JP6279455B2 - Container banding device - Google Patents

Description

  The present invention relates to a band winding device for winding a sheet-shaped band film around a container with a lid.

  As a device for winding a band film around a container with a lid, for example, the ends of upper and lower long films are heat sealed and joined, and the containers are conveyed by a conveyor toward the film stretched up and down. After transporting until the upper and lower sides of the container are covered with the film to the downstream, the film is sandwiched and welded behind the passed container by a pair of heat sealers provided on the downstream side of the guide roller to which the film is guided. An apparatus has been proposed in which a band film is wound around a container (see Patent Document 1).

JP 2001-180622 A

  The apparatus of Patent Document 1 uses a shrink film as a film, winds the film loosely around a container, transfers the film to a heating tunnel, heat-shrinks the film, and adheres the shrinked film to the container without misalignment. I am doing so. Therefore, when the contents of the container are foods such as cakes and other sweets whose merchandise value is reduced or lost due to the effect of heating by passing through the heating tunnel, the above-described apparatus is not suitable. The actual situation is that a container containing such food is wrapped around by manually wrapping the film and overlapping the both end portions of the film by applying tape or the like. Further, in such an apparatus, the film wound after being transported to the heating tunnel is in close contact with the container by heat shrinkage, and until the film wound loosely is transported to the heating tunnel and contracts. The band winding position with respect to the container may be shifted or distorted.

  That is, the present invention has been proposed to solve these problems in view of the above-mentioned problems related to the prior art, and the belt film can be wound around the container without slack, regardless of the shrink film. It aims at providing the band winding apparatus of the container which can wind a band film in a winding state without position shift.

In order to overcome the above-mentioned problems and achieve the intended purpose, the container winding device of the invention according to claim 1 of the present application comprises:
A container band winding device for winding a sheet-shaped band film around a container over a top surface of a container with a lid conveyed by a conveyor, an opposite side surface of the container, and a bottom surface of the container,
A film conveying means for feeding transportable bands film of the sheet,
On both sides in the width direction of the band film sandwiching the band film wound around the container, sandwiching means for compressing across the opposite side surfaces of the container ;
Inheriting the band film from the film conveying means, and mounting means comprising a holding member for mounting and holding the band film on the top surface of the container;
The strip film placed on top of the previous SL container, by folding along the side and bottom surfaces facing the container, a folding means which polymerize vertically bottom surface of each end of the band film,
And a joining means for joining the ends of the band films Polymerization at the bottom of the container,
After the ends of the band film wound around the container compressed by the clamping means are joined by the joining means, the container is compressed by the clamping means, and the wound state is stretched around the container. characterized in that it.
According to the first aspect of the present invention, when the band film is wound around the container and the ends of the wound band film are joined to each other, the band film is sandwiched around the container compressed by sandwiching the container from the front and rear by the clamping means. Wrap. When the compression by the clamping means is released, the container swells to its original size, so that it can be tightly adhered to the container in a stretched state. In other words, since the shrink film is wound around the container and then transported to the heating tunnel, the film is not shrunk and brought into close contact with the container. It is possible to automate the band winding work without exerting any effect. Further, the band film loosely wound around the container is not displaced or detached in the process of transporting to the heating tunnel, and the commercial value is not deteriorated due to the film winding deviation. In addition, the use of shrink film and the installation of a heating tunnel are not required, and not only the packaging material cost and equipment cost can be reduced, but also space saving can be achieved.

In the invention which concerns on Claim 2, the said clamping means contact | abuts the conveyance direction front of the said container conveyed with the said conveyor, and stops the said container, The clamping member contact | abutted to the conveyance direction back of the said container It is characterized by comprising.
According to the invention of claim 2, clamping consisting and the contact member to stop the container in contact with the conveying direction in front of the container conveyed by the conveyor, the pinching member contacts the conveying direction behind the vessel by means, since it is configured to compress and pinch the container from the front and back, there is no need to separately provide a means for positioning stop the container, the configuration can be simplified. Moreover, one stop the barber device by the abutment member having a clamping means, since compressed by sandwiching the container by pinching member, the displacement of such containers is lateral displacement between the stop to nipping It is hard to raise and it is hard to produce a shift | offset | difference in the mounting position to the top | upper surface of the container of a strip film.

The invention according to claim 3 is characterized in that the sandwiching means sandwiches a fitting portion in which the container main body and the lid are fitted in the container.
According to the invention of claim 3, since the clamping means clamps the fitting portion between the container body and the lid, which is the most rigid part of the container, a large amount of compression is ensured without plastically deforming the container. it can. And, the container released from the compression is a band-wrapped package in which a relatively large amount of tightening is tightened so that the band film swelled and wound from the compressed state to the original size is not stretched and a lateral shift or the like does not occur. can do.

The invention according to claim 4 is characterized in that the clamping means is configured to be capable of adjusting a compression amount for clamping the container.
According to the invention of claim 4, since the clamping means is configured to be able to adjust the amount of compression when the container is sandwiched from the front and rear, the container is plastically deformed according to the size of the container and the properties of the container. As a moderate amount of compression, damage to the container can be prevented. In addition, it is possible to flexibly cope with a plurality of varieties and container material changes, and the width of the container on which the belt film can be wound can be widened.

