Centrifugal roller cold type coating batching device and automatic batching and spraying system

Abstract

The utility model discloses a centrifugal roller cold type coating batching device and an automatic batching spraying system, and belongs to the technical field of roller auxiliary production. The batching device comprises a stock bin, a thick material stirring tank and a thin material stirring tank which are arranged in a layered manner; weighing modules are arranged at the bottoms of the thick material stirring tank and the thinner stirring tank, water conveying pipelines are arranged at the bottoms of the thick material stirring tank and the thinner stirring tank respectively to supply water to the thick material stirring tank and the thinner stirring tank, the stock bin conveys material powder to the thick material stirring tank and the thinner stirring tank through pipelines, and the thick material stirring tank conveys material liquid to the thinner stirring tank through a pipeline. And a plurality of valves are arranged on the material liquid conveying pipeline and the water conveying pipeline. The automatic batching and spraying system comprises a centrifugal roller cold type coating batching device, an automatic temperature measuring device and an automatic spraying machine; and the centrifugal roller cold type coating batching device, the automatic temperature measuring device and the automatic spraying machine are uniformly controlled by the PLC control system. The whole burdening and spraying process is automatically controlled by the PLC, the burdening precision is improved, the spraying effect is improved, and labor is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller auxiliary production, and specifically relates to a centrifugal roller cold type coating batching device and a centrifugal roller cold type coating batching spraying system. Background Art

[0002] During the production process of centrifugal rollers, the middle roller body is sprayed with refractory coating on the cold mold made of metal to isolate the molten iron. The spraying effect directly affects the surface quality of the roller body. The spraying process is to prepare the coating according to different process requirements, pour it into the coating tank after preparation, and the coating is atomized by the nozzle under the pressure in the coating tank and sprayed onto the inner surface of the cold mold. Patent CN201823654U discloses an automatic roller cold mold coating sprayer, which can realize automation during spraying. However, the entire production process still requires manual operation of batching and feeding, which has large batching errors, poor wind pressure control stability, and arbitrary manual recording of main parameters such as spraying temperature and thickness, and high cost of using nozzles. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a centrifugal roller cold type coating batching device and a centrifugal roller cold type coating batching spraying system. The whole process is automatically controlled by PLC, which improves the batching accuracy and spraying effect and saves labor.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A centrifugal roller cold type coating batching device comprises a silo, a thick material stirring tank and a thin material stirring tank arranged in layers, wherein the thick material stirring tank and the thin material stirring tank are provided with weighing modules at the bottom and water pipelines are provided respectively to supply water to the thick material stirring tank and the thin material stirring tank, the silo conveys material powder to the thick material stirring tank and the thin material stirring tank respectively through pipelines, the thick material stirring tank conveys material liquid to the thin material stirring tank through pipelines, and a plurality of valves are provided on the pipelines for conveying material liquid and the water pipelines.

[0006] A further improvement of the technical solution of the utility model is that the batching device is arranged in three layers, the top layer is a silo, the second layer is a thick material mixing tank, and the bottom layer is a thin material mixing tank. The valve includes a solenoid valve and a water valve installed on the liquid infusion pipeline and the water infusion pipeline, and the raw materials of the bottom layer are input into the silo through the feeding pipe.

[0007] A further improvement of the technical solution of the utility model is that: a plurality of the silos, thick material stirring tanks and thin material stirring tanks are provided.

[0008] A centrifugal roller cold type paint batching and spraying system comprises a centrifugal roller cold type paint batching device, an automatic temperature measuring device and an automatic spraying machine, wherein the centrifugal roller cold type paint batching device, the automatic temperature measuring device and the automatic spraying machine are uniformly controlled by a PLC control system.

[0009] A further improvement of the technical solution of the utility model is that: the automatic spraying machine is provided with a spraying rod, the end of the spraying rod is provided with a throwing gun for coating, and the automatic spraying machine is connected with the thin material stirring tank through an electric self-priming pump.

[0010] A further improvement of the technical solution of the utility model is that an infrared thermometer and a laser rangefinder are installed on the automatic spraying machine.

[0011] A further improvement of the technical solution of the utility model is that the swinging gun is connected to the electric rotating device.

[0012] The further improvement of the technical solution of the utility model is that each valve of the centrifugal roller cold type coating batching device, the infrared thermometer of the automatic spraying machine, the laser rangefinder and the electric rotating device are uniformly controlled by a PLC control system.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0014] The centrifugal roller cold type coating batching and spraying system of the present application includes an automatic cold type coating batching device and an automatic sprayer, which are uniformly and comprehensively controlled, and have corresponding digital collection and application, thereby improving the stability and consistency of the entire cold type spraying process control, greatly improving the process control qualification rate, and achieving "zero defect" in the roller surface quality. During the batching and spraying process, operations such as carrying powder and pushing materials are eliminated, thereby saving labor.

[0015] This application uses a swing gun instead of a conventional spray nozzle. The swing gun is automatically controlled in the position of the cold mold inner cavity. The structure of the swing gun can be found in patent CN216137445U. The swing gun is connected to an electric rotating device to break up the paint. The paint is evenly thrown out from the gap of the swing bowl, solving the problem of uneven discharge or even dripping caused by the wear of the discharge hole of the stainless steel spray nozzle.

[0016] The centrifugal roller cold type coating batching and spraying system adopts PLC control scheme, automatic batching, automatic coating, with the advantages of powerful functions, convenience and flexibility, high reliability, low cost, easy maintenance, etc. It greatly improves the batching accuracy, realizes networked production management, eliminates manual influence, and realizes precise control of batching.

[0017] Through program design, the coating thickness is automatically controlled by relying on the weighing module in the batching device. There is no need for manual thickness measurement, and the thickness control is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a centrifugal roller cold type coating batching device of the utility model;

[0019] Figure 2 This is a block diagram of a centrifugal roller cold type coating material spraying system of the utility model;

[0020] Figure 3 This is the ingredient flow chart of the utility model;

[0021] Among them, 1. silo, 2. thick material mixing tank, 3. thin material mixing tank, 4. weighing module, 5. valve, 6. feeding pipe. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the embodiments:

[0023] Example 1

[0024] like Figure 1 As shown, a centrifugal roller cold type coating batching device is arranged in layers, and different raw materials and semi-finished raw materials are arranged in each layer. For example, if it is arranged in three layers, the first layer is a silo 1, and the raw materials are transported to the silo 1 from the bottom through a feeding pipe 6. The silo 1 includes a plurality of hoppers for containing different raw materials; a thick material stirring tank 2 is arranged on the second layer, and a thin material stirring tank 3 is arranged on the third layer. The thick material stirring tank 2 and the thin material stirring tank 3 are provided with weighing modules 4 at the bottom and are respectively provided with water pipelines to supply water thereto. The hoppers of the silo 1 transport raw materials to the thick material stirring tank 2 and the thin material stirring tank 3 through pipelines, and the thick material stirring tank 2 transports liquid material to the thin material stirring tank 3 through pipelines. A plurality of valves 5 are arranged on the pipeline for transporting the liquid material and the water pipeline, and the valve 5 includes a solenoid valve and a water valve installed on the liquid pipeline and the water pipeline.

[0025] Example 2

[0026] A centrifugal roller cold type coating material spraying system, such as Figure 2 As shown, it includes a centrifugal roller cold type paint batching device, an automatic temperature measuring device and an automatic spraying machine, and the centrifugal roller cold type paint batching device, the automatic temperature measuring device and the automatic spraying machine are uniformly controlled by a PLC control system.

[0027] The automatic spraying machine includes a spraying device and a positioning mechanism. The positioning mechanism includes a vertical positioning mechanism and a horizontal positioning mechanism. The vertical positioning mechanism includes a parallel four-bar linkage mechanism hinged on a base, and a linear drive device hinged to the middle part of the vertical rod. The electric push rod serving as the linear drive device is fixedly installed on a support in the same plane as the parallel four-bar linkage mechanism. The top cross bar of the parallel four-bar linkage mechanism is a self-machined I-shaped guide rail. The electric push rod changes the angle with the horizontal plane by pushing the vertical rod, thereby changing the height of the guide rail.

[0028] The horizontal positioning mechanism includes a guide rail connected to the top crossbar of the parallel four-bar linkage in the vertical positioning mechanism, a spraying trolley that can slide on the guide rail, a sprocket, a chain transmission mechanism and a driving device for driving the spraying trolley are arranged on the guide rail, a spraying rod is installed on the top of the spraying trolley, and a swing gun is fixed to the end of the spraying rod. Horizontal and vertical bearings are installed on the sliding trolley, and the outer ring of the bearing contacts the guide rail to achieve sliding; a driving motor is arranged at one end of the guide rail, and a driving sprocket is installed on the motor output shaft, and a passive sprocket is arranged at the other end of the guide rail, and the chain is hinged to a slider with vertical freedom arranged on the side of the spraying trolley.

[0029] The automatic spraying machine is connected to the thin material stirring tank 3 through an electric self-priming pump. An infrared thermometer and a laser rangefinder are installed on the automatic spraying machine. The swing gun is connected to an electric rotating device to swing the swing gun.

[0030] Each valve 5 of the centrifugal roller cold type coating dosing device, the infrared thermometer, the laser rangefinder and the electric rotating device of the automatic spraying machine are uniformly controlled by the PLC control system.

[0031] Working principle or usage:

[0032] The batching process is as follows Figure 3 As shown, the silo 1 contains raw materials, including multiple hoppers, each of which contains different raw materials, such as bentonite, quartz powder, zircon powder, etc. Some raw materials need to be cured in advance, such as bentonite, which is transmitted from the hopper of the silo 1 to the thick material mixing tank 2 on the second layer for bentonite batching and mixing. At the same time, it is connected to a water pipeline, and water is added for curing. The raw materials in other hoppers of the silo 1 do not need to be batched and cured in advance and are transported to the thin material mixing tank 3. At the same time, the thick material mixing tank 2 also transports the cured bentonite to the thin material mixing tank 3, and is connected to a water pipeline. Valves are set on each material pipeline and water pipeline, including solenoid valves and water valves. These valves and the entire batching process are uniformly controlled by a PLC control system.

