DE1814883A1 - Device for the production of hollow bodies from thermoplastic material in the blow molding process - Google Patents
Device for the production of hollow bodies from thermoplastic material in the blow molding processInfo
- Publication number
- DE1814883A1 DE1814883A1 DE19681814883 DE1814883A DE1814883A1 DE 1814883 A1 DE1814883 A1 DE 1814883A1 DE 19681814883 DE19681814883 DE 19681814883 DE 1814883 A DE1814883 A DE 1814883A DE 1814883 A1 DE1814883 A1 DE 1814883A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- toggle lever
- cylinder
- molded parts
- frame
- 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.)
- Withdrawn
Links
- 238000000071 blow moulding Methods 0.000 title claims description 5
- 239000012815 thermoplastic material Substances 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000007664 blowing Methods 0.000 claims description 7
- 210000001331 nose Anatomy 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
- B29C49/5601—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means
- B29C49/5604—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means using spindle nut mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
- B29C49/4247—Means for deforming the parison prior to the blowing operation using spreading or extending means
- B29C49/425—Means for deforming the parison prior to the blowing operation using spreading or extending means rods or bars entering the preform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
- B29C2049/5636—Opening, closing or clamping means using closing means as clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
- B29C2049/566—Locking means
- B29C2049/5661—Mechanical
- B29C2049/5662—Latch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06905—Using combined techniques for making the preform
- B29C49/0691—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
- B29C49/28004—Blow-moulding apparatus designed for easy access by operator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
- B29C49/28006—Blow-moulding apparatus having special frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
- B29C49/5601—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means
- B29C49/5603—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means using toggle mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
- B29C49/561—Characterised by speed, e.g. variable opening closing speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/70—Removing or ejecting blown articles from the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Material im Blasverfahren.Device for producing hollow bodies from thermoplastic material in the blow molding process.
Zusatz zu P 16 04 591.3 (Hg. 376) Das Hauptpatent betrifft eine Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Material im Blasverfdhren, die eine zwei- oder mehrteilige Hohlform, deren Teile relativ gegeneinander bewegbar sind, eine Zuführung fr das Druckmittel in die Form und den darin befindlichen Vorformling hinein sowie Mittel für die Halterung und den Antrieb der Formteile und die Aufnahme der aus dem Blasdruck resultierenden Kräfte aufweist, wobei die Formteile oder sie tragende Grundkörper mit Räder, Rollen oder dgl. versehen sind. Das Neue gemäss dem Hauptpatentbesteht darin, dass die Formteile an einem geschlossenen Rahmen verfahrbar sind, wobei der Antrieb derselben über jeweils eine hydraulische Kolben-Zylinder-Anordnung erfolgt. Diese Anordnungen sind vorzugsweise an den Ober- und Unterträger mit ein ander verbindenden Stützholmen des Rahmens angebracht.Addition to P 16 04 591.3 (ed. 376) The main patent relates to a device for the production of hollow bodies from thermoplastic material in the blow molding process, a two-part or multi-part hollow mold, the parts of which can be moved relative to one another are, a feed for the pressure medium in the mold and the preform located therein inside and means for holding and driving the molded parts and the receptacle of the forces resulting from the blowing pressure, the molded parts or they load-bearing base body with wheels, rollers or the like. Are provided. The new according to The main patent is that the molded parts can be moved on a closed frame are, the drive of the same via a hydraulic piston-cylinder arrangement he follows. These arrangements are preferably on the upper and lower beams attached to the connecting support bars of the frame.