In the invention according to claim 5, the folding means guides the band film to be bent downward along the opposing side surfaces of the container by the air ejected from the air nozzle arranged so that the ejection direction of the air can be adjusted. And a bottom folding means for folding the band film bent downward along the bottom surface of the container.
According to the invention which concerns on Claim 5, since only the air which blows out from an air nozzle, the edge part of a strip film is bend | folded below by a non-contact, it can prevent a damage | wound to a strip film, and the apparatus regarding folding of a strip film is simple. Can be. Moreover, since the air nozzle is arranged so that the direction of air ejection can be adjusted, the air ejection flow is adjusted according to the size and shape of the container, and the end of the belt film bumps against the side of the container. You can follow along.

In the invention according to claim 6, wherein the bottom folding means, and a conveyor upstream and a downstream side of the transport containers to the fold position of the raised while strip film toward the bottom surface of the container the band winding position by the conveyor A pair of folding members that move forward are provided.
According to the invention which concerns on Claim 6, since a folding member advances toward a folding position, it raises toward the bottom face of a container, When a folding member reaches the bottom face of a container and advances further, the bottom face of a container and a folding member Thus, the end portion of the band film is not pinched, and the end portion of the band film can be effectively wound around the bottom surface of the container with the folding member without sag.

In the invention which concerns on Claim 7, one folding member used as the conveyance downstream side in a pair of said folding member is the time which reaches | attains the bottom face of the container at the time of bending the edge part of the said strip film toward the bottom face of the said container Is made slower than the other folding member on the upstream side of conveyance.
According to the seventh aspect of the present invention, when the belt film is polymerized on the bottom surface of the container, it is possible to prevent problems such as the leading ends interfering with each other and bending, or the overlapping order becoming unstable. .

In the invention which concerns on Claim 8, when the said bending means piles up the edge part of the strip film bent so that it may extend below from the bottom face of a container on the bottom face of a container, each edge part of this strip film is non-contacted It has a non-contact adsorbing device that adsorbs and pulls at a point.
According to the invention according to claim 8, when the end portion of the band film is bent by the folding member, the end portion can be sucked and held to be tensioned, and the band film is wound more appropriately without loosening; can do. In addition, since the folding member sucks and holds the end portion of the band film in a non-contact state, the band film can be prevented from being damaged.

In the invention according to claim 9, wherein the film is transported by the transport means the strip film held by adsorption state of non-contact suction again and again Therefore contactless longitudinal end portions, the holding member in the longitudinal center of its characterized in that in the as inherited and held.
According to the ninth aspect of the present invention, the band film is adsorbed and held in a non-contact state by the non-contact adsorbing tool , so that the band film can be prevented from being damaged when the band film is conveyed by the film conveying means.

The invention according to claim 10 is characterized in that the placing means presses and compresses the top surface through a belt film placed on the top surface of the container by the holding member.
According to the invention of claim 10, since the container compresses the periphery from three directions in accordance with the compression from the two directions by the clamping means by pressing the top surface of the container with the holding member in the mounting means. The compression amount can be distributed in three, and the overall compression amount can be increased without unreasonableness. As a result, it is possible to deal with various types of containers having different properties.

  According to the band winding device for a container according to the present invention, the band film can be wound around the container without slackness regardless of the shrink film. Further, the band can be wound in a state where the band film is wound around the container without being displaced.

It is a schematic perspective view which shows the band winding apparatus which concerns on the Example of this invention. It is a schematic plan view which shows the band winding apparatus of an Example. It is a schematic side view which shows the winding means of an Example. It is a schematic perspective view which shows the clamping means of an Example. It is a schematic explanatory drawing of the band winding process of an Example.

  Next, examples of the container band winding device according to the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, a container 10 to be wound is composed of a substantially tray-shaped container body 11 and a substantially box-shaped lid 12 covered on the upper side of the container body 11, and sweets such as cakes. And other items such as food. In the container 10, the outer peripheral edge of the lid 12 opened downward is fitted to the outer peripheral edge of the container main body 11, and a fitting portion 13 in which the container main body 11 and the lid 12 are fitted is provided in the lower part of the side surface. Then, a belt film F is wound around the container 10 over the top surface of the lid 12, the front and rear side surfaces, and the bottom surface of the container body 11.

  As shown in FIG. 1 and FIG. 2, the band winding apparatus according to the embodiment includes a container conveyor (conveyor) 14 that conveys the container 10, and a container 10 that is stopped by a stopping unit at the band winding position W of the container conveyor 14. Is provided with a clamping means 16 for clamping the belt film F from the front and back, and a winding means 18 for winding the band film F around the container 10 at the band winding position W and joining both ends of the band film F. In addition, the container 10 is conveyed by the container conveyor 14, the fitting part 13 which the container main body 11 and the lid | cover 12 fit is located in a side. Further, on one side of the container conveyor 14, a film cutting means 20 is provided for forming a strip-shaped band film F by drawing a film from the raw roll every predetermined length and cutting it with a knife. The band films F obtained one by one by the film cutting means 20 are conveyed by the film conveying means 22 to the winding means 18 in the conveying path of the container conveyor 14.

