KR100400508B1 - Inspection device for glass tube glass - Google Patents

Abstract

A first inspection section for inspecting a glass article conveyed in the middle of the conveyor, an inverting device for inverting the glass article after the first inspection in the first inspection section, The first inspection unit for inspecting the unexamined portion in the inspection unit is continuously installed, and the glassware to be inspected is automatically carried in and out, and the glassware in each inspection unit is maintained in an easy-to-inspect state.

Description

Inspection device for glass tube glass

The present invention relates to an inspection apparatus for a glass article for a brown tube. More particularly, the present invention relates to a glass tube for inspecting defects such as damage, concavity and defective transmission characteristics on a face, a side, and a surface, an inner surface, and an inside (in the thickness direction) of a glass panel or a panel of a cathode- To an inspection apparatus for an article.

In order to judge whether or not the glass panel and the panel for Brownian tube are suitable for use after manufacture, defects such as the surface of the face, the side surface, the surface of the seal edge, Is inspected.

The inspection of the conventional glass panel 60 for the brown tube shown in Fig. 9 has been carried out as follows. First, the worker at the inspection position lifts the glass panel 60 on the conveyor by hand and carries it on the inspection table 65 shown in Fig.

Next, the glass panel 60 is irradiated with the lamp 66 provided on the inspection table and visual inspection is performed. (A) shows the face-side penetration inspection, (B) shows the face-side reflection inspection, (C) shows the reflection at the seal edge, At this time, the glass panel 60 is held by hand and the position E of the eye is changed as shown in Figs. 10A to 10C, or the glass panel is reversed to change the position, angle and attitude, Defects such as damage to the inner surface and the inside of the seal edge 60a, face surface 60b and side surface 60c of the glass panel 60, concave and poor transmissivity are detected while viewing the reflected light with the naked eye.

As described above, conventionally, the glass panel 60 is carried into and taken out from the inspection table 65 in the inspection by hand of the worker. Also, during inspection, it is difficult to change or move quickly because the glass panel 60 is held or reversed, or its position, angle, and posture are changed. Therefore, the burden is increased and the detection rate is lowered. Resulting in increased costs. Particularly, in the case where the glass panel 60 is large, since the weight is increased, it is not easy to hold it with human hands and is not efficient.

Three kinds of inspections of (a) the face side, the side face and the seal edge of the glass panel 60, (b) the inside face and (c) the insides of the glass panel 60 are performed because they are conventionally performed at one position. If you do it efficiently with three positions, you have to install each test device at each position.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the drawbacks of the prior art described above, and it is an object of the present invention to automatically carry out loading and unloading of a glass article into and out of a testing section and quickly change the posture of the glass article to be inspected, It is an object of the present invention to provide an inspection apparatus and an inspection apparatus for a glass article for a brown pipe which can be inspected without feeling the weight of the glass article even in the case of a super large-sized glass article.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic top view of an embodiment of an inspection apparatus for a glass article for a brown tube according to the present invention. FIG.

Fig. 2 is a side schematic view of the conveying state of various postures of various glass articles. Fig.

3 is a side cross-sectional view of the first inspection unit;

4 is a partial enlarged view of the mechanism of the shielding plate;

Fig. 5 is a top view of the first inspection unit in which the shield plate is removed; Fig.

6 is an explanatory view showing the reversing device ((A) is a top view, (B) is a front view, and (C) is a side view).

7 is a side sectional view of the second inspection unit;

8 is a side view of the inverted conveyor.

Fig. 9 is a partial cross-sectional view of a panel glass (glass article) for a brown tube.

10 is an explanatory view showing a conventional inspection state.

