CH340708A - Control device on hydraulic presses - Google Patents
Control device on hydraulic pressesInfo
- Publication number
- CH340708A CH340708A CH340708DA CH340708A CH 340708 A CH340708 A CH 340708A CH 340708D A CH340708D A CH 340708DA CH 340708 A CH340708 A CH 340708A
- Authority
- CH
- Switzerland
- Prior art keywords
- control device
- press
- valve
- bolt
- lever
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/90—Regeneration or reactivation
- B01J23/94—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the iron group metals or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/185—Phosphorus; Compounds thereof with iron group metals or platinum group metals
- B01J27/1853—Phosphorus; Compounds thereof with iron group metals or platinum group metals with iron, cobalt or nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/02—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon
- C07C1/04—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon from carbon monoxide with hydrogen
- C07C1/0425—Catalysts; their physical properties
- C07C1/0445—Preparation; Activation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/02—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon
- C07C1/04—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon from carbon monoxide with hydrogen
- C07C1/0425—Catalysts; their physical properties
- C07C1/045—Regeneration
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/02—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon
- C07C1/04—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon from carbon monoxide with hydrogen
- C07C1/0485—Set-up of reactors or accessories; Multi-step processes
- C07C1/049—Coupling of the reaction and regeneration of the catalyst
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/74—Iron group metals
- C07C2523/745—Iron
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Mechanically-Actuated Valves (AREA)
Description
Steuervorrichtung an hydraulischen Pressen Die vorliegende Erfindung bezieht sich auf eine Steuervorrichtung an hydraulischen Pressen zum selbsttätigen Ausschalten der Presse bei einer vorbe stimmten, einstellbaren Dicke des Arbeitsstückes: Die erfindungsgemässe Steuervorrichtung ist da durch gekennzeichnet, dass ein erster mit dem Presse kopf beweglicher Bolzen mit einem zweiten Bolzen zusammenwirkt, welcher zweite Bolzen bei erreichter vorbestimmter Dicke des Arbeitsstückes ein die Be wegung des Pressekopfes steuerndes Ventil beein flusst.
In der beiliegenden Zeichnung sind zwei Ausfüh rungsbeispiele des Erfindungsgegenstandes darge stellt. Es zeigen: Fig. 1 einen Aufriss einer mit dem ersten Bei spiel versehenen Presse, Fig. 2 einen Grundriss der Presse nach Fig. 1, Fig. 3 einen Schnitt durch das Steuerventil, Fig. 4 eine schematische Darstellung des An triebes der Scheiben, F!-. 5 schematisch das zweite Ausführungsbei spiel.
In der Zeichnung bezeichnet 1 den Kopf einer Presse, deren Tisch mit 2 und deren Gestell mit 3 bezeichnet sind. Der Arbeitshub des Pressekopfes 1 ist der von oben nach unten gerichtete Hub. Der be wegliche Tisch 2 weist zwei Konsolen 4 auf, in wel chen je ein Bolzen 5 mit einem verhältnismässig schweren Kopf 6 verschiebbar gelagert ist. Der Kopf 6 befindet sich über der Konsole 4. Das Gestell 3 der Presse weist zwei Konsolen 7 auf. In jeder dieser Konsolen 7 ist eine vertikale Spindel 9 gelagert, die eine horizontale Drehscheibe 8 trägt. Die Spindel 9 kann über ein Getriebe 10 gedreht werden.
Auf jeder Drehscheibe 8, 8' sind drei Bolzen 11, 12 und 13 verschiebbar gelagert, wobei die Scheiben 8 derart über die Getriebe 10 gedreht werden können, dass wahlweise jeder der Bolzen 11-l3 mit einem feder belasteten, in der betreffenden Konsole 7 gelagerten Bolzen 14 in Kontakt gebracht werden kann. Wenn ein Bolzen 14 nach unten gedrückt wird, so wird der zugehörige Hebel 15 bzw. 15' verschwenkt, der den Steuerungsmechanismus für den Hubweg des Presse kopfes betätigt. Da die Bolzen 11, 12 und 13 ver schiedener Länge sind, kann die Presse leicht und schnell für drei verschiedene Dicken dadurch einge stellt werden, dass der entsprechende Bolzen 11, 12 und 13 mit dem Bolzen 14 in Kontakt gebracht wird.
Die federbelasteten Bolzen 14 betätigen die Hebel 15, 15', die über Stangen 16, 16' die Hebel 17, 17' betätigen. Diese auf 16, 16' gelagerten Hebel sind auf dem ein Hilfsventil 19 betätigenden Doppel hebel 18 abgestützt. Dieses Hilfsventil 19 betätigt seinerseits ein nicht dargestelltes Steuerventil, das bei seiner Betätigung die Bewegungsrichtung des Pressekopfes 1 umkehrt.
