JP3437792B2 - Packaging sheet feeding device - Google Patents

Description

BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention is, in the supply process of the package sheet fed to the packaging machine, for the supply apparatus for performing perforation processing on the package sheet. 2. Related Art Perforated packaging sheets
DOO, since it is possible to facilitate the opening work of the finished package, for example, 2-stack of such cigarette pack
It is also used to package product stacks in bulk. For example, in Japanese Patent Application Laid-Open No. Hei 10-230552, a group of cigarette packs is packaged collectively.
Perforated rows, ie, perforations, are added to the web (packaging material) for the wrapping sheet , thereby providing a perforated package.
Equipment is disclosed for supplying instrumentation sheet. Perforation forming apparatus of this known device, e Bei perforations disk having a perforating blade on the outer circumference, which perforations disc while giving a rotation to the drilling disk across the web, processing the perforations in the web It has become. [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 perforation unit including the gear and the rotation shaft for rotating the perforated disk 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. Also wrap
A sewing machine for the packaging sheet to facilitate opening
The eyes are positioned between the product stacks, but this positioning
It is desired to develop a device that also takes account of the above. [0007] The present invention has been made in view of the above-described circumstances, and has as its object the purpose of a punching unit such as a punching unit.
The movable portion without upsizing suitable good in the speed of operation, And
Te, packaging Sea in consideration of the perforations of the positioning in the packaged goods
To provide a supply device for the data. Means for Solving the Problems The provision of the packaging sheet of the present invention is provided.
The feeding device (Claim 1) is a two-stage stack fed on a reference surface.
First, when receiving the product aggregate with the packaging sheet,
After folding the packaging sheet into a U-shape around the product stack,
A packaging machine that wraps product stacks with packaging sheets
Covers packaging lines. The supply device according to claim 1 is a package.
Supply long packaging material that becomes a packaging sheet to the line
Supply path, and the packaging sheet provided in the supply path
To form perforations at intervals equal to the length of the
It is installed downstream of the machine and the processing machine, cuts the packaging material, and
Cutter uni for forming packaging sheets with perforations
And a computer. Then, the processing machine traverses the supply path
Cut and arranged on both sides of the packaging material, on the supply path side
A part of the edge of which forms the perforation in the packaging material
Perforated cutter formed as
While supporting the perforated cutter freely,
Support means for pressing and urging toward the path, and
A pressurized and provided on the opposite side of the perforated cutter
With the edge of the perforated cutter partially received
It has an outer peripheral surface to stop, along the edge of the perforation cutter
A cutter receiving roller that can reciprocate between both ends and a perforation
Each is provided at both ends of the edge of the cutter,
When the cutter receiving roller moves from the blade side on the end,
The perforated cutter is separated from the packaging material against the urging force.
And an inclined cam portion. Furthermore, the processing equipment is supplied
Integer of the length of the packaging sheet in terms of the length of the packaging material on the route
Double the reference height of the product assembly plus the height of one step
It is arranged at a distance from. According to the above-described processing device of the supply device, the edge thereof is pressed against the cutter receiving roller by the urging force applied to the perforated cutter. Therefore, the cutter receiving roller moves the blade through the wrapping material during the moving process.
Roll over the part . Such rolling of the cutter receiving roller causes the blade portion of the perforated cutter to bite into the packaging material, and forms a perforation by the length of the blade portion in the transverse direction of the packaging material. According to the processing machine of the present invention , the perforation
When the cutter receiving roller moves on the inclined cam portion after the formation , the inclined cam portion separates the perforated cutter from the packaging material against the above-mentioned urging force. In this case, when the cutter receiving roller stops moving on the inclined cam portion , the perforated cutter has already been separated from the packaging material, so that the packaging material can be fed out immediately thereafter. Furthermore, mosquito Tsu inner data receiving roller from outside supply path, that is, when moving toward the edge portion from the inclined cam portion, the inclined cam portion for packaging, the perforation cutter by urging pressure to allow a proximity. 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. And the processing machine is the distance described above from the reference plane
Because they are spaced apart, they are supplied to the packaging line
The perforation of the packaging sheet is one level from the reference surface
It is positioned at the height position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A packaging sheet supply apparatus according to the present invention will be described below with reference to an embodiment. FIG. 1 schematically shows a process of stacking and packing cigarette packs by a stacking and packaging machine. This stacking and packaging machine is provided with a transport line 2 for transporting soft cigarette packs T in which, for example, 20 cigarettes are packed in a stack of two, and a packaging line 4 disposed above the transport line 2. The packing line 4 extends from the vicinity of the end of the transport line 2 in a direction orthogonal to 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 defined below the cutter unit 12, and this sheet supply surface is 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 as the vehicle travels. 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. [0018] As is known, the feed roller 8 described above, the suction belt 14, the elevator 16 and the pusher 18 is operated in conjunction with each other in accordance with the operating cycle of the integrated packaging machine. That is, when the feed roller 8 feeds the parcel sheet P by a predetermined length and stops, the cutter unit 12 operates at that timing, and cuts the parcel sheet P 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. The obtained parcel packages PC is label stuck to view the cigarette brands on both sides at the more further Engineering after packaging line 4, is finally boxed. In the packaging process shown in FIG. 1, a processing device, that is, a perforation processing device 20 of the embodiment is disposed in the middle of the supply line 6 for the parcel paper P. Details are shown in FIG. FIG.
2 shows an internal configuration of the perforation processing device 20. 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 outer peripheral surface of the cutter receiving roller 40 is an upper edge of the perforation cutter 30 can be partially accepted put, therefore, the individual blades 46 of the perforation cutter 30, a predetermined depth cutter receiving roller 40 You can be immersed in. Accordingly, when the cutter receiving roller 40 rolls on the upper edge of the perforated cutter 30 as shown in the drawing, the individual blades 46 sequentially bite into the parcel paper P due to the urging force F received by the perforated cutter 30, and the blade portion 42 The intermittent linear holes, that is, perforations, are formed in the parcel paper P by a length corresponding to the area of. 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
When but moves toward the upper inclined cam portion 44 on the inner side of the supply line 6, along with the movement, the raising of the inclined cam portion 44 is perforated cutter 30 Ri by the biasing force of the scan purine <br/> grayed 34
Then , the perforated cutter 30 is brought into contact with the parcel 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 parcel paper P on the supply line 6
Perforation processing device 20 and cutter unit 1 in the actual length of
The interval L2 between the _two is appropriately set so that the perforation M is located near the center of the parcel sheet S as shown in the figure. 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, on the supply line 6
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 in the above. 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 the observations of the inventors, perforation along the fiber direction of the parcel paper P (longitudinal stitching)
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. As described above, the packaging sheet of the present invention
The supply device (Claim 1) has a small load on a driving source for operating the processing machine, can be downsized, and
It can fully cope with high-speed operation of the packaging machine. Also, when the perforation processing is completed, it is possible to feed out the packaging material.
Because, without causing stagnate the supply line, also due to the reciprocation of the cutter receiving roller, Runode can be performed repeatedly perforation forming, for high-speed operation of the packaging machine by speeding the movement be able to. In addition, supply
Just by setting the position of the processing machine on the road,
When the product stack is wrapped in a packaging sheet, the packaging sheet
Are located between the upper and lower product rows. 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. [Description of Signs] 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 section 44 Inclined cam section (guide) Element)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-226899 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65B 61/18 B65B 19/02 B65B 41 / 00 B26D 3/08 B26F 1/18

Claims (1)

(57) [Claims] [Claim 1] A two-tiered product collection supplied on a reference plane
When receiving the stack with the packaging sheet, first,
After the sheet is folded in a U-shape around the product stack,
Wrap the product stack with the packaging sheet
A long package that serves as the packaging sheet toward the packaging line for a packaging machine packaging line.
A supply path for supplying the material, provided in the supply path,
The packing material has an interval corresponding to the length of the packing sheet.
Processing machine to form a perforation, and downstream of the processing machine
Provided, cutting the packaging material, individually having perforations
Provided with a cutter unit forming a folded packaging sheet
In the sheet supply device, the processing device extends across both sides of the packaging material across the supply path.
And a part of the edge on the supply path side is the packaging material.
A perforation cutter formed as a blade portion forming the perforation, and the perforation cutter being freely movable toward and away from the supply path.
While supporting said a <br/> supporting means for pressing urged toward the feed path, said across the supply path on the opposite side of the perforation cutter, wherein the perforation cutter is pressed and urged Edge
Has an outer peripheral surface that receives the part in a partially received state.
And between both ends of the perforated cutter along the edge
A reciprocable cutter receiving roller, it at both ends of the edge in the perforation cutter
The cutter receiving roller is provided on each of the ends.
When moving from the blade portion side, against the pressing urging force
Inclined cutter for separating the perforated cutter from the packaging material
And the processing unit includes a packaging member, as viewed in a length of the packaging material on the supply path.
Add the height of the product stack to the integral multiple of the length of the product stack.
Is placed away from the reference plane by the given distance.
An apparatus for supplying a packaging sheet, comprising: