JP2895263B2 - Can lid feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can lid feeder which can be used as a can seamer for canned cans filled with beer, coffee, juice and the like using aluminum cans, iron cans and the like.

[0002]

2. Description of the Related Art Conventionally, various can lid supply devices for can seamers have been proposed. One example thereof will be described with reference to FIG.
Seamed turret 4 conveyed by can supply conveyor 3
Sent to. Reference numeral 5 denotes a can lid supply turret disposed in contact with the seaming turret 4, and a guide groove 5a similar to the guide groove 4a of the can 2 provided on the outer periphery of the seaming turret 4 is formed on the outer periphery. In the guide groove 5a, a can lid 7 is dropped from an upper can lid supply mechanism 6, and the dropped lid 7 is conveyed by the can supply conveyor 3 and is placed on the can 2 to be supplied to the seaming turret 4. Supplied to Thereafter, the can 2 and the lid 7 sent into the seaming turret 4 are wound by a seaming roll (not shown) disposed around the seaming turret 4,
The can 2 'thus completed is sent to the next step via the outlet turret 8.

However, in the can lid supply device having the above-mentioned structure, the can 2 is filled with the liquid in the filler 1, and the can 2 conveyed by the can supply conveyor 3 has no can lid yet, and the can 2 is operated at a considerably high speed. Due to the transport, liquid spills also occur on the can supply conveyor 3. In particular, at the entrance of the seaming turret 4 to which the can lid 7 is to be supplied, the can 2 is rotated by moving the can 2 onto a lifter (not shown) in a state where the can lid 7 is not completely placed on the can 2. To start,
The liquid spill here was sometimes a problem.

Therefore, as a solution to the liquid spill, a method described in Japanese Patent Application Laid-Open No. 1-245930 has been proposed. That is, as shown in FIG. 6, this apparatus uses a can-filled can in which the can 2 filled with a liquid by a filler is sent to a seaming turret 4 of a Cima via a can supply conveyor 3. 2 is characterized in that a can lid supply mechanism 10 for supplying the can lid 7 is disposed in the middle of the can supply conveyor 3 between the filler and the seamer, thereby solving the problem of liquid spill.

[0005]

However, in the above-mentioned conventional apparatus, since the can lid is placed in the middle of the straight can conveyor that passes from the can filler to the can seamer, spillage of the liquid filled in the can is reduced. Although it can be done, the problem remains that air remains in the space above the liquid level of the can. That is, the intrusion of air into the can during the filling step of the carbon dioxide beverage is a major cause of reducing the beverage flavor due to a chemical change due to oxygen contained in the residual air after the can is sealed. Therefore, at present, the nozzle emits carbon dioxide gas from above the open can to the mouth of the can in front of the can, in order to reduce air entrapment in the open space of the open can during running. It has been practiced to replace the residual air in the upper part of the can with carbon dioxide gas and cover it directly with a lid. However, even with this method, the lid rises due to vibration during transportation or the ripple of the liquid in the can after covering the can lid, and the phenomenon of re-substitution of carbon dioxide and air in the can is seen, completely preventing the incorporation of air It was difficult.

[0006] From the above, according to the present invention, an inert gas such as carbon dioxide gas or nitrogen gas is blown from above the can toward the can opening just before the can cover is put on the can in the can lid supply device.
Immediately after the can lid is placed over the can, the can lid is pressed down from above to the turret entrance of the Cima to provide a can lid supply device that can prevent the inert gas in the can from replacing air again. Things.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a can lid feeder in which a can lid feed mechanism is disposed in the middle of a can conveyor between a can filler and a can seamer. And a plurality of nozzles for horizontally discharging gas toward the opening of the can be provided beside the can conveyor near the can lid supply section, and further, a can lid is provided above the conveyor between the can lids. A mechanism that presses the lid of the can from above on the can conveyor up to the supply unit and the can seamer inlet, and an opposing turret that faces the seaming turret at the can inlet of the can seamer , wherein the mechanism that presses the can lid is on the can conveyor A guide bar that holds the can from above the lid, and supports the guide bar in parallel with the can conveyor so as not to move in the horizontal direction, and elastically presses the can that travels in the vertical direction from above It consists of a mechanism for supporting the guide bar so that bets can, vibrations during transport after capped the can
The lid rises due to the surge of liquid in the can and the charcoal in the can
Acid gas and air that prevent re-displacement
In, it is an unit for which a problem solution. Ma
The present invention also relates to a can conveyor between a can filler and a can seamer.
In a can lid feeder with a can lid feed mechanism in the middle of the
Above the conveyor between the can filler and the can lid feeder.
A nozzle for discharging active gas is provided, and a can lid supply unit is provided.
Level the gas horizontally into the can opening next to the nearby can conveyor
A plurality of nozzles for discharging are provided,
Hold the can lid from above, above the can conveyor to the inlet
And a seaming turret at the can inlet of the can Cima
A mechanism for holding the lid of the can , comprising an opposing turret, is disposed in contact with the upper side of the lid of the can on the can conveyor between the can lid feeder and the can seamer, and is an endless type driven at the same speed as the can. A running belt, wherein the horizontal axis of the pulley of the running belt is elastically supported so that a downward pressing force is applied to the can via a bearing, and after the can is covered with a lid,
The lid lifts up due to vibration during transport or undulation of the liquid in the can
So that the carbon dioxide and air inside the can prevent re-displacement.
Those with composed, it is an unit for which a problem solution. Further, the present invention relates to a method in which a can filler
Cover supply with a can cover supply mechanism in the middle of the can conveyor
In the apparatus, the conveyor between the can filler and the can lid supply section
A nozzle for discharging an inert gas is provided above the
At the side of the can conveyor near the can lid supply section,
Multiple nozzles that discharge the gas horizontally, and
The can lid is placed above the can conveyor to the feeding section and the can sea inlet.
And a seaming tap at the can inlet of the can Cima
Equipped with an opposing turret facing the turret , press the lid of the can with gas, and transport it after covering the can
The lid rises due to the vibration of
Make sure that the carbon dioxide and air in the
But that is for a means for this problem solution.

