A cast sand stripping device for grinding ball production

By designing a striking device that includes a sand removal box and a lifting cylinder for control, the problem of the physical labor required for traditional manual sand removal is solved. This enables the sand to be removed quickly and safely, protecting the mold from damage and improving the production efficiency of grinding balls.

CN224309594UActive Publication Date: 2026-06-02JIANGXI COPPER COPORATION DONGXIANG CAST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI COPPER COPORATION DONGXIANG CAST
Filing Date
2025-05-30
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional manual hammering method of casting sand is physically demanding and highly unpredictable, making it difficult to efficiently remove casting sand during the production of grinding balls.

Method used

Design a device that includes a sand removal box, a base, a spring, an adjustable impactor, and a vibration motor. The impactor is raised and lowered by a lifting cylinder, and the vibration motor and impact blocks are used to quickly remove casting sand and avoid damage to the mold.

Benefits of technology

It enables rapid and safe removal of casting sand, reduces manual labor intensity, protects molds from damage, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224309594U_ABST
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Abstract

The utility model discloses a cast sand separating device for grinding ball production, including sand -blasting box, pedestal, spring, adjusting beater and vibration motor, sand -blasting box is connected with the pedestal through a plurality of springs, a plurality of vibration motor is installed on sand -blasting box, adjusting beater is installed on the pedestal and is set in sand -blasting box in working end, adjusting beater is including lift cylinder, lifting frame and beater, lift cylinder is installed on the pedestal and piston rod is connected with lifting frame, a plurality of beater is installed on lifting frame, beater includes connecting rod, beater spring, connecting plate and beater block, and beater spring both ends are connected with connecting rod and connecting plate respectively, the utility model discloses a cast sand separating device for grinding ball production, and its simple structure is convenient and practical, and the lift of beater is controlled through lift cylinder, and the mould of vibration and beater block contact collision, reaches the purpose of falling cast sand quickly.
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Description

Technical Field

[0001] This utility model belongs to the field of casting sand removal technology, specifically relating to a casting sand removal device for grinding ball production. Background Technology

[0002] Wear-resistant balls are a type of grinding media used in ball mills to crush materials. Ductile iron grinding balls, obtained through heat treatment, primarily have a bainitic matrix structure and are referred to as bainitic ductile iron grinding balls. After casting, the mold needs to remove the casting sand to facilitate subsequent sand introduction and shaping. Traditionally, casting sand is removed manually by striking it with a copper rod, but this method is physically demanding and does not penetrate the sand to ensure proper removal. Therefore, we have proposed a casting sand removal device for grinding ball production to solve these problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a casting sand removal device for grinding ball production. It has a simple structure and is convenient and practical. The lifting cylinder controls the lifting of the striking device, so that the vibrating mold comes into contact with the striking block, thereby achieving the purpose of quickly knocking off the casting sand.

[0004] A sand removal device for grinding ball production includes a sand removal box, a base, springs, an adjusting impactor, and a vibration motor. The sand removal box is connected to the base via several springs, and several vibration motors are mounted on the sand removal box. The adjusting impactor is mounted on the base with its working end located inside the sand removal box. The adjusting impactor includes a lifting cylinder, a lifting frame, and an impact device. The lifting cylinder is mounted on the base with its piston rod connected to the lifting frame, and several impact devices are mounted on the lifting frame. The impact device includes a connecting rod, an impact spring, a connecting plate, and an impact block. The two ends of the impact spring are respectively connected to the connecting rod and the connecting plate, and at least one impact block is connected to the connecting plate.

[0005] Preferably, the desanding box includes a box body and strip-shaped material platforms, with several strip-shaped material platforms connected inside the box body, and the box body between adjacent strip-shaped material platforms having outlet holes for the impact device to pass through.

[0006] Preferably, one end of the strip material platform is provided with an outgoing inclined surface.

[0007] Preferably, a bent feed ramp is provided on the box body away from the outlet ramp.

[0008] Preferably, the striking block is spherical.

[0009] Preferably, it includes a suspended chain conveyor, which is positioned above the sand removal box. Beneficial effects

[0010] (1) The present invention provides a casting sand removal device for grinding ball production. It has a simple structure and is convenient and practical. The lifting cylinder controls the lifting of the striking device, so that the vibrating mold and the striking block come into contact and collide, thereby achieving the purpose of quickly knocking off the casting sand.

[0011] (2) The present invention provides a casting sand removal device for grinding ball production. By changing the angle of the striking block on the connecting plate and reducing the impact force through the spring, the striking block is prevented from directly contacting the mold and causing impact damage to the mold. This achieves the goal of striking out casting sand while avoiding damage to the mold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the sand removal device.

[0013] Figure 2 A schematic diagram of the structure for adjusting the striking device;

[0014] Figure 3 This is a schematic diagram of the sand removal box.

[0015] 1-Sand removal box, 2-Base, 3-Spring, 4-Adjustable impactor, 41-Lifting cylinder, 42-Lifting frame, 43-Impact device, 44-Connecting rod, 45-Impact spring, 46-Connecting plate, 47-Impact block, 5-Vibration motor, 6-Box body, 7-Bent feed ramp, 8-Strip material platform, 9-Outlet ramp, 10-Outlet sand. Detailed Implementation

[0016] The embodiments of this utility model are further described below with reference to the accompanying drawings. Example

[0017] like Figures 1 to 3As shown; a casting sand removal device for grinding ball production includes a sand removal box 1, a base 2, springs 3, an adjusting impactor 4, and a vibration motor 5. The sand removal box 1 is connected to the base 2 via several springs 3. Several vibration motors 5 are mounted on the sand removal box 1. The adjusting impactor 4 is mounted on the base 2 with its working end located inside the sand removal box 1. The adjusting impactor 4 includes a lifting cylinder 41, a lifting frame 42, and impact devices 43. The lifting cylinder 41 is mounted on the base 2 with its piston rod connected to the lifting frame 42. Several impact devices 43 are mounted on the lifting frame 42. The impact devices 43 include a connecting rod 44 and an impact spring 45. The system includes a connecting plate 46 and an impact block 47. The impact spring 45 is connected at both ends to the connecting rod 44 and the connecting plate 46, and at least one impact block 47 is connected to the connecting plate 46. The desanding box 1 includes a box body 6 and strip-shaped material platforms 8. Several strip-shaped material platforms 8 are connected inside the box body 6. The box body 6 between adjacent strip-shaped material platforms 8 has outlet sand 10 for the impact device 43 to pass through. One end of each strip-shaped material platform 8 is provided with a guide slope 9. The box body 6 away from the guide slope 9 is provided with a bent feed slope 7. The impact block 47 is spherical. The system also includes a suspended chain conveyor, which is located above the desanding box 1.

[0018] The mold is moved into the sand removal box 1 by a suspended chain conveyor. The vibration motor 5 is turned on to make the sand removal box 1 vibrate. It is necessary to control the vibration amplitude to avoid excessive vibration that could cause the mold to jump too violently and be damaged. The lifting cylinder 41 drives the lifting frame 42 to rise and fall. The lifting frame 42 drives the connecting rod 44, the striking spring 45, the connecting plate 46 and the striking block 47 to rise and fall in sequence. The striking block 47 is controlled to contact the mold. At the same time, the state of the striking spring 45 under compression is controlled when the striking block 47 contacts the mold to avoid excessive compression of the striking spring 45, which would cause excessive reaction force provided by the striking spring 45 when the striking block 47 contacts the mold and damage the mold. After the casting sand is shaken off or knocked down, it falls into the strip material platform 8 between adjacent strip material platforms 8. After falling into the base 2 through the strip material platform 8, the mold moves the casting sand guide edge on several strip material platforms 8 until it slides out through the guide slope 9.

[0019] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A casting sand removal device for grinding ball production, characterized in that: The device includes a sand removal box (1), a base (2), springs (3), an adjusting beater (4), and a vibration motor (5). The sand removal box (1) is connected to the base (2) by several springs (3). Several vibration motors (5) are installed on the sand removal box (1). The adjusting beater (4) is installed on the base (2) and its working end is located inside the sand removal box (1). The adjusting beater (4) includes a lifting cylinder (41), a lifting frame (42), and a striking device (43). The lifting cylinder (41) is mounted on the base (2) and the piston rod is connected to the lifting frame (42). Several striking devices (43) are mounted on the lifting frame (42). The striking device (43) includes a connecting rod (44), a striking spring (45), a connecting plate (46) and a striking block (47). The two ends of the striking spring (45) are respectively connected to the connecting rod (44) and the connecting plate (46). At least one striking block (47) is connected to the connecting plate (46).

2. The casting sand removal device for grinding ball production as described in claim 1, characterized in that: The desanding box (1) includes a box body (6) and strip material platforms (8). Several strip material platforms (8) are connected inside the box body (6). The box body (6) between adjacent strip material platforms (8) has outlet sand (10) for the impact device (43) to pass through.

3. The casting sand removal device for grinding ball production as described in claim 2, characterized in that: One end of the strip material platform (8) is provided with an outgoing inclined surface (9).

4. The casting sand removal device for grinding ball production as described in claim 3, characterized in that: A bent feed ramp (7) is provided on the box (6) that is far away from the output ramp (9).

5. The casting sand removal device for grinding ball production as described in claim 4, characterized in that: The striking block (47) is spherical.

6. The casting sand removal device for grinding ball production as described in claim 5, characterized in that: It includes a suspended chain conveyor, which is positioned above the sand removal box (1).