JP2005046972A - Device for feeding cylindrical film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylindrical film feeding device capable of smoothly and securely feeding a long film from which the cylindrical film is separated. <P>SOLUTION: This device is provided with a feeding roller 21 pinching the long film LF fittedly inserted into a mandrel 10 between the clearance thereof from the mandrel 10 and continuously sending out the long film LF, a breaking roller 22 pinching the long film LF in the clearance thereof from the mandrel 10 and operating together with the feeding roller 21 to separate cap seals S from the long film LF at separation perforations M in order, and a sending out roller 23 pinching the separated cap seal S in the clearance thereof from the mandrel 10 and sending out the same from the mandrel 10. In the device for feeding the cylindrical film, the mandrel 10 into which the long film LF is inserted is supported by a pair of right and left support rollers 24 disposed on the upstream side of the feeding rollers 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a cylindrical film sending apparatus that feeds while forming individual tubular films by sequentially cutting long films in which the tubular films are continuously connected.

  For example, when a cylindrical cap seal is attached to the mouth of a container, a long film in a state of being folded into a sheet shape in which the cylindrical cap seal is continuously connected is opened to a predetermined length while being opened in a predetermined state. After the individual cap seals are formed by sequentially cutting the individual cap seals, the individual cap seals that have been opened are sequentially sent to a predetermined seal insertion position, whereby the mouth of the container that is sequentially conveyed to the seal insertion position. Generally, a method of inserting a cap seal into the part is employed.

  By the way, as a cap seal which seals the mouth part of a container, as shown in FIG. 5, when the knob part n is protruded from the upper end and the container is opened, the knob part n is picked and broken to open the mouth of the container. In order to be able to remove easily from the part, there are two formed the rear perforation vertical perforation Mv connected to the knob part n, and thus the cap seal S from which the knob part n protrudes is removed from the long film. In the case of separation, since a rotary cutter cannot be used, such a cylindrical cap seal S is continuously connected through a separation perforation M at a portion other than the knob n, as shown in FIG. A long film LF is manufactured, and is sent out while the cap seal S is separated from the long film LF by a cap seal delivery device 50 as shown in FIG.

  As shown in the figure, the cap seal delivery device 50 has a mandrel 51 that opens in a predetermined state by inserting a long film LF fed out from the raw roll R, and is inserted into the mandrel 51. A long film LF is sandwiched between the mandrel 51 on the downstream side of the feeding roller 52, and the feeding roller 52 that sandwiches the long film LF between the mandrel 51 and continuously feeds at a predetermined speed. A rupture delivery roller 53 is provided for separating the cap seal S from the long film LF and feeding it from the mandrel 51 by sequentially breaking the long film LF at the separation perforation M due to the rotational speed difference from the feed roller 52. The cap seal S sent out from the mandrel 51 is inserted into the seal at a predetermined conveying pitch by the belt conveyor 60. It adapted to be successively engaged inserted sequentially mouth of the conveyed container P on.

  The feeding roller 52 and the breaking and feeding roller 53 are the first feeding roller 52 from the leading edge of the long film LF when the breaking and feeding roller 53 sandwiches the leading edge of the long film LF with the mandrel 51. The separation perforation M and the second separation perforation M are installed so as to be sandwiched between the mandrel 51, and the breaking delivery roller 53 has a higher rotational speed than the feeding roller 52 at a constant speed. It is designed to rotate.

  An upper roller 51a and a lower roller 51b for sandwiching the inserted long film LF between the feeding roller 52 and the breakout feeding roller 53 are rotatably supported by the mandrel 51. By contacting the lower side of the upper roller 51a of the mandrel 51, the mandrel 51 is supported via the upper roller 51a.

JP 2002-331497 A

  Incidentally, in the cap seal delivery device 50 as described above, as shown in FIG. 7, the feed roller 52 that supports the mandrel 51 by contacting the lower side of the upper roller 51 a is located inside the mandrel 51. The portion X sandwiched between the feeding roller 52 and the upper roller 51a in the long film LF fitted and inserted into the mandrel 51 is partially narrowed radially inward of the mandrel 51 because it is in the state of entering. become.

  Therefore, when the cap seal S is separated between the feeding roller 52 and the breaking and feeding roller 53, the leading end Y of the long film LF positioned between the feeding roller 52 and the breaking and feeding roller 53 becomes the mandrel 51. Then, the leading end portion of the fed long film LF cannot be smoothly sandwiched between the break-off feeding roller 53 and the lower roller 51b. In the worst case, the long film LF is long. There is a problem that the film LF can no longer be sent to the downstream side of the break delivery roller 53. In particular, because the length of the cap seal S is short (because the cut length of the long film LF is short), when the feeding roller 52 and the break-off sending roller 53 are close to each other, or the long film LF is fed at a high speed. If this is the case, the problems described above will appear remarkably.

  Then, the subject of this invention is providing the delivery apparatus of the cylindrical film which can send out the long film from which the cylindrical film was cut off smoothly and reliably.

  In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a separation film sewing machine in which a tubular film is continuously connected through a separation perforation and is folded into a sheet shape. A tubular film delivery device for delivering a tubular film while separating the tubular film by sequentially breaking with eyes, the mandrel opening in a predetermined state by inserting the long film, and the long film A support roller that supports the inserted mandrel, a feed roller that sandwiches the long film inserted into the mandrel between the mandrel and feeds the long film, and a feed roller The long film is sandwiched between the mandrel on the downstream side, and the long film is sequentially broken at the separation perforation in cooperation with the feeding roller. And a breaking roller that, the support rollers is to provide a delivery device for tubular film, characterized in that upstream of the feed roller is adapted to support the mandrel. The “breaking roller” mentioned here is not limited to the one having only the breaking function of the long film that breaks the long film at the perforation for separation in cooperation with the feeding roller. Also included is a rupture delivery roller having a tubular film delivery function for delivering the tubular film separated from the mandrel.

  As described above, in the cylindrical film feeding device according to the first aspect of the present invention, the supporting roller for supporting the mandrel is provided independently, and the mandrel is supported on the upstream side of the feeding roller by the supporting roller. Therefore, even if the tubular film is cut between the feeding roller and the breaking roller, the end of the long film located between the feeding roller and the breaking roller is outside of the mandrel in the radial direction. The long film from which the tubular film has been cut off can be smoothly and reliably sent to the downstream side of the breaking roller.

  Hereinafter, embodiments will be described with reference to the drawings. In FIG. 1, the cap seal S is moved to the seal insertion position α while separating the individual cap seals S from the long film LF in a state of being folded into a sheet shape in which the cylindrical cap seals S are continuously connected. The cap seal delivery device 1 is shown that is inserted into the mouth of the container P that is sequentially conveyed to the seal insertion position α by the belt conveyor 30 at a predetermined conveyance pitch by being sequentially transmitted. The cap seal delivery device 1 and the cap seal S correspond to the tubular film delivery device and the tubular film of the present invention.

  The cap seal S is formed of a heat-shrinkable film stretched in the lateral direction made of polyester resin or polystyrene resin, and as shown in FIG. 2 (a), a knob n protruding from the upper end portion. A cut portion e in which the same region as the pick portion n is cut from the lower end, a post-breaking horizontal perforation Mh formed in the middle in the length direction, and a post-breaking horizontal sewing machine There are two post-breaking vertical perforations Mv from the eye Mh to the knob n. The container P whose mouth is sealed by the cap seal S breaks the rear break vertical perforation Mv and the rear break horizontal perforation Mh by picking and pulling the knob n of the cap seal S attached. Thus, the upper half of the cap seal S can be peeled off and opened.

  The long film LF is formed by continuously connecting the above-described cap seal S via the separation perforation M except for the knob part n and the cut part e as shown in FIG. Yes, as shown in FIG. 1, a raw material roll fed out from a raw material roll R wound in a state in which a long raw material film F formed by forming a heat-shrinkable film into a cylindrical shape is folded into a sheet shape. Cuts that form separation perforations M, rear perforation vertical perforations Mv, rear perforation horizontal perforations Mh, and nipping portions n (cutting portions e) on the anti-film F by the punching blades of the perforation processing device MFA. It is formed by punching out. An air dancer device AA is installed between the original fabric roll R and the perforation processing device MFA in order to apply an appropriate tension to the original fabric film F that is continuously drawn out from the original fabric roll R.

