JPS6272444A - Installing device for band of drum can cover - Google Patents

Abstract

PURPOSE:To improve the work efficiency, and to realize a close installation by expanding a band by using a link mechanism and a driving device, and thereafter, installing automatically the band to the peripheral edge part of a shell body opening part and a cover. CONSTITUTION:When a band 8 is supplied to a band transfer device 17, and a link mechanism 42 is operated by operating a link driving device 49, tip parts 45, 46 of a link push the inside peripheral surface of the band 8 in the outside diameter direction, and spread out the band 8 a little. Subsequently, a band moving device 17 transfers the band 8 to right above a cover 5 which is placed on a shell body opening part of an open type drum can 2 being in an erect attitude. By operating a fitting device 65, the shell body 2 or the band 8 is made to ascend and descend, and positioned, and also by operating a band detaching device 55, the band 8 is fitted to the peripheral part of the cover 5 of the band 8. Thereafter, the cover is fixed to the opening part of the shell body by clamping it by a clamping bolt. In such a way, the band can be installed efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for automatically attaching a band for fixing a lid to the body of an open drum can to the opening of the body and the peripheral edge of the lid.

(Prior Art) In an open drum can, a ring-shaped metal band that has been cut off halfway is attached to the peripheral edge of a lid placed at the opening of the body.

Then, the bolt attached to the cut-off part of the band is tightened to fix the lid to the body.

Traditionally, band attachment work was done manually. This work required great physical strength and skill to twist and expand/contract the band.

As a device for attaching such a band, Japanese Patent Application Laid-open No. 57
No. 104900 ``Automatic drum lid sealing device'' is known. This device is used when manual work is dangerous, such as filling and sealing radioactive waste. In addition, in this device, the band is fitted in advance to the peripheral edge of the lid, and the lid held by the holder is transferred by an alignment a mechanism directly above the opening of the body of the drum in the upright position. Then, the support arm supporting the holder is lowered by a cylinder, and the garment and the band are integrally attached to the opening periphery of the body.

(Problems to be Solved by the Invention) In the above-mentioned conventional device, the band is attached to the periphery of the garment in advance and then attached to the body, so the attachment work requires two culms.
It is not efficient, and in order to fit the lid with the band removed around the opening of the body, the center diameter of the band must be at least larger than the center diameter of the part where the lid fits into the body. , Therefore, the hand has a large diameter,
Tightening also makes the bolts longer. Furthermore, when tightening bolts, the tightening margin becomes large, reducing work efficiency.

(Means for Solving the Problems) The drum lid band attachment device of the present invention is a band attachment device for a drum lid that is attached to a stirrup at the opening of the body of an open drum can in an upright position. (2) It consists of a device for transferring the band to the belt, a hent holding device and a pad layer removal device which are inserted into the band transferring device, and a fitting device.

The hunt transfer device is equipped with a head holding device and a hunt release device, and is driven by a hydraulic or pneumatic cylinder, an electric motor, or the like.

The band holding device includes a link mechanism and a link drive device. The link mechanism consists of at least two links. The tip of each link serves as a holding portion that pushes the inner circumferential surface of the band in the outer radial direction. Further, the link drive device includes a hydraulic or pneumatic cylinder, an electric motor, etc., and the rear end of the link is connected to the output portion of these, for example, to the tip of the piston rod. The link mechanism expands and contracts in the band radial direction by operating a pneumatic cylinder or the like.

The band detachment device consists of a plurality of arms extending in the band radial direction and an arm elevation Ill device. The tip of the arm is a push-down part that hits the top of the band.

The number of arms requires at least the number of links. In view of the release action of the band, it is desirable that the arms be provided close to both sides of the links, in which case the number of arms would be twice the number of links. The arm lifting device is equipped with a hydraulic or pneumatic cylinder, an electric motor, etc., and the arm is raised and lowered by the operation of the pneumatic cylinder.

Fit together! Position A is equipped with a hydraulic or pneumatic cylinder, an electric motor, etc., and raises or lowers either the body or the band, and fits the band to the peripheral edge of the lid placed in the opening of the body.

The drum lid band rejuvenation device configured in this way is
It is installed in the drum production line or at the worksite where drums are filled with contents.

(Function) Each device constituting the band attachment device, such as the band transfer device, operates automatically by sequence control, for example.

When a band is supplied to the band transfer device at a band supply position adjacent to the band attachment device, the link drive type of the band holding device is operated to push the link mechanism outward in the outer diameter direction. As a result, the tip of the link pushes the inner circumferential surface of the band in the outer radial direction, pushing the band slightly wider. The band is held by the band holding device by friction between the band and the holding portion. Then, move the band! The device transports a band held directly F of a lid placed in the body opening of an open drum in an upright position.

