Automatic adding device for liquid mildew preventive

Abstract

The utility model relates to an automatic liquid mildew preventive adding device in the technical field of adding devices. The automatic liquid mildew preventive adding device comprises a horizontal mixing tank, one end of the mixing tank is provided with a mildew preventive feed port, the other end of the mixing tank is provided with a discharge port, the mildew preventive feed port is connected with a storage tank, a flowmeter is arranged at the mildew preventive feed port, a stirring rod I is arranged in the storage tank, the stirring rod I is connected with a motor I, a stirring rod II is arranged in the mixing tank, the stirring rod II is connected with a motor II, and the motor II is connected with a motor II. The second stirring rod is provided with a second stirring blade and a scraping rod, and the discharging port, the material inlet and the mildew preventive feeding port are each provided with an electric switch valve. According to the utility model, the horizontal mixing tank is matched with the storage tank, so that the passing path of a liquid mildew preventive entering the mixing tank is reduced, the loss of the liquid mildew preventive is reduced, and the adding precision of the mildew preventive is improved; the influence on the adding precision due to the fact that the liquid mildew preventive adheres to the second stirring rod and the second stirring blade and does not make contact with the materials is reduced, and the material mixing effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of adding devices, and particularly relates to an automatic adding device for liquid mildew-proof agents. Background Art

[0002] Mildew-proof agents are mainly divided into: cosmetics mildew-proof agents, washing products mildew-proof agents, paper mildew-proof agents, broad-spectrum fungicides, leather mildew-proof agents, wood mildew-proof agents, etc., which have strong inhibitory and killing effects on bacteria, fungi, and algae. At present, when using liquid mildew-proof agents, manual metering and manual mixing are required. This method has low production efficiency, inaccurate addition amount of liquid mildew-proof agents. In addition, when the liquid mildew-proof agent is added into the mixing tank, it is easy to fall on the stirring rod. If the material in the stirring tank is less, it cannot be in full contact with the stirring rod. Even if the amount of liquid mildew-proof agent added is accurate, due to some of the liquid mildew-proof agent spilled on the top stirring rod not being able to contact the material during mixing, the addition amount of the liquid mildew-proof agent is insufficient during mixing, affecting the effect. Therefore, an automatic adding device for liquid mildew-proof agents is needed to solve the above technical problems. Content of the Utility Model

[0003] For the above defects existing in the prior art, the utility model provides an automatic adding device for liquid mildew-proof agents, including a mixing tank; the mixing tank is in a horizontal cylindrical shape, the mixing tank is provided with a material inlet, one end of the mixing tank is provided with a mildew-proof agent inlet, the other end of the mixing tank is provided with a discharge port, the mildew-proof agent inlet is connected with a storage tank, a flow meter is arranged at the mildew-proof agent inlet, a stirring rod one is arranged in the storage tank, the stirring rod one is connected with a motor one, and a stirring blade one is fixed on the stirring rod one; a stirring rod two is arranged in the mixing tank, the stirring rod two is connected with a motor two, a stirring blade two is fixed on the stirring rod two, and the stirring rod two is connected with a scraping rod through a fixing rod, and the scraping rod contacts the inner wall of the mixing tank; electric switch valves are arranged at the discharge port, the material inlet, and the mildew-proof agent inlet. In the utility model, the storage tank stores liquid mildew-proof agents, and other liquid materials are added into the mixing tank through the material inlet. When it is necessary to add the liquid mildew-proof agent into the mixing tank, the electric switch valve at the mildew-proof agent inlet is opened, and the liquid mildew-proof agent directly falls into the mixing tank. Since the flow meter is arranged at the mildew-proof agent inlet, the path through which the liquid mildew-proof agent enters the mixing tank is reduced, and the loss of the liquid mildew-proof agent during the path is reduced, making the dosage of the liquid mildew-proof agent entering the mixing tank more accurate. After entering the mixing tank, part of the liquid mildew-proof agent falls on the stirring rod one and the stirring blade one. Since the mixing tank is horizontal, during the process of driving the stirring rod one to rotate by the motor one, all the stirring blades one will pass through the bottom of the mixing tank, ensuring its full contact with the materials in the mixing tank, reducing the situation that the liquid mildew-proof agent cannot be fully mixed with the materials in the mixing tank due to falling on the stirring blade one during the falling process, and further improving the accuracy of adding the liquid mildew-proof agent.

[0004] Preferably, a controller is provided on the mixing tank, and the flowmeter, the first motor, the second motor and each electric switch valve are electrically connected to the controller. By controlling the operation of the first motor, the second motor and each electric switch valve through the controller, the degree of automation is improved.

[0005] Preferably, a first concentration meter is provided at the lower part of the side wall at one end of the mixing tank, and a second concentration meter is provided at the upper part of the side wall at the other end of the mixing tank. The first concentration meter and the second concentration meter are both connected to the controller. When the material concentration at the upper part of one end of the mixing tank is equivalent to the material concentration at the lower part of the other end of the mixing tank, and the concentration difference is within the error range, it indicates that the mixing is uniform, and the discharge port can be opened for discharging. When the material concentration at the upper part of one end of the mixing tank is quite different from the material concentration at the lower part of the other end of the mixing tank, and the concentration difference is outside the error range, it indicates that the mixing effect is not good, and continuous mixing is required until the concentration difference is within the error range to complete the mixing. This setting ensures the uniformity and sufficiency of mixing, and avoids wasting energy due to overmixing or affecting the effect due to insufficient mixing.

[0006] Preferably, the second stirring rod is a feeding screw, and the second motor is a forward and reverse rotation motor. This setting can make the material flow in the mixing tank in the positive and negative directions through the forward and reverse rotation of the second stirring rod under the action of the spiral feeding blades of the feeding screw, further improving the mixing efficiency and effect.

[0007] Preferably, a receiving hopper is provided in the mixing tank. The receiving hopper is matched with the mildew-proof agent feeding port. The receiving hopper is connected to the second stirring rod through a support rod. A weight sensor is provided at the bottom of the receiving hopper. A first wire channel and a second wire channel are respectively provided along the central axis in the support rod and the second stirring rod. The first wire channel is communicated with the second wire channel. The second wire channel extends to one end of the second stirring rod. The wire connected to the weight sensor passes through the first wire channel and the second wire channel in sequence and then is connected to an external power supply through a slip ring. The weight sensor is electrically connected to the second motor. This setting can further weigh the liquid mildew-proof agent falling into the mixing tank, further ensuring the accuracy of the added amount. The receiving hopper rotates with the second stirring rod, making the liquid mildew-proof agent fully mixed with the material.

[0008] The present utility model further includes other components that can enable a liquid mildew-proof agent automatic adding device to be used normally, such as the control components of the forward and reverse rotation motor, the control components of the first motor, the control components of the flowmeter, the control components of the electric switch valve, the control components of the first concentration meter and the second concentration meter, etc., which are all conventional technical means in the art. In addition, the devices or components not limited in the present utility model, such as the forward and reverse rotation motor, the first motor, the flowmeter, the electric switch valve, the first concentration meter, the second concentration meter, the controller, the slip ring, etc., all adopt conventional technical means and conventional equipment in the art.

[0009] Advantages of the present utility model: The horizontal mixing tank and the storage tank cooperate with each other, reducing the path that the liquid mildew preventive agent passes through when entering the mixing tank, reducing the loss of the liquid mildew preventive agent, and improving the accuracy of the addition of the mildew preventive agent. At the same time, the horizontal setting of the mixing tank enables the stirrer II and the stirring blade II to fully contact the materials in the mixing tank, reducing the influence of the liquid mildew preventive agent sticking to the stirring rod II and the stirring blade II without contacting the materials on its addition accuracy. The structure of the feeding screw of the stirring rod II and its cooperation with the concentration meters I and II can improve the mixing effect and ensure the uniformity and sufficiency of the mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0011] Figure 1 FIG. is a three-dimensional structural schematic diagram of an automatic liquid mildew preventive agent adding device in an embodiment of the present utility model;

[0012] Figure 2 is Figure 1 a view from A-A in FIG.

