Precoated sand mixer

Abstract

The utility model discloses a precoated sand mixer, which relates to the technical field of sand mixers and comprises a mixing barrel, a top cover is mounted on the top surface of the mixing barrel, a sand guide pipe is arranged on one side of the top cover, an auxiliary guide pipe is arranged on the other side of the top cover, and the bottom ends of the sand guide pipe and the auxiliary guide pipe are fixedly communicated with the outer wall of the mixing barrel. According to the sand mixing device, the gear motor is started to drive the conical bottom plate to rotate, the conical bottom plate drives the rotating shaft and the arc-shaped plate to synchronously rotate so as to stir and disperse sand, and the sand can be stirred and dispersed through transmission of the stirring shaft and the rotating shaft, so that the sand can be uniformly mixed, and the sand can be uniformly mixed. The stirring shafts on the two sides of the rotating shaft rotate at the same time, so that the stirring blades are controlled to stir sand materials dispersed to the edge again to the center, then resin and an additive are added, circular stirring is formed through cooperation of the stirring blades and the arc-shaped plates, the materials are rapidly mixed, and the mixing efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand mixers, in particular to a coated sand mixer. Background Art

[0002] The coated sand mixer is a device used to produce coated sand. It vigorously stirs these materials through a stirring device. The blades of the stirrer rotate at a certain speed to make the original sand and various additives fully contact, so that the binder is evenly wrapped on the surface of the original sand particles to form coated sand.

[0003] However, in the prior art, the existing sand mixer has a slow mixing speed for the coated sand raw materials during use, which affects the turning and mixing of the materials, and the resin cannot be quickly and evenly wrapped on the surface of the sand particles, thereby reducing production efficiency. In large-scale casting production, it will lead to insufficient supply of coated sand, affecting the progress of the entire casting production line. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing sand mixer has a slow mixing speed for the coated sand raw materials during use, which affects the turning and mixing of the materials, the resin cannot be quickly and evenly wrapped on the surface of the sand particles, and the production efficiency is reduced. In large-scale casting production, it will lead to insufficient supply of coated sand. A coated sand mixer is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coated sand mixer, comprising a mixing barrel, a top cover is installed on the top surface of the mixing barrel, a sand material conduit is provided on one side of the top cover, and an auxiliary material conduit is provided on the other side of the top cover, the bottom ends of the sand material conduit and the auxiliary material conduit are fixedly connected to the outer wall of the mixing barrel, a reduction motor is provided under the mixing barrel, a rotating shaft is rotatably connected to the inner wall of the mixing barrel, the bottom end of the rotating shaft is fixedly connected to a conical bottom plate, the top surface of the conical bottom plate is fixedly connected to an arc plate, the bottom center of the conical bottom plate is fixedly connected to the output shaft end of the reduction motor, stirring shafts are provided on both sides of the rotating shaft, the bottom surface of the stirring shaft is fixedly connected to a stirring blade, and the top end of the stirring shaft is transmission-connected to the rotating shaft.

[0006] Preferably, the top surface of the top cover is connected with a transmission box, cylinders are provided on both sides of the transmission box, and the telescopic rods of the two cylinders pass through the bottom surface of the top cover and are fixedly connected with movable cover plates.

[0007] Preferably, one of the movable cover plates is arranged on one side of the bottom end of the sand material conduit, and the other movable cover plate is arranged on one side of the bottom end of the auxiliary material conduit.

[0008] Preferably, a support frame is fixedly connected to the lower outer wall of the mixing barrel, and a mounting plate is fixedly connected to the inner wall of the support frame.

[0009] Preferably, the reduction motor is fixedly mounted on the top surface of the mounting plate.

[0010] Preferably, a material guide plate is fixedly connected to the bottom surface of the mixing barrel, a material discharge baffle is provided above the material guide plate, and the material discharge baffle is rotatably connected to the outer wall of the mixing barrel.

[0011] Preferably, the top end of the rotating shaft passes through the inner wall of the transmission box and is fixedly connected to gear 1.

[0012] Preferably, both sides of the gear one are meshedly connected with the gear two, and the top end of the stirring shaft passes through the inner wall of the transmission box and is fixedly connected to the gear two.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, the conical bottom plate is driven to rotate by starting the reduction motor, and the conical bottom plate drives the rotating shaft and the arc plate to rotate synchronously to stir and disperse the sand material. The stirring shaft and the rotating shaft are driven so that the stirring shafts on both sides of the rotating shaft rotate at the same time, thereby controlling the stirring blades to stir the sand material dispersed to the edge to the center again, and then the resin and additives are added. The cooperation of the stirring blades and the arc plate forms a circular stirring so that the materials are quickly mixed, effectively improving the mixing efficiency.

[0015] 2. In the utility model, the movable cover is controlled to rise and fall in the mixing barrel by setting two cylinders, thereby controlling the on and off of the sand material duct and the auxiliary material duct in the mixing barrel. The movable cover is used to cover and protect the bottom of the sand material duct and the auxiliary material duct, thereby preventing dust from entering the auxiliary material duct during the sand feeding process and avoiding cross contamination caused by the materials in the sand material duct and the auxiliary material duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural diagram of a coated sand mixer;

[0017] Figure 2 This utility model provides a schematic diagram of the internal structure of a mixing barrel of a coated sand mixer;

[0018] Figure 3 The utility model provides a schematic diagram of the internal structure of a coated sand mixer;

[0019] Figure 4 The utility model provides a schematic diagram of the internal structure of a transmission box of a coated sand mixer.

[0020] Legend: 1. Mixing barrel; 11. Rotating shaft; 12. Curved plate; 13. Stirring shaft; 14. Stirring blade; 15. Conical bottom plate; 16. Gear 1; 17. Gear 2; 2. Abrasive material guide tube; 3. Top cover; 31. Transmission box; 32. Cylinder; 33. Movable cover; 4. Material guide plate; 5. Support frame; 51. Mounting plate; 52. Reducer motor; 6. Auxiliary material guide tube; 7. Discharge baffle. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Figure 1 - Figure 4 As shown, the utility model provides a coated sand mixer, comprising a mixing barrel 1, a top cover 3 is installed on the top surface of the mixing barrel 1, a sand material conduit 2 is provided on one side of the top cover 3, and an auxiliary material conduit 6 is provided on the other side of the top cover 3, the bottom ends of the sand material conduit 2 and the auxiliary material conduit 6 are fixedly connected to the outer wall of the mixing barrel 1, a reduction motor 52 is provided below the mixing barrel 1, a rotating shaft 11 is rotatably connected to the inner wall of the mixing barrel 1, the bottom end of the rotating shaft 11 is fixedly connected to a conical bottom plate 15, the top surface of the conical bottom plate 15 is fixedly connected to an arc plate 12, the bottom center of the conical bottom plate 15 is fixedly connected to the output shaft end of the reduction motor 52, stirring shafts 13 are provided on both sides of the rotating shaft 11, the bottom surface of the stirring shaft 13 is fixedly connected to a stirring blade 14, and the top end of the stirring shaft 13 is transmission-connected to the rotating shaft 11.

[0024] The following is a detailed description of the specific settings and functions of this embodiment. By starting the reduction motor 52 to drive the conical bottom plate 15 to rotate, the conical bottom plate 15 drives the rotating shaft 11 and the curved plate 12 to rotate synchronously to stir and disperse the sand material. The gear 16 and the gear 2 17 are engaged and driven to make the stirring shafts 13 on both sides of the rotating shaft 11 rotate at the same time, thereby controlling the stirring blades 14 to stir the sand material dispersed to the edge to the center again, and then add resin and additives. The stirring blades 14 and the curved plate 12 cooperate to form a circular stirring so that the materials are quickly mixed, effectively improving the mixing efficiency.

[0025] Example 2: Figure 1 - Figure 4As shown, cylinders 32 are provided on both sides of the transmission box 31, and the telescopic rods of the two cylinders 32 pass through the bottom surface of the top cover 3 and are fixedly connected to movable cover plates 33, one of which is arranged on the bottom end side of the sand material conduit 2, and the other movable cover plate 33 is arranged on the bottom end side of the auxiliary material conduit 6. The lower outer wall of the mixing barrel 1 is fixedly connected to the support frame 5, and the inner wall of the support frame 5 is fixedly connected to the mounting plate 51. The reduction motor 52 is fixedly installed on the top surface of the mounting plate 51, and the bottom surface of the mixing barrel 1 is fixedly connected to the guide plate 4. A discharge baffle 7 is provided above the guide plate 4, and the discharge baffle 7 is rotatably connected to the outer wall of the mixing barrel 1. The top surface of the top cover 3 passes through the transmission box 31, and the top end of the rotating shaft 11 passes through the inner wall of the transmission box 31 and is fixedly connected to gear 1 16. Gear 2 17 is meshed on both sides of gear 16, and the top end of the stirring shaft 13 passes through the inner wall of the transmission box 31 and is fixedly connected to gear 2 17.

[0026] The effect achieved by the entire embodiment is that, through the setting of two cylinders 32, the movable cover 33 is controlled to rise and fall in the mixing barrel 1, thereby controlling the on and off of the sand material conduit 2 and the auxiliary material conduit 6 in the mixing barrel 1, and the movable cover 33 is used to cover and protect the bottom of the sand material conduit 2 and the auxiliary material conduit 6, thereby preventing dust from entering the auxiliary material conduit 6 during the sand material feeding process, and preventing cross contamination caused by the materials in the sand material conduit 2 and the auxiliary material conduit 6. Through the setting of the guide plate 4 and the discharge baffle 7, it is convenient for the user to rotate the discharge baffle 7 to discharge the mixed material through the discharge baffle 7, and use the guide plate 4 to guide the material.

[0027] The method of use and working principle of this device are as follows: when in use, the user injects sand into the mixing barrel 1 through the sand material conduit 2, and then starts the reduction motor 52 to drive the conical bottom plate 15 to rotate. The conical bottom plate 15 drives the rotating shaft 11 and the curved plate 12 to rotate synchronously to stir and disperse the sand material. The stirring shafts 13 on both sides of the rotating shaft 11 are rotated simultaneously through the transmission of gear 16 and gear 2 17, thereby controlling the stirring blades 14 to stir the sand material dispersed to the edge to the center again, and then resin and additives are added to the sand material in the mixing barrel 1 through the auxiliary material conduit 6. The cooperation of the stirring blades 14 and the curved plate 12 forms a circular stirring so that the materials are quickly mixed. The movable cover plate 33 is controlled to rise and fall in the mixing barrel 1 by the setting of the two cylinders 32, thereby controlling the on and off of the sand material conduit 2 and the auxiliary material conduit 6 in the mixing barrel 1. The movable cover plate 33 is used to cover and protect the bottom of the sand material conduit 2 and the auxiliary material conduit 6, thereby preventing dust from entering the auxiliary material conduit 6 during the sand material feeding process.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A coated sand mixer, comprising a mixing barrel (1), characterized in that: The top surface of the mixing barrel (1) is provided with a top cover (3), a sand material conduit (2) is provided on one side of the top cover (3), and an auxiliary material conduit (6) is provided on the other side of the top cover (3), the bottom ends of the sand material conduit (2) and the auxiliary material conduit (6) are fixedly connected to the outer wall of the mixing barrel (1), a reduction motor (52) is provided below the mixing barrel (1), the inner wall of the mixing barrel (1) is rotatably connected to a rotating shaft (11), the bottom end of the rotating shaft (11) is fixedly connected to a conical bottom plate (15), the top surface of the conical bottom plate (15) is fixedly connected to an arc plate (12), the bottom center of the conical bottom plate (15) is fixedly connected to the output shaft end of the reduction motor (52), a stirring shaft (13) is provided on both sides of the rotating shaft (11), the bottom surface of the stirring shaft (13) is fixedly connected to a stirring blade (14), and the top end of the stirring shaft (13) is transmission-connected to the rotating shaft (11).

2. The coated sand mixer according to claim 1, characterized in that: The top surface of the top cover (3) is connected to a transmission box (31) through which a cylinder (32) is provided on both sides of the transmission box (31). The telescopic rods of the two cylinders (32) pass through the bottom surface of the top cover (3) and are fixedly connected to a movable cover plate (33).

3. The coated sand mixer according to claim 2, characterized in that: One of the movable cover plates (33) is arranged on one side of the bottom end of the sand material conduit (2), and the other movable cover plate (33) is arranged on one side of the bottom end of the auxiliary material conduit (6).

4. The coated sand mixer according to claim 1, characterized in that: A support frame (5) is fixedly connected to the lower outer wall of the mixing barrel (1), and a mounting plate (51) is fixedly connected to the inner wall of the support frame (5).

5. The coated sand mixer according to claim 4, characterized in that: The reduction motor (52) is fixedly mounted on the top surface of the mounting plate (51).

6. The coated sand mixer according to claim 1, characterized in that: A material guide plate (4) is fixedly connected to the bottom surface of the mixing barrel (1), a material discharge baffle (7) is provided above the material guide plate (4), and the material discharge baffle (7) is rotatably connected to the outer wall of the mixing barrel (1).

7. The coated sand mixer according to claim 2, characterized in that: The top end of the rotating shaft (11) passes through the inner wall of the transmission box (31) and is fixedly connected to a gear 1 (16).

8. The coated sand mixer according to claim 7, characterized in that: Both sides of the gear 1 (16) are meshedly connected with the gear 2 (17), and the top end of the stirring shaft (13) passes through the inner wall of the transmission box (31) and is fixedly connected to the gear 2 (17).

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