JP2000053112A - Packaging material processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processor which can lighten a load applied to a drive source and is suitable for speeding up operation as to equipment for perforating a web for packaging, etc. SOLUTION: A long parcel paper P is fed toward the packaging section of a packaging machine through a supply line 6. Perforating equipment 20 is provided with a perforation cutter 30 extending transversely along the parcel paper P and a cutter receive roller 40. The cutter receive roller 40 can travel on the edge of the perforation cutter 30 by the running of a timing belt 24. The movement of the cutter receive roller 40, rolling on a knife part 42 during the process through the parcel paper P, forms perforation on the parcel paper P.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus for perforating a packaging material in a process of supplying the packaging material to a packaging machine.

[0002]

[Related Background Art] A perforated packaging material can facilitate opening work of a completed packaged product. For example, when packaging integrated products such as cigarette packs at one time, Is also used. For example, Japanese Patent Laying-Open No. 10-230552 discloses an apparatus for adding perforations, that is, perforations to a web (packaging material) for collectively packaging a group of cigarette packs. . This known device is provided with a perforated disc having a perforated blade on the outer periphery, and by rotating the perforated disc across the web,
The web is to be perforated.

[0003] More specifically, a perforated disk is mounted on one end of a rotating shaft, and a gear is mounted on the other end of the rotating shaft. On the other hand, a fixed rack is arranged in the transverse direction of the web, and the above-described gear is meshed with the fixed rack. The perforated disc, the gears and the rotating shaft are all configured as a single unit traversing the web, and the movement of the perforated unit is guided by rails extending parallel to the fixed rack.

According to the above-described apparatus, by moving the perforating unit in the transverse direction of the web, its gear rolls on the fixed rack to integrally rotate the perforated disc. At this time, it is recognized that the perforated disk can traverse the web while engaging the perforated blade with the web and form perforations on the traversed path.

[0005]

However, in the case of the known device, the entire punching unit including the gear for rotating the punching disk and the rotating shaft is moved.
The inertial mass of the moving part is large. Therefore, the known device requires a large driving force for moving the perforation unit, and the device is correspondingly increased in size.

Further, in the operation cycle of the entire packaging machine, it is necessary to quickly move and stop the perforating unit within a time period in which the feeding of the web is temporarily stopped. However, moving and stopping such a drilling unit requires a long operating time depending on its inertial mass. For this reason, the known device is not suitable for high-speed operation, undesirably extending the operation cycle time of the entire packaging machine, and hindering the improvement of its production efficiency.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a packaging material processing apparatus suitable for high-speed operation without increasing the size of the apparatus. It is in.

[0008]

SUMMARY OF THE INVENTION A packaging material processing apparatus according to the present invention (Claim 1) includes a perforation cutter disposed transversely along a packaging material supply path. A cutter region is formed at an edge of the cutter so as to face the packaging material. The perforated cutter is supported so as to be able to approach and separate from the supply path, and is normally provided with an urging force in the approach direction thereof. A cutter receiving roller is provided on the opposite side with respect to the supply path, and the outer surface of the cutter receiving roller is brought into contact with the edge of the perforated cutter, and the edge is partially cut from the outer surface. Can be moved from one end to the other end in the state of being received by the user.

According to the above-described processing apparatus, the edge portion is pressed against the cutter receiving roller by the urging force applied to the perforated cutter. Therefore, the cutter receiving roller rolls on the cutter area via the packaging material in the process of moving. Such rolling of the cutter receiving roller causes the edge of the perforated cutter to bite into the packaging material,
Perforations are formed by the length of the cutter region in the transverse direction of the packaging material.

Further, the perforated cutter of the present invention may have guide members at both ends thereof (claim 2). These guide members are supplied by cutter receiving rollers in the region of both ends of the perforated cutter. When moving to the outside of the route, the movement is relatively guided, so that the perforated cutter is separated from the packaging material against the urging force. in this case,
When the cutter receiving roller stops its movement, the perforated cutter has already been separated from the packaging material, so that the packaging material can be fed out immediately thereafter.

