JP2011032539A - Opening barrel plating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening barrel plating device capable of homogeneously plating the workpieces in bulk while improving a plating efficiency. <P>SOLUTION: The bottom side of a cup-like barrel vessel 5 is mounted to a swinging member 7 freely swingably supported by right-and-left side frames 1. The rotary drive force of a motor 6a is transmitted to a vessel-mounting member 18 mounting the barrel vessel 5 via spur gears 14a, 14b, 14c and 14d, bevel gears 16a and 16b, and spur gears 17a and 17b. Besides, the barrel vessel 5 is rotated and swung by linking using a link 23, a linking pin 21a which is installed to a disk 22 mounted to the output shaft of a motor 6b with a linking pin 21b which is installed to the swinging member 7. Thereby, the workpiece in bulk is flowed so that the slanting state of the barrel vessel 5 at the bottom side thereof changes to be brought into even contact with a plating liquid. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an opening barrel plating apparatus for immersing a cup-shaped barrel container having an open upper end in a plating bath so as to plate a rose-shaped object to be plated placed in the barrel container.

  Barrel plating equipment for plating loose objects to be placed in a barrel container. A closed barrel that immerses a cylindrical barrel container closed at both ends in a plating bath and rotates it around a horizontal axis. There is a plating apparatus and an open barrel plating apparatus in which a cup-shaped barrel container having an open upper end is inclined and immersed in a plating bath and rotated around an inclined axis (see, for example, Patent Documents 1-3) . Unlike the closed barrel plating apparatus, the opening barrel plating apparatus has an advantage that it is not necessary to attach and detach the lid to the barrel container, and that the object to be plated can be easily taken in and out. Further, there is no possibility that a fine object to be plated fits between the lid and the container body.

  These barrel plating apparatuses include those for electrolytic plating and those for electroless plating. In the case of electrolytic plating, an anode is provided in the plating bath, and the cathode is guided into the barrel vessel. .

JP-A-10-195698 JP 2002-339100 A JP-A-2005-76066

  The conventional open barrel plating apparatus described in Patent Documents 1-3 rotates a cup-shaped barrel container having an open upper end around an axis while being tilted at a constant tilt angle. The plate-like object to be plated does not flow so much on the bottom side of the cup-shaped barrel container, and is inclined to the inclined lower side. For this reason, there is a problem in that the bulk-like object cannot be evenly contacted with the plating solution, the plating tends to be inhomogeneous, and the plating efficiency is lowered.

  Then, the subject of this invention is providing the opening barrel plating apparatus which can plate a rose-shaped to-be-plated object homogeneously and can also improve plating efficiency.

  In order to solve the above-mentioned problem, the present invention comprises a cup-shaped barrel container having an open upper end, immersed in a plating bath with an inclined axis, and rotationally driven around the inclined axis, In an open barrel plating apparatus for plating a rose-shaped object to be placed in a barrel container, a cup-shaped barrel container that is driven to rotate about the axis is arranged within a vertical section including the inclined axis. A configuration provided with means for swinging was adopted.

  That is, by providing a means for swinging a cup-shaped barrel container that is rotationally driven around an axis within a vertical cross section including an inclined axis, a rose-shaped object to be plated is converted into a cup-shaped barrel. It is made to flow so that the biased state on the bottom side of the container changes, and evenly contacts with the plating solution, so that it is possible to uniformly plate a loose object to be plated and to improve the plating efficiency. I made it.

  The means for swinging the cup-shaped barrel container in a vertical cross section is configured such that, in the plating bath, a swinging member having a swinging part passed between tip ends of a pair of flanges is arranged in a direction in which the swinging part is passed. In a horizontal direction, a swinging support point provided on the base end side of the pair of flanges is supported so as to be swingable on the fixed member, and the container mounting portion provided on the swinging portion of the swinging member The bottom side of the cup-shaped barrel container is attached so that its axis is perpendicular to the swinging portion, and the swinging member can be driven to swing.

