Rotary sand feeder for molding machine

Abstract

The utility model provides a rotary sand feeder for a molding machine, which comprises a storage barrel, a feeding barrel, a first driving motor, a control panel, a feed port, a rotating shaft, a stirring rod, a second driving motor and a rotary sand discharging machine, the feeding barrel is arranged on the left side of the storage barrel, the first driving motor is mounted at the top of the feeding barrel, and the control panel is mounted on the outer side surface of the feeding barrel. A feeding port is formed in the outer side face of the feeding barrel, a rotating shaft is rotationally arranged in the feeding barrel, a stirring rod is rotationally arranged in the storage barrel, a second driving motor is installed on the outer side face of the storage barrel, and a rotating sand discharging machine is arranged below the storage barrel. According to the design, the problems that an original rotary sand adding device for the molding machine is inconvenient to feed and stacking and bridging are prone to occurring in the rotary sand adding device are solved, the rotary sand adding device is reasonable in structure, feeding is conducted on the storage barrel through cooperation of the feeding barrel and the auger blade, sand in the storage barrel is stirred through the stirring rod, normal flowing discharging of the sand is guaranteed, and practicability is high.

Description

Technical Field

[0001] This utility model is a rotary sand feeder for a molding machine, belonging to the technical field of rotary sand feeders. Background Technology

[0002] A molding machine is a foundry device used to manufacture sand molds. Its main function is sand filling; it loads loose molding sand into a sand box and compacts the sand using various methods such as vibration, compaction, shock pressing, and injection pressing. This ensures the sand mold has the necessary strength for handling and pouring. Finally, different mechanisms are used to remove the pattern from the compacted sand mold.

[0003] Chinese patent CN218809158U proposes a rotary sand feeder for molding machines. Although the design achieves rotary sand feeding and improves sand feeding efficiency through the arrangement and coordination of a storage tank, a discharge pipe, and a rotating sand discharge machine, the storage tank is positioned too high, making it inconvenient to add sand into the tank. Furthermore, the sand tends to accumulate and bridge inside the tank, affecting its normal falling. Therefore, the design has low practicality. There is an urgent need for a rotary sand feeder for molding machines to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a rotary sand feeder for molding machines, thereby solving the problems mentioned in the background art. This utility model has a reasonable structure, which uses a feeding cylinder and an auger blade to feed the storage tank, and uses a stirring rod to agitate the sand inside the storage tank, ensuring the normal flow and discharge of the sand. It is highly practical.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a rotary sand feeder for a molding machine, comprising a storage bin, a feeding cylinder, a first drive motor, a control panel, a feed inlet, a rotating shaft, a stirring rod, a second drive motor, and a rotary sand discharger. The feeding cylinder is located on the left side of the storage bin, the first drive motor is installed on the top of the feeding cylinder, the control panel is installed on the outer side of the feeding cylinder, the feed inlet is located on the outer side of the feeding cylinder, the rotating shaft is rotatably installed inside the feeding cylinder, the stirring rod is rotatably installed inside the storage bin, the second drive motor is installed on the outer side of the storage bin, and the rotary sand discharger is located below the storage bin.

[0006] Furthermore, a screen is provided inside the feed inlet, a bearing connecting seat is embedded inside the feeding cylinder, the rotating shaft is rotatably connected to the inner wall of the feeding cylinder through the bearing connecting seat, an auger blade is provided on the outer side of the rotating shaft, and the output end of the first drive motor is connected to the rotating shaft.

[0007] Furthermore, a first fixing frame is installed on the upper end face of the feeding cylinder, and the first drive motor is fixedly connected to the feeding cylinder through the first fixing frame. The input end of the first drive motor is electrically connected to the control panel through a wire.

[0008] Furthermore, a fixing frame is welded to the outer side of the feeding cylinder, and the feeding cylinder is fixedly connected to the outer side of the storage barrel through the fixing frame. A discharge port is provided on the outer side of the feeding cylinder, and the discharge port corresponds to the opening of the storage barrel.

[0009] Furthermore, a second fixing frame is welded to the outer side of the storage hopper, and the second drive motor is fixedly connected to the outer side of the storage hopper through the second fixing frame. The input end of the second drive motor is electrically connected to the control panel through a wire.

