JPH0139923B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conveying device for a container lid having a gripping piece, and more particularly, to a conveying device for a container lid having a gripping piece, and more particularly, a circular top surface portion, a cylindrical skirt portion hanging from the periphery of the top surface portion, and a free end of the skirt portion. The present invention relates to a conveying device for a container lid having a gripping piece projecting radially outwardly from the container lid.

In the manufacture of container lids for containers such as bottles or cans, it is often necessary to sequentially convey container lids formed into a predetermined shape through a predetermined path through a predetermined path. For example, in order to provide good sealing properties to container lids, recently a liner made of a suitable synthetic resin material such as polyolefin resin or vinyl chloride resin is molded on the inside of the top surface of the container lid. In such cases, the container lid is generally conveyed through a predetermined path to an embossing device, and during such transportation, the container lid is heated by a heating device and is transferred to a liner material dispensing device. Therefore, a liner material is supplied to the inside of the top surface of the container lid, and then the liner material is stamped into a desired shape using a stamping device (for example, Japanese Patent Publication No. 42-20759, U.S. Pat. No. 3,782,329). (Please refer to the specification and drawings or Japanese Patent Application Laid-Open No. 52-99186.) Conventionally, as a conveying device for conveying container lids through a predetermined path, containers are placed at equal angular intervals along the periphery. A so-called rotary turret type conveying device is preferably used, which is equipped with a rotary turret disk in which a plurality of approximately semicircular notches are formed, and a drive source for rotating the rotary turret disk. ing. In such a rotary turret type conveying device, a container lid is carried into each of a plurality of notches in the rotary turret disk, and the container lid is conveyed through an arcuate path by rotation of the rotary turret disk. Ru.

The known rotary turret type conveying device described above is capable of conveying the container lid as desired if the container lid to be conveyed is of normal form without a radially outwardly protruding gripping piece. can do. However, if the container lid to be transported has a special shape with a gripping piece radially outward, that is, in addition to a circular top surface and a cylindrical skirt hanging from the periphery of the top surface, the skirt portion It has been found that container lids with a tensioning tab projecting radially outwards from the free end of the container cannot be conveyed as desired using known conveying devices.

In a rotary turret type conveying device, in order to prevent container lids carried into the notches of the rotary turret disk from falling out of the notches during conveyance, the rotary turret circle is inserted in at least a portion of the conveyance path. A guide member having an arcuate guide surface located adjacent the periphery of the plate is disposed on the outside of the rotating turret disk. As the rotating turret disk rotates, the portion of the container lid that protrudes radially outward from the notch is brought into contact with the guide surface, and this contact prevents the conveyance from proceeding. The container lid then has a tendency to rotate in the recess. Therefore, when the container lid to be transported has the gripping piece projecting outward in the radial direction, when the container lid rotates in the notch, the gripping piece of the container lid is inserted into the adjacent notch. Unacceptable problems arise, such as impact on the container lid located thereon, resulting in damage or deformation of the container lid.

The present invention has been made in view of the above facts, and its main purpose is to provide a rotating turret disk in which a plurality of approximately semicircular notches are formed at equal angular intervals on the periphery; This type of conveying device is equipped with a drive source for rotationally driving a rotating turret disk, and the container lid having a gripping piece projecting outward in the radial direction is provided without causing the above-mentioned problems. It is an object of the present invention to provide an improved conveying device that can convey the objects well as required.

According to the present invention, a conveying device for a container lid has a circular top portion, a cylindrical skirt portion depending from the periphery of the top portion, and a gripping piece projecting radially outward from the free end of the skirt portion. a rotating turret disk having a plurality of approximately semicircular notches formed at equal angular intervals on its periphery;
In the conveying device equipped with a drive source for rotating the rotating turret disk, the gripping pieces are placed inside each of the notches of the rotating turret disk. When the container lid that has been carried into the notch radially inward is conveyed by the rotation of the rotating turret disk, the gripping piece of the container lid is restrained so that the container lid is There is provided a conveying device characterized in that a container lid rotation prevention member is provided to prevent the container lid from rotating beyond a predetermined angular range in the notch.

According to the conveying device of the present invention, the container lid rotation prevention member restrains the gripping piece of the container lid to prevent the container lid from rotating beyond a predetermined angular range within the notch. The above-mentioned problems caused by the rotation of the container lid in the container are reliably avoided, and container lids with radially outwardly projecting gripping pieces can thus be conveyed in a good manner as required.

Thus, in a container lid that has a circular top surface and a cylindrical skirt that hangs down from the periphery of the top surface, there is also a tension gripping piece that projects radially outward from the free end of the skirt. At least one reinforcing protrusion is often formed on the portion of the skirt portion to which the gripping piece is connected.

According to the present invention, the present invention further provides a conveying device that can be particularly applied to conveying a container lid on which the above-mentioned protrusions are formed, including a circular top portion, a cylindrical skirt portion hanging from the periphery of the top portion, and the skirt. A container having a gripping piece projecting radially outward from a free end of the skirt part, and at least one protrusion is formed on a portion of the skirt part to which the gripping piece is connected. A conveying device for a lid, comprising a rotating turret disk in which a plurality of substantially semicircular notches are formed at equal angular intervals on the periphery, and a device for rotating the rotating turret disk. In the conveying device, the container lid is attached to each of the notches of the rotary turret disk with the gripping piece facing inward in the radial direction of the rotary turret disk. When carried into the notch, the container lid receives the protrusion formed on the skirt portion of the container lid, and when the container lid is conveyed by the rotation of the rotating turret disc, the container lid is There is provided a conveyance device characterized in that a recess is formed in the notch to prevent rotation beyond a predetermined angular range.

According to the conveying device of the present invention, the concave portion provided in the notch receives the convex shape of the container lid, thereby preventing the container lid from rotating beyond a predetermined angular range within the notch. , the above-mentioned problems caused by the rotation of the container lid in the notch are reliably avoided, and thus container lids with radially outwardly projecting gripping pieces can be conveyed in a good manner as required. can.

A more detailed explanation will be given below with reference to the accompanying drawings.

FIG. 1 shows an example of a system in which the conveying device of the present invention is used as a conveying device for conveying container lids through a required path. 1st
The system illustrated in the figure includes a conveying device 2, a heating device 4, a liner material extruder 6, a liner material cutting mechanism 8, an embossing device 10, a conveying device 12, and a liner inspection device 14. The transport device 2 is
It comprises a rotating turret disk 18 which is rotated in the direction of arrow 16 by a suitable drive source (not shown) such as an electric motor, and is provided with a container lid via a suitable means such as a chute 20. 22 is received at position A, and the container lid 22 is transported to position B through an arc-shaped transport path (the configuration of this transport device 2 will be explained in detail later). The heating device 4 is preferably of the induction heating type.
While the container lid 22 is transported by the transport device 2 through the transport path, the container lid 22 is heated to a desired temperature. The liner material extruder 6 having an extrusion port located above the conveyance path extrudes the liner material in a heated and molten state through the extrusion port,
A liner material cutting mechanism 8 having a cutting blade 24 arranged to rotate across the extrusion port cuts the liner material extruded from the extrusion port and is conveyed through the conveyance path. It is distributed at a predetermined position inside the top surface of the container lid 22. The liner material extruder 6 and the liner material cutting mechanism 8 are disclosed in Japanese Patent Publication No. 41-5588 and Japanese Patent Publication No. 42
-20759, the specification and drawings of U.S. Patent No. 3782329, or Japanese Patent Application Laid-Open No. 52-99186, the structure may be substantially the same, and therefore the details of these structures may be Further explanation will be omitted. The embossing device 10 is a rotary embossing device that is continuously driven to rotate in the direction of an arrow 26 in synchronization with the conveying device 2, and is conveyed to the position B by the conveying device 2. Container lid 2
When receiving the container lid 22 and transporting the container lid 22 in the direction of the arrow 26, an embossing tool 28 is inserted into the container lid 22.
(See Figure 2) and press the liner material into the desired shape. The embossing device 10 may have substantially the same configuration as the embossing device disclosed in U.S. Pat. No. 3,278,985 and the drawings, so a detailed description of its configuration will be omitted. . A transport mechanism 12 that may have substantially the same configuration as the transport device 2 described in detail later.
The arrow 30 moves in synchronization with the rotation of the embossing molding device 10.
It is equipped with a rotating turret disk 32 that is continuously driven to rotate in the direction of arrow 30, and conveys the container lid 6 discharged from the embossing device 10 in the direction of the arrow 30 to the liner inspection device 14. The liner inspection device 14 moves along the arrow 34 in synchronization with the conveyance device 12.
It is a rotary device that is continuously driven to rotate in the direction of , and when the container lid 22 carried in by the transport device 12 is transported in the direction of the arrow 34, the inside of the top surface of the container lid 22 is embossed. The formed liner is inspected, and the container lid 22 with the liner formed as required is transported via suitable means such as chute 38 to a desired location, such as a container lid packaging position, while the liner is removed. Container lids 22 that are not properly disposed are discharged via suitable means, such as chute 40, to a bad shell collector (not shown). The configuration of the liner inspection device 14 itself may be the same as that disclosed in Japanese Patent Application Laid-Open No. 56685/1985, and therefore detailed description thereof will be omitted.

In the above system illustrated in FIG.
However, as shown in FIG. 2, in addition to the circular top surface portion 22a and the cylindrical skirt portion 22b hanging down from the periphery of the top surface portion 22a, there is a grip that projects radially outward from the free end of the skirt portion 22b. Piece 22c
If the transport device 2
It is important that the conveying device 6 is improved in accordance with the present invention, since the conventional configuration cannot convey the container lid 22 as required, as described above.

Referring to FIG. 2 together with FIG. 1, a specific example of the structure of the conveying device 2 improved according to the present invention will be described in detail.The conveying device 2 includes a rotating turret disc 18, A drive source (not shown) such as an electric motor for rotating the disc 18 at a predetermined speed in the direction of the arrow 16
It is equipped with A plurality of approximately semicircular notches 42 are formed on the circumferential edge of the rotating turret disk 18 at equal angular intervals. When the rotary turret disk 18 is rotated in the direction of the arrow 16, the container lid 22 passes through the chute 20 at the position A, and the container lid 22 is inserted into the plurality of notches 4.
2 in turn. When the container lid 22 is carried in, the container lid 22 is held by its gripper 22c.
It is important that the notch 42 is introduced with the notch 42 facing inward in the radial direction of the rotary turret disk 18, that is, with the gripping piece 22c positioned forward. The container lid 22 carried into the notch 42 is moved along with the rotation of the rotating turret disk 18, and is thus conveyed to the position B through the arc-shaped conveyance path drawn by the notch 42. Above position A
and position B, a stationary guide member 46 is provided which is arranged outside the rotary turret disk 18 and has an arcuate guide surface 44 located adjacent to the periphery of the rotary turret disk 18, and which allows the container to be While the lid 22 is being transported from the position A to the position B, the portion of the container lid 22 located in the notch 42 that protrudes radially outward from the notch 42 comes into contact with the guide surface 44. This prevents the container lid 22 from falling radially outwardly from the notch 42. Further, although not shown, between the above-mentioned positions A and B, a rotating turret disk 18 is further installed.
An appropriate stationary support member is disposed below the periphery of the notch 42, and the bottom surface (i.e., the outer surface of the top surface) of the container lid 22 carried into the notch 42 is supported by the support member. The container lid 22 is prevented from dropping downward from the container lid 42.

When the conveyance device 2 has only the above-mentioned configuration, that is, when it has the configuration of a conventional conveyance device, the container lid 22 moves from the position A to the position B as the rotating turret disk 18 rotates. When the container lid 22 is conveyed to the center, a part of the container lid 22 comes into contact with the guide surface 44 and a frictional force acts between the two, so that the container lid 22 moves clockwise in the notch 42 in FIG. It is forced to rotate freely. In this way, as can be easily understood from FIG. 2, the gripping piece 22c of the container lid 22 hits the gripping piece 22c or the skirt portion 22b of the container lid 22 located in the adjacent notch 42. , due to this, the container lid 22
The gripping piece 22c or the skirt portion 22b may be damaged or deformed.

In order to avoid such inconveniences, according to the invention, a container lid 2 introduced into the notch 42 is placed inside each of the notches 42 of the rotary turret disk 18.
The gripping piece 22c of the container lid 22 is restrained to prevent the container lid 22 from rotating beyond a predetermined angle in the notch 42 during transportation.
A container lid rotation prevention member 48 is provided to prevent the container lid from rotating to the extent that it collides with the container lid 22 located in the adjacent notch 42.

In the embodiment illustrated in FIGS. 1 and 2, the container lid anti-rotation member 48 for each notch 42 of the rotating turret disk 18 is fixed on the rotating turret disk 18, so that the rotating turret disk It is defined by the peripheral edge of an annular body 50 which is rotated together with the plate 18 in the direction of the arrow 16. That is, on the periphery of the annular body 50, approximately triangular notches are provided on the inner side corresponding to each of the notches 42 of the rotating turret disk 18, the width of which gradually increases toward the outside in the radial direction. A restraining surface 52a and 52b is provided on each side of the notch.
is formed. Such constraining surfaces 52a and 5
2b is inserted into the notch 42 of the rotating turret disk 18 with the holding piece 22c of the container lid 22 facing inward in the radial direction of the rotating turret disk 18 through an appropriate means such as the chute 20 as described above. When carried in, as clearly shown in FIG. 2, the container lid 22 is located adjacent to both side edges of the gripping piece 22c of the container lid 22. Therefore, the notch 4 of the rotating turret disk 18
The container lid 22 carried into the container lid 2 moves from the above position A to the above position B as the rotating turret disk 18 rotates.
When the container lid 22 is transported to
Adjacent to both side edges of c, a container lid rotation prevention member 48
When the container lid 22 tries to rotate in the notch 42, the gripping piece 22c of the container lid 22 comes into contact with the restriction surface 52a or 52b, and therefore the container lid 22 is limited to a predetermined angular range defined by the restraining surfaces 52a and 52b, and thus the container lid 22 rotates beyond the predetermined angular range in the notch 42, and the gripping piece of the container lid 22 22c is reliably prevented from colliding with the gripping piece 22c or skirt portion 22b of the container lid 22 located in the adjacent notch 42.

By the way, in the system as shown in FIG. 1, when the container lid 22 is transported to the above-mentioned position B by the transport device 2, a dashed-dotted line 54 is shown in FIG.
Notch 42 of rotating turret 18 as shown in
circular path (therefore the container lid 2 by the conveying device 2
The embossing tool 28 (FIG. 2) of the embossing molding device 10, which is rotated along a circular path circumscribing the conveyance path No. 2), that is, the circular path indicated by a dashed line 56 in FIG. is inserted into the embossing tool 28
Along with the movement, the container lid 22 is transferred from the conveying device 2 to the embossing forming device 10.

Therefore, as in the specific example shown in FIG.
a restraining surface 52 located adjacent each of the opposite edges of the
a and 52b, and such a constraining surface 52
a and 52b are fixed relative to the rotating turret disk 18, the restraining surfaces 52a and 52b are shaped so as not to impede the removal of the container lid 22 from the conveying device 2 by the embossing tool 28. It is important that

Constraining surfaces 52a and 52 that meet such requirements
The shape of b can be set as appropriate depending on the form of the container lid 22, especially the dimensions of the gripping piece 22c, but for example, as in the specific example shown in FIGS. The restraint surface 52a is
and 52b, the above requirements can be met as understood from FIG. To briefly explain with reference to FIG. 3 together with FIG. 2, as the rotating turret disk 18 rotates, the container lid 22
When it is conveyed to position B along the circular path shown by the dashed-dotted line 54 in FIG. 3, it moves along the circular path that is external to the circular path 54, that is, the circular path shown by the dashed-dotted line 56 in FIG. Embossing tool 28 is inserted into container lid 22 . In this way, the container lid 22
are transferred from the conveying device 2 to the embossing forming device 10 through the positions shown as C to E in FIG.
If a and 52b are in the form shown in FIG. 3, as is clear from FIG.
It is transferred smoothly without being hindered by b.

Next, with reference to FIG. 4, a second specific example of the conveying device 2 according to the present invention will be described. In the embodiment illustrated in FIG. 4, a mounting block 58 is secured on the rotating turret disk 18 at a position inside each of the notches 42 of the rotating turret disk 18, and A container lid rotation prevention member 48, which is composed of separate, approximately Y-shaped members, is attached to the rotary turret disc 18 so as to be movable in the radial direction. A bifurcated arm portion is formed at the radially outer end of each of the container lid rotation prevention members 48, and restraint surfaces 52a and 52b are defined by the inner surfaces of the arm portions. On the other hand, a cam follower 60 is attached to the radially inner end of each of the container lid rotation prevention members 48. The cam follower 60 is engaged with a cam groove 64 cut into a stationary cam plate 62 located above the rotating turret disk 18.

In the conveying device 2 as described above, in the region from the position A (FIG. 1) to the position B, the container lid rotation prevention member 48 is engaged with the cam groove 64 of the cam plate 62. The working position (i.e., the fourth
In the figure, arrow 16 of rotating turret disk 18
(the position occupied by the four container lid rotation prevention members 48 on the upstream side when viewed in the rotational direction shown in ).
When the container lid rotation prevention member 48 is in the operating position, the container lid 2 is placed in the position A (FIG. 1).
2 holds the gripping piece 22c on the rotating turret disk 18.
The turret disk 18 rotates radially inward.
When carried into the notch 42 of the container lid rotation prevention member 48, as shown in FIG.
2a and 52b are located adjacent to both side edges of the gripping piece 22c of the container lid 22, and thus, while the container lid 22 is conveyed from the above position A to the above position B as the rotating turret disk 18 rotates. Container lid 22
is reliably prevented from rotating beyond a predetermined angular range.

On the other hand, when the position B is reached, the cam mechanism consisting of the cam groove 64 of the cam plate 62 and the cam driven joint 60 engaged with the cam groove 64 moves the container lid rotation prevention member 48 radially away from the operating position. The container lid is retracted inward in the non-operating position (that is, in FIG. 4, the three container lid rotation prevention members 48 on the downstream side in the rotational direction indicated by the arrow 16 of the rotating turret disk 18 occupy the non-operating position. position). When the container lid rotation prevention member 48 is placed in the non-operating position, its restraining surfaces 52a and 52b are attached to the container lid 2.
The second gripping piece 22c is not substantially restrained, and therefore, the container lid 22 can be shaped as described above without the movement of the gripping piece 22c being hindered by the restraining surfaces 52a and 52b. Pressing device 1
It is moved along with the movement of the embossing tool 28 of No.
will be transported to. Of course, the container lid rotation prevention member 48 is brought to the non-operating position by the cam mechanism.
is brought to the operating position again by the cam mechanism until reaching the position A (FIG. 1).

In the specific example shown in FIG. 4, the entire container lid rotation prevention member 48 is moved from the operating position to the non-operation position at the position B, but instead of this, the container lid rotation prevention member 48 is The same effect can be obtained even if only the portion defining the restraining surface 52b located at the front of the rotary turret disk 18 in the rotational direction is moved from the operating position to the non-working position. . In addition, in the specific example shown in FIG. 4, the container lid rotation prevention member 4
8 is moved inward in the radial direction from the working position to the non-working position, but instead of this, the container lid rotation prevention member 48 is moved vertically upward, for example, to move it from the working position to the non-working position. It can also be placed in the non-active position.

Next, a third specific example of the conveying device 2 according to the present invention will be described with reference to FIG. In the specific example shown in FIG.
A support block 66 located opposite to the lower surface of the container lid is fixed, and a container lid rotation prevention member composed of separate and independent members is further mounted on the rotating turret disc 18 at a position inside the support block 66. 48 is mounted so as to be pivotable about a shaft 67. The container lid rotation prevention member 48 has an actuating portion 68 located opposite the upper surface of the support block 66 at its radially outer end, and a cam driven joint at its radially inner end. Projection part 70
has. Such a container lid rotation prevention member 48 is
It is elastically biased by a suitable resilient member (not shown) in the direction indicated by arrow 71, i.e. in the direction of its actuating portion 68 away from the upper surface of the support block 66, so that its protrusion 70 is biased toward the rotating turret circle. It is elastically engaged with cam surfaces 74a and 74b formed on the upper surface of the cam cylinder 72 located above the plate 18.

In the conveying device 2 as described above, the container lid 22 is held at the gripping piece 22c at the position A (FIG. 1).
When the container lid 22 is carried into the notch 42 of the rotating turret disc 18, the gripping piece 22c of the container lid 22 is positioned on the support block 66. Then, at the same time as or immediately after the container lid 22 is carried into the notch 42 of the rotating turret disc 18, the protruding portion 70 of the container lid rotation prevention member 48 engages with the high portion 74a of the cam surface. As a result, the container lid rotation prevention member 48 is rotated in the opposite direction to the direction of the arrow 71 against the biasing action of the elastic means (not shown), and is moved to the operating position (i.e., FIG. 5). , the rotating turret disc 18 is placed at the position occupied by the two container lid rotation prevention members 48 on the upstream side when viewed in the rotational direction shown by the arrow 16. When the container lid rotation prevention member 48 is brought to the operating position, the lower surface of the operating portion 68 of the container lid rotation prevention member 48 engages with the upper surface of the gripping piece 22c of the container lid 22, and thus the container lid rotation prevention member 48 The gripping piece 22c of the container lid 22 is gripped between the operating portion 68 and the support block 66, thereby reliably preventing the container lid 22 from rotating. High portion 44 of the cam surface
a continues to the above-mentioned position B, and therefore the container lid rotation prevention member 48 is maintained in the above-mentioned operating position until the above-mentioned position B. Therefore, as the rotating turret disk 18 rotates, the container lid 22 moves from the position A to the position B.
The container lid 22 is reliably prevented from rotating in the notch 42 of the rotating turret disk 18 while being transported to the point where the container lid 22 is transported.

On the other hand, when the position B is reached, the cam cylinder 72
The cam surface of becomes a lower portion 74b, and therefore, the container lid rotation prevention member 48 is pivoted in the direction of arrow 71 by the biasing action of the elastic means (not shown) to the non-operating position (i.e. , in FIG. 5, the position occupied by the two container lid rotation prevention members 48 on the downstream side when viewed in the direction of rotation shown by the arrow 16 of the rotating turret disk 18), and the operating portion 68 thereof is
is separated from the upper surface of the gripping piece 22c of the container lid 22, and thus the gripping of the gripping piece 22c of the container lid 22 is released. Therefore, the container lid 22 has a gripping piece 22c.
As described above, it is moved along with the movement of the embossing tool 28 of the embossing molding device 10 without being hindered from moving, and is carried out from the conveying device 2 and carried into the embossing molding device 10.

In the specific example shown in FIG. 5, the container lid rotation prevention member 48 is biased in the direction of arrow 71 by an appropriate elastic means (not shown), but instead of this, The container lid rotation prevention member 48 is biased in the opposite direction to the direction of the arrow 71 by the elastic means, thereby causing the container lid 22 to be gripped by the actuating portion 68 of the container lid rotation prevention member 48. It is also possible to elastically engage the piece 22c and cooperate with the support block 66 to elastically grip the gripping piece 22c of the container lid 22. In this case, in the region from the position B to the position A, the protrusion 70 of the container lid rotation prevention member 48
The container lid rotation prevention member 48 is pivoted in the direction of the arrow 71 against the biasing action of the elastic member and maintained in the inactive position by the action of a suitable cam surface engaging, for example, the upper surface of the container lid, and At the above position A or a position immediately downstream thereof, the container lid rotation prevention member 48
The action of the cam surface on the protrusion 70 may be released.

By the way, as shown in FIG. 6, in addition to the circular top surface part 22a and the cylindrical skirt part 22b hanging down from the periphery of this top surface part 22a, the skirt part 2
In a container lid 22 having a tensioning gripping piece 22c protruding radially outward from the free end of 2b, the gripping piece 22c of the skirt portion 22b is
In many cases, at least one reinforcing protrusion 76 is formed in a continuous portion (in the container lid 22 shown in FIG. 6, from the skirt portion 22b to the inner end of the gripping piece 22c Two protrusions 76 are formed that extend continuously up to
Furthermore, two protrusions 78 extending perpendicularly to the protrusion 76 are formed at the tip of the gripping piece 22c). When the container lid 22 has the above-mentioned convex strip 76, a conveying device 2 having a configuration as shown in FIG. 7 may be used instead of the conveying device 2 as shown in FIGS. 2 to 5. I can do it.

In the conveying device 2 shown in FIG. 7, a recess 80 is formed in each of the notches 42 of the rotary turret disk 18 in the radial direction. The recess 80 is located in the chute 20 (first
When the container lid 22 is carried into the notch 42 of the rotating turret disk 18 with its gripping piece 22c facing inward in the radial direction of the rotating turret disk 18 through an appropriate means as shown in FIG. A portion of the protrusion 76 located inside the skirt portion 22b is received. Therefore, when the container lid 22 carried into the notch 42 of the rotating turret disk 18 tries to rotate in the notch 42, the protruding strip 76 comes into contact with the side surface of the recess 80, and thus The rotation of the container lid 22 is limited within a predetermined angular range defined by both side surfaces of the recess 80. Therefore, when the container lid 22 carried into the notch 42 of the rotating turret disk 18 at the above-mentioned position A (FIG. 1) is conveyed to the above-mentioned position B as the rotating turret disk 18 rotates, , the container lid 2 in the notch 42
2 rotates beyond the predetermined angle range and the container lid 2
The gripping piece 22c of the container lid 22 or the skirt portion 2 where the gripping piece 22c of the second gripping piece 22c is located in the adjacent notch 42
Collision with 2b is reliably prevented.

The shape of the recess 80 relative to the protrusion 76 is as follows:
At the position B, when the embossing tool 28 of the embossing device 10 carries out the container lid 22 from the conveying device 2 and carries it into the embossing device 10 as described above, the device does not obstruct the movement of the container lid 22. It is important that there be.

In the conveying device 2 shown in FIG. 7, in addition to the recess 80, in order to more reliably prevent the container lid 22 from rotating, it is further provided with the recess 80 shown in FIGS.
It is also possible to provide a container lid rotation prevention member 48 such as that provided in the conveying device 2 shown in the figure or in FIG.

Several specific examples of the conveyance device 2 according to the present invention have been described in detail above, but when the conveyance device 2 according to the present invention is used, containers can be placed at an appropriate position such as position A shown in FIG. It is important that the lid 22 is introduced into the cutout 42 of the rotary turret disk 18 with its gripper 22c facing radially inward of the rotary turret disk 18. Meanwhile, as is well known to those skilled in the art, a container lid 22 contained in a hopper, e.g. When the container lid 22 is closed, the container lid 22 is
It is sent out from the hopper with c facing backwards,
It has a tendency to move through the passage while remaining in this state. Therefore, when the container lid 22 is conveyed directly from the passage into the notch 42 of the rotating turret disk 18 of the conveying device 2 according to the present invention, the container lid 2
2, the gripping piece 22c is attached to the rotating turret disk 18.
The rotary turret disk 18 is carried into the notch 42 with the rotary turret disk 18 facing radially outward rather than radially inward.

In such a case, a container lid reversing mechanism as shown in FIGS. 8 to 10 or 11 to 13 is provided in the passage, and the container lid reversing mechanism is used to The container lid 22 with the holding piece 22c facing backward is turned over so that the holding piece 22c is facing forward, and is then carried into the notch 42 of the rotating turret disc 18 of the conveying device 2 according to the present invention. Just do it.

To explain the structure of the container lid reversing mechanism shown in FIGS. 8 to 10, the container lid reversing mechanism, generally designated by the numeral 82, is operated by the arrow arrow A belt conveyor 86 that is continuously driven in the direction indicated by 84.
and a pair of stationary guide members 88 and 90 disposed above the upper running portion of the belt conveyor 86. A pair of stationary guide members 88 and 90
is arranged parallel to the moving direction 84 of the belt conveyor 86, the upstream part (i.e. the area designated by the number 92) and the downstream part (i.e. the area designated by the number 94) are arranged parallel to the moving direction 84 of the belt conveyor 86. The main portion between them (i.e., the area designated by numeral 96) is arranged at a predetermined angle, for example about 30 degrees, with respect to the direction of movement 84 of the belt conveyor 86. The pair of stationary guide members 88 and 90 is for guiding the skirt portion 22b of the container lid 22 that is located on the belt conveyor 86 and moves between the pair of stationary guide members 88 and 90, as shown in FIG. It has a first guide surface 98 and a second guide surface 100 for guiding the gripping piece 22c of the container lid 22. However, as shown in FIG.
The upper part, ie the part defining said second guiding surface 100, has been removed, allowing the container lid 22 to roll clockwise in FIG. 8 in said main part.

The effects of the container lid reversing mechanism 82 as described above are as follows. The container lid 22 with its gripping piece 22c facing backward is moved between a pair of stationary guide members 88 and 90 according to the movement of the belt conveyor 86, and enters the area shown by number 96 from the area shown by number 92. Because the main portions of the pair of stationary guide members 88 and 90 form a predetermined angle with respect to the moving direction 84 of the belt conveyor 88, the skirt portion 22b of the container lid 22 is connected to the stationary guide member 88. is pressed against said first guide surface 98 of. In this way, the skirt portion 22b of the container lid 22
The friction between the first guide surface 98 of the stationary guide member 88 causes the container lid 22 to
In the figure, a rolling force acts clockwise. Thus, the container lid 22 is rolled clockwise in FIG. 8 as it passes through the area indicated by the number 96. When the container lid 22 is rotated approximately 180 degrees with its gripping piece 22c facing forward, the gripping piece 22c comes into contact with the second guide surface 100 of the stationary guide member 88. This prevents further rolling. In this way, the container lid 22 is forced to have its gripping piece 22c facing forward,
The vehicle enters the area indicated by number 94, and is allowed to advance further while maintaining this state.

In the container lid reversing mechanism 82, one of the pair of stationary guide members 90 is not necessarily required and can be omitted if desired. Also, number 96
In order to further ensure the rolling of the container wall 22 in the area indicated by , the first guide surface 98 in the main part of the stationary guide member 88 may be made of a material with a high coefficient of friction, such as natural or synthetic rubber. It can also be made of bulk material.

Next, the structure of the container lid reversing mechanism shown in FIGS. 11 to 13 will be explained.
The container lid reversing mechanism indicated by 02 is composed of a chute 104 that is inclined downward from upstream to downstream by a predetermined angle, for example, about 30 degrees with respect to the horizontal direction. Such shoot 10
4, as clearly shown in FIG. 12, a first groove portion 106 that accommodates the top surface portion 22a and skirt portion 22b of the container lid 22 passing through the chute 104;
It has a second groove portion 108 for accommodating the gripping piece 22c of the container wall 22. In the area indicated by number 110 in FIG. 11, as shown in FIG. 13, the portion defining the upper surface of the second groove portion 108 is displaced upward (instead of being displaced upward) 11), in which region the container lid 22 is allowed to roll clockwise in FIG.

The effects of the container lid reversing mechanism 102 as described above are as follows. It is introduced into the chute 104 with its top portion 22a upright and its gripping piece 22c facing backward, and its own weight causes it to move inside the chute 104 from upstream to downstream (that is, to the left in FIG. 11). (from right) Moving container lid 22
, the skirt portion 22b is connected to the first groove portion 1.
Since it contacts the bottom surface of 06, its skirt portion 22
Due to the friction between b and the bottom surface of the first groove portion 106, a clockwise rotational force is applied in FIG. 11. Accordingly, when the container lid 22 enters the area designated by numeral 110, the container lid 22 is rolled clockwise in FIG. Container lid 22 is approximately 180 mm
When the gripping piece 22c is rotated many times and the gripping piece 22c is in the forward position, the gripping piece 22c comes into contact with the bottom surface of the second groove portion 108, thereby preventing further rolling. Ru. Thus, the container lid 22
is placed in a state with its gripping piece 22c facing forward, and while maintaining this state, the chute 10 is
We will move further within 4.

In the container lid reversing mechanism 102, the upper half of the chute 104, that is, the portion that defines the upper surfaces of the first groove portion 106 and the second groove portion 108 is not necessarily necessary, and may be omitted if desired. You can also do it. In addition, in order to further ensure the rolling of the container lid 22 in the area indicated by the number 110, at least a portion of the bottom surface of the first groove portion 106 may be made of a material with a coefficient of friction such as natural or synthetic rubber, if necessary. It can also be formed from a large material, and furthermore,
As shown in FIG. 11, one or more (in FIG. Two air injection nozzles 112 can also be arranged as appropriate.

[Brief explanation of drawings]

FIG. 1 is a plan view schematically showing an example of a system in which the conveying device of the present invention is used. FIG. 2 is a partial perspective view showing a first specific example of the conveyance device of the present invention.
FIG. 3 is a simplified diagram for explaining how the container lid is carried out from the conveying device shown in FIG. 2. FIG. 4 is a partial perspective view showing a second specific example of the conveyance device of the present invention. FIG. 5 is a partial perspective view showing a third specific example of the conveying device of the present invention. FIG. 6 is a perspective view showing a specific form of container lid. FIG. 7 is a partial perspective view showing a specific example of the conveying device of the present invention, which can be used to convey the container lid of the form shown in FIG. 6. FIG. 8 is a partial plan view showing a first specific example of a container lid reversing mechanism that can be used in combination with the conveying device of the present invention. FIG. 9 is a sectional view taken along the line - in FIG. 8. FIG. 10 is a sectional view taken along the line - in FIG. 8. FIG. 11 is a partial plan view showing a second specific example of a container lid reversing mechanism that can be used in combination with the conveying device of the present invention. Figure 12 is the line of Figure 11.
Cross-sectional view at XII-XII. FIG. 13 is a sectional view taken along the line - in FIG. 11. 2 and 12... Conveyance device, 18... Rotating turret disc, 22... Container lid, 22a... Top surface portion of container lid, 22b... Skirt portion of container lid, 22c
... Container lid gripping piece, 42 ... Notch in rotating turret disk, 48 ... Container lid rotation prevention member, 76
... Convex strip, 80 ... Recess formed in the notch.

Claims (1)

[Claims] 1. Transportation for a container lid having a circular top surface, a cylindrical skirt portion hanging from the periphery of the top surface portion, and a gripping piece protruding radially outward from the free end of the skirt portion. The device includes a rotating turret disk in which a plurality of substantially semicircular notches are formed at equal angular intervals on the periphery, and a drive source for rotating the rotating turret disk. In the conveying device equipped with the rotary turret disk, inside each of the notches, the holding pieces are directed inward in the radial direction of the rotary turret disk and the conveyance device is inserted into the notch. When the container lid is conveyed by the rotation of the rotating turret disc, the holding piece of the container lid is restrained so that the container lid rotates beyond a predetermined angular range in the notch. A conveyance device characterized in that a container lid rotation prevention member is provided to prevent rotation of the container lid. 2. The container lid rotation prevention member is made of a member fixed to the rotating turret disk and has a restraining surface located adjacent to each side edge of the gripping piece of the container lid carried into the notch. configured, the restraining surface does not impede removal of the container lid from the notch by moving the container lid along a circular path circumscribing a circular path of the notch. The conveying device according to claim 1, wherein the conveying device is shaped into a shape. 3. The container lid rotation prevention member is composed of a member having a restraining surface located adjacent to each of both side edges of the gripping piece of the container lid carried into the notch,
At least the portion of this member that defines the front restraining surface when viewed in the direction of rotation of the rotating turret disc has an active position where the gripping piece of the container lid is restrained and a non-operative position where it is not restrained. The conveyor according to claim 1, wherein the container lid is mounted on the rotary turret disc so as to be movable between the notches, and is moved from the working position to the non-working position when carrying out the container lid from the notch. Device. 4. The container lid rotation prevention member is movable between an active position where it engages with the upper surface of the gripping piece of the container lid carried into the notch and a non-active position where it separates from the upper surface. It is composed of a member attached to a disc, and when the container lid is carried into the notch, it is moved from the inactive position to the working position, and when the container lid is taken out from the notch, the container lid is The conveying device according to claim 1, wherein the conveying device is moved from a working position to the non-working position. 5. It has a circular top surface, a cylindrical skirt hanging from the periphery of the top, and a gripping piece projecting radially outward from the free end of the skirt, and the gripping piece of the skirt A conveying device for a container lid, in which at least one protrusion is formed on the part where the two are connected, and a plurality of approximately semicircular notches are formed at equal angular intervals on the periphery. In a conveying device comprising a rotary turret disc having a rotary turret disc formed thereon and a drive source for rotating the rotary turret disc, each of the notches of the rotary turret disc is provided with a rotary turret disc. When the container lid is carried into the notch with the holding piece facing inward in the radial direction of the rotating turret disc, the ridge formed on the skirt portion of the container lid is received and the rotating turret is A conveyor characterized in that a concave portion is formed to prevent the container lid from rotating beyond a predetermined angular range in the notch when the container lid is conveyed by rotation of a disc. Device.