JPH0629115B2 - Method and apparatus for accumulating PTP sheets - Google Patents

Description

The present invention relates to a PTP sheet stacking method and apparatus in a PTP sheet conveying line.

[Conventional device]

PTP, or Press Thro
In general, ugh packing is a plastic plastic film that is continuously heated and molded by vacuum or compressed air, and then the molded pocket is filled with tablets, capsules, etc., and heat-bonded with a metal sheet such as aluminum foil. It refers to a packaging format in which the desired size is trimmed. Also, PTP
The sheet collectively refers to both the continuous sheet obtained by the PTP method and the trimmed individual sheet pieces, and the PTP sheet in the present invention refers to the latter individual sheet pieces.

In a PTP packaging machine, a continuous sheet is trimmed into individual PTP sheets, which are continuously conveyed at a predetermined interval, one PTP sheet is inverted during conveyance, and the other PTP sheet and the table are aligned. An automated system is adopted in which a plurality of pairs of PTP sheets that have been combined and combined are further accumulated into a single stack and packaged in a plastic film or the like to form a product.

[Problems to be solved by the invention]

In the PTP packaging machine as described above, the normally sent upward PTP sheet and the inverted downward PTP sheet are combined by combining the tables, and a pair of sheets is created to accumulate a plurality of pairs. , Because it is configured to be wrapped,
In the case of stacking for packing, only PTP sheets could be stacked by chance, and it was impossible to change the number of packs and pack an odd number of PTP sheets in the same device.

However, recently, with the diversification of PTP sheet packaging styles, the user has requested a change in the number of packages in the same device or an odd number of packages, and an early solution has been desired.

[Means for solving problems]

The method of accumulating PTP sheets according to the present invention is a single PTP.
In a sheet conveying line, PTP sheets that are conveyed upward on a conveying path at predetermined intervals are conveyed upward on the conveying path while being kept upward or selectively and arbitrarily reversed downward according to a predetermined program. PTP sheet of the above is conveyed as it is on the conveyance path, and the downward PTP sheet is fed to and stopped on an upper guide plate provided above the conveyance path in parallel therewith, and the upward PTP sheet is directly conveyed to the accumulating section. Either the sheet is conveyed, or is selectively and arbitrarily conveyed together with the stopped downward PTP sheet, and both are combined and then conveyed to a stacking section, and a predetermined number of sheets are stacked in the stacking section and then sent out to the next step. It was done.

In addition, the PTP sheet stacking device according to the present invention is attached to a chain or the like at a predetermined interval in the traveling direction, protruding from the guide plate, in a single PTP sheet conveying line.
A first attachment for transporting the PTP sheet on the guide plate along a rail, and a sheet guide into which both end portions of the PTP sheet are inserted are provided at substantially the same height as the guide plate on the facing surface. Inverting holders rotatably arranged on both sides of the inversion holder, the downstream side of which is axially fixed and tiltably disposed on the cut-out portion of the guide plate on the inward side of the inversion holder, and when the inversion holder is not inverted, An attachment tilting guide that is located on the same plane and passes through the first attachment and tilts when the reversing holder is reversing to tilt the first attachment, and is vertically movable between the opposing reversing holders. When the PTP sheet is inserted into the reversing holder, the reversing portion is configured to move upward to hold one end of the PTP sheet, and a reversing portion having a height of the first portion. Second attachment that is attached to a chain or the like of a system different from the first attachment at a predetermined interval and conveys the PTP sheet sent from the reversing unit, and guides the guide plate on the downstream side. An upper guide plate arranged in parallel with the plate at a predetermined interval, and an upward PTP sheet which is arranged in a cutout portion of the guide plate on the entrance side of the upper guide plate so as to be tiltable about the upstream end. When the sheet is fed, the bridge is positioned on the same plane as the guide plate, and when the downward PTP sheet is fed, the bridge is tilted so that its downstream end is located near the upper guide plate, and the rail. An attachment tilting unit that is selectively movable up and down at the excision part and that lowers when the PTP sheet is fed onto the upper guide plate and tilts the second attachment. A bridge part consisting of a guide, a stacking table arranged so as to be able to move up and down on the downstream side of the guide plate, and is provided above the stacking table and opened in synchronization with the rising of the stacking table to push up the PTP sheet by the stacking table. After that, the shutter is closed and a stacking unit including a sheet payout mechanism that sends out to the next step each time a predetermined number of PTP sheets are stacked on the shutter.

[Action]

The PTP sheet conveyed by the attachment is made to go straight according to a predetermined program, or it is reversed and sent to the bridging section, and the P is made straight ahead.
The TP sheet is conveyed to the stacking unit in combination with the TP sheet or the reversed PTP sheet, and is sent to the next process every time a predetermined number of sheets is reached.

〔Example〕

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a sectional view of an inverted portion, FIG. 2 is a sectional view of a frit portion, and FIG.
The figure is a cross-sectional view of the stacking unit, and the reversing unit, the bridging unit, and the stacking unit are continuous as a PTP sheet transport line.

In the reversing section 1 (FIG. 1, FIG. 4, FIG. 5), 2, 2
Is a frame, 2a is a lateral guide of the PTP sheet S, and 3 is P
The guide plates 4 of the TP sheet S are rails, and on the rails, the attachments 5 and 5a whose upper parts project from the guide plates 3 are provided.
Are arranged at a predetermined interval in the traveling direction (direction of arrow a), and are driven by the chain 6 or the like to move at a predetermined speed. 7,7a
Is a pair of disk-shaped reversing holders arranged on both sides of the guide plate 3 so as to face each other in the cutout portion of the lateral guide 2a.
The sheet guides 8 and 8a are provided on the opposing surfaces at substantially the same height as the guide plates.

Reference numeral 10 is a rotary shaft supported by the frames 2 and 2 via bearings, and a sprocket 11 driven by a motor or the like and gears 12 and 12a are fixed to the rotation holders 7 and 7a. It meshes with the fixed gears 13 and 13a.

Reference numeral 15 is a reversing mechanism of the PTP sheet S, 16 is a guide rod movably supported up and down by a guide holder 17 fixed to the frames 2 and 2, and 18 is a lower guide stay 1.
An air cylinder 20 is connected to the guide rod 16 via 9, and an upper guide stay 20 is fixed to the upper end of the guide rod 16. Reference numeral 21 denotes a sheet stopper fixed to the upper guide stay 20, which can be moved up and down in the hole provided in the guide plate 3 at substantially the center of the reversing holders 7 and 7a by operating the air cylinder 18. .

Reference numeral 22 denotes an attachment tilting guide, which is arranged at the cutout portion of the rail 4 on the entrance side of the reversing holders 7 and 7a and has one end rotatably fixed to the shaft 23 and the other end of which is an air cylinder.
24 are connected, and can be rotated about the shaft 23 by the operation of the air cylinder 24 so as to be positioned on the same plane as the rail 4 or tilted downward about the shaft 23 as shown in the drawing.

In the bridging section 25 (Figs. 2, 6, 7),
26a to 26c are attachments 5a and 5b of the reversing unit 1.
It is an attachment driven by a power system other than
The height thereof is higher than that of the attachments 5a and 5b. 27 is a Buritsuji one end 27a to the cutouts 3b of the guide plate 3a is arranged to be connected rotatable, Atatsuchimento 26a~26c and PTP sheet S, and _{S 1} is configured to be passed through, the support arms 29 It is connected to the air cylinder 28 via the air cylinder 28 and is tilted about the one end 27a by the operation of the air cylinder 28.

30 is a guide holder 31 fixed to the frames 2 and 2
A guide rod 32 is movably supported up and down, and an air cylinder 32 is connected to the guide rod 30 via a lower guide stay 33. 34 is the guide rod 30
Is an upper guide stay fixed to the upper end of the rail, and 35 is an attachment tilting guide fixed to the upper guide stay 34, which moves up and down by the operation of the air cylinder 32, and when the upper limit is reached, inside the cutout portion 4c of the rail 4. The upper surface of the rail 4 is flush with the rail 4. Three
Reference numeral 6 is an attachment-raising guide, and 37 and 37a are lateral guides of the PTP sheet, the width of which is narrower than that of the lateral guide 2a of the reversing section 1. Reference numeral 38 is an upper guide plate provided on the guide plate 3 at the downstream side of the bridge 27, and 39 is a guide plate.

In the stacking unit 40 (FIGS. 3, 8, and 9), 41
Is a sprocket and is attached with an endless chain 6a common to the bridging part 25.
e, ... Are attached. A guide rod 43 is supported by a guide holder 44 so as to be vertically movable, and its lower portion is connected to an air cylinder 45 via a guide stay 46. 47 is a seat stacking base, which is a guide rod 43.
Is attached to a sheet stacking holder 48 fixed to the upper end of the sheet, moves up and down by being driven by an air cylinder 45, and is located on the same plane as the guide plate 3a at the lowest limit. Reference numerals 49 and 49a denote shutters, which are connected to shutter guides 50 and 50a as shown in FIG. 9, are connected to an air cylinder 51 via a shutter arm 52, and can be opened and closed left and right as shown in FIG.

55 is a sheet payout mechanism, 56 is a guide rod, 57 is a pusher holder slidably mounted on the guide rod 56, and a pusher rod 59 is mounted so as to be rotatable.
A boss 60 having an arc-shaped groove 61 is fixed, and a pin 58 provided on a pusher holder 57 is fitted in the groove 61. Reference numeral 62 denotes a pusher fixed to the push rod 59.

63 is a rod whose one end is fixed to the push rod 59 via a holder 64, and the other end is connected to an air cylinder 67 via a lever 64a, a shaft 65 and a lever 66.

In the sheet payout mechanism 55 configured as described above, the pusher 62 is always in the position shown by the solid line in the figure, but when the air cylinder 67 is operated to move the operating rod forward, the lever 64a rotates clockwise. The rod 63 is moved in the direction of arrow a, and the boss 60 is rotated to rotate the pusher 62 to the position shown by the broken line in the figure. At this time, the other end of the groove 61 provided in the boss 60 contacts the pin 58, and the rotation of the pusher 62 is blocked. When the operating rod of the air cylinder 67 is further advanced in this state, the pusher holder 57 moves in the direction of arrow a along the guide rod 56.

Next, the operation of the device of the present invention will be specifically described. First PTP
When reversing the sheet S, as shown in FIG. 1, the PTP sheet S sent by the attachments 5 and 5a on the guide plate 3 in a long state (transverse direction) at right angles to the feed direction.
Is inserted into the sheet guides 8 and 8a of the reversing holders 7 and 7a and fed into the reversing holders 7 and 7a. When the PTP sheet S is fed, the reversing holder 7,
7a is driven by gears 12 and 12a to rotate 180 °, and PT
The P sheet S is inverted. At this time, the seat stopper 2
Since No. 1 is located at the uppermost limit by the air cylinder 18, one end of the PTP sheet S rotates along the upper peripheral edge of the stopper 21 and does not drop.

On the other hand, since the attachment tilt guides 22 and 22a are tilted counterclockwise about the shaft 23 by the air cylinder 24, the attachments 5 and 5a are tilted and fall along the attachment tilt guides 22 and 22a in the direction of arrow a. To the base of the tilting guides 22 and 22a, and pushes the reversed PTP sheet S ₁ in the sheet guides 8 and 8a of the reversing holders 7 and 7a to move it in the direction of the arrow a (hereinafter, upward direction). Suppose that the PTP sheet of _{No. 2} is S, and the inverted downward PTP sheet is S _1. )

On the other hand, when it is not necessary to invert the PTP sheet S,
As shown in FIG. 10, the air cylinder 24 rotates the sheet fall guide 22 to position it on the same plane as the rail 4, and the air cylinder 18 causes the stopper 2 to move.
If 1 is lowered and the reversing holders 7 and 7a are stopped, the attachments 5 and 5a will stay on the rail 4 as they are.
Moving up, the PTP sheet S is sent out from the guide plate 3 in the direction of arrow a through the sheet guides 8 and 8a of the reversing holders 7 and 7a.

The PTP sheet sent from the reversing unit 1 is rotated 90 ° in a long state (longitudinal direction) in the feeding direction (a device therefor is omitted) and is fed to the bridging unit 25. First, when the inverted PTP sheet S ₁ is fed downward, the first
As shown in FIG. 1, the bridge 27 is tilted by the air cylinder 28 to feed the PTP sheet S ₁ into the upper guide plate 38. At this time, if lowered to indicate Atatsuchimento tilted guide 35 in FIG. 2, fallen Atatsuchimento 26b that sent the PTP sheet _{S 1} on the upper guide plate 38, a downward PTP sheet _{S 1} on the upper guide plate 38 Move as you left.

Next, when the upward PTP sheet S is fed,
As shown in FIG. 2, the bridge 27 is on the same plane as the guide plate 3a, and the attachment fall guide 35 is also the first.
As shown in FIG. 1, since it is located on the same plane as the rail 4b, the PTP sheet S is sent to the attachment 26a and moves on the guide plate 3a as it is, and then the upper guide plate 38 is moved.
When it reaches below the downward facing PTP sheet S ₁ , the attachment 26b sends both PTP sheets S and S ₁ in the direction of arrow a, and when reaching the end of the upper guide plate 38, the downward PTP sheet S ₁ Fall and are combined with the upward facing PTP sheet S.

In this way, the reversing holders 7 and 7a, the attachment fall guides 22 and 35, the stopper 21 and the bridge 2 are provided.
By properly combining and setting the operation timings of 7, 27a, the upward or downward state of the PTP sheet can be arbitrarily selected.

One PTP sheet or a pair of sheets combining two PTP sheets sent from the bridging section 25 by the attachment 26d is sent to the stacking section 40 shown in FIGS. 3 and 8. At this time, the sheet stacking base 47 is on the same plane as the guide plate 3a, and when the PTP sheet is fed onto the sheet stacking base 47 by the attachment 26d, the shutter is released.
Open 49, 49a and raise the sheet stacking table 47 to
Push the sheet up onto the shutters 49, 49a,
A is closed and the sheet stacking table 47 is lowered. On the other hand, the attachment 26e having fed the PTP sheet onto the sheet stacking table 47 reaches the end of the rail 4b, falls down, moves along the sprocket 41, and is fed to the bridging section 25 again.

When the number of PTP sheets on the shutters 49 and 49a reaches a predetermined number (even number or odd number), the air cylinder 67 is operated to move the rod 63 in the direction of arrow a, and the pusher 62 is first rotated to the position of the broken line. After that, pusher holder 57 is moved in the direction of arrow a along guide rod 56,
P accumulated on the shutters 49 and 49a by the pusher 62.
The TP sheet is sent onto the conveyor 70.

The plurality of PTP sheets sent to the conveyor 70 are
In the next step, they are put together and wrapped in plastic film or the like, and shipped as a product.

As described above, in the present invention, by appropriately setting the operation timing of each part, the P is conveyed at a predetermined interval.
When stacking even number of TP sheets, for example, the first PT
It is only necessary to invert the P sheet downward at the reversing unit and then alternately feed it upward and downward to the stacking unit. When stacking an odd number of sheets, the first PTP sheet is conveyed as it is, and then alternately. Then, the sheets may be sent to the stacking section in the order of downward and upward. Further, if the pusher is operated when the number of sheets reaches a predetermined number in the stacking unit, an arbitrary number of sheets can be sent to the conveyor.

Although the above-mentioned embodiment shows the case where two sets of PTP sheet conveying lines are arranged in parallel, the present invention can be carried out when one set of conveying lines or three or more sets of conveying lines are arranged in parallel. . Further, although the case where an air cylinder is used as a drive means for each guide rod, PTP tilting guide, bridge, etc. is shown, it goes without saying that a hydraulic cylinder, a solenoid, a servomotor, etc. can also be used. The shapes and mechanisms of the other parts are not limited to those in the above embodiment, and can be changed as appropriate without departing from the scope of the present invention.

〔The invention's effect〕

As is clear from the above description, according to the present invention, by appropriately setting the timing of each part, it is possible to stack even-numbered PTP sheets, stack odd-numbered sheets, stack stacked sheets, and stack any number of sheets. It is possible to cope with the diversification of packaging styles in the above, and the effect of implementation is extremely large.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional view of a reversing portion, FIG. 2 is a sectional view of a bridging portion, FIG. 3 is a sectional view of an accumulating portion, and FIG. 1 is a sectional view taken along line AA of FIG. 1, FIG. 5 is a sectional view taken along line BB of FIG. 6, FIG. 6 is a sectional view taken along line CC of FIG. 2, and FIG. Is a sectional view taken along line EE of FIG. 3, FIG. 9 is a sectional view taken along line FF of FIG.
FIG. 11 and FIG. 11 are explanatory views of the operation of the present invention. 1: inversion part, 3, 3a: guide plate, 4, 4b: rail,
5, 5a, 5b, 26a to 26e: attachments,
6, 6a: Chain, etc. 7, 7a: Inversion holder, 8, 8
a: sheet guide, 10: rotary shaft, 12, 12a, 1
3, 13a: Gear, 15: Inversion mechanism, 16, 30, 4
3,56: Guide rod, 18, 28, 32, 45, 5
1, 67: Air cylinder, 21: Seat stopper, 2
2, 22a, 35: Attachment falling guide, 25:
Bridge part, 27: Bridge, 38: Upper guide plate, 4
0: stacking unit, 47: sheet stacking table, 49, 49a: shutter, 55: sheet dispensing mechanism, 57: pusher holder,
59: push rod, 60: boss, 62: push rod,
63: Rod, 70: Conveyor.

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location B65G 57/32 2124-3F B65H 15/00 A 8922-3F 31/04 7309-3F 31/30 7309-3F

Claims (2)

[Claims] 1. A PTP that is conveyed upward on a conveying path at a predetermined interval in a single PTP sheet conveying line.
According to a predetermined program, the sheet is conveyed upward on the sheet or is selectively and arbitrarily inverted downward to be conveyed on the conveying path, the upward PTP sheet is conveyed on the conveying path as it is, and the downward PTP sheet is conveyed on the conveying path. The upper PTP sheet is fed to and stopped on an upper guide plate which is provided above and in parallel with the conveyance path, and the upward PTP sheet is conveyed to the stacking unit as it is, or alternatively, the stopped downward PTP sheet is selectively conveyed.
A method of stacking PTP sheets, which is characterized in that the PTP sheets are transported together with the TP sheets, combined, transported to a stacking unit, a predetermined number of sheets are stacked in the stacking unit, and then sent to the next step. 2. In a single PTP sheet conveying line, the PTP sheet is projected from the guide plate and attached to chains or the like at predetermined intervals in the traveling direction, and the P on the guide plate is provided along the rail.
A first attachment for conveying the TP sheet, and a sheet guide into which both end portions of the PTP sheet are inserted are provided at substantially the same height as the guide plate on the facing surface, and rotatably faced on both sides of the guide plate. A reverse holder, the downstream side of which is axially locked and is tiltably disposed on the cut-out portion of the guide plate on the entrance side of the reverse holder, and when the reverse holder is not reversed, the first holder is positioned on the same plane as the rail. When the reversing holder is turned over, the first
An attachment tilting guide that tilts the attachment, and a sheet stopper that is arranged so as to be able to move up and down between the facing reversing holders and that moves up when the PTP sheet is inserted into the reversing holder and holds one end of the PTP sheet. A reversing section consisting of a second reversing section which is mounted at a predetermined interval on a chain or the like having a height higher than that of the first attachment and different from the first attachment, and which conveys the PTP sheet fed from the reversing section. Attachment, an upper guide plate disposed on the guide plate on the downstream side in parallel with the guide plate at a predetermined interval, and an upstream end portion on the cut-out portion of the guide plate on the entrance side of the upper guide plate. It is arranged so as to be tiltable as a center, and when an upward PTP sheet is fed, it is located on the same plane as the guide plate and the downward PTP sheet is fed. When it is loaded, it is tilted and its downstream side end is arranged in a bridge located near the upper guide plate and a cutout portion of the rail so as to be selectively movable up and down, and the PTP is placed on the upper guide plate.
When the sheet is fed in, the bridge part that descends to tilt the second attachment and is composed of an attachment tilting guide, a stacking table that is arranged to be able to move up and down on the downstream side of the guide plate, and is provided above the stacking table. A stack including a shutter that opens in synchronization with the raising of the stacking table and pushes up the PTP sheet by the stacking table and then closes it, and a sheet payout mechanism that sends out to the next process every time a predetermined number of PTP sheets are stacked on the shutter. And a PTP sheet stacking device.