CN-224209093-U - Sand shooting mechanism for molding machine

CN224209093UCN 224209093 UCN224209093 UCN 224209093UCN-224209093-U

Abstract

The utility model discloses a sand shooting mechanism for a molding machine, which comprises a middle box body, a sand shooting assembly and a sealing assembly, wherein the sealing assembly is fixedly arranged at the top of the middle box body through bolts, the bottom of the middle box body is fixedly connected with the sand shooting assembly through bolts, more than two boiling plates used for guiding high-pressure gas are arranged on the inner side wall of the middle box body, more than two supporting frames are welded on the outer side wall of the middle box body, a cabin door is arranged on one side of the middle box body, one side of the cabin door is movably connected with the middle box body through a hinge, and the cabin door is fixedly connected with the outer side wall of the middle box body through bolts. The sand shooting mechanism for the molding machine, the sealing assembly, the sand shooting assembly and the supporting frame provided by the utility model have the advantages that the technical problem of difficult maintenance of traditional equipment is effectively solved by combining the optimal layout of the supporting frame and the boiling plate through the movably opened cabin door design, the modularized sealing assembly and the installation structure of the sand shooting assembly, and the advantages of convenience in maintenance and overhaul and improvement of equipment stability and production efficiency are realized.

Inventors

WANG GANG
WU DAOCHENG

Assignees

广东铸星智能科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250429

Claims (8)

1. The sand shooting mechanism for the molding machine comprises a middle box body, a sand shooting assembly and a sealing assembly, and is characterized in that the sealing assembly is fixedly arranged at the top of the middle box body through bolts, and the bottom of the middle box body is fixedly connected with the sand shooting assembly through bolts; The novel high-pressure gas boiler is characterized in that more than two boiling plates used for guiding high-pressure gas are arranged on the inner side wall of the middle box body, more than two supporting frames are welded on the outer side wall of the middle box body, a cabin door is arranged on one side of the middle box body, one side of the cabin door is movably connected with the middle box body through a hinge, and the cabin door is fixedly connected with the outer side wall of the middle box body through a bolt.
2. The sand shooting mechanism for a molding machine of claim 1, wherein the sealing assembly is formed by combining an upper cover, a sand inlet nozzle, a telescopic cylinder and a sealing plate, the sand inlet nozzle is of a rectangular opening structure, the sand inlet nozzle is fixedly arranged at the top of the upper cover through a bolt, the telescopic cylinder is fixedly arranged on the outer wall of one side of the upper cover, the sealing plate is arranged below the sand inlet nozzle, the telescopic cylinder can drive the sealing plate to horizontally stretch and retract to open or close the sand inlet nozzle, and a sealing rubber ring is arranged at the bottom of the sand inlet nozzle.
3. The sand shooting mechanism for a molding machine of claim 2, wherein the upper cover is further provided with an air inlet pipe and a pressure sensor, and two sides of the upper cover are further provided with more than two check valves for exhausting.
4. The sand shooting mechanism for a molding machine of claim 1, wherein the sand shooting assembly is formed by combining a connecting cavity, a first sand shooting cavity and a second sand shooting cavity, boiling strips are arranged around the connecting cavity, the first sand shooting cavity and the second sand shooting cavity are arranged below the connecting cavity in parallel, cross sections of the first sand shooting cavity and the second sand shooting cavity are of inverted trapezoid structures, and sand shooting nozzles communicated with sand boxes are arranged at the lower parts of the first sand shooting cavity and the second sand shooting cavity.
5. The sand shooting mechanism for a molding machine of claim 4, wherein a plurality of frames are arranged on the boiling plate and the boiling strip, and a porous air-permeable net is arranged on the frames.
6. The sand shooting mechanism for a molding machine of claim 1, wherein the support frame is composed of a horizontal plate and wing plates, and two wing plates are arranged on the horizontal plate.
7. The sand shooting mechanism for a molding machine of claim 6, wherein the horizontal plate is of a rectangular structure, the wing plates are of a trapezoid structure, fixing holes are formed in the horizontal plate, and through holes are formed in the wing plates.
8. The sand shooting mechanism for a molding machine of any one of claims 1-7, wherein boiling plates are respectively arranged on the front side, the rear side and the left side of the middle box body, supporting frames are welded on the front side, the rear side and the left side of the outer wall of the middle box body, an air passage is arranged between the outer side of the upper part of the middle box body and the supporting frames, and the air passage is communicated with the boiling plates.

Description

Sand shooting mechanism for molding machine Technical Field The utility model relates to the field of molding machines, in particular to a sand shooting mechanism for a molding machine. Background The existing sand shooting mechanism is a core functional module of a molding machine in the casting industry, and has the function of shooting molding sand into a sand box cavity at high speed through high-pressure airflow to form a compact and uniform sand mold. The traditional sand shooting mechanism is generally composed of a sand shooting barrel, a pneumatic system, a sand distributing device and a sealing structure, and the performance of the sand shooting mechanism directly influences the casting quality, the production efficiency and the equipment stability. However, the existing sand shooting mechanism generally has the pain point of inconvenient maintenance in structural design, particularly the side closed type design causes difficult equipment overhaul, cleaning and component replacement, and becomes a key problem for restricting the technical upgrading of the industry. Conventional sand shooting mechanisms typically employ an integral housing or welded frame, or modular panel, to ensure tightness and structural strength. The maintenance needs to be carried out from the top or the bottom, the operation space is limited, and particularly, a large number of peripheral components are required to be disassembled for overhauling the internal sand shooting nozzle, the guide plate and the air passage valve, which takes up to a few hours. In the sand shooting process, molding sand is easy to accumulate at the inner wall of the sand shooting cylinder and the gas path interface, and the closed structure is difficult to directly clean dead angles, so that uneven sand shooting pressure, reduced sand mould compactness and even equipment faults are caused due to long-term accumulation. In view of the above, there is an urgent need in the market for an easy-to-maintain sand shooting mechanism. Disclosure of utility model In view of the above problems, the present application aims to provide a sand shooting mechanism for molding machines, a sealing assembly, a sand shooting assembly and a supporting frame thereof, which have the advantages of convenient maintenance and repair and improved equipment stability and production efficiency. The application provides a sand shooting mechanism for a molding machine, which comprises a middle box body, a sand shooting assembly and a sealing assembly, wherein the sealing assembly is fixedly arranged at the top of the middle box body through bolts, the bottom of the middle box body is fixedly connected with the sand shooting assembly through bolts, more than two boiling plates for guiding high-pressure gas are arranged on the inner side wall of the middle box body, more than two supporting frames are welded on the outer side wall of the middle box body, a cabin door is arranged on one side of the middle box body, one side of the cabin door is movably connected with the middle box body through a hinge, and the cabin door is fixedly connected with the outer side wall of the middle box body through bolts. The application further provides a sealing assembly which is formed by combining an upper cover, a sand inlet nozzle, a telescopic cylinder and a sealing plate, wherein the sand inlet nozzle is of a rectangular opening structure, the sand inlet nozzle is fixedly arranged at the top of the upper cover through bolts, the telescopic cylinder is fixedly arranged on the outer wall of one side of the upper cover, the sealing plate is arranged below the sand inlet nozzle, the telescopic cylinder can drive the sealing plate to horizontally stretch and open or close the sand inlet nozzle, and a sealing rubber ring is arranged at the bottom of the sand inlet nozzle. Furthermore, the application also provides that the upper cover is also provided with an air inlet pipe and a pressure sensor, and two sides of the upper cover are also provided with more than two one-way valves for exhausting. Furthermore, the application also provides a sand shooting assembly which is formed by combining a connecting cavity, a first sand shooting cavity and a second sand shooting cavity, boiling strips are arranged around the connecting cavity, the first sand shooting cavity and the second sand shooting cavity are arranged below the connecting cavity in parallel, the cross sections of the first sand shooting cavity and the second sand shooting cavity are of inverted trapezoid structures, and sand shooting nozzles communicated with sand boxes are arranged at the lower parts of the first sand shooting cavity and the second sand shooting cavity. Furthermore, the application also provides that a plurality of frames are arranged on the boiling plate and the boiling strip, and the frame is provided with a porous air-permeable net. Furthermore, the application also provides that the support frame is formed by combining