JPH089093Y2 - Reversing device for flaky articles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a device for reversing a flaky article.

<Background of the Invention> To package a plurality of thin flaky articles, such as a PTP package, with irregularities on the surface in an integrated state, reverse-polymerize a set of PTP packages to face each other. This allows for efficient storage in the height direction. Then, in practice, a plurality of such one set of PTP packages are laminated and packaged.

By the way, the PTP package is usually conveyed from the manufacturing apparatus in a fixed direction (including the top and bottom). Therefore, a reversing device is required to stack the front and back PTP packages while reversing the top and bottom of the PTP packages that are conveyed in a fixed direction at predetermined intervals.

As such a reversing device, for example, there is one shown in Japanese Utility Model Laid-Open No. 63-44752. In the device shown in this publication, a rotating body for reversing has a rotation center axis at the tip of one conveying path of a moving device for PTP packaged articles conveyed in two rows with the surface facing upward. Are arranged so as to be orthogonal to each other, storage grooves are formed at predetermined intervals on the outer periphery of the rotating body, and an article pushing member is provided so as to reciprocally slide in the storage grooves. .

Then, the PTP package conveyed by the transfer device is
It is inserted into the storage groove and is rotated 180 degrees by driving the rotating body. At this time, at the same time, the push-out member moves forward along the storage groove, whereby the PTP package is gradually pushed out while being inverted, and when it is rotated 180 degrees, the push-out is completely completed. Then, the PTP package that is inverted and pushed out is placed on the PTP package that has been transported on the other transport path.

In addition, one set of PTP packages that are polymerized in a mutually inverted state are further advanced in that state, and are stacked after stacking a predetermined number of sets in the next-stage polymerization device.

However, the above-mentioned conventional device has the following problems.

That is, the number of PTP packages to be finally packaged in one bag is always a multiple of 2 because a predetermined number of sets of PTP packages inversely polymerized with each other are stacked. Therefore, it has not been possible to meet the demand of an odd number of users.

In addition, as shown in FIG. 5, of the PTP packing group 1 in which the front and back are alternately stacked, the pair of PTPs located at the uppermost position.
It is also considered that one upper side 2a of the packaging body 2 is located at the lowermost part of the next PTP packaging body group 1 ', and two sets of PTP packaging bodies 2'are stacked above the lowermost PTP packaging body 2a'. To be However, in such a case, it is necessary to re-separate the set of PTP packages that are once stacked, and the work becomes complicated. In addition, the lowermost PTP package 2a 'of the second PTP package group 1'has a relatively fragile surface on the lower side, and therefore has a problem of being easily crushed.

This invention was made in view of the above background,
The purpose of this is to make it possible to arbitrarily set the number of articles to be finally stacked, and to make the orientation of the article located at the bottom of each article group constant. An object of the present invention is to provide a reversing device for a strip-shaped article.

<< Means for Solving the Problems >> In order to achieve the above-mentioned object, in the device for reversing the flaky article according to the present invention, a rotary cylinder having a rotation center in a direction orthogonal to the conveying direction of the flaky article, and its rotation. The rotation drive control includes a gripping device that is mounted on a side surface of the tubular body and is rotatable about a direction orthogonal to the rotation center, and a rotation drive control device that rotates the gripping device at a predetermined timing. The device includes a cylindrical cam arranged substantially in the same center as the rotary cylinder, a cam floor engaging with a cam groove formed in the cylindrical cam, an operating rod connected to the cam floor, and an operating rod of the operating rod. And a power transmission means for converting a lateral movement into a rotational movement of the gripping device and transmitting the same.
Further, the cam groove formed in the cylindrical cam has a cylindrical cam having a first cam groove that does not rotate the gripping device, and a branch from the first cam groove for rotating the gripping device. And a second cam groove.

<Operation> The flaky articles being conveyed are sequentially gripped by the gripping device mounted on the rotary cylinder, and each gripping device rotates while gripping the flaky article as the rotary cylinder rotates ( Orbit).

At this time, the cam floor engaged with the cam groove of the cylindrical cam moves along the first or second cam groove. Then, when the operation rod moves along the second cam groove, the operation rod moves in a predetermined lateral direction, and the movement is transmitted to the gripping device as a rotational force via the power transmission means. As a result, the gripping device rotates (rotates) about the direction orthogonal to the center of rotation of the rotary cylinder. When the cam floor moves along the first cam groove, the gripping device does not rotate.

The direction of the flaky article carried out from the reversing device (front side and back side) is set by allowing the cam floor linked to the gripping device to independently pass through either the first or second cam groove in each case. Can be adjusted arbitrarily.

Therefore, for example, if the front and back are normally carried out alternately and the flaky articles facing the front are carried out continuously at a predetermined interval, the stacked flaky articles can be simply stacked one after another. The orientation of the flaky article located at the bottom of the article group becomes constant.

<< Embodiment >> A preferred embodiment of a flaky article reversing device according to the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 1, the reversing device 10 of the present invention is a transport device 1 for transporting a PTP package 12, which is a flaky article, at predetermined intervals.
It is located on the unloading end side of No. 4. The transport device 14 is PTP
This is an endless chain that conveys the package 12 in a line.
The fingers 18 are attached at intervals of 16 predetermined intervals. Then, the PTP package 1 during the transportation
2 is conveyed with the surface side, on which the fragile pocket portion 12a is formed, facing upward.

Here, in the reversing device 10, first, the substantially octagonal rotating cylinder 20 is
It is arranged in a direction orthogonal to the transport direction of the transport device 14. As shown in FIG. 2, one end side of the rotary cylinder 20 is
It is directly pivotally attached to the machine frame 23, and the other end side is pivotally attached to the machine frame 23 'via a drive pulley 24 and a cylindrical cam 25 described later.
The drive pulley 24 is connected to a drive motor (not shown), and is rotated by the rotational force from the drive motor, whereby the rotary cylinder 20 is rotated.

The gripping device 30 is attached to one end of each side surface 20a of the rotary cylinder 20. This gripping device 30 is
It has one holding arm 31 capable of holding the PTP packaging body 12, and while holding the PTP packaging body 12 by the holding arm 31, it is configured to rotate (revolve) with the rotation of the rotary cylinder 20. There is. Each holding arm 31 is composed of two holding members, a fixed holding claw 32 and a moving holding claw 33. Then, the sandwiching claws 32 and 33 sandwich the bottom of the PTP package 12 at the substantially central portion in the lateral direction and the top of the pocket 12a. On the other hand, the both clamping claws 32, 33 are provided on the base 35
It is mounted on. That is, first, a fixed holding claw 32 having a substantially L-shaped section is provided on the upper end of the side wall portion 35a of the base 35 having a substantially L-shaped section.
Is stuck. In addition, a movable holding claw 33 having a substantially L-shaped cross section
Is fixed on a slide block 38 that slides on a guide rail 37 arranged on the bottom surface 35b of the base 35, and moves along with the movement of the slide block 38, so that both clamping claws 32, 33 are moved. It is designed to open and close. further,
A side wall 39 is connected to the open side end of the bottom surface 35b of the base 35. A compressed spring 40 is interposed between the side wall 39 and the slide block 38, and the elasticity of the spring 40 is increased. Through the restoring force, always slide block 38
On the side wall portion 35a side, that is, the movable holding claw 33 is biased in the closing direction. On the other hand, a cam mechanism is used in this example as means for moving the movable holding claw 33 in the opening direction. That is, the substantially triangular connecting plate 42 is attached to one side surface of the side wall portion 35a of the base 35. Also, the cam floor at one end
A substantially L-shaped swing arm 45 to which 43 is attached is pivotally attached to the tip end portion of the connecting plate 42 at its central bent portion. The other end of the swing arm 45 is connected to the slide block 38. Further, a first opening cam plate 47 is provided at a position near the unloading side of the transfer device 14, and a second opening cam plate 48 is provided at a position opposite to the horizontal direction rotated by 180 degrees from it. The cam floor 43 is brought into contact with both of the opening cam plates 47 and 48, so that the swing arm 45 is swung to open the movable holding claw 33.

Further, in the present invention, the gripping device 30 having the above-described configuration is made rotatable (spin) about the axial direction orthogonal to the rotational axis direction of the rotary cylinder 20. That is, each side surface of the rotary cylinder 20
A rotary shaft 50 is erected on the 20a so as to project radially outward, and the base end of the rotary shaft 50 is rotatably embedded in the rotary cylinder 20 via a bearing 51. ing. Then, at the tip of the rotary shaft 50, the base 35 of the gripping device 30 described above is provided.
Is stuck. As a result, the gripping device 30 also rotates with the rotation of the rotary shaft 50. further,
A rotation drive control device 55 that rotates the gripping device 30 is connected to the rotation shaft 50. This rotation drive control device 55,
As shown in FIG. 2 and FIG. 3, the rotary cylinder 20 is arranged along each side surface 20a of the rotary cylinder 20, and the specific mechanism is as follows. That is, first, the first pulley 56 is axially attached to the intermediate portion of the rotary shaft 50. And the side
A second pulley 57 is also arranged on the other end side of 20a, and a rotary belt 58 is provided between both pulleys 56, 57. Also,
An elongated strip-shaped guide rail 60 is arranged inside the rotary belt 58 on the side surface 20a, and a substantially rectangular slide body 61 is movably mounted on the guide rail 60. Further, pins 62, 62 are erected in the vicinity of the first pulley 56 on the outer side portion of the rotary belt 58, and the pins 62, 62 and the pins 63, 63 projectingly arranged on the side of the slide body 61 are arranged. A spring 64 is mounted between them, and the elastic restoring force of the spring 64 constantly urges the slide body 61 toward the first pulley 56. The slide body 61 is connected to the rotary belt 58 at its one side surface 61a. Furthermore, the slide body 61
A small columnar projection 65 is integrally formed at the center of the upper surface of the, and one end of an operating rod 67 is connected to the projection 65. That is, the lateral movement of the operating rod 67 is converted into the rotational movement of the gripping device and transmitted by the rotary shaft 50, the first and second pulleys 56 and 57, the rotary belt 58, the guide rail 60, the slide body 61 and the like. Power transmission means is configured. The other end of the operating rod 67 is connected to a small columnar cam floor 69, and this cam floor 69 is attached to a cylindrical cam 25 (details will be described later) arranged outside the other end side of the rotary cylinder 20. Engaged. Further, the cam floor 69 is linked to the support mechanism 72 so that the cam floor 69 can be stably rotated and moved in the lateral direction (the arrangement direction of the operation rod 67). That is, the support mechanism 72 has a pair of rotary frames 73, 73 having the same center of rotation as the rotary cylinder 20 and rotating in synchronization with the rotary cylinder 20, and the rotary frames 73, 73 in a parallel state. A set of guide bars 7 installed
4,74 and its guide rods 74,74 are attached to guide rods 74,74
And a slider 75 having a rectangular shape that is slidable in the direction of arrangement. The cam floor 69 is mounted on the slider 75 in an upright state, and the upper and lower ends of the cam floor 69 are respectively from the upper and lower surfaces of the slider 75. It is arranged protruding. As a result, the cam floor 69 includes the rotary frame 73, the guide rod 74, and the slider that rotate in synchronization with the rotation of the rotary cylinder 20.
The operation rod 67 connected to the cam floor 69 is rotated and moved at the same speed by 75, so that the operating rod 67 is always maintained in parallel with the side surface 20a of the rotary cylinder 20. Then, when the cam floor 69 moves laterally by the action of the cylindrical cam 25 described later,
Along with that, the operating rod 67 and the slide body 61 also move laterally, and the rotary belt 58 connected to the slide body 61 also rotates. The rotation of the rotary belt 58 causes the first pulley 56 to rotate, and the gripping device 30 can be rotated (rotated) in the axial direction of the rotary shaft 50.

On the other hand, the cylindrical cam 25 is non-rotatably arranged in the same center as the rotary cylinder 20 and has two cam grooves 81, 82 on its side peripheral surface.
have. That is, the first cam groove 81 is formed in a ring shape along the peripheral edge of the side peripheral surface on the rotary cylinder 20 side. Further, the second cam groove 82 is formed in a bypass shape that branches from the middle of the first cam groove 81 and returns again. That is,
For the sake of convenience, if the loading side of the reversing device 10 is set to 0 degree and the rotation direction is set to 90 degrees, 180 degrees, and 270 degrees, the parallel passage of the second cam groove 82 is between about 90 degrees and about 270 degrees. 82a is formed, and inclined passages 82b connecting the first cam groove 81 and the parallel passage 82a are formed at both ends of the parallel passage 82a. The lower end portion of the cam floor 69 described above is slidably inserted and arranged in the first and second cam grooves 81, 82. As described above, since the slide body 61 in which the cam floor 69 is linked via the actuating rod 67 is constantly urged to the gripping device 30 side by the spring 64, the cam floor 69 is also always moved to the first position by the urging force. Trying to move in the cam groove 81 of. Then, while moving in the first cam groove 81, the lateral position of the cam floor 69 (distance from the gripping device 30) does not change, so that the gripping device 30 rotates about the rotating shaft 50 ( Rotation is not performed, but only rotational movement (revolution) associated with the rotation of the rotary cylinder 20 is performed.

On the other hand, in the vicinity of the branch point between the first cam groove 81 and the inclined passage 82b of the second cam groove 82, which are located at approximately 90 degrees, the operating plate 85 is in the lateral direction (direction orthogonal to the rotating direction of the cylindrical cam 25). Is arranged so that it can be moved.
It will be held at. In addition, this operating plate 85
Has a working surface 85a with one end chamfered, and the working surface 85a can contact the corner portion of the slider 75. And the operating plate at a predetermined timing
By moving 85 in the direction to enter the cylindrical cam 25, the working surface 85a of the operating plate 85 abuts on the corner of the slider 75 and urges the slider 75 in the lateral direction, and is mounted on the slider 75. The cam floor 69 is sent into the inclined passage 82b of the second cam groove 82. Then, the cam floor 69 will move along the second cam groove 82 as the rotary cylinder 20 rotates. That is, the cam floor 69 gradually moves to the outer side (referenced to the rotary cylinder 20 side) as it passes through the inclined passage 82b of the second cam groove 82, and this movement is performed via the operating rod 67 and the like. It is transmitted to 30 and the gripping device 30 rotates. And the cam floor
When 69 reaches the parallel passage 82a of the second cam groove 82, the gripping device 30 rotates about 180 degrees, and thereafter revolves while maintaining that state. And a predetermined section (about 90 degrees to about 270
After the revolution, the cam floor 69 returns to the inside of the first cam groove 81 through the inclined passage 82b, so that the gripping device 30 rotates in the opposite direction to the original state. The cylindrical cam 25 shown in FIG. 2 is shown in a developed view with its side surface opened for convenience.

It should be noted that the switching of the first and second cam grooves 81, 82, which is the movement path of the cam floor 69, is not limited to the operation plate 85 described above, and for example, as shown in FIG. The auxiliary guide rail 86, which swings about a point as a fulcrum, is swingably mounted in the cam groove, and switching is performed by moving the auxiliary guide rail 86 to the positions shown by the solid line and the alternate long and short dash line in the figure. Means can be taken.

Next, the operation of the above-described embodiment will be described. First, as shown in FIG. 1, the holding arm 31 of the gripping device 30 located at the 0 degree position near the carry-out end side of the transfer device 14 is 1 by the action of the open cam plate 47 and the cam floor 43 provided on the swing arm 45 (the fixed holding claw 32 and the moving holding claw 32).
It is open between 33). Therefore, the PTP package 12 that is sequentially transported on the transport device 14 with the surface side on which the weak pockets 12a are formed facing upward.
Is inserted and arranged in the holding arm 31. PT from that state
When the P package 12 rotates, the cam floor 43 separates from the first open cam plate 47, so that the elastic restoring force of the spring 40 causes the slide block 38 to move, and along with this movement, the movement provided on the slide block 38. The clamping claw 33 also moves in the closing direction, which closes the clamping arm 31 and
The package 12 is gripped. In this state, further rotating cylinder
When the 20 rotates, the gripping device 30 revolves around. Then, when it is rotated 180 degrees in that state, the cam floor 43 provided on the gripping device 30 contacts the second opening cam plate 48, and the holding arm 31 is opened. As a result, the grip of the PTP package 12 is released, and the PTP package 12 is transferred onto the transport path 80 of the next-stage laminating apparatus.

At this time, since the cam floor 69 normally moves in the first cam groove 81 of the cylindrical cam 25, the gripping device 30 itself does not rotate but revolves, so when rotated 180 degrees, the PTP package 12 becomes As shown in FIG. 1, the front and back are reversed so that the pocket 12a is positioned on the lower side.

Therefore, in this example, the operating plate 85 is moved to the side of the cylindrical cam 25 at a predetermined timing to guide the cam floor 69 into the second cam groove 82. As a result, the gripping device 30 is rotated by 180 degrees (specifically, a position slightly past 90 degrees),
It rotates 180 degrees around the rotating shaft 50 and revolves in that state. As a result, in the carry-out portion where the holding arm 31 of the gripping device 30 is opened, the pocket portion 12a is in the same state as when it is transferred from the transport device 14 to the reversing device 10, and remains in that state. It is transferred onto the transport path 80 of the next-stage laminating apparatus.

Therefore, by carrying out the movement of the operating plate 85 every other one with respect to the gripping device 30, the PTP packaging body 12 whose front and back sides are alternately inverted is supplied onto the transport path 80 of the laminating device. become.

However, if the final stacking number of PTP packages is an odd number, two gripping devices 30 that are consecutive at predetermined intervals are used.
The operating plate 85 is moved with respect to, and continuously rotated as shown in FIG. As a result, two PTP packages 12 moving on the transport path 80 of the stacking device are continuously transported with the pocket 12a facing upward. Therefore,
The PTP package located at the bottom of the group of articles stacked by a predetermined number (even an odd number) by the stacking device is always in the upward state (the pocket 12a is upward).

In the embodiment described above, the second cam groove 82 for rotating the gripping device 30 is formed over a relatively long distance of approximately 90 degrees to 270 degrees of the rotary cylinder 20, but this installation angle Is optional. That is, it may be shorter or longer. Furthermore, the parallel passage 82a in the embodiment need not necessarily be provided, and the position where the parallel passage 82a returns to the first cam groove may be earlier than 180 degrees. However, in that case, in the same configuration as above, 18
At the 0 degree position, all gripping devices 30 (sandwich arm 31)
Are facing the same direction, it is necessary to mount the gripping device 30 on the rotary cylinder 20 via the ratchet mechanism, and the inverted orientation of the gripping device 30 is re-rotated between 180 degrees and 360 degrees. It is necessary to provide an auxiliary cam groove or the like to restore the original state.

Further, the lateral movement (displacement) of the operating rod 67 is converted into the rotational movement (rotational displacement) of the gripping device 30 to convert the gripping device 30.
Although the pulleys 56, 57 and the rotary belt 58 are used as the power transmission means for transmitting to, the present invention is not limited to this, and for example, a sprocket and an endless chain may be used.
Various mechanisms can be used, such as forming a rack at the tip of the operating rod and providing a pinion capable of meshing with the rack on the rotary shaft 50 to which the gripping device 30 is attached.

In addition, it goes without saying that the shape of the rotary cylinder 20 and the number of the gripping devices 30 installed are not limited to those in the above embodiment.
The gripping device 30 may be provided with a plurality of gripping arms, as long as the gripping device can grip the flaky article to be gripped without dropping. The holding arm may have various shapes and mechanisms.

Furthermore, in the above-described embodiment, the direction of the flaky article supplied to the reversing device 10 is always in a fixed direction (front), but the present invention is not limited to this, and the front and back may be reversed. Alternatively, it may be randomly supplied. In that case, a means for detecting the supply state (which is not particularly necessary when the front and back sides come in order) is provided, and the rotation drive control means is actuated based on a signal from the means for detecting to supply the gripping means. It suffices to control whether or not to rotate.

Furthermore, the flaky article is not limited to the PTP package, but can be applied to any article.

<< Effects of the Invention >> As described above, in the flaky article reversing device according to the present invention, the conveyed flaky articles are sequentially gripped by the gripping device mounted on the rotary cylinder, and each gripping device is With the rotation of the rotary cylinder, the flaky article is rotated (revolved) while being held, and the flaky article can be inverted by revolving 180 degrees.

Further, at the time of this revolution, the cam floor engaging with the cam groove of the cylindrical cam is passed through the second cam groove to rotate the gripping device about the direction orthogonal to the center of rotation of the rotary cylinder (rotation). By this rotation, the reversal accompanying the above-mentioned revolution is offset, and the flaky article can be carried out in the state at the time of carrying in.

The direction of the flaky article carried out from the reversing device (front side and back side) is set by allowing the cam floor linked to the gripping device to independently pass through either the first or second cam groove in each case. Can be adjusted arbitrarily.

As a result, for example, if the front and back are normally carried out alternately and the flaky articles facing the front are carried out continuously at predetermined intervals, the carried flaky articles can be stacked one after another. The orientation of the flaky article located at the bottom of each article group can be made constant.

[Brief description of drawings]

FIG. 1 is a front view showing a preferred embodiment of a device for reversing flaky articles according to the present invention, FIG. 2 is a plan view showing a rotation drive control device, FIG. 3 is a side view thereof, and FIG. FIG. 5 is a diagram showing a modified example, and FIG. 5 is a diagram showing a conventional example. 10 ... Reversing device 12 ... PTP package (flaky article) 20 ... Rotating cylinder, 25 ... Cylindrical cam 30 ... Gripping device, 55 ... Rotation drive control device 58 ... Rotating belt, 67 ... Actuating rod 69 ... Cam floor, 81 ... First cam groove 82 ... Second cam groove

Claims (1)

[Scope of utility model registration request] 1. A rotary cylinder having a center of rotation in a direction orthogonal to the transport direction of the flaky article, and a rotary cylinder mounted on a side surface of the rotary cylinder and rotatable about a direction orthogonal to the center of rotation. A gripping device and a rotation drive control device for rotating the gripping device at a predetermined timing. The rotation drive control device is provided with a cylindrical cam arranged substantially in the same center as the rotary cylinder, and the cylindrical cam. A cam floor that engages with the cam groove formed in the, a working rod that is connected to the cam floor, and a power transmission means that converts the lateral movement of the working rod into the rotational movement of the gripping device and transmits it. Further, the cam groove formed in the cylindrical cam is a first cam groove that does not rotate the gripping device, and a second cam groove that branches from the first cam groove to rotate the gripping device. Composed of and A device for reversing a flaky article, comprising: