JP6529946B2 - Stacking device for continuous packaging bag - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a folding device for folding a continuous wrapping bag in which a plurality of pouches are connected.

  Multiple sachets packaging soup, seasoning, miso, etc. are connected to form continuous bags, and the continuous bags are combined with the main food and added together in bags or small boxes, or multiple continuous bags of different varieties such as miso Packaging forms are known, such as putting together and packing in bags and small boxes. The continuous bag is folded before packing so that it is easy to pack. As a device for folding such a continuous bag, Patent Document 1 discloses a pouch in a continuous bag erected on a mounting table. An apparatus is shown in which each pouch is folded by being hooked with a support pin by means of a support pin, and is advanced while being compressed between the support pins, and the folded pouch is compressed from the stacking direction and fed out from the delivery position.

Patent No. 5432949 gazette

  In the folding apparatus disclosed in Patent Document 1, it is necessary to place the continuous packaging bag upright on the mounting table, and the folding apparatus is linearly connected downstream of the vertical form-fill-seal machine that manufactures the continuous packaging bag. In addition, there is a problem that it is not possible to continuously carry out the process from continuous bag production to folding. In addition, since the mechanism for moving and scaling the support pin is adopted, there is a problem that the size of the apparatus is increased.

  SUMMARY OF THE INVENTION In view of the above problems associated with the prior art, the present invention has been proposed to solve these problems suitably, and the straight line downstream of the packaging machine for continuous package bags such as vertical form-fill-seal machines It is an object of the present invention to provide a folding device of a continuous packaging bag which can be connected in a connected manner and which can achieve miniaturization of the device.

In order to overcome the above-mentioned problems and to achieve the intended purpose, the folding device of the continuous wrapping bag of the invention according to claim 1 of the present application is:
A continuous packing bag in which a plurality of sachets are connected via a connecting portion, and a winding bed which can be placed in a lying position,
The wrapping bag is provided with a winding member capable of adsorbing the pouch and supporting the pouch with a predetermined width that can be bent at the connection portion, and the winding bag having adsorbed the pouch at one end of the wrapping bag placed on the winding bed The attaching member is rotated in a certain direction while moving toward the pouch at the other end of the continuous packet, and the continuous packet is wound at the connection portion so that the pouch is folded in the thickness direction of the winding member Bag stacking means for winding around the attaching member;
The continuous packaging bag wound around the winding member may be moved relative to the winding member in the direction of the rotational axis of the winding member, and may be removed from the winding member.
According to the first aspect of the present invention, the continuous packaging bag placed in the posture of lying on the winding bed is folded around the winding member in the state of being bent at the connection portion, thereby folding the plurality of pouches. Therefore, the compactness of the folded portion does not increase the size of the device. For example, the continuous bag produced and discharged by the bagging and filling machine such as a vertical form-filling machine can be laid horizontally and received and folded in a continuous posture. That is, the folding device can be linearly connected downstream of the packaging machine that manufactures the continuous packaging bag, and the manufacturing from the continuous packaging bag to the folding can be configured by a series of straight manufacturing lines.

In the invention according to claim 2, when the continuous packaging bag is wound around the winding member, the winding member is rotated 90 degrees while moving the half of the length of the pouch, and from the lowered position close to the winding bed Ascending to a rising position above the lowered position, and thereafter rotating the winding member 90 degrees in the same direction while moving the winding member from the raised position to a half of the length of the pouch, and lowering to the lowered position, It is characterized in that the winding member is configured such that the bag stacking means operates so that the winding member repeats from the winding start to the winding end of the continuous wrapping bag.
According to the invention as set forth in claim 2, since the winding member having suctioned the small bag is configured to repeat the movement of rotating 180 degrees while moving up and down while moving the length of each small bag, the winding member Can be folded and wound with each pouch as a base point without changing the winding condition of the pouch unit at the time of winding, and a plurality of pouches are not influenced by different waist strengths such as thickness and material of the packaging material The bag can be folded up well.

In the invention according to claim 3, there is provided an adsorbing portion for adsorbing the lower surface of the pouches at both ends where the continuous packaging bags placed on the winding bed are continuous, and in the adsorbing portion, the winding member is one end of the pouch While suctioning the upper surface, the suction of the lower surface of the pouch is released, and the suction of the lower surface of the other end pouch is released with the end of winding of the continuous packaging bag by the winding member. Do.
According to the invention as set forth in claim 3, since the suction section is configured to adsorb the pouches at both ends where the continuous packaging bags placed on the winding bed are laid, the start of winding of the continuous packaging bag by the winding member The bag can be held in tension between the winding member and the winding bed from the winding end to the winding end, and a plurality of connection points can be used as a starting point without causing slack in the continuous wrapping bag during winding. The bag can be folded up well.

In the invention according to claim 4, the bag stacking means includes a robot having two degrees of freedom in which the hand unit can move to an arbitrary coordinate in the vertical plane, and the hand rotates with the rotational axis oriented in the horizontal direction. A winding member which is rotated by a motor is provided.
According to the invention of claim 4, since the winding member is configured to be movable to any coordinate in the vertical plane by the robot, folding processing of continuous bags of various types, such as types having different pouch lengths, is performed. As well as being able to easily switch over, it is possible to fold the continuous packing bag with good accuracy.

In the invention according to claim 5, the extraction means is configured to support the left and right end portions of the continuous wrapping bag wound around the winding member to relatively move the continuous wrapping bag in the rotational axis direction of the winding member. It is characterized by having done.
According to the invention of claim 5, since the continuous wrapping bag wound around the winding member is configured to be supported by the left and right sides of the winding member and removed, the folding width of the continuous wrapping bag, the folded-over, and the like at the time of extraction It is possible to feed the post-processing means connected downstream without distortion of the state as it is without disturbing the state.

In the invention according to claim 6, the extraction means has an accommodating portion capable of accommodating the continuous wrapping bag wound around the winding member below the mounting surface of the winding bed adjacent to the winding bed. And
The bag stacking means is directed rearward in the moving direction of the winding member while the small bag at the other end of the continuous wrapping bag wound around the winding member is supported by the mounting surface of the winding bed. It is characterized in that the winding member is lowered so as to move and move the continuous packaging bag in the storage section.
According to the invention of claim 6, since the pouch folded lastly on the winding member is supported on the placement surface so as to move rearward in the moving direction at the time of winding, the pouch is unwound As a result, the continuous packaging bag can be favorably delivered to the extraction means without the folded state being disturbed.

The invention according to claim 7 is provided with a feed conveyor having a plurality of transport units for placing and transporting the continuous packaging bags in a laid posture in which the small bags are continuous in the front and back of the transport direction,
The feed conveyor controls the traveling of the transport unit of each row in accordance with the difference in the timing of receiving the continuous packet into the transport units of each row, and aligns the transport tip positions of the plurality of rows of continuous package bags. Configure
The winding member is set to have a length such that multiple rows of continuous packaging bags aligned by the supply conveyor and transferred to the winding bed can be wound at one time.
According to the invention as set forth in claim 7, it is possible to align the plurality of continuous packaging bags in a row, perform the folding process on the plurality of continuous packaging bags at one time, and greatly increase the number of processes per unit time. it can.

  ADVANTAGE OF THE INVENTION According to the folding apparatus of the package bag which concerns on this invention, folding of a package bag can be performed favorably by easy structure.

It is a schematic front view which fractures | ruptures and shows partially the winding-up means and extraction means of the folding apparatus of the serial packaging bag which concerns on the Example of this invention. It is a schematic side view which shows the winding means of an Example. It is a schematic plan view which shows the supply conveyor and winding bed of the folding apparatus of an Example. It is a schematic front view which shows the transfer robot of a folding apparatus of an Example, a supply conveyor, and a winding bed. It is a schematic side view which shows the extraction means of the folding apparatus of an Example. It is explanatory drawing which shows the process of winding a continuous packaging bag on the winding member of an Example, and folding up a sachet.

  Next, an apparatus for folding a continuous wrapping bag according to the present invention will be described below by way of an embodiment with reference to the attached drawings. In the embodiment, a continuous bag in which four sachets are connected will be described by taking an example of folding at once in a state of being aligned side by side in four rows.

  As shown in FIGS. 1 and 2, the folding apparatus includes a winding bed 20 on which a continuous packaging bag 11 in which four pouches 10 are connected and connected at a connection portion is placed in a lying position, and the winding bed 20. A bag stacking means 27 for winding the placed continuous bag 11 around the winding member 31 and folding the pouch 10, and a winding member 31 for winding the continuous bag 11 obtained by winding the pouch 10 by winding around the winding member 31 And a withdrawal means 32 for taking it out. Further, as shown in FIG. 3 and FIG. 4, the folding apparatus is provided with a feeding conveyor 13 for transporting the continuous bag 11 manufactured by a packaging machine comprising a bagging machine such as a vertical form-filling machine in a lying position. The continuous packaging bag 11 transported to the transport end portion of the supply conveyor 13 is transferred by the transfer means 16 in a posture as lying on the winding bed 20. In the packaging machine, a strip-like film fed from a film roll is formed into a tubular shape by a bag making device, and the tubular film is fed along the outer periphery of a vertical filling tube and vertically sealed on one side And a filling material such as miso, soup or seasoning is dropped and supplied to the bottomed bag portion sealed in an end-sealed direction crossing the conveying direction of the cylindrical film through the filling cylinder, and the cylindrical film An end seal and a perforation are provided on the upper side of the filling of the tubular film in accordance with the intermittent stop timing after the length feeding. When this operation is repeated a plurality of times, a plurality of pouches filled with the filler are connected in series between the end seals formed at predetermined intervals in the transport direction. Then, the continuous bag 11 in which four sachets 10 in which miso, soup, seasoning and the like are bagged are connected is divided into individual sachets 10 by discontinuous cuts such as perforations 12 serving as connection parts of the respective sachets 10. Consecutively, the continuous packaging bags 11 divided in units of four bags are converted into a lying posture through a discharging means such as a transport conveyor or a chute and discharged. Hereinafter, in the embodiment, for convenience, the front in the transport direction of the supply conveyor 13 is also referred to as “front” and the rear in the transport direction as “rear”.

