DE559961C - Control for hydraulic belt vulcanizing presses - Google Patents

Control for hydraulic belt vulcanizing presses

Info

Publication number
DE559961C
DE559961C DES98087D DES0098087D DE559961C DE 559961 C DE559961 C DE 559961C DE S98087 D DES98087 D DE S98087D DE S0098087 D DES0098087 D DE S0098087D DE 559961 C DE559961 C DE 559961C
Authority
DE
Germany
Prior art keywords
cylinders
control
press
belt vulcanizing
accumulator
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
Application number
DES98087D
Other languages
German (de)
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.)
Siempelkamp Giesserei KG
Original Assignee
Siempelkamp Giesserei KG
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 Siempelkamp Giesserei KG filed Critical Siempelkamp Giesserei KG
Priority to DES98087D priority Critical patent/DE559961C/en
Application granted granted Critical
Publication of DE559961C publication Critical patent/DE559961C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00Producing belts or bands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/36Moulds for making articles of definite length, i.e. discrete articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B1/00Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/34Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/163Control arrangements for fluid-driven presses for accumulator-driven presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/20Opening, closing or clamping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/52Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material

Description

Steuerung für hydraulische Riemen-Vulkanisierpressen Bei Riemen-Vulkanisierpressen sind gewöhnlich Klemm- und Streckvorrichtungen angebracht, welche den Riemen an beiden Enden der Presse einklemmen und um ein gewisses Maß strecken und während der für die Vulkanisation erforderlichen Pressung gestreckt halten. Diese Klemm- und Streckvorrichtungen werden häufig hydraulisch betrieben. Bei Riemen-Vulkanisierpressen mit direktem Pufnpenantrieb müssen die folgenden hydraulischen Zylinder in der angegebenen Reihenfolge durch die Pumpe gespeist werden t. Klemmzylinder an beiden Enden der Presse, z. Streckzylinder an einer Pre-ssenseite, 3. Hebezylinder zum Schließen der Presse, .1 .. Preßzylinder zur Ausübung der Pressung.Control for hydraulic belt vulcanizing presses For belt vulcanizing presses Clamping and stretching devices are usually attached to the belt pinch both ends of the press and stretch to some extent and while hold stretched to the pressure required for vulcanization. This clamping and stretching devices are often operated hydraulically. For belt vulcanizing presses with direct puff drive must have the following hydraulic cylinders in the specified Sequence to be fed by the pump t. Clamp cylinder at both ends of the Press, e.g. Stretching cylinder on one side of the press, 3rd lifting cylinder for closing the press, .1 .. press cylinder for exercising the pressing.

Der Preßdruck in den Klemmzylindern muß aufrechterhalten werden, während die weiteren Zylinder unter Druck gesetzt werden. Es ist bekannt, für die Aufrechterhaltung des Druckes Hilfsakkumulatoren zu verwenden, die mit den hydraulischen Zylindern in direkter Verbindung stehen. Auch sind Umschaltapparate bekannt, die durch ein Gestänge vom Akkumulator so gesteuert werden, daß bei höchstem Akkumulatorstand das Umschaltventil geöffnet wird, wodurch dem von der Pumpe geförderten Wasser ein Auslauf ins Freie geöffnet wird. Auch sind Umschaltvorrichtungen bekannt, die durch einen Akkumulator betätigt werden und das von der Pumpe geförderte Wasser einem zweiten Akkumulator zuleiten.The pressing pressure in the clamping cylinders must be maintained while the other cylinders are pressurized. It's known for maintaining of pressure to use auxiliary accumulators connected to the hydraulic cylinders are in direct connection. Switching devices are also known by a Linkage can be controlled by the accumulator so that at the highest accumulator level the switching valve is opened, whereby the water delivered by the pump enters The outlet is opened to the outside. Switching devices are also known by an accumulator can be operated and the water delivered by the pump to a to the second accumulator.

Die Erfindung besteht darin, daß an Riemen-Vulkanisierpressen ein an sich bekannter Hilfsakkumulator und Umschaltapparate in der Weise angeordnet werden, daß das von der Pumpe geförderte Wasser den vorerwähnten Zvlindern in der angegebenen Reihenfolge selbsttätig zugeführt wird.The invention consists in a belt vulcanizing press known auxiliary accumulator and switching devices arranged in this way be that the pumped water the aforementioned Zvlimin in the specified sequence is fed automatically.

In der .beiliegenden Abbildung ist eine Riemen-Vulkanisierpresse dargestellt, in der zwischen dem Oberholm t und dem Preßtisch in ein Gummiriemen vulkanisiert werden soll. Mit n sind Hebezylinder bezeichnet, welche die Leerarbeit ausführen, also den Preßtisch in bis zur Berührung mit dem Oberholm L anheben: Mit o sind die Preßzylinder bezeichnet, welche den Druck auf den Gummiriemen ausüben sollen. Ferner sind Klemmzylinder a und a1 vorgesehen, welche den Riemen auf beiden Seiten der Presse festklemmen, und ferner Streckzylinder b, welche die Klemmvorrichtung a1 verschieben und dadurch eine Streckung des Riemens erzielen. Die Klemmzylinder d und at sind durch die Leitung c in direkter Verbindung mit dem Hilfsakkumulator d. An dem Akkumulator d sind zwei Umschaltvorrichtungen vorgesehen, enthaltend die Rückschlagventile f und f , und die Umschaltventile lz und lal. Die Umschaltventile können durch die Gestänge g und g1 gesteuert werden.In the accompanying figure, a belt vulcanizing press is shown, in which vulcanization is to take place in a rubber belt between the upper beam t and the press table. Lifting cylinders are designated with n, which carry out the idle work, that is to say lift the press table up to the point of contact with the upper beam L: The compression cylinders, which are supposed to exert the pressure on the rubber belt, are designated with o. Furthermore, clamping cylinders a and a1 are provided, which clamp the belt on both sides of the press, and also stretching cylinders b, which move the clamping device a1 and thereby achieve a stretching of the belt. The clamping cylinders d and at are in direct connection with the auxiliary accumulator d through the line c. Two switching devices are provided on the accumulator d , containing the check valves f and f , and the switching valves lz and lal. The switching valves can be controlled by the linkage g and g1.

