KR20030079493A - A method for mixing rubber using graphic panel - Google Patents

Abstract

PURPOSE: A method for automatically combining rubber in a mixer is provided by utilizing a graphic panel instead of conventional manual working of an operator to greatly reduce not only inferior goods but also working labor of the operator, thereby enhancing productivity. CONSTITUTION: The process comprises conventional steps of introducing raw material for rubber combination and chemical into a mixer through a hopper and a ram to be closed/opened in turns and rotating a rotor to combine both materials above; further steps of inputting specifications required to combine the rubber on a graphic panel(20) and conducting each of movement factors of the mixer through PLC(21) according to values inputted in the panel. The specifications include combination times after introduction of the raw material and the chemical, combination temperature, discharge time and temperature, etc.

Description

A method for mixing rubber using graphic panel}

The present invention relates to a rubber compounding method using a graphic panel, and more particularly to a method of automatically compounding rubber using a graphic panel instead of a manual operation by a driver in compounding rubber in a mixer. will be.

The compounding rubber used in the manufacture of tires is used after mixing and mixing rubber, reinforcing agent, vulcanizing agent, vulcanization accelerator, vulcanizing agent, anti-aging agent, tackifier, etc. Depending on the part, it is classified into rubber for tread, carcass and bead and transferred to each necessary process.

In the conventional rubber mixing method, as shown in FIG. 1, the older mixer has been completely dependent on the driver for all the operations required for rubber mixing. The operation of each element of the mixer to match the input and processing conditions for each is also dependent on manual operation.

In the conventional rubber compounding method, since the compounding material must be manually inputted in the operation of the old mixer, a lot of driver's arbitrariness is involved, so that a situation such as incorrect input procedure and no input of the material due to a mistake can occur. There is a possibility, in this case there was a problem causing poor quality, such as poor drug dispersion, foreign matter mixing.

The present inventors continuously carry out research to solve the above problems, input the specifications required for rubber compounding using a graphic panel instead of manual operation by the driver, and according to the input content, each element of the mixer through the PLC The present invention has been completed by finding out that such a problem can be solved by configuring to operate automatically.

Accordingly, the present invention provides a rubber compounding method configured to enable automatic operation at a low cost, at least in operating each element of the mixer, in order to overcome the disadvantage of the manual operation, which relies solely on the driver for the rubber compounding operation.

1 is a cross-sectional view of a rubber mixing mixer (mixer) generally used for industrial use and an exemplary view of a rubber mixing method by a conventional manual operation,

Figure 2 is an illustration of a rubber compounding method according to the present invention,

3 is a configuration example of a PLC connected to the graphic panel used in the present invention,

4 shows a detailed configuration example of the graphic panel used in the present invention.

* Description of the symbols for the main parts of the drawings *

4: Hopper 7: Ram

8: mixer 10: rotor

20: Graphic panel 21: PLC

The present invention is a means for achieving the above object through the rubber compounding material (3) and the drug (2) through the opening and closing of the hopper (4) and the opening and closing of the ram (7) to the interior of the rubber mixing mixer (8) In mixing the rubber by rotating the rotor 10 by supplying, input the specifications required for rubber compounding to the graphic panel 20 and the mixer through the connected PLC 21 so that the machine can be operated according to the input value. It provides a rubber compounding method using a graphic panel, characterized in that to perform each operating element of.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a rubber mixing mixer (mixer) that is generally used for industrial purposes and an exemplary view of a rubber mixing method by a conventional manual operation, illustrating a process of the driver manually rubber mixing a spherical mixer.

During the rubber compounding operation, the hopper 4a with the rubber compounding material 3-a, 3-b and some of the chemicals 2 placed in the supply conveyor 13 by the operator 1 in advance is weighed. It is switched to the open state 4-b and the ram 7 is switched from the closed position 7-a to the open position 7-b and fed into the mixer 8.

The above process is repeated to supply the blending material into the mixer, and then switch the hopper door 4 to the closed position (4-a), and the ram 7 to the closed position (7-a). After the rotor 10 is rotated to the rubber compounding work.

However, in order to complete a series of rubber compounding, it is usually required to go through several steps (material input 1 → compounding → material input 2 → compounding → material input 3 → discharging). The above operation should be repeated for this purpose.

In the case of manually operating the above process, it is impossible to accurately determine the timing required for each procedure, and there is an unreasonable point that much depends on the driver's experience. Frequently, the material to be injected into the tertiary is introduced at the same time as the material to be supplied to the secondary at the same time. If the procedure required for each rubber compound is not properly followed, the rubber compound This will have a big impact on the final quality.

Figure 2 is an exemplary view of the rubber compounding method according to the present invention, in order to eliminate the factors of manual work that inevitably causes deviation or error in each operation in performing the respective operating elements of the rubber compounding mixer 9 Enter the specifications required for rubber compounding using the panel 20, and perform the rubber compounding by performing each operating element, for example, hopper door, discharge door, ram, etc., through the PLC 21 according to the input contents. It is configured to.

Graphic panel is also called touch screen because it touches a button displayed on the screen with a finger and proceeds to the screen. This graphic panel is less complicated than PC, but handles less complicated or repetitive tasks. It is very efficient to use, so it is not only widely used in the industrial field, but can be easily produced by using simple programming provided by the user.

As shown in FIGS. 3 to 4, the graphic panel used in the present invention is preferably inserted into the driver panel and connected to a PLC, which is a controller that operates a machine by performing logic programming. For example, after the rubber compound material is added, the chemicals are added, and each scrap is added. Mixing time, mixing temperature and The specifications that can be input according to the discharge time, the discharge temperature, or the like of the rubber compound can be variously modified.

Hereinafter, the present invention will be described in detail through examples. However, these are intended to describe the present invention in more detail, and are not intended to limit the scope of the present invention thereto.

<Example>

Table 1 shows the results of comparing the number of defects in back tape entry of the finished tire after improving the rubber compounding method by the method according to the present invention and the number of defects in back tape entry by manual operation before improvement.

<Table 1> Defective number of bags

division Headquarters Before improvement One 425 2 627 3 632 4 598 5 120 6 161 7 237 8 118 After improvement 55

As shown in Table 1, the rubber compounding method according to the present invention can not only significantly reduce the quality defect rate as compared with the conventional manual work method, but also improve the productivity because the work intensity of the driver can be reduced. Can be.

Claims (2)

The rubber compounding material (3) and the chemicals (2) are supplied to the inside of the rubber compounding mixer (8) through opening and closing of the hopper (4) and opening and closing of the ram (7) to rotate the rotor (10) to mix the rubber In Rubber input using graphic panel, characterized by inputting the specifications required for rubber compounding into graphic panel 20 and performing each operating element of mixer through PLC 21 connected to be a machine operation according to this input value. Formulation method The method of claim 1, The specifications are given after the rubber compound is added, after the chemical is added and after the scrap. Rubber compounding method using graphic panel, characterized in that the mixing time, mixing temperature and discharge time and discharge temperature