[0008]

The carbon dioxide gas is released from the downward nozzle provided immediately before the can lid supply section, and the air on the liquid level in the can is replaced with the carbon dioxide gas, and the horizontal nozzle is used at the position where the can lid covers the can. Cover the can with a blow-out of inert gas and blow off the air near the head of the can. Thereafter, the can is transported to the Cima turret while the can lid is held down by the guide bar. In addition, as a mechanism for holding the can lid, in addition to the above, a mechanism that travels while holding the can lid with a belt running at the same speed as the can and sends it to the turret of the seamer, or a fine pressure chamber is formed on the top of the can lid Then, it is possible to adopt a mechanism or the like that feeds the can lid to the Cima turret while holding the can lid. The position of the can covered with the can lid is corrected by the turret opposite to the turret of the seamer, and the can is fixed to the correct position of the seamer. Next, the can is raised by the Cima can elevating mechanism, and the can lid is wound and sealed by the upper can lid winding mechanism.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of a can lid feeder according to the present invention; FIG.

(First Embodiment) A can 2 filled with a beverage liquid by a can filler not shown in FIG. 1 is sent by a can conveyor 3 in a direction indicated by an arrow from the lower left of the figure. The can conveyor 3 is made up of a guide on the lower surface and side surfaces of the can and a hook aptiene having a function of pushing the can at a constant pitch. A vertical nozzle 12 that blows carbon dioxide gas to the can 2 is provided above the can conveyor 3 that travels straight.
, A horizontal nozzle 13 is provided. Can lid supply mechanism 6
Then, the can lid guide plate 9, one by one according to the number and timing of the cans in which the can lid 7 is running by a separator not shown,
9a, and is carried over the head of the can 2, which is advanced by a can lid supply claw 5b attached to the tip of the can lid supply turret 5, after which the can lid is cut from the cut end of the can lid guide plate 9, 9a. Drop and cover can 2.

Next, the relative position between the can 2 and the lid 7 during the operation will be described. In the can lid supply section, the traveling speed of the can 2 and the can guide groove 5a when the can lid supply turret 5 rotates.
And the peripheral speed of the pitch circle at the center of the semicircular hole is adjusted so as to be the same speed, and when the can running on the can conveyor 3 approaches the turret 5, the can 2 enters the turret guide groove 5a. 5 and the phase of the can conveyor 3 are matched. The tooth tip of the turret 5 is machined into a cycloid curve so that the advancing can 2 enters and exits the guide groove 5a of the turret without interference at the tooth tip. When the can 2 enters the guide groove 5a of the turret, the can lid 7 falls off the can lid guides 9 and 9a and falls on the can 2 as described above. The arrow A in FIG. 1 indicates the position where the can lid 7 covers the can 2.

Next, a description will be given of a can lid holding mechanism for holding the lid over the can. Reference numerals 15 and 16 denote can lid holding guides, 17 supports the can lid holding guides 15 and 16, and a fixed side support of a holding spring 18. Are fixed support plates, and these constitute a can lid holding mechanism.
The seaming turret 4 for winding the can lid has a seaming roll (not shown) above the turret 4, and rotates with the turret 4 while rotating the can lid of the can held by the seaming turret 4. And tighten. 1
Reference numeral 4 denotes an opposing turret that rotates at the same speed in the opposite direction to the seaming turret 4, and the guide groove 14a of the opposing turret 14 and the guide groove 4a of the seaming turret 4 are set so that the phases always face correctly. . 8
The outlet turret has a guide groove 8a for the can 2, and the can 2 sent out from the outlet turret 8 is sent out to the next step by the can sending-out conveyor 21. The above-mentioned can lid supply turret 5, can lid supply mechanism 6, seaming turret 4, opposing turret 14, outlet turret 8, and hook-up chain of the can conveyor 3 are driven by the same power source to achieve the speed of can movement. The phases of the pocket for the can and the guide groove for the can are all matched.

Next, the operation of the can lid supply device having the above-described mechanism will be described. The cans 2 are transported by the can supply conveyor 3 at equal intervals. In a filer (not shown), a can 2 filled with a beverage and not yet covered is sent by a can conveyor 3 and passes under a vertical nozzle 12. The air above the liquid surface is replaced with carbon dioxide gas. The can lid 7 supplied from the can lid supply mechanism 6 is sequentially pushed on the can lid guide plates 9 and 9a by the supply claws 5b of the can lid turret 5, and is put on the can at the position of arrow A in FIG. In the vicinity of the position A, the carbon dioxide gas is blown out horizontally from the horizontal nozzle 13 to blow out the air around the head of the can 2, thereby preventing the carbon dioxide gas in the can 2 from being replaced with air. As soon as the can lid 7 is put on the can 2, the can lid holding guides 15, 16 press the lid 7 from above the lid 7 of the can 2 and keep the can 2 until just before the seaming turret 4.
Is sent. Next, the position of the can 2 is corrected by the opposing turret 14, the can 2 is correctly placed on the seaming turret 4, lifted up, and the can lid is closed by seaming.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. Note that, in the second embodiment, all of the components other than the mechanism for holding down the can lid after covering the can lid over the can are shown in FIG.
Is the same as the first embodiment shown in FIG. Therefore, the description of the second embodiment is limited to the can lid holding portion. In FIG. 2, the position indicated by arrow A in the figure is the position where the can lid 7 is put on the can 2 and is the same as the position indicated by arrow A in FIG. Reference numeral 9 denotes a can lid guide. Reference numeral 17 denotes a fixed support plate as in the first embodiment. The support plate 17 supports a can lid holding mechanism. Reference numeral 23 denotes a belt pulley on which a belt 24 is hung. The belt 24 is driven so as to run at the same speed as the can in the direction of the arrow, and the shaft of the belt pulley 23 is attached to a support bracket 25, which is suspended by a bolt 26 on the support plate 17. I have. The bolt 26 is fixedly attached to the support fitting 25, and is fitted with a hole formed in the support plate 17 with the support plate 17. The bolt 26 moves upward when the support fitting 25 is pushed upward by the can. It is configured to be able to escape. The support plate 1 is provided with the bolt 26 as a central axis.
A holding spring 18 is mounted between the support 7 and the support fitting 25.

Next, the operation of the second embodiment having the above-described mechanism will be described. The can lid 7 covers the can 2 at the position of arrow A in FIG.
Go under. The belt 24 receives the pressing force of the pressing spring 18 and presses the can lid 7. Further, since the belt 24 is rotated in the same direction as the traveling speed of the can 2, there is no relative sliding with the can lid 7, and the belt 24 keeps pushing the can lid 7 and reaches the seaming turret 4. Thereafter, the can lid is tightened in the same manner as in the first embodiment.

(Third Embodiment) A third embodiment is shown in FIGS.
This will be described with reference to FIG. The third embodiment is the same as the first embodiment shown in FIG. 1 except for the mechanism for pressing the can lid after the can lid is put on the can. Therefore, the description of the third embodiment is limited to the can lid holding portion. The position indicated by arrow A in FIG. 3 is the position where the can lid 7 is put on the can 2 and is the same as the position indicated by arrow A in FIG. 28
Is a gas manifold for forming a small pressure on the upper portion of the can lid, and this gas manifold 28 has a can lid holding function. Reference numeral 17 denotes a fixed support plate as in the first embodiment. The support plate 17 supports a gas manifold 28 as a can lid holding mechanism. Reference numeral 27 denotes a gas supply pipe to the manifold 28, which is fixed to the support plate 17. Reference numeral 29 denotes a fine hole for injecting gas from the manifold 28. The gap T between the manifold 28 and the can lid is determined by the support plate 17 and the spacer 30 so that the gap T is 0.1 to 0.5 mm. . The gas injected from the manifold is
The above inert gas may be used, but ordinary clean air is economical. The X section (FIG. 4) in FIG.
The arrangement of the pores 29 is shown, and a plurality of pores are arranged in a grid pattern.

