JPH0593687U - Empty can press machine - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an empty can pressing machine that can separate empty cans mixed with steel cans and aluminum cans, press them into blocks, and discharge them. [Composition] A selecting means is provided in the vicinity of the press machine main body, and a press chamber provided with a press plate capable of advancing and retracting in the press machine main body and a discharging means for discharging a plurality of empty cans biased by the press plate from the press chamber. And, on one side of the press chamber, the empty cans selected by the selecting means are guided to the press chamber, and when the empty cans are filled with a predetermined amount, the communication between the selecting means and the press chamber is shut off and the press is performed. A closing door that forms part of the room wall was provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an empty can press machine.

[0002]

[Prior art and its technical problem]

 In recent years, a large amount of canned beverages filled with juice, soft drinks, tea, coffee, beer, etc. have been consumed, and the amount of empty cans generated is also enormous. Conventionally, such empty cans have been discarded, but it is required to collect them and reuse them as materials in order to recycle them. As a countermeasure against this, a pressure machine is installed in the collection box to reduce the pressure, but it is not suitable for large-scale processing because each empty can is pressed individually. Moreover, since the pressed cans are separated one by one, it is inconvenient to handle them thereafter. Therefore, a press machine that biases a large number of empty cans into blocks is used.However, conventional press machines generally only have hydraulic press plates arranged in the press room so that they can move back and forth. there were. For this reason, it is necessary to operate the press machine by observing the amount of empty cans loaded and the steel cans and aluminum cans are pressed together.To avoid this, separate work in advance in a separate process. There is a problem that the processing cost becomes high because it has to be performed. The present invention was devised to solve the above-mentioned problems, and its purpose is to separate steel cans and aluminum cans into a block-shaped block by simply putting them together. However, the purpose is to provide a practical empty can press machine that can be discharged.

[0003]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is provided with a selecting means in the vicinity of the press machine body, and the press machine body is provided with a press chamber provided with a press plate that can move back and forth, and a plurality of empty cans biased by the press plate. Is provided to the press chamber, and at one side of the press chamber, the empty cans selected by the selecting device are guided to the press chamber, and when the empty cans are filled with a predetermined amount, the selecting device and the press are pressed. It is provided with a closing door that forms a part of the wall of the press chamber by blocking communication between the chambers. Further, the present invention is preferably such that an empty can amount sensor for detecting that a specified amount of empty cans has accumulated in the press chamber and stopping the operation of the sorting means, and a condition for the closing door to detect the press condition only when the closing door is closed. It has a sensor for operating the plate actuator and a sensor for detecting the completion of discharging by the discharging means and starting the operation of the sorting means.

[0004]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show an example of an empty can pressing machine according to the present invention. Reference numeral 1 denotes a main body frame, a press machine main body 3 is provided on the front side, a charging unit 2 is installed on the back upper side of the press machine main body 3, and a lower side of the charging unit 2 is biased to one side. A can stocker unit 4 is provided, and a hydraulic unit 6 is provided on the opposite side of the can stocker unit 4. First, the charging section 2 has a hopper-shaped charging port 20 for charging an aluminum can A or a steel can A ', and an empty can selection means 21 is provided at this charging port 20. The sorting means 21 may be of any type such as a magnetic sorting type, a weight sorting type that sorts by a specific gravity difference, or an electrical sorting type that sorts by a difference in electrostatic capacity. In this embodiment, a magnetic force selection type is adopted, and among them, a conveyor type having magnetism and a function of carrying empty cans is used. Although its structure is arbitrary, in this embodiment, a small pulley 212 and a large pulley 211 having a magnetic body surface are rotatably supported in a frame frame 210 fixed on the intermediate partition 10. A conveyor belt 213, on which blades 215 for accelerating the fall are arranged at predetermined intervals, is hung between the pulleys and rotated by a drive actuator (motor) 214. Below the sorting means 21 (on the loose side), as shown in FIGS. 1 and 3, the steel can A ′ sucked and conveyed by the large pulley 211 is separated from the large pulley 211 due to its own weight exceeding the suction force. By the way, the duct 216 guiding to the stocker unit 4 is fixed.

