CN114309472A

CN114309472A - A white mould of integral type air flue psammitolite for disappearance mould cylinder cap

Info

Publication number: CN114309472A
Application number: CN202210034803.3A
Authority: CN
Inventors: 梁守友
Original assignee: ANHUI QUANCHAI TIANHE MACHINERY CO LTD
Current assignee: ANHUI QUANCHAI TIANHE MACHINERY CO LTD
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-04-12

Abstract

The invention discloses an integrated air flue sand core white mold for a lost foam cylinder cover, which comprises a white mold base body, wherein a cylinder cover mold cavity is formed in the white mold base body, a plurality of air flue mold cavities are formed in one side, located in the cylinder cover mold cavity, of the white mold base body, the cylinder cover mold cavity is communicated with the air flue mold cavities, a pouring gate is formed in the top surface of the white mold base body and communicated with the cylinder cover mold cavity, a first top groove and a second top groove are formed in the top surface of the white mold base body and are parallel to each other, the first top groove is located in the top surface of the cylinder cover mold cavity, and the second top groove is located in the top surface of the air flue mold cavities. The invention uses the integrated forming design, compared with the traditional white mould formed by bonding two split templates, the phenomenon of dislocation between the templates due to different expansion coefficients can not occur, the casting quality is improved, and in addition, the square frame type liquid pipe is arranged, so that the temperature control and cooling can be carried out on the white mould matrix if necessary, and the forming quality is ensured.

Description

A white mould of integral type air flue psammitolite for disappearance mould cylinder cap

Technical Field

The invention relates to the technical field of lost foam casting molds, in particular to an integrated air flue sand core white mold for a lost foam cylinder cover.

Background

Lost foam casting (also called solid mold casting) is a novel casting method for bonding and combining paraffin or foam models with similar sizes and shapes of castings into a model cluster, brushing refractory paint and drying, burying the model cluster in dry quartz sand for vibration modeling, pouring under negative pressure to gasify the model, enabling liquid metal to occupy the position of the model, solidifying and cooling to form the castings, most of the existing engine cylinder covers are cast by using the casting method, a cylinder cover white mold is required to be used during casting, in the existing solid mold casting, the cylinder cover white mold is manufactured by slicing, and the cylinder cover white mold is formed by bonding the white mold with hot melt adhesive or cold glue after curing, and the white mold has the following defects when in use:

when casting, the white mould is heated the inflation, because the white mould is made for the burst, when being heated inhomogeneous, the seam crossing can take place the aversion phenomenon, influences the cylinder cap shaping quality, in addition, when the casting, the temperature is uncontrollable, and the high temperature crosses lowly and all can influence the expansion coefficient, influences the casting quality.

For this reason we propose an integral air passage sand core white mold for a lost foam cylinder head to solve the above problems.

Disclosure of Invention

The invention aims to provide an integrated air flue sand core white mold for a lost foam mold cylinder cover, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an integrated air flue sand core white mold for a lost foam cylinder cover comprises a white mold base body, wherein a cylinder cover mold cavity is formed in the white mold base body, a plurality of air flue mold cavities are formed in one side, located in the cylinder cover mold cavity, of the white mold base body, the cylinder cover mold cavity is communicated with the air flue mold cavities, a pouring gate is formed in the top surface of the white mold base body, and the pouring gate is communicated with the cylinder cover mold cavity;

first top recess and second top recess are seted up to white mould base top surface, first top recess and second top recess are parallel to each other, first top recess is located cylinder cap die cavity top surface, second top recess is located a plurality of air flue die cavity top surface positions, the fixed square frame type liquid pipe of scarf joint of white mould base internal portion, square frame type liquid pipe both sides are located under first top recess and the second top recess respectively.

Preferably, square frame type liquid pipe both sides are located cylinder cap die cavity and air flue die cavity top respectively, it sets up a plurality of protruding die cavities, a plurality of to be located cylinder cap die cavity top surface in the white mould base body, and is a plurality of protruding die cavity all communicates the cylinder cap die cavity, white mould base body top surface is located a plurality of protruding die cavity top surfaces of a plurality of rigid couplings disk respectively.

Preferably, the top surface of the square frame-shaped liquid pipe corresponds to a first top groove position and is fixedly connected with a plurality of first injection pipes, the top surface of the square frame-shaped liquid pipe corresponds to a second top groove position and is fixedly connected with a plurality of second injection pipes, the first injection pipes and the second injection pipes are all communicated with the square frame-shaped liquid pipe, the bottom surface of the first top groove is provided with a plurality of first injection holes, the first injection pipes are respectively inserted into the first injection holes, the bottom surface of the second top groove is provided with a plurality of second injection holes corresponding to the second injection pipes, and the second injection pipes are respectively inserted into the second injection holes.

Preferably, the side wall of the white mold base body is provided with a side groove corresponding to the side wall of the square frame-shaped liquid pipe, one side of the side wall of the square frame-shaped liquid pipe close to the side groove is fixedly connected with a plurality of water outlet pipes, the side groove side wall is provided with a plurality of water outlet holes, and the plurality of water outlet pipes are respectively inserted into the plurality of water outlet holes.

Preferably, cylinder cap die cavity, air flue die cavity and protruding die cavity inside wall all rigid coupling dope layer, dope layer inside wall rigid coupling paraffin layer.

Preferably, the coating layer is 680 epoxy resin coating with the Baume degree of 32, and the paraffin layer is No. 56 fully refined paraffin.

Compared with the prior art, the invention has the beneficial effects that:

the invention uses the integrated forming design, compared with the traditional white mould formed by bonding two split templates, the phenomenon of dislocation between the templates due to different expansion coefficients can not occur, the casting quality is improved, and in addition, the square frame type liquid pipe is arranged, so that the temperature control and cooling can be carried out on the white mould matrix if necessary, and the forming quality is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention.

In the figure: 1. a white mold base; 2. a square frame-shaped liquid pipe; 11. a cylinder cover die cavity; 12. an air passage mold cavity; 13. a bulge die cavity; 14. thickening the round piece; 15. a first top groove; 16. a second top groove; 17. a side groove; 18. a first injection hole; 19. a second injection hole; 110. a water outlet hole; 111. a coating layer; 112. a paraffin layer; 113. a pouring gate; 21. a first injection pipe; 22. a second injection pipe; 23. and (5) discharging a water pipe.

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.

Example 1:

referring to fig. 1-2, the present invention provides a technical solution: an integrated air flue sand core white mold for a lost foam cylinder cover comprises a white mold base body 1, a cylinder cover mold cavity 11 is formed in the white mold base body 1, a plurality of air flue mold cavities 12 are formed in the white mold base body 1 and are positioned on one side of the cylinder cover mold cavity 11, the cylinder cover mold cavity 11 is communicated with the air flue mold cavities 12, a pouring port (113) is formed in the top surface of the white mold base body 1, and the pouring port 113 is communicated with the cylinder cover mold cavity 11;

the invention discloses a mould, which is characterized in that a first top groove 15 and a second top groove 16 are formed in the top surface of a white mould base body 1, the first top groove 15 and the second top groove 16 are parallel to each other, the first top groove 15 is positioned on the top surface of a cylinder cover mould cavity 11, the second top groove 16 is positioned on the top surfaces of a plurality of air flue mould cavities 12, a square frame-shaped liquid pipe 2 is fixedly embedded in the white mould base body 1, two sides of the square frame-shaped liquid pipe 2 are respectively positioned under the first top groove 15 and the second top groove 16, and when the mould is used, molten metal is poured into the cylinder cover mould cavity 11 through a pouring gate 113 for forming.

Example 2:

referring to fig. 2, two sides of the square frame-shaped liquid pipe 2 are respectively located above the cylinder cover cavity 11 and the air flue cavity 12, the inside of the white mold base 1 is located on the top surface of the cylinder cover cavity 11 and provided with a plurality of protruding mold cavities 13, the protruding mold cavities 13 are all communicated with the cylinder cover cavity 11, the top surface of the white mold base 1 is located on the top surfaces of the protruding mold cavities 13 and fixedly connected with a plurality of thickened wafers 14, the thickened wafers 14 are arranged additionally, the wall thickness of the protruding mold cavities 13 is enhanced, and the molding quality of the protruding mold cavities 13 is guaranteed.

Referring to fig. 2, a plurality of first injection pipes 21 are fixedly connected to the top surface of the square frame-shaped liquid pipe 2 corresponding to the first top groove 15, a plurality of second injection pipes 22 are fixedly connected to the top surface of the square frame-shaped liquid pipe 2 corresponding to the second top groove 16, the plurality of first injection pipes 21 and the plurality of second injection pipes 22 are both communicated with the square frame-shaped liquid pipe 2, a plurality of first injection holes 18 are formed in the bottom surface of the first top groove 15, the plurality of first injection pipes 21 are respectively inserted into the plurality of first injection holes 18, a plurality of second injection holes 19 are formed in the bottom surface of the second top groove 16 corresponding to the plurality of second injection pipes 22, and the plurality of second injection pipes 22 are respectively inserted into the plurality of second injection holes 19.

Referring to fig. 2, a side groove 17 is formed in a position, corresponding to a side wall of the square frame-shaped liquid pipe 2, of a side wall of the white mold base 1, a plurality of water outlet pipes 23 are fixedly connected to a side, close to the side groove 17, of the side wall of the square frame-shaped liquid pipe 2, a plurality of water outlet holes 110 are formed in the side wall of the side groove 17, the plurality of water outlet pipes 23 are respectively inserted into the plurality of water outlet holes 110, and if necessary, the first injection pipe 21, the second injection pipe 22 and the water outlet pipes 23 are connected into a liquid cooling mechanism, so that the white mold base 1 can be cooled and controlled in temperature, and the mold forming quality is improved.

Referring to fig. 2, the inner side walls of the cylinder head mold cavity 11, the air passage mold cavity 12 and the bulge mold cavity 13 are fixedly connected with a coating layer 111, and the inner side wall of the coating layer 111 is fixedly connected with a paraffin layer 112.

Referring to fig. 2, the coating layer 111 is 680 epoxy resin coating with baume degree of 32, the paraffin layer 112 is 56 # fully refined paraffin, the coating layer 111 is immersed on the surface of the mold cavity, the paraffin layer 112 is melted and then immersed on the surface of the mold cavity, and after solidification, the coating layer is heated and baked, so that the redundant paraffin on the surface flows out.

Example 3:

when the invention is used, molten metal is poured into the cylinder cover die cavity 11 through the pouring gate 113 for molding, if necessary, the first injection pipe 21, the second injection pipe 22 and the water outlet pipe 23 are connected into the liquid cooling mechanism, so that the temperature of the white die base body 1 can be reduced and controlled, and the molding quality of the die is improved.

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. The utility model provides an integral type air flue psammitolite white mould for disappearance mould cylinder cap, includes white mould base member (1), its characterized in that:

a cylinder cover mold cavity (11) is formed in the white mold base body (1), a plurality of air passage mold cavities (12) are formed in the white mold base body (1) and located on one side of the cylinder cover mold cavity (11), the cylinder cover mold cavity (11) is communicated with the air passage mold cavities (12), a pouring gate (113) is formed in the top surface of the white mold base body (1), and the pouring gate (113) is communicated with the cylinder cover mold cavity (11);

first top recess (15) and second top recess (16) are seted up to white mould base member (1) top surface, first top recess (15) and second top recess (16) are parallel to each other, first top recess (15) are located cylinder cap die cavity (11) top surface, second top recess (16) are located a plurality of air flue die cavity (12) top surface positions, white mould base member (1) inside fixed scarf joint square frame type liquid pipe (2), square frame type liquid pipe (2) both sides are located first top recess (15) and second top recess (16) under the position respectively.

2. The integrated air passage sand core white mold for the lost foam cylinder cover according to claim 1, characterized in that: square frame type liquid pipe (2) both sides are located cylinder cap die cavity (11) and air flue die cavity (12) top respectively, a plurality of protruding die cavities (13) are seted up, a plurality of to the inside cylinder cap die cavity (11) top surface that is located of white mould base member (1) protruding die cavity (13) all communicate cylinder cap die cavity (11), white mould base member (1) top surface is located a plurality of protruding die cavity (13) top surfaces respectively a plurality of thickening disk (14) of rigid coupling.

3. The integrated air passage sand core white mold for the lost foam cylinder cover according to claim 1, characterized in that: the utility model discloses a square frame type liquid pipe (2) top surface corresponds a plurality of first injection pipes (21) of first top recess (15) position rigid coupling, square frame type liquid pipe (2) top surface corresponds a plurality of second injection pipes (22) of second top recess (16) position rigid coupling, and is a plurality of first injection pipe (21) and a plurality of second injection pipe (22) all communicate square frame type liquid pipe (2), a plurality of first injection holes (18) are seted up to first top recess (15) bottom surface, and are a plurality of first injection pipe (21) are pegged graft respectively in a plurality of first injection holes (18), a plurality of second injection holes (19) are seted up to second top recess (16) bottom surface corresponding a plurality of second injection pipe (22) position, and are a plurality of second injection pipe (22) are pegged graft respectively in a plurality of second injection holes (19).

4. The integrated air passage sand core white mold for the lost foam cylinder cover according to claim 3, wherein: the white mould base member (1) lateral wall corresponds square frame type liquid pipe (2) lateral wall position and sets up side recess (17), square frame type liquid pipe (2) lateral wall is close a plurality of outlet pipes (23) of near side recess (17) one side rigid coupling, a plurality of apopores (110) are seted up to side recess (17) lateral wall, and is a plurality of outlet pipe (23) are pegged graft respectively in a plurality of apopores (110).

5. The integrated air passage sand core white mold for the lost foam cylinder cover as recited in claim 2, wherein: the cylinder cover die cavity (11), the air flue die cavity (12) and the inner side wall of the protruding die cavity (13) are fixedly connected with a coating layer (111), and the inner side wall of the coating layer (111) is fixedly connected with a paraffin layer (112).

6. The integrated air passage sand core white mold for the lost foam cylinder cover according to claim 5, wherein: the coating layer (111) is 680 epoxy resin coating with Baume degree of 32, and the paraffin layer (112) is No. 56 fully refined paraffin.