CN211803692U

CN211803692U - Engine piston casting die utensil

Info

Publication number: CN211803692U
Application number: CN202020279657.7U
Authority: CN
Inventors: 王艳利; 李世清; 李新
Original assignee: Jiangsu Baian Technology Co ltd
Current assignee: Jiangsu Baian Technology Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-30
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses an engine piston casting die utensil, including top board and bottom plate, the bottom plate bottom surface is provided with the recess, the recess below is provided with the picture peg, the picture peg below is provided with the mounting panel, mounting panel below four corners department is provided with the pad foot. Has the advantages that: the utility model discloses a design minute flow surface and ingate, can make liquid stream divide into two parts with liquid before the core and flow into the core, not only shortened the solidification time of metal liquid, and can effectually avoid the formation of piston surface shrinkage cavity, through the design mounting panel, pad foot and screw thread post, can adjust its pad foot that corresponds when the mould is unstable, can be steady with the device overall adjustment, and then avoided the inside inhomogeneous solidification of liquid of core, and then guaranteed the qualification rate of product, and quickened the job schedule.

Description

Engine piston casting die utensil

Technical Field

The utility model relates to a casting die utensil technical field, concretely relates to engine piston casting die utensil.

Background

The casting method is a method of melting gold and silver into liquid state, and making ware by casting with a master mould, which is one of the earliest gold and silver processing methods. The casting is to cast the mixed slurry into the engine shell, and the engine charge meeting the design requirement is formed after solidification.

At present, most molds are long in casting process, because the length of a piston is long, the casting time is long, shrinkage cavities are generated on the surface of the edge of the piston, the surface quality of the piston is affected, and when most molds work on uneven planes, the leveling of the molds is difficult, so that liquid in a mold core cannot be uniformly solidified, the piston is scrapped, and the work progress is affected by the improvement of the reject ratio, so that the problems are urgently needed to be solved by the casting mold for the engine piston.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the engine piston casting mold is provided, and the problems that in the casting process, shrinkage cavities are generated on the surface of the piston edge due to long length and long casting time, the surface quality of the piston is affected, and the mold is difficult to level when most molds work on uneven planes, so that liquid in a mold core cannot be uniformly solidified, the piston is scrapped, and the work progress is affected due to the improvement of the reject ratio are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides an engine piston casting die utensil, including top board and bottom plate, the bottom plate bottom surface is provided with the recess down, the recess below is provided with the picture peg, the picture peg below is provided with the mounting panel, mounting panel below four corners department is provided with the pad foot, the one end that the pad foot is close to the mounting panel is provided with the screw thread post, be provided with the core in the bottom plate, the both ends of core are provided with the gas pocket, the top of gas pocket is provided with the thread groove, be provided with the bolt in the thread groove, the bottom plate top is provided with the top board, the top board top is provided with waters outward, water in the middle part is provided with in the top board, it is provided with the reposition of redundant personnel face to water the.

Furthermore, the outer pouring gate is connected with the inner pouring gate, and the upper positioning plate and the lower positioning plate are both formed with the thread grooves.

By adopting the technical scheme, the metal liquid in the outer pouring channel can be directly fed into the inner pouring channel, so that the position of the thread groove is fixed.

Further, the upper positioning plate and the lower positioning plate are connected through the bolt.

By adopting the technical scheme, the upper positioning plate and the lower positioning plate can be firmly connected.

Furthermore, two channels are arranged below the flow distribution surface, and the flow distribution surface is formed on the upper positioning plate.

By adopting the technical scheme, the position of the flow dividing surface can be fixed.

Further, the air hole and the groove are formed in the lower positioning plate, and the lower positioning plate is connected with the plug board in an inserting mode.

By adopting the technical scheme, the positions of the air hole and the groove can be fixed, and the lower positioning plate and the mounting plate are firmly connected.

Further, the mold core is formed on the lower positioning plate.

By adopting the technical scheme, the position of the mold core can be fixed.

Furthermore, the threaded column is formed on the foot pad, and the mounting plate is rotatably connected with the foot pad.

By adopting the technical scheme, the position of the threaded column can be determined, and the mounting plate and the foot pad are firmly connected.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1. for solving at the casting in-process, because piston length is longer, the casting time is long, leads to piston limit surface to produce the shrinkage cavity, influences the problem of the surface quality of piston, the utility model discloses a design minute flow surface and ingate, can make liquid flow divide into two parts with liquid before the core and flow into the core, not only shortened the solidification time of metal liquid, can effectually avoid the formation of piston surface shrinkage cavity moreover.

2. For solving most mould during operation on the plane of unevenness, mould leveling difficulty causes the inside liquid of core can not even solidify, leads to the piston to scrap to the improvement of defective rate influences the problem of job schedule, the utility model discloses a design mounting panel, pad foot and screw thread post can adjust its pad foot that corresponds when the mould is unstable, can be steady with device overall adjustment, and then avoided the inside liquid of core inhomogeneous to solidify, and then guaranteed the qualification rate of product for job schedule.

Drawings

FIG. 1 is a schematic structural diagram of an engine piston casting mold according to the present invention;

FIG. 2 is a main sectional view of a rear lower positioning plate and an upper positioning plate in the engine piston casting mold according to the present invention;

FIG. 3 is a schematic view of the connection relationship between the mounting plate and the pad in the casting mold for the engine piston according to the present invention.

