US3445070A - Adjustment of the rolls of grinders and other machines which include rolls - Google Patents

Adjustment of the rolls of grinders and other machines which include rolls Download PDF

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Publication number
US3445070A
US3445070A US352158A US3445070DA US3445070A US 3445070 A US3445070 A US 3445070A US 352158 A US352158 A US 352158A US 3445070D A US3445070D A US 3445070DA US 3445070 A US3445070 A US 3445070A
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United States
Prior art keywords
rolls
pressure
tightening
chambers
chamber
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Expired - Lifetime
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US352158A
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English (en)
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Andre Louis Verdier
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B02C4/36—Adjusting, applying pressure to, or controlling the distance between, milling members in mills specially adapted for paste-like materials
    • 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
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/68—Positioning of rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/235—Calendar

Definitions

  • An adjusting device for controlling the actual spacing of the working surfaces of the rolls of a rolling or milling machine comprising a pair of gauging means each responsive to the actual distance between the end bearings at one side of the rolls, each gauging means including a chamber whose volume tends to vary in response to variations in said distance, to produce a marginal variation of pressure of a fluid contained in the chamber. Means are provided to control the tightening forces applied to the bearings and/or rotation speeds of the rolls, in response to the pressure variations.
  • the invention relates to machines such as grinders, calenders and rolling mills, which include at least two rotating rolls pressed one against the other along a generatrix. For a long time past it has been found that it is very difiicult to regulate the compression between the rolls in a satisfactory manner and in particular to obtain an equal degree of compression at the two ends of the rolls.
  • one of the rolls is generally mounted on movable bearings which are urged towards the fixed bearings of another roll by adjusting or tightening devices. If the forces applied in this way to the two movable bearings are equal, the rolls are not applied equally one against the other at their two ends when they are rotated and the materials passing between the rolls do not undergo equal compression from one end of the latter to the other.
  • This difficulty is partially perceptible in grinders comprising rolls driven rotatively at one of their ends and between which there passes a pasty material intended, for example, for the manufacture of substances such as printing inks, paints, soap or chocolate.
  • the unevenness of the pressures is manifested by differences in the colouration of the paste from one end of the rolls to the other.
  • the sole method used heretofore to obtain an approximately uniform pressure along the rolls was to act on the tightening devices, taking this colouration of the paste as a guide.
  • Difiiculties of the same nature are encountered when it is sought to obtain a uniform compression along the rolls of a calender serving, for example, to manufacture a sheet of rubber or of plastics material from a paste, or along the rolls of a rolling mill.
  • the tightening forces are regulated as a function of, for example, the speed of rotation of the rolls and the thickness of the pasty or solid layer issuing from the machine, but no means are available for controlling the compression which the layer actually undergoes as it passes between the rolls.
  • the result is that the relation between the tightening or closing effect, the speed and the thickness is chosen empirically and there is a risk that the quality of the product obtained will vary with various factors, such as the composition, viscosity or temperature of the raw material.
  • the desired compression between the rolls is obtained by regulating the tightening forces as a function of the amount by which they move apart under the action of the materials passing between them.
  • the tightening forces are regulated, either directly or indirectly (for example by acting on the speed of rotation of the cylinders), in such manner as to maintain the distance between the rolls at a predetermined value, the material passing between the latter is subjected to precisly the compression that is desired.
  • the distances between the rolls are measured at two points of their axes by devices sensitive to the relative movements thereof.
  • These devices may be mechanically, electrically or electronically operated gauges, but they are constituted with advantage by chambers whose volume varies under the action of the relative movements of the axes of the cylinders, producing variations in fluid pressure which are used to regulate the tightening forces.
  • the latter may be regulated manually in accordance with indications given by the devices which measure the distances or intervals.
  • these indications are preferably used as an input signal for the device for controlling or regulating the tightening forces.
  • FIGURE 1 is a diagrammatic elevational view of a grinder
  • FIGURE 2 shows the same grinder in section on the line A-A of FIGURE 1 and equipped with an improved tightening system according to the invention and
  • FIGURE 3 is a diagram of an alternative constructional form of the improved tightening system.
