JP2007061708A - Method of manufacturing japanese lacquer coated article and polishing apparatus for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lacquerware manufacture technique in which the manufacture efficiency of traditional lacquerware is remarkably improved by saving the labor and time in a polishing process essential for a modified coating method represented by TSUGARU coating to speed up the plishing process conventionally requiring large time and labor. <P>SOLUTION: In the method of manufacturing the lacquer coated article, a multilayer lacquer coated surface 63 is formed by a Tang coating technique by successively carrying out planning, coating, coloring, purified-lacquer coating, color enhancing coating and top-coating on a synthetic resin made pen shaft 6 having a nearly cylindrical shape rotating around a fixed axis center C and having a screw part 62 integrally formed at one end side, the screw part 62 is attached to a chuck part 21 of an electric rotation tool 2 fixed onto a base 11 with an exclusive use tool 5, the other end side of the pen shaft is supported using a tailstock base 4 freely rotatively and the polishing is carried out by softly pressing a polishing material 7 on the lacquer coating surface 63 while rotating the electric rotation tool 2 at a proper rotation speed in the screwing direction of the screw part 62. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    This invention has all fields related to the manufacture of coated products as its technical field, and in particular, provides and sells equipment and equipment necessary for the manufacture as well as the field of manufacturing lacquered products. From the field to provide materials necessary for those materials, machinery and parts, such as wood, stone, various fibers, plastics, various metal materials, etc., electronic components incorporated in them, and integrated them Fields generally referred to as industrial machinery, such as the field of control-related equipment, the field of various measuring instruments, the field of such equipment, the power machine that moves the equipment, the field of electric power and energy as the energy, and the field of oil In addition, testing and researching these facilities and equipment, the fields related to their display, sales, import and export, general results, the results of their use and the equipment to build them, Technical fields that are not related to the fields related to the collection and transport of garbage generated by the operation of equipment, the recycling field that efficiently recycles the garbage, and new fields that cannot be envisaged at this time. Not so much.

(Points of interest)
The lacquer crafts by the change coating technique represented by Tsugaru coating form a concavo-convex pattern on the ground surface by various methods using squeezed lacquer, and after painting various colored lacquer on the upper layer, the pattern Because it is manufactured by a series of extremely time-consuming work to sharpen the surface, skilled craftsmanship and various processes that require a long time are indispensable. It is applied only to high-quality lacquerware, and is different from general daily goods that are mass-produced using large machines in the factory. It was supplied to the market as limited to value products.

    However, once the global market has changed and production systems are set up in neighboring countries where production costs such as labor costs are extremely low, and extremely cheap products, mainly daily goods, begin to be imported and sold, the domestic prices of these related products Will be the primacy of “price destruction” and will be unable to avoid the influence of traditional lacquer crafts. As the limits began to appear, the demand for lacquer crafts declined steadily, and many lacquer craftsmen who supported lacquer crafts under a unique division of labor had the opportunity to demonstrate their technical capabilities. Since it is assumed that there will be a situation where people are forced to change their jobs, the lacquering merchant can be set as low as possible so that it can be easily accepted by people of a wide range of ages. Cultivating new markets by finding new technologies and the necessary technical means, and expanding the demand by allowing more people to actually use the goodness of lacquered products, which have an established reputation for quality. It can be said that planning is an urgent issue for the lacquering industry.

(Conventional technology)
Instead of such a stagnant lacquering industry, for example, as disclosed in Japanese Patent Application Laid-Open No. 2005-47171, “Manufacturing method of coated decorative board”, a chemical fiber is stuck on a substrate by a sticking step, In the subsequent base coloring step, a colored base layer is formed which is painted on the chemical fiber and exposed as a pattern after polishing. In the partial coloring step, the base colored layer is covered with a punching die and partially painted. After forming the partially colored layer on the layer, a polishing process for polishing the surface of the partially colored layer, and an overcoating process for coating the polished partially colored layer and the base colored layer to form an overcoat layer on the surface are performed. , Which manufactures a coated decorative board with a predetermined pattern by the partially colored layer and the base colored layer, and does not depend on the craftsman's many years of experience and technology, and painted decorative board that imitates the design of traditional craft lacquerware There are those that can be industrially mass-produced with the same color tone and texture and substantially the same pattern, and the invention “Fiber-reinforced resin composite material and method for producing the same” disclosed in JP-A-11-309797 In molding fiber reinforced resin composites, after laying up with a prepreg or filament wind, before coloring the matrix resin, place the coloring material on the surface, and then cure the matrix resin attached to the tape wrap or mold There are some cases where the coating process of the fiber-reinforced resin composite material molded body is omitted and a molded article having high coloring durability is provided.

However, the former “painted decorative board manufacturing method” invention is basically a flat plate like a door for a system kitchen, and it is a technique that is applied to a relatively large substrate. Is to display traditional craft lacquer ware patterns using polyester paint, urethane paint, etc., which is different from the technology that enables mass production of lacquer ware that has been sharpened and painted, and requires the most man-hours. There is no mention of any technology to improve the efficiency of the lacquerware, and it must be said that it is not a technology that substantially evolves traditional lacquerware change coating techniques. Formed body and method for producing the same "The invention relates to a surface layer of a matrix resin in a composite material using glass fiber, carbon fiber, aromatic polyamide fiber or the like as a reinforcing material and a synthetic resin as a matrix. By embedding the coloring material in a visible state, it eliminates the need for painting and polishing processes on the same surface, and it has robustness such as a change coating on the base surface made of synthetic resin material and various decorative finishes. Although it is feasible, it does not use traditional lacquering techniques at all and does not lead to technology that enables mass production of lacquered products.
(1) JP 2005-47171 A (2) JP 11-309797 A

(Awareness of problems)
As we have seen above, the lacquerware-like appearance that has been proposed in the past is not a product that uses traditional lacquer, but is a synthetic resin paint developed for industrial use. To obtain a Tsugaru-coated appearance, or to obtain a polished lacquer-like appearance by embedding a coloring material in the surface layer of the synthetic resin material itself. It cannot be linked to the technology that enables mass production of lacquerware by painting, and the lacquered products are not limited to high-quality lacquerware, but are related to products that are easily used by many people on a daily basis. Until then, the traditional production process, in which many skilled craftsmen under the division of labor, continue to do a number of manual work, continues to be shipped to the market as high-quality lacquerware for small-volume production. Product development and pricing to respond to the recent market economy, where a wide variety of product selection can be made by consumers, and technological development for that purpose have remained quiet. The urgent problem of stagnation and the unemployment of lacquered craftsmen is still unsolved.

(Object of invention)
Therefore, this invention is based on the above problem awareness, in order to spread the spread of lacquered products, in the change coating represented by Tsugaru coating, first of all, the efficiency of the sharpening process that is indispensable to the technique, It is not possible to develop lacquer ware manufacturing technology that greatly saves the polishing process in lacquering, which previously required a lot of time and labor, and greatly increases the production efficiency of traditional lacquer ware From the judgment of heels, we started development and research very quickly, and as a result of repeating trial and error over many years and many trial productions and experiments, this time, finally, a new lacquer coating product manufacturing method and a new structure used for it In the following, the configuration thereof will be described in detail together with an embodiment representative of the present invention shown in the drawings.

(Structure of the invention)
As can be clearly understood from the embodiments representing the present invention shown in the drawings, the lacquer coating product manufacturing method of the present invention basically comprises the following configuration.
That is, a multi-layered lacquered surface by a change coating technique is formed so as to be continuous at least in the circumferential direction at a suitable position on the surface of a substantially columnar or cylindrical base body that rotates around a certain axis. After curing sufficiently, place the base body, which is not lacquered, at least at one end, directly against the chuck part of the electric rotary tool fixed in place, or use a dedicated jig It is mounted so that it can be driven to rotate around its rotational axis, and if necessary, the other end side is supported in a concentric manner by using a core pusher, and the electric rotary tool is rotated at an appropriate speed. Lacquered product manufacturing method with a gist of polishing and / or lacquering and then polishing after lightly pressing an abrasive with an appropriate surface roughness to the lacquered surface while starting It is.

    To show this basic configuration more specifically, a multi-layered lacquered surface by a change coating technique is applied to the appropriate surface of a roughly cylindrical or cylindrical substrate body that rotates around a certain axis. A chuck for an electric rotary tool that is formed so as to be continuous at least in its circumferential direction and is sufficiently cured, and then is fixed at a predetermined position at least at one end, which is not lacquered, on the base body. Attached to the part directly or via a dedicated jig so that it can be driven around the axis of rotation, and if necessary, the other end can be rotated concentrically using a core push stand. In addition, while starting up the electric rotary tool at an appropriate rotational speed, sharpen the surface of the lacquered surface with an abrasive with an appropriate surface roughness, and then sharpen it. Rotate and gloss The lacquer painted manufacturing method consisting of a structure in which to perform the polishing as pressing lightly on the wood.

    More specifically, it is roughly columnar or cylindrical that rotates around a certain axis, and is placed on the surface of the synthetic resin base body at the appropriate place on the surface of the body, coating, coloring, Lu coating, wife coating, top coating. Or a multi-layered lacquered surface by the tang-coating technique that repeats painting and drying in order, each of the device, painting, coloring, and top coating in order to be continuous at least in the circumferential direction. After being cured, the base body is not lacquered, and at least an appropriate position on one end side can be appropriately controlled between 0 and 10000 rpm, preferably 0 to 2500 rpm, and fixed on a predetermined base. Mounted on the chuck part of the electric rotary tool directly or via a dedicated jig so that it can be driven to rotate around its rotational axis. In addition, the electric rotary tool is started at an appropriate number of revolutions, and the abrasive material with the appropriate surface roughness is lightly pressed against the lacquered surface and sharpened, and then polished and / or lacquered. It is possible to call it a method for producing a lacquered product.

    Similarly, the surface of the pen shaft, which is a base body made of a synthetic resin, is a substantially cylindrical shape that rotates around a certain axis and is integrally formed with a screw portion for mounting a pen tip side component on one end side. Multi-layered lacquer coating using the technique of tangling, which repeats painting and drying in succession, each of gimmicking, painting, coloring, Lu coating, wife painting, and top coating, or each of gimmicking, painting, coloring, and top coating. After the surface is formed so as to be continuous in the circumferential direction and sufficiently hardened, the lacquered threaded portion of the pen shaft can be appropriately controlled between 0 and 10,000 rpm, preferably between 0 and 2500 rpm. The chuck part of an electric rotary tool fixed on a predetermined base can be driven to rotate around its rotational axis via a dedicated jig that has a threaded part that can be screwed onto the threaded part. Attach to the other end side The center of the electric rotating tool is supported in a concentric manner by using a core stand, and the electric rotating tool is rotated at an appropriate number of revolutions in the screwing direction with the pen shaft screw part. This can be said to be a method for producing a lacquered product in which a rough abrasive is lightly pressed and polished, and then polished and / or lacquered.

