CN214185140U

CN214185140U - Sand core bar or vent pipe fixing structure in horizontal split mold core box

Info

Publication number: CN214185140U
Application number: CN202022926680.3U
Authority: CN
Inventors: 张强
Original assignee: Asimco International Casting Co ltd Shanxi
Current assignee: Asimco International Casting Co ltd Shanxi; Asimco International Casting Shanxi Co Ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-14
Anticipated expiration: 2030-12-09

Abstract

The utility model provides a psammitolite core bone or breather pipe fixed knot construct in horizontal minute core box, belongs to core box technical field for the casting, can solve in the horizontal minute core box, production efficiency that fixed core bone or breather pipe structure brought is low, problem such as with high costs, including horizontal minute core box, be equipped with the die cavity in horizontal minute core box, be equipped with the recess on horizontal minute core box surface, recess and die cavity intercommunication are equipped with the bracing piece in the recess, wear to be equipped with psammitolite core bone or breather pipe on the bracing piece, and psammitolite core bone or breather pipe are located inside the die cavity. Through using the utility model discloses, saved the psammitolite healant, improved production efficiency, still increased the reliability of psammitolite intensity.

Description

Sand core bar or vent pipe fixing structure in horizontal split mold core box

Technical Field

The utility model belongs to the technical field of the core box for the casting, concretely relates to psammitolite core bone or breather pipe fixed knot construct among horizontal split die core box.

Background

When the oil duct core of the cylinder body of the national six-diesel engine is produced, a hollow core bar needs to be added on the oil duct core to solve the problem of core breakage or a vent pipe needs to be added to solve the problem of unsmooth exhaust, so that the problem of how to fix the core bar/vent pipe in a core box exists.

As shown in fig. 1, 2 and 3, in the prior art, in a horizontal split core box 1, two support frames 2 perpendicular to a core rod or a vent pipe 3 of a sand core are arranged in a cavity of the core box, and a clamping groove is arranged on each support frame 2 for fixing the core rod and the vent pipe of the sand core. In the fixing mode, a cavity is formed at the sand core forming part due to the existence of the support frame, and a core making person needs to repair the cavity by using a specific sand core repairing agent for continuous use. Therefore, the structure not only affects the production efficiency, but also increases the labor and material costs.

Disclosure of Invention

The utility model discloses an in solving horizontal split core box, the production efficiency that fixed core bone or breather pipe structure brought is low, and problem such as with high costs provides a psammitolite core bone or breather pipe fixed knot construct in horizontal split core box.

The utility model adopts the following technical scheme:

a sand core bone or vent pipe fixing structure in a horizontal split mold core box comprises the horizontal split mold core box, a cavity is arranged in the horizontal split mold core box, a groove is formed in the surface of the horizontal split mold core box and communicated with the cavity, a support rod is arranged in the groove, a sand core bone or a vent pipe penetrates through the support rod, and the sand core bone or the vent pipe is located inside the cavity.

The utility model has the advantages as follows:

compared with the prior art, the utility model discloses used the bracing piece of establishing in the recess, the structure of installation psammitolite core bone or breather pipe on the bracing piece, after the compound die, penetrated sand system core, reduced the auxiliary member (like the support frame) in the die cavity. The shape of the sand core is very complete. And the process of manually repairing the cavity of the sand core by using the specific sand core repairing agent is also reduced, so that the sand core repairing agent is saved, the production efficiency is improved, and the reliability of the sand core strength is also improved.

Drawings

FIG. 1 is a schematic structural view of a conventional fixing device;

FIG. 2 is a schematic view of a mounting position of a support frame of a conventional device;

FIG. 3 is a schematic view of a conventional supporting frame;

FIG. 4 is a schematic view of a sand core rib or vent tube configuration;

fig. 5 is a schematic structural view of the present invention;

FIG. 6 is a schematic diagram of the position of the groove on the horizontal split core box according to the present invention;

FIG. 7 is an enlarged view of a portion A of FIG. 6;

fig. 8 is a schematic view of the installation position of the cylindrical magnet according to the present invention;

FIG. 9 is an enlarged view of part B of FIG. 8;

FIG. 10 is a view showing the assembly structure of the supporting rod and the core bar or the vent pipe of the sand core according to the present invention;

fig. 11 is a schematic view of the supporting rod structure of the present invention;

wherein: 1-horizontally dividing a die core box; 2-a support frame; 3-sand core ribs or breather pipes; 4-a groove; 5-positioning holes; 6-cylindrical magnet; 7-support bar.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 5, 6 and 7, the fixing structure for the sand core ribs or the vent pipes in the horizontal split mold core box comprises a horizontal split mold core box 1, a cavity is arranged in the horizontal split mold core box 1, a groove 4 is arranged on the surface of the horizontal split mold core box, the groove 4 is communicated with the cavity, a support rod 7 is arranged in the groove 4, the sand core ribs or the vent pipes 3 penetrate through the support rod 7, and the sand core ribs or the vent pipes 3 are positioned in the cavity.

As shown in fig. 8 and 9, a positioning hole 5 is formed at the bottom of the groove 4, a cylindrical magnet 6 is arranged in the positioning hole 5, the support rod 7 is made of iron, and the support rod 7 is fixed in the groove 4 through the cylindrical magnet 6.

As shown in fig. 10 and 11, the supporting rod 7 is a two-step cylinder, and includes an upper step cylinder and a lower step cylinder, the diameter of the upper step cylinder is smaller than that of the lower step cylinder, and the sand core bar or the vent pipe 3 is inserted into the upper step cylinder with a small diameter.

The free end of the upper stepped cylinder is a pointed end.

After the sand shooting and core making are finished, the supporting rod 7 can be directly pulled out after the sand core is taken out from the core box, and the sand core can be repeatedly used. The shape of the sand core is very complete. The process of manually repairing the cavity of the sand core by using the specific sand core repairing agent is reduced, so that the sand core repairing agent is saved, the production efficiency is improved, and the reliability of the sand core strength is also improved.

Claims

1. The utility model provides a psammitolite core bone or breather pipe fixed knot construct in horizontal divide die core box, includes horizontal divide die core box (1), is equipped with the die cavity in horizontal divide die core box (1), its characterized in that: a groove (4) is formed in the surface of the horizontal split mold core box, the groove (4) is communicated with the mold cavity, a support rod (7) is arranged in the groove (4), a sand core rod or a vent pipe (3) penetrates through the support rod (7), and the sand core rod or the vent pipe (3) is located inside the mold cavity.

2. The sand core framework or vent pipe fixing structure in the horizontal split mold core box according to claim 1, characterized in that: the bottom of the groove (4) is provided with a positioning hole (5), a cylindrical magnet (6) is arranged in the positioning hole (5), the supporting rod (7) is made of iron, and the supporting rod (7) is fixed in the groove (4) through the cylindrical magnet (6).

3. The sand core framework or vent pipe fixing structure in the horizontal split mold core box according to claim 2, characterized in that: the number of the positioning holes (5) is two, and the positioning holes are symmetrically arranged relative to the axis of the groove (4).

4. The sand core framework or vent pipe fixing structure in the horizontal split mold core box according to claim 3, characterized in that: the bracing piece (7) are two ladder cylinders, including last ladder cylinder and lower ladder cylinder, go up the diameter of ladder cylinder and be less than lower ladder cylinder, wherein sand core bone or breather pipe (3) are inserted on the last ladder cylinder of minor diameter.

5. The sand core framework or vent pipe fixing structure in the horizontal split mold core box according to claim 4, characterized in that: the free end of the upper stepped cylinder is a pointed end.