Pre-mixed mortar screening device

Abstract

The utility model relates to mortar screening technical field, concretely is premixed mortar screening device, including the casing, the inside of casing installs the sieve plate for screening mortar, the casing top symmetry fixed mounting is with two for storing mortar's storage hopper, the storage hopper bottom is to sieve plate edge inclination, the storage hopper bottom intercommunication fixed mounting is with a plurality of for the feeding pipe of supplying material to sieve plate, the feeding pipe outside intercommunication fixed mounting has controlled its opening, the electric valve that closes, the utility model mortar flows out from the feeding pipe, sticks sieve plate edge flow to the middle part, each position of sieve plate is utilized, and screening efficiency promotes, when the inside of sieve plate accumulates more big particle mortar that needs to clean, screening motor drives sieve plate to rotate half a week, and big particle mortar falls to the deflector in the inside of sieve plate, then flows out along the deflector from the discharge through -hole, flows to the collection box, and the electric valve opens, continues screening operation, and automatically detects, cleans big particle mortar, need not to rely on external tool and staff auxiliary.

Description

Technical Field

[0001] This utility model relates to the field of mortar screening technology, specifically to a premixed mortar screening device. Background Technology

[0002] The premixed mortar screening device is one of the core equipment in the dry-mixed mortar production line. It is mainly used to remove impurities (such as lumps and foreign objects) from the raw materials and classify the particles to ensure the uniformity of the finished product and its workability.

[0003] For example, patent CN221063425U discloses a premixed mortar screening device. The premixed mortar is poured into the storage hopper at once, and then the motor is started. The motor rotates and drives the partition to slide back and forth. When the two first through holes on the partition coincide with the two second through holes on the limiting plate, the premixed mortar will fall out and fall into the arc-shaped filter screen for screening. When the partition slides to block the two second through holes on the limiting plate, the premixed mortar stops falling, thus allowing enough time for screening. Therefore, it is not necessary for the staff to constantly use tools to pour the premixed mortar onto the screen for screening, which reduces the workload of the staff and is convenient and fast. However, there are still areas for improvement.

[0004] Premixed mortar falls into the center of the screen, resulting in low utilization of other areas. Furthermore, large mortar particles tend to move to the center of the screen under gravity, making it more prone to clogging and reducing screening efficiency. Moreover, when screening is complete or when a large amount of large mortar particles are trapped in the center of the screen, the aforementioned equipment cannot automatically discharge them, requiring the use of external equipment, which is quite cumbersome. Utility Model Content

[0005] To address the aforementioned issues, this application provides a premixed mortar screening device, which solves the problem of large mortar particles that are easily clogged in the center of the screen and cannot be automatically cleaned.

[0006] A premixed mortar screening device includes a shell, a screen plate for screening mortar is installed inside the shell, and two storage hoppers for storing mortar are symmetrically fixedly installed on the top of the shell, with the bottom of the storage hoppers inclined towards the edge of the screen plate.

[0007] The bottom of the storage hopper is connected to and fixedly installed with multiple feed pipes for feeding material to the screen plate;

[0008] An electric valve is fixedly installed on the outside of the feed pipe to control its opening and closing.

[0009] Furthermore, a screening motor is fixedly installed on the outside of the housing, and connecting frames are symmetrically fixedly installed on the outside of the screen plate. A rotating shaft is fixedly installed on the outside of the connecting frame. The rotating shaft rotates through the housing, and one of the rotating shafts is fixedly connected to the output end of the screening motor.

[0010] Furthermore, a pressure sensor is embedded and fixedly installed inside the housing. The pressure sensor is located at the bottom of the outer side of the rotating shaft and is electrically connected to the electric valve and the screening motor.

[0011] Furthermore, a guide plate is hinged to the inner side of the housing, and a discharge port is provided through the bottom of the housing.

[0012] Furthermore, a discharge through hole is provided on the outer side of the housing, and multiple linkage ropes are fixedly installed on the outer side of the guide plate. The linkage ropes slide through the housing, and a winding mechanism body is fixedly installed on the outer side of the housing. The ends of the linkage ropes are wound inside the winding mechanism body.

[0013] Furthermore, the pressure sensor is electrically connected to the winding mechanism body.

[0014] The beneficial effects of this utility model are as follows:

[0015] The premixed mortar screening device of this utility model allows mortar to flow out from the feed pipe, adhere to the edge of the screen plate and flow to the middle, so that all positions of the screen plate are utilized and the screening efficiency is improved.

[0016] When a large amount of mortar particles accumulate on the inner side of the screen plate and needs to be cleaned, the screening motor drives the screen plate to rotate half a revolution. The large mortar particles on the inner side of the screen plate fall to the guide plate, and then flow out through the discharge hole along the guide plate to the collection box. The electric valve opens and the screening operation continues. The large mortar particles are automatically detected and cleaned without the need for external tools or personnel assistance. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 A schematic diagram of the overall structure of the premixed mortar screening device provided by this utility model;

[0019] Figure 2 A schematic diagram of the pressure sensor installation for the premixed mortar screening device provided by this utility model;

[0020] Figure 3 A schematic diagram of the internal structure of the premixed mortar screening device provided by this utility model;

[0021] Figure 4 A schematic diagram of the storage hopper structure of the premixed mortar screening device provided by this utility model.

[0022] In the picture:

[0023] 1. Shell; 2. Storage hopper; 3. Feed pipe; 4. Electric valve; 5. Screen plate; 6. Connecting frame; 7. Guide plate; 8. Linkage rope; 9. Rewinding mechanism body; 10. Discharge through hole; 11. Screening motor; 12. Pressure sensor; 13. Rotating shaft; 14. Feed port. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0025] like Figure 1-4 As shown, this utility model embodiment provides a premixed mortar screening device, including a housing 1, a screen plate 5 for screening mortar installed on the inner side of the housing 1, and two storage hoppers 2 for storing mortar symmetrically fixedly installed on the top of the housing 1, with the bottom of the storage hoppers 2 inclined towards the edge of the screen plate 5.

[0026] The bottom of the storage hopper 2 is connected to and fixedly installed with multiple feed pipes 3 for feeding material to the screen plate 5;

[0027] An electric valve 4 is fixedly installed on the outside of the feed pipe 3 to control its opening and closing;

[0028] A guide plate 7 is hinged to the inner side of the shell 1 to guide the flow direction of the mortar and achieve diversion. A discharge port 14 is opened through the bottom of the shell 1 so that the mortar that meets the adjustment can flow out from the discharge port 14.

[0029] In this embodiment, the worker pours the mortar into the storage hopper 2, the electric valve 4 is opened, and the mortar flows out from the discharge pipe 3, adhering to the edge of the screen plate 5 and flowing to the middle. All positions of the screen plate 5 are utilized, the screening efficiency is improved, and small particles of mortar pass through the mesh and fall to the guide plate 7, and then flow out from the discharge port 14 along the guide plate 7, flowing to the collection box or the next station.

[0030] Specifically, a screening motor 11 for driving the screen plate 5 to rotate is fixedly installed on the outside of the housing 1. A connecting frame 6 is symmetrically fixedly installed on the outside of the screen plate 5. A rotating shaft 13 is fixedly installed on the outside of the connecting frame 6. The rotating shaft 13 rotates through the housing 1, and one of the rotating shafts 13 is fixedly connected to the output end of the screening motor 11.

[0031] Specifically, a pressure sensor 12 for detecting the weight of large particles of mortar inside the screen plate 5 is embedded and fixedly installed inside the housing 1. The pressure sensor 12 is located at the bottom outside the rotating shaft 13 and is electrically connected to the electric valve 4 and the screening motor 11.

[0032] In this embodiment, as the mortar accumulates at the bottom of the sieve plate 5, the pressure sensor 12 experiences increased pressure and sends an electrical signal to the data processor. The data processor then sends an electrical signal to the electric valve 4 and the screening motor 11.

[0033] When the electric valve 4 is closed, the screening motor 11 is started, driving the rotating shaft 13, connecting frame 6, screen plate 5 and the mortar inside to rotate. The screen plate 5 rotates back and forth (the rotation angle on one side is 30°), accelerating the screening of the mortar. After the set time, the screening motor 11 is de-energized. If the pressure sensor 12 returns to normal, the electric valve 4 is opened, and the material continues to be fed to the screen plate 5.

[0034] Specifically, a discharge through hole 10 is provided on the outer side of the housing 1, through which large particles of mortar flow out. Multiple linkage ropes 8 are fixedly installed on the outer side of the guide plate 7. The linkage ropes 8 slide through the housing 1. A winding mechanism body 9 is fixedly installed on the outer side of the housing 1. The pressure sensor 12 is electrically connected to the winding mechanism body 9. The winding mechanism body 9 controls the direction of the guide plate 7 through the linkage ropes 8, that is, controls the flow direction of the mortar. The ends of the linkage ropes 8 are wound inside the winding mechanism body 9.

