JP3410889B2 - Automatic lid attachment / detachment / transportation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention removes a lid from a rotary drum and conveys it to a predetermined position when the powder material is charged and discharged and the rotary drum is cleaned. The present invention relates to an automatic attachment / detachment / transportation device for a lid that is attached.

[0002]

2. Description of the Related Art Conventionally, for example, in inserting a powder material into a rotary drum for mixing a plurality of types of powder materials, a work of removing a lid body which closes an input / discharge port of the rotary drum. To date, most have relied on manpower. However, when the powder material is metal powder or chemicals that are harmful to the human body, if the powder material is manually put in as described above, the powder material will be scattered and the operator will not be able to improve hygiene and safety. There was a problem that it had a serious adverse effect.

For this reason, recently, for example, a powder material feeding facility as shown in FIG. 39 has been developed. As shown in FIG. 39, the charging equipment is, for example, a rotary drum 2
To convey in an upright state, mixing is carried out in the rotary drum 2 arranged above the first to third conveyors 1a to 1c arranged in a U shape when viewed from the plane and the second conveyor 1b. A plurality of charging devices 3a for individually charging a plurality of powder materials to be performed and by a preset amount
3c, and a detaching device 4 for removing the lid 5 capped on the rotary drum 2 and attaching the lid 5 thereto.

Then, when the powder material is charged by the powder material charging equipment configured as described above, first, the rotary drum 2 is conveyed to the position of the attaching / detaching device 4 of the lid 5 by the first conveyor 1a. Then, the lid 5 capped on the rotary drum 2 is removed by the attaching / detaching device 4. Subsequently, the rotary drum 2 from which the lid 5 has been removed is conveyed by the second conveyor 1b to the powder material charging devices 3a to 3c, and the rotary drums are moved at the positions of the charging devices 3a to 3c.
While stopped, a plurality of powder materials to be sequentially mixed are charged into the rotary drum 2. After the powder material has been charged, the rotary drum 2 is conveyed back to the position of the attaching / detaching device 4 by the first and second conveyors 1a and 1b, and the lid 6 is attached (capped) again. Then, the rotary drum 2 is first
~ By feeding the powder material to the mixing process by the third conveyors 1a to 1c, the powder material feeding operation is performed unattended.

[0005]

However, when the powder material is charged as described above, the rotary drum 2 is closed by the attaching / detaching device 4 in order to charge the powder material to be mixed therein. Inserting device 3 after removing 5
a to 3c, the powder material is charged therein, and thereafter, the powder material is fed back to the place of the attachment / detachment device 4 again, and the lid 5 is capped. Device 3a-
Since the powder material was conveyed to the mixing process through the bottom, the rotary drum 2 was moved many times between the attaching / detaching device 4 and the charging devices 3a to 3c. It took very poor workability. In addition, the first and second conveyors 1a and 1b must be reciprocally movable, which increases the manufacturing cost of the conveyor and complicates the drive control thereof.

Further, as described above, the rotary drum 2 is fed back to the position of the attaching / detaching device 4 of the lid 5 again on the conveyors 1a and 1b after the feeding operation of the powder material is completed, and the lid 5 is capped. After that, since the conveyors 1a to 1c convey the mixture to the mixing step again, if one rotary drum 2 is placed on the side of the charging devices 3a to 3c, the subsequent rotary drum 2 must stand by before the attachment / detachment device 4. Therefore, when the powder material is charged into the plurality of rotary drums 2, there is a problem that the flow of the rotary drums 2 is delayed and the charging work becomes inefficient.

In view of the above-mentioned various problems, the present invention limits the conveying direction of the rotary drum to a fixed direction so that a plurality of kinds of powder materials can be efficiently put into the plurality of rotary drums. It is an object of the present invention to provide an automatic attachment / detachment / transportation device.

[0008]

The invention according to claim 1 is
Roller container arranged in a U shape to convey the rotating drum
And the input / output ports of the rotary drum can be opened and closed freely
A cylindrical lid with a bottom and a predetermined gap on the bottom of the lid.
A pair of hooks that are kept protruding and parallel to the conveyor.
A horizontally long support stand erected across the opposite conveyors
And on a rail laid along the longitudinal direction of the support frame
The movable carriage that is movably arranged in the
Insert the rotary drum by hanging it at a predetermined position in the direction
・ A lid mounting table for temporarily placing the lid removed from the outlet
The moving carriage is moved forward and backward and rotated by a predetermined angle.
A cylinder device having a screw shaft, and the cylinder device.
Connecting shaft that can be linked to the screw shaft of the
Bottomed attached to the tip of the connecting shaft with the open end facing down
The tubular hooking metal and the hooking metal
It is provided on the bottom surface of the lid body so as to project in the opposite direction.
A lid composed of a pair of hooking pieces that are detachably engaged with a hooking tool.
The device for attaching / detaching the body, the hook metal fitting is located above the bottom surface of the lid.
Mounted and fixed in the state of
The lid removed from the mouth with the attaching and detaching device,
While holding it, transfer it to the lid mounting table by the moving carriage and
When holding the detachable device on the lid mounting table and placing it
Both have been placed on the lid mounting table after a predetermined time has elapsed.
Hold the lid with a detachable device and attach the lid with a moving carriage.
It is characterized in that it is conveyed to the closing position and attached to the inlet / outlet of the rotary drum .

The invention according to claim 2 is the lid according to claim 1.
Automatic body attaching / detaching / conveying device, the lid attaching / detaching device
The movable carriage on which the vehicle is mounted and fixed is
Characteristically, they are arranged so that they can move relative to each other on the rails laid along the direction so that they are opposite to each other, and these moving carts are moved alternately to remove the lid, and carry and attach at the same time. And

[0010]

The present invention, as described above, has the advantage that the length of the horizontally long support frame is long.
It is movably placed on a rail laid along the hand direction.
Since the device for attaching / detaching the lid is mounted / fixed on the moving carriage,
It was removed from the rotating drum with the attaching / detaching device before the powder material was added.
The lid body is held by the attachment / detachment device by a moving carriage.
The lid mounting table is conveyed to the lid mounting table and is attached to the lid mounting table by an attaching / detaching device.
Hold for a while and then temporarily place it
After that, the lid mounted on the lid mounting table is attached / detached by the attaching / detaching device.
Hold it and transport it to the lid mounting position by the moving carriage,
It is possible to install it on the rotary drum after the powder material has been charged, and as a result, it is not necessary to reversely feed the rotary drum after the powder material has been charged to the position of the lid attachment / detachment device. Since it is possible to carry out the work of charging the powder material by conveying the drum in only one direction, it is possible to improve the workability at each stage.