When the band reaches the straightness of the lid, the fitting device is activated to lower the body or the band and fit the band to the periphery of the lid which is fitted into the body opening. Then, the band release device is activated and the tip of the arm pushes down the top of the band. The band, which had been slightly stretched out, comes off from the holding part and springs 8-2. The spring-backed band presses the periphery of the ring against the periphery of the opening in the body and is held against these peripheries by the force of friction.

The band held at the periphery is tightened with bolts at the tube loading station or elsewhere to secure the lid to the opening in the body with the bundling.

(Example) Hereinafter, an example of the present invention will be described with respect to a band attachment device installed in a drum production line.

1 to 3 are a plan view, a front view, and a side view, respectively, of a band attachment device installed on a production line.

As shown in these drawings, the band attachment device 15 is placed in the middle of a conveyance line made up of roller tables 11. On the roller table 11, the rollers 12 are driven to rotate, and the body 2 of the open drum can 1 with the lid 5 inserted into the opening is conveyed in a vertical position.

The band attachment device fi15 mainly includes a band transfer device 17,
Band holding device 41. It is composed of a band separating device i55 and a fitting device B5.

The band transfer device 17 includes a support frame 18,
A horizontal portion 19 is provided at the top of the support frame 18 and extends perpendicularly to the conveying line. A rail 23 is attached to the horizontal portion 19 along this.
Pillars 26 extend downward from the four corners of the 0-bogie 25 on which the 0-bogie 25 is placed. The pillar 26 supports a disk-shaped plate 27. Further, a pneumatic cylinder 33 for transferring the band is attached to the horizontal portion 18 of the support frame, and the tip of the cylinder rod 34 is connected to the truck 25.

Additionally, a bracket 21 is attached to the vertical portion 20 of the support frame 18.
is installed. A pneumatic cylinder 36 for band supply is vertically attached to the bracket 21, and a supply table 39 is fixed to the tip of a cylinder rod 37.

FIGS. 4 and 5 show a band holding device W141 and a band detaching device 155 provided on the cart 25, and are a front view and a plan view, respectively.

The band holding device i41 includes a link mechanism 42 made up of two links 43 and a band holding pneumatic cylinder 49 fixed on the substrate 27. A movable holding claw 45 that projects downward is provided at the tip of the link 43. On the other hand, as shown in FIG. 6, a radially extending guide hole 28 is provided near the outer periphery of the substrate 27, and the movable holding claw 45 passes through the guide hole 28. Further, the rear end of the link 43 is connected to the tip of the cylinder rod 50 via a connecting fitting 52. Therefore, the operation of the band holding pneumatic cylinder 49 causes the link 43 to
moves forward and backward, and the link mechanism 42 expands and contracts. Furthermore, a fixed holding claw 46 similar to the movable holding claw 45 is fixed to the lower surface of the base plate 27 at a position corresponding to the rear end of the band holding pneumatic cylinder 48.

The band detachment device 55 has six arms 5 extending radially.
6, and a pneumatic cylinder 81 for removing the band. The rear end of the arm 5B is connected to a post 57 as shown in FIG. 7, and the distal end has a release pin 59 extending downward.
is fixed. The Is de-pin 58 passes through a round hole 29 provided near the periphery of the substrate 27, and its lower end serves as a push-down portion that corresponds to the top of the band. Further, the detachment bins 59 are located adjacent to both sides of the holding claws 45, 48. On the other hand, a band release pneumatic cylinder 81 is fixed to the lower surface of the truck 25. A boss 57 of the L arm 5B is fixed to the lower end of the cylinder rod B2.

A fitting pneumatic cylinder 6B is arranged directly below the roller table 11, and a lifting table B9 is fixed to the tip of the cylinder rod 67.

Also, a stopper 7 that moves up and down while being guided by a guide 74 is mounted on a pedestal 72 adjacent to the fitting pneumatic cylinder 6B.
3 is provided. The stopper 73 is actuated by a stopper pneumatic cylinder 75.

Next, the operation of the drum lid band attachment device 15 configured as described above will be explained.

As shown in FIG. 2, the roller table 11 carries the drum 1 in a vertical position with the lid 5 placed on the opening of the body. When the drum 1 comes to the band attachment position, the stopper 73 is raised by a signal from a drum detector (not shown) such as an optical sensor to stop the drum 1.

- On the other hand, when the single carriage 25 is moved backward and away from the conveyance line as shown by the dashed line in FIG. 3, the link mechanism 42 is contracted. At this time, set band 8 to 112
The supply table 39, which has been adjusted to the position shown in FIG. Subsequently, when the band holding pneumatic cylinder 49 is actuated to extend the link mechanism 42, the movable holding claw 45 and the fixed holding claw 46 at the tip of the link come into contact with the inner peripheral surface of the band, further pushing the band 8 wider.

Figure 8 shows the inner diameter of the band from dl to d? It shows the state where it is stretched out. In this way, the band 8J is held by the band holding device 41.

