JPS5847504B2 - Knitting machine needle selection device - Google Patents

Description

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

Conventionally, the needle selection device detects the operating knitting needles by detecting the position of the carriage and the relative position of the needle bed.
A detection device was installed in the carriage, or the needle bed was detected via a belt or the like.

Moreover, when there are multiple needle selection devices, there are cases where a plurality of the above-mentioned detection devices are provided.

An object of the present invention is to detect knitting needles in a knitting machine by detecting the knitting needles through the movement of the knitting needles when the needle selection device is operating, thereby eliminating the need for adding a special device to the carriage and enabling reliable detection. That is.

In addition, even if there are multiple needle selection devices in a knitting machine, the operating needle selection device will work automatically, so that there is no need to provide a detection device for each of the multiple needle selection devices. That is.

Furthermore, the knitting needles to be detected are divided into blocks, for example, how many blocks and what numbers are detected, and the device is simplified by using the handle plate of the needle selection device to detect the position within the block. This can be used to facilitate the correspondence between the detection signal and the handle plate.

In addition, the needle selection device detects the relative position between the knitting needle on which it is acting and the needle bed, transmits the needle selection information at that relative position to the needle selection device, and selects the knitting needles according to the needle selection information. The present invention can be used as a device for detecting the relative position between a needle selection and a needle bed in a method.

Furthermore, the needle selection device detects the presence or absence of working knitting needles, and can be used in feed control devices for row counters, punch cards, and the like.

Embodiments of the present invention that achieve the above objects will be described below with reference to the accompanying drawings.

Figure 1 shows the needle selection mechanism of a home-use knitting machine. 1 is a needle bed, and knitting needles 2 are placed on top of this. They are arranged so that they can be moved downward and forward and backward.

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 carriage 4 that moves from side to side on the needle bed 1 is provided with a batt-down member 5, so that only the knitting needles are pushed down to the solid line position indicated by the symbol opening, and the non-knitted knitting needles do not pass through the batt-down member 5 and are not rolled down. It has become.

8 handle plates G1 to G8 and 5 search plates K unique to the present invention
1 to K5 are attached to the plate support member γ facing the knitting needles 2.

Switches GS1 to GS8, KSI to KS5 for position detection on handle plates G1 to G8 and search plates K1 to K5, respectively
is provided.

When the knitting needle 2 is pushed down to the opening position, the handle plates G1 to G8
Any one of these and at least one of the search boards K1 to K5
Move more than one sheet in the longitudinal direction.

Solenoid S attached to solenoid support member 55
QL1-8 are the handle plates G1-8 that have been 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, search plates K1 to K5 and handle plates G1 to G8 are operated.

As shown in Fig. 3, handle plates G1 to G8 are knitting needles 2...
A protrusion 20 is provided corresponding to needle numbers 1 to 8 of each block (one block is composed of needle numbers 1 to 8), and this protrusion 20 has a 1st cam surface 2
1 is provided.

The handle plates G1 to G8 are always biased in the left direction (arrow a) in FIG. 3 by a spring.

When the knitting needle 2 is pressed down, the handle 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 GH8 are formed in handle plates G1 to G8, which are held movably laterally by a plate support rod 8, respectively.
is provided, and when the handle plate moves to the right in the figure, switches GS1 to GS8 are activated via levers GL1 to GL8.
The controller 1000 is activated as shown in FIG.
is input.

On the other hand, as shown in FIG. 3, the search boards K1 to K5 are provided with protrusions 30 corresponding to each block in which the 20 knitting needles numbers 1 to 8 form one block.

The relationship is as shown in Figure 5, and each search board K1 to K5
, 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.

As shown in Figure 4, search boards K1 to K5 also have small holes KHI? 5 is provided, so that when the search board moves to the left in the figure, switches KS1 to KS5 are actuated via levers KL1 to KL5, and the controller 1000 is manually operated as shown in FIG.

