JPH0155167B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drum rotation device that automatically rotates a drum in an upright state.

At a drum recycling factory that recycles used and collected empty drums for reuse, the inside of the drum is cleaned or rust-proofed by detecting the filling port on the top plate, or by detecting the filling port on the outside of the drum. When painting, drums are placed in a fixed position and rotated automatically.

The present invention has a structure in which the rotational force applying means that directly presses the drum and applies rotational force to the drum can has a structure that presses only the inner circumferential edge of the ear of the drum, that is, it has a ring shape that fits and presses into the inner circumferential edge of the ear. The drum can be accurately positioned and rotated so that its axis is positioned on a predetermined reference line, and as it rotates, the outer peripheral surface of its body,
There is no possibility of peeling off the paint on the outer surfaces of the top and bottom plates, and the entire outer circumferential surface of the body can be painted without any obstructions, which are areas where paint is particularly likely to peel off. This paper proposes a drum rotation device that is convenient for painting the outer periphery of the ears.

That is, the drum rotation device of the present invention includes a drum support mechanism attached to the lower part of the frame in order to transfer the drums on the conveyor and lift the conveyor from below to above, and a drum support mechanism that presses the drums supported by this mechanism from above. and a drum rotation mechanism attached to the upper part of the frame for rotation. In the drum support mechanism, a plurality of flanged rollers are arranged radially on an elevating base plate that is raised and lowered by an air cylinder at the lower part of the frame, and are supported by a bearing stand. On the other hand, the drum rotation mechanism has a support plate rotatably mounted on a lifting platform that is raised and lowered by an air cylinder at the top of the frame, and is equipped with a motor that rotates this support plate. A mounting plate is installed via a spring, a rotating ring is horizontally fixed to the lower surface of this mounting plate via ribs, and the lower circumferential surface of the rotating ring that presses against the ear of the drum is raised from the inside to the outside. It has a sloped surface.

In the following, the invention will be explained in detail with reference to the illustrated embodiments.

The entire drum rotating device is mounted on a vertically long frame 1, and the drums D are sequentially and intermittently fed into the frame 1 in a vertically erected state by a pair of chain conveyors 2, 2.

On the lower side of the frame 1, there is a drum support mechanism 3 that rotatably supports the drum D, and on the upper side, there is a drum rotation mechanism that rotates the drum D placed on the drum support mechanism 3. 4 are installed respectively.

The drum support mechanism 3 includes an air cylinder 6 vertically attached to the bottom of the base plate 5, and a piston rod 7 of the air cylinder 6 above the base plate 5.
A plurality of flanged rollers 10 are supported by a circular elevating table plate 8 horizontally fixed to the tip (upper end) of the elevating table plate 8, and bearing stands 9 arranged radially on the elevating table plate 8. It is composed of...

The elevating platform plate 8 has a guide rod 1 vertically installed on its lower surface.
1 and 11 are the thrust bearings 1 fixed to the substrate 5.
2 and 12 so as to be vertically slidable, so that it always moves horizontally up and down without wobbling due to the operation of the air cylinder 6.

When the drums D are fed in by the chain conveyors 2, 2 as described above, the air cylinder 6 is operated to raise the elevating base plate 8, and the rollers 10... The drum D can be displaced from below to a predetermined position above it, and the drum D is placed on the rollers 10 with its lower peripheral edge and transferred to the chain conveyor 2, 2.
, and is rotatably supported by these rollers 10 .

On the other hand, the drum rotating mechanism 4 includes an air cylinder 13 vertically mounted on the frame 1, a lifting platform 15 suspended from the tip (lower end) of the piston rod 14 of the air cylinder 13, and a lower part of the lifting platform 15. It is composed of a rotating ring 17 horizontally mounted on the side by a shaft 16, and a motor 18 mounted on a lifting table 15.

The lifting table 15 is moved by the guide rollers 1 which are pivotally supported on both sides of the frame 1 by the operation of the air cylinder 13.
It is designed to move up and down in a straight line without wobbling while being guided by 9.

The rotating ring 17 is fixed to the lower side of the mounting plate 20 by a plurality of ribs 21 .

The mounting plate 20 is mounted on the lower side of the support plate 22 fixed to the lower end of the shaft 16 so as to be movable up and down by a plurality of stays 23, and also has coils wound around the stays 23. Spring 24...
is urged downward by.

Therefore, the rotary ring 17 can move slightly up and down while remaining horizontal with respect to the shaft 16, and is provided with a so-called spring cushion by the coil springs 24.

