JP7108290B2 - barrel - Google Patents

Description

The present invention relates to barrels used for plating and the like.

As a barrel used for surface treatment such as electroplating (including coloring and polishing), it is well known that it is used while swinging like a cradle in a treatment tank or rotating around a horizontal axis. is. This type of barrel basically has a pair of end walls separated from each other and a water-permeable tubular wall surrounding the periphery between the pair of end walls.

By the way, by making a part of the cylinder wall in the circumferential direction (such as a mountain-shaped part including two adjacent slopes when the cylinder wall is a regular hexagonal cylinder) freely connectable and detachable, the barrel lid on the detachable side and the receiving side can be separated. A barrel body on the side is known (see Patent Document 1, etc.). In this case, an open portion formed in the barrel main body by removing the barrel lid serves as an opening for taking in and out the workpiece.

In this type of barrel, when the opening of the barrel body is closed with the barrel lid, the barrel lid does not come off due to the vibration and centrifugal force generated when the barrel swings and rotates, as well as the load from the processed product. Another type employs a lock mechanism to keep the barrel lid closed.
For example, in Patent Document 1, three tightening members (bars bent in a "<" shape) bent in a mountain shape along the two slopes are provided on the barrel lid, and both ends of these tightening members After biting into the hook of the barrel body, by rotating the screw-type dial provided in the center of the tightening member (corresponding to the top position of the two slopes on the barrel lid), the tightening member is lifted from the barrel lid. , and a contact force on the hook at both ends (an effect of pushing the barrel lid against the barrel body by repulsion against this contact force).

JP-A-6-49696

In surface treatment using a barrel, the article to be treated in the barrel is replaced each time one cycle of treatment is completed. Since the replacement work of the article to be treated greatly influences the flow (cycle time) of the entire surface treatment, it is required to be performed with high efficiency.
However, with this type of barrel, the barrel lid cannot be removed from the barrel body without taking the time and effort to rotate a screw-type dial many times, as exemplified in Patent Document 1. Of course, even when closing the barrel body with the barrel lid, it is necessary to turn the screw dial many times. In other words, the trouble of turning the dial, etc., is required at least twice per one cycle of processing for the barrel.

Therefore, the operation of opening and closing the barrel lid has been a major bottleneck in shortening the surface treatment cycle time. In addition, as mentioned above, in today's surface treatment, there is a desire to improve the treatment efficiency. The operation of opening and closing the barrel lid is not only a problem of cycle time, but also a heavy labor burden for workers.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. To provide a barrel capable of shortening the cycle time of the entire surface treatment by improving the efficiency of the replacement work of products.

In order to achieve the above object, the present invention takes the following measures.
That is, the barrel according to the present invention is a barrel having a pair of end walls separated from each other and a water-permeable cylindrical wall surrounding the periphery between the pair of end walls, wherein the cylindrical wall has A barrel body having an opening for loading and unloading objects to be processed formed in a part of the circumferential direction and a barrel lid having a size to close the opening of the barrel body are detachable from each other. The barrel lid is provided with an opening/closing operation section that can be operated from the outside of the barrel while the barrel lid is coupled to the barrel main body, and a rotation or swing operation applied to the opening/closing operation section is a linear motion. and an engaging motion part that can be disengaged from the engaged part provided on the barrel body by linear motion taken out by the motion transforming part. and

It is preferable that the opening/closing operation part is provided with a rotation angle not exceeding 1/3 rotation, preferably a rotation angle corresponding to 1/4 rotation.
A pair of the engaging portions are provided corresponding to the pair of end walls of the barrel body, respectively, and the engaged portions are provided on the pair of end walls of the barrel body, respectively. A pair of the motion converters are provided in a symmetrically arranged structure in which the respective engagement motion portions corresponding to each of the end walls are slid in a direction of separating from each other or approaching each other when the opening/closing operation portion is operated. can be assumed to be

Alternatively, a pair of the engaging operation portions are provided corresponding to two opposite sides of the opening in a direction orthogonal to a cylinder axis set on the cylinder wall of the barrel body. The engaged portions are provided on the two opposing sides of the opening, respectively, and the motion converting portion is adapted to engage with each of the two opposing sides of the opening when the opening/closing operation section is operated. A pair may be provided with a symmetrical arrangement structure in which the operating parts are slid in the directions of separating from each other or approaching each other.

In the barrel according to the present invention, the connection and disconnection (opening and closing) of the barrel lid with respect to the barrel body can be performed quickly and easily, and the efficiency of the replacement work of the workpieces to be treated is improved, thereby shortening the cycle time of the entire surface treatment. can be shortened.

1 is a perspective view showing a state in which a barrel main body and a barrel lid are separated from the first embodiment of the barrel according to the present invention; FIG. 1 is a perspective view showing an assembled state of a first embodiment of a barrel according to the present invention; FIG. It is the top view which showed the opening-and-closing operation part, (a) is an unlocked state, (b) is a locked state. 1 is a side view showing a state of use of a barrel according to a first embodiment of the present invention; FIG. [ Fig. 10] Fig. 10 is a perspective view showing a state in which the second embodiment of the barrel according to the present invention is separated into a barrel main body and a barrel lid. It is mechanism explanatory drawing which showed another example of the lid|cover stop mechanism. FIG. 11 is a mechanism explanatory diagram showing another example of the lid stopper mechanism;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described based on the drawings.
1 to 4 show a first embodiment of barrel 1. FIG. The barrel 1 has a pair of end walls 3 separated from each other and a water-permeable cylindrical wall 4 surrounding the periphery between the pair of end walls 3, and the inside is hollow. be made. This internal cavity is used as a processed object housing portion 5 for bringing the processed object and the processing liquid into contact with each other. The end wall 3 and the cylindrical wall 4 are made of an insulating material such as vinyl chloride resin.

The cylindrical wall 4 (including the end wall 3 in some cases) is formed with many small holes, slits, meshes, etc. (none of which are shown) which do not impede the passage of the processing liquid but do not allow the passage of the processing object. These ensure water permeability inside and outside the barrel. In the end wall 3, an electrode hole 7 for inserting a cathode electrode (not shown) is formed at a position through which the cylindrical shaft passes (a pivotal or rotational axial position).

In this barrel 1, a part of the cylinder wall 4 in the circumferential direction and extending between the pair of end walls 3 is detachable from other parts. Here, the barrel lid 10 is the detached side. A barrel body 11 is formed on the side (receiving side) on which the detached barrel lid 10 is returned and connected.
That is, the barrel 1 has a barrel body 11 and a barrel lid 10 , and the barrel lid 10 can be opened and closed with respect to the barrel body 11 .

The end wall 3 may be entirely provided only on the barrel main body 11 or divided and distributed to both the barrel lid 10 and the barrel main body 11 . The first embodiment is the latter (example of distribution).
In the first embodiment, the cylindrical wall 4 is formed in a regular hexagonal cylindrical shape. What is formed is made removable as a barrel lid 10 .

As a matter of course, the barrel main body 11 is a portion of the cylinder wall 4 excluding the barrel lid 10 . A rectangular open portion formed at a position where the barrel lid 10 is separated from the barrel body 11 serves as an opening 12 used when an object to be processed is introduced into or discharged from the barrel 1 .
Needless to say, barrel lid 10 is sized to close opening 12 in barrel body 11 .

The opening 12 provided in the barrel body 11 is a part of the cylinder wall 4 in the circumferential direction and has a size that extends between the pair of end walls 3 . The four standing walls (long side walls and short side walls) forming the periphery of the opening are formed to be vertical walls orthogonal to the plane of the opening (imaginary upper surface surrounded by the edge of the opening). That is, it can be said that the opening 12 has the maximum width on the opening side (opening plane) in the distance between the opposed long side walls and the distance between the opposed short side walls.

Therefore, when the barrel main body 11 with the barrel lid 10 detached is oriented so that the opening 12 faces directly downward, the inner periphery of the processing object accommodating portion 5 formed in the barrel main body 11 All the surfaces are oriented in the vertical direction, and all the processed items stored in the processed item storage section 5 fall straight down without being caught.
The barrel body 11 is provided with a pair of flange portions 15 projecting radially outward from the cylinder wall 4 in a circular plate shape so as to overlap the pair of end walls 3 . The amount of projection of these flange portions 15 is such that the outer peripheral portion of the flange portion 15 exceeds the barrel lid 10 when the barrel lid 10 is coupled to the barrel main body 11 .

In order to position the barrel lid 10 relatively when the barrel lid 10 is put on the barrel body 11, the opening edges facing each other across the opening 12 in the cylinder axis direction (long side) are provided with: A pair (two) of fitting jetties 20 are provided. These pair of fitting jetties 20 allow both sides of the barrel lid 10 to be positioned in a fitted state.
Such a barrel 1 is provided with a lid stop mechanism 21 for locking or unlocking the coupling state of the barrel lid 10 with respect to the barrel body 11 .

The lid stopper mechanism 21 has an opening/closing operation portion 23 , an operation converting portion 24 and an engaging operation portion 25 provided for the barrel lid 10 . Further, the barrel body 11 is provided with an engaged portion 26 with which the engaging operation portion 25 engages.
At least one opening/closing operation unit 23 , operation conversion unit 24 , and engagement operation unit 25 may be provided for each barrel lid 10 . However, in the first embodiment, in order to secure and stabilize the locking action, one opening/closing operation portion 23 is provided on each of the two slopes of the barrel lid 10 (two in total), and the operation converting portion 24 are provided in pairs (two pieces) for one opening/closing operation portion 23 . That is, a total of four motion converters 24 are provided for one barrel lid 10 .

In addition, since the engagement operation portion 25 and the operation conversion portion 24 correspond one-to-one, a total of four pieces are provided as one barrel lid 10 (the engagement operation portion 25 can be used for one opening/closing operation). A pair is provided in the portion 23). Each of these engaging operation portions 25 is allocated so as to correspond to a pair of end walls 3 for each slope of the barrel body 11 .
The engaged portion 26 with which the engaging portion 25 engages is formed by an elongated through-hole penetrating through the thickness of the flange portion 15 of the barrel body 11 . .

The opening/closing operation part 23 is arranged so as to be operable from outside the barrel while the barrel lid 10 is coupled to the barrel main body 11 , that is, provided on the sloped outer side of the barrel lid 10 . Since there is no particular limitation on the coupling direction of the barrel lid 10 and the barrel main body 11 in the direction of the cylinder axis set in the cylinder wall 4, the opening/closing operation part 23 can be arranged in the cylinder on each inclined surface in order to provide versatility in use. A central position in the axial direction is preferred.

As shown in FIG. 3, the opening/closing operation portion 23 is, for example, a disc-shaped dial held rotatably about a rotating shaft 30 .
The motion conversion unit 24 converts the rotational force into a linear motion when the opening/closing operation unit 23 is rotated. In the first embodiment, two types of locking cam mechanism 24a and unlocking cam mechanism 24b are illustrated.

Specifically, the locking cam mechanism 24a includes a push-out cam 31 that protrudes radially from the rotary shaft 30 on the back surface of the opening/closing operation portion 23 and is rotatable integrally with the opening/closing operation portion 23; 31 and a driven cam 32 formed by the end face of the engaging operation portion 25 facing the cam 31 .
Since the pushing cams 31 are provided at two opposite positions (two positions separated by 180°) with respect to the rotary shaft 30 (there are two of them), the material forming the pushing cams 31 is rectangular as a whole. is presenting.

Because of such a structure, the locking cam mechanism 24a is such that when the opening/closing operation portion 23 is rotated clockwise from the state shown in FIG. The point of contact between the push-out cam 31 and the driven cam 32 is moved away from the rotating shaft 30, and as a result, the engaging portion 25 is pushed out (see FIG. 3(b)).
The push-out cam 31 is formed by chamfering a pair of diagonal corners of a rectangular material, and when the driven cam 32 is pushed out, the contact with the driven cam 32 is small resistance. It is designed to be done smoothly. Therefore, the engagement operation portion 25 can be pushed out easily.

In the pushed state of the engaging portion 25 shown in FIG. 3(b), the corner portion 37 adjacent to the pushing cam 31 is in contact with the driven cam 32, but the corner portion 37 is substantially perpendicular. formed. Therefore, even if an external force acts on the engagement portion 25 in the push-back direction, the corner portion 37 comes into contact with the driven cam 33 with high surface pressure, and the rotary shaft 30 is spontaneously rotated counterclockwise. rotation is prevented. That is, unless the opening/closing operation portion 23 is intentionally rotated counterclockwise, the engagement operation portion 25 once pushed out is prevented from being retracted.

On the other hand, the unlocking cam mechanism 24b includes a pull-in cam 35 having an arcuate curve recessed in the upper surface of one end of the engaging operation portion 25, and an arcuate curve that meshes with the pull-in cam 35 on the back surface of the opening/closing operation portion 23. It is configured by combination with a driven cam 36 formed with
The arc curve of the retracting cam 35 and the arc curve of the driven cam 36 are both formed around the same position eccentric from the rotation shaft 30 of the opening/closing operation section 23 . When the two mesh with each other, as shown in FIG.

With such a structure, when the unlocking cam mechanism 24b rotates the opening/closing operation portion 23 counterclockwise from the state shown in FIG. The more, the point of contact between the pull-in cam 35 and the driven cam 36 comes closer to the rotary shaft 30, and as a result, the engaging portion 25 is pulled in. As shown in FIG.
At this time, in the locking cam mechanism 24a, the pushing cam 31 rotates integrally with the rotary shaft 30, so that the position of contact between the pushing cam 31 and the driven cam 32 is also determined by the rotary shaft 30.
, and the pull-in operation of the engagement operation portion 25 is not hindered.

As shown in FIGS. 1 and 2 , the engaging portion 25 is provided on the outer surface of the barrel lid 10 so as to be slidable in a direction parallel to the cylinder axis set on the cylinder wall 4 .
The limitation of the stroke of the slide operation part 25 and the sliding contact state of the slide operation part 25 with respect to the barrel lid 10 are determined by the long hole 38 formed in the engagement operation part 25 and the barrel lid 10 passing through the long hole 38 . It is structured to be held by a guide bolt 39 fixed to the .

As is clear from FIG. 1, the tip of the engaging portion 25 should not protrude from the barrel lid 10 when the barrel lid 10 is removed from the barrel main body 11 (when the lid stopper mechanism 21 is unlocked). By coupling the barrel lid 10 to the barrel main body 11 and locking the lid stopper mechanism 21, the barrel lid 10 protrudes from the barrel lid 10.例文帳に追加
That is, when the opening/closing operation portion 23 is operated, the respective engaging operation portions 25 corresponding to the pair of end walls 3 (flange portions 15) of the barrel lid 10 are slid in a direction to separate them from each other, or in the opposite direction. and slide it in a direction to bring them closer to each other.

Therefore, in the locked state of the lid stopper mechanism 21, the tip of the engaging portion 25 engages with the engaged portion 26 provided on the flange portion 15 of the barrel body 11, thereby preventing the barrel lid 10 from coming off. It is a thing.
In short, the lid stopper mechanism 21 locks the barrel lid 10 coupled to the barrel body 11 or releases the engagement and couples the barrel lid 10 to the barrel body 11 by rotating the opening/closing operation portion 23 . The barrel lid 10 can be unlocked or switched.

At this time, the rotation angle allowed for the opening/closing operation portion 23 is within a range not exceeding 1/3 rotation (corresponding to 1/4 rotation in the first embodiment).
As a result, the connection and disconnection (opening and closing) of the barrel lid 10 with respect to the barrel main body 11 can be performed quickly and easily, and the efficiency of the replacement work of the workpieces to be treated can be improved, resulting in the entire surface treatment cycle. Time can be shortened.

The "1/3 rotation" of the rotation angle of the opening/closing operation portion 23 is not strictly limited to 120°, and similarly, the "1/4 rotation" is not strictly limited to 90°. do not have. In any case, a certain range of numerical values is allowed, and the point is that the opening/closing operation portion 23 can be operated by a "twist operation" that does not require re-holding.
By the way, FIG. 4 shows an example of transportation in the case of carrying out the plating treatment in the treatment bath 40. In FIG. It is illustrated in a state of being connected in the left-right direction of FIG. 4 .

In such a case, each barrel 1 has a pair of end walls 3 (flanges 15). However, as for the end wall 3 that constitutes the connecting portion between the two barrels 1, only one end wall 3 may be provided between the two barrels 1 for common use, or may be omitted (instead of being connected, the end wall 3 may be horizontally elongated integrally). It is possible.
That is, in the case of a connection type as shown in FIG. 4, the end wall 3 of the connection portion functions as a partition wall, and what can be called "a pair of end walls 3" is originally elongated by the connection. The end walls 3 are arranged on both end sides (the left end side and the right end side in FIG. 4) in the direction (same as the cylinder axis direction of the cylinder wall 4).

Figure 5 shows a second embodiment of the barrel 1 according to the invention. The second embodiment differs from the first embodiment (see FIGS. 1 and 2) in that the engaging operation portion 25 of the lid stopper mechanism 21 is slid in the direction orthogonal to the cylinder axis of the cylinder wall 4. It is in a certain point to let you.
The engagement operation part 25 is formed in a plate shape elongated along the cylinder axis direction, and the opening/closing operation part 23 and the operation conversion part 24 are provided at the central part in the longitudinal direction.

The detailed structures and effects of the opening/closing operation unit 23 and the motion conversion unit 24 are substantially the same as those described in the first embodiment, and the same reference numerals are assigned to those having the same functions, so that detailed description will be given here. are omitted.
In the second embodiment, the sliding direction of the engaging portion 25 is perpendicular to the cylinder axis because the opening 12 of the barrel body 11 is parallel to the cylinder axis. This is because the engaged portions 26 are provided separately for each of the two sides facing each other perpendicularly to the axial direction. The engaged portion 26 is formed in the shape of a groove that opens laterally over the entire length of the opening edge portion of the opening portion 12 in the cylinder axis direction.

Such a second embodiment is suitable for a case where the barrel lid 10 is formed in a flat plate shape, that is, a case where the cylinder wall 4 is formed in a regular octagonal cylinder shape. It can be said that it is suitable when the dimension of the wall 4 in the cylinder axis direction is formed to be short.
FIG. 6 shows another example of the lid stopper mechanism 21. As shown in FIG. The lid stopper mechanism 21 shown in FIG. 6 uses a parallel link as the motion converter 24 .

That is, a pair of long links 50 arranged on both sides (upper and lower in FIG. 6) are formed with an engagement portion 25 at one end thereof, and these pair of long links 50 are composed of three short links. 51 are linked together. These three short links 51 are attached to the barrel lid 10 with a swinging fulcrum 52 provided in the central portion in the longitudinal direction thereof.
An opening/closing operation portion 23 is provided concentrically with the swing fulcrum 52 of the central short link 51 .

In the lid stopper mechanism 21 having such a configuration, the three short links 51 swing all at once around the individual swing fulcrums 52 by rotating the opening/closing operation portion 23, and the long links 50 move in the opposite directions. will be moved to Therefore, by this, the respective engaging operation portions 25 corresponding to the pair of end walls 3 (engaged portions 26 of the flange portion 15) of the barrel lid 10 are slid in the direction of separating from each other, On the contrary, it is slid in the direction to bring them closer to each other.

