Raw material mixing device for sand core manufacturing

Abstract

The utility model discloses a raw material mixing device for manufacturing a sand core, which comprises a mixing cylinder, the mixing cylinder is directly arranged on the ground, a scattering mechanism is arranged at the upper part in the mixing cylinder, the scattering mechanism comprises a rotating plate, a scattering cone, a rotating shaft, a belt pulley, a connecting belt, a motor, a support frame and a hole, a rotating plate is arranged at the upper part in the mixing cylinder, the rotating plate is placed in a slope manner, and scattering cones are arranged above the rotating plate in an array manner. According to the raw material mixing device for sand core manufacturing, the intermittent rotating mechanism is arranged, so that the service life of a stirring rod can be greatly prolonged when the stirring rod stops during high-speed rotation, meanwhile, the scattering mechanism is arranged, sand core raw materials are scattered once before being stirred and mixed, the follow-up raw materials can be mixed more uniformly, and the production efficiency is improved. In addition, a pushing mechanism is arranged, and a pushing plate is arranged above the discharging port, so that the discharging port cannot be blocked during discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of sand core manufacturing, in particular to a raw material mixing device for sand core manufacturing. Background Art

[0002] A sand core is a hollow core made of sand or other materials. It is inserted into the mold during the casting process to form parts with complex shapes such as cavities, hollows, and thin walls. The sand core can accurately provide space and shape to the interior of the casting and can be easily removed from the casting after the casting is completed. Sand cores are used to cast parts with medium to high difficulty, complex structures, and high precision requirements. Before using sand cores to make castings, the sand core raw materials need to be mixed. There are many different raw material mixing devices currently available on the market for sand core manufacturing, but they still have some disadvantages.

[0003] For example, in actual use, a raw material mixing device generally used in sand core manufacturing pours different raw materials for sand cores into a mixing drum for mixing. Generally, the mixing device will continue to rotate at high speed while stirring, which will greatly shorten the life of the stirring rod. At the same time, the raw materials for sand cores generally clump together when poured into the mixing drum, and directly enter the mixing drum for stirring, which will increase the stirring pressure on the stirring rod. In addition, the outlet of the general mixing device is relatively narrow, which will easily lead to problems such as blockage during discharge. Therefore, we propose a raw material mixing device for sand core manufacturing to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a raw material mixing device for sand core manufacturing, so as to solve the problems of the current raw material mixing device for sand core manufacturing proposed in the above background technology, which is that different raw materials for sand cores are poured into a mixing drum for mixing. Generally, the mixing device will continue to rotate at high speed during stirring, which will greatly shorten the life of the stirring rod. At the same time, the raw materials for sand cores are generally poured into the mixing drum and condensed together in large pieces. If they are directly stirred in the mixing drum, the stirring pressure on the stirring rod will be increased. In addition, the outlet of the general mixing device is relatively narrow, which will easily lead to blockage during discharge.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a raw material mixing device for sand core manufacturing, comprising:

[0006] A mixing cylinder, the mixing cylinder being placed directly on the ground;

[0007] Also includes:

[0008] A scattering mechanism is provided above the interior of the mixing drum, wherein the scattering mechanism includes a rotating plate, a scattering cone, a rotating shaft, a pulley, a connecting belt, a motor, a support frame and a hole. A rotating plate is provided above the interior of the mixing drum, and the rotating plate is arranged in a sloped manner, and scattering cones are arranged in an array above the rotating plate;

[0009] An intermittent rotation mechanism is provided above the interior of the mixing drum, wherein the intermittent rotation mechanism includes a rotating rod, a stirring rod, a rotating disk, a fixed block, a fan-shaped block and a toggle rod. The middle part of the mixing drum is rotatably installed with a rotating rod, and a rotating disk is fixedly installed above the rotating rod, and sliding grooves are equidistantly provided inside the rotating disk.

[0010] Preferably, a rotating shaft is fixedly installed inside the rotating plate, and a pulley is connected to the rear end of the rotating shaft, and the pulleys are symmetrically located on the left and right sides of the rear outer side of the mixing cylinder.

[0011] Preferably, a connecting belt is provided on the outside of the pulley, and the rear end of the pulley on the right side of the outside of the mixing drum is connected to a motor, and a support frame is installed below the motor, and the support frame is directly placed on the ground.

[0012] Preferably, a hole is provided inside the rotating plate, and a rotating rod is provided inside the hole.

[0013] Preferably, a sliding groove provided inside the rotating disk is in sliding contact with a toggle rod, a sector block is installed on the upper left side of the toggle rod, and a motor is connected to the top of the toggle rod.

[0014] Preferably, the sector block and the fixed block are slidably connected, and the fixed block is installed at an equal angle on the outside of the rotating disk.

