A stirring paddle for a precision casting dip tank

Abstract

The utility model relates to a kind of stirring paddles for precision casting slurry bucket, belong to precision casting technical field, solve the problem that the uniformity of slurry of the front end of vertical side paddle and the slurry of rear end in prior art exists difference.This utility model's stirring paddle includes vertical rod (4), horizontal paddle (3), side paddle (5) and filter device (6);Among them, the top of vertical rod (4) is fixedly connected with precision casting slurry bucket;Horizontal paddle (3) is fixedly set in the bottom of vertical rod (4) in one end, and horizontal paddle (3) is inclined to set relative to horizontal plane;Side paddle (5) has multiple, and each is angularly set in the middle of vertical rod (4);Filter device (6) is angularly set on vertical rod (4), and located above side paddle (5).The utility model uses multiple angularly adjustable side paddle (5), can adjust the inclination angle of each side paddle according to actual situation, to make that slurry of side paddle front and rear end is stirred evenly.

Description

Technical Field

[0001] This utility model relates to the field of precision casting technology, and in particular to a stirring paddle for a precision casting slurry tank. Background Technology

[0002] The precision casting mold shell is a hard shell formed by repeatedly dipping the mold in slurry, applying sand, and drying. The slurry used for dipping is a mixture of silica sol and refractory powder, exhibiting non-Newtonian fluid dynamics characteristics, requiring continuous stirring during fabrication and placement. Since the uniformity of slurry mixing directly affects the shell quality, the structure of the stirring paddle is crucial. During use, some suspended matter will float on the surface of the slurry in the slurry tank, requiring regular cleaning to ensure that no other materials are mixed into the slurry during shell casting, thus maintaining consistent mold shell quality.

[0003] Existing technologies use L-shaped agitators for mixing, achieved by welding and fixing a vertical side impeller and a bottom horizontal impeller. However, due to the special characteristics of the slurry, there is a tendency for differences in slurry uniformity at the front of the vertical side impeller and in the area behind the impeller. Welding and fixing the side impeller to the bottom horizontal impeller also makes it difficult to adjust the mixing angle of the side impeller according to the actual process. At the same time, the problem of cleaning suspended solids in the slurry is not solved. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a stirring paddle for a precision casting slurry tank to solve the problem of differences in the uniformity of the slurry at the front and rear ends of the vertical side paddle.

[0005] On one hand, this utility model provides a stirring paddle for a precision casting slurry tank, including a vertical rod, a horizontal paddle, side paddles, and a filtering device; wherein, the top of the vertical rod is fixedly connected to the precision casting slurry tank; one end of the horizontal paddle is fixedly disposed at the bottom of the vertical rod, the horizontal paddle and the vertical rod form an L-shaped structure, and the horizontal paddle is inclined relative to the horizontal plane; there are multiple side paddles, and each side paddle is angularly adjustable and disposed in the middle of the vertical rod; the filtering device is angularly adjustable and disposed on the vertical rod, and is located above the side paddles.

[0006] Furthermore, the side propeller includes a first circular tube and a blade that are fixedly connected.

[0007] Furthermore, the first circular tube is sleeved on the vertical rod and is able to rotate relative to the vertical rod.

[0008] Furthermore, the first circular tube is provided with a threaded hole, the blade is fixedly connected to the first circular tube, and the blade is arranged opposite to the threaded hole.

[0009] Furthermore, the filtering device includes a second circular tube and a filter screen.

[0010] Furthermore, the second circular tube is rotatably fitted onto the vertical rod.

[0011] Furthermore, a fixing rod extends radially outward from the top of the second circular tube, and the top of the filter screen is fixedly connected to the fixing rod.

[0012] Furthermore, the filter screen can rotate relative to the fixing rod between a locked position and an unlocked position. When the filter screen rotates to the locked position, the filter screen is in a vertical state; when the filter screen rotates to the unlocked position, the filter screen can be detached from the fixing rod.

[0013] Furthermore, the filter screen is a rigid plastic mesh or a stainless steel mesh.

[0014] Furthermore, the vertical rod is positioned close to the inner wall of the precision casting slurry tank, and the free end of the horizontal paddle extends toward and beyond the center of the precision casting slurry tank.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] (1) The side paddle of this utility model adopts a structure with multiple adjustable angles. Each side paddle is installed on a vertical rod, and the tilt angle of each side paddle can be adjusted according to the actual situation so that the slurry at the front and rear ends of the side paddle is evenly mixed.

[0017] (2) This utility model has a filter screen installed on the upper part of the side paddle to filter and collect suspended impurities on the upper part of the slurry. The slurry is rotated by the rotation of the inner barrel of the slurry tank, and the slurry gathers to the edge under the action of centrifugal force, thereby achieving the purpose of timely collection.

[0018] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0019] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0020] Figure 1 A schematic diagram of a structure with an agitator installed inside the slurry tank;

[0021] Figure 2 This is a schematic diagram of the structure of the stirring paddle of this utility model;

[0022] Figure 3 This is a top view of the stirring paddle of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-section of a segmented side propeller;

[0024] Figure 5 This is a schematic diagram of the structure of the stirring paddle filtration device of this utility model.

[0025] Figure label:

[0026] 1-Dipping tank; 2-Inner tank; 3-Horizontal paddle; 4-Vertical rod; 5-Side paddle; 6-Filtering device; 7-Paddle blade; 8-First circular tube; 9-Filter screen; 10-Second circular tube. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0028] Example 1

[0029] A specific embodiment of this utility model is as follows: Figure 1 , Figure 2 and Figure 3 As shown, a stirring paddle for a precision casting slurry dipping tank is disclosed. This stirring paddle is disposed within the inner tank 2 of the precision casting slurry dipping tank 1, as... Figure 1 As shown. The inner barrel 2 can rotate about its own axis relative to the slurry dipping barrel 1, and the stirring paddle is fixed relative to the slurry dipping barrel 1.

[0030] See Figure 1 , Figure 2 , Figure 3 The stirring paddle of this utility model includes a vertical rod 4, a horizontal paddle 3, a side paddle 5, and a filter device 6, and is an L-shaped stirring paddle.

[0031] The top of the vertical rod 4 is fixedly connected to the slurry-dipping tank 1, and the bottom is fixedly connected to one end of the horizontal paddle 3, forming an L-shaped structure. The vertical rod 4 is preferably cylindrical, but it can also be a polygonal prism. The vertical rod 4 is located close to the inner wall of the precision casting slurry-dipping tank, on one side inside the inner tank 2.

[0032] The horizontal blade 3 is plate-shaped and is inclined relative to the horizontal plane to improve stirring ability. In a preferred embodiment, the free end of the horizontal blade 3 extends toward and beyond the axis of the inner barrel 2.

[0033] The side impeller 5 is angle-adjustably positioned at the center of the vertical rod 4 to enhance the stirring capacity of the impeller of this invention. The side impeller 5 is a modular connection, facilitating disassembly and adjustment.

[0034] See Figure 2 , Figure 4 The side propeller 5 includes a blade 7 and a first circular tube 8. The blade 7 is a sheet-like structure that extends vertically and is fixedly connected to the outer circumferential surface of the first circular tube 8. Specifically, the centerline of the blade 7 is fixedly connected to the outer circumferential surface of the first circular tube 8, and the blade 7 is tangent to the outer circumferential surface of the first circular tube 8.

[0035] The first circular tube 8 can be fitted onto the vertical rod 4, and the first circular tube 8 is provided with a threaded hole, which is positioned opposite to the blade 7. The first circular tube 8 can rotate around the vertical rod 4 to adjust the tilt angle of the blade 7 and achieve uniform stirring. After the rotation angle of the side blade 5 is adjusted, a screw is passed through the threaded hole to fix the side blade 5 onto the vertical rod 4.

[0036] In the preferred embodiment, multiple side propellers 5 are provided and sequentially mounted on the vertical rod 4. The direction of the blade 7 of each side propeller 5 can be adjusted independently.

[0037] The filter device 6 is mounted on the vertical rod 4 and located above the side paddle 5. The filter device 6 includes a filter screen 9 and a second circular tube 10. A fixing rod extends radially outward from the top of the second circular tube 10, and the top of the filter screen 9 is fixedly connected to the fixing rod, preferably by bolts, for easy disassembly and cleaning.

[0038] Furthermore, the filter screen 9 is positioned on the side of the vertical rod 4 near the inner circumferential wall of the inner barrel 2, and the edge of the filter screen 9 is in contact with the inner circumferential wall of the inner barrel 2. As the rotation of the inner barrel 2 causes the slurry to rotate, impurities gather towards the edge under the action of centrifugal force. The filter screen 9 achieves better collection of impurities by contacting the inner circumferential wall of the inner barrel 2.

[0039] The second round tube 10 is fitted onto the vertical rod 4, and after adjusting the rotation angle, it is tightened with bolts.

[0040] The filter device 6 is a detachable mesh structure. The filter screen 9 is a rigid plastic mesh or stainless steel mesh, which is easy to clean. It is installed on the upper part of the vertical rod 4 and collects impurities as the slurry flows.

[0041] The precision casting slurry mixing paddle of this invention adjusts the tilt angle of the vertical side paddle 5 to meet the requirements of slurry mixing uniformity, and adds a filter device 6 at the top to filter and collect impurities suspended in the slurry in a timely manner, thus ensuring slurry quality.

[0042] Example 2

[0043] This embodiment 2 provides a stirring paddle for a precision casting slurry tank. Based on embodiment 1, the structure of the filtering device 6 of the stirring paddle in embodiment 2 is different from that in embodiment 1, specifically:

[0044] A fixing rod extends radially outward from the top of the second circular tube 10. The end of the fixing rod has an axially extending hole, and a snap-fit ​​structure is provided on the inner wall of the hole. Preferably, it consists of two arc-shaped first protrusions.

[0045] Correspondingly, a cylinder is provided at the top of the filter screen 9, and a snap-fit ​​structure is also provided at the end of the cylinder, preferably two arc-shaped second protrusions. The cylinder is suitable for insertion into the hole at the end of the fixing rod. After rotating a certain angle, the first and second protrusions engage with each other, locking the filter screen 9 securely.

[0046] The filter screen 9 is rotatable between a locked position and an unlocked position. When the filter screen 9 is rotated to the locked position, the filter screen 9 is in a vertical position; when the filter screen 9 is rotated to the unlocked position (preferably the horizontal position), the filter screen 9 can be detached from the fixing rod.

[0047] Furthermore, the filter screen 9 is an arc-shaped or spherical screen, which can collect impurities in the concave surface of the filter screen 9, and the impurities can be removed from the slurry tank by rotating the filter screen 9 to the unlocked position. After that, the filter screen 9 can be replaced or cleaned to continue the operation.

[0048] Compared with existing technologies, the stirring paddle for the precision casting slurry tank provided in this embodiment achieves uniform mixing of the slurry, ensuring consistent slurry properties in all areas of the tank and guaranteeing consistent shell quality. Simultaneously, by filtering and collecting impurities from the tank, the slurry remains clean, extending its service life, improving shell quality, and reducing costs.

[0049] 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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stirring paddle for a precision casting slurry tank, characterized in that, The system includes a vertical rod (4), a horizontal paddle (3), a side paddle (5), and a filter device (6); wherein, the top of the vertical rod (4) is fixedly connected to the precision casting slurry tank; one end of the horizontal paddle (3) is fixedly disposed at the bottom of the vertical rod (4), the horizontal paddle (3) and the vertical rod (4) form an L-shaped structure, and the horizontal paddle (3) is inclined relative to the horizontal plane; there are multiple side paddles (5), and each side paddle (5) is angularly adjustable and disposed in the middle of the vertical rod (4); the filter device (6) is angularly adjustable and disposed on the vertical rod (4), and is located above the side paddle (5).

2. The stirring paddle for the precision casting slurry tank according to claim 1, characterized in that, The side propeller (5) includes a first circular tube (8) and a blade (7) that are fixedly connected.

3. The stirring paddle for the precision casting slurry tank according to claim 2, characterized in that, The first circular tube (8) is sleeved on the vertical rod (4) and can rotate relative to the vertical rod (4).

4. The stirring paddle for the precision casting slurry tank according to claim 3, characterized in that, The first round tube (8) is provided with a threaded hole, the blade (7) is fixedly connected to the first round tube (8), and the blade (7) is arranged opposite to the threaded hole.

5. The stirring paddle for the precision casting slurry tank according to claim 1, characterized in that, The filtering device (6) includes a second circular tube (10) and a filter screen (9).

6. The stirring paddle for the precision casting slurry tank according to claim 5, characterized in that, The second round tube (10) is rotatably fitted onto the vertical rod (4).

7. The stirring paddle for a precision casting slurry tank according to claim 5 or 6, characterized in that, A fixed rod extends radially outward from the top of the second round tube (10), and the top of the filter screen (9) is connected to the fixed rod.

8. The stirring paddle for the precision casting slurry tank according to claim 7, characterized in that, The filter screen (9) can rotate relative to the fixing rod between a locked position and an unlocked position. When the filter screen (9) rotates to the locked position, the filter screen (9) is in a vertical state. When the filter screen (9) rotates to the unlocked position, the filter screen (9) can be removed from the fixing rod.

9. The stirring paddle for a precision casting slurry tank according to claim 8, characterized in that, The filter screen (9) is a rigid plastic mesh or a stainless steel mesh.

10. The stirring paddle for a precision casting slurry tank according to claim 1, characterized in that, The vertical rod (4) is positioned close to the inner wall of the precision casting slurry barrel, and the free end of the horizontal paddle (3) extends toward and beyond the center of the precision casting slurry barrel.

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