[Description of Reference Numerals]

1, 4, 10, 11, 14: Conveyor 2: Glass article

3: branching part 5: first inspection part

6: inverting device 7: second inspection section

8: inverted conveyor 9: inverting device

12: a packing section (packing section) 13: a robot arm for discharging a defective article

20: support member 22: base

25: Shield plate

42: Electric tilting support mechanism

43: vacuum chuck 44: support plate

45: support disc 46: free joint

47: load 48: spring

49: support disk 50: upper cylinder

52: Lower cylinder

In order to achieve the above object, the present invention provides a glass article inspection apparatus comprising: a conveyor for conveying a glass article; a first inspection section for inspecting a glass article conveyed in the middle of the conveyor; And a second inspection unit for inspecting a portion of the inverted glass article that has not been inspected by the first inspection unit.

In a preferred aspect of the present invention, an inverting conveyor for conveying the inverted glass article is provided on the downstream side of the second inspecting section, an inverting device for returning the inverted glass article to the original posture, And a conveyor for conveying the glass article.

One of the inspection apparatuses according to the present invention comprises a tiltable support member for appropriately changing the glass article to be inspected in an inclined state, a lower lamp (light source) provided on the lower side of the glass article held on the support member, Shielding plate for blocking the irradiation of the lower lamp when inspecting the upper lamp by irradiation of the upper lamp.

Another preferred embodiment of the inspection apparatus according to the present invention is characterized in that it comprises a vacuum chuck for holding and holding a glass article to be inspected, a free joint for enabling the tilting of the support plate for supporting the vacuum chuck to change the posture of the glass article, An electric tilting support mechanism comprising a spring for returning the article to a horizontal state and a cylinder for raising and lowering the electric tilting support mechanism for changing the height of the glass article.

The present invention relates to an image forming apparatus comprising a conveyor for conveying a glass article, a first inspection section for inspecting the glass article, an inverting device for inverting the glass article, and a second inspection section for inspecting the inverted glass article, And the glass article to be inspected is automatically brought into and out of the first inspection section and the second inspection section and the seal edge of the glass article, the surface of the glass article, the surface of the glass article, the surface of the glass article, Defects such as defects can be efficiently inspected.

The present invention is characterized in that it comprises a reversing conveyor for conveying the inverted glass article to the downstream side of the second inspecting section, another reversing device for returning the inverted glass article to its original posture, a conveyor for conveying the glass article returned to the original posture The glass article inspected by the second inspection section is automatically reversed in the reversing device, returned to the original posture, and conveyed to the conveyor.

Further, since the first inspection portion of the present invention holds the glass article to be inspected as a tiltable support material, even a glass article having a large weight can be quickly changed to a desired posture suitable for inspection, so that inspection can be performed efficiently In addition, the reduction of the worker can be expected.

Further, when the glass article is inspected by irradiation of the upper lamp, the irradiation of the lower lamp is shielded by the shielding plate, and the glass article can be placed in an easy condition for inspection by avoiding interference of light by the lower lamp. The inspection accuracy can be improved.

In the second inspection portion of the present invention, the glass article to be inspected is reliably attracted to and held by a vacuum chuck, and the posture and the height of the glass article are adjusted by a free joint for enabling the support plate for supporting the vacuum chuck to be driven and tilted. Since the electric tilting support mechanism that equips the spring for returning the glass article to the horizontal state and the cylinder which raises and lowers the electric tilting support mechanism are used, even if the glass panel is in a large inverted state, for example, It is possible to improve the inspection efficiency.

Example

1 is a schematic view of the entire inspection apparatus of an inspection apparatus of a glass article (panel glass) for a brown pipe according to the present invention.

This inspection apparatus comprises a conveyor 1 for conveying the glass article 2, a branching section 3 for branching the conveyor 1 to the conveyor 4 of the A line system and the conveyor 4 of the B line system, A first inspection section 5 for inspecting the glass article 2 installed in the middle of each conveyor 4 branched at the branching section 3, an inverting device 6 for inverting the glass article 2, A second inspection section 7 for inspecting the glass article 2, an inverting conveyor 8 for conveying the inverted glass article 2 after completion of the inspection, and a reversing conveyor 8 for returning the glass article 2 to the original posture A conveyor 10 for conveying the glass article 2 returned to the original posture and a conveyor 10 for conveying the good article and the defective article in the inspection of the first inspection section 5 and the second inspection section 7, A conveyor 11 for conveying the good glass article 2 distinguished as the glass article 2 to the envelope 12 and a conveyor 11 for conveying the glass article 2 of the defective article, And a robot arm 13 for transferring from the defective product discharge conveyor 10 to the conveyor 14.

The conveyor 1 is constituted by a roller conveyor and has a seal edge 60a of a glass panel 60 (glass article 2) for a brown tube as a lower surface, (61), and is conveyed to the branching section (3).

Since this inspection apparatus is composed of two inspection systems, that is, the A line and the B line, the branching section 3 separates the glass article 2 being conveyed from the A line system conveyor 4 and the B line system conveyor 4).

The conveyor 4 of the A line system and the conveyor 4 of the B line system perform substantially the same operations and each conveyor 4 is constituted by a roller conveyor in the same manner as the conveyor 1. Each of the first inspection portions 5 for inspecting the glass article 2 in the downward state, that is, the sealing edge downward, is provided at the middle of each conveyor 4 in the system of these A-lines.

Figs. 3 to 5 show the first checking unit 5. Fig. The first inspection unit 5 includes a tiltable support member 20 for supporting the glass article 2 to be inspected so as to change its posture and a tiltable support member 20 for supporting the glass article A lower lamp 17 formed of a fluorescent tube for irradiating the glass article 2 provided on the lower side of the glass article 2 and a lower lamp 17 formed of a fluorescent tube for irradiating the glass article 2 And a shielding plate 25 for blocking the irradiation of the lower lamp 17 when the lamp is inspected by the irradiation of the lamp have.

3, the tiltable support member 20 is rotatably supported by a shaft (X axis) 19 provided in a column 21 fixed to the base 22, The shaft (X axis) 19 is rotated in the direction of the arrow D as a rotational axis by driving the cylinder 23 provided between the ashes 20 and the cylinder 23 provided in the up and down direction Thereby supporting the article 2 at a desired angle.

The supporting member 20 has an inclination angle of about 30 degrees before and after the supporting member 20. The supporting member 20 can rotate the entire base 22 about the Y axis perpendicular to the X axis, It may be possible to rotate around a vertical Z-axis.

The mechanism of the shielding plate 25 includes a cylinder 26 fixed to the frame 16 as shown in Fig. 4, a link arm 27 fixed to the rod of the cylinder 26, a link arm 27 And a shield plate 25 rotatably attached to the link 29 via an axis 30. The link 29 is attached to the link 29 via a shaft 28 so as to be rotatable.

When the link arm 27 is pushed in the direction of the arrow E by driving of the cylinder 26, the shielding plate 25 is made of a light absorbing material having a dark surface (a material which does not reflect) Is rotated in the direction of the arrow F with the shaft 28 as a rotational axis to open the shield plate 25 vertically as shown by the arrow G. [ Although the shielding plate 25 is of a mechanical shutter type, it may be of an electrical type using a liquid crystal shutter.

The inspection of the glass article 2 by the lower lamp 17 is carried out by opening the shielding plate 25 and exposing the lower lamp 17 between the small rollers 15 on both sides, . Thereby, the face surface transmission property inspection of the glass panel is performed. At this time, since the glass panel is mounted on the supporting member 20, it is not necessary for the inspector to support the weight of the glass article 2.

When the glass article 2 is inspected by the upper lamp (face surface reflection inspection), the cylinder 26 of FIG. 4 is driven to return the link arm 27 in the direction opposite to the direction of the arrow E, The plate 25 is closed to cover the lower lamp 17 and the interference of the light by the lower lamp 17 is blocked. This is because the reflected light from the upper lamp is hard to be seen by the white lamp even when the lower lamp 17 is turned off, for example, when the face lamp reflection property inspection of the glass article 2 is performed in the upper lamp.

Fig. 6 shows a reversing device 6 for reversing the glass article 2 which has been inspected by the first inspection section 5. Fig. The reversing device 6 includes a platform 40 for lifting and lowering the glass article 2 transported by the conveyor 4 by driving the cylinder 41 fixed to the base 22, A slider 32 slidably mounted on a guide rail 31 provided on the slider 32 and a support plate 36 attached to a cylinder 34 fixed to the slider 32 and vertically moved by the drive, And a vacuum chuck 39 attached to an inverting plate 38 provided below the inside of the support plate 36. The vacuum chuck 39 is mounted on the reverse side of the support plate 36,

The lifting table 40 is driven by the cylinder 41 of the reversing device 6 so that the glass articles 2 on the conveyor 4 are lifted and the inner side of each supporting plate 36 supported by the upper side slider 32 (FIG. 6 (B)). Then, the reversing plate 38 is driven to rotate by the reversing drive belt 37 (FIG. 6 (C)), So that the rail edge 60a of the rail 2 is turned to the upper surface. The width between both the support plates 36 can be changed by a cylinder provided between the support plates 36 in accordance with the dimension of the glass article 2. The cylinder 33 attached to the slider 32 is driven to move the slider 32 along the guide rail 31 and convey the glass article 2 to the second inspection section 7. [

Fig. 7 shows a second inspection section for inspecting the inverted glass article 2.

The second inspection section 7 includes an electric tilting support mechanism 42 for vacuum-adsorbing the inverted glass article 2 to be inspected, electrically and tilting the tilted glass article 2 to a desired inspection posture, An upper cylinder 50 for vertically moving the glass article by raising and lowering the attracted electric tilting support mechanism 42 and a lower cylinder 52 for raising and lowering the base 51 of the upper cylinder 50. [ The second inspection section 7 is provided with a traverser 53 for transporting the inverted glass article 2 after inspection to be movable in the vertical direction.

The electric tilting support mechanism 42 includes a support plate 44 for supporting a glass article 2 to be inspected, a vacuum chuck 43 for chucking the supported glass article 2, a vacuum chuck 43 Which is provided between the supporting base plate 45 and the other supporting base plate 49 so as to be capable of rolling and tilting the glass article 2 in the directions of arrows M and J, A joint 46 and a rod 47 to which an elastic force of a spring 48 for returning the glass article 2 to a horizontal state is applied. The rods 47 to which the elastic force of the springs 48 are applied are provided at three positions at intervals of 120 degrees with respect to the supporting disk 49. These rods 47 may be provided at four positions at intervals of 90 degrees.

The traverser 53 is installed on the left and right support members 54 fixed to the base 22 through guide rails and guides the glass article 2 to the inverting device 9 adjacent to the second inspection position (See Fig. 1). That is, the reversal conveyor 8 of FIG. 1 includes the traverser 53.

The upper cylinder 50 for raising and lowering the electric tilting support mechanism 42 in the direction of the arrow K is supported on the base 51 and the lower cylinder 52 Is fixed on the base 22 on the floor surface.

The inspection in the second inspection section 7 is performed by setting the glass article 2 conveyed in the inverted state on the electric tilting support mechanism 42. [ At this time, the lower cylinder 52 and the upper cylinder 50 are simultaneously elevated to receive the inverted glass article 2 conveyed through the reversing device 6 (Figs. 1 and 6) 42 to be adsorbed by the vacuum chuck 43 so as not to slip off when it is tilted.

Next, the upper cylinder 50 is lowered to set the height as the inspection position. In other words, it is lowered to the position where the worker is easy to see. Since the free joint 46 is provided between the supporting plate 45 supporting the glass article 2 and the other supporting plate 49, And it is also possible to rotate around the Z-axis. A rod 47 to which an elastic force of a spring 48 is applied is provided between the supporting base plate 45 and the other supporting base plate 49. The elastic force of the spring 48 allows the glass article 2 And return to the horizontal state.

Although not shown, a lamp for irradiating a glass article is provided on the upper and side portions of the glass article 2 to be inspected. The worker irradiates the light of the lamp while tilting or rotating the glass article 2 by hand at the inspection position and examines each part by looking at the reflected light of the inner surface and the sealed edge of the glass article 2 and the transmission amount of the side surface . When the hand is released, the glass article 2 returns horizontally by the elastic force of the spring 48.

At the time of this inspection, the worker does not support the weight of the glass article 2, but merely changes the angle, posture, rotation position, etc. to a light force in the same manner as in the inspection by the first inspection section 5 . When the inspection is completed, the lower cylinder 52 is also lowered. Thereby, the glass article 2 is lowered (arrow P in FIG. 8) and is received by the traverser 53.

8 shows an inverted conveyor 8 for conveying the glass article 2 in the inverted state. The inversion conveyor 8 conveys the traverser 53 along the guide rail 57 and includes a nut 56 attached to the traverser 53 and a ball screw 56 for rotating the nut 56 55, and a guide rail 57.

The glass article 2 inverted by the inverting conveyor 8 is supported by traversers 53 and 62 as shown in Fig.2B and the traverser 53 is guided by the guide rail 57, In the direction of the arrow Q, and is conveyed to another reversing device 9. [ The reversing device 9 is the same as the reversing device 6 and returns the reversed glass article 2 to the original posture so as to downward the seal edge in this device and conveys it to the conveyor 10.

The glass article 2 is distinguished from the good and the bad in the first inspection section 5 and the second inspection section 7 and the good glass article 2 is transferred from the conveyor 10 to the conveyor 11, 12 (Fig. 1). The defective glass article 2 is transferred from the conveyor 10 to the conveyor 14 by the robot arm 13 for discharging the defective article and is conveyed to a predetermined place. Thus, the inspection of the glass article 2 is completed.

In the above embodiment, the panel glass 60 for the brown tube is inspected by using the inspection apparatus for a glass article for a brown tube according to the present invention. However, the same can be also checked for a panel glass of a cathode ray tube. In this case, the seal edge 70a of the panel glass 70 is conveyed to the roller 61 downward as shown in FIG. 2 (C). In this state, the panel glass 70 is conveyed to the first Is inspected by the inspection section 5 and then the seal edge 70a of the panel glass 70 is turned up so as to be detected by the second detection section 7 as shown in Fig. After that, the operation returns to the original posture in the same manner as in the above embodiment, and the inspection is completed.

As described above, according to the present invention, a glass article is automatically brought into and taken out from a inspection table at the time of inspection, and the glass article is automatically detected by manipulating the hand to tilt or rotate the article with light force without having to hold the glass article It is possible to achieve a desired attitude simply and quickly. Therefore, even when a large glass article is inspected, the glass article can be easily changed to a desired posture without increasing the weight, and detection efficiency can be improved, and the efficiency of inspection can be improved by reducing the worker And costs are reduced.

Claims (2)

A first inspection section for inspecting a glass article installed in the middle of the conveyor, an inverting device for inverting the glass article, and a second inspection section for inspecting the inverted glass article, The first inspection unit includes a tilting support member for tilting the glass article to be inspected, a lower lamp provided on the lower side of the glass article to irradiate the glass article, And a shielding plate covering the lower lamp when the inspection is performed, The second inspection unit includes an electric tilting support mechanism composed of a vacuum chuck for picking up a glass article to be inspected, a free joint for allowing the support disk for supporting the vacuum chuck to be able to be tilted and tilted, and a spring for returning the glass article to a horizontal state And a cylinder for raising and lowering the electric tilting support mechanism. The apparatus according to claim 1, wherein an inverted conveyor for conveying the inverted glass article is provided downstream of the second inspection unit, And an inverting device for returning the inverted glass article to its original posture, And a conveyor for conveying the glass article returned to the original posture.