JP5251011B2 - Crash device and crash method - Google Patents

Description

  The present invention relates to a crash device and a crash method used in a manufacturing process of an FPD (flat panel display) typified by a liquid crystal display panel to break off end materials of various brittle material substrates such as a glass substrate. .

  In the manufacturing process of a panel substrate used for a flat display body such as a liquid crystal display panel, the liquid crystal panel substrate is divided from the mother substrate at the final stage. At this time, since the liquid crystal panel substrate has a rectangular shape, a large number of elongated end members in two directions parallel to the sides remain. These mills need to be crushed and processed in a short time.

Conventionally, devices disclosed in Patent Documents 1 to 3 are known as devices for breaking waste. The pulverization processing apparatus of Patent Document 1 is an apparatus in which breakage portions made up of a pair of rollers are arranged in three stages up and down, and sequentially cuts waste. Further, Patent Document 2 discloses a crushing apparatus that uses a pair of parallel long rolls to form a spiral intermittent protrusion on the surface thereof and break it finely. Patent Document 3 discloses a crushing device in which three sets of breaking rolls are combined and arranged in parallel, and screw-like crushing teeth are provided on the outer periphery of each roll.
No.55-12921 Patent No. 2550135 Japanese Patent No. 2957544

  However, none of these conventional examples are intended for glass substrates, and there is a drawback in that the end material of the liquid crystal panel cannot be broken finely into a certain size in a short time.

  An object of the present invention is to provide a crash device that is used in a manufacturing process of a brittle material substrate and the like and can easily break an end material such as a brittle material substrate in a short time, and a crash method using the same.

In order to solve this problem, in the crash device of the present invention , a plurality of fracture members are arranged on the outer peripheral surface of the shaft in parallel to the shaft along the longitudinal direction of the shaft and at equiangular intervals in the circumferential direction of the shaft. A pair of formed rotating shafts, a drive unit for rotating the pair of rotating shafts in opposite directions with different rotation phases of the breaking member, and a brittle material substrate perpendicular to the axis of the pair of rotating shafts A pair of rotary shafts, and the pair of rotating shafts are arranged in parallel at a predetermined interval so that the trajectories of the respective breaking members overlap with each other , and the pair of rotating shafts are arranged on their axes. A vertically inward slit is provided at the same position of each breaking member, and is arranged perpendicular to the axis of the rotary shaft at a position corresponding to the slit of the rotary shaft, and the upper part is opened. The division plate having a write portion in which further comprises.

Here, the split plate causes the brittle material substrate dropped on the upper surface of the cut portion to pass through the cut member by passing the pair of rotary shafts through the cut portion so as not to interfere with the pair of rotary shafts. You may make it fracture.

Here, a shutter provided at the carry-in port of the carry-in unit and a detection unit for detecting a brittle material substrate to be carried in are provided outside the shutter, and the detection is performed when the brittle material substrate is detected by the detection unit. You may make it further have an opening-and-closing process part which opens the said shutter only while the made brittle material board | substrate passes.

  According to the present invention having such a feature, the end material of the brittle material substrate can be broken into almost the same size in a short time, and the effect that the end material can be easily processed is obtained.

  FIG. 1 is a perspective view showing an overall configuration of a crash device according to a first embodiment of the present invention, FIG. 2 is a perspective view vertically cut in the longitudinal direction, and FIG. 3 is a sectional view showing an internal structure. The end material carried into the crash device is an end material after a liquid crystal mother substrate is cut by a glass substrate cutting device (not shown) and a single liquid crystal panel substrate is removed. The crash device according to the present embodiment includes an end material in the lateral direction of the paper surface (hereinafter referred to as Y end material) Y1 and Y2 in FIG. 3 and an end material in the direction perpendicular to the paper surface (hereinafter referred to as X end material). It is a crash device that processes X1 and X2. These X end material and Y end material are conveyed by the conveyor 11. The roller 12 drives the conveyor 11, and is rotationally driven in the CW direction by a drive source (not shown). In FIG. 1, the conveyor 11 and the roller 12 are omitted.

