JP6239653B2 - Incision method - Google Patents

Description

The present invention relates to a cut marking method in which a large amount of packaging objects such as beverage cans are packaged together with a pallet using a resin film such as a shrink film.

  Conventionally, transporting a large amount of beverage cans from a beverage can manufacturer to a beverage beverage maker is done by stacking thousands of beverage cans on a pallet in a multi-layered state, and then a resin such as a shrink film or stretch film for each pallet. This is done by using a film package covered with a film.

  Thus, the fork claw of the forklift enters and exits the fork claw insertion slot while breaking the resin film in the fork claw insertion slot covering region during the transportation of the film package. When the fork claw advances and retracts, the resin film is broken and a small film piece is generated, and if this small film piece remains in the fork claw insertion opening, the can beverage manufacturer can open the package when opening the package. Film pieces may soar on site or get mixed in beverage cans.

  Therefore, in order not to generate such a film piece, the resin film in the fork claw insertion opening covering region is cut in a square shape in advance to provide a fork claw insertion opening, or hot air is applied to the resin film to A technique of melting and removing the resin film and opening it is known (see Patent Document 1).

Japanese Patent No. 2523424

  The technique of cutting a resin film in a fork claw insertion opening covering region in a square shape and providing an opening for fork claw insertion as disclosed in Patent Document 1 is a treatment of small film pieces generated after the cutting. Is troublesome.

  On the other hand, the technique of applying hot air to a resin film and melting and removing and opening the resin film in that portion requires a heat source for fusing the resin film.

  In any case, if the fork claw insertion opening is left open in advance, dust or foreign matter can be removed from the opening of the resin film during transport or storage of the package from the beverage can manufacturer to the can beverage manufacturer. May enter the package.

The present invention has such has been made in view of the technical background, it does not occur filmstrip, and dust and foreign matter without requiring a heat source for fusing a resin film hardly invade the packaging body cuts The purpose is to provide an engraving method .

  In order to achieve the above object, the present invention has the following configurations [1] to [5].

  [1] A fork claw insertion guide extending in a horizontal direction in the fork claw insertion port covering region of the resin film, in which a packaging object loaded on a pallet having a fork claw insertion port is covered with a resin film together with the pallet. A package comprising a cut for use.

  [2] After covering the wrapping object loaded on the pallet having the fork claw insertion port with the resin film together with the pallet, the fork claw insertion extending in the horizontal direction into the fork claw insertion port covering region of the resin film A package manufacturing method comprising providing a guide cut.

  [3] The packaging body manufacturing method according to the above item 2, wherein the fork claw insertion guide cut is provided while reducing or eliminating the slack of the resin film in the fork claw insertion port covering region.

  [4] Means for covering an object to be packaged loaded on a pallet having a fork claw insertion slot with a resin film together with the pallet, and a fork claw insertion extending horizontally in the fork claw insertion area covering region of the resin film And a means for providing a guide cut.

  [5] The packaging body manufacturing apparatus according to item 4, further comprising means for reducing or eliminating the looseness of the resin film in the fork claw insertion opening covering region in accordance with the operation of the means for providing the fork claw insertion guide cut. .

  The present invention has the following effects.

  In the invention of [1], when the fork claw insertion guide cut line extending in the horizontal direction is provided in the fork claw insertion port covering region of the resin film, when the fork claw is inserted into the fork claw insertion port, The top and bottom of the fork claw insertion guide cuts of the resin film are only slightly extended by the fork claw, so that the resin film is not cut off, and a small film piece is not generated by being cut off.

  Therefore, when opening the package at the site where the packaging object is used, there is no possibility that a small film piece will fly up and adhere to the packaging object or enter the packaging object.

  In addition, the fork claw insertion guide cutout extending in the horizontal direction is such that the upper and lower sides of the resin film along the cutout are in close contact with each other. Packaging can be realized.

  Furthermore, when the fork claw insertion guide cut is provided, a special heat source for that purpose is not required, so that the energy required for manufacturing can be reduced as much as possible.

  In the invention of [2], after the packaging object loaded on the pallet having the fork claw insertion port is coated with the resin film together with the pallet, the resin film extends horizontally in the fork claw insertion port covering region. Fork claw insertion guide cuts are provided, so that the fork claw insertion guide cuts are surely provided in a predetermined area, and when the fork claw is inserted into the fork claw insertion port covering area, the resin film Can be manufactured only by being pushed into the fork claw insertion slot, and the resin film is not torn and the film piece is not generated.

