CA2076395A1 - Method and apparatus for making wood samples - Google Patents
Method and apparatus for making wood samplesInfo
- Publication number
- CA2076395A1 CA2076395A1 CA002076395A CA2076395A CA2076395A1 CA 2076395 A1 CA2076395 A1 CA 2076395A1 CA 002076395 A CA002076395 A CA 002076395A CA 2076395 A CA2076395 A CA 2076395A CA 2076395 A1 CA2076395 A1 CA 2076395A1
- Authority
- CA
- Canada
- Prior art keywords
- veneer
- wood veneer
- wood
- backing material
- accordance
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 239000002023 wood Substances 0.000 title claims abstract description 205
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000011282 treatment Methods 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 55
- 239000007921 spray Substances 0.000 claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 31
- 239000000853 adhesive Substances 0.000 claims abstract description 25
- 230000001070 adhesive effect Effects 0.000 claims abstract description 25
- 239000010875 treated wood Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 18
- 239000003973 paint Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 17
- 239000003292 glue Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004831 Hot glue Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010876 untreated wood Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
- B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/16—Wood, e.g. woodboard, fibreboard, woodchips
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Forests & Forestry (AREA)
- Manufacture Of Wood Veneers (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
2076395 9112940 PCTABS00007 An apparatus for manufacturing wood samples has a rotatable mount (36) for a roll (38) of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll (38).
Veneer guides (72, 84, 150) direct the veneer through a sprayer (88) for applying a treatment to the wood veneer and a dryer (154, 158) for the wood veneer. A backing material (194) is applied to one side of the wood veneer (44) by an adhesive. A cutter (230) cuts the backed wood veneer into sample chips of a desired size.
Optical and linear sensors (300, 336) control the cutting of the wood veneer and backing material. A method of continuously manufacturing wood sample chips whereby a roll (38) of wood veneer is directed through a spray booth (88) for applying a wood treatment.
The treated wood veneer is directed through a dryer (154, 158). The dried wood veneer is directed over an adhesive-applying roller (166) such that adhesive is applied to one side of the veneer.
Backing material (194, 458) is pressed against the side of the veneer having the adhesive. The veneer and backing (458) material is then cut in accordance with preselected size specifications and the sensed movement of the veneer and backing (458). The method or apparatus produce a length of treated wood veneer which may be sized for use as wood samples, slats for blinds, or other purposes.
Veneer guides (72, 84, 150) direct the veneer through a sprayer (88) for applying a treatment to the wood veneer and a dryer (154, 158) for the wood veneer. A backing material (194) is applied to one side of the wood veneer (44) by an adhesive. A cutter (230) cuts the backed wood veneer into sample chips of a desired size.
Optical and linear sensors (300, 336) control the cutting of the wood veneer and backing material. A method of continuously manufacturing wood sample chips whereby a roll (38) of wood veneer is directed through a spray booth (88) for applying a wood treatment.
The treated wood veneer is directed through a dryer (154, 158). The dried wood veneer is directed over an adhesive-applying roller (166) such that adhesive is applied to one side of the veneer.
Backing material (194, 458) is pressed against the side of the veneer having the adhesive. The veneer and backing (458) material is then cut in accordance with preselected size specifications and the sensed movement of the veneer and backing (458). The method or apparatus produce a length of treated wood veneer which may be sized for use as wood samples, slats for blinds, or other purposes.
Description
2~763~5 WO 91/12940 PCI'/US91/01203 _ I _ h~ETHOI) I~ND ~PPARATUS FOR I~RING WOOD SAMPLES
Backqround o~ the Invention The present invention relates generally to ~inished wood samples, and more particularly to a method and apparatus for making finished wood samples involving a roll of wood veneer which is treated, adhered to a backing, and cut.
- It is customary to display treatments for wood, such as various finishes for wood furniture, paints and s~ains for ~ -wood, etc., by means of relatively bulky wood samples. For example, such wood samples often take the form of samples several inches in width and length and 1/8 inch or more in thickness. Such samples are occasionally connected ~y means of a chain interconnecting the samples via a hole drilled through each of the samples. Such wood treatment sample sets are bulky, too expensive to typically provide to a substantial number of customers or potential buyers without charge, and difficult to reproduce quickly and within tight tolerances. Other samples may be connected by a staple or other fastening means in a corner, which may result in deterioration, color mixing, or "polishing" of the samples when they rub together. One result of the use of these 25 samples is that customers will be unable to bring the samples ~ -from a store to their residence or business in which the wood product may be used. As a result, customers wiIl have ~` difficulty matching possible stains, paints, or other .treatments with carpeting or other floor, wall, or cei~ling ~;`. 30 surfaces in a desired manner.
It is desirable to have a wood sample apparatus and method which overcomes the above disadvantages and allows a ` ~large volume of wood veneer to be processed quickly with a `~
. minimum of labor. Other desirable features of such a system 35~ is that the system is environmentally safe, including the reuse of air from the heater in the spraying system. It is `
desirable that high ~uality produc~s be produced through the . ,~
.. `''','~` ' '~' ~.
~ ' ' ..
~ .,' (I
WO 91/12g40 ' PCr/US91/01203 substantially uniform staining of a large volume of samples, and because the process may be adjusted in terms of time, temperature, etc. to maintain this uniformity. It is also desirable that the system provide high precision cutting of the samples in a uniform fashion and that the system provide for the showing of the appearance of wood under various treatments by using a wood sample substantially thinner (and thus cheaper) than has been heretofore necessary. The incorporation into the method and apparatus of printing on backing applied to the veneer would improve the accuracy, quality and appearance of the sample chips and increases the promotional potential of the samples. For example, it is desired that the samples be easily distri~uted to consumers at point of purchase displays and be inviting to consumers because the samples can be manufactured such that they are small, portable, easy to use, and cheap. The continuous-process aspect of the such a method and apparatus saves manufacturing time and minimizes waste.
SummarY of the Invention There is provided, in accordance with the invention, . .
a method and apparatus for making finished wood samples which reduce or eliminate the disadvantages suggested above. More particularly, a process in accordance with the present invention includes the steps of obtaining a length of untreated wood veneer, spraying a first side of the wood veneer length with a pre-selected treatment, drying the wood veneer, obtaining a length of backing for said wood veneer Iength, adhering isaid backing to a second side of said wood veneer length, and cutting a portion of the adhered veneer ` length and backing to a desired sample size.
.; . .
An apparatus in accordance with the present ~ :
invention includes a veneer dispensing means for mounting a -'.; .:
:`. .
2~76~9~
WO91/12940 ~ PCT/US91/01203 roll of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll; a veneer directing means for directing the movemen~ of the veneer dispensed by the veneer dispensing means through a treatment applying means, a treated veneer drying means, an adhesive applying means, a backing applying means, and a cutting means; a treatment applying means for applying a wood treatment to a first side of said wood veneer dispens2d from said dispensing means and dixected by said veneer directing means; a treated veneer drying means for dryin~ veneer treated at said treatment applying means; an adhesive : applying means for applying adhesive to a second side of said wood veneer; a backing applying means for applying backing to said second side of said wood veneer having adhesive applied thereto by said adhesive applying means; and cutting means for cutting a selected portion of said wood veneer adhered to said backing.
Br~ef Description of the Drawinqs :. :
Figure l is a flow chart describing a method of `~
making finished wood samples in accordance with the present invention; `;.';~
Figures 2A and 2B are side views of an apparatus -~ :
for making finished wood samples in accordance with the : ~-25 present invention; `~
Figure: 3 is a perspective view of the veneer , dispensing means in accordance with the present invention;
;. : :Figures 4A and 4B are top views of backings to be ;:
.~ applied to a wood veneer in accordance with the present ~ :
: 30 invention;
. : Figures 5 and 7 are detailed views of the apparatus ~ ~
shown in Figure 2 including the slitting and cutting portions ~ :
.` of the apparatus;
,. .
:- ' 207639~ I
Figure 6 is a block diagram showing the control elements of the apparatus shown in Figure 2; --Figures 8A and 8B are finished wood samples producedby an apparatus and process in accordance with the present invention;
Figure 9 is a top cut away view of the apparatus of Figure 2 showinq portions of the veneer as guided between elements of the apparatus; and Figures 10 and ll are fra~nentary perspective views ~ ~
lO of veneer positioning guides in accordance with the present ~ -invention.
Figure 12 is a perspective view of the sprayer portion of the present invention. ;
::
Description of the Preferred Embodiments Figure 1 is a flow chart 10 fox the wood chip process as performed by the apparatus shown in Figures 2A
and 2B. The first step 14 is to feed a veneer roll (38 in Figure 2A) to the system. Typical widths of the wood veneer on the veneer roll range between approximately 0.5 inch and two inches (l9 - 50 mm), although a variety of dimensions could be used in accordance with the invention. Typically, the dimensions will be sufficiently small to allow samples to be generated which are easily portable. Each roll is mounted in a veneer dispensing means 40 such that the axle ~ 36 of roll 38 can rotate. Each veneer strip 42 is pulled .~ through the apparatus by gear drive (46 in Figure 2B) connected by belt 48 to driven pinch rolls 50 and 52.
Pinch rolls 56 and 60 in ~igure 2A introduce drag into the system to ensure that the veneer strip maintains ` the necessary tension for processing. A multiple number of veneer rolls may be fed into the system. The pinch rolls 56 ' and 60 apply a tension to each length of veneer fed to the ., 2~76~9S
WO91/12940 P~/US91/01203 system by means of a pneumatic tension applicator 64. The pneumatic tension applicator is controlled by tension control 68.
The veneer is guided through the first set of ~eneer guides 72 to a three-roll web controi system comprised of rolls 76, 78, and 80. The three-roll web control system ~
further increases the uniformity of the tension across the ~- -veneer, maintains that tension at the desired level, and impairs the tendency of the veneer to twist.
Between the pinch rolls and the web control rolls, the veneer is scanned by an optical signal scanner lO0. The optical signal scanner lO0 detects a break in the wood veneer (102), as may occur when a roll of veneer ends or is severed.
If the optical signal scanner detects that veneer is absent 15 while the apparatus is in operation, the scanner will send ~ ;~
a signal to control panel llO which will shut off the gear drive 46. In alternative embodiments of the apparatus, the optical signal scanner will detect breakage at any one or more of a number of veneer strips being processed by the system, and cause the stoppage of other functions, such as the spraying or the drying functions.
The veneer is then guided through a second set of veneer guides 84 to a sprayer 8~ positioned along the path of movement of the veneer. At the sprayer, a first surface of the wood veneer is sprayed with a suitable paint, stain, finish, or other treatment (step 18 in Figure l).
.The sprayer 88 includes a spray booth 92 which ~;prevents the sprayed wood treatment from entering the outside air. The spray nozzle 96 is fed by a spray tank lOl and ,30 sprays the desired treatmen~ substantially evenly over the wood veneer as it passes throu~h the spray booth.
Alternatively, a number of spray nozzles may be used in the spray booth, and may be separated by dividers. Use of .,,. :, .. ; ~ .
~ ~, : '` ' ., ; ~. ~ jl -` :
20~639~
WO9lll2940 PCT/US~l/01203 multiple nozzles permits the use of a variety of wood treatments simultaneously when a number of venee~ strips are fed to the spra~ booth in parallel. Alternatively, the nozzles may be lowered in the spray booth closer to the veneer instead of separating the nozzles by divider.
The rate of application of the wood treatment is controlled by a spray control 104. Air is pumped through the spray booth from the top of the spray booth by air blowers at heaters 154, 158 through vent 111. The air blowers push air down through the spray booth in the same direction as the spray such that excess treatment is collected at an excess treatment collection pan or reservoir 120. The collection pan 120 is connected to the spray booth in substantially airtight form and includes baffles 124 for improving the spray pattern within the spray booth, increasing the uniformity of the application of the treatment to the veneer The pan 120 is angled such that a reservoir of water 126 is kept in the bottom of the pan. This water collects heavier elements of the excess treatment and 20 particulate generated in the spray booth. The reservoir of ;
water 126 is periodically drained and suitably disposed of.
Other waste product from the spray booth not collected in the reservoir is pulled through exhaust pipe 128 mounted in substantially airtight engagement with the reservoir, through a two-stage filter 132, and ~Iown by blower 136 to the outside air at a level suitable for environmental requirements.
It is suggested that the spray hood 92 include a heat sensor 560 which will activate fire protection (such as a CO2 extinguisher) if a temperature indicating a fire in the spray hood is sensed.
The treated wood veneer is then guided by third and : fourth sets of veneer guides 150, 152 into the first heater 2076~95 ~
W091/~940 PCT/US91/Ol203 154. The veneer is pulled a distance x between the sprayer and the fir~t heater. The distance x is selected such that the treated veneer is exposed to a suitable flash-off period in which the treatment vapors evaporate from the veneer surface. Providing for such a flash-off period allows the solvents in the wood treatment to evaporate rather than be sealed in the treatment in the step of drying, thus minimizing the blistering that may occur from heating the veneer too soon after spraying. A typical distance for x is five feet, which would provide a flash-off period of thirty seconds if the veneer tape is traveling at approximately ten feet per minute.
The next step (step 22 in Figure l) is drying the veneer. To maximize control over the drying step, it is preferred that two heaters 154 and 158 be set up sequentially along the path of the wood veneer, as shown in Figure 2A.
The heaters are typically infrared heaters, although a variety of other stock or custom-designed heaters are suitable for the process. For example, steam or forced air heaters may also be appropriate. A two-heater sequence is used to provide an increased linear distance along which the veneer is dried, to allow for drying the wood veneer under the heat for a longer time at a lower temperature. Use of a relatively lower temperature over a longer time avoids twisting problems and the like as compared with a higher ., .
temperature, shorter system. In an alternative embodiment, however, a single heater may be suitable if it is a relatively long heater, since the wood veneer will be heated by such a heater for a longer time. However, use of multiple heaters allows for more precise control of temperatures . throughout the drying process.
After the veneer is dried, it is guided through a fourth set of veneer guides 162 to the glue applicator 164.
.,.. ~ ' ::~
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207 ~39~
WO91/l2940 ( PCT/US91/01203 '~
', The hot glue is applied to the backside of wood veneer 44 by a roller 166 (step 26 in Figure 1). The rolLer is driven by gear drive 170. The glue roller 166 sits in glue pan 174 ~which has a reservoir of hot glue 178. As the roller rotates, it picks up the hot glue from reservoir 178 and applies the glue to the backside of wood veneer 44. Excess glue applied to the back of wood veneer 44 is sc~raped off by glue scraper 182. ;
Typically, a relatively thin layer of glue is ~; 10 desired. Thus,~the syst m controls the amount of glue applied to the back of the adhesive. A typical temperature ~-for the glue is 400-450 degrees F, with a glue thickness of l/lO00 of an inch among the preferred values. ~ `~
Alternatively, the reservoir 178 may contain a ,, ~ , .
liquid, such as water, which is capable of activating a surface coating on the underside of the wood veneer to make `;~
the surface capable of adhering to the backing material.
Pre-pasted veneer may be used which does not adhere until water is applied to the surface.
Alternatively, prior to the step of glue application, the steps of spraying and/or drying may~ be repeated for further treatment of the veneer. For example, a stained wood veneer may be treated with one or both of a seaIer and top coat, especially for samples for ~indoor ~ ;
25 ~furniture and the like. These additional treatments may add such~properties as waterproofing, or add a protective varnish or other material to the veneer.
After glue is applied to the back of veneer 44, the ~ ` ' veneer is ready for receiving a paper backing~ Paper backing 30 is supplied in the form of a roll 186 rotatably mounted on ~h spool l90. The backing 194 is passed through a series of tension-controlling rollers 198; 202, 206. The backing is then adhered to the underside of veneer 44 through the - ~ : -, ~ .
207639~ 1 .
W091/12940 ~ f PCT/US91/01203 ~ ~
_9 _ application of tension at pinch rollers 210, 214. Tension is applied to the pinch rollers 210, 214 through ~ controlled r pneumatic system 218. The wood veneer, which has been treated, dried, and adhered to a backing, is guided through veneer guide 222 and pinch rollers 50, 52 to slitter assemhly 326 for longitudinal slitting as desired.
One aspect of the method and apparatus in accordance with the present invention is the proper cutting of the backed veneer chips. Typically, the backing applied to the wood veneer will be a paper backing having printed matter printed on its exposed side. This printed matter will typically include the name of the manufacturer or retailer from whom the wood treatment or wood product can be obtained.
Thus, it is very desirable that this printed matter appear professional, and that the wood samples be cut accurately such that the desired information printed on the backing is properly shown and oriented on each sample chip.
The veneer roll dispensing means is shown in more detail in Figure 3. Figure 3 shows a dispensing means 40 including a multi-roll holder 240. The holder includes axles 246 and 250 for holding veneer rolls 254 and 258. The system is capable of holding a number of rolls. The rolls are separated by roll separators 260 which are located such that each length of the veneer dispensed from the rolls is . 25 slightly separated from each adjacent length when the lengths enter the initial rollers 56 and 60.
Figures 4A and 4B show the appearance of the paper backing on the side which is applied to the wood veneer and thus which is not visible once the wood veneer length is cut.
The backing 280 and 284 includes optical trigger marks 288 : and 292. Typically, the printed backing will be white colored and the optical trigger marks will be black or another suitable high-contrast color. These marks are :!;
2~7~395 WO91~12940 PCT/US91/01203 , :
printed on the backing according to specified distance intervals, indicate the desired size of the backing for the wood sample chips, and correspond to the proper location of Ihe printed matter to be included on the other exposed side of the backing. ~igure 4A shows a single series of optical trigger marks, while Figure 4B shows a multiple number of ~ -such marks. Either format for optical trigger marks is suitable.
Figure 5 shows the cutting assembly 226 in greater detail. The slitter assembly 326 includes circular blades 330 which are opposed by roller 328. The backed veneer is slitted as it passes between the blades 330 and roller 328.
The slitted veneer is then passed through pinch rollers 340 and 342 to the lateral cutter 230. The slitted and cut veneer chips fall into a stacking slide 234, where they are substantially uniformly stacked for packaging and storage.
Alternatively, the slitter assembly 226 may be removed from use. For example, a card having a series of wood samples (each having similar or different treatments) may be produced if the slitter assembly is not used. Pivoting lever arm 327 moves the slitter from the backed veneer.
Figures 2B and 5 show the portion of the system `~
which includes the linear sensor 336. Ater the backing is applied to the veneer, it is passed through a series of . 25 rollers 50, 52. Roller 328 is mounted adjacent to the ; slitter~assembly 326 such that the veneer and backing is ~-~
slitted longitudinally. The slitted, adhered veneer 42 comprised of veneer length 44 and backing 194 is then moved -along a surface 33~ underneath the linear sensor 336. The 30 linear sensor 336 measures the actual linear distance -travelled by the backed veneer. In the embodiment shown, this function is performed by counting the revolutions of the linear sensor (roller) 336. The circumference of the roller 207639~
, . ~ .", .
W~91/t2~40 PCT/~S9l/012~3 ~
., --11-- ,:
is known. The number of revolutions is detected by known methods such as by use of an optical or magnetic revolution sensor.
The portion of the apparatus involving the application of the backing to the wood veneer and controllably cutting ~he samples will now be described in greater detail as shown in Figures 2B and 6. Figure 6 is a block diagram showing the elements of the cutting control system as well as other control elements. The control system includes an optical sensor 300 and a linear sensor 336 which are interconnected with a microprocessor 320. The backing 1~4 is mounted on roll 186 such that the optical trigger marks (288 and 292 in Figures 4A and 4B) are on the side of the backing ~96 which is exposed to a fiber optic reflective ~ ~ -scanner or other suitable optical scanner 300. The optical scanner or sensor 300 sends the signal indicating that the trigger mark has been detected to encoder 304, which processes the signal and forwards it to a central processor.
The count o~ the revolutions of linear sensor or roller 336 `~
is processed by encoder 340 and forwarded to the microprocessor panel 320.
The ~optical sensor 300 is shown connected to encoder 304. Encoder 304 converts the signal from the optical sensor 300 to an electrical signal readable at '~
' 25~ microprocessor 320 as indicative of the rate at which the backing 194 is ~dispensed. Encoder 304 provides a digital count corresponding to the time between sensings of the ; ~ opticaI trigger marks. The control system also includes a microprocessor 320 which receives the encoded counts derived . 30 from the optical sensor 300 and the linear sensor~(roller) 336 through optical encoder 304 and linear encoder 340.
The linear sensor 336 may be a roller or other -~
device which indicates physical movement of the backed ;
,., ~ .
;~ ~
: 1 ~
!. .~ , ~.
2~763~
( ' veneer. The linear encoder 340 converts tha signal received from linear sensor 336 into an electric sign~l readable at microprocessor 320. This signal will correspond to the actual rate of movement of the veneer and backing. This actual-movement rate is detected to enable repeated readjustment of the counter as it receives the trigger signal from the optical sensor and encoder 300, 304. For example, the known distance ~etween the optical scanner marks is stored at the microprocessor. The optical scanner will supply the optical encoder with a reset (trigger~ value each time the optical trigger mar~ is sensed. The microprocessor will calibrate the receipt of these trigger signals in accordance with the actual distance travelled by the veneer and bac~ing as indicated by the linear sensor (roller). The counter may be manually adjusted in case there is some slack in a system which indicates that the rate of movement of the backing at ~he location of the optical scanner 300 is not the same as the speed of the backing at roller 336 when the veneer and backing is about to be cut. The use of both an optical scanner and a linear movement measurement means allows for more accura~e cutting of the wood sample chips at a variety of speeds, even at higher speeds where the potential error caused by time lags and tension imperfections increases.
~Use of the dual-sensor system means that the optical sensor need not be repeatedly adjusted at the optical encoder.
~ hen the signals from the optical and linear sensors are received and processed by the microprocessor, a cutting signal i5 sent to cutter control (360 in Figure 6) which causes cutter 230 to cut the sample. Figure 7 is a more detailed view of the cutter. The pneumatic-controlled piston activator 404 receives a cutting signal from cutter control (360 in Figure 6). When the activation signal is received, `, piston 400 is activated to push blade pressuxe applicator 436 . . .
7639~ :
WO91/12940 PCT/US91/012~3 down. The blade pressure applicator 43~ has projections 425, 431 having rollers 433, 435 which engage with upper blade mount 426. The piston activator 404 is mounted on cross-brace 408. The activation of piston 404 presses blade pressure applicator 436 downward such that the upper blade mount 426 and upper blade 428 are pushed against ~he stationary lower blade mount 430 and lower blade 432. The veneer and backing slide between the upper and lower blades and are cut at this point. The side braces 412 and 416 include guides 420 and 424 for ensuring that the guillotine ` blades remain in proper alignment during the cutting process.
Typically, the backed veneer pieces will be cut in approximately two inch (50 mm) incremen~s or other increments suitable ~or generating samples that are relatively easy to transport and comparable in size to typical paint samples currently used. However, the invention is capable of use for a wide variety of sizes.
Alternatively, the cutter 230 will not be used.
Instead, the backed or unbacked veneer is re-wound, uncut, onto another roll. Such processing may be preferred for uses other than as sample chips, such as veneer trim to be applied to furniture.
The control panel (110 in Figures 2A and 2B) includes an AC motor speed control 550 which allows adjustment of the line speed through controlling the gear ~ drive 46. The control panel also includes cutter control .. ~ 360 and control of the oven ~emperature 440. Where two heaters are used~ as in the preferred embodiment, the oven control will comprise two oven ~emperature controls.
~,~ 30 Figures 8A and 8B show finished wood sample chips in accordance with the present invention. Figure 8A shows . a cut sample of wood veneer 442 on backing 494. The wood veneer has been treated, dried, and cut to the specified ... .
~'~
' %0~6395 3 WO91/12940 ( ( PCT/US9l/01203 size. The backing 494 is available for displaying printed matter. Figure 8B shows a variation of a sample~-~anufactured in accordance with the present system which shows a series of six samples of wood veneer 446, 448, 450, 452, 454, 456, each havlng a different paint, stain or other treatment, and all mounted on the same backing 458. The sample shown in Figure 8B is also cut to specification. Any number of samples, and a variety of veneer and backing shapes and sizes may be selected.
10 ~ Figure 9 is a top view of the guidance portion of the wood sample manufacturing system. A number of dispensed wood veneer strips 500 are processed through pinch roller 60 and scanned by optical scanner 100 to detact whether any of the wood veneer strips is broken. A series of guides 72 guide the strips from the optical scanner to the pinch rollers (not shown). From there the veneer strips pass through another set of veneer guides 84 into the sprayer chamber 92. From the sprayer chamber, the veneer strips are passed through two more series of veneer guides 150, 152 to the heaters 154, 158. The veneer strips then pass from heater 158 through another set of veneer guides 162 and on through the glue application (not shown). After the glue is applied to the back of the veneer, the veneer is passed through another veneer guide 165. From here, the veneer is guided through the pinch rollers (not shown) at which the ~acking is applied. After that, the backed veneer is guided through a wide, single guide 222 through the slitting and cutting process.
;~ Figures 10 and 11 show the veneer guides as used by the system. Figure 11 represents the guides used at veneer guides 72, 84, 150, 152, 162, and 165 of Figure 9. The guides include a horizontal base portion 502 and a series of vertical guide portions 504, 506 corresponding to each length 1207639~ ~ ~
WO91/12940 P~T/USgl/01203 of veneer to be guided. Figure 10 shows a veneer guide corresponding to veneer guide 222 of Figure 9. Unlike the veneer guide in Figure 11, which guides each individual strip of wood veneer as it is processed, the guide shown in Figure -10 guides the entire set of wood veneer strips 508 after the backing has been applied. Thus, only vertical guide portions 510, 512 are used regardless of the number of veneer lengths.
In an alternative embodiment, the slitter assembly 326 is omitted and perforated backing paper is used. The ~ -a perforations are placed on the stock paper prior to applying the backing to the wood veneer, and the backed wood veneer may be separated by hand rather than by use of a slitter.
Alternative embodiments of the invention include ~-the use of multiple sprayers, each potentially supplied with a different color, stain,~or other treatment. When multiple veneer rolls are used to feed the system, each may be treated differently and a single unit comprising one piece of backing and a group of veneer samples, each with a different color or stain, may be created.
20Additional alternative embodiments include the use of additional spray stations near the end of the system for applying a sealer and/or top coat.
The system described herein relates to a method and apparatus for making wood sample chips. However, substantial 25~ portions~ of the process and apparatus described are also adaptable to a system for manufacturing wood veneer slats for .` ~ mini blinds, veneer trim for furniture, and other finished wood products. For example, treated wood slats for mini~
blinds may involve the steps of directing untreated wood ~30 lengths through treatment applying and drying means in ~accordance~with the invention. Such slats may be pre-cut or dispensed in longer sections for cutting in accordance with the present invention. Such slats may be adhered to a sùitable backing material, such as aluminum. ~ ~
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, ~ `
:
Backqround o~ the Invention The present invention relates generally to ~inished wood samples, and more particularly to a method and apparatus for making finished wood samples involving a roll of wood veneer which is treated, adhered to a backing, and cut.
- It is customary to display treatments for wood, such as various finishes for wood furniture, paints and s~ains for ~ -wood, etc., by means of relatively bulky wood samples. For example, such wood samples often take the form of samples several inches in width and length and 1/8 inch or more in thickness. Such samples are occasionally connected ~y means of a chain interconnecting the samples via a hole drilled through each of the samples. Such wood treatment sample sets are bulky, too expensive to typically provide to a substantial number of customers or potential buyers without charge, and difficult to reproduce quickly and within tight tolerances. Other samples may be connected by a staple or other fastening means in a corner, which may result in deterioration, color mixing, or "polishing" of the samples when they rub together. One result of the use of these 25 samples is that customers will be unable to bring the samples ~ -from a store to their residence or business in which the wood product may be used. As a result, customers wiIl have ~` difficulty matching possible stains, paints, or other .treatments with carpeting or other floor, wall, or cei~ling ~;`. 30 surfaces in a desired manner.
It is desirable to have a wood sample apparatus and method which overcomes the above disadvantages and allows a ` ~large volume of wood veneer to be processed quickly with a `~
. minimum of labor. Other desirable features of such a system 35~ is that the system is environmentally safe, including the reuse of air from the heater in the spraying system. It is `
desirable that high ~uality produc~s be produced through the . ,~
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WO 91/12g40 ' PCr/US91/01203 substantially uniform staining of a large volume of samples, and because the process may be adjusted in terms of time, temperature, etc. to maintain this uniformity. It is also desirable that the system provide high precision cutting of the samples in a uniform fashion and that the system provide for the showing of the appearance of wood under various treatments by using a wood sample substantially thinner (and thus cheaper) than has been heretofore necessary. The incorporation into the method and apparatus of printing on backing applied to the veneer would improve the accuracy, quality and appearance of the sample chips and increases the promotional potential of the samples. For example, it is desired that the samples be easily distri~uted to consumers at point of purchase displays and be inviting to consumers because the samples can be manufactured such that they are small, portable, easy to use, and cheap. The continuous-process aspect of the such a method and apparatus saves manufacturing time and minimizes waste.
SummarY of the Invention There is provided, in accordance with the invention, . .
a method and apparatus for making finished wood samples which reduce or eliminate the disadvantages suggested above. More particularly, a process in accordance with the present invention includes the steps of obtaining a length of untreated wood veneer, spraying a first side of the wood veneer length with a pre-selected treatment, drying the wood veneer, obtaining a length of backing for said wood veneer Iength, adhering isaid backing to a second side of said wood veneer length, and cutting a portion of the adhered veneer ` length and backing to a desired sample size.
.; . .
An apparatus in accordance with the present ~ :
invention includes a veneer dispensing means for mounting a -'.; .:
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2~76~9~
WO91/12940 ~ PCT/US91/01203 roll of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll; a veneer directing means for directing the movemen~ of the veneer dispensed by the veneer dispensing means through a treatment applying means, a treated veneer drying means, an adhesive applying means, a backing applying means, and a cutting means; a treatment applying means for applying a wood treatment to a first side of said wood veneer dispens2d from said dispensing means and dixected by said veneer directing means; a treated veneer drying means for dryin~ veneer treated at said treatment applying means; an adhesive : applying means for applying adhesive to a second side of said wood veneer; a backing applying means for applying backing to said second side of said wood veneer having adhesive applied thereto by said adhesive applying means; and cutting means for cutting a selected portion of said wood veneer adhered to said backing.
Br~ef Description of the Drawinqs :. :
Figure l is a flow chart describing a method of `~
making finished wood samples in accordance with the present invention; `;.';~
Figures 2A and 2B are side views of an apparatus -~ :
for making finished wood samples in accordance with the : ~-25 present invention; `~
Figure: 3 is a perspective view of the veneer , dispensing means in accordance with the present invention;
;. : :Figures 4A and 4B are top views of backings to be ;:
.~ applied to a wood veneer in accordance with the present ~ :
: 30 invention;
. : Figures 5 and 7 are detailed views of the apparatus ~ ~
shown in Figure 2 including the slitting and cutting portions ~ :
.` of the apparatus;
,. .
:- ' 207639~ I
Figure 6 is a block diagram showing the control elements of the apparatus shown in Figure 2; --Figures 8A and 8B are finished wood samples producedby an apparatus and process in accordance with the present invention;
Figure 9 is a top cut away view of the apparatus of Figure 2 showinq portions of the veneer as guided between elements of the apparatus; and Figures 10 and ll are fra~nentary perspective views ~ ~
lO of veneer positioning guides in accordance with the present ~ -invention.
Figure 12 is a perspective view of the sprayer portion of the present invention. ;
::
Description of the Preferred Embodiments Figure 1 is a flow chart 10 fox the wood chip process as performed by the apparatus shown in Figures 2A
and 2B. The first step 14 is to feed a veneer roll (38 in Figure 2A) to the system. Typical widths of the wood veneer on the veneer roll range between approximately 0.5 inch and two inches (l9 - 50 mm), although a variety of dimensions could be used in accordance with the invention. Typically, the dimensions will be sufficiently small to allow samples to be generated which are easily portable. Each roll is mounted in a veneer dispensing means 40 such that the axle ~ 36 of roll 38 can rotate. Each veneer strip 42 is pulled .~ through the apparatus by gear drive (46 in Figure 2B) connected by belt 48 to driven pinch rolls 50 and 52.
Pinch rolls 56 and 60 in ~igure 2A introduce drag into the system to ensure that the veneer strip maintains ` the necessary tension for processing. A multiple number of veneer rolls may be fed into the system. The pinch rolls 56 ' and 60 apply a tension to each length of veneer fed to the ., 2~76~9S
WO91/12940 P~/US91/01203 system by means of a pneumatic tension applicator 64. The pneumatic tension applicator is controlled by tension control 68.
The veneer is guided through the first set of ~eneer guides 72 to a three-roll web controi system comprised of rolls 76, 78, and 80. The three-roll web control system ~
further increases the uniformity of the tension across the ~- -veneer, maintains that tension at the desired level, and impairs the tendency of the veneer to twist.
Between the pinch rolls and the web control rolls, the veneer is scanned by an optical signal scanner lO0. The optical signal scanner lO0 detects a break in the wood veneer (102), as may occur when a roll of veneer ends or is severed.
If the optical signal scanner detects that veneer is absent 15 while the apparatus is in operation, the scanner will send ~ ;~
a signal to control panel llO which will shut off the gear drive 46. In alternative embodiments of the apparatus, the optical signal scanner will detect breakage at any one or more of a number of veneer strips being processed by the system, and cause the stoppage of other functions, such as the spraying or the drying functions.
The veneer is then guided through a second set of veneer guides 84 to a sprayer 8~ positioned along the path of movement of the veneer. At the sprayer, a first surface of the wood veneer is sprayed with a suitable paint, stain, finish, or other treatment (step 18 in Figure l).
.The sprayer 88 includes a spray booth 92 which ~;prevents the sprayed wood treatment from entering the outside air. The spray nozzle 96 is fed by a spray tank lOl and ,30 sprays the desired treatmen~ substantially evenly over the wood veneer as it passes throu~h the spray booth.
Alternatively, a number of spray nozzles may be used in the spray booth, and may be separated by dividers. Use of .,,. :, .. ; ~ .
~ ~, : '` ' ., ; ~. ~ jl -` :
20~639~
WO9lll2940 PCT/US~l/01203 multiple nozzles permits the use of a variety of wood treatments simultaneously when a number of venee~ strips are fed to the spra~ booth in parallel. Alternatively, the nozzles may be lowered in the spray booth closer to the veneer instead of separating the nozzles by divider.
The rate of application of the wood treatment is controlled by a spray control 104. Air is pumped through the spray booth from the top of the spray booth by air blowers at heaters 154, 158 through vent 111. The air blowers push air down through the spray booth in the same direction as the spray such that excess treatment is collected at an excess treatment collection pan or reservoir 120. The collection pan 120 is connected to the spray booth in substantially airtight form and includes baffles 124 for improving the spray pattern within the spray booth, increasing the uniformity of the application of the treatment to the veneer The pan 120 is angled such that a reservoir of water 126 is kept in the bottom of the pan. This water collects heavier elements of the excess treatment and 20 particulate generated in the spray booth. The reservoir of ;
water 126 is periodically drained and suitably disposed of.
Other waste product from the spray booth not collected in the reservoir is pulled through exhaust pipe 128 mounted in substantially airtight engagement with the reservoir, through a two-stage filter 132, and ~Iown by blower 136 to the outside air at a level suitable for environmental requirements.
It is suggested that the spray hood 92 include a heat sensor 560 which will activate fire protection (such as a CO2 extinguisher) if a temperature indicating a fire in the spray hood is sensed.
The treated wood veneer is then guided by third and : fourth sets of veneer guides 150, 152 into the first heater 2076~95 ~
W091/~940 PCT/US91/Ol203 154. The veneer is pulled a distance x between the sprayer and the fir~t heater. The distance x is selected such that the treated veneer is exposed to a suitable flash-off period in which the treatment vapors evaporate from the veneer surface. Providing for such a flash-off period allows the solvents in the wood treatment to evaporate rather than be sealed in the treatment in the step of drying, thus minimizing the blistering that may occur from heating the veneer too soon after spraying. A typical distance for x is five feet, which would provide a flash-off period of thirty seconds if the veneer tape is traveling at approximately ten feet per minute.
The next step (step 22 in Figure l) is drying the veneer. To maximize control over the drying step, it is preferred that two heaters 154 and 158 be set up sequentially along the path of the wood veneer, as shown in Figure 2A.
The heaters are typically infrared heaters, although a variety of other stock or custom-designed heaters are suitable for the process. For example, steam or forced air heaters may also be appropriate. A two-heater sequence is used to provide an increased linear distance along which the veneer is dried, to allow for drying the wood veneer under the heat for a longer time at a lower temperature. Use of a relatively lower temperature over a longer time avoids twisting problems and the like as compared with a higher ., .
temperature, shorter system. In an alternative embodiment, however, a single heater may be suitable if it is a relatively long heater, since the wood veneer will be heated by such a heater for a longer time. However, use of multiple heaters allows for more precise control of temperatures . throughout the drying process.
After the veneer is dried, it is guided through a fourth set of veneer guides 162 to the glue applicator 164.
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207 ~39~
WO91/l2940 ( PCT/US91/01203 '~
', The hot glue is applied to the backside of wood veneer 44 by a roller 166 (step 26 in Figure 1). The rolLer is driven by gear drive 170. The glue roller 166 sits in glue pan 174 ~which has a reservoir of hot glue 178. As the roller rotates, it picks up the hot glue from reservoir 178 and applies the glue to the backside of wood veneer 44. Excess glue applied to the back of wood veneer 44 is sc~raped off by glue scraper 182. ;
Typically, a relatively thin layer of glue is ~; 10 desired. Thus,~the syst m controls the amount of glue applied to the back of the adhesive. A typical temperature ~-for the glue is 400-450 degrees F, with a glue thickness of l/lO00 of an inch among the preferred values. ~ `~
Alternatively, the reservoir 178 may contain a ,, ~ , .
liquid, such as water, which is capable of activating a surface coating on the underside of the wood veneer to make `;~
the surface capable of adhering to the backing material.
Pre-pasted veneer may be used which does not adhere until water is applied to the surface.
Alternatively, prior to the step of glue application, the steps of spraying and/or drying may~ be repeated for further treatment of the veneer. For example, a stained wood veneer may be treated with one or both of a seaIer and top coat, especially for samples for ~indoor ~ ;
25 ~furniture and the like. These additional treatments may add such~properties as waterproofing, or add a protective varnish or other material to the veneer.
After glue is applied to the back of veneer 44, the ~ ` ' veneer is ready for receiving a paper backing~ Paper backing 30 is supplied in the form of a roll 186 rotatably mounted on ~h spool l90. The backing 194 is passed through a series of tension-controlling rollers 198; 202, 206. The backing is then adhered to the underside of veneer 44 through the - ~ : -, ~ .
207639~ 1 .
W091/12940 ~ f PCT/US91/01203 ~ ~
_9 _ application of tension at pinch rollers 210, 214. Tension is applied to the pinch rollers 210, 214 through ~ controlled r pneumatic system 218. The wood veneer, which has been treated, dried, and adhered to a backing, is guided through veneer guide 222 and pinch rollers 50, 52 to slitter assemhly 326 for longitudinal slitting as desired.
One aspect of the method and apparatus in accordance with the present invention is the proper cutting of the backed veneer chips. Typically, the backing applied to the wood veneer will be a paper backing having printed matter printed on its exposed side. This printed matter will typically include the name of the manufacturer or retailer from whom the wood treatment or wood product can be obtained.
Thus, it is very desirable that this printed matter appear professional, and that the wood samples be cut accurately such that the desired information printed on the backing is properly shown and oriented on each sample chip.
The veneer roll dispensing means is shown in more detail in Figure 3. Figure 3 shows a dispensing means 40 including a multi-roll holder 240. The holder includes axles 246 and 250 for holding veneer rolls 254 and 258. The system is capable of holding a number of rolls. The rolls are separated by roll separators 260 which are located such that each length of the veneer dispensed from the rolls is . 25 slightly separated from each adjacent length when the lengths enter the initial rollers 56 and 60.
Figures 4A and 4B show the appearance of the paper backing on the side which is applied to the wood veneer and thus which is not visible once the wood veneer length is cut.
The backing 280 and 284 includes optical trigger marks 288 : and 292. Typically, the printed backing will be white colored and the optical trigger marks will be black or another suitable high-contrast color. These marks are :!;
2~7~395 WO91~12940 PCT/US91/01203 , :
printed on the backing according to specified distance intervals, indicate the desired size of the backing for the wood sample chips, and correspond to the proper location of Ihe printed matter to be included on the other exposed side of the backing. ~igure 4A shows a single series of optical trigger marks, while Figure 4B shows a multiple number of ~ -such marks. Either format for optical trigger marks is suitable.
Figure 5 shows the cutting assembly 226 in greater detail. The slitter assembly 326 includes circular blades 330 which are opposed by roller 328. The backed veneer is slitted as it passes between the blades 330 and roller 328.
The slitted veneer is then passed through pinch rollers 340 and 342 to the lateral cutter 230. The slitted and cut veneer chips fall into a stacking slide 234, where they are substantially uniformly stacked for packaging and storage.
Alternatively, the slitter assembly 226 may be removed from use. For example, a card having a series of wood samples (each having similar or different treatments) may be produced if the slitter assembly is not used. Pivoting lever arm 327 moves the slitter from the backed veneer.
Figures 2B and 5 show the portion of the system `~
which includes the linear sensor 336. Ater the backing is applied to the veneer, it is passed through a series of . 25 rollers 50, 52. Roller 328 is mounted adjacent to the ; slitter~assembly 326 such that the veneer and backing is ~-~
slitted longitudinally. The slitted, adhered veneer 42 comprised of veneer length 44 and backing 194 is then moved -along a surface 33~ underneath the linear sensor 336. The 30 linear sensor 336 measures the actual linear distance -travelled by the backed veneer. In the embodiment shown, this function is performed by counting the revolutions of the linear sensor (roller) 336. The circumference of the roller 207639~
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W~91/t2~40 PCT/~S9l/012~3 ~
., --11-- ,:
is known. The number of revolutions is detected by known methods such as by use of an optical or magnetic revolution sensor.
The portion of the apparatus involving the application of the backing to the wood veneer and controllably cutting ~he samples will now be described in greater detail as shown in Figures 2B and 6. Figure 6 is a block diagram showing the elements of the cutting control system as well as other control elements. The control system includes an optical sensor 300 and a linear sensor 336 which are interconnected with a microprocessor 320. The backing 1~4 is mounted on roll 186 such that the optical trigger marks (288 and 292 in Figures 4A and 4B) are on the side of the backing ~96 which is exposed to a fiber optic reflective ~ ~ -scanner or other suitable optical scanner 300. The optical scanner or sensor 300 sends the signal indicating that the trigger mark has been detected to encoder 304, which processes the signal and forwards it to a central processor.
The count o~ the revolutions of linear sensor or roller 336 `~
is processed by encoder 340 and forwarded to the microprocessor panel 320.
The ~optical sensor 300 is shown connected to encoder 304. Encoder 304 converts the signal from the optical sensor 300 to an electrical signal readable at '~
' 25~ microprocessor 320 as indicative of the rate at which the backing 194 is ~dispensed. Encoder 304 provides a digital count corresponding to the time between sensings of the ; ~ opticaI trigger marks. The control system also includes a microprocessor 320 which receives the encoded counts derived . 30 from the optical sensor 300 and the linear sensor~(roller) 336 through optical encoder 304 and linear encoder 340.
The linear sensor 336 may be a roller or other -~
device which indicates physical movement of the backed ;
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2~763~
( ' veneer. The linear encoder 340 converts tha signal received from linear sensor 336 into an electric sign~l readable at microprocessor 320. This signal will correspond to the actual rate of movement of the veneer and backing. This actual-movement rate is detected to enable repeated readjustment of the counter as it receives the trigger signal from the optical sensor and encoder 300, 304. For example, the known distance ~etween the optical scanner marks is stored at the microprocessor. The optical scanner will supply the optical encoder with a reset (trigger~ value each time the optical trigger mar~ is sensed. The microprocessor will calibrate the receipt of these trigger signals in accordance with the actual distance travelled by the veneer and bac~ing as indicated by the linear sensor (roller). The counter may be manually adjusted in case there is some slack in a system which indicates that the rate of movement of the backing at ~he location of the optical scanner 300 is not the same as the speed of the backing at roller 336 when the veneer and backing is about to be cut. The use of both an optical scanner and a linear movement measurement means allows for more accura~e cutting of the wood sample chips at a variety of speeds, even at higher speeds where the potential error caused by time lags and tension imperfections increases.
~Use of the dual-sensor system means that the optical sensor need not be repeatedly adjusted at the optical encoder.
