JP6602138B2 - Blank transfer device - Google Patents

Description

  The present invention relates to a blank transport device.

  Patent Document 1 discloses a technique for conveying a blank that forms a body (portion held by a hand) of a paper cup. Specifically, the blank is first pulled down by the rotatable suction pad while the lowest value blank among the blanks stacked on the blank stacker is sucked and fed into the feeder. Next, the blank fed into the feeder is transported to the tip of the feed belt that is sandwiched between a pair of upper and lower feed belts provided in the feeder and extends to the lower vicinity of the mandrel. The blank conveyed to the tip of the feed belt is supplied so as to be pushed under the mandrel by an arc motion of a pushing claw (kicker) around the rotation axis.

JP 2012-24962 A

  However, the inventor of the present application has found that the conventional conveyance such as the conveyance of the blank disclosed in Patent Document 1 causes various problems such as scratches or dirt on the blank, and a blank misalignment. A specific example of the defect will be described later).

  An object of this invention is to provide the blank conveyance apparatus with few generation | occurrence | production of the malfunction during conveyance.

In order to achieve the above object, a blank transport device according to the first aspect of the present invention is:
A blank transport device that transports a blank that forms a cylindrical body constituting a paper container by forming a thermoplastic resin layer on at least the surface and bonding the front surface of one end and the back surface of the other end with the thermoplastic resin layer. There,
A transport unit that transports the blank by placing the blank and moving from the first position to a second position ahead of the first position;
A first moving mechanism that moves the transport unit from the first position to the second position and then moves it backward to return to the first position;
A conveying belt which the blank is transported by the transport unit rests, a transport mechanism for transporting put the blank to said conveyor belt,
A heater for heating the blank being carried on the carrying belt;
By moving from the third position to the fourth position, an extruding unit that pushes the blank forward by pushing the rear end of the blank conveyed by the conveyance mechanism;
A second moving mechanism that moves the pusher from the third position to the fourth position;
The first moving mechanism includes:
A support unit that supports the transport unit in a reciprocating manner by linear movement;
When the transport unit is moved from the first position to the second position, the transport unit is linearly moved in the forward direction on the support unit;
When returning the transport unit prior Symbol first position, said supporting portion is moved to the transport section downward by moving downward by separating the transport unit from the blank, the transport unit which is separated Move linearly in the return direction opposite to the forward direction on the support,
The transport mechanism transports the blank on the transport belt without sandwiching the blank from above and below,
The conveyor belt is
Comprising an adsorbing part for adsorbing the blank;
Adsorption goods to send al transportable said blank by said suction unit,
The length of the suction portion in the width direction of the transport belt is shorter than the length in the width direction of the blank transported by the transport belt,
The heater heats the thermoplastic resin layer by heating the one end portion of the blank, and the heated thermoplastic resin layer is bonded to the surface of the one end portion and the back surface of the other end portion of the blank. It is an electric heater that functions as an adhesive to be bonded,
The second moving mechanism linearly moves the pushing portion along the traveling direction of the blank when moving the pushing portion from the third position to the fourth position.

In order to achieve the above object, a blank transport device according to a second aspect of the present invention is:
A blank transport device for transporting a blank constituting a paper container,
A conveying unit that conveys the blank by moving forward of the forward position than the rear position from the rear position by placing the blank,
The transport unit, and a turning mechanism moves to return to the rear position by moving backwards after having moved to the forward position from the rear position,
Before KiUtsuri dynamic mechanism,
A support unit that supports the transport unit in a reciprocating manner by linear movement;
When the transport unit is moved from the rear position to the front position, the transport unit is linearly moved in the outward direction on the support unit;
When returning the transport unit before Symbol rear position, the said transport unit supporting portion by moving downward is moved downward by separating the transport unit from the blank, the said transport unit which is separated A linear movement is made on the support portion in the return direction opposite to the forward direction .

In order to achieve the above object, a blank transport device according to a third aspect of the present invention is:
A blank transport device that transports a blank that forms a cylindrical body constituting a paper container by forming a thermoplastic resin layer on at least the surface and bonding the front surface of one end and the back surface of the other end with the thermoplastic resin layer. There,
A conveying belt which the blank rests, a transport mechanism for transporting put the blank to said conveyor belt,
A heater for heating the blank being carried on the carrying belt ,
The transport mechanism transports the blank on the transport belt without sandwiching the blank from above and below,
The conveyor belt is
Comprising an adsorbing part for adsorbing the blank;
Adsorption goods to send al transportable said blank by said suction unit,
The length of the suction portion in the width direction of the transport belt is shorter than the length in the width direction of the blank transported by the transport belt,
The heater heats the thermoplastic resin layer by heating the one end portion of the blank, and the heated thermoplastic resin layer is bonded to the surface of the one end portion and the back surface of the other end portion of the blank. It is an electric heater that functions as an adhesive for bonding .

In order to achieve the above object, a blank transport device according to a fourth aspect of the present invention is:
A blank transport device for transporting a blank constituting a paper container,
By moving from the rear position to the front position, an extruding part that pushes the blank forward by pushing the rear end of the blank; and
The extrusion, and a moving mechanism Before moving to the forward position from the rear position,
Before KiUtsuri dynamic mechanism,
A support portion for supporting the extrusion portion so as to be reciprocally movable by linear movement;
After moving the pushing portion upward by moving the support portion upward, the pushing portion is moved linearly in the forward direction on the supporting portion, so that the pushing portion is moved from the rear position to the front position. In a straight line along the direction of travel of the blank ,
When the pushing portion is returned to the rear position, the pushing portion is moved downward by moving the supporting portion downward, and the pushing portion is moved backward on the supporting portion opposite to the forward direction. Move straight in the direction .

  According to the present invention, it is possible to reduce the occurrence of problems during conveyance.

