Metering device for air entraining agent production

Abstract

The utility model relates to the technical field of air entraining agent production, and discloses a metering device for air entraining agent production. The metering device for air entraining agent production comprises a bottom plate, a logic controller is fixedly installed above the bottom plate, a pressure sensor is fixedly installed above the bottom plate, a supporting frame is fixedly installed above the pressure sensor, a metering hopper is fixedly installed at the top end of the supporting frame, and the metering hopper is fixedly installed at the bottom end of the bottom plate. A connecting frame is fixedly mounted above the bottom plate, a receiving hopper is fixedly mounted at the upper end of the connecting frame, and a driving motor can drive a driving shaft to rotate when being started, so that a vertical packing auger fixedly mounted on the outer side of the driving shaft rotates, and the outer diameter of the vertical packing auger is matched with the hole diameter of the lower end of the metering hopper and the hole diameter of the lower end of the receiving hopper; in this way, the materials can be prevented from blocking the lower ends of the metering hopper and the receiving hopper, and the situation that the materials are hardened at openings in the lower ends of the metering hopper and the receiving hopper, and consequently the material conveying efficiency is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of air entraining agent production, in particular to a metering device for air entraining agent production. Background Art

[0002] Air entraining agent, also known as air-entraining agent, is a hydrophobic surfactant in powder form. It is dissolved in water and added to the concrete mixture, which can produce a large number of tiny bubbles during the mixing process. Air entraining agent can improve the workability, water retention and cohesion of concrete mixture, improve the fluidity of concrete, and introduce a large number of evenly distributed, closed and stable tiny bubbles into the concrete mixture during the mixing process. After the air entraining agent is produced, it needs to be quantitatively packaged using a metering device.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN211812414U discloses a powder metering device, including: a storage bin; a conveying unit, the conveying unit includes: a first screw and a second screw, one end of the first screw and the second screw on the same side is connected to the storage bin; a metering bin, the metering bin is connected to the other end of the first screw and the second screw on the same side; wherein the diameter of the first screw is greater than the diameter of the second screw. The powder metering device in this application uses the first screw to convey the powder for high-efficiency feeding, which can reach the metering set value of the metering bin in a short time, saving a lot of time; then the second screw is used to convey the powder for precision feeding. Since the diameter of the second screw is smaller than that of the first screw, the amount of powder falling into the metering bin due to inertia is also small, which has little effect on the overall metering accuracy, thereby improving the problem of frequent metering deviations; at the same time, it saves the time for technicians to open the metering tank to take out the excess powder, saving a lot of time cost and improving production efficiency.

[0004] Since powders are prone to compaction, existing powder metering devices generally weigh powders through a conical cylindrical structure. In this way, the powders are easy to block the lower end of the conical structure, affecting the powder conveying efficiency. At the same time, after the air-entraining agent in the receiving structure reaches a predetermined weight, it is impossible to quickly prevent the air-entraining agent from continuing to enter the receiving structure, which will cause certain errors in packaging. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a metering device for air entraining agent production, which has the advantages of avoiding powder blockage and reducing metering errors, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metering device for air entraining agent production, comprising: a bottom plate, a logic controller is fixedly installed on the top of the bottom plate, a pressure sensor is fixedly installed on the top of the bottom plate, a support frame is fixedly installed on the top of the pressure sensor, a metering bucket is fixedly installed on the top of the support frame, a connecting frame is fixedly installed on the top of the bottom plate, a receiving bucket is fixedly installed on the upper end of the connecting frame, a fixing frame is fixedly installed on the upper ends of the receiving bucket and the metering bucket, a driving motor is inserted and installed in the center of the fixing frame, a driving shaft is fixedly installed on the lower end of the rotating shaft of the driving motor, and the A vertical auger is fixedly installed on the outer side of the driving shaft, a limiting frame is inserted through the lower end of the driving shaft, a solenoid valve is fixedly installed on the lower end of the measuring bucket, a discharge port is fixedly installed on the lower end of the solenoid valve, a feeding pipe is fixedly installed on the lower end of the receiving bucket, a connecting shaft is inserted through the inside of the feeding pipe, a horizontal auger is fixedly installed on the outer side of the connecting shaft, a conveying motor is fixedly installed on the front end of the connecting shaft, a gate valve is fixedly installed on the lower end of the feeding pipe, a baffle is embedded in the inside of the gate valve, and a connecting piston is fixedly installed on the front end of the baffle; the support frame can support the measuring bucket.

[0009] As an optimal technical solution of the utility model, a connecting ring is fixedly installed on the front side of the connecting frame, a fixing ring is fixedly installed on the upper end of the rear side of the connecting frame, a limiting ring is fixedly installed on the rear side of the connecting frame, and a connecting plate is inserted and installed on the outer side of the discharge port; the connecting frame can support the receiving bucket.

[0010] As a preferred technical solution of the utility model, the lower ends of the metering bucket and the receiving bucket are conical structures, and the drive shaft is fixedly connected to the rotating shaft of the drive motor by means of interlaced installation; the drive motor can drive the drive shaft to rotate.

[0011] As a preferred technical solution of the utility model, the outer diameter of the vertical auger matches the aperture of the lower end of the metering bucket and the receiving bucket, and the discharge port is fixedly connected to the support frame through a connecting plate; the discharge port can facilitate the discharge of materials.

[0012] As a preferred technical solution of the utility model, the feed pipe is fixedly connected to the connecting frame through a fixing ring, a limiting ring, and the conveying motor is fixedly connected to the connecting frame through a connecting ring; the feed pipe can limit the position of the material.

[0013] As a preferred technical solution of the utility model, the connecting shaft is rotationally connected to the feeding pipe, and the front end of the connecting shaft is fixedly connected to the rotating shaft of the conveying motor by means of interlaced installation; the connecting shaft can drive the transverse auger to rotate.

[0014] As an optimal technical solution of the utility model, a sliding connection is formed between the baffle and the gate valve, the connecting piston is installed at the front end of the connecting piston symmetrically with the center of the baffle as a reference, and the connecting piston and the gate valve are fixedly connected; the connecting piston can change the position of the baffle.

[0015] Compared with the prior art, the utility model provides a metering device for air entraining agent production, which has the following beneficial effects:

[0016] 1. The utility model sets a driving motor, and the rotating shaft of the driving motor is fixedly connected to the driving shaft by means of interlaced installation. When the driving motor is started, it can drive the driving shaft to rotate, so that the vertical auger fixedly installed on the outside of the driving shaft rotates. Since the outer diameter of the vertical auger matches the aperture of the lower end of the metering bucket and the receiving bucket, the material can be driven to move downward when the vertical auger rotates. This method can avoid the material from clogging the lower end of the metering bucket and the receiving bucket, so as to prevent the material from being compacted at the opening at the lower end of the metering bucket and the receiving bucket, affecting the material conveying efficiency.

[0017] 2. The utility model uses the setting of a logic controller, so that the pressure sensor can detect the weight of the material inside the measuring bucket. The logic controller can perform logical operations on the monitoring data of the pressure sensor, and control the rotation speed of the drive motor and the conveying motor and the extension of the gate valve according to the operation results. The weight threshold is set by the logic controller. When the monitoring data of the pressure sensor is close to the threshold of the logic controller, the logic controller can control the extension of the connecting piston and the rotation speed of the drive motor and the conveying motor according to the difference between the monitoring data and the set threshold. When the connecting piston is extended, it can drive the baffle to move, thereby controlling the opening size of the gate valve. When the monitoring data of the pressure sensor matches the threshold, the logic controller will control the connecting piston to drive the baffle to completely close the gate valve, and stop the drive motor and the conveying motor at the same time. This method can quickly close the gate valve after the material inside the measuring bucket reaches a predetermined weight, so as to prevent the material from continuing to fall into the inside of the measuring bucket. This method can reduce the metering error. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the connection structure between the receiving bucket and the bottom plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the vertical auger and the receiving bucket of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the feeding pipe and the receiving bucket of the utility model;

[0022] Among them: 1. Bottom plate; 11. Logic controller; 12. Pressure sensor; 13. Support frame; 14. Measuring bucket; 15. Connecting frame; 16. Connecting ring; 17. Fixed ring; 18. Limiting ring; 19. Receiving bucket; 110. Fixed frame; 111. Driving motor; 112. Driving shaft; 113. Vertical auger; 114. Limiting frame; 115. Solenoid valve; 116. Discharge port; 117. Connecting plate; 2. Feeding pipe; 21. Connecting shaft; 22. Horizontal auger; 23. Conveying motor; 24. Gate valve; 25. Baffle; 26. Connecting piston. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 one Figure 4In the present embodiment, a metering device for producing an air entraining agent includes: a bottom plate 1, a logic controller 11 is fixedly installed on the top of the bottom plate 1, a pressure sensor 12 is fixedly installed on the top of the bottom plate 1, a support frame 13 is fixedly installed on the top of the pressure sensor 12, a metering bucket 14 is fixedly installed on the top of the support frame 13, a connecting frame 15 is fixedly installed on the top of the bottom plate 1, a receiving bucket 19 is fixedly installed on the upper end of the connecting frame 15, a fixing frame 110 is fixedly installed on the upper ends of the receiving bucket 19 and the metering bucket 14, a driving motor 111 is inserted and installed at the center of the fixing frame 110, a driving shaft 112 is fixedly installed at the lower end of the rotating shaft of the driving motor 111, a vertical auger 113 is fixedly installed on the outer side of the driving shaft 112, a limiting frame 114 is inserted and installed on the lower end of the driving shaft 112, a solenoid valve 115 is fixedly installed on the lower end of the metering bucket 14, and a discharge port 116 is fixedly installed on the lower end of the solenoid valve 115.

