WO2011102081A1 - Procédé et appareil pour produire un produit en caoutchouc - Google Patents

Procédé et appareil pour produire un produit en caoutchouc Download PDF

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Publication number
WO2011102081A1
WO2011102081A1 PCT/JP2011/000386 JP2011000386W WO2011102081A1 WO 2011102081 A1 WO2011102081 A1 WO 2011102081A1 JP 2011000386 W JP2011000386 W JP 2011000386W WO 2011102081 A1 WO2011102081 A1 WO 2011102081A1
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WO
WIPO (PCT)
Prior art keywords
rubber
processing tool
rubber member
processing
joint
Prior art date
Application number
PCT/JP2011/000386
Other languages
English (en)
Japanese (ja)
Inventor
陽介 橋本
幸雄 岩本
卓 山村
Original Assignee
株式会社ブリヂストン
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Filing date
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Application filed by 株式会社ブリヂストン filed Critical 株式会社ブリヂストン
Publication of WO2011102081A1 publication Critical patent/WO2011102081A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/42—Endless textile bands without bead-rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02245—Abrading, e.g. grinding, sanding, sandblasting or scraping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7316—Surface properties
    • B29C66/73161—Roughness or rugosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73751—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
    • B29C66/73752—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized the to-be-joined areas of both parts to be joined being uncured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C2059/027—Grinding; Polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1406—Ultraviolet [UV] radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces to be joined