It is a figure which shows the structure of the blank conveying apparatus which concerns on one Embodiment of this invention. It is the figure which looked at the blank supply mechanism of a blank conveyance apparatus from the side. FIG. 4 is a schematic cross-sectional view illustrating a state in which the slice server is in contact with a blank or a state in which the slice server is transported, and is a schematic cross-sectional view of the slice server and the like cut in a direction penetrating the paper surface of FIG. 3. It is the figure which looked at the blank conveyance mechanism of a blank conveyance device from the side. It is the figure which looked at the blank conveyance mechanism of a blank conveyance device from the top. It is the figure which looked at the blank carrying-out mechanism of a blank conveyance apparatus from the side. It is a schematic diagram which shows operation | movement of a blank supply mechanism. It is a schematic diagram which shows operation | movement of a blank supply mechanism. It is a schematic diagram which shows operation | movement of a blank supply mechanism. It is a schematic diagram which shows operation | movement of a blank supply mechanism. It is a schematic diagram which shows operation | movement of a blank carrying-out mechanism. It is a schematic diagram which shows operation | movement of a blank carrying-out mechanism. It is a schematic diagram which shows operation | movement of a blank carrying-out mechanism. It is a schematic diagram which shows operation | movement of a blank carrying-out mechanism. It is a schematic diagram which shows operation | movement of a blank supply mechanism. It is a schematic diagram which shows operation | movement of a blank carrying-out mechanism.

  Hereinafter, the blank conveyance apparatus 110 which concerns on one Embodiment of this invention is demonstrated, referring drawings.

  As shown in FIG. 1, the blank conveyance device 110 includes a blank supply mechanism 700, a blank conveyance mechanism 800, and a blank carry-out mechanism 900, and conveys a substantially fan-shaped paper blank BL to the processing device KS. . The blank BL is a paper board formed in a substantially fan shape, and a synthetic resin film having thermoplasticity is coated (laminated) on one side or both sides thereof.

  The blank supply mechanism 700 supplies a plurality of stacked blanks BL to the blank transport mechanism 800 one by one.

  The blank transport mechanism 800 transports the blank BL supplied from the blank supply mechanism 700 to the blank carry-out mechanism 900 while heating.

  The blank carry-out mechanism 900 carries the blank BL conveyed by the blank conveyance mechanism 800 to the processing apparatus KS.

  The processing apparatus KS has a mandrel MD. The blank BL is transported to a predetermined position below the mandrel MD by the blank carry-out mechanism 900. The blank BL is processed after being wound around the mandrel MD by a holder wing or the like to form a body portion (portion held by the user) of the paper cup. In addition, you may make it form the trunk | drum and outer sleeve of the inner cup of the paper cup which has a double structure from the blank BL.

  Each operation of the blank supply mechanism 700, the blank transport mechanism 800, and the blank carry-out mechanism 900 is controlled by the control unit 50 including a computer or the like. The control unit 50 may be provided in the blank conveyance device 110 or may be provided separately from the blank conveyance device 110. Further, the control unit 50 may further control the processing apparatus KS and the like.

  Next, the configuration of the blank supply mechanism 700, the blank transport mechanism 800, and the blank carry-out mechanism 900 will be described in detail with reference to the drawings. Hereinafter, the conveyance line of the blank BL is referred to as a feed line FL (see FIG. 2 and the like). The direction in which the blank BL travels is referred to as the front or downstream, and the opposite direction is referred to as the rear or upstream (see FIG. 2 and the like). The feed line FL is inclined so that the downstream side of the blank BL is lowered. Further, the width direction of the blank BL or the like conveyed by the feed line FL (the direction penetrating through the paper surface of FIG. 2 and the vertical direction of FIG. 5) is the left-right direction (see FIGS. 3 and 5). Further, a direction orthogonal to the front-rear direction and the width direction (left-right direction) is defined as the up-down direction (see FIG. 2 and the like).

  As shown in FIG. 2, the blank supply mechanism 700 includes a fixed table 701A, an attachment member 701B, a blank stacker 702, a slice server 703, a rotation support portion 704, a rotation shaft 705, a first drive motor 706, a first connection member 707, A second drive motor 708 and a second connecting member 709 are provided.

  The fixed table 701A is a flat plate to which the blank stacker 702 is fixed. The fixed table 701A is arranged so that the upper surface thereof extends along the front-rear direction. Accordingly, the fixed table 701A is inclined so that the blank conveyance mechanism 800 side is lowered.

  The blank stacker 702 is fixed to the fixed table 701A via a predetermined mounting member 701B. The blank stacker 702 is a frame that accommodates the blank BL. In the blank stacker 702, a large number of blanks BL are accommodated in a stacked state.

  The blank stacker 702 is configured so that the blank BL at the lowest position among the blanks BL to be accommodated is sent out forward. For example, the blank stacker 702 has a gap 702A at the lower portion on the front side (downstream side). The blank BL at the lowest position in the blank stacker 702 is sent out from the gap 702A. Moreover, the blank stacker 702 includes a support plate 702B that supports the blank BL accommodated in the bottom. The upper surface of the support plate 702B (surface in contact with the blank BL) has the front-rear direction and the left-right direction as in-plane directions. The upper surface is smooth so that the blank BL is not damaged by the support plate 702B when the blank BL is fed out. The width of the support plate 702B (the length in the left-right direction) is narrower than the width of the blank BL, and the support plate 702B has an in-plane direction in the front-rear direction and the left-right direction, and is long in the front-rear direction.

  The slice server 703 is a transport unit that loads the blanks BL stored in the blank stacker 702 one by one and transports them to the blank transport mechanism 800. The slice server 703 includes a slice server main body 703A, an adsorption portion 703B, an air passage 703C, and a connecting portion 703D.

  The slicer server body 703A is slidably attached to the guide rail 704B of the rotation support portion 704. The slicer server main body 703A has a bearing or the like that engages with the guide rail 704B and rolls on the lower portion, and slides on the guide rail 704B.

  The suction part 703B is a part on which the blank BL is placed, and sucks the blank BL. The suction portion 703B is fixed to the upper portion of the slicer server body 703A, and slides as the slide server body 703A slides. Here, the adsorption unit 703B and the like will be described with reference to FIG. 3 shows how the slice server 703 transports the blank BL to the blank transport mechanism 800. The adsorption portion 703B includes a flat plate 703BA, two protrusions 703BB, and a plurality of adsorption holes 703BC.

  The two protrusions 703BB protrude upward from both ends (directions orthogonal to the feed line FL) of the flat plate 703BA. In the state of FIG. 3, the protrusions 703BB are located on both sides in the width direction of the support plate 702B of the blank stacker 702 and extend in parallel with the support plate 702B (extend in the front-rear direction). The protrusion 703BB is thicker than the support plate 702B. Therefore, in the state of FIG. 3, the upper surface of the protrusion 703BB can be in contact with the blank BL, and the support plate 702B is not in contact with the flat plate 703BA or the like.

  Each protrusion 703BB is provided with a plurality of suction holes 703BC along the direction in which the protrusion 703BB extends. The suction hole 703BC forms an opening on the upper surface of the protrusion 703BB, and can suck air from this (blank BL is sucked). The suction hole 703BC passes through the protrusion 703BB and the flat plate 703BA, and is connected to the air passage 703C.

  Returning to FIG. 2, the air passage 703 </ b> C (broken in the middle in FIG. 2) has one end connected to an intake device (not shown) and the other end connected to the suction hole 703 BC of the suction portion 703 </ b> B. Therefore, when the intake device takes in air, the suction hole 703BC is in an intake state via the air passage 703C (the blank BL is sucked by the suction portion 703B). The intake device is a vacuum fan or the like.

  The connecting portion 703D is provided so as to hang downward from the slicer server body 703A. In FIG. 2, the connecting portion 703 </ b> D is located on the back side (left side) of the rotation support portion 704. One end of the first connecting member 707 is rotatably connected to the connecting portion 703D.

  The rotation support unit 704 supports the slice server 703 so as to be slidable. The rotation support part 704 is a member that moves closer to or away from the feed line FL of the blank BL. The rotation support portion 704 includes a support portion main body 704A and a guide rail 704B.

  The support body 704A is long in the front-rear direction. A base end portion (rear end portion) of the support portion main body 704 </ b> A is connected to the rotation shaft 705. Accordingly, the support portion main body 704A can rotate around the rotation shaft 705. Further, the tip end portion (front end portion) of the support portion main body 704A has a portion that hangs downward, and one end portion of the second connecting member 709 is rotatably connected thereto.

  The guide rail 704B is provided on the upper surface of the support body 704A and extends in the same direction as the support body 704A. A plurality of guide rails 704B may be provided. A slice server 703 is placed on the guide rail 704B, and the slice server 703 slides on the guide rail 704B.

  The first drive motor 706 is a drive source for sliding the slice server 703. The first drive motor 706 is located behind the connecting portion 703D of the slice server 703. The first drive motor 706 has a rotating shaft 706A (not shown in FIG. 2, see FIG. 7 and the like) and a plate-like member 706B attached to the rotating shaft 706A. The plate-like member 706B rotates integrally with the rotation shaft 706A. The in-plane direction of the plate-like member 706B is perpendicular to the rotation axis 706A. The other end of the first connecting member 707 is rotatably connected to the plate-like member 706B.

  The first connecting member 707 is a rod-like member, and is rotatably connected to the first drive motor 706 (plate member 706B) and the slicer server 703 (connecting portion 703D) as described above. The first connecting member 707 is located behind the connecting portion 703D of the slice server 703. The first connecting member 707 slides while rotating about one end (front end) of the first connecting member 707 as the plate-like member 706B rotates (rotation of the rotating shaft 706A), and the slice server 703 is moved. Slide. The first connecting member 707 does not rotate once, but rotates within a predetermined rotation angle range.

  The second drive motor 708 is a drive source for rotating the rotation support portion 704 around the rotation shaft 705. The first drive motor 706 is located below the front end portion (front end portion) of the rotation support portion 704. The second drive motor 708 has a rotating shaft 708A and a plate-like member 708B attached to the rotating shaft 708A. The in-plane direction of the plate-like member 708B is perpendicular to the rotation axis 708A. The other end of the second connecting member 709 is rotatably connected to the plate-like member 708B.

  The second connecting member 709 is a rod-like member, and is rotatably connected to the second drive motor 708 (plate member 708B) and the rotation support portion 704 (tip portion) as described above. The second connecting member 709 is located below the distal end portion of the rotation support portion 704. The second connecting member 709 slides while rotating about the one end (upper end) of the second connecting member 709 along with the rotation of the plate-like member 708B (rotation of the rotating shaft 708A). 704 (tip portion) is rotated about the rotation shaft 705 as an axis. The second connecting member 709 does not rotate once but rotates within a predetermined rotation angle range.

  Note that the first drive motor 706 and the second drive motor 708 are configured by a stepping motor or the like.

  As shown in FIGS. 4 and 5, the blank transport mechanism 800 includes a suction conveyor 801, a heater 802, a guide roller 805, a guide roller 806, an intake mechanism 808, and support plates 809 </ b> A to 809 </ b> C.

  The suction conveyor 801 is a device that conveys the blank BL supplied from the blank supply mechanism 700 while adsorbing it. The suction conveyor 801 includes a suction belt 801A, a driving roller 801B, a driven roller 801C, a driven roller 801D, and a tension roller 801E.

  Suction belt 801A conveys blank BL placed on its outer peripheral surface. The suction belt 801A is an endless belt, and is stretched by a driving roller 801B, a driven roller 801C, a driven roller 801D, and a tension roller 801E.

  The suction belt 801A includes a plurality of suction portions 801AA. One suction portion 801AA is a portion provided with a plurality of grooves 801AB that are long in the width direction of the suction belt 801A and arranged in the front-rear direction, and through-holes 801AC provided at the bottom of each of the plurality of grooves 801AB. is there. Through-hole 801AC penetrates suction belt 801A along its thickness direction. One suction portion 801AA sucks (sucks) one blank BL. As described later, the suction portion 801AA sucks the blank BL when the groove 801AB is brought into the suction state by suction through the through hole 801AC. The length of one suction portion 801AA in the front-rear direction (the length from the front end of the leading (frontmost position) through-hole 801AC to the rear end of the last through-hole 801AC) is shorter than the length in the front-rear direction of the blank BL. . Therefore, when the suction portion 801AA sucks the blank BL, it is possible to prevent the generation of the groove 801AB that is not used for sucking. The distance in the front-rear direction between the two suction portions 801AA (the distance between the rearmost groove 801AB in the front suction portion 801AA and the leading groove 801AB in the rear suction portion 801AA) is the distance between the grooves 801AB in one suction portion 801AA. It is wider than the interval and the length of one suction portion 801AA in the front-rear direction. Thereby, one adsorption | suction part 801AA can be arrange | positioned at a suitable space | interval, and one adsorption | suction part 801AA can adsorb | suck one blank BL with sufficient precision. The interval between the suction portions 801AA is an interval according to the conveyance interval of the blank BL to be conveyed (specifically, an interval that does not hinder the delivery of the blank BL by the kicker 901 described later).

