N is
You will be guided only to passage 0-B.

When carriage 4 reaches the rightmost end of the formation range,
The formation of the first stage is completed.

When the carriage 4 is reversed and moved to the left, when the carriage 4 reaches a predetermined position, the card feeding device 3 is energized to advance the card 1 by one step, and then the scanning device 5 is energized. photoelectric detection device 6 together with scanning device 5
is driven to the left.

During this leftward movement, the pattern information is stored in the storage device MEM in the manner described above, and when the sensor 18r detects the pattern tone indicating member 19r as the carriage 4 continues to move leftward, the pattern information is read out from the storage device MEM. is started, and pattern information is given to the electromagnets 13r and 14r.

As described above, while the carriage 4 moves forward and backward, the card 1 is read in two colors, the pattern information of the two colors is stored,
The readout and selection of the three knitting needle paths are performed in sequence, and the pattern knitting of each row is repeated.

In this way, three-color patterns including the ground color are knitted according to the two-color pattern drawn on the pattern card, and a knitted fabric with a rich variety of colors is obtained.

Note that if one of the three types of signals described above (for example, green) is written as the outline of the knitted fabric, it can be used as a needle selection signal for forming.

Further, in the above-mentioned embodiment, a needle selection mechanism was shown that selects knitting needles and introduces them into each knitting path as a means for realizing a pattern on a knitted fabric. Patterns can also be created on the knitted fabric by changing the knitting yarns.

When doing this, for example, among the three types of signals, (ljl) is used as the ground yarn supply signal, (Otl) is used as the first knitting yarn supply signal, and (1t o) is used as the second knitting yarn supply signal. These signals may be used to selectively energize solenoids and the like to control the entry and exit of the thread.

[Brief explanation of drawings]

1 to 8 are drawings for explaining one embodiment of the present invention, in which FIG. 1 is a front view showing a pattern information reading section, and FIG.
The figure is a side sectional view of the carriage, Figure 3 is an enlarged front view of a part of the needle bed, Figure 4 is a plan view of the carriage with the top cover removed, and Figure 5 is a part of the carriage and the needle. Figure 6 is a plan view showing part of the floor, Figure 6 is an enlarged sectional view of part of the carriage, Figure 7 is a system block diagram showing the mutual relationship of the electric circuit parts, Figure 8 is a diagram showing each part of the electric circuit. 2 is a time chart showing the input/output timing of . 1: Pattern card, 2: Needle bed, 3: Card feeding device, 4:
Carriage, 5: Scanning device, 6: Photoelectric detection device, 7: Photo sensor, 8 Nislit plate, 9° 11: Timing pulse generator, iol, 10r: Limit switch, 12:
Traveling direction detection means, 13 r > 131 t 14
r s 141 "Electromagnet, 15° 16.17: Magnetic material, 18rt181' sensor, 19rt191: Pattern edge indicator, 20 niblint plate.

Claims (1)

[Claims] 1 Read the pattern information from the pattern recording medium and store it in the solid-state storage device, read out the pattern information stored in the solid-state storage device in synchronization with the movement of the carriage, and use the read pattern information to activate the actuating devices such as the thread head and knitting needle sorting device. In a knitting machine that performs pattern knitting by selectively energizing, two pattern information reading elements, each of which detects a different color, detect patterns of two colors on a pattern recording medium that are different from the colors on the front side of the recording medium. A pattern knitting device for a knitting machine, characterized in that the pattern knitting device for a knitting machine is characterized in that the pattern knitting device for a knitting machine is characterized in that the actuating device is selectively energized based on three or more types of pattern information obtained thereby to knit a three-color pattern.