DE3624554A1 - System for the production of a core assembly - Google Patents

System for the production of a core assembly

Info

Publication number
DE3624554A1
DE3624554A1 DE19863624554 DE3624554A DE3624554A1 DE 3624554 A1 DE3624554 A1 DE 3624554A1 DE 19863624554 DE19863624554 DE 19863624554 DE 3624554 A DE3624554 A DE 3624554A DE 3624554 A1 DE3624554 A1 DE 3624554A1
Authority
DE
Germany
Prior art keywords
individual cores
core
plant
cores
another
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Withdrawn
Application number
DE19863624554
Other languages
German (de)
Inventor
Des Erfinders Auf Nennung Verzicht
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.)
Rheinische Maschinenfabrik & E
Original Assignee
Rheinische Maschinenfabrik & E
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 Rheinische Maschinenfabrik & E filed Critical Rheinische Maschinenfabrik & E
Priority to DE19863624554 priority Critical patent/DE3624554A1/en
Publication of DE3624554A1 publication Critical patent/DE3624554A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C13/00Moulding machines for making moulds or cores of particular shapes
    • B22C13/12Moulding machines for making moulds or cores of particular shapes for cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/10Cores; Manufacture or installation of cores
    • B22C9/103Multipart cores
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads
    • F02F1/24Cylinder heads

Abstract

The subject-matter of the invention is a system for the production of a core assembly. Core shooters for the production of a group of individual cores in a specified arrangement relative to one another are provided. Also provided is a transfer device for transferring the group of individual cores without altering the relative arrangement of the individual cores to a first machining station. Another provision is that an assembly device with an associated transfer device in which the individual cores arriving in groups are assembled to form the core assembly, and a second machining station, in which the arriving core assembly is subjected to a, at this stage, final machining operation, are provided, after which said core assembly is taken for further machining, for use or for storage.

Description

The designers of internal combustion engines usually strive moderately about the motors not only functionally but also to be designed for production. With the castings, e.g. e.g. the engine blocks and cylinder heads the construction of these parts in such a way that with possible as few and simple cores as possible. In spite of In this effort, it is unavoidable that some nuclei are too complicated to one piece in one operation to be put. Such cores must then consist of a number manufactured from individual cores and combined into a core package to be assembled. So far this has generally happened in the Way that in the large-scale production of cores individual Cores can be produced on various core shooters and manually using glue or compound bolts are combined to form a core package. Although such a process seems very out of date, it is still common today. Only sporadically Methods have been proposed that make core packages automatic and mechanically with a correspondingly low number of personnel can be produced.

The present invention addresses this problem and she wants to propose a system that is also complicated Core packages automatically by machine and therefore inexpensive can be produced in large numbers.

A system with the features is used to solve this task of claim 1, wherein this system with the features of Subclaims designed in a particularly useful manner becomes.

The invention and its advantages are explained in more detail below with reference to the drawing. Fig. 1 shows a core package, the manufacture of which is, for example, but also particularly intended, Fig. 2, the system according to the invention in a side view and greatly simplified and Fig.3 shows a section along the line III-III in Fig. 2nd

The core package 1 is a core package that is used when casting a double cylinder block. The finished core package could also be divided in level 2-2 , so that there were two core packages for two cylinder blocks, each with four cylinders in a row. The core package is shown on a scale of about 1:20, which should be said to convey a concept of reality without this being essential to the invention. The invention is also applicable, for example, for the production of cores for the casting of cylinder blocks of extremely large engines or other cast parts.

The core package consists of two core groups 3 and 4 , which are arranged symmetrically to level 5-5 . Each core group consists of three individual cores 6 , 7 and 8 (Fig.1).

In the conventional core shooter 9 , known per se, two core groups 6 , 7 and 8 are produced in two successive work cycles, the individual cores of both core groups being formed in the same position and arrangement with respect to one another in the core shooter ( FIG. 2). Core material must be used, and this core material must be compacted in such a way that the cores survive the handling in the plant undamaged and after the treatment in the plant according to the invention there is a core package 1 which is intended to be handled. It is important that sufficient binding and hardening agents are added to the core sand. A further discussion of the manufacture of the individual cores 6 , 7 and 8 is not necessary since this is known per se and is not the subject of the invention.

The two to be assembled into a core package 1 single core groups are successively in the core shooter 9 Herge, and with a transfer device 10 each core group 6 , 7 and 8 of a processing device 11 is supplied. The processing device 11 is a deburring device in which burrs of the individual cores which cannot be avoided are removed. The three individual cores are deburred in one work cycle, the template of the deburring machine is designed accordingly, ie has corresponding mold template openings. It is important that the two groups of molds are made in the same arrangement and assignment to one another and transferred to the processing device and processed there in order to be able to manufacture or process both groups with the same shooting tool of the shooting machine 9 and machining die in the deburring device.

The transfer device 10 consists of a rail 12 , on which a carriage 13 is movably suspended, to which gripping means 14 for holding the individual cores are assigned. The drive of the carriage 13 in the region of the rail 12 is not essential to the invention, is known per se and is therefore not shown.

With the same transfer device 10 or another correspondingly designed transfer device, the two groups of the individual cores, after they have been processed in the processing device 10, get into the assembly device 15, which is particularly important to the invention.

The mounting device has a fixed table base 17 , which is mounted on a foundation 16 and on which a table top 19, which is the same but rotatable about the vertical axis 18 relative to the table 17 , is mounted. At the beginning of the introduction of individual cores 6 , 7 and 8 in the assembly device 15 , these are stored in the order in which they were manufactured in the core shooter and processed in the processing station between two core holders 20 , 21 . Produce with the intention of a core packet according to Fig. 1, is now rotated the table top 19 about the vertical axis 18 by 180 ° so that the next group of individual cores 6 ', 7' and 8 'in the order of their manufacture in the core shooting machine be passed to the Montagevorrich device 15 , but stored mirror-symmetrically to the individual cores 6 , 7 and 8 already located there between the core holders 20 , 21 which were still free up to that point.

Are the individual cores 6 , 7 and 8 and 6 ', 7 ' and 8 'in the mounting device 15 , the surfaces of the individual cores with which they are to be joined are coated with adhesive from an adhesive application device 22 . The surfaces to be provided with adhesive of the individual cores 6 , 7 , 8 , 6 ', 7 ' and 8 'are directed upwards without exception, which facilitates the application of adhesive, or makes a simple application device 22 possible, but which is not itself an object the invention and is therefore not shown in detail. If the surfaces belonging to one another are supplied with adhesive, the pliers 23 , 24 of the core holders 20 , 21 in which the individual cores are held are pivoted about their longitudinal axis in such a way that the surfaces of the individual cores coated with adhesive face each other. The core holders 20 , 21 are then adjusted and moved so far on guide rods 25 , 26 that the surfaces to be glued come to lie on one another and are connected to one another. A possibly necessary contact pressure is generated with the means which bring the core holders 20 , 21 closer to one another, but as such are not essential to the invention and are therefore not described and illustrated, which also applies to the means which rotate the pliers 23 , 24 .

Obviously, for gluing the two core groups 6 , 7 and 8 on the one hand and 6 ', 7' and 8 ' on the other hand and for reliable gluing of the individual cores, surfaces of individual cores within each individual core group must be provided with adhesive, which in the initial position of the assembly device 15 point down. This can be done in an additional work cycle, in that the individual cores are additionally rotated in order to successively provide both adhesive surfaces of these individual cores with adhesive from the application device 22 , which is possible with little construction effort but correspondingly greater expenditure of time without difficulty. If a larger construction effort is to be accepted in order to allow an extremely fast working method, an additional adhesive application device 22 'can be provided in order to be able to provide the two surfaces of the individual cores concerned, which are opposite one another by 180 °, with adhesive at the same time.

If the individual cores are assembled in this way to form the core package 1 , this can be transferred to a further receiving device 27 . If the core package 1 has been taken over by the receiving device 27 , it can be transferred to an interim storage facility, it can be used directly, or it can be stored or used after a further processing. An aftertreatment is provided for smoothing all or part of the surface of the core package 1 in a bath 28 . This creates a heat-resistant coating so that the core sand is protected against the casting temperature and the casting surface is improved. The core package 1 which can be used in this way is deposited on a storage table 29 , for which purpose the receiving device 27 can be raised and lowered, can be moved laterally and can be rotated in order to be able to turn the core package about its longitudinal axis. The means by which this is effected are again known and are not shown as such as not essential to the invention.

The connection of the individual cores 6 , 7 and 8 and 6 ', 7 ' and 8 'to the core package 1 can be done in a different way than by gluing, for example by screwing, without this having to be explained in detail.

The core groups 6 , 7 and 8 on the one hand and 6 ', 7', 8 'on the other hand do not have to be assembled symmetrically. If they are to be put together in the same order of the individual cores in which they are manufactured, then the upper part of the table does not have to be rotated about the vertical axis, and only a correspondingly long adjustment path of the slide 13 is to be seen, in order to initially include the group of core holders 20 , 21 individual cores 6, 7 and to be able to equip 8, the engine of core shooters are averted 9 and then the core shooter 9 surrounding the core holder 20, 21, provided with the fabricated in the second work cycle of the core shooting machine individual cores 6, 7 'and 8' of the second single-core group to be able to.

Instead of being connected to a single core shooter 9 , the device can also be connected to two or more core shooters.

Claims (11)

1. Plant for the production of a core pact, characterized by one or more known core shooting machines for producing a group of individual cores in a predetermined assignment of the individual cores to one another, by a transfer device for transferring the group of individual cores to one another without changing the assignment of the individual cores to a first processing station, further characterized by this processing station itself, by an assembly device with associated transfer device in which the individual cores arriving in groups are assembled to form the core package and by a second processing station in which the incoming core package is subjected to a final processing to this extent then to be subjected to further processing, use or storage.
2. Plant according to claim 1, characterized in that that in the assembly device to the core package Single cores in the assembly device for assembly Core package still further individual cores can be added can.
3. Plant according to claim 2, characterized in that those in the jig to the first group of Individual cores added further individual cores as well are combined into a group of individual cores and that this second group of single cores like that first group of single cores in the same or different Core shooters have been manufactured.  
4. Plant according to claim 3, characterized in that the mounting device is rotatable to the both from a core shooter in the same assignment of the individual cores arriving at each other to be able to assign groups mirror-symmetrically to each other.
5. Plant according to claim 2, 3 or 4, characterized in that the mounting device carrier for the individual cores has, the position of which can be changed relative to one another.
6. Plant according to claim 5, characterized in that the supports for the individual cores pivot relative to one another are cash.
7. Plant according to claim 5 or 6, characterized in that that the carrier for the individual cores relative to each other are translationally adjustable.
8. Plant according to claims 6 and 7, characterized net that the carrier for the individual cores pivotable and subsequently translationally adjustable to each other are.
9. Plant according to one of claims 1-7, characterized in that the mounting device has a device for attachment of connecting means for connecting the individual cores is associated with each other.
10. Plant according to claim 9, characterized in that the device for attaching the connecting means for the connection of the individual cores with each other is a device e.g. for applying adhesive.
11. Use of a system according to at least one of the claims che 1-10 for the production of core packages that at Production of castings are used.
DE19863624554 1986-07-21 1986-07-21 System for the production of a core assembly Withdrawn DE3624554A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863624554 DE3624554A1 (en) 1986-07-21 1986-07-21 System for the production of a core assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863624554 DE3624554A1 (en) 1986-07-21 1986-07-21 System for the production of a core assembly

Publications (1)

Publication Number Publication Date
DE3624554A1 true DE3624554A1 (en) 1988-01-28

Family

ID=6305609

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863624554 Withdrawn DE3624554A1 (en) 1986-07-21 1986-07-21 System for the production of a core assembly

Country Status (1)

Country Link
DE (1) DE3624554A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829402A1 (en) * 1987-10-22 1989-05-03 Erana Agustin Arana Improvements in the design of giess mold core packages
FR2627112A1 (en) * 1988-02-12 1989-08-18 Erana Agustin Arana Improved core blowing machine
EP0495157A2 (en) * 1991-01-15 1992-07-22 Adolf Hottinger Maschinenbau GmbH Process and apparatus for manufacturing pieces of cores for preparing a core packet ready for use in castings
WO1992012916A1 (en) * 1991-01-29 1992-08-06 Adolf Hottinger Maschinenbau Gmbh Conveyor device
WO1995010374A1 (en) * 1993-10-13 1995-04-20 Adolf Hottinger Maschinenbau Gmbh Core packing device
US6527039B2 (en) * 2001-06-11 2003-03-04 General Motors Corporation Casting of engine blocks
US6533020B2 (en) * 2001-06-11 2003-03-18 General Motors Corporation Casting of engine blocks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526265A1 (en) * 1985-07-23 1987-02-05 Hottinger Adolf Giesserei Core or mask packing machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526265A1 (en) * 1985-07-23 1987-02-05 Hottinger Adolf Giesserei Core or mask packing machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829402A1 (en) * 1987-10-22 1989-05-03 Erana Agustin Arana Improvements in the design of giess mold core packages
FR2627112A1 (en) * 1988-02-12 1989-08-18 Erana Agustin Arana Improved core blowing machine
EP0495157A2 (en) * 1991-01-15 1992-07-22 Adolf Hottinger Maschinenbau GmbH Process and apparatus for manufacturing pieces of cores for preparing a core packet ready for use in castings
EP0495157A3 (en) * 1991-01-15 1993-11-18 Hottinger Adolf Masch Process and apparatus for manufacturing pieces of cores for preparing a core packet ready for use in castings
WO1992012916A1 (en) * 1991-01-29 1992-08-06 Adolf Hottinger Maschinenbau Gmbh Conveyor device
US5425441A (en) * 1991-01-29 1995-06-20 Adolf Hottinger Maschinenbau Gmbh Workpiece transporting apparatus
WO1995010374A1 (en) * 1993-10-13 1995-04-20 Adolf Hottinger Maschinenbau Gmbh Core packing device
US5724788A (en) * 1993-10-13 1998-03-10 Adolf Hottinger Maschinenbau Gmbh Foundry core assembling apparatus
US6527039B2 (en) * 2001-06-11 2003-03-04 General Motors Corporation Casting of engine blocks
US6533020B2 (en) * 2001-06-11 2003-03-18 General Motors Corporation Casting of engine blocks
DE10225666B4 (en) * 2001-06-11 2004-10-28 General Motors Corp., Detroit Casting engine blocks

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