CN112620588A

CN112620588A - Improved structure of lost foam hollow shell casting foam inner pouring cup

Info

Publication number: CN112620588A
Application number: CN202011450046.5A
Authority: CN
Inventors: 全晓宁
Original assignee: Beijing Dianyu Technology Co Ltd
Current assignee: Beijing Dianyu Technology Co Ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-04-09

Abstract

The invention discloses an improved structure of a foam inner pouring cup cast by a lost foam hollow shell, and relates to the technical field of inner pouring cups. The upper pouring gate is arranged at the top of the pouring cup body, the lower pouring gate is arranged at the bottom of the pouring cup body, a first layer of fire-resistant coating is coated outside the pouring cup body, a second layer of fire-resistant coating is coated outside the first layer of fire-resistant coating, a third layer of fire-resistant coating is coated outside the second layer of fire-resistant coating, a second layer of glass fiber cloth is wound outside the third layer of fire-resistant coating, a plurality of groups of equidistant cold water pipes are fixedly arranged inside the pouring cup body, the molten steel is guaranteed not to overflow and not to generate turbulence, the molten steel is prevented from being sucked in the pouring process and is combined with a model into a whole, the phenomenon that sand is easily clamped due to the combination of a box collapse and an outer pouring cup in the pouring process is prevented, the production cost is reduced, the structure is simple, the operation is easy, the quick uniform cooling effect is.

Description

Improved structure of lost foam hollow shell casting foam inner pouring cup

Technical Field

The invention relates to the technical field of inner pouring cup, in particular to an improved structure of a foam inner pouring cup cast by a lost foam hollow shell.

Background

The lost foam casting technology has become a considerable force in the casting industry abroad, and plays an important role in casting production, and is more and more widely applied and known as a novel pragmatic casting technology.

The existing casting pouring cup of the lost foam is formed by molding sand through self hardening and is a large-sized pouring cup formed by roasting refractory materials, the casting defect of sand inclusion and the like is easily generated in the pouring cup formed by the molding sand, the roasting cost of the refractory materials is higher, sand inclusion is easily generated at an inlet, the generated solid waste is environment-friendly and difficult to treat, long-time cooling is needed after pouring, and then the pouring cup can be collected.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an improved structure of a pouring cup in lost foam hollow shell casting foam, which solves the casting defects that the existing lost foam casting pouring cup is formed by molding sand self-hardening and a casting cup with a large head and a small head formed by roasting refractory materials, the pouring cup formed by molding sand is easy to generate sand inclusion and the like, the roasting cost of the refractory materials is higher, the sand inclusion is easy to generate at the inlet, the generated solid waste is environment-friendly and difficult to treat, and the pouring cup can be collected only by long-time cooling after pouring, thereby not only consuming time, but also reducing the working efficiency.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an improved structure of pouring basin in lost foam casting foam, includes pouring basin main part, the top of pouring basin main part has been seted up the runner, the bottom gate has been seted up to the bottom of pouring basin main part, the inside fixed mounting of pouring basin main part has the equidistant cold water pipe of a plurality of groups, the cold water pipe is intake end fixedly connected with total inlet tube, the water outlet end fixedly connected with total outlet pipe of cold water pipe, the outside of pouring basin main part scribbles first layer fire resistant coating, the outside of first layer fire resistant coating scribbles second floor fire resistant coating, the outside of second floor fire resistant coating scribbles third layer fire resistant coating, the outside winding of third layer fire resistant coating has first layer glass silk cloth, the outside winding of first layer glass silk cloth has second layer glass silk cloth.

Preferably, the diameter of the upper gate is larger than that of the lower gate.

Preferably, the pouring cup body is irregularly shaped as a whole.

Preferably, the cold water pipes are uniformly distributed in the pouring cup body in the circumferential direction.

Preferably, the water outlet hole of the main water inlet pipe is fixedly connected with a water inlet pipe.

Preferably, the water outlet hole of the main water outlet pipe is fixedly connected with a water outlet pipe.

Advantageous effects

The invention provides an improved structure of a foam inner pouring cup cast by a lost foam hollow shell. Compared with the prior art, the method has the following beneficial effects:

1. an improved structure of a pouring cup in lost foam hollow shell casting foam is characterized in that an upper pouring gate is arranged at the top of a pouring cup main body, a lower pouring gate is arranged at the bottom of the pouring cup main body, the diameter of the upper pouring gate is larger than that of the lower pouring gate, the pouring cup main body is in an irregular shape as a whole, a first layer of refractory coating is coated outside the pouring cup main body, a second layer of refractory coating is coated outside the first layer of refractory coating, a third layer of refractory coating is coated outside the second layer of refractory coating, a first layer of glass fiber cloth is wound outside the third layer of refractory coating, a second layer of glass fiber cloth is wound outside the first layer of glass fiber cloth, the shape of the pouring cup main body is changed, molten steel can be prevented from overflowing and generating turbulence when being injected, air suction of the molten steel in the pouring process is stopped, the molten steel is combined with a model into a whole, the coating is simultaneously arranged on the outer surface, the white mold is prevented from being exposed, and sand clamping phenomenon, the production cost is reduced, the structure is simple, and the operation is easy.

2. The utility model provides an improved structure of pouring basin in lost foam shell casting foam, there is a plurality of equidistant cold water pipes of group through the inside fixed mounting at pouring basin main part, cold water pipe water inlet end fixedly connected with total inlet tube, the play water end fixedly connected with total outlet pipe of cold water pipe, and be the even distribution of circumferencial direction in the inside of pouring basin main part, the apopore fixedly connected with inlet tube of total inlet tube, the apopore fixedly connected with outlet pipe of total outlet pipe, after the pouring is accomplished, the accessible inlet opening, in the cold water pipe of total inlet tube flow direction pouring basin inside from total inlet tube, thereby the quick even refrigerated effect that reaches, the time is saved, the work efficiency is improved, the production capacity is increased.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention;

FIG. 2 is an external view of the structure of the present invention;

FIG. 3 is a top view of the structure of the present invention.

In the figure: 1. a pouring cup body; 2. an upper gate; 3. a lower gate; 4. a cold water pipe; 5. a main water inlet pipe; 6. a water outlet pipe is arranged; 7. a water inlet pipe; 8. a water outlet pipe; 9. a first layer of fire resistant coating; 10. a second layer of fire resistant coating; 11. a third layer of fire resistant coating; 12. a first layer of glass cloth; 13. and a second layer of glass fiber cloth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an improved structure of a sprue cup in lost foam hollow shell casting foam comprises a sprue cup main body 1, wherein the whole sprue cup main body 1 is in an irregular shape, an upper sprue 2 is arranged at the top of the sprue cup main body 1, the diameter of the upper sprue 2 is larger than that of a lower sprue 3, the bottom of the sprue cup main body 1 is provided with the lower sprue 3, a plurality of groups of cold water pipes 4 with equal intervals are fixedly arranged inside the sprue cup main body 1, the cold water pipes 4 are uniformly distributed inside the sprue cup main body 1 in the circumferential direction, a main water inlet pipe 5 is fixedly connected with a water inlet pipe 4, a water outlet hole of the main water inlet pipe 5 is fixedly connected with a water inlet pipe 7, a main water outlet pipe 6 is fixedly connected with a water outlet pipe 6, a water outlet hole of the main water outlet pipe 6 is fixedly connected with a water outlet pipe 8, a first layer of refractory coating 9 is coated outside the sprue cup main body 1, a second layer of refractory coating, the second layer of fire-resistant coating 10 is coated with a third layer of fire-resistant coating 11, the third layer of fire-resistant coating 11 is wound with a first layer of glass fiber cloth 12, and the first layer of glass fiber cloth 12 is wound with a second layer of glass fiber cloth 13.

