JP2015029922A - Transparent plate cleaning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent plate cleaning system which can completely clean both surfaces of a transparent plate.SOLUTION: A transparent plate cleaning system includes a first cleaning device for cleaning one surface of a transparent plate, a second cleaning device for cleaning the other surface of the transparent plate, and a transfer device for transferring the transparent plate from the first cleaning device to the second cleaning device. The transfer device inverts the transparent plate during transfer. The transfer device may include a holding part for holding the transparent plate by contacting with the other surface of the transparent plate. The first cleaning device includes a first conveying part for conveying the transparent plate from a first cleaning region to a first delivering region. The second cleaning device includes a second conveying part for conveying the transparent plate from a second delivering region to a second cleaning region. The holding part sucks the other surface of the transparent plate in the first delivering region. The transfer device preferably includes a rotating part which rotates around a predetermined rotation axis so that the transparent plate is inverted while the holding part is transferred from the first delivering region to a second delivering region side.

Description

  The present invention relates to a transparent plate cleaning system.

  An optical coating or the like is formed on the front and back surfaces of a transparent plate such as glass used for a liquid crystal display device or the like. When the transparent plate is dirty, an electric circuit or an optical coating may not be formed properly. Therefore, a system for cleaning the transparent plate is required.

  An apparatus for gripping both ends of a transparent plate and cleaning both surfaces of the transparent plate with a brush has been proposed (Japanese Patent Laid-Open No. 8-89910). However, in such a configuration, both ends of the transparent plate being gripped cannot be cleaned. Moreover, it is difficult to deal with transparent plates of various sizes in the configuration in which both ends of the transparent plate are gripped.

  A cleaning device has also been proposed in which a transparent plate is placed on a clean cloth laid on a belt conveyor, and the entire upper surface of the transparent plate is wiped with a dust-free cloth sprayed with alcohol (China). Patent Application Publication No. 102698988). However, in such a configuration, since only one side of the transparent plate can be cleaned, it is necessary to turn the transparent plate whose one side is cleaned and supply it to the same cleaning device. In addition, when such a work is performed by a person, there is a risk that the surface cleaned by the person at that time may be soiled.

JP-A-8-89910 Chinese Patent Application No. 102688988

  Then, this invention makes it a subject to provide the transparent plate cleaning system which can clean both surfaces of a transparent plate easily and reliably.

  The invention made to solve the above-described problems includes a first cleaning device for cleaning one surface of a transparent plate, a second cleaning device for cleaning the other surface of the transparent plate, and the first cleaning device for the transparent plate. A transparent plate cleaning system comprising a transfer device for transferring from the device to the second cleaning device, wherein the transfer device reverses the transparent plate during transfer.

  According to the transparent plate cleaning system, the transparent plate whose one surface is entirely cleaned by the first cleaning device is transferred to the second cleaning device while being inverted. In the transparent plate cleaning system, since the second cleaning device does not need to hold the end of the transparent plate when cleaning the transparent plate, the second cleaning device can clean the entire other surface of the transparent plate. The transparent plate cleaning system can completely clean both surfaces of the transparent plate in a short time without human intervention.

  In the transparent plate cleaning system, the transfer device may include a holding unit that holds the transparent plate in contact with the other surface of the transparent plate. According to this configuration, since the transfer device does not touch the other surface of the transparent plate cleaned by the first cleaning device and transfers one of the surfaces to the second cleaning device, the transparent plate is cleaned. There is no danger of the face being soiled.

  In the transparent plate cleaning system, the first cleaning device includes a first transport unit that transports the transparent plate from the first cleaning region to the first delivery region, and the second cleaning device transfers the transparent plate to the first cleaning region. 2 having a second transport section that transports from the delivery area to the second cleaning area, the holding section adsorbs the other surface of the transparent plate in the first delivery area, and the transfer device holds the holding section. It is good to further have a rotation part which rotates centering on a predetermined axis of rotation so that the transparent plate may be reversed while moving from the first delivery area to the second delivery area side. According to this structure, since a holding | maintenance part adsorb | sucks a transparent plate, there is no danger that the cleaned surface of a transparent plate will be soiled. Further, the transfer device can efficiently transfer and invert the transparent plate by a rotational motion.

  In the transparent plate cleaning system, the transfer device is provided between the rotating unit and the arm, the holding unit being attached to one end side and the other end being supported by the rotating unit, It is preferable to have a projecting mechanism that projects or retracts the arm in the suction direction of the holding unit. By having an arm that protrudes to lift the transparent plate when the holding unit sucks the transparent plate in the first delivery area, the transparent plate can be sucked without rotating the rotating unit. That is, with this configuration, the holding unit in the first delivery area can adsorb the transparent plate before the holding unit in the second delivery area releases the transparent plate. It can work without waiting.

  In the transparent plate cleaning system, the height at which the second transport unit contacts the transparent plate may be less than the height at which the first transport unit contacts the transparent plate. A rotating unit is arranged between the contact surface height of the first transport unit and the contact surface height of the second transport unit, and the holding unit sucks the transparent plate so as to partially overlap the rotating unit in plan view. By doing so, the installation area of the transfer device can be reduced, and consequently the space for the transparent plate cleaning system can be saved.

