Material stirring machine for stirring investment coating

Abstract

The utility model discloses a stirring machine for stirring an investment coating, and relates to the technical field of investment casting. The stirring machine for stirring the investment coating comprises a stirring barrel, a stirring assembly is arranged in the stirring barrel, the stirring barrel is used for uniformly feeding through a feeding assembly, the feeding assembly comprises a feeding barrel, the feeding barrel rotates at the upper end of the stirring barrel at a constant speed, and the discharging end of the feeding barrel extends downwards into the stirring barrel. The stirring assembly comprises a stirring shaft and stirring blades, a large number of through holes are distributed in the stirring blades, and the calibers of the two ends of each through hole are different. In order to overcome the defect that materials cannot be uniformly distributed due to the fact that the traditional mixing machine usually adopts manual centralized feeding, the uniform distribution of the materials is realized through the rotation of the feeding cylinder, the centralized feeding is avoided, and the uniform distribution of the materials is realized through the design that the calibers of the through holes in the mixing blades are different and the directions of the through holes in different areas are opposite. The mixing and dispersion of materials are effectively enhanced, the stirring efficiency is improved, the stirring time is shortened, and the production efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to investment casting technical field, concretely is a kind of mixing machine for investment coating stirring. BACKGROUND

[0002] Investment coating includes silica sol, water and quartz sand and other materials, when stirring, the above-mentioned material needs to be added in mixing machine in turn, and the traditional mixing machine usually adopts manual centralized feeding at the upper end of material cylinder, which can cause uneven distribution of materials in the cylinder, and can easily concentrate in a certain area, affect the stirring effect, cause coating quality instability, and in order to achieve better mixing effect, it is necessary to prolong the stirring time, thereby reducing the production efficiency.

[0003] Therefore, in order to solve the defect that the traditional mixing machine usually adopts manual centralized feeding to cause uneven distribution of materials, it is necessary to provide a mixing machine for investment coating stirring. SUMMARY

[0004] The utility model discloses a kind of mixing machines for investment coating stirring, and the uniform distribution of material is realized by the rotation of feeding cylinder, avoid centralized feeding, by the design that the aperture of through hole on stirring blade is different and the direction of through hole in different regions is opposite, effectively enhance the mixing and dispersion of material, improve stirring efficiency, reduce stirring time, and then improve production efficiency.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of mixing machine for investment coating stirring, including stirring cylinder, stirring assembly is equipped in stirring cylinder, the stirring cylinder is uniformly fed by feeding assembly, feeding assembly includes feeding cylinder, feeding cylinder makes uniform rotation motion on the upper end of stirring cylinder, and its discharge end extends to stirring cylinder downwards;

[0007] The stirring assembly includes stirring shaft and stirring blade, and the stirring blade is covered with through hole, and the aperture of through hole at both ends is different.

[0008] As preferred, the feeding assembly further includes a fixed frame and a movable frame, the fixed frame is welded to the upper end of the stirring cylinder, and a motor is fixedly installed on the frame body, and the output end of the motor is fixedly connected with a rotating shaft.

[0009] As preferred, one end of the movable frame is fixedly connected with the rotating shaft, and the other end is slidably connected with the stirring cylinder through a sliding groove.

[0010] As preferred, the feeding cylinder is assembled on the movable frame.

[0011] As preferred, the bottom of the stirring cylinder is fixedly installed with a motor, and the output end of the motor is fixedly connected with the stirring shaft.

[0012] As preferred, the stirring blade is trapezoidal, the outer end is inclined and attached to the inner wall of the stirring cylinder, and the bottom is fixedly installed with a scraper.

[0013] As preferred, the port diameter of the flared end of the through hole is set to 5 cm, and the port diameter of the constricted end is set to 3 cm.

[0014] As preferred, the stirring blade is divided into two regions by a fixed rod, and the directions of the flared end and the constricted end of the through hole in different regions are opposite.

