JPS5947746B2 - Knitting machine needle selection control device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a needle selection control device for a knitting machine.

More specifically, electronically controlled needle selection detects the positions of the knitting needles arranged in a row in the knitting machine in relation to the knitting machine body, reads out the needle selection state corresponding to that position from an electrical storage device, and selects the needles. It is related to the device.

Conventionally, as a method for detecting a position related to a knitting machine main body, a reference position is provided in the knitting machine main body, and the position of a knitting needle is detected using the reference position as a reference.

However, this method has a restriction that the carriage must always pass through the reference position.

In the present invention, the carriage detects the end needles of the knitting needles being knitted, detects the end needle position, and detects the position of the knitting needles based on the end needle position, and the carriage is always at the end needle position. , so there is no need to separately pass through the reference position.

In addition, the present invention focuses on the fact that the end needle always passes once in one row knitting, and detects the entire position of the end needle from the assembled end needle, so that it is possible to prevent integration errors in the row. It is something.

That is, the present invention includes a plurality of knitting needles supported on a needle bed so as to be movable back and forth and up and down, a carriage movably disposed on the needle bed, and a carriage provided on the carriage to move the knitting needles in a downward position. A rolling member that sequentially rolls down and the positions of a plurality of knitting needles are divided into blocks with respect to the needle bed, and the position of an end needle among the knitting needles that is rolled down by the rolling member is detected as a block signal, and the carriage is moved. a block detection circuit that corrects the block signal to a block signal of the newly rolled knitting needle by detecting a change in the block of knitting needles rolled down by the rolling member in relation to the rolling member; A knitting machine characterized by reading out electrical signals corresponding to knitting needles to be selected from among electrical signals that load needle selection information stored in a storage device, and selecting needles according to the contents of the electrical signals. This relates to a needle selection control device.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a needle selection mechanism of a home-use knitting machine, in which reference numeral 1 denotes a needle bed, on which knitting needles 2 are arranged so as to be movable up, down, and back and forth.

The knitting needles 2 are always biased by the leaf springs 3 and are located at the imaginary line position indicated by the symbol A in the figure, that is, in the upward direction, and are in a high butt state.

A butt lowering member 5 is provided on a carriage 4 that moves left and right on the needle bed 1, so that only the knitting needles are lowered to the position indicated by the solid line indicated by the symbol, and the non-knitting needles do not pass through the bunt lowering member 5 and are not rolled down. It has become.

Eight pattern plates G1 to G8 and five search plates 1 to 5, which are unique to the present invention, are attached to the plate support member 7 facing the knitting needles 2.

Switches GS1 to GS8 and KS1 to K for detecting the positions of pattern plates G1 to G8 and search board 1 to 5, respectively.
S5 is provided.

When the knitting needle 2 is pushed down to the opening position, the pattern plates G1 to G8
Any one of these and at least 1 of 5 from 1 to 5 on the search board
Move more than one sheet in the longitudinal direction.

Solenoid 5 attached to solenoid support member 55
QL1~8 are the pattern plates G1~ that moved according to the electrical input.
G8 is held at the position moved by plungers PL1-8 and S rods SB1-8.

Referring to FIG. 2, a diagram of the operating system of the device of the present invention is shown.

When the knitting needles 2 are pushed down by a pushing down member 5 provided on the carriage 4, the pattern plates G1 to G8 are moved to the search board.

As shown in Fig. 3, pattern plates G1 to G8 are knitting needles 2...
Each block of... (one block is a needle number 1~
Protrusion 2 corresponds to the needle number (1 to 8)
0 is provided, and this protrusion 20 is provided with a first cam surface 21.

The pattern plates G1 to G8 are always biased toward the left (arrow a) in FIG. 3 by springs.

When the knitting needle 2 is pressed down, the pattern plate corresponding to the number of the knitting needle is moved to the right in FIG. 3 by the first cam surface 21.

Referring to FIG. 4, small holes GH1 to G8 are provided in the pattern plates G1 to G8, which are held on the plate support plate 7 so as to be horizontally movable by the plate support rod 8, so that the pattern plates can move in the right direction in the figure. 2, the switches GS1 to GS8 are actuated via the levers GL1 to GL8, and the input is input to the controller 1000 as shown in FIG.

On the other hand, protrusions 30 are provided on the search board 1 to 5 corresponding to each block in which the needle numbers (1 to 8) of the knitting needles 2 are one block, as shown in FIG.

The relationship is as shown in Figure 5, and each search board has 1 to 5
, protrusions 30 are provided corresponding to all the knitting needles 2 of the same block according to the block number of each knitting needle 2.

An inclined cam 31 is provided on the projection 30.

When the knitting needle 2 is pressed down and acts on the inclined cam 31, it moves to the left in FIG.

The search board 1 to 5 are provided with small holes KH1 to 5, respectively, as shown in FIG. This is input to the controller 1000 as shown in FIG.

Search plates 1 to 5 are constantly biased to the right in FIGS. 3 and 4 via levers KL1 to 5, respectively, by the spring forces of switches KS1 to KS5.

As shown in FIG. 3, the pattern plates G1 to G8 have positioning rods 51.
The movement is regulated by each elongated hole 52.

Similarly, place the positioning rod 51 and each elongated hole 53 for 1 to 5 on the search board.
Lateral movement is restricted by

Since 1 to 5 and pattern plates G1 to G8 are configured as above on the search board, for example, the fifth knitting needle 2 of block 21
When the switch KS1. is lowered, the switch KS1. K.S.
3. When KS5 is activated, switch GS5 is activated in the relationship shown in FIG.

In the controller 100 "0", its switches KS1-K
The block can be detected by the code signal S5, and the needle number in the block can also be known by the switches GS1 to GS8.

Next, the configuration of the controller 1000 shown in FIG. 2 will be explained.

The switches GS1 to GS8 are connected to the leading detection circuit 100 and the non-rolling detection circuit 600.

The leading detection circuit 100 is connected to a rolling start detection circuit 200, a block movement direction detection circuit 300, and a timing circuit 800.

The non-rolling detection circuit 600 includes a rolling start detection circuit 200, a block movement direction detection circuit 300, and a block detection circuit 400.
and the stage detection circuit 700.

The rolling start detection circuit 200 is connected to the block detection circuit 400, the block movement direction detection circuit 300 is connected to the block detection circuit 400, and the block detection circuit 400 and the step detection circuit 700 are connected to the beam-on memory (hereinafter referred to as "ROMJ") 500. connected to the timing circuit 8, and its output is connected to the timing circuit 8.
00, and this output is further connected to the non-pressure detection circuit 600.
and is connected to the drive circuit 900.

The drive circuit 900 is connected to the solenoids 5QL1 to 5OL8 as outputs of the controller 1000.

As shown in Figure 6, small holes GW1 to G in pattern plates G1 to G8
S rod SB is inserted between W8, the small holes H1 to H8 provided in the plate support member 7, and the small holes of the plungers PL1 to PL8.
1 to SB8 are provided and the pattern plate is in the normal position,
The positional relationship will be that of the S bar SB7, and if the pattern plate has moved to the right side in FIG. 6 from the pressed down knitting needle 2 as described above, the positional relationship will be that of the S bar SB8.

In this relationship, when a solenoid drive signal is generated by the timing circuit 800, it is amplified by the drive circuit 900, and current flows through the solenoid 5OL8, for example.

Plunger PL8 is attracted by solenoid 5OL8, and handle plate G8 is held at this position.

The locking action of the knitting needles 2 in the above case will be explained with reference to FIGS. 7 and 8.

FIGS. 7 and 9 show the protrusion 20 of the handle plate as seen from the direction of the solenoid.

The knitting needles 2 are rolled down by a rolling member 5, as shown in FIG.

The state of the knitting needles in Fig. 9 is shown in Fig. 7, Fig. 8, and b-+l.
, c-+■, a-+l[, e-+IV.

This almost corresponds to f-+V1g→■ and h→■.

At I in FIG. 7, the knitting needle 2 is pressed down by the rolling pressure 5, and finally the first cam surface 21 moves the pattern block to the left in the figure against the biasing force A of the pattern block, as shown in ■. .

The pattern plates G1 to G8 are the springs SP1 to G8 shown in Figure 6.
As a result, the pattern plate is always biased to the left (FIG. 7) via the S rods SB1 to SB8.

In (2), the switch corresponding to the pattern among switches GS1 to GS8 acts.

In step (3), the knitting needles 2 are pushed down to the lowest position.

In this case, the switch remains operative and the solenoid relationship is in the state of plunger PL8 in FIG.

When the pressing member 5 passes as shown in ■, the knitting needles 2 are returned upward by the biasing force A of the pattern plate and the spring 3.
The pattern plate also returns to its original position with the movement of knitting needle 2, and V, V
I.

At (3), the state is completely restored, the switch becomes inactive, and the solenoid relationship returns to the state of the plunger PL7 in FIG. 6.

In this case, the knitting needles 2 are in the state f in FIG. 9, and are sorted into the state h by the first cam 11 of the sorting cam 10.

In Figure 8, 1. (2) operates in the same way as in FIG.

At (3), the timing circuit 8000 operates to apply a current to the solenoid via the drive circuit 900, applying a force in the direction B to the handle plate, and holding the handle plate at the position where the positioning rod 51 and the elongated hole 52 are in contact with each other as shown in Fig. 3. be done.

In this case, even if the pressing members IV and V pass, the knitting needles 2 are prevented from returning upward by the second cam 22,
Locked in the lower position, the switch also remains activated.

When the current stops flowing through the solenoid according to the signal from the timing circuit 800, the biasing force A of the pattern plate and the spring 3 return the knitting needles 2 upward, and the switch becomes inactive, as shown in (1) and (2).

In this case, the knitting needles 2 are in the state g in FIG. 9, and are sorted into the state i by the second cam 12 of the sorting cam 10.

In FIG. 2, the knitting needles 2 are controlled to be locked and unlatched as shown in C, and the needles are selected in this manner by a selection cam 10 provided on the carriage 4.

The controller 1000 will now be described in more detail.

As shown in FIG. 10, the leading detection circuit 100
As shown in FIG. 8, there are cases where the pattern plate is held in the position where switches GS 1 to 8 act, and even when a plurality of switches GSI to 8 act, as shown in FIG. This circuit always detects the signals of the switches GS1 to GS8 corresponding to the number of the knitting needle 2 newly pressed down by the pressing member 5.

When the switches KS1 to KS5 are located below two or more knitting needles 2, the roll-down start detection circuit 200 may overlap two block numbers, and the correct code signal may not be detected. This circuit detects the state in which the knitting needles 2 are pushed down for the first time in the knitting of the row, that is, the rolling down member 5 is in the lower position.

In other words, in that case, the switches KS1 to KS5 are displaying the code of the correct block number of the knitting needle 2.

As shown in FIG. 3, the block moving direction detection circuit 300 detects that when the number of knitting needle 2 changes from number 8 to number 1, the block number increases and the number of knitting needle 2 changes from number 1 to number 8. In this case, the circuit detects a change in the block of the knitting needle 2 newly rolled down by the rolling down member 5, paying attention to the fact that the block number decreases.

When the signal from the rolling start detection circuit 200 is generated, the block detection circuit 400 reads the code numbers of the switches KS1 to KS5 and stores them as the block number of the knitting needle 2 that was rolled first.

