CN1513739A - Roll conveyer - Google Patents
Roll conveyer Download PDFInfo
- Publication number
- CN1513739A CN1513739A CNA2003101231170A CN200310123117A CN1513739A CN 1513739 A CN1513739 A CN 1513739A CN A2003101231170 A CNA2003101231170 A CN A2003101231170A CN 200310123117 A CN200310123117 A CN 200310123117A CN 1513739 A CN1513739 A CN 1513739A
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- China
- Prior art keywords
- road
- air
- fulcrum
- roller
- mentioned
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/06—Conveying 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
- B65G49/061—Lifting, gripping, or carrying means, for one or more sheets forming independent means of transport, e.g. suction cups, transport frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
- B65G13/02—Roller-ways having driven rollers
- B65G13/06—Roller driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
- B65G39/04—Adaptations of individual rollers and supports therefor the rollers comprising a number of roller forming elements mounted on a single axle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/022—Flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying 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
- B65G51/02—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Rotary rollers 3 are provided at both the left and right ends of each support shaft 30, and are arranged side by side to compose a conveyance path (a). An air blowoff path 4 is arranged at the middle section of the conveyance path (a), and is installed over the entire length of the conveyance path (a). The upper surface of the air blowoff path 4 is formed to be a flat, porous surface 4a having breathing properties. Air is jetted out of the upper surface toward the lower surface of a flat object (b) traveling on the porous surface 4a. A thin air layer is created between them. Then, the center section of the flat object (b) is lifted without any contact. More specifically, since the center section of the flat object (b) can be maintained in a non-contact state by a thin air layer, conveyance can be made smooth, and damage such as friction scratches to the flat object (b) can be avoided in a conveyance process.
Description
Technical field
The present invention relates to a kind of transporting thin and fragile plate object, for example the roller path of plate object such as panel of LCD or plasma display device.
Background technology
Figure 11 (a) and (b) are for carrying the existing roller path of plate object.This roller path 100 is provided with frame 101 in left and right sides portion.Between these frames 101, set up fulcrum 102, and with its towards the throughput direction of roller path 100 every suitable spacing and establish.Install and fix the roller 106 of supporting plate object lateral margin at the both ends of each fulcrum 102, itself and fulcrum 102 rotate integratedly.
In addition, in the substantial middle of above-mentioned each fulcrum 102 the central roller 103 that diameter equates with above-mentioned roller 106 is set partly, it can rotate freely with respect to fulcrum 102.In addition, drive transmission mechanisms such as belt, chain, gear (figure slightly) are set, with each fulcrum 102 of synchronous regime driven in rotation, roller 106 and central roller 103 in an end of above-mentioned each fulcrum 102.
Forming outstanding guiding part 106a as the above-mentioned outer periphery of being located at the roller 106 at fulcrum 102 both ends, the outer periphery of this roller 106 from below the supporting plate object about two edge portions, and, make the plate object maintenance level of carrying on the road straight mobile by this guiding part guiding plate object broad ways skew.
When using roller path as constituted above 100 to carry the substrate of panel of LCD or plasma display device, edge position, the substrate left and right sides is supported on the outer peripheral face of the roller 106 that is located at each fulcrum 102 two ends, and substrate is being carried mobile advancing on the road along with the driven in rotation of this roller.
At this moment, the central portion of the substrate of Bao Erkuan can be sagging and be out of shape, but, its by along each central roller 103 of carrying the road central portion to be provided with from the below supporting, carry with the state of keeping approximate horizontal.
Existing patent documentation has Japanese Patent Application 2000-373954 number, Japanese Patent Application 2001-130766 number, Japanese Patent Application 2001-115669 number.
