KR101332504B1 - Apparatus for controlling the temperature of sheet rubber - Google Patents

Abstract

Sheet rubber temperature control apparatus according to the present invention is installed in the drying / cooling unit 17 for drying and cooling the sheet rubber in the sheet rubber temperature control apparatus for controlling the temperature of the sheet rubber conveying the drying / cooling unit In this regard, the loading sheet rubber temperature sensor 30 for measuring the sheet rubber temperature immediately before the stacking after passing through the drying / cooling unit 17 and the air supply unit 80 for supplying cooling air to the drying / cooling unit 17. ), Supplying cooling air to the air supply unit 80 by heating or cooling the outside air, connecting the air supply 40 having the air supply temperature sensor, the air supply source 40 and the air supply unit 80, The air supply pipes 62, 64, 66, 68 in which the air supply valves 62a, 64a, 66a, and 68a are installed, and the seating sheet rubber temperature sensor 30, the air supply temperature sensor, and the air supply valve can be exchanged with each other. Connected to the stacking sheet rubber received from the temperature sensor 30 And a first rubber and a temperature controller 70 for controlling the temperature and air flow rate of the cooling air supplied by the air supply unit 40 in advance comparing the input reference temperature.

Description

Apparatus for controlling the temperature of sheet rubber}

The present invention relates to a sheet rubber temperature control device for maintaining a uniform temperature of the rubber to be loaded by proportionally controlling the temperature supplied for drying / cooling of the finished sheet rubber compounded in real time.

Generally, as shown in FIG. 1, a sheet rubber manufacturing apparatus includes a hermetic mixer 11 and a hermetic mixer 11 that produce mixed rubber through a batch unit operation by mixing various types of rubber and chemicals. Extruder equipped with an extruder screw 13 for extruding the compounded rubber introduced through the extruder hopper 12 from the extruder hopper 12 and a molding unit 15 made of a roller die or a sheet mill for molding the compounded rubber extruded at the outlet. (14), an application part 16 for applying a release agent to the sheet rubber from the extruder 14, and a drying / cooling part 17 when the sheet rubber is dried and cooled through the incline conveyor after exiting the application part. And a stacking unit 18 on which the sheet rubber, which has been dried and cooled, is loaded.

 The drying / cooling unit 17 is normally supplied with cooling air at an external temperature or the like, and a certain distance is conveyed at a constant speed. This conventional method has a similar rubber retention time in the drying / cooling section, and the sheet rubber thickness is also unchanged, so the temperature reduction amount is also similar. In addition, the temperature of the outside air varies depending on the season, but the mixing temperature of the rubber does not change, and thus the degree of cooling of the sheet rubber is changed. Typically, the rubber temperature decrease in the drying / cooling section of a certain section is affected by the sheet rubber thickness, the temperature of the cooling air, and the rubber residence time, so it is important to cool down quickly to a desired temperature.

 In the prior arts for cooling / drying rubber, Japanese Laid-Open Patent Publication No. 2005-238508 uses a small amount of space for cooling / drying and forcibly sprays water on a certain amount of rubber by forcing water to cool it. Using the sensor, water is repeatedly sprayed until the desired temperature is satisfied. This method may interfere with the role of the release solution previously applied to the surface of the sheet rubber to cause adhesion of the stacked sheet rubber and the like. In addition, Japanese Patent Application Laid-Open No. 1995-205162 shows an apparatus for cooling sheet rubber having a plurality of conveyors and conveyed in a specific space to a suitable level having a desired tension by using cooling air. Both of these are means for cooling the sheet rubber that is continuously supplied, but may cause another process problem.

