JP4012783B2 - Adhesive coating apparatus and adhesive coating method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adhesive application device and an adhesive application method for applying a low-viscosity adhesive to an intermediate connection portion and a terminal connection portion of a joint electric wire to achieve waterproofing.
[0002]
[Prior art]
Conventionally, as a structure and a method for joint-connecting a plurality of electric wires, for example, those shown in FIGS. 6 to 9 have been proposed.
[0003]
FIG. 6 shows a set state in which the terminal portions of the plurality of electric wires 51 are joint-connected by thermocompression bonding (welding), and the electric wire connecting portion 52 and the vicinity thereof are covered with a heat shrinkable tube 49 made of synthetic resin. A hot melt adhesive 50 is loaded into the heat shrinkable tube 49 to block one end of the tube 49.
[0004]
With the tip of the wire connecting portion 52 in contact with the bottom of the hot melt adhesive 50, the heat shrinkable tube 49 is contracted by the heating device 53 as shown in FIG. In this way, the electric wire connection portion 52 is insulated and waterproofed. In FIG. 7, reference numeral 55 denotes a heater, and 54 denotes a feed roller.
[0005]
FIG. 8 shows a state in which a wire connecting portion 58 is formed in the longitudinal intermediate portion of the plurality of wires 57 and a cylindrical heat shrinkable tube 59 is set on the outer periphery of the wire connecting portion 58. The intermediate connection portion 58 is joint-connected to each other by thermocompression bonding (welding) in a state where the terminal portions of the left and right electric wires 57 are butted. The same applies to the terminal connection portion 52 of FIG. 6, but the connection portion 58 is constituted by a conductive wire (core wire), and the portion other than the connection portion is constituted by an insulating resin coating being attached to the outside of the core wire. A hot melt adhesive (not shown) is also loaded inside the heat shrinkable tube 59 of FIG.
[0006]
FIG. 9 shows a waterproofing method previously proposed by the present applicant in Japanese Patent Laid-Open No. 8-888917. The low-viscosity adhesive (sealing agent) in the container 62 is used to connect the intermediate connection portion 61 of the joint electric wire 60. 63, and the adhesive 63 is infiltrated between the core wires (element wires) 64 of the joint electric wire 60 by capillary action. By bending the base side of the wire connecting portion 61, the adhesive 63 can easily enter between the core wires 64. As the adhesive 63, for example, an instantaneous adhesive such as cyan Aron Alpha (registered trademark) is used. The infiltration of the wire connecting portion 61 into the adhesive 63 in the container is performed manually by the operator.
[0007]
After infiltrating the adhesive into the wire connecting portion 61 and the core wire 64 in the vicinity thereof by the method of FIG. 9 and drying, for example, the heat shrinkable tube 59 of FIG. 8 is set in the wire connecting portion 61 and heated in a heating tank. Shrinkage and close contact with the outer periphery of the wire connecting portion 61 enhances the insulation, waterproofness, protection against interference and the like. Since the adhesive 63 is filled between the core wires 64, it is possible to prevent water or the like from being transmitted between the core wires 64 due to capillary action in the longitudinal direction of the wire and adversely affecting the wire connecting portion 61 or other wire connecting portions. The
[0008]
[Problems to be solved by the invention]
However, in the conventional waterproofing method of the wire connection portion using the low-viscosity adhesive, that is, the adhesive application method, the operator soaks the joint wire 60 one by one in the adhesive solvent 63 one by one. There is a concern that many man-hours are required, the cost of the product tends to be high, the way the adhesive 63 is attached tends to vary, and the waterproof quality tends to become unstable. In addition, there is a concern that the product may be dirty or the operator's hand may be damaged due to the dripping of the adhesive 63.
[0009]
In view of the above-mentioned points, the present invention can apply a low-viscosity adhesive (sealant) automatically or semi-automatically to a wire connection portion quickly, efficiently and reliably without depending on a complete manual operation. Adhesive application that can improve the waterproof quality of the product (joint wire) productivity and cost, and also eliminate the dripping of the adhesive and eliminate the adverse effects on the product and workers An object is to provide an apparatus and an adhesive application method.
[0010]
[Means for Solving the Problems]
  In order to achieve the above object, an adhesive application device according to claim 1 of the present invention includes an arm provided with a chuck portion for holding a joint electric wire, means for rotating the arm downward, and rotation of the arm. An adhesive-filled container that is arranged in a moving direction and immerses the connection portion of the joint wire;And a driving means for rotatably supporting the arm on the base portion and rotating the base portion in a direction crossing the arm rotating direction, and the base portion is movable up and down integrally with the arm. The raising / lowering of the base portion and the rotation of the arm are performed simultaneously.It is characterized by that.
  With the above configuration, the connection portion of the joint wire is rotated downward by the rotation of the arm, and is immersed in the adhesive. When the arm rotates in the restoring direction, the connecting portion is pulled up from the adhesive. An adhesive is applied to the connection portion. The immersion time of the connection part is fixed.
[0011]
  Also,The arm rotates forward by the rotation of the base portion and is positioned horizontally, and in this state, the joint electric wire is set on the chuck portion with good workability. This rotation of the base portion also causes the connection portion of the joint wire to contact the adhesive wiping member described later.
  Also, the sum of the lowering stroke of the joint wire connecting part due to the pivoting of the arm and the lowering stroke of the connecting part due to the lowering of the base part greatly lowers the connecting part, ensuring that the adhesive-containing container located on the lower side Soaked. Even when the joint electric wire is short, the connecting portion is greatly lowered by the lowering of the base portion and is surely immersed in the adhesive-containing container.
[0012]
  Claim2The adhesive application device according to claim1In the adhesive application device described above, a pair of left and right arms are provided, and the pair of arms rotate inward with respect to each other.
  With the above-described configuration, the pair of chuck portions are integrally moved with the pair of arms while being rotated inward, the joint electric wire is bent in a substantially U shape, and the intermediate connection portion of the joint electric wire is on the base side (insulation coating side) It is immersed in the adhesive while being bent at the top. By this bending, the adhesive penetrates between the core wires of the intermediate connection portion and between the core wires and the insulating coating by a capillary phenomenon.
[0013]
  Claim3The adhesive application device according to claim1 or 2In the above-described adhesive application device, a push rod for initially bending the joint electric wire in the rotational direction of the arm is provided so as to be movable up and down.
  With the above configuration, the downward bending operation of the joint wire is performed smoothly and accurately.
[0014]
  Claim4The adhesive application device according to claim1-3In the adhesive application device according to any one of the above, an adhesive wiping member is disposed in a rotating direction of the base portion.
  With the above configuration, after the adhesive is applied, the connection portion of the joint wire comes into contact with the adhesive wiping member by the rotation of the base portion, and the excess adhesive is wiped off.
[0015]
  Claim5The adhesive application device according to claim1-4The adhesive application device according to any one of the above, wherein a product recovery member having an inclined portion with respect to the connection portion of the joint wire held by the chuck portion is provided so as to be movable up and down.
  With the above configuration, the joint electric wire that has been applied with the adhesive is lifted by the inclined portion as the product recovery member rises, floats from the chuck portion, and falls along the inclined portion to the receiving portion.
[0017]
  Claim6The adhesive application apparatus according to claim 15In the adhesive application device according to any one of the above, an alignment portion for the connection portion when the joint wire is gripped by the chuck portion is provided.
  By the said structure, the position of the connection part of the joint electric wire with respect to a chuck | zipper part is prescribed | regulated correctly, and a connection part is immersed correctly in a container containing an adhesive agent without position shift. For example, the alignment portion is formed in a substantially U shape, the intermediate connection portion is aligned between the U shapes, the end of the terminal connection portion is aligned with one end of the U shape, etc. And the terminal connection unit.
[0018]
  Claim7In the adhesive coating method according to the present invention, a joint electric wire having an intermediate connecting portion is gripped by a pair of chuck portions, the pair of chuck portions are rotated inward from each other, and the intermediate portion of the joint electric wire is bent downward. The connecting portion is dipped in a container containing an adhesive.
  With the above configuration, the pair of chuck portions approach while rotating in opposite directions at the same time, and accordingly, the joint electric wire is bent in a substantially U shape, and the intermediate connection portion of the joint electric wire is on the base side (insulation coating side). It is immersed in the adhesive while being bent. By this bending, the adhesive penetrates between the core wires of the intermediate connection portion and between the core wires and the insulating coating by a capillary phenomenon.
[0019]
  Claim8The method of applying an adhesive according to claim7The adhesive application method described above is characterized in that the joint wire is pushed downward to be bent initially before the chuck portions are rotated.
  With the above configuration, the downward bending operation of the joint wire is performed smoothly and accurately.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an embodiment of an adhesive application device according to the present invention.
[0022]
The adhesive applicator 1 includes a pair of left and right chuck portions 3 that hold the joint electric wire 2, a means 4 for raising the pair of chuck portions 3 vertically from a horizontal position, and a pair of chuck portions 3 that pivot inward from each other. Means 5 for raising and lowering, means 6 for raising and lowering the pair of chuck portions 3, means 8 for initially bending the vicinity of the connection portion 7 of the joint electric wire 2, and low viscosity such as Aron Alpha (trade name) The container 10 containing the instant adhesive (sealing agent) 9 and the means 48 for discharging (collecting) the joint electric wire 2 coated with the adhesive 9 from the pair of chuck portions 3 are provided.
[0023]
Each chuck portion 3 has a pair of upper and lower chuck pieces 11 in the horizontal electric wire set state of FIG. 1, and each chuck piece 11 is driven to open and close by an air pressure type chuck cylinder 12 (driving means). Each chuck cylinder 12 is fixed to each arm 13, and the pair of arms 13 is pivotally supported by a substantially U-shaped substrate portion (base portion) 14. The arm 13 is elastically biased outwardly by, for example, a torsion coil spring (not shown), contacts the stopper 15 (FIG. 4), and is positioned forward (in a direction perpendicular to the joint wire 2) as shown in FIG. It is restricted so that it can no longer rotate outward. The shaft portion 16 is fixed to the arm 13, and the bearing portion 41 (FIG. 3) is fixed to the substrate portion 14. The torsion coil spring is provided in the bearing portion 41. An elastic member (biasing member) such as a leaf spring or a rubber member may be used instead of the torsion coil spring.
[0024]
A short driven arm 17 is integrally provided with the shaft portion 16 so as to protrude outward, and a roller 18 is rotatably provided at the tip of the driven arm 17. The driven arm 17 is integrally fixed to the arm 13 via the shaft portion 16.
[0025]
The substrate portion 14 includes parallel projecting portions 19 on both sides that pivotally support the arms 13, and a base portion 20 that is orthogonal to the projecting portions 19. The substrate part (base part) 14 does not necessarily have a plate shape. The base portion 20 is connected to a horizontal base 21 via a hinge 22 so as to be rotatable in the vertical direction. The base portion 20 is rotatably connected to a rod 23 a of a horizontal pneumatic cylinder (drive means) 23, and a main body portion (substitute with reference numeral 23) of the cylinder 23 is fixed to the base 21. The base 21 is fixed to a rod 26 a of a vertical pneumatic cylinder (driving means) 26, and moves up and down integrally with the substrate portion 14, the arm 13, and the chuck portion 3 by the expansion and contraction of the rod 26 a. The rod 26 a is inserted through the hole 25 of the table 24, and the cylinder body is disposed below the table 24. The arm 13, the substrate part 14, and the horizontal cylinder (driving means) 23 constitute a means 4 for raising the pair of chuck parts 3 vertically from a horizontal position. The vertical cylinder 26 and the base 21 constitute a means 6 for raising and lowering the pair of chuck portions.
[0026]
  A pair of cam plates 27 are erected on the table 24 on both the left and right sides of the substrate portion 21. Each cam plate 27 includes an inner vertical cam surface 27a, an upper curved cam surface 27b following the vertical cam surface 27a, and an upper upper horizontal cam surface 27c following the curved cam surface 27b. Have. A pair of arms by the compression operation of the rod 23a of the horizontal cylinder (drive means) 2313Is raised vertically from the hinge 22 integrally with the substrate part 14, and in this state the arm13The roller 18 of the driven arm 17 is positioned slightly above the horizontal cam surface 27c at the upper end. The cam plate 27, the driven arm 17 and the arm 13 constitute a means 5 for turning the pair of chuck portions inwardly with respect to each other.
[0027]
A container 10 in which a low-viscosity liquid adhesive 9 is placed on a table 24 is disposed substantially below the substrate portion 14. The surface position of the adhesive 9 is defined between the upper line and the lower line of the container.
[0028]
A frame-like support wall 28 is provided on the base 21, and a rod 23 a of a horizontal cylinder 23 is inserted into the inner space of the support wall 28. A vertical pneumatic cylinder (driving means) is placed on the support wall 28. ) 29 is provided, a cylinder (driving means) 30 with a short stroke in the horizontal direction (front-rear direction) is fixed to the rod 29 a of the cylinder 29, a substrate 31 perpendicular to the rod 30 a of the cylinder 30 is fixed, A pair of adjacent push rods 32 project horizontally (forward). The cylinders 29 and 30 and the push rod 32 constitute a means 8 that presses the vicinity of the connection portion of the joint wire downward and bends it initially.
