JP2797285B2 - Lid locking mechanism for surface treatment barrel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a barrel for surface treatment used for surface treatment such as plating and zinc phosphate treatment.

[0002]

BACKGROUND ART A surface treatment barrel is used to continuously perform surface treatment such as plating and zinc phosphate treatment. The barrel for surface treatment is generally a porous container having a polygonal cross section (usually hexagonal shape), and is rotatably supported by a frame. An object to be processed is put into the porous container, and is conveyed to a predetermined processing tank by a conveying means via a frame body. When the barrel is immersed in the processing liquid in the processing tank, the processing liquid flows into the porous container from the hole. When the barrel is rotated or rocked in this state, the object in the perforated container is stirred and uniformly contacted with the processing solution, and in the case of plating, the object to be processed in the barrel is further energized as a cathode. Plating or other surface treatment is performed on the surface of the workpiece. After the processing, the barrel is taken out of the processing tank by the transfer means via the frame, and is further transferred to the next predetermined processing tank to perform the next processing.

The barrel for surface treatment is extremely useful because it is sequentially conveyed to a series of treatment tanks and automatically performs successive surface treatments. For example, in the case of zinc plating, a pre-cleaning tank, a degreasing tank, a rinsing tank, a plating tank, and a rinsing tank are arranged, and the barrel is sequentially conveyed and immersed in each of the tanks to automatically perform a series of processing.

[0004]

2. Description of the Related Art FIG. 13 shows a conventional barrel structure.
In the figure, (1) is a container, which has a polygonal cross section and has a large number of holes (3) formed in the container (1), and lead wire insertion holes (5, 5) on both side surfaces (4, 4). 5) is provided. The circumference
An opening (6) is provided on one side of (2), and a lid (7) is detachably attached to the opening (6), and a locking piece ( (8, 8) are mounted so as to be rotatable about the shaft (9, 9), and both ends of the locking pieces (8, 8) are provided with openings.
Lock holes (12,12,1) provided at the front and rear edges (10,11) of (6)
3,13). Then, the lid (7) is attached and detached from the opening (6) when the object to be processed is put in and out of the barrel (14) having the above configuration.

[0005]

In the above conventional structure, when the opening (6) is closed by the lid (7), the lid (7) is fitted into the opening (6) and the locking pieces (8, 8) are engaged. ) To insert the locking pieces (8,8) into the locking holes (12,12,13,13) at the front and rear edges (10,11) of the opening (6).
(See the solid line in FIG. 13), and the locking pieces (8, 8)
Tighten the bolts (15, 15) screwed to the shafts (9, 9) to fix the locking pieces (8, 8) .To remove the lid (7) from the opening (6), , 15), then rotate the locking pieces (8, 8) to lock both ends of the locking pieces (8, 8) with the locking holes (12, 12, 13, 13).
(Dotted line in FIG. 13).

[0006] The attachment and detachment of the lid (7) must be performed manually by an operator, and thus the entry and exit of the object from the barrel (14) is extremely troublesome. This has been a major bottleneck in the continuous and complete automation of surface treatment using barrels. For example, in the case of plating, an object to be processed is taken out of the barrel at the end of the process and post-treatment and drying are performed. At this time, opening and closing of the barrel and taking out the object to be processed must be performed manually. It was impossible to fully automate the process.

[0007]

Means for Solving the Problems The present invention provides an opening (6A) in a peripheral body (2A) of a porous container (1A) rotatably supported by a frame, as means for solving the above-mentioned conventional problems, A lid plate (7) that opens outward on one edge (11A) of the opening (6A).
A cover plate locking mechanism attached to a surface treatment barrel (14A) hinged to the root edge of (A), wherein the cover plate locking mechanism is the other edge of the opening (6A) of the porous container (1A). Hook (13A) provided on the portion (11B) and a straight plate-shaped member provided on the lid plate (7A).
Of the hook (13A), and the hook (13A) is
1B) is provided on a rod (16A) slidably mounted on the left and right sides of the barrel (14A), and the rod (16A) is thus provided by a pair of pressing means (48, 48) arranged on both sides of the barrel (14A). The surface treatment barrel (14A) in which the locking hook (13A) of the rod (16A) and the locking piece (8A) of the lid plate (7A) engage and disengage by being slid left and right. An opening (6A) is provided in the peripheral body (2A) of the porous container (1A) rotatably supported by the frame body, and one edge (11A) of the opening (6A) is provided. ), Hinge the root edge of the lid plate (7A) that opens outward, and further attach a lid plate locking mechanism to the surface treatment barrel (1).
4A), wherein the lid plate locking mechanism is provided on the other edge of the opening (6A) of the perforated container (1A).
(11B), and a straight plate-shaped locking piece (8A) provided on the lid plate (7A).
3A) is provided on a rod (16A) attached to the edge (11B) so as to be slidable left and right, and when the rod (16A) slides left and right, a locking hook (13A) and The locking piece (8A) of the lid plate (7A) is engaged and disengaged, and the barrel
While the object (51) is in the (14A), the rod (16A) of the lid locking mechanism is pressed by the pressing means (4) on one side of the barrel (14A).
Locking hook (13A) by pressing and sliding by 8)
Is released from the locking piece (8A), the lock mechanism is released, and the barrel (14A) is rotated in the direction opposite to the hinged side of the lid (7A), and the opening (6A) moves downward. Then, the lid (7A) is opened by its own weight, the object (51) is dropped and discharged from the opening (6A) by its own weight, and the opening (6A) is further moved upward as the barrel (14A) rotates. At least the object to be treated (5
1) is put into the barrel (14A) through the opening (6A), and further, the barrel (14A) is rotated, and the lid (7A) is tilted by its own weight to close the opening (6A) and to close the lid (7). The locking hook (13A) is engaged with the locking piece (8A) by pressing and sliding the rod (16A) of the locking mechanism with the pressing means (48) on the other side of the barrel (14A) to lock the locking mechanism. An object of the present invention is to provide a method for moving a workpiece (51) into and out of a barrel (14A) that locks the mechanism.

[0008]

The operation of the present invention is as follows. The rod (16A) of the lid locking mechanism is pressed and slid by the pressing means (48) on one side of the barrel (14A) to thereby make the locking hook (1).
3A) is released from the locking piece (8A) to unlock the lid plate (7A) . Suridohaba this time the rod (16A) is a locking piece (8A)
Is naturally regulated by contacting the hook (13A).
It is. Lid plate as the lid plate Te this good Unishi When you unlock (7A) allowed to rotate a porous container (1A) opening (6A) is moved downward (7A) is naturally open by its own weight, The opening (6A) moves upward in the open state. Then, the opening (6A) moves upward and the lid plate (7A) falls down by its own weight and
Immediately before closing the (6A), the rotation of the barrel (14A) is temporarily stopped, the workpiece (51) is put into the barrel (14A) from the opening (6A), and the rotation of the barrel (14A) is started again. Then, when the lid plate (7A) falls down by its own weight and closes the opening (6A), the rod (16A) of the lid plate locking mechanism is pressed by the pressing means (4) on the other side of the barrel (14A).
By sliding in step (8), the hook (13A) is engaged with the locking piece (8A) to lock the lid plate (7A).

When the barrel (14A) is immersed in the processing liquid in this state, the processing liquid flows into the container (1A) through the hole and comes into contact with the object (51). Then, when the barrel (14A) is rotated or rocked, the object (51) is stirred in the barrel (14A) and uniformly contacted with the processing liquid, and is subjected to a phosphate treatment or a surface treatment such as plating by energization. You. After processing, the barrel (14A) is removed from the processing solution, the lid (7A) is unlocked by the lid locking mechanism, and the barrel (14A) is rotated.
As (A) moves downward, the lid plate (7A) opens naturally by its own weight, and the workpiece (51) in the barrel (14A) falls to the outside from the opening (6A) by its own weight and receives a predetermined amount. Housed in the means. Since the locking piece (8A) of the lid plate (7A) is a straight plate,
Or throw the barrel to be processed of the (14A) in (51), there have
When dropping the object to be treated (51) from the barrel (14A) in the
In addition, it hardly interferes with the object to be processed (51).

