Slurry dipping machine for precision casting shell manufacturing

Abstract

The utility model relates to a slurry dipping machine for a precision casting shell. The slurry dipping machine comprises a slurry dipping barrel, a stirring bin is arranged on the outer side of the slurry dipping barrel, a stirring cavity is formed in the stirring bin, a stirring impeller is arranged in the stirring cavity, and a stirring driving device for driving the stirring impeller to rotate is arranged on the outer side of the stirring bin. The stirring bin is arranged on one side wall of the slurry dipping barrel, and the stirring cavity is communicated with an inner cavity of the slurry dipping barrel. According to the utility model, the stirring bin communicated with the inner cavity of the slurry dipping barrel is arranged on the outer side of the slurry dipping barrel, so that slurry in the slurry dipping barrel can enter the stirring cavity, and when the stirring driving device drives the stirring impeller to rotate, the stirring impeller can stir the slurry, so that the slurry in the slurry dipping barrel is uniformly stirred. According to the utility model, the stirring impeller is externally arranged, so that on one hand, the slurry dipping operation is not influenced while slurry is stirred, and on the other hand, the stirring of the slurry does not need to drive the whole slurry dipping barrel to rotate, thereby greatly reducing the power and energy consumption of the stirring driving device.

Description

Technical Field

[0001] The utility model relates to the technical field of precision casting, in particular to a slurry dipping machine for precision casting shell making. Background Art

[0002] Precision casting is also called lost wax casting. Its products are precise, complex, and close to the final shape of the parts. They can be used directly without or with very little processing. It is an advanced process for near-net-shape forming. The process is as follows: choose suitable investment material (such as paraffin) to make investment mold; repeat the process of applying refractory coating and sprinkling refractory sand on the investment mold, harden the shell and dry it; then melt the internal investment mold to obtain the cavity; bake the shell to obtain sufficient strength, burn the residual investment mold material, and pour the required metal material; solidify and cool, remove the sand after shelling, so as to obtain a high-precision finished product.

[0003] Dipping is an important step in the mold shell preparation process. The slurry dipping machine is a special equipment used for dipping the mold shell. Traditional slurry dipping machines generally adopt the form of "fixed paddle + rotating barrel", and use a motor to drive the entire slurry barrel to rotate. The slurry barrel is heavy (2 tons or even more), so the power of the motor is required to be very large (generally 1.5KW), the power consumption is high, and the load requirements on the motor and bearings are high, which is prone to failure.

[0004] In view of the above problems, the applicant has proposed a solution. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a slurry dipping machine for precision casting shells, and the technical solution adopted is:

[0006] A slurry dipping machine for precision casting shells includes a slurry dipping barrel, a stirring bin is provided on the outside of the slurry dipping barrel, a stirring chamber is provided in the stirring bin, a stirring impeller is provided in the stirring chamber, and a stirring driving device for driving the stirring impeller to rotate is provided on the outside of the stirring bin; the stirring bin is provided on a side wall of the slurry dipping barrel and the stirring chamber is connected to the inner cavity of the slurry dipping barrel.

[0007] According to a slurry dipping machine for precision casting shell making according to an embodiment of the utility model, the stirring chamber is provided with a stirring port on the side thereof facing the slurry dipping barrel, a notch is provided on the barrel wall of the slurry dipping barrel, the stirring chamber is connected to the outer side of the slurry dipping barrel and the stirring port coincides with the notch.

[0008] According to a slurry dipping machine for precision casting shell making according to an embodiment of the utility model, the stirring drive device includes a driving motor and a driving shaft, the driving shaft is connected to the stirring impeller, and the driving motor and the driving shaft are connected through a driving transmission.

[0009] According to a slurry dipping machine for precision casting shell making according to an embodiment of the utility model, the driving shaft is further connected to a manual turntable at its outer end away from the stirring impeller.

[0010] According to an embodiment of the utility model, a slurry dipping machine for precision casting shell making is provided in the slurry dipping barrel. A barrel wall sweeping device is provided in the slurry dipping barrel. A rotary driving system is provided on the slurry dipping barrel. The rotary driving system can drive the barrel wall sweeping device to rotate along the length direction of the inner arc surface curve of the barrel wall to sweep down the slurry adhered to the barrel wall.

[0011] According to a slurry dipping machine for precision casting shell making according to an embodiment of the utility model, the barrel wall sweeping device includes a plurality of barrel wall scraping rods, which are evenly distributed and vertically arranged in the slurry dipping barrel, and a scraping blade is provided on the barrel wall scraping rods, and the scraping blade is attached to the inner wall of the slurry dipping barrel.

[0012] According to a slurry dipping machine for precision casting shell making according to an embodiment of the utility model, the slurry scraping blade can move on the slurry scraping rod of the barrel wall to adjust the inclination angle of the slurry scraping blade to the inner wall of the slurry dipping barrel.

[0013] According to an embodiment of the utility model, a slurry dipping machine for precision casting shell making, the rotary driving system includes a rotary driving device and a rotating ring arranged on the top surface of the slurry dipping barrel, the top ends of the multiple barrel wall scraping rods are respectively fixed on the rotating ring, and the rotary driving device can drive the rotating ring to perform circular motion or arc motion on the top surface of the slurry dipping barrel to drive the barrel wall scraping rods to move in an arc.

[0014] According to a slurry dipping machine for precision casting shell making according to an embodiment of the utility model, the rotary drive device includes an annular or semi-annular rotating rack arranged on a rotating ring, and a motor frame arranged on the side of the slurry dipping barrel, and a rotating motor and active teeth are provided on the motor frame, and the active teeth are meshed and linked with the rotating rack.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, by providing a stirring chamber connected to the inner cavity of the slurry dipping barrel on the outside, the slurry in the slurry dipping barrel can enter the stirring chamber, and when the stirring driving device drives the stirring impeller to rotate, the stirring impeller can stir the slurry and stir the slurry in the slurry dipping barrel evenly. In the utility model, the stirring impeller is externally arranged, on the one hand, while stirring the slurry, the slurry dipping operation is not affected, and on the other hand, the stirring of the slurry does not need to drive the entire slurry dipping barrel to rotate, which greatly reduces the power and energy consumption of the stirring driving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0019] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 3 The structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 4 The structure of the embodiment of the utility model is shown in FIG. Figure 3 .

[0022] Description of main component symbols:

[0023] 10. Slurry dipping bucket; 20. Mixing chamber; 30. Mixing impeller; 40. Driving motor; 50. Driving shaft; 60. Manual turntable; 70. Rotating ring; 80. Rotating rack; 90. Slurry scraping rod for barrel wall; 100. Rotating motor; 110. Active gear. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0025] The orientation shown in the drawings cannot be understood as limiting the specific protection scope of the present utility model, and is only provided for reference and understanding of the preferred embodiments. The product components shown in the drawings may be changed in position, increased in number, or simplified in structure.

[0026] The "connection" described in the specification and the mutual "connection" relationship of the components shown in the drawings can be understood as a fixed connection or a detachable connection or an integral connection; it can be a direct connection or a connection through an intermediate medium. Ordinary technicians in this field can understand the connection relationship according to the specific circumstances and can derive different implementation methods in an appropriate manner such as screwing, riveting, welding, clamping or embedding.

[0027] With respect to the directional words such as up, down, left, right, top, bottom, etc. described in the specification and the directions shown in the drawings, the components may be in direct contact or in contact through other features between them; for example, "above" may mean directly above or obliquely above, or it simply means higher than other objects; other directions may be understood by analogy.

[0028] The materials for making parts with solid shapes shown in the specification and the drawings may be metal materials, non-metal materials or other synthetic materials; the mechanical processing techniques used for parts with solid shapes may be stamping, forging, casting, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc.; ordinary technicians in this field can adaptively select or combine them according to different processing conditions, costs, and precisions, but are not limited to the above-mentioned materials and manufacturing processes.

[0029] The utility model is a slurry dipping machine for precision casting shell making, such as Figure 1 , 2 As shown in , 3 and 4, it includes a slurry dipping barrel 10, a stirring chamber 20 is provided on the outer side of the slurry dipping barrel 10, a stirring chamber is provided in the stirring chamber 20, a stirring impeller 30 is provided in the stirring chamber, and a stirring driving device for driving the stirring impeller 30 to rotate is provided on the outer side of the stirring chamber 20; the stirring chamber 20 is provided on a side wall of the slurry dipping barrel 10 and the stirring chamber is connected to the inner cavity of the slurry dipping barrel 10, specifically, the stirring chamber 20 is provided with a stirring port on the side thereof facing the slurry dipping barrel 10, a notch is opened on the barrel wall of the slurry dipping barrel 10, the stirring chamber 20 is externally connected to the outer side of the slurry dipping barrel 10 and the stirring port coincides with the notch.

[0030] In the present invention, by providing a stirring chamber 20 connected to the inner cavity of the slurry dipping barrel 10 on the outside thereof, the slurry in the slurry dipping barrel 10 can enter the stirring chamber, and when the stirring driving device drives the stirring impeller 30 to rotate, the stirring impeller 30 can stir the slurry and stir the slurry in the slurry dipping barrel 10 evenly. In the present invention, the stirring impeller 30 is externally arranged, which, on the one hand, does not affect the slurry dipping operation while stirring the slurry, and on the other hand, the stirring of the slurry does not need to drive the entire slurry dipping barrel 10 to rotate, which greatly reduces the power and energy consumption of the stirring driving device.

[0031] Further, in some embodiments of the present utility model application, such as Figure 1 , 2 As shown in Figures 3 and 4, the stirring driving device includes a driving motor 40 and a driving shaft 50. The driving shaft 50 is connected to the stirring impeller 30. The driving motor 40 and the driving shaft 50 are connected via a driving transmission. The driving motor 40 drives the driving shaft 50 to rotate through the driving transmission, thereby driving the stirring impeller 30 to rotate.

[0032] Further, in some embodiments of the present utility model application, such as Figure 1 , 2 As shown, the drive shaft 50 is also connected to a manual turntable 60 at its outer end away from the stirring impeller 30. When a power outage or a drive motor failure occurs, the manual turntable 60 can drive the drive shaft 50 to rotate, thereby driving the stirring impeller 30 to rotate.

[0033] In order to prevent the slurry from adhering to the inner wall of the slurry bucket 10 and then condensing on the inner wall, further, in some embodiments of the present utility model application, as Figure 1 , 2 As shown in Figures 3 and 4, a barrel wall sweeping device is provided in the slurry dipping barrel 10, and a rotary driving system is provided on the slurry dipping barrel 10. The rotary driving system can drive the barrel wall sweeping device to rotate along the length direction of the inner arc surface curve of the barrel wall to sweep down the slurry adhering to the barrel wall. Specifically, the barrel wall sweeping device includes a plurality of barrel wall scraping rods 90, which are evenly distributed and vertically arranged in the slurry dipping barrel 10. A scraping blade is provided on the barrel wall scraping rod 90, and the scraping blade is attached to the inner wall of the slurry dipping barrel 10. When in use, the rotary driving system drives the scraping rod to rotate along the length direction of the inner arc surface curve of the barrel wall, and the scraping blade follows the rotation, and at the same time scrapes and sweeps along the inner wall to sweep down the slurry adhering to the inner wall of the slurry dipping barrel 10.

[0034] In order to ensure that the scraper blade can stick to the inner wall of the slurry bucket 10, further, in some embodiments of the utility model application, the scraper blade can move on the bucket wall scraper rod 90 to adjust the inclination angle of the scraper blade against the inner wall of the slurry bucket 10.

[0035] Further, in some embodiments of the present utility model application, such as Figure 1 , 2 As described in , 3, and 4, the rotary driving system includes a rotary driving device and a rotary ring 70 arranged on the top surface of the slurry dipping barrel 10, and the top ends of the multiple barrel wall scraping rods 90 are respectively fixed on the rotary ring 70. The rotary driving device can drive the rotary ring 70 to make an arc motion on the top surface of the slurry dipping barrel 10 to drive the barrel wall scraping rods 90 to move in an arc.

[0036] The rotary drive device includes a semi-circular rotary rack 80 disposed on the rotary ring 70, and a motor frame disposed on the side of the slurry dipping barrel 10, on which a rotary motor 100 and an active gear 110 are disposed, and the active gear 110 is meshed and linked with the rotary rack 80. In the embodiment, the rotation of the rotary ring 70 is controlled by the meshing of teeth. Specifically, the rotary motor 100 drives the active gear 110 to rotate, and since the active gear 110 is meshed with the rotary rack 80, the rotary ring 70 is driven to rotate.

[0037] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A slurry dipping machine for precision casting shell, characterized in that: The invention comprises a slurry dipping barrel (10), a stirring chamber (20) is arranged outside the slurry dipping barrel (10), a stirring chamber is arranged inside the stirring chamber (20), a stirring impeller (30) is arranged inside the stirring chamber, and a stirring driving device for driving the stirring impeller (30) to rotate is arranged outside the stirring chamber (20); the stirring chamber (20) is arranged on a side wall of the slurry dipping barrel (10), and the stirring chamber is connected to the inner chamber of the slurry dipping barrel (10).

2. A slurry dipping machine for precision casting shell according to claim 1, characterized in that: The stirring chamber (20) is provided with a stirring port on a side thereof facing the slurry dipping barrel (10), a notch is provided on the barrel wall of the slurry dipping barrel (10), the stirring chamber (20) is externally connected to the outer side of the slurry dipping barrel (10) and the stirring port is matched with the notch.

3. The slurry dipping machine for precision casting shell according to claim 1, characterized in that: The stirring drive device comprises a driving motor (40) and a driving shaft (50); the driving shaft (50) is connected to the stirring impeller (30); and the driving motor (40) and the driving shaft (50) are connected via a driving transmission.

4. A slurry dipping machine for precision casting shell according to claim 3, characterized in that: The driving shaft (50) is also connected to a manual turntable (60) at its outer end away from the stirring impeller (30).

5. The slurry dipping machine for precision casting shell according to claim 1, characterized in that: A barrel wall sweeping device is provided in the slurry dipping barrel (10), and a rotary driving system is provided on the slurry dipping barrel (10). The rotary driving system can drive the barrel wall sweeping device to rotate along the length direction of the inner arc surface curve of the barrel wall to sweep down the slurry adhered to the barrel wall.

6. A slurry dipping machine for precision casting shell according to claim 5, characterized in that: The barrel wall hanging sweeping device comprises a plurality of barrel wall scraping rods (90), which are evenly distributed and vertically arranged in the slurry dipping barrel (10), and a scraping blade is arranged on the barrel wall scraping rods (90), and the scraping blade is attached to the inner wall of the slurry dipping barrel (10).

7. A slurry dipping machine for precision casting shell according to claim 6, characterized in that: The scraping blade can move on the barrel wall scraping rod (90) to form an inclination angle such that the scraping blade is attached to the inner wall of the barrel wall scraping rod (90).

8. The slurry dipping machine for precision casting shell according to claim 6, characterized in that: The rotary driving system comprises a rotary driving device and a rotary ring (70) arranged on the top surface of the slurry dipping barrel (10), the top ends of the plurality of barrel wall scraping rods (90) are respectively fixed on the rotary ring (70), and the rotary driving device can drive the rotary ring (70) to perform circular motion or arc motion on the top surface of the slurry dipping barrel (10) to drive the barrel wall scraping rods (90) to perform arc motion.

9. A slurry dipping machine for precision casting shell production according to claim 8, characterized in that: The rotary drive device comprises an annular or semi-annular rotary rack (80) arranged on a rotary ring (70), and a motor frame arranged on the side of the slurry dipping barrel (10), on which a rotary motor (100) and a driving tooth (110) are arranged, and the driving tooth is meshed and linked with the rotary rack (80).

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