JPH05165508A - Weaving machine control method utilizing external storage medium - Google Patents

Abstract

PURPOSE:To prevent an erroneous change of control data of a weaving machine. CONSTITUTION:Control computers Cs, Cr, Cd and Cy for controlling a driving system of each part of a weaving machine are connected to main control computers Ce, Cg through a serial transmission path, and the main control computers Ce, Cg transmit control data to the control computers Cs, Cr, Cd and Cy through the serial transmission path and communication controllers Fm, Fs, Fr, Fd and Fy. To the main control computers Ce, Cg, input setting devices 20e, 20g are connected, and in the input setting devices 20e, 20g, a card connecting port 20a is provided. In the case memory cards 26, 26A are not subjected to inserting connection to the card connecting port 20a, the main control computers Ce, Cg inhibit rewriting of data executed by the input setting devices 20e, 20g.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loom control method using an external storage medium.

[0002]

2. Description of the Related Art In a loom equipped with a control computer that controls the operation of the loom based on control data, the control data input to the control computer is rewritten as necessary. In JP-A-63-21951 and JP-A-63-21953, a warp yarn feeding device, a woven fabric winding device, and a machine base are based on the woven fabric conditions such as yarn type, weaving width, weaving density, and fabric structure. A method of setting weaving conditions in a rotating device or the like is disclosed. That is, a large number of weaving conditions are preset and set in the control device for each of the weaving fabric conditions, and an appropriate weaving condition is automatically selected from the many weaving conditions based on the input of the weaving fabric conditions. As a result, proper weaving conditions can be set in a short time without depending on the skill and experience of the operator.

[0003]

The weaving condition automatically selected in such a weaving condition setting method is an average value obtained from many past experiences, and even under the same weaving condition, individual weaving conditions are obtained. At the time of formation, it may be necessary to change the automatically selected weaving conditions and set more appropriate weaving conditions. Therefore, in a loom equipped with a control computer that controls the operation of the loom based on the control data, an input setting device for changing data is attached, but unnecessary data rewriting by the careless operation of this input setting device. There is a risk that

The present invention uses an external storage medium such as a memory card, which is advantageous in controlling a large number of looms, as disclosed in Japanese Patent Laid-Open No. 1-285050, and allows accidental rewriting of data. The purpose is to prevent.

[0005]

Therefore, according to the present invention,
The control data rewriting by the input setting device is prohibited in the communication non-connection state between the control computer and the external storage medium to which the control data is input by the input operation of the input setting device.

[0006]

When the control computer and the external storage medium are not electrically connected, the output signal by the data input operation in the input setting device is invalidated, and the setting control data in the control computer is not changed. .. When the control computer and the external storage medium are electrically connected, the output signal by the data input operation in the input setting device is validated, and the setting control data in the control computer is changed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a jet loom will be described below with reference to FIGS.

M shown in FIG. 1 is a loom drive motor, and the loom drive motor M is controlled by the main control computer (Ce, Cg). Reference numeral 1 is a feed motor independent of the loom drive motor M. The feed motor 1 drives the warp beam 2, and the warp T fed from the warp beam 2
Is guided to the heddle 5 and the reed 6 through the back roller 3 and the tension roller 4. The woven fabric W is wound around a cross roll 10 via an expansion bar 7, a surface roller 8 and a press roller 9.

The tension roller 4 is the tension lever 1
It is attached to one end of the tension lever 11
A predetermined tension is applied to the warp yarn T by the tension spring 12 attached to the other end of the warp yarn. The tension lever 11 is rotatably supported at one end of the detection lever 13, and the load cell 14 is provided at the other end of the detection lever 13.
Are connected. The warp tension is transmitted to the load cell 14 via the tension roller 4, the tension lever 11 and the detection lever 13, and the load cell 14 sends out an electric signal according to the warp tension and outputs it to the control computer Cs.

The delivery control computer Cs controls the rotation speed of the delivery motor 1 based on the comparison between the warp tension set as an input and the detected tension grasped by the input signal from the load cell 14. This rotation speed control controls the warp tension during normal operation. Further, the feed-out control computer Cs feedback-controls the rotation speed of the feed-out motor 1 based on the rotation-speed detection signal from the rotary encoder 1a incorporated in the feed-out motor 1.

The surface roller 8 is operatively connected to a winding motor 15 independent of the loom drive motor M.
The take-up motor 15 is controlled by the take-up control computer Cr, and the take-up control computer Cr is incorporated into the take-up motor 15 and is a rotary encoder 15.
The winding motor 1 based on the rotation speed detection signal from a.
The rotation speed of 5 is feedback-controlled.

