JPH11348940A - Shrink packaging device and shrink packaging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote the miniaturization of a shrink packaging device and the simplification of a packaging process so that a handle is stably attached with excellent accuracy, and the cutting accuracy of a shrink film is improved in the shrink packaging device and the shrink packaging method. SOLUTION: In a shrink packaging device in which a shrink film 101 which is cut to a specified length and fed from a film carrying passage 35 is wound to effect the sleeve packaging around an article 2 carried on an article carrying passage 10, and then, the shrink film 101 is heat-shrunk to shrink-package the article, a tape attaching device 90 for a handle to attach a tape 5 for the handle to a specified place of the shrink film 101 in advance prior to the sleeve packaging is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shrink wrapping apparatus and a shrink wrapping method suitable for shrink wrapping a predetermined number of beverage cans and drink packs.

[0002]

2. Description of the Related Art Shrink wrapping, in which a plurality of cans, packs, and the like are collectively packaged by a film, has been performed.
One example is shrink wrapping of beverage cans with a carrying handle outside the film. FIG.
FIG. 1 is a diagram illustrating an example of a beverage can and shrink packaging of the beverage can, and FIG. 1A is a perspective view illustrating an example of schematic dimensions of the beverage can.
(B) is a perspective view showing an example in which four cans 2 are collectively shrink-wrapped with a shrink film (hereinafter abbreviated as film) 101, and (c) is a film 10 in which six cans 2 are collectively collected.
1 is a perspective view showing an example of shrink wrapping at 1.

[0003] Beverage cans that are subject to shrink packaging include:
Although there are various standards, as an example of the dimensions of the beverage can, a diameter of about 66 mm and a height of about 1 as shown in FIG.
There is a thing of 68 mm. 6 (b) and 6 (c), the cans 2 are arranged in a predetermined number and in a predetermined shape by shrink wrapping and assembled into blocks (referred to as shrink blocks) 85. Here, the handle tape 5 is mounted on the film 101 constituting the outer surface of the shrink block 85. The handle tape 5 is affixed to the outer surface of the film 101 above the shrink block 85 such that both end portions of the handle tape 5 straddle the two opposing side surfaces of the shrink block 85.

[0004] Of course, this handle tape 5 is adhered to the surface of the film 101 of the shrink block 85 only at both ends as an adhesive portion, and the intermediate portion thereof is attached to the outer surface of the film 101 of the shrink block 85. Instead, the intermediate part can be used as a handle. Such a shrink wrap with a handle,
For example, it is performed by a shrink wrapping apparatus (shrink wrapping machine) as shown in FIG. 7A and 7B are diagrams showing a schematic configuration of the shrink wrapping apparatus. FIG. 7A is a schematic side view showing an arrangement of each part of the shrink wrapping apparatus on a line, and FIG.
FIG. 3 is a schematic perspective view illustrating a shrink wrapping process.

First, the schematic structure and steps of a shrink wrapping apparatus will be described. As shown in FIGS. 7 (a) and 7 (b),
The shrink packaging apparatus mainly includes a can supply conveyor unit (hereinafter, referred to as a can supply conveyor) 10 for supplying the can 2, a film packaging unit 160 including a film feeding device 165 and a film packaging device (sleeve packaging device) 166. And the shrink tunnel section (hereinafter referred to as shrink tunnel)
170 and a handle tape affixing section 190, which are sequentially arranged on the line.

With such a configuration, first, the cans 2 are fed to the film packaging apparatus 166 by the can supply conveyor 10 in a group state (can group) 8 in which many cans are gathered and arranged. At this time, the can groups 8 are grouped by a predetermined number before being sent to the film packaging device 166 on the can supply conveyor 10. That is, the film packaging device 1
66, the can group 8 is divided into pieces (here, six pieces) per shrink package, and is arranged in a predetermined arrangement (here, two pieces in the line direction and three pieces in the horizontal direction). ).

In this way, the film packaging device 166
Group-shaped cans 2 fed to the film feeder 1
The film 101 fed to the film packaging device 166 is wound around the can supply conveyor 10 from below the can supply conveyor 10 so as to be synchronized with the can 2, and is sleeve-wrapped. Here, the film delivery device 165 is fed to the film 100 from the film roll, and cutting the film 100 to a film 101 having a predetermined length L _F, the film 10
1 is sent to the film packaging device 166. Note that reference numeral 1
00 denotes a long film before cutting, and reference numeral 101 denotes a film after cutting.

The can 2 sleeve-wrapped by the film wrapping device 166 is then block-sealed at the joint of the film 101 and the shrink tunnel 40.
Transported to In the shrink tunnel 170, the film 101 is heated and cooled to perform shrink packaging of the can 2, and the shrink block 8 thus formed is formed.
5 is then conveyed to the handle tape attaching section 190, and the handle tape 50 is attached by the handle machine 50,
As a result, as shown in FIG.
However, both ends are respectively joined to two opposing side surfaces of the shrink block 85, and are mounted so as to straddle the upper part of the shrink block 85. In the attaching process of the handle tape 5, the handle device 50 attaches both ends of the handle tape 5 to predetermined positions of the film 101 of the shrink block 85 while combining vertical movement and horizontal movement.

In carrying out such shrink packaging, the transport speed V ₁ of the can 2 by the can feeding conveyor 10 and the transport speed V ₄ of the film 101 by the film feeding device 165 are not made appropriate. In other words, the required sleeve packaging cannot be performed. Here, the transport speeds V ₁ and V ₄ will be described while describing the process of sleeve packaging of the can 2 by the film packaging device 166 described above.

FIG. 8 shows a conventional shrink packaging apparatus.
Structure of Film Packaging Apparatus 166 and Film Delivery Unit
8A is a diagram showing a state of the film 101 at 80, and FIG.
Is a film feeder 165 (vacuum for film transport)
Feed speed V of conveyor 35) _FourWhen variable control is performed
(B) shows a film feeding device 165 (film transport device).
Feeding speed V of feeding vacuum conveyor 35)_FourThe constant speed
This shows the state in degrees.

As shown in FIG. 8 (a), the film packaging device 166 includes a can transport conveyor 18 arranged in series with a gap 95 downstream of the can supply conveyor 10,
A flight bar 45 that winds the film 101 fed from the film feeding device 165 around the can 2 while rotating and moving on the path indicated by the dotted line. Film 101
Is sucked by the film transport vacuum conveyor 35 of the film feeding device 165 while the film feeding speed V ₄
Then, it is fed between the can supply conveyor 10 and the can transport conveyor 18 and runs up from the gap 95 to the can transport conveyor 18. On the other hand, the can 2 is conveyed from the can feed conveyor 10 to the can conveyor 18 cans feed rate V _1. The transfer of the can 2 to the can transport conveyor 18 is performed when the front end of the film 101 runs on the can transport conveyor 18. By the transfer of the can 2, the film 101 is sandwiched between the can 2 and the can transport conveyor 18 at the front end (the state shown in FIG. 8A), and together with the can 2, the can transport conveyors 18 and 19. moves on the can feed rate V _1. When the rear end of the film 101 is in the gap 95, the flight bar 45 passes through the gap 95, winds up the rear end of the film 101, and transfers it to the front (moving direction) of the can 2. Eventually overtakes can 2 [Fig.
Then, the film 101 is further lowered in front of the can 2 to drop the rear end of the film 101 in front of the can 2 and wound.

When the cans 2 are transported by the can supply conveyor 10 and the can transport conveyors 18 and 19, the grouped cans 2 are transported at intervals of a predetermined pitch P in group units. Pitch P considering transport efficiency
It is better to shorten the pitch P, or if the pitch P is not a certain level, the transfer process of the rear end of the film 101 by the flight bar 45 will be hindered.

Meanwhile, the film 101 is conveyed by the film conveyance Vacuum conveyor 35 is required sufficient length a plurality of cans 2 which are grouped to the sleeve wrapping, the length L _F of the film 101 is transported The pitch P is larger than the pitch P of the can 2. Accordingly, the conveying speed V ₄ of the film 101, it is necessary to set faster than the conveying speed V ₁ of the can 2.

Of course, if the pitch P is sufficiently large, the transport speed V ₄ of the film 101 will be reduced to the transport speed V
_Although it is possible to set the value almost equal to ₁ , the transfer efficiency of the can 2 is reduced, and the processing speed of the shrink wrapping is reduced. If the conveyance of the can 2 can be increased while the pitch P is sufficiently large, a reduction in the processing speed of the shrink wrapping can be avoided.
There is a limit in increasing the transport of the can 2 itself.

That is, while the flat film 101 is sucked over the entire surface of the film conveyor 35 and conveyed in a stable state, the can 2 is simply a can supply conveyor 10 and a can conveyor 18. , 19, and the can 2 is long in the vertical direction and has a high center of gravity.
The posture of the can 2 is unstable and the can 2 easily falls.

Therefore, there is a limit in increasing the transport of the can 2, and by reducing the pitch P to some extent, the transport efficiency of the can 2 is ensured and the processing speed of the shrink wrapping is increased. In order to narrow the pitch P of the can 2 in this manner, the length L _F of the film 101 becomes larger than the pitch P of the can 2 to be transported, and the transport speed V of the film 101
₄ is set to be higher than the transport speed V ₁ of the can 2.

Here, it is practical to stably transport the can 2 while maintaining the number of processes N per unit time of the shrink wrapping apparatus at a certain level (film feeding speed V ₄ /
The value of the can supply speed V ₁ ) is about 1.5 to 2. Thus, since the conveying speed V ₄ of the film 101 is set faster than the conveying speed V ₁ of the can 2, the film 101
It has been considered necessary to the transport speed V ₄ of the variable control.

That is, when the film feeding speed V ₄ is a constant speed, the film transfer section 80
FIG. 8B illustrates the state of 01. Since the front end of the film 101 is pinched between the can 2 and the can transport conveyor 18 that have moved from the can supply conveyor 10 to the can transport conveyor 18 at the can supply speed V ₁ ,
The front end of the film 101 moves on the can conveyor 18 at a speed V ₁ with the can 2. In contrast, Film 1
01 of the rear end is moving at a velocity V ₄ with the film transport Vacuum conveyor 35 for overlying film transport Vacuum conveyor 35. Here, since the film feeding speed V ₄ is faster than the can feeding speed V ₁ , the film 10
1 has sagging.

If this slack is extreme, the film 101
Transfer on the can conveyor 18 may not be performed smoothly and may affect subsequent processes.
The can 2 and can transport conveyor 1 in which the front end of the film 101 has moved from the can supply conveyor 10 to the can transport conveyor 18
At the time when pinched to 8 and, temporarily, is to variably controlled to the film feed speed lower than V _4.

[0020]

However, the conventional shrink wrapping apparatus as described above has the following problems. As shown in FIG. 7B, of the devices constituting the shrink packaging device, the can supply conveyor 10 for supplying the can 2, the film packaging device 166, the shrink tunnel portion 170, and the handle tape attaching portion 190. However, both of them are arranged in series with each other, so that the entire apparatus becomes long, and therefore, there is a problem that a larger installation space is required.

Further, the handle tape 5 is attached to the film 101 forming the shrink block 85 by the handle device 50.
There is a variety of problems because the sticking is performed after the shrink packaging is completed. In other words, in a state where the film 101 is wound around the can 2 to form a three-dimensional shape (shrink block 85), as shown in FIGS. The handle 50 for attaching the handle tape 5 to the film 101 of the shrink block 85 needs to perform an operation combining vertical movement and horizontal movement in order to mount the tape 5 so as to straddle both sides of the handle 85. Therefore, there is a problem that the handle 50 is a complicated device.

Further, since the handle tape 5 is attached to the film 101 whose surface has been deformed by the heat shrinkage after the shrink packaging, there is another problem that the attachment of the handle tape 5 becomes unstable. Further, since the film feed speed V ₄ is variably controlled, the control of the film feeder 165 becomes complicated. The film delivery device 165, for cutting the film 100 traveling in a predetermined length, when the film feed speed V ₄ in the film cutting is changed, the film 100 during cutting, sagging or tension There is also a problem that unevenness occurs and the cutting accuracy of the film 100 is likely to decrease.

The present invention has been made in view of the above-mentioned problems, and enables the handle to be stably and accurately adhered and the cutting accuracy of the shrink film to be improved. It is an object of the present invention to provide a shrink wrapping apparatus and a shrink wrapping method capable of promoting the downsizing of the apparatus and the simplification of the packaging process.

[0024]

According to a first aspect of the present invention, there is provided a shrink packaging apparatus according to the present invention, wherein a shrink film cut into a predetermined length and fed from a film transport path to an article transported along the article transport path. For shrink-wrapping the article by heating and shrinking the shrink film and then shrink-wrapping the article. In a shrink-wrapping apparatus, a handle for attaching a handle tape in advance to a predetermined location of the shrink film prior to the sleeve packaging. A tape sticking device is provided.

According to a second aspect of the present invention, there is provided the shrink wrapping apparatus according to the first aspect, wherein the handle tape attaching device is wound with the handle tape having an adhesive portion at a predetermined span. A feeding roll, a vacuum roll that transports the handle tape while being sucked from the feeding roll while sucking the handle tape, a cutting mechanism that cuts the handle tape that is sucked and transported by the vacuum roll at a predetermined location, With a pressing roll pressed by a vacuum roll, the shrink film is configured to run between the vacuum roll and the pressing roll, and the handle tape that is adsorbed and conveyed by the vacuum roll, The shrink film running between the vacuum roll and the pressing roll is pressed against the pressing roll. It is characterized by being configured to be affixed by.

According to a third aspect of the present invention, there is provided the shrink wrapping apparatus according to the first or second aspect, wherein the conveying speed of the article by the article conveying path, the conveying speed of the shrink film by the film conveying path, and The speed at which the vacuum tape is conveyed by the vacuum roll and the speed at which the handle tape is transported at a constant speed while maintaining a predetermined speed ratio.

According to a fourth aspect of the present invention, the shrink wrapping method according to the present invention winds a shrink film cut to a predetermined length and sent from a film conveyance path around an article conveyed in the article conveyance path to wrap the sleeve. A shrink wrapping method for shrink wrapping the article by heat shrinking the shrink film, characterized in that a handle tape is attached to a predetermined portion of the shrink film before the sleeve wrapping.

According to a fifth aspect of the present invention, in the shrink packaging method according to the fourth aspect, the attaching of the handle tape is performed by sucking and transporting the handle tape by a vacuum roll. Then, the handle tape is cut to a predetermined length, and then the handle tape of a predetermined length is transferred between the vacuum roll and the pressing roll pressed by the vacuum roll, and travels between the vacuum roll and the pressing roll pressed by the vacuum roll. It is characterized in that it is configured to be attached to the shrink film by the pressing force of the pressing roll.

According to a sixth aspect of the present invention, in the shrink packaging method according to the fourth or fifth aspect, the conveying speed of the article by the article conveying path, the conveying speed of the shrink film by the film conveying path, and The speed at which the vacuum tape is conveyed by the vacuum roll and the speed at which the handle tape is transported at a constant speed while maintaining a predetermined speed ratio.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. In addition, as each embodiment, the case where the present shrink packaging apparatus and the present shrink packaging method are applied to the packaging of beverage cans will be described. First, a first embodiment will be described. FIGS. 1 to 4 show a shrink wrapping apparatus as a first embodiment of the present invention, and FIG. 1 is a side view of a line schematically showing a configuration of the shrink wrapping apparatus. FIG. 2 is a diagram showing a schematic configuration of the shrink wrapping apparatus, wherein (a) is a schematic side view of the shrink wrapping apparatus, and (b) is a schematic perspective view for explaining a shrink wrapping process; 3A and 3B are views showing a configuration of a tape attaching device for a handle, in which FIG. 3A is a side view of the device and is partially broken, and FIG. 3B is a developed view of the surface of the vacuum roll. 4A and 4B are views showing the configuration of the handle tape, wherein FIG. 4A is a plan view, and FIG. 4B is a cross-sectional view taken along line AA of FIG.

First, a schematic configuration and steps of a shrink wrapping apparatus and a shrink wrapping method according to the present embodiment will be described. As shown in FIGS. 2A and 2B, the shrink wrapping apparatus mainly includes a can supply conveyor (article transport path) 10 for supplying the can 2 and a tape attaching device 9 for a handle.
0, a film packaging unit 160 including a film feeding device 165 and a film packaging device (sleeve packaging device) 166
And a shrink tunnel section 170 having a shrink tunnel, which are arranged in order on the line.

In shrink wrapping, first, the can 2
Are fed to the film packaging apparatus 166 by the can supply conveyor 10 in a group state (can group) 8 in which a large number is gathered and arranged. At this time, on the can supply conveyor 10, the can groups 8 are grouped by a predetermined number before being sent to the film packaging device 166, and the groups are arranged in a predetermined arrangement.

In this manner, the film packaging device 166
Group-shaped cans 2 fed to the film feeder 1
The film 101 fed from below the can-supplying conveyor 10 is wound around and wrapped in a sleeve. The can 2 sleeve-wrapped by the film packaging device 166
Is sent to the shrink tunnel 40. by the way,
In the case of the present shrink packaging apparatus, the film packaging apparatus 166
Is not only cut to a predetermined length, but also has a state in which the handle tape 5 is already stuck to a predetermined position by the handle tape sticking device 90.

Here, the handle tape sticking device 90 will be described.
Is disposed below the film feeder 165 and cuts the handle tape 51 fed from the feeding roll 55 into handle tapes 5 of a predetermined length.
Is attached to a predetermined position of the film 100 before cutting while traveling in the film feeding device 165, that is, a position extending from the center of the upper surface to both right and left sides of the shrink block 85 after the sleeve 2 of the can 2 is completed. . Reference numeral 51 denotes a long handle tape before cutting, and reference numeral 5 denotes a handle tape after cutting.

The film feeding device 165 cuts the film 100 having the handle tape 5 attached at a predetermined position by the handle tape attaching device 90 into a film 101 having a predetermined length. Then, the film 101 is fed to the film packaging device 166. As described above, in the present shrink wrapping apparatus, cutting and affixing of the handle tape, which was performed downstream of the shrink tunnel section 170 in the conventional shrink wrapping apparatus (see FIG. 7), are performed by the film packaging apparatus 166. It is configured to do this before delivery.

Here, with reference to FIG. 1 to FIG. 4, the characteristic part of the shrink wrapping apparatus of the present embodiment according to the shrink wrapping method will be described in more detail. As shown in FIG. 1, in the shrink packaging apparatus of the present embodiment, when the can 2 is sleeve-wrapped, the can supply conveyor 10 and
Tape attaching device 90 for handle and film feeding device 1
4 and a film packaging device 166 are involved.

As shown in FIG. 1, the handle tape affixing device 90 is disposed below the film feeding device 165, and the handle tape feeding roll 55 (see FIG. 2) and the support roll 16 are provided. , A holding roll 13, a driving roll 14, a handle tape cutting mechanism (cutting mechanism) 200, a vacuum roll 20, and a pressing roll 25.

A mounting tape 51 provided with a predetermined length of adhesive portion intermittently at a predetermined span is wound around the feeding roll 55, and the mounting tape 51 fed from the feeding roll 55 is supported. Guided by roll 16,
The press roll 13 and the drive roll 14 are driven to drive the vacuum roll 20. Also,
The pressing roll 13 and the driving roll 14 are provided to face each other, and the driving roll 14 is rotated by a driving motor (not shown), and the pressing roll 13 is in pressure contact with the driving roll 14. The handle tape 51 is sent to the vacuum roll 20 while being sandwiched between the press roll 13 and the drive roll 14.

The mounting tape cutting mechanism 200 separates the holding roll 13 and the driving roll 14 from the vacuum roll 20.
Is provided immediately before the vacuum roll 20 on the mounting tape running path leading to the mounting tape. This mounting tape cutting mechanism 200
The rotary cutter 112 includes a rotary cutter 112 supported by a rotary blade support roll 110 and a fixed cutter 111. The rotary cutter 112 and the fixed cutter 111 allow the mounting tape 51 to be attracted to and conveyed by the vacuum roll 20. It is designed to be cut to a predetermined length.

The pressing roll 25 is mounted so as to be pressed against the vacuum roll 20. Between the vacuum roll 20 and the pressing roll 25, a film 100 and a mounting tape cutting mechanism 200 are used. The mounting tape 5 cut to a predetermined length passes therethrough. During this passage, the mounting tape 5 and the film 100 are pressed against each other, and the mounting tape 5 is adhered to the film 100 at the adhesive portion.

The handle tape attaching device 90
Will be described later. The film feeding device 165 includes a film roll (not shown) around which the film 100 is wound, a pass line holding roll 38 that allows the film 100 to travel along a predetermined pass line, and a handle tape attaching device 90 for holding the film at a predetermined position. A film cutting mechanism 167 that cuts the long film 100 to which the tape 5 has been attached into a film 101 having a predetermined length;
While sucking the film 101, the film packaging apparatus 1
Vacuum conveyor 35 for transporting film to 66
Consists of

Here, the film conveyor vacuum conveyor 35 includes a vacuum conveyor driving roll 29 driven by a motor (not shown) and rotates, and a vacuum conveyor roll 36 disposed diagonally above and above the vacuum conveyor driving roll 29. And a vacuum belt 35A wound around a vacuum conveyor driving roll 29 and a vacuum conveyor roll 36.

The vacuum belt 35A is driven and rotated by the vacuum conveyor drive roll 29. At the downstream end of the pass line, the suction force of the vacuum conveyor roll 36 is applied to suck the film 101 onto the pass line.
While holding the front end of the film 101 (film front end portion) 102 V ₄ (the transport speed of the shrink film) given film feeding speed, feeding the film wrapping apparatus 166.

The film cutting mechanism 167 is provided between the pass line holding roll 38 and the film transport vacuum conveyor 35, and is provided with the film feed roll 26 and the film feed drive roll 28 provided opposite to each other.
, A film holding roll 27 provided opposite to the vacuum conveyor driving roll 29, and a film feed roll 26 and a film holding roll 2 having a cutting blade 99.
7 and a cutting roll 31 disposed between them. Here, the film feed driving roll 28 and the cutting roll 31 are each driven to rotate by a motor (not shown).

The film feed roll 26 is pressed against the film feed drive roll 28, the film press roll 27 is pressed against the vacuum conveyor drive roll 29, and the pass line of the film 100 is A crimping point with the feed drive roll 28;
It is formed on a straight line connecting the film press roll 27 and the pressure contact point of the vacuum conveyor drive roll 29. The cutting blade 99 of the cutting roll 31 is disposed at a position where the cutting blade 99 can sufficiently penetrate such a pass line during rotation.

The film feed drive roll 28 and the vacuum conveyor drive roll 29 can be rotationally driven at different speeds by separate drive motors.
By rotating the film 100 slightly faster than 8, it is possible to generate a sufficient tension on the film 100 between the film feed drive roll 28 and the vacuum conveyor drive roll 29 where the film 100 is cut. In the present apparatus, tension is applied to the film 100 to be cut in this manner,
This ensures that the cutting blade 99 can cut the film 100 reliably.

Then, the film packaging device 166 rotationally moves the can transport conveyor 18 arranged in series with a gap 95 downstream of the can supply conveyor 10 and the orbit 46 shown by a dashed line in FIG. And a flight bar 45 for winding the film 101 fed from the film feeding device 165 around the can 2. The cans are conveyed to the film packaging device 166 from the can supply conveyor 10 at a can supply speed (conveyance speed of articles) V ₁ , and synchronized with the cans 2 from the film supply device 165 to the film supply speed (conveyance of shrink film). speed) film 101 V ₄ is transported through the film delivery section 80. In other words, at the same time as the film front end (tip) 102 of the film 101 from the film feeder 165 moves onto the can conveyor 18,
This on the film front end 102 can 2 from the can feed conveyor 10 are adapted to possess, then, the film 101, while being held in the can 2 and the can conveyor 18, the can conveyor cans feed rate V ₁ 18 above.

The flight bar 45 passes through the gap 95 while the film 101 is being transferred from the film feeder 165 to the can conveyor 18, that is, when the rear end portion 103 of the film is located in the gap 95. Then, the film rear end 103 is wound up, and moves forward of the can 2 (moving direction) to pass the can 2, and then descends in front of the can 2 to move the film rear end 103 to the can 2.
Is wound forward (see the state shown in FIG. 1).

Downstream of the can conveyor 18, the can conveyors 19 are arranged in series with a gap 96 therebetween, which secures the orbit 46 of the flight bar 45 and the flight bar 45. End 103 which is wound around the can 2 and hangs down on the can conveyor 18
(The state shown in FIG. 1) is dropped into the gap 96, and then, in this state, the can 2 moves onto the can transport conveyor 19, and the film rear end 103 dropped into the gap 96 is placed under the can. The wrapping is performed to complete the sleeve packaging of the can 2 in the state shown in FIG.

Here, the structure of the above-described handle tape attaching device 90 will be described in more detail with reference to FIGS. As shown in FIG. 3A, the drive roll 14 is driven by a motor (not shown), and the handle tape 51 wound around the feeding roll 55 is cooperated with the holding roll 13 to hold the handle. to use a tape cutting mechanism 200 and the vacuum roll 20 so that the feed at a predetermined conveyance speed V _3.

The vacuum roll 20 is driven to rotate by a motor (not shown).
As shown in FIGS. 3 (a) and 3 (b), a suction hole 21 is provided at the center in the width direction over the entire circumference, and the inside of the roll communicates with the suction hole 21. A vacuum section (negative pressure space) 22 is provided, and the vacuum section 22 is connected to a vacuum pump or the like (not shown) and is depressurized from the outside to be in a negative pressure state. That is, the negative pressure q is supplied to the suction hole 21 via the vacuum section 22. With such a structure, the vacuum roll 20 can convey the handle tape 51 to the pressing roll 25 side while adsorbing on the outer periphery thereof.

The handle tape cutting mechanism 200 is disposed below the vacuum roll 20 and has a handle tape 5.
A guide plate 61 disposed close to the vacuum roll 20 so as to be along the transport path to the first vacuum roll 20;
62, 63a and 63b, and a rotary cutter 112 and a fixed cutter 111 disposed to face each other between the guide plates 61 and 62 and the guide plates 63a and 63b.

The rotary cutter 112 is supported by a rotary blade support roll 110 driven by a motor (not shown), and the fixed cutter 111 is fixed to the fixed blade support 64. The handle tape 51 is transported between the guide plates 61 and 62 and between the guide plates 63a and 63b. In particular, the guide plates 61 and 63a The handle tape 51 is guided such that the handle tape 51 is not sucked by the vacuum roll 20 before the position.