The lid attaching / detaching device is mounted / fixed.
The movable carriage is laid along the longitudinal direction of the horizontally long support frame.
Placed so that they can move relative to each other on opposite rails
However , by alternately moving these moving carriages, the work of removing, carrying and mounting the lids can be carried out simultaneously, so that the lids of the plurality of rotary drums can be quickly attached and detached.
It is possible to smoothly carry out the feeding of the rotary drum to the charging device side, and as a result, it is possible to reliably prevent the flow of the rotary drum from being delayed when the powder material is charged into the plurality of rotary drums.

[0012]

Embodiments of the present invention will be described below with reference to FIGS.
Will be described. The difference between the present invention and the prior art is
The detachable device for the lid is attached to a moving carriage that is electrically driven to make it movable. First, FIG. 1 is a plan view showing an embodiment of a powder material charging facility equipped with an automatic lid attachment / detachment / transportation device A according to the present invention. In FIG. 1, 11 a to 11 c transport a rotary drum 12. The first to third roller conveyors electrically driven for the purpose of arranging the first roller conveyor 11a and the third roller conveyor 11c in parallel, and the first roller conveyor 11a and the third roller conveyor 11c. By connecting the second roller conveyors 11b so as to bridge, the entire shape is arranged in a U shape when viewed from a plane.

Further, the second roller conveyor 11b
The first roller conveyor 11a and the second roller conveyor 11b are connected to the first roller conveyor 11a and the third roller conveyor 11c, respectively.
Or from the second roller conveyor 11b to the third
The first roller conveyor 11a and the third roller conveyor 11c for replacing the rotary drum 12 on the roller conveyor 11c.
Chain conveyors 11b ₁ and 11b ₂ electrically driven in the same direction as the roller conveyor 11c are installed.
Note that 11d is a stopper for stopping the rotary drum 12 at the position of the charging device described later.

13a to 13c are arranged above the second roller conveyor 11b, and are used to individually feed a plurality of kinds of powder materials to be mixed into the rotary drum 12 conveyed by the second roller conveyor 11b. A plurality of (three in the present invention) charging devices are configured to charge a quantity of powder material preset by a control command from a controller (not shown) to the rotary drum 12 individually and quantitatively. Has been done.

Next, referring to FIG. 2, automatic attachment / detachment of the lid body
The transport device A will be described. The automatic attachment / detachment / conveyance device A is roughly classified, and moves on the support frame 14 and a support frame 14 standing upright across the first and third roller conveyors 11a and 11c for conveying the rotary drum 12. The first and second moving carriages 15A and 15B and the rotary drum 12 mounted on the first moving carriage 15A to the lid 17
The first lid attaching / detaching device 16a for removing the lid and the lid 1 on the rotary drum 12 mounted on the second moving carriage 15B.
And a second lid attaching / detaching device 16b for attaching 7.

Next, referring to FIGS.
The structure of will be described. The support frame 14 is shown in FIGS.
3, an upper frame body 14a formed horizontally by framed with angle steel or the like, and the upper frame body 14
It is composed of a plurality of support legs 14b vertically attached to the lower part of a (see FIG. 2) and a mounting frame body 14c hung down at a substantially intermediate position in the longitudinal direction of the upper frame body 14a. As shown in FIG. 3, the body 14a has two rails 18, 18 arranged at a predetermined width along the longitudinal direction thereof.
Has been laid.

Incidentally, S _{1 to} S ₄ shown in FIG. 3 are attached to predetermined positions of the upper frame 14a, and the detection pieces K ₁ attached to the first and second moving carriages 15A and 15B (see FIG. 6). Detection) to detect the origin position of each of the first and second movable carriages 15A and 15B (removal position and attachment position of the lid 17) and the stop position when the lid is moved to a lid mounting table described later. It is a sensor including a proximity sensor and the like.

Next, 19 is a lid mounting table, and as shown in FIGS. 4 and 5, a mounting stage 19a is mounted on a mounting frame body 14c suspended from an upper frame body 14a of the support frame 14 and stud bolts 19b and the like are mounted thereon. It is constructed by being mounted so that the height thereof can be adjusted. Further, on the lid mounting table 19, a sensor S _{5 including} a proximity sensor for detecting the presence or absence of the lid 17 is projected upward from an opening 19c formed in the center of the mounting stage 19a. It is prepared in a ready state.

Continuing on, referring to FIGS.
The structure of the moving carriages 15A and 15B will be described. The first and second movable carriages 15A and 15B are, as shown in FIGS. 6 to 8, a chassis 1 in which angle steel or the like is framed in a rectangular shape.
5a and the undercarriage 1 through the bearing 15b on the undercarriage 15a
The drive axle 15c and the driven axle 15d rotatably inserted in the direction orthogonal to 5a, and the axles 15c, 1
Wheels 15e fixed to both ends of 5d and engaged with rails 18 laid on the upper frame 14a of the support frame 14.
And the chassis 1 on the rear side (right side in FIG. 6) of the chassis 15a.
It is attached to a mounting frame 15f formed integrally with 5a,
It is composed of a sprocket 15g fixed to the drive axle 15c (see FIG. 8) and a drive motor 15i drivably connected via a chain 15h. 20 is a chassis 15a of the first and second moving carriages 15A and 15B.
It is a base fixed on the top with bolts.

