JPH0519196Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a crusher for empty cans.
It is a simple product that can be used for retail stores or home use.

[Conventional technology and issues]

Conventionally, there are various crushers for empty cans. A typical method is to crush empty cans by sandwiching them between a pair of large-diameter rollers, but this requires rollers with a relatively large diameter compared to the can diameter, and also ensures that the empty cans are crushed on both sides. It also required auxiliary means to fit between the rollers. There are also machines that use large presses to crush a large number of empty cans at once, but these are not suitable for large-scale commercial use and are not suitable for retail stores that only handle small quantities or for home use. Ta.

[Means to solve the problem]

The present invention solves the above problems and provides a crusher that can easily and reliably crush one can at a time by adopting a small and novel structure.

In other words, the empty can crusher according to the present invention is
A drive shaft is provided vertically in the rear half of a box-like support frame having openings on the upper and lower surfaces of the front end, and a plate-shaped eccentric cam is horizontally fixed to the middle part of this drive shaft, and a roller is mounted on the upper surface of this eccentric cam. The eccentric cam is horizontally provided, and at the bottom of the eccentric cam,
The push-shear has a push-shear head at the tip of the guide shaft and a cam abutment plate at the rear end.
The eccentric cam is positioned between the rear surface of the pusher head and the abutment plate so as to be movable back and forth, and the lower end of the pusher head is provided with a comb-shaped slit when viewed from the front, and a comb-shaped can holder that fits into the slit. is fixed to the bottom plate of the support frame so that its tip faces the middle of the opening on the bottom surface, and above the eccentric cam is a shutter that moves back and forth due to the revolution of the roller. It is characterized by the fact that it is placed so that you can face it.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

1 and 2 show a box-shaped support frame consisting of a front side plate, an upper plate, and a bottom plate, and openings are provided in the upper and lower surfaces of the front end thereof. is a drive bearing that is vertically installed in the rear half of the support frame with bearings 〓〓, 〓〓, and is connected to a geared motor disposed above via a coupling. is an eccentric cam fixed horizontally to the middle part of the drive shaft, and a roller is horizontally provided on the upper surface of the cam at a position slightly eccentric to the center of the cam plate. is a pusher for empty cans, and has two parallel guide shafts installed across the drive shaft,
The front end is equipped with a pusher head, and the rear end is equipped with a cam abutment plate that spans between both guide shafts, and the guide shaft can be slid back and forth using a bearing provided on the bottom plate of the support frame. It is provided. As shown in FIG. 2, four comb-shaped slits are provided at the lower end of the pusher head, and rollers are provided at the rear surface of the pusher head and the front surface of the contact plate, respectively. The eccentric cam is arranged between both rollers with a constant gap.

1 is a can holder that fits into the slit 19 of the pusher head, and as shown in the drawing, a member having a U-shaped cross section is fixed on the bottom plate with its tip facing halfway into the opening at the bottom. The amount of protrusion into the opening of this can holder is such that an empty can dropped from the upper opening will not fall, and the pusher head is fitted into this can holder and is moved by the rollers by the rotation of the eccentric cam. , to reciprocate back and forth.

The shutter is located above the pusher head, and as shown in Fig. 3, it has a large elongated hole in the center, into which the drive shaft fits, and four small elongated holes on the front, back, left, and right sides surrounding this hole. At the rear of the lower surface, there is a guide plate that is flat in the shape of an angle when viewed from the rear. This shutter is installed in the lower surface of the upper plate of the support frame through the elongated hole.
is supported so as to be movable back and forth by a flanged pin, and its tip protrudes to the x position shown by the two-dot chain line in Figures 1 and 4, that is, the position where the empty can does not fall from the opening, and is always in position. is located at approximately the same position as the front end surface of the pusher head.

In addition, a tension coil spring 21 is attached to the rear end of the shutter and a support pin provided in front of the upper plate, which keeps the shutter in an open position at all times, and the roller 12 is in contact with the front surface of the L-shaped guide plate 24 on the lower surface of the shutter at a fixed angle.

In addition, 〓〓 is a can guide provided on both inner surfaces of the opening, 〓〓 is a hopper guide provided at the top of the opening, and 〓〓 is a cover of the main body.

[Effect]

The opening/closing timings of the shutter and the pusher are set as shown in FIG. 6. That is, the position shown in Figure 1 is 0° in Figure 6.
The shutter is almost fully open (R position) and the pusher is also fully open (Y position). At this position, when an empty can is put into the opening and the motor is driven to rotate the eccentric cam, the shutter will be fully opened (R position) between 10° and 80° due to the action of the roller and guide plate, and then gradually open. It will be closed. During this time, the pusher remains fully open, and after the shutter is fully closed, it moves forward, and when it reaches 180 degrees, it fully closes (Z position) and completely crushes the empty can between it and the front plate. This state is 63°
(0.48 seconds), after which the pusher gradually retreats and returns to the open state.

One revolution of the eccentric cam causes the shutter and pusher to repeat the above-mentioned movements, so when the shutter opens, if you manually throw in an empty can, it will be crushed and the flattened empty can will be released through the opening in front of the can receiver. It naturally falls downward. Empty cans that fall can be removed by placing a bucket or the like at the bottom of the opening.

In the above process, if the can holder does not always protrude from the lower front of the pusher head, the empty cans introduced through the opening will fall before being crushed. On the other hand, in the present invention, since the can holder always faces halfway to the opening, the empty can is held, and since there is no hindrance to the forward movement of the pusher head, the empty can is completely crushed into a flat shape and then falls.

In addition, the rollers of the pusher in the above embodiment are for smooth sliding with the eccentric cam 11, but the reason why the two rollers are arranged offset from the center on the rear surface of the pusher head is to prevent the eccentric cam from rotating clockwise. This allows the pusher to move forward smoothly without applying any lateral force to the pusher, by first contacting and pressing the outer peripheral surface against the outer rollers, then moving to the center roller and moving forward. .

However, this roller is not particularly required, and it is not necessarily necessary to provide two eccentric rollers. The point is that the pusher can be moved back and forth easily and smoothly by the rotation of the eccentric cam.

Further, the mechanism for moving the shutter back and forth is not limited to the illustrated example, and may be operated using an appropriate cam, lever, or the like.

[Effect of idea]

As mentioned above, the present invention has a simple structure and is inexpensive, so it can be used in retail stores to crush empty cans each time they occur, or by putting empty cans accumulated one day at a time. . This process is so simple and safe that even children can handle it, and the crushing of one empty can is approx.
It takes 2.5 seconds and can be operated continuously, so even if you process 100 pieces, it doesn't take much time.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a central vertical sectional side view of the main part, FIG. 2 is a front view of FIG. 1 with the front plate removed, and FIG. 3 is a view of FIG. 1. A-A of
4 is a plan view showing the relationship between the shutter and the roller, FIG. 5 is a plan view showing the relationship between the eccentric cam and the pusher, and FIG. 6 is a timing chart of the shutter and the pusher. DESCRIPTION OF SYMBOLS 1... Support frame, 11... Eccentric cam, 12... Roller, 18... Pusher, 13... Guide shaft, 14... Pusher head, 19... Slit, 20... Can receiver, 21... Shutter, 24 …
...Guide plate, 26...Tension coil spring.

Claims (1)

[Scope of utility model registration request] A drive shaft is provided vertically in the rear half of a box-like support frame having openings on the upper and lower surfaces of the front end, and a plate-shaped eccentric cam is horizontally fixed to the middle part of this drive shaft, and a roller is mounted on the upper surface of this eccentric cam. The cam is eccentrically installed in a horizontal manner, and a pusher having a pusher head at the tip of the guide shaft and an abutment plate for the cam at the rear end is installed below the eccentric cam between the rear surface of the pusher head and the abutment plate. An eccentric cam is positioned so that it can move back and forth, and a comb-shaped slit is provided at the lower end of the pusher head when viewed from the front, and a comb-shaped can holder that fits into the slit has its tip facing up to the middle of the opening on the lower surface. The shutter is fixed to the bottom plate of the support frame as shown in FIG. An empty can crusher characterized in that a front surface of a guide plate is brought into contact with a rear surface of the roller, and a shutter is provided which moves back and forth as the roller revolves so that its tip faces halfway up the opening on the top surface.