JP5917090B2 - Film fitting device - Google Patents

Description

  The present invention relates to a film fitting apparatus for fitting a cylindrical film such as a cap seal or a label onto a fitting body such as a bottle container.

  For example, as a label fitting apparatus that fits a cylindrical shrink label on a body portion of a bottle container, there are those shown in FIGS. 9 (a) and 9 (b). As shown in the figure, the label fitting device 70 is adapted to fit a long belt-like tubular film LF in a state of being folded into a sheet shape, to which a tubular label L is continuously connected, to a mandrel 71. The individual labels L are formed in a state of being fitted on the mandrel 71 by sequentially cutting to a predetermined length by the cutting unit 72 while opening in a predetermined state, and then the label L fitted on the mandrel 71 is removed. The pair of belt conveying units 73 disposed in the upper half of the mandrel 71 conveys the lower end of the mandrel 71 to the lower end of the label L, and the pair of shot rollers 74 disposed on the lower end of the mandrel 71 and the mandrel 71. When the bottle container B being conveyed passes through the label fitting position directly below the mandrel 71, the passage timing is determined. Together, by rotating the pair of shots rollers 74, the label L by transmitting the lower side of the mandrel 71 is adapted to fit the the body of the bottle B.

Japanese Patent No. 3901794

  By the way, in the label fitting apparatus 70 as described above, the lower end portion of the label L conveyed to the lower end of the mandrel 71 is made to wait while being sandwiched between the pair of shot rollers 74 and the mandrel 71, and the bottle container B is When passing the label fitting position, the pair of shot rollers 74 are intermittently driven such that the pair of shot rollers 74 is rotated in accordance with the passage timing and the label L is sent to the lower side of the mandrel 71. Therefore, as shown in FIG. 10, a certain amount of acceleration time is required from when the shot roller 74 starts to rotate until it reaches a rotational speed (hereinafter referred to as final rotational speed) Vo corresponding to the fitted speed. Δt is required.

  Thus, since the label L cannot be delivered at the fitted speed Vo after the shot roller 74 starts to rotate until the final rotational speed Vo is reached, after the label L is started to be delivered, There is a limit to shortening the time (fitting time) to be fitted to the body part of the container B.

  As described above, when the label L is fitted while being moved without stopping the bottle container B at the label fitting position, when the fitting time of the label L becomes long, the label L is fitted to the bottle container B. Since the movement distance of the bottle container B from the beginning until the fitting is finished increases, as shown in FIG. 11A, in order to fit the label L into the bottle container B securely, the label L The folding diameter (diameter D1) must be increased. On the contrary, when the fitting time of the label L is shortened, the movement distance of the bottle container B from the beginning of fitting the label L to the bottle container B to the end of fitting is reduced. As shown in FIG. 3, even if the folding diameter (diameter D2) of the label L is reduced, the label L can be reliably fitted to the bottle container B. However, at the label fitting position as described above, there is a limit to shortening the fitting time, and thus there is a limit to reducing the folding diameter.

  Then, the subject of this invention is providing the film fitting apparatus which can shorten the fitting time required in order to fit a cylindrical film on a to-be-fitted body.

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a mandrel while opening a cylindrical film of a predetermined length formed by sequentially cutting a cylindrical long film by fitting the mandrel on the mandrel. In the film fitting apparatus in which the cylindrical film is fitted to the fitted body that passes directly under the mandrel by sequentially sending the cylindrical film fitted to the lower side, the long film has a predetermined length. Film cutting means for cutting the cylindrical film with a cutter, film transfer means for transferring the cylindrical film or long film downward while synchronizing with the film cutting means, the film cutting means and the film transfer is disposed below the means, the tubular film that is fitted onto the mandrel, from the standby state sandwiched between the mandrel, the passage of the Hamakarada An upper shot roller rotates intermittently performs the operation of sending to the lower side at a predetermined delivery rate in accordance with the timing, the tubular film that is delivered to the lower side by the upper shot roller always Hasamikomeru state between the mandrel The cylindrical film that is disposed and is sent to the lower side at a predetermined delivery speed by the upper shot roller is received and continuously sent to the lower side, so that the tubular film is fitted to the fitted body that passes directly under the mandrel. A lower-order shot roller that rotates continuously , and the lower-order shot roller rotates at a constant speed at a rotational speed corresponding to the fitted speed when the tubular film is sandwiched between the mandrel and the lower-order shot roller. The film covering apparatus characterized by these is provided.

  In addition, when the film delivery speed of the lower shot roller is higher than the film delivery speed of the upper shot roller when the tubular film is delivered from the upper shot roller to the lower shot roller, It is necessary to set the height position of the upper shot roller so that the upper shot roller and the lower shot roller do not sandwich the cylindrical film at the same time, but when the cylindrical film is transferred from the upper shot roller to the lower shot roller. If the film delivery speed is the same, the upper shot roller and the lower shot roller may sandwich the cylindrical film at the same time.

  The invention according to claim 2 is the film fitting apparatus according to claim 1, wherein the feeding speed of the tubular film by the lower shot roller is larger than the feeding speed of the tubular film by the upper shot roller. It is a feature.

According to a third aspect of the present invention, there is provided a cylinder fitted on a mandrel while opening by fitting a cylindrical film of a predetermined length formed by sequentially cutting a cylindrical long film on the mandrel. In a film fitting apparatus in which a tubular film is fitted onto a fitted body that passes directly under a mandrel by sequentially sending the shaped film downward, a long film is cut into a tubular film of a predetermined length. A film cutting means for cutting the film, a film transferring means for transferring a cylindrical film or a long film to the lower side while synchronizing with the film cutting means, and a lower side of the film cutting means and the film transferring means. is set, the tubular film that is fitted onto the mandrel, from the standby state sandwiched between the mandrel, in accordance with the passing timing of the Hamakarada An upper shot roller rotates intermittently performs the operation of sending to the lower side at a constant delivery rate, are arranged in a constantly Hasamikomeru state between the mandrel tubular film delivered to the lower side by the upper shot rollers, upper The cylindrical film sent to the lower side at a predetermined delivery speed by the shot roller is received and continuously sent to the lower side to perform the operation of fitting the cylindrical film on the fitting body passing directly under the mandrel. A lower shot roller that rotates continuously, and when the lower shot roller receives the tubular film from the upper shot roller, the peripheral speed of the upper shot roller and the peripheral speed of the lower shot roller are substantially the same, and the lower shot roller The roller is characterized in that the received cylindrical film is accelerated after being separated from the upper shot roller. That the film is intended to provide an object to be fitted device.

  The invention according to claim 4 is the film fitting apparatus according to claim 1, 2, or 3, wherein the fitted body has a smaller head than the trunk, and the lower end of the mandrel includes: A groove extending in the conveying direction of the fitted body is formed, and when the fitted body passes directly below the mandrel, the small-diameter head of the fitted body passes through the groove. It is characterized by.

As described above, in the film fitting apparatus according to the first aspect of the present invention, the continuously rotating lower shot roller that performs the operation of fitting the tubular film fitted onto the mandrel onto the fitted body includes the tubular film. When sandwiched between the mandrel, the shot roller is driven at a constant speed at a rotation speed corresponding to the fitting speed, so that the shot roller is driven intermittently. Unlike conventional film-fitting devices that require a certain amount of acceleration time to reach the speed (final rotation speed of the shot roller), it is possible to send the cylindrical film at the fitting speed from the start of delivery. it can.

  Therefore, compared with the conventional film-fitting device, the time (fitting time) required for fitting the tubular film to the fitting object after the delivery of the tubular film can be shortened. Thus, an effect that the folding diameter of the tubular film can be reduced is obtained.

  In the invention according to claim 2, since the feeding speed of the cylindrical film by the lower shot roller is made larger than the feeding speed of the cylindrical film by the upper shot roller, the fitting time can be further shortened, The folding diameter of the film-like film can be further reduced.

Further, in the invention according to claim 3, when the continuously rotating lower shot roller receives the cylindrical film from the upper shot roller, the peripheral speed of the lower shot roller is substantially the same as the peripheral speed of the upper shot roller. Since the shot roller is designed to increase the speed after receiving the cylindrical film, the shot roller is driven intermittently, so unlike the conventional film fitting device that accelerates from the stopped state to the fitting speed, The acceleration time required to reach a predetermined covering speed is shortened. As a result, the covering time can be shortened as compared with the conventional film covering apparatus. Can be reduced.

  By the way, in this kind of film covering apparatus, since the tubular film folded in a sheet shape is opened by covering the mandrel, the lower end side of the tubular film protruding from the mandrel is a crease. When the tubular film is fitted into a fitting body whose head is smaller in diameter than the trunk portion, the lower end portion of the tubular film is the fitting body. There is a problem that the tubular film cannot be fitted onto the fitted body smoothly and reliably.

  However, in the film fitting apparatus of the invention according to claim 4, a groove extending in the conveying direction of the fitted body is formed at the lower end of the mandrel, and when the fitted body passes directly under the mandrel, Since the small-diameter head of the fitting is in the groove, the lower end of the mandrel and the large-diameter trunk of the fitted body approach each other when the fitted body passes directly under the mandrel. It is in a state. Accordingly, the tubular film that has jumped out of the mandrel starts to be fitted into the body of the fitting body with the lower end of the tubular film not greatly squeezed, so that the lower end of the tubular film hits the shoulder of the fitting body. It is difficult to touch, and the tubular film can be smoothly and reliably fitted to the fit object.

(A) is a schematic side view which shows the label covering apparatus which is one Embodiment of the film covering apparatus which concerns on this invention, (b) is the schematic side view which looked at the label covering apparatus same as the above from the other direction. . (A)-(c) is operation | movement explanatory drawing for demonstrating operation | movement of a label covering apparatus same as the above. It is a timing chart which shows operation | movement of a high-order shot roller and a low-order shot roller in a label covering apparatus same as the above. (A) is a timing chart which shows the fitting time in a label fitting apparatus same as the above, (b) is a timing chart which shows the fitting time in the conventional fitting apparatus. (A) is a timing chart which shows the fitting time of the label fitting apparatus which is other embodiment, (b) is a timing chart which shows the fitting time in the conventional fitting apparatus. It is a timing chart which shows operation | movement of the high-order shot roller and low-order shot roller in the label covering apparatus which is other embodiment. It is a timing chart which shows operation | movement of the high-order shot roller and low-order shot roller in the label covering apparatus which is other embodiment. (A) is a schematic side view which shows other embodiment of the label fitting apparatus based on this invention, (b) is the schematic side view which looked at the label fitting apparatus same as the above from the other direction. (A) is a schematic side view which shows the conventional label fitting apparatus, (b) is the schematic side view which looked at the film fitting apparatus same as the above from the other direction. It is a timing chart which shows operation | movement of the shot roller in a label covering apparatus same as the above. (A), (b) is explanatory drawing for demonstrating the relationship between the covering time of a label, and the folding diameter (diameter) of a label.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows a label fitting device 1 for fitting a cylindrical label L formed of a shrink film on a body portion of a bottle container B. As shown in FIGS. 1A and 1B, the label fitting device 1 is individually separated from a label-forming substrate LM in a state of being folded into a sheet shape in which cylindrical labels L are continuously connected. By sequentially feeding the label L to the label fitting position α while separating the label L, the label L is fitted to the body of the bottle container B that is sequentially conveyed to the label fitting position α at a predetermined conveyance pitch. And a base material comprising a driving roller 11 and a driven roller 12 that intermittently feeds the label forming base material LM fed from a raw material roll (not shown) mounted on the raw material supply device to the cutting position α. Disposed between the delivery unit 10, the mandrel 20 that opens in a predetermined state by fitting the label-forming substrate LM delivered by the substrate delivery unit 10, and the substrate delivery unit 10 and the mandrel 20. The label-forming base material LM is sequentially cut at a predetermined cut pitch, so that the guillotine-type base material cutting unit 30 that forms individual labels L and the label L that is cut off in a state of being fitted to the mandrel 20 A label transfer means 40 for continuously transferring the label L to the lower side of the mandrel 20, a pair of upper shot rollers 50 for receiving the label L transferred by the label transfer means 40 and sending it to the lower end side of the mandrel 20, and It includes a pair of lower shot rollers 60 that receive the label L sent by the upper shot roller 50 and send it to the label fitting position α.

  As shown in FIGS. 1A and 1B, the mandrel 20 has a wedge-shaped label opening 21 having a tapered upper end and a circular label shaping section 25 fitted to the lower portion of the label opening 21. And a columnar skirt portion 27 formed continuously with the lower end portion of the label shaping portion 25 and having a groove portion 27a through which the head of the bottle container B can pass at the lower end. The label forming substrate LM fitted on the upper end is gradually opened by being transferred to the lower side of the label opening 21 and shaped into a circular shape by being fitted on the label shaping unit 25. It is like that.

  In the lower half of the label opening 21, a pair of upper rollers 22 and a pair of middle rollers 23 with the peripheral surfaces slightly projecting from the upstream and downstream side surfaces of the bottle container B in the transport direction. And a pair of lower rollers 24 are rotatably attached to each of the side surfaces of the label opening 21, and recesses 21 a that expose the lower peripheral surfaces of the respective middle rollers 23 are formed.

  In addition, a pair of rollers 26 sandwiching the label L between the pair of upper shot rollers 50 at a position orthogonal to the conveyance direction of the bottle container B are slightly disposed on the lower end of the label shaping unit 25. A pair that is rotatably attached in a protruding state, and sandwiches a label L between a pair of lower shot rollers 60 at a lower end portion of the skirt portion 27 at a position orthogonal to the conveying direction of the bottle container B. The roller 28 is rotatably mounted with its peripheral surface slightly protruding, and as shown in FIGS. 2B and 2C, the upper shot roller 50 and the lower shot roller 60 are the same. The distance between the roller 26 and the roller 28 is set slightly larger than the length of the label L so as not to sandwich the label L at the same time.

  As shown in FIG. 1A, the label transfer means 40 is attached to the label opening 21 of the mandrel 20, and the label L separated from the label forming substrate LM by the substrate cutting unit 30 is used. An upstream feed belt unit 40A and a downstream feed belt disposed on the upstream side and the downstream side in the transport direction of the bottle container B in the mandrel 20, which are sandwiched between the label opening 21 and transferred to the label shaping unit 22. The upstream feed belt unit 40A and the downstream feed belt unit 40B are each composed of a drive pulley 41, four driven pulleys 42, 43, 44, 45, and a feed belt 46 stretched around them. It consists of and.

  The driving pulley 41 and the driven pulleys 44 and 45 are disposed at positions corresponding to the lower roller 24, the upper roller 22, and the middle roller 23 of the label opening 21 in the mandrel 20, respectively. 22, the label L is sandwiched between the middle roller 23 and the intermediate belt 23 via a feed belt 46.

  The drive pulley 41 and the driven pulleys 44 and 45 of the upstream feed belt unit 40A and the downstream feed belt unit 40B are rotatably supported by the same support member, and the driven pulley 45 is a label opening in the mandrel 20. The mandrel 20 is supported via the middle roller 23 by entering the recess 21 a formed in 21.

  The feed belt 46 synchronizes with the driving roller 11 of the base material delivery unit 10 while the label forming base material LM is formed at the same speed as the feed speed of the label forming base material LM by the base material delivery unit 10. However, after the substrate forming unit 10 stops the label forming substrate LM and the substrate cutting unit 30 cuts the label forming substrate LM, the separated label L is transferred to the substrate 25. It is transferred to the label shaping unit 25 of the mandrel 25 at a speed faster than the delivery speed of the label forming substrate LM by the delivery unit 10.

  The upper shot roller 50 stands by in a state where the lower end portion of the label L is sandwiched between the roller 26 as shown in FIG. 2A, and at the delivery start timing Ts as shown in FIG. The peripheral speed corresponding to a predetermined final delivery speed (hereinafter referred to as final delivery peripheral speed) Vm is gradually increased while gradually increasing, and gradually decelerated from the time Te when the label L is completely delivered. However, at the timing Tr immediately before the stop, the lower end portion of the next label L is sandwiched between the rollers 26 and stopped in the state shown in FIG. Thereafter, this operation is repeated.

