Sand injection device of core shooter

Abstract

The utility model discloses a sand injection device of a core shooter, which comprises a shooting tube sleeve I, a cooling fan, a sand injection hopper and radiating fins, a connecting ring is arranged at the upper end of the sand injection hopper, an insertion hole is formed in the inner wall of the connecting ring, an insertion block is mounted in the insertion hole, a detachable hopper film is arranged at the end part of the insertion block, and the detachable hopper film is connected with the sand injection hopper. A sand outlet pipe is arranged at the bottom end of the sand injection hopper, and the cooling fins are arranged on the surface of the sand outlet pipe. According to the sand injection device of the core shooter, through clamping connection between the insertion hole and the insertion block, the detachable hopper film can be installed in the sand injection hopper, the sand injection hopper can be protected, molding sand is effectively prevented from making contact with the inner wall of the sand injection hopper, meanwhile, the detachable hopper film is convenient to detach, workers can replace or clean the detachable hopper film conveniently, and the sand injection device of the core shooter is convenient to use. The cleanliness of the detachable bucket film is guaranteed, the fluidity of air in the sand outlet pipe protective cover can be improved through the multiple micro fans, and air cooling work is conducted on the sand outlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of core shooting machines, in particular to a sand injection device of a core shooting machine. Background Art

[0002] Injection type Styling Machine It uses compressed air to molding sand Inject evenly Sand box Pre-compact, then apply pressure to compact. Commonly used are vertical parting without box Injection molding machine The vertical parting flaskless injection molding machine does not use a sand box, and the molding sand is directly injected into the molding chamber with a template. sand mold The dimensional accuracy is high, there are cavities on both sides of the sand box, and the productivity is high, but it is difficult to put the core in, and the quality of the molding sand is strictly required. The horizontal parting and stripping box shot-pressing molding machine uses the sand box for molding. After the sand mold is made, the mold is closed and the box is stripped. It is convenient to put the core in and has high productivity. The sand injection device is an indispensable structure in the core shooting machine. The sand injection device can be used for sand shooting, which can improve the working efficiency of the core shooting machine.

[0003] As shown in the application number: CN201610535889.2, the present invention discloses a sand injection device for a core shooting machine, which is composed of a sand storage hopper and a sand injection control device. The sand injection control device is composed of a fixing mechanism, a sand injection channel, a pressure piston block, a pressure control chamber and an air pressure pipeline. The sand injection channel is tubular, arranged in the middle of the fixing mechanism, and can move up and down in the fixing mechanism; there are two pressure piston blocks, which are fixedly connected to both sides of the sand injection channel and can move up and down in the pressure control chamber; it also includes a closing mechanism, which is composed of a support rod and a closing cover, and the closing cover is provided with a groove that can be engaged with the sand injection channel. The present invention adopts a unique air pressure control method to control the operation of the sand injection device. Since the vertical sand injection method is used to replace the gate plate for sand injection, the jamming or sand leakage is avoided. In addition, since the sand injection control device is arranged outside the sand storage hopper, the sand storage space of the sand storage hopper is avoided to be reduced due to the sand injection control device being arranged inside the sand storage hopper, thereby improving the sand storage and sand injection efficiency.

[0004] Similar to the above application, there are still the following deficiencies:

[0005] When the existing device is injecting sand, the sand injection bucket will be in direct contact with the molding sand. After long-term use, a large amount of molding sand will remain on the inner wall of the sand injection bucket, which will shorten the service life of the sand injection bucket.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and a sand injection device for a core shooting machine is proposed, in order to achieve a more practical purpose. Utility Model Content

[0007] The utility model aims to provide a sand injection device for a core shooting machine to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand injection device for a core shooting machine, comprising a sand injection hopper and a heat sink, a connecting ring is provided at the upper end of the sand injection hopper, and an insertion hole is provided on the inner wall of the connecting ring, an insertion block is installed inside the insertion hole, and a removable hopper film is provided at the end of the insertion block, a sand outlet pipe is provided at the bottom end of the sand injection hopper, and the heat sink is provided on the surface of the sand outlet pipe.

[0009] Furthermore, the insertion hole and the insertion block are snap-fitted and connected, and the shape structure of the detachable bucket membrane is consistent with the shape structure of the sand injection bucket.

