A homogeneous mixing device for coated sand
By combining the design of the frame, mixing box, conveying pipe, spiral blades and stirring rod, the problems of material accumulation and local unevenness in the coated sand mixing device are solved, and a more efficient and uniform mixing effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO RONGXINTAI IND & TRADE CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-26
AI Technical Summary
In existing coated sand mixing devices, materials tend to accumulate on the cylinder wall or bottom, resulting in insufficient mixing in local areas and affecting mixing efficiency and uniformity.
The design employs a combination of frame, mixing box, conveying pipe, spiral blade, stirring rod and drive components to achieve horizontal dispersion of the coated sand raw material and reciprocating deflection of the mixing box, thus avoiding material accumulation and uneven local mixing.
It improves the mixing efficiency and uniformity of coated sand, ensures that materials are fully mixed in multi-dimensional movement, and enhances the practicality of the mixing device.
Smart Images
Figure CN224273170U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mixing device technology, and in particular relates to a uniform mixing device for coated sand. Background Technology
[0002] Coated sand is a type of foundry sand used to make high-precision, high-strength casting molds. The production of coated sand requires the use of a mixing device to uniformly mix the various raw materials of the coated sand in proportion, thereby improving the quality and performance of the coated sand and meeting the requirements of casting production.
[0003] Existing coated sand mixing devices mostly adopt traditional single stirring or turning modes. The material moves along a single path in the cylinder, which easily leads to accumulation on the cylinder wall or bottom, resulting in insufficient mixing in local areas. This makes it difficult to achieve uniform dispersion of raw materials, affecting mixing efficiency and uniformity. Improvements are needed. Therefore, a uniform mixing device for coated sand is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a uniform mixing device for coated sand, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a uniform mixing device for coated sand, comprising a frame and a mixing box, wherein the mixing box is configured as a cylinder and is horizontally positioned, a raw material box is positioned above the mixing box, a conveying pipe is fixedly connected to the bottom of the raw material box, a vertical pipe is fixedly connected to the end of the conveying pipe, the vertical pipe is fixedly connected to the top of the mixing box, a conveying motor is fixedly installed at the end of the conveying pipe away from the vertical pipe, a spiral blade is rotatably arranged inside the conveying pipe, the output shaft end of the conveying motor is fixedly installed to the rotating shaft end of the spiral blade, a liquid injection pipe is fixedly connected to the middle of the mixing box, a stirring motor is fixedly installed on the side of the mixing box, a stirring rod is rotatably arranged inside the mixing box, the output shaft end of the stirring motor is fixedly installed to the rotating shaft end of the stirring rod, the middle of the mixing box is rotatably mounted on the frame, and a driving component for driving the mixing box to deflect is provided on the frame.
[0006] As a further description of the above solution: by setting up a frame, mixing box, cylinder, raw material box, conveying pipe, vertical pipe, conveying motor, spiral blade, liquid injection pipe, stirring motor, stirring rod, and the cooperation between the driving components, the coated sand raw material can be horizontally dispersed in the cylinder for mixing. During the mixing process, the mixing box can be driven to reciprocate, effectively avoiding the problems of material accumulation and uneven local mixing, improving mixing efficiency and mixing uniformity, and is highly practical.
[0007] Preferably, the driving component includes a drive motor fixedly installed on the side of the frame, a crossbar rotatably mounted on the frame, and a gear disk one and a gear disk two rotatably mounted on the side of the frame.
[0008] As a further description of the above scheme: the components within the drive unit are described.
[0009] Preferably, the output shaft end of the drive motor is fixedly installed to the crossbar shaft end, the crossbar shaft end is fixedly installed to the gear disc one shaft end, the gear disc one is meshed and connected to the gear disc two, and the gear disc two shaft end is fixedly installed to the mixing box shaft end.
[0010] As a further description of the above scheme, the connection relationship between the components within the drive unit is described.
[0011] Preferably, a cylinder is fixedly installed on one side of the gear disc, and a pressure plate is fixedly installed at the end of the cylinder output shaft.