The shaft 16 is linked to the output shaft of a motor 18 via a chain 25, and when the motor 18 is driven, the rotating ring 17 is horizontally rotated.

The lower peripheral surface 17' of the rotating ring 17 is an inclined surface that slopes upward from the inside toward the outside.

When the drum D is lifted by the drum support mechanism 3 as described above, the air cylinder 13 is actuated and the lifting platform 15 is lowered, and the rotating ring 17 is attached to the inner peripheral edge of the ear D' of the drum D. Fit and pressure-weld.

As a result, the axis of the drum can D is the axis 16.
The rotation ring 17 is positioned at a predetermined position that coincides with the extension of the axis of the rotation ring 17, and is rotated together with the rotation ring 17.

Here, the rotating ring 17 is connected to the ear of the drum D.
Since it is only in pressure contact with the inner peripheral edge of D′,
When painting drum can D, even if it is not possible to apply paint only to the inner periphery of the ear D', it is possible to apply paint to all other parts, and there is no need to peel off the paint that has already been applied. do not have.

The drum D is rotated in this manner, and when the necessary processing such as painting is completed, the lifting platform 15 is raised by the operation of the air cylinder 13, the rotating ring 17 is separated from the drum D, and the air cylinder 6 is Due to the operation, the rollers 10... are lowered and the drum can D is transferred to the chain conveyor 2, 2 again.
The frame 1 is placed on top of the frame 1 and carried out to the outside of the frame 1.

As is clear from the detailed description above, the drum rotation device of the present invention has the following effects.

The drum can is lifted from the conveyor with only the peripheral edge of the bottom supported by a plurality of radially arranged flanged rollers, and only the ears are pushed from the inside of the ring by a rotating ring and rotated by the rotating ring. Because of this, the paint on the outer circumferential surface of the body of the drum, the top plate, and the outer surface of the bottom plate does not peel off as the drum rotates, and the entire outer circumferential surface of the drum can be coated without any obstructions. Therefore, it is possible to efficiently paint the outer periphery of the ear part where the paint is particularly likely to peel off with good workability.

The drum is placed on the flanged rollers arranged radially as described above, and when the rotary ring is lowered by the operation of the air cylinder at the top of the frame, the inclined outer circumferential surface of the rotary ring aligns with the annular ear of the drum. Since the drum can is fitted from the inside and pressed into contact with the spring cushion, the axis of the drum can be accurately positioned on the reference line and rotated.

The member (rotating ring) that holds and rotates the drum is ring-shaped and is fixed to the mounting plate via ribs, so the top of the drum is left open except for the inner edge of the ear. It also has good workability when painting its upper surface.

To place the drum on the flanged roller,
This allows the drum to be positioned to a certain extent, and in combination with the fact that the outer circumferential surface of the rotary ring is inclined as described above, it is possible to fit it into the ear portion accurately.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with FIG. 1 being a partially cutaway side view and FIG. 2 being a front view of the same. DESCRIPTION OF SYMBOLS 1... Frame, 2... Conveyor, 3... Drum support mechanism, 4... Drum rotation mechanism, 6...
Air cylinder, 8... Lifting table plate, 9... Bearing stand, 10... Roller with flange, 13... Air cylinder, 15... Lifting table, 17... Rotating ring, 1
7'... Lower peripheral surface, 18... Motor, 21... Rib,
22... Support plate, 23... Coil spring, D
...drum, D′...ear.

Claims (1)

[Claims] 1. To transfer the drums D on the conveyor 2 and lift them upward from below the conveyor 2, there is a drum support mechanism 3 attached to the lower part of the frame 1, and the drums D supported by this are pressed from above and rotated. A drum rotation mechanism 4 is mounted on the upper part of the frame 1, and a drum support mechanism 3 is provided.
A plurality of flanged rollers 10 are arranged radially on an elevating table plate 8 which is raised and lowered by an air cylinder 6 at the lower part of the frame 1 and are supported on a bearing stand 9. A support plate 22 is rotatably mounted on a lifting table 15 that is raised and lowered by an air cylinder 13 at the upper part of the support plate 1, and a motor 18 for rotating this support plate 22 is mounted. A mounting plate 20 is installed via a mounting plate 24, and a rotating ring 17 is fixed horizontally to the lower surface of this mounting plate 20 via a rib 21, and the lower circumferential surface of the rotating ring 17 is in pressure contact with the ear portion D' of the drum can D. A drum rotating device characterized in that 17' is an inclined surface that slopes upward from the inside to the outside.