JP2014019938A - Plating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plating device capable of increasing plating treatment efficiency without increasing an occupancy area.SOLUTION: In the plating device 10, a belt-like member 21 is subjected to plating treatment at a plating treatment part 17. In the plating device, a degreasing treatment part 13 of performing treatment to the belt-like member 21 before plating treatment; a first water-washing treatment part 14; a chemical polishing treatment part 15; a second water-washing treatment part 16; a hot water treatment part 18 of performing treatment to the belt-like member 21 after plating treatment; and a drying treatment part are arranged in series. A fifth driving roller part 55 and a sixth driving roller part 56 part provided at the plating treatment part 17 and also carrying the belt-like member 21 spirally to a height direction in a posture at which the surface and back surface of the belt-like member 21 is made into a direction along a vertical direction; and a plating tank 57 provided at the plating treatment part 17 and also performing plating treatment to the belt-like member 21 at a part to which the belt-like member 21 is lineally carried in a part to which the belt-like member 21 is spirally carried.

Description

  The present invention relates to a plating apparatus for plating a strip-shaped member such as a hoop material that forms an electronic component.

  Conventionally, in order to mass-produce electronic parts such as transistors, ICs and switches, connectors, and steel plate materials that require surface treatment, a strip member called a hoop material is plated. An example of a plating apparatus that performs plating on such a belt-shaped member is described in Patent Document 1. The plating apparatus described in Patent Document 1 has a supply reel and a take-up reel. In addition, a transport path for the belt-shaped member from the supply reel to the take-up reel is provided. The transport path includes a degreasing section, a water washing section, a chemical treatment section, a plating section, a neutralization section, and a hot water washing process. A plurality of processing units such as a drying unit and a drying unit are arranged in parallel to each other. In addition, drive rollers that are rotatable about a vertical axis are provided between the plurality of processing units.

  And in the plating apparatus described in patent document 1, the strip | belt-shaped member drawn | fed out from the supply reel is wound around a drive roller, and a conveyance direction is reversed. That is, the belt-like member is conveyed in a meandering manner in a horizontal plane, and when the belt-like member is conveyed linearly between the drive rollers, the processing is sequentially performed by a plurality of processing units. Each treatment is applied to the belt-like member. According to the plating apparatus described in Patent Document 1, since the belt-shaped member is meandered and conveyed, the exclusive area (space) of the entire apparatus can be reduced.

  On the other hand, when the plating object is a wire, as described in Patent Document 2, a spiral shape is formed between a winding drum disposed in the plating tank and a power supply drum disposed above the plating tank. A plating apparatus is used in which a wire is wound around and the plating is performed while moving the wire in the vertical direction between the power supply drum and the winding drum. However, when the strip member is plated, if the strip member is wound around the winding drum disposed in the plating tank, the inner surface of the strip member in contact with the winding drum cannot be plated.

Japanese Patent No. 3103753 JP-A-5-1332797

  As described above, when the object to be plated is a belt-like member, the rollers and drums for conveying and driving the belt-like member cannot be placed in the plating tank, so the belt-like member needs to be placed in the horizontal direction. is there. When plating is performed while the belt-shaped member is conveyed and moved in the horizontal direction, the area occupied by the plating apparatus must be increased. In particular, in order to increase the plating processing efficiency for the band-shaped member, in order to increase the transport speed of the band-shaped member, the area of the processing tank such as a plating tank must be increased, and an increase in the size of the plating apparatus is inevitable.

  An object of the present invention is to provide a plating apparatus capable of increasing the plating treatment efficiency for a strip-shaped member without increasing the exclusive area.

  The present invention is a plating apparatus that conveys a belt-like member in the longitudinal direction and performs plating treatment on the belt-like member in a plating treatment section, and is previously set on the belt-like member before plating the belt-like member. A pre-processing unit for performing a treatment, a post-processing unit for performing a predetermined process on the band-shaped member after performing a plating process on the band-shaped member, and a plating processing unit provided at intervals, and The belt-like member is provided in the plating processing section, and the belt-like member is spirally provided in a posture in which the front and back surfaces of the belt-like member are in a direction along the vertical direction. And a plating tank for performing plating treatment on the strip-like member a plurality of times at different heights at a portion where the belt-like member is conveyed linearly.

  According to the present invention, the belt-shaped member is conveyed in a spiral shape in the height direction in a posture in which the front and back surfaces of the belt-shaped member are in a direction along the vertical direction, and at a part when the belt-shaped member is conveyed spirally. It is conveyed in a straight line. For this reason, when a strip | belt-shaped member is conveyed linearly, in a location where a height direction differs, a strip | belt-shaped member can be plated several times. Therefore, the plating processing efficiency can be increased without increasing the exclusive area of the plating apparatus.

  According to the present invention, since the belt-like member is alternately wound around a plurality of driving rollers having different heights, the plating treatment length of the belt-like member per unit area can be increased.

  According to the present invention, since the plating tank is provided between the first transport mechanism and the second transport mechanism, the space between the first drive mechanism and the second drive mechanism in the horizontal plane. And the expansion of the exclusive area of the entire apparatus can be further suppressed.

It is a top view which shows the whole structure of the plating apparatus in this invention. In the plating apparatus of this invention, it is a side view which shows an example of a drive roller part. In the plating apparatus of this invention, it is a schematic diagram which shows an example of the winding state of the strip | belt-shaped member with respect to a drive roller part. It is a perspective view which shows an example of the processing tank used for the plating apparatus of this invention. It is a perspective view which shows the other example of the processing tank used for the plating apparatus of this invention. In the plating apparatus of this invention, it is a side view which shows the other example of a drive roller part. In the plating apparatus of this invention, it is a schematic diagram which shows the other example of the winding state of the strip | belt-shaped member with respect to a drive roller part. In the plating apparatus of this invention, it is a schematic diagram which shows the further another example of the winding state of the strip | belt-shaped member with respect to a drive roller part.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. A plating apparatus 10 of the present invention shown in FIG. 1 has an apparatus main body 11 formed by combining steel materials, steel plates and the like. The apparatus main body 11 has a substantially rectangular planar shape, and the apparatus main body 11 has long sides 11b and 11c parallel to each other and short sides 11d and 11e parallel to each other. On the apparatus main body 11, a supply unit 12, a degreasing unit 13, a first water washing unit 14, a chemical polishing unit 15, a second water washing unit 16, a plating unit 17, a hot water washing unit 18, and a drying process. The part 19 and the winding part 20 are arranged in series along the transport direction (transfer direction) of the band-shaped member 21. In the present embodiment, the conveyance direction of the belt-like member 21 mainly means a conveyance direction in a horizontal plane or a conveyance direction along the horizontal direction.