[0033] According to the production plan, when preparing bentonite thick material, the quantity of ingredients is input, and the PLC control system issues instructions to open the solenoid valve and the water valve, and the bentonite and water automatically enter the thick material mixing tank 2 for mixing and curing. The weighing module at the bottom of the thick material mixing tank 2 can detect the weight of the added water and bentonite.

[0034] When preparing thin materials, the PLC controls the amount of water and various powders added, and automatically detects the specific gravity after stirring. The entire batching process is controlled by the PLC control system, and all information is collected and transmitted to the whole process program.

[0035] Preparation before spraying

[0036] The cold mold is placed on the automatic spraying machine, and the size data of the cold mold is transmitted to the PLC control system, which then controls the automatic spraying machine. According to the infrared rangefinder installed on the automatic spraying machine, the relative position of the swing gun is measured, and the swing gun head is automatically aligned to the center of the cold mold and the reciprocating motion node;

[0037] The infrared thermometer starts to measure the temperature of the cold mold cavity, measuring the temperature range of the front, middle and back of the cold mold, setting the temperature range requirements in advance, and starting the spin coating operation after reaching the set temperature. If the temperature is higher than the set temperature, wait for 5 minutes or a certain period of time before measuring the temperature again. If the temperature is lower than the limit temperature, an alarm is issued and the cold mold is preheated again. During the whole process, the data of the cold mold and the temperature measurement data are transmitted to the whole process program.

[0038] Spraying operation

[0039] After the thinner mixing tank 3 is configured with the paint, an electric self-priming pump is used to extract the paint, and the paint is transmitted to the swing head. The swing head is connected to the electric rotating device, and the electric rotating device drives the swing head to swing the paint onto the inner wall of the cold mold. The adhesion is further enhanced, and the uniformity of the paint after swinging is significantly improved, from the original 0.2mm to 0.1mm.

[0040] After the start of the spin coating, the weighing module of the centrifugal roller cold type coating dosing device is combined with the spin coating pass record on the automatic sprayer to record the relationship between the weight and pass of the cold type spin coating of different specifications. Ultimately, the coating thickness can be controlled by the spin coating pass, and there is no need to measure the thickness multiple times.

[0041] After the coating is completed, the PLC control system issues instructions to clean the pipeline.

Claims

1. A centrifugal roller cold type coating batching device, characterized in that: The invention comprises a material silo (1), a thick material stirring tank (2) and a thin material stirring tank (3) arranged in layers, wherein a weighing module (4) is arranged at the bottom of the thick material stirring tank (2) and the thin material stirring tank (3), and water delivery pipelines are respectively arranged to supply water to the thick material stirring tank (2) and the thin material stirring tank (3), the material silo (1) delivers material powder to the thick material stirring tank (2) and the thin material stirring tank (3) through pipelines, and the thick material stirring tank (2) delivers material liquid to the thin material stirring tank (3) through pipelines, and a plurality of valves (5) are arranged on the pipelines for delivering material liquid and the water delivery pipelines.

2. A centrifugal roller cold type coating dosing device according to claim 1, characterized in that: The batching device is arranged in three layers, the top layer is a silo (1), the second layer is a thick material mixing tank (2), and the bottom layer is a thin material mixing tank (3). The valve (5) comprises a solenoid valve and a water valve installed on a liquid delivery pipeline and a water delivery pipeline. The raw materials in the bottom layer are input into the silo (1) through a feeding pipe (6).

3. A centrifugal roller cold type coating dosing device according to claim 1, characterized in that: The material silo (1), thick material stirring tank (2) and thin material stirring tank (3) are provided in plurality.

4. A centrifugal roller cold type coating material spraying system, characterized in that: The invention comprises a centrifugal roller cold type coating material dispensing device, an automatic temperature measuring device and an automatic spraying machine, and the centrifugal roller cold type coating material dispensing device, the automatic temperature measuring device and the automatic spraying machine are uniformly controlled by a PLC control system.

5. A centrifugal roller cold type coating material spraying system according to claim 4, characterized in that: The automatic spraying machine is provided with a spraying rod, the end of which is provided with a spraying gun for coating, and the automatic spraying machine is connected to the thinner stirring tank (3) via an electric self-priming pump.

6. A centrifugal roller cold type coating material spraying system according to claim 5, characterized in that: The automatic spraying machine is equipped with an infrared thermometer and a laser rangefinder.

7. A centrifugal roller cold type coating material spraying system according to claim 5, characterized in that: The swing gun is connected to an electric rotating device.

8. A centrifugal roller cold type coating material spraying system according to any one of claims 6 or 7, characterized in that: The various valves (5) of the centrifugal roller cold type coating dosing device, the infrared thermometer, the laser rangefinder and the electric rotating device of the automatic spraying machine are uniformly controlled by a PLC control system.

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