Next, in the press machine main body 3, a press chamber 32 is constituted by a box frame 30 having an open front surface and an opening / closing door 31 which is openably and closably attached to the box frame 30, and an actuator is provided in an upper frame. As a hydraulic cylinder 33, a press plate 34 that moves up and down in the press chamber 32 is fixed to the tip of the cylinder rod. An opening 300 is formed in a portion obliquely below the end of the large pulley 211 on the back surface of the box frame 30, and a closing door 35 is attached to the opening 300 via a hinge 350. The closing door 35 is connected to a piston rod of an actuator (hydraulic cylinder) 36 attached to the rear surface of the box frame 30, and is aligned with the rear surface of the box frame 30 by the operation of the hydraulic cylinder 36 as shown in FIG. It is designed so that it can be displaced from a tilted position to a diagonal position. Therefore, the closing door 35 constitutes the press chamber wall in the closed state. A frame-shaped guide 37 is attached to the back of the box frame in the displacement range of the closing door 35.

A receiving plate 38 is fixed to the bottom side of the press chamber 32, and a discharging means 5 for discharging the pressure-balanced empty can block B is provided in the vicinity of the receiving plate 38. The discharging means 5 also serves as a press plate on the fixed side. The discharging plate 5 is provided with a receiving plate 38 and a rolling wheel 50 that slides on the abutment 53 following the receiving plate 38, and an actuator having a piston rod connected thereto. (Hydraulic cylinder) 52, and an opening 301 is formed in the lower portion of the back surface of the box frame 30 to allow the discharge plate 51 to be attached and detached. One side of the open / close door 31 is connected to the box frame 30 by a hinge 310, and the other side of the open / close door 31 is engaged / disengaged with the box frame 30 by a locking mechanism 311. It is provided, and a sub-closing door 39 is attached thereto so as to be openable and closable as shown in FIGS. 1, 2 and 3. This sub charging door 39 is a can different from the can automatically filled in the press chamber (steel can A ′ in this embodiment) is separately charged into the press chamber 32 for pressing, or an arbitrary can is operated manually rather than automatically. Functioning as a charging part when charging and pressing.

The stocker unit 4 includes a holding frame 40 provided on the lower partition 11 and a container (container) 41 placed on the holding frame 40. As shown in FIG. 5, the hydraulic unit 6 includes an oil tank 60 and a hydraulic pump 61, and a discharge passage of the hydraulic pump 61 includes a first electromagnetic switching valve 62 for controlling the hydraulic cylinder 33 of the press plate 34. A second electromagnetic switching valve 63 for controlling the hydraulic cylinder 36 for the closing door and a third electromagnetic switching valve 64 for controlling the hydraulic cylinder 52 for the discharge plate are provided.

The solenoids SL1, SL2, SL3, SL4, SL5 of the first electromagnetic switching valve 62, the second electromagnetic switching valve 63 and the third electromagnetic switching valve 64 are electrically connected to the controller 7 on the frame side surface, respectively. In addition, the controller 7 is electrically connected to the input portion of the motor 214 for magnetic force conveyor. The controller 7 incorporates a manual operation circuit and an automatic operation circuit. As shown in FIG. 6, the signals from the respective sensors described later are processed and the solenoids SL1, SL2, SL3 are processed in a predetermined sequence. , SL4, SL5 and the motor 214 are started and stopped. First, the first sensor 8a to the third sensor 8c are for detecting the position of the press plate 34. Proximity switches or the like are used for these sensors, and they are attached to a bracket extending upward from the box frame 30 as shown in FIG. 4, and the controller 7 detects the position of the detection piece of the interlocking rod 340 connected to the press plate 34. Send a signal. The first sensor 8a is a press plate ascending end detection sensor, the second sensor 8b is an intermediate position detection sensor for detecting that an empty can is detected to have a predetermined thickness or less, and the third sensor 8c is a press plate descending sensor. This is an end detection sensor, and the controller 7 determines that the preparation for discharge is completed by receiving a signal from this sensor.

The fourth sensor 8d is an open / close door closing detection sensor for detecting the approach of the front door 31 and determining that pressing is possible. For example, a proximity sensor is used and is provided on the front side of the box frame 30. The fifth sensor 8e is a pair of empty cans detecting sensors provided on both sides of the box frame 30. For example, a transmission type photoelectric switch is used, and the controller 7 detects that a specified amount of empty cans are accumulated in the press chamber 32. Send a signal. The controller 7 receives this signal, sends a drive stop signal for the motor 214, and also sends a signal to the solenoid SL3 of the second electromagnetic switching valve 63 after a certain period of time to operate the hydraulic cylinder 36 for the closing door to the closing side. Let The sixth sensor 8f and the seventh sensor 8g are position sensors of the discharge plate 51, the sixth sensor 8f detects the forward end, and the seventh sensor 8g also detects the backward end. These sensors are, for example, proximity switches, and are arranged in a frame corresponding to the lateral sides of the discharge plate 51, as shown in FIG. 1, respectively. When the detection signal from the seventh sensor 8g is obtained, the solenoid SL2 of the first electromagnetic switching valve 62 is energized by the signal from the controller 7, and the press plate 34 descends to perform the final press. When the signal from the sixth sensor 8f is obtained, the controller 7 judges that the empty can block B has been discharged and discharged, and sends a signal to the motor 214 to rotate the large pulley 211 and move the conveyor belt 213. The eighth sensor 8h is a sensor for detecting the fullness of a can that has fallen into the container 41. For example, a transmissive photoelectric switch is used, and at least one pair is arranged above the holding frame 40 of the stocker unit 4 as shown in FIG. The ninth sensor 8i is a container set detection sensor, and for example, a reflection type photoelectric switch is used, and is arranged at the bottom of the holding frame 40 as shown in FIG. When the eighth sensor 8h and the ninth sensor 8i are turned off during automatic operation, a warning signal is sent from the controller 7, at least the warning lamp and the buzzer are activated, or the operation of the motor 214 is stopped. It During manual operation, the eighth sensor 8h and the ninth sensor 8i are turned off, and the motor 214 does not operate. The tenth sensor 8j is a closing door closing detection sensor, and the eleventh sensor 8k is a closing door opening detection sensor. For example, a proximity switch is used and incorporated in the closing door hydraulic cylinder 36. When the ON signal of the tenth sensor 8j is obtained, an energization signal is sent from the controller 7 to the solenoid SL2 to start the descent of the press plate. The eleventh sensor 8k is for the starting origin, and when it is off, the warning signal is sent from the controller 7 in the same manner as described above, the warning lamp or buzzer is activated during automatic operation, or the motor 214 is I can't drive. The twelfth sensor 8l is an obstacle detection sensor arranged on the front side of the press body 3 as shown in FIG. 4, and a reflection type photoelectric switch or the like is used to check whether there is a person in front of the empty can block when it is discharged. This is for detection. When the twelfth sensor 8l is off, a warning signal is sent from the controller 7 and a warning lamp and a buzzer are activated. Alternatively, the operation of the hydraulic cylinder 52 for discharging is further suspended. The thirteenth sensor 8m is a sub-closing door closing detection sensor arranged on the front door 31 near the sub-closing door 39, and a proximity switch or the like is used. When this is off, a warning signal is sent from the controller 7, During the automatic operation, the warning lamp and the buzzer are activated, or the operation of the hydraulic cylinder 33 for pressing is suspended. In this embodiment, empty cans are directly loaded into the loading port 20, but they may be combined with an automatic loading device such as another conveyor if necessary, and at the outlet of the discharging means 5. A conveying device such as a conveyor may be connected. Further, in this embodiment, the large pulley 211 has a body surface made of a permanent magnet. However, in some cases, an electromagnet is used to energize and magnetize only when the pulley is rotated to perform adsorption selection. Good. Further, the press body 3 may be of a horizontal type instead of the vertical type.

[0010]

[Operation of the embodiment]

 Next, the usage and operation of the present invention will be described. In the operation stopped state, as shown in FIG. 1, the press plate 34 is at the rising end, the closing door 35 is in the open state, and the discharge plate 51 is at the retracting end (in FIG. 1, the forward end is shown for convenience of explanation). It shows the state in.) Further, the opening / closing door 31 is closed, and the sub insertion door 39 is also closed. The magnetic force conveyor 21 is also stopped. This state is confirmed by the sensor by turning on the power and automatically selecting the operation changeover switch. That is, the first sensor 8a confirms the press plate rising end, the fourth sensor 8d confirms the closing of the open / close door 31, the seventh sensor 8g detects the retracted end of the discharge plate 51, and the ninth sensor 8i detects. It is confirmed that the container 41 is set at the specified position, the eighth sensor 8h confirms that the container 41 is not full, and the eleventh sensor 8k confirms that the closing door 35 is completely opened. It is confirmed by the 3 sensor 8m that the sub insertion door 39 is closed.

When each of the sensors is not turned on, a warning signal is sent from the controller 7 and the operation is not started even if the operation button is pressed. When all the sensors are turned on and the operation button is operated, first, the solenoid SL4 of the third electromagnetic switching valve 63 is turned on via the controller 7, the hydraulic cylinder 52 for discharging is operated, and the discharge cylinder 52 is discharged. The plate 51 moves to the bottom of the press chamber 32. In this embodiment, the discharge plate 51 also serves as the fixed side press plate, and the position of the discharge plate is detected by the sixth sensor 8f, and a drive signal is sent to the motor 214 to the controller 7 by the signal, and the large pulley 211 rotates. Then, the conveyor belt 213 moves counterclockwise in the drawing. As a result, the aluminum cans A and the steel cans A'randomly charged into the charging port 20 have the large pulley 211 that is magnetic, so that the non-magnetic aluminum can A freely falls from the end of the conveyor belt 213 on the tension side. It is slid down by the guide operation of the opening door 35 in the open state, and is accommodated on the discharge plate of the press chamber 32. On the other hand, since the steel can A'is attracted by the magnetic force of the large pulley 211, it does not drop even when it reaches the end of the conveyor belt large pulley 211 on the tight side, and it reaches the loose side and the magnetic force weakens. It falls due to its own weight when rolling. Since the duct 216 is open at this position, the steel can A'is dropped and accommodated in the container 41 through this.

In this way, the aluminum can A and the steel can A ′ are separated, and only the aluminum can A is sequentially and automatically put into the press chamber 32. When the amount reaches the specified amount, the fifth sensor 8e detects it and sends a full signal to the controller 7. When this full signal continues for, for example, 3 seconds or more, a drive stop signal is sent from the controller 7 to the motor 214, and the sorting means 21 automatically stops. When a predetermined time set by a timer or the like elapses after the stop time of the sorting means 21, the solenoid SL3 of the second electromagnetic switching valve 63 is energized, thereby operating the hydraulic cylinder 36 and closing the closing door 35. .. The tenth sensor 8j detects that the closing door 35 is completely closed, and the solenoid SL2 of the first electromagnetic switching valve 62 is energized via the controller 7. This causes the hydraulic cylinder 33 to move downward, the press plate 34 lowers, and the aluminum can A starts to be biased between the press plate 34 and the discharge plate 51 in the forward state. When the aluminum can A reaches a predetermined thickness or less with this press, the second sensor 8b is turned on. At the same time, it is confirmed by turning on the pressure switch 65 on the press side. The solenoid SL1 of the first electromagnetic switching valve 62 is turned off by the detection signal of the second sensor 8b, and at the same time the solenoid SL1 is energized for, for example, 2 seconds, whereby the press plate 34 is appropriately raised.

