JP2006009063A - Barrel for plating - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the defect in plating by preventing objects to be plated rolling in a barrel rotating around an axis from being caught in a barrel. <P>SOLUTION: The barrel is provided with: a barrel body 2 formed into an almost polygonal cylindrical shape by both the edge faces and the circumferential multiple faces, and in which multiple pores 7a are formed on the faces other than a circumferential one face, and the object to be plated can be stored at the inside; an opening frame body 5 arranged at the above one face in the barrel body 2 and having an opening part 4; and a covering tool 6 of opening and closing the opening part 4 in the opening frame body 5. The covering tool 6 comprises: a cover body 10 of pressing a slope 11 against the edge 4a of the opening part 4 and closing the opening part 4; and a pressing board 20 of allowing an engagement part 20 provided at the circumferential part to be engaged with the opening frame body 5 so as to be freely engaged/disengaged, pressing the cover body 10 against the side of the barrel body 2 and checking its removal. In the covering tool 6, the space between the cover body 10 and the pressing board 20 is provided with a pressure applying means 40 of flexibly separating the pressing board 20 from the cover body 10 and applying pressing force against the side of the barrel body 2 to the cover body 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a plating barrel for electroplating an object to be plated such as a microelectronic component.

In this type of prior art, an electroplating apparatus for electroplating small parts such as electronic parts accommodates an object to be plated in a hexagonal cylindrical barrel, and the barrel is immersed in an electrolytic plating solution in a plating tank. In addition, an anode is provided in the plating solution, and a cathode is provided in the barrel, and the barrel is rotated around its axis so that an object to be plated is rolled while rolling in the barrel (for example, Patent Documents). 1).
Such a barrel forms a frame by forming a porous wall that forms five surfaces into a rectangular shape, and forms an opening through which an object to be plated is put in and out of an opening frame provided on the remaining one surface. These are made of a synthetic resin that can be insulated and is not altered by the plating solution.
JP-A-8-176897 (page 3-4, FIG. 1)

Recently, electronic parts to be plated have been miniaturized, and there are many parts obtained by processing ultra-thin plate materials having a thickness of 0.1 mm or less. Since there are an opening and a lid that closes the opening at the rolling position, an object to be plated may enter a small gap between them, which causes a defective plating.
An object of the present invention is to provide a plating barrel capable of solving such problems of the prior art.
SUMMARY OF THE INVENTION An object of the present invention is to provide a plating barrel in which a small gap is not generated by pressing a lid that closes an opening of an opening frame with an elastic means.

Specific means for solving the problems in the plating barrel of the present invention are as follows.
First, a barrel main body which is formed in a substantially polygonal cylinder shape with both end faces and peripheral multifacets, and which is porous on the other face except the peripheral one face, and capable of storing an object to be plated therein, An opening frame body that is disposed on the one surface and has an opening, and a lid that opens and closes the opening of the opening frame, and the lid is inclined on the edge of the opening A lid that closes the opening by pressing, and a pressing plate that detachably engages an engaging portion provided in the periphery with the opening frame and presses the lid toward the barrel body to prevent detachment The lid device is provided with a compression means between the lid and the pressing plate to elastically separate the pressing plate from the lid and to apply a pressing force to the barrel body side to the lid. That is.

Thus, the cover body that closes the opening portion is pressed against the barrel main body side to prevent the separation thereof, thereby eliminating the occurrence of a small gap between the opening portion and the lid body that closes the lid body. Can be prevented from entering into the small gap, and the lid can be elastically pressed toward the barrel main body, so that the detachment can be permanently prevented even under dynamic conditions such as a rotating barrel.
Second, the opening edge of the opening frame is formed into a circular outwardly extending tapered surface, the inclined surface of the lid is formed into a tapered surface in close contact with the opening edge, and the compression means is rotated to the lid. It is formed of a screw member that is freely engaged and screwed to the pressing plate.

As a result, it is possible to simply and robustly use the screw member for the compression means.
Thirdly, a barrel body which is formed in a substantially polygonal cylinder shape with both end faces and surrounding multiple faces, and which is porous on the other face except for the surrounding 1 face, and capable of storing the object to be plated therein, An opening frame that is disposed on the one surface and has an opening; and a lid that opens and closes the opening of the opening frame. A lid fitting portion that protrudes in the direction, and the lid has a fitting recess that fits into the lid fitting portion and closes the opening, and the engaging portion is an opening frame. And a pressing plate that detachably engages and presses the lid toward the barrel body to prevent detachment, and the outer peripheral surface of the lid fitting portion presses the outer peripheral surface of the fitting concave portion of the lid The opening edge of the lid fitting portion is formed on an inclined surface that presses against the inner peripheral surface of the fitting recess of the lid.

As a result, a small gap is generated between the opening having a lid fitting portion projecting outward from the barrel main body and the lid body having the fitting concave portion fitted thereto and closing the opening. Therefore, it is possible to eliminate the plating defects caused by the object to be plated entering.
4thly, the said cover implement is provided with the elastic means between the cover body and a press plate, and elastically isolate | separates a press plate from a cover body and gives a pressing force to a barrel main body side to a cover body. That is.
Accordingly, the cover body that closes the opening portion is elastically pressed toward the barrel body side to prevent the separation thereof, so that a small gap is not generated between the opening portion and the cover body that closes the opening portion, and therefore the cover body is covered. This makes it possible to eliminate plating defects caused by the penetration of the plated material.

Fifthly, the outer peripheral surface of the fitting recess is formed as an inclined surface in contact with the inclined surface of the outer peripheral surface of the lid fitting portion, and the elastic means is rotatably engaged with the lid body and screwed into the pressing plate. It may be formed with a screw member.
As a result, it is possible to simply and robustly use the screw member as the elastic means.

  According to the present invention, it is possible to eliminate a small gap between the opening and the lid that closes the opening, thereby preventing an object to be plated from entering the small gap and thus eliminating plating defects. .

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the first embodiment shown in FIGS. 1 to 3, the barrel 1 has a substantially polygonal barrel body 2 with an opening 4 provided on one peripheral surface, and axial end faces of the barrel body 2. It has disk-like end closing plates 3 and 8 to be fixed, an opening frame 5 having an opening 4, and a lid 10 that can close the opening 4. The plates 3, 8, the opening frame body 5, and the lid body 10 are formed of a synthetic resin that can be insulated and not deteriorated by the plating solution, and these synthetic resins are joined and integrated as appropriate by welding.

The barrel 1 is provided with a cathode in the barrel main body 2 and accommodates microelectronic components and the like from the opening 4 and is immersed in a plating solution in which an anode in a plating tank is disposed, and is rotated while rotating around a horizontal axis. Plating work.
The barrel body 2 joins the side edges 7b to each other so that five flat plate members 7 are combined with the opening frame 5 into a hexagonal shape, and the transverse member extends in the axial direction (longitudinal direction) to the joined side edges. 9 and end closing plates 3 and 8 are joined to both ends in the axial direction.
The plate material 7 constituting the side surface of the barrel body 2 is formed with a plurality of holes 7a through which a plating solution can flow to form a porous wall.

The barrel body 2 is formed of five sheets 7 of hexagonal surfaces, but is formed by bending one long sheet of material in the same direction so as to form five surfaces of hexagons. Further, the end closing plates 3 and 8 may be formed in a polygon other than a hexagon. The end closing plates 3 and 8 are rotatably supported by shafts 3a and 8a fixed to the barrel support 50, and one of them is a gear. It has a portion 3c, and rotational power can be transmitted via a gear transmission means from a motor not shown. In addition, electrodes 3b and 8b serving as cathodes are inserted into the shaft portions 3a and 8a in the axial center. The electrodes 3b and 8b are preferably fixed to the shaft portions 3a and 8a to close the insertion holes 3d and 8d.

The opening frame 5 is formed by forming a large circular hole for putting an object to be plated into the base 5a, and an annular body 5b having the same diameter as the circular hole is fixed to the outside of the base 5a. The annular body 5b includes a circular opening 4 having an edge 4a, and an engagement groove 5c and a locking portion 5d in which three engagement portions 21 at 120 ° intervals of a pressing plate 20 described later are engaged. And are formed. The edge 4a of the opening 4 is formed in a circular outwardly extending tapered surface.
The engagement groove 5c is a groove having a substantially L-shaped cross section when viewed from the center of the opening 4, and rotates in the circumferential direction after the engagement portion 21 of the pressing plate 20 is placed on the barrel body 2 side. The locking portion 5d prevents the engaging portion 21 from being detached in the off-axis direction in a rotated state.

The lid 6 includes a circular lid 10 that opens and closes the opening 4, and a pressing plate 20 that presses the lid 10 toward the barrel body 2 to prevent detachment from the barrel body 2. A pressing means 40 (a screw member 30, a knob 31, a screw member 30, a knob 31, and a pressing member 20 that elastically separates the pressing plate 20 from the lid 10 and applies a pressing force to the lid 10 toward the barrel body 2. And is assembled and handled as a single assembly.
The lid body 10 has an outer peripheral inclined surface 11 formed on a tapered surface pressed against the edge 4 a of the opening 4, a central engagement recess 51 for the compression means 40, and a central engagement recess 51. There are provided two screw holes 41 that are opposed to each other.

As shown in FIG. 2, the pressing plate 20 is provided with two concentric arc grooves 42 through which set screws 52 that are screwed into the screw holes 41 of the lid body 10 are inserted. A screw hole 22 into which the screw member 30 is screwed is provided at the center position of the pressing plate 20 corresponding to the recess 51. The screw member 30 is rotatably engaged with the engaging recess 51 of the lid body 10.
In the lid 6 of the first embodiment, the pressing plate 20 is in contact with the outer surface 18 of the lid 10 so as to overlap each other, and a set screw 52 is inserted from the arc groove 42 of the pressing plate 20 so that the screw hole 41 of the lid 10 is obtained. The lid 10 and the pressing plate 20 are coupled to each other, the screw member 30 is screwed into the screwing hole 22, and the tip thereof is brought into contact with and engaged with the engagement recess 51 of the lid 10. As a single assembly.

Closing the opening 4 with the lid 10 inserts the lid 6 into the opening 4 and presses against the lid 10 after the inclined surface 11 of the lid 10 abuts the edge 4 a of the opening 4. The plate 20 is rotated within the range of the arc groove 42 to engage the engaging portion 21 with the locking portion 5d, and then the screw member 30 is rotated by a knob 31 fixed to the tip of the screw member 30 with a stop pin 32. It moves to elastically deform the center of the pressing plate 20 away from the lid 10 (for example, FIGS. 7 and 8), and presses the lid 10 toward the opening 4 and the barrel main body by the restoring force of this elastic deformation. .
The lid 6 of the first embodiment can be lidded and can generate a large elastic force with the screw member 30 at one central portion. The inclined surface 11 of the lid 10 and the tapered surface (edge 4a) of the opening 4 of the opening frame 5 are brought into close contact with each other without being separated from each other so that the object to be plated enters. There is no gap.

In the second embodiment shown in FIGS. 4 to 8, the opening frame 5 is formed at the opening 4 having a rectangular shape in a plan view in which an object to be plated can be taken in and out, and the edge 4 a of the opening 4. 4, a lid fitting portion 61 projecting outward from the barrel body 2 so as to surround the outer periphery 4, and an engagement member formed on the rising wall 5 e and detachably engaged with the engagement portion 21 of the pressing plate 20. A joint portion 62 is provided.
A groove portion 64 is provided on the side opposite to the opening portion of the lid fitting portion 61 that protrudes outward from the barrel body 2 of the opening frame body 5, and the outer peripheral surface 63 facing the groove portion 64 of the lid fitting portion 61 forms an inclined surface. ing. Further, the engaged portion 62 is provided by opening the inside of the rising wall 5e, and is inclined toward the lower barrel where the pressing plate 20 is engaged as shown in FIG.

