JPS6330247B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a can lid supply and delivery device in a metal can lid fitting machine equipped with a can lid fitting mechanism for fitting a metal can lid into an opening provided in a top plate of a can body, etc. It is something.

The so-called can lid fitting mechanism, in which the contents are charged through an opening provided in the top plate of a square can, etc., and a metal can lid is fitted into the opening to seal the can, has an expander that can be expanded and contracted in the radial direction. It has an opening claw, and the inner lower part of the can lid fitted into the opening is expanded and tightly attached by expanding the opening claw.

The present invention is a can lid supply and delivery device for automatically supplying can lids one by one to the can lid fitting mechanism in a timely manner in metal can lid fitting equipped with such a can lid fitting mechanism. , a can lid supply mechanism provided with a circular opening at the end of a vertical supply path, locking portions at the ends facing upward and downward opposite sides of the circular opening, and the other end being pivoted to the wall of the vertical supply path. An upper swinging member and a lower swinging member are provided to support the wall, and a roller is attached to the end of the center mounting piece of each of the upper swinging member and the lower swinging member on the rear side of the vertical supply channel wall, and a roller is installed between the rollers. a can lid pushing mechanism, comprising: an actuating piece that penetrates into the opening and swings the upper swinging member and the lower swinging member to allow the locking portion to freely expand and open; and further comprising a pushing tool that can freely protrude from the circular opening; and an arm equipped with a can lid holder at the tip, which corresponds to the end of the vertical supply path and faces the can lid held by the can lid extrusion mechanism, is horizontally rotatable at a predetermined angle and rotated around an axis. This is a can lid supply and delivery device for a metal can lid fitting machine, which is comprised of a can lid delivery mechanism that is flexible and can lift a can lid holder.

Embodiments of the device of the present invention will be described with reference to the drawings.

The metal can lid fitting machine A shown in the drawing has a frame 3 fixed horizontally to frames 2, 2 erected on one side of the machine base 1, and a can lid supply mechanism 4 on one side of the frame 3. A can lid fitting mechanism 7 is provided on a branch 6 fixed to a support 5 erected at the end thereof, and a can lid fitting mechanism 7 receives a metal can lid from the can lid supply mechanism 4. A can lid delivery mechanism 8 is provided.

The can lid supply mechanism 4 has a meandering vertical supply path 10 that sequentially slides can lids A and A on the front surface of the support member 9.
A rail 10 is provided in this vertical supply path 10.
a are fixed with bolts or the like, and the can lids are formed in a line from the starting end 11 to the ending end 12.
2 is provided with a can lid pushing mechanism 13.

As shown in FIGS. 4, 5, and 6, the can lid push-out mechanism 13 has a side edge locking portion disposed at the terminal end 12 of the vertical supply path 10 to receive one can lid. 14a, an upper edge locking part 15a, and a lower edge locking part 16a, respectively.
It has an upper swinging member 15 and a lower swinging member 16 at the end,
The upper swinging member 15 and the lower swinging member 16 have inner end faces 15b and 1 on the outer end face 10b of the rail 10a, respectively.
6b in contact with each other, connect the other end to pin 1.
7 and 18 to the wall of the vertical supply channel 10, and at the terminal end 12 of the vertical supply channel 10, the wall of the vertical supply channel 10 is concentric with the center _O1 of the received can lid. Upper and lower edge locking portions 15a and lower edge locking portions 16a are provided on the upper and lower side walls of the circular opening 19, respectively.
At the terminal end 12 of the vertical supply path 10, the upper edge of the can lid is held concentrically with the circular opening 19 together with the wall of the vertical supply path 10 and the side edge locking portion 14a. Locking part 15a, lower edge locking part 1
6a are formed respectively.

