AN ARRAY CONTROL METHOD AND SYSTEM OF PLANAR GRAINS

Abstract: This invention contains an array control method, i.e., forming, fabricating and plasticity method, and a system that controls the arrangement of planar grains, whose dimension is a micro-meter, in the conventional materials like crystal ceramics, synthetic resins, etc. The essentials of the invention are as follows. First, pouring planar grains which are mixed in fluid materials into mold (5). Then, enforcing the mold (5) to circular motion so as to arrange the planar grains in arbitrarily sculptured shape. During circular motion, the diameter of the mold (5) circular motion has a certain diameter and the revolutions per minute (RPM) of the arbitrary axis of the mold (5) circular motion is a certain RPM. A direction of the arbitrary axis of the mold circular motion is controlled according to size and thickness of forming-product, eliminating all of vibrations and motions conflicted with the mold circular motion. The equipment contains a circular shaft (2) which is installed in the middle of the body (1) and includes an eccentric part (2''). A metal (3) is attached to the eccentric part (2'') of circular shaft (2') and operate a pipe (4) (up and down motion part) that is welded with mold frame. A damper for elimination of vibration and motion is equipped between mold frame and body.

Description: Description Title of Invention: An Array Control Method and System of Planar Grains Technical Field This is the design technology, in particular the visual (color) design discipline, for various products. Background Art: Many conventional techniques that arrayed planar grains mixed in fluid resins have been known. Many conventional techniques - a spinning wheel method or a dropping method- were usually used to form an arbitrary array. Therefore, the array was simple and refabricated to utilize it for miscellaneous goods. Recently, many traditional techniques - a spinning wheel, dropping, pressing, heating, vibration and impact - were used to arrange the planar grains in the forming products, but the arrangement of planar grains was imperfect. Therefore, a high value-added product was not produced from design or decoration of products. Disclosure of Invention: This invention containes an array control method and system which fixes the array of planar grains mixed in fluid materials in the arbitrary shape. This is invented to solve above problems. The essentials of invention are as follows. First, pouring planar grains which are mixed in fluid materials into mold. Then, enforcing the mold circular motion so as to arrange the planar grains as arbitrarily sculptured shape. Finally, a high value-added product is produced from design or decoration of products. The detailed explanations about construction of the system and examples of products are as follows. Before enforcing the mold circular motion, following four conditions must be satisfied. First condition which is presented in example 1 and 2 is that the diameter of the mold circular motion and the size and thickness of forming -product must be controled for many conditions. Second condition which is also presented in example 1 and 2 is that the revolutions per minute of the arbitrary axis of the mold circular motion must be controled in accordance with the first condition and the viscosity of liquid-resins. Third condition is eliminating all of vibrations and motions conflicted with the mold circular motion which satisfies the first and second conditions. Fourth condition is controlling a direction of the arbitrary axis of the mold circular motion according to the size and thickness of forming -products. Now, we will descibe the drawing of the invention. An example drawing of the mold circular motion is represented in Fig. 1. The mold includes spaces that have a shape sculptured in it. We can pour liquid resins mixed with planar grains into the mold. The vertical section of the equipment of the invention is represented in Fig. 2. The equipment contains a circular shaft(2'), which is installed in the middle of the body(l) established on the rigid body(l') and includes a metal(3), a dynamic bearing(3'), a pipe(3"), a oil-space(3"') and an eccentric part(2"). The pipe(3") is inserted in the eccentric part(2") formed at the top and bottom of the circular shaft (2'). A mold frame(4) to support the mold is welded at the pipe(3"). A damper(6) for elimination of vibration and motion is equipped between a mold frame(4) and a body(l). And, a circular motion part(2) connected with the circular shaft(2') is equipped on top of the body(l). The operational example of the invention is represented in Fig. 3. The body(lθl) established between the upper rigid body(lθl') and the lower rigid plate(lGT') includes the damper(102') and the driving part(103). A damper(102) is equipped between the driving part(103), the mold frame(104) and the body(lθl). The driving part(103) contains the shaft(103') driven with the driving part(103). Fig. 4. is another example of Fig. 3. and its driving part is electric vibrator. Its motional part(204') is situated between the left and right fixers(203). The motional part(204') is connected with frame-support(204) in a body. The frame(205) is inserted in frame ~ support(204) deeply. The example of this invention with above-mentioned configuration is explained in the following statement. Brief Description of Drawings: Fig. 1 ; The Example Drawing of The Mold Circular Motion Fig. 2 ; The Design Drawing of The Invention (A) Vertical Section , (B) Horizontal Section Fig. 3 ; The Operational Drawing of The Invention (A) Vertical Section , (B) Horizontal Section (C) The Vertical Section of The Operational Part of (A) (D) The Vertical Section of Damper to Control The Changing Angle of A Arbitrary Axis of Mold Circular Motion Fig. 4 ; The Example of The Operational Part of Fig.3 (A) The Vertical Section of A Equipment to Eliminate A Vertical Vibration (B) The Horizontal Section of A Equipment to Change Linear Reciprocation to Circular Motion ♦Explanation of symbols that is an important part of drawing 1 -System Body, 1' -Rigid Body, 2-Circular Motion Part, 2' -A Shaft of The Circular Motion Part, 2"-Eccentric Part, 3-Metal, 3'-Dynamic Bearing, 3"-Pipe, 3" '-Oil-Space, 4-Mold Frame, 5-Mold, 6-Damper, 7-Changing Speed Motor, 7' -Pulley, 8,8' -Driven Pulley, 9,9' -Belt, 101 -System Body, 101 '-Rigid Body, 101"-Rigid Plate, 102,102' -Damper, 103-Driving Part, 103' -A Shaft of The Circular Motion Part, 103"-Circular Motion Part, 103" '-Eccentric Part, 104-Mold Frame, 104' -A Case of The Metal, 105-Mold, 106-Metal, 203- Vibrator, 204-Mold Frane, 204' -Motional Part, 205-Mold, A'B'C'D'E'F', a'b'c'd' -Damper Regulator Best Mode for Carrying Out the Invention: Example 1) The driving part(103) is made in the type of a cam(Fig.3. "ty") like Fig. 3. Results in the following is obtained by making the frame(105) rotate in specific RPM range after polyester which is mixed with planar mica ,or planar pigment, is injected into the framedOδ) of device (AXBXCXD) of which eccentric distance and circular motion axis are fabricated differently. Example 2) The eccentric part above and below(2") of the driving part(2') which is given in Fig. 2. is different from each other. The frame(5) is mounted on model F, G, H which are different from each other in RPM of driving part(2'). Glucose which is mixed with the planar particle (mica) is injected into the frame(5) The following result can be obtained by acting the frame. Fig. 3. (D) , which is the same structure as Fig. 3. (C). , is a vertical -sectional view of the damper control for controlling the moving angle of the virtual center axis of circular motion of the frame. Force is exerted on the upper damper bcacb in the direction of arrows, on the lower damper d in the diretion of arrow. The magnitude of force should be damper a'+b'+c'=d'+b'. When the virtual center axis of frame is moved, the moving magnitude is proportional to h. Fig. 4. (A) is the example of the driving part(103) of Fig. 3. The vibrator- type linear reciprocation of the frame support (204) is transformed to circular motion. To remove the noise generated in that process , damper A'B'C'D'E'F' is controlled. Doing that, the magnitude of B' force = the magnitude of A' force + the weight of following body(frame support)(204)+the weight of frame(205) should be satisfied. If the magnitude of the controlled force of B' is greater than that of F', vertical motion (vertical vibration) can be removed. As indicated in Fig.4. (B), if the pressure is exerted in the direction of arrow by the damper D'C'D' in front and back side, and by the damper E'F'E' in left and right side and if the condition C'<D'<E'<F' is satisfied, the frame(205) rotates. The analysis of the above-mentioned is like the followings. 1. The diameter of the circular motion of the frame(5) is equal to the distance of eccentric part(2") of driving part(2') in the cam type and is equal to the distance of the linear motion in the vibrator-type. Although the rotation can be made using the control of the damper A'B'C'D'E'F'. In damper condition whichi removes the vertical vibration, It is necessary to remove the vertical vibration to the utmost through the precise control using air cylinder(AIR S.L) etc. 2. In the case that RPM of the virtual center axis of circular motion of frame(5) is greater than or equal to 7200RPM, metal is used in order for the principle of the hydraulic bearing to be applied. In the case that the RPM is about 32000 RPM, oil injected into metal (bearing) should be cooled. 3. As for the viscosity of material (resin) Polyester resin is observed as its viscosity(CP) is increased according to hardening and glucose is observed as its viscosity is decreased according to temperature. As the result of observation, to remove the vibration the amplitude of the vertical vibration should be decreased up to O.Olm/m as the viscosity becomes low. Doing so, good arrangement state of planar grains is preserved. That is, RPM should be increased as the viscosity becomes high. 4. In the size of the forming product and its thickness(the carved form in the forming frame), as the forming product becomes high (as thickness becomes thick), good arrangement of planar grains is preserved even if the radius of circular motion of frame increase. 