JPH032727B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an empty bag sorting device for bundling and sorting empty bags.

<Prior art> Conventionally, powder and granular materials (e.g., flour, cement, etc.) that have been packed in bags and distributed are opened and used, but the empty bags have irregular shapes and Since it was filled with powder, it expanded and became bulky. Therefore, in order to dispose of these empty bags, they are generally sorted and tied manually. If there are a large number of empty bags to be processed, the task becomes extremely difficult.

Therefore, there is a strong need for the development of a device that can easily bind and organize a large amount of such empty bags.

<Problems to be Solved by the Invention> The purpose of the present invention is to automatically stack the empty bags as described above, compress and bundle them into predetermined numbers, and thereby semi-automatically organize the empty bags. To provide an empty bag sorting device which is capable of reducing manual labor, has a large labor-saving effect, and is safe.

<Means for Solving the Problems> According to the present invention, there is a fixed base, a fixed side plate, a fallable side plate, a bottom plate that can be moved up and down by a first fluid pressure actuation means, and a bottom plate that can be opened and closed by a second fluid pressure actuation means. an empty bag sorting chamber formed in the fixed base, which is configured with a flexible top plate and in which a binding member for bundling empty bags is disposed; An empty bag guide having a dropping gate configured to open and close at the same time as the top plate, and a conveyance system that detects that the empty bags that are continuously fed on the empty bag guide are conveyed onto the dropping gate. a detection means, a fall detection means for detecting that the empty bag has fallen into the empty bag sorting room, and based on the detection results of the conveyance detection means and the fall detection means,
and a control means for controlling the operation sequence of at least the second and third fluid pressure actuating means, wherein the control means operates the second and third fluid pressure actuating means in response to a detection signal from the conveyance detecting means. the empty bag is dropped onto the binding member by simultaneously opening the top plate and the dropping gate, and upon receiving a detection signal from the detecting means of the drop detecting means, the second and third fluid pressure actuating means The sequence control unit for closing the top plate and the drop gate is repeatedly executed, and after a predetermined number of empty bags are stored in the empty bag sorting chamber, the first
The fluid pressure operating means is actuated to raise the bottom plate, the empty bag is compressed between the top plate and the raised bottom plate, and the empty bag is tightened by the binding member in the compressed state. By providing a characteristic empty bag sorting device, empty bags can be sorted safely and easily.

Next, the empty bag sorting device according to the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

The empty bag sorting device 1 of the present invention includes a fixed base 2, which is composed of two pairs of columns 3, 3 and 4, 4, with the short side between the columns 3-3 and 4-4, and the short side between the columns 3-3 and 4-4. The 4 spaces constitute long sides, the short sides are connected to each other by horizontal bars 5, and the long sides are connected to each other by horizontal bars 6. A first liquid operating means 7 operated by a suitable liquid such as air is fixed to the horizontal bars 5 and 6 via suitable mounting brackets (not shown), and a bottom plate 9 is fixed to the end of the cylinder rod 8. has been done. This first fluid pressure operating means acts to compress the empty bags stacked on the bottom plate 9, as will be described later. Therefore, under normal conditions, the cylinder rod 8 is in the contracted position shown in FIG.

In FIG. 1 (front view), a fixed side plate 10 is provided on the side surface other than the side visible from the front, and the side surface visible from the front is placed on the horizontal bar 6 at the front of the page when viewed in FIG. 1, and when viewed in FIG. A movable side plate 11 is provided which is pivoted so as to fall outward to the left. An empty bag sorting room 12 is defined by these bottom plate 9, fixed side plate 10, and movable side plate 11, and a top plate 13 is provided at a height position corresponding to the amount of empty bags that enter this sorting room 12.

Top plate 13 is secured on a pivot shaft 15 pivoted between mounting brackets 14 formed on posts 3 and 4. Arms 16 are fixed to the ends of these pivot shafts 15, as clearly shown in FIG. connected. A second fluid pressure operating means 21, such as an air cylinder, is fixed to the horizontal bar 20 stretched between the columns 3, and a cylinder rod 22 thereof is fixed to the horizontal arm 19.

As shown in FIG. 2, the second fluid pressure actuating means 21
When the cylinder rod 22 is extended, the protrusion 18 of the horizontal arm 19 is located at one end of the long groove 17, and at this time the top plate 13 fixed to the pivot shaft 15 is vertically moved as shown by the solid line in FIG. is in an open state,
When the cylinder rod 22 of the second hydraulic actuating means 21 is contracted, the protrusion 18 of the horizontal arm 19 is inserted into the long groove 1.
7, and at this time the top plate 13, which is fixed to the pivot shaft 15, rotates as shown by the dotted line in FIG. 2 and is in a horizontally closed state.

On the other hand, an empty bag A that has been opened and the contents have been discharged.
As shown in FIG. 2, the bags are continuously fed on the empty bag guide 23 in the direction of the arrow in the figure. These empty bags are dropped into the sorting room by a mechanism similar to the mechanism for opening and closing the top plate 13 of the sorting room 12 described above. A drop gate 24 is fixed to the empty bag guide 23 on a pivot shaft 26 that is pivotally supported on mounting brackets 25 provided on the pillars 3 and 4. These pivots 2
Arms 27 are fixed to the ends of the horizontal arms 29, and projections 28 provided at the ends of these arms are configured to slide within grooves 30 formed in the horizontal arms 29. A cylinder rod 31 is fixed to this horizontal arm 29, and a third fluid pressure operating means 32 having this cylinder rod is attached to the fixed base 2 by a mounting bracket 33.
is fixed for.

A limit switch 34 is provided at the end of the empty bag guide 23 to detect when the empty bag has been transported to a predetermined position.
and a limit switch 35 that detects that the bag has fallen by detecting the opening of either or both of the dropping gate 24 and the top plate 13 of the empty bag guide 23 that open and close at the same time. is suitable. These operations will be detailed later. In addition, empty bag guide 2
It is preferable to install an empty bag counting means, such as a limit switch type counter or a mechanical counter (not shown), on the empty bag counter 3 (or at any other position).

In addition, the side plate 11 that is toppled over in order to take out the bundled empty bags from the sorting room 12 has a horizontal bar 3 between the pillars 3 and 4.
For safety reasons, it is preferable that the switch 37 be latched at 6, and that when it is latched, the switch 37 is turned on and energized, and when it is unlatched, the switch 37 is turned off and cut off. .

<Operation> Next, the operation of the empty bag sorting device of the present invention will be explained. In the accompanying drawings, piping and wiring for the fluid pressure means and the like are not shown in order to avoid complicating the drawings, but they will be described in detail with reference to FIGS. 4 and 5.

This device turns on switch 38 during operation,
A switch 37 on the side plate 11 of the sorting room 12 is turned on by a horizontal bar 36 (see FIG. 4).

In this state, the fluid pressure circuit (see Figure 5) is
Fluid pressure acts from the fluid pressure source 39 through the conduit 40, the electromagnetic switching valve 41, and the conduit 42, so that the second
The cylinder rods 22 and 31 of the third fluid pressure operating means 21 and 32 are contracted to close the top plate 13 and the drop gate 24 as shown by the dotted line in FIG. 2 and the solid line in FIG. 3
Fluid pressure is applied to the pipe line 46 side through the pipe line 43 from 9 to the hand stand switching valve 45 to contract the cylinder rod 8 of the first fluid pressure operating means 7, and the bottom plate 9 is moved as shown in FIGS. 1 and 2. It is descending to the lowest point. At this time, since the fluid pressure is locked by the limit switch 44 that regulates the fluid pressure, the bottom plate 9 does not move regardless of other operations, and the work is safe. In this state, the end of the binding string member 47 is inserted into the organizing room 12 through a hole (not shown) formed in the side plate 10 as shown in FIG.
It is arranged so as to protrude from 2.

When the empty bag A reaches the position of the empty bag B on the empty bag guide 23 in this state, the two limit switches 3
4 is activated and closed, and its relay X switches the electromagnetic switching valve 41. Then, until now, pipe 42
The fluid pressure that was acting on the side acts on the pipe line 48 side,
The cylinder rods 22 and 31 of the second and third hydraulic actuating means 21 and 32 are extended, and the aforementioned linkage mechanism connects the top plate 13 and the drop gate 2.
4 are opened at the same time (see the solid line in FIG. 2 and the dotted line in FIG. 5), and the empty bag B falls into the sorting room 12 like the empty bag C.

At the position where the drop gate 24 (the top plate 13, or both may be opened) is maximally opened, the limit switch 35 is operated to close (see Fig. 2).
At this time, the relay
is closed and returns to the initial state (see Figure 4). Empty bags are continuously fed on the empty bag guide 23 and the above-described sequence control is repeated, and when a predetermined number of empty bags C have entered the sorting room 12, first the horizontal bar 36
Remove the latch. At this time, the normally closed switch 37 opens to cut off the electrical circuit shown in FIG. It is in a closed state as shown by the solid line in FIG.

After unlatching the horizontal bar 36, fold the side plate 11 forward as shown in Figure 1 and remove the limit switch 44 (first
(see figure) and close the fluid pressure limit switch 4.
4 to act on the manual switching valve 45. Next, when this manual switching valve 45 is switched to apply fluid pressure to the pipe line 49 side, the cylinder rod 8 of the first fluid pressure operating means 7 expands and pushes up the bottom plate 9, and the
Top plate 13 that closes the empty bag C contained in 2
Compress between. A bundle of compressed empty bags is tied using a binding string member 47 arranged in advance, and when the binding is completed, the manual switching valve 45 is activated to lower the bottom plate 9 and the tied empty bags are removed from the sorting room 12. Discharge. Next, raise the side plate 11, return it to its original position, and hang it with the horizontal bar 36. This makes preparations for the next empty bag process, and the above-described binding cycle is repeated.
During the cycle, if a danger arises, switch 38 can be activated to shut down the entire line.

<Effects of the Invention> According to the empty bag sorting device of the present invention, empty bags that are difficult to handle can be efficiently bundled, and the work requires less manual work, resulting in a large labor-saving effect. Furthermore, by preferably providing a control switch for each fluid pressure operating means, sufficient safety measures can be taken for the movable parts, and a large amount of empty bags can be safely processed with simple equipment, making it practical. The effect is great.

[Brief explanation of the drawing]

FIG. 1 is a front view of an empty bag sorting device according to the present invention;
2 is a side view of the same, FIG. 3 is a plan view of the same, FIG. 4 is a simplified electrical circuit diagram used in the device of the present invention, and FIG. 5 is a diagram of a fluid circuit used in the device of the present invention. Explanation of symbols, 1... Empty bag sorting device, 2... Fixed stand, 3, 4... Pillar, 5, 6... Horizontal bar, 7, 21,
32... Fluid pressure operating means, 8, 22, 31... Cylinder rod, 9... Bottom plate, 10... Fixed side plate,
11...Movable side plate, 12...Empty bag sorting room, 13...
...Top plate, 14, 25, 33...Mounting bracket,
15, 26... Pivot shaft, 16, 27... Arm, 1
7, 30... Long groove, 18, 28... Protrusion, 19,
29...Horizontal arm, 20...Horizontal bar, 23...Empty bag guide, 24...Drop gate, 34, 35, 3
7,44...Limit switch, 36...Horizontal bar,
38... Main switch, 39... Fluid pressure source, 4
1...Solenoid switching valve, 45...Manual switching valve, 47...
... Binding string member, 40, 42, 43, 46, 4
8,49...Pipe line.

Claims (1)

[Claims] 1. Consisting of a fixed base, a fixed side plate, a fallable side plate, a bottom plate that can be moved up and down by a first fluid pressure actuation means, and a top plate that can be opened and closed by a second fluid pressure actuation means, and
an empty bag sorting chamber formed on the fixed base, in which a binding member for bundling empty bags is arranged; and an empty bag sorting chamber above the empty bag sorting chamber configured to open and close simultaneously with the top plate by a third fluid pressure operating means. an empty bag guide having a dropping gate; a conveyance detection means for detecting that the empty bags continuously fed on the empty bag guide have been conveyed onto the dropping gate; a fall detection means for detecting a fall into the empty bag sorting room; and a sequence control system for sequentially controlling the operation of at least the second and third fluid pressure actuation means based on the detection results of the conveyance detection means and the fall detection means. and a control means, wherein the control means operates the second and third fluid pressure actuation means in response to a detection signal from the conveyance detection means, and simultaneously opens the top plate and the dropping gate to remove the empty bag. Repeated sequence control is performed in which the top plate and the drop gate are closed by the second and third fluid pressure operating means in response to a detection signal from the drop detection means, and the bag is dropped onto the empty bag sorting room. After a predetermined number of empty bags have been stored in the bag, the first fluid pressure operating means is activated to raise the bottom plate, and the empty bags are compressed between the top plate and the raised bottom plate. An empty bag sorting device characterized in that it is possible to tighten the empty bags with the binding member in the state. 2. A means for reliably latching the tippable side plate is provided, and when the latching means is removed to tip the side plate, the control means stops the operation of the first and second fluid pressure actuating means. The empty bag sorting device according to claim 1, which is configured to maintain the empty bags in the storage area. 3. The empty bag sorting device according to claim 1 or 2, wherein the conveyance detection means is a limit switch disposed at the end portion of the empty bag guide. 4. The device according to any one of claims 1 to 3, wherein the fall detection means is a limit switch that detects opening of at least one of the top plate of the empty bag sorting room and the bottom plate of the empty bag guide. Empty bag sorting device. 5. Claim 1, wherein a limit switch is activated when the side plate of the empty bag sorting room has been overturned, and thereafter the first fluid pressure operating means is raised and lowered by activation of a manual switching valve. ~4th
Empty bag sorting device according to any of the paragraphs. 6. Claims 1 to 5, wherein an empty bag counting means is provided on the empty bag guide or at another appropriate position.
Empty bag sorting device according to any of the paragraphs.