[0029]
On the table 24, a wiping cloth (adhesive wiping member) 33 is disposed in front of the container 10. The wiping cloth 33 is for wiping off the excess adhesive adhering to the connection portion 7 of the joint electric wire 2, and is detachably attached to the inclined portion 35 of the product recovery member 34 by a spring clamp or the like (not shown). This makes it easy to replace when dirty.
[0030]
The product recovery member 34 is composed of an inclined portion 35 formed by bending a metal plate and a product receiving portion 36 following the inclined portion 35, and a rod 37 a of a vertical pneumatic cylinder (driving means) 37. It is fixed to. The cylinder 37 is fixed below the table 24. The wiping cloth 33 and the inclined portion 35 are located immediately below the connection portion 7 of the joint electric wire 2 gripped by the pair of left and right chuck portions 3. The product collection member 34 and the cylinder 37 constitute a means 48 for paying out the joint wire coated with an adhesive from the chuck portion.
[0031]
At the upper end of the inclined portion 35 of the product recovery member 34, an alignment member (alignment portion) 38 for the connection portion 7 of the joint wire 2 is provided so as to protrude. As shown in FIG. 2, the alignment member 38 is formed in a frame shape or a substantially U-shape, and has a pair of right and left protruding indicator portions 39.
[0032]
When positioning the intermediate connection portion 7 of the joint wire 2 as shown in FIG. 2A, the intermediate connection portion 7 is positioned between the pair of left and right indicating portions 39, and the pair of chuck portions 3 (FIG. 1). The electric wire part (insulation coating part) 40 of the joint electric wire 2 is gripped. Further, when the terminal connection portion 7 ′ of the joint electric wire 2 ′ is aligned as shown in FIG. 2B, the tip 7a of the terminal connection portion 7 ′ is aligned with any one of the instruction portions 39, The electric wire is gripped by the chuck portion 3 (FIG. 1). The same adhesive application device 1 is used for the intermediate connection portion 7 and the terminal connection portion 7 ′.
[0033]
Below, the case where the adhesive agent 9 is apply | coated to the intermediate connection part 7 of the joint electric wire 2 is demonstrated using FIG. 1 and FIGS. Although only one vertical cylinder 26 is shown in FIG. 1, FIGS. 3 to 5 show examples using upper and lower double cylinders 26 '. 3 to 5, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted. A portion indicated by a solid line in FIG. 3 (side view) corresponds to FIG.
[0034]
First, as shown by the solid lines in FIGS. 1 and 3, the intermediate connection portion 7 of the joint wire 2 is positioned with the alignment member 38 in a state where the pair of left and right chuck portions 3 are horizontally positioned, that is, in a state where they are tilted to the front (operator side). The electric wire portions 40 (FIG. 2) on both sides are gripped by the chuck portions 3 while being aligned in (FIG. 2). The closing operation of the chuck portion 3 is performed by an operator stepping on a foot switch. The following operations are automatically performed by the sequencer or control unit.
[0035]
When the chucking of the joint electric wire 2 is completed, the horizontal cylinder 23 is compressed as shown in the chain line of FIG. 3 and FIG. 4 (rear view), and the pair of chuck portions 3 are integrated with the arm 13 and the substrate portion 14 with an arrow A (FIG. It can be rotated vertically as shown in 3). As shown in FIG. 4, the follower arm 17 integrated with the arm 13 is located on both the left and right sides of the substrate portion 14 so as to protrude outward and substantially horizontally. The roller 18 at the tip of the driven arm 17 is positioned above the cam plate 27. 3 and 4, the vertical double cylinder 26 'is in the most extended state, and the pair of chuck portions 3 are located at the highest position.
[0036]
The joint electric wire 2 gripped by the chuck portion 3 is positioned horizontally, and a push bar 32 (FIG. 4) is positioned on the upper rear side of the joint electric wire 2. The pair of push rods 32 is projected forward by the extension operation of the rear cylinder 30 in FIG. 1, and the wire portions 40 on both sides of the connection portion 7 of the joint wire 2 are slightly pushed down by the compression operation of the vertical cylinder 29. Bend. Thereby, the joint electric wire 2 becomes easy to bend downward.
[0037]
Next, as shown in FIG. 5, the vertical cylinder 26 ′ is compressed, and the substrate portion 14, the pair of arms 13, and the chuck portions 3 are lowered together with the base 21 fixed to the cylinder rod 26 a ′. The roller 18 slides along the curved cam surface 27 b of the cam plate 27, the driven arm 17 rotates inwardly, and the arm 13 is integrated with the driven arm 17 to bias the elastic member (not shown). Rotate inward against Along with this, the joint electric wire 2 gripped by the pair of chuck portions 3 bends as if it is folded downward in a substantially U shape. When the roller 18 is positioned along the vertical cam surface 27a, the arm 13 becomes completely horizontal. The connection part 7 of the joint electric wire 2 is located at the bottom dead center, and is immersed in the adhesive 9 (FIG. 3) in the container in that state. The base portion of the connection portion 7 is bent to be in the state of FIG. 9 of the conventional example, and the adhesive 9 surely penetrates between the core wire of the joint wire 2 and the insulating coating.
[0038]
Next, the joint wire 2 is returned to the near side (operator side) by the reverse operation to the above. That is, the roller 18 is raised along the cam plate 27 by the extension operation of the vertical cylinder 26 'from the state shown in FIG. 5, and the arm 13 is rotated outward by the urging force of the elastic member to stand vertically as shown in FIG. Stopped by the stopper 15 in the raised state. Next, as shown in the solid line in FIG. 3, the arm 13 is rotated integrally with the base plate part 14 until it becomes horizontal horizontally by the extension operation of the horizontal cylinder 23, and the joint wire 2 held at the center of the pair of chuck parts 3 is connected at the center. The portion 7 comes into light contact with the wiping cloth 33 and the excess adhesive of the connecting portion 7 is wiped off. Thereby, dripping of an adhesive agent is prevented. The joint electric wire 2 is located slightly above the inclined portion 35 of the product recovery member 34.
[0039]
Next, the chuck portion 3 is opened, and the inclined portion 35 of the product recovery member 34 slightly lifts the joint electric wire 2 within the chuck portion 3 by the extension operation of the vertical cylinder 37. The joint electric wire 2 falls along the inclined portion 35 to the product receiving portion 36. The operator collects the finished product (joint wire processed product or product) in the product receiving part and sends it to the next process. It is also possible to store a plurality of processed products in the receiving portion 36.
[0040]
The above is the case of the joint electric wire 2 having the intermediate connection portion 7. However, in the case of the joint electric wire 2 ′ having the terminal connection portion 7 ′ (FIG. 2B), the joint electric wire 2 ′ is connected to one of the chuck portions 3. 2b, the terminal connection portion 7 'is positioned by the method shown in FIG. 2B, and thereafter, the adhesive 9 is applied to the terminal connection portion 7' by the same operation as in the case of the intermediate connection portion 7. .
[0041]
That is, as shown by the solid lines in FIG. 1 and FIG. 3, the joint electric wire 2 ′ is gripped by one chuck portion 3 and positioned almost horizontally (the terminal connection portion 7 ′ is slightly bent downward by its own weight), and the solid line in FIG. 4 and FIG. 4, the chuck portion 3 is rotated rearward and upward by the compression operation of the horizontal cylinder 23 to lift the joint wire 2 ′ to be positioned horizontally, and the upper cylinders 29 and 30 are operated to move the joint wire 2 ′. The vicinity of the terminal connecting portion 7 ′ is pushed downward by the push rod 32 to be bent slightly downward (in the case of the terminal connecting portion 7 ′, the initial bending by the push rod is not necessary), and the lower side as shown in FIG. The terminal connection is made while the arm 13 is rotated inward integrally with the chuck portion 3 along the cam plate 27 by the compression operation of the vertical cylinder 26 ′ so that the terminal connection portion 7 ′ is positioned downward together with the wire portion 40. Part 7 'in the container Immersed in the adhesive 9.
[0042]
Next, as shown in FIGS. 5 to 4, the joint electric wire 2 ′ is lifted by the rotation of the arm 13 by the vertical cylinder 26 ′ by the reverse operation to the above, and the horizontal cylinder 23 is operated so as to be almost horizontal. Then, the terminal connection portion 7 ′ is lightly brought into contact with the wiping cloth 33 to remove excess adhesive, and the finished joint wire processed product is dropped onto the product receiving portion 36 by the ascending operation of the product recovery member 34.
[0043]
In the above operation, it is possible not to operate the other chuck portion 3 and the other arm 13 that do not hold the joint electric wire 2 ′. Moreover, it is possible to extend the product recovery member 34 of FIG. 1 in the longitudinal direction of the joint electric wire 2 ′ having the terminal connection portion 7 ′, thereby improving the recoverability of the joint electric wire 2 ′.
[0044]
In each of the above embodiments, the joint wires 2 and 2 ′ can be set in the chuck portion 3 with the arm 13 vertically raised as shown in FIG. 3 and the chain line in FIG. 4. In this case, the adhesive 9 is applied to the connecting portions 7 and 7 ′ by the pivoting and lowering operations of the arm 13 in FIG. 5, and the joint wires 2 and 2 ′ are moved slightly backward along with the arms 13 in the raised position in FIG. You may make it rotate and wipe off excess adhesive agent with the wiping cloth 33. FIG. In addition, the arm 13 is rotated by a motor, an air actuator or the like without moving up and down by the vertical cylinders 26 and 26 '(the cylinder is abolished), whereby the joint wire 2 is bent into a U shape and connected. It is also possible to immerse the part 7 in the adhesive in the container. The cylinders 23, 26, 26 ', 29, 30, and 37 can be replaced with other driving means such as a motor or a ball screw shaft.
[0045]
Further, although it takes a little time and effort, the product collection member 34 can be omitted and the operator can directly take out the product from the chuck portion 3. Further, the wiping cloth 33 can be omitted for a slightly high-viscosity adhesive without fear of dripping. Further, it is possible to use wiping paper or the like instead of the wiping cloth 33. It is also possible to dispose the wiping cloth 33 at a position different from the product recovery member 34 (for example, the product recovery member 36 is divided and positioned on both the left and right sides of the wiping cloth 33). Further, even if the push rod 32 for performing the initial bending is omitted, the joint wire 2 can be bent only by the rotation of the arm 13. If the push bar 32 is used, the joint wire 2 is bent more accurately. Further, instead of the alignment member 38, an alignment portion such as a marking may be formed.
[0046]
【The invention's effect】
As described above, according to the first aspect of the present invention, the joint portion of the joint wire is rotated downward by the rotation of the arm and is automatically immersed in the adhesive. Efficient and accurate with no application variation. Thereby, productivity of a joint electric wire processed product increases, cost is reduced, and waterproof quality improves.
[0047]
  Also,Since the arm rotates forward and integrally with the chuck portion by the rotation of the base portion, the joint wire can be set on the chuck portion with good workability, and the wire setting operation is facilitated and speeded up. Moreover, since the joint electric wire is positioned horizontally integrally with the chuck portion, it is possible to easily wipe off the excess adhesive at the connecting portion, thereby preventing the adhesive from dripping.
  In addition, since the machining stroke of the chuck portion can be increased, the adhesive can be applied to the connection portion in a reliable manner even for short joint wires. Thereby, it becomes possible to easily cope with a difference in length of the joint electric wire.
[0048]
  Claim2According to the described invention, the pair of chuck portions are integrally rotated with the pair of arms while approaching, the joint wire is bent in a substantially U shape, and the intermediate connection portion of the joint wire is connected to the base side (insulation Since it is immersed in the adhesive while being bent on the coating side), the adhesive penetrates between the core wires of the intermediate connection portion and between the core wire and the insulating coating by a capillary phenomenon, and the waterproofness is reliably improved. Since the operation for enhancing the waterproofness is automatically performed, the productivity and quality of the joint electric wire processed product can be improved at the same time.
[0049]
  Claim3According to the described invention, the downward bending operation of the joint electric wire is smoothly and accurately performed by the initial bending by the push rod, so that the adhesive can be more accurately applied to the connection portion.
[0050]
  Claim4According to the described invention, it is possible to automatically remove the excess adhesive at the connection portion, so that the operator does not have to manually wipe it off, and the productivity of the joint electric wire processed product is improved. It is possible to prevent the sagging from falling down and to prevent adverse effects such as dirt on the processed product and adhesion of the adhesive to the worker.
[0051]
  Claim5According to the described invention, the joint electric wire processed product for which the application of the adhesive has been completed can be automatically collected regardless of the manual operation, so that the productivity of the joint electric wire processed product is improved and the operator can bond the connection portion. Touching the agent will not cause the adhesive to peel off or hurt your hands.
[0053]
  Claim6According to the described invention, the position of the connection portion of the joint electric wire is accurately defined, and the connection portion is accurately immersed in the adhesive-containing container without displacement, so that there is no variation in the application position and the waterproof quality is improved. To do. In addition, for example, the alignment portion is formed in a substantially U shape, the intermediate connection portion is aligned between the U shapes, the end of the terminal connection portion is aligned with one end of the U shape, and the like. The connection part and the terminal connection part can be used in common, and the work efficiency can be improved without changing the setup.
[0054]
  Claim7According to the described invention, the pair of chuck portions turn inward and approach each other, the joint electric wire is bent into a substantially U shape, and the intermediate connection portion of the joint electric wire is bent at the base side (insulation coating side). However, since it is immersed in the adhesive, the adhesive permeates by capillarity between the core wires of the intermediate connection portion and between the core wires and the insulating coating, and the waterproofness is reliably improved. Since the operation for enhancing the waterproofness is automatically performed, the productivity and quality of the joint electric wire processed product can be improved at the same time.
[0055]
  Claim8According to the described invention, the downward bending operation is performed smoothly and accurately by the initial bending of the joint electric wire, so that the adhesive can be more accurately applied to the connecting portion.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of an adhesive application device according to the present invention.
2A and 2B show a method for positioning a joint wire, wherein FIG. 2A is a plan view in the case of an intermediate connection portion, and FIG. 2B is a plan view in the case of a terminal connection portion.
FIG. 3 is a side view showing a state where a joint wire is set and raised in an adhesive application device.
FIG. 4 is a rear view showing a state where the joint wire is also raised.
FIG. 5 is a rear view showing a state in which the intermediate connection portion of the joint wire is immersed in an adhesive in the container.
FIG. 6 is a cross-sectional view showing a sealing structure of a terminal connection portion of a conventional joint wire.
FIG. 7 is a cross-sectional view showing an embodiment of a tube heating device for sealing the terminal connection portion.
FIG. 8 is a cross-sectional view showing a sealing structure of an intermediate connection portion of a conventional joint wire.
FIG. 9 is an explanatory view showing a method of allowing a low-viscosity adhesive to penetrate into the intermediate connection portion of a conventional joint wire.
[Explanation of symbols]
1 Adhesive applicator
2,2 'joint wire
3 Chuck part
4 Driving means for rotating the base portion in a direction intersecting the arm rotation direction
5 Means to turn the arm downward
7 Intermediate connection
7 'terminal connection
9 Adhesive
10 containers
13 arms
14 Substrate part (base part)
32 push rod
33 Wiping cloth (wiping member)
34 Product recovery parts
35 Inclined part
38 Positioning member (positioning part)

Claims (8)

An arm provided with a chuck portion for gripping the joint electric wire, a means for rotating the arm downward, a container containing an adhesive disposed in the rotational direction of the arm and soaking the connection portion of the joint electric wire , and the arm And a driving means for rotating the base portion in a direction intersecting the arm rotation direction, the base portion being movable up and down integrally with the arm. The adhesive coating apparatus is characterized in that the lifting and lowering of the part and the rotation of the arm are performed simultaneously . The arm is provided pair, the adhesive coating apparatus according to claim 1, wherein the said pair of arms is pivoted inwardly to each other. The adhesive application device according to claim 1 or 2 , wherein a push rod for initial bending of the joint wire in the direction of rotation of the arm is provided so as to be movable up and down. The adhesive application device according to any one of claims 1 to 3 , wherein an adhesive wiping member is disposed in a rotating direction of the base portion. The adhesive application according to any one of claims 1 to 4 , wherein a product recovery member having an inclined portion with respect to the connection portion of the joint electric wire held by the chuck portion is provided so as to be movable up and down. apparatus. The adhesive application device according to any one of claims 1 to 5 , further comprising an alignment portion for the connection portion when the chuck portion grips the joint electric wire.   A joint electric wire having an intermediate connecting portion is gripped by a pair of chuck portions, and the pair of chuck portions are rotated inward from each other, and the intermediate electric connecting portion is bent downward while the joint electric wire is bent downward. A method of applying an adhesive, characterized by being immersed in the inside. The adhesive application method according to claim 7 , wherein the joint wire is pushed downward to be bent initially before the chuck portions are rotated.

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