CN1681656A - Apparatus for spraying ink marks on wood plates - Google Patents

Apparatus for spraying ink marks on wood plates Download PDF

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Publication number
CN1681656A
CN1681656A CN03822433.XA CN03822433A CN1681656A CN 1681656 A CN1681656 A CN 1681656A CN 03822433 A CN03822433 A CN 03822433A CN 1681656 A CN1681656 A CN 1681656A
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CN
China
Prior art keywords
plank
equipment
ink
predetermined space
discharge device
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Pending
Application number
CN03822433.XA
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Chinese (zh)
Inventor
T·L·舒尔曼
J·巴克
J·D·道克
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JM Huber Corp
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JM Huber Corp
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Filing date
Publication date
Application filed by JM Huber Corp filed Critical JM Huber Corp
Publication of CN1681656A publication Critical patent/CN1681656A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/28Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts

Abstract

The ink sprayer is used to make marks on wood plates. The wood plates are sequentially moved towards the spraying jet. A device makes the said plates moving horizontally between the driving rollers and press rollers. An actuator is used to protect the spraying jet from damage by any irregular plate or a plate out of its suitable position when a unit monitors the said plates to move. The spraying jet works in 0.0625 - 0.125 inches away from the plates that move in 150 - 600 feet per minute.

Description

The equipment that is used for spraying ink marks mark on plank
Background of the present invention
Wooden slab and thin plate are made by the wood composite products of laminate or oriented strand board (oriented strand board) and so on typically, are construction materials commonly used in commercial, industry and the residential building.In architectural process, this class plate is placed in and fixes in its lower section or on the support framework behind and wall, roof or the floor of formation building.In order to improve the efficient that plank is fixed in skeleton, can on plank, spray a graphic context label, in order to promptly plank being fixed in skeleton structure.
Typically, be the final stage in the manufacture process of plank, just before the packing and preparation shipping of plank, on plank, spray out the graphic context label that needs with prepared Chinese ink.The such markers step of most of plank manufacturer's execution, its signature velocity almost fault detection speed with plank is identical, so that do not influence or hinder the production of plank.Regrettably, high like this signature velocity can be reduced in the accuracy and the legibility of the pattern that may form in the labeling process, and this graphic context label that may cause marking becomes and simply slightly makes.The graphic context label of even now may provide one group of useful at least reference point, but they can not make the versatility maximization of product, can not give product any particularity.
A way improving this marking process is surface and the interval between the print head (common this print system comprises several print heads) of the print system of spraying prepared Chinese ink on the plank (being commonly referred to " ink-jet distance ") that reduces plank.When the ink-jet distance is very little, can on plank, form the graphic context label of more accurate clear readability, but, so little distance between plank surface and the print head also can increase such possibility, be exactly, dimension overproof in manufacture process, warpage, not alignment or plank in uneven thickness may run into print head by accident and make it by major injury or damage.Therefore, between plank and print head, must maintain a consistent all the time gap.And the fluctuation of the thickness of plank and height also may influence the accuracy that prepared Chinese ink sprays to the desired location on the plank, and then is reduced in the quality of the graphic context label that forms on the plank surface.
Therefore, need a kind of equipment that can spray prepared Chinese ink to the print surface of plank, wherein, the distance between plank and the prepared Chinese ink paint finishing is very little, can be used in the printing of carrying out the accurate clear readability of complicated graphic context label and pattern with very high speed of production.And, also need this equipment that the device that can apply vertical force in several position to the print surface of plank is arranged, remain a shape flat, the plane with print surface with plank, the flat shape of plank can increase prepared Chinese ink and be sprayed on location accuracy on the print surface, thereby can improve the quality of the picture and text, mark and the decorative pattern that form on the print surface of plank.
Summary of the present invention
The invention provides a kind of equipment that is used for spraying ink marks graphic context label on plank, it comprises: be used to make plank one by one along the device of a selected direction by a predetermined space; Be used to spray the device of prepared Chinese ink, this ink discharge device can move to its second place away from described predetermined space from its primary importance of pressing close to described predetermined space; And some exceeds the device outside the described predetermined space to be used to detect the plank of advancing along described selected direction.This equipment also comprises: some just responds described checkout gear when exceeding described predetermined space described ink discharge device is moved to the device of the described second place from described primary importance to detect the plank of advancing along described selected direction at checkout gear, thereby avoids the plank collision ink discharge device that moves; And, be used to control the device of described ink discharge device to the plank spraying ink marks graphic context label of in described predetermined space, advancing.
Characteristics of equipment of the present invention are that it can be to the plank spraying prepared Chinese ink graphic context label of advancing with the speed of 150-600 feet per minute clock.
Another characteristics of the present invention are, can accurately be sprayed on assigned position on the plank in advancing to prepared Chinese ink, and positional precision is no more than 0.125 inch.
Several brief description of drawings
When the reference accompanying drawing is read, each embodiment that can understand above-mentioned summary of the present invention better and describe in detail below.For the present invention is described, expressed each the preferable embodiment that thinks now of the present invention with accompanying drawing.But be appreciated that and the present invention strictly can not be limited to given structural configuration and realization means.In each accompanying drawing:
Fig. 1 is the stereogram that is used for to the structural configuration of a preferred embodiment of the equipment of plank spraying prepared Chinese ink of the present invention;
Fig. 2 is the part side view of this equipment, expresses the movable carriage of equipment of the present invention; And
Fig. 3 is the rear perspective view of the equipment of a remodeling of the present invention.
Detailed description of the present invention
The All Files of mentioning herein all will be cited.
" plank " speech of usefulness comprises slab and thin plate herein, and they are normally made with the Wood composite material of laminate or oriented strand board and so on and composite plate, and composite plate is made with timber, polymer and mineral mixtures of material.
" Wood composite material " is meant the composite that comprises timber and one or more additives such as binding agent or paraffin.In Wood composite material, timber normally is the form of thin slice, flakelike powder, batten, wood shavings sheet, particle and fragment.The non-limitative example of Wood composite material comprises oriented strand board (OSB), slicer board, powder plate, particieboard, medium density fibre board (MDF), laminate and be those plates of the compound of batten and wood chip.Used " flakelike powder ", " batten ", " fragment ", " particle " and " wood shavings sheet " are thought of as also can using instead mutually of being equal to mutually in this article.In the Supplement Volume to the Kirk-RothmerEncyclopedia of Chemical Technology, pp765-810,6 ThCan find the non-monopoly of Wood composite material to describe among the Edition.
The present invention aims to provide a kind of equipment that is used for making it on to spraying prepared Chinese ink on the plank simple mark of formation and picture and text and more complicated decorative pattern.Typically, this class plank is made with Wood composite material especially OSB plate.In shape, the size of this class plate normally is 4 inches wide, and 8 feet long, and the 0.25-1.5 inch is thick, and the weight of a plate is 20 to 200 pounds.In this equipment, plank is moved through a predetermined space, and a device that is used for prepared Chinese ink is sprayed on the print surface of plank is to be adjacent to described predetermined space when its primary importance.This equipment comprises that also one is used to detect plank whether some exceeds the device of (for example because plank has warpage or in uneven thickness) outside the described predetermined space, also have one can detect the plank of advancing at checkout gear some moves to the prepared Chinese ink ink discharge device device of a second place when exceeding outside the predetermined space from its primary importance with regard to response detection device along preferential direction, thereby avoid moving plank collision ink discharge device, and then prevent to damage ink discharge device and electronic device wherein.As second kind of protection form of ink discharge device, a plurality of being used for preferably be set the plank by predetermined space of moving is pressed against pressing plate roller on many driving rolls.Driving rolls is that each point that is arranged in a common plane contacts with plank and rotates around several axis parallel to each other, and plank is advanced forward one by one.
By these protection mechanisms of applied in any combination; other device that to discuss below in addition; can reduce the interval (ink-jet distance) between plank and the ink discharge device greatly, thereby improve the mark that on plank, forms by prepared Chinese ink and the quality of pattern, and can reduce the danger of damage ink discharge device again greatly.And, because reducing of the interval between ink discharge device and the plank can improve the speed of plank being carried out mark.
There is the pressing plate roller that plank is pressed against on many driving rolls, just can under ink discharge device, keeps in by the process of predetermined space the print surface of plank to present and be in a shape in the plane at plank.Dependence remains such shape with print surface, can improve by ink discharge device to be printed on the figure on the plank and the accuracy and the clear legibility of pattern.
