GB1345455A - Welding devices - Google Patents
Welding devicesInfo
- Publication number
- GB1345455A GB1345455A GB1287172A GB1287172A GB1345455A GB 1345455 A GB1345455 A GB 1345455A GB 1287172 A GB1287172 A GB 1287172A GB 1287172 A GB1287172 A GB 1287172A GB 1345455 A GB1345455 A GB 1345455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- jaw
- jaws
- levers
- welding
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
- B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
- B65B51/306—Counter-rotating devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
1345455 Seaming non-metallic sheet material FR HESSER MASCHINENFABRIK AG 20 March 1972 [19 March 1971] 12871/72 Heading B5K A device for transversely welding tubular thermoplastic or thermoplastic coated packaging material 22 to seal objects 25 therein, comprises two welding jaws 1, 2 biased relatively towards one another and a pressure limiter 12 between the jaw 2 and its support 10 for automatically limiting the maximum pressure applicable by the jaws independently of the separation of the jaws. As shown, the jaw 1 is attached to two parallel rods 3 movable parallel to themselves in a somewhat elliptical orbit 4. The jaw 2 is attached to a carrier 5 having at its ends sleeves 6 slidable on rods 9 attached to rods 10 parallel to the rods 3 and similarly movable in an orbit 11. Two toggle mechanisms 12 each comprise levers 13 pivoted to the carrier 5 and levers 14 pivoted thereto by bolts 15 and to a yoke 16. The distance between the yokes 16 and the rods 10 is adjustable by nuts 17 on the rods 9. Tension springs 19 act between lugs 18 on the levers 14 to urge the bolts 15 towards each other so that the jaw 2 is urged towards the jaw 1. Stop washers 20 between the carrier 5 and the rods 10 limit this movement. Stop pins 21 on the yokes 16 prevent self-locking of the toggles 12 in their dead-centre positions. A cutter 24 is provided to cut the material 22 in the centre of the welding zone 23 simultaneously with welding. If, in use, an object 25 is located in the orbit of the jaws 1, 2, the jaws will clamp the object 25 therebetween and the levers 13, 14 will pivot out against the force of the springs 19. As the bolts 15 move outwardly the clamping force exerted on the object 25 decreases. In alternative embodiments (not shown), the springs 19 are replaced by pneumatic cylinders or magnets which may be controlled by a sensor or feeler to detect the presence of an object. If the material 22 is transparent and the objects 25 opaque a photo-electric cell may be provided as detector.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712113270 DE2113270C3 (en) | 1971-03-19 | 1971-03-19 | Cross welding device in particular for a wrapping machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1345455A true GB1345455A (en) | 1974-01-30 |
Family
ID=5802050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1287172A Expired GB1345455A (en) | 1971-03-19 | 1972-03-20 | Welding devices |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH531440A (en) |
DE (1) | DE2113270C3 (en) |
GB (1) | GB1345455A (en) |
IT (1) | IT947484B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103086020A (en) * | 2013-02-26 | 2013-05-08 | 江阴市汇通包装机械有限公司 | Square bag padding device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1028456B (en) * | 1975-01-17 | 1979-01-30 | Sitund Holdings S A | WELDING AND CUTTING DEVICE FOR PACKAGING MACHINES |
DE4005078A1 (en) * | 1990-02-17 | 1991-08-29 | Rovema Gmbh | DEVICE FOR PRODUCING, FILLING AND SEALING BAGS FROM A HEAT-SEALABLE TAPE |
DE4230435A1 (en) * | 1992-09-11 | 1994-03-17 | Kallfass Gmbh | Device locking mechanism, in particular for foil welding devices |
CN109623948B (en) * | 2018-12-18 | 2020-05-22 | 温州职业技术学院 | Automatic hot-cutting equipment for decorative strips of shoes |
-
1971
- 1971-03-19 DE DE19712113270 patent/DE2113270C3/en not_active Expired
-
1972
- 1972-02-09 CH CH184772A patent/CH531440A/en not_active IP Right Cessation
- 1972-02-10 IT IT2044572A patent/IT947484B/en active
- 1972-03-20 GB GB1287172A patent/GB1345455A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103086020A (en) * | 2013-02-26 | 2013-05-08 | 江阴市汇通包装机械有限公司 | Square bag padding device |
Also Published As
Publication number | Publication date |
---|---|
IT947484B (en) | 1973-05-21 |
DE2113270B2 (en) | 1977-05-26 |
DE2113270A1 (en) | 1972-10-26 |
CH531440A (en) | 1972-12-15 |
DE2113270C3 (en) | 1978-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |