Efficient stirring device of precoated sand mixer

Abstract

The utility model relates to the field of precoated sand, and discloses an efficient stirring device of a precoated sand mixer, which comprises two support frames vertically arranged in the horizontal direction, a mounting frame is rotatably connected between the two support frames, the mounting frame is rotatably connected with a stirring barrel, the stirring barrel is provided with a material port, and the material port is provided with a material outlet. A stirring shaft is rotationally connected into the stirring barrel, a plurality of stirring rods are arranged on the stirring shaft, a first driving mechanism for driving the mounting frame to rotate is arranged on the supporting frame, and a second driving mechanism for driving the stirring shaft to rotate is arranged on the mounting frame. The mixing device has the advantages and effects that materials are mixed in multiple directions, and the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand, in particular to a high-efficiency stirring device of a coated sand mixer. Background Art

[0002] Coated sand is an important casting material in the foundry industry, which is composed of sand, resin binder and curing agent. Coated sand has good fluidity, strength and heat resistance, and is widely used in the production of various castings. The preparation process of coated sand generally includes sand mixing, molding and firing. Sand mixing is an important process in the production of coated sand. Its purpose is to evenly mix sand, resin binder and curing agent, so that the coated sand has good performance.

[0003] Existing coated sand mixers mainly adopt a bidirectional rotor stirring method. This method mixes the materials evenly through two counter-rotating rotors, which can effectively prevent the mixture from generating vortexes in the container, thereby improving the uniformity of the mixture. However, since the mixing container is stationary, this method is prone to cause mixing dead corners at the edge of the bottom of the container, thereby affecting the mixing efficiency. If sufficient mixing is required, there will be friction between the mixing rod and the barrel, resulting in wear of the mixing rod, which also affects the mixing efficiency. Utility Model Content

[0004] The utility model aims to provide a high-efficiency stirring device for a coated sand mixer, which has the effects of multi-directional sand mixing and high sand mixing efficiency.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: a high-efficiency stirring device of a coated sand mixer, comprising two support frames vertically arranged in the horizontal direction, a mounting frame rotatably connected between the two support frames, a stirring barrel rotatably connected to the mounting frame, a material port is provided on the stirring barrel, a stirring shaft is rotatably connected in the stirring barrel, a plurality of stirring rods are provided on the stirring shaft, a first driving mechanism for driving the mounting frame to rotate is provided on the support frame, and a second driving mechanism for driving the stirring shaft to rotate is provided on the mounting frame.

[0006] By adopting the above technical solution, the material is added from the material inlet, and then the material inlet is sealed. The driving mechanism drives the mounting frame to rotate, so that the mixing barrel arranged on the mounting frame rotates, thereby avoiding the sedimentation of the material in the mixing barrel and causing uneven mixing of the materials. At the same time, the mixing shaft in the mixing barrel rotates, so that the materials are fully dispersed and mixed, thereby improving the sand mixing efficiency.

[0007] The utility model is further configured as follows: spindles are fixedly mounted on both sides of the mounting frame, the spindles are rotatably connected to the support frame, the first driving mechanism includes a motor fixedly mounted on the support frame, and the output shaft of the motor passes through the support frame and is fixedly connected to one of the spindles.

[0008] By adopting the above technical solution, the motor drives the main shaft to rotate, so that the mounting frame fixedly connected to the main shaft rotates, and the mixing barrel rotates around the main shaft, thereby avoiding material deposition.

[0009] The utility model is further configured as follows: the second driving mechanism includes two mounting plates fixedly mounted on the mounting frame, a first driving shaft is rotatably connected between the two mounting plates, and the first driving shaft is fixed near one end of the mounting frame

[0010] A bevel gear 1 is fixedly installed thereon, a first driving wheel is fixedly installed on the end of the first driving shaft away from the bevel gear 1, a first driven wheel is fixedly installed on one end of the stirring shaft passing through the mounting frame and a first driven wheel is fixedly installed thereon, a first driving belt is transmission-connected between the first driving wheel and the first driven wheel, and the stirring shaft is rotationally connected to the mounting frame.

[0011] By adopting the above technical solution, the first driving shaft rotates, causing the first driving wheel to rotate, and the first driven wheel is driven to rotate through the first driving belt, causing the stirring shaft fixedly connected to the first driven wheel to rotate, and the stirring rod on the stirring shaft breaks up and stirs the material.

[0012] The utility model is further configured as follows: two support plates are fixedly mounted on the mounting frame, a second driving shaft is rotatably connected between the two support plates, the second driving shaft is on the same straight line as the first driving shaft, a bevel gear 2 is fixedly mounted on one end of the second driving shaft close to the mounting frame, a second driving wheel is fixedly mounted on one end of the second driving shaft away from the bevel gear 2, a support shaft is fixedly mounted on one end of the mixing barrel, a second driven wheel is fixedly mounted on the support shaft passing through the mounting frame, the support shaft is rotatably connected to the mounting frame, and a second driving belt is transmission-connected between the second driving wheel and the second driven wheel.

[0013] By adopting the above technical solution, the second drive shaft rotates, causing the second driving wheel to rotate, and the second driven wheel is driven to rotate through the second drive belt, causing the support shaft fixedly connected to the second driven wheel to rotate, driving the mixing barrel to rotate around the support shaft to mix the materials.

[0014] The utility model is further configured as follows: a bevel gear three is fixedly mounted on one side of the support frame close to the mounting frame, the center of the bevel gear three is in the same straight line as the center of the main shaft, and the bevel gear two and the bevel gear three are both vertically meshed with the bevel gear one.

[0015] By adopting the above technical solution, bevel gear three is fixedly installed on the support frame. When the motor drives the mounting frame to rotate, bevel gear two and bevel gear one on one side of the mounting frame are driven to rotate, so that the first drive shaft and the second drive shaft are rotated. Through one motor, the mixing barrel can be driven to rotate in multiple directions at the same time, so that the materials are mixed evenly and dead corners are avoided.

[0016] The utility model is further configured as follows: the central axes of the stirring shaft and the supporting shaft are colinear.

[0017] By adopting the above technical solution, the mixing barrel can be kept stable.

[0018] The utility model is further configured as follows: a material lifting plate is provided at one end of the stirring rod away from the stirring shaft.

[0019] By adopting the above technical solution, the lifting plate can mix the materials more fully.

[0020] The utility model is further configured as follows: the mixing barrel is cylindrical in the middle, and both ends of the barrel are tapered to gradually become smaller.

[0021] By adopting the above technical solution, both ends of the mixing barrel are gradually tapered to facilitate complete unloading.

[0022] The utility model is further configured as follows: the material inlet is arranged in the middle of the cylindrical shape of the mixing barrel.

[0023] By adopting the above technical solution, the material opening is arranged in the middle, which is convenient for unloading.

[0024] The utility model is further configured as follows: a sealing cover is provided on the material opening.

[0025] The beneficial effects of the utility model are:

[0026] 1. Add the material from the material inlet, then seal the material inlet. The driving mechanism drives the mounting frame to rotate, so that the mixing barrel installed on the mounting frame rotates around the main shaft and the supporting shaft to avoid the material sedimentation in the mixing barrel, which causes uneven mixing of the materials. At the same time, the mixing shaft in the mixing barrel rotates to fully disperse and mix the materials, thereby improving the sand mixing efficiency.

[0027] 2. One motor can drive the mixing barrel to rotate around the main shaft and the supporting shaft, and can also drive the mixing shaft to rotate, saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the utility model.

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0031] In the figure, 1. support frame; 2. mounting frame; 3. mixing barrel; 4. material port; 5. mixing shaft; 6. mixing rod; 7. first driving mechanism; 71. motor; 8. second driving mechanism; 81. mounting plate; 82. first driving shaft; 83. bevel gear one; 84. first driving wheel; 85. first driven wheel; 86. first driving belt; 9. main shaft; 10. support plate; 11. second driving shaft; 12. bevel gear two; 13. second driving wheel; 14. second driven wheel; 15. second driving belt; 16. bevel gear three; 17. support shaft; 18. material lifting plate; 19. sealing cover. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figure 1 , Figure 2 As shown, a high-efficiency stirring device of a coated sand mixer comprises two support frames 1 vertically arranged in the horizontal direction, a mounting frame 2 is rotatably connected between the two support frames 1, the mounting frame 2 is a square hollow structure, a stirring barrel 3 is rotatably connected to the mounting frame 2, the stirring barrel 3 is cylindrical in the middle, and the two ends of the cylinder are gradually tapered, a material port 4 is fixedly installed in the middle of the cylinder of the stirring barrel 3, a sealing cover 18 is provided on the material port 4, a stirring shaft 5 is rotatably connected in the stirring barrel 3, a plurality of stirring rods 6 are provided on the stirring shaft 5, and a material lifting plate 17 is provided at the end of the stirring rods 6 away from the stirring shaft 5, a first driving mechanism 7 for driving the mounting frame 2 to rotate is provided on the support frame 1, and a second driving mechanism 8 for driving the stirring shaft 5 to rotate is provided on the mounting frame 2.

[0034] Spindle 9 is fixedly installed on both sides of the mounting frame 2, and the spindle 9 is rotatably connected to the support frame 1. The first driving mechanism 7 includes a motor 71 fixedly installed on the support frame 1, and the output shaft of the motor 71 passes through the support frame 1 and is fixedly connected to one of the spindles 9. A bevel gear three 16 is fixedly installed on the side of the support frame 1 close to the mounting frame 2, and the center of the bevel gear three 16 is in the same straight line as the center of the spindle 9, and the spindle 9 is rotatably connected to the bevel gear three 16.

[0035] The second driving mechanism 8 includes two mounting plates 81 fixedly mounted on the mounting frame 2, a first driving shaft 82 is rotatably connected between the two mounting plates 81, a bevel gear 83 is fixedly mounted on one end of the first driving shaft 82 close to the mounting frame 2, the bevel gear 83 is vertically meshed with the bevel gear 3 16, a first driving wheel 84 is fixedly mounted on one end of the first driving shaft 82 away from the bevel gear 83, one end of the stirring shaft 5 passes through the mounting frame 2 and a first driven wheel 85 is fixedly mounted thereon, a first driving belt 86 is transmission-connected between the first driving wheel 84 and the first driven wheel 85, and the stirring shaft 5 is rotatably connected to the mounting frame 2.

[0036] Two support plates 10 are fixedly mounted on the mounting frame 2, and a second driving shaft 11 is rotatably connected between the two support plates 10. The first driving shaft 82 and the second driving shaft 11 are respectively located on both sides of the bevel gear three 16, and the second driving shaft 11 is on the same straight line as the first driving shaft 82. A bevel gear two 12 is fixedly mounted on the end of the second driving shaft 11 close to the mounting frame 2, and the bevel gear two 12 is vertically meshed with the bevel gear three 16. A second driving wheel 13 is fixedly mounted on the end of the second driving shaft 11 away from the bevel gear two 12. A support shaft is fixedly mounted on one end of the mixing barrel 3, and the central axes of the mixing shaft 5 and the support shaft are colinear. A second driven wheel 14 is fixedly mounted on the support shaft passing through the mounting frame 2, and the support shaft is rotatably connected to the mounting frame 2, and a second driving belt 15 is transmission-connected between the second driving wheel 13 and the second driven wheel 14.

[0037] Working principle of this utility model:

[0038] The material is added from the material port 4, and then the material port 4 is sealed. The motor 71 drives the main shaft 9 to rotate, so that the mounting frame 2 fixedly connected to the main shaft 9 rotates, and the mixing barrel 3 rotates around the main shaft 9. Since the bevel gear 3 16 is fixedly installed on the support frame 1, the bevel gear 1 83 and the bevel gear 2 12 are both engaged with the bevel gear 3 16. When the mounting frame 2 rotates, the bevel gear 1 83 and the bevel gear 2 12 can be driven to rotate at the same time. The bevel gear 1 83 rotates, driving the first driving shaft 82 to rotate, so that the first driving wheel 84 rotates, and the first driving belt 86 drives the first The driven wheel 85 rotates, causing the stirring shaft 5 fixedly connected to the first driven wheel 85 to rotate, and the stirring rod 6 on the stirring shaft 5 breaks up and stirs the materials. The bevel gear 12 rotates, driving the second driving shaft 11 to rotate, causing the second driving wheel 13 to rotate, and the second driven wheel 14 is driven to rotate through the second driving belt 15, causing the support shaft fixedly connected to the second driven wheel 14 to rotate, driving the stirring barrel 3 to rotate around the support shaft to mix the materials. After mixing, the material port 4 of the stirring barrel 3 is directed downward, and the sealing cover 18 is opened to complete the discharge.

Claims

1. A high-efficiency stirring device for a coated sand mixer, comprising two support frames (1) arranged vertically in a horizontal direction, characterized in that: A mounting frame (2) is rotatably connected between the two support frames (1), a stirring barrel (3) is rotatably connected to the mounting frame (2), a material port (4) is provided on the stirring barrel (3), a stirring shaft (5) is rotatably connected inside the stirring barrel (3), a plurality of stirring rods (6) are provided on the stirring shaft (5), a first driving mechanism (7) for driving the mounting frame (2) to rotate is provided on the support frame (1), and a second driving mechanism (8) for driving the stirring shaft (5) to rotate is provided on the mounting frame (2).

2. The high-efficiency stirring device of the coated sand mixer according to claim 1 is characterized in that: A main shaft (9) is fixedly mounted on both sides of the mounting frame (2), and the main shaft (9) is rotatably connected to the support frame (1). The first driving mechanism (7) comprises a motor (71) fixedly mounted on the support frame (1), and an output shaft of the motor (71) passes through the support frame (1) and is fixedly connected to one of the main shafts (9).

3. The high-efficiency stirring device of the coated sand mixer according to claim 2 is characterized in that: The second driving mechanism (8) comprises two mounting plates (81) fixedly mounted on the mounting frame (2); a first driving shaft (82) is rotatably connected between the two mounting plates (81); a bevel gear (83) is fixedly mounted on one end of the first driving shaft (82) close to the mounting frame (2); a first driving wheel (84) is fixedly mounted on one end of the first driving shaft (82) away from the bevel gear (83); a first driven wheel (85) is fixedly mounted on one end of the stirring shaft (5) passing through the mounting frame (2); a first driving belt (86) is transmission-connected between the first driving wheel (84) and the first driven wheel (85); and the stirring shaft (5) is rotatably connected to the mounting frame (2).

4. The high-efficiency stirring device of the coated sand mixer according to claim 3 is characterized in that: Two support plates (10) are fixedly mounted on the mounting frame (2), a second drive shaft (11) is rotatably connected between the two support plates (10), the second drive shaft (11) and the first drive shaft (82) are on the same straight line, a second bevel gear (12) is fixedly mounted on one end of the second drive shaft (11) close to the mounting frame (2), a second driving wheel (13) is fixedly mounted on one end of the second drive shaft (11) away from the second bevel gear (12), a support shaft (17) is fixedly mounted on one end of the mixing barrel (3), the support shaft (17) passes through the mounting frame (2) and a second driven wheel (14) is fixedly mounted on the support shaft (17), the support shaft (17) is rotatably connected to the mounting frame (2), and a second driving belt (15) is transmission-connected between the second driving wheel (13) and the second driven wheel (14).

5. The high-efficiency stirring device of the coated sand mixer according to claim 4 is characterized in that: A bevel gear three (16) is fixedly mounted on one side of the support frame (1) close to the mounting frame (2); the center of the bevel gear three (16) is in the same straight line as the center of the main shaft (9); and the bevel gear two (12) and the bevel gear three (16) are both vertically meshed with the bevel gear one (83).

6. The high-efficiency stirring device of the coated sand mixer according to claim 4 is characterized in that: The central axes of the stirring shaft (5) and the supporting shaft (17) are collinear.

7. The high-efficiency stirring device of the coated sand mixer according to claim 1 is characterized in that: A material lifting plate (18) is provided at one end of the stirring rod (6) away from the stirring shaft (5).

8. The high-efficiency stirring device of the coated sand mixer according to claim 1 is characterized in that: The mixing barrel (3) is cylindrical in the middle, and has gradually tapered ends.

9. The high-efficiency stirring device of the coated sand mixer according to claim 8, characterized in that: The material inlet (4) is arranged in the middle of the cylindrical shape of the stirring barrel (3).

10. The high-efficiency stirring device of the coated sand mixer according to claim 1, characterized in that: The material opening (4) is provided with a sealing cover (19).

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