Air blowing device and production line
An air blowing device and gas collecting technology, applied in the field of sand core manufacturing, can solve the problems affecting the final strength and surface finish of the sand core, affecting the hardening of the sand core, etc., and achieve the effect of avoiding the uneven degree of hardening of the sand core
Pending Publication Date: 2020-09-22
SHANXI FENXI HEAVY IND
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Problems solved by technology
Existing technology uses CO 2 For the solution of directly blowing air to the sand core from the gas bottle, when multiple blowing holes are required, use one gas bottle for each blowing hole, and the CO 2 There will be a sequence of gas blowing, which will affect the hardening of the sand core at the joint part of the gas blown into each part, and affect the final strength and surface finish of the sand core
Method used
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] In the prior art, sand cores are blown by connecting multiple air cylinders with multiple air blowing holes. This method of blowing air has uneven blowing sequence and pressure, which will cause uneven hardening quality of sand cores.
[0021] For the problems referred to above, the present invention provides a kind of blowing device, as figure 1 , figure 2 As shown, it includes: an air collecting structure, an air blowing structure and a control part...
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The embodiment of the invention discloses an air blowing device. The air blowing device comprises an air collection structure, an air blowing structure and a control portion. The air collection structure is fixedly connected with the air blowing structure, the air collection structure comprises an air collection portion, and the air collection portion is connected with an air source. The air blowing structure comprises a distribution portion and an air blowing portion, and the air blowing portion is fixedly connected with the distribution portion. The air blowing portion comprises at least oneair outlet and at least one first valve, the first valves are in one-to-one correspondence to the air outlets, and the first valves are used for controlling opening or closing of the air outlets. Thecontrol portion is at least used for controlling opening or closing of the first valves. Air is blown out, and therefore simultaneous inputting and simultaneous stop are achieved, and sand core hardening consistency is ensured; and air blowing pressure is uniform, and it is guaranteed that the hardening degrees of various parts of sand cores are uniform.
Description
technical field [0001] The invention relates to the field of sand core manufacturing, in particular to an air blowing device and a production line. Background technique [0002] Phenolic urethane resin is used as the core sand binder in the core-making process in the foundry. The resin will produce irritating gas during the core-making process, which seriously affects the workshop and the surrounding environment. CO 2 Gas, as an environment-friendly binder, can be applied to the production of thin-walled aluminum alloy castings. [0003] Binder is blowing CO 2 gas process, CO 2 The uniformity and stability of gas blowing directly determine the final quality of the sand core. Existing technology uses CO 2 For the solution of directly blowing air to the sand core from the gas bottle, when multiple blowing holes are required, use one gas bottle for each blowing hole, and the CO 2 There will be a sequence of gas blowing, which will affect the hardening of the sand core whe...
Claims
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IPC IPC(8): B22C9/12B01D53/26B01D46/00
CPCB01D46/00B01D53/26B22C9/123
Inventor 薛永军宗绍迎方勇高永军刘彧王晓庆高志明
Owner SHANXI FENXI HEAVY IND