[0015] Preferably, an electric telescopic rod is fixedly mounted on the bottom of the rotating rod, a protective hose is provided on the outside of the electric telescopic rod, and a push plate is mounted on the output end of the electric telescopic rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the raw material mixing device for sand core manufacturing is provided with an intermittent rotation mechanism, which allows the stirring rod to pause during high-speed rotation, thereby greatly extending the service life of the stirring rod; at the same time, a dispersing mechanism is provided to disperse the sand core raw materials before stirring and mixing, which can make the subsequent raw materials more evenly mixed; in addition, a pushing mechanism is provided, and a pushing plate is provided above the discharge port, which can prevent the discharge port from being blocked when the material is discharged;

[0017] 1. A rotating plate, a scattering cone, a rotating shaft and a pulley are provided. The sand core raw material enters the interior of the mixing drum from the feeding port on the upper right side of the mixing drum, and first falls on the top of the rotating plate. Since the scattering cone is arranged in an array above the rotating plate, the interior of the rotating plate is fixedly connected to the rotating shaft, and the rotating shaft is arranged inside the mixing drum. In addition, the rear end of the rotating shaft is connected to the pulley, and a connecting belt is arranged on the outside of the pulley for connection. The connecting belt is in the shape of "8". Secondly, the rear end of the pulley on the right side of the rear outside of the mixing drum is connected to the motor, and a support frame is provided under the motor for support. That is, when the motor is turned on, the motor can make the pulley start to rotate. When the pulley rotates, the rotating shaft will also rotate with the pulley, and the rotating plate can follow the rotating shaft to rotate up and down above the interior of the mixing drum, so that the scattering cone above the rotating plate can effectively scatter the sand core raw material;

[0018] 2. A rotating rod, a stirring rod, a rotating disk and a fixed block are provided. The rotating rod is provided through the middle of the mixing drum, and the rotating rod is located in a hole opened inside the rotating plate. At the same time, the stirring rod is installed below the rotating rod. In addition, the rotating disk is connected to the top of the rotating rod, and sliding grooves are provided inside the rotating disk at equal angles, and a fixed block is installed at equal distances on the outside of the rotating disk. The top of the toggle rod above the left side of the rotating disk is connected to the motor. Secondly, a fan-shaped block is installed above the left side of the toggle rod. When the motor is turned on, the motor will cause the fan-shaped block and the toggle rod to start rotating. When the toggle rod rotates, it will closely contact with the sliding groove provided inside the rotating disk, that is, the rotating disk will rotate. Secondly, when the fan-shaped block rotates, it will produce sliding contact with the inside of the fixed block, that is, the rotating disk will stop rotating. That is, when the rotating rod and the stirring rod stop rotating at high speed in the mixing drum, their service life will be greatly extended.

[0019] 3. An electric telescopic rod, a protective hose and a push plate are provided. The push plate is provided through the lower part of the mixing barrel, and the push plate is located above the discharge port of the mixing barrel. At the same time, the push plate is installed at the output end of the electric telescopic rod. A protective hose is provided on the outside of the electric telescopic rod for protection. That is, when the electric telescopic rod is opened, the output end of the electric telescopic rod can push the push plate to move up and down. When the push plate moves up and down, it can help the mixed raw materials to be better discharged from the inside of the mixing barrel, so that the discharge port will not be blocked when discharging materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the right side cross-sectional structure of the utility model;

[0023] Figure 4 This is a perspective structural diagram of the connection between the rotating disk, the fixed block and the fan-shaped block of the utility model.

[0024] In the figure: 1. Mixing drum; 2. Rotating plate; 3. Breaking cone; 4. Rotating shaft; 5. Pulley; 6. Connecting belt; 7. Motor; 8. Support frame; 9. Hole; 10. Rotating rod; 11. Stirring rod; 12. Rotating disk; 13. Fixed block; 14. Fan-shaped block; 15. Toggle rod; 16. Electric telescopic rod; 17. Protective hose; 18. Push plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution: a raw material mixing device for sand core manufacturing, comprising: a mixing drum 1, a rotating plate 2, a breaking cone 3, a rotating shaft 4, a pulley 5, a connecting belt 6, a motor 7, a support frame 8, a hole 9, a rotating rod 10, a stirring rod 11, a rotating disk 12, a fixed block 13, a fan-shaped block 14, a toggle rod 15, an electric telescopic rod 16, a protective hose 17, and a push plate 18;

[0027] like Figure 1 、 Figure 2 and Figure 3 As shown in the figure, a feeding port is provided at the upper right corner of the mixing drum 1. The sand core raw material can enter the interior of the mixing drum 1 from the feeding port at the upper right corner of the mixing drum 1, and will first fall on the top of the rotating plate 2. Since a scattering cone 3 is arranged in an array above the rotating plate 2, the interior of the rotating plate 2 is fixedly connected to the rotating shaft 4, and the rotating shaft 4 is arranged inside the mixing drum 1. In addition, the rear end of the rotating shaft 4 is connected to a pulley 5, and a connecting belt 6 is provided on the outside of the pulley 5 for connection, and the connecting belt 6 is in the shape of an "8". Secondly, the rear end of the pulley 5 on the right side of the rear outside of the mixing drum 1 is connected to a motor 7, and a support frame 8 is connected to the bottom of the motor 7 for support. That is, when the motor 7 is turned on, the motor 7 can make the pulley 5 start to rotate. When the pulley 5 rotates, the rotating shaft 4 will also rotate with the pulley 5, and the rotating plate 2 can follow the rotating shaft 4 to rotate up and down above the interior of the mixing drum 1, so that the scattering cone 3 above the rotating plate 2 can effectively scatter the sand core raw material entering the mixing drum 1;

[0028] like Figure 1 、 Figure 3 and Figure 4 As shown in the figure, after the sand core raw materials enter the mixing drum 1 and are broken up, a rotating rod 10 is set in the middle of the mixing drum 1, and the rotating rod 10 is located in the hole 9 opened inside the rotating plate 2. At the same time, a stirring rod 11 is installed below the rotating rod 10, and a rotating disk 12 is connected to the top of the rotating rod 10. Sliding grooves are set at equal angles inside the rotating disk 12, and fixed blocks 13 are installed at equal distances on the outside of the rotating disk 12. A toggle rod 15 is set on the upper left side of the rotating disk 12, and the top of the toggle rod 15 is connected to the motor 7. A sector block 14 is installed on the upper left side of the movable rod 15. When the motor 7 is turned on, the motor 7 will cause the sector block 14 and the toggle rod 15 to start rotating. When the toggle rod 15 rotates, it will closely contact the sliding groove provided inside the rotating disk 12, that is, the rotating disk 12 will rotate. Secondly, when the sector block 14 rotates, it will come into sliding contact with the inside of the fixed block 13, that is, the rotating disk 12 will stop rotating. That is, the rotating rod 10 and the stirring rod 11 can have a pause when rotating at high speed in the mixing drum 1, which will greatly extend their service life.

[0029] like Figure 1 and Figure 3 As shown in the figure, after the raw materials are mixed through the sand core, they need to be discharged, that is, a pushing plate 18 is provided at the lower part of the interior of the mixing drum 1, and the pushing plate 18 is located above the discharge port of the mixing drum 1, and the pushing plate 18 is installed at the output end of the electric telescopic rod 16, and a protective hose 17 is provided on the outside of the electric telescopic rod 16 for protection, that is, the electric telescopic rod 16 is opened, and the output end of the electric telescopic rod 16 can push the pushing plate 18 to move up and down. When the pushing plate 18 moves up and down, it can help the mixed raw materials in the mixing drum 1 to be better discharged from the interior of the mixing drum 1, so that the discharge port of the mixing drum 1 will not be blocked when discharging materials.

[0030] The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connections adopt conventional connection methods in the existing technology, which will not be described in detail here.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A raw material mixing device for sand core manufacturing, comprising: A mixing cylinder (1), wherein the mixing cylinder (1) is directly placed on the ground; It is characterized by further comprising: A scattering mechanism is provided above the interior of the mixing drum (1), wherein the scattering mechanism comprises a rotating plate (2), a scattering cone (3), a rotating shaft (4), a pulley (5), a connecting belt (6), a motor (7), a support frame (8) and a hole (9); a rotating plate (2) is provided above the interior of the mixing drum (1), and the rotating plate (2) is arranged in a sloped manner, and scattering cones (3) are provided in an array above the rotating plate (2); An intermittent rotating mechanism is arranged above the interior of the mixing drum (1), wherein the intermittent rotating mechanism comprises a rotating rod (10), a stirring rod (11), a rotating disk (12), a fixed block (13), a sector block (14) and a toggle rod (15); the rotating rod (10) is rotatably mounted in the middle of the mixing drum (1), and the rotating disk (12) is fixedly mounted above the rotating rod (10), and sliding grooves are arranged at equal distances inside the rotating disk (12).

2. A raw material mixing device for sand core manufacturing according to claim 1, characterized in that: A rotating shaft (4) is fixedly installed inside the rotating plate (2), and a pulley (5) is connected to the rear end of the rotating shaft (4), and the pulley (5) is symmetrically located on the left and right sides of the rear outer side of the mixing drum (1).

3. The raw material mixing device for sand core manufacturing according to claim 2, characterized in that: A connecting belt (6) is provided on the outside of the pulley (5), and a motor (7) is connected to the rear end of the pulley (5) on the right side of the outside of the mixing drum (1), and a support frame (8) is installed below the motor (7), and the support frame (8) is directly placed on the ground.

4. The raw material mixing device for sand core manufacturing according to claim 2, characterized in that: A hole (9) is provided inside the rotating plate (2), and a rotating rod (10) is provided inside the hole (9).

5. The raw material mixing device for sand core manufacturing according to claim 1, characterized in that: A sliding groove provided inside the rotating disk (12) is in sliding contact with a toggle rod (15), a sector block (14) is installed on the upper left side of the toggle rod (15), and a motor (7) is connected to the top of the toggle rod (15).

6. The raw material mixing device for sand core manufacturing according to claim 5, characterized in that: The sector block (14) and the fixed block (13) are slidably connected, and the fixed block (13) is installed at an equal angle on the outside of the rotating disk (12).

7. The raw material mixing device for sand core manufacturing according to claim 4, characterized in that: An electric telescopic rod (16) is fixedly mounted on the bottom of the rotating rod (10), a protective hose (17) is arranged on the outside of the electric telescopic rod (16), and a push plate (18) is mounted on the output end of the electric telescopic rod (16).

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