JPH0992160A - Inserting direction discriminating device of cathode-ray tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an artificial error in inserting a cathode-ray tube, and enhance the working efficiency by reading a control bar code of a bar code label, and controlling a line conveyor and a reversing operation mechanism part on the basis of its signal. SOLUTION: A cathode-ray tube is conveyed at prescribed speed through a line conveyor, and is reversed in the prescribed direction in a prescribed position, and prescribed work is performed. In a manufacturing method of the cathode-ray tube, a control bar code 4a of a bar code label 4 stuck to a funnel part 3 of the cathode-ray tube 1 is read through the scanning light 10a by a bar code reader 10. Then, the possibility of reading a bar code is detected, and its signal is transmitted to a line control part 11. Here, the inserting direction of the cathode-ray tube 1 is automatically determined on the basis of this detecting signal, and the line conveyor 12 and a reversing operation mechanism part are controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube throwing direction discriminating apparatus, and more particularly to a cathode ray tube throwing direction discriminating apparatus which uses a management bar code to automatically determine the throwing direction of the cathode ray tube.

[0002]

2. Description of the Related Art Generally, in the process of manufacturing a cathode ray tube, a bar code label in which a bar code is widely described is used for managing products and the like. This barcode label is
Depending on the type of cathode ray tube, especially the size, a bar code label is attached to the panel portion or funnel portion of the cathode ray tube for management.

FIG. 5 is a schematic view of the manufacturing process of a color cathode ray tube. Here, it is assumed that the bar code label with the bar code is attached to the panel portion of the cathode ray tube in the mask assembling step b shown in FIG. 5, and is controlled in each step thereafter. The direction in which the cathode ray tube is put in each step of manufacturing the cathode ray tube is not necessarily a fixed direction and often differs depending on the product type or the manufacturing method. Therefore, the line worker attaches to the corresponding equipment or sends it to the next process according to the input direction specified for each type of cathode ray tube.

[0004]

However, in the method of manufacturing a cathode ray tube as described above, the line worker determines the direction of insertion of the cathode ray tube and attaches it to the corresponding equipment,
A quality accident may occur due to human error because it is sent to the next process. In particular, this human error increases when the product type is switched or in a line in which different product types coexist on the same line.

Therefore, the present invention has been proposed in view of the above problems, and an object of the present invention is to use a bar code label attached to a cathode ray tube, which is originally a management bar code, and It is an object of the present invention to provide a device for identifying the direction of insertion of a cathode ray tube, which provides means for automatically determining the direction of insertion, reduces human error and automates the direction of insertion of the cathode ray tube to improve work efficiency.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a cathode ray tube loading direction identification device in which a barcode label having a management barcode is attached to the cathode ray tube, and a barcode reader for reading the barcode, (EN) Provided is a cathode ray tube closing direction identifying device including a line conveyer for conveying a cathode ray tube, a reversing operation mechanism section for reversing the cathode ray tube, and a line control section for controlling the entire apparatus.

Further, there is provided a device for identifying a throwing direction of a cathode ray tube in which a bar code label is attached to a funnel portion of the cathode ray tube. Also provided is a cathode ray tube throwing direction identifying device that automatically determines the throwing direction of the cathode ray tube by detecting whether or not the barcode reader can read the barcode.

Further, two bar code readers for reading bar codes are arranged at different installation locations, and the bar code readability of two kinds of bar code labels corresponding to each bar code reader is checked. (EN) Provided is a cathode ray tube closing direction identifying device which detects and automatically determines the closing direction of a cathode ray tube when a specified condition is met.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As described above, a bar code label, which generally describes a bar code, is attached to the panel portion or the funnel portion of the cathode ray tube and is widely used for managing products and the like. In addition, recently, since the panel section is subjected to the explosion-proof band treatment, it is becoming more and more common to attach a bar code label to the panel section in the preceding step of the manufacturing process and to the funnel section in the subsequent step. Two embodiments of the present invention will be described with reference to the drawings.