  The belt-like member 21 is made of a metal material, for example, a thin plate such as a nickel alloy, a copper alloy, an iron-based alloy, stainless steel, or titanium. When the target component is a transistor, lead portions (not shown) corresponding to the terminals of the transistor are formed in advance on the band-like member 21 by pressing or etching. Further, a transistor (not shown) is mounted on the belt-like member 21. Further, depending on the target component, a flat belt-like member 21 whose surface is not subjected to any processing is used. Furthermore, the target components include electronic components such as ICs and switches, connectors, functional materials and the like in addition to transistors. In the following description, for the sake of convenience, the case where the component that is the target of the belt-like member 21 is a transistor will be described as an example.

  The plating apparatus 10 is an apparatus for processing solder, for example, tin alloy, copper plating, nickel plating, silver plating, gold plating, or the like, on the metal portion of the band-shaped member 21, mainly the lead portion, by the plating processing portion 17. Hereinafter, the configuration of each mechanism and each processing unit will be described.

  The supply unit 12 is provided along one short side 11 d of the apparatus main body 11. The supply unit 12 includes a supply reel 22, and the supply reel 22 is configured to be rotated by an electric motor 23. The rotation shaft 23a of the supply reel 22 is rotatable around a horizontal axis. The band-shaped member 21 is wound around the supply reel 22 before the plating process is performed. Further, the supply unit 12 has a pair of guide rollers 24. The pair of guide rollers 24 is rotatable about a horizontal axis, and the pair of guide rollers 24 are supported by a movable base 25. The movable table 25 is configured to be movable in the horizontal direction along the guide rail 26. The supply unit 12 includes a direction changing roller 27. The direction conversion roller 27 is a mechanism that changes the conveyance direction of the belt-like member 21 within a horizontal plane. Further, the direction changing roller 27 is configured to be rotatable about a vertical axis. The pair of guide rollers 24 is disposed downstream of the supply reel 22 in the conveying direction of the band-shaped member 21, and the direction changing roller 27 is disposed downstream of the pair of guide rollers 24 in the conveying direction of the band-shaped member 21. .

  The degreasing unit 13 is provided downstream of the supply unit 12 in the conveyance direction of the band-shaped member 21. Further, the degreasing unit 13 is provided on the apparatus main body 11 at a location farther from the short side 11 d than the supply unit 12. The degreasing unit 13 includes a first drive roller unit 28 as a first transport mechanism and a second drive roller unit 29 as a second transport mechanism. The first drive roller portion 28 and the second drive roller portion 29 are arranged at a predetermined interval in the direction along the short side 11d. The first drive roller portion 28 is provided on the long side 11b side, and the second drive roller portion 29 is provided on the long side 11c side. As shown in FIG. 2, the first drive roller unit 28 is attached to a rotary shaft 30 that can rotate around a vertical axis A and different heights in the direction along the axis A with respect to the rotary shaft 30. Three drive rollers 31, 32, and 33 and an electric motor 34 that rotates the rotary shaft 30 are provided. The drive rollers 31, 32, and 33 are arranged coaxially and rotate integrally. The driving roller 32 is disposed under the driving roller 31, and the driving roller 33 is disposed under the driving roller 32.

  The rotating shaft 30 is rotatably supported by two bearings 35, and the two bearings 35 are attached to the apparatus main body 11 via a bracket 11a. The second drive roller unit 29 includes a rotation shaft 37 that can rotate around a vertical axis B, and two drive rollers 38 that are attached to the rotation shaft 37 at different heights in the direction along the axis B. 39 and an electric motor 40 that rotates the rotating shaft 37. The drive rollers 38 and 39 are arranged coaxially and rotate integrally. The drive roller 39 is disposed below the drive roller 38. The rotating shaft 37 is rotatably supported by two bearings 41, and the two bearings 41 are attached to the apparatus main body 11 via a bracket 11a.

  Thus, the 1st drive roller part 28 as a 1st conveyance mechanism arrange | positioned in the location which carries in the strip | belt-shaped member 21 in the degreasing process part 13, and the location which carries out the strip | belt-shaped member 21 from the degreasing process part 13 is an up-down direction. Have three drive rollers 31, 32, 33 arranged adjacent to each other. Further, the second drive roller unit 29 as the second transport mechanism disposed on the return side (reverse side) of the degreasing unit 13 has two drive rollers 38 and 39 that are one less than the first drive roller unit 28. Have The uppermost drive roller 31 of the first drive roller section 28 is on the carry-in side, and the vertical position of the drive roller 39 below the return-side second drive roller section 29 is the drive roller. 32 and the drive roller 33 are in an intermediate position. Further, the vertical position of the driving roller 38 on the upper side of the second driving roller portion 29 is an intermediate position between the driving roller 32 and the driving roller 31. Thus, the two drive rollers 38, 39 and the three drive rollers 31, 32, 33 are all arranged at different heights.

