CN215544747U

CN215544747U - Mould for balance cylinder pouring production

Info

Publication number: CN215544747U
Application number: CN202121745371.4U
Authority: CN
Inventors: 陆建华; 王秋新
Original assignee: CHANGZHOU JULING FOUNDRY CO LTD
Current assignee: CHANGZHOU JULING FOUNDRY CO LTD
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-18
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a mold for casting production of a balance cylinder, which comprises an upper mold, a lower mold and a sand core, wherein mold cavities are formed in the lower end surface of the upper mold and the upper end surface of the lower mold, the mold cavities on the upper side and the lower side are matched to form a molding cavity, the sand core is placed in the molding cavity in a matching manner, and a hot runner communicated with the molding cavity is arranged on the lower mold. The horizontal casting mold is simple in structure and convenient to use, after horizontal modeling, the mold is erected, and the metal liquid is poured into the molding cavity through the sprue so as to complete casting.

Description

Mould for balance cylinder pouring production

Technical Field

The utility model relates to the technical field of molds, in particular to a mold for casting production of a balance cylinder.

Background

The balance cylinder 7 (shown in fig. 1 and 2) for the robot, which is produced by my company, is 40 kg in weight, the wall thickness of a main cylinder is 6.5mm, the length is 490mm, the width is 293mm, a mold (shown in a pouring schematic diagram in fig. 3) used in original production pouring is provided, a cavity in a forming cavity is filled with a sand core, horizontal pouring is performed after horizontal shaping, and the wall thickness of the cylinder body is thin at the top and thick at the bottom due to floating and bending of the sand core forming the inner cavity of a casting under the action of buoyancy in the pouring process, so that the balance cylinder is scrapped due to large wall thickness difference.

Therefore, it is necessary to invent a mold for casting production of balance cylinder to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mould for casting production of a balance cylinder, which is used for solving the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a mould is used in balance cylinder pouring production, includes mould, lower mould and psammitolite, all have the die cavity on the lower terminal surface of last mould and the up end of lower mould, form into the die cavity behind the die cavity compound die of upper and lower both sides, the psammitolite matches places at the die cavity inside, be equipped with the hot runner that communicates in the die cavity on the lower mould, the hot runner includes sprue and ingate, ingate one end and shaping chamber intercommunication, the other end and sprue intercommunication, the sprue tip is provided with the sprue, the sprue sets up on the lateral wall of lower mould.

Preferably, the lower end surface of the upper die is provided with a plurality of guide grooves.

Preferably, the upper end surface of the lower mold is provided with a plurality of guide rods.

Preferably, the guide rod is matched with the guide groove.

The utility model has the technical effects and advantages that: the horizontal casting mold is simple in structure and convenient to use, after horizontal modeling, the mold is erected, and the metal liquid is poured into the molding cavity through the sprue so as to complete casting.

Drawings

Fig. 1 is a schematic structural view of a balance cylinder.

Fig. 2 is a schematic sectional view of the balancing cylinder.

Fig. 3 is a schematic view of a conventional mold.

Fig. 4 is a schematic cross-sectional view of the upper mold of the present invention.

FIG. 5 is a schematic cross-sectional view of the lower mold of the present invention.

FIG. 6 is a schematic casting diagram of the present invention.

In the figure: 1 upper die, 2 lower die, 3 sand core, 4 runner, 5 ingate and 6 sprue.

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.

The utility model provides a mould for casting production of a balance cylinder as shown in figures 4-6, which comprises an upper mould 1, a lower mould 2 and a sand core 3, wherein the lower end surface of the upper mould 1 and the upper end surface of the lower mould 2 are both provided with a cavity, the cavities on the upper side and the lower side are matched to form a forming cavity, the sand core 3 is placed in the forming cavity in a matching way, the lower mould 2 is provided with a hot runner communicated with the forming cavity, and the mould is characterized in that: the hot runner comprises a cross gate 4 and an inner gate 5, one end of the inner gate 5 is communicated with the molding cavity, the other end of the inner gate is communicated with the cross gate 4, a sprue 6 is arranged at the end part of the cross gate 4, and the sprue 6 is arranged on the side wall of the lower die 2.

Further, in the above technical solution, the lower end surface of the upper die 1 is provided with a plurality of guide grooves;

further, in the above technical solution, the upper end surface of the lower die 2 is provided with a plurality of guide rods;

further, in the above technical solution, the guide rod is adapted to the guide groove.

This practical theory of operation:

after the die is assembled, the whole die is erected, the sprue 6 faces upwards, and at the moment, the metal liquid is poured into the forming cavity through the sprue 6, so that pouring is completed, in the process, the buoyancy force borne by the sand core 3 in the erected state can be greatly reduced, the sand core 3 can be effectively prevented from being bent, and the wall thickness of the barrel body is ensured to be uniform all around.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a mould is used in balance cylinder pouring production, includes mould, lower mould and psammitolite, all have the die cavity on the lower terminal surface of last mould and the up end of lower mould, form into the die cavity behind the die cavity compound die of upper and lower both sides, the psammitolite matches places in the shaping intracavity portion, be equipped with the hot runner that communicates in the shaping chamber on the lower mould, its characterized in that: the hot runner comprises a cross gate and an inner gate, one end of the inner gate is communicated with the molding cavity, the other end of the inner gate is communicated with the cross gate, a sprue is arranged at the end part of the cross gate, and the sprue is arranged on the side wall of the lower die.

2. The mold for casting production of a balance cylinder according to claim 1, wherein: and the lower end surface of the upper die is provided with a plurality of guide grooves.

3. The mold for casting production of a balance cylinder according to claim 2, wherein: the upper end face of the lower die is provided with a plurality of guide rods.

4. The mold for casting production of a balance cylinder according to claim 3, wherein: the guide rod is matched with the guide groove.