JP7318957B2 - Band wrapping device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band wrapping apparatus for wrapping and wrapping stacked containers such as natto containers with a band sheet.

Japanese Laid-Open Patent Publication No. 2002-100003 proposes a band wrapping apparatus that wraps and wraps a band sheet around a container in which a plurality of food containers filled with natto (fermented soybeans) are stacked. The banding packaging apparatus disclosed in Patent Document 1 places stacked containers on support rails and conveys them at predetermined intervals, and a sheet-like band sheet obtained by cutting a continuous film is attached to the top surface of the container. When the belt sheet is advanced together with the container, the extending portions of the belt sheet extending left and right from the top surface of the container are guided by the inclined folding guides and folded along the side of the container. ing. Then, the folded ends of the band sheet are folded so as to overlap with each other at the bottom of the container, and the overlapping portions of the band sheet are adhered.

Japanese Patent No. 3718130

In the band-wrapping packaging apparatus disclosed in Patent Document 1, the stacked containers are continuously conveyed while the band sheet is wrapped around and adhered. can be set relatively high. However, since the belt sheet obtained by cutting the continuous film into predetermined dimensions is individually wrapped over the container being transported, it is wound and wrapped for band wrapping. There is a problem that the cut band sheet cannot be conveyed properly, and the winding position of the band sheet around the container is shifted, making it impossible to carry out good band wrapping.

SUMMARY OF THE INVENTION An object of the present invention is to provide a banding packaging apparatus capable of stably performing banding processing at high speed.

The banding packaging device of the invention according to claim 1 of the present application is
A band wrapping packaging device for winding and bundling a band sheet (11) around stacked containers (10),
a sheet transport conveyor (12) for adsorbing and transporting the strip sheet (11) so as to line up in the transport direction of the strip sheet (11);
a container transport conveyor (15) disposed on the side of the sheet transport conveyor (12) capable of supporting and transporting the containers (10) at predetermined intervals in the transport direction of the containers (10);
At least the number of strip sheets (11) corresponding to the plurality of containers (10) being conveyed by the container conveying conveyor (15), which are adsorbed to the sheet conveying conveyor (12), are picked up by suction, and the container conveying conveyor (11) is picked up. In (15), the belt sheet (11) moved to the top surface of the plurality of containers (10) being conveyed is moved so that both edges (11a, 11b) of the belt sheet (11) are positioned to the sides of the container (10). a transfer means (16) that is pushed against the top surface of the container (10) in an extended state and moves together with the container (10);
Both edges (11a, 11b) of the belt sheet (11) pressed against the top surface of the container (10) being conveyed by the container conveyer (15) are folded along both side surfaces of the container (10). a folding means (38) that moves with the container (10) to lower it;
Bottom folding means (42, 42) for folding the both edge portions (11a, 11b) folded down along the side surfaces of the container (10) onto the bottom surface of the container (10) being conveyed on the container conveyer (15); 43) and
a sticking means (54) for sticking the overlapped portion of the band sheet (11) folded by the bottom folding means (42, 43) while the container (10) is being transported on the container transport conveyor (15); , is provided.
According to the invention according to claim 1, a plurality of band sheets can be temporarily pulled out and collected from the sheet conveying conveyor, and can be transferred and packaged on the top surface of a plurality of containers being conveyed. The throughput per hour can be improved.

In the invention according to claim 2, a sheet supply means (14) for placing and transferring the band sheet (11) on the sheet conveyer (12);
a detecting means (28) for detecting the container (10) transported by the container transport conveyor (15),
The sheet supply means (14) receives the belt sheet (11) on the sheet transport conveyor (15) at the transport interval of the container (10) on the container transport conveyor (15) detected by the detection means (28). It is characterized in that it is configured to pass
According to the invention of claim 2, since the belt sheet is transferred from the sheet supplying means to the sheet conveying conveyor at the same interval as the container conveying interval detected by the detecting means, the band sheet is supplied to the container conveying conveyor. To efficiently transfer a band sheet to a container without sending the band sheet to a sheet conveyer for the position of the container to which the band sheet is not supplied even when the container is not supplied to the position where the band sheet should be transferred. be able to.

In the invention according to claim 3, the crease forming crease of the belt sheet (11) that is folded along the side surface of the container (10) is formed by the time the belt sheet (11) is transferred to the sheet transport conveyor (12). It is characterized by having creasing means (21) for attaching (20).
According to the third aspect of the invention, since the edge of the band sheet transferred to the top surface of the container can be folded down along the creases for the crease, the band sheet can be loosened along the side surface of the container. It can be wound well without

In the invention according to claim 4, before the both edges (11a, 11b) of the band sheet (11) folded down on the side surface of the container (10) are folded on the bottom surface of the container (10), An air ejection means (51) is provided for ejecting compressed air from the outer side to one edge portion (11a) overlapping the inner side to move the edge portion (11a) toward the bottom surface.
According to the invention of claim 4, since one of the edge portions overlapping inwardly on the bottom surface is displaced to the bottom surface side of the container by the compressed air, when the edge portion of the band sheet is folded over by the bottom folding means, the overlapped portion can be removed. It is possible to perform folding smoothly without disturbing the overlapping state such as folding or shifting of position.

In the invention according to claim 5, at the end of the transport of the container transport conveyor (15), the container (1) is placed on the mounting piece (27a) of the container transport conveyor (15) and transported while being vertically compressed. 10) from the outside of the band sheet (11), the container (10) is nipped and pulled downstream at a speed higher than the speed of the container transport conveyor (15), and placed on the mounting piece (27a). It is characterized by providing a carrying-out means (55) for extracting the container (10).
According to the fifth aspect of the invention, the mounting piece is pulled out from the bottom surface of the container that is vertically compressed and banded, so that the contracted container expands and the band sheet wrapped around the container is stretched to the container. It can be adhered without looseness. In addition, since the carrying-out means pinches and carries out the container together with the belt sheet around it, the position of the belt sheet does not shift when the mounting piece is pulled out.

