Core molding machine

Abstract

A core molding machine (10) comprises: a bearing frame (11) for supporting a device (12) for moving two mold parts (13, 14) of a core box (15), a head (16) for injecting mixture into the closed core box (15) by means of a corresponding compressor device (17), a hopper (18) for loading the mixture, the hopper being functionally connected to the injection head (16). The core molding machine comprises: a first device (20) for translation of the injection head (16) between the loading hopper (18) and the compressor device (17) arranged above the core box (15), and a second device (21) for translation of the injection head (16) between the active configuration and the clean configuration.

Description

technical field [0001] The present invention relates to a core forming machine. Background technique [0002] Core forming machines are currently known and widely used for example but not only for shell molding of metallic and non-metallic moulds, known in technical jargon as "core blow molding" machines and include: [0003] - carrying frame for supporting the means for moving the two mold parts of the core box, [0004] - a head for injecting the mixture into said closed core box with corresponding compressor means, for example of the pneumatic type or with a pestle type or other similar and equivalent compression means, [0005] - a hopper for loading the mixture, said hopper being functionally connected to the injection head, [0006] - A conveyor belt for collecting and removing the cores unloaded from the core boxes, arranged below said core boxes themselves. [0007] Although these core forming machines are widely used and valued, they have some limitations. [00...

AI Technical Summary

Problems solved by technology

[0007] Although these core forming machines are widely used and valued, they have some limitations

[0008] The first limitation is caused by difficult access to the loading hopper and injection head for cleaning operations

[0009] Both of these components are usually arranged in the upper part of the machine, above the core box, a position that makes access to them inconvenient and thus makes cleaning operations even more inconvenient

[0010] In addition, the same problem associated with the location of the hopper also makes its loading inconvenient

[0011] Another important disadvantage of known types of core forming machines results from the fact that the injection head is usually moved between the sand filling position below the hopper for the subsequent injection and the injection position above the core box; the injection head The path usually passes over the device used to move the mold parts of the core box

[0012] This translation usually results in remaining sand falling onto the mechanism of the mobile device, which is an event that rarely causes failure in said mobile device, resulting in machine downtime due to the replacement of any worn or damaged parts, especially Disadvantages of cleaning and repairing machines

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