GB976281A - Apparatus and method for creasing and bending synthetic plastic sheet stock - Google Patents
Apparatus and method for creasing and bending synthetic plastic sheet stockInfo
- Publication number
- GB976281A GB976281A GB39765/63A GB3976563A GB976281A GB 976281 A GB976281 A GB 976281A GB 39765/63 A GB39765/63 A GB 39765/63A GB 3976563 A GB3976563 A GB 3976563A GB 976281 A GB976281 A GB 976281A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discs
- disc
- edge
- strip
- blade
- 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
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
- B29C53/043—Bending or folding of plates or sheets using rolls or endless belts
-
- 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
- B31B50/26—Folding sheets, blanks or webs
- B31B50/36—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
976,281. Creasing &c. plastic sheets. C. E. PALMER. Oct. 9, 1963 [Oct. 11, 1962], No. 39765/63. Heading B6J. Apparatus for creasing and bending plastic sheet stock comprises a pair of rotary discs, one having a blade edge on its periphery and the other a periphery of resilient rubber-like material. The discs are both driven in opposite directions so that their peripheries travel at the same speed, and the plastic sheets are creased and folded by being pressed by the blade edge of one disc into the resilient surface of the other disc. Fig. 4 shows apparatus for forming a rectangular tubular member from a flat plastic strip 34, there being four discs 38a, 38b, 38c, 38d with resilient peripheries, and four co-operating blade-edge discs 40a, 40b, 40c, 40d. The shafts of all the discs are power driven from drive shafts and gearing as shown, the blade discs being mounted in an elongated mandrel 42 so that their edges protrude. The plastic strip 34, as it approaches the mandrel 42, is supported by guiding rollers, and is first engaged by the discs 38a, 38b and 40a, 40b, and later by the discs 38c, 38d and 40c, 40d, further guide rollers and deflecting rollers being arranged immediately before these latter discs to shape and support the strip. The strip is now formed into rectangular tubular shape with the free ends overlapping. Triangular and other shapes may be formed by suitable mandrels, guide &c. rollers, and discs. The blade-edge disc may have an integral V-shaped edge, or an undercut edge which is shaped on one face to assist the folding of the creased plastic strip, or the edge may be a separate member secured to the disc and of frusto-conical form, and secured at an acute angle to the plane of the disc in a circumferential recess in the disc. The co-operating disc has a resilient, rubber-like material such as sponge rubber, or a synthetic organic polymer such as polyurethane, secured to its periphery, and has a rectangular , V, or other shape to suit the particular creasing &c. operation and the shape of the co-operating blade edge. The strip 34 may be biaxially oriented polystrene of five to thirteen mils. thickness, and is overfolded about twenty to forty degrees to achieve the desired shape when it leaves the discs. The creased and folded strips are further processed to produce tubular or tray-shaped containers. Specifications 906,075, 937,733, and U.S.A. Specification 2,954,725 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US229937A US3202066A (en) | 1962-10-11 | 1962-10-11 | Apparatus and method for folding synthetic plastic sheet stock |
Publications (1)
Publication Number | Publication Date |
---|---|
GB976281A true GB976281A (en) | 1964-11-25 |
Family
ID=22863292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39765/63A Expired GB976281A (en) | 1962-10-11 | 1963-10-09 | Apparatus and method for creasing and bending synthetic plastic sheet stock |
Country Status (2)
Country | Link |