Roller path 100 is that prerequisite constitutes to carry the such large-scale and thin sheet material of substrate such as panel of LCD (approximately 0.5mm to 0.7mm) or plasma display device (approximately 2.8mm) as constituted above, but because substrate width is roughly 1200mm to 1500mm, so the central authorities of substrate can sagging distortion, often with the central roller 103 outer peripheral face state of contact that are configured in carrying path central portion under be transferred.But because the intensity of the substrate of panel of LCD or plasma display device is low and impaired easily,, even there is the substrate of costliness to become the situation of defective products so the central portion of substrate is abraded because of contacting with above-mentioned central roller sometimes.
Summary of the invention
The present invention is because the problems referred to above, its purpose is to provide a kind of roller path, it can not make substrate impaired in conveying when substrates such as above-mentioned panel of LCD of conveying or plasma display device, and to produce the few mode of dust conveying substrate reliably.
In order to solve the problems of the technologies described above, roller path of the present invention sets up fulcrum between the frame of the left and right sides, and in rotatable mode freely it is supported.Fulcrum is separated suitable spacing ground and establish towards the conveyor delivery direction, constitute by this and carry the road.In addition, each fulcrum turns by linking to each other with driver train.
Rotary roller at each fulcrum both ends installation provision diameter, and be fixed in fulcrum, on one side in the both side edges portion of the tabular thing of rotary roller outer peripheral face upper support of being located at each fulcrum two ends, with this rotary roller plate object in regular turn carried by the mode of driven in rotation on one side.
Dispose the bubble-tight air of maintenance at the pars intermedia of carrying the road and blow out the road.This air blows out the road and is provided with spreading all over whole piece conveying road.
Air blows out the smooth porous area that the top formation on road has suitable aeration, air is blown out supply with pressurized air in the road, and the air pressure that air is blown out in the road raises, and goes out air from the whole top blast of smooth porous area.The air that blows out from porous area will raise by the substrate on the porous area, produces thin air layer between substrate and porous area, in the middle of carrying, substrate center portion is floated and keeps contactless state.
In addition, as above-mentioned left and right sides side edge part by the substrate that central portion is floated, the rotary roller outer peripheral face that is arranged on the fulcrum two ends supports from the below, and along with the driven in rotation of this rotary roller, is transferred carrying on the road.
Though above-mentioned air blows out the width on road and can change arbitrarily, but, to be provided with preferable along conveying road middle body.
The roller path of the present invention's the 2nd technical scheme on the basis of the present invention's the 1st technical scheme, is wherein being carried road one side configuration major axis shape magnetically-actuated wheel and in rotatable mode freely it is being carried out the axle supporting.In addition, arrange being aligned at an end of each fulcrum installing magnetic force flower wheel and with it.
And by overlooking, above-mentioned magnetically-actuated wheel roughly is orthogonal to above-mentioned magnetic force flower wheel outer peripheral face, further makes the side face of two magnetic wheels closer to each other.Therefore, when by the above-mentioned magnetically-actuated of drive source driven in rotation wheel, each magnetic force flower wheel promptly rotates along with the moving of magnetic field of this magnetically-actuated wheel, drives each fulcrum and each rotary roller rotates synchronously.
In addition, the explanation of the present invention's the 3rd technical scheme and the 5th technical scheme will cooperate " specific embodiment " described later to illustrate.
Description of drawings
Fig. 1 is for showing the birds-eye view of implementing roller path of the present invention.
Fig. 2 is the section drawing of II-II line among Fig. 1.
Fig. 3 is for showing the vertical lateral plan that cuts of air ejection cell mesh.
Fig. 4 is for showing the vertical lateral plan that cuts of the embodiment that is connected with 3 air ejection unit.
The enlarged side view of Fig. 5 for f part local excision among Fig. 1 is shown.
Fig. 6 is used in the magnetic wheel of the roller path of implementing the present invention and the block diagram of rotary roller for demonstration.
Fig. 7 is presented at magnetic force flower wheel periphery to dispose magnetic force flower wheel that the S utmost point and the N utmost point form, and the block diagram of the magnetic wheel that driven wheel constituted that the S utmost point and N utmost point coiled arrangement are formed alternately.
