A ladle cover switch device for a camshaft casting machine
By designing a ladle cover switch device for a camshaft casting machine, the automatic winding and unwinding of the ladle cover wire rope is achieved, solving the problems of increased labor and safety hazards caused by manual operation, and improving the safety and efficiency of camshaft casting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南中汇动力股份有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
In the current camshaft casting process, the operation of winding and unwinding the steel wire rope of the ladle cover relies on manual labor, which increases the workload and poses safety hazards.
Design a ladle cover switch device for a camshaft casting machine. Through the linkage control of the tilting device and the winding device, the action of the lifting motor and the winding motor are coordinated by the electronic control system to realize the automatic winding and unwinding of the ladle cover wire rope.
It completely replaces manual operation, reduces labor, improves safety, and ensures that the ladle cover remains stably on the ladle during the pouring or returning process.
Smart Images
Figure CN224543117U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of casting equipment, specifically relating to a ladle cover switch device for a camshaft casting machine. Background Technology
[0002] The camshaft is a crucial component in a fuel-powered engine. Currently, camshaft blanks are primarily produced using a casting process. Molten metal is poured into a camshaft mold on a casting machine, and after cooling, it takes its initial shape. This is followed by a series of machining processes to finalize the camshaft into a finished product. The casting process requires a ladle to hold and pour the molten metal. To maintain the temperature and safety of the molten metal inside the ladle, and to facilitate the addition and observation of the molten metal, the ladle is typically equipped with an operable ladle cover. A steel cable is attached to the ladle cover for operation. During casting, as the ladle tilts to pour the molten metal into the mold, and after casting is complete and the ladle is leveled, the ladle cover must remain on the ladle at all times. Therefore, the steel cable for the ladle cover needs to be extended or retracted accordingly. Traditionally, this operation was done manually, increasing labor costs and posing safety hazards. Therefore, there is an urgent need to design a ladle cover switch device for camshaft casting machines that can replace manual operation. Utility Model Content
[0003] In response to the above situation, this utility model provides a ladle cover switch device for a camshaft casting machine, which can completely replace manual operation of the ladle cover wire rope winding and unwinding.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A ladle cover switching device for a camshaft casting machine includes a casting machine and a molding die mounted on the casting machine, and a ladle platform located at the rear of the casting machine. A ladle for pouring molten material into the molding die is positioned in the middle of the ladle platform. The front of the ladle is rotatably mounted above the ladle platform via a fulcrum structure. A ladle cover that can be opened laterally and upwards is located above the top opening of the ladle. The upper rear side of the ladle is rotatably connected to the ladle cover via a hinge structure. A transmission chain for driving the ladle tilting action is connected to the lower rear side of the ladle. A wire rope for controlling the opening and closing action of the ladle cover is connected above the ladle cover. A tilting device frame and a winding device frame are sequentially arranged at the rear of the ladle platform. The tilting device frame is equipped with a tilting device for driving the transmission chain, and the winding device frame is equipped with a winding device for pulling the wire rope. An electrical control box for controlling the entire device is located on the outside of the tilting device frame.
[0006] Furthermore, the fulcrum structure includes fulcrum pivots symmetrically welded to the left and right sides of the front part of the ladle, and the left and right sides of the front part of the ladle platform are provided with U-shaped notches for fitting the two fulcrum pivots.
[0007] Furthermore, the hinge structure includes a support frame fixed to the upper rear side of the ladle, and a hinge seat installed above the support frame. A flipping frame is welded to the upper surface of the ladle cover, and the rear end of the flipping frame is rotatably hinged to the hinge seat.
[0008] Furthermore, a lifting frame is fixedly welded to the lower rear side of the ladle, and one end of the transmission chain is connected to the ladle through the lifting frame.
[0009] Furthermore, a lifting lug is welded to the middle of the upper surface of the ladle cover, and one end of the steel wire rope is connected to the ladle cover through the lifting lug.