(Related invention)
In relation to the lacquer coating product manufacturing method described above, this invention also includes a sharpening device that can be used effectively in the sharpening process in the change coating technique, and the structure is basically as shown below. It is.
That is, an electric rotating tool fixed on a predetermined base and freely controllable within a range of 0 to 10,000 rpm, preferably 0 to 2500 rpm, and a chuck body whose rotation axis is supported in a substantially horizontal posture, It can be moved back and forth in a substantially horizontal manner between a distance shorter than the rotational shape axial dimension and a distance sufficiently longer than the rotational shape axial dimension, and on the base at any forward and backward position A core pushing stand incorporating a bearing mechanism that has a mechanism that can be temporarily fixed and has a bearing mechanism that enables smooth rotation is provided at the joint with the other end of the substrate body. This is a sharpening device used in the above-described method for producing a lacquered product, which is formed by interposing a dedicated jig that can be rotatably mounted on at least one end side.

    More specifically, a hand drill which is an electric rotary tool fixed on a predetermined base and can be appropriately controlled between 0 and 10000 rpm, preferably 0 and 2500 rpm, and its rotation axis is supported in a substantially horizontal posture. A distance shorter than the rotational axis direction dimension of the pen shaft in which the screw body for mounting the pen tip side component is integrally formed on one end side with respect to the chuck part, and the rotational axis direction dimension of the same Has an advancing / retreating mechanism that can be moved back and forth substantially horizontally between a sufficiently long distance, and can be temporarily fixed on the base at an arbitrary advancing / retreating position, and a joint portion with the other end of the pen shaft. A dedicated jig having a wearable screw part that can be attached to the chuck part of the hand drill by screwing at least one end side of the pen shaft into the chuck part of the hand drill. Intervening The method for producing a lacquer coating product according to the present invention, in which the hand drill is configured such that the chuck portion can be rotationally driven toward the screwing direction with the pen shaft screw portion for each of the special jigs. It becomes the sharpening device used for

    As described above, according to the method for producing a lacquered product of the present invention, in the process of sharpening a multilayered lacquered surface by a change coating technique applied to an appropriate surface of a substantially cylindrical or cylindrical substrate body, electric rotation Attach an appropriate place of the base body to the chuck part of the tool, and rotate it at an appropriate number of revolutions while sharpening the pattern by gently pressing the surface roughness abrasive on the lacquered surface. Therefore, it is possible to greatly improve the efficiency of the sharpening process that has relied on manual work for everything before, and by applying this manufacturing method to the production of ballpoint pens with a Tsugaru coating on the pen shaft, If it was a technique, only 500-600 pieces could be produced by one craftsman per month, but according to this manufacturing method, it was possible to produce 2500-3000 pieces / month. Previously, the market price of 1,500 to 1,800 yen per ballpoint pen could be reduced to around 1000 yen to expand sales and popularization. As a result, a wide range of consumers, even if it was a daily necessities Many of the lacquer craftsmen who have succeeded in advanced traditional techniques will be able to enjoy the good value of lacquer lacquer ware represented by Tsugaru lacquer, which will review the value of the products for lacquer ware and spread the spread of lacquer ware. The excellent feature that it is connected to securing the place of this will be obtained.

    In addition, even during the polishing process after finishing the grinding process, it is possible to realize more efficient production by polishing using the same electric rotary tool. By using a power drill that is widely supplied to the general market, it can be purchased and maintained at a much lower price compared to developing and manufacturing a dedicated rotary tool, and the cost required for the sharpening process is significantly higher. It will be possible to reduce this, and unlike the past, it can be expected to have a great effect of being able to reliably rebuild a production system with excellent economic efficiency.

    Furthermore, according to the sharpening device included in the present invention, it is possible to screw the screw portion for mounting the pen tip side part of the pen shaft, which is the base body, to the dedicated jig mounted on the chuck portion of the electric rotary tool. The threaded part to be worn is formed so that the pen shaft can be quickly and easily attached to and detached from the electric rotary tool, and the electric rotary tool is screwed in the screwing direction with the pen shaft screw part. As a device that can be rotated at an appropriate rotational speed, the threaded part of the dedicated jig that receives the rotational driving force and the pen shaft screw part are screwed together to prevent inadvertent removal of the pen shaft. In addition to obtaining the advantage that more efficient production can be achieved, this electric rotary tool adopts a mass-produced commercially available hand drill, Maintainer The cost required for the process can be greatly reduced, the number of rotations can be operated freely at hand, the number of rotations suitable for the sharpening process can be easily selected and controlled, and the pen shaft screw part is dedicated. When attaching or detaching the pen shaft by screwing or unscrewing to the wearing screw part of the jig, the screw shaft can be quickly screwed and unscrewed by using the forward / reverse function of the hand drill without rotating the pen shaft. The effect of making it possible to perform the process will be demonstrated.

    And, when mounting a substantially cylindrical substrate body, a dedicated shaft tool is used which is formed by concentrically and integrally extending and forming a filling shaft portion in the interior cavity of the substrate body. Then, the substrate body that is rotationally driven and subjected to the sharpening process can be reinforced from the inside thereof to prevent the occurrence of unnecessary troubles such as misalignment, deformation, breakage, and dropping of the rotational axis, and By adding and forming a friction layer made of elastic material on the outer peripheral wall surface that joins the inner wall surface of the pen shaft of the reinforcing shaft, sharpening work such as inadvertent slipping or idling of the pen shaft mounted on the dedicated jig In addition, an effect of accurately preventing the occurrence of an undesirable phenomenon can be obtained.