Fig. 8 is the longitudinal section of this roller path, the flying height of expression panel.
Fig. 9 is the enlarged drawing of g part among Fig. 1.
Figure 10 is for partly to amplify the longitudinal section of demonstration with h among Fig. 2.
Figure 11 (a) carries the birds-eye view with the conveying road of roller path for showing existing panel, (b) is x-x line section drawing in (a).
The specific embodiment
One embodiment of the invention below are described with reference to the accompanying drawings.
Fig. 1 to Fig. 3 shows enforcement roller path A of the present invention.This roller path A possess that mat pin 11 supports about two frame 1a, 1b, between this frame 1a, 1b and establish the fulcrum 30 that rotary roller 3 is housed.
About two frame 1a, 1b be the microscler tabular body that extruded aluminium forms, shown in the section drawing of Fig. 2, hollow out and form hollow bulb 11a and the gap slot 11b of be used for packing into bolt, nut, connecting element etc. etc.In the bottom of these frames 1a, 1b each other crossbearer union lever 1c to link left and right sides frame 1a, 1b.
The roller path A of present embodiment is roughly the mechanism of the panel of 700mm to 800mm and 1200mm to 1500mm for carrying width, and it carries the substrate of display panels for example or Plasmia indicating panel, that is is divided into the substrate of the state before the polylith panel.In addition, roller path A is arranged in the clean room mostly, and therefore the design of avoiding producing dust is as far as possible arranged.Upstream extremity and downstream end at the roller path A of present embodiment are connected with identical roller path or are connected with other grass-hoppers.
Two frame 1a, 1b about above-mentioned separate determining deviation configuration synthetic resin system bearing body 7, and it uses bolt 71 installations also to be fixed in frame 1a, 1b sidepiece.And, about become the fulcrum 30 that sets up rotary roller 3 between a pair of bearing body 7 to keep rotary roller 3 at these fulcrum 30 two ends.
Sagging because of weight own for fear of central portion, the fulcrum 30 of above-mentioned each rotary roller 3 makes the cannulated axle.As Fig. 2, Fig. 3, shown in Figure 5, fulcrum 30 is pressed into the U-shaped recess 72 of bearing body 7 and is mated, the bearing 31 that described bearing body 7 will be flush-mounted in both ends is mounted on frame 1a, 1b, and is supported with the state that closely is embedded in the arc sections 73 that is formed at these U-shaped recess 72 bottoms.
That is, it is smaller than the diameter of bearing 31 that the width setup of above-mentioned U-shaped recess 72 becomes, and arc sections 73 makes roughly consistent with the diameter of bearing 31.Thereby the width of the U-shaped recess 72 of bearing body 7 is expanded on bearing 31 limits of supporting fulcrum 30, and the limit keeps closely being entrenched in the state in the arc sections 73.
Though bearing body 7 shown in Figure 5 ' possess and above-mentioned bearing body 7 identical functions, but be configured to the structure of the bearing of two kinds of different-diameters of setting-in.That is,, simultaneously, form path U-shaped recess 74, and form the arc sections 75 that is used for assembling the path bearing equally in its inside portion at opposition side at the identical U-shaped recess 72 of a square one-tenth of bearing body 7 and above-mentioned bearing body 7.Because this bearing body 7 ' two kinds of bearings of size can be installed, so effective to situation that must a change shaft diameter etc.
If the fulcrum 30 that both ends are fixed with rotary roller 3 is set up between each bearing body 7 of two frame 1a, 1b in turn, each fulcrum 30 and the rotary roller 3 of being located at each both ends, fulcrum 30 left and right sides separate determining deviation ground arrangement towards the throughput direction of roller path A.In addition,, separate Rack and promptly arrange towards throughput direction, and be configured to the conveying road a (Fig. 1, Fig. 2) of transportation panel b with the rotary roller 3 of the width of panel b spacing configuration about equally in the right-hand end and the left-hand end of each fulcrum 30.