  As shown in these drawings, the crash device 20 is covered with an upper panel plate 21, side plates 22 and 23, and left and right covers 24 and 25. The crash device 20 has a first crash unit 30 on the inner upper side and a second crash unit 40 on the lower side. The first crush unit 30 disposed at the upper part is for the Y end material, and the lower second crush unit 40 is the crush unit for the X end material. As shown in FIG. 3, pinch rollers 31 and 32 for guiding the Y end material conveyed by the conveyor 11 to the rotating shaft are arranged in the upper crash unit 30 at regular intervals. The pinch rollers 31 and 32 are arranged so as to be parallel to the X axis at an interval substantially equal to the thickness of the substrate to be crushed. The pinch rollers 31 and 32 are driven in opposite directions to constitute a carry-in section for carrying the glass edge material into the rotary shaft.

  And on this same horizontal plane, as shown in FIG. 3, a pair of rotating shafts 34 and 35 are arranged in parallel with the X axis at regular intervals in the vertical direction. The rotating shafts 34 and 35 have the same structure, and FIG. 4 is an enlarged perspective view of the rotating shaft 34. The rotating shafts 34 and 35 are configured to be sequentially broken by sandwiching the substrate between the breaking members by two breaking members attached to one rotating shaft and the breaking member of the other rotating shaft existing between them. As shown in FIG. 4, a plurality of, for example, six rectangular breaking members 36 are formed in the radial direction at an angle of 60 ° in parallel with the rotation shaft 34 along the axial direction of the shaft. A similar breaking member 37 is also provided on the rotating shaft 35. The rotating shafts 34 and 35 rotate in opposite directions, but the outermost tracks of the breaking members 36 and 37 overlap each other by a fixed length, for example, 15 mm in FIG. Rotate in the reverse direction at high speed. A shooter 38 for guiding the crushed glass pieces is provided below the rotating shaft 35.

  Next, the second crush unit 40 for the X end material will be described. Similarly to the crash unit 30 described above, the crash unit 40 includes a pair of rotating shafts 41 and 42 that are horizontally opposed to each other in parallel with the X axis and spaced apart from each other. The rotary shafts 41 and 42 are driven at the same rotational speed in opposite directions with a 30 ° phase shift.

  Since both the rotating shafts 41 and 42 have the same structure, the rotating shaft 41 will be described with reference to FIG. As shown in FIG. 5, the rotating shaft 41 has six breaking members 43 at equal angles in the radial direction in parallel to the rotating shaft 34. In addition, each breaking member 43 is provided with a plurality of, for example, 16 slits 44 that are inwardly perpendicular to the axis at predetermined intervals, for example, 100 mm intervals. The rotating shaft 42 is also provided with the same breaking member 45 and slit 46.

  As shown in an enlarged view in FIG. 6, the crash unit 40 for X end material is provided with the same number of slits 44, here 16 divided plates 51, perpendicular to the axis of the rotating shafts 41, 42. It is done. As shown in FIG. 6, the dividing plate 51 is symmetrical, and a rectangular cut 52 is formed from the upper part toward the lower center, and semicircular cuts 53 are formed on the side surfaces at positions facing each other. Is done. A chevron-shaped protrusion 54 is formed at the center lower portion of the notch 52. The divided plate 51 is disposed perpendicular to the axis of the rotary shafts 41 and 42 and at the positions of the slits 44 and 46 of the breaking members 43 and 45. And it arrange | positions so that the two rotating shafts 41 and 42 may penetrate the notch 53 in the notch 52 of the division | segmentation plate 51. As shown in FIG. With such an arrangement, the rotating shafts 41 and 42 rotate without being obstructed by the dividing plate 51. Then, during the rotation, the elongated end member parallel to the axis of the rotation shafts 41 and 42 on the slope of the mountain-shaped protrusion 54 is divided by the breaking member. A recovery box 61 for broken pieces is provided at the bottom of the crash device.

  As shown in FIGS. 3 and 7A, the drive unit 70 is provided with a motor 71, and a reduction mechanism is attached to the motor 71. The driving force of the motor 71 is transmitted to the pulley 74 and the rotating shaft 41 via the pulley 72 and the belt 73. The power transmission gears 75 and 76 transmit the rotational force of the pulley 74 to the rotary shaft 42, and the rotary shafts 41 and 42 are driven in the opposite directions at a constant speed. Similarly, a pulley 77 is provided on the shaft of the rotary shaft 41, and a pulley 79 is connected via a timing belt 78 as shown in FIG. 7B. The pulley 79 is connected to the rotary shaft 35 and transmits a rotational force to the rotary shaft 34 via the power transmission gear 80 and the power transmission gear 81 at the other end. As a result, the rotary shafts 34 and 35 are driven at equal speeds in opposite directions.