  • the grinder shown comprises three rolls 1, 2 and 3 rotating in the directions indicated by the arrows at graduated speeds, that is to say the roll 3 rotates faster than the roll 2, which itself rotates faster than the roll 1.
  • the paste 4 to be treated and which is intended, for example, for the manufacture of printing ink passes between the slow roll 1 and the intermediate roll 2, adheres to the latter at 4a by reason of its greater speed and then passes at 4b on to the collecting roll 3, which rotates still more quickly, and is then detached by the scraper 5.
  • the roll 1 is journalled in two fixed side plates 1a and 1b.
  • the roll 2 is a floating roll, that is to say it is journalled in two side plates 2a and 2b which are pivotally mounted on a spindle 6.
  • the roll 3 is also journalled in two side plates 3a and 3b which are pivotally mounted on a spindle 7.
  • the grinder may comprise an offsetting device, shown diagrammatically at 10, enabling the spindle 6 to be displaced in height in order to vary the off-setting of the middle roll 2 with respect to the rolls 1 an 3.
  • the axes of the rolls 1 and 3 are in a substantially horizontal plane, the machine being arranged with the off-setting device at the bottom and the tightening devices 8 and 9 at the top.
  • the rolls are driven rotatively at difierent speeds by a driving arrangement located at the side of the plates 1b, 2b, 3b and represented diagrammatically in FIGURE 2 by a train of gears 11.
  • the tightening system comprises two single-acting jacks 8 and 9, the cylinders 8a, 9a of which are connected to the fixed side plates 1b and 1a respectively, and the piston rods 8b, 9b of which are connected respectively to the movable side plates 3b and 3a of the collecting roll.
  • the chambers 8c, 90 of the jacks are open to the atmosphere, while the chambers 8d, 9d are placed under pressure to provide the tightening action.
  • the placing under pressure may be obtained in a so-called static manner by means of a hydraulic fluid compressed by a piston moving in a cylinder.
  • the placing under pressure is effected in a so-called dynamic manner, the hydraulic fluid drawn from the reservoir 12 being compressed at a constant pressure by a pump 13 and delivered by the pipe 14 into a pressure regulating valve 15 which supplies in parallel, on the one hand, a pipe 16 equipped with a pressure gauge 16a and leading to the chamber 8d of the jack 8 and, on the other hand, a pipe 17 equipped with a pressure gauge 17a and supplying the chamber 9:! of the jack 9 through the medium of a pressure reducing valve 18.
  • Each of the valves 15 and 18 enables the pressure to be regulated downstream thereof by delivering a part of the fluid into a discharge pipe 15a or 18a which returns it to the tank 12.
  • a dilferential pressure gauge 19 is connected by pipes 20 and 21 to the chambers 8c and 90 which are not open to the atmosphere in accordance with the arrangements usual hitherto but are filled with oil, so that the pressure gauge 19 indicates the difference in the pressures prevailing in these chambers and 90.
  • a by-pass 22 which can be closed by two cocks 20a and 21a and which leads to a variable outlet 23 controlled by a cock 23a.
  • An auxiliary pressure gauge 24 is connected by a cock 24a to the pipe 20.
  • the two chambers 8C and 9c are first filled with oil by means of cocks such as 25 (FIG. 1) and these cocks are closed.
  • the two cocks 20a and 21a are opened and the outlet 23 is controlled by means of the cock 23a in such manner that the pressure in the chambers 8c and does not reach a value liable to damage the differential pressure gauge 19.
  • the pressure in the respective chambers 80 and 9c is substantially the same since the pistons of the two jacks advance simultaneously and at the same speed, bringing the rolls nearer to one another, and it is read on the pressure gauge 24.
  • the cock 23a is first closed so that the pressures in the chambers 80 and 9c are strictly equalised owing to the by-pass 22, and then the cocks 20a and 21a are closed. In this position, the rolls are applied one against the other and the oil pressure is precisely the same in the chambers 80 and 9c.
  • the pressure gauge 19 therefore indicates a zero difierential pressure.
  • the paste 4 first passes between the rolls 1 and 2 and then between the rolls 2 and 3, moving them apart to a greater extent at the end where the side plates 1b, 2b, 3b are located than at the end where the side plates 1a, 2a, 3a are located.
  • the result is that the pistons of the two jacks shift slightly towards the bottom of FIGURE 1, reducing the pressure in the chambers 8c and 9c, the pressure decreasing more in the chamber 80 than in the chamber 9c.
  • the differential pressure gauge '19 therefore indicates a lower pressure in the chamber 80 than in the chamber 90.
  • the differential pressure gauge 19 may be provided with electrical contacts controlling a servomotor which actuates the valve 18, but it is also possible to use other types of control using the differential pressure as an input signal.
  • This control of the valve 18 in response to the differential pressure is indicated diagrammatically in FIGURE 2 by the chain-dotted line 26.
  • the invention may be applied in the same manner to grinders in which the tightening system is static, that is to say in which the jacks are placed under pressure by a master cylinder.
  • the differential pressure gauge 19 may be connected between two chambers similar to the chambers 8c and 9c, fast with the bearings of the roll 1 and having pistons which are fast with the bearings of the cylinder 8.
  • FIG- URE 3 the elements performing the same function as in FIGURE 2 are designated by the same reference numerals.
