JP5795230B2 - Stacker device - Google Patents

Description

  The present invention relates to a stacker device used in a box making machine or a printing machine for corrugated cardboard sheets.

  In general, a box making machine for corrugated cardboard sheets includes a printing unit that prints corrugated cardboard sheets, a slotter unit that performs ruled line processing on the corrugated cardboard sheets, a die cutter unit that performs grooving processing on the corrugated cardboard sheets, and a cardboard sheet folding machine. And a folder gluer that bonds the cardboard sheets into a box shape.

  2. Description of the Related Art Conventionally, a box making machine having a configuration that can cope with a case that does not require box making of cardboard sheets has been proposed. In such a box making machine, a stacker is disposed on the downstream side of the die cutter unit, an operation mode in which corrugated sheets processed by the die cutter unit are stacked on the stacker, and a folder gluer through the stacker from the die cutter unit. The operation mode for conveying the corrugated cardboard sheet is selectable. Japanese Patent Laid-Open No. 11-193168 discloses an example of such a box making machine (Patent Document 1).

  A box making machine disclosed in JP-A-11-193168 includes a sheet stacker 6 provided between a processing unit 5 having a die cutter or the like and a folder gluer 13, and the sheet stacker 6 includes the processing unit 5. The sheet receiving conveyor 7 and the sheet conveying conveyor 8 that convey the cardboard sheet sent from the sheet conveying device, and the sheet regulating member 10 that restricts the downstream movement of the cardboard sheet discharged from the sheet conveying conveyor 8 are provided.

  When the box making process is not performed in the folder gluer 13, the corrugated cardboard sheet sent to the sheet stacker 6 hits the sheet regulating member 10, is stacked on the pallet 11, and is appropriately collected. The upstream end portion of the sheet conveying conveyor 8 is rotatably supported by the support portion 8c, and the downstream end portion (corrugated cardboard sheet discharging portion) of the sheet conveying conveyor 8 is movable up and down. The sheet regulating member 10 is configured to move up and down in conjunction with the downstream end portion of the sheet conveying conveyor 8 and to be movable up and down with respect to the downstream end portion of the sheet conveying conveyor 8 (see Patent Document 1). 2 and FIG. 16 etc.).

  The box making machine disclosed in Japanese Patent Application Laid-Open No. 11-193168 is further provided with sheet transporting means 12 for transporting the corrugated cardboard sheet toward the folder gluer 13 through the sheet stacker 6. The sheet transfer means 12 includes a movable upstream conveyor 12a and a fixed downstream conveyor 12b. When the box making process is performed by the folder gluer 13, the upstream conveyor 12a is a sheet stacker. 6 and is continuously provided on the sheet conveying conveyor 8. When the box making process is not performed, the upstream conveyor 12a is disposed outside the sheet stacker 6 so that a space for stacking cardboard sheets on the pallet 11 is formed.

  In the box making machine disclosed in Japanese Patent Laid-Open No. 11-193168, when the upstream conveyor 12a is connected to the sheet conveying conveyor 8 by raising the sheet regulating member 10 with respect to the downstream end of the sheet conveying conveyor 8. Furthermore, the drop between the downstream end of the sheet conveying conveyor 8 and the upstream conveyor 12a is reduced. Japanese Patent Application Laid-Open No. 11-193168 also discloses an embodiment in which a drop between the downstream end of the sheet conveying conveyor 8 and the upstream conveyor 12a is reduced by bending the sheet regulating member 10 (patent) (See FIG. 6 of Document 1).

  A general box making machine for corrugated cardboard sheets is provided with a paper feeding unit that supplies the corrugated cardboard sheets to the folder gluer. In the paper feeding unit, the cardboard sheets supplied to the folder gluer are held in a stacked state. In order to smoothly deposit the corrugated cardboard sheets in the paper feeding unit, the series of corrugated cardboard sheets are conveyed to the paper feeding unit in a state of being overlapped in a roof tile shape, so-called wrapping state.

  In the box making machine disclosed in Japanese Patent Application Laid-Open No. 11-193168, a series of corrugated cardboard sheets are conveyed in a state of being separated from each other on the sheet conveying conveyor 8, that is, a so-called separate state. The sheet turbulence prevention member 18 provided at the lower end portion of the sheet regulating member 10 acts as a resistance on the corrugated cardboard sheet by making the conveyance speed of the sheet transfer means 12 slower than the conveyance speed of the sheet conveyance conveyor 8, A wrap state is realized by the transfer means 12.

JP-A-11-193168

  In the box making machine disclosed in Japanese Patent Application Laid-Open No. 11-193168, a step or a drop is formed between the downstream end of the sheet conveyor 8 and the upstream conveyor 12a in a state where the upstream conveyor 12a is connected to the sheet conveyor 8. (Although it has been devised to make it smaller). When the corrugated cardboard sheet discharged from the die cutter unit is wrapped and transported to the stacker, such a step or drop is not preferable for smoothly transporting the corrugated cardboard sheet. It becomes an obstacle.