In the invention according to claim 6, the transfer means (16) is provided with a plurality of suction heads (29) for sucking and picking up the plurality of band sheets (11) being conveyed from the sheet conveyer (12). Characterized by
According to the sixth aspect of the present invention, the cycle time can be shortened, and the suction head can follow the feed of the band sheets during transportation, so that a plurality of band sheets can be collectively sucked and picked up. , the band sheet can be properly picked up from the sheet conveyer without changing the positional deviation or placement direction of each band sheet. In addition, since a plurality of suction heads are provided, the weight of each suction head can be reduced, and high-speed processing can be handled.

In the seventh aspect of the invention, the adhering means (54) are arranged at the same interval as the interval at which the container (10) can be supported and conveyed by the container conveyer (15). ) and a plurality of adhering portions (54a) movable downstream.
According to the invention of claim 7, since the overlapping portions of the band sheets are adhered at once by the plurality of adhering portions following the transport of the container, the overlapping portions of the band sheets can be adhered satisfactorily. .

In the eighth aspect of the invention, the folding means (38) folds the edge portions (11a, 11b) of the band sheet (11) pressed against the top surface of the container (10) into the container (10). It is characterized in that folding members (41a) for folding down along both side surfaces are provided on the transfer means (16) so as to be vertically movable.
According to the eighth aspect of the invention, the band sheet can be satisfactorily folded downward with a simple configuration.

According to the present invention, the band sheets are supplied to a plurality of containers at once, and the band sheets are folded along the outer periphery of the containers while moving in the conveying direction in synchronization with the conveying speed of the container conveyer, thereby improving throughput. can be greatly improved, and the container can be stably banded and wrapped.

It is a schematic side view which shows a banding packaging apparatus. It is the schematic which looked at the banding packaging apparatus from the conveyance direction downstream of a sheet conveyance conveyor. FIG. 4 is a schematic plan view showing a sheet transport conveyor and a container transport conveyor; FIG. 2 is a schematic view of a main part of a sheet conveyer and transfer means, viewed from the conveying direction downstream side of the sheet conveyer; FIG. 3 is a schematic view of the main parts of the container transport conveyor, the folding means, the bottom folding means, and the sticking device as viewed from the downstream side in the transport direction of the container transport conveyor. FIG. 4 is a schematic plan view of the essential parts showing a container transport conveyor, bottom folding means, and a sticking device; FIG. 4 is a schematic plan view of a principal part showing a pressing member; It is a principal part schematic plan view which shows a carrying out means.

BEST MODE FOR CARRYING OUT THE INVENTION Next, preferred embodiments of the strap wrapping apparatus according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1, 2, and 5, the band wrapping apparatus of the embodiment has a band sheet 11 to be wrapped around a container 10 (hereinafter referred to as a container) in which a plurality of containers are stacked. A sheet conveying conveyor 12 sucks and conveys so as to line up in the conveying direction. A sheet supply means 14 for placing and delivering the container 10 on a conveying conveyor 12; a transferring means 16 having a suction head 29 for sucking and collectively picking up a plurality of band sheets 11 sent and sucked and transferring the sucked band sheets 11 to the top surface of the corresponding container 10, respectively; . In addition, the band sheet 11 provided on the suction head 29 and transferred to the top surface of the container 10 by the suction head 29 and pressed is folded down on both side surfaces (left and right side surfaces) of the container 10 along the conveying direction. Folding means 38, Bottom folding means 42, 43 for folding both (left and right) edge portions 11a, 11b of the belt sheet 11 folded down along the left and right side surfaces of the container 10 to the bottom surface of the container 10, Adhering means 54 for adhering by welding overlapping portions (overlapping portions) of the band sheets 11 overlapped on the bottom surface of the container 10 by the bottom folding means 42 and 43 are provided. The suction head 29 , bottom folding means 42 and 43 , and sticking means 54 are all configured to move together with the container 10 in synchronization with the transport speed of the container transport conveyor 15 . With these configurations, it is possible to obtain the band-wrapped package P in which the band sheet 11 is wrapped around the container 10 .

As shown in FIG. 1, the sheet supply means 14 is provided with a cutting means 19 for cutting the continuous film 13 pulled out from the original roll (supply source) 18 in a direction intersecting with the pulling direction. A belt sheet 11 having a predetermined width cut into a shape can be delivered to the sheet conveying conveyor 12 so as to be adsorbed at predetermined intervals. In the draw-out path of the continuous film 13, the continuous film 13 is provided with crease marks (crease marks) 20 (see FIG. 3) along the draw-out direction at intervals corresponding to the lateral width of the top surface of the container 10. A creasing means 21 is provided for imparting with . The creasing means 21 is composed of a pair of creasing rollers including a roller having a valley-shaped concave groove formed on its peripheral surface and a roller having a mountain-shaped convex portion formed on its peripheral surface. By sandwiching the continuous film 13 with the shaped portions, the streaks 20 are continuously provided in the transport direction as the film is transported.

As shown in FIG. 3, the sheet conveying conveyor 12 includes a suction conveyor in which suction belts 22 for suctioning and conveying the belt sheet 11 transferred from the sheet supply means 14 are arranged in a plurality of rows. The suction belt 22 is driven by a driving source such as a servomotor to continuously run. The suction belt 22 is provided with suction ports 22a arranged in the conveying direction. A plurality of suction chambers 23, 24 are arranged on the lower surface of the upper running path of the sheet conveying conveyor 12 that conveys the band sheet 11, and the suction chambers 23, 24 are connected to a suction source such as a blower (not shown). By the negative pressure acting from the suction port 22a of the suction belt 22, the belt sheet 11 is arranged in the conveying direction on the belt surface at predetermined intervals and conveyed. The sheet conveying conveyor 12 attracts and holds the belt sheet 11 fed from the sheet supply means 14 at intervals matching the supporting interval (conveying interval) of the container 10 by the container conveying conveyor 15, and moves the belt sheet 11 towards the conveying end. configured to carry. The suction chambers 23 and 24 are divided into a first suction chamber 23 on the upstream side for receiving and conveying the band sheet 11 from the sheet supply means 14 and a second suction chamber 24 on the downstream side. As a result, the plurality of band sheets 11 sucked by the suction belt 22 in the area where the second suction chamber 24 is arranged in the sheet conveying conveyor 12 are picked up by the suction head 29 and the suction port 22a is opened. By doing so, it is possible to prevent the adsorption negative pressure from decreasing.