  As shown in FIG. 3, the supply conveyor 13 includes a first conveyor 14 and a second conveyor 15 connected in series, and four packing machines are connected upstream of the first conveyor 14 on the upstream side. The continuous bag 11 discharged from each packing machine is fed to the supply conveyor 13 in a lying posture in which the pouches 10 are continuously connected back and forth. The first conveyor 14 is configured by arranging in parallel the endless conveyors 14a as transport units in the same number as the packaging machines in the lateral direction, and the continuous packaging bags 11 discharged from the respective packaging machines are connected row by row Accept to endless conveyor 14a. Further, the traveling belts of the endless conveyors 14a of the first conveyor 14 are configured to be controlled to travel by the separate servomotors 14b, and illustrate the difference in the reception timing of the continuous bag 11 to the endless conveyors 14a. The traveling speed is controlled so that the conveyance speed of each endless conveyor 14a is changed or the traveling is stopped by the detection sensor which does not detect the start, and the leading end in each continuous packing bag 11 fed from the first conveyor 14 to the second conveyor 15 The transport tip position of the pouch 10 is aligned. The second conveyor 15 includes a wide endless belt for receiving and transferring the four rows of continuous packaging bags 11 fed from the first conveyor 14 in the side-by-side alignment state, and the four rows of chains fed from the first conveyor 14 The packaging bags 11 are transported as a group to the transport end. The first pouch (a pouch at one end) 10a, a second pouch 10b, a third pouch 10c, and a third pouch 10 of the packet bundle 11 conveyed by the supply conveyor 13 are arranged in the order from the conveyance downstream side toward the upstream side. It may be called 4 sachet (a sachet at the other end) 10d.

  As the transfer means 16 for transferring the continuous packing bag 11 from the supply conveyor 13 to the winding bed 20, in the embodiment, the transfer hand portion 17 can be moved to any coordinate in the vertical plane in two degrees of freedom The transfer robot 16 which has is used. In this transfer robot 16, as shown in FIG. 4, a second arm 16b constituting a second parallel link mechanism is linked to a first arm 16a constituting a first parallel link mechanism, and The transfer hand unit 17 is provided at the end of the second arm 16b, and the transfer hand unit 17 is moved with two degrees of freedom in the vertical plane by the servomotor linked to the arms 16a and 16b. Be configured to In addition, the transfer robot 16 adsorbs the upper surfaces of the first pouch 10a at one end and the fourth pouch 10d at the other end of the continuous packet 11 in each row in the transfer hand unit 17 at least. A suction means 19 with a pad 18 is provided. The suction means 19 of the embodiment comprises three suction pads 18 for suctioning the three pouches of the first pouch 10a, the third pouch 10c and the fourth pouch 10d. Then, when it is detected by the detection sensor (not shown) that the continuous packing bag 11 has reached the transport end of the second conveyor 15, the transfer robot 16 is operated and each continuous packing on the second conveyor 15 With respect to the bag 11, the suction pads 18 of the suction means 19 are configured to respectively suck the three pouches 10 in the four rows of continuous packing bags 11 and transfer them while maintaining the alignment state on the winding bed 20. .

  As shown in FIG. 3 or FIG. 4, the winding bed 20 has the four rows of continuous packaging bags 11 transferred by the transfer robot 16 at a position spaced forwardly from the transport end of the second conveyor 15. A mounting surface 21 of a mountable size is disposed below the transport surface of the second conveyor 15. In the winding bed 20, a suction pad as a suction unit 23 that sucks the continuous bag 11 placed by the transfer robot 16 in the same manner as the suction pad 18 as the suction pads 18 of the lower surface (loading surface) of the three pouches 10. Are provided corresponding to the through holes 22.

  As shown in FIG. 2, in the suction unit 23, suction units corresponding to the number of continuous packaging bags 11 aligned in the lateral direction are disposed such that suction ports face upward with respect to a common support member 24. Then, by moving up and down the support member 24 by the air cylinder 25, the suction unit 23 is positioned between the position where the upper edge is retracted downward from the mounting surface 21 and the position where the upper edge protrudes above the mounting surface 21. It is configured to move up and down integrally. In the embodiment, the supporting member 24 and the air cylinder 25 constitute the elevating means 26 of the suction unit 23.

