JPS5872439A - Method and apparatus for discriminating rubber product - Google Patents

Abstract

PURPOSE:To discriminate the kinds of the rubber product easily and positively by forming plural pair of uneven patterns consisting of the pairs of specified discriminating bars to the surface of the rubber product (such as a tire), detecting the patterns and processing the product. CONSTITUTION:A plural pair (such as, 4, 5, 6) of the discriminating bars composed of the four convex (or concave) patterns, which positively cross a positional line P and cross or do not cross a discriminating line S, are formed to the clincher section 2 of the tire 1 (a symbol 3 is start bars). The presence of each discriminating bar group is detected along the discriminating bar S in the tire to which said discriminating bars are shaped, the value is converted into the number (0-9) of a decimal number system through a binary number system, and numerals obtained are made correspond to codes previously determined, thus easily displaying the kinds of the tire. When the start bars 3 are formed by four bars crossing the discriminating line S (that is, they are fifteen when detecting value is converted into the decimal number method), detection in the forward direction of the tire to be inspected can easily be decided.

Description

[Detailed description of the invention] The present invention relates to improvements in rubber product identification methods and devices.

In recent years, with the progress in automation of rubber products, such as tire finishing lines and inspection lines, as well as various testing materials and measuring machines, it has become necessary to automatically identify the type of tire. Tire flea strips originally have various letters, numbers, symbols, etc. engraved on the sidewalls so that people can see and identify them, but the engraved parts and other parts are all black with no contrast and are plain. Since it only appears as a concavo-convex pattern, it was extremely difficult to read it automatically.

The present invention has been made in view of the above-mentioned conventional problems.
The first invention is to integrally mold a concave or convex identification bar with different regularities depending on the type of rubber product on the identification surface of a rubber product that has no contrast, and to improve the unevenness of the identification bar. This method automatically identifies the type of rubber product quickly and reliably by detecting it using a sensor I.

A second invention is a device for identifying an identification bar integrally molded in a concave or convex shape with different regularities depending on the type of rubber product on the identification surface of a rubber product, A sensor roller that rolls and can be raised and lowered according to the unevenness of the identification bar, and a sensor roller that turns on and off in conjunction with the raising and lowering of the sensor roller.
A limit switch for turning off rubber products is equipped with a sensor consisting of a sensor and an identification circuit that replaces the output signal of the sensor with a numerical code and displays the type of tire corresponding to the numerical code. This is a device that automatically, quickly and reliably identifies the type of

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

As shown in FIG. 1, the clincher part 2 of the tire 1 (
4 (4a to 4d) to have different regularities in the radial direction depending on the type of tire
), 5 (5a to 5d), 6 (6a to 6
d) are integrally molded in a radial manner. Note that the identification bar may have a concave shape.

The above-mentioned start par and identification bars 3 to 6 are shown in Fig. 2(a).
As shown in FIG. 2(b), for a 10.00-20 tire, the length is 50 B and the width is 10 B, for example.

It consists of ridges with a height of 5 fl arranged at intervals of 10 fl.

The upper half of the figure is set to the position line P, so there is no cutout part, but the lower half of the figure is set to the identification line S, so a cutout part is formed.

That is, the identification bars 4 to 6 are composed of a set of four identification bars, and the four identification bars are "1" and 1 "absent" when "present" in the identification line S according to the binary coded decimal system. °0”
It is read as , and represents the one-digit numerical value shown in Table 1.

Table 1 Therefore, the identification bars 4 to 6 in FIG. 2(a) represent the numerical value 957. The numerical code is associated with a specific tire type in advance as shown in Table 2, and by identifying the numerical code, the type of tire can be known.

Table 2 The start bar 3 is composed of a set of start bars, and is read in the same manner as the above-mentioned identification bars 4 to 6 to detect when reading of the identification bars 4 to 6 starts.

If a position line P is set in addition to the identification line S for each bar 3 to 6, and the two lines are read at the same time, it will be possible to reliably identify the tires even when the rotation becomes irregular or the tire width is changed. and improve reliability.

However, if the rotation of the tire 1 is regular, etc., as shown in Fig. 3 (
A configuration in which the position line P is not set as in a) may also be used.

In addition, as shown in Figure 3(b), the starting par 3 was changed to 4.
When configured with one set of starters 3a to 3d, the rotation of the tire 1 is not limited to one direction.

