SU1519834A1 - Mould for die reinforced undercut casting - Google Patents

Abstract

The invention relates to foundry, in particular to the injection molding of reinforced castings with undercuts, mainly the soles of electric iron. The aim of the invention is to improve the quality of castings. The injection mold for the reinforced parts consists of a fixed 1 and a movable 2 half-form, including ejector plates 3 with pushers 4 and return columns 5, as well as a movable insert 7, driven by a hydraulic cylinder 11. With the help of the grooves 14 made in the half-form in which the pin 13 of the movable insert 7 and of the pushers 6 fixed in the plates 3 are placed, the movement of the movable insert 7 is carried out, providing a rigid clamp of the reinforcement 9 in the movable half-form 2. This prevents the reinforcement from being displaced during the process of lit . 4 il.

Description

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As a result, the pushers 4 push the casting out of the movable half-form (Fig. 3). The casting is accepted by the manipulator (not shown) and removed from the mold area. At the end of the stroke of the plate of the pushers 3, the pushers 6 mounted in it are open-and-open. The aim of the invention is not to raise the insert. After removal of the casting.

The invention relates to the field of foundry, in particular to the injection molding of reinforced castings with undercuts, mainly electro-iron soles.

quality castings.

FIG. 1 shows the mold of the blow molding and lubrication of the mold the manipulator puts the armature 9 in the required position.

red metal casting; in fig. 2 - position in the rolling mold 2 and including, before the ejection of the casting; in fig. 3 -10 hydraulic cylinder 11. Under the influence of

the same, at the end of the ejection stroke from the hydraulic cylinder, the insert moves upwards,

pouring; in fig. 4 same as before. The position of the insert during this double-insert inserted reinforcement.

A mold for casting under pressure reinforced castings with undercuts with surfaces 15 provided in the grooves 15, keeps (Fig. 1) fixed 1 and moving as well with a pin 13 moving

2 half-molds. The movable half-form includes a pusher plate 3 with reinforced 4 pushers, 5 return columns and a special pusher 6, as well as an insert 7, which together with the decorating part of the movable half-form forms a nest 8 for the fitting section 9.

The insert has two cheeks 10, which 11 ;. The bridge is connected to the rod 25 of the core 25, the socket 8 moves perpendicular to the cylinder 11, in turn, to the hinged sections of the armature and fittings 9

clamped in the nests 8. The manipulator is released from the reinforcement and leaves the mold area. The mold is closed, with the return columns 5, being displaced into the copier packs 14, performed in a fixed half of the mold 1, placed in the plates of the movable plate, moved the plate of the pushers 3 and the mold returned to the position shown in FIG. I. In this position, the mold for pressing in the metal and repeating the technological cycle, the keys 6, when the latter are in 35. The invention makes it possible to eliminate the offset-extended position. In the closed pressing of the fittings in the manufacturing process

The position of the insert is fixed in the form of the deputy g of the reinforced castings and due to this, a ball 16, fixed in a fixed position, improves their quality and reduces the marriage.

This is determined by the pushers 6, on which the insert slides with the support on the slots 14. When the pin reaches the top edge of the grooves 14 and rests against it, the translational movement of the insert stops, it takes the position shown in FIG. 4. As the hydraulic cylinder 11 continues to operate, the insert 7 rotates around the axis of the pin 13. At the last moments of movement, the part of the insert forming

fastened with a horizontal 12 to the plates of a movable 1 form 2.

The pin 13 is fastened in the cheeks of the inset, the ends of which are the entrance g with the possibility

parallel to the axis of the socket 8. In the insert 7, grooves 15 are made, having supporting surfaces with which the insert can be supported and slid along special toloform 1.

The mold works as follows.

After pressing into the mold, closed with the reinforcement (Fig. 1), it is allowed to stand for crystallization of the casting. At the end of the crystallization, a command 45 is given a movable half-form, in which the opening of the mold is set and the pusher plates are moved from the poulter-semi-uniform 2 together with the casting held by the movable insert 7 with the reinforcement 9, moves away from the fixed half-form 1. At the end of the opening , the insert, which forms the undercuts under the supporting section of the reinforcement and the hydraulic cylinder for moving the insert, characterized in that, in order to increase, the hydraulic cylinder 1 1, which extracts the inserts of the castings, is pumped in a movable half-form

ku 7 and thereby freeing the casting (Fig. 2). During this movement, the ends of the pin 13 are guided by the slots 14. Then, the machine's hydraulic ejector is turned on, moving the plate of the pushers 3.

55

A copy groove is made, the insert is connected to the copy groove by means of a pin, and is pivotally connected to the hydraulic cylinder rod, with one of the tappets mounted with the possibility of interaction with the insert.

blowing and lubricating the mold the manipulator places the reinforcement 9 in the desired position in the movable mold 2 and the insert position during this two surfaces, located in the grooves 15, as well as with the pin 13 moving

tines are determined by the pushrods 6, over which the insert slides against the base.

the surfaces present in the slots 15, as well as the pin 13 moving

nest 8, moves perpendicular to the supporting sections of the armature and fittings 9

in the grooves 14. When the pin reaches the top edge of the grooves 14 and abuts against it, the insert's forward movement stops, it takes the position shown in FIG. 4. As the hydraulic cylinder 11 continues to operate, the insert 7 rotates around the axis of the pin 13. At the last moments of movement, the part of the insert forming

Claims (1)

40-- Invention Formula A mold for casting under pressure reinforced castings with undercuts, predominantly electro-iron soles, co-holding a fixed half-form and basements, an insert that forms an undercut under the supporting section of the armature and an insert displacement cylinder, characterized in that the purpose of improving the quality of castings in the moving half A copy groove is made, the insert is connected to the copy groove by means of a pin, and is pivotally connected to the hydraulic cylinder rod, with one of the tappets mounted with the possibility of interaction with the insert. 2 Phi2.