FIG. 7 shows yet another example of the lid stopper mechanism 21. As shown in FIG. The lid stopper mechanism 21 shown in FIG. 7 utilizes a combination of rack teeth 55 and pinion gears 56 as the motion converting portion 24 .
That is, a pair of rack teeth 55 are meshed with opposite positions on the outer circumference of the pinion gear 56, and the engaging operation portion 25 is linked to the rack teeth 55 and held swingably via an extension rod 57. It has become a thing.

An opening/closing operation portion 23 is provided concentrically with the rotating shaft of the pinion gear 56 .
In the lid stopper mechanism 21 having such a configuration, the pinion gear 56 moves the rack teeth 55 in the opposite direction by rotating the opening/closing operation portion 23 . With respect to 3 (engaged portion 26 of flange portion 15), the respective engaging operation portions 25 corresponding to each other are swung in a direction of separating from each other, or conversely swung in a direction of approaching each other. do.

By the way, the present invention is not limited to the above embodiments, and can be modified as appropriate according to the embodiments.
For example, in the barrel 1, the cylindrical wall 4 can be formed into a cylindrical shape or a cylindrical shape by polygons other than regular polygons. The shape of the end wall 3 is not limited as long as it can block the end of the cylinder wall 4, and the presence or absence of the flange portion 15 is also not limited.

When the surface treatment is plating, the type of plating, the material and shape of the article to be treated are not limited at all.
Although it has been explained that the opening/closing operation part 23 is operated to rotate, it is also explained that the rotation angle is preferably less than 1/3 rotation. The burden on the operator required for the operation is reduced. When such a small rotation angle is employed, it is possible to form the opening/closing operation portion 23 in a lever shape. be.

The opening/closing operation unit 23 may be operated manually, but it can also be mechanized (automated) by a device attached to the treatment tank 40 or the like.

REFERENCE SIGNS LIST 1 Barrel 3 End wall 4 Cylindrical wall 5 Workpiece accommodating portion 7 Electrode hole 10 Barrel lid 11 Barrel main body 12 Opening 15 Flange 20 Fitting jetty 21 Lid stopper mechanism 23 Opening/closing operation portion 24 Motion conversion portion 24a Cam for locking Mechanism 24b Cam mechanism for unlocking 25 Engagement part 26 Engaged part 30 Rotating shaft 31 Push cam 32 Driven cam 33 Driven cam 35 Pull cam 36 Driven cam 37 Corner part 38 Long hole 39 Guide bolt 40 Treatment tank 50 Long link 51 Short link 52 Rocking fulcrum 55 Rack tooth 56 Pinion gear 57 Extension rod

Claims (2)

A barrel having a pair of end walls separated from each other and a water-permeable cylindrical wall surrounding the periphery between the pair of end walls,
A barrel body in which an opening for loading and unloading objects to be processed is formed in a part of the cylindrical wall in the circumferential direction and a barrel lid formed in a size to close the opening in the barrel body are detachable from each other. and
The barrel lid has
an opening/closing operation part provided in a position that can be operated from the outside of the barrel while the barrel lid is coupled to the barrel main body;
a motion conversion unit that converts a rotation operation or a swing operation applied to the opening/closing operation unit into a linear motion;
an engaging motion part that can be engaged and disengaged from the engaged part provided on the barrel body by linear motion taken out by the motion conversion part;
is provided cage,
A pair of the engaging operation portions are provided so as to correspond to two opposite sides of the opening in a direction orthogonal to a cylinder axis set on the cylinder wall of the barrel body,
The engaged portions are provided on two opposite sides of the opening of the barrel body,
A pair of the motion converters are provided in a symmetrically arranged structure in which the respective engaging motion portions corresponding to the two opposite sides of the opening are slid in a direction to move away from each other or approach each other when the opening/closing operation portion is operated. be taken A barrel characterized by: 2. A barrel according to claim 1, wherein said opening and closing operation portion is provided with an angle of rotation not exceeding 1/3 of a turn.

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