  • the cocks 20a and 21a are replaced by electric valves 27 and 28 and the outlet 23 is replaced by a pressure accumulator 29 of the hydropneumatic type; moreover, the by-pass 22 is connected to a cock 30 enabling the volume of oil in the whole of the installation to be adjusted on starting up and, consequently, enabling the cocks 25 of FIGURE 1 to be dispensed with.
  • the two electric valves 27 and 28 are opened and the oil expelled by the reduction in volume of the chambers 80 and 9c is delivered to the accumulator 29.
  • the preliminary tightening operation having been completed, the electric valves 27 and 28, which are controlled by a single electric circuit (not shown), are closed simultaneously and it is 7 thus ensured that there will be equal pressures in the two chambers 8c and 90.
  • FIGURE 3 Also shown in FIGURE 3 are the motor 13a of the pump 13 and a filter 131) located at the intake of this pump, in the reservoir 12.
  • the valve 18 is an electric valve controlled by the differential manometer 19 through the line 26.
  • the valve 15 is also an electric valve.
  • a manometric contactor 31 is provided which is connected to the pipe 16 and which, by means of electrical connections (not shown) controlling the valve 15 or the pump 13, enables the placing of the installation under pressure to be interrupted in the event of the pressure increasing abnormally.
  • the pressure gauge 24 measures the pressure in the chamber 8c and consequently gives an indication of the spacing adopted by the rolls under the action of the paste interposed between them.
  • the valve 15 By operating the valve 15 in such manner as to maintain this pressure at a given value, it is therefore possible to give the rolls the desired spacing.
  • regulation of the tightening action as a function of the distance between, or spacing of, the rolls is provided, this being represented diagrammatically b ya pressure gauge 32 with electrical contacts, which is connected to the pipe 20 and, by a line 33, to the regulating valve 15 and to a control 33a controlling the speed of rotation of the rolls.
  • the thickness of the layer formed on the exit or delivery roll such as 3 can be determined by controlling the weight of material supplied during a given time. It is sufiicient to know the specific gravity of the material, such as the paste 4, and to take account of the tangential speed and of the width of the layer recovered from the exit roll. This layer thickness, however, does not give any indication of the value of the distance between the last two rolls or between the preceding rolls. The applicant has found that in a machine having rolls with graduated speeds these distances are distinctly smaller than the thickness of the layer recovered.
  • the pressure gauge 32 for example, comprises a plurality of electrical contacts arranged to transmit to the line 33 signals which are used by the valve 15 to supply to the chamber 8d a tightening pressure which Will maintain the chamber 80 at the desired pressure, the pressure in the chamber 90 being maintained equal to the pressure in the chamber 80 by the control device described above. If the valve 15 cannot respond to a call for an increase in the tightening pressure (for instance because the latter is already equal to the pressure of the pump 13), the signal transmitted over the line 33 actuates the control 33a for slowing down the rolls. The eifect of this slowing down is to reduce the quantity of paste which is introduced between the rolls, the result is that the distance between the rolls decreases until the pressure in the chamber 80, which measures this distance, has reached the desired value.
  • the contacts of the pressure gauge 32 are adjustable and this enables the pressure which is automatically maintained in the chamber 80 by the regulating arrangement to be adjusted at will.
  • the invention applies not only to machines (such as grinders and calenders) comprising rolls which rotate at graduated speeds, but also to machines (such as calenders and rolling mills) in which the rolls rotate at equal speeds.
  • an adjusting device for the rolls comprising two jacks disposed between the said bearings, each jack having a first chamber, means for applying pressure to said first chamber so as to exert a force at the end of the rolls and a second chamber with fluid therein constituting a gauge to measure the relative movements of the ends of the rolls and to regulate the forces exerted on the rolls as a function of the said movements.
  • control means are responsive to the pressures in the chambers to control the biasing means and power means to maintain said pressures at preselected values.
  • a device as claimed in claim 2 comprising a differential pressure gauge responsive to the difierence of pressures in the chambers.
  • a device as claimed in claim 4 comprising first and second pipes connecting the differential pressure gauge to the respective chambers of the first and second gauging means, respectively, an obturable by-pass connecting both pipes, and means for selectively connecting said pipes to a pressure discharge means.
  • control means are responsive to the pressure in the first chamber to control the first biasing means and power means to maintain the pressure in said first chamber at a preselected value.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Confectionery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
US352158A 1963-03-19 1964-03-16 Adjustment of the rolls of grinders and other machines which include rolls Expired - Lifetime US3445070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928484A FR1376499A (fr) 1963-03-19 1963-03-19 Perfectionnements au serrage des cylindres de broyeuses et autres machines à cylindres