[0010] Furthermore, the tilting device includes a lifting shaft rotatably mounted on the top of the tilting device frame. Sprockets are coaxially fixed on the outer sides of the left and right ends of the lifting shaft, and one end of the lifting shaft is connected to the output shaft of the lifting motor. The lifting motor is fixedly installed on the outside of the tilting device frame. The lower left and right sides of the rear side of the ladle are each connected to a transmission chain through the lifting frame. The two transmission chains mesh around the top of the two sprockets. Fixing frames are provided on the left and right sides of the rear side of the tilting device frame. The other ends of the two transmission chains are respectively connected to the top of the two fixing frames through fixing bolts.
[0011] Furthermore, the winding device includes a winch for winding and unwinding the wire rope, and a guide pulley for guiding the wire rope. The winch includes a winding drum and a winding motor. The left and right ends of the winding drum are rotatably connected to the winding device frame via a drum frame. One end of the winding drum is connected to the output shaft of the winding motor. The winding motor is fixedly installed at the lower part of the winding device. The guide pulley is suspended at the top of the winding device frame. The other end of the wire rope passes over the guide pulley and is connected to the winding drum of the winch.
[0012] Furthermore, guide wheels are provided on the left and right sides of the tilting device frame to guide the two transmission chains. As the transmission chains drive the lower rear part of the ladle to gradually rise, the redundant part at the other end of the transmission chain will gradually loosen and droop under the guidance of the guide wheels. Three proximity switches are installed sequentially from top to bottom on the rear side of the fixing frame. The three proximity switches are all located below the fixing bolt at the other end of the transmission chain and are used to sense the drooping position of the transmission chain.
[0013] Furthermore, the electrical control box is equipped with an electrical control system that enables the tilting device and the winding device to be linked and controlled. By receiving the sensing signals from three proximity switches, as well as the automatic control circuit and program built into the electrical control system, the electrical control system can coordinate the actions between the winding motor and the lifting motor, thereby achieving an adaptive fit between the length of the ladle cover wire rope and the tilt angle of the ladle. This ensures that the ladle cover can always be stably placed on the ladle during the tilting or repositioning process.
[0014] This utility model also includes other components that enable its normal use, all of which are conventional means in the field. In addition, devices or components not limited in this utility model, such as casting machines, molding molds, ladles, ladle covers, ladle platforms, and electrical control boxes and their internal electrical control systems, all adopt existing technologies in the field.
[0015] The beneficial effects of this utility model are as follows:
[0016] The ladle cover switch device for camshaft casting machine provided by this utility model can completely replace manual operation of the ladle cover wire rope winding and unwinding, greatly reducing the workload of workers. It can also realize the linkage control between the ladle drive chain tilting device and the ladle cover wire rope winding device, ensuring that the ladle cover can always be stably covered on the ladle during the tilting or return process, which is conducive to improving the safety of camshaft casting work. Attached Figure Description
[0017] Figure 1 This is a side view of the ladle cover switch device for the camshaft casting machine in the embodiment.
[0018] Figure 2 for Figure 1 A top view of the ladle cover switch device for the camshaft casting machine along direction A. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.
[0020] It should be noted that the terms "up," "down," "front," "back," "left," "right," "inner," and "outer," which indicate directions or positional relationships, are based on the attached drawings and are used only for ease of description.
[0021] Example
[0022] like Figure 1-2As shown, a ladle cover switch device for a camshaft casting machine includes a casting machine 1 and a forming mold 2 installed on the casting machine, as well as a ladle platform 3 located at the rear of the casting machine. A ladle 4 for pouring molten metal into the forming mold is provided in the middle of the ladle platform.
[0023] Assuming the casting machine is located in front of the ladle, the front part of the ladle is rotatably mounted above the ladle platform via a fulcrum structure. A ladle cover 5, which can be opened laterally and upward, is provided above the top opening of the ladle. A drain nozzle 6 for pouring out liquid is provided on the front side of the top of the ladle. The upper rear side of the ladle is rotatably connected to the ladle cover via a hinge structure. A transmission chain 7 for driving the tilting action of the ladle is connected to the lower rear side of the ladle. A wire rope 8 for controlling the opening and closing action of the ladle cover is connected above the ladle cover.
[0024] The ladle platform is provided with a vertical tilting device frame 9 and a winding device frame 10 in sequence on the rear side. The tilting device frame is provided with a tilting device for driving the transmission chain, and the winding device frame is provided with a winding device for pulling the wire rope. An electrical control box 11 for controlling the entire ladle cover switching device is fixedly installed on the right outer wall of the tilting device frame.
