JPH0721289U - Empty can crushing device - Google Patents

Abstract

(57) [Summary] [Purpose] The structure is simple and compact, safe and has few failures,
To provide an inexpensive can crushing device that is easy to clean. [Structure] Inside the box 2, a floor plate 5, a motor 10,
Ball screw 13 to which the rotational force of the motor 10 is transmitted
And a movable pressing body 14 fixed to a movable pressing plate 15 capable of reciprocating in the horizontal direction by engaging with the ball screw 13, and a fixed pressing portion main body 6. The movable pressing body is provided with a sensor 20 for detecting the initial position of the movable pressing plate. The fixed pressing portion main body is inserted into a fixing plate 7 which is one crushing surface of the empty can and a through hole 8 formed in the fixing plate, and a pressure sensitive element 9 protruding in the fixing plate surface direction.
It has and. One end of the pressure sensitive element 9 is fixed by a compression spring 22, and the pressure sensitive element 9 is pushed into the through hole 8 while crushing the lateral center portion of the empty can by the feeding pressure of the movable pressing plate 15. A stroke sensor 21 for detecting the position of the pressed pressure sensitive element 9 is provided in the through hole 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an empty can crushing device for compressing and reducing the volume of empty cans for promoting efficient resource reuse and environmental protection, and in particular, electrically crushes empty cans one by one. The present invention relates to a single-function empty can crushing device.

[0002]

[Prior art]

 As a conventional technique relating to a device for crushing empty cans such as beer cans and soft drink cans, various empty can processing devices have already been developed and put into practical use, for example, as described in JP-B-60-21830. Known technology is known.

In this conventional technique, a movable pressing plate and a fixed plate cooperate to crush an empty can. A pressing element that crushes the central part of the empty can is placed in a reciprocating movable pressing plate. This pusher crushes the center of the empty can first and then the movable pressing plate crushes the entire empty can.The empty can can be crushed with a relatively small crushing force. It is a thing.

As another conventional technique, for example, a technique described in Japanese Patent Laid-Open No. 57-79100 is known. In this conventional technology, a screw shaft is rotationally driven to relatively move a pair of pressing members toward and away from each other, and the empty can is crushed in the axial direction thereof. It uses a simple motor.

[0005]

[Problems to be solved by the device]

 The above-mentioned conventional device is large and expensive, and is easily inoperable due to canning or malfunction, and the residual liquid such as juse contaminates the machine part, causing the malfunction. There are many problems such as

For example, in the prior art described in Japanese Patent Publication No. 60-21830, a pusher for crushing the center of the empty can is provided so that the empty can can be crushed with a relatively small crushing force. However, since this pusher is provided in the pressing body mechanism that is capable of reciprocating toward the crushing surface of the empty can, the structure of the pressing body mechanism becomes complicated, and the weight of the pressing body mechanism is reduced. However, since the driving force for reciprocating the pressing body mechanism is obtained as a result, a hydraulic cylinder, an oil pump, and a control valve mechanism are required, and the device cannot be downsized. ing.

Further, according to this conventional technique, when a foreign object other than an empty can or the like that is not crushable is thrown in as a pressed body, the reciprocating movement of the pressing body mechanism is interrupted midway, and the pressing body is restored to its original state. Since the mechanism for returning to the position is not taken into consideration, there is a problem in that the device becomes inoperable and may lead to failure.

Further, in the prior art described in Japanese Patent Laid-Open No. 57-79100, a pair of pressing members holding an empty can are moved close to each other to crush the empty can, and then the pressing member is switched to a separating operation. For this reason, a limit switch that reverses the rotation of the motor is provided, but this limit switch is configured to always operate at a constant stroke position of the pressing member. Therefore, this conventional technique, like the device disclosed in Japanese Examined Patent Publication No. Sho 60-21830, interrupts the approaching / separating operation of the pair of pressing members midway when a hard material that cannot be crushed is inserted. However, in that case, there is a problem in that the device may become inoperable and lead to failure.

The object of the present invention is to solve the above-mentioned problems of the prior art, to limit the function of the device to a single function of crushing an empty can, to make the structure as simple and compact as possible, to be safe and to prevent failures. , To provide an inexpensive can crushing device that is easy to clean.

[0010]

[Means for Solving the Problems]

 According to the present invention, the above-mentioned object is to provide an electric motor capable of forward and reverse rotation, a ball screw which rotates in association with the rotation of the electric motor, and a movable pressing member configured to move forward and backward in the direction of a fixed plate facing the rotation of the ball screw. A plate, and a pressure sensitive element that is inserted into a through hole formed in the center of the fixed plate in a direction perpendicular to the fixed plate surface, the tip of which protrudes from the fixed plate surface and is supported by a fixed plate by a compression spring. When the stroke sensor that detects the forward movement limit of the movable pressing plate at the position where it is pushed in the fixed plate through hole of the pressure sensitive element and the stroke sensor are activated, the forward movement operation of the movable pressing plate is stopped, This is achieved by providing a control circuit for reversing the rotation of the electric motor capable of forward and reverse rotation to move the movable pressing plate backward, and an initial position detection sensor for detecting the backward stop of the movable pressing plate.

Further, the present invention provides, as a safety mechanism, a sliding door provided at an opening of the compression chamber, a push-type operation switch disposed at a position covered by the sliding door with the sliding door opened, and An indicator lamp arranged in the vicinity of the push-type operation switch, the device cannot be operated with the sliding door open, and when the sliding door is closed, the device can be operated. During the crushing operation of the empty can, the opening of the sliding door is locked by the push-type operation switch.

In addition to the above-mentioned configuration, the present invention has a door switch set to operate in a state in which the sliding door is completely closed in the vicinity of the opening of the compression chamber for the double and triple safety measures. If the door switch does not operate, the safety mechanism prevents the device from operating even if the push-type operation switch is pushed, the notch inside the sliding door, and the sliding door and the movable pressing plate. During operation of the movable pressing plate, a stopper provided between the stopper and the stopper pushes the stopper into a notch provided inside the sliding door to lock the opening of the sliding door. And is configured.

Further, the present invention is provided with a perforation hole in the floor plate of the compression chamber, and a tray under the floor plate for collecting the residual liquid spilled from the can due to the crushing operation, thereby facilitating cleaning. At the same time, it is designed to prevent the equipment from being contaminated by the residual liquid and prevent malfunction.

[0014]

In the present invention, since the protrusion (pressure sensitive element) that crushes the central portion of the side of the empty can is provided not on the movable pressing plate side but on the fixed plate side, the mechanism of the movable pressing plate can be simplified.

Further, according to the present invention, the protruding portion (pressure sensitive element) is supported on the fixed plate side by a compression spring, and the strength of the compression spring is set to such a strength as to crush the central portion of the side of the empty can, and After crushing the central part of the side of the empty can, the pressing force of the movable pressing plate exceeds the withstand pressure of the compression spring, and the forward movement of the movable pressing plate pushes the protruding part (pressure sensitive element) into the through hole of the fixed plate. Since it has a stroke sensor that operates at a position where the tip of the protrusion (pressure sensitive element) is flush with the fixed plate surface, the center of the side of the empty can is crushed. Both ends of the empty can can then be completely crushed by the movable pressing plate and the fixed plate.

Further, according to the present invention, when a hard foreign matter or the like that cannot be crushed by the device is set, the projecting portion (pressure sensitive element) is placed in the through hole of the fixing plate without crushing the object to be compressed. Since the stroke sensor is pushed in and the stroke sensor operates at a predetermined position, the forward movement operation of the movable pressing plate can be stopped and switched to the backward movement operation, so that it is possible to prevent such things from being overcompressed.

Further, according to the present invention, as a safety mechanism, when the sliding door of the compression chamber is opened, an operation switch is provided at a position hidden by the sliding door to operate the device in a state where the compression chamber is opened. The operation switch and the door switch are linked so that the device cannot operate unless the sliding door is completely closed, which is extremely safe. It is a thing.