  The bag stacking means 27 is rotatably supported by a winding robot (robot) 28 having two degrees of freedom capable of moving the hand portion 29 to arbitrary coordinates in a vertical plane, and the winding hand portion 29. And a winding member 31. As shown in FIG. 1, the winding robot 28 is provided at the end of the second arm 28b by a servomotor linked to the first arm 28a and the second arm 28b, similarly to the transfer robot 16. The winding hand portion 29 is configured to be movable with two degrees of freedom in the vertical plane. In the winding robot 28, the winding hand unit 29 is provided with a drive motor 30 such as a servomotor for rotating the winding member 31 supported by the hand unit 29. The winding robot 28 can freely change the position of the winding member 31 in the two-dimensional coordinate system and change the moving speed freely by changing the amount of rotation, the rotation direction, the rotation speed, etc. of each servomotor. It is supposed to be able to In the embodiment, the first arm 28a and the second arm 28b are respectively rotated by servomotors while keeping the posture of the winding hand 29 constant by the first and second parallel link mechanisms. By changing the crossing angle of the arms 28a and 28b, the winding hand unit 29 is moved in the front-rear direction and in the up-down direction.

  As shown in FIG. 1, the winding member 31 is set to have a width dimension shorter than the front-rear length of the pouch 10 so that the continuous packet 11 can support the pouch 10 with a predetermined width that can be bent at the perforation 12. It is a hollow flat bar-like member, and the rotation axis is in the horizontal direction, and is supported by the winding hand 29 in a cantilever manner. The winding member 31 of the embodiment extends with a length capable of winding four pouches 10 connected to the four rows of continuous packaging bags 11 placed on the winding bed 20, as shown in FIG. Further, the winding member 31 is configured to be thin so that when the continuous bag 11 is wound, the continuous bag 11 is bent at the perforation 12 and the pouch 10 can be folded in the thickness direction of the winding member 31. . The winding member 31 is connected to a suction source (not shown), and a suction port is provided on one side surface 31 a in the thickness direction, and can suction the upper surface of the pouch 10 by the suction force from the suction port generating negative pressure. Configured.

  The bag stacking means 27 presses one side surface 31a of the winding member 31 against the upper surface of the first pouch 10a of the continuous packet 11 placed on the winding bed 20 to wind the upper surface of the first pouch 10a. The perforation 31 is rotated while moving toward the fourth pouch 10d at the other end while moving the winding member 31 which is attracted to one side surface 31a of the member 31 and lifted to lift the first pouch 10a. Operation control of the winding robot 28 and the drive motor 30 is performed so that the continuous bag 11 bent from 12 is wound around the winding member 31 so that the pouches 10 are folded in the thickness direction of the winding member 31. Specifically, the bag stacking means 27 operates the winding robot 28 and the drive motor 30 to control the winding robot 28 and the drive motor 30, and as shown in FIG. While rotating laterally by half of the length of the pouch 10, it rotates 90 degrees and rises from the adsorption position S1 where the first pouch 10a is adsorbed to a rising position S2 spaced upward from the mounting surface 21 of the winding bed 20, 90 From the raised position S2 to the lowered position S3 close to the winding bed 20 while continuing to move in the same direction while moving horizontally by half of the length of the small bag 10 from the rotational position of 30 degrees. The process is repeated from the start of winding 11 to the end of winding (the fourth pouch 10d is folded). That is, at the suction position S1 and the lowering position S3, the winding member 31 is in a lying posture in which one side 31a or the other side is opposed to the upper surface of the pouch 10 directly or through the pouch 10. The continuous packaging bag 11 is in a standing posture in which the continuous packaging bag 11 can be bent at the perforations 12 above. The suction position S1 is the lowering position of the winding member 31 with respect to the first pouch 10a, and the winding member 31 rotates while moving in the connecting direction in which the pouches 10 are connected to one another. Repeat the up and down movement of to fold the pouch 10 over. Further, the bag stacking means 27 supports the winding member 31 by the mounting surface 21 of the winding bed 20 with the fourth pouch 10d at the other end (final) after the winding of the continuous packaging bag 11 by the winding member 31 is completed. The winding robot 28 is operated and controlled so as to move backward in the direction of movement at the time of winding without rotating while maintaining the above position. The lowering position S3 of the winding member 31 is changed according to the number of the pouches 10 already folded on the winding member 31. The folded continuous bag 11 is referred to as a folded continuous bag 11a.

  Here, the adsorption unit 23 adsorbing the lower surface of the first pouch 10a releases the adsorption of the lower surface of the first pouch 10a as the winding member 31 adsorbs the upper surface of the first pouch 10a. At the same time, the suction of the lower surface of the fourth pouch 10d is released with the end of winding of the continuous packaging bag 11 by the winding member 31.