[0015] As preferred, a discharge port is arranged at the lower end of the stirring cylinder, and a valve body is installed outside the discharge port.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The material mixing machine for melting mold coating stirring can realize uniform rotation by driving the feeding cylinder through the movable frame, ensure that the materials are uniformly distributed in the stirring cylinder, avoid the uneven distribution of materials caused by traditional manual concentrated feeding, and effectively improve the stirring effect and the stability of coating quality.

[0018] 2. The material mixing machine for melting mold coating stirring is provided with a large number of through holes with different port diameters on the stirring blade, and the directions of the through holes in different regions are opposite. This design can effectively enhance the mixing and dispersion of materials during stirring, improve the stirring efficiency, reduce the stirring time, and thus improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the material mixing machine for melting mold coating stirring of the present application is shown in the figure Figure One ;

[0020] Figure 2 The structure of the material mixing machine for melting mold coating stirring of the present application is shown in the figure Figure Two ;

[0021] Figure 3 The structure of the material mixing machine for melting mold coating stirring of the present application is shown in the figure Figure Three ;

[0022] Figure 4 The structure of the material mixing machine for melting mold coating stirring of the present application is shown in the figure Figure Four .

[0023] In the figure: 1, stirring cylinder; 11, discharge port; 12, chute; 2, feeding assembly; 21, fixed frame; 22, motor one; 23, rotating shaft; 24, movable frame; 25, feeding cylinder; 3, stirring assembly; 31, motor two; 32, stirring shaft; 33, stirring blade; 34, fixed rod; 35, through hole; 36, scraper. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-2 A kind of stir for melting mould coating mixes with stirrer, including stirring cylinder 1, stirring assembly 3 is provided in stirring cylinder 1, stirring cylinder 1 is uniformly fed by feeding assembly 2, feeding assembly 2 includes feeding cylinder 25, feeding cylinder 25 makes uniform rotation motion on the upper end of stirring cylinder 1, and its discharge end extends to stirring cylinder 1 inside downward.

[0025] Wherein, stirring cylinder 1 is made of metal material, such as carbon steel or stainless steel, to improve the corrosion resistance and service life of stirring cylinder 1, in addition, the inner surface of stirring cylinder 1 should be smooth without burr, to reduce the adhesion and residual of coating in the stirring process;

[0026] Feeding cylinder 25 is made of glass material, which is convenient for staff to observe the feeding situation of materials to prevent blockage, and the uniform rotation motion of feeding cylinder 25 can make the coating raw materials enter stirring cylinder 1 at a uniform speed, avoiding the problem of uneven stirring caused by concentrated feeding, and at the same time, the discharge end of feeding cylinder 25 extends to stirring cylinder 1 inside downward, which can make the raw materials directly fall into the stirring area, avoiding dust.

[0027] Please refer to Figures 3-4 Stirring assembly 3 includes stirring shaft 32 and stirring blade 33, and a large number of through holes 35 are distributed on stirring blade 33, and the diameters of the two ends of through holes 35 are different.

[0028] Wherein, the number of stirring blade 33 is four, and is arranged in annular array with stirring shaft 32 as the center, and the connecting part of stirring blade 33 and stirring shaft 32 can adopt welding, bolt connection and other ways to ensure its stability in high-speed rotation;

[0029] A large number of through holes 35 are distributed on stirring blade 33, and the design of these through holes 35 is of great significance, and the diameters of the two ends are different, which can make the coating form a complex flow path in the stirring process, increase the shearing and mixing effect of the coating, and improve the stirring efficiency and uniformity.

[0030] Please refer to Figure 2 Feeding assembly 2 also includes fixed frame 21 and movable frame 24, fixed frame 21 is welded on the upper end of stirring cylinder 1, and motor one 22 is fixedly installed on the frame body of fixed frame 21, and the output end of motor one 22 is fixedly connected with rotating shaft 23.

[0031] Wherein, fixed frame 21 is an important supporting structure of feeding assembly 2, which provides a stable installation foundation for motor one 22, and enough space and interface should be reserved on its surface to facilitate the installation, wiring and maintenance of motor one 22;

[0032] Rotating shaft 23 and movable frame 24 play a role in connection and transmission of motion in feeding assembly 2, drive feeding cylinder 25 to make uniform rotation motion, and ensure that the coating raw materials can enter stirring cylinder 1 uniformly.

[0033] Please refer to Figures 1-2 One end of the movable frame 24 is fixedly connected with the rotating shaft 23, and the other end is slidably connected with the stirring drum 1 through the sliding groove 12.

[0034] The sliding groove 12 is arranged at the barrel opening of the stirring drum 1, which provides guidance and restriction for the movement of the movable frame 24, ensures that the movable frame 24 can maintain a stable position and direction during movement, and ensures that the feeding barrel 25 can accurately feed the paint raw materials into the stirring drum 1.

[0035] Please refer to Figure 2 The feeding barrel 25 is assembled on the movable frame 24.

[0036] The feeding barrel 25 can be assembled on the movable frame 24 in the form of welding, bolts and buckles, etc.

[0037] When the feeding barrel 25 and the movable frame 24 need to form a whole and do not need to be disassembled, welding connection can be adopted, which has the advantages of firm connection and can withstand larger force and torque; the disadvantage is that it is not convenient to disassemble and maintain, and it is difficult to adjust and replace once the welding is completed.

[0038] When it is necessary to facilitate disassembly and adjustment, bolt connection can be adopted, that is, corresponding bolt holes are arranged on the movable frame 24, and the feeding barrel 25 is fixed on the movable frame 24 through bolts, which has the advantages of convenient installation and disassembly, and is convenient for maintenance and replacement of parts; the disadvantage is that the connection strength is relatively low compared with welding, and it may loosen under high-speed rotation or large vibration.

[0039] For some small or light feeding barrels 25, buckle connection can be adopted, that is, a clamping groove or buckle is arranged on the movable frame 24, and the feeding barrel 25 is fixed on the movable frame 24 through the buckle, which has the advantages of convenient and fast installation without tools; the disadvantage is that the connection strength is low, and it is suitable for occasions with small load.

[0040] Please refer to Figures 2-3 The bottom of the stirring drum 1 is fixedly installed with a motor 31, and the output end of the motor 31 is fixedly connected with a stirring shaft 32.

[0041] Please refer to Figures 3-4 The stirring blade 33 is trapezoidal, the outer end is inclined and attached to the inner wall of the stirring drum 1, and the bottom is fixedly installed with a scraper 36.

[0042] The outer end of the trapezoidal stirring blade 33 is inclined and attached to the inner wall of the stirring drum 1, which can reduce the paint retention near the inner wall of the stirring drum 1, and make the paint more uniformly mixed.

[0043] The scraper 36 is installed at the bottom of the stirring blade 33, mainly used for cleaning the paint adhered to the inner wall of the bottom of the stirring cylinder 1, preventing the paint from accumulating and depositing at the bottom during stirring, affecting the stirring effect and the quality of the paint. The scraper 36 has good wear resistance and certain flexibility to adapt to the shape of the inner wall of the stirring cylinder 1 and reduce the wear of the inner wall. Common materials include polyurethane, silica gel or soft stainless steel, etc.

[0044] Please refer to Figure 4 The flared end of the through hole 35 is set to have a port diameter of 5 cm, and the constricted end is set to have a port diameter of 3 cm.

[0045] The flared and constricted design of the through hole 35 can form a complex flow path for the paint during stirring, increase the shearing and mixing effect of the paint, improve the stirring efficiency and uniformity, and at the same time, the flared end helps the paint to enter, providing sufficient feeding space, and the constricted end can generate a certain extrusion force and resistance when the stirring blade 33 rotates, so that the paint is subjected to shearing force when passing through the through hole 35, and is more finely mixed.

