GB1185736A - Tubular Casings - Google Patents
Tubular CasingsInfo
- Publication number
- GB1185736A GB1185736A GB32451/67A GB3245167A GB1185736A GB 1185736 A GB1185736 A GB 1185736A GB 32451/67 A GB32451/67 A GB 32451/67A GB 3245167 A GB3245167 A GB 3245167A GB 1185736 A GB1185736 A GB 1185736A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- tubing
- former
- drying
- conveyer
- 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
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0013—Chemical composition of synthetic sausage casings
- A22C13/0016—Chemical composition of synthetic sausage casings based on proteins, e.g. collagen
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0003—Apparatus for making sausage casings, e.g. simultaneously with stuffing artificial casings
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0013—Chemical composition of synthetic sausage casings
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
-
- 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
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Prostheses (AREA)
Abstract
1,185,736. Tubular collagen casings; extruding tubes. UNILEVER Ltd. 10 June, 1968 [14 July, 1967], No. 32451/67. Headings B5A and B5B. An extruder for the preparation of tubular collagen casing comprises inner 4 and outer 1 members defining an annular extrusion nozzle, the inner member 4 having an axial bore 14 of sufficient size to allow passage of a former 15 conforming in external dimensions substantially to the desired dimensions of the casing. A suitable former is an erected flexible tubular body, suitably, a tubular plastics film of e.g. nylon-11 inflated by air or other gas contained in a flexible lining tube within the former; alternatively the former may be erected by means of a flexible, elastic polymer foam. In the preparation of tubular casings from collagen dough, the casing is received on to the former, and extrusion takes place into a bath of setting solution surrounding the nozzle. A preferred collagen dough contains 4% to 7% solids by weight, especially 4À5% to 6%, and a preferred setting bath is saturated brine, the casing being dried to strengthen it after leaving the setting bath, and after drying being washed to remove material taken up in the setting bath and then dried again, the casing finally being removed from the former by shirring. Desirably the casing is subjected to the action of the setting solution on both sides before being received on to the former. As shown, the casing may be formed by a contra-rotating head extruder, suitably of the contra-rotating cone type, a suitable gap between the cones being 0À25 to 0À60 mm., and the cones suitably rotating at 60 to 120 r.p.m., there being a difference of 10 to 15 r.p.m. between the speed of rotation of the cones. Suitably, the former is passed through the nozzle at a rate of 2À5 to 50 cms. sec., but especially at not greater than 25 cms. sec., and the collagen dough is desirably fed to the extrusion nozzle under a pressure of 5À5 to 8À5 kg/sq. cm. Alternative setting solutions include ammonium sulphate solution and methanol/ammonia solution. In a preferred method, a former consisting of inflated tubing, referred to below as a templet is used, suitably in lengths of about 7À5 m; the plant can however be designed to handle the tubing, with the easing on it, continuously until the easing is finished and can be shirred off in convenient lengths. The pressure in the templet tubing when it is used as such over the lining tube, is suitably from 30 to 50 cms. water gauge. The pre-drying and subsequent steps may be done over any convenient period, e.g. a day pre-drying in still air, 5 or 10 minutes washing with water sprays to remove most of the salt still in the easing when a brine setting bath is used, and drying for a further day. If forced-draught drying is used air at 40 to 50 C. is satisfactory and 20 mins. or less for each drying stage may be adequate. After the second drying if necessary the easing is conditioned under controlled relative humidity at ambient temperature, and then shirred. In the extruder of Fig. 1, the setting solution is fed partly by the action of moving templet tubing and partly by a low hydrostatic head, through a U-tube 18, and setting solution is pumped also to surround the outside of the casing. Fig. 2 shows a plant incorporating the extruder. In use the inflated templet tubing is fed to the nozzle and emerges from it carrying a continuous extruded easing, which is set in bath 102. The tubing is pulled through the nozzle by vertical driving chain 103 to which it is attached automatically by means of connectors which join individual lengths of inflated tubing together. When a length of tubing reaches the top of the vertical conveyer it is picked up on a horizontal intermittent conveyer 104. Just before the length of tubing reaches the vertical conveyer an intermittent steam jet travelling with the conveyer severs the extruded easing surrounding the connection with the next length, to facilitate removal. After removal, setting fluid from inside and outside the casing drains off and the completed lengths pass through drying, washing and redrying cabinets to firm the casing, the templets being held for the purpose between the horizontal conveyer, and a bottom conveyer 105 having slots which engage automatically with the connectors at the bottom ends of the templets. Forced-draught drying with warm air is employed. After controlled rehumidification the finished casing is removed from the templets by shaped rubber pads on a vertical-chain shirring device 106 operating during a dwell in the conveyer movement, and the templets then pass, still on conveyer 104 to an automatic release device which causes them to drop into slotted storage shoot 107. Here they are held, hanging vertically with the connectors engaged in the slot, to await reconnection at 108 for a further passage through the extrusion nozzle. Figs. 3a and 3b (not shown) show the construction of the templet connectors (201) for the leading end of a length of tubing and (202) for the bottom end.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB32451/67A GB1185736A (en) | 1967-07-14 | 1967-07-14 | Tubular Casings |
IE662/68A IE32130B1 (en) | 1967-07-14 | 1968-06-05 | Tubular casings |
LU56227D LU56227A1 (en) | 1967-07-14 | 1968-06-07 | |
BE716289D BE716289A (en) | 1967-07-14 | 1968-06-07 | |
FR1582520D FR1582520A (en) | 1967-07-14 | 1968-06-10 | |
DE19681778830 DE1778830A1 (en) | 1967-07-14 | 1968-06-10 | Method and device for the production of tubular casings |
NL6808162A NL6808162A (en) | 1967-07-14 | 1968-06-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB32451/67A GB1185736A (en) | 1967-07-14 | 1967-07-14 | Tubular Casings |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1185736A true GB1185736A (en) | 1970-03-25 |
Family
ID=10338792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32451/67A Expired GB1185736A (en) | 1967-07-14 | 1967-07-14 | Tubular Casings |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE716289A (en) |
DE (1) | DE1778830A1 (en) |
FR (1) | FR1582520A (en) |
GB (1) | GB1185736A (en) |
IE (1) | IE32130B1 (en) |
LU (1) | LU56227A1 (en) |
NL (1) | NL6808162A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110779308A (en) * | 2019-10-25 | 2020-02-11 | 无锡宝亿能源设备有限公司 | Casing dryer |
CN113681791A (en) * | 2021-07-05 | 2021-11-23 | 安徽豪家管业有限公司 | Plastic pipe production method and production equipment |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0323144A3 (en) * | 1987-12-28 | 1990-05-16 | Vyzkumny Ustav Potravinarskeho Prumyslu | Method of manufacturing at least single-layer tubular blood vessel endoprosthesis, especially of a small internal diameter, and extruding nozzle for carrying out this method |
GB9127463D0 (en) * | 1991-12-28 | 1992-02-19 | Devro Ltd | Co-extruded collagen coated foodstuffs particularly sausages |
-
1967
- 1967-07-14 GB GB32451/67A patent/GB1185736A/en not_active Expired
-
1968
- 1968-06-05 IE IE662/68A patent/IE32130B1/en unknown
- 1968-06-07 LU LU56227D patent/LU56227A1/xx unknown
- 1968-06-07 BE BE716289D patent/BE716289A/xx unknown
- 1968-06-10 FR FR1582520D patent/FR1582520A/fr not_active Expired
- 1968-06-10 DE DE19681778830 patent/DE1778830A1/en active Pending
- 1968-06-10 NL NL6808162A patent/NL6808162A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110779308A (en) * | 2019-10-25 | 2020-02-11 | 无锡宝亿能源设备有限公司 | Casing dryer |
CN113681791A (en) * | 2021-07-05 | 2021-11-23 | 安徽豪家管业有限公司 | Plastic pipe production method and production equipment |
CN113681791B (en) * | 2021-07-05 | 2023-05-26 | 安徽豪家管业有限公司 | Plastic pipe production method and production equipment |
Also Published As
Publication number | Publication date |
---|---|
IE32130L (en) | 1969-01-14 |
FR1582520A (en) | 1969-10-03 |
BE716289A (en) | 1968-12-09 |
IE32130B1 (en) | 1973-04-18 |
NL6808162A (en) | 1969-01-16 |
DE1778830A1 (en) | 1971-12-30 |
LU56227A1 (en) | 1969-04-22 |
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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 |