CN2701552Y

CN2701552Y - Sand shooting mechanism for core shooter

Info

Publication number: CN2701552Y
Application number: CN 200420027825
Authority: CN
Inventors: 刘纯廉
Original assignee: Suzhou Industrial Park Mingzhi Casting Equipment Co ltd
Current assignee: Suzhou Mingzhi Technology Co Ltd
Priority date: 2004-06-07
Filing date: 2004-06-07
Publication date: 2005-05-25
Anticipated expiration: 2014-06-07

Abstract

The utility model discloses a sand shooting mechanism for a core shooter, mainly comprising a sand storage bucket, a sand shooting valve, a shooting head and a gas storage bag, wherein, the gas storage bag is communicated with the sand shooting valve, the sand shooting valve is communicated with the sand storage bucket via gas transmission passages, and the bottom end of the sand storage bucket is provided with the shooting head. The sand shooting mechanism for a core shooter is characterized in that the sand shooting valve is a plate type sand shooting valve which comprises a plate type valve plate, a plurality of gas transmission passages under the plate type valve plate and a gas transmission chamber communicated with the gas transmission passages, the middle part of the plate type sand shooting valve is provided with a support bar and a circular chassis, the circular chassis is arranged at the bottom of the gas transmission chamber and is positioned via connecting with the support bar, an annular gas transmission opening is formed between the circular chassis and the outer wall of gas transmission chamber, and the annular gas transmission opening is communicated with the sand storage bucket via a filter screen. The utility model can provide intake charge with high flow rate to enhance the forming quality of sand core and prolong the service life of the sand shooting valve; simultaneously the phenomenon that residual sand in the sand storage bucket can be overlapped and hung together can be avoided, and the filter screen can be replaced conveniently and quickly.

Description

A kind of core shooter penetrate sand mechanism

Technical field

The utility model relates to a kind of parts of making casting mold or core sand moulding machine, is specifically related to a kind of compressed air that utilizes and as power sand grains is injected in the core box and the mechanism of consolidation moulding.

Background technology

Core shooter is a kind of equipment that is used to cast various cores, and its simple workflow is: core sand is injected cartridge → core sand is injected core box → compressed air make the demoulding → immigration plunger tip station knockout behind its moulding → be blown into solid gas → core sand curing molding by the head of penetrating of bottom.Wherein blasting unit, penetrate head and inject compressed-air actuated mechanism etc. and partly constitute and penetrate sand mechanism.

In the prior art, the cartridge of penetrating sand mechanism can be divided into two kinds: the one, have spacer, and another kind is not to be with spacer; The former has the finedraw or the fine-structure mesh of ventilation on the sidewall of spacer, the effect of spacer is to prevent to produce phenomenons such as scaffolding, extension sand, plays the effect of filtering sand grains simultaneously when exhaust gas, is unlikely to bring sand grains in air contaminated environment, but spacer is impaired easily, and is also cumbersome during replacing; The latter is not because of being with spacer, compressed-air actuated admission pressure skewness weighing apparatus, easily produce phenomenons such as scaffolding, extension sand, and when exhaust, must add screen pack in the gas outlet, prevent the destruction of sand grains to air quality, yet screen pack is stopped up by sand grains easily, needs cleaning every day, and the work of dismounting, replacing screen pack is also more loaded down with trivial details.

The Sand jet valve of penetrating in the sand mechanism also is indispensable part.At present, common Sand jet valve has in the form of piston, the annular piston formula, the rubber film formula, also have the two position two-way valve that directly adopts big flow or the like, all these all occur wear phenomenon in the course of the work unavoidably, thus the problem that takes place to leak gas and so on, because the quality of Sand jet valve directly has influence on the formability and the degree of packing of core, so the wearing and tearing of Sand jet valve make the quality of core to guarantee.

Summary of the invention

It is big that the utility model purpose provides a kind of charge flow rate, do not have wearing and tearing, long service life, and clear up convenient, easy to operate core shooter penetrate sand mechanism.

For achieving the above object, the technical solution adopted in the utility model is: a kind of core shooter penetrate sand mechanism, mainly comprise cartridge, Sand jet valve, penetrate head and gas storage bag, wherein the gas storage bag is communicated with Sand jet valve, Sand jet valve is communicated with cartridge through gas distribution channel, the bottom of cartridge is provided with penetrates head, described Sand jet valve is board-like Sand jet valve, it comprises board-like valve plate, be positioned at a plurality of gas distribution channels of board-like valve plate below, the gas transmission storehouse that is communicated with gas distribution channel, board-like Sand jet valve middle part is provided with support bar and circular base plate, circular base plate is positioned at and is connected the location bottom the gas transmission storehouse and with support bar, looping blowing mouth between the outer wall in described circular base plate and gas transmission storehouse, and be communicated with cartridge by screen pack.

When needs are opened valve plate, reduce the air pressure on valve plate top fast, make air pressure in the gas distribution channel greater than top air pressure, valve plate to be backed down, can inject gas distribution channel this moment with the compressed air in the gas storage bag; Otherwise, when needs are closed valve plate, only the air pressure on valve plate top need be adjusted to the air pressure that is higher than in the gas distribution channel and get final product, valve plate falls under gas pressure, closes gas distribution channel; Thereby reach the purpose of quick unlatching and big flow air inlet; Simultaneously, the annular blowing mouth that constitutes with circular base plate and gas transmission storehouse outer wall is used, and has strengthened the intensity of penetrating sand air pressure, helps the shaping and the consolidation of core; Owing to have the powerful sand air pressure of penetrating, make cartridge under situation not with the spacer of rapid wear, can reach equally and scaffolding do not occur, hang problem such as sand.

In the technique scheme, the top of described cartridge, and be provided with screen pack between the circular base plate; Lower housing portion at Sand jet valve is provided with at least 3 pneumatic lock pins, and described gas transmission storehouse sidewall is provided with the pin-and-hole corresponding with pneumatic lock pin; Described screen pack, the gentle pendulum lock pin in gas transmission storehouse are formed filter screen device; This is penetrated the sand machine and also comprises more changing device of a screen pack, and described screen pack more changing device and cartridge is located on the guiding trolley of same level; The described screen pack more top of changing device is the cylindrical shape platform that adapts with filter.

When the cartridge that uses not with spacer, discharge residual gas and must pass through strainer filtering, so use filter screen device and the more combination of changing device of screen pack; Since screen pack more changing device and cartridge on same guiding trolley, when needs are changed filter screen, only need move horizontally dolly, with screen pack more changing device move to filter screen device bottom, the cylindrical shape platform is risen, open pneumatic lock pin, filter screen device falls on the columnar platform, fall platform then, more changing device shifts out again, otherwise cleaning or has changed screen pack after put in back on the original position, thereby the purpose that has reached quick replacing, cleared up screen pack, these actions can automatically be carried out by automatically controlled program.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1. because the utility model has adopted board-like Sand jet valve, Sand jet valve can be opened and closed fast, can provide the air inlet of big flow simultaneously, thereby improved the quality that core is shaped.

2. because the utility model has adopted board-like Sand jet valve, it is almost nil that wear intensity is reduced to, and improved the formability and the degree of packing of core, and prolonged the service life of Sand jet valve.

3. adopted annular air outlet, increased the intensity of giving vent to anger,, can avoid the scaffolding of residual sand in the cartridge, the appearance of extension sand phenomenon equally even do not use the spacer of rapid wear.

4. because the utility model has adopted the more structure that is used of changing device of filter and screen pack, make the replacing of screen pack not only convenient but also quick.

Description of drawings

Accompanying drawing 1 is the utility model embodiment one structural representation;

Accompanying drawing 2 is that the utility model embodiment one is mounted to the user mode figure on the complete machine.

Wherein: [1], cartridge; [2], Sand jet valve; [3], penetrate head; [4], gas storage bag; [5], gas distribution channel; [6], board-like valve plate; [7], gas transmission bag; [8], support bar; [9], circular base plate; [10], annular blowing mouth; [11], screen pack; [12], pneumatic lock pin; [13], filter screen device; [14], screen pack changing device more; [15], guiding trolley; [16], cylindrical shape platform.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one: shown in attached Fig. 1 and 2, a kind of core shooter penetrate sand mechanism, mainly comprise cartridge 1, Sand jet valve 2, penetrate 3 and gas storage bag 4, wherein gas storage bag 4 is communicated with Sand jet valve 2, Sand jet valve 2 is communicated with cartridge 1 through gas distribution channel 5, the bottom of cartridge 1 is provided with penetrates 3, described Sand jet valve 2 is board-like Sand jet valve, it comprises board-like valve plate 6, be positioned at a plurality of gas distribution channels 5 of board-like valve plate below, the gas transmission storehouse 7 that is communicated with gas distribution channel 5, board-like Sand jet valve middle part is provided with support bar 8 and circular base plate 9, circular base plate 9 is positioned at 7 bottoms, gas transmission storehouse and is connected the location with support bar 8, looping blowing mouth 10 between the outer wall in described circular base plate 9 and gas transmission storehouse 7, and be communicated with cartridge 1 by screen pack 11.

In the present embodiment, be provided with 3 pneumatic lock pins 12 in the lower housing portion of Sand jet valve 2, described gas transmission storehouse 7 sidewalls are provided with 3 pin-and-holes corresponding with pneumatic lock pin 12; Described screen pack 11, gas transmission storehouse 7 gentle pendulum lock pin 12 are formed filter screen device 13; Simultaneously, it also comprises more changing device 14 of a screen pack, and described screen pack more changing device 14 is located on the guiding trolley 15 of same horizontal movement with cartridge 1; The described screen pack more top of changing device 14 is the cylindrical shape platform 16 that adapts with filter 13.

Claims

1. a core shooter penetrates sand mechanism, mainly comprise cartridge [1], Sand jet valve [2], penetrate head [3] and gas storage bag [4], wherein gas storage bag [4] is communicated with Sand jet valve [2], Sand jet valve [2] is communicated with cartridge [1] through gas distribution channel [5], the bottom of cartridge [1] is provided with penetrates head [3], it is characterized in that: described Sand jet valve [2] is board-like Sand jet valve, it comprises board-like valve plate [6], be positioned at a plurality of gas distribution channels [5] of board-like valve plate below, the gas transmission storehouse [7] that is communicated with gas distribution channel [5], board-like Sand jet valve middle part is provided with support bar [8] and circular base plate [9], circular base plate [9] is positioned at bottom, gas transmission storehouse [7] and is connected the location with support bar [8], looping blowing mouth [10] between the outer wall of described circular base plate [9] and gas transmission storehouse [7], and be communicated with cartridge [1] by screen pack [11].

A kind of core shooter according to claim 1 penetrate sand mechanism, it is characterized in that: the lower housing portion at Sand jet valve [2] is provided with at least 3 pneumatic lock pins [12], described gas transmission storehouse [7] sidewall is provided with and the corresponding pin-and-hole of pneumatic lock pin [12]; Described screen pack [11], the gentle pendulum lock pin in gas transmission storehouse [7] [12] are formed filter screen device [13].

A kind of core shooter according to claim 2 penetrate sand mechanism, it is characterized in that: it also comprises more changing device [14] of a screen pack, described screen pack more changing device [14] is located on the guiding trolley [15] of same horizontal movement with cartridge [1]; The described screen pack more top of changing device [14] is the cylindrical shape platform [16] that adapts with filter [13].