JP2007166871A - Covering-removing method for covered wire, treatment method for covered wire terminal part, and device thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a covering removing method for a covered wire, capable of properly removing the covered portion in the middle part of a covered wire, a treatment method for a covered wire terminal part, and to provide a device thereof. <P>SOLUTION: The covering removing device 100 for a covered wire includes an annular slit forming device 110, forming an annular slit in the covering member 12, up to a core wire at a constant interval in the middle portion of displaced covering wire 10; a linear slit formation device 120, forming a linear slit 15 in the longitudinal direction of the covering member 16 between the two annular slits 13, 14 that are formed; and a covering member peeling device 130 for removing the covering member 16 from the core wire, by moving the end-edge parts of the covering member 16, positioned in between the two annular slits from both ends to the center portion, and a controller 140 for controlling each of devices 120, 130 and 140. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for removing a coated electric wire, a method for treating an end of the coated electric wire, and an apparatus therefor.

  As an electric wire, there is one in which a soft copper stranded wire is used as a core wire and the periphery thereof is covered with a synthetic resin covering member made of silicon rubber or the like. Such an electric wire may be cut, the coating is removed at the end, and connected to the terminal of the electric device. In such a case, usually, the electric wire is first cut into a required length, and the covering portion of the electric wire is removed by a known coating removing device to expose the core wire. Thereafter, the exposed core wire is welded and hardened and connected to the terminal of the electric device.

  When such a treatment is performed, there is a problem that welding and hardening cannot be easily performed because the core wire made of soft annealed copper cannot be gathered simply by removing the covering of the end portion of the electric wire.

  For this reason, it is considered to remove the coating at the intermediate portion of the electric wire, perform welding hardening with the exposed core wire connected, and then cut at the portion where the welding hardening is performed.

  Thus, there exists a thing of patent document 1 as a coating | coated part removal method which removes coating | cover in the center part of an electric wire. In Patent Document 1, a first step of forming a linear slit in the longitudinal direction of the coated wire with respect to the intermediate coating of the coated wire by the linear slit forming blade of the linear slit forming device, and the linear slit forming device A second step of forming a first annular slit with respect to a coating corresponding to a tip of a linear slit formed in an intermediate coating of the coated wire by an annular slit forming blade of an annular slit forming device disposed on the downstream side; In a state where the annular slit forming blade is held at the cutting position, the annular slit forming blade and the covered wire are relatively moved by the relative movement mechanism so that the annular slit forming blade is directed toward the linear slit, thereby corresponding to the linear slit. A third step of peeling the tip of the intermediate coating partway, and a second ring by a plurality of annular slit forming blades for the coating corresponding to the rear end of the linear slit In the fourth step of forming the slit, and with the annular slit forming blade held at the cutting position, the annular slit forming blade and the coated wire are moved toward the linear slit by the relative movement mechanism. It describes what comprises a fifth step of removing the intermediate coating corresponding to the linear slit from the core wire by relative movement.

Japanese Patent Application No. 05-122889

  However, since the conventional covering portion removing method is configured to relatively move the annular slit forming blade and the electric wire, the annular slit forming blade and the core wire may come into contact with each other and the annular slit forming blade may be damaged. In such a case, the covering member cannot be removed satisfactorily.

  Then, an object of this invention is to provide the coating removal method of the covered electric wire which can remove a coating | coated part favorably in the intermediate part of a covered electric wire, the processing method of the end part of a covered electric wire, and its apparatus.

  The present invention relates to a method for removing a sheath of a covered electric wire, and an annular slit forming step for forming an annular slit in a middle portion of the arranged covered wire at a predetermined interval in the covering member to reach the core wire, and the two formed annular shapes A linear slit forming step for forming a linear slit along the longitudinal direction in the covering member between the slits, and an end edge portion of the covering member located between the two annular slits is moved from both ends to the central portion so that the covering member is a core wire. And a covering member peeling step for removing the covering member.

  Further, the present invention is a method for treating an end portion of a covered electric wire, and an annular slit forming step for forming an annular cut at a predetermined interval in a covering member of the arranged covered electric wire to reach the core wire, and two formed A linear slit forming step for forming a linear slit along the longitudinal direction of the covering member between the annular slits, and an edge of the covering member located between the two annular slits are moved from both ends to the central portion so that the covering member is moved. A covering member peeling step for removing from the core wire, a welding hardening step for welding and solidifying a predetermined portion of the core wire from which the covering member has been removed, and a cutting step for cutting the core wire at the welded portion. Features.

  Furthermore, the present invention is an apparatus for removing a sheath of a covered electric wire, and is formed with an annular slit forming device that forms an annular incision that reaches a core wire at a predetermined interval in a covering member at an intermediate portion of the arranged covered electric wire. A linear slit forming device for forming a linear slit along the longitudinal direction of the covering member between the two annular slits, and an end edge of the covering member located between the two annular slits from the both ends to the central portion to cover the covering member And a covering member peeling device for removing the wire from the core wire.

  And the present invention is a covering portion removing device for the covered electric wire, a welding and fixing device for welding and fixing a predetermined portion of the core wire from which the covering member has been removed, and a cutting device for cutting the core wire at the welded and fixed portion. The processing apparatus of the end part of a covered electric wire characterized by including these.

  According to the present invention, it is possible to satisfactorily remove the covering portion at the intermediate portion of the covered electric wire.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration of a sheath removal apparatus for a covered electric wire according to an embodiment, where (a) is a plan view, (b) is a side view, (c) is a front view, and FIG. 2 is a sheath according to the embodiment. FIG. 3 is a plan view showing the configuration including the control system of the coated wire sheath removing apparatus according to the embodiment.

  The sheathed wire removal device 100 according to the present embodiment has an annular shape that forms annular slits 13 and 14 that are annular notches that reach the core wire 11 at a certain interval in the sheathing member 12 at an intermediate portion of the disposed sheathed wire 10. A slit forming device 110, a straight slit forming device 120 that forms a straight slit 15 along the longitudinal direction of the covering member 16 between the two formed annular slits 13, 14, and a space between the two annular slits 13, 14. And a covering member peeling device 130 that removes the covering member 12 from the core wire 11 by moving the covering member 16 positioned at the center from both ends to the center.

  In this example, the annular slit forming device 110 includes two blade members 111, 112 and blade members 113, 114 as a pair, and two pairs are provided at predetermined intervals. 113 and 114 are provided with a semi-circular blade portion having a shape approximating the contour shape of the core wire 11 at the joint portion of the two blade members, and the blade members 111 and 112 and the blade members 113 and 114 are arranged in an annular cutting position. And air cylinders 115 and 116 as blade member drive mechanisms that move to the standby position.

  The straight slit forming device 120 includes a straight blade 121 formed in the extending direction of the covered electric wire 10 and is an air cylinder 122 that is a straight blade driving mechanism that moves the straight blade to a straight cutting position and a standby position. It has.

  And the said covering member peeling apparatus 130 is inserted in the said annular slits 13 and 14, The two insertion board parts 131 and 132 provided with the substantially U-shaped insertion groove parts 133 and 134 arrange | positioned around the said core wire, An insertion plate drive that moves the insertion plate portion to a standby position, an insertion position for inserting the annular slits 13 and 14, and a covering member removal position (see FIG. 3) for narrowing the interval between the two insertion plate portions 131 and 132. A drive mechanism 135 that is a mechanism is provided. The drive mechanism 135 moves the insertion plate portions 131 and 132 from the standby position through the insertion position to the covering portion removal position, and includes an air cylinder and a known mechanism. A blade for cutting the covering member 16 located inside the annular slits 13 and 14 is formed inside the annular slits 13 and 14.

  In this example, the air cylinders 115 and 116 of the annular slit forming device 110, the air cylinder 122 of the linear slit forming device 120, and the drive mechanism 135 of the covering member peeling device 130 are controlled to follow a predetermined procedure. A control device 140 is provided as control means for driving the devices. The control device 140 is composed of a sequencer in which the operation order of each air cylinder is set in advance.

  Next, the operation of the covered wire removal apparatus according to this example will be described. First, the covered electric wire 10 is arranged in the covered wire removal device 100, and the covered electric wire is fixed outside the coating removal device by a known fixing means using an air cylinder, for example. FIG. 4 is a timing chart for explaining the operation of the covered wire removal apparatus 100 according to the embodiment. 5 to 9 are schematic perspective views showing the movement of each member of the coating removal apparatus 100 according to the embodiment.

  First, in the standby state, the blade members 111 and 112 and the blade members 113 and 114 of the annular slit forming device 110 and the straight blade 121 of the linear slit forming device 120 are respectively connected to the air cylinders 115 and 116, as shown in FIG. The air cylinder 122 and the drive mechanism 135 are arranged at the standby position.

  Under the control of the control device 140, the air cylinders 115 and 116 of the two pairs of annular slit forming devices 110 are moved from the standby position to the annular cutting position as shown in FIG. Then, two annular slits 13 and 14 are formed at predetermined intervals (annular slit formation in FIG. 4).

  Next, under the control of the control device 140, as shown in FIG. 7, the air cylinder 122 of the linear slit forming device 120 moves the linear blade 121 from the standby position to the linear cutting position, and is formed on the covering member 12 of the covered electric wire 10. A straight slit 15 is formed in the covering member 16 between the annular slits 13 and 14 (horizontal slit formation in FIG. 4). As a result, the covering member 16 is formed with two annular slits 13 and 14 and a linear slit 15 connecting these annular slits 13 and 14.

  Further, under the control of the control device 140, as shown in FIG. 8, the drive mechanism 135 of the covering member peeling device 130 inserts the two insertion plates into the annular slit formed in the covering member of the covered electric wire. (Fig. 4 Insertion plate insertion). At this time, the straight blade driving device of the horizontal slit forming device moves the straight blade to the standby position (insertion plate insertion in FIG. 4).

  Then, under the control of the control device 140, as shown in FIG. 9, the drive mechanism 135 of the covering member peeling device 130 is moved so that the two insertion plate portions 131 and 132 are close to each other, and the annular slits 13 and 14 are preliminarily moved. And the covering member 16 in which the linear slits 15 are formed are moved in the center direction and separated from the core wire (in the vicinity of the insertion plate in FIG. 4). As a result, the covering member 16 at the center of the covered electric wire 10 is reliably removed from the core wire 11.

  According to this example, the annular slit forming device and the linear slit forming device are not brought into direct contact with the core wire of the covered electric wire, and damage to both devices can be minimized.

  In addition, a welding compaction device (not shown) that welds and fixes a substantially central portion of the core wire 11 from which the coating member 16 has been removed to the coating removal device 100 according to this example, and a cutting device (not shown) that cuts the core wire at the welded and fixed location. Can be used as a terminal treatment apparatus for a covered electric wire, and the terminal treatment for removing the coating, welding and solidifying can be reliably performed.

It is a figure which shows the structure of the coating removal apparatus of the covered electric wire which concerns on embodiment, (a) is a top view, (b) is a side view, (c) is a front view. It is a side view which shows the structure containing the control system of the coating removal apparatus of the covered electric wire which concerns on embodiment. It is a top view which shows the structure containing the control system of the coating removal apparatus of the covered electric wire which concerns on embodiment. It is a timing chart explaining the action | operation of the coating removal apparatus of the covered electric wire which concerns on embodiment. It is a schematic perspective view which shows arrangement | positioning of the blade member of the covering removal apparatus of the covered electric wire which concerns on embodiment, a linear blade, and an insertion board. It is a schematic perspective view which shows the motion of the blade member of the covering removal apparatus of the covered electric wire which concerns on embodiment. It is a schematic perspective view which shows a motion of the linear blade of the coating removal apparatus of the covered electric wire which concerns on embodiment. It is a schematic perspective view which shows a motion of the insertion board of the covered electric wire which concerns on embodiment. It is a schematic perspective view which shows a motion of the insertion board of the covered electric wire which concerns on embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Covered electric wire 11 ... Core wire 12 ... Cover member 13, 14 ... Ring slit 15 ... Linear slit 16 ... Cover member 100 ... Cover removal apparatus 110 ... Ring slit formation apparatus 111, 112 ... Blade member 113, 114 ... Blade member 115, 116: Air cylinder (blade member drive mechanism)
120 ... Linear slit forming device 121 ... Linear blade 122 ... Air cylinder (linear drive mechanism)
130 ... Cover member peeling devices 131, 132 ... Insert plate part 135 ... Drive mechanism (insert plate drive mechanism)
140... Control device (control means)

Claims (8)

An annular slit forming step of forming an annular slit at a certain interval in the covering member at an intermediate portion of the arranged covered electric wire,
A linear slit forming step of forming a linear slit along the longitudinal direction in the covering member between the two formed annular slits;
A covering member peeling step of removing the covering member from the core wire by bringing the edge of the covering member located between the two annular slits from both ends to the central portion;
A method for removing the coating of a covered electric wire, comprising: An annular slit forming step for forming an annular cut at a certain interval in the covering member of the covered electric wire arranged to reach the core wire;
A linear slit forming step for forming a linear slit along the longitudinal direction of the covering member between the two formed annular slits;
A covering member peeling step of removing the covering member from the core wire by bringing the edge of the covering member located between the two annular slits from both ends to the central portion;
Welding consolidation step of welding and solidifying a predetermined portion of the core wire from which the covering member has been removed;
A cutting step of cutting the core wire at the welded portion;
A method for treating an end portion of a covered electric wire, comprising: An annular slit forming device that forms an annular cut at a certain interval in the covering member at an intermediate portion of the arranged covered electric wire to reach the core wire;
A linear slit forming device for forming a linear slit along the longitudinal direction of the covering member between the two formed annular slits;
A covering member peeling device that removes the covering member from the core wire by moving the edge of the covering member located between the two annular slits from both ends to the center portion;
An apparatus for removing a sheath of a covered electric wire, comprising: The annular slit forming device is provided with two pairs of two blade members at predetermined intervals, and the pair of blade members has a blade portion having a shape approximate to the contour shape of the core wire at the joint portion of the two blade members And a blade member drive mechanism that moves the two blade members to a cutting position and a standby position,
The linear slit forming device includes a linear blade formed in the extending direction of the covered electric wire, and includes a linear blade driving mechanism that moves the linear blade to a cutting position and a standby position.
The covering member peeling device includes two insertion plate portions each having an insertion groove portion that is inserted into the annular slit and is disposed around the core wire, and the insertion plate portion is disposed at a standby position and around the core wire. An insertion plate driving mechanism that moves to an insertion position and a covering member removal position in which the interval between the two insertion plate portions is narrowed.
A sheath removal apparatus for a covered electric wire according to claim 3. Control means for controlling the annular slit forming device, the linear slit forming device, and the covering member peeling device to drive the devices according to a predetermined procedure;
The sheath removal apparatus for coated wires according to claim 4. At least one of the blade member drive mechanism, the linear blade drive mechanism, and the insertion plate drive mechanism uses a fluid cylinder as a drive source,
The covering portion removing apparatus for a covered electric wire according to claim 4 or 5. A device for removing a covering portion of a covered electric wire according to any one of claims 4 to 6,
A welding compaction device for welding and compacting a predetermined portion of the core wire from which the covering member has been removed;
A cutting device for cutting the core wire at the welded portion;
An apparatus for treating an end portion of a covered electric wire, comprising: 8. The apparatus for treating an end portion of a covered electric wire according to claim 7, wherein the core wire of the electric wire is an annealed copper stranded wire.

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