Furthermore, when the cutter receiving roller moves from the outside of the supply path to the inside, the guide member described above can relatively guide the approach of the perforated cutter due to the urging force with the movement of the cutter receiving roller. (Claim 3). In this case, the above-described perforation processing can be repeatedly performed by the cutter receiving roller alternately reciprocating between both ends of the perforation cutter.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a processing apparatus according to the present invention. FIG. 1 schematically shows a process of stacking and packing cigarette packs by a stacking and packaging machine. This integrated packaging machine
The apparatus includes a transport line 2 for transporting soft cigarette packs T in which 20 cigarettes are packed, for example, in a stack of two, and a packaging line 4 disposed above the transport line 2. Extends in the direction orthogonal to the transport line 2 from near the end of the transport line 2.

Above the wrapping line 4, a supply line 6 (supply route) for the parcel paper P as a wrapping material is arranged. The supply line 6 is provided with a paper roll (not shown), from which the parcel paper P is drawn. The parcel sheet P pulled out from the paper roll is guided between the feed roller 8 and the pinch roller 10 via a number of guide rollers, and is fed downward by the rotation of the feed roller 8.

Immediately below the feed roller 8, a cutter unit 12 is arranged.
Is composed of, for example, a fixed blade and a movable blade. The cutter unit 12 cuts the fed parcel sheet P to a predetermined length, that is, a length corresponding to the size of the product to be packaged, as the movable blade advances and retreats, and forms a parcel sheet S having a predetermined length.

As shown in FIG. 1, a sheet supply surface for supplying the formed parcel sheet S to the packaging line 4 is disposed below the cutter unit 12, and the sheet supply surface is provided in a package. It extends vertically toward line 4. More specifically, the sheet supply surface is composed of a pair of endless suction belts 14 that are separated from each other in the left and right directions.
, And travels downward in a state where is sucked and held, and conveys the parcel sheet S with the travel. It should be noted that a center suction belt may be further disposed between the left and right suction belts 14 on the sheet supply surface.

On the other hand, an elevator 16 is arranged at the end of the transport line 2, and the elevator 16 is located within a range from the same level position as the transport line 2 to the same level position as the reference plane of the packaging line 4. It can be moved up and down. In FIG. 1, only the elevator passage of the elevator 16 has two lift passages.
This is indicated by a chain line. On the elevator 16, two-tiered cigarette packs T sent out from the transport line 2 are accumulated in a press-and-press system, and a two-tier × five-row product aggregate Ts as shown is formed. The elevator 16
Has a depth enough to receive the cigarette packs T arranged in five rows.

When the product aggregate Ts is formed on the elevator 16, the elevator 16 rises from the same level as the packaging line 2 and lifts the product aggregate Ts to the same level as the reference plane of the packaging line 4. . In addition, a pusher 18 is disposed near the start end of the packaging line 4,
The pusher 18 can advance toward the packaging line 4 as indicated by an arrow in the figure. The pusher 18
Moves forward / backward as the reciprocating slider (not shown) reciprocates.

As is well known, the feed roller 8, suction belt 14, elevator 16 and pusher 18 described above are operated in conjunction with each other in accordance with the operation cycle of the stacking and packaging machine. That is, the feed roller 8
Feeds out the parcel sheet P by a predetermined length and stops, and at that timing, the cutter unit 12 operates, and the parcel sheet P is cut in the horizontal direction to form the parcel sheet S. A registration mark is printed on the parcel paper P along with cigarette brands and the like at regular intervals, and a registration mark sensor 19 for detecting the registration mark is arranged in the middle of the supply line 6. This interval is set according to the length of the parcel sheet S to be formed, and the feed roller 8 feeds out the parcel sheet P by the length of the parcel sheet S based on a sensor signal from the registration mark sensor 19. Can be stopped.

The suction belt 14 travels in conjunction with the feed roller 8 so as to rotate, receives the formed parcel sheet S, and supplies it to the packaging line 4. Further, when the parcel sheet S is at a predetermined position on the suction belt 14 and the product aggregate Ts is at the same level as the packaging line 4 as the elevator 16 rises, the pusher 18 moves forward and the product aggregate Ts Into the packaging line 4. Such advance of the pusher 18 pushes the product aggregate Ts on the elevator 16 together with the parcel sheet S to the body folding completion position in the packaging line 4. By this pressing, the parcel sheet S is folded in a U-shape by the product aggregate Ts as is known.

Thereafter, in the process of transferring the product aggregate Ts in the packaging line 4 as shown in FIG.
These glues are sequentially performed together with the front and rear ear folds, the side flap lower flaps, and the side flap upper flaps, so that a parcel packaged product PC in which packaging has been completed is obtained. Such folding and gluing are known, and details thereof are omitted from the drawings. Further, the obtained parcel packaged product PC is further attached with a label indicating a cigarette brand on both sides in a later process of the packaging line 4 and finally packed in a box.

In the packaging process shown in FIG. 1, a perforation processing device 20 according to the embodiment is disposed in the middle of the supply line 6 for the parcel paper P.
Details of 0 are shown in FIG. Referring to FIG. 2, the internal configuration of the perforation processing device 20 is shown. The perforation processing device 20 includes a reciprocating drive belt 24 composed of a timing belt in a casing 22. The reciprocating drive belt 24 is arranged such that its traveling direction is in the width direction of the parcel paper P, that is, in the transverse direction. I have. The reciprocating drive belt 24 is wrapped around a pair of toothed pulleys 26 and 28 which are separated from each other by a distance larger than the width of the parcel sheet P, and one toothed pulley 26 is a driving pulley. A servomotor (not shown) is connected to one of the toothed pulleys 26.

A perforated cutter 30 is provided below the reciprocating drive belt 24 on the opposite side of the supply line 6. The perforated cutter 30 extends in the transverse direction along the supply line 6, and the parcel paper P is drawn between the reciprocating drive belt 24 and the perforated cutter 30. As is apparent from FIG. 2, both ends of the perforated cutter 30 extend to both sides of the parcel sheet P.

The casing 22 has a large opening on the side where the parcel paper P is drawn in, and this opening is formed between a pair of walls 32 closing both ends of the drawing side. The above-described perforated cutter 30 is suspended and supported on the wall 32 at both ends via springs 34, respectively.
A pin 36 for hooking is provided. Each spring 34 is composed of a tension coil spring, and urges the perforated cutter 30 toward the reciprocating drive belt 26, that is, the supply line 6 in the state shown in the drawing (support means).

As is apparent from FIG. 2, the perforated cutter 30 is connected to the supply line 6 via a spring 34.
(Supporting means). Also,
The perforated cutter 30 is guided by a linear guide (not shown) in the vertical direction, so that the perforated cutter 30 can move up and down while maintaining the horizontal posture shown in the figure.

On the other hand, the reciprocating drive belt 26 is provided with a slider 38 which can reciprocate as it travels. The slider 38 includes a cutter receiving roller 40 which contacts the upper edge of the perforated cutter 30. ing. Since the perforated cutter 30 is urged toward the reciprocating drive belt 26 as described above, when the slider 38 is reciprocated, the cutter receiving roller 40 is brought into contact with the upper edge of the perforated cutter 30. , Rolling on this upper edge.

As shown in the figure, the upper edge of the perforated cutter 30 is formed with a blade portion 42 (cutter region) at the center, and a pair of inclined cam portions 44 at both ends.
(Guide member) is formed. These inclined cam parts 4
Nos. 4 each have an ascending gradient toward the side end of the perforated cutter 30, and the level difference with the blade portion 42 increases toward the side end.

When the slider 38 is at one of the left and right stop positions, the cutter receiving roller 40 is at a position where it contacts the inclined cam portion 44 of the perforated cutter 30. In this case, the blade portion 42 and the cutter receiving roller The perforated cutter 30 is pushed down by a level difference between the position of the inclined cam portion 44 with which the 40 comes into contact. On the other hand, when the cutter receiving roller 40 is at a position where it comes into contact with the blade portion 42,
The perforated cutter 30 is raised by the above-described level difference, and the parcel paper P is sandwiched between the cutter 30 and the cutter receiving roller 40.

FIG. 3 shows a state where the parcel sheet P is sandwiched between the cutter receiving roller 40 and the perforated cutter 30 as described above. The cutter receiving roller 40 can partially receive the upper edge of the perforated cutter 30 from the outer peripheral surface, so that the individual blades 46 of the perforated cutter 30 are immersed into the cutter receiving roller 40 by a predetermined depth. can do. Therefore, as shown in the figure, the cutter receiving roller 40 is
, The individual blades 46 bite into the parcel paper P sequentially by the urging force F received by the perforation cutter 30, and intermittently intermittently move on the parcel paper P by a length corresponding to the area of the blade portion 42. A linear hole, that is, a perforation is formed. It should be noted that perforation processing per time is completed when the cutter receiving roller 40 moves on the perforation cutter 30 from one end to the other end.

At this time, when the cutter receiving roller 40 moves on the inclined cam portion 44 toward the outside of the supply line 6, the inclined cam portion 44 relatively guides the movement of the cutter receiving roller 40, and the perforated cutter 30 is moved. Down overall. As a result, the perforated cutter 30 is separated from the parcel paper P, so that the subsequent parcel paper P can be fed out.

Thereafter, when the feeding of the parcel sheet P is stopped in the next cycle, the cutter receiving roller 40 is again turned on.
Start the move. At this time, the cutter receiving roller 40
Moves on the inclined cam portion 44 toward the inside of the supply line 6, the inclined cam portion 44 guides the lifting of the perforated cutter 30 by the urging force of the spring 34, and the perforated cutter 30 is Contact paper P.

Next, referring to FIG. 4, a relative positional relationship between the perforation processing device 20 and the packaging line 4 in the integrated packaging machine is schematically shown. In the figure, when the length per one parcel sheet S and L _1, registration marks described above it is printed on the parcel paper P at a pitch of this length L _1. Perforation forming device 20 is adapted to perform perforation forming each time feeding of parcels paper P is stopped, therefore, would perforation M is also added at a pitch of L _1.

Here, the perforation processing device 20 and the cutter unit 12 are viewed on the supply line 6 in terms of the actual length of the parcel paper P.
Distance L ₂ of is suitably set to perforation M is positioned in the vicinity of the center of the parcel sheet S as shown with. Therefore, the perforations M are processed for each area of the parcel sheet S to be formed, as viewed from the supply line 6 of the parcel paper P.

Referring to FIG. 5, the formed parcel sheet S is shown in detail. As illustrated, perforations M extending in the width direction are added to the individual parcel sheets S, and the length L ₄ of the perforations M is the same as the blade length of the perforation cutter 30 as described above. , Are set slightly shorter than the entire width of the product integrated body Ts. Also,
The supply position of the parcel sheet S by the suction belt 14 is set so that the perforation M is positioned above the reference plane of the packaging line 4 by the height H of the cigarette pack T as shown in FIG. That is, the supply line 6
Above, the distance L ₃ between the reference surface of the packaging line 4 and the perforation processing device 20 is set to a length obtained by adding a height H to a multiple of L _{1 in view} of the actual length of the parcel paper P.

Therefore, when the product aggregate Ts is pushed into the parcel sheet S in the state of FIG. 4, when the body folding is completed, the position of the perforation M of the parcel sheet S is set between the stacking stages of the cigarette pack T. Be positioned. In addition, as is clear from FIG.
s is previously positioned at the center of the parcel sheet S in the width direction.

Referring to FIG. 6, in the completed parcel packaged product PC (with no brand label or the like attached),
The perforations M are positioned between the stacking stages of the packaged cigarette packs T. The seam flap joint is located on the opposite side of the perforation M in FIG. In addition, the perforation processing apparatus 20 of the above-described embodiment is used.
For example, for the perforation M provided by the following, the pitch of the perforation M is 6 mm (open hole length 4.5 mm, unopened length 1.5 m).
m).

Further, the inventors of the present invention conducted a tensile test of the parcel paper P provided with perforations M and confirmed the tensile strength. According to observations made by the inventors, perforation along the fiber direction of the parcel paper P (longitudinal) is more effective than perforation.
Perform perforation in the direction perpendicular to the fiber direction (side view)
It was confirmed that the tensile strength of the parcel paper P was higher. In any case, the strength level of the parcel sheet S is sufficiently ensured in handling the cigarette product during the distribution process, and the parcel sheet S is not undesirably broken during the distribution process.

The above-described perforation processing device 20 only moves the cutter receiving roller 40 including the slider 38 during its operation, and therefore, the inertial mass of the movable portion of the device is reduced. Therefore, the load on the servomotor as a driving source is reduced, and the size of the entire apparatus is reduced. Further, by shortening the time required for moving and stopping the cutter receiving roller 40, it is possible to cope with an increase in the speed of the apparatus, which also contributes to shortening of the packaging cycle time of the entire integrated packaging machine.

The present invention can be implemented in various modifications without being limited to the above-described embodiment. For example,
An operation changeover switch can be connected to the perforation processing device 20, and operation / stop can be selected as necessary. In the above-described embodiment, the inclined cam portion 4
4 is formed integrally with the perforated cutter 30, but a separate inclined cam may be provided.

Further, in the case of the present invention, when changing the length of the perforation to be processed, it is only necessary to replace the perforation cutter 30 with another perforation cutter having a different length of the blade portion 42. . In this respect, in the known device described above, the entire moving unit including the gears and the perforated discs must be replaced, which requires a large labor. Further, in the above-described embodiment, the perforations M are provided one by one for each parcel sheet S. However, for example, the perforation processing apparatuses 20 of the embodiment may be arranged at a plurality of locations on the supply line 6, or By arranging a plurality of perforation cutters 30 in the perforation apparatus 20, a plurality of perforations M can be provided on one parcel sheet S. Further, by changing the settings of the intervals L ₂ and L ₃ in FIG.
Thus, the position of the perforation M can be changed as desired.

In addition, the processing apparatus of the present invention is not limited to parcel paper, but is also suitable for perforation processing of packaging films, package blanks, and the like. Absent.

[0041]

As described above, the packaging material processing apparatus of the present invention (Claim 1) can reduce the load on the driving source for operation, can be downsized, and can operate the packaging machine at high speed. It can fully cope with operation. Further, if the packaging material can be fed out when the perforation processing is completed (claim 2), the supply line is not stagnated.
If perforation processing can be performed repeatedly with the reciprocating motion of the cutter receiving roller (claim 3), the speed of the movement can correspond to the high speed operation of the packaging machine.
Therefore, for example, in a cigarette manufacturing factory, by increasing the operating speed of the packaging machine in synchronization with the high-speed operation of the cigarette manufacturing machine, it is possible to greatly contribute to the improvement of the operation rate of the entire factory.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a packaging process when the processing apparatus of the embodiment is applied to an integrated packaging machine.

FIG. 2 is a diagram showing a configuration of a perforation processing device in detail.

FIG. 3 is a diagram for explaining the operation of the perforation processing device.

FIG. 4 is a model diagram showing a preferred arrangement of a processing device in an integrated packaging machine.

FIG. 5 is a detailed view of a formed parcel sheet.

FIG. 6 is a perspective view showing a parcel packaged product.

[Explanation of symbols]

 Reference Signs List 6 supply line (supply path) 20 perforation processing device 24 reciprocating drive belt 26, 28 toothed pulley 30 perforation cutter 34 spring (supporting means) 40 cutter receiving roller 42 blade portion 44 inclined cam portion (guide member)

Claims (3)

[Claims] 1. A processing device for performing perforation processing on a long packaging material supplied to a packaging section of a packaging machine through a supply path in the middle of the supply path. And a perforated cutter having both ends extending to both sides of the packaging material, and having a cutter area at an edge portion facing the packaging material, and for bringing the perforated cutter close to the supply path. Supporting means for biasing and supporting the supply path so as to be able to approach and separate from the supply path; provided on the opposite side of the perforation cutter with the supply path interposed therebetween; And a cutter receiving roller that moves from one end to the other end of the edge portion in a state where the edge portion is partially received from the outer peripheral surface. Processing equipment. 2. When the cutter receiving roller moves to the outside of the supply path in the area of both ends provided at both ends of the perforated cutter, the movement of the cutter receiving roller is relatively guided. 2. The packaging material processing apparatus according to claim 1, further comprising a guide member for separating said perforated cutter from said packaging material against the urging force of said support means. 3. The guide member further moves the cutter receiving roller closer to the perforated cutter due to the urging force of the supporting means as the cutter receiving roller moves inward from outside the supply path. The packaging material processing apparatus according to claim 2, wherein guidance is provided.