Refer now to Fig. 1, it expresses a preferred embodiment of the equipment 1 that is used for typographic(al) mark on plank.This equipment 1 comprises that is used to support the scaffold 11 (partly expression) of the plank 4 by equipment 1 of advancing one by one.A kind of preferable scaffold 11 is the Globe by the GlobeMachine Manufacturing company manufacturing in Washington state Tacoma city TMThe 16Q presser device.This scaffold 11 can be transported to predetermined space 17 to plank 4 from the final stage of OSB board assembly line (not shown) along selected direction 23, at this place prepared Chinese ink is sprayed on the print surface 20 of plank 4 (print surface 20 be sprayed on the plank 4 and stamp the zone of mark or pattern).Predetermined space 17 is rectangular spaces, and the length and the width of its length and width and ink discharge device are suitable, and the thickness that the thickness of predetermined space 17 approximates the plank that will be sprayed greatly adds needed ink-jet distance.
Equipment 1 also comprises the device that plank is advanced one by one along selected direction 23.The device that plank is advanced forward comprises motor of being controlled by controller 44 50 and the mechanical driving device (not shown) that motor 50 is connected in many driving rolls 26.Driving rolls 26 is installed on four axles 62 under the plank height, preferably each driving rolls 26 all is one deck rubber that coats that make with steel and surperficial, or can reduce the material manufacturing of skidding with certain, so that can rely on frictional force to drive plank well and it is advanced forward.
Preferably, the device that is used to plank is advanced one by one also comprises many being used for the pressing plate roller that is pressed against along the plank of selected direction 23 by predetermined space 17 on each driving rolls.Shown in each figure, pressing plate roller 29 is contained on several axles on the height that is positioned at plank 4, and each pressing plate roller 29 is at vertical each driving rolls 26 of aiming at respectively.Be in operation, each pressing plate roller 29 is contacted with plank 4 and the print surface of plank 4 is applied the biasing force of perpendicular, and print surface is remained flat surface, sprays to accuracy on the print surface to improve prepared Chinese ink.Biasing force is acted on the plank evenly distributedly, also will make it can not influence desired printed pattern.Pressing plate roller 29 is set at and driving rolls 26 between predetermined vertical distance is arranged, and set a predetermined decrement with spring or air impeller, act on the lip-deep biasing force of plank to keep the pressing plate roller.Use this configuration, can make plank be in the most flat state when plank is advanced on driving rolls 26 and guarantee to have the printing gap (ink-jet distance) of a homogeneous, can making simultaneously skids is the minimum velocity control accuracy that improves.It should be noted that:, do not depict the supporting structure of pressing plate roller 29 among Fig. 1 in order to be illustrated in the definite position and the spacing of the pressing plate roller 29 above the plank.Those skilled in the art that can dream up and can prop up the structure that bearing plate roller 29 allows it freely to rotate again.The rotation of pressing plate roller 29 is driven by plank by drive motor 50.The supporting structure of pressing plate roller 29 can be also can not be the part of the member of scaffold 11.
Make plank 4 when selected direction 23 is advanced at driving rolls 26, the print surface 20 of 29 pairs of planks 4 of each pressing plate roller applies vertical force and it is flattened, and plank 4 moves through equipment 1 and predetermined space 17 one by one.Ink discharge device is close to predetermined space 17 when ink discharge device is in its first position, as shown in Figure 1 (among this figure, ink discharge device is expressed as the ink jet printing head that is contained on the installing plate 35, and it be will be explained below).Along with plank 4 enters predetermined space 17, by ink discharge device label print on plank 4.Ink discharge device can move to the second place away from predetermined space 17 from primary importance, like this ink discharge device is removed, just in case the part of the plank 4 that moves along selected direction 23 when exceeding predetermined space 17 (being because the warpage of plank or in uneven thickness mostly), can avoid ink discharge device to sustain damage.
In order to utilize the flexible property of ink discharge device, the present invention comprises also whether a part that is used to detect plank exceeds the device outside the predetermined space 17, and a device that can response detection device ink discharge device be moved to its second place from its primary importance.The plank 4 that detection arrangement monitors is moved along selected direction 23, (particularly be too near in ink discharge device) if the part of plank 4 exceeds outside the predetermined space 17, the device of response detection device will move to its second place to ink discharge device and dangerous situation that its disengaging may be bumped from its primary importance.Can use analyzing and testing equipment such as disconnect, Laser Devices, sound system or any other appropriate format as the checkout gear in the equipment 1.Exceed outside the predetermined space 17 if checkout gear detects the part of plank, it just sends the device that a signal is given response detection device, and the latter just moves to its second place to ink discharge device from its primary importance, sustains damage to prevent it.Without the sensor-based system of electronics, acoustics or optics, and with machinery mechanism for example spring also be feasible, this will discuss hereinafter.
Ink discharge device comprises a carriage 32 that is connected in scaffold 11 pivotly.Carriage 32 has an installing plate 35, and several ink jet printing heads 38 are contained on this installing plate 35.Preferably, ink jet printing head 38 is oriented at consistent print direction, so that be easy to generate graph text information and best printing accuracy is arranged.The replacing that can be convenient to spare part is installed and reduces manufacturing cost with prototype board (modular plate) form.The bottom surface that each ink jet printing head 38 preferably is mounted to the installing plate 35 of nuzzling a bit so that it can not run into the thing of the lip-deep fragment of plank, wood shavings, wood chip and so on.But in order to reduce the ink-jet distance, they can be mounted to the bottom surface of installing plate 35 and flush.In order to improve the mark that is printed on the plank and the resolution ratio of decorative pattern, preferably ink discharge device such as ink jet printing head 38 is mounted to its distance to the print surface of plank 4 and is about the 0.0625-0.125 inch.
In some cases, the part of plank may exceed outside the predetermined space 17 slightly, in this case, can ink discharge device not removed, but available deflector (deflector) 101 be directed to the part of plank in the predetermined space 17, and the interference of the ongoing mark operation of opposing like this is for minimum.Deflector 101 is represented the most clearly in Fig. 2.Deflector 101 among Fig. 2 is guiding side plates 101 that are contained in the inclined-plane on the carriage 32.This is just for preventing that plank damage ink discharge device from providing another way, and this protection mechanism does not disturb the advantage of presswork in addition.Really, in this one side of the present invention, the very big quality of installing plate 35 can absorb impact effectively, thereby can further protect the ink discharge device as ink jet printing head 38.
Fig. 1 and 2 has also expressed a part that is used to detect plank and whether has exceeded checkout gear outside the predetermined space 17, and, can response detection device when checkout gear detects the plank of advancing along selected direction and exceeds predetermined space 17 ink discharge device be moved to the device of its second place from its primary importance.Particularly, carriage 32 is to be connected in vertical pillar 104 pivotly at pivot block 110 places, and pivot block 110 location are close to the free end of pillar 104.One end 119 of wind spring 113 is mounted on the place of pivot block below 110 on the pillar 104, and the other end 116 of spring 113 is mounted near the place of carriage 32 and near the front of motor of installing plate.Equipment 1 with normal mode of printing work (just carriage 32 primary importance shown in the solid line) in the drawings on plank 4 during spraying prepared Chinese ink, installing plate 35 is the print surfaces that are positioned at the top of predetermined space 17 and are arranged essentially parallel to plank 4.When carriage 32 was in this primary importance, spring 113 was to be in to be compressed and the state of accumulation of energy.In addition, it is fast 107 to be provided with stop, and the counterclockwise motion that is used to limit installing plate 35 surpasses the scope of regulation.
When operation, along with plank 4 is advanced along selected direction 23, if the part of plank exceeds predetermined space 17 and makes plank contact carriage 32 (hereinafter will describe in detail) with the power of a qualification, the part of the kinergety of plank just passes to spring 113 so.So spring 113 becomes kinetic energy to the potential energy converting and energy of accumulating with regard to extension, make carriage 32 clockwise pivots leave predetermined space 17 and arrive its second place, so plank 4 can not run into ink jet printing head 38 (among Fig. 2, the second place of installing plate 35 dots) by predetermined space 17.
