JP6147492B2 - Lap round caser - Google Patents

Description

  In the present invention, a container group that is accumulated in a predetermined number and is supplied by a container supply conveyor is placed on a wrap round sheet, then delivered to a downstream sheet conveyance conveyor, sent to a sealing unit, and each flap is folded. It relates to a wrap round caser to be sealed.

  The wrap round caser is configured to press a container group in which a plurality of containers are collected from a rear side by a container transfer means (flight bar) and transfer the container group on the wrap round sheet supplied from the sheet supply means. And the container group as a unit, the sheet is transferred to a downstream sheet conveying conveyor, sent to a sealing unit, and each flap and the like are sequentially bent and sealed (see, for example, Patent Document 1).

  In the “corrugated cardboard caser” described in Patent Document 1, a product (container group) transferred by a flight bar is placed on a corrugated cardboard sheet supplied to a filling unit by a sheet conveying conveyor, and the corrugated cardboard sheet and the product are placed on the corrugated cardboard sheeter. The sheet is received by a drag plate that can be moved forward and backward toward the downstream side of the filling unit and can be disposed on the lower surface side of the corrugated cardboard sheet, and is delivered to the finishing folding and conveying apparatus.

JP 2001-48123 A

  In the invention described in Patent Document 1, a special mechanism called a drag plate is required in order to stably deliver the cardboard sheet and the product (container group). In addition, since it is once received by the drag plate and then transferred to the downstream finishing folding and conveying apparatus, there is a problem that there is a high risk of trouble such as the product falling.

The present invention has been made in order to solve the above-described problems. A container transfer unit that transfers a predetermined number of containers, and a wrap round sheet is supplied in front of the containers transferred by the container transfer unit. A wrap round caser comprising: a sheet supply unit; and a sheet transport unit disposed downstream of the container transport unit and configured to receive a wrap round sheet on which the container is placed and transport the wrap round sheet to a sealing unit. Are provided in the plurality of rotating bodies, an endless traveling body that circulates around the rotating bodies, a rotating means that rotates the rotating body, and the endless traveling body, and is in contact with the rear end of the container. a pusher for transferring the container, and a swingable arm which is supported on a horizontal support shaft in the direction orthogonal to the transport direction of the container, the wraparound sheet of the rotator Of the rotating body of the container extrusion position while located in the lower part of the arm, to place another rotary member on an upper portion of the arm, and, by providing a drive means for oscillating the arm, of the container pushing position The rotating body is configured to be movable between a retracted position for receiving the wrap round sheet and an advanced position for delivering the container downstream in the container transfer direction, and the rotating body at the container push-out position while running the endless traveling body. The container is moved to the advance position to transfer the container to the wrap round sheet.

Further, according to a second invention, in the first invention, the rotating body at the container push-out position swings the arm so that the advance position and the container retract position are symmetric with respect to a vertical line. It is a feature.

  In the first aspect of the invention, of the plurality of rotating bodies around which the belt to which the pusher of the container transferring means is attached is wound, the rotating body at the container pushing position is set to the retracted position for receiving the wrap round sheet, and the container is delivered. By being configured to be movable between the forward position to be performed, the stroke for pushing out the container group can be lengthened, and the container group and the wrap round sheet can be transferred to the downstream sheet conveying means only by the flight bar. It is not necessary to arrange a special delivery device, and the configuration can be simplified. In the second aspect of the invention, the rotating body at the container pushing position is attached to the lower part of the swing arm, and is moved forward and backward by swinging by the driving means, so that the mechanism is simple and the configuration is simple. Can be Furthermore, in the third invention, since the forward position and the backward position of the rotating body at the container pushing position swing symmetrically on the vertical line, the mechanism is simple and the structure can be simplified. .

FIG. 1 is a plan view of a wrap round caser. (Example 1) FIG. 2 is a side view of the wrap round caser. FIG. 3 is an enlarged view of a main part of FIG. 4 is a view in the direction of arrows IV in FIG. FIG. 5 is a plan view showing driving of the swing arm. 6A is a plan view showing driving of the moving arm, and FIG. 6B is a side view showing driving of the moving arm. FIGS. 7A to 7C are views showing the relationship between the moving arm and the rotating body at the container pushing position. FIG. 8 is an enlarged plan view showing an upstream portion of the sheet conveying conveyor. FIGS. 9A and 9B are side views showing the positional relationship between the wrap round sheet on which the container group is placed and the second side guide and the like. 10A to 10C are side views for sequentially explaining the operation of the wrap round caser. 11A to 11C are side views for sequentially explaining the operation of the wrap round caser.

  A plurality of containers are transported by a container supply conveyor and supplied as a container group in which a predetermined number of glue pins are formed. A sheet conveying conveyor is arranged in series at a certain interval on the downstream side of the container supply conveyor. The space between the container supply conveyor and the sheet conveying conveyor is a filling position where the container group is placed on the supplied wrap round sheet, and the wrap round sheet is supplied from the sheet supply means to the filling position. The From the downstream end of the container supply conveyor to the upper part of the filling position, it engages behind the container group supplied by the container supply conveyor, moves at a speed faster than the conveyance speed of the container supply conveyor, and pushes the container group forward A container transfer means is disposed.

  The container transfer means includes upstream rotating bodies (pulleys) disposed on both sides in the transport direction above the downstream portion of the container supply conveyor, and pulleys at the container extrusion positions disposed on both sides in the transport direction above the filling position. An upper pulley disposed above each pulley, an endless traveling body (belt) wound around four pulleys on both the lower and upper sides, and a pusher (flight bar) attached to the belt And rotating means (belt drive motor) for running the belt. The lower pulley on the downstream side (the pulley at the container push-out position) and the pulley above it are supported at the center by a horizontal rotating shaft arranged in a direction perpendicular to the container transport direction, and face the container transport direction. It is attached to the top and bottom of the swing arm that can swing. By swinging the swing arm by a swing arm driving motor, the pulley at the container push-out position is moved backward to receive the wrap round sheet supplied to the filling position, and the forward position when the container is pushed out and delivered. Can be moved between.

  At a filling position between the downstream end of the container supply conveyor and the upstream end of the sheet conveying conveyor, a moving arm is arranged for receiving a group of containers supplied from the container supply conveyor and moving it above the wrap round sheet. This moving arm is interlocked with a pulley at the lower end of the swing arm (a pulley at the container pushing position), and is integrated with the pulley when the container is pushed out by the container transfer means and placed on the wrap round sheet. Go forward. In addition, a first side guide is provided which guides both side portions of the container group which is placed on the swing arm and pushed forward by the flight bar of the container transfer means. In addition, a sealing portion is provided on the sheet conveying conveyor, and a second side guide that folds the front side flap at a position retracted to the most upstream side and moves following the wrap round sheet, from the rear to the front In addition, there are provided tuckers or the like on both sides that turn from the outside to the inside and fold the rear side flaps. By extending the stroke for pushing out the containers by the flight bar as described above, the object of enabling the container group supplied by the container supply conveyor to be transferred to the sheet conveying conveyor only by the flight bar is achieved. To do.

  Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. A plurality of containers 4 conveyed by the container supply conveyor 2 are grouped and transferred by a container transfer means 6 provided above the downstream portion of the container supply conveyor 2. The wrap round sheet 10 is supplied to a filling position F at the downstream end of the container supply conveyor 2 by a sheet supply means (indicated by reference numeral 8 as a whole). The container group 4A in which a plurality of containers 4 are grouped is pushed from behind by the container transfer means 6 and placed on the bottom 10a of the wrap round sheet 10, and together with the wrap round sheet 10, downstream of the container supply conveyor 2 Then, the sheet is transferred onto a conveying means (sheet conveying conveyor 12) arranged in series with a space therebetween. The sealing part 13 is provided on the sheet conveying conveyor 12, and the front and rear flaps (front flap 10b, rear flap 10c), top surface 10d, and front and rear of the wrap round sheet 10 on which the container group 4A is placed on the bottom surface 10a The side flaps 10e, 10f, etc. are sequentially folded and sealed to form a case containing the container 4 therein.

