JP2005138842A - Method and apparatus for removing pilferproof cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for removing a pilferproof cap that comprises a cap for preventing the opening/closing of a sealed container and a cap seal. <P>SOLUTION: The cap is made of a synthetic resin, and seals the top face of the mouth of the container. The seal is made of a heat-shrinkable cylindrical film, which is shrank by heat to cover the cap and the mouth, neck, and shoulder of the container. The method for removing the pilferproof cap includes a step 1 of skewering the cap top face with a piercing tool, a step 2 of axially inclining the piercing tool in the container, and a step 3 of lifting the piercing tool that is kept inclined. The cap and the cap seal are removed from the container simultaneously according to the method. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  In beverage containers such as milk candy, in order to prevent the cap from being opened or closed due to mischief or the like, a pilfer proof cap is often used in which a cap seal made of a heat-shrinkable film is applied over the sealing cap. Furthermore, recently, a large number of milk bowls delivered for school lunches are collected in cases without being opened. In order for such a milk bowl to be recycled, it is necessary to discard the remaining milk in the bowl and clean the bowl, but the pilfer proof cap with a cap seal to prevent opening and closing must be removed manually. Doing so is very expensive and costly.

Conventionally, a cap of a milk jar has been provided with a film cover that also serves as a decoration from the top of which a paper lid is fitted inside the shed. When removing such a cap, as in the invention described in Patent Document 1, the tip is pierced in a state where a pair of tapers formed in a tapered shape are closed, and then is opened and raised slightly. This makes it possible to remove the paper cap and cover from the bag.
The applicant also includes a pressing member, an engaging claw, a swinging means for swinging the engaging claw to release the lid, and a holding means for holding the pressing member and the engaging claw in Patent Document 2, An invention has been disclosed in which the lid is removed from the container by engaging the engaging claw with the other end while pressing the one end.
JP 2000-203690 A JP 2003-237923 A

However, as described above, in the pilfer-proof cap, a heat-shrinkable tubular film is used as a cover and heat shrink is performed to provide a cap seal. If the adhesive strength with the cap seal is greater than the strength of the film material of the cap seal and the film is torn before the entire cap seal is removed and some of the film is left in close contact with the bag, or the entire cap seal is There are many cases where only the cap remains and is removed.
In addition, when the claw is engaged with the other end, the engaged claw often comes off before it is removed against the adhesive force of the label. At present, the removal of such a pilfer-proof cap is in a situation where it must be done manually.

  Recovered milk candy with a pilfer-proof cap is not something that would normally occur if normal consumption behavior was taken, and it would be a major cost to solve by investing capital in earnest. It was an object of the present invention to develop a method and apparatus that can be automatically processed at a low cost by removing the cap and the cap seal at the same time with a simple configuration.

  The present invention relates to a method for removing a pilfer-proof cap comprising a cap for preventing opening and closing of a sealed container and a cap seal, wherein the cap is a synthetic resin sealing cap that seals the container mouth from the upper surface. Consists of a heat shrinkable heat-shrinkable tubular film that covers the neck and shoulder from the cap and the mouth of the container, and stabs the stab from the top of the cap in a skewered manner. Step 2 which inclines with respect to an axial direction, and Step 3 which raises the inclined stab implement in that state are characterized by removing a cap and a cap seal simultaneously.

  Further, according to the present invention, the cap seal is made by heat shrinking a heat-shrinkable cylindrical film of polystyrene resin, and the tearability in the vertical direction (longitudinal direction of the container) is greater than that in the horizontal direction (easy to break). It is characterized by being torn first in the longitudinal direction at the time of removal.

Furthermore, the shrinkable label can also be applied when two perforations per set are arranged in the axial direction of a plurality of sets of containers as required. In this case, the film material of the cap seal is other than polystyrene. Even in the case of the above resin, the perforation in the longitudinal direction (the longitudinal direction of the container) of the cylindrical label is larger than that in the lateral direction by providing perforations. It is torn.

  In the apparatus of the present invention, the apparatus includes a table on which a case for arranging and storing a plurality of containers in a partition plate and a removing tool having a stab tool corresponding to the plurality of containers, and the cap has a container mouth portion from above. Sealing cap made of synthetic resin that seals, and the cap seal consists of a cap and a tubular heat-shrinkable film that covers and hangs from the container mouth to the neck, and the puncture tool descends from the top of the cap It is characterized in that it is stabbed in a skewered shape, and the stab is tilted with respect to the axial direction of the container while being stabbed and raised.

  The removal tool includes a stab tool whose tip is tapered like an arrowhead, a drive unit that allows the stool to move up and down in the upper part of the container, and a swinging tool that tilts the stool to the center line of the container. And a moving part.

Furthermore, the pilfer proof cap removing device of the present invention is a cap removing device comprising a case conveying device, a cap seal removing station, a cap seal collecting station, and a case discharging device, and the case is attached to the removing station. It is equipped with a table to be placed and a removal tool having a stab, and the cap is a synthetic resin sealing cap that seals the container mouth from the top, and the cap seal is hung on the neck and shoulder from the cap and container mouth. It consists of a heat-shrinkable cylindrical film that is heat-shrinkable, and the stabbed tool descends and sticks in a skewered shape from the top of the cap. A configuration is provided.

In the present invention, the cylindrical film of the cap seal is provided with a plurality of perforations in the axial direction, or by using polystyrene resin as the film material, the tearing property in the vertical direction (axial direction) of the cylindrical film is large. Since the breaking line enters in the vertical direction, even if the cap seal is in close contact with the ridge, it can be easily removed. Therefore, it is possible to easily remove the cap and the cap seal at the same time by using the stool having the simplest configuration as the detaching device and swinging it.

The present invention will be described in detail with reference to the drawings. As shown in (1) of FIG. 1, the container 1 is a milk jar, and the cap 2 is a general synthetic resin sealing cap, and is crowned so as to be in close contact with the outer peripheral edge of the lip from above the lip. doing. The cap seal 3 is made of a heat-shrinkable tubular film and is heated while being attached to the neck portion 5 and the shoulder portion 6 from the opening 4 sealed with the cap, and the tubular film is thermally contracted to shrink. Yes.
The removal tool 10 includes a stab tool 11, a swing mechanism (not shown) that allows the stake tool 11 to swing around the holding fulcrum 12, and a drive mechanism that moves the entire removal tool 10 up and down.

The steps of the removal method of the present invention will be sequentially described based on (1) to (3) of FIG.
As shown in (1) and (2) of FIG. 1, the piercing tool 11 of the removing tool 10 descends from the upper side of the ridge 1 to which the cap 2 and the cap seal 3 are applied. Pierce the top.
In step 2, as shown in FIG. 1 (3), the piercing tool 11 is swung and tilted with respect to the center of the heel to remove the cap 2 from the throat portion, and the cap seal 3 is made of a perforation or the like. Break along the vertical tear and remove it.
By incorporating Step 1 and Step 2 into the apparatus as appropriate, it is possible to remove the above-described pilfer-proof cap with a simple structure without cost even for a large number of ridges.

  The shape of the bowl 1 is not particularly limited, and can be applied as long as it is about a commercially available milk bowl. The contents are not limited to milk and can be applied to various other things such as juice. . For the cap seal, it is possible to create a cylindrical film with a shape (length / width, diameter, film thickness, etc.) that is advantageous for processing according to the shape of the collar, and it can be selected as appropriate and attached to the collar. The position can be appropriately selected depending on how much the top surface is covered and how long the skirt is made.

The cylindrical film of the cap seal is preferably formed from a heat shrinkable film material preferably made of polystyrene resin. When the material is not a polystyrene-based resin, it can be applied by providing a plurality of perforations as necessary to make the longitudinal tearability of the cylindrical film larger than that in the lateral direction. Furthermore, even if the material is a polystyrene-based resin, providing a perforation is no problem and can be removed more efficiently and reliably.
FIG. 3 shows a cylindrical film provided with perforations. FIG. 3A is an example in which a pair of perforations 9a is provided at one location on the cylindrical film 3a. 2) shows a cylindrical film 3b provided with two sets of perforations 9a, 9b, and FIG. 3 (3) shows a cylindrical film 3c provided with four sets of perforations 9a, 9b, 9c, 9d. The perforation is not limited to these examples and may be provided as appropriate.

FIG. 1 and FIG. 2 are explanatory diagrams of the main part of the method adopting the removal method using a stab, and FIG. 1 (1) to FIG. 2 (6) are described in the order of steps.
As shown in FIG. 1 (1), the step 1 consists of the case 1 with the pilfer proof caps 8 arranged and stored in a plurality of rows and a plurality of rows by a partition plate 7 (not shown). It is in a state where the removal tool 10 is supplied to the station A waiting by the illustrated conveying means. At this time, it is sufficient that the partition plate 7 is fitted in the case, and it is not necessary to prepare a special one. However, in a case without the partition plate, a partition plate can be inserted instead. desirable. The partition plate serves to suppress the inclination of the heel when the stab tool 11 swings.
FIG. 1 (2) shows a state in which the removal tool 10 has been lowered to the top surface of the basket 1 in the station A, and the stab tool 11 has pierced the cap 2 like a skewer. At this time, the piercing tool 11 is illustrated as a stopper-like step, but is not particularly meaningful and may or may not be present. What is necessary is just to set the up-and-down moving stroke of the stab implement 11 by control of an up-and-down moving mechanism.

  Step 2 shows a stage in which the piercing tool 11 swings in the direction indicated by the arrow A and simultaneously removes the cap 2 and the cap seal 3 from the vicinity of the mouth portion as shown in FIG. In order to remove, it is thought that the raising function of the removal tool 10 which is the next step 3 is also acting in cooperation. At this time, the longitudinally easy torn portion (or the perforated portion) of the cylindrical film is torn and the pilfer proof cap 8 is removed.

In step 3, the removal tool 10 is lifted in the direction indicated by the arrow B in FIG. 1 (3), lifted with the cap and cap seal pierced on the puncture tool 11, and as shown in FIG. 2 (4), 11 returns to the normal vertical state from the inclined state.
Up to step 3, the main configuration of the present invention, the detaching station A shown in FIGS. 1 and 2, has been described. The main part of the embodiment of the actual automatic machine will be described next.

Step 4 is an operation relating to the station B that collects the removed cap and cap seal, and the removal tool 10 moves from the removal station A shown in FIG. 2 (4) to the collection station B and FIG. 2 (5).
At the collection station B, the extraction bars 13a and 13b are on standby, and the removal tool 10 is arranged and lowered, and the cap and the cap seal are removed from the stab 11 and dropped into a collection box (not shown). .

Although not shown as an apparatus of the embodiment, a transfer device, a removal station, a removal tool holding / moving device, a cap and cap seal collection station, a discharge device, a collection box, etc. are arranged as appropriate according to the case. An assembled device is desirable.
In the present invention, such an apparatus-like configuration other than the removal station is a technique that has been conventionally adopted in many apparatuses as a known technique, and thus there is no need to particularly limit the means / configuration.

  In the present invention, it is a problem to remove the resin-made hermetic cap and the heat-shrinkable cap seal at once without man-hours. When removing at a time, it is desirable that the cap and the cap seal are integrated without being disassembled apart when the perforation is broken. For this reason, it is preferable that the top surface folded portion of the cap seal that is in contact with the cap is sufficiently adhered, and the adhesive is highly adhesive to the inner surface of the cylindrical film forming the cap seal and has a large adhesive effect between the resins. Providing the agent layer in advance by means such as coating or laminating is also preferable in order to exhibit the effects of the present invention more reliably.

  The present invention provides an effective removal method and apparatus when removing a pilfer proof cap, such as when milk candy is recovered without consuming the contents.

It is side explanatory drawing of the removal station A explaining this invention method. It is an explanatory side view of collection station B following detachment station A. It is explanatory drawing which shows the structure of the cylindrical label applicable to this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Milk candy 2 Cap 3 Cap seal 4 Mouth part 5 Neck part 6 Shoulder part 7 Middle partition board 8 Pilfer proof cap
10 Detachment tool 11 Pricking tool 13 Extraction bar

Claims (6)

A method for removing a pilfer proof cap comprising a cap for preventing opening and closing of a sealed container and a cap seal, wherein the cap is a sealed cap made of a synthetic resin that seals the container mouth from the upper surface, and the cap seal is a cap and a container. It consists of a heat-shrinkable tubular film that is hung from the mouth to the neck and shoulders, and is heat-shrinked. A method for removing a pilfer-proof cap, comprising: step 2 of tilting and step 3 of raising the tilted stab implement in that state, wherein the cap and the cap seal are removed simultaneously. The cap seal is made of a heat-shrinkable cylindrical film made of polystyrene resin as a raw material for the film, and its tearability in the longitudinal direction (longitudinal direction of the container) is larger than that in the lateral direction. The method for removing a pilfer-proof cap according to claim 1, wherein the longitudinal direction is torn first.   The heat-shrinkable tubular film of the cap seal has a plurality of perforations provided in the longitudinal direction of the tubular film, the longitudinal tearability of the tubular film is greater than that in the lateral direction, and is at least longitudinally when removed. The method for removing a pilfer-proof cap according to claim 1 or 2, wherein the direction is torn first. The cap is provided with a table for placing a case for arranging and storing a plurality of containers in the partition plate, and a removal tool having a stab that corresponds to the plurality of containers, and the cap is made of a synthetic resin that seals the container mouth from the top surface. It is a cap, and the cap seal consists of a heat shrinkable heat-shrinkable tubular film that covers the cap and the mouth of the container from the neck and shoulders. The piercing tool of the removal tool is lowered and skewered from the top of the cap. A pilfer proof cap removing device characterized by comprising a structure that stabs into a shape and tilts and raises the stab tool with respect to the axial direction of the container.   The removal tool includes a stabbed tool whose tip is tapered like an arrowhead, a drive unit that moves the stabbed tool up and down on the top of the container, and a rocker that tilts the skewered stool with respect to the center line of the container. The pilfer-proof cap removing device according to claim 4, further comprising a moving part.   A cap removing device comprising a case transporting device, a cap seal removing station, a cap seal collecting station, and a case discharging device, wherein the removing station has a table on which the case is placed and a remover having a stab. The cap is a synthetic resin sealing cap that seals the container mouth from the top, and the cap seal is heat-shrinked from the cap and the heat-shrinkable cylindrical film that covers the neck and shoulders from the container mouth. A pilfer proof cap comprising a structure in which the stab is lowered and stabbed like a skewer from the top of the cap, and the stab is tilted with respect to the axial direction of the container while being stabbed and rises. Removal device.

Images