  As shown in FIG. 1, the cap seal delivery device 1 is inserted into the mandrel 10 that opens in a predetermined state by inserting a long film LF delivered from the perforation processing device MFA, and the mandrel 10. The long film LF is sandwiched between the mandrel 10 and a pair of left and right feeding rollers 21 that are intermittently fed to the lower side and the mandrel 10 on the downstream side of the feeding roller 21. The pair of left and right breaking rollers 22 for separating the individual cap seals S from the long film LF in cooperation with the feeding roller 21 and the cap seal S separated from the long film LF A pair of left and right delivery rollers 23 that are sandwiched between the mandrel 10 and delivered from the mandrel 10 on the downstream side, and are a long film F is inserted mandrel 10 is supported by a pair of support rollers 24 arranged on the upstream side of the feed roller 21.

  As shown in FIGS. 1 and 3, the mandrel 10 is a pair of left and right upper rollers 11 rotatably supported at positions facing the feeding roller 21, the breaking roller 22, the feeding roller 23, and the support roller 24. The middle film 12, the lower roller 13, and the supported roller 14 are provided, and the long film LF fitted and inserted into the mandrel 10 is fed between the supported roller 14 and the supporting roller 24 and the upper roller 11. It is sandwiched between the roller 21 and between the middle roller 12 and the breaking roller 22.

  As shown in FIG. 3, the feeding roller 21, the breaking roller 22, and the feeding roller 23 are installed right next to the upper roller 11, the middle roller 12, and the lower roller 13. A recess 10 a is formed in a portion corresponding to the support roller 14, and the supported roller 14 protrudes to some extent in the recess 10 a, so that the support roller 24 is in the recess 10 a of the mandrel 10. The mandrel 10 is supported in a vertical state via the supported roller 14 by partially entering and contacting the diagonally lower side of the supported roller 14. Therefore, when the long film LF inserted into the mandrel 10 is sandwiched between the support roller 24 and the supported roller 14, the long film LF is squeezed inward in the radial direction of the mandrel 10.

  Of the feeding roller 21, the breaking roller 22, the feeding roller 23 and the support roller 24, the feeding roller 21 and the supporting roller 24 are driven to rotate simultaneously by a first servo motor. The feed roller 23 is driven to rotate simultaneously by the second servo motor.

  As shown in FIG. 3A, the feeding roller 21 and the breaking roller 22 are the first separation sewing machine from the leading end of the long film LF fed by the feeding roller 21 in a state of being inserted into the mandrel 10. When the feed roller 21 is sandwiched between the upper edge 11 and the second post-breaking horizontal perforation line Mh from the front edge M, the first rear-breaking horizontal edge from the front edge of the long film LF. The perforation Mh and the first separation perforation M from the front end are arranged so as to be sandwiched between the middle roller 12 and in the state shown in FIG. When the rotational driving of the feeding roller 21 and the supporting roller 24 is stopped and the breaking roller 22 and the feeding roller 23 are rotationally driven, the speed difference between the feeding roller 21 and the breaking roller 22 is caused as shown in FIG. , The long film LF is broken at the first perforation M for separation located between the feeding roller 21 and the breaking roller 22 and the individual cap seals S are separated from the long film LF. Become.

  Further, as shown in FIG. 5A, the breaking roller 22 and the feeding roller 23 are arranged so that the feeding roller 23 is separated from the long film LF by the feeding roller 21 and the breaking roller 22 until the cap seal S is separated. As shown in FIG. 4B, the break roller 22 is not in the cap seal S separated from the long film LF by the feeding roller 21 and the break roller 22, as shown in FIG. The cap seal S that has been separated while being sandwiched between the lower roller 12 and the lower roller 13 is disposed so as to be separated from the long film LF. The cap seal S is delivered from the mandrel 10 by the rotational drive of the delivery roller 23 and is sequentially conveyed to the seal insertion position α. It will be inserted into the mouth of the vessel P.

  As described above, in the cap seal delivery device 1, the support roller 24 that supports the mandrel 10 is provided independently, and the support roller 24 supports the mandrel 10 on the upstream side of the feed roller 21. 3B, even if the cap seal S is separated from the long film LF between the feeding roller 21 and the breaking roller 22, the gap between the feeding roller 21 and the breaking roller 22 is as shown in FIG. The end of the long film LF positioned at the end of the long film LF does not spread outward in the radial direction of the mandrel, and the long film LF from which the cap seal S is cut off can be smoothly and reliably sent to the downstream side of the breaking roller 22. it can.

  Therefore, the length of the cap seal S is prominently problematic in that after the cap seal is cut off, the leading end of the long film cannot be smoothly sandwiched between the break roller (break feed roller) and the lower roller. Is short (for example, about 30 to 70 mm) (because the cut length of the long film LF is short), when the feeding roller 21 and the breaking roller 22 are close to each other, or the long film LF is fed at a high speed. This is particularly effective when

  Further, it is possible to detach the cap seal S from the long film LF due to the speed difference between the feeding roller 21 and the breaking roller 22 while rotating both, but when the length of the cap seal S is shortened. That is, when the cut length of the long film LF is shortened, the separation perforation formed on the long film LF before the time required for separating the cap seal S from the long film LF at the separation perforation M elapses. The perforation M may pass between the feeding roller 21 and the breaking roller 22. In such a case, the cap seal S is removed from the long film LF by the feeding roller 21 and the breaking roller 22. There is a risk that it cannot be reliably cut off.

  However, in the cap seal delivery device 1, as described above, when the cap seal S is separated from the long film LF by the feed roller 21 and the breaking roller 22, the rotational drive of the feed roller 21 is stopped. Therefore, even when the length of the cap seal S is short, the separation perforation M formed on the long film LF is fed to the feeding roller 21 until the cap seal S is separated from the long film LF. The cap seal S can be reliably separated from the long film LF.

  In the above-described embodiment, the feed roller 21, the breaking roller 22, the feed roller 23, and the support roller 24 are intermittently driven to rotate at the same speed. However, the present invention is not limited to this. If the roller 21 and the support roller 24 are rotated at the same speed, the cap roller S is separated from the long film LF by increasing the speed of the breaking roller 22 as necessary, or the feeding roller 23 is adjusted as necessary. By increasing the speed, the cap seal S separated from the long film LF can be sent out at a high speed.

  Further, in each of the above-described embodiments, the long film LF inserted into the mandrel 10 and the cap seal S separated from the long film LF are connected to the mandrel 10 by the feeding roller 21, the breaking roller 22, and the feeding roller 23. In such a state that these rollers are sandwiched between the long film LF and the cap seal S from the long film LF by intermittently rotating the rollers at a predetermined timing or changing the rotation speed of the rollers at a predetermined timing. Or the cap seal S separated from the long film LF is sent out from the mandrel 10, but the present invention is not limited to this, and the feed roller 21, the break roller 22 and the feed roller 23 are not limited thereto. These rollers are rotated with respect to the mandrel 10 at a predetermined timing while continuously rotating at a constant speed. By contacting away, or disconnect cap seal S elongated film LF was fitted on the mandrel 10, a cap seal S, separated from the elongated film LF may be or transmitted from the mandrel 10. However, when the feed roller 21 is brought into contact with and separated from the mandrel 10, the support roller 24 cannot be positively driven to rotate, and therefore, the support roller 24 may be supported rotatably.

  In each of the above-described embodiments, the breaking roller 22 and the feeding roller 23 are provided independently. However, the present invention is not limited to this, and it is possible to use both the breaking roller and the feeding roller. It is also possible to hang the belt between the breaking roller and the delivery roller, and to separate and feed the cap seal S by driving the belt.

  In the embodiment described above, the pair of left and right feed rollers 21, the breaking roller 22, the feed roller 23, and the support roller 24 are provided, but the present invention is not limited to this. In addition to the pair of left and right rollers, It is also possible to provide a pair of rollers in the front-rear direction.

  Moreover, in each embodiment mentioned above, parts other than the knob | pick part n in the cap seal S cut | disconnected from the long film LF and the long film LF are provided between the mandrel 10 by the feeding roller 21, the breaking roller 22, and the feeding roller 23. However, the present invention is not limited to this. The feeding roller 21, the breaking roller 22, and the feeding roller 23 are not limited to the long film LF and the grip portion n of the cap seal S separated from the long film LF. May be sandwiched between the mandrel 10 and the like.

  In the above-described embodiment, the perforated film F fed from the raw roll R is perforated by the perforation processing device MFA, and the separation perforation M, the rear perforation vertical perforation Mv, and the rear perforation horizontal perforation Mh. In addition, the long film LF is formed by punching the cut line, but the present invention is not limited to this, and is not limited to this. The separation perforation M, the post-breaking vertical perforation Mv, the post-breaking horizontal perforation Mh, and It is also possible to use an original fabric roll wound with a long film LF having a cut formed in advance.

  In the above-described embodiment, the cap seal delivery device that delivers the cap seal S in which the rear perforation horizontal perforation Mh and the rear perforation vertical perforation Mv are formed to the mouth of the container P has been described. It is not limited, and the present invention can be applied to a cap seal delivery device that delivers a cap seal in which such a post-breaking horizontal perforation or a post-breaking vertical perforation is not formed. Not too long.

  Moreover, although each embodiment mentioned above demonstrated the cap seal delivery apparatus used when the cap seal S was inserted by the opening part of the container P, it is not limited to this, This invention is various. Needless to say, the present invention can be applied to the case where the cylindrical film is fed while being separated from the long film by the separation perforation.

It is a schematic block diagram which shows the cap seal delivery apparatus which is one Embodiment of the delivery apparatus of the cylindrical film concerning this invention. (A) is a perspective view which shows the cap seal | sticker sent out by the cap seal delivery apparatus same as the above, (b) is a perspective view which shows the elongate film to which the cap seal same as the above was connected continuously. (A), (b) shows the support state of the mandrel by the support roller in the cap seal delivery device same as above, the positional relationship of the feeding roller, the breaking roller, the delivery roller and the separation operation of the cap seal from the long film. It is explanatory drawing for demonstrating. It is a schematic block diagram which shows the conventional cap seal delivery apparatus. It is a perspective view which shows an example of a cap seal. It is a perspective view which shows the elongate film with which the cap seal same as the above was connected continuously. It is explanatory drawing for demonstrating the problem of the conventional cap seal delivery apparatus.

Explanation of symbols

1 Cap seal delivery device (cylinder film delivery device)
DESCRIPTION OF SYMBOLS 10 Mandrel 10a Indentation part 11 Upper roller 12 Middle roller 13 Lower roller 14 Supported roller 21 Feeding roller 22 Breaking roller 23 Feeding roller 24 Support roller 30 Belt conveyor AA Air dancer device MFA Perforation processing device S Cap seal (cylindrical film) )
M Perforation for separation Mh Lateral perforation for post-breaking Mv Vertical perforation for post-breaking n Knob LF Long film α Seal insertion position

Claims (1)

The long film in a state of being folded into a sheet shape, in which the tubular film is continuously connected through the perforation for separation, is sent out while separating the tubular film by sequentially breaking at the perforation for separation. A cylindrical film delivery device that,
A mandrel that opens in a predetermined state by inserting the long film;
A support roller for supporting the mandrel in which the long film is inserted;
A feed roller that sandwiches the long film inserted into the mandrel between the mandrel and feeds out the long film;
A break roller that sandwiches the long film between the mandrel and the mandrel on the downstream side of the feed roller and sequentially breaks the long film at the separation perforation in cooperation with the feed roller. ,
The cylindrical film feed device according to claim 1, wherein the support roller is configured to support the mandrel upstream of the feed roller.

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