    Furthermore, a grip fixing bracket for removably fixing the grip portion of the hand drill to the base and a tool fixing bracket for removably fixing an appropriate position near the rear end of the motor built-in main body portion of the hand drill. And a centering support mechanism that can adjust at least the vertical angle of the chuck axis, preferably the vertical and horizontal angles, on the lower side of the hand drill closer to the chuck part, Sharpen the rotation axis of the substrate body to be polished and adjust it to the optimum angle and orientation for the work, ensuring good workability, and removing and attaching each fixing bracket allows maintenance of the hand drill. It is possible to improve the performance and to obtain an excellent feature that it can be used economically by making it possible to easily and quickly deal with failure and replacement after aging.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The base body has a function that it can form a multi-layered lacquered surface based on the coating technique instead of the outer peripheral surface, and can be used as a lacquered product withstands the subsequent polishing process. More specifically, wood, bamboo, cloth, leather, metal, glass, gypsum, clay, synthetic resin, composite material of wood powder and synthetic resin, or paper paste with paper laminated with glue, Although it is possible to use products made of various materials, synthetic resin molded products that can be provided at a relatively low cost by improving the productivity by omitting the base adjustment, base, undercoating, and intermediate coating processes. It is desirable to be able to use a reinforced plastic (FRP) molded product made of glass fiber, carbon fiber, aramid fiber, boron fiber, etc., if necessary, and change the expression and show it as a more specific one. ball Pens (and caps) or handles such as pencils, fountain pens, brushes, handles, fishing rods, daily necessities and decorations, various sports equipment and leisure goods, etc., and various articles such as legs, cylindrical cases, chopsticks, etc. In addition, it has a circular shape around a certain axis, such as a substantially columnar shape, a substantially cylindrical shape, or a substantially conical shape, and decoration, reinforcement, etc. are applied by lacquering at appropriate places on the surface continuous around the circumference of the rotation shape. It can be said that it is desirable or is a base material of a preferable article.

    There are various techniques for the change coating, such as applying several layers of different color lacquer on the surface of the base body to sharpen spotted patterns, and using rapeseed, chaff, pine needles, etc. Yes, it can be represented by so-called Tsugaru coating, Wakasa narrow coating, etc., and more specifically, if necessary depending on the properties of the substrate body, base adjustment, base, undercoat, Apply intermediate coating, if necessary, apply directly to the substrate body, paint, paint, paint, lu paint, wife paint, top coat, or coat, paint, paint, top coat in sequence It is possible to say that it is a technique of tangling that repeats and drying, and after applying overpainting with colored lacquer, it is a technique of sharpening and lifting the color hidden in the lower layer in a patchy shape, For general lacquered base treatment and recoating Phase, and finishing processes, or lacquered and painted each process stage, it is also possible that those including lacquered techniques performing polishing step in any such finishing steps.

    A sharpening device is a device that holds at least one end of a substantially columnar or cylindrical substrate body and is driven to rotate around its axis to enable semi-automation of sharpening or polishing work, and a drive motor is provided. It has an electric rotating tool that can be activated by supplying external power, battery or charging, etc., and provided with a core pushing stand that can rotatably support the other end of the base body as necessary. More specifically, an appropriate structure for mounting the electric rotary tool and the tailstock arranged so as to oppose the electric rotary tool at an appropriate position of the base capable of fixedly supporting the electric rotary tool. Is provided.

    The base functions to enable the electric rotary tool to be fixedly supported in a desired posture, and to further fix the core push stand provided in an appropriate position and posture as necessary. The shape and dimensions are not particularly limited as long as they can fulfill the support function of an electric rotary tool or a tailstock, and are more specific. For example, when an electric rotary tool is used as a hand drill, the grip fixing bracket part for detachably fixing the grip part of the hand drill and the chuck part in the motor built-in main body part of the hand drill are opposite to the chuck part. A tool body fixing bracket for detachably fixing an appropriate position near the rear end of the hand drill, and a motor built-in body portion of the hand drill near the chuck portion. At least the upper and lower angles arranged in the lower chuck portion axis around made, preferably vertical, it is assumed in which a centering support mechanism that enables adjusting the right angle.

    The electric rotary tool maintains the proper position of the substrate body, rotates it around the axis of the rotating shape at an appropriate rotation speed, and makes it possible to semi-automate the sharpening process in the traditional change coating method. It must be controllable to an appropriate range of rotation speeds that can achieve delicate sharpening work, and must be capable of forward / reverse switching control and have an emergency stop switch. A dedicated jig that can ensure good detachability and high mounting positioning accuracy is mounted on the chuck part arranged on the tip side of the rotating shaft of the drive motor according to the shape and structure of the base body. For example, an optimum output and torque for sharpening can be obtained, and a hand drill that can be appropriately controlled between 0 and 2500 rpm, which is relatively low in price, is used. Although it is desirable, it is possible to use a hand drill that is controllable at a relatively high performance of 0 to 10000 rpm among the commercially available ones. It's not impossible.

    The special jig is interposed between the chuck part of the electric rotary tool and the appropriate position of the substrate body, and has sufficient accuracy and strength to connect and fix between them detachably. It must have a base end part that has sufficient strength to support the main body and can be tightened and attached to the chuck part, and a front end side part that can be attached to the base body at an appropriate position. Projections, rods, holes, hooks, worn male or female threaded parts, etc. that can be connected in a fitting or screwed form at appropriate locations on the base body can be formed. It is possible to extend and form a reinforcing shaft portion in a concentric and integrated manner in the inner cavity of the inner wall of the inner surface of the cylindrical body. Friction for fixing made of elastic material over the range to be joined to the wall It can be obtained by forming a.

    The tailstock is in a state in which the other end side of the base body, which has one end side attached to the chuck portion of the electric rotary tool, can be maintained concentrically during the sharpening process, and can be rotated about the concentricity. It can be supported so that it can be joined or fitted to the other end of the rotating base body so that it can slide and rotate, or it can be joined to the other end of the base body, It must have a bearing mechanism that can be fitted or linked and can rotate together with the base body. When the base body is attached or detached, the base body can be moved back and forth in the direction of the axis of rotation. When mounting, the base should be fixed with sufficient strength to the base or a suitable place to change the base, and the distance from the electric rotary tool should be kept constant. Others when to release the fixed and fixed relative position change to it, the fixed unlocking and it is desirable that the one provided with the clamping mechanism and screw tightening mechanism or the like can be performed with a simple operation.