~ hen the signals from the optical and linear sensors are received and processed by the microprocessor, a cutting signal i5 sent to cutter control (360 in Figure 6) which causes cutter 230 to cut the sample. Figure 7 is a more detailed view of the cutter. The pneumatic-controlled piston activator 404 receives a cutting signal from cutter control (360 in Figure 6). When the activation signal is received, `, piston 400 is activated to push blade pressuxe applicator 436 . . .
7639~ :
WO91/12940 PCT/US91/012~3 down. The blade pressure applicator 43~ has projections 425, 431 having rollers 433, 435 which engage with upper blade mount 426. The piston activator 404 is mounted on cross-brace 408. The activation of piston 404 presses blade pressure applicator 436 downward such that the upper blade mount 426 and upper blade 428 are pushed against ~he stationary lower blade mount 430 and lower blade 432. The veneer and backing slide between the upper and lower blades and are cut at this point. The side braces 412 and 416 include guides 420 and 424 for ensuring that the guillotine ` blades remain in proper alignment during the cutting process.
Typically, the backed veneer pieces will be cut in approximately two inch (50 mm) incremen~s or other increments suitable ~or generating samples that are relatively easy to transport and comparable in size to typical paint samples currently used. However, the invention is capable of use for a wide variety of sizes.
Alternatively, the cutter 230 will not be used.
Instead, the backed or unbacked veneer is re-wound, uncut, onto another roll. Such processing may be preferred for uses other than as sample chips, such as veneer trim to be applied to furniture.
The control panel (110 in Figures 2A and 2B) includes an AC motor speed control 550 which allows adjustment of the line speed through controlling the gear ~ drive 46. The control panel also includes cutter control .. ~ 360 and control of the oven ~emperature 440. Where two heaters are used~ as in the preferred embodiment, the oven control will comprise two oven ~emperature controls.
~,~ 30 Figures 8A and 8B show finished wood sample chips in accordance with the present invention. Figure 8A shows . a cut sample of wood veneer 442 on backing 494. The wood veneer has been treated, dried, and cut to the specified ... .
~'~
' %0~6395 3 WO91/12940 ( ( PCT/US9l/01203 size. The backing 494 is available for displaying printed matter. Figure 8B shows a variation of a sample~-~anufactured in accordance with the present system which shows a series of six samples of wood veneer 446, 448, 450, 452, 454, 456, each havlng a different paint, stain or other treatment, and all mounted on the same backing 458. The sample shown in Figure 8B is also cut to specification. Any number of samples, and a variety of veneer and backing shapes and sizes may be selected.
10 ~ Figure 9 is a top view of the guidance portion of the wood sample manufacturing system. A number of dispensed wood veneer strips 500 are processed through pinch roller 60 and scanned by optical scanner 100 to detact whether any of the wood veneer strips is broken. A series of guides 72 guide the strips from the optical scanner to the pinch rollers (not shown). From there the veneer strips pass through another set of veneer guides 84 into the sprayer chamber 92. From the sprayer chamber, the veneer strips are passed through two more series of veneer guides 150, 152 to the heaters 154, 158. The veneer strips then pass from heater 158 through another set of veneer guides 162 and on through the glue application (not shown). After the glue is applied to the back of the veneer, the veneer is passed through another veneer guide 165. From here, the veneer is guided through the pinch rollers (not shown) at which the ~acking is applied. After that, the backed veneer is guided through a wide, single guide 222 through the slitting and cutting process.
;~ Figures 10 and 11 show the veneer guides as used by the system. Figure 11 represents the guides used at veneer guides 72, 84, 150, 152, 162, and 165 of Figure 9. The guides include a horizontal base portion 502 and a series of vertical guide portions 504, 506 corresponding to each length 1207639~ ~ ~
WO91/12940 P~T/USgl/01203 of veneer to be guided. Figure 10 shows a veneer guide corresponding to veneer guide 222 of Figure 9. Unlike the veneer guide in Figure 11, which guides each individual strip of wood veneer as it is processed, the guide shown in Figure -10 guides the entire set of wood veneer strips 508 after the backing has been applied. Thus, only vertical guide portions 510, 512 are used regardless of the number of veneer lengths.
In an alternative embodiment, the slitter assembly 326 is omitted and perforated backing paper is used. The ~ -a perforations are placed on the stock paper prior to applying the backing to the wood veneer, and the backed wood veneer may be separated by hand rather than by use of a slitter.
Alternative embodiments of the invention include ~-the use of multiple sprayers, each potentially supplied with a different color, stain,~or other treatment. When multiple veneer rolls are used to feed the system, each may be treated differently and a single unit comprising one piece of backing and a group of veneer samples, each with a different color or stain, may be created.
20Additional alternative embodiments include the use of additional spray stations near the end of the system for applying a sealer and/or top coat.
The system described herein relates to a method and apparatus for making wood sample chips. However, substantial 25~ portions~ of the process and apparatus described are also adaptable to a system for manufacturing wood veneer slats for .` ~ mini blinds, veneer trim for furniture, and other finished wood products. For example, treated wood slats for mini~
blinds may involve the steps of directing untreated wood ~30 lengths through treatment applying and drying means in ~accordance~with the invention. Such slats may be pre-cut or dispensed in longer sections for cutting in accordance with the present invention. Such slats may be adhered to a sùitable backing material, such as aluminum. ~ ~
, ~,:, :: ~.
, ~ `
:
Claims (37)
1. A method for generating treated wood samples comprising:
a) obtaining a length of wood veneer;
b) spraying a first side of the wood veneer length with a preselected treatment;
c) drying the wood veneer;
d) obtaining a length of backing for said wood veneer length;
e) adhering said length of backing to a second side of said wood veneer length; and f) cutting a portion of the adhered veneer length and backing to a desired sample size.
a) obtaining a length of wood veneer;
b) spraying a first side of the wood veneer length with a preselected treatment;
c) drying the wood veneer;
d) obtaining a length of backing for said wood veneer length;
e) adhering said length of backing to a second side of said wood veneer length; and f) cutting a portion of the adhered veneer length and backing to a desired sample size.
2. A method for generating treated wood samples comprising:
a) obtaining a section of wood veneer having a length substantially greater than its width;
b) moving the wood veneer section through a spraying means for spraying a wood treatment on a first side of the wood veneer;
c) spraying said first side of the wood veneer as it moves through said spraying means;
d) moving the sprayed wood veneer through a drying means for drying the sprayed wood veneer;
e) applying an adhesive to a second side of the wood veneer:
f) adhering a backing material capable of receiving printed matter to said second side of the wood veneer; and g) cutting a portion of said adhered wood veneer and backing material to a desired sample size.
3. A method in accordance with claim 2 wherein the obtained section of wood veneer is in the form of a roll of wood veneer.
a) obtaining a section of wood veneer having a length substantially greater than its width;
b) moving the wood veneer section through a spraying means for spraying a wood treatment on a first side of the wood veneer;
c) spraying said first side of the wood veneer as it moves through said spraying means;
d) moving the sprayed wood veneer through a drying means for drying the sprayed wood veneer;
e) applying an adhesive to a second side of the wood veneer:
f) adhering a backing material capable of receiving printed matter to said second side of the wood veneer; and g) cutting a portion of said adhered wood veneer and backing material to a desired sample size.
3. A method in accordance with claim 2 wherein the obtained section of wood veneer is in the form of a roll of wood veneer.
3. A method in accordance with claim 2 wherein the obtained section of wood veneer is in the form of a roll of wood veneer.
4. A method in accordance with claim 2 wherein the step of cutting a portion of said adhered wood veneer and backing material to a desired sample size further comprises slitting the wood veneer and backing material longitudinally between adjacent lengths of wood veneer.
5. A method in accordance with claim 2 wherein the step of cutting a portion of said adhered wood veneer and backing material to a desired sample size comprises cutting the wood veneer and backing material laterally.
6. A method in accordance with claim 2 wherein the step of cutting a portion of said adhered wood veneer and backing material to a desired sample size comprises the steps of:
i) providing an electrical signal to a microprocessor which is indicative of the rate of movement of the wood veneer and backing material;
ii) providing data at the microprocessor indicative of a desired length of the wood veneer and backing material between cuts; and iii) controlling the cutting of the wood veneer and backing material with a signal generated by the microprocessor responsive to said electrical signal and data.
i) providing an electrical signal to a microprocessor which is indicative of the rate of movement of the wood veneer and backing material;
ii) providing data at the microprocessor indicative of a desired length of the wood veneer and backing material between cuts; and iii) controlling the cutting of the wood veneer and backing material with a signal generated by the microprocessor responsive to said electrical signal and data.
7. A method in accordance with claim 2 further comprising the steps of first and second h) placing the wood veneer and backing material between a pair of rollers; and i) driving at least one of the rollers with a motor such that the wood veneer and backing material is drawn between the rollers.
8. A method in accordance with claim 2 wherein the step of applying an adhesive to a second side of the wood veneer comprises the steps of:
i) mounting a rotatable adhesive-applying roller in a reservoir of adhesive such that a top portion of said roller is above the upper surface of the reservoir and such that the roller rolls when a length of wood veneer is drawn across the top portion of the roller; and ii) drawing the wood veneer across the top of said roller such that the second side of the wood veneer is in contact with the adhesive on said roller.
i) mounting a rotatable adhesive-applying roller in a reservoir of adhesive such that a top portion of said roller is above the upper surface of the reservoir and such that the roller rolls when a length of wood veneer is drawn across the top portion of the roller; and ii) drawing the wood veneer across the top of said roller such that the second side of the wood veneer is in contact with the adhesive on said roller.
9. A method in accordance with claim 2 wherein the step of adhering a backing material capable of receiving printed matter to said second side of the wood veneer comprises the step of drawing the backing material and wood veneer through a pair of pinch rollers such that said second side of the wood veneer is pressed into contact with said backing material.
10. A method of substantially continuously generating a set of wood samples comprising the steps of:
a) mounting a dispenser for a length of wood veneer such that the wood veneer may be continuously removed from the dispenser to a second location;
b) applying an adhesive to a second side of said wood veneer with an adhesive applicator means for applying an adhesive to a wood surface;
c) adhering a backing suitable for displaying printed matter to said second side of said wood veneer; and d) cutting a portion of said adhered wood veneer and backing material to a desired sample size.
a) mounting a dispenser for a length of wood veneer such that the wood veneer may be continuously removed from the dispenser to a second location;
b) applying an adhesive to a second side of said wood veneer with an adhesive applicator means for applying an adhesive to a wood surface;
c) adhering a backing suitable for displaying printed matter to said second side of said wood veneer; and d) cutting a portion of said adhered wood veneer and backing material to a desired sample size.
11. A method in accordance with claim 10 further comprising the steps of:
e) spraying said wood veneer with a spraying means for spraying a treatment on a wood surface positioned such that a treatment sprayed by said spraying means contacts a first surface of said wood veneer as the wood veneer is removed from said roll to said second location; and f) drying said wood veneer with a drying means for selectively drying a treated wood surface positioned to receive wood veneer sprayed by said spraying means.
e) spraying said wood veneer with a spraying means for spraying a treatment on a wood surface positioned such that a treatment sprayed by said spraying means contacts a first surface of said wood veneer as the wood veneer is removed from said roll to said second location; and f) drying said wood veneer with a drying means for selectively drying a treated wood surface positioned to receive wood veneer sprayed by said spraying means.
12. An apparatus for making treated wood samples comprising:
a) a veneer dispensing means for mounting a roll of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll;
b) a veneer directing means for directing the movement of the veneer dispensed by the veneer dispensing means through a treatment applying means, a treated veneer drying means, an adhesive applying means, a backing applying means, and a cutting means;
c) a treatment applying means for applying a wood treatment to a first side of said wood veneer dispensed from said dispensing means and directed by said veneer directing means and positioned along the path of movement of the veneer dispensed from said veneer dispensing means;
d) a treated veneer drying means for drying the first side of said wood veneer treated at said treatment i) optical sensor means for optically sensing and measuring linear movement of the backing material and providing an electrical signal to the cutter control means indicative of such movement; and ii) linear sensing means for physically sensing movement of the wood veneer adhered to the backing material and providing an electrical signal to the cutter control means indicative of such wood veneer and backing material movement.
a) a veneer dispensing means for mounting a roll of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll;
b) a veneer directing means for directing the movement of the veneer dispensed by the veneer dispensing means through a treatment applying means, a treated veneer drying means, an adhesive applying means, a backing applying means, and a cutting means;
c) a treatment applying means for applying a wood treatment to a first side of said wood veneer dispensed from said dispensing means and directed by said veneer directing means and positioned along the path of movement of the veneer dispensed from said veneer dispensing means;
d) a treated veneer drying means for drying the first side of said wood veneer treated at said treatment i) optical sensor means for optically sensing and measuring linear movement of the backing material and providing an electrical signal to the cutter control means indicative of such movement; and ii) linear sensing means for physically sensing movement of the wood veneer adhered to the backing material and providing an electrical signal to the cutter control means indicative of such wood veneer and backing material movement.
15. An apparatus in accordance with claim 12 wherein the treatment applying means further comprises:
i) a substantially enclosed spray booth forming openings capable of allowing the wood veneer to continuously move through said booth; and ii) a treatment spray nozzle means for spraying the wood treatment onto the wood veneer located within the booth.
i) a substantially enclosed spray booth forming openings capable of allowing the wood veneer to continuously move through said booth; and ii) a treatment spray nozzle means for spraying the wood treatment onto the wood veneer located within the booth.
16. An apparatus in accordance with claim 15 wherein the treatment applying means further comprises excess treatment collecting means for collecting excess wood treatment sprayed from said treatment spray nozzle means, said excess treatment collecting means comprising:
iii) an air blower means for blowing air from an upper portion of said spray booth to a lower portion of said spray booth;
iv) a reservoir located below said lower portion of said spray booth and interconnected with said spray booth in substantially airtight engagement for collecting the excess wood treatment; and v) an exhaust means for removing air from said lower portion of said spray booth, said exhaust means i) optical sensor means for optically sensing and measuring linear movement of the backing material and providing an electrical signal to the cutter control means indicative of such movement; and ii) linear sensing means for physically sensing movement of the wood veneer adhered to the backing material and providing an electrical signal to the cutter control means indicative of such wood veneer and backing material movement.
iii) an air blower means for blowing air from an upper portion of said spray booth to a lower portion of said spray booth;
iv) a reservoir located below said lower portion of said spray booth and interconnected with said spray booth in substantially airtight engagement for collecting the excess wood treatment; and v) an exhaust means for removing air from said lower portion of said spray booth, said exhaust means i) optical sensor means for optically sensing and measuring linear movement of the backing material and providing an electrical signal to the cutter control means indicative of such movement; and ii) linear sensing means for physically sensing movement of the wood veneer adhered to the backing material and providing an electrical signal to the cutter control means indicative of such wood veneer and backing material movement.
15. An apparatus in accordance with claim 12 wherein the treatment applying means further comprises:
i) a substantially enclosed spray booth forming openings capable of allowing the wood veneer to continuously move through said booth; and ii) a treatment spray nozzle means for spraying the wood treatment onto the wood veneer located within the booth.
i) a substantially enclosed spray booth forming openings capable of allowing the wood veneer to continuously move through said booth; and ii) a treatment spray nozzle means for spraying the wood treatment onto the wood veneer located within the booth.
16. An apparatus in accordance with claim 15 wherein the treatment applying means further comprises excess treatment collecting means for collecting excess wood treatment sprayed from said treatment spray nozzle means, said excess treatment collecting means comprising:
iii) an air blower means for blowing air from an upper portion of said spray booth to a lower portion of said spray booth;
iv) a reservoir located below said lower portion of said spray booth and interconnected with said spray booth in substantially airtight engagement for collecting the excess wood treatment; and v) an exhaust means for removing air from said lower portion of said spray booth, said exhaust means connected to said reservoir in substantially airtight engagement.
iii) an air blower means for blowing air from an upper portion of said spray booth to a lower portion of said spray booth;
iv) a reservoir located below said lower portion of said spray booth and interconnected with said spray booth in substantially airtight engagement for collecting the excess wood treatment; and v) an exhaust means for removing air from said lower portion of said spray booth, said exhaust means connected to said reservoir in substantially airtight engagement.
17. An apparatus in accordance with claim 16 wherein said blower means comprises means for blowing exhaust air removed from said drying means.
18. An apparatus in accordance with claim 12 further comprising wood veneer sensing means for sensing the presence of wood veneer at a location along a desired path of said wood veneer and providing an electrical error signal indicative of the lack of presence of wood veneer at said location; and means responsive to the electrical error signal for causing the apparatus to cease operation when the error signal is received.
19. An apparatus in accordance with claim 12 wherein the drying means further comprises a series of dryers capable of being set at a range of desired temperatures.
20. An apparatus in accordance with claim 12 wherein said adhesive applying means comprises:
i) a reservoir means for containing a liquid capable of causing the wood veneer to adhere to the backing material when the liquid is brought in contact with the first side of the wood veneer; and ii) a roller positioned such that a lower portion of said roller is immersible in a liquid adhesive and an upper portion of said roller is above an upper level of the liquid adhesive and rotatably mounted such that said roller rotates through the adhesive and is capable of applying adhesive to the first side of the wood veneer as the first side moves across the upper portion of said roller.
i) a reservoir means for containing a liquid capable of causing the wood veneer to adhere to the backing material when the liquid is brought in contact with the first side of the wood veneer; and ii) a roller positioned such that a lower portion of said roller is immersible in a liquid adhesive and an upper portion of said roller is above an upper level of the liquid adhesive and rotatably mounted such that said roller rotates through the adhesive and is capable of applying adhesive to the first side of the wood veneer as the first side moves across the upper portion of said roller.
21. An apparatus in accordance with claim 12 wherein said backing applying means further comprises a pair of pinch rollers capable of receiving said wood veneer and said backing material between the rollers and pressing said wood veneer and backing material together.
22. An apparatus in accordance with claim 12 wherein the cutting means further comprises:
i) first blade means aligned laterally to the wood veneer and backing material and positioned below the path of said wood veneer and backing material;
ii) upper blade means positioned laterally to the wood veneer and backing material and positioned above the path of the wood veneer and the backing material;
iii) guide means for guiding the upper blade means downward through the path of the wood veneer and backing material at a position adjacent to said lower blade means when a downward force is applied to the upper blade means; and iv) force applying means for applying a downward force to said upper blade means sufficient for cutting the wood veneer and said backing material.
i) first blade means aligned laterally to the wood veneer and backing material and positioned below the path of said wood veneer and backing material;
ii) upper blade means positioned laterally to the wood veneer and backing material and positioned above the path of the wood veneer and the backing material;
iii) guide means for guiding the upper blade means downward through the path of the wood veneer and backing material at a position adjacent to said lower blade means when a downward force is applied to the upper blade means; and iv) force applying means for applying a downward force to said upper blade means sufficient for cutting the wood veneer and said backing material.
23. An apparatus in accordance with claim 22 further comprising cutter control means interconnected to said force applying means for controlling the application of force by the force supplying means to the upper blade means.
24. An apparatus in accordance with claim 12 further comprising slitting means for slitting the backing material adhered to the wood veneer longitudinally between successive lengths of wood veneer.
25. An apparatus in accordance with claim 12 wherein the veneer dispensing means comprises:
i) a wood veneer roll receiving box for receiving a plurality of rolls of wood veneer; and ii) a plurality of axle means mounted in said wood veneer dispensing box for slidably receiving and rotatably mounting a plurality of wood veneer dispensing rolls.
i) a wood veneer roll receiving box for receiving a plurality of rolls of wood veneer; and ii) a plurality of axle means mounted in said wood veneer dispensing box for slidably receiving and rotatably mounting a plurality of wood veneer dispensing rolls.
26. An apparatus in accordance with claim 12 wherein said veneer directing means comprises a set of motor-driven pinch rollers for receiving and pulling said wood veneer.
27. An apparatus in accordance with claim 26 further comprising a plurality of substantially rectangular veneer guiding bars positioned adjacent to said wood veneer and projecting upwardly parallel to said wood veneer.
28. An apparatus for making treated wood samples comprising:
a) a veneer dispensing means for mounting a roll of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll;
b) a veneer directing means for directing the movement of the veneer dispensed by the veneer dispensing means through an adhesive activating means, a backing applying means, and a cutting means;
c) an adhesive activating means for applying an adhesive-activating material to a first side of the wood veneer and positioned along a path of movement of the veneer dispensed from said veneer dispensing means such that the first side of the wood veneer is capable of adhering to a backing material when the adhesive-activating material is applied to said first side of the wood veneer;
d) a backing applying means for applying a backing material to the first side of the wood veneer having the adhesive-activating material applied thereto and positioned along the path of movement of the veneer dispensed from said veneer dispensing means; and e) a cutting means for cutting a selected portion of the wood veneer adhered to the backing material and positioned along the path of movement of the veneer dispensed from said veneer dispensing means.
a) a veneer dispensing means for mounting a roll of wood veneer such that the wood veneer may be substantially continuously dispensed from the roll;
b) a veneer directing means for directing the movement of the veneer dispensed by the veneer dispensing means through an adhesive activating means, a backing applying means, and a cutting means;
c) an adhesive activating means for applying an adhesive-activating material to a first side of the wood veneer and positioned along a path of movement of the veneer dispensed from said veneer dispensing means such that the first side of the wood veneer is capable of adhering to a backing material when the adhesive-activating material is applied to said first side of the wood veneer;
d) a backing applying means for applying a backing material to the first side of the wood veneer having the adhesive-activating material applied thereto and positioned along the path of movement of the veneer dispensed from said veneer dispensing means; and e) a cutting means for cutting a selected portion of the wood veneer adhered to the backing material and positioned along the path of movement of the veneer dispensed from said veneer dispensing means.
29. A wood sample chip comprising:
a) a length of wood veneer having a thickness substantially equal to or less than one-eighth of an inch and a total surface area comparable to the surface area of typical paint samples;
b) adhesive means for adhering said wood veneer length to a hacking material; and c) a length of backing material adhered to said wood veneer with said adhering means.
a) a length of wood veneer having a thickness substantially equal to or less than one-eighth of an inch and a total surface area comparable to the surface area of typical paint samples;
b) adhesive means for adhering said wood veneer length to a hacking material; and c) a length of backing material adhered to said wood veneer with said adhering means.
30. A wood sample chip in accordance with claim 29 wherein said backing material is capable of displaying printed material on a side of said backing material opposite the side of said backing material adhered to said wood veneer length.
31. A wood sample chip in accordance with claim 29 wherein the length of wood veneer has a surface area of approximately two square inches.
32. A treated wood slat having a thickness substantially equal to or less than one-eighth of an inch and a total surface area comparable to the surface area of a slat for a horizontal window blind and manufactured in accordance with the process of:
a) dispensing a length of wood veneer such that the wood veneer may be continuously removed and directed from a dispenser to a second location;
b) directing said wood veneer length through a veneer spray booth and a veneer dryer;
c) spraying said wood veneer length at the veneer spray booth with a selected wood treatment; and d) drying said wood veneer length at the veneer dryer.
a) dispensing a length of wood veneer such that the wood veneer may be continuously removed and directed from a dispenser to a second location;
b) directing said wood veneer length through a veneer spray booth and a veneer dryer;
c) spraying said wood veneer length at the veneer spray booth with a selected wood treatment; and d) drying said wood veneer length at the veneer dryer.
33. A treated wood slat manufactured in accordance with the process of claim 32, said process further comprising the step of adhering said wood veneer length to a suitable backing material.
34. A length of treated wood manufactured in accordance with the method of claim 1.
35. A length of treated wood manufactured in accordance with the method of claim 2.
36. A length of treated wood manufactured in accordance with the method of claim 10.
37. A set of wood sample chips comprising:
a) a length of backing material;
b) a set of wood veneer chips sized for adhering to a portion of said length of backing material; and c) means for adhering each chip of said set of wood sample chips to said length of backing material;
a) a length of backing material;
b) a set of wood veneer chips sized for adhering to a portion of said length of backing material; and c) means for adhering each chip of said set of wood sample chips to said length of backing material;
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48335890A | 1990-02-22 | 1990-02-22 | |
| US483,358 | 1995-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2076395A1 true CA2076395A1 (en) | 1991-08-23 |
Family
ID=23919742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002076395A Abandoned CA2076395A1 (en) | 1990-02-22 | 1991-02-21 | Method and apparatus for making wood samples |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU7444091A (en) |
| CA (1) | CA2076395A1 (en) |
| WO (1) | WO1991012940A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD665211S1 (en) | 2009-08-06 | 2012-08-14 | Bender James J | Flexible sample of replica wood flooring |
| US20110045453A1 (en) | 2009-08-21 | 2011-02-24 | Bender James J | Kit Of Pre-Construction Samples For Replicating Construction Products |
| US8241039B2 (en) | 2009-08-21 | 2012-08-14 | Bender James J | Kit of pre-construction samples for replicating construction products |
| USD677955S1 (en) | 2010-06-10 | 2013-03-19 | James J. Bender | Flexible sample of a countertop replica |
| USD716086S1 (en) | 2010-06-10 | 2014-10-28 | James J. Bender | Flexible sample of a cabinet replica |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH174617A (en) * | 1933-01-20 | 1935-01-31 | Albert Hellmers Heinrich | Process for the production of wallpapers from peeled wood veneer. |
| US2095389A (en) * | 1934-07-05 | 1937-10-12 | Southern Kraft Corp | Process of making veneer articles |
| US2744551A (en) * | 1954-08-16 | 1956-05-08 | Gen Box Distributors | Veneer feeder and conveyor unit |
| FR1518021A (en) * | 1967-02-10 | 1968-03-22 | Prod Chim Des Francs | Coating material |
| DE2013063B1 (en) * | 1970-03-19 | 1971-03-25 | Th Goldschmidt AG, 4300 Essen | Process for surface hardening of wood-based panels |
| IT1046802B (en) * | 1974-07-18 | 1980-07-31 | Donati M | PROCEDURE FOR THE MANUFACTURE OF STRUCTURE VENEERED BY FRICTION |
| DE3218888A1 (en) * | 1982-05-19 | 1983-11-24 | Hoechst Ag, 6230 Frankfurt | LAYERING MATERIAL BASED ON A WOOD VENEER |
| SU1284987A1 (en) * | 1983-10-28 | 1987-01-23 | Предприятие П/Я В-2756 | Water=activated adhesive |
| DE8516615U1 (en) * | 1985-04-25 | 1985-10-24 | Carl Rückle Maschinenbau GmbH, 7302 Ostfildern | Device for coating veneers with carrier material |
-
1991
- 1991-02-21 CA CA002076395A patent/CA2076395A1/en not_active Abandoned
- 1991-02-21 AU AU74440/91A patent/AU7444091A/en not_active Abandoned
- 1991-02-21 WO PCT/US1991/001203 patent/WO1991012940A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO1991012940A2 (en) | 1991-09-05 |
| AU7444091A (en) | 1991-09-18 |
| WO1991012940A3 (en) | 1991-11-14 |
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