  The container supply conveyor 2 includes an endless belt 16 wound around a plurality of pulleys 14 and the like, and a plurality of containers 4 grouped on the endless belt 16 are placed and conveyed. In this embodiment, three containers 4 each in four rows are conveyed in two rows (see the container 4 on the left side of FIG. 1). Guides 18 for guiding the containers 4 are arranged on both sides of the downstream end of the container supply conveyor 2. The guides 18 on both sides approach each other toward the downstream side, and the two rows of containers 4 are gradually approached and integrated to form three container groups 4A each in four rows. Needless to say, the number of containers 4 grouped in the container group 4A is not limited to twelve.

  A sheet conveying conveyor 12 that receives and conveys the wrap round sheet 10 and the container group 4 </ b> A placed on the wrap round sheet 10 is arranged in series on the downstream side of the container supply conveyor 2. A space is formed between the upstream end of the sheet conveying conveyor 12 and the downstream end of the container supply conveyor 2, and a filling position F for placing the container group 4A on the wrap round sheet 10 is provided in this space portion. Yes.

  At the filling position F, the wrap round sheets 10 developed into a single plate by the sheet supply means 8 are supplied one by one. A sheet magazine 20 in which a large number of wrap round sheets 10 are stacked and accommodated is disposed on the side of the downstream end of the container supply conveyor 2. The lowermost wrap round sheet 10 of the sheet magazine 20 is taken out by a sheet take-out means (not shown) provided with suction means such as a suction cup, and a sheet supply conveyor (not shown) provided with gripping means such as a gripper. ) To the filling position F to be supplied. As shown in FIG. 2, the supplied wrap round sheet 10 is in a state where the upper end portion is slightly inclined toward the downstream side. A portion of the wrap round sheet 10 located below the transport surface 2a of the container supply conveyor 2 is a bottom surface 10a on which the container 4 is placed, and a rear flap 10c is continuously provided below the bottom surface 10a. . Moreover, the front flap 10b and the top | upper surface 10d are provided in the upper side rather than the said bottom face 10a of the wrap round sheet | seat 10 continuously. Side flaps 10g, 10e, 10f, and 10h are provided on both sides of the bottom surface 10a, the front and rear flaps 10b and 10c, and the top surface 10d, respectively (see FIG. 1). In addition, since the wrap round sheet | seat shown in FIG. 1 is in the state which inclined 10, the width | variety of each flap is displayed shorter than the actual shape.

  The container transfer means 6 is arrange | positioned over the downstream part of the container supply conveyor 2, and the filling position F ahead (refer FIG. 3 which expands and shows the principal part of FIG. 2 and FIG. 2). Rotating bodies (pulleys 22, 24) are arranged on the upstream side and the downstream side slightly above the conveying surface 2 a on both sides in the conveying direction of the container supply conveyor 2, respectively. Pulleys 26 and 28) are arranged (see FIGS. 2 to 4). An endless traveling body (belt 30) is wound around these four pulleys 22, 24, 26, and 28. Pushers (flight bars 32) are attached between the belts 30 on both sides at a predetermined interval. A pulley 26 arranged on the upstream side is a drive pulley, and a drive belt 38 is wound around the drive pulley 26 and a pulley 36 attached to a drive shaft of a belt drive motor 34 as a rotating means. Yes. The drive of the belt drive motor 34 is transmitted through the drive belt 38, the drive pulley 26 is rotated, and the belt 30 to which the flight bar 32 is attached travels in the direction of the arrow in FIG.