[0027] A connecting ring 16 is fixedly installed on the front side of the connecting frame 15 , a fixing ring 17 is fixedly installed on the upper end of the rear side of the connecting frame 15 , a limiting ring 18 is fixedly installed on the rear side of the connecting frame 15 , and a connecting plate 117 is inserted and installed on the outer side of the discharge port 116 .

[0028] The lower ends of the measuring bucket 14 and the receiving bucket 19 are of a conical structure, and the driving shaft 112 is fixedly connected to the rotating shaft of the driving motor 111 by means of insertion installation.

[0029] The outer diameter of the vertical auger 113 matches the aperture of the lower ends of the metering bucket 14 and the receiving bucket 19 , and the discharge 116 is fixedly connected to the support frame 13 via a connecting plate 117 .

[0030] Specifically, the base plate 1 can support the connecting frame 15, the model of the logic controller 11 is FX5U, the logic controller 11 can control the rotation speed of the conveying motor 23 and the extension of the connecting piston 26 according to the detection data of the pressure sensor 12, the model of the pressure sensor 12 is AR-DN31, the pressure sensor 12 can detect the weight of the material inside the measuring bucket 14, the support frame 13 can support the measuring bucket 14, the measuring bucket 14 can receive the material, the connecting frame 15 can support the receiving bucket 19, the connecting ring 16 can limit the position of the conveying motor 23, the fixing ring 17 and the limiting ring 18 can It supports the feeding pipe 2, the receiving bucket 19 can facilitate the material to enter the feeding pipe 2, the fixing frame 110 can limit the position of the driving motor 111, the driving motor 111 can drive the driving shaft 112 to rotate, the driving shaft 112 can drive the vertical auger 113 to rotate, the vertical auger 113 can prevent the material from blocking the receiving bucket 19 and the lower end outlet of the measuring bucket 14, the limiting frame 114 can limit the lower end position of the driving shaft 112, the solenoid valve 115 can control the connection state between the measuring bucket 14 and the discharge port 116, the discharge port 116 can facilitate the discharge of materials, and the connecting plate 117 can limit the position of the discharge port 116.

[0031] A feeding pipe 2 is fixedly installed at the lower end of the receiving bucket 19, a connecting shaft 21 is inserted into the inside of the feeding pipe 2, a transverse auger 22 is fixedly installed on the outside of the connecting shaft 21, a conveying motor 23 is fixedly installed at the front end of the connecting shaft 21, a gate valve 24 is fixedly installed at the lower end of the feeding pipe 2, a baffle 25 is embedded in the inside of the gate valve 24, and a connecting piston 26 is fixedly installed at the front end of the baffle 25.

[0032] The feeding pipe 2 is fixedly connected to the connecting frame 15 via a fixing ring 17 and a limiting ring 18 , and the conveying motor 23 is fixedly connected to the connecting frame 15 via a connecting ring 16 .

[0033] The connecting shaft 21 is rotationally connected to the feeding tube 2 , and the front end of the connecting shaft 21 is fixedly connected to the rotating shaft of the conveying motor 23 by means of insertion installation.

[0034] The baffle plate 25 and the gate valve 24 are slidably connected. The connecting piston 26 is symmetrically installed at the front end of the connecting piston 26 with the center of the baffle plate 25 as a reference. The connecting piston 26 and the gate valve 24 are fixedly connected.

[0035] Specifically, the feeding pipe 2 can limit the material position, the connecting shaft 21 can drive the transverse auger 22 to rotate, the transverse auger 22 can convey the material, the conveying motor 23 can drive the connecting shaft 21 to rotate, the gate valve 24 can facilitate closing the lower end of the feeding pipe 2, the baffle 25 can prevent the material from falling, and the connecting piston 26 can change the position of the baffle 25.