[0012] As a further description of the above solution: the cylinder and pressure plate are set so that the gear plate can be limited after the mixing box angle is fully adjusted, so as to prevent the mixing box from being deflected by unexpected forces.
[0013] Preferably, the cylinder and the pressure plate are provided in two symmetrical sets.
[0014] As a further description of the above solution: the cylinder and the pressure plate are provided in two symmetrical sets, which can improve the limiting effect on the gear plate.
[0015] Preferably, the surface of the pressure plate is covered with a pad, the pad is made of rubber, and the surface of the pad has uniformly distributed anti-slip texture.
[0016] As a further description of the above solution: it can further improve the limiting effect on the gear disc one.
[0017] Preferably, the mixing chamber is threadedly connected to a side cover on the side away from the stirring motor.
[0018] As a further description of the above scheme: the mixing box is threaded with a side cover on the side away from the stirring motor. Driving the mixing box to tilt it will open the side cover, making it easier to discharge the mixed coated sand.
[0019] Preferably, both the raw material tank and the top of the injection pipe are threaded with sealing caps.
[0020] As a further description of the above solution: both the raw material tank and the top of the injection pipe are threaded with sealing caps to facilitate sealing of the raw material tank and the top of the injection pipe.
[0021] In summary, compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a frame, mixing box, cylinder, raw material box, conveying pipe, vertical pipe, conveying motor, spiral blade, liquid injection pipe, stirring motor, stirring rod, and driving components, the coated sand raw material can be horizontally dispersed in the cylinder for mixing. During the mixing process, the mixing box can be driven to reciprocate, effectively avoiding the problems of material accumulation and uneven local mixing, improving mixing efficiency and mixing uniformity, and making it highly practical. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a side view of the present invention.
[0024] Figure 3 This is a plan view of the test area structure of this utility model;
[0025] Figure 4 This is a front sectional view of the conveying pipe of this utility model;
[0026] Figure 5 This is a structural diagram of the stirring motor and stirring rod of this utility model.
[0027] Legend:
[0028] 1. Frame; 2. Mixing box; 4. Raw material box; 5. Conveying pipe; 6. Vertical pipe; 7. Conveying motor; 8. Spiral blade; 9. Liquid injection pipe; 10. Stirring motor; 11. Stirring rod; 12. Driving component; 121. Drive motor; 122. Crossbar; 123. Gear disc one; 124. Gear disc two; 13. Cylinder; 14. Pressure plate; 15. Side cover; 16. Sealing cover. Detailed Implementation
[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-5 This utility model provides a technical solution:
[0031] A uniform mixing device for coated sand includes a frame 1 and a mixing chamber 2. The mixing chamber 2 is a cylindrical body and is horizontally positioned. A raw material box 4 is positioned above the mixing chamber 2. A conveying pipe 5 is fixedly connected to the bottom of the raw material box 4. A vertical pipe 6 is fixedly connected to the end of the conveying pipe 5. The vertical pipe 6 is fixedly connected to the top of the mixing chamber 2. A conveying motor 7 is fixedly installed at the end of the conveying pipe 5 away from the vertical pipe 6. A spiral blade 8 is rotatably arranged inside the conveying pipe 5. The output shaft end of the conveying motor 7 is fixedly installed to the rotating shaft end of the spiral blade 8. A liquid injection pipe 9 is fixedly connected to the middle of the mixing chamber 2. A stirring motor 10 is fixedly installed on the side of the mixing chamber 2. A stirring rod 11 is rotatably arranged inside the mixing chamber 2. The output shaft end of the stirring motor 10 is fixedly installed to the rotating shaft end of the stirring rod 11. The mixing tank 2 is rotatably mounted on the frame 1 in the middle. The frame 1 is provided with a driving component 12 for driving the mixing tank 2 to deflect. The driving component 12 includes a driving motor 121 fixedly installed on the side of the frame 1, a crossbar 122 rotatably mounted on the frame 1, and a gear disk 123 and a gear disk 124 rotatably mounted on the side of the frame 1. The output shaft end of the driving motor 121 is fixedly installed to the rotating shaft end of the crossbar 122. The rotating shaft end of the crossbar 122 is fixedly installed to the rotating shaft end of the gear disk 123. The gear disk 123 and the gear disk 124 are meshed and connected for transmission. The rotating shaft end of the gear disk 124 is fixedly installed to the rotating shaft end of the mixing tank 2.
