JPS6020103B2 - Metal lid fitting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a metal lid which is iron-bonded to a container mouth provided on a husband plate of a container, and which is secured by extending the metal lid to the lower side of the container mouth rim by the gunwale of the metal lid peripheral wall. This is related to immediate muscle attachment.

As a technique for sealing the container mouth with a metal lid, the metal lid has a peripheral wall part higher than the height of the container mouth wall and a folded part that overlaps the container rolling board, and the peripheral wall part is iron-bonded to the container mouth. It is well known that there is a technique to prevent the container from coming out by pressing the lower part of the peripheral wall over almost the entire area to bulge out to the side of the lower end of the container.

For the bulge at the lower part of the peripheral wall, a split mold consisting of a number of mold pieces arranged in a circular arrangement is used.

The split mold used is capable of contracting and enlarging its diameter by vertically displacing a stepped cam member facing the inside of a large number of mold pieces arranged in an annular arrangement. This makes it possible to process the seams of the section and to sample them after processing. In this case, the mold piece is generally supported almost upright, a pressure surface that is pressed against the peripheral wall of the metal lid is formed on the outside of the lower part, and the cam member is brought into super contact with the back surface to spread the friction. It required a lot of force.

For this reason, the work required to attach the metal cover iron to the lever-type drive mechanism becomes laborious.

Therefore, the split mold is made up of a large number of mold pieces arranged in a substantially horizontal radial arrangement, and each of the mold pieces has a fulcrum at the upper part of the outer end, and by moving the inner end up and down, the lower part of the outer end can be controlled. A metal lid with iron pupil was developed, which has a structure that creates a displacement on the pressure surface to enable diameter expansion of the metal lid peripheral wall and extraction after processing, and uses fluid pressure to move the inner end up and down. Ta.

When using fluid pressure, the main body of the metal cap bale mounting layer is necessarily formed into a relatively flat cylinder shape, and the vertical movement of the inner end of the press piece attached to the bottom surface of the metal cap bale mounting layer body is controlled by the metal cap. This is done by the movement of a piston housed within the main body of the iron-clad layer. In order to move the piston up and down, fluid pressure must be supplied to and discharged from the lower and upper chambers of the cylinder, and for this switching operation, the trigger or lever that operates the actuator of the switching valve must be operated with your fingertips. It will be operated.

Although it is sufficient to operate this trigger or lever with an operating force smaller than the lever operating force used to operate the ripple bar type drive mechanism, when a large number of metal lids are iron-bonded one after another, the fatigue of the fingertips becomes significant. , and can cause occupational diseases.

The present invention is based on the above-mentioned viewpoints, and when the container is brought into contact with a predetermined metal lid fitted with iron to the container mouth in a predetermined posture, the lining process is automatically performed on the lower part of the metal lid peripheral wall. This is a labor-saving metal lid bonding device that automatically shrinks and can be removed after processing, and uses fluid pressure to drive a split mold consisting of a collection of multiple mold pieces arranged horizontally and radially. A type of metal cap iron installation method in which a piston is fixed in the same D manner to an elevating member that supports the inner end of each stamping piece so that it can move up and down, and the interior is formed into a cylinder that accommodates this piston so that it can move up and down. An operating terminal member of a pseudo switching mechanism for supplying fluid pressure to the upper and lower chambers of the cylinder is provided at a predetermined position on the main body of the apparatus, so that the automatic machining operation can proceed freely after contact with the metal plate.

Next, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows the state before the start of machining as a longitudinal sectional view with some parts cut out, and Fig. 2 shows the state during processing with some parts cut out. As shown in a vertical cross-sectional view with parts cut away, and as shown in a top view with parts cut away in FIG. A split mold 4 consisting of a number of mold pieces 3 arranged horizontally and radially is attached. Device body 2
a cylindrical member 5 having a concentric hole 6 at the center of the bottom portion 5A;
A lid plate 7 fixed on the circumferential body 5B of the cylindrical member 5, a press-shaped piece support ring 8 fixed on the lower surface of the flange 8C formed on the outer periphery of the lower end of the cylindrical member 5, and a bottom 5 of the cylindrical member 5.
The boss 7A, which is made up of an annular member 9 fixed to the lower surface of A and protrudes from the center of the upper surface of the lid board 7, has a base 10 of a handle 10 whose upper part is formed into left and right horizontal gripping parts 10A, 10A.
B is fixed.

A conical protrusion I1 is provided in the center of the lower surface of the lid plate 7, projecting downward, and a tube part 12 is fixed with iron to this protrusion 11.

A disk-shaped piston 13 is housed within the cylinder.

The piston 13 has a hole 14 in the center, into which the guard member 12 is assembled.

On the other hand, a circular block 15 is fixed concentrically to the lower surface of the piston 13 with a plurality of bolts 16.

The flock 15 has an outer diameter that allows it to be vertically movably inserted into the hole 6 at the center of the bottom 6A of the cylindrical member 5 forming the device main body 2, and a concentric annular groove 17 is provided on the lower surface. is a washer 19 that fixes the annular metal 18 in the groove 17.
is fixed with screws 20.

The washer 19 has a flange 9A on its lower outer periphery, and the inner end 3A of the mold piece 3 is held by this flange 19A and the metal 18.

The press mold piece 3 has a lower outer end formed as a pressure surface 3a, and an outer end 3B above the pressure surface is inserted into an annular groove 21 formed by an inward flange portion 8A of the ring 8 and an annular member 9. When the inner end portion 3A is moved up and down, the pressing piece 3
is supported so that it moves up and down using the outer end 3B as a fulcrum, and the pressurizing surface 3a is displaced inward.

A piston downward movement operation terminal member 23 of a predetermined length is inserted into a hole 22 extending vertically through the circumferential body portion 5B of the cylindrical member 5 of the device body 2, the lid plate 7, the ring 8, and the annular member 9.

The operation terminal member 23 for lowering the piston is provided with the main body 2 of the device of the present invention on the sloped portion 24A of the metal container 24, as shown in FIGS. When placed on the metal lid 25, which has an outwardly facing folded part 25A hooked on the mouth wall 24B, it is a village-like member that touches the folded part 25A of the metal lid 25 and is pushed up. Actuator 26 of cam valve 26 installed on panel 7
This is the member that operates this valve by pressing A.

In addition to the operation terminal member 23 for lower piston movement, an operation terminal section 27 for upward movement of the piston is provided on the piston 13 in an upright manner.

The operation terminal member 27 for upward movement of the piston passes through the cover plate 7 in an airtight manner and protrudes upward, and is connected to the plate 2 attached to the upper end.
8 is a member facing the actuator 29A of the cam valve 29 provided on the lid plate 7, and operates the cam valve 29 when the piston 13 reaches the lower limit.

The piston downward movement operation terminal members 23 are provided one by one at diametrically symmetrical positions on the device body 2, and cam valves 26-1 are provided at diametrically symmetrical positions on the cover plate 7, as shown in FIG. , 26 and 2 at the same time, and both of these two cam valves open, allowing air to flow.

By providing two cull valves 26 at diametrically symmetrical positions, it is possible to avoid the risk of expanding the split mold 4 while the device main body 2 is tilted when the device of the present invention is brought into contact with the metal lid 25. If two or more are provided, the above-mentioned danger can be more reliably avoided.

However, if there is a guarantee that the device body 2 can be correctly placed on the metal lid 25 without having to be disassembled, only one cam valve 26 will be required.

The cam valves 26 and 29 are provided, for example, in a pneumatic circuit supplied from a compressor 30 through a pressure valve 31 that opens at a predetermined pressure or higher, as shown in the pneumatic sequence diagram shown in FIG.

As shown in FIG. 6, the pressurized air that has passed through the pressure switch 31 is transferred to circuit A of the test push-button valve 32 and control circuits B, C, and D having cam valves 26, 29, etc.
Then, the flow branches into the operating circuit E which reaches the cylinder via the master valve 33.

The pressure air flowing around the cam valves 26-1 and 26-2 becomes the pressure that operates the timer 34, and the pressure from the timer 34 becomes the pilot pressure for the master valve 33.
Since it acts via the timer 34, the operating pressure reaching the cylinder 1, that is, the pressure from the master valve 33 for lowering the piston 13, is made to act on the piston 13 with a slight delay, for example, a delay of about 5 seconds. There is.

Cam valve 2 that opens when the piston 13 reaches the lower limit
9, the pressure air passes through the timer 35 to the master valve 3.
The master valve 33 is switched by the elasticity of the spring 36 to eliminate the pilot pressure to the upper chamber IA of the cylinder 1.
is opened to the atmosphere and operating pressure is supplied to the lower chamber IB, but in this case as well, the operation is delayed by about 5 seconds due to the action of the timer 35.

The circuit shown in FIG. 6 is only an example, and the device of the present invention, which has correctly placed the device body 2 on the metal lid 25, fully automatically splits the mold after the device body 2 is applied to the metal lid 25. 4 out wide,
The peripheral wall portion 25B of the metal lid 25 is connected to the husband plate portion 24 of the metal container 24.
Any circuit can be used as long as it automatically returns the split mold 4 to its old, shrunken state after expanding the diameter toward the lower side of A and allows removal from above the metal lid 25. good.

In addition, codes 37, 38, 39, 40, 41 are ○ rings,
Ring coil springs 43 and 44, which provide the three groups of press mold pieces of the split mold 4 with bran uniformity, are air passages formed in the boss portion 7A and communicate with the boats 33A and 33B of the master valve 33, respectively. Reference numeral 45 indicates a hanging fitting, and reference numeral 46 indicates a packing material filled on the back side of the folded portion 25A of the metal lid 25.

Since the present invention is configured as described above, unless the main body 2 of the device is placed on the metal lid 25, the operation terminal member 23 for lowering the piston will remain in the lowered position as shown in FIGS. 1 and 4. It is in a state.

