JP2938141B2 - Loom beam setting method in warping machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION (Field of Industrial Application) The present invention relates to a beam setting method for a loom in a warping machine, and more particularly, to a method for straightening a loom beam in which a center of a beam length is different from a center between flanges. It is related to the improvement of the technology used for warping machines.

(Prior art) When a conventional loom beam is mounted on a warper, after removing a full-wound beam from the warper, the distance between a pair of arms of the warper is increased, and the loom beam to be mounted next time is adjusted. The warper is carried into the warper, and the warp arm is positioned close to the left and right adapters attached to both ends of the barrel of the loom beam, positioned closer to each other, and then the warper arm is moved upward. The loom beam is lifted and held by rotating the loom beam.The connecting machine connected to the driving climate is connected to the end face of the adapter, and the arm of the warping machine is moved left and right to move the loom beam in the holding state. The work of mounting the loom beam is performed in such an order that the center between the flanges matches the machine center of the warping machine. This work of aligning the beam center with the machine center is called centering.

However, with such a conventional in-process method, it takes time to attach the loom beam, and during that time, it is necessary to stop the warping machine, so that the operating rate of the warping machine necessarily decreases, When the warping machine is provided with a sizing machine or when tension is applied to the warp set in the warping machine, there is a disadvantage that the quality of the warp is reduced accordingly. In addition, there is a disadvantage in that the operation work is complicated, and thus an operator's operation error easily occurs.

(Summary of the Invention) An object of the present invention is to shorten the stoppage time required for the weaving of a loom beam, improve the operation rate of a warping machine, prevent a decrease in quality, and further facilitate the weaving operation. is there.

For this purpose, in the present invention, prior to setting the loom beam on the warper, a predetermined dimension other than the beam length of the loom beam is also measured, and the center between the machine center of the warper and the flange of the loom beam is measured. The point is that a pair of arms of the warper is previously positioned so as to match. As the predetermined dimension, for example, a deviation between a machine center (MC) of a warper and a beam center (BC) of a loom beam, that is, a center deviation ΔL is measured.

(Embodiment) A first embodiment of the method of the present invention will be described with reference to FIGS. This automatically measures a predetermined size of the loom beam placed on the setup table at the setup table provided apart from the warping machine, and based on the measurement result, preliminarily sets the beam on the setup table. The loom beam is positioned so as to face the warper so that the center BC matches the machine center MC, and when the loom beam is carried in, a pair of arms of the warper is moved to a predetermined position based on the measurement result. This is an example in which the loom beam is moved to a position, then the loom beam positioned is moved in parallel from the setup table, and is directly carried into the positioned arm.

In FIG. 1, a pair of arms 21 is provided on both sides of a machine center MC of the warping machine 2 on both sides. A setting stage 1 is provided on the downstream side (seeing the warp flow), and while the warp is wound around the loom beam previously mounted on the warper 2, the warping is performed next. The loom beam 10 to be mounted on the loom 2 is placed on the setup table 1. At this time, the center between the flanges of the loom beam 10 placed on the setup table 1,
In other words, it is assumed that the beam center BC and the machine center MC of the warper are shifted by, for example, the deviation ΔL.

The barrel 11 of the loom beam 10 has a pair of left and right flanges 12
Is provided, and the interval can be changed. Adapters 13 are attached to both ends of the barrel 11. Further, as an apparatus for automatically measuring a predetermined dimension of the loom beam 10 placed on the setup table 1,
On the setup table 1, motors M1, M2, and M3 and limit switches LS1, LS2, and LS3 are provided so that each motor does not rotate via a feed screw. A first limit switch LS1 oppositely mounted on the end face of one of the adapters 13 is driven by a first motor M1 to move on the setup table 1 in a beam width direction (hereinafter simply referred to as “width direction”). ) Can be moved. Similarly, the third limit switch LS3, which is provided opposite to the end face of the other adapter 13 so as to be able to abut from the outside, can be moved in the width direction by being driven by the third motor M3.

Further, a second limit switch LS2, which is provided between the two flanges 12 so as to be able to abut against them from the inside, can be driven by the second motor M2 to similarly move in the width direction.

