JP3000457B1 - Compression processing equipment for empty cans, etc. - Google Patents

Abstract

Abstract: [PROBLEMS] By devising the shape of a press roller,
Provided is a compression processing apparatus for an empty can or the like, in which the outer diameter of the press roller is reduced and the motor is downsized, whereby the apparatus is downsized as a whole. Each press roller (R) has, for example, a press part (P) directly responsible for a crushing action, a receiving part (C) for receiving a can end (Aa) of a work to be sent from above, and a main part by hooking the work. And a hook portion F leading downward to
The opposing press rollers R have a substantially symmetrical shape. The squeezing action of the press roller R is started at the side body Ab of the workpiece.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compression processing apparatus for crushing empty cans and the like in order to reduce the volume of empty cans such as empty cans and empty bottles.

[0002]

BACKGROUND OF THE INVENTION As a flow of effective use of resources, attempts have been made to recycle empty cans and the like. In this reuse, it is naturally necessary to collect used empty cans and the like, but in this collection, it is preferable to reduce the volume of the empty cans and the like in view of transportation costs and the like. For this reason, there has been a device that crushes an empty can or the like to reduce the volume.
All of them are large in size, suitable for being installed in a specific customer attraction facility, etc., and the range of use was limited. However, in practice, collection of empty cans and the like is carried out at each vending machine for beverages and at each retail store where these are installed , and these occupy a large amount of the total cans and the like at which they are collected. That is the current situation . However, each of these vending machines
If you look at the amount of individual empty cans at each retail store, it is not necessarily that much, so until you install a compression processing device such as a large empty can at each vending machine or each retail store. Has not been reached. Incidentally, as an attempt to collect at retail stores, baskets such as empty cans and storage containers for boxes are provided, and empty cans etc. are put in here, but these are installed from the viewpoint of environmental beautification rather than collection. Not just.

[0003] In this type of compression processing apparatus for empty cans and the like, empty cans and empty plastic bottles and other empty cans are vertically fed in the body direction, and two cans are inserted from the bottom or upper end of the cans. 2. Description of the Related Art Conventionally, there has been a compression processing apparatus such as an empty can that performs compression by sandwiching between pressing rollers facing each other. Among these compression processing apparatuses for empty cans and the like, for example, the shape of a press roller R 'is shown in FIG.
(A) As shown in (b), the conventional simple cylindrical shape is devised into a gear shape to facilitate the insertion of empty cans, as shown in FIG. 2 of JP-A-5-177395 and JP-A-9-10889.
No. 6 as shown in FIG.

However, if such a conventional compression processing apparatus for empty cans or the like is to be reduced in size so that it can be installed in a retail store or the like without a sense of incongruity, the components of the compression processing apparatus must of course be reduced in size. In this case, the following problem arises with the miniaturization, and it cannot be dealt with within the range of dimensional design of mere miniaturization. More specifically, as shown in FIG. 15 (c), when the diameter of the press roller R ', which is a part directly responsible for the pressing action, is reduced to a certain value or less in accordance with the miniaturization, the empty can A is charged. Even if the pair of press rollers R 'are devised in a gear shape as described above, slipping starts after the empty can A is sandwiched and the empty can A cannot be fed downward.

Further, the above-described conventional compression processing apparatus for empty cans and the like is basically for compressing the can end A of the empty can A by sandwiching it with a press roller R 'and making the whole substantially flat. Requires a large force to compress the portion of the can end Aa,
It is necessary to use a drive motor with a large force or to greatly reduce the rotation of the press roller R 'to reduce the processing speed.
From this point as well, it is difficult to reduce the size of the device to a certain size or less.

[0006]

[Technical problems to be developed] The present invention has been made in view of such a background. In a press accommodating apparatus for inserting empty cans and the like in the body direction, the shape of the press roller is improved by devising the shape of the press roller. It is possible to reduce the outer diameter of the press roller without slipping while holding the kind, and to reduce the force required for compression to reduce the size of the motor, thereby reducing the overall size of the device, This is an attempt to develop a compression processing apparatus for empty cans and the like that is the same size as a collection and storage container for empty cans and the like that has been conventionally placed at the level of a retail store.

[0007]

According to a first aspect of the present invention, there is provided a compression processing apparatus for empty cans and the like, in which an object to be processed is moved along a body direction of a roller unit having a pair of press rollers arranged opposite to each other. In the device to crush the object to be processed by the pair of press rollers,
The hardness of the press roller is such that the workpiece is made of steel.
In the case of an empty can, the side trunk is crushed flat, but the end of the can is flat.
The pressing roller is set to have a hardness such that it deforms itself without being crushed , and the crushing action of the press roller is started at the side body of the workpiece.

According to a second aspect of the present invention, in addition to the requirements of the first aspect, the opposing press rollers have a substantially symmetrical shape, and each press roller has the crushing action. , A receiving portion for receiving a can end portion of the object to be processed sent from above, and a hook portion for hooking the object to be guided mainly downward. It is.

A third aspect of the present invention provides a compression processing apparatus for empty cans and the like, in addition to the features of the first and second aspects, wherein the roller unit is provided in a plurality of stages.

[0010] Furthermore, the compression processing apparatus for empty cans and the like according to claim 4 is characterized in that, in addition to the requirements of claim 3, the plurality of roller units have the same shape. is there.

According to a fifth aspect of the present invention, in addition to the requirements of the second, third and fourth aspects of the present invention, the compression processing apparatus for empty cans and the like is provided between the receiving sections when the receiving sections of the opposed press rollers face each other. The distance is set to be 50 to 80% or less of the distance between the rotation axes of the press roller.

Further, in the apparatus for compressing empty cans and the like according to claim 6, in addition to the requirements as set forth in claim 1, 2 , 3 or 4 , the press unit is provided in an upper lid of a box for storing empty cans. It is characterized by being provided.

[0013] Still further encoding processor empty cans according to claim 7, wherein, in addition to the requirements of the claims 3, 4, 5 or 6, wherein the roller unit is made provided two-stage, whereas these roller units A drive motor is provided as a drive motor, and a drive gear is provided on the drive shaft, and a gear is also provided on the rotation shaft of the press roller. The drive gears of the drive motor are meshed with two gears on one of the right and left sides of these roller units, and the drive motor is driven to simultaneously drive and rotate the four press rollers. It is.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Compression processing device 1 for empty cans etc. according to the present invention
The press unit 3 having an upper roller unit 5 and a lower roller unit 6 is provided on an upper lid 21 in a storage box 2. In the present embodiment, the apparatus in which the press unit 3 is provided in the storage box 2 as described above is a compression processing apparatus such as an empty can of the present invention. This includes the case where only the press unit 3 is used, and in this case, the press unit 3 substantially constitutes the compression processing apparatus for empty cans and the like according to the present invention.

First, the storage box 2 will be described. The storage box 2 has substantially the same form as a conventionally known box that stores an empty can A installed on the side of the vending machine H for soft drinks or the like, and has a vertically long, substantially rectangular parallelepiped container that is open at the top. An upper lid 21 is provided on the upper part of the main body 20. On the front side of the upper lid 21, there is provided an input cylinder 22 extending upward for charging an empty can A as a processing object.
It is provided facing the inside. Note that a magnet is provided on the side of the container body 20 so that the magnet is attached to the side of the vending machine H for soft drinks or the like so as not to be blown off by wind or the like in an empty state.

Next, the press unit 3 will be described.
The press unit 3 is supported and fixedly installed by the support frame 4 fixed to the upper lid 21 of the storage box 2, and has an upper part for first pressing the empty can A charged from the charging cylinder 22. A roller unit 5;
It comprises a lower roller unit 6 for pulling down the empty can A subjected to the primary press by the upper roller unit 5 and further performing a secondary press, and a common drive motor 7 for driving these. Become. In the present embodiment, the upper roller unit 5 and the lower roller unit 6 have the same configuration.

The upper roller unit 5 will be described. The upper roller unit 5 includes, as central members, a first press roller 51A driven by the drive motor 7 and a second press roller 51B to which rotation is transmitted by the first press roller 51A. In the following description, a press roller R will be described in a case where the press roller of the upper roller unit 5 and the lower roller unit 6 is not particularly limited. The first press roller 51 </ b> A and the second press roller 51 </ b> B are pivotally mounted on the support frame 4 fixedly installed on the upper lid 21 of the storage box 2.
A and 52B support the two of them in a freely rotatable manner.
Gears 53A,
53B is provided. And the drive gear 7 of the drive motor 7
a is meshed with the gear 53A of the first press roller 51A, the gears 53A and 53B of the first press roller 51A and the second press roller 51B are meshed, and the first press roller 51A and the second press roller 51B are mutually Reverse rotation.

The shapes of the first press roller 51A and the second press roller 51B will be described. First press roller 5
1A and the second press roller 51B have a symmetrical shape as shown in FIGS. 5 and 6, and include a press part P, a receiving part C,
And a hook portion F. As a feature of the present invention, the length of the receiving portion C is such that the hook portion F abuts on a height position avoiding the can end Aa of the empty can A as shown in FIG. The material of the first press roller 51A and the second press roller 51B is made of rubber, and the hardness of the rubber is set to such a value that when a certain force is applied, the rubber is deformed to release the force. . Therefore, the force is released to the can end Aa of the empty can A such as a steel can having relatively high strength, and the other vicinity of the center of the empty can A is crushed positively.

The lower roller unit 6 has the same configuration as the upper roller unit 5 as described above, and has the same rubber-made first press roller 61A as the upper roller unit 5. Second press roller 6
1B, each supporting frame 4
The two rotating shafts 62A and 62B are rotatably supported side by side. Further, gears 63A,
63B, the drive gear 7a of the drive motor 7 and the gear 63A of the first press roller 61A mesh with each other, and the first press roller 61A and the second press roller 61A
B gears 63A and 63B are meshed.

As a feature of the present invention, the interval between the lower roller unit 6 and the upper roller unit 5 is set to be small. This allows the upper roller unit 5
, The empty can A sent out by the lower roller unit 6 is easily pulled in. In addition, the discharge portion between the press rollers of the upper roller unit 5 as described above,
The draw-in portion between the press rollers of the lower roller unit 6 can be installed close to each other because the diameter of the press roller R of the apparatus of the present invention is small, and therefore, the upper roller unit 5 and the lower roller unit of the present invention. 6 has a large degree of freedom in setting the interval with the distance from the reference numeral 6. Further, by changing the distance between the upper roller unit 5 and the lower roller unit 6, it is possible to compress a container having a strong restoring force such as a PET bottle into a shape that is difficult to restore. As shown in FIGS. 7 and 8, the positions of the first press rollers 51A and 61A and the second press rollers 51B and 61B of the upper roller unit 5 and the lower roller unit 6 are the same, respectively. When the press parts P of the upper roller unit 5 are close to each other, the press parts P of the lower roller unit 6 are also close to each other. A manual switch 8 of the drive motor 7 is provided on the front surface of the upper lid 21 of the storage box 2.

As a feature of the present invention, as shown in FIG. 6, when the receiving portion C of the press roller R faces each other, the distance D1 between the receiving portions is equal to the distance D2 between the rotating shafts of the press roller R. On the other hand, it is set to 50 to 80% or less. That is, by adopting a configuration in which the portion of the receiving portion C of the press roller R is narrowed in this way, the diameter of the press roller R is reduced, the distance D2 between the press rollers R is reduced, and the overall size of the press unit 3 is reduced. , While still receiving the empty can A.

The compression processing apparatus 1 for empty cans and the like according to the present invention has the above-described specific form, and this operation mode will be described below. (1) The primary press switch is turned on to drive the drive motor 7. The rotation of the drive gear 7a of the drive motor 7 causes the upper roller unit 5 to rotate.
And the first press roller 51 of the lower roller unit 6
A, 61A.
A, the rotation of 61A is the second press roller 51B, respectively.
It is transmitted to 61B by gears 53B and 63B. In the state where the compression processing device 1 such as an empty can is driven as described above, the empty can A
From the upper charging cylinder 22 in a vertical posture. The can end Aa of the empty can A comes into contact with the first press roller 51A and the second press roller 51B of the upper roller unit 5. At this time, the first press roller 51A and the second press roller 51B
When pressed against the press section P, the sheet temporarily stops at that position, stays on the press roller R, and falls from the end of the press section P to the position of the receiving section C. Then, the soft side body portion Ab near the center of the empty can A is sandwiched by the hook portions F of the first press roller 51A and the second press roller 51B, is pulled downward as it is, and is crushed by the press portion P. Since the crushed portion is mainly a soft central portion other than the can end portion Aa, it can be crushed with a light force. The crushing of the central portion also deforms the can end portion Aa so as to be curved.

(2) Pulling In the empty can A pressed by the upper roller unit 5,
While being received by the receiving portion C of the lower roller unit 6, it is immediately caught by the hook portion F and drawn between the first press roller 61A and the second press roller 61B.

(3) Secondary Press The can A drawn into the space between the first press roller 61A and the second press roller 61B is pressed by the press P at a relatively soft place other than the can end Aa. The empty can A after the secondary press is dropped as it is and the storage box 2
Is housed in the container body 20. Since the empty cans A are crushed in the storage box 2, an extremely large number of empty cans A can be stored as compared with a case where the empty cans A are not crushed at all.