  The belt-like member 21 is wound around the driving rollers 31, 32, 33, 38, and 39 in the state shown in FIG. 3 with respect to the first driving roller portion 28 and the second driving roller portion 29. In FIG. 3, for the sake of convenience, the driving rollers 31, 32, and 33 constituting the first driving roller portion 28 are spaced apart in the height direction, and the driving rollers 38 and 39 constituting the second driving roller portion 29 are spaced apart from each other. It is shown with an interval in the vertical direction. Then, the belt-like member 21 is wound around the lowermost drive roller 33 of the first drive roller portion 28 to change the transport direction by about 90 degrees, and the belt-like member 21 is wound around the drive roller 39. Further, the belt-like member 21 is wound around the driving roller 32 after the conveyance direction is changed by about 180 degrees by the driving roller 39. Further, the belt-like member 21 is wound around the driving roller 32, the conveyance direction is changed by about 180 degrees, and is wound around the driving roller 38. Further, the belt-like member 21 is wound around the drive roller 38 and the conveyance direction is changed by about 180 degrees, and is wound around the drive roller 31. Furthermore, the transport direction of the belt-like member 21 is changed by about 90 degrees by the driving roller 31. As described above, the belt-like member 21 is wound around the drive rollers 31, 32, 33, 38, and 39 and reciprocates between the first drive roller portion 28 and the second drive roller portion 29. Further, the belt-like member 21 is conveyed linearly along the direction parallel to the short side 11d between the drive rollers.

  In addition, the degreasing unit 13 has two degreasing tanks 42. The two degreasing tanks 42 are disposed between the first drive roller unit 28 and the second drive roller unit 29 in the direction along the short side 11d. The two degreasing tanks 42 are formed in a longitudinal shape along a direction parallel to the short side 11d, and the two degreasing tanks 42 are arranged in parallel to each other in a horizontal plane. In the two degreasing tanks 42, the degreasing liquid is supplied and discharged. As the degreasing liquid, for example, a liquid mainly composed of caustic soda is used.

  Further, guide seal members 43 and 44 are attached to both ends in the longitudinal direction of each degreasing tank 42 as shown in FIG. The guide seal members 43 and 44 are arranged at different positions, and the guide seal member 44 is provided below the guide seal member 43. Further, the guide seal member 43 is provided with a slit 43a through which the belt-like member 21 passes, and the guide seal member 44 is provided with a slit 44a through which the belt-like member 21 passes. The guide seal members 43 and 44 are elements that guide the strip member 21 to enter and exit the degreasing tank 42 and prevent the degreasing liquid in the degreasing tank 42 from leaking to the outside.

  The first water washing processing unit 14 is disposed downstream of the degreasing processing unit 13 in the conveying direction of the belt-like member 21. Moreover, the 1st washing process part 14 is provided in the position away from the degreasing process part 13 with respect to the short side 11d in the direction along the long side 11b. And the 1st washing process part 14 has the two drive roller parts 45 and 46. As shown in FIG. The two drive roller portions 45 and 46 are arranged at a predetermined interval in the direction along the short side 11d. The driving roller unit 45 is disposed on the long side 11b side, and the driving roller unit 46 is disposed on the long side 11c side.

  The drive roller unit 45 includes a drive roller 45a that can rotate around a vertical axis, and an electric motor (not shown) that rotates the drive roller 45a. The drive roller unit 46 includes a drive roller 46a that can rotate about a vertical axis, and an electric motor (not shown) that rotates the drive roller 46a. The driving roller 31, the driving roller 45a, and the driving roller 46a are provided at the same height. The belt-like member 21 whose direction has been changed by the driving roller 31 is wound around the driving roller 45a, the conveyance direction is changed by about 90 degrees, and is wound around the driving roller 46a.

  The first water washing processing unit 14 includes a water washing tank 47, and the water washing tank 47 is provided between the driving roller unit 45 and the driving roller unit 46 in a direction along the short side 11d. The washing tank 47 has a longitudinal shape along the short side 11d in a horizontal plane. Further, pure water is supplied to and discharged from the washing tank 47. Further, as shown in FIG. 5, one guide seal member 43 is provided at each end of the washing tank 47 in the longitudinal direction. The belt-like member 21 is routed so as to go in and out of the washing tank 47 through a slit 43a of the guide seal member 43 through a linear conveyance path from the drive roller 45a to the drive roller 46a. Furthermore, the belt-like member 21 whose conveyance direction is changed by about 90 degrees by the drive roller 46 a is configured to be conveyed to the chemical polishing processing unit 15.

  The chemical polishing processing unit 15 is disposed downstream of the first water washing processing unit 14 in the conveyance direction of the band-shaped member 21. In addition, the chemical polishing processing unit 15 is provided in a direction along the long side 11b at a position farther from the first water washing processing unit 14 with respect to the short side 11d. The chemical polishing processing unit 15 includes a third drive roller unit 48 and a fourth drive roller unit 49. The 3rd drive roller part 48 has the same structure as the 1st drive roller part 28 provided in the degreasing process part 13, as shown in FIG. Further, the fourth drive roller unit 49 has the same configuration as the second drive roller unit 29 provided in the degreasing processing unit 13.

  The belt-like member 21 is wound around the drive roller of the third drive roller unit 48 and the drive roller of the fourth drive roller unit 49 as shown in FIG. For the sake of convenience, FIG. 7 shows a gap in the height direction between the drive rollers. The belt-like member 21 whose transport direction has been converted by the drive roller 46a of the first washing processing section 14 is wound around the drive roller 31 arranged at the top of the third drive roller section 48, and the transport direction is about It is converted by 90 degrees and is wound around the drive roller 38 located on the upper side of the fourth drive roller portion 49. Hereinafter, the belt-like member 21 is alternately wound around the driving roller 32, the driving roller 39, and the driving roller 33, and reciprocates between the third driving roller portion 48 and the fourth driving roller portion 49 twice. The belt-like member 21 is conveyed linearly in parallel with the short side 11d between the drive roller of the third drive roller unit 48 and the drive roller of the fourth drive roller unit 49.

  The chemical polishing processing unit 15 includes two chemical polishing tanks 50. The two chemical polishing tanks 50 are disposed between the third drive roller unit 48 and the fourth drive roller unit 49 in the direction along the short side 11d. The two chemical polishing tanks 50 have a longitudinal shape parallel to the short side 11d. The two chemical polishing tanks 50 are arranged in parallel to each other. Further, the two chemical polishing tanks 50 contain, for example, a polishing liquid mainly composed of sulfuric acid and an oxidizing agent. Furthermore, the chemical polishing tank 50 is the same as the degreasing tank 42 in that guide seal members 43 and 44 are provided at both ends in the longitudinal direction as shown in FIG. When the belt-like member 21 is linearly conveyed between the drive roller of the third drive roller unit 48 and the drive roller of the fourth drive roller unit 49, the slit 43a of the guide seal member 43 and the guide seal member 44 It is routed through the slit 44a so as to enter and exit the chemical polishing tank 50.

