GB1111753A - A method and a device for cutting and hf-welding of thermoplastic sheets - Google Patents
A method and a device for cutting and hf-welding of thermoplastic sheetsInfo
- Publication number
- GB1111753A GB1111753A GB1119/66A GB111966A GB1111753A GB 1111753 A GB1111753 A GB 1111753A GB 1119/66 A GB1119/66 A GB 1119/66A GB 111966 A GB111966 A GB 111966A GB 1111753 A GB1111753 A GB 1111753A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheets
- parts
- cutting
- cutting edge
- portions
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
- B31B50/66—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding by high-frequency electric heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
1,111,753. Seaming non-metallic sheet material; cutting sheet material. O. FRIDLUND. 10 Jan., 1966 [8 Jan., 1965], No. 1119/66. Headings B5A and B5K. Thermoplastic sheets 6, 7 are cut and welded by disposing the sheets 6, 7 between parts 1, 2 of a cutting and welding device, moving the part 2 towards the part 1 to cause a cutting edge 9 on the part 2 to act on the sheets 6, 7, and passing a high-frequency current through electrical conductors of the parts 1, 2, the part 1 comprising a conductor 4 and electrical insulation 3, 5 both so arranged that the action of the high-frequency current occurs over certain portions of the working area of the parts 1, 2 but does not occur over other portions of the working area. The insulating layers 3, 5 of the part 1 comprise thin sheets of a phenolformaldehyde plastic and the conducting layer 4 may be a thin metal sheet or may be formed by a printed-circuit technique. The layer 4 is suitably shaped to the desired weld area and may reach the correct potential either in a capacitive way or by being directly connected to the work-table 1. The tool 2 may be made of copper and comprises welding portions situated just inwardly of the cutting edge 9. In use, the sheets 6, 7 are intermittently advanced and the tool 2 is lowered so that a bag 10, Fig. 2 (not shown), is cut out at 10b and simultaneously welded at 10a. A second cutting edge (not shown) may be provided so as to penetrate only the upper sheet 6 to form a bag having one wall longer than the other. In modifications, the part 2 is fixed and the part 1 is movable or both parts 1, 2 are movable.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42429865A | 1965-01-08 | 1965-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1111753A true GB1111753A (en) | 1968-05-01 |
Family
ID=23682156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1119/66A Expired GB1111753A (en) | 1965-01-08 | 1966-01-10 | A method and a device for cutting and hf-welding of thermoplastic sheets |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1111753A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2288360A (en) * | 1993-04-12 | 1995-10-18 | Takata Corp | Melt-cutting uncoated air bag ground fabric |
-
1966
- 1966-01-10 GB GB1119/66A patent/GB1111753A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2288360A (en) * | 1993-04-12 | 1995-10-18 | Takata Corp | Melt-cutting uncoated air bag ground fabric |
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