Here, a motor (not shown) is connected to the rotary blade support roll 110. When the motor drives the rotary blade support roll 110 to rotate, the rotary cutter 112 rotates together with the rotary blade support roll 110. The rotary cutter 112 and the fixed cutter 111 cooperate to cut the handle tape 51. The guide plate 63b also indicates that the leading end of the handle tape 51 has passed a predetermined length _LT 'from the mating surface of the fixed cutter 111 and the rotary cutter 112 on the pass line of the handle tape 51. A sensor (predetermined length detection sensor) 70 for detecting is provided.

Then, the handle tape 51 is attached to the guide plate 6.
When the tape 51 is conveyed while being sucked on the vacuum roll 20 through the gap between the rolls 3a and 63b, and the tip of the handle tape 51 reaches the predetermined length detection sensor 70,
The handle tape 51 and fed by a predetermined length L _T 'min, the handle tape detection sensor 70 detects that the leading end of the handle tape 51 passes. Then, the rotary blade supporting roll 110 receives the detection signal is driven to rotate, with a rotating cutter 112 and the stationary cutter 111, so as to cut the handle tape 51 to the handle tape 5 of the predetermined length L _T -ing

[0056] The predetermined length L _T of the length detection sensor 70 when the handle tape 51 to detect the leading end of the handle tape 51 ', than the predetermined length L _T of the handle tape 5 after cutting It is set short. This is because the predetermined length detection sensor 70 detects the tip of the handle tape 51 and then the rotating cutter 112 and the fixed cutter 111 use the handle tape 51.
This takes into account the response delay until disconnection.

The cut handle tape 5 is sent to a pressing roll 25 disposed above the vacuum roll 20 while being attracted to the vacuum roll 20, and is pressed by the pressing roll 25 to generate a vacuum roll 2.
0, the film 10 running between the pressing rolls 25
0. Here, the handle tape 51 will be described. As shown in FIG. 4A, an adhesive portion 56 and a non-adhesive portion 57 have a predetermined pitch (a predetermined length of the handle tape 51) on one surface of the handle tape 51. L _T ). The remaining surface of the handle tape 51 is a non-adhesive surface 58 as shown in FIG. That is, only one side has the adhesive portion 56.

The handle tape 51 has a non-adhesive surface 5
8 is fed so as to be a surface to be attracted to the vacuum roll 20, and the handle tape 51 is attached to the vacuum roll 2.
It is set so that it does not stick to 0. Also,
The cutting of the handle tape 51 is set so as to be performed at an intermediate portion in the longitudinal direction of the adhesive portion 56, and the adhesive tape 56 is attached to both ends of the handle tape 5 after being cut to a predetermined length.
Is coming. As a result, the handle tape 5
Is attached to the film 100, the handle tape 5
Adhesive portions 56 at both ends are attached to the middle non-adhesive portion 5
7 can function as a handle.

Further, the guide plates 62 and 63a and the surface of the holding roll 13 which are in contact with the adhesive portion 56 of the handle tape 51 are provided with a sticking prevention measure such as Teflon treatment. Incidentally, as described as a conventional technique, since the conveying speed V ₁ of the can 2 is limited, to increase the conveying efficiency of the can 2 by suppressing the conveying pitch P of the can 2, the conveying speed of the film 101 V _4, must be set to a speed higher than the conveying speed V ₁ of the can 2, as a result, slack occurs in the film 101 at the confluence between the film 101 and the can 2. Since the sagging of the film 101 may adversely affect the subsequent packaging process, conventionally, this was prevented by temporarily lowering the transport speed of the film 101 when the film 101 and the can 2 merge. .

However, as a result of trial and error, it was found that the above-described sagging of the film 101 would not adversely affect the subsequent packaging process unless it was excessive. That is, the transport speed V ₄ of the film 101 is equal to the transport speed V ₄ of the can 2.
If it is not excessively large with respect to _1, for example, film 101
It has been found that even if sagging occurs, there is no risk of adversely affecting the subsequent packaging process. That is, Osaere the ratio of the conveying speed V ₁ of the transport speed V ₄ and the can 2 film 101 within a certain limit, such as to temporarily decrease during the conveying speed of the film 101 joins the film 101 and the can 2 It turned out that no variable control was necessary.

Therefore, in the shrink wrapping apparatus of this embodiment, by adjusting the ratio between the can supply speed V ₁ and the flight bar speed V ₂ , this slack is suppressed to such an extent that the process is not affected. This makes it possible to keep the flight speed V ₂ and the transport speed V ₃ of the handle tape constant, including the can supply speed V ₁ and the film feed speed V ₄ . For example, as shown in FIG. 6A, in shrink packaging of a can having a can diameter of about 66 mm and a can height of about 168 mm, the can supply speed V ₁ , the flight bar speed V ₂ , and the transport speed V _{3 of the} handle tape. , the speed ratio of the film feeding speed _{V 4, 70: 105: 45} : by setting the order of 100, can be a variable control of speed and unnecessary. Note that this speed ratio is an example, and the can supply speed V
₁ and the film the ratio between the feed speed V ₄ is as long as it can suppressed within certain limit the sagging of the film 101 as described above, other speeds V _2, V _3, these speeds V _1, V _Four
And the size according to other setting conditions.

Since the shrink wrapping apparatus of the present embodiment is configured as described above, sleeve wrapping of the can 2 is performed as follows. First, the cutting step of the handle tape will be described with reference to FIGS. The handle tape 51 wound around the handle tape pay-out roll 55 (see FIG. 2) forms a predetermined pass line by the support roll 16 while holding the holding roll 13 and the driving roll 1.
4 while being held by the drive roll 14,
Guide plates 61,62,63A, while being guided by the 63 b, is conveyed to the handle tape cutting mechanism 200 and the vacuum roll 20 at a predetermined conveyance speed V _3.

When the handle tape 51 conveyed to the vacuum roll 20 is sent out onto the vacuum roll 20 to a predetermined length L _T ′ while being sucked by the suction holes 21 provided on the outer peripheral surface of the vacuum roll 20. , Tape detection sensor 7 for handle provided on guide plate 63b
0 is detected. In response to the detection signal, the rotary blade support roll 110 is driven to rotate, and the rotary cutter 112 provided on the rotary blade support roll 110 and the rotary cutter 112 fixed on the fixed blade support base 64 cooperate. Te cutting the handle tape 51 to the handle tape 5 having a predetermined length L _T.

The cut handle tape 5 rotates together with the vacuum roll 20 while being attracted to the vacuum roll 20, and is sent between the vacuum roll 20 and the pressing roll 25. The pressing force of the pressing roll 25 causes the vacuum to be applied. Roll 20, pressing roll 25
It is pasted on the uncut film 100 running between the films.

