DE2252133A1 - Stacked mould making machine - with automatic multistage sequencing - Google Patents

Abstract

The machine comprising equipment arranged to work in sequence for the parting of empty mould boxes, prepn. and stacked assembly of the casting moulds on a pallet and a drive for the stepwise feed of empty stacks of mould boxes on the pallet into the parting station, includes under the mould making unit tracks for the controlled stepwise transfer by a special drive of the empty pallets from the empty mould box parting unit into the mould assembly unit which motion is syn chronised with the displacement of the subsequent empty mould box stack on another pallet into the parting unit.

Description

PLANT FOR MANUFACTURING AND STACKED ASSEMBLY OF CASTING FORMS The present invention relates to the improvement of molding machines for foundries, in particular systems for the production and stacked assembly of casting molds and can preferably be used in automated production of small castings will.

It is <known> a plant for making and stacking - <> ten assembling of molds, which consists of three stations on which parallel the following operations are carried out in each cycle: molding box separation, production and stacked assembly of molds.

The stations are connected by guides for transporting the casting molds after each operation.

At the first station, the molding box is separated from the stacking unit by lowering it on a lifting table to the level of the guides, with the other molding boxes being held by special grippers.

Stacked assembling the molds is done with the help of another Lifting table executed, the next finished casting mold as it moves upwards decreases from the guides, so they come into contact with the previously assembled ones brings that the to be assembled stacking unit of the molds by the height of a Casting mold is raised and held in this position by spring-loaded guide cones.

After the stacking unit is completely assembled, succeeded on the assembly station from the outside a pallet on which the stacking unit placed in the casting molds and fed to the casting line.

Another system for the production and stacked assembly of casting molds is also known. It is provided with a movable frame with the help of which the molding boxes are transported from the separating station to the manufacturing station and, at the same time, molds ready for casting are transported to the stacked assembly station. The assembly of the casting molds by subsequently placing each next one on the mold made earlier.

Principle of assembling leaves the molds on a tentative basis stack the pallet supplied to this station in a stacking unit @@, the then transported on this pallet to the casting line However, the production and stacking of the casting molds have one thing in common Disadvantage that is that for assembling the molds on the pallet additional ones arranged outside the facility. Means of transport are what to make equipment more expensive and to expand the required operating area leads.

The present invention aims to remedy the shortcomings enumerated above to eliminate.

The invention is based on the object of producing the plant and stacked assembling of molds to create the transportation the pallet, within the system dimensions using its own propulsion the system is running.

This task is achieved through the development of a system for the production and stacked assembly of casting molds, e consisting of devices arranged below for separating the empty mold boxes, manufacturing and stacked assembly of the casting molds on the pallet, as well as the drive for the step-by-step in the device for separating the stacking units moving empty molding boxes are released from empty molding loads; <is> the system according to the invention is provided with guides, which are accommodated under the device for producing casting molds and with the help of which the pallets freed from the empty molding boxes are gradually moved from the device for separating the empty molding boxes into the device for assembling the casting molds by means of a drive be transported; at the same time the neclistc stacking unit of the empty molding boxes on the pallet is conveyed into the device for their separation.

The use of such guides and the combination of the functions of the drive to the step feed enable the system area to be reduced and the system costs to be reduced of special funding for transferring the pallets to the device for assembling the molds.

The invention is illustrated below with reference to one in the drawing Embodiment of a plant for manufacturing and stacked assembly of Casting molds explained. It shows: Fig. 1 a schematic representation of the invention Plant in longitudinal section; FIG. 2 is a view in the direction of arrow A according to FIG.

1.

i The system contains the following devices: - Device for disconnection of the molding boxes, consisting of one.

Lifting table I (Fig. 1), above the lifting table sprung grippers 2 and a drive 3 for conveying the empty molding boxes 4 into said device; - Device for the production of the casting molds, shown from one Molding sand slider pocket 5, which is pushed on the support plate with the coaming a1 6, a press cylinder 7 with the model plate 8 attached to his stick for the upper mold impression and a pull-through mechanism 9 with the model plate 10 for the lower one Shape imprint; - Device for assembling the casting molds in stacking unit 17, consisting of a Hebetiseh .4d and controlled grippers 12 (Fig. 2) with a Drive 13 for opening it; - On the frame 14 under the device for manufacturing the mold guides 15. (Fig. 1, 2) and drive 16 for the step feed Stacking unit 17 of empty molding boxes 4 on the pallet 18 from the facility for their separation into the device for assembling the molds.

The system works as follows: The stacking unit 17 (Fig. 1) of empty shape branches 4 on the pallet 18 is the system on the guides 15 (Fig.

1, 2), after which the stacking unit by means of the drive 16 to set up for separating the molding boxes is gradually promoted. Simultaneously becomes the free pallet arranged under the device for producing the casting molds 18 through the same drive 16 to the guides 15 in the assembly device the molds conveyed.

The manufacture of a stacking unit of molds has a number of cycles based on the following operations consist of: - movement of the lifting table 1 with a stacking unit 17 of empty molding boxes 4 upwards, until the upper molding box 4 reaches the spring-loaded gripper 2; - movement of the Lifting table 1 down, in which the upper molding box 4 is removed from the stacking unit 17 or separated from the pallet 18 in the last cycle and held by the grippers 2 will; - Displacement of this molding box 4 by means of the drive 3 in the device for making the molds; where is the one made in the previous cycle Casting mold on the controlled gripper 12 of the device for assembling the casting molds postponed; - Supply of what has come into the device for producing the casting molds Molding box 4 for the model plate 10 arranged on the pull-through mechanism 9 and pressing it on the model plate to the filling frame 6, after which the slide pocket 5 the molding box 4 fills with molding sand, which then passes through the model plate displaced by the press cylinder 7 8 is compressed; - Discharge of the pattern plates 8 and 10 from the produced casting mold with the aid of the press cylinder 7 and the pull-through mechanism 9; - Movement of the lifting table 44 to the top where the pallet 18 (in the first cycle) or the Stacking unit 17 of provisionally produced molds until they come into contact with the The casting mold is lifted lying on e controlled grippers 1; the grippers 12 are opened by the drive 13 and closed after aera lowering of the lifting table 11.

After the last mold has been made in a stacking unit the freed pallet 18 is lowered onto the guides 15 by the lifting table 1 and a stacking unit of molds by the lifting table 11 onto the pallet 18 applied, after which the system a new stacking unit 17 of leoren molding boxes 4 is fed on the pallet 18, and the whole process of manufacturing and stacked Assembling the molds repeatedly. This version of the plant is for Manufacturing and stacking assembly of the casting molds is compact and easy to use and can be easily installed in automatic roads.

Claims (1)

PATENT CLAIM System for the production and stacked assembly of casting molds, which consist of devices arranged below for separating the empty molding boxes, producing and stacking assembling the casting molds on the pallet drive for step feeding a stacking unit of empty molding boxes on the pallet in the device for their separation, characterized in that it is provided with guides (15) which are accommodated under the device for producing the GIOS molds and by means of which the pallets (18) freed from the empty molding boxes (4) from the device for separating the empty molding boxes (4) into the device for assembling the casting molds by means of cincs drive (16) be handed over gradually simultaneously with the advance of the following stacking unit (17) of empty molding boxes (4) on the. Pallet (18) in the device for your separation.