Moreover, the present invention prevents the opening of the sliding door by protruding the button portion of the operation switch during the crushing operation of the device, and the double locking of the sliding door by the notch and the stopper inside the sliding door. Therefore, it is possible to prevent the risk that the sliding door is accidentally opened during operation.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an empty can crushing device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a vertical sectional view showing the structure of an embodiment of the present invention, FIG. 2 is a top view thereof, and FIG. 3 is a right side view thereof. 1 to 3, 2 is a box, 3 is an opening, 4 is a sliding door, 5 is a floor plate, 6 is a fixed pressing part body, 7 is a fixed plate, 8 is a through hole, 9 is a pressure sensitive element, and 10 is a model. , 11 is a belt, 12 is a pulley, 13 is a ball screw, 14 is a movable pressing body, 15 is a movable pressing plate, 16 is a compression chamber, 17 is a compression chamber floor plate, 18 is an operation switch, 19 is a control circuit section, Reference numeral 20 is an initial position detection sensor, 21 is a stroke sensor, 22 is a compression spring, and 23 is a support base.

As shown in FIGS. 1 to 3, an empty can crushing device according to an embodiment of the present invention includes a floor plate 5 installed inside the box body 2 at a height of several cm above the bottom surface of the box body 2. And a motor 10 as a power source installed on one side (A side) on the floor plate 5, and a rotational force of the motor 10 is transmitted via a belt 11 and a pulley 12 and held by a support 23. Installed on the other side (B side) on the floor plate 5, and the ball screw 13, the movable pressing body 14 which is engaged with the ball screw 13 by the rotation of the ball screw 13 and can reciprocate in the horizontal direction. And a fixed pressing portion main body 6.

At one end of the movable pressing body 14, a movable pressing plate 15 that is a surface that comes into contact with an empty can as a body to be compressed is fixed. The movable pressing body 14 is provided with a sensor 20 for detecting the initial position of the movable pressing plate 15 when the movable pressing body 14 horizontally reciprocates back and forth as the ball screw 13 rotates. .

The fixed pressing portion main body 6 is inserted into a fixed plate 7 which is one crushing surface of the empty can, a central portion of the fixed plate 7, and a through hole 8 formed in a direction perpendicular to the fixed plate surface, The pressure sensitive element 9 is provided so as to project in a direction perpendicular to the surface of the fixed plate. One end of the pressure sensitive element 9 is fixed by a compression spring 22 in the through hole 8 of the fixed pressing portion body 6 so as to protrude from the fixed plate 7 at all times. The pressure-sensitive element 9 is in the shape of a quadrangular prism, and one end of the pressure-sensitive element 9 is formed in an acute angle so that the center of the side of the empty can which is a vertically placed object to be compressed can be easily crushed. Has become. Then, the pressure sensitive element 9 is pushed into the through hole 8 of the fixed pressing portion main body 6 while crushing the central portion of the side of the empty can by the feeding pressure of the movable pressing plate 15 from the A side. A stroke sensor 21 for detecting the position of the pressed pressure sensor 9 is provided in the through hole 8.

A space sandwiched by the movable pressing plate 15 and the fixed plate 7 is a compression chamber 16, and the compression chamber 16 has a floor plate 17 provided with several perforated holes, for example, punching metal or the like. The drain pan is provided below the floor plate 17 to collect the residual liquid spilled as a residue when the empty can is crushed.

As shown in FIG. 2, an opening 3 for inserting and removing an empty can and a sliding door 4 for sliding the opening 3 in the horizontal direction for manually opening and closing the opening 3 are provided at the center of the front surface of the box 2. Has been. An operation switch 18 of the device is provided on the wall portion of the sliding door 4 which is concealed by the sliding door 4 on the door pocket side. A control circuit unit 19 is provided at the rear of the fixed pressing unit body 6 and the compression chamber 16.

FIG. 4 is a view for explaining the crushing process of the empty can in the embodiment of the present invention constructed as described above. Hereinafter, the crushing operation of the empty can will be described with reference to FIG. To do.

First, the empty can is set vertically in the compression chamber 16.

Next, the sliding door 4 is closed and the operation switch 18 is turned on. As a result, the motor 10 is driven to rotate the ball screw 13 via the belt 11 and the pulley 12, the movable pressing body 14 is extended in the horizontal direction, and the movable pressing plate 15 pushes the empty can. The empty can pushed by the movable pressing plate 15 hits the pressure sensitive element 9 projecting from the central portion of the lateral side of the fixed plate 7 on the opposite side, and the central portion is crushed. At this time, the upper ends of both ends of the empty can are pulled inward.

The movable pressing plate 15 further advances, and the empty can is sandwiched therebetween, and the pressure sensitive element 9 is pushed into the through hole 8 of the fixed pressing portion body 6.

Furthermore, the movable pressing plate 15 advances, and the semi-crushed empty can hits the fixed plate 7 to crush both end portions of the empty can. At this time, the pressure sensor 9 is pushed into the through hole 8 of the fixed pressing portion body 6 and the tip of the fixed plate 7 is flush with the surface of the fixed plate 7. push.

The operation of the stroke sensor 21 controls the motor 10 to rotate in the reverse direction, and the movable pressing plate 15 starts to return. At the same time, the pressure sensitive element 9 also projects from the fixed plate 7 by the force of the compression spring 22.

When the movable pressing plate 15 is further retracted and returns to the initial position, the initial position detection sensor 20 detects it and the rotation of the motor 10 is stopped.

FIG. 5 is a diagram for explaining an operation at the time of an abnormality such as a case where contents are contained instead of an empty can or a solid solid object is set in an embodiment of the present invention. Therefore, the operation at the time of abnormality will be described below with reference to FIG.

First, a can with the contents still contained, or a compressed object such as a hard solid is set vertically in the compression chamber 16.

Next, the sliding door 4 is closed and the operation switch 18 is turned on. As a result, the motor 10 is driven to rotate the ball screw 13 via the belt 11 and the pulley 12, the movable pressing body 14 is extended in the horizontal direction, and the movable pressing plate 15 pushes the compressed body. The object to be compressed pushed by the movable pressing plate 15 hits the pressure sensitive element 9 protruding from the central portion of the lateral side of the fixed plate 7 on the opposite side.

Although the movable pressing plate 15 further advances, the pressure sensitive element 9 is pushed into the through hole 8 of the fixed pressing portion main body 6 without crushing the body to be compressed.

'' Further, although the movable pressing plate 15 advances, the pressure sensitive element 9 is pushed into the through hole 8 of the fixed pressing portion main body 6 while the body to be compressed is not crushed. The tip end thereof becomes flush and the stroke sensor 21 is activated.

By the operation of the stroke sensor 21, the motor 10 is reversely rotated and the movable pressing plate 15 starts to return. At the same time, the pressure sensitive element 9 also projects from the fixed plate 7 by pushing back the uncrushed compressed body by the force of the compression spring 22.

'When the movable pressing plate 15 is further retracted and returns to the initial position, the initial position detection sensor 20 detects it and the rotation of the motor 10 is stopped.

According to the above-described embodiment of the present invention, if only the empty can is completely crushed and the other cans are filled with contents or a solid solid is set, Since the apparatus returns to the initial state and stops without being crushed, it is possible to prevent a failure such as the apparatus remaining stopped during the operation, or a failure due to this.

FIG. 6 is a view for explaining the configuration and operation of the first safety mechanism provided in the sliding door 4 provided in the opening 3 for taking in and out the empty can.

The illustrated safety mechanism is composed of an operation switch 18 and an indicator lamp. The operation switch 18 is a push-type switch, and when the pushed button portion is pushed into the switch, the operation of the device is turned off. From that state, push the button portion with a finger to project the button portion. The state is such that the operation of the device is turned on. The indicator lamp is provided near the operation switch 18 or at the button portion of the operation switch 18.

The push-type operation switch 18 is provided on the wall portion of the door pocket that is in surface contact with the sliding door 4 provided in the opening 3. As shown in FIG. 6A, the sliding door 4 is pulled to open the opening. When the switch 3 is open, the operation switch 18 is provided in a position so that it cannot be operated by being covered with the sliding door 4.

FIG. 6B shows a state in which an empty can or the like is put into the compression chamber 16 through the opening 3 and the sliding door 4 is closed. At this time, the operation switch 18 covered by the movement of the sliding door 4 is brought into an operable state. In this state, when the operator pushes the operation switch 18 as shown in FIG. 6 (c), the device becomes in the operation state and the indicator lamp lights up to start crushing the empty can, and at the same time as shown in FIG. 6 (d). As shown, the button portion projects, and the projecting portion blocks the moving path of the sliding door 4 and serves as a stopper of the sliding door 4. When the crushing operation of the empty can is completed and the movable pressing plate 15 returns to the original position, the operation of the sensor 20 stops the operation of the apparatus and the indicator lamp is turned off.

The operation switch 18 has a structure in which it is not pushed in even when it is pushed when the device is in an operating state (while the indicator lamp is lit).

After turning off the indicator lamp, as shown in FIGS. 6 (e) and 6 (f), when the operator pushes the button portion for pushing the operation switch 18 into the switch, the stopper of the sliding door 4 is pushed. Once the door is released, it becomes possible to open the sliding door 4, and if the sliding door 4 is opened. As shown in FIG. 6 (g), the state returns to the state of FIG. 6 (a).

Since one embodiment of the present invention is provided with the safety mechanism configured as described above, it is impossible to put the device in the operating state with the sliding door 4 of the opening 3 open. Also, during the crushing operation of the empty can, the opening of the sliding door 4 is locked by the button part of the push-type switch, and the opening of the sliding door 4 is possible after the operation of the device is finished, so that the operator can safely empty it. Cans can be taken in and out.

In one embodiment of the present invention, in addition to the safety device described with reference to FIG. 6, another safety mechanism can be added. This will be described below.

FIG. 7 is a diagram illustrating a configuration example of the second safety mechanism to be added, which prevents the sliding door of the opening from opening during the crushing operation. In FIG. 7, 70 is a door switch.

In FIG. 7, the door switch 70 is a switch that operates by contacting the sliding door 4 at the position where the sliding door 4 of the opening 3 is sealed. The circuit of the door switch 70 is set so that the operation switch 18 described with reference to FIG. 6 can be operated only when the door switch 70 is in the activated state.

FIG. 8 is a diagram illustrating a configuration example of the second safety mechanism to be added, which prevents the sliding door of the opening from opening during the crushing operation. In FIG. 8, 80 is a notch, 81 is a stopper, and 82 is a support.

In FIG. 8, the cut portion 80 is a portion provided inside the sliding door 4 and engaged with the stopper 81. The stopper 81 has a cylindrical shape and is supported by a supporting member 82 on a wall portion between the sliding door 4 and the movable pressing body 14.

FIG. 8A shows a state in which the sliding door 4 is open, and FIG. 8B shows a state in which the sliding door 4 is closed. When the sliding door 4 is closed, the position of the notch 80 of the sliding door 4 coincides with the position of the stopper 81. In this state, as shown in FIG. 8C, when the crushing operation is started, the movable pressing body 14 pushes the stopper 81 toward the sliding door 4 side and pushes the stopper 81 into the notch 80 of the sliding door. This locks the sliding door.

By adding the safety mechanism shown in FIGS. 7 and 8 described above to the safety mechanism shown in FIG. 6, one embodiment of the present invention can secure double or triple safety. Will be things.

In the above-described embodiment of the present invention, the movable pressing plate and the fixed plate are arranged on the left and right, and the movable pressing plate is pushed out in the horizontal direction to operate. The fixing plate may be arranged vertically or obliquely, and the opening of the compression chamber may be provided not on the side surface of the device but on the upper surface of the device.

As described above, according to the embodiment of the present invention, since the pressure sensitive element for crushing the central portion of the empty can is provided in the fixed pressing body, the structure of the movable pressing body can be simple and lightweight. Therefore, it is possible to crush the empty can with a crushing force smaller than that of the conventional device. In addition, according to the embodiment of the present invention, even when a foreign object other than an empty can that cannot be crushed is set, it is detected that the pressure sensor is pushed into the fixed pressing unit body to a predetermined position, and the motor is detected. Since the movable pressing plate is returned by rotating the device in the reverse direction, it is possible to prevent the device from being inoperable or malfunctioning.

In addition, in the embodiment of the present invention, since the bottom of the compression chamber is provided with the perforated floor plate and the residual liquid tray, it is easy to clean the device and the residual liquid corrodes the mechanical part. Therefore, it is possible to prevent the occurrence of troubles and the like.

Further, according to the embodiment of the present invention, the first safety mechanism makes it impossible to put the device into operation in the state where the sliding door at the opening is opened, and the crushing operation of the empty can is performed. Inside, the opening of the sliding door is locked by the button part of the push-type switch, and the opening of the sliding door is possible after the operation of the device is stopped, so that the operator can safely take in and out the empty can. Further, in the embodiment of the present invention, higher safety can be ensured by adding one or both of the second safety mechanism and the third safety mechanism to the first safety mechanism.

[0059]

[Effect of device]

 As described above, according to the present invention, it is possible to obtain a small-sized, safe, inexpensive, easy-to-clean and inexpensive empty can crushing device.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing the configuration of an embodiment of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a right side view of FIG.

FIG. 4 is a diagram illustrating a crushing process of an empty can according to an embodiment of the present invention.

FIG. 5 is a diagram for explaining an operation at the time of an abnormality such as a can containing the contents instead of an empty can, or a case where a hard solid substance is set.

FIG. 6 is a diagram illustrating a configuration of a first safety mechanism.

FIG. 7 is a diagram illustrating a configuration of a second safety mechanism.

FIG. 8 is a diagram illustrating a configuration of a third safety mechanism.

[Explanation of symbols]

 2 Box 3 Opening 4 Sliding Door 5 Floor Plate 6 Fixed Pressing Unit Main Body 7 Fixing Plate 8 Through Hole 9 Pressure Sensor 10 Motor 11 Belt 12 Pulley 13 Ball Screw 14 Movable Pressing Body 15 Movable Pressing Plate 16 Compression Chamber 17 Compression Chamber Floorboard 18 Operation Switch 19 Control Circuit Section 20 Initial Position Detection Sensor 21 Stroke Sensor 22 Compression Spring 23 Support Base 70 Door Switch 80 Notch Section 81 Stopper 82 Stopper Support Tool

Claims (6)

[Scope of utility model registration request] 1. An empty can crushing device, in which a movable pressing plate and a fixed plate cooperate to crush an empty can, an electric motor capable of forward and reverse rotation, a ball screw which rotates in association with rotation of the electric motor, and By the rotation of the ball screw, the movable pressing plate is configured to move forward and backward in the direction of the opposing fixed plate, and the distal end of the movable plate is inserted into the through hole formed at the center of the stationary plate in the direction perpendicular to the surface of the stationary plate. A pressure sensor that is supported by a fixed plate with a compression spring so as to project from a surface, a stroke sensor that detects the forward movement limit of the movable pressing plate at the position where the pressure plate is pushed into the fixed plate through hole, and An operation of the stroke sensor stops the forward movement of the movable pressing plate, reverses the rotation of the electric motor, and causes the movable pressing plate to move backward, and an initial position detection sensor for detecting the backward stopping of the movable pressing plate. Prepare for An empty can crushing device characterized in that 2. The compression spring for supporting the pressure sensitive element on the fixed plate,
With the forward movement of the movable pressing plate, the tip of the pressure-sensitive element is brought into contact with the center of the side of the empty can, which has the strength to receive the pressing force of the movable pressing plate and crush the center of the side of the can, and After crushing the lateral center of the empty can, the pressing force of the movable pressing plate exceeds the pressure resistance of the compression spring, and the pressure sensitive element is pushed into the through hole of the fixed plate by the forward movement of the movable pressing plate. The empty can crushing device according to claim 1, wherein 3. A push-type operation in a compression chamber and an empty can crushing device having an opening in the compression chamber, wherein the sliding door provided in the opening of the compression chamber is opened and is placed at a position covered by the sliding door. A safety device including a switch and an indicator lamp arranged in the vicinity of the push-type operation switch or in the button portion of the switch is provided, and the device cannot be operated with the sliding door open, An empty can crushing device, which can be operated to operate the device when the sliding door is closed, and the opening of the sliding door is locked by a push-type operation switch during the crushing operation. 4. A door switch that operates when the sliding door is completely closed is provided, and if the door switch is not operated, it is impossible to operate the device by pushing the push-type operation switch. The empty can crushing device according to claim 3. 5. A notch provided inside the sliding door and a stopper provided between the sliding door and the movable pressing plate pushes the stopper into the notch during operation of the movable pressing plate, and The empty can crushing device according to claim 3, wherein the opening is locked. 6. An empty can crushing device having a compression chamber for crushing an empty can, wherein a tray is provided in a floor plate of the compression chamber, and a tray for collecting the residual liquid spilled from the can by a crushing operation at a lower portion of the floor plate. An empty can crushing device comprising: