Vibration core shakeout unit
By designing a closed-loop core removal unit, robots and automated equipment are used to process aluminum alloy castings in a closed space, solving the problems of high labor intensity and noise. This achieves efficient and low-noise removal of aluminum alloy casting sand cores, improving production efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CUSTER ALUMINUM (CHONGQING) TECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
Existing methods for removing aluminum alloy castings from sand are characterized by high labor intensity, low production efficiency, high noise from mechanical equipment, and reliance on manual material transfer, which affects production efficiency.
A closed-loop core removal unit is designed, which adopts an island-type production line structure. It uses robots and core removal machines to automatically process castings in a closed space. Combined with hammers and vibrators, the core is removed. Waste sand is collected and transferred by belt conveyor, realizing a closed-loop production.
It improved the working environment, reduced noise pollution, increased production efficiency, reduced labor costs, and achieved an automated sand core removal process.
Smart Images

Figure CN224222718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum alloy casting processing technology, and in particular to a vibrating core sand dropping unit. Background Technology
[0002] Aluminum alloy subframes are generally produced using a low-pressure casting process with a sand core. After the aluminum alloy casting is formed, the sand mold inside the casting needs to be removed. Currently, there are two methods for removing sand from aluminum alloy castings: one is manual sand removal, which is done manually on-site in a typical foundry. This is mainly used for single-piece or small-batch production, but it has the disadvantages of high labor intensity and low production efficiency. The other is mechanical sand removal, which usually uses mechanical equipment. It involves placing the cast aluminum alloy part on a vibrating sand removal machine, where vibration causes the sand to fall.
[0003] Existing hammer core machines and vibratory core machines generate a lot of noise due to their mechanical processing methods. Material transfer between the two machines relies on traditional manual handling, and scattered sand cores require additional manpower for regular cleaning, which affects production efficiency. Utility Model Content
[0004] Based on the aforementioned technical issues that need to be addressed, a core sand removal unit is provided.
[0005] To achieve the above objectives, this utility model discloses a core-shaping unit, including a closed core-shaping chamber with sound insulation. The core-shaping chamber contains a first waste sand collection belt conveyor and a second waste sand collection belt conveyor, connected end-to-end and arranged vertically. A loading slide and a discharging slide are arranged side-by-side in front of the core-shaping chamber. A core-shaping robot is installed between the loading slide and the first waste sand collection belt conveyor. A first core-shaping machine and a hammer are located on the side of the second waste sand collection belt conveyor furthest from the core-shaping robot, and a second core-shaping machine is located on the side of the first waste sand collection belt conveyor furthest from the core-shaping robot. The hammer, the first core-shaping machine, the second core-shaping machine, the loading slide, and the discharging slide are all located within the maximum turning radius of the core-shaping robot.
[0006] Furthermore, at least half of the structure of the upper slide and the lower slide extends into the interior of the core sand removal chamber, while the other half is located outside the core sand removal chamber.
[0007] Furthermore, the vibrating core robot is equipped with a gripper structure corresponding to the subframe model.
[0008] Furthermore, the first vibrating core sand removal machine is installed at the edge of the second waste sand collection belt conveyor, and the second vibrating core sand removal machine is installed at the edge of the first waste sand collection belt conveyor.
[0009] Furthermore, the hammer is installed directly above the second waste sand collection conveyor belt.
[0010] Furthermore, the end of the second waste sand collection belt conveyor on the side away from the first waste sand collection belt conveyor passes through the vibrating core sand removal chamber and is located outside the vibrating core sand removal chamber.
[0011] Furthermore, the side of the core sand removal room is equipped with an isolation door coaxial with the first waste sand collection belt conveyor. A robot control cabinet is installed on the side of the isolation door to control the core robot independently. An electrical control cabinet is installed on the side of the robot control cabinet to control the automatic operation of the entire core sand removal unit.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a core removal unit with an island-shaped production line structure set up in a closed core removal room. The sub-frame is transferred by a robot, and the core sand inside the sub-frame cavity is removed by a hammer and two sets of core removal machines. The waste sand collection belt conveyor transfers the scattered core sand, realizing a closed-loop production of core removal, improving the working environment, and preparing for the subsequent cutting unit. Attached Figure Description
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0014] Figure 1 This is a top view of the overall layout of this utility model.
[0015] In the diagram: 1 is the core shaking and sand removal room; 11 is the robot control box; 12 is the control box; 2 is the first waste sand collection belt conveyor; 3 is the second waste sand collection belt conveyor; 4 is the core shaking robot; 5 is the loading slide; 6 is the unloading slide; 7 is the first core shaking and sand removal machine; 8 is the second core shaking and sand removal machine; 9 is the hammering machine. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] One embodiment of this utility model is as follows: Figure 1As shown, the soundproof, enclosed vibrating core sand removal chamber places the entire system within a closed space. Noise is reduced by sound-absorbing materials such as sound-absorbing cotton on the walls, improving the working environment. The vibrating core sand removal chamber 1 contains a first waste sand collection belt conveyor 2 and a second waste sand collection belt conveyor 3, arranged vertically and connected end-to-end. A loading slide 5 and a discharging slide 6 are arranged side-by-side in front of the chamber 1. A vibrating core robot 4 is installed between the loading slide 5 and the first waste sand collection belt conveyor 2. A first vibrating core sand removal machine 7 and a hammer are located on the side of the second waste sand collection belt conveyor 3 furthest from the vibrating core robot 4, near the loading slide 5. Machine 9, the first waste sand collection belt conveyor 2 is located on the side away from the vibrating core robot 4, and the second vibrating core sand removal machine 8 is set up. The hammering machine 9, the first vibrating core sand removal machine 7, the second vibrating core sand removal machine 8, the upper slide table 5 and the lower slide table 6 are all located within the maximum turning radius of the vibrating core robot 4. An island-shaped production line structure is set up in the closed vibrating core sand removal room. The robot transfers the sub-carriage, and the hammering machine and the two sets of vibrating core sand removal machines remove the sand core inside the sub-carriage cavity. The waste sand collection belt conveyor transfers the scattered sand core, realizing the production closed loop of vibrating core sand removal, improving the working environment, and preparing for the subsequent cutting unit.
[0018] At least half of the structure of the loading slide 5 and the unloading slide 6 extends into the interior of the core sanding chamber 1, while the other half is located outside the core sanding chamber 1, which facilitates loading and unloading. The loading slide automatically transfers the workpiece to the core sanding chamber, and the unloading slide automatically transfers the subframe that has completed the core sanding to the outside of the core sanding chamber.
[0019] The vibrating core robot 4 is equipped with a gripper structure corresponding to the sub-frame model. The gripper picks up the sub-frame to be processed on the upper slide and places it on the positioning fixture of the hammering machine. After the hammering machine finishes its work, the gripper picks up the workpiece from the hammering machine and places it on the fixture of the idle vibrating core sanding machine. After the vibrating core sanding machine finishes its work, the gripper picks up the sub-frame from the corresponding vibrating core sanding machine and places it on the output slide, thus completing the vibrating core sanding operation of a single sub-frame.
[0020] The first vibrating core sand removal machine 7 is installed at the edge of the second waste sand collection belt conveyor 3, the second vibrating core sand removal machine 8 is installed at the edge of the first waste sand collection belt conveyor 2, and the hammering machine 9 is installed directly above the second waste sand collection belt conveyor 3. The hammering machine uses a pneumatic hammer to strike the subframe with high-frequency vibration, causing cracks in the sand core blocks inside the workpiece cavity. The vibrating core sand removal machine uses a vibrating motor and a vibrating machine body to make the sand core blocks inside the subframe rub against each other, reducing the size of the sand core blocks and enabling them to detach from the workpiece through the sand removal hole, thereby achieving the function of removing the sand core. For specific structure, refer to the subframe hammering device disclosed in CN220970732U and the subframe vibrating core device disclosed in CN221336571U previously applied for by our company.
[0021] The end of the second waste sand collection belt conveyor 3, which is away from the first waste sand collection belt conveyor 2, passes through the vibrating core sand removal chamber 1 and is located outside the vibrating core sand removal chamber 1. The first waste sand collection belt conveyor collects the sand cores dropped by the second vibrating core sand removal machine and transfers them to the second waste sand collection belt conveyor. The second waste sand collection belt conveyor collects and transfers the sand cores dropped by the hammer, the first vibrating core sand removal machine and the second vibrating core sand removal machine to the outside of the vibrating core sand removal chamber. The sand cores are periodically processed through an external transfer box to reduce labor costs.
[0022] The side of the core sand removal room 1 is equipped with an isolation door coaxial with the first waste sand collection belt conveyor 2. The side of the isolation door is equipped with a robot control cabinet 11 to control the core robot 4. The side of the robot control cabinet 11 is equipped with a control cabinet 12 to control the automatic operation of the entire core sand removal unit.
[0023] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.
[0024] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.
Claims
1. A core-shaking unit, comprising a closed core-shaking chamber (1) with sound insulation, characterized in that, The core shaking sand chamber (1) is equipped with a first waste sand collection belt conveyor (2) and a second waste sand collection belt conveyor (3) that are connected end to end and arranged vertically. A loading slide (5) and a discharging slide (6) are arranged side by side in front of the core shaking sand chamber (1). A core shaking robot (4) is installed between the loading slide (5) and the first waste sand collection belt conveyor (2). A first core shaking sand machine (7) and a hammer (9) are arranged on the side of the second waste sand collection belt conveyor (3) away from the core shaking robot (4). A second core shaking sand machine (8) is arranged on the side of the first waste sand collection belt conveyor (2) away from the core shaking robot (4). The hammer (9), the first core shaking sand machine (7), the second core shaking sand machine (8), the loading slide (5), and the discharging slide (6) are all located within the maximum turning radius of the core shaking robot (4).
2. The core sand-falling unit according to claim 1, characterized in that, At least half of the structure of the upper slide (5) and the lower slide (6) extends into the interior of the core sand removal chamber (1), while the other half is located outside the core sand removal chamber (1).
3. The core sand-falling unit according to claim 1, characterized in that, The vibrating core robot (4) is equipped with a gripper structure corresponding to the subframe model.
4. The core sand-falling unit according to claim 1, characterized in that, The first vibrating core sand removal machine (7) is installed at the edge of the second waste sand collection belt conveyor (3), and the second vibrating core sand removal machine (8) is installed at the edge of the first waste sand collection belt conveyor (2).
5. The core sand-falling unit according to claim 1, characterized in that, The hammer (9) is installed directly above the second waste sand collection belt conveyor (3).
6. The core sand-falling unit according to claim 5, characterized in that, The end of the second waste sand collection belt conveyor (3) on the side away from the first waste sand collection belt conveyor (2) passes through the core sand dropping chamber (1) and is located outside the core sand dropping chamber (1).
7. The core-shaking unit according to claim 1, characterized in that, The vibrating core sand removal room (1) has an isolation door on the side that is coaxial with the first waste sand collection belt conveyor (2). The isolation door has a robot control cabinet (11) on the side that controls the vibrating core robot (4) separately. The robot control cabinet (11) has an electrical control cabinet (12) on the side that controls the entire vibrating core sand removal unit to run automatically.