JP5798831B2 - Method and apparatus for manufacturing coated layer peeled electric wire - Google Patents

Description

  The present invention relates to a method and an apparatus for manufacturing a coated layer peeled electric wire in which a part of a coating layer of an electric wire is peeled, and more specifically, has a feature in the cutting method and the cutting device.

  Conventionally, in order to connect an insulated wire and another electrical device, for example, as shown in FIG. 5 (a), a certain length of the covering layer S is peeled off from one end (or both ends) to form a core wire C. As shown in FIG. 5B, the end-strip-type insulation-coated electric wire W1 with the wire exposed, or a coating layer S having a certain length in the middle of the insulation layer S, is provided at one place (or a plurality of places). Production of a stripped intermediate strip type edge-coated electric wire W2 has been carried out.

  The cutting principle of such a device for manufacturing the insulated wires W1, W2 is to move either the insulated wires W1, W2 or a not-shown cutting blade relative to the other, for example, The following manufacturing apparatuses have been proposed.

  First, as an apparatus for manufacturing an end strip type insulated coated electric wire W1, for example, the one described in Patent Document 1 is known.

  As shown in the schematic longitudinal sectional view of FIG. 6 (a), this apparatus is a cylindrical cutting head that revolves around the electric wire W1 with respect to the electric wire W1 whose outer periphery of the core wire C is coated with an insulating coating layer S. 51 is provided.

  The cutting head 51 is actually provided with a cutter 53 that is driven by a gear train (not shown). Here, when the gear train is replaced with a motor 52, the cutting head 51 holds the cutter. The motor 52 revolves around the electric wire W (that is, revolves), the disk cutter 53 fixed to the motor shaft rotates in the direction of the arrow in the drawing (that is, rotates), and the cutting edge 53a is a two-dot chain line. Is traced around the outer circumference of the core wire C.

  Therefore, the outer periphery of the electric wire W1 is cut by the cutting edge 53a of the disc cutter 53.

  Next, as shown in the front view of FIG. 6 (b), after peeling off the coating layer S of the portion where the entire circumference at the position of the specified length L is cut from the front end portion Wa, the entire cutting head 51 is formed. After moving a predetermined distance on the slide bed (not shown) in the right direction in the figure, the blade edge 53a of the disk cutter 53 descends and cuts the rear end Wb together with the core C.

  This type of apparatus 50 has an advantage that the cutting speed is improved because the disk cutter 53 for cutting the coating layer S is a circular rotary blade. Therefore, the sharpness and productivity are also improved.

  However, this apparatus 50 is large in size because the cutting head 51 is cylindrical, and the disk cutter 53 revolves 360 degrees along with the motor 52 while rotating around the outer periphery of the core wire C. The problem is that the structure of the power feeding system becomes complicated, and these are reflected in the manufacturing cost, resulting in an increase in cost.

  On the other hand, for example, a rotary peeling head described in Patent Document 2 is known as a method that employs such a cutting method that does not rely on the disc cutter 53.

  The principle of peeling of the rotary peeling head 60 is schematically shown in FIG. 7. An insulation coating layer S is coated on the outer periphery of the core wire C, and the wire W clamped by a device (not shown) is cut in a peeling head (not shown). While the blade 61 circulates around the outer periphery of the insulating coating layer S, the cutting depth is gradually increased as shown by a two-dot chain line in the figure, and when the tip of the cutting blade 61 reaches the outer periphery of the core wire C, it is not shown. It peels with the device.

  However, unlike the rotating disc cutter 53 of FIG. 6 described above, the cutting blade 61 of this device 60 revolves around the outer periphery of the insulating coating layer S but does not rotate (spin itself).

  Therefore, the cutting speed V of the cutting blade 61 with respect to the insulating coating layer S is defined as follows: R = 2 is the radius from the center of the core wire C to the tip of the cutting blade 61 and N is the number of rotations, and V = 2πRN / 60 (m / second). ) And has a certain limit compared to a disc cutter capable of high-speed rotation.

  Therefore, there is a problem that the cutting speed of the cutting blade 61 is slow, the sharpness is deteriorated, and the time until the cutting blade 61 is re-polished is shortened.

  In addition, when the wire W to be cut is, for example, a large-diameter wire or cable having a core wire diameter of 10 mm or more, such as a high-voltage wire or a bridging wire, the coating thickness is 5 to 8 mm, so the cutting is completed. There is a disadvantage that the time until the time is increased and the productivity is remarkably low.

