JP3410637B2 - Control method of topping device and topping device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling a topping device and a topping device which can produce a rubberized ply having a stable thickness immediately after the start of a topping operation.

[0002]

2. Description of the Related Art Conventionally, there is known a topping method for manufacturing a rubberized ply by crimping a rubber film formed by using a calender roll machine to a cord parallel body in which cords are arranged in parallel. Further, in a calender roll machine, generally, when the rubber is pressed against the cord parallel body, the calender roll may be subjected to a large pressure from the rubber and cord parallel bodies, and the roll itself may be bent. There is a problem that the thickness of the pulling ply in the width direction becomes uneven.

In order to prevent such unevenness of the rubber thickness, for example, as shown in FIG. 8 (a), the calender roll pairs a and b arranged with a gap h between them are rolled through the gap h. By adjusting the roll gap adjusting means by moving it up and down (the left and right can be set independently), or by tilting the rotation axis of the calendar roll a with respect to the calendar roll b as shown in FIG. 8B. , Roll cross adjusting means for keeping a large gap between both ends with respect to the middle point N, and as shown in FIG. 8 (c), by bending the calendar roll a by using hydraulic pressure or the like, the other calender roll b In the above, a calender roll machine is provided with roll vent adjusting means for keeping a large gap between both ends.

[0004]

As described above, the development of the roll gap adjusting means, the roll cloth adjusting means, or the roll vent adjusting means significantly improves the nonuniformity of the thickness of the rubber film, the rubberized ply and the like. However, the specific setting values of these adjusting means still largely depend on the experience and intuition of a skilled worker. Further, the proper values of these adjusting means vary with the season and the like. Immediately after the start of the topping work, it is difficult to adjust the roll gap of the calender roll machine, and it may take a long time to produce a rubberized ply with a stable thickness and quality. Many rubberized plies produced between and after adjustment may be wasted.

The inventions set forth in claims 1 and 3 of the present invention have been devised in view of the above problems, and produce a rubberized ply having a stable thickness and quality immediately after the start of the topping operation. It is an object of the present invention to provide a control method of a topping device and a topping device that can be used. Also,
It is an object of the inventions of claims 2 and 4 to provide a topping device control method and a topping device that can suppress deterioration of quality due to subsequent environmental changes even after the topping is stabilized.

[0006]

The invention according to claim 1 is
By providing at least one adjusting means of roll gap adjusting means, roll cross adjusting means or roll vent adjusting means, a rubber film from the gap of a calender roll machine including a pair of calender rolls arranged with adjustable gaps. While continuously molding, a method of controlling a topping device for manufacturing a rubberized ply by pressure bonding the rubber film to a cord parallel body using a pressure bonding means, a temperature control temperature of a calendar roll at the start of topping,
A database that stores manufacturing data including ambient temperature and gap data of the calender roll pair, product data including ply specification data and rubber finish produced by the rubbery manufacturing, and manufacturing data about preferable product data. Process for extracting and storing preferable manufacturing data regarding the rubberized ply to be manufactured from the above, processing for measuring and storing status data including the current temperature control temperature and ambient temperature of the calendar roll, the status data and manufacturing data And the gap data of the manufacturing data is corrected based on the comparison result to obtain the optimum gap data at the start of topping, and the gap of the calender roll pair is adjusted to be equal to the optimum gap data at the start of topping. And the process of starting topping after A control method of the topping device according to symptoms.

According to a second aspect of the present invention, there is provided a process of extracting, from the database, information about the proper thickness of the rubberized ply and the proper thickness of the rubber film from the product data of the rubberized ply to be manufactured and storing the information. , After starting the topping, measure the thickness of the rubberized ply and the thickness of the rubber film, compare the measurement results with the appropriate thicknesses, and start the topping by correcting the optimum gap data based on the comparison result. 2. The method of controlling a topping device according to claim 1, further comprising a process of obtaining optimum gap data after that and a process of adjusting the gap of the calender roll pair to be equal to the optimum gap data after the start of the topping. .

According to the third aspect of the invention, a pair of rollers arranged with a variable gap by providing at least one of a roll gap adjusting means, a roll cross adjusting means or a roll vent adjusting means. A calender roll machine capable of continuously molding a rubber film from the gap of the calender roll, a crimping means capable of crimping the rubber film to a cord parallel body, and a control device,
The control device stores a process of storing situation data including the measured temperature control temperature of the calendar roll and the ambient temperature, and the temperature control temperature of the calendar roll at the start of topping, the ambient temperature and the gap between the calendar roll pair. The manufacturing data including the data, the specification data of the ply to be rubberized and the product data including the finishing data are stored, and the database for storing the manufacturing data of the preferable product data is preferable for the rubberized ply to be manufactured. The process of extracting and storing the manufacturing data and comparing the situation data with the manufacturing data,
The process of obtaining the optimum gap data at the start of topping by correcting the gap data of the manufacturing data based on the comparison result, and the topping is started after adjusting the gap of the calender roll pair to the optimum gap data at the start of topping. Is a topping device.

According to a fourth aspect of the present invention, the control device retrieves, from the database, information regarding the proper thickness of the rubberized ply and the proper thickness of the rubber film from the product data of the rubberized ply to be manufactured. And the thickness of the rubberized ply and the thickness of the rubber film measured after the start of the topping are compared with the respective appropriate thicknesses, and the topping is started by correcting the optimum gap data based on the comparison result. 4. The topping device according to claim 3, wherein the process for obtaining the optimum gap data after that and the process for adjusting the gap of the calender roll pair to be equal to the optimum gap data after the start of the topping are performed.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A topping device according to an embodiment of the present invention will now be described with reference to the drawings together with its control method. As shown in FIG. 1, the topping device 1 of the present invention has a pair of calender rolls (2a, 2b), (2c, 2) arranged with variable gaps h1, h2, h3.
d) and (2b, 2c), and the gap h
1, a calender roll machine 2 capable of continuously molding a rubber film G from h2, a crimping means 4 capable of crimping the rubber film G to the cord parallel body 3, and a controller 5.
For example, one that manufactures a rubberized ply for a tire is exemplified.

In the present embodiment, the calender roll machine 2 has roll gap adjusting means (not shown),
By providing at least one adjusting means of roll cross adjusting means or roll vent adjusting means, said gap h1
~ H3 is variable. For roll gap adjusting means, roll cross adjusting means or roll vent adjusting means,
Although it is the same as the adjusting means described in the related art (see FIG. 8) and the description thereof is omitted here, the calendar roll machine 2 of the present invention includes at least one adjusting means among these adjusting means. However, more preferably, in this embodiment, the roll gap adjusting means and the roll cross adjusting means are provided.

In the present embodiment, the topping device 1 exemplifies a device that tops both sides of the cord parallel body 3, and the calender roll machine 2 cords into the gap h3 between the calender rolls 2b and 2c as shown in FIG. By feeding the parallel body 3, the calender rolls 2 are formed on both sides of the parallel body 3.
The rubber films G, G formed on the surfaces of b and 2c can be pressure bonded. Therefore, in this example, the calender rolls 2b and 2c of the calender roll machine 2 also function as the pressure bonding means 4. The calender roll machine 2 is supplied with the seed rubber g which has been heated, kneaded and plasticized in advance by a conveyor.

Next, various information is input to the control device 5. That is, the temperature control thermometers 6a, 6b, 6c, 6d
To current temperature control temperature Tn1, Tn of each calendar roll
2, Tn3, Tn4, the ambient temperature Te from the ambient temperature meter 7, the current ambient temperature Te, the thickness Hp and the rubber film G of the manufactured rubberized ply P from the ply thickness detection device 9 and the rubber film thickness detection device 10. The thickness Hg of each is input.

Further, as shown in FIG.
A database DB is connected so that it can be accessed freely. This database DB is, for example, as shown in FIG. 3, the manufacturing data A including the temperature control temperature of the calender rolls at the start of topping, the ambient temperature, and the gap data of the calender roll pairs, and the ply and the film manufactured by the rubbering process. Data B1 about finish, finish data (appropriate thickness of rubberized ply, proper thickness of rubber film) B2
In addition to storing the product data B including the product data B, the manufacturing data for the preferable product data which has no problem in quality in the past is stored in a plurality of lots for each ply size.

The gap data of the pair of calender rolls specifically includes roll gap data, roll cross data, roll vent data and the like of each of the calender rolls 2a to 2d, and the roll gap data is included in the roll gap data. The gap values at both ends of the roll, the roll cross data include the intersection angle of the rolls, and the roll vent data include the gap values at both ends and the center of the roll.

Here, "there is no problem in terms of quality" means that the so-called "lifting" of the ply that occurs when the pressure bonding force between the rubber film G and the cord parallel body 3 is small, or conversely the pressure bonding force is too large. It means that there is no trouble such as "crushing" of the ply caused by.

Further, the control device 5, as shown in FIG.
In the present embodiment, the motors M1 and M2 for roll gap adjustment capable of adjusting the gap h1 by moving the calender roll 2a and the motor for roll gap adjustment capable of adjusting the gap h3 by moving the calender roll 2c. Roller gap adjusting motors M5 and M6 capable of adjusting the gap h2 by moving M3 and M4 and the calendar roll 2d, and the calendar roll 2
Roller cloth adjusting motors M7, M8 for crossing a with the calender roll 2b, and the calender roll 2
Motors M9 and M10 for roll cross adjustment that cross d with respect to the calender roll 2c can be driven based on optimum gap data described later.
By arranging the motors on the left and right sides of the calendar rolls in this way, the positions can be adjusted independently on the left and right sides.

The control device 5 receives inputs from the temperature control thermometers 6a to 6d, the ambient thermometer 7, the ply thickness measuring device 9 and the rubber film measuring device 10 as shown in FIG. The interface 5a, a CPU for performing various arithmetic processes, a ROM in which programs and the like are stored, a work RAM that can be temporarily stored, an output interface 5b, and a motor controller 11 can be included. The CPU is connected to the database DB by a bus line.

Next, the processing procedure of the control device 5 will be described with reference to the flow charts shown in FIGS. First, the control device 5 takes out preferable manufacturing data regarding the rubberized ply to be manufactured, for example, the A-sized rubberized ply from the database DB, and stores it in the RAM that can be temporarily stored (step S1).

At this time, if a large number of lots of A-size rubberized plies are stored, the latest 1
Although the manufacturing data of one manufacturing lot may be read, it is preferable to read the manufacturing data of a plurality of recent lots.

Next, the control device 5 obtains the status data including the temperature control temperatures Tn1 to Tn4 of the current calendar rolls 2a to 2d and the ambient temperature Te from the temperature control thermometers 6a to 6d.
Also, it is read from the atmosphere thermometer 7 and stored in the RAM (step S2).

Next, the control device 5 compares the situation data stored in the RAM with the manufacturing data, and corrects the gap data included in the manufacturing data based on the comparison result. The process for obtaining the optimum gap data is performed (step S3). Here step S1
If there is only one production data read by, the calender roll temperature control temperature and atmosphere temperature of this production data are compared with the calendar roll control temperature and atmospheric temperature of the situation data, and the production data is based on these temperature differences. Of the calender rolls 2a to 2d, that is, roll gap data, roll vent data, and the like, can be corrected to obtain optimum gap data at the start of topping.

In step S1, when the manufacturing data of a plurality of lots are read, the temperature control temperature of the calender roll at the start of topping included in the manufacturing data, the ambient temperature, the roll gap of each of the calender rolls 2a to 2d. The data, roll cross data, and roll vent data are averaged, and this average value is compared with the situation data to similarly obtain optimum gap data at the start of topping.

Analysis of preferable manufacturing data relating to the rubberized ply to be manufactured shows that there is a certain correlation between the temperature control temperature and atmosphere temperature of the calendar roll at the start of topping and the gap data of the calendar roll. Therefore, if the present temperature control temperature and ambient temperature of the calender roll are known, it is possible to obtain the optimum calender roll gap data using the manufacturing data in the database.

The optimum calender roll gap data includes roll gap data and roll cross data (roll vent data, if necessary) of each of the calender rolls 2a to 2d, as described above.

Next, the control unit 5 makes the gaps h1 to h3 of the calender rolls 2a to 2d equal to the optimum gap data obtained by the above calculation at the start of topping, via the motor driver 11 so that each of the gaps h1 to h3 becomes the same. Motor M1
After the M10 is driven and adjusted, a process of starting topping is performed (step S4).

As described above, according to the topping device and the control method of the topping device of the present invention, before the start of the topping operation, the information of the past topping start and the present situation are compared to determine the optimum calender roll gap. Since it asks for data and starts topping with this,
It is possible to manufacture a rubberized ply having a stable thickness with little quality trouble immediately after the start of topping without relying on the intuition of a skilled worker.

Even after the start of topping, the temperature control temperature of the calender roll and the ambient temperature change. Therefore, even when the ply thickness once stabilizes immediately after the start of topping, it is desirable to respond to environmental changes by further changing the optimum gap data of the calender rolls. The control device 5 exemplifies a device that also performs such processing.

FIG. 6 shows the procedure of such processing of the control device 5. First, the control device 5 extracts information about the proper thickness Hpt of the rubberized ply and the proper thickness Hgt of the rubber film from the product data of the rubberized ply to be manufactured from the database DB and stores the information in the RAM. Perform (step S5). The appropriate thicknesses Hpt and Hgt preferably include the thicknesses at a total of three positions, that is, the ply, both ends in the width direction of the film, and the central part in the present embodiment.

Next, the control device 5 reads the current thickness Hp of the rubberized ply and the thickness Hg of the rubber film G from the ply thickness measuring device 9 and the rubber film thickness measuring device 10 and stores them in the RAM. Perform processing (step S
6). In the same manner as described above, the ply thickness measuring device 9 and the rubber film thickness measuring device 10 also correspond to the proper thickness, and the ply, the widthwise both ends of the film, and the central portion, respectively, at three positions in total. It includes the thickness.

Then, the control device 5 controls the proper thickness Hpt of the rubberized ply and the proper thickness Hgt of the rubber film of the product data, and the current thickness Hp of the rubberized ply.
And the thickness Hg of the rubber film G are compared with each other, and based on the comparison result, the optimum gap data at the start of topping is corrected so that the thicknesses of the rubberized ply P and the rubber film G approach the proper thickness. By doing so, processing for obtaining optimum gap data after the start of topping is performed (step S
7).

As described above, in the present embodiment, the optimum gap data at the start of topping is calculated to start topping, and the optimum gap data after the start of topping is calculated to correct the optimum gap data at the start of topping. Therefore, it is possible to effectively prevent the quality of the rubberized ply from deteriorating due to environmental changes after the start of topping by correcting the optimum gap data at the start of topping to the optimum gap data after the start of topping. High rubberized ply productivity can be increased.

As described above, as shown in FIG. 7, the control device 5 controls the topping speed (per unit time) at the topping initial stage (between ta and tb) from ta at the start of topping to tb until the quality becomes stable. The calender rolls 2a to 2b are rotated so that the length of the cord parallel body topping) gradually rises. The quality of the rubberized ply becomes unstable at the initial stage of this topping, but according to the present invention, this time can be shortened and a rubberized ply of stable quality and thickness can be manufactured at an early stage.

Further, the quality is stable in the middle period of the topping (between tb and tc), and the topping speed is the maximum and maintains a constant speed. In the present embodiment, this tb-tc
Even during the period, the rubberized ply and the rubber film are shown to be in a preferable mode in which the thickness of the rubber film is appropriately monitored and the optimum gap data is corrected. Therefore, the quality of the rubberized ply manufactured during this period is very high. Become.

Further end of topping (between tc and td)
, The quality becomes a little unstable due to the end of topping, but the time is very short. Further, the topping speed during this period is controlled so as to gradually decrease.

[0036]

As described in detail above, according to the control method of the topping device according to the first aspect and the topping device according to the third aspect, there is no quality problem in the past before the start of the topping operation. Immediately after starting the topping, it is necessary to compare the information at the start of topping and the current situation to find the optimum gap data of the calendar roll, and to start the topping without relying on the intuition of a skilled worker. It is possible to manufacture a rubberized ply of stable quality and thickness from the above, and it is possible to shorten the time from the start of topping until the quality of the rubberized ply is stabilized, and to greatly enhance the productivity of the rubberized ply.

According to the topping device control method of the second aspect and the topping device of the fourth aspect,
After starting topping, monitor the thickness of the rubberized ply and the thickness of the rubber film that have been topped,
By comparing this with the optimum thickness of the rubberized ply and the appropriate thickness of the rubber film to obtain the optimum gap data after the start of topping, and by correcting the optimum gap data at the start of topping, the above-mentioned effects can be added. Also, it is possible to effectively prevent the quality of the rubberized ply from deteriorating according to the changing situation even after the start of topping, and it is possible to enhance the productivity of the rubberized ply of high quality.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing an embodiment of the present invention.

FIG. 3 is a conceptual diagram illustrating contents of data in a database.

FIG. 4 is a block diagram illustrating a control device.

FIG. 5 is a flowchart showing a processing procedure of the control device.

FIG. 6 is a flowchart showing a processing procedure of the control device.

FIG. 7 is a timing chart of the control device.

8A to 8C are roll gaps, FIG.
It is a diagram explaining a roll cloth and a roll vent.

[Explanation of symbols]

1 topping device 2 calendar roll machine 3 code parallel bodies 4 Crimping means 5 control device DB database G rubber film P rubberized ply

Claims (4)

(57) [Claims] 1. A calender roll machine comprising a pair of calender rolls spaced by an adjustable gap by providing at least one of a roll gap adjusting means, a roll cross adjusting means or a roll vent adjusting means. A method of controlling a topping device for continuously forming a rubber film from the gap and press-bonding the rubber film to a cord juxtaposed body using a press-bonding means to produce a rubberized ply. Manufacturing data including temperature control temperature, atmosphere temperature and gap data of the calender roll pair, specification data of the ply produced by rubberizing, product data including finish data, and manufacturing data about preferable product data The rubberized ply manufactured from the database Processing for extracting and storing preferable manufacturing data relating to the above, processing for measuring and storing status data including the current temperature control temperature and ambient temperature of the calendar roll, and comparing the status data with the manufacturing data, and comparing them. A process of obtaining optimum gap data at the start of topping by correcting the gap data of the manufacturing data based on the result, and a process of starting the topping after adjusting the gap of the calender roll pair to be equal to the optimum gap data at the start of the topping. A method of controlling a topping device, comprising: 2. A process for extracting and storing information about the proper thickness of the rubberized ply and the proper thickness of the rubber film from the product data of the rubberized ply to be manufactured from the database and storing the information after starting the topping. The thickness of the ply and the thickness of the rubber film are measured, the measurement result is compared with each of the appropriate thicknesses, and the optimum gap data is corrected based on the comparison result to obtain the optimum gap data after the start of topping. 2. The method of controlling a topping device according to claim 1, further comprising: a process and a process of adjusting the gap of the calender roll pair to be equal to the optimum gap data after the start of the topping. 3. Rubber from a pair of calender rolls arranged with a variable gap by providing at least one adjusting means of roll gap adjusting means, roll cross adjusting means or roll vent adjusting means. A calender roll machine capable of continuously forming a film, a crimping means capable of crimping the rubber film to the cord parallel body, and a control device, and the control device is a temperature of the current calender roll measured. A process of storing status data including a temperature control temperature and an atmospheric temperature, manufacturing data including a temperature control temperature of a calendar roll at the start of topping, an atmospheric temperature, and gap data of the calender roll pair, and a rubberized manufacturing process using the manufacturing data. Stores ply specification data and product data including finish data, and The process of taking out and storing preferable manufacturing data regarding the rubberized ply to be manufactured from the database accumulating all the manufacturing data, and comparing the situation data with the manufacturing data, and based on the comparison result, the gap data of the manufacturing data is obtained. A topping device, which performs a process of obtaining optimum gap data at the start of topping by correction, and a process of starting topping after adjusting the gap of the calender roll pair to be equal to the optimum gap data at the start of topping. . 4. The control device, from the database,
A process of extracting and storing information on the proper thickness of the rubberized ply and the proper thickness of the rubber film from the product data of the rubberized ply to be manufactured, and the thickness of the rubberized ply measured after the start of topping and the rubber film. The thickness of the calender roll is compared with each of the appropriate thicknesses, and the optimum gap data is corrected based on the comparison result to obtain the optimum gap data after the topping is started. 4. The topping device according to claim 3, wherein the topping device adjusts the optimum gap data of 1.