When the band 8 is held, the transfer pneumatic cylinder, VB2
is operated, and the carriage 25 moves forward and comes directly to the roller table 11. At this time, the center of the drum 1 and the center of the band 8 coincide.

When the band 8 reaches the straightness 45, the mating pneumatic cylinder 86 is actuated to raise the fuselage 2 until the peripheral edge is within the band. FIG. 9 shows the state immediately before the band 8 is attached. That is, as shown in the drawing, the fuselage 2
M5 is placed on the opening peripheral portion 3 (curled portion) of the opening with a hollow gasket 9 interposed therebetween. Band 8 held by retaining claws 45.48 on the outside of the body opening and the periphery 3.6 of the lid 5
is located.

Subsequently, the band detachment pneumatic cylinder 61 operates, and the detachment pin 59 at the tip of the arm 5B pushes away the pan Fta. Hunt 8, who was being pushed wide by the young F, is holding claw 4.
It comes off from 5 and 4B and springs back. As shown in FIG. 1θ, the spring-backed band 8 connects the peripheral edge 6 of the mantle 5 via the gasket 9 to the opening peripheral edge of the body 2. ! &
If you press it to 3, it will be 1.

It is held on these peripheral edges 3.6 by frictional forces.

The drum 1 with the band 8 attached thereto is conveyed to the next process by a roller table 11. Then, the bolts are tightened to fix the toma 5 to the opening of the body 2 using the band 8.

FIG. 11 shows another example of the holding claw. The outer half of the lower end of the holding claw 77 is cut out, and the inner half is a protrusion 79. The protrusion i'1l179 holds the band 8 and compresses the gasket 9 to close the lid opening edge 6.
is pressed against the opening periphery 3 of the body 2. In the above embodiment, as shown in FIG. 9 and FIG.
The lower end surface cannot press the lid opening edge 6.

In this embodiment, the holding claw 77 has a notch! ! Band 8 springs back by an amount corresponding to 78. Therefore, after the band is attached, the blood pressure between the body opening and the peripheral edge 3.6 of M5 and the band 8 and the frictional force due to the blood pressure become large. As a result, the band 8 does not expand in diameter and is more tightly attached to the peripheral edges 3, 6.

(Effects of the Invention) In the apparatus of the present invention, since the hunt 8 is attached to the lid 5 placed on the opening peripheral portion 3 of the body 2, the pipe installation work can be completed in one step, resulting in efficient drainage.

Furthermore, since the band 8 is enlarged and worn, the diameter of the band 8 can be small, and the band 8 can be tightly attached due to the springback of the band 8 when worn. Furthermore, as is clear from the comparison between the conventional device shown in FIG. 12 and the device of the present invention shown in FIG. The tightening allowance g becomes smaller and the work efficiency improves.

[Brief explanation of drawings]

1 to 3 are a plan view, a front view, and a side view, respectively, of a band attachment device installed on a production line. FIGS. 4 and 5 show a band holding device and a band detaching device provided on the 1-marked truck, and are a front view and a top view, respectively. FIG. 6 is a plan view showing a part of the substrate of the band transfer device. FIG. 7 is a top view showing a part of the band detachment device. FIG. 8 is a diagram illustrating the enlargement of A within the band. FIG. 9 is a front view showing the state immediately before the band is put on. FIG. 1O is a top view showing the state immediately after the hunt is installed. FIG. 11 is a front view showing another example of the holding claw. FIGS. 12 and 13 are top views illustrating the tightening of bolts in the case of the conventional device and the case of the device of the present invention. 1...Drum, 2...Body, 5...Otsu, 8...
- Band, ll... Roller table, 15... Band mounting device, 17... Band transfer device, 18...
Support frame, 23... Rail, 25... Dolly, 2
7...S (plate, 2B...guide hole, 29...round hole, 33.38.4S, θ1.68.75-0.pneumatic cylinder, 39...supply table, 41... Band holding device, 42...Link mechanism, 45.46.77...
・Holding claw, 55-29 band detachment device, 56... arm, 53... detachment pin, 65... fitting device,
89... Lifting table, 73... Stopper.

Claims (1)

[Scope of Claims] 1) A device for transferring a band directly above a lid placed on the body opening of an open drum can in an upright position, a band holding device and a band detaching device provided in the band transferring device;
and a fitting device that lifts or lowers either the body or the band, and automatically attaches the band to the opening of the body and the peripheral edge of the lid, wherein the band holding device is configured to attach the inner peripheral surface of the band to the tip of the link. The band consists of a link mechanism equipped with a holding part that pushes the band in the radial direction, and a link drive device that expands and contracts the link mechanism in the band radial direction. A drum can lid band attachment device comprising a plurality of arms extending in the direction and an arm lifting device. 2) The drum can lid band attachment device according to claim 1, wherein the outside of the holding portion is notched.