The lid 6 is provided with a lid 10 provided with a fitting recess 13 to be fitted to the lid fitting portion 61, and 3 prevents the detachment from the barrel body 2 by pressing the lid 10 toward the barrel body 2. A screw member 30 that elastically separates the pressing plate 20 from the lid body 10 between the pressing plate 20 and the lid body 10 and the pressing plate 20 and applies a pressing force to the lid body 10 toward the barrel body 2 side; The elastic member 40 is constituted by the members of the knob 31 and the stop pin 32.
A recess inside the periphery 16 of the lid 10 is a fitting recess 13 that fits into the protruding lid fitting portion 61. In addition, the periphery 16 of the lid body 10 has a convex shape, and is fitted with the groove portion 64 of the opening frame body 5. The outer peripheral surface 15 of the fitting recess 13 forms an inclined surface.

In the second embodiment, the pressing plate 20 is a rectangle that is slightly longer than the width of the opening 4 as shown in FIG. . The front end of each pressing plate 20 serves as an engaging portion 21 that is detachably engaged with the engaged portion 62 of the opening frame 5. The pressing plate 20 is not limited to three, but can be increased or decreased.
The shaft portions 3a and 8a of the second embodiment are provided with insertion holes 3d and 8d for inserting electrodes serving as cathodes (however, the insertion hole 8d of the shaft portion 8a is not shown). ing.
The lid 6 of the second embodiment is configured such that the three pressing plates 20 are brought into contact with the outer surface 18 of one lid 10 so that the three engaging holes 12 of the lid 10 and the three pressing plates 12 are pressed. The mutual positions of the screw holes 22 of the plate 20 are aligned. Then, the screw member 30 is inserted into the engagement hole 12 opened on the inner surface 18 a of the lid 10 and screwed into the screwing hole 22 of the pressing plate 20.

After the screw member 30 is inserted until the head 33 of the screw member 30 contacts the step 17 of the engagement hole 12 of the lid body 10, the engagement hole 12 of the lid body 10 is sealed with the sealing member 19. Weld 19a. The screw member 30 is rotatably engaged with the engagement hole 12 of the lid body 10. Thereafter, a knob 31 is fixed to the tip of the screw member 30 with a stop pin 32, thereby preparing a single assembly.
Closing the opening 4 with the lid 6 inserts the lid 10 into the opening 4 to bring the outer peripheral surface 63 of the lid fitting portion 61 into close contact with the outer peripheral surface 15 of the fitting recess 13. Thereafter, the engaging portion 21 of the pressing plate 20 is put into the engaged portion 62, and the pressing plate 20 is rotated in the inclined direction of the engaged portion 62 so that the pressing plate 20 does not disengage from the barrel body outward. Like that.

In FIG. 8 illustrating the elastic means 40, the knob 31 at the tip of the screw member 30 is rotated so that the pressing plate 20 is elastically isolated to apply a pressing force to the lid body 10. In addition, the dashed-dotted line of FIG. 8 has shown the condition before closing of the opening part 4 by the covering tool 6. FIG.
When the outer circumferential surface 15 of the fitting recess 13 of the lid 10 presses the outer circumferential surface 63 of the lid fitting portion 61 protruding outward from the barrel body 2 by the pressing force, the lid fitting portion 61 compresses the opening 4. The opening edge 4 a of the lid fitting portion 61 is pressed against the inner peripheral surface 14 of the fitting recess 13 of the lid body 10.

