KR20080104953A - Crushing device and crushing method - Google Patents

Abstract

A crushing apparatus is provided to easily cut edge materials of brittle material substrates and the like into an approximately constant shape within a short time, and a crushing method using the same is provided. A crushing apparatus comprises: a pair of crush gears(34,35,51,52) of which teeth are formed in a helical shape along a rotary shaft, and which are disposed to be parallel to each other at predetermined spaced intervals; a drive part(70) rotationally driving a pair of the crush gears to the same speed oppositely to each other; and a carry-in part carrying in an edge material of a brittle material substrate in a direction perpendicular to shafts of the crush gears, wherein the teeth of the crush gears have grooves formed on ridges thereof at predetermined intervals.

Description

Crush Device and Crush Method {CRUSHING DEVICE AND CRUSHING METHOD}

The present invention is used in the manufacturing process of a flat panel display (FPD) represented by a liquid crystal display panel, and the like, and a crush device and a crush for breaking a single material of various brittle material substrates such as a glass substrate. It is about a method.

In the manufacturing process of the panel substrate used for flat display bodies, such as a liquid crystal display panel, a liquid crystal panel board | substrate is cut out and cut out from a mother board in a final step. At this time, since a liquid crystal panel board | substrate has a rectangular shape, many thin strip | bridging materials remain. Such cuttings need to be broken and processed in a short time.

Conventionally, the apparatus of patent documents 1-3 is known as an apparatus which breaks waste. The grinding | pulverization processing apparatus of patent document 1 is a device which cuts waste in order by being thinly arranged in three steps of the broken part which consists of a pair of rollers. In addition, Patent Document 2 discloses a crushing apparatus in which a pair of rolls parallel and horizontally long are formed to form a spiral intermittent protrusion on the surface thereof so as to break finely. Patent Document 3 also discloses a shredding device in which three sets of breaking rolls are combined and arranged in parallel, and a screw-shaped shredding gear is provided on the outer circumference of the roll.

Patent Document 1 Japanese Utility Model Utility Room 55-12921

Patent Document 2 Japanese Patent No. 2550135

Patent Document 3 Japanese Patent No. 2957544

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

SUMMARY OF THE INVENTION An object of the present invention is to provide a crushing apparatus and a crushing method using the same, which are used in a manufacturing process of a brittle material substrate and the like, and which can cut end materials such as a brittle material substrate into a substantially constant shape easily in a short time.

In order to solve this problem, the crush device of the present invention includes a pair of crush gears in which the teeth are formed in a helical shape along a rotational axis and arranged in parallel at regular intervals, and the pair of crush gears are opposite to each other in the opposite direction. And a driving unit for rotationally driving at a speed, and a carrying-in unit for carrying in the end piece of the brittle material substrate in a direction perpendicular to the axis of the crush gear, wherein the teeth of the crush gear have grooves formed at regular intervals on the ridge line.

In order to solve the above problems, the crush device of the present invention, the tooth is formed in a helical shape along the axis of rotation and arranged in parallel at regular intervals, the first crush unit having a pair of first crush gear, the tooth is A second crush unit having a helical shape along the rotation axis and arranged in parallel at regular intervals, the second crush unit having a pair of second crush gears, and each pair of crush gears of the first crush unit being driven backwards; In addition, a drive unit for driving each pair of crush gears of the second crush unit in a reverse direction to each other, the teeth of each crush gear is formed with grooves at regular intervals on the ridge line.

Here, you may further provide the some support gear arrange | positioned along the longitudinal direction of each said crush gear, and meshing with each said crush gear.

The grooves formed on the ridge lines in the teeth of the crush gears may be V-shaped grooves.

The grooves formed on the ridge lines in the teeth of the crush gears may be arranged at regular pitch intervals on a line parallel to the axis.

Here, the grooves formed on the ridge lines in the teeth of the crush gears may be arranged at regular pitch intervals on a line parallel to the axis thereof, and may be arranged at a half pitch shift for each line.

Here, the second crush unit may be disposed below the first crush unit.

Here, the crusher is provided with a shutter provided at the inlet of the end of the brittle material substrate and a detector for sensing the end of the brittle material substrate carried into the crusher just before the shutter, and by the sensing unit When the cutting material is detected, the opening and closing processing unit may be further provided to open the shutter only while the cutting material of the detected brittle material substrate passes.

In addition, in order to solve the above problems, in the crush method of the present invention, a pair of teeth is formed in a helical shape along the rotation axis, the teeth are grooves are formed at regular intervals on the ridge line, a pair arranged in parallel at regular intervals The crush gears are rotated at the same speed in opposite directions to each other, and the cut pieces of the brittle material substrate are broken by carrying in the cut pieces of the brittle material substrate in a direction perpendicular to the axis of the crush gears.

Here, the shutter provided at the inlet of the end of the brittle material substrate in the crusher may be opened only while the end of the brittle material substrate passes through.

  According to the present invention having such a feature, the end material of the brittle material substrate can be broken at about the same size in a short time, and the effect of facilitating the processing of the end material is obtained.

EXAMPLE

1 is a perspective view showing the overall configuration of a crush device according to a first embodiment of the present invention, FIG. 2 is a perspective view terminated at its center, and FIG. 3 is a sectional view showing an internal structure. The cutting material carried into this crusher is the cutting material which remains after the mother board | substrate of a liquid crystal display panel is cut | disconnected by the glass substrate cutting device which is not shown in figure, and an individual liquid crystal panel board | substrate is removed. In the crushing apparatus according to the present embodiment, in the transverse direction of the ground in Fig. 3 (hereinafter referred to as Y-edge), Y1, Y2, and a cut in the direction perpendicular to the ground (hereinafter referred to as X-edge) It is a crush device that processes X1 and X2. These X cutting materials and Y cutting materials are conveyed by the conveyor 11. The roller 12 drives the conveyor 11, and is rotationally driven in the CW direction (clockwise) by a drive source not shown in the drawing. In Fig. 1, the conveyor 11 and the roller 12 are omitted.

As shown in these figures, the crush device 20 is covered by the upper panel plates 21, the side plates 22, 23, and the covers 24 and 25 on the left and right. The crush device 20 includes a first crush unit 30 at an inner upper portion and a second crush unit 50 at a lower portion thereof. The first crush unit 30 disposed at the upper portion is for the Y-cutting material, and the lower second crush unit 50 is the crush unit for the X-cutting material. In the upper crush unit 30, pinch rollers 31 and 32 for guiding the Y end material conveyed by the conveyor 11 to the crush gear are arranged at regular intervals as shown in FIG. The pinch rollers 31 and 32 are arranged so as to be parallel to the X axis at a distance substantially equal to the thickness of the broken glass. The pinch rollers 31 and 32 are driven in the opposite direction to each other to constitute a carry-in portion for carrying the glass cutting material into the crush unit.

On this same horizontal plane, as shown in Fig. 3, a pair of crush gears 34 and 35 are all arranged in parallel with the X axis at regular intervals up and down. This spacing is also equal to the spacing between the pinch rollers. As described below, the crush gears 34 and 35 are helical gears in which the teeth of the gear are formed in a helical shape along the longitudinal direction. The crush gears 34 and 35 have the same structure except that the helical gears have opposite spiral directions and are driven at the same rotation speed in opposite directions.

Above the crush gear 34, five support gears 36 and 37 are provided at predetermined intervals, respectively, as shown in Figs. The support gears 36 and 37 are supported and rotated by five support parts 38 and 39 attached to the left and right sides of the lower part of the upper panel 21, respectively, and both of them engage with the crush gear 34. These support gears 36 and 37 are attached so that the horizontally long crush gear 34 will not bend in the + Z axis direction.

The same five support gears 40 are attached to the bottom of the crush gear 35 at equal intervals. The support gear 40 is supported by the support part 41 so as to rotate, and both of them engage with the crush gear 35. The support gear 40 is attached so that the horizontally long crush gear 35 does not bend in the -Z axis direction. The intervals of the support gears 36, 37, and 40 do not necessarily have to be constant, and the number thereof can be appropriately selected. Further, under the crush gear 35, a shooter 42 for inducing broken glass pieces is provided.

Next, the second crush unit 50 for the X-stage material will be described. Like the crush unit 30 described above, the crush unit 50 is disposed such that both of the pair of crush gears 51 and 52 face each other horizontally in parallel with the X axis at predetermined intervals. The crush gears 51 and 52 are also of the same structure except that the helical gears have opposite spiral directions, and are driven at the same rotation speed in opposite directions. The distance between the crush gears 51 and 52 is also the same as the distance between the pinch rollers 31 and 32. Five support gears 53 and 54 are provided on the side of the crush gear 51 at predetermined intervals, respectively. The support gears 53 and 54 are supported and rotated by the support portions 55 and 56 respectively attached to the side plates. The support gears 53 and 54 mesh with the crush gear 51, and are attached so that the crush gear 51 does not bend in the + Y direction.

Similarly, five pairs of support gears 57 and 58 are provided on the side of the crush gear 52 at equal intervals. The support gears 57 and 58 are supported and rotated by the support portions 59 and 60 attached to the side plates 22, respectively. These support gears mesh with the crush gears 52, and are attached so that the crush gears 52 do not bend in the -Y direction. The Y-axis position of each support gear can be adjusted by adjusting screws. At the bottom of the crusher, a recovery box 61 for broken pieces is provided.

As shown in Figs. 3 and 4, the drive unit 70 is provided with a motor 71, and the motor 71 is provided with a reduction mechanism. The drive of the motor 71 is transmitted to the pulley 74 and the crush gear 51 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 crush gear 52. The crush gears 51 and 52 are driven at the same speed in opposite directions to each other. Similarly, a pulley 77 is provided on the shaft of the crush gear 51, and the pulley 79 is connected through the timing belt 78 as shown in Fig. 4B. The pulley 79 is connected to the crush gear 35 to transmit rotational force to the crush gear 34 through the power transmission gear 80 and the power transmission gear 81 at the other end thereof. Accordingly, the crush gears 34 and 35 are driven at the same speed in opposite directions to each other.

Next, the teeth and grooves formed in the crush gear will be described. Each of the crush gears 34 and 35, 51, and 52 has the same structure except that the helical gears have the opposite spiral directions, and thus the crush gear 34 will be described in detail with reference to FIGS. 5 and 6 below. 5 is an enlarged perspective view of the crush gear 34, and FIG. 6 is a developed view thereof. The crush gear 34 is a helical gear in which the teeth are formed in a helical shape, and has an angle of torsion α of the teeth, for example, 20 degrees. In Fig. 6, T1, T2,. Represents the ridge of the gear tooth. The teeth of the gear form a plurality of grooves at regular intervals. Each groove | channel is a cutting groove | channel of V shape etc. of 2 mm in depth, for example, and let pitch P along X axis be 30 mm. In the developed view of FIG. 6, C1, C2,. Denotes the cutter position at the time of forming the groove, and in reality the cutter positions C1, C2... And T1, T2... In the drawing, grooves are formed in the portions painted in black. A plurality of grooves are arranged at intervals of pitch P on a line parallel to the X-axis, and are arranged P / 2 pitches, that is, 15 mm apart in each line.

Next, the operation of this embodiment will be described. The roller 12 is rotated and the conveyor 11 is conveyed, and the motor 71 is rotated at the same time. When the glass substrate cutting device is driven here, the Y-stage material Y1, Y2, X-stage material X1, X2 are mixed and carried into the crusher on the conveyor 11. The Y ends Y1 and Y2 are conveyed on the conveyor 11 with the Y-axis direction in the longitudinal direction, and are fed into the crush gears 34 and 35 through the pinch rollers 31 and 32 of the crush unit 30. Since the ridge lines of the crush gears 34 and 35 are in continuous contact with the cutting material Y1, the cutting material can be inserted without vibration between the crush gears 34 and 35. Since the teeth of the crush gears 34 and 35 are arranged along a line parallel to the X-axis, the edges of the grooves are applied to the Y-edges which are sequentially conveyed according to the rotation of the crush gears 34 and 35. By high pressure, cracking occurs almost simultaneously from this position. Fig. 7 shows a state in which cracks occur in the Y-edge Y1, and a dashed-dotted line shows an imaginary line where each V groove of the crush gears 34 and 35 contacts the Y-edge material. Cracks often occur as Y-shaped cracks as star cracks on all four sides of the grooves indicated by black dots. Since such star-shaped cracks occur almost simultaneously at regular intervals, the cracks can be continued to break the Y-edge material into a substantially constant shape and size to form a fracture piece. The broken Y piece piece is guided to the crush unit 50 by the shooter 42.

About the X cutting members X1 and X2, they enter the shooter 42 through the gap between the conveyor 11 and the pinch roller 32, and are put into the crush gears 51 and 52 for the X cutting member. Also in this case, the X end member is inserted between the crush gears 51 and 52 by the rotation of a pair of crush gears 51 and 52. In addition, when the grooves are in contact with the cutting material, a large number of cracks are generated as star cracks at the positions of the grooves. Then, this crack is continued, and similarly to the crush of the Y-edge material, the X-edge material can be made into fracture pieces of approximately the same shape and size. These fracture pieces are collected in a recovery box 61.

In this embodiment, the X end member and the Y end member are separated along their directions so as to be broken by each crush unit. For this reason, a large amount of cutting materials can be processed in a short time. In addition, since the ridge lines of the crush gears continuously contact the glass end members, vibration is less likely to occur even when the end members are inserted. In addition, since the crush gears are supported at regular intervals by the support gears, even when the crush gears are long, there is no vibration or the like and noise can be reduced. In addition, the crush gear can be rotated at high speed, and the X cutting material and the Y cutting material can be processed in a short time.

In the first embodiment, the crush unit 30 for the Y-cutting material and the crush unit 50 for the X-cutting material are shown separately from each other up and down, but needless to say, depending on the shape of the cutting material, only one crush unit may be used. . Moreover, although the groove formed in the crush gear is made into a V-shaped groove, it can also be considered to use another groove. In addition, in the above embodiment, the fracture pieces after being broken by the Y-edge crush unit are simultaneously introduced into the crush unit for the X-edge material, but the fracture pieces broken by the Y-edge crush unit are guided directly to the recovery box. Not to mention good.

Next, a crush device according to a second embodiment of the present invention will be described. In addition to the above-described problems, the second embodiment is intended to prevent adverse effects on the environment caused by the occurrence of noise or dust when the crusher is operated. In the second embodiment, the same parts as in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. In this embodiment, as shown in Fig. 8, the opening and closing processing unit 90 is provided in the inlet portion of the glass cutting material conveyed by the conveyor 11 and the roller 12 and introduced into the crush device 20A. The crush device 20A is the same as the crush device 20 described above, except that the opening and closing processing unit 90 is provided at the inlet portion. The opening / closing processing unit 90 is a transmission type photoelectric sensor for detecting a glass cutting material disposed between the shutter 91 provided at the entrance of the glass cutting material and the shutter and the roller 12 in the crush device 20A. Photoelectric sensor 92 and controller 93. In this embodiment, the photoelectric sensor 92 is a sensing unit for sensing the cutting edge guided to the crush device 20A from the end of the roller 12, and is composed of a light transmitting unit 92a and a light receiving unit 92b. The output of the photoelectric sensor 92 is also sent to the controller 93. The controller 93 normally keeps the shutter 91 closed, and then opens the shutter 91 provided on the front of the crush device 20A based on a switch signal from the photoelectric sensor 92. In other words, when light incident on the light receiving portion 92b from the light transmitting portion 92a of the photoelectric sensor 92 is blocked by the passage of the cutting material, it is determined that the cutting material is brought into the crusher 20A, and the shutter 91 is opened. The shutter 91 is closed after a predetermined delay time until the crush device 20A is reached. As a result, the deterioration of the environment due to the generation of noise and dust generated during the fracture treatment can be reduced. In addition, although the passage of a cutting material is detected using a photoelectric sensor here, a proximity sensor, a limit switch, and other sensors can also be used as a sensing part.

In addition, in the above-mentioned first and second embodiments, although the X end material and the Y end material are mixed and conveyed on the conveyor, the X end material and the Y end material are separated beforehand, and the crush device for the X end material and the crush device for the Y end material May be installed. In this case, by providing the opening / closing processing unit in each crusher device, the closing time of the shutter can be extended, and environmental degradation can be prevented.

In addition, since the Y-cutting material has a long time passing through the shutter, after separating the X-cutting material and the Y-cutting material, the Y-cutting material is rotated 90 degrees by using a rotor to make the X-cutting material, and both are put into the crusher in the state of the X-cutting material. Also good. In this case, only the crush unit for the X cutting material is needed. In this case, the opening time of the shutter can be shortened, and environmental degradation caused by noise or dust can be greatly reduced.

In addition, although the breakdown of the cut | disconnected X-stage material and Y-stage material was demonstrated in the above-mentioned Example, this invention is a matter of course when a shape is long side as a single material after cut | disconnecting a liquid crystal panel board, such as a circular shape and a fan shape, from a mother board | substrate. The present invention can also be applied to an end piece having a shape of a substantially square shape in which the two sides are not so different in a substantially square shape.

In addition, in the above-mentioned embodiment, although the crush apparatus which processes the glass cutting material cut | disconnected by the glass substrate cutting device is demonstrated, this invention is not limited to the case where it is used for the rear end of such a glass substrate cutting device, and a single cutting material is used alone. Needless to say, it can be used as a crusher to process. Also in this case, not only a single board but also a bonded substrate may be used, and a panel substrate in which different types of brittle material substrates are bonded to each other except when the same type of brittle material substrates are bonded to each other, for example, It can also be effectively used for the breakage treatment of panel end materials generated in the manufacturing process of the display substrate for projectors in which a glass substrate and a semiconductor wafer are bonded together.

INDUSTRIAL APPLICABILITY The present invention is used in the manufacturing process of the FPD represented by the liquid crystal display panel, and the like, and the short cut of the brittle material substrate can be broken in a substantially constant size in a short time. For this reason, it is useful in the last process of manufacture of a liquid crystal panel board | substrate. Regarding the cutting material discharged in the process of manufacturing various display panels, light emitting devices, etc. using a substrate of brittle material, the specifications of the crush gear, which is a component of the crush unit, can be changed according to their various shapes and sizes. It is possible. In addition to the above bonded substrates, a single substrate called a single plate can also be subjected to break processing.

1 is a perspective view showing the overall configuration of a crush device according to a first embodiment of the present invention.

Fig. 2 is a perspective view showing a longitudinal section of the crush device of this embodiment.

Fig. 3 is a sectional view showing the internal structure of the crush device of this embodiment.

4 is a diagram showing transmission of power of the present embodiment.

Fig. 5 is a perspective view of the crush gear of this embodiment.

6 is an exploded view of the crush gear of the present embodiment.

Fig. 7 is a schematic schematic diagram showing the progress of breakage caused by the crush gear when the crush device of the present embodiment is driven.

8 is a schematic diagram showing an overall configuration of a crush device according to a second embodiment of the present invention.

*** Description of the symbols for the main parts of the drawings ***

11 belt conveyer 12 rollers

20, 20A Crush Unit 21 Tops

22, 23 side plate 30 first crush unit

31, 32 Pinch Roller 34, 35, 51, 52 Crush Gear

36, 37, 40, 53, 54, 57, 58 support gear

38, 39, 41, 55, 56, 59, 60 Support 50 Second Crush Unit

61 collection box 90 opening and shutting processing department

91 Shutter 92 Photoelectric Sensor

93 controller

Claims (10)

A pair of crush gears in which the teeth are formed in a helical shape along the axis of rotation and arranged in parallel at regular intervals, A drive unit for rotationally driving the pair of crush gears at the same speed in opposite directions to each other; The carrying-in part which carries in the cutting material of a brittle material board | substrate in the direction perpendicular to the axis of the said crush gear is Equipped, Crushing device (crush), characterized in that the teeth of the crush gear is formed with grooves at regular intervals on the ridge line. A first crush unit having a tooth formed in a helical shape along a rotation axis and disposed in parallel at regular intervals and having a pair of first crush gears; A second crush unit having a tooth formed in a helical shape along a rotation axis and disposed in parallel at regular intervals and having a pair of second crush gears; A driving unit for driving each pair of crush gears of the first crush unit in the opposite direction and driving each pair of crush gears of the second crush unit in the opposite direction Equipped, The tooth of each crush gear is a crush device, characterized in that grooves are formed at regular intervals on the ridge line. The method according to claim 1 or 2, And a plurality of support gears disposed along the longitudinal direction of the crush gears and engaged with the crush gears. The method according to claim 1 or 2, The groove | channel formed on the ridgeline in the tooth of each said crush gear is a crush apparatus characterized by the above-mentioned groove. The method according to claim 1 or 2, The groove | channel formed on the ridgeline in the teeth of each said crush gear is arrange | positioned at the constant pitch interval on the line parallel to the axis | shaft, The crusher characterized by the above-mentioned. The method according to claim 1 or 2, The groove | channel formed on the ridgeline in the tooth | gear of each said crush gear is arrange | positioned at the constant pitch interval on the line parallel to the axis | shaft, and is arrange | positioned at half pitch shift for every line. The method of claim 2, The second crush unit is disposed below the first crush unit. Crushing apparatus, characterized in that. The method of claim 1, In the crusher, a shutter provided at the entrance of the end of the brittle material substrate and a sensing unit for sensing the end of the brittle material substrate carried into the crusher are provided immediately before the shutter, and the end of the brittle material substrate is provided by the sensing unit. And a sensing unit for opening and closing the shutter only when the end of the sensed brittle material substrate passes when detected. The teeth are formed in a helical shape along the axis of rotation, the teeth are grooved at regular intervals on the ridge, the pair of crush gears arranged in parallel at regular intervals to rotate in the opposite direction at the same speed, A crush method for breaking a cut piece of a brittle material substrate by carrying in a cut piece of a brittle material substrate in a direction perpendicular to the axis of the crush gear. The method of claim 9, And a shutter provided at the inlet of the end of the brittle material substrate in the crush device by detecting that the end material of the brittle material substrate is carried in, and opening the shutter only while the end of the brittle material substrate passes.

Images