Die- Arbeitsweise ist die folgende: Die Pumpe e fördert zunächst Druckwasser durch die Rückschlagventile f und f1 und die Rohrleitung c nach den Klemmzylindern a und a1. Nachdem diese Zylinder gefüllt sind, steigt der Hilfsakkumulator d und öffnet zunächst durch die Rolle p das Umschaltventil h. Nunmehr kann das von der Pumpe geförderte Wasser durch das Rückschlagventil f, und das Umschaltventil 1a nach dem Streckzylinder b gehen, während das in den Klemmzvlindern a und a1 und im d eingeschlossene Wasser durch das sich schließende Rückschlagventil f abgeschlossen wird. Sobald der Streckzylinder b gefüllt ist, geht das von der Pumpe gelieferte Wasser wieder durch die Rückschlagventile f1 und f nach dem Hilfsakkumulator d. Dieser hebt sich um ein weiteres Stück und öffnet durch das Gestänge g1 das Umschaltventil hl. Nunmehr kann das von der Pumpe gelieferte Wasser durch das Umschaltventilkl zu den Hebezylindern n treten, während das in den Zylindern a, a1, b und im Akkumulator d befindliche Wasser durch die Rückschlagventile f und f1 zurückgehalten wird. Nachdem die Hilfszylinder n ihre Arbeit ausgeführt haben, also die Presse geschlossen haben, kann das von der Pumpe e- geförderte Druckwasser durch Öffnen des Ventils q den Preßzylindern o zugeführt werden, welche die Pressung ausführen. y ist ein Füllventil, durch das während des Schließens der Presse durch die 'Hebezylinder n druckloses Wasser von dem Behälter s nach den PreBzylindern o geführt wird, um diese zu füllen. t, u und v sind Auslaßventile, die nach der Pressung geöffnet werden und das in den Zylindern a, a1, b, ia und o befindliche Wasser zu dem Rücklaufbehälter s zurücktreten lassen.The mode of operation is as follows: The pump e first delivers pressurized water through the check valves f and f1 and the pipeline c to the clamping cylinders a and a1. After these cylinders are filled, the auxiliary accumulator d rises and initially opens the switching valve h through the roller p. The water delivered by the pump can now go through the check valve f and the switching valve 1a to the stretching cylinder b , while the water enclosed in the clamping valves a and a1 and in d is closed by the closing check valve f. As soon as the stretching cylinder b is filled, the water supplied by the pump again goes through the check valves f1 and f to the auxiliary accumulator d. This rises a further piece and opens the switching valve hl through the linkage g1. The water supplied by the pump can now pass through the switching valve kl to the lifting cylinders n, while the water in the cylinders a, a1, b and in the accumulator d is retained by the check valves f and f1. After the auxiliary cylinders n have carried out their work, that is to say have closed the press, the pressurized water delivered by the pump e can be fed to the press cylinders o, which carry out the pressing, by opening the valve q. y is a filling valve through which, during the closing of the press by the lifting cylinder n, pressureless water is led from the container s to the pressing cylinders o in order to fill them. t, u and v are outlet valves which are opened after pressing and allow the water in cylinders a, a1, b, ia and o to return to the return tank s.

Claims (1)

PATENTANSPRUCH: Steuerung für hydraulische Riemen-Vulkanisierpressen mit direktem Pumpenantrieb und mit mehreren Zylindern für die Klemm- und Streckvorrichtung, von denen einer mit einem Hilfsakkumulator in Verbindung steht, gekennzeichnet durch mehrere an sich bekannte Umschaltventile, die nacheinander durch den steigenden Hilfsakkumulator geöffnet werden und nacheinander den Druckwasserzutritt zu den übrigen Zylindern freigeben. PATENT CLAIM: Control for hydraulic belt vulcanizing presses with direct pump drive and with several cylinders for the clamping and stretching device, one of which is connected to an auxiliary accumulator, characterized by several known switching valves, which are opened one after the other by the rising auxiliary accumulator and one after the other release the pressurized water access to the other cylinders.
DES98087D 1931-04-18 1931-04-18 Control for hydraulic belt vulcanizing presses Expired DE559961C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES98087D DE559961C (en) 1931-04-18 1931-04-18 Control for hydraulic belt vulcanizing presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES98087D DE559961C (en) 1931-04-18 1931-04-18 Control for hydraulic belt vulcanizing presses

Publications (1)

Publication Number Publication Date
DE559961C true DE559961C (en) 1932-09-26

Family

ID=7521214

Family Applications (1)

Application Number Title Priority Date Filing Date
DES98087D Expired DE559961C (en) 1931-04-18 1931-04-18 Control for hydraulic belt vulcanizing presses

Country Status (1)

Country Link
DE (1) DE559961C (en)

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