The weft inserting nozzle 16 draws the weft from the winding type weft measuring and storing device 17. Weft insertion nozzle 1
The opening / closing of the electromagnetic valve 18 for supplying fluid to the nozzle 6 is controlled by the weft insertion control computer Cy. The drive of the weft measurement storage device 17 is controlled by the length measurement control computer Cd.

The main control computer (Ce, Cg), the feeding control computer Cs, the winding control computer Cr, the length measuring control computer Cd and the weft insertion control computer Cy are all communication control devices Fm, Fs, F.
r, Fd, and Fy are connected. Each communication control device F
m, Fs, Fr, Fd, and Fy are serially connected by the transmission path L.

Control computers (Ce, Cg), C
Output signals of the rotary encoder 19 for detecting the machine base rotation angle are input to s, Cr, Cd, and Cy. Each control computer (Ce, Cg), Cs, Cr, Cd, Cy performs drive control based on the angle detection information from the rotary encoder 19, and the main control computer (Ce, Cg) performs serial transmission path in addition to drive control. Control of transmission of control data is performed via L.

Input setting devices 20e and 20g are connected to the main control computers (Ce and Cg). The input setting device (20e, 20g) is provided with a card connection port 20a. The memory card 26 in the card connection port 20a,
By inserting and connecting 26A, the main control computer (Ce, Cg) and the memory cards 26, 26A are electrically connected.

FIG. 2 shows a plurality of looms Le, Lg (e, g =
1, 2, 3, ..., e ≠ g), main control computer C
e, Cg and input setting devices 20e, 20g are shown. The input setting devices 20e and 20g are the transfer data selection device 21, the transfer command device 22, the data rewriting device 23, and the display device 2.
4 and the comparison command device 25.

The transfer command device 22 is a main control computer C.
One of the transfer from e and Cg to the memory card 26 and the transfer from the memory cards 26 and 26A to the main control computers Ce and Cg is selected and instructed. In the memory Me of the main control computer Ce, a working weaving data group E such as warp beam diameter, warp breakage, weft insertion error, etc. is taken in and stored as detection data from the detector, and
Warp yarn tension data, warp yarn discharge speed, winding speed and other warp yarn discharge data group A, weft insertion length, weft insertion start timing, weft insertion end timing and other measurement data group B, weft insertion nozzle injection start timing, injection A weft insertion data group C such as stop timing, a machine rotation angle position at startup, and a start data group D such as machine rotation angle position when the machine is stopped are fetched and stored by an input setting operation of the data rewriting device 23. There is.

As shown in FIG. 2, the warp feed-out data group A composed of the warp feed-out data A (1), A (2) ... A (i) is composed of the addresses n ₁ , n ₂ ...・ ・
n it is stored in the _i, measurement data B (1), B (2 ) ···
Measurement data group B composed of B (j) has address n
_{i + 1} , _{ni + 2} ... ni _{+ j} , weft insertion data C (1), C
(2) The weft insertion data group C composed of C (k) has the start data D (1) at the addresses _{ni + j + 1} , _{ni + j + 2} ... _{ni + j + k.} , D (2) ... D (p) has start data group D at addresses n _{i + j + k + 1} , n _{i + j + k + 2} ... n
It is stored in _{i + j + k + p} . The working weaving data group E is stored at an address other than the above.

Similarly, in the memory Mg of the loom Lg, a warp feed-out data group A'composed of warp feed-out data a (1), a (2) ...
_1, n ₂ are stored in the · · · n _i, measurement data b
(1), b (2) ... A (j) has a length measurement data group B'at addresses n _{i + 1} , n _{i + 2} ... N _{i + j} , and weft insertion data c ( 1), c (2), ..., C (k), the weft insertion data group C ′ has addresses n _{i + j + 1} , n _{i + j + 2,} ...
_{At i + j + k} , a starting data group D'composed of starting data d (1), d (2) ... d (p) has addresses n _{i + j + k + 1} ,
n _{i + j + k + 2} ... N _{i + j + k + p} . The working weaving data group E'is stored in an address other than the above.

Of the looms Le and Lg that are weaving the same woven fabric, if only the operation rate of the looms Lg is abnormally low, the looms L
The data group A ′, B ′, C ′, D ′ of g does not match the data group A, B, C, D of the loom Le showing normal operating efficiency,
That is, the data groups A, B, C, which are appropriate as the data group of the loom,
D may not be adopted. Therefore, the data groups A ′, B ′, C ′, D ′ of the loom Lg and the data groups A, B,
A check for a match or a mismatch with C and D is performed using the memory card 26A.