Die Erfindung bezweckt eine weitere Ausgestaltung des dem Hauptpatent zu Grunde liegenden Gedankens. Insbesondere soll erreicht werden, dass die aus dem Blasdruck resultierenden Kräfte, die mit zunehmenden Abmessungen des herzustellenden Hohlkörpers grösser werden, in einfacher Weise auf den Rahmen übertragen werden. Insbesondere soll die hydraulische Kolben-Zylinder-Anordnung entlastet werden. Zur Lösung dieser Aufgabe schlägt die Erfindung vor, dass die mit den Formteilen mittelbar oder unmittelbar verbundenen Elemente der Kolben-Zylinder-Anordnungen, vorzugsweise die Kolben, in der Schließstellung -der Hohlform verriegelbar sind und die Verriegelungen die aus dem Blasdruck resultierenden Kräfte unmittelbar auf den Rahmen übertragen.The invention aims at a further embodiment of the main patent underlying thought. In particular, it aims to achieve will, that the forces resulting from the blowing pressure increase with increasing dimensions of the hollow body to be produced become larger in a simple manner on the frame be transmitted. In particular, the hydraulic piston-cylinder arrangement be relieved. To solve this problem, the invention proposes that the elements of the piston-cylinder arrangements that are directly or indirectly connected to the molded parts, preferably the pistons, in the closed position of the hollow mold, can be locked and the locks directly apply the forces resulting from the blowing pressure transmit the frame.
Die Zylinder werden in diesem Fall von den aus dem Blasdruck resultierenden Kräften nicht beaufschlagt. Dies ist ein wesentlicher Vorteil, da davon auszugehen ist, dass diese Kräfte 100 t und mehr betragen können.The cylinders are in this case of the resulting from the blowing pressure Forces not applied. This is a major benefit as there to be assumed is that these forces can be 100 t and more.
Gemäss einem weiteren Vorschlag der Erfindung kann die Anordnung so getroffen sein, dass die bewegbaren Teile der Kolben-Zylinder-Anordnungen, vorzugsweise die Kolbenstangen, unter Zwischenschaltung eines Kniehebels in der Schliesslage gegenüber dem Rahmen abstützbar sind. Zweckmässig sind Mittel zur Sicherung des Kniehebels in seiner gestreckten Lage vorgesehen. Diese Mittel können z. B. darin bestehen, dass dem Kniehebel eine hydraulische oder pneumatische Kolben-Zylinder-Anordnung zugeordnet ist, die bei gestrecktem Kniehebel diesen in seiner Lage sichert. Die Kolbenstange dieser Kolben-Zylinder-Anordnung kann mit dem Xelenkpunkt des Kniehebels verbunden sein, wobei auf der anderen Seite des Kniehebels zweckmässig ein stationäres Widerlager vorgesehen ist.According to a further proposal of the invention, the arrangement can be as follows be taken that the movable parts of the piston-cylinder assemblies, preferably the piston rods, with the interposition of a toggle lever in the closed position can be supported against the frame. Means to secure the The knee lever is provided in its extended position. These funds can e.g. B. in it exist that the toggle lever has a hydraulic or pneumatic piston-cylinder arrangement is assigned, which secures this in its position when the knee lever is extended. the The piston rod of this piston-cylinder arrangement can be connected to the pivot point of the toggle lever be connected, being on the other side of the Lever appropriate a stationary abutment is provided.
In der Zeichnung ist als Ausftihrungsbeispiel der Erfindung eine Teilansicht einer Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Material im Blasverfahren dargestellt. Dieses Ausführungsbeispiel sieht die Verwendung einer zweigeteilten Hohlform vor, deren beide Formhälften 10 und 11 jeweils an einem Grundkörper 12 bzw. 13 lösbar angebracht sind. Bei der in der Zeichnung dargestellten Lage der Teile zueinander ist die Form 10, 11 geöffnet. Die Herstellung eines Hohlkörpers erfolgt in der üblichen Weise dadurch, dass zunächst ein Vorformling, vorzugsweise in Gestalt eines Schlauchabschnittes oder einer oder mehrerer Folien, in den Bereich zwischen beide Formhälften 10 und 11 gebracht wird,. Darauf werden diese gegeneinander gefahren, bis sie aneinander anliegen. Sie schliessen dabei ein Formnest ein, dessen beide Hälften mit 10a bzw. lla bezeichnet sind. Bei geschlossener Form entspricht dieses Formnest der Gestalt des hertustellenden Fertigerzeugnisses. Nach dem Schliessen der Form oder gegebenenfalls auch unmittelbar vorher wird ein Druckmittel, vorzugsweise Druckluft, in den Vorformling gegeben, so dass dieser bis zur Anlage an der Wandung des Formnestes aufgeweitet wird. Die Form wird alsdann zur Entnahme des fertigen Hohlkörprs geöffnet, nachdem dieser ausreichend abgekühlt und verfestigt ist. Das Druckmittel kann von oben und auch von unten zugeführt werden, und zwar vorzugsweise über eine Blasdüse, die zugleich auch als Kalibrierdorn verwendet werden kann. Es ist aber auch die Benutzung einer Nadel oder eines anderen geeigneten Mittels möglich.The drawing shows a partial view as an exemplary embodiment of the invention a device for producing hollow bodies from thermoplastic material shown in the blow molding process. This embodiment envisions the use of a two-part hollow mold, the two mold halves 10 and 11 each on a base body 12 and 13 are releasably attached. In the position shown in the drawing Parts to each other the mold 10, 11 is open. The manufacture of a hollow body takes place in the usual way in that first a preform, preferably in the form of a hose section or one or more foils into the area is brought between the two mold halves 10 and 11 ,. Then these become against each other driven until they touch each other. They include a mold cavity, its both halves are denoted by 10a and 11a. When the form is closed, it corresponds to this cavity of the shape of the finished product to be manufactured. After closing the form or, if necessary, immediately beforehand, a pressure medium is preferably used Compressed air, given into the preform, so that it rests against the wall of the mold cavity is expanded. The mold is then used to remove the finished Hollow bodies open after they have cooled down sufficiently and solidified. That Pressure medium can be supplied from above and also from below, preferably via a blower nozzle, which can also be used as a calibration mandrel. It but is also the use of a Needle or another suitable one Possible by means of.
Die Hin - und Herbewegung der beiden Grundkörper 12 bzw. 13 mit den beiden Formhälften 10 und 11 zum Zweck des Schliessens und Öffnens der Form wird durch hydraulische Zylinder bewirkt, von denen in der Zeichnung nur der rechte Zylinder 15 dargestellt.The back and forth movement of the two base bodies 12 and 13 with the two mold halves 10 and 11 for the purpose of closing and opening the mold effected by hydraulic cylinders, of which only the right cylinder in the drawing 15 shown.
Dasgleiche gilt auch für die übrigen, noch zu erörternden Teile, bei denen immer davon auszugehen ist, dass sie auch in gleicher Weise der Formhälfte 10 bzw. dem Grundkörper 12 zugeordnet sind.The same applies to the remaining parts to be discussed at which can always be assumed that they are also in the same way the mold half 10 or the base body 12 are assigned.
Die Kolbenstange 16 und der im Zylinder 15 geführte Kolben ist mit dem Grundkörper 13 verbunden. Der Zylinder 15 wird von den senkrechten Holm 19 eines rechteckigen Rahmens getragen, der durch zwei querträger 20 und 21 sowie einem weiteren, in der Zeichnung nicht dargestellten Holm vervollständigt wird. Der Grundkörper 13 trägt oberseitig plattenartige Fortsätze 28, die mit Rollen 30 versehen sind. Diese laufen auf der oberen Begrenzungsfläche 31 des oberen Uuerträgers 20. Die Formhälften 10 und 11 sowie deren Grundkörper 12 und 13 sind somit hängend am oberen Querträger 20 angeordnet.The piston rod 16 and the piston guided in the cylinder 15 are with connected to the base body 13. The cylinder 15 is one of the vertical spars 19 rectangular frame supported by two cross members 20 and 21 as well as another, is completed in the drawing spar not shown. The basic body 13 carries plate-like extensions 28 on the top, which are provided with rollers 30. These run on the upper boundary surface 31 of the upper Uuerträgers 20. Die Mold halves 10 and 11 and their base bodies 12 and 13 are thus hanging on the upper Cross member 20 is arranged.
Bei der vorbeschriebenen husgeataltung der Vorrichtung werden die aus dem 81ausdruck resultierenden Kräfte durch den Rahmen aufgenommen, der von den beiden Querträgern 20 und 21 und den beiden senkrechten Holmen gebildet wird, von denen in der Zeichnung der rechte Holm 19 dargestellt ist. Die geschlossene Rahmenkonstruktion gibt dabei die Möglichkeit, ohne besondere konstruktiven Schwierigkeiten auch sehr grosse Kräfte zu beherrschen, die z. B. bei der Fertigung von Grossbehältern auftreten können.In the above-described Husgeataltung the device are Forces resulting from the expression are absorbed by the frame, which is supported by the two cross members 20 and 21 and the two vertical spars is formed by which in the drawing the right spar 19 is shown. The closed frame construction gives the possibility without special constructive trouble to master also very large forces, the z. B. in the production of large containers may occur.
Um den Zylinder 15 und die ihm zugeordneten hydraulischen Einrichtungen von diesen Kräften zu entlasten - dasgleiche gilt entsprechend auch für den in der Zeichnung nicht dargestellten, der linken Formhälfte 10 zugeordneten Zylinder -, ist die Kolbenstange 16 des im Zylinder 15 geführten Kolbens nach hinten verlängert. Das an der dem Grundkörper 13 abgekehrten Seite aus dem Zylinder 15 heraustretende Ende 60 der Kolbenstange 16 ist dabei mit einem Kniehebel 61 versehen, dessen einer Arm 62 sich am senkrechten Holm 19 abstützt und dessen anderer Arm 63 mit dem hinteren Ende 60 der Kolbenstange verbunden ist, und zwar jeweils unter Zwischenschaltung von Gelenken 64 bzw. 65, die eine Schwenkbewegung der beiden Arme 62 und 63 gegenüber den Teilen 19 und 60 zulassen.About the cylinder 15 and its associated hydraulic devices to relieve of these forces - the same applies accordingly to the in the Drawing not shown, the left mold half 10 associated cylinder -, the piston rod 16 of the piston guided in the cylinder 15 is extended to the rear. That protruding from the cylinder 15 on the side facing away from the base body 13 The end 60 of the piston rod 16 is provided with a toggle lever 61, one of which Arm 62 is supported on the vertical spar 19 and its other arm 63 with the rear one End 60 of the piston rod is connected, in each case with the interposition of joints 64 and 65, which pivot movement of the two arms 62 and 63 opposite allow parts 19 and 60.
In der Zeichnung ist, wie bereits erwähnt, die Hohlform 10, 11 in ihrer geöffneten Lage dargestellt. Dabei sind die beiden Arme 62 und 63 nach oben verschwenkt, so dass die beiden Gelenkpunkte 64 und 65 etwa ihre kürzeste Entfernung voneinander aufweisen. An dem die beiden Arme 62 und 63 miteinander verbindenden Gelenkpunkt 66 greift die Kolbenstange 67 eines in einem Zylinder 68 geführten Kolbens an. Dieser Zylinder 68 wird vom oberen Querträger 20 getragen.In the drawing, as already mentioned, the hollow form 10, 11 in their open position. The two arms 62 and 63 are at the top pivoted so that the two hinge points 64 and 65 are approximately their shortest distance have from each other. At the one connecting the two arms 62 and 63 with one another The pivot point 66 engages the piston rod 67 of a piston guided in a cylinder 68 at. This cylinder 68 is carried by the upper cross member 20.
Die Schliessbewegung der Hohlform, in deren Verlauf Formhälfte 11 und Grundkörper 13 in Richtung des Pfeiles 69 verschoben werden, hat zugleich eine Streckung des Kniehebels 61 zur Folge, in deren Verlauf das Kniegelenk 66 unter gleichzeitiger Mitnahme der Kolbenstange 67 sich nach unten beWgt und der Abstand der beiden Gelenkpunkte 64 und 65 sich vergrössert, bis die beiden Arme 62 und 63 eine gestreckte Lage einnehmen, in welcher sie mit der Kolbenstange 16 bzw' deren Verlängerung 60 fluchten.The closing movement of the hollow mold, in the course of which mold half 11 and base body 13 are moved in the direction of arrow 69, at the same time has a Stretching of the toggle lever 61 result, in the course of which the knee joint 66 is below simultaneous entrainment of the piston rod 67 moves downwards and the distance of the two hinge points 64 and 65 increases until the two arms 62 and 63 assume an extended position in which they with the piston rod 16 or 'their Extension 60 align.
