JP7108289B2 - 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 (the 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 processed products 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, and the barrel is detachable. The lid includes a rocking support shaft, a lever portion extending to one side in the radial direction of the rocking support shaft, and a lever portion projecting from the lever portion beyond the rocking support shaft so as to move when the lever portion rocks. and an engaging projection that can be disengaged from the engaging projection provided on the barrel body.

Preferably, the lever portion is provided with a swing angle not exceeding 1/3 of a turn.
The barrel lid is provided with a lever stopper that engages with the lever portion to hold the lever portion in a non-pivoting state when the engaging protrusion is engaged with the engaged portion of the barrel body. can be assumed to be

Further, the barrel lid includes a lever interference portion protruding from a level of the swing locus of the lever portion within a range in which the lever portion warps due to elastic deformation in the axial direction of the swing support shaft, and the lever portion A lever fitting portion formed at a height equal to or lower than the rocking locus level of the lever portion at a position beyond the lever interference portion, and a height difference between the lever interference portion and the lever fitting portion. It is preferable that a lever stopper having a detent portion that prevents the pivoting return of the portion is provided.

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 lid|cover stop mechanism. FIG. 4 is a view for explaining swinging of the lever portion based on the AA arrow view of FIG. 3; 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 is a plan view 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 5 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 prevent the passage of the article to be processed but do not hinder the flow of the processing liquid. 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 article 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 a pivot shaft 23 , a lever portion 24 and an engaging projection 25 . Further, the barrel lid 10 is provided with a lever stopper 26 for restricting the rocking motion of the lever portion 24 .
At least one such lid stopper mechanism 21 may be provided for the barrel lid 10 . However, since there is no particular restriction 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, versatility in use is ensured and the locking action is ensured and stabilized. In order to achieve this, in the first embodiment, one each (two in total) are provided near both ends of the barrel lid 10 in the cylinder axis direction.

The swing support shaft 23 is provided so as to protrude in the radial direction of the barrel lid 10 (direction perpendicular to the cylinder axis). In the first embodiment, the rocking support shaft 23 is arranged at the peak position of the two slopes of the barrel lid 10, but it can also be arranged on the slope side.
The lever portion 24 is provided so as to extend in one radial direction with respect to the swing support shaft 23 and is swingable around the swing support shaft 23 .

A structure is adopted in which the swing support shaft 23 is held in a rotatable and non-separable state with respect to the barrel lid 10 so that the swing support shaft 23 and the lever portion 24 can rotate integrally. Alternatively, the rocking support shaft 23 is fixed to the barrel lid 10 in a non-rotating state, and the lever portion 24 is rotatable with respect to the rocking support shaft 23 and cannot be separated. You may adopt the structure to hold|maintain at.

The engaging projection 25 is provided so as to protrude in the direction opposite to the direction in which the lever portion 24 protrudes from the pivot shaft 23 . Therefore, the engaging projection 25 is provided in an extended shape. Therefore, as shown in FIG. 3, by swinging the lever portion 24 around the swing support shaft 23, the engagement projection 25 also swings in the opposite phase, and the swing support shaft 23 The projecting dimension in the radial direction of the engaging projection 25 centered on is displaced.

As is clear from FIG. 1, when the barrel lid 10 is removed from the barrel body 11, the lid stopper mechanism 21 is in an unlocked state, and the engagement projection 25 at this time is in an arrangement relationship that does not protrude from the barrel lid 10. It has become.
On the other hand, as is clear from FIG. 2 (see also FIG. 3), when the barrel lid 10 is connected to the barrel body 11 and the lid stopper mechanism 21 (lever portion 24) is swung to the locked state, the engagement is effected. The mating projection 25 projects from the barrel lid 10. - 特許庁

In addition, in the first embodiment, the engaging projection 25 is an eccentric disk provided eccentrically with respect to the axis of the swing support shaft 23 . Further, the end wall 3 of the barrel lid 10 is extended over the two slopes of the barrel lid 10 so as to protrude outward, thereby adopting a structure that also serves as a reinforcing rib 27 .
Therefore, a horizontal hole 30 is provided through the thickness of the reinforcing rib 27 to allow the engaging projection 25 to swing within the horizontal hole 30 . The structure provided with such HY reinforcing ribs 27 and horizontal holes 30 is also excellent in that it can prevent the lever portion 24 from swinging in the opposite direction.

On the other hand, the flange portion 15 of the barrel body 11 is formed with an elongated through-hole penetrating through the thickness of the flange, and this through-hole serves as an engaged portion 29 with which the engaging projection 25 engages. .
For this reason, when the lid stopper mechanism 21 is locked, the engaging projection 25 protrudes most outwardly from the barrel lid 10 along the cylinder axis direction. are adapted to engage. Thereby, separation of the barrel lid 10 from the barrel main body 11 is prevented.

When the lid stopper mechanism 21 is in the unlocked state, the engagement projection 25 is retracted to the maximum with respect to the barrel lid 10 and does not protrude from the barrel lid 10 (stored state). It does not engage with the joining portion 29 (disengages from the engaged state). As a result, the barrel lid 10 can be attached to and detached from the barrel main body 11 .
At this time, the swing angle allowed for the lever portion 24 is within a range not exceeding 1/3 rotation (equivalent 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.
It should be noted that "1/3 rotation" of the swing angle of the lever portion 24 is not strictly limited to 120°, and similarly "1/4 rotation" is not strictly limited to 90°. do not have. In either case, a certain range of numerical values is allowed, and the point is that the operation of the lever portion 24 is a "twist operation" that does not require re-holding.

The lever stopper 26 includes a lever interference portion 32 , a lever fitting portion 33 and a detent 34 .
The lever interference portion 32 is arranged within a range where the lever portion 24 is warped due to elastic deformation in the axial direction of the swing support shaft 23 so as to exceed the locus level in the locus along which the lever portion 24 swings (contact interference height). Therefore, as shown in FIG. 4 , by swinging the lever portion 24 , the lever portion 24 rides on the lever interference portion 32 .

As shown in FIGS. 1 and 2, in the first embodiment, the lever interference portion 32 protrudes over two slopes of the barrel lid 10, and employs a structure that also serves as a reinforcing rib 36 for the barrel lid 10. I have
Further, when the lever portion 24 before riding on the lever interference portion 32 is swung in the locking direction, it becomes easier to ride on it, and conversely, the lever portion 24 riding on the lever interference portion 32 is swung in the unlocking direction. A gently inclined portion 37 is provided adjacent to the lever interfering portion 32 so as to make it easier to get off when it is lifted. Further, in order to smoothly perform such an operation of getting on and off, the lever portion 24 is made of resin so that elastic deformation can occur relatively easily.

The lever fitting portion 33 is formed to have a height equal to or lower than the rocking locus level of the lever portion 24 at a position where the lever portion 24 has overcome the lever interference portion 32 . Since the lever fitting portion 33 is positioned adjacent to the lever interference portion 32, it can be said that the lever interference portion 32 is formed in a concave shape.
The depth of the lever fitting portion 33 (difference in height from the lever interference portion 32) does not exceed the thickness of the lever portion 24, and the lever portion 24 is fitted into the lever fitting portion 33. It is preferable to prevent the lever portion 24 from being buried in the lever fitting portion 33 even in the state of being closed. By doing so, it is possible to prevent a situation in which it becomes difficult to remove the lever portion 24 fitted in the lever fitting portion 33 from the lever fitting portion 33. be able to).

The detent 34 is a portion formed by the height difference between the lever interference portion 32 and the lever fitting portion 33, and can prevent the swinging return of the lever portion 24. As shown in FIG.
By providing such a lever stopper 26, when the lid stopper mechanism 21 is locked, the lever portion 24 can be held in a non-pivotable state, and the engaging projection 28 is thus arranged to be held in the barrel. The state of being engaged with the engaged portion 29 of the main body 11 can be maintained.

By the way, FIG. 5 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. 5 .
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 of a horizontally elongated integral shape). It is possible.

That is, in the case of a connection type as shown in FIG. 5, the end wall 3 of the connection portion functions as a partition wall, and originally what can be called "a pair of end walls 3" is 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. 5) in the same direction as the cylinder axis direction of the cylinder wall 4 .
FIG. 6 shows another example of the lid stopper mechanism 21. As shown in FIG. 6, the engaging projection 28 is not formed using an eccentric disk, but is formed as a square end extending straight from the tip of the lever portion 24 beyond the pivot shaft 23. It is what I let you do.

Thus, the shape of the engaging protrusion 28 is not particularly limited.
Note that FIG. 6 illustrates a case where the end wall 3 of the barrel lid 10 is not provided with the reinforcing ribs 27 .
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 described that the lever portion 24 is operated to swing, it is also described that the rotation angle is preferably less than 1/3 rotation. , the burden on the operator required for the operation is reduced. When adopting such a small swing angle, it is also possible to form the lever portion 24 in a dial shape such as a disc shape. Permissible.

The rocking operation of the lever portion 24 may be performed manually, but it can also be mechanized (automated) by a device attached to the treatment tank 40 or the like.
The lever fitting portion 33 may be out of contact with the lever portion 24 when the lever portion 24 is fitted. In short, it is sufficient that the lever interference portion 32 and the inclined portion 37 prevent the engaged lever portion 24 from intentionally deviating from the lever engaging portion 33 .

REFERENCE SIGNS LIST 1 Barrel 3 End wall 4 Cylindrical wall 5 Workpiece housing 7 Electrode hole 10 Barrel lid 11 Barrel main body 12 Opening 15 Flange 20 Fitting jetty 21 Lid stopper mechanism 23 Pivot shaft 24 Lever 25 Engagement protrusion 26 Lever stopper 27 Reinforcing rib 28 Engaging projection 29 Engaged portion 30 Horizontal hole 32 Lever interfering portion 33 Lever fitting portion 34 Detent 36 Reinforcing rib 37 Gradient portion 40 Treatment tank

Claims (3)

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 having an opening for loading and unloading processed products formed in a part of the cylindrical wall in the circumferential direction and a barrel lid having a size to close the opening of the barrel body are detachably connected. cage,
The barrel lid has
a swing support shaft; a lever portion extending radially to one side of the swing support shaft; and an engaging projection that can be freely engaged and disengaged from the provided engaged portion. cage,
The barrel lid is provided with a lever stopper that engages with the lever portion to hold the lever portion in a non-pivotable state when the engaging projection is engaged with the engaged portion of the barrel body. be taken A barrel characterized by: 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 having an opening for loading and unloading processed products formed in a part of the cylindrical wall in the circumferential direction and a barrel lid having a size to close the opening of the barrel body are detachably connected. cage,
The barrel lid has
a swing support shaft; a lever portion extending radially to one side of the swing support shaft; and an engaging projection that can be freely engaged and disengaged with the provided engaged portion,
The barrel lid includes a lever interference portion that protrudes from the level of the swing locus of the lever portion within a range in which the lever portion warps due to elastic deformation in the axial direction of the swing support shaft, and the lever portion extends from the lever. A lever fitting portion formed to a height equal to or lower than the rocking locus level of the lever portion at a position beyond the interference portion, and a height difference between the lever interference portion and the lever fitting portion. A lever stopper having a detent portion that prevents swing return is provided. A barrel characterized by: The lever portion is provided with a swing angle not exceeding 1/3 rotation. 3. A barrel according to claim 1 or claim 2, characterized in that

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