JPS59129674A - Detachable device for vessel cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container lid attachment/detachment device for attaching and detaching a lid fixed to an opening C of a container using a plurality of ports 1.

Conventionally, devices for closing the opening of a container containing a toxic substance and attaching and detaching the lid without touching the container have been known, but there have been problems such as a complicated structure and an unstable operation.

The present invention aims to solve the above-mentioned problems of conventional container lid attachment/detachment devices, and provides a device that can reliably attach and detach lids with a simple structure.

That is, the present invention provides a bolt runner for simultaneously tightening and tightening a plurality of bolts for fixing a lid that closes the opening of a container to the container C, a differential holding means for holding the removed lid, and a bolt runner and a bolt runner. It consists of a mounting frame for attaching the holding means, a moving device for moving the mounting frame in the direction of movement of the bolt, and a positioning pin for positioning the container with respect to the bolt runner. By moving the container forward and backward, the bolt connecting the container and the lid is rotated by the bolt runner, and the lid can be attached or removed.

Hereinafter, details of the container lid attachment/detachment/making cylinder of the present invention will be described based on an embodiment shown in the accompanying drawings.

In the figure, reference numeral 1 denotes a pair of left and right frames fixed at a constant height, such as on a floor (not shown), on which both ends of a horizontal frame 2 are fixed.

31 years old IXI A cylindrical container that was moved on a cart (not shown) and stopped at the lower center of the horizontal frame 2.

Reference numeral 4 denotes a lid that is attached to and removed from the upper opening of the container 3. The lid 4 is provided with a plurality of vertical holes 5 as shown in FIG. 1, and a port 6 is rotatably attached to each of the vertical holes 5. After the vertical hole 5 (or port 6) is fitted, the upper end of the vertical hole 6 is made to protrude inward to prevent it from falling out of the vertical hole 5.

An annular wall 7 concentric with the container 3 is provided on the upper part of the lid 4, and an engaging edge 8 is formed around the entire circumference of the upper end of the annular wall 7.

Reference numeral 9 denotes a moving device such as an air cylinder fixed to the central upper part of the horizontal frame 2, and its elevating rod 10 is fixed to the upper end of the mounting frame 11. 12 is sandwiched between a pair of left and right rollers 14 provided on the vertical frame 13 of the frame 1.

15 is a machine box fixed to the mounting frame 11, and a plurality of rotating shafts 16 are attached to this machine box 15;
The motor 17 is connected to the shaft of a motor 17 provided on the motor 5 via a reducer 33, and is rotated forward and backward independently.

18 is a hole runner attached to the lower end of the rotating shaft 16. This launch 18 has a hexagonal or other engagement hole 19 at its lower end into which the hexagonal or other head at the upper end of the port 6 fits, and a spline hole in a joint 20 fixed to the upper end is connected to the spline at the lower end of the rotating shaft 16. It is slidably engaged with the shaft.

Further, a washer 21 is fixed to the lower end of the rotating shaft 16 as shown in FIG. A push spring 23 is attached between 22 to impart downward elastic force to the port lunch 18.

A vertical cylindrical body 24 is fixed to the center of the lower end of the machine box 15, a rotating shaft 25 is mounted inside this cylindrical body 24, and a holding plate 26 is fixed to the lower end of this cylindrical body 24. This holding plate 2
Reference numeral 6 has a planar shape as shown in FIG. 4, and downward positioning pins 27 with tapered lower ends are fixed to the bottom of both ends thereof, and positioning pins 27 are fixed to the upper end 2 and lid 4 of the container 3. Vertical holes 28 and 29 into which 27 fits are provided.

The lower end of the rotary shaft 25 passes through the center of the holding plate 26 and protrudes downward, and a pinion gear 30 is attached to this protruding end.
It is fixed. Further, a plurality of gears 31 that mesh with the pinion gear 30 are rotatably attached to the lower end of the holding plate 26, and the engaging edge 8 of the lid 4 is attached to the lower side of each gear 31.
The differential holding means A is configured by fixing the engaging piece 32 that engages and disengages with the.

In addition, a drive mechanism such as a motor for rotating the rotary shaft 25 in forward and reverse directions is provided in the marking box 15.

In the embodiment, the number of ports 6 and port runners 18 is 2, but in reality, 8 or so are provided, and therefore there are also 8 vertical holes 5, etc.

The present invention has the above-mentioned structure, in which a container 3 whose opening at both ends is closed with a lid 4 and whose lid 4 is fixed with a plurality of bolts 6 is mounted on a cart (not shown) and placed directly below the apparatus of the present invention. When it is detected by some kind of detection device that the center of the container 3 and the center of the rotating shaft 25 coincide with each other, the cart stops, and the rotating mechanism on the cart operates to rotate the container 3 around its axis. However, when each port 6 comes directly under the bolt runner 18, the detection device operates and the rotation mechanism stops.