  As shown in FIG. 2, the container conveyor 14 conveys an accumulation conveyor 24 disposed on the upstream side, and a container 10 disposed on the downstream side of the accumulation conveyor 24 and individually separated from the accumulation conveyor 24. And a feed conveyor 26. The accumulator 24 is a roller conveyor in which small-diameter rollers (not shown) are arranged in front and rear in the transport direction, and the containers 10 that are randomly fed from the previous process are arranged in a line in a state where they are in contact with the front and rear. . At the downstream end of the conveyance of the accumulator conveyor 24, cutting means having a pair of cutout bodies 28, 28 that move forward and backward with respect to the conveyance path by the air cylinder 27 are disposed on the left and right sides of the conveyance path of the accumulation conveyor 24. ing. In the accumulator 24, the leading container 10 and the succeeding container 10 are arranged in a line in the front and rear direction by holding the leading container 10 sandwiched from both the left and right sides by the cut-out bodies 28 and 28 that have advanced into the conveying path. Store. Then, both the cutout bodies 28 and 28 are moved away from each other so as to be retracted from the conveyance path by the air cylinder 27, and are individually sent out from the top container 10 to the feed conveyor 26.

  As shown in FIG. 2, the feed conveyor 26 includes a horizontal conveyance path in which a pair of endless belts 30, 30 that are separated from each other on the left and right extend toward the conveyance downstream. The left and right end portions of the bottom surface are placed and conveyed. In the feed conveyor 26, each endless belt 30 is wound around a pulley 32 a that is cantilevered by left and right side frames 32. Both side frames 32, 32 are configured to be able to move toward and away from each other by a gap adjusting means (not shown), and adjust the gap width of both endless belts 30, 30 according to the left and right width, the bottom surface shape, etc. of the container 10, The placement position of the container 10 can be adjusted. The feed conveyor 26 is provided with the band winding position W and a temporary stop position S in the middle up to the band winding position W. At the temporary stop position S, an intermediate stopper 35 that is moved up and down by the air cylinder 34 and protrudes and descends on the conveyance path from below the feed conveyor 26 in the space between the endless belts 30 and 30 is disposed. When the containers 10 individually fed from the accumulation conveyor 24 are detected by a sensor (not shown) while being transported toward the temporary stop position S, the intermediate stopper 35 is actuated so as to protrude from below the transport path. The forward movement of the container 10 is restricted and stopped at the temporary stop position S on the upstream side of the band winding position. Then, the intermediate stopper 35 is withdrawn below the conveyance path to release the regulation of the container 10 in accordance with the timing when the container 10 in which the winding of the band film F is completed at the band winding position W is sent out toward the conveyance downstream. Thus, the container 10 moves forward toward the band winding position W.

  As shown in FIG. 2, the film conveying means 22 moves along guide rails 36, 36 provided so as to extend in a direction orthogonal to the container conveying direction, spaced apart before and after sandwiching the band winding position W. A possible pair of arm members 38, 38 are provided. An adsorbing member 40 that holds the belt film F is disposed on the extending end side of the arm members 38 that extend toward the opposite side of the guide rails 36 and 36. The adsorbing member 40 is a non-contact adsorbing tool that can adsorb and hold the belt film F to the adsorbing pad in a non-contact manner by the negative pressure generated on the lower surface by the blown air. The adsorbing member 40 is attached to an arm member 38 that is lifted and lowered by an air cylinder 39 disposed on a moving body 42 that moves along a guide rail 36, and is a longitudinal length of a strip film F obtained by cutting with the film cutting means 20. Lift up by adsorbing and holding near both ends in the direction. The adsorbing member 40 is disposed so that its position can be adjusted along the extending direction of the arm member 38, and the mutual distance between the adsorbing members 40 and 40 can be adjusted according to the size of the band film F. The two adsorbing members 40, 40 have a holding position for receiving the band film F separated to one side of the band winding position W in the conveyance path of the container 10 by moving both arm members 38, 38 by the drive mechanism 37. The reciprocating movement is performed with respect to the delivery position set above the band winding position W. A servo motor 41 is connected to the drive mechanism 37, and the adsorbing members 40, 40 can hold the center of the cutting width of the band film F at the holding position according to the cutting width of the band film F by the knife of the film cutting means 20. At the delivery position, the rotation of the servo motor 41 is controlled so that the belt film F held is positioned at the center of the transport line of the container 10. And in the delivery position, the band film F faces the upper side of the container 10 in the band winding position W, the center in the longitudinal direction coincides with the front and rear center of the container 10, and both longitudinal ends extend to the front and rear of the container 10. It is held by the suction members 40, 40 (see FIG. 5A).

  The holding means 16 is conveyed by a pair of abutting members 43, 43 as stop means that abuts the front of the container 10 and prevents the container 10 from being conveyed at the band winding position W, and the corresponding contact members 43, 43. A pair of pinching members 44, 44 are provided in pressure contact with the rear of the stopped container 10. The pinching member 44 is disposed on the upstream side of conveyance with respect to the contact member 43. The abutting members 43 and 43 and the sandwiching members 44 and 44 are configured to sandwich the container 10 from the front and rear sides on both outer sides of the portion where the belt film F is wound. Thus, the pair of contact members 43 and 43 facing the front of the container 10 also serves as one of the clamping means 16. And the clamping means 16 clamps the fitting part 13 of the container 10, and compresses it from front and back.

