GB856124A - Plastic material calendering machine - Google Patents
Plastic material calendering machineInfo
- Publication number
- GB856124A GB856124A GB16215/59A GB1621559A GB856124A GB 856124 A GB856124 A GB 856124A GB 16215/59 A GB16215/59 A GB 16215/59A GB 1621559 A GB1621559 A GB 1621559A GB 856124 A GB856124 A GB 856124A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- roller
- blade
- blades
- nylon
- 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
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
- B29B7/562—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set with means for axially moving the material on the rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
856,124. Calendering machines. BLAW-KNOX CO. May 12, 1959 [June 5, 1958], No. 16215/59. Class 87(2). Apparatus for milling and calendering plastic stock comprises a pair of rotatable mill rollers, a carriage arranged above the calendering roller and cutting and deflecting means carried by the carriage and adapted to bear against the calendering roller in order to cut and deflect strips of stock for repeated passage between the rollers, the deflecting means being angularly adjustable on the carriage. The nip between the rollers 21, 22, which are hollow for the passage of temperature regulating fluid, is adjustable by a screw 28, a cushion spring 29 being interposed and a shear pin 28d inserted to prevent injury in case foreign matter enters the nip. A band 37 passes round part of the calendering roller 22, driven at a lineal speed equal to the peripheral speed of the roller, and prevents the pellets of material from initially dropping off the roller. The frame 35 carrying the rollers which guide the band is mounted on wheels 47 which run on tracks 48 for ease of removal. Fragments of stock are removed from the feed roller 21 by a nylon scraper blade 53 on a swinging frame 54 which is moved to and from the roller surface by pneumatic cylinders 58. The deflector blades, which are also of nylon, are supported from shafts 68, 70 which form part of a carriage 60 and are clamped down by clamps 75. The shafts 68, 70 connect side members 67 which extend from blocks 66 pivoting on a shaft 65. The carriage is pivotally mounted so that it may be raised by a hoist cable 88, Fig. 5, wound on a drum 80 and lead round a system of pulleys 89, 91 (not shown, coaxial with 92), 93, 92 and 94, the drum 80 being operated by a hand wheel 85 or a motor The pellets are fed to the nip between the rollers from a hopper 100 pivotally supported between two arms 128 clamped to the shaft 70. When the material passes outwards to both ends of the rollers the hopper is on the centre line, as shown ; if in one direction only the hopper is at one end. The feed roller 21 is chamfered accordingly. The feed is adjustable by altering the passage from the hopper by nuts 106 on tie rods 105, Fig. 10, and by altering the positions of swinging extensions 110 from the side plates by a screw threaded shaft 112 rotated by a chain 118 from a sprocket 119, on the shaft 65, by a hand wheel 120. The material is confined to the nip by nylon side boards 123, 126. When the material has passed once around the roller 22 it is diverted to pass outside the side boards by divergent blades 140, of nylon, spring-mounted on an arm 145 which is clamped to the shaft 68. Screw threaded plugs 147 adjust the pressure of the blades on the roller surface and their alignment is adjustable by the position of the clamp 151. The material is repeatedly severed and moved towards the ends of the rollers by nylon deflector blades 155, Fig. 14, spring-mounted on link arms 160 clamped at both ends to the shafts 68, 70 through slotted connections which allow angular adjustment of the blades, with respect to the rollers, by moving the clamps along the shafts. The number of deflector blades may be varied Fig. 2 showing, on the right-hand side, eleven angular deflector blades and an end transverse deflector blade and, on the left-hand side, five angular deflector blades and an end transverse deflector blade. The leading edge of each blade 155 is sharpened as shown at 155b, Fig. 14, and the spring mounting is through floating shafts 159 extending from a bracket 157 to which the blade is bolted. The spring tension is adjustable by plugs 162. The tips of end deflector blades have extensions which conform to the contour of the nip between the rollers, to retain the material, and are connected to the main blade through links to enable them to pivot when the carriage 60 swings as it is raised. When the material reaches the end of the rollers 22 it is cut off as a strip, by a nylon blade on a pivoting frame kept against the surface roller by pneumatic cylinder and piston means, and the strip is continuously fed to a conveyer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US740047A US2968832A (en) | 1958-06-05 | 1958-06-05 | Continuous mill |
Publications (1)
Publication Number | Publication Date |
---|---|
GB856124A true GB856124A (en) | 1960-12-14 |
Family
ID=24974820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16215/59A Expired GB856124A (en) | 1958-06-05 | 1959-05-12 | Plastic material calendering machine |
Country Status (2)
Country | Link |
---|---|
US (1) | US2968832A (en) |
GB (1) | GB856124A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0115958A1 (en) * | 1983-01-31 | 1984-08-15 | Redland Technologies Limited | Apparatus for manufacture of cementitious building products |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3075238A (en) * | 1960-11-09 | 1963-01-29 | Blaw Knox Co | Method and apparatus for milling rubber and like material |
US8152509B2 (en) * | 2009-06-01 | 2012-04-10 | Processing Technologies, Llc | Gap adjusting mechanism for rolls on a roll stand used in the extrusion forming of a sheet product |
CN104309021B (en) * | 2014-10-08 | 2016-06-29 | 无锡双象橡塑机械有限公司 | Mill backstop glue shovel gluing mechanism |
CN114800935B (en) * | 2022-04-06 | 2024-02-02 | 常州乔尔塑料有限公司 | Ball milling device for preparing amino molding compound granules |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1418642A (en) * | 1921-05-25 | 1922-06-06 | Morgan & Wright | Mixing machine |
US1736582A (en) * | 1927-06-01 | 1929-11-19 | Hood Rubber Co Inc | Apron conveyer |
US1930736A (en) * | 1930-05-31 | 1933-10-17 | Wingfoot Corp | Method of and apparatus for treating rubber |
US2625709A (en) * | 1948-10-29 | 1953-01-20 | Armstrong Cork Co | Method and apparatus for intensely working plastic materials |
FR1028812A (en) * | 1949-09-14 | 1953-05-28 | British Resin Prod Ltd | Method and apparatus for mixing plastics |
US2663901A (en) * | 1950-11-04 | 1953-12-29 | Aetna Standard Eng Co | Apparatus for milling rubber |
US2713698A (en) * | 1951-06-28 | 1955-07-26 | Du Pont | Wet polymer extruder |
US2730755A (en) * | 1953-01-07 | 1956-01-17 | Aetna Standard Eng Co | Continuous mill |
-
1958
- 1958-06-05 US US740047A patent/US2968832A/en not_active Expired - Lifetime
-
1959
- 1959-05-12 GB GB16215/59A patent/GB856124A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0115958A1 (en) * | 1983-01-31 | 1984-08-15 | Redland Technologies Limited | Apparatus for manufacture of cementitious building products |
Also Published As
Publication number | Publication date |
---|---|
US2968832A (en) | 1961-01-24 |
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