JP3529547B2 - Adhesive tape sticking device for packaging - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape sticking device for sticking an adhesive tape to which a linear adhesive has been applied in advance to a package.

[0002]

2. Description of the Related Art For example, in a thin napkin, a thin napkin has a wrapping body made of a resin film or the like folded in three on a manufacturing line, and after wrapping the wrapping body inside, a peelable adhesive tape It is wrapped by being attached.

Such an adhesive tape is in the form of a strip and is attached to the packaging body so that the longitudinal direction thereof is the product conveying direction. On the release surface of this adhesive tape,
In many cases, streak-like adhesives are applied in a direction substantially perpendicular to the product flow direction in the order of decreasing viscosity to increasing viscosity in the longitudinal direction.

In order to attach the above-mentioned pressure-sensitive adhesive tape so that its longitudinal direction is aligned with the conveying direction of the above-mentioned package, a release tape raw material having a tape width is unwound and a hot-melt adhesive is applied to the release surface. After the coating is performed intermittently at the same timing, the coating is cut into a predetermined length at the further timing and attached to the package.

However, on the production line as described above, it is not necessary to apply a fine streak-like adhesive in the width direction of the peeling tape which is narrower than a few centimeters (perpendicular to the conveying direction of the package). ,very hard. Especially, the viscosity of the adhesive may be different, which is very difficult. For this reason,
There are cases where it does not function as a peelable adhesive tape.

Therefore, an object of the present invention is to provide an adhesive tape sticking device which can stick an adhesive tape to a package by using the adhesive tape to which a strip-shaped adhesive is applied in advance.

[0007]

According to a first aspect of the present invention, a strip-shaped pressure-sensitive adhesive tape having an adhesive applied on one side thereof is conveyed to a package and the longitudinal direction of the pressure-sensitive adhesive tape is the packaging. To a package that is attached so that it is in the direction of product transport
A sticking device for adhering the adhesive tape, the pair of rolls unwinding a predetermined length from an adhesive tape material having the same width as the length of the strip-shaped adhesive tape, and a head for sucking and holding the unwound adhesive tape. A cutter that cuts the adhesive tape held by the head into a strip shape having a predetermined width, and the strip-shaped adhesive tape, and a press roll that attaches the strip to the transported package. Head
A machine that combines a cam mechanism or gears as its turning mechanism.
It has a structure, as well as conveying the pressure-sensitive adhesive tape to a position where the press roll is provided by rotational movement in a state in which the pressure-sensitive tape sucking and holding of the cut strip shape, 該Ka
By a gear mechanism or a mechanism that combines the gears, it turns 90 degrees before reaching the position where the press roll is provided,
The orientation of the adhesive tape to the orientation after the cutting into the package, characterized in that it is configured to invert 90 degrees
The above object is achieved by providing the adhesive tape sticking device.

The invention according to claim 2 is characterized in that a plurality of streak-like adhesives are applied in the longitudinal direction to the adhesive tape raw material, and the adhesive tape for a package according to claim 1 is characterized. The above-mentioned object is achieved by providing the sticking device.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a specific adhesive tape sticking apparatus to which the present invention is applied will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an adhesive tape sticking device, FIG. 2 is an enlarged cross-sectional view of an essential part of a head portion, FIG. 3 is an enlarged perspective view of an essential part of a head reversing mechanism, and FIG. 4 is a cam groove in the head reversing mechanism. FIG. 5 is an enlarged plan view of an essential part of the adhesive tape original fabric, FIG. 6 is a plan view showing a state where the adhesive tape cut into strips is held by the head, and FIG.
FIG. 8 is a plan view showing a state in which the adhesive tape is not attached, FIG. 8A is a plan view showing a state in which the adhesive tape is attached, and FIG.
(B) is a side view, FIG. 9 is a schematic view showing a state in which an adhesive tape is attached to a package by a press roll, FIG. 10 shows a package in which the adhesive tape is attached, (A) is a plan view, (B) is a side view.

As shown in FIG. 1, the adhesive tape sticking apparatus of the present embodiment has a strip-shaped adhesive tape 1 having an adhesive applied on one side thereof, which is applied to a package 2 to be conveyed. Is a sticking device for sticking adhesive tape so that the longitudinal direction of the sticky tape is the conveying direction of the package 2.

This sticking device comprises a pair of rolls (hereinafter referred to as feed rolls) 4 and 5 for unwinding a predetermined length from an adhesive tape raw material 3 having the same width as the length of the adhesive tape 1 in the shape of a strip. A head 6 for suction-holding the unwound adhesive tape 1, a cutter 7 for cutting the adhesive tape 1 held by the head 6 into a strip shape having a predetermined width, and the strip-shaped adhesive tape 1 are conveyed. And a press roll 8 to be attached to the package 2.

The sticking apparatus of this embodiment will be described in more detail. As shown in FIG. 1, the adhesive tape raw material 3 is wound around a cylindrical core 9 in a predetermined number of turns. As shown in FIG. 5, this adhesive tape raw material 3 is obtained by applying an adhesive 11 on one surface of a release tape 10 having a long shape. The adhesive 11 is applied in a streaky pattern along the longitudinal direction of the release tape 10 at predetermined intervals in the tape width direction indicated by arrow Y in FIG. Has been done. The tape width of the peeling tape 10 is the same as the length of the strip-shaped adhesive tape 1 attached to the package 2.

The pair of feed rolls 4 and 5 for unwinding the peeling tape 10 having a predetermined length from the adhesive tape raw material 3 are
It is a nip type roll that has been subjected to a non-adhesive treatment, and is provided so as to face each other vertically as shown in FIG. A vacuum belt 12 is hung between one of the feed rolls 5 and a roller 13 provided at a position where the peeling tape 10 is cut. In the pair of feed rolls 4 and 5 configured as above, the release tape 10 is continuously unwound from the adhesive tape raw material 3 by a predetermined length.

The head 6 is a vacuum type anvil head for sucking and holding the adhesive tape 1 cut into a strip shape, and also functions as a receiving blade of a cutter 7, which will be described later. As shown in FIG. 2, the head 6 has a vacuum box 14 as a vacuum suction means for suction-holding the adhesive tape 1 on the surface 6a.
Are connected. The vacuum box 14 is adapted to suck the adhesive tape 1 onto the head surface 6a by sucking it from a vacuum introducing path 15 connecting the vacuum box 14 and the head 6.

The head 6 is fixed to a ring-shaped rotating body 16 as shown in FIG. In the present embodiment, the heads 6 are provided at positions where the circumference of the rotating body 16 is divided into quarters. These heads 6 are designed to rotate in the direction of arrow A in FIG. 1 by the drive gears 17 and 18 shown in FIG. The pressure-sensitive adhesive tape 1 is conveyed to the position where the press roll 8 is provided.

The head 6 is rotated 90 degrees before reaching the position where the press roll 8 is provided, and the direction of the adhesive tape 1 suction-held on the head surface 6a is reversed 90 degrees with respect to the direction after cutting. I am trying to let you do it. A cam mechanism is used for reversing the head 6.

As the cam mechanism, for example, as shown in FIGS. 2 and 3, a cam plate 19 having a cam groove 30 formed therein, a cam floor 20 provided in the cam groove 30, and a cam floor 20 connected to the cam floor 20, It comprises a follower 22 provided at the base end of a rotary shaft 21 fixed to the head 6.

The cam floor 20 is composed of rollers,
It is provided in a cam groove 30 formed in the rotating cam plate 19. As shown in FIG. 4, the cam groove 30 has a straight portion 30a, which is provided as a vertical length,
It has a portion 30b and an inclined portion 30c connecting the straight portions 30a and 30b, and the inclined portion 30c turns the head 6 by 90 degrees.

As shown in FIG. 2, the head 6 is fixed to the tip of a rotary shaft 21 which is rotatably supported by a bearing 23, and rotates about the rotary shaft 21. The follower 22 is provided at the base end of the rotary shaft 21 and is connected to the cam floor 20.

In the cam mechanism having the above structure, the rotation of the cam plate 19 causes the cam floor 20 to move along the cam groove 30 provided in the cam plate 19. Then, the follower 2 connected to the cam floor 20.
2, the head 6 turns 90 degrees at the inclined portion 30c as shown in FIG. In the present embodiment, between the position where the head 6 is at the left end in FIG. 1 (the 9 o'clock position) and the position where the press roll 8 is provided, and the position where the head 6 is at the right end in the same diagram (the 3 o'clock position). 1 to the position where the adhesive tape 1 is cut, the head 6 is rotated 90 degrees in the direction indicated by arrow B in FIG.

The cutter 7 is a rotary cutter and cuts the adhesive tape 1 held by the head 6 into a strip shape having a predetermined width. Such a cutter 7
As shown in FIG. 2, the drive gear 24 rotates in the direction of arrow C in FIG. 1 to cut the adhesive tape 1 held by the head 6 into a strip shape as shown by a chain double-dashed line in FIG. Has become.

The press roll 8 is adapted to attach the strip-shaped adhesive tape 1 to the conveyed package 2. The press roll 8 is made of a soft urethane roll, and the package 2 is pressed against the adhesive tape 1 sucked and held by the head 6 to form the package 2.
Is closely attached to the adhesive tape 1.

The package 2 has three conveyor belts 24, 25, 26 provided above and below the package 2 with the package 2 interposed therebetween.
Thus, it is conveyed in the direction indicated by arrow D in FIG. These conveyor belts 24, 25, 26
Are provided one each on the left and right sides of the head 6 which is provided at the position where the adhesive tape 1 is attached, and one is provided at a position facing these. The transport belts 24, 25, 26 are all rotated by a pair of drive rollers 27, 28.

With the sticking device configured as described above,
The adhesive tape 1 is attached to the package 2 as follows. First, an adhesive tape raw material 3 to which a strip-shaped adhesive 11 is applied in advance in the longitudinal direction of the peeling tape 10 is prepared. Here, since the striped adhesive 11 is applied in the longitudinal direction of the peeling tape 10, it can be easily applied unlike the one applied in the tape width direction. Therefore, it becomes possible to use the adhesive tape raw material 3 to which the striped adhesive 11 is applied in advance.

Next, the release tape 10 is continuously unwound by the pair of feed rolls 4 and 5 in the direction indicated by arrow E in FIG. Then, the peeling tape 10 wound to a predetermined length is suction-held by the head 6. Next, the peeling tape 10 sucked and held by the head 6 is, as shown by a chain double-dashed line in FIG.
It is cut by the cutter 7 in the tape width direction.

The cut adhesive tape 1 is suction-held by the head 6 as shown in FIG. Although only one adhesive tape 1 is illustrated in FIG. 6 in order to clarify the arrangement direction of the adhesive tape 1, a plurality of adhesive tapes 1 are originally suction-held by the head 6.

Next, the adhesive tape 1 is rotated and moved in the direction indicated by the arrow A in FIG. Then, the head 6 starts to rotate in a direction indicated by an arrow B in FIG. 1 in accordance with the rotational movement, and before the head 6 reaches the position where the press roll 8 is provided, the head 6 is rotated.
Turns 90 degrees as shown in FIG. As a result, the pressure-sensitive adhesive tape 1 is in a state of being turned 90 degrees with respect to the direction after cutting,
That is, the tape longitudinal direction is the transport direction of the package 2.

Then, the package 2 conveyed by the conveyor belts 24 and 25 is pressed by the press roll 8 onto the adhesive tape 2 sucked and held by the head 6. In the present embodiment, as the package 2, as shown in FIG. 8, a package 29 made of a resin film or the like is folded in three and a thin napkin (not shown) is wrapped inside the package.

When the package 2 is pressed against the pressure-sensitive adhesive tape 1 by the press roll 8, the pressure-sensitive adhesive tape 1 is closely attached to the folded portion of the package 29. As a result, the adhesive tape 1 is attached such that its longitudinal direction is in the transport direction of the package 2.

Since the adhesive tape 1 here is preliminarily coated with the striped adhesive 11 in the tape longitudinal direction, which is easy to apply, it reliably functions as a peelable adhesive tape. Further, in the tape attaching step, since it is not necessary to perform a troublesome work such as applying an adhesive to the release tape,
The work of attaching the adhesive tape 1 to the package 2 is simplified and facilitated.

The device for applying the adhesive tape to the package of the present invention is not limited to the above-mentioned embodiment, and can be appropriately changed without departing from the gist of the present invention. For example,
In the above-described embodiment, a thin napkin is given as an example of the object to be packaged, but the object to be packaged may be any object and is not limited to this. Further, although the cam mechanism is used to rotate the head 6, a mechanism in which gears are combined can be used instead.

In the above embodiment, the soft urethane roll is used as the press roll 8, but a steel roll may be used.

[0034]

As is apparent from the above description, according to the device for sticking an adhesive tape to a package of the present invention , the adhesive tape is preliminarily coated with a streak-like adhesive to form the adhesive tape. An adhesive tape sticking device that can be stuck to a package can be provided .

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an adhesive tape sticking device to which the present invention is applied.

FIG. 2 is an enlarged cross-sectional view of a main part of a head portion in an adhesive tape sticking device to which the present invention is applied.

FIG. 3 is an enlarged perspective view of a main part of a head reversing mechanism in an adhesive tape sticking device to which the present invention is applied.

4 is a development view of a cam groove in the head reversing mechanism shown in FIG.

FIG. 5 is an enlarged plan view of a main part of the raw material of the adhesive tape in the adhesive tape sticking device to which the present invention is applied.

FIG. 6 is a plan view showing a state in which an adhesive tape cut into strips is held by a head in an adhesive tape sticking device to which the present invention is applied.

FIG. 7 is a plan view showing a state in which the head is inverted by 90 degrees in the adhesive tape sticking device to which the present invention is applied.

FIG. 8 shows a package in a state before the adhesive tape is attached in the adhesive tape attaching device to which the present invention is applied,
(A) is a plan view and (B) is a side view.

FIG. 9 is a schematic diagram showing a state where an adhesive tape is attached to a package by a press roll in the adhesive tape attaching apparatus to which the present invention is applied.

FIG. 10 shows a package in which the adhesive tape is attached in the adhesive tape attaching device to which the present invention is applied,
(A) is a plan view and (B) is a side view.

[Explanation of symbols]

1 Adhesive tape 2 packages 3 roll of adhesive tape 4,5 feed roll 6 heads 7 cutter 8 press rolls 11 Adhesive

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Claims (2)

(57) [Claims] 1. A strip-shaped pressure-sensitive adhesive tape having an adhesive applied on one side thereof is attached to a package to be transported such that the longitudinal direction of the adhesive tape is the transport direction of the package.
A device for sticking an adhesive tape to a package, comprising a pair of rolls for winding a predetermined length from a roll of the adhesive tape having the same width as the length of the strip-shaped adhesive tape, and sucking the unwound adhesive tape A head for holding, a cutter for cutting the adhesive tape held by the head into a strip shape having a predetermined width, and a press roll for sticking the strip-shaped adhesive tape to the conveyed packaged article. The head has a cam mechanism or a gear as its turning mechanism.
A combined mechanism is provided to convey the adhesive tape to a position where the pressure roll is provided by rotating the adhesive tape in a cut shape while suction-holding the adhesive tape, and the cam mechanism or the gear. To the combined mechanism
More, 9 before reaching the position where the press roll is provided
A device for sticking an adhesive tape to a package, which is configured to rotate 0 ° and reverse the direction of the adhesive tape by 90 ° with respect to the direction after cutting. 2. The sticking device for sticking an adhesive tape to a package according to claim 1 , wherein the adhesive tape stock is coated with a plurality of streaky adhesives in the longitudinal direction.