Here, the handle tape 51 is fed into the vacuum roll 20 at the transport speed V ₃ as described above, and the film feed device 165 is added to the vacuum roll 20 in addition to the handle tape 51. Feeding speed V ₄
, The film 100 running is also fed. For this reason, the vacuum roll 20 is connected to the film feeding device 165.
It is rotated at a film feeding speed V ₄ in accordance with the. Since the speed (film feeding speed) V _{4 of the} vacuum roll 20 is faster than the transport speed V ₃ of the handle tape 51, the handle tape 51 before cutting is applied to the vacuum roll 2.
This means that you are slipping above zero.

The handle tape 51 is a vacuum roll 20.
Since it is only sucked at a negative pressure, there is no problem even if such a slip occurs. Note that the ratio of the transport speed V ₃ of the handle tape to the film feeding speed V ₄ is the film 10
It depends on the ratio of the first predetermined length L _F and a predetermined length L _T of the handle tape 5. While the film 101 is sleeve-wrapped around the can 2, the handle tape 5 is attached to the can 2 so as to grip the upper surface of the can 2, and, of course, the predetermined length L _{F of the} film 101. it is longer than a predetermined length L _T of the handle tape 5. Thus, more of the film feeding speed V ₄ it is becoming faster than the conveyance speed V ₃ of the tape handle.

The film 100 to which the handle tape 5 has been attached is sent to the film cutting mechanism 167 of the film feeder 166. The subsequent operation will be described with reference to FIG. The film 100 supplied via the pass line holding roll 38 is attached to the handle tape 5 by the handle tape attaching device 90 and is sent to the film cutting mechanism 167. Film conveyor vacuum conveyor 35
Sent to

When the film 100 is conveyed by a predetermined length on the film transport vacuum conveyor 35 while being sucked, the cutting roll 31 starts rotating, and the cutting blade 99 provided by the cutting roll 31 holds the film 100. The film 101 is cut into a predetermined length. Thus, the film 101 is cut to a predetermined length while being adsorbed by the film transport Vacuum conveyor 35 is transported on the line with the film feeding speed V _4, the can feed conveyor 1
It is supplied to the upper surface of the can transport conveyor 18 through a gap 95 between the can transport conveyor 18 and the can transport conveyor 18. At this time, the cans 2 grouped from the can supply conveyor 10 are also transferred to the can transfer conveyor 18 at the can supply speed V ₁ and the can transfer pitch P in synchronization with the film front end 102 riding on the can transport conveyor 18. Get on the 101. Therefore, the film front end 102 is connected to the can 2 and the can transport conveyor 1
The film 101 is transported together with the can 2 by the can transport conveyor 18 while being pinched between the film 8 and the film 101, and is eventually peeled off from the film transport vacuum conveyor 35.

This film 101 can transport conveyor 18
When moving to the can, the film front end 102 moves at a can supply speed V ₁ together with the can 2 because the film front end 102 moves while being sandwiched between the can 2 and the can transport conveyor 18, whereas the film rear end 103 is still moving. Film conveyor vacuum conveyor 35
Moving the film feed speed V ₄ because above. As described above, since in the present embodiment, the film feeding speed V ₄ constant speed, as shown in FIG. 8 (b), bending the film 101 occurs in a film transfer unit 80.
However, in the shrink device of the present embodiment, this deflection is controlled to be within a certain limit by optimizing the can feed rate V ₁ and the flight bar velocity V _2, it does not affect the subsequent steps .

Thereafter, the flight bar 45 moving on the track 46 passes through the gap 95 between the conveyors at the flight bar speed V ₂ , and starts to move onto the can transport conveyor 18 from the intermediate portion of the film 101 moving on the gap 95. The film rear end 103 is wound up. Then, the flight bar 45 moves in the moving direction of the can 2 at a speed higher than the moving speed of the can 2 above the can conveying conveyor 18 while hooking the film 101, and as shown in FIG. The film 101 is guided so that the rear end portion 103 of the film that is not sandwiched between the conveyors 18 falls forward (in the moving direction) of the can 2. When the can 2 reaches the end of the can transport conveyor 18 in the state shown in this figure, the film rear end portion 103 hanging on the can transport conveyor 18 falls down the gap 96 between the conveyors. In this manner, when the can 2 moves onto the can transport conveyor 18 in a state where the rear end portion 103 of the film falls down in the gap 96, the rear end portion 103 of the film is caught under the can 2 as shown in FIG. Then, the sleeve packaging is completed.

Thereafter, the sleeve-wrapped can 2 is sent to a shrink tunnel 40 and shrink-wrapped. Therefore, according to the shrink packaging apparatus and the shrink packaging method of the present embodiment, the following effects can be obtained.
In other words, the handle tape attaching device 90 for attaching the handle tape 5 to the film 100 is provided so as to be attached to the film feeding device 165 on the upstream side of the film packaging device 166 in parallel with the can supply conveyor 10. There are the following advantages.

Since the handle tape attaching device 90 is provided on the side of the film feeding device 165 parallel to the can conveying line including the can feeding conveyor 10, the can conveying conveyors 18, 19, etc. Tape application device 9 for handle
Compared with the case where 0 is provided, the can transport line can be made shorter, which can contribute to downsizing of the entire apparatus. In particular, since the film feeding device 165 and the handle tape applying device 90 are configured to operate in cooperation with each other, the film feeding device 165 and the handle tape applying device 90 are connected in series independently of each other. There is an advantage that the device can be made more compact than the case where it is disposed.

Before the tape is fed to the shrink tunnel 40, that is, the handle tape 5 is stuck to the shrink film 100 without deformation before heating, the handle tape 5 is stably and reliably stuck to the shrink film 100. There is an advantage that can be. Further, since the handle tape 5 is attached to the state before the sleeve 2 of the can 2 is wrapped, that is, to the flat shrink film 100, the operation of the handle tape attaching device 90 required for such attachment is simplified. In other words, there is an advantage that the handle tape attaching device 90 can be made simple and easy to operate.

Further, the can supply speed V₁， Flight bar speed
Degree V_Two, Transport speed V of handle tape _Three, Film feeding speed
Degree V_FourAre both constant speeds, so
There are advantages. Such can supply speed V₁， Flight bar speed
V_Two, Transport speed V of handle tape_Three, Film feeding speed
V_FourThe operation is easy because no control is required.

[0075] The film delivery device 165, while feeding the film 100 with a film feeding speed V _4, although cutting the film 100 in this feed, and the film feeding speed V ₄ is constant Since the film feeding device 165 can cut the film 100 in a stable state, there is also an advantage that the cutting accuracy of the film 100 is improved.