  However, in the box making machine or the sheet stacker 6 disclosed in Japanese Patent Application Laid-Open No. 11-193168, inconvenience occurs when the sheet conveying conveyor 8 and the upstream conveyor 12a are arranged so as not to cause such a step or a drop. Specifically, as shown in FIG. 2A of Japanese Patent Application Laid-Open No. 11-193168, in the state where the sheet stacker 6 is connected to the folder gluer 13, the end portion of the sheet conveying conveyor 8 is eliminated so that there is no step or drop. When 8a is lowered, the number (height) of corrugated cardboard sheets to be stacked is reduced in the non-connected state shown in FIG. On the other hand, if the sheet conveying means 12 or the upstream conveyor 12a is arranged higher to eliminate a step or a drop, it is necessary to raise the sheet regulating member 10 higher than the end portion 8a of the sheet conveying conveyor 8. . Such a configuration is not preferable in that the stroke of the elevating mechanism (cylinder) 16 is remarkably increased.

  The present invention solves the above-mentioned problem, without reducing the number of corrugated cardboard sheets that are not connected to the folder gluer, that is, without being connected, and without imposing a burden on the movable mechanism of the sheet regulating member. A stacker device that does not cause a step or a drop between the conveyors in a connected state connected to the folder gluer is realized.

The stacker device according to the present invention is provided with a first conveyor mechanism for conveying cardboard sheets, a stacking mechanism for stacking the cardboard sheets discharged from the downstream end of the first conveyor mechanism, and the first conveyor. A stacker device configured to be movable up and down along a vertical direction, wherein the downstream end of the first conveyor mechanism includes the stacking mechanism. The stacking mechanism is supported by the stacking mechanism so that the first conveyor mechanism tilts as the elevator moves up and down, and the stacking mechanism is discharged from the downstream end of the first conveyor mechanism and stacked upstream and downstream of the cardboard sheets An upstream side regulation part and a downstream side regulation part that regulate movement to the side respectively, The downstream end portion of the first conveyor mechanism and the upstream side regulation portion are arranged to be separated from the downstream side, and the downstream side regulation portion of the stacking mechanism is arranged to face the upstream side regulation portion. It is configured to be rotatable around a horizontal axis provided in the stacking mechanism between one posture and a second posture rotated approximately 90 ° from the first posture toward the downstream side, The first conveyor mechanism is provided perpendicular to the conveying direction of the first conveyor mechanism and along the width direction of the first conveyor mechanism, and is disposed at a position higher than the downstream end of the first conveyor mechanism by the stacking mechanism. The second conveyor mechanism is disposed below the downstream regulating portion and connected to the first conveyor mechanism in a state where the downstream regulating portion of the stacking mechanism is in the second posture. Stacking mechanism The height of the stacking mechanism is such that the upstream end of the second conveyor mechanism disposed below the downstream regulating portion and the downstream end of the first conveyor mechanism have substantially the same height. Adjusted.

  Furthermore, in the stacker device of the present invention, the stacking mechanism is configured such that the second conveyor mechanism is connected to the first conveyor mechanism when a series of cardboard sheets are separated from each other and conveyed on the first conveyor mechanism. There is provided means for stacking the corrugated cardboard sheets in a roof tile shape above.

  In the stacker device of the present invention, the stacking mechanism includes a driving unit that rotates the downstream side regulating unit, and the downstream side regulating unit is moved to the first posture or the second posture even when the driving unit is operated. Locking means for holding.

  In the stacker device of the present invention, the downstream side regulation portion of the stacking mechanism rotates approximately 90 degrees toward the downstream side around the horizontal axis that is higher than the downstream end portion of the first conveyor mechanism. As a result, when the second conveyor mechanism is connected to the first conveyor mechanism, the downstream end of the first conveyor is lowered lower than in the prior art, so that no step or drop occurs. The first conveyor mechanism and the second conveyor mechanism can be connected. Since it has such characteristics, in the present invention, the first conveyor mechanism and the second conveyor mechanism are connected so as not to cause a step or a drop without reducing the number of cardboard sheets stacked in the stacker device. It is done. Further, in the stacker device of the present invention, the downstream side restricting portion is configured to be rotatable about the horizontal axis, so that when the cylinder is used as the driving means of the downstream side restricting portion, the cylinder having a large stroke There is no need to use.

  In addition, since the stacker device of the present invention has means for stacking the corrugated sheets in a roof tile shape on the second conveyor mechanism, even when the corrugated sheets are conveyed in a separate state by the first conveyor mechanism, Cardboard sheets can be wrapped and sent to folder gluer.

  Furthermore, in the stacker device according to the present invention, when the stacking mechanism is provided with a lock unit that holds the downstream side regulating portion in the first posture or the second posture, the driving unit that rotates the downstream side regulating portion malfunctions. This prevents a situation where the stacker device is damaged due to the movement of the downstream regulating portion.

It is a side view of the stacker device which is an example of the present invention. It is a top view which shows the part of the downstream of the stacker apparatus which is an Example of this invention. It is a side view which shows a part of stacking mechanism of the stacker apparatus which is an Example of this invention. It is a perspective view which shows a part of stacking mechanism of the stacker apparatus which is an Example of this invention. It is a side view which shows a part of stacking mechanism of the stacker apparatus which is an Example of this invention. It is a side view which shows a part of box making machine provided with the stacker apparatus which is an Example of this invention. It is a side view which shows a part of box making machine provided with the stacker apparatus which is an Example of this invention. It is a side view which shows a part of box making machine provided with the stacker apparatus which is an Example of this invention. It is a side view which shows a part of box making machine provided with the stacker apparatus which is an Example of this invention. It is explanatory drawing which shows the pattern in which a corrugated board sheet is conveyed in the lapping state with the box making machine provided with the stacker apparatus which is an Example of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a stacker device (10) according to an embodiment of the present invention, and FIG. 2 is a top view showing a downstream portion of the stacker device (10) (cart 16 or cardboard). S is omitted). The stacker device (10) constitutes a part of a box making machine having a printing function (or a printing machine having a box making function), and the box making machine includes a printing unit for printing a cardboard sheet, and a cardboard sheet. A slotter unit that performs crease processing, a die cutter unit that performs grooving processing on a corrugated cardboard sheet, and a folder gluer that folds and bonds the corrugated cardboard sheet to form a corrugated cardboard sheet in a box shape (all (Not shown). The stacker device (10) is disposed between the die cutter unit of the box making machine and the folder gluer (the paper feeding unit (90) thereof).

  The overall configuration of the box making machine in which the stacker device (10) of this embodiment is used is substantially the same as the box making machine disclosed in, for example, Japanese Patent Laid-Open No. 11-193168, and is therefore related to the present invention. Except for matters and features, explanations about the box making machine are omitted. In the present specification, the terms “upstream” and “downstream” are based on the flow direction of the corrugated board sheet conveyance line in the box making machine, Used when referring to orientation.

  The stacker device (10) includes an auxiliary conveyor mechanism (11) that receives the cardboard sheet sent from the die cutter unit, and an extendable conveyor mechanism (12) that receives the cardboard sheet from the auxiliary conveyor mechanism (11) and conveys it downstream. It has. The downstream end of the auxiliary conveyor mechanism (11) is supported by the pedestal (13). The upstream end of the telescopic conveyor mechanism (12) is rotatably supported by the pedestal (13).

  The stacker device (10) includes a pair of column members (vertical members) vertically spaced apart in the width direction (hereinafter referred to as `` machine width direction '') of the stacker device (10) (or the telescopic conveyor mechanism (12)). 14a) (14b) and a stacking mechanism (30) provided so as to be movable up and down along these column members (14a) (14b). The stacking mechanism (30) includes a pair of elevating plates (31a) and (31b) .Each of the elevating plates (31a) and (31b) is disposed inside the corresponding column member (14a) and (14b). The column members (14a) and (14b) are attached so as to be movable.

  A first motor (32) used for the vertical movement of the elevating plates (31a) and (31b) is arranged on the upper portion of one column member (14a). The first motor (32) is a reduction gear. (33), and further, connected to a lifting plate (31a) attached to the column member (14a) via a drive mechanism (not shown) such as a sprocket or chain attached to the column member (14a). . The column member (14b) is also equipped with a drive mechanism for the lift plate (31b). The horizontal member (15) horizontally installed between the column members (14a) and (14b) along the width direction of the stacker device (10) (or the telescopic conveyor mechanism (12)) includes a column member (14a ) And a driving mechanism for the column member (14b) are mounted. As the first motor (32) rotates, the drive mechanism and the interlocking mechanism operate to move the elevating plates (31a) and (31b), that is, the stacking mechanism (30) up and down.

  As the stacking mechanism (30) moves up and down, the telescopic conveyor mechanism (12) tilts with its upstream end as a fixed end. Further, the length of the telescopic conveyor mechanism (12) changes with the vertical movement of the stacking mechanism (30). The telescopic conveyor mechanism (12) includes a telescopic frame (12a) and a telescopic conveyor unit (12b) attached to the frame. The frame (12a) includes an upstream frame portion and a downstream frame portion (both not shown), and one frame portion is slidably inserted into the other frame portion. The conveyor unit (12b) is a belt conveyor that has one or a plurality of endless belts that are circulated and driven, and includes a plurality of upstream end portions of the upstream frame portion and downstream end portions of the downstream frame portion. The shafts to which the pulleys are respectively fixed are fixed (one shaft body is a drive shaft, the other shaft body is a driven shaft, and the drive shaft is rotationally driven by a first drive stage not shown. ), An endless belt is stretched between these shafts. The upper part of the endless belt traveling from the upstream to the downstream constitutes the transport surface of the conveyor unit (12b). Below the frame (12a), there is provided a tension maintaining mechanism (12c) having a pair of shaft bodies to which a plurality of pulleys are respectively fixed. The lower part of the endless belt is stretched between the pair of shafts in a substantially S shape, and the tension of the endless belt is changed by changing the distance between the shafts as the frame (12a) expands and contracts. Is maintained.

  A movable conveyor mechanism (70) capable of traveling on the floor surface toward the downstream side or the upstream side is housed under the telescopic conveyor mechanism (12). Details of the moving conveyor mechanism (70) will be described later. Below the stacking mechanism (30), a carriage (16) on which the cardboard sheet S is placed is disposed on the floor surface. The height of the stacking mechanism (30) is appropriately adjusted according to the height of the cardboard sheets S stacked on the carriage (16).

  Long support members (34a) and (34b) having a rectangular cross section are mounted on the inner surfaces of the elevating plates (31a) and (31b) of the stacking mechanism (30). The support members (34a) and (34b) are supported by guide / drive mechanisms (not shown) provided on the inner surfaces of the elevating plates (31a) and (31b), and are disposed horizontally and parallel to each other. Each lifting plate (31a) (31b) is provided with a motor connected to the guide and drive mechanism (both not shown), and by rotating the motor, the support members (34a) (34b) It is configured to be movable toward the upstream side or the downstream side. The positions of the support members (34a) (34b) are appropriately adjusted according to the size of the corrugated cardboard sheets S stacked in the stacker device (10).

  Between the elevating plates (31a) and (31b), a guide member (35) is installed horizontally along the machine width direction, and the guide member (35) has a pair of plate-like lateral regulating members ( 36a) and 36b are attached so as to be close to and away from each other. These lateral regulating members (36a) and (36b) are configured to approach or separate when the second motor (37) provided on the outside of the elevating plate (31a) rotates, and the stacker device (10) It is used to align the stacked cardboard sheets S in the machine width direction. In the unconnected state, the interval between the lateral regulating members (36a) and (36b) is adjusted according to the width of the corrugated cardboard sheets S to be stacked.

  On the upstream side of the lateral regulating members (36a) and (36b), an upstream regulating portion (40) that regulates the upstream movement of the corrugated cardboard sheets S is provided at the downstream end of the telescopic conveyor mechanism (12). Is disposed between the elevating plates (31a) and (31b). The upstream regulating portion (40) includes a plate-like member (41) arranged along the vertical direction, and a belt-like upstream bucket member (42) arranged below the plate-like member (41). ing. Both end portions of the upstream bucket member (42) are connected to drive mechanisms (not shown) provided on the elevating plates (31a) and (31b). The side bucket member (42) rotates downstream, and takes either the vertical posture shown in FIG. 1 or a horizontal posture (not shown) that projects horizontally from the plate-like member (41) toward the downstream side. .

  3 is an enlarged side view of a downstream portion of the stacker device (10) in FIG. 1, and FIG. 4 is a perspective view of the periphery of the end portion of the support member (34a) as viewed from the downstream side. . The stacking mechanism (30) is configured substantially symmetrically with respect to the vertical plane passing through the center line perpendicular to the machine width direction, and the periphery of the end portion of the support member (34b) is also supported by the support member (34b). It is comprised similarly to the edge part periphery. As shown in FIGS. 2 to 4, at the downstream end of each support member (34a) (34b), there are first mounting plates (43a) (43b) and second mounting plates (44a) (44b). Has been placed. The rectangular second mounting plates (44a) and (44b) are fixed to the outer side surfaces of the support members (34a) and (34b) so as to be orthogonal to the support members (34a) and (34b). The upper part of the second mounting plate (44a) (44b) extends upward from the upper end face of the support member (34a) (34b), and the first mounting plate (43a) (43b) is a block-shaped spacer. It is fixed to the upper part of the second mounting plate (44a) (44b) via (45a) (45b).

  Each first mounting plate (43a) (43b) extends downstream from the downstream end face of the support member (34a) (34b) or from the second mounting plate (44a) (44b). The upper ends of the rotating members (46a) and (46b) are pivotally supported by the extending portions of the first mounting plates (43a) and (43b). Each rotating member (46a) (46b) is a plate material formed in a substantially q-shape.

  Between the rotating members (46a) and (46b), there is provided a downstream side regulating portion (60) for regulating the downstream movement of the cardboard sheets S stacked by the stacker device (10). The downstream side restriction part (60) is disposed away from the downstream end of the telescopic conveyor mechanism (12) and from the upstream side restriction part (40) to the downstream side. In the non-connected state, it is disposed so as to face the upstream regulating portion (49). The downstream regulating portion (60) includes a frame (61) disposed between the rotating members (46a) and (46b), and a flexible sheet-like member attached to the frame (61) so as not to be separated. The flexible sheet-like member (62) is, for example, a thick vinyl sheet, and contacts the corrugated cardboard sheet discharged from the downstream end of the telescopic conveyor mechanism (12). Provided to drop down.

  A plurality of rectangular plate-like members (63) are fixed to the lower part of the frame (61). These plate-like members (63) are spaced apart at predetermined intervals along the machine width direction, and are fixed to the respective plate-like members (63) below the plate-like members (63). A belt-like downstream bucket member (65) is attached via the hinge (64). A substantially L-shaped bracket (66) is fixed to both ends of the downstream bucket member (65). A U-shaped support (47) is fixed to the outer surface of each rotating member (46a) (46b), and a first cylinder (48) is attached to the support (47). The tip of the rod of each first cylinder (48) is pivotally supported by a plate-like pivotal support member (49) joined to the bracket (66). Each first cylinder (48) is supported by a support body (47) so as to be rotatable about an axis perpendicular to the outer surface of the rotating members (46a) and (46b). From the state shown in FIG. When the rod of the first cylinder (48) provided in each of the members (46a) and (46b) extends, the downstream bucket member (65) rotates upstream and is disposed horizontally.

  When the cardboard sheets S are sequentially stacked by the stacker device (10), the upstream bucket member (42) of the upstream regulating portion (40) and the downstream bucket member (65) of the downstream regulating portion (60) are: Both are in a vertical posture. The cardboard sheets S discharged from the downstream end of the telescopic conveyor mechanism (12) hit the plate-like member (41) and are sequentially stacked on a carriage (16) disposed on the floor as shown in FIG. . Further, as the cardboard sheets S stacked on the carriage (16) increase, the stacking mechanism (30) appropriately rises. The position in the horizontal plane of the corrugated cardboard sheets S to be stacked is regulated by the lateral regulating members (36a) (36b), the upstream regulating part (40), and the downstream regulating part (60), and the lateral deviation of the corrugated cardboard sheet S is suppressed. Yes.

  In this embodiment, the upstream bucket member (42) and the downstream bucket member (65) are used for the corrugated cardboard discharged from the telescopic conveyor mechanism (12) when collecting the corrugated cardboard sheet S stored on the carriage (16). Used to hold the sheet S temporarily. When the cart (16) is moved to collect the cardboard sheet S, the upstream bucket member (42) rotates downstream, and the downstream bucket member (65) rotates upstream, both of which are in a horizontal position. To be. When in the horizontal position, the upper surface of the upstream bucket member (42) and the upper surface of the downstream bucket member (65) are arranged in the same plane, and are discharged from the telescopic conveyor mechanism (12) to be a flexible sheet. The corrugated cardboard sheet S hitting the shaped member (62) is received by the upstream bucket member (42) and the downstream bucket member (65). When the trolley (16) emptied returns the cardboard sheet S to a predetermined position, the stacking mechanism (30) is lowered to the vicinity of the trolley (16), and further, the upstream bucket member (42) and the downstream side The bucket members (65) are both brought into the vertical state, and the bundle of cardboard sheets S held by the stacking mechanism (30) is dropped onto the carriage (16). Then, the cardboard sheets S are further stacked on the bundle.

  The feature of the stacker device (10) of the present embodiment is that the cardboard sheet conveyed by the telescopic conveyor mechanism (12) from the state shown in FIG. 1 or FIG. In the operation mode in which S is sent to the folder gluer, that is, in the connected state, the downstream regulating portion (60) rotates or swings approximately 90 degrees toward the downstream side with the upper end side as the support shaft side. . In the stacker device (10) of the present embodiment, the rotating members (46a) and (46b) are simultaneously rotated approximately 90 degrees to the downstream side, so that the downstream side provided between the rotating members (46a) and (46b). The regulation part (60) rotates. When the stacker device (10) changes from the connected state to the non-connected state, the reverse operation is performed. Hereinafter, a mechanism for rotating the rotating members (46a) and (46b) in the stacker device (10) of the present embodiment will be described.

  Referring to FIGS. 2 to 4, a horizontal shaft member (51) protrudes outwardly from the upper portion of the outer surface of each rotating member (46a) (46b), and each shaft member (51) The bearings (52) provided on the first mounting plates (43a) (43b) are inserted from the inside of the first mounting plates (43a) (43b). The two shaft members (51) of these rotating members (46a) and (46b) are arranged on the same straight line along the machine width direction, and the stacking mechanism (30) is used to expand and contract the conveyor mechanism (12 ) Higher than the downstream end portion (see FIG. 1).

  A support plate (53) extending laterally is joined to the outer lower end of each second mounting plate (44a) (44b). Each of these support plates (53) is a rotating member (46a). It is used to mount a second cylinder (54) which is a driving means for rotating (46b). A plate-shaped pivot member (55) on which the bottom of the second cylinder (54) is pivoted is joined to the upper surface of each support plate (53). Further, the tip of the rod of each second cylinder (54) is pivotally supported by a plate-like pivot member (56) provided at the downstream end of each rotating member (46a) (46b). Each pivot member (56) is joined to the vicinity of the end of the bracket (57) extending laterally from the outer surface of the rotating members (46a) (46b). Each second cylinder (54) is disposed in a state of being inclined downstream through the side of the first cylinder (48).

  When the rods of these second cylinders (54) extend at the same time, as shown in FIG. 5, the rotating members (46a) and (46b) rotate about 90 ° around the shaft member (51) toward the downstream side. Along with that, the downstream side restriction part (60) attached to the rotating members (46a) and (46b), that is, the frame (61), the flexible sheet-like member (62), the plate-like member (63), The hinge (64), the downstream bucket member (65), the first cylinder (48), etc. rotate approximately 90 ° around the shaft member (51). When the rod of the second cylinder (54) contracts, the rotating member (46a), and thus the downstream side restricting portion (60), returns to the position or posture shown in FIG.

  The stacking mechanism (30) of the stacker device (10) of the present embodiment is provided with a lock mechanism that locks the position or posture of the rotating members (46a) and (46b). The lock mechanism includes a thin cylinder (58) provided on each first mounting plate (43a) (43b). Each thin cylinder (58) is disposed downstream of the bearing (52) on the outer surface of the first mounting plate (43a) (43b). Each first mounting plate (43a) (43b) has an opening (not shown) through which the cylindrical rod of the thin cylinder (58) passes, and the rod of the thin cylinder (58) 1 It can be made to protrude and retract from the inner surface of the mounting plate (43a) (43b) toward the rotating member (46a) (46b).