FIG. 2 shows the dimensional relationship between the loom beam 10 mounted on the setting table 1 and each part of the apparatus shown in FIG. B is the distance between the flanges 12 of the loom beam, B1 is the distance from the machine center MC to the inner surface of one of the flanges 12 (left side in the drawing), and B2 is the other from the machine center M (see FIG. Middle right) flange
It is the distance to the inner surface of 12. A is the distance between both adapter end faces. P1 is the position of limit switch LS1 at the origin of motor M1, P2 is the position of limit switch LS3 at the origin of motor M3, and F is the distance between P1 and P2. F1 is the distance between P1 and one adapter end face, F2 is the distance between P2 and the other adapter end face, F3
Is the distance between one adapter end face and the machine center MC, and F4 is the distance between the other adapter end face and the machine center MC.

Next, the operation will be described with reference to FIG. 3. In the present embodiment, the center deviation ΔL is included as the predetermined dimension related to the loom beam 10, and the center deviation ΔL is automatically measured by the limit switch LS2. By moving the setup table 1 in the width direction based on the result, the beam center BC automatically matches the machine center MC in advance. In the drawings, reference numerals and detailed descriptions of elements whose operations are obvious are omitted. In the initial state, the limit switch LS2 is located at the machine center MC.

When the command button 41 is pressed, the first flip-flop
42 is set, and the first counter 43 is activated by its output. At the same time, the switch connected to the forward rotation power supply closes, the second motor 2 starts forward rotation, and the limit switch LS2 moves to one flange toward the machine center MC.
Start moving from. The rotation of the motor M2 is output in the form of pulses by the attached encoder EN,
Counter 43 counts.

The limit switch LS2 that continues to move eventually comes into contact with the inner surface of one of the flanges 12. When the first flip-flop 42 is in contact with the inner surface of one of the flanges 12, the output from the limit switch LS2 resets the first flip-flop 42, and the output from the Q terminal opens the switch connected to the forward power supply. The motor M2 stops normal rotation, and the first counter 43 also stops operating. At this time, the count value of the first counter 43 is B1 (correctly, a value corresponding to the distance B1; the same applies hereinafter).

Before the first flip-flop 42 is reset, the second signal is output by the output signal from the limit switch LS2.
And the second counter 46 is activated by the output from the Q terminal. In addition, the switch connected to the reverse rotation power supply is closed by the output from the Q terminal, the motor M2 starts reverse rotation, and the limit switch LS2 now starts moving toward the other flange. During this time, the second counter 46 counts the output pulses of the encoder EN.

The limit switch LS2 that has continued to move eventually comes into contact with the inner surface of the other flange. At this time limit switch
The output from the LS2 resets the second flip-flop 44, and the output from the Q terminal opens the switch connected to the reverse power supply, and the motor M2 stops reverse rotation.
The operation of the second counter 46 also stops. The second at this time
The count value of the counter 46 becomes B.

At the same time, the first and second counters 43 and 46 stop the counting operation, and output the respective count values B and B1 to the first computing unit 47, and the computing unit 47 receives them (B / 2−B1). = ΔL is calculated and output. Further, (B-1B) = B2 is output as a preset value of the subtraction counter 49, and in accordance with this output, the third flip-flop 48 is set, and the subtraction counter 49 is preset. The switch connected to the power supply for normal rotation is closed by the output from the third flip-flop 48, the motor M2 starts normal rotation again, and the limit switch LS2 starts moving toward the position corresponding to the origin of the motor M2. By inputting the output pulse of the encoder EN, the third flip-flop 48 is reset when the value of the subtraction counter 49 becomes 0, so that the motor M2 stops normal rotation, and the limit switch LS2 is moved to the position corresponding to the origin. arrive.

Next, the limit switches LS1 and LS3 determine the value of F3, ie, F3 ', assuming that the loom beam 10 is carried into the warping machine 2 with the beam center BC coincident with the machine center MC, and F4 at that time. , Ie, F4 '. Since both are substantially the same in their action,
Hereinafter, the operation of the limit switch LS1 will be
This will be described with reference to the drawings.