Definitions

  • This invention relates to a manufacturing method and apparatus for manufacturing rubber products such as carcass plies and belt plies.
  • Patent Document 1 As conventional rubber product manufacturing methods and apparatuses, for example, those described in Patent Document 1 below are known.
  • a calendered raw fabric is formed by coating a plurality of cords with unvulcanized rubber using a calender device, and then wound once while the calendered raw fabric is superposed on a stock cloth liner cloth. Take a roll and mold it. Then, after storing the scroll in this state for a certain period of time, while unwinding the original fabric from the calendared scroll as necessary, the calendered original fabric is cut in the width direction to form the cut pieces one after another, Next, the side end surfaces extending in the cord length direction of these cut pieces are joined together to form a carcass ply sheet original fabric.
  • the roll of the calendered roll is stored for a certain period of time as described above. However, if this storage period becomes longer, the adhesive strength of the coated unvulcanized rubber surface decreases, and as a result, cutting is performed. There exists a subject that the joint strength of pieces will fall.
  • both end portions of the calendered original fabric are cut along the cords with a cutter between the cords immediately before being cut into pieces, and a small number of cords are embedded. By cutting off the narrow scrap members, the fresh unvulcanized rubber is exposed on both end surfaces of the calendered raw material, and then the side end surfaces of the cut pieces where the fresh unvulcanized rubber is exposed are joined together. It was.
  • An object of the present invention is to provide a rubber product manufacturing method and apparatus that can prevent generation of useless materials, can easily reduce production costs, and can prevent an increase in size of equipment.
  • the first object is to make the processing tool and the rubber member relative to each other while bringing the processing surface of the processing tool provided with a number of protrusions into sliding contact with the joint surface of the rubber member containing unvulcanized rubber.
  • a processing tool provided with a large number of protrusions on the processing surface, the processing surface being able to slidably contact with the joint surface of the rubber member containing unvulcanized rubber, and the processing surface of the processing tool on the joint surface of the rubber member
  • a moving means for roughening the bonding surface of the rubber member by relatively moving the processing tool and the rubber member when in sliding contact, and a bonding surface of the rubber member whose bonding surface is roughened This can be achieved by a rubber product manufacturing apparatus provided with a joining means that joins the joining surface of the rubber member by pressure contact.
  • the processing tool and the rubber member are relatively moved to roughen the joint surface. Therefore, even if the adhesive strength of the joint surface is reduced by long-term storage or the like, the roughened surface exposes fresh unvulcanized rubber to the joint surface and adjusts the shape of the joint surface. After that, since the roughened joint surface of the rubber member and the joint surface of the rubber member are joined by pressure contact, the joint strength of these joint surfaces can be easily improved. At this time, it is only necessary to roughen the joint surface, and it is not necessary to cut the vicinity of the joint surface, so that narrow scrap members are not generated. As a result, generation of useless material is prevented and production is prevented. The cost can be easily reduced, and the equipment can be prevented from being enlarged.
  • the adhesive strength of fresh unvulcanized rubber exposed on the joint surface can be maintained at a high value.
  • the inside fresh unvulcanized rubber can be exposed by the said roughening.
  • the joining surface can be roughened with high efficiency, and if constituted as in claim 6, the structure of the processing tool is simple. Therefore, it can be manufactured at low cost.
  • Embodiment 1 of this invention It is a schematic front view which shows Embodiment 1 of this invention. It is a top view of Embodiment 1 of this invention. It is a perspective view explaining the state which has roughened the joint surface with the processing tool. It is sectional drawing which shows a part of processing tool.
  • Embodiment 1 of the present invention will be described below with reference to the drawings.
  • 11 is a winding roll formed by winding a belt-like member 12 as a rubber member and a liner 13 in a state of overlapping with each other, and the winding roll 11 has a certain degree of winding. After being stored in this state for a period of time, when it is rotated as necessary, the belt-like member 12 and the liner 13 are unwound from the winding roll 11 while being separated.
  • the belt-like member 12 is configured by, for example, covering the periphery of a plurality of reinforced cords 14 with unvulcanized rubber 15 using a calendar device or the like (not shown), and a part thereof Contains unvulcanized rubber, and in particular, the surface portion is composed of unvulcanized rubber.
  • the liner 13 for example, a long belt-like polyethylene sheet, a cloth fabric or the like is used.
  • the liner 13 unwound from the winding roll 11 as described above is wound around the winding reel 16 driven and rotated by a motor (not shown) one after another.
  • the belt-like member 12 unwound from the winding roll 11 is taken up by a moving means 19 comprising a motor 17 and a pair of supply rollers 18 driven and rotated by the motor 17.
  • the belt-like member 12 is wound. It travels toward the moving means 19 while being guided by a plurality of guide rollers 20, 21, and 22 disposed between the roll 11 and the moving means 19, and after passing through the moving means 19, a horizontal plate-like shape Is supplied onto the guide plate 23.
  • Reference numeral 24 denotes a first conveyor which is arranged in the vicinity of the guide plate 23 and extends in the front-rear direction, and runs intermittently by a motor (not shown), and the guide plate 23 is disposed at the rear end of the first conveyor 24.
  • the belt-like member 12 is supplied from the width direction of the first conveyor 24.
  • the 26 is cutting means installed at the rear end (upstream end) of the first conveyor 24 and having a cutter 27.
  • the cutter 27 of the cutting means 26 moves in the front-rear direction, the rear end of the first conveyor 24
  • the starting end of the belt-like member 12 supplied above is cut by the cutter 27 in the width direction of the belt-like member 12, and a rectangular sheet piece 28 is cut out from the belt-like member 12.
  • the sheet piece 28 thus cut out from the belt-like member 12 is conveyed forward by the travel of the first conveyor 24.
  • the reinforcing cord 14 of the sheet piece 28 is in the width direction of the first conveyor 24. It extends to.
  • 31 is a second conveyor that is installed immediately before the first conveyor 24 and extends along an extension line of the first conveyor 24.
  • the second conveyor 31 is driven by a motor (not shown) to intermittently move back and forth.
  • Drive to. 32 is a joining means installed between the first conveyor 24 and the second conveyor 31, and this joining means 32 is located on the first conveyor 24 and the front end face of the sheet piece 28 (rubber member) as the succeeding sheet.
  • the following sheet piece 28 (rubber member) and the preceding sheet piece 28 (rubber member) are butt-joined to each other by moving the second conveyor 31 to move the preceding sheet piece 28 in the longitudinal direction of the reinforcing cord 14.
  • the rear end face 28b extending to the rear is conveyed rearward until it reaches between the first and second conveyors 24, 31, while the following sheet piece 28 is extended in the longitudinal direction of the reinforcing cord 14 by the traveling of the first conveyor 24.
  • the front side end face 28a is conveyed forward until it reaches the space between the first and second conveyors 24, 31, and a slight gap having a constant width is provided between these front and rear end faces 28a, 28b.
  • the joining means 32 draws the following, the front of the preceding sheet piece 28, and the rear side end faces 28a and 28b together, and press-contacts them.
  • the carcass as a rubber product in which the reinforcing cord 14 is embedded is obtained by joining the front end face 28a of the succeeding sheet piece 28 one after another to the rear end face 28b of the preceding sheet piece 28 in this way.
  • the ply sheet member 33 is formed.
  • the following and preceding sheet pieces 28 are both cut out from the band-shaped member 12, they similarly correspond to the rubber members in the present invention.
  • the joining surfaces (front and back side end surfaces) of these sheet pieces are connected to each other.
  • a sheet-like member for a belt ply as a rubber product may be formed.
  • the reinforcing cord in the sheet-like member is inclined at a predetermined angle with respect to the longitudinal direction.
  • the winding roll 11 is stored in a roll shape for a certain period of time, and then the belt-like member 12 is unwound from the winding roll 11, but if this storage period becomes longer, the circumference of the reinforcing cord 14 is increased.
  • the adhesive force on the surface of the unvulcanized rubber 15 that is coated may decrease, and as a result, the bonding strength between the sheet pieces 28 may decrease.
  • the both ends of the belt-like member 12 are cut by a cutter between the guide roller 20 and the guide roller 21, and a small number of reinforcements are made.
  • the fresh unvulcanized rubber 15 is exposed on both side end surfaces (front and rear end surfaces 28a, b) of the belt-like member 12 (sheet piece 28) by cutting off the narrow scrap member in which the cord 14 is embedded. I was doing.
  • both end surfaces of the belt-like member 12 are located at the positions where the cutters are disposed between the guide rollers 20 and 21.
  • a pair of roughening mechanisms 36 for roughening the side end faces 28a, b) are provided.
  • Each roughening mechanism 36 has a support plate 37 that is disposed close to the side end surface of the belt-like member 12 and extends along the belt-like member 12, and an axis line extends in the thickness direction of the belt-like member 12.
  • a cylindrical processing tool 38 is rotatably supported, and an output shaft (not shown) of a drive motor 40 attached to the support plate 37 is connected to the processing tool 38.
  • the processing tool 38 rotates at high speed around its own axis, and the peripheral speed of the processing tool 38 at this time is considerably higher than the traveling (moving) speed of the belt-like member 12.
  • the processing tool 38 is composed of a rotating body that rotates around the axis.
  • Each of the above-described processing tools 38 has a processing surface 43 on the outer peripheral surface, and the processing surface 43 is inclined in one direction with respect to the axial direction and has a plurality of parallel fine grooves 44 extending in a spiral shape and an axial direction. Are formed in a plurality of parallel narrow grooves 45 that are inclined in the other direction (opposite to the one direction) and extend in a spiral shape, both of which have a V-shaped cross section. Crossing each other at many places. In this way, when a large number of narrow grooves 44 and 45 intersecting each other are formed on the processing surface 43 of each processing tool 38, the processing surface 43 is tapered toward the outer side in the radial direction between the narrow grooves 44 and 45. A large number of projections 47 having a quadrangular pyramid shape or a truncated quadrangular pyramid shape are defined.
  • the belt-like member 12 is guided such that the processed surface 43 is brought into rolling contact with both side end faces and the sliding face 43 is surely brought into sliding contact with both side end faces of the belt-like member 12.
  • the block-shaped processing tool having a large number of protrusions formed on the processing surface is reciprocated in the longitudinal direction or the thickness direction of the rubber member, so that the processing surface is slid on the bonding surface of the rubber member. You may make it contact.
  • the strip-shaped member 12 is moved with respect to the processing tool 38. Since the bonding surface has been roughened, even if the adhesive strength of the bonding surface has decreased due to long-term storage or the like, fresh unvulcanized rubber 15 is exposed to the bonding surface due to the roughening, and Even if the surface has irregularities, the bonding surface is adjusted to a flat shape suitable for bonding.
  • the joining surface of the sheet piece 28 as a rubber member cut out from the belt-like member 12 in this case, the front end face 28a of the succeeding sheet piece 28 and the rear end face 28b of the preceding sheet piece 28 are pressure-contacted to both sheets. Since the bonding surfaces of the pieces 28 are bonded to each other, the bonding strength between the bonding surfaces can be easily improved.
  • the joining surface (front end surface 28a) of the rubber member (following sheet piece 28) and the joining surface (rear end surface 28b) of the rubber member (previous sheet piece 28) are both roughened. This is preferable because the bonding strength between the bonding surfaces is improved. When fresh unvulcanized rubber is exposed on the joint surface of one of the rubber members, roughening of the joint surface of the rubber member on which the unvulcanized rubber is exposed is omitted. You can also
  • a large number of parallel narrow grooves 44, 45 are formed on the processing surface 43 of the processing tool 38, so that a large number of protrusions 47 are defined between the narrow grooves 44, 45.
  • the structure of the processing tool 38 becomes simple and can be manufactured at low cost.
  • a large number of narrow grooves intersecting each other with a rectangular or U-shaped cross section are formed on the processing surface 43 of the processing tool 38 so that a large number of protrusions are defined between the narrow grooves.
  • the protrusion has a quadrangular prism shape.
  • the narrow groove may be only inclined in one direction or the other direction, and the protrusion in this case is a protrusion extending in a spiral shape.
