A screening device for resin sand production

Abstract

The utility model belongs to screening equipment technical field especially is a kind of screening device for resin sand production, including shell body, shell body inside is provided with screening subassembly and air guide plate, air guide plate is located screening subassembly side, screening subassembly includes the screening net for screening resin sand, the screening net rotation is set in shell body inside, and screening net is inclined 15 ° movement towards both sides, air guide plate is opened with several air outlets towards the side of screening net, several the air outlet all are located screening net above and are inclined evenly distributed, and the screening net inclined state is parallel with several air outlet distribution position;Through the cooperation of screening subassembly and air outlet etc. Component, the wind power of blowing can correspond with the movement track of resin sand, so that wind power can continuously act on resin sand, and because resin sand will produce movement, make dust exposure opportunity increase, to improve the blowing effect of dust.

Description

Technical Field

[0001] This utility model belongs to the field of screening equipment technology, specifically relating to a screening device for resin sand production. Background Technology

[0002] Screening during resin sand production is a crucial step in the foundry industry for processing resin sand. It is mainly used to separate resin sand that has clumps, impurities, or different particle sizes to improve its reuse efficiency. Since resin sand is prone to mixing with dust and other impurities during use or recycling, affecting the quality of castings, current screening devices use air blowing to remove the dust. However, in practical applications, because the dust is mixed in with the resin sand, the airflow cannot directly act on the dust, resulting in poor separation of dust and resin sand. Utility Model Content

[0003] This invention provides a screening device for resin sand production, which has the feature of blowing away dust mixed in with the resin sand.

[0004] This utility model provides the following technical solution: it includes an outer shell, a screening component and an air guide plate are arranged inside the outer shell, the air guide plate is located on one side of the screening component, the screening component includes a sieve screen for screening resin sand, the sieve screen is rotatably arranged inside the outer shell, and the sieve screen moves at an angle of 15° to both sides, the air guide plate has a plurality of air outlets on the side facing the sieve screen, the plurality of air outlets are all located above the sieve screen and are evenly distributed at an angle, and the angle of the sieve screen is parallel to the distribution position of the plurality of air outlets.

[0005] The outer casing contains a collection box located below the screening screen.

[0006] The screening component includes a blocking plate and a fitting arc surface, wherein the fitting arc surface is disposed on the side of the blocking plate facing the screening mesh.

[0007] The outer casing has an installation compartment on one side, and an air guide box is installed inside the installation compartment. The air guide box is connected to the air outlet.

[0008] The outer shell has a dust collection chamber installed on the other side, and the outer shell has an inlet on the side facing the dust collection chamber. The outer shell is connected to the dust collection chamber through the inlet.

[0009] The beneficial effects of this utility model are: by cooperating with components such as the screening component and the air outlet, the blown air force can correspond to the movement trajectory of the resin sand, so that the air force can continuously act on the resin sand. Furthermore, since the resin sand will move, the exposure of dust will increase, thereby improving the dust removal effect.

[0010] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0013] Figure 3 This is a three-dimensional structural diagram of the screening component in this utility model;

[0014] Figure 4 This is a three-dimensional structural diagram of the air-exhaust plate in this utility model;

[0015] Figure 5 for Figure 2 Enlarged diagram of point A in the middle.

[0016] In the diagram: 1. Outer shell; 11. Collection box; 2. Screening component; 21. Screening mesh; 22. Sealing plate; 23. Fitting arc surface; 3. Air guide plate; 31. Air outlet; 4. Installation chamber; 41. Air guide box; 5. Dust collection chamber; 51. Impurity inlet. Detailed Implementation

[0017] Please see Figures 1-5 The present invention provides the following technical solution: it includes an outer shell 1, a screening component 2 and an air guide plate 3 are arranged inside the outer shell 1, the air guide plate 3 is located on one side of the screening component 2, the screening component 2 includes a sieve screen 21 for screening resin sand, the sieve screen 21 is rotatably arranged inside the outer shell 1, and the sieve screen 21 moves at an angle of 15° to both sides, the air guide plate 3 has a plurality of air outlets 31 on the side facing the sieve screen 21, the plurality of air outlets 31 are all located above the sieve screen 21 and are evenly distributed at an angle, and the angle of the sieve screen 21 is parallel to the distribution position of the plurality of air outlets 31.

[0018] In this implementation scheme: the outer casing 1 is used to support and connect the various components. The screening component 2, located inside the outer casing 1, is used to screen the resin sand. During the screening process, the resin sand is located above the screening screen 21. One side of the screening screen 21 is connected to a servo motor or other driving component. The driving component drives the screening screen 21 to tilt and rotate. When the screening screen 21 tilts and rotates, the resin sand above the screening screen 21 rolls back and forth on both sides of the screening screen 21 to prevent some resin sand from failing to contact the screen holes inside the screening screen 21. The maximum tilt angle on the left and right sides of the screening screen 21 is set to 15° to prevent the screening screen 21 from tilting too much, which would cause the resin sand above the screening screen 21 to roll too fast and have too short a contact time with the screen holes, thus ensuring the screening effect of the resin sand. The air guide plate 3 is used to blow away the dust mixed in with the resin sand. The airflow introduced into the air intake plate 3 is discharged through the air outlet 31. The air outlet 31 is divided into two parts and is inclined. One part is level with one side of the screening screen 21 when it is rotated to an inclination of 15°, and the other part is level with the other side of the screening screen 21 when it is rotated to an inclination of 15°. This allows the resin sand that has accumulated on the higher side of the screening screen 21 to roll towards the lower side of the screening screen 21 when the screening screen 21 is tilted to its maximum angle. Since the air outlet 31 is located above the screening screen 21, that is, the position of the air outlet 31 corresponds to the position of the resin sand above the screening screen 21, and since the inclined air outlet 31 corresponds to the inclination angle of the screening screen 21, the airflow blown out from the air outlet 31 can stably act on the inside of the resin sand. As the resin sand rolls above the screening screen 21, the contact between the airflow and the dust mixed in with the resin sand increases, thereby ensuring the dust removal effect.

[0019] A collection box 11 is provided inside the outer shell 1, and the collection box 11 is located below the screening screen 21. The collection box 11 inside the outer shell 1 is located below the screening screen 21, so that small resin sand particles passing through the screen holes inside the screening screen 21 will fall into the collection box 11, while large resin sand particles will remain above the screening screen 21, so as to complete the screening of resin sand.

[0020] The screening component 2 includes a blocking plate 22 and a conforming arc surface 23. The conforming arc surface 23 is located on the side of the blocking plate 22 facing the screening screen 21. The blocking plate 22 is used to block the resin sand above the screening screen 21. The sealing plate 22 has a conforming arc surface 23 on the side facing the screening screen 21. When the screening screen 21 is kept horizontal, it is located in the middle of the conforming arc surface 23. Due to the setting of the conforming arc surface 23, the screening screen 21 can continuously adhere to the blocking plate 22 during rotation, thereby preventing the resin sand above the screening screen 21 from falling down from both sides of the screening screen 21 during rotation, ensuring that the resin sand can stably pass through the screening screen 21 for screening.

[0021] An installation chamber 4 is installed on one side of the outer casing 1. An air guide box 41 is installed inside the installation chamber 4. The air guide box 41 is connected to the air outlet 31. The installation chamber 4 installed on one side of the outer casing 1 is used to install the drive components and the fan. The air guide box 41 is installed inside the installation chamber 4. The output end of the fan is connected to the air guide box 41. The air guide box 41 is connected to the air outlet 31, so that the air can be blown out from the air outlet 31 to complete the blowing of dust mixed in the resin sand above the screening screen 21.

[0022] A dust collection chamber 5 is installed on the other side of the outer shell 1. An inlet 51 is provided on the side of the outer shell 1 facing the dust collection chamber 5. The outer shell 1 is connected to the dust collection chamber 5 through the inlet 51. The dust collection chamber 5 installed on one side of the outer shell 1 is used to collect the blown dust. The installation chamber 4 and the dust collection chamber 5 are respectively installed on both sides of the outer shell 1. When the air force generated by the fan installed inside the installation chamber 4 is discharged through the air outlet 31, the air outlet 31 can blow the dust toward the dust collection chamber 5, so that the dust can enter the dust collection chamber 5 through the inlet 51 for collection.

[0023] The working principle and usage process of this utility model are as follows: Workers can feed resin sand into the outer shell 1 through the hopper above the outer shell 1. The resin sand inside the outer shell 1 will fall onto the screen 21. Then, medical personnel can activate the drive unit and fan installed inside the installation chamber 4. The output end of the drive unit is connected to one side of the screen 21, causing the screen 21 to rotate left and right inside the outer shell 1. When one side of the screen 21 is tilted to its highest point, the angle between the screen 21 and the horizontal plane is 15°. At this time, the resin sand above the screen 21 will roll from the higher side of the screen 21 to the lower side. The distribution angle of the air outlet 31 is the same as the tilt angle of the screening screen 21, and the air outlet 31 is located above the screening screen 21. This allows the air force to directly act on the corresponding position of the resin sand movement trajectory when the air force passes through the air guide box 41 and the air guide plate 3 and is blown out through the air outlet 31. Since the resin sand rolls above the screening screen 21, the air force blown out of the air outlet 31 has a greater chance of contact with the dust mixed in the resin sand, so as to ensure the dust removal effect. The dust that is blown out will enter the dust collection chamber 5 through the impurity inlet 51 for collection, while the screened resin sand will fall down from the screen holes inside the screening screen 21 and enter the collection box 11.

Claims

1. A screening device for resin sand production, comprising an outer shell (1), characterized in that: The inner side of the outer shell (1) is provided with a screening component (2) and an air guide plate (3). The air guide plate (3) is located on one side of the screening component (2). The screening component (2) includes a sieve screen (21) for screening resin sand. The sieve screen (21) is rotatably disposed on the inner side of the outer shell (1) and the sieve screen (21) moves at an angle of 15° to both sides. The air guide plate (3) has several air outlets (31) on the side facing the sieve screen (21). The several air outlets (31) are all located above the sieve screen (21) and are evenly distributed at an angle. The angle of the sieve screen (21) is parallel to the distribution position of the several air outlets (31).

2. The screening device for resin sand production according to claim 1, characterized in that: The outer shell (1) is provided with a collection box (11) located below the screening screen (21).

3. The screening device for resin sand production according to claim 1, characterized in that: The screening component (2) includes a blocking plate (22) and a fitting arc surface (23), the fitting arc surface (23) being disposed on the side of the blocking plate (22) facing the screening mesh (21).

4. The screening device for resin sand production according to claim 1, characterized in that: An installation chamber (4) is installed on one side of the outer shell (1), and an air guide box (41) is installed inside the installation chamber (4). The air guide box (41) is connected to the air outlet (31).

5. A screening device for resin sand production according to claim 1, characterized in that: A dust collection chamber (5) is installed on the other side of the outer shell (1). An inlet (51) is provided on the side of the outer shell (1) facing the dust collection chamber (5). The outer shell (1) is connected to the dust collection chamber (5) through the inlet (51).

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