  In addition, it is possible to manufacture a hygienic package that is difficult for dust and foreign matter to enter.

  In the invention of [3], the fork claw insertion guide cut is provided in the resin film by reducing or eliminating the slack of the resin film in the fork claw insertion port covering region. Even if wrinkles or slacks that are difficult to provide are reduced or eliminated, it becomes easier to provide fork claw insertion guide cuts, and the desired package can be manufactured.

  According to the invention of [4], the fork claw is inserted into the fork claw insertion slot covering area by providing means for providing a fork claw insertion guide cut extending in the horizontal direction in the fork claw insertion slot covering area of the resin film. When the resin film is pushed into the fork claw insertion slot, the resin film is not torn and a film piece is not generated.

  In addition, the fork claw insertion guide notches extending in the horizontal direction are in close contact with the upper and lower sides of the resin film along the notches, so that it is possible to manufacture sanitary packaging in which dust and foreign matter are less likely to enter the package from the notches. .

  In the invention of [5], the fork nail insertion slot is provided with means for reducing or eliminating the slack of the resin film in the fork nail insertion slot covering region in accordance with the operation of the means for providing the fork nail insertion guide cut. Even if wrinkles and slack occur in the resin film in the covering region, wrinkles and slack disappear or become slight, and it is easy to provide fork claw insertion guide cuts, and an expected package can be manufactured.

(A) is a perspective view of a package according to the present invention, and (B) is an enlarged front view of a main part. It is a perspective view in the middle of a fork nail being inserted in the resin film of a fork nail insertion slot covering field. It is a front view of the cutter apparatus of a package body manufacturing apparatus. It is a principal part side view of the cutter apparatus of a package body manufacturing apparatus. It is a side view which shows the state which the means to reduce or eliminate the slack of a resin film contact | abutted to the pallet. It is a side view which shows the state in the middle of the 2nd press-contact body of the means to reduce or eliminate the slack of a resin film. It is a side view which shows the state which the 2nd press-contact body of the means to reduce or eliminate the slack of a resin film has finished falling.

  Embodiment of the package A which concerns on this invention is described concretely, referring drawings.

  FIG. 1 shows the package A in a state where the upper resin film 6 is cut out. As in the conventional package, the package A is a large number of packaging objects stacked in a multi-layered state on the pallet 2. The individual beverage cans 1, 1, 1,... Are shrink-wrapped with the resin film 6 together with the pallet 2.

  In this embodiment, about 400 cans of beverage cans 1 are arranged in each stacked stage, and an interleaf paper 8 is laid on each stage, and an interleaf paper 8 is also provided on the upper surface of the uppermost beverage can 1. The top plate 9 is placed on the interleaving paper 8, and the pallets are bundled together by the PP band 10, and the pallets 2 after being bundled are packaged together by the polyethylene resin film 6.

  In the pallet 2, a plurality of blocks 2c, 2c, 2c are interposed between the upper deck board 2a and the lower deck board 2b, and fork claw insertion openings 4 are formed between the blocks 2c on both ends and the central block 2c. The fork claw insertion opening 4 is also covered with the resin film 6.

  The package A is provided with a fork claw insertion guide cut 7 extending in the horizontal direction in the fork claw insertion port covering region 6 a of the resin film 6.

  The fork claw insertion guide cut 7 extends horizontally from the center in the width direction of the fork claw insertion port 4. When the forklift operator performs an operation of inserting the fork claw 11 into the fork claw insertion port 4, The insertion position is not always constant, and the fork claw insertion opening covering region 6a may be slightly shifted from the center in the width direction. If the length of the fork claw insertion guide cut 7 is shorter than the width of the fork claw 11, the fork claw 11 However, if the fork claw 11 is inserted into a portion where the fork claw insertion guide cut 7 does not exist, the film piece may be broken.

  Considering the circumstances such as this, the length of the fork claw insertion guide cut 7 ranges from 1.8 times the average width of the fork claw 11 of several forklifts to the width of the fork claw insertion port 4 ( In the present embodiment, it is preferably set to 2.1 times.

  Incidentally, since the average width of several types of fork claws 11 of the forklift is 116.5 mm and the width of the fork claw insertion port 4 of the pallet 2 of this embodiment is 252 mm, the length of the fork claw insertion guide notches 7 is as follows. It is set to 220 mm, which is about 1.9 times the average width of the fork claws 11.

  By providing the fork claw insertion guide cut 7, when the fork claw 11 of the forklift is inserted into the fork claw insertion port 4, the fork claw insertion guide cuts 7 of the resin film 6 are vertically moved by the fork claw 11. The resin film 6 is not broken only by being slightly extended, and a small film piece is not generated by being broken.

  Therefore, when the can beverage manufacturer opens the package A at the manufacturing site, there is no possibility that the film piece rises and is not attached to the beverage can 1 or enters the beverage can.

  Further, since the upper and lower sides of the resin film 6 along the fork claw insertion guide cut line 7 extending in the horizontal direction are in close contact with each other, it is difficult for dust and foreign matter to enter the package from the cut line. Packaging can be realized.

  This package A is manufactured by a manufacturing method as described below.

  First, after covering a large number of beverage cans 1, 1... Loaded on the pallet 2 with the resin film 6 in the same manner as a package in which the conventional packaging object is a beverage can, The package A is manufactured by providing a fork claw insertion guide notch 7 extending in the horizontal direction in the fork claw insertion port covering region 6a of the resin film 6, and the fork claw insertion guide is provided. When the cut 7 is provided, it is performed while reducing or eliminating the slack of the resin film 6 of the fork claw insertion opening covering region 6a.

  According to this manufacturing method, since the slackness of the resin film 6 is reduced or eliminated, the fork claw insertion guide cut 7 can be easily provided, and the intended package A can be manufactured.

  This manufacturing method is realized by using the following package manufacturing apparatus M.

  In addition to means for packaging a large number of the beverage cans 1 together with the pallet 2, means for transporting the package A, etc. (the above means are not shown in the drawings), the packaging body manufacturing apparatus M includes the above-mentioned resin film 6. Means 12 for providing fork claw insertion guide cuts extending horizontally in the fork claw insertion slot covering region 6a and means 14 and 16 for reducing or eliminating the looseness of the resin film in the fork claw insertion slot covering region are provided.

  The means 12 for providing the fork claw insertion guide cuts 7 and the means 14 and 16 for reducing or eliminating the slack of the resin film 6 in the fork claw insertion opening covering region 6a are integrally handled in the packaging body manufacturing apparatus M. Since these components operate in conjunction with each other, the portion provided with both means will be referred to as a cutter device C.

  FIG. 3 shows a front view of the cutter device C, and FIGS. 4 to 7 are schematic side views for explaining the operation thereof. 4 to 7 show the relationship between the cutter device C of FIG. 3 and the pallet 2 in order to make the upper deck board 2a and the lower deck board 2b of the pallet thicker than those shown in FIGS. It is drawn as something with.

  The cutter device C includes a cutter 12 (indicated by a one-dot chain line) as a means for providing a fork claw insertion guide cut 7.

  The cutter 12 is always waiting in the cutter device C, and when the means 14, 16 for reducing or eliminating the slackness of the resin film 6 in the fork claw insertion opening covering region 6a reaches a predetermined position, the cutter device The resin film protrudes from the cutter entrance 13 on the C front surface to the outside, and a cut can be formed in the resin film.

  The cutting operation of the fork claw insertion guide notches 7 by the cutter 12 is omitted, but is performed by extruding with an air cylinder, and the thrust force, speed, and the like are appropriately selected.

  The blade length of the cutter 12 corresponds to the length of the fork claw insertion guide cut 7 and ranges from 1.8 times the average width of several types of fork claws 11 to the width of the fork claw insertion port 4 (this embodiment). Is preferably set to 2.1 times).

  Incidentally, since the average width of several types of fork claws 11 of the forklift is 116.5 mm and the width of the fork claw insertion port 4 of the pallet 2 of this embodiment is 252 mm, the blade length of the cutter 12 is the average of the fork claws 11. It is set to 220 mm, which is about 1.9 times the width. A first pressure contact body 14 made of urethane rubber that abuts along the length direction of the end surface of the top deck board 2a of the pallet 2 protrudes across the entire width of the front surface of the cutter device C at the upper front surface of the cutter device C. It is installed.