As shown in FIGS. 1 to 3, the container transport conveyor 15 is arranged in parallel (side by side) on one side of the sheet transport conveyor 12. The container transport conveyor 15 moves the sheet of the sheet transport conveyor 12. It is configured to support and transport the container 10 in the same transport direction as the transport direction. The container transport conveyor 15 employs a conveyor in which transport bodies 27 for supporting the containers 10 are arranged at predetermined intervals on an endless chain 26 as a cyclic body, which is a cord-like body that circulates. It is configured to continuously travel by being driven by

As shown in FIGS. 1 and 5, the carrier 27 is provided with a pushing piece 27b for supporting and pushing the rear side of the container 10 at the rear end of the mounting piece 27a on which the container 10 is placed. The conveying body 27 is provided with a mounting piece 27a spaced upward from the running path of the endless chain 26, and is spaced from the endless chain 26 at a predetermined distance so that the pushing piece 27b protrudes into the conveying path from the upstream end of the mounting piece 27a. are placed for each. In the transport path of the container 10 transported by the container transport conveyor 15, there is a gap between the endless chain 26 and the mounting piece 27a into which the bottom folding members 48, 49 of the bottom folding means 42, 43, which will be described later, can enter. is provided. Further, in the transport body 27, the placing piece 27a extends from the pushing piece 27b toward the downstream in the container conveying direction. As will be described later, the belt sheet 11 stuck under the mounting piece 27a and formed into a loop can be removed from the mounting piece 27a in the container conveying direction.

As shown in FIG. 1, in the container conveying path of the container conveying conveyor 15, there is a sheet transfer area upstream of the sheet transfer area where the belt sheet 11 is transferred by the suction head 29 to the container 10 conveyed by the container conveying conveyor 15. , detection means 28 for detecting the container 10 supported by each carrier 27 is provided. Based on the detection result of the container 10 by the detection means 28, the sheet supply means 14 matches the arrangement interval of the conveying body 27 supporting the container 10 according to the detection interval of the container 10 detected as having a container. It is configured to transfer the strip sheet 11 to the sheet transport conveyor 12 at intervals. Therefore, when the empty conveying body 27 not supporting the container 10 passes through the arrangement position of the detecting means 28, the container 10 is not detected by the detecting means 28. The belt sheet 11 is not delivered to the conveyor 12 at the same interval as the container conveying interval (the interval at which the conveyor 27 is arranged with respect to the endless chain 26), and the sheet conveying conveyor 12 has an empty portion where the belt sheet 11 does not exist. The belt sheet 11 is sucked and held at a certain wide interval, and is continuously conveyed to the end of the conveyance.

As shown in FIGS. 1 and 2, the transferring means 16 is arranged to transfer the band sheet 11 from the sheet conveying conveyor 12 to the container conveying conveyor 15 . The transfer means 16 is provided with a suction head 29 that collectively picks up the plurality of band sheets 11 sucked by the suction belt 22 of the sheet conveying conveyor 12 and positions them on the top surfaces of the plurality of containers 10 that are conveyed by the container conveying conveyor 15. . In this embodiment, two suction heads 29A and 29B are provided in a line in front and behind the conveying direction of both conveyors 12 and 15, and each suction head 29A and 29B is capable of sucking a plurality of band sheets 11 at the container conveying interval. A plurality (six sets in this embodiment) of suction members 30 are provided spaced apart in the conveying direction, and are configured to be able to collectively suck 12 band sheets 11 in this example by both suction heads 29A and 29B. The suction member 30 is composed of a suction tool 30a composed of a plurality of suction cups which are spaced apart from each other by a predetermined distance so as to be able to suction both ends in the longitudinal direction (direction perpendicular to the conveying direction) of the band sheet 11 (FIGS. 4 and 7). reference).

The suction heads 29A and 29B are moved left and right in a direction intersecting the conveying direction of the sheet conveying conveyor 12 and the container conveying conveyor 15 by slide means 31, 33 and 35 each comprising a plurality of linear sliders operated by drive motors such as servo motors. and back and forth in the conveying direction of both conveyors 12 and 15 and in the vertical direction. That is, as shown in FIGS. 1 and 2, the first slide means 31 are disposed in front and rear in the conveying direction, and the first slider 32 provided on the first slide means 31 is attached to the front and rear of the second slide means 33 . The second slide means 33 is supported and reciprocated by the first slide means 31 in the horizontal direction perpendicular to the conveying direction. The second slide means 33 is provided with a second slider 34 that reciprocates back and forth in the conveying direction, and two third slide means 35 are provided on the second slider 34 with a predetermined distance therebetween. ing. A third slider 36 is provided on the third slide means 35 so as to be able to move up and down, and the suction head 29 is provided at the lower end of each third slider 36 . Then, the lateral movement position of each suction head 29 is reciprocated between a position above the sheet conveying conveyor 12 (FIG. 2) and a position above the container conveying conveyor 15 (FIG. 5) by the first slide means 31, In addition, the third slide means 35 determines the lifting height of the suction head 29, the standby height above the band sheet 11 sucked and held by the suction belt 22 on the sheet conveying conveyor 12, and the receiving height at which the band sheet 11 can be sucked. It is vertically controlled so as to be positioned at a height and a transfer height at which the belt sheet 11 is positioned on the top surface of the container 10 conveyed by the container conveyer 15 and the container 10 is compressed. Further, the second slide means 33 moves the suction head 29 in the sheet conveying direction (downstream) at a speed synchronized with the sheet conveying speed of the sheet conveying conveyor 12 when picking up the band sheet 11 from the sheet conveying conveyor 12 with the sucking head 29 . side) and picks up the band sheet 11 from the sheet conveyer 12 . Further, when the strip sheet 11 picked up from the sheet transport conveyor 12 and moved to the container transport conveyor 15 by the suction head 29 is transferred from above the container transport conveyor 15 to the top surface of the container 10, the strip sheet 11 is removed. , the belt sheet 11 is placed on the top surface of the container 10 while moving in the container conveying direction (downstream side) together with the container 10 at a speed synchronized with the conveying speed of the container conveyer 15 .

As shown in FIGS. 4 and 7, the third slider 36 is provided with a pressing member 37 that moves integrally with the suction head 29 so as to correspond to the arrangement position of the suction member 30 provided at the container transport interval. It is That is, the third slider 36 is provided with a holder 57 extending along the conveying direction, and the holder 57 has a vertically penetrating hole 57a corresponding to the position where the attracting member 30 is disposed. The pressing member 37, which is a flexible sheet made of polyurethane resin woven fabric, is mounted on the holder 57 by mounting members 58, 58 so as to cover the lower surface of the hole 57a. ing. When the suction head 29, which has suctioned the band sheet 11, is moved to the top surface of the container 10 and lowered so as to be positioned at the transfer height, each pressing member 37 has a portion corresponding to the through hole 57a. It is configured to press the band sheet 11 against the top surface of the container 10 . When the pressing member 37 releases the pressure on the compressed container 10, the container 10 is wrapped around the container 10 due to the restoring force that causes the container 10 to return to its original state from the compressed state. The belt sheet 11 thus formed is set at a predetermined position where it can be in close contact with the outer circumference of the container 10 and be in a seamed state.

Left and right edge portions 11a and 11b extending left and right (laterally) from the top surface of the band sheet 11 pressed against the top surface of the container 10 by the pressing member 37 are attached to the third slider 36. The folding down means 38 for folding down along both left and right side surfaces are provided. As shown in FIGS. 2 and 4, the folding-down means 38 is vertically moved by an operating cylinder (moving means) 39 disposed on a third slider 36 that moves up and down integrally with the suction head 29, and the operating cylinder 39. A moving movable member 40 and a fold-down member 41 arranged on the movable member 40 are provided. The operating cylinder 39 is arranged movably integrally with the suction head 29 via the third slider 36 . The folding member 41 is provided at each position corresponding to the pressing member 37 with respect to the movable member 40 . The folding member 41 has a pair of plate-shaped folding members 41a, 41a which are spaced apart from each other to the left and right so as to sandwich the pressing member 37, and which extend to the left and right of the band sheet 11 pressed against the top surface of the container 10. The edge portions 11a and 11b are configured to be folded down along the sides of the container 10 (see FIG. 5).

A pair of bottom folding means 42 and 43 are provided for folding the left and right edge portions 11a and 11b of the band sheet 11 folded down along the side surface of the container 10 by the folding member 41 onto the bottom surface of the container 10. be done. The bottom folding means 42, 43 are composed of a first bottom folding means 42 for folding one edge portion 11a of the belt sheet 11 and a second bottom folding means 43 for folding the other edge portion 11b. The folding means 42 and the second bottom folding means 43 are arranged facing each other on the left and right sides with the container transport conveyor 15 interposed therebetween. Since the basic configuration of the first bottom folding means 42 and the second bottom folding means 43 is the same, only the configuration of the first bottom folding means 42 will be described, and the same members of the second bottom folding means 43 will be explained. shall be given the same reference numerals.

A first bottom folding means 42 arranged on the side opposite to the sheet conveying conveyor 12 with the container conveying conveyor 15 interposed therebetween is arranged so as to extend along the container conveying direction, and is driven by a servo motor or the like. A first moving body 45 that can reciprocate in the front-rear direction (back and forth in the container conveying direction) is provided by a first horizontal moving means 44 that is composed of a linear slider that is driven by a motor. The first moving body 45 is provided with a second horizontal moving means 46 that extends in the left-right direction perpendicular to the container conveying direction. The same number of adsorption members 30 provided in the adsorption heads 29 (29A, 29B) that collectively adsorb the band sheets 11 on the second moving body 47 that moves in the left-right direction by the second horizontal movement means 46 is arranged on the container. A plurality of plate-like first bottom-folding members 48 are provided so as to be spaced apart from each other at positions corresponding to the container-conveying interval of the conveying conveyor 15 (see FIG. 6). The first bottom-folding member 48 has a standby position (solid line position in FIG. 5) spaced outward from the edge portion 11a of the belt sheet 11 folded down along the side surface of the container 10 by the folding-down member 41, and It is configured to be movable forward and backward between the folded position (the two-dot chain line position in FIG. 5 ) where the edge portion 11 a is folded into the bottom surface of the container 10 . Further, when folding one edge portion 11 a of the band sheet 11 , the first bottom folding member 48 folds the container 10 together with the container 10 at a speed synchronized with the container conveying speed of the container conveyer 15 by the first horizontal moving means 44 . It is moved in the conveying direction. The first horizontal moving means 44 and 44 of the first and second bottom folding means 42 and 43 move the first bottom folding member 48 and the first bottom folding means 48 together with the suction head 29 moved by the second sliding means 33 . A second bottom folding member 49 arranged to face the bottom folding member 48 is configured to move in the container conveying direction at a speed synchronized with the container conveying speed of the container conveyer 15 .