[0010] Furthermore, a motor shaft is mounted on the output end of the second drive motor, a sealing connector is embedded inside the storage hopper, the motor shaft is rotatably connected to the sealing connector, and the motor shaft is fixedly connected to the stirring rod.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a rotary sand feeder for a molding machine. Because it incorporates a second drive motor, a stirring rod, a feeding cylinder, and a first drive motor, the sand inside the storage bin falls into the rotary sand discharger under gravity, thus replenishing the sand in real time. The second drive motor drives the stirring rod to rotate via its motor shaft, continuously agitating the sand inside the storage bin. The rotation of the stirring rod breaks up the bridging caused by sand accumulation and blockage inside the storage bin, ensuring the normal falling of the sand. When the sand inside the storage bin is insufficient, the user can add sand into the feeding cylinder through the inlet. Simultaneously, the first drive motor starts and drives the rotating shaft to rotate. The rotating shaft drives the auger blades to rotate, lifting the sand inside the feeding cylinder and ultimately allowing it to fall into the storage bin through the outlet, thus completing the lifting and replenishment process. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a rotary sand feeder for a molding machine according to the present invention;

[0014] Figure 2 This is a structural schematic diagram of a rotary sand feeder for a molding machine according to this utility model from another perspective;

[0015] Figure 3 This is a partial cross-sectional view of a rotary sand feeder for a molding machine according to this utility model;

[0016] Figure 4This is a partial cross-sectional view of a rotary sand feeder for a molding machine according to this utility model;

[0017] In the diagram: 1-Storage hopper, 11-Support frame, 12-Discharge port, 2-Feeding cylinder, 21-Fixed frame, 22-Discharge port, 3-First drive motor, 31-First fixed frame, 4-Control panel, 5-Feed inlet, 51-Screen, 6-Rotating shaft, 61-Auger blade, 62-Bearing connecting seat, 7-Agitator rod, 8-Second drive motor, 81-Motor shaft, 811-Sealing connector, 82-Second fixed frame, 9-Rotating sand discharger. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a rotary sand feeder for a molding machine, including a storage tank 1, a feeding cylinder 2, a first drive motor 3, a control panel 4, a feed inlet 5, a rotating shaft 6, a stirring rod 7, a second drive motor 8, and a rotary sand discharger 9. The feeding cylinder 2 is located on the left side of the storage tank 1, the first drive motor 3 is installed on the top of the feeding cylinder 2, the control panel 4 is installed on the outer side of the feeding cylinder 2, the feed inlet 5 is located on the outer side of the feeding cylinder 2, the rotating shaft 6 is rotatably installed inside the feeding cylinder 2, the stirring rod 7 is rotatably installed inside the storage tank 1, the second drive motor 8 is installed on the outer side of the storage tank 1, and the rotary sand discharger 9 is located below the storage tank 1. This design solves the problems of inconvenient feeding and easy accumulation and bridging inside the original rotary sand feeder for molding machines.

[0020] As the first embodiment of this utility model: a screen 51 is provided inside the feed inlet 5 to prevent large pebbles from entering the feed cylinder 2 through the feed inlet 5. A bearing connecting seat 62 is embedded inside the feed cylinder 2, and the rotating shaft 6 is rotatably connected to the inner wall of the feed cylinder 2 through the bearing connecting seat 62. The bearing connecting seat 62 can fix the position of the lower end of the rotating shaft 6, thereby making the rotation of the rotating shaft 6 more stable. An auger blade 61 is provided on the outer side of the rotating shaft 6, and the rotating shaft 6 can drive the auger blade 61 to rotate, thereby transporting the sand inside the feed cylinder 2 upward. The output end of the first drive motor 3 is connected to the rotating shaft 6, and the first drive motor 3 can drive the rotating shaft 6 to rotate. A first fixing frame 31 is installed on the upper end face of the feed cylinder 2, and the first drive motor 3 is fixedly connected to the feed cylinder 2 through the first fixing frame 31. The first fixing frame 31 can fix the position of the first drive motor 3. The input end of the first drive motor 3 is electrically connected to the control panel 4 through a wire. The control panel 4 can control the opening and closing of the first drive motor 3. The feed cylinder 2 is closed. A fixing frame 21 is welded to the outer side of the feed cylinder 2. The feed cylinder 2 is fixedly connected to the outer side of the storage tank 1 through the fixing frame 21. A discharge port 22 is provided on the outer side of the feed cylinder 2. The discharge port 22 corresponds to the opening of the storage tank 1. The discharge port 22 can add sand into the storage tank 1. A second fixing frame 82 is welded to the outer side of the storage tank 1. The second drive motor 8 is fixedly connected to the outer side of the storage tank 1 through the second fixing frame 82. The input end of the second drive motor 8 is electrically connected to the control panel 4 through a wire. The control panel 4 can control the opening and closing of the second drive motor 8. A motor shaft 81 is clamped at the output end of the second drive motor 8. A sealing connector 811 is embedded inside the storage tank 1. The motor shaft 81 is rotatably connected to the sealing connector 811. The motor shaft 81 is fixedly connected to the stirring rod 7. When the second drive motor 8 is turned on, the stirring rod 7 can be driven to rotate through the motor shaft 81. The rotation of the stirring rod 7 can break the bridging state formed by the sand accumulation and blockage inside the storage tank 1, thereby ensuring the normal falling of the sand.

