Sand box sand adding device for lost foam casting

By setting horizontal and vertical scraper plates inside the main body of the sand feeder discharge cover, combined with electric push rods and drive mechanisms, the problem of insufficient material feeding in lost foam casting is solved, achieving a more efficient material feeding process and avoiding sand accumulation and blockage.

CN224508386UActive Publication Date: 2026-07-17YANGZHOU FUTIAN YOUBANG VEHICLE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU FUTIAN YOUBANG VEHICLE IND CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing sand box feeders for lost foam casting have insufficient auxiliary feeding during the material feeding process, which easily leads to sand accumulation and blockage.

Method used

A sand feeder discharge cover body was designed, which is equipped with horizontal and vertical scraper plates inside. Combined with an electric push rod and drive mechanism, the vertical scraping is achieved by moving the horizontal scraper plates. With the help of the unblocking rod and spring, the discharge hole is unblocked, and sand accumulation and blockage are avoided.

Benefits of technology

It achieves a more complete material feeding effect, avoids the accumulation and blockage of sand in the gaps between the feeding holes, and ensures the smoothness and efficiency of material feeding.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224508386U_ABST
    Figure CN224508386U_ABST
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Abstract

The utility model discloses a kind of sand box sanding device for lost foam casting, belong to lost foam casting technical field, it includes sanding device discharge cover main body, the inside wall of sanding device discharge cover main body is equipped with first with hole plate, the bottom of sanding device discharge cover main body side is equipped with first electric push rod, and the output end of first electric push rod is connected with first connecting plate, the side of first connecting plate close to sanding device discharge cover main body is equipped with second with hole plate.The utility model is evenly provided with longitudinal scraping plate on transverse scraping plate, and fixed mechanism for extruding half-round block is arranged on sanding device discharge cover main body, so that when movable closed frame moves horizontally through transverse scraping plate and is scraped horizontally, longitudinal scraping plate can be moved longitudinally simultaneously, and then further longitudinal scraping is carried out through longitudinal scraping plate, so that part of sand material can be avoided to be easily deposited in discharging hole interval, and then further ensure that discharging is sufficient.
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Claims

1. A sand box feeder for lost foam casting, comprising a main body (1) of the feeder discharge cover, characterized in that: The inner wall of the sand feeder discharge cover body (1) is equipped with a first perforated plate (2), and a first electric push rod (3) is installed at the bottom of one side of the sand feeder discharge cover body (1). The output end of the first electric push rod (3) is connected to a first connecting plate (4). A second perforated plate (5) is installed on the side of the first connecting plate (4) close to the sand feeder discharge cover body (1), and the second perforated plate (5) penetrates the sand feeder discharge cover body (1). The top of both ends of the main body (1) of the sand feeder discharge cover is provided with through holes (6), and the top of both sides of the main body (1) of the sand feeder discharge cover is provided with movable closing frames (7). The bottom of both ends of the movable closing frames (7) is provided with mounting grooves (8). Movable closing blocks (9) are provided inside the mounting grooves (8), and the movable closing blocks (9) extend into the inside of the through holes (6). A horizontal scraper (10) is evenly installed on one end of the movable closing block (9) near the main body (1) of the sand feeder discharge cover, and the horizontal scraper (10) penetrates the movable closing frame (7). Both sides of the transverse scraper (10) are evenly equipped with longitudinal scraper (11), and a semi-circular block (12) is installed at the end of the movable sealing block (9) away from the main body (1) of the sand feeder discharge cover. A fixing mechanism for squeezing the semi-circular block (12) is provided on the main body (1) of the sand feeder discharge cover. The main body (1) of the sand feeder discharge cover is equipped with a drive mechanism for moving the movable closed frame (7).

2. The sand box feeder for expendable pattern casting according to claim 1, wherein The fixing mechanism includes two sets of U-shaped frames (13), and the two sets of U-shaped frames (13) are installed at both ends of the sand feeder discharge cover body (1). The end of the U-shaped frame (13) near the sand feeder discharge cover body (1) is equipped with a squeezing rod (14).

3. The sand box feeder for expendable pattern casting according to claim 2, wherein The extrusion rod (14) and the U-shaped frame (13) are manufactured as a single unit, and the two sets of extrusion rods (14) are located on different sides of the semicircular block (12).

4. The sand box feeder for expendable pattern casting according to claim 1, wherein The driving mechanism includes a second electric push rod (15), which is installed on the side of the sand feeder discharge cover body (1) away from the first electric push rod (3). The output end of the second electric push rod (15) is connected to a second connecting plate (16), and the second connecting plate (16) is fixedly connected to the movable closed frame (7).

5. The sand box feeder for expendable pattern casting according to claim 1, wherein The bottom of the horizontal scraper (10) is evenly provided with receiving grooves (17), and a dredging rod (18) is provided inside the receiving groove (17). A spring (19) is connected between the dredging rod (18) and the horizontal scraper (10).

6. The sand box and feeder for expendable pattern casting according to claim 5, wherein The bottom end of the unblocking rod (18) is round, and the unblocking rod (18) is slidably connected to the horizontal scraper (10).