GB2318082A - Method and apparatus for joining rubbery fabric - Google Patents

Method and apparatus for joining rubbery fabric Download PDF

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Publication number
GB2318082A
GB2318082A GB9620977A GB9620977A GB2318082A GB 2318082 A GB2318082 A GB 2318082A GB 9620977 A GB9620977 A GB 9620977A GB 9620977 A GB9620977 A GB 9620977A GB 2318082 A GB2318082 A GB 2318082A
Authority
GB
United Kingdom
Prior art keywords
plies
plane
rollers
ply
joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9620977A
Other versions
GB9620977D0 (en
Inventor
Brett Anthony Allen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to GB9620977A priority Critical patent/GB2318082A/en
Publication of GB9620977D0 publication Critical patent/GB9620977D0/en
Publication of GB2318082A publication Critical patent/GB2318082A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C66/43—Joining a relatively small portion of the surface of said 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
    • B29C66/737—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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81469—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed next to the other in a single line transverse to the feed direction, e.g. shoulder to shoulder sonotrodes
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8416—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different thickness
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92651—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops
    • B29C66/92653—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops said stops being adjustable
    • 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
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • 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
    • B29D2030/421—General aspects of the joining methods and devices for creating the bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/24—Endless tubes, e.g. inner tubes for pneumatic tyres
    • B29L2023/245—Inner tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • B29L2030/003—Plies; Breakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A method of joining two sheets or plies of an uncured rubbery material by forming a butt-joint between adjacent edges E 1 , E 2 comprises bringing the edges together under simultaneous pressure perpendicularly across the joint in the plane of the plies and perpendicularly to the plane of the plies. An apparatus for joining sheets in such a manner may comprise a pair of oppositely rotatable rollers 41, 42 each having a conical roll face for contacting the top surface of respective sheets to apply pressure in the plane of the sheets and co-operating cylindrical rollers to apply pressure perpendicularly to the plane of the sheets. The conical faced rollers may have concentric grooves on their gripping faces and intermeshing gears.

Description

METHOD AND TOOL FOR JOINING RUBBERED FABRIC The present invention relates to a method and a tool for the joining of pieces or plies of rubbery materials such as might be used in the manufacture of reinforced elastomeric articles such as tyres or belting.
The manufacture of such articles often requires the joining of cord reinforced sheets or plies, of uncured rubber in an operation often referred to as 'stitching' performed using a ply stitcher'. Often the rubbery plies have reinforcing cords running in only one direction in the ply. Such rubber plies may be joined by overlapping their edges but in the case where the joint is parallel to the cord running direction this results in a local increase in the ply thickness in the region of the overlap joint.
In such articles as tyres this can lead to an unacceptable disturbance in the uniformity of the product. Accordingly in tyre manufacture the joining of plies edge to edge in a butt-joint is very often preferred particularly where the reinforcing cords are steel.
Accordingly it is an object of the present invention to provide a method and a tool capable of joining rubbered fabric forming a butt-joint reliably and quickly.
According to one aspect of the invention a method of joining two sheets or plies of an uncured rubbery material by forming a butt-joint between adjacent edges in the same plane is characterised in that the edges are brought together under simultaneous pressures perpendicularly across the joint in the plane of the plies and perpendicularly to the plane of the plies.
Preferably the pressures are equal.
According to another aspect of the invention an apparatus for joining two sheets or plies of uncured rubbery material by forming a butt-joint between adjacent edges held in the same plane, characterised by means for applying pressure perpendicularly across the joint in a direction parallel to the plane of the plies and means for simultaneously applying pressure to the joint in a direction perpendicular to the plane of the plies.
Further aspects of the present invention will become apparent from the following description, by way of example only, of one embodiment and the following schematic drawings in which: Figure 1 is a schematic drawing showing a side elevation of a ply stitcher according to the present invention; Figure 2 is a section view of the stitcher taken through plane D-D' of Figure 1; Figure 3 is a bottom elevation of the stitcher of Figure 1 viewed in direction C; Figure 4 is a sectional view of the stitcher of Figure 1 taken along the plane A-A'; Figure 5 is a schematic drawing of one of the two bevel gears of the stitcher of Figure 1; and Figure 6 is a section view of the bevel gear of Figure 4 taken along plane B-B'; and Figure 7 is a schematic diagram illustrating the dual perpendicular pressing action of the method and apparatus of the invention.
The ply stitcher shown in Figures 1-6 is a handoperated tool designed to move in the direction of arrow M between two stationary adjacent ply edges in order to join them.
The stitcher comprises a main body 1 having an upright longitudinal guide plate 2, for guiding the tool between the ply edges El and E2, a tapered thickness bottom guide plate 3, on the bottom of the longitudinal guide plate 2, and slanting upper guide bars 4, one on each side of the longitudinal guide plate 2. The longitudinal guide plate 2, the bottom guide plate 3 and the upper guide bars 4 are arranged to guide and position the ply edges E1,E2 correctly for stitching at a stitching point SP at the rear of the tool.
Stitching occurs between surfaces on a pair of intermeshing bevel gears 5 positioned above the plies and a set of bottom rollers 7 below the ply.
The pair of bevel gears 5 are mounted on a mounting plate 6 which is pivotably fixed to the main body 1 at a point P and moveable in an arc in direction G towards and away from the bottom rollers 7 by means of the elongated slot 7 in the main body 6.
In the stitching operation the two pieces of ply material P1 and P2 are pressed between the pair of bevel gears and the bottom rollers. The gap d or nip' between the pair of bevel gears 5 and the set of rollers 7 is adjustable by means of the spring tensioned setting screw 9 in order to accommodate different thicknesses of ply material. The gap d is set to be less than the thickness of the ply material. The pair of bevel gears 5 are movable away from the bottom rollers against the spring tension provided by the coil spring 8 held in compression against the upper limb 10 of the main body 1. The gap d is adjusted so as to exert a force or pressure across the thickness of the ply equal to the force or pressure exerted across the joint in the plane of the plies.
Details of the pair of grooved bevel gears 5 are shown in Figures 4-6. The pair of gears are identical in size and shape and have intermeshing gear teeth 51 on their outer peripheries. They comprise a driven gear 42 which is driven by a drive gear 41 which is itself driven via a universal type coupling 43 by any suitable means such as a pneumatic or electric motor. The gears are turned in a direction T such that the stitched ply material exits from the rear of the tool which is propelled forward in the direction M. Each of the bevel gears 5 is disposed such that at the bottom its conical face 11 is parallel to the bottom set of rollers.
The point of contact or meshing point of the bevel gears is at the stitching point above the bottom set of rollers 7. Accordingly at that point the conical faces of two gears effectively form a continuous rolling surface which is parallel to the bottom set of rollers 7.
The bottom set of rollers 7 comprises, in this embodiment, three rollers 21-23. The rearmost roller 21 is the narrowest roller and comprises two independent roll sections 21a and 21b. The remaining rollers 22 and 23 are equal size and comprise four independent roll sections. The rotational axis of each of the three rollers 21-23 is parallel with the continuous rolling surface formed at the meshing point of the two conical faces of the bevel gears.
Each of the bevel gears is provided on its conical face with a series of shallow concentric grooves 61 which serve to enhance grip the rubbery surface of the ply. Accordingly as the edge of each ply is brought by 'the respective bevel gear towards their meshing point the ply edges are forced together in the plane of the ply by the action of the bevel gears whilst simultaneously being nipped between the bevel gears and the bottom rollers. This dual action in perpendicular directions ensures a well formed joint.
The dual pressing actions of the method and apparatus of the invention are illustrated in Figure 7 which shows diagrams of ply edges before and after stitching. Tyre cord fabric plies P1 and P2, each comprising steel cords 71 embedded in a matrix of rubber 70 are pressed together at edges El and E2.
The conical-faced bevel gears 5 act in the plane of the plies P1 and P2 bringing the ply edges El and E2 together and pressing in direction X in Figures 7a and 7b whilst the action of the bevel gears 5 in conjunction with the bottom set of rollers 7 presses the plies simultaneously in the perpendicular direction Y. Accordingly, as shown in Figure 7c, the plies are joined without substantial disturbance to the overall thickness of the ply or spacing of the cords. Thus a joint is formed with minimum deterioration of uniformity of the ply.
Whilst the above-described apparatus has pressure applied in direction Y perpendicular to the plane of the plies by means of a cylindrical roller or set of cylindrical rollers, this pressure on the lower surface of the ply may also be applied by a pair of conical-faced rollers similar or identical to the conical-shaped rollers contacting the upper ply surface.
The ply joining herein described has demonstrated the capability of forming butt-joints reliably and consistently in steel cord tyre fabric at speeds of up to 1Sm/min.

Claims (9)

