JP2597533B2 - PTP sheet transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PTP sheet conveying device, and more particularly, to a PTP sheet provided in a conveying device.
The present invention relates to a sheet reversing device.

[0002]

2. Description of the Related Art PTP, or Press Through Packing.
Generally, a plastic plastic film is continuously heated and molded by vacuum or compressed air, tablets and capsules are filled in the molded pockets, and the desired pocket is thermally bonded with a metal sheet such as aluminum foil. It refers to a packaging format that is trimmed to size. The PTP sheet is P
Both a continuous sheet and a trimmed individual sheet piece obtained by the TP method are collectively referred to, but the PTP sheet in the present invention refers to the latter individual sheet piece.

In a PTP packaging machine, a continuous sheet is trimmed into individual PTP sheets, continuously conveyed at a predetermined interval, rotated every other sheet during conveyance, and then one PTP sheet is rotated. Turn the table over and tie it so that the pocket fits into the recess of the other PTP sheet, and wrap the PTP sheets together to form a single unit. Is adopted.

As a PTP sheet conveying apparatus as described above, for example, Japanese Patent Publication No. 59-26529 and Japanese Patent Application Laid-Open No.
No. 155156, No. 63-11451, No. 6
As shown in Japanese Patent Publication No. 3-17124, many proposals have been made. FIG. 8 is a view for explaining the principle of a conventional PTP sheet conveying apparatus as described above. Reference numeral 1 denotes a guide plate for conveying a PTP sheet S, and reference numeral 2 denotes a part of the guide plate 1 above and parallel to the guide plate 1. The upper guide plate 3 provided on the guide plate 1 is a rotating unit that is provided on the guide plate 1 and rotates the conveyed PTP sheet S every other sheet so that the left and right sides in the horizontal direction are reversed. Note that, as shown in the figure, the pocket of the PTP sheet S is provided on one side in the lateral direction so as to be offset.

[0005] Reference numeral 1 denotes a guide plate 1 for conveying the conveyed PTP sheet S.
FIG. ₁ shows a case where the PTP sheet S ₁ rotated by the rotating unit 3 is fed into the upper guide plate 2 by a lift that is alternately distributed to the upper guide plate 2 and the upper guide plate 2. 5 is a reversing portion provided on the upper guide plate 2, by inverting the PTP sheet S ₁ which is conveyed to feed to the back to front.

Reference numeral 9 denotes a first conveyer constructed by suspending a belt, a chain or the like 11 below the guide plate 1 between a sprocket 10a and a sprocket 10b provided slightly downstream of the rotating part 3, and 13 denotes a sprocket. This is a second conveyor configured by suspending a belt, a chain, and the like 15 between a sprocket 14a provided coaxially with 10b and a sprocket 14b provided downstream of the reversing unit 5. A pair of attachments 12 and 16 are attached at equal intervals.

Reference numerals 6a and 6b denote first guide grooves provided in the guide plate 1 above the first conveyor 9, and the head of an attachment 12 attached to the first conveyor 9 as the first conveyor 9 rotates. The PTP sheet S is conveyed to the upper portion of the guide plate 1. 7a and 7b are second guide grooves provided on the guide plate 1 above the second conveyor 13, and 8a and 8b are second guide grooves 7a and 7b of the upper guide plate 2.
A third guide groove provided at a position aligned with the first conveyor 7b, the attachments 1 attached to the two guide grooves 7a, 7b and 8a, 8b as the second conveyor 13 rotates.
6 is fitted to convey PTP sheet S, the S ₁ that the head protrudes on the upper surface of the upper guide plate 2. Note that the second and third
The distance between the guide grooves 7a, 7b, 8a, 8b is wider than the distance between the first guide grooves 6a, 6b.

Next, the operation of the PTP sheet conveying device configured as described above will be described. The PTP sheet S transported on the guide plate 1 by the attachment 12 is
Is stopped every other sheet and rotated by 180 ° by the rotating unit 3 so that the left and right sides are reversed. PT after rotation
The P sheet S is sent again by the attachment 12, but the attachment 12 is sent downward by the first conveyor 9 to be separated from the PTP sheet S, and the PTP
The sheet S is continuously conveyed on the guide plate 1 by the attachment 16 of the second conveyor 13.

Then, for example, the PTP rotated by the rotating unit 3
When the sheet S ₁ reaches the lift 4, the lift 4 is raised (or tilted) and the PTP sheet S ₁ is moved to the upper guide plate 2.
Send it up. On the other hand, even if the non-rotating PTP sheet S reaches the lift 4, the lift 4 does not operate and the PTP sheet S
Is transported on the guide plate 1 as it is. The PTP sheet S ₁ sent onto the upper guide plate 2 is turned upside down by the reversing unit 5 and is conveyed by the attachment 16 together with the PTP sheet S conveyed on the guide plate 1. both PTP sheet S, S ₁ is I conjugated, is fed to the next step.

[0010]

SUMMARY OF THE INVENTION A P having the above configuration
The TP sheet conveying device has the following problems. (1) Since the rotating section 3 and the reversing section 5 are provided on the PTP sheet conveyance line, the line is long and large, and the installation area must be large when installing. (2) Since the first and second conveyors 9 and 13 are required and the rotating section 3 having a complicated structure is provided, the entire apparatus becomes complicated, and the equipment cost and the running cost are increased. Rather, adjustment and maintenance are troublesome.

[0011] (3) PTP sheet S by the conveyor 9 and 13 of the 2 groups, which conveys the S _1, yet the second guide grooves 7
Since the width of the first and second guide grooves 6a and 6b is formed wider than the width of the first guide grooves 6a and 6b, the PTP sheet to be conveyed receives four attachments in the length direction (the direction orthogonal to the guide plate 1). A contact length is required. For this reason, a short PT
In some cases, the P sheet is difficult to be transported and cannot be transported.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a simple structure, can be reduced in size and can be reduced in cost, and can easily convey a short PTP sheet. The purpose of the present invention is to obtain a transfer device.

[0013]

A PTP sheet conveying apparatus according to the present invention comprises a pair of movable parts slidably mounted on guide rails provided on both sides of an upper guide plate at right angles to the upper guide plate. The first fixed between the movable parts across the upper guide plate
A driving means for sliding the movable part back and forth along the guide rail, and a second bar provided across the upper guide plate and moving up and down and left and right as the movable part slides, A reversing device having a holding portion for the PTP sheet, the reversing device being disposed on the upper guide plate and having one end fixed to the first bar and the other end fixed to the second lever; It is a thing.

[0014]

When the PTP sheet is fed into the reversing device from the upper guide plate, the movable portion and the first bar are moved in a direction perpendicular to the upper guide plate by the driving means. At the same time, the second bar moves upward and in the opposite direction to the first bar, rotates the inverter connected to the first and second bars by 180 ° and returns it to its original position, inverts the PTP sheet, and attaches it. Send out by

[0015]

FIG. 1 is a view for explaining the principle of a PTP transport apparatus according to the present invention. The same parts as those in the conventional example described with reference to FIG. 8 are denoted by the same reference numerals, and description thereof will be omitted. According to the present invention, the rotating unit 3 provided on the guide plate 1 of the conventional example described with reference to FIG.
Are omitted, the number of the two conveyors 9 and 13 for transporting the PTP sheet S is reduced to one, and the rotation and reversal of the PTP sheet S are performed simultaneously instead of the reversing unit 5 provided on the upper guide plate 2. The reversing device 20 is provided. Hereinafter, the reversing device 20 which is a main part of the present invention will be described.

FIG. 2 is a front view of an embodiment of the reversing device, FIG. 3 is a plan view thereof, and FIG. 4 is a left side view of FIG. In this embodiment, the case where two PTP sheets are transported on the guide plate is shown. 21a and 21b are upper guide plates 2
A base provided on both sides of the upper guide plate 2, for example, a pair of ant-shaped guide rails 22 a,
22b and 22c, 22d are provided.

Reference numerals 25a and 25b denote guide rails 22a-2.
A movable part slidably mounted on 2d. 26a,
26b has guide rails 22a, 22b, 22c,
A first bar 27 is fixed between the substrates 26a and 26b across the upper guide plate 2 between the substrates 26a and 26b. 28a and 28b are substrates 26
A pinion rotatably supported by bearings 29a and 29b provided on a and 26b, and meshes with racks 30a and 30b fixed on the bases 21a and 21b.

31a and 31b are pinions 28a and 28b
A second bar 32 is connected between the arms 31a and 31b above the first bar 27, and is linked by the arms 31a and 31b and the second bar 32. Make up the mechanism. A motor 33 is connected to a crank rod 34 on the output side, and the other end of the crank rod 34 is connected to the substrate 26a.

Reference numerals 35a and 35b denote PTP sheet reversing devices arranged on the upper guide plate 2, the details of which will be described with reference to FIGS. The inverters 35a and 35b (both have the same configuration, and will be described as an inverter 35 hereinafter) are provided with an H-shaped main body 36 and holding plates 37 provided to face the upper and lower sides thereof.
PTP sheet holding portions 38a and 38b are formed between the upper and lower sides of the main body 36 and the holding plates 37 and 37, respectively.

One end of the inverter 35 is rotatably fixed to the first bar 27 by a pin 39, and the other end is rotatably fixed to the arm 40 attached to the second bar 32 by a pin 41. Have been. The distance L ₂ between the pins 39 and 41 of the inverter 35 is approximately equal elected axial distance L ₁ of arms 31a, 31b (see FIG. 2).

Next, the operation of the reversing device 20 will be described with reference to FIG. It is assumed that the holding portion 38a of the inverter 35 accommodates the upward PTP sheet S conveyed on the upper guide plate 2. Now, when the motor 33 rotates in the direction of the arrow, the rotation is transmitted to the movable portion 25a via the crank rod 34, and the movable portion 25a, the bar 27 attached thereto and the movable portion 25b are slid in the direction of the arrow a. .

At the same time, the pinion 28a provided on the movable portion 25a rotates in the direction of arrow c along the rack 30a, and rotates the arm 31a provided integrally therewith in the direction of arrow c. Thus, the inverter 35a moves in the direction of the arrow a while rotating in the direction of the arrow c around the pin 39. When the movable part 25a moves in the direction of the arrow a by half the distance L between the axes of the inverter 35a, the arm 31a is turned by 90 °.
Then, as shown in FIG. 7 (b), the inverter 35a stands upright.

The movable portion 25a is further moved in the direction of arrow a by L / 2.
When moved, the arm 31a rotates by 180 °
In the state of (c), the PTP sheet S is inverted and faces downward. At this time, the inverter 35a returns to the original position (the PTP sheet conveyance path), and the other holding unit 38b is positioned on the PTP sheet conveyance path. When the motor 33 further rotates and the crank rod 34 rotates 180 to 360 °,
During this time, the first bar 27 moves in the direction of the arrow b opposite thereto, and the arm 31a also rotates in the direction of the arrow d to perform the opposite operation, and returns to the state of FIG. 7A again. At this time, the PTP sheet stored in the holding section 38b is turned over.

As described above, the reversing device 35a of the reversing device 20 according to the present invention includes the holding portion 38 for the PTP sheet S at two upper and lower positions.
a and 38b, and the inversion can be performed twice while the crank rod 34 makes one rotation.

Next, the operation of the PTP sheet conveying device provided with the above-described reversing device 20 will be described with reference to FIG. The PTP sheets S conveyed on the guide plate 1 by a plurality of pairs of attachments 12 attached at equal intervals to the conveyor 9 are alternately alternately guided by the lift 4 on the guide plate 1.
And the upper guide plate 2. Then, the PTP sheet S on the guide plate 1 is transported as it is, and the PTP sheet S ₁ sent on the upper guide plate 2 is attached to the next attachment 1.
By 2, it is sent to the holding portion 38 a (or 38 b) of the reversing device 20 and is reversed by the above-described action.

The inverted PTP sheet S ₂ is conveyed on the upper guide plate 2 by the attachment 12 together with the next PTP sheet S conveyed on the guide plate 1.
The two PTP sheets S ₂ , S are held together at the terminal end of, and are sent to the next step.

In the above description, two PTPs are placed on the guide plate.
The case where the sheets are simultaneously conveyed has been described. However, the present invention can also be implemented when one PTP sheet or three or more PTP sheets are simultaneously conveyed.
The present invention can be implemented even when a plurality of such guide plates are arranged side by side.

Also, the case has been described in which the inverter is provided with two PTP sheet holders, but the number of the holders may be one. However, if two holding portions are provided, the transport speed can be significantly improved. Further, the case where a pinion is provided for each of the movable portions and a rack that meshes with the pinion is provided has been shown. May be slid.

[0029]

As is evident from the above description, the present invention has the following remarkable effects since the PTP sheet is reversed while being moved in the lateral direction by the reversing device in the PTP sheet conveying device. Can be obtained. (1) There is no rotating part on the PTP sheet conveyance line,
Since both the rotation and the reversing action are performed by the reversing device, the line can be shortened and the entire device can be reduced in size, so that it can be installed in a narrow place.

(2) The number of conveyors may be one, and the rotating part having a complicated structure can be omitted, so that the entire apparatus can be simplified. Therefore, not only the equipment cost and the running cost can be reduced, but also adjustment and maintenance become easy. (3) Since there is one conveyor, the width of the attachment in the PTP sheet conveyance line is constant. For this reason, a long PTP sheet and a short PTP sheet can be reliably conveyed. (4) Since the configuration is simple, not only the cost can be reduced, but also maintenance and inspection are easy, and there is almost no failure.

[Brief description of the drawings]

FIG. 1 is a principle explanatory diagram of an embodiment of the present invention.

FIG. 2 is a front view of an embodiment of a reversing device forming a main part of the present invention.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a front view of an embodiment of the inverter.

FIG. 6 is a plan view of FIG. 5;

FIGS. 7 (a), (b) and (c) are views for explaining the operation of the reversing device.

FIG. 8 is an explanatory view showing an example of a conventional PTP sheet conveying device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide plate 2 Upper guide plate 4 Lift 6a, 6b, 8a, 8b Guide groove 9 Conveyor 12 Attachment 20 Reversing device 22a-22d Guide rail 25a, 25b Movable part 27 First bar 28a, 28b Pinion 30a, 30b Rack 32 First 2 bar 33 motor 35a. 35b Inverters 38a, 38b Holder

Claims (1)

(57) [Claims] 1. A PTP sheet conveyed on a guide plate is alternately distributed to the guide plate and an upper guide plate provided thereon, thereby inverting the PTP sheet on the upper guide plate. And a PTP sheet conveyed on the guide plate, and conveyed to the next process. A PTP sheet conveyance device, wherein the PTP sheet is slidably mounted on guide rails provided on both sides of the upper guide plate at right angles to the upper guide plate. A pair of movable parts, a first bar fixed between the movable parts across the upper guide plate, driving means for sliding the movable part back and forth along the guide rails, and across the upper guide plate. A second bar that moves up and down and left and right as the movable portion slides, and a PTP sheet holding portion. The second bar is disposed on an upper guide plate and has one end connected to the first bar. The other end of the second bar Conveying apparatus of the PTP sheet comprising the reversing device consisting of a shaft sealed inverter.