[0010]

Therefore, according to the present invention, the locking and unlocking of the lid locking mechanism is performed by a simple means of simply pressing the rod of the lid locking mechanism by the pressing means on both sides of the barrel. It is easy to automatically take in and out the processed material, and it is possible to realize completely continuous automation of the surface treatment using the barrel. And when the object to be processed is taken out from the barrel, the object to be processed rarely remains in the barrel because the opening is large,
Also it is possible to perform the same operation regardless of the direction of rotation, also 該被treated in and out of the treatment product into the barrel
Can be performed without damage .

[0011]

1 to 12 show one embodiment of the present invention, wherein (1A) is a container having a polygonal cross section, and the container (1A) has a large number of holes (3A). Formed, both sides (4A, 4A)
Is provided with lead wire insertion holes (5A, 5A) and one side
The detection pieces (58A, 58B, 58C) of the limit switch are attached to (4A). An opening (6A) is provided on one side of the peripheral body (2A) of the container (1A), and a cover plate (7A) is openably and closably attached to the opening (6A), and the cover plate (7A) The root edge is hinged to one edge (11A) of the opening (6A) via a hinge (20A).

A receiving piece (21A) is further provided on the edge (11A), and when the cover plate (7A) is fully opened, the cover plate (7A) is moved by the receiving piece (21A). As shown in FIG. 2, it is received at a predetermined angle θ with the opening (6A). In the present embodiment, θ is set slightly larger than 90 °.

[0013] The locking mechanism of the lid plate (7A) is a lid plate.
(7A) from a straight plate engaging piece (8A, 8A) is Sashidesa, whereas the container
A rod (16A) is mounted on the upper surface of one edge (11B) of the opening (6A) of (1A) via a bracket (19A, 19A, 19A ') so as to be slidable left and right. At (16A), hooks (13A, 13A), which are hook portions, are attached. Bends (18A, 18A) are formed at both ends of the rod (16A), and the outer surface of the bends (18A, 18A) has an access frame (51) for an object (51) to be described later. A piston rod (49) of an air cylinder (48) as a pressing means arranged in a pair on the left and right on the (40).
An abutment plate (50) formed at the tip is in contact with the rod, and the rod (16A) is pressed by the air cylinder (48) through the bent portions (18A, 18A) to slide left and right. As a result, the locking hooks (13A, 13A) are engaged or disengaged from the locking pieces (8A, 8A).

As shown in FIG. 6, a spring (5) built into the cap (52) is provided at the center of the bracket (19A ′).
A ball (54) urged downward by 3) is attached, and the rod (16A) has a convex portion (56) near the ball (54).
In the locked state shown in FIG. 3, the rod (1
6A) comes into contact with the ball (54) to prevent the rod (16A) from sliding to the left. When the rod (16A) is pushed to the left by the air cylinder (48) to release the lock, the ball (54) overcomes the elasticity of the spring (53) and the ball (54)
4A), and goes into the unlocked state shown in FIG.

As shown in FIG. 7, the barrel (14A) has a T-shaped support frame (22) comprising a head (23) and a leg (24) from which support rods (25, 25) are extended. Is rotatably hung below a leg (24) via a shaft (26). A gear (27) is mounted on one side of the barrel (14A), and the gear (27) meshes with a gear (28) mounted on one inner side of the support frame (22), and The gear (28) further meshes with a gear (29) mounted on one inner surface of the support frame (22), and one outer surface of the support frame (22) is coaxial with the gear (29). Gear (30) is attached.

The barrel (14A) is filled with the object to be treated (51), the cover plate (7A) is closed, and the barrel (14A) is hung on the support frame (22) as described above, and a pre-cleaning tank, a degreasing tank, a water washing tank, It is transported by a suitable transporting means to a predetermined processing tank such as a plating tank or a phosphoric acid processing tank or a chromate processing tank, and is immersed in the processing solution. FIG. 8 shows a state in which the barrel (14A) is immersed in a plating tank (31A). That is, in the plating tank (31A), arms (31B, 31B) are protruded from both sides, receiving pieces (31C, 31C) are attached to the upper ends of the arms (31B, 31B), and the support frame of the barrel (14A) is provided. By receiving the support rods (25, 25) of (22) on the receiving pieces (31C, 31C) of the arms (31B, 31B), the barrel (14A) is connected to the plating tank (22) via the support frame (22). The lead wires (32, 32) are inserted through the lead wire insertion holes (5A, 5A) on both sides (4A, 4A) of the barrel (14A). At this time, a cathode bus bar (not shown) is generally connected to the receiving pieces (31C, 31C) of the arms (31B, 31B), and the lead wires (32, 32) are supported by the support rods of the support frame (22) of the barrel (14A). (25,25).

And a gear of a support frame (22) of the barrel (14A)
(30) is a chain (35) suspended on sprockets (33, 34) mounted on one outer surface of the plating tank (31A).
Mesh with. Sprocket (34) has coaxial sprocket
(36) is attached, and the sprocket (36) is connected to a motor (38) via a chain (37). When the barrel (14A) is immersed in the plating tank (31A) in this way, the plating solution (39) in the plating tank (31A) flows into the barrel (17A) from the hole (3A) in the barrel (14A), and the motor (38) by chain
The sprocket (36) is rotated via (37), and the chain (35) is further rotated via sprockets (33, 34).

When performing a series of surface treatment steps, the chain (35) is stretched over a plurality of treatment tanks used in the step. In this case, the chain (35) is attached to the front end and the rear end of the treatment line. Sprockets (33, 34) are installed. When the chain (35) rotates, the gear (30) of the support frame (22) meshing with the chain (35) also rotates, and accordingly, the gear (29) coaxial with the gear (30) also rotates, and the gear (30) rotates. The rotation of 29) is gear (28),
It is transmitted to the barrel (14A) via the gear (27) and
A) rotates in the direction of the arrow in FIG. As the barrel (14A) rotates, the workpiece (51) is mixed in the barrel (14A), makes uniform contact with the plating solution (39), and moves from the cathode busbar to the arm (31).
B, 31B) and the support frame (2A) of the barrel (14A).
When a current is applied to the lead wires (32, 32) via the support rods (25, 25) of (2), the surface of the object (51) is plated.

When the plating and other treatments are completed, the barrel (14
A) is taken out of the plating tank (31A) via the support frame (22), transported, washed with water, and then suspended on the access frame (40) as shown in FIGS. That is, the receiving piece (4
(41) is attached, the head (23) of the support frame (22) and the support rod (25,
25) is received by the receiving pieces (41, 41) on the upper edge of the access frame (40). In this state, the gear (30) of the support frame (22) meshes with the chain (44) suspended on the sprockets (42, 43) of the access frame (40). Then, a coaxial sprocket (45) is attached to the sprocket (43), and the sprocket (45) is attached to the chain (46).
To the motor (47).

