JP2011251225A - Device for coating titanium oxide, and method of manufacturing coating of the titanium oxide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To coat a surface of a metal object such as a metal ball, by a titanium oxide such as titanium dioxide, while making a film thickness get uniform.SOLUTION: The metal ball 7 caught by a spiral groove 46 is conveyed along recessed grooves 44, 44, when a conveying rotary screw 42 is rotated. The conveyed metal ball 7 is rotated along a direction substantially orthogonal to an advancing direction of the metal ball 7, by rotation of the conveying rotary screw 42 and conveying rotary rollers 43, 43. One or a plurality of linear longitudinal grooves 47 is formed to be extended along longitudinal directions of outer circumferential faces of the conveying rotary rollers 43, 43, and a direction of the metal ball 7 is changed in every time of passing the metal ball 7 in the longitudinal groove 47. A rotational direction of the metal ball 7 is changed thereby, a direction of the metal ball 7 is changed variously in random, and the film thickness of the titanium dioxide sprayed to the surface of the metal ball 7 from a spray gun 48, to be coated thereon, gets substantially uniform ranging over the whole surface of the metal ball 7.

Description

  The present invention relates to an apparatus for coating titanium oxide and a method for producing a coating of titanium oxide, and more particularly to an apparatus, method and production method for coating a surface of a metal object such as a metal sphere with titanium oxide such as titanium dioxide.

  Metal objects such as metal spheres are usually conductive to pass current. However, depending on the location where a metal object such as a metal sphere is used, it may be better to insulate without passing an electric current. For example, it is possible to insulate a metal ball in a ball bearing without passing an electric current to prevent leakage of electric equipment such as an electric vehicle. Moreover, since the surface becomes slippery when it is coated with titanium oxide, the pachinko sphere is made more slippery to prevent clogging of the flow of the pachinko sphere.

Registered Utility Model No. 3116965 Japanese Patent Laid-Open No. 5-140475 JP 2009-72753 A

  The present invention has been made to solve the above-described problems, and an object of the present invention is to quickly coat a large amount of titanium oxide such as titanium dioxide on the surface of a metal object such as a metal sphere.

  In order to achieve the above object, an apparatus for coating titanium oxide and a method for producing a titanium oxide coating according to the present invention rotate around the circumference of a rotating shaft and carry a plurality of long transports along the rotating axis. The gap between the plurality of transport rotators is smaller than the size of a large number of metal objects coated with titanium oxide, and the heated metal object along the gaps is not in the transport rotator. A transport rotating body that is transported while being rotated from one side to the other, and titanium oxide is sprayed toward the metal object that is transported along the transport rotating body, and titanium oxide is sprayed on the surface of the metal object. And a spray body for covering the surface.

  Thereby, a large amount of titanium oxide such as titanium dioxide can be coated on the surface of a metal object such as a metal sphere quickly. Further, when titanium oxide is sprayed on the metal object, the metal object is rotated while being conveyed, so that the titanium oxide is applied almost uniformly on the surface of the metal object.

(1) Overall apparatus for coating titanium oxide FIG. 1 shows the overall apparatus for coating a titanium oxide or an apparatus for executing a method for producing a coating of titanium oxide. This device comprises a storage unit (supply unit) 1, a heating unit 2, a spray unit (application unit) 3, a cooling unit 4, a drive source, and the like, and these are provided on a frame body 9 that supports the entire device. ing.

  A number of metal objects coated with or coated with titanium oxide are the same metal balls 7 made of iron as pachinko balls, and coated with titanium dioxide. A large number of metal balls 7 are stored in the storage unit 1 and supplied to the next heating unit 2 one by one or two at a time. The metal spheres 7 heated by the heating unit 2 are sprayed with titanium dioxide by the spray unit 3 and cooled by the cooling unit 4.

(2) Storage unit (supply unit) 1
2, 3, 4, and 5 show the storage unit (supply unit) 1. The storage case 11 (storage body) has a rectangular parallelepiped shape, in which a large number of metal balls 7 are placed from above, and a large number of metal balls 7 are stored therein. The storage case 11 is fixed on an inclined plate 12, and a jack 13 is provided on the frame body 9 below the inclined plate 12.

  By moving the jack 13 up and down, the inclination of the inclined plate 12 and the storage unit 11 is changed, and the optimum inclination is selected so that the metal ball 7 flows smoothly and is supplied. When the number of metal balls 7 in the storage case 11 is large, the inclination is gentle, and when the number of metal balls 7 is small, the inclination is steep. As a result, supply of the metal ball 7 does not cause insufficient supply / excess or excessive supply / stagnation.

  The storage case 11 is long toward the front and the back, and the bottom surface of the storage case 11 is inclined from the back edge and the front edge toward the center line / center. On the other hand, in the vicinity of the center line / near the center line at the bottom of the slope, a roof-like separation portion 14 (separator) that rises and slopes is formed. When the metal sphere 7 falls and moves on the separating portion 14, it is dispersed and separated almost uniformly on the back side and the near side.

  A pair of vertical plate-like upper and lower plates 15, 15 are provided on the front side and the rear side of the separation portion 14 so as to be movable up and down. The upper and lower plates 15, 15 push the large number of metal balls 7 from below, and the entire upper ends of the pair of upper and lower plates 15, 15 are inclined toward the separating portion 14 between them. The pressed metal balls 7 are dropped and moved between the pair of upper and lower plates 15 and 15.