Like this, checkout gear comprises the mechanism of deflector 101 and spring.If the power of plank 4 contact carriages 32 is enough big, so that greater than the power that applies by compressed spring 113, spring 113 is just elongated from compressive state and carriage 32 is clockwise rotated until making it arrive the second place around pivot block 110 so, this position is an equalization point, spring 113 is in extended state in this, and the power that is pulled outwardly of spring and the gravity of carriage 32 balance each other.Therefore, the power (spring rate) of spring 113 self is determining to make the size of the needed power of installing plate 35 setting in motions, so spring 113 is playing checkout gear, it can be determined need be carriage 32 turn-ofves when plank exceeds predetermined space 17 great amounts.It should be noted that: spring 113 also is a response detection device and can move to ink discharge device (it comprises carriage 32) from primary importance the part of the device that the second place uses.Except that spring, also can determine rotating bracket 32 needed power with the gas shock absorber.When using the gas shock absorber, can accurately control the size of the preload power that puts on it, thereby can accurately stipulate the susceptibility of 32 pairs of contingent collisions of carriage.In addition, equipment 1 preferably also comprises a handle 99, so that can manually adjust the position of carriage 32.
Equipment 1 also comprises vertical adjusting device, and it is used to adjust the distance (ink-jet distance) between the print surface of ink discharge device and plank.Can be less apart from adjusting to improve printing quality this, perhaps also can adjust to big to adapt to the bigger plank of solid wood or amounts of thickness variation.Although not expression in each accompanying drawing, will be understood that: vertical adjustment can be with being undertaken by public shaft-driven several linear actuators, to guarantee parallel Height Adjustment.Can monitor with the instrument of measuring height when carrying out vertical adjustment.Linear actuator preferably electronic or pneumatic.
As mentioned above, ink discharge device preferably adopts ink-jet technology.Preferably, have the ink discharge device of many ink guns now, a plurality of ink guns comprise a plurality of valves, and each valve can both spray prepared Chinese ink on the print surface 20 of plank 4.These prepared Chinese ink marks accumulate on plank with the form of figure, such as triangle, square or circular the simple geometric figure, perhaps the complicated figure such as decorative pattern, figure perhaps shows the brand name of product or the spcial character of manufacturing firm.The number of the valve on the print head is determining whether print head can be used to form prepared Chinese ink mark and figure or big complicated decorative pattern.In the preferred embodiment that Fig. 1 represents, several ink jet printing heads 38 are bearing on the installing plate 35.
Equipment of the present invention also comprises and is used to control the control device that the ink marks figure is sprayed on the ink discharge device on the plank 4 that navigates on 17 li of predetermined spaces.Although do not require automation,, control device is preferably coordinated by a computerized controller 44.This print controller 44 is preferably programmed by keyboard input, touch screen (not shown) or other input equipment of being placed on its housing outside by the user and is controlled.Also can be connected in other suitable input equipment of print controller in order to the PC serial mode.Can come with the advanced person's that computer keyboard is arranged computer control interface unit printing special pattern on plank 4 is controlled and programmed.
Have now and can also can reequip for the ready-made ink gun and the print controller that adopt to commercially available these things.For example, the trade mark of the Matthews Corporation company in Pennsylvania, America Pittsburgh city production is Jet-a-Mark Ink-jet system.These ink-jet systems adopt the ink-jet technology of giving China ink (drop-on-demand) as required to form the character and the figure of printing on plank.Ink gun can have 16 valves (being used for forming simple figure on the plank) or 32 valves (being used for forming complicated figure or special literal on plank).Can reach the printed resolution of 6.25-32dpi with this system.The Jet-a-Mark R4 that computerized controller can be produced with the Matthews Corporation company in Pennsylvania, America Pittsburgh city.
The device that is used to control ink discharge device can be manual.In other words, the operator can be with hand control plank 4 to the motion of 17 li of predetermined spaces, then manually control trigger prepared Chinese ink on the print surface 20 of plank 4 spraying and form mark, figure and pattern.But, in order to accelerate signature velocity, and, also have in order to reduce operator's intervention degree as far as possible in order to improve the mark deposition accuracies on print surface, had better adopt automatic control device.
In automation and preferable labeling process, plank 4 is driven roller 26 and advances predetermined space 17 along selected direction 23.Driving rolls 26 can and be regulated by (regularly) driving-belt (not shown) driving synchronously, and this driving-belt makes the speed of each driving rolls 26 synchronous, is advanced predetermined space 17 to keep plank 4 by the speed with homogeneous.Typically, the Synchronous Transmission driving-belt is a kind of fiber-reinforced polymer driving-belt.Synchronous belt can improve printing precision and more superior than sprocket wheel/chain transmission system.Because sprocket wheel/chain transmission system grown and just to have had elongation and wearing and tearing, even the situation of catastrophic failure can take place service time.
Can change plank 4 with frequency conversion drive (VFD) advances by the speed of predetermined space 17 along selected direction 23.VFD can improve the speed that plank is sent to predetermined space 17, and the plank that has entered predetermined space 17 is walked fast than the plank that does not enter as yet.This can guarantee to enter in succession between the tail of two planks of predetermined space 17 and the head a gap, and this gap allows photocell eye (hereinafter discussing) to distinguish two planks in succession, so that begin printing in the appropriate moment.Preferably about 1 inch of minimum clearance between two planks in succession.
Equipment of the present invention comprises and is used to monitor plank enters predetermined space 17 along selected direction 23 the monitoring device that moves.This monitoring device sends to print controller 44 to the situation that the exact position of plank and plank are about to enter predetermined space 17, so that the starting printing process.In control during ink discharge device, print controller 44 is considered the position of planks and along the movement velocity of selected direction 23.The monitoring device of monitoring plank motion can adopt multiple suitable technical equipment, is good to adopt photocell eye still.
Fig. 1 expresses the photocell eye (photo eye) 53 under the height that is contained in plank 4, and it is used to monitor plank and enters moving of predetermined space 17 along selected direction 23.Photocell eye 53 preferably adopts the split beam photoelectric cell (Split-beam photocell) of module arrow beam of light.When plank passed the light beam that photocell eye 53 (or other equivalent monitoring device) penetrates sidewards, photocell eye 53 sent a signal and gives print controller 44, made it know the exact position of plank and started printing process.The Banner Engineering Mini-beam SM312DSC that a kind of suitable photoelectric cell is a modification, it can be bought to Matthews Corporation company, and has an optical fiber extension line (B6578-503-00).Can use the support positioning support photoelectric cell of standard design, and demarcate the starting point of printing according to the leading edge of plank.
When beginning printing process at photoelectric cell triggering print controller, print controller is also monitored the speed that plank 4 moves along selected direction 23, so that can control ink discharge device forms needed figure and picture and text with each position on the print surface 20 of plank 4 combination rightly.Can be with the speed of multiple different measurement device plank, but preferably use encoder.In the embodiment shown in fig. 1, the axle one of 62 of driving rolls 26 reaches outside the hold down gag, and rotary encoder 56 is directly installed on the extension of axle 62 of driving rolls 26.The element (optical code readers, sensor or similar device, this will discuss hereinafter) that is used to measure the speed of gyration of encoder 56 is to be contained in 59 li in chest, but not expression particularly.By encoder 56 being installed in the stretching out on the part outside the hold down gag of axle 62, can prevent that sawdust is accumulated on the encoder 56, also can reduce the twisted phenomena that thermal expansion causes.The information of being collected by encoder 56 is sent to controller 44.
Another practice that encoder wheel is installed is to utilize one group of gear that is connected in a driving-belt.(do not have expression among the figure) in this mounting means, first gear is installed on the driving rolls 26 and with driving-belt and is connected mechanically to second gear, and second gear is mounted on the axle of an outside.Give each gear mutually between an appropriate gearratio so that the rotating speed of outside axle almost accurately is equal to the rotating speed of that driving rolls 26 that first gear has been installed.Then encoder is connected in outside axle.Because encoder has certain distance to the production line that carries out mark in such installation, the accumulation of sawdust and the twisted phenomena of drive vary in diameter can be reduced to minimum.
Underlined on the side of rotary encoder 56, optical code readers or sensor can read the mark on the rotary encoder 56, and the position of plank or rate signal are sent to print controller 44.The position or the rate signal that are engaged in driving rolls 26 or its plank when driving rolls 26 rotates at encoder 56 just offer controller 44, the instructions coordinate that controller 44 is imported by its according to the operator sends initiating signal to each ink-jet valve, indicates each valve ejection prepared Chinese ink droplet and print out figure on plank.
Equipment 1 also can comprise other optional feature, as is used for device that the surface of plank is handled.This kind processing device comprises the device that is used to remove the lip-deep dust of plank or other particle and as other device of antistatic aids and so on.Among Fig. 3, the device that is used to handle the plank surface comprises the air knife (air knife) 201 of the dust on the print surface 20 that can remove plank 4 or is fixed in the brush of support.Air knife flows the print surface that purges plank strong with uniform air, removes particle and bits sheet on it.The Standard Air Knife that the Exair Corporation company that can select for use Ohio, USA Xin Xinna to carry the city produces TMWith SuperAir Knife TMAir knife.In addition, can be fixed in supporting structure to an anti-static device (such as the label in Fig. 1 and 3 222), be used to eliminate the electrostatic charge on the print surface that is accumulated in grinded OSB plate.As not eliminating this electrostatic charge, the prepared Chinese ink droplet is disperseed, when solvent reached certain concentration in air, the danger that sets off an explosion in addition wished to remove those electrostatic charges therefore especially.Can adopt the tinsel slice for removing electrostatic charge.This paillon foil slice is the copper foil slice that dangles, and it is fixed in the anodized aluminium clamper of the rigidity of a ground connection.This equipment can be carried the TAKK Industries in city to Ohio, USA Xin Xinna, and Inc. company buys.
Equipment of the present invention comprises also that preferably one is used to make plank to be aligned in the side direction aligning apparatus of the lateral edge of support.This side direction aligning apparatus is used for the lateral edge (label 204 and 207 of Fig. 3) that makes plank abut in support, this can guarantee that plank correctly aims at, so that the prepared Chinese ink mark can be printed on the tram on the print surface, to form simple geometric shape or complicated figure.Among Fig. 3, the side direction aligning apparatus comprises right baffle-plate 210 and the right baffle plate 213 that extends parallel to each other.The front of right baffle-plate 210 is provided with the several plate-shaped springs 216 of a row, they are pressed on the left side edge 204 of plank 4, plank 4 is pushed against on the right baffle plate 213, like this, always is the aligned relationship of benchmark foundation and ink gun with right hand edge 204 when each plank 4 is advanced by predetermined space 17.
If be ready, can promptly beyond ink discharge device, another air knife 219 be set in the outside of the downstream of predetermined space 17, be used to accelerate the drying of the prepared Chinese ink mark on the print surface 20 of the plank 4 that comes out from predetermined space 17.This additional air knife can be selected from the air knife of above-mentioned pattern.
Any prepared Chinese ink of plank that is applicable to can be used in the present invention.Preferably, in solvent, form not consoluet suspension with the sort of colouring agent (pigment or dyestuff) or be dissolved into the prepared Chinese ink of emulsion fully.Preferable solvent is an Arrcostab, such as alkyl acetates or acetate alkyl butyl ester.Colouring agent is preferably with the mineral material and sufficiently high molecular wt is preferably arranged, so that it is not easy to diffuse through or ooze the cover layer such as the vinyl malthoid that moves past plasticising.Can form color graphics with colouring agent, the exercise question of submitting to as October 30 calendar year 2001 is the U.S. Patent application 10/012 of " Boards Comprising an Array of Marks to Facilitate Attachment ", described in 918, this application is cited it here.Prepared Chinese ink should be UV resistant irradiation and be difficult for fading, fast doing, and drying time should be at about 1-10 within second.Except that colouring agent, prepared Chinese ink also can contain several other compositions, such as tackifier or thickener, surfactant, polymer adhesive, opacifying agent, anticorrisive agent, optical brightener, plasticizer, dispersible acid, flocculating agent and defoamer etc.
A kind of preferable prepared Chinese ink is to do black " non-setting " prepared Chinese ink, and it is the suspension of pigment particle in the acetate alkyl ester solvent.The viscosity of this non-setting prepared Chinese ink in the time of 80 is 2.3-3.5cps (centipoise), is about 5 to 10 seconds its drying time.
As mentioned above, can be sprayed at the print surface of plank to prepared Chinese ink and form tag mark, operation instruction, digit strings and the decorative pattern of mark, bar code, date, work teams and groups.Various marks preferably divide into groups to arrange so that identification, and available securing member (not shown) is fixed in skeleton structure to plank and forms the position on wall, roof or floor.Mark on the plank can be chosen as various shape, comprises circle, round dot, square, rhombus and other suitable shape.The exercise question of submitting on October 30 calendar year 2001 cited above is to have described the various figures that can be sprayed on the plank in the U.S. Patent application 10/012,918 of " BoardsComprising an Array of Marks to Facilitate Attachment ".
Although plank 4 can be with any material manufacturing commonly used, plank is preferably with timber or Wood composite material manufacturing, and the preferred materials of making plank is the OSB plate.The suitable composition of the manufacture method of OSB plate and OSB plate, those skilled in the art that understand.
Those skilled in the art that should be appreciated that, in creative widely concept and range of the present invention, can make various changes to the foregoing description, so can not be limited to each specific embodiment that has disclosed to the present invention, and will be appreciated that: the various modification in its spirit and scope are contained in the present invention, as claims limit.

Claims (12)

1. an equipment that is used for spraying ink marks figure on plank comprises:
Be used to make plank to advance by the device in a predetermined space along a selected direction one by one;
Be used to spray the device of prepared Chinese ink, this ink discharge device can move to its second place away from described predetermined space from its primary importance of pressing close to described predetermined space;
Some runs off the device outside the described predetermined space to be used to detect the plank that moves along described selected direction;
Some just responds described checkout gear moves to described ink discharge device the described second place from described primary importance device when running off described predetermined space to detect the plank of advancing along described selected direction at described monitoring device; And
Be used to control the device of described ink discharge device to the plank spraying ink marks figure of in described predetermined space, advancing.
2. equipment as claimed in claim 1, it is characterized in that the described device that plank is advanced one by one comprises: many driving rolls, manyly can press against the plank of advancing pressing plate roller on the described driving rolls and be connected in the device that described driving rolls can make plank advance along described selected direction with the speed of about 150-600 feet per minute clock by described predetermined space.
3. equipment as claimed in claim 2, it is characterized in that, described ink discharge device comprises: vertical support, carriage that is connected in described vertical support pivotly and an installing plate is arranged, several are contained in the ink gun on the described installing plate, described movement of bracket during to described primary importance described ink gun press close to described predetermined space, described ink gun was about the 0.0625-0.125 inch to the distance by the surface of spraying ink marks figure of described plank when plank was advanced by described space.
4. equipment as claimed in claim 3 is characterized in that, the described device that is used to detect plank can be chosen as disconnect, Laser Devices, sound system or spring.
5. equipment as claimed in claim 3, it is characterized in that, the described device that is used to make the ink discharge device motion comprises that at least one one end is mounted on described carriage and its other end is mounted on the spring of described vertical support, wherein, described at least one spring is in compressive state during in described primary importance in described cradle.
6. equipment as claimed in claim 3, it comprises that also is used to the side direction aligning apparatus that plank is alignd with the lateral edge of scaffold.
7. equipment as claimed in claim 3 is characterized in that described each ink gun is positioned to point to the print direction of a unanimity.
8. equipment as claimed in claim 5 is characterized in that, described carriage can be pivoted to the described second place from described primary importance.
9. equipment as claimed in claim 1 is characterized in that, this equipment also comprises the device of the print surface that is used to handle plank, in order to particle on the print surface of removing plank and electrostatic charge.
10. equipment as claimed in claim 7 is characterized in that, described side direction aligning apparatus comprises a pair of substantially parallel baffle plate mutually.
11. equipment as claimed in claim 1 is characterized in that, this equipment also comprises be used to control the device of described ink discharge device to the plank spraying ink marks figure of advancing in described predetermined space.
12. equipment as claimed in claim 1 is characterized in that, described ink marks figure is formed by prepared Chinese ink, and prepared Chinese ink is the solution that colouring agent and alkyl esters solvent form.
CN03822433.XA 2003-06-24 2003-06-24 Apparatus for spraying ink marks on wood plates Pending CN1681656A (en)

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PCT/US2003/019894 WO2005009735A1 (en) 2003-06-24 2003-06-24 Apparatus for applying ink indicia to boards

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Also Published As

Publication number Publication date
EP1636034A1 (en) 2006-03-22
NZ537612A (en) 2006-09-29
BR0313325A (en) 2005-06-14
NO20050342L (en) 2005-08-11
NO20050342D0 (en) 2005-01-21
CA2492712A1 (en) 2004-12-24
CA2492712C (en) 2008-04-29
WO2005009735A1 (en) 2005-02-03

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