To remove the object (51 ) from the barrel (14A), open the cover plate (7A) and use the motor (47) to rotate the chain (46).
The sprocket (45) is rotated through the sprocket (45), and the chain (44) is further rotated through the sprocket (42, 43). When the chain (44) rotates, the support frame (2) meshing with the chain (44)
The gear (29) of 2) rotates, and thus the gear (28) coaxial with the gear (29) also rotates, and the rotation of the gear (28) rotates the gear (28), the gear
(27) to the barrel (14A), the barrel (14A) rotates in the direction of the arrow in FIG. 10, that is, in the direction opposite to the hinge side of the lid plate (7A), and the barrel (14A) is turned upside down. To be processed (51)
Falls from the barrel (14A) by its own weight. The lid plate (7A)
Since the locking pieces (8A, 8A) are straight plates,
Interference is small against the object (51), 該被treated (51) is engaging piece
(8A, 8A) collides with,該被treatment product (51) itself and該被treated
The disadvantage that the surface treatment film of (51) is damaged is eliminated .

The barrel (1) suspended in the access frame (40)
The operation procedure of the barrel (14A) when the object (51) is put in and out of the barrel (4A) is shown in FIG. That is, when the barrel (14A) is rotated to the state of (a), the barrel (14A) stops and the air cylinder (48) operates to unlock the lid (7A) of the barrel (14A) as described above. When the barrel (14A) is further rotated in the direction of the arrow in this state, the lid plate (7A) is opened by its own weight as shown in FIG. In the state shown in (b), the object (51) in the barrel (14A) falls automatically.

After removing the object (51) , the barrel is further removed.
Rotate (14A) in the direction of the arrow, pass through the state of C, and cover plate (7A)
Is almost vertical. In this state, the barrel (14A) is stopped and the workpiece (51) is charged. Treatment
When putting in the material (51), the locking pieces (8A, 8A) of the lid plate (7A)
Since the plate-like shape is less likely to interfere ,
Eliminates the problem of damage due to collision with the locking pieces (8A, 8A)
Is done. When the barrel (14A) further rotates slightly in the direction of the arrow from the state of (2), the lid plate (7A) falls down on the opening (6A) by its own weight, closing the opening (6A), and becomes the state of E. Then, the air cylinder (48) of the access frame (40) is operated to put the cover plate (7A) in the locked state shown in FIG. The barrel (14A) in which the cover plate (7A) is in the locked state in this way is taken out of the access frame (40) and transported to a predetermined processing tank.

As described above, when the cover plate (7A) is fully opened, the receiving piece (21) forms an angle θ with the opening (6A) as shown in FIG.
A). Therefore, in the state where the cover plate (7A) is substantially vertical, the opening (6A) is inclined by θ-90 °. Since the angle of the opening (6A) at which the object (51) is easily thrown into the barrel (14A) is inclined by 35 ° from the horizontal, it is desirable to set θ to approximately 125 °.

The barrel (14A) of such an object (51 )
As shown in FIG. 1, the detection piece (58A, 58A, 58A, 58A) can be inserted into the barrel (14A) at the bottom of the side (4A).
B, 58C), and as shown in FIG.
(0), a mount (57) on which a limit switch (57A, 57B, 57C) which contacts the detection piece (58A, 58B, 58C) and communicates with a motor (47) and a pair of air cylinders (48, 48) is mounted. ) Is slidably mounted in the direction of the arrow. In other words, the barrel (14A)
When it is mounted on and rotated, the gantry (57) moves forward and the limit switches (57A, 57B, 57C) move the detection pieces (58A, 5A) of the barrel (14A).
8B, 58C) can be brought into contact with the detection piece (58A) of the barrel (14A) and the access frame with the lid plate (7A) positioned above (FIG. 11A). When the limit switch (57A) of (40) comes into contact, the limit switch (57A) is activated, the operation of the motor (47) is stopped, and the barrel (14)
A) Suspend the rotation of a pair of air cylinders (48,48)
The air cylinder (48) presses and slides the rod (16A) of the lid lock mechanism of the barrel (14A) to slide the barrel.
The lock on the lid plate (7A) of (14A) is automatically released. barrel
(14A) starts rotating again and operates according to the state shown in FIG.
B) and the limit switch (57B) of the access frame (40) come into contact with each other, the rotation of the barrel (14A) is stopped again, and the charging machine (not shown) is activated to activate the workpiece (51) in the barrel (14A). When the barrel (14A) starts rotating again and becomes the state of E, the lid plate (7A) falls down by its own weight to close the opening (6A) and the detection piece (58C) of the barrel (14A) And the limit switch (57C) of the access frame (40) comes into contact, the rotation of the barrel (14A) stops again, and the pair of air cylinders (48, 48) is operated, and one of the air cylinders (48) is Push and slide the rod (16A) of the lid lock mechanism of (14A) to barrel (14A)
Automatically locks the lid (7A). In this way, the in / out operation procedure is automated.

