KR20170030284A - Apparatus for stripping insulated coating and method thereof - Google Patents

Apparatus for stripping insulated coating and method thereof Download PDF

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Publication number
KR20170030284A
KR20170030284A KR1020150127658A KR20150127658A KR20170030284A KR 20170030284 A KR20170030284 A KR 20170030284A KR 1020150127658 A KR1020150127658 A KR 1020150127658A KR 20150127658 A KR20150127658 A KR 20150127658A KR 20170030284 A KR20170030284 A KR 20170030284A
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KR
South Korea
Prior art keywords
workpiece
frame
unit
motor
cutter
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Application number
KR1020150127658A
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Korean (ko)
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KR101841524B1 (en
Inventor
박병주
박문태
우성철
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박병주
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Priority to KR1020150127658A priority Critical patent/KR101841524B1/en
Publication of KR20170030284A publication Critical patent/KR20170030284A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
    • H02G1/1248—Machines
    • H02G1/1265—Machines the cutting element rotating about the wire or cable
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
    • H02G1/1248—Machines
    • H02G1/127—Features relating to cutting elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • H02G1/1297—Removing armouring from cables

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  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Abstract

The invention discloses an apparatus for cutting and removing an insulating sheath from an end of a workpiece having a polygonal cross section and having an insulating sheath applied thereto. An apparatus of the present invention includes: a frame; A cutter unit installed on the frame to cut an insulating coating of a workpiece having a polygonal cross section; A transfer unit for reciprocating the cutter unit at a predetermined distance on the frame; A workpiece rotating support unit for supporting and rotating the workpiece at a working position for cutting the insulating coating with respect to the cutter unit; And a control unit for controlling driving of the units. INDUSTRIAL APPLICABILITY The present invention can easily remove an insulation coating while rotating a workpiece having a polygonal cross section, and can thus be used for mass production in a high production efficiency. The invention also discloses a method of cutting and removing an insulating sheath from an end of a workpiece having a polygonal cross section and having an insulating sheath applied thereto.

Description

[0001] Apparatus for stripping insulated coating and method [0002]

TECHNICAL FIELD The present invention relates to an insulation coating removal, and more particularly, to an insulation coating removal apparatus that can easily and efficiently remove an insulation coating of a conductor having a polygonal cross section. The present invention also relates to a method for removing an insulating coating using this apparatus.

In general, industrial electric conductors (hereinafter simply referred to as "conductors") are made of copper or aluminum and plated with a conductive metal such as silver or nickel on the surface thereof. Particularly, Polymer resin is coated on the conductor.

A typical method of making an insulating coating is to cover the end of a conductor by inserting the end of the rod-like conductor into a tube body made of a polymer resin. Other technologies include insulated shrink tubes made of polymer resin, insulating films, insulating boots, and the like. As another method, in the case of a conductor used in a high-voltage power distribution apparatus, a method of forming an insulating coating on a conductor to impart insulation performance to the conductor is also practiced.

In order to connect the conductor having the insulation coating as described above to other devices or to wire it, it is necessary to peel off and remove the coated insulation tube, film or the like with a predetermined length from the both ends of the predetermined portion of the conductor.

Devices for removing insulating tubes or films coated on the surface of cables have been developed and used. For example, Korean Patent No. 0310981 (Sep. 21, 2001) and Korean Patent No. 0366533 (Dec. 16, 2002) disclose a technique in which a plurality of cutter blades are transported along a cable to cut and remove an insulating layer covering. Korean Patent No. 0590856 (Jun. 2006) discloses a technique of removing a resin layer covering by pressing a cylindrical cutter rotating on the outer surface of a metal tube.

However, all of the above-mentioned prior art techniques are to remove the insulation coating by using a cutter or a blade when the conductor of the cable is circular in cross section. However, when the conductor is a rod, a bar, or a pipe having a polygonal cross section, for example, a rectangular cross section, it has been difficult to remove the insulating cover. In particular, it is difficult to remove an insulation tube (usually using an air shrink tube) coated on a rectangular pipe outer peripheral surface having a relatively large cross-sectional area.

That is, the operator fixes the rectangular conductor using a jig and moves the cutter tool up and down, left and right, and removes the insulating coating by a predetermined length from the end of the conductor. Therefore, it takes a long time to work and the work efficiency is low, so that there is a drawback that productivity is limited when a large amount of insulating cloth is removed.

Therefore, there is a demand for development of an insulation coating removing technique that can quickly and accurately remove a large amount of insulation coating of a conductor having a polygonal cross section.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned drawbacks of the prior art, and it is an object of the present invention to provide an insulation sheath removing apparatus which can easily and effectively cut and remove an end portion of an insulation sheath applied to a conductor having a polygonal cross- .

Another object of the present invention is to provide a method of removing an insulating coating which can easily and efficiently cut and remove an insulating coating of a conductor of a polygonal cross section.

According to one aspect of the present invention, there is provided an insulation sheath removing apparatus comprising: a frame; A cutter unit installed on the frame to cut an insulating coating of a workpiece having a polygonal cross section; A transfer unit for reciprocating the cutter unit at a predetermined distance on the frame; A workpiece supporting unit for supporting and rotating the workpiece at a working position for cutting an insulating coating with respect to the cutter unit; And a control unit for controlling driving of the units.

The cutter unit according to one embodiment of the present invention includes a first motor capable of forward and reverse rotations, a first motor coupled to a rotating shaft of the first motor, a rotary bar rotatable between a working position for cutting the insulation coating of the work, And a cutter blade rotatably coupled to the other end of the pivoting bar to cut the insulating coating of the workpiece.

The transfer unit of the present invention may include a base for supporting the cutter unit on a frame, and a second motor for generating a driving force to slide the base relative to the frame.

Here, the conveying unit may further include a belt moving by the rotation of the second motor, and a pulley installed in the frame to hang the belt.

The workpiece supporting unit of the present invention includes a support base capable of reciprocating in the width direction of the frame, a pair of support pins rotatably supporting the workpiece with respect to the support base, And a third motor for driving the motor.

The workpiece support unit may further include a pneumatic cylinder that moves the support over the frame to adjust the distance between the support pins.

In addition, adjacent to the third motor, a rotary encoder may be further included to detect the rotational angular position of the workpiece.

In addition, it may further include a plurality of rollers provided on the frame so as to be rotatable at predetermined intervals in order to transport the workpiece from the frame to the work position.

The control unit according to an embodiment of the present invention may further include an input / output unit for inputting and outputting a control command and a display unit for displaying a control status.

According to another aspect of the present invention, there is provided a method of removing an insulating coating, comprising the steps of: (S1) moving a workpiece having a polygonal cross-section and having an insulating coating applied thereto to a working position; ); Transferring the cutter blade to an operation position of one end of the workpiece to be cut (S3); (S4) rotating the outer periphery of the cutter blade to a working position where the outer periphery of the cutter blade is pressed onto the insulating coating surface of the workpiece; (S6) cutting the insulation coating in accordance with the rotation angle of the workpiece (S6); rotating the workpiece by 360 degrees to completely cut the insulation coating; (S8) of transferring the cutter blade to the work position of the other end of the workpiece to be cut through the insulating sheath; Steps S4 to S6 are performed in the same manner A step (S9) of cutting an insulating sheath from the other end of the workpiece, a step (S10) of removing an insulating sheath from both ends of the workpiece, and a step of removing and attaching the workpiece W S11) < / RTI >

The present invention can use a step motor for rotational driving in any one of steps S2, S4, S5, and S7.

The step motor may be controlled by a PWM method, and a rotary encoder may be used to detect the rotation angle of the step motor.

The present invention having the above-described structure can easily remove the insulation coating while rotating a workpiece having a polygonal cross section, so that the work efficiency is high, and thus it can be universally used for mass production.

BRIEF DESCRIPTION OF THE DRAWINGS Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front view schematically illustrating the configuration of an insulation sheathing apparatus according to an embodiment of the present invention; FIG.
Fig. 2 is a plan view of Fig. 1. Fig.
Fig. 3 is an enlarged side view of Fig. 1, in which a cutter unit according to an embodiment of the present invention is located at a working position.
Fig. 4 is a partial enlarged view of Fig. 3, which is a side view illustrating that the cutter unit according to the embodiment of the present invention is located at the standby position.
5 is a block diagram of a control unit of an insulation sheathing apparatus according to an embodiment of the present invention.
6 is a flowchart illustrating a method of removing an insulating coating according to an embodiment of the present invention.