Das Hilfsventil 19 (Fig. 3) weist einen Steuer druckeinlass 20 und einen Steuerdruckauslass 22 auf, zwischen welchen eine Spindel 21 derart angeord net ist, dass, wenn diese Spindel niedergedrückt wird, die Steuerflüssigkeit durch das Ventil 19 fliessen kann. Der Auslass 22 ist mit dem erwähnten Steuer ventil verbunden und verschiebt beispielsweise dessen Steuerschieber, so dass der Druckölzufluss zum Zy linder des Pressekopfes 1 umgekehrt wird und dieser nach aufwärts läuft.
Die Scheiben 8, 8' sind<B>-</B>mittels des aus Ritzeln und Zahnstangen bestehenden Getriebes 10 bzw. 10' antreibbar. Jede Zahnstange ist mittels hydraulischen Kolben und Zylindern 23, 24 bzw. 23', 24' betätigt, wobei die Steuerung ihrer Bewegung mittels eines Steuerventils 25 erfolgt (Fig. 4). Beim Pressen bewegt sich der Teil 2 nach ab wärts und presst das auf 3 aufliegende Werkstück.
Bei Erreichen der gewünschten Werkstückdicke be tätigen die Bolzen 5 die Bolzen 11 bzw. 12 bzw. 13 und 11' bzw. 12' bzw. 13'; wodurch über das Ventil 19 das Steuerventil betätigt wird und der Teil 2 nach oben läuft.
Die Dehnung des Presserahmens ist proportional zum im hydraulischen Pressezylinder herrschenden Druck, das heisst zur im Pressekopf ausgeübten Kraft. Wenn diese Dehnung des Rahmens kompensiert wer den muss, wird vorzugsweise eine Einrichtung gemäss Fig. 5 verwendet. Ein Hebel 26 ist zwischen dem Doppelhebel 18 und der Spindel 21 des Ventils 19 geschaltet. Das andere freie Ende des Hebels 26 ist zwischen einem Kolben 27, der in einem mit dem Pressezylinder über einen Einlass 28 verbundenen Zylinder verschiebbar angeordnet ist und dem freien Ende einer Blattfeder 29 angeordnet. Diese Blatt feder 29 ist auf einem Kolben 30 abgestützt, der sich in einem Zylinder 31 befindet, dessen Druck mittels eines Ventils 32 gesteuert wird.
Wenn mittels dieses Ventils 32 die Druckflüssigkeitszufuhr zum Zylinder 31 unterbrochen wird, so wird die Steuervorrichtung ausgeschaltet.
Die Feder 29 wird vom Kolben 27 nach unten gedrückt. Dieser Kolben ist aber dem im Presse zylinder herrschenden Druck ausgesetzt, so dass die von ihm ausgeübte Kraft proportional zur vom Pressekopf 1 ausgeübten Kraft ist. Wird nun die Feder 29 so bemessen, dass ihre Durchbiegung unter der Wirkung der Kraft des Kolbens 27 proportional zur Dehnung ist, die der Presserahmen unter der vom Pressekopf 1 ausgeübten Kraft erfährt, so wird mittels der Feder 29 die Dehnung des Presserahmens kompensiert, indem sich das freie Ende des Hebels 26 entsprechend der Dehnung des Presserahmens bzw. der Feder 29 in der Fig. 5 nach unten ver schiebt.
Das Ventil 19 wird dadurch entsprechend später geöffnet. Ungleichmässige Dehnung des Presse rahmens, die z. B. den Tisch 2 kippen oder in nicht parallele Lage in bezug auf den Kopf 1 brin gen, wird dadurch berücksichtigt, dass der Doppel hebel 18 um den Kopf der Spindel 21 kippen kann.
Control device on hydraulic presses The present invention relates to a control device on hydraulic presses for automatically switching off the press at a predetermined, adjustable thickness of the workpiece: The control device according to the invention is characterized in that a first bolt that is movable with the press head has a second Bolt cooperates, which second bolt influences a valve controlling the movement of the press head when the workpiece has reached a predetermined thickness.
In the accompanying drawings, two Ausfüh approximately examples of the subject invention are Darge provides. 1 shows an elevation of a press provided with the first example, FIG. 2 shows a floor plan of the press according to FIG. 1, FIG. 3 shows a section through the control valve, FIG. 4 shows a schematic representation of the drive on the disks, F! -. 5 schematically the second Ausführungsbei game.
In the drawing, 1 denotes the head of a press, the table of which is denoted by 2 and the frame by 3. The working stroke of the press head 1 is the stroke directed from top to bottom. The be movable table 2 has two consoles 4, in wel chen each a bolt 5 with a relatively heavy head 6 is slidably mounted. The head 6 is located above the console 4. The frame 3 of the press has two consoles 7. A vertical spindle 9, which carries a horizontal turntable 8, is mounted in each of these brackets 7. The spindle 9 can be rotated via a gear 10.