[0032] In use, the frame 1 supports the entire device, the mixing box 2 is used to store the solid coated sand, and the injection pipe 9 is used to inject the liquid additives for the coated sand.
[0033] Start the conveyor motor 7 at the end of the conveyor pipe 5. The output shaft of the conveyor motor 7 drives the spiral blade 8 inside the conveyor pipe 5 to rotate. The rotation of the spiral blade 8 conveys the solid raw materials in the raw material box 4 along the conveyor pipe 5 and the vertical pipe 6 to the mixing box 2. At the same time, the liquid additive is injected into the mixing box 2 through the injection pipe 9.
[0034] Subsequently, the stirring motor 10 on the side of the mixing chamber 2 is started. The output shaft of the stirring motor 10 drives the stirring rod 11 to rotate inside the mixing chamber 2, stirring the solid raw materials and liquid additives that have entered the mixing chamber 2. Since the mixing chamber 2 is set horizontally, the raw materials are horizontally dispersed and mixed inside the mixing chamber 2, improving the mixing effect.
[0035] When further improvement in mixing effect is required, the drive motor 121 on the side of the frame 1 is activated. The output shaft of the drive motor 121 drives the crossbar 122 to rotate back and forth. The crossbar 122 drives the gear disc 123 to rotate back and forth. The gear disc 123 meshes with the gear disc 124, thereby driving the gear disc 124 to rotate back and forth. Since the shaft end of the gear disc 124 is fixedly installed with the shaft end of the mixing box 2, the mixing box 2 deflects back and forth under the drive of the gear disc 124. During the mixing process, the mixing box 2 deflects back and forth continuously, so that the material can be mixed horizontally and multi-dimensionally, effectively avoiding the problems of material accumulation and uneven local mixing, and improving mixing efficiency and uniformity.
[0036] A cylinder 13 is fixedly installed on one side of the gear disc 123 in the frame 1. A pressure plate 14 is fixedly installed at the end of the output shaft of the cylinder 13. The pressure plate 14 is located on the side of the gear disc 123.
[0037] After the mixing box 2 completes the angle adjustment under the action of the drive component 12, the cylinder 13 located on one side of the gear disk 123 in the start frame 1 is activated. The output shaft of the cylinder 13 extends and drives the pressure plate 14 to move towards the gear disk 123 until the pressure plate 14 is in contact with the side of the gear disk 123. At this time, the pressure plate 14 forms a block on the gear disk 123, restricting the rotation of the gear disk 123 and preventing the mixing box 2 from being deflected by unexpected forces.
[0038] The cylinder 13 and the pressure plate 14 are provided in two symmetrical sets;
[0039] Since the cylinder 13 and the pressure plate 14 are provided in two symmetrical sets, when the gear disc 123 is limited, the two sets of cylinder 13 and pressure plate 14 apply pressure to the gear disc 123 from opposite sides at the same time, thereby fixing the angle of the mixing box 2 more stably and ensuring the stability of the mixing process.
[0040] A pad is laid on the surface of the pressure plate 14. The pad is made of rubber and has uniformly distributed anti-slip texture on its surface.
[0041] The rubber pad on the surface of the pressure plate 14, utilizing the good elasticity of rubber, can closely adhere to the surface of the gear disc 123, increasing the friction between the pressure plate 14 and the gear disc 123. At the same time, the uniformly distributed anti-slip texture on the surface of the pad further increases the roughness of the contact surface, further enhancing the friction. When the pressure plate 14 presses against the side of the gear disc 123, the rubber pad and the anti-slip texture work together to more firmly restrict the rotation of the gear disc 123, further improving the limiting effect on the gear disc 123 and ensuring that the mixing box 2 will not deflect arbitrarily due to external forces during the mixing process.
