US3772947A - Heat applicator apparatus and method for fastener tapes - Google Patents

Heat applicator apparatus and method for fastener tapes Download PDF

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Publication number
US3772947A
US3772947A US3772947DA US3772947A US 3772947 A US3772947 A US 3772947A US 3772947D A US3772947D A US 3772947DA US 3772947 A US3772947 A US 3772947A
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Prior art keywords
tape
cutting
segment
plate
feed direction
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English (en)
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R Foskett
D Russell
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American Velcro Inc
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American Velcro Inc
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    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/005—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore cutting-off or cutting-out a part of a strip-like or sheet-like material, transferring that part and fixing it to an article
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H37/00—Machines, appliances or methods for setting fastener-elements on garments
    • 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • 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
    • 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
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one 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
    • B29C66/01—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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • 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
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8742—Safety measures or devices for operators
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • B29L2031/729—Hook and loop-type fasteners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y10T83/0419—By distorting within elastic limit
    • Y10T83/0424—By stretching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2098—With means to effect subsequent conveying or guiding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2183—Product mover including gripper means
    • Y10T83/2185—Suction gripper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/323—With means to stretch work temporarily
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/447—Plural tools successively actuated at same station
    • Y10T83/4473—During one dwell period
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/463—Work-feed element contacts and moves with work
    • Y10T83/4632—Comprises a work-moving gripper

