JPS61165299A - Device for screening empty can material - Google Patents

Abstract

PURPOSE:To separate and recover surely empty cans by providing a material detector which discriminates and detects a ferromagnetic material and non- magnetic material and disposing a sorting plate for recovery and a change-over device thereof. CONSTITUTION:The material detector 31 to discriminate whether the material of the empty can 16 is the ferromagnetic material or non-magnetic material is provided on a base 29 of a press device 28. The movable sorting plate 35 and the sorting plate change-over device 34 are disposed in the upper part of a box 25 for recovering the ferromagnetic material and a box 26 for recovering the non-magnetic material. An empty can detector 36 confirms the can 16 and a press movable plate 33 and a stationary plate 30 press the can when the can 16 is discharged from a chuter 3. The material detector 31 discriminates whether the can 16 is the ferromagnetic or non-magnetic material and the plate 35 is changed over by the detection signal thereof, by which the can 16 is separated and recovered into either of the boxes 25, 26. The sure sepn. and recovery are made possible by the above-mentioned method.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applied to an empty can recycling machine that presses and collects empty cans of canned products such as canned foods, canned juices, canned drinks, etc. It is related to the device.

``Prior art'' Recently, the consumption of canned products such as canned coffee, canned juice, and canned beer has increased significantly due to the spread of vending machines, etc., and the environmental pollution caused by empty cans has become a problem, so it is necessary to collect the empty cans. Empty can collection machines are becoming popular. As shown in FIG. 4, in the conventional empty can collecting machine 1, when empty cans are placed horizontally through the empty can input port 2, the empty cans move downward through the chute 3, and are pressed into a flat shape by the pressing device 4. The empty cans were discharged into the same collection box 5 and collected regardless of their material. However, collection box 5
In order to use the empty cans collected as recycled resources, it is necessary to sort the empty cans by material, and to do this, the press device 4 discharges the empty cans into the same collection box 5 regardless of the material. If the empty cans were collected, it would take a lot of effort and time to sort the empty cans by material, so an empty can material sorting device 6 as shown in FIG. 5 is installed between the press device 4 and the collection box 5. was.

In general, empty cans are made of non-magnetic materials such as aluminum alloy plates and ferromagnetic materials such as tin plate. Detects whether the can is made of non-magnetic material or ferromagnetic material, and distinguishes between empty cans made of non-magnetic materials and empty cans made of ferromagnetic materials.
Each item can be collected in a separate collection box. Therefore, the conventional empty can material sorting device 6 has a frame 7 of the empty can collecting machine 1.
The receiver, which is mounted rotatably around a pin 8 fixed to the plate 9 and is made of a ferromagnetic material and constitutes a part of the press mechanism 4, is rotatable around the plate 9 and the pin 8. The upper end above the pin 8 is rotatably connected to the rod 12 of the pneumatic cylinder 11, whose cylinder 10 side is rotatably attached to the frame 7. A permanent magnet 13 was provided at the lower end to attract the receiving plate 9, and the receiving plate 15 was connected to the selecting plate 9 via a spring 14. Next, empty can 16
When the empty can holder 17 of the press device 4 is brought out from the chute 3 to the press position, the pressure plate 18 of the press mechanism 4
is driven by a prime mover (not shown) and moves in the direction of arrow 19, while pneumatic cylinder 1 of vacant color sorting device 6
The rod 12 of No. 1 moves in the direction of the arrow 20, and the plate 9 of the receiver is attracted by the permanent magnet 13 and rotates counterclockwise around the pin 8, united with the sorting plate 15, and the empty can 16 is moved to the receiver. is pressed into a flat shape between the plate 9 and the pressure plate 18. When the pressing of the empty can 16 is completed, the pressure plate 18 moves the rod 12 of the pneumatic cylinder 11 in the opposite direction of the arrow 19.
move in the opposite direction to the arrow 20, and the sorting plate 15 of the empty color sorting device 6 is attracted to the plate 9 by the permanent magnet 13, and the plate 9 and the like are united in a clockwise direction around the pin 8. Rotate. In this case, if the material of the empty can 16 is a ferromagnetic material, the pressed empty can 16 will be attracted to the plate 9 by the permanent magnet 13, as shown by the dashed line in FIG. rotates clockwise around the pin 8 together with the plate 9, and when the plate 9 comes into contact with the stopper 21 and stops, only the sorting plate 15 continues to rotate in the same direction.
When the magnetic force of the permanent magnet 13 acts on the pressed empty can 16 through the plate 9, the pressed empty can 1
6, the receiver leaves the plate 9, falls through the passage 23 formed between the empty can holder 17 and the stopper 21 via the partition root 22, is collected in the ferromagnetic material collection box 25, and the empty can 16 If the material is non-magnetic, the pressed empty can 16 will not be attracted to the plate 9 by the permanent magnet 13, as shown by the two-dot chain line in FIG. The particles fall through a passage 24 formed with a cutout plate 22 in between, and are collected in a non-magnetic material collection box 26 .

"Problems to be Solved by the Invention" However, in the conventional empty color sorting device 6 described above, depending on the size and pressing condition of the pressed empty can 16,
The permanent magnet 13 does not have enough adsorption power to the plate 9, and empty cans 16 made of ferromagnetic material fall through the passage 24 and are collected in the non-magnetic material collection box 26, or empty cans The liquid from the strainer in the container 16 is discharged and adheres to the plate 9 and forms a glue-like mess, and the light empty can 16 made of non-magnetic material adheres to the plate 9 and is placed in the non-magnetic material collection box. 26, the plate 9 of the receiver 1 separates from the plate 9 due to the impact of contact with the stopper 21, falls through the passage 23, is collected in the ferromagnetic material collection box 25, and the non-magnetic material Empty cans made from 1 and empty cans made from ferromagnetic material are divided into 111
1 L, ferromagnetic material collection box 2 installed in a collection line
5 and the non-magnetic material collection box 26, there was a problem that empty cans made of ferromagnetic material and empty cans made of non-magnetic material were mixed.

The present invention has been made to solve the above-mentioned problems, and the means for solving the above-mentioned problems will be described below using FIG. 1 corresponding to the embodiment. Explain.

), whether the material of the empty can 16 is ferromagnetic = 6
- A material detector 31 for detecting whether the material is non-magnetic is set aside, and a movable plate 33 (corresponding to the pressure plate 18 in FIG. 5) that is driven by a press motor 32 and performs linear reciprocating motion, During the process of pressing the empty cans 16 discharged onto the empty color holding unit 17 from 3 onto the fixing plate 30 and pressing them flat, the material of the empty cans 16 is detected by the material detector 31, and this detection signal allows the sorting into the board. The cutting device 34 is activated to sort the empty cans by switching the guiding direction of the empty cans on the plate 35, and depending on whether the material of the empty can 16 is ferromagnetic or non-magnetic, the empty can 16 is pressed into a flat shape (131) by the press device 28. Empty cans 16 taken out are guided and collected through a sorting plate 35 into a ferromagnetic material collection box 25 or a non-magnetic material collection box 26, respectively.

"Function" Therefore, the empty can 16 is transferred to the empty color holding section 17 from the sheet coater 3.
When the empty can color detector 36 detects that the empty can 16 is in a position where it can be pressed and an empty can detection signal is output from the empty color detector 36, the press motor 32 is activated and the movable plate 33 moves toward the fixed plate 30, and pressing of the empty can 16 is started. During this press process, the material of the empty cans 16 is detected by the material detector 31 attached to the fixed plate 30, and when a detection signal is output from the material detector 31, the plate cutting inspection device 34 is activated for sorting. , empty can 1
Depending on whether the material 6 is ferromagnetic or non-magnetic, the guiding direction of empty cans on the sorting board 35 is switched to the ferromagnetic collection box 25 side or the non-magnetic collection box 26 side. And the movable plate 33
presses the empty can 16 against the fixed plate 30 and presses it into a flat shape, and when the pressing process is completed and the return process starts, the pressed empty can 16 is placed between the stand 29, the fixed plate 30, and the empty color holding part 17. The sorting is carried out through the provided gap 37.
Depending on whether the material of the empty can 16 is ferromagnetic or non-magnetic, it is reliably guided and collected by the empty can material sorting device 27 into a ferromagnetic collection box 25 or a non-magnetic collection box 26, respectively. .

"Example" Below, an example of the present invention will be explained in detail based on the drawings.
I will clarify.

Fig. 1 is a front view of the empty can material sorting device of the present invention, Fig. 2 is a front view of the press device, and Fig. 3 is the lll-In shown in Fig. 2.
It is an arrow view.

As shown in FIG. 1, the empty can material sorting device 27 includes a press device 28, a ferromagnetic material collection box 25, and a non-magnetic material collection box 2.
6 and is attached to the fixed plate 30 of the press device 28 to detect whether the material of the empty can 16 is ferromagnetic or non-magnetic during the pressing process of the empty can 16. A material detector 31 that outputs a detection signal and is composed of, for example, a proximity switch, and a sorter that guides the empty cans 16 pressed and discharged from the press device 28 to the ferromagnetic material collection box 25 or the non-magnetic material collection box 26. It is activated by the detection signal from the number plate 35 and the material detector 31, and depending on whether the material of the empty can 16 is ferromagnetic or non-magnetic, the pressed empty can 16
For sorting, the plate 35 is rotated around the pin 44 so that the empty cans are guided to the ferromagnetic collection box 25 or the non-magnetic collection box 26, respectively, and the direction in which the empty cans are guided by the plate 35 is changed. For example, a sorting machine comprising a linear reciprocating mechanism using a solenoid, pneumatic cylinder, hydraulic cylinder, or electric motor is comprised of a plate cutting inspection device 34.

Press device i! 28, as shown in FIGS. 2 and 3, two arms 38.38 are attached to a fixed plate 30 fixed to the base 29 so as to be capable of linear reciprocating motion; and these two arms 38.38. A movable plate 33 that connects one end and a roller mounting plate 39 that connects the other ends of the two arms 38 and 38.
, a roller 40 rotatably attached to this roller mounting plate 39, an eccentric cam 41 that contacts this roller 40, a press motor 32 that drives this eccentric cam 41, a fixed plate 30, and an arm 38.38. It is composed of two tension springs 42 and 42 that connect the. And eccentric cam 4
1 is in contact with the roller 40 at its minimum eccentric position, the empty can 16 is discharged from the chute 3 onto the sky-blue retaining portion 17 between the movable plate 33 and the fixed plate 30, and the empty can 1
6 is detected by the empty color detector 36 and the empty color detector 3
When the empty can detection signal is output from 6, the press motor 3
2 = 10- starts. When the press motor 32 starts, the eccentric cams 41 on the left side of the press motor 32 rotate.
The eccentric cam 41 moves the arm 38, 38 via the roller 40 to the tension spring 4 while increasing the amount of eccentricity from the minimum eccentric position.
2. Move in the direction of arrow 43 while extending 42. When the arm 38.38 moves in the direction of arrow 43, the movable plate 33 also moves in the direction of arrow 43, pressing the empty can 16 against the fixed plate 30, and the eccentric cam 41 rotates 180 degrees from the minimum eccentric position. When the movable plate 3β comes into contact with the roller 40 at the maximum eccentric position, the movable plate 3β reaches the maximum pressing stroke and presses the empty can 16 into a flat shape. During this pressing stroke, the material of the empty can 16 changes from the material attached to the fixed plate 30. The detector 31 detects whether the material is ferromagnetic or non-magnetic, and the material detector 31 outputs a detection signal to the plate switching device 34 for sorting. Next, when the eccentric cam 41 rotates further and the amount of eccentricity starts to decrease from the maximum eccentric position,
Due to the restoring force of the tension spring 42.42, the arm 38.38
While the roller 40 is in contact with the eccentric cam 41, arrow 4
Empty can 16 starts moving in the opposite direction to 3 and is pressed.
is discharged downward through the gap 37 formed between the stand 29, the fixed plate 30, and the empty can holder 17, and when the eccentric cam 41 contacts the roller 40 at the minimum eccentric position, that is, the press motor 32 is activated. When the press motor 32 is stopped after rotating 360 degrees, the press device 1
28 returns to the initial state.

Next, the operation of the empty can material sorting device 27 having the above configuration will be explained.

When an empty can 16 is placed sideways through the empty can input port 2 of the empty can collecting machine 1 in operation, the empty can 16 moves downward through the chute 3 and is pushed through the chute 3 to the fixing plate 30 of the press device 28. Empty can holding section 1 between movable plates 33
When the empty can detector 36 detects that the empty can 16 is held at a pressable position and the empty can detector 36 outputs an empty color detection signal, the press motor 32 is started. , as described above, the eccentric cam 4
1. The movable plate 33 moves in the direction of the arrow 43 via the roller 40 and the arm 38.38, and the empty can 16 is moved to the fixed plate 3.
0 to press the empty can 16 into a flat shape, and during this pressing process, a material detector 31 attached to the fixed plate 30 detects whether the material of the empty can 16 is ferromagnetic or non-magnetic. is detected and a detection signal is output from the material detector 31, the sorting (plate switching device 34 is activated and the sorting number) plate 35 is changed depending on whether the material of the empty can 16 is ferromagnetic or non-magnetic. Empty can 16 is placed in ferromagnetic material collection box 25
Or, the sorting is done on board 3 so as to guide it to the non-magnetic collection box 26.
Switch the guiding direction of empty cans in step 5. Therefore, when the movable plate 33 of the press device 28 completes the press stroke and starts moving in the direction opposite to the arrow 43 and moves to the return stroke, the pressed empty can 16 passes through the gap 37 of the press device 28. The sorted cans fall onto the plate 35'', and the material of the empty cans 16 is determined to be ferromagnetic or non-magnetic.

"Effects of the Invention" As described above, in the empty can material sorting device of the present invention, an empty can material detector is attached to the fixed plate of the press device, and the empty cans are fixed by the movable plate that is linearly reciprocated by the press motor. When the empty can is pressed against the plate, during the pressing process, a material detector detects whether the material of the empty can is ferromagnetic or non-magnetic and outputs a detection signal.
By switching the can guiding direction of the inspection plate 5, the pressed empty cans that have fallen onto the sorting plate from the press device are guided to a ferromagnetic collection box or a non-magnetic collection box and collected.
Empty cans made from ferromagnetic 1111 and non-magnetic cans can be reliably separated and collected, and unlike conventional empty can grit sorting equipment, the two can be mixed and collected. This has the effect that it will never happen.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a front view of a press device, and FIG.
FIG. 4 is a perspective view of an empty can recovery machine, and FIG. 5 is a schematic diagram of a conventional empty can material sorting device. 1... Empty can collection machine, 2... Empty can input port, 3...
- Shooter, 16... Empty can, 17... Empty can holding section, 25... Ferromagnetic material collection box, 26... Non-magnetic material collection box, 27... Empty can material sorting device, 28... Press device, 30... Fixed plate, 31... Material detector, 3
3...Movable plate, 34...Plate cutting inspection device for sorting, 35.
...The sorting is by board.

Claims (1)

[Claims] Provided between the press device and the collection box of an empty can collection machine that presses empty cans input from an empty can input port using a press device and collects them into respective collection boxes according to material, during the empty can pressing process, a material detector for detecting whether the material of the empty can is ferromagnetic or non-magnetic and outputting a detection signal; and a material detector for guiding the empty can that has been pressed and discharged from the press device to the collection box. The sorting board and the detection signal from the material detector are used to guide the pressed empty cans to respective collection boxes depending on whether the material of the empty can is ferromagnetic or non-magnetic. An empty can material sorting device comprising: a sorting plate switching device that switches the guiding direction of empty cans on the sorting plate.