JP2914570B2 - Wire inspection and cutting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire inspection and cutting apparatus capable of performing strength inspection while winding a manufactured long wire and cutting the wire into a predetermined length. Things.

[Conventional technology]

Generally, an optical fiber cable is formed into a predetermined external dimension by a drawing process of heating and drawing a rod-shaped material formed of quartz glass called a preform rod, and the formed external dimension is confirmed. Each secondary coating is applied, and finally a protective layer is formed on the outer surface. The manufactured optical fiber cable is wound around a bobbin. The optical fiber wound around the bobbin in this manner is a portion where a predetermined strength is obtained while performing a strength test (proof test) thereafter, and the outer dimensions are set in advance. Only a portion within the predetermined range is taken out as a non-defective product, cut into a predetermined length, and shipped.

Under these circumstances, for the optical fiber wound around the bobbin, a predetermined strength inspection work, a work for removing a defective portion based on data in the already performed outer diameter inspection work, a cutting work and a winding work. Inspection and cutting systems capable of performing a series of operations such as operations have been developed.
For example, as shown in FIG. 4, the inspection and cutting system has already been inspected for the outer diameter and the like, and the delivery bobbin 10
In order to wind the optical fiber 101 wound around the winding bobbin 102 on the winding bobbin 102, the winding machine 103 for rotating and driving the winding bobbin 102 and the winding amount of the optical fiber by the winding machine 103 are constantly controlled. A combination of a counter 104 for measuring, a proof tester 105 for inspecting the strength of the optical fiber 101, and a cutting machine 106 for cutting a defective part and cutting a non-defective part of the optical fiber 101 by a predetermined length. It has been known.

Therefore, the operation of the inspection and winding system will be specifically described using the optical fiber 101. Here, for example, as shown in FIG. 5, in the optical fiber 101 formed in a predetermined length L, a originally adapted to perform Setsuwari from the starting point A to the end point B for each Setsuwari length l _a It is assumed that (However, the scope thereof l _a is a preset,
That is, the length of l ₁ <l _a <l ₂ is satisfied, and the final section l ₀ is also l ₁ <l ₀ <
l ₂ In addition, as for the optical fiber 101 to be inspected, for example, as shown in FIG. 6, it is confirmed that there is a defective portion between the two sections CG and HI when inspecting the outer diameter. When the optical fiber 101 is cut while performing a predetermined strength inspection, and the cut optical fibers are wound around a winding bobbin, when the inspection and the winding system are used. The specific operation will be described with reference to the flowchart of FIG.

First, the defective section CG, HI of the optical fiber 101 'shown in FIG.
The operator himself / herself performs the division calculation for the part excluding (1) (first step 107).

Then, the counter 104 is set to 0. At this time, the cutting length is also set to a predetermined value (second step 10).
8).

Next, the operation of the winder 103 and the proof tester 105 is started (third step 109).

Then, the operator constantly checks whether or not there is a disconnection on the way (fourth step 110).

If there is no break in the optical fiber, the operator constantly checks whether the counter 104 has reached the predetermined position (step 111 in FIG. 5).

In this way, when the counter 104 indicates the predetermined number, the operator stops the winder 103 and the brief tester 105 (sixth step 112).

Next, the optical fiber 101 'is cut and cut at a predetermined length using the cutting machine 106 (the seventh step 11).
3).

Further, in the fourth step 110, when a disconnection occurs during the strength test by the proof tester 105, the operator immediately stops the winding machine 103 (eighth step 114).

The operator recalculates the division based on the number of the counter (ninth step 115).

At this time, it is determined whether or not the entire cutting operation has been completed for the optical fiber 101 (tenth step 11
6).

If it is determined in the tenth step 116 that all operations are not completed, the take-up bobbin is replaced with another one (eleventh step 117).

After that, the same operation is repeated from the first step 107 again.

On the other hand, when it is determined in the tenth step 116 that all operations have been completed, that is, in FIG. 8, it is confirmed that the optical fiber has a predetermined strength at all portions except for the defective portion, and no disconnection accident has occurred. When
It is cut into l _a , l _b , l _c (where l ₁ <l _a , l _b , l _c <l ₂ ) and wound around each winding bobbin.

Finally, the lengths of the optical fibers wound on the respective winding bobbins are all written on paper or the like (twelfth step 118).

 As described above, a series of inspection cutting work is completed.