First, the memory card 26A is inserted and connected to the input setting device 20e of the loom Le which shows a normal operation rate.
The main control computer Ce enters the transfer standby state in response to the insert signal accompanying this insert connection. Based on the transfer command issued by operating the transfer command device 22 and the transfer data group specified by operating the transfer data selection device 21, the main control computer Ce transfers the specified transfer data groups A, B, C, D from the memory Me to the memory card. 26A. By this transfer, the warp feed-out data group A of the main control computer Ce
(1), A (2) ··· A (i) is transferred to the address m _1, m ₂ ··· m _i of the memory card 26A. Next, the length measurement data group B (1), B (2) ... B (j) are stored in the memory card 26A.
Address _{m i + 1, m i +} 2 ··· m i + to _j, weft insertion data C (1), C (2 ) ··· C (k) the address m _{i + j + 1,} m
_{i + j + 2}・ ・ ・ m _{i + j + k} to start data D (1), D (2)
..D (p) is addresses m _{i + j + k + 1} , m _{i + j + k + 2} ...
transcribed to _{mi + j + k + p} .

The control data A, B, C, D of the loom Le is recorded.
The memory card 26A is stored in the input setting device 2 of the loom Lg.
After inserting into 0g, for comparison command operation of the comparison command device 25
The main control computer Cg is on the memory card 26A side.
Stored data A (i), B (j), C (k), D (p)
Storage data a (i), b (j), c on the side of the loom Lg
(K) and d (p) are compared. This comparison is memory
Address m on the card 26A side ₁, M₂~ M_{i + j + k + p}And weave
Address n on machine Lg side₁, N₂~ N_{i + j + k + p}One-to-one with
Correspondence is carried out sequentially, and the mismatch data is
Is displayed on the display device 24. For example, the ad of the loom Le
Less n_{i + 2}Data b (2) of the memory card 26 address
Sum_{i + 2}If it does not match the data B (2) of the
Computer Cg has address n_{i + 2}And the data b (2)
It is displayed on the display device 24.

Such defective data display means a setting error of the control data in the loom Lg, and it can be specified that this setting error is the cause of the abnormal lowering of the operating efficiency of the loom Lg. Therefore, if the control data b (2) displayed as defective data is rewritten to the proper control data B (2) by operating the data rewriting device 23, the control data of the loom Lg becomes the proper control data of the loom Le. In agreement, the abnormal reduction in the operating rate of the loom Lg is resolved.

As shown in FIG. 3, the rewriting permission program X ₀ is written in the memory card 26A, and the rewriting permission judgment program Y ₀ is written in the memories of the main control computers Ce and Cg. The main control computers Ce and Cg perform the above-mentioned rewriting based on the rewriting permission judgment program shown in the flowchart of FIG.

That is, when the memory cards 26 and 26A are not inserted and connected to the input setting device 20g, the main control computer Cg enters the non-rewritable mode and the input setting operation of the input setting device 20g is performed. The data rewrite command is invalidated. When the memory card 26A is inserted and connected to the input setting device 20g, the main control computer Cg reads the rewriting permission program in the memory card 26A based on the card insertion signal. Based on this reading, the main control computer Cg enters the rewritable mode, and the data rewriting of only the rewritable contents specified by the rewritable program is validated. In this embodiment, the above-mentioned rewriting of the mismatched data b (2) is permitted, and only the rewriting of the data b (2) specifying the address n _{i + 2} to the data B (2) is possible. Therefore, erroneous data changes will not be made by an inadvertent rewriting operation of the input setting device 20g.

The memory M of the main control computer Ce
The input of the data groups A, B, C, D and E to e and the input of the data groups A ′, B ′, C ′, D ′ and E ′ to the memory Mg of the main control computer Cg are all data rewriting permission programs. Is performed using the memory card on which is written.

The present invention is, of course, not limited to the above-mentioned embodiment, and data rewriting may be permitted only by a card insertion signal accompanying the insertion connection of the memory card, for example.

[0028]

As described in detail above, according to the present invention, the control data rewriting by the input setting device is prohibited in the communication non-connection state between the control computer and the external storage medium. When the storage medium is not electrically connected, the output signal due to the data input operation in the input setting device is invalidated, and the setting control data in the control computer can be prevented from being erroneously changed.

[Brief description of drawings]

FIG. 1 is a combination diagram of a side surface of a loom and a control circuit.

FIG. 2 is a block diagram showing a relationship between a main control computer and a memory card.

FIG. 3 is a table diagram for explaining stored data.

FIG. 4 is a flowchart showing a data rewrite permission determination program.

[Explanation of symbols]

20e, 20g ... Input setting device, 20a ... Card connection port, 26, 26A ... Memory card, Ce, Cg ... Main control computer.

Claims (1)

[Claims] 1. In a loom having a data transfer function between an external storage medium and a control computer for controlling the operation of the loom based on the control data, the control computer receives the control data by an input operation of an input setting device. Loom control method using an external storage medium that prohibits rewriting of control data by the input setting device when communication between the storage medium and the external storage medium is not connected.