  The extraction means 32 is disposed adjacent to the winding bed 20 at the rear in the moving direction of the winding by the winding member 31, as shown in FIG. 1 and FIG. Further, in the extraction means 32, the accommodating portion 33 for accommodating the folded continuous packet 11 a corresponds to the winding position of the folded continuous packet 11 a wound around the winding member 31. The winding member 31 is provided below the mounting surface 21 and is folded down to the upper side of the accommodation portion 33 by the completion of the folding of the fourth pouch 10d at the other end, thereby accommodating the folded continuous packet 11a. It accommodates in the part 33. Each housing portion 33 is provided with a pair of partitions 34, 34 that can be separated in the rotational axis direction of the winding member 31 to support the left and right edges of the folded continuous packet 11a, and is folded between the partitions 34, 34 The stacked continuous wrapping bag 11a is accommodated. Each partition 34 is formed with a recess 34a which is wider than the width of the winding member 31 and opens upward and allows entry of the winding member 31 from the upper side, and the winding member 31 is formed on the recess 34a. In the state where it faced, the partition 34 is configured to be positioned on the left and right sides of the folded continuous packaging bag 11 a housed in the housing portion 33.

  Each housing portion 33 is disposed on a movable body 35 supported so as to be movable in the rotational axis direction of the winding member 31. The movable body 35 (housing portion 33) includes a ball screw 36 and a servomotor 37. A receiving position (solid line position in FIG. 5) for receiving the folded continuous wrapping bag 11a from the bag stacking means 27 by the lateral moving means 38, and a discharging position for the post-processing means separated from the receiving position (FIG. It is configured to move back and forth between the two-dot chain line position). That is, the folded continuous packaging bag 11a accommodated in each accommodation unit 33 at the receiving position is moved along the rotation axis with respect to the winding member 31 and moved along with the movement of the accommodation unit 33 to the discharge position. It is configured to be extracted in order from the free end side of the member 31 and to be retained in the housing portion. In the embodiment, the housing portion 33 and the lateral movement means 38 are configured as the extraction means 32 for extracting the folded continuous wrapping bag 11 a from the winding member 31.

  At the same time as the discharge position of the storage portion 33, an extrusion means for pushing out the folded continuous wrapping bag 11a stored in each storage portion 33 in a direction intersecting the extraction direction from the winding member 31 is disposed. An unloading conveyor is disposed as a post-processing means provided with buckets for storing the four rows of folded continuous wrapping bags 11a extruded by the extrusion means individually in a folded state and transporting them downstream as a group.

  Next, the operation of the folding device for continuous packaging bags according to the embodiment will be described. The continuous bag 11 of each row manufactured by the four packaging machines is received by the endless conveyors 14a of the first conveyor 14 in a posture in which four small bags 10 are connected by perforations 12 and are laid back and forth in succession. In the first conveyor 14, the traveling of each endless conveyor 14 a is controlled according to the reception timing of the continuous packet 11 of each row detected by the detection sensor corresponding to each endless conveyor 14 a, and the first conveyor 14 is different. The four rows of continuous packet 11 received at the timing are aligned in the transport tip position of the leading pouch 10 by the time they are fed to the second conveyor 15, and the four continuous packets 11 are aligned side by side. In the state, the sheet is conveyed by the second conveyor 15 to the conveyance end (see FIG. 3). When the detection sensor detects that the four rows of continuous packaging bags 11 have arrived at the transport end of the second conveyor 15, the transfer robot 16 operates to set the continuous packaging bags 11 of each row on the second conveyor 15. The upper surface of the first pouch 10a, the third pouch 10c and the fourth pouch 10d in the second embodiment is adsorbed by the suction pad 18 of the transfer robot 16 to lift the continuous bag 11 from the second conveyor 15 and align it on the winding bed 20. Transfer in state.

  The elevating means 26 raises the suction portion 23 to a projecting position when the continuous packaging bag 11 is transferred onto the mounting surface 21 of the winding bed 20 by the transfer robot 16, and the lifting pad 26 is moved by the suction pad 18. The lower surfaces of the three pouches 10 whose upper surfaces are adsorbed are adsorbed by the corresponding adsorption portions 23. As a result, the continuous packaging bag 11 transferred to the winding bed 20 is held at a fixed position without positional deviation.