[0042] A side cover 15 is threadedly connected to the side of the mixing chamber 2 away from the stirring motor 10;
[0043] After the coated sand is mixed, the mixing box 2 is tilted by the drive component 12 so that the side of the mixing box 2 away from the stirring motor 10 is in a low position. Then, the side cover 15 connected by the thread on the side of the mixing box 2 away from the stirring motor 10 is unscrewed, and the mixed coated sand flows out smoothly from the opened side cover 15, which makes the discharge operation convenient and quick, improving the convenience and efficiency of discharge.
[0044] Both the raw material tank 4 and the injection pipe 9 are threadedly connected to a sealing cap 16 at the top;
[0045] When the raw material box 4 and the liquid injection pipe 9 are not in use, the sealing cap 16 is threaded onto the top of the raw material box 4 and the liquid injection pipe 9 respectively, which effectively blocks the entry of external dust, moisture and other substances, and prevents the solid raw materials in the raw material box 4 from getting damp and deteriorating.
[0046] Working principle:
[0047] In use, the frame 1 supports the entire device, the mixing box 2 is used to store the solid coated sand, and the injection pipe 9 is used to inject the liquid additives for the coated sand.
[0048] Start the conveyor motor 7 at the end of the conveyor pipe 5. The output shaft of the conveyor motor 7 drives the spiral blade 8 inside the conveyor pipe 5 to rotate. The rotation of the spiral blade 8 conveys the solid raw materials in the raw material box 4 along the conveyor pipe 5 and the vertical pipe 6 to the mixing box 2. At the same time, the liquid additive is injected into the mixing box 2 through the injection pipe 9.
[0049] Subsequently, the stirring motor 10 on the side of the mixing chamber 2 is started. The output shaft of the stirring motor 10 drives the stirring rod 11 to rotate inside the mixing chamber 2, stirring the solid raw materials and liquid additives that have entered the mixing chamber 2. Since the mixing chamber 2 is set horizontally, the raw materials are horizontally dispersed and mixed inside the mixing chamber 2, improving the mixing effect.
[0050] When further improvement of the mixing effect is required, the drive motor 121 on the side of the frame 1 is started. The output shaft of the drive motor 121 drives the crossbar 122 to rotate back and forth. The crossbar 122 drives the toothed disc 123 to rotate back and forth. The toothed disc 123 meshes with the toothed disc 124, which in turn drives the toothed disc 124 to rotate back and forth. Since the shaft end of the toothed disc 124 is fixedly installed with the shaft end of the mixing box 2, the mixing box 2 deflects back and forth under the drive of the toothed disc 124. During the mixing process, the mixing box 2 deflects back and forth continuously, so that the material can be mixed horizontally and multi-dimensionally, which can effectively avoid the problems of material accumulation and uneven local mixing, and improve the mixing efficiency and uniformity.
[0051] in,
[0052] After the mixing box 2 completes the angle adjustment under the action of the drive component 12, the cylinder 13 located on one side of the gear disk 123 of the start frame 1 is activated. The output shaft of the cylinder 13 extends and drives the pressure plate 14 to move towards the gear disk 123 until the pressure plate 14 is in contact with the side of the gear disk 123. At this time, the pressure plate 14 forms a block on the gear disk 123, restricting the rotation of the gear disk 123 and preventing the mixing box 2 from being deflected by unexpected forces.
[0053] Since the cylinder 13 and the pressure plate 14 are provided in two symmetrical sets, when the toothed disc 123 is limited, the two sets of cylinder 13 and pressure plate 14 apply pressure to the toothed disc 123 from opposite sides at the same time, thereby fixing the angle of the mixing box 2 more stably and ensuring the stability of the mixing process.
