JP4152653B2 - Multipack packaging equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multi-pack packaging apparatus that divides and wraps a rigid and self-supporting container such as a round can or bottle filled with beverages such as beer and soft drinks.
[0002]
[Prior art]
For example, what is shown in FIG. 8 (I) and (II) is conventionally known as a multi-pack wrapping apparatus that divides and wraps beer cans that are self-supporting containers. In this multi-pack packaging device, the cans A are continuously conveyed in one direction in two rows by the conveying conveyor 70, and a paper packaging sheet S for subdivided packaging is placed on the two rows of cans A on the leading side. Is continuously supplied so that almost no gap is formed between the packaging sheet S, and the packaging sheet S is bent during the transfer of the packaging sheet S so as to wrap a plurality of cans A. .
[0003]
Here, the packaging sheet S, as shown in FIG. 9 (I), the unit body upper panel P ₁ formed in the packaging sheet S a plurality of cans A (6 cans case of FIG. 9) as one unit Supplied to be supported on the upper surface of U. When the packaging sheet S is bent, the pair of side panels P ₂ and P ₃ connected to both sides of the upper panel P ₁ are bent approximately 90 ° downward as shown in FIG. 9 (II). The bottom panels P ₄ and P ₅ connected to the side panels P ₂ and P ₃ are bent by approximately 90 ° toward the lower surface of the unit body U, and a plurality of plugs connected to the one bottom panel P ₄ are connected. by inserting the tip of the strip a ₁ to cut b ₁ formed on the other of the bottom panel P ₅ engaged, and the engagement piece a2 other formed in bent portions of the insertion pieces a ₁ It is engaged with the inner surface of the bottom panel P ₅ by inserting the provided bottom panel P ₅ notch b _2, as shown in FIG. 9 (III), to hold the state of wrapping the unit body U I have to.
[0004]
In the packaging sheet S, the upper panel P ₁ and the pair of side panels P ₂ and P ₃ , and the pair of side panels P ₂ and P ₃ and the bottom panel P ₄ and P ₅ , respectively. Each of the three cutouts d is provided with an interval substantially equal to the outer diameter of the can A, and the cans A are positioned by fitting a part of the outer periphery at the upper and lower ends of the can A to each cutout d. The can A is prevented from falling off the S.
[0005]
In the divided packaging of cans A as described above, since the transportation of the cans A is continuous transportation in contact with each other, there is no inconvenience that the cans A fall down during transportation, and a plurality of cans A are extremely high. It has the feature that it can be packaged efficiently at a high speed.
[0006]
By the way, in the said multipack packaging apparatus, if there is a position shift in the front-rear direction between the two rows of cans A that are continuously conveyed by the conveyor, the unit body U cannot be packaged by the packaging sheet S. .
[0007]
In order to eliminate such inconvenience, in the multi-pack packaging apparatus, as shown in FIGS. 8 (I) and (II), it is driven synchronously on both sides of the conveying path of the two rows of cans A conveyed by the conveying conveyor 70. A pair of left and right aligning conveyors 71 are arranged, and angle-shaped projections 72 provided on each aligning conveyor 71 and moving in the same direction at the same speed as the cans A are inserted between the cans A before and after the conveying direction. The two rows of cans A are aligned in a state where there is no positional deviation in the front-rear direction.
[0008]
In addition, the packaging sheet S is supplied onto the aligned cans A, and the folding is performed in the process of moving together with the cans A.
[0009]
[Problems to be solved by the invention]
By the way, in the conventionally known multi-pack packaging apparatus, the alignment conveyor 71 for aligning the two rows of cans A is a fixed arrangement, so that the cans A are aligned when the outer diameter size of the cans A is changed. Cannot be packed.
[0010]
An object of the present invention is to provide a multi-pack packaging device that can pack-pack round self-standing containers such as cans having different outer diameter sizes.
[0011]
[Means for Solving the Problems]
In order to solve the above problems, in the invention of this, provided the pair of the alignment conveyor driven synchronously on both sides of the transport path of the self-supporting container double row are continuously transported in one direction by the transport conveyor, Each alignment conveyor has a number of protrusions arranged at equal intervals that move in the same direction at the same speed as the transfer speed of the self-supporting containers, and the protrusions penetrate into the self-supporting containers before and after the transfer direction to form a double-row self-supporting container. Are arranged in a state where there is no deviation in the front-rear direction, and the packaging sheets for subpackaging are continuously supplied onto the aligned double-row self-supporting containers, and the packaging sheets are bent when the packaging sheets are transferred. In the multi-pack wrapping apparatus, wherein the pair of left and right alignment conveyors comprises a plurality of pairs of left and right alignment conveyors having different projection pitches, The alignment conveyor provided with means for allowing replacement in aligned position of the free-standing container, means allowing its replacement is, supports each alignment conveyor by a plate member, each of the sides in the transport path of autonomous container said plate member And a linear guide for slidably guiding the plate body in a direction orthogonal to the transfer direction of the freestanding container, and an alignment conveyor at a position corresponding to the freestanding container. A configuration is adopted in which a positioning projection for positioning the plate body is provided and a fixing means for fixing the plate body positioned by the positioning projection is provided .
[0012]
By configuring as described above, by replacing a plurality of pairs of left and right alignment conveyors, it is possible to align the double-row self-supporting containers having different outer diameter sizes in a state without positional displacement in the front-rear direction. Different self-contained containers can be subdivided.
[0013]
In addition, the plate body that supports the alignment conveyor is placed on the outer edge of the table, and the plate body is guided by the linear guide so that the plate body is pushed toward the transfer path of the self-supporting container, thereby positioning. The alignment conveyor is positioned at a position corresponding to the transfer path of the self-supporting container by the contact with the protrusion. The setting operation of the alignment conveyor is completed by fixing the plate in the positioning state. In addition, by releasing the fixed plate body and pulling out the plate body, the alignment conveyor can be removed from the position corresponding to the transfer path of the self-supporting container, so the replacement of the alignment conveyor can be easily and safely performed manually. It can be performed and can be attached with high accuracy at a position corresponding to the transfer path of the self-supporting container.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, as a self-supporting container, a multi-pack wrapping apparatus is shown in which two types of cans A ₁ and A ₂ having different outer diameter sizes can be packaged.
[0015]
Here, FIG. 7 (I) shows a packaging sheet S1 for packaging low diameter cans A ₁ a small height of the outside diameter. The package sheet S1 of the small-diameter cans A for ₁ is the same as the packaging sheet S shown in FIG. 9 (I), the same portions will not be described are denoted by the same reference numerals.
[0016]
On the other hand, FIG. 7 (II) show the packaging sheet S ₂ of high height greater outer diameter size large径缶A for _2. With the size of each panel is different from the packaging sheet _{S 1} shown in the packaging sheet _{S 2} and FIG. 7 (I), the inner surface of the side panel _P 2, _{P 3} at both ends of the pair of side panels _P 2, _{P 3} Folded panel P ₆ that is folded so as to be overlapped, engagement piece e is provided at the connecting portion of folded panel P ₆ and top panel P ₁ , and the lower ends of side panels P ₂ and P ₃ The difference is that the pitch of the notches d formed in is increased. For this reason, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.
[0017]
Incidentally, in the packaging sheet S2 in FIG. 7 (II), when folding the folding panel P ₆ to a position overlapping the inner surface of each side panel P _2, P _3, engaging pieces e is the top panel P ₁ ends and side panels P _2, the corner portions and side panel P ₂ formed by the ends of the P _3, P ₃ and the bottom panel P _4, the can a to stand and is packaged so as to cover the corner portions formed at both ends of the P _{5 2} is prevented from falling off. Therefore, the packaging sheet S ₂ shown in FIG. 7 (II), the upper portion of the notch portion d of Figure 7 the side panels P ₂ of the packaging sheet S ₁ shown in _(I), P ₃ is omitted.
[0018]
Any of the can of the small-diameter cans A ₁ and large径缶A ₂ also has a lower surface by conveyor 1 shown in Figures 1 and 2 are continuously conveyed in a state of being supported two rows.
[0019]
The conveyor 1 is composed of two parallel belt conveyors that are driven in synchronization. 1 shows a state in which the conveyor 1 is continuously transported small-diameter cans A ₁ in the form of two rows, in the conveying direction of the small-diameter cans A ₁ is the center position of the transport path of the small-diameter cans A ₁ A long strip-shaped center guide 3 is provided. The center guide 3 guides the movement of the small-diameter cans A ₁ in each row and prevents the small-diameter cans A _{1 in} each row from moving inward in the width direction of the transport conveyor 1.
[0020]
On both sides of the transport path of the small-diameter cans A ₁ pair of left and right conveyor units U ₁ is provided. Conveyor unit U ₁ is the one for the small-diameter cans A _1, 2 types of conveyor units U ₂ for large径缶A ₂ shown in FIG. 6 are prepared.