  In the transparent plate cleaning system, the plurality of holding portions and the arms are arranged symmetrically about the rotation axis, and the first delivery area and the second delivery area are symmetrical about the rotation axis. It is good to be arranged in. According to this configuration, when one holding part sucks the transparent plate in the first delivery area, the other holding part is arranged in the second delivery area. 2. The transparent plate can be released in the delivery area. For this reason, the said transparent plate transfer apparatus can transfer many transparent plates.

  The transparent plate cleaning system includes a control device that controls operations of the holding portion, the protruding mechanism, and the rotating portion, and the control device is supplied with the transparent plate in the first delivery region, and the transparent plate In the state where the protrusion is moving, the protrusion mechanism causes the arm to protrude and the holding portion controls the suction portion to adsorb the transparent plate, and the holding portion according to a confirmation signal in the second delivery area. After the release control element that controls to release the transparent plate, the adsorption of the transparent plate in the first delivery region, and the release of the transparent plate in the second delivery region are completed, It is good to have a rotation control element which controls to rotate. Thus, by having the suction control element, the release control element, and the rotation control element, the suction of the transparent plate in the first delivery area, the release of the transparent board in the second delivery area, and the second delivery from the first delivery area. The transparent plate can be efficiently transferred to the area.

  In the transparent plate cleaning system, the suction control element is provided on the other arm at the same time as the release control element controls the holding portion provided on one arm to release the transparent plate. The holding unit may be controlled to adsorb the transparent plate. By controlling in this way, the waiting time is small and the efficiency can be increased.

  In the transparent plate cleaning system, the arm can be expanded and contracted, and the release control element controls the holding unit to adsorb the transparent plate with the arm extended, and the release control element or the rotation control. The element may be controlled to contract the arm of the second delivery area after the holding part releases the transparent plate and before the rotating body rotates. If the arm is contracted after releasing the transparent plate in the second delivery area, the arm does not interfere with the member that receives the transparent plate during rotation.

  The transparent plate cleaning system of the present invention can completely clean both surfaces of a transparent plate without human intervention. Moreover, in the transparent plate cleaning system of this invention, since processes, such as conveyance of a transparent plate, are unnecessary compared with the case where a person intervenes, both surfaces of a transparent plate can be cleaned in a short time.

It is a typical side view showing the transparent board cleaning system of one embodiment of the present invention. It is a typical top view which shows the transparent plate transfer apparatus of the transparent plate cleaning system of FIG. It is a typical side view of the transparent plate transfer apparatus of FIG. It is a block diagram which shows the structure of a transparent plate transfer apparatus. It is a typical side view which illustrates the standby state of the transparent plate transfer apparatus in the case of transferring a short transparent plate. It is a typical side view which illustrates the transparent plate transfer apparatus in the next state of FIG. It is a typical side view which illustrates the transparent plate transfer apparatus in the next state of FIG. It is a typical side view which illustrates the transparent plate transfer apparatus in the next state of FIG. It is a typical side view which illustrates the standby state of the transparent plate transfer apparatus in the case of transferring a long transparent plate. FIG. 10 is a schematic side view illustrating the transparent plate transfer device in the next state of FIG. 9. It is a typical side view which illustrates the standby state of the transparent plate transfer apparatus in the next state of FIG. It is a schematic plan view of the transparent plate transfer apparatus which concerns on the transparent plate cleaning system of embodiment different from FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. First, the transparent plate cleaning system according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 11.

[First embodiment]
A transparent plate cleaning system 1 in FIG. 1 includes a first cleaning device 10 that cleans one surface (first surface) of a transparent thin plate-like transparent plate P, and the other surface (second surface) of the transparent plate P. A second cleaning device 20 for cleaning and a transparent plate transfer device 30 for transferring the transparent plate P from the first cleaning device 10 to the second cleaning device 20 are provided. Here, the transparent plate P includes, for example, a glass or resin substrate used in a liquid crystal display device or the like.

<First cleaning device>
The first cleaning device 10 includes a first transport unit 11 and a first cleaning unit 12. The first transport unit 11 removes the transparent plate P from the transparent plate supply region A1 placed in a state where the transparent plate P is in contact with the second surface via the first cleaning region A2 where the transparent plate P is cleaned. It consists of the belt conveyor which conveys the transparent board P to 1st delivery area | region A3 delivered to the transparent board transfer apparatus 30. FIG. The first cleaning unit 12 cleans the first surface of the transparent plate P placed on the first transport unit 11 in the first cleaning region A2.

  The 1st cleaning part 12 is constituted so that the dirt adhering to the 1st surface of transparent board P may be wiped off as follows. First, alcohol is sprayed on a clean long cloth 13 formed so as not to generate dust by a spraying device (not shown). Then, the long cloth 13 is pressed against the transparent plate P placed on the first transport unit 11 by the disk 14 rotating around the vertical eccentric shaft. Thereby, the long cloth 13 is moved to draw a circle on the transparent plate P, and the dirt on the first surface of the transparent plate P is wiped off.

<Second cleaning device>
The second cleaning device 20 includes a second transport unit 21 and a second cleaning unit 22. The second transport unit 21 discharges the transparent plate P via the second cleaning region A5 where the transparent plate P is cleaned from the second delivery region A4 that receives the transparent plate P from the transparent plate transfer device 30. The transparent plate P is conveyed up to. The second cleaning unit 22 cleans the second surface of the transparent plate P in the second cleaning region A5.

  The second transport unit 21 includes a belt conveyor 23 and a clean long elongate cloth 24 that is supplied onto the belt conveyor 23 and moves at the same speed as the belt conveyor 23. The transparent plate P is placed in a state where it is in contact with the first surface cleaned by the first cleaning device 10 on the long fabric 24 for placement that is always newly supplied. The height at which the second transport unit 21 of the second cleaning device 20 contacts the transparent plate P is less than the height at which the first transport unit 11 of the first cleaning device 10 contacts the transparent plate P.

  The 2nd cleaning part 22 is comprised so that the stain | pollution | contamination of the 1st surface of the transparent plate P may be wiped off as follows. First, alcohol is sprayed on a clean long cloth 25 formed so as not to generate dust by a spraying device (not shown). Then, the long cloth 25 is pressed against the transparent plate P placed on the second transport unit 21 by the disk 26 that rotates about the vertical eccentric shaft. Thereby, the long cloth 25 is moved to draw a circle on the transparent plate P, and wipes off the dirt on the second surface of the transparent plate P.

<Transparent plate transfer device>
FIG. 2 illustrates a plan view of the transparent plate transfer device 30, and FIG. 3 illustrates a plan view of the transparent plate transfer device 30. As shown in detail in FIGS. 2 and 3, the transparent plate transfer device 30 includes a provisional receiving member 31, a holding portion 32, an arm 33, a protruding mechanism 34, and a rotating portion 35. The temporary receiving member 31 temporarily supports the second surface of the transparent plate P discharged from the first cleaning device 10 (see FIG. 1) in the first delivery area A3. The holding part 32 sucks the second surface of the transparent plate P supported by the provisional receiving member 31. The arm 33 is provided with a holding portion 32 on one end side and can be expanded and contracted. The protruding mechanism 34 is composed of an air cylinder that supports the other end of the arm 33. The rotating part 35 extends substantially parallel to the transparent plate P to which the protruding mechanism 34 is fixed and is attracted to the holding part 32 (a direction perpendicular and horizontal to the direction in which the first transport unit 11 transports the transparent plate P). It can rotate around the rotation axis. Two sets of the holding portion 32, the arm 33, and the protruding mechanism 34 are arranged symmetrically about the rotation axis of the rotating portion 35.

  The temporary receiving member 31 includes a plurality of rows of pulleys arranged side by side in the transport direction of the first transport unit 11. The provisional receiving members 31 are arranged on the upstream side (the first cleaning device 10 side in FIG. 1) at smaller intervals in the transport direction of the first transport unit 11 than on the downstream side. Further, the provisional receiving members 31 are arranged at intervals wider than the width of the arms 33 in the transverse direction orthogonal to the conveying direction of the first conveying unit 11 so that the arms 33 can pass through. The provisional receiving members 31 are arranged at small intervals in the transverse direction orthogonal to the conveying direction of the first conveying unit 11 so that the transparent plate P having a small width can be supported on the upstream side, and the transparent plate having a large width on the downstream side. They are arranged at large intervals in the transverse direction so that P can be supported.

  The holding part 32 has a plurality of vacuum pads 36 attached to the arm 33. The arm 33 is formed with a plurality of suction holes 37 that communicate with a flow path connected to a vacuum source (not shown) and to which a vacuum pad 36 can be attached. The vacuum pad 36 sucks and supports the transparent plate P. These vacuum pads 36 are attached at appropriate positions according to the size of the transparent plate P to be sucked. The suction hole 37 to which the vacuum pad 36 is not attached is sealed with a plug.

  The arm 33 is in a direction perpendicular to the suction direction of the holding part 32 (a direction parallel to the transparent plate P adsorbed to the holding part 32 as shown in FIG. 3), and the holding part 32 is arranged in the first delivery area A3. When this is done, it can expand and contract in the horizontal direction parallel to the transport direction D of the first transport unit 11. Therefore, the arm 33 includes a fixing member 38 supported by the protruding mechanism 34 and a slide member 39 provided so as to be slidable with respect to the fixing member 38. More specifically, the fixing member 38 includes a slide tube 38a of a rodless cylinder and a housing 38b. The slide member 39 includes a slide table 39a of the rodless cylinder and an operation direction of the rodless cylinder from the slide table 39a. It includes an elongated plate-like member 39b that is extended and is provided with a holding portion 32 on the opposite side to the slide table 39a.

  The protrusion mechanism 34 causes the arm 33 to protrude (separate from the rotating part 35) or retract (close to the rotating part 35) in parallel with the suction direction of the holding part 32. When the protruding mechanism 34 retracts the arm 33 in a state where the arm 33 is horizontally disposed so as to support the holding portion 32 in the first delivery area A3, the temporary receiving member 31 is lower than the height at which the temporary receiving member 31 supports the transparent plate P. When the entire vacuum pad 36 of the holding portion 32 is positioned and the protruding mechanism 34 protrudes the arm 33, the suction surface of the vacuum pad 36 is positioned above the height at which the temporary receiving member 31 supports the transparent plate P.

  The rotating unit 35 is rotated around the rotation axis by the motor 40. The rotation axis of the rotation unit 35 is disposed at a height between a portion where the first conveyance unit 11 is in contact with the transparent plate P and a portion where the second conveyance unit 21 is in contact with the transparent plate P. When the rotating part 35 rotates, the arm 33 moves so as to turn between the provisional receiving members 31.

  In addition, the transparent plate transfer device 30 includes an upstream sensor 41, a downstream sensor 42, and a release sensor 43. The upstream sensor 41 detects the presence or absence of the transparent plate P on the extension side (upstream side) of the holding portion 32 when the arm 33 is extended in the first delivery area A3. The downstream sensor 42 detects the presence or absence of the transparent plate P on the contraction side (downstream side) of the holding portion 32 when the arm 33 is contracted in the first delivery region A3. The release side sensor 43 detects the presence or absence of the transparent plate P on the extension side (downstream side) of the holding portion 32 when the arm 33 is extended in the second delivery area A4. The upstream sensor 41, the downstream sensor 42, and the release sensor 43 are preferably non-contact type sensors such as photoelectric sensors, and are fixed at positions that do not interfere with other components by the rotation of the rotating unit 35.

  Further, the transparent plate transfer device 30 includes a control device 44 that controls the operation of each of the above-described components. The control device 44 is preferably constituted by a programmable microcomputer or the like.

  The block diagram of FIG. 4 shows the relationship among the components related to the control of the transparent plate transfer device 30. Condition settings such as the size of the transparent plate P to be transferred are input in advance to the control device 44 via the setting input unit 45. In addition, detection signals from the upstream sensor 41, the downstream sensor 42, and the release sensor 43 are input to the control device 44. Based on these inputs, the control device 44 controls the suction operation of the holding portion 32, the expansion / contraction operation of the arm 33, the protrusion / retraction operation of the protrusion mechanism 34, and the rotation operation of the rotation portion 35. In the transparent plate transfer device 30, two sets of holding portions 32, arms 33, and protruding mechanisms 34 are arranged symmetrically about the rotation axis of the rotating portion 35. Since each component is individually controlled, the components are distinguished from each other by adding a “first” or “second” number as necessary.

  The control device 44 includes an adsorption control element 46, a release control element 47, and a rotation control element 48. The adsorption control element 46 controls the operation for the holding unit 32 to adsorb the transparent plate P in the first delivery area A3. The release control element 47 controls an operation for the holding unit 32 to release the transparent plate P and deliver it to the second cleaning device 20 in the second delivery area A4. The rotation control element 48 controls the operation for rotating the rotating unit 35 to transfer the transparent plate P from the first delivery area A3 to the second delivery area A4. The suction control element 46, the release control element 47, and the rotation control element 48 are part of the circuit or program of the control device 44, and can be configured to be distinguishable from other parts such as a circuit module or a subroutine. preferable.

  The suction control element 46 is set when the length of the arm 33 of the transparent plate P set in the setting input unit 45 in the expansion / contraction direction (the conveyance direction D of the first conveyance unit 11) is equal to or less than a predetermined reference length L. Is in a state where the arm 33 extends in the first delivery area A3 and the protruding mechanism 34 retracts the arm 33 downward, and when the upstream sensor 41 no longer detects the transparent plate P, the protruding mechanism 34 Controls the arm 33 to protrude upward and the holding portion 32 to adsorb the transparent plate P. When the length of the set transparent plate P exceeds the reference length L, the suction control element 46 stands by with the arm 33 contracted in the first delivery area A3, and the downstream sensor 42 is moved to the transparent plate P. Is detected, the protrusion mechanism 34 controls the arm 33 to protrude upward, and the holding part 32 controls the suction of the transparent plate P.

  In the second delivery area A4, the release control element 47 waits in a state where the protruding mechanism 34 protrudes the arm 33 downward, and sucks the holding portion 32 in accordance with the detection signal (confirmation signal) of the release side sensor 43. The holding plate 32 is controlled so as to stop and release the adsorbing transparent plate P and place the transparent plate P on the second transport unit 21 of the second cleaning device 20. More specifically, the release control element 47 does not detect the transparent plate P again after the release side sensor 43 detects the transparent plate P once after the holding unit 32 releases the transparent plate P in the previous control cycle. The transparent plate P is transferred from the second delivery area A4 to the second cleaning area A5, and it is determined that there is no transparent plate P in the second delivery area A4. Further, after the holding part 32 releases the transparent plate P, the release control element 47 causes the protruding mechanism 34 on the second delivery area A4 side to retract the arm 33 upward, and the arm 33 on the second delivery area A4 side is moved back. Shrink.

  The rotation control element 48 causes the rotating part 35 to rotate after the adsorption of the transparent plate P in the first delivery area A3 and the release of the transparent plate P and the contraction of the arm 33 in the second delivery area A4 are completed. Control.

<Operation>
Hereafter, the operation | movement of the said transparent plate cleaning system is demonstrated in order, referring mainly to FIGS. 5-11 which show the state change of the transparent plate transfer apparatus 30 in order.

  Before the transparent plate cleaning system starts operation, the user inputs the size of the glass plate in advance on the operation panel. As described above, the first cleaning device 10 (see FIG. 1) places the transparent plate P on the first transport unit 11 and transports it on the first transport unit 11 by the first cleaning unit 12. The first surface of the placed transparent plate P is cleaned. And as shown in FIG. 5, the 1st conveyance part 11 discharges | emits the transparent plate P on the temporary receiving member 31 of the transparent plate transfer apparatus 30 in 1st delivery area | region A3.

  At this time, the transparent plate transfer device 30 is supplied with the transparent plate P on the temporary receiving member 31 in a state where the arm 33 is moved backward by the protruding mechanism 34 and the holding portion 32 is retracted below the temporary receiving member 31. Wait for it. FIG. 5 shows a state in which the length of the transparent plate P in the transport direction is equal to or less than the reference length L, and the supply of the transparent plate P is waited with the arm 33 extended.

  When the transparent plate P starts to be carried into the first delivery area A3 by the first transport unit 11, the upstream sensor 41 detects the transparent plate P. Immediately after the entire transparent plate P is transferred from the first transport unit 11 to the temporary receiving member 31, the rear edge of the transparent plate P passes through the upstream sensor 41, so that the upstream sensor 41 is again the transparent plate. P cannot be detected. At this moment, as shown in FIG. 6, the protrusion mechanism 34 on the first delivery area A <b> 3 side causes the arm 33 to protrude and causes the vacuum pad 36 of the holding portion 32 to protrude above the temporary receiving member 31. Along with this, the holding portion 32 in the first delivery area A3 is connected to a vacuum source to generate a suction force. Thereby, the holding | maintenance part 32 in 1st delivery area | region A3 adsorb | sucks and hold | maintains a 2nd surface simultaneously with lifting the transparent plate P from the temporary receiving member 31. FIG. Here, immediately before the vacuum pad 36 adsorbs the transparent plate P, the transparent plate P has moved. For this reason, the vacuum pad 36 is attracted to the transparent plate P while the transparent plate P is moving.

  After the holding part 32 sucks and holds the transparent plate P in the first delivery area A3, the rotating part 35 rotates 180 ° counterclockwise in FIG. 7 as shown in FIG. That is, the rotating unit 35 rotates so that the upstream tip of the arm 33 on the first delivery region A3 side moves upward and the downstream tip of the arm 33 on the second delivery region A4 side moves downward.

  After the rotating unit 35 is rotated, as shown in FIG. 7, the transparent plate P held by the arm 33 is disposed on the second transport unit 21 of the second cleaning device 20. For this reason, the arm 33 is in a state in which the transparent plate P can be immediately placed on the second transport unit 21 if there is a request from the second cleaning device 20. On the other hand, the arm 33 on the first delivery area A3 side is extended so that the transparent plate P can be adsorbed in the first delivery area A3 as described with reference to FIG.

  In this state, when the next transparent plate P is first supplied to the first delivery area A3, the projecting mechanism 34 on the first delivery area A3 side projects the arm 33 and the holding portion 32 as shown in FIG. Adsorbs the transparent plate P. And the arm 33 by the side of 2nd delivery area A4 maintains the state which can mount the transparent plate P on the 2nd conveyance part 21, with extending | stretching.

  When the release side sensor 43 can confirm that the second transport unit 21 has transferred the transparent plate P supplied to the second delivery area A4 in the previous control cycle to the second cleaning unit A5, in other words, the second When the transparent plate P can be supplied to the supply region A4, the holding part 32 on the second delivery region A4 side is isolated from the vacuum source, and the transparent plate P is released by losing the suction force. After the holding part 32 on the second delivery area A4 side releases the transparent plate P, the protruding mechanism 34 on the second delivery area A4 side retracts the arm 33, and the arm 33 contracts to rotate the rotating part 35. At this time, the second conveying unit 21 is not interfered with.

  In the state of FIG. 7, when the release side sensor 43 confirms that there is no transparent plate P in the second delivery region A4 before the next transparent plate P is supplied to the first delivery region A3, the second delivery The holding portion 32 on the delivery area A4 side releases the transparent plate P, and the arm 33 on the second delivery area A4 side contracts and retracts (rises) by the protruding mechanism 34. In the state shown in FIG. Wait for the supply of the transparent plate P to the delivery area A3. When there is no problem in cleaning or transporting of the transparent plate P performed after the power is turned on, the suction of the transparent plate P in the first delivery area A3 and the release of the transparent plate P in the second delivery area are performed simultaneously. It is set to be.

  As described above, the rotation of the rotating unit 35 is performed after the adsorption of the transparent plate P in the first delivery region A3, the release of the transparent plate P in the second delivery region A4, and the contraction of the arm 33 are completed.

  5 to 8 described above is a case where the length of the transparent plate P is equal to or less than the reference length L. When the length of the transparent plate P exceeds the reference length L, the operation is as shown in FIGS.

  When the length of the transparent plate P exceeds the reference length L, the suction of the transparent plate P in the first delivery area A3 waits for the supply of the transparent plate P with the arm 33 contracted as shown in FIG. When the downstream sensor 42 detects the front edge of the transparent plate P, the arm 33 is protruded upward and the holding plate 32 sucks the transparent plate P. Here, immediately before the vacuum pad 36 adsorbs the transparent plate P, the transparent plate P has moved. For this reason, the vacuum pad 36 is attracted to the transparent plate P while the transparent plate P is moving.

  In the transparent plate transfer device 30, when the transparent plate P is long, the transparent plate P is sucked and held in a state of protruding from the holding portion 32 to the upstream side. Assuming that the long transparent plate P is attracted by the holding unit 32 with the arm 33 extended, the holding unit 32 can remove the upstream portion of the transparent plate P while it is still on the first transport unit 11. It is necessary to lift the transparent plate P. However, since the contact area between the first transport unit 11 and the transparent plate P is large, if the transparent plate P on the first transport unit 11 is lifted perpendicular to the surface, the first transport unit 11 and the transparent plate P are used. A vacuum (atmospheric pressure drop) occurs between the two and becomes a large resistance. Therefore, by setting the arm 33 in the contracted state, it is possible to cause the holding unit 32 to adsorb while lifting the transparent plate P after the transparent plate P is completely detached from the first transport unit 11.

  After the holding unit 32 sucks the transparent plate P, the rotating unit 35 rotates as shown in FIG. Thereafter, the protruding mechanism 34 retracts the arm 33. And as shown in FIG. 11, the arm 33 expand | extends and the transparent plate P is arrange | positioned in 2nd delivery area | region A4. Thereafter, when the release side sensor 43 confirms that the transparent plate P is not present in the second delivery area A4, the protruding mechanism 34 causes the arm 33 to protrude, and the holding portion 32 releases the transparent plate P. Thereafter, after the protruding mechanism 34 retracts the arm 33 and the arm 32 contracts, the rotating portion 35 rotates.

<Advantages>
In the transparent plate cleaning system, the first cleaning device 10 cleans the entire first surface of the transparent plate P, and the transparent plate transfer device 30 transfers and inverts the transparent plate P without touching the first surface. The entire second surface of the transparent plate P is cleaned by the device 20. For this reason, the said transparent plate cleaning system can clean both surfaces of the transparent plate P easily and reliably in a short time without a person intervening.

  For example, when the object to be cleaned is not a transparent plate P but a metal plate, a wooden plate, or the like, even if a small amount of dust or scratches remain on the plate surface, there is a possibility that it will not be a big problem on the product. However, when the transparent plate is cleaned as in the present case, even a small scratch or minute dust is noticeable, which is a problem.

  In the transparent plate cleaning system, since the transparent plate transfer device 30 is attracted to the plate surface of the transparent plate P and reverses the transparent plate P, the transparent plate P is not damaged. Further, since the transparent plate transfer device 30 transfers the transparent plate P to the second cleaning device 20 without contacting the cleaned surface, it is possible to prevent dust and dirt from adhering to the cleaned plate surface. .

  In the transparent plate cleaning system, the transparent plate transfer device 30 is arranged at a symmetrical position around the rotation axis when the holding portion 32 attached to one arm 33 in the first delivery area A3 sucks the transparent plate P. The holding portion 32 attached to the other arm 33 is disposed in the second delivery area A4. For this reason, it is possible to release the transparent plate P in the second delivery area A4 simultaneously with the adsorption of the transparent plate P in the first delivery area A3. Therefore, the efficiency is better than when the suction timing of the transparent plate P in the first delivery area A3 and the release timing of the transparent board P in the second delivery area A4 are different.

  In the transparent plate cleaning system, when the transparent plate transfer device 30 sucks the transparent plate P by the holding unit 32, the transparent plate P is moved by protruding the arm 33 using the protruding mechanism 34 without rotating the rotating unit 35. lift. Therefore, the reception of the transparent plate P from the first cleaning device 10 in the first delivery area A3 and the delivery of the transparent plate P to the second cleaning device 20 in the second delivery area A4 are not synchronized but at different timings. Yes. That is, the transparent plate cleaning system has a high processing capability because the first cleaning device 10 and the second cleaning device 20 can operate independently without waiting for each other's operation.

  In the transparent plate cleaning system, the height position at which the first transport unit 11 contacts the transparent plate P is greater than or equal to the height of the rotating unit 35, and the height position at which the second transport unit 21 contacts the transparent plate P rotates. It is below the height of the part 35. Thereby, since the transparent plate transfer apparatus 30 can hold | maintain the transparent plate P so that it may overlap with the rotation part 35 by planar view, the 1st delivery area | region A3 and 2nd delivery area | region A4 can be set near, The said transparent board cleaning system Can be reduced.

  In the transparent plate transfer device 30, the release control element 47 of the control device 44 contracts the arm 33 after the holding portion 32 releases the transparent plate P in the second delivery area A4. Thus, the arm 33 does not interfere with the second transport unit 21 when the rotating unit 35 rotates.

  In the transparent plate transfer device 30, when the transparent plate P is long in the conveyance direction, the transparent plate P is received in a state where the arm 33 is contracted. Therefore, the transparent plate P is held after being completely detached from the first conveyance unit 11. It is adsorbed while being lifted by the part 32. Thereby, compared with the case where the transparent plate P is lifted in a state where the first transport unit 11 and the transparent plate P are in contact with each other, the suction load of the holding unit 32 can be reduced. For this reason, in the transparent plate transfer apparatus 30, it can reverse | invert, conveying the transparent plate P of various sizes reliably. Furthermore, in order to release the transparent plate P by receiving the transparent plate P with the arm 33 contracted in the first delivery region A3 and rotating it, the arm 33 is released in the first delivery region A3. Compared to the case where the transparent plate A3 is received by extension, the transparent plate A3 can be transported to a position close to the second cleaning region. For this reason, the conveyance speed can be increased.

  In the transparent plate transfer device 30, the arm 33 includes a fixing member 38 and a slide member 39, and expands and contracts in parallel with the transparent plate P to which the holding unit 32 is adsorbed. For this reason, in the 2nd delivery area A4, the position which releases transparent board P on the 2nd conveyance part 21 can be chosen.

  In the transparent plate transfer device 30, the suction control element 46 of the control device 44 determines the timing of suction of the transparent plate P in the first delivery area, when the length of the transparent plate P in the transport direction exceeds the reference length L. It is determined only by the side sensor 41, and when the transport direction length of the transparent plate P is equal to or less than the reference length L, it is determined only by the downstream sensor 42. Therefore, the transparent plate P of various sizes can be adsorbed with simple control.

  Since the transparent plate transfer device 30 includes the provisional receiving member 31, it can support the transparent plate P until it is completely separated from the first transport unit 11. That is, it is not necessary to forcibly peel the transparent plate P from the first transport unit 11 when the protruding mechanism 34 causes the arm 33 to protrude in order to suck the transparent plate P with the holding unit 32. For this reason, an excessive load is not applied to the holding portion 32, and the transparent plate P can be reliably adsorbed.

[Second Embodiment]
The transparent plate cleaning system according to the second embodiment of the present invention includes the same first cleaning device 10 and second cleaning device 20 as those in the first embodiment, and a transparent plate transfer device 30a shown in FIG. About this embodiment, the same code | symbol is attached | subjected to the same component as 1st embodiment, and the overlapping description is abbreviate | omitted.

  In the transparent plate cleaning system of FIG. 12, the first cleaning device 10 and the second cleaning device 20 are arranged in parallel in a plan view. Specifically, the first cleaning device 10 and the second cleaning device 20 include a transparent plate P in the transport direction D1 of the transparent plate P by the first transport unit 11 of the first cleaning device 10 and a second transport unit 21 of the second cleaning device 20. It is arranged so that the conveyance direction D2 of P is opposite.

<Transparent plate transfer device>
The transparent plate transfer device 30a includes a rotating unit 35a that rotates about a rotation axis that is horizontal and parallel to the conveying direction D1 of the first conveying unit 11 and the conveying direction D2 of the second conveying unit 21. The rotation shaft of the rotation unit 35 a is disposed between the first cleaning device 10 and the second cleaning device 20. The rotating portion 35a is an arm-like member extending perpendicularly to the rotation axis, and is downstream from the first delivery area A3 in the transport direction D1 of the first transport section 11 and second from the second delivery area A4. It arrange | positions in the upstream of the conveyance direction D2 of the conveyance part 21. FIG. The rotating portion 35a supports the protruding mechanism 34 on the side of the first cleaning device 10 and the second cleaning device 20 on both ends.

  Since the transparent plate cleaning system having such a configuration has a short overall length, it is easy to secure an installation location.

[Other Embodiments]
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is not limited to the configuration of the embodiment described above, but is defined by the scope of the claims, and all modifications within the meaning and scope equivalent to the scope of the claims (substitutions, additions, and Deletion) is intended to be included.

  For example, the adsorption control element and the release control element may not contract the arm, and the rotation control element may contract the arm before the rotation unit rotates. In the present invention, the arm 33 is not necessarily configured to be extendable and contractible.

  In addition, if another mechanism for delivering the transparent plate is provided in the second delivery area, for example, if the second transport unit is a slide-edge type conveyor, the transparent plate transfer device moves the transparent plate with the arm contracted. It can be delivered to the second cleaning device.

  In the above embodiment, the first cleaning device 10 and the second cleaning device 20 have been described as having the first cleaning unit 12 and the second cleaning unit 22, respectively. However, the present invention is not limited to this, for example, The 1 cleaning device 10 may include two first cleaning units 12 and the second cleaning device 20 may include two second cleaning units 22. Moreover, the apparatus provided with the cleaning mechanism different from the 1st cleaning part 12 or the 2nd cleaning part 22 may be sufficient.

  In the above embodiment, the arm 33 is protruded or retracted by the protrusion mechanism 34. However, the present invention is not limited to this, and the structure without the protrusion mechanism 34 may be used.

  In the above-described embodiment, the configuration in which the arm 33 can change only in two states of extension and contraction has been described, but the present invention is not limited to this, and the arm 33 includes an arm that can change in three or more stages. It may be a configuration. In this case, it can respond to the transparent plate of various sizes further than said embodiment.

  In the above embodiment, the first cleaning device 10 is not provided with a configuration corresponding to the placing long cloth 24 of the second cleaning device 20, but the present invention is not limited to this, and the first cleaning device is not limited thereto. 10 may be provided with a configuration corresponding to the placing long cloth 24 of the second cleaning device 20.

  In the above-described embodiment, the configuration in which the transparent plate P is held by being sucked by the holding unit 32 is used. However, the present invention is not limited to this, and the transparent plate P is held by other methods such as adhesive force. There may be.

  Further, as a confirmation signal for determining the release timing of the transparent plate P in the second delivery area, an external signal for requesting the supply of the transparent plate P input from the second cleaning device 20 to the transparent plate transfer device 30 may be used. .

  In the second embodiment, the rotator 35a supports the arm 33 in parallel with the rotation axis. However, by supporting the arm 33 at a different angle, the first transport unit 11 of the first cleaning device 10 performs the operation. It can arrange | position so that the conveyance direction D1 of the transparent plate P and the conveyance direction D2 of the transparent plate P by the 2nd conveyance part 21 of the 2nd cleaning apparatus 20 may become a desired angle.

  The transparent plate cleaning system of the present invention can be suitably used for cleaning a transparent plate such as a glass substrate used in a display device of a portable device.

DESCRIPTION OF SYMBOLS 10 1st cleaning apparatus 11 1st conveyance part 12 1st cleaning part 20 2nd cleaning apparatus 21 2nd conveyance part 22 2nd cleaning part 23 Belt conveyor 30 Transparent board transfer apparatus 31 Temporary receiving member 32 Holding part 33 Arm 34 Projection mechanism 35 Rotating part 38 Fixed member 39 Slide member 41 Upstream sensor 42 Downstream sensor 44 Controller 46 Adsorption control element 47 Release control element 48 Rotation control element A1 Transparent plate supply area A2 First cleaning area A3 First delivery area A4 Second Delivery area A5 Second cleaning area A6 Transparent plate discharge area P Transparent plate

Claims (9)

A first cleaning device for cleaning one surface of the transparent plate, a second cleaning device for cleaning the other surface of the transparent plate, and a transfer device for transferring the transparent plate from the first cleaning device to the second cleaning device With
The transparent plate cleaning system in which the transfer device reverses the transparent plate during transfer.   The transparent plate cleaning system according to claim 1, wherein the transfer device has a holding portion that contacts the other surface of the transparent plate and holds the transparent plate. The first cleaning device includes a first transport unit that transports the transparent plate from a first cleaning region to a first delivery region,
The second cleaning device has a second transport unit that transports the transparent plate from the second delivery area to the second cleaning area,
The holding portion adsorbs the other surface of the transparent plate in the first delivery region;
The said transfer apparatus further has a rotation part rotated centering | focusing on a predetermined rotating shaft so that the said transparent plate may be reversed, moving the said holding | maintenance part from the said 1st delivery area to the said 2nd delivery area side. The transparent plate cleaning system described in 1.   The transfer device is provided between the rotating unit and the arm having the holding unit attached to one end side and the other end side supported by the rotating unit, and in the suction direction of the holding unit. The transparent plate cleaning system according to claim 3, further comprising a projecting mechanism for projecting or retracting the arm.   The transparent plate conveyance system according to claim 3 or 4, wherein a height at which the second conveyance unit contacts the transparent plate is less than a height at which the first conveyance unit contacts the transparent plate. The plurality of holding portions and the arms are disposed symmetrically about the rotation axis,
The transparent plate cleaning system according to any one of claims 3 to 5, wherein the first delivery area and the second delivery area are arranged symmetrically about the rotation axis. A control device for controlling the operation of the holding unit, the protruding mechanism and the rotating unit;
The control device is
In the first delivery area, the transparent plate is supplied, and an adsorption control element that controls the protruding mechanism to protrude the arm and the holding unit to adsorb the transparent plate while the transparent plate is moving. When,
A release control element for controlling the holding unit to release the transparent plate in response to a confirmation signal in the second delivery area;
A rotation control element that controls the rotation unit to rotate after both the adsorption of the transparent plate in the first delivery region and the release of the transparent plate in the second delivery region are completed. The transparent plate cleaning system described.   At the same time that the adsorption control element controls the release control element so that the holding part provided in one of the arms releases the transparent plate, the holding part provided in the other arm is the transparent 8. The transparent plate cleaning system according to claim 7, wherein the transparent plate cleaning system is controlled to adsorb the plate. The arm is extendable,
The release control element controls the holding unit to adsorb the transparent plate in a state where the arm is extended;
The release control element or the rotation control element controls the arm of the second delivery area to contract after the holding part releases the transparent plate and before the rotating body rotates. The transparent plate cleaning system according to claim 7 or 8.

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