Publications (1)

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US3445070A true US3445070A (en) 1969-05-20

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US352158A Expired - Lifetime US3445070A (en) 1963-03-19 1964-03-16 Adjustment of the rolls of grinders and other machines which include rolls

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US (1) US3445070A (fr)
CH (1) CH411534A (fr)
DE (1) DE1289396B (fr)
FR (1) FR1376499A (fr)
GB (1) GB1063731A (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978784A (en) * 1974-11-11 1976-09-07 Dominion Engineering Works, Limited Calendar control system
FR2442131A1 (fr) * 1978-11-22 1980-06-20 Bundaberg Foundry Cy Ltd Appareil de commande de rouleau de broyeur
US4220288A (en) * 1978-12-04 1980-09-02 The Bundaberg Foundry Company Limited Mill roller controlling apparatus
US4635861A (en) * 1984-02-11 1987-01-13 Gebruder Buhler Ag Roller mill
US4810179A (en) * 1988-01-27 1989-03-07 Marshall & Williams Company Force indicator for casting machines
US5057167A (en) * 1989-02-02 1991-10-15 Hermann Berstorff Maschinenbau Gmbh Method for producing chip- and fiber-board webs of uniform thickness
US5263840A (en) * 1989-10-30 1993-11-23 Sulzer-Escher Wyss Gmbh Calendar for surface treatment of material webs
US5372315A (en) * 1992-08-07 1994-12-13 Kloeckner-Humboldt-Deutz Ag Method and system for the pressure treatment of granular material
US5379950A (en) * 1992-12-19 1995-01-10 Buhler Ag Method and system for controlling a layer thickness in a grinding operation
US6685118B1 (en) 2000-12-19 2004-02-03 Robert M. Williams, Jr. Two roll crusher and method of roller adjustment
DE102006057991A1 (de) * 2006-12-08 2008-06-12 Polysius Ag Mühle mit Anpresssystem
US20090223192A1 (en) * 2008-03-04 2009-09-10 Manfred Engel Kernel Processing Assembly
EP2103223A1 (fr) * 2008-03-18 2009-09-23 Kraft Foods R & D, Inc. Procédé de contrôle d'un processus dans lequel la taille de la particule d'un matériau est réduite, machine pour réduire la taille de la particule d'un matériau et procédé d'étalonnage d'une telle machine
CN106238135A (zh) * 2016-09-22 2016-12-21 合肥工业大学 一种双功能五谷杂粮粉碎机
JP2018058113A (ja) * 2016-10-06 2018-04-12 ユースエンジニアリング株式会社 ロールプレス装置
CN113729251A (zh) * 2021-09-07 2021-12-03 广州天地实业有限公司 一种具有预警保护装置的饲料颗粒机

