Energy-efficient drying device for foundry lost foam
By designing the transmission and connection mechanisms, the problem of inflexible airflow outlet adjustment in the lost foam drying device was solved, achieving high efficiency, energy saving, and uniform drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG JINGBANG NEW ENERGY CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-21
AI Technical Summary
Existing lost foam drying equipment cannot adjust the size of the airflow outlet according to the needs of different drying stages, resulting in increased energy consumption and uneven drying of the lost foam surface.
Employing a transmission and connection mechanism, the system achieves precise adjustment of the air outlet through the cooperation of a rotating rod, gears, toothed plates, insert rods, and springs. This includes a screw-driven horizontal plate lifting mechanism and the meshing transmission between the toothed plate and gears, enabling on-demand adjustment of the air output.
It enables precise adjustment of the air outlet size during the lost foam drying process, improving drying efficiency and energy efficiency, avoiding unnecessary energy consumption, and ensuring uniform drying of lost foam.
Smart Images
Figure CN224534642U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lost foam drying equipment, and in particular to a high-efficiency and energy-saving lost foam drying equipment for casting. Background Technology
[0002] Lost foam casting (also known as solid casting) is a new type of casting method in which a wax or foam model similar in size and shape to the casting is bonded together to form a model cluster, coated with refractory paint and dried, buried in dry quartz sand and vibrated to shape, and then poured under negative pressure to vaporize the model, with the liquid metal occupying the model position, and after solidification and cooling, the casting is formed. According to announcement number "CN222364348U", this lost foam casting drying device relates to the field of drying equipment technology. It includes a drying chamber, a drying host, and circulating fan blades. The drying chamber is equipped with a horizontal partition plate. This invention features three conveyor bodies arranged sequentially from top to bottom within the drying chamber. These three conveyor bodies can automatically transport the lost foam into the drying chamber and also send the dried lost foam out of the drying chamber. Compared to existing manual conveying methods, this invention is more labor-saving and easier to operate. Furthermore, by setting a vertical partition plate with air inlets on its surface, the hot air supplied by the drying host to the hot air chamber can enter the drying chamber from three directions through the air inlets on the vertical partition plate. This allows for drying of the lost foam from multiple directions, resulting in more uniform drying and a better drying effect.
[0003] However, in actual use, the drying of lost foam usually includes multiple stages such as preheating, constant speed drying and slow speed drying. The requirements for the flow rate and velocity of the drying airflow are significantly different in different stages. A lower airflow velocity is required to avoid the surface of the lost foam drying too quickly while the internal moisture cannot migrate in time, which would lead to surface cracking. If the air outlet opening is fixed to a large size, the airflow rate and velocity will be too high, increasing unnecessary energy consumption and potentially having an adverse effect on the initial drying quality of the lost foam. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a high-efficiency and energy-saving lost foam casting drying device, which aims to solve the problem in the prior art that "the size of the drying airflow outlet cannot be adjusted according to the needs of different stages".
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency and energy-saving casting lost foam drying device, including a drying box, a conveyor body fixedly connected inside the drying box, an air outlet plate fixedly connected to the inner wall of the drying box, a transmission mechanism provided inside the air outlet plate, and a connecting mechanism provided on the top of the air outlet plate. The transmission mechanism includes a rotating rod, the outer wall of which is rotatably connected to the inner wall of the air outlet plate. A cover plate is fixedly connected to the outer wall of the rotating rod, and a gear is fixedly connected to the outer wall of the rotating rod. A toothed plate is slidably connected to the top of the air outlet plate, and a connecting slide plate is slidably connected to the top of the air outlet plate. The outer wall of the toothed plate meshes with the outer wall of the gear.
[0006] As a further description of the above technical solution: a rectangular block is fixedly connected to the outer wall of the toothed plate, a limit block is fixedly connected to the outer wall of the rectangular block, and the outer wall of the rectangular block is slidably connected to the inner wall of the connecting slide plate.
[0007] As a further description of the above technical solution: the connecting mechanism includes a plug rod, the outer wall of which penetrates the top of the connecting slide plate and is inserted into the inner wall of the rectangular block.
[0008] As a further description of the above technical solution: a spring is fixedly connected to the outer wall of the insertion rod, and the extension end of the spring is fixedly connected to the top of the connecting slide plate.
[0009] As a further description of the above technical solution: a connecting block is fixedly connected to the top of the insertion rod, and a horizontal plate is fixedly connected to the outer wall of the connecting block.
[0010] As a further description of the above technical solution: the top of the connecting slide is rotatably connected to a screw A, the outer wall of the screw A is threadedly connected to a threaded slider, and the inner wall of the horizontal plate is fixedly connected to the outer wall of the threaded slider.
[0011] As a further description of the above technical solution: a drying host is fixedly connected to the top of the air outlet box plate.
[0012] As a further description of the above technical solution: the outer wall of the air outlet plate is rotatably threaded with a screw B, and the bottom of the connecting slide plate is threadedly connected to the outer wall of the screw B. This utility model has the following beneficial effects: 1. In this utility model, the size of the air outlet during the drying process of lost foam is precisely adjusted by the cooperation of the drying box, conveyor body, air outlet plate, transmission mechanism rotating rod, cover plate, gear, toothed plate and connecting mechanism insert rod, spring, screw A and drying host.