  Each rotating member (46a) (46b) is provided with a first opening (59 ') arranged so as to overlap the thin cylinder (58) in the state shown in FIG. 54) is extended, and the rotating members (46a), (46b) and the like are rotated by 90 °, and then the rod of each thin cylinder (58) is extended and fitted into the first opening (59 ′). Thereby, in the rotation state shown in FIG. 5, the rotating members (46a) and (46b) are locked. For example, even if the second cylinder (54) malfunctions, the rotating members (46a) and (46b) It does not rotate. When the rotating members (46a) and (46b) are returned to the state shown in FIG. 3, this locked state is released. Each rotating member (46a) (46b) is also provided with a second opening (59 '') arranged so as to overlap the thin cylinder (58) in the state shown in FIG. When the rod of the thin cylinder 58 is extended and fitted into the second opening 59 ″, the rotating members 46a and 46b are locked in the state shown in FIG. When the rotating members (46a) and (46b) rotate to the positions shown in FIG. 5, this locked state is released.

  FIG. 6 thru | or FIG. 9 is explanatory drawing explaining the transfer operation | movement between a non-connection state and a connection state in the box making machine using the stacker apparatus (10) of a present Example. FIG. 6 shows the stacker device (10) in a disconnected state. On the downstream side of the stacker device (10), an intermediate conveyor mechanism (80) and a paper feed unit (90) are arranged apart from the stacker device (10). A folder gluer (not shown) is disposed on the downstream side of the paper feeding unit (90). When the box making process is performed in the folder gluer, that is, when the box making machine is connected, the sheet feeding unit (90) stacks and holds the cardboard sheets sent from the intermediate conveyor mechanism (80). At the same time (see FIG. 9), it is sent out one by one toward the folder gluer.

  The intermediate conveyor mechanism (80) includes an upstream conveyor unit (81), a downstream conveyor unit (82), and a support frame (83) on which they are mounted. As the upstream conveyor unit (81) and the downstream conveyor unit (82), for example, a belt conveyor having one or a plurality of endless belts that are circulated and driven is used. The downstream conveyor unit (82) is attached to the support frame (83) so that the transport surface is horizontal. The downstream end of the upstream conveyor unit (81) is pivotally supported by the support frame (83) in the vicinity of the upstream end of the downstream conveyor unit (82) and extends along the machine width direction. Around the horizontal axis, the upstream conveyor unit (81) rotates or swings. In the unconnected state, as shown in FIG. 6, the downstream conveyor unit (82) is disposed substantially vertically with its upstream end facing downward and is housed in the support frame (83).

  When shifting from the unconnected state to the connected state, the corrugated cardboard from the die cutter unit is used for the auxiliary conveyor mechanism (11) and the telescopic conveyor mechanism (12) of the stacker device (10) used as shown in FIG. The sheet supply is stopped. Thereafter, as shown in FIG. 6, the stacking mechanism (30) is raised to a predetermined height near the upper portions of the column members (14a) (14b), and the intermediate conveyor mechanism (80) and the moving conveyor mechanism (70) The carriage (16) is moved so that it does not exist in the area between. Further, the lateral regulating member (36a) and the lateral regulating member (36b) of the stacking mechanism (30) are disposed so as to be close to the supporting member (34a) and the supporting member (34b), respectively.

  Next, as shown in FIG. 7, the upstream conveyor unit (81) of the intermediate conveyor mechanism (80) is rotated, and the upstream conveyor unit (81) is arranged horizontally with the downstream conveyor unit (82). (That is, the conveyance surface of the upstream conveyor unit (81) and the conveyance surface of the downstream conveyor unit (82) are arranged in the same horizontal plane). Further, the moving conveyor mechanism (70) is moved to the downstream side just before the upstream end of the upstream conveyor unit (81). The moving conveyor mechanism (70) is disposed below the downstream side regulating portion (60). Further, the rotating members (46a) and (46b) of the stacker device (10), and consequently the downstream side regulating portion (60), rotate downstream as described above, and the downstream side regulating portion (60) becomes substantially horizontal. Be placed.

  The moving conveyor mechanism (70) is connected to a base part (71) provided so as to be able to run on the floor, a horizontally connected conveyor unit (72), a connected conveyor unit (72), and a base part (71). The link mechanism (73), and the link mechanism (73) supporting the link conveyor unit (72) expands and contracts to move the link conveyor unit (72) up and down. For the connection conveyor unit (72), for example, a belt conveyor including one or a plurality of endless belts that are circulated and driven is used. As shown in FIG. 1, in the unconnected state of the stacker device (10), the moving conveyor mechanism (70) is connected to the telescopic conveyor mechanism (12) with the connected conveyor unit (72) being close to the base (71). It is stored below. As shown in FIG. 7, after the moving conveyor mechanism (70) moves, the link mechanism (73) extends upward, so that the connecting conveyor unit (72) of the moving conveyor mechanism (70) rises, and the connecting conveyor unit The downstream end of (72) is adjacent to the upstream end of the upstream conveyor unit (81), and the connected conveyor unit (72) is disposed at substantially the same height as the upstream conveyor unit (81) ( That is, the transport surface of the connected conveyor unit (72) is substantially the same height as the transport surface of the upstream conveyor unit (81). Thereby, as shown in FIG. 8, a connection conveyor unit (72) and the upstream conveyor unit (81) of an intermediate conveyor mechanism (80) are connected.

  Next, the stacking mechanism (10) of the stacker device (10) is arranged so that the downstream end of the telescopic conveyor mechanism (12) is disposed at substantially the same height as the connected conveyor unit (72) of the moving conveyor mechanism (70). 30) height is adjusted. Specifically, until the downstream end of the telescopic conveyor mechanism (12) is disposed at substantially the same height as the connected conveyor unit (72) of the moving conveyor mechanism (70) (that is, the telescopic conveyor mechanism (12) 8) from the state shown in FIG. 8 until the edge on the downstream side of the transport surface or the highest part of the transport surface and the transport surface of the coupled conveyor unit (72) are substantially the same height). Lower the stacking mechanism (30). As a result, as shown in FIG. 9, the intermediate conveyor unit (72) and the telescopic conveyor mechanism (12) are connected in series without any step or drop. On both sides of the coupled conveyor unit (72) of the moving conveyor mechanism (70), the side regulating members (36a) (36a) (36a) (34a) (34a) and the supporting members (34a) (34b) arranged close to 36b) is arranged. The length, width, arrangement, etc. of the connecting conveyor unit (72) and the shape, arrangement, etc. of the components of the stacking mechanism (30) do not interfere when the stacking mechanism (30) is lowered from the state shown in FIG. Is given to.

  In this way, the stacking mechanism (30) of the stacker device (10) is lowered while the downstream regulating portion (60) is rotated and arranged substantially horizontally, so that the stacker device (10 ), The connecting conveyor unit (72) and the telescopic conveyor mechanism (12) are connected in series so that there is no step or drop. Thereby, a series of corrugated cardboard sheets conveyed in a lapped state from the telescopic conveyor mechanism (12) are smoothly conveyed without being disturbed between the telescopic conveyor mechanism (12) and the moving conveyor mechanism (70). FIG. 10 schematically shows a pattern in which a corrugated board sheet is conveyed to the paper feeding unit (90) in a lapped state in a box making machine using the stacker device (10) of the present embodiment.

  The sheet feeding unit (90) includes a regulating member (91) that regulates the downstream movement of the cardboard sheet S discharged from the downstream conveyor unit (82) of the intermediate conveyor mechanism (80), and a regulating member (91). And a plurality of feed rollers provided on the downstream side of the feed roller (92). The regulating member (91) is a plate material arranged in the vertical direction. In this embodiment, the support frame (83) of the intermediate conveyor mechanism (80) is provided with a support roller (93) and a sheet aligning mechanism (94), and is discharged from the downstream conveyor unit (82). The corrugated cardboard sheets S are stacked obliquely between the restricting member (91) and the restricting member of the sheet aligning mechanism (94). The lowermost corrugated cardboard sheet S is supported by a feed roller (92) and a support roller (93). When the feed roller (92) rotates, the feed roller (92) and the regulating member (91) From the middle, it is sent one by one toward the folder gluer.

  When the stacker device (10) shifts from the connected state to the disconnected state, an operation opposite to the operation performed when the stacker device (10) shifts from the disconnected state to the connected state is performed. After the stacker device (10) shifts from the state shown in FIG. 9 to the state shown in FIG. 6, the carriage (16) is placed at a predetermined position, and the stacking mechanism (30) is lowered to the carriage (16). The cardboard sheets S are stacked so as to be close to each other.

  The stacking mechanism (30) of the stacker device (10) of the present embodiment is configured such that when the cardboard sheet is conveyed in a separated state from the telescopic conveyor mechanism (12) in the connected state, the moving conveyor mechanism (70) performs a series of operations. Wrapping means for overlapping the corrugated cardboard sheets in the form of roof tiles is provided. The wrapping means has a plurality (four in this embodiment) of leaf springs (101), and these leaf springs (101) rotate around the center of the guide member (35) of the stacking mechanism (30). It is fixed to a horizontal shaft (102) that is movably disposed. The shaft body (102) is disposed along the machine width, and the base end portion of the leaf spring (101) is joined to the shaft body (102).

  When not in use, the leaf spring (101) of the wrap means is held in an inclined posture with the downstream side raised as shown in FIG. When the cardboard sheet conveyed in the separated state is put into a wrap state on the moving conveyor mechanism (70), the shaft (102) rotates under the connected state as shown in FIG. The free end of the spring (101) is disposed in the vicinity of the conveying surface of the connected conveyor unit (72) of the moving conveyor mechanism (70). Thus, the free end of the leaf spring (101) comes into contact with the upper surface of the corrugated cardboard sheet S to be conveyed and functions as a resistance in the conveying line. When the box making machine operates in such a mode, the transport speed of the moving conveyor mechanism (70) and further the intermediate conveyor mechanism (80) is slower than the transport speed of the telescopic conveyor mechanism (12). Is done. Furthermore, when a wrap means is used, the downstream end of the telescopic conveyor mechanism (12) is higher than the connected conveyor unit (72) of the moving conveyor mechanism (70) (that is, a step is generated). The height of the stacking mechanism (30) is adjusted.

  In the stacking mechanism (30) of the stacker device (10) of the above-described embodiment, the first mounting plates (43a) (43b) are provided at the downstream end portions of the support members (34a) (34b) provided so as to be movable in the horizontal direction. ) And the second mounting plate (44a) (44b), etc., the frame body (61), the regulating member (40) (60), the lateral regulating member (36a) (36b) and the rotating member (46a) (46b) Etc. are attached. However, in the present invention, the support members (34a) and (34b) are fixed to the elevating plates (31a) and (31b), and a movable member that moves horizontally along the support members (34a) and (34b) is provided. The movable member includes the first mounting plates (43a) and (43b) and the second mounting plates (44a) and (44b), the frame body (61), the regulating members (40) and (60), and the lateral regulating member (36a). ) (36b), rotating members (46a), (46b), etc. may be attached.