Definitions

  • ABSTRACT A method and apparatus for applying relatively small increments of hook and loop fastener tape to various web materials including means for feeding and cutting said increments from a tape source and vacuum means for transferring and holding said increments prior to heat bonding of said increments to said web material.
  • an apparatus and method for feeding increments of tape fastener to a cutting means while maintaining said increments in a flattened condition to avoid buckling or crimping.
  • the cutting means includes a positive tape hold-down device in conjunction therewith and means for sequentially notching the corners of tape and for transverse cut-off of tape segments.
  • a vacuum transfer device passes each tape segment to an applicator head which holds the segment by vacuum pressure prior to applying same to a web for adhesively heat bonding the segment thereto.
  • Means are further provided for locating each segment on the web prior to application of a segment.
  • FIG. 1 is a front elevation of the heat applicator apparatus of the invention with parts broken away;
  • FIG. 2 is a right side elevation of the apparatus of FIG. 1;
  • FIG. 3 is a left side elevation of the apparatus of FIG. 1 withparts broken away;
  • FIG. 4 is a vertical section taken along the lines of 4--4 of FIG. 5;
  • FIG. 5 is a vertical section taken along the lines of 5-5 of FIG. 4;
  • FIG. 6 is a vertical section taken along the lines of 66 of FIG. 2;
  • FIG. 7 is a horizontal section taken along the lines of 7-7 of FIG. 4;
  • FIG. 8 is a horizontal section taken along the lines of 8-8 of FIG. 4;
  • FIG. 9 is a horizontal section taken along the lines of 9-9 of FIG. 2;
  • FIG. 10 is a partial plan view showing a section of tape applied to a web material.
  • the apparatus 10 comprises generally, transport section 11, cutting section 12 tape segment transfer section 13 and heat and applicator section 14.
  • the apparatus 10 includes a base 16 to which is secured right and left side plates 17, 18.
  • the sections 11-13 are each secured to the right side plate 17 while portions of the heat and applicator section 14 are secured to the side plate 17 and to the base 16.
  • a hook and loop fastener tape 19 (in the embodiment a hook fastener tape'is shown), is supplied from a spool 20 mounted for rotation upon side plate 17. Spool 20 is conventionally braked to regulate tension in tape 19. Tape 19 is fed around fixed guide roll 21 mounted to plate 17 and will be fed in the direction of the arrows.
  • a section of tape 19 is held within transport section 11.
  • the transport section 11 includes a feed slide 22, the upper portion of which extends through side plate 17.
  • the portion extending to the left (FIG. 6) of plate 17 is secured to guide rods 23 and 24 and is further attached to an actuating rod 26.
  • Fixed plates 27 and 28 are attached to side plate 17 and rigidly secured to guide rods 23, 24.
  • Plate 27 further mounts an actuating cylinder 29 whose piston is attached to actuating rod 26.
  • a rectangular opening 30 is provided in plate 17 to permit reciprocation of feed slide 22 therein.
  • a feed shoe 33 is attached to the lower end of feed slide 22 by means of bolts 31 and a fastening plate 32.
  • Tape 19 is held in a generally flattened condition within shoe 33 which has oppposing U-shaped sides 34, 35.
  • the forward end of shoe 33 is bifurcated, thus defining a central slot 36.
  • the shoe 33 further defines a rectangular opening 37 which will admit the lower end38 of plunger 39.
  • Plunger 39 is attached to a piston (not shown) within air cylinder 49.
  • Cylinder 40 is held by arms 41, 42 which are connected to feed slide 22'.
  • plunger 39 Upon actuation of cylinder 40, plunger 39 will press end 38 against the hook fastener tape 19 to secure same against shoe 33.
  • feed slide 22 Upon further actuation of cylinder 29 feed slide 22 will carry shoe 33 together with tape 19 toward and into the cutting section 12, the details of which will now be described.
  • cutting section 12 includes a feed clamp finger 45 whose lower end 46 is serrated as shown so as not to crush the hooks extending upwardly from the hook tape 19.
  • the lower end 46 of finger 45 is permitted to engage the hook tape 19 through slot 36 in feed shoe 33 when the latter has been moved into the cutting section 12.
  • Finger 45 is pivotly attached to a crank 47 which is rotatably supported intermediate its length by means of a bracket 48 attached to plate 17.
  • Acutation cylinder 49 is connected by rod 50 to clevis 51 and to the crank 47. Accordingly, reciprocation of rod 50 will cause finger 45 to be raised or lowered.
  • Section 12 further includes an actuation cylinder 52 whose actuation rod 53 is connected to a yoke 54.
  • Yoke 54 has at one side a depending leg 54a which mounts two guide rollers 56.
  • Yoke 54 has a further depending part 54b whose function will be described.
  • the opposite side of yoke 54 is connected to two additional rollers 57 by a roller mounting plate 58.
  • Plate 58 is secured to the yoke by bolts 59 and an adjusting screw 60. Consequently, the plate 58 and thus rollers 57 can be moved toward or away from the yoke 54.
  • opposing spring plates 61, 62 which are adjustable toward or away from the yoke 54 by means of screws 63, 64.
  • Plates 61 and 62 have at their lower ends retaining members 66, 67 which engage in slots 68a, 69a within notching dies 68, 69.
  • dies 68, 69 are prevented from moving laterally in the direction of plates 61, 62 and will move upwardly or downwardly with the yoke 54.
  • Notching dies 68, 69 are relieved at sections 68b, 69b thereof to permit passage of shoe 33 into the cutting section 12, and have upwardly inclined shear surfaces 68c, 69c.
  • Rollers 56 and 57 ride upon the exterior of a fixed die 70 and a movable die 71.
  • the restraining lateral force exerted by rollers 56 and 57 and by plates 61, 62 cause the respective die elements 68, 69 and 70 to be accurately positioned against stationary die element 71 and with respect to each other.
  • a plate 72 is attached to the lower end of movable die 71 and has extending arms 73. Arms 73 are connected to tension spring elements 74 which extend between plate 72 and yoke 54 to which they are connected at 75. The tension spring elements 74 thus exert a lifting or upward and inward force upon the movable die element 71.
  • the fixed die element 70 has a slot 70a therein which receives the finger 45 for vertical movement thereof.
  • a finger guide pin 77 is held by movable die element 71 and extends through a slot 45a in the finger 45 and into a slot 70b within fixed die 70.
  • Section 80 includes a main conduit member 81 which is fixed to the plate 17 by means of screws 83 and is attached to a vacuum pipe 82. Attached to conduit member 81 is an L-shaped pipe 82 which extends through an opening in plate 72 and is connected to a source of vacuum. Conduit member 81 defines a passage 81a which connects with one leg of pipe 82 and which further communicates with a passage 8lb. Conduit member 81 and passage 81b are completed and enclosed by a lower plate 84. Passage 81b interconnects with two openings 85 and 86 (see FIG. which are open at the top in the direction of the die section 12.
  • Side plates 86 further are connected to conduit member 81 and extend upwardly therefrom partially to enclose the space between conduit member 81 and the lower portion of die section 12. Openings 85 and 86 are directly below the notch cutting dies 68 and 69 to receive waste material as a result of the notching operation of these dies which will be removed by suction through passages 81b, 81a and pipe 82.
  • An actuation cylinder 88 is secured to the rear side of plate 17 by a mounting plate 89.
  • Guide rods 90 extend from plate 89 to a second mounting plate 91 which is also attached to plate 17.
  • Rods 90 guide the reciprocating movement of a transfer member 92, the rear portion of which can be seen in FIG. 3 connected to a pipe 93 attached to a vacuum source.
  • Transfer member 92 extends through a rectangular opening 94 in plate 17 and is sealed at its lower end by a plate 96 attached thereto by bolts 97.
  • Transfer member 92 is reciprocated in opening 94 by means of rod 98 connected to actuation cylinder 88.
  • the transfer member 92 has an upper perforated plate 99 which extends in the reverse feed direction to a position beneath stationary die member 70. Die member 70 is cut at the angle shown in order to permit the plate 99 and an angular wall section 92a of member 92 to occupy this position.
  • plate 99 is provided with several slots 100 which have interconnecting bores 101. At the rearward edge of plate 92 are a series of openings 103. It will be understood that when a vacuum is drawn through pipe 93, suction will be felt above the plate 99 by through slots and openings 100-103.
  • the heating and applicator section 14 (FIGS. 1, 2 and 4) comprises a plate 104 which is secured within the base 16 by means of bolts 105.
  • Plate 104 mounts a heating element 106 which includes a thermocouple 107 and electrical power lead 108.
  • Theplate 104 defines a series of longitudinal apertures 109 which extend from the upper surface thereof to a chamber 110 beneath the plate in which are mounted a series of bulbs 111. Apertures 109 conduct light upwardly from bulbs 111.
  • Chamber 110 is connected to an adjacent chamber 112 whose exit 113 permits excess heat from heater 106 and bulbs 111 to flow from the chamber.
  • the applicator head 114 is connected to rods 115, 116 which are reciprocally slidable within mounting plates 117, 118 and 119 fastened to plate 17.
  • Air cylinder 120 held by plates 118 and 119 is connected through rod connections 12], 122 and 123 to the upper wall 11421 of head 114 as best seen in FIGS. 4 and 9.
  • the lower end of head 114 is closed by a plate 124 having a series of apertures 124a therein.
  • a plate member 126 is attached to one side of head 114 by means of screw 127, plate 126 being L-shaped in the section shown in FIG. 4 and having side runners 126a, 126b attached by screws 129 to the perforated plate 124. As seen in FIG.
  • a pipe 130 which is connected to a source of vacuum extends through plate 117 to a vertical pipe 131 which leads to a chamber 132 in the head 114.
  • Rod 116 has a tripper 116a at its upper end whose function is to actuate switches 125, 135 controlling the energization of cylinder 120 as will be explained.
  • a multi-cam programmer contains a series of motor driven cams which sequentially open and close valves or switches which directly or indirectly energize or deenergize the various actuating cylinders of the present apparatus.
  • Such device forms no part of the present invention and is conventional for controlling operations of this type.
  • Cylinder 49 when actuated will depress finger 45 to hold the edge of tape 19 immediately forward of movable die 71.
  • Cylinder 52 will be actuated to force yoke 54 downwardly.
  • Yoke 54 first carries notching dies 68 and 69 downwardly causing them simultaneously to notch corners of the tape. Further downward movement of yoke 54 will cause the yoke portion 54b to contact the upper surface of movable die 71 causing the die to move downwardly to cut off the tape transversely forming a segment 19a. During such movement, the lower angled end 71a of the die will contact the forward bifurcated end of shoe 33 causing this member to flex downwardly about its attachment with feed slide 22.
  • spring elements 74 cause return of the die elements 68, 69, 71 to the position of FIG. 4.
  • Raising of finger 45 will release an incremental section of tape to be vacuum held upon the upper face of transfer plate 99.
  • Actuation of cylinder 88 will drive transfer block 92 carrying the incremental segment of tape 19a to a position beneath head 114 at which point the vacuum below plate 99 will be terminated and vacuum in chamber 132 of head 114 will cause the tape segment to pass from plate 99 to adhere to plate 124.
  • Cylinder 120 will drive head 114 downwardly to press the tape segment 19a against web 140. Runners 126a and 126b press the edges of tape segment 19a against the web 140 to assure an intimate bond at the edges. Plate 124 presses downwardly against the remaining upper surface, of segment 19a. Cylinder 120 will cause head 114 to dwell for a pre-determined time of say three seconds while heat is applied from heater 106. Light shining through orifices 109 will show the precise positioning of the segment 19a on the web and enable the operator to accurately locate the area to which the segment 19a is to be applied. For many applications, the vacuum to be maintained in the head 114 will be terminated shortly after head 114 is fully depressed against plate 104.
  • Rod 116 has attached thereto at its upper end a tripper 116a which actuates micro-switches 125 when the head 114 is in the fully upward position. Switch 125 will terminate the pressure to actuating cylinder 120 in the upward direction.
  • a low actuation pressure will initially be admitted to cylinder 120 to drive the head 114 downwardly. For example, if the available actuating pressure is 80 p.s.i., the initial pressure admitted to cylinder 120, will for example be or p.s.i.
  • the present invention provides a unique method and apparatus for applying short segments of tape fastener to web material by a heat-bonding technique.
  • the segments can be changed in length by means of a simple adjustment which will now be described.
  • a knob 150 is attached to hollow rod 151 through plate 155 the rod receiving and being keyed for rotation to screw 152.
  • Screw 152, threaded to mounting plate 28, can thus be shifted toward or away from feed slide 22 in order to limit or vary the length of travel of the slide. It is this length of travel which determines the length of each segment 19a of tape.
  • the tape is prevented from buckling in the feed direction by the shoe and is held in tension by finger 45 when the feed slide 22 returns to its initial feed position.
  • the tape segment can be moved under head 114 by the transfer block 92.
  • the notching dies first notch the corners of the tape while the tape is held by finger 45, plunger 37 and shoe 33. This assures precision cutting of the corners.
  • the movable die 71 is urged downwardly by yoke 54 to cutoff each segment. This combination of sequential die action has been found to be quite superior to a single die cutting operation since it requires less precision in locating the tape prior to cutting and causes much less wear on the die elements.
  • the advantages of the vacuum transfer means in conjunction with vacuum holding means of head 114 are apparent.
  • a method of feeding tapes and cutting incremental segments therefrom comprising the steps of:
  • Patent No.3,772,947 Dated November 20, 1974 Inventor) Roger D. Foskett and David B. Russell It is certified that errorappears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Textile Engineering (AREA)
  • Tyre Moulding (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Treatment Of Fiber Materials (AREA)
US3772947D 1971-04-16 1971-04-16 Heat applicator apparatus and method for fastener tapes Expired - Lifetime US3772947A (en)

Applications Claiming Priority (1)

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US13481671A 1971-04-16 1971-04-16

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US (1) US3772947A (enExample)
CA (1) CA973084A (enExample)
DE (1) DE2216660A1 (enExample)
FR (1) FR2136415A5 (enExample)
GB (1) GB1391184A (enExample)
IT (1) IT958741B (enExample)

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CH667189A5 (de) * 1985-07-17 1988-09-30 Oehler Ag Vorrichtung zum setzen von dekorationselementen.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194098A (en) * 1962-11-08 1965-07-13 Westinghouse Electric Corp Severing apparatus having transfer means operable to engage the leading end of the workpiece before severance
US3512438A (en) * 1967-12-11 1970-05-19 James T Burdge Strip stock feeding system for punch press
US3620114A (en) * 1970-03-09 1971-11-16 Judelshon Inc Oscar I Sheet material cutting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194098A (en) * 1962-11-08 1965-07-13 Westinghouse Electric Corp Severing apparatus having transfer means operable to engage the leading end of the workpiece before severance
US3512438A (en) * 1967-12-11 1970-05-19 James T Burdge Strip stock feeding system for punch press
US3620114A (en) * 1970-03-09 1971-11-16 Judelshon Inc Oscar I Sheet material cutting machine

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GB1391184A (en) 1975-04-16
IT958741B (it) 1973-10-30
DE2216660A1 (de) 1972-10-26
CA973084A (en) 1975-08-19
FR2136415A5 (enExample) 1972-12-22

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