5. On the directin of the virtual center axis of the circular motion of frame, as the diameter of the circular motion of the frame, good arrangement of planar grains is preserved even if the moving angle of the virtual center axis increase. As the diameter of the circular motion of the frame becomes small and RPM of the virtual center axis increases, good arragement can be preserved if the virtual center axis is fixed. 6. On the removal of the vibration of the frame, It is desirable to remove all of the vibration which is conflictive with the circular motion of the frame(105), when the vibration phenomenon is removed by attaching a damper(102) between the body(lθl) and the frame support(104) as illustrated in Fig. 3. The phenomenon such as the example 1,2 is verified by measuring the amplitude of the vertical motion (vibration) in the same direction as the virtual center axis of the diameter of the circular motion whichi affects the arrangement of the planar grains greatly and observing the tolerance of each model. As observed in the above example, the device in Fig.2. or Fig.3. is configured in order for the diameter of circular motion of the frame and RPM of the virtual center axis of circular motion of the frame to be suitalbe according to the size of forming product and the viscosity just before the state of gel(forming) of the forming product, to preserve good arrangement of the planar grains. The RPM of the driving part and the eccentric distanceGinear motion distance) is configured in different ways. It is verified that the system, which includs the device for controlling the moving angle of the virtual center axis and the removal of the vertical vibration by controlling the damper in Fig.2.,Fig.3. dependent on the diaemeter of the circular motion and the RPM of the virtual center axis of each model, can keeps the arrangement of the best state of the planar grains in the random shape as ABCDE(Fig.3.) of example 1 or FGH(Fig.2.) of example 2. Good state(70%~80%) of the arrangement of the planar grains can be obtained by carrying out the experiment such as example 1,2 in the state that the resin for injection moulding is heated and melted(viscosity 110CP) even though the best state(99%~ 99.99%) can not be obtained. It is possible to keep the best state of arrangement if the device for increasing RPM or the property constitution for decreasing the viscosity technologically is invented. In this invention, the frame whichi is attached to the follower rotates by composing the driving part and the following part to the cam or vibrator type when the frame is made to rotate. As for all of the method such as mechanical, electric and electronic type, the method to rotate frame can be applicable to this. Industrial Applicability: As stated above, this invention is very useful because it makes the frame(5)(105X205) rotate as example 1,2 and it makes value-added due to the design of the product and the decoration increase.

Claims: Claims 1. The method to preserve random arrangement of planar grains, which arranges the planar grains to the carved form in the frame by composing system with various device in order for the frame to rotate on conditon that the direction of virtual center axis of rotation of frame is moved according to the size of the forming product and that the rotation of frame (5) becomes the specific diameter arbitrarily(exl,2) and the RPM of virtual center axis of rotation of the frame becomes the specific RPM arbitrarily (exl,2) and all of the motion (particularly, vertical vibration and vertical motion) in conflict with prescribed rotation is removed to the utmost . 2. Ramdom arrangement device of planar grains. Install driving axis(2') which has eccentricity part(2") into the upper and lower part of body connected on fixed tabled '). Intermediate eccentricity part(2") of driving axis(2' ) using metal and then operate pipe( following part)(3"). Frame support(4) is welded with pipe(3"), and damper is installed within frame support(4) and body(l). 3. Ramdom arrangement device of planar grains. About former section 2, body(lθl) is installed in which damper(102') is intermediated within upper fixed table(lθl') and lower left-right fixed tabledOl"). Frame support( following part)(104) welded with following part(moving part) of driving part(103) is installed into the body.Damper is installed within body(lθl) and frame support(104). 4. Ramdom arrangement maintain device of planar granins. About former secton 2, fixed part(203) is installed to the left-right face of moving part(204') which projected from the lower face of frame support(following part)(204). This can transform reciprocation linear movement into circular movement.

Inventors: CHO KEUK-LAE, CHO, KEUK-LAE
Applicants: CHO KEUK LAE, CHO, KEUK-LAE
Application year: 1997
Main classification: C08J3
IPC codes: B01F15, B29C41, B29C70