As shown in FIG. 5, the first bottom folding member 48 and the second bottom folding member 49 fold the space between the mounting piece 27a of the conveying body 27 and the endless chain 26 on the container conveying conveyor 15 to the bottom surface of the container. The left and right edges 11a and 11b of the belt sheet 11 are folded under the mounting piece 27a on which the container 10 is mounted. In addition, the second bottom folding member 49 is configured to move back and forth with respect to the container bottom at a position lower than the first bottom folding member 48 , and one end edge of the first bottom folding member 48 is folded into the bottom of the container 10 . The part 11a is located inside, and the other edge part 11b folded into the bottom surface of the container 10 by the second bottom folding member 49 is located on the surface side and overlapped therewith. As shown in FIG. 6, the tip portions of the first bottom folding member 48 and the second bottom folding member 49 on the side of the container transport conveyor 15 are a pair of extension pieces 50 projecting with a gap in the transport direction in plan view. ,50. When the bottom folding members 48 and 49 are moved to the folding position of the bottom of the container, the spaces formed between the extending pieces 50 and 50 of the bottom folding members 48 and 49 are vertically aligned. It is configured to allow passage of an adhered portion 54a of a seal body 54, which will be described later.

As shown in FIG. 6, the first bottom-folding means 42 for folding the edge portion 11a into the bottom surface of the container 10 first has end folds corresponding to the first bottom-folding members 48 . An air ejecting means 51 such as an air nozzle is provided for ejecting compressed air from the outside toward the edge portion 11a prior to bending the edge portion 11a to shift the edge portion 11a toward the bottom surface of the container 10. .

Below the container transport conveyor 15, an adhering device 17 is disposed for adhering overlapped portions of the left and right edges 11a and 11b of the band sheet 11 folded to the bottom surface of the container 10 by the bottom folding means 42 and 43. is set. As shown in FIG. 5, the adhering device 17 includes an adhering elevating means 52 composed of a linear slider so as to be movable integrally with one of the first moving bodies 45 which moves in the front-rear direction by the first horizontal moving means 44 . Prepare. In the embodiment, two sticking elevating means 52 are provided, and a lifting body 53 moved by each sticking elevating means 52 is provided with a seal body 54 as the sticking means. Then, the sealing member 54 is raised to heat the overlapped portion of the band sheet 11 to adhere it. The sealing member 54 has a plurality of adhering portions 54a spaced apart at container transport intervals in the container transport direction. In this embodiment, the two lifting bodies 53, 53 are provided with the same number of sticking portions 54a as the number of the strip sheets 11 to be sucked by the suction heads 29A, 29B corresponding to the respective bottom folding members 48, 49. (See Figure 6). The sticking lifting means 52 moves the sealing body 54 downward from the overlapped portions of the left and right edge portions 11a and 11b of the band sheet 11 folded into the bottom surface of the container 10, and moves the overlapped portion to the above-described transport position. It moves up and down to and from a sticking position where it is pressed against the mounting piece 27a of the body 27 and sticks.

As shown in FIGS. 1 and 8, downstream of the container transport conveyor 15, a carrying-out means 55 is provided for carrying out the container 10 wrapped with the band sheet 11 so as to be picked up downstream. The carrying-out means 55 is provided with a pair of side belt conveyors 56, 56 spaced apart in the width direction, and the belt-wrapped packaged goods P conveyed to the terminal end of the container conveying conveyor 15 are sandwiched from the left and right by the side belt conveyors 56, 56. and conveyed downstream. The upstream ends of the side belt conveyors 56, 56 are positioned upstream from the return portion of the conveying body 27, which is the end of the container conveying conveyor 15, and the conveying speed of the side belt conveyors 56, 56 is equal to the container conveying speed of the container conveyer 15. When the carrier 27, which is set to a higher speed and positioned in front of the band-wrapped package P, returns downward, the container 10 is pulled downstream from the carrier 27 supporting the band-wrapped package P. configured to let go.

Next, the operation of the strap wrapping device according to the embodiment will be described.
As shown in FIG. 1, the continuous film 13 pulled out from the original roll 18 by the sheet supply means 14 is scored by the creasing means 21 at intervals corresponding to the lateral width of the top surface of the container 10 . be done. Then, the continuous film 13 is delivered to the upstream portion of the sheet transport conveyor 12 . Each time the detecting means 28 detects the container 10 continuously conveyed by the container conveying conveyor 15 , the sheet supplying means 14 transfers the belt sheet 11 cut by the cutting means 19 to the sheet conveying conveyor 12 . As a result, as shown in FIG. 3, a plurality of band sheets 11 are conveyed on the sheet conveying conveyor 12 at a number and a conveying interval corresponding to the conveying interval of the containers 10 conveyed by the carrier 27 of the container conveying conveyor 15. They are lined up in the same direction and transported by suction.

When the same number of band sheets 11 as the containers 10 to be transferred of the band sheets 11 are transferred from the sheet supply means 14 to the sheet conveyer 12, the transfer means 16 is moved by the second slide means 33. The suction heads 29A and 29B are moved in the sheet conveying direction at a speed synchronized with the sheet conveying speed of the sheet conveyer 12. - 特許庁In addition, the transfer means 16 lowers the suction heads 29A and 29B from the standby height to the receiving height by the third slide means 35, sucks the corresponding band sheet 11 by each suction member 30, and then rises to the standby height. Then, a plurality of band sheets 11 are collectively taken up from the sheet conveyer 12.例文帳に追加

The transfer means 16 laterally moves the suction heads 29A and 29B toward the container transport conveyor 15 by the first slide means 31 and above the conveyor 15, while the second slide means 33 transports the containers. It moves in the container conveying direction together with the container conveying conveyor 15 at a speed synchronized with the container conveying speed of the conveyor 15 . The transfer means 16 lowers the suction heads 29A and 29B from the standby height to the transfer height by the third slide means 35, and moves the strip sheet 11 sucked by each suction member 30 to the corresponding container. Transfer to the top surface of 10. By lowering the suction heads 29A and 29B to the transfer height, the belt sheet 11 is pressed against the top surface of the container 10 by the pressing member 37 and is placed on the mounting piece 27a of the conveying body 27, as shown in FIG. The placed container 10 is compressed vertically. The folding means 38 lowers the folding member 41 by the operating cylinder 39 so that the left and right edges 11a and 11b extending laterally from the top surface of the container 10 are aligned along the side surfaces of the container 10. fold down so that it can be

The belt sheet 11 is pressed against the top surface of the container 10 by the pressing member 37 of the transfer means 16, and in a state in which the belt sheet 11 is moved in the container conveying direction at a speed synchronized with the container conveying speed, the bottom folding means 42, 43 moves the first and second bottom folding members 48 and 49 in the container conveying direction at a speed synchronized with the container conveying speed of the container conveyer 15 by the first horizontal moving means 44 and 44 . Compressed air is jetted from the air jetting means 51 toward one end edge portion 11a of the band sheet 11 folded down along one side surface of the container 10, and the one end edge portion 11a is It shifts to the bottom side of the container 10 . Thereafter, as shown in FIG. 5, the first bottom folding means 42 moves the first bottom folding member 48 from the waiting position to the folding position by the second horizontal moving means 46, and the first bottom folding member 48 moves one side. The edge portion 11 a of the container 10 is folded under the mounting piece 27 a of the carrier 27 so as to follow the bottom surface of the container 10 . Next, the second bottom folding means 43 moves the second bottom folding member 49 from the standby position to the folding position by the second horizontal movement means 46, and the second bottom folding member 49 folds the other edge portion 11b. , is folded into the bottom surface of the container 10 so as to overlap under one edge portion 11a.

While maintaining the first bottom folding member 48 and the second bottom folding member 49 at the folding positions, the bottom folding members 48 and 49 are moved together in the container conveying direction at a speed synchronized with the container conveying speed of the container conveyer 15 . The sticking device 17 lifts the elevating body 53 by the sticking elevating means 52 . As the lifting body 53 rises, the sealing member 54 rises from the standby position to the sticking position, and the sticking portion 54a passing through the space between the bottom folding members 48 and 49 and the mounting piece of the conveying body 27 move. The overlapped portion of the band sheet 11 is attached by sandwiching the overlapped portion with the belt sheet 27a. The transferring means 16 and the bottom folding means 42 and 43 return to their original positions after the overlapping portion of the band sheet 11 is adhered by the adhering device 17, and wait for the packaging of the container 10 by the next band sheet 11. do. It should be noted that the container 10, which has shrunk in the vertical direction due to the pressing by the pressing member 37 of the transfer means 16, is wound around the container 10 by the restoring force that returns to the original height when the pressing is released. The band sheet 11 is in close contact with the top and side surfaces of the container 10 .

As shown in FIG. 8, the band-wrapped packaged product P, in which the container 10 is wound and wrapped by the band sheet 11 and reaches the conveying end portion of the container conveyer 15, is conveyed by the pair of side belt conveyors 56, 56 of the carry-out means 55. Thus, the container 10 is sandwiched from the left and right (outside) together with the belt sheet 11 . Since the conveying speed of the side belt conveyors 56, 56 is set higher than the container conveying speed of the container conveying conveyor 15, the container 10 sandwiched by the side belt conveyors 56, 56 moves from the conveyor 27 in the container conveying direction. The belt-wrapped package P, which has been pulled and wrapped around the belt sheet 11, is removed from the mounting piece 27a of the carrier 27, and the belt sheet 11 folded under the mounting piece 27a is removed from the container 10. It becomes the band-wrapped package P that is in close contact with the bottom surface of the container. Then, the packaged product P, on which the band sheet 11 is wrapped around the top surface, the side surfaces, and the bottom surface so as to be in close contact with each other, is separated from the container transport conveyor 15 and carried downstream.

The band wrapping packaging apparatus of the embodiment picks up the plurality of band sheets 11 conveyed by the sheet conveying conveyor 12 at once by the suction heads 29A and 29B, and picks up the top surfaces of the plurality of containers 10 conveyed by the container conveying conveyor 15. Since it can be transferred to and packaged in a container, the throughput per unit time can be improved. In addition, the left and right edges 11a and 11b of the band sheet 11 transferred to the top surface of the container 10 are bent by the folding member 41 and the bottom folding members 48 and 49 which move in synchronization with the conveyance of the container conveyer 15 to bend the container. Since the belt sheet 11 is folded along the outer circumference of the belt 10, stable folding of the belt sheet 11 can be achieved even if the transport speed of the container transport conveyor 15 is increased. In addition, since the band sheet 11 is preliminarily formed with grooves 20, 20 corresponding to the lateral width of the top surface of the container 10, the left and right ends of the band sheet 11 extending leftward and rightward from the top surface of the container 10 are formed. The edge portions 11a and 11b can be folded down from the lines 20 and 20 by the fold-down member 41 and wrapped around the side surface of the container 10 without slack. Furthermore, prior to folding of one edge portion 11a by the first bottom folding member 48, the compressed air is ejected from the air ejection means 51 toward the edge portion 11a so that the container 10 is displaced to the bottom surface side. Therefore, when the end edges 11a and 11b of the band sheet 11 are folded by the bottom folding members 48 and 49, the overlapping state is not disturbed such as bending or displacement of the overlapped portion, and the folded state can be smoothly folded. Overlap can be done.