In addition, Korean Patent Publication No. 2009-0099961 designed by the present inventors shows a method of controlling the rubber loading temperature by detecting the temperature difference by controlling the real time loading temperature and the real temperature in real time and controlling the thickness of the sheet rubber accordingly. . This is a method using the cooling rate difference according to the thickness of the sheet rubber under the same cooling air temperature conditions. Therefore, if the temperature of the outside air is similar in the short term, there is an effect of the loading temperature control. However, if the temperature condition of the outside air is changed due to weather or seasonal factors, the control value changes accordingly, making it difficult to control the loading temperature. It will take a considerable time to set up. In addition, the amount of sheet rubber that can be processed in a given cooling zone is usually affected by the batch method, and the range of sheet rubber thicknesses that can be controlled in a continuous blending state is also limited. The controllable loading temperature range thus shows a limit. If the loading temperature of the sheet rubber is too high or too low, that is, if the temperature difference of the sheet rubber supplied for the compounding becomes large, it may affect the temperature control of the blender, which may cause unevenness of the post-process compounding, and the difference in processability Will be shown. In addition, the higher the loading temperature, the more the amount of the release solution is increased due to the adhesive problem of the sheet rubber, causing problems such as quality deterioration and unnecessary material cost loss.

In addition, the prior art has various problems as follows. Usually, the temperature of the compounding rubber is a temperature between 130 ° C and 170 ° C for the CBMB rubber, and the sulfur compounding rubber is usually 90 ° -110 °. The typical loading temperature in the tire rubber industry is around 40 degrees. Therefore, the cooling performance of the cooling / drying section should vary according to the difference between the temperature of the compound rubber and the loading temperature, but this is difficult to reflect. In addition, the design of the cooling section, the supply air temperature at room temperature (25 degrees) level, but the supply air temperature in winter is 10 degrees to 15 degrees, and in summer it is more than 30 degrees. Therefore, the sheet rubber may be supercooled in winter, and the cooling is not good in summer. Due to these problems, it is difficult to uniformly maintain the loading temperature of the sheet rubber at a desired level, which may cause uneven mixing of the rubber due to the temperature difference of the post-process input rubber, and the influence of the post-process processability is shown. In addition, the higher the loading temperature, the more the adhesiveness of the sheet rubber is increased, thereby increasing the amount of use of the release solution may cause a material cost increase.

The present invention has been made in view of the above point, according to the difference between the temperature just before the final loading of the sheet rubber passing through the drying / cooling section of the drying / cooling section having a constant passing distance and the standard temperature desired by the user It is an object of the present invention to provide a sheet rubber temperature control device for controlling the temperature of the air to be supplied for drying / cooling in proportion to change the cooling rate of the sheet rubber in the drying / cooling section to maintain the loading temperature uniformly. .

Sheet rubber temperature control apparatus according to the present invention for achieving the above object is installed in the drying / cooling unit 17 for drying and cooling the sheet rubber sheet for controlling the temperature of the sheet rubber for conveying the drying / cooling unit A rubber temperature control apparatus, comprising: a stacking sheet rubber temperature sensor (30) for measuring a sheet rubber temperature just before stacking after passing through the drying / cooling unit (17); An air supply unit 80 for supplying cooling air to the drying / cooling unit 17; an air supply source 40 for supplying cooling air to the air supply unit 80 by heating or cooling external air and having an air supply temperature sensor 40 ); An air supply pipe (62, 64, 66, 68) connecting the air supply source (40) and the air supply unit (80) and having air supply valves (62a, 64a, 66a, 68a) installed on a line; And a signal exchanged between the stacking sheet rubber temperature sensor 30, the air supply temperature sensor, and the air supply valve, and the loaded actual rubber temperature received from the stacking sheet rubber temperature sensor 30 and a standard temperature input in advance. Comparing with a controller 70 for controlling the temperature and the air supply amount of the cooling air supplied from the air supply source 40.

According to an embodiment of the present invention, the air supply source 40 supplies a high temperature air and a high temperature source 42 having an air supply temperature sensor 42b at an end thereof, and a middle temperature air supply air supply temperature sensor at an end thereof. A medium temperature source 44 having 44b) and a low temperature source 46 for supplying low temperature air and having an air supply temperature sensor 46b at an end thereof. The air supply pipe includes a hot air supply pipe 62 connecting the high temperature source 42 and the air supply unit 80, and a medium temperature air supply pipe connecting the middle temperature source 44 and the air supply unit 80 to each other. 64 and a low temperature air supply pipe 66 connecting the low temperature source 46 and the air supply unit 80.