Next, a second embodiment will be described. FIG. 5 is a schematic perspective view showing a configuration of a shrink wrapping device as a second embodiment of the present invention. The outline of the configuration and steps of the shrink wrapping apparatus according to the present embodiment will be described below with reference to FIG. 5, but since the details are the same as those of the shrink wrapping apparatus of the first embodiment, only the characteristic points will be described.

The shrink wrapping apparatus according to the present embodiment is for simultaneously performing three sets of shrink wraps in parallel.
Mainly, a can supply conveyor 10 for supplying the can 2, a film packaging unit 160 including a tape application device for handle 90, a film supply device 165, and a film packaging device 166,
And a shrink tunnel section 170 having a shrink tunnel 40, which are arranged in order on the line.

Here, the handle tape attaching device 90 is disposed below the can supply conveyor 10 so as to overlap the film feeding device 165, and the handle tapes 51a and 51 are provided.
b, 51c wound in parallel,
Rolls 55 of two (two of the three are not shown) of handle tapes, and handle tapes 51a, 51
b, 51c are respectively provided with handle tapes 5a, 5
b, 5c and cut into films 100a, 100b, 10
It is provided with a cutting mechanism (not shown), a vacuum roll 20, and a pressing roll 25 for sticking to 0c.

Here, the vacuum roll 20 and the pressing roll 25 are composed of three handle tapes 51a, 51b and 51.
c is given a sufficient width so that one c can be processed simultaneously in parallel. The cutting mechanism, which is configured similarly to the handle tape cutting mechanism 200 of the first embodiment, is installed corresponding to each of the handle tapes 51a, 51b, 51c.

The film feeding device 165 is disposed below the can supply conveyor 10 and is a film feeding roll 120a wound with a wide film 105, and a slitter for cutting the film 105 into three equal parts in the width direction. 87,
Film 100a, 100 cut into slitter 87
A plurality of (two in this case) pass line holding rolls 38 for holding the pass lines of the b and 100c to the handle tape application device 90, and a film cutting mechanism 167 (not shown)
(See FIG. 1) and a film transport vacuum conveyor 35 (see FIG. 1), also not shown.

Here, the film cutting mechanism 167 cuts the films 100a, 100b and 100c into films 101a, 101b and 101c of a predetermined length, and may be provided separately for each of the films 100a, 100b and 100c. Alternatively, they may be provided integrally. The vacuum conveyor 35 for transporting the film
1a, 101b, and 101c while sucking and feeding the film to the film packaging device 166.
01a, 101b, and 101c may be provided separately.
Alternatively, they may be provided integrally.

The feeding roll 120b is a spare feeding roll.
Even if the film 105 wound around a runs out, the shrink wrapping apparatus can be continuously operated by switching to the feeding roll 120b. Also, the slitter 87 has two cutting blades, and the film 105
At the position where the film is divided into three equal parts in the width direction.
It is fixed so as to protrude from the transport line 05. That is, the film 105 is cut into three equal parts by using the feeding of the film 105.

The can supply conveyor 10, the can transport conveyors 18, 19 and the shrink tunnel 40 which form the can transport path have a sufficient width so that three sets of cans 2a, 2b, 2c can be processed side by side. I'm making it. Since the shrink wrapping apparatus of the present embodiment is configured as described above, the shrink wrapping of the can 2 is performed as follows.

First, the film feeding device 165 will be described. The wide film 105 fed from the film feeding roll 120a is fed to the film 100a by the slitter 87 fixed on the film transport line.
100b and 100c, which are divided into three equal parts, run between the vacuum roll 20 and the pressing roll 25, and
a, 5b and 5c can be attached. Then, film 1
00a, 100b, and 100c are cut to a predetermined length by a film cutting mechanism 167 (not shown in FIG. 5).
Are sent to the film packaging device 166 by a film transport vacuum conveyor 35 not shown in FIG.

In the handle tape affixing device 90, the long handle tapes 51a, 51b, and 51c fed from the three handle tape feeding rolls 55 are used.
Each handle tape 5a, 5 which is cut to a predetermined length by a handle tape cutting mechanism 200 not shown in FIG.
b and 5c are a vacuum roll 20 and a pressing roll 2
5, and is attached to the films 100a, 100b, 100c running on the film feeding device 165.

On the other hand, the cans to be packaged are in a group state (can group) 8 in which many
To the film packaging device 166. The can group 8 is placed on the film supply device 10 on the can supply conveyor 10.
By the time it is fed to 66, it is sorted into three sets of cans 2a, 2b, 2c by a grouping device (not shown). Here, the cans 2a, 2b, and 2c are divided into pieces (here, six pieces) per shrink package, and are arranged in a predetermined manner (here, two pieces in the line direction and three pieces in the horizontal direction).
It is arranged in.

In this way, the film packaging device 166
The cans 2a, 2b, 2c fed to the cans 2a, 2b, 2c are respectively arranged from below the can supply conveyor 10.
The films 101a, 101b, 1 having the handle tapes 5a, 5b, 5c, which are fed to the film packaging device 166 in synchronization with the respective positions c, are attached to predetermined positions, respectively.
01c is wound and sleeve-wrapped, and is fed to the shrink tunnel 40 to complete the shrink wrapping.

Therefore, according to the shrink wrapping apparatus and the shrink wrapping method of the present embodiment, in addition to the effects of the shrink wrapping apparatus and the shrink wrapping method of the first embodiment, three shrink wraps can be simultaneously performed.
The effect is that the processing capacity can be greatly improved. In addition,
In the second embodiment, three shrink wraps are performed at the same time, but two or four or more shrink wraps may be performed at the same time.

The shrink wrapping apparatus and the shrink wrapping method of the present invention are not limited to the above-described embodiments, and can be implemented in various modifications. It may be a can other than a can, or may be something other than a can (eg, a pack).

[0090]

As described above in detail, according to the shrink wrapping apparatus of the present invention according to the first aspect and the shrink wrapping method of the fourth aspect of the present invention, the shrink film without deformation before heat shrinkage of the shrink film. Since the handle tape is attached to the film, there is an advantage that the handle tape can be stably attached to the shrink film.

Further, since the handle tape is pasted on the article before the sleeve packaging, that is, the flat shrink film, the handle tape pasting device uses the handle tape pasting device to paste the handle tape onto the shrink film. There is an advantage that the necessary operation is simple, the configuration of the handle tape attaching device can be simplified, and the operation can be easily performed.

According to the shrink wrapping device of the present invention described in claim 2 and the shrink wrapping method of the present invention described in claim 5, a tape attaching device for a handle can be used to transport a shrink film which is generally provided in parallel with a can transport yarn. Since it is provided in the system, there is an advantage that it contributes to downsizing of the device. In particular, since the transfer of the shrink film and the attachment of the handle tape to the shrink film by the handle tape attaching device are performed in cooperation with each other, the transfer path of the shrink film and the handle tape attaching device overlap vertically. Thus, there is an advantage that the shrink wrapping device can be made more compact than when the transfer path of the shrink film and the tape attaching device for the handle are arranged in series with each other.