Abrasives function to make it possible to sharpen the multi-layered lacquered surface of the change coating efficiently, and polish the glossy and glossy surface without giving unnecessary scratches to the multi-layered lacquered surface. Abrasive materials that are possible and can reach the working layer efficiently must be selected, such as various types of abrasive paper, abrasive cloth, sandpaper, paper paper, cloth paper, water resistant paper, grinding stone, sharpening charcoal ( Shizuoka charcoal, park charcoal, rosy charcoal, black charcoal, etc.), Japanese paper, cloth, etc. should be selected so that they can be efficiently polished, and polishing pads, corn flour, wood bandits, etc. should be used The polishing material can be finished to the desired matte or glossy surface by polishing the surface of the lacquer coating like an abrasive, or the lacquered surface can be fine. Lacquer that can fill smooth irregularities and form a smooth surface In addition to being able to be rubbed with other paints, etc., it can be made the same as the above-mentioned abrasive, and gloss lacquer is soaked into cloth, cotton, Japanese paper, etc. It can be assumed.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    The example shown in the perspective view of the sharpening device of FIG. 1, the perspective view of the sharpening device equipped with the substrate body of FIG. 2, and the perspective view of the sharpening operation state of FIG. The surface of the pen shaft 6, which is a synthetic resin base body integrally formed with a screw part 62 for mounting a pen tip side component, is formed on one end side of the pen shaft 6. The multi-layered lacquer coating surface 63 by the Tang coating technique, which repeats painting and drying in sequence, each of the wife coating and the top coating, is formed so as to be continuous in the circumferential direction, and after sufficiently curing, The screw portion 62 of the pen shaft 6 that is not lacquered can be appropriately controlled between 0 and 2500 rpm, and the screw portion 62 and the chuck portion 21 of the electric rotary tool 2 fixed on the predetermined base 11 Formed threaded part 52 to be screwed The electric rotary tool is mounted so that it can be driven to rotate about its rotational axis C via the dedicated jig 5, and the other end side is supported rotatably on the concentricity using the core push table 4. 2 with a moderate number of rotations, while rotating and starting in the screwing direction with the pen shaft 6 threaded portion 62, while pressing the polishing material 7 of surface roughness appropriately against the lacquer coating surface 63 and sharpening, A typical example in the method for producing a lacquered product according to the present invention, which consists of polishing and / or polishing by lacquering, is shown.

    Since the sharpening device 1 included in the present invention will be used in carrying out the method for producing the lacquered product, first, referring to FIG. 1 for the structure, it is made of wood or metal and has sufficient strength. The hand drill 2 as an electric rotary tool that can be appropriately controlled between 0 and 2500 rpm is placed on one side of the rectangular flat plate-like base 11 in which the chuck portion 21 faces sideways so as to face the opposite side. And is interposed between the upper surface of the base 11 and the lower side near the portion supporting the base end of the chuck portion 21, and the center of rotation of the chuck portion 21 is set to the base 11. A spacer 3 having a predetermined thickness dimension, which can be set parallel to the upper surface (horizontal), is mounted in a sandwiched manner to form a centering support mechanism 3, while the hand drill 2 At the end of the lip portion 22, a grip fixing bracket portion 12 that surrounds the upper periphery in a frame shape is attached, and the both ends of the tongue-shaped flange portions that are stretched and bent to reach the upper surface of the base 11 are respectively The fixing adjustment screws 13 and 13 are attached, and are screwed into a nut (not shown) that is embedded and fixed in advance so as to open in the vertical direction (the thickness direction of the base 11) in appropriate positions on the corresponding upper surface of the base 11. At the proper position near the rear end of the main body of the hand drill 2 in which the motor of the hand drill 2 is built and opposite to the chuck portion 21, the upper periphery of the motor built-in main body portion at the rear end is provided. Further, the tool body fixing bracket part 14 surrounding the shape is mounted, and the both ends of the tongue-shaped flange portions that are stretched and bent to reach the upper surface of the base 11 of the tool body fixing bracket part 14 are also provided. ,same Fixed adjusting screw 13 is mounted, the base 11 screwed against previously buried unillustrated nut top position, has to have been clamped.

    In this way, on the other side of the base 11 opposite to the hand drill 2 fixed to one side of the upper surface of the base 11, the object to be sharpened as shown in FIG. 2 and FIG. The height is set so as to straddle between the separation distance shorter than the length dimension of the pen shaft 6 and the separation distance exceeding the length dimension of the pen shaft 6 and does not interfere with the rotation center C of the chuck portion 21. A guide base 41 having guide rails 42 and 42 which are set and face each other across the rotation center C and which are parallel to the rotation center C is coupled and fixed, and rotates between the guide rails 42 and 42. A core pushing stand 4 is provided which is provided with a slider portion 43 fitted and mounted so as to be movable back and forth and slidable in the direction of the center C. From the tip portion of the slider portion 43 facing the chuck portion 21, a pen Abuts against the end of shaft 6 The core pushing head 44 that has a bearing and is rotatably supported is exposed, and a guide lever 41 and a clamp lever 45 that can be temporarily fixed are provided at the end of the slider 43. .

    The chuck portion 21 of the hand drill 2 is formed with a cylindrical chuck mounting shaft portion 51 on the proximal end side, formed on the distal end side on a cylindrical wall concentric with it, and is a base body on the inner peripheral wall surface. A dedicated jig 5 formed with a female screw portion 52 to be attached to which the male screw portion 62 formed on the tip end side of the pen shaft 6 can be screwed, and the chuck mounting shaft portion 51 is tightened and attached. When the pen shaft 6 is mounted from the vicinity of the center of the female screw portion 52 to be mounted of the dedicated jig 5, a substantially conical shape that fills the handle 61 of the pen shaft 6 is provided. The reinforcing shaft portion 53 can be concentrically extended and formed, and the outer peripheral wall surface of the reinforcing shaft portion 53 is in contact friction with the inner peripheral wall surface of the pen shaft 6 handle 61 to be mounted. Friction layer for fixing made of elastic material such as natural rubber, silicon rubber, foamed urethane, etc. 4 wearing the can be assumed that integrated.

    The sharpening device 1 having the above-described configuration can be effectively used in various stages from the base preparation stage to the polishing work that is the final finishing process in the implementation of the lacquer coating product manufacturing method. As for its use, it will be sequentially shown in the section of the operation of the following examples according to each work content of the lacquer coating product manufacturing method.

(Operation of Example)
In order to manufacture a pen shaft that has been subjected to Tsugaru coating by the lacquer coating product manufacturing method included in the present invention, first, the burrs left on the outer peripheral wall surface of the synthetic resin pen shaft 6 that is the base body. In order to adjust the ground surface by removing the like, the male screw portion 62 is screwed into the female screw portion 52 to be attached to the hand jig 2 of the sharpening device 1 and the dedicated jig 5 attached to the chuck portion 21. Attached so as to be concentric with each other, and the slider 43 of the core pusher 4 is slid along the guide rails 41 and 42 in the direction indicated by the two-dot chain line arrow in FIG. Then, the core pushing head 44 is brought into contact with the end of the pen shaft 6 and the clamp lever 45 is tilted as shown by a solid arrow A in FIG. 2 to temporarily fix the core pushing head 44 and the guide base 41. , Hand drill 2 as appropriate between 0-2500rpm As shown by the solid line arrow B in FIG. 2, the non-mounting female screw portion 52 and the male screw portion 62 are rotationally driven in the direction in which they are engaged with each other, and polishing is performed as shown in FIG. The water-resistant paper 7 wound around the pad 71 is lightly pressed against the handle 61 of the rotating pen shaft 6 while being immersed in water, and the surface of the pen shaft 6 is finished with a smooth surface such as burrs and shrinkage formed during synthetic resin molding. After adjusting the ground and adjusting the ground by grinding, the clamp lever 45 is operated in the opposite direction to release the lock of the slider portion 43 and retracted to move the male screw portion 62 of the pen shaft 6 The dedicated jig 5 is unscrewed and removed from the female thread portion 52 to be mounted, and the process goes to the setting process.

    In the gimmicking process, lacquered lacquer (trimming lacquer) is attached to the outer peripheral wall surface of the handle 61 of the pen shaft 6 by using a gimmick, and placed in a lacquer bath for a predetermined period to be cured. After drying, apply a thin brush of yellowish color lacquer and place in a lacquer bath to cure. In the coloring process, red and green color lacquer is brushed in a checkered pattern, transferred to the lacquer bath again and cured, and in the subsequent painting process, the black lacquer is brushed across the entire surface of the pattern 61 and again. It can be cured in the lacquer bath, brushed with the color lacquer selected as appropriate in the wife coating process, and then tinned or satin powder can be applied, and then cured in the lacquer bath. It is assumed that green lacquer is brushed on the entire surface of 61, transferred to a lacquer bath again, and cured to form a multilayered lacquer coating surface 63 by a traditional technique of tang-coating.

    In the top coating process, green lacquer is painted, but red lacquer can be applied to make red-raised Tang, or dark-mesh lacquer can be painted to finish it in candy-colored Ra-ra Yes, it is desirable that the color lacquer used in the wife coating process should be symmetrical with the color lacquer used in the top coating process so as to make the Tang coating pattern stand out. In addition, the pen shaft 6 at each stage of each lacquering process is attached to the sharpening device 1 and the uneven surface shape by the mechanism, the multi-layered lacquer coating surfaces, etc. are not lost in the same manner as the base adjustment. It is possible to improve the adhesion between the lacquer layers of each color by adjusting the base to an appropriate degree of polishing.

    Thus, the pen shaft 6 on which the multilayer lacquered surface 63 is formed over almost the entire surface of the handle 61 is moved to the sharpening process, and the male screw portion 62 on one end side thereof is sharpened. 5 is screwed and attached to the female thread portion 52 to be mounted, and the clamp lever 45 is rotated so that the core pushing head 44 is concentrically pressed to the other end side, and the rotation center of the chuck portion 21 of the hand drill 2 is rotated. The hand drill 2 is firmly fixed so as to be concentrically arranged in C, and the hand drill 2 is rotated and started to have an appropriate rotational speed within a rotational speed range of 0 to 2500 rpm. The multi-layered lacquered surface 63 over the entire length of the handle 61 is sharpened until it is exposed, and then the handle is left attached to the sharpening device 1. 61 all After completing the polishing and polishing process, the clamp lever 45 is released, the slider 43 is retracted, and the male thread 62 of the pen shaft 6 is disengaged from the female thread 52 for mounting of the dedicated jig 5 and detached. Let us get the pen shaft 6 lacquered by traditional Tang technique. The multi-layered lacquered surface 63 of the pen shaft 6 is a typical Tsugaru coating among various Tsugaru coatings, but can also be manufactured by other nanako coating or crest coating. It is.

