JPH0790903B2 - Inverted can feeder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a can supply device for supplying a can to a can making machine or the like in an inverted position, and more particularly to a can making machine or the like without giving a dent to the can body. Device that can be supplied to.

(Prior Art) In a can manufacturing line, a can is supplied to a necker that performs neck-in processing on a can body, a flanger that forms a flange, and a light tester that performs a leak test in a turret from a can supply path in an inverted state. Have gone through. As a conventional can supply device for that purpose, one having a structure as shown in FIGS. 5 and 6 is known. In the figure, reference numeral 20 denotes a can supply path frame which constitutes a can supply path 21 for transferring the can in a state of being inverted, and a can bottom side guide 22 and a can top side guide 23 which support both ends of the can at its lower end. Is provided.
The can bottom side guide 22 is composed of a can bottom side first guide 24 and a can bottom side second guide 25, and the can top side guide 23 is a can top side first guide 26 and a can top side second guide 27. Composed,
Lower ends of the can bottom first guide 24 and the can top first guide 26 extend to both sides of the turret 30 which rotates in a vertical plane.
Therefore, the turret 30 is formed to have a width narrower than the space between the side guides on both sides, and at least the side guides are located at both ends of the can c supplied through the side guides.
The inner part is supported by the width of 22 and 23 for conveyance.

(Problems to be Solved by the Invention) In the can feeder having the above structure, avoid impacting the can at all when the can is captured and transferred from the side guide to the pocket 31 of the turret 30. I can't. Although the impact has not been particularly serious in the conventional can manufacturing line, recently, the speed of the can manufacturing line and the thickness of the can body have become thinner, and along with this, the impact causes a dent in the can. And dents are generated, which causes problems such as buckling of the can body in the necking process and winding process, etc., which is a factor that hinders the speeding up of the can manufacturing line and the thinning of the can body. Has become. The effect is remarkable especially in the case of a thin-walled two-piece can (DI can) that is drawn and ironed. According to the experiment of the present inventor, the can body wall thickness is 0.
At 800 cpm (cans / min) of a 10 mm two-piece can, almost no dents or dents were found to cause problems in the can body, but when supplied at 1400 cpm, almost all the cans occurred.

The present invention is intended to eliminate the drawbacks of the conventional can supply device described above, and reduces the occurrence of dents and dents in the can body due to the impact when the can is captured by the turret from the side guides. An object of the present invention is to provide a can supply device for supplying a can in an inverted position to a can manufacturing machine or the like that can speed up the production line and reduce the thickness of the can body.

(Means for Solving Problems) As a result of various studies for solving the problems, especially DI
In the case of a can, it was found that the area near the bottom of the can was a little weak, and in the conventional feeder, the edge of the turret hits that part, so it was strongly impacted, and it became clear that dents were concentrated in that part. did. The present invention solves the above-mentioned problems by mitigating the impact on the portion based on the above findings, and has the following configuration.

That is, the inverted can feeding device of the present invention includes a turret that rotates in a vertical plane in which pockets for holding cylindrical cans are formed at equal intervals on a peripheral portion, and a can that is transferred in an inverted state and is supplied to the turret. In an inverted can feeder, which is provided with a supply channel and a side guide which is provided at an end of the can channel and contacts both ends of the can and guides the can from the can channel to the pocket of the turret, the turret is the A can bottom side which is arranged such that the side edge of the turret supports the rising part of the can body near the bottom of the can guided from the side guide, and which guides at least the lower end of the side guide. The side guide is provided with an auxiliary guide whose lower end extends to the rotation surface of the turret and contacts the can body at a position distant from the bottom end of the can to guide the can to the turret. When the tip cans auxiliary guide flank, characterized in that by forming a groove (effect) turret pockets passing fitting is captured, the can bottom side is guided to the turret pocket by the auxiliary guide. Since the tip of the auxiliary guide extends within the rotation of the turret and the side edge of the turret is located outwardly thereof, when the turret catches the can, the side edge thereof comes close to the bottom of the can. Therefore, the side edge of the turret can be prevented from hitting the weakest part of the can body, and the phenomenon of damaging the can body can be significantly reduced compared to the conventional case.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to Figs.

In the figure, 1 is a turret having pockets 2 for catching cans at equal pitches on its peripheral portion, which are arranged so as to be rotationally driven in a vertical plane, and supply the cans to a can making machine 18 such as a flanger in the next step. To do. The turret is arranged so that the side edge of the turret supports the rising part of the can body near the bottom of the can guided from the side guide described later, and the tip of an auxiliary guide described later is fitted to the turret. An auxiliary guide escape groove 3 for joining and passing is formed endlessly in the circumferential direction. Reference numeral 4 denotes a can supply path including a chute and a spiral guide for supplying a can to the turret 1 in an inverted state, and 5 denotes a can supply path frame therefor. At the lower end of the can supply path frame 5, side guides for guiding both ends of the can are provided. The side guide is
It is composed of a can bottom side guide 6 that guides the can bottom side of the can body and a can top side guide 7 that guides the can top side. The can bottom side guide 6 is a can bottom side first guide 8 and a can bottom side. It is formed with the second guide 9. The can top side guide 7 that guides the can top side is formed of a can top side first guide 10 and a can top side second guide 11. As shown in FIG. 1, the second guides 9 and 11 on the can top side and the can bottom side form a can guide surface concentric with the turret 1 from the end of the can supply path 4 along the outer periphery of the turret. To prevent the can from popping out of the pocket.

