GB1152061A - Pelleting Apparatus - Google Patents
Pelleting ApparatusInfo
- Publication number
- GB1152061A GB1152061A GB2655966A GB2655966A GB1152061A GB 1152061 A GB1152061 A GB 1152061A GB 2655966 A GB2655966 A GB 2655966A GB 2655966 A GB2655966 A GB 2655966A GB 1152061 A GB1152061 A GB 1152061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- punch
- roller
- strain gauge
- compression
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
- G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
1,152,061. Tabletting machines. UPJOHN CO. 14 June, 1966, No. 26559/66. Heading B5A. [Also in Divisions G1 and G3] In a rotary table, multiple die, opposed plunger pelletizer machine for producing tablets by compressing powder in a die, the applied force is measured by a first strain gauge, and the force required to eject the tablet by a second strain gauge. As shown (Fig. 2), the powder is fed into a die between an upper punch 1 and a lower punch 2, mounted with others on a rotating table. Compression is produced by pressure rollers 14, 41. The former is eccentrically attached to a shaft 12, carrying at the other end a crank with a roller 21 resting on a crosshead 23. An identical assembly is mounted on the other side of the crosshead 23, and the complete unit is supported by a plunger 24 urged upwards by spring 26 and fluid pressure F, counterbalanced by screws 28, 29 bearing on the rollers 21, 22. As the table is rotated an upper punch 1 is forced down by roller 14 as its mating lower punch 2 is raised by an eccentrically mounted lower pressure roller 41, to compress a predetermined quantity of powder fed between them. During compression, roller 14 is partially rotated, reducing the strain in screw 28, and this change in strain is measured by a semi-conductor resistance strain gauge 31 (Fig. 4) bonded to the screw, and associated with a similar strain gauge 84 and two static resistors 83, 86 in a bridge circuit 32 whose output is indicated on a CRO 39 or a recorder. Ejection of the formed tablet is effected by the lower punch 2 passing along a ramp 51 (Fig. 6) secured to a flange 53. A block 56 is mounted below the flange, carrying screws 59, 61 which protrude through holes in the flange to abut the pump 51. Thus as the lower punch 2 is forced up the ramp, the force needed to eject the formed tablet increases the compression on screws 59, 61 and is measured by a strain gauge resistor 71 mounted on screw 61 and connected in another bridge circuit. The measured compression force in the punches may be averaged and compared with a reference value to regulate (a) the compression force (Fig. 9, not shown) by adjusting the vertical position of roller 41, (b) the volume above punch 2 to be filled with powder (Fig. 10, not shown), by adjusting the vertical position of punch 2 when the powder is introduced, (c) the quantity of powder for each tablet by adjusting the pressure of a fluid controlling the powder feed (Fig. 11, not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2655966A GB1152061A (en) | 1966-06-14 | 1966-06-14 | Pelleting Apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2655966A GB1152061A (en) | 1966-06-14 | 1966-06-14 | Pelleting Apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1152061A true GB1152061A (en) | 1969-05-14 |
Family
ID=10245545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2655966A Expired GB1152061A (en) | 1966-06-14 | 1966-06-14 | Pelleting Apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1152061A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2310590A1 (en) * | 1975-05-09 | 1976-12-03 | Fette Wilhelm Gmbh | PROCEDURE FOR PERMANENT CONTROL OF THE COMPRESSION EFFORT OF A TABLET OR PELLET PRESS AND DEVICE FOR ITS IMPLEMENTATION |
FR2403792A1 (en) * | 1977-09-22 | 1979-04-20 | Fette Wilhelm Gmbh | PROCESS FOR THE MANUFACTURING OF TABLETS AND PRESS FOR CONFECTIONING THE TABLETS |
EP0261358A1 (en) * | 1986-08-23 | 1988-03-30 | Wilhelm Fette GmbH | Quality control method in the manufacture of tablets |
EP0350563A2 (en) * | 1988-07-11 | 1990-01-17 | Wilhelm Fette GmbH | Method and apparatus for monitoring the press loads of the punches in a tablet press |
NL1006041C2 (en) * | 1997-05-13 | 1998-11-19 | Struyk Verwo Groep B V | Press moulding process for making shaped concrete articles |
CN104985850A (en) * | 2015-06-17 | 2015-10-21 | 镇江港和新型建材有限公司 | Pressing wheel adjusting mechanism |
-
1966
- 1966-06-14 GB GB2655966A patent/GB1152061A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2310590A1 (en) * | 1975-05-09 | 1976-12-03 | Fette Wilhelm Gmbh | PROCEDURE FOR PERMANENT CONTROL OF THE COMPRESSION EFFORT OF A TABLET OR PELLET PRESS AND DEVICE FOR ITS IMPLEMENTATION |
FR2403792A1 (en) * | 1977-09-22 | 1979-04-20 | Fette Wilhelm Gmbh | PROCESS FOR THE MANUFACTURING OF TABLETS AND PRESS FOR CONFECTIONING THE TABLETS |
EP0261358A1 (en) * | 1986-08-23 | 1988-03-30 | Wilhelm Fette GmbH | Quality control method in the manufacture of tablets |
EP0350563A2 (en) * | 1988-07-11 | 1990-01-17 | Wilhelm Fette GmbH | Method and apparatus for monitoring the press loads of the punches in a tablet press |
EP0350563A3 (en) * | 1988-07-11 | 1991-06-19 | Wilhelm Fette GmbH | Method and apparatus for monitoring the press loads of the punches in a tablet press |
NL1006041C2 (en) * | 1997-05-13 | 1998-11-19 | Struyk Verwo Groep B V | Press moulding process for making shaped concrete articles |
CN104985850A (en) * | 2015-06-17 | 2015-10-21 | 镇江港和新型建材有限公司 | Pressing wheel adjusting mechanism |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
436 | Application for cancellation of endorsement 'licences of right' (sect. 36/1949) | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PE | Patent expired |