1 is a front view schematically illustrating a configuration of an insulation sheath removing apparatus 10 according to an embodiment of the present invention. An insulation sheath removing apparatus (10) of the present invention comprises a frame (12); A cutter unit (20) provided on the frame (12) for cutting and removing an insulating coating of a workpiece (W) having a polygonal cross section; A transfer unit (30) for transferring the cutter unit (20) on the frame (12), a workpiece rotation support unit (40) for supporting and rotating the workpiece (W) And a control unit 50 (shown in Fig. 5) for controlling the driving of the units 20, 30, and 40. Fig.

The workpiece W used in the present invention is a hollow or solid bar or rod having a polygonal cross section and has an insulating coating formed on its outer surface in the longitudinal direction. In the embodiment of the present invention, the rectangular cross section is exemplified. However, the present invention is not limited to this, and the present invention can be applied to a case where the cross section includes a polygon such as a triangle, a pentagon, , Which can be easily modified by changing the control program of the control unit 50. [

The frame 12 according to the embodiment of the present invention is a combination of a plurality of horizontal and vertical beams combined and the frame 12 is connected to the vertical frame 14, And a horizontal frame 16. The vertical frame 14 includes a pair of front vertical frames 14a and a pair of rear vertical frames 14b higher in height.

The horizontal frame 16 includes an upper horizontal frame 16a connecting the pair of rear vertical frames 14b and connecting the cutter unit 20 to the front and rear vertical frames 14a and 14b, An intermediate horizontal frame 16b having four rectangular pieces on which the work rotating support unit 30 is mounted, and a lower horizontal frame 16c having four rectangular frames.

The cutter unit 20 according to the embodiment of the present invention is supported on the base 21 so as to be able to slide by a predetermined distance by the transfer unit 30 with respect to the frame 12. The cutter unit 20 includes a cutter blade 22 for cutting off the insulation coating of the workpiece W. [ As shown in Fig. 3, the cutter blade 22 is fixedly coupled to one end of a pivoting bar 24 which rotates up and down in a predetermined angle range, and the other end of the pivoting bar 24 is connected to a first motor 26). 3, the cutter blade 22 is rotated downward toward the workpiece W so as to be brought into contact with the workpiece W at a work position where the cutter blade 22 is rotated downward toward the workpiece W, (The state shown in Fig. 3), so that it is possible to carry out the cutting operation of the insulating coating. Conversely, when the first motor 26 is rotated in the reverse direction and the pivoting bar 24 is rotated in the clockwise direction, the cutter blade 22 is moved to the standby position (the state shown in Fig. 4) where the cutter blade 22 separates from the workpiece W do.

The transfer unit 30 moves the cutter unit 20 to the left and right on the upper horizontal frame 16a between the pair of rear vertical frames 14b. 1, the conveying unit 30 includes a second motor 32 installed on the upper portion of the rear vertical frame 14b and a belt 32 connected to the rotary shaft 32a of the second motor 32 34 and a pulley 36 mounted on the rear vertical frame 14b for holding the belt 34 thereon. The cutter unit 20 moves the transfer unit 20 coupled to the belt 34 via the base 21 together with the belt 34 by the rotational drive of the second motor 32 to the upper horizontal frame 16a 1 in Fig. 1).

On the other hand, as shown in Figs. 1-4, the work W rotation supporting unit 40 includes a pair of support pins 41 in the width direction (left and right direction in Fig. 1) of the frame 12, The workpiece W is supported and rotated. That is, the left support pin 41 is provided on the support base 43 which is movable in the width direction of the frame 12 via the LM guide 42 on the intermediate horizontal frame 16b, and the left support pin 41 The pneumatic cylinder 47 is connected to the rear end of the pneumatic cylinder 47. [ The right support pin 41 is connected to the third motor 49 via the coupling 48 so that the work W is supported between the support pins 41 in accordance with the operation of the third motor 49 So that it can be rotated in one state.

The distance between the support pins 41 can be adjusted in accordance with the length of the workpiece W by operating the pneumatic cylinder 36 to drive the LM guide 42 on the intermediate horizontal frame 16b via the LM guide 42 The left support pin 41 can be moved relative to the right support pin 41 to adjust the distance therebetween.

On the other hand, a plurality of rollers 18 are rotatably provided on the intermediate horizontal frame 16b so as to carry the workpiece W on the frame 12. An embodiment of the present invention may further include a pallet 18 for allowing the operator to easily place the workpiece W on the roller 17.

5 is a block diagram of a control unit 50 of an insulation sheath removal apparatus according to an embodiment of the present invention. The control unit 50 is provided with a control unit 51 for applying a control signal to the cutter unit 20, the transfer unit 30 and the workpiece W rotation support unit 40. [ The first, second, and third motors 24, 32, 46 employed in the units 20, 30, 40 may use step motors controlled by a PWM method, but the present invention is not limited to this, May be employed. A rotary encoder 52 is provided adjacent to the third motor 46 of the rotary support unit 40 for detecting the rotational angular position of the workpiece W.

An input / output unit 53 for inputting and outputting a control command by an operator is connected to the control unit 51. The input / output unit 53 may include a device such as a keyboard or a printer. The control unit 51 is electrically connected to a display unit 54 that displays the control status and the operation state of the insulation sheathing device.

FIG. 6 is a flowchart illustrating a method of removing an insulating coating according to an embodiment of the present invention. Referring to FIG. 6, a method of removing an insulating coating of the present invention will be described.

First, the worker places the workpiece W on which the insulating coating is wound on the outer circumferential surface of the conductor of the rectangular cross section on the pallet 18, moves on the roller 17, and transfers the workpiece W to the work position (step S1). The pneumatic cylinder 47 of the workpiece rotary support unit 40 is driven to adjust the distance between the pair of support pins 41 and the workpiece W is rotatably mounted between the support pins 41 (Step S2).

Next, the second motor 32 of the transfer unit 30 is driven so that the cutter unit 30 is cut off from the one end (the right end in Figs. 1 and 2) of the workpiece W by cutting the insulating sheath To the first working position (step S3). The first motor 24 of the cutter unit 20 located at the first work position is driven to rotate the pivoting bar 26 so that the outer periphery of the cutter blade 22 comes into contact with the surface of the workpiece W S4). At this time, the outer periphery of the cutter blade 22 is pressed by its own weight to closely press the outer circumferential surface of the insulating coating of the workpiece W.

Next, the third motor 49 of the workpiece rotation support unit 40 is driven to rotate the workpiece W between the support pins 41 at a predetermined angle (step S5). The rotation angle position of the work W in step S5, that is, the rotation angle of the third motor 49 is detected by the rotary encoder 52 and outputted to the control section 51. [ A control signal from the control unit 51 is applied to the first motor 24 of the cutter unit 30 to drive the first motor 24 in accordance with the rotation angle of the third motor 49 to rotate the rotation bar 26 The cutter blade 22 is brought into close contact with the outer circumferential surface of the workpiece W so that the insulating coating at one end of the workpiece W is cut out (step S6).

The cutter blade 22 is driven by driving the first motor 24 of the cutter unit 20 when the insulating coating is completely cut as the rectangular workpiece W is completely rotated by repeating steps S5 and S6, Is separated from the outer circumferential surface of the workpiece W and moved up to the standby position (step S7).

Next, the cutter unit 20 is transferred by using the transfer unit 30 to the second working position where the insulating coating is cut off from the other end (the left end in Figs. 1 and 2) of the workpiece W Step S8). Subsequently, steps S4 to S6 are performed in the same manner to cut the insulating coating from the other end of the workpiece W (step S9).

Thus, when the cutting work of the insulating coating is completed from both ends of the workpiece W, the insulating cloth is removed from both ends of the workpiece W using a tool (step S10). Then, the workpiece W having completed the insulation coating removal operation is detached between the support pins 42 by operating the workpiece rotation support unit 40 (step S11).

The present invention is not limited to the above-described embodiments, and various modifications may be made.

For example, in the embodiment of the present invention, the cross section of the workpiece W is rectangular. However, in the case of the workpiece W which is a conductor having a polygonal cross section such as a triangle, It is needless to say that the control command can be modified and applied through the input / output unit 53 of the control unit 50.

The caster 60 may be rotatably attached to the lower portion of the vertical frame 14 in order to change the installation position of the insulating sheathing apparatus 10 of the present invention in the work place.

As a modification of the present invention, an actuator such as a conveyor belt or a pneumatic cylinder may be additionally provided for transferring the pallet 18 on which the workpiece W is mounted on the roller 17. [

It is also possible to raise the workpiece W mounted on the pallet 18 to the working position of the support table 41 or to lower the workpiece W on which the work of removing the insulation coating has been completed and place the workpiece W on the pallet 18 again The workpiece W including the bevel gear may be separately provided.

Instead of the LM guide 42 for transferring the support table 43, a ball screw may be used to move the support table 43 to the left and right to adjust the distance between the support pins 41.

The above description describes one preferred embodiment of the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

20: cutter unit 22: cutter blade
24: Motor 26: Rotating bar
30: transfer unit 32: second motor
40: work piece rotation support unit 41: support pin
43: support member 49: third motor
47: pneumatic cylinder 50: control unit

Claims (12)

frame;
A cutter unit installed on the frame to cut an insulating coating of a workpiece having a polygonal cross section;
A transfer unit for reciprocating the cutter unit at a predetermined distance on the frame;
A workpiece rotating support unit for supporting and rotating the workpiece at a working position for cutting the insulating coating with respect to the cutter unit; And
And a control unit for controlling driving of the units. The method according to claim 1,
Wherein the cutter unit includes a first motor capable of normal and reverse rotations, a rotation bar coupled at one end to the rotation axis of the first motor to rotate between a working position for cutting the insulation coating of the work and a standby position, And a cutter blade rotatably coupled to the cutter blade to cut an insulating sheath of the workpiece. The method according to claim 1,
The transfer unit includes a base for supporting the cutter unit on a frame, and a second motor for generating a driving force to slide the base relative to the frame. The method of claim 3,
Wherein the transfer unit further comprises a belt moving by the rotation of the second motor and a pulley provided in the frame to hang the belt. The method according to claim 1,
The workpiece rotating support unit includes a support base capable of reciprocating in the width direction of the frame, a pair of support pins rotatably supporting the workpiece with respect to the support base, and a pair of support pins rotatably supporting the workpiece supported by the support base And a motor. 6. The method of claim 5,
Wherein the workpiece rotation support unit further comprises a pneumatic cylinder that moves the support over the frame to adjust the distance between the support pins. 6. The method of claim 5,
Further comprising a rotary encoder for detecting a rotational angular position of the workpiece adjacent the third motor. The method according to claim 1,
Further comprising a plurality of rollers rotatably mounted at regular intervals on the frame for transporting the workpiece to a work position on the frame. The method according to claim 1,
Wherein the control unit further includes an input / output unit for inputting and outputting a control command and a display unit for indicating a control status. (S1) moving a workpiece having a polygonal cross section and having an insulating coating applied thereto to a working position;
Rotatably mounting a workpiece between support pins (S2);
Transferring the cutter blade to a first working position of the workpiece to be cut (S3);
(S4) rotating the outer periphery of the cutter blade to a position where the outer periphery of the cutter blade is pressed onto the insulating coating surface of the workpiece;
Rotating the workpiece at a predetermined angle (S5);
Cutting the insulation coating in accordance with the rotation angle of the workpiece (S6);
(S7) rotating the workpiece by 360 degrees to separate the cutter blade from the workpiece and turn it to the standby position when the insulation coating is completely cut off;
Transferring the cutter blade to a second working position of the workpiece to be cut (S8);
(S9) cutting the insulating coating from the other end of the workpiece by performing steps S4 to S6 in the same manner;
Removing the insulating coating from both ends of the workpiece (S10); And
(S11) of removing the workpiece (W) having completed the insulation coating removal work. 11. The method of claim 10,
Wherein a step motor is used for rotational driving in any one of steps 2, 4, 5, and 7. 12. The method of claim 11,
Wherein the step motor is controlled by a PWM method and a rotary encoder is used to detect a rotation angle of the step motor,
KR1020150127658A 2015-09-08 2015-09-08 Apparatus for stripping insulated coating and method thereof KR101841524B1 (en)

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KR1020150127658A KR101841524B1 (en) 2015-09-08 2015-09-08 Apparatus for stripping insulated coating and method thereof

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KR20170030284A true KR20170030284A (en) 2017-03-17
KR101841524B1 KR101841524B1 (en) 2018-03-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109335184A (en) * 2018-11-30 2019-02-15 杭州西奥电梯有限公司 A kind of workpiece film removing device and work transfer device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100823161B1 (en) * 2007-01-11 2008-04-18 주식회사 이니텍기계 Cover coating shedding device of pipe
JP5781908B2 (en) * 2011-12-06 2015-09-24 日特エンジニアリング株式会社 Wire stripping apparatus and stripping method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109335184A (en) * 2018-11-30 2019-02-15 杭州西奥电梯有限公司 A kind of workpiece film removing device and work transfer device

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