Next, the structure of the first and second attaching / detaching devices 16a and 16b mounted on the first and second moving carriages 15A and 15B will be described with reference to FIGS. . In FIGS. 6, 7 and 9, reference numeral 21 denotes the attaching / detaching device 16
a, 16b, which is a rotary drive unit, is fixed to the base 20, a motor mount 22 is mounted on the base 22, a motor 23 is mounted on the mount 22, and a sprocket 25 that is drivably connected to the motor 23 via a chain 24; The sprocket 25 comprises a turntable 27 composed of a disk 26 fastened by bolts 25a (see FIG. 10), and a bearing device 28 for rotatably mounting the turntable 27 on the base 20. As shown in FIG. 10, the turntable 27 is a bearing cylinder 28a of a bearing device 28 in which a cylindrical cylindrical body 27a integrally attached to the sprocket 25 and the disk 26 by welding or the like is fixed to the base 20 by welding or the like. It is rotatably attached to the base 20 by being inserted into the bearing via a bearing 28b.

Denoted at 29 is an attachment / detachment mechanism portion of the attachment / detachment devices 16a and 16b. The connecting shaft 32 is attached, and the connecting shaft 34 is connected to the screw shaft 33 of the cylinder device 30 and the connecting shaft 32 in an interlocking manner. As shown in FIGS. 11 and 12, the connecting shaft 32 has a tapered convex portion 32b which penetrates the bottom surface of the hook 31 and projects inward, and has a shaft portion on the proximal side thereof. A lateral hole 32a is formed along the direction.

As shown in FIG. 11, the connecting shaft 32 is a hollow connecting cylinder fixed to the tip of the screw shaft 33 with a compression spring 35 interposed between the connecting shaft 32 and the hook 31. 34 into the connecting cylinder 34 and the connecting cylinder 34
The connecting shaft 32 is attached to the connecting cylinder 34 so as to be movable within the range of the horizontal hole 32a by penetrating the bolt 36 fitted orthogonally to the inside of the horizontal hole 32a. 11,
Reference numeral 37 shown in FIG. 12 is a pair of hooking pieces horizontally projecting from the opening end edge of the hooking metal fitting 31 in opposite directions.
A cushion member 37a made of rubber or the like is attached to the upper portion thereof.

In FIGS. 7 and 9, S ₆ is the base 20.
Is a sensor including a proximity sensor or the like for detecting the origin position of the turntable 27 fixed to the mounting seat 20a installed in the turntable 27, and the detection piece K fixed to the turntable 27.
By searching for ₂ , it is detected whether the turntable 27 is at the origin position. Reference numeral 38 is a protective cover of the rotary drive unit 21. Further, as shown in FIGS. 12 and 13, in the connecting cylinder 34, a sensor S _{7 including an} ultrasonic sensor or the like for searching the position of a hooking tool protruding from the lid 17 described later is provided in the sensor. The sound wave emitted from S ₇ is shielded by the hooking device, and the bottom surface of the lid 17 is not irradiated with the height range, and the hooking piece 37 of the hooking metal fitting 31 is kept at an angle of 90 °. It is attached to the open position via the attachment seat 34a.

In the cylinder device 30, as shown in FIG. 19, for example, two elliptical pistons 30a and 30b for rectilinear movement and rotation are incorporated in one cylinder 30c, and the rectilinear piston 30a is screwed. The screw shaft 33 is fixed only in the axial direction with respect to the shaft 33, and the screw shaft 33 is moved straight by the thrust applied to the straight-moving piston 30a. Further, the rotating piston 30b has a female screw 30d with a large lead provided in the shaft center thereof. Since it is screwed with the male screw 30e screwed on the screw 33, the thrust applied to the rotating piston 30b is torque-converted to rotate the screw shaft 33 by a predetermined angle (90 ° in this embodiment). The screw shaft 33 is the cylinder 30 shown in FIG.
By selecting the order of the pressure input to the ports X, Y, Z provided in c and the exhaust, the vehicle goes straight or rotates.

In FIGS. 9 and 19, K ₃ is an elliptical detection piece fixed to the rear end of the screw shaft 33 protruding from the cylinder 30c, and S _{8 to} S ₁₁ are the rear end of the cylinder device 30. and secured to the mounting seat 30f erected on, the operation of the cylinder device 30 (forward, forward, backward, reverse) respectively a sensor comprising a proximity sensor for detecting the length of the detection piece K ₃ The tip end on the side is the sensor S
The operation of the cylinder device 30 is drive-controlled by the detection of _{8 to} S ₁₁ .

Next, referring to FIGS. 2 and 14 to 17,
The structures of the rotary drum 12 and the lid 17 will be described.
As shown in FIG. 2, the rotary drum 12 is formed in a bottomed cylindrical shape with one side being a truncated cone shape.
As shown in FIG. 14, the discharge port 39 is formed by fixing a cylindrical tubular body 39a to the frustoconical end by welding or the like. Further, the cylindrical body 39a is shown in FIG.
As shown by 4 to 16, it is formed in a taper shape toward the tip end thereof, and a locking groove 39b is formed along the entire circumference in the circumferential direction at the center in the lengthwise direction, and a thin plate-like shape at the base end side. The projecting walls 40 are provided around each. Further, as shown in FIGS. 14 to 16, at a predetermined position on the outer peripheral surface of the cylindrical body 39a, a locking pin for preventing the lid body 17 from coming off from the cylindrical body 39a when mixing powder materials. 39 c is provided so as to be engageable with an engagement groove of the lid body 17 which will be described later.

The lid 17 for opening and closing the inlet / outlet 39 of the rotary drum 12 is, as shown in FIGS. 16 and 17, formed by forming a metal plate into a bottomed cylinder, and the cylinder on the side surface thereof. Locking groove 39b provided around the body 39a (see FIGS. 14 and 15)
As shown in FIG. 17, the compression spring 41
A plurality of insertion cylinders 42 for inserting and screwing a cylinder 41 accommodating an engagement pin 41a that can be retracted by the force of b are provided, and a locking pin 39c protruding from the cylinder body 39a
At a position corresponding to (see FIGS. 14 and 15), an L-shaped engagement groove 43 including a horizontal groove 43a with which the locking pin 39c engages and a vertical groove 43b is formed. .