JP-A-11-150826 (Claim 1, FIG. 2) JP-T 2008-537458 (Claim 1, FIG. 1a) Japanese Patent No. 3914571 (reference numerals 3g and 3h in FIG. 6)

  Therefore, the present invention eliminates such problems, and by cutting into the resin coating layer at an appropriate cutting speed according to the thickness and material, the resin coating layer has a good sharpness, and the cut surface An object of the present invention is to provide a method and an apparatus for producing a coated layer peeled electric wire, in which a beautiful one is obtained, the life of the cutting blade is long, and the production cost of the coated layer peeled electric wire and the production apparatus thereof is low. .

In order to solve the above-mentioned problem, the method for producing a coated layer peeled electric wire according to the present invention is a method for producing a coated layer peeled electric wire in which a cut is made in the coating layer before peeling the coated layer of the insulated coated wire,
A step of cutting the wire coating layer approximately half a circumference while rotating the disk cutter and cutting the substantially half circumference portion of the coating layer; and cutting the remaining approximately half of the coating layer by another disk cutter Thus, the method has a step of cutting the entire circumference of the coating layer and a step of peeling the coating layer after that.

  Therefore, if the peeling process is added to the above-mentioned present invention as the final process, the above-described covering layer peeled electric wire of FIG. 5 can be manufactured.

On the other hand, the device for manufacturing a coated layer peeled electric wire according to the present invention is a device for manufacturing a coated layer peeled electric wire that cuts into the coated layer before peeling the coated layer of the insulated coated wire,
A base, a disc cutter unit that cuts into the coating layer of the electric wire, an elevating unit that moves the entire disc cutter unit up and down in the vertical direction (Y-axis direction), and the base unit, A drive command in the X-axis and / or Y-axis direction is given to the traversing unit that moves the disc cutter unit and the lifting unit integrally in the left-right direction (X-axis direction), and the drive motor of each unit. An X-Y axis direction control device that controls a predetermined position in the Y biaxial direction, and the disk cutter unit revolves while revolving around a half circumference of the outer circumference of the core wire of the electric wire. A plate cutter and a second disc cutter, wherein the first disc cutter and the second disc cutter are controlled by the drive motors of the disc cutters from the XY axis direction control device. By the first disc cutter, the The coating layer of the wire is substantially half-circulated and cut into a substantially half-circumferential portion of the coating layer, and the second disk cutter cuts into the remaining substantially half-circle of the coating layer, so that the entire circumference of the coating layer is obtained. Two positions are controlled in the X-axis and / or Y-axis direction of the electric wire so as to be cut.

  Therefore, if the peeling apparatus is added to the present invention as a final process apparatus, the above-described covering layer peeled electric wire of FIG. 5 can be manufactured.

  The first disc cutter and the second disc cutter may be driven by individual motors with the respective cutters being made independent of each other.

  Moreover, it is preferable to use a servo motor, a stepping motor, or a linear motor as a drive motor used for position control of the first disc cutter and the second disc cutter.

  According to the manufacturing method of the covering layer peeled electric wire of the invention according to claim 1, the covering layer of the electric wire is substantially half-turned while rotating the disc cutter, and the covering layer is cut after being cut into a substantially half-circumferential portion of the covering layer. Since the remaining half of the layer is cut into the entire circumference of the coating layer by cutting with another disk cutter, the cutting blade does not rotate outside the coating layer as described in Patent Document 2 above. Unlike an apparatus that only circulates, the disk cutter is rotated at a high speed to cut the coating layer.

  Therefore, the manufacturing method of the present invention can appropriately set the relative speed of the cutter blade edge with respect to the coating layer even in the case of a cable having a large wire diameter, and the cutting speed is faster than that of the invention of Patent Document 2, Productivity increases. In addition, the cut surface of the coating layer is very beautiful and can be manufactured with good quality.

  According to the apparatus for manufacturing a coated layer peeled electric wire of the invention according to claim 2, since it is an apparatus for realizing the method for manufacturing a coated layer peeled electric wire according to the invention of claim 1, the same effect as the invention of claim 1 is obtained. In addition to being able to be played, the following excellent effects are achieved.

  1. Unlike the device of Patent Document 1 described above, the disk cutter and the disk cutter unit that is the drive mechanism thereof are cut by two disk cutters approximately half a circumference without rotating 360 degrees with respect to the electric wire. The drive system and power supply system of the device become much simpler. Therefore, the manufacturing apparatus is not increased in size and can be manufactured at a low cost, and the covering layer peeled electric wire can also be manufactured at a low cost.

  2.1 For one electric wire, approximately half the circumference of the wire is sequentially cut and cut by two disc cutters, so the tact time is slightly longer than that of Patent Document 1, but the entire circumference is cut. Since two disk cutters are used, the blade spillage is reduced accordingly, and the frequency of blade polishing is also reduced. Accordingly, the life of the disk cutter is increased, the frequency of blade replacement is reduced, and the labor cost is reduced, and a low-cost sheathed peeled wire can be manufactured.

  3. Increase / decrease adjustment of the rotational speed of the disk cutter can be easily performed according to the product number and outer diameter of the electric wire. Therefore, the applicable range of the product number and the outer diameter of the electric wire capable of cutting the coating layer of the present invention is widened and can be used in a wide range.

  According to the apparatus for manufacturing a coated layer peeled electric wire of the invention according to claim 3, since the first disc cutter and the second disc cutter are driven independently from each other by an individual motor, the effect of the device of claim 2 is achieved. In addition, the following excellent effects can be achieved.

  1. The tact time required for cutting the entire circumference of the insulated wire is such that each of the two cutters made up of the first disc cutter and the second disc cutter cuts simultaneously from both sides of the single insulated wire. This is much faster than that of Patent Document 1 in which one disc cutter 53 rotates while rotating around one insulation-coated electric wire W1 described in FIG.

  2. Even in the case of Patent Document 2, since the cutting blade 61 of this document does not rotate itself as described with reference to FIG. 7, the cutting blade 61 rotates around the insulating coating layer S so that the cutter itself rotates. The tact time of this device is even faster.

  3. Since the first disc cutter and the second disc cutter can be cut simultaneously from both sides of the insulated wire, the pressing force of each cutter against the insulated wire is offset, and the cut surface of the coating layer is the wire A beautiful thing perpendicular to the axis is obtained.

  According to the apparatus for manufacturing a coated layer peeled electric wire according to the invention of claim 4, in addition to the effect of the apparatus of claim 2 or claim 3, the drive motor used for position control of the first disc cutter and the second disc cutter As a servo motor, a stepping motor or a linear motor is used, the position control of the first disk cutter and the second disk cutter becomes easy, and precise two-position control in the XY2 direction becomes possible.

It is a front view which shows the manufacture principle of the manufacturing method of the covering layer peeling electric wire which concerns on this invention. It is a front view of one Embodiment of the manufacturing apparatus of the covering layer peeling electric wire which concerns on this invention. FIG. 3 is an enlarged right side view of the apparatus of FIG. 2 according to the present invention. It is a front view of the other example of the apparatus of FIG. It is a front view of an example of the covering layer peeling electric wire which the manufacturing method and manufacturing apparatus of the present invention aim at, and Drawing 5 (a) is an end strip type, and Drawing 5 (b) is an intermediate strip type. FIG. 6A is a cross-sectional view for explaining the cutting principle of the cable outer peripheral coating layer cutting device described in Patent Document 1, and FIG. 6B is a right side view thereof. It is a cross-sectional view explaining the cutting principle of the rotary peeling head described in Patent Document 2.

10, 10A Base 20, 20A Lifting unit 30, 30A Disc cutter unit 31 First disc cutter 32 Second disc cutter 33 Timing belt 38, 38A Cutter drive servo motor 40, 40A Traverse unit 50 Control panel (X -Y-axis direction control device)
100 Production apparatus for sheathed peeled wire (present invention)
200 Production apparatus for sheathed peeled wire (present invention)
C Core wire O Center R1 to R7 Movement locus S Coating layer W, W1, W2 Insulated coated wire

Embodiment 1

Drawing 1 is a front view for explaining one embodiment of a manufacturing method of a covering layer peeling electric wire concerning the present invention.
In this figure, the vertical direction of the figure is the top and bottom, and in the following description, the horizontal direction of the figure is the X-axis direction, the vertical direction is the Y-axis direction, and the vertical direction to the drawing is the Z-axis direction. .

In the figure, symbol W denotes an insulated coated electric wire to be cut by the method of the present invention, which is composed of a core wire C and an insulating coating layer S, as described above with reference to FIG. In the present invention, the outer diameter d of the electric wire W is not particularly limited, but in the first embodiment, the outer diameter d is 5 to 20 mm, and the axial cut pitch is about 0.2 to 10 m. For example.
Reference numeral 31 above the electric wire W is a first disk cutter, and reference numeral 32 is a second disk cutter, both of which are rotatably supported by a bearing unit (not shown) in the direction of the drawing.

  A broken line 33 in the figure is an endless timing belt. The opening width P allows the wire W to enter between the cutters 31 and 32 with a margin, and the lower end of the wire W has a margin on the common center line Q of both cutters. The travel path of the timing belt 33 is formed in a “U” shape in which the opening is opened downward by the arrangement of one drive pulley 34 and five guide pulleys 35. These members constitute the disc cutter unit 30.

  Therefore, if the drive pulley 34 is driven in the clockwise direction indicated by the arrow in the figure by a servo motor or the like (not shown), the timing belt 33 circulates in the illustrated path, and therefore the first disc cutter 31 and the second disc cutter 32. Can also be rotated clockwise. Further, when the rotational speed of the drive pulley 34 is increased or decreased, the traveling speed of the timing belt 33 is also increased or decreased, so that the rotational speed of the cutters 31 and 32 with respect to the coating layer S can be easily adjusted to an optimum speed.

  Reference numerals R1 to R6 are movement trajectories of the cutting edge 31a of the first disc cutter 31, and when the first and second disc cutters 31 and 32 are at the illustrated positions, both cutters rotate (that is, rotate). First, it moves to the left by the locus R1, then descends by the locus R2, and after cutting the coating layer S by the thickness directly above the wire W, the cutting edge 31a is now the outer circumference of the core C. After turning clockwise (that is, revolution) by the locus R3 of the right half of the surface, this time, the locus R4 descends and leaves, returning to the original position via the locus R5 and locus R6.

  According to the movement trajectories R1 to R6 of the first disc cutter 31, the covering layer S of the electric wire W is cut into the substantially right half thereof.

  On the other hand, symbol R7 is a movement locus of the cutting edge 32a of the second disc cutter 32, and is symmetrical with respect to a perpendicular passing through the center O of the electric wire W with respect to the aforementioned movement locus R1 to R6 to the first disc cutter 31. According to such a movement locus R7 that follows the locus, the same cut can be made in the remaining approximately half of the coating layer S of the electric wire W.

  Such movement trajectories R1 to R6 and R7 cause the cutter support arm 36 (FIGS. 2 and 3) that rotatably supports the first and second disc cutters 31 and 32 to move in the XY biaxial directions. This can be easily achieved by controlling the position at the same time.

  According to such a cutting method, the first disc cutter 31 and the second disc cutter 32 can divide approximately half the circumference of the coating layer S of the electric wire W, respectively. Cuts can be made in the entire circumference of the coating layer S.

  Note that the movement trajectories R1 to R6 and R7 of the illustrated first and second disc cutters 31 and 32 have gaps between the trajectories R1 to R6 and the trajectory R7, but this is for convenience of explanation. In fact, the movement trajectories are slightly overlapped with each other, and in this way, the entire circumference of the outer peripheral surface of the core C can be surely cut.

In addition, after the first disc cutter 31 cuts to a range slightly exceeding the half circumference of the coating layer S, the rest may be cut by the second disc cutter 32, or vice versa.
In short, the two disk cutters 31 and 32 complement each other, and the entire circumference of the coating layer S may be cut. In the meaning of the above, in the present invention, the term “substantially half-circumference” is used for the rotation range of the first and second disc cutters 31 and 32 with respect to the coating layer S.

  Finally, the coating layer S that has been cut into the entire periphery is peeled off from the core wire C.

  This is because when the second disc cutter 32 has been cut into the entire circumference of the coating layer S, either the entire disc cutter unit or a constant-length feeding device for the electric wire W (not shown) is moved in the axial direction of the electric wire W ( The coating layer S can be easily moved to the core wire C by moving the coating layer S in the axial direction (that is, dividing the coating layer S vertically) with a known cutter (not shown). Can be peeled from.

