Apparatus and method for depositing color into cracks of a moving formed quartz slab to create veins in an engineered stone
10376912 ยท 2019-08-13
Inventors
Cpc classification
B05B12/02
PERFORMING OPERATIONS; TRANSPORTING
B28B1/005
PERFORMING OPERATIONS; TRANSPORTING
B05C9/10
PERFORMING OPERATIONS; TRANSPORTING
B05D2203/30
PERFORMING OPERATIONS; TRANSPORTING
B05B13/0221
PERFORMING OPERATIONS; TRANSPORTING
B44C1/00
PERFORMING OPERATIONS; TRANSPORTING
C04B41/45
CHEMISTRY; METALLURGY
C04B41/4576
CHEMISTRY; METALLURGY
C04B41/4574
CHEMISTRY; METALLURGY
C04B26/00
CHEMISTRY; METALLURGY
C04B41/4574
CHEMISTRY; METALLURGY
C04B41/4576
CHEMISTRY; METALLURGY
B44C5/06
PERFORMING OPERATIONS; TRANSPORTING
B29C39/20
PERFORMING OPERATIONS; TRANSPORTING
B05B12/004
PERFORMING OPERATIONS; TRANSPORTING
B05B1/20
PERFORMING OPERATIONS; TRANSPORTING
C04B26/00
CHEMISTRY; METALLURGY
B29C67/243
PERFORMING OPERATIONS; TRANSPORTING
International classification
C04B41/00
CHEMISTRY; METALLURGY
B05B12/02
PERFORMING OPERATIONS; TRANSPORTING
C04B41/45
CHEMISTRY; METALLURGY
B05C9/10
PERFORMING OPERATIONS; TRANSPORTING
B05B1/20
PERFORMING OPERATIONS; TRANSPORTING
Abstract
An apparatus including a first device which moves a first portion of a soft, damp, slightly pressed slab out of alignment with a majority of the slab and thus introduces a first crack in the slab; and a device for spraying a first colored material into the first crack of the slab. The first device which moves the first portion of the slab out of alignment with the rest of the slab may include a first cylinder. The device for spraying the first colored material in the first crack of the slab may include a robotic apparatus. In at least one embodiment, the apparatus may also include a second device which moves a second portion of the slab out of alignment with the majority of the slab and thereby introduces a second crack in the slab.
Claims
1. A method comprising causing a first portion of a slab to move vertically out of alignment with an area of the slab surrounding the first portion of the slab and thereby introducing a first crack in the first portion of the slab by using a first device located between the first portion and a ground surface to cause a force to be applied to the first portion of the slab; and depositing a first material having a color into the first crack of the slab, so that the first crack with the deposited first material becomes a vein having the color of the first material; wherein the first device causes the force to be applied to the first portion of the slab from below the first portion of the slab, and thereafter, the first material is deposited into the first crack of the slab from above the first portion of the slab; and wherein the first device continues to cause the force to be applied to the first portion of the slab from below the first portion of the slab, while the first material is deposited into the first crack of the slab from above the first portion of the slab.
2. The method of claim 1 further comprising moving the slab over at least a portion of the first device before causing the first portion of the slab to move vertically out of alignment.
3. The method of claim 1 further comprising causing a second portion of the slab to move vertically out of alignment with an area of the slab surrounding the second portion of the slab and thereby introducing a second crack in the second portion of the slab by using a second device located between the second portion and a ground surface to cause a force to be applied to the second portion of the slab; and depositing a second material having a color into the second crack of the slab, so that the second crack with the deposited second material becomes a vein having the color of the second material.
4. The method of claim 3 wherein the first device is a first cylinder; and the second device is a second cylinder.
5. The method of claim 1 further comprising causing a plurality of further portions of the slab to move vertically out of alignment with corresponding areas of the slab surrounding the corresponding plurality of further portions of the slab and thereby introducing a corresponding plurality of further cracks in the plurality of further portions of the slab by using a plurality of further devices each located between each of the corresponding portions and the ground surface; depositing a material having a color into the plurality of further cracks of the slab, so that the plurality of further cracks of the slab become veins having a color of a deposited material.
6. The method of claim 5 wherein each of the first device and the plurality of further devices is a cylinder.
7. The method of claim 1 wherein the first device is a cylinder.
8. The method of claim 1 further comprising wherein a computer processor controls the steps of causing the first portion of a slab to move vertically out of alignment with an area of the slab; and depositing the first material having a color into the first crack of the slab.
9. The method of claim 1 wherein the slab is a damp particulate mixture.
10. A method comprising causing a first portion of a slab to move vertically out of alignment with an area of the slab surrounding the first portion of the slab and thereby introducing a first crack in the first portion of the slab by using a first device located between the first portion and a ground surface to cause a force to be applied to the first portion of the slab; and spraying a first material having a color into the first crack of the slab, so that the first crack sprayed with the first material becomes a vein having the color of the first material; further comprising causing a plurality of further portions of the slab to move vertically out of alignment with corresponding areas of the slab surrounding the corresponding plurality of further portions of the slab and thereby introducing a corresponding plurality of further cracks in the plurality of further portions of the slab by using a plurality of further devices each located between each of the corresponding portions and the ground surface; and spraying a material having a color into the plurality of further cracks of the slab, so that the plurality of further cracks of the slab become veins having a color of a sprayed material; and wherein the first device and the plurality of further devices are arranged in a matrix of a plurality of rows and columns.
11. A method comprising causing a first portion of a slab to move vertically out of alignment with an area of the slab surrounding the first portion of the slab and thereby introducing a first crack in the first portion of the slab by using a first device located between the first portion and a ground surface to cause a force to be applied to the first portion of the slab; and depositing a first material having a color into the first crack of the slab, so that the first crack deposited with the first material becomes a vein having the color of the first material; causing the first crack to close and the first portion of the slab to move vertically back into alignment with the area of the slab surrounding the first portion by no longer applying the force to the first portion of the slab after the first material is deposited into the first crack; and wherein the slab is a damp particulate mixture.
12. A method comprising causing a first portion of a slab to move vertically out of alignment with an area of the slab surrounding the first portion of the slab and thereby introducing a first crack in the first portion of the slab by using a top surface of a first device located between the first portion and a ground surface to cause a force to be applied to the first portion of the slab; and depositing a first material having a color into the first crack of the slab, so that the first crack deposited with the first material becomes a vein having the color of the first material; further comprising causing a plurality of further portions of the slab to move vertically out of alignment with corresponding areas of the slab surrounding the corresponding plurality of further portions of the slab and thereby introducing a corresponding plurality of further cracks in the plurality of further portions of the slab by using a plurality of top surfaces of a plurality of further devices, respectively, each located between each of the corresponding portions and the ground surface; and depositing a material having a color into the plurality of further cracks of the slab, so that the plurality of further cracks of the slab become veins having a color of a deposited material; and wherein the first device and the plurality of further devices are arranged with respect to each other so that none of the top surfaces of any of the first device and the plurality of further devices, overlap any of the other top surfaces of any of the first device and the plurality of further devices; and wherein the slab is a damp particulate mixture.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE DRAWINGS
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(20) The apparatus 1 also includes U-shaped member 3, post 5, member 7, member 9, member 11, gear 13, and gear 15. The U-shaped member 3 may have openings 3a and 3b through which the rod or tracks 8 and 10 are inserted.
(21) In operation, the U-shaped member 3 may be moved by the servo motor 2 to cause the U-shaped member 3 to slide in the directions D1 or D2, on the rods or tracks 8 and 10, while the rods or tracks 8 and 10 remain stationary.
(22) In addition, the lift bars 12 and 14 and spray bars 20 and 22 together may be rotated to change their orientation with respect to the conveyor belt 26, with respect to the U-shaped member 3, and with respect to the conveyor belt length direction. For example, in
(23) Also, the servo motor 6 can drive the lift bars 12 and 14 up and down in the directions U1 and D1, shown in
(24) The servo motor 4 can drive lift bars 12 and 14 and the servo motor 40 can drive spray bars 20 and 22 from zero to one hundred and eighty degrees, with respect to the conveyor belt 26. For example, in
(25) In at least one embodiment, colorant is sprayed onto a surface, and/or in the cracks of the surface, such as cracks 16 and 18 shown in
(26) The conveyor belt 26 and the roller 28 may be part of an overall conveyor device, and the belt 26 and roller 28 may be driven by a motor not shown in
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(33) In at least one embodiment, the long lift bars 12 and 14 can be driven up in the direction U1, shown in
(34) Each of the spray bars 20 and 22 contains a series of spray nozzles, 24 and 25, respectively, positioned above the passing quartz slab 30 on the belt 26, controlled by a computer processor 202, and will send bursts of colorant 27 and 29, shown in
(35) In at least one embodiment, the spray bars 20 and 22 are always in a fixed orientation with respect to the lift bars 12 and 14 so that the spray bar 20 is always right above lift bar 12 and the spray bar 22 is always right above left bar 14, driven by servo motor 4 and 40, controlled by computer processor 202.
(36) Generally, in at least one embodiment, if the lift bars 12 and 14 are rotated to a certain degree by servo motor 4, the servo motor 40 is programmed to rotate spray bars 22 and 24 to exactly the same degree in order to line up components 12, 14 with 22, 24, as shown, for example, in
(37) In addition, generally speaking as shown by
(38) In at least one embodiment of the present invention, a different height level causes a portion of a formed quartz slab surface 30a to crack at a different height level point, while a crack exists, color material is sprayed into the cracks, such as 16 and 18. The spraying of color material can be done by a human with a spray gun, or by a spray bar or bars, such as 20 and 22, as described in this invention, or by robot with a way to detect crack area and spray into cracks.
(39) In addition, the direction of crack lines, such as lines 16 and 18 can be controlled by the rotatable lift bars 12 and 14 in one or more embodiments of the present invention.
(40) The lift bars 12 and 14 are sitting on top of members 19 and 21, which are connected to gear 13, and which can cause the lift bars 12 and 14 to rotate to a certain direction as desired, from zero to one hundred eighty degrees, driven by a servo motor 4 and controlled by the computer 202. The lift bars 12 and 14 can be raised when cracks in certain area of the surface of a passing through quartz slab on belt are needed, and at the same time when the cracks occur, the colorant is sprayed into the cracks, such as shown for cracks 16 and 18, with colorant 27 and 29 shown in
(41) In general, the higher the lift bars 12 and 14 are raised, the wider the cracks 16 and 18 on the surface of 30a of the passing through quartz slab 30 will be, and therefore when sprayed, the deeper the colorant 27 and 29 on the inner walls, such as 16a and 18a of the cracks 16 and 18, will penetrate, and the denser of the colorant 27 and 29 on walls, such as 16a and 18a of cracks 16 and 18 will be. I.e. typically more penetration means darker and deeper crack veins.
(42) When a substantial longitudinal direction (along the length of the slab 30) crack veins in a quartz slab are needed, the bars 12 and 14 are rotated to that orientation, such as shown in
(43) Lift bars 12 and 14 can be equipped with bearings, so it can have less resistance when raised against the moving conveyor belt 26. For example, in
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(46) Once the entire formed quartz slab passed the lift bar area and desired area of crack lines created and colorant sprayed into the desired section of the (the on-off of all nozzles on the spray bars 20 and 22 can be controlled separately if needed) cracks, the quartz slab 30 is transferred to a vacuumed press machine. When the press machine is lowered onto the quartz composite material 30, the cracks 16 and 18 (or 16 and 18) sprayed with colorant will become lines of the colorant in the quartz slab that simulate veins in natural stone on the surface of the slab after the slab 30 has been cured, grinded, and polished.
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(48) Referring to
(49) In operation, the computer processor 202 is programmed by computer software stored in the computer memory 204, and/or controlled by the computer interactive device 208 to control the components 26, 2, 4, 6, 24, 25, 24a, and 25a.
(50) In one or more embodiments, spray bars 20 and 22 may be replaced by a human hand with a spray gun, in order to add randomness in missing some of the crack area, wherein said randomness may be desired. In other embodiments, a robot sprayer with a photo sensor may replace spray bars 20 and 22, wherein the photo sensor is used to spot or detect cracks and spray in the cracks as desired. There may be other ways to spray into the cracks.
(51) Even though the rotation of the lift bars 12 and 14 are shown in one or more embodiments, as driven by servo motor 4 and controlled by computer processor 202, in alternative embodiments, the rotation of lift bars 12 and 14 can occur by hand.
(52) Even though the up and down movement of
(53) Even though the device including member 3, move in directions D1 and D2, in at least one embodiment, as shown in
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(56) The computer processor 502 may control the conveyor apparatus 300, the robotic apparatus 400 (which may include the spraying device 402), and a plurality of cylinders 330. The plurality of cylinders 330 may include a matrix of a plurality of cylinders corresponding with and aligned with the matrix of a plurality of openings 452. The cylinders 330 may include cylinders 330a-p shown in
(57) The robotic apparatus 400 may be any known robotic apparatus which is controlled by computer processor 502, in accordance with a computer program stored in computer memory 504 to move the spraying device 502 to any location above the plate 450 and simultaneously within a perimeter of the plate 450, shown in
(58) The conveyor apparatus 300 may be controlled by the computer processor 502, as programmed by computer software stored in the computer memory 504. The cylinders, and specifically the movement of the cylinders up and down, the height of the cylinders or distance, and/or whether a particular cylinder, such as cylinder 330f, protrudes through and above an opening of the plate 450, are controlled by the computer processor 502 as programmed by computer software stored in computer memory 504.
(59) Each of cylinders 330a-p may be a solid cylinder. In
(60) If all of cylinders 330a-p are below the top surface 307a (and the other top surfaces of belts 306b-i) then the slab 350 passes over the region of the plate 450, without any additional cracks being generated.
(61) However, when a cylinder 330f protrudes above the top surface 307a of the belt 306a (and thus above the top surfaces of the belts 306b-306i), the slab 350 is pushed upwards in the direction U1, shown in
(62) As shown in
(63) In at least one embodiment, the belts 306a-i are preferably parallel to each other and the gaps between adjacent belts of belts 306a-i, preferably have the same width, W1 shown in
(64) In at least one embodiment, the openings 452 shown in
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(69) In at least one embodiment, for the matrix of the plurality of openings 452 there is an aligned matrix of a plurality of corresponding cylinders, similar or identical to cylinders 330a-p. For example, if there are eight rows and sixteen columns for a rectangular matrix of openings 452, then there would be, in a least one embodiment, an aligned eight rows and sixteen columns of a rectangular matrix of cylinders, each cylinder similar or identical to cylinder 330a.
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(73) In accordance with a method in one or more embodiments of the present invention, particulate quartz, resin and other additives are mixed into a damp mixture and evenly distributed into a mold tray with or without a bordering frame. The damp mixture is deposited on top of a paper like sheet 311. The length and width of this mixture formation or slab 350, can vary.
(74) The damp mixture formation or slab 350 is slightly pressed on the top by a roller or by a flat plate. This slightly compacts the mixture formation into a consistency similar to damp soil.
(75) The slightly pressed mixture formation or a slab 350 is transported via a conveyor apparatus 300, such as by belts 306a-i moved by roller 302 in
(76) By controlling the rise of certain cylinder or cylinders (or first group of cylinders) of the cylinders 330a-p or similar cylinders corresponding to the matrix of holes 452, through the holes 452 of the plate 450, each cylinder pushes up on the bottom of the slab 350 through the sheet 311. This causes the top surface of the mixture formation above the cylinders 330a-p or similar cylinders to crack and fissure. Since the cylinders 330a-p, and similar cylinders, are controlled by computer processor 502, in accordance with computer programming stored in computer memory 504, the resultant cracks and fissures will have a certain level of controlled randomness. This controlled randomness is desired by design.
(77) Once the pattern of cracks and fissures have formed, a different color of dye or quartz and resin mixture in liquid, powder, or small particle form can be placed, deposited, sprayed, or in combination, onto the surface of the mixture formation over the cracked areas by spraying device 402 of the robotic apparatus 400. The different color of dye or quartz and resin mixture in liquid, powder, or small particle form may be placed, deposited, sprayed, such as by device 402 of the robotic apparatus 400 or in combination, onto the surface of the mixture formation over the second pattern of the cracked areas through the control of the computer processor 502. At this point, the first group of cylinders that formed the first pattern of cracks and fissures can be dropped or lowered in height through control of the computer processor 502.
(78) At this time, the second group of cylinder or cylinders of 330a-p or similar cylinders of a matrix may be raised through control of the computer processor 502, and the second set of corresponding cracks and fissure on the surface of the mixture formation will occur. A different color of dye or quartz and resin mixture in liquid, powder, or small particle form is then deposited by spraying device 402.
(79) The above process may be repeated until the final designed pattern is created.
(80) A second color of dye or quartz and resin mixture, which could be different from the slab 350 and different from the first color of filling material could be used if needed. The spraying device 402 may be supplied with solid, liquid or gaseous material depending on the desired aesthetic. A variety of methods for supplying the spraying device 402 exist, including but not limited to air hosing, tubing, or storage tanks.
(81) The width of the cracks and fissures can be partially controlled by raising the cylinders 330a-p and similar cylinders of a matrix to varying heights, and by deposit different amount of dye or colored material on the cracked areas. This will allow for the control of the width and depth of the resultant veins.
(82) Once finished, the entire slab 350, as modified, is moved by the conveyor apparatus 300, into a vibrating, vacuumed heavy-duty press machine. Once it is pressed, the slab 350 is moved to a curing machine. After curing, the slab is trimmed and ground down to desired size then polished to reveal the finished, veining patterned slab.
(83) In at least one embodiment, the present invention can raise certain points of the slab 350 through an array of cylinders 330a-p and similar cylinders of a matrix. A robotic apparatus 400 controls a spray device 402 which deposits or sprays colorant in liquid, powder or quartz and resin mixture in particle form, in any area of the plane in coordination with the group of the raised cylinders of cylinders 330a-p
(84) The plurality of cylinders 330 by themselves or in combination the plate 450 and/or in combination with other components may be considered a device which moves a first portion of a slab out of alignment with a majority of the slab and thereby introduces a first crack in the slab. The plurality of cylinders 330 and the plate 450 may be replaced by a physical structures having other shapes, for example the cylinders 330 may be replaced by a plurality of rectangular solids. The plurality of cylinders 330 may be considered a device which applies pressure to a slab at one or more locations. Each of the openings 452 of the plate 452, in a least one embodiment, is circular and has a diameter which is approximately equal to, or slightly larger than the diameter of each of the cylinders 330, to allow each of the cylinders to move upwards in the direction U1 through their corresponding opening of openings 452 and then move downwards opposite the direction U1, when the particular cylinder of cylinders 330 retracts.
(85) A variety of methods may be used to control the movement of the spray device 402. In the described embodiment a six axis robotic arm is used, however there are many other methods including but not limited to gantry structure devices with spray or delivery device 402 controlled by a computer processor.
(86) In at least one embodiment of the present invention, the cylinders 330 may be all raised beyond the top surface 307a of the belt 306a, except for cylinder 330o (or some other cylinder), which may be lower than the rest of the cylinders 330 as shown in
(87) The plurality of cylinders 330 may all initially be at their highest height, with respect to a ground surface 490. After the slab 350 is lowered onto the plurality of cylinders 330, one or more of the cylinders 330 may be selectively lowered by the computer processor 502 to introduce cracks into the slab 350, similar or identical to cracks C1 and C2 shown in
(88) The ground surface 490 is shown in
(89) Although the invention has been described by reference to particular illustrative embodiments thereof, many changes and modifications of the invention may become apparent to those skilled in the art without departing from the spirit and scope of the invention. It is therefore intended to include within this patent all such changes and modifications as may reasonably and properly be included within the scope of the present invention's contribution to the art.