TW201703060A - Flat cable for moveable member wiring capable of inhibiting abrasion and dust evolution accompanied by the abrasion - Google Patents

Abstract

The present invention provides a flat cable for moveable member wiring, which can inhibit abrasion and dust evolution accompanied by the abrasion. In addition, based on the type of products to be manufactured, the specification of the flat cable for moveable member wiring and the number of air pipes are flexibly adjusted so as to effectively remove static electricity. A flat cable for moveable member wiring (100) is constituted by a plurality of air pipes (102) arranged in parallel for enabling a cable for moveable member wiring (101) to be inserted therein or removed therefrom. The air pipe (102) includes: a high elasticity tube (114) consisting of polyurethane resin; an intermediate layer (115) formed on an outer periphery of the high elasticity tube (114) and consisting of semi-conductive material that contains conductive micro particles and insulating resin; and an outer layer (116) formed on an outer periphery of the intermediate layer (115) and consisting of an insulating material that contains fluoro-rubber and fluoro-resin, wherein the outer layer (116) is fixed mutually.

Description

Flat cable for movable parts wiring

The present invention relates to a flat cable for a movable member wiring that can withstand repeated U-shaped bending.

In the precision production line for manufacturing a semiconductor or the like, in order to prevent the disconnection of the movable member wiring line that is subjected to the repeated U-shape bending in accordance with the operation of the surface mounting device or the like, the movable member wiring cable is held in the cable. Cableveyor (registered trademark) (for example, refer to Patent Document 1). In this case, in order to realize the repeated U-bend of the wire for the movable member wiring, the movable member wiring cable and the air tube may be bonded in parallel to form a flat cable for the movable member wiring (for example, refer to the patent document) 2).

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-243839

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2009-246284

However, in order to prevent disconnection of the wire for the movable member wiring, a sheath made of a highly flexible resin such as polyvinyl chloride (PVC) resin, polyurethane (PU) resin or polyolefin (PO) resin is used, thereby improving Since the flat cable of the movable member wiring is flexible, it is difficult to maintain the travelability of the flat cable for the movable member wiring when subjected to repeated U-bend bending, and the flat cable of the movable member wiring is drooped and wired. Structures such as drag chains are in contact. As a result, the flat cable for the movable member wiring is worn out or the dust generated by the wear is increased, so that there is a possibility that product defects frequently occur in the precision production line.

Furthermore, in recent years, a single precision production line has been used to manufacture a variety of The multi-objective production method of the product is gradually adopted, and it is necessary to flexibly change the specification of the wire for the movable member wiring and the number of the air tubes depending on the type of the product to be manufactured, but the wire and the air tube for the movable member wiring are used. Since the integration has been carried out, the specifications of the cable for the movable member wiring and the number of air tubes cannot be changed after that.

In addition, due to the rapid spread of smart phones and tablet terminals, there is a demand for high-speed production of precision production lines. Therefore, flat cable wires for movable device wiring may be subjected to repeated U-shaped bending at a higher speed than ever. When the flat cable for the movable member wiring is subjected to repeated U-shaped bending at a high speed, static electricity is likely to be generated in the flat cable for the movable member wiring, and the static-induced product may be defective.

In view of the above, it is an object of the present invention to provide a flat cable for a movable member wiring, which is capable of suppressing abrasion and dust generated by wear, and the specification of the wire for the movable member wiring and the air tube according to the type of the product to be manufactured. The number of roots is flexibly changed and the static electricity is effectively removed.

The present invention is a flat cable for a movable member wiring, which is a flat cable for a movable member wiring in which a plurality of air tubes formed by inserting and removing a movable member wiring line are arranged in parallel, and the air tube includes: a highly elastic tube composed of a polyurethane resin; an intermediate layer formed on the outer periphery of the aforementioned high elastic tube and composed of a semiconductive material containing conductive particles and an insulating resin; and an outer periphery formed on the intermediate layer and containing a fluororubber and An outer layer made of an insulating material of a fluororesin, and the outer layers are fixed to each other.

The conductive fine particles are preferably carbon black, and the insulating resin is a vinyl chloride resin, a polyethylene resin, a polypropylene resin or a polyolefin resin.

The insulating material preferably contains the fluororubber and the fluororesin in a mass ratio of 95:5 to 20:80.

The fluororesin preferably contains polytetrafluoroethylene and a molten fluororesin in a mass ratio of 99.5:0.5 to 75:25.

The air tube preferably further has an inner layer formed of an inner circumference of the high elastic tube and made of a fluororesin.

Preferably, the wire for the movable member wiring is made of a fluororesin. The outermost layer.

According to the present invention, it is possible to provide a flat cable for a movable member wiring, which is capable of suppressing abrasion and dust generated by wear, and the specification of the wire for the movable member and the root of the air tube can be selected according to the type of the product to be manufactured. The number is flexibly changed and the static electricity can be effectively removed.

100‧‧‧flat cable for movable parts wiring

101‧‧‧Removable parts wiring cable

102‧‧‧ air tube

103‧‧‧Conductor

104‧‧‧ Stranded conductor

105‧‧‧Insulator

106‧‧‧Wire

107‧‧‧ Stranded wire

108‧‧‧ 介物

109‧‧‧Tie straps

110‧‧‧Shield

111‧‧‧ sheath

112‧‧‧ inner layer

113‧‧‧ outer layer

114‧‧‧High elastic tube

115‧‧‧Intermediate

116‧‧‧ outer layer

117‧‧‧ inner layer

Fig. 1 is a cross-sectional view showing a flat cable for a movable member wiring of the present invention.

Fig. 2 is a cross-sectional view showing an example of a wire for a movable member wiring.

Fig. 3 is a cross-sectional view showing an example of a wire for a movable member wiring.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in Fig. 1, in the flat cable 100 for movable member wiring according to the embodiment of the present invention, a plurality of air tubes 102 are arranged in parallel, and are fixed to each other by welding or the like (for example, hot air welding). The inner diameter of the air tube 102 is formed to be a size of the pluggable wiring line 101 for plugging and unmovable, and a plurality of air tubes 102 can be used as an air tube for air driving, and a movable member wiring can be inserted in other portions. The wire 101 may be inserted into the movable member wiring wire 101 (the portion not serving as the air pipe); or a part may not be used.

Next, a flat cable 100 for a movable member wiring which is used by mixing an air tube and a wire for a movable member wiring will be described. The air tube 102 in which the movable member wiring cable 101 is inserted and the air tube 102 in which the movable member wiring cable 101 is not inserted can be disposed in any order, and a plurality of movable member wiring rows can be arbitrarily inserted into one air tube 102. Line 101 is also available.

The movable member wiring cable 101 may be a cable or an optical cable. For example, as shown in FIG. 2, an insulating insulator 105 as the outermost layer is formed around the stranded conductor 104 obtained by twisting a plurality of conductors 103. .

At this time, the insulator 105 is preferably composed of an ethylene-tetrafluoroethylene copolymer. (ETFE) resin, tetrafluoroethylene-hexafluoropropylene copolymer (FEP) resin, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) resin or polytetrafluoroethylene (PTFE) resin, etc. Made of fluororesin.

As a result, in the air tube 102 in which the movable member wiring cable 101 is inserted, it is possible to suppress the occurrence of wear due to the contact between the movable member wiring cable 101 and the air tube 102, and the dust generated by the wear.

Further, as for the movable member wiring cable 101, for example, as shown in FIG. 3, the binding tape may be wound around the strands 107 formed by twisting a plurality of electric wires 106 via the interposer 108. The binding tape 109 is coated with the following elements in order: a shield member 110 such as a braided shield or a horizontally wound shield obtained by knitting and winding a plurality of bare wires, and a sheath 111 element.

Wherein, the sheath 111 is preferably composed of an inner layer 112 made of a highly flexible resin such as a polyvinyl chloride resin, a polyurethane resin or a polyolefin resin; and an outer periphery formed on the inner layer 112 and composed of ethylene-tetrafluoroethylene. An outer layer of an outer layer formed of an ethylene copolymer resin, a tetrafluoroethylene-hexafluoropropylene copolymer resin, a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin, or a polytetrafluoroethylene resin having a low dusting fluororesin 113.

With this configuration, the air tube 102 in which the movable member wiring cable 101 is inserted can suppress the abrasion caused by the contact between the movable member wiring cable 101 and the air tube 102, and the dust generated by the wear and tear, and can be imparted. The movable member wiring cable 101 has high flexibility.

It is to be noted that, instead of providing the sheath 111, the plurality of wires 106 may be simply wound by the binding tape 109 to form the movable member wiring wire 101, but it must be made of an ethylene-tetrafluoroethylene copolymer resin. A fluororesin having a low dusting property such as a tetrafluoroethylene-hexafluoropropylene copolymer resin, a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin or a polytetrafluoroethylene resin forms a binding tape 109 as the outermost layer.

Referring to Fig. 1, the air tube 102 is provided with a high elastic tube 114 made of a polyurethane resin, and an intermediate layer 115 formed of an outer circumference of the high elastic tube 114 and made of a semiconductive material containing conductive fine particles and an insulating resin. The outer periphery of the intermediate layer 115 and an outer layer 116 composed of an insulating material containing a fluororubber and a fluororesin, The layers 116 are fixed to each other by welding.

The high elastic tube 114 serves to improve the flexibility of the air tube 102 and to improve the flexibility of the flat wire 100 for the movable member wiring, and the intermediate layer 115 serves to impart conductivity to the air tube 102 and prevent the air tube 102 from being charged. The outer layer 116 serves to improve the wearability and dustiness of the air tube 102 while maintaining the flexibility of the air tube 102.

Here, the semiconductive material preferably has a volume resistivity of 0.1 to 10 ³ Ω. The method of cm contains conductive fine particles in the insulating resin; the conductive fine particles are preferably carbon black, and the insulating resin is vinyl chloride resin, polyethylene resin, polypropylene resin or polyolefin resin.

Thereby, even if static electricity is generated in the flat wire 100 for the movable member wiring, the static electricity can be converted into heat energy, and static electricity can be effectively removed. Further, since the vinyl chloride resin has high flexibility, it is possible to suppress a decrease in flexibility of the air tube 102 by using a vinyl chloride resin as the insulating resin.

Further, the thickness of the intermediate layer 115 is preferably 0.1 mm or more and 0.5 mm or less. The reason for this is that the effect of removing static electricity is deteriorated when the thickness of the intermediate layer 115 is less than 0.1 mm, and when the thickness of the intermediate layer 115 exceeds 0.5 mm, the overall outer diameter becomes thick, and it is likely to sag due to its own weight.

Further, the thickness of the intermediate layer 115 is preferably 1/10 or more and 1/2 or less of the thickness of the high elastic tube 114. The reason is that when the thickness of the intermediate layer 115 is less than 1/10 of the thickness of the elastic tube 114, the effect of removing static electricity generated by the high elastic tube is deteriorated, and the thickness of the intermediate layer 115 exceeds 1/ of the thickness of the high elastic tube 114. At 2 o'clock, the elasticity of the high elastic tube is impaired, and the flat cable is generally heavy and easy to sag.

Further, the insulating material preferably contains a fluorine rubber and a fluororesin in a mass ratio of 95:5 to 20:80, and the fluororesin preferably contains a polytetrafluoroethylene and a molten fluororesin in a mass ratio of 99.5:0.5 to 75:25. As an insulating material which satisfies these conditions, DAI-EL (registered trademark) Fluoro TPV manufactured by Daikin Industries, Ltd. is mentioned.

With this, it is possible to form a high-flexibility and high dusting property of the fluororesin and high flexibility and high elasticity of the fluororubber (the elastic flatness is improved when the flat wire 100 for the movable member wiring is subjected to repeated U-bend bending) The outer layer 116 of the marching.

Therefore, by providing the outer layer 116, it is possible to improve the flat wire 100 for the movable member wiring when the U-shaped bending is repeated without impairing the flexibility of the flat wire 100 for the movable member wiring and the resistance to repeated U-bend. Progressive.

It is to be noted that the outer layer 116 also has high oil resistance, high chemical resistance and high weather resistance of the fluororesin, and thus, in an oil environment, an acidic environment, an alkaline environment, and an ultraviolet exposure environment, etc. The flat cable 100 for the movable member wiring can be used.

Further, the thickness of the outer layer 116 is preferably 0.2 mm or more and 0.4 mm or less. The reason for this is that when the thickness of the outer layer 116 is less than 0.2 mm, there is a concern that the flat wire 100 for the movable member wiring is wrinkled when subjected to repeated U-bending, and eventually the outer layer 116 is wrinkled, and finally the crack is formed to expose the high elastic tube 114. surface. In addition, when the thickness of the outer layer 116 is more than 0.4 mm, the repulsive force of the flat wire 100 for the movable member wiring is increased when the U-shaped bending is repeated, and the flat wire 100 for the movable member wiring is applied to the wire drawing chain or the like. Since the pressure of the object becomes large, there is a fear that the life of the structure such as the cable drag chain is shortened.

Further, the thickness of the outer layer 116 is preferably 1/5 or more and 1/2 or less of the thickness of the high elastic tube 114. When the thickness of the outer layer 116 is less than 1/5 of the thickness of the elastic tube 114, it is difficult to maintain the travelability of the flat wire 100 for the movable member wiring, and the flat wire 100 for the movable member is sagged. The flat wire 100 for the movable member wiring is in contact with a structure such as a cable drag chain, and there is a fear that the inner layer 116 is scraped and high during use of the flat wire 100 for the movable member wiring (for example, about five years). The elastic tube 114 exposes the surface. When the thickness of the outer layer 116 exceeds 1/2 of the thickness of the high elastic tube 114, the flexibility of the flat cable 100 for the movable member wiring is impaired, thereby making it difficult to maintain the same level of resistance as the conventional one. Word bendability. Further, an insulating material such as DAI-EL (registered trademark) Fluoro TPV is expensive compared with other resins, and thus the product cost is remarkably increased when used in a large amount.

In addition, the air tube 102 preferably further has an inner circumference formed on the high elastic tube 114 and is composed of an ethylene-tetrafluoroethylene copolymer resin, a tetrafluoroethylene-hexafluoropropylene copolymer resin, and a tetrafluoroethylene-perfluoroalkyl ethylene. The inner layer 117 composed of a fluororesin having a low dusting property such as a base ether copolymer resin or a polytetrafluoroethylene resin.

As a result, in the air tube 102 in which the movable member wiring cable 101 is inserted, it is possible to suppress the abrasion caused by the contact between the movable member wiring cable 101 and the air tube 102, and the dust generated by the wear.

As described above, the flat wire 100 for the movable member wiring is provided with the outer layer 116 made of an insulating material containing fluororubber and fluororesin on the outermost surface, so that the flat cable 100 for the movable member wiring can be improved when subjected to repeated U-bend bending. Travelability, wear and dust.

In the flat cable 100 for the movable member wiring, since the inner diameter of the air tube 102 is sized so that the movable member wiring cable 101 can be easily inserted and removed, the movable member wiring inserted into the air tube 102 can be used. The cable 101 is exchanged, or the movable member wiring wire 101 inserted into the air tube 102 is taken out and used as an air tube, and a new movable member wiring cable 101 is inserted into the air tube 102 serving as an air tube. By operating in this manner, the air tube 102 into which the movable member wiring cable 101 is inserted and the air tube 102 in which the movable member wiring cable 101 is not inserted can be disposed in an arbitrary order and the number of the air tubes 102. The type of the movable member wiring cable 101 and the number of the air tubes 102 are flexibly changed.

Further, in the flat cable 100 for movable member wiring, since the intermediate layer 115 made of a semiconductive material containing conductive fine particles and an insulating resin is provided between the high elastic tube 114 and the outer layer 116, it is effective The static electricity generated when the flat cable 100 for the movable member wiring is subjected to repeated U-shaped bending is removed.

Therefore, according to the present invention, it is possible to provide a flat cable 100 for a movable member wiring, which can suppress the abrasion and the dust generated by the wear, and the size and air of the movable member wiring cable 101 can be made according to the type of the product to be manufactured. The number of tubes 102 is flexibly changed, and static electricity can be effectively removed.

Further, the flat wire 100 for the movable member wiring has high ductility when subjected to repeated U-shaped bending, and is not likely to sag even when wiring is carried over a long distance, thereby avoiding the use of the cable drag chain and contributing to the surface. Miniaturization of mounting devices and the like.

[Examples]

Next, a specific example of the present invention will be described.

The outer circumference of a highly elastic tube having an inner diameter of 4 mm and an outer diameter of 6 mm and composed of a polyurethane resin is formed in order: the volume resistivity is made 1 Ω. An intermediate layer formed of a carbon black and a semiconductive material of a vinyl chloride resin and having a thickness of 0.2 mm; and an outer layer formed of DAI-EL (registered trademark) Fluoro TPV and having a thickness of 0.2 mm, thereby producing an outer layer Eight air tubes having a diameter of 6.8 mm were fixed in parallel by welding. Three air tubes of the eight air tubes are used as air tubes for air driving, and a wire for movable member wiring such as a power supply line or a signal line is inserted into the remaining air tubes to produce a flat cable for the movable member wiring.

Then, the wire is wired on the precision production line without holding the flat wire for the movable member wiring in the wire drawing chain. As a result, the moving distance of the U-shaped bending is 1.5 m. The flat cable is also not drooping. In addition, even if the bending radius is 40.8 mm (6 times the outer diameter of the air tube), the folding speed is 30 times/min, and the moving distance is 1.5 m, the repeated U-shaped bending is performed for 10 million times or more, and no wear and tear are caused. The dust that has occurred. Further, the static electricity generated by the air tube when subjected to repeated U-bends can be removed by absorption by the intermediate layer.

As described above, the effects of the present invention were confirmed.

100‧‧‧flat cable for movable parts wiring

101‧‧‧Removable parts wiring cable

102‧‧‧ air tube

114‧‧‧High elastic tube

115‧‧‧Intermediate

116‧‧‧ outer layer

117‧‧‧ inner layer

Claims (6)

A flat cable for a movable member wiring, which is a flat cable for a movable member wiring in which a plurality of air tubes formed by inserting and removing a movable member wiring line are arranged in parallel, the air tube having a highly elastic tube composed of a polyurethane resin; an intermediate layer formed on the outer periphery of the high elastic tube and composed of a semiconductive material containing conductive particles and an insulating resin; and an outer periphery formed on the intermediate layer and containing a fluororubber An outer layer composed of an insulating material of a fluororesin, wherein the outer layers are fixed to each other. The flat cable for a movable member wiring according to the first aspect of the invention, wherein the conductive fine particles are carbon black, and the insulating resin is a vinyl chloride resin, a polyethylene resin, a polypropylene resin or a polyolefin resin. The flat cable for movable member wiring according to the first or second aspect of the invention, wherein the insulating material contains the fluororubber and the fluororesin in a mass ratio of 95:5 to 20:80. The flat cable for movable member wiring according to the third aspect of the invention, wherein the fluororesin contains polytetrafluoroethylene and a molten fluororesin in a mass ratio of 99.5:0.5 to 75:25. The flat cable for a movable member wiring according to any one of the first to fourth aspect, wherein the air tube further has an inner layer formed of an inner circumference of the high elastic tube and made of a fluororesin. The flat cable for a movable member wiring according to any one of the first aspect, wherein the movable member wiring cable has an outermost layer made of a fluororesin.