  The means for oscillating and driving the oscillating member includes a crankshaft that is rotationally driven by a driving source arranged outside the plating bath, and is arranged in parallel with the oscillating portion of the oscillating member. The eccentric part of the swinging member and the part eccentric from the swinging support point of the flange part of the swinging member are connected by a link orthogonal to the parallel crankshaft and the swinging part, and the swinging part is driven to swing. Can be.

  By making the drive source for rotationally driving the crankshaft different from the drive source for rotationally driving the cup-shaped barrel container, the rotational speed and swing speed of the cup-shaped barrel container are changed independently. be able to. In addition, only one of rotation and swinging can be performed.

  A support shaft that rotatably supports a cup-shaped barrel container attached to the swinging portion of the swinging member, and a base end side of at least one flange of the swinging member is swingably supported by the fixing member. And a bevel gear meshing with each other at right angles to one end side of the oscillating portion adjacent thereto, and rotational driving force transmitted from a driving force transmission mechanism attached to the fixed member side at these right angles. By transmitting via a meshing bevel gear to the barrel container attached to the container mounting part of the rocking part, a cup-shaped cup without using a rotational drive source on the rocking member in the plating bath. The barrel container can be driven to rotate.

  The driving force transmission mechanism attached to the fixing member side may be a gear transmission mechanism that transmits the rotational driving force of a driving source disposed outside the plating bath by meshing a plurality of gears.

  The means for attaching the oscillating part on the bottom side of the cup-shaped barrel container to the container attaching part on either the container attaching part of the oscillating part or the bottom of the barrel container, on the tip side of the cylindrical part Provided with a cylindrical convex portion formed with a male thread portion having a thread diameter equal to or smaller than the outer diameter of the cylindrical portion, on the other side, with a thread diameter equal to or smaller than the inner diameter of the round hole on the back side of the round hole into which the cylindrical portion is fitted, Providing a round hole recess formed with a female thread portion to be screwed with a male screw portion of a cylindrical convex portion, and fitting the cylindrical convex portion into the round hole concave portion, and then screwing the male screw portion and the female screw portion; By doing so, the cup-shaped barrel container can be easily attached and detached. In addition, it is good for the male thread part of a cylindrical convex part and the female thread part of a round hole recessed part to become what is fastened by rotation of a barrel container.

  Since the opening barrel plating apparatus of the present invention is provided with means for swinging a cup-shaped barrel container that is rotationally driven around an axis within a vertical cross section including an inclined axis, The product is made to flow so that the biased state on the bottom side of the cup-shaped barrel container changes, and evenly contacts with the plating solution. Can also be improved.

Partially cutaway front view showing an embodiment of a barrel plating apparatus Sectional view along the line II-II in FIG. Front view of the swing member of FIG. Side view from the right side of the barrel plating apparatus in FIG. a and b are side views for explaining the swinging motion of the barrel container in FIG. a is a partially cutaway front view showing the barrel container of FIG. 1, and b is a top view of a.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this open barrel plating apparatus, as shown in FIGS. 1 and 2, the left and right side frames 1 as a fixing member are suspended from the upper end edge of the plating tank 3 by a pair of beam members 2, and the upper part outside the plating bath. A motor 6a for rotationally driving and a motor 6b for rotationally driving a cup-shaped barrel container 5 having an open upper end are arranged on the left and right sides on a support base 4 passed between the side frames 1, and are suspended in a plating bath. A swinging member 7 having a plate-like swinging part 7b passed to the tip of a pair of hooks 7a at the lower part of the side frame 1 has a pair of hooks facing the horizontal direction of the swinging part 7b. The base end portion of the portion 7a is supported by the pair of bearing members 8 so as to be swingable. The output shafts of the motors 6 a and 6 b are directed to the left and right in parallel with the swing part 7 b of the swing member 7.

  The left and right side frames 1 are connected at their upper and lower portions by a handle member 9 and a connecting member 10, respectively, and each motor 6a, 6b on the support base 4 is covered with a cover 11 so that the plating solution does not splash. ing. Further, this plating apparatus is for electrolytic plating, and an anode rod 12 is suspended in a plating bath, and a flexible cathode conductor 13 is introduced into the barrel container 5 from the upper end opening.

  A spur gear 14a is attached to the left output shaft of the motor 6a, and upper and lower spur gears 14b and 14c that are sequentially meshed with the spur gear 14a are attached to the inner surface of the left side frame 1 by bearing members 15a and 15b. The lower spur gear 14 c is meshed with a spur gear 14 d attached to the left bearing member 8 that supports the flange 7 a of the swing member 7. Further, a bevel gear 16a is attached to the spur gear 14d in an overlapping manner, and meshed at right angles with a bevel gear 16b attached to the left side of the swinging portion 7b of the swinging member 7 by a bearing member 15c.

  As shown in FIG. 3, a spur gear 17a is attached to the left bevel gear 16b of the swing part 7b, and the bottom side of the cup-shaped barrel container 5 is attached to the center of the swing part 7b. A cylindrical container attachment member 18 is rotatably fitted in the through hole 19, and a spur gear 17 b that meshes with the left spur gear 17 a is attached to the outer peripheral surface thereof. The container attachment member 18 is prevented from coming off by a nut 20.

  Accordingly, the rotational driving force of the motor 6a is sequentially transmitted downward by the spur gears 14a, 14b, 14c and 14d on the fixed left side frame 1 side, and is swung by the bevel gears 16a and 16b. It is transmitted to the member 7 side, and further transmitted to the container mounting member 18 by the spur gears 17a and 17b, and the barrel container 5 attached to the container mounting member 18 is rotationally driven around the axis. Each of the rotational drive force transmission mechanisms on the side frame 1 side and the swinging member 7 side that are fixed can be a belt transmission mechanism or the like in addition to such a gear transmission mechanism.

  As shown in FIGS. 1 and 4, a disc 22 having a connecting pin 21a attached to an eccentric position as a crankshaft is attached to the right output shaft of the motor 6b. The link 23 is connected to a connecting pin 21 b attached to the swing part 7 b of the moving member 7. The connecting pin 21b is inserted into an arcuate guide hole 24 formed in the right side frame 1 to guide the swinging motion of the swinging member 7.

  FIGS. 5A and 5B are side views for explaining a state in which the swing member 7 swings by the rotation of the disk 22 driven by the motor 6b. In this embodiment, the disk 22 rotates clockwise, and the connecting pin 21b is located away from the center line m passing through the swing support point by the bearing member 8 at the back side (right side of the drawing) of the swing portion 7b. ) Is attached to the width end. FIG. 5A shows a state in which the coupling pin 21a of the disc 22 is near the bottom dead center, the container mounting member 18 is obliquely upward, and the cup-shaped barrel container 5 is most upright. FIG. 5B shows a state in which the barrel container 5 is most lying down with the connecting pin 21a of the disc 22 near the top dead center and the container mounting member 18 being close to the side. Therefore, while the disk 22 rotates once, the barrel container 5 performs a swinging motion that returns from the standing state to the maximum tilted state and returns to the standing state. At this time, the connecting pin 21 b draws an arc locus centering on a support point by the bearing member 8 and is guided by the arc-shaped guide hole 24.

  In this embodiment, the connecting pin 21b is attached at a position away from the center line m of the swing member 7. However, the connecting pin 21b can be attached at a position eccentric from the support point by the bearing member 8 on the center line m. . Further, the swing amplitude and swing tilt range of the barrel container 5 can be changed by the eccentric amount of the connecting pin 21a, the eccentric amount of the connecting pin 21b and the distance from the center line m, the length of the link 23, and the like.

  As shown in FIGS. 6 (a) and 6 (b), the barrel container 5 has a hexagonal cylindrical shape with an open upper end and a shape in which the bottom is inclined downward toward the center side. A mesh 5b finer than the object is insert-molded from the inner surface side.

  At the center of the bottom of the barrel container 5, there is provided a mounting portion 25 formed with a round hole 25a that opens downward, and a female screw portion 25b having an inner diameter equal to the thread diameter is formed on the inner side of the round hole 25a. Has been. As shown in FIG. 3, the container mounting member 18 is formed with a male threaded portion 18 b having the same outer diameter and thread diameter on the distal end side of the cylindrical portion 18 a, and the mounting portion 25 of the barrel container 5. The barrel container 5 can be easily attached to the container attachment member 18 by fitting the cylindrical part 18a of the container attachment member 18 into the round hole 25a and then screwing the male screw part 18b and the female screw part 25b. The male screw portion 18b and the female screw portion 25b are tightened with respect to the rotation of the barrel container 5. The cylindrical portion 18a can be provided on the barrel container 5 side, and the round hole 25a can be provided on the container attachment member 18 side.

DESCRIPTION OF SYMBOLS 1 Side frame 2 Beam member 3 Plating tank 4 Supporting stand 5 Barrel container 5a Crosspiece 5b Mesh 6a, 6b Motor 7 Oscillating member 7a Gutter part 7b Oscillating part 8 Bearing member 9 Handle member 10 Connecting member 11 Cover 12 Anode rod 13 Cathode Conductors 14a, 14b, 14c, 14d Spur gears 15a, 15b, 15c Bearing members 16a, 16b Bevel gears 17a, 17b Spur gear 18 Container mounting member 18a Column 18b Male thread 19 Through hole 20 Nut 21a, 21b Connecting pin 22 Disc 23 Link 24 Guide hole 25 Mounting part 25a Round hole 25b Female thread part

Claims (7)

  A cup-shaped barrel container having an open upper end is immersed in a plating bath with an inclined axis, and is driven to rotate around the inclined axis. In the opening barrel plating apparatus for plating, the opening is provided with means for swinging a cup-shaped barrel container that is rotationally driven around the axis within a vertical section including the inclined axis. Barrel plating equipment.   The means for swinging the cup-shaped barrel container in a vertical cross-section is configured so that a swinging member having a swinging part passed between the tip ends of a pair of flanges in the plating bath is placed in a direction in which the swinging part is passed. In a horizontal direction, a swinging support point provided on the base end side of the pair of flanges is supported so as to be swingable on the fixed member, and the container mounting portion provided on the swinging portion of the swinging member 2. The open barrel plating apparatus according to claim 1, wherein the bottom side of the cup-shaped barrel container is attached so that its axis is perpendicular to the swinging portion, and the swinging member is driven to swing.   The means for swinging and driving the swinging member includes a crankshaft that is rotationally driven by a drive source disposed outside the plating bath, and is arranged in parallel with the swinging portion of the swinging member. The eccentric part of the swinging member and the part eccentric from the swinging support point of the flange part of the swinging member are connected by a link orthogonal to the parallel crankshaft and the swinging part, and the swinging part is driven to swing. The opening barrel plating apparatus according to claim 2.   The opening barrel plating apparatus according to claim 3, wherein a drive source that rotationally drives the crankshaft is a drive source that is different from a drive source that rotationally drives the cup-shaped barrel container.   A support shaft that rotatably supports a cup-shaped barrel container attached to the swinging portion of the swinging member, and a base end side of at least one flange of the swinging member is swingably supported by the fixing member. And a bevel gear meshing with each other at right angles to one end side of the oscillating portion adjacent thereto, and rotational driving force transmitted from a driving force transmission mechanism attached to the fixed member side at these right angles. The opening barrel plating apparatus according to any one of claims 2 to 4, wherein the transmission is transmitted to a barrel container attached to a container attachment part of the swing part via a meshing bevel gear.   The drive force transmission mechanism attached to the fixed member side is a gear transmission mechanism that transmits a rotational drive force of a drive source disposed outside the plating bath by meshing a plurality of gears. Opening barrel plating equipment.   The means for attaching the oscillating part on the bottom side of the cup-shaped barrel container to the container attaching part on either the container attaching part of the oscillating part or the bottom of the barrel container, on the tip side of the cylindrical part Provided with a cylindrical convex portion formed with a male thread portion having a thread diameter equal to or smaller than the outer diameter of the cylindrical portion, on the other side, with a thread diameter equal to or smaller than the inner diameter of the round hole on the back side of the round hole into which the cylindrical portion is fitted, Providing a round hole recess formed with a female thread portion to be screwed with a male screw portion of a cylindrical convex portion, and fitting the cylindrical convex portion into the round hole concave portion, and then screwing the male screw portion and the female screw portion; The opening barrel plating apparatus according to any one of claims 2 to 6.

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