TW200410886A - Roller conveyer - Google Patents

Roller conveyer Download PDF

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Publication number
TW200410886A
TW200410886A TW092103775A TW92103775A TW200410886A TW 200410886 A TW200410886 A TW 200410886A TW 092103775 A TW092103775 A TW 092103775A TW 92103775 A TW92103775 A TW 92103775A TW 200410886 A TW200410886 A TW 200410886A
Authority
TW
Taiwan
Prior art keywords
magnetic
roller
air
path
conveying path
Prior art date
Application number
TW092103775A
Other languages
Chinese (zh)
Inventor
Tetsuo Miyasaka
Kikaikk Maruyasu
Original Assignee
Maruyasu Kikai Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2002366783A priority Critical patent/JP2004196482A/en
Application filed by Maruyasu Kikai Kk filed Critical Maruyasu Kikai Kk
Publication of TW200410886A publication Critical patent/TW200410886A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B65G49/061Lifting, gripping, or carrying means, for one or more sheets forming independent means of transport, e.g. suction cups, transport frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00Roller-ways
    • B65G13/02Roller-ways having driven rollers
    • B65G13/06Roller driving means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02Adaptations of individual rollers and supports therefor
    • B65G39/04Adaptations of individual rollers and supports therefor the rollers comprising a number of roller forming elements mounted on a single axle
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K49/00Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/102Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02Articles
    • B65G2201/0214Articles of special size, shape or weigh
    • B65G2201/022Flat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G51/00Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
    • B65G51/02Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303Apparatus specially adapted to the manufacture of LCDs

Abstract

This invention provides a roller conveyer which conveys plate-like objects, such as LCD and PDP, without causing damage to the substrate. Rotating rollers 3 are provided at opposite left and right ends of each spindle 30 which jointly construct a conveying path a. An air blowing path 4 is arranged in an intermediate section of the conveying path a and extends throughout the entire length of the conveying path a. The air blowing path 4 is formed thereon a flat porous surface 4a for injecting air therefrom towards an underside of plate-like objects b so as to form a thin air layer therebetween to cause a central part of the plate-like objects b to float up in a contactless state. That is, since the central part of the plate-like objects b is maintained at a contactless state by the thin air layer for smooth conveyance, while preventing the plate-like objects b from scratching or damaging in the conveying process.

Description

200410886 2. Description of the invention [Technical field to which the invention belongs] The present invention relates to a roller conveyor for conveying thin and fragile plate-like objects, such as liquid crystal display panels or plasma display panels. [Prior Art] Fig. 11 (a) and (b) are conventional roller conveyors for conveying plate-like objects. This roller conveyor 100 is attached to the left and right sides and is provided with a frame 101. A support shaft 102 is set between these frames 101, and it is set at an appropriate interval in the conveying direction of the roller conveyor 100. Rollers 106 which support and support the side edges of the plate-like objects are mounted on both ends of each support shaft 102, and can rotate together with the support shaft 102. Further, a central roller 103 having a diameter equal to that of the above-mentioned rollers 106 is provided at approximately the central portion of each of the support shafts 102, and is rotatable relative to the support shaft 102. In addition, a drive transmission mechanism (not shown) such as a belt, a chain, and a gear is provided in one end of each of the above-mentioned support shafts 102, which drives and rotates each of the support shafts 102, the rollers 106, and the center roller 103 in a synchronized state. The protruding guide portions 106a are formed around the outer sides of the rollers 106 that are provided on the both ends of the support shaft 102 as described above. The left and right edge portions of the plate are supported around the outer sides of the rollers 106 from below. The guide is used to guide the plate in the width direction to keep the plate on the conveying path horizontal and straight. When the roller conveyor 100 configured as described above is used to convey the liquid crystal display panel or plasma display panel, In the case of the substrate, the left and right edge portions of the substrate are supported on the outer peripheral surface of the proton 10 provided at both ends of each of the support shafts 102, and the 200410886 substrate moves forward on the conveying path as the roller is driven to rotate. At this time, the central portion of the thin and wide substrate is sagging and deformed, but it is