JPS6224896A - Device for pressing empty can in vertical direction - Google Patents

Abstract

PURPOSE:To efficiently press an empty can from the vertical direction thereof by pressing the other end part of the empty can which is supported at one end to a stationary plate by movable plate then discharging the same from a discharge port. CONSTITUTION:The empty can 8 is discharged from a chuter 2 onto an empty can screening mechanism 14. A mechanism 20 for driving the movable plate operates to advance the movable plate 18 upon detection of the holding of the empty can in a pressable position. A flange part 11 of the empty can 8 is first crushed by the movable plate cooperatively with the stationary plate 16 and thereafter the empty can 8 is pressed. The movable plate 18 retreats upon completion of the pressing stroke, then the pressed empty can 8 is discharged downward from the discharge port 15 and is contained into an empty can containing box, etc. The empty can is thus efficiently pressed in the vertical direction thereof.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is used for collecting empty cans of canned products such as coffee, juice, beer, etc. This invention relates to a vertical pressing device for pressing empty cans.

"Prior Art" Conventionally, as an emptying press device for an empty can recovery machine, an empty can lateral press device has been used, which presses empty cans in a direction perpendicular to the longitudinal direction of the can, that is, in a lateral direction. However, the volume of empty cans after pressing is smaller when pressed using an empty can vertical pressing device that presses empty cans in their longitudinal direction, that is, in the vertical direction, than when pressed using an empty can horizontal pressing device. Since it is possible to collect a larger number of empty cans into an empty can collection box with the same volume than when using a horizontal can pressing device, a vertical empty can pressing device has recently been used. There is.

As an example of this type of empty can vertical press apparatus, the one described in Japanese Patent Application Laid-Open No. 51-55'l'77 will be described with reference to FIG.

In FIG. 3, the empty can vertical press device 1 has an empty color sorting mechanism 3 movably installed below the shooter 2.
A fixing plate 4 is attached to one side of this vacant color sorting mechanism 3 to the shooter 2.
A movable plate 5 is installed in the lower opening of the holder and is movable back and forth in opposition to the fixed plate 4. The movable plate 5 is moved forward and backward by a drive device 7 via a connecting rod 6, and the empty color sorting mechanism 3
Empty cans 8 discharged in step 1 are pressed between a fixed plate 4 and a movable plate 5 and are naturally discharged outside the machine.

``Problems to be Solved by the Invention'' However, such conventional empty can vertical pressing devices have a larger pressing stroke than empty can horizontal pressing devices, but they do There is no problem when the material is an aluminum alloy plate, but when the empty can is made of tin plate or steel plate, there is a problem in that a large press load is required to press the empty can.

Therefore, conventionally, as shown in FIG. 4, before the empty can 8 is vertically pressed by the empty can vertical press device 1,
After one side or opposing both sides of the body of the empty can 8 is dented by the horizontal push mechanism 9 (FIG. 4 shows a case in which one side of the body of the empty can 8 is dented), the empty can 8 is dented. The vertical press load is reduced by pressing in the vertical direction. However, this method had a problem in that a horizontal pushing mechanism 9 had to be separately provided in the empty can vertical press device 1.

The present invention has been made to solve the above-mentioned problems, and presses empty cans in the vertical direction with at least the same small vertical press load as when a horizontal pushing mechanism is provided, without providing a separate horizontal pushing mechanism. It is an object of the present invention to provide an empty can vertical press device that can press an empty can in a vertical direction.

"Means for Solving the Problems" In order to achieve the above object, the present inventor used an Amsler tester to change various crushing conditions to produce two steel plates.
An empty 50 gram can was subjected to a longitudinal crushing test. The main crushing conditions therein are shown in FIG. That is,
Fig. 5(a) shows the case where the empty can 8 is crushed vertically as it is, and Fig. 5(b) shows the case where the empty can 8 is crushed vertically by providing dents on opposite sides of the body of the empty can 8. In case, the fifth
In Figure (C), a round steel rod 12 is interposed between the compression ram 10 of the Amsler tester and the end of the empty can 8 so as to crush the flange portion 11 of the empty can 8, and the empty can 8 is held vertically. The crushing conditions for crushing in the direction are shown respectively. In the case of each crushing condition, the crushing load of the empty can 8 is such that the crushing mouth of the empty can 8 is approximately 20 seconds after starting crushing.
The crushing load reaches the maximum value before reaching , and after that, the crushing load decreases to a constant value regardless of the amount of crushing of the empty can 8, and the vertical crushing of the empty can 8 is completed. The measurement result of the crushing load is that in the case of Fig. 5(a), the maximum crushing load is 620 Ky,
Constant pressure manufacturing load 200-280 Ky, in case of Fig. 5(b), maximum crushing load 370 Kg, constant pressure manufacturing load 200 ~
In the case of 300Kg, Fig. 5 (C) (7), the maximum crushing load is 3
70Ks, constant pressure manufacturing load 150-28 (1g, maximum crushing load is 3 in both cases of Fig. 5 (b) and (C))
The smallest constant pressure manufacturing load is 70 K'J as shown in Figure 5 (a
>, (b), and (c) were found to be almost the same. In other words, in order to reduce the maximum vertical crushing load of an empty can, instead of providing ``recesses'' on opposite sides of the body of the empty can as in the past, it is almost the same to crush the flange of the empty can when the crushing starts. Therefore, in the present invention, one or both of the fixed plate 16 and the movable plate 18 of the empty can vertical press device 13 of the embodiment shown in FIGS. One or more protrusions 17 are provided on the side that engages with the end of the empty can 8, which can crush the 7 flange part 11 of the empty can 8 when starting to press the empty can 8.

7. As described above, if the protrusion 17 is provided on either or both of the fixed plate 16 and the movable plate 18, and the empty can 8 is pressed by the empty can vertical press device 13, the empty can vertical direction by the Amsler test machine is pressed. In the crushing test, the maximum crushing load in the longitudinal direction can be kept small, as in the case where the round steel bar 12 is interposed between the compression ram 10 and the end of the empty can 8 facing it.

“Example” An example of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a plan view of an embodiment of the blank hue direction press apparatus of the present invention, and FIG. 2 is a front view of FIG. 1 viewed from above.

In FIGS. 1-5, the same reference numbers indicate the same parts.

As shown in FIGS. 1 and 2, the empty color direction press device 13 holds the empty cans 8 discharged from the chute 2 in a pressable position, and performs empty color sorting to remove objects that cannot be pressed from the pressable position. A mechanism 14, which engages with one end of the empty can 8 to be pressed on one side of the empty color sorting mechanism 14 to support the empty can 8, and is pressed between the empty color sorting mechanism 14 and the empty can 8. A fixed plate 1 provided across a discharge port 15 for discharging empty cans 8 downward.
6 and is provided on the other side of the empty color sorting mechanism 14 facing the fixing plate 16, and can crush the 7 flange portion 11 of the empty can 8 on the end surface that engages with the other end of the empty can 8. A movable plate 18 that has a protrusion 17 and presses the empty can 8 vertically against the fixed plate 16, and a movable plate 18 that presses the empty can 8 in the vertical direction against the movable plate 18 and sends the pressed empty can 8 to the discharge port. It has a movable plate drive mechanism 20 that provides reciprocating motion for discharging the liquid downward from the movable plate 15 via the connecting rod 19.

On the other hand, it has an empty color holding part 23 on the opposite side to the weight part 22,
When an empty can 8 is ejected from the chute 2, the empty color holding section 23 holds the empty can 8 in a pressable position, and when an object such as a bottle or stone that is heavier than the empty can 8 and cannot be pressed is ejected from the chute 2, Vacant color sorting mechanism 14
is adjusted in advance so that it can rotate clockwise around a shaft 21 and discharge objects that cannot be pressed, such as bottles or stones, downward from the pressable position.

The movable plate drive mechanism 20 may be configured with a hydraulic or pneumatic cylinder that performs reciprocating motion, or may be configured to convert rotational motion of an electric motor or the like into linear reciprocating motion using a cam or crank mechanism, etc. .

In this embodiment, a case is shown in which one protrusion 17 is provided on the movable plate 18, but as described above, the fixed plate 16
One or more protrusions may be provided on either or both of the movable plates 18.

With the above configuration, when it is detected that the empty can 8 is discharged from the chute 2 onto the empty can sorting mechanism 14 and that the empty can 8 is held at a pressable position, the movable plate drive mechanism 20 is activated. , the movable plate 18 moves forward and works with the fixed plate 16 to first crush the flange portion 11 of the empty can 8, and then presses the empty can 8. When the pressing process is completed, the movable plate 18 retreats and presses the empty can 8. The empty cans 8 are discharged downward from the discharge port 15 and stored in an empty can collection box or the like.

"Effects of the Invention" As described above, the empty color directional pressing device of the present invention has the advantage that at the start of pressing, a By simply providing one or more protrusions so that the flanges of empty cans can be crushed by opposing each other, the maximum vertical crushing load required to press empty cans in the vertical direction can be suppressed to a minimum. This has the effect that the hue direction press device can be made smaller and lighter.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1 viewed from above, Figs. 3 and 4 are explanatory diagrams of the conventional technique, and Fig. 5 is It is an explanatory view of crushing conditions of the crushing test of an empty can. 2... Shooter, 8... Empty can, 13... Empty hue direction press device, 14... Empty color sorting mechanism, 15.
...Discharge port, 16...Fixing plate, 17...Protrusion, 1
8... Movable plate, 19... Connecting rod, 20... Movable plate drive mechanism, 21... Shaft, 22... Weight portion, 23...
・Empty color holding section. Patent applicant Shibaura Seisakusho Co., Ltd. Figure 1 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] a discharge port for discharging pressed empty cans; a fixing plate on one side of the discharge port that engages with one end of the pressed empty can to support the empty can; a movable plate that is provided on the other side across the discharge port and that engages with the other end of the empty can and presses the empty can vertically against the fixed plate; a movable plate drive mechanism that provides reciprocating motion to press and discharge the pressed empty can from the discharge port, and one or both of the fixed plate and the movable plate engage with each end of the empty can. A vertical press device for empty cans, characterized in that one or more protrusions are provided on the end face.