JPH0284300A - Crushing device - Google Patents

Abstract

PURPOSE:To simplify an assembly operation and to prevent the loss of energy at the time of use by integrally including a driving source and an operation stopping means into the driving means of a pressing section. CONSTITUTION:A worm 44 is pushed leftward by the reaction of crushing when the worm 44 rotates forward to extend a plunger 24 and an empty can is crushed to a desired state. A spring-enclosing cylinder 35m is then moved leftward by overcoming the recovering force of a compression spring 37 integrally with the leftward movement of the worm 44. An on-off selecting piece 47b of a thrust switch 45 constituted of a limit switch is pressed and switched by the leftward movement of the spring-enclosing cylinder 35m, by which the power supply to a motor M is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a crushing device used, for example, for compacting scrap metal or compacting empty cans or used cars.

[Prior Art] Among this type of crushing devices, one that has been generally known is one that uses, for example, a hydraulic circuit shown in FIG. 4. The crushing device shown in FIG. 4 is constructed so that a motor 1 rotates a hydraulic pump 2, and the rotation of the hydraulic pump 2 corresponds to the rotation of the hydraulic pump 2 to send out pressurized oil. Then, the pressure oil sent out is transferred to the switching valve 3.
It is supplied into the cylinder 4 through a plunger 5, and is pushed out to the left in the figure, so that a pressing portion 6 presses and crushes an object to be crushed, such as an empty cuff.

Then, when the pressing force by the pressing part 6 reaches a pressing force sufficient to crush it, the relief valve 8 is activated to release the pressure oil from the pressure pump 2 to the tank side, and prevent unnecessary pressure from being applied. It was configured so that it doesn't. Next, when it is determined that the work stone has been sufficiently crushed, the switching valve 3 is switched to switch the pressure oil supply route to the cylinder 4, and the plunger 5 is sucked to the right in the figure to cause the pressing part 6 to The robot is moved to the right in the figure and the work is continued to crush the next object to be crushed. Note that even when the plunger 5 is moved to the right in the figure to the end of its stroke, the relief valve 8 operates and releases the pressure oil from the hydraulic pump 2 to the tank side, creating a large pressure in the hydraulic circuit system. It was designed so that this would not occur.

[Problems to be Solved by the Invention] However, in this type of conventional crushing device, since a hydraulic mechanism is used as a driving means for the pressing part, a hydraulic pump, a switching valve, a relief valve, and even a hydraulic circuit, etc. The number of parts increases, assembly work becomes complicated, and manufacturing costs increase.

Moreover, as a method of preventing the pressing force from the pressing part from exceeding a predetermined value, a relief valve was used to release the pressure oil from the hydraulic pump to the tank side, so some of the pressure oil was removed from the tank. There is a loss of energy due to the return to the side, which has the disadvantage that energy is wasted during use.

In view of these circumstances, the present invention has been developed to reduce the assembly work by 11 times and prevent energy loss during use.
The objective is to provide the i device.

[Means for Solving the Problems] The crushing device according to the present invention integrally includes a pressing part for pressing and crushing an object to be crushed, and an electric drive source, and has a driving force of the electric drive source. a suppressing cloth driving means for switching the pressing state between a suppressing state and a non-pressing state by moving the pressing section using The present invention is characterized in that it further integrally includes an operation stop means for detecting the operating load when the load is reached, correcting the power supply to the electric drive source f, IF, and automatically stopping the crushing operation.

[Function] Since the suppressing cloth driving means integrally includes the driving source and the operation stopping means, the pressing section and the pressing section can be moved by simply assembling the suppressing cloth driving stage f and the pressing section. It is possible to manufacture a crushing device that is equipped with an electric drive source and a means for automatically stopping the crushing operation. Moreover,
Due to the action of the operation stop means, the power supply to the electric drive a/s is stopped 1 when the pressing force by the pressing part reaches a predetermined level, so that the pressing force by the pressing part reaches a predetermined level. After the size has been reached and sufficient crushing has been carried out, further consumption of ru force by the electric drive source is prevented.
Yes, use it! The energy loss in I is reduced as much as possible.

[Embodiments of the Invention] Next, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is an overall perspective view showing a device for crushing empty cans, which is an example of a crushing device according to the present invention.

In the figure, reference numeral 204 is a crushed body with a flat surface in the shape of a square, and as shown in FIG. 2, a slit 216 is formed at one end of Mr. Then, an empty canopy or chute 200, which is an example of a wave pressure '/i'j object, is placed on the bottom holder 218.
In the middle of the chute 200, there is provided an oscillating motion lIy 2 [ ] 2 that swings downward due to the weight of the object. Only when a heavy foreign object, such as an empty bottle other than empty cans, falls down, the number of swings 202 swings downward to cause the foreign object to fall into the box 214, and the weight can be sorted. (13 have been made.

The empty cuffs supplied onto the bottom 1f 2218 are crushed by the pressing section 6 driven by the pressing cloth driving device 22, which is an example of pressing cloth driving means. Note that 24 in the figure is a plunger.

Since the crushed empty canfu has an eccentric shape, it falls in one direction from the slit 216 shown in FIG. 2. In other words, the slit 216 cannot pass through the empty cylinder that has not been crushed, and the pressure /i! It is formed so that the gap is large enough to allow only the empty cans, which have become unbalanced in shape due to the heavy lifting, to pass through. Next, the empty can falling from the slit 216 flows down on the unit 206. In the middle of the lever chute 206, there is a rocking plate 208 that can move LFj to the F horn depending on the size of the empty can flowing down. If the empty can is made of aluminum, the relatively heavy empty can is stored in the box 210 by being swung by the swinging rack 208. On the other hand, if the empty can is relatively light such as an aluminum can, the rocking plate 208 is adjusted so as not to swing downward, and in that case, it passes over the rocking E208 and is relatively light. Light empty cans will be stored in the box 212.

FIG. 2 is a sectional view showing the internal structure of the pressing cloth driving device 22 and the pressing section 6. As shown in FIG.

The driving force from motor I, which is an example of an electric driving source, is
Gear 34.36. '38, 40 and 42 to the worm 44. A spring 46 is formed on the outer periphery of this worm 44, and a sliding portion 81<44'
The worm 44 screws into the threaded groove 48 formed on the inner surface of the sliding member 50, and as the worm 44 rotates IF, the sliding member 50
When the worm 44 rotates in the opposite direction, the no. 1 moving member 5f slides toward the left corner in the figure. The plunger 24 is attached to the sliding member 50, and is configured to expand and contract as the sliding member 50 slides.

A pressing portion 6 for crushing the empty can 6 is attached to the tip of the blanket 24. Sliding protrusions 220a to 221]d are provided on both left and right side surfaces of the pressing portion 6, and a sliding groove 2223 formed on the inner wall of the frame 204 is provided.
, 222b, and the sliding projections 220a to 220d are fitted therein. Then, the sliding protrusions 22 Ua to 220 d are integrated with the pressing part 6 to
2a 222b.

When the worm 44 rotates to extend the plunger 24 and crush the empty can 6 to the desired state, the reaction of the crushing causes the worm 44 to move in the left direction J in the figure. The worm 44 is pushed toward the left in the illustration.
5111 resists the restoring force of the compression spring 37 (not shown).

move in the opposite direction. To the right of this spring enclosing cylinder 35 m ＼
Due to the movement of the limit switch, the thrust switch 45 is turned ON, 0FFI; IJ replacement column piece 47b
When pressed, the motor M-
It is configured so that the power supply to ＼ is stopped. Then, by stopping the power supply to the motor ~1,
The motor M is stopped, and the movement of the plunger 24 is also stopped. Next, the worm 44 reverses and attracts the plunger 24, reaching its stroke end and stopping!・The brim prevents further suction 11. Then, due to the anti-fI effect of the suction inhibiting force, the worm 44 moves significantly to the right, and together with the movement toward the worm, the spring enclosing cylinder 35μ moves toward the left corner. , and in the same manner as described above, the ON/OFF switch 47a of the thrust switch 45 is suppressed and the motor is turned off so that the power is cut off. The pressing part driver/assistant 22 integrally includes an electric drive source, and uses the driving force of the electric driving source to move the pressing part to change the state between the suppressed state and the non-pressed state. A suppressing cloth driving means is configured to drive the switching between the two states.

Further, in this embodiment, [
Hyperactivity is prevented by the restoring force of the spring 37, and the jv of the spring 37
More than Motakata Riki? Since the thrust switch 45 is actuated and the motor M is stopped when the thrust switch 45 is activated and the motor M is stopped when the force is applied to the planer 24, the limit of the starting force of the planer 24 is the above-mentioned limit. This corresponds to the resilience of ``37.'' Therefore, instead of the restoring force of the spring 37, it is possible to use fluid pressure such as air pressure to prevent the worm 44 from moving in the left-right force direction. From I, the spring surrounding cylinder 35
m, 3'5V bellows that can be expanded and contracted 3. A sealed unit (
1 immersion, and apply fluid pressure such as air from a tube into the bellows-shaped bag, and the fluid pressure can be adjusted by the operator's 1.V. production or automatic control by a microcomputer, etc. , hsS may be configured so as to be able to adjust the expansion and contraction force of the plunger 24. With this configuration, the pressing force can be changed to an optimal pressing force depending on the type of crushed object to be crushed by the thrust force of the plunger 24. There are 111 items that can be used.

The front foot switch 45 is used to reduce the operating load when the pressing force from the pressing section reaches a predetermined level, and to stop the supply '1-u to the electric drive source to automatically perform the crushing operation. A deactivation means is configured to stop the operation.

A protrusion 226 is provided in the pressing portion 6 so as to be retractable. This protrusion 226 includes sliding protrusions 228a, 2
28b is provided in a protruding manner, and its sliding protrusion 228 is provided in the JFI movement plates 230a and 23Ob formed in the pressing part 6.
A and 22Rb are also made to fit. Further, the protrusion 226 is pressed by a compression spring 232 so as to protrude forward. This compression spring 232 is made of a material with a relatively high spring coefficient, and when the empty can 6 is crushed 11ν, the projection 226 first comes into contact with the side surface of the empty can. It is configured so that it can be suppressed and deformed. Then, as the pressing force by the pressing part 6 gradually increases, the protruding part 226 pushes against the compression spring 2.
32, the empty can 6 is completely crushed, and the protrusion 226 is in a completely retracted state. By forming 11.1 in this way, it is possible to cause a suppressing deformation on the side of the empty can before it is fully crushed by the pressing part 6, and the empty can 6 can be efficiently crushed with a small pressing force. There are advantages.

FIG. 3 is a circuit diagram showing a control circuit for driving and controlling the pressing portion driving device 22. As shown in FIG.

In the figure, reference numeral 100 denotes an operating lever, which is held in the position shown by the solid line when the pressure:Bi operation is not being performed, but is operated to the position shown by the broken line when pressing the object to be crushed. In the figure, 114 is a main switch, which is switched to the 0NOFF state by manual operation by the operator. 56
a and 56b are diodes, 45 is a forward thrust switch, and 45m is a reverse thrust switch. 45α is in the OFF state only when it is pressed by the switching piece 47b (see FIG. 2) or the spring surrounding cylinder 35m. Further, the reverse thrust switch 45m is turned off only when the switching piece 47a is pressed by the spring surrounding cylinder 35η.

In the above configuration, the main switch 114 is switched to the ON state, and the manual lever 100 is placed in the position shown by the broken line in the figure.
′) If we change the current from the power supply 122 to the switch 1
]2. Main switch 1] Passes through 4 and becomes +17 function. When the plunger 24 (see FIG. 2) is in a contracted state, that is, when the pressing portion 6 (see FIG. 2) is fully retracted, the reverse thrust switch 45m is in the OFF state and the forward thrust switch 45α is in the ON state. The current flows through the motor M through the diode 56a and forward thrust switch 45α, the motor M starts rotating, the plunger 24 extends, and the pressing portion 6 (FIG. 2 271.1) moves forward.

When the crushed object reaches the desired crushed state and the pressing force by the pressing part 6 reaches a predetermined value, the forward movement (I-cush inch 45α) is switched to the OFF state, the current to the motor M is cut off, and the motor M will automatically stop.Next, if the manual lever 100 is returned to the position shown by the solid line in the figure, the switch 112 will move to the left in the figure and switch.
The current from J 122 flows in the opposite direction to that described above and is supplied to the motor M, and the diode 56b and the reverse thrust cass.
45m long, flows through main switch 14 to ground. Then, the motor M starts to rotate in reverse, the plunger 24 starts to contract, and the pressing part 6 (see Fig. 2)
begins to retreat. When the plunger 24 contracts to its stroke limit and the pressing portion 6 (see Fig. 2) retreats to its limit, the reverse thrust switch 45ITI is turned OFF.
' state, the current from the source 122 is then cut off, and the motor M automatically stops.

It should be noted that whether the pressing part is changed from the suppressed state to the non-pressed state by manual operation 12J, or if the forward movement 11
The manual lever 100 is automatically switched to the position shown by the solid line in the figure in conjunction with the change of the cass isochi 45σ to the OFF state. H, Y may be configured to automatically retract the pressing part.Also, in this embodiment, a crushing device for crushing an empty can as an object to be crushed is shown, but the present invention is not limited to this. It may also be a pressure/QH position used for compaction or densification of a medium-sized vehicle.

[Effects of the Invention] The present invention, which accomplishes the fA'i configuration described above, provides an operation 1 for automatically stopping the crushing operation by the electric drive source and the pressing portion by simply attaching the pressing portion driving means and the pressing portion. It is possible to manufacture a crushing device equipped with a stop means, the assembly work is simple, and the manufacturing cost can be reduced. Moreover, after the crushed object has been sufficiently crushed, it is possible to prevent further consumption of power by the electric drive source, and to minimize energy loss during use.JL:/I! We were able to develop a device for this purpose.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram illustrating the state of use of a crushing device, which is an example of a crushing device made by Mokadaaki. FIG. 2 is an analytical side view showing a pressing part driving device and a pressing part, which are an example of a pressing part driving means. FIG. 3 is a circuit diagram showing a restraining circuit for controlling the pressing portion driving device. FIG. 4 is an explanatory diagram of the operation of a conventional crushing device. In the figure, N1 is a motor which is an example of an upper air drive source, 6 is a pressing part, 7 is an empty can which is an example of a crushing object, 10 is a -r movement bar, 45 is an operation stop +L, Thrust switch, which is an example of T stage, 45η is a semi-kasui nochi for forward movement, 45m is a thrust switch for reverse movement, 44 (matsu 4-1, 24 is a plunger, 47a, 47bi and 1.IJ lja J-i
− is. Figure ￥, Figure 3, Figure 3

Claims (1)

[Scope of Claims] A pressing unit for pressing and crushing an object to be crushed, and an electric drive source are integrally included, and the pressing unit is moved and pressed using the driving force of the electric drive source. and a pressing part driving means for switching between a state and a non-pressing state, and the pressing part driving means detects an operating load when the pressing force by the pressing part reaches a predetermined magnitude, and A crushing device further integrally comprising operation stopping means for automatically stopping the crushing operation by stopping power supply to the electric drive source.