[0021] As a second embodiment of this utility model: when the auger inside the rotating sand discharger 9 operates to discharge sand, the sand inside the storage bin 1 will fall into the rotating sand discharger 9 under the action of gravity, thereby replenishing the sand in real time. At the same time, the second drive motor 8 remains on, and the second drive motor 8 drives the stirring rod 7 to rotate through the motor shaft 81, thereby continuously stirring the sand inside the storage bin 1. The rotation of the stirring rod 7 can break the bridging state formed by the accumulation and blockage of sand inside the storage bin 1, thereby ensuring the normal falling of sand. When the sand inside the storage bin 1 is insufficient, the user can add sand into the upper material cylinder 2 through the feed port 5. At the same time, the first drive motor 3 is turned on and drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the auger blade 61 to rotate, thereby lifting the sand inside the upper material cylinder 2 and finally letting it fall into the storage bin 1 through the discharge port 22, thereby completing the lifting and replenishment.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotating sand feeder for a molding machine, comprising a storage barrel, a feeding cylinder, a first driving motor, a control panel, a feeding inlet, a rotating shaft, a stirring rod, a second driving motor and a rotating sand outlet machine, characterized in that: The left side of the storage barrel is provided with a feeding cylinder, a first driving motor is installed on the top of the feeding cylinder, a control panel is installed on the outer side of the feeding cylinder, a feeding port is arranged on the outer side of the feeding cylinder, a rotating shaft is rotatably arranged in the feeding cylinder, an agitating rod is rotatably arranged in the storage barrel, a second driving motor is installed on the outer side of the storage barrel, and a rotating sand discharging machine is arranged below the storage barrel.

2. A rotating sand charger for a molding machine according to claim 1, characterized in that: A screen is arranged in the feeding port, a bearing connecting seat is embedded in the feeding cylinder, the rotating shaft is rotatably connected with the inner wall of the feeding cylinder through the bearing connecting seat, and helical blade is arranged on the outer side of the rotating shaft.

3. A rotating sand charger for a molding machine according to claim 1, characterized in that: A first fixing frame is installed on the upper end surface of the feeding cylinder, the first driving motor is fixedly connected with the feeding cylinder through the first fixing frame, and the input end of the first driving motor is electrically connected with the control panel through wires.

4. A rotating sand charger for a molding machine according to claim 1, characterized in that: A fixing frame is welded on the outer side of the feeding cylinder, the feeding cylinder is fixedly connected with the outer side of the storage barrel through the fixing frame, a discharging port is arranged on the outer side of the feeding cylinder, and the discharging port corresponds to the opening of the storage barrel.

5. A rotating sand charger for a molding machine according to claim 1, wherein: A second fixing frame is welded on the outer side of the storage barrel, the second driving motor is fixedly connected with the outer side of the storage barrel through the second fixing frame, and the input end of the second driving motor is electrically connected with the control panel through wires.

6. A rotating sand charger for a molding machine according to claim 1, wherein: A motor shaft is clamped on the output end of the second driving motor, a sealing connecting piece is embedded in the storage barrel, the motor shaft is rotatably connected with the sealing connecting piece, and the motor shaft is fixedly connected with the agitating rod.

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