  • the processing tool may be composed of a grinding wheel, and in this case, the abrasive grains protruding from the binder surface of the grinding wheel become the projection of the present invention.
  • the processing tool is constituted of a grinding wheel in this way, when the joint surface is roughened, the joint surface is scraped off, so a slight amount of chips are generated, but such chips adhere to the joint surface. Then, there is a possibility that the bonding strength may be reduced, and if the cutting powder is in a semi-vulcanized state by pre-crosslinking or the like, there is a possibility that it may become a foreign substance, resulting in a decrease in quality, and may further deteriorate the working environment. .
  • the processing tool 38 is composed of a rotating body that rotates around the axis, and a number of protrusions 47 are provided on the processing surface 43 that is the outer peripheral surface of the processing tool 38.
  • the joining surface can be easily roughened with high efficiency as compared with the case where the both side end surfaces of the belt-like member 12 are roughened by making the processing tool reciprocating.
  • the joint surfaces (front and rear end surfaces) of the sheet piece 28 cut out from the strip member 12 are used. 28a and b) are bonded to each other.
  • the roughened bonding surface and the rubber member are bonded within 24 hours from the time when the bonding surface of the rubber member is roughened by a processing tool. It is preferable to press-contact the joint surface. The reason is that if the pressure welding is performed within the above-mentioned time, the adhesive strength of fresh unvulcanized rubber exposed on the bonding surface can be maintained at a high value, and the bonding strength can be easily improved. Because it can.
  • the joining surface of the band-shaped member 12 is irradiated with energy rays and pre-crosslinked, but in this case, even if it is not stored for a long time, it is pre-crosslinked.
  • the fresh unvulcanized rubber 15 is not exposed on the joint surface of the existing part. Even in such a case, the bonding strength can be easily improved by roughening the entire bonding surface with the processing tool and exposing the fresh unvulcanized rubber inside the bonding surface.
  • the energy beam include an electron beam, ultraviolet rays, X-rays, and gamma rays.
  • the rubber member may be a belt-like tread rubber, an inner liner, an endless power transmission belt, or the like made entirely of unvulcanized rubber.
  • the rubber member may be joined.
  • the rubber members ring-shaped tread rubber and the like
  • the rubber member is stopped while the processing tool is moved, or both the rubber member and the processing tool are moved so that the rubber member and the processing tool are moved relatively. It may be.
  • Embodiment 1 Next, the operation of Embodiment 1 will be described. Now, it is assumed that the winding roll 11 rotates and the belt-like member 12 and the liner 13 are unwound while being separated from the winding roll 11. At this time, the liner 13 unwound from the take-up roll 11 is taken up by the take-up reel 16 and wound around the take-up reel 16 in a roll shape one after another. On the other hand, the belt-like member 12 as a rubber member unwound from the winding roll 11 is taken up by the moving means 19, and moves and travels toward the moving means 19 while being guided one after another by the guide rollers 20, 21, and 22.
  • the processing tool 38 of the roughening mechanism 36 installed between the guide rollers 20 and 21 rotates at a high speed, and the processing surfaces 43 are pressed against both end surfaces of the belt-like member 12, respectively.
  • the machining surface 43 of the tool 38 is in sliding contact with both end surfaces of the belt-like member 12.
  • the belt-like member 12 passes between the supply rollers 18 of the moving means 19, the belt-like member 12 is supplied to the guide plate 23 and the rear end of the first conveyor 24. At this time, the cutter of the cutting means 26 27, the starting end of the belt-like member 12 is cut in the width direction of the belt-like member 12, and a rectangular sheet piece 28 is cut out from the belt-like member 12.
  • the front end face 28a and the rear end face 28b of the sheet piece 28 are both roughened joint surfaces extending in the longitudinal direction of the reinforcing cord 14.
  • the second conveyor 31 travels and is conveyed rearward until the rear end face 28b of the preceding sheet piece 28 reaches between the first and second conveyors 24 and 31, and the first conveyor 24 travels.
  • the front end face 28a of the succeeding sheet piece 28 is similarly conveyed forward until it reaches the space between the first and second conveyors 24, 31, and the following, the front end face 28a of the preceding sheet piece 28, the rear end face 28a, A slight gap having a constant width is formed between b.
  • the joining surface (front and rear end surfaces 28a, b) of the sheet piece 28 is roughened by the processing tool 38 as described above. Since the fresh unvulcanized rubber 15 is exposed and is adjusted to a shape suitable for bonding, the bonding surfaces (front and rear end surfaces 28a, b) are easily bonded with high strength. Thereafter, the sheet-like member 33 is conveyed forward by the travel of the second conveyor 31.
  • the diameter (mm) of the rotating body used for molding the rubber members 1 to 6 and the peripheral speed (m / min) on the processed surface (outer peripheral surface) are as shown in Table 1 below. Note that the number of protrusions per rotation in a rotating body having a diameter of 6 mm and 16 mm was 21 and 39, respectively. Further, the diameter (mm) of the diamond grindstone used for forming the rubber member 7 and the peripheral speed (m / min) on the processed surface (outer peripheral surface) are as shown in Table 1 below. The grain size of the diamond grindstone was No. 140. Next, after joining the joining surfaces of the conventional rubber member and the implementation rubber members 1 to 7 together, the joining ratio (%) at the joining portion of each rubber member was measured. The results are shown in Table 1 below. Show. Here, the joining ratio of 100 means that joining is performed on the entire joining surface, that is, an area of 100%.
  • the adhesive strength (N), that is, the tack value of each rubber member was measured using a commercially available tack meter, and the results are shown in Table 1 above.
  • the bonded rubber members were pulled at a speed of 30 ⁇ 2 mm / min, and these rubber members were subjected to extremely severe strength tests with an elongation rate of 400%. At this time, it was detected whether or not the joint at the joint portion was disconnected, and the result is shown in Table 1 as the joint strength.
  • the adhesive strength of the implementation rubber member 7 is higher than the adhesion strength of the implementation rubber members 1 and 4, the disconnection occurred in the strength test because of the chips generated during the molding of the implementation rubber member 7. This is considered to be because of adhering to the joint surface.
  • This invention can be applied to the industrial field of manufacturing rubber products such as carcass plies and belt plies.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Tyre Moulding (AREA)