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DE1507637B1 (de) * 1966-10-26 1970-05-14 Rieter Werke Haendle UEberlastschutzvorrichtung fuer Feinwalzwerke
DE2543738C3 (de) * 1975-10-01 1981-01-08 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Kalander für Folien aus thermoplastischem Kunststoff oder elastomerem Material
DE2704243A1 (de) * 1977-02-02 1978-08-03 Kloeckner Humboldt Deutz Ag Walzenmuehle
US4739641A (en) * 1986-04-25 1988-04-26 Connell Limited Partnership Process and apparatus for flattening sheet gauge metal scrap
GB2237239B (en) * 1989-10-27 1993-09-01 Reifenhaeuser Masch A process for the production of a ribbon of synthetic thermoplastic material in sheet form
EP0451495B1 (fr) * 1990-04-09 1994-11-17 Paul Troester Maschinenfabrik Dispositif de contrôle d'une calandre pour la fabrication de plaques d'étanchéité
DE4011410C2 (de) * 1990-04-09 1994-06-09 Troester Maschf Paul Kalander zur Herstellung von Dichtungsplatten
DE19722523A1 (de) * 1997-05-30 1998-12-03 Buehler Ag Verfahren und Vorrichtung zur hydraulisch-elektrischen Spaltregelung

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Publication number Priority date Publication date Assignee Title
US2479759A (en) * 1945-06-08 1949-08-23 Hubert Duesberg Apparatus for the treatment of webs or fleeces
US2610801A (en) * 1949-03-12 1952-09-16 Edmund E Edmiston Roller mill
US2794603A (en) * 1953-11-24 1957-06-04 Kent Machine Works Inc Roller mill
US2861504A (en) * 1956-10-26 1958-11-25 Thomas E Kane Pressure regulated calender to insure equal nip pressure at all points
US3010663A (en) * 1955-01-28 1961-11-28 Buehler Ag Geb Apparatus for controlling roller mills
US3023695A (en) * 1958-07-04 1962-03-06 Textilmaschinen Eduard Kusters Roll arrangements for subjecting strip or web material to pressure treatment
US3182587A (en) * 1962-01-19 1965-05-11 Goodyear Tire & Rubber Apparatus for calendering or sheeting deformable material

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FR909145A (fr) * 1944-10-02 1946-04-30 Charvet & Cie Dispositif de réglage hydraulique applicable aux broyeurs à cylindres et machines analogues
DE946767C (de) * 1954-03-06 1956-08-02 Kieler Howaldtswerke Ag Mehrzylinderpresse mit hydraulischer Gleichlaufvorrichtung
DE1040887B (de) * 1956-02-28 1958-10-09 F B Lehmann G M B H Maschinenf Hydraulische Anpressvorrichtung fuer Walzwerke zum Bearbeiten von Farben, Schokolade oder aehnlichen Stoffen
DE1079930B (de) * 1956-12-17 1960-04-14 Gutehoffnungshuette Sterkrade Hydraulische Druckausgleichvorrichtung fuer Arbeitsmaschinen
DE1036801B (de) * 1957-03-09 1958-08-21 Kleinewefers Soehne J Ausgleichseinrichtung fuer die Druckhydraulik an Kalandern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479759A (en) * 1945-06-08 1949-08-23 Hubert Duesberg Apparatus for the treatment of webs or fleeces
US2610801A (en) * 1949-03-12 1952-09-16 Edmund E Edmiston Roller mill
US2794603A (en) * 1953-11-24 1957-06-04 Kent Machine Works Inc Roller mill
US3010663A (en) * 1955-01-28 1961-11-28 Buehler Ag Geb Apparatus for controlling roller mills
US2861504A (en) * 1956-10-26 1958-11-25 Thomas E Kane Pressure regulated calender to insure equal nip pressure at all points
US3023695A (en) * 1958-07-04 1962-03-06 Textilmaschinen Eduard Kusters Roll arrangements for subjecting strip or web material to pressure treatment
US3182587A (en) * 1962-01-19 1965-05-11 Goodyear Tire & Rubber Apparatus for calendering or sheeting deformable material