[Problem to be solved]

However, when the inspection and splitting system having such a configuration is used, an operator manually performs various operations such as a split calculation for each optical fiber based on its own defective portion and a recalculation of the split when a disconnection occurs. Therefore, the work efficiency is extremely low and the work is troublesome. Therefore, the development of a device with high work efficiency is desired.

Accordingly, the present invention has been made in view of the above-described conventional problems,
It is an object of the present invention to provide a wire inspection and cutting apparatus capable of automatically performing a series of operations, that is, removal of a defective portion, cutting, winding, and checking strength.

[Means for solving the problem]

That is, the wire inspection and cutting device of the present invention is provided with a winding means for winding a wire stretched between a delivery bobbin and a winding bobbin, and a wire rod wound by the winding means. A test means for applying a predetermined tension to the wire and performing a strength test, and measuring the length of the wire having a predetermined quality confirmed by the test means and detecting the break in the case of a break in the inspection. Measuring means for measuring the length of the wire up to that point, recording means for recording the cutting length of the wire measured by this measuring means, cutting means for cutting the wire at a predetermined length, and Based on the wire quality inspection and the data on the quality of the wire confirmed by the strength inspection by this testing means, the data on the preset wire rod cut length, and the data constantly input from the measuring means, Control means for performing cutting calculation as needed for the wire material of the split part, controlling the operation of the winding means, measuring means, cutting means and recording means, and input means for inputting data specific to the control means It is.

[Action]

The wire rod inspection and cutting device according to the present invention is configured such that, when predetermined quality inspection has already been performed and data indicating where a defective portion is located and data of a set cutting amount are input to the control unit using the input unit, the control unit controls the winding. The starting and stopping of the taking means, measuring means, recording means, testing means, and cutting means are automatically controlled, and the operations of removing defective parts, calculating re-cutting after disconnection, checking strength, and winding are automatically performed. In this way, only the non-defective part of the optical fiber can be automatically wound up at a predetermined cutting length.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an apparatus for inspecting and cutting wire according to the present invention. The apparatus for inspecting and cutting wire includes a winding means 1, a measuring means 2, a testing means 3, a cutting means 4,
It comprises recording means 5, control means 6, and input means 7.

In the drawing, reference numeral 8 denotes a large-diameter delivery bobbin, 9 denotes an optical fiber that has already been inspected for its outer diameter, etc. up to the previous process, and 10 denotes one optical fiber wound around the delivery bobbin 8. 9
1 shows a small-diameter winding bobbin for winding after cutting.

The winding means 1 is for winding the optical fiber 9 stretched between the delivery bobbin 8 and the winding bobbin 10 to the winding bobbin 10 side. , And is started and stopped automatically by the control means 6.

The measuring unit 2 measures the length of the optical fiber 9 whose predetermined quality has been confirmed by the testing unit 3 and also measures the length of the optical fiber 9 up to the broken portion caused during the strength inspection. In this embodiment, the length of the optical fiber 9 is automatically measured from the rotation amount of a take-off pulley 11 provided inside a proof tester constituting the test means 3 shown in FIG. I have. That is, the measuring means 2 of this embodiment is composed of a photodiode and a photosensor (both not shown) for optically detecting the rotation amount of the take-off pulley 11, and the detection signal α output from the photosensor is Based on the control means 6, the optical fiber 9
Is calculated. Therefore, the output side of the photo sensor is connected to the input side of the control means 6. Further, the measuring means 2 is provided with a disconnection detecting means for immediately detecting when the optical fiber 9 has a disconnection, and the disconnection detecting means of this embodiment comprises:
An elastic force is urged upward by the spring 12, and the proximity sensor 14 detects disconnection from an approaching operation of the pressing pulley 13 that can slide upward. Then, when the proximity sensor 14 detects the disconnection of the optical fiber 9,
The detection signal β is immediately output to the control means 6 to stop the operation of the winding means 1. In addition, if the disconnection detecting means is not limited to a single location but is provided at several locations, the disconnection can be detected more accurately.

The test means 3 checks the strength by determining whether or not the optical fiber 9 breaks when a predetermined tension is applied to the optical fiber 9. The test means 3 of this embodiment applies a predetermined load to the pulleys 11 and 15 shown in FIG. 2 and electrically adjusts the positions of the dancers 16 and 17 to tension the optical fiber 9. The pull-down pulleys 11 and 15 and the dancers 16 and 17 are provided with a control means 6.
Is controlled by a control signal γ output from The take-off pulleys 11 and 15 are provided with a motor (not shown) for forcibly driving the pulleys 11 and 15 to send out the optical fiber 9 in a predetermined direction. The dancer
16, 17 are the delivery bobbin 8, the take-up pulley 11, and the take-up bobbin 1.
This is to absorb the difference in linear velocity between the pulley 15 and 0.
Reference numerals 18 and 19 in FIG. 2 denote pulleys fixed at predetermined positions, and the traveling optical fiber 9 is rotatably mounted so as to rotate while pressing.