supported from below by each central roller 103 provided in the central portion of the conveyance path, and is conveyed while maintaining a substantially horizontal state. Known technical documents include Japanese Patent Application No. 2000-373954, Japanese Patent Application No. 2001-130766, and Japanese Patent Application No. 2001-115669. SUMMARY OF THE INVENTION The roller conveyor 100 configured as described above is configured on the premise that a large and thin plate such as a substrate of a liquid crystal display panel (about 0.5 mm to 0.7 mm) or a plasma display panel (about 2.8 mm) is transported. However, since the width of the substrate is approximately 1200 mm to 1500 mm, the center of the substrate may sag and deform, and it is often conveyed in contact with the outer peripheral surface of the central roller 103 disposed at the central portion of the conveyance path. However, since the substrate of a liquid crystal display panel or a plasma display panel has a low strength and is easily damaged, the central portion of the substrate may be scratched due to contact with the central roller, and even an expensive substrate may be defective. The present invention has been developed in view of the conventional problems as described above, and a technical problem of the present invention is to provide a roller conveyor that does not cause the substrate to be conveyed during the conveyance of the substrate such as the liquid crystal display panel or the plasma display panel. Damaged, and the substrate is surely transported in a manner that less dust is generated. In order to solve the above technical problems, the roller conveyor of the present invention is provided with a supporting shaft between the left and right frames and is rotatably supported. The supporting shafts are arranged at appropriate intervals in the direction of the conveyor, thereby forming a conveying path by 200410886. In addition, each support shaft can be rotated in a state of being connected by a driving mechanism. At each end of each support shaft, a rotating roller of a predetermined diameter is mounted and fixed to the support shaft. The edges of both sides of the plate are supported on the outer peripheral surface of the rotation roller provided at each end of each support shaft. The rotating roller is driven to rotate the plate-like objects sequentially. An air blowing path that maintains airtightness is arranged in the middle of the conveyance path. The air blowing path is provided on the entire conveying path. The upper surface of the air blow-out path constitutes a flat porous surface with appropriate air permeability. The compressed air is supplied to the air blow-out path, so that the air pressure in the air blow-out path is increased, and air is blown from the entire surface of the flat porous surface. The air blown from the porous surface will be pushed up by the substrate on the porous surface, and a thin layer of air will be generated between the substrate and the porous surface. During transportation, the central portion of the substrate will float and remain in a non-contact state. In addition, as described above, the left and right side edges of the substrate whose center portion is floated by the air sprayed from the porous surface are supported from below by the outer peripheral surfaces of the rotating rollers provided at both ends of the support shaft, and follow the rotating rollers. The drive is rotated and transported on the transport road. In addition, although the width of the air blowing path can be arbitrarily changed, it is preferably provided along the central portion of the conveying path. The roller conveyor of item 2 of the patent application scope is the roller conveyor of item 1 of the patent application scope, wherein a long-axis magnetic drive wheel is arranged on the side of the conveying path and is rotatably supported by the shaft. Furthermore, a magnetic driven wheel is installed at one end of each of the support shafts and aligned in a line. 200410886 In addition, the magnetic driving wheels are substantially orthogonal to the outer peripheral surface of the magnetic driven wheels in a plan view, and the peripheral surfaces of the two magnetic wheels are brought closer to each other. Therefore, when the magnetic driving wheels are rotated by a driving source, each magnetic driven wheel rotates in accordance with the movement of the magnetic field of the magnetic driving wheel, and each support shaft rotates in synchronization with each rotating roller. In addition, the description of the third and fifth and sixth patent application scopes will be described in conjunction with the embodiment of the invention described later. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a roller conveyor A embodying the present invention. This roller conveyor A is provided with two left and right frames la, lb supported by the feet 11, and a support shaft 30 equipped with a rotary roller 3 is arranged between the frames la, lb. The left and right frames la, lb are elongated plate-shaped bodies formed by extruding aluminum. As shown in the cross-sectional view of FIG. 2, the hollow part 11 a is controlled by a chisel to form a notch for mounting bolts, nuts, fixings, etc. Slot lib etc. A connecting rod lc is horizontally connected between the lower portions of these frames la, lb to connect the left and right frames la, lb. Moreover, the roller conveyor A of this embodiment is a mechanism that conveys panels having a width of approximately 700 mm to 800 mm and 1200 mm to 1500 mm, and conveys, for example, a substrate of a liquid crystal display panel or an electric display panel, that is, divided into a plurality of panels. Front substrate. In addition, most roller conveyors are installed in clean rooms, so they are designed to avoid dust as much as possible. Further, the same roller conveyor is connected to the upstream end and the downstream end of the roller conveyor A of this embodiment or other transfer devices are connected. 200410886 A synthetic resin bearing body 7 is arranged along the above-mentioned left and right frames la, lb at a certain interval, and is mounted and fixed to the sides of the frames la, lb using bolts 71. A support shaft 30 of the rotating roller 3 is set between the pair of left and right bearing bodies 7, and the rotating roller 3 is held at both ends of the support shaft 30. In order to prevent the central portion from sagging due to its own weight, the support shaft 30 of each of the above-mentioned rotating rollers 3 is made into a tubular hollow shaft. As shown in Figs. 2, 3, and 5, the support shaft 30 is pushed into the U-shaped recess of the bearing body 7 (the bearing 31 fitted on both ends is pressed into the U-shaped recess and fixed to the frame la, lb). 72 is embedded, and is supported in a state of being tightly embedded in the arc portion 73 formed in the lower portion of the U-shaped concave portion 72. That is, the width of the U-shaped recessed portion 72 is set to be smaller than the diameter of the bearing 31, and the arc portion 73 is formed to substantially match the diameter of the bearing 31. Thereby, the bearing 31 supporting the support shaft 30 is kept in a state of being fitted into the arc portion 73 while expanding the width of the U-shaped recessed portion 72 of the bearing body 7. Although the bearing body 7 'shown in Fig. 5 has the same function as the above-mentioned bearing body 7, it is arranged so that two different diameter bearings can be fitted. That is, a U-shaped recessed portion 72 of the bearing body 7 is formed on one side of the bearing body 7, and a small-diameter U-shaped recessed portion 74 is formed on the opposite side, and a circular arc is also formed on the inner portion thereof for assembling a small-diameter bearing.部 75。 75. Since this bearing body 7 'can be mounted with two types of bearings, it is effective for cases where the diameter of the support shaft must be changed. If the supporting shafts with the rotating rollers 3 fixed at both ends are sequentially erected between the bearing bodies 7 of the two frames 1a, 1b, the supporting shafts 30, and the rotating rollers 3 provided at the left and right ends thereof. That is, they are arranged side by side with a certain distance in the conveying direction of the roller conveyor A. In addition, at the right and left ends of each support shaft 30, the rotating rollers 3 arranged at a predetermined width of 200410886 degrees, that is, approximately equal to the width of the panel b, are arranged side by side in the conveying direction, and are configured to convey the panel. b's conveying path a (Figures 1 and 2). The rotating rollers 3 side by side on the left and right sides of the conveying path a are made of, for example, synthetic resin such as polyacetal or polyethylene, and a guide flange 3b is provided along the outer periphery of the roller outer periphery 3a. A groove is recessed in the outer periphery 3a of the roller, and an o-ring for slip prevention is fitted (Fig. 6). That is, the width of the conveying path a of the panel b is the width set between the guide flanges 3b of the left and right rotating rollers 3, and this width is set to be larger than the width of the panel b, and is arranged when the panel b is conveyed , About a straight line on the conveying road a. Moreover, it is not necessary to provide the above-mentioned 0-ring 3c, and it may be arranged to support the panel b with the outer peripheral surface of the roller. As described above, one end portion of the supporting shaft 30 constituting the conveying path a is a right end portion in this embodiment, and extends from the bearing body 7 to the outside, and the magnetic driven wheel 5 is mounted and fixed at the extending portion. The structure of the magnetic driven wheel 5 will be described in detail later. Further, a long-axis magnetic drive wheel 6 is provided on the outer portion of the right side frame la. The shaft support supports 8 are installed and fixed at appropriate intervals on the outer side surface of the right frame la, and the long shafts 60 are sequentially inserted and supported in the bearing insertion holes 8a with bearings of these shaft support supports 8. On this long axis 60, magnetic driving wheels 6 are arranged at predetermined intervals and positioned directly below each magnetic driven wheel 5 (Figs. 2 and 5). In addition, the magnetic drive wheel 6 uses two narrow magnetic wheels 倂 as a unit to reduce cost, and increases the torque by ensuring a length corresponding to the diameter of the magnetic driven wheel 5. 200410886 FIG. 6 shows the arrangement and direction of the magnetic driving wheels 6 and the magnetic driven wheels 5 〇 The magnetic driving wheels 6 are arranged in parallel along the outside of the right frame la. As described above, each of the magnetic driven wheels 5 rotatably supports the support shaft 30 in the width direction of the conveying path a, so that the support shaft is positioned directly above the corresponding magnetic drive wheels 6. In addition, the outer periphery of the magnetic driving wheel 6 and the outer periphery of the magnetic driven wheel 5 are close to each other with a few gaps therebetween. The axes are arranged orthogonal to each other in plan view. The magnetic drive wheel 6 is composed of a permanent magnet such as a Mn-Al (manganese-aluminum) magnet, which is magnetic on the cylindrical peripheral surface, and has helical N-pole bands 6n and S-pole bands 6s. The magnetic driving wheel 6 has an elongated long axis 60 'mounted on the long axis 60 at a predetermined pitch. On the other hand, the magnetic driven wheel 5 mounted at the end of the support shaft 30 is the same as the magnetic driving wheel 6 described above. It is magnetic on the cylindrical peripheral surface and has spiral N-pole bands 5n and S-pole bands 5s. The distance between the two NS pole strips 6n and 6s of the magnetic drive wheel 6 is the spiral pitch, which is the same as the two spiral distances between the two NS pole strips 5n and 5s of the magnetic driven wheel 5 provided at the end of the support shaft 30. Therefore, as for the driving mechanism using the magnetic wheels 5 and 6 as described above, the attraction force generated by the magnetic field of the NS two-pole belts 6n, 6s of the magnetic drive wheel 6 and the magnetic driven wheel 5 by the magnetic field 5n, 5s is often maintained at the maximum. Approaching. That is, when the driving long shaft 60 and the magnetic driving wheel 6 rotate together, the range of the spiral NS two-pole belts 6n, 6s is continuously moved toward the axial direction of the magnetic driving wheel 6 as the rotation. 200410886 On the other hand, each magnetic driven wheel 5 is approximately orthogonal to the axis of the magnetic drive wheel 6 as viewed from above, and NS poles 5n and 5s are alternately arranged along the peripheral surface. NS poles with 6n, 6s spiral movement and sequentially move and rotate. Thereby, the magnetic force of the magnetic driving wheel 6 and the magnetic force of the magnetic driven wheels 5 interact to generate a rotational force, so that each of the support shafts 30 and the rotating rollers 3 equipped with these magnetic driven wheels are driven to rotate in the same direction. The driving force of the conveying panel b is obtained. Incidentally, if the magnetic driving wheels 6 are rotated in the reverse direction, each of the magnetic driven wheels 5, the support shaft 30, and the rotating roller 3 also rotates in the reverse direction. The magnetic driven wheel that rotates the support shaft 30 and the rotating roller 3 may also be configured as shown in FIG. 7. This magnetic driven wheel 5 'is magnetic along the peripheral surface of the magnetic driven wheel and has N poles 5n and S poles 5s appearing alternately. Even if the N- and S-poles are arranged on the magnetic driven wheel 5 'provided on the support shaft 30, the magnetic driven wheel 5' is driven to rotate as described above. Therefore, the non-contact drive transmission can significantly reduce the occurrence of dust compared to the conventional drive transmission mechanism. The magnetic wheel is the same as the magnetic wheel disclosed in Japanese Patent Application No. 5-290500 and Japanese Patent Application No. 2001-624001. A drive source 50 is provided on the start end side of the long shaft 60. The drive source 50 includes a gear box 53 which is fixed to a side portion of the start end of the frame la. The driving motor 51 is fixed to the above-mentioned gear box 53, and the motor output shaft 54 and the long shaft 60 are connected via a gear train 52 (Fig. 1). The roller conveyor A of the present invention, as described above, arranges each magnetic driven wheel 5 12 200410886 and its bearing body 7 mounted on the right end of the support shaft 30 supporting the rotating roller 3 on the outside of the right frame la, and further arranges each magnetic drive The wheels 6, the long shaft 60, and the support base 8 prevent dust easily generated from the driving unit from entering the conveying path a side with the frame la as a boundary. In addition, the above structure is completely covered by the outer cover 55 of the right-side frame la. These comprehensive precautionary designs are to prevent dust from affecting the panel during transportation. Of course, by taking in air from the outer cover 55, a higher degree of cleanliness can be obtained. An air blowing path 4 is provided along the entire length of the conveying path a formed as described above. The air blowing path 4 is provided with a ventilation path 46 (in the shape of a box that is long in the conveying direction), and five air-tight boxes 4c provided at predetermined intervals on the ventilation path 46. This airtight box 4c communicates with the above-mentioned ventilation path 4b via a hole on the joint surface, and supplies air supplied from an air supply port 4d provided in the center below the air passage 4b to each airtight box 4c from the air passage 4b. In the case of this embodiment, five airtight boxes 4c are arranged at equal intervals in the conveying direction (Fig. 1, Fig. 3). In addition, although the width of the air passage constituting the air blowing path 4 can be arbitrarily changed, good results can be obtained if the above embodiment is set to approximately 1/3 of the conveyance path. The upper surface of each airtight box 4 is opened with a cover 4e to be closed. A small hole is perforated on the cover 4e to form a perforated surface 4a. The air from the supply airtight box 4c is blown out from the small hole penetrating the perforated surface 4a. The blown air is ejected toward the underside of the panel b conveyed on the conveying path a, and is formed between the perforated surface 4a and the underside of the panel b The thin layer of air causes the central portion of panel b to float in a non-contact state (Figure 8). Incidentally, the inside of the airtight box 4 is set to maintain a static pressure of approximately 0.1 to 1.0 kPa. 13 200410886 The cover 4e is made of a stainless steel plate of approximately 0.4 mm. In the case of this embodiment, although holes having a diameter of 0.5 mm are perforated at a pitch of 1 mm, these numbers and materials can be appropriately changed. An air supply hose 41 connected to an air supply device (not shown) such as a blower is connected to the intake air supply port 4d provided under the airtight box 4c to supply air. Moreover, it goes without saying that the air supplied from the air supply port 4d is, of course, clean air. In addition, as the porous material constituting the porous surface, as described above, a porous body such as a filter or a fibrous material may be used as the porous 4a 'having a large number of small diameters. For example, the same effect can be obtained by using pore materials such as PTFE (polytetrafluoroethylene) with a pore diameter of 5 # to 100 // or ultra-high density polyethylene with a pore diameter of 5 // to 30 //. However, in this case, the effect is better if clean compressed air is used. The airtight box 4 configured as above is the air ejection unit 40. In this embodiment, each air ejection unit 40 is provided with five airtight boxes 4c. In this embodiment, the air ejection units 40 are connected in series along the center of the conveying path a of the roller conveyor A. This air blowing unit 40 is increased or decreased in accordance with the overall length of the roller conveyor. Therefore, as shown in Fig. 4, the three roller ejection units can be connected to the roller conveyor A '. Moreover, in the above-mentioned embodiment, although the air ejection unit 40 of the exhaust tight box 4c is provided in the conveyance path a, when the width of the conveyance path is large, two or more air ejection units may be arranged side by side in the conveyance path. .

14 200410886 A support roller 42 having a bearing 46 is rotatably mounted and supported on the support shaft 30 provided on the conveying path a near the left and right sides of the air ejection unit 40. The support roller 42 is a central portion of the panel b which is supported from below when air blown from the porous surface 4a above the airtight box 4c stops for some reason. Therefore, the height of the uppermost part of the outer periphery of each supporting roller 42 is the same as that of the uppermost part of the rotating roller 3 on the left and right sides, that is, the same level as the horizontal line of the imaginary horizontal line connecting the 0-rings 3c to each other. The surface 4a is approximately 2 mm to 3 mm high. In addition, the height cl of the central portion of the panel b on the conveying path a is made to be higher than the imaginary horizontal line L by the air blown from each air ejection unit 40. Specifically, it is most preferable that the height cl is extremely close to the imaginary horizontal line or floats within a range of approximately 2 mm from the imaginary horizontal line L. In addition, the above-mentioned support rollers 42 can be arbitrarily changed in the number or the position of their installation in accordance with the width of the panel b. The shape or material of the roller may be changed as appropriate. Described below is how to transport a thin plate-shaped panel b such as a liquid crystal display panel or a plasma display panel by the roller conveyor A having the above-mentioned configuration. The panel b is moved from the upstream side of the roller conveyor A to the starting end portion, and the left and right end portions of the panel b are opened with two left and right rollers 3 and supported from below. At this time, the panel b contacts the 0-ring 3c with the least contact surface (in a linear contact manner) and is sent to the downstream side. The 0-ring 3c is embedded in the outer periphery 3a of the rotating roller driven by rotation. Made of soft synthetic resin or rubber. 15 200410886 While the panel b moves on the conveying path a, the air ejected upward from the air blowing path 4 hits the lower center portion of the panel b, so that the center portion of the panel b floats. At this time, the floating height of the central portion of the panel b is as described above, and the amount of cl, which is approximately 1 mm to 2 mm, floats on the imaginary horizontal line due to blowing, which makes the central portion float upward. (Figure 8). As described above, the panel b carried into the conveying path a is moved forward while supporting the left and right parts by the rollers 3 with the central portion floating. At this time, if the panel b moves left and right, it comes into contact with the inner periphery of the guide flange 3b provided on the left and right rotation rollers 3 and returns to the center. The panel b carries out this operation repeatedly while conveying from the terminal of the conveying path a to the downstream side. When the panel b is conveyed on the conveying path a, when the air blown from the air ejection unit 40 stops for some reason, although the center portion of the panel b is lowered, the panel contacts the left and right support rollers 42. The support roller 42 rotates so that the panel is smoothly supported from below, and is moved to the downstream conveyance area by the driving force of the rotation roller 3. When the above-mentioned problem occurs, the center portion of the panel b is supported from below by the right and left support rollers 42 to prevent the panel b from contacting the upper surface of the porous surface 4a of the friction air ejection unit 40. That is, it is possible to prevent the panel b from being damaged by friction with the porous surface 4a, and to prevent defective products. In addition, damage can be reduced by changing from surface contact to line contact. In addition, since the left and right ends of the above-mentioned panel b are portions to be cut out later, it is okay even if there is a possibility of abrasion or the like at this position. Of course, the roller conveyer belt of the present invention can also be used for conveying plate-like objects other than the above-mentioned liquid crystal display panel or plasma display. 16 200410886 As mentioned above, the roller conveyor of the present invention is mounted on both ends of each support shaft to fix and rotate a predetermined diameter roller, and the support shaft is set in the conveying direction of the conveyor. In addition, the side edges of the plate-like object are supported on the left and right rotating rollers to constitute a conveying path of the plate-like object. An air blow-out path is disposed along a middle portion of the conveyance path, and the air blow-out path is provided along substantially the entire length of the conveyance path. The upper surface of the air blow-out path has a flat, porous surface that is permeable to air. The air supplied to the air blow-out path is sprayed from a plurality of holes, and is sprayed under the plate-like object moving on the porous surface, forming a thin space between the two. The air layer smoothly conveys the panel on the conveying path in a state where the substantially central portion of the plate-like object is floated in a non-contact manner. In the conveying state of the roller conveyor of this case, the plate can be conveyed reliably by rotating the rollers to support the left and right side edges of the plate, and at the same time, the air ejected from the porous surface A thin air layer is formed at the center of the sagging plate-like object to support the conveyed object in a non-contact state. Therefore, thin and fragile plate-like objects such as liquid crystal display panels or plasma display panels can be stabilized. delivery. In addition, in the conventional roller conveyor, there are also defects such as abrasion caused by contact with the center of the plate due to contact with the central roller, and the roller conveyor of the present invention can be maintained by a thin air layer. The central part of the plate is in a non-contact state, so it can effectively avoid damage such as abrasion to the plate during transportation. The roller conveyor of item 2 of the scope of patent application is the roller conveyor of item 1 of the scope of patent application, in which a long-axis magnetic drive wheel is arranged and supported on one side of the conveying path, and at the same time, the One end is installed with a magnetic force from 200410886, and aligned in a straight line. The magnetic driving wheels are arranged substantially orthogonal to the magnetic driven wheels. By making the outer periphery of the magnetic driven wheels close to the outer periphery of the magnetic driving wheels, the magnetic driving wheels can be connected to a drive source and driven for rotation. Therefore, the roller conveyor of the present invention uses a magnetic wheel to constitute a driving mechanism, thereby completely eliminating wear of the driving belt or generation of dust, contact noise, and contact friction, and further cooperating with the floating conveyance using the above-mentioned air ejection layer, that is, Driven rotation of the fulcrum is extremely smooth. Therefore, it is very suitable for the clean and safe transportation of LCD or PDP substrates. The roller conveyor of item 3 of the scope of patent application is the roller conveyor of item 2 of the scope of patent application mentioned above. Because the magnetic drive wheels, the magnetic driven wheels at the ends of the supporting shafts, and the magnetic wheels The bearing part is arranged outside the frame on one side, so even if dust is generated from the bearing part of the supporting shaft or the bearing part of the drive shaft, since the dust generation location is outside the frame, dust can be reduced to the conveying path of the conveying plate. And reduce the adverse situation of dust on the product. The roller conveyor of the scope of the patent application No. 4 is rotatably provided with a supporting roller on the middle part of the support shaft erected on the conveying path. The height of the uppermost part of the outer peripheral surface of the supporting roller is the same as the height of the uppermost part of the outer periphery of the above-mentioned rotating roller. Therefore, even if the supply of compressed air to the air blow-out path is stopped during the conveyance of the plate-like object, the plate-like object continues to move quietly while being supported by the freely rotating supporting rollers during the conveyance by the air layer. When the blow-out function is stopped, it is also possible to prevent the plate-shaped object from contacting the surface of the air blow-out path during the conveyance and being damaged. The roller conveyors in the scope of patent applications No. 5 and 6 are used to blow the air from the porous surface, so that the center of the panel conveyed on the conveying path is floated, and the floating height is connected to the uppermost part of the outer circumference of the roller Above the imaginary line, the height of the center of the panel has an allowable range. Even if the center of the panel is vibrated up and down due to vibration during transportation, the center of the panel can be reliably prevented from abutting the supporting rollers or air at the lowest point of vibration. Defective condition of the porous surface of the blow-out path. [Brief description of the drawings] (I) Schematic part Fig. 1 is a plan view showing a roller conveyor embodying the present invention. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1. FIG. Fig. 3 is a longitudinal sectional side view showing a part of the air ejection unit. Fig. 4 is a longitudinal sectional side view showing an embodiment in which three air ejection units are connected. Fig. 5 is an enlarged side view showing a part f of Fig. 1 being cut away. Fig. 6 is a perspective view showing a magnetic wheel and a rotating roller used in the roller conveyor of the present invention. Fig. 7 is a perspective view showing a magnetic driven wheel in which S poles and N poles are alternately arranged on the outer periphery of the magnetic driven wheel and a driving gear in which the S poles and N poles are spirally arranged. Fig. 8 is a longitudinal sectional view of the roller conveyor, showing a floating height of the panel of 200410886. FIG. 9 is an enlarged view of part g in FIG. 1. FIG. 10 is a longitudinal sectional view showing an enlarged part h in FIG. 2. 11 (a) is a plan view showing a conveyance path of a conventional roller conveyor for panel conveyance, and (b) is a sectional view taken along line x-x in (a). (II) Symbols for components A, A 'Roller conveyor a Conveying path b Panel la, lb Frame 3 Rotating roller 30 spindle 4 Air blowing path 4a Porous surface 4b Ventilation path 5 Magnetic driven wheel 6 Magnetic driving wheel 7 Bearing body 8 Pivot bearing 40 Air ejection unit 60 Long shaft

20

Claims (1)

  1. 200410886 Pick up and apply for patent scope 1. A roller conveyor, which conveys the plate in a substantially horizontal way; sets up a support shaft between the left and right frames and supports it in a rotatable manner , Set the support shafts at appropriate intervals along the conveying direction of the conveyor, and make each support shaft structure rotate freely by a driving mechanism. Install a rotating roller of a predetermined diameter on both ends of each support shaft and fix it to each support. The shafts support the edges of both sides of the plate on the rotating rollers at both ends of the supporting shaft to form a conveying path. An air blowing path for maintaining airtightness is arranged along the middle part of the width direction of the conveying path, and it is approximately The entire conveying path is provided, and the upper surface of the air blowing path is formed with a flat porous surface with appropriate air permeability, and the air supplied to the air blowing path is ejected from a plurality of holes on the air blowing path; and the air The height of the porous surface above the blow-out path is lower than the height of the uppermost part of the outer periphery of each rotating roller. 2. For example, the roller conveyor of the scope of patent application, wherein a long-axis magnetic drive wheel is arranged along one side of the conveying path and is rotatably supported by the shaft, and is provided at one end of each support shaft Install and fix the magnetic driven wheels in a line, arrange the magnetic driven wheels and the magnetic driven wheels approximately orthogonally, make the outer periphery of the magnetic driven wheels close to the outer periphery of the magnetic driven wheels, and drive the magnetic force. The fulcrum of the wheel is connected to the driving source, and the magnetic driven wheels are rotationally driven synchronously. 3. If the roller conveyor of item 2 of the patent application scope, wherein the magnetic driving wheel, each magnetic driven wheel at the end of the supporting shaft, and the bearing portion of the magnetic wheel are arranged on a frame on the side of the conveyor Outside. 4. The roller conveyor according to any one of items 1 to 3 of the scope of patent application, 21 200410886 Among which, a support roller is installed at the center of a support shaft erected on the conveying path, so that the outer periphery of the support roller The height of the uppermost surface is the same as the height of the uppermost periphery of the rotating roller. 5. The roller conveyor according to any one of claims 1 to 3, wherein the substantially central portion of the panel conveyed on the conveying path is floated by the air blown from the porous surface, and its floating height ratio is The imaginary line connected to the uppermost part of the outer circumference of the left and right rotating rollers is further above. 6. The roller conveyor according to item 4 of the patent application, wherein the substantially central portion of the panel conveyed along the conveying path is floated by the air blown from the porous surface, and its floating height is higher than that of the left and right rotation rolls. The imaginary line connected to the uppermost part of the sub-periphery is further up. Pick up, schema, as the next page
TW092103775A 2002-12-18 2003-02-24 Roller conveyer TW200410886A (en)

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Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101093983B1 (en) * 2004-12-28 2011-12-15 엘지전자 주식회사 Glass transfering apparatus for display panel
KR100904451B1 (en) * 2005-03-18 2009-06-24 세메스 주식회사 Conveyor apparatus and conveyor method
KR100562886B1 (en) 2005-03-24 2006-03-22 주식회사 프로소닉 Ultrasonic probe for 4 dimensional image
JP4881575B2 (en) * 2005-04-28 2012-02-22 芝浦メカトロニクス株式会社 Substrate transfer device
KR100721550B1 (en) * 2006-01-19 2007-05-23 주식회사 태성기연 Apparatus for transferring of glass panel
KR100767038B1 (en) 2006-07-28 2007-10-12 세메스 주식회사 Glass substrate carrier
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JP4297945B2 (en) * 2007-03-01 2009-07-15 パナソニック株式会社 Heat treatment equipment
JP5239227B2 (en) * 2007-06-29 2013-07-17 株式会社Ihi Levitation unit and levitating transfer device
JP5422925B2 (en) * 2008-06-09 2014-02-19 株式会社Ihi Levitation transfer device
JP4564084B2 (en) * 2008-08-06 2010-10-20 平田機工株式会社 Transport system
JP5451002B2 (en) * 2008-08-06 2014-03-26 マルヤス機械株式会社 Pitch alignment conveyor
KR101147662B1 (en) * 2008-08-25 2012-05-23 세메스 주식회사 Substrate transfer apparatus
CN101648649B (en) * 2009-09-03 2012-10-10 东莞宏威数码机械有限公司 Vacuum basal plate transmitting system
KR101311852B1 (en) 2010-12-08 2013-09-27 엘아이지에이디피 주식회사 Substrate transfer unit and inspecting apparatus using the same
JP5510832B2 (en) * 2010-12-24 2014-06-04 旭硝子株式会社 Glass plate transport state reproduction device
JP5749048B2 (en) * 2011-03-18 2015-07-15 三機工業株式会社 Wheel conveyor
KR101231047B1 (en) 2012-08-13 2013-02-15 엘아이지에이디피 주식회사 Substrate transfer unit for inspecting apparatus
KR101312026B1 (en) * 2012-08-30 2013-09-27 주식회사 에스아이이 Thin plate conveying apparatus
CN102942062B (en) * 2012-11-21 2016-01-06 深圳市华星光电技术有限公司 For transmitting device and the transmission method of glass substrate
US9051128B2 (en) * 2012-11-21 2015-06-09 Shenzhen China Star Optoelectronics Technology Co., Ltd Transmission device and transmission method for glass substrate
KR101284665B1 (en) * 2012-12-11 2013-07-10 주식회사 쓰리디플러스 Carrying apparatus for substrate
JP6368499B2 (en) * 2014-02-12 2018-08-01 あおい精機株式会社 Transport device
CN104326209B (en) 2014-09-26 2016-05-04 京东方科技集团股份有限公司 A kind of regulating jig and display base plate conveyer
JP6616954B2 (en) 2015-03-31 2019-12-04 あおい精機株式会社 Transport device
CN105572141B (en) * 2016-02-27 2018-03-16 浙江三信智能机械科技有限公司 A kind of paper tube detection means
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JP2004196482A (en) 2004-07-15
KR20040054533A (en) 2004-06-25

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