  When the continuous packing bag 11 is placed on the winding bed 20, one side surface 31a of the winding member 31 is pushed by the winding robot 28 onto the upper surface of the first bag 10a held by suction by the suction unit 23. The upper surface of the first pouch 10a is attracted to one side surface 31a of the winding member 31 (FIG. 6 (a)). The winding member 31 having adsorbed the first pouch 10a rotates while moving from the adsorption position S1 toward the second pouch 10b, and ascends until it rotates by 90 degrees and descends until it rotates from 90 degrees to 180 degrees. As the continuous bag 11 is bent at the perforation 12 which is a connecting portion between the first pouch 10a and the second pouch 10b as a base point and wound around the winding member 31, The side is pressed against the upper surface of the second pouch 10b (FIG. 6 (b)). The winding member 31 further rotates while moving toward the third pouch 10c, and ascends until it rotates 270 degrees, and descends until it rotates from 270 degrees to 360 degrees. By moving by the amount of the bag length + folding amount, the continuous bag 11 is bent around the perforation 12 which is a connecting portion between the second pouch 10b and the third pouch 10c and wound around the winding member 31. At the same time, the first pouch 10a wound around the winding member 31 is folded so that the first pouch 10a wound around the winding member 31 is positioned on the upper side of the third pouch 10c suction-held on the winding bed 20 and sandwiched by the winding bed 20. (FIG. 6 (c)). Then, the winding member 31 further rotates while moving toward the fourth pouch 10d, and ascends until it rotates by 450 degrees, and descends until it rotates from 450 degrees to 540 degrees, so that the pouch 10 is By moving the movement amount corresponding to the length of three bags, the second pouch 10b wound around the winding member 31 is superimposed on the upper side of the fourth pouch 10d adsorbed and held on the winding bed 20. It is folded over (FIG. 6 (d)).

Here, the suction unit 23 suctioning the lower surface of the first pouch 10a is retracted downward from the mounting surface 21 of the winding bed 20 as the first pouch 10a is adsorbed by the winding member 31. When the suction portion 23 for releasing the suction of the first pouch 10a and sucking the lower surface of the third pouch 10c is lifted from the placement surface 21 by the rotation of the winding member 31, the winding bed 20 is removed. The suction force of the third pouch 10c is released by retracting downward from the placement surface 21 of the second pouch 10c. Further, the fourth pouch adsorption unit 23 is adsorbed to the lower surface of the 10d is retracted from the lower mounting surface 21 of the winding end Warini with winding bed 20 of Rentsutsumibukuro 11 by winding member 31, the The suction of the fourth pouch 10d is released.

  When the wrapping robot 11 wraps the continuous wrapping bag 11 around the wrapping member 31 so that the four pouches 10 are folded in the thickness direction, the winding robot 20 places the wrapping bed 20 in a posture in which the fourth pouch 10d at the other end is laid. The winding member 31 in the lying position while supported by the surface 21 is moved laterally so as to retract in the opposite direction to the forward movement direction at the time of winding without moving up and down. Then, after the support of the lower surface of the folded continuous packaging bag 11a by the mounting surface 21 is released, the winding member 31 is lowered to make the winding member 31 face the recess 34a of the storage portion 33 of the extraction means 32. In the folded state, the folded continuous packaging bag 11a is accommodated in the corresponding accommodating part 33 (see FIG. 5). When the folded continuous packet 11a is stored in the storage portion 33, the lateral movement means 38 operates to move the storage portion 33 from the receiving position to the discharge position, thereby sandwiching the winding member 31 in the partition 34. The folded continuous packaging bag 11 a supported on the left and right sides is removed from the winding member 31 together with the housing portion 33. Then, after the storage unit 33 moves to the discharge position, the folded continuous wrapping bag 11a is pushed out sideways from each storage unit 33 by the pushing means at the discharge position, and the folded continuous wrap bag transferred to the bucket of the discharge conveyor 11a is conveyed downstream in a folded state by an unloading conveyor. In addition, the winding member 31 returns to the initial state in which the suction port (one side surface 31a) is directed downward, and waits for the next winding at the winding start position (S4 in FIG. 1).

  In the folding apparatus of the embodiment, the continuous bag 11 discharged from the packaging machine is configured to be connected by the perforation 12 while lying down and fold the plurality of continuous small bags 10, so that the continuous bag by the packing machine From the manufacture of 11 to the folding process can be constituted by a series of straight conveying lines. Further, since the continuous packaging bag 11 placed on the winding bed 20 is wound around the winding member 31 rotating while moving in the connecting direction in which the pouches 10 are continuous, the apparatus can be simplified, and the compactness can be achieved. Can be implemented. Furthermore, when the continuous packaging bag 11 is wound around the winding member 31, the winding member 31 having the first pouch 10a adsorbed thereon is moved up and down while moving the length of the pouch 10 and rotated 180 degrees. Because the wrapping state of the pouch unit does not change, the folding based on the perforation 12 of each pouch 10 depends on the strength of different waists, such as the thickness and the material of the packaging material. It can be done well without

  Until the fourth pouch 10d at the other end of the continuous packet 11 placed on the winding bed 20 is folded up, at least the lower surface of the fourth pouch 10d is held by suction so that the winding member 31 The plurality of pouches 10 can be favorably folded with the perforation 12 as a base point without bending at the connecting portion of the continuous bag 11 from the winding start to the winding end of the continuous bag 11. In addition, the winding member 31 in which the continuous packaging bag 11 has been wound is moved rearward in the moving direction at the time of winding in a state where the fourth pouch 10d is supported in a posture lying on the placement surface 21 of the winding bed 20. As the bag 10 is moved to the removing means 32, the folded continuous wrapping bag 11a can be delivered to the removing means 32 without any slack or slack in the pouch 10 without being disturbed or unwound. That is, in the state where the fourth pouch 10d at the other end is folded up, as shown in FIG. 6 (d), the open end of the fourth pouch 10d faces the front in the moving direction at the time of winding. The fourth pouch 10d is not unwound as it is moved. Furthermore, since the storage portion 33 of the extraction means 32 is disposed below the mounting surface 21 of the winding bed 20, the third portion is located at the lowermost portion of the folded continuous packaging bag 11a whose support by the winding bed 20 is released. The folded continuous wrapping bag 11a can be accommodated in the accommodating portion 33 immediately before the four sachets 10d hang down from the connection with the third sachet 10c.

  In the folding apparatus of the embodiment, since the winding member 31 for winding the packaging bag 11 is configured to be movable by the winding robot 28 with two degrees of freedom, the packaging bag 11 can be folded up with good accuracy. Further, the bag 10 can be easily coped with, for example, change to a product having a different length, and moreover, the continuous packaging bag 11 of each product can be folded accurately and favorably.

  Further, when the folded continuous wrapping bag 11a is pulled out by the pulling-out means 32, the left and right sides of the folded continuous wrapping bag 11a stored in the storage portion 33 are supported and pulled out from the winding member 31. In this case, it is possible to prevent the folding width and the folding state of the folded continuous wrapping bag 11a from being distorted, and the shape of the folded continuous wrapping bag 11a pushed out from each storage section 33 by the pushing means is deformed. Can be stored smoothly in the bucket of the unloading conveyor.

  Furthermore, in the supply conveyor 13, the continuous bags 11 received in a plurality of lines are aligned with the continuous bags 11 in a plurality of lines by controlling the travel of each endless belt 14a according to the timing of reception to the first conveyor 14. Since the plurality of continuous packaging bags 11 are folded at one time, the number of processes per unit time can be significantly increased.

(Modification example)
The present invention is not limited to the configuration of the embodiment, and can be modified as follows, for example. Moreover, various embodiments can be adopted within the scope of the present invention as to the configurations described in the examples, not limited to the following modifications.
(1) Although the winding member 31 is a hollow flat plate having a width shorter than the length of the pouch 10, for example, a pair of winding bars which can be separated by suction in the lengthwise direction of the pouch 10 and hold the pouch 10 by suction It is possible to adopt various types of winding members capable of supporting and adsorbing the pouch 10 with a predetermined width that allows the continuous packaging bag 11 to be bent from the connection portion, such as providing.
(2) The suction means 19 and the winding member 31 are moved by two robots 16 and 28 with freedom in a two-dimensional plane to transfer and wind the continuous packaging bag 11, but the machine It can also be replaced by a transfer means or bag stacking means of the formula.
(3) The number of continuous packaging bags 11 received by the supply conveyor 13 is not limited to four but may be one or two or more, and the suction pad 18, the suction unit 23, the winding according to the number of acceptance The attachment member 31, the housing portion 33, and the like may be provided correspondingly.
(4) The number of pouches 10 connected as the continuous packaging bag 11 is not limited to four but may be two or more bags, and the positions and suction members of the suction pads 18 and suction portions 23 according to the number of connected bags The number of rotations of 31 may be set.
(5) Withdrawal of the folded continuous wrapping bag 11a from the winding member 31 can be performed by moving the winding member 31 in the rotational axis direction with respect to the storage portion 33. That is, the extraction means can adopt various means for moving the folded continuous packet 11a wound around the winding member 31 relatively in the rotational axis direction of the winding member 31 and extracting it.

(6) The winding member 31 is moved to the rear in the moving direction at the time of winding to deliver the folded continuous wrapping bag 11a to the extracting means 32, but the extracting means is provided corresponding to the winding completion position A configuration for withdrawal can be employed.
(7) The winding member 31 is caused to perform rotation, movement in the bag length direction, and lifting and lowering movement, and the pouch 10 is folded while being wound around the continuous packing bag 11 around the winding member 31. Maintaining the height level of the raised position S2 at which the first pouch 10a is lifted, and rotating the winding member 31 while moving the winding member 31 laterally in the continuous direction of the pouch 10, folding the winding member 12 with the perforation 12 as a base point The continuous packaging bag 11 may be wound around the winding member 31 while being regulated.
(8) Although the lower surface of the three pouches 10 of the continuous packet 11 placed on the winding bed 20 is adsorbed by the adsorption unit 23, it is most preferable to adopt a configuration that adsorbs all the pouches 10 In addition, it is sufficient that the suction unit 23 for holding the pouches 10a and 10d of at least both ends of the continuous packaging bag 11 is provided. In addition, suction and holding of the lower surface of the bag can be omitted as needed.
(9) Although the supply conveyor 13 is composed of the first conveyor 14 and the second conveyor 15, it is composed of only the first conveyor 14 and continuous bags of each row are transported to the transport end of the first conveyor 14 When the alignment state 11 is reached, the transfer robot 16 may adopt a configuration in which the continuous packaging bags 11 aligned in a plurality of rows are wound at one time and transferred to the bed 20. Moreover, at the time of winding processing of only one row, it can respond by installing only the 2nd conveyor 15.

10 pouch, 10a first pouch (a pouch at one end), 10d fourth pouch (a pouch at the other end)
DESCRIPTION OF SYMBOLS 11 continuous packaging bag, 12 perforation (connection part), 13 supply conveyor 14a endless conveyor (conveyance part), 20 winding bed, 21 mounting surface, 23 adsorption part 27 bag stacking means, 28 winding robot (robot)
29 winding hand part (hand part), 30 drive motor, 31 winding member 32 extraction means, S1 suction position (lower position), S2 upper position, S3 lower position

Claims (7)

A continuous packing bag (11) in which a plurality of sachets (10) are connected via a connecting part (12), in a lying posture, a winding bed (20),
The winding bed (31) includes a winding member (31) supporting the pouch (10a) with a predetermined width that can suck the pouch (10) and the continuous packet (11) can be bent at the connection portion (12). Move the winding member (31), which adsorbs the pouch (10a) at one end of the continuous packet (11) placed on (20), toward the pouch (10d) at the other end of the continuous packet (11) While rotating in a fixed direction, the winding bag (11) is bent at the connection portion (12) so that the small bag (10) is folded in the thickness direction of the winding member (31). Bag stacking means (27) for winding
The continuous wrapping bag (11) wound around the winding member (31) is moved relative to the winding member (31) in the direction of the rotation axis of the winding member (31) to make the winding member (31) And (d) removing means (32) for removing from the pack.   When winding the continuous packing bag (11) around the winding member (31), the winding member (31) rotates 90 degrees while moving the half of the length of the pouch (10) and the winding bed (20) ) From the lowered position (S1, S3) to the raised position (S2) above the lowered position, and thereafter the winding member (31) is further extended from the raised position (S2) to the length of the pouch (10) As the winding member (31) repeats the operation of rotating 90 degrees in the same direction and lowering to the lowered position (S3) while moving the half of the length, from the winding start to the winding end of the continuous wrapping bag (11) 2. A packaging apparatus according to claim 1, wherein the wrapping member is configured to be operated by the bag stacking means.   The suction unit (23) is provided for suctioning the lower surface of the pouches (10a, 10d) at both ends of the continuous packing bag (11) placed on the winding bed (20), and the suction unit (23) As the winding member (31) sucks the upper surface of the pouch (10a) at one end, the suction of the lower surface of the pouch (10a) is released and the continuous packet (11) by the winding member (31) 3. The folding apparatus according to claim 1, wherein the suction of the lower surface of the other end of the small bag (10d) is released at the end of the winding.   The bag stacking means (27) includes a robot (28) having two degrees of freedom in which the hand portion (29) can move to any coordinate in the vertical plane, and the rotational axis is transverse to the hand portion (29) 4. The folding apparatus according to any one of claims 1 to 3, characterized in that a winding member (31) is provided which is rotated by the drive motor (30).   The extraction means (32) supports the left and right ends of the continuous wrapping bag (11) wound around the winding member (31) to support the continuous wrapping bag (11) on the rotation shaft of the winding member (31) 5. The folding apparatus according to any one of claims 1 to 4, which is configured to move relative to each other in a direction. The extraction means (32) is adjacent to the winding bed (20), and the continuous packing bag (11) wound around the winding member (31) is placed on the mounting surface (21) of the bed (20) Having a receiving portion (33) which can be received further below,
In the bag stacking means (27), the pouch (10d) at the other end of the continuous wrapping bag (11) wound around the winding member (31) is supported by the mounting surface (21) of the winding bed (20) The winding member (31) is moved so as to move the winding member (31) toward the rear in the moving direction at the time of winding, and the continuous wrapping bag (11) is accommodated in the accommodation portion (33). The folding apparatus according to any one of claims 1 to 5, wherein the folding apparatus is configured to descend. It comprises a supply conveyor (13) having a plurality of transport units (14a) for placing and transporting the continuous packaging bags (11) in a laid posture in which the sachet (10) continues in the back and forth in the transport direction.
The feed conveyor (13) controls the traveling of the transport unit (14a) of each row in accordance with the difference in the timing of receiving the continuous packet (11) to the transport unit (14a) of each row, Configured to align the transfer tip position of the continuous packaging bag (11);
The winding member (31) is set to a length capable of winding a plurality of continuous packaging bags (11) aligned at the supply conveyor (13) and transferred to the winding bed (20) at one time The folding apparatus for the continuous wrapping bag according to any one of claims 1 to 6, characterized in that

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