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GB1048491A - Improvements in or relating to thermo welding of plastics materials - Google Patents

Improvements in or relating to thermo welding of plastics materials

Info

Publication number
GB1048491A
GB1048491A GB32786/61A GB3278661A GB1048491A GB 1048491 A GB1048491 A GB 1048491A GB 32786/61 A GB32786/61 A GB 32786/61A GB 3278661 A GB3278661 A GB 3278661A GB 1048491 A GB1048491 A GB 1048491A
Authority
GB
United Kingdom
Prior art keywords
jaws
jaw
casing
welding
armature
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.)
Expired
Application number
GB32786/61A
Inventor
Horace Leslie James
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.)
AUTOPRUFE Ltd
Original Assignee
AUTOPRUFE 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 AUTOPRUFE Ltd filed Critical AUTOPRUFE Ltd
Priority to GB28919/65A priority Critical patent/GB1048492A/en
Priority to GB32786/61A priority patent/GB1048491A/en
Priority to BE663609A priority patent/BE663609A/xx
Priority to FR16029A priority patent/FR1441791A/en
Publication of GB1048491A publication Critical patent/GB1048491A/en
Expired legal-status Critical Current

Links

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
    • B29C66/112—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
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • 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
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • 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
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/944—Measuring or controlling the joining process by measuring or controlling the time by controlling or regulating the time
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Landscapes

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

Abstract

1,048,491. Closing filled packages; preserving contents of packages. AUTOPRUFE Ltd. Dec. 13, 1962 [Sept. 13, 1961], No.32780/61. Heading B8C. [Also in Division B5] Apparatus for thermo welding plastics materials comprises two jaws 16, 19 the jaw 16 being movable towards and away from the jaw 19, a jaw moving member 15 operable to close the jaws by means of an electromagnetic device, and means for controlling the supply of welding current to the jaws in accordance with the position of the latter so that such current is supplied only when the jaws 16, 19 are closed. The member 15 extends through a slot 14 in an outer-casing 10 to which a plate 16 having an edge 18 forming the gripping edge of the movable jaw is attached. The jaw 19 comprises a plate secured to the base 11 of the casing 10. The apparatus includes an inner casing 21 secured to the casing 10 and having a slot 24 registering with the slot 14. The member 15 is of channel shape cross-section over a major part of its length and a spindle 26 extends through an aperture in each of its side flanges 25. The spindle 26 is mounted in the casing 21 by ball bearing assemblies 27 (Fig. 3, not shown). A leaf spring 30 bears on the inside of the channel formed by the member 15 and against a boss 31 on the casing 21 and tends to open the jaws 16, 19. The member 15 is attached to the armature 34 of a solenoid 35 by two leaf springs 36 fitted in diametrical slots in the ends of a pin 41 mounted on the armature 34. Movement of the armature 34 upwardly causes movement of the member 15 about the pivot 26 to close the jaws 16, 19. This movement also causes a pin 43 on the member 15 to move the operating member 42 of a microswitch 38 to supply high frequency current to the jaws 16, 19. Alternatively, both the solenoid circuit and the circuit for the jaws may be controlled by the switch 38. In a modification, not shown, two micro-switches are pro vided and the circuits are connected to the member 15 and the fixed jaw 19, each jaw being heated to the welding temperature by the current supplied thereto. An automatic control circuit including a time delay mechanism may be incorporated in the apparatus whereby the circuits may be energized in timed relation. The apparatus may be arranged to operate intermittently in timed relation to apparatus for feeding containers between the jaws and removing them after welding. The apparatus is similar to that described in Specification 1,048,492.
GB32786/61A 1961-09-13 1961-09-13 Improvements in or relating to thermo welding of plastics materials Expired GB1048491A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB28919/65A GB1048492A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo-welding of plastics materials
GB32786/61A GB1048491A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo welding of plastics materials
BE663609A BE663609A (en) 1961-09-13 1965-05-07
FR16029A FR1441791A (en) 1961-09-13 1965-05-08 Improvements in processes and devices for thermo-welding of plastics

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB28919/65A GB1048492A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo-welding of plastics materials
GB32786/61A GB1048491A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo welding of plastics materials

Publications (1)

Publication Number Publication Date
GB1048491A true GB1048491A (en) 1966-11-16

Family

ID=26259641

Family Applications (2)

Application Number Title Priority Date Filing Date
GB28919/65A Expired GB1048492A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo-welding of plastics materials
GB32786/61A Expired GB1048491A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo welding of plastics materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB28919/65A Expired GB1048492A (en) 1961-09-13 1961-09-13 Improvements in or relating to thermo-welding of plastics materials

Country Status (1)

Country Link
GB (2) GB1048492A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405800A1 (en) * 1977-10-11 1979-05-11 Eng & Res Ass DESK-MOUNTED THERMOS-WELDING UNIT
US6828536B1 (en) 2002-04-13 2004-12-07 Stanelco Rf Technologies Limited Welding apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272303A (en) * 1991-04-02 1993-12-21 Kawasumi Laboratories, Inc. Welding device with movable and immovable electrodes for welding tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405800A1 (en) * 1977-10-11 1979-05-11 Eng & Res Ass DESK-MOUNTED THERMOS-WELDING UNIT
US6828536B1 (en) 2002-04-13 2004-12-07 Stanelco Rf Technologies Limited Welding apparatus

Also Published As

Publication number Publication date
GB1048492A (en) 1966-11-16

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