[0035] In this embodiment, if the pressure of the pressure sensor 12 does not drop to the set value, it indicates that there is a large amount of large-particle mortar accumulated on the inner side of the screen plate 5, which needs to be cleaned. The pressure sensor 12 controls the winding mechanism body 9 and the screening motor 11 through the data processor. The winding mechanism body 9 winds up the linkage rope 8, causing the guide plate 7 to deflect upward and cooperate with the discharge through hole 10. The screening motor 11 drives the screen plate 5 to rotate 180°, and the large-particle mortar on the inner side of the screen plate 5 falls to the guide plate 7, and then flows out from the discharge through hole 10 along the guide plate 7 and flows to the collection box. The screening motor 11 drives the screen plate 5 to rotate 180° to reset, the winding mechanism body 9 resets the linkage rope 8, the guide plate 7 resets under the action of gravity, the electric valve 4 opens, and the screening operation continues. The large-particle mortar is automatically detected and cleaned without the need for external tools or personnel assistance.

[0036] Specific working methods:

[0037] The worker pours the mortar into the storage hopper 2, opens the electric valve 4, and the mortar flows out from the discharge pipe 3, flows along the edge of the screen plate 5 to the middle, and all positions of the screen plate 5 are utilized, thus improving the screening efficiency. Small particles of mortar pass through the mesh and fall to the guide plate 7, and then flow out from the discharge port 14 along the guide plate 7 to the collection box or the next station.

[0038] As the mortar accumulates at the bottom of the sieve plate 5, the pressure sensor 12 experiences increased pressure and sends an electrical signal to the data processor. The data processor then sends an electrical signal to the electric valve 4 and the screening motor 11.

[0039] When the electric valve 4 is closed, the screening motor 11 is started, driving the rotating shaft 13, connecting frame 6, screen plate 5 and the mortar inside to rotate. The screen plate 5 rotates back and forth (the rotation angle on one side is 30°), accelerating the screening of mortar. After the set time, the screening motor 11 is de-energized. If the pressure sensor 12 returns to normal, the electric valve 4 is opened to continue feeding material to the screen plate 5.

[0040] If the pressure sensor 12 does not drop to the set value, it indicates that there is a large amount of large mortar particles accumulated on the inner side of the screen plate 5, which needs to be cleaned. The pressure sensor 12 controls the winding mechanism body 9 and the screening motor 11 through the data processor. The winding mechanism body 9 winds up the linkage rope 8, causing the guide plate 7 to deflect upward and cooperate with the discharge through hole 10. The screening motor 11 drives the screen plate 5 to rotate 180°. The large mortar particles on the inner side of the screen plate 5 fall onto the guide plate 7, and then flow out from the discharge through hole 10 along the guide plate 7 and flow to the collection box. The screening motor 11 drives the screen plate 5 to rotate 180° to reset. The winding mechanism body 9 resets the linkage rope 8. The guide plate 7 resets under the action of gravity. The electric valve 4 opens and the screening operation continues. The large mortar particles are automatically detected and cleaned without the need for external tools or personnel assistance.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A premixed mortar screening device, comprising a housing (1), wherein a sieve plate (5) for screening mortar is installed on the inner side of the housing (1), characterized in that: The top of the shell (1) is symmetrically fixed with two storage hoppers (2) for storing mortar, and the bottom of the storage hoppers (2) is inclined toward the edge of the screen plate (5); The bottom of the storage hopper (2) is connected to and fixedly installed with multiple feed pipes (3) for feeding material to the screen plate (5); An electric valve (4) is fixedly installed on the outside of the feed pipe (3) to control its opening and closing; A screening motor (11) is fixedly installed on the outside of the shell (1), and a connecting frame (6) is symmetrically fixedly installed on the outside of the screen plate (5). A rotating shaft (13) is fixedly installed on the outside of the connecting frame (6). The rotating shaft (13) rotates through the shell (1), and one of the rotating shafts (13) is fixedly connected to the output end of the screening motor (11).

2. The premixed mortar screening device according to claim 1, characterized in that: A pressure sensor (12) is fixedly installed inside the housing (1). The pressure sensor (12) is located at the bottom outside the rotating shaft (13). The pressure sensor (12) is electrically connected to the electric valve (4) and the screening motor (11).

3. The premixed mortar screening device according to claim 2, characterized in that: The inner side of the shell (1) is hinged with a guide plate (7), and the bottom of the shell (1) is provided with a discharge port (14).

4. The premixed mortar screening device according to claim 3, characterized in that: The outer side of the housing (1) is provided with a discharge through hole (10), and multiple linkage ropes (8) are fixedly installed on the outer side of the guide plate (7). The linkage ropes (8) slide through the housing (1), and the winding mechanism body (9) is fixedly installed on the outer side of the housing (1). The end of the linkage rope (8) is wound inside the winding mechanism body (9).

5. The premixed mortar screening device according to claim 4, characterized in that: The pressure sensor (12) is electrically connected to the winding mechanism body (9).

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