In the third embodiment, the can lid covers the can at the arrow A, and thereafter the can lid is pressed by the air jetted from the manifold 28. In addition, manifold 28
Since the gap T between the can lid 7 and the can lid 7 is small, a pressure chamber is formed between the can lid 7 and the manifold 28, thereby preventing the can lid from rising.

[0018]

As described in detail above, in the present invention,
Since the can filled with the liquid is run on the linear traveling conveyor at a constant speed, the loss of the liquid in the can can be eliminated. In addition, the air on the liquid surface of the can is replaced with carbon dioxide before the lid is covered, and the lid is pressed down and sent to the seamer to prevent the carbon dioxide gas in the can and air from being replaced by the lift of the lid. Can be. As a result, it is possible to reduce the variation in the content of the beverage and to reduce the oxygen which impairs the flavor in the beverage as much as possible, thereby achieving excellent effects such as stabilizing the quality of the canned beverage.

[Brief description of the drawings]

FIG. 1 is a perspective view of a can lid feeding device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a can lid holding mechanism according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a can lid holding mechanism according to a third embodiment of the present invention.

FIG. 4 is a sectional view taken along line XX in FIG.

FIG. 5 is a perspective view of a conventional can lid supply device.

FIG. 6 is a perspective view showing the whole of a conventional can lid supply device.

[Explanation of symbols]

 2 Can 3 Can Conveyor 4 Seaming Turret 6 Can Lid Supply Mechanism 7 Can Lid 12 Vertical Nozzle 13 Horizontal Nozzle 14 Opposite Turret 15, 16 Can Holding Guide 17 Support Plate 18 Press Spring 23 Pulley 24 Belt 25 Support Metal 28 Manifold 29 Pore

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65B 31/00-31/10 B67B 3/064

Claims (3)

(57) [Claims] 1. A can lid feeding device having a can lid feeding mechanism disposed in the middle of a can conveyor between a can filler and a can seamer, wherein an inert gas is provided above the conveyor between the can filler and the can lid feeding section. And a plurality of nozzles for horizontally discharging gas toward the opening of the can beside the can conveyor near the can lid supply section, and further, a can conveyor between the can lid supply section and the can seamer inlet. A mechanism for pressing the lid of the can from above, and an opposing turret facing the seaming turret at the can inlet of the can seamer , holding the lid of the can
The mechanism that presses the can on the can conveyor from the lid
The guide bar and the guide bar in parallel with the can
While supporting not to move in the horizontal direction,
To be able to elastically hold the running can from above
It consists of a mechanism that supports the guide bar, and covers the can with a lid
The lid is lifted due to vibration during transportation or the undulation of liquid in the can
Go up and prevent carbon dioxide and air in the can from being replaced
Can lid feeder, characterized in that the the like. 2. A can conveyor between a can filler and a can seamer.
In a can lid feeder with a can lid feed mechanism in the middle of the
Above the conveyor between the can filler and the can lid feeder.
A nozzle for discharging active gas is provided, and a can lid supply unit is provided.
Level the gas horizontally into the can opening next to the nearby can conveyor
A plurality of nozzles for discharging are provided,
Hold the can lid from above, above the can conveyor to the inlet
And a seaming turret at the can inlet of the can Cima
A mechanism for holding the lid of the can , comprising an opposing turret, is disposed in contact with the upper side of the lid of the can on the can conveyor between the can lid feeder and the can seamer, and is an endless type driven at the same speed as the can. A running belt, wherein the horizontal axis of the pulley of the running belt is elastically supported so that a downward pressing force is applied to the can via a bearing, and after the can is covered with a lid,
The lid lifts up due to vibration during transport or undulation of the liquid in the can
So that the carbon dioxide and air inside the can prevent re-displacement.
A can lid supply device , characterized in that: 3. A can conveyor between a can filler and a can seamer.
In a can lid feeder with a can lid feed mechanism in the middle of the
Above the conveyor between the can filler and the can lid feeder.
A nozzle for discharging active gas is provided, and a can lid supply unit is provided.
Level the gas horizontally into the can opening next to the nearby can conveyor
A plurality of nozzles that emit provided, and the can lid supply unit to the al and forceps
Hold the can lid from above, above the can conveyor to the inlet
And a seaming turret at the can inlet of the can Cima
Equipped with opposing turrets , press the lid of the can with gas, and cover the can with vibrations and cans during transportation.
The lid rises due to the ripples in the liquid inside, and the carbon dioxide
And air are prevented from being replaced.
Can lid supply device to.