On each turntable 8, 8 'three bolts 11, 12 and 13 are slidably mounted, with the disks 8 being able to be rotated via the gears 10 in such a way that each of the bolts 11-13 is spring-loaded and mounted in the console 7 concerned Bolt 14 can be brought into contact. When a bolt 14 is pressed down, the associated lever 15 or 15 'is pivoted, which actuates the control mechanism for the stroke of the press head. Since the bolts 11, 12 and 13 are of different lengths, the press can be easily and quickly adjusted for three different thicknesses in that the corresponding bolt 11, 12 and 13 is brought into contact with the bolt 14.
The spring-loaded bolts 14 actuate the levers 15, 15 ', which actuate the levers 17, 17' via rods 16, 16 '. These levers mounted on 16, 16 'are supported on the double lever 18 which actuates an auxiliary valve 19. This auxiliary valve 19 in turn actuates a control valve (not shown) which, when actuated, reverses the direction of movement of the press head 1.
The auxiliary valve 19 (Fig. 3) has a control pressure inlet 20 and a control pressure outlet 22, between which a spindle 21 is angeord net such that, when this spindle is depressed, the control fluid can flow through the valve 19. The outlet 22 is connected to the mentioned control valve and moves, for example, its control slide, so that the pressure oil flow to the cylinder of the press head 1 is reversed and this runs upwards.
The disks 8, 8 'can be driven by means of the gear 10 or 10', which consists of pinions and racks. Each rack is actuated by means of hydraulic pistons and cylinders 23, 24 or 23 ', 24', the movement of which is controlled by means of a control valve 25 (FIG. 4). During pressing, part 2 moves downwards and presses the workpiece on 3.
When the desired workpiece thickness is reached, the bolts 5 actuate the bolts 11 or 12 or 13 and 11 'or 12' or 13 '; whereby the control valve is actuated via the valve 19 and the part 2 runs upwards.
The expansion of the press frame is proportional to the pressure prevailing in the hydraulic press cylinder, i.e. to the force exerted in the press head. If this expansion of the frame has to be compensated for, a device according to FIG. 5 is preferably used. A lever 26 is connected between the double lever 18 and the spindle 21 of the valve 19. The other free end of the lever 26 is arranged between a piston 27, which is arranged displaceably in a cylinder connected to the press cylinder via an inlet 28, and the free end of a leaf spring 29. This leaf spring 29 is supported on a piston 30 which is located in a cylinder 31, the pressure of which is controlled by means of a valve 32.
If the supply of pressure fluid to the cylinder 31 is interrupted by means of this valve 32, the control device is switched off.
The spring 29 is pressed down by the piston 27. However, this piston is exposed to the pressure prevailing in the press cylinder, so that the force exerted by it is proportional to the force exerted by the press head 1. If the spring 29 is now dimensioned so that its deflection under the action of the force of the piston 27 is proportional to the expansion that the press frame experiences under the force exerted by the press head 1, the expansion of the press frame is compensated for by means of the spring 29 by the free end of the lever 26 according to the expansion of the press frame or the spring 29 in FIG. 5 pushes down ver.
The valve 19 is opened accordingly later. Uneven expansion of the press frame, the z. B. tilt the table 2 or bring gene in a non-parallel position with respect to the head 1, is taken into account that the double lever 18 can tilt around the head of the spindle 21.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB23159/54A GB784992A (en) | 1954-08-10 | 1954-08-10 | Improvements in and relating to control mechanism for hydraulic presses |
Publications (1)
Publication Number | Publication Date |
---|---|
CH340708A true CH340708A (en) | 1959-08-31 |
Family
ID=10191115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH340708D CH340708A (en) | 1954-08-10 | 1955-08-10 | Control device on hydraulic presses |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT193722B (en) |
CH (1) | CH340708A (en) |
DE (1) | DE1177488B (en) |
FR (1) | FR1129707A (en) |
GB (1) | GB784992A (en) |
NL (1) | NL96263C (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2351872A (en) * | 1941-03-31 | 1944-06-20 | Parker Appliance Co | Hydraulic press |
US2569214A (en) * | 1948-05-08 | 1951-09-25 | Denison Eng Co | Hydraulic apparatus |
US2543759A (en) * | 1948-07-20 | 1951-03-06 | American Steel Foundries | Automatic press |
-
1954
- 1954-08-10 GB GB23159/54A patent/GB784992A/en not_active Expired
-
1955
- 1955-07-30 AT AT193722D patent/AT193722B/en active
- 1955-08-04 FR FR1129707D patent/FR1129707A/en not_active Expired
- 1955-08-05 DE DEE11105A patent/DE1177488B/en active Pending
- 1955-08-08 NL NL199541A patent/NL96263C/xx active
- 1955-08-10 CH CH340708D patent/CH340708A/en unknown
Also Published As
Publication number | Publication date |
---|---|
AT193722B (en) | 1957-12-10 |
NL96263C (en) | 1960-12-15 |
GB784992A (en) | 1957-10-23 |
DE1177488B (en) | 1964-09-03 |
FR1129707A (en) | 1957-01-24 |
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