JPH07251809A - Method for feeding thin leaf body to packing machine and tray and feed device - Google Patents

Abstract

PURPOSE:To regularly convey thin leaf bodies which have been manufactured and stacked to a packing machine under conditions that the stacked bodies do not collapse, when a thin product, for example, such as poultice of medicine is produced and a required number of the products are stacked and packed. CONSTITUTION:A required number of thin leaf bodies are stacked in a tray 4, wherein a bottom plate is provided so as to be opened and closed, and thereafter the tray 4 is carried to above a feed conveyor 3 of a packing machine 2 and the bottom plate of the tray is opened above the conveyor 3 to permit the stacked thin leaf bodies to fall down to transfer the bodies onto the conveyor 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a poultice or plaster for pharmaceuticals, or sliced cheese for foods,
A method of supplying a thin film to a packaging machine, which is applied when a required number of thin products are accumulated and conveyed to a packaging machine, a tray for storing the accumulated thin film used in the method, and a thin sheet using the tray. The present invention relates to a supply device for a packaging machine.

[0002]

2. Description of the Related Art The process of manufacturing patches such as poultices requires a plastering process in which the poultices are applied on a substrate made of a substantially band-shaped nonwoven fabric and cut to a required length, and a cut product. The product is manufactured by a packaging process in which the stacks of a number of sheets are sequentially supplied to a packaging machine. In the above steps, conventionally, the work of connecting the two steps has been performed manually.

[0003]

As described above, the conventional method requires a large number of workers and is limited in manufacturing efficiency because it is performed manually.

The present invention is to solve the above problems, and improves the supply efficiency to the packaging machine by sequentially transporting the manufactured thin leaf bodies for each required number of sheets to be packaged and directly supplying them to the packaging machine. However, it is another object of the present invention to provide a method of supplying a thin leaf body to a packaging machine, a tray, and a supply device that can suppress the discharge of defective products as much as possible.

[0005]

The solution according to the present invention is such that a predetermined number of thin sheets are accumulated in a tray having a bottom plate openably and closably mounted, and then the tray is conveyed above a supply conveyor of a packaging machine. It is characterized in that the bottom plate of the tray is opened above the supply conveyor and the accumulated thin leaves are dropped downward to transfer the stacked thin leaves onto the supply conveyor.

The trays used in the above method are rotatably mounted on the left and right portions of the frame body, and bottom plates for fixing the bottom surfaces of the frame bodies are fixed to the respective horizontal axes. , Each bottom plate is biased upward by a spring.

The above-mentioned tray-conveying feeder is a stacking station for receiving thin sheets in the tray, a conveyer conveyor for transferring the tray from the gathering station to above the feed conveyor of the packaging machine, a conveyer conveyor and a feed conveyor. It is characterized by comprising a transfer station equipped with an extrusion means for opening the bottom plate of the tray at the overlapping point with and a return conveyor for returning the empty tray to the stacking station.

Further, the pushing means comprises a pair of leg portions for pressing the left and right bottom plates of the tray against the vertically moving substrate, and a fixed plate which is attached to the substrate so as to be vertically movable and abuts on the integrated thin leaf member supported in the tray. It is characterized by having and.

A load cell for detecting the weight of the tray on which the accumulated thin leaves are loaded is provided at an intermediate portion of the transfer conveyor from the accumulation station to the transfer station.
The present invention is characterized in that a payout station including a payout means is provided after the load cell of the conveyor.

Further, the weight detection signal of the load cell is used to drive the pushing means by the positive weight signal and drive the dispensing means with the incorrect weight signal, and at the same time, it has a control means for making a correction instruction to the thin leaf manufacturing machine. It is characterized by

[0011]

According to the above apparatus, while the empty tray returned by the return conveyer stands by at the accumulating station, the thin sheets sequentially discharged from the thin sheet manufacturing machine are received and a predetermined number of thin sheets are accumulated. After that, the tray is transferred to the supply conveyor of the packaging machine by the transfer conveyor, and when it reaches the upper side of the supply conveyor, by driving the pushing means, the bottom plate of the tray is pushed downward by both legs of the pushing means. It is opened and the accumulated thin leaves are transferred onto a supply conveyor while abutting a constant plate thereon.

In the case where the load cell and the dispensing station are provided, if the weight of the load cell is within a specified range by the weighing of the load cell, when the tray reaches the transfer station, its pushing means is driven to collect the accumulated thin leaves. Transfer the body to the supply conveyor. However, if the weight is out of the specified range, the dispensing means is driven to discharge the product at the dispensing station, and the signal corrects the product standard of the thin leaf manufacturing machine.

[0013]

EXAMPLES The present invention will be described in detail. FIG. 1 is a plan view showing the outline of a feeding device. The right end of the figure is a long-sized manufacturing of a poultice and a long strip is required. The thin-leaf-body manufacturing machine 1 which consists of a plaster machine which cuts | disconnects in length and discharges is shown, The left end in the figure is the packaging machine 2 which wraps the accumulated thin-leaf body B, and is equipped with two packaging machines in the case of illustration. It shows an example. The thin leaf manufacturing machine 1 and the packaging machine 2 are conventionally known ones,
Although the detailed description is omitted, the packaging machine 2 includes a portion for wrapping the article to be packaged and a supply conveyor 3 for transferring the article to be packaged to the portion to be wrapped. Further, as shown in FIG. 11, the thin leaf manufacturing machine 1, which is a plaster machine, has a pair of left and right rollers a, a so that the distance H between them can be adjusted. A base cloth b made of a non-woven fabric, a liner c, and an ointment d are supplied from above between a, a strip-shaped poultice e is discharged from between the rollers a and a, and cut into a predetermined length with a cutter f. To produce the desired thin leaf body A.

The supply device of the present invention accumulates a predetermined number of thin sheets A sequentially discharged from the thin sheet manufacturing machine 1 and conveys the accumulated thin sheets B to the supply conveyor 3 of the packaging machine 2 and transfers them. It is intended to automate the process up to.

As shown in FIGS. 2 and 3, the tray 4 is used as a medium for carrying the accumulated thin leaves B, and the tray 4 has a pair of left and right horizontal shafts 6 in a rectangular frame 5. 6
Are rotatably installed between both bearing plates 7 and 7 projecting from the frame 5 in parallel with each other.
8 are provided so as to be opposed to each other in the left-right direction, and both bottom plates 8 and 8 are biased upward by springs 9 by coil springs fitted to the horizontal shafts 6 and 6, respectively, and the bottom plates 8 and 8 serve as a frame. The bottom surface of the body 5 is sealed, and the accumulated thin leaves B are received over both bottom plates 8, 8. Moreover, the ridges 10, 10 are provided near both the bottom plates 8, 8 on the side of the shaft support.

When the ridge 10 is pressed from above, the bottom plate 8 rotates downward about the horizontal shaft 6 and is released by the repulsive force of the spring 9 by releasing the pressing force, but the bottom plate 8 is horizontal. A stopper mechanism 11 is provided so that the stopper mechanism 11 returns to the state and is held in that state.

The stopper mechanism 11 has a trapezoidal upper portion of the bearing plate 7 and a horizontal portion 12 provided on the top thereof. On the other hand, the bearing portion of the bottom plate 8 contacts the upper surface of the horizontal portion 12 of the bearing plate 7. The bracket 14 is hung vertically from the portion 13 and the horizontal axis 6
Is installed eccentrically on the side projecting the bottom plate 8 from the center of the bearing plate 7. Therefore, the bottom plate 8 can be rotated downward, but when it is horizontally returned, the receiving part 13 is horizontal. It abuts against the portion 12 to prevent further rotation and maintain a horizontal state.

The tray 4 is set in a stacking station 15 for receiving the thin leaves A sequentially discharged from the thin film manufacturing machine 1, and is placed on the conveyor 17 by the transfer means 16 from the stacking station 15 to be transferred to the packaging machine 2. Supply conveyor 3
It will be transferred to. The number of thin leaves A received in the tray 4 at the stacking station 15 is controlled by a counting counter (not shown) provided in the thin film manufacturing machine 1.

From the above, each of the transfer conveyors 17
Is constituted by a vertical conveyor 18 and a horizontal conveyor 19. The vertical conveyor 18 is provided so as to extend from the stacking station 15. The horizontal conveyor 19 has a different transport distance from the stacking station 15 of the vertical conveyor 18 for each row. And the vertical conveyors 18 are installed at a height higher than the installation height of the vertical conveyors 18, and the horizontal conveyors 19 are provided so as to intersect with the supply conveyors 3 at the middle in the longitudinal direction. 18 and 19 are each formed of a pair of left and right endless chains.

Further, since the vertical and horizontal conveyors 18 and 19 are set in different stages as described above, the transfer means 20 for raising the tray 4 is provided on the horizontal conveyor 19 side, and the vertical conveyor 18 is provided.
A retracting means 21 is provided on the side. Furthermore, horizontal conveyor 1
The transfer station 22 is formed at a portion intersecting with 9 and the supply conveyor 3, and the pushing means 23 for opening the bottom plate 8 of the tray 4 is provided above the transfer station 22.

A payout station 24 is provided between the transfer station 22 and the end of the horizontal conveyor 19, a payout means 25 having the same structure as the push-out means 23 is provided above the payout station 24, and a payout means 25 is provided below the payout station 24. A payout conveyor 26 that intersects the horizontal conveyor 19 is provided.

Following the end of the horizontal conveyor 19, there is provided a return conveyor 27 for returning the empty tray 4 to below the stacking station 15, and the empty tray received from the horizontal conveyor 19 is provided at the beginning of the return conveyor 27. 4 is provided with the transfer means 28 for supplying the return conveyor 27,
Elevating means 29 for supplying the empty tray 4 to the collecting station 15 is provided at the end of 7.

As shown in FIG. 4, the transfer means 28 supports a transfer plate 30 in a seesaw shape, and a cylinder 31 is connected to one side of the transfer plate 30 so that the tip on the side of the horizontal conveyor 19 is inclined upward. After receiving and sensing the empty tray 4 at its tip, the cylinder is driven to tilt the tip of the transfer plate 30 downward, so that the empty tray 4 slides by its own weight to the return conveyor 27. It is something to send.

As shown in FIG. 5, the elevating means 29 is provided with a receiving plate 32 on which the trays 4 are placed so that the cylinders 33 can ascend and descend so that several trays 4 can be stacked vertically on the stacking station 15. Further, support claws 34, 34 are provided on both sides of the ascending / descending locus of the receiving plate 32 so as to be retracted outside the locus by the ascending of the receiving plate 32, and to project at the same time as it descends.

Therefore, after receiving a predetermined number of thin leaves A in the uppermost tray 4 of the stacking station 15 and transferring them onto the conveyor 17, the receiving plate 32 on which the empty tray 4 is placed.
Rises, and the support tray 34 is pushed away from the support tray 34, and the empty tray 4 placed on the receiving plate 32 causes the support trays 34 and 3 to move downward.
4 while being held on the uppermost tray 4, the thin leaf A
Are integrated.

Next, as shown in FIG. 6, the transfer means 16 for transferring from the accumulating station 15 to the vertical conveyor 18 is constituted by a locking tool 37 which performs a box motion with a combination of a vertical cylinder 35 and a horizontal cylinder 36. Tray 4
The locking tool 37 is hooked to the edge of the to pull it.

The transfer means 20 for raising the tray 4 to the height of the vertical conveyor 18 at the end of the horizontal conveyor 19 is shown in FIG.
As shown in FIG. 5, the tray 4 is constituted by a load cell 38 that moves up and down by a cylinder.

Further, the retracting means 21 for transferring the tray 4 on the load cell 38 to the horizontal conveyor 19 has a pawl piece 4 reciprocally moved by a horizontal cylinder 39 as shown in FIG.
Before loading the load cell 38, the load cell 38 stands by on the vertical conveyor 18 with a width larger than the width of the tray 4, and the tray 4 is held by the load cell 38.
It is set so as to rise between 0 and the starting end of the horizontal conveyor 19. Therefore, the tray 4 is drawn onto the horizontal conveyor 19 by driving the horizontal cylinder 39 after the weight is detected.

Next, as shown in FIGS. 8 and 9, the pushing means 23 provided in the transfer station 22 is provided with the tray 4 on both sides of the substrate 42 which moves up and down by the standing cylinder 41.
A pair of guide rods 4 that vertically extend leg portions 43, 43 facing the respective left and right ridges 10, 10 and further penetrate the substrate 42.
A fixed plate 45 for pressing the accumulated thin leaf bodies B loaded on the tray 4 is fixed to 4, 4 and 44.
Further, a stopper 46 for stopping the moving tray 4 is provided by a cylinder so as to be movable up and down. Therefore, when the substrate 42 is lowered after the stopper 46 is lowered to stop the tray 4, the fixed plate 45 presses the accumulated thin leaf bodies B in advance, and then the both leg portions 43, 43 cause the protrusions 10 of the tray 4 to move.
By pressing 10, the bottom plates 8 and 8 are rotated downward to open the bottom, and the stacked thin leaves B are transferred from the tray 4 onto the supply conveyor 3.

The dispensing means 25 has the same structure as the pushing means 23.

By the way, since the tray 4 is raised by the load cell 38, the weight of the accumulated thin leaves B including the tare of the tray 4 is weighed in between.
The load cell 38 is connected to the control means 47 shown in the flow chart of FIG.

If the weight measured by the load cell 38 is positive within a predetermined range, the control means 47 drives the pushing means 23 when the transfer station 22 is reached. On the other hand, if the weight is incorrect outside the predetermined range, it passes the transfer station 22, is stopped at the next payout station 24, and drives the payout means 25. At the same time, a correction command is issued to the thin-leaf-body manufacturing machine 1 to correct the product to a standard product, and the illegality may be excessive weight or insufficient weight.

By the way, if the thin leaf manufacturing machine 1 is a plaster machine, in order to revise it to a standard product, as shown in FIG. 11, the interval H between both rollers a is narrowed or expanded. .

With the above structure, after receiving a predetermined number of thin sheets A on the tray 4 supported by the stacking station 15, the transfer means 16 is driven to move the tray 4 to the vertical conveyor 18 of the conveyer conveyor 17. Reprint. When the tray 4 is conveyed and placed on the load cell 38 and lifted, the claw piece 40 of the retracting means 21 has already protruded.
By moving the tray backward, the tray 4 is moved to the horizontal conveyor 19
If the tray 4 is loaded with the normal stacked thin sheets B, the tray 4 is stopped by the stopper 46 of the push-out means 23, and the substrate 42 of the push-out means 23 is moved to the transfer station 22. When the descent is started, the plate 4
When the substrate 5 comes into contact with the stacked thin sheets B and the substrate 42 is further lowered, both leg portions 43, 43 press the ridges 10, 10 of the tray 4, so that the bottom plates 8, 8 rotate to open the bottom. The fixed plate 45 is dropped while being in contact with the accumulated thin leaves B, and is transferred onto the supply conveyor 3 of the packaging machine 2.

The tray 4 which has been emptied here is returned to the upper direction by moving the substrate 42 and the stopper 46 of the pushing means 23 upward, and the bottom of the tray 4 is closed, so that the horizontal conveyor 19 is again provided.
Is sent to the terminal side of the sheet, is inserted into the return conveyor 27 via the transfer means 28, and is sent back to the stacking station 15 side. The returned empty tray 4 is supplied to the stacking station 15 by the elevating means 29, and the tray 4 circulates as described above to sequentially supply the stacked thin leaves B to the packaging machine 2.

If the weight of the load cell 38 is outside the predetermined weight, the discharging means 25 is driven to discharge the accumulated thin leaves B in the tray 4 to the discharging conveyor 26, and the thin leaf manufacturing machine 1 is manufactured. The standard is corrected, and a normally manufactured product is carried into the supply conveyor 3 again.

[0037]

According to the method for supplying thin leaves to a packaging machine according to the present invention, a tray whose bottom is opened and closed is used as a medium to accumulate and convey a predetermined number of thin leaves on a feeding conveyor of the packaging machine. Then, the bottom of the tray is opened and the accumulated thin leaves are transferred onto the supply conveyor, and the operation of receiving the thin leaves discharged from the thin film manufacturing machine into the tray is easy, and the thin leaves are transferred onto the supply conveyor of the packaging machine. When transferring, it is possible to open the bottom plate of the tray and drop the accumulated thin leaves, which makes it easier to carry them into the supply conveyor and to supply them without interruption, thus improving the packaging efficiency in the packaging machine. Will be able to.

According to the tray of the present invention, the pair of left and right bottom plates are rotatably provided and are biased upward by the springs. Since both bottom plates can be rotated to open the bottom, the tray is placed on this. Since the accumulated thin leaves are dropped from above while contacting the plate, it is possible to drop them out without disturbing the accumulated state, and even if many thin leaves are accumulated, the state can be changed. It can be securely held and taken out.

According to the apparatus for feeding thin leaves to the packaging machine according to the present invention, the accumulated thin leaves are not directly conveyed by the conveyor but are stored in a tray and conveyed by the conveyor. It does not lose its state and can be transported in an orderly manner while being surely accumulated. Since the bottom of the tray is opened and the contents stored in the tray are dropped downwards, it can be solved by arranging the conveyer conveyor so as to be stacked above the supply conveyor of the packaging machine, and the structure of the transfer means is easy. Become. In order to return the empty tray to the collecting station, the tray will circulate,
An empty tray can be kept on standby in the stacking station, and the thin sheets continuously discharged from the thin sheet manufacturing machine can be reliably received in the tray without leaking.

Further, in the extruding means provided in the transfer station of the portion where the transfer conveyor and the supply conveyor are superposed,
In addition to the legs that push the bottom plate of the tray, if a fixed plate that presses the accumulated thin leaves is provided, the fixed plate contacts the accumulated thin leaves at the time of dropping out the accumulated thin leaves. Also, the accumulated state will not be disrupted, and it will be possible to orderly drop out.

Furthermore, if a load cell, a payout means, and a control means are provided, it can be discharged to the payout conveyor in the case of an illegal operation, and furthermore, the illegality detection signal of the load cell can be used for correction in the thin film manufacturing machine. Therefore, it is possible to always send a normal amount of accumulated thin leaf bodies to the supply conveyor.

[Brief description of drawings]

FIG. 1 is a plan view showing the outline of an apparatus for supplying a thin-leaf body to a packaging machine according to the present invention.

FIG. 2 is a plan view of a tray used in the supply device of the present invention.

FIG. 3 is a sectional view of the same.

FIG. 4 is a side view showing a transfer unit provided at the end of the conveyor in the supply device of the present invention.

FIG. 5 is a side view showing an elevating means provided below the collecting station in the supply device of the present invention.

FIG. 6 is a side view showing transfer means for transferring trays from a stacking station to a transfer conveyor in the supply device of the present invention.

FIG. 7 is a side view showing a transfer means and a retracting means for transferring from a vertical conveyor to a horizontal conveyor, which constitute a transfer conveyor in the supply device of the present invention.

FIG. 8 is a front view showing an extruding means provided in a superposing section of a carrying conveyor and a feeding conveyor in the feeding device of the present invention.

FIG. 9 is a sectional view showing a state in which the accumulated thin leaflets in the tray are similarly dropped out by the pushing-out means.

FIG. 10 is a flowchart showing a control means that detects whether or not the weight of the accumulated thin leaflets in the tray is within a specified range and operates accordingly.

FIG. 11 is a side view showing an outline of a main part of a plaster machine as a thin leaf manufacturing machine.

[Explanation of symbols]

 A thin leaf body B accumulated thin leaf body 1 thin leaf body manufacturing machine 2 packaging machine 3 supply conveyor 4 tray 5 frame body 6 horizontal axis 9 spring 8 bottom plate 10 ridge 15 stacking station 16 transfer means 17 transfer conveyor 20 transfer means 21 pulling means 22 Transfer station 23 Extrusion means 24 Discharge station 25 Discharge means 26 Discharge conveyor 27 Return conveyor 28 Transfer means 29 Lifting means 38 Load cell 42 Substrate 43 Legs 45 Fixed plate 47 Control means

Claims (6)

[Claims] 1. After accumulating a predetermined number of thin leaves (A) in a tray (4) to which a bottom plate (8) is openably and closably mounted,
The tray (4) is conveyed above the supply conveyor (3) of the packaging machine (2), the bottom plate (8) of the tray is opened above the supply conveyor (3), and the accumulated thin leaves (B) are dropped downward. The method for feeding thin leaves to a packaging machine is characterized in that the thin sheets are transferred onto the feeding conveyor (3). 2. A frame (5) having lateral shafts (6, 6) rotatably installed on the left and right portions of the frame (5) and protruding so as to oppose each other on the horizontal shafts (6, 6). A bottom plate (8, 8) for sealing the bottom surface of the tray is fixed, and each bottom plate (8, 8) is biased upward by a spring (9). 3. A stacking station (15) for receiving the thin leaf bodies (A) in the tray (4) according to claim 2, and a feed conveyor for the tray (4) from the stacking station (15) to the packaging machine (2). Transport conveyor (1
7), a transfer station (22) equipped with an extruding means (23) for opening the bottom plate (8) of the tray (4) at the point of overlap between the transfer conveyor (17) and the supply conveyor (3), and an empty transfer station (22) A feeding device for a thin leaf wrapping machine, comprising a return conveyor (27) for returning the tray (4) to the stacking station (15). 4. A pair of legs for pushing out the left and right bottom plates (8, 8) of the tray (4) against the vertically moving substrate (42) by the pushing means (23) provided in the transfer station (22). A fixed plate (4) that vertically hangs (43, 43) and that abuts on the substrate (42) to the accumulated thin leaves (B) in the tray (4).
5. The apparatus for supplying a thin-leaf body to a packaging machine according to claim 3, further comprising 5) vertically movable. 5. A load cell () for detecting the weight of a tray (4) loaded with accumulated thin leaves (B) at an intermediate portion from the accumulation station (15) to the transfer station (22) of the transfer conveyor (17). 38) is provided, and a dispensing station (24) provided with a dispensing means (25) is provided after the load cell (38) of the conveyor (17), and the thin leaf body according to claim 3 or 4. Supply device to the packaging machine. 6. The thin leaf manufacturing machine at the same time as the weight detection signal of the load cell (38) is used to drive the pushing means (23) with a positive weight signal and to drive the dispensing means (25) with an incorrect weight signal. The control means (46) for issuing a correction command to (1) is provided.
Alternatively, the thin-leaflet packaging apparatus according to the fifth aspect.