Further, as shown in FIG. 16, the lid 17
A fitting cylinder 44 is fixed to the center portion of the bottom surface of the fitting cylinder 44 by welding or the like, and a T-shaped receiving seat 46 in which a long hole 45 is bored in the axial direction is provided in the fitting cylinder 44 at the tip portion of the fitting cylinder 44. A bolt 47 fitted orthogonally to the fitting cylinder 44 is passed through the elongated hole 45, and the seat 46 and the lid 17 in the fitting cylinder 44 are inserted.
The receiving seat 46 is fitted in the fitting cylinder 44 so as to be movable in the range of the elongated hole 45 by the urging force of the compression spring 48 with the compression spring 48 interposed therebetween. Reference numeral 49 is a tapered concave portion that is formed in the head portion of the receiving seat 46 and into which a tapered convex portion 32b formed at the tip of the connecting shaft 32 is fitted.

Reference numeral 50 shown in FIG. 16 is a pair of hook-shaped hooks projecting from the bottom surface of the lid 17 so as to be opposed to each other with a predetermined space therebetween. , The plate-shaped stoppers 50a are fixed in a misplaced state by welding or the like, and a pair of hooking pieces of hooking metal fittings 31 attached to the tip end of the connecting shaft 32 that interlocks with the screw shaft 33 of the cylinder device 30. 37 is formed so that it can be engaged only from a fixed direction (counterclockwise direction in FIG. 18).

Next, the operation of the device of the present invention will be described with reference to FIGS. 1, 2 and 18 to 38. First,
As shown in 2, the rotary drum 1 before charging the powder material
2 from the previous step (washing step, etc.) to the first conveyor 11a
Is conveyed to the first attachment / detachment device 16a. At this time, the hook 50 of the lid 17 capped on the inlet / outlet 39 of the rotary drum 12 has the stop position of the rotary motion of the rotary drum 12 in the preceding step, particularly the mixing step, which is set by a timer operation or the like. The direction is constant with respect to the hooking piece 37 of the hooking metal fitting 31 of the first attaching / detaching device 16a by not removing the lid 17 manually to check the powder material mixing condition. No, so first
The rotation drive unit 21 of the attachment / detachment device 16a is driven to search the position of the hook 50 of the lid 17.

The position of the hook 50 of the lid 17 is searched for by
For example, a cylinder device 30 placed on the turntable 27 shown in FIG. 7 is driven by a motor 23 driveably connected to the turntable 27 shown in FIG. 7 by a program preset in a control device (not shown). The cylinder device 3 is rotated in the clockwise direction.
The sensor S ₇ arranged in the connecting cylinder 34 attached to the tip of the screw shaft 33 of No. 0 is rotated to follow the screw shaft 33, and the lid of the rotary drum 12 conveyed to the position of the first attaching / detaching device 16a. The position of the hooking device 50 of 17 is searched, and the sensor S ₇ detects the hooking device 50 once or twice (once when the hooking device 50 is not detected for the first time, once when the hooking device 50 is detected). If it is detected twice), after a predetermined time has elapsed from the time of detection, the sensor S ₇ is positioned at the center of the hook 50 as shown in FIGS. Stop driving. As a result, it is possible to easily detect the position of the hook 50 regardless of the direction of the hook 50, and to reliably stop the sensor S ₇ at the central position of the hook 50.

When the position search of the latch 50 is completed as described above, the cylinder device 30 is driven to continuously rotate the rotary drum 12 as shown in FIGS.
Remove the lid 17 from. When removing the lid 17 from the rotary drum 12, first, the cylinder device 30 is driven to move the screw shaft 33 forward (downward) in FIG. 19, and the connecting shaft 32 that interlocks with the screw shaft 33 is pushed to the lid 17 side. Then, as shown in FIG. 20, the projection 32 b at the tip of the connecting shaft 32 is fitted into the recess 49 of the seat 46. At this time, the stroke of the screw shaft 33 is such that the convex portion 32b at the tip of the connecting shaft 32 fits into the concave portion 49 of the receiving seat 46, and then the receiving seat 46 can be slightly pressed, that is, the bolt 36 is in the lateral hole 32a. Set so that you can move to almost the center. Therefore, the connecting shaft 3
2 is pressed and held by the force of the compression spring 35 to the receiving seat 46 via the hooking metal fitting 31 while the receiving seat 46 is slightly retracted against the compression spring 48.

Further, when the cylinder device 30 is driven, the hooking piece 37 of the hooking metal member 31 is positioned at an angle of 90 ° with the hooking tool 50 of the lid 17, as shown in FIGS. Therefore, when the connecting shaft 32 is joined to the receiving seat 46, the hooking piece 37 never collides with the hooking tool 50 as shown in FIG. Next, when the sensor S ₈ detects the detection piece K ₃ fixed to the rear end portion of the screw shaft 33 by the forward movement (lowering) operation of the screw shaft 33, the screw shaft 33 is moved. A counterclockwise rotation from the state shown in FIG. 18 causes the hook 31 attached to the connecting shaft 32 interlocking with the screw shaft 33 to rotate in the same direction (counterclockwise), and the solid line in FIGS. As shown by, the hooking piece 37 of the hooking metal 31 is provided on the opening side of the hooking tool 50 of the lid 17 (the side without the stopper 50a).
To engage through the cushion member 37a.

At this time, the charging / discharging port 3 of the rotary drum 12
As shown in FIG. 22, the locking pin 39c provided on the tubular body 39a constituting the screw 9 is engaged with the horizontal groove 43a of the engaging groove 43 provided on the lid 17, so that the screw shaft When the sensor S ₉ detects the detection piece K ₃ fixed to the rear end portion of the screw shaft 33 by the rotation (normal rotation) operation of 33, as shown in FIG. In the state where the hooking piece 37 of the hooking metal 31 is brought into contact with the stopper 50a of the hooking tool 50, the cylinder device 30
In FIG. 7, the motor 23 that is drivably connected to the turntable 27 on which is mounted is driven to activate the turntable 27 for a predetermined time (a time preset in a control device (not shown) is measured by a timer of the control device). It is rotated counterclockwise to rotate the lid body 17 from the position shown by the solid line in FIG. 23 to the position shown by the two-dot chain line in FIG.