[0046] Please refer to Figure 4 The stirring blade 33 is divided into two regions by the fixed rod 34, and the directions of the flared end and the constricted end of the through hole 35 in different regions are opposite.

[0047] The stirring blade 33 is divided into two regions by the fixed rod 34, and the directions of the flared end and the constricted end of the through hole 35 in different regions are opposite. This design can guide the paint to form different flow paths in the two regions of the stirring blade 33, increase the shearing and mixing intensity of the paint, and make the paint more uniformly mixed and optimize the flowability.

[0048] Please refer to Figure 1 The stirring cylinder 1 is provided with a discharge port 11 at the lower end, and a valve body is installed outside the discharge port 11.

[0049] Working principle: The molten coating stirring machine of the present application first distributes the various raw materials in the molten coating in proportion in advance, and directly pours the liquid raw materials into the stirring cylinder 1. The motor 2 31 is started to drive the stirring shaft 32 and the stirring blade 33 to rotate, and the liquid raw materials are first stirred. The design of the through hole 35 can form a complex flow path for the paint during stirring, increase the shearing and mixing effect, and improve the stirring efficiency and uniformity.

[0050] The powder raw materials are then poured into the feeding cylinder 25 in turn, and then the motor 1 22 is started to drive the movable frame 24 and the feeding cylinder 25 to rotate at a uniform speed. At this time, the powder raw materials will be uniformly scattered into the stirring cylinder 1 through the discharge end, avoiding the problem of uneven stirring caused by concentrated feeding, until the powder raw materials and the liquid raw materials are uniformly mixed.

Claims

1. A mixer for stirring of a foundry coating, comprising a stirring drum (1) in which a stirring assembly (3) is arranged, characterized in that The feeding assembly (2) includes a feeding cylinder (25), which rotates uniformly on the upper end of the stirring cylinder (1), and the discharge end of the feeding cylinder (25) extends downward into the stirring cylinder (1). The stirring assembly (3) includes a stirring shaft (32) and stirring blades (33), and the stirring blades (33) are covered with through holes (35) with different diameters at both ends.

2. A mixer for stirring a foundry coating according to claim 1, characterized in that: The feeding assembly (2) further includes a fixed frame (21) and a movable frame (24), the fixed frame (21) is welded to the upper end of the stirring cylinder (1), and a motor (22) is fixedly installed on the frame body of the fixed frame (21), and the output end of the motor (22) is fixedly connected with a rotating shaft (23).

3. A mixer for the stirring of a foundry coating according to claim 2, characterized in that: One end of the movable frame (24) is fixedly connected with the rotating shaft (23), and the other end is slidably connected with the stirring cylinder (1) through a sliding groove (12).

4. A mixer for the stirring of a refractory coating mix according to claim 2, characterised in that: The feeding cylinder (25) is assembled on the movable frame (24).

5. A mixer for use in the mixing of a foundry coating material according to claim 1, characterized in that: The bottom of the stirring cylinder (1) is fixedly installed with a motor (31), and the output end of the motor (31) is fixedly connected with the stirring shaft (32).

6. A mixer for use in the mixing of a foundry coating material according to claim 1, characterized in that: The stirring blades (33) are trapezoidal, the outer end is inclined and adheres to the inner wall of the stirring cylinder (1), and the bottom is fixedly installed with a scraper (36).

7. A mixer for use in the mixing of a foundry coating material according to claim 1, characterized in that: The diameter of the flared end of the through hole (35) is 5 cm, and the diameter of the constricted end is 3 cm.

8. A mixer for use in the mixing of a fusion coating according to claim 1, characterized in that: The stirring blades (33) are divided into two regions by a fixed rod (34), and the directions of the flared end and the constricted end of the through hole (35) in different regions are opposite.

9. A mixer for use in the mixing of a fusion coating according to claim 1, characterized in that: A discharge port (11) is formed in the lower end of the stirring cylinder (1), and a valve body is installed outside the discharge port (11).

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