According to the shrink wrapping device of the present invention described in claim 3 and the shrink wrapping method of the present invention described in claim 6, the conveying speed of the article by the article conveying path, the conveying speed of the shrink film, and the vacuum roll are used. The transport speed of the handle tape is a constant-speed running and does not require variable control, so that there is an advantage that these transport systems can be made simple and easy to operate.

Also, since the cutting of the shrink film is performed in a stable state while the shrink film is traveling at a constant speed, there is an advantage that the cutting accuracy of the shrink film can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a line schematically showing a configuration of a shrink wrapping device according to a first embodiment of the present invention.

FIG. 2 is a view showing a schematic configuration of a shrink wrapping apparatus according to a first embodiment of the present invention, wherein (a) is a schematic side view of the shrink wrapping apparatus, and (b) explains a shrink wrapping process. It is a typical perspective view.

3A and 3B are diagrams showing a configuration of a handle tape attaching device according to the first embodiment of the present invention, wherein FIG. 3A is a side view partially broken away, and FIG. 3B is a surface of a vacuum roll; FIG.

4A and 4B are diagrams showing a configuration of the handle tape according to the first embodiment of the present invention, wherein FIG. 4A is a plan view and FIG. 4B is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a schematic perspective view showing a configuration of a shrink wrapping device according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing an example of a general beverage can and shrink packaging of the beverage can. FIG. 6 (a) shows an example of schematic dimensions of a beverage can, and FIG. (C) shows an example in which six cans are collectively shrink-wrapped with a shrink film.

7A and 7B are diagrams showing a schematic configuration of a conventional shrink wrapping apparatus, wherein FIG. 7A is a schematic side view showing an arrangement of each part of the shrink wrapping apparatus on a line, and FIG. It is a typical perspective view.

8A and 8B are diagrams illustrating a structure of a film packaging apparatus according to a conventional shrink packaging apparatus and a state of a shrink film in a film transfer unit, and FIG. 8A illustrates a state in which the feeding speed of the film feeding apparatus is variably controlled. 4B shows a state when the feeding speed of the film feeding device is set to a constant speed.

[Explanation of symbols]

2, 2a, 2b, 2c Can (article) 5, 5a, 5b, 5c Handle tape (handle tape after cutting) 8 Can group 10 Can supply conveyor (article transport path) 13 Press roll 14 Drive roll 16 Support roll 18, 19 Can transport conveyor 20 Vacuum roll 21 Suction hole 22 Vacuum part 25 Pressing roll 26 Film feed roll 27 Film press roll 28 Film feed drive roll 29 Vacuum conveyor drive roll 31 Cutting roll 35 Film transport vacuum conveyor (film transport path) 36 Vacuum conveyor roll 35A Vacuum belt 38 Pass line holding roll 40 Shrink tunnel 45 Flight bar 46 Flight bar track 50 Handle machine 51, 51a, 51b, 51c Handle tape (handle for cutting before cutting) 55) Feeding-out roll of handle tape 56 Adhesive portion 57 Non-adhesive portion 58 Non-adhesive surface 61, 62, 63a, 63b Guide plate 64 Fixed blade support base 70 Predetermined length detection sensor 80 Film transfer portion 85 Shrink block 87 Slitter 90 Handle Tape attaching device 95, 96 Gap 99 Cutting blade 100, 100a, 100b, 100c Shrink film (shrink film before cutting) 101, 101a, 101b, 101c Shrink film (shrink film after cutting) 102 Shrink film front end 103 Shrink film trailing end 105 Wide shrink film 110 Rotary blade support roll 111 Fixed cutter 112 Rotary cutter 120a, 120b Shrink film feeding roll 160 Film wrapping Part 165 film feeder 166 film packaging device 167 film cutting mechanism 170 shrink tunnel portion 190 tape putting section 200 handle tape cutting mechanism for the handle L _F shrink predetermined length L _T a predetermined length of the handle tape L _T of the film ′ Predetermined length of delivery of handle tape to vacuum roll N Number of processes per unit time of shrink wrapping device P Can transport pitch V ₁ Can supply speed (article transport speed) V ₂ Flight bar speed V ₃ Handle tape Transport speed V ₄ Film feed speed (shrink film transport speed) q Negative pressure

Claims (6)

[Claims] An article conveyed along an article conveying path is wound around a shrink film cut to a predetermined length and sent from a film conveying path and sleeve-wrapped, and then the shrink film is heated and shrunk to shrink the article. What is claimed is: 1. A shrink wrapping device for packaging, comprising: a handle tape attaching device for attaching a handle tape to a predetermined portion of the shrink film before the sleeve packaging. 2. The delivery tape applying device according to claim 1, wherein the delivery tape is provided with an adhesive portion at a predetermined span, and the delivery tape is wound around the delivery tape. A vacuum roll, a cutting mechanism for cutting the handle tape sucked and conveyed by the vacuum roll at a predetermined position, and a pressing roll pressed by the vacuum roll, wherein the shrink film is formed by the vacuum roll. And the pressing tape are configured to travel between the pressing roll, and the handle tape that is attracted and conveyed by the vacuum roll is attached to the shrink film that travels between the vacuum roll and the pressing roll. 2. The apparatus according to claim 1, wherein the sheet is attached by a pressing force of a pressing roll. The placement of shrink packaging equipment. 3. A predetermined speed ratio between the conveying speed of the article by the article conveying path, the conveying speed of the shrink film by the film conveying path, and the conveying speed of the handle tape by the vacuum roll. The shrink packaging device according to claim 1, wherein the shrink packaging device is configured to travel at a constant speed while holding. 4. A shrink film cut to a predetermined length and sent from a film conveyance path is wound around an article conveyed in the article conveyance path to be sleeve-wrapped, and then the shrink film is heated and shrunk to shrink the article. A shrink wrapping method for wrapping, wherein a handle tape is pasted to a predetermined portion of the shrink film in advance of the sleeve wrapping. 5. A method for attaching the handle tape, wherein the handle tape is cut into a predetermined length while sucking and transporting the handle tape by a vacuum roll, and thereafter, the handle tape having a predetermined length is cut. The tape is transferred between the vacuum roll and the pressing roll pressed by the vacuum roll, and is configured to be attached to the shrink film running between the vacuum roll and the pressing roll by the pressing force of the pressing roll. The shrink packaging method according to claim 4, wherein 6. A predetermined speed ratio between a conveying speed of the article by the article conveying path, a conveying speed of the shrink film by the film conveying path, and a conveying speed of the handle tape by the vacuum roll. The shrink wrapping method according to claim 4, wherein each of them is configured to run at a constant speed while holding.