[0021]
Each of the conveyor units U ₁ and U _{2 includes} an alignment conveyor 10 that aligns two rows of cans and a housing 20 that supports the alignment conveyor 10.
[0022]
The alignment conveyor 10 spans a timing belt 13 between a pair of toothed pulleys 11, 12, and mountain-shaped protrusions 14 are provided on the timing belt 13 at equal intervals.
[0023]
The pitch P ₁ of the protrusions 14 of the alignment conveyor 10 in the small-diameter can conveyor unit U ₁ is substantially equal to the outer diameter size of the small-diameter can A ₁ , while the pitch of the protrusions 14 of the alignment conveyor 10 in the large-diameter can conveyor unit U ₂ . P ₂ is approximately equal to the outside diameter of the large径缶a _2. Both side surfaces of these protrusions 14 are arcuate surfaces 14a along the outer periphery of the corresponding can.
[0024]
As shown in FIGS. 2 to 4, the housing 20 has two plate bodies 21 and 22 at the top and bottom, and the pulley shafts of the toothed pulleys 11 and 12 in the alignment conveyor 10 by the upper and lower plate bodies 21 and 22. 11a and 12a are supported rotatably. The lower plate 22 is provided with a plurality of positioning pin holes 23 and a plurality of screw holes 24. In addition, three guide protrusions 25 are provided on the lower surface of the lower plate 22 at both ends and the center in the length direction.
[0025]
The housing 20 is provided with a plurality of handles 26 on the outer periphery thereof.
[0026]
As shown in FIGS. 3 and 4, on both sides of the conveyor 1, there are tables 30 that support the conveyor units U ₁ and U ₂ , a fixed base 31 below the tables 30, and outwards of the tables 30. An auxiliary table 32 is provided.
[0027]
As shown in FIGS. 2 and 4, the table 30 is moved up and down by the cylinder 33 supported by the fixed base 31 so that the upper surface is held at substantially the same height as the upper surface of the auxiliary table 32 at the lift stop position. It has become. A pair of protrusions 34 as linear guides are provided at both ends of the upper surface of the table 30 in a direction orthogonal to the direction in which the cans A ₁ and A ₂ are transferred. A plurality of positioning protrusions 35 are provided on the upper surface of the table 30. The pair of protrusions 34 are provided on the guide protrusions provided at both ends of the lower surface of the conveyor units U ₁ and U ₂ when the conveyor units U ₁ and U ₂ are pushed onto the table 30 from the auxiliary table 32. Guide 25 moves.
[0028]
The conveyor units U ₁ and U ₂ pushed onto the table 30 are positioned by the contact of the side surface of the guide protrusion 25 with the protrusion 34 and the contact of the end surface of the guide protrusion 25 with the positioning protrusion 35.
[0029]
On the upper surface of the fixing base 31, positioning pins 36 are supported at positions corresponding to the pin holes 23 of the conveyor units U ₁ and U ₂ positioned on the table 30, and a support for supporting the lower surfaces of the conveyor units U ₁ and U ₂ is supported. The positioning pin 36 and the support member 37 can be inserted into a through hole 38 formed in the table 30 so that the table 30 is not hindered from moving up and down. .
[0030]
By insertion to said positioning pin 36 is a conveyor unit _U 1, _{U 2} of the pin holes 23, positioning the conveyor unit _U 1, _{U 2} in the longitudinal and lateral directions, while the support member 37 is a conveyor unit _U 1, U is adapted to position the position (alignment position) facing the outer portion of the small-diameter cans are conveyed a ₁ or larger径缶a ₂ by the conveyor 1 _2.
[0031]
The conveyor units U ₁ and U ₂ positioned at the alignment position are fixed by tightening a set screw 39 as a fixing means to be screwed into the screw hole 24 from below the fixing base 31.
[0032]
As shown in FIG. 3, the alignment conveyors 10 of the conveyor units U ₁ and U ₂ positioned at the alignment position are driven by the rotation of the drive shaft 40 that is rotatably supported by the fixed base 31.
[0033]
The drive shaft 40 is provided at a position corresponding to one of the toothed pulleys 11 of the alignment conveyor 10, and the pulley shaft 11 a of the toothed pulley 11 and the drive shaft 40 are detachable by an Oldham coupling 50.
[0034]
The drive shaft 40 is provided corresponding to each of the pair of left and right conveyor units U ₁ and U ₂ , and the two drive shafts 40 are rotated synchronously. Therefore, the alignment conveyor 10 pair positioned in aligned position by the rotation of the drive shaft 40 is driven synchronously, the projection 14 of each alignment conveyor 10 and the conveying direction of the small-diameter cans A ₁ or larger径缶A ₂ It moves in the direction at the same speed. At this time, the protrusions 14 of the respective alignment conveyors 10 are moved in the front-rear direction without any deviation.
[0035]
Multipack packaging apparatus shown in the embodiment consists structure described above, as shown in FIGS. 1 to 3, in a state in which the conveyor unit U ₁ small-diameter cans aligned position is positioned, by the drive shaft 40 synchronously driven pair of left and right alignment conveyor 10, in a driving state, by continuously transporting the small diameter cans a ₁ in the form of two rows by the conveyor 1, the projections 14 of the pair of the alignment conveyor 10 columns It is inserted between the small-diameter cans a ₁ of each column diameter cans a ₁ of are aligned in a state where the small-diameter cans a ₁ in the conveying direction before and after to each other in contact.
[0036]
At this time, the pair of left and right alignment conveyor 10, since the projection 14 is driven synchronously with no positional deviation in the longitudinal, small diameter cans A ₁ of the two rows are aligned in the absence of the positional deviation in the longitudinal, It is conveyed along the center guide 3 in the aligned state.
[0037]
Moving the small-diameter cans A ₁ alignment state passes through the distal end of the center guide 3, as shown in FIG. 1, the small-diameter cans A ₁ along the tapered guide surface 27 formed in the housing 20 of the conveyor units U ₁ and, the small-diameter cans a ₁ of two rows by the guide surface 27 is in contact each other is attracted inward in the width direction of the conveying surface of the conveyor 1 is continuously transported in one direction while maintaining the contact state .
[0038]
As described above, the small-diameter cans A ₁ of two rows that are continuously conveyed are aligned, the packaging sheet S ₁ of the small diameter cans packaged is fed continuously onto the small-diameter cans A ₁ which is the aligned , small-diameter cans a ₁ of a plurality (six in the embodiment) by folding of the packaging sheet S ₁ is being subdivided packaged.
[0039]
When cans to be packaged is changed from the small-diameter cans A ₁ to a large径缶A _2, replacing the conveyor unit U ₁ small-diameter cans to the conveyor unit U ₂ for a large径缶.
[0040]
In the replacement, the set screw 39 shown in FIG. 2 is loosened, and then the table 30 is raised by the operation of the cylinder 33. As the table 30 rises, the housing 20 moves away from the support member 37, and the pin hole 23 is detached from the positioning pin 36. At the position where the table 30 is raised and stopped, as shown in FIG. It is held at substantially the same height as the upper surface of the table 32. Therefore, the conveyor unit U ₁ can be removed from the auxiliary table 32 by holding the handle 26 and pulling the small-diameter can conveyor unit U ₁ toward the auxiliary table 32.
[0041]
After removing the conveyor unit U ₁ from on the auxiliary table 32, the on the auxiliary table 32 large径缶conveyor unit U ₂ is placed, the lower surface of the large径缶conveyor unit U ₂ guide projection 25 of the When side pushes in a direction perpendicular to the transport direction of the can a ₂ in the conveyor unit U ₂ for a large径缶so as to be guided by the projecting portion 34 on the table 30 table 30 above, the leading edge in the moving direction of the protrusion 34 The end surface of the large-diameter can abut a positioning protrusion 35 provided on the table 30, and the large-diameter can conveyor unit U ₂ is positioned on the table 30 by the abutment.
[0042]
After positioning the large-diameter can conveyor unit U _{2, when} the table 30 is lowered by operating the cylinder 33, the positioning pin 36 is inserted into the pin hole 23 of the large-diameter can conveyor unit U ₂ , and the support member 37 increases the diameter. cans conveyor unit U ₂ is supported, the conveyor unit U ₂ is for a large径缶is disposed aligned position. At that time, the Oldham coupling 50 is in a connected state, and the driving shaft 40 and the pulley shaft 11 a of the one toothed pulley 11 are coupled via the Oldham coupling 50.
[0043]
Table 30 stops further downward from the state in which the conveyor unit U ₂ for a large径缶disposed aligned position. After lowering stop of the table 30, by tightening by screwing from below the fixing table 31 and set screw 39 into the screw hole 24, the conveyor unit U ₂ is for a large径缶Like the conveyor unit U ₂ for small cans in FIG It is fixed at the aligned position, and the conveyor unit replacement operation is completed. Therefore, by operating the alignment conveyor 10 of the large-diameter can conveyor unit U ₂ , the two rows of large-diameter cans A ₂ conveyed by the conveyor 1 are aligned in a state where there is no positional deviation in the front-rear direction. Can do.
[0044]
In this way, by changing the two pairs of left and right conveyor units U ₁ and U ₂ for small-diameter cans and large-diameter cans, cans having different outer diameter sizes can be aligned in a state without positional deviation in the front-rear direction. It is possible to divide and package two types of cans having different outer diameter sizes.
[0045]
In the embodiment, a case of aligning the two cans of smaller diameter cans A ₁ large径缶A ₂ has been described as an example, to prepare a conveyor unit having three or more types of alignment conveyor different pitches of the protrusions 14 Thus, three or more types of cans may be arranged.
[0046]
In the embodiment, the table 30 can be raised and lowered. However, the table 30 may be fixedly arranged at the position (lowering position) shown in FIG. In this case, the auxiliary table 32 is held at the same height as the fixed table 30.
[0047]
By providing tables 30 on both sides of the can transfer path, and by allowing the plate bodies 21 and 22 supporting the alignment conveyor 10 to be pushed in and pulled out by the tables 30, the replacement of the alignment conveyor 10 can be easily done manually. In addition, since the guide 34 is guided by the protruding portion 34 as a linear guide and positioned by the positioning projection 35, the alignment conveyor 10 can be set at the alignment position with high accuracy.
[0048]
【The invention's effect】
As described above, in the present invention, a plurality of pairs of left and right alignment conveyors having different pitches for can alignment projections are replaced to be positioned at the alignment position of the self-supporting containers. These self-supporting containers can be aligned in a state where there is no positional shift in the front-rear direction, and several kinds of self-supporting containers having different outer diameter sizes can be packaged by a single multipack packaging apparatus.
[0049]
Moreover, the replacement of Aligning conveyor easily by hand, and it is possible to safely perform and can be set with high accuracy alignment position.
[Brief description of the drawings]
FIG. 1 is a partially cutaway plan view showing an embodiment of a multipack packaging apparatus according to the present invention. FIG. 2 is a cross-sectional view taken along line II-II in FIG. Cross-sectional view taken along line IV-IV in FIG. 1 FIG. 5 Cross-sectional view in a state where the table shown in FIG. 2 is raised FIG. 6 shows a conveyor unit for large-diameter cans parts cutaway plan view and FIG. 7 (I), (II) is a plan view showing respective examples of the package sheet 8 (I) is a plan view showing an outline of a conventional multi-pack packaging device, (II) is Front view [Fig. 9] (I), ( II ) and ( III ) are perspective views showing stepwise packaging of cans [Explanation of symbols]
A1 Small diameter can A2 Large diameter cans S1 and S2 Packaging sheet 1 Conveyor 10 Alignment conveyor 14 Protrusion 30 Table 34 Protruding part 35 Positioning protrusion

Claims (1)

A pair of left and right alignment conveyors that are driven synchronously on both sides of the transfer path of the double-row free-standing containers that are continuously transferred in one direction by the transfer conveyor are provided, and each alignment conveyor is in the same direction at the same speed as the transfer speed of the free-standing containers. A plurality of protrusions arranged at equal intervals that move in the same direction, and the protrusions penetrate into the self-supporting containers in the front-rear direction and align the double-row self-supporting containers in the front-rear direction without any deviation. Multi-pack packaging device that continuously supplies packaging sheets for sub-packaging on a double-row free-standing container, and wraps the free-standing containers by folding the packaging sheet when the packaging sheet is transferred The pair of left and right alignment conveyors comprises a plurality of pairs of left and right alignment conveyors having different protrusion pitches, and each pair of left and right alignment conveyors can be replaced with the alignment position of the self-supporting container. Means to provided means allowing its replacement is, supports each alignment conveyor by a plate member, a table for supporting slidably the plate body is provided on each of both sides in the transport path of the self-supporting container, the table There are provided a linear guide for slidably guiding the plate body in a direction perpendicular to the transfer direction of the self-supporting container, and a positioning protrusion for positioning the plate body at a position corresponding to the self-contained container. A multi-pack packaging apparatus comprising a fixing means for fixing a plate body positioned by positioning protrusions .

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