Be arranged in and carry the rotary roller 3 of a left and right sides, road for example to make, along the lateral border week of roller periphery 3a establishing guide ribs 3b by synthetic resin such as polyacetal or polyethylenes.In addition, be arranged with groove at above-mentioned roller periphery 3a, setting-in on-slip encircles 3c (Fig. 6) with O shape.That is, the width of the conveying road a of panel b is for being located at the width between the guide ribs 3b of left-right rotation roller 3 week, and it is big than the width of panel b that this width setup becomes, and is configured to when transportation panel b, carries approximately in line carrying on a of road.In addition, not that above-mentioned O shape ring 3c must be set, also configurable residence is with roller outer peripheral face supporting faceplate b.
Constitute carrying an end of the fulcrum 30 of road a as described above, is right-hand end at present embodiment, stretches out laterally from bearing body 7, installs and fixing magnetic force flower wheel 5 at this extension.The back that is configured in of magnetic force flower wheel 5 describes in detail.
In addition, the magnetically-actuated wheel 6 that forms the major axis shape is set in the outside portion of above-mentioned right side frame 1a.Separate suitable spacing at the lateral surface of right side frame 1a and install and anchor shaft supporting mass 8, insert major axis 60 successively and supported at the through hole 8a that has bearing of these supporting masses 8.On this major axis 60, separate prescribed distance and set magnetically-actuated wheel 6, and be located at each magnetic force flower wheel 5 under (Fig. 2, Fig. 5).
Above-mentioned magnetically-actuated wheel 6 also uses with cost-cutting for one by two magnetic wheels that width is narrow, and by guaranteeing that the length corresponding to magnetic force flower wheel 5 diameters increases torque.
Fig. 6 represents the configuration and the direction of magnetically-actuated wheel 6 and magnetic force flower wheel 5.
Magnetically-actuated wheel 6 outsides along right side frame 1a be arranged in parallel.As above-mentioned, each magnetic force flower wheel 5 with fulcrum 30 towards the Width of carrying road a rotate this magnetic force flower wheel of ground axle suspension freely be positioned at associated each magnetically-actuated wheel 6 directly over.And magnetically-actuated is taken turns 6 peripheries and magnetic force flower wheel 5 peripheries and is close and leaves plurality of gaps therebetween, and by overlooking, their axle center each other are arranged to mutually orthogonal.
Above-mentioned magnetically-actuated wheel 6 is made of permanent magnets such as Mn-Al (manganese-aluminium) magnet, magnetizes N utmost point band 6n and S utmost point band 6s with spiral fashion on the tubular side face.This magnetically-actuated wheel 6 has microscler major axis 60, is installed on this major axis 60 with separating prescribed distance.
On the other hand, it is 6 identical that the magnetic force flower wheel 5 that is installed on fulcrum 30 1 ends and above-mentioned magnetically-actuated are taken turns, on the tubular side face with spiral fashion magnetization N utmost point band 5n and S utmost point band 5s.
NS the two poles of the earth band 6n of above-mentioned magnetically-actuated wheel 6, the spacing of 6s are helix pitch, and be consistent with two helix pitch of NS the two poles of the earth band 5n, the 5s of the magnetic force flower wheel 5 of being located at fulcrum 30 ends.
Therefore, with regard to as the above-mentioned driver train that utilizes magnetic wheel 5,6 with regard to, NS the two poles of the earth band 6n, the 6s of magnetically-actuated wheel 6 and NS the two poles of the earth band 5n, the 5s of magnetic force flower wheel 5 often are maintained at closest approach by the attractive force that magnetic field produced.That is, when driving major axis 60 rotated with magnetically-actuated wheel 6, the scope of screw-shaped NS the two poles of the earth band 6n, 6s can be accompanied by this rotation, and is mobile continuously towards the axis direction of magnetically-actuated wheel 6.
On the other hand, each magnetic force flower wheel 5 is because of seeing roughly quadrature with the axle center of above-mentioned magnetically-actuated wheel 6 by overlooking, and along side face alternate configurations NS the two poles of the earth band 5n, 5s, and therefore the spiral along with NS the two poles of the earth band 6n, the 6s of magnetically-actuated wheel 6 moves and moves successively and rotation.
By this, the magnetic force of magnetically-actuated wheel 6 produces rotational force with the magnetic interaction of each magnetic force flower wheel 5, drives each fulcrum 30 and rotary roller 3 that these magnetic force flower wheels 5 are housed and rotates in the same direction, the propulsive effort of acquisition transportation panel b.
Subsidiary one carries, if retrograde rotation magnetically-actuated wheel 6, each magnetic force flower wheel 5, fulcrum 30 and also retrograde rotation of rotary roller 3.
The magnetic force flower wheel that fulcrum 30 and rotary roller 3 are rotated also can constitute as shown in Figure 7.This magnetic force flower wheel 5 ' have magnetic along magnetic force flower wheel side face alternately has N utmost point 5n and S utmost point 5s.Even be located at the magnetic force flower wheel 5 of fulcrum 30 ' dispose the N utmost point and the S utmost point as described above, still with aforementioned magnetic force flower wheel 5 same driven in rotation.Therefore, owing to be that contactless transmission drives, so, can significantly reduce the generation of dust compared to existing drive transmission mechanism.
In addition, disclosed magnetic wheel such as above-mentioned magnetic wheel and the flat 5-290500 of Japanese Patent Application number, the flat 2001-624001 of Japanese Patent Application number is identical.
In the beginning of above-mentioned major axis 60 end side drive source 50 is set.Drive source 50 possesses gear case 53, and it is mounted on the sidepiece at frame 1a top.CD-ROM drive motor 51 is mounted on said gear case 53, via train of gears 52 with link to each other between motor output shaft 54 and the major axis 60 (Fig. 1).
Roller path A of the present invention, dispose each the magnetic force flower wheel 5 and the bearing body 7 thereof of fulcrum 30 right-hand ends that are installed on supporting rotary roller 3 as mentioned above in the right frame 1a outside, also dispose each magnetically-actuated wheel 6, major axis 60 and an axle bed 8, prevent that easily the dust that produces from above-mentioned drive division is that the boundary invades and carries road a one side with frame 1a.In addition, above-mentioned structure is covered by the outboard cover 55 of right side frame 1a comprehensively, and these thorough strick precaution designs are to take place for the improper situation of avoiding dust to influence in the panel conveying.
Certainly, by attracting air, can obtain higher cleanliness from outboard cover 55.
At the central portion of the conveying road a that constitutes as described above, be provided with air along the total length of this conveying road a and blow out road 4.Air blows out road 4 and is provided with ventilation path 46 (being towards the long box-shaped of throughput direction), and separates five pressure box 4c that prescribed distance is provided with on this ventilation path 46.This pressure box 4c is communicated with via the hole of face of joint with above-mentioned ventilation path 4b, will supply with the air that 4d supplied with by the air of central authorities below being located at vent passage 4b, supplies in each pressure box 4c from vent passage 4b.Under the present embodiment situation, above-mentioned pressure box 4c towards throughput direction with uniformly-spaced and establish five (Fig. 1, Fig. 3).In addition, constitute the width that above-mentioned air blows out the vent passage on road 4 and no doubt can change arbitrarily, but, be set at as above-mentioned embodiment and carry roughly 1/3 of road, can obtain good result.
The top opening of each pressure box 4 is by lid 4e obturation.Spreading all over whole ground on this lid 4e wears aperture and constitutes perforation face 4a.There is the air of supplying with in the pressure box 4c to blow out from the aperture that is arranged in this perforation face 4a, the air that is blown out sprays below the panel b that carries road a upward to carry, form thin air layer between below perforation face 4a and panel b, make the central portion of panel b under the no touch state, float (Fig. 8).Subsidiary one carries, and the inner setting of above-mentioned pressure box 4 becomes to keep roughly 0.1 to 1.0kPa static pressure.
The stainless steel sheet of above-mentioned lid 4e about by 0.4mm constitutes, under the situation of present embodiment, though wear the hole of diameter 0.5mm with the spacing of 1 mm, but, these numerical value, material etc. can suitably be changed.
In addition, the air-breathing supply port 4d below being located at above-mentioned pressure box 4c is connected with the air supply hose 41 that links to each other with air feeder such as blowing engine (figure slightly), to carry out the supply of air.
Need not superfluous words, the air of being supplied with by air supply port 4d yes the high air of cleanliness.
In addition, the porous material that constitutes porous area is such as mentioned above wearing on the metal the hole 4a ' porous material of a large amount of paths except using, and also can use porous plastids such as filter or cellulosic.For example, using hole diameter is the PTFE (polytetrafluoroethylene) of 5 μ to 100 μ or the pore materials such as super-high density polyethylene of hole diameter 5 μ to 30 μ, also can obtain identical effect.
But, in this case, if use clean pressurized air, then effect is better.
Along in the fulcrum 30 of carrying road a institute and establishing near the position of air ejection 40 left and right sides, unit, install and be supported with tape spool in freely the mode of rotating and hold 46 supporting roller 42.Supporting roller 42 when the air that is blown out as the porous area 4a above above-mentioned pressure box 4c stops for a certain reason, is used the central portion of the panel b that descends from the below supporting.
Therefore, the height of each supporting roller 42 periphery topmost, contour with left and right sides rotary roller 3 topmosts, promptly with to be connected O shape ring 3c vertual (virtual) horizontal line L each other contour, and, be set in position than the roughly high 2mm to 3mm of porous area 4a.
Moreover, make the height c1 of the central portion of carrying the panel b on a of road float over position more than the vertual (virtual) horizontal line L by the air that is blown out from each air ejection unit 40.Particularly, best is that above-mentioned height c1 is extremely near vertual (virtual) horizontal line L or float over from vertual (virtual) horizontal line L and count roughly 2mm with interior scope.
Above-mentioned supporting roller 42 can change it arbitrarily and number is set or the position is set according to the width of panel b.In addition, the shape of roller or material also can suitably change.
How to the following describes by roller path A as constituted above and carry lamellar panel b such as display panels or Plasmia indicating panel.
With panel b when the upstream side of above-mentioned roller path A is moved into top portion, two rotary rollers 3 and be supported about the end, the left and right sides of panel b then is multiplied by from the below.At this moment, this panel b is contacted with O shape ring 3c with the minimal contact surface mode of line contact (promptly with) and is sent to the downstream, and this O shape ring 3c is made by the soft synthetic resin of the rotary roller 3 periphery 3a that are inlaid in driven in rotation or rubber etc.
Panel b carrying move on a of road in, from air blow out road 4 upwards the air of ejection meet this panel b below central portion, this panel b central portion is floated.At this moment, the levitation height of panel b central portion, as previously mentioned, because of winding-up floats over the height that vertual (virtual) horizontal line is counted the amount of c1, promptly 1mm to 2mm roughly makes central portion be the upwards shape (Fig. 8) of protuberance.
As the above-mentioned panel b that carries road a that moves into, the state that floats with central portion supports positions, the left and right sides by rotary roller 3 on one side, Yi Bian advance.At this moment, if panel b sway, it is inboard and get back to central authorities then can be connected to the guide ribs 3b that is located at left-right rotation roller 3 week.This panel b limit repetitiousness carries out this kind action limit from carrying the side conveying towards downstream of road a terminal.
In addition, when panel b carries on conveying road a as mentioned above, when the air that is blown out from air ejection unit 40 stops because of certain reason, though the central portion of panel b descends, but, panel but contacts on left and right sides supporting roller 42, these supporting roller 42 rotations, and make panel b supported by pulsation-free, and the conveyor zones in the propulsive effort migration downstream of mat rotary roller 3 from the below.
When the problems referred to above take place, with about two supporting rollers 42 with panel b central portion by supporting roller 3 from the below supporting, thereby can prevent above the porous area 4a of panel b contact friction air ejection unit 40.That is, can avoid panel b and above-mentioned porous area 4a friction and the impaired defective products that occurs.
In addition, by by the contact of face contact being transformed into line, can reduce damage.And, also have no relations even might be subjected to scratch etc. in this position because the two ends, the left and right sides of above-mentioned panel b are the parts that will excise subsequently.The conveying of the plate object beyond certainly, roll-type load-transfer device of the present invention also can be used for showing as above-mentioned display panels or electricity slurry.
As previously discussed, roller path of the present invention is installed at each fulcrum both ends and the fixing rotary roller of specified diameter, and with this fulcrum towards the throughput direction of conveyer and establish.And,, and constitute the conveying road of plate object in the both side edges portion of the tabular thing of rotary roller upper support of the left and right sides.
In addition, blow out the road, and along the roughly total length on this conveying road this air is set all and blows out the road along the pars intermedia on above-mentioned conveying road configuration air.Air blows out the top smooth porous area for having aeration on road, spray from a plurality of holes being conducted to the air that this air blows out in the road, and below the plate object that on this porous area, moves, spray, between forms thin air layer, and the state that floats with the contactless substantial middle portion that makes plate object is being carried on the road steadily transportation panel.
Because under the feed status of roller path of the present invention, the mat rotary roller supports the left and right sides edge portion of plate object and can carry this plate object reliably, simultaneously, mat comes forming thin air layer because of the sagging plate object central portion of weight own with contactless state supporting transported substance from the air that porous area sprayed, so can carry out the steady conveying that prior art all can't realize to thin and fragile plate object such as display panels or Plasmia indicating panel.
In addition, in existing roller path, also exist and to come in contact the problems such as scratch that plate object central authorities are caused because of contacting with central roller, roller path of the present invention then because but the thin air layer of mat maintains contactless state with the plate object central portion, therefore can effectively be avoided in course of conveying plate object being caused the scratch equivalent damage.
The roller path of the present invention's the 2nd technical scheme, on the basis of the roller path of the present invention's the 1st technical scheme, along carrying road one side configuration and axle supporting major axis shape magnetically-actuated wheel, simultaneously, the magnetic force flower wheel is installed in a end at each fulcrum, and it is arranged in a straight line.In addition, above-mentioned magnetically-actuated wheel and each magnetic force flower wheel be orthogonal configuration roughly, and be approaching by the periphery of periphery that makes these magnetic force flower wheels and magnetically-actuated wheel, above-mentioned magnetically-actuated wheel can be connected in drive source and carry out driven in rotation.
Therefore, roller path of the present invention constitutes driver train with magnetic wheel, by this, can eliminate drive belt broken fully or produce dust, contact noise, contact friction, further cooperate the conveying of floating that utilizes above-mentioned ejection air layer, get final product the driven in rotation that the utmost point carries out fulcrum reposefully.Therefore, be very suitable for the clean and safe conveying of substrates such as LCD or PDP.
The 3rd technical scheme of the present invention, on the basis of the roller path of the present invention's the 2nd technical scheme, since with each magnetic force flower wheel of each magnetically-actuated wheel, a shaft end, and the bearing portion of these magnetic wheels be disposed at the side frame outside, so even dust produces from the bearing portion of fulcrum or the bearing portion of axle drive shaft, because dust generation place is positioned at the frame outside, fly upward to the conveying road of carrying plate object so can lower dust, and attenuating dust sticks in the bad situation on the goods.
The roller path of the present invention's the 4th technical scheme rotatably is provided with supporting roller at the fulcrum pars intermedia that is set up on the conveying road.And the height of the outer peripheral face topmost of this supporting roller is identical with the height of above-mentioned rotary roller periphery topmost.
