DE1584672B2

DE1584672B2 - DEVICE FOR MONITORING AND / OR REGULATING THE THICKNESS OF BODIES PRODUCED BY A PARAGRAPHIC EXTRUSION PRESS

Info

Publication number: DE1584672B2
Application number: DE19661584672
Authority: DE
Inventors: Albert 5020 Frechen Vogel Rolf 5036 Benenrath Zimmermann
Original assignee: Rheinische Braunkohlenwerke AG
Current assignee: Rheinbraun AG
Priority date: 1966-06-29
Filing date: 1966-06-29
Publication date: 1973-03-15
Also published as: DE1584672C3; DE1584672A1

Description

3 43 4

In der Zeichnung ist als Ausführungsbeispiel der als Regler ausgebildet und gibt bei Über- oderIn the drawing, the embodiment is designed as a controller and gives over or over

Erfindung eine Brikettpresse mit automatischer Stein- Unterschreiten eines einstellbaren Bereiches Signale,Invention of a briquette press with automatic stone signals falling below an adjustable range,

Stärkeregulierung im Schema dargestellt. die zur Verstellung der Kohlezuteilung verwendetStrength regulation shown in the diagram. used to adjust the coal allocation

Die Zufuhr der in der Presse 10 zu verarbeitenden werden. Das Relais 22 soll die Möglichkeit geben,The supply to be processed in the press 10. The relay 22 should give the possibility

Kohle erfolgt durch einen Kanal 11, in dem ein 5 die Länge der Verstellimpulse, die auf einen Stell-Coal takes place through a channel 11, in which a 5 determines the length of the adjustment pulses that are

Zuteiler 12 angeordnet ist. Die Bildung der einzelnen motor 23 einwirken, zu variieren. Der Stellmotor 23Distributor 12 is arranged. The formation of the individual motor 23 act to vary. The servomotor 23

Briketts 13, die die Presse in Gestalt eines Stranges steuert eine Klappe 24, von deren Lage die MengeBriquettes 13, which control the press in the form of a strand, a flap 24, the position of which determines the amount

14 verlassen, geschieht durch einen Kolben 15, der der jeweils zugeführten Kohle abhängig ist.Leave 14, is done by a piston 15, which is dependent on the coal supplied.

über einen Kreuzkopf 16 und ein Schwungrad an- Die Vorrichtung gemäß der Erfindung arbeitet so,via a cross head 16 and a flywheel to- The device according to the invention works so

getrieben wird. io daß zunächst die Stärke eines jeden einzelnenis driven. io that first of all the strength of each individual

Der absatzweise durch den Kolben 15 unter Briketts 13 erfaßt wird. Das ergibt sich zwangläufig gleichzeitger Bildung jeweils eines neuen Briketts 13 aus der Tatsache, daß der durch den Generator 18 vorgeschobene Strang 14 treibt ein Reibrad 17 an. auf die Regelvorrichtung 20,21 gegebene Spannungs-Dadurch wird der Läufer eines Generators 18 in stoß in jedem Fall dem Hub der Presse und damit Drehung versetzt, wobei das Ausmaß der Drehung 15 der Stärke des jeweils hergestellten Briketts prodes Läufers und damit der dadurch erzeugte Span- portional ist. Anschließend an die Feststellung der nungsstoß von dem Vorschub des Stranges 14 und Stärke eines jeden Einzelsteines besteht dann die damit von der Stärke des jeweils neu gebildeten Möglichkeit, einen Mittelwert aus mehreren aufBriketts abhängig ist. Bei Verwendung eines Wechsel- einanderfolgenden Messungen zu bilden.
Stromgenerators 18 werden die Spannungsstöße durch 20 Die Zeichnung läßt erkennen, daß der Kreuzkopf einen Gleichrichter 19 gleichgerichtet. Die gleich- 16 der Presse 10 über eine Schwinge einen Generator gerichteten Spannungsstöße werden einem Meßgerät 25 antreibt. Die durch diesen Generator erzeugte 20 aufgegeben, dem zur Beseitigung der Zeiger- Spannung wird durch ein geeignetes Glied 26 gleichpendelung ein z. B. als Stahl-Nickel-Zelle ausge- gerichtet und auf den Meßkreis 18 bis 20 gegeben, bildeter Kondensator 21 vorgeschaltet ist. Dieser 25 Diese Anordnung hat den Zweck, irgendwelche Kondensator bewirkt, daß mehrere Spannungsstöße Unterschiede in der Vorschubgeschwindigkeit des zu einer kontinuierlichen mittleren Regelspannung Stranges 14, die auf den Antrieb der Presse 10 zuvergleichmäßigt werden. Das Meßinstrument 20 ist rückgehen, zu kompensieren.Which is detected intermittently by the piston 15 under briquettes 13. This results inevitably at the same time as a new briquette 13 is formed from the fact that the strand 14 advanced by the generator 18 drives a friction wheel 17. The voltage applied to the regulating device 20,21 - As a result, the rotor of a generator 18 is set in abutment in each case with the stroke of the press and thus with rotation, the extent of the rotation 15 being the strength of the briquette produced in each case prodes the rotor and thus the chip generated thereby - is proportional. Subsequent to the determination of the thrust of the advance of the strand 14 and the thickness of each individual brick, there is then the possibility of an average value from several briquettes depending on the strength of the newly formed in each case. When using an alternation to form successive measurements.
Current generator 18, the voltage surges through 20 The drawing shows that the crosshead rectifies a rectifier 19. The voltage surges directed in the same way as 16 of the press 10 via a rocker arm of a generator are driven by a measuring device 25. The generated by this generator 20 abandoned, which to eliminate the pointer voltage is equal to a pendulum by a suitable member 26 a z. B. aligned as a steel-nickel cell and applied to the measuring circuit 18 to 20, formed capacitor 21 is connected upstream. This arrangement has the purpose of causing any capacitor that several voltage surges differences in the feed speed of the continuous average control voltage strand 14, which are evened out on the drive of the press 10. The measuring instrument 20 is to go back to compensate.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 ... summarized in order to determine an average value. The disadvantage of the known device is that for converting the

