CN219598010U - Casting filter residue pouring cup - Google Patents

Abstract

The utility model discloses a pouring cup for casting filter residues, which comprises a sand box, wherein a sand mould body is arranged in the sand box, a baffle and a filter screen are arranged in the middle of the sand mould body, and the baffle and the filter screen divide the sand mould body into a pouring cavity, an inoculation cavity and an inflow cavity; wherein, a cavity between the baffle plate and the inner side wall of the sand mould body forms a pouring cavity; the cavity between the baffle and the filter screen forms an inoculation cavity, and the cavity between the filter screen and the inner side wall of the sand mould body forms an inflow cavity; the bottom of the inflow cavity is provided with a straight gate; a pressing plate is arranged above the baffle plate and the filter screen, and is provided with an opening. The utility model has the advantages of stable and quick pouring, good instant inoculation effect, good filter residue effect and simple manufacture.

Description

Casting filter residue pouring cup

Technical Field

The utility model relates to the technical field of casting, in particular to a pouring cup for casting filter residues.

Background

The pouring cup with slag blocking and residue filtering functions commonly used in the industry comprises the following components: (1) The funnel small-sized pouring cup formed by materials such as damp mould sand or resin sand or precoated sand can horizontally arrange a foam ceramic filter screen with the diameter not more than 150mm in the cup, has good filter residue effect, but has low pouring speed and is mainly used for pouring iron liquid below 500 kg. (2) The pool-shaped medium-sized pouring cup molded by resin sand adopts a baffle slag blocking mode, a foam ceramic filter screen is not placed, the filter residue effect is poor, and the pouring device is used for pouring molten iron below 2000 kg. (3) The large-scale ration pouring cup of pond shape with resin sand shaping adopts the mode of pulling out the stopper and pushing off the slag, and the preparation is loaded down with trivial details, can not place the foam ceramic filter screen, and the filter residue effect is not good, uses widely in large-scale foundry goods production.

However, the main problems of the prior art are as follows: (1) None of the above pouring cups solves the problem of transient inoculation well. (2) The small pouring cup of the funnel directly impacts the foam ceramic filter screen in the pouring process, so that the splashing of the iron liquid and the floating and crushing of the foam ceramic filter screen are caused, and the pouring speed and the stable filling of the iron liquid are influenced. (3) The pool-shaped pouring cup is not provided with a foam ceramic filter screen, and oxide inclusions in molten iron cannot be filtered, so that the filter residue effect is poor, resin sand is used for molding, the sand consumption is large, refractory paint needs to be sprayed, and the manufacturing is complicated.

Disclosure of Invention

The utility model aims to provide a pouring cup for casting filter residues. The utility model has the advantages of stable and quick pouring, good instant inoculation effect, good filter residue effect and simple manufacture.

The technical scheme of the utility model is as follows: the pouring cup for casting filter residues comprises a sand box, wherein a sand mould body is arranged in the sand box, a baffle and a filter screen are arranged in the middle of the sand mould body, and the baffle and the filter screen divide the sand mould body into a pouring cavity, an inoculation cavity and an inflow cavity; wherein, a cavity between the baffle plate and the inner side wall of the sand mould body forms a pouring cavity; the cavity between the baffle and the filter screen forms an inoculation cavity, and the cavity between the filter screen and the inner side wall of the sand mould body forms an inflow cavity; the bottom of the inflow cavity is provided with a straight gate; a pressing plate is arranged above the baffle plate and the filter screen, and is provided with an opening.

According to the casting filter residue pouring cup, the pair of insert casting lifting lugs are arranged on the two outer side faces of the sand box in the length direction.

According to the casting filter residue pouring cup, the volume ratio of the pouring cavity to the inoculation cavity to the inflow cavity is 2:1:1.

The filter screen is a foam ceramic filter screen.

In the casting filter residue pouring cup, the baffle plate groove is arranged in the inner cavity of the sand mold, and the baffle plate is arranged in the baffle plate groove.

The casting filter residue pouring cup is characterized in that a filter screen groove is formed in the sand mold body, and the filter screen is arranged in the filter screen groove.

According to the casting filter residue pouring cup, the top of the baffle and the filter screen are flush with the top of the sand mold body.

Compared with the prior art, the utility model uses the baffle to divide the pouring cavity and the inoculation cavity, plays a good role in buffering the poured molten iron, realizes quick pouring, can prevent primary slag in the molten iron from entering the inoculation cavity, and protects the foamed ceramic filter screen. The utility model is provided with the inoculation cavity, and a special automatic control mechanism can be configured to add inoculation blocks with proper sizes into the opening of the pressing plate at regular time and quantity, so that the best inoculation effect is realized, the excellent graphite morphology is obtained, and the internal quality of castings is obviously improved. According to the utility model, the inoculation cavity and the inflow cavity are divided by using the filter screen, so that oxide inclusions in molten iron are completely filtered and adsorbed, the molten iron is changed into laminar flow from turbulent flow and enters the straight gate, the defect of oxide slag inclusion of a casting is effectively eliminated, the flaw detection rejection rate of the casting is greatly reduced, and the quality and stability of the casting are improved. Therefore, the utility model has the advantages of stable and quick pouring, good instant inoculation effect, good filter residue effect and simple manufacture. In addition, the sand box is formed by casting, and has the advantages of good stability, convenient cleaning and long service life. The sand mould body is manufactured by using precoated sand on the special mould, the pneumatic demoulding device is arranged, the manufacturing is simple and quick, the sand mould body is tightly connected with the sand box, the surface of the sand mould body is compact and smooth, and the spraying of fireproof paint is not needed. The pressing plate is of a hollow structure, the baffle plate and the foam ceramic filter screen can not float upwards during pouring, and the opening is convenient for a special automatic control mechanism to add inoculation blocks at fixed time and quantity on one hand and to observe the flowing state of molten iron on the other hand.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the length of FIG. 1;

FIG. 3 is a schematic view of a flask of the present utility model;

fig. 4 is a schematic view of a sand mold body according to the present utility model.

Reference numerals

1. A sand box; 2. a sand mold body; 3. a baffle; 4. a filter screen; 5. a pressing plate; 11. insert casting lifting lugs; 21. pouring into the cavity; 22. a baffle plate groove; 23. a filter screen groove; 24. inoculating cavity; 25. into the cavity.

Detailed Description

The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.

Examples: 1-2, the pouring cup for casting filter residues comprises a sand box 1, wherein the sand box 1 is formed by casting, has good stability, is convenient to clean, has long service life and has a main wall thickness of 25mm; the sand box 1 is internally provided with the sand mould body 2, the sand mould body 2 is made of precoated sand on a special mould, a pneumatic demoulding device is arranged, the manufacturing is simple and quick, the sand mould body 2 is tightly connected with the sand box 1, the surface of the sand mould body 2 is compact and smooth, and the spraying of fireproof paint is not required; the sand mould body 2 is concave along the height direction to form a sand mould inner cavity, the middle part of the sand mould inner cavity is provided with a baffle plate 3, the baffle plate 3 is a formed customized slag blocking refractory brick, is trapezoid, and has a size matched with a baffle plate groove 22 of the sand mould body 2, and has an average thickness of 30mm; the bottom surface of the baffle plate 3 is 8mm higher than the bottom surface of the sand mould inner cavity; the inner cavity of the sand mold is also provided with a filter screen 4, the filter screen 4 is a foam ceramic filter screen 4, and is manufactured in a molding and customizing mode, is trapezoid, and has the size matched with a filter screen 23 groove of the sand mold body, and has the average thickness of 35mm; the bottom surface of the filter screen 4 extends into the bottom surface of the sand mold cavity by 5mm; as shown in fig. 4, the cavity between the baffle plate 3 and the side wall of the sand mould cavity forms a pouring cavity 21; the cavity between the baffle plate 3 and the filter screen 4 forms an inoculation cavity 24, the cavity between the filter screen 4 and the side wall of the sand mold cavity forms an inflow cavity 25, and the volume ratio of the pouring cavity 21 to the inoculation cavity 24 to the inflow cavity 25 is 2:1:1, so that the rapid and stable pouring of molten iron is realized; the bottom of the inflow cavity 25 is provided with a straight gate 26, the diameter of the straight gate 26 is 55mm, and the height is 25mm; the clamp plate 5 is equipped with to the top of baffle 3 and filter screen 4, clamp plate 5 is hollow structure's 45 steel sheet, and baffle 3 and foam ceramic filter screen 4 can not come up when guaranteeing to pour, and the middle part is provided with the opening, makes things convenient for special automatic control mechanism to add the inoculation piece regularly and quantitatively, conveniently observes molten iron flow state simultaneously.

Further, as shown in fig. 3 and 4, a pair of insert casting lifting lugs 11 are respectively arranged on two outer sides of the sand box 1 in the length direction, so that the sand box 1 is convenient to clean, lift and put. A baffle groove 22 is arranged in the inner cavity of the sand mould, and the baffle is arranged in the baffle groove 22. A filter screen groove 23 is formed in the inner cavity of the sand mold, and the filter screen 4 is arranged in the filter screen groove 23.

The bottom surface of the baffle plate 3 is higher than the bottom surface of the pouring cavity 21, so that the molten iron can smoothly flow in the pouring process, the molten iron in the pouring cavity 21 and the inoculation cavity 24 can reach a certain height, primary slag in the molten iron is blocked from entering the inoculation cavity 24, the molten iron is prevented from rapidly flushing the foam ceramic filter screen 4, timely melting of inoculation blocks in the inoculation cavity 24 is facilitated, and the optimal inoculation effect is realized.

According to the utility model, the bottom surface of the foam ceramic filter screen 4 stretches into the inner bottom surface of the sand mould body 2, so that the iron liquid in the inoculation cavity 24 is ensured to completely pass through the foam ceramic filter screen 4 and then enter the inflow cavity 25, the iron liquid is ensured to completely filter and adsorb oxide inclusions in the iron liquid, the iron liquid is changed from turbulent flow into laminar flow and enters the straight gate 26, and the defect of oxide slag inclusion of castings is effectively eliminated.

The tops of the baffle plate 3 and the foam ceramic filter screen 4 are flush with the top of the sand mould body 2, so that the baffle plate 3 and the foam ceramic filter screen 4 are prevented from being crushed by the pressing plate 5 above, the baffle plate 3 and the foam ceramic filter screen 4 are prevented from floating upwards, and the stable casting process is ensured.

The working principle and the using flow of the utility model are as follows:

during pouring, molten iron firstly enters the pouring cavity 21, then flows into the inoculation cavity 24 through the lower end of the baffle plate 3, the baffle plate 3 blocks primary slag in the molten iron at the moment, inoculation blocks added in a timing and quantitative mode through an external special automatic control mechanism are continuously melted in the inoculation cavity 24, then the molten iron enters the inflow cavity 25 through the foam ceramic filter screen 4, oxide inclusions in the molten iron are filtered in the process, and finally pure molten iron flows through the straight gate 26 and enters the cavity.

Claims (7)

1. The utility model provides a casting filter residue pouring basin which characterized in that: the sand box comprises a sand box (1), wherein a sand mould body (2) is arranged in the sand box (1), a baffle plate (3) and a filter screen (4) are arranged in the middle of the sand mould body (2), and the baffle plate (3) and the filter screen (4) divide the sand mould body (2) into a pouring cavity (21), an inoculation cavity (24) and an inflow cavity (25); wherein, a cavity between the baffle plate (3) and the inner side wall of the sand mould body (2) forms a pouring cavity (21); the cavity between the baffle plate (3) and the filter screen (4) forms an inoculation cavity (24), and the cavity between the filter screen (4) and the inner side wall of the sand mould body (2) forms an inflow cavity (25); the bottom of the inflow cavity (25) is provided with a straight gate (26); a pressing plate (5) is arranged above the baffle plate (3) and the filter screen (4), and the pressing plate (5) is provided with an opening.

2. The casting residue pouring cup of claim 1, wherein: two outer side surfaces of the sand box (1) in the length direction are respectively provided with a pair of insert casting lifting lugs (11).

3. The casting residue pouring cup of claim 1, wherein: the volume ratio of the pouring cavity (21), the inoculating cavity (24) and the inflow cavity (25) is 2:1:1.

4. The casting residue pouring cup of claim 1, wherein: the filter screen (4) is a foam ceramic filter screen.

5. The casting residue pouring cup of claim 1, wherein: a baffle groove (22) is formed in the inner cavity of the sand mold, and the baffle is arranged in the baffle groove (22).

6. The casting residue pouring cup of claim 1, wherein: a filter screen groove (23) is formed in the sand mould body (2), and the filter screen (4) is arranged in the filter screen groove (23).

7. The casting residue pouring cup of claim 1, wherein: the top of the baffle plate (3) and the filter screen (4) are flush with the top of the sand mould body (2).