Water-stopping treatment device for electric wires

Abstract

To provide a water stop treatment apparatus for electric wires that reduces a manual work load and makes it possible to acquire water stop treatment parts having stable quality.SOLUTION: A water stop treatment apparatus for electric wires comprises: a water stop agent application mechanism E1 for immersing a water stop treatment receiving part of a tip Wa of an electric wire W in a water stop agent 31 in a low viscosity liquid state to apply the water stop agent on the water stop treatment receiving part; a cap attachment mechanism E2 for covering the tip of the electric wire on which the water stop agent is applied with a heat shrinkable cap C; a heater 40 for performing heat treatment on the tip of the electric wire covered with the heat shrinkable cap; and a transfer mechanism E3 that moves the tip of the electric wire from a work position at which the water stop agent is applied and of being covered with the heat shrinkable cap, to the heater and moves the tip of the electric wire to the original work position after the heat treatment by the heater.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a waterproofing treatment device for an electric wire for performing waterproofing treatment on the tip of an electric wire. [Background technology]

[0002] When moisture comes into contact with the joints of the core wires of an electric wire, the moisture may seep into the gaps between the core wires due to capillary action and cause adverse effects on other parts. For this reason, in the case of electric wires for vehicles, it is common to apply a waterproofing treatment to the joints of the core wires depending on the wiring location (see, for example, Patent Document 1).

[0003] As an example of a waterproofing treatment, a common practice is to immerse the waterproofing treatment part at the end of an electric wire in a liquid tank filled with a low-viscosity liquid waterproofing agent such as an instant adhesive, and after immersion, cover the immersed part with a heat-shrinkable cap (heat-shrinkable tube) and heat it with a heater to dry and harden the waterproofing agent and protect the waterproofing part by shrinking the heat-shrinkable cap, thereby obtaining waterproofing performance.

[0004] Conventionally, the above-mentioned waterproofing treatment has been performed manually by workers, but this involves a large workload, and because it is done manually, there are problems in that the workers need to gain experience in order to provide stable quality. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2013-235715 A Summary of the Invention [Problem to be solved by the invention]

[0006] As described above, conventional water treatment of electric wires requires manual work by workers, which results in a large workload and makes it difficult to provide consistent quality.

[0007] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a waterproofing treatment device for an electric wire that reduces the manual workload and enables a waterproofing treatment treatment of stable quality to be obtained. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the waterproofing treatment device for an electric wire according to the present invention is characterized by the following (1) to (5). (1) A device for waterproofing the tip of an electric wire, comprising: a waterproofing agent application mechanism that applies a waterproofing agent to the waterproofing treated portion of the tip of the electric wire by immersing the waterproofing agent in the waterproofing agent; a capping mechanism for covering the tip of the electric wire coated with the waterproofing agent with a heat-shrinkable cap; a heater for heat-treating the tip of the electric wire covered with the heat-shrinkable cap; a conveying mechanism for moving the tip of the electric wire from a working position where the waterproofing agent is applied and the heat-shrinkable cap is placed on the tip of the electric wire to the heater, and for moving the tip of the electric wire to the original working position after the heat treatment by the heater. Water-stopping treatment device for electric wires.

[0009] (2) The waterproofing agent application mechanism is a waterproofing agent container having an open top and containing a waterproofing agent in a low-viscosity liquid state; a first arm that is positioned above the waterproofing agent container and holds a tip of the electric wire, moves the tip of the electric wire from a horizontal position to a downward position, and in the downward position, lowers the tip of the electric wire to immerse the waterproofing treatment part in the waterproofing agent, and after immersion, raises the tip of the electric wire and moves it from the downward position to a horizontal position; It has The waterproofing treatment device for an electric wire according to (1) above.

[0010] (3) The cap attachment mechanism includes: a second arm that holds the cap at its tip so as to face the tip of the electric wire held in a horizontal orientation by the first arm, and advances the cap relatively toward the tip of the electric wire, thereby placing the cap on the tip of the electric wire to which the waterproofing agent has been applied; The waterproofing treatment device for an electric wire according to (2) above.

[0011] (4) The conveying mechanism includes: With the cap attached to the tip of the electric wire, the first arm and the second arm are moved toward the heater while maintaining their relative positional relationship, and after a heat treatment by the heater, the first arm and the second arm are moved toward the original working position while maintaining their relative positional relationship. The waterproofing treatment device for an electric wire according to (3) above.

[0012] (5) A positioning member is provided for positioning a tip of the electric wire with respect to the first arm when the electric wire is set on the first arm, The positioning member is retractable in a direction perpendicular to the extending direction of the electric wire. A waterproofing treatment device for an electric wire according to any one of (2) to (4) above.

[0013] According to the water-stopping treatment device for electric wire having the above-mentioned configuration (1), a series of water-stopping treatment operations, including a process of applying a water-stopping agent to the water-stopping treatment part at the end of the electric wire, a process of covering the end of the electric wire coated with the water-stopping agent with a heat-shrinkable cap, and a process of introducing the end of the electric wire covered with the cap into a heater for heat treatment, drying and hardening the applied water-stopping agent and shrinking the heat-shrinkable cap, can be performed automatically without manual labor. Therefore, it is possible to reduce the manual workload and to produce a water-stopping treated product of stable quality.

[0014] According to the water-stopping treatment device for electric wires having the above-mentioned configuration (2), when the waterproofing treatment part at the tip of the electric wire is immersed in the waterproofing agent, the first arm only needs to be moved in a vertical plane, so that the operating area in the horizontal plane can be reduced. Also, the waterproofing agent container can be placed directly below the first arm. Therefore, the area occupied by the device in the horizontal plane can be reduced, and the entire device can be made compact.

[0015] According to the water-stopping treatment device for electric wires having the configuration of (3) above, the cap held at the tip of the second arm is advanced in a horizontal plane relative to the first arm, so that the tip of the electric wire to which the water-stopping agent has been applied can be capped. Therefore, the first arm and the second arm only need to be arranged in a mutually opposing relationship in a horizontal plane, which not only makes the device more compact, but also makes it easy for an operator to set the electric wire and the cap by positioning the operator to the side of the position where the first arm and the second arm are lined up.

[0016] According to the watertightness and treatment device for electric wires having the configuration of (4) above, the tip of the electric wire is moved to the heater while maintaining the relative positional relationship between the first arm and the second arm, so the heater can be located immediately to the side of the holding position of the tip of the capped electric wire. This makes it possible to ensure good workability and also narrows the area that needs to be secured for the movement of the arms and the electric wire, contributing to a more compact device.

[0017] According to the waterproofing treatment device for an electric wire having the configuration of (5) above, since the position of the tip of the electric wire when held by the first arm can be determined, the positional relationship between the tip of the electric wire and the cap when the cap held by the second arm is placed on the tip of the electric wire can be kept constant. In other words, since the action of placing the cap can be stopped before the tip of the electric wire hits the innermost end of the cap, the tip of the electric wire will not hit the innermost end of the cap and bend. Effect of the Invention

[0018] According to the present invention, the manual workload can be reduced and a waterproof treatment portion of stable quality can be produced.