  On the other hand, the lower shot roller 60 has a larger diameter than the upper shot roller 50 as shown in FIG. 1, and the final delivery peripheral speed Vm of the upper shot roller 50 is during operation of the apparatus as shown in FIG. It is always rotating at a constant speed at a circumferential speed Vc of about 3 times higher.

  As described above, in the label fitting apparatus 1, as shown in FIGS. 4A and 4B, the final peripheral speed V0 of the shot roller corresponding to the fitting speed of the conventional label fitting apparatus is larger. Since the label L fitted on the mandrel 20 by the lower shot roller 60, which is always rotating at a constant speed at the peripheral speed V1, is fitted on the body of the bottle container B, FIG. As shown, since a single shot roller is intermittently driven, a certain amount of acceleration time is required from when the shot roller starts to rotate until it reaches a predetermined fitting speed (final peripheral speed V0 of the shot roller). Unlike a conventional label fitting apparatus that requires t, the label L can be sent out at the fitting speed (the peripheral speed V1 of the lower shot roller 60) from the fitting start time. Accordingly, the fitting time T of the label fitting device 1 can be greatly shortened compared to the fitting time t of the conventional label fitting device, and accordingly, the folding diameter of the label L can be reduced. The effect of being able to be obtained. More specifically, for example, when a label L having a length of 160 mm is fitted by a conventional label fitting device, the fitting time t is 40.5 ms, and the movement distance of the bottle container in the meantime is 8.3 mm. However, when the same label L is fitted to the bottle container B using the label fitting apparatus 1, the fitting time T is 7.6 ms, and the movement distance of the bottle container B during that time is 1.57 mm. Therefore, when this label fitting apparatus 1 is used, the folding diameter of the label L can be reduced by about 3.5 mm compared with the case where a conventional apparatus is used. In addition, the area of each shaded display part in FIGS. 4 (a) and 4 (b) indicates the moving distance of the label when the label is fitted, and in the label fitting apparatus 1 shown in FIG. 4 (a). The shaded display portion and the shaded display portion in the conventional fitted device shown in FIG.

  When the label L is fitted to the body of the bottle container B by a single shot roller that rotates intermittently as in the conventional label fitting device, the rotation corresponding to the final fitting speed of the intermittently rotating shot roller Although the speed cannot be increased extremely, in this label fitting apparatus 1, the lower shot roller 60 that continuously rotates the label L sent by the upper shot roller 50 that rotates intermittently is received and the body of the bottle container B is covered. Since the double shot roller method is employed, the rotation speed of the lower shot roller 60 that rotates continuously can be increased to about 1.5 times the rotation speed of the upper shot roller 50 that rotates intermittently. Compared with the label fitting apparatus, the fitting time of the label L can be remarkably shortened.

  By the way, in this label covering apparatus 1, since the label L folded in a sheet shape is opened by covering the mandrel 20, the lower end side of the label L protruding from the skirt part 27 of the mandrel 20 is When the label L is fitted to the bottle container B whose head is smaller in diameter than the trunk part due to the fold springback, the bottom of the label L is the bottle container. There is a possibility that the label L cannot be fitted onto the body of the bottle container B smoothly and reliably by contacting the shoulder of B.

  However, in this label fitting apparatus 1, a groove portion 27 a extending in the transport direction of the bottle container B is formed at the lower end portion of the skirt portion 27 in the mandrel 20, and when the bottle container B passes directly below the mandrel 20. Since the small-diameter head of the bottle container B enters the groove 27a, when the bottle container B passes directly under the mandrel 20, the lower end of the mandrel 20 (skirt part 27) and the bottle container It is in the state which the large diameter trunk | drum of B approached. Accordingly, since the label L that has jumped out of the mandrel 20 begins to be fitted into the body of the bottle container B without the lower end of the label L being greatly reduced, the lower end of the label L abuts against the shoulder of the bottle container B. It is difficult to fit the label L into the bottle container B smoothly and reliably.

  In the above-described embodiment, the lower shot roller 60 always rotates at a constant speed at a peripheral speed V1 that is about three times higher than the final peripheral speed V0 of the shot roller corresponding to the fitting speed of the conventional label fitting apparatus. However, the present invention is not limited to this, and as shown in FIGS. 5A and 5B, the peripheral speed of the lower shot roller 60 is set to the final peripheral speed V0 of the shot roller in the conventional label fitting apparatus. In this case, the fitting time T1 can be shortened compared to the fitting time t of the conventional label fitting device, and accordingly, the folding diameter of the label L can be reduced. The effect that it can be made small is acquired. 5 (a) and 5 (b), the area of each shaded display portion indicates the moving distance of the label when the label is fitted, and the label fitting apparatus shown in FIG. 5 (a). The shaded display portion in FIG. 1 and the shaded display portion in the conventional fitted device shown in FIG.

  Moreover, in each embodiment mentioned above, although the low-order shot roller 60 is always rotating at constant speed with the peripheral speed V1 or V0 corresponding to a fitting speed, it is not limited to this, It shows in FIG. As described above, after the lower shot roller 60 receives the label L at the substantially same peripheral speed as the final delivery peripheral speed Vm of the upper shot roller 50, the lower shot roller 60 increases the speed to the final peripheral speed Vh corresponding to the fitted speed. You may make it decelerate to substantially the same peripheral speed as the final sending peripheral speed Vm of the high-order shot roller 50, decelerating gradually from the time of complete covering.

  Further, as shown in FIG. 7, the lower shot roller 60 is fitted in the middle of increasing the speed to the final peripheral speed Vh after receiving the label L at the substantially same peripheral speed as the final delivery peripheral speed Vm of the upper shot roller 50. The work may be completed.

  As described above, when the lower shot roller 60 is accelerated after receiving the label L at the substantially same peripheral speed as the final delivery peripheral speed Vm of the upper shot roller 50, the shot roller is moved from the stopped state to the fitting speed. Unlike the conventional film fitting device that accelerates, the acceleration time required to reach a predetermined fitting speed is shortened, and as a result, the fitting time can be shortened compared to the conventional film fitting device. In connection with this, the effect that the folding diameter of a cylindrical film can be made small is acquired.

  In these embodiments, at the same time the lower shot roller 60 receives the label L, the label L moves away from the upper shot roller 50, and the lower shot roller 60 starts to accelerate immediately. If the roller 50 and the lower shot roller 60 are rotating at substantially the same peripheral speed, the lower shot roller 60 receives the label L just before the label L leaves the upper shot roller 50, and the label L After leaving the upper shot roller 50, the lower shot roller 60 may start increasing the speed.

  In the above-described embodiment, the guillotine-type substrate cutting unit 30 is disposed on the upstream side of the mandrel 20, but the present invention is not limited to this. For example, FIGS. 8 (a) and 8 (b) A rotary cutter 30A that cuts the label forming base material LM opened by the mandrel 20 to a predetermined length is disposed so as to surround the mandrel 20 as in the label fitting apparatus 1A shown in FIG. The label forming substrate LM may be cut when the upper shot roller 50 grips the portion. In this label fitting apparatus 1A, an upstream roller unit comprising two upper and lower rollers 47, 48 is used instead of the label transfer means 40 that conveys the label L mounted on the label fitting apparatus 1 described above. A label transfer means 40 having 40C and a downstream roller unit 40D is employed.

  Further, in each of the above-described embodiments, the lower shot roller 60 is disposed at the lower end position of the mandrel 20. However, the lower shot roller 60 may be disposed at a position below the mandrel 20. It is not limited to the lower end position.

  Further, the mandrel does not need to be entirely formed of a rigid metal body or the like. For example, a hanging plate spring is continuously provided at the lower end of the skirt portion 27 in the above-described embodiment, and the lower shot roller is provided with this lower shot roller. When a configuration in which a label is sandwiched between the leaf springs is employed, the leaf springs are also included in the mandrel components.

  Moreover, in embodiment mentioned above, although the label L was cut | disconnected from the elongate label formation base material LM, and the label fitting apparatus 1 and 1A fitted to the trunk | drum of the bottle container B were demonstrated, it is limited to this. Not a thing, the film covering device of the present invention, for example, while opening a tubular film folded into a sheet shape, such as a cap seal fitting device that fits a cylindrical cap seal on the mouth of a container, The present invention can be applied to various devices that are fitted on a fitting body such as a container.

  The present invention can be used as a device for fitting a tubular film such as a shrink label or a cap seal to a fitting body such as a container.

1, 1A Label fitting device (film fitting device)
DESCRIPTION OF SYMBOLS 10 Substrate delivery unit 11 Drive roller 12 Driven roller 20 Mandrel 21 Label opening 21a Depression 22 Upper roller 23 Middle roller 24 Lower roller 25 Label shaping portion 26 Roller 27 Skirt portion 27a Groove portion 28 Roller 30 Substrate cutting unit 30A Rotary Cutter 40 Label transfer means 40A Upstream feed belt unit 40B Downstream feed belt unit 40C Upstream roller unit 40D Downstream roller unit 41 Drive pulley 42, 43, 44, 45 Driven pulley 46 Feed belt 47, 48 Roller 50 Upper shot roller 60 Lower Shot Roller B Bottle Container (Subject)
L label (tubular film)
LM label forming substrate

Claims (4)

The cylindrical film fitted on the mandrel is sequentially sent downward while the cylindrical film of a predetermined length formed by sequentially cutting the cylindrical long film is opened by fitting on the mandrel. In the film fitting apparatus adapted to fit the tubular film to the fitted body passing directly under the mandrel,
Film cutting means for cutting a long film into a cylindrical film of a predetermined length by a cutter;
Film transfer means for transferring a cylindrical film or a long film downward while synchronizing with the film cutting means;
The cylindrical film disposed below the film cutting means and the film transporting means and fitted on the mandrel is placed in a predetermined state in accordance with the passing timing of the fitted body from the standby state sandwiched between the film and the mandrel . A high-order shot roller that rotates intermittently to perform the operation of sending downward at the delivery speed ;
The cylindrical film sent downward by the upper shot roller is arranged so as to be always sandwiched between the mandrel, and the cylindrical film sent downward by the upper shot roller at a predetermined delivery speed is continuously received. The lower shot roller that rotates continuously to perform the operation of fitting the tubular film on the fitted body that passes directly under the mandrel by sending it downward.
The low-order shot roller rotates at a constant speed at a rotation speed corresponding to the fitting speed when the tubular film is sandwiched between the mandrel and the film fitting apparatus.   The film covering apparatus according to claim 1, wherein a feeding speed of the tubular film by the lower shot roller is larger than a feeding speed of the tubular film by the upper shot roller. The cylindrical film fitted on the mandrel is sequentially sent downward while the cylindrical film of a predetermined length formed by sequentially cutting the cylindrical long film is opened by fitting on the mandrel. In the film fitting apparatus adapted to fit the tubular film to the fitted body passing directly under the mandrel,
Film cutting means for cutting a long film into a cylindrical film of a predetermined length by a cutter;
Film transfer means for transferring a cylindrical film or a long film downward while synchronizing with the film cutting means;
The cylindrical film disposed below the film cutting means and the film transporting means and fitted on the mandrel is placed in a predetermined state in accordance with the passing timing of the fitted body from the standby state sandwiched between the film and the mandrel . A high-order shot roller that rotates intermittently to perform the operation of sending downward at the delivery speed ;
The cylindrical film sent downward by the upper shot roller is arranged so as to be always sandwiched between the mandrel, and the cylindrical film sent downward by the upper shot roller at a predetermined delivery speed is continuously received. The lower shot roller that rotates continuously to perform the operation of fitting the tubular film on the fitted body that passes directly under the mandrel by sending it downward.
When the lower shot roller receives the cylindrical film from the upper shot roller, the peripheral speed of the upper shot roller and the peripheral speed of the lower shot roller are substantially the same. A film-fitting device, characterized in that the speed is increased after leaving the shot roller. The to-be-inserted body has a smaller head than the trunk,
At the lower end of the mandrel, a groove is formed that extends in the conveying direction of the fit object,
The film fitting apparatus according to claim 1, 2 or 3, wherein a small-diameter head of the fitted body passes through the groove when the fitted body passes directly below the mandrel.

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