If only one starter par 3d is used, incorrect reading of identification bars 4 to 6 will occur when the rotation is reversed, but identification bars 4 to 6 will be incorrectly read.
6 cannot be "1" for all 4 out of 1 set (the numerical value is θ ~ 9), so 1 set of 4 start bars and 3 of 4 identification bars are used.
If there is a set, the set in which all four bars are 1" indicates the reading start direction, so it becomes possible to immediately determine whether the tire is rotating in the opposite direction.

In addition, although the identification bars 4 to 6 in the above example are set to 4, the present invention is not limited to this. Similarly, the types of tires 1 may be set to 3.
It is not limited to numerical codes of digits.

On the other hand, as shown in FIGS. 4 and 5, sensors 8 for detecting the bars 3 to 6 of the tire 1 are arranged on both sides of the frame 9 to guide rollers 10 and 10 for rolling the clincher portion 2 of the tire 1. 10, the bolt part 11 of the roller holder 11.11
a, 11a, and the bolt portion 11a,
1 ja is provided with an adjusting nut 12.12 by means of which the height of the guide roller 10.10 can be adjusted.

Inside the frame 9, a sensor roller 13 that moves along the position line and a sensor roller 14 that rolls on the identification line S are supported by roller holders 13a and 14a so as to be movable up and down, and the roller holders 13a and 14a
Limit switches 13b and 14b are connected to the guide rollers 10.10 so that the sensor rollers 13.14 turn ON when they ride on each of the bars 3 to 6, and turn OFF when they fall between the bars 3 to 6. Adjust the height with .

Therefore, the limit switches 13b and 14b.

Referring to FIG. 9, the limit switch 13b on the position line P is turned on and off continuously by each bar 3 to 6, while the limit switch 14b on the identification line S is turned on and off by each bar 3 to 6.
~It starts to turn ON and OFF from No. 6 onwards.

The limit switches 13b, 14b are connected to chattering prevention circuits 15a-, 1, as shown in FIGS.
5b (including Schmitt circuits 16a and 16b), each limit switch 13b, 1 shown by 0 in FIG.
4b is waveform-shaped and outputted as a rectangular wave from the chattering prevention circuits 15a and 1'5b shown by ■ in the figure, and the output signal is input to the CPU 17.

In the CPU 17, the delay circuit 18 outputs the output signal of the pull 1 position line P, shown in FIG.

The reason why the delay circuit 18 is provided is that the waveform of the output signal of the position line P may actually rise earlier than the output signal of the identification line S, so the AND circuit 19 is also used to simultaneously output both signals. This is to guarantee. Therefore, the delay time is optimally set based on the thickness of each bar 3 to 6, the rotational speed of the tire 1, etc.

The output signal of the position line P from the delay circuit 18 and the output signal of the identification line S from the AND circuit 19 are input to the bar state phase discrimination circuit 20, and as shown in FIG.
and determines that the output signal of the identification line S is normal,
After reading whether the output signal is 1" or "0" using the binary coded decimal system and decoding it into a numerical code of °957" by the code decoding circuit 21, the code/tire type conversion circuit 221
The type of tire 1 of Koyori @957” is 10.000-2
This is converted into 0TK and displayed externally on the display device 23.

If the above-mentioned identification device for the tire 1 is configured, the tires 1 are stacked horizontally on the rotary table 24, and the sensor rollers 13 and L4 of the sensor 8 are separated from the position line P by an input S.
When the tire 1 is rotated by the rotating table 24 after the guide rollers 101 and 10 are brought into contact with the clincher part 2 on the trajectory of the start bar 13, as shown in FIG. Referring to the flowchart, 1, the limit switches 13b and 14 due to the unevenness of each bar 3 to 4
b turns ON and OFF, limit switches 13b and 14
ON and OFF signals are output from b.

The output signals of the position line P and the identification line S are processed by chattering prevention circuits 15a and 15b, a delay circuit 1B, and an AND circuit 19, and a bar state determination circuit 20 determines whether the output signal is a correct image. ``1'' or ``0'' is read, the code decoding circuit 21 decodes it into a numerical code of 9571, and the code/tire type conversion circuit 22 reads tire 1.
The type is converted to 10.000-20TK, and it is displayed on the display device 23.

The tire 1 is identified while being rotated once on the rotating table 24.

In the above embodiment, the limit switch 1 is used as the sensor 8.
3b and 14b are used, but a laser or an ultrasonic sensor may also be used.

All of these are non-contact and detect the distance from the sensor to the object. Therefore, when the distance is short (convex part), it is determined to be ON, and when it is long (concave part), it is determined to be OFF.
Outputs N and OFF signals.

As is clear from the above description, the present invention has the following features.

A concave or convex identification bar molded into one identification surface of the rubber product is detected by a single sensor, so even if the rubber product has no contrast, its type can be automatically identified from the identification bar. It will now be possible to quickly and reliably identify various types of rubber products (such as tires) and automatically match various measurement data from inspection and testing machines to the type of rubber product (for example, tire). Furthermore, since the type of rubber product can be automatically determined on a finishing line or the like, exact quantity counting and checking can be easily performed.

[Brief explanation of drawings]

Figure 1 is a front view of the tire with an identification bar, Figure 2 (a
) is a front view of the identification par, and Figure 2 (b) is Figure 2 (a).
3(a) and 3(b) are front views of the identification bar of the modified example, FIG. 4 is a sectional view showing the relationship between the sensor and the tire, and FIG. 5 is a sectional view of the sensor. FIG. 6 is a block diagram of the identification circuit, and FIG. 7 is a block diagram of the identification circuit. 1... Tire, 3 (3a to 3d)... Start bar, 4 (4a to 4d), 5 (5a to 5d), 6 (6a
゛~6d)...Identification bar, 8...Sensor, 10.
...Guide roller, 13.14...Sensor roller,
13b, 14b... limit switch, 15a, 15
b...Chattering prevention circuit, 18...Delay circuit, 20...Bar state determination circuit, 21...Code decoding circuit, 22...Code/tire type conversion circuit, 23.
...Display device. Patent applicant Agent: Sumitomo Rubber Industries, Ltd.
Person Patent attorney Aohaku Ao and 2 others Tsud Figure 4 4 Figure 5 Figure 8 Figure 9 r-ff1. L# Otori ↓ Pot 11 times - Mouse Breath - 1 round → Figure 10 Procedural amendment December 2, 1980 Commissioner of the Japan Patent Office Dear ■, Indication of the case 1982 Patent Application No. 173310 2, Title of the invention Rubber product identification method and device 3, relationship with the case of the person making the amendment Patent applicant 4, agent address: Honmachi Building, 2-10 Honmachi, Higashi-ku, Osaka-shi, Osaka Name: Patent attorney (6214) Aoyama Aoyama and two others C) Drawings (Fig. 4, Fig. 76) 7. Contents of amendment ■ Detailed explanation of the invention in the specification (1) Page 6, line 17, after “...” Therefore, since reverse rotation can be determined, the code can be correctly determined and the correct tire type can be identified.In other words, if it is determined that the tire is rotating in reverse, the read data is rearranged into forward and backward rotation and executed by the CCPU). Insert "Identify." ■Correct the drawings Figures 4 and 7 as shown in the attached sheet. 'The above Figure 7 Procedural Amendments Director General of the Patent Office 1, Incident Indication Patent Application No. 173310 of 1982 2,
Name of the invention Rubber product identification method and device 3 Relationship with the person making the amendment Case Patent applicant 4, Agent 5, 11'tmIIPJE Materials (Sponsored) Claims [(1) Surface of rubber product with no contrast A rubber product identification method characterized in that: A pair of sensor rollers that roll on the surface of the rubber product with different rules depending on the type of rubber product and can be raised and lowered according to the unevenness of the identification bar, and are turned on and off in conjunction with the raising and lowering of the sensor rollers. 1. A rubber product identification device comprising: a sensor consisting of a pair of limit switches; and a roughly binary digital signal output from the sensor. ”185

Claims (2)

[Claims] (1) Identification of rubber products without contrast,
A feature is that a concave or convex identification bar with different regularity for each type of rubber product is integrally molded, and the unevenness of the identification bar is detected by a sensor to identify the type of rubber product. Rubber product identification method. (2) Rubber product identification surface G This is a device for identifying an identification bar that is integrally molded into a concave or convex shape with different regularities depending on the type of rubber product, and the identification surface of the rubber product is rolled. A sensor roller that can be raised and lowered according to the unevenness of the identification bar, and a limit switch that turns on and off in conjunction with the raising and lowering of the sensor roller, and the output signal of the sensor is replaced with a numerical code. , and an identification circuit that displays the type of rubber product corresponding to the numerical code.