The search plates K1-K5 are always urged rightward in FIGS. 3 and 4 by springs of switches KSI-KS5 via levers KLI-5, respectively.

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

Similarly, the search boards K1 to K5 also have a positioning rod 51 and each elongated hole 53.
Lateral movement is restricted by

Since the search boards K1 to K5 and the pattern boards G1 to G8 are configured as described above, for example, the fifth knitting needle 2 of the 21st block
When KS1 and K are lowered, switches KS1 and K
S3 and KS5 act, and switch GS5 acts in the relationship shown in FIG.

In the controller 1000, the switches KS1 to KS
The block can be detected by the code number 5, and the needle number in the book can also be known from the switches GSI 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 needle detection circuit 100 and the non-rolling detection circuit 600.

The leading needle detection circuit 100 includes a pressure start detection circuit 200, a block movement direction detection circuit 300, and a timing circuit 800.
It is connected to the.

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 flock detection circuit 400 and stage detection circuit 100 are connected to the IJ-doon memory (hereinafter referred to as "ROMI").
) 500, its output is connected to a timing circuit 800, and this output is further connected to a non-pressure detection circuit 60.
0 and the drive circuit 900.

The drive circuit 900 is connected to the solenoids SOL1 to SOL8 as outputs of the controller 1000.

As shown in Fig. 6, the small holes GWI to G in the handle 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 handle plate is in the normal position,
The positional relationship is that of the S bar SB7, and if the handle plate has moved to the right in FIG.

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 SOL8, for example.

Plunger PL8 is attracted by solenoid SOL8, and handle plate G8 is held in this position.

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

7 and 8 show the protrusion 20 on 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. 10 is shown in Fig. 7, Fig. 8, and b→I.
．． c→II. d→III, e→IV. f-+V, g→V
I. Almost corresponding to h→■, L・ru.

1, the knitting needles 2 are pressed down by the pressing member 5, and finally, as shown in ■, the handle plate is moved to the left in the figure by the first cam surface 21 against the biasing force A of the handle plate.

The handle plates G1 to G8 are always moved in the A direction (Tth direction) by the springs SP1 to G8 shown in FIG.
The figure is energized.

In (2), the switch corresponding to the handle plate 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 needle 2 is returned upward by the biasing force A of the handle plate and the spring 3.
The handle plate also returns to its original position as the knitting needle 2 moves, and v,
VI, ■ is completely restored, the switch is also inactive, and the solenoid is connected to the plunger P in Figure 6.
The state has returned to L7.

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 cow 10.

In FIG. 8, I and II act in the same manner as in FIG.

At (3), the timing circuit 8000 causes current to flow through the solenoid through 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 knitting needle 2 is returned upward by the biasing force A of the handle plate and the spring 3 as shown in (1) and (2), and the switch becomes inactive.

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 not locked as shown in C, and the needles are selected in this way by the selection cam 10 provided on the carriage 4.

Next, controller 1000 will be explained in more detail.

As shown in FIG. 10, the leading detection circuit 100
As shown in FIG. 8, the handle plate may be held at the position where the switches GS1 to GS8 act, and even when a plurality of switches GS1 to GS8 act, the handle plate is always held at the position where the switches GS1 to GS8 act. This circuit detects the signal of the switch GSI~8 of the knitting needle 20 number newly pressed down by the pressing member 5.

When the switches KS1 to KS5 are located below two or more knitting needles 2, the knitting start detection circuit 200 always detects only one knitting needle 2 because it may span over two flock numbers and the correct code signal may not be detected. This circuit detects the state in which the knitting needle 2 is in the lower position, that is, the knitting member 5 first presses down the knitting needle 2 in that row of knitting.

In other words, in that case, the switches KS1 to KS5 represent the code signal of the correct flock number of the knitting needles 2.