In the banding packaging apparatus of the embodiment, the suction heads 29A and 29B of the transfer means 16 are moved in the sheet conveying direction at a speed synchronized with the sheet conveying speed of the sheet conveyer 12, while the suction heads 29A and 29B Since the band sheet 11 is picked up from the sheet conveying conveyor 12, the cycle time can be shortened and the band sheet 11 can be picked up satisfactorily. Further, the transfer means 16 moves the suction heads 29A and 29B that pick up the band sheet 11 in the container conveying direction at a speed synchronized with the container conveying speed of the container conveyer 15, and moves the band sheet 11 onto the container 10. Since the belt sheet 11 is transferred onto the top surface, the cycle time can be shortened, and the belt sheet 11 can be properly transferred. Also, while the strip sheets 11 are being transferred to the container 10 by the suction heads 29A and 29B, the plurality of strip sheets 11 are delivered to the sheet conveyer 12 and prepared, and the delivered multiple strip sheets 11 are Since the transfer means 16 which has finished transferring the belt sheet 11 to the container 10 can transfer the belt sheet 11 to each container 10 being conveyed, efficient transfer processing can be performed and the speed of the apparatus can be increased. . In addition, in the transfer means 16, the suction head 29 for sucking the plurality of band sheets 11 is divided into two, and each suction head 29A, 29B is moved up and down by the third slide means 35, respectively. The weight of 29A and 29B can be reduced, and the speed can be increased.

A lowering member 41 of the lowering means 38 is moved relative to the suction head 29 by an actuating cylinder 39 disposed on the third slider 36 which moves in the horizontal direction, the front-rear direction and the vertical direction in the transfer means 16 . Since it is configured to move relatively in the vertical direction, the folding member 41 can be moved in the left-right direction, the front-rear direction, and the vertical direction together with the suction head 29 separately from the operating cylinder 39 for moving the folding member 41 in the vertical direction independently. It is possible to omit the means for moving in the vertical direction, thereby simplifying the configuration of the device.

In the banding packaging apparatus of the embodiment, the container 10 conveyed by the carrier 27 of the container conveyer 15 is detected by the detector 28, and based on the detection result, the sheet feeder 14 conveys the container 10 to the sheet conveyer 12. Since it is configured to transfer the band sheets 11 , the band sheets 11 of positions and numbers corresponding to the containers 10 conveyed by the container conveying conveyor 15 can be transferred to the sheet conveying conveyor 12 . Therefore, even if there is a transport body 27 that does not support the container 10, it is possible to prevent unnecessary band sheets 11 from being transferred to the sheet transport conveyor 12. can be transferred.

The banding packaging apparatus of the embodiment is a seal provided with an adhering portion 54a provided at the edge portions 11a and 11b of the band sheet 11 folded on the bottom side of the container 10 corresponding to the conveyance interval of the container 10 being conveyed. Since it is constructed such that it is adhered at once by the body 54, the overlapped portions of the plurality of band sheets 11 can be favorably adhered. The pressing member 37 vertically compresses the container 10 placed on the placing piece 27a, and winds the band sheet 11 around the outer circumference of the container 10, and the wound band sheet 11 is stretched. Since the ends are adhered to each other, the pressing member 37 is released and the mounting piece 27a is pulled out from the bottom surface of the container. The wound belt sheet 11 can be tightly attached to the outer circumference of the container 10 in a stretched state. Further, since the pressing member 37 is configured to press the belt sheet 11 against the top surface of the container 10 by the flexible sheet of the portion corresponding to the through hole 57a of the holder 57, the pressing member 37 bends and the container 10 is deformed. and damage can be avoided. Furthermore, since the packaged product P obtained by winding the band sheet 11 is sandwiched from the left and right by the side belt conveyors 56, 56 and is received downstream of the container conveyer 15 and carried out, the band wrapped around the container 10 When the mounting piece 27a of the conveying body 27 on which the container 10 is mounted is removed inside the sheet 11, the band sheet 11 is not displaced and can be conveyed to the next process in a good packaging form.

(Change example)
The present invention is not limited to the configuration of the embodiment, and can be modified, for example, as follows. In addition, without being limited to the following modification examples, various embodiments can be adopted within the scope of the present invention for the configurations described in the examples.
(1) The detecting means 28 for detecting the container 10 conveyed by the container conveyer 15 may be provided as required.
(2) As the sticking means 54 of the overlapped portion of the band sheet 11, it is possible to adopt a configuration of sticking by various known means such as ultrasonic waves and adhesives.
(3) The carrying-out means 55 for carrying out the container 10 wound and wrapped with the belt sheet 11 from the container carrying conveyor 15 can take out various forms such as, for example, a configuration in which the container 10 is pushed out from the conveying body 27 by the pushing body of the overhead conveyor. can be adopted.
(4) In the embodiment, the suction head 29 picks up the band sheet 11 being conveyed by the sheet conveyer 12. However, a configuration is adopted in which the band sheet 11 is picked up when the conveying of the sheet conveyer 12 is temporarily stopped. can do.
(5) In the embodiment, the creases 20 are formed in the continuous film 13 by the creasing means 21, but a configuration in which the creases 20 are formed in the band sheet 11 before being transferred to the sheet conveyer 12 may be adopted. can be done. Moreover, the creasing means 21 may be provided as required.
(6) In the embodiment, the suction belt 22 of the sheet conveying conveyor 12 is continuously driven, and the plurality of band sheets 11 held by the sheet conveying conveyor 12 are moved by the suction head 29 of the transfer means 16 in accordance with the container conveying interval. However, it is also possible to adopt a configuration in which the suction belt 22 is intermittently moved so that the belt sheet 11 can be received in accordance with the container conveying interval.

(7) The suction head 29 has a plurality of suction members 30 arranged in accordance with the container conveying interval. 11 is transferred to the container 10 conveyed by the container conveyer 15, a configuration can be employed in which the plurality of adsorption members 30 are moved so as to match the container conveyance interval.
(8) In the embodiment, the third slider 36 on which the suction head 29 is arranged is provided with the folding-down means 38. However, the folding-down means 38 is arranged independently of the suction head 29 in the left-right direction, the front-rear direction and the vertical direction. Folding means that makes the member 41 movable can be employed.
(9) In the embodiment, a plurality of band sheets 11 are attached by a sealing member (adhering means) 54 having a plurality of adhering portions 54a arranged at intervals corresponding to the container conveying interval on the container conveyer 15. A roller-type sealing head is provided below the container transport conveyor 15, and the overlapped portion of the band sheet 11 of the container 10 sequentially passing over the sealing head is sealed. A form in which the head is pressed for attachment can be adopted.
(10) In the embodiment, the pressing member 37 provided integrally with the suction head 29 presses the band sheet 11 against the top surface of the container 10. It is possible to adopt a configuration in which the strip sheet 11 is pressed against the top surface of the container 10 by means of the adsorption member 30 arranged in the container 10 .
(11) In the embodiment, two suction heads 29A and 29B are arranged in the conveying direction of the sheet conveying conveyor 12 and the container conveying conveyor 15, but the number of the suction heads may be one or three or more. .
(12) In the embodiment, one transfer means 16 is used to transfer the band sheet 11 to the container 10. However, a plurality of transfer means 16, for example, two transfer means 16 are provided. It is possible to employ a configuration in which the belt sheet 11 is taken up from the sheet conveyer 12 by the other transfer means 16 while the belt sheet 11 is being transferred to the container 10, and the processing capacity can be further enhanced.
(13) In the embodiment, the sheet supply means 14 is configured to transfer the belt sheet 11 to the sheet conveyer 12 at the conveying interval of the container 10 on the container conveyer 15 detected by the detector 28. The belt sheet 11 is configured to be delivered to the sheet conveyer 12 at the arrangement interval (container conveyance interval) of the conveying body 27 in 15, and the belt sheet 11 corresponding to the empty conveying body 27 on which the container 10 is not supported: A configuration is adopted in which the suction heads 29A and 29B of the transfer means 16 are prevented from being sucked, or the belt sheet 11 is sucked and transferred to the empty carrier 27 and then removed, for example. can do. That is, the transfer means 16 sucks and picks up the band sheets 11 in a number corresponding to at least the plurality of containers 10 being conveyed by the container conveying conveyor 15, which are sucked by the sheet conveying conveyor 12, and picks up the picked up plurality of band sheets. It is sufficient that the sheet 11 can be transferred to the top surface of each container 10 with the interval between the sheets 11 being the interval between the plurality of containers 10 being conveyed by the container conveyer 15 .

10 stacked containers (containers), 11 belt sheet, 11a one edge portion 11b other edge portion, 12 sheet conveying conveyor, 14 sheet supply means 15 container conveying conveyor, 16 transfer means, 20 streaks (folding habit) for use)
21 Creasing Means 27a Placing Piece 28 Detecting Means 29 Suction Head 38 Folding Means 41a Folding Member 42 First Bottom Folding Means (Bottom Folding Means)
43 second bottom folding means (bottom folding means), 51 air ejecting means, 54 sealing body (adhering means)
54a sticking portion, 55 carry-out means

Claims (8)

A band wrapping packaging device for wrapping and bundling a band sheet around stacked containers,
a sheet conveyer that adsorbs and conveys the band sheets so as to line up in the conveying direction of the band sheets;
a container transport conveyor disposed on the side of the sheet transport conveyor and capable of supporting and transporting the containers at predetermined intervals in the transport direction of the containers;
At least a number of band sheets adsorbed to the sheet conveying conveyor and corresponding to the plurality of containers being conveyed by the container conveying conveyor are sucked and picked up, and moved to the top surfaces of the plurality of containers being conveyed by the container conveying conveyor. transfer means for moving the band sheet together with the container by pressing the band sheet against the top surface of the container with both end edges of the band sheet extending to the side of the container;
Folding means for moving together with the container so that both end edges of the band sheet pressed against the top surface of the container being conveyed by the container conveying conveyor are folded down along both side surfaces of the container;
bottom folding means for folding the both edge portions folded down along the side surfaces of the container onto the bottom surface of the container being conveyed by the container conveyer;
A banding packaging device, comprising: a sticking means for sticking the overlapped portion of the band sheet folded by the bottom folding means while the container is conveyed on the container conveyer. a sheet supply means for placing and delivering the band sheet on the sheet conveyer;
and detecting means for detecting the container transported by the container transport conveyor,
2. The band wrapping and packaging apparatus according to claim 1, wherein said sheet supply means transfers said band sheet to said sheet conveyer at the container conveying interval on said container conveyer detected by said detecting means. . 3. The band wrapping package according to claim 2, further comprising creasing means for forming creases for forming a crease in the band sheet to be folded along the side surface of the container before the band sheet is transferred to the sheet conveying conveyor. Device. Before folding both edge portions of the band sheet folded down on the side surface of the container onto the bottom surface of the container, compressed air is blown from the outer side to one edge portion that overlaps on the inner side in the overlapping portion to 4. The banding packaging device according to any one of claims 1 to 3, further comprising an air ejection means for displacing the portion to the bottom side. At the end of the transport of the container transport conveyor, the container is conveyed by pinching the container from the outside of the band sheet wound around the vertically compressed container while being placed on the mounting piece of the container transport conveyor and transported. 5. The banding packaging apparatus according to any one of claims 1 to 4, further comprising carrying-out means for pulling the container downstream at a speed higher than the speed of the conveyor and extracting the container placed on the placing piece. . The band wrapping and packaging apparatus according to any one of claims 1 to 5, wherein the transferring means includes a plurality of suction heads for sucking and picking up the plurality of band sheets being conveyed from the sheet conveyer. . The adhering means is characterized by providing a plurality of adhering portions which are arranged at the same interval as the interval at which the container can be supported and conveyed by the container conveyer and which can move downstream together with the container conveyer. The banding packaging device according to any one of claims 1 to 6. The folding means is characterized in that folding members for folding down both end edges of the band sheet pressed against the top surface of the container along both side surfaces of the container are provided on the transfer means so as to be movable up and down. The banding packaging device according to any one of claims 1 to 7.

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