  The drive roller 801B rotates by receiving drive from a drive source (not shown). With this rotational force, the suction belt 801A is rotated cyclically.

  The driven rollers 801C and 801D rotate according to the rotation of the suction belt 801A.

  The tension roller 801E is held so as to be movable in the front-rear direction of the suction belt 801A. The tension roller 801E biases the suction belt 801A and applies tension to the suction belt 801A. The tension roller 801E also rotates according to the rotating suction belt 801A.

  The heater 802 heats and melts the thermoplastic resin coated on the blank BL in a non-contact manner. Here, the heater 802 is an infrared heater. As shown in FIG. 5, the heater 802 is disposed on the left side of the suction belt 801A, and heats the left edge of the blank BL from above without contact. Thereby, the thermoplastic resin of the inner peripheral surface (inner peripheral surface when it is set as a cylinder) side of the left edge part of the blank BL is melted. This melted thermoplastic resin functions as an adhesive when forming a cylinder such as an outer sleeve by overlapping with the outer peripheral surface of the right edge of the blank BL (the outer peripheral surface when used as a cylinder).

  Each guide roller 805 is provided corresponding to the driven roller 801C, and guides the blank BL by sandwiching the blank BL between the guide roller 805 and the driven roller 801C.

  Each guide roller 806 is provided corresponding to the driven roller 801D, and guides the blank BL by sandwiching the blank BL between the guide roller 806 and the driven roller 801D.

  The intake mechanism 808 includes a vacuum fan and the like, and intakes air. The intake mechanism 808 has an intake hole on the upper surface. The upper surface provided with the intake holes is in contact with the inner peripheral surface of the suction belt 801A. Accordingly, the suction belt 801A rotates while being in contact with the upper surface provided with the intake holes (the inner peripheral surface of the suction belt 801A slides on the upper surface). By the intake of the intake mechanism 808, the through hole 801AC of the suction belt 801A is brought into a suction state. As a result, the blank BL is placed in a state of being sucked on the outer peripheral surface (suction portion 801AA) of the suction belt 801A. The adsorption area is increased by the groove 801AB around the through hole 801AC.

  The support plates 809A to 809C support the blank BL on the upper surface. The blank BL moves while sliding on the support plates 809A and 809B during conveyance by the suction belt 801A. The support plate 809C supports the blank BL after being conveyed by the suction belt 801A.

  As shown in FIG. 6, the blank carry-out mechanism 900 includes a kicker 901, a movable member 902, a third drive motor 903, a third connection member 904, a fourth drive motor 905, and a fourth connection member 906.

  The kicker 901 is a member that pushes the blank BL conveyed to the support plate 809C of the blank conveyance mechanism 800 to a predetermined position below the mandrel MD (a position where the blank BL is wound around the mandrel MD) and carries it out. The kicker 901 includes a pair of kicker main bodies 901A that are slidably supported by the movable member 902, and a pair of pushing portions 901B provided on the upper portions of the kicker main bodies 901A. The pair of kicker main bodies 901 </ b> A are provided on the left and right sides of the movable member 902. Further, the pair of extrusion portions 901B are disposed on both the left and right sides of the support plate 809C of the blank transport mechanism 800 (see FIG. 5). One kicker body 901A may be provided, and the one kicker body 901A may have a bar-like member extending in the left-right direction at the top, and a pair of extrusion portions 901B may be provided there. The blank BL is extruded by the pair of extrusion portions 901B. One end of a third connecting member 904 is rotatably connected to the lower portion of the kicker body 901A.

  The movable member 902 supports the kicker 901 so as to be slidable. Specifically, the movable member 902 includes a pair of guide grooves 902A that extend along the sliding direction of the kicker 901 on the left and right side surfaces. On the other hand, each of the pair of kicker bodies 901A includes protrusions (not shown) that enter the respective guide grooves 902A and engage with the respective guide grooves 902A. The protrusion extends along the sliding direction of the kicker 901. Such a protruding portion engages with the guide groove 902A and moves in the guide groove 902A, so that the kicker 901 slides on the movable member 902.

  The movable member 902 is supported so as to be movable in the vertical direction. For example, a guide groove or the like extending in the vertical direction is provided, and a convex portion or the like of the movable member 902 is engaged with the guide groove.

  The movable member 902 includes a connecting portion 902B that extends downward. One end portion of the fourth connecting member 906 is rotatably connected to the connecting portion 902B.

  The third drive motor 903 is a drive source for sliding the kicker 901. The third drive motor 903 is located behind the lower end of the kicker 901 (the lower end of the kicker body 901A). The third drive motor 903 has a rotating shaft 903A and a plate-like member 903B attached to the rotating shaft 903A. The plate-like member 903B rotates integrally with the rotation shaft 903A. The in-plane direction of the plate-like member 903B is perpendicular to the rotation shaft 903A. The other end of the third connecting member 904 is rotatably connected to the plate-like member 903B.

  The third connecting member 904 is a rod-like member, and is rotatably connected to the third drive motor 903 (plate member 903B) and the kicker 901 (the lower end portion of the kicker main body 901A) as described above. The third connecting member 904 is located behind the lower end portion of the kicker 901. The third connecting member 904 slides while rotating about one end (front end) of the third connecting member 904 as the plate-like member 904B rotates (rotation of the rotating shaft 904A), and the kicker 901 is moved. Slide. Note that the third connecting member 904 does not rotate once, but rotates within a predetermined rotation angle range.

  The fourth drive motor 905 is a drive source for moving the movable member 902. The fourth drive motor 905 is located below the movable member 902. The fourth drive motor 905 includes a rotation shaft 905A and a plate-like member 905B attached to the rotation shaft 905A. The in-plane direction of the plate-like member 905B is perpendicular to the rotation axis 905A. The other end of the fourth connecting member 906 is rotatably connected to the plate-like member 905B.

  The fourth connecting member 906 is a rod-like member, and is rotatably connected to the fourth drive motor 905 (plate member 905B) and the movable member 902 (connecting portion 902B) as described above. The fourth connecting member 906 is located below the distal end portion of the movable member 902. The fourth connecting member 906 slides while rotating around the one end (upper end) of the fourth connecting member 906 as the plate-like member 905B rotates (rotation of the rotating shaft 905A), and rotates. 704 (tip portion) is moved up and down. The fourth connecting member 906 does not rotate once, but rotates within a predetermined rotation angle range.

  Note that the third drive motor 903 and the fourth drive motor 905 are composed of stepping motors or the like.

  Next, the operation of the blank transport device 110 will be described.

  First, operation | movement of the blank supply mechanism 700 is demonstrated with reference to FIG. 2, FIG. 7 to 10, movement points P <b> 1 to P <b> 4 indicating the position of the slice server 703 (adsorption unit 703 </ b> B) (the position of a certain point) are attached.

  From the state of FIG. 7, the control unit 50 drives the second drive motor 708 to rotate the rotation shaft 708A and the plate-like member 708B clockwise toward FIG. The rotational force of the plate-like member 708B is converted by the second connecting member 709 into a force that pushes the tip end portion of the rotation support portion 704 upward. Thereby, the rotation support part 704 rotates counterclockwise around the rotation shaft 705 toward FIG. Due to the rotation of the rotation support portion 704, the slice server 703 on the rotation support portion 704 moves upward from the movement point P1 and moves to the movement point P2. The state after this movement is the state of FIG. In the state of FIG. 8, the sliding direction of the slice server 703 is parallel to the feed line FL.

  In the state of FIG. 8, the protruding portion 703BB of the suction portion 703B abuts on the blank BL at the lowest position among the blanks BL stacked in the blank stacker 702 (not shown in FIG. 8, etc.) (see also FIG. 3). ). In such a state, the control unit 50 controls the intake device to perform intake, and sets the suction hole 703BC of the suction unit 703B to the intake state. Therefore, the suction unit 703B sucks the blank BL.

  Thereafter, the control unit 50 drives the first drive motor 706 to rotate the rotation shaft 706A and the plate-like member 706B clockwise toward FIG. The rotational force of the plate-like member 706B is converted by the first connecting member 707 into a force that pushes the slice server 703 (connecting portion 703D) forward. Thereby, the slice server 703 is pushed forward (slides forward). For this reason, the slice server 703 moves from the moving point P2 to the moving point P3. The state after this movement is the state of FIG. As the slice server 703 moves, only one lowermost blank BL adsorbed by the adsorbing unit 703B is conveyed forward in a state of being placed on the adsorbing unit 703B.

  When the slicer 703 is slid and moved to the movement point P3, the control unit 50 controls the intake device to stop intake. As a result, the blank BL placed on the suction portion 703B is not sucked and can be easily separated from the suction portion 703B. The blank BL is transported by the blank transport mechanism 800. Specifically, when the suction part 703B is at the moving point P3, the blank BL is positioned in the vicinity of the suction belt 801A, and the blank BL is sucked and transported by the suction part 801AA provided on the suction belt 801A. In addition, you may make it provide separately the mechanism which pushes out blank BL when the slice server 703 is located in the movement point P3 to the suction belt 801A. The control unit 50 controls the intake device to stop the intake, and then waits for a predetermined period without operating the first drive motor 706 and the like. The predetermined period is a period until the blank BL starts to be carried on the suction belt 801A, and may be set in advance, for example.

  Thereafter, the control unit 50 drives the second drive motor 708 to rotate the rotation shaft 708A and the plate-like member 708B counterclockwise toward FIG. The rotational force of the plate-like member 708B is converted into a force that pulls the tip end portion of the rotation support portion 704 downward by the second connecting member 709. As a result, the rotation support portion 704 rotates clockwise about the rotation shaft 705 toward FIG. Due to the rotation of the rotation support portion 704, the slice server 703 on the rotation support portion 704 moves downward from the movement point P3 and moves to the movement point P4. The state after this movement is the state of FIG.

  Thereafter, the control unit 50 rotates the rotation shaft 706A and the plate-like member 706B counterclockwise toward FIG. The rotational force of the plate-like member 706B is converted by the first connecting member 707 into a force that pulls the slice server 703 (connecting portion 703D) backward. Accordingly, the slice server 703 slides backward on the guide rail 704B of the rotation support portion 704. For this reason, the slice server 703 moves to the movement point P1. That is, the blank supply mechanism 700 returns to the state of FIG.

  By the operation as described above, the slice server 703 (adsorption unit 703B) circulates and moves the movement points P1 to P4, and adsorbs and transports the blank BL therebetween. Accordingly, the blanks BL stacked and accommodated in the blank stacker 702 are supplied to the blank transport mechanism 800 one by one from the bottom. Note that the movement of the slice server 703 (suction unit 703B) is a box motion.

  Next, the operation of the blank transport mechanism 800 will be described with reference to FIGS. The blank BL is placed on the suction belt 801A in an adsorbed state and is conveyed from left to right as viewed in FIG. At this time, the heater 802 heats the left edge of the blank BL from above without contact. Thereby, the thermoplastic resin of the inner peripheral surface side of the left edge part of blank BL is fuse | melted. The melted thermoplastic resin functions as an adhesive when molding a cylinder such as a paper cup body or an outer sleeve with the mandrel MD. The blank BL conveyed by the suction belt 801A is finally placed on the support plate 809C.

  Next, operation | movement of the blank carrying-out mechanism 900 is demonstrated with reference to FIG. 6, FIG. In addition, in FIGS. 11-14, the movement points P5-P8 which show the position (position of a certain point) of the kicker 901 (extrusion part 901B) are attached | subjected.

  From the state of FIG. 11, the control unit 50 drives the fourth drive motor 905 to rotate the rotating shaft 905A and the plate-like member 905B counterclockwise toward FIG. The rotational force of the plate-like member 905 </ b> B is converted into a force that pushes the movable member 902 upward by the fourth connecting member 906. Thereby, the movable member 902 is pushed upward. Thereby, the kicker 901 attached to the movable member 902 moves upward from the movement point P5 and moves to the movement point P6. The state after this movement is the state of FIG. At this time, the pushing portion 901B of the kicker 901 is located behind the blank BL mounted on the support plate 809C (see FIG. 6, not shown in FIG. 11, etc.).

  Thereafter, the control unit 50 drives the third drive motor 903 to rotate the rotating shaft 903A and the plate-like member 903B in the clockwise direction toward FIG. The rotational force of the plate-like member 903B is converted into a force that pushes the kicker 901 forward by the third connecting member 904. Thereby, the kicker 901 is pushed forward (slides forward), and moves from the moving point P6 to the moving point P7. The state after this movement is the state of FIG. By the movement of the kicker 901, the extrusion unit 901B pushes the blank BL placed on the support plate 809C forward and pushes it out to a predetermined position below the mandrel MD (position where the blank BL is wound around the mandrel MD). Move. In this way, the blank BL is conveyed by extrusion by the extrusion unit 901B.

  Thereafter, the control unit 50 drives the fourth drive motor 905 to rotate the rotation shaft 905A and the plate-like member 905B clockwise toward FIG. The rotational force of the plate-like member 905B is converted into a force that pulls the movable member 902 downward by the fourth connecting member 906. As a result, the movable member 902 moves downward. Thereby, the kicker 901 attached to the movable member 902 moves downward from the moving point P7 and moves to the moving point P8. The state after this movement is the state of FIG. At this time, the pushing portion 901B of the kicker 901 is positioned below the support plate 809C (see FIG. 6, not shown in FIG. 14, etc.).

  Thereafter, the control unit 50 drives the third drive motor 903 to rotate the rotation shaft 903A and the plate-like member 903B counterclockwise toward FIG. The rotational force of the plate-like member 903B is converted into a force that pulls the kicker 901 backward by the third connecting member 904. As a result, the kicker 901 is pulled backward (slids backward) and moves from the moving point P8 to the moving point P5. That is, the blank carry-out mechanism 900 returns to the state shown in FIG. During the movement from the movement point P8 to the movement point P5, the pushing portion 901B of the kicker 901 is positioned below the support plate 809C (see FIG. 6, not shown in FIG. 14 and the like). Even if there is a blank BL, the extruded portion 901B will not hit the blank BL.

  By the operation as described above, the kicker 901 (extruding unit 901B) circulates and moves the movement points P5 to P8, and pushes out and transports the blank BL therebetween. Thereby, the blank BL is carried out to the processing apparatus KS. Note that the movement of the kicker 901 (the extrusion unit 901B) is a box motion.

  The effects obtained by this embodiment will be described below.

  As in Patent Document 1, when the lowest blank BL among the blanks BL stacked on the blank stacker 702 is pulled down by a rotatable suction pad, a plurality of blanks BL may be pulled down at a time. Therefore, conventionally, a configuration has been generally adopted in which the slice server 703 reciprocates between the moving point P2 and the moving point P3 to transport the blanks BL one by one from the blank stacker. In this case, the slice server 703 moves. When returning from the point P3 to the moving point P2, the slice server 703 may rub the blank BL and scratch the blank BL. In the blank supply mechanism 700 of this embodiment, the slice server 703 moves in parallel with the feed line FL by the box motion and moves the blank BL when moving from the moving point P3 to the moving point P2. Via points P4 and P1. That is, the slice server 703 moves downward and moves away from the blank BL when moving backward. For this reason, the slice server 703 is prevented from rubbing the lower surface of the blank BL, and the blank BL is hardly scratched.

  Further, as in Patent Document 1, when transporting the blank BL between a pair of upper and lower feed belts, if the adjustment of the pressing force of the upper feed belt is not adjusted well, It happens that the position shifts. In addition, when the blank BL is sandwiched between a pair of upper and lower feed belts, dirt on the feed belt may be transferred to the blank BL. In the blank transport mechanism 800 of this embodiment, the suction belt 801A is provided with a suction portion 801AA, and the suction belt 801A carries and transports the blank BL while being sucked. For this reason, misalignment of the blank BL hardly occurs during conveyance. Further, it is not necessary to sandwich the blank BL between the upper and lower belts, and dirt is not easily transferred to the blank BL.

  Note that the total area of the plurality of grooves 801AB (including the area of the through hole 801AC) in the suction portion 801AA may be 3% or more of the area of the blank BL. The blank BL can be adsorbed more appropriately. The shape of the groove 801AB is preferably long in the width direction of the suction belt 801A. With this shape, the warp in the width direction of the blank BL can be effectively suppressed.

  The length of the groove 801AB in the flow direction (the front-rear direction in FIG. 5) is preferably 5 to 10 mm in consideration of the strength (thickness) of a general blank BL used for a paper container such as a paper cup. . If it is smaller than 5 mm, the suction force is weak, and the blank BL is likely to be displaced during conveyance. If it is larger than 10 mm, the suction force is too strong and the blank BL is likely to be warped. This is to prevent it.

  In addition, as in Patent Document 1, when the blank BL is transported by the circular motion of the pushing claw (kicker), the position where the pushing claw hits the blank BL may not be stable due to the circular motion of the pushing claw. In particular, the position of the blank BL in the traveling direction may be shifted after being conveyed by the belt, and the position at which the pushing claw hits the blank BL may not be stable. If the position where the pushing claw hits the blank BL is not stable, the blank BL is likely to be displaced, and when the blank BL is wound around the mandrel, the tension of the cylinder will vary. In addition, due to the arc movement, the pushing claw rubs the blank BL, and problems such as wear of the pushing claw and generation of paper dust are likely to occur. The paper dust may be burnt and soiled by heating in a later process, and the generation of paper dust is not preferable. In the blank carry-out mechanism 900 of this embodiment, the kicker 901 slides along the feed line FL by the box motion and pushes the rear end of the blank BL, so that the kicker 901 (extrusion part 901B) hits the blank BL. Can be stabilized, and paper dust can be made difficult to occur. In addition, wear of the kicker 901 (extruded portion 901B) can be reduced.

  In this embodiment, the movement of the slice server 703 and the kicker 901 is a box motion. In manufacturing a paper cup, since a large amount of paper cups are produced at a time, it is preferable to manufacture one paper cup in a short time. In view of the above, it is desirable that the slice server 703 and the kicker 901 perform a simple reciprocating motion as in the related art. However, the inventor of the present application has found that the conventional reciprocating motion causes the above-described problems, and the motion of the slice server 703 and the kicker 901 is made to be a box motion that takes more time than the reciprocating motion as in the above-described embodiment. By doing so, it is difficult to cause problems.

  The slice server 703 only needs to be able to move downward from the moving point P3 and move away from the blank BL when returning to the moving points P1 and P2, and the control unit 50 controls the first drive motor 706 and the second drive motor 708 simultaneously. Then, the slice server 703 may be moved directly from the moving point P3 to the moving point P1 (see FIG. 15). Alternatively, the slice server 703 may be moved rearward and obliquely downward from the moving point P3 and then moved backward to return to the moving point P1. Alternatively, the slice server 703 may be moved backward and obliquely downward from the movement point P3, and then moved backward and obliquely upward (moved in a V shape) to return to the movement point P2. Also by these, the same effect as described above can be obtained. In addition, as described above, the movement time of the slice server 703 can be shortened by moving the slice server 703 backward or upward while moving the slice server 703 backward.

  The kicker 901 only needs to be able to slide along the feed line FL (the direction of travel of the blank BL) when moving from the movement point P6 to the movement point P7, that is, when pushing out the blank BL. The kicker 901 may be moved directly from the moving point P7 to the moving point P5 by simultaneously controlling the third driving motor 903 and the fourth driving motor 905 (see FIG. 16). Alternatively, the kicker 901 may be moved rearward and obliquely downward from the moving point P7 and then moved backward to return to the moving point P5. Alternatively, the kicker 901 may be moved rearward and obliquely downward from the movement point P7 and then moved backward and obliquely upward (moved in a V shape) to return to the movement point P6. Also by these, the same effect as described above can be obtained. Moreover, the movement time of the kicker 901 can be shortened by moving the kicker 901 backward or upward while moving the kicker 901 backward. In addition, it is preferable that the downward movement of the kicker 901 is finished early so that the kicker 901 does not hit the blank BL to be conveyed next.

  In this embodiment, the rotation support portion 704 is rotated around a rotation shaft 705 located behind the slice server 703, and the slice server 703 is moved in the vertical direction. Although the slice server 703 is generally heavy, the slice server 703 can be moved up and down relatively easily by this configuration.

  In this embodiment, an infrared heater is used when heating the blank BL. Conventionally, heating is often performed with a direct fire, but in this case, when the conveyance of the blank BL is stopped for some reason, the blank BL may be burnt or burnt. It was. If the conveyance mechanism is turned off when the conveyance of the blank BL is stopped, heating by the infrared heater is stopped, so that the blank BL can be prevented from being burned or burnt. As described above, the heating of the blank BL may be performed by a heater (not limited to an infrared heater) operated by a power source. The heater is preferably heated in a non-contact manner.

  The present invention is not limited to the above embodiment. You may change the said embodiment suitably. Moreover, you may abbreviate | omit the structure of the said embodiment.

  Any one of the blank supply mechanism 700, the blank transport mechanism 800, and the blank carry-out mechanism 900 may be omitted or may be a conventional mechanism. Even in such a case, at least one of various problems can be hardly caused by any of the blank supply mechanism 700, the blank transport mechanism 800, and the blank carry-out mechanism 900. The blank supply mechanism 700, the blank transport mechanism 800, and the blank carry-out mechanism 900 are all prepared, so that it is possible to make it difficult for all the troubles that can be considered in the transport of the blank to occur, and the blank supply mechanism 700, the blank transport mechanism 800, the blank It is desirable that the carry-out mechanism 900 employs all of them.

  In the above-described embodiment, the slice server 703 may not suck the blank BL. In this case, a hooking claw may be provided at the rear end of the portion of the slice server 703 that contacts the blank BL, and the blank BL may be hooked and conveyed.

  In addition, you may provide the member which presses down blank BL in order to prevent generation | occurrence | production of the curvature and twist of the blank BL, or to correct the said curvature and twist. In addition, a predetermined device may be interposed between the blank supply mechanism 700, the blank transport mechanism 800, and the blank carry-out mechanism 900.

  The mechanism for moving the slice server 703 or the kicker 901 is not limited to the above embodiment, and various configurations can be adopted. As in the above-described embodiment, the mechanism converts the motor and the rotational force generated by the motor into a force that moves the slicer server 703 or the kicker 901 up and down, an arc, or a force that slides back and forth. By using a conversion member and a mechanism (crank mechanism), the slice server 703 or the kicker 901 can be moved with a simple configuration. In particular, the conversion member is a rod-like or plate-like member that is rotatably coupled to both the rotating portion of the motor (such as a rotating shaft or a member fixed to the rotating shaft) and the slicer 703 or the kicker 901. Good.

  The blank BL may be a paper cup that contains an ice cream or the like in addition to a paper cup that contains a beverage.

  Configurations taking at least a part of the embodiment and the modified examples as examples will be listed below. The present invention is not limited to the following description.

(1) A blank transport device for transporting a blank (for example, a blank BL) constituting a paper container,
A transport unit (for example, a slicer) that transports the blank by placing the blank and moving the first blank (for example, the moving point P2) to a second position (for example, the moving point P3) ahead of the first position. Bar 703),
A first moving mechanism (for example, a rotation support unit 704, a first drive motor 706, a first drive mechanism 706, and the like) is moved back from the first position to the second position and then returned to the first position. 1 connecting member 707, second drive motor 708, second connecting member 709),
A transport mechanism (for example, a blank transport mechanism 800) that includes a transport belt (for example, a suction belt 801A) on which a blank transported by the transport unit is placed and transports the blank on the transport belt;
By moving from the third position (for example, movement point P6) to the fourth position (for example, movement point P7), the rear end of the blank conveyed by the conveyance mechanism is pushed to move the blank forward (for example, mandrel MD). Extruding part (for example, kicker 901 or extruding part 901B) to be extruded to a predetermined position below
A second movement mechanism (for example, a movable member 902, a third drive motor 903, a third connection member 904, a fourth drive motor 905, and a fourth connection member) that moves the pushing portion from the third position to the fourth position. 906), and
The first movement mechanism moves the conveyance unit backward to move the conveyance unit downward to move the conveyance unit downward from the blank (for example, box motion, Orbit of FIG. 15),
The transport mechanism transports the blank on the transport belt without sandwiching the blank from above and below (for example, FIG. 4),
The conveyance belt conveys the blank while adsorbing the blank (for example, adsorption by the adsorption unit 801A),
The second moving mechanism moves the pusher along the traveling direction of the blank when moving the pusher from the third position to the fourth position (for example, a box motion or a trajectory in FIG. 16). ),
Blank transport device.

  According to the said structure, generation | occurrence | production of the malfunction during conveyance can be decreased. In addition, among the said structure, any one or two of a conveyance part and a 1st movement mechanism, a conveyance mechanism, an extrusion part, and a 1st movement mechanism may be abbreviate | omitted.

(2) The first moving mechanism includes a support portion (for example, a rotation support portion 704) that slidably supports the transport portion from the first position to the second position,
The support unit moves around the rotation shaft (for example, the rotation shaft 705) located behind the first position, thereby moving the transport unit downward (for example, FIGS. 9 and 10).
The blank conveyance apparatus as described in said (1).

  According to the said structure, even if a conveyance part is heavy, a conveyance part can be moved below with comparatively weak force.

(3) The first moving mechanism moves the transport unit downward while moving the transport unit backward (for example, FIG. 15).
The blank conveyance apparatus as described in said (1) or (2).

  According to the above configuration, it is possible to shorten the time required to move the transport unit.

(4) The second moving mechanism moves the pushing portion downward while moving the pushing portion from the third position to the fourth position, and then returns to the third position (for example, FIG. 16),
The blank conveyance apparatus in any one of said (1)-(3).

  According to the above configuration, it is possible to shorten the time required to move the transport unit.

An infrared heater that heats a part of the blank in a non-contact manner while the blank is being transported on the conveyor belt;
The blank conveyance apparatus in any one of said (1)-(4).

  According to the said structure, when conveyance of a blank stops, it can prevent that a blank will burn.

110: Blank transport device BL: Blank 700: Blank supply mechanism 702: Blank stacker 703: Slice server 703B: Suction unit 704: Rotating support unit 705: Rotating shaft 706: First drive motor 707: First connecting member 708: Second Drive motor 709: second connecting member 800: blank transport mechanism 801: suction conveyor 801A: suction belt 801AA: suction unit 802: heater 900: blank carry-out mechanism 901: kicker 901B: push-out unit 902: movable member 903: third drive motor 904: third connecting member 905: fourth drive motor 906: fourth connecting members P1 to P8: moving point

Claims (7)

A blank conveying device that conveys a blank that forms a cylindrical body constituting a paper container by forming a thermoplastic resin layer on at least the surface and bonding the front surface of one end and the back surface of the other end with the thermoplastic resin layer. There,
A transport unit that transports the blank by placing the blank and moving from the first position to a second position ahead of the first position;
A first moving mechanism that moves the transport unit from the first position to the second position and then moves it backward to return to the first position;
A conveying belt which the blank is transported by the transport unit rests, a transport mechanism for transporting put the blank to said conveyor belt,
A heater for heating the blank being carried on the carrying belt;
By moving from the third position to the fourth position, an extruding unit that pushes the blank forward by pushing the rear end of the blank conveyed by the conveyance mechanism;
A second moving mechanism that moves the pusher from the third position to the fourth position;
The first moving mechanism includes:
A support unit that supports the transport unit in a reciprocating manner by linear movement;
When the transport unit is moved from the first position to the second position, the transport unit is linearly moved in the forward direction on the support unit;
When returning the transport unit prior Symbol first position, said supporting portion is moved to the transport section downward by moving downward by separating the transport unit from the blank, the transport unit which is separated Move linearly in the return direction opposite to the forward direction on the support,
The transport mechanism transports the blank on the transport belt without being sandwiched by the belt from above and below,
The conveyor belt is
Comprising a suction part for sucking the blank;
Adsorption goods to send al transportable said blank by said suction unit,
The length of the suction portion in the width direction of the transport belt is shorter than the length in the width direction of the blank transported by the transport belt,
The heater heats the thermoplastic resin layer by heating the one end portion of the blank, and the heated thermoplastic resin layer is divided into a surface of the one end portion and a back surface of the other end portion of the blank. It is an electric heater that functions as an adhesive to be bonded,
The second moving mechanism linearly moves the pushing portion along the traveling direction of the blank when moving the pushing portion from the third position to the fourth position.
Blank transport device. Before Symbol support portion, by rotating around a rotation axis located behind the first position, it moves the conveyance unit downward,
The blank conveyance apparatus of Claim 1. The first moving mechanism moves the transport unit downward while moving the transport unit backward.
The blank conveyance apparatus of Claim 1 or 2. The second moving mechanism moves the pushing portion downward while moving backward from the third position to the fourth position, and then returns to the third position.
The blank conveyance apparatus of any one of Claims 1-3. A blank transport device for transporting a blank constituting a paper container,
A conveying unit that conveys the blank by moving forward of the forward position than the rear position from the rear position by placing the blank,
Said transport unit, and a turning mechanism moves to return to the rear position by moving backwards after having moved to the forward position from the rear position,
Before KiUtsuri dynamic mechanism,
A support unit that supports the transport unit in a reciprocating manner by linear movement;
When the transport unit is moved from the rear position to the front position, the transport unit is linearly moved in the outward direction on the support unit;
When returning the transport unit before Symbol rear position, the said transport unit supporting portion by moving downward is moved downward by separating the transport unit from the blank, the said transport unit which is separated Linear movement in the return direction opposite to the forward direction on the support,
Blank transport device. A blank transport device that transports a blank that forms a cylindrical body constituting a paper container by forming a thermoplastic resin layer on at least the surface and bonding the front surface of one end and the back surface of the other end with the thermoplastic resin layer. There,
A conveying belt which the blank rests, a transport mechanism for transporting put the blank to said conveyor belt,
A heater for heating the blank being carried on the carrying belt ,
The transport mechanism transports the blank on the transport belt without sandwiching the blank from above and below,
The conveyor belt is
Comprising an adsorbing part for adsorbing the blank;
Adsorption goods to send al transportable said blank by said suction unit,
The length of the suction portion in the width direction of the transport belt is shorter than the length in the width direction of the blank transported by the transport belt,
The heater heats the thermoplastic resin layer by heating the one end portion of the blank, and the heated thermoplastic resin layer is bonded to the surface of the one end portion and the back surface of the other end portion of the blank. It is an electric heater that functions as an adhesive to be bonded.
Blank transport device. A blank transport device for transporting a blank constituting a paper container,
By moving from the rear position to the front position, an extruding part that pushes the blank forward by pushing the rear end of the blank; and
The extrusion, and a moving mechanism Before moving to the forward position from the rear position,
Before KiUtsuri dynamic mechanism,
A support portion for supporting the extrusion portion so as to be reciprocally movable by linear movement;
After moving the pushing portion upward by moving the support portion upward, the pushing portion is moved linearly in the forward direction on the supporting portion, so that the pushing portion is moved from the rear position to the front position. In a straight line along the direction of travel of the blank ,
When the pushing portion is returned to the rear position, the pushing portion is moved downward by moving the supporting portion downward, and the pushing portion is moved backward on the supporting portion opposite to the forward direction. Move straight in the direction,
Blank transport device.