JP2808354B2 - Rotary container lid body transfer device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rotary container lid main body transporting device for transporting a container lid main body having a projecting piece projecting from a lower end edge of a skirt wall.

(Prior art)

JP-A-57-178730 discloses a container lid composed of a metal container lid main body and a synthetic resin holding ring as a preferred example of a simple-opening type container lid. A container lid body formed from a suitable metal sheet such as an aluminum-based alloy sheet has a circular top wall, a cylindrical skirt wall hanging from the periphery of the top wall, and a projecting piece projecting from a lower edge of the skirt wall. The synthetic resin holding ring is integrally connected to the projecting piece of the container lid body.

Further, JP-A-63-302010 and Japanese Patent Application No. 316503/1999 filed by the applicant of the present application show that the synthetic resin holding ring in the container lid of the above-described embodiment is compression-molded while A compression molding system for integrally connecting to a protruding piece of a lid body is disclosed. In such a system, a rotary container lid body for carrying the container lid body into a compression molding device or a punching device for punching a projecting piece of the container lid body prior to compression molding of a synthetic resin holding ring. A transport device is used.

The rotary container cover main body transport device includes a rotating disk that is rotated about a central axis extending substantially vertically. A plurality of container lid body receiving portions are formed on the outer peripheral surface of the rotary disk at intervals in the circumferential direction. The top surface wall and the skirt wall of the container lid main body are at least partially accommodated in the container lid main body receiving portion with the projecting pieces directed upward, and are conveyed according to the rotation of the turntable.

[Problems of the Related Art] Thus, in the above-described conventional rotary container lid main body transporting apparatus, when the container lid main body accommodated in the container lid main body receiving portion is transported in accordance with the rotation of the turntable, In addition, it is rotated somewhat about the center axis of the top wall and the skirt wall,
As a result, there is a possibility that the container lid body cannot be carried into the compression molding device or the perforating device as required.

[Problem of the Invention]

The present invention has been made in view of the above-mentioned facts, and a main technical problem thereof is to improve the above-described conventional rotary container lid main body transporting device to create a separate disadvantage in transporting the container lid main body. The object is to surely prevent the container lid main body accommodated in the container lid main body receiving portion from rotating during conveyance.

[Solution of the Invention]

The gist of the solution of the present invention for achieving the above technical subject is as follows: (1) A pair of restraining pieces on a rotating disk, that is, a container on the rotating direction upstream side of the rotating disk in relation to each of the container lid receiving portions. An upstream restraining piece having a tip end which can be positioned opposite to one side edge of the projecting piece of the lid body; and (2) arranging the obtained downstream restraint piece;
At least the downstream side restriction piece of each of the pair of restriction pieces,
(3) movably mounted between an operating position in which the distal end thereof is opposed to one side edge of the projecting piece of the container lid body and a retracted position in which the distal end is separated from the projecting piece of the container lid body; And a downstream positioning mechanism for selectively positioning the upstream and downstream restriction pieces at the operation position and the retreat position.

That is, according to the present invention, a rotatable container lid for transporting a container lid body having a circular top wall, a cylindrical skirt wall hanging from a peripheral edge of the top wall, and a projecting piece projecting from a lower edge of the skirt wall. A rotating plate having a plurality of container lid main body receiving portions formed on the outer peripheral surface thereof at intervals in a circumferential direction, wherein the rotating disk is rotated about a central axis extending substantially vertically, and A rotation preventing mechanism for preventing the container lid body accommodated in each of the receiving portions from rotating in the receiving portion, wherein each of the receiving portions formed on the turntable has a protruding piece. The top surface wall and the skirt wall of the container lid body facing upward are at least partially accommodated, and the rotation preventing mechanism is disposed on the turntable in association with each of the receiving portions. Including a pair of constraint pieces, each of the pair of constraint pieces An upstream restraining piece having a tip that can be positioned opposite to one side edge of the projecting piece of the container lid body on the upstream side in the rotation direction of the turntable, and a projecting piece of the container lid body on the downstream side in the rotation direction of the turntable. And a downstream restraint piece having a tip that can be positioned opposite the other side edge, and at least the downstream restraint piece of each of the pair of restraint pieces has a tip portion of the container lid body. The rotation preventing mechanism is movably mounted on the turntable between an operating position located opposite to one side edge of the protruding piece and a retracted position in which the tip end is separated from the protruding piece of the container lid body. Further includes a downstream-side restricting piece positioning mechanism for selectively positioning each of the downstream-side restricting pieces at the operating position and the retracted position. Is done.

Each of the upstream restraining pieces of the pair of restraining pieces also has an operating position where the tip is located opposite to one side edge of the projecting piece of the container lid body and a retracted position where the tip is separated from the projecting piece of the container lid body. And the rotation preventing mechanism further includes an upstream restricting piece for selectively positioning each of the upstream restricting pieces at the operating position and the retracted position. Preferably, a positioning mechanism is included.

[Function of the invention]

In the rotary container lid main body transfer device of the present invention, the projecting piece of the container lid main body accommodated in the container lid main body receiving portion is sandwiched between the pair of restraining pieces, and thus the rotation of the container lid main body is reliably prevented. You. For example, when the container lid main body is received in the container lid main body receiving portion, at least the upstream restricting piece of the pair of restricting pieces can be retracted from the operation position to the retracted position if necessary. When the container lid main body is accommodated in the main body receiving portion, no inconvenience is separately generated due to the arrangement of the pair of constraint pieces.

(Preferred embodiment of the invention)

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a rotary container cover main body transport device configured according to the present invention will be described in further detail below with reference to the accompanying drawings.

FIG. 1 illustrates a compression molding system in which two preferred embodiments of a rotary container lid main body transport device configured according to the present invention are employed. This system is the first
, A rotary container lid main body transport device 2, a perforation device 4, a second rotary container lid main body transport device 6, and a compression molding device 8.

2A and 2B show an example of the container lid main body 10 carried into the perforating device 4 from the transport position 2. FIG.
The container lid body 10, which can be formed from an appropriate metal sheet such as an aluminum-based alloy sheet, a chromic acid-treated steel sheet, or a tin sheet, has a circular top wall 12, a cylindrical skirt wall 14 hanging from the periphery of the top wall 12. , And a connecting protruding piece 16 protruding from the lower edge of the skirt wall 14. Projection piece 16
Is preferably inclined downward from the lower edge of the skirt wall 14 at an inclination angle α that may be about 15 to 60 degrees and projected radially outward. On both sides of the base end of the protruding piece 16, a substantially triangular notch 18 is formed in the skirt wall 14, and a breaking line 20 extending upward from the notch 18 is formed. Furthermore, from the center in the circumferential direction of the projecting piece 16 to both sides in the circumferential direction.
At each of the 90-degree angled portions, a break line 22 extending upward from the lower edge of the skirt wall 14 is formed. Break lines 20 and 22 may be so-called scores or slits. The periphery of the top wall 12 is raised upward, and an annular liner 24 made of synthetic resin is provided on the inner surface of the raised portion.
Are arranged.

Referring to FIG. 3 together with FIG. 1, the first rotary container lid main body transfer device 2 will be described. The illustrated transfer device 2 has a central axis extending substantially vertically (perpendicular to the plane of FIG. 1). It has a turntable 26 rotatably mounted about its center. This rotating disk 26, which may be annular, is driven by an appropriate drive source (not shown),
Are continuously driven to rotate in the direction indicated by. As clearly shown in FIG. 3, additional members are provided on the outer periphery of the turntable 26 by appropriate fixing means (not shown) such as fastening bolts.
30 has been fixed. The additional member 30 has a horizontal annular portion 32 extending along the lower surface of the turntable 26 and an upright annular portion 34 extending along the lower half of the outer peripheral surface of the turntable 26. The upright annular portion 34 of the additional member 30 is formed with a container lid main body receiving portion 36 at equal intervals in the circumferential direction. Each of the container lid main body receiving portions 36 is formed of a concave portion whose upper surface is open, and the bottom surface of the upstream half thereof in the rotation direction indicated by the arrow 28 of the turntable 26 covers an angle range of approximately 90 degrees. The bottom surface of the downstream half is tangentially extended upward from the lowermost end of the upstream half to the downstream side with respect to the arc shape. In the specific example shown in the drawings, the container lid main body receiving portion 36 is formed on the additional member 30 and the additional member 30 is fixed to the turntable 26 from the standpoint of ease of manufacture and the like. The container lid main body receiving portion 36 may be formed on the outer peripheral surface of the 26 itself. On the outer peripheral surface of the turntable 26, there is formed an annular groove 38 extending continuously above the upper end edge of the upright annular portion 34 of the additional member 30 in the circumferential direction. The conveying device 2 is also provided with a stationary guide 40 that extends along the outer peripheral surface of the rotary disk 26 in an arc shape outside the rotary disk 26.

It is important that the transport apparatus 2 configured according to the present invention includes a rotation preventing mechanism 42 in addition to the above-described configuration. Continuing the description with reference to FIG. 3, a mounting member 43 is provided on the upper surface of the turntable 26 corresponding to each of the container lid body receiving portions 36. The mounting member 43 has a fan-shaped horizontal portion 44 and an upright portion 46 extending upward from a radially inner end of the horizontal portion 44. Three guide blocks 48, 50 and 52 are arranged on the radially outer portion of the horizontal portion 44. The mounting member 42 and the guide blocks 48, 50 and 52 are fixed at required positions by screwing a fastening bolt 54 to the turntable 26 therethrough. As clearly understood by referring to FIG. 4 together with FIG. 3, a guide groove 56 having a substantially inverted T-shaped cross section is defined between the guide block 48 and the guide block 50, A guide groove 58 having a substantially inverted T-shaped cross section is defined between the guide block 50 and the guide block 52. These guide grooves
56 and 58 extend substantially radially parallel to one another (fifth
See also FIG. 6 and FIG. 6). A sliding block 60 is slidably inserted into the guide groove 56, and a sliding block 62 is slidably inserted into the guide groove 58. An upstream restraining piece 64 protruding outward in the radial direction is integrally formed at the front end of the sliding block 60, and a downstream restraining piece 66 protruding outward in the radial direction is integrally formed at the front end of the sliding block 62. Have been.
Although the upstream side restriction piece 64 and the downstream side restriction piece 66 may be substantially rectangular, it is preferable that the upstream edge 68 of the distal end portion of the downstream side restriction piece 66 is inclined downstream toward the front end. At the rear end of the sliding block 60, a rod 70 extending inward in the radial direction is integrally formed, and at the rear end of the sliding block 62, a rod 72 extending inward in the radial direction is integrally formed. The rear end of the rod 70 projects rearward through an opening formed in the upright portion 46 of the mounting member 43, and a nut 74 is screwed to the rear end. Similarly, the rear end of the rod 72 also projects rearward through an opening formed in the upright portion 46 of the mounting member 43, and a nut 76 is screwed to the rear end. Further, a compression coil spring 78 located between the upright portion 46 of the mounting member 43 and the main portion of the sliding block 60 is fitted to the rod 70, and the upright portion 46 of the mounting member 43 and the sliding block The compression coil spring 80 located between the main part 62 and the main part 62 is fitted. Compression coil spring
Numeral 78 designates an elastic biasing means for forcing the sliding block 60 radially outward. The upstream restraining piece 64 is placed in the illustrated operating position (in this position, the nut 74 is brought into contact with the upright portion 46 of the mounting member 43). The sliding block 60 is further prevented from moving outward in the radial direction. The compression coil spring 80 constitutes an elastic biasing means for forcing the sliding block 62 outward in the radial direction, and the downstream restraint bias 66 is moved to the operation position shown in FIG.
(The sliding block 62 is prevented from further moving outward in the radial direction). As will be apparent from the following description, in the first rotary container lid main body transporting device 2, the upstream side restriction piece 64 does not need to be moved from the above-mentioned operation position, and therefore, the sliding block 60 is slidably mounted. (In the specific example shown in the figure, the components of the first rotary container lid main body transfer device 2 can be moved freely between the operating position and the retracted position with the upstream restraining piece. The sliding block 60 is also slidably mounted so as to be shared with the components of the second rotary container lid main body transfer device 6 which need to be provided.) As will be further described later, when the upstream restraining piece 64 and the downstream restraining piece 66 are located in the above-described operation position, their distal ends are formed of the container lid main body 10 accommodated in the container lid main body receiving portion 36. Holds the protruding piece 16, that is, the upstream restraining piece
Reference numeral 64 denotes a downstream restraining piece that is located opposite the upstream edge of the protruding piece 16.
66 is located opposite to the downstream edge of the projecting piece 16.

The rotation prevention mechanism 42 includes the pair of restraining pieces, that is, the upstream restraining pieces, which are disposed in association with each of the container lid main body receiving portions 36.
In addition to the 64 and the downstream restraining piece 66, a cam means for selectively positioning the downstream restraining piece 66 at the retracted position shown in FIGS. 3 and 5 is included. The cam means cooperates with the compression coil spring 80 to constitute a downstream restraint positioning mechanism. As shown in FIG. 3, a cam roller 82 is rotatably mounted on the upper surface of the sliding block 62. As shown in FIGS. 1 and 3, two arc-shaped stationary cams 84 acting on the cam rollers 82 are provided above the turntable 26.
And 86 are provided. The cams 84 and 86 are supported at a required position above the turntable 26 by a suitable support member (not shown). As will be understood by referring to FIGS. 3 and 5, when the sliding block 62 is brought into a required area, that is, the container lid main body receiving area 88 and the container lid main body discharge area 90 according to the rotation of the turntable 26, the cam is moved. 84 and 86
Acts on the gum roller 82, forcing the sliding block 62 radially inward against the elastic biasing action of the compression coil spring 80, and thus the downstream restraining piece 66 is retracted as shown in FIGS. 3 and 5. Be positioned. In the retracted position, the distal end of the downstream side restriction piece 66 is separated rearward from the container lid main body receiving portion 36. In the illustrated example,
The downstream restraining piece 66 (and the upstream restraining piece 64) is elastically biased to the operating position by the compression coil spring 80 (and the compression coil spring 78), and is moved to the retracted position by the cam means (cams 84 and 86). However, if desired, the downstream restraining piece 66 (and the upstream restraining piece 6
4) may be resiliently biased to the retracted position and positioned in the operative position by the cam means.

Next, the operation of the first rotary container lid main body transfer device 2 will be described with reference to FIGS. In the container lid main body receiving area 88, a carry-in chute 92 (FIG. 1, FIG.
FIG. 5 and FIG. 5) are disposed, and when the container lid main body receiving portion 36 disposed on the rotary disk 26 passes through the container lid main body receiving area 88, the container lid main body receiving portion is moved from the carry-in chute 92. The container lid body 10 is carried into the container 36. As shown in FIG. 3, the container lid main body 10 is loaded into the container lid main body receiving portion 36 with the inner surface of the top wall 12 facing outward in the radial direction and the protruding pieces 16 facing upward. Is done. As shown in FIGS. 3 and 5, in the container cover main body receiving area 88, the stationary cam 86 is provided.
Acts on the cam roller 82 so that the downstream restraining piece 66
Is moved to the retracted position, and the container lid main body 10 is not interfered by the downstream side restraining piece 66, and moves in the direction indicated by the arrow 28 of the container lid main body receiving portion 36 in accordance with the movement of the container lid main body receiving portion 36.
From the downstream side to gradually enter the container lid main body receiving portion 36. The upstream restraining piece 64 is projected to the operation position, and the downstream edge of the distal end thereof is located opposite to one side edge of the protruding piece 16 of the container lid body 10 that has entered the container lid body receiving portion 36. . When the container lid main body 10 is carried into the container lid main body receiving section 36 as required, and the container lid main body receiving section 36 passes through the container lid main body receiving area 88, the cam roller 82 is separated from the stationary cam 88, and therefore the compression coil Due to the elastic biasing action of the spring 78, the downstream restraining piece 66 is protruded to the operating position. Thus, the distal end upstream edge 68 of the downstream restraining piece 66 is located opposite to the other side edge of the projecting piece 16 of the container lid main body 10, and therefore, the projecting piece 16 of the container lid main body 10 is And the downstream side restraining piece 66, thereby reliably preventing the container lid body 10 from rotating in the container lid body receiving portion 36. Even if the container lid body 10 is slightly rotated clockwise as viewed from the outside in the radial direction before the downstream restriction piece 66 is protruded to the operation position, the downstream restriction piece 66 protrudes to the operation position. When being squeezed, the distal end upstream edge 68 inclined toward the downstream side toward the distal end of the downstream restraining piece 66 acts on the other side edge of the projecting piece 16 of the container lid body 10 to cause the container lid body The container 10 is gradually rotated in a counterclockwise direction, and thus the container lid body 10 is corrected to a required angle state. As shown in FIG. 1, the stationary guide 40 provided in relation to the turntable 26 extends from an upstream side of the container lid receiving area 88 to an upstream side of the container lid main body discharging area 90. The container lid body 10 extends from the container lid body receiving area 88 to the container lid body discharge area 90.
When is transported, the container guide body 10 is prevented from dropping radially outward from the container cover body receiving portion 36 due to the restricting action of the stationary guide 40.

When the container lid main body receiving portion 36 passes through the container lid main body discharge area 90, as can be understood from FIGS. 1 and 7, the stationary cam 86 acts on the cam roller 82, and the downstream side restriction piece 66 is retracted. Be forced into position. The stationary guide 40 disposed in relation to the turntable 26 is terminated on the upstream side of the container lid main body discharge area 90. In the container lid discharge area 90, the stationary guide 94 in the punching device 4 is provided. Is inserted into the annular groove 38 of the turntable 26, and thus to the rear of the container lid body 10 accommodated in the container lid receiving portion 36. In the container lid main body discharge area 90, this stationary guide
By the action of the upstream end portion of the container 94, the container lid body 1 is forcibly ejected radially outward from the container lid receiving portion 36 of the rotary disk 26 of the first rotary container lid main body transfer device 2, and is discharged. Is transferred to During such transfer, the upstream restraint
64 continues to protrude to the operation position, but since the downstream side restriction piece 66 is moved to the retracted position, the transfer of the container lid body 10 is not interfered by the upstream side restriction piece 64 and the downstream side restriction piece 66. From the container lid main body receiving area 88 to the container lid main body discharge area 90, the container lid main body 10 is continuously conveyed while being restrained at a required angle state by the restraining action of the upstream restraining piece 64 and the downstream restraining piece 66, and thus is sufficiently stable. And is carried into the perforation device 4 at a required angle.

Continuing with FIG. 1, the drilling device 4 in the illustrated system includes a substantially vertically extending stationary support shaft 96.
And a rotary support rotatably mounted on the stationary support shaft 96
It has 98. A plurality of container lid body receiving tables 100 are arranged at equal intervals in the circumferential direction on the rotating support 98,
The container cover main body 10 carried in from the first rotary container cover main body transfer device 2 is placed on the container cover main body receiving table 100.
The rotating support 98 is further provided with a piercing tool assembly (not shown) corresponding to each of the container lid main body receiving tables 100. Such a piercing tool assembly is connected to the container lid
It is mounted above and below 0 so that it can move up and down. Rotary support 98
Is continuously rotated in a direction indicated by an arrow 102 by an appropriate rotary drive source (not shown) such as a transmission motor, and corresponds to the container lid main body discharge area 90 of the first rotary container lid main body transfer device 2. Container lid main body receiving area 104 positioned
The container lid body 10 carried into the container lid body receiving table 100 at
Is rotated by the rotation of the rotating support 98, so that the container lid main body discharge area 10
It is transported to 6. In the meantime, the piercing tool assembly acts on the container lid body 10 to pierce, for example, three holes 107 in the projecting piece 16 of the container lid body 10 as shown by a two-dot chain line in FIG. 2-A. In the container lid body discharge area 106, the projecting piece 16
The container lid body 10 in which the hole 107 is pierced is discharged from the punching device 4 and is carried into the second rotary container lid body transfer device 6. Thus, the configuration of the drilling device 4 itself is described in, for example,
No. 15237 or Japanese Patent Application No. 1-121361 filed by the present applicant (filing date: May 2001)
(17th, title of invention: punching device) may be disclosed in the specification and drawings, and the detailed description is left to these disclosures and is omitted in this specification.

Continuing the description with reference to FIG. 1, the second rotary container lid main body transporting device 6 is different from the first rotary container lid main body transporting device 2 in the following two points, and other configurations are the same as those of the first rotary container lid main transporting device. Is substantially the same as the rotary container lid main body transfer device 2. First
And the second rotary container lid main body transport device 6 from the punching device 4.
The transfer of the container lid body 10 to the container lid body 10 is performed in substantially the same manner as the transfer of the container lid body 10 from the first rotary container lid body transfer device 2 to the punching device 4. For this purpose, the upstream end of the stationary guide 40 of the second rotary type container lid main body transfer device 6 is formed on the peripheral surface of the container lid main body receiving base 100 in the container lid main body discharge area 106 of the punching device 4. (In the first rotary-type container cover main body transfer device 2, the rotary groove 26 may have the same shape as the annular groove 38). The stationary guide 94 of the perforation device 4 is located in the container lid body discharge area.
In the container lid main body discharge area 106, the stationary guide 40 of the second rotary container lid main body transport device 6 acts to move the container from the container lid main body receiving table 100 of the punching device 4. The lid main body 10 is discharged, and the second rotary type container lid main body transporting device 6, more specifically, its rotating disk 26
Is carried into the container lid main body receiving portion 36 formed in the container lid. Second, as shown in FIG. 8, in the second rotary container lid main body transport device 6, a cam roller 108 is rotatably mounted also on the upper surface of the sliding block 60 on which the upstream side restriction piece 64 is formed. Have been. A stationary cam 110 located above the turntable 26 is disposed in the container lid main body discharge area 114 of the second rotary container lid main body transport device 6 in correspondence with the cam roller 108.

Referring to FIG. 1 and FIG. 8, in the second rotary container lid main body transporting device 6, the container lid main body receiving region 112 corresponding to the container lid main body discharge region 106 of the punching device 4 is pierced. The container lid body 10 discharged from the device 4 is moved inward from the outside in the radial direction to the container lid body receiving portion.
It is carried into 36. At the time of such loading, the upstream restraining piece 64
Is projected to the operating position, but the stationary cam 84 acts on the cam roller 82 to move the downstream restraining piece 66 to the retracted position, and the upstream restraining piece 64 and the downstream restraining piece 66 The transfer of the lid body 10 is not hindered. When the rotation of the turntable 26 in the direction indicated by the arrow 28 causes the container lid main body receiving portion 36 to leave the container lid main body receiving area 112, the cam roller 82 is separated from the stationary cam 84, and the downstream side restriction piece 66 also projects to the operation position. Therefore, the projecting piece 16 of the container lid main body 10 is sandwiched between the upstream side restriction piece 64 and the downstream side restriction piece 66, and the rotation of the container lid main body 10 is reliably prevented. When the container lid main body receiving portion 36 passes through the container lid main body discharge area 114 due to the rotation of the turntable 26, the stationary cam 86 acts on the cam roller 82 to move the downstream side restriction piece 66 to the retracted position, and The cam 110 acts on the cam roller 108 to move the upstream restraining piece 64 to the retracted position (the reason why the upstream restraining piece 64 is also moved to the retracted position will be described later). The stationary guide 40 in the second rotary container lid main body is terminated on the upstream side of the container lid main body discharge area 114, and in the container lid main body discharge area 114, the upstream end of the stationary guide 116 in the compression molding device 8 Are inserted into the annular groove 38 of the turntable 26. Such a stationary guide 116
The container lid main body 10 is discharged from the container lid main body receiving portion 36 of the turntable 26 of the second rotary type easy lid transfer device 6 by the action of the upstream end of the container, and is transferred to the compression molding device 8.

Continuing the description with reference to FIG. 1, the compression molding apparatus 8 in the illustrated system includes a rotary compression molding unit 118, a resin material supply unit 120, and a discharge unit 122. The compression molding means 118 includes a stationary support shaft 124 extending substantially vertically, and a rotary support 126 rotatably mounted on the support shaft 124. A plurality of molds 128 are arranged on the rotary support 126 at equal intervals in the circumferential direction. As shown in FIG. 8, each of the molds 128 includes a lower mold part 130,
The container lid body 10 is carried onto the lower mold part 130. The lower mold part 130 is formed with a pair of protrusions 132 which are located on both sides of the projecting piece 16 of the container lid body 10 carried therein and which prevent the container lid body 10 from rotating. In the container lid discharge area 114 of the second rotary container lid main body transport device 6, the upstream restraining piece 64 of the second rotary container lid main body transport device 6 is protruded to the operation position without being retracted to the retracted position. If the end of the upstream restraining piece 64 is a compression molding device,
It collides with the projection 132 formed on the lower mold 130 of the compression molding means 118 in FIG. Therefore, in the second rotary container lid main body transport device 8 in the illustrated example, in the container lid main body discharge region 114, not only the downstream side restriction pieces 66 but also the upstream side restriction pieces 64 are forced to the retreat position. ing.

Continuing with reference to FIG. 1, the rotary compression molding device 118 is continuously rotated in the direction indicated by arrow 134,
As a result, each of the molding dies 128 is
6. It is conveyed sequentially through the resin material receiving area 138, the compression molding area 140, and the discharge area 142. Container lid body discharge area 114 in the second rotary container lid body transport device 8
In the container lid main body receiving area 136 corresponding to the above, the container lid main body 10 is carried into the lower mold portion 130 of the molding die 128 as described above. In the resin material receiving area 138, a synthetic resin material in a heated and molten state is supplied to the molding die 128. When the molding die 128 is conveyed through the compression molding region 140, the synthetic resin material is compression molded into a required ring shape, and is connected to the projecting piece 16 of the container lid body 10. Then, in the discharge area 142, the container lid provided with the synthetic resin ring is discharged from the mold 128. The discharging means 122 is constituted by a transport belt mechanism including an endless transport belt 146 driven in a direction indicated by an arrow 144. Above the endless transport belt 146, a switching lever 148 that is selectively positioned between a non-operation position indicated by a solid line and an operation position indicated by a two-dot chain line is provided. The container lid manufactured as required
When the sheet is discharged from 8 to the endless transport belt 146, the switching lever 148 is positioned at the non-operation position indicated by the solid line. In this case, the container lid discharged onto the endless transport belt 146 is transported by the endless transport belt 146 to a required area (for example, an inspection / counting / packaging area). On the other hand, when the container lid discharged from the molding die 128 is an incomplete defective product, the switching lever 148 is positioned at the operation position indicated by the two-dot chain line. In this case, the container lid discharged onto the endless transport belt 146 is not transported on the endless transport belt 146, and the collection box 1 is operated by the operation of the switching lever 148.
Introduced within 50.

9-A and 9-B illustrate a container lid having a synthetic resin gripping ring 152 molded as required by compression molding means 118. The grip ring 152, which is compression molded from a suitable synthetic resin such as polypropylene or polyethylene, has a base 154 and a ring-shaped portion 156 extending downward from the base 154. Base 15 of gripping ring 152
Reference numeral 4 surrounds the projecting piece 16 of the container lid body 10 and is integrally connected thereto. The synthetic resin molded into the holding ring 152 also flows into the hole 107 formed in the projecting piece 16 of the container lid body 10 and is hardened.
Is sufficiently firmly connected to the projecting piece 16 of the container lid body 10.

The configuration of the rotary compression molding means 118 in the illustrated compression molding apparatus 8 is disclosed in Japanese Patent Application Laid-Open No. 63-302010 or Japanese Patent Application No. 63-279495 filed by the present applicant (filing date: Showa 1980).
(November 7, 631, title of invention: compression molding apparatus) may be in the form disclosed in the specification and drawings, and the configuration of the resin material supply apparatus 120 is disclosed in Japanese Patent Application No. Hei. 316
No. 508 (filing date: December 7, 1999, title of invention: compression molding apparatus) may be in the form disclosed in the specification and the drawings. Therefore, the details of these structures are left to the above disclosure, It is omitted in this specification.

〔The invention's effect〕

ADVANTAGE OF THE INVENTION According to the container lid main body conveyance apparatus of this invention, the container lid main body is reliably prevented from rotating during conveyance, and thus the required angular position of the container lid main body carried in the required angle state is reliably maintained. It can be conveyed to the required device (perforator or compression molding device), and therefore the container cover main body transfer device of the present invention, in particular, pierces a hole in the projecting piece of the container cover main body, and then makes a synthetic resin holding ring. Can be advantageously used in a compression molding system that is simultaneously connected to the projecting piece of the container lid body by compression molding.

[Brief description of the drawings]

FIG. 1 is a simplified cross-sectional view illustrating a compression molding system in which two preferred embodiments of a container lid main body transport device configured according to the present invention are used. FIG. 2-A and FIG. 2-B are a perspective view and a sectional view, respectively, showing the container lid body. FIG. 3 is a partial oblique view showing a part of a first rotary container lid main body transfer device used in the system of FIG. 1; FIG. 4 is a partial vertical cross-sectional view of the container cover main body transfer device of FIG. FIGS. 5, 6, and 7 are partial plan views each showing a part of the container cover main body transporting device of FIG. FIG. 8 is a partial perspective view showing a part of a second rotary container lid main body transporting device used in the system of FIG. 1, and FIGS. 9-A and 9-B are containers respectively. The oblique view and sectional view showing the container lid which has a lid main part and the synthetic resin grasping ring connected with the projection piece. 2 First rotary container lid main body transport device 4 Perforating device 6 Second rotary container lid main body transport device 8 Compression molding device 10 Container lid main body 12 Top wall 14 ... Skirt wall of container lid body 16 ... Projecting piece of container lid body 26 ... Rotating plate 36 ... Container lid body receiving part 42 ... Rotation prevention mechanism 64 ... Upstream side restraining piece 66 ... Downstream Side restraining piece 78: Compression coil spring (elastic biasing means) 80: Compression coil spring (elastic biasing means) 82: Cam roller (cam means) 84: Static cam (cam means) 86: Static cam (cam means) 88: Container lid main body receiving area 90: Container lid main body discharging area 92: Loading chute 108: Cam roller (cam means) 110: Static cam (cam means) 112: Container lid main body receiving area 114 Container lid body discharge area 152 …… Grip ring

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hideki Yajima 2-12 Nagatoro, Hiratsuka-shi, Kanagawa Prefecture Japan Hiratsuka Plant Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) B21D 43 / 14 B21D 51/46

Claims (4)

(57) [Claims] 1. A rotary container lid main body transporting device for transporting a container lid main body having a circular top wall, a cylindrical skirt wall hanging from a peripheral edge of the top wall, and a projecting piece projecting from a lower edge of the skirt wall. A rotating disk having a plurality of container lid main body receiving portions formed on an outer peripheral surface thereof at intervals in a circumferential direction, the rotating disk being rotated about a center axis extending substantially vertically, and A rotation preventing mechanism for preventing the container lid body accommodated therein from rotating in the receiving portion, wherein each of the receiving portions formed on the rotary disk has a projecting piece directed upward. The top surface wall and the skirt wall of the container lid main body in a closed state, wherein the rotation preventing mechanism is a pair of restraints disposed on the turntable in association with each of the receiving portions. And each of the pair of restraining pieces is An upstream restraining piece having a tip portion which can be positioned opposite to one side edge of the projecting piece of the container lid body on the upstream side in the rolling direction, and the other side edge of the projecting piece of the container lid body on the downstream side in the rotating direction of the turntable. And a downstream restraint piece having a distal end portion that can be positioned to face the at least one of the pair of restraint pieces, at least the downstream restraint piece of each of the pair of restraint pieces,
The tip is movably mounted on the turntable between an operating position in which the tip is opposed to one side edge of the projecting piece of the container lid body and a retreating position in which the tip is separated from the projecting piece of the container lid body. Wherein the rotation prevention mechanism further includes a downstream restriction piece positioning mechanism for selectively positioning each of the downstream restriction pieces at the operating position and the retreat position. -Type container lid main body transfer device. 2. The upstream restraining piece of each of the pair of restraining pieces also has an operation position where the tip is located opposite to one side edge of the projecting piece of the container lid body, and the tip portion is a projecting portion of the container lid body. The rotation preventing mechanism further selectively moves each of the upstream restraining pieces to the operating position and the retracted position. 2. The rotary container lid main body transporting device according to claim 1, further comprising an upstream restraining piece positioning mechanism positioned at the position. 3. The positioning mechanism for positioning the downstream restraint piece and the upstream restraint piece, respectively, resiliently biases each of the downstream restraint pieces and each of the upstream restraint pieces to the operating position. 3. A biasing means, and cam means for forcing each of said downstream restraining pieces and each of said upstream restraining pieces to said retracted position against an elastic biasing action of said elastic biasing means. The rotary container lid main body transfer device according to claim 1. 4. The device according to claim 1, wherein the upstream edge of the distal end of each of the downstream restriction pieces of the pair of restriction pieces is inclined downstream toward the front end. Rotary container lid body transport device.