JP2005119723A - Boxing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a boxing system capable of correcting an article brought from the upstream side into a proper posture and preventing bags from jamming. <P>SOLUTION: The boxing system includes a conveyer 20 for carrying the article brought from the upstream side to the downstream side, an accumulating conveyer for carrying a predetermined number of bags X successively brought from the conveyer 20 to the downstream side in a group in a predetermined posture, and a boxing device for filling a box with the plurality of bags X carried by the accumulating conveyer. The conveyer 20 has a carry conveyer 43 for mounting and carrying the bag X and a guide mechanism 31 for correcting the posture of the bag X. The guide mechanism 31 is constituted of a pair of belt conveyers 50 and 50 placed on both sides of the carry conveyer 43 and is structured so that the opposite surfaces of the belt conveyers 50 and 50 can travel in the conveyance direction A of the carry conveyer 43. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a boxing system for packing a bag containing potato chips or the like into a cardboard box or the like, and belongs to the technical field of article packing.

  In general, in a boxing system for packing a bag containing potato chips or the like into a cardboard box or the like, it is required to carry the bag into the system in an appropriate posture from the upstream side provided with a seal checker, for example. . Therefore, the boxing system may be provided with a function for correcting the posture of the bag. For example, Patent Document 1 discloses a boxing system having such a function.

  That is, this boxing system is provided with a transport conveyor 100 as shown in FIG. 12, and a pair of guides 110, 110 extending in the transport direction A are provided on the conveyor 100 so as to face each other. Each guide 110 has an inclined surface 110a provided so that the interval on the downstream side is narrower than the upstream side, and a collision surface 110b provided on the downstream side of the inclined surface 110a so as to be orthogonal to the transport direction A. A parallel surface 110c parallel to the transport direction A is provided downstream of the collision surface 110b.

  According to this, even when the bag X is carried in from the upstream side, even if the posture of the bag X is disturbed, the position of the bag X is adjusted to the center side of the conveyor 100 by contacting the inclined surface 110a, At the downstream, the bag X is brought into contact with the collision surface 110b and rotated in the horizontal direction (arrow B), and subsequently brought into contact with the parallel surface 110c to stop the rotation of the bag X, thereby causing the bag X to have a predetermined posture. The direction can be corrected and sent to the downstream side.

JP 2000-313417 A

  However, according to such a guide 110, when the center of gravity of the bag X comes into contact with the upstream end of the guide 110, the bag X is caught by the upstream end of the guide 110, and the bag X may stop here. (See FIG. 13). Furthermore, the length between the guides 110 and 110, that is, between the parallel surfaces 110c and 110c, is set to be slightly wider than the short side of the bag to be transported and narrower than the long side, and the longitudinal direction of the bag X is directed to the transport direction A. For example, when the bag X is carried in a posture in which the width direction is directed to the carrying direction A, the bag X may be clogged in the vicinity of the downstream end of the inclined surfaces 110a and 110a. (See FIG. 14). In particular, when bags X are transported at a relatively high speed by the transport conveyor 100, when such bagging occurs, not only the boxing system but also the upstream seal checker, the upstream bag making and packaging machine, and the combination There is a problem in that productivity must be reduced because it is necessary to perform restoration work such as removing the clogged bag X by stopping the apparatus in all processes such as a weighing machine.

  Then, this invention makes it a subject to provide the boxing system which can prevent the clogging while correcting the articles | goods carried in from the upstream to an appropriate attitude | position.

  In order to solve the above problems, the present invention is configured as follows.

  First, the invention according to claim 1 of the present application is directed to a conveying means for conveying an article carried in from the upstream side to the downstream side, and a predetermined number of articles sequentially carried in from the means in a group state in a predetermined posture on the downstream side. A boxing system provided with a stacking and conveying means for conveying to a box, and a boxing means for packing a group of articles conveyed by the means into a box, wherein the conveying means carries and conveys the article And a guide mechanism for correcting the posture of the article, and the guide mechanism is composed of a pair of opposed belt conveyors disposed on both sides of the conveyor, and the conveyor belts are opposed to each other. The surface is capable of traveling in the transport direction of the transport conveyor.