  As shown in FIG. 2, the abutting members 43, 43 and the sandwiching members 44, 44 are respectively disposed on the inner end portions of the support shaft 45 extending from the outer side to the inner side of the side frame 32 of the feed conveyor 26, The support shaft 45 is rotated by the operating mechanism 46 supported on the outer surface of the side frame 32, so that the support shaft 45 appears and disappears in the space between the endless belts 30, 30 in the feed conveyor 26. The abutting members 43 and 43 and the pinching members 44 and 44 are protruded to the upper side of the conveying surface at the same time by the air cylinder 47 connected to each operating mechanism 46 and can stop the conveyance of the container 10. Switching to the retracted position retracted below the road is performed. That is, the abutting members 43 and 43 are positioned at the protruding position before the container 10 delivered from the temporary stop position S reaches the band winding position W (FIG. 5B), and the band by the winding means 18 is used. Before the film F is wound, the sandwiching members 44 and 44 are rotated to the projecting position, and the container 10 is sandwiched between the contact members 43 and 43 (FIG. 5C). The abutting members 43 and 43 and the sandwiching members 44 and 44 are set such that the mutual distance between the abutting members 43 and 43 and the sandwiching members 44 and 44 is smaller than the front-and-rear distance of the fitting portion 13 of the container 10. Clamp with a predetermined clamping force. Both side frames 32, 32 can be adjusted to be close and separated by a gap adjusting means (not shown), and the contact members 43, 43 and the sandwiching members 44, 44 supported by the side frame 32 have a left and right mutual spacing. Corresponding to the size of 10, it can be changed and set to an appropriate position outside the winding portion of the belt film F. After the winding of the belt film F by the winding means 18, the contact member 43, 43 and the sandwiching member 44, 44 are retracted to the retracted position, so that the restriction in front of the container by the contact member 43, 43 is released. The delivery of the container 10 is allowed (FIG. 5 (e)).

  As shown in FIG. 4, a pair of sliders 48, 48 are disposed on rails 33 provided on the outer sides of the left and right side frames 32. The support shaft 45 is rotatably supported by holders 49 provided on both sliders 48 and 48 so as to extend to the inside of the side frame 32. One of the sliders 48, 48 on the downstream side of the conveyance is provided with the abutting member 43 at the inner end of the support shaft 45, and is supported by the other slider 48 on the upstream side of the conveyance. The pinching member 44 is disposed at the inner end of the shaft 45. An air cylinder 47 is connected to the outer end portion of each support shaft 45 via a connecting member 50 of the operating mechanism 46, and the piston rod 47 a of the air cylinder 47 is expanded and contracted, whereby the abutting member 43 and the pinching member 44. Can be rotated to the protruding position and the retracted position. The pair of sliders 48 and 48 are arranged along the rail 33 so as to be movable toward and away from each other. A holder 49 provided with each slider 48 is screwed into a screw shaft 51, and a servo motor 52 is linked to the screw shaft 51. And the arrangement | positioning space | interval of the contact member 43 and the pinching member 44 can be adjusted by rotating the servomotor 52 forward and backward. Accordingly, the holding interval for holding the container 10 at the projecting position of the contact member 43 and the holding member 44 can be changed, and the holding means 16 can change the size and strength of the container 10 according to the characteristics of the container 10. The amount of compression of the container 10 when pinched can be adjusted.

  As shown in FIG. 3, the winding means 18 has a placing means 54 for placing the band film F inherited from the film conveying means 22 on the top surface of the container 10 at the band winding position W, and the holding means 54 holds the placing film 54. Bending means 56 for bending the strip film F downward and superimposing both longitudinal ends at the bottom of the container 10 up and down, and a joining means 58 for joining the overlapping portions of the overlapping strip film F are provided. The mounting means 54 includes a holding member 62 disposed on the elevating body 60, holds the central portion in the longitudinal direction of the belt film F by the holding member 62, and presses it against the upper surface of the lid 12. For the holding member 62, a non-contact suction tool similar to the suction member 40 is used. The lower surface of the holding member 62 facing the upper surface of the lid 12 is formed of an elastic body 62a such as synthetic rubber. In addition, the lifting body 60 is provided with a pair of pressing members 63, 63 arranged before and after the holding member 62 so as to be able to approach and separate from each other, and a belt film F held by the holding member 62 is placed below the pressing member 63. A pressing piece 64 is provided. The pressing piece 64 is made of a soft elastic body such as sponge, and presses the band film F against the front and rear ends of the top surface on both sides pressed against the center of the top surface of the container 10 by the holding member 62. Both pressing members 63, 63 can adjust the front and rear positions of both pressing members 63, 63 according to the front-rear size of the top surface of the container 10 by a servo motor 65 connected to the screw adjusting mechanism 61.

  The elevating body 60 is configured to be movable up and down by the rotation of a ball screw 85 supported by a support column 84 and a servo motor (not shown) connected to the ball screw 85, and in the middle of the elevating body 60 descending, The band film F adsorbed by the adsorbing members 40, 40 is inherited by adsorbing the longitudinal center portion thereof by the holding member 62, and the elevating body 60 is used for the container 10 in which the band film F is in the band winding position W. It is lowered to the position that reaches the top. The belt film F is pressed and held on the front and rear end portions of the top surface of the container 10 by the pressing pieces 64 and 64, and the container 10 is pressed by a pressing force that does not cause the container 10 to be plastically deformed by the holding member 62. Compress the center of the top of the top from above. The pressing of the container 10 by the holding member 62 is continued until the ends of the band film F wound around the bottom surface of the container 10 are joined. The descending position of the elevating body 60 can be changed by controlling the rotation amount of the servo motor. Further, the pressing height (pressing amount) of the top surface of the container 10 by the holding member 62 and the pressing pieces 64 and 64 can be adjusted according to the height of the container 10. In this way, before the band film F is wound around the container 10, the container 10 is compressed by the holding member 62 and the clamping means 16 from the three directions around the upper side and the front and rear sides. Then, as the band winding of the band film F is completed by joining both ends of the band film F folded on the bottom surface of the container 10, the contact members 43, 43 move to the retracted position, The clamping members 44, 44 move to the retracted position, and the clamping by the clamping means 16 is released. Further, the lifting body 60 is lifted to release the pressing by the holding member 62, so that the compression from the periphery of the container 10 is released, and the feeding conveyor 26 is allowed to feed forward from the band winding position W of the container 10. Is done.

  As shown in FIG. 3, the folding means 56 includes a lower folding means 66 for bending and guiding both ends in the longitudinal direction of the band film F held by the placing means 54 and pressed against the top surface of the container 10. The bottom folding means 67 is configured to bend the both ends of the band film F folded by the lower folding means 66 downward from the bottom surface of the container 10 toward the bottom surface of the container 10. The downward folding means 66 includes an air nozzle 70 attached to the pressing member 63 so that the direction of air ejection can be adjusted, and a belt extending forward and backward from the top surface of the container 10 by the air ejected from the air nozzles 70, 70. The both ends of the film F are bent downward. The air nozzle 70 is arranged so that the lower end of the air nozzle 70 can be tilt-adjusted from the arrangement fulcrum to the pressing member 63 in accordance with the front and rear surface shapes of the container 10. Further, the air nozzles 70, 70 can adjust the mutual interval integrally with the pressing pieces 64, 64 disposed on the pressing members 63, 63 by the screw adjusting mechanism 61. In other words, the lower folding means 66 adjusts the interval between the air nozzles 70 and 70 and the direction in which the air is ejected from the ejection port so that the end of the belt film F can be bent and guided downward along the front and rear side surfaces. The flow of air ejected from the air nozzle 70 can be changed. The belt film F extends downward from the bottom surface of the container 10 in the space between the endless belts 30 and 30 at both ends guided downwardly along the side surface of the container 10 by the downward folding means 66. It hangs down (FIG. 5 (c)).

As shown in FIG. 3, the bottom folding means 67 is provided with first and second folding members 68 and 69 spaced apart from the upstream side and downstream side of the belt winding position W. A moving mechanism 72 that moves the folding members 68 and 69 between the folding position and the retracted position is connected. The moving mechanism 72 includes a pair of guide rods 73, 73 that incline upward toward the band winding position W, and a support body 74 that moves along the guide rod 73, and a folding member 68 at the upper end of the support body 74. 69 are arranged in such a posture that their upper surfaces extend in parallel with the guide rod 73. The support 74 is configured to be able to reciprocate by rotation of a servo motor 76 connected to a ball screw 75. The folding members 68 and 69 face the bottom surface of the container 10 stopped at the band winding position W, and the folding position where the leading ends of the folding members 68 and 69 are moved to a position separated by a predetermined distance, and the bottom surface of the container 10. The reciprocating operation is performed between the retreat position and the side of the retreat position. As a result, the folding members 68 and 69 are bent so that both end portions of the strip film F extending downward from the bottom surface of the container 10 are bent toward the bottom surface, and the both end portions of the strip film F are vertically overlapped on the bottom surface. Overlapping. The postures of the upper surfaces of the folding members 68 and 69 (the surface facing the bottom surface of the container 10) do not change from the retracted position so that the both folding members 68 and 69 are at the highest position at the folding position. It is configured to rise while moving forward to the folding position.

  The folding members 68 and 69 can change the retracted position and the folding position by controlling the amount of rotation of the servo motor 76 according to the container size. As shown in FIG. 5C to FIG. 5D, the folding members 68 and 69 are moved from the folding member 68 on the upstream side to the bottom surface of the container 10. By setting the timing to be late, each end of the belt film F is alternately folded into the bottom surface of the container 10 with a time difference. As a result, when the belt film F is folded on the bottom surface of the container 10, the leading edge film interferes with each other and bends, or the belt film F on the downstream side of the conveyance does not occur, such as an unordered stacking order. The end of the belt film F on the downstream side of the transport is folded back from the downstream side of the transport toward the upstream side with a delay by the folding member 69 on the downstream side of the container 10 so that the end of the belt 10 is always folded on the bottom surface of the container 10. Thereby, when the container 10 is sent out from the band winding position W, it is possible to prevent the end of the band film F from being caught up by the transport surface of the feed conveyor 26 and other obstacles.

  A through hole 78 in which a plurality of long holes are arranged in the folding direction is provided on the upper surface of the folding members 68 and 69, and a non-contact suction tool similar to the holding member 62 is arranged below the through hole 78. It is installed. Then, the end portion of the band film F is not brought into contact with the surface of the folding members 68 and 69 by the negative suction force generated by the air ejected from the through-holes 78 of the folding members 68 and 69. The belt film F can be folded so as to be applied to the bottom surface of the container 10 while sliding the surfaces of the folding members 68 and 69 with respect to the belt film F while applying tension. In addition, since the length of the long hole arrange | positioned in the folding direction back was formed short with respect to the length of the long hole arrange | positioned in the folding direction front, the said through-hole 78 formed the folding members 68 and 69 of the container 10 in it. It is set so that the tensile force at the end of the belt film F becomes weaker as it moves forward to the bottom surface.

  As shown in FIG. 3, the joining means 58 includes a seal body 81 that is disposed below the lower surface of the container 10 at the band winding position W and that is moved up and down by an elevating mechanism 80, and the seal surface of the seal body 81 is It is formed on a concavo-convex surface in which a plurality of pointed ridges are arranged. The band film F folded on the bottom surface of the container 10 by the folding members 68 and 69 in the bottom folding means 67 is pressed against the uneven sealing surface of the heated sealing body 81 and the two overlapping films are melted in the overlapping portion. Then, the end portions of the belt film F are joined together. A servo motor 82 is linked to the elevating mechanism 80, and the servo motor 82 causes the sealing surface of the seal body 81 to be pressed against the overlapping portion and sealed, and from the bonding position to below the bottom surface of the container 10. It is configured to reciprocate between the separated retreat positions. Then, as shown in FIG. 5D, the joining means 58 raises the seal body 81 from the retracted position in a state where the band film F is folded and held on the bottom surface of the container 10 by the folding members 68 and 69. The operation timing is set to be changeable according to the size of the container 10 so as to press the overlapping portion. Then, after the film F is joined by the seal body 81, the sandwiching members 44, 44 move to the retracted position, and the folding members 68, 69 move from the folding position facing the bottom surface of the container 10 to the retracted position. Conveyance by ten feed conveyors 26 is allowed.

  Next, functions and effects of the band winding device according to the embodiment will be described. When the belt film F is wound around the container 10 by the winding means 18 and the ends of the wound band film F are joined to each other, the container 10 is sandwiched and compressed by the sandwiching means 16 from the front and back, and the placing means The band film F is wound around the container 10 compressed from three directions by pressing the top surface of the container 10 with the holding member 62 at 54. Then, when the compression by the holding means 16 and the placing means 54 is released, the container 10 expands to its original size, so that the wound film F can be tightly attached to the container 10 without slack. That is, since the shrink film is wound around the container 10 and conveyed to the heating tunnel, the film is not shrunk and brought into close contact with the container 10. The band winding operation can be automated without adversely affecting the product. Further, the band film F loosely wound around the container 10 is not shifted or detached in the process of transporting to the heating tunnel, and the commercial value is not reduced by the winding shift of the band film F. . In addition, the use of shrink film and the installation of a heating tunnel are not required, and not only the packaging material cost and equipment cost can be reduced, but also space saving can be achieved. Further, the clamping means 16 clamps from both the front and rear sides of the fitting portion 13 between the container main body 11 and the lid 12 which is the most rigid part of the lidded container 10, so that the container 10 can be compressed a lot without plastic deformation. The amount can be secured. The container 10 released from the compression does not cause a lateral shift or the like due to the band film F swelled and wound up from the compressed state to the original size, and is wound with a relatively large amount of tightening. A packaging container can be obtained.

  The abutting members 43 and 43 stop the container 10 conveyed by the container conveyor 14 at the band winding position W, and sandwiching members 44 and 44 provided on the upstream side of the abutting members 43 and 43. Since the container 10 is sandwiched and compressed from the front and rear by the sandwiching means 16, it is not necessary to separately provide a means for stopping and positioning the container 10 at the band winding position W, and the structure can be simplified. In addition, since the container 10 is stopped at the band winding position W by the contact members 43 and 43 forming one of the holding means 16, and then the container 10 is held and compressed by the holding members 44 and 44, the process from the stop to the holding is performed. It is difficult to cause a positional shift such as the lateral displacement of the container 10 between them, and it is difficult to cause a shift in the placement position of the belt film F on the top surface of the container 10. Further, each of the contact members 43, 43 and the sandwiching members 44, 44 is configured to be operated by different driving means (the operating mechanism 46 and the air cylinder 47) separated in the width direction of the feed conveyor 26. The container 10 having different shapes and strengths in the width direction can be dealt with by individually setting the operation amount according to the properties of the container 10. Further, the container 10 compresses the periphery from three directions in accordance with the compression from the two directions by the clamping means 16 by pressing the top surface of the container 10 by the holding member 62 in the placing means 54 described above. The amount of compression can be distributed in three, and the overall amount of compression can be increased without unreasonableness. As a result, it is possible to deal with more various types of containers 10 having different properties.

  The sandwiching means 16 is configured to change the mutual distance between the contact members 43, 43 and the sandwich members 44, 44 so that the amount of compression when the container 10 is sandwiched from the front and rear can be adjusted. By adjusting the mutual interval according to the size, the properties of the container 10 and the like, the container 10 can be compressed to an appropriate amount without causing plastic deformation during clamping, and damage to the container 10 can be prevented. Moreover, since it can compress moderately according to the intensity | strength of the container 10, it can be set as the state which wound the strip | belt film F more appropriately with respect to the container 10 released from compression. That is, it is possible to flexibly cope with a plurality of varieties and material changes of the container 10, and the width of the container 10 on which the belt film F can be wound can be increased. Further, the separation width of the endless belts 30, 30 of the feed conveyor 26, the separation width of the contact members 43, 43, the separation width of the sandwiching members 44, 44, the mutual spacing of the pressing members 63, 63, the downward folding means 66 The mutual interval between the air nozzles 70 and 70 can be changed and set, and the band can be wound corresponding to various containers 10 and band films F. In particular, the separation width of the endless belts 30 and 30 of the feed conveyor 26, the separation width of the contact members 43 and 43, and the separation width of the sandwiching members 44 and 44 are integrated with the adjustment of the distance between the side frames 32 and 32. Can be changed.