[0025] Specifically, the fulcrum structure includes fulcrum pivots 12 symmetrically welded to the left and right sides of the front of the ladle. The left and right sides of the front of the ladle platform are provided with U-shaped openings 13 for fitting the two fulcrum pivots. The two fulcrum pivots of the ladle are movably mounted in the two U-shaped openings of the ladle platform.
[0026] Specifically, the hinge structure includes a support frame 14 fixed to the upper rear side of the ladle, and a hinge seat 15 installed above the support frame. A flipping frame 16 is welded to the upper surface of the ladle cover, and the rear end of the flipping frame is rotatably hinged to the hinge seat.
[0027] Specifically, a lifting frame 17 is fixedly welded to the lower rear side of the ladle, and one end of the transmission chain is connected to the ladle through the lifting frame.
[0028] Specifically, a lifting lug 18 is welded to the middle of the upper surface of the ladle cover, and one end of the steel wire rope is connected to the ladle cover through the lifting lug.
[0029] Specifically, the tilting device includes a lifting shaft 19 rotatably mounted on the top of the tilting device frame. Sprockets 20 are coaxially fixed on the outer sides of the left and right ends of the lifting shaft, and one end of the lifting shaft is connected to the output shaft of the lifting motor 21. The lifting motor is fixedly installed on the outside of the tilting device frame. The lower left and right sides of the rear side of the ladle are each connected to a transmission chain through the lifting frame. The two transmission chains mesh around the top of the two sprockets. Fixing frames 22 are provided on the left and right sides of the rear side of the tilting device frame. The other ends of the two transmission chains are respectively connected to the top of the two fixing frames through fixing bolts 23.
[0030] Specifically, the winding device includes a winch for winding and unwinding the wire rope, and a guide pulley 24 for guiding the wire rope. The winch includes a winding drum 25 and a winding motor 26. The left and right ends of the winding drum are rotatably connected to the winding device frame via a drum frame. One end of the winding drum is connected to the output shaft of the winding motor. The winding motor is fixedly installed at the lower part of the winding device. The guide pulley is suspended at the top of the winding device frame. The other end of the wire rope passes over the guide pulley and is connected to the winding drum of the winch.
[0031] Specifically, guide wheels 27 are provided on the left and right sides of the tilting device frame to guide the two transmission chains. As the transmission chains drive the lower rear part of the ladle to gradually rise, the redundant part at the other end of the transmission chain will gradually loosen and droop under the guidance of the guide wheels. Three proximity switches 28 are installed sequentially from top to bottom on the rear side of the fixing frame. The three proximity switches are all located below the fixing bolt at the other end of the transmission chain and are used to sense the drooping position of the transmission chain.
[0032] Specifically, the electrical control box is equipped with an electrical control system capable of coordinating the tilting device and the winding device. This electrical control system utilizes existing technology and will not be described in detail here. The lifting motor, the winding motor, and each of the proximity switches are all electrically connected to the electrical control box.
[0033] When the slack section of the drive chain reaches the upper first proximity switch, it indicates that the ladle has begun to tilt. Immediately afterward, the winding motor starts working, driving the winding drum to unwind the wire rope. Conversely, when the drive chain moves away from the lower third proximity switch, it indicates that the ladle is gradually returning to its original position, and the winding motor resumes winding the wire rope. The upper and lower proximity switches provide the start and stop signals for the wire rope winding / unwinding, respectively. The middle proximity switch serves as an intermediate error prevention signal, used to detect and prevent the drive chain from winding or deviating. The three proximity switches work together to prevent over-rotation of the drive chain and over-winding of the wire rope. They also allow for segmented winding / unwinding of the wire rope, ensuring that the winding / unwinding length always meets the tilting or returning requirements of the ladle cover, and ensuring that the ladle cover remains stably positioned over the ladle during tilting or returning.
[0034] The technical solution of this utility model is not limited to the specific embodiments described above. Without departing from the scope and spirit of the described embodiments, many modifications and changes will be obvious to those skilled in the art. Any technical modifications made within the spirit and principles of this utility model shall fall within the protection scope of this utility model.