  Next, the invention according to claim 2 is the boxing system according to claim 1, wherein the pair of belt conveyors constituting the guide mechanism is configured such that the distance between the downstream end side is narrower than the upstream end side. It is characterized by.

  Next, according to a third aspect of the present invention, in the boxing system according to the first or second aspect, the position of the pair of belt conveyors constituting the guide mechanism can be adjusted with respect to the conveying conveyor. It is characterized by being.

  Next, according to a fourth aspect of the present invention, in the boxing system according to any one of the first to third aspects, the pair of belt conveyors constituting the guide mechanism are supported by being suspended from above. It is characterized by.

  Next, according to a fifth aspect of the present invention, in the boxing system according to the fourth aspect, each belt conveyor constituting the guide mechanism wraps a belt around a pair of shafts arranged along the conveying direction. The upper end of the shaft is rotatably supported via a bearing.

  Next, the invention according to claim 6 is the boxing system according to any one of claims 1 to 5, wherein the transport conveyor and the pair of belt conveyors constituting the guide mechanism are independently driven. A source is provided.

  Next, the invention according to claim 7 is that in the boxing system according to claim 6, the traveling speed of the pair of belt conveyors constituting the guide mechanism is set to be equal to or higher than the traveling speed of the transport conveyor. Features.

  According to an eighth aspect of the present invention, in the boxing system according to the sixth or seventh aspect, the pair of belt conveyors constituting the guide mechanism are each provided with an independent drive source. Features.

  First, according to the first aspect of the present invention, the guide mechanism is constituted by a pair of belt conveyors facing each other, and the surfaces that are opposed to each other are allowed to travel in the transport direction of the transport conveyor, so that the articles carried from the upstream side Can be brought into contact with the belt conveyor to be corrected to an appropriate posture and conveyed to the downstream accumulation conveying means. That is, for example, when the downstream end of the loaded article comes into contact with the belt conveyor, the article is dragged in the running direction of the belt conveyor to be corrected to a predetermined posture. Thus, the posture of the article can be easily corrected by configuring the guide mechanism with a belt conveyor.

  Further, for example, even when an article is caught on the upstream end of the guide mechanism, traveling of the belt conveyor acts to pull the article back to the inside of the transport conveyor, so that the article can be prevented from being caught at the upstream end of the guide mechanism. it can.

  Furthermore, when it is set narrower than the long side of the article to be conveyed between the belt conveyors and the article is to be reliably conveyed in a posture in which the longitudinal direction is directed to the conveying direction, the article has its width direction in the conveying direction. Even when the belt conveyor is loaded and jammed between the belt conveyors, the belt conveyor can be forcibly conveyed to the downstream side by the entrainment action of the belt conveyor, and the article can be smoothly downstream between the belt conveyors without clogging and stopping. Can be conveyed.

  Next, according to the second aspect of the present invention, the guide mechanism is configured such that the distance between the downstream end side and the upstream end side is narrower, so that the frontage can be formed wider, and the article from the upstream side Will be smooth. In addition, the position of the article that is brought in from the center can be corrected at the center of the conveyor.

  In addition, when the guide mechanism is provided in this way, there is a high possibility that the article will be clogged on the downstream side, for example, when the article is conveyed in a posture in which the width direction is the conveyance direction. Therefore, in particular, the effect of preventing clogging of articles by the belt conveyor according to the first aspect of the invention is effective.

  Next, according to the invention described in claim 3, the arrangement position of the pair of belt conveyors constituting the guide mechanism with respect to the transfer conveyor can be adjusted, so that the belt conveyor can be appropriately set according to the shape of the article. The width, the position in the transport direction, and the angle with respect to the transport direction can be arbitrarily set, and smooth transport can be achieved regardless of the type of article.

  Next, according to the fourth aspect of the present invention, the guide mechanism is supported by being suspended from above, so that interference between the guide mechanism and the conveyor can be avoided, and the belt conveyor can be moved from above and below. Since the belt is not supported, the belt can be easily attached and detached, and the workability can be improved.

  Next, according to the fifth aspect of the present invention, since the shaft constituting the belt conveyor is cantilevered at the upper end, the belt can be easily attached and detached. Furthermore, by using the shaft as the member around which the belt is wound, the guide mechanism can be made compact in plan view, and as a result, the frontage can be formed wider.

  Next, according to the invention described in claim 6, by providing the conveyor conveyor and the belt conveyor constituting the guide mechanism with independent drive sources, for example, the traveling speed difference between the conveyor conveyor and the belt conveyor can be reduced. It can be arbitrarily set according to the type of article.

  Next, according to the invention described in claim 7, the posture of the article can be corrected more smoothly by setting the traveling speed of the pair of belt conveyors constituting the guide mechanism to be equal to or higher than the traveling speed of the conveyor. Can be done. That is, when the traveling speed of the belt conveyor is set faster than the traveling speed of the conveyor, the belt conveyor can generate a force that drags the articles on the conveyor further downstream. Can be controlled.

  According to the eighth aspect of the present invention, since the pair of belt conveyors constituting the guide mechanism are provided with independent drive sources, articles are jammed between the belt conveyors, and the belt conveyor forcibly moves downstream. Since the posture of the article can be changed while being rolled up, the posture of the article can be properly corrected and smoothly conveyed even in such a case.

  Embodiments according to the present invention will be described below with reference to the drawings.

  First, as shown in FIG. 1, the production line 1 produces a product in which a plurality of bags X ... X are packed in a cardboard box Y or the like. The bag X is filled with snacks such as potato chips. The production line 1 includes a packaging machine 2, a seal checker 3, and a boxing system 4 as main components.

  The packaging machine 2 is a known vertical pillow packaging machine, which fills a bag X with an article to be packaged that has been weighed by a weighing device (not shown) and discharges the bag X onto the conveyor 10. The discharged bag X is inspected for the seal of the bag X while passing through the seal checker 3 while being conveyed in the direction of arrow a by the conveyor 10. The bag X that has passed through the seal checker 3 is sequentially supplied to the bagging system 4 as indicated by an arrow b.

  The boxing system 4 includes a transfer device 20, an accumulation transfer device 21, and a boxing device 22 in order from the upstream side. As a result, the bag X transported to the boxing system 4 is corrected in posture by the transport device 20 and then transferred to the stacking transport device 21 (arrow b), and the bag X transferred to the stacking transport device 21. X is pushed into a cardboard box Y or the like provided in the boxing device 22 by a pusher mechanism (not shown) or the like (arrow c).

  Next, the structure of the conveying apparatus 20 provided in the boxing system 4 will be described with reference to FIGS.

  The transport device 20 includes a transport mechanism 30 and a guide mechanism 31. The transport mechanism 30 includes a main body case 40, a motor 41 built in the main body case 40, a pair of support members 42 and 42 erected on the main body case 40, and a transport supported by the support members 42 and 42. And a conveyor 43. The conveyor 43 includes a frame member 43a supported by the support members 42 and 42, and a pair of rollers 43c and 43c installed on extended portions 43b and 43b provided at both ends in the conveying direction A of the frame member 43a. A flat belt 43d is wound around the rollers 43c and 43c. A pulley 43e is fitted on the downstream (drive side) roller 43c, and a belt 41c is wound around the pulley 43e and a pulley 41b fitted on the drive shaft 41a of the motor 41.

  On the other hand, the guide mechanism 31 includes a pair of opposed belt conveyors 50 and 50 disposed on both sides of the transport conveyor 43 and a support mechanism 51 for supporting and fixing the belt conveyors 50 and 50 at predetermined positions. ing.

  Each belt conveyor 50 includes a frame 50a extending in the conveyance direction A, a pair of shafts 50b and 50b supported on the frame 50a from above, and a side belt 50c wound around the shafts 50b and 50b. The downstream shaft 50b extends upward through the frame 50a. Further, a plate 50d extending between the shafts 50b and 50b and along the inside of the side belt 50c is provided at the lower part of the frame 50a. The frame 50a has a plurality of holes 50a ′... 50a ′ in the longitudinal direction.

  As shown in FIG. 5, the flange 50d 'of the plate 50d is provided with a pair of openings 60, 60, and is fitted into the openings 60, 60 and holes 50a', 50a 'provided in the frame 50a. Thus, a pair of bolts 61, 61 for fastening the frame 50a and the plate 50d are provided.

  Further, a guide 62 is provided further downstream of the downstream shaft 50b, and the guide 62 is supported by fastening bolts 63, 63 to the frame 50a via a flange 62 '.

  The support mechanism 51 includes a pair of support frames 51a and 51a, and the support frames 51a and 51a are fastened to a base (not shown) with a plurality of bolts 51b. On the other hand, the support frames 51a and 51a are extended upward, a support member 51d is installed between the upper portions of the support frames 51a and 51a, and fastened to the support frames 51a and 51a with bolts 51c. The support member 51d is provided with a pair of two long holes 51d 'and 51d', and is supported through the long holes 51d 'and 51d' and the holes 50a 'and 50a' provided in the frame 50a. The frames 50a and 50a are fastened and fixed to the lower surface of the member 51d with knob bolts 64 and 64, respectively.

  FIG. 6 shows a support mechanism of the belt conveyor 50. According to this, in the shaft 50b on the drive side (downstream side), the support member 70 that rotatably supports the extending portion 50b 'above the shaft 50b is fitted into the frame 50a, and the support member 70 is inserted. Bearings 71 and 71 are provided at the upper and lower ends, respectively. The extending portion 50b 'extends further upward through a locking portion 50b "provided above the frame 50a. On the other hand, a cover member 72 is provided on the upper portion of the frame 50b with a plurality of bolts 73. 73, and a drive motor 74 is mounted and fixed on the upper surface of the cover member 72. A drive shaft 74a of the drive motor 74 projects downward, and this drive The shaft 74a and the extended portion 50b 'of the shaft 50b are connected via a coupling 75. The driven side (upstream side) shaft 50c is similarly connected to the extended portion 50b' via the support member 70. Is configured to reach the frame 50a.

  FIG. 7 shows a control system of the boxing system 4 according to the present invention. First, a control unit 80 is provided, and various signals are input and output between the control unit 80 and each unit. A photoelectric sensor 81 is provided between the conveyance device 20 and the accumulation conveyance device 21, and the control unit 80 inputs a detection signal from the photoelectric sensor 81, an input device 82, and the like. In addition, the control unit 80 outputs signals to the motor 41 and the driving motor 75 provided in the transport device 20, the integrated transport device 21, the bagging device 22, and the like.

  Next, the effect by the boxing system 4 which concerns on this invention is demonstrated.

  First, the input device 82 sets the traveling speed of the transport conveyor 43 and the belt conveyors 50, 50 of the transport apparatus 20, and drives the motor 41 and the driving motor 74 so as to realize the traveling speed. At this time, for example, the traveling speed of the belt conveyors 50 and 50 is set to about 1.5 times the conveying speed of the conveying conveyor 43.

  On the other hand, the support member 51c provided in the support mechanism 51 is provided with elongated holes 51d 'and 51d', and the fastening positions of the elongated holes 51d 'and 51d' by the knob bolts 64 and 64 are perpendicular to the conveying direction A. The distance between the belt conveyors 50 and 50 can be arbitrarily adjusted. At the same time, the angle of the belt conveyor 50 with respect to the conveyance direction A can be arbitrarily adjusted by adjusting the fastening position. Further, in the holes 50a ′... 50a ′ provided in the frame 50a, the position of the belt conveyor 50 in the transport direction A can be adjusted by arbitrarily selecting the fastening position by the knob bolts 64, 64. As described above, the position of the belt conveyor 50 with respect to the transport conveyor 43 can be adjusted, so that smooth transport can be achieved regardless of the type of the bag X, particularly the dimensions.

  Further, the belt conveyors 50 and 50 have a narrower gap on the downstream side than the upstream side, thereby widening the opening so that the bag X can be easily carried from the upstream side, and the position of the bag X with respect to the transport conveyor 43 is set at the center. Can be corrected to the side. In addition, you may arrange | position the belt conveyors 50 and 50 mutually in parallel.

  Further, since the belt conveyor 50 is supported by being suspended from above by the support mechanism 51, it is possible to prevent interference between the belt conveyor 50 and the transport conveyor 43, and at the time of replacement or maintenance of the side belt 50c. Compared to those supported from above and below, the operation becomes easier. In particular, since the structure in which the shafts 50b and 50b are cantilevered from the upper end by the support member 70 is adopted, the side belt 50c can be easily attached and detached, and the members around which the side belt 50c is wound are the shafts 50b and 50b. As a result, the guide mechanism 31 can be made compact in plan view, and as a result, the gap between the belt conveyors 50 and 50 can be formed wider. Further, by reducing the size of the guide mechanism 31 in this way, it can be handled like a conventional plate-shaped guide.

  As shown in FIG. 8, when the bag X carried from the upstream conveyor 10 is transported by the transport conveyor 43, the position of the bag X is disturbed or the position relative to the transport conveyor 43 is shifted from the center. When the bag X is carried in the state, the downstream end of the bag X abuts on the belt conveyors 50 and 50, so that the bag X is dragged by the belt conveyor 50, and the posture of the bag X is corrected appropriately to the downstream side. Can be transferred to the stacking and conveying apparatus 21. At this time, by setting the motor 41 and the driving motors 74 and 74 so that the traveling speed of the belt conveyors 50 and 50 is equal to or higher than the traveling speed of the transport conveyor 43, the bag X is smoothly transported while correcting the posture of the bag X. be able to.

  At this time, by providing separate drive sources 41, 74, and 74 for the conveyor 43 and the belt conveyors 50 and 50 as described above, the respective traveling speeds or the drag force of the bag X can be changed depending on the type of the article. It can be arbitrarily adjusted according to.

  On the other hand, when the distance between the belt conveyors 50 and 50 on the downstream side from the upstream side is set to be narrower than the short side of the bag X and narrower than the long side of the bag X, the bag X has the width direction as the transport direction. Even when transported in such a posture, as shown in FIG. 9, the bag X can be forcibly delivered to the downstream side by the entrainment of the belt conveyors 50 and 50. As described above, since bagging does not occur, it is possible to prevent the occurrence of a situation in which the apparatus in all processes must be stopped due to bagging, and productivity can be improved.

  Furthermore, as shown in FIG. 10, by providing a speed difference between the traveling speeds V and V ′ of the belt conveyors 50 and 50 ′, it is possible to prevent clogging due to the entraining action of the belt conveyors 50 and 50 ′. The action of correcting the posture of the bag X is also obtained. That is, when V> V ′ is set at the traveling speed V of the belt conveyor 50 and the traveling speed V ′ of the belt conveyor 50 ′, when the bag X loaded in the posture with the width direction as the transport direction is rolled up, the bag X Is rotated in the transport direction A side with the contact portion of the belt conveyor 50 'having the slower traveling speed as a fulcrum. As a result, it is possible to correct the bag X carried in with the posture with the width direction as the transport direction to the posture with the longitudinal direction as the transport direction. This can be achieved by providing independent drive motors 74, 74 on the belt conveyors 50, 50 '.

  Further, as shown in FIG. 11, even if the bag X is loaded so as to be hooked on the upstream end of the belt conveyor 50, the bag X is brought into contact with the traveling side belt 50 c and pulled back to the center side of the transport conveyor 43. Will be. This can prevent clogging at the upstream end of the belt conveyor 50.

  The plate 50d is provided to prevent the side belt 50c from being bent by the contact of the bag X with the belt conveyor 50. Thereby, the force which drags the bag X by the belt conveyor 50 can be accurately controlled regardless of the contact position of the bag X to the side belt 50c.

  On the other hand, the guide 62 may be provided in a range where the belt conveyor 50 does not reach, can complement the contact portion of the bag X to be transported, and further allows the bag X corrected by the belt conveyor 50 to a predetermined posture. It can be stably carried out downstream. Further, although the upper guide 62 in the example is arranged in parallel to the transport direction A, it can be adjusted to a predetermined angle with respect to the transport direction A.

  According to the present invention, it is possible to provide a boxing system capable of correcting an article carried from the upstream side into an appropriate posture and preventing bag clogging. The present invention relates to a boxing system for packing a bag containing potato chips or the like into a cardboard box or the like, and is widely suitable for the technical field of article packing.

It is a schematic plan view of the production line which concerns on this invention. It is a top view of a conveying apparatus. It is the same front view. It is the same side view. It is explanatory drawing which shows the structure of a belt conveyor. It is explanatory drawing which shows the support mechanism of the shaft which comprises a belt conveyor. It is a block diagram which shows the control system of a boxing system. It is a schematic diagram which shows the attitude | position correction effect | action of a conveying apparatus. It is a schematic diagram which shows the same bag clogging prevention effect. It is a schematic diagram which shows the clogging prevention effect when the difference is provided in the running speed of the both belt conveyors. It is a schematic diagram which shows the bag clogging prevention effect | action in the belt conveyor upstream end. It is explanatory drawing which shows the guide in a prior art. It is explanatory drawing which shows the problem of the article | item clogging in a guide upstream end. It is explanatory drawing which shows the problem of the article | item clogging in an inclined surface.

Explanation of symbols

4 Boxing system 20 Conveying device (conveying means)
21 Stacking and transporting device (stacking and transporting means)
22 Bag filling device (boxing means)
31 Guide Mechanism 43 Conveyor 50 Belt Conveyor 50b Shaft 50c Side Belt (Belt)
41 Motor (drive source)
74 Drive motor (drive source)
X Bag (goods)

Claims (8)

  Conveying means for conveying articles carried in from the upstream side to the downstream side, stacking conveying means for conveying a predetermined number of articles sequentially carried in from the means to the downstream side in a group of predetermined postures, and conveying means And a boxing system for packing a group of articles into a box, wherein the transfer means has a transfer conveyor for loading and transferring the articles and a guide mechanism for correcting the posture of the articles. The guide mechanism is composed of a pair of opposed belt conveyors disposed on both sides of the conveyor, and the mutually opposing surfaces of the belt conveyor can run in the conveying direction of the conveyor. A boxing system characterized by   The boxing system according to claim 1, wherein the pair of belt conveyors constituting the guide mechanism is configured such that a distance between the upstream end side and the downstream end side is narrower.   The boxing system according to claim 1 or 2, wherein the arrangement position of the pair of belt conveyors constituting the guide mechanism with respect to the conveyor is adjustable.   The boxing system according to any one of claims 1 to 3, wherein the pair of belt conveyors constituting the guide mechanism are supported by being suspended from above.   Each belt conveyor constituting the guide mechanism has a configuration in which a belt is wound around a pair of shafts arranged in the conveyance direction, and the shaft is rotatably supported at the upper end via a bearing. The boxing system according to claim 4.   The boxing system according to any one of claims 1 to 5, wherein an independent drive source is provided for each of the conveying conveyor and the pair of belt conveyors constituting the guide mechanism.   The boxing system according to claim 6, wherein the traveling speed of the pair of belt conveyors constituting the guide mechanism is set to be equal to or higher than the traveling speed of the transport conveyor. The boxing system according to claim 6 or 7, wherein the pair of belt conveyors constituting the guide mechanism are each provided with an independent drive source.

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