In this state, the cam valves 26 (two cam valves 26-1 and 26-2 in this embodiment) and 29 are closed and no pilot pressure is supplied to the master valve 33, so the master valve 33 Since the upper chamber IA is opened to the atmosphere (the state illustrated in FIG. 6) and the operating pressure of the lower chamber IA is supplied, the piston 13 is at the upper limit position. Piston 13
If the mold pieces 3 are raised, the inner end 3A of each mold piece 3 of the split mold 4 is pulled up, and the mold piece 3 assumes an inclined position with the inner end 3A raised using the outer end 3B as a fulcrum.

The press mold piece 3 is in a position in which the pressurizing surface 3a is the most inward, and if the device main body 2 is vertically lowered onto the horizontal metal lid 25, the peripheral wall 25B of the metal lid 25 will The split mold 4 can be set on the metal lid 25 without interference.

If the split mold 4 is correctly set on the metal lid 25, the piston downward movement operation terminal member 2 is placed on the folded part 25A of the metal lozenge 25.
3 is in contact with the lower end of this piston downward movement operation terminal member 23
is pushed up, so the actuator 26A of the cam valve 26 is pushed up as shown in FIGS. 2 and 5, and the cam valve 26 transfers the pilot pressure to the timer 34.
It will be supplied to the master valve 33 via.

The master valve 33 that receives the pilot pressure is connected to the spring 3
Successfully resists the force of 6 and passes the operating pressure to the boat 33A,
Since the boat 33B is opened to the atmosphere, pressurized air enters the upper chamber IA of the cylinder, and the pressurized air in the lower chamber IB communicating with the boat 33B is dissipated to the atmosphere. Therefore, the piston 13 is pressed down, and the inner end portions 3A of the mold pieces 3 of the split mold 4 are simultaneously pressed down, pushing the pressing surface 3a outward.

Due to this operation of the split mold 4, the split mold 4 spreads the lower part of the peripheral wall portion 25B of the metal lid 25 and causes it to protrude below the sloped portion 24A of the metal container 24. It is fixed so that it does not come off from the mouth wall 24B.

When the piston 13 reaches the lower limit, the upper plate 28 of the operation terminal member 27 for upward movement of the piston, which has lowered together, pushes the actuator 29A of the cam valve 29, so the cam valve 29 prevents pressure air from flowing to the control circuit D. forgive.

The pressure air flowing into the control circuit D cancels the operation of the cam valve 26 by the sequence circuit shown in FIG.
The force of 6 returns to the old state, and the operating pressure returns to boat 33D.
The boat 33A is opened to the atmosphere.

Due to this operation, pressure is supplied into the lower chamber IB of the cylinder 1, so the piston 13 rises, the diameter of the split mold 4 is reduced,
Pressure surface 3a is displaced inward.

In this state, the device main body 2 can be raised, so if the device of the present invention is pulled up as it is, the metal lid rigging work will be completed and it will be ready for the next berthing work. As is clear from the above description, the device of the present invention can fully automatically proceed and complete the work of fixing the metal lid to the container mouth by bending the lower part of the peripheral wall of the metal lid by simply applying the rope to the metal lid correctly. It has excellent advantages, not only does it cause almost no fatigue to normal workers, but it can also be expected to significantly improve work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway vertical sectional view of an embodiment of the apparatus of the present invention showing the state before metal lid ironing process, and FIG. 2 shows a part of the apparatus shown in FIG. 1 during metal lid ironing process. 3 is a partially cutaway plan view, FIG. 4 is a partially cutaway enlarged longitudinal sectional view showing one side of the operating terminal member before processing, and FIG. 5 is a partially cutaway partially cutaway longitudinal section. FIG. 6 is an enlarged longitudinal cross-sectional view with a part cut out, and is a pneumatic sequence circuit diagram. 1...Cylinder, IA...Upper chamber, IB...Lower chamber, 2...
...Device body, 3...Mold piece, 3A...
・Inner end, 3B... Outer end, 3a...
Pressure surface, 4... split mold, 13... piston, 23... piston downward movement operation terminal member, 2
6...Cam valve, 27...Piston upward movement operation terminal member, 28...Plate, 29...
Cal valve, 30...combrezzar, 31...pressure valve, 33...master valve, 33A
, 33B...Boat, 34, 35""M timer. younger brother! Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A split mold that secures the metal lid to the container mouth by expanding the diameter of the peripheral wall of the metal lid, which has an outward folded part that hooks onto the mouth wall of the container, toward the lower side of the mouth wall of the container. In a metal lid fitting device in which the split mold is an assembly of a plurality of pressing mold pieces arranged horizontally and radially, an elevating member supports the inner end of each pressing mold piece of the split mold so as to move up and down. A device main body is provided in which a piston is fixed concentrically and the interior is formed in a cylinder housing the piston, and an operation terminal member for lowering the piston that can be freely engaged with the folded portion of the metal lid and moves integrally with the piston. A piston upward movement operation terminal member is provided in the device main body, and a fluid pressure supply/discharge switching mechanism to the upper and lower chambers of the cylinder can be freely switched via the piston downward movement operation terminal member and the piston upward movement operation terminal member, A metal lid fitting device characterized in that an automatic processing operation can be freely progressed after contacting the metal lid.