Automatic stirring device based on PLC

Abstract

The utility model discloses an automatic stirring device based on a PLC (Programmable Logic Controller). The automatic stirring device comprises a stirring tank, a stirring tank base, a first feeding hopper, a second feeding hopper, a stirring mechanism, an ejector, an air pump and the PLC, the stirring tank comprises a tank body and a tank body cover, and the tank body and the tank body cover are connected through a flange; the tank body is fixed on the stirring tank base; the air pump and the PLC are arranged beside the stirring tank; the first feeding hopper and the second feeding hopper are communicated with the stirring tank; a stirring motor and a stirring rod are arranged in the stirring mechanism; the stirring motor is fixed on the tank body cover; the stirring rod is coupled in the tank body; the first feeding hopper and the second feeding hopper are respectively used for containing paint for mixing, and the paint entering the tank body from the first feeding hopper and the second feeding hopper is controlled by a feeding flow valve; and the ejector drains the lower-layer paint in the tank body to the upper layer of the tank body. According to the technical scheme, paint is mixed uniformly, and the quality of sold water-based paint is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lacquer paint mixing and stirring equipment technical field, concretely relates to an automatic stirring device based on PLC. BACKGROUND

[0002] Water-based paint, water-based anti-rust paint, water-based steel structure paint, one of which is a water-based paint with acrylic and polyurethane as main components, which needs 2 or more additional substances to be mixed in organic solvents during preparation, so that the emulsion flowability and uniformity of the product are better. The traditional stirring method is to pour the material directly into the container and rely on the single rod stirrer to stir in the container. However, different components of paint require different stirring intensity, and improper stirring will cause uneven mixing and stratification of paint. SUMMARY

[0003] The purpose of the present application is to solve the above problems, and provide an automatic stirring device based on PLC.

[0004] An automatic stirring device based on PLC, comprising: a stirring tank, a stirring tank base, a first feeding hopper, a second feeding hopper, a stirring mechanism, a jet device, an air pump, and a PLC controller.

[0005] The tank body and the tank cover are connected by a flange; the tank body is fixed on the stirring tank base; the air pump and the PLC controller are arranged beside the stirring tank; a circulating feed pipe is arranged at the upper end of the tank body; the first feed pipe and the second feed pipe are arranged at both sides of the upper end of the tank body; the first feeding hopper is connected to the first feed pipe through the first feed flow valve; the second feeding hopper is connected to the second feed pipe through the second feed flow valve; the lower end of the tank body is a conical part; a circulating discharge pipe is arranged at the lower end of the conical part; the tank discharge pipe is arranged at one side of the lower end of the conical part; and the discharge valve is arranged at the tank discharge pipe.

[0006] The stirring mechanism comprises a stirring motor and a stirring rod; the stirring motor is fixed on the tank cover; the stirring rod is connected to the tank body; the circulating feed pipe, the circulating discharge pipe, and the gas output pipe of the air pump are connected to the jet device; the PLC controller is electrically connected to the first feed flow valve, the second feed flow valve, the discharge valve, and the stirring motor; the stirring motor drives the stirring rod to rotate; the first feeding hopper and the second feeding hopper contain mixed paint; the first feed flow valve and the second feed flow valve control the flow rate of the paint entering the tank body; and the jet device guides the lower layer of paint in the tank body to the upper layer of the tank body.

[0007] The tank body cover is provided with an exhaust valve at the center, and the exhaust valve is provided with a first motor fixing part and a second motor fixing part on both sides; the inside of the tank body conical part is provided with a first shaft hole and a second shaft hole; the position of the first shaft hole corresponds to the position of the first motor fixing part; the position of the second shaft hole corresponds to the position of the second motor fixing part.

[0008] The stirring motor is divided into a first stirring motor and a second stirring motor, and the stirring rod is divided into a first stirring rod and a second stirring rod; the first stirring motor is fixed on the first motor fixing part; the top end of the first stirring rod is fixedly connected with the rotor of the first stirring motor; the lower end of the first stirring rod is connected with the first shaft hole; the second stirring motor is fixed on the second motor fixing part; the top end of the second stirring rod is fixedly connected with the rotor of the second stirring motor; the lower end of the second stirring rod is connected with the second shaft hole; the first stirring motor drives the first stirring rod to rotate; and the second stirring motor drives the second stirring rod to rotate.

[0009] The jet flow device is a Venturi jet flow device; one end of the jet flow device is provided with a working fluid access pipe, and the other end of the jet flow device is provided with a mixed fluid ejection pipe; a negative pressure cavity and a mixed throat pipe part are arranged between the working fluid access pipe and the mixed fluid ejection pipe; the working fluid access pipe, the negative pressure cavity, the mixed throat pipe part and the mixed fluid ejection pipe are sequentially communicated; a flow guide pipe is arranged at the lower end of the jet flow device; the flow guide pipe is in pipeline communication with the negative pressure cavity; a gas pump injects high-pressure gas as working fluid into the working fluid access pipe; the other end of the working fluid access pipe is provided with a working fluid nozzle, and the working fluid nozzle is arranged at the mixed throat pipe part; the mixed fluid ejection pipe is in pipeline communication with a circulating feed pipe; a circulating discharge pipe is in pipeline communication with the flow guide pipe through a circulating extension pipe.

[0010] The technical scheme provides an automatic stirring device based on PLC, which comprises a stirring tank, a stirring tank base, a first feeding hopper, a second feeding hopper, a stirring mechanism, a jet flow device, a gas pump and a PLC controller. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the whole schematic diagram of the automatic stirring device based on PLC.

[0012] Fig. 2It is the stirring tank schematic view of the automatic stirring device based on PLC of the utility model;

[0013] Fig. 3 It is the stirring tank sectional view of the automatic stirring device based on PLC of the utility model;

[0014] Fig. 4 It is the jet flow ware structure schematic view of the automatic stirring device based on PLC of the utility model;

[0015] In the figure: 11, tank body, 111, tank body support ring, 112, tank body conical part, 1121, first shaft hole, 1122, second shaft hole, 113, heat insulation cavity, 114, circulating feed pipe, 115, circulating discharge pipe, 116, spiral convex edge, 117, circulating extension pipe, 12, tank body cover, 121, exhaust valve, 13, first feed pipe, 14, first feed flow valve, 15, second feed pipe, 16, second feed flow valve, 17, tank body discharge pipe, 18, discharge valve, 2, stirring tank base, 3, first feeding hopper, 4, second feeding hopper, 51, first stirring motor, 52, first stirring rod, 53, second stirring motor, 54, second stirring rod, 6, jet flow ware, 61, working fluid access pipe, 611, working fluid nozzle, 62, mixed fluid ejection pipe, 63, negative pressure cavity, 64, mixed throat pipe part, 65, drainage pipe, 7, air pump, 8, PLC controller. DETAILED DESCRIPTION

[0016] The technical scheme will be further clearly and completely described below in combination with the drawings of the technical scheme, and the described embodiments are only a part of the technical scheme, but not all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor based on the technical scheme belong to the protection scope of the utility model. EMBODIMENT

[0017] Referring to Figs. 1 to 4 As shown in the figure, an automatic stirring device based on PLC, it includes: stirring tank, stirring tank base 2, first feeding hopper 3, second feeding hopper 4, stirring mechanism, jet flow ware 6, air pump 7, PLC controller 8;

[0018] The stirring tank includes: tank body 11, tank body cover 12, first feed pipe 13, first feed flow valve 14, second feed pipe 15, second feed flow valve 16, tank body discharge pipe 17, discharge valve 18;

[0019] The top of the tank body 11 is provided with a tank flange; the edge of the tank cover 12 is provided with a cover flange, the center of the tank cover 12 is provided with an exhaust valve 121, the two sides of the exhaust valve 121 are respectively provided with a first motor fixing part and a second motor fixing part; the tank flange and the cover flange are connected by bolt locking; that is, the tank body 11 and the tank cover 12 are connected by flange;

[0020] The first feeding pipe 13 and the second feeding pipe 15 are arranged on the two sides of the upper end of the tank body 11; the middle part of the tank body 11 is provided with a tank support ring 111, and the lower end of the tank body 11 is a tank conical part 112;

[0021] The tank discharge pipe 17 is arranged at one side of the lower end of the tank conical part 112; the first feeding hopper 3 is in pipeline communication with the first feeding pipe 13 through the first feeding flow valve 14; the second feeding hopper 4 is in pipeline communication with the second feeding pipe 15 through the second feeding flow valve 16; the discharge valve 18 is arranged at the tank discharge pipe 17;

[0022] The tank body 11 is provided with a heat insulation cavity 113; the upper end of the tank body 11 is provided with a circulating feeding pipe 114; the lower end of the tank conical part 112 is provided with a circulating discharge pipe 115; the inner side wall of the tank body 11 is provided with a plurality of spiral protrusions 116;

[0023] The inner side of the tank conical part 112 is provided with a first shaft hole 1121 and a second shaft hole 1122; the position of the first shaft hole 1121 corresponds to the position of the first motor fixing part; the position of the second shaft hole 1122 corresponds to the position of the second motor fixing part;

[0024] The first feeding flow valve 14, the second feeding flow valve 16 and the discharge valve 18 are all electromagnetic control valves.

[0025] The upper end of the stirring tank base 2 is provided with an annular support bracket 21, and the lower end of the stirring tank base 2 is provided with an annular stabilizing bracket 22; the tank support ring 111 is supported on the annular support bracket 21; the annular stabilizing bracket 22 is sleeved on the lower edge of the tank body 11.

[0026] The stirring mechanism comprises a first stirring motor 51, a first stirring rod 52, a second stirring motor 53 and a second stirring rod 54.

[0027] The first stirring motor 51 is fixed in the first motor fixing part; the top end of the first stirring rod 52 is fixedly connected with the rotor of the first stirring motor 51; the lower end of the first stirring rod 52 is shaft-connected in the first shaft hole 1121; the second stirring motor 53 is fixed in the second motor fixing part; the top end of the second stirring rod 54 is fixedly connected with the rotor of the second stirring motor 53; the lower end of the second stirring rod 54 is shaft-connected in the second shaft hole 1122;

[0028] The first stirring rod 52 and the second stirring rod 54 are structurally identical, and the first stirring rod 52 and the second stirring rod 54 are each provided with helical stirring blades.

[0029] The jet flow device 6 is a Venturi jet flow device; one end of the jet flow device 6 is provided with a working fluid access pipe 61, and the other end of the jet flow device 6 is provided with a mixed fluid ejection pipe 62; a negative pressure cavity 63 and a mixed throat pipe part 64 are arranged between the working fluid access pipe 61 and the mixed fluid ejection pipe 62; the working fluid access pipe 61, the negative pressure cavity 63, the mixed throat pipe part 64 and the mixed fluid ejection pipe 62 are sequentially communicated; the lower end of the jet flow device 6 is provided with a flow guide pipe 65; the flow guide pipe 65 is in pipeline communication with the negative pressure cavity 63;

[0030] One end of the working fluid access pipe 61 is in pipeline communication with the air pump 7, and the air pump 7 injects high-pressure gas as working fluid into the working fluid access pipe 61; in this embodiment, the air pump can also be a water pump, and the mixed paint is injected by using a water-based solvent through the working fluid access pipe 61;

[0031] The other end of the working fluid access pipe 61 is provided with a working fluid nozzle 611, and the working fluid nozzle 611 is arranged at the mixed throat pipe part 64;

[0032] The port diameter of the working fluid nozzle 611 is smaller than the port diameter of the other end of the working fluid access pipe 61;

[0033] The mixed fluid ejection pipe 62 is in pipeline communication with the circulating feed pipe 114; the circulating discharge pipe 115 is in pipeline communication with the flow guide pipe 65 through the circulating extension pipe 117.

[0034] The air pump 7 and the PLC controller 8 are arranged on one side of the stirring tank; the PLC controller 8 is electrically connected with the first feed flow valve 14, the second feed flow valve 16, the discharge valve 18, the first stirring motor 51, the second stirring motor 53 and the air pump 7; the PLC controller 8 can separately control the first feed flow valve 14, the second feed flow valve 16, the discharge valve 18, the first stirring motor 51, the second stirring motor 53 and the air pump 7.

[0035] The first feed flow valve 14 and the second feed flow valve 16 control the flow rate of the two paints entering the tank body 11, the first stirring motor 51 and the second stirring motor 53 can drive rotation at the same speed or at different speeds; the first stirring rod 52 and the second stirring rod 54 stir the mixed paint; during the paint mixing process, the air pump 7 injects air or paint-making solvent into the tank body 11 through the jet flow device 6.

Claims

1. A PLC-based automatic stirring device, comprising: The utility model relates to a paint mixing device, which comprises a stirring tank, a stirring tank base (2), a first feeding hopper (3), a second feeding hopper (4), a stirring mechanism, a fluidic device (6), a gas pump (7), and a PLC controller (8). The stirring tank comprises a tank body (11), a tank body cover (12), a first feeding pipe (13), a first feeding flow valve (14), a second feeding pipe (15), a second feeding flow valve (16), a tank body discharge pipe (17), and a discharge valve (18). The tank body (11) and the tank body cover (12) are connected through flanges; the tank body (11) is fixed on the stirring tank base (2); the gas pump (7) and the PLC controller (8) are arranged beside the stirring tank; the upper end of the tank body (11) is provided with a circulating feeding pipe (114); the first feeding pipe (13) and the second feeding pipe (15) are arranged on the two sides of the upper end of the tank body (11); the first feeding hopper (3) is in pipeline communication with the first feeding pipe (13) through the first feeding flow valve (14); the second feeding hopper (4) is in pipeline communication with the second feeding pipe (15) through the second feeding flow valve (16); the lower end of the tank body (11) is a tank body tapered portion (112); the lower end of the tank body tapered portion (112) is provided with a circulating discharge pipe (115); the tank body discharge pipe (17) is arranged on one side of the lower end of the tank body tapered portion (112); the discharge valve (18) is arranged at the tank body discharge pipe (17).

2. The PLC based automatic stirrer device as claimed in claim 1 wherein: The stirring mechanism is provided with a stirring motor and a stirring rod; the stirring motor is fixed on the tank body cover (12); the stirring rod is shaft-connected in the tank body (11); the circulating feeding pipe (114), the circulating discharge pipe (115), and the gas output pipe of the gas pump (7) are in pipeline communication with the fluidic device (6); the PLC controller (8) is electrically connected with the first feeding flow valve (14), the second feeding flow valve (16), the discharge valve (18), and the stirring motor; the stirring motor drives the stirring rod to rotate; the first feeding hopper (3) and the second feeding hopper (4) respectively contain mixed paint; the first feeding flow valve (14) and the second feeding flow valve (16) control the flow rate of the paint entering the tank body (11); the fluidic device (6) guides the lower layer paint in the tank body (11) to the upper layer of the tank body (11).

3. The PLC based automatic stirrer device as claimed in claim 2, wherein: The tank body cover (12) is provided with an exhaust valve (121) at the center; the two sides of the exhaust valve (121) are respectively provided with a first motor fixing portion and a second motor fixing portion; the inner side of the tank body tapered portion (112) is provided with a first shaft connection hole (1121) and a second shaft connection hole (1122); the position of the first shaft connection hole (1121) corresponds to the position of the first motor fixing portion; the position of the second shaft connection hole (1122) corresponds to the position of the second motor fixing portion. The stirring motor is divided into a first stirring motor (51) and a second stirring motor (53); the stirring rod is divided into a first stirring rod (52) and a second stirring rod (54); the first stirring motor (51) is fixed on the first motor fixing portion; the top end of the first stirring rod (52) is fixedly connected with the rotor of the first stirring motor (51); the lower end of the first stirring rod (52) is shaft-connected in the first shaft connection hole (1121). The second stirring motor (53) is fixed on the second motor fixing part; the top end of the second stirring rod (54) is fixedly connected with the rotor of the second stirring motor (53); the lower end of the second stirring rod (54) is connected with the second shaft connecting hole (1122); the first stirring motor (51) drives the first stirring rod (52) to rotate; and the second stirring motor (53) drives the second stirring rod (54) to rotate.

4. The PLC based automatic stirrer device as claimed in claim 3, wherein: The jet flow device (6) is provided with a working fluid inlet pipe (61) at one end, and a mixed fluid outlet pipe (62) at the other end; a negative pressure cavity (63) and a mixed throat pipe part (64) are arranged between the working fluid inlet pipe (61) and the mixed fluid outlet pipe (62); the working fluid inlet pipe (61), the negative pressure cavity (63), the mixed throat pipe part (64) and the mixed fluid outlet pipe (62) are sequentially communicated; a flow guide pipe (65) is arranged at the lower end of the jet flow device (6); the flow guide pipe (65) is in pipeline communication with the negative pressure cavity (63); the air pump (7) injects high-pressure gas as working fluid into the working fluid inlet pipe (61); the working fluid inlet pipe (61) is provided with a working fluid nozzle (611) at the other end, and the working fluid nozzle (611) is arranged at the mixed throat pipe part (64); the mixed fluid outlet pipe (62) is in pipeline communication with the circulating feeding pipe (114); the circulating discharging pipe (115) is in pipeline communication with the flow guide pipe (65) through a circulating extension pipe (117); and the air pump (7) injects air or paint solvent into the tank (11) through the jet flow device (6).

Images