Abstract

L'invention porte sur un procédé pour produire des produits en caoutchouc, qui réduit les coûts de production tout en évitant la production de matière gaspillée, et qui évite d'augmenter la taille de l'équipement. La surface travaillante (43), qui comporte un grand nombre de saillies (47), d'un outil travaillant (39) est mise en contact glissant avec une surface de joint (surface d'extrémité latérale) d'un élément en forme de bande (12), et l'élément en forme de bande (12) est amené à se déplacer par rapport à l'outil travaillant (38) pour dépolir la surface de joint et, de cette façon, même si la propriété adhésive de la surface de joint est diminuée par suite d'un stockage de longue durée, etc., du caoutchouc non vulcanisé frais peut être exposé sur la surface de joint par le dépolissage, et la surface de joint peut être façonnée en une forme plate appropriée pour être assemblée. Si les surfaces de joint des éléments en caoutchouc sont assemblées par la suite, la résistance de joint peut facilement être améliorée.
PCT/JP2011/000386 2010-02-18 2011-01-25 Procédé et appareil pour produire un produit en caoutchouc WO2011102081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-033773 2010-02-18
JP2010033773A JP2011167928A (ja) 2010-02-18 2010-02-18 ゴム製品の製造方法および装置

Publications (1)

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WO2011102081A1 true WO2011102081A1 (fr) 2011-08-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148743A (ja) * 1982-03-01 1983-09-03 Kouhoku Gomme Seisakusho:Kk ウレタンゴムと汎用ゴムとの接着方法
JPH08245928A (ja) * 1995-03-09 1996-09-24 Bridgestone Corp 加硫ゴム／未加硫ゴムの接着方法
JPH11130918A (ja) * 1997-08-20 1999-05-18 Goodyear Tire & Rubber Co:The 未硬化ゴムコンパウンドへの予備硬化ゴムコンパウンドの硬化接着性を改善する方法
JP2003176458A (ja) * 1994-10-27 2003-06-24 Bridgestone Corp 接着に供される加硫ゴム表面の処理方法
JP2010046986A (ja) * 2008-08-25 2010-03-04 Bridgestone Corp タイヤ製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148743A (ja) * 1982-03-01 1983-09-03 Kouhoku Gomme Seisakusho:Kk ウレタンゴムと汎用ゴムとの接着方法
JP2003176458A (ja) * 1994-10-27 2003-06-24 Bridgestone Corp 接着に供される加硫ゴム表面の処理方法
JPH08245928A (ja) * 1995-03-09 1996-09-24 Bridgestone Corp 加硫ゴム／未加硫ゴムの接着方法
JPH11130918A (ja) * 1997-08-20 1999-05-18 Goodyear Tire & Rubber Co:The 未硬化ゴムコンパウンドへの予備硬化ゴムコンパウンドの硬化接着性を改善する方法
JP2010046986A (ja) * 2008-08-25 2010-03-04 Bridgestone Corp タイヤ製造方法

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