On the other hand, the can top side first guide 10 has a guide surface curved so that the lower end thereof matches the shortest turning radius of the circular arc surface of the pocket 2 and reaches the turret side portion. The lower end edge of No. 8 reaches only the vicinity of the outer peripheral edge of the turret 1, and is formed shorter than the first can top side guide. Then, an auxiliary guide 12 having a guide surface whose lower end extends into the rotation surface of the turret and is curved so as to match the shortest rotation radius of the arc surface of the pocket 2 is fixed inside the can bottom first guide 8. There is.

In this embodiment, the first can bottom side guide 8 and the second can bottom side guide 9 are integrally formed via a thin can bottom regulating portion 13 that guides and regulates the bottom of the can. The guide 10 and the second can top side guide 11 are also integrally formed via a thin can top restriction portion 14 that guides and controls the can top. Reference numeral 15 is a mounting bottle for fixing each of the guides to the can supply path frame 5.

The can supply device of the present embodiment is configured as described above, and the can c that is continuously transferred along the can supply path 4 such as a chute in the inverted position is turreted by the side guide at the end of the can supply path. 1 is guided along the rotation direction of the turret and is transferred into the rotation path of the pocket 2 of the turret, reaches the introduction surface of the pocket, and is moved to the arc portion of the pocket relative to the rotation of the turret and is captured and transferred to the arc portion. To be done. that time,
The can bottom side is guided by the can bottom side first guide 8 and the can bottom side second guide 9 up to the rotation position of the turret, but when it comes within the turning radius of the turret, the auxiliary guide 12 and the can bottom side second guide. Guided by the guide 9.

Since the tip of the auxiliary guide 12 extends within the turning radius of the turret 1, and the side edge of the turret is located near the outer bottom of the can, the side edge 16 of the turret when the can is captured by the turret 1 As shown in FIGS. 3 and 4, the can body rising portion near the bottom of the can is supported. Therefore, unlike the conventional case, the side edge of the turret does not hit the weakest part of the can barrel above the bottom of the can, and the phenomenon of damaging the can barrel is significantly reduced.

When the DI can barrel with the can body thickness reduced to 0.09 mm was supplied to the necking machine at 1400 cpm by the apparatus configured as described above, no can with dents or dents was generated. It was In addition, as a comparative example, when the above-described conventional feeding device was used, damage such as dents and dents was observed in most of the cans. As a result, it was confirmed that this device is very effective as a can supply device for increasing the speed and reducing the thickness of the can.

In the above embodiment, the auxiliary guide extending to the internal position of the turret is provided only on the first guide on the can bottom side, but it may be further provided on the first guide on the can top side if necessary. Further, the auxiliary guide does not necessarily have to be formed as a separate component from the side guide as in the above-described embodiment, and may be formed integrally with the side guide. Further, in the above embodiment, the first
Although the guide and the lower guide are integrally formed via the can bottom regulating portion or the can top regulating portion, they may be separately formed. Further, the turret is formed as a wide integral structure, but it is also possible to have a structure in which a plurality of thin turret discs are fixed to the turret shaft at intervals. The lower end of the auxiliary guide is fitted in the gap formed between the turret discs. Therefore, the auxiliary guide clearance groove described in the claims includes not only the groove formed concentrically in the wide turret but also the gap formed between the turret discs in the turret formed by combining the turret discs. Is.

(Effect) The present invention is configured as described above and has the following special effects.

When the turret catches a can, the turret can support the bottom of the can, and the side edges of the turret do not hit the weakest part of the can body as in the conventional case. It is possible to significantly reduce the occurrence of dents and dents on the body. As a result, the speed of the can manufacturing line can be increased and the thickness of the can body can be reduced.

[Brief description of drawings]

1 to 4 show an embodiment of a can supply device according to the present invention, FIG. 1 is a schematic side view thereof, and FIG. 2 is A- of FIG.
A sectional view, FIG. 3 is a sectional view taken along the line BB of FIG. 1, FIG. 4 is a sectional view taken along the line CC of FIG. 1, FIG. 5 is a schematic side view of a conventional example, and FIG. 6 is FIG. FIG. 1: Turret, 2: Pocket, 3: Auxiliary guide escape groove, 6: Can bottom side guide, 7: Can top side guide, 8: Can bottom first guide, 9: Can bottom second guide, 10 : Can top side first guide, 11: Can top side second guide, 12: Auxiliary guide

Claims (1)

[Claims] 1. A turret having pockets for holding cylindrical cans formed at equal intervals on its peripheral edge and rotating in a vertical plane, a can supply path for transferring the cans in an inverted position and supplying the cans to the turret.
In an inverted can supply device, which is provided at an end of the can supply path and is configured to contact both ends of the can and guide the can from the can supply path to a pocket of a turret, the turret is provided from the side guide. A can bottom side guide that is arranged so that the side edge of the turret supports the rising part of the can body near the bottom of the can that is guided, and that guides at least the lower end of the side guide. , A lower end extends to the rotation surface of the turret, and an auxiliary guide is provided at a position distant from the bottom end of the turret to contact the barrel of the can to guide the can to the turret, and the tip of the auxiliary guide is fitted to the turret. An inverted can feeding device, characterized in that an auxiliary guide escape groove is formed to pass through.