  Next, the operation of this embodiment will be described. The roller 12 is rotated to bring the conveyor 11 into the conveying state, and at the same time, the motor 71 is rotated. When the glass substrate cutting device is driven here, Y end materials Y1, Y2 and X end materials X1, X2 are mixed on the conveyor 11 and carried into the crash device. The Y end materials Y1 and Y2 are conveyed on the conveyor 11 with the Y-axis direction as the longitudinal direction, pass between the pinch rollers 31 and 32 of the crush unit 30, and are added to the rotating shafts 34 and 35. And since the fracture | rupture member of either of the rotating shafts 34 and 35 contacts and presses the end material Y1 in three lines, an end material can be broken. As a result, the Y end material can be broken into substantially constant shapes and sizes to form broken pieces. The broken Y end piece is guided to the crash unit 40 by the shooter 38.

  The X end materials X1 and X2 enter the shooter 38 through the gap between the conveyor 11 and the pinch roller 32, and are added to the X end material rotating shafts 41 and 42. In this case, the X end material that has passed through the breaking members of the pair of rotating shafts 41 and 42 falls onto the chevron 54 on the upper portion of the split plate 51 as shown in FIG. It is pressed by one of the breaking members 43 and 44 to be broken. In this way, the X end material can also be broken into pieces having substantially the same shape and size. These broken pieces are collected in a collection box 61.

  In this embodiment, the X end material and the Y end material are separated according to the direction and are broken by the respective crash units. For this reason, the rotating shaft can be rotated at high speed, and the X end material and the Y end material can be processed in a short time.

  In the first embodiment, the crash unit 30 for the Y end material and the crash unit 40 for the X end material are shown separately in the upper and lower directions, but one of the crash units may be used depending on the shape of the end material. Needless to say, it may be only. In the above-described embodiment, the broken piece after being broken by the Y-end material crash unit is also added to the X-end piece crash unit at the same time, but the broken piece broken by the Y-end piece crash unit is recovered as it is. Needless to say, it may be guided to the box 61.

  Next, a crash device according to a second embodiment of the present invention will be described. In the second embodiment, in addition to the above-described problems, adverse effects on the environment due to the generation of noise and dust when the crash device is operated are prevented. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In this embodiment, as shown in FIG. 8, an opening / closing processing unit 90 is provided at the carry-in portion of the glass edge material that is conveyed by the conveyor 11 and the rollers 12 and introduced into the crash device 20A. The crash device 20A is the same as the crash device 20 described above except that the opening / closing processor 90 is provided at the carry-in entrance. The opening / closing processing unit 90 is disposed between the shutter 91 provided at the entrance of the glass edge material of the crash device 20A, the shutter and the roller 12, and a transmissive photoelectric sensor 92 for detecting the glass edge material passing between them. And a controller 93. In this embodiment, the photoelectric sensor 92 is a detection unit for detecting the end material guided from the end of the roller 12 to the crash device 20A, and includes a light projecting unit 92a and a light receiving unit 92b. The output of the photoelectric sensor 92 is given to the controller 93. The controller 93 normally closes the shutter 91 and opens the shutter 91 provided on the front surface of the crash device 20A based on a switch signal from the photoelectric sensor 92. That is, when the light incident on the normal light receiving unit 92b from the light projecting unit 92a of the photoelectric sensor 92 is blocked by the passage of the end material, the shutter 91 is opened as the end material is carried into the crash device 20A, and the end material is opened. If no more is detected, the shutter 91 is closed after a predetermined delay time until the end material reaches the crash device 20A. As a result, it is possible to reduce environmental deterioration due to noise and dust generated during the breaking process. Here, the passage of the end material is detected using a photoelectric sensor, but a proximity sensor, a limit switch, and other sensors may be used as the detection unit.

  In the first and second embodiments described above, the X end material and the Y end material are mixed and conveyed on the conveyor, but the X end material and the Y end material are separated in advance, You may make it provide the crash device for materials, and the crash device for Y end materials. In this case, by providing an opening / closing processing unit in each crash device, the time during which the shutter is closed can be lengthened, and environmental degradation can be prevented.

  Also, since the Y end material takes a long time to pass through the shutter, after the X end material and the Y end material are separated, the Y end material is rotated by 90 ° using the rotor to make the X end material. You may make it throw into a crash device in a state. In this case, only the crash unit for the X end material is required. In this case, the shutter opening time can be shortened, and environmental deterioration due to noise and dust can be greatly reduced.

  Further, in the embodiment described above, the breakage of the cut off X end material and the Y end material has been described, but the present invention is the end material after cutting out a liquid crystal panel plate such as a circle or a fan shape from the mother substrate, and the shape is long. In this case, of course, the present invention can also be applied to an end material having a substantially square shape in which the lengths of the two sides are not so different and having a shape near the center.

  Furthermore, in each embodiment mentioned above, although the crush device which processes the glass end material cut | disconnected with the glass substrate cutting device is demonstrated, this invention is limited to the case where it is used in the back | latter stage of such a glass substrate cutting device. Needless to say, it can be used as a crushing device for processing a scrap material alone. Also in that case, a single substrate or a bonded substrate, or a panel substrate in which different types of brittle material substrates are bonded, such as a glass substrate and a semiconductor wafer, except when the same type of brittle material substrate is bonded. It is also possible to effectively use it for the breakage processing of the panel edge material generated in the manufacturing process of the projector display substrate bonded together.

  The present invention is used in an FPD manufacturing process typified by a liquid crystal display panel, and can cut an end material of a brittle material substrate into a substantially constant size in a short time. Therefore, it is useful in the final process of manufacturing the liquid crystal panel substrate. In addition, for the end material discharged in the process of manufacturing various display panels, light emitting elements, etc. using a brittle material substrate, the rotation is the equipment configuration of the crash unit as appropriate according to their various shapes and sizes. This can be done by changing the specifications of the shaft and fractured member. Furthermore, in addition to the above-described bonded substrate, a single substrate called a single plate can also be a target for fracture processing.

The perspective view which shows the whole structure of the crash device by the 1st Embodiment of this invention. The perspective view which shows the longitudinal cross-section of the crash apparatus of this Embodiment. Sectional drawing which shows the internal structure of the crash device of this Embodiment. The perspective view of the rotating shaft 33 of this Embodiment. The perspective view of the rotating shaft 41 of this Embodiment. The figure which shows the division | segmentation plate part of the crash unit 40 of this Embodiment. The figure which shows transmission of the motive power of this Embodiment. The figure which shows transmission of the motive power of this Embodiment. Schematic which shows the whole structure of the crash device by the 2nd Embodiment of this invention.

Explanation of symbols

11 Belt conveyor 12 Roller 20, 20A Crash device 21 Top plate 22, 23 Side plate 30 First crash unit 31, 32 Pinch roller 34, 35, 41, 42 Rotating shaft 36, 37, 43, 45 Breaking member 40 Second Crash unit 44, 46 Slit 51 Dividing plate 52 Notch 53 Notch 54 Protrusion 61 Collection box 90 Opening / closing processing part 91 Shutter 92 Photoelectric sensor 93 Controller

Claims (3)

A pair of rotating shafts having a plurality of breaking members formed on the outer peripheral surface of the shaft in parallel to the shaft along the longitudinal direction of the shaft and at equal angular intervals in the circumferential direction of the shaft;
A drive unit that drives the pair of rotating shafts to rotate in opposite directions with different rotation phases of the breaking member;
A carry-in section for carrying a brittle material substrate in a direction perpendicular to the axis of the pair of rotating shafts,
The pair of rotating shafts are arranged in parallel at a predetermined interval so that the trajectories of the respective breaking members overlap each other ,
The pair of rotating shafts are provided with slits facing inwardly perpendicular to the axis at the same position of each breaking member,
The crash device further comprising a dividing plate that is disposed perpendicularly to the axis of the rotary shaft at a position corresponding to the slit of the rotary shaft and has a notch that is open at the top . The dividing plate, by passing the said pair of rotary shafts in said notches so as not to interfere with the pair of rotating shafts, breaking the brittle material substrate that has fallen on the upper surface of the cutout portion in the rupture member The crash device according to claim 1. A shutter provided at the carry-in entrance of the carry-in unit and a detection unit for detecting a brittle material substrate to be carried in are provided outside the shutter, and are detected when the brittle material substrate is detected by the detection unit. The crash device according to claim 1, further comprising an opening / closing processing unit that opens the shutter only while the brittle material substrate passes.

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