An automatic quantitative feeding stirring tank

Abstract

The utility model discloses an automatic quantitative feeding's stirring tank relates to stirring equipment technical field, including stirring tank main part. The upper surface middle part of stirring tank main part is installed with the stirring motor, and the upper surface of stirring tank main part is provided with PLC controller in the position of being close to the front, the upper surface right side of stirring tank main part is provided with electric control valve, and electric control valve is composed by butterfly valve, servo motor and worm reducer. This automatic quantitative feeding's stirring tank compares with the stirring tank with feeding device of ordinary current, through the setting of pressure disc, can make the auger drive pipe to feed the stirring tank main part when, can make the auger drive pipe to feed the pressure disc, when the pressure reaches certain numerical value, makes the pressure disc to press the trigger switch to excite PLC controller to control the servo motor in electric control valve, controls the rotation of butterfly valve and opens the valve to complete quantitative feeding, so that it can high -efficient feeding, at the same time, makes each feeding weight more accurate and uniform.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, specifically to an automatic quantitative mixing tank. Background Technology

[0002] In the material mixing and processing of industries such as chemicals, food, pharmaceuticals, and building materials, mixing tanks are indispensable key equipment. Early traditional mixing tanks relied heavily on manual operation for material addition, with operators using experience and simple measuring tools (such as scales and measuring cylinders) to add materials into the tank. This method has significant drawbacks: manual operation is inefficient and cannot meet the needs of large-scale continuous production; moreover, human factors have a large impact, resulting in low measurement accuracy and easily leading to fluctuations in product quality. The component ratios of the same batch of products may deviate, affecting product stability and consistency. With technological advancements, some mixing tanks have incorporated simple mechanical metering devices, such as volumetric metering devices, which control the volume of the container to achieve quantitative material addition.

[0003] For example, patent application number 202223014546.1 discloses a mixing tank with a feeding device. This utility model relates to the field of mixing equipment technology, specifically a mixing tank with a feeding device, including a mixing tank body, a stirring motor installed on the top of the mixing tank body, and a feeding trough installed on one side of the stirring motor. Compared with the prior art, this mixing tank with a feeding device can push the feeding pipe upward by activating a servo cylinder, thereby pushing the sealing cover plate upward. Then, by rotating the sealing cover plate around the rotating column, the feeding pipe can be exposed, which facilitates the opening of the mixing tank's inlet and the addition of chemical raw materials inside the mixing tank. However, this mixing tank with a feeding device can only quantitatively feed simple materials. This method is only suitable for materials with good flowability and uniform density. For materials with complex powder characteristics, it is difficult to guarantee quantitative accuracy. Moreover, once the material characteristics change, such as the powder becoming damp and clumping, the quantitative error will further increase, which cannot meet the requirements of modern industry for high-precision batching.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings and proposed an automatic quantitative feeding mixing tank. Utility Model Content

[0005] The purpose of this invention is to provide an automatically metered mixing tank to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic quantitative feeding mixing tank, comprising a mixing tank body. A stirring motor is installed in the middle of the upper surface of the mixing tank body, and a PLC controller is located at the front of the upper surface of the mixing tank body. An electrically controlled valve is located on the right side of the upper surface of the mixing tank body, and the electrically controlled valve consists of a butterfly valve, a servo motor, and a worm gear reducer. A feeding pipe is located on the upper surface of the electrically controlled valve, and an auger drive pipe is located on the upper surface of the feeding pipe. A connecting ring is spirally installed on the inner surface of the end of the auger drive pipe, and a connecting cap is located at the end of the connecting ring.

[0007] Preferably, a sliding rod is slidably installed through the surface of the connecting cover, and a pressure plate is provided on the lower surface of the sliding rod, and the pressure plate and the inner surface of the connecting ring are slidably connected.

[0008] Preferably, trigger switches are installed on both sides of the surface of the pressure plate, and vent holes are opened on the surface of the pressure plate.

[0009] Preferably, a pressure relief valve is provided on the upper outer surface of the auger drive tube, and a feed hopper is provided on the lower outer surface of the auger drive tube.

[0010] Preferably, the upper outer surface of the sliding rod is provided with a pressure adjusting spring, and the lower surface of the pressure adjusting spring is provided with a sliding sleeve, and the sliding sleeve and the sliding rod are configured to slide together.

[0011] Preferably, the outer surface of the end of the sliding rod is provided with a threaded groove, and an adjusting sleeve is spirally installed on the outer surface of the threaded groove, and the adjusting sleeve and the adjusting spring are configured as a friction connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the arrangement of a mixing tank body, a mixing motor, a PLC controller, an electrically controlled valve, a feeding pipe, an auger drive pipe, a feeding hopper, a connecting cover, a connecting ring, a sliding rod, a pressure plate, and a trigger switch, allows the auger drive pipe to drive the material to squeeze the pressure plate when feeding the mixing tank body through the auger drive pipe. When the pressure reaches a certain value, the pressure plate presses the trigger switch to activate the PLC controller, which in turn controls the servo motor inside the electrically controlled valve to rotate and open the valve to complete the quantitative feeding. This allows for efficient feeding while ensuring that the weight of each feeding is more accurate and uniform. 2. This utility model, through the setting of a pressure relief valve, a vent hole, a sliding sleeve, a pressure adjusting spring, a threaded groove, and a pressure adjusting sleeve, allows for the adjustment of the pressure threshold of the pressure adjusting spring by rotating along the threaded groove, thereby adjusting the feeding amount. The pressure relief valve can release pressure when the pressure of the material squeezed by the auger drive tube is too high, thus protecting the auger drive tube. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the auger drive tube of this utility model; Figure 3 This is a three-dimensional structural diagram of the connecting ring of this utility model; Figure 4 This is a three-dimensional structural diagram of the pressure plate of this utility model.

[0014] In the diagram: 1. Mixing tank body; 101. Mixing motor; 102. PLC controller; 2. Electrically controlled valve; 201. Feeding pipe; 202. Screwdriver drive pipe; 203. Feed hopper; 204. Connecting cover; 205. Connecting ring; 206. Sliding rod; 207. Pressure plate; 208. Trigger switch; 3. Pressure relief valve; 301. Vent hole; 302. Sliding sleeve; 303. Pressure regulating spring; 304. Threaded groove; 305. Pressure regulating sleeve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-4 As shown, an automatic quantitative feeding mixing tank includes a mixing tank body 1), a stirring motor 101 installed in the middle of the upper surface of the mixing tank body 1), a PLC controller 102 located at the front of the upper surface of the mixing tank body 1), and an electrically controlled valve 2) located on the right side of the upper surface of the mixing tank body 1). The electrically controlled valve 2) is composed of a butterfly valve, a servo motor, and a worm gear reducer. In this technical solution, by setting the electrically controlled valve 2), the servo motor inside the electrically controlled valve 2) can be controlled by the PLC controller 102 to control the opening and closing of the butterfly valve.

[0017] Furthermore, the upper surface of the electrically controlled valve 2) is provided with a feeding pipe 201), and the upper surface of the feeding pipe 201) is provided with an auger drive pipe 202. This technical solution can stably feed materials through the setting of the feeding pipe 201).

[0018] Furthermore, a connecting ring 205 is spirally installed on the inner surface of the end of the auger drive tube 202), and a connecting cover 204 is provided at the end of the connecting ring 205). With this technical solution, the connecting cover 204 can be rotated out of the auger drive tube 202 by means of the connecting ring 205 to perform inspection and maintenance on the pressure plate 207 and the trigger switch 208.

[0019] Furthermore, a sliding rod 206 is slidably installed through the surface of the connecting cover 204), and a pressure plate 207 is provided on the lower surface of the sliding rod 206). The pressure plate 207 and the inner surface of the connecting ring 205 are slidably connected. With this technical solution, the pressure plate 207 can be used to drive the material to squeeze the pressure plate 207 when the material is fed to the mixing tank body 1 through the auger drive pipe 202). When the pressure reaches a certain value, the pressure plate 207 presses the trigger switch 208 to activate the PLC controller 102 to control the servo motor inside the electric control valve 2), control the butterfly valve to rotate and open the valve to complete the quantitative feeding. This allows for efficient feeding while making the weight of each feeding more accurate and uniform.

[0020] Furthermore, trigger switches 208 are installed on both sides of the surface of the pressure plate 207), and vent holes 301 are opened on the surface of the pressure plate 207. This technical solution facilitates the sliding exhaust of the pressure plate 207 through the setting of the vent holes 301.

[0021] Furthermore, a pressure relief valve 3 is provided on the upper outer surface of the auger drive pipe 202), and a feed hopper 203 is provided on the lower outer surface of the auger drive pipe 202). This technical solution, through the setting of the pressure relief valve 3), can release pressure when the pressure of the auger drive pipe 202 extruding the material is too high, thereby protecting the auger drive pipe 202.

[0022] Furthermore, a pressure regulating spring 303 is provided on the upper outer surface of the sliding rod 206), and a sliding sleeve 302 is provided on the lower surface of the pressure regulating spring 303). The sliding sleeve 302 and the sliding rod 206 are configured to slide. With this technical solution, the sliding direction of the pressure plate 207 can be limited by the sliding of the sliding rod 206, so as to prevent it from deviating during the displacement process.

[0023] Furthermore, the outer surface of the end of the sliding rod 206 is provided with a threaded groove 304, and a pressure adjusting sleeve 305 is spirally installed on the outer surface of the threaded groove 304. The pressure adjusting sleeve 305 and the pressure adjusting spring 303 are configured to be in friction connection. In this technical solution, by setting the pressure adjusting sleeve 305, the pressure threshold of the pressure adjusting spring 303 can be adjusted by rotating along the threaded groove 304 to press the pressure adjusting spring 303, thereby achieving the purpose of adjusting the feeding amount.

[0024] Working principle: When using this automatic quantitative feeding mixing tank, firstly, before starting the mixing tank body (1), the operator can precisely adjust the preload of the pressure regulating spring (303) by rotating the sliding sleeve (302) of the pressure regulating mechanism along the threaded groove (304) according to the production formula requirements. This operation directly sets the system's pressure trigger threshold, forming a customizable material conveying control mechanism.

[0025] After the material enters the auger drive tube (202) through the feed hopper (203), the rotating spiral blades generate axial thrust, causing the material to be conveyed to the end and gradually forming accumulation pressure. When the material's extrusion pressure on the pressure plate (208) reaches a preset threshold, the pressure regulating spring (303) undergoes elastic deformation, causing the sliding rod (206) to move upward. This displacement triggers the trigger switch (207) installed at the top, converting the pressure signal into an electrical signal and transmitting it to the PLC controller (102).

[0026] Upon receiving the trigger signal, the PLC controller (102) immediately starts the closed-loop control program: first, it drives the servo motor of the electrically controlled valve (2) to rotate at a set speed, and converts the high speed into the precise angular displacement of the butterfly valve through the worm gear reduction mechanism. When the butterfly valve opens to the preset angle, the feeding pipe (201) is connected, and the quantitative material enters the main body of the mixing tank (1) under the action of gravity and the residual pressure of the screw.

[0027] At the same time, the pressure inside the auger drive tube (202) drops sharply, the pressure regulating spring (303) pushes the pressure plate (208) back to the initial position, and the trigger switch (207) then sends a closing signal. The PLC controller (102) responds and controls the servo motor to reverse, so that the butterfly valve quickly returns to the closed state, completing a complete quantitative feeding cycle.

[0028] This system achieves a quantitative accuracy within ±2% through the synergy of mechanical pressure regulation and electronic control, making it particularly suitable for production scenarios requiring precise proportions, such as food additives and chemical intermediates. Its core innovation lies in converting the continuous pressure of the screw conveyor into a switching control signal, thus forming a dynamically adaptive material conveying mechanism.

[0029] The system's scalable design allows for easy adaptation to different material characteristics and production cycle requirements by modifying PLC program parameters. This enables quantitative accuracy adjustment while maintaining hardware consistency, significantly improving production flexibility. This is the working principle of the automatic quantitative feeding mixing tank.

Claims

1. An automatically metered mixing tank, comprising a mixing tank body (1), characterized in that, A stirring motor (101) is installed in the middle of the upper surface of the mixing tank body (1), and a PLC controller (102) is set at the front position of the upper surface of the mixing tank body (1). An electric control valve (2) is set on the right side of the upper surface of the mixing tank body (1), and the electric control valve (2) is composed of a butterfly valve, a servo motor and a worm gear reducer. A feeding pipe (201) is set on the upper surface of the electric control valve (2), and an auger drive pipe (202) is set on the upper surface of the feeding pipe (201). A connecting ring (205) is spirally installed on the inner surface of the end of the auger drive pipe (202), and a connecting cover (204) is set at the end of the connecting ring (205).

2. The mixing tank for automatic quantitative feeding according to claim 1, characterized in that, A sliding rod (206) is slidably installed through the surface of the connecting cover (204), and a pressure plate (207) is provided on the lower surface of the sliding rod (206), and the pressure plate (207) and the inner surface of the connecting ring (205) are slidably connected.

3. The mixing tank for automatic quantitative feeding according to claim 2, characterized in that, Trigger switches (208) are installed on both sides of the surface of the pressure plate (207), and vent holes (301) are opened on the surface of the pressure plate (207).

4. The mixing tank for automatic quantitative feeding according to claim 1, characterized in that, The upper outer surface of the auger drive tube (202) is provided with a pressure relief valve (3), and the lower outer surface of the auger drive tube (202) is provided with a feed hopper (203).

5. The mixing tank for automatic quantitative feeding according to claim 2, characterized in that, The upper outer surface of the sliding rod (206) is provided with a pressure adjusting spring (303), and the lower surface of the pressure adjusting spring (303) is provided with a sliding sleeve (302), and the sliding sleeve (302) and the sliding rod (206) are configured to slide together.

6. The mixing tank for automatic quantitative feeding according to claim 2, characterized in that, The outer surface of the end of the sliding rod (206) is provided with a threaded groove (304), and a pressure adjusting sleeve (305) is spirally installed on the outer surface of the threaded groove (304), and the pressure adjusting sleeve (305) and the pressure adjusting spring (303) are configured to be frictionally connected.

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