GB1498660A - Corrugating apparatus - Google Patents
Corrugating apparatusInfo
- Publication number
- GB1498660A GB1498660A GB45670/75A GB4567075A GB1498660A GB 1498660 A GB1498660 A GB 1498660A GB 45670/75 A GB45670/75 A GB 45670/75A GB 4567075 A GB4567075 A GB 4567075A GB 1498660 A GB1498660 A GB 1498660A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- mould halves
- chain
- die head
- chains
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
- B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/275—Recovery or reuse of energy or materials
- B29C48/276—Recovery or reuse of energy or materials of energy
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/003—Tubular articles having irregular or rough surfaces
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1498660 Corrugating extruded tube G P H LUPKE 3 Nov 1975 45670/75 Heading B5A [Also in Division F2] A thermoplastics tube 41, Fig. 4, having annular corrugations, is continuously made by extruding an annular tube from an orifice defined between the die and mandrel of a die head 29 and delivering separate supplies of inflating and cooling air through the die head 29 to respectively sequentially inflate the tube 41 into, and cool it internally within a corrugating cavity defined, along a path extending axially of the die head 29, by the co-operation of mould halves 16 of an opposed pair of continuously moving upper and lower endless chains 14, 15, of the mould halves. An extension tube from the (die 29) mandrel carries seals 42 to define with the tube 41 an upstream space 43 into which the inflating air is admitted through the mandrel, and also carries a seal 44 which defines with the tube 41 and the seals 42, a downstream space 45 into which the cooling air is admitted, at openings 50 of the extension tube, to flow around heat exchanger coils 51 which are carried by the extension tube and through which cooling fluid is circulated from the die head 29 by passages 52, 53 through the extension tube. The extension tube is supported at its downstream end by an enlargement 40 bearing against the corrugated surface of the tube 41. The die orifice from which the thermoplastic tube is extruded may be a conical passage defined between inner and outer members, Fig. 6 (not shown), screw threaded on to the die head 29 for relative axial adjustment to vary the thickness of the extruded tube. The endless chains 14, 15, are mounted on a wheeled carriage which is displaceable along tracks into the moulding position with the extrusion die head 29, and is provided with mechanical jacks for upward displacement of the upper chain 14 for cleaning purposes. Each chain, Fig. 10, comprises a pair of spaced apart chains extending around driving sprockets, and along guide rails, and between which the mould halves are each articulated at leading and trailing pivots 34, 35, and 36, 37, with the leading pivot 34 of the upper chain and the trailing pivot 37 of the lower chain having vertical lost motion, so that the halves separate at the end of the moulding path in parallel alignment to avoid pinching of the moulded tube. The corrugating surfaces of the mould halves of each chain are cooled by air delivered from blowers, via a distributing duct extending along the return run of each chain, and are also each cooled by passage around a tank through which cooling water is circulated, and which may be provided with an electrical immersion heater for heating to the required water temperature at the commencement of extrusion. The mould halves 16, Fig. 8, are provided along their abutting horizontal surfaces with grooves 33 for the escape of air trapped between the extruded tube and mould halves. Alignment between the upper and lower mould halves along the moulding path is ensured by a pair of pins 30 on the lower mould halves engaging corresponding sockets on the upper mould halves, and alignment between adjacent mould halves in each chain may be ensured by pins 31 and sockets at opposite ends of the mould halves, with the pins 31 being loaded by springs to a retracted position to permit disengagement of the mould halves at the end of the moulding path, and being displaced to a socket engaging position by cams which engage the guide rails. Adjacent moulds of each train abut at a location corresponding to an external valley of the corrugations at which the tube wall, inflated from a uniform thickness tube, will be thicker and thereby minimize any misalignment effect between the mould halves. The mould chains are driven by chain and sprocket drives and, to ensure alignment between the chains, they are coupled together by a pair of spur gears, which are respectively fixedly and angularly adjustably coupled to the drive shafts of the upper and lower mould chains. For its adjustable coupling, the lower spur gear 69, Figs. 11 and 12, is carried by a plate 80 which is adjustably coupled to a plate 70 fixed to the drive shaft of the lower train, the adjustable coupling comprising a threaded block 74 mounted to the plate 80 and threadedly engaged for the adjustment by a rotatable shaft 71 extending between bearings 72, 73, carried by the plate 70. The adjusted position of spur gear 69 is locked by a device 81.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB45670/75A GB1498660A (en) | 1973-09-10 | 1975-11-03 | Corrugating apparatus |
CH1540875A CH594492A5 (en) | 1973-09-10 | 1975-11-27 | High speed plastics tube corrugator |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39610073A | 1973-09-10 | 1973-09-10 | |
US05/512,231 US3981663A (en) | 1973-09-10 | 1974-10-07 | Apparatus for making high speed corrugated plastic tubing |
GB45670/75A GB1498660A (en) | 1973-09-10 | 1975-11-03 | Corrugating apparatus |
CH1540875A CH594492A5 (en) | 1973-09-10 | 1975-11-27 | High speed plastics tube corrugator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1498660A true GB1498660A (en) | 1978-01-25 |
Family
ID=27429608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB45670/75A Expired GB1498660A (en) | 1973-09-10 | 1975-11-03 | Corrugating apparatus |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH594492A5 (en) |
GB (1) | GB1498660A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2777644A1 (en) * | 1998-04-21 | 1999-10-22 | Valeo Thermique Moteur Sa | Heat exchanger in particular for vehicles with interlocking flat thermoplastic tubes |
CN117400466A (en) * | 2023-12-15 | 2024-01-16 | 邢台科亚特橡塑制品有限公司 | Improved energy-saving efficient preparation device and method for rubber floor |
-
1975
- 1975-11-03 GB GB45670/75A patent/GB1498660A/en not_active Expired
- 1975-11-27 CH CH1540875A patent/CH594492A5/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2777644A1 (en) * | 1998-04-21 | 1999-10-22 | Valeo Thermique Moteur Sa | Heat exchanger in particular for vehicles with interlocking flat thermoplastic tubes |
CN117400466A (en) * | 2023-12-15 | 2024-01-16 | 邢台科亚特橡塑制品有限公司 | Improved energy-saving efficient preparation device and method for rubber floor |
CN117400466B (en) * | 2023-12-15 | 2024-04-09 | 邢台科亚特橡塑制品有限公司 | Rubber floor preparation device and method |
Also Published As
Publication number | Publication date |
---|---|
CH594492A5 (en) | 1978-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |