JPH0985683A - Method and device for forming axial break line on synthetic resin container lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely progress break from an axial break line in opening of a container by forming the axial break line in a container lid as a slit after mounting of the container lid on the container. SOLUTION: After a container lid 200 is mounted on an opening part of a container 120, an axial cutting blade of an axial cutting blade unit is reciprocated so that an axial break line 202 is formed as a split in the outer circumferential face of a tamper evident base 108. A circumferential break line 204 is formed beforehand in the tamper evident base 108 of the container lid 200. The axial break line 202 formed as a split is formed in such a state as extending substantially vertically from the top end positioned in an upper part than the circumferential break line 204 to the bottom of the tamper evident base 108. This constitution allows the break to surely progress from the axial break line in opening of the container in opening of the container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin container lid applied to the opening of a container, and more particularly to a method for forming an axial breaking line in a synthetic resin container lid having tamper-evidence characteristics. Regarding the device.

[0002]

As is well known to those skilled in the art, synthetic resin container lids having tamper-evidence characteristics are widely used as container lids applied to containers for beverages and the like.
A typical example of this kind of container lid will be described with reference to FIGS. The container lid 100 has a top surface wall 102 and a cylindrical skirt wall 104 that hangs from the peripheral edge of the top surface wall 102. A circumferential breaking line 105 extending in the circumferential direction is formed on the skirt wall 104, and the skirt wall 104 has a main portion 106 above the circumferential breaking line 105 and a tamper shrimp below the circumferential breaking line 105. It is partitioned into a dent skirt 108. Circumferential breaking line 105
Is a plurality of bridging portions 11 arranged at intervals in the circumferential direction.
0, the tamper-evidence skirt 108 is connected to the main portion 106 of the skirt wall 104 via a plurality of bridges 110. The circumferential breaking line 105 is formed in a discontinuous form leaving a part of the entire circumference.
Since the non-formation portion of No. 05 is not cut at all, the non-breaking bridging portion 1 whose strength is increased as compared with the other bridging portions 110.
10A is specified. A female screw 112 is formed on the inner peripheral surface of the main portion 106 of the skirt wall 104, and a locking means, for example, a tamper-evidence hem portion spaced apart in the circumferential direction is formed on the inner peripheral surface of the tamper-evidence skirt 108. A locking flap piece 114 is formed to project inward in the radial direction from the inner peripheral surface of 108.

The tamper evidence skirt 108 is further formed with a single axial break line 115. The axial break line 115 extends substantially vertically from the upper end located above the circumferential break line 105 to the lower end of the tamper-evident skirt 108. The non-breakage bridging portion 110A is formed on the opening rotation direction side of the container lid 100 with respect to the container 120 (counterclockwise side when viewed from above in FIGS. 10 and 11) with respect to the axial breaking line 115.

A container 1 to which the above-mentioned container lid 100 is attached
A male screw 122 and a locking jaw portion 124 located below the male screw 122 are formed on the outer peripheral surface of the opening of 20. 1
Reference numeral 25 denotes an annular flange, which is formed below the locking jaw portion 124. When the container lid 100 is attached to the opening to seal the opening, the opening is covered with the container lid 100 and rotated in the closing rotation direction (clockwise when viewed from above in FIGS. 10 and 11). The female screw 112 of the container lid 100 is engaged with the male screw 122 of the opening. The locking flap piece 114 formed on the tamper-evident skirt 108 of the container lid 100 elastically deforms or displaces to pass through the locking jaw 124 of the opening, and then elastically restores to engage. It is locked to the lower surface of the stop jaw 124.

To open the container 120, the container lid 1
00 is rotated in the opening rotation direction. Since the female screw 112 of the container lid 100 is moved along the male screw 122 of the opening, the container lid 100 is moved upward with the rotation in the opening rotation direction. However, since the locking flap piece 114 formed on the tamper-evident skirt 108 is locked to the locking jaw 124 of the opening, the tamper-evident skirt 108 is prevented from rising. Due to this, the bridging portion 110 at the circumferential breaking line is all broken except the non-breaking bridging portion 110A, and also
Since the axial breaking line 115 is broken, the tamper-evidence skirt 108 is expanded from the endless annular shape to the endless belt shape, and the locking flap piece 114 is released from the locking jaw portion 124 of the opening. After that, in accordance with the rotation of the container lid 100 in the opening rotation direction, the non-breaking bridging portion 1
Container lid 1 including a tamper-evidence skirt 108 connected to the main portion 106 of the skirt wall 104 via 10A.
The entire 00 is lifted, removed from the opening, and the opening is opened.

In the container lid 100 of the above-mentioned form, usually, the container lid 100 in a state in which the circumferential break line 105 and the axial break line 115 are not formed is formed by injection molding or compression molding from an appropriate synthetic resin, In the subsequent cutting process, a cutting blade is applied to the container lid 100 to perform the required cutting, and the circumferential break line 105 and the axial break line 115 are formed. That is, the circumferential breaking line 105 is the same as the container lid 10.
Formed by cutting in the circumferential direction of the inner circumferential surface of 0, leaving the non-broken bridging portion 110A and the radially inner portion of the plurality of ribs 109 formed so as to extend in the axial direction at intervals in the circumferential direction. To be done. Therefore, the circumferential breaking line 105
The tamper-evidence skirt 108 below the circumferential rupture line 10 includes a plurality of ribs 109 and unbroken bridge portions 110A that are left without being cut.
It is connected to the main part 106 above 5. The remaining portions of the plurality of ribs 109 define the bridging portions 110. FIG.
As can be easily understood from 1, the circumferential breaking line 10
5 is formed between the plurality of ribs 109 so as to form a slit that completely cuts the material. After the circumferential breaking line 105 is formed, a cutting blade extending in the axial direction is made to act on the tamper-evident skirt 108 to form the axial breaking line 115. As can be readily seen in FIG. 11, the axial break line 115 is formed to score the material to a partial cut rather than a complete cut to leave the required thickness.

[0007]

The conventional container lid 100 of the above-mentioned form has the following problems with respect to the axial break line 115 formed on the tamper evidence skirt 108. The axial breaking line 115 has a score as described above, and therefore is not completely cut, and thus tends to be broken. Due to this, when the container lid 100 is detached from the opening of the container 120, axial breaking does not proceed in the axial breaking line 115, and instead, only the circumferential breaking line 105 that is a slit. Is broken, thus the container lid 1
Even if 00 is separated from the opening, the tamper-evidence skirt 108 is connected to the main portion 106 of the skirt wall 104 via the non-breaking bridging portion 110A in the opening of the container 120 in the endless annular shape. Not a few tendencies to remain. Therefore, the tamper-evidence skirt 108 cannot function as a tamper-evidence sufficiently reliably.

In order to solve the above-mentioned problem, when the axial breaking line 115 is a slit in the cutting step, the tamper-evidence skirt 108 is completely cut from its upper end to its lower end. That is, the container lid 100 is formed with the circumferential break line 105 and the axial break line 115 forming a slit. After that, when this is attached to the container 120 as described above, there is a possibility that the axial breaking line 115 is greatly expanded and the bridging portion 110 of the circumferential breaking line 105 is broken. Further, when the container lid 100 is conveyed to the mounting step, it is recognized that the same phenomenon as described above tends to occur due to catching at the axial breaking line 115. As a result, the function as the tamper evidence cannot be retained with sufficient certainty, and the product cannot be accepted as a product.

The axial breaking line 115 is formed so as to extend substantially vertically from the upper end located above the circumferential breaking line 105 to the lower end of the tamper-evidence skirt 108, but instead of this, the vertical breaking line 115 is vertical. Axial rupture composed of a pair of axial rupture lines leaving a bridging portion in the middle of the direction and a third axial rupture line which is circumferentially spaced from and aligned with the bridging portion Container lids with lines are also known. Each of these three axial break lines consists of a slit and the break strength is defined by the bridging portion. However, the bridging portion should not have such strength that the breakage does not progress when it is attached to the container 120 or when it is transported, and that it is reliably cut when the container lid is detached from the container 120. It's extremely difficult, if not impossible.

Therefore, in the conventional container lid 100, it is originally desired to form the axial breaking line 115 as a slit, but in order to avoid the above-mentioned undesired breaking, the axial breaking line 115 should be formed as a score. The reality was that it was unavoidable. Therefore, while forming the axial breaking line 115 as a score as in the conventional case, the breaking line 115 is relatively easy to break and is prevented from breaking or deforming as much as possible during the above-described mounting or transportation.
If the function as the tamper evidence is to be ensured with sufficient certainty, it is necessary to cut the non-cut portion so as to leave the thickness to a desired thickness with sufficient accuracy. However, for that purpose, the machining of the axial breaking line requires extremely strict accuracy, which lowers the production efficiency and increases the manufacturing cost, which is not practical.

The present invention has been made on the basis of the above facts, and its main purpose is to form the axial breaking line as a slit so as to ensure the function as a tamper-evidence sufficiently surely. It is to provide a novel method and apparatus for forming an axial breaking line on a synthetic resin container lid, which is capable of reliably preventing undesired breaking due to it.

[0012]

According to the present invention, a synthetic resin container fitted in an opening of a container having an external thread formed on its outer peripheral surface and a locking jaw located below the external thread. A tamper-evidence skirt that is a lid and includes a top wall and a skirt wall that hangs down from the peripheral edge of the top wall, a female screw is formed on the inner peripheral surface of the main portion of the skirt wall, and the bottom end of the skirt wall is located. On the inner peripheral surface of the container lid, which is formed with locking means projecting inward in the radial direction, is pressed in the axial direction downward and pressed against the opening to rotate in the closing rotation direction to rotate the container lid. A container lid mounting step of engaging the female screw of the container lid with the male screw of the opening so that the locking means is located on the lower surface of the locking jaw, and an axial breaking line is formed on the tamper evidence hem. A container lid including a cutting step formed as a split After Chakukotei has been performed, the cutting step is performed, a method of forming an axial breaking line plastic container closure, characterized in that, is provided.

In this method, the cutting step of forming the axial rupture line as a split on the tamper evidence skirt is performed after the container lid mounting step is performed. Therefore, when the container lid is mounted on the container, or when the container lid is transported to the mounting step, the container lid is not formed with the axial breaking line, and thus the above-mentioned undesired breakage or deformation due to the split is caused. Is reliably prevented. Since the axial breaking line formed after the container lid is attached to the container is a split, when opening the container by rotating the container lid in the opening rotation direction, the bridging part in the circumferential breaking line is part of it. Since it is cut off while leaving, the function as a tamper evidence can be secured with sufficient certainty. Even if the axial breaking line is a split line, it is formed after the container lid is attached to the container, so that no problem occurs in the subsequent transportation of the container. Further, since the split itself does not require any particular precision, the production efficiency is improved and the manufacturing cost is reduced.

According to the present invention, in addition to the above configuration, a container unloading step of rotating and unloading the container by a turret after the container lid mounting step is performed, and a container unloading step after the container unloading step is performed. A method is provided, which includes a scroll carrying step of carrying by a conveyor and a scroll member arranged along the conveyor, and the cutting step is performed in the scroll carrying step. Also in this method, the same operation and effect as described above can be achieved.

According to the present invention, in addition to the above-mentioned constitution, the cutting step is performed by extending the axial breaking line below the outer peripheral surface of the container opening below the tamper-evident skirt. The method further includes a marking step of forming an alignment mark, wherein the marking step causes a coloring agent to adhere to the axial cutting blade by a coloring means, and at the time of forming the axial breaking line, one of the axial cutting blades is formed. Part
A method is provided for acting on the outer peripheral surface of the container opening to form the mark.

According to this method, since the alignment mark is colored and formed along with the axial break line, the effect of preventing tampering is further improved. Moreover, since the axial breaking line and the alignment mark are simultaneously performed by the common cutting blade, the production efficiency is high and the manufacturing cost is low.

According to the present invention, further, a plurality of arcuate notches for receiving and supporting the lower side of the flange of the container having the flange formed in the opening are circumferentially spaced from each other. A transport turret disc that is formed, and that transports and rotatably transports the container by supporting the container in cooperation with guides arranged in an arc shape along the notch and the peripheral edge, A container lid mounting device including a container lid mounting unit which is vertically aligned with each of the cutout portions and is arranged above the cutout portions, and on the transport turret disk corresponding to each of the cutout portions. Each of the container lid mounting units is provided with an axial cutting blade unit disposed therein, and each of the container lid mounting units has an outer peripheral surface formed with a male screw and a locking jaw portion located below the male screw. A synthetic resin container lid to be fitted, the top wall and A skirt wall hanging down from the peripheral edge of the top wall is provided, and a female screw is formed on the inner peripheral surface of the main part of the skirt wall, and the inner peripheral surface of the tamper-evident hem located at the lower end of the skirt wall has a radial inner surface. The container lid formed with locking means projecting in one direction is pressed downward in the axial direction and pressed against the opening of the container supported by the corresponding supporting portion, and is rotated in the closing rotation direction to rotate the container. It is configured to be attached to the opening of the container by engaging the female screw of the container lid with the male screw of the opening so that the locking means of the lid is located on the lower surface of the locking jaw. , Each of the axial cutting blade units is radially inwardly spaced from the outer peripheral surface of the tamper-evident skirt of the container lid mounted on the container supported in the corresponding notch. The axial cutting blade located in the position and the cutting A cutting blade actuating means for reciprocating between the non-acting position and the actuating position which acts on the outer peripheral surface of the tamper-evidence skirt to form the axial breaking line as a split. An apparatus for forming a breaking line in an axial direction on a synthetic resin container lid is provided.

According to this apparatus, after the container lid is mounted by the container lid mounting unit on the container supported by the cutout portion on the transport turret disk, the axial cutting blade unit arranged corresponding to the container lid mounting unit. By moving the axial cutting blade of (1) from the non-acting position to the working position by the cutting blade actuating means, the axial breaking line can be formed as a split on the outer peripheral surface of the tamper-evident skirt. Since the axial cutting blade unit is arranged corresponding to each of the notches on the transport turret disk, the axial cutting in the non-acting position with the container lid mounted on the container supported by the notches There is no relative movement with the blade and the formation of the axial break line is performed accurately and easily.

According to the present invention, further, a plurality of arcuate notches for receiving and supporting the lower side of the flange of the container having the flange formed at the opening are circumferentially spaced at a plurality of circumferential notches. A formed transport turret disc, which transports and rotatably transports the container by supporting the container in cooperation with a stationary guide arranged in an arc shape along the notch and the peripheral edge, A container lid mounting device including a container lid mounting unit which is vertically aligned with each of the notches and arranged above the notched portion; and a container to which the container lid is mounted by the container lid mounting unit. A container unloading device for rotating and unloading,
A scroll carrying device for carrying the container carried out by the container carrying-out device in cooperation with a conveyor and a scroll member arranged along the conveyor, and the container lid mounted on the container in the scroll carrying device At least one axial cutting blade unit arranged so as to be orthogonal to the movement path of each of the container lid mounting units, and each of the container lid mounting units has a male screw and a locking jaw portion located below the male screw. A synthetic resin container lid fitted in the opening of the container, which comprises a top wall and a skirt wall hanging down from the peripheral edge of the top wall, and an internal thread is formed on the inner peripheral surface of the main part of the skirt wall. A container lid is formed on the inner peripheral surface of the tamper-evidence skirt located at the lower end of the skirt wall, which projects inward in the radial direction. You The female screw of the container lid so that the locking means of the container lid is located on the lower surface of the locking jaw by pressing in the opening of the container supported by the notch and rotating in the closing rotation direction. Is configured to be attached to the opening of the container by engaging with the male screw of the opening,
The axial cutting blade unit is a radial outside of the outer peripheral surface of the tamper-evidence skirt portion of the container lid mounted on the container conveyed by the scroll conveying device, and does not interfere with its movement. Between the axial cutting blade positioned at the position, the non-operating position, and the operating position where the axial cutting line is formed as a split by acting on the outer peripheral surface of the tamper-evident hem. There is provided a device for forming an axial breaking line on a synthetic resin container lid, comprising: a reciprocating cutting blade operating means.

According to this apparatus, since the above-mentioned object can be achieved by arranging at least one axial cutting blade unit, the apparatus can be remarkably simplified and the manufacturing cost can be remarkably reduced.

According to the present invention, in addition to each of the above configurations, each of the axial cutting blades has an outer periphery of the container opening below the tamper evidence skirt at the time of forming the axial break line. A surface, and on the downward extension of the axial breaking line, integrally includes a marking cutting blade that forms an alignment mark, and each of the axial cutting blade units includes a coloring agent on the axial cutting blade. Each of the axial cutting blades is arranged for reciprocal movement therethrough in the corresponding coloring means and is located in the non-actuated position. Is provided within the coloring means.

According to this apparatus, the alignment mark can be surely colored and formed together with the axial break line. Since the formation of the axial break line and the alignment mark is simultaneously performed by the common cutting blade, the production efficiency is high, and the apparatus itself is compact and inexpensive.

According to the present invention, in addition to the above-mentioned structure (including the scroll conveying device), the receiving unit is arranged so as to face the axial cutting blade unit with the moving path sandwiched therebetween, and the receiving unit includes: A circular arc-shaped receiving member having an inner peripheral surface that is substantially the same shape as a part of the outer peripheral surface of the container lid, the radial direction of the outer peripheral surface of the container lid mounted on the container being conveyed by the scroll conveying device. A receiving member positioned at a non-acting position that is outward and does not interfere with its movement; a non-acting position of the receiving member, and a working position for abutting the part of the outer peripheral surface of the container lid. An apparatus is provided which comprises a receiving member actuating means for reciprocating movement therebetween.

In this apparatus, the axial cutting blade and the receiving member are simultaneously moved to the working position,
Since the member receiving the force of the axial cutting blade acting on the container lid can receive the force from the opposite side of the container lid, the axial break line can be formed more stably.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Referring to FIG. 1, a container lid mounting device 2 is provided with a container loading device 4 on the upstream side and a container unloading device 6 on the downstream side. The container lid mounting device 2 itself may have a configuration well known to those skilled in the art, and therefore its outline will be described. The container lid mounting device 2 is provided with a transport turret disk 8 mounted on a rotary shaft (not shown) and a stationary guide 10. A plurality of arcuate notches 12 are formed on the peripheral edge of the transport turret disk 8 at intervals in the circumferential direction. As shown in FIG. 5, the notch 12 is configured to receive and support (suspend and support) a part of the lower portion of the flange 125 of the container 120 having an annular flange 125 formed in the opening. . The container 120 shown in FIG.
Has substantially the same configuration as the container 120 shown in FIG. 11, and therefore the same portions are denoted by the same reference numerals. Note that FIG.
The container lid 200 attached to the container 120 shown in FIG.
Since the basic structure is substantially the same as that of the conventional container lid 100 shown in FIGS. 0 and 11, the same parts are designated by the same reference numerals. The stationary guide 10 is the transport turret disk 8
Are arranged in an arc shape along the peripheral edge of the container and are positioned so as to support another portion below the flange 125 of the container 120 received in the notch 12. Therefore, the transport turret disk 8 can support the container 120 in cooperation with the notch 12 and the stationary guide 10 and rotate and transport the container 120 in the clockwise direction in FIG.

Referring to FIG. 2 together with FIG. 1, the container lid mounting apparatus 2 further includes a container lid mounting unit 14 which is partially shown in FIG. A plurality of container lid mounting units 14 are arranged at intervals in the circumferential direction on the periphery of a rotation support body (not shown) mounted above the disk 8 of the rotary shaft of the transport turret disk 8. . Each of the container lid mounting units 14 is vertically aligned with each of the notches 12 and is arranged above the notches 12 so as to be vertically movable and rotatable at a predetermined timing. Each of the container lid mounting units 14 presses the synthetic resin container lid 200 fitted in the opening of the container 120 downward in the axial direction to the opening of the container 120 supported by the corresponding notch 12. Rotate in the closing rotation direction while pressing it so that the locking flap piece 114 of the container lid 200 moves.
Of the container lid 20 so that it is located on the lower surface of the locking jaw portion 124 of
By engaging the female screw 112 of No. 0 with the male screw 122 of the opening, it is configured to be attached to the opening of the container 120.

An axial cutting blade unit 20 is arranged on the transport turret disk 8 in correspondence with each of the notches 12. Each of the axial cutting blade units 20 is
Since they have substantially the same configuration, one of them will be described. With reference to FIGS. 3 and 4, the axial cutting blade unit 20 includes an axial cutting blade 22 and a fluid pressure cylinder 2.
4 and. A piston (not shown) is movably arranged in the cylinder 24, and one end of a piston rod 26 thereof projects from one end of the cylinder 24. An axial cutting blade 22 is detachably attached to one end of the piston rod 26. A return spring (not shown) is interposed in one chamber (the chamber on the left side in FIG. 4) divided by the pistons in the cylinder 24, and the other chamber receives and supplies fluid pressure such as air pressure or hydraulic pressure. It is connected to a fluid pressure source via a control valve (not shown).

When the fluid pressure is discharged from the other chamber of the cylinder 24, the piston is located at the non-acting position on the right side of FIG. At this time, the axial cutting blade 22
Is the tamper-evident skirt 108 of the container lid 200 mounted on the container 120 supported by the corresponding notch 12.
Is positioned in a non-acting position radially outward from the outer peripheral surface (see FIGS. 3 and 4). Further, in the state where the fluid pressure is supplied to the other chamber of the cylinder 24, the piston is moved to the left operating position in FIG. At this time, the axial cutting blade 22 is moved to an operating position where it acts on the outer peripheral surface of the tamper-evident skirt 108 and forms the axial breaking line 202 (see FIG. 9) as a split (two points in FIG. 5). See the chain line). The operation of the cylinder 24 is controlled by the control valve. As is clear from the above description, the cylinder 24 functions as a cutting blade actuating means for reciprocating the axial cutting blade 22 between the non-acting position and the working position. An electromagnetic solenoid may be used as the cutting blade actuating means instead of the cylinder 24.
Further, it may be configured to connect to a fluid pressure source through a control valve so that fluid pressure is supplied to and discharged from one chamber of the cylinder 24.

Referring again to FIG. 1, the container loading device 4, which may have a construction well known to those skilled in the art, includes a loading turret disk 30, a stationary guide 32, and other guides (not shown) mounted on a rotation shaft (not shown). It is equipped. A plurality of arcuate notches 34 are formed in the peripheral edge of the carry-in turret disk 30 at intervals in the circumferential direction. This notch 34
Are configured to receive and support a portion of the bottom of the flange 125 of the container 120. The stationary guide 34 having an arc shape is positioned so as to guide the body of the container 120. Other guides not shown are stationary guides 3.
4 is arranged in an arc shape along the peripheral edge of the carry-in turret disk 30 and inherits the container 120 received in the notch 12 and guided by the stationary guide 34, and the other parts below the flange 125 thereof. Is positioned to support a portion of the. Therefore, the carry-in turret disk 30 can rotate and convey the container 120 counterclockwise in FIG. 1 in cooperation with the notch 34, the stationary guide 32, and other stationary guides. Reference numeral 36 is a conveyor that conveys the container 120. The container loading device 4 is provided with a container lid supply mechanism (not shown) well known to those skilled in the art at the position (X), and the container lid 200 is caught at the opening of the moving container 120. At the position (Y), a container lid temporary tightening mechanism (not shown) well known to those skilled in the art is provided, and the caught container lid 200 is temporarily tightened in the opening of the container 120.

The container unloading device 6 which may have a well-known structure to those skilled in the art is equipped with an unloading turret disc 40 and a stationary guide 42 mounted on a rotary shaft (not shown). A plurality of arcuate notches 44 are formed in the peripheral portion of the carry-out turret disc 40 at intervals in the circumferential direction. The notch 44 is configured to receive the body of the container 120. The stationary guide 42 having an arc shape is used for the container 12
It is positioned to guide the 0 body. Therefore, the carry-out turret disc 40 can rotate and convey the container 120 counterclockwise in FIG. 1 in cooperation with the notch portion 44 and the stationary guide 42.

The container 120 conveyed from the left side of FIG. 1 by the conveyor 36 is carried into the container lid mounting device 2 by the container carrying-in device 4. In the process, the container lid 200 is caught and temporarily fastened to the container opening. The container lid 200 is mounted on the container 120 loaded into the container lid mounting device 2, and after the axial break line 202 (see FIG. 9) is formed on the container lid 200, the container 120 is inherited by the container unloading device 6.
That is, at the position (A) in FIG. 1, as shown in FIG. 2 (A), the container lid mounting unit 14 descends, and its member 14a presses the top of the container lid 200 that is temporarily fastened to press the top of the container 120. Hold in the opening. Then, the container lid engaging tool 14b descends as the transport turret disk 8 rotates,
Engage with container lid 200. Then, at the position (B) in FIG. 1, as shown in FIG. 2 (B), the container lid 200 is firmly attached (tightened) to the opening of the container 120 by the rotation of the container lid engaging member 14b in the closing rotation direction. ).

After the rotation of the container lid engaging member 14b is stopped,
The axial cutting blade 22 of the axial cutting blade unit 20 is reciprocated to form an axial breaking line 202 as a split on the outer peripheral surface of the tamper-evident skirt 108 of the container lid 200. As shown in FIG. 9, a circumferential break line 204 is formed in advance on the tamper-evident skirt 108 of the container lid 200. The circumferential break line 204 is formed continuously over the entire circumference. The axial break line 202, which is formed as a split, is formed to extend substantially vertically from the upper end located above the circumferential break line 204 to the lower end of the tamper-evident skirt 108.

After the axial cutting blade 22 is returned to the non-acting position, at the position (C) in FIG. 1, as shown in FIG. 2 (C), the container lid mounting unit 14 is lifted to move the container lid 20.
Moved upward from 0. As is clear from the above description, in the container lid mounting device 2, after the container lid mounting process is performed, the cutting process of the axial break line 202 is performed. The container 120 to which the container lid 200 is attached is unloaded to the conveyor 36 via the container unloading device 6, and is further transported by the conveyor 36 in the downstream direction.

In the above-described embodiment, it is in the container lid mounting device 2 that the step of cutting the axial breaking line 202 is performed after the container lid mounting step is performed. In the present invention, this can also be performed not by the container lid mounting device 2 but by the scroll carrying device 50 arranged on the downstream side of the container unloading device 6. This embodiment will be described below.

Referring to FIG. 1, on the downstream side of the container unloading device 6, the container 120 unloaded by the container unloading device 6 is provided.
A conveyor 36 and a scroll conveyor device 50 that cooperates with a scroll member 52 arranged along the conveyor 36 to convey the scroll are provided. The scroll member 52 in the scroll carrying device 50, which is entirely indicated by a chain double-dashed line, includes
20 has a recessed portion 54 formed in a spiral shape in the axial direction so as to receive the body portion of 20 and convey it in the moving direction of the conveyor 36,
It is rotationally driven by a driving means (not shown). In addition, on the opposite side of the scroll member 52 across the conveyor 36,
A stationary guide (not shown) that guides the body of the container 120 along the conveyor 36 is arranged.

56 is an axial cutting blade unit,
The scroll carrier 50 is arranged so as to be orthogonal to the movement path of the container lid 200 mounted on the container 120. The axial cutting blade unit 56 has substantially the same configuration as the axial cutting blade unit 20 described above. That is, the axial cutting blade unit 56 is radially outward of the outer peripheral surface of the tamper-evident skirt 108 of the container lid 200 mounted on the container 120 conveyed by the scroll member 52 and does not interfere with its movement. An axial cutting blade (not shown) positioned in the working position,
This cutting blade is made to act on the non-acting position and the outer peripheral surface of the tamper-evidence skirt portion 108 so that the axial breaking line 202
And a fluid pressure cylinder (not shown) which is a cutting blade actuating means for reciprocating between a working position formed as a split.

In the scroll carrying device 50,
The receiving unit 57 is arranged so as to face the axial cutting blade unit 56 with the movement path sandwiched therebetween. The receiving unit 57 is an arcuate receiving member having an inner peripheral surface that is substantially the same shape as a part of the outer peripheral surface of the container lid 200, and the outer peripheral surface of the container lid 200 mounted on the container 120 conveyed by the scroll member 52. A receiving member 58 positioned in a non-acting position that is radially outward of the surface and does not interfere with its movement;
The receiving member 58 is provided with a fluid pressure cylinder 59 that is a receiving member operating means that reciprocates between a non-acting position and an actuating position where the receiving member 58 is brought into contact with the part of the outer peripheral surface of the container lid 200. The fluid pressure cylinder 59 has substantially the same configuration as the fluid pressure cylinder 24 in the axial cutting blade unit 20.

The container lid 200 of the container 120 conveyed by the conveyer 36 and the scroll member 52 has an axial cutting blade unit 56 and a receiving unit 57 which are substantially opposite to each other.
And the receiving member 58 of the receiving unit 57, the axial cutting blade of the axial cutting blade unit 56 is synchronously moved from the non-acting position to the working position. At that moment, an axial breaking line 202 is formed on the outer peripheral surface of the tamper-evident skirt 108 of the container lid 200.
Are formed as splits. Since the receiving member 58 is positioned so as to face the cutting direction of the axial cutting blade, the cutting is stably and reliably performed. The axial cutting blade and the receiving member 58 are immediately returned to the non-acting position after the axial breaking line 202 is formed. Container lid 200
Is moving, the operation is performed at high speed. As is clear from the above description, in the present embodiment, the axial break line cutting step is performed in the scroll conveying step after the container lid mounting step and the container unloading step.

6 and 7 show another embodiment of the axial cutting blade unit 20 shown in FIG. 6 is a diagram corresponding to FIG. 3, and FIG. 7 is a diagram corresponding to FIG. 4, and the same portions are denoted by the same reference numerals. The axial cutting blade unit 60 is arranged on the transport turret disk 8 instead of each of the axial cutting blade units 20 shown in FIG. 1, and each has substantially the same configuration, so one of them will be described. The axial cutting blade unit 60 includes a coloring means 64 that attaches a coloring agent to the axial cutting blade 62. The axial cutting blade 62 is
At the time of forming the axial break line 202, the alignment mark 130 (see FIG. 9) is formed on the outer peripheral surface of the opening of the container 120 below the tamper-evident skirt 108 and on the downward extension of the axial break line 108. ) Is integrally included. The marking cutting blade 66 is integrally formed so as to project in an L shape from below the tip of the axial cutting blade 62 to the front.

In this embodiment, the coloring means 64 is constructed by filling a cylindrical container with felt containing a coloring agent. The axial cutting blade 62 is arranged so as to be able to reciprocate through the cylindrical container and the felt (a slit is formed in the cylindrical container and the felt), and when it is positioned in the above-mentioned non-acting position, its tip end. Are defined to be located within the felt. With this arrangement, the coloring agent is always attached to the tip of the axial cutting blade 62 including the marking cutting blade 66. A screw is openably and closably attached to the upper end opening of the cylindrical container, and a colorant is appropriately filled.

At the position (B) in FIG. 1, as shown in FIG. 2 (B), the container lid engaging member 1 of the container lid mounting unit 14 is shown.
4b, the container lid 200 is attached to the opening of the container 120, and after the rotation of the container lid engaging tool 14b is stopped, the axial cutting blade 62 of the axial cutting blade unit 60 is reciprocally moved to cause the container lid 200 to move. Tamper Evidence Hem 10
The axial break line 202 is formed as a split on the outer peripheral surface of the container 8, and the alignment mark 130 is formed by the marking cutting blade 66 at the opening of the container lid 120 (see FIG. 9). FIG. 8 shows the axial cutting blade 62 including the marking cutting blade 66 in the working position. The axial break line 202 and the alignment mark 130 are colored in a desired color with a colorant. The axial cutting blade unit 60 can also be applied as another embodiment of the axial cutting blade unit 56 in the scroll conveying device 50.

As is clear from the above description, in this embodiment, the cutting process is performed after the container lid mounting process, and the cutting process is performed below the tamper-evidence skirt 108. A marking step of forming the alignment mark 130 on the outer peripheral surface of the opening and on the downward extension of the axial breaking line 202 is included. In this marking step, a coloring agent is attached to the axial cutting blade 62 by the coloring means 64, and
When the axial break line 202 is formed, a part 66 of the axial cutting blade acts on the outer peripheral surface of the opening of the container 120 to form the mark 130.

The container lid 200 in which the axial breaking line 202 is formed by the method and apparatus according to the present invention is made of synthetic resin. On the other hand, the container 120 must be made of synthetic resin if the alignment mark 130 is formed on the outer peripheral surface of the opening (including the outer peripheral surface of the flange 125), but if the alignment mark 130 is not formed on the container 120. It holds even if it is made of glass or other hard material.

Although the method and apparatus according to the present invention have been described above with reference to the embodiments thereof, the present invention is not limited to the above embodiments, and various variations or modifications can be made without departing from the scope of the present invention. Is possible.

[0045]

According to the present invention, since the axial breaking line is formed as a slit on the container lid after the container lid is mounted on the container, the breaking surely progresses from the axial breaking line when the container is opened. , The function as a tamper evidence is secured with sufficient certainty. Furthermore, since the axial break line is not formed on the container lid before and during mounting on the container, it is possible to reliably prevent undesired breakage due to the slit.

[Brief description of drawings]

FIG. 1 is a schematic plan view of an embodiment of an apparatus for forming a breaking line in an axial direction on a synthetic resin container lid configured according to the present invention and its related apparatus.

FIG. 2 is a side view partially showing three operation modes and an axial cutting blade unit of the container lid mounting device shown in FIG.

FIG. 3 is a plan view showing an embodiment of the axial cutting blade unit shown in FIG.

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

FIG. 5 is an enlarged partial cross-sectional view showing a state in which the axial cutting blade of the axial cutting blade unit in FIG. 4 acts on the tamper-evident skirt of the container lid attached to the container opening.

6 is a plan view showing another embodiment of the axial cutting blade unit shown in FIG. 1. FIG.

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a partially enlarged cross-sectional view showing a state in which the axial cutting blade of the axial cutting blade unit in FIG. 7 acts on the tamper-evidence skirt of the container lid attached to the container opening and the container opening.

FIG. 9 is a side view showing a container lid and a container opening in which an axial breaking line and an alignment mark are formed by implementing the present invention.

FIG. 10 is a side view showing a conventional container lid with a part thereof broken away.

FIG. 11 is a cross-sectional view partially enlarged showing a state in which the container lid shown in FIG. 10 is attached to the container.

[Explanation of symbols]

 2 Container Lid Mounting Device 4 Container Loading Device 6 Container Unloading Device 8 Transport Turret Disk 10 Stationary Guide 12 Notch 14 Container Lid Mounting Unit 20, 56 and 60 Axial Cutting Blade Unit 22 Axial Cutting Blade 24 Cutting Blade Actuating Means 36 Conveyor 50 Scroll Conveying Device 57 Receiving Unit 58 Receiving Member 62 Axial Cutting Blade 64 Coloring Means 66 Marking Cutting Blades 100 and 200 Container Lid 108 Tamper Evidence Bottom 114 Locking Means 115 Axial Breaking Line 120 Container 124 Locking Jaw Part 125 Flange 130 Alignment mark 202 Axial direction breaking line (slit) 204 Circumferential direction breaking line

Claims (7)

[Claims] 1. A synthetic resin container lid fitted in an opening of a container having an external thread formed on its outer peripheral surface and a locking jaw located below the external thread, the upper surface wall and the ceiling A skirt wall that hangs down from the peripheral edge of the face wall is formed with an internal thread on the inner peripheral surface of the main portion of the skirt wall, and the inner peripheral surface of the tamper-evidence skirt located at the lower end of the skirt wall is radially inward. The container lid on which the locking means protruding from the container lid is formed is pressed downward in the axial direction and pressed against the opening to rotate in the closing rotation direction so that the locking means of the container lid moves to the locking jaw of the locking jaw. A container lid mounting step of engaging the female thread of the container lid with the male thread of the opening so as to be located on the lower surface, and a cutting step of forming an axial breaking line as a split in the tamper-evidence hem portion, After the container lid mounting process is performed, the Process is performed, a method of forming an axial breaking line plastic container closure, characterized in that. 2. A container unloading process of rotating and carrying out the container by a turret after the container lid mounting process is performed,
A scroll carrying step for carrying the container by a conveyor and a scroll member arranged along the conveyor after the container carrying-out step is carried out, and the cutting step is carried out in the scroll carrying step. 2. A method of forming a breaking line in the axial direction on the synthetic resin container lid according to 1. 3. The marking for forming an alignment mark on the outer peripheral surface of the container opening below the tamper-evidence skirt and on the downward extension of the axial breaking line in the cutting step. In the marking step, a coloring agent is attached to the axial cutting blade by a coloring means, and at the time of forming the axial breaking line, a part of the axial cutting blade is attached to the outer circumference of the container opening. The method for forming an axial break line on a synthetic resin container lid according to claim 1, wherein the mark is formed by acting on a surface. 4. A transport turret circle having a plurality of arcuate notches for receiving and supporting the lower side of the flange of a container having a flange formed at an opening at circumferentially spaced intervals. A plate, a transport turret disk for supporting and rotating and transporting the container in cooperation with a stationary guide arranged in an arc shape along the cutout and the peripheral edge, and each of the cutouts A container lid mounting device that includes a container lid mounting unit that is vertically aligned with respect to the container lid mounting unit, and an axial direction that is disposed on the transport turret disk corresponding to each of the notches. Each of the container lid mounting units has a cutting blade unit, and each of the container lid mounting units has a male screw formed on its outer peripheral surface and a locking jaw located below the male screw, and the synthetic resin fitted into the opening of the container. A container lid,
A top wall and a skirt wall hanging down from the peripheral edge of the top wall, and a female screw is formed on the inner peripheral surface of the main part of the skirt wall,
A tamper-evidence skirt located at the lower end of the skirt wall is provided with locking means projecting radially inward on the inner peripheral surface of the tamper evidence. The female screw of the container lid is pushed so that the locking means of the container lid is located on the lower surface of the locking jaw by pressing in the opening direction of the container supported by the notch and rotating in the closing rotation direction. The axial cutting blade unit is configured to be attached to the opening of the container by engaging the male screw of the opening, and each of the axial cutting blade units is attached to the container supported in the corresponding notch. Also, an axial cutting blade positioned at a non-acting position radially outward of the outer peripheral surface of the tamper-evident skirt portion of the container lid, the cutting blade, the non-acting position, and the tamper-evident hem. To act on the outer peripheral surface of the A device for forming an axial break line on a synthetic resin container lid, comprising: a cutting blade actuating means for reciprocating between an operating position formed as a split. 5. A transport turret circle in which a plurality of arcuate notches for receiving and supporting the lower side of the flange of a container having a flange formed at its opening are formed in the peripheral portion at circumferential intervals. A plate, a transport turret disk for supporting and rotating and transporting the container in cooperation with a stationary guide arranged in an arc shape along the cutout and the peripheral edge, and each of the cutouts And a container lid mounting device including a container lid mounting unit that is vertically aligned with respect to the container lid, and a container unloading device that rotationally carries out the container with the container lid mounted by the container lid mounting unit. A scroll carrying device for carrying the container carried out by the container carrying-out device in cooperation with a conveyor and a scroll member arranged along the conveyor; and a scroll carrying device mounted on the container in the scroll carrying device. Container lid At least one axial cutting blade unit arranged so as to be orthogonal to the movement path, and each of the container lid mounting units is formed with a male screw on an outer peripheral surface and a locking jaw portion located below the male screw. A synthetic resin container lid fitted into the opening of the container,
A top wall and a skirt wall hanging down from the peripheral edge of the top wall, and a female screw is formed on the inner peripheral surface of the main part of the skirt wall,
A tamper-evidence skirt located at the lower end of the skirt wall is provided with locking means projecting radially inward on the inner peripheral surface of the tamper evidence. The female screw of the container lid is pushed so that the locking means of the container lid is located on the lower surface of the locking jaw by pressing in the opening direction of the container supported by the notch and rotating in the closing rotation direction. The axial cutting blade unit is configured to be attached to the opening of the container by engaging with the male screw of the opening, and the axial cutting blade unit is attached to the container to be conveyed by the scroll conveying device. Of the tamper-evidence skirt, the axial cutting blade is positioned radially outside the outer peripheral surface of the skirt and does not interfere with its movement, the cutting blade, the non-acting position, and the tamper evidence. Act on the outer peripheral surface of the hem An apparatus for forming an axial breaking line on a synthetic resin container lid, comprising: a cutting blade actuating means for reciprocating between an operating position where the axial breaking line is formed as a split. 6. Each of the axial cutting blade units is provided with coloring means for adhering a coloring agent to the axial cutting blades, and each of the axial cutting blades is provided with a coloring means when forming the axial breaking line. On the outer peripheral surface of the container opening below the tamper-evidence skirt, on the downward extension of the axial breaking line, a marking cutting blade forming an alignment mark is integrally included, and corresponding 6. The composition of claim 4 or claim 5, wherein each tip is positioned within the coloring means when arranged to reciprocate through the coloring means and when positioned in the non-acting position. Equipment for forming axial break lines on resin container lids. 7. A receiving unit is arranged so as to face the axial cutting blade unit with the movement path interposed therebetween, and the receiving unit has an inner peripheral surface that is substantially the same shape as a part of the outer peripheral surface of the container lid. An arcuate receiving member positioned at a non-acting position that is radially outward of the outer peripheral surface of the container lid mounted on the container conveyed by the scroll conveying device and does not interfere with its movement. 7. A member and a receiving member actuating means for reciprocating the receiving member between the non-acting position and the acting position where the receiving member abuts against the part of the outer peripheral surface of the container lid. A device for forming an axial breaking line on the synthetic resin container lid described.