  The second water washing processing unit 16 is disposed downstream of the chemical polishing processing unit 15 in the conveying direction of the belt-like member 21. The 2nd water washing process part 16 is provided in the position along the long side 11b in the position away from the chemical polishing process part 15 with respect to the short side 11d. The second water washing processing unit 16 has driving roller portions 51 and 52. The drive roller portions 51 and 52 are arranged at a predetermined interval in the direction along the short side 11d. The driving roller unit 51 is disposed on the long side 11c side, and the driving roller unit 52 is disposed on the long side 11b side. The drive roller unit 51 includes a drive roller 51a that can rotate around a vertical axis, and an electric motor (not shown) that rotates the drive roller 51a. The drive roller unit 52 includes a drive roller 52a that can rotate around a vertical axis, and an electric motor (not shown) that rotates the drive roller 52a. The belt-like member 21 whose direction is changed by the drive roller 33 of the third drive roller portion 48 is wound around the drive roller 52a via the drive roller 51a. The drive roller 33 and the drive rollers 51a and 52a of the third drive roller unit 48 are provided at the same height.

  Moreover, the 2nd water washing process part 16 has the water washing tank 16a, and the water washing tank 16a is provided between the drive roller part 51 and the drive roller part 52 in the direction along the short side 11d. The washing tank 16a is configured in the same manner as the washing tank 47 as shown in FIG. The belt-like member 21 is wound around the drive roller 52a from the drive roller 51a. The belt-like member 21 is routed so as to pass through the slit 43a of the guide seal member 43 into and out of the washing tank 16a while being conveyed linearly between the drive roller 51a and the drive roller 52a.

  The plating processing unit 17 is disposed downstream of the second water washing processing unit 16 in the conveying direction of the band-shaped member 21. The plating process part 17 is arrange | positioned in the direction along the long side 11b in the position nearer than the 2nd washing process part 16 with respect to the short side 11e. The plating processing unit 17 includes a first processing unit 53 and a second processing unit 54. The 1st process part 53 is arrange | positioned between the 2nd washing process part 16 and the 2nd process part 54 in the direction along the long side 11b. The first processing unit includes a fifth drive roller unit 55 and a sixth drive roller unit 56. The configuration of the fifth drive roller unit 55 is the same as the configuration of the first drive roller unit 28 as shown in FIG. Further, the configuration of the sixth drive roller unit 56 is the same as the configuration of the second drive roller unit 29.

  The belt-like member 21 is wound around each drive roller in the fifth drive roller portion 55 and the sixth drive roller portion 56 as shown in FIG. The band-shaped member 21 whose direction has been changed by the driving roller 52 a is changed in direction by the driving roller 33 and wound around the driving roller 39, and the direction of the band-shaped member 21 is changed by the driving roller 39 and wound around the driving roller 32. ing. Further, the belt-like member 21 is changed in direction by the driving roller 32 and wound around the driving roller 38, and the band-like member 21 whose direction is changed by the driving roller 38 is wound around the driving roller 31. Then, the belt-like member 21 whose direction has been changed by the uppermost drive roller 31 of the fifth drive roller unit 55 is conveyed to the second processing unit 54. The drive rollers 31, 32, 33 of the fifth drive roller unit 55 and the drive rollers 38, 39 of the sixth drive roller unit 56 are connected to a negative terminal (cathode) of a power source (not shown).

  Further, the first processing unit 53 has two plating tanks 57. The two plating tanks 57 are disposed between the fifth drive roller portion 55 and the sixth drive roller portion 56 in the direction along the short side 11e. The two plating tanks 57 have a longitudinal shape parallel to the short side 11e. The two plating tanks 57 are arranged in parallel to each other. Furthermore, the plating solution is accommodated in the two plating tanks 57, and an anode basket (not shown) is provided. The anode basket is connected to the positive terminal (anode) of the power source. Further, the plating tank 57 is the same as the degreasing tank 42 in that guide seal members 43 and 44 are provided at both ends in the longitudinal direction as shown in FIG. The belt-like member 21 conveyed linearly between the drive roller of the fifth drive roller portion 55 and the drive roller of the sixth drive roller portion 56 is a slit 43a of the guide seal member 43 and a slit 44a of the guide seal member 44. Through the two plating tanks 57 alternately.

  On the other hand, the second processing unit 54 includes a seventh drive roller unit 58 and an eighth drive roller unit 59. The seventh drive roller portion 58 is disposed on the long side 11b side, and the eighth drive roller portion 59 is disposed on the long side 11c side. The seventh drive roller unit 58 has the same configuration as the first drive roller unit 28 as shown in FIG. Further, the eighth drive roller unit 59 has the same configuration as the second drive roller unit 29. FIG. 8 shows a state in which the belt-like member 21 is wound around the driving roller of the seventh driving roller portion 58 and the driving roller of the eighth driving roller portion 59. For the sake of convenience, FIG. 8 shows a gap in the height direction between the drive rollers.

  The belt-like member 21 conveyed from the drive roller 31 of the fifth drive roller unit 55 is changed in the conveyance direction by the uppermost drive roller 31 in the seventh drive roller unit 58 and is transferred to the drive roller 38 of the eighth drive roller unit 59. It is wrapped around. Hereinafter, the belt-like member 21 is wound around the driving roller 32, the driving roller 39, and the driving roller 33 in order to change the conveyance direction, and the belt-like member 21 is conveyed to the hot water washing processing unit 18.