[0054] The rubber pad on the surface of the pressure plate 14, utilizing the good elasticity of the rubber material, can closely adhere to the surface of the gear disc 123, increasing the friction between the pressure plate 14 and the gear disc 123. At the same time, the uniformly distributed anti-slip texture on the surface of the pad further increases the roughness of the contact surface, further enhancing the friction. When the pressure plate 14 presses against the side of the gear disc 123, the rubber pad and the anti-slip texture work together to more firmly restrict the rotation of the gear disc 123, further improving the limiting effect on the gear disc 123 and ensuring that the mixing box 2 will not deflect arbitrarily due to external forces during the mixing process.
[0055] After the coated sand is mixed, the mixing box 2 is tilted by the drive component 12 so that the side of the mixing box 2 away from the stirring motor 10 is in a low position. Then, the side cover 15 connected by the thread on the side of the mixing box 2 away from the stirring motor 10 is unscrewed, and the mixed coated sand flows out smoothly from the opened side cover 15, which makes the discharge operation convenient and quick, and improves the convenience and efficiency of discharge.
[0056] When the raw material box 4 and the liquid injection pipe 9 are not in use, the sealing cap 16 is threaded onto the top of the raw material box 4 and the liquid injection pipe 9 respectively, which effectively blocks the entry of external dust, moisture and other substances, and prevents the solid raw materials in the raw material box 4 from getting damp and deteriorating.
[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A uniform mixing device for coated sand, comprising a frame (1) and a mixing box (2), characterized in that, The mixing box (2) is configured as a cylindrical body and is horizontally positioned. A raw material box (4) is positioned above the mixing box (2). A conveying pipe (5) is fixedly connected to the bottom of the raw material box (4). A vertical pipe (6) is fixedly connected to the end of the conveying pipe (5). The vertical pipe (6) is fixedly connected to the top of the mixing box (2). A conveying motor (7) is fixedly installed at the end of the conveying pipe (5) away from the vertical pipe (6). A spiral blade (8) is rotatably arranged inside the conveying pipe (5). The conveying motor (7) delivers... The output shaft end is fixedly installed with the rotating shaft end of the spiral blade (8). The middle part of the mixing box (2) is fixedly connected with the liquid injection pipe (9). The side of the mixing box (2) is fixedly installed with the stirring motor (10). The mixing box (2) is rotatably installed with the stirring rod (11). The output shaft end of the stirring motor (10) is fixedly installed with the rotating shaft end of the stirring rod (11). The middle part of the mixing box (2) is rotatably installed on the frame (1). The frame (1) is provided with a driving component (12) for driving the mixing box (2) to deflect.
2. The uniform mixing device for coated sand according to claim 1, characterized in that, The drive unit (12) includes a drive motor (121) fixedly installed on the side of the frame (1), a crossbar (122) rotatably installed on the frame (1), and a gear disk one (123) and a gear disk two (124) rotatably installed on the side of the frame (1).
3. The uniform mixing device for coated sand according to claim 2, characterized in that, The output shaft end of the drive motor (121) is fixedly installed with the shaft end of the crossbar (122), the shaft end of the crossbar (122) is fixedly installed with the shaft end of the first gear disc (123), the first gear disc (123) is meshed and connected to the second gear disc (124), and the shaft end of the second gear disc (124) is fixedly installed with the shaft end of the mixing box (2).
4. The uniform mixing device for coated sand according to claim 1, characterized in that, A cylinder (13) is fixedly installed on one side of the gear disc (123) in the frame (1), and a pressure plate (14) is fixedly installed at the end of the output shaft of the cylinder (13).
5. A uniform mixing device for coated sand according to claim 4, characterized in that, The cylinder (13) and the pressure plate (14) are provided in two symmetrical sets.
6. A uniform mixing device for coated sand according to claim 5, characterized in that, The pressure plate (14) is covered with a pad, which is made of rubber and has uniformly distributed anti-slip texture on its surface.
7. The uniform mixing device for coated sand according to claim 1, characterized in that, The mixing chamber (2) is threaded with a side cover (15) on the side away from the stirring motor (10).
8. The uniform mixing device for coated sand according to claim 1, characterized in that, The top of both the raw material tank (4) and the injection pipe (9) are threaded with sealing caps (16).