JP2947795B1 - Hinge lid type packing machine - Google Patents

Abstract

A packaging machine for manufacturing a hinge-lid type cigarette pack having a locking mechanism (a tongue and an engaging edge) without significant modification is provided. SOLUTION: The packaging machine has a pair of tongue raising rollers 34, 36 downstream of a pair of blank cutter rollers 30, 32.
A folding hole 46 is formed on one roller 34, and a folding protrusion 48 is formed on the other roller 36. Folding the projections 48 tongue scheduled portion T formed in the blank BL ₂ in cooperation with the folding holes 46
The tongue piece T is formed by folding the y.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to a hinge lid pack packaging machine suitable for packaging cigarettes or filter cigarettes.

[0002]

2. Related Background Art In recent years, hard packs, that is, hinge-lid packs, are often used as filter cigarette packs instead of soft packs. Compared with the soft pack, the hinge lid pack can better protect the filter cigarette inside from external force, and if the lid is closed, even if the tobacco cut in the pack falls off,
The cut tobacco is not discharged out of the pack.

[0003] Therefore, in order to prevent inadvertent opening of the lid, it is desirable to provide a hinge locking mechanism for such a hinge lid type pack. For example, the locking mechanism can be realized by a tongue piece cut and raised from the inner frame of the pack and an engaging edge formed by an opening edge or the like on the inner flap of the lid. In this case, the lid is opened by overcoming the engagement between the tongue piece and the engagement edge, and the inadvertent opening is reliably prevented.

[0004]

When the above-mentioned hinge lid type pack with a locking mechanism is manufactured by a packaging machine, an opening for the engaging edge is previously formed in the main body blank of the pack body. Once formed, the engaging edge can be obtained without any modification to the packaging machine. However, in the case of a tongue piece formed by cutting and raising a part of the inner frame, it is not possible to obtain the tongue piece simply by forming a tongue piece section demarcated by a cutting line and a folding line in the blank, and the packaging machine is not provided. Further, a mechanism for folding the tongue piece into the blank and raising it is required.

The present invention has been made in view of the above circumstances, and has as its object to minimize the modification of a packaging machine and to form a tongue piece cooperating with an engaging edge. It is an object of the present invention to provide a packaging machine for a hinge lid type pack that can be used.

[0006]

According to a first aspect of the present invention, there is provided a packaging machine for a hinge lid type pack, wherein a pair of blank cutter rollers for forming a blank of an inner frame from a web material are provided with cut lines and fold lines. While the function of forming the tongue piece is added, a pair of tongue raising rollers for folding and raising the tongue piece of the blank is provided downstream of these blank cutter rollers so as to be rotatable. Specifically, of the pair of tongue raising rollers, a fold hole is formed on one outer peripheral surface thereof,
A folding projection is formed on the outer peripheral surface of the other roller to enter the folding hole with a tongue piece expected portion.

According to the above-described packaging machine, when the blank sent out from the pair of blank cutter rollers passes between the pair of tongue raising rollers, the folding projections are inserted into the folding holes together with the blank tongue piece expected portions. Penetrates and folds the intended tongue piece from its fold line. Thus, after the blank has passed through a pair of tongue raising rollers, the blank has a cut and raised tongue.

[0008] Thereafter, the packaging machine manufactures a hinge lid type pack by sequentially folding the blank for the inner flap and the pack body around the inner bundle of the cigarette or the filter cigarette as is known.

Preferably, at least one of the tongue-raising rollers has a clearance on the outer peripheral surface thereof to prevent the leading portion of the blank from being pinched. In this case, the blank is smoothly guided between the pair of tongue-raising rollers, and the blank,
That is, the approaching phase of the tongue piece is accurately maintained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a hinge lid type cigarette pack P has a locking mechanism for its lid L. This locking mechanism includes a tongue piece T on the pack body B side and a tongue piece T on the lid L side. And an opening A. The tongue piece T is cut and raised from the inner frame F, and the opening A is formed in the inner flap superimposed on the inner surface of the front panel of the lid L. The opening A has a substantially triangular shape,
The lid L has a side parallel to the front opening edge, that is, an engagement edge E. Both ends of the engaging edge E are connected to the other two sides of the opening A via inclined edges. Therefore, as is apparent from FIG. 1, the opening A is actually a pentagon, and a predetermined engaging piece region R is left between the engaging edge E and the front opening edge of the lid L. .