  Two plating tanks 60 are disposed in the second processing unit 54. The two plating tanks 60 are disposed parallel to each other between the seventh drive roller portion 58 and the eighth drive roller portion 59 in the direction along the short side 11e. The two plating tanks 60 have the same configuration as the two plating tanks 57 as shown in FIG. The two plating tanks 60 are formed in a long shape along a direction parallel to the short side 11e. When the belt-like member 21 is linearly conveyed between the drive roller of the seventh drive roller unit 58 and the drive roller of the eighth drive roller unit 59, the slit 43a and the guide seal of the guide seal member 43 are used. It passes around the slits 44a of the member 44 so as to alternately enter and exit the two plating tanks 60.

  The hot water treatment unit 18 is disposed between the short side 11e and the plating unit 17 in a direction along the long side 11b. The hot water washing processing unit 18 includes three drive roller units 61, 62, and 63. The drive roller portions 61 and 63 are arranged side by side on the long side 11b side. The drive roller unit 62 is disposed on the long side 11c side.

  The drive roller unit 61 includes a drive roller 61a that can rotate around a vertical axis, and an electric motor (not shown) that rotates the drive roller 61a. The drive roller unit 62 includes a drive roller 62a that can rotate around a vertical axis, and an electric motor (not shown) that rotates the drive roller 62a. The drive roller unit 63 includes a drive roller 63a that can rotate around a vertical axis, and an electric motor (not shown) that rotates the drive roller 63a. The drive rollers 61a, 62a, 63a are provided at the same height as the drive roller 33 of the seventh drive roller portion 58.

  Then, the belt-like member 21 is conveyed to the hot water washing processing unit 18 via the driving roller 33 of the seventh driving roller unit 58. Then, the belt-like member 21 is wound around the drive roller 62a after the conveyance direction is changed by about 90 degrees by the drive roller 61a. The belt-like member 21 is wound around the drive roller 63a after the conveyance direction is changed by about 180 degrees by the drive roller 62a.

  The hot water treatment unit 18 has two hot water washing tanks 64. Each hot water bath 64 is provided in a straight line along the longitudinal direction in a path along which the belt-like member 21 is conveyed from the drive roller toward the drive roller. That is, the two hot water baths 64 are arranged in parallel with the short side 11e. Guide seal members 43 are attached to both ends in the longitudinal direction of the two hot water baths 64 as shown in FIG. The belt-like member 21 is provided with the slit 43a in both cases where it is conveyed linearly from the driving roller 61a toward the driving roller 62a and when it is conveyed linearly from the driving roller 62a toward the driving roller 63a. It is routed to pass through and enter the hot water bath 64. The belt-like member 21 whose direction has been changed by the driving roller 63 a of the hot water washing processing unit 18 is conveyed to the drying processing unit 19.

  The drying processing unit 19 is provided between the short side 11e and the hot water washing processing unit 18 in the direction along the long side 11b. The drying processing unit 19 includes a ninth driving roller unit 65 and a tenth driving roller unit 66. The ninth drive roller unit 65 is disposed on the long side 11b side, and the tenth drive roller unit 66 is disposed on the long side 11c side. That is, the ninth drive roller portion 65 and the tenth drive roller portion 66 are arranged at a predetermined interval in the direction of the short side 11e. The ninth drive roller unit 65 has the same configuration as the first drive roller unit 28 as shown in FIG. Further, the tenth driving roller portion 66 has the same configuration as the second driving roller portion 29.

  The belt-like member 21 whose direction is changed by the drive roller 63a is wound around the drive roller 33 of the ninth drive roller portion 65 as shown in FIG. It is alternately wound around the drive roller of the 9 drive roller portion 65. That is, the belt-like member 21 is changed in direction by the drive roller 33 and is wound around the drive roller 39. Further, the belt-like member 21 has its direction changed by the driving roller 39 and is wound around the driving roller 32. Further, the belt-like member 21 is changed in direction by the driving roller 32 and is wound around the driving roller 38. The belt-like member 21 whose direction has been changed by the driving roller 38 is wound around the driving roller 31. The direction of the belt-like member 21 is changed by the uppermost drive roller 31 of the ninth drive roller unit 65, and the belt-like member 21 is conveyed to the winding unit 20.

  Further, the drying processing unit 19 has two dryers 67. The two dryers 67 are disposed between the ninth drive roller unit 65 and the tenth drive roller unit 66 in the direction along the short side 11e. The two dryers 67 are both configured in a long shape parallel to the short side 11e. The dryer 67 includes one that causes forced convection in the air by a blower or the like, or one that blows warm air heated by the heat of the heater onto the belt-like member 21.

  On the other hand, the winding part 20 is provided along the short side 11e. The winding unit 20 has a direction changing roller 69. The direction conversion roller 69 is a mechanism that changes the conveyance direction of the belt-like member 21. Further, the direction changing roller 69 is configured to be rotatable about a vertical axis. The winding unit 20 has a pair of guide rollers 70. The pair of guide rollers 70 are rotatable about a horizontal axis, and the pair of guide rollers 70 are supported by a movable base 71. The movable table 71 is configured to be movable in the horizontal direction along the guide rail 72.

  The winding unit 20 includes a winding reel 73, and the winding reel 73 is configured to be rotated by an electric motor 74. The rotation shaft 75 of the take-up reel 73 is rotatable around a horizontal axis. A speed reducer (not shown) is provided in a path for transmitting the torque of the electric motor 74 to the rotary shaft 75. The pair of guide rollers 70 are disposed downstream of the direction changing roller 69 in the transport direction of the belt-shaped member 21, and the take-up reel 73 is disposed downstream of the pair of guide rollers 70 in the transport direction of the belt-shaped member 21. Yes. That is, the pair of guide rollers 70 is provided between the direction changing roller 69 and the take-up reel 73 in the direction along the short side 11e. As described above, the plating apparatus 10 includes the supply unit 12, the degreasing unit 13, the first washing unit 14, the chemical polishing unit 15, the second washing unit 16, and the plating unit 17 in a horizontal plane. The hot water washing processing unit 18, the drying processing unit 19, and the winding unit 20 are arranged in parallel to each other.

  A process of performing a plating process on the belt-like member 21 by the plating apparatus 10 shown in FIG. 1 will be described. The belt-like member 21 is wound around the take-up reel 73 as the electric motor rotates in a predetermined direction with the leading end in the carrying direction wound around the take-up reel 73 and is conveyed in the length direction. Then, the belt-like member 21 fed out from the supply reel 22 is conveyed by the pair of guide rollers 24 while the front and back surfaces are substantially along the horizontal plane. The belt-like member 21 guided by the pair of guide rollers 24 is wound around the direction changing roller 27 and guided. The pair of guide rollers 24 rotate about the horizontal axis, while the direction changing roller 27 rotates about the vertical axis. For this reason, the band-shaped member 21 is twisted by about 90 degrees in the thickness direction after it leaves the pair of guide rollers 24 until it comes into contact with the direction changing roller 27. That is, the belt-like member 21 is conveyed in a state where the front and back surfaces are substantially along the vertical direction. Thereafter, the belt-like member 21 is always conveyed while being held in a state in which the front and back surfaces are substantially along the vertical direction until it is conveyed to the winding unit 20. Then, the belt-shaped member 21 is transported to the degreasing unit 13 after the transport direction is changed by about 90 degrees by the direction conversion roller 27.

  The belt-like member 21 conveyed to the degreasing unit 13 is wound around the lowermost drive roller 33 of the first drive roller unit 28 as shown in FIG. Next, the belt-like member 21 is wound around the drive roller 39, the drive roller 32, and the drive roller 38 in this order, so that the conveyance direction of the belt-like member 21 is changed. That is, the belt-like member 21 reciprocates between the first drive roller portion 28 and the second drive roller portion 29 twice. Here, the three drive rollers 31, 32, and 33 constituting the first drive roller portion 28 have different arrangement heights. Further, the two drive rollers 38 and 39 constituting the second drive roller unit 29 have different arrangement heights. For this reason, the belt-like member 21 does not partially contact between the first drive roller portion 28 and the second drive roller portion 29 in the process of reciprocating twice in a spiral manner. The belt-like member 21 passes through the degreasing tank 42 while being conveyed linearly between the first drive roller portion 28 and the second drive roller portion 29. That is, the strip-shaped member 21 enters and exits the two degreasing tanks 42 via the slits 43a and 44a of the guide seal members 43 and 44, and the strip-shaped member 21 is degreased. When the degreasing process is finished, the belt-like member 21 is transported to the first water washing processing unit 14 by changing the transport direction by the uppermost drive roller 31 of the first drive roller unit 28.

  The belt-like member 21 conveyed to the first water washing processing unit 14 is wound around the driving roller 45a, the conveying direction is changed, and is wound around the driving roller 46a. The belt-like member 21 is conveyed linearly from the time when it leaves the driving roller 45a until it is wound around the driving roller 46a. At this time, the belt-shaped member 21 enters the washing tank 47 through the slit 43 a of the guide seal member 43. After the belt-like member 21 is washed with water, it goes out of the washing tank 47. When the belt-like member 21 comes out of the washing tank 47, the conveyance direction is changed by about 90 degrees by the driving roller 46 a and is conveyed to the chemical polishing processing unit 15.

  The belt-like member 21 conveyed to the chemical polishing processing unit 15 is wound around the uppermost drive roller 31 of the third drive roller unit 48 as shown in FIG. 7, and the conveyance direction is changed by about 90 degrees. The belt-like member 21 is sequentially wound around the driving roller 38, the driving roller 32, the driving roller 39, and the driving roller 33, so that the conveying direction and the height are changed. That is, the belt-like member 21 reciprocates twice between the third drive roller portion 48 and the fourth drive roller portion 49, and is conveyed spirally as a whole.

  The belt-like member 21 passes through the two chemical polishing tanks 50 alternately twice while being conveyed linearly between the third drive roller portion 48 and the fourth drive roller portion 49. That is, the strip member 21 enters and exits the chemical polishing tank 50 through the slits 43a and 44a of the guide seal members 43 and 44, and the front and back surfaces of the strip member 21 are polished. When the polishing process of the belt-like member 21 is completed, the transport direction is changed by the lowermost drive roller 33 of the fourth drive roller unit 49, and the belt-shaped member 21 is transported to the second water washing processing unit 16.

  The belt-like member 21 conveyed to the second water washing processing unit 16 is washed with water by passing through the water washing tank 16a while being linearly conveyed from the driving roller 51a to the driving roller 52a. The belt-like member 21 is washed with water in the washing tank 16 a, then the conveyance direction is changed by the driving roller 52 a, and conveyed to the first processing unit 53 of the plating processing unit 17.

  The belt-like member 21 transported to the first processing unit 53 is wound around the lowermost drive roller 33 as shown in FIG. Next, the belt-like member 21 is alternately wound around the driving roller 39, the driving roller 32, the driving roller 38, and the driving roller 31, whereby the direction change is repeated. That is, the belt-like member 21 reciprocates between the fifth drive roller portion 55 and the sixth drive roller portion 56 twice. Moreover, the strip | belt-shaped member 21 moves upwards gradually, being conveyed helically as a whole. And the strip | belt-shaped member 21 passes the two plating tanks 57 alternately, when conveyed between drive rollers linearly.

  Since the anode basket provided in the plating tank 57 is connected to the plus terminal and each drive roller is connected to the minus terminal, when the strip member 21 passes through the plating tank 57, the tin alloy of the anode basket is It enters into the plating solution as ions. Metal ions in the plating solution are deposited as metal atoms on the surface of the band-shaped member 21, and a plating layer is formed on the front and back surfaces of the band-shaped member 21. The thickness of the plating layer formed on the belt-like member 21 is determined by the current value of power supplied from the power source and the conveyance speed of the belt-like member 21. The conveyance speed of the belt-like member 21 can be adjusted by controlling the rotation speed of each electric motor.

  The belt-like member 21 on which the plating layer is formed by the first processing unit 53 is conveyed to the second processing unit 54 via the driving roller 31 and is the uppermost driving roller of the seventh driving roller unit 58 as shown in FIG. 31 is wound around. The belt-like member 21 reciprocates between the seventh drive roller portion 58 and the eighth drive roller portion 59 twice. In other words, the belt-like member 21 is alternately wound around the driving roller 31, the driving roller 38, the driving roller 32, the driving roller 39, and the driving roller 33, so that the direction change is repeated.

  In this way, the belt-like member 21 reciprocates between the fifth drive roller portion 55 and the sixth drive roller portion 56 twice. Moreover, the strip | belt-shaped member 21 moves below gradually, being conveyed helically as a whole. In the second processing unit 54, the strip member 21 enters and leaves the plating tank 60 while being linearly conveyed between the drive rollers, and plating treatment is performed on the front and back surfaces of the strip member 21 on the same principle as the plating tank 57. Applied. That is, the belt-like member 21 is subjected to the plating process a plurality of times while being conveyed at different heights.

  Then, the strip-shaped member 21 that has been subjected to the plating process is changed in direction by the lowermost drive roller 33 of the second processing unit 54 and conveyed to the hot water washing processing unit 18. The belt-like member 21 conveyed to the hot water washing processing unit 18 is washed with hot water in the hot water washing tank 64 when being conveyed linearly from the driving roller 61a to the driving roller 62a. Further, the belt-like member 21 whose conveyance direction has been changed by the drive roller 62a is again washed in the hot water bath 64 when being conveyed linearly from the drive roller 62a to the drive roller 63a.

  The belt-like member 21 washed with hot water in the hot water treatment section 18 is conveyed to the drying processing section 19 by the drive roller 63a. The belt-like member 21 conveyed to the drying processing unit 19 is wound around the lowermost drive roller 33 of the ninth drive roller unit 65. Further, the belt-like member 21 is sequentially folded back by the driving roller 39, the driving roller 32, the driving roller 38, and the driving roller 31, and reciprocates twice between the ninth driving roller portion 65 and the tenth driving roller portion 66. In this way, the belt-like member 21 is conveyed spirally as a whole in the drying processing unit 19. Moreover, the strip | belt-shaped member 21 is conveyed toward upper direction gradually. And it dries with the dryer 67 in the location conveyed linearly between drive rollers. Thereafter, the direction of the dried belt-like member 21 is changed by the uppermost drive roller 31 of the ninth drive roller unit 65 and conveyed to the winding unit 20.

  In the winding unit 20, the belt-like member 21 is routed from the direction changing roller 69 to the pair of guide rollers 70, and the belt-like member 21 is twisted by about 90 degrees in the thickness direction so that the front and back surfaces are along the horizontal plane. Is returned. The belt-like member 21 conveyed by the pair of guide rollers 70 is taken up by the take-up reel 73.

  Thus, in the plating apparatus 10 of this embodiment, each mechanism and each process part are arrange | positioned mutually parallel in the plane of a horizontal direction. For this reason, it can suppress that the exclusive area of the plating apparatus 10 in the plane of a horizontal direction becomes large. Moreover, in the plating apparatus 10, since the strip | belt-shaped member 21 meanders and is conveyed as a whole within the plane of a horizontal direction, compared with the case where each process part is put in a line in the longitudinal direction, the full length in one direction is shortened. be able to. In the plating apparatus 10, a plurality of driving rollers are provided at different heights in each of the degreasing processing unit 13, the chemical polishing processing unit 15, the plating processing unit 17, and the drying processing unit 19, and the belt-shaped member 21 is driven. By moving back and forth between the rollers, the belt-like member 21 is spirally conveyed in the height direction. Therefore, in the horizontal plane, the transport length of the band-shaped member 21 per unit area can be increased, and various processing efficiencies can be increased (improved).

  For example, as a comparative example, in a horizontal plane, the belt-shaped member is reversed between two drive rollers and conveyed, and the treatment tank is moved twice while reciprocating between the two drive rollers. A passing plating apparatus is assumed. Assuming that the length of the treatment tank is 1 m, there appears to be 2 m of the step of treating the strip member during one reciprocation. Moreover, in order to perform a predetermined | prescribed process to a strip | belt-shaped member, it shall pass through the processing tank for a fixed time (for example, 10 minutes).

  On the other hand, in the present embodiment, the installation area of the five drive rollers in the horizontal plane is the same as that of the comparative example, but reciprocates twice between the five drive rollers. For this reason, even if the single length of each processing tank is 1 m, which is the same as that in the comparative example, there appears to be 4 m of a step of processing the strip member during two reciprocations. That is, the processing length of the plating apparatus 10 of this embodiment is twice that of the plating apparatus of the comparative example.

  Further, in the present embodiment, the number of driving rollers of the loading side / unloading side driving roller unit in each processing unit is at least three, and the number of driving rollers of the return side driving roller unit is at least two. That is, the plating apparatus 10 sets the number of drive rollers of the carry-in side and carry-out side drive roller units to be one more than the number of drive rollers of the return side drive roller unit.

  Here, the carry-in drive roller unit in each processing unit means a drive roller unit that carries the belt-like member 21 into the processing unit from the previous step. The unloading-side drive roller section in each processing section means a driving roller section that unloads the belt-like member 21 from the processing section toward the next process. In the degreasing processing unit 13, the chemical polishing processing unit 15, the plating processing unit 17, and the drying processing unit 19 of this embodiment, the carry-in side drive roller unit also serves as the carry-out side drive roller unit. Further, the return-side drive roller portion plays a role of folding the belt-like member 21 carried into the processing portion via the carry-in side drive roller portion toward the carry-out side drive roller portion.

  Accordingly, the belt-like member 21 in each processing unit in the horizontal plane is from the processing of the belt-like member 21 carried into each processing unit via the drive-side drive roller unit to the next process. Can be processed while smoothly transporting the belt-like member 21 sequentially and continuously without being complicatedly routed (intersecting). That is, when the belt-like member 21 is reciprocated in each processing unit, the forward path and the return path are parallel to each other, and the forward path and the return path do not intersect each other.

  In addition, since the treatment length of the treatment tank provided in each treatment unit is twice the treatment length of the plating apparatus of the comparative example, the conveyance speed of the belt-shaped member in this embodiment is set to the conveyance speed of the belt-shaped member in the comparative example. If it is set to 2 times, within the same processing time, this embodiment can ensure twice the processing length compared with a comparative example. Therefore, the processing efficiency to the strip-shaped member 21 in the plating apparatus 10 can be increased. In addition, the belt-like member 21 is subjected to a plating process at a portion where the belt-like member 21 is conveyed linearly in a part when being conveyed spirally between the drive rollers. For this reason, the conveyance speed is the same on the front and back surfaces of the belt-like member 21. In particular, in the plating unit 17, the plating process can be performed at a location where the front and back surfaces of the belt-like member 21 are not in contact with the peripheral members, the driving roller, and the like. Therefore, the front and back surfaces of the belt-like member 21 can be uniformly plated, and the product quality is improved.

  Further, the plating tank 57 is disposed in the horizontal plane by utilizing the space between the fifth drive roller portion 55 and the sixth drive roller portion 56. In addition, the plating tank 60 is disposed using a space between the seventh drive roller portion 58 and the eighth drive roller portion 59 in a horizontal plane. Therefore, the expansion of the exclusive area of the entire plating apparatus 10 can be suppressed in the horizontal plane.

  Here, the correspondence between the configuration described in the present embodiment and the configuration of the present invention will be described. The degreasing processing unit 13, the first water washing processing unit 14, the chemical polishing processing unit 15, and the second water washing processing unit 16 are as follows. This corresponds to the “preprocessing unit” of the present invention. Further, the hot water washing processing unit 18 and the drying processing unit 19 correspond to the “post-processing unit” of the present invention. Further, the first drive roller section 28, the second drive roller section 29, the fifth drive roller section 55, the sixth drive roller section 56, the seventh drive roller section 58, and the eighth drive roller section 59 are the transport mechanism of the present invention. It corresponds to. The first drive roller unit 28, the fifth drive roller unit 55, and the seventh drive roller unit 58 correspond to the first transport mechanism of the present invention. The second drive roller unit 29, the sixth drive roller unit 56, the The 8-drive roller unit 59 corresponds to the second transport mechanism of the present invention.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the number of driving rollers provided in each processing unit is not limited to five, and the belt-like member can be set to have a number of reciprocations exceeding two. Each processing step can be provided with seven drive rollers. Then, the strip member can reciprocate three times in each processing step, the apparent processing length is three times that of the comparative example, and the transport speed of the strip member can be tripled. Also, the axis of rotation of the supply reel and the take-up reel and the axis of the pair of guide rollers can be made vertical. Furthermore, it is possible to arbitrarily change whether the uppermost drive roller or the lowermost roller is wound around the carry-in drive roller unit of each processing unit. Further, in the degreasing tank 42, the chemical polishing tank 50, and the plating tanks 57 and 60, guide seal members 43 and 44 are provided at different heights, and the belt-like member 21 is configured to pass through each processing tank twice. However, each processing tank may be provided separately in two upper and lower stages.

  Furthermore, in order to perform a plurality of processing processes, the arrangement order of the processing units arranged on the apparatus main body 11, the number of times of processing in the same processing unit, and the like are not limited to the example of FIG. . For example, the number of times of processing in the same processing unit varies depending on the material of the strip-shaped member 21 to be plated, the type and function of plating, usage, and the like. In addition, the plating processing section of the present invention is not limited to performing a single type of plating, but includes a configuration in which copper plating or nickel plating is applied as a base, and silver plating or gold plating is applied thereon. That is, the same processing unit includes a plurality of types of processing. More specifically, in the present invention, when nickel plating (base) is applied to the surface of a belt-shaped member made of stainless steel, and silver plating is applied thereon, each processing unit is, for example, a degreasing processing unit (electrolytic unit) Degreasing), water washing treatment part, acid activity, water washing treatment part, plating treatment part (nickel strike plating), water washing treatment part, plating treatment part (nickel plating), water washing treatment part, plating treatment part (silver strike plating), plating treatment Arrangement in the order of a part (silver plating), a water washing treatment part, a discoloration prevention, a hot water washing treatment part, and a drying treatment part is also included.

21 Belt-shaped member 10 Plating apparatus 13 Degreasing treatment unit 14 First water washing treatment unit 15 Chemical polishing treatment unit 16 Second water washing treatment unit 17 Plating treatment unit 18 Hot water washing treatment unit 19 Drying treatment unit 55 Fifth drive roller unit 56 Sixth drive Roller part 57 Plating tank

Claims (3)

A plating apparatus that conveys a belt-shaped member in a longitudinal direction and performs a plating process on the belt-shaped member in a plating processing unit,
Before performing the plating process on the band-shaped member, a pretreatment unit that performs a predetermined process on the band-shaped member;
After performing a plating process on the strip member, a post-processing unit that performs a predetermined process on the strip member;
A transport mechanism that transports the belt-like member in a spiral shape in a height direction in a posture that is provided at an interval in the plating processing unit and the front and back surfaces of the belt-like member are in a direction along the vertical direction;
Plating that is provided in the plating processing section and is subjected to plating treatment a plurality of times at a portion where the belt-like member is conveyed in a straight line in a spiral shape and at different heights. A plating apparatus comprising a tank. The plating apparatus according to claim 1,
The transport mechanism rotates about a vertical axis, and has a first transport mechanism in which a plurality of drive rollers having different heights are coaxially arranged, rotates about a vertical axis, and has a height. And a second transport mechanism in which a plurality of different drive rollers are arranged coaxially,
The plating apparatus, wherein the belt-like member is spirally wound by being alternately wound around the drive roller of the first transport mechanism and the drive roller of the second transport mechanism.   3. The plating apparatus according to claim 2, wherein the belt-like member is formed with a portion that is linearly conveyed between the driving roller of the first conveying mechanism and the driving roller of the second conveying mechanism, and the plating is performed. The plating apparatus, wherein the tank is provided between the first transport mechanism and the second transport mechanism.

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