When a block number increase signal is generated from the block movement direction detection circuit 300, 1 is added to the stored block number and stored, and when a block number decrease signal is generated from the block movement direction detection circuit 300, the stored block number is By subtracting 1 from the block number and storing it as a new block number, the knitting needle 2 that has been newly rolled by the rolling member 5 is always
This is a circuit that outputs the block number of .

The ROM 500 stores the needle selection state of each block in each number of stages in advance, and corresponds to a conventional punch card.

The ROM 500 receives the outputs of the block detection circuit 400 and the stage detection circuit 700 as address inputs, and generates a pre-stored 8-bit output corresponding to the address inputs.

This 8-bit output corresponds to the number of knitting needles 2 in each block.

That is, the ROM 500 stores the needle selection state of each block in each stage number, and outputs the needle selection state according to the stage number and block input.

The non-rolling circuit 600 detects that none of the switches GSI to GS8 are operating and detects that the rolling member 5 has finished rolling down the knitting needles.

However, if the solenoids 5QL1 to 5QL8 are working, the switches GS1 to GS8 will continue to work, so
In some cases, it may not be possible to detect the end of pressure reduction, so depending on the timing of the timing circuit 800 and the energization signals to solenoids 5QL1-8, any of the solenoids 5OL1 to 5QL8 will act, and the end of pressure reduction may not be detected even if the switch is activated. Corrected for detection.

The stage detection circuit 700 is a circuit that adds one stage based on the one-stage knitting end signal from the non-rolling detection circuit 600, and detects the number of stages at which the needle selection state should be output.

For example, the timing circuit 800 switches the switch GS when the No. 1 knitting needle 2 of the 2nd block is pressed down and enters the state H in FIG.
Even if the solenoid 5OLI is activated, the solenoid 5OLI is not energized immediately.Next, when the second knitting needle 2 of the second block is pressed down and the switch GS2 is activated, the first knitting needle 2 of the second block is switched to the eighth knitting needle.
In the state shown in the figure, the solenoid 5OL1 is energized.

Next, the number 3 knitting needle 2 of the 2nd block is pressed down to the switch GS.
3 acts, the state shown in FIG. 8 is reached, and the solenoid 5OL1 remains energized.

Next, the number 4 knitting needle 2 of the 2nd block is pushed down, and the switch G
When S4 is activated, the state shown in (■) in FIG. 8 occurs, and the solenoid 5OL1 remains energized.

Next, the number 5 knitting needle 2 of the 2nd block is pushed down, and the switch G
As soon as S5 acts, it stops energizing solenoid 5QL1,
No current flows, and the state shown in (■) in FIG. 8 is reached.

In this way, the solenoid 5Q corresponding to each pattern version G1 to G8
The leading detection circuit 100 determines the timing for energizing L1 to L8.
, and the solenoids 5QL1 to 5QL8 are energized according to the output of the ROM 500.

When the signal from the non-pressure detection circuit 600 is generated, the solenoid 5
Turn off power to all QL1 to QL8.

The drive circuit 900 amplifies the output of the timing circuit 800 and supplies it to the solenoids 5QL1-8.

An electrical circuit diagram of the controller 1000 is shown in FIG.

One end of the switches GSI to GS8 of the pattern plates G1 to G8 is connected to the power supply, and the other end is grounded through the resistors 91 to 98, respectively, and is also connected to the input of the leading detection circuit 100 and the non-rolling detection circuit 600. Connected.

The switches GS1 to GS8 are turned on when activated.

On the other hand, one end of the switches KSI to KS5 marked 1 to 5 on the search board is connected to the power supply, and the other end is connected to the resistor 81 to 8, respectively.
5 and grounded through the block detection circuit 40.
Connected to the 0 input.

The switches KS1 to KS5 are turned ON when activated.

The leading detection circuit 100 receives input G as shown in FIG.
SI to GS8 are monostable multivibrators (hereinafter referred to as monostable).

) connected to 101 to 108, and the single mark 10
The outputs GM1 to GM8 of 1 to 108 are the lowering start detection circuit 2.
00 and the inputs of the block movement direction detection circuit 300 and timing circuits 801 to 808.

A high potential is output for a short time only when the input of the single multi-circuits 101 to 108 changes to a high potential.

As shown in FIG. 12, the non-pressure detection circuit 600 has switches GS1 to GS8 connected to AND elements 611 and 618, respectively.
are connected to one person's power, and the outputs of timing circuits 801 to 808, P1 to P8, are connected to inverter elements 601 to 601, respectively.
It is connected to other inputs of AND elements 611-618 via 608.

The outputs of AND elements 611 to 618 are each output to OR element 621.
The output of the OR element 621 becomes the output AR of the non-reduction detection circuit 600 via the inverter element 631.

In the rolling start detection circuit 200, as shown in FIG. , FJ)2
It is connected to the set input of 02.

The output AR of the non-pressure down detection circuit 600 is connected to the reset inputs of F and F202.

F, the θ output of F202 is connected to the input of single ring 203,
The output of the single ring 203 is the output T of the rolling start detection circuit 200.
It is OP.

As shown in FIG. 14, the block movement direction detection circuit 300 outputs GM1 from the single power of the AND element 305, F, F.
304 set input, output GM8 is F, F
The set input of 303 is connected to one input of AND element 306, and the output GM7 is connected to one input of OR element 301.

Output AR is the other input of OR element 301 and OR element 302
The output GM2 is connected to the other input of the OR element 302.

The output of the OR element 301 is connected to the reset inputs of F and F303, and the output of the OR element 302 is connected to the reset inputs of F and F304.

The θ output of F, F303 is connected to another input of AND element 305, and the θ output of F, F304 is connected to another input of AND element 306.

The output of the AND element 305 is the block movement direction detection circuit 3.
00, and the output of the AND element 306 becomes the output R of the block moving direction detection circuit 300.

The block detection circuit 400 is composed of a 5-bit up/down counter element, and the output is connected to the up input.

Output R is connected to the down input, output TOP is connected to the load input, and output AR is connected to the reset input (FIG. 10).

Switches KSI to KS5 are connected to the inputs of each bit,
The outputs B1 to B5 of each bit are outputted from the block detection circuit 400 as a code signal of the block number.

As shown in FIG. 15, the stage detection circuit 700 is connected to the reset input of the up/down counter 703 via an automatic reset type switch 701, grounded via a resistor 704, and connected to the reset input of the up/down counter 703 via an automatic reset type switch 702. It is connected to the down input and grounded via a resistor 705.

The output AR is connected to the up input.

The up/down counter 703 is composed of 7 bits, and its outputs A1 to A7 are the outputs of the stage detection circuit 700.

It is also possible to convert the outputs A1 to A7 into decimal and display them numerically, but this is not directly related to the present invention and will therefore be omitted.

ROM500 has outputs B1 to B5 and outputs A1 to A7.
2 bits are connected to the address input, and its 8 bit outputs R1-R8 are connected to timing circuits 801-808.

Timing circuit 800 includes timing circuits 801 to 808
The timing circuit 801 is composed of eight circuits, and has a substantially similar configuration, so only the timing circuit 801 will be explained.

The timing circuit 801 outputs G as shown in FIG.
M8 and the output GM2 are each connected to the input of the OR element 811, and the output GM1 is connected to the reset inputs of F and F814, as well as to one input of the AND element 812.

The output R1 is also connected to the other input of the AND element 812.

Output GM5 and output AR are each connected to the input of OR element 813, the output of OR element 811 is connected to the set input of F, F814, and the output of AND element 812 is connected to F, F81.
5, and the output of OR element 813 is F,
Connect to the reset input of F815, connect the θ output of F, F814 to one input of AND element 816,
The θ output of is connected to the other input of AND element 816.

The output of the AND element 816 becomes the output P1 of the timing circuit 801 and is connected to the drive circuit 901.

The drive circuit 900 is composed of eight drive circuits 901 to 908, and the circuit configuration is a known current amplification circuit, so a detailed explanation will be omitted.

Each of the outputs P1 to P8 of the timing circuits 801 to 808 is connected as an input to each of the drive circuits 901 to 908,
Each output of drive circuits 901-908 is connected to solenoids 5QL7-8, respectively.

Although not shown, a power supply is provided between the potential (1) and ground, but the power supply relationships of each element are omitted.

The circuit configuration in the above explanation is as follows for ease of explanation:
Although the structure is designed to be easy to understand, a microcomputer is actually used to control a program that performs the same function.

Although this explanation will be omitted, if the drive circuit 900 is removed, it can be configured with one chip, and the burden on cost and space can be reduced.

The present invention relates to a block detection circuit 400,
The binary code signals of the switches KSI to KS5 are read by the signal of the rolling start detection circuit 200, and the read binary code signals are increased or decreased depending on the signal of the block movement direction detection circuit 300 and are stored in the ROM 500. The main point is to input the address of

The present invention having the above configuration operates as follows, and needle selection control of the knitting machine is performed.

Now, a case where knitting is performed from knitting needle 2 of No. 6 of the first block to knitting needle 2 of No. 3 of the second block will be explained.

It is assumed that the ROM 500 stores needle selection states as shown in the following table.

In the first stage, the carriage 4 is moved from the direction of the first block to the direction of the second block.

First, in FIG. 15, the switch 701 is operated to make the A1 to A7 outputs of the stage detection circuit 700 the code signals for the first stage.

The rolling down member 5 of the carriage 4 is passed through one block of 1°2.3, but since the knitting needles are non-knitting needles, they are not rolled down.

Therefore, since the switches GS1 to GS8 remain OFF, AND elements 611 to 618 in FIG.
The OR element also does not hold, and the OR element becomes inactive, and the inverter element 631 performs an inverting action, so it becomes active, and the circuits 200, 300, 400 and the timing circuit 800 are reset.

In FIG. 16, the OR element 813 of each timing circuit 801 to 808 is in an active state when the OR is established, and F, F
815 is reset and its θ output becomes inactive, and AND element 816 becomes inactive because the AND is not established.

Drive circuits 901 to 908 also become inactive, and solenoid 5
QL1-8 are not energized.

The carriage 4 moves further and finally presses down the knitting needle No. 6 of the l block.

In the relationship shown in Figure 3, 1 is moved to the pattern plate G6 and the search board,
Switches GS6 and KSI act.

The non-pressure detection circuit 600 is connected to the switch GS in FIG.
6 is active and the output P6 of the timing circuit 806 remains non-active, so the inverter element 606 is active,
The AND element 616 becomes operative, the OR element 621 becomes operative because the OR is established, and the inverter 631 becomes non-operative.

Therefore, the reset state of the circuits 200, 300, 400, 800 is released.

The leading detection circuit 100 is shown in FIG.
S6 acts, single mark 106 acts, and 0M6 outputs a short-time signal.

The rolling start detection circuit 200 outputs GM6 in FIG.
, the OR element 201 is activated, the OR element 201 is activated, and F and F20, which were in the reset state, are
2, a set input occurs, its θ output changes from non-action to action, and single mark 203 outputs a short-time signal TOP.

In FIG. 14, the block moving direction detection circuit 300
Since the output AR has changed from action to non-action, F, F304
, 305, the reset input changes from action to non-action, but since no set input occurs, both θ outputs remain inactive, and AND is not established with AND elements 305 and 306.
Both output and R have no effect.

In FIG. 10, the block detection circuit 400 has an output TO
A load input is applied by the action of P, and the states of inputs KS1 to KS5 are set to outputs B1 to B5 as they are, and 1.
0.0. O, O means 1 block.

The stage detection device 700 does not count up when the output AR changes from action to non-action, and the outputs A1 to A7, which mean the first stage, are o.
, o, o, o, o, o, o.

In the ROM 500, the address input of the first block of the first stage acts, and according to the table above, the outputs R1 to R8 are 0.1.
It becomes 0.1.0.1.0.1.

In FIG. 16, the timing circuit 802 includes an OR element 8
13 is established, the reset input acts on F and F815, the AND element 816 does not act on the θ output, the output P2 becomes inactive, and the solenoid 5OL2 is not energized.

In the timing circuit 806 in FIG. 16, an AND is established in the AND element 812 due to the action of the output R6 and the action of the output GM6, the set input acts on F and F815, and the θ output is in the action state, but the output GM6 is , F814 are also applied with the reset input, the θ outputs of F and F814 are inactive, the AND element 816 does not hold, the output P6 is inactive, and the solenoid 5OL6 is not energized.

Timing circuit 801, 803 to 805, 807°80
8 in FIG. 16, F, F815 is still in the reset state because no set input occurs, its θ output is inactive, AND element 816 is also inactive, and the output P1
．． P3-P5. P7°F8 becomes inactive, and all solenoids 5QL1 to 5QL8 are not energized.

As the carriage 4 moves, the lowering member 5 moves to the next knitting needle 2.
That is, when the No. 7 knitting needle of one block is pressed down, the pattern plate G7 is newly moved and the switch GS7 is activated.

The leading detection circuit 100 is shown in FIG.
Since S7 is activated from its inactive state, the single circle 107 is activated and a short-time activation signal is generated at the output GM7.

In FIG. 12, the non-pressure detection circuit 600
Since S7 is an effect and the output P7 of the timing circuit 807 remains inactive, the inverter element 607 is an effect, and the AND element 617 is established and becomes an effect.
The OR element 621 continues to hold the OR and continues to operate, and the inverter 631 remains inactive, that is, the output AR remains inactive.

In FIG. 13, the rolling start detection circuit 200 outputs an output AR.
Since F and F202 are in the set state and their θ outputs remain in effect, the single mark 203 has already become inactive and its output TOP has become inactive.

In FIG. 15, the block moving direction detection circuit 300
Since the set input does not act on both F and F 303 and 304, they remain in the 11 set state, the θ outputs are both inactive, AND elements 305 and 306 output because the AND is not satisfied, and R is inactive. It remains as it is.

In the block detection circuit 400 in FIG. 10, none of the up input, down input, load input, and reset input act, and its outputs B1 to B5 are 1, O, O, O, O.
, and remains as an output meaning one block.

In FIG. 15, the stage detection circuit 700 has a reset input,
Neither the down input nor the amplifier input acts, and the outputs A1 to A7 are o, o, o, o, o, o, o.
is maintained, and remains the output meaning the first stage.

Since the address inputs of B1 to B5 and A1 to A7 of the ROM 500 do not change, the outputs R1 to R8 are 0, 1.0.1.
It remains 0.1.0.1.

Timing circuits 801 to 805, 807, and 808 are the first
In FIG. 6, the AND of the AND element 812 is not established;
The output becomes inactive, the set input does not act on F and F815, and its θ output remains inactive, and the AND of the AND element 816 does not hold, and each output P1 to P5, F
7, F8 becomes inactive, and solenoids 5QL1 to 5.
7.8 is not energized.

The timing circuit 806 is the OR element 81 in FIG.
Since the output 0M2 output AR, which is the input of 3, is non-active, OR is not established, and the output remains non-active, and F
, F815 remains set and its θ output remains active.

On the other hand, the output GM5. which is the input of the OR element 811. Output GM7 of GM7 becomes an action, OR is established, its output becomes an action, set input is given to F and F814, its θ output also becomes an action, AND element 816 becomes an AND, and output P6 becomes an action. , energizes the solenoid 5OL6 via the drive circuit 906.

The pattern version G6 and the number 6 knitting needle 2 of one block are in the state shown by ■ in FIG.

Next, when the No. 8 knitting needle 2 of one block is pressed down, the pattern plate G8 is newly moved and the switch GS8 is activated.

In FIG. 11, the leading needle detection circuit 100
Due to the change in S7 to action, single circle 108 acts, and a short-time action signal is generated at output GM8.

In FIG. 12, the non-pressure detection circuit 600
Since S8 is active and the output P8 of the timing circuit 808 remains non-active, the inverter element 608 is active, the AND element 618 is active, the OR element 621 continues to be active, and the inverter 631 is non-active, i.e. Output AR remains inactive.

In FIG. 13, the rolling start detection circuit 200 outputs an output AR.
is inactive, the θ outputs of F and F202 remain active, and the output TOP remains inactive.

In FIG. 14, the block moving direction detection circuit 300
A set input occurs in F and F303, and its θ output becomes an effect, but since the output GMI has no effect, the AND element 305
is inactive, and the set input does not act on F and F304, so their θ outputs remain inactive, and the AND element 30
6 is inactive and output, and R remains inactive.

Therefore, the outputs of the block detection circuit 400 and the stage detection circuit 700 do not change, and the outputs R1 to R8 of the ROM 500 are 0.1
．． 0.1.0.1.0.1. It remains as it is.

In timing circuits 801 to 805 and 807, in FIG. 16, the AND of AND element 812 is not established, its output is inactive, the θ outputs of F and F815 remain inactive, and the output of AND element 818 is becomes inactive, and each output P
1-P5. P7 is inactive, and solenoids 5QL1-5.
7 is not energized.

In FIG. 16, the timing circuit 806 includes an OR element 8
The two-man power of 13 remains non-acting, and its output is non-acting,
The θ output of F and F815 remains in effect.

On the other hand, the output GM6, which is the reset input of F and F814, does not act, and its θ output remains in effect, and the AND element 816
The AND is established, the output P6 remains in effect, the solenoid 5OL6 continues to be energized, and the pattern plate G6 is in the state shown in (■) in FIG.

Timing circuit 808 is an input to AND element 812 in FIG.

Since the output GM8 and the output R8 are acting, the output of the AND element 812 becomes the effect, F and F815 are set, and their θ output becomes the effect.

On the other hand, output GM8 resets F and F814, and its θ
This is the output of AND element 816 to make the output inactive.

F8 remains inactive and solenoid 5OL8 is not energized.

Next, when the No. 1 knitting needle 2 of the 2nd block is pressed down, 2 is newly moved to the pattern plate G1 and the search board, and the switch GS1. K.S.
2 comes into play.

In FIG. 11, the leading needle detection circuit 100
Due to the action of S1, the single mark 101 acts, and the output GMI
occurs.

In FIG. 12, the non-pressure detection circuit 600
Since S1 is active and output P1 is non-active, AND element 6
11 becomes active, the OR element 621 remains active, and the output AR, which is the output of the inverter 631, remains inactive.

Since the output AR of the roll-down start detection circuit 200 is inactive in FIG. 14, the output TOP remains inactive.

In FIG. 14, the block moving direction detection circuit 300
The θ outputs of F and F303 remain active, the output GM1 acts, AND is established in the AND element 305, and its output L acts.

On the other hand, set input occurs in F and F304, and its θ output becomes an effect, but the output GM8 has no effect, so the AND element 3
Output R, which is the output of 06, remains inactive.

In FIG. 10, the block detection circuit 400 only acts on the up input, and its outputs B1 to B5 count up by one and change to 0.1.0.0.0, which means 2 blocks.

In FIG. 15, the stage detection circuit 700 has a reset input,
Neither the down input nor the up input acts, and the outputs A1 to A7 are o, o, o, o, o, o, o
is maintained, and remains the output meaning the first stage.

In the ROM 500, the address input of the second block of the first stage acts, and according to the table above, the outputs R1 to R8 are 1.1.0.
．． 0.1.1.0.0.

In the timing circuits 802 to 805 and 807 in FIG. 16, the AND of the AND element 812 is not established, its output is inactive, the θ outputs of F and F815 remain inactive, and the output of the AND element 816 is becomes inactive, and each output P
2-P5. P7 is inactive, solenoid 5QL2~5.
7 is not energized.

In FIG. 16, the timing circuit 801 is operated by the output GM1 and the output R1, and the AND element 812 is operated.
Set 815 and apply the θ output.

On the other hand, due to the action of output GM1, F and F814 are reset, their θ output becomes inactive, output P1, which is the output of AND element 816, becomes inactive, and solenoid 5OL
1 is not energized.

In FIG. 16, the timing circuit 806 includes an OR element 8
The two-man power of 13 remains non-acting, and its output is non-acting,
The θ output of F and F815 remains in effect.

On the other hand, the output GM6, which is the reset input of F and F814, does not act, and its θ output remains in effect, and the AND element 816
The output P6 remains in effect, the solenoid 5OL6 continues to be energized, and the pattern plate G6 is in the state shown in (■) in FIG.

In FIG. 16, the timing circuit 808 is the OR element 8.
Since the output GM4 output AR, which is the input of 13, is non-active, OR is not established and the output remains non-active,
F and F815 remain set and their θ outputs remain active.

On the other hand, the output GMI of the output GM7.0M1, which is the input of the OR element 811, becomes the effect, the OR is established, the output becomes the effect, and a set input is given to F and F814, and its θ output also becomes the effect, and the AND element At 816, the AND is established, the output P8 is activated, the solenoid 5OL8 is energized, and the pattern plate G8 is brought into the state shown in (■) in FIG.

Next, when the second knitting needle 2 of the second block is pressed down, the pattern plate G2 is newly moved and the switch GS2 is activated.

The leading detection circuit 100 is shown in FIG.
Due to the action of S2, the single ring 102 acts, and the output GM2
occurs.

In FIG. 12, the non-pressure detection circuit 600
Since S2 is active and the output P2 is non-active, the AND element 612 is active, the OR element 621 remains active, and the output AR, which is the output of the inverter 631, remains non-active.

In FIG. 13, the rolling start detection circuit 200 outputs an output AR.
Since is inactive, the output TOP remains inactive.

In FIG. 14, the block moving direction detection circuit 300
F, F2O3 are in the set state and their θ output is an effect, but the output GM1 is inactive, so the output of the AND element 305 is inactive, and the OR element 302 is actuated by the action of the output GM2. and resets F and F2O3, making their θ outputs inactive, and the output R, which is the output of AND element 306, remains inactive.

Therefore, the outputs of the block detection circuit 400 and the stage detection circuit 100 do not change, and the outputs R1 to R8 of the ROM 500 remain at 1, 1.0.0.1.1.0.0.

The timing circuit 801 is F and F815 in FIG.
is in the set state, its θ output remains in effect, and on the other hand, the output GM2 acts on the OR element 811, and F
, the θ output of F814 acts, AND of AND element 816 is established, output P1 acts, and solenoid 5OLI
is energized, and the pattern plate G1 becomes in the state shown in FIG. 8.

In FIG. 16, the timing circuit 802 acts on the output GM2 and the output R2, and the AND element 812 acts on the F.
, F815 is set, and -θ output is applied.

On the other hand, due to the action of output GM2, F and F814 are reset, their θ output becomes inactive, output P2, which is the output of AND element 816, becomes inactive, and solenoid 5OL
2 is not energized.

The pattern plate G2 is in the state shown in H in FIG.

Timing circuits 803 to 805.807 output each output P3 to
P5. P7 is still inactive and SQL, 3-5.7, remains unpowered.

The timing circuit 806 operates the OR element 813 by the action of the output GM2, and resets F and F815.
The θ output is ignored and is the output of the AND element 816.

P6 becomes inactive and de-energizes solenoid 5OL6.

The pattern plate G6 becomes ■ and ■ in FIG. 8, and the switch GS6 also becomes inactive.

The knitting needle 2 of No. 6 in one block is energized by the first cam 11 in FIG. 9 when it is in the state V in FIG. 8, and is sorted by the second cam 12 in the state shown in ■.

On the other hand, the no. 7 knitting needle 2 of one block was not energized to the solenoid 5OL7 of the pattern plate G7, so Il, 1.
IV and V are activated, and in FIG. 9, the first cam 11 selects, and the switch GS7 also becomes inactive.

The output P8 of the timing circuit 808 remains in effect, the solenoid 5OL8 remains energized, and the pattern plate G8 is in the state shown in FIG. 8.

Next, when the last knitting needle, No. 3 knitting needle 2 of the 2nd block, is pressed down, the pattern plate G3 is newly moved, and the switch GS3
acts.

In the leading detection circuit 100 in FIG.
Due to the action of 3, the single circle 103 acts and the output GM3 is generated.

In FIG. 12, the non-pressure detection circuit 600
Since S3 is active and the output P3 is non-active, the AND element 613 is active, the OR element 621 remains active, and the output AR, which is the output of the inverter 631, remains non-active.

In FIG. 13, the rolling start detection circuit 200 outputs an output AR.
Since is inactive, the output TOP remains inactive.

The block moving direction detection circuit 300 has no change in input;
Both the output and R remain inactive.

Therefore, the outputs of the block detection circuit 400 and the stage detection circuit 700 do not change, and the outputs R1 to R8 of the ROM 500 are 1.1
．． It remains 0.0.1.1.0.0.

There is no change in the input to the timing circuit 801, the output P1 remains in effect, the solenoid 5OL1 remains energized, and the pattern plate G1 is in the state shown in FIG. 8.

In FIG. 16, the timing circuit 802 outputs GM3.
acts on the OR element 811, F, F814
is set and its θ output is used as an effect, F and F815 remain in the set state, and their θ output also becomes an effect, causing P2, which is the output of the AND element 816, to act and energizing the solenoid 5OL2.

The pattern plate G2 is in the state shown by ■ in FIG. The outputs P3 to P7 of the timing circuits 803 to 807 are still inactive, and the solenoids 5QL3 to 7 are not energized.

There is no change in the input to the timing circuit 808, the output P8 remains in effect, the solenoid 5OL8 remains energized, and the pattern plate G8 is in the state shown in FIG. 8.

The carriage 4 moves further, and the knitting needle 2 of No. 3 of the 2nd block is moved.
In Figure 7, from ■ to 1. IV.

When electricity is applied to the approximately 3-stitch pitch pressing member 5, the pattern plate G3
Returning, switch GS3 becomes inactive.

At this time, the energized solenoid is 5OL1゜5OL
2.5OL8, and the rolling member 5 does not roll down the knitting needles 2.

Therefore, switch GS1. Only GS2° and GS8 are acting.

In FIG. 12, the non-rolling down detection circuit 600 outputs the output P1. P
2. Since P8 is the action, inverter 601.602
．． 608 becomes inactive, and AND elements 611, 612 .
In 618, the AND is not established and there is no effect.

On the other hand, the switches GS3 to GS7 are inactive, and the AND elements 613 to 617 are also inactive because the AND is not established.
OR element 621 indicates that OR is established.1. It becomes inactive, and the output AR, which is the output of inverter 631, becomes active.

Since the leading detection circuit 100 has no newly activated switch, all of the outputs GMI to GM8 become inactive.

In FIG. 13, the rolling start detection circuit 200 outputs an output AR.
As a result, F and F2O3 are reset, and their θ outputs change from being active to being inactive, but the single mark 203 is not acting and the output TOP remains inactive.

In FIG. 14, the block moving direction detection circuit 300
By the action of the output AR, OR elements 301 and 302 are activated, F and F3O3°304 are reset, and their θ
The output is inactive and is the output of AND elements 305 and 306.

output, leaving R inactive.

In FIG. 10, the block detection circuit 400 outputs AR
Due to the action of , the reset input acts, and the outputs B1 to B5
are o, o, o, o, o, indicating that the knitting needles 2 are not rolled down by the rolling member 5.

In the stage detection circuit 700 in FIG. 15, the up/down counter 703 counts up due to the action of the output AR, and the outputs A1 to A7 become 1, 0.0.0.0.0.0, meaning the second stage. do.

The ROM500 follows the second stage O block in the table above, and the outputs P1 to P8 are o, o, o, o, o, o, o.
, changes to o.

In FIG. 16, the timing circuits 801 to 808 are operated by the OR element 813 due to the action of the output AR, and the timing circuits 801 to 808 are
815 is reset, the θ output becomes inactive, outputs P1 to P8, which are the outputs of AND element 816, become inactive, and all solenoids 5QL1 to 5QL8 are not energized.

In this way, the knitting needles of No. 6.8 of the 1st block and No. 1.2 of the 2nd block are locked downward, and the second cam 1 of FIG.
2, the knitting needles No. 7 of the 1st block and No. 3 of the 2nd block are not locked downward, and the knitting needles of the first cam 11 of FIG.
It is sorted by.

This completes the first stage of needle selection, and then the carriage 4 moves from the second block to the first block to begin the second stage of needle selection.

As the carriage 4 moves, the No. 3 knitting needle 2 of the second block is rolled down by a rolling member (reverse direction rolling member 5, not shown).

2 is moved to the pattern plate G3 and the search board in the relationship shown in FIG. 3, and the switches GS3 and KS2 are activated.

In FIG. 12, the non-pressure detection circuit 600
Since S3 is active and output P3 is non-active, AND element 6
13 becomes active, the OR element 621 acts, and the output AR, which is the output of the inverter 631, becomes inactive.

In FIG. 11, the leading needle detection circuit 100
S3 acts, the single circle 106 acts, and a short-time action signal GM3 is output.

In FIG. 13, the rolling start detection circuit 200 outputs GM
3 acted, the OR element 201 also acted, and the set input acted on F and F202, which were in the reset state.
The θ output changes to action, and the single circle 203 outputs a short-time action signal TOP.

The block moving direction detection circuit 300 is F in FIG.
, F304, 305 are in a reset state because the set input does not act, their respective θ outputs have no effect, and the outputs R, which are the outputs of AND elements 305, 306, remain inactive.

In FIG. 10, the block detection circuit 400 has an output TO
Due to the action of P, the load input acts, and the outputs B1 to B
The state of input KSI--KS5 is set to 5 as is, and becomes 0.1.0.0.0, meaning 2 blocks.

The stage detection circuit 700 does not act on the reset input, down input, or up input, and the outputs A1 to A7 are 1, 0, . O,0
, 0, O, O.

In the ROM 500, the address input of the second block in the second stage acts, and according to the table above, the outputs R1 to R8 are 0.0.1.
．． 1.0.0.1.1.

In FIG. 16, the timing circuit 803 outputs GM1.
By the action of and R3, the AND element 812 is operated, and F
, F815 is set and its θ output is used as an effect, while
By the action of output GMI, reset F and F814,
The θ output is made inactive, F3 which is the output of AND element 816 is made inactive, and solenoid 5OL3 is not energized.

The timing circuits 801, 802, 804 to 808 are the first
In FIG. 6, since F and F815 are in the reset state, their θ output is inactive and is the output of the AND element 816.

Pl, F2. Deactivate P4 to P8 and set solenoid 5Q
LI, 2.

5QL4 to 5OL8 are not energized.

Thereafter, it operates in the same manner as in the first stage.

When the No. 8 knitting needle of the first block is newly pressed down, the output R of the block movement direction detection circuit 300 acts on the down input of the block detection circuit 400, counts down the up/down counter, and outputs B1 to B5 to 1.0. O, O, O means one block.

A detailed explanation of the second-stage action will be omitted. In FIG. 15, the stage detection circuit 700 counts down the up/down counter 703 when the switch 702 is activated.
Used when a knitting machine user makes a knitting mistake and has to reknit several rows.

In the above embodiment, the controller 1000 cannot lock and select the last knitting needle.

This is a consideration when using a race carriage and is not directly related to the present invention, so the details will be omitted.

In particular, in the present invention, when the end needle is pressed down, the binary code signals of the switches KS1 to KS5 generate a signal of the rolling start detection circuit 200, which is stored in the block detection circuit 400, and the carriage further moves to lower the rolling. When the block of the knitting needles currently in use changes, the block movement direction detection circuit 300 detects whether the block number increases or decreases and generates a signal, and the block movement direction detection circuit 300 detects whether the block number increases or decreases and generates a signal.
By adding and subtracting the communication signals, the block detection circuit 400 always generates two communication signals corresponding to the block number to which the knitting needle 2 newly rolled down by the rolling member 5 belongs.

- As explained above, the position of the end needle of the knitting needle carriage toward which it is being knitted is detected in relation to its position in the knitting machine body, and the positions of other knitting needles are determined based on the position of the end needle. Because of this detection, the carriage always passes through the end needles, making it possible to select needles reliably.

In addition, since the end needle is always passed for each row of knitting, there is no possibility that the needle will not pass through the reference position.

Furthermore, since the position of a new knitting needle is read every time one row is knitted, there is no accumulation error for each row.

Furthermore, even if the carriage is knitted continuously from the same direction, the needles will always pass through the end needles, so needles can be selected reliably.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a knitting machine showing an embodiment of the present invention, FIG. 2 is a system diagram of electronic needle selection control of a knitting machine implementing the present invention, and FIG. 3 is a diagram of the relationship between knitting needles and a control device. FIG. 4 shows the configuration of the switch section. FIG. 5 shows a diagram of the relationship with knitting needles. Fig. 6 shows the pattern drive device of the electronic needle selection control device, Section 7.8.
Fig. 9 is an explanatory diagram of the operation of the electronic control device, Fig. 10 is an explanatory diagram of the operation of the electronic needle selection control device, 11.12.13.14.1
5-. Figure 16 is a detailed diagram of the electronic circuit in the electronic needle selection control device. Explanation of the main parts of the diagram, 1...needle bed, 2...
...Knitting needle, 3...Leaf spring, 4...
... Carriage, 5 ... Lowering member, 7 ...
...Plate support member, 8...Plate support rod.

Claims (1)

[Claims] 1. A plurality of knitting needles supported on a needle bed so as to be movable back and forth and up and down, a carriage movably disposed on the needle bed, and a lowering member provided on the carriage for sequentially lowering the knitting needles to a lower position. The position of a plurality of knitting needles is divided into blocks with respect to the needle bed, and the position of the end needle among the knitting needles that is pressed down by the pressing member is detected as a hook signal, and the position of the end needle is detected as a hook signal, and By detecting changes in the block of knitting needles that are rolled down by the rolling member,
a block detection circuit that corrects the block signal to a block signal of a newly reduced knitting needle; and a block detection circuit that corrects the block signal to a block signal of a newly reduced knitting needle; A needle selection control device for a knitting machine, characterized in that a corresponding one is read out and needles are selected according to the content of the electric signal.