[0036] When in use, the rotating shaft of the driving motor 111 is fixedly connected to the driving shaft 112 by means of an interlaced installation. When the driving motor 111 is started, it can drive the driving shaft 112 to rotate, so that the vertical auger 113 fixedly installed on the outside of the driving shaft 112 rotates. Since the outer diameter of the vertical auger 113 matches the aperture of the lower end of the metering bucket 14 and the receiving bucket 19, the material can be driven to move downward when the vertical auger 113 rotates. This method can avoid the material from blocking the lower end of the metering bucket 14 and the receiving bucket 19, so as to prevent the material from being hardened at the opening at the lower end of the metering bucket 14 and the receiving bucket 19, affecting the material conveying efficiency. After entering the receiving bucket 19, the material will enter the interior of the feeding pipe 2 through the receiving bucket 19. The conveying motor 23 can drive the horizontal auger 22 to rotate through the connecting shaft 21, so that the material inside the feeding pipe 2 moves toward the rear end of the feeding pipe 2, and the material will enter the interior of the metering bucket 14 through the feeding pipe 2. The pressure sensor 12 can detect the weight of the material inside the metering bucket 14, and the logic controller 11 can The logic controller 11 can perform logical operations on the monitoring data of the pressure sensor 12, and control the rotation speed of the drive motor 111 and the conveying motor 23 and the extension of the gate valve 24 according to the operation results. The weight threshold is set by the logic controller 11. When the monitoring data of the pressure sensor 12 is close to the threshold of the logic controller 11, the logic controller 11 can control the extension of the connecting piston 26 and the rotation speed of the drive motor 111 and the conveying motor 23 according to the difference between the monitoring data and the set threshold. When the connecting piston 26 is extended, it can drive the baffle 25 to move, thereby controlling the opening size of the gate valve 24. When the monitoring data of the pressure sensor 12 matches the threshold, the logic controller 11 will control the connecting piston 26 to drive the baffle 25 to completely close the gate valve 24, and stop the drive motor 111 and the conveying motor 23 at the same time. This method can quickly close the gate valve 24 after the material inside the measuring bucket 14 reaches a predetermined weight, so as to prevent the material from continuing to fall into the inside of the measuring bucket 14. This method can reduce the metering error.

[0037] 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 metering device for air entraining agent production, characterized in that: include: A bottom plate (1) is fixedly installed with a logic controller (11) on the top of the bottom plate (1), a pressure sensor (12) is fixedly installed on the top of the bottom plate (1), a support frame (13) is fixedly installed on the top of the pressure sensor (12), a metering bucket (14) is fixedly installed on the top of the support frame (13), a connecting frame (15) is fixedly installed on the top of the bottom plate (1), a receiving bucket (19) is fixedly installed on the upper end of the connecting frame (15), a fixing frame (110) is fixedly installed on the upper end of the receiving bucket (19) and the upper end of the metering bucket (14), a driving motor (111) is inserted and installed in the center of the fixing frame (110), a driving shaft (112) is fixedly installed on the lower end of the rotating shaft of the driving motor (111), and the outer side of the driving shaft (112) is fixedly installed. A vertical auger (113) is installed, a limiting frame (114) is inserted into the lower end of the driving shaft (112), a solenoid valve (115) is fixedly installed at the lower end of the metering bucket (14), a discharge port (116) is fixedly installed at the lower end of the solenoid valve (115), a feeding pipe (2) is fixedly installed at the lower end of the receiving bucket (19), a connecting shaft (21) is inserted into the interior of the feeding pipe (2), a horizontal auger (22) is fixedly installed on the outside of the connecting shaft (21), a conveying motor (23) is fixedly installed at the front end of the connecting shaft (21), a gate valve (24) is fixedly installed at the lower end of the feeding pipe (2), a baffle (25) is embedded in the interior of the gate valve (24), and a connecting piston (26) is fixedly installed at the front end of the baffle (25).

2. The metering device for air-entraining agent production according to claim 1, characterized in that: A connecting ring (16) is fixedly installed on the front side of the connecting frame (15), a fixing ring (17) is fixedly installed on the upper end of the rear side of the connecting frame (15), a limiting ring (18) is fixedly installed on the rear side of the connecting frame (15), and a connecting plate (117) is inserted and installed on the outer side of the discharge port (116).

3. The metering device for air-entraining agent production according to claim 1, characterized in that: The lower ends of the measuring bucket (14) and the receiving bucket (19) are conical structures, and the driving shaft (112) is fixedly connected to the rotating shaft of the driving motor (111) by means of interlaced installation.

4. The metering device for air-entraining agent production according to claim 1, characterized in that: The outer diameter of the vertical auger (113) matches the aperture of the lower end of the metering bucket (14) and the receiving bucket (19), and the discharge port (116) is fixedly connected to the support frame (13) via a connecting plate (117).

5. The metering device for air-entraining agent production according to claim 1, characterized in that: The feeding pipe (2) is fixedly connected to the connecting frame (15) via a fixing ring (17), a limiting ring (18), and the conveying motor (23) is fixedly connected to the connecting frame (15) via a connecting ring (16).

6. The metering device for air-entraining agent production according to claim 1, characterized in that: The connecting shaft (21) is rotatably connected to the feeding pipe (2), and the front end of the connecting shaft (21) is fixedly connected to the rotating shaft of the conveying motor (23) by means of insertion installation.

7. The metering device for air-entraining agent production according to claim 1, characterized in that: The baffle (25) and the gate valve (24) are slidably connected, and the connecting piston (26) is symmetrically mounted on the front end of the connecting piston (26) with the center of the baffle (25) as a reference. The connecting piston (26) and the gate valve (24) are fixedly connected.

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