In addition, the middle temperature source 44 includes a supply pipe 41 for supplying air at room temperature, the high temperature source 42 is installed to surround the supply pipe 41 and the supply pipe for supplying air at room temperature and steam or It includes a heating tube 43 for flowing hot water, the low temperature source 46 includes a supply pipe 41 for supplying air at room temperature and a cooling tube 47 installed to surround the supply pipe and the refrigerant flows.

On the other hand, according to another embodiment of the present invention, the air supply source 40 is a supply pipe 52 for supplying air at room temperature, the heating pipe 53 and the cooling pipe 54 on one side and the other side of the supply pipe 52 ) Is installed or the heating pipe (53) and the cooling pipe (54) are repeatedly installed in the supply pipe (52).

According to the present invention, in controlling the loading temperature of the sheet rubber passing through a constant cooling / drying section, by detecting the difference between the standard loading temperature and the actual temperature in real time and automatically adjusting the temperature and the supply amount of the air to be supplied accordingly. The loading temperature can be maintained uniformly, and as a result, there is an effect of ensuring the processing and quality uniformity of the final formulation and reducing the loss of unnecessary material costs.

1 is a schematic configuration diagram of a sheet rubber manufacturing apparatus according to the prior art,
Figure 2 is a schematic configuration diagram of a sheet rubber manufacturing apparatus applied to the sheet rubber temperature control apparatus according to the present invention,
3 is a configuration diagram of a sheet rubber temperature control apparatus according to an embodiment of the present invention,
4a and 4b is a configuration diagram of a sheet rubber temperature control apparatus according to another embodiment of the present invention,
5 is a graph for explaining the air supply of the sheet rubber temperature control apparatus according to an embodiment of the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a sheet rubber temperature control apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in Figure 2, the sheet rubber temperature control apparatus of the present invention is a hermetic mixer 11 and a hermetic mixer, which mixes various types of rubber and chemicals to produce compound rubber through a batch unit operation. 11) is provided with an extruder screw 13 for extruding the compounding rubber introduced through the extruder hopper 12 from the extruder hopper 12, and a molding unit 15 made of a roller die or sheet mill for molding the compounding rubber extruded at the outlet into sheet rubber. The extruder 14, the applicator 16 for applying a release agent to the sheet rubber from the extruder 14, and the drying / cooling part 17 when the sheet rubber is dried and cooled through the incline conveyor after exiting the applicator. And, it is installed in the sheet rubber manufacturing apparatus including a loading portion 18 is loaded and dried sheet rubber is completed, specifically, the sheet rubber temperature control device 20 is applied to the drying / cooling unit 17 And controlling the temperature and supply amount of the cooling air supply air to the drying / cooling unit drying / cooling period. In general, the drying / cooling unit 17 is a batch off machine (Batch Off Machine) is applied.

Figure 3 shows a sheet rubber temperature control device according to an embodiment of the present invention, the temperature control device according to this embodiment measures the sheet rubber temperature just before loading after passing through the drying / cooling unit 17 Loading sheet rubber temperature sensor 30 (see FIG. 2), air supply unit 80 for supplying cooling air to the drying / cooling unit 17, and supplying cooling air to the air supply unit by heating or cooling external air An air supply source 40 having a temperature sensor, air supply pipes 62, 64, 66 connecting the air supply source 40 and the air supply unit 80, and an air supply valve is installed on a line, and a controller 70. ).

Specifically, the air supply 40 includes a high temperature source 42 for supplying hot air, a medium temperature source 44 for supplying medium temperature (room temperature) air, and a low temperature source 46 for supplying low temperature air. The high temperature source 42, the medium temperature source 44, and the low temperature source 46 are all connected to the pumps 42a, 44a, 46a, etc., and have a supply pipe 41 for receiving normal ambient air air therefrom. The supply source 42 is installed so that a heating tube 43 through which steam or hot water circulates to surround the supply tube 41, and the low temperature supply source 46 is a cooling tube 47 through which a refrigerant circulates to surround the supply tube 41. Is installed. Although not shown, the heating tube 43 and the cooling tube 47 are connected to separate heaters and cooling devices to circulate steam, hot water, and refrigerant, and the heaters and cooling devices are controlled by the controller 70. On the other hand, air supply temperature sensors 42b, 44b, and 46b are provided at ends of the high temperature source 42, the medium temperature source 44, and the low temperature source 46 to measure the temperature of the air flowing through each source.

The air supply pipe is a hot air supply pipe 62 connecting the hot supply source 42 and the air supply unit 80, and a medium temperature air supply pipe 64 connecting the middle temperature supply source 44 and the air supply unit 80. And a low temperature air supply pipe 66 connecting the low temperature source 46 and the air supply unit 80. Each of the air supply pipes 62, 64, 66 is provided with air supply valves 62a, 64a, 66a for opening and closing the flow rate and adjusting it.

The air supply unit 80 is installed at the side or inside of the drying / cooling unit 17 to supply cooling air to the drying / cooling unit 17. Here, the cooling air does not mean low-temperature air, but refers to air for drying and cooling the sheet rubber. As shown, the air supply unit 80 is installed in the drying / cooling section of the drying / cooling unit 17, that is, the longitudinal direction of the machine, a plurality of air supply unit 82, 84 as shown to increase the cooling efficiency (86) is installed so that the cooling air is simultaneously supplied in a plurality of regions instead of being supplied to one of the drying / cooling sections.

The controller 70 is connected to the stacking sheet rubber temperature sensor 30, the air supply temperature sensors 42b, 44b, 46b and the air supply valves 62a, 64a, 66a so as to be interchangeable with each other, and the stacking sheet rubber temperature sensor ( The actual rubber temperature to be received received from 30) is compared with a preset standard temperature to control the temperature and the air supply amount of the cooling air supplied from the air supply source 40. That is, the controller 70 compares the actual rubber temperature with the standard temperature, calculates the deviation, and adjusts the temperature and the supply amount of the cooling air to supply air according to the deviation to maintain the loading temperature uniformly. At this time, the controller receives the temperature information from the air supply temperature sensors 42b, 44b, 46b installed in each supply source 42, 44, 46, controls the heater and the cooling device to adjust the temperature of the supplied cooling air, and each air The air supply valves 62a, 64a, and 66a installed in the supply pipes 62, 64, and 66 are controlled to adjust the supply amount of cooling air. At this time, when the temperature difference value of the sheet rubber is set to the high temperature, medium temperature, and low temperature air supply conditions, each air may be supplied accordingly, and the intermediate level of the high temperature, medium temperature, and low temperature air supply conditions where the temperature difference value of the sheet rubber is set. When the low temperature and the medium temperature, or high temperature and medium temperature air is supplied at the same time to control the air temperature, for more precise temperature control is possible by controlling the air supply amount.

5 is a graph illustrating a temperature control of the supply air according to the difference between the actual rubber temperature and the standard temperature input in advance according to the present embodiment. The actual rubber temperature measured by the stacking sheet rubber temperature sensor 30 and the temperature of the currently supplied air equal to the standard temperature required by the user are referred to as the reference temperature (mid temperature). The higher the actual temperature ("+" on the graph) the higher the supply of cold air, and the lower the actual temperature ("-" on the graph) the higher the supply of hot air, thereby increasing the cooling efficiency of the sheet rubber. This will make a difference, thus leading to a final loading temperature approaching the standard temperature.

4A and 4B illustrate a sheet rubber temperature control device according to another embodiment of the present invention. In the case of the sheet rubber temperature control apparatus according to an embodiment of the present invention, the air supply source is divided into a high temperature source 42, a medium temperature source 44, and a low temperature source 46 to supply air of high temperature, medium temperature, and low temperature separately. On the other hand, in the case of the sheet rubber temperature control apparatus according to another embodiment of the present invention, there is a difference in that one air source supplies air of high temperature, medium temperature, and low temperature. Since there is only one air source, there is one temperature sensor, one air supply pipe, and one air supply valve. The other components are the same as the configuration and function of the previous embodiment, so the detailed description will be omitted.

Referring to Figure 4a, the air supply source 40 is connected by a pump 52a or the like supply pipe 52 for supplying air of medium temperature (room temperature), and the heating pipe 53 is installed so as to surround one side of the supply pipe (52) ) And a cooling tube 54 installed to surround the other side of the supply pipe 52. The air supply temperature sensor 52b is installed at the end of the supply pipe 52. The heating tube 53 and the cooling tube 54 are connected to a heater and a cooling device, not shown, so that the steam (hot water) and the refrigerant circulate. In addition, the air supply source 40 is connected to the air supply pipe 68 in which the air supply valve 68a is installed, thereby supplying cooling air to the air supply unit 80.

Referring to FIG. 4B, the air supply source 40 includes a supply pipe 52 for supplying air at room temperature, and a heating pipe 53 and a cooling pipe 54 which are repeatedly installed to cross the supply pipe 52. . The other components are the same as the configuration and function of the embodiment disclosed in Figure 4a, so the detailed description will be omitted.

Sheet rubber temperature control apparatus according to an embodiment of the present invention has the advantage of complex configuration but only newly installed high and low temperature source while maintaining a medium temperature source (and air supply pipe including the same) that is commonly used, and In addition, the sheet rubber temperature control apparatus according to another embodiment of the present invention has a relatively simple configuration but has a disadvantage in that all of the medium temperature sources that are commonly used are removed and a new air source is installed.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

20. Seat rubber temperature controller 30. Loading seat rubber temperature sensor
40. Air supply 41,52. Feeder
42. High Temperature Sources 44. Medium Temperature Sources
46. Cold Sources 43,53. Heating tube
47,54. Cooling pipes 62,64,66,68. Air supply piping
70. Controller 80. Supply part

Claims (5)

It relates to a sheet rubber temperature control device for controlling the temperature of the sheet rubber is installed in the drying / cooling unit 17 for drying and cooling the sheet rubber,
A stacking sheet rubber temperature sensor 30 for measuring a sheet rubber temperature immediately before the stacking after passing through the drying / cooling unit 17;
An air supply unit 80 supplying cooling air to the drying / cooling unit 17;
An air supply source 40 for supplying cooling air to the air supply unit 80 by heating or cooling external air and having an air supply temperature sensor;
An air supply pipe (62, 64, 66, 68) connecting the air supply source (40) and the air supply unit (80) and having air supply valves (62a, 64a, 66a, 68a) installed on a line; And
The stacking sheet rubber temperature sensor 30 is connected to the air supply temperature sensor and the air supply valve so as to be interchangeable, and compares the actual rubber temperature received from the stacking sheet rubber temperature sensor 30 with a preset standard temperature. And a controller (70) for controlling the temperature and the air supply amount of the cooling air supplied from the air supply source (40).
The method of claim 1,
The air supply source 40 supplies a high temperature air and a high temperature supply source 42 having an air supply temperature sensor 42b at its end, and a medium temperature source 44 supplying medium temperature air and a supply air temperature sensor 44b at its end. And a low temperature source 46 for supplying low temperature air and having an air supply temperature sensor 46b at an end thereof.
The air supply pipe is a hot air supply pipe 62 for connecting the hot supply source 42 and the air supply unit 80, and a medium temperature air supply pipe for connecting the medium temperature supply 44 and the air supply unit 80 (64). And a low temperature air supply pipe (66) connecting the low temperature source (46) and the air supply unit (80).
3. The method of claim 2,
The middle temperature source 44 includes a supply pipe 41 for supplying air at room temperature,
The high temperature source 42 is provided to surround the supply pipe 41 and the supply pipe for supplying air at room temperature, and includes a heating pipe 43 for flowing steam or hot water,
The low temperature source 46 is a sheet rubber temperature control device, characterized in that it comprises a supply pipe 41 for supplying air at room temperature and the cooling pipe 47 is installed so as to surround the supply pipe.
The method of claim 1,
The air supply source 40 is a supply pipe 52 for supplying air at room temperature, a heating pipe 53 is installed to surround one side of the supply pipe 52, and is installed to surround the other side of the supply pipe 52 Sheet rubber temperature control device comprising a cooling tube (54).
The method of claim 1,
The air supply source 40 is a sheet characterized in that it comprises a supply pipe 52 for supplying air at room temperature, the heating pipe 53 and the cooling pipe 54 is installed to be repeatedly crossed in the supply pipe 52 Rubber temperature control.

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