EP3374105A1 - Vertical press for a casting machine, and casting machine - Google Patents
Vertical press for a casting machine, and casting machineInfo
- Publication number
- EP3374105A1 EP3374105A1 EP16793867.9A EP16793867A EP3374105A1 EP 3374105 A1 EP3374105 A1 EP 3374105A1 EP 16793867 A EP16793867 A EP 16793867A EP 3374105 A1 EP3374105 A1 EP 3374105A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- upper frame
- base plate
- mold
- press
- casting machine
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims 1
- 210000000078 claw Anatomy 0.000 description 13
- 238000001746 injection moulding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/12—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with vertical press motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/06—Burdening or relieving moulds
Definitions
- the present invention relates to a vertical press for a casting machine and casting machine, in particular a low-pressure casting machine with such a vertical press.
- Vertical presses for casting machines generally have a stationary base plate, a stationary upper frame and a movable mounting plate arranged therebetween.
- the base plate, the upper frame and the clamping plate are fixed or guided at their four corner regions in each case on a vertically arranged column.
- a mold is disposed between the base plate and the platen with a lower mold half of the mold attached to the base plate and an upper mold half attached to the platen.
- the maximum width of the molds is smaller than the distance between the two front pillars, so that the mold can be moved into the press and pulled out again.
- the presses are designed for a predetermined pressure which corresponds to the volume of a mold cavity provided in the mold.
- a predetermined pressure which corresponds to the volume of a mold cavity provided in the mold.
- the molds then have a length or width that does not fit through the front pillars. Such a mold can not then be used with such a press, although the pressure capacity of the press would be sufficient for the processing of the mold.
- DE 26 05 394 A1 discloses an injection molding machine with a horizontal press.
- This injection molding machine has at least one horizontally extending column on which can be pulled out.
- a stationary mold carrier plate and a movable mold carrier plate are provided, between which mold halves of a mold can be arranged and pressed together.
- In the movable mold carrier plate and in the stationary mold carrier plate are
- Clamping sleeves installed, through each of which extends one of the columns.
- the clamping jacks are hydraulically actuated and can clamp the columns in the respective support plate By alternately operating the clamping sleeves, a column can be moved and removed from the area between the stationary mold carrier plate and the movable mold carrier plate to easily exchange the mold halves can.
- EP 404 288 A2 discloses a similar poleulenzieh adopted for injection molding machines, which has a movable plate and two fixed plates, wherein on the movable plate, a fastening means in the form of a hydraulic see-see clamp is provided, with which a horizontal column is clamped. By a reciprocating movement of the movable plate and a corresponding actuation of the hydraulic clamp, the column can be moved in the horizontal direction.
- DE 10 2005 029 060 B3 shows a press for deburring and / or punching a workpiece. This press has only three columns. It is designed with a pivoting tool holder, which can be pivoted about one of the columns, so that larger tools can be easily replaced.
- DE 20 2012 001 185 U1 relates to a column guide frame for the construction of forming and stamping tools, in which the columns can be mounted in a mobile manner along T-slots.
- the invention has for its object to provide a vertical press for a casting machine and a corresponding casting machine, with which the Druck L. Press capacity of the press can be optimally used.
- a press according to the invention for a casting machine comprises a fixed base plate, a stationary upper frame and a movable platen, wherein at the corner portions of the plates and at the corner portions of the upper frame are arranged two front columns and two rear columns coupled to the movable platen by means of guides and the base plate and the fixed upper frame are fixed.
- the press is a vertical press, which means that the columns are arranged vertically.
- the press is characterized in that the front pillars are releasably fixed to the base plate and the upper frame and are movably arranged with respect to the base plate, the upper frame and the platen such that they at least partially out of the area between the base plate and the movable platen can be moved.
- the guides of the clamping plate for guiding the columns can be passage openings in the clamping plate. However, they can also be designed as arranged outside of the platen guide elements.
- Such guides may comprise a plurality of rollers which are rotatably mounted on a support fixed to the platen and bear against the columns, so that the platen can roll by means of the rollers on the columns.
- a lifting mechanism is arranged on the upper frame, to which the movable platen is coupled, so that the movable platen can be moved vertically.
- the movable platen preferably has fixing means with which the movable platen can be releasably fixed to the front pillars. This makes it possible that with the movement of the platen, the front pillars are taken and thus the vertical position of the front pillar. len is changeable.
- the fixators are typically jaws formed on the platen that enclose the front pillars.
- Such a lifting device may comprise one or more hydraulic cylinders, pneumatic cylinders or spindle drives. With such a separate lifting device, the front pillars can be raised and lowered very quickly.
- fixation devices can be designed as claws.
- fixing devices can also be designed as locking elements which, for example, have a locking slide which is retracted into a corresponding recess of the respective first column in order to fix it to the base plate or to the upper frame.
- a tensioning mechanism is disposed between the upper frame and the base plate adjacent to the rear pillars and to the one of the front pillars.
- This clamping mechanism is thus arranged outside of the area spanned by the movable platen.
- a tilting of the upper frame with respect to the base plate would have the disadvantage that the upper frame would tilt with respect to the front pillars and then they would not be movable.
- the clamping mechanism may comprise at least one hydraulic or pneumatic cylinder 30 or a spindle drive.
- the rear pillars may extend slightly above the upper frame, and stiffening means may be formed between the upper frame portion remote from the rear pillars and the upper pillar portion of the inner pillars. As a result, the arrangement of the upper frame is stiffened with respect to the rear pillars. This counteracts a tilting of the upper frame relative to the base plate.
- the stiffening device can age Native to the above-mentioned clamping mechanism or in combination may be provided.
- the movable platen is formed of a Aufspannrahmen and a pivotally mounted thereto pivot plate.
- a pivot joint between the chuck frame and the pivot plate is disposed in the area adjacent to the front pillars, so that the pivot plate is pivotable downwardly and forwardly with respect to the chuck frame.
- a casting machine according to the invention has a press as described above, wherein the area between the base plate and the movable platen for receiving a mold is formed.
- the casting machine is preferably a low-pressure casting machine.
- the press according to the invention has been intended and developed for casting machines. However, such a press can also be provided for other applications in which objects to be pressed between two press plates (here: base plate and movable platen) are to be arranged, which have a size which is greater than the distance between the two front pillars.
- two press plates here: base plate and movable platen
- the base plate and the clamping plate can also be designed as frame-like elements. It is essential that they are designed such that an object located therebetween can be acted upon by a desired pressing force. Whether the press force is transferred selectively or flat depends on the respective application.
- the invention will be explained in more detail by way of example with reference to the drawing.
- the drawing shows schematically simplified in:
- Figure 1 shows a first embodiment of a casting machine in perspective
- Figure 2 shows a second embodiment of a casting machine in perspective view
- Figure 3 shows a typical arrangement of several casting machines in a block diagram.
- a casting machine 15 has a horizontally arranged base plate 1, a top frame 2 and a movable platen 3 arranged therebetween. At the corner portions of the plates 1, 3 and the upper frame 2, two front pillars 4 and two rear pillars 5 are provided, which basically extend from the base plate 1 to the upper frame 2 and keep them at a distance.
- the base plate 1, the upper frame 2 and the movable clamping plate 3 are arranged parallel to one another and form a press.
- the press is a vertical press, that is, the columns 4, 5 are arranged vertically.
- the columns 4, 5 extend through corresponding passage openings in the movable platen 3 and serve to guide the movable plate 3, so that the movable plate 3 is always arranged parallel to the base plate 1 and the upper frame 2.
- the passage openings in the movable clamping plate 3 form guides for guiding the columns 4, 5 relative to the clamping plate 3.
- the base plate 2 and the movable platen 3 are formed as a plate-shaped member. However, they can also be designed as a frame-shaped frame. In the embodiment shown in Figure 1, the upper frame 2 is formed as a frame-shaped frame. However, the upper frame 2 can also be designed as a plate-shaped element.
- a lifting mechanism 6 is arranged on the upper frame 2.
- the lifting mechanism is a hydraulic cylinder in the present embodiment.
- the lifting mechanism 6 is coupled to a lifting rod 7 to the movable platen 3 and can adjust this in its vertical position. It may also be appropriate to provide a plurality of lifting mechanisms for moving the movable platen 3.
- the lifting mechanism 6 is arranged centrally on the upper frame 2. If a plurality of lifting mechanisms are provided, then these can be arranged on the edge regions of the upper frame 2.
- the front pillars 4 are designed to be vertically movable. They extend through passage openings in the movable platen 3 and in the upper frame 2 and are releasably fixable with their lower ends to the base plate 1.
- the baseplate te has for this purpose recesses 16, the form-fitting approximately the lower end portion of the front spars 4 can accommodate.
- locking means (not shown) are provided, which have a slider which can be inserted into a corresponding recess of the respective front pillar 4 in order to lock the front pillar to the base plate 1.
- claws 9, 17 are respectively adjacent to the through holes for the front pillars arranged, which surround the front pillars 4. With these claws 9, 17, the movable platen 3 and the upper frame 2 can be fixed to the front pillars 4. These claws 9, 17 thus constitute a fixing device for relatively fixing the front pillars 4 with respect to the movable platen 3 and the upper frame 2, respectively.
- the tensioning mechanism 10 comprises two hydraulic devices, each having a hydraulic cylinder 1 1 and a piston rod 12. At the top frame 2 and on the base plate 1 rearwardly projecting projections 13, 14 are formed, between which see the hydraulic devices extend.
- the rear side is the side of the casting machine 15, which is arranged adjacent to the rear pillars 5 and lies with respect to the rear pillars 5 on the side remote from the front pillars 4.
- rails 26 are provided, which extend from a front edge of the base plate 1 to a rear edge of the base plate 1. The rails 26 may also be extended forward beyond the front edge.
- the rails 26 serve to guide a carriage with which the molds 8 can be retracted or moved out into the press.
- the front pillars 4 are unlocked from the base plate 1.
- the claws 17 of the upper frame 2, which surround the front pillars 4, are released.
- the claws 9 of the movable platen 3 are not released.
- With the lifting mechanism. 6 the movable platen 3 is raised, thereby also moving the front columns 4 with the movable platen 3 upwards.
- the front pillars 4 are lifted from the base plate 1. If a lifting operation is sufficient to achieve a sufficient clearance between the lower end portion of the front pillars 4 and the base plate 1, then the mold 8 is driven into the space between the base plate 1 and the movable platen 3 on a carriage. If a lifting movement of the movable platen 3 is insufficient to make a sufficient distance between the base plate 1 and the lower end portion of the front pillars 4, then the front pillars 4 are first fixed to the claws 17 of the upper frame 2 and the jaws 9 of the movable ones Clamping plate 3 solved. The movable platen 3 can then be lowered again a piece.
- the claws 9 of the movable platen 3 are fixed and the claws 17 of the upper frame 2 are released.
- the front pillars can be lifted another piece. This lifting operation is repeated until there is a sufficient distance between the lower end portions of the front pillars 4 and the base plate 1. Then, in the space between the base plate 1 and the movable platen 3, the mold 8 are driven into it.
- the movable platen 3 is lowered onto the mold 8 and the mold 8 is fixed to the platen. The two mold halves of the mold are locked together. The movable platen 3 is raised again a piece, whereby the mold 8 is lifted from the car. The car is thus free and can be driven out of the casting machine 15 along the rails 26 out. Since the car is narrower than the distance of the front pillars 4, these need not be raised to remove the car from the caster.
- the base plate 1 can be provided with centering elements, so that the mold is automatically positioned correctly when lowered.
- centering elements are, for example, designed as sliding blocks. These centering elements or sliding blocks can also be provided in different arrangements on different base plates in order to exercise a coding function. This makes it possible to ensure that only one mold 8, which is also provided for this purpose, is inserted into a specific casting machine 15.
- the mold is fixed on the base plate and is thus available for casting operations.
- the removal of the mold 8 from the casting machine is the reverse of the insertion of the mold by first raised the mold, retracted a car, the mold is placed on the car and the front pillars are raised, then the car with the mold to drive the casting machine.
- molds 8 larger than the distance of the front pillars 4 can be used in the molding machine.
- the casting machine 15 according to the invention is therefore much more flexible with respect to the dies 8 to be used than conventional casting machines.
- the molds often weigh more than 10 t and can weigh up to 40 t.
- FIG. 3 schematically shows an arrangement of a plurality of casting machines 15, which are arranged along a conveying path 19.
- the casting machines 15 each have a fixed, non-variable location in the production facility and are connected to hydraulic lines, power lines and data lines.
- the juxtaposed casters 15 can only front, d. H. be loaded or unloaded from the conveyor 19, with molds 8.
- the molds 8 are conveyed on the conveyor 19 with a forklift or special transport vehicle. By raising the front pillars 4 of the casting machine 15, even with such an arrangement of several casting machines, these can be loaded and unloaded with arbitrarily long or wide molds 8.
- casting machines 15 there are also other arrangements of casting machines 15 in production plants in which the casting machines are loaded and unloaded from the side. In such production plants, the casting machines are aligned with their front columns 4 towards the side.
- the top of the trolley is adapted to the height of the top of the base plate 1.
- FIG. 1 A second embodiment of a casting machine according to the invention is shown in FIG.
- This embodiment corresponds essentially to the first embodiment and in turn has a base plate 1, a top frame 2, a movable platen 3, front pillars 4, rear pillars 5, a lifting mechanism 6, claws 9, 17 and a mold 8. The same parts will not be explained again.
- the second embodiment of the casting machine 15 differs from the first embodiment in that no clamping mechanism is provided.
- the rear pillars 5 extend slightly above the upper frame 2.
- a stiffener 20 is formed between the portion of the upper frame 2 remote from the rear pillars 5 and the rear pillar 5 protruding upward on the upper frame 2.
- the stiffening device 20 of the two rear pillars 5 is formed in each case as a strut.
- the second embodiment has a separate lifting device 21 for raising and lowering the front pillars 4.
- the lifting device 21 has a hydraulic cylinder 22 and a piston rod 23.
- the hydraulic cylinder 22 is fixed to a forward-facing projection 24 on the upper frame 2.
- the upwardly projecting from the hydraulic cylinder 22 piston rod 23 is connected to a yoke 25 which extends between the upper ends of the two front pillars 4 and is coupled thereto. By lifting the yoke 25 by means of the lifting device 21, the two front pillars 4 can be raised.
- the lifting device 21 of the second embodiment allows a much faster raising and lowering of the front pillars 4 than is possible in the first embodiment.
- the present embodiment has only a single hydraulic cylinder.
- the lifting device can of course also be formed with a plurality of hydraulic cylinders, which can be arranged in particular laterally in rectilinear extension of the yoke 25 on both sides of the casting machine 15.
- the operation of the casting machine 15 according to the second embodiment is substantially the same as that of the first embodiment. Tilting of the upper frame 2 is prevented here by the stiffening device 20. Therefore, no tensioning by means of a clamping mechanism 10 is necessary.
- the raising and lowering of the front pillars 4 takes place independently of the movement of the movable clamping plate 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015119243.8A DE102015119243A1 (en) | 2015-11-09 | 2015-11-09 | Press for a casting machine and casting machine |
PCT/EP2016/077012 WO2017081026A1 (en) | 2015-11-09 | 2016-11-08 | Vertical press for a casting machine, and casting machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3374105A1 true EP3374105A1 (en) | 2018-09-19 |
EP3374105B1 EP3374105B1 (en) | 2022-02-09 |
Family
ID=57256310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16793867.9A Active EP3374105B1 (en) | 2015-11-09 | 2016-11-08 | Vertical press for a casting machine, and casting machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3374105B1 (en) |
CN (1) | CN108348994B (en) |
DE (1) | DE102015119243A1 (en) |
RU (1) | RU2699477C1 (en) |
WO (1) | WO2017081026A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016100133U1 (en) | 2016-01-13 | 2017-04-19 | Kurtz Gmbh | Device for casting |
DE202017106391U1 (en) | 2017-10-23 | 2019-01-24 | Kurtz Gmbh | Press for a casting machine and casting machine |
DE102018006557A1 (en) * | 2018-08-20 | 2020-02-20 | Aulbach Automation GmbH | Apparatus for applying a pressing pressure and method |
DE102018006556A1 (en) * | 2018-08-20 | 2020-02-20 | Aulbach Automation GmbH | Apparatus for applying a pressing pressure and method |
CN112207255B (en) * | 2020-10-20 | 2021-11-09 | 临沂天阔铸造有限公司 | High efficiency die casting die |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH576829A5 (en) * | 1975-02-11 | 1976-06-30 | Buehler Ag Geb | |
US4285384A (en) * | 1979-10-31 | 1981-08-25 | Ex-Cell-O Corporation | Apparatus and method for tie bar nut drive system |
SU1458074A1 (en) * | 1987-01-16 | 1989-02-15 | Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Объединения "Кузбассэлектромотор" | Machine for casting electric motor rotors at low pressure |
DE3920690A1 (en) * | 1989-06-21 | 1991-01-10 | Mannesmann Ag | COLUMN DRAWING DEVICE FOR INJECTION MOLDING MACHINES |
US6286584B1 (en) * | 1998-07-15 | 2001-09-11 | James A. Frields | Quick-change mechanism for a tie bar |
CN2780443Y (en) * | 2005-04-20 | 2006-05-17 | 林丽桔 | Vertical mould closing machine |
DE102005029060B3 (en) * | 2005-06-23 | 2006-11-30 | Reis Gmbh & Co. Kg Maschinenfabrik | Three-column deburring or stamping press comprises a tool changer in the form of a tool holder that can pivot about the rear column |
DE202012001185U1 (en) * | 2012-01-26 | 2012-04-17 | Wanzke Ag | Column guide frame with variable column configuration and mounting groove |
CN102974800B (en) * | 2012-10-17 | 2014-10-29 | 南昌大学 | Injecting feeding device of extrusion casting machine |
-
2015
- 2015-11-09 DE DE102015119243.8A patent/DE102015119243A1/en not_active Withdrawn
-
2016
- 2016-11-08 EP EP16793867.9A patent/EP3374105B1/en active Active
- 2016-11-08 RU RU2018112972A patent/RU2699477C1/en active
- 2016-11-08 CN CN201680064352.0A patent/CN108348994B/en active Active
- 2016-11-08 WO PCT/EP2016/077012 patent/WO2017081026A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN108348994A (en) | 2018-07-31 |
DE102015119243A1 (en) | 2017-05-11 |
RU2699477C1 (en) | 2019-09-05 |
WO2017081026A1 (en) | 2017-05-18 |
CN108348994B (en) | 2020-03-03 |
EP3374105B1 (en) | 2022-02-09 |
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