Therefore, supply with pressurized air even stop that in plate object is carried air is blown out the road, plate object in the conveying that the mat air layer floats is still stably continued to move by rotation supporting roller freely supports, even so blow out under the function stop situation at air, the plate object ingress of air blows out the porous area on road and sustains damage in also can avoiding carrying.
The roller path of the present invention's the 5th technical scheme, by the air that blows out from porous area, make and carrying the panel central portion of carrying on the road to float, and make its levitation height above the imaginary line that connects left-right rotation roller periphery topmost, therefore the height at the panel central portion has permissible range, even tabular central portion, still can prevent the panel central portion reliably because of the vibration up-down vibration in carrying and be connected to the bad situation that supporting roller or air blow out the porous area on road in the nadir of vibration.
Claims (6)
1. roller path, plate object is carried on described roller path approximate horizontal ground, it is characterized in that, between the frame of its left and right sides, set up fulcrum and it is carried out axle bearing in rotatable mode freely, along the conveyor delivery direction this fulcrum being separated suitable spacing ground arranges, and make each fulcrum rotatable freely by driver train, at above-mentioned each fulcrum both ends the rotary roller of given diameter is installed and is fixed on each fulcrum, form in the both side edges portion of the tabular thing of rotary roller upper support at each fulcrum two ends and to carry the road, keeping bubble-tight air to blow out road and its along the pars intermedia configuration of the Width on this conveying road roughly spreads all over whole piece and carries ground, road to be provided with, this air blows out the smooth porous area that the top formation on road has suitable aeration, blows out a plurality of holes ejection of air above air blows out the road in the road with supplying to air; This air blows out the low specified amount of topmost height of above-mentioned each the rotary roller periphery of porous area aspect ratio above the road.
2. roller path as claimed in claim 1, it is characterized in that, along the side configuration major axis shape magnetically-actuated wheel on this conveying road and in rotatable mode freely it is carried out the axle supporting, and install and fix the magnetic force flower wheel in an end of each fulcrum and it is arranged being aligned, this magnetically-actuated wheel is configured to roughly quadrature with each magnetic force flower wheel, make the periphery of the periphery of magnetic force flower wheel and magnetically-actuated wheel approaching, the fulcrum of this magnetically-actuated wheel is connected in drive source, rotates synchronously and drive each magnetic force flower wheel.
3. roller path as claimed in claim 2 is characterized in that, with each magnetic force flower wheel of above-mentioned magnetically-actuated wheel, a shaft end, and the bearing portion of these magnetic wheels be disposed at the frame outside of conveyer one side.
4. as each described roller path in the claim 1 to 3, it is characterized in that, be set up in the axle center installing supporting roller on above-mentioned conveying road, making the height of outer peripheral face topmost of this supporting roller identical with the topmost height of this rotary roller periphery.
5. as each described roller path in the claim 1 to 3, it is characterized in that, by the air that blows out from porous area, make and carry the substantial middle portion of the panel of carrying on the road to float, the imaginary line that topmost linked to each other of the rotary roller periphery about its levitation height ratio is positioned at more top.
6. roller path as claimed in claim 4, it is characterized in that, by the air that blows out from porous area, make along the substantial middle portion that carries the panel of carrying on the road and float, the imaginary line that topmost linked to each other of the rotary roller periphery about its levitation height ratio is positioned at more top.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP366783/2002 | 2002-12-18 | ||
| JP2002366783A JP2004196482A (en) | 2002-12-18 | 2002-12-18 | Roller conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1513739A true CN1513739A (en) | 2004-07-21 |
Family
ID=32763880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101231170A Pending CN1513739A (en) | 2002-12-18 | 2003-12-17 | Roll conveyer |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2004196482A (en) |
| KR (1) | KR20040054533A (en) |
| CN (1) | CN1513739A (en) |
| TW (1) | TW200410886A (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2004196482A (en) | 2004-07-15 |
| KR20040054533A (en) | 2004-06-25 |
| TW200410886A (en) | 2004-07-01 |
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