Adhesive stirring device for precision investment casting

Abstract

The utility model provides a precision investment casting adhesive stirring device which comprises a stirring tank used for stirring a precision investment casting adhesive, a top cover arranged on the upper surface of the stirring tank, a feeding port formed in the upper surface of the top cover, an anti-precipitation assembly arranged at the lower end of the center in the stirring tank, and a second motor arranged in the center of the upper surface of the top cover. An output shaft of the second motor penetrates through the lower surface of the top cover to be connected with a stirring rod, a double-end conical block is installed on the middle section of the stirring rod, a butterfly-shaped stirring block is fixedly installed in the center of the lower surface of the stirring rod, and the lower surface of the stirring tank communicates with a discharging valve pipe. The connecting and fixing rods on the two sides of the double-end conical block also rotate along with the double-end conical block to drive the stirring ring to rotate, so that an adhesive in the stirring tank is stirred in the rotating process, the stirring range is expanded, the adhesive is mixed more uniformly, and the bottom of silica sol at the bottom in the stirring tank is stirred through the anti-precipitation assembly; a second motor does not need to be started to drive a stirring rod to stir, and energy loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of silica sol stirring technology, specifically to a stirring device for investment casting adhesives. Background Technology

[0002] In investment casting, silica sol is widely used as an important binder. The performance of silica sol binder plays a key role in the quality of investment casting. For example, the strength, permeability, and dimensional accuracy of the mold shell are all closely related to the quality of the silica sol binder. Silica sol often needs to be mixed with other components to adjust its properties to meet different casting requirements, and stirring is required during processing.

[0003] For example, the national authorized patent announcement number CN221156265U discloses a silica sol stirring device, including a stirring tank. A sealing cover is provided above the stirring tank. An electromechanical box is fixedly connected to the upper surface of the sealing cover. A servo motor is fixedly connected to the inner top wall of the electromechanical box. A bearing is fixedly embedded in the inner top wall of the sealing cover. A rotating rod is fixedly connected to the inner ring of the bearing. The top end of the rotating rod is connected to the output end of the servo motor. A stirring rod is fixedly connected to the bottom end of the rotating rod. Two stirring blades are fixedly connected to the outer surface of the stirring rod. This silica sol stirring device, by setting a circular water spray pipe on the sealing cover and connecting it to a water guide pipe, allows workers to quickly clean impurities on the inner wall of the stirring tank after silica sol processing, effectively preventing impurities from adhering to the inside of the tank and affecting subsequent production, thus improving worker efficiency.

[0004] However, the aforementioned stirring device lacks anti-settling measures during stirring. Since the silica sol needs to stand after stirring to allow the air bubbles generated during stirring to dissipate, the standing time is too long, causing the silica sol to settle. To restore the uniformity of the slurry, stirring needs to be restarted, resulting in increased energy consumption and reduced processing efficiency. Utility Model Content

[0005] This invention aims to solve the problems mentioned in the background art by providing a mixing device for adhesives in investment casting.

[0006] The specific technical solution is as follows:

[0007] A mixing device for investment casting adhesive includes a mixing tank for mixing investment casting adhesive. The mixing tank has a top cover on its upper surface and a feed inlet on the upper surface of the top cover. An anti-settling component is provided at the lower center of the mixing tank. A second motor is located at the center of the upper surface of the top cover. The output shaft of the second motor passes through the lower surface of the top cover and is connected to a stirring rod. A double-headed conical block is installed in the middle section of the stirring rod. A butterfly-shaped stirring block is fixedly installed at the center of the lower surface of the stirring rod. A discharge valve pipe is connected to the lower surface of the mixing tank.

[0008] As a preferred embodiment of this utility model, both sides of the double-headed conical block are connected to a connecting rod, the connecting rod is inverted L-shaped, and a stirring ring is fixedly installed on the lower surface of the connecting rod, the stirring ring being located at the upper end of the anti-sedimentation component.

[0009] As a preferred embodiment of the present invention, the anti-sedimentation component includes a connecting plate, which is fixedly installed on both ends of the outer surface of the mixing tank. One of the two sets of connecting plates is provided with a No. 1 motor on one side, and the output shaft of the No. 1 motor is connected to a first helical gear.

[0010] As a preferred embodiment of this utility model, the lower half section of the mixing tank is provided with through holes on both sides, and a rotating rod is inserted through the through hole. The rotating rod passes through the through hole and extends to the outside of the mixing tank at both ends. Sealed bearings are installed at both ends of the rotating rod. The two sets of sealed bearings are respectively installed in the two sets of through holes provided in the mixing tank.

[0011] In a preferred embodiment of this utility model, a second helical gear is installed around the extended end of the rotating rod, one end of which is meshed with a first helical gear, and a spiral ring is fixedly installed on the middle section of the rotating rod.

[0012] As a preferred embodiment of this utility model, the other extension end of the rotating rod is rotatably connected to a rotating shaft, and the rotating shaft is rotatably installed on one side of another set of connecting plates.

[0013] This utility model has the following beneficial effects:

[0014] 1. The investment casting adhesive mixing device provided by this utility model, through the design of a double-headed conical block, a butterfly-shaped mixing block, and a mixing ring, allows the connecting rods on both sides of the double-headed conical block to rotate while stirring the silica sol in the mixing tank, thereby driving the mixing ring to rotate. This rotation process stirs the adhesive in the mixing tank, expands the stirring range, and makes the adhesive mix more evenly. The butterfly-shaped mixing block is installed at the center of the lower surface of the mixing rod to form an upward vortex at the bottom, preventing particle sedimentation. During the later settling period, the anti-settling component stirs the bottom of the silica sol in the mixing tank, avoiding long-term sedimentation from affecting the silica sol. It does not require starting a second motor to drive the mixing rod, reducing energy consumption.

[0015] 2. The investment casting adhesive mixing device provided by this utility model, through the design of a first helical gear, a second helical gear, a sealed bearing, and a spiral ring, allows the first helical gear to rotate when the liquid inside the mixing tank has been stirred and settled. The first helical gear is driven by a motor to rotate. Because the first and second helical gears mesh with each other, the rotating rod connected to the second helical gear rotates, pushing the silica sol at the bottom of the mixing tank upwards. This promotes the circulation of the silica sol within the mixing tank, reducing the possibility of particles settling at the bottom and effectively maintaining the uniformity of the silica sol. Compared to ordinary spur gears, the helical gears have a greater overlap during meshing, resulting in smoother power transmission, effectively reducing vibration and noise, and ensuring stable and continuous rotation of the rotating rod. The sealed bearing prevents external leakage, thus avoiding energy loss caused by the need for re-stirring due to sedimentation and ensuring the quality of silica sol processing. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the investment casting adhesive mixing device provided in this embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the stirring structure of the investment casting adhesive stirring device provided in this embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the internal structure of the mixing tank of the investment casting adhesive mixing device provided in this embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the anti-settling component structure of the investment casting adhesive stirring device provided in this embodiment of the utility model.

[0020] In the attached image:

[0021] 1. Mixing tank; 101. Inlet; 102. Discharge valve pipe;

[0022] 2. Top cover;

[0023] 3. Anti-sedimentation component; 301. Connecting plate; 302. Motor No. 1; 303. First helical gear; 304. Rotating rod; 305. Second helical gear; 306. Spiral ring; 307. Rotating shaft; 308. Sealed bearing;

[0024] 4. No. 2 motor; 401. Stirring rod; 402. Double-headed cone block; 403. Connecting rod; 404. Stirring ring; 405. Butterfly-shaped stirring block. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] The investment casting adhesive mixing device provided in this embodiment, such as... Figures 1-4 As shown, the apparatus includes a mixing tank 1 for mixing adhesives in investment casting. The mixing tank 1 has a top cover 2 on its upper surface, and a feed inlet 101 on the upper surface of the top cover 2. An anti-settling component 3 is located at the lower center of the interior of the mixing tank 1. A second motor 4 is located at the center of the upper surface of the top cover 2. The output shaft of the second motor 4 passes through the lower surface of the top cover 2 and is connected to a stirring rod 401. A double-headed conical block 402 is installed in the middle section of the stirring rod 401. A butterfly-shaped stirring block 405 is fixedly installed at the center of the lower surface of the stirring rod 401. A discharge valve pipe 102 connects to the lower surface of the mixing tank 1. Connecting rods 403 are connected to both sides of the double-headed conical block 402. The connecting rods 403 are inverted L-shaped, and a stirring ring 404 is fixedly installed on the lower surface of the connecting rods 403. The stirring ring 404 is located above the anti-settling component 3.

[0031] With the design of the double-headed conical block 402, the butterfly-shaped stirring block 405, and the stirring ring 404, when the silica sol in the mixing tank 1 is stirred, the connecting rods 403 on both sides of the double-headed conical block 402 also rotate, driving the stirring ring 404 to rotate. Thus, the adhesive in the mixing tank 1 is stirred during the rotation, expanding the stirring range and making the adhesive more uniformly mixed. The butterfly-shaped stirring block 405 is installed at the center of the lower surface of the stirring rod 401 to form an upward vortex at the bottom, preventing particle sedimentation. During the later settling period, the bottom of the silica sol in the mixing tank 1 is stirred by the anti-settling component 3, avoiding long-term sedimentation from affecting the silica sol. It is not necessary to start the second motor 4 to drive the stirring rod 401 to stir, reducing energy consumption.

[0032] Example 2

[0033] The investment casting adhesive mixing device provided in this embodiment, such as... Figures 3-4 As shown, the assembly includes: an anti-sedimentation component 3 comprising a connecting plate 301, which is fixedly installed at both ends of the outer surface of the mixing tank 1. One of the two sets of connecting plates 301 has a motor 302 on one side, and the output shaft of the motor 302 is connected to a first helical gear 303. The lower half of the mixing tank 1 has through holes on both sides, through which a rotating rod 304 is inserted. The rotating rod 304 passes through the through holes and extends to the outside of the mixing tank 1 at both ends. Sealed bearings 308 are installed at both ends of the rotating rod 304, and the two sets of sealed bearings 308 are respectively installed in the two sets of through holes provided in the mixing tank 1. A second helical gear 305 is installed on the periphery of the extended end of the rotating rod 304. One end of the second helical gear 305 is meshed with the first helical gear 303. A spiral ring 306 is fixedly installed in the middle section of the rotating rod 304. A rotating shaft 307 is rotatably connected to the other extended end of the rotating rod 304, and the rotating shaft 307 is rotatably installed on one side of the other set of connecting plates 301.

[0034] Through the design of the first helical gear 303, the second helical gear 305, the sealed bearing 308, and the spiral ring 306, when the liquid in the mixing tank 1 has been stirred and settled, the first helical gear 303 is driven to rotate by the first motor 302. Since the first helical gear 303 and the second helical gear 305 mesh with each other, the rotating rod 304 connected to the second helical gear 305 is driven to rotate, pushing the silica sol at the bottom of the mixing tank 1 upward, causing the silica sol to form a circulating flow in the mixing tank 1, reducing the possibility of particles in the silica sol settling at the bottom, and effectively maintaining the uniformity of the silica sol. Compared with ordinary spur gears, helical gears have a greater overlap when meshing, which can make the power transmission more stable, effectively reducing vibration and noise, and ensuring that the rotating rod 304 can rotate stably and continuously. The sealed bearing 308 can prevent external leakage, thereby avoiding the energy loss problem caused by the need for re-stirring due to sedimentation, and ensuring the processing quality of silica sol.

[0035] In summary, the investment casting adhesive mixing device provided in this embodiment has the following advantages: it eliminates the need to restart the mixing system when sedimentation occurs, thereby avoiding the energy consumption problem caused by the need to re-mix when sedimentation occurs and improving practicality.

[0036] In use, the output shaft of motor 4 drives the stirring rod 401 to rotate. The double-headed conical block 402 in the middle section of the stirring rod 401 rotates with the stirring rod 401, and the connecting rods 403 on both sides of the double-headed conical block 402 also rotate. Since the connecting rod 403 is inverted L-shaped, the stirring ring 404 fixedly installed on its lower surface will stir the adhesive in the mixing tank 1 during the rotation, expand the stirring range, and make the adhesive more uniformly mixed. Motor 302 drives the first helical gear 303 to rotate. Since the first helical gear 303 and the second helical gear 305 mesh with each other, the rotating rod 304 connected to the second helical gear 305 will rotate, pushing the silica sol at the bottom of the mixing tank 1 upward, so as to form a circulation flow in the mixing tank 1, thereby avoiding the energy loss problem caused by sedimentation and re-stirring.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A binder mixing device for investment casting, characterized in that, The mixing tank (1) is used for mixing adhesives in investment casting. The mixing tank (1) has a top cover (2) on its upper surface and a feed inlet (101) on its upper surface. An anti-settling component (3) is provided at the lower center of the mixing tank (1). A second motor (4) is provided at the center of the upper surface of the top cover (2). The output shaft of the second motor (4) passes through the lower surface of the top cover (2) and is connected to a stirring rod (401). A double-headed conical block (402) is installed in the middle section of the stirring rod (401). A butterfly-shaped stirring block (405) is fixedly installed at the center of the lower surface of the stirring rod (401). A discharge valve pipe (102) is connected to the lower surface of the mixing tank (1).

2. The investment casting binder mixing device according to claim 1, characterized in that, Both sides of the double-headed conical block (402) are connected to a connecting rod (403). The connecting rod (403) is in the shape of an inverted L. A stirring ring (404) is fixedly installed on the lower surface of the connecting rod (403). The stirring ring (404) is located at the upper end of the anti-sedimentation component (3).

3. The investment casting binder mixing device according to claim 1, characterized in that, The anti-settling component (3) includes a connecting plate (301), which is fixedly installed on both ends of the outer surface of the mixing tank (1). One of the two sets of connecting plates (301) is provided with a motor (302) on one side, and the output shaft of the motor (302) is connected to a first helical gear (303).

4. The investment casting binder mixing device according to claim 1, characterized in that, The lower half of the mixing tank (1) is provided with through holes on both sides. A rotating rod (304) is inserted into the through hole and the rotating rod (304) extends through the through hole and extends to the outside of the mixing tank (1) at both ends. Sealed bearings (308) are installed at both ends of the outer periphery of the rotating rod (304). The two sets of sealed bearings (308) are respectively installed in the two sets of through holes provided in the mixing tank (1).

5. The investment casting binder mixing device according to claim 4, characterized in that, A second helical gear (305) is installed on the periphery of the extended end of the rotating rod (304). One end of the second helical gear (305) is meshed with a first helical gear (303). A spiral ring (306) is fixedly installed on the middle section of the rotating rod (304).

6. The investment casting binder mixing device according to claim 5, characterized in that, The other extension end of the rotating rod (304) is rotatably connected to a rotating shaft (307), which is rotatably mounted on one side of another set of connecting plates (301).

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