The first embodiment will be described. FIG. 1 is a schematic system diagram showing an overall configuration of a cathode ray tube closing direction identifying device according to the present invention, and FIG. 2 is a schematic diagram showing a barcode detection method of the cathode ray tube entering direction identifying device. In FIG. 2, 1 is a cathode ray tube, 2 is a panel part, 3 is a funnel part, 4 is a bar code label, 4a is a bar code, and 1 is a bar code.
Reference numeral 0 is a bar code reader, 10a is scanning light of the bar code reader, 11 is a line control unit, 12 is a line conveyor, and 13 is a reversing operation mechanism unit.

As shown in the schematic system diagram of FIG. 1, the apparatus for identifying the insertion direction of a cathode ray tube includes a bar code reader 10 for reading a bar code 4a on a bar code label 4 attached to the cathode ray tube 1 and the entire identification apparatus. And a line conveyor 12 that conveys the cathode ray tube. The line control unit 11 plays a central role and commands the bar code reader 10, the line conveyor 12, and the reversing operation mechanism unit 13 to transfer signals.

The bar code reader 10 detects whether or not the bar code 4a can be read, and based on this detection signal, the line controller 11 determines the direction in which the cathode ray tube 1 is turned on, that is, whether the cathode ray tube 1 is inverted. For example, the cathode ray tube 1
When the bar code reader 10 can read the bar code 4a, the reversing operation mechanism unit 13 is instructed that there is no reversal, and if the bar code 4a cannot be read, there is reversal.

Here, for example, the bar code 4 on the bar code label 4 attached at a predetermined location of the funnel portion 3 of the cathode ray tube 1 in the sealing step h shown in the manufacturing process schematic of FIG.
Although not described here, a serves the original control function in each process, and at the same time, the cathode ray tube 1 placed on the pallet of the line conveyor 12 and conveyed is still in the placement direction. Then, whether or not the bar code 4a can be read is detected, and when the bar code reader 10 can read the bar code 4a as described above, the reversing operation mechanism unit 13
On the other hand, if there is no reversal and if reading is impossible, it is instructed that there is reversal.

Then, an identification method for detecting the readability of the bar code 4a on the bar code label 4, which is the main object of the present invention, and determining the insertion direction of the cathode ray tube 1 will be described. As shown in FIG. 2, the bar code label 4 having the bar code 4a attached to the funnel portion 3 of the cathode ray tube 1 in the sealing step h shown in FIG. 5 is attached to one side of the funnel portion 3 in the lateral direction. If the bar code reader 10 attached to the curved surface 3a detects that the bar code 4a on the attached bar code label 4 is readable, it is assumed that the cathode ray tube is inserted in the forward direction, that is, not inverted.

Further, as shown in FIG. 3 (a), the bar code label 4 attached in the sealing step h is in the normal direction, but here, in order to facilitate the explanation, FIG. )
As shown in, it is assumed that the cathode ray tube is turned in the opposite direction in the initial state when the cathode graphite tube has flown into the exterior graphite coating step l. In addition, if it is assumed that the cathode ray tube is loaded in the forward direction in the exterior graphite coating step l, the reversing mechanism 13 operates in the exterior graphite coating step l to rotate the cathode ray tube by 180 degrees. The condition is to return to the normal direction.

Under such conditions, the initial state of the cathode ray tube 1 conveyed from the previous step to the exterior graphite coating step 1 by the line conveyor 12 is in the reverse direction as shown in FIG. 3 (b). When it is transported, it becomes necessary to reverse the throwing direction of the cathode ray tube 1 by 180 degrees to make it the positive direction when applying the exterior graphite. At the position in this initial state shown in FIG. 3B, the presence of the bar code label 4 at the position on one side 3a in the lateral direction of the funnel part 3, that is, the scanning light 10a projected by the bar code reader 10, Since the barcode 4a cannot be recognized, as shown in FIG. 3C, the line control unit 11 operates the reversal operation mechanism unit 13 so that the cathode ray tube 1 is turned in the positive direction, so that the cathode ray tube 1 is reversed. To be controlled.