The cutting means 4 has passed the predetermined strength inspection, and the part judged as non-defective in the quality inspection in the previous process has been wound on the winding bobbin 10 by a predetermined cutting length. Is operated when the measuring means 2 measures, and the optical fiber 9 is automatically cut by the cut length, and is operated by a control signal from the control means 6. That is, the cutting device 4 of this embodiment operates by electromagnetic force to cut the optical fiber 9, and is connected to the output side of the control means 6. By the operation of the cutting means 4, after the optical fiber 9 is cut, display means (not shown) such as a display lamp and a display buzzer provided at a predetermined position on the apparatus main body side are operated by a control signal from the control means 6. , Have the operator replace it with the next new bobbin,
It encourages bobbin replacement. Further, when it is confirmed that the remaining amount of the optical fiber is less than a predetermined minimum cutting length by the measurement work on the terminal end side of the optical fiber 9, the control means 6 displays the remaining amount of the optical fiber 9 by a number, Display means (not shown) for notifying the lack of the cutting length is also provided.

The recording means 5 includes the first winding means 1 wound around the delivery bobbin 8.
The data on how the optical fiber 9 was cut or cut and how much was wound on which winding bobbin was recorded one by one, and the data was recorded on a predetermined check sheet (not shown). Are sequentially recorded, and data from the measuring unit 2 is input via the control unit 6.

The control means 6 controls the optical fiber 9 confirmed by the quality inspection up to the previous process and the strength inspection by the testing means 3 of this operation.
When the data concerning the cutting length and the preset allowable cutting length and the total length of the optical fiber 9 are input by the input means 7 such as a keyboard, the optimum cutting length is calculated based on these data while performing a cutting test as needed. It has become. In other words, the control unit 6 operates the cutting unit 4 at least at the defective portion and removes the defective portion based on the quality inspection in the previous process, which is confirmed in advance, while performing the current running. Regardless of where the optical fiber 9 is cut by the strength inspection, the optimum cutting length can be immediately calculated for the remaining optical fiber portion based on the data constantly input from the measuring means 2 and changes as needed. The operation of the winding means 1, the cutting means 4 and the recording means 5 is controlled at appropriate timing while corresponding to the expected cutting length.

Next, a series of operations of the wire inspection and cutting apparatus of this embodiment will be described with reference to FIGS. 1 and 3. FIG.

First, one optical fiber 9 wound around a delivery bobbin 8 which is manufactured to a predetermined length and in which a defective portion has already been confirmed by a predetermined quality inspection is set in a predetermined position (first position). Step 20).

Then, all necessary predetermined data is input to the control means 6 using the input means 7, and a start button (not shown) provided on the apparatus main body is turned on (second step 21).

Then, the control means 6 automatically performs a predetermined division calculation based on the input data, and calculates an optimum division position (third step 22).

At substantially the same time, the winding means 1, the measuring means 2 and the testing means 5 start operating by the control signal output from the control means 6, and the proof tester is wound while the optical fiber 9 is wound by the rotation of the winding bobbin 10. Is activated to apply a predetermined tension, and the measuring means 2 is activated to automatically measure the winding length (fourth step 23).

In this manner, the optical fiber 9 is wound up, and it is determined whether or not there is a passage through a defective portion based on the data previously input during the winding operation. Then, if there is no passage of the defective portion at this time, it is determined whether or not the wire is disconnected (fifth step 24).

If it is determined by the measuring sensor 14 provided in the measuring means 2 that there is no disconnection, the optical fiber 9 is then moved by the cutting length.
It is determined whether or not has been wound (sixth step 2)
Five).

When the optical fiber 9 has not reached the split length, the process returns to the fifth step 24, and the same operation is repeated. The test means 3 stops operating (seventh step 26).

Then, the cutting means 4 operates at the predetermined cutting length to cut the optical fiber 9 (eighth step 27).

Further, the remaining amount of the optical fiber 9 is detected by the measuring means 2, and the control means 6 which has inputted the detected data.
However, it is determined whether or not a series of operations has been completed (Step 28, Step 9).

When it is determined that the remaining amount of the optical fiber 9 is longer than the predetermined cutting length, the control means 6 determines that the work has not been completed yet, and displays this on a display means (not shown). Then, the operator who has confirmed this exchanges the next winding bobbin (tenth step 29).

Thereafter, the same operation is repeated from the third step 22.

When it is determined in the ninth step 28 that the remaining amount of the optical fiber 9 is shorter than the predetermined split length, the operation is completed, and the total length including the total split length for the optical fiber stored by the recording means 5 is stored. The data of the cutting location is recorded on the check sheet (eleventh step 30).

Further, the disconnection occurs in the previous ninth step 25, and when this is detected by the proximity sensor 14 and it is determined that there is a disconnection, the winding means 1 and the test means 3 stop the operation (No.
12 steps 31).

Therefore, the control means 6 immediately grasps the cutting position based on the data from the measuring means 2, performs the re-cutting inspection, and calculates the optimum cutting length for the remaining optical fibers 9 (13th step 32).

Thereafter, the process returns to the tenth step 29, and the same operation is repeated thereafter.

When all the steps are completed as described above, that is, when the operation of the twelfth step 31 is completed, the optical fiber 9
The inspection and cutting device for the entire operation stops.

〔effect〕

As described above, according to the wire rod inspection and cutting apparatus according to the present invention, the data and the predetermined cut length for a wire rod that has already been subjected to a predetermined quality inspection and confirmed as a defective part have been confirmed. And the like are input to the control means via the input means, and the control means controls the operations of the winding means, the measuring means, the recording means, the test means, and the cutting means. These means can be operated at an optimum timing as appropriate according to the cutting phenomenon. In other words, the wire inspection and cutting device of the present invention automatically detects and sets only the non-defective parts that have passed the strength inspection while the best cutting length is calculated at any time and that have been confirmed by the quality inspection up to the previous process. Can be cut to the specified length, and the cut portion can be automatically taken up by the take-up bobbin. Has a great effect such as a dramatic improvement.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wire inspection and cutting device according to the present invention, FIG. 2 is a configuration diagram showing a configuration of testing means and the like in a wire inspection and cutting device according to the present invention, and FIG. FIG. 4 is a flowchart for explaining a series of operations in the wire inspection and cutting apparatus according to the present invention. FIG. 4 is a block diagram showing the configuration of a conventional inspection and cutting system;
FIG. 1 is an explanatory view showing a cut portion of an optical fiber used for explaining a conventional inspection and cutting system, FIG. 6 is an explanatory view showing a defective portion in the optical fiber, and FIG. 7 is a conventional view shown in FIG. FIG. 8 is a flow chart for explaining a series of operations in the inspection and cutting system of FIG. 1, and FIG. 8 is an explanatory diagram showing a state of cutting actually performed on the optical fiber having a defective portion shown in FIG. 1 ... winding means, 2 ... measuring means, 3 ... testing means, 4 ... cutting means, 5 ... recording means, 6 ... control means, 7 ... input means, 8 ... sending out bobbins, 9 ... wire rod, 10 ... winding bobbin.

Continuation of front page (58) Fields investigated (Int.Cl. ⁶ , DB name) G01M 11/00 G01N 3/00 G02B 6/00

Claims (1)

(57) [Claims] A winding means (1) for winding a wire (9) stretched between a delivery bobbin (8) and a winding bobbin (10), and the winding means (1) Means (3) for applying a predetermined tension to the wire (9) at the time of winding the wire (9) by the above-mentioned method, and a wire having a predetermined quality confirmed by the test means (3). (9) Measuring means (2) for measuring the length and detecting the disconnection in the event of a disconnection accompanying the inspection and measuring the length of the wire (9) up to that point; Recording means (5) for recording the measured cutting length of the wire (9); and cutting means (4) for cutting the wire (9) at a predetermined length.
And data relating to the quality of the wire (9) confirmed by the quality inspection of the wire (9) up to the previous process and the strength inspection by the test means (3), and the preset cutting of the wire (9). Based on the data on the length and the data constantly input from the measuring means (2), the undivided portion of the wire (9) is subjected to a cutting calculation as needed, and the winding means (1), the measuring means (2), and the cutting means are obtained. (4) a control means (6) for controlling the operation of the recording means (5); and an input means (7) for inputting data specific to the control means (6). Inspection and cutting equipment.