The press portion P of the press roller R is an empty can A
If the empty can A is a thin and soft aluminum can, etc., it will be crushed flat as it is when
In the case of a hard steel can, the rubber of the press roller R is deformed and does not completely crush into a flat plate as long as the can end Aa is curved.

Incidentally, the specific structure of the compression processing apparatus 1 for empty cans and the like according to the present embodiment described above is that of a prototype machine. More detailed numerical data shows that the drive motor 7 has a torque of 500 kg / cm. Using a small silent motor. The size of the press roller R is 75 mm in diameter L.
The arc length N of the pressing portion is 53 mm (see FIG. 6), and as an example, NBR (acrylonitrile
Butadiene rubber). The arc length L of the press section is 53 mm, and the dimensions can be changed variously.
It is necessary to set the dimension so as to be shorter than the length of the body side Ab in the body direction excluding a, and not to crush the rear end Aa of the rear that passes last. Various 200-5
The experimental result of the crushing time of a 00 ml aluminum or steel beverage can was 8.55 seconds on average. In experiments conducted by the present applicant, when a beverage can made of aluminum or steel is crushed into a flat plate almost entirely in a vertical position, a maximum of 950 can be obtained.
Although a force of kg is required, according to the compression processing apparatus 1 such as an empty can of the present embodiment, it was possible to crush with a force of up to 500 kg. The capacity of the empty can A crushed by the compression processing apparatus 1 such as an empty can according to the present embodiment is reduced to about one third.

[0027]

Other Embodiments The basic embodiment of the present invention is as described above. However, at the time of provision to an actual market, the following mechanism is appropriately added or the basic structure is modified. It is possible. For example, as shown in FIG. 9, the safety lid 10 can be provided in consideration of safety at the time of inserting an empty can or the like so that a hand cannot be put through the insertion port 22a. The safety lid 10 is configured such that the upper lid 10a and the lower lid 10b are opened and closed in conjunction with a link or a chain, and when the upper lid 10a is open as shown in FIG. The lower lid 10b is closed,
As shown in FIG. 9B, the lower lid 10b is opened when the upper lid 10a is closed. In such a configuration, the lower lid 10b is closed when the empty can A is put in, so that it is not possible to put a hand in the back and it is safe.
When a is closed, the lower lid 10b is opened, and the empty can A is dropped into the press unit 3.

The driving of the drive motor 7 can be automatically started and stopped by detecting an empty can A falling from the charging cylinder 22. FIG. 10 shows an embodiment in which an input detection switch 11 using an opposed transmission type infrared sensor or the like and a compression end detection switch 12 are provided. When an empty can or the like is inserted, the insertion detection switch 11 detects the empty can and transmits an ON signal to drive the drive motor 7. On the other hand, the compression end detecting switch 12 detects an empty can and transmits an ON signal first, and then transmits an OFF signal when the empty can falls and is no longer detected. At this time, the driving of the driving motor 7 is controlled to be stopped. When the empty cans are stopped halfway, the switch is manually operated, for example, the press roller R is rotated in the reverse direction to take it out.

Considering a case where a non-compressible material such as a stone or an iron block is thrown in and the drive motor 7 is locked, when the surface temperature of the drive motor 7 exceeds the surface temperature during normal operation, the drive motor 7 is driven by a thermal relay. It is possible to stop the drive of the motor 7 and automatically recover the temperature when the temperature drops.

The distance between the upper roller unit 5 and the lower roller unit 6 may be adjustable. Upper roller unit 5 and lower roller unit 6
Is adjustable, it is possible to crush a highly resilient container such as a PET bottle with difficulty in restoring. A transparent material such as a PET bottle and a non-transparent material such as a steel can can be detected and determined by an optical switch or the like, and the distance between the upper roller unit 5 and the lower roller unit 6 can be automatically adjusted. is there.

The shape of the press roller R can be implemented in various shapes in addition to the shape shown in the basic embodiment. For example, the press roller R shown in FIG.
1 shows an embodiment in which one press roller R is provided with three hook portions F, three press portions P, and three receiving portions C.

FIG. 11 (b) shows an embodiment in which the hook portion F of the press roller R is shaped so that it can be hooked to the left and right. If F is damaged, it can be used as usual without replacement by turning it over.

FIG. 12A shows an embodiment in which a non-slip tooth Pa is provided for a press portion P of a press roller R. FIG.
This is an embodiment in which meshing teeth Pb are provided. In the case of the press roller R having the meshing teeth Pb, the shape of the opposing press roller R is not strictly symmetrical in a strict sense, but since such a shape looks symmetrically in a schematic view, , Of the present invention.

FIGS. 13 (a) and 13 (b) show an embodiment in which the press section P of the press roller R is not formed in a shape along an arc but the distance between the press sections of the press roller R is different. It is. FIG. 13 (a) shows an embodiment in which the distance between the press sections gradually increases, and FIG. 13 (b) shows an embodiment in which the distance between the press sections gradually decreases. is there.

Further, the compression processing apparatus for empty cans and the like of the present invention is not necessarily limited to loading empty cans and the like vertically from above to below. For example, as shown in FIG. It is also possible to adopt an embodiment in which the press roller R is disposed obliquely and the empty can A is charged obliquely. In this case, depending on the shape of the accommodation box, a larger empty can accommodation space may be obtained.

The compression processing apparatus for empty cans and the like according to the present invention may be provided with a mechanism that not only crushes and collects the empty can A, for example, but also returns coins and the like according to the collected amount. I do not care.

FIG. 15 is a cross-sectional view showing an embodiment in which the press roller R is driven by the shaft-in motor 13. The rotational force of the drive motor 71 is set to the internal teeth provided inside the outer cylinder 13A. The gear is transmitted to the outer cylinder 13
A is rotated, and the press roller fixed to the outer cylinder 13A is rotated. The shaft in motor 13 may be provided for each press roller R, or the other remaining press rollers R may be driven by the press roller R provided with one or two shaft in motors 13. Good.

[0038]

According to the first aspect of the present invention, the pressing operation of the press roller R is started from the side body Ab of the object to be processed. A crush is performed and the pressing is performed toward the can end. Therefore, it can be crushed with relatively weak force,
Without greatly reducing the rotation speed of the press roller R,
The drive motor 7 can be reduced in size. Also press roller
R is the can end Aa when the object to be treated is a steel can,
Formed of a material having a hardness itself is deformed without crush push
Forcefully press hard parts such as steel cans.
Press Uniform without crushing empty cans etc.
To prevent the unit 3 from stopping or malfunctioning.
The drive motor 7 also requires a small torque.

According to the compression processing apparatus for empty cans and the like according to the second aspect, the hard portion of the can end Aa, such as the empty can A, which is put in, is received in the receiving portion C, and crushed from the soft portion near the center. Can be performed. In addition, can end A
a, the workpiece is pulled down by the hook F and the receiving section C is not compressed, so that the workpiece slips in a state of being sandwiched by the press roller R and moves downward. It doesn't have to fall.

According to the third aspect of the present invention, since the roller unit is provided in a plurality of stages, a portion which could not be pressed by the first-stage press roller R is pressed by the second-stage press roller R. Alternatively, by pressing the same portion several times, reliable compression can be performed.

According to the fourth aspect of the present invention, since the roller units of the plurality of stages have the same shape, the parts are shared and the manufacturing cost is reduced.

According to the fifth aspect of the present invention, the distance between the receiving portions when the receiving portions C of the opposing press rollers R face each other is determined by the distance between the rotating shafts of the press rollers R. Because it is set at 50 to 80% or less of the distance,
The press portion P of the press roller R can be formed in a thin shape, and the receiving width of an object to be processed such as an empty can can be made larger than that of the substantially circular press roller R having the same diameter. As a result, it is possible to implement the press roller R with a small diameter.

According to the compression processing apparatus for empty cans and the like according to the sixth aspect, the press unit is provided in the upper lid 21 of the storage box 2 for empty cans and the like, so that the stored workpiece can be easily taken out. . By placing the upper lid 21 on another empty container, it becomes possible to use it as a compression processing device for empty cans and the like.

According to the compression processing apparatus for empty cans, etc., the four press rollers R are driven to rotate by driving one drive motor 7, so that the press unit 3 is Can be made compact.
Incidentally, this is also because the shape of the press roller R allows the crushing of an empty can or the like with a relatively light force, and according to the present invention, the drive motor 7 can be reduced without requiring a large one. It is possible to drive the four press rollers R with one small drive motor 7.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an apparatus for compressing empty cans and the like according to the present invention.

FIG. 2 is a front view showing a press unit.

FIG. 3 is a plan sectional view seen from the direction of arrows AA in the front view of FIG. 2;

FIG. 4 is a left side view of the same.

FIG. 5 is a vertical cross-sectional side view as seen from the direction of the arrows BB in the above.

FIG. 6 is an explanatory diagram showing a distance between receiving portions, a distance between axes, and the like.

FIG. 7 is an explanatory diagram showing the compressed state of the empty can in a stepwise manner.

FIG. 8 is an explanatory view showing the compressed state of the empty can in a stepwise manner.

FIG. 9 is an explanatory view showing another embodiment in which a safety lid is provided on a charging cylinder.

FIG. 10 is an explanatory diagram showing another embodiment in which a closing detection switch and a compression end switch are incorporated.

FIGS. 11A and 11B are explanatory views showing another embodiment in which a press portion and the like of a press roller are formed in three places, and FIG. 11B is an explanatory view showing another embodiment in which hook portions are formed on both sides; is there.

FIG. 12 is an explanatory view showing another embodiment in which anti-slip teeth are provided in a press portion of a press roller, and an explanatory view (b) showing another embodiment in which meshing teeth are provided.
It is.

FIG. 13 is an explanatory view (a) showing another embodiment in which the press portion of the press roller is formed so as to protrude outside the arc, and another embodiment in which the press portion is formed to enter the inside of the arc. It is explanatory drawing (b) which shows a form.

FIG. 14 is an explanatory view showing another embodiment in which the press unit is provided inclined with respect to the storage box.

FIG. 15 is a sectional view showing another embodiment in which a press roller is driven by a shaft-in motor.

FIG. 16 is an explanatory diagram showing various conventional press units.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Compression processing apparatus for empty cans, etc. 2 Storage box 3 Press unit 4 Support frame 5 Upper roller unit 6 Lower roller unit 7 Drive motor 7a Drive gear 8 Manual switch 10 Safety lid 10a Upper lid 10b Lower lid 11 Input detection switch 12 Compression End detection switch 13 Shaft-in motor 13A Outer cylinder 20 Container body 21 Upper lid 22 Input cylinder 22a Input port 51A First press roller 51B Second press roller 52A Rotating shaft 52B Rotating shaft 53A Gear 53B Gear 61A First press roller 61B Double press roller 62A Rotating shaft 62B Rotating shaft 63A Gear 63B Gear 71 Drive motor A Empty can Aa Can end Ab Side body C Receiving part D1 Distance between receiving parts D2 Distance between axes F Hook part H Vending machine L Diameter N Arc length P Press part Pa Tooth P Tooth R press roller meshing

Claims (7)

(57) [Claims] An apparatus for feeding an object to be processed along a body direction of a roller unit having a pair of press rollers arranged opposite to each other, and crushing the object to be processed by the pair of press rollers. In the press
The hardness of the roller is determined when the object to be processed is an empty steel can.
In this case, crush the side body flat, but crush the can end flat.
A compression processing apparatus for empty cans or the like, wherein the compression roller is set to have a hardness such that it deforms without itself, and the crushing action of the press roller is started at the side body of the workpiece. 2. The opposed press rollers have a substantially symmetrical shape, and each press roller has a press portion directly responsible for the crushing action and a receiving portion for receiving a can end of a workpiece sent from above. 2. A compression processing apparatus for empty cans or the like according to claim 1, further comprising a hook portion for hooking an object to be processed and guiding the object mainly downward. 3. The compression processing apparatus for an empty can or the like according to claim 1, wherein the roller unit is provided in a plurality of stages. 4. The compression processing apparatus for empty cans and the like according to claim 3, wherein the plurality of roller units have the same shape. 5. A distance between the receiving portions when the receiving portions of the opposing press rollers face each other is set to be 50 to 80% or less with respect to a distance between rotation axes of the press rollers. The compression processing apparatus for empty cans and the like according to claim 2, 3, or 4. Wherein said pressing unit according to claim 1, 2, 3, characterized in that provided in the upper lid in the storage box of the empty cans, the compression processing apparatus such as cans of 4 or 5, wherein. 7. The roller unit is provided in two stages, while a drive motor for driving these roller units is provided, a drive shaft is provided with a drive gear, and a rotation of the press roller is provided. Gears are also provided on the shafts, the gears of the press rollers constituting the roller unit are meshed with each other, and the drive gears of the drive motor are meshed with two gears on one of the left and right sides of these roller units, and the drive motor is 7. The compression processing apparatus for empty cans and the like according to claim 3, wherein the four press rollers are simultaneously driven to rotate by driving.