Next, a second embodiment according to the present invention will be described. FIG. 4 is a schematic diagram showing a method of detecting a bar code of a device for identifying the direction of entry of a cathode ray tube. In FIG. 4, 1 is a cathode ray tube, 2 is a panel portion, 3 is a funnel portion, and 4 (4
4) is a bar code label, 4a (44a) is a bar code, 10 (50) is a bar code reader, 10a (50)
a) is a scanning light of a bar code reader, 11 is a line control unit, 12 is a line conveyor, and 13 is a reversing operation mechanism unit.

The difference between the second embodiment and the first embodiment is that two bar code readers are arranged, and the basic operation of the device for identifying the direction of entry of the cathode ray tube is the same, so the details of this operation will be described. The description is omitted. Depending on the type of the cathode ray tube 1, there are cases where two management bar code labels 4 and 44 are attached. This bar code tod label 4, 4
The respective barcodes 4a and 44a described in 4 are
Two bar code readers 10 and 50 arranged at different installation locations are used for reading.

That is, the bar code reader 10 reads the bar code 4a of the bar code label 4, and the other bar code reader 50 reads the bar code 44a of the bar code label 44, so that each bar code 4a, Whether or not 44a can be read is detected. Two
The read enable / disable signal read by each of the bar code readers 10 and 50 is controlled by the line control unit 11 according to specified conditions. In this way, the closing direction of the cathode ray tube 1, that is, the presence or absence of the reversing operation of the cathode ray tube 1 is determined. In the second embodiment, the two bar code readers serve as a double check, which improves the reversal operation accuracy of the cathode ray tube.

[0020]

As described above, according to the cathode ray tube loading direction identifying apparatus of the present invention, the loading direction of the cathode ray tube is automatically detected by detecting the barcode on the bar code label attached to the cathode ray tube. It is possible to determine and attach it to the corresponding equipment or send it to the next process. Therefore, it is not necessary for the line operator to determine the direction in which the cathode ray tube is to be introduced, human error is eliminated, and automation can be performed in more steps.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a cathode ray tube closing direction identifying device according to the present invention.

FIG. 2 is a schematic diagram showing a barcode detection method according to a first embodiment of the present invention.

FIG. 3 is a schematic view showing a cathode ray tube loading direction in a manufacturing process.

FIG. 4 is a schematic diagram showing a barcode detection method according to a second embodiment of the present invention.

FIG. 5 is a schematic view of a manufacturing process of a cathode ray tube.

[Explanation of symbols]

 1 Cathode Ray Tube 2 Panel Part 3 Funnel Part 4,44 Bar Code Label 4a, 44a Bar Code 5 Anode Button 10,50 Bar Code Reader 10a, 50a Scanning Light 11 Line Control Part 12 Line Conveyor 13 Inversion Mechanism Part

Claims (4)

[Claims] 1. A device for identifying a throwing direction of a cathode ray tube, wherein a barcode label having a management barcode is attached to the cathode ray tube, and a barcode reader for reading the barcode and a line for carrying the cathode ray tube. A cathode ray tube loading direction identifying device comprising a conveyor, a reversing operation mechanism unit for reversing the cathode ray tube, and a line control unit for controlling the entire apparatus. 2. The apparatus for identifying the insertion direction of a cathode ray tube according to claim 1, wherein the bar code label is attached to a funnel portion of the cathode ray tube. 3. The cathode ray tube throwing direction identifying device according to claim 1, wherein the bar code reader automatically determines the throwing direction of the cathode ray tube by detecting whether or not the barcode can be read. . 4. The two bar code readers for reading the bar code are arranged at different installation locations, and the bar code readability of two kinds of bar code labels corresponding to each bar code reader is checked. Detect each,
2. The cathode ray tube insertion direction identifying device according to claim 1, wherein the insertion direction of the cathode ray tube is automatically determined when a prescribed condition is met.