Sand mold 3D printing sand adding and filtering mechanism

Abstract

The sand mold 3D printing sand adding and filtering mechanism comprises a filtering assembly, and the filtering assembly comprises a shell, a motor, a cam, a supporting plate, a sliding rod, a spring, a limiting block, a filtering plate, a dust collecting cover, an exhaust pipe, an induced draft fan, a filter and an exhaust pipe. A motor is installed on the front surface of the shell, an output shaft of the motor is fixedly connected with a cam, and supporting plates are symmetrically and fixedly connected to the inner side wall of the shell. The motor drives the cam to rotate, extrudes the filter plate and enables the spring to stretch out and draw back to drive the filter plate to move up and down, so that sand grains and impurities on the surface of the filter plate move towards the two sides along the filter plate, the sand grains fall down through the filter holes in the moving process, and the impurities are sent out from the two sides of the shell. Workers do not need to regularly clean impurities on the surface of the filtering plate, operation is easy and convenient, meanwhile, raised dust generated in the filtering process is collected through the draught fan and the dust collecting cover, the number of raised dust in air is reduced, and the environment is protected.

Description

Technical field:

[0001] The utility model relates to a filtering mechanism, in particular to a sand-type 3D printing sand-adding filtering mechanism, and belongs to the technical field of sand-type 3D printing. Background technology:

[0002] Sand mold 3D printing technology is a technology that uses 3D printing technology to manufacture sand molds. Sand molds are molds used to cast metal parts. 3D printing technology can be used to manufacture complex and high-precision sand molds. Sand mold 3D printing technology has many advantages, such as short manufacturing cycle, low cost, and high precision. Compared with the traditional sand mold manufacturing process, sand mold 3D printing technology does not require the production of wooden or metal molds, saving a lot of time and cost. At the same time, 3D printing technology can realize the manufacture of sand molds with complex shapes and high precision, improving the quality and precision of cast parts.

[0003] Sand mold 3D printing sand filtering mechanism is an important component used in sand mold 3D printing equipment. Its main function is to filter the added sand particles to ensure the quality and accuracy of the sand mold. The existing sand mold 3D printing sand filtering mechanism requires staff to regularly clean the impurities on the surface of the filter plate when filtering the sand particles. The operation is relatively cumbersome. At the same time, it is easy to generate more dust during the filtration process, which pollutes the environment and affects the health of the staff. Therefore, a sand mold 3D printing sand filtering mechanism is proposed. Utility model content:

[0004] The purpose of the utility model is to provide a sand mold 3D printing sand adding and filtering mechanism to solve one of the problems raised in the above background technology.

[0005] The utility model is implemented by the following technical solutions: a sand-type 3D printing sand-adding filter mechanism, including a filter assembly, the filter assembly including a housing, a motor, a cam, a support plate, a slide bar, a spring, a limit block, a filter plate, a dust hood, an exhaust pipe, an induced draft fan, a filter and an exhaust pipe;

[0006] A motor is installed on the front surface of the shell, and the output shaft of the motor is fixedly connected to the cam; the inner side wall of the shell is symmetrically fixedly connected to a support plate; the inner side wall of the support plate is slidably connected to a sliding rod; the outer side wall of the sliding rod is sleeved with a spring; the bottom end of the sliding rod is fixedly connected to a limiting block; the top end of the sliding rod is fixedly connected to a filter plate; two dust collecting hoods are symmetrically fixedly connected to the inner side wall of the shell; one side of the dust collecting hood is connected to an exhaust pipe; one end of the exhaust pipe is installed with an induced draft fan; a filter is installed on the rear surface of the induced draft fan; the top of the filter is connected to an exhaust pipe.

[0007] As a further preferred embodiment of the present technical solution: the cam is rotatably connected to the inner wall of the shell, and the cam is arranged on the top of the filter plate.

[0008] As a further preferred embodiment of the present technical solution: filter holes are evenly formed on the upper surface of the filter plate.

[0009] As a further preferred embodiment of the present technical solution: a material storage assembly is provided on the top of the filter assembly, and the material storage assembly includes a silo, a feed inlet and a discharge port;

[0010] The top of the silo is provided with a feed inlet, and the bottom of the silo is provided with a discharge outlet.

[0011] As a further preferred embodiment of the present technical solution: the silo is fixedly connected to the top of the shell.

[0012] As a further preferred embodiment of the present technical solution: a discharge port gate is installed at the bottom of the discharge port.

[0013] As a further preferred embodiment of the technical solution: a conveying assembly is provided at the bottom of the filter assembly, and the conveying assembly includes a base and a conveyor belt;

[0014] A conveyor belt is installed on the inner side wall of the base.

[0015] As a further preferred embodiment of the present technical solution: the base is fixedly connected to the bottom of the shell.

[0016] The advantages of the utility model are as follows: the utility model drives the cam to rotate through a motor, squeezes the filter plate and causes the spring to expand and contract, thereby driving the filter plate to move up and down, so that the sand and impurities on the surface of the filter plate move along the filter plate to both sides thereof. During the movement, the sand falls through the filter holes, and the impurities are sent out from both sides of the shell. There is no need for staff to regularly clean the impurities on the surface of the filter plate. The operation is simple and convenient. At the same time, the dust generated during the filtration process is collected by the fan and the dust collecting hood, thereby reducing the amount of dust in the air and protecting the environment. Description of the drawings:

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the dust collecting hood structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the filter plate structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0023] In the figure: 10, material storage component; 11, silo; 12, feed port; 13, discharge port; 20, filter component; 21, shell; 22, motor; 23, cam; 24, support plate; 25, slide bar; 26, spring; 27, limit block; 28, filter plate; 29, dust hood; 210, exhaust duct; 211, induced draft fan; 212, filter; 213, exhaust duct; 30, conveying component; 31, base; 32, conveyor belt. Specific implementation method:

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] Example

[0026] See also Figure 1-5 , the utility model provides a technical solution: a sand mold 3D printing sand adding filter mechanism, including a filter assembly 20, the filter assembly 20 includes a housing 21, a motor 22, a cam 23, a support plate 24, a slide bar 25, a spring 26, a limit block 27, a filter plate 28, a dust collecting cover 29, an exhaust pipe 210, an induced draft fan 211, a filter 212 and an exhaust pipe 213;

[0027] A motor 22 is installed on the front surface of the shell 21, and the output shaft of the motor 22 is fixedly connected to the cam 23. The inner side wall of the shell 21 is symmetrically fixedly connected with a support plate 24, and the inner side wall of the support plate 24 is slidably connected with a slide rod 25. The outer side wall of the slide rod 25 is sleeved with a spring 26, and the bottom end of the slide rod 25 is fixedly connected to a limiting block 27, and the top of the slide rod 25 is fixedly connected to a filter plate 28. Two dust collecting hoods 29 are symmetrically fixedly connected to the inner side wall of the shell 21, and one side of the dust collecting hood 29 is connected to an exhaust pipe 210, and one end of the exhaust pipe 210 is installed with an induced draft fan 211, and the rear surface of the induced draft fan 211 is installed with a filter 212, and the top of the filter 212 is connected with an exhaust pipe 213. The dust generated during the filtration process is collected by the induced draft fan 211 and the dust collecting hood 29, and the dust is processed by the filter 212, so as to reduce the amount of dust in the air and protect the environment.

[0028] In this embodiment, specifically: the cam 23 is rotatably connected to the inner wall of the shell 21, and the cam 23 is set on the top of the filter plate 28. The cam 23 is driven to rotate by the motor 22, squeezing the filter plate 28 and causing the spring 26 to expand and contract, driving the filter plate 28 to move up and down, so that the sand and impurities on the surface of the filter plate 28 move along the filter plate 28 to both sides thereof. During the movement, the sand falls through the filter holes, and the impurities are sent out from both sides of the shell 21.

[0029] In this embodiment, specifically: the upper surface of the filter plate 28 is evenly provided with filter holes, and the size of the filter holes can be adjusted according to printing requirements.

[0030] In this embodiment, specifically: a material storage assembly 10 is disposed on the top of the filter assembly 20, and the material storage assembly 10 includes a material bin 11, a material inlet 12 and a material outlet 13;

[0031] A feed port 12 is disposed at the top of the silo 11 , and a discharge port 13 is disposed at the bottom of the silo 11 . The feed port 12 is used to add sand particles into the silo 11 .

[0032] In this embodiment, specifically: the silo 11 is fixedly connected to the top of the shell 21, and the silo 11 is used to store sand.

[0033] In this embodiment, specifically: a gate is installed at the bottom of the discharge port 13, and the gate is used to control the opening and closing of the discharge port 13.

[0034] In this embodiment, specifically: a conveying assembly 30 is disposed at the bottom of the filter assembly 20, and the conveying assembly 30 includes a base 31 and a conveying belt 32;

[0035] A conveyor belt 32 is installed on the inner side wall of the base 31 , and qualified sand particles are transported to the printing device through the conveyor belt 32 .

[0036] In this embodiment, specifically: the base 31 is fixedly connected to the bottom of the housing 21, and the base 31 is used to support the sand filter.

[0037] Working principle or structural principle: When in use, sand is stored inside the silo 11. When sand needs to be added, the gate at the bottom of the discharge port 13 is opened, and the sand falls on the filter plate 28. The motor 22 drives the cam 23 to rotate, squeezes the filter plate 28 and causes the spring 26 to expand and contract, driving the filter plate 28 to move up and down, so that the sand and impurities on the surface of the filter plate 28 move along the filter plate 28 to both sides. During the movement, the sand falls through the filter holes, and the impurities are sent out from both sides of the shell 21. There is no need for staff to regularly clean the impurities on the surface of the filter plate 28. The operation is simple and convenient. At the same time, the dust generated during the filtration process is collected by the induced draft fan 211 and the dust hood 29 to reduce the amount of dust in the air and protect the environment. After the sand is filtered, the qualified sand is transported to the printing equipment through the conveyor belt 32.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand-adding and filtering mechanism for sand mold 3D printing, comprising a filtering assembly (20), characterized in that: The filter assembly (20) comprises a housing (21), a motor (22), a cam (23), a support plate (24), a slide rod (25), a spring (26), a stop block (27), a filter plate (28), a dust collecting hood (29), an exhaust pipe (210), an induced draft fan (211), a filter (212) and an exhaust pipe (213); A motor (22) is installed on the front surface of the shell (21), and the output shaft of the motor (22) is fixedly connected to the cam (23). The inner side wall of the shell (21) is symmetrically fixedly connected to a support plate (24), and the inner side wall of the support plate (24) is slidably connected to a slide rod (25). The outer side wall of the slide rod (25) is sleeved with a spring (26). The bottom end of the slide rod (25) is fixedly connected to a limit block (27), and the top end of the slide rod (25) is fixedly connected to a filter plate (28). The inner side wall of the shell (21) is symmetrically fixedly connected to two dust collecting hoods (29), one side of the dust collecting hood (29) is connected to an exhaust pipe (210), one end of the exhaust pipe (210) is installed with an induced draft fan (211), a filter (212) is installed on the rear surface of the induced draft fan (211), and the top of the filter (212) is connected to an exhaust pipe (213).

2. A sand-type 3D printing sand-adding and filtering mechanism according to claim 1, characterized in that: The cam (23) is rotatably connected to the inner wall of the housing (21), and the cam (23) is arranged on the top of the filter plate (28).

3. A sand-type 3D printing sand-adding and filtering mechanism according to claim 2, characterized in that: The upper surface of the filter plate (28) is evenly provided with filter holes.

4. A sand-type 3D printing sand-adding and filtering mechanism according to claim 1, characterized in that: A material storage assembly (10) is arranged on the top of the filtering assembly (20), and the material storage assembly (10) comprises a material bin (11), a material inlet (12) and a material outlet (13); The top of the silo (11) is provided with a feed inlet (12), and the bottom of the silo (11) is provided with a discharge outlet (13).

5. A sand-type 3D printing sand-adding and filtering mechanism according to claim 4, characterized in that: The silo (11) is fixedly connected to the top of the shell (21).

6. A sand-type 3D printing sand-adding and filtering mechanism according to claim 4, characterized in that: A gate is installed at the bottom of the discharge port (13).

7. A sand-type 3D printing sand-adding and filtering mechanism according to claim 1, characterized in that: A conveying assembly (30) is provided at the bottom of the filtering assembly (20), and the conveying assembly (30) comprises a base (31) and a conveying belt (32); A conveyor belt (32) is installed on the inner side wall of the base (31).

8. A sand-type 3D printing sand-adding and filtering mechanism according to claim 7, characterized in that: The base (31) is fixedly connected to the bottom of the shell (21).

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