Claims
1. A ladle cover switching device for a camshaft casting machine, comprising a casting machine and a molding die mounted on the casting machine, and a ladle platform disposed at the rear of the casting machine, wherein a ladle for pouring molten material into the molding die is disposed in the middle of the ladle platform, characterized in that: The front part of the ladle is rotatably mounted above the ladle platform via a fulcrum structure. A ladle cover that can be opened laterally and upwards is provided above the top opening of the ladle. The upper rear side of the ladle is rotatably connected to the ladle cover via a hinge structure. A transmission chain for driving the ladle tilting action is connected to the lower rear side of the ladle. A wire rope for controlling the opening and closing action of the ladle cover is connected above the ladle cover. A tilting device frame and a winding device frame are arranged sequentially on the rear side of the ladle platform. The tilting device frame is equipped with a tilting device for driving the transmission chain, and the winding device frame is equipped with a winding device for pulling the wire rope. An electrical control box is provided on the outside of the tilting device frame.
2. The ladle cover switch device for a camshaft casting machine according to claim 1, characterized in that: The fulcrum structure includes fulcrum pivots symmetrically welded to the left and right sides of the front part of the ladle, and U-shaped notches are correspondingly opened on the left and right sides of the front part of the ladle platform to accommodate the two fulcrum pivots.
3. The ladle cover switch device for a camshaft casting machine according to claim 1, characterized in that: The hinge structure includes a support frame fixed to the upper rear side of the ladle, and a hinge seat installed above the support frame. A flip frame is welded to the upper surface of the ladle cover, and the rear end of the flip frame is rotatably hinged to the hinge seat.
4. The ladle cover switch device for a camshaft casting machine according to claim 1, characterized in that: A lifting frame is fixedly welded to the lower rear side of the ladle, and one end of the transmission chain is connected to the ladle through the lifting frame.
5. The ladle cover switch device for a camshaft casting machine according to claim 1, characterized in that: A lifting lug is welded to the middle of the upper surface of the ladle cover, and one end of the steel wire rope is connected to the ladle cover through the lifting lug.
6. The ladle cover switch device for a camshaft casting machine according to claim 4, characterized in that: The tilting device includes a lifting shaft rotatably mounted on the top of the tilting device frame. Sprockets are coaxially fixed on the outer sides of the left and right ends of the lifting shaft, and one end of the lifting shaft is connected to the output shaft of the lifting motor. The lifting motor is fixedly installed on the outside of the tilting device frame. The lower left and right sides of the rear side of the ladle are each connected to a transmission chain through the lifting frame. The two transmission chains mesh around the top of the two sprockets. Fixing frames are provided on the left and right sides of the rear side of the tilting device frame, and the other ends of the two transmission chains are connected to the top of the two fixing frames.
7. The ladle cover switch device for a camshaft casting machine according to claim 6, characterized in that: The winding device includes a winch for winding and unwinding the wire rope, and a guide pulley for guiding the wire rope. The winch includes a winding drum and a winding motor. The left and right ends of the winding drum are rotatably connected to the winding device frame via a drum frame. One end of the winding drum is connected to the output shaft of the winding motor. The winding motor is fixedly installed at the lower part of the winding device. The guide pulley is suspended at the top of the winding device frame. The other end of the wire rope passes over the guide pulley and is connected to the winding drum of the winch.
8. The ladle cover switch device for a camshaft casting machine according to claim 7, characterized in that: The left and right sides of the tilting device frame are respectively provided with guide wheels for guiding the two transmission chains. As the transmission chains drive the lower rear part of the ladle to gradually rise, the slack part at the other end of the transmission chain will gradually droop under the guidance of the guide wheels. Three proximity switches are installed from top to bottom on the rear side of the fixing frame to sense the drooping position of the transmission chain.
9. A ladle cover switch device for a camshaft casting machine according to claim 8, characterized in that: The electrical control box is equipped with an electrical control system that enables the tilting device and the winding device to be linked and controlled. The lifting motor, the winding motor, and each of the proximity switches are all electrically connected to the electrical control box.