  The front ends of the stirring inclined portions 17 and 17 at the upper edges of the upper and lower plates 15 and 15 are recessed by the size of one metal ball 7 to form lifting portions 16 and 16. Only one metal ball 7 is accommodated and lifted in the recesses of the lifting portions 16 and 16. The width of the stirring inclined portions 17 and 17 may be the same as the thickness of the upper and lower plates 15 and 15.

  The pair of lifting portions 16, 16 can move up and down together with the stirring plates 15, 15 and the slope portions 17, 17, and one metal ball 7 out of the many metal balls 7 in the storage case 11 Selected lifted. The inside of the lifting portions 16 and 16 has a groove shape, the bottom surface has a “U-shaped” or “V-shaped” cross section, and the top of the U-shaped or V-shaped is a vertical wall. It penetrates from to the rear surface.

  The metal balls 7 that are dropped and moved by the separating unit 14 fall toward the upper and lower plates 15, 15 and the lifting units 16, 16 on the near side and the far side and on the front side (right side in the figure). It will be moved. Thereby, the metal spheres 7 are evenly allocated to the two rows of supply lines of the metal spheres 7. The upper and lower plates 15 and 15, the slope portions 17 and 17, and the lifting portions 16 and 16 are moved up and down by air cylinders 18 and 18. This up-and-down movement is periodically executed at regular intervals.

(3) Heating unit 2
6, 7, and 8 show the heating unit 2. The pair of metal balls 7 and 7 lifted by the pair of lifting portions 16 and 16 is sent to the communication passages 21 and 21 and further to the heating paths 22 and 22. The communication passages 21 and 21 are substantially linear, and the heating paths 22 and 22 are zigzag in a sine curve between the front and back, and this zigzag is for two sine curves.

  The communication passage 21 and the heating path 22 are parallel to the inclined plate 12 and follow the inclination, and the metal balls 7 in the communication passage 21 and the heating path 22 are aligned in a line along the inclination. In this way, it is rolled and rotated in sequence and sent.

  A plurality of infrared heaters 23 are provided above and below the communication passage 21 and the heating passage 22. Far infrared rays or medium infrared rays are emitted from the infrared heaters 23, and the metal spheres 7 that are sent by rolling / rotating through the heating path 22 are 200 ° C. or higher, preferably 250 ° C. or higher, more preferably 350 ° C. or higher. To be heated. Since the heating path 22 is zigzag, the number of the metal spheres 7 passing through the infrared heaters 23 increases, and the time for one metal sphere 7 to pass increases, so that the heating is performed efficiently.

  Passing sensors 24 and 24 for the metal sphere 7 are provided on the communication paths 21 and 21 on the storage unit 1 side, and the passage interval, connection, and flow of the metal sphere 7 are measured. The passage sensor 24 is a photocoupler, a magnetic sensor, a Hall element, or the like. Air cylinders 25 and 25 (vibrating bodies) are provided under the heating paths 22 and 22, and the upper ends of the piston shafts of the air cylinders 25 and 25 are in contact with the lower surfaces of the entrances of the heating paths 22 and 22. Thus, the entrances of the heating paths 22 and 22 can be vibrated.

  If the interval between the metal balls 7 in the communication paths 21 and 21 is shortened, and the intervals between the metal balls 7 are clogged or connected, or the flow is stopped, the flow / stagnation is detected by the passage sensor. 24, 24, and the air cylinders 25, 25 are supplied with air and drawn out, and vibration is added to the entrances of the communication passages 21, 21 of the heating unit 2, and the clogged metal ball The interval of 7 is opened or flushed.

  A rotating shaft 26 is provided at the outlet of the heating paths 22 and 22 so as to be rotatable in the horizontal direction from the front to the back. Delivery caps 27 and 27 (delivery bodies) are fixed to the rotary shaft 26 at the positions of the outlets of the heating paths 22 and 22. The metal ball 7 is accommodated and sent to the next spraying unit 3.

  A rotary actuator or motor (not shown) is connected to the rotation shaft 26, and the rotation shaft 26 is rotated by driving the rotary actuator or motor, and the delivery cap 27 is rotated from upward to downward. The direction is changed, and the direction is restored by returning from downward to upward. The driving of the rotary actuator or motor is executed at regular intervals.

  The outer surface of the delivery cap 27 is a circumferential surface along the rotation direction, and the next metal ball 7 from the outlet of the heating path 22 does not fall when rotating. The inside of the delivery cap 27 is recessed in a large and small rectangular parallelepiped shape or a cube shape, the two recesses are arranged vertically, and an upper storage portion 30 is formed above, and a lower storage portion 29 is formed below. A plurality of storage portions 29 and 30 are formed.

  A metal ball 7 having a large diameter is stored in the upper storage portion 30, and a metal ball 7 having a small diameter is stored in the lower storage portion 29. The metal balls 7 having different sizes can be stored. A step portion 28 is formed between the upper storage portion 30 and the lower storage portion 29, and the large metal sphere 7 of the upper storage portion 30 does not fall into the lower storage portion 29, and the large metal sphere 7 Does not enter.

  The width, depth, or depth of the lower storage portion 29 is about half or less of the width, depth, or depth of the upper storage portion 30, and the upper storage portion 30 has one of the metal balls 7 of the lower storage portion 29. A metal ball 7 having a diameter of 2 to 2 times can be stored.

  Further, the lower end of the lower storage portion 29 substantially coincides with the lower end of the heating path 22. Therefore, two or more small metal balls 7 do not enter the lower storage portion 29 and the upper storage portion 30, and the small metal balls 7 can be reliably sent out one by one. Further, while the delivery cap 27 is rotating, the peripheral surface of the delivery cap 27 blocks the outlet of the heating path 22, so that the next metal ball 7 is stopped at the outlet of the heating path 22 and accidentally dropped. There is nothing to do.

(4) Spray part (application part) 3
9, FIG. 10, FIG. 11 and FIG. 12 show the spray part (application part) 3. The metal balls 7 and 7 ejected from the delivery caps 27 and 27 are dropped onto the inclined receiving plates 41 and 41. The tips of the receiving plates 41, 41 are narrowed, above the concave grooves 44, 44 formed on the gap between the single conveying rotary screw 42 and the two conveying rotary rollers 43, 43 sandwiching the conveying screw 42. Located in. The metal balls 7 and 7 from the receiving plates 41 and 41 are dropped into the concave grooves 44 and 44.

  Since the tips of the receiving plates 41 and 41 are thin, the metal balls 7 and 7 do not fall in any place other than the concave grooves 44 and 44. Inclined plates 45, 45 are fixed to the front and back sides of the transport rotating screw 42 and the transport rotating rollers 43, 43, and the leading edges of the inclined plates 45, 45 reach the top of the transport rotating rollers 43, 43. Therefore, the metal balls 7 and 7 do not fall to the near side or the back side of the transport rotation rollers 43 and 43.

  The gap between the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 is smaller than the size of the metal balls 7 and 7, and the metal balls 7 and 7 do not fall. The conveyance rotation screw 42 is a trapezoidal screw, and a helical spiral groove 46 is formed on the outer peripheral surface of the conveyance rotation screw 42.

  The conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 are long along the axis of rotation, and when the conveyance rotation screw 42 rotates, the metal ball 7 hung on the spiral groove 46 is behind / upstream of the conveyance rotation screw 42 (drawing). Then, it is conveyed along the concave grooves 44, 44 from the left to the front / downstream (right in the drawing). Note that the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 do not actually have a rotation axis, but are rotated, and therefore there is a center of rotation, that is, a virtual rotation axis.

  The metal balls 7 and 7 to be conveyed are rotated in a direction substantially orthogonal to the traveling direction of the metal balls 7 and 7 by the rotation of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43. One or more linear longitudinal grooves 47 extending along the longitudinal direction are formed on the outer peripheral surfaces of the transport rotation rollers 43 and 43, and the longitudinal grooves 47 are formed by the rotation of the transport rotation rollers 43 and 43. Each time the metal balls 7 and 7 are passed, the direction of the metal balls 7 and 7 is changed. Thereby, the direction of rotation of the metal balls 7 and 7 is changed, and the direction of the metal balls 7 and 7 is changed variously at random.

  A large number of spray guns 48 (spray bodies) are provided above the transport rotation screw 42 and the transport rotation rollers 43, 43. From the spray guns 48..., A solution of titanium dioxide is sprayed downward in the form of a mist, and this spraying is performed toward the rotating / conveying metal balls 7. This titanium dioxide solution is stored in the tank 6 of FIG. 1 and supplied to the spray guns 48 by a compressor (not shown) or the like.

  A diffusion plate 49 (diffusion body) having a chevron shape and a “reverse V-shaped” cross section is provided directly above the conveying rotation screw 42 and below the spray gun 48. On the diffusion plate 49, the atomized titanium dioxide from the spray gun 48 is directly sprayed and applied, and the applied titanium dioxide is diffused toward the metal spheres 7. ... is indirectly sprayed with titanium dioxide.

  As a result, the thickness of the titanium dioxide film sprayed onto and coated on the metal balls 7 is not biased. Furthermore, as described above, since the orientation of the metal spheres 7 is changed randomly, the thickness of the titanium dioxide applied and coated on the surface of the metal spheres 7 is almost uniform over the entire surface of the metal spheres 7. It becomes.

  The conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 rotate while changing the rotation speed, or rotate intermittently by repeating rotation and stop alternately. As a result, the thickness of the titanium dioxide film sprayed and coated on the metal spheres 7 is not biased, and is substantially uniform over the entire surface of the metal spheres 7. Such intermittent rotation is executed by inverter control of the motor of the drive source.

  Concave constricted portions 50, 50 are formed at the ends of the conveying rotation rollers 43, 43. In the constricted portions 50, 50, the gap between the conveying rotating screw 42 is large and the constricted portions 50, 50 are conveyed while being rotated. The metal spheres 7 coated with titanium dioxide fall from the constricted portions 50, 50.

  A spray shutter 51 is provided between the spray gun 48 and the transport rotary screw 42 and the transport rotary rollers 43 and 43, and opens and closes intermittently at regular intervals. Spraying of the spray guns 48 is performed at the opening and closing timing, and spraying is intermittently performed. Thereby, the film pressure of titanium dioxide coated on the surface of the metal sphere 7 is made uniform. Such intermittent driving is executed by program control or sequence control by a microcomputer.

(5) Internal structure of the transport rotation screw 42 and the transport rotation rollers 43 and 43 FIGS. 11 and 12 show the internal structure of the transport rotation screw 42 and the transport rotation rollers 43 and 43. Hereinafter, the conveyance rotation roller 43 will be described as an example. The center of the conveying rotation roller 43 is long cut into a cylindrical shape along the longitudinal direction to form a cavity portion 56, and the inner back surface / inner surface tip of the rear portion (left side of the figure) of the cavity portion 51 is conical concave / tapered. A conical recess 57 is formed by being drilled.

  A cylindrical rod-shaped heater 58 (heating body) that is long in the longitudinal direction is disposed and fixed in the hollow portion 56, and a conical convex conical cap 59 (conical convex portion) is provided on the outer surface of the rod-shaped heater 58. The tip of the conical cap 59 is rotatably fitted in the conical recess 57, and the center of the conical recess 57, the center of the conical cap 59, and the center of rotation of the transport rotating roller 43 coincide. ing.

  Thereby, even if the conveyance rotation roller 43 rotates, the rod heater 58 does not rotate, and the heating by the rod heater 58 is stabilized. Heat from the rod heater 58 is transmitted to the transport rotation roller 43, and the transport rotation roller 43 is heated.

  Therefore, the metal sphere 7 heated by the heating unit 2 is not heated and cooled by the spray unit 3 and the titanium dioxide sprayed on the surface of the metal sphere 7 is continuously spread or flows. When cooled, the titanium dioxide will not flow or spread.

(6) Cooling unit 4
13, 14 and 15 show the cooling unit 4. The metal balls 7 and 7 that have fallen from the constricted portions 50 and 50 of the spray unit 3 are dropped into the receiving passages 61 and 61. The receiving passages 61 and 61 have an elongated bowl shape, and the cross section is “V-shaped”, and the two inclined surfaces constituting the V-shaped cross section are inclined at approximately 45 degrees. , 61 is approximately three times the size of the metal sphere 7.

  When the metal balls 7, 7 fall on the receiving paths 61, 61, if the metal balls 7, 7 fall on the center of the receiving paths 61, 61, the metal balls 7, 7 hardly jump (do not repel). When the metal balls 7 and 7 fall off the center of the receiving paths 61 and 61, the inclined surfaces of the receiving paths 61 and 61 are inclined at approximately 45 degrees, so that the metal balls 7 and 7 jump substantially in the horizontal direction. .

  However, the bounced metal balls 7 and 7 hit the slope on the opposite side, jumped further upward, dropped and returned, and these were repeated, and while the bounces in the receiving passages 61 and 61 were repeated, The splash is attenuated and the metal balls 7 and 7 are stabilized at the center in the receiving paths 61 and 61. Thereby, the dropped metal balls 7 and 7 do not jump out of the receiving paths 61 and 61, and the metal balls 7 and 7 can be reliably sent out.

  The angle between the two inclined surfaces of the receiving path 61 may be 30 degrees to 60 degrees, but 45 degrees is desirable. The width of the receiving passages 61 and 61 may be at least twice the size of the metal sphere 7, and may be 2.5 times, 3 times, 3.5 times, 4 times, 5 times,. It is less likely to jump out, but about three times is desirable from the balance with the arrangement space. If it is less than twice, the number of metal balls 7 jumping out increases rapidly.

  The receiving paths 61 and 61 are slightly inclined, and the ends of the receiving paths 61 and 61 are formed on a gap between the transport rotating screw 62 and the two transport rotating rollers 63 and 63 sandwiching the transport rotating screw 62. The metal balls 7 and 7 that are located on the concave grooves 64 and dropped from the tips of the receiving passages 61 and 61 are dropped into the concave grooves 64 and 64.

  Since the receiving passages 61 and 61 are V-shaped in cross section and are positioned on the concave grooves 64 and 64, the metal balls 7 and 7 do not fall on any part other than the concave grooves 64 and 64. Inclined plates 65, 65 are fixed to the front and back sides of the transport rotating screw 62 and the transport rotating rollers 63, 63, and the leading edges of the inclined plates 65, 65 reach the top of the transport rotating rollers 63, 63. Therefore, the metal balls 7 and 7 do not fall to the near side or the back side of the transport rotation rollers 63 and 63.

  The gap between the conveyance rotation screw 62 and the conveyance rotation rollers 63 and 63 is smaller than the size of the metal balls 7 and 7, and the metal balls 7 and 7 do not fall. The conveyance rotation screw 62 is a trapezoidal screw, and a helical spiral groove 66 is formed on the outer peripheral surface of the conveyance rotation screw 62.

  The conveyance rotation screw 62 and the conveyance rotation rollers 63 and 63 are long along the axis of rotation, and when the conveyance rotation screw 62 rotates, the metal ball 7 with the spiral groove 66 is placed behind / upstream of the conveyance rotation screw 62 ( It is conveyed along the concave grooves 64, 64 from the left in the drawing to the front / downstream (right in the drawing). Note that the conveyance rotation screw 62 and the conveyance rotation rollers 63 and 63 do not actually have a rotation axis, but are rotated, and therefore there is a center of rotation, that is, a virtual rotation axis.

  Concave constricted portions 67, 67 are formed at the ends of the conveying rotation rollers 63, 63. In the constricted portions 67, 67, the gap between the conveying rotating screw 62 is large and has been conveyed. The metal balls 7 fall from the constricted portions 67 and 67. The dropped metal balls 7 and 7 are dropped onto the feed rods 68 and 68 as a finished product coated with titanium dioxide and accumulated in a finished product box (not shown).