  In the stacker device (10) of the above embodiment, the moving conveyor mechanism (70) can run on the floor and is stored below the telescopic conveyor mechanism (12) when not in use. The form of the mechanism (70), and further the form of the coupled conveyor mechanism (80) is not particularly limited. For example, omitting the moving conveyor mechanism (70) and using the upstream conveyor unit (81) of the linked conveyor mechanism (80) instead, as disclosed in FIG. 2 of JP-A-11-193168. You can also.

  The above description is provided to illustrate the present invention and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

(10) Stacker device
(12) Telescopic conveyor mechanism
(14a) (14b) Column member
(30) Stacking mechanism
(31a) (13b) Lift plate
(34a) (34b) Support member
(40) Upstream regulation section
(43a) (43b) First mounting plate
(44a) (44b) Second mounting plate
(46a) (46b) Rotating member
(48) 1st cylinder
(51) Shaft member
(54) Second cylinder
(58) Thin cylinder
(59 ') (59'') opening
(60) Downstream restriction
(70) Moving conveyor mechanism
(80) Intermediate conveyor mechanism
(90) Paper feed unit
(101) Leaf spring

Claims (8)

A first conveyor mechanism for conveying the cardboard sheets; a stacking mechanism for stacking the cardboard sheets discharged from the downstream end of the first conveyor mechanism; and a second conveyor mechanism that is movably provided and can be connected to the first conveyor mechanism. Two stacker mechanisms, and the stacking mechanism is configured to be movable up and down along the vertical direction.
The downstream end portion of the first conveyor mechanism is supported by the stacking mechanism so that the first conveyor mechanism tilts as the stacking mechanism moves up and down.
The stacking mechanism includes an upstream side regulation unit and a downstream side regulation unit that regulate the movement of the corrugated cardboard sheets discharged and stacked from the downstream side end of the first conveyor mechanism to the upstream side and the downstream side, respectively. The downstream side regulation part is arranged to be spaced downstream from the downstream side end part of the first conveyor mechanism and the upstream side regulation part,
The downstream side restriction portion of the stacking mechanism is between a first posture disposed opposite to the upstream side restriction portion and a second posture rotated approximately 90 ° from the first posture toward the downstream side. , Configured to be rotatable around a horizontal axis provided in the stacking mechanism,
The horizontal axis is provided perpendicularly to the conveying direction of the first conveyor mechanism and along the width direction of the first conveyor mechanism, and the stacking mechanism has a lower end than the downstream end of the first conveyor mechanism. Placed in a high position,
In a state where the downstream side regulation portion of the stacking mechanism is in the second posture, the second conveyor mechanism is disposed below the downstream side regulation portion and is continuously provided to the first conveyor mechanism,
The stacking mechanism so that the upstream end of the second conveyor mechanism disposed below the downstream regulating portion of the stacking mechanism and the downstream end of the first conveyor mechanism have substantially the same height. Stacker device whose height is adjusted.   The stacking mechanism is configured such that when a series of cardboard sheets are separated from each other and conveyed on the first conveyor mechanism, the cardboard sheets are placed on the roof tile on the second conveyor mechanism that is connected to the first conveyor mechanism. The stacker apparatus according to claim 1, further comprising means for stacking in a shape. The second conveyor mechanism is configured to be able to travel on the floor surface toward the downstream side or the upstream side, and can be stored below the first conveyor mechanism, and is configured to be movable up and down. 2. The stacker device according to 2. In a state where the second conveyor mechanism is disposed below the downstream side regulating portion and is continuously provided to the first conveyor mechanism, the second conveyor mechanism is located on the downstream side of the second conveyor mechanism. The stacker device according to any one of claims 1 to 3, wherein the conveyor mechanism and the transport surface of the second conveyor mechanism are connected in series so as to have substantially the same height as the transport surface of the third conveyor mechanism. The stacking mechanism includes a driving unit that rotates the downstream side regulation unit, and a lock unit that holds the downstream side regulation unit in the first posture or the second posture even when the driving unit operates. The stacker device according to any one of claims 1 to 4 . The stacking mechanism is disposed horizontally and parallel to each other, and is a pair of support members that are perpendicular to the transport direction of the first conveyor mechanism and spaced apart in the width direction of the first conveyor mechanism, and the pair of support members And a pair of rotating members respectively attached to the downstream ends of the
The downstream regulating portion is provided between the pair of rotating members,
The stacker device according to any one of claims 1 to 4, wherein driving means for rotating the downstream side restricting portion is disposed outside each of the pair of rotating members. The downstream regulating portion includes a downstream bucket member,
The upstream regulating portion includes an upstream bucket member,
When the downstream regulating portion is in the first posture, the downstream bucket member rotates toward the upstream side, the upstream bucket member rotates toward the downstream side, and the downstream bucket member The stacker device according to any one of claims 1 to 6, wherein an upper surface of the upstream bucket member and an upper surface of the upstream bucket member are disposed in the same plane. The downstream side regulating portion includes a sheet-like member, and when the stacking mechanism is in the first posture, the corrugated cardboard sheet discharged from the first conveyor mechanism hits the sheet-like member and is dropped downward. The stacker device according to any one of claims 1 to 7.

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