When the lid 17 is rotated, the lid 17 is rotated.
24, the locking pin 39c of the rotary drum 12 engaged with the horizontal groove 43a of the engaging groove 43 of FIG. Position where the groove 43a and the vertical groove 43b intersect). After that, the cylinder device 30 is driven to retract (raise) the screw shaft 33, and the hook metal fitting 31 attached to the connecting shaft 32 interlocking with the screw shaft 33.
Moves upward while the hooking piece 50 of the lid 17 is hooked to the hooking piece 37 via the cushion member 37a, and as shown in FIGS. 26 and 27, the lid 17 is rotated. 12, and the charging / discharging port 39 of the rotary drum 12 is opened as shown in FIGS.

At this time, as shown in FIG. 26, the receiving seat 46 fitted to the fitting cylinder 44 provided on the upper portion of the lid 17 is hooked by the force of the compression spring 48 inserted in the fitting cylinder 44. Since the hooking piece 37 of the hooking metal fitting 31 is pressed to the 31 side, the hooking piece 50 of the lid 17 is securely hooked with the hooking piece 37 of the hooking metal fitting 31 with the cushion member 37a interposed therebetween. The lid 17 can be removed. Further, when the engaging pin 41a engaging with the lid 17 and the tubular body 39a of the rotary drum 12 is disengaged from the locking groove 39b and comes into contact with the side wall of the tubular body 39a, the engaging pin 41a is provided on the side surface of the lid 17. The cylinder 41 inserted and screwed into the insertion cylinder 42 is retracted against the force of the compression spring 41b shown in FIG. 17, so that removal of the lid 17 is not affected and the lid 17 can be easily removed. Can be removed. Further, as shown in FIG. 24, the locking pin 39c of the rotary drum 12 is provided with the engaging groove 43 of the lid 17.
Since it is located at the bent portion of the above, by inserting the locking pin 39c into the groove 43b in the vertical direction of the engaging groove 43,
The lid 17 can be easily removed from the rotary drum 12.

When the sensor S ₁₀ detects the detection piece K ₃ fixed to the rear end of the screw shaft 33 as shown in FIG. 26 by the backward (upward) movement of the screw shaft 33, as shown in FIG. 27. The hook metal 3 of the first attaching / detaching device 16a
With the lid 17 hooked on the first moving carriage 15A
The drive motor 15i of the above is activated to move the movable carriage 15A along the rails 18, and the lid 17 is supported by the support base 1
4 is conveyed to the position of the lid mounting table 19 provided at the intermediate position in the longitudinal direction of 4. The sensor S ₂ shown in FIG. 3 indicates that the first moving carriage 15A has arrived at the position of the lid mounting base 19.
If is detected, the drive motor 15i of the first moving carriage 15A is stopped and the first moving carriage 15A is stopped at the position of the lid mounting base 19 as shown in FIG. When the first moving carriage 15A arrives at the position of the lid mounting base 19, the cylinder device 30 is then continuously moved as shown in FIGS.
Is driven to place the lid body 17 hooked on the hooking metal fitting 31 of the first attaching / detaching device 16a on the lid placing table 19.

When the lid 17 is placed on the lid mounting table 19, the cylinder device 30 is driven to drive the screw shaft 33.
29 is advanced (lowered) in FIG. 29, and the lid 17 and the lid mounting table 19 are brought into contact with each other as shown in FIG. When the sensor S ₉ detects the detection piece K ₃ fixed to the rear end portion of the screw shaft 33 as a result of the forward movement (lowering) of the screw shaft 33 as shown in FIG. 18 is rotated (reversed) to release the engagement between the hooking tool 50 of the lid 17 and the hooking piece 37 of the hooking metal 31, as shown in FIGS. At this time, the lid body 17 is formed as shown in FIG.
As shown in, the connecting shaft 32 that interlocks with the screw shaft 33
Since the elastic force of the compression spring 35 interposed between the catch metal fitting 31 and the catch metal fitting 31 and the compression spring 48 interposed between the receiving seat 46 and the bottom surface of the lid 17, the lid mounting table 19 is pressed. The lid 17 does not rotate together with the hook metal 31 due to the rotation of the screw shaft 33, so that the lid 17 can be smoothly and satisfactorily.
It is possible to release the engagement between the hooking stop 40 and the hooking piece 37 of the hooking metal 31.

When the sensor S ₈ detects the detection piece K ₃ fixed to the rear end portion of the screw shaft 33 by the rotation (reverse rotation) operation of the screw shaft 33, as shown in FIG.
As indicated by reference numerals 2 and 33, the cylinder device 30 is driven to retract (raise) the screw shaft 33, and the transfer / placement work of the lid body 17 on the lid placement table 19 is completed. Thereafter, as shown in FIG. 32, when the sensor S ₁₁ detects the detection piece K ₃ fixed to the rear end portion of the screw shaft 33 by the backward (upward) movement of the screw shaft 33, as shown in FIG. At the position of the lid mounting table 19, the first moving carriage 15A
The drive motor 15i is activated to move the moving carriage 15A to the origin position (the position where the lid 17 is removed from the support frame 14: the left side in FIG. 33). When the sensor S ₁ shown in FIG. 3 detects that the first moving carriage 15A has arrived at the origin position (the position where the lid 17 is removed), the driving motor 15i of the moving carriage 15A is stopped to start the first movement. The moving carriage 15A is stopped at the origin position as shown in FIG. Further, the turntable 27 of the first attaching / detaching device 16a is rotated counterclockwise in FIG. 7 by the motor 23, and the sensor S ₆ detects the detection piece K ₂ fixed to the turntable 27 as shown in FIG. Then, the motor 23
Is stopped and the turntable 27 is returned to the original position to prepare for the next removal of the lid 17 of the rotary drum 12.

Subsequently, the sensor S ₅ provided on the lid placing table 19 shown in FIGS. 3 to ₅ detects that the lid body 17 is placed on the lid placing table 19, and is shown in FIG. Sensor S
_{When 1} detects that the first moving carriage 15A is stopped at the origin position (the position where the lid 17 is removed), as shown in FIG. 34, the driving motor 15 of the second moving carriage 15B is driven.
i is activated to move the second moving carriage 15B to the position of the lid mounting base 19. When the sensor S ₄ shown in FIG. 3 detects that the second mobile carriage 15B has arrived at the position of the lid mounting base 19, the drive motor 1 for the second mobile carriage 15B is detected.
5i is stopped, and the second moving carriage 15B is stopped at the position of the lid mounting base 19 as shown in FIG.

When the second moving carriage 15B arrives at the position of the lid mounting base 19, as shown in FIG. 18, it is mounted on the second moving carriage 15B in the same manner as when the lid 17 is removed. the sensor S ₇ consisting of ultrasound sensors, etc. 2 detachable device 16b, to search for hooking member 50 of the cover 17.
As shown in FIG. 32, when the search for the hook 50 is completed,
The cylinder device 30 is driven to move the screw shaft 33 forward (lower), and as shown in FIG.
The convex portion 32b provided on the connecting shaft 32 is engaged with the concave portion 49 provided on the lid 6, and the lid body 17 is pressed toward the lid mounting table 19 side. Subsequently, the cylinder device 30 is driven to drive the screw shaft 3
3 is rotated counterclockwise from the state shown in FIGS. 18 and 31 (normal rotation), and the hook metal fitting 31 attached to the connecting shaft 32 interlocking with the screw shaft 33 is rotated in the same direction (counterclockwise). As shown in FIGS. 23 (solid line portion) and 30, the hooking piece 37 of the hooking metal 31 and the hooking tool 50 of the lid 17 are engaged with each other.

At this time, as shown in FIG. 31, the lid 17 has a compression spring 35 and a receiving seat 46 which are inserted between the connecting shaft 32 interlocking with the screw shaft 33 and the hook 31 and the lid 17. Since the elastic force of the compression spring 48 interposed between the lid 17 and the bottom of the lid pushes it toward the lid mounting table 19 side, the lid 17 never rotates together with the hook metal 17 due to the rotation of the screw shaft 33. Therefore, the hook 50 of the lid 17 and the hooking piece 37 of the hooking metal 31 can be engaged smoothly and satisfactorily.

After this, as shown in FIGS. 29 and 36, the cylinder device 30 is driven to retract (raise) the screw shaft 33, and the hook metal fitting attached to the tip of the connecting shaft 32 interlocking with the screw shaft 33. The lid 17 hooked on 31 is taken out from the lid mounting table 19. Subsequently, as shown in FIG. 36, when the lid 17 is taken out from the lid mounting base 19 by being hooked on the hooking metal fitting 31, the drive motor 15i of the second moving carriage 15B is activated to move the moving body. The trolley 15B is at the origin position (the mounting position of the lid 17 on the support frame 14:
36) to the right). Second moving carriage 15B
When the sensor S ₃ shown in FIG. 3 detects that the vehicle has arrived at the origin position (attachment position of the lid 17), the drive motor 15i of the second moving carriage 15B is stopped and the second moving carriage 15B is stopped. As shown in FIG. 37, stop at the origin position.

While the lid 17 is being conveyed as described above, the rotary drum 12 from which the lid 17 is removed from the charging / discharging port 19 is electrically driven by the first roller conveyor 11a which is electrically driven. It is conveyed to a connection point with the driven second roller conveyor 11b. At this time, since the first roller conveyor 11a and the second roller conveyor 11b are connected at a right angle as shown in FIG. 1, the first roller conveyor provided on the second roller conveyor 11b is the first roller. The rotary drum 12 is driven by a chain conveyor 11b ₁ that is electrically driven in the same direction as the conveyor 11a.
As shown in FIG. 1, the first roller conveyor 11a, which is electrically driven, is transferred from the first roller conveyor 11a side to the second roller conveyor 11b side, and then the second roller conveyor 1 is moved.
1b conveys to a plurality of charging devices 13a to 13c for charging a plurality of powder materials.

As shown in FIG. 1, the rotary drum 12 conveyed to the positions of the charging devices 13a to 13c is provided at a position corresponding to each of the charging devices 13a to 13c of the electrically driven second roller conveyor 11b. Stopper 11
A plurality of powder materials of different kinds are received from the charging / discharging port 39 which is received by d and is opened while sequentially stopping at the positions of the charging devices 13a to 13c.
A preset amount is input by a control command from a control device (not shown). After the powder material is charged, the rotary drum 12 is electrically driven by a second roller conveyor 11b, and as shown in FIG. 1, an electrically driven third roller conveyor is connected at a right angle to the second roller conveyor 11b. The second roller conveyor 1 is conveyed to a connection point with 11c and is provided on the second roller conveyor 11b by a chain conveyor 11b ₂ electrically driven in the same direction as the third roller conveyor 11c.
1b side is transferred to the third roller conveyor 11c side, and the lid 1 is moved by the third roller conveyor 11c.
7 is transported to the mounting position.

Further, as shown in FIG. 37, the lid body 17 taken out from the lid mount 19 by the second attaching / detaching device 16b is
The rotary drum 12 with the lid 17 capped at the detaching position of the lid 17 while being conveyed to the attachment position of the lid 19.
When the sheet is conveyed, the lid 17 is removed from the rotary drum 12 by the first attaching / detaching device 16a, and the lid 17 is conveyed again to the position of the lid mounting table 19. On the contrary, when the lid 17 is being conveyed to the position of the lid mounting table 19 by the first attaching / detaching device 16a, the rotary drum 12 after the feeding of the powder material has been conveyed to the attachment position of the lid 17. If the second
The lid body 17 conveyed from the lid mounting table 19 is attached to the rotary drum 12 by the attaching / detaching device 16b.

Next, as shown in FIG. 37, the lid body 17 conveyed from the lid mounting table 19 by the second moving carriage 15B is
The third roller conveyor 11c after the powder material has been charged.
When the rotary drum 12 conveyed to the attachment position of the lid 17 is attached to the inlet / outlet port 39 by the cylinder device 30 in FIG. 26, the screw shaft 33 is moved forward (downward), as shown in FIG. In addition, the lid 17 that is hooked on the hooking piece 37 of the hooking metal fitting 31 attached to the tip of the connecting shaft 32 that interlocks with the screw shaft 33 is attached to the rotary drum 12.
Is capped at the input / output port 39 of. When the lid body 17 is capped, it is inserted into the insertion tube 42 provided on the side wall of the lid body 17.
As shown in FIG. 17, an engaging pin 41a protruding and retracting from the screwed cylinder 41 engages with a locking groove 39b provided around the outer periphery of a cylindrical body 39a forming an inlet / outlet port 39, as shown in FIG. Then, the lid body 17 is fixed to the cylindrical body 39a. Also, a locking pin 39c provided on the cylindrical body 39a
Is engaged with a vertical groove 43b of the engaging groove 43 provided on the lid 17.

Subsequently, the cylinder device 30 is driven to rotate (reverse) the screw shaft 33, and as shown in FIGS. 18 and 20, the connecting shaft 32 interlocking with the screw shaft 33.
The hook piece 37 of the hook metal fitting 31 attached to the tip of the
The latching with the latching tool 50 provided on the upper part of 7 is released. After that, the motor 23 of the second attachment / detachment device 16b is activated to rotate the turntable 27 clockwise in FIG.
As shown by a solid line in FIG. 25, the hooking piece 37 of the hooking metal fitting 31 is brought into contact with a stopper 50a provided on one side surface of the hooking tool 50 of the lid body 17, and in this state, the turntable 2
By further rotating 7 in the clockwise direction and rotating the lid body 17 in the clockwise direction as shown by the chain double-dashed line in FIG. 25, the locking provided on the cylindrical body 39a as shown in FIG. The pin 39c is engaged with the horizontal groove 43a of the engaging groove 43 provided on the lid 17.

Thereafter, as shown in FIGS. 19 and 38, the cylinder device 30 is driven to retract (raise) the screw shaft 33, and a hooking metal fitting attached to the tip of the connecting shaft 32 interlocking with the screw shaft 33. 31 is moved away from the lid body 17, and as shown in FIG.
By starting the motor 23 of b and returning the turntable 27 to the original position, the work of attaching the lid 17 is completed.

When the work of attaching the lid 17 is completed as described above, the rotary drum 12 is moved to the third roller conveyor 11
It is conveyed to a mixing process not shown by c. After that, when the powder material is charged into the rotary drum 12, the above operation may be repeated.

In the present invention, the cylindrical body 39a constituting the engaging groove 43 provided in the lid 17 and the charging / discharging port 39.
The engagement with the locking pin 39c provided on the above is released by rotating the motor 23 with the hooking piece 37 of the hooking metal fitting 31 being in contact with the stopper 50a provided on the hooking tool 50 of the lid 17. As described above, the hooking piece 37 of the hooking metal fitting 31 is brought into contact with the stopper 50a provided on the hooking tool 50 of the lid 17 within the range in which the screw shaft 33 of the cylinder device 30 rotates by 90 °. Then, the engagement between the engagement groove 43 and the locking pin 39c may be released.

Further, the lid 17 and the tubular body 39a forming the inlet / outlet port 39 are fixed by fixing the engaging groove 43 provided in the lid 17 and the locking pin 39c provided in the tubular body 39a. The description has been given by using the example in which the engagement groove 39b provided on the body 39 and the engagement pin 41a provided on the lid 17 are engaged with each other. However, as shown in FIG. 17, for example, the rotating drum 12 is lightweight. In addition, when the amount of the powder material mixed is relatively small, the engagement pin 41a may only be engaged with the locking groove 39b as necessary.

Further, in the present embodiment, the step of introducing the powder material has been described, but the present invention is not limited to this,
It goes without saying that it can also be used when the lid is attached and detached in the cleaning step of cleaning the inside of the rotary drum 12 and the discharging step of discharging the powder material. Further, although three charging devices are installed and described as an example, it goes without saying that the effect of the present invention will be more enhanced as the number of charging devices increases.

[0054]

As described above, the present invention has a horizontally long shape.
It moves on the rail laid along the longitudinal direction of the support frame.
Mounts / fixes a lid attachment / detachment device on a mobile trolley that is currently installed
Therefore, the lid removed from the rotating drum by the attachment / detachment device at the detachment position of the lid provided on the front side of the powder material feeding device is attached to the movable carriage while being held by the attachment / detachment device.
From the lid mounting table to the attaching / detaching device.
Hold for a while and place it temporarily, and
After that, the lid mounted on the lid mounting table is attached to the attaching / detaching device.
It is possible to hold it in place and convey it to the opposite side of the lid removal position by the moving carriage , that is, to the attachment position of the lid provided on the end side of the powder material feeding device, and attach it to the rotary drum. As a result, there is no need to feed back the rotary drum as in the conventional case, and therefore the rotary drum can be always conveyed in only one direction to perform the powder material loading operation, which is convenient.

The device for attaching / detaching the lid is mounted / fixed.
The movable carriage is laid along the longitudinal direction of the horizontally long support frame.
Placed so that they can move relative to each other on opposite rails
However , by alternately moving these moving carriages, it is possible to simultaneously perform the work of removing the lid, carrying, and mounting the lid, so that it is possible to send a plurality of rotary drums to the loading device side, and thus the rotary drums can be fed. It is possible to reliably prevent the flow of the flow from being stopped.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a charging facility equipped with an automatic lid attachment / detachment / transportation device according to the present invention.

FIG. 2 is a side view showing an automatic attachment / detachment / transportation device for a lid according to the present invention.

FIG. 3 is a plan view of a support base.

FIG. 4 is a side view showing a notch of a main part of a lid mounting table.

FIG. 5 is a plan view of a lid mounting table.

FIG. 6 is a side view of a movable carriage.

FIG. 7 is a plan view of a moving carriage.

FIG. 8 is a rear view showing a notch of a main part of a moving carriage.

FIG. 9 is a perspective view showing a lid attaching / detaching device.

FIG. 10 is an enlarged vertical cross-sectional view showing a main part of a rotation drive unit of the lid attaching / detaching device.

FIG. 11 is a vertical cross-sectional view for explaining a connection relationship between a hooking metal fitting, a connecting shaft, and a connecting cylinder.

FIG. 12 is an explanatory diagram for explaining a position search operation of a latch by a sensor.

FIG. 13 is an explanatory diagram for explaining a mounting state of a sensor.

FIG. 14 is a vertical cross-sectional view showing a notched main part of a lid body.

FIG. 15 is a cutaway sectional view of a main part showing an enlarged main part of the lid.

FIG. 16 is a vertical cross-sectional view showing a notch of a main part of a charging / discharging port of a rotary drum.

FIG. 17 is a front view showing an input / output port of the rotary drum.

FIG. 18 is a plan view showing a state in which the sensor is stopped at the central position of the latch.

FIG. 19 is a front view showing a state after the search for the position of the latch is completed and before the lid is removed.

FIG. 20 is an explanatory diagram for explaining an operation of moving the screw shaft forward to push the hooking metal member toward the lid body.

FIG. 21 is an explanatory diagram for explaining an operation of rotating the screw shaft to engage the hooking piece of the hooking metal with the hooking tool of the lid.

FIG. 22 is a front view showing an engagement state between a locking pin and an engagement groove.

FIG. 23 is a plan view showing a state in which the hooking piece of the hooking metal is hooked on the hooking tool of the lid body.

FIG. 24 is a front view showing a state in which the engagement between the locking pin and the engagement groove is released.

FIG. 25 is a plan view showing a state in which the hooking piece of the hooking metal member is brought into contact with the stopper of the hooking tool of the lid body.

FIG. 26 is an explanatory diagram for explaining an operation of retracting the screw shaft to remove the lid from the rotating drum.

FIG. 27 is an explanatory diagram for explaining an operation of transporting the lid body removed from the rotary drum to the lid mounting table.

FIG. 28 is a front view showing a state in which the lid is conveyed to the lid mounting table.

FIG. 29 is an explanatory diagram for explaining an operation of mounting the lid on the lid mounting table.

FIG. 30 is a front view showing a state where the screw shaft is moved forward to press the lid against the lid mounting table.

FIG. 31 is an explanatory view for explaining an operation for rotating the screw shaft to release the engagement between the hook of the lid and the hook of the hook.

FIG. 32 is a front view showing a state where the screw shaft is retracted and only the lid is placed on the lid mounting table.

FIG. 33 is an explanatory diagram for explaining an operation of moving the first moving carriage to the lid removing position after the lid is placed on the lid placing table.

FIG. 34 is a front view showing a state in which the first moving carriage is moved to the lid removal position.

FIG. 35 is an explanatory diagram for explaining an operation of moving the second moving carriage to the position of the lid placing table and taking out the lid body placed on the lid placing table by the second attaching / detaching device.

FIG. 36 is a front view showing a state in which the lid is taken out.

FIG. 37 is a front view showing a state in which the lid is transported to the mounting position.

FIG. 38 is a front view showing a state where the lid body is attached to the rotary drum at the attachment position.

[Fig. 39] Fig. 39 is a plan view showing an example of a charging facility including a conventional lid attaching / detaching device.

[Explanation of symbols]

12 rotating drums 14 Support stand 15A, 15B mobile cart 15i drive motor 16a, 16b attaching / detaching device 17 Lid 19 Lid stand 23 motor 30 cylinder device 31 hook metal 33 screw shaft 37 Hook piece 39 input / output 50 hook A Automatic attachment / detachment / transportation device

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B67B 7/14-7/18 B67B 5/00 B65B 43/40 B67C 9/00 B65B 7/00-7 / 28

Claims (2)

(57) [Claims] 1. Arranged in a U-shape for transporting the rotary drum 12.
Roller conveyors 11a to 11c, and the rotary drive
A bottomed cylinder that opens and closes the inlet / outlet 39 of the tray 12
The lid 17 and the bottom of the lid 17 have a predetermined space.
A pair of hooks 50, 50 protruding from the conveyor, and the conveyor
Conveyors 11a, 1 which are parallel to each other and are opposed to each other.
1c, a horizontally long support frame 14 standing upright, and the support
Moved on the rail 18 laid along the longitudinal direction of the gantry 14.
A movable carriage that is movably arranged and the length of the support base 14
Direction of the rotary drum 12
The lid 17 removed from the input / output port 39 is temporarily placed.
A lid mounting table 19 is provided.
Cylinder equipment equipped with screw shaft 33 that rotates at a fixed angle
And the screw shaft 33 of the cylinder device 30.
A connecting shaft 32 that is operatively connected and a tip of the connecting shaft 32
A bottomed cylindrical hook attached to the end with the open end facing downward.
The metal fitting 31 and the opening edge of the hook metal fitting 31 conflict with each other.
Provided on the bottom surface of the lid 17 so as to project toward the direction of
Pair of hooking pieces releasably engaged with the latches 50, 50
The attachment / detachment device for the lid body 17 composed of
Mounted with the metal fitting 31 positioned above the bottom surface of the lid 17.
Fix it and wear it from the inlet / outlet 39 of the rotary drum 12.
The lid 17 removed by the detaching device is held by the detaching device
In that state, it is transported to the lid mounting table 19 by the moving carriage,
The holding by the attaching / detaching device is released and placed on the lid mounting table 19.
And after a predetermined time has passed, it is placed on the lid placing table 19.
The attached lid is held by the attaching / detaching device, and
Transporting to the lid mounting position and loading / unloading the rotating drum 12
An automatic lid attachment / detachment / conveyance device characterized in that it is attached to the outlet 39 . 2. A mounting / demounting device for the lid 17 is mounted and fixed.
The movable carriage is mounted along the longitudinal direction of the horizontally long support frame 14.
It is arranged on the laid rail 18 so as to be mutually movable in a state of facing each other, and these movable carriages are alternately moved so that the lid body can be removed, transported and attached at the same time. Item 1. An automatic lid attachment / detachment / transportation device according to item 1.