  The flight bar 32 of the container transfer means 6 moves at a speed faster than the conveying speed of the container supply conveyor 2, and descends from the upper drive pulley 26 to the lower pulley 22, and is moved by the container supply conveyor 2. It enters the rear of the container group 4A being conveyed, moves at a faster speed than the container group 4A, catches up with the rear of the container group 4A, and then presses and advances the container group 4A. Further, the flight bar 32 is finally advanced to the position of the pulley 24 disposed below the downstream side to push out the container group 4A. The pulley 24 disposed below the downstream side will be referred to as a pulley at the container pushing position.

  The upper and lower pulleys 28, 24 arranged on the downstream side of the container transfer means 6 are swingable with a central portion supported by a horizontal rotating shaft 40 arranged in a direction orthogonal to the conveying direction of the container supply conveyor 2. The swing arm 42 is attached to the upper end and the lower end. One end of a connecting rod 44 is connected to the upper portion of the swing arm 42. The other end of the connecting rod 44 is connected to the rotating end of a short lever 48 fixed to the drive shaft 46a of the swing arm drive motor 46 (see FIG. 5). The swing arm 42 is swung by driving the swing arm driving motor 46, and the pulley 24 at the container pushing position attached to the lower end of the swing arm 42 is the most retracted position (sheet receiving position) shown in FIG. It is possible to move between the most advanced position (container delivery position) shown in FIG.

  A moving plate 50 (FIGS. 4 and 6) that horizontally moves at a filling position F between the downstream end of the container supply conveyor 2 and the upstream end of the sheet transfer conveyor 12 at substantially the same height as the transfer surface 2a of the container supply conveyor 2. a) and (b)) are provided. The moving plate 50 is disposed on the transport path of the container group 4A, receives the containers 4 transported by the container supply conveyor 2, moves them to the sheet transport conveyor 12, and supplies them to the filling position F. The wrap round sheet 10 is bent and bent (see FIGS. 10B and 10C described later). The moving plate 50 is connected to the other end of a connecting rod 54 that is eccentrically connected to the moving plate drive motor 52 via an L-shaped bracket 55 (see FIGS. 3 and 6). By driving the drive motor 52, the filling section F between the container supply conveyor 2 and the sheet conveying conveyor 12 is moved forward and backward. A slider 56 is fixed on the lower surface side of the moving plate 50, and the slider 56 is fitted to a rail 62 fixed in a conveying direction on brackets 60 (see FIG. 4) fixed to a machine frame 58 on both sides. The moving plate 50 is guided by the rail 62 and the slider 56, and moves forward and backward at the same height while maintaining the level.

  A pair of horizontal plate-like side guides (hereinafter referred to as first side guides 64) can be moved forward and backward in the conveying direction of the container 4 below the pulley 24 arranged at the container pushing position of the container transfer means 6. Is arranged. The first side guides 64 on both sides are arranged on both sides of the transport path of the container group 4A, and support positions near the bottom of the side surface of the container group 4A (see FIG. 4). Sliders 66 are fixed to the lower surfaces of the first side guides 64, and these sliders 66 are fitted to rails 68 attached to the brackets 60 fixed to the machine frames 58 on both sides. It is guided by 66 and moves forward and backward. An L-shaped link 70 (see FIGS. 7A to 7C) is connected to the outer ends of the first side guides 64. A bent portion 70a at the center of the L-shaped link 70 is connected to the shaft center of the pulley 24 disposed at the container pushing position. One end of the link 72 is rotatably supported on the one machine frame side wall (right side wall in FIG. 4) 58 at substantially the same height as the rotary shaft 40 of the swing arm 42, and the other end of the link 72 is supported. Is connected to the other end of the L-shaped link 70. Accordingly, when the swing arm 42 is swung, the L-shaped link 70 is moved and the link 72 is rotated as the pulley 24 at the container pushing position is moved, and the first side guide 64 is moved to the slider 66. And it is guided by the rail 68 and moves in the conveying direction of the container 4.

  When the container group 4A conveyed by the container supply conveyor 2 is transported to the filling position F on the wrap round sheet 10, the front surface of the container 4 is moved in order to stably move the container group 4A so as not to fall over. A front guide 74 is provided to support the side (see FIG. 2 and FIG. 3 shown enlarged). The front guide 74 is arranged above the downstream end of the container supply conveyor 2 and is rotated by a front guide drive motor 76 and slightly downstream (filling position F) from the downstream end of the container supply conveyor 2. A belt 82 is wound around a driven pulley 80 disposed at the same height as the drive pulley 78, and an engaging member 84 is attached to the belt 82. The engaging member 84 is brought into contact with the front surface of the head (cap) of the top container 4 of the container group 4A and moved at the same speed as the container group 4A moved by being pushed by the flight bar 32 of the container transfer means 6. It is supposed to let you.

  The sheet conveying conveyor 12 includes a front finger 88 and a rear finger 90 that are attached to an endless conveying chain 86 that is wound around upstream and downstream sprockets 92 (downstream sprockets are not shown). The wrap round sheet 10 containing the container 4 is conveyed from the front and back (see FIG. 8 and FIG. 10 described later). In this embodiment, as shown in FIG. 8, three rows of conveying chains 86A, 86B, 86C are arranged in parallel and are wound around a central upstream sprocket 92A and a downstream sprocket (not shown). The front finger 88 is attached to the transport chain 86A, and the rear finger 90 is mounted on the two rows of transport chains 86B and 86C that are wound around the two upstream sprockets 92B and 92C and the downstream sprocket (not shown) on both sides. It is attached. The upstream sprocket 92A around which the central transport chain 86A is hung is located approximately one sprocket upstream of the upstream sprockets 92B and 92C on both sides.

  The front finger 88 rises to the front side of the wrap round sheet 10 supplied to the filling position F, and when the folding plate folds the fold line between the bottom surface 10a of the wrap round sheet 10 and the front flap 10b by the moving plate 50, (See FIGS. 10B and 10C). Further, the rear finger 90 rises from the rear side of the wrap round sheet 10 on which the container group 4A is placed, and supports the rear side in a state where the rear flap 10c is bent upright along a fold line between the bottom face 10a ( FIG. 8, FIG. 10 and FIG. 11).

  A pair of second side guides 94 that move forward and backward along the conveying direction of the sheet conveying conveyor 12 are provided on both upper sides of the upstream end of the sheet conveying conveyor 12 (see FIGS. 1, 2, and 8). The second side guide 94 moves forward and backward between a position (indicated by reference numeral 94A) described on the left side of each of the drawings and a position described by right side (indicated by reference numeral 94B). Rails 96 are installed on both sides of the sheet conveying conveyor 12 in parallel with the conveyor 12, and sliders 100 attached to the second side guides 94 on both sides via attachment members 98 are fitted to the rails 96. Yes. On the lower side of the frame 102 (see FIG. 2) on which the sheet conveying conveyor 12 is installed, there is provided a swing lever 104 that reciprocally swings the upper end portion in the conveying direction of the sheet conveying conveyor 12 with the lower end portion as a fulcrum. The slider 100 of the second side guide 94 is connected to the upper end of the swing lever 104 via a connecting rod 106. One end of the drive connecting rod 108 is connected to the upper and lower intermediate portions of the swing lever 104. The other end of the drive connecting rod 108 is eccentrically connected to the rotor 112 rotated by the second side guide drive motor 110. When the rotor 112 is rotated by the second side guide drive motor 110, the drive connecting rod 108 moves forward and backward while rotating one end on the rotor 112 side, and swings the swing lever 104. As the swing lever 104 swings, the slider 100 moves forward and backward along the rail 96 via the connecting rod 106, and the second side guide 94 moves forward and backward in the transport direction of the sheet transport conveyor 12.

  The second side guides 94 are arranged at approximately the same width as or slightly wider than the width of the front flap 10b of the wrap round seat 10 in order to fold the front side flap 10e of the wrap round seat 10, and have an upstream end. 94a (the left end in FIGS. 1 and 8) is curved outward. The second side guides 94 arranged on both sides of the conveying path of the sheet conveying conveyor 12 are arranged at a substantially middle position in the vertical height of the container 4 to be conveyed (see FIGS. 9A and 9B). ), And a fixed guide 114 for holding and guiding the folded front side flap 10e and rear side flap 10f at substantially the same interval as the second side guide 94 (see FIG. 5). 2, see FIG. 8 and FIG. 9 (b)).

  A tucker 116 that bends the rear side flap 10f of the wrap round sheet 10 forward is provided on both sides of the sheet conveying conveyor 12 (see FIGS. 1, 2 and 8). Each tucker 116 has a curved ball shape, and the rear side flap 10f is moved forward by rotating the rotation end inward from the rear to the front around the fulcrum shaft 118 that is backed on the outside of the conveyance path. Bend to the side. The fixed guide 114 is disposed slightly downstream of the position where the rear side flap 10f is bent by the tucker 116, and the second side guide 94 is also moved to substantially the same position as the fixed guide 114. (Position indicated by reference numeral 94B). Accordingly, the rear side flap 10f bent forward (upstream) by the operation of the tucker 116 is sandwiched between the fixed guide 114 and the second side guide 94 as it is.

  The operation of the lap round caser according to the above configuration will be described. The containers 4 packed in the wrap round sheet 10 by this wrap round caser are conveyed by the container supply conveyor 2 in two rows of 3 each side by side with a slight gap (shown at the left end of FIG. 1). Container 4). When the plurality of containers 4 that have been conveyed reach the downstream end of the container supply conveyor 2, they enter between the side guides 18 that are arranged so that the downstream side gradually approaches this point, and each of the three containers in four rows Grouped into group 4A.

  When the containers 2 conveyed by the container supply conveyor 2 enter between the both side guides 18, the flight bar 32 of the container transfer means 6 installed at the upper side descends from the upper side by the traveling of the belt 30, and these container groups 4A. The container group 4A is moved forward at a speed faster than the conveying speed of the container supply conveyor 2 to catch up with the container group 4A, and is pressed from behind to advance the container group 4A. On the other hand, a front guide 74 is provided above, and an engaging member 84 of the front guide 74 is engaged with the upper end portion (cap portion) of the top container 4 of the container group 4A from the front side, and the container group Move forward at the same speed as 4A. The front guide 74 stably conveys the container group 4A without falling down.

  The space between the downstream end of the container supply conveyor 2 and the upstream end of the sheet conveying conveyor 12 is a filling position F where the container group 4A is placed on the supplied wrap round sheet 10, and is close to the sheet conveying conveyor 12 at the filling position F. The wrap round sheet 10 is supplied from the side by the sheet supply means 8. The wrap round sheet 10 is stacked and accommodated in the sheet magazine 20 of the sheet supply means 8, and the lowermost sheet is adsorbed and taken out by an adsorption means (not shown), and a sheet supply conveyor (not shown). ) And conveyed to the filling position F.

  When the wrap round sheet 10 is supplied, the upper and lower pulleys 28 and 24 on the downstream side of the container transfer means 6 are swung by a swing arm driving motor 46 as shown in FIG. The pulley 24 at the lower container pushing position is moved to the receiving position (retracted position) of the upstream wrap round sheet 10, and the upper pulley 28 is moved to the downstream side in the reverse direction by the same distance as the pulley 24. (See FIG. 3). By swinging the swing arm 42 in this way, the wrap round sheet 10 is supplied to the filling position F without interfering with the container transfer means 6.

  A moving plate 50 is disposed in front of the downstream end of the container supply conveyor 2 so as to be able to move forward and backward. When the moving plate 50 is retracted to the most upstream side, the container pushed by the flight bar 32. 4 is transferred from the container supply conveyor 2 onto the moving plate 50. At the position where the moving plate 50 is most retracted, there is almost no gap between the container supply conveyor 2 and the moving plate 50, and the container group 4A can smoothly transfer onto the moving plate 50 (see FIG. 10A). .

  The container group 4A that has been transferred onto the moving plate 50 is further pushed by the flight bar 32 and moved to the tip end side of the moving plate 50, and the moving plate drive motor 52 drives the moving plate 50 to the downstream side (sheet conveying conveyor). 12 side). As the moving plate 50 moves forward, the swinging plate drive motor 46 operates to move the swinging arm 42 so that the pulley 28 at the upper end retreats to the upstream side and the pulley 24 at the container pushing position at the lower end is the downstream container. Oscillation is started so as to move to the delivery position (forward position) (see FIG. 10B). Below the pulley 24 at the container push-out position, a first side guide 64 that moves to the downstream side in conjunction with the swinging motion of the swinging arm 42 is provided (see FIG. 4), and is placed on the moving plate 50. The first side guide 64 moves together with the pulley 24 at the container pushing position as shown in FIGS. 7A to 7C. .

  When the moving plate 50 is advanced at the same speed as the container group 4A advanced by the flight bar 32, the tip of the moving plate 50 hits the fold line between the front flap 10b and the bottom surface 10a of the wrap round sheet 10, and this Bending the wrap round sheet 10 is started (see FIG. 10B). At this time, the front finger 88 of the downstream sheet conveying conveyor 12 is supported in a state of being in contact with the front side of the front flap 10b of the wrap round sheet 10 that is bent and is standing upright. In this way, the movable plate 50 hits the folding line and is sandwiched between the front fingers 88, so that the wrap round sheet 10 can be reliably folded at the folding line.

  Further, the flight bar 32 moves forward, presses the container group 4A, pushes out from the moving plate 50 stopped at the forward end, and transfers onto the bottom surface 10a of the wrap round sheet 10 (see FIGS. 11A to 11C). ). The front finger 88 of the sheet conveying conveyor 2 advances together with the wrap round sheet 10 and the container group 4A while supporting the front surface of the wrap round sheet 10. Further, the swing arm 42 swings the most, and the pulley 24 at the container pushing position stops at the container delivery position (advance position).

  Since the pulley 24 at the container push-out position is greatly advanced above the sheet conveying conveyor 12, the flight bar 32 can be further advanced, and the container group 4A placed on the wrap round sheet 10 is integrated with the sheet conveying conveyor 12. Transfer to the top. After the container group 4A is transferred from the moving plate 50 onto the wrap round sheet 10, the moving plate 50 starts to move backward (to the container supply conveyor 2 side) (see FIG. 11B).

  Further, the flight bar 32 moves forward, pushes out the wrap round sheet 10 and the container group 4A and delivers them to the sheet conveying conveyor 12, and then the rear fingers 90 rotate around the sprockets 92B and 92C to move upward and stand upright. The wrap round sheet 10 is in contact with and supported by the rear flap 10c. FIG. 11 (c) shows a state in which the rear finger 90 starts to rotate by rotating around the sprockets 92B and 92C.

  When the wrap round sheet 10 on which the container group 4A is placed is delivered to the sheet conveying conveyor 12, the second side guide 94 has moved to the upstream end of the sheet conveying conveyor 12 (reference numeral 94A in FIG. 8). The wrap round sheet 10 is pushed between the second side guides 94 (94A) on both sides. Front side flaps 10e are provided on both sides of the front flap 10b whose front surface is supported by the front fingers 88. Both front side flaps 10e hit the curved portion 94a at the tip of the second side guide 94, and the container group 4A It is bent back toward the side. Further, when the wrap round seat 10 and the container group 4A move forward, the second side guides 94 on both sides press both the front side flaps 10e against the side surface of the container group 4A, and the side flaps 10e behind the front side flaps 10e. The side surface of the uncovered container 4 is supported. Before the rear end of the container group 4A reaches the positions of the second side guides 94 (94A) on both sides, the second side guide 94 also moves following the movement of the wrap round sheet 10 on which the container group 4A is placed. Start. As shown in FIG. 9A, after the second side guides 94 have folded the front side flaps 10e on both sides, the second side guides 94 are connected to the wrap round seat 10 when the rear side flaps 10f approach each other. And the advancement is started following the movement of the container group 4A.