---|---|
US (1) | US3202066A (en) |
GB (1) | GB976281A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0476870A1 (en) * | 1990-09-19 | 1992-03-25 | Philip Morris Products Inc. | Apparatus for forming innerframe for cigarette pack with rounded corners |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3314339A (en) * | 1964-05-04 | 1967-04-18 | Inland Container Corp | Scoring device |
NL6507773A (en) * | 1964-09-02 | 1965-09-27 | ||
US3383989A (en) * | 1966-02-17 | 1968-05-21 | Paul H. Brandt | Air conditioning duct folding machine |
US3495504A (en) * | 1966-02-28 | 1970-02-17 | Francis J Sloan | Method of producing plastic sheet packages |
US3537234A (en) * | 1967-11-07 | 1970-11-03 | Continental Can Co | Container cap construction |
JPS5115472B1 (en) * | 1970-01-14 | 1976-05-17 | ||
AT352518B (en) * | 1974-05-20 | 1979-09-25 | Saul Franz J | METHOD OF MANUFACTURING A REEL REEL |
US3961783A (en) * | 1975-03-12 | 1976-06-08 | Pratt Manufacturing Corporation | Endless belt folder |
AT368447B (en) * | 1975-03-25 | 1982-10-11 | Saul Franz J | METHOD AND DEVICE FOR PRODUCING A PARTICULARLY FOLDABLE COLLAPSE WITH A POLYGONAL CROSS-SECTION |
JPS51148586A (en) * | 1975-06-13 | 1976-12-20 | Nikkei Kk | Forming method and apparatus for paper container blank |
US5540645A (en) * | 1981-12-10 | 1996-07-30 | Dupuy; Francois | Display boxes |
US4650530A (en) * | 1986-03-10 | 1987-03-17 | Kimberly-Clark Corporation | Apparatus and method for folding, bonding and severing a web |
US6808479B2 (en) | 2001-10-05 | 2004-10-26 | Hewlett-Packard Development Company, L.P. | Thick media folding method |
US6939284B2 (en) * | 2001-10-05 | 2005-09-06 | Hewlett-Packard Development Company, L.P. | Sheet folding apparatus with rounded fold blade |
US6673002B2 (en) | 2001-10-05 | 2004-01-06 | Hewlett-Packard Development Company, L.P. | Sheet folding apparatus with pivot arm fold rollers |
US6855101B2 (en) * | 2001-10-05 | 2005-02-15 | Hewlett-Packard Development Company, L.P. | Sheet folding apparatus |
US6878104B2 (en) | 2001-10-05 | 2005-04-12 | Hewlett-Packard Development Company, L.P. | Variable media thickness folding method |
US6837841B2 (en) | 2002-09-30 | 2005-01-04 | Hewlett-Packard Development Company, L.P. | Method and apparatus for sheet folding |
DE102004011621A1 (en) * | 2004-03-10 | 2005-09-29 | Heidelberger Druckmaschinen Ag | Creasing element for rotatively grooving objects |
US8683919B2 (en) * | 2011-09-15 | 2014-04-01 | Illinois Tool Works Inc. | Modular strap feed head with forming wheels |
AT13919U1 (en) * | 2013-10-07 | 2014-12-15 | Walfred Prossegger | Device for producing a factory prefabricated Wandhochzuges |
DE102021102764A1 (en) * | 2020-02-19 | 2021-08-19 | Daido Kogyo Co., Ltd. | PROFILE ROLLING DEVICE AND METHOD FOR MANUFACTURING A FIBER REINFORCED PLASTIC ROLLED PROFILE PART |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2061286A (en) * | 1935-01-26 | 1936-11-17 | Millett Corp | Artificial reed making machine |
US2440113A (en) * | 1946-08-12 | 1948-04-20 | Louis J Noecker | Machine for turning and binding the edges of leather |
US2661947A (en) * | 1950-06-01 | 1953-12-08 | Johnson & Johnson | Folding and creasing device |
US2954725A (en) * | 1958-06-11 | 1960-10-04 | Charles E Palmer | Method and apparatus for folding plastic sheet stock |
-
1962
- 1962-10-11 US US229937A patent/US3202066A/en not_active Expired - Lifetime
-
1963
- 1963-10-09 GB GB39765/63A patent/GB976281A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0476870A1 (en) * | 1990-09-19 | 1992-03-25 | Philip Morris Products Inc. | Apparatus for forming innerframe for cigarette pack with rounded corners |
Also Published As
Publication number | Publication date |
---|---|
US3202066A (en) | 1965-08-24 |
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