Precoated sand powder screening device

Abstract

The utility model discloses a precoated sand powder screening device, which relates to the field of precoated sand processing, and comprises a mounting seat, the inner wall of the mounting seat is fixedly connected with a positioning rod, the outer wall of the positioning rod is fixedly connected with a motor, and one end of the motor is provided with a transmission wheel. The sand hopper is clamped and fixed through the sand conveying pipe, when the device is used, precoated sand powder can be conveniently and rapidly fed through the arrangement of the sand conveying pipe and the sand hopper, the usability of the device is improved, the screen drum is clamped and fixed through the arrangement of the connecting disc, when the device is used, the screen drum is provided with a plurality of filter layers, and the filter efficiency is improved. According to the precoated sand screening device, precoated sand with different particle sizes can be screened out step by step conveniently, the usability of the device is improved, the screen drum plays a role in moving the connecting frame, and when the device is used, the connecting frame is arranged so that the steel brush can be connected conveniently, the cleaning function can be added, the blocking and maintenance cost can be reduced, and the usability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of coated sand processing, in particular to a coated sand powder screening device. Background Art

[0002] Coated sand is molding sand or core sand with a solid resin film coated on the surface of sand grains before molding, and is used for steel castings and iron castings. During the production process, it is necessary to screen the coated sand. Therefore, a coated sand powder screening device is required.

[0003] In the prior art, a patent document with the publication number of CN209477217U provides a coated sand screening device. A fixed seat is fixedly installed at the lower end of the inner cavity of the left end of the support plate. A servo motor is fixedly installed on the upper surface of the fixed seat. A rotating rod is fixedly installed on the output shaft of the servo motor. Two symmetrically arranged driving baffles are fixedly installed on the upper surface of the support plate. Two groups of symmetrically arranged connecting blocks are fixedly installed on the front and back surfaces of the support plate respectively. Moving brackets are hinged on the opposite sides of the connecting blocks. Through the shock absorption seat, it is convenient and effective to reduce the rigid collision generated by the support plate during operation, increase the buffer force, thereby reducing the overall vibration of the device, protecting the device, increasing the service life of the device, reducing the cost. Then, through the cooperation of the fixed frame and the rotating plate, the rotating plate can conveniently and effectively turn the coated sand to cool the coated sand scattered on the conveyor belt, protecting the staff. However, when the technology of CN209477217U is operating, it is not convenient to screen coated sand powder with different particle sizes, not convenient to clean the device parts, easy to cause blockage, and not convenient to quickly feed the coated sand powder. Therefore, a coated sand powder screening device is urgently needed. Summary of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a coated sand powder screening device to solve the problems that the existing coated sand powder screening device is not convenient to screen coated sand powder with different particle sizes, not convenient to clean the device parts, easy to cause blockage, and not convenient to quickly feed the coated sand powder when in use.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A coated sand powder screening device, including a mounting base, the inner walls of the mounting base are fixedly connected with positioning rods, the outer walls of the positioning rods are fixedly connected with motors, one end of the motors is provided with transmission wheels, the outer walls of the transmission wheels are provided with connecting disks, the inner walls of the connecting disks are in contact with rotating beads, the outer walls of the rotating beads are provided with sand conveying pipes, and the upper ends of the sand conveying pipes are provided with sand hoppers.

[0006] A collection box is installed on the outer wall of the mounting base, a screening cylinder is installed on one side of the connecting disk, and fixing sleeves are fixedly connected to the outer walls of the screening cylinder.

[0007] A connecting frame is installed on the inner wall of the sieve cylinder, and a steel brush is arranged on the outer wall of the connecting frame.

[0008] Preferably, the positioning rod is threadedly connected to the motor, and the positioning rods are symmetrically arranged with respect to the central axis of the motor.

[0009] Preferably, the rotating beads are movably connected to the sand conveying pipe, and the rotating beads are arranged in an annular array along the inner wall of the sand conveying pipe.

[0010] Preferably, the sand conveying pipe is snap-fitted to the sand hopper, and the inner diameter of the sand conveying pipe is larger than the outer diameter of the sand hopper.

[0011] Preferably, the sieve cylinder is snap-fitted to the connecting disc, and the inner wall of the connecting disc is designed with openings.

[0012] Preferably, the sieve cylinder is threadedly connected to the fixing sleeve, and the fixing sleeves are arranged in an annular array on the outer wall of the sieve cylinder.

[0013] Preferably, the connecting frame is movably connected to the sieve cylinder, and the inner wall of the sieve cylinder is designed with openings.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model plays a role of snap-fixing the sand hopper through the arrangement of the sand conveying pipe. When using the device, the arrangement of the sand conveying pipe and the sand hopper facilitates the rapid feeding of the coated sand powder, increasing the usability of the device;

[0016] 2. The present utility model plays a role of snap-fixing the sieve cylinder through the arrangement of the connecting disc. When using the device, the sieve cylinder is provided with multiple filtering levels, facilitating the step-by-step screening of coated sand with different particle sizes, increasing the usability of the device;

[0017] 3. The present utility model plays a role of moving the connecting frame through the arrangement of the sieve cylinder. When using the device, the arrangement of the connecting frame facilitates the connection of the steel brush, adding a cleaning function, reducing blockage and maintenance costs, and increasing the usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front elevation view of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the present utility model in the front elevation side view;

[0020] Figure 3 is the structural schematic diagram of the sieve cylinder part of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the combination of the mounting seat, rotating beads and sand conveying pipe parts of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the combination of the connecting frame and the steel brush parts of the present utility model.

[0023] In the figure: 1. Mounting seat; 2. Positioning rod; 3. Motor; 4. Driving wheel; 5. Connecting disk; 6. Rotating bead; 7. Sand conveying pipe; 8. Sand hopper; 9. Collection box; 10. Sieve cylinder; 11. Fixed sleeve; 12. Connecting frame; 13. Steel brush. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0025] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0026] Please refer to Figures 1-5 , a coated sand powder screening device, including a mounting seat 1. The inner walls of the mounting seat 1 are fixedly connected with positioning rods 2. The outer walls of the positioning rods 2 are fixedly connected with motors 3. The positioning rods 2 are threadedly connected with the motors 3, and the positioning rods 2 are symmetrically arranged with the central axis of the motors 3. One end of the motor 3 is provided with a driving wheel 4. The outer wall of the driving wheel 4 is provided with a connecting disk 5. The inner wall of the connecting disk 5 abuts against a rotating bead 6. The outer wall of the rotating bead 6 is provided with a sand conveying pipe 7. The rotating bead 6 is movably connected with the sand conveying pipe 7, and the rotating bead 6 is arranged in a circular array on the inner wall of the sand conveying pipe 7. The upper end of the sand conveying pipe 7 is provided with a sand hopper 8. The sand conveying pipe 7 is snap-fitted with the sand hopper 8, and the inner diameter of the inner wall of the sand conveying pipe 7 is larger than the outer diameter of the sand hopper 8. By providing the sand conveying pipe 7, the sand hopper 8 is snap-fixed. When using the device, the arrangement of the sand conveying pipe 7 and the sand hopper 8 facilitates the rapid feeding of the coated sand powder, increasing the usability of the device.

[0027] Please refer to Figures 1-5 , a coated sand powder screening device. The outer wall of the mounting seat 1 is provided with a collection box 9. One side of the connecting disk 5 is provided with a sieve cylinder 10. The sieve cylinder 10 is snap-fitted with the connecting disk 5, and the inner wall of the connecting disk 5 is of an open-hole design. The outer walls of the sieve cylinder 10 are fixedly connected with fixed sleeves 11. The sieve cylinder 10 is threadedly connected with the fixed sleeves 11, and the fixed sleeves 11 are arranged in a circular array on the outer wall of the sieve cylinder 10. By providing the connecting disk 5, the sieve cylinder 10 is snap-fixed. When using the device, the sieve cylinder 10 is provided with multiple filtering levels, facilitating the gradual screening of coated sand with different particle sizes, increasing the usability of the device.

[0028] Please refer to Figures 1-5, a screening device for coated sand powder. A connecting frame 12 is installed on the inner wall of the screening cylinder 10. The connecting frame 12 is movably connected to the screening cylinder 10, and the inner wall of the screening cylinder 10 is designed with openings. A steel brush 13 is arranged on the outer wall of the connecting frame 12. By setting the screening cylinder 10 to act on the connecting frame 12, when using the device, the connecting frame 12 is convenient for connecting the steel brush 13, adding a cleaning function, reducing blockage and maintenance costs, and increasing the usability of the device.

[0029] Working principle: When in use, take out the device and place it at a designated position. Then, thread-fix the motor 3 with the positioning rod 2. Then, snap-fix the sand delivery pipe 7 to the sand hopper 8. Then, snap-fix the screening cylinder 10 to the connecting plate 5. Then, thread-fix the fixing sleeve 11 to the screening cylinder 10. Then, pour the coated sand powder upside down into the sand hopper 8. Then, turn on the motor 3. The motor 3 drives the transmission wheel 4 to rotate. The transmission wheel 4 rotates the connecting plate 5. The screening cylinder 10 screens the coated sand powder to obtain coated sand with different particle sizes. Finally, take out the coated sand powder that has been screened into the collection box 9. Then, pull the connecting frame 12 to clean the screening cylinder 10 with the steel brush 13. In this way, the use process of the device is completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of simplifying the description of the present invention and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection content of the present invention.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coated sand powder screening device, comprising a mounting seat (1), characterized in that: The inner wall of the mounting seat (1) is fixedly connected to a positioning rod (2), the outer wall of the positioning rod (2) is fixedly connected to a motor (3), one end of the motor (3) is mounted with a transmission wheel (4), the outer wall of the transmission wheel (4) is mounted with a connecting plate (5), the inner wall of the connecting plate (5) is in contact with a rotating bead (6), the outer wall of the rotating bead (6) is mounted with a sand conveying pipe (7), and the upper end of the sand conveying pipe (7) is mounted with a sand bucket (8); A collecting box (9) is installed on the outer wall of the mounting seat (1), a screen cylinder (10) is installed on one side of the connecting plate (5), and a fixing sleeve (11) is fixedly connected to the outer wall of the screen cylinder (10); A connecting frame (12) is installed on the inner wall of the screen cylinder (10), and a steel brush (13) is arranged on the outer wall of the connecting frame (12).

2. The coated sand powder screening device according to claim 1, characterized in that: The positioning rod (2) is threadedly connected to the motor (3), and the positioning rod (2) is symmetrically arranged with respect to the central axis of the motor (3).

3. The coated sand powder screening device according to claim 1, characterized in that: The rotating beads (6) are movably connected to the sand conveying pipe (7), and the rotating beads (6) are arranged in a ring array on the inner wall of the sand conveying pipe (7).

4. The coated sand powder screening device according to claim 1, characterized in that: The sand conveying pipe (7) is connected to the sand bucket (8) by snap-fitting, and the inner wall diameter of the sand conveying pipe (7) is larger than the outer wall diameter of the sand bucket (8).

5. The coated sand powder screening device according to claim 1, characterized in that: The sieve cylinder (10) is snap-connected to the connecting disk (5), and the inner wall of the connecting disk (5) is of open-hole design.

6. The coated sand powder screening device according to claim 1, characterized in that: The sieve cylinder (10) is threadedly connected to the fixing sleeve (11), and the fixing sleeve (11) is arranged in a ring array on the outer wall of the sieve cylinder (10).

7. The coated sand powder screening device according to claim 1, characterized in that: The connecting frame (12) is movably connected to the screen drum (10), and the inner wall of the screen drum (10) is of open-hole design.

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