  When the bottom surface 10a on which the container group 4A of the wrap round sheet 10 is placed approaches the positions of the sprockets 92B and 92C on both sides of the sheet conveying conveyor 12, the two rear fingers 90 rotate around the sprockets 92B and 92C. Standing up, the rear flap 10c is bent at a folding line between the rear flap 10c and the bottom surface 10a to bring it upright. At this point, the front flap 10b on the front side of the wrap round seat 10 is supported by the front fingers 88, and the rear flap 10c on the rear side is supported by the two rear fingers 90 (see FIG. 8). Further, the front side flaps 10e on both sides of the front flap 10b are folded by the second side guides 94 and supported by the second side guides 94 that follow and move as they are. On the other hand, the rear side flaps 10f on both sides of the rear flap 10c are open to the left and right on the same surface as the rear flap 10c.

  When the wrap round sheet 10 in the above state approaches the position of the tucker 116, the tuckers 116 on both sides are opened to the outside so that they do not interfere with the rear side flap 10f passing therethrough. In addition, immediately before the rear side flap 10f is folded by the tucker 116, the second side guides 94 on both sides are moved at a speed faster than the conveying speed of the wrap round sea 10 until the position where only the front side flap 10e is supported. It moves forward (moves to a position shown by reference numeral 94B in FIG. 8). In this state, both tuckers 116 are rotated. The rear side flaps 10f that are open on both sides of the rear flap 10c are bent toward the front side by a tucker 116 that rotates with its tip directed inward, and pressed against the side surfaces of the container group 4A. As shown in FIG. 9B, when the rear side flap 10f is folded by the tucker 116, the second side guide 94 has advanced to a position where only the front side guide 10e is pressed, and the rear side bent by the tucker 116 It does not interfere with the flap 10f.

  When the lap round seat 10 advances while the rear side flaps 10f are bent by the two tuckers 116, the front side flap 10e sandwiched between the fixed guide 114 and the second side guide 94 (94B) at the most advanced position. Subsequently, the rear side flap 10 f is sandwiched between the fixed guide 114 and the second side guide 94.

4 Containers 4A Accumulated containers (containers)
6 container transfer means 8 sheet supply means 10 wrap round sheet 12 transport means (sheet transport conveyor)
13 Sealing part 22 Rotating body (pulley)
24 Rotating body (Pulley at the container extrusion position)
26 Rotating body (pulley)
28 Rotating body (pulley)
30 Endless traveling body (belt)
32 pusher (flight bar)
34 Rotating means (belt drive motor)

Claims (2)

A container transfer means for transferring containers accumulated in a predetermined number, a sheet supply means for supplying a wrap round sheet to the front of the container transferred by the container transfer means, and disposed downstream of the container transfer means, In a wrap round caser provided with sheet transport means for receiving a wrap round sheet on which a container is placed and transporting it to a sealing part,
The container transfer means is provided in a plurality of rotating bodies, an endless traveling body that circulates around the rotating bodies, a rotating means that rotates the rotating body, and an endless traveling body that is provided at the rear end of the container. A pusher that contacts the container and moves the container, and a swingable arm supported by a horizontal support shaft in a direction orthogonal to the container transfer direction ,
A driving means for disposing the rotating body at the container pushing position onto the wrap round sheet among the rotating bodies at the lower part of the arm, and disposing another rotating body at the upper part of the arm and swinging the arm. By providing the rotating body at the container extruding position so as to be movable between a retracted position for receiving the wrap round sheet and an advanced position for delivering the container on the downstream side in the container transfer direction,
A lap round caser characterized in that the container is transferred to a wrap round sheet by moving the rotating body at the container pushing position to a forward position while running the endless traveling body. The rotating body of the container extrusion position, the so that the advanced position and the container retracted position is symmetrical with a vertical line, wrap around cable support according to claim 1, characterized in that oscillating the arm.

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