[0013] In the figure: 1, mixing tank; 2, stirring rod II; 3, material inlet; 4, motor II; 5, storage tank; 6, mildew preventive agent feed inlet; 7, flow meter; 8, liquid inlet; 9, stirring rod I; 10, motor I; 11, concentration meter I; 12, scraping rod; 13, fixing rod; 14, spiral feeding paddle; 15, discharge port; 16, concentration meter II; 17, stirring blade II; 18, receiving hopper; 19, weight sensor; 20, support rod; 21, wire channel I; 22, wire channel II; 23, electric wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present utility model will be clearly described below in conjunction with the drawings in the embodiments of the present utility model and specific embodiments. The description here is only used to explain the present utility model and does not limit the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present utility model.

[0015] Embodiment

[0016] As Figure 1-2As shown in the figure, the present utility model provides an automatic adding device for liquid mildew-proof agent, including a mixing tank 1; the mixing tank 1 is in the shape of a horizontal cylinder, the mixing tank 1 is provided with a material inlet 3, one end of the mixing tank 1 is provided with a mildew-proof agent inlet 6, the other end of the mixing tank 1 is provided with a discharge port 15, the mildew-proof agent inlet 6 is connected with a storage tank 5, the storage tank 5 is provided with a liquid inlet 8, a flowmeter 7 (which can be an electromagnetic flowmeter or a micro metal float flowmeter or a liquid turbine) is arranged at the mildew-proof agent inlet 6, a stirring rod 9 is arranged in the storage tank 5, the stirring rod 9 is connected with a motor 10, and stirring blades 1 are fixed on the stirring rod 9, which can stir the mildew-proof agent in the storage tank to make it more uniform and avoid precipitation; a stirring rod 2 is arranged in the mixing tank 1, the stirring rod 2 is connected with a motor 4, stirring blades 17 are fixed on the stirring rod 2, the stirring rod 2 is connected with a scraping rod 12 through a fixing rod 13, the scraping rod 12 is in contact with the inner wall of the mixing tank 1, and the scraping rod can scrape the inner wall of the mixing tank to avoid the adhesion of materials; electric switch valves are arranged at the discharge port, the material inlet 3 and the mildew-proof agent inlet 6. In the present utility model, the storage tank 5 stores the liquid mildew-proof agent, and other liquid materials are added into the mixing tank 1 through the material inlet 3. When it is necessary to add the liquid mildew-proof agent into the mixing tank 1, the electric switch valve at the mildew-proof agent inlet 6 is opened, and the liquid mildew-proof agent directly falls into the mixing tank 1. Since the flowmeter 7 is arranged at the mildew-proof agent inlet 6, the path through which the liquid mildew-proof agent enters the mixing tank 1 is reduced, and the loss of the liquid mildew-proof agent in the path is reduced, so that the dosage of the liquid mildew-proof agent entering the mixing tank 1 is more accurate. After entering the mixing tank 1, part of the liquid mildew-proof agent falls on the stirring rod 9 and the stirring blades 1. Since the mixing tank is horizontal, during the process of the motor 10 driving the stirring rod 9 to rotate, all the stirring blades 1 will pass through the bottom of the mixing tank, ensuring its full contact with the materials in the mixing tank, reducing the situation that the liquid mildew-proof agent cannot be fully mixed with the materials in the mixing tank due to falling on the stirring blades 1 during the falling process, and further improving the accuracy of adding the liquid mildew-proof agent.

[0017] A controller is arranged on the mixing tank 1, and the flowmeter 7, the motor 10, the motor 4 and each electric switch valve are electrically connected with the controller. By controlling the operation of the motor 10, the motor 4 and each electric switch valve through the controller, the degree of automation is improved.

[0018] A concentration meter one 11 is provided at the lower part of the side wall at one end of the mixing tank 1, and a concentration meter two 16 is provided at the upper part of the side wall at the other end of the mixing tank 1. Both the concentration meter one 11 and the concentration meter two 16 are connected to the controller. The concentration meter one and the concentration meter two can both adopt the Mingrui LQ32T mildew preventive concentration meter (or LQ series cutting fluid concentration meters, etc., all of which are existing technologies). When the material concentration at the upper part of one end of the mixing tank 1 is equivalent to the material concentration at the lower part of the other end of the mixing tank 1 and the concentration difference is within the error range, it indicates that the mixing is uniform and the discharge port can be opened for discharging. When the material concentration at the upper part of one end of the mixing tank 1 is quite different from the material concentration at the lower part of the other end of the mixing tank 1 and the concentration difference is outside the error range, it indicates that the mixing effect is not good and continuous mixing is required until the concentration difference is within the error range to complete the mixing. This setting ensures the uniformity and sufficiency of mixing, avoiding wasting energy due to excessive mixing or affecting the effect due to insufficient mixing.

[0019] The stirring rod two 2 is a feeding screw rod, and the motor two 4 is a forward and reverse rotation motor. This setting can make the material flow in the mixing tank 1 in the positive and negative directions under the action of the spiral feeding blades 14 of the feeding screw rod through the forward and reverse rotation of the stirring rod two 2, further improving the mixing efficiency and effect.

[0020] A receiving hopper 18 can also be arranged in the mixing tank 1. The receiving hopper 18 is matched with the mildew preventive feeding port 6. The receiving hopper 18 is connected to the stirring rod two 2 through a support rod 20. A weight sensor 19 (a weighing sensor with the model CPR120 can be adopted) is provided at the bottom of the receiving hopper 18. A wire channel one 21 and a wire channel two 22 are respectively arranged along the central axis in the support rod 20 and the stirring rod two 2. The wire channel one 21 is communicated with the wire channel two 22. The wire channel two 22 extends to one end of the stirring rod two 2. The wire 23 connected to the weight sensor 19 passes through the wire channel one 21 and the wire channel two 22 in sequence and is connected to an external power supply through a slip ring. The weight sensor 19 is electrically connected to the motor two 4. This setting can further weigh the liquid mildew preventive falling into the mixing tank 1, further ensuring the accuracy of the added amount. The receiving hopper 18 rotates with the stirring rod two 2, enabling the liquid mildew preventive to be fully mixed with the material.

[0021] Working principle: When in use, the liquid mildew preventive enters the storage tank through the liquid inlet for storage. When it is necessary to add the liquid mildew preventive into the mixing tank, Motor 1 drives the stirring rod 1 to rotate, stirring the liquid mildew preventive to ensure its uniformity. The material to which the liquid mildew preventive is to be added enters the mixing tank through the material inlet. At this time, if there is a receiving hopper in the mixing tank, the receiving hopper is located directly below the mildew preventive feed inlet, and Motor 2 does not rotate. Subsequently, the mildew preventive feed inlet is opened, and the liquid mildew preventive enters the mixing tank and lands on the receiving hopper. The flowmeter and the weight sensor detect the amount of the mildew preventive and transmit the data to the controller. Taking the data that first reaches the preset range as the standard, then the mildew preventive feed inlet is closed, and Motor 2 drives the stirring rod 2 to rotate, stirring and mixing the material and the liquid mildew preventive until the values of Concentration Meter 1 and Concentration Meter 2 are equal, thus completing the addition and mixing of the liquid mildew preventive. Then, the discharge port is opened to discharge the material.

[0022] If there is no receiving hopper in the mixing tank, then Motor 2 rotates, and the stirring rod 2 continuously rotates. The mildew preventive feed inlet is opened, and the liquid mildew preventive enters the mixing tank. The flowmeter detects the amount of the incoming mildew preventive and transmits the data to the controller. After the data reaches the preset range, the mildew preventive feed inlet is closed, and the stirring rod 2 continues to rotate, stirring and mixing the material and the liquid mildew preventive until the values of Concentration Meter 1 and Concentration Meter 2 are equal, thus completing the addition and mixing of the liquid mildew preventive. Then, the discharge port is opened to discharge the material.

[0023] The controller is a single-chip microcomputer controller, and the Siemens S7-1200 PLC controller can be used. It is communicatively connected to Concentration Meter 1, Concentration Meter 2, the weight sensor, the forward and reverse motor, Motor 1, the flowmeter, and each electric switch valve through a conversion module. The conversion module uses the RS485 communication module. The single-chip microcomputer controller includes a data processing module and a display module communicatively connected thereto, etc. The data processing module transmits the data of Concentration Meter 1, Concentration Meter 2, the weight sensor, and the flowmeter collected in real time to the display for immediate display, and controls the states of the forward and reverse motor and each electric switch valve based on the analysis of each data.

[0024] Regarding the single-chip microcomputer controller in this embodiment, this application does not improve the programmable program of the controller, but only utilizes its existing control program and principle to implement the functions of data calculation, analysis, and comparison; regarding the control program and principle involved, reference can be made to the product manual of the controller or existing technical materials, which are all prior arts.

[0025] The embodiments of the present utility model have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations will be obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automatic adding device for liquid mildew-proof agent, comprising a mixing tank; characterized in that: The mixing tank is a horizontal cylindrical shape. The mixing tank is provided with a material inlet, and one end of the mixing tank is provided with a mildew preventive agent inlet, and the other end of the mixing tank is provided with a discharge port. The mildew preventive agent inlet is connected to a storage tank. A flow meter is provided at the mildew preventive agent inlet. A stirring rod I is provided in the storage tank. The stirring rod I is connected to a motor I. Stirring blades I are fixed on the stirring rod I. A stirring rod II is provided in the mixing tank. The stirring rod II is connected to a motor II. Stirring blades II are fixed on the stirring rod II. The stirring rod II is connected with a scraping rod through a fixing rod. The scraping rod contacts the inner wall of the mixing tank. Electric switch valves are provided at the discharge port, the material inlet and the mildew preventive agent inlet.

2. The automatic adding device for liquid mildew preventive according to claim 1, characterized in that: A controller is provided on the mixing tank. The flow meter, the motor I, the motor II and each electric switch valve are electrically connected to the controller.

3. The automatic adding device for liquid mildew preventive according to claim 2, wherein: A concentration meter I is provided at the lower part of the side wall of one end of the mixing tank, and a concentration meter II is provided at the upper part of the side wall of the other end of the mixing tank. The concentration meter I and the concentration meter II are both connected to the controller.

4. An automatic adding device for a liquid mildew preventive, as claimed in claim 1, wherein: The stirring rod II is a feeding screw, and the motor II is a forward and reverse motor.

5. An automatic adding device for liquid mildew preventive according to claim 1, wherein: A receiving hopper is provided in the mixing tank. The receiving hopper cooperates with the mildew preventive agent inlet. The receiving hopper is connected to the stirring rod II through a support rod. A weight sensor is provided at the bottom of the receiving hopper. A wire channel I and a wire channel II are respectively provided along the central axis in the support rod and the stirring rod II. The wire channel I communicates with the wire channel II. The wire channel II extends to one end of the stirring rod II. The wire connected to the weight sensor sequentially passes through the wire channel I and the wire channel II and then is connected to an external power supply through a slip ring. The weight sensor is electrically connected to the motor II.

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