[Brief description of the drawings]

 1 to 12 show an embodiment of the present invention.

FIG. 1 is a perspective view

FIG. 2 is a partial sectional view of a lid plate.

FIG. 3 is a partial plan view showing a locked state of a lid plate locking mechanism.

FIG. 4 is a partial plan view showing a released state of a lid plate locking mechanism.

FIG. 5 is a partially cutaway front view of a lid plate locking mechanism.

FIG. 6 is a front sectional view of a bracket.

FIG. 7 is a side view of the support frame mounted state.

FIG. 8 is a front view of the processing tank immersed.

FIG. 9 is a front view of a state in which the access frame is suspended.

FIG. 10 is a side view thereof.

11A, 11B, 11C, 11D, and 11E are illustrations of barrel in / out operations.

FIG. 12 is a perspective view of a barrel detection piece and a limit switch portion.

FIG. 13 is a perspective view of a conventional example.

[Explanation of symbols]

 1A Container 2A Peripheral body 6A Opening 7A Cover plate 8A Locking piece 11A, 11B Edge 13A Locking hook 14A Barrel 16A Rod 48 Air cylinder (pressing means) 51 Workpiece

Claims (2)

(57) [Claims] 1. A surface in which an opening is provided in a peripheral body of a porous container rotatably supported by a frame body, and a root edge of a lid plate that opens outward at one edge of the opening is hinged. A lid locking mechanism attached to the processing barrel, wherein the lid locking mechanism includes a locking hook provided on the other edge of the opening of the porous container, and a straight plate provided on the lid. And the locking hook is provided on a rod slidably mounted on the edge so as to be slidable left and right. Thus, the rod is provided with a pair of pressing means disposed on both sides of the barrel. A locking hook portion of the rod and a locking piece of the lid plate are engaged and disengaged by being slid left and right by the cover plate locking mechanism of the barrel for surface treatment. 2. An opening is provided in a peripheral body of a perforated container rotatably supported by a frame body, and a root edge of a lid plate that opens outward is hinged to one edge of the opening, Further, a method for moving a workpiece into and out of a surface treatment barrel to which a lid plate lock mechanism is attached, wherein the lid plate lock mechanism is provided with a locking hook provided on the other edge of the opening of the porous container. And a straight plate-shaped locking piece provided on the lid plate, and the locking hook portion is provided on a rod slidably mounted on the edge portion in a laterally slidable manner.
The locking hook and the locking piece of the lid plate are engaged and disengaged by sliding the rod left and right, and the locking mechanism of the lid plate locking mechanism is in a state where the object to be processed is contained in the barrel. The locking hook is disengaged from the locking piece by pressing and sliding the rod by pressing means on one side of the barrel, the locking mechanism is released, and the barrel is moved in the direction opposite to the hinged side of the lid plate. As the opening moves downward, the lid plate is opened by its own weight, the object to be processed is dropped and discharged from the opening by its own weight, and further, the opening is moved upward as the barrel rotates, and the object to be processed is removed. It is thrown into the barrel through the opening, the barrel is further rotated, and the cover plate is tilted down by its own weight to close the opening and the rod of the cover plate locking mechanism is pressed and slid by the pressing means on the other side of the barrel. Possibly How to Kakaritomekagi portion is engaged with the engaging piece in and out an object to be processed in the barrel, characterized in that the locked state of the lock mechanism