  The downward folding means 66 guides the end of the belt film F held on the top surface of the container 10 by the placing means 54 by the air jetted from the air nozzle 70 in a non-contact manner and is guided to the bottom surface side. Damage to the film F can be prevented. Moreover, the edge part of the strip film F can be bend-guided only by blowing air, and the apparatus regarding bending can be simplified. In addition, since the air nozzle 70 is disposed so that the air ejection direction and the arrangement of the air nozzle 70 can be adjusted, the air ejection flow is adjusted according to the size and shape of the container 10, and the band film F The end portion can be made to follow the side surface of the container 10 without bumping. The bottom folding means 67 can apply tension by adsorbing and holding the end portion of the band film F by the folding members 68 and 69, and the band film F is wound more appropriately without loosening. It can be. Moreover, since the folding members 68 and 69 adsorb and hold the end portions of the band film F in a non-contact state, the band film F can be prevented from being damaged. Further, since the folding member 69 on the downstream side of the transport moves forward with respect to the folding member 68 on the upstream side of the transport, the both ends of the belt film F on the bottom surface of the container 10 are moved forward. Polymerization defects such as overlapping in the shape of a palm can be prevented, and the end portions of the strip film F can be stacked in a predetermined order on the bottom surface of the container 10. Since the folding members 68 and 69 move forward in a posture in which the rear end side is away from the bottom surface of the container 10 with respect to the front end in the folding direction, when the upper surfaces of the folding members 68 and 69 reach the bottom surface of the container 10 and further move forward. In addition, the film end is not sandwiched between the bottom surface of the container 10 and the top surfaces of the folding members 68 and 69, and the end of the belt film F is attached to the container 10 at the front end in the folding direction of the folding members 68 and 69. It can be wound effectively without loosening by pushing down on the bottom.

  Since the film conveying means 22 sucks and holds the band film F in the non-contact state by the suction members 40, 40, when the band film F is delivered to the mounting means 54 at the band winding position, the band film F is held on the holding surface. It can be prevented from being scratched and scratched. Further, since the holding member 62 of the mounting means 54 that receives the band film F from the adsorbing member 40 adsorbs and holds the band film F in a non-contact state, when the band film F is inherited from the adsorbing member 40, the band film F is While being able to prevent scratching and scratching the holding surface, it is possible to prevent damage to the band film F when the band film F is stacked on the top surface of the container 10 stopped at the band winding position. The adsorbing member 40 and the holding member 62 are held from the adsorbing member 40 because mistakes are unlikely to occur when the adsorbing member 40 and the holding member 62 are inherited because the adhering film 40 is not in close contact with the holding surface facing the band film F. The band film F can be smoothly inherited by the member 62.

(Example of change)
The present invention is not limited to the configuration of the embodiment, and can be modified as follows, for example. Further, not limited to the following modification examples, various embodiments may be adopted for the configurations described in the examples within the scope of the gist of the present invention.
(1) The mounting means 54 is not configured to press the holding member 62 against the top surface of the container 10, and the holding film 62 may hold the belt film F in a non-contact or light contact with the top surface of the container 10. Good.
(2) The contact member 43 and the sandwiching member 44 are not limited to the configuration of the embodiment, and the contact member 43 and the sandwiching member 44 are moved up and down relative to the conveyance path, and the contact member 43 and the sandwiching member 44 are relatively moved. Various other configurations can be employed, such as a configuration in which they are close to and spaced apart from each other.
(3) The clamping means 16 adjusts the compression amount of the container 10 by changing the rotation angle of the contact member 43 and / or the clamping member 44 when stopped at the protruding position, for example, instead of the configuration of the embodiment. For example, at least when the container 10 is sandwiched, an appropriate configuration that changes the sandwiching interval of the container 10 by the contact member 43 and the sandwiching member 44 can be used.
(4) The non-contact suction tool is exemplified as the suction tool for holding the belt film F by the suction member 40 of the film transport means 22, the holding member 62 of the mounting means 54, and the folding members 68 and 69 of the folding means 56. You may employ | adopt the contact-type suction tool which vacuum-sucks and hold | maintains the strip | belt film F with the suction opening of a suction pad as needed.
(5) As an interval adjustment mechanism for the clamping means 16 and the placing means 54, a manual operation handle may be provided in the interval adjustment mechanism for adjustment. Further, not only the screw adjusting means but also other position adjusting means may be adopted.
(6) The strip film F prepared in advance may be used by being housed in the laminating means without being limited to the form in which the film drawn from the raw roll is cut to obtain the band film F. In addition, embodiments other than those described in the examples can be adopted for the film drawing portion and the film cutting portion. In addition, you may set so that the drawer | drawing-out end of the film from an original fabric roll may be directly located on the container 10 upper part of the band winding position W.
(7) The clamping means 16 is not limited to the configuration that clamps the fitting portion 13 between the container body 11 and the lid 12 of the container 10, and presses the side portion of the container 10 other than the fitting portion 13 over a predetermined range. You may compress with.
(8) The specific aspect of the container conveyor 14 is not necessarily limited to the form of the embodiment, and various forms of conveyors suitable for transporting the container 10 can be adopted.
(9) The lower folding means 66 is not limited to the air ejection method, and the end of the band film F is aligned with the side surface of the container 10 such as a mechanical bending method in which the end of the band film F is pushed against the surface of the container 10. Various configurations that can be bent and guided can be adopted.
(10) Instead of the non-contact type of the folding members 68, 69, a rubber material having a high frictional resistance with the film is disposed on the contact surface with the band film F when the band film F is folded. A form can be adopted.
(11) The folding members 68 and 69 are configured to advance horizontally, for example, instead of a configuration that advances while rising, and the end of the belt film F is placed on the bottom surface of the container 10 by a folding surface formed of an elastic body such as sponge. Other configurations can be adopted, such as bending while pushing.
(12) The bending means 56 performs an operation of bending and guiding the end portion of the band film F along the side surface of the container 10 and an operation of bending and guiding the end portion of the band film F toward the bottom surface of the container 10. A configuration in which two operating bodies are combined may be used. That is, the downward folding means and the bottom folding means may be constituted by a single operating body.
(13) The joining means 58 is not limited to the configuration in which the polymerized portion of the belt film F is heated and melted and joined, and the polymerized portion of the belt film F is joined by ultrasonic waves, or a hot melt adhesive is sprayed or applied. Any form of joining other band films F, such as bonding the polymerized portion of the band film F, can be adopted as necessary.
(14) The pressing piece 64 provided on the mounting means 54 may be adopted as necessary.
(15) The belt film F may be a synthetic resin, paper, or the like, or a film-like packaging material in which these are combined, and even when a shrink film is used, the film is stretched to such an extent that it does not shift before heat shrinkage. As a state, the band film F can be wound around the container 10, and a band-wrapping container with high winding accuracy can be obtained.