Then, the moving device 9 works, the mounting frame 11 and the machine box 15 are lowered, and the positioning pins 27 at the lower ends thereof fit into the vertical holes 28, 29 of the lid 4 and the container 3, thereby positioning the container 3 and the lid 4.

At this time, since each retaining piece 32 is oriented horizontally as shown by the chain line in FIG. 4, the engaging piece 32 does not hit the engaging edge 8i (fits into the annular wall 7. The bolt launch 18 at the lower end of the shaft 16 also descends onto each port 6, but if there is a misalignment between the engagement hole 19 at the lower end of the runner 1B and the head number of the port 6, the lower end of the runner 18 will be lowered onto the head of the port 6. During this time, the spring 23 is compressed and the rotating shaft 16, etc., further (slightly descend).

When the detection device detects that the mounting frame 11 etc. have reached the lower limit in this way, each motor 17 is started and the port runner 1
8 in the loosening direction. Runner 18 starts rotating!
At the same time, when the engagement hole 19 and the head of the bolt 6 match, the spring 293 lowers the runner 18, and the bolt 6 is loosened by the runner 18. rotated in the direction.

While the bolt 6 is being loosened, the rotating shaft 25 is rotated, and each engaging piece 32 is rotated outward as shown in FIG. 4 through the gears 30 and 31. The lower part of the engaging edge 8 protrudes like this.

The bolt 6 is completely removed from the screw hole of the container 3, and the engagement piece 3
When it is detected by some means that the two pieces have engaged with the engaging edge 8, the rotating shaft 16.25 stops and the moving device 9 works to raise the mounting frame 11, so that the engaging piece 32 is not engaged. It engages with the mating edge 8 and rises with the lid 4, and each bolt 6 also fits into the vertical hole 5 of the lid 4.
As shown in Figure 3, the container 3 is lifted up and the upper end of the container 3 is opened, and the container 3 moves on to the guarding process together with the trolley.

The lid 4 removed from the container 3 is held by the engaging piece 32 of the lid holding means A and is on standby as described above. Therefore, when the detection device detects that the container 4 without a lid has been placed on the trolley, has come to the bottom of the lid holding means A, has stopped, and has turned to a predetermined position.
The moving device works to lower the mounting frame 11, and the positioning pin 27 protruding from the bottom surface of the lid 4 first aligns with the vertical hole 28 of the container 3.
The container 3 is fixed by inserting the bolts 6 into the container 3, so that each bolt 6 hits the upper end of the tapped hole in the container 3. When this state is detected by some means, each motor 17 is activated to rotate each rotating shaft 16 in the tightening direction.

As a result, each bolt runner 18 rotates the bolt 6 and screws it into the threaded hole of the container 3, and when it is detected by some means that each bolt 6 is completely tightened, each motor 1
7 stops, the rotating shaft 5 is reversed, and each engaging piece 32 is rotated to the position indicated by the chain line in FIG. Leave. As mentioned above, the tightening of the bolt 6 is fixed in time, but by adjusting the air pressure, the tightening torque can be adjusted, and if the load torque becomes larger than the tightening torque, the motor 17 comes to a natural stop and cannot be forced.

This invention includes a device for moving a port lunch and a lid holding hand for rotating a plurality of bolts that fix the lid of a container (in the direction of movement of the bolts, for example, in the downward direction). Since it is mounted on the mounting frame, the mounting frame can be moved by a moving device such as an air cylinder, and the bolt launch can be rotated by a motor attached to the moving frame, making it easy to connect to the container. The tray can be attached and detached, and each bolt runner is mounted so that it can be moved independently with respect to the mounting frame by a spring, so there is an effect that no strain is caused when the bolt runner and bolt are connected or detached. .

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal front view of the attachment/detachment device of the present invention, FIG. 2 is a partially longitudinal front view 1 of the same, FIG. 3 is an enlarged front view of the lid holding means, and FIG. 14 is an enlarged cross-sectional plane of the same. It is a diagram. 3... Container, 4... Lid, 6... Bolt, 9...
Moving device, 11... Mounting frame, 18... Bolt runner, 23... Pressing spring, 27... Positioning pin. Patent applicant: Kubota Iron Works Co., Ltd. Agent: Kama 1) Text 2 Figure 1 9 Figure 2

Claims (1)

[Claims] 1. A bolt runner that simultaneously tightens a plurality of bolts that fix a lid that closes the opening of a container to the container, differential holding means that holds the removed lid, and a Holt runner as described in HiJ. The differential holding means (1) consists of a mounting frame, a moving device that moves the mounting frame in the direction of movement of the bolt, and a positioning pin that positions the container relative to the bolt launcher. 2. The mounting device as claimed in claim 1, wherein the hold runners are each separately mounted via a spring mechanism so as to be movable relative to the frame.