The reference numerals are explained below:

1. a bolt; 2. an outer pouring channel; 3. an upper positioning plate; 4. a lower positioning plate; 5. inserting plates; 6. mounting a plate; 7. a foot pad; 8. air holes; 9. a flow dividing surface; 10. an inner pouring channel; 11. a thread groove; 12. a core; 13. a groove; 14. a threaded post.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the engine piston casting mold in this embodiment includes an upper positioning plate 3 and a lower positioning plate 4, a groove 13 is provided on a bottom surface of the lower positioning plate 4, an insert plate 5 is provided below the groove 13, a mounting plate 6 is provided below the insert plate 5, a pad 7 is provided at four corners below the mounting plate 6, a threaded post 14 is provided at one end of the pad 7 close to the mounting plate 6, a core 12 is provided in the lower positioning plate 4, air holes 8 are provided at two ends of the core 12, a threaded groove 11 is provided above the air hole 8, a bolt 1 is provided in the threaded groove 11, an upper positioning plate 3 is provided above the lower positioning plate 4, an outer runner 2 is provided above the upper positioning plate 3, an inner runner 10 is provided in a middle portion of the upper positioning plate 3, and.

As shown in fig. 1-3, in this embodiment, the outer runner 2 is connected to the inner runner 10, the upper positioning plate 3 and the lower positioning plate 4 are both formed with a thread groove 11, so that the molten metal in the outer runner 2 can be directly fed into the inner runner 10, so that the position of the thread groove 11 is fixed, the upper positioning plate 3 and the lower positioning plate 4 are connected by the bolt 1, so that the upper positioning plate 3 and the lower positioning plate 4 can be firmly connected, two channels are arranged below the diversion surface 9, the diversion surface 9 is formed on the upper positioning plate 3, so that the position of the diversion surface 9 can be fixed, the air hole 8 and the groove 13 are both formed on the lower positioning plate 4, the lower positioning plate 4 is inserted into the insert plate 5, so that the air hole 8 and the groove 13 are fixed, so that the lower positioning plate 4 and the mounting plate 6 are firmly connected, the core 12 is formed on the lower positioning plate 4, so that the position of the core 12 is fixed, the mounting plate 6 and the foot pad 7 are rotatably connected, so that the position of the threaded column 14 can be determined, and the mounting plate 6 and the foot pad 7 are firmly connected.

The specific implementation process of this embodiment is as follows: when the piston is cast, lower locating plate 4 is fixed on mounting panel 6 through picture peg 5, adjust the whole balance of transferring of mould through adjustment base 7 afterwards, and then the inhomogeneous solidification of the inside liquid of core 12 has been avoided, and then the qualification rate of product has been guaranteed, the operation progress has been accelerated, rethread bolt 1 is with upper locating plate 3 and lower locating plate 4 firm in connection, at last through outer runner 2 with in pouring metal liquid to inner runner 10, the reposition of redundant personnel face 9 of inner runner 10 below is divided into two parts with metal liquid and is flowed to in the core 12, the solidification time of metal liquid has not only been shortened, and can effectually avoid the formation of piston surface shrinkage cavity, after taking the heat dissipation, take out bolt 1, open upper location 3 and can follow west locating plate 4 and take out the piston.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides an engine piston casting die utensil which characterized in that: comprises an upper positioning plate (3) and a lower positioning plate (4), wherein a groove (13) is arranged on the bottom surface of the lower positioning plate (4), a plugboard (5) is arranged below the groove (13), a mounting plate (6) is arranged below the plugboard (5), a pad foot (7) is arranged at the four corners below the mounting plate (6), a threaded column (14) is arranged at one end, close to the mounting plate (6), of the pad foot (7), a core (12) is arranged in the lower positioning plate (4), air holes (8) are arranged at two ends of the core (12), a threaded groove (11) is arranged above the air holes (8), a bolt (1) is arranged in the threaded groove (11), the upper positioning plate (3) is arranged above the lower positioning plate (4), an outer pouring gate (2) is arranged above the upper positioning plate (3), an inner pouring gate (10) is arranged in the middle part of the upper positioning, a flow dividing surface (9) is arranged below the inner pouring gate (10).

2. An engine piston casting mold according to claim 1, wherein: the outer pouring gate (2) is connected with the inner pouring gate (10), and the upper positioning plate (3) and the lower positioning plate (4) are both provided with the thread groove (11).

3. An engine piston casting mold according to claim 1, wherein: the upper positioning plate (3) is connected with the lower positioning plate (4) through the bolt (1).

4. An engine piston casting mold according to claim 1, wherein: two channels are arranged below the flow distribution surface (9), and the flow distribution surface (9) is formed on the upper positioning plate (3).

5. An engine piston casting mold according to claim 1, wherein: the air hole (8) and the groove (13) are formed in the lower positioning plate (4), and the lower positioning plate (4) is connected with the plug board (5) in an inserting mode.

6. An engine piston casting mold according to claim 1, wherein: the mold core (12) is formed on the lower positioning plate (4).

7. An engine piston casting mold according to claim 1, wherein: the threaded column (14) is formed on the foot pad (7), and the mounting plate (6) is rotatably connected with the foot pad (7).