JP2000100261A - Stopping method of wire manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop a wire manufacturing device after performing the production according to a set production line length to maximize a yield by starting deceleration before the set production line length is achieved, and by decelerating and stopping the device while correcting the inclination of the deceleration such that the produced length at the time of stop equals the production line length. SOLUTION: An extruder 1 covers the outside surface of a conductor 3 introduced into an extruding head 2 with a resin. Multiple winders 9 wind a covered wire 5 on their drums through a cooling water tank 4, a pulling machine 6, a winding accumulator 7 and a winding pinch caterpillar 8. Deceleration is started by the winding pinch caterpillar 8 before the length of the covered wire 5 reaches a set production line length, and the production line is decelerated and stopped while correcting the inclination of the deceleration such that the produced length at the time of stop equals the production line length. At that time, the length of the product includes a length from the extruding head 2 to the winder 9. Then, the next production is started and the drum is changed to another one when the winder 9 has taken up the portion of the preceding production (from the extruding head 2 to the winder 9).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for stopping an electric wire manufacturing apparatus, and more particularly to a method for stopping a production line suitable for an electric wire covering apparatus.

[0002]

2. Description of the Related Art In a conventional method for stopping a production strip length of an electric wire covering apparatus, a production strip length is set, and the production length is measured by a measuring instrument or the like provided on a production line, and the measured value becomes equal to the set value. In many cases, the device is stopped when it has been stopped.

[0003]

However, according to the conventional method, it is necessary to stop the production so that the production length is longer than the set production length in order to appropriately stop the production.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to stop production by performing production according to a set production line length and minimize the yield.

[0005]

The present invention has solved the above-mentioned problems as follows. That is, deceleration is started before the set production line length is reached, and the deceleration is stopped while the inclination of the deceleration is corrected so that the production length when stopped is equal to the production line length.

Therefore, the stopping distance at which the vehicle stops at the set deceleration from the linear velocity during operation is calculated every moment, the production length is measured every moment, and when the remaining length with respect to the production line length becomes equal to the stopping distance, Start deceleration at the set deceleration. Also,
Even after the deceleration is started, the stop distance for the linear velocity according to the deceleration is calculated, and the deceleration is performed while always correcting the set deceleration so that the remaining length becomes equal to the stop distance.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings.

FIG. 1 is a schematic explanatory view of an electric wire covering device.

As shown in FIG. 1, the conductor 3 introduced into the extrusion head 2 of the extruder 1 is cooled in a cooling water tank 4 after the outer surface is coated with a resin. After the cooled covered electric wire 5 is taken up by the take-up machine 6, it is taken up by the take-up pinch caterpillar 8 via the take-up accumulator 7, and is taken up by the plurality of take-up machines 9.

Next, steps from start to stop of the electric wire covering apparatus will be described. (A) Before production, the number of drums of products to be produced next and the length per drum are set in a computer. (B) After the setup is completed, the extruder 1 is driven by the start key to start extrusion coating of the conductor 3 introduced into the extrusion head 2. (C) Before the winding length of the first winding drum, the production linear speed is reduced to the rewind linear speed by the winding pinch caterpillar 8.
After reaching the rewinding linear velocity, the rewinding length becomes about 1 minute, so the operator switches from the first winding drum to the second winding drum. During this time, the covered electric wire 5 is stored in the winding accumulator 7. (D) After rewinding to the second winding drum, the winder 9 is driven,
Again, speed up to production line speed. (E) In the case of the final drum, deceleration is started before the set production line length is reached, and the line is decelerated while correcting the deceleration gradient so that the production length when stopped is equal to the production line length. To stop. (F) At this time, the product has a length including the portion from the extrusion head 2 to the winder 9 (the portion not wound on the drum). Subsequently, the next production is started, and the drum is changed when the previous time (from the extrusion head to the winding machine) has been wound.

Next, the step (e) will be described in detail with reference to FIG.

[0012] stopping distance stopping at a linear velocity in operation υ (m / sec) set deceleration from ^{α (m / sec 2) (} υ 2/2
α) is calculated every moment. On the other hand, the production length l (m) is also measured every moment.

When the remaining length (L-1) with respect to the set production length (L) becomes equal to the stop distance (υ ² / 2α), the deceleration is started at the set deceleration (α).

After the deceleration is started, the stopping distance (停止² / 2α) with respect to the linear velocity (υ) according to the deceleration is similarly calculated.

At this time, the set deceleration (α) is always corrected so that the remaining length (L-1) is equal to the stopping distance (υ ² / 2α). For example, α × (1+ (υ
² / 2α) / (L−1)) → α.

After all, when the operation is completely stopped, the production length (l) = the production line length (L). Production length (l) =
Even when the production line length (L) is reached, as shown in FIG.

[0017]

Since the present invention is configured as described above, the production can be stopped according to the set production length, and the yield can be minimized.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of an electric wire covering device.

FIG. 2 is an explanatory view of a method for stopping a production strip of an electric wire covering apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 extruder 2 extrusion head 3 conductor 4 cooling water tank 5 covered electric wire 6 take-up machine 7 take-up accumulator 8 take-up pinch caterpillar 9 take-up machine

Claims (6)

[Claims] The deceleration is started before the set production length (L) is reached, and the inclination of the deceleration is corrected so that the production length (l) when stopped is equal to the production length (L). A method for stopping an electric wire manufacturing apparatus, wherein the method is performed while decelerating. 2. The stopping distance at which the vehicle stops at the set deceleration (α) is calculated every moment from the linear velocity (υ) during operation, and the production length (l) is measured every moment. The method according to claim 1, wherein when the length (L-1) becomes equal to the stopping distance, deceleration is started at a set deceleration (α). 3. Even after the deceleration is started, the stop distance for the linear velocity (υ) according to the deceleration is calculated, and the set deceleration is always set so that the remaining length (L-1) becomes equal to the stop distance. The method according to claim 2, wherein the deceleration is performed while correcting (α). 4. The set deceleration (α) is corrected to α ×
The method according to claim 3, wherein (1+ (υ ² / 2α) / (L−1)). 5. The method for stopping an electric wire manufacturing apparatus according to claim 2, wherein when the production length (l) becomes the production length (L), the production is stopped. 6. The stopping of the electric wire manufacturing apparatus according to claim 2, wherein even if the production length (l) becomes the production strip length (L), the production length is kept low and then stopped. Method.