  An air blower 69 is provided on the transport rotation screw 62 and the transport rotation rollers 63 and 63, and the metal ball 7 transported from the blower blower 69 on the transport rotation screw 62 and the transport rotation rollers 63 and 63. Air is applied to… and then cooled and dried.

  An intake port 70 is provided under the transport rotation screw 62 and the transport rotation rollers 63, 63, and air applied to the metal balls 7 is sucked from the blower blower 69, and the air is purified by a filter or the like, and then blown again. It is sent to the blower 69.

(7) Drive source, etc. A plurality of motors (not shown) are installed as the above-mentioned drive sources, and the power of the motors is a chain (not shown), a gear mechanism (not shown), etc. , The conveyance rotation rollers 63 and 63, the conveyance rotation screw 42, the conveyance rotation rollers 43 and 43, and the like.

  In addition to the motor described above, the air cylinder 25, the delivery cap 27, the spray gun 48, the blower blower 69, the rod heaters 58, 59, and the infrared heater 23 are driven and energized, such as an air cylinder that moves the stirring plate 15 and the lifting unit 16 up and down. It is executed sequentially in time series by microcomputer, sequence, or manual operation.

  Storage unit 1 (supply unit), heating unit 2, spray unit 3 (application unit), cooling unit 4, drive source, tank 6, metal ball 7, frame 9, storage case 11 (storage unit), inclined plate 12, Jack 13, separation part 14 (separation body), stirring plate 15 (stirring body), lifting part 16 (lifting body), communication passage 21, heating path 22 (path body), infrared heater 23 (heating body), passage sensor 24 (Detection body), air cylinder 25 (vibration body), rotating shaft 26, delivery cap 27 (delivery body), step portion 28 (step portion), lower storage portion 29 (storage portion), upper storage portion 30 (storage portion) ), Receiving plate 41, transport rotating screw 42 (transport rotating body), transport rotating roller 43 (transport rotating body), concave groove 44, inclined plate 45, spiral groove 46, longitudinal groove 47, spray gun 48 (spray body), Diffusion plate 49 (diffuser), constriction 50, cavity 56, circle Concave portion 57, rod heater 58 (heating body), conical cap 59 (conical convex portion), receiving path 61 (receiving portion), transport rotating screw 62 (transport rotating body), transport rotating roller 63 (transport rotating body), concave groove 64, the inclined plate 65, the spiral groove 66, the constricted portion 67, the feed rod 68, the blower blower 69, and the air inlet 70 are made of metal such as aluminum and stainless steel, but part or all of them are made of resin, rubber, It may be made of wood, carbon, ceramic, glass, cloth, a composite / mixture / multilayer laminate, or the like.

(8) Other Embodiments The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 may be further provided, the conveyance rotation roller 43 may be one, or the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 may be interchanged. good.

  A plurality of spiral grooves 46 on the surface of the conveyance rotation screw 42 may be formed instead of one, and a plurality of the longitudinal grooves 47 of the conveyance rotation rollers 43 and 43 may be formed instead of one. The slope of the spiral groove 46 may be steeper and the spacing between the spiral grooves 46 may be large. The longitudinal groove 47 is linear along the longitudinal direction, but may be slightly inclined.

  The spiral groove 46 of the conveyance rotation screw 42 may be omitted. In this case, the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 are inclined along the direction in which the metal ball 7 is sent. Further, the longitudinal groove 47 may be omitted.

  Various irregularities may be formed on the surfaces of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43. The conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 may be cylindrical, columnar, conical, truncated cone, pyramid with many side surfaces, truncated pyramid, or the like. Thereby, the rotation of the metal sphere 7 becomes further random, the rotation direction changes variously, and the titanium dioxide film is uniformly formed.

  The surfaces of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 may have a corrugated, trapezoidal, triangular or rectangular shape, and one peak may enter the other valley. As a result, the metal spheres 7 are sent in a zigzag shape, the rotation of the metal spheres 7 becomes further random, the direction of rotation changes variously, and a titanium dioxide film is uniformly formed.

  It is not all of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 but a part of them that changes the rotation speed or alternately and intermittently rotates and stops. The heater is provided inside and heated, not all of the transport rotation screw 42 and the transport rotation rollers 43 and 43, but a part of them.

  The diffuser plate 49 may have a large or small unevenness on the surface, in addition to a mountain shape composed of two flat slopes, and in addition to a convex shape, a large number of blades arranged in a concave shape, a horizontal plane, a blade shape, and a spiral shape, A spiral bar shape, a corrugated plate shape, or the like may be used, and a plurality of these may be arranged in parallel or stacked. These may be fixed, rotate, reciprocate, or move.

  The inner surface of the tip of the hollow portion 56 may project in a conical shape, and a conical concave cap may be attached to the tip of the rod-shaped heater 58, and these may be fitted together. In addition, holes are made in both ends of the conveyance rotation roller 43 (conveyance rotation screw 42), the bar heater 58 is penetrated through the center, and the conveyance rotation roller 43 (conveyance rotation screw 42) is rotated around the rod heater 58. As long as the rod heater 58 does not rotate and the transport rotation roller 43 (transport rotation screw 42) can rotate, any structure may be used.

  The spray of titanium dioxide may be applied by a spray gun, nozzle spray, immersion of titanium dioxide in a storage pool, application with a rotating brush brush, or the like. In addition to titanium dioxide, titanium monoxide and other titanium oxides may be applied. If such a titanium oxide is applied to the metal sphere 7, effects such as insulation, durability, friction reduction, and anti-glossiness can be obtained.

  The metal sphere 7 may be iron, stainless steel, aluminum, copper, chromium, tin, zinc, nickel, silver, platinum, gold, stainless steel, tungsten, alloys thereof, a mixture / multilayer laminate thereof, or a resin. It may be made of rubber, wood, carbon, ceramic, glass, cloth, composite / mixture / multilayer laminate, or the like.

    Storage unit 1 (supply unit), heating unit 2, spray unit 3 (application unit), cooling unit 4, drive source, tank 6, metal ball 7, frame 9, storage case 11 (storage unit), inclined plate 12, Jack 13, separation part 14 (separation body), stirring plate 15 (stirring body), lifting part 16 (lifting body), communication passage 21, heating path 22 (path body), infrared heater 23 (heating body), passage sensor 24 (Detection body), air cylinder 25 (vibration body), rotating shaft 26, delivery cap 27 (delivery body), step portion 28 (step portion), lower storage portion 29 (storage portion), upper storage portion 30 (storage portion) ), Receiving plate 41, transport rotating screw 42 (transport rotating body), transport rotating roller 43 (transport rotating body), concave groove 44, inclined plate 45, spiral groove 46, longitudinal groove 47, spray gun 48 (spray body), Diffusion plate 49 (diffuser), constriction 50, cavity 56, circle Concave portion 57, rod heater 58 (heating body), conical cap 59 (conical convex portion), receiving path 61 (receiving portion), transport rotating screw 62 (transport rotating body), transport rotating roller 63 (transport rotating body), concave groove 64, the inclined plate 65, the spiral groove 66, the constricted portion 67, the feed rod 68, the blower blower 69, and a part or the whole of the intake port 70 may be omitted, or may be replaced with another equivalent. Two or more of these may be combined and used together.

(9) Effects of other inventions [1] A step of heating a metal object coated with titanium oxide, and a plurality of conveying rotators that are long along the axis of rotation. The gap is smaller than the size of a large number of metal objects to be coated with titanium oxide, and the heated rotating metal object passes along the groove formed on the gap by the conveying rotating body. A step of conveying while rotating toward the other, and spraying titanium oxide toward the metal object conveyed along the groove of the conveying rotating body to coat the surface of the metal object with titanium oxide And a method for producing a titanium oxide coating, comprising: a step of cooling the metal coated with the titanium oxide.

[2] A heating body that heats a metal object that is coated with titanium oxide, and a plurality of transport rotating bodies that are long along the axis of rotation, and the gaps between the plurality of transport rotating bodies are made of titanium oxide. A transport rotating body that is smaller than the size of a large number of metal objects to be coated and that transports the heated metal object while rotating from one of the transport rotating bodies to the other along a groove formed on the gap. And a spray body that sprays titanium oxide toward the metal object conveyed along the groove of the conveying rotating body and coats the surface of the metal object with titanium oxide, and the titanium oxide covers An apparatus for coating titanium oxide, comprising: a cooling body that cools the metal object.

[3] A diffusion body that directly applies titanium oxide sprayed from the spray body and diffuses the applied titanium oxide toward the metal object is provided on the transport rotating body. The apparatus for coating titanium oxide according to claim 2. Thereby, since the titanium oxide does not directly hit the metal object, the thickness of the titanium oxide film sprayed and coated on the metal object is not biased.

[4] A spiral spiral groove is formed on the outer peripheral surface of the transport rotator, and the metal object caught in the spiral groove is transported by the rotation of the transport rotator. An apparatus for coating the described titanium oxide. As a result, the titanium oxide is applied to the metal object at a slow rotation speed and a gentle conveyance slow speed of the metal object, and the thickness of the titanium oxide film to be coated is not biased.

[5] A longitudinal groove extending along the longitudinal direction is formed on the outer peripheral surface of the transport rotating body, and each time the longitudinal groove passes through the metal object by rotation of the transport rotating body, the orientation of the metal object The apparatus for coating titanium oxide according to claim 4, wherein: Thereby, the film thickness of the titanium oxide coated on the metal object is made uniform over the entire surface of the metal object.

[6] A part or all of the transport rotator, the transport rotator in which the spiral grooves are formed, or the transport rotator in which the longitudinal grooves are formed rotate while changing the rotation speed, or rotate intermittently. An apparatus for coating a titanium oxide according to claim 5. As a result, the thickness of the titanium oxide film sprayed onto and coated on the metal object is not biased and becomes substantially uniform over the entire metal object surface.

[7] A part or all of the transport rotator, the transport rotator in which the spiral groove is formed, or the transport rotator in which the longitudinal groove is formed is heated. Equipment for coating titanium oxide. Thereby, also in the spraying of titanium oxide, the metal object is heated and cooled, and the titanium oxide applied to the surface of the metal object flows and spreads uniformly.

[8] A part or all of the transport rotator, the transport rotator in which the spiral groove is formed, or the center of the transport rotator in which the longitudinal groove is formed is long along the longitudinal direction of the transport rotator. A heating body is provided, one of the outer surface of the front end of the heating body or the inner surface of the transport rotating body located at the front end is formed in a substantially conical convex shape, and the other is formed in a conical concave shape. 8. The apparatus for coating titanium oxide according to claim 7, wherein the center of the recess coincides with the rotation center of the transport rotary body, the heating body does not rotate, and the transport rotary body rotates. Thereby, a heating body does not rotate but the heating by a heating body is stabilized.

[9] An inclined storage body in which the titanium oxide is coated or stored with a large number of coated metal objects, and a large number of metal objects provided in the storage body so as to be movable up and down at the end of the inclination. A plurality of lifting bodies that lift at least one metal object from the inside, and at least a pair of stirring bodies that lifts together with the plurality of lifting bodies so as to move up and down, and separates the plurality of metal objects from below. The upper end of the stirrer is inclined to form a stirrer that moves the pressed metal object between the pair of stirrers, and the center of the pair of stirrers, and is moved from the stirrer. The apparatus for coating titanium oxide according to claim 2, further comprising a separator that moves the metal object substantially uniformly toward the pair of stirring bodies and the lifting body. Thereby, a metal object is equally allocated to a pair of lifting body which lifts a metal object.

[10] It is provided in a place where a large number of metal objects covered with or coated with the titanium oxide are dropped, and the metal objects that have dropped are sent out in a bowl-like shape with a V-shaped cross section. The apparatus for coating titanium oxide according to claim 2, further comprising a receiving part having a slope of approximately 30 degrees to 60 degrees and a width of at least twice the size of the metal object. Thereby, the fallen metal object does not jump out of a receiving part, but can send out a metal object reliably.

[11] A delivery body that accommodates a large number of metal objects coated or coated with the titanium oxide that has been sent, changes the direction almost at regular intervals, and further feeds out, and is formed in the delivery body The titanium oxide according to claim 2, further comprising: a plurality of step portions; and a plurality of storage portions that are formed to sandwich the plurality of step portions and can store metal objects having different sizes. Coating equipment. Thereby, the delivery time interval of the delivery metal object can be made constant, and this can be executed for metal objects of different sizes.

[12] A path body that feeds a large number of metal objects coated or coated with the titanium oxide that is sent in a line, a detection body that detects the flow of the metal objects in the path body, The apparatus for coating titanium oxide according to claim 1, further comprising: a vibrating body that vibrates the path body based on a detection result of a stagnation of the flow. Thereby, when the space | interval of a metal object is clogged and there is a stagnation, a vibration is added and the space | interval of a metal object is opened and it is made to flow smoothly.

  The surface of a metal object such as a metal sphere is coated with titanium oxide such as titanium dioxide so that the film pressure is uniform. When the transport rotation screw 42 is rotated, the metal ball 7 hung on the spiral groove 46 is transported along the concave grooves 44 and 44. The metal ball 7 to be conveyed is rotated in a direction substantially orthogonal to the traveling direction of the metal ball 7 by the rotation of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43.

  One or a plurality of linear longitudinal grooves 47 extending along the longitudinal direction of the outer peripheral surface of the transport rotation rollers 43, 43 are formed, and each time the longitudinal groove 47 passes through the metal sphere 7, The direction can be changed. Thereby, the direction of rotation of the metal sphere 7 is changed, the direction of the metal sphere 7 is changed randomly, and the film thickness of the titanium dioxide that is sprayed onto the surface of the metal sphere 7 from the spray gun 48 is coated with the metal. It becomes substantially uniform over the entire surface of the sphere 7.

1 shows an overall front view of an apparatus for coating titanium oxide or an apparatus for carrying out a method for producing a coating of titanium oxide. The front of the storage part (supply part) 1 and the heating part 2 is shown. The side surface of the storage part (supply part) 1 is shown. The plane of storage part (supply part) 1 is shown. The vicinity of the center of the storage unit (supply unit) 1 is shown. The front of the heating part 2 is shown. The plane of the heating unit 2 is shown. The delivery cap 27 (sending body) in the heating unit 2 is shown. The front of the spraying part (application part) 3 is shown. The plane of the spraying part (application part) 3 is shown. The internal structure from the side surface direction of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 vicinity in the spray part (application | coating part) 3 is shown. The internal structure from the front direction of the conveyance rotation screw 42 and the conveyance rotation rollers 43 and 43 in the spray part (application | coating part) 3 is shown. The front of the cooling unit 4 is shown. The plane of the cooling unit 4 is shown. The vicinity of the receiving path 61 (receiving part) of the cooling part 4 is shown.

DESCRIPTION OF SYMBOLS 1 ... Storage part (supply part), 2 ... Heating part, 3 ... Spraying part (application | coating part),
4 ... Cooling unit, 6 ... Tank, 7 ... Metal ball, 9 ... Frame,
11 ... Storage case (storage body), 12 ... Inclined plate,
13 ... Jack, 14 ... Separation part (separation body),
15: Upper and lower plates (stirring body, lifting body), 16 ... Lifting part (lifting body),
17 ... Stirring slope (stirring body), 18 ... Air cylinder (stirring body, lifting body)
21 ... Communication passage, 22 ... Heating path (path body),
23 ... Infrared heater (heating body), 24 ... Pass sensor (detection body),
25 ... Air cylinder (vibrating body), 26 ... Rotating shaft,
27 ... Delivery cap (delivery body), 28 ... Step part (step part),
29 ... Lower storage part (storage part), 30 ... Upper storage part (storage part),
41 ... backing plate, 42 ... transport rotating screw (transport rotating body),
43 ... Conveying rotation roller (conveying rotating body), 44 ... Concave groove,
45 ... inclined plate, 46 ... spiral groove,
47 ... longitudinal groove, 48 ... spray gun (spray body),
49 ... diffusion plate (diffuser), 50 ... constriction,
51 ... Spray shutter,
56 ... cavity, 57 ... conical recess,
58 ... Bar heater (heating body), 59 ... Conical cap (conical convex part),
61 ... receiving path (receiving portion), 62 ... transport rotating screw (transport rotating body),
63 ... Conveyance rotation roller (conveyance rotation body), 64 ... Concave groove,
65 ... inclined plate, 66 ... spiral groove,
67 ... Constriction part, 68 ... Sending bowl,
69 ... Blower blower, 70 ... Air intake.

Claims (12)

Heating a metal object to be coated with titanium oxide;
A plurality of transport rotators that are long along the axis of rotation, and the gaps between the plurality of transport rotators are smaller than the size of a large number of metal objects that are coated with titanium oxide. A step of transporting the heated metal object along a groove formed above the gap while rotating from one of the transport rotating bodies to the other;
Spraying titanium oxide toward the metal object conveyed along the groove of the conveying rotating body to coat the surface of the metal object with titanium oxide;
A method of producing a titanium oxide coating, comprising: a step of cooling the metal coated with the titanium oxide. A heating body for heating a metal object coated with titanium oxide;
A plurality of transfer rotators that are long along the axis of rotation, and the gaps between the plurality of transfer rotators are smaller than the size of many metal objects covered with titanium oxide, and are formed on the gaps. A transport rotator that transports the heated metal object while rotating the metal object from one side of the transport rotator to the other along the groove formed;
A spray body that sprays titanium oxide toward the metal object transported along the groove of the transport rotating body, and coats the surface of the metal object with titanium oxide;
An apparatus for coating titanium oxide, comprising: a cooling body for cooling the metal object coated with the titanium oxide.   The titanium oxide sprayed from the spray body is directly applied on the transport rotating body, and a diffusion body for diffusing the applied titanium oxide toward the metal object is provided. An apparatus for coating a titanium oxide according to claim 2.   4. The titanium according to claim 3, wherein a helical spiral groove is formed on an outer peripheral surface of the conveying rotator, and the metal object caught in the helical groove is conveyed by rotation of the conveying rotator. Equipment for coating oxides.   A longitudinal groove extending along the longitudinal direction is formed on the outer peripheral surface of the transport rotating body, and the rotation of the transport rotating body changes the orientation of the metal object every time the longitudinal groove passes through the metal object. The apparatus for coating titanium oxide according to claim 4.   A part or all of the transport rotator, the transport rotator formed with the spiral grooves, or the transport rotator formed with the longitudinal grooves rotate while changing the rotation speed, or rotate intermittently. An apparatus for coating a titanium oxide according to claim 5.   The titanium oxide according to claim 6, wherein a part or all of the transport rotator, the transport rotator formed with the spiral grooves, or the transport rotator formed with the longitudinal grooves are heated. Coating equipment.   A part or all of the transport rotator, a transport rotator formed with the spiral groove, or a center of the transport rotator formed with the longitudinal groove has a long heating body along the longitudinal direction of the transport rotator. One of the outer surface of the front end of the heating body or the inner surface of the conveying rotating body located at the front end is formed in a substantially conical convex shape, and the other is formed in a conical concave shape. The center of the conical convex portion or the conical concave portion The apparatus for coating titanium oxide according to claim 7, wherein the heating body does not rotate, and the transport rotating body rotates, which coincides with the rotation center of the transport rotating body. An inclined storage body in which a large number of metal objects coated or coated with the titanium oxide are stored;
A plurality of lifting bodies which are provided so as to be movable up and down at the end of the slope, and which lift at least one metal object from among a number of metal objects in the storage body;
It is at least a pair of stirring bodies that are lifted up and down together with the plurality of lifting bodies and push the numerous metal objects from below, and the upper ends of the pair of stirring bodies are inclined so that the pushed metal objects are paired with each other. An agitator that is moved between the agitators;
And a separator that is formed to be inclined substantially at the center of the pair of stirring bodies and moves the metal object moved from the stirring bodies substantially evenly toward the pair of stirring bodies and the lifting body. The apparatus for coating titanium oxide according to claim 2.   This V-shaped slope with a bowl-like shape and a V-shaped cross-section, which is provided at a place where a large number of metal objects coated or coated with the titanium oxide falls and sends out the metal objects that have fallen. The apparatus for coating titanium oxide according to claim 2, further comprising a receiving portion having an inclination of approximately 30 to 60 degrees and a width of at least twice the size of the metal object.   A sending body that stores a large number of metal objects coated or coated with titanium oxide that has been sent, changes the direction at almost regular intervals, and sends out further, and a plurality of steps formed in the sending body 3. The apparatus for coating titanium oxide according to claim 2, further comprising a plurality of storage portions formed between the plurality of step portions and capable of storing metal objects having different sizes. .   A path body that feeds a large number of metal objects coated or coated with titanium oxide that has been sent in a line, a detection body that detects the flow of metal objects in the path body, and a flow of the detection body that is stagnant The apparatus for coating titanium oxide according to claim 1, further comprising a vibrating body that vibrates the path body based on the detected result.

Images