[0010] Furthermore, a vibration block is installed on the outer wall of the sand injection hopper, and a connection box is arranged below the sand injection hopper.

[0011] Furthermore, a connection hole is provided in the middle of the connection box, and a micro fan is installed at the upper end of the connection box.

[0012] Furthermore, a sand outlet pipe shield is provided at the bottom end of the connection box, and a water guide pipe is installed on the outer wall of the sand outlet pipe shield.

[0013] Furthermore, a water storage pipe is installed inside the sand outlet pipe shield, and the water storage pipe and the water guide pipe are communicated with each other.

[0014] Furthermore, the water storage pipe is rectangular, and the size of the water storage pipe decreases from top to bottom.

[0015] Compared with the prior art, the beneficial effect of the utility model is that the sand injection device of the core shooting machine adopts a protective structure to avoid direct contact between the molding sand and the sand injection bucket, reducing the wear on the sand injection bucket, and at the same time utilizing the disassembly structure to facilitate the disassembly of the detachable bucket film and ensure the cleanliness of the surface of the detachable bucket film.

[0016] 1. The utility model can install the detachable bucket membrane inside the sand injection bucket through the snap connection between the insertion hole and the insertion block, which can protect the sand injection bucket and effectively prevent the molding sand from contacting the inner wall of the sand injection bucket. At the same time, the detachable bucket membrane is easy to disassemble, which is convenient for the staff to replace or clean the detachable bucket membrane and ensure the cleanliness of the detachable bucket membrane. Multiple micro fans can be used to improve the fluidity of the air inside the sand outlet pipe shield and perform air cooling on the sand outlet pipe.

[0017] 2. The utility model is in direct contact with the sand outlet pipe through the heat sink, which can diffuse the heat of the sand outlet pipe into the surrounding air. The vibration block can provide power to the sand injection hopper, so that the internal molding sand can flow and avoid accumulation. The connection between the water guide pipe and the water storage pipe can make the water indirectly contact the sand outlet pipe shield, thereby absorbing the heat on the sand outlet pipe shield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main three-dimensional structure of a sand injection device of a core shooting machine of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of a sand outlet pipe protective cover of a sand injection device of a core shooting machine of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a sand injection hopper and a sand outlet pipe of a sand injection device of a core shooting machine of the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the top view of the structure of the connection between the sand injection bucket and the detachable bucket membrane of the sand injection device of the core shooting machine.

[0022] In the figure: 1. sand injection bucket; 2. connecting ring; 3. connecting box; 4. connecting hole; 5. sand outlet pipe; 6. micro fan; 7. sand outlet pipe shield; 8. water guide pipe; 9. vibration block; 10. water storage pipe; 11. heat sink; 12. insertion hole; 13. insertion block; 14. removable bucket membrane. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figure 1-Figure 4As shown, a sand injection device of a core shooting machine includes a sand injection hopper 1 and a heat sink 11. A connecting ring 2 is provided at the upper end of the sand injection hopper 1, and an insertion hole 12 is provided on the inner wall of the connecting ring 2. An insertion block 13 is installed inside the insertion hole 12, and a removable hopper film 14 is provided at the end of the insertion block 13. A sand outlet pipe 5 is provided at the bottom end of the sand injection hopper 1, and the heat sink 11 is provided on the surface of the sand outlet pipe 5. The insertion hole 12 and the insertion block 13 are snap-fitted and connected. The removable hopper film 14 is provided at the end of the insertion block 13. The shape and structure are consistent with the shape and structure of the sand injection hopper 1. A vibration block 9 is installed on the outer wall of the sand injection hopper 1, and a connection box 3 is arranged below the sand injection hopper 1. A connection hole 4 is opened in the middle of the connection box 3, and a micro fan 6 is installed on the upper end of the connection box 3. A sand outlet pipe shield 7 is arranged at the bottom end of the connection box 3, and a water guide pipe 8 is installed on the outer wall of the sand outlet pipe shield 7. A water storage pipe 10 is installed inside the sand outlet pipe shield 7, and the water storage pipe 10 is connected with the water guide pipe 8. The water pipe 10 is rectangular in shape, and the size of the water storage pipe 10 decreases from top to bottom. The removable bucket membrane 14 can be installed inside the sand injection bucket 1 through the snap connection between the insertion hole 12 and the insertion block 13, which can protect the sand injection bucket 1 and effectively prevent the molding sand from contacting the inner wall of the sand injection bucket 1. At the same time, the removable bucket membrane 14 is easy to disassemble, which is convenient for the staff to replace or clean the removable bucket membrane 14 and ensure the cleanliness of the removable bucket membrane 14. The flowability of the air inside the sand outlet pipe shield 7 can be improved by using multiple micro fans 6, and the sand outlet pipe 5 can be air-cooled; the heat sink 11 directly contacts the sand outlet pipe 5, and the heat of the sand outlet pipe 5 can be diffused to the surrounding air. The vibration block 9 can provide power to the sand injection bucket 1, so that the internal molding sand can flow and avoid accumulation. The connection between the water guide pipe 8 and the water storage pipe 10 can make the water indirectly contact the sand outlet pipe shield 7, thereby absorbing the heat on the sand outlet pipe shield 7.

[0025] Working principle: When the sand injection device of the core shooting machine is in use, first Figure 1-Figure 4, put the removable bucket film 14 into the sand injection bucket 1, so that the insertion blocks 13 around the removable bucket film 14 enter the insertion holes 12 inside the connecting ring 2 respectively, so that the removable bucket film 14 can be limited, and the sand injection bucket 1 can be protected, effectively preventing the molding sand from contacting the inner wall of the sand injection bucket 1, and then water is introduced from the water pipe 8 into the water storage pipe 10, and the molding sand is poured into the sand injection bucket 1 and ejected from the sand outlet pipe 5. The vibration block 9 can provide power to the sand injection bucket 1, so that the molding sand inside can flow and avoid accumulation. When working, the sand outlet pipe 5 will generate heat. At this time, turning on the micro fan 6 can improve the flow of air inside the sand outlet pipe shield 7. At the same time, the heat sink 11 can diffuse the heat of the sand outlet pipe 5 to the surrounding air. The air will flow outward due to the wind brought by the micro fan 6, and the connection between the water guide pipe 8 and the water storage pipe 10 can make the water indirectly contact the sand outlet pipe shield 7, thereby absorbing the heat on the sand outlet pipe shield 7. After the work is completed, the detachable bucket film 14 is taken out and cleaned to facilitate subsequent recycling.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A sand injection device for a core shooting machine, comprising a sand injection hopper (1) and a heat sink (11), characterized in that: The upper end of the sand injection hopper (1) is provided with a connecting ring (2), and the inner wall of the connecting ring (2) is provided with an insertion hole (12), an insertion block (13) is installed inside the insertion hole (12), and a removable hopper film (14) is provided at the end of the insertion block (13), and a sand outlet pipe (5) is provided at the bottom end of the sand injection hopper (1), and the heat sink (11) is provided on the surface of the sand outlet pipe (5).

2. A sand injection device for a core shooting machine according to claim 1, characterized in that: The insertion hole (12) and the insertion block (13) are connected by snapping, and the shape and structure of the detachable bucket membrane (14) are consistent with the shape and structure of the sand injection bucket (1).

3. A sand injection device for a core shooting machine according to claim 2, characterized in that: A vibration block (9) is installed on the outer wall of the sand injection hopper (1), and a connection box (3) is arranged below the sand injection hopper (1).

4. A sand injection device for a core shooting machine according to claim 3, characterized in that: A connection hole (4) is provided in the middle of the connection box (3), and a micro fan (6) is installed at the upper end of the connection box (3).

5. The sand injection device of a core shooting machine according to claim 3, characterized in that: A sand outlet pipe shield (7) is provided at the bottom end of the connection box (3), and a water guide pipe (8) is installed on the outer wall of the sand outlet pipe shield (7).

6. A sand injection device for a core shooting machine according to claim 5, characterized in that: A water storage pipe (10) is installed inside the sand outlet pipe shield (7), and the water storage pipe (10) and the water guide pipe (8) are communicated with each other.

7. A sand injection device for a core shooting machine according to claim 6, characterized in that: The water storage pipe (10) is rectangular in shape, and the size of the water storage pipe (10) decreases from top to bottom.

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