As shown in FIG. 3, the block movement direction detection circuit 300 detects that when the number of knitting needle 20 changes from number 8 to number 1, the flock number increases, and when the number of knitting needle 2 changes from number 1 to number 8. This is a circuit that detects a change in the block of the knitting needle 2 newly rolled down by the rolling down member 5, paying attention to the decrease in the block number.

When the signal from the rolling start detection circuit 200 is generated, the block detection circuit 400 reads the code signals 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 added to the stored block number. This circuit always outputs the block number of the knitting needle 2 newly rolled by the rolling member 5 by subtracting 1 and storing it as a new block number.

Since the ROM 500 stores in advance the needle selection state of each flock in each stage, it corresponds to a conventional punch card.

The ROM 500 receives the outputs of the block detection circuit 400 and the stage detection circuit γ00 as address inputs, and generates a pre-stored 8-bit output corresponding to the address inputs.

This 8-bit output corresponds to knitting needle 20 number 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 GS1 to GS8 are activated and detects that the rolling member 5 has finished rolling down the knitting needles.

However, if the solenoids SQL1 to SOL8 are working, the switches GS1 to GS8 will continue to work, so
Since it may not be possible to detect the end of pressure reduction, depending on the timing of the timing circuit 800 and the energization signals to solenoids SQL1 to 8, one of the solenoids SQL1 to SQL8 may act to detect the end of pressure reduction even if the switch is activated. Corrected for detection.

The stage detection circuit 100 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 number l knitting needle 2 of the second block is pushed down and becomes the state shown in (■) in FIG.
1 is activated, the current is not immediately energized to the lenoid SOLIK, and then 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 2.
In the state shown in the figure, the solenoid SOLI is energized.

Next, the number 3 knitting needle 2 of the 2nd block is pushed down, and the switch G
When S3 is activated, the state shown in (■) in Figure 8 is reached, and the current is kept flowing to the renoid SOL1.Next, the No. 4 knitting needle 2 of the 2nd block is pressed down, and when the switch GS4 is activated, the state shown in Figure 8 is established. The state of (2) is reached, and the solenoid SQL1 remains energized.

Next, the No. 5 knitting needle 2 of the 2nd block is pressed down, and the switch G
As soon as S5 acts, the energization of SOL1 is stopped, and no current flows, resulting in the state shown in (■) in FIG.

In this way, the solenoid SQ corresponding to each handle plate G1 to G8
The leading needle detection circuit 100 determines the timing for energizing L1 to L8.
The solenoid SQL1 to SQL8 are energized according to the output of the ROM 500.

When the signal from the non-pressure detection circuit 600 is generated, the solenoid S
All of QL1 to QL8 are not energized.

The drive circuit 900 amplifies the output of the timing circuit 800 and provides the amplified output to the solenoids SQL1 to SQL8.

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

One end of the switches GS1 to GS8 on the handle plates G1 to G8 is connected to the power supply, and the other ends are grounded through resistors 91 to 98, respectively, and are also connected to the inputs of the leading needle detection circuit 100 and the non-rolling detection circuit 6000. are doing.

The switches GSI to GS8 are turned ON when activated.

On the other hand, one end of the switches KSI to KS5 on the search boards K1 to K5 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 needle detection circuit 100 receives an input G as shown in FIG.
S1 to GS8 are connected to monostable multivibrators (hereinafter referred to as single multivibrators) 101 to 108, respectively, and the outputs GMI to GM8 of the single multivibrators 101 to 108 are connected to a rolling start detection circuit 200, a block movement direction detection circuit 300, and a timing circuit. Connected to inputs 801-808.

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 to 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 OFF element 621.
0 input, and the output of the OR element 621 becomes the output AR of the non-reduction detection circuit 600 via the inverter element 631.

As shown in FIG. 13, the rolling start detection circuit 200 inputs the outputs GM1 to GM8 of the leading needle detection circuit 100 to an OR element 201, and the output of the OR element 201 is connected to a reset and set flip-flop (hereinafter referred to as rF-FJ). )202
Connected to 0 set input.

The output AR of the non-pressure down detection circuit 600 is connected to the reset input of the F-F 202.

The 0 output of F-F202 is connected to the single input of 2030,
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 moving direction detection circuit 300 outputs GMI from the AND element 30501 human power and F-F
Connect to 3040 set input, output GM8 is F-F30
3 set input and AND element 30601 human power,
The output GMγ is connected to one output of the 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 OR element 301 is connected to the reset input of F-F 303, and the output of OR element 302 is connected to the reset input of F-F 304.

The θ output of F-F 303 is connected to another input of AND element 305, and the θ output of F-F 304 is connected to another input of AND element 306.

The output of the AND element 305 is the block movement direction detection circuit 3.
The output of the AND element 306 is the output R of the block moving direction detection circuit 3000.

The block detection circuit 400 is composed of a 5-bit up-down counter element, and the output L is connected to the amplifier 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 KS1 to KS5 are connected to the power of each bit,
The outputs B1 to B5 of each bit represent the code signal of the block number as the output of the block detection circuit 400.

In the stage detection circuit 700, as shown in FIG. It is connected to down power and also 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 AI to decimal and display them numerically, but this is not directly related to the present invention and will therefore be omitted.

The ROM 500 has 12 bits of outputs B1-B5 and outputs A1-AI connected to address inputs, 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 structure, 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 OR element 8110 input, and the output GMI is connected to the reset input of F-F814 and to the AND element 81201 input.

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.
50 set input, and the output of OR element 813 is F-
Connect to the reset input of F815, connect the θ output of F-F814 to the single 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 timing circuit 8010 output P1 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 SQL1-8, 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 was 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 a single chip, which can reduce the burden on cost and space.

As can be understood from the above description of the structure, the present invention is particularly advantageous in that, as shown in FIG. This invention relates to retrieval boards K1 to K5, which are characterized in that the retrieval boards K1 to K5 are capable of selecting knitting needles by controlling the locking of knitting needles using the handle plates G1 to G8.

Further, in the embodiment, the search plates K1 to K5 are configured to move in the longitudinal direction, but it is easy to change them in the vertical direction.

Furthermore, the shape of the protrusion can be easily modified into various shapes such as a window-hole type.

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

Now, a case will be explained in which knitting is performed from the number 6 knitting needle 2 of the first block to the number 3 knitting needle 2 of the second flock.

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 flock to the direction of the second flock.

First, in FIG. 15, the switch 701 is operated to make the outputs of the stage detection circuits 7000A1-AI the first stage code signal.

The rolling down member 5 of the carriage 4 is passed through the knitting needles 1, 2, and 3 of one flock, but since the knitting needles are non-knitting needles, they are not rolled down.

Therefore, since the switches GS1 to GS8 remain OFF, 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 operating state when the OR signal is set, 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 S
OL1-8 are not energized.

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

The handle plate G6 and the search plate K1 move according to the relationship shown in FIG.
Switches GS6 and KS1 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 circuits 200, 300, 400, and 800 is released.

The leading needle detection circuit 100 is connected to the switch GS in FIG.
6 acts, the single mark 106 acts, and the short-time signal is G.
M6 outputs.

The rolling start detection circuit 200 outputs GM6 in FIG.
acts, the OR element 201 holds OR, the OR element 201 acts, and F-F20 which was in the reset state
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 flock movement direction detection circuit 300
Since the output AR has changed from working to non-working, F-F304
, 305, the reset input changes from action to non-action, but since no set input occurs, both θ outputs remain non-action, AND is not established for AND elements 305 and 306, and outputs L and R become non-action. Become.

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 B5
The status of inputs KS1 to KS5 is set as is, and 1
．． 0. 0. 0. It becomes 0, meaning 1 block.

The stage detection device 100 does not count up when the output AR changes from action to non-action, and the outputs A1 to AI, 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. 0. 1. 0. 1. 0. It becomes 1.

In FIG. 16, the timing circuit 802 includes an OR element 8
13 is established, the reset input acts on the F-F815, the θ output is inactive, the AND element 816 is also inactive, the output P2 is inactive, and the solenoid SOL2 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 output R6 and the action of output GM5, the set input acts on F-F815, and the θ output is in the active state, but the output GM6 is Since the reset input is also applied to the F-F814, the θ output of the F-F814 is inactive, the AND of the AND element 816 is not established, the output P6 is inactive, and the solenoid SOL6 is not energized.

Timing circuits 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 outputs Pi, P
3 to P5, P7, and P8 are inactive, and all solenoids SQL1 to SQL8 are not energized.

As the carriage 4 moves, the lowering member lowers the next knitting needle 2, that is, the number 7 knitting needle of one block, the handle plate G1 moves anew and the switch GSγ is activated.

In FIG. 11, the leading needle detection circuit 100
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 timing circuit 8070 output P7 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.
is inactive, so F-F 202 is in the set state and its θ output remains in effect, single circle 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-Fs 303 and 304, they remain in the reset state, the θ outputs are both inactive, AND elements 305 and 306 output because the AND is not established, and R remains inactive. It is.

In FIG. 10, the block detection circuit 400 does not act on any of the up input, down input, load input, and reset input, and its outputs B1 to B5 are 1. 0. 0. 0
．． The output remains 0, meaning 1 block.

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 0. 0. 0. o. o. o. o is held, and the output indicating the first stage remains.

Since the address inputs of B1 to B5 and A1 to AI of the ROM 500 do not change, the outputs R1 to R8 are 0.1. 0.
1. 0. 1. Ω． It remains 1.

Timing circuits 801 to 805, 807, and 808 are the first
As shown in Figure 6, the AND of the AND element 812 does not hold.
Its output becomes inactive, the set input does not act on F-F815, its θ output remains inactive, and AND is not established in AND element 816, and each output P1 to P5, P
7, P8 becomes inactive, solenoid SQL1~5,
γ and 8 are not energized.

The timing circuit 806 is the OR element 81 in FIG.
Since the output GM2 and the output AR, which are the inputs of 3, are both inactive, OR is not established, and the output remains inactive,
F-F815 remains set and its θ output remains active.

On the other hand, the outputs GM5 and GM7 which are the inputs of the OR element 811
Among them, the output GM7 becomes an effect, the OR is established, the output becomes an effect, and a set input is given to F-F814,
The θ output also acts, and the AND element 816 establishes an AND, and the output P6 acts, energizing the solenoid SOL6 via the drive circuit 906.

The handle plate G6 and the No. 6 knitting needle 2 of one block are in the state shown by ■ in FIG. 8.

Next, when the No. 8 knitting needle 2 of one block is pressed down, the handle 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 output of F-F 202 remains active, and the output TOP remains inactive.

In FIG. 14, the block moving direction detection circuit 300
A set input is generated in F-F303, and its θ output becomes an effect, but since the output GMI is inactive, the AND element 305
becomes inactive, and the set input does not act on F-F304, so its θ output remains inactive, and the AND element 30
6 is inactive, and outputs L 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 0.
1. 0. 1. 0. 1. 0. It remains 1.

In timing circuits 801 to 805, 807, in FIG. 16, the AND of AND element 812 is not established, its output is inactive, the θ output of F-F 815 remains inactive, and the output of AND element 816 is becomes inactive, and each output P
1 to P5, P7 are inactive, solenoid SQL1 to 5,
1 is not energized.

In FIG. 16, the timing circuit 806 includes an OR element 8
1302 Human power remains non-acting, its output is non-acting,
The θ output of F-F815 remains active.

On the other hand, the output GM6, which is the reset manual power of F-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 SOL6 continues to be energized, and the handle plate G6 becomes in the state shown in FIG. 8.