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978784A (en) * 1974-11-11 1976-09-07 Dominion Engineering Works, Limited Calendar control system
FR2442131A1 (fr) * 1978-11-22 1980-06-20 Bundaberg Foundry Cy Ltd Appareil de commande de rouleau de broyeur
US4220288A (en) * 1978-12-04 1980-09-02 The Bundaberg Foundry Company Limited Mill roller controlling apparatus
US4635861A (en) * 1984-02-11 1987-01-13 Gebruder Buhler Ag Roller mill
US4810179A (en) * 1988-01-27 1989-03-07 Marshall & Williams Company Force indicator for casting machines
US5057167A (en) * 1989-02-02 1991-10-15 Hermann Berstorff Maschinenbau Gmbh Method for producing chip- and fiber-board webs of uniform thickness
US5263840A (en) * 1989-10-30 1993-11-23 Sulzer-Escher Wyss Gmbh Calendar for surface treatment of material webs
US5372315A (en) * 1992-08-07 1994-12-13 Kloeckner-Humboldt-Deutz Ag Method and system for the pressure treatment of granular material
US5379950A (en) * 1992-12-19 1995-01-10 Buhler Ag Method and system for controlling a layer thickness in a grinding operation
US6685118B1 (en) 2000-12-19 2004-02-03 Robert M. Williams, Jr. Two roll crusher and method of roller adjustment
DE102006057991A1 (de) * 2006-12-08 2008-06-12 Polysius Ag Mühle mit Anpresssystem
US20090223192A1 (en) * 2008-03-04 2009-09-10 Manfred Engel Kernel Processing Assembly
US7708221B2 (en) * 2008-03-04 2010-05-04 Deere & Company Pivoting roll arrangement for kernel processing assembly
EP2103223A1 (fr) * 2008-03-18 2009-09-23 Kraft Foods R & D, Inc. Procédé de contrôle d'un processus dans lequel la taille de la particule d'un matériau est réduite, machine pour réduire la taille de la particule d'un matériau et procédé d'étalonnage d'une telle machine
US20090238928A1 (en) * 2008-03-18 2009-09-24 Hans-Peter Bernauer Method Of Controlling A Process In Which The Particle Size Of A Material Is Reduced, A Machine For Reducing The Particle Size Of A Material And A Method Of Calibrating Such A Machine
US9387479B2 (en) 2008-03-18 2016-07-12 Kraft Foods R & D, Inc. Method of controlling a process in which the particle size of a material is reduced, a machine for reducing the particle size of a material and a method of calibrating such a machine
CN106238135A (zh) * 2016-09-22 2016-12-21 合肥工业大学 一种双功能五谷杂粮粉碎机
CN106238135B (zh) * 2016-09-22 2018-10-02 合肥工业大学 一种双功能五谷杂粮粉碎机
JP2018058113A (ja) * 2016-10-06 2018-04-12 ユースエンジニアリング株式会社 ロールプレス装置
CN113729251A (zh) * 2021-09-07 2021-12-03 广州天地实业有限公司 一种具有预警保护装置的饲料颗粒机

Also Published As

Publication number Publication date
FR1376499A (fr) 1964-10-31
DE1289396B (de) 1969-02-13
CH411534A (fr) 1966-04-15
GB1063731A (en) 1967-03-30

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