KR101675523B1

KR101675523B1 - Refining process apparatus for tire building

Info

Publication number: KR101675523B1
Application number: KR1020150128995A
Authority: KR
Inventors: 김원한
Original assignee: 금호타이어 주식회사
Priority date: 2015-09-11
Filing date: 2015-09-11
Publication date: 2016-11-11

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire refining process apparatus, and more particularly, to a tire refining process apparatus in which a temperature of a wheat is controlled and a cooling effect is uniformly performed. The tire refining process apparatus includes a mixer for mixing raw rubber, And a milling device for discharging the mixed rubber supplied from the milling device in the form of a rubber sheet. The milling device includes a milling part having a plurality of pairs of mills opposed to each other, and a cooling device is connected to each of the mills, do.

Description

[Technical Field] The present invention relates to a refining process apparatus for tire building,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tire manufacturing refining process apparatus, and more particularly, to a tire refining process apparatus in which the temperature of the wheat is controlled and the cooling effect is uniform.

Refining process in tire manufacturing process is a process of mixing rubber and various raw materials / materials, and is a process of making rubber for tire through compounding of rubber and compound.

As shown in FIG. 1, the rubber and the compound are mixed through the mixer 10, the appropriately mixed rubber is discharged through the discharge port 20, and is transported by the transporting unit 30, for example, a known screw roller and transported . The fed mixed rubber is outputted to the rubber sheet 50 by the milling device 40, and the outputted rubber sheet 50 is made into a semi-finished product of the tire through processes such as extrusion, rolling and molding.

If the temperature is not controlled depending on the type of the rubber to be mixed in the milling operation, the quality of the rubber sheet 50 becomes problematic. This is because the physical and chemical properties of each rubber vary. A typical method used to carry out milling in a cooled environment is a water-cooling method in which cooling water is passed through a feed pipe to absorb heat energy through a mill and discharged through a discharge pipe to absorb heat energy. It was difficult to adjust the cooling temperature in accordance with the temperature.

In addition, since the conventional technique has only one pair of mills installed, it is necessary to perform the milling operation again in order to perform the milling operation at a temperature condition suitable to the properties of the mixed rubber.

Particularly, a pair of mills has a temperature difference, and the mixed rubber, which has been milled by the temperature difference, is transferred to the conveyor belt by being attached to one side of the mill and is transported. Depending on the properties of the mixed rubber, (When the content of butyl is high), and there is also a mixed rubber attached to the side mill having a high temperature, so that the temperature of the mill must be rapidly changed to achieve continuity of work. However, there is a problem that it is impossible to rapidly change the temperature of the wheat.

In order to improve the quality of the rubber sheet 50, the temperature of the mill must be uniform throughout. However, conventionally, since the cooling water is supplied by the one-way flow method, there is a problem that the temperature on the upstream side becomes lower and the temperature becomes higher as it goes downstream, which is not uniform.

Patent Document 1: Korean Patent Laid-Open Publication No. 10-2005-0114990

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the prior art, and it is an object of the present invention to provide a tire manufacturing refining process apparatus capable of performing a milling operation in accordance with the kind of mixed rubber supplied from a mixer, have.

According to an aspect of the present invention, there is provided a tire refining process apparatus including a mixer for mixing raw rubber, a transfer unit for transferring the mixed rubber, and a milling device for discharging the mixed rubber supplied from the transfer unit in the form of a rubber sheet, The apparatus includes a milling unit having a plurality of pairs of mills opposed to each other, and a cooling device is connected to each of the mills so that temperature control is possible individually.

Further, the mills are arranged at regular intervals in the longitudinal direction along the circumference of the inside of the mill, and include a plurality of first cooling pipes and a plurality of second cooling pipes through which cooling water flows, and one end communicates with the first cooling pipe A second discharge header is provided which is in communication with a first supply header and a second cooling tube in which a first supply pipe for supplying cooling water from the outside is formed and a second discharge pipe through which cooling water is discharged from the second cooling pipe And the other end is communicated with a first discharge header and a second cooling pipe communicating with the first cooling pipe and having a first discharge pipe through which the cooling water is discharged from the first cooling pipe, And a second supply header in which two supply pipes are formed.

The apparatus may further include a moving belt provided below the milling unit and adapted to move the milling unit.

Further, a heat sink is interposed between each pair of the mills.

According to the present invention, there is provided a tire refining process apparatus capable of performing a milling operation at an appropriate temperature according to the type of mixed rubber and outputting a rubber sheet whose temperature distribution is uniform on all surfaces and whose quality is improved.

1 is a schematic view of a tire refining process apparatus.
Figure 2 is a schematic representation of a milling device.
Figure 3 is a schematic representation of the mill.

Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components, and the same reference numerals will be used to designate the same or similar components. Detailed descriptions of known functions and configurations are omitted.

Figure 2 is a schematic representation of a milling device.

A reduction gear 60, a power motor 70, a cooling device (not shown), and a moving belt 80 as shown in Fig.

Although the milling part includes mills 41, 42, 43 and 44 which are opposed to each other in pairs, two pairs are shown, but several pairs can be arranged aligned in the longitudinal direction. A heat radiating plate 46 is interposed between the first mill 41 and the third mill 43 and between the second mill 42 and the fourth mill 44 in the same longitudinal direction, do.

The mills 41, 42, 43, and 44 are cylindrically shaped and have a rotational axis in the longitudinal direction, and receive rotation power from a power motor 70 described later and rotate. The mixed rubber in the form of a lump is passed between two rotating mills to be processed into a sheet of rubber sheet (50).

The reduction gear 60 and the power motor 70 provide a rotational power to the mills 41, 42, 43 and 44 and a speed difference to the mills opposed to each other by the reduction gear 60 . By this asymmetric milling operation, a rubber sheet 50 having a finer structure can be obtained.

The cooling device includes a cooling heat exchanger (not shown), a cooling water path 90, and a cooling regulator 91, 92, 93, 94.

A known apparatus is used for the cooling heat exchanger, and cooling water is used as the fruit to control the temperature of the mills 41, 42, 43, 44. The cooling water path 90 is a path through which the cooling water cooled by the cooling heat exchanger or the cooling water heated by the mills 41, 42, 43, 44 is discharged. Therefore, the cooling water circulates through the cooling heat exchanger and the mills 41, 42, 43, and 44. (Not shown) for recovering cooling water having passed through the mills 41, 42, 43, and 44 and sending the recovered cooling water to the cooling heat exchanger.

The cooling regulating devices 91, 92, 93 and 94 are provided corresponding to the respective mills 41, 42, 43 and 44. A supply pump for supplying cooling water to the mills 41, 42, 43 and 44, and a control valve for controlling the temperature by controlling the supply amount.

The moving belt 80 includes a driving roller and a belt as a conveyor belt. The mills 41, 42, 43, and 44 on the upper side of the closed loop can move in the horizontal direction because the belt is rotated in the closed loop state by the drive roller. Further, the direction of movement of the drive roller can be adjusted by changing the rotational direction of the drive roller. Accordingly, the mills 41, 42, 43, and 44 having appropriate temperature conditions can be moved according to the type of the mixed rubber discharged from the mixer 10.

In the prior art (Korean Patent Laid-Open Publication No. 10-2005-0114990), there was a technique of controlling the temperature of each pair of mills. However, as described above, the temperature of the wheat was rapidly changed according to the type of mixed rubber discharged from the mixer There was a limit to control.

According to a preferred embodiment of the present invention, the first mill 41 and the third mill 43 form a pair, and the second mill 42 and the fourth mill 44 form a pair. When the mixed rubber mixed in the mixer 10 is transferred to the milling unit 40 by the transferring unit 30, the temperature of the pair of mills is adjusted to the moving belt 80 To the point where the mixed rubber has been transferred, thereby performing the milling operation.

Fig. 3 is a schematic view of the first mill 41. Fig.

Although only the first mill 41 is illustrated, the second mill 42, the third mill 43, and the fourth mill 44 have the same structure.

The first mill 41 includes six first cooling pipes 150 and six second cooling pipes 160 arranged at regular intervals in the longitudinal direction along the circumference of the cylindrical body. The number of cooling tubes can vary depending on various conditions.

A first supply header 110 communicating with one end of the first cooling pipe 150 and having a first supply pipe 112 for supplying cooling water from the cooling heat exchanger is provided at one end of the main body, And a first discharge header 130 communicating with the other end of the first cooling pipe 150 and discharging the cooling water flowing through the first cooling pipe 110 is provided at the other end.

The cooling water flowing through the first cooling pipe 150 is supplied to the first supply header 110 through the first supply pipe 112 on one side and flows to the discharge header 130 on the other side. The cooling water that has cooled the surface of the first mill 41 has the lowest temperature of the cooling water flowing from the first feed header 110 on the bar side to the first cooling pipe 150, The temperature of the cooling water becomes higher toward the first discharge header 130 side.

A second supply header 140 communicating with the other end of the second cooling pipe 160 and having a second supply pipe 142 for supplying cooling water from the cooling heat exchanger is provided at the other end of the main body, At one end thereof, there is a second discharge header 120 communicating with one end of the second cooling pipe 160 and discharging cooling water flowing through the second cooling pipe 160.

Accordingly, the cooling water in the second cooling pipe 160 flows from the second supply header 140 on the other side to the second discharge header 120 on the one side.

The cooling water that has cooled the surface of the first mill 41 has the lowest temperature of the cooling water flowing from the second supply header 140 on the other side to the second cooling pipe 160 that has a higher temperature by absorbing the heat energy, The temperature becomes higher toward the second discharge header 120 side.

The two-way flow method in which the flow direction of the cooling water is opposite to that of the flow direction is alternately arranged, and the opposite temperature distribution is shown in the longitudinal direction. Therefore, the surface of the first mill 41 has a uniform temperature everywhere.

Accordingly, the temperature condition suitable for the properties of the mixed rubber can be accurately controlled, and the rubber sheet 50 of improved quality can be processed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments but should be determined by the equivalents of the appended claims, as well as the following claims.

10: mixer 20: outlet
30: Feeder 40: Milling device
41, 42, 43, 44: mill 46: heat sink
50: rubber sheet 60: reduction gear
70: Power motor
80: moving belt 90: as cooling water
91, 92, 93, 94: cooling regulator
110: first supply header 112: first supply pipe
120: second exhaust header 122: second exhaust pipe
130: first discharge header 132: first discharge pipe
140: second supply header 142: second supply pipe
150: first cooling pipe 160: second cooling pipe

Claims

A mixer for mixing the raw material rubber, a transfer part for transferring the mixed rubber, and a milling device for discharging the mixed rubber supplied from the transfer part in the form of a rubber sheet. The milling device includes a milling part having a plurality of pairs of mills opposed to each other And a cooling device is connected to each of the mills so that the temperature can be individually controlled,
The plurality of first cooling pipes (150) and the plurality of second cooling pipes (160) are formed so that the cooling water flows in a state where the mills are arranged at predetermined intervals in the longitudinal direction along the circumference on the inside of each of the mills In addition,
A first supply header 110 for storing cooling water supplied from the outside through a first supply pipe 112 and a first discharge pipe 132 after cooling water supplied from the first supply header 110 are stored, A first discharge header 130 is formed to discharge the air,
A second supply header 140 for storing cooling water supplied from the outside through the second supply pipe 142 and a second discharge pipe 122 after the cooling water supplied from the second supply header 140 is stored, And a second exhaust header (120) for exhausting the exhaust gas through the second exhaust header (120).

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