Then, during the rising time of the press plate 34, the solenoid S L5 of the third electromagnetic switching valve 64 is energized, whereby the hydraulic cylinder 52 operates in the backward direction, and the discharge plate 51 is pulled out from the press chamber 32. Be done. As a result, the pre-pressed aluminum can is placed on the receiving plate 38. In some cases, the press plate 34 may be stopped only in the downward movement and the upward movement may be omitted. When the retreat limit of the discharge plate 51 is detected by the seventh sensor 8g, the solenoid 2 of the first electromagnetic switching valve 62 is energized, and the press plate 34 starts to descend again, whereby the pressure is biased to a predetermined thickness. The can block B that has been removed is dropped onto the receiving tray 38. In this way, when the press plate 34 reaches the lower end, the third sensor 8c detects it, the solenoid 1 of the first electromagnetic switching valve 62 is energized, and the upward movement of the hydraulic cylinder 33 raises the press plate 34 to the upper end. Is detected by the first sensor 8a, the solenoid 1 is turned off and the first electromagnetic switching valve 62 is held at the neutral position. When the first sensor 8a is turned on as described above, the signal is received and the solenoid SL4 of the third electromagnetic switching valve is energized, whereby the discharge plate 51 enters the press chamber 32 and pushes out the pressure canister block B. .. At this time, if there is a person in front, the twelfth sensor 8L is turned on and the discharge plate 51 does not operate. When the twelfth sensor 8L is off, the discharge plate 51 operates and reaches the forward end, and when completion of discharge is detected by the sixth sensor 8f, a drive signal is sent to the motor 214 and the sorting means 21 restarts operation. Start. This completes one cycle, and the above operations are repeated to automatically select and press the cans. If the fifth sensor 8e does not turn on even after a predetermined time elapses after the sorting means 21 is operated, the controller 7 sends a drive stop signal for the motor 214, and the sorting means 21 stops operating.

When the steel can A'to the stocker 41 reaches a certain amount during the above operation, the eighth sensor 8h is turned off, the warning circuit is activated by this signal, and the operation is stopped. Therefore, the operation can be started by taking out the stocker 41 and arranging an empty steel can stocker. When pressing the steel can A'stored in the stocker 41, the sub-injection door 39 is opened and the steel can A'is put into the press chamber 32 from here to switch the operating condition to manual. During the manual operation, the eighth sensor 8h and the ninth sensor 8i in the automatic operation sequence are turned off, the operation circuit of the sorting means 21 does not operate, and the closing door 35 is kept closed. Otherwise, the sequence operation is performed.

[0015]

[Effect of the device]

 When the present invention described above is used, the empty cans can be separated and introduced into the press chamber to a certain amount by simply inserting the steel cans and aluminum cans in a mixed state, and the empty cans can be pressed into blocks and discharged. That is an excellent effect. Further, according to claim 2 of the present invention, when the empty can amount in the press chamber reaches a certain amount, the filling of the press chamber is automatically stopped and the press is started, and when the press is completed and the discharging is completed, the automatic Since the next cycle is started, the driver is not required to stay on track, which is an excellent effect that unmanned driving can be performed.

[Brief description of drawings]

FIG. 1 is a vertical side view showing an embodiment of an empty can pressing machine according to the present invention.

FIG. 2 is a partially cutaway plan view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a partially cutaway front view of the same.

FIG. 5 is a circuit diagram showing an actuator and a control system for a press plate, a closing door, and a discharge plate according to the present invention.

FIG. 6 is an explanatory diagram showing an outline of a control system in the present invention.

[Explanation of symbols]

 3 Main body of press machine 5 Ejection means 8e Fifth sensor 8g Seventh sensor 8j Tenth sensor 21 Sorting means 31 Opening / closing door 32 Press room 33 Hydraulic cylinder for press 34 Press plate 35 Loading door 36 Hydraulic cylinder for loading door 39 Sub loading door 51 Discharge plate 52 Discharge hydraulic cylinder

Claims (3)

[Scope of utility model registration request] 1. A pressing means is provided in the vicinity of a press machine body, and a press chamber provided with a press plate capable of advancing and retracting in the press machine body and a plurality of empty cans biased by the press plate are discharged from the press chamber. Ejection means is provided, and the empty can selected by the selecting means is guided to the press chamber on one side of the press chamber, and when the empty can is filled with a predetermined amount, the communication between the selecting means and the press chamber is shut off. The empty can press machine is characterized in that it is provided with a closing door that forms part of the wall of the press room. 2. An empty can amount sensor for detecting that a specified amount of empty cans have accumulated in the press chamber and stopping the operation of the sorting means, and an actuator for the press plate only when the condition of the closing door is detected and the closing door is closed. 2. The empty can press machine according to claim 1, further comprising a sensor for activating the discharging means and a sensor for detecting the completion of discharging by the discharging means and starting the operation of the sorting means. 3. The empty can press machine according to claim 1, wherein the press machine main body has an opening / closing door, and the opening / closing door is provided with a sub charging door.