Sand adding device

Abstract

The utility model discloses a sand adding device which comprises a sand adding box, no less than two filtering structures are arranged on the sand adding box, the sand adding device relates to the technical field of sand adding, and by arranging no less than two filtering structures, the adding of molding sand is not influenced when a filter screen is replaced, the sand adding efficiency is ensured, and the sand adding efficiency is improved. During normal sand adding work, molding sand passes through the filter screen of the filter pipe, the molding sand meeting the size requirement is discharged through the discharging pipe, the molding sand not meeting the requirement is left in the filter pipe, meanwhile, the vibrator works to help the filter screen to filter the molding sand, and the filtering efficiency is improved; when molding sand is added, the corresponding valves and vibrators can be closed, the filter pipes are detached, other filter structures continue to work, and molding sand adding is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of sand adding, in particular to a sand adding device. Background Art

[0002] In the casting work, it is necessary to use a sand adding device to add the molding sand into the sand box. A casting sand adding mechanism with the publication number CN219151491U discloses a feeding channel and a discharging channel. The top of the feeding channel is provided with a feeding hopper, the lower end of the feeding channel is provided with a discharging channel, and clamps A and B are respectively provided between the discharging channel and the feeding channel. The lower end of the feeding channel is provided with a mounting shell, and the interior of the mounting shell is provided with a pull-out plate through a hollow cavity, and a filter screen is provided inside the pull-out plate. The interior of the mounting shell is provided with a hole for facilitating the The feeding port for feeding materials; the structure for screening the casting sand in the process of adding the casting sand is provided to avoid the presence of particles with a particle size of one in the casting sand, so that the casting sand has a better uniformity, which can effectively improve the casting quality, and thus can produce better economic benefits, and is suitable for wide promotion and use; however, in the patent document, only one channel for filtering is provided at the feeding end and the discharging end, and when the filter needs to be maintained, the sand adding work needs to be stopped, which affects the sand adding efficiency. At the same time, when filtering the molding sand, the filter cannot vibrate, resulting in low filtering efficiency and inconvenience in use;

[0003] There may already be technical means to solve the above problems in the prior art, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0004] In order to solve the problems raised in the background technology, the utility model is implemented through the following technical solutions: a sand adding device, comprising a sand adding box, the sand adding box is provided with a filtering structure, and the number of the filtering structures is not less than two;

[0005] The filtering structure includes a valve, which is installed on the lower wall of the sand adding box, an upper connecting pipe is installed at one end of the valve, a filter pipe is installed at one end of the upper connecting pipe, a discharge pipe is installed at one end of the filter pipe, a filter screen is installed on the inner wall of the filter pipe, a vibrator is installed on the outer wall of the filter pipe, a flexible support component is also installed on the outer wall of the filter pipe, a fixing component is installed on the upper connecting pipe and the discharge pipe, and the flexible support component is installed on the fixing component.

[0006] Preferably, the flexible support assembly comprises a spring, the spring is mounted on the outer wall surface of the filter tube, and a connecting block is mounted on one end of the spring.

[0007] Preferably, the fixing assembly comprises a C-shaped frame, the C-shaped frame is mounted on the upper connecting pipe and the outer wall surface of the discharge pipe, and the connecting block is mounted on the C-shaped frame.

[0008] Preferably, the middle parts of the upper connecting pipe and the discharge pipe are both flexible structures.

[0009] Preferably, the upper connecting pipe, the discharge pipe and the filter pipe are all connected by flange connection.

[0010] Preferably, the connecting block is mounted on the C-shaped frame by bolts.

[0011] Beneficial Effects

[0012] The utility model provides a sand adding device, which has the following beneficial effects compared with the prior art: by setting up no less than two filtering structures, it can be achieved that the addition of molding sand is not affected when the filter screen is replaced, thereby ensuring the sand adding efficiency; during normal sand adding operation, the molding sand passes through the filter screen of the filter tube, and the molding sand that meets the size requirements is discharged through the discharge pipe, and the molding sand that does not meet the requirements remains in the filter tube; at the same time, the work of the vibrator helps the filter screen to filter the molding sand, thereby improving the filtering efficiency; when it is necessary to clean the residual molding sand in the filter tube, the corresponding valve and the vibrator can be closed, and the filter tube can be disassembled, while the remaining filtering structures continue to work without affecting the addition of molding sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main cross-sectional structure of a sand adding device of the utility model.

[0014] Figure 2 It is a partial three-dimensional structural schematic diagram of a sand adding device of the utility model.

[0015] In the figure: 1. sand box, 2. valve, 3. upper connecting pipe, 4. filter pipe, 5. discharge pipe, 6. filter screen, 7. vibrator, 8. spring, 9. connecting block, 10. C-frame, 11. bolts. DETAILED DESCRIPTION

[0016] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0017] Embodiment: Through the personnel in this field, all the electrical components in this case are connected to their adapted power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle. The electrical connection between the electrical components is completed in the working sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control. Please refer to Figure 1-2 .