The limit switch LS1 is initially located at P1. When the command button is pressed, the fourth flip-flop 52 is set, and the third counter 53 starts operating. The switch connected to the power supply is closed by the output of the fourth flip-flop 52, and the first mode M1 starts normal rotation. Then, the limit switch LS1 starts moving toward one of the adapters, and the third counter 53 counts the output pulses of the encoder EN. By outputting a signal when the limit switch LS1 contacts the adapter, the fourth flip-flop 52 is reset, the power switch is opened, and the motor M1 stops normal rotation. Also, the third counter
53 stops the counting operation and outputs the count value F1 to the second computing unit 54. After that, the motor M1 reverses and the limit switch LS1 returns to P1.

The limit switch LS3 is also driven by the same electric circuit as the limit switch LS1, and outputs the measured value F2 to the second calculator 54.

The second computing unit 54 receives the output .DELTA.L from the first computing unit 47 and the outputs F1 and F2 from the third counter 53, performs the following computation, and converts the results F3 'and F4' into a warper. 2 to the controller.

F3 = F / 2−F1 F3 ′ = F3 + ΔL F4 = F / 2−F2 F4 ′ = F4−ΔL The fourth motor shown in FIG. 1 based on the center deviation ΔL obtained by the first calculator 47 will now be described. By driving M4 to move the setup table 1 in the width direction so that the center deviation ΔL becomes 0, BC of the loom beam placed on the setup table 1 is matched with the machine center MC.

As a result, the loom beam 10 is centered in advance on the setting table 1 before being carried into the warper 2.

Meanwhile, the warping machine 2 moves the pair of arms 21 independently in the width direction by the controller 61 via the motor 63 as shown in FIG. 5 and FIG. And rotate upward.

That is, the pair of frames 67 are slidably provided on the support shaft 69 via the bearing 68, and are further screwed with feed screws 71 connected to the motor 63, respectively. A pair of arms
21 is rotatably supported by the frame 67 and has one end connected to the rod of the air cylinder 765. Loom beam 1
The connecting machine 73 for rotating and driving the loom 0 has a loom beam 10 of 1
The frame 67 is provided at a position facing the adapter 13 when being held by the pair of arms 21, and is movable in the width direction by the air cylinder 75.

When the loom beam 10 is replaced, that is, when the fully-wound loom beam whose winding has been completed is removed from the warping machine 2, the values F3 and F4 obtained by the second calculator 54 are used for the warping machine. Automatically or manually input to the controller 61. Based on these values, the controller 61 drives the motor 63 to move the pair of arms 21 to positions away from the machine center MC to F3 and F4, respectively. As a result, the pair of arms 21 is positioned at a position corresponding to each adapter 13 of the loom beam 10 when the arm 21 is carried in with the beam center BC aligned with the machine center MC.

Of course, inputting only the measurement result to the controller 61
The values F3 and F4 may be calculated by 61.

Next, the loom beam 10 is rolled, moved and placed on a carrier (not shown) provided so as to be able to reciprocate in the flow direction of the warp between the setup table 1 and the front of the warper 2, and the carrier is arranged. Machine 2
By moving the loom beam 10, the loom beam 10 is carried in a state corresponding to the position of the arm 21 after the positioning is completed.
In this embodiment, since the loom beam 10 positioned earlier on the setup table 1 is translated by the carrier, the adapter 13 of the loom beam 10 can be easily brought into the pair of arms 21 and carried in. Can be. Then each air cylinder
As the rod 65 extends the rod, the pair of arms 21 rotate upward, lift and hold the loom beam 10, and the operation of the air cylinder 75 connects the connecting machine 73 to the adapter 13 to complete the mounting. .

In the above embodiment, a predetermined dimension of the loom beam 10 is automatically measured on the setup table 1, a predetermined dimension of the arm 10 is further measured, and the positioning positions F3 and F4 of the arm 21 are calculated. However, by manually measuring the dimensions and calculating F3 and F4, and inputting the calculated F3 and F4 to the controller 61 of the warper 2 during beam replacement, the pair of arms 21 May be moved to the position.