The outer peripheral surface 15 of the fitting recess 13 is formed on an inclined surface that is in contact with the inclined surface of the outer peripheral surface 63 of the lid fitting portion 61 that forms the edge 4a of the opening 4, and the pressing force is applied to both inclined surfaces. It works closely. This pressing force presses the opening edge 4a against the inner peripheral surface 14 of the fitting recess 13 of the lid body 10 to bring the inner peripheral surface 14 of the fitting recess 13 into close contact with the opening edge 4a. It becomes power. Therefore, no small gap is generated between them.
In the present invention, the shape of each member in the first and second embodiments and the positional relationship between the front, rear, left, and right are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously deformed, and a combination can also be changed.

  For example, the present invention is effective when the object to be plated is minimized, and a good plated object can be obtained even for an object whose shape is complicated and the corner portion is difficult to plate.

It is a partial cross section front view of the barrel of the 1st Embodiment of this invention. It is a decomposition | disassembly development view of the opening frame body of 1st Embodiment, and a covering tool. It is a top view of the barrel with the lid. It is a partial cross section front view of the barrel of the 2nd Embodiment of this invention. It is a partial cross section side view of the cover tool. It is a partial cross section front view of the barrel main body. It is a cross-sectional side view of the barrel. It is an expanded sectional view of the principal part of the barrel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Barrel 2 Barrel main body 3 End member 4 Opening part 4a (opening part) edge 5 Opening frame body 6 Covering tool 7a Porous 10 Lid body 11 Inclined surface 13 Fitting recessed part 14 (Fitting recessed part) Inner peripheral surface 15 (Fitting) Recessed portion) outer peripheral surface 20 pressing plate 21 engaging portion 30 screw member 40 elastic means 61 lid fitting portion 63 (lid fitting portion) outer peripheral surface

Claims (5)

A barrel body which is formed in a substantially polygonal cylinder shape with both end faces and surrounding multi-faces, and which is porous on the other face except for the surrounding face 1 and capable of storing an object to be plated, and on the one face of the barrel body It has an opening frame that is arranged and has an opening, and a lid that opens and closes the opening of the opening frame,
The lid includes a lid that presses an inclined surface against the edge of the opening to close the opening, and an engaging portion provided on the peripheral portion is detachably engaged with the opening frame and the lid is barreled. A pressure plate that presses against the main body side to prevent detachment, and the lid member is elastically separated from the lid body between the lid body and the pressure plate, and the barrel body on the lid body A plating barrel, characterized in that it is provided with a pressing means for applying a pressing force to the side.   The opening edge of the opening frame is formed into a circular outwardly extending tapered surface, the inclined surface of the lid is formed into a tapered surface that is in close contact with the opening edge, and the elastic means is rotatably engaged with the lid. The plating barrel according to claim 1, wherein the plating barrel is formed by a screw member screwed onto the pressing plate. A barrel body which is formed in a substantially polygonal cylinder shape with both end faces and surrounding multi-faces, and which is porous on the other face except for the surrounding face 1 and capable of storing an object to be plated, and on the one face of the barrel body It has an opening frame that is arranged and has an opening, and a lid that opens and closes the opening of the opening frame,
The opening frame body has a lid fitting portion protruding outward from the barrel body around the opening portion, and the covering tool has a fitting recess portion that fits into the lid fitting portion. A lid that closes, and a pressing plate that detachably engages the engaging portion with the opening frame and presses the lid toward the barrel body to prevent detachment,
The outer peripheral surface of the lid fitting portion is formed as an inclined surface that presses the outer peripheral surface of the fitting concave portion of the lid body and presses the opening edge of the lid fitting portion against the inner peripheral surface of the fitting concave portion of the lid body. A plating barrel characterized by that.   The lid device is characterized in that a pressing means is provided between the lid and the pressing plate to elastically separate the pressing plate from the lid and to give the pressing force to the barrel main body to the lid. The plating barrel according to claim 3. A screw member in which the outer peripheral surface of the fitting recess is formed into an inclined surface that is in contact with the inclined surface of the outer peripheral surface of the lid fitting portion, and the elastic means is rotatably engaged with the lid and screwed into the pressing plate. The plating barrel according to claim 4, wherein the plating barrel is formed of

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