According to the cigarette pack P described above, FIG.
When the lid L is closed from the state described above, the engagement piece region R of the lid L hits the tongue piece T and gets over the tongue piece T while being further folded. At the time of overcoming, the tongue piece T flips the engaging edge E of the lid L at its tip by its own restoring force,
Generates a clear clicking sound. This clicking sound indicates that the lid L is completely closed. Thereafter, the tip of the tongue piece T is maintained in the opening A of the lid L such that the tip thereof abuts on the engagement edge E.

Conversely, when the lid L is opened, the engagement edge E and the tongue T are in a state of abutting against each other, so that their engagement resists the opening operation of the lid L, and the lid L is inadvertently prepared. Opening is reliably prevented. When the lid L is opened by overcoming the engagement between the engagement edge E and the tongue piece T,
The engaging edge E folds the tongues T so that when they disengage, the tongues T likewise flip the engaging edge E, producing a distinct clicking sound. The click sound in this case indicates that the lid L has been opened.

The cigarette pack P shown in FIG. 1 is formed by folding a blank BL ₁ for the pack body B and the lid L, and a blank BL ₂ for the inner frame F around a cigarette bundle to be described later. The blanks BL ₁ and BL ₂ are shown in FIG. The formation itself of the folding lines in the blanks BL ₁ and BL ₂ is known, and the description thereof is omitted.

The cigarette pack P shown in FIG. 1 is manufactured by the packaging machine shown in FIG. The packaging machine is known except for the supply system of the blank BL ₂ for the inner flaps F, briefly explaining the structure of the entire packaging machine below.

The packaging machine includes a cigarette turret 2 indicated by a dashed line, and a hopper 4 storing a large number of filter cigarettes is disposed near the cigarette turret 2. Each bucket 6 of the cigarette turret 2 is a hopper 4
And 20 filter cigarettes are received in a three-tiered bales state, and then transferred to the transfer line 8 together with the cigarette bundle as the cigarette turret 2 rotates. At the transfer line 8, the bundle of cigarettes in the bucket 6 is transferred into the mouthpiece 10, and thereafter transferred along the transfer line 8 together with the mouthpiece 10.

At the end of the transfer line 8, an aluminum foil web AW as an inner packaging material is supplied from above, and the aluminum foil web AW is unwound from an aluminum foil roll AR. Incidentally, in the vicinity of the aluminum foil rolls AR is arranged a similar aluminum foil roll AR1 shown by a chain line, the aluminum foil roll AR ₁ is waiting roll.

An aluminum foil sheet S having a predetermined length is formed by cutting from the aluminum foil web AW.
Is suspended across the end of the transfer line 8.

The cigarette bundle in the mouthpiece 10 is pushed from the mouthpiece 10 together with the aluminum foil sheet S into the encapsulating line 12, whereby the aluminum foil sheet S
Is folded around the cigarette bundle. Thereafter, in the process of further transporting the cigarette bundle on the encapsulation line 12, the edge folds and the side flaps of the aluminum foil sheet after the body folding are sequentially performed, and the cigarette bundle internal IS
Is formed.

[0019] At encapsulated line 12 above, encapsulated body IS is supplied with blank BL ₂ for the inner frame F. At the same time the blank BL ₂ is bonded superimposed on inclusion body IS, both sides of the side flaps are folded along both sides of the inclusion body IS, at this point, the blank BL ₂
Is completed, and the inner flap F is formed.
With respect to the supply system of the blank BL ₂ will be described later.

At the end of the inclusion line 12, a folding turret 14 indicated by a chain line is arranged. Folding turret 14 receives a supply of blank BL ₁ for the pack body B and the lid L from the blank hopper, successively carrying out the folding of the blank BL ₁ along with its rotation. Here, an opening A for engagement edge E as described above has already been formed in the blank BL _1.

The proceeds folding of the blank BL ₁ until a predetermined step, the blank BL ₁ is positioned at the end of the encapsulated line 12, encapsulated body IS from encapsulated line 12 to the receiving portion of the blank BL ₁ with inner flap F
There is provided, this time, inclusion body IS is adhered to the blank BL _1.

[0022] After this, folding of the blank BL ₁ along with the rotation in the folding turret 14 leaves the last folding step is carried out continuously. That is, the packaging of the inner packet IS is almost completed in the folding turret 14, and the semi-finished pack IP is obtained. Here, the semi-finished pack IP refers to a cigarette pack P in which the left and right outer side flaps of the front panel are not yet folded.

The semi-finished product IP is a folding turret 1
4 to the transfer line 16 and the transfer line 16
It is conveyed toward the first drying drum 18 indicated by the one-dot chain line. At the end of the transfer line 16, a transfer turret 20, also indicated by a dashed line, is arranged. The transfer turret 20 receives the semi-finished pack IP from the transfer line 16 and transfers the semi-finished pack IP to the first drying drum 18. In this case, the pack blank IP both outer side flaps of folded along its corresponding side of the inner side flaps, and mutual be bonded with the, and the folding is completed blank BL _1, resulting cigarette pack P is Can be

Thereafter, in the process of transporting the cigarette pack P with the rotation of the first drying drum 18, the glued portion thereof is dried, and the cigarette pack P is transferred from the first drying drum 18 via the transport path 22 to the alternate long and short dash line. After being transferred to the second drying drum 24 and further subjected to a drying process on the second drying drum 24, it is sent out from the second drying drum 24 to the envelope machine. In the outer packaging machine, the cigarette pack P is further wrapped with a film sheet.

Next, the supply system 26 of the blank BL ₂ for the inner frame F will be described.

As shown in FIG. 3, the supply system 26 includes a blank roll BR.
Is along the parallel supply path 28 and containing line 12, feeding the blank web BW is the material of the blank BL _2. Note that the standby roll BR ₁ is prepared in the vicinity of the blank roll BR.

As shown in FIG. 4, a pair of upper and lower blank cutter rollers 30, 3 are provided at the end of the supply path 28.
2 are rotatably arranged. When the blank web BW is guided between these blank cutter rollers 30, 32, as shown in FIG. 5, the blank cutter rollers 30, 32 are rotated, and the side flaps are formed on both sides of the blank web BW. The blank web BW is cut at predetermined intervals while forming a fold line FL for partitioning the
Cut out ₂ continuously. While the blank BL ₂ has a rectangular shape as a whole, while the front central portion as viewed in the cut direction is projected, its rear central portion is recessed in the opposite. In addition,
Although the fold line FL is a perforation, a part of the fold line FL is replaced with a cut line CL at a predetermined interval. Cut line CL when the side flaps blank BL ₂ is folded in the inclusion body IS, as described above, to form the engaging piece to the inner surface engages the lid L to both side edges of the inner flaps F.

[0028] The pair of the blank cutter rollers 30 and 32 in addition to forming function of the blank BL ₂ described above, also has a forming function of the tongue piece portions to be Ty to be a tongue piece T described above. The tongue piece expected portion Ty has a cut line Cx corresponding to the contour of the tongue piece T and a perforation at the base thereof, that is, a fold line Fx.
Therefore, a cutting blade for forming the cutting line Cx and the folding line Fx is further added to the outer peripheral surfaces of the pair of blank cutters 30 and 32.

In the supply direction of the blank web BW, a pair of upper and lower tongue raising rollers 34, 36 are rotatably disposed downstream of the pair of blank cutter rollers 30, 32, and the tongue raising roller 34 is provided. , 36 and the blank cutter rollers 30, 32, a pair of upper and lower separation rollers 37, 39 are arranged. D ₁ the distance between the rollers 37, 39 separated from the blank cutter rollers 30 and 32, cause the separation roller 37, 39 and the tongue roller 3
Assuming that an interval between the distances D ₁ and D ₂ is D ₂ , these intervals D ₁ ,
D ₂ is shorter than the total length L ₁ of the blank BL _2, and longer than the cut length L ₂ of the blank BL _2. Cut length L ₂ corresponds to the length of the side edges of the blank BL _2. Thus, when the blank BL ₂ is cut from the blank web BW, central head portion of the blank BL2 is enters between the separation roller 37 and 39, it is sandwiched between the separation roller. As shown in FIG. 6, the separation rollers 37 and 39 are blank BL.
The diameter of the part corresponding to the central part of ₂ is slightly larger than the other parts, and only the central part of the blank BL2 can be substantially clamped. The peripheral speed of the separation rollers 37, 39 is slightly higher than the peripheral speed of the blank cutter rollers 30, 32. Thus, when the blank BL ₂ is cut, at the same time the blank BL ₂ from being subjected to tensile force by the separation roller 37, 39, is corrected slack blank web BW is, when perform the cutting of the blank BL ₂ accurately cut rear,
Blank BL ₂ is separated from the blank web BW.

Similarly, before the blank BL ₂ passes through the separation rollers 37 and 39, the central leading portion of the blank BL ₂ enters between the tongue raising rollers 34 and 36.

FIG. 7 shows a pair of tongue raising rollers 34, 36.
Is shown more specifically. These tongue raising rollers 3
4,36 is its central part circumferential groove 38 is formed respectively, you can contact rolling each other through the blank BL ₂ at its both ends. That is, the upper tongue raising roller 34
Are formed at both ends as feed wheels 40 made of a rubber ring. On the other hand, both ends of the lower tongue raising roller 36 are formed as feed wheels 42 whose outer peripheral surfaces are tooth-knurled. ing. And each feed wheel 4
A cutout area 44 is formed in a part of the outer peripheral surface of the feed wheel 2, and the cutout area 44 extends over a predetermined rotation angle range when viewed in the circumferential direction of the feed wheel 42.

A rectangular fold hole 46 is formed at the center of the bottom of the peripheral groove 38 of the tongue raising roller 34, while a substantially triangular hole is formed at the center of the bottom of the peripheral groove 38 of the tongue raising roller 36. A column-shaped folding projection 48 is provided. The folding protrusion 48 extends in the axial direction of the roller 36 and protrudes outward from the outer peripheral surface of the feed wheel 42 so that the tongue raising rollers 34, 36 are periodically engaged with the folding holes 46 of the roller 34. And can enter the insertion hole 46.

[0033] Before the blank BL ₂ as described above passes between the separation roller 37 and 39, the central head portion of the blank BL ₂ is enters between the tongue-and-raised rollers 34, 36.
However, this time, the central head portion of the blank BL ₂ enters the passage formed by the between the circumferential groove 38 of the roller 34 and 36, will not be held between between the feed wheels 40,42. Thereafter, since the front ends of both side flaps of the blank BL ₂ even reaches between the rollers 34 and 36, both side flaps is enters between the missing region 44 of the feed wheel 40 and the feed wheel 42, these feeds Wheel 4
It is not substantially sandwiched between 0 and 42. Therefore, the leading portion of the blank BL ₂ sent out between the separation rollers 37 and 39 smoothly enters between the tongue raising rollers 34 and 36, and the blank BL ₂ is fed by these rollers 34 and 36.
₂ feed will not be clogged. That is, the circumferential groove 38 and the missing region 44 has a relief for avoiding clogging of the blank BL _2.

Thereafter, when both side flaps of the blank BL ₂ are disengaged from the missing region 44 and are firmly held between the feed wheels 40 and 42, the blank BL ₂ is caused by the rotation of the tongue raising rollers 34 and 36. Is sent out between the pair of upper and lower transfer rollers 52 and 54 in the subsequent stage. In this sending process, the folding projection 48 of the roller 36
L ₂ folding holes 4 of the tongue portion to be accompanied by Ty roller 34
6 and folds the tongue piece expected portion Ty from its folding line Fx. At this time, the folding line Fx of the tongue piece planned portion Ty
Is positioned at the opening edge of the folding hole 46, and the tongue piece expected portion Ty is accurately folded from the folding line Fx.

The blank BL ₂ has a tongue raising roller 34,
36, the tongue piece planned portion Ty is maintained in the folded state, and as shown in FIG.
₂ , a tongue piece T is formed by cutting and raising. Incidentally, the roller 34, 36 cause the tongues may also be used to attach the habit folding both side edges of the blank BL _2.

On the other hand, the peripheral speed of the tongue raising rollers 34 and 36 is faster than the peripheral speed of the separation rollers 37 and 39, and the blank B
L ₂ is accelerated and supplied between the transfer rollers 52 and 54. Thus, the blank BL2 is largely separated from the succeeding blank BL _2, transfer conveyor 50 from the transfer roller 52 through the downstream pair of upper and lower transport rollers 56 and 58
Are supplied at predetermined intervals. In addition, the transfer roller is for nipping only both side edges of the blank BL2,
When the blank BL ₂ passes between the transport rollers, the tongue piece T
The upset is not returned. Furthermore, elimination mechanism for eliminating blank BL ₂ defective between the tongue-and-raised rollers 34, 36 and the transfer roller 52, 54 (not shown) is provided.

The transfer conveyor 50 is the above-mentioned inclusion line 1
Blank BL ₂ is transferred at a predetermined timing 2 above, this timing is determined by the acceleration of the blank BL ₂ by tongue-and-raised rollers 34, 36. Thereafter, the blank BL ₂ is overlapped on the inclusion body IS on the inclusion line 12, and at the same time, both side flaps are folded in,
The inner frame F is obtained. 4 and 5, the transfer conveyor 50 is indicated only by an arrow and a dashed line. In addition,
In FIG. 4, the inclusion line 12 indicated by the arrow is shown bent, but this is due to the drawing convenience.

The present invention is not limited to the above-described embodiment, and various modifications are possible. For example, a missing region similar to the missing region 44 may be formed on the feed wheel 40 of the upper tongue raising roller 34. In addition, blank BL
Specific contour shape and the blank BL ₂ of the _first opening A can be changed as needed. Further, the hinge lid type pack of the present invention is applicable to packaging of filter cigarettes and products other than cigarettes.

[0039]

As described above, according to the packaging machine of the present invention (Claim 1), it is necessary to add a pair of tongue raising rollers without necessitating a large modification of the packaging machine. Production of hinge lid type pack with stop mechanism, that is,
The packaging can be done easily. Further, since at least one of the tongue raising rollers is provided with a relief, the cut-out blank can be stably and actually guided between the tongue raising rollers (claim 2).

[Brief description of the drawings]

FIG. 1 is a perspective view of a hinge lid type cigarette pack having a lid locking mechanism.

FIG. 2 is a plan view showing a blank for a cigarette pack.

FIG. 3 is a schematic view showing a procedure for packaging a cigarette pack in a packaging machine.

FIG. 4 is an enlarged and partially detailed view of FIG. 3;

FIG. 5 is a diagram showing an arrangement of a blank cutter roller and a tongue raising roller.

FIG. 6 is a detailed view of a separation roller.

FIG. 7 is an enlarged perspective view of a pair of tongue raising rollers.

[Explanation of symbols]

28 Supply path (web supply path) 30, 32 Blank cutter roller 34, 36 Tongue raising roller 38 Peripheral groove (escape) 44 Missing area (escape) 46 Fold hole 48 Fold projection F Inner frame BL ₂ blank

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ identification code FI B65D 85/10 B65D 85/10 (58) Investigated field (Int.Cl. ⁶ , DB name) B31B 1/00-49/04 B31C 1/00-13/00 B31D 1/00-5/04 B65B 19/00-19/32 B65D 85/10

Claims (2)

(57) [Claims] 1. A packaging machine for a hinge lid type pack having an inner frame on the pack body side and an openable / closable lid, wherein a web supply path for supplying a web material for the inner frame, and a terminal at the end of the web supply path. While being rotatably disposed, a blank of the inner frame is sequentially cut out from the web material as the web material passes, and a tongue piece scheduled portion including a cutting line and a folding line is formed in the blank prior to the cutting. A pair of blank cutter rollers, a pair of tongue raising rollers that are rotatably disposed downstream of the blank cutter roller, and receive and sandwich the blank sent from the blank cutter roller; and one of the tongue raising rollers A folding hole formed in the outer peripheral surface of the And a folding projection formed on the outer peripheral surface of the tongue and penetrating into the fold together with the tongue piece when the blank passes, and folding the tongue piece from the folding line to form the tongue piece. A packing machine for a hinged lid type pack. 2. The hinge lid type pack according to claim 1, wherein at least one of the tongue-raising rollers further has a relief on an outer peripheral surface thereof to avoid pinching of a leading portion of the blank. Packaging machine.