[0013] 2. In this utility model, the horizontal plate is driven to rise and fall by the screw A, and the insertion rod is controlled to limit the rectangular block. The overall linkage or individual control mode can be switched. The meshing transmission of the toothed plate and gear drives the rotating rod to rotate to adjust the cover plate angle, thereby adjusting the air volume distribution as needed to achieve a high-efficiency and energy-saving drying effect. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of a high-efficiency and energy-saving lost foam casting drying device proposed in this utility model. Figure 2 This is a partial structural diagram of the air outlet plate of a high-efficiency and energy-saving lost foam casting drying device proposed in this utility model. Figure 3 This is a schematic diagram of the meshing structure of the gear and toothed plate in a high-efficiency and energy-saving casting lost foam drying device proposed in this utility model. Figure 4 This utility model proposes a high-efficiency and energy-saving lost foam casting drying device. Figure 2 A schematic diagram of the enlarged structure A in the diagram; Figure 5 This is a partial structural diagram of the insert rod and spring of a high-efficiency and energy-saving lost foam casting drying device proposed in this utility model.
[0015] Legend: 1. Drying oven; 2. Conveyor body; 3. Air outlet plate; 4. Drying main unit; 5. Transmission mechanism; 511. Rotating rod; 512. Cover plate; 513. Gear; 514. Connecting slide plate; 515. Toothed plate; 516. Rectangular block; 517. Limiting block; 6. Connecting mechanism; 611. Insert rod; 612. Spring; 613. Connecting block; 614. Horizontal plate; 615. Screw A; 616. Threaded slider; 7. Screw B. 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] Reference Figures 1-3This utility model provides an embodiment of a high-efficiency and energy-saving lost foam casting drying device, comprising a drying chamber 1. The inner wall of the drying chamber 1 is made of heat-insulating material to reduce heat loss. A conveyor body 2 is fixedly connected inside the drying chamber 1. The conveyor body 2 adopts a mesh conveyor belt structure to ensure the circulation of hot air. An exhaust plate 3 is fixedly connected to the inner wall of the drying chamber 1. The exhaust plate 3 has multiple exhaust ports arranged in a matrix to evenly distribute hot air. A transmission mechanism 5 is provided inside the exhaust plate 3. The transmission mechanism 5 uses... To control the opening and closing angle of the air outlet, a connecting mechanism 6 is provided on the top of the air outlet box plate 3. The connecting mechanism 6 is used to control the transmission mechanism 5 in conjunction with or independently. The transmission mechanism 5 includes a rotating rod 511, the outer wall of which is rotatably connected to the inner wall of the air outlet box plate 3. The rotating rod 511 can rotate around its axis to adjust the angle of the cover plate 512. The cover plate 512 is fixedly connected to the outer wall of the rotating rod 511. The cover plate 512 has a fan-shaped structure that matches the shape of the air outlet. A gear 513 is fixedly connected to the outer wall of the rotating rod 511. 3. The rotating rod 511 rotates synchronously to transmit power. A toothed plate 515 is slidably connected to the top of the exhaust plate 3. When the toothed plate 515 moves linearly, it drives the gear 513 to rotate. A connecting slide plate 514 is slidably connected to the top of the exhaust plate 3. The connecting slide plate 514 provides a sliding track for the toothed plate 515. The outer wall of the toothed plate 515 meshes with the outer wall of the gear 513. The meshing transmission ensures the stability of power transmission. A rectangular block 516 is fixedly connected to the outer wall of the toothed plate 515. The rectangular block 516 is used to connect the toothed plate. 515 and a limiting mechanism, the outer wall of the rectangular block 516 is fixedly connected to a limiting block 517, the limiting block 517 prevents the rectangular block 516 from detaching from the connecting slide plate 514, the outer wall of the rectangular block 516 is slidably connected to the inner wall of the connecting slide plate 514, the rectangular block 516 can slide freely along the inner wall of the connecting slide plate 514, the connecting mechanism 6 includes a plug rod 611, the outer wall of the plug rod 611 penetrates through the top of the connecting slide plate 514 and is inserted into the inner wall of the rectangular block 516, the plug rod 611 restricts the sliding of the rectangular block 516 when it is inserted into the rectangular block 516.
[0018] Reference Figures 4-5A spring 612 is fixedly connected to the outer wall of the insertion rod 611. Multiple sets of insertion rods 611 are used to fix the rectangular block 516 to different positions when the toothed plate 515 is moved and adjusted individually. The extended end of the spring 612 is fixedly connected to the top of the connecting slide plate 514. The spring 612 provides elastic force to keep the insertion rod 611 in the inserted state. A connecting block 613 is fixedly connected to the top of the insertion rod 611. The connecting block 613 is used to link multiple insertion rods 611 to move synchronously. A horizontal plate 614 is fixedly connected to the outer wall of the connecting block 613. The horizontal plate 614 ensures that the connecting block 613 rises and falls synchronously. A screw A6 is rotatably connected to the top of the connecting slide plate 514. 15. When the screw A615 rotates, it drives the threaded slider 616 to move up and down. The threaded slider 616 is threadedly connected to the outer wall of the screw A615. The threaded slider 616 converts the rotational motion of the screw A615 into linear motion. The inner wall of the horizontal plate 614 is fixedly connected to the outer wall of the threaded slider 616. The horizontal plate 614 rises and falls synchronously with the threaded slider 616 to control the insertion rod 611. The top of the air outlet plate 3 is fixedly connected to the drying host 4. The drying host 4 provides hot air and delivers it to the inside of the drying chamber 1 through the air outlet plate 3. The outer wall of the air outlet plate 3 is rotatably threadedly connected to the screw B7. The bottom of the connecting slide plate 514 is threadedly connected to the outer wall of the screw B7.
[0019] Working principle: An air vent plate 3 is installed inside the drying chamber 1. During use, the lost foam is placed on the conveyor body 2 by opening the door of the drying chamber 1, and then sent into the drying chamber 1. The opening and closing size of the air vents on the air vent plate 3 can be adjusted as needed. When it is necessary to simultaneously adjust the opening and closing angles of all cover plates 512, the screw A615 is rotated, causing the horizontal plate 614 to move downwards. When the horizontal plate 614 moves downwards, it causes the connecting block 613 to press down. When the connecting block 613 moves downward, it drives the bottom insert rod 611 to pass through the rectangular block 516 and fix the rectangular block 516 to the inner wall of the connecting slide plate 514, thereby limiting all the toothed plates 515. Then, the connecting slider at the top is manually pushed. When the connecting slider is pushed, it drives all the fixed toothed plates 515 to move. The toothed plates 515 drive the gear 513 to rotate. When the gear 513 rotates, it drives all the rotating rods 511 to control the opening and closing of the cover plate 512 at the same time. When individual control of a single column is required, the screw A615 is rotated to raise the horizontal plate 614, causing the insert rod 611 to separate from the rectangular block 516. This allows the rectangular block 516 to slide along the inner wall of the connecting slide plate 514. By rotating the rotating rod 511 of each column individually, the opening and closing angle of each column cover plate 512 can be adjusted, thus facilitating individual control of the size of the air outlet of the air box plate 3, which can be adjusted according to the requirements of lost foam casting.
[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency and energy-saving casting lost foam drying device, comprising a drying chamber (1), characterized in that: The drying box (1) is fixedly connected to a conveyor (2), and the inner wall of the drying box (1) is fixedly connected to an air outlet plate (3). The air outlet plate (3) is provided with a transmission mechanism (5), and the top of the air outlet plate (3) is provided with a connecting mechanism (6). The transmission mechanism (5) includes a rotating rod (511), the outer wall of which is rotatably connected to the inner wall of the air outlet plate (3), a cover plate (512) is fixedly connected to the outer wall of the rotating rod (511), a gear (513) is fixedly connected to the outer wall of the rotating rod (511), a toothed plate (515) is slidably connected to the top of the air outlet plate (3), a connecting slide plate (514) is slidably connected to the top of the air outlet plate (3), and the outer wall of the toothed plate (515) meshes with the outer wall of the gear (513).
2. The high-efficiency and energy-saving casting lost foam drying device according to claim 1, characterized in that: A rectangular block (516) is fixedly connected to the outer wall of the toothed plate (515), and a limit block (517) is fixedly connected to the outer wall of the rectangular block (516). The outer wall of the rectangular block (516) is slidably connected to the inner wall of the connecting slide plate (514).
3. The high-efficiency and energy-saving casting lost foam drying device according to claim 1, characterized in that: The connecting mechanism (6) includes a plug (611), the outer wall of which penetrates the top of the connecting slide plate (514) and is inserted into the inner wall of the rectangular block (516).
4. The high-efficiency and energy-saving casting lost foam drying device according to claim 3, characterized in that: A spring (612) is fixedly connected to the outer wall of the insert (611), and the extended end of the spring (612) is fixedly connected to the top of the connecting slide plate (514).
5. The high-efficiency and energy-saving casting lost foam drying device according to claim 3, characterized in that: The top of the insertion rod (611) is fixedly connected to a connecting block (613), and the outer wall of the connecting block (613) is fixedly connected to a horizontal plate (614).
6. The high-efficiency and energy-saving casting lost foam drying device according to claim 5, characterized in that: The top of the connecting slide plate (514) is rotatably connected to a screw A (615), and the outer wall of the screw A (615) is threadedly connected to a threaded slider (616). The inner wall of the horizontal plate (614) is fixedly connected to the outer wall of the threaded slider (616).
7. The high-efficiency and energy-saving casting lost foam drying device according to claim 1, characterized in that: The top of the air outlet plate (3) is fixedly connected to the drying host (4).
8. The high-efficiency and energy-saving casting lost foam drying device according to claim 1, characterized in that: The outer wall of the air outlet plate (3) is rotatably threaded with a screw B (7), and the bottom of the connecting slide plate (514) is threaded to the outer wall of the screw B (7).