[0018] In order to solve the problem that the conveying work needs to be stopped to replace the filter screen 6 during the conveying of the molding sand, no less than two filtering structures are provided on the sand adding box 1, and the technical solution is as follows;

[0019] Specifically, the device components include a sand box 1 and no less than two filtering structures;

[0020] Specifically, the filtering structure includes a valve 2, which is installed on the lower wall of the sand box 1, an upper connecting pipe 3 is installed at one end of the valve 2, a filter pipe 4 is installed at one end of the upper connecting pipe 3, a discharge pipe 5 is installed at one end of the filter pipe 4, a filter screen 6 is installed on the inner wall of the filter pipe 4, a vibrator 7 is installed on the outer wall of the filter pipe 4, a flexible support component is also installed on the outer wall of the filter pipe 4, a fixed component is installed on the upper connecting pipe 3 and the discharge pipe 5, and the flexible support component is installed on the fixed component;

[0021] It should be noted that during normal sand adding operation, the valve 2 in each filtering structure is in an open state, and molding sand is added from the sand adding box 1, passes through the valve 2 and the upper connecting pipe 3, and enters the filter tube 4. The molding sand with a particle diameter smaller than the mesh size of the filter screen 6 is discharged from the discharge pipe 5 through the filter screen 6, while the molding sand with a particle diameter larger than the mesh size of the filter screen 6 remains in the filter tube 4. At the same time, the vibrator 7 works, and the vibrator 7 makes the filter tube 4 vibrate. The molding sand particles in the filter tube 4 that contact the filter screen 6 vibrate, and the filter screen 6 is assisted to filter the molding sand, thereby improving the filtering efficiency. When it is necessary to clean the molding sand remaining in the filter tube 4, close the valve 2 and the vibrator 7 in one of the filtering structures, and disassemble the corresponding filter tube 4. The remaining filtering structures work normally without affecting the addition of molding sand, thereby ensuring the sand adding efficiency.

[0022] As a preferred embodiment, further, the flexible support assembly includes a spring 8, which is mounted on the outer wall of the filter tube 4, and a connecting block 9 is mounted on one end of the spring 8; the fixed assembly includes a C-shaped frame 10, which is mounted on the upper end connecting tube 3 and the outer wall of the discharge tube 5, and the connecting block 9 is mounted on the C-shaped frame 10;

[0023] It should be noted that when the filter tube 4 vibrates, the spring 8 vibrates accordingly, providing flexible support for the filter tube 4. When the filter tube 4 is removed, the connecting block 9 can be removed from the C-shaped frame 10.

[0024] As a preferred embodiment, further, the middle part of the upper connecting pipe 3 and the discharge pipe 5 are both flexible structures, so that the filter tube 4 can vibrate;

[0025] As a preferred embodiment, further, the connection modes of the upper connecting pipe 3, the discharge pipe 5 and the filter pipe 4 are all flange connections;

[0026] Preferably, further, the connecting block 9 is mounted on the C-shaped frame 10 by means of bolts 11 , and the bolts 11 are used for mounting the connecting block 9 and the C-shaped frame 10 .

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand adding device, comprising a sand adding box (1), It is characterized in that The sand adding box (1) is provided with a filtering structure, and the number of the filtering structures is no less than two; The filtering structure comprises a valve (2), the valve (2) being mounted on the lower wall of the sand adding box (1), an upper connecting pipe (3) being mounted on one end of the valve (2), a filter pipe (4) being mounted on one end of the upper connecting pipe (3), a discharge pipe (5) being mounted on one end of the filter pipe (4), a filter screen (6) being mounted on the inner wall of the filter pipe (4), a vibrator (7) being mounted on the outer wall of the filter pipe (4), a flexible support component being mounted on the outer wall of the filter pipe (4), a fixing component being mounted on the upper connecting pipe (3) and the discharge pipe (5), and the flexible support component being mounted on the fixing component.

2. A sand adding device according to claim 1, It is characterized in that The flexible support assembly comprises a spring (8), the spring (8) is mounted on the outer wall surface of the filter tube (4), and a connecting block (9) is mounted on one end of the spring (8).

3. A sand adding device according to claim 2, It is characterized in that The fixing assembly comprises a C-shaped frame (10), the C-shaped frame (10) is mounted on the upper end connecting pipe (3) and the outer wall surface of the discharge pipe (5), and the connecting block (9) is mounted on the C-shaped frame (10).

4. A sand adding device according to claim 1, It is characterized in that The middle parts of the upper connecting pipe (3) and the discharge pipe (5) are both flexible structures.

5. A sand adding device according to claim 1, It is characterized in that The connection modes of the upper end connecting pipe (3), the discharge pipe (5) and the filter pipe (4) are all flange connections.

6. A sand adding device according to claim 3, It is characterized in that The connecting block (9) is mounted on the C-shaped frame (10) via bolts (11).

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