    Furthermore, when the reinforcing shaft portion 53 is provided in the dedicated jig 5, the substantially cylindrical pen shaft 6 is reinforced and supported from the hollow interior over substantially the entire length thereof, and is pressed by the pressing force applied to the outer peripheral wall surface during grinding. It is possible to reliably prevent the peripheral wall of the pen shaft 6 from being elastically deformed to cause uneven polishing, and can be joined to the peripheral wall surface of the reinforcing shaft portion 53 with high friction with the inner peripheral wall surface of the pen shaft 6. When the fixing friction layer 54 is provided, the rotational driving force of the hand drill 2 transmitted through the dedicated jig 5 is not concentrated on the pen shaft 6 male threaded portion 62, but is passed through the fixing friction layer 54. Accordingly, the pen shaft 6 can be dispersed and transmitted to almost the entire pen shaft 6 to prevent an excessive concentrated load from being applied to the male screw portion 62 and to prevent the pen shaft 6 from being twisted or bent.

(Effect of Example)
In addition to the features described in the section of the effect of the present invention, the lacquer coating product manufacturing method of the embodiment having the above-described configuration, and the sharpening device 1 used therefor, as shown in FIGS. 1 to 3, When Tang is applied to the pen shaft 6 made of a synthetic resin molding, which is a typical technique of Tsugaru coating, by using the sharpening device 1 for the base adjustment work such as deburring and correction of slight unevenness, it is possible to obtain In the past, it was necessary to have a skillful and persevering work of manually applying water paper after removing burrs using a scissors or a leuter so that rapid polishing could be realized. The time-consuming work can be achieved easily and with high quality, and the precise cross-sectional shape of the pen shaft 6 that is closer to a perfect circle in a relatively short time, and the tightly adhered to the lacquer. And a green body surface can be obtained.

    In the above embodiment, the sharpening lacquer is applied to the handle 61 of the pen shaft 6 using a gimmick in the gimmicking process based on the traditional technique of tang-coating. Spotted pattern setting work while slowly rotating the chuck portion 21 by manual feed while the hand drill 2 is stopped with respect to the pen shaft 6 that is supported in a substantially horizontal and freely rotating manner on 1 Without removing the pen shaft 6 after the base adjustment as described above, a dust removing ventilation device or a forced circulation type air purifier is installed and used together to wipe off the abrasive powder. By removing it, the efficiency can be greatly improved by promptly shifting to the setting process.

    In addition, in each lacquer coating process that follows the gimmick process, from painting, coloring, lu coating, wife coating, and top coating, it is indispensable to remove the pen shaft 6 while waiting for the coating surface to harden after being transferred to the lacquer bath. However, by attaching the pen shaft 6 to the sharpening device 1 each time and supporting the pen shaft 6 so as to be rotatable around the rotation center C, it is possible to ensure the stability and accuracy of the operation of each painting process and to quickly Even when the work is performed, there is an advantage that coating defects and quality unevenness can be remarkably reduced, and high quality can be stably ensured as compared with conventional manufacturing methods.

(Conclusion)
As described above, the lacquer coating product manufacturing method of the present invention and the sharpening device used therefor can achieve the intended purpose evenly by the new configuration, and the sharpening device used for manufacturing the lacquer coating product. It is easy to manufacture, can be made small and light enough, can be manufactured relatively inexpensively, and by using it, compared to traditional lacquering traditional techniques that rely only on traditional manual work It is possible to achieve remarkable efficiency and improve the quality of lacquer ware, and it is possible to raise the productivity up to about 5 times, making it possible to achieve a product price reduction of about 30 to 40% and lower price. Moreover, because it enables us to supply a large amount of high-quality full-fledged lacquerware on the market, it conveys the goodness of lacquered products to many consumers and creates an opportunity to expand sales. As a result, lacquer craftsmen Techniques The area of lacquer ware specializing in local lacquering and its related parties, who have been making lacquering as a local industry, is also secured, and from various sales industries such as office supplies stores and daily necessities stores. It is expected to become widely used and spread widely.

The drawings show a typical embodiment that embodies the technical idea of the lacquer coating product manufacturing method of the present invention and the sharpening device used therefor.
It is a perspective view which shows the sharpening apparatus included by this invention. It is a perspective view which shows the sharpening apparatus which mounted | wore with the pen axis | shaft. It is a perspective view which shows the sharpening work state of a pen axis | shaft.

Explanation of symbols

1 Sharpening device
11 Same base
12 Grip fixing bracket
13 Same fixing screw
14 Fixing bracket for tool body 2 Hand drill (electric rotary tool)
21 Chuck part
22 Grip part 3 Centering mechanism (spacer)
4 core push stand
41 Guide stand
42 Same guide rail
43 Same slider
44 Concentric pushing head
45 Clamp lever 5 Dedicated jig
51 Same Chuck mounting shaft
52 Female thread for mounting
53 Same reinforcing shaft
54 Friction layer for fixing 6 Pen shaft
61 Same pattern
62 Same male thread
63 Same multi-layer lacquered surface 7 Water resistant paper (abrasive)
71 Same polishing pad C Center of rotation

Claims (9)

    Form a multi-layered lacquered surface by a change coating technique at least on the surface of an approximately columnar or cylindrical substrate body that rotates around a certain axis so that it continues at least in the circumferential direction. After curing, the base body is not lacquered, and at least a suitable location on one end side is directly against the chuck part of the electric rotary tool fixed at a predetermined location, or through a dedicated jig It is mounted so that it can be driven around the axis of rotation, and if necessary, the other end is supported in a concentric manner using a tailstock, and the electric rotary tool is started at an appropriate rotational speed. A method for producing a lacquer coating product, wherein a polishing material having a surface roughness is lightly pressed onto the surface of the lacquer coating while sharpening and polishing is performed, followed by polishing and / or lacquering.     Form a multi-layered lacquered surface by a change coating technique at least on the surface of an approximately columnar or cylindrical substrate body that rotates around a certain axis so that it continues at least in the circumferential direction. After curing, the base body is not lacquered, and at least a suitable location on one end side is directly against the chuck part of the electric rotary tool fixed at a predetermined location, or through a dedicated jig It is mounted so that it can be driven around the axis of rotation, and if necessary, the other end is supported in a concentric manner using a tailstock, and the electric rotary tool is started at an appropriate rotational speed. The surface of the lacquered surface is gently pressed against the lacquered surface to sharpen it, and then the base body is rotated at an appropriate number of revolutions with the same electric rotary tool so that the polishing material is pressed lightly. Glazing Lacquer painted manufacturing method characterized by.     Approximate columnar or cylindrical shape that rotates around a certain axis, and the appropriate position on the surface of the base body made of synthetic resin, each of the device, coating, coloring, Lu coating, wife coating, top coating, or device, After forming the multilayered lacquered surface by the technique of tangling, which repeats painting and drying in sequence, painting and drying, respectively, in order to continue at least in the circumferential direction, and after sufficiently curing, A chuck part of an electric rotary tool fixed on a predetermined base, which is appropriately controllable between 0 and 10,000 rpm, preferably 0 to 2500 rpm, at an appropriate place on the base body, which is not lacquered, at least on one end side It is attached to the rotation shape around the rotational shape axis directly or via a dedicated jig, and further supported on the other end side in a concentric manner using a core push stand, The electric rotary tool was started at an appropriate number of revolutions and lightly pressed with an abrasive with an appropriate surface roughness on the lacquered surface to polish it, and then polished and / or polished with lacquer. A method for producing lacquered products characterized by     On the surface of the pen shaft, which is a base body made of a synthetic resin in which a screw part for mounting a pen tip side part is integrally formed on one end side with a substantially cylindrical shape rotating around a certain axis, A multi-layered lacquered surface by the technique of tang-painting, which repeats painting and drying in sequence, each of painting, painting, painting, painting, painting and drying, respectively. After being formed to be continuous in the circumferential direction and sufficiently cured, the lacquered threaded portion of the pen shaft can be appropriately controlled between 0 and 10000 rpm, preferably between 0 and 2500 rpm. Attached to the chuck part of the electric rotary tool fixed on the base so that it can be rotationally driven around its rotational axis through a dedicated jig formed with a threaded part that can be screwed with the threaded part, Furthermore, push the other end side in place Rotating and supporting the electric rotary tool at an appropriate rotational speed and in the screwing direction with the pen shaft screw part, and starting the abrasive material with an appropriate surface roughness on the lacquered surface. A method for producing a lacquered product, characterized in that the material is lightly pressed and sharpened, and then polished and / or lacquered.     Rotation of the substrate body with respect to an electric rotary tool fixed on a predetermined base and freely controllable between 0 and 10,000 rpm, preferably 0 to 2500 rpm, and a chuck portion whose rotation axis is supported in a substantially horizontal posture. It can move forward and backward in a substantially horizontal manner between a distance shorter than the shape axial dimension and a distance sufficiently longer than the rotational axial dimension, and is temporarily fixed on the base at any forward and backward position. And a core push stand incorporating a bearing mechanism that enables smooth rotation at a joint with the other end of the base body, and the electric rotary tool chuck portion includes at least the base body. The sharpening apparatus used for the lacquer coating product manufacturing method as described in any one of the said Claims 1 thru | or 4 which assumes that the exclusive jig | tool which can be mounted | worn so that one end side can be rotationally driven is interposed.     A hand drill which is an electric rotary tool fixed on a predetermined base and freely controllable within a range of 0 to 10000 rpm, preferably 0 to 2500 rpm, and a chuck portion whose rotation axis is supported in a substantially horizontal posture, A distance that is shorter than the rotational shape axial direction dimension of the pen shaft that is integrally formed with the thread portion for mounting the pen tip side component on one end side, and a distance that is sufficiently longer than the rotational shape axial direction dimension. Can move forward and backward horizontally, and has an advance / retreat mechanism that can be temporarily fixed on the base at any advance / retreat position, and enables smooth rotation at the joint with the other end of the pen shaft. And a chuck for the hand drill with a dedicated jig having a wearable screw part that can be attached to the chuck part of the hand drill. did The lacquer coating product according to any one of claims 1 to 4, wherein the hand drill is configured such that the chuck portion thereof can be rotationally driven in the screwing direction with the pen shaft screw portion for each of the special jigs. Sharpening device used for manufacturing method.     When the dedicated jig is mounted on the substantially cylindrical substrate body, the reinforcing shaft portion that is filled in the inner cavity of the substrate body is concentrically stretched and formed integrally, and extends in the axial direction of the substrate body. The sharpening device according to any one of claims 5 and 6, wherein the sharpening device can be reinforced from the inside thereof.     A dedicated jig is formed by concentrically extending and forming a reinforcing shaft portion that becomes a filling state in the inner cavity of the pen shaft from the central portion that is on the tip side of the wearing screw portion, The sharpening device according to claim 6, wherein a fixing friction layer made of an elastic material is formed over an outer peripheral wall surface of the reinforcing shaft portion and a range where the reinforcing shaft portion is joined to the inner wall surface of the pen shaft. A tool that removably secures the grip fixing bracket part where the base is detachably fixed to the grip part of the hand drill and the rear end opposite to the chuck part in the motor built-in body part of the hand drill. A main body fixing bracket part, and a motor built-in main body part of the hand drill, which is arranged on the lower side near the chuck part, and has at least a vertical angle, preferably vertical and horizontal angles of the chuck part axis. The sharpening device according to claim 6, wherein a centering support mechanism that can be adjusted is provided.

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