1. Device for monitoring and / or voltage in digital pulses an electronic Rules of the strength of means of a paragraph 5 additional part must be provided that the device working extrusion press made bodies, complicated and also more expensive. In addition z. B. briquettes, with one through the strand is missing due to the aforementioned formation of one driven measuring wheel that operates a generator where the drawing produced by this generator between press stroke and quantity control, Voltage displayed over a measuring circuit and / io so that the latter does not have the desired accuracy or for. the quantity control of the supply of the. Furthermore, there is no possibility Raw material is used, thereby indicating any changes in the feed rate, that an instrument (20) for the speed of the strand, which is on the extruder itself the detection of the voltage time course each go back in the monitoring and / or Hubes, which a display device and / or a 15 control system must be taken into account.

Volume regulator is assigned, as well as a through the The invention is based on the object of a Extrusion press (10) 'äntreibbafer generator (25) device of the type described above is provided are and that generated by the latter, that a more precise regulation by Voltage can be looped into the measuring circuit. faster response of the regulating organs and through

2. Device according to claim 1, characterized in that there is a compensation for any changes in the pre-characterization, that the successive thrust speed of the strand is possible. Voltage surges to a continuously mean At the same time, the device should in its construction Control voltage can be evened out. be simpler and therefore less prone to failure.

3. Device according to claim 1 or 2, that the invention proposes to solve this problem characterized in that the lower part of the 25 before that an instrument for the detection of the Measuring range is suppressed. Voltage-time curve of each stroke to which a display

4. Device according to claim 1, characterized in that the device is assigned and / or a volume regulator is assigned, that the genera acting on the flow regulator like a genera that can be driven by the extruder Adjustment pulses are provided by a relay (22) gate and those generated by the latter are variable in terms of their length. 30 voltage can be looped into the measuring circuit.

5. Device according to claim 2, characterized in that the driven by the strand "indicates that between'Generator (18) and generator supplied voltage is immediately above

Display or control instrument (20) a condenser, the time is measured and for display or evaluation

is switched on (21). used. Every single stroke is recorded and

6. Device according to claim 5, characterized in 35 evaluated so that after each stroke an adjustment indicates that the condenser (21) is used as a gas flow control in the required dense battery cell is formed. Direction takes place. This also applies if according to

7. Device according to one of the preceding a further proposal of the invention which is based on claims characterized in that in the successive voltage surges to a con-measuring circuit (18, 20) equalize a DC voltage source in 4 ° continuously average control voltage Is connected in series. as this measure only serves to

8. Device according to one of the preceding abrupt influences on the quantity control Claims, characterized in that avoid that. In addition, the lower part of the Measuring instrument (20) is designed as a controller. Measuring range - z. B. by a series

9. Device according to claim 1, characterized in 45 switched DC voltage source - suppressed works, that of the extruder (10) the. The driven ones acting on the flow regulator and with the measuring circuit (18, 20) control pulses can be controlled by a relay with respect to their linked generator (25) can be varied by the crosshead length.

(16) is driven. To achieve the continuous average control

50 voltage can be used between generator and display

or control instrument switched a capacitor

be. This is expediently designed as a gas-tight battery cell (button cell).

The invention relates to a device for over- The measuring instrument itself can wake up as a controller and / or rules of the strength of means 55 be formed, for example in such a way that in one A step-wise extrusion press set two mercury toggle switches Bodies, e.g. B. briquettes, with a built by the, which is exceeded or fallen below the String driven measuring wheel that give a generator set setpoint contact. Who drives out whereby the released contact generated by this generator controls the via a relay circuit Voltage displayed over a measuring circuit and / or 60 supply of the material to be processed, so for the quantity control of the supply of the starting material, for example in the production of lignite material is used. . briquettes the coal feed. In the case of too thin briquettes Such a device is already known in which the supply of coal is increased when the briquettes are too thick in which the voltage generated by the generator is reduced.

is next converted into digital impulses and 65 for a disturbance variable feedforward of the strand these Pulses for display and / or regulation press assigned, connected to the measuring circuit be used. In doing so, the multiple strands can be generated through the crosshead Strokes resulting measured values press driven.