JPS6285057A - Carriage inching controller in knitting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application) The present invention relates to a carriage drive control device that enables the carriage of a knitting machine to be driven by operating the same switch.

(Prior art) Conventionally, when starting and stopping the carriage of a knitting machine according to the operator's will, the operator presses a start switch to start the carriage, and after making the required movement, the operator presses a start switch that is installed separately from the start switch. The carriage was stopped by pressing the stop switch, therefore the carriage was not driven.
In this case, it was necessary to operate the start switch and the stop switch separately.

(Problems to be Solved by the Invention) As mentioned above, in conventional knitting machines, the switch for starting the carriage and the switch for stopping the carriage were separately provided. When knitting a small section, a delay in stopping may occur, such as when stopping the knitting while visually checking the knitting state, resulting in the formation of extra stitches.

Therefore, in the present invention, the switch for starting and stopping the carriage is the same switch, and each time the same switch is operated, it is determined whether the signals sequentially output from the same switch are a start signal or a stop signal. The technical problem to be solved is to rotate the carriage by repeatedly outputting and stopping a drive signal to the carriage drive motor in accordance with the determined start signal and stop signal.

(Means for Solving the Problems) The technical means for solving the problems described above is a carriage rotation control device for a knitting machine in which a carriage, which is installed on a needle bed so as to be slidable left and right, is moved by a motor drive. a start/stop switch that is operated when starting and stopping the movement of the carriage and outputs an operation signal each time the carriage is operated; and a start/stop switch that outputs an operation signal each time the carriage is operated; Each time the output operation signal is input, the output and stop of the drive signal to the motor are repeated.
and a drive control section that rotates the carriage by C in accordance with the operation interval of the start/stop switch.

(Function) According to the above-described means, when the start/stop switch is operated, the operation signal is inputted to the drive control section. When the first operation signal output from the start/stop switch is input after the power is turned on, the drive control 2!1 section determines the operation signal as a start command signal and stores it in an internal start command circuit, Activate the carriage.

When the next operation signal is input, the drive control section resets the start command signal stored in the start command circuit, stops outputting the drive signal to the carriage drive motor, and stops the carriage.

Therefore, since the carriage repeatedly moves and stops depending on the operation interval of the start/stop switch, the carriage can be rotated as desired.

(Example) An example of the present invention will be described below with reference to the drawings. First, the main body of the knitting machine will be explained, and then the electric control circuit and the stitch control function will be explained.

The first view shows the knitting machine equipped with a carriage drive device from the front.
In FIG. 2, which is viewed from the side and from the side, a needle bed 2 in which a large number of knitting needles are arranged in rows in the left-right direction is fixed on a fixed base (table) 1 via a clamp body 3. A carriage 4 is mounted on the needle bed 2 so as to be slidable in the left and right direction,
On the upper surface of the carriage 4, an operating handle 5 having a gate shape and having a horizontal grip portion 5a on the upper part is mounted in an upright manner.

Next, a carriage drive device for reciprocating the carriage 4 in the left-right direction will be described. A fixing bar 6 that is elongated in the left-right direction is mounted on the fixing base 1, and a mounting piece 6a fixed to the front end of the fixing bar 6 is attached to the clamp It is fixed by body 3. At both left and right ends of the fixing bar 6, as shown in FIG. 2, a pair of columns 7 whose side faces are shaped like an abbreviated character are movable in the left and right direction by bolts and elongated holes, as shown in FIG. It is erected so as to be adjustable and in contact with both left and right ends of the 21 floor 2.

At the upper ends of the pair of pillars 7, mounting pieces 7a/ji extend forward, and on the lower surfaces of both clawed pieces 7a, guides are provided at a predetermined height from the upper surface of the carriage 4 and below. A support body 8 having a channel-shaped cross section and having a rail 8a is installed horizontally in the left-right direction. Inside the support body 8, there is a belt drive f! whose drive source is an AC reversible motor 9 such as a capacitor motor, for example. A l1 mechanism is installed internally.

'j'j;, At one end of the support 8 (the right end in Fig. 1), a drive guide wheel 11 connected to the output shaft of the reversible motor via a speed reduction mechanism is rotatably mounted inside. established,
A driven guide wheel 12 is rotatably installed inside the other end of the support 8. A drive belt 13, which is rotated forward and backward by the reversible motor 9, is stretched between the guide wheels 11 and 12.

The reversible motor 9 is housed in a motor case 14 fixed to one end of the support 8.

A control box 15 roughly formed on one side of the motor case 14 controls the rotation and stop of the reversible motor 9.

A control device is built in to control the reversal, etc., and to adjust the width of movement of the carriage 4 in the left and right direction together with the connecting body 16, which will be described next. is installed.

The support body 8 has a drive belt 1 disposed therein.
A carriage drive body 16 is mounted, which is connected to a part of the lower straight portion 13a of No. 3 by a belt connecting piece 17.

This carriage drive 16 is connected to the guide rail 8 of the support 8.
The needle bed 2 is reciprocally guided by the guide rails 8 at both ends thereof.
Two left and right outer guide rollers 18 that move along the outer surface (lower surface) of a are rotatably mounted around a horizontal roller shaft 19. Further, in the center of the carriage drive body 16, one intermediate guide roller 21 is located at an intermediate portion between the two outer guide rollers 18 and rotates along the inner surface (upper surface) of the guide rail 8a. It is mounted rotatably around the shaft 22.

At the lower end of the carriage driver 16, there is a t shown in FIG.
, J: A carriage connecting piece 24 that removably connects the sea urchin drive body 16 and the carriage 4 is rotated by a horizontally horizontal support bin 25 at a pair of left and right mounting pieces 24a formed at its upper end. It is movably mounted.

At the lower end of this carriage connection piece 24, the carriage 4
A spiral connecting portion 24b is formed with a connecting groove that fits into the upright portion 5b of the operating handle 5. This connecting part 24b
A protective piece 26 made of synthetic resin, rubber, etc. is fitted 4 along the connecting groove.

Therefore, the upright portion 5b of the operating handle 5 of the carriage 4
On the other hand, when the reversible motor 9 is operated in a state J3 in which the spiral connection portion 5b of the carriage connection piece 24 is fitted, the drive belt 13 is connected to the drive belt 13 via the motor output shaft, reduction rock structure, and drive guide pulley 11. is driven in forward and reverse directions. Then, the carriage drive body 16 and the carriage drive body 24 are integrally reciprocated in the left-right direction together with the drive belt 13, whereby the carriage 4 is moved along the needle bed 2 and the stitches are knitted.

In addition, as shown in FIG. 1, the knitting machine includes a yarn breakage detection device DT and a yarn breakage detection device f for detecting when the knitting yarn T is broken.
A tension applying device (not shown) is attached to apply a constant tension to the knitting yarn T just before itDT. The yarn breakage detection device DT is rotatably connected to the main body BS around the shaft portion 32A when the knitting yarn T to which a certain tension is applied by the tension applying device is supported by the knitting yarn support rod 31 so as to be able to pass therethrough. If the yarn sensing member 32 attached to the main body 88 is supported by the knitting yarn T and does not come into contact with the plunger LSP of the limit switch LS attached to the main body 88, if the knitting yarn T is If the yarn breaks due to the above reason, the yarn sensing member 32 loses support for the knitting yarn T, so it rotates counterclockwise, contacts the plunger LSP of the limit switch LS, and activates the limit switch LS. The structure is such that a thread breakage signal is output from the LS.

In addition, on the operation surface of the 1llI control box 15, as shown in FIG. A start/stop switch sS that is operated to display the left or right direction of movement of the carriage 4, and a direction display lamp DL that displays a display corresponding to the cause of the stop when an abnormality occurs during formation and the carriage 4 stops. , a mode selector switch MS that selects whether the IQ formation mode is continuous or single, a number of rows counter N that outputs a zero signal as well as an end signal when the number of rows is set and knitting of the set number of rows is completed, and a number of rows N that outputs a zero signal when knitting of the set number of rows is completed. The knitting width setting slide WS to be set is attached.

The direction indicator lamp DL includes a right direction indicator lamp DLR and a left direction indicator lamp DLL, and the direction indicator lamp DL includes a right direction indicator lamp DLR and a left direction indicator lamp DLL.
When the set ttcpu outputs the right movement direction display signal and left movement direction display signal of the carriage 4, and when the kitriage 4 stops abnormally and an abnormality display signal, etc. is output, the light is displayed.

Next, regarding the internal structure of the control box 15, FIG. 5 shows a partially cutaway front view of the main part, FIG. 6 shows a plan view of the same, FIG. 9 shows a schematic perspective view of the same, and FIG. We will proceed based on FIGS. 7 and 8, which are partial detailed cutaway views.

An output shaft 39 having an output gear 38 in the reduction gear mechanism 37 of the reversible motor 9 is configured to be rotated in forward and reverse directions according to the rotation of the reversible motor 9, and the rear end of the output shaft 39 is located inside the support 8. At the same time, its front end is projected forward of the motor case 14 of the motor 9. Note that the reversible motor 9 is housed in the housing 41 together with a knitting width stroke changing device B1, which will be described later.

As shown in FIGS. 5 to 9, the knitting width stroke changing device B1 adjacent to the left side of the reversible motor 9 is connected to the holding frame 7.
A frontage hole 73 located in front of the output shaft 39 of the reversible motor 9 is opened in the right end portion of the main plate portion 72 of the motor 1.
Through this opening hole 73, the drive gear 74 outputs the output @3.
It is provided at the front end of 9. A small gear A775 that meshes with the left side of the drive gear 74 is rotatably supported on a shaft 76 on the main plate portion 72 of the holding frame 71. 1-! l-ru drive sub [1 piece 1
-78 is rotatably supported on a shaft 79. , -1
A driven subblock 1-80 is rotatably supported by a shaft 81 at the Δ end of the main plate portion 72 of the holding frame 71.

A forward/reverse motion belt (82) having internal teeth 82Δ, which is a forward/reverse motion body, is hung between the driving subblock 1-78 and the driven subblock 1-80. The drive belt 1 is driven by the reversible motor 9.
It is rotated in the same direction as the forward and reverse rotation in step 3.

A guide rod 84 located in front of the lower side of the forward/reverse movement bell 1-82 is installed on the left and right side roots 83.83iJ of the holding frame 71. On the guide rod 84 is a position sensor (described later) 85R.

A pair of left and right knitting width setting slides WS with 85L.

The WSs are each slidably provided.

The knitting width setting slides ws and ws are as shown in Fig. 10.
The center piece of a substantially T-shaped printed circuit board 92 is fitted into the fitting hole 91 of the fitting protrusion 90, and the left and right side pieces of the printed circuit board 92 are held together by engaging pieces 93 and 93, respectively. The board 92 is placed on the knitting width setting slide WS. A position sensor 85R, 851, .

Further, on the lower side of the forward/reverse motion belt 82, as shown in FIG. When the permanent magnet 96 approaches the sensor 85R or 85L, the position sensor 85R or t8
A position signal (turn position signal) is output from 5L.

The upper left of the housing 41 of the control box 15 is equipped with the stage counter N that can count the number of reversals of the forward/reverse motion bell 1-82.
Inside the knitting width setting slide ws, a main board (not shown) etc. which are electrically connected to the printed boards 92 and 92 of ws are built in.

When the control box 15 slides the 1-1 rigidity 4 in the left and right direction, the reversible part 9 is driven, and the drive bell! ~13 is rotated and
As the drive belt rotates, the forward/reverse motion belt 82 is rotated in a simulated manner. Then, when the permanent magnet 96 of the support member 97 is located on either position sensor 85F<, which seems to be 85L, which can slide the knitting width setting, the same magnet 96
Position sensor 85R1 or ε35 that senses the magnetic field of
1- generates a position signal, and based on this position signal, an electric control circuit, which will be described later, is activated, and the rotation of the reversible motor 9 is reversed. By repeating this process, the needle 4 is reciprocated in the left-right direction along the needle bed 2.

However, the knitting width setting slides ws and ws (iZ ii
By appropriately moving the '7 in the left-right direction, the reversal timing of the reversible motor 9 is changed, and the stroke of the C-1 trige 4 is changed to 4i% in accordance with the course width of the knitted fabric.

Next, regarding the Nil electric control circuit of this example, the 11th
This will be explained according to the diagram.

As shown in the figure, the main control unit is Mike [Cobb] Sezza CP.
As an input signal to the microprocessor CPU, the permanent magnet 96 is configured as a position detection sensor, f85R.
Or when approaching 851, position detection sensor 85R
Or the position signal output from 851-, that is, the turn position signal for carriage 4 to turn to the right or left, the start stop operated when starting the movement of carriage 4 and when stopping the movement of carriage 4. An operation signal from the switch SS, a mode signal from the mode selector switch MS for setting whether the knitting is performed in a single row or in continuous knitting, and a number of rows when the number of knitting rows set by the number of rows N is completed. There is a set knitting stage end signal (zero signal) output from the total number N, a thread breakage signal output from the limit switch LS of the thread breakage detection device DT, and an overcurrent signal output from the overcurrent detection circuit OC. .

On the other hand, the output of the microbubble o (2・nsaCl” LJ (
As No. 31, the a that is output in the above-mentioned iri Gakuage-Yu 5]
Rotation drive signal, 11 rotation drive and stop signal'';
・Direction indicator lamp DI- that displays the moving direction of Rigi 4
Right indicator lamp D i R, left indicator lamp D I-L
[There is a right direction display signal and a left direction display signal g to be output.

Next, is it too much? The configuration and operation of the li current detection circuit Oc will be explained. Power supply supplied to the reversible Tanabata 9, e.g. ΔC
100 por l-50112 dust, < tit 60
l1l) Current detection resistor 1 inserted in series in the input circuit
The primary 5 wires of the isolation transformer TS are connected to both ends of S, and the reversible current generated in the current detection resistor R8 is transferred to the electric current corresponding to the drive current of the transformer 9, f''f: through the drop. 1
The secondary voltage induced in the secondary winding of the isolation transformer TS is supplied as a secondary voltage to the rectifier BR1'? : Rectification Zaru. 5011z or 60Hz rectified by the same rectifier B1
The pulsating current is divided by resistor R4 and resistor R3, and the noise generated by the reversible switch 9 and the power line noise are bypassed by capacitor c1 and applied to the inverting input terminal of comparator A. On the other hand, the control power supply voltage VCC is applied to the non-inverting input terminal of the inverter △.
2 and 91 current j-[, that is, the magnitude is compared with the pulsating current voltage corresponding to the drive nJEt flow of the reversible [-ta] 9 applied to the reversible input horn terminal, and the pulsating current 1 corresponding to the same drive current is When (1) becomes high, a reference voltage +J[l is applied for determining whether the reversible current (1FIJ) of the reversible terminal 9 is an overcurrent.

Therefore, when the pulsating current voltage corresponding to the drive current of the reversible [-9] becomes higher than the base 11 (voltage ff. J:), an overcurrent signal is output as a pulse from the comparator, and the The total time of this overcurrent signal in one course of knitting width (summation time - total number of inputs of overcurrent signal/2 x "power supply frequency") is input to microprocessor C in advance. If the time exceeds the time set in PtJ, it will be determined that overload is occurring.

When the thread breakage signal is output from the thread breakage detection device L, the CPU determines that there is a knitting abnormality and returns to the reversible Tanabata 9. The output of the anti-go vehicle driving signal is outputted to stop the vehicle, and a stop signal (stop signal) is outputted to immediately stop the vehicle.

Next, the operation of this embodiment will be explained according to the control y+1 flow It-1 shown in FIG. The control flowcharts 1 to 1 shown in FIG. 12 are reversible and control operations of the star 1 to 1 header switches SS [--control by the microprocessor CPU related to the operation of step 9]] controller 1
It is.

After the power is turned on to the electric control circuit shown in FIG. 11 and the microprocessor CPU is initialized, the microphone 1,
In the above-mentioned star 1 to step 1 head switch SS (in control flowcharts 1 to 1, it is written as the S/S key).

) is on or not [1i.

When it is confirmed that the start/stop switch SS has been operated and turned on, the key ion flag is set to 1 in step ST2 and the key ion flag is set to 1. In step ST3, the start/stop switch SS is checked for the elapsed diptering time. and move on to the next sujitsubu. Next step ST
At step 4, J3 outputs a drive signal for rotation to the right or rotation to the left to the holder 9 to move the sharpness 4.

Next, in step ST5, it is determined whether or not the key ion flag is set. If it is determined that the key ion flag is set, it is determined in the next step ST6 whether or not the start/stop switch SS is off. On the other hand, if it is determined in step ST5 that the key ion flag is not set, the process directly proceeds to step ST9, which will be described later. If it is determined in step ST6 that the start/stop switch SS is off, the key ion flag is set to O in step ST7, the chattering time of the start/stop switch SS is held to elapse in step ST8, and the process moves to the next step ST9. If it is determined in step ST6 that the start/stop switch SS is not off, the process returns to step ST5.

Next, in step ST9, the start/stop switch SS
If it is determined that it is not on, return to step ST5 and perform steps ST5 to ST9.
While repeating the routine, if it is determined that the start/stop switch SS is on, this operation signal is determined to be a stop command signal, and the output of the drive signal to the reversible motor 9 is stopped in the next step 5TIO.

In the next step STI 1, after waiting for a time until a stop signal is output to the reversible motor 9, in step 5T12, a pulsating current is applied to the reversible motor 9 for a predetermined period of time, the brake is applied once, and the carriage 4 is immediately stopped. let In the next step STI 3, it is determined whether the start-stop switch SS is off, and if it is determined that it is off, in step 5T14, the start-stop switch SS is waited for chattering time to elapse, and then the step STI
The routine returns to step ST1 to ST1/I and is repeated.

As described above, each time the operation signal from the start/stop switch SS is input, the microprocessor CPU determines whether the input operation signal is a start signal or a stop signal, and adjusts the input interval of the operation signal. It performs so-called drive control, starting and stopping depending on the situation.

(Effects of the Invention) As described above, according to the present invention, it is possible to arbitrarily drive the 11 keys by operating the same switch, so when knitting a small section, for example, 1 key! This has the effect that the rigidity can be stopped arbitrarily and accurately, and required stitches can be knitted.

[Brief explanation of drawings]

Figure 1 is a front view showing the entire knitting machine, Figure 2 is a side view of the same, Figure 3 is a front view showing the main parts, Figure 4 is an external view of the control box, and Figure 5 is a view of the control box of the knitting machine. 6 is a plan view of the same, FIG. 7 is a partially cutaway front view showing the support member together with the drive mechanism of the forward and reverse movement belt, and FIG.
9 is a perspective view of the road body shown in FIGS. 5 and 6, FIG. 10 is an exploded perspective view of the knitting width stroke adjusting member, FIG. 11 is an electrical control circuit diagram, and FIG. is a control flow chart. 2... Needle bed 4... Carriage 9... Reversible motor 15... Control box

Claims (1)

[Scope of Claims] A knitting machine in which a carriage, which is slidably disposed on a needle bed from side to side, is moved by motor drive, wherein the carriage is operated to start and stop movement. a start/stop switch that outputs an operation signal each time the start/stop switch is operated; and a start/stop switch that outputs and stops a drive signal to the motor each time the operation signal is output from the start/stop switch when the start/stop switch is operated. 1. A carriage inching control device for a knitting machine, comprising: a drive control section that repeatedly inclines the motor and increments the carriage in accordance with an operation interval of the start/stop switch.