Warming and humidifying device for casting nodular cast iron well lid
By designing a heating and humidifying device for ductile iron manhole covers, the problem of improper temperature and humidity control during the casting process is solved, the stability of the environment around the mold and the improvement of casting quality are achieved, and it has the function of water resource recycling.
Patent Information
- Application Number
- CN202422753645.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-12
AI Technical Summary
During the casting process, improper control of temperature and humidity around the sand mold can easily lead to roughness or cracks on the mold surface, affecting the quality and size of the casting. Existing technologies make it difficult to effectively control environmental conditions to ensure the smooth progress of the casting process and the service life of the mold.
A heating and humidification device was designed, including a casting component and a temperature control component. The temperature and humidity of the mold were controlled by a water spray head and an air blower. After the water spray head sprays water, the wind wall prevents water dripping, and the recovery cavity collects water resources to ensure the stability of the environment around the mold.
Automatic control of the temperature and humidity around the mold is achieved, which improves the qualification rate of castings and avoids defects. Water resources are recycled and reused, which improves production stability and mold service life.
Smart Images

Figure CN223368189U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting manhole cover production, in particular to a heating and humidifying device used for casting ductile iron manhole covers. Background Art
[0002] During the casting process, it is crucial to control the temperature and humidity surrounding the sand mold. This helps prevent premature or uneven drying of the mold surface. If the environment is too dry, the sand may lose moisture prematurely, causing the mold surface to become rough or cracked, impacting the surface quality and overall quality of the final casting. Excessive temperature fluctuations or improper humidity control can cause thermal stress on the mold surface and within the mold. This thermal stress can cause cracking or deformation of the mold or casting, affecting the precise dimensions and quality of the casting. Controlling the temperature and humidity surrounding the sand mold ensures a smooth casting process, avoids quality issues with the casting and mold, and protects and extends the life of the mold. This control can be achieved through appropriate environmental measures and equipment, thereby improving the stability and quality of casting production. Utility Model Content
[0003] In view of the above technical problems, the utility model discloses a heating and humidifying device for casting ductile iron manhole covers.
[0004] The technical solution used by the utility model to solve the above technical problems is: a heating and humidifying device for casting ductile iron manhole covers, including a casting assembly, the casting assembly including a base, a mounting plate 1 and a mounting plate 2 are respectively provided on both sides of the base, multiple groups of transport rollers are rotatably provided on the base, a mold is placed on the transport roller, a casting bucket is provided on the mounting plate 1, the casting bucket casts the mold, a sliding frame 2 is slidably provided on the mounting plate 2, a lifting plate is slidably provided on the sliding frame 2, a processing frame is provided on the lifting plate, a heating head and multiple groups of water spray heads are provided in the processing frame, the water spray heads achieve cooling by sprinkling water around the mold and control the humidity around the mold at the same time.
[0005] Furthermore, a sliding frame 1 is slidably provided on the mounting plate 1, a rotating disk is rotatably provided on the sliding frame 1, an adjusting frame is slidably provided on the rotating disk, and the casting bucket is rotatably installed on the adjusting frame.
[0006] Furthermore, a recovery chamber is provided in the base, the recovery chamber is arc-shaped, and a plurality of water leakage holes are provided at the lowest end of the recovery chamber, and the water leakage holes discharge the water sprayed by the sprinkler head.
[0007] Furthermore, a plurality of groups of air blowing heads are rotatably provided on the processing rack, and the air blown out by the air blowing heads forms an air wall to isolate the water sprayed out by the water spray heads.
[0008] Furthermore, the water spray heads are arranged in a rectangular manner on the processing rack, and the length and width of the rectangle of the water spray heads are both greater than the length and width of the mold.
[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention automatically controls the temperature and humidity around the mold, ensures the qualified rate of the cast manhole cover, avoids defects in the cast manhole cover, and at the same time recycles the used water to improve the water recovery rate. The air blower provided in the present invention forms a wind wall, which prevents water from falling on the mold and affecting the casting of the manhole cover while controlling the humidity and cooling. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0011] Figure 2 It is a left view of the overall structure of the utility model.
[0012] Figure 3 for Figure 2 Schematic diagram of the structure in the AA direction.
[0013] Figure 4 This is a top view of the casting assembly structure of the utility model.
[0014] Figure 5 for Figure 4 Structural cross-section view in the middle BB direction.
[0015] Figure 6 This is a schematic diagram of the casting component structure of the utility model.
[0016] Figure 7 This is a top view of the temperature control component structure of the utility model.
[0017] Figure markings: 1-casting assembly; 2-temperature control assembly; 101-base; 102-mounting plate 1; 103-transport roller; 104-mold; 106-leakage hole; 107-casting hole; 108-mounting plate 2; 109-sliding frame 1; 110-rotating disk; 111-adjusting frame; 112-casting bucket; 113-recovery chamber; 201-sliding frame 2; 202-lifting plate; 203-processing frame; 204-water spray head; 205-heating head; 206-blowing head. DETAILED DESCRIPTION
[0018] refer to Figures 1 to 7The shown device is a heating and humidifying device for casting ductile iron manhole covers, comprising a casting assembly 1 for casting a mold 104. The casting barrel 112 provided on the casting assembly 1 can rotate at multiple angles to ensure the casting efficiency of the mold 104 and improve the production efficiency of the manhole covers. The casting assembly 1 is provided with a temperature control assembly 2 sliding on the side to control the surrounding environment of the mold 104. The temperature control assembly 2 controls the temperature of the mold 104 and the surrounding humidity.
[0019] The pouring assembly 1 includes a base 101, and a group of mounting plates 102 and 108 are respectively provided on both sides of the base 101. A sliding frame 109 is slidably provided on the mounting plate 102, and a rotating disk 110 is rotatably provided inside the sliding frame 109. An adjusting frame 111 is slidably provided on the rotating disk 110, and a casting bucket 112 is rotatably provided on the adjusting frame 111. The casting bucket 112 is used to place the molten casting molten iron. Multiple groups of transport rollers 103 are rotatably provided on the base 101, and a mold 104 is placed on the transport roller 103. The mold 104 is provided with a pouring hole 107. When the transport roller 103 is driven to rotate, the transport roller 103 drives the multiple groups of molds 104 to move on the base 101. A recovery chamber 113 is also provided in the base 101. The recovery chamber 113 is used for drainage. The recovery chamber 113 is set in an arc shape. The lowest end is provided with multiple groups of leakage holes 106, and water is discharged through the leakage holes 106. A temperature control component 2 is slidingly provided on the mounting plate 2 108. When casting the mold 104, the casting molten iron is placed in the casting bucket 112, and the sliding frame 109 is driven to move. The sliding frame 109 drives the casting bucket 112 to reach the side of a group of molds 104 that need to be cast, and the rotating disk 110 is driven to rotate. The rotating disk 110 drives the casting bucket 112 to rotate along the axis of the rotating disk 110, and the position of the casting bucket 112 is adjusted. The adjusting frame 111 is driven to slide on the rotating disk 110, and the adjusting frame 111 drives the casting bucket 112 to gradually approach the mold 104, and the casting bucket 112 is driven to rotate on the adjusting frame 111. After the casting bucket 112 is tilted, the casting molten iron in the casting bucket 112 is poured into the mold 104 through the pouring hole 107 to complete the casting of the manhole cover.
[0020] The temperature control assembly 2 includes a sliding frame 201 slidably mounted on the mounting plate 108, a lifting plate 202 is slidably mounted on the sliding frame 201, a processing frame 203 is mounted on the lifting plate 202, and the processing frame 203 is provided with multiple groups of water spray heads 204. The water spray heads 204 are arranged in a rectangular manner inside the processing frame 203, and the length and width of the rectangle in which the water spray heads 204 are arranged are both greater than the length and width of the mold 104, ensuring that the water spray heads 204 spray water outside the mold 104 to avoid In order to prevent the water spray from contacting the mold 104 and causing gradual defects, a heating head 205 is also provided inside the processing frame 203. The heating head 205 heats the mold 104 to ensure that the temperature of the mold 104 gradually decreases, reducing the probability of casting defects. The lower end of the processing frame 203 is rotatably provided with multiple groups of blowing heads 206. The blowing heads 206 form a wind wall by blowing wind. When the water spray head 204 sprays water, the wind wall of the blowing head 206 prevents water droplets from the water spray head 204 from dripping onto the mold 104.
[0021] Working principle: When working, the mold 104 to be cast is placed on the transport roller 103, the transport roller 103 is driven to rotate, the transport roller 103 drives the mold 104 to move, the mold 104 is placed in the working position, and then the mold 104 is cast, the molten casting iron is introduced into the casting bucket 112, the sliding frame 109 is driven to slide on the mounting plate 102, the sliding frame 109 drives the casting bucket 112 to move, and when the casting bucket 112 is in contact with the casting bucket 112, the casting bucket 112 is moved. After the mold 104 is aligned, the rotating disk 110 is driven to rotate, the rotating disk 110 adjusts the position of the casting bucket 112, and the adjusting frame 111 is driven to slide on the rotating disk 110. The adjusting frame 111 drives the casting bucket 112 to approach the mold 104, and the casting bucket 112 is driven to rotate on the adjusting frame 111. The casting bucket 112 is tilted on the adjusting frame 111, and the molten iron in the casting bucket 112 is poured into the mold 104 through the pouring hole 107 to complete the casting of the manhole cover.
[0022] During the cooling process, the temperature and humidity around the mold 104 need to be controlled to ensure that there will be no defects in the manhole cover after casting. The second sliding frame 201 is driven to slide on the second mounting plate 108, and the second sliding frame 201 drives the processing frame 203 to move. When the processing frame 203 is aligned with the mold 104 that needs to be controlled, the lifting plate 202 is driven to slide on the second sliding frame 201, and the lifting plate 202 drives the processing frame 203 to approach the mold 104, and drives the water spray head 204 to spray water. The water sprayed by the water spray head 204 cools down the periphery of the mold 104, and at the same time drives the blowing head 206 to work, blowing The wind head 206 forms a wind wall on the inner side of the water spray head 204 to prevent the water sprayed by the water spray head 204 from falling on the mold 104 and causing defects in the casting in the mold 104. The blowing head 206 is driven to rotate on the processing rack 203 to change the position of the wind wall of the blowing head 206 to improve the control efficiency. When the mold 104 needs to be heated, the heating head 205 is driven to heat the mold 104 to ensure that the temperature of the mold 104 changes slowly, thereby improving the qualified rate of the casting manhole cover. The water sprayed by the water spray head 204 enters the recovery chamber 113 and is then discharged through the leakage hole 106.
Claims
1. A heating and humidifying device for casting ductile iron manhole covers, comprising a casting assembly (1), characterized in that: The casting assembly (1) includes a base (101), and a mounting plate 1 (102) and a mounting plate 2 (108) are respectively provided on both sides of the base (101). A plurality of transport rollers (103) are rotatably provided on the base (101), and a mold (104) is placed on the transport rollers (103). A casting bucket (112) is provided on the mounting plate 1 (102), and the casting bucket (112) casts the mold (104). A second sliding frame (201) is slidably provided on the second mounting plate (108), a lifting plate (202) is slidably provided on the second sliding frame (201), a processing frame (203) is provided on the lifting plate (202), a heating head (205) and a plurality of water spray heads (204) are provided in the processing frame (203), and the water spray heads (204) achieve cooling by sprinkling water around the mold (104) and control the humidity around the mold (104) at the same time.
2. A heating and humidifying device for casting ductile iron manhole covers according to claim 1, characterized in that: A sliding frame (109) is slidably provided on the mounting plate (102), a rotating disk (110) is rotatably provided on the sliding frame (109), an adjusting frame (111) is slidably provided on the rotating disk (110), and the casting ladle (112) is rotatably installed on the adjusting frame (111).
3. The heating and humidifying device for casting ductile iron manhole covers according to claim 1, characterized in that: A recovery chamber (113) is provided in the base (101), and the recovery chamber (113) is arc-shaped. A plurality of water leakage holes (106) are provided at the lowest end of the recovery chamber (113), and the water leakage holes (106) discharge the water sprayed by the water spray head (204).
4. The heating and humidifying device for casting ductile iron manhole covers according to claim 1, characterized in that: A plurality of groups of air blowing heads (206) are rotatably arranged on the processing rack (203), and the air blown out by the air blowing heads (206) forms an air wall to isolate the water sprayed out by the water spraying heads (204).
5. The heating and humidifying device for casting ductile iron manhole covers according to claim 1, characterized in that: The water spray heads (204) are arranged in a rectangular manner on the processing frame (203), and the length and width of the rectangle of the water spray heads (204) are both greater than the length and width of the mold (104).