Therefore, according to the manufacturing method of the covering layer peeled electric wire of the present invention, the covering layer S of Patent Document 1 described above can be cut all around the covering layer S as compared with the type in which the disc cutter 53 rotates 360 degrees. Although the tact time required is slightly increased, since the entire circumference of the electric wire W is not circulated, simple and reliable cutting can be realized by a low-cost cutting method.
Further, unlike the cutting blade 61 of Patent Document 2 that does not rotate by itself, the cutting is performed by the disc cutters 31 and 32 that rotate at an appropriate speed, so that the sharpness of the coating layer S is very good. Therefore, it is possible to manufacture the coated layer peeled electric wire W having a beautiful cut surface and good quality.

  Further, even in the case of a cable having a large wire diameter, unlike the device of Patent Document 2 described above, it is cut by a disk cutter that rotates at high speed by itself, so that the disk cutter is cut according to the outer diameter of the cable and its material. The speed can be increased or decreased as appropriate. Therefore, the manufacturing method of the present invention has a wide range of applicable wire diameters and can be used in a wide range.

Embodiment 2

  Next, an embodiment of the apparatus for manufacturing a coated layer peeled electric wire according to the present invention for realizing the method for manufacturing the coated layer peeled electric wire W of the first embodiment will be described with reference to FIGS. 2 and 3.

  Among these, FIG. 2 is a front view of the apparatus 100 for manufacturing a coated layer peeled electric wire, and FIG. 3 is an enlarged right side view thereof. The left-right direction in the figure is the X-axis direction, the up-down direction is the Y-axis direction, and the direction perpendicular to the drawing sheet is the Z-axis direction.

  In FIG. 2, the code | symbol W has shown the longitudinal cross-section of the electric wire mentioned in Embodiment 1, and is clamped by the clamp apparatus which is not illustrated in the one side or both sides of the manufacturing apparatus of this invention.

  The constituent members of the manufacturing apparatus 100 of the present invention can be broadly divided into the base 10, the disk cutter unit 30 described in the first embodiment, and the entire disk cutter unit 30 in the vertical direction (Y-axis direction). A lifting unit 40 that moves up and down, a traversing unit 20 that moves the disc cutter unit 30 and the lifting unit 40 together in the left-right direction (X-axis direction) in the figure, and servo motors that will be described later for these units 20, 30, 40. Is provided with a control panel 50 (XY axis direction control device) that gives a drive command to the X axis and / or Y axis direction and performs predetermined position control in the XY biaxial direction.

  Explaining each of these components individually, the base 10 is a common base of the apparatus 100 for manufacturing the coating layer-peeled wire W according to the present invention, and has a rectangular shape that is long in a direction orthogonal to the axial direction of the wire W. The traversing unit 20 is fixed thereon.

  The traversing unit 20 is for moving the disc cutter unit 30 and its lifting / lowering unit 40 in the left-right direction (X-axis direction) in the figure. The traversing servomotor 21, its coupling 22, Bearing 23, a ball screw unit 24 supported between the bearings 23, a support block 25 of a lifting unit 40 fixed to a nut 24 a of the ball screw unit, and a horizontal guide for guiding the support block 25 to the left and right. And a slide base 26.

  Therefore, when the traverse servomotor 21 rotates forward and backward, the ball screw 24 also rotates forward and backward in the same manner, and the nut 24a traverses between the two-dot chain line position from the solid line position in the figure. The nut 24a slides the support block 25 to the left and right on the horizontal slide base 26 in the same manner. However, since the entire lifting unit 40 is fixed on the support block 25, the lifting unit 40 is similarly moved in the left and right direction (X axis). Direction).

  On the other hand, the raising / lowering unit 40 is for raising and lowering the entire disc cutter unit 30 in the vertical direction (Y-axis direction) between two-dot chain lines in the figure, and is basically the same as the traversing unit 20 of the disc cutter unit 30. It has the same configuration.

  That is, a lifting slide base 41 erected from above the support block 25, a lifting servo motor 42 fixed to the top of the lifting slide base 41, its drive timing pulley 43, a driven timing pulley 44, both A timing pulley 45 wound between pulleys, a pair of upper and lower bearings 46, a ball screw unit 47 supported between the bearings 46, 46, and a disc cutter fixed to a nut 47a of the ball screw unit The unit 30 includes a support block 48 and an LM guide 49 that supports the support block 48 and guides it in the vertical direction.

  Therefore, when the raising / lowering servo motor 42 rotates forward and backward, the drive timing pulley 43 is driven, and the drive torque is transmitted to the driven timing pulley 44 by the timing pulley 45 to rotate the ball screw 47 forward and backward. When the ball screw 47 rotates forward and backward, the nut 47 a raises and lowers the support block 48.

  When the support block 48 moves up and down, the entire disc cutter unit 30 also moves up and down between the two-dot chain line positions from the solid line position in the figure.

  The disc cutter unit 30 cuts the entire circumference of the electric wire W supported in the vertical direction of the figure by a notch (not shown) by sequentially cutting the covering layer S approximately half a round. The basic principle of cutting is the same as that of FIG. 1 except that the arrangement and orientation of the constituent members are different. Therefore, the same reference numerals as those used in the first embodiment are used for the same members described in the first embodiment that appear in the second embodiment.

  Accordingly, the disk cutter unit 30 will be described in detail. As shown in FIGS. 2 and 3, the disk cutter unit 30 includes a first disk cutter 31 and a second disk cutter 32 positioned above and below, The cutter support arm 36 rotatably supports the cutters 31 and 32, and a first disc cutter and a second disc cutter drive mechanism 37 fixed to the cutter support arm 36.

  The first disk cutter 31 and the second disk cutter 32 are literally disk-shaped in outer diameter, have the same outer diameter (or different outer diameters), and support the cutter as shown in the right side view of FIG. The arm 36 is rotatably supported by a cantilever. As described above in the first embodiment, the cutter support arm 36 has a substantially “U” shape when viewed from the front, and the cross section thereof is also substantially “C” in order to support the bearings of the drive pulley 34 and the driven pulley 35 at both ends. A "-shaped cross section (not shown). Similarly, the cutter support arm 36 has a cutting work area having the opening width and depth described with reference to FIG.

  The configuration of the drive mechanism 37 of the first and second disc cutters is exactly the same as that described in the first embodiment. That is, a servo motor 38 for driving the cutter, a driving pulley 34 fixed to the shaft end thereof, six driven pulleys 34 driven by the driving pulley 34 via the driving belt 39 and the timing belt 33, and these 6 Each of the driven pulleys 34 is driven by a pair of bearings 37a that rotatably supports the cutter support arm 36 and its pulley shaft 37b, and a first disc cutter driving pulley 35, and the rotational torque is driven by the first disc. A pair of second disks that are driven by a pair of first disk cutter driving gears 37c that transmit to the cutter 31 and a second disk cutter driving pulley 35 and that transmit the rotational torque to the second disk cutter 32. And a cutter driving gear 37d.

  As shown in FIG. 3, the servo motor 38 for driving the cutter is fixed below the cutter support arm 36, and the pulleys 34 and 35 have substantially the same orbit of the timing belt 33 as shown in FIG. Each rotary shaft 37b is supported at both ends by a pair of bearings 37a and 37a fixed to the cutter support arm 36 so as to form a U-shape.

  Accordingly, when the cutter driving servo motor 38 rotates, the rotational torque is driven pulley 34-> driving belt 39-> pulley shaft 37b-> timing belt 33-> first and second cutter driving pulleys 35, 35-> first disc cutter. The drive gear 37c and the second disc cutter drive gear 37d are transmitted in this order, and eventually the first disc cutter 31 and the second disc cutter 32 are simultaneously and in the same direction (counterclockwise in FIG. 2). Can be rotated.

  Reference numeral 50 denotes the servo motors 21, 42, and 38 of the traverse unit 20, the lift unit 40, and the disc cutter unit 30 of the disc cutter unit 30 described above, and forward / reverse rotation and its rotation speed (cutting speed), A control panel (XY axis direction control device) for giving instructions for the cutting conditions for the wire coating layer S such as the rotation time (transverse and elevation times), which are necessary to realize the above drive conditions Built-in electronic control program.

  The control panel 50 is electrically connected to each servo motor, and is also electrically connected to other sensors such as a notch depth detection sensor and an XY position detection sensor of each disk cutter (not shown). .

  The control panel is equipped with buttons (not shown) for inputting the above cutting conditions to the electric wire W to be cut, and an appropriate graphic display panel for checking the cutting conditions and the current state of the cutting. Based on the detection signals of these buttons and the above sensors, the rotational speed and rotation time of each servo motor are controlled, that is, the two positions of the blade edges 31a and 32a of the first disc cutter 31 and the second disc cutter 32, respectively. Control (XY position control) can be performed.

  Next, an example of the movement (action) of the apparatus for manufacturing a coated-layer peeled wire according to the present invention will be described.

  First, the operator clamps the electric wire W to be cut into the covering layer S with a clamping device (not shown).

  Next, the worker inputs the cutting condition such as the number of rotations of the cutter and the cutting depth in addition to the number of the electric wire to be cut, its outer diameter, the thickness of the coating layer S, into the control panel 50.

  When the operator presses a start button (not shown) on the control panel 50 after completing these preparatory operations, the servo motor 21 of the traversing unit 20 and the servo motor 42 of the lifting unit 40 are activated by the program in the control panel. The entire disc cutter unit 30 is moved to the position shown in FIG.

  Next, the servo motor 38 of the disk cutter unit 30 is activated, and the rotation speeds of the first and second disk cutters 31 and 32 reach a specified rotation speed necessary for cutting.

  When the number of rotations of the first and second disc cutters 31 and 32 reaches the specified number of rotations, a drive instruction is given to the servo motor 21 of the traversing unit 20 and the servo motor 42 of the elevating unit 40 from the program of the control panel 50. Then, the position of the first disc cutter 31 in the XY direction is automatically controlled. First, the first disc cutter 31 follows the trajectories R1 to R6 described in FIG. A cut is made in S.

  When the cutting of the coating layer S in the upper half of the electric wire W is completed, the position of the second disc cutter 32 in the X and Y directions is automatically controlled, and the remaining approximate bottom is obtained by following the locus R7 described in FIG. Cuts are made in half of the coating layer S, and the cutting into the entire circumference of the coating layer S is completed. Of course, these trajectories can be traced appropriately other than the above.

  When the cutting into the coating layer S is completed, the electric wire W is moved in the axial direction by driving an unillustrated object such as a general-purpose blade described in Patent Document 3, or an intermittent constant length feeding device for the electric wire W. Alternatively, the covering layer S is peeled off by making a cut in the axial direction of the covering layer that has been cut with a known cutting device.

  In addition, although the said description demonstrated the case where the position of the 1st and 2nd disc cutters 31 and 32 was automatically controlled simultaneously in the XY direction, it is possible to manually control the movements in the X and Y axis directions manually. Of course (so-called jog operation).

  Therefore, according to the manufacturing apparatus 100 of the coating layer peeling electric wire of this embodiment, the following outstanding effects can be produced.

  Since the apparatus 100 for manufacturing a peeled-layer peeled electric wire according to the second embodiment is an apparatus for realizing the method for manufacturing a peeled electric wire according to the first embodiment, the same effect as that of the first embodiment can be obtained. Has an excellent effect.

  1. Unlike the apparatus disclosed in Patent Document 1 described above, the disk cutter is cut by the two first and second disk cutters 31 and 32 half by half without rotating around the electric wire W. The power supply system becomes much simpler. Therefore, a manufacturing apparatus can be obtained at a low cost, and a coated layer peeled wire can be manufactured at a low cost.

  2.1 For one electric wire W, approximately half the circumference of the electric wire W is sequentially cut and cut by two disc cutters, so that the tact time is slightly increased compared to the device of Patent Document 1. However, since two disc cutters are used for cutting all around, blade spillage is reduced and the frequency of blade polishing is also reduced. Accordingly, the life of the disk cutter is increased, the frequency of blade replacement is reduced, and the labor cost is reduced, and the low-cost coated layer peeled electric wire W can be manufactured.

  3. Since a servo motor, stepping motor or linear motor is used as the drive motor, it is easy to increase or decrease the rotation speed of the disk cutter according to the wire part number and the outer diameter of the wire. become. Therefore, the applicable range of the wire part number and the wire diameter that allow the cutting of the coating layer S is widened and can be used in a wide range.

Embodiment 3

  FIG. 4 is a schematic front view of a manufacturing apparatus 200 as another example of the manufacturing apparatus 100 of FIG.

  In the manufacturing apparatus 100 of the second embodiment described above, the first disk cutter 31 and the second disk cutter 32 are simultaneously controlled in the X-Y2 axial directions by the same drive motor 38. The manufacturing apparatus 200 drives the cutters 31 and 32 by individual drive motors 38A and simultaneously controls the positions in the X and Y directions at two positions.

  Therefore, as shown in the drawing, the disc cutter unit 30A and the cutter support arm 36A also have their own one for each of the first disc cutter 31 and the second disc cutter 32, and the lifting unit 20A and the traversing unit 40A are also provided. It is the same.

  That is, each lift unit 20A and the traversing unit 40A are provided with individual cutter drive servo motors (not shown). The lift unit 20A and the traverse unit 40A are connected to the control panel 50 (XY axis direction control device). ), Two-position control in the XY directions can be simultaneously performed on the base 10A.

  According to the apparatus 200 for manufacturing a coated layer peeled electric wire of the present embodiment, the first disc cutter 31 and the second disc cutter 32 are independently controlled by the individual drive motors 38A.

  Therefore, in addition to the effect of the second embodiment, each of the cutters 31 and 32 is independently controlled in its position and rotational speed, whereby two cutters 31 and Since simultaneous cutting can be performed at 32, the tact time required for cutting all around is much faster than in the case of Patent Documents 1 and 2.

  In the case of simultaneous cutting from both sides of the insulated wire W, the pressing force from the first disc cutter 31 and the second disc cutter 32 against the insulated wire W is canceled as described above. The cut surface of the layer is always beautiful and orthogonal to the wire axis, and has a remarkable effect that cannot be obtained by the devices of Patent Documents 1 and 2.

  The production method and production apparatus of the present invention are not limited to the above-described embodiment, and various modifications and combinations are possible within the scope of the claims and the scope of the embodiments, and these modifications Combinations are also included in the scope of the present invention.

  For example, in the manufacturing method and the manufacturing apparatus of the present invention, the insulating coating layer S uses a two-layer structure electric wire, but can naturally be applied to an electric wire having a three-layer structure or more, and is included in the scope of the present invention. Of course.

  Further, according to the present invention, not only the cross section of the coating layer is circular, but also a triangular, quadrangular, and elliptical shape can be cut and peeled in the same manner, and similarly for a LAN cable having a plurality of wirings built-in. Can be cut and peeled.

  The manufacturing method and the manufacturing apparatus of the present invention are not limited to a covered electric wire, for example, when the work has a plurality of cut portions on the upper and lower surfaces or the left and right surfaces, a first disc cutter as a dedicated tool in the immediate vicinity of each surface; Since the second disk cutter exists and is processed, the tact time of the cutting is remarkably reduced because the moving distance of the disk cutter can be shortened.

  Further, if a tool such as a brush or sandpaper is attached to the cutter support arm instead of the disc cutter, automatic polishing of the core wire, the structure, etc. in the middle portion of the electric wire can be facilitated.

  Therefore, the production method and production apparatus of the present invention can be utilized in such fields.

Claims (3)

A device for manufacturing a coating layer-peeled electric wire that cuts into the coating layer before peeling the coating layer of the insulation-coated wire,
The base,
A disc cutter unit that cuts into the coating layer of the wire;
An elevating unit for elevating the entire disc cutter unit in the vertical direction (Y-axis direction);
A traversing unit that is provided on the base and moves the disc cutter unit and the lifting unit together in the left-right direction (X-axis direction);
An XY axis direction control device that gives a drive command to the drive motor of each unit in the X axis and / or Y axis direction and performs predetermined position control in the XY biaxial direction;
The disc cutter unit includes a first disc cutter that revolves while rotating approximately half of the outer circumference of the core of the electric wire, and a second disc cutter,
The XY axis direction control device includes a command for the first disc cutter to move approximately half of the outer circumference of the core wire of the electric wire, and the second disc cutter for the remaining approximate portion of the outer circumference of the core wire of the electric wire. Generate commands to move half a circle separately,
The first disc cutter and the second disc cutter are configured such that a drive motor of each disc cutter uses the first disc cutter in response to each command from the XY axis direction control device. The coating layer is substantially half-rounded, and a cut is made in a substantially half-circumferential portion of the coating layer, and a cut is made in the remaining half-circle of the coating layer with the second disc cutter, so that the entire circumference of the coating layer is cut. The apparatus for manufacturing a coated layer peeled electric wire is controlled at two positions in the X-axis and / or Y-axis direction of the electric wire so as to be inserted. The said 1st disc cutter and the said 2nd disc cutter are each independently driven with an individual motor, The manufacturing apparatus of the covering layer peeling electric wire of Claim 1 characterized by the above-mentioned. . The coating layer peeling according to claim 1 or 2 , wherein a drive motor used for position control of the first disc cutter and the second disc cutter is a servo motor, a stepping motor, or a linear motor. Electric wire manufacturing equipment.

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