When in use, molten steel is poured into the upper pouring gate 2, because the whole pouring gate body 1 is in an irregular shape, the diameter of the upper pouring gate 2 of the pouring gate body 1 is larger than that of the lower pouring gate 3, three layers of refractory coatings are coated outside the pouring gate body 1, namely a first layer of refractory coating 9, a second layer of refractory coating 10 and a third layer of refractory coating 11, and two layers of glass fiber cloth, namely a first layer of glass fiber cloth 12 and a second layer of glass fiber cloth 13, are wound outside the third layer of refractory material 11, therefore, when in use, the molten steel is poured into the pouring gate cup of a cavity, the molten steel does not contact with molding sand, the generation of sand inclusion defects is avoided, a pouring cap system of a foam model and the model are fixedly formed and firmly, the pouring gate cup and the main pouring gate are bonded into a whole, the model and the pouring gate cup are simultaneously coated with the refractory coatings, but the three layers of refractory coatings are coated on the outer layer of the pouring gate cup, the pouring cup is characterized in that two layers of glass fiber cloth are wound on the outer surface of the pouring cup, the strength of the layers is increased, the pouring cup is dried and formed, due to the special shape of the pouring cup, molten steel cannot rotate, turbulence and air suction in the pouring cup when being injected, the molten steel is guaranteed not to overflow, the production cost is reduced, and due to the fact that a plurality of groups of cold water pipes 4 which are distributed in the circumferential direction are fixedly installed inside the pouring cup main body 1, the water inlet end and the water outlet end of each cold water pipe 4 are respectively connected with the main water inlet pipe 5 and the main water outlet pipe 6, and the water inlet pipe 7 and the water outlet pipe 8 are connected to one side of each main water inlet pipe 5 and one side of each main water outlet pipe 6, after the molten steel is injected and formed, cold water is connected into the water inlet pipe 7, flows into each cold water pipe from the main water inlet pipe 5 and then is discharged from the.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An improved structure of a pouring cup in lost foam hollow shell casting foam comprises a pouring cup main body (1) and is characterized in that an upper pouring gate (2) is arranged at the top of the pouring cup main body (1), a lower pouring gate (3) is arranged at the bottom of the pouring cup main body (1), a plurality of groups of equidistant cold water pipes (4) are fixedly arranged inside the pouring cup main body (1), a water inlet end of each cold water pipe (4) is fixedly connected with a main water inlet pipe (5), a water outlet end of each cold water pipe (4) is fixedly connected with a main water outlet pipe (6), a first layer of fire-resistant coating (9) is coated outside the pouring cup main body (1), a second layer of fire-resistant coating (10) is coated outside the first layer of fire-resistant coating (9), a third layer of fire-resistant coating (11) is coated outside the second layer of fire-resistant coating (10), a first layer of glass fiber cloth (12) is arranged outside the third layer of fire-resistant coating (11), and a second layer of glass fiber cloth (13) is wound outside the first layer of glass fiber cloth (12).

2. An improved structure of a lost foam open shell cast foam in-sprue cup according to claim 1 wherein the diameter of the up-gate (2) is larger than the diameter of the down-gate (3).

3. An improved structure of a lost foam open shell cast foam in-sprue cup according to claim 1 wherein the sprue cup body (1) is of an irregular shape throughout.

4. The improved structure of a lost foam hollow shell cast foam inner pouring cup according to claim 1, characterized in that the cold water pipes (4) are uniformly distributed in the inner part of the pouring cup main body (1) in the circumferential direction.

5. The improved structure of a lost foam hollow shell casting foam inner pouring cup as claimed in claim 1, wherein the water outlet hole of the main water inlet pipe (5) is fixedly connected with a water inlet pipe (7).

6. The improved structure of the lost foam hollow shell cast foam pouring cup according to claim 1, characterized in that the water outlet hole of the main water outlet pipe (6) is fixedly connected with a water outlet pipe (8).