Further, in the embodiment, before the loom beam 10 is replaced, the beam center BC and the machine center MC are positioned so as to coincide with each other. However, the present invention is not limited to this. After moving once, the loom beam 10 may be moved in the width direction and positioned so as to correspond to the arm 21 positioned.

At this time, the loom beam 10 can be easily positioned by using the correction table 3 as shown in FIG. 1, FIG. 7, and FIG.

That is, it is provided with a pantograph 83 which is provided so that the center thereof coincides with the machine center MC and which expands and contracts by the rotation of the motor 81, and a pair of movable tables 85 which are provided so as to be movable in the width direction. The pantograph 83 has contact pieces 86 at both ends, and furthermore, each rotating part of the panda graph 83 is screwed into a plurality of feed screws 87, 89 having different screw directions rotated in the same direction by a motor 81. It is connected to a rat 91 via a pin 93.

After the loom beam 10 is rolled and placed on the moving table 85, the motor 81 is driven to extend the panda graph 83. Each contact piece
86 moves by the same amount from the machine center MC, and first one of the contact pieces 86 comes into contact with the inner surface of one flange 12. Thereafter, the loom beam 10 is moved together with the movable base 85 by the contact piece 86, and stops the motor 81 when the other contact piece 86 comes into contact with the inner surface of the other flange 12 in due course. As a result, the loom beam 10 is placed in a state where the beam center BC coincides with the machine center MC, in other words, at the position corresponding to the pair of arms 21 after positioning.

The expansion and contraction of the panda graph 83 is not limited to the configuration using the motor 81 and the feed screws 87 and 89, but may be performed by any one of the rods of the two air cylinders 95 connected at the machine center MC as shown in FIG. The moving parts may be connected via the pins 97.

According to the invention described above, a predetermined dimension related to the loom beam is measured before the loom beam is carried in, and at the time of carry-in, the arm of the warping machine is moved based on the measured value, and the beam center is set at the center of the machine base of the warp machine. Both ends of the barrel of the loom beam are assumed to have been matched.Specifically, it is positioned at the position corresponding to both adapters, so when replacing the loom beam, the adapter at both ends of the barrel corresponds to the arm after positioning The beam can be easily mounted simply by performing the above operation.

Therefore, the stoppage of the warper at the time of beam replacement is short, and the operation rate of the warper is improved accordingly. In addition, even when the warping machine is provided with a sizing machine or when tension is applied to the warp set in the warping machine, the quality of the warp does not deteriorate.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an example of an apparatus for practicing the present invention, FIG. 2 is a plan view showing the dimensional relationship of each part of a loom beam, and FIGS. 5 and 6 are a front view and a side view showing one example of a warper used in the present invention, and FIGS. 7 to 9 are schematic side views of another example embodying the present invention. LS1-3 Limit switch M1-4 Drive motor 1 Setup table 2 Warping machine 3 Correction table 10 Loom beam BC Beam center MC Machine center B: Flange spacing

Claims (4)

(57) [Claims] When setting a loom beam in which a beam length center and a center between flanges are different from each other on a warper, a predetermined dimension of the loom beam is measured before being carried into the warper, and based on the measured value. Calculate the positions of both ends of the barrel of the loom beam when the center between the flanges of the loom beam (beam center BC) and the machine center of the warping machine (machine center MC) match, At the time of loading, the pair of arms of the warper is moved and positioned in the width direction of the warper based on the calculation result, and the loom beam is positioned so as to correspond to the position of the positioned pair of arms. And transporting the pair of arms upward to support the loaded loom beam. 2. The measurement of the predetermined dimension includes an operation of calculating a deviation between the center of the beam and the center of the machine. The beam of the loom is adjusted based on the value of the center deviation (ΔL) obtained as a result of this operation. The method according to claim 1, wherein the machine is moved in the width direction and positioned. 3. The method according to claim 1, wherein the positioning of the loom beam is performed on a setting table provided at a distance from the warper. 4. The method according to claim 1, wherein the positioning of the loom beam is performed on a correction table provided at the loom beam loading position.