EP0131844A1 - Machine à décortiquer le grain à l'aide de rouleaux en caoutchouc - Google Patents

Machine à décortiquer le grain à l'aide de rouleaux en caoutchouc Download PDF

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Publication number
EP0131844A1
EP0131844A1 EP84107719A EP84107719A EP0131844A1 EP 0131844 A1 EP0131844 A1 EP 0131844A1 EP 84107719 A EP84107719 A EP 84107719A EP 84107719 A EP84107719 A EP 84107719A EP 0131844 A1 EP0131844 A1 EP 0131844A1
Authority
EP
European Patent Office
Prior art keywords
switch
container
switching
state
fill level
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.)
Granted
Application number
EP84107719A
Other languages
German (de)
English (en)
Other versions
EP0131844B1 (fr
Inventor
Walter Dipl.-Ing. Vick
Rolf Suhrbier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F H SCHULE GmbH
Original Assignee
F H SCHULE GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by F H SCHULE GmbH filed Critical F H SCHULE GmbH
Publication of EP0131844A1 publication Critical patent/EP0131844A1/fr
Application granted granted Critical
Publication of EP0131844B1 publication Critical patent/EP0131844B1/fr
Expired legal-status Critical Current

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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
    • B02C11/00—Other auxiliary devices or accessories specially adapted for grain mills
    • B02C11/04—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B7/00—Auxiliary devices
    • B02B7/02—Feeding or discharging devices

Definitions

  • the invention relates to a machine for peeling grains by means of rubber peeling rollers, which has a container for the material to be peeled, which is mounted such that it can move vertically and is supported by a resilient force, and a switching device for switching off the supply of goods and / or for moving the rubber peeling rollers apart when the minimum fill level is reached has in the container, the switching device comprising a switch and a switch actuator, one part of which is fixed to the frame and the other part is fixed to the container and which cooperate due to spatial proximity or distance of their interaction elements such that the switch is brought into a switching state when the container reaches a predetermined higher position, and maintains this until the container reaches a predetermined lower position, in which the switch is switched to another switching state and maintains it until the container reaches the higher position again.
  • the peeling function in rubber roller peelers is based on the fact that the material to be peeled is passed through a nip which is formed between two rollers rotating at different speeds, the surface of which is covered with rubber. If there is no supply of material, the rubber surfaces rub against each other and heat up, which can lead to damage.
  • Known rubber roller peelers US Pat. No. 4,295,614 therefore have, within a container upstream of the roller gap for the material to be peeled, a pneumatic level meter which, when the level falls below a minimum level, causes the container outlet leading from the container to the roller gap to close and the peeling rollers to move apart. As long as such a device works, it protects the machine if there is no supply of goods.
  • the level meter of the known machine is based on a sensitive pneumatic control circuit and is not reliable enough in the reckless operation to which such machines are exposed in the countries primarily considered as rice producers.
  • the invention is therefore based on the object of providing a machine of the type mentioned at the outset which is reliably protected against damage due to a lack of supply of goods.
  • the solution according to the invention consists in that one of the two parts (switch or switch actuator) of the switching device with its interaction element via an adjusting element which can be influenced by a motor is connected, which can assume two positions, whereby in one position the associated cooperating member is so far away from the other cooperating member that they only cooperate in one of the two predetermined height positions of the container, while in the other position of the adjusting member the associated cooperating member constantly , with the exception of the other height of the container, cooperates with the other cooperating member.
  • the motorized adjustment of the adjusting element it is ensured that one switch state of the switch is present when the container is in the transition from the filling state to the empty state, and the other switching state is when the empty state has been reached until maximum filling has taken place again Has.
  • the function is easy to understand even for the technically inexperienced, so that proper maintenance or adjustment is easily possible even in those countries where it is not easy to count on the fact that technical specialists are available.
  • the switch itself can easily be made very robust. This applies in particular if it is designed as a pneumatic switch and the functions to be switched are also carried out by pneumatic motors.
  • a pneumatic piston cylinder device 13 On the side wall of the container 7, a pneumatic piston cylinder device 13 is attached, the piston rod 14 vertical. emerges downwards and carries a stop head 17 at the end. Aligned with the piston rod below it, a switch 15 is attached to the frame 8, from which a member 18 which can be pressed down to actuate the switch against spring force protrudes.
  • the stop head 17 and the depressible member form the above-mentioned cooperation members.
  • the piston rod 14 forms the adjusting member and the piston cylinder device 13 the motor for the adjusting member.
  • the piston-cylinder device with the piston rod and the stop head is the switch actuator and, together with the switch, forms the switching device.
  • the switch 15 When the container 7 is at the minimum fill level 10 in the raised position, the switch 15 is in the switched-off position because the piston rod 14 has been retracted into the cylinder 13 by spring force and its stop head 17 has therefore lost the operative connection to the organ 18 of the switch 15. Because the switch 15 is in the off state, the cylinders 4 and 17 are pressurized with compressed air in a direction intended for idling and is therefore the one Slider 16 closed and the rollers 1 and 3 moved apart.
  • the motor is expediently formed by an expansion motor which is acted upon by pressure medium in one switching state of the switch and is pushed back by a resilient force in the other switching state.
  • the switch actuator expediently comprises a piston-cylinder device as the expansion motor, the adjusting element being formed by the piston rod, which at the end carries a stop as a cooperating element, the piston rod being urged by spring or gravity into an end position in which it is switched off by spring or gravity reached the switch only when at least the predetermined higher level is present in the container, and which is pushed into the other end position after switching on the switch in this position, in which it switches off the switch when the minimum level in the container is reached .
  • a pneumatic cylinder can be attached vertically to the container, for example above the stationary switch.
  • the piston rod In the switched-off state, when the container is raised due to the fill level being too low, the piston rod is pulled back into the cylinder by spring force, and its end then hovers at a distance above the switch which is not equal but proportional to the height difference between the minimum fill level and the higher fill level and corresponds to it. If the container is filled, it gradually lowers until the end of the piston rod, when the higher level is reached in the container, reaches a movable, externally depressible member of the switch and switches it on. Switching on the switch not only opens the container outlet opening and moves the peeling rollers together, it also acts on the pneumatic cylinder with air pressure so that the rod is pushed down against the spring force. The end of the piston rod thus has a lower active position or presses the switch. If the container lifts again due to a lack of supply of goods, the end of the piston rod loses its effect on the switch only when the container has raised the distance that is equal to the extension length of the piston rod.
  • the parts which were referred to above as interaction members are formed on the one hand by the lower end of the piston rod and on the other hand by the depressible member of the switch.
  • the rubber roller peeler comprises a formwork roller 1 mounted on the housing and a peeling roller 3 mounted on a rocker 2 approximately horizontally towards and away from the roller 1.
  • the rocker 2 can be moved by means of a pneumatic cylinder 4.
  • the application of the cylinder 4 can thus on the one hand serve to generate the required S chäldrucks in the roll gap and on the other hand to the moving apart of the peeling rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
EP84107719A 1983-07-11 1984-07-03 Machine à décortiquer le grain à l'aide de rouleaux en caoutchouc Expired EP0131844B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838319935U DE8319935U1 (de) 1983-07-11 1983-07-11 Maschine zum schaelen von koernerfruechten mittels gummischaelwalzen
DE8319935U 1983-07-11

Publications (2)

Publication Number Publication Date
EP0131844A1 true EP0131844A1 (fr) 1985-01-23
EP0131844B1 EP0131844B1 (fr) 1986-11-26

Family

ID=6755045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107719A Expired EP0131844B1 (fr) 1983-07-11 1984-07-03 Machine à décortiquer le grain à l'aide de rouleaux en caoutchouc

Country Status (3)

Country Link
US (1) US4528901A (fr)
EP (1) EP0131844B1 (fr)
DE (2) DE8319935U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628807A (en) * 1984-01-30 1986-12-16 Mantis ULV - Spruhgerate GmbH Device for the wet treating of seed material
DE3521541A1 (de) * 1985-06-15 1986-12-18 Gebrüder Bühler AG, Uzwil Verfahren zum einstellen des walzenabstandes und vorrichtung zur durchfuehrung des verfahrens
EP0408491A1 (fr) * 1989-07-12 1991-01-16 Maschinenfabrik Rieter Ag Procédé et appareil pour éliminer les déchets dans une machine de nettoyage des fibres
EP1084750A1 (fr) 1999-09-13 2001-03-21 F.H. Schule Mühlenbau GmbH Appareil décorticeur de graines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE510768C (de) * 1928-03-06 1930-10-23 Karl Albert Speisevorrichtung fuer Muehlen, bei denen das Mahlgut unter Druck eingefuehrt wird
DE1517840A1 (de) * 1966-04-04 1970-01-22 Lenz Conrad Einrichtung zur Gewinnung von Malzschrot
US3857333A (en) * 1973-04-05 1974-12-31 T Satake Huller
US4295614A (en) * 1979-10-15 1981-10-20 Bond Iii Ned J Pneumatically operated grain handling apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US294418A (en) * 1884-03-04 Eollee mill
US2174843A (en) * 1936-12-18 1939-10-03 Firm Gebruder Buhler Roller mill having feed controlled grinding rollers
GB2065086B (en) * 1979-12-13 1984-04-26 Buehler Miag Gmbh Feed mechanism for rice peeling machines or other cereal processing machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE510768C (de) * 1928-03-06 1930-10-23 Karl Albert Speisevorrichtung fuer Muehlen, bei denen das Mahlgut unter Druck eingefuehrt wird
DE1517840A1 (de) * 1966-04-04 1970-01-22 Lenz Conrad Einrichtung zur Gewinnung von Malzschrot
US3857333A (en) * 1973-04-05 1974-12-31 T Satake Huller
US4295614A (en) * 1979-10-15 1981-10-20 Bond Iii Ned J Pneumatically operated grain handling apparatus

Also Published As

Publication number Publication date
US4528901A (en) 1985-07-16
DE8319935U1 (de) 1984-03-08
EP0131844B1 (fr) 1986-11-26
DE3461426D1 (en) 1987-01-15

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