1. A method of joining two sheets or plies (P1,P2) of an uncured rubbery material by forming a buttjoint between adjacent edges (El,E2) in the same plane, characterised in that the edges (E1,E2) are brought together under simultaneous pressure perpendicularly across the joint in the plane of the plies and perpendicularly to the plane of the plies.
2. A method of joining two sheets or plies (P1,P2) according to claim 1, characterised in that the pressure across the joint in the plane of the plies and the pressure perpendicular tb the plane of the plies are equal.
3. An apparatus for joining two sheets or plies (P1,P2) of uncured rubbery material by forming a butt-joint between adjacent edges (El,E2) held in the same plane, characterised by means for applying pressure perpendicularly across the joint in a direction (X) parallel to the plane of the plies and means for simultaneously applying pressure to the joint in a direction (Y) perpendicular to the plane of the plies.
4. An apparatus according to claim 3, characterised in that the means for applying pressure across the joint in a direction (X) parallel to the plane of the plies comprises a pair of oppositely rotatable rollers each having a conical roll-face for contacting the top surface of the respective plies, the rollers being disposed such that their conical faces meet to form in a straight line a continuous surface parallel to the ply surfaces and perpendicular to the direction of the ply edges.
5. An apparatus according to claim 4, characterised by the ply contacting conical faces of the rollers being provided with concentric grooves to enhance gripping of the ply surface.
6. An apparatus according to either of claims 4 or 5, characterised in that the rollers comprise two bevel gears (41,42), having intermeshing gear teeth formed on the edge of the conical face having the larger circumference.
7. An apparatus according to any of claims 4 to 6, characterised in that the means for applying pressure in a direction (Y) perpendicular to the plane of the plies comprises a bottom roller having a cylindrical roll surface for contacting the bottom surface of the plies, the axis of rotation of the bottom roller being parallel to the plane of the plies and perpendicular to the ply edges, the bottom roller disposed so as to press the plies against the two conical faced rollers.
8. An apparatus according to any of claims 4 to 6, characterised in that the means for applying pressure in a perpendicular direction (Y) to the plane of the plies comprises a pair of oppositely rotatable rollers each having a conical roll-face for contacting the bottom surface of the respective plies, the rollers being disposed such that their conical faces meet to form in a straight line a continuous surface parallel to the ply surfaces and perpendicular to the direction of the edges.
9. An apparatus for joining two sheets or plies (P1,P2) of uncured rubbery material substantially as described herein and shown in Figures 1 to 7.
GB9620977A 1996-10-08 1996-10-08 Method and apparatus for joining rubbery fabric Withdrawn GB2318082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9620977A GB2318082A (en) 1996-10-08 1996-10-08 Method and apparatus for joining rubbery fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9620977A GB2318082A (en) 1996-10-08 1996-10-08 Method and apparatus for joining rubbery fabric

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Publication Number Publication Date
GB9620977D0 GB9620977D0 (en) 1996-11-27
GB2318082A true GB2318082A (en) 1998-04-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136173A1 (en) * 1998-12-25 2001-09-26 Kiyokazu Kobayashi Method of joining steel products, method of processing junction surfaces of steel products, and reinforcing member
WO2012153055A1 (en) * 2011-05-10 2012-11-15 Compagnie Generale Des Etablissements Michelin Method for producing a tyre carcass ply
CN102869495A (en) * 2010-12-06 2013-01-09 Vmi荷兰公司 Stitcher and method for stitching together strips of rubber material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1376400A (en) * 1971-09-09 1974-12-04 Continental Gummi Werke Ag Apparatus for joining together the ends of plastics or plastically- resilient webs
US3909341A (en) * 1973-12-12 1975-09-30 Owens Corning Fiberglass Corp Splicing tool
US4231836A (en) * 1979-02-02 1980-11-04 Gislaved Ab System for automatic joining and rolling up of cord strips
US4478672A (en) * 1981-07-15 1984-10-23 The Firestone Tire & Rubber Company Device for joining plies for tires
EP0248412A2 (en) * 1986-06-05 1987-12-09 PIRELLI COORDINAMENTO PNEUMATICI Società per Azioni Method and apparatus for the butt-end joining of lengths of rubberized fabric
US5221409A (en) * 1992-01-06 1993-06-22 The Goodyear Tire & Rubber Company Apparatus for butt splicing ply stock

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1376400A (en) * 1971-09-09 1974-12-04 Continental Gummi Werke Ag Apparatus for joining together the ends of plastics or plastically- resilient webs
US3909341A (en) * 1973-12-12 1975-09-30 Owens Corning Fiberglass Corp Splicing tool
US4231836A (en) * 1979-02-02 1980-11-04 Gislaved Ab System for automatic joining and rolling up of cord strips
US4478672A (en) * 1981-07-15 1984-10-23 The Firestone Tire & Rubber Company Device for joining plies for tires
EP0248412A2 (en) * 1986-06-05 1987-12-09 PIRELLI COORDINAMENTO PNEUMATICI Società per Azioni Method and apparatus for the butt-end joining of lengths of rubberized fabric
US5221409A (en) * 1992-01-06 1993-06-22 The Goodyear Tire & Rubber Company Apparatus for butt splicing ply stock

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136173A1 (en) * 1998-12-25 2001-09-26 Kiyokazu Kobayashi Method of joining steel products, method of processing junction surfaces of steel products, and reinforcing member
EP1136173A4 (en) * 1998-12-25 2006-04-26 Corporation Takashima Method of joining steel products, method of processing junction surfaces of steel products, and reinforcing member
CN102869495A (en) * 2010-12-06 2013-01-09 Vmi荷兰公司 Stitcher and method for stitching together strips of rubber material
WO2012153055A1 (en) * 2011-05-10 2012-11-15 Compagnie Generale Des Etablissements Michelin Method for producing a tyre carcass ply
FR2975039A1 (en) * 2011-05-10 2012-11-16 Michelin Soc Tech METHOD FOR MAKING A PNEUMATIC CARCASS TABLE
US9724887B2 (en) 2011-05-10 2017-08-08 Compagnie Generale Des Etablissements Michelin Method for producing a tire carcass ply

Also Published As

Publication number Publication date
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