Der mittlere Gelenkpunkt 66 liegt dabei unterseitig auf einer stationären Stütze 70. Der im Zylinder 68 gebildete Kolben wird oberseitig mit einem Druckmittel beaufschlagt, so dass der Kniehebel 61 weder nach unten noch nach oben ausweichen kann.The middle hinge point 66 lies on the underside on a stationary one Support 70. The piston formed in the cylinder 68 is at the top with a pressure medium acted upon, so that the toggle lever 61 yields neither downwards nor upwards can.
Dabei ist zu berücksichtigen, dass der Zylinder 68 um die Achse E schwenkbar ist, also der seitlichen Verschiebung des Gelenkpunktes 66 folgen kann.It must be taken into account that the cylinder 68 is about the axis E. is pivotable, so the lateral displacement of the hinge point 66 can follow.
Bei geschlossener Form und gestrecktem Kniehebel 61 werden die aus dem Blasdruck resultierenden Kräfte unmitelbar über die Kolbenstange 16 und deren Verlängerung 60 sowie den Kniehebel 61 auf den zugehörigen senkrechten Holm 19 und somit auf den Rahmen übertragen. Der Vorteil dieser Anordnung besteht darin, dass die Hydraulik für den Antrieb der beiden Formhälften die aus dem Blasdruck resultierenden erheblichen Kräfte nicht auf zunehmen braucht. D. h., dass die. entsprechend schwächer augelegt sein kann.When the form is closed and the toggle lever 61 is extended, the the forces resulting from the blowing pressure directly via the piston rod 16 and its Extension 60 and the toggle lever 61 on the associated vertical spar 19 and thus transferred to the frame. The advantage of this arrangement is that the hydraulics for driving the two mold halves resulting from the blowing pressure does not need to take on considerable forces. That means that the. correspondingly weaker can be created.
Die vertikalen Holme 72 haben im wesentlichen nur die Funktion, die Zylinder 15 zu tragen.The vertical spars 72 have essentially only the function that Cylinder 15 to wear.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0060999 | 1966-12-23 | ||
GB57660/67A GB1200917A (en) | 1966-12-23 | 1967-12-19 | Blow moulding apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1814883A1 true DE1814883A1 (en) | 1969-07-10 |
Family
ID=25984343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681814883 Withdrawn DE1814883A1 (en) | 1966-12-23 | 1968-12-16 | Device for the production of hollow bodies from thermoplastic material in the blow molding process |
Country Status (2)
Country | Link |
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DE (1) | DE1814883A1 (en) |
GB (1) | GB1200917A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4344852A1 (en) | 2022-09-30 | 2024-04-03 | BEKUM Maschinenfabriken GmbH | Apparatus for manufacturing hollow bodies |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3101286C2 (en) * | 1981-01-16 | 1986-12-18 | Krupp Corpoplast Maschinenbau GmbH, 2000 Hamburg | Apparatus for blow molding a container from a preform |
DE19516125C1 (en) * | 1995-05-03 | 1996-06-05 | Battenfeld Fischer Blasform | Tool closure on plastics processing machine process equipment |
FR2986735B1 (en) * | 2012-02-09 | 2014-02-28 | Sidel Participations | DEVICE FOR BOXING A MOUTH BOTTOM OF A BASE OF A CONTAINER DURING THE SHEET |
CN103847092B (en) * | 2014-02-25 | 2016-02-17 | 江苏新美星包装机械股份有限公司 | A kind of bottle outlet guider of bottle blowing machine |
-
1967
- 1967-12-19 GB GB57660/67A patent/GB1200917A/en not_active Expired
-
1968
- 1968-12-16 DE DE19681814883 patent/DE1814883A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4344852A1 (en) | 2022-09-30 | 2024-04-03 | BEKUM Maschinenfabriken GmbH | Apparatus for manufacturing hollow bodies |
WO2024068807A1 (en) | 2022-09-30 | 2024-04-04 | Bekum Maschinenfabriken Gmbh | Device for producing hollow bodies |
Also Published As
Publication number | Publication date |
---|---|
GB1200917A (en) | 1970-08-05 |
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