As shown in FIG. 5, the upper swinging member 15 and the lower swinging member 16 have respective continuous plate portions 15c, which extend from the front surface 10c side to the rear surface 10d side of the supply channel 10 wall.
Mounting pieces 15d and 16d are connected to the supply path 10 wall and extend along the rear surface 10d of the wall of the supply path 10, and rollers 15 are attached to the ends of these mounting pieces 15d and 16d, respectively.
e, 16e are pivotally connected, as shown in Figure 5,
Rod 21 of cylinder 20 fixed to rear surface 10d
An operating piece 22 with a pointed tip is connected to the end, and this operating piece 22 can move forward and backward along a guide member 23, and when the operating piece 22 enters between the rollers 15e and 16e, the upper swinging member 15, lower swing member 1
6 are formed to swing in vertically opposite directions using pins 17 and 18 as fulcrums, respectively.

Further, an extrusion cylinder 24 is fixed to the rear surface 10d, and by operating the extrusion cylinder 24, the pushing tool 25 can be freely projected from the circular opening 19 toward the front surface 10c of the wall of the vertical supply path 10.

In the figure, 26, 26 are return springs.

Next, the can lid delivery mechanism 8 is formed as shown in FIGS. 8 to 11.

That is, the flange-like member 28 is fixed to the fitting hole 27 provided near the left end of the horizontally fixed frame 3,
A pedestal member 30 with a lower cylindrical portion 30a rotatably inserted into the vertical hole 29 of this flange-like member 28 is provided, and the lower surface of the head 30b of this pedestal member 30 is connected to the top surface of the flange-like member 28 and the frame 3. It is rotatably slidable on the upper surface 3a.

An operating shaft 32 is inserted into an insertion hole 31 vertically passing through the center of the base member 30 so as to be able to rise and fall, and the upper end of a piston rod 33A of a cylinder 33 is fixed to the lower end of the lower part 32a of the operating shaft 32. The cylinder 33 is actuated, the piston rod 33A is moved up and down, and the operating shaft 32 is raised and lowered.

Operating shaft 3 protruding from the upper surface of the pedestal member 30
One end of the link 34 is attached to the upper end of the support member 3 , and the base end is inserted into the insertion hole 31 that runs along one side of the pedestal member 30 and penetrates from one side of the pedestal member 30 to the other side.
Rotatably insert the shaft 36 fixed to 5, and screw 3
7, tightly fitting the end of the shaft 36 into the lever 38,
A lever 38 is vertically swingable about a shaft 36. A hole 39 is provided at the other end of the lever 38, and the lower part of a screw shaft 40 through which the link 34 is inserted is inserted into the hole 39 and set with a nut 41, and a compression spring 42 is arranged below.

The screw shaft 43 is moved up and down together with the screw shaft 40 to finely adjust the vertical swing of the lever 38, thereby making it possible to adjust the horizontal state of the arm 45 having the can lid holder 44 fixed to its tip.

Further, an arm holding cylinder 46 extending along the other side of the pedestal member 30 is provided, and the base end of the arm 45 is inserted through the insertion opening 47 of the arm holding cylinder 46.
The front end of the spring 49 is fixed to the arm 45 near the insertion opening 47 in the 8, and the rear end is fixed to the arm holding cylinder 46, so that the spring 49 is wound around the arm 45. A bridge member 50 is provided, and an engagement member 51 protruding from the rear end of the arm 45 is connected to the bridge member 50.
It faces the notch 50a.

A can lid holder 44 is fixed to the tip of the arm 45, and the can lid holder 44 has a dish shape as shown in FIG. 7, and has a recess 52 into which the can lid is fitted. A magnet body 53 is embedded in the center of this recess 52 , and the can lid pushed out by the pushing tool 25 is fitted into the recess 52 of the can lid holder 44 .
At the same time, the peripheral edge portion 54
The curled part B of the can lid A is engaged with the can lid A.

With reference to FIGS. 8 and 10, the pedestal member 30
The lower cylindrical part 30a is fitted into the vertical hole 29 of the collar member 28, and a swinging piece 56 is provided which is fixed by a key 55 so as to move integrally with the lower cylindrical part 30a. A connecting member 58 whose tip is pivotally connected via an attached pin 57 is provided, and a mounting shaft 59 is attached to the frame 3.
The cylinder 61 is attached to the bracket 60 attached through the
The opening 6 at the end of the vertical hole 64 formed in the rod 63 of the piston 62 fitted into the cylinder 61
5, insert the other end of the connecting rod 66 whose one end is screwed into the connecting member 58, and insert the fitting ring 6 which is screwed onto the rod end.
The retracted position of the connecting rod 66 is regulated through the connecting rod 7.

Further, an actuating piece 69 whose end is fixed to the fitting ring 67 with a screw 68 is provided, and a shaft end 69a at the tip of the actuating piece 69 is connected to an acting part 70a of an electromagnetic switching valve 70 fixed to the frame 3. The cylinder 33 is actuated to move the operating shaft 32 up and down, and the arm 45 is raised or lowered via the link 34, lever 38, screw 37, shaft 36, and support member 35. let

The can lid fitting mechanism 7, as shown in FIG.
A cylinder 71 is provided which is supported by a support piece 6 at the upper end of a support column 5 erected on a frame 3.
1 is inserted in the vertical direction and can be raised and lowered by a piston 72, and a piston 7 in a cylinder 74 whose lower part is fixed to the upper end of this cylindrical tube member 73.
A plurality of expanding claws 78, 78, .
Slanted portion 79 is fixed to the lower end of 6 and acts on the lower outer periphery.
An operating member 79 is provided, and the expansion claws 78, 78 . ... are expanded in the radial direction, and the pushing claw portions 78b of the expanding claws 78, 78... are formed so as to push out and fit the inside of the can lid, and a magnet 80 is embedded in the actuating member 79. However, the lower surface of this magnet body 80 is exposed. 81 is a spring for contraction.

As shown in FIG. 2, roller conveyors 82 and 82 are provided on both sides of the upper surface of the machine base 1, respectively, extending in the longitudinal direction.
A transport path 83 is formed by these roller conveyors 82, 82, and the can body is slightly raised in correspondence with the can lid fitting mechanism 7 and the can lid delivery mechanism 8, and the top of the can body is A can mounting table 84 is mounted on the roller conveyor of the conveyance path 83, with the plate part E tilted so that the opening near one corner where the can lid A is fitted is positioned slightly higher than the other triangular corner parts. 82,82
It is placed in between.

As shown in FIG. 13, the can body lifting mechanism 85 using the can lid placing stand 84 is a frame member 86 vertically installed on the machine stand 1.
A cylinder 87 is fixed inside the cylinder 87, and a can mounting table 84 is fixed to a movable body 90 attached to the upper end of a rod 89 whose lower end is fixed to a piston 88 inside the cylinder 87.

Further, body fasteners 91, 91 are provided at predetermined positions on both sides of the conveyance path 83, and act to tighten the can body D of the can body C from both sides, and furthermore, the can body C is positioned at a predetermined position where the can lid A is fitted. An actuated positioning push member 92 is provided at a diagonal position with respect to one positioning member 93 provided on the frame 3.

Furthermore, it also contacts the front end of the can body being transferred on the conveyance path 83 and operates the can body lifting mechanism 85 that raises the can mounting table 84 and allows the can body C with the can lid fitted thereto to pass through. A stopper 94 is provided that is movable downward from the surface of the conveyance path 83.

A bracket 96 is attached to the frame 3 with an impact member 95 made of a bolt that can be freely engaged with the swing piece 56 so as to regulate the horizontal rotation angle of the arm 45 of the can lid delivery mechanism 8.
(see FIGS. 8 and 10), and the rotation of the arm 45 about its axis is controlled by the bridge member 5.
When the engagement member 51 of 0 is engaged with the edge of the engagement tool 97 fixed to the frame 3, the rotational state is maintained;
When the locking member 51 is separated from the locking tool 97, that is, when the can lid holder 44 of the arm 45 moves in the direction of the can lid fitting mechanism 7, the spring 49 releases elasticity in the unwinding direction and the arm 45 about the axis to make the can lid holder 44 horizontal.

The device of the present invention is constructed as described above, and the metal can lid fitting device equipped with the device of the present invention has a curled portion B around the opening of the top plate portion E of the can body C as follows. Fit the metal can lid.

First, a large number of can lids A, A, etc. are loaded from the starting end 11 of the meandering supply path 10 of the can lid supplying mechanism 4, and at the terminal end 12, one can lid A is inserted as shown in FIGS. As shown in FIG. 6, it is held by side edge locking portions 14a, upper edge locking portions 15a, and lower edge locking portions 16a.

Next, the can is transferred on the conveyance path 83 and placed on the can mounting table 84.
When the lower end of the can body on the forward side in the traveling direction of the can body placed on the can body hits the stopper 94, the can body lifting mechanism 85 is activated to raise the can body together with the can mounting table 84 and hold it at a predetermined height.

On the other hand, as shown in FIG. 7, the can lid holder 44 at the tip of the arm 45 of the can lid delivery mechanism 8 is vertically opposed to the can lid held by the can lid pushing mechanism 13. When the cylinder 20 is actuated and the actuating piece 22 enters between the rollers 15e and 16e, the upper swinging member 15 and the lower swinging member 16 swing in opposite directions to release the holding of the can lid. At the same time, the cylinder 24 is operated to push the can lid 25 forward, and the can lid 1 is fitted into the recess 52 of the can lid holder 44 and held by the magnet 53.

Eventually, the can lid delivery mechanism 8 operates in a timed manner, and the cylinder 61 transfers the rod 63 and the connecting rod 66.
is extended, the swinging piece 56 is rotated in the direction of the arrow, and at the same time the pedestal member 30 is rotated (FIGS. 9 and 10).
(see figure). When the swinging piece 56 hits the impact member 95, the rotation angle of the arm 45 is regulated, and the rotation angle of the arm 45 is regulated.
The can lid holder 44 at the tip is located directly below the can lid fitting mechanism 7.

During such rotation of the arm 45, the engaging member 5 facing the notch 50a of the piece member 50 at the rear end of the arm holding cylinder 46
1 is released from the edge of the locking device 97, the arm 45 rotates around the axis due to the unwinding force of the spring 49, and the can lid holder 44 becomes horizontal and is directly below the can lid fitting mechanism 7. Located in

Next, the operation of the cylinder 61 simultaneously advances the actuating piece 69 through the fitting ring 67, and the actuating end 69
a, the electromagnetic switching valve 70 is operated, the piston rod 33A of the cylinder 33 is moved downward, and the operating shaft 32 is lowered.

This downward movement of the actuating shaft 32 pushes the lever 38 downward against the elasticity of the compression spring 42 through the link 34 and the threaded shaft 40, and rotates the support member 35 of the arm 45 about the shaft 36. arm 45
The can lid holder 44 at the tip of the can lid holder 44 is lifted, and the can lid held by the can lid holder 44 is held by the fitting magnet 80 of the operating member 79 of the can lid fitting machine 7.

Next, the piston rod 33A of the cylinder 33 is moved upward via the electromagnetic switching valve 70 in a timed manner to raise the operating shaft 32, and the arm 45 is lowered to a horizontal position, and the cylinder 61 is actuated to open the connecting member 58. The swinging piece 56 is moved backward to return to its original state, and the arm 45 supported by the pedestal member 30 is moved to its original position to return to its original state.

During this time, the cylinder tube member 73 is lowered by the operation of the cylinder 71 of the can lid fitting mechanism 7, and the can lid A held by the operating member 79 is fitted into the opening of the top plate E of the can body C. When the lifting rod 76 is lowered by the operation of 74, the operating inclined portions 79a, 79a
The expansion claws 78, 78, 78 are opened and expanded in the radial direction, and the can lid is fitted and fixed for sealing, as shown in FIG.

In this case, the can mounting table 84 is inclined, and the opening of the top plate E of the can body C is located at a slightly higher position than the other three corners, and when the can lid A is fitted by the body fasteners 91, 91, both sides Since the body is tighter, it is possible to seal the can while eliminating air inside the can, and the positioning and pushing member 9
2 allows the opening of the can body C to be positioned at a predetermined position together with the positioning member 93.

The predetermined positioning of the can body C, the related operations of the can lid fitting mechanism 7, the can lid pushing mechanism 13, and the can lid delivery mechanism 8 are all performed in a timed manner according to the program.
They do not interfere with each other.

The can lid supply and delivery device according to the present invention performs delivery from the vertical supply path to the arm by the upper swinging member and the lower swinging member arcuately swinging in opposite directions, so that the operation is reliable, and The can lid can be supplied from the arm to the can lid fitting mechanism.

The present invention is a metal can lid fitting machine that automatically fits and fixes can lids fed through a supply path into the opening of the can lid one by one. It can automate sealing, save labor, and improve efficiency.

[Brief explanation of the drawing]

Fig. 1 is a front view of a metal lid fitting machine to which the device of the present invention is applied, Fig. 2 is a plan view thereof, and Fig. 3 shows the operational relationship between the can lid fitting machine and the main parts of the can lid delivery mechanism. 4 is a front view of the main parts of the can lid supply and delivery mechanism, FIG. 5 is a rear view of the same, FIG. 6 is an explanatory diagram of the operation of the can lid supply and delivery mechanism, and FIG. 7 is an explanatory diagram of the operation of the can lid supply and delivery mechanism. Figure 8 is a sectional view of the main parts of the can lid supply and delivery mechanism, Figure 9 is a plan view of the main parts, and Figure 10 is the main part of the can lid supply and delivery mechanism.
11 is an explanatory diagram of the main part of the arm rotation mechanism of the can lid delivery mechanism, FIG. 12 is a sectional view of the main part of the can lid fitting mechanism, and FIG. 13 is a plan view of the main part of the can lid delivery mechanism. FIG. 14 is a cross-sectional view of a main part of the body lifting mechanism, and is a cross-sectional view showing a can lid fitted state. DESCRIPTION OF SYMBOLS 1... Machine base, 3... Frame, 4... Can lid supply mechanism, 7... Can lid fitting mechanism, 8... Can lid delivery mechanism, 10... Supply path, 11... Start end, 12... Terminal end, 13... Can lid extrusion mechanism, 15... Upper swinging member, 16... Lower swinging member, 15a... Upper edge locking part, 16a... Lower edge locking part, 28... Flange-shaped member ,
32... Operating shaft, 44... Can lid holder, 45...
Arm, 46...Arm holding tube, 49...Spring, 5
DESCRIPTION OF SYMBOLS 1... Engagement member, 53... Magnet, 56... Rocking piece, 58... Connection member, 61... Cylinder, 66
... Connecting rod, 78 ... Expanding claw, 79 ... Operating member, 82 ... Roller conveyor, 83 ... Conveyance path, 8
4... Can mounting table, 85... Can body lifting mechanism, 91...
...Body tightening tool, 92...Positioning push member, 93...
...Positioning member, 94...Stopper, 95...Abutment member, 97...Locking tool, A...Can lid, B...Curl part, C...Can body D...Can body, H...Top Itabe,
H...opening.

Claims (1)

[Claims] 1. A can lid supply mechanism having a circular opening at the end of a vertical supply path, with locking portions at the ends facing upward and downward opposite sides of the circular opening, and with the other end pivoted to the wall of the vertical supply path. An upper swinging member and a lower swinging member are provided to support the wall, and a roller is attached to the end of the center mounting piece of each of the upper swinging member and the lower swinging member on the rear side of the vertical supply channel wall, and a roller is installed between the rollers. a can lid pushing mechanism, comprising: an actuating piece that penetrates into the opening and swings the upper swinging member and the lower swinging member to allow the locking portion to freely expand and open; and further comprising a pushing tool that can freely protrude from the circular opening; and,
An arm equipped with a can lid holder at its tip, which corresponds to the terminal end of the vertical supply path and faces the can lid held by the can lid extrusion mechanism, is rotatable horizontally at a predetermined angle and rotatable around an axis. A can lid supply and delivery device for a metal can lid fitting machine, which comprises a can lid delivery mechanism that can freely lift a can lid holder.