In the timing circuit 808, in FIG. 16, the output GM8 and the output R8, which are input from the AND element 8120, are acting, so the output of the AND element 812 is acting, and F-F
815 is set and its θ output becomes the effect.

On the other hand, output GM8 resets F-F814 and its θ
In order to activate the output, P8, which is the output of AND element 816, remains inactive and solenoid SOL8 is not energized.

Next, when the No. 1 knitting needle 2 of the 2nd block is pressed down, the handle plate G1 and the search plate K2 are newly moved, and the switches GS1 and KS are moved.
2 comes into play.

In FIG. 11, the leading needle detection circuit 100
Due to the action of SI, 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 output of the F-F 803 remains active, the output GM1 acts, AND is established in the AND element 305, and its output L acts.

On the other hand, a set input occurs in F-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 flock detection circuit 400 acts only on the up input, and its outputs B1 to B5 count up by one and reach 0. 1. O. O. The output changes to O, meaning 2 flocs.

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.

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. O. It becomes O.

In timing circuits 802 to 805, 807, in FIG. 16, the AND of AND element 812 is not established, its output is inactive, the θ output of F-F 815 remains inactive, and the output of AND element 816 is becomes inactive, and each output P
2 to P5, P7 are inactive, solenoid SQL2 to 5
, 7 are 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.
815 is set to 1, and the θ output is applied.

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

In FIG. 16, the timing circuit 806 includes an OR element 8
1302 Human power remains non-acting, its output is non-acting,
The θ output of F-F815 remains active.

On the other hand, the output GM6, which is the reset input of F-F814, does not act, and its θ output remains in effect. AND element 816
The output P6 also remains in effect, the solenoid SOL6 continues to be energized, and the handle plate G6 becomes in the state shown in FIG. 8.

In FIG. 16, the timing circuit 808 is the OR element 8.
Since the output GM4 output AR, which is the 130 input, is non-active, OR is not established, and the output remains non-active,
F-F815 remains set and its θ output remains active.

On the other hand, the outputs GM7 and GMI which are the inputs of the OR element 811
Among them, the output GMI becomes the effect, the OR is established, and the output becomes the effect, giving the set power to F-F814,
The θ output also acts, and AND element 816 establishes an AND, output P8 acts, energizes solenoid SOL8, and puts handle plate G8 in the state shown in FIG. 8.

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

In FIG. 11, the leading needle detection circuit 100
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-F303 is in the set state and its θ output is active, but the output GM1 is non-active, and the AND element 305
Output L, which is the output of
The output R, which is the output of , 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 1.
1. 0. 0.1. 1. 0. It remains 0.

The timing circuit 801 is F-F815 in FIG.
is in the set state, its θ output remains in effect, and on the other hand, the output GM20 acts on the OR element 811, and F
- The θ output of F814 is used as an effect, AND of AND element 816 is established, output P1 is activated, and solenoid SOLI
is energized, and the handle 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.
- Set F815 and apply θ output.

On the other hand, due to the action of output GM20, F-F814 is reset, its θ output becomes inactive, output P2, which is the output of AND element 816, becomes inactive, and Nrenoid SOL
2 is not energized.

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

Timing circuits 803-805, 807 each output P3-
P5 and P7 are still inactive, solenoid SQL3~5,
7 remains unenergized.

The timing circuit 806 operates the OR element 813 according to the output GM20, and resets the F-F815.
The θ output is made inactive, P6, which is the output of AND element 816, is made inactive, and solenoid SOL6 is not energized.

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

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

On the other hand, the knitting needle 2 of No. 7 in one block was not energized to the solenoid SOL7 of the handle plate G7, so
In FIG. 9, it is selected by the first cam 11, and the switch GS7 also becomes inactive.

The output P8 of the timing circuit 808 remains active, the solenoid SOL8 remains energized, and the handle 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 handle plate G3 is newly moved, and the switch GS3
acts.

In the leading needle 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;
The outputs LFR and R remain inactive.

Therefore, the outputs of the block detection circuit 400 and the stage detection circuit γ00 do not change, and the outputs R1 to R8 of the ROM 500 are 1.
1. O. 0. 1. 1. It remains at 0.0.

If there is no change in the input to the timing circuit 801, the output P1 remains active, the solenoid SOL1 remains energized, and the handle plate G1 is in the state shown in FIG. 8.

In FIG. 16, the timing circuit 802 outputs GM3.
0 action acts on the OR element 811 and F-F814
is set, and its θ output is used as an effect.F-F815 remains set, and its θ output also becomes an effect, causing P2, which is the output of the AND element 816, to act, and energizing the solenoid SOL2.

The handle plate G2 is in the state shown in FIG. 8.

Timing circuits 803-807 each have outputs P3-P7 still inactive, and solenoids SQL3-7 remain de-energized.

There is no change in the input to the timing circuit 808, the output P8 remains active, the solenoid SOL8 remains energized, and the handle plate G8 is in the state V in FIG.

Carriage 4 moves further, and knitting needle 2 of No. 3 in block 2
In FIG. 7, after passing through the lowering member 5 at a pitch of approximately three stitches from ■ to III, IV, and V, the handle plate G3 returns and the switch GS3 becomes inactive.

At this time, the energized solenoids are SOLI and SOL.
2, SOL8, and the rolling member 5 does not roll down the knitting needles 2.

Therefore, only switches GSI, GS2, and GS8 are in operation.

The non-pressure detection circuit 600 has outputs Pi, P in FIG.
2. Since P8 is a function, inverters 601 and 602
, 608 are inactive, and the AND elements 611, 612
, 618, the AND does not hold and has no effect.

On the other hand, the switches GS3 to GS7 become inactive, and the AND elements 613 to 617 also become inactive because the AND is not established.
The OR element 621 does not hold an OR and becomes inactive, and the output AR, which is the output of the inverter 631, becomes active.

Since the leading needle detection circuit 100 has no newly activated switch, all of the outputs GM1 to GM8 become inactive.

In FIG. 13, the rolling start detection circuit 200 outputs an output AR.
As a result, F-F 202 is reset and its θ output changes 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
The action of the output AR causes the OR elements 301 and 302 to act, resets F'-F303 and 304, and makes their θ outputs inactive, which are the outputs of the AND elements 305 and 306.

Outputs L and R remain 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
is o. o. o. o. o, indicating that the knitting needle 2 is not pressed down by the pressing member 5.

In the stage detection circuit 700 in FIG. 15, the up-down counter 103 counts up due to the action of the output AR, and the outputs A1 to AI become 1. 0. O. 0. 0.0.
It becomes 0, meaning the second stage.

The ROM 500 corresponds to 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 and the θ output becomes inactive, so the outputs P1 to P8, which are the outputs of the AND element 816, become inactive, and all solenoids SQL1 to SQL8 are not energized.

In this way, the knitting needles of No. 6.8 of the l flock and No. 1.2 of the second block are locked downward, and the second cam 12 of FIG.
7 in the 1st block and 3 in the 2nd block.
The number knitting needles are not locked downward and are sorted by the first cam 11 shown in FIG.

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).

The handle plate G3 and the search plate K2 move in the relationship shown in FIG. 3, and the switches GS3 and KS2 act.

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 has acted, the OR element 201 has also acted, and the set input has acted on F-F202, which was 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.
-Fs 304 and 305 are in a reset state because the set input does not act on them, their θ outputs are inactive, and outputs L and R, which are the outputs of AND elements 305 and 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 B5
The state of inputs KS1 to KS5 is set as is, and the state becomes 0.
．． 1. O. 0. 0, meaning 2 blocks.

The stage detection circuit 100 does not act on the reset input, down input, or up input, and the outputs A1 to AI are 1. Oo. o.
o. o. It holds 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. It becomes 1.

In FIG. 1S, the timing circuit 803 outputs GM1.
By the action of and R3, the AND element 812 is operated, and F
- While setting F815 and making its θ output act,
By the action of output GMI, reset F-F814,
The θ output is made inactive, P3, which is the output of AND element 816, is made inactive, and solenoid SOL3 is not energized.

The timing circuit 80L802, 804 to 808 is the 16th
In the figure, since F-F815 is in the recent state, its θ output is inactive, P1, P2, P4 to P8, which are the outputs of AND element 816, are inactive, and solenoid SO
LI,2, SQL4 to SOL8 are not powered.

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 is applied, and the down input of the block detection circuit 400 is applied to cause the up-down counter to count down. Output 81~B5
1. 0. 0. 0. 0 means 1 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 103 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 sort the last knitting needle.

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

In particular, in FIG. 2, the present invention moves the search plates K1 to K5 by moving the knitting machine 2 downwardly, which has been rolled down by the rolling member 5, and causes the switches KSI to KS5 to act, and the rolling member 5 acts on the controller 1000. This is to transmit information about the knitting needles 2 that are present.

Figures 17, 1B, and 19 show the second search using the search board of the present invention.
An example is shown in which when the lowering member 49 provided on the carriage is located at the non-knitting needle, the knitting needle n does not act on the protrusion 27,
The switch 29 is inactive, the solenoid 37 is energized, the plunger 38 is extended, and the feed wheel 39 is moved one pinch.

Here, as the carriage moves, when the lowering member 49 is located on the knitting needle, the knitting needle n is lowered.

Since the protrusion 21 is provided facing the entire knitting needle, the search plate 25 is moved by the first cam 26 of the protrusion 21 as the knitting needle is pressed down.
moves, the switch 29 acts, and the switch 29 turns OFF.
F, the renoid 3T is de-energized, and the plunger 38 is retracted.

When the carriage moves further and the rolling member 49 is located at the non-knitting needle, the switch 29 becomes inactive again, the solenoid 31 is energized, the one-pitch feed wheel 39 rotates, and the punch card 43 is fed.

In this way, the carriage is configured to feed one pitch punch card 43 each time the carriage knits one row.

As described above, according to the present invention, since the needle selection device detects the knitting needles through the movement of the operating knitting needles, the position can be detected reliably.

Even if there are multiple needle selection devices, detection can be made in relation to which needle selection device is operating.

This requires a new member to connect the carriage and needle bed.

Further, there is no problem of synchronization with the connecting member. Since the knitting needles in which the needle selection device is activated can be electrically detected on the needle bed side, the electrical wiring can be fixed and highly reliable.

[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. Figure 6 shows the handle plate drive device of the electronic needle selection control device, 7th, 8th,
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, Nos. 11, 12, 13, 14, 1
5 and 16 are detailed diagrams of the electronic circuit in the electronic needle selection control device, and FIGS. 17, 18, and 19 show a second embodiment of the present invention. 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 are supported on a needle bed so as to be movable back and forth and are always resiliently held in an upper position, and a carriage is provided on a carriage that is movably installed on the needle bed and sequentially moves the knitting needles to a lower position. In a rolled knitting needle detection device that has a rolling member that rolls down and detects a relative relationship between the rolling member and the knitting needle that is rolled down by the rolling member, the knitting needle moves within a certain range below the needle bed, The retrieval plate has an elongated retrieval plate that is elastically spring-loaded in one direction of the movement, and the retrieval member is opposed to the knitting needle to be detected, and the retrieval member moves the retrieval plate as the knitting needle to be detected is pressed down. A needle selection device for a knitting machine, characterized in that a moving member is provided, and an electric switch for detecting the moving position of the search board is provided on the needle bed.