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Decoring vibrators or pneumatic hammers with aluminum casings for decoring foundry castings

An air hammer and alloy technology, applied in the field of pneumatic vibrators, can solve the problems of unprotected sensors, damaged sensors, unprotected sensors, etc.

Active Publication Date: 2019-07-05
O M LER 2000
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The sensor is not protected, and therefore, when the hammer is removed, the sensor can suffer damage, for example by impact
[0019] There is currently no hammer in the art that includes an impact-resistant integrated sensor; in fact, since the casing is made in one piece and the shape of the casing is dictated by standards imposed by the manufacturer of the machine to which such a hammer must be applied , there is no protection for this sensor

Method used

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  • Decoring vibrators or pneumatic hammers with aluminum casings for decoring foundry castings
  • Decoring vibrators or pneumatic hammers with aluminum casings for decoring foundry castings
  • Decoring vibrators or pneumatic hammers with aluminum casings for decoring foundry castings

Examples

Experimental program
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Embodiment Construction

[0027] Referring to the figures listed above, an air hammer or coring vibrator 2 is suitable for decoring foundry castings.

[0028] Hammer 2 comprises a casing 3 which in turn comprises: an inner chamber 32 ; an inlet circuit 4 for the entry of compressed air and an outlet circuit 5 for the discharge of compressed air.

[0029] Said hammer 2 also comprises, by way of non-limiting example, a connection flange 36 via which the hammer 2 can be connected to a coring machine. Preferably, said connecting flange 36 is included in the casing 3 as one piece.

[0030] An example of an implementation of the casing is through image 3 , Figure 4A to Figure 4D Shown by way of example.

[0031] The hammer 2 also includes a kinematic mechanism 7 for generating a reciprocating vibratory motion under the action of compressed air.

[0032] The casing 3 of the hammer 2 according to the invention is made of an alloy based on aluminum.

[0033] In an exemplary but non-limiting embodiment, t...

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PUM

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Abstract

The invention relates to an air hammer or a coring vibrator (2) for decoring foundry castings. The hammer (2) comprises a housing (3) which in turn comprises: an inner chamber (32); an inlet circuit (4) for compressed air entry; and an outlet circuit (5) for compressed air discharge . The hammer also includes a kinematic mechanism (7) and an impactor or striker (6) connected to said kinematic mechanism (7), which kinematic mechanism is used to generate a vibratory movement under the action of compressed air; said mechanism is arranged in the casing Inside the inner chamber (32) of (3), the striker or striker is intended to come into contact with the casting to be subjected to de-coring. The casing (3) of the hammer is made of an alloy comprising aluminium, silicon and magnesium.

Description

technical field [0001] The present invention relates to pneumatic vibrators, also known in the industry as pneumatic hammers, for decoring castings made of aluminium, steel and ferrous alloys. Background technique [0002] For the purposes of this specification, the term "coring" generally refers to the removal of sand material from a foundry casting. [0003] And, for the purpose of this specification, the term "casting" refers to a part / object obtained by casting metal in a suitable mould. [0004] Patent WO2007006936 describes an air hammer or a coring vibrator. [0005] The vibrator or hammer includes a casing that includes holes for the entry and exit of compressed air. Inside the casing there is a mechanical assembly including an air cylinder in which a piston slides under the action of compressed air. Said piston is in contact with a striker which in turn strikes the casting to be subjected to decoring. [0006] The hammer includes an attachment flange that allows...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D29/00B25D9/08B25D17/00
CPCB22D29/005B25D9/08B25D17/00B25D2222/21B25D2250/121B25D2250/221B22D15/02C22C21/02B25D2222/24
Inventor 法布里齐奥·莱尔达
Owner O M LER 2000