10 containers, 11 container bodies, 12 lids, 13 fitting parts, 14 container conveyors (conveyors),
16 sandwiching means, 22 film conveying means, 40 suction member, 43 abutting member,
44 sandwiching member, 54 placing means, 56 folding means, 58 joining means, 66 bottom folding means,
68,69 Folding member, 70 Air nozzle, F band film, W band winding position

Claims (10)

A sheet-like belt film (F) is placed over the top surface of the container (10) with a lid conveyed by the conveyor (14), the opposite side surface of the container (10), and the bottom surface of the container (10). (10) a container winding device for winding,
Film transport means for feeding transportable said sheet-like strip film (F) and (22),
On both sides in the width direction of the band film (F) sandwiching the band film (F) wound around the container (10), clamping means (16) for compressing the opposite side surfaces of the container (10) ;
Wherein in the film transport means (22) inherited the strip film (F), mounting means having a holding member (62) mounting and holding the band film (F) to the top surface of the container (10) (54)
Placed on the strip film to the top surface of the front SL container (10) to (F), by folding along the opposite sides and bottom of the container (10), each end of the band film (F) Bending means (56) that overlaps vertically on the bottom surface;
And a joining means (58) for joining the ends of the band films Polymerization at the bottom of the container (10) (F),
After joining the ends of the band film (F) wound around the container (10) compressed by the clamping means (16) with the joining means (58), the container (10) of the container (10) by the clamping means (16) is joined. A container band winding device characterized by releasing the compression and winding the band film (F) around the container (10) . The clamping means (16) includes an abutting member (43, 43) that abuts the container (10) conveyed by the conveyor (14) in front of the conveying direction and stops the container (10) , and the container The band winding device for a container according to claim 1, characterized in that it comprises a pinching member (44, 44) abutting rearward in the conveying direction (10).   The said clamping means (16) is comprised so that the fitting part (13) to which a container main body (11) and a lid | cover (12) fit may be pinched | interposed in the said container (10). The device for winding a container according to the description.   The said banding means (16) is comprised so that adjustment of the compression amount which pinches | interposes the said container (10) is possible, The band winding apparatus of the container as described in any one of Claims 1-3 characterized by the above-mentioned. The bending means (56) causes the belt film (F) to be brought along the opposing side surface of the container (10) by the air ejected from the air nozzle (70) disposed so that the air ejection direction can be adjusted. A downward folding means (66) for bending and guiding downward, and a bottom folding means (67) for folding the band film (F) bent downward along the bottom surface of the container (10). Item 5. A container band winding device according to any one of Items 1 to 4. The bottom folding means (67) is raised towards and a transport upstream side and a downstream side of said conveyor (14) is conveyed to the belt winding position (W) container (10) to the bottom of the container (10) 6. The container band winding device according to claim 5, further comprising a pair of folding members (68, 69) that advance to the folding position of the band film (F) .   One folding member (69) on the conveyance downstream side of the pair of folding members (68, 69) is a container when the end of the strip film (F) is bent toward the bottom surface of the container (10) ( The container winding device according to claim 6, characterized in that the time to reach the lower side of the bottom of (10) is later than the other folding member (68) on the upstream side of conveyance.   The folding means (56), when the end of the band film (F) folded so as to extend downward from the bottom surface of the container (10) is overlapped on the bottom surface of the container (10), the band film (F) The container band winding device according to any one of claims 1 to 7, further comprising a non-contact adsorbing tool that adsorbs and pulls each end of the container in a non-contact manner. Wherein said strip film held by adsorption state of the film being transported by the transport means (22) non-contact suction again and again Therefore contactless longitudinal opposite ends (F), the holding member in the longitudinal center of its (62 ) that was set to inherit held in and said strip winding device container according to any one of claims 1-8.   The placing means (54) is characterized in that the holding member (62) compresses the top surface by pressing the top surface through a belt film (F) placed on the top surface of the container (10). The container winding device according to any one of claims 1 to 9.

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