[0019] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following description of the preferred embodiment of the present invention (hereinafter, referred to as "embodiment") with reference to the accompanying drawings. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of a waterproof treatment device according to an embodiment of the present invention, where FIG. 1(a) is a plan view and FIG. 1(b) is a side view. [Diagram 2] FIG. 2 is a side view showing a state in which an electric wire is about to be set in a first arm of the water stop treatment device according to the embodiment. [Diagram 3] FIG. 3 is a side view showing a state in which the tip of the electric wire held by the first arm is directed vertically downward as a next step after FIG. [Figure 4] FIG. 4 is a side view showing a state in which the tip of the electric wire held by the first arm is lowered and immersed in a waterproofing agent as a step following that in FIG. [Diagram 5] FIG. 5 is a side view showing a state in which the tip of the electric wire after immersion in the waterproofing agent is raised as a step following that in FIG. [Figure 6] FIG. 6 is a side view showing a state in which the tip of the electric wire after immersion in the waterproofing agent is redirected to a horizontal direction as a step following FIG. [Figure 7] FIG. 7 is a side view showing a state in which the second arm is extended to cover the tip of the electric wire to which the waterproofing agent has been applied with a cap, as a step following that in FIG. [Figure 8] FIG. 8 is a diagram showing a state in which the cap holding chuck located at the tip of the second arm is opened as a step next to that of FIG. 7, where FIG. 8(a) is a side view and FIG. 8(b) is a plan view. [Figure 9] FIG. 9 is a plan view showing a state in which the tip of the capped electric wire has been moved to a heater as a step following that of FIG. [Figure 10]FIG. 10 is a plan view showing a state in which the tip of the electric wire after being heated by the heater is returned to the original working position as a step following that of FIG. [Figure 11] FIG. 11 is a plan view showing the state in which, as the next step after FIG. 10, the cap holding chuck is closed to remove the tip of the second arm from the cap, the wire holding chuck of the first arm is opened, and the processed wire is removed from the first arm. [Figure 12] FIG. 12 is a side view showing a state in which the second arm and the cap holding chuck are being returned to their original positions after processing, as a step subsequent to that shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0022] FIG. 1 is a diagram showing a schematic configuration of a waterproofing treatment device for an electric wire according to an embodiment of the present invention, where FIG. 1(a) is a plan view and FIG. 1(b) is a side view.

[0023] The waterproofing treatment device of this embodiment is an apparatus for performing waterproofing treatment on the core wire joint of an electric wire, and as shown in Figures 1(a) and (b), is equipped with a waterproofing agent application mechanism E1, a cap mounting mechanism E2, a heater 40, and a transport mechanism E3.

[0024] The waterproofing agent application mechanism E1 is configured to apply the waterproofing agent 31 to the waterproofing treated portion at the end Wa of the electric wire W (e.g., the core wire joint portion of multiple coated electric wires) by immersing the waterproofing agent 31 in a low-viscosity liquid state.

[0025] The cap attachment mechanism E2 is adapted to cover the tip Wa of the electric wire W coated with the waterproofing agent 31 with a heat-shrinkable cap (hereinafter, also simply referred to as a "cap") C. This cap C is formed in a cylindrical shape, has an opening Cs at the front end, and has a small projection Ct for engagement at the closed rear end.

[0026] In addition, the heater 40 heats the end Wa of the electric wire W covered with the heat-shrinkable cap C to dry and harden the waterproofing agent 31 applied to the end Wa of the electric wire W and to thermally shrink the heat-shrinkable cap C.

[0027] Furthermore, the conveying mechanism E3 is for moving the tip Wa of the electric wire W from the working position where the waterproofing agent 31 is applied and the heat-shrinkable cap C is covered to the heater 40, and after the heating treatment by the heater 40, for moving the tip Wa of the electric wire W to the original working position.

[0028] In this embodiment, the work position N is set in front of the worker's standing position M, and the waterproofing agent application mechanism E1 is disposed on the right side of the work position N, and the cap attachment mechanism E2 is disposed on the left side.

[0029] The work performed by the worker here is mainly to set the electric wire W in the waterproofing agent application mechanism E1 and to remove it after treatment, and to set the heat-shrinkable cap C in the cap attachment mechanism E2. In addition, the heater 40 is disposed on the other side (rear side) of the work position N as viewed from the standing position M of the worker.

[0030] A more specific configuration will be described below. First, the waterproofing agent application mechanism E1, located to the right of the front of the worker's standing position M, has a waterproofing agent container 30 that is open at the top and contains a low-viscosity liquid waterproofing agent 31 inside, and a first arm 10 that is located above the waterproofing agent container 30 and holds the tip Wa of the electric wire W.

[0031] The first arm 10 moves the tip Wa of the electric wire W from a horizontal position to a downward position, and lowers the tip Wa of the electric wire W in the downward position, thereby immersing the waterproof treated portion of the tip Wa of the electric wire W in the waterproofing agent 31. After immersion, the tip Wa of the electric wire W is raised and moved from the downward position to a horizontal position. The first arm 10 is configured to perform this series of operations continuously.

[0032] In order to perform this series of operations, the first arm 10 is equipped with a gutter-shaped straight guide 11 that supports the tip Wa of the electric wire W in a straight line toward the left side in the horizontal direction, an open-close type electric wire holding chuck 12 that holds the base end side of the electric wire W in front of the straight guide 11, a vertical swing base 13 that supports the straight guide 11 and the electric wire holding chuck 12, and a lifting mechanism 15 for raising and lowering the main body of the swing mechanism 14 of the vertical swing base 13.

[0033] A tip end Wa of the electric wire W set on the first arm 10 is guided by a horizontally extending straight guide 11 and extended horizontally to the left. Then, at the base end side of the straight guide 11, the electric wire W is horizontally clamped and held by a pair of gripping blocks of an electric wire holding chuck 12.

[0034] When setting the electric wire W on the first arm 10, it is desirable to position the tip Wa of the electric wire W with respect to the first arm 10. For this reason, the water stop treatment device of this embodiment is provided with a movable positioning member 50. This positioning member 50 is installed so as to be able to move to a required position (position for positioning) when necessary, and to be able to retreat vertically downward with respect to the extending direction of the electric wire when not necessary so as not to interfere with other operations.

[0035] In addition, an axis alignment hold 60 is provided between the positioning member 50 and the tip of the straight guide 11 for aligning the axis of the tip Wa of the electric wire W after the waterproofing agent is applied with respect to the cap C described below. This axis alignment hold 60 has clamping arms that open and close vertically to clamp the electric wire W from above and below, and when closed, can lightly clamp a position slightly on the base end side of the tip Wa of the electric wire W that extends beyond the tip of the straight guide 11. This axis alignment hold 60 is provided so that the clamping arms are retracted to a position that does not interfere with other operations when opened.

[0036] On the other hand, the cap mounting mechanism E2, which is located on the front left side of where the worker is standing, has a second arm 20. This second arm 20 has a cap holding chuck 21 that receives and supports the cap C inserted from above, and a cylinder (the cylinder body is not shown) that extends and retracts the cylinder rod 22 in the left-right direction.

[0037] The cap holding chuck 21 is configured to rotate a pair of blocks from the horizontal direction downward to open and close. When closed, the cap holding chuck 21 receives and holds the cap C set from above, and when open, the cap holding chuck 21 is provided so as not to impede the movement of the tip Wa of the electric wire W to which the cap C is attached. The cap holding chuck 21 is provided so as to be slidable in the same direction as the extension and contraction direction of the cylinder rod 22 (left and right direction). An engagement portion 22a that engages with the small protrusion Ct at the rear end of the cap C is provided at the tip of the cylinder rod 22.

[0038] The second arm 20 configured in this manner holds the cap C at its tip so as to face the tip Wa of the electric wire W held in a horizontal orientation by the first arm 10. Then, the cap C is moved forward (to the right) relatively toward the tip Wa of the electric wire W held in a horizontal orientation, so that the cap C covers the tip Wa of the electric wire W to which the waterproofing agent 31 has been applied.

[0039] The transport mechanism E3 moves the first arm 10 and the second arm 20 from the working position N to the heater 40 while maintaining their relative positional relationship when a cap C is attached to the end of the electric wire W, and after heating treatment by the heater 40, moves the first arm 10 and the second arm 20 back to the original working position N while maintaining their relative positional relationship.

[0040] In this embodiment, the transport mechanisms E3 are provided separately on the first arm 10 side and the second arm 20 side, but are controlled and driven so as to be linked together.

[0041] That is, the transport mechanism E3 on the first arm 10 side has a linear rail 17 extending from the right side of the work position N to the right side of the heater 40, a slider 16 that slides along this rail 17, and a drive mechanism (not shown) that linearly drives this slider 16. A main body of the lifting mechanism 15 of the first arm 10 is fixed to this slider 16.

[0042] The transport mechanism E3 on the second arm 20 side has a linear rail 27 extending from the left side of the work position N to the left side of the heater 40, a slider 26 that slides along the rail 27, and a drive mechanism (not shown) that linearly drives the slider 26. A main body of a cylinder of the second arm 20 is fixed to the slider 26.

[0043] The rail 17 on the first arm 10 side and the rail 27 on the second arm 20 side are installed parallel to each other, and the slider 16 on the first arm 10 side and the slider 26 on the second arm 20 side are controlled to slide synchronously.

[0044] Therefore, the slider 16 on the first arm 10 side and the slider 26 on the second arm 20 side move in the direction of the arrow A1 in Fig. 1(a). The straight guide 11 and the electric wire holding chuck 12 on the first arm 10 side swing up and down as shown by the arrow A2 in Fig. 1(b) and move up and down as shown by the arrow A3 in Fig. 1(b). The tip of the cylinder rod 22 of the second arm 20 moves largely left and right as shown by the arrow A4 in Figs. 1(a) and (b) or moves slightly left and right as shown by the arrow A5. The cap holding chuck 21 of the second arm 20 moves largely left and right as shown by the arrow A4 in Figs. 1(a) and (b).

[0045] Next, a series of operations will be described. Although the series of operations may be controlled by manually issuing commands by operating a manual switch at certain points, it is also possible to operate only the first command manually and then have the remaining operations controlled automatically based on signals from sensors (not shown) and the like.

[0046] First, the worker stands at position M. Then, as shown in FIG. 2, the electric wire W is set on the first arm 10 (arrow Y1). At this time, while the tip Wa of the electric wire W is positioned by the positioning member 50, the electric wire W is placed on the trough-shaped straight guide 11 and the base end side of the electric wire W is gripped by the electric wire holding chuck 12. In addition, the cap C is set from above on the cap holding chuck 21, which is located at the left end and kept in a closed state (arrow Y2). Note that the setting of the cap C may be performed at a later stage, as described later.

[0047] After the setting of the electric wire W, etc., is completed, a series of operations are automatically performed by, for example, operating a switch. First, as shown in Fig. 3, the positioning member 50 is retracted downward, and the vertical swing base 13 of the first arm 10 is rotated downward as shown by an arrow Y3, so that the tip Wa of the electric wire W held by the electric wire holding chuck 12 is rotated from a position facing horizontally to a position facing vertically downward (arrow Y3a).

[0048] Next, as shown in FIG. 4, the lifting mechanism 15 is lowered (arrow Y4) to lower the tip Wa of the electric wire W held by the electric wire holding chuck 12 of the first arm 10 (arrow Y4a), and the waterproofing treatment portion of the tip Wa of the electric wire W is immersed in the waterproofing agent 31 in the waterproofing agent container 30.

[0049] 5, the lifting mechanism 15 is raised (arrow Y5) to raise the tip Wa of the electric wire W held by the electric wire holding chuck 12 of the first arm 10 (arrow Y5a), and the waterproofing treatment part of the tip Wa of the electric wire W is lifted from the waterproofing agent 31. At this stage, the waterproofing agent 31 has been applied to the waterproofing treatment part of the tip Wa of the electric wire W.

[0050] 6, the vertically swingable base 13 of the first arm 10 is rotated upward as indicated by an arrow Y6, and the tip Wa of the electric wire W held by the electric wire holding chuck 12 is rotated from a position facing vertically downward to a position facing horizontally (arrow Y6a). After the tip Wa of the electric wire W is turned to the horizontal position, the axis alignment hold 60 is closed, and the position of the tip Wa of the electric wire W is aligned with the axis of the cap C.

[0051] 7, the cylinder rod 22 of the second arm 20 is extended and the cap holding chuck 21 is advanced toward the tip Wa of the electric wire W (arrow Y8) and stopped at a predetermined position, thereby covering the tip Wa of the electric wire W to which the waterproofing agent 31 has been applied with the cap C. Note that the cap C may be set in the cap holding chuck 21 of the second arm 20 prior to this operation.

[0052] After the cap C is put on, next, as shown in the side view of Fig. 8(a) and the plan view of Fig. 8(b), the axis alignment hold 60 is opened (arrow Y9) and the cap holding chuck 21 is opened (arrow Y10). At this stage, the cap C put on the tip of the electric wire W is supported so as not to fall off because the engagement part 22a at the tip of the cylinder rod 22 is engaged with the small convex part Ct at the rear end of the cap C.

[0053] 9, the conveying mechanism E3 is operated to synchronously slide the slider 16 on the first arm 10 side and the slider 26 on the second arm 20 side toward the heater 40 (arrow Y11), and the tip Wa of the electric wire W held by the first arm 10 and the second arm 20 is introduced from the working position N to the heater 40 (arrow Y11a). At this time, the tip Wa of the electric wire W is covered with a cap C. Then, by performing a heat treatment with the heater, the waterproofing agent 31 applied to the tip Wa of the electric wire W dries and hardens, and the heat-shrinkable cap C heat-shrinks, so that the waterproofed treated portion of the tip Wa of the electric wire W is protected.

[0054] Next, when the heating process is completed, as shown in FIG. 10, the transport mechanism E3 is operated in reverse to synchronously slide the slider 16 on the first arm 10 side and the slider 26 on the second arm 20 side toward the working position N (arrow Y12), and the tip Wa of the electric wire W held by the first arm 10 and the second arm 20 (protected by the heat-shrunk cap Cx) is returned from the heater 40 to the working position N (arrow Y12a).

[0055] At this stage, the cap C is integrated with the tip Wa of the electric wire W. Therefore, as shown in FIG. 11, the cap holding chuck 21 is first closed (arrow Y13), and in this state, the cylinder rod 22 is moved slightly in the retracting direction to remove the engagement portion 22a at the tip of the cylinder rod 22 from the small convex portion Ct at the rear end of the cap C (arrow Y14). At this time, the cap holding chuck 21 is in a fixed state. Then, the electric wire holding chuck 12 is opened to release the holding of the electric wire W, and the processed electric wire W is taken out from the first arm 10. At this time, although the cap holding chuck 21 is closed, since the cap C has already contracted, there is no binding force on the cap C, and the tip Wa of the electric wire W protected by the contracted cap C can be easily taken out.

[0056] Next, after removing the processed electric wire W, the tip of the cylinder rod 22 of the second arm 20 and the cap holding chuck 21 are moved to the initial position on the left side (arrow Y16) as shown in Fig. 12. This completes one operation on the tip Wa of the electric wire W, and returns to the state shown in Fig. 1 for starting the next operation.

[0057] As described above, the water-stopping treatment device for an electric wire of this embodiment can automatically perform a series of water-stopping treatment operations, including a step of applying the water-stopping agent 31 to the waterproof treatment target portion of the end Wa of the electric wire W, a step of covering the end Wa of the electric wire W to which the water-stopping agent 31 has been applied with the heat-shrinkable cap C, and a step of introducing the end Wa of the electric wire W covered with the cap C into the heater 40 for heat treatment, thereby drying and hardening the applied water-stopping agent 31 and shrinking the heat-shrinkable cap C. Therefore, it is possible to reduce the manual workload and to produce a waterproof-stopping treated product of stable quality.

[0058] Furthermore, when the waterproof treated portion of the tip Wa of the electric wire W is immersed in the waterproofing agent 31, the first arm 10 only needs to be moved in a vertical plane, so the operating area in the horizontal plane can be reduced. The waterproofing agent container 30 can be placed directly below the first arm 10. This reduces the area that the device occupies in the horizontal plane, making it possible to make the entire device more compact.

[0059] Furthermore, by advancing the cap C held at the tip of the second arm 20 in a horizontal plane relative to the first arm 10, the tip Wa of the electric wire W to which the waterproofing agent 31 has been applied can be covered with the cap C. Therefore, it is sufficient to arrange the first arm 10 and the second arm 20 in a mutually opposing relationship in a horizontal plane, which not only makes the device more compact, but also makes it possible for an operator to easily set the electric wire W and the cap C by positioning the operator to the side of the position where the first arm 10 and the second arm 20 are lined up (for example, in front of the first arm 10 and the second arm 20 when they are lined up on the left and right).

[0060] In addition, since the tip of the electric wire is moved to the heater 40 while maintaining the relative positional relationship between the first arm 10 and the second arm 20, the heater 40 can be disposed immediately to the side of the holding position of the tip of the electric wire W covered with the cap C (for example, when the first arm 10 and the second arm 20 are arranged side by side and the worker is positioned in front of them, the heater 40 can be disposed on the other side of the position where the first arm 10 and the second arm 20 are arranged). This makes it possible to ensure good operability and also narrow the area that needs to be secured for the movement of the arms 10, 20 and the electric wire W, which contributes to making the device more compact.

[0061] Furthermore, since the position of the tip end of the electric wire W when the electric wire W is held by the first arm 10 can be determined by the positioning member 50, the positional relationship between the tip end Wa of the electric wire W and the cap C when the cap C held by the second arm 20 is placed on the tip end Wa of the electric wire W can be constantly controlled. In other words, since the operation of placing the cap C can be stopped before the tip end Wa of the electric wire W hits the innermost end of the cap C, the tip end Wa of the electric wire W will not hit the innermost end of the cap C and the electric wire W will not bend.

[0062] The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, etc. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

[0063] Here, the features of the waterproofing treatment device for an electric wire according to the embodiment of the present invention described above will be briefly summarized and listed in the following [1] to [5]. [1] A device for waterproofing the tip of an electric wire (W), a waterproofing agent application mechanism (E1) for applying a waterproofing agent (31) to the waterproofing treated portion of the tip (Wa) of the electric wire (W) by immersing the waterproofing treated portion in the waterproofing agent (31); a capping mechanism (E2) for covering the tip (Wa) of the electric wire (W) to which the waterproofing agent (31) has been applied with a heat-shrinkable cap (C); a heater (40) for heat-treating the tip (Wa) of the electric wire (W) covered with the heat-shrinkable cap (C); a transport mechanism (E3) for moving the tip (Wa) of the electric wire (W) from the working position (N) where the waterproofing agent (31) is applied and the heat-shrinkable cap (C) is placed on the tip (Wa) of the electric wire (W) to the heater (40), and for transporting the tip (Wa) of the electric wire (W) to the original working position after the heat treatment by the heater (40); Water-stopping treatment device for electric wires.

[0064] [2] The waterproofing agent application mechanism (E1) is a waterproofing agent container (30) that is open at the top and contains a waterproofing agent (31) in a low-viscosity liquid state therein; a first arm (10) positioned above the waterproofing agent container (30) and holding a tip (Wa) of the electric wire (W), moving the tip (Wa) of the electric wire (W) from a horizontal position to a downward position, and lowering the tip (Wa) of the electric wire (W) in the downward position to immerse the waterproofing treatment part in the waterproofing agent (31), and after immersion, raising the tip (Wa) of the electric wire (W) and moving it from the downward position to a horizontal position; It has The waterproofing treatment device for an electric wire according to [1] above.

[0065] [3] The cap attachment mechanism (E2) a second arm (20) that holds the cap (C) at its tip so as to face the tip (Wa) of the electric wire (W) held in a horizontal orientation by the first arm (10) and advances the cap (C) relatively toward the tip (Wa) of the electric wire (W) to which the waterproofing agent (31) has been applied, thereby covering the tip (Wa) of the electric wire (W) with the cap (C); The waterproofing treatment device for an electric wire described in [2] above.

[0066] [4] The transport mechanism (E3) With the cap (C) attached to the tip (Wa) of the electric wire (W), the first arm (10) and the second arm (20) are moved toward the heater (40) while maintaining their relative positional relationship, and after heat treatment by the heater (40), the first arm (10) and the second arm (20) are moved toward the original work position (N) while maintaining their relative positional relationship. The waterproofing treatment device for an electric wire described in [3] above.

[0067] [5] A positioning member (50) is provided which positions a tip (Wa) of the electric wire (W) with respect to the first arm (10) when the electric wire (W) is set on the first arm (10), The positioning member (50) is retractable in a direction perpendicular to the extending direction of the electric wire (W). The waterproofing treatment device for an electric wire according to any one of the above [2] to [4]. [Explanation of symbols]

[0068] 10 First Arm 11 Straight Guide 12 Wire holding chuck 13 Up and down swing base 14 Swing mechanism 15 Lifting mechanism 16 Slider 17 Rail 20 Second Arm 21 Cap holding chuck 22 Cylinder rod 22a Engagement part 26 Slider 27 Rail 30 Water stopper container 31 Waterproofing agent 40 Heater 50 Positioning member 60 Hold C Cap E1 Waterproofing agent application mechanism E2 Cap installation mechanism E3 Transport mechanism N Working position W electric wire Wa Tip

Claims

1. A device for waterproofing the tip of an electric wire, a waterproofing agent application mechanism that applies a waterproofing agent to the waterproofing treated portion of the tip of the electric wire by immersing the waterproofing agent in the waterproofing agent; a capping mechanism for covering the tip of the electric wire coated with the waterproofing agent with a heat-shrinkable cap; a heater for heat-treating the tip of the electric wire covered with the heat-shrinkable cap; a conveying mechanism for moving the tip of the electric wire from a working position where the waterproofing agent is applied and the heat-shrinkable cap is placed on the tip of the electric wire to the heater, and for moving the tip of the electric wire to the original working position after the heat treatment by the heater. Water-stopping treatment device for electric wires.

2. The waterproofing agent application mechanism includes: a waterproofing agent container having an open top and containing a waterproofing agent in a low-viscosity liquid state; a first arm that is positioned above the water-stopping agent container and holds a tip of the electric wire, moves the tip of the electric wire from a horizontal position to a downward position, and in the downward position, lowers the tip of the electric wire to immerse the waterproofing treatment part in the water-stopping agent, and after immersion, raises the tip of the electric wire and moves it from the downward position to a horizontal position; It has The waterproofing treatment device for an electric wire according to claim 1.

3. The cap mounting mechanism includes: a second arm that holds the cap at its tip so as to face the tip of the electric wire held in a horizontal orientation by the first arm, and moves the cap relatively forward toward the tip of the electric wire to cover the tip of the electric wire to which the waterproofing agent has been applied, The waterproofing treatment device for an electric wire according to claim 2.

4. The transport mechanism includes: With the cap attached to the tip of the electric wire, the first arm and the second arm are moved toward the heater while maintaining their relative positional relationship, and after a heat treatment by the heater, the first arm and the second arm are moved toward the original working position while maintaining their relative positional relationship. The waterproofing treatment device for an electric wire according to claim 3.

5. a positioning member for positioning a tip of the electric wire with respect to the first arm when the electric wire is set on the first arm, The positioning member is retractable in a direction perpendicular to the extending direction of the electric wire. The waterproofing treatment device for an electric wire according to any one of claims 2 to 4.

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