  Further, a second press contact body support mechanism 20, which will be described later, is provided with a second press contact body 16 made of a soft urethane rubber, which is in contact with the lower surface of the lower deck board 2 b of the pallet 2 along the length direction of the bottom surface of the cutter device C. It is provided so that it can move up and down via.

  The first pressure contact body 14 and the second pressure contact body 16 constitute a means for reducing or eliminating the slackness of the resin film 6 in the fork claw insertion opening covering region 6a.

  As shown in FIG. 3, the second press-contact body 16 has a length that is slightly longer than the lateral width of the front surface of the cutter device C. As shown in FIG. 4, the front end is at the highest position. The front end of the first press contact body 14 protrudes forward and the front end is set to protrude slightly from the front end of the first press contact body 14 even at the lowest position.

  The second press contact body 16 is made of an elastically deformable material, and the front end of the second press contact body 16 projects forward from the front end of the first press contact body 14 so that the first press contact body 14 is the end surface of the upper deck board 2a. As shown in FIG. 5, the front end is in an elastically deformed state in which the front end is pressed against the end surface of the lower deck board 2b and crushed. The operation of the second press contact body 16 will be described later.

  The second press contact body support mechanism 20 includes a pair of left and right brackets 21 and 21 that support the second press contact body 16 from the left and right ends via a core bar 17, and a bracket support member 22 that supports the bracket 21 so as to be movable up and down. The main components are a wire 23 as a bracket suspension member, an upper roller 25 and a lower roller 26 that support the wire 23, and a weight 28 suspended from the other end of the wire 23.

  The diameter of the metal core 17 is 5 mm, and the diameter of the second pressure contact 16 is 15 mm so that the second pressure contact 16 can be smoothly slid while being crimped to the resin film 6 without stretching the resin film 6. Is set.

  The bracket support member 22 is provided with a bracket support groove (not shown) that is inclined forward so that the bracket support member 22 moves away from the pallet 2 that the second press contact body 16 faces as the bracket support member 22 descends from above.

  The forward tilt angle is preferably less than 25 degrees. This is because when the angle is 25 degrees or more, the force pressing the resin film 6 against the end surface of the lower deck board 2b is reduced, and slipping easily occurs.

  Although not shown in the figure, the bracket support member 22 is provided with bracket stoppers (not shown) at the upper end and the lower end so that the bracket 21 does not come out upward or downward from the bracket support member 22. .

  The upper roller 25 and the lower roller 26 are V-groove rollers having V-grooves, and the axis of the upper roller 25 is provided on the pallet 2 side with respect to the axis of the lower roller 26.

  The size and arrangement of the upper roller 25 and the lower roller 26 are not limited to those illustrated in FIGS. 4 to 7, but the vertical movement of the second press contact body 16 can be performed smoothly. Thus, the upper roller 25 is installed above the second pressure contact body 16 at a position where the wire 23 does not interfere with the bracket 21, and the lower roller 26 does not collide with the bracket 21 even if the weight 28 vibrates at the lower limit position. In addition, it is desirable that the first press contact body 14 be installed at a position away from the front end.

  To that effect, when the upper roller 25 is installed at a position away from the front end of the cutting device C, for example, immediately above the lower roller 26, the angle of the wire 23 extending from the second press contact body 14 to the upper roller 25 is horizontal. Since the force that pulls the tip of the second pressure contact body 16 toward the upper roller 25 acts near the state, the vertical movement of the second pressure contact body 16 is hindered, so the axis of the upper roller 25 is It is preferable to be diagonally above the axis of the lower roller 26 and on the front end side of the cutting device C.

  Furthermore, although it is conceivable to use one large roller, in that case, a larger space is required than arranging small rollers above and below, which is not preferable.

  A weight 28 is suspended from the other end of the wire 23. The weight of the weight 28 is set to a weight that maintains a balanced equilibrium state with the second press contact body 16, and the second press contact body 16 descends when a slight force is applied to push the second press contact body 16 downward. The wire is lifted upward by a distance equal to the length of the wire.

  Thus, the operation of the cutter device C will be described. First, when the package A is conveyed forward of the cutter device C by the conveying means, the cutter device C moves so as to approach the package A, Although omitted, the fork claw insertion opening covering region 6a of the resin film 6 is located by a predetermined sensor, and further approaches the package A, and a predetermined cut and cut operation is performed by the cutter 12, which will be described later. Is completed, it is set to move in a direction away from the package A.

  Describing in more detail the predetermined cut marking operation by the cutter device C, as shown in FIG. 5, the cutter device C approaching the package A has the first pressure contact member 14 on the end surface of the first upper deck board 2a. The resin film 6 is sandwiched between the first pressure contact body 14 and the end surface of the first upper surface deck board 2a.

  At this time, as shown in FIG. 5, the second press contact body 16 is in a state where the front end is crushed, and the resin film 6 is sandwiched between the second press contact body 16 and the lower deck board 2b. In the second press contact body 16, since the bracket 21 is supported by the forward inclined bracket support groove of the bracket support member 22, a force for lowering the second press contact body 16 is generated as a reaction as shown by an arrow in FIG. 5. .

  When the second pressure contact body 16 is lowered, the resin film 6 between the second pressure contact body 16 and the lower deck board 2b is sandwiched and pushed downward gradually, and the second pressure contact body 16 finishes dropping. As shown in FIG. 7, the slackness of the resin film 6 is reduced.

  When the second press contact body 16 finishes descending, the cutter 12 projects from the cutter device C toward the fork claw insertion port covering region 6a, cuts into the resin film 6, and a predetermined fork claw insertion guide cut 7 is formed. It is engraved.

  When this engraving is finished, the cutter 12 moves backward and returns into the cutter device C, and the cutter device C moves backward away from the package A.

  By the retreat of the cutter device C, the press contact of the second press contact body 16 to the lower deck board 2b of the pallet 2 is released, so that the force acting in the direction of pushing the second press contact body 16 downward is applied. The second pressure contact body 16 is automatically returned to the highest position in the bracket support member 22 as shown in FIG.

  The packaging body manufacturing apparatus M includes means 14 and 16 for reducing or eliminating the slack of the resin film 6 of the fork claw insertion opening covering region 6a in accordance with the operation of the means 12 for providing the fork claw insertion guide cut 7. Thus, even if wrinkles and slack are generated in the resin film 6 in the fork claw insertion opening covering region 6a, wrinkles and slack are reduced or eliminated. A can be manufactured.

  Further, in the packaging body manufacturing apparatus M of this embodiment, since the means for reducing or eliminating the looseness of the resin film is activated by the weight of the weight 28, the cost for driving the means is not required, and maintenance is easy to perform. .

A ··· Packaging body M ··· Packaging body manufacturing apparatus 1 ··· Beverage can 2 (as packaging object) ··· Pallet 4 ··· Fork claw insertion 6 ··· Resin film 6a ... Fork claw insertion opening covering region 7 ... Fork claw insertion guide cut 12 ... (as means for providing fork claw insertion guide cut) Cutter 14 ... (Resin film slack) The first pressure contact body 16 (which constitutes a means for reducing or eliminating the slackness of the resin film) the second pressure contact body

Claims (2)

Means for covering a wrapping object loaded on a pallet having a fork claw insertion port with a resin film together with the pallet;
Means for providing a fork claw insertion guide cut extending horizontally in the fork claw insertion port covering region of the resin film,
As a means for providing the fork claw insertion guide cut, a cutter is provided inside,
In accordance with the operation of the means for providing the fork claw insertion guide cuts, it comprises means for reducing or eliminating the slack of the resin film in the fork claw insertion port covering region,
The means for reducing or eliminating the slack of the resin film in the fork claw insertion port covering region includes: a first press contact member that contacts the length direction of the upper end surface of the pallet; and a length direction of the lower end surface of the pallet A second press-contacting body that abuts along the line, and an incision marking method by a packaging body manufacturing apparatus comprising:
When the packaging body in which the packaging object is covered with the pallet by the resin film is conveyed, the packaging body manufacturing apparatus moves so as to approach the packaging body, and the first press contact body and the end surface of the pallet The resin film is sandwiched between the second pressure contact body and the second pressure contact body, while sandwiching the resin film between the second pressure contact body and the end surface of the pallet, and gradually pushed downward to loosen the resin film. A fork engraving method characterized in that the fork claw insertion guide incision is formed by performing an incision making operation with the cutter. 2. The cutter according to claim 1 , wherein when the cutting operation by the cutter is finished, the cutter moves back into the packaging body manufacturing apparatus, and the packaging body manufacturing apparatus moves in a direction away from the packaging body. Incision method.

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