JP2014227178A - Chuter for bag-in box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chuter for a bag-in box which can stably be transported also in the case of transporting an inner bag by being clamped with upper and lower transport devices and can receive the inner bag into an exterior box with a desired attitude.SOLUTION: A chuter for a bag-in box 1, which receives a flexible inner bag filled with a content upon its cast from the upper opening into an exterior box 3, comprises an exterior box transport device 30 that transports the exterior box 3 to a cast position where the inner bag 4 is cast and an inner bag transport device 10, which is an inner bag transport device 10 equipped with an upper side belt conveyor 11 and a lower side belt conveyor 13 that transport the inner bag 4 by being clamped from above and below to transport the inner bag toward the exterior box 3 located at the cast position and makes the upper side belt conveyor 11 have the first belt conveyor and the second belt conveyor arranged in parallel with a predetermined interval.

Description

  The present invention relates to a bag-in-box charging device for storing an inner bag of a bag-in-box in an outer box.

  The bag-in-box, in which a plastic inner bag (flexible bag) filled with fluids is stored in an outer cardboard box, can be easily separated and recycled after use. Widely used.

  In addition, a charging device for a bag-in-box for automatically storing a flexible inner bag filled with a fluid is automatically provided in an exterior box. A conventional charging device is configured to convey an inner bag by a belt conveyor and drop and store the inner bag in its exterior box by its own weight, and is disclosed in, for example, Patent Documents 1 to 3 below.

  Here, a cap for filling and taking out the fluid is formed on the inner bag, and an opening for the cap for accessing the cap from the outside is formed on the outer box. Therefore, when putting the inner bag into the outer box, it is necessary to put the inner bag in a desired posture so that the cap is located at a desired place (position of the cap opening or the like) in the outer box. is there. The throwing device according to Patent Document 3 is configured to put the inner bag immediately before being put into the outer box between the upper and lower belt conveyors and transport the inner bag into a desired posture. ing.

JP-A-6-135406 JP 2002-361661 A JP 2012-86882 A

  In order to achieve a desired posture at the time of loading while stably transporting the inner bag to the outer box, it is effective to sandwich and transport the inner bag between the upper and lower transport devices. However, if the upper and lower belt conveyors convey the inner bag, the cap protruding from the inner bag collides with either the upper or lower belt conveyor, and the posture of the inner bag is disturbed and the desired posture can be maintained. The problem that it disappears or a pinhole is formed in an inner bag by a cap will arise.

  If it is not possible to put the container into the outer box in a desired posture, the cap of the inner bag is positioned away from the desired position, and the cap is moved to the desired position when taking out the contents of the inner bag. It is necessary to move the inner bag so that it comes. In particular, when the bag-in-box has a shape close to a cube, the inner bag is likely to rotate when dropped into the outer box, so that it is difficult to store the inner bag in a desired posture.

  The present invention has been made in view of such problems, and can be stably transported even when the inner bag is sandwiched and transported by upper and lower transport devices, and the inner bag can be put into the outer box in a desired posture. It is an object of the present invention to provide a bag-in-box charging device that can be stored.

  In order to solve the above-described problems, a bag-in-box charging device according to the present invention is a bag-in-box charging device that loads and stores a flexible inner bag filled with contents into an exterior box from an upper opening. An outer box transporting device that transports the outer box to a loading position where the inner bag is charged, and an upper belt conveyor and a lower belt conveyor that transport the inner bag while sandwiching the inner bag from above and below. An inner bag transport device for transporting the inner bag toward a box, wherein the upper belt conveyor includes a first belt conveyor and a second bell conveyor installed in parallel at a predetermined interval; It is characterized by providing.

  According to the bag-in-box charging device according to the present invention, the inner bag can be stably conveyed and stored in a desired posture in the outer box.

FIG. 1 is a side view of a dosing device according to an embodiment of the present invention. FIG. 2 is a diagram showing the configuration of the bag-in-box according to the embodiment of the present invention. FIG. 3 is a partially enlarged plan view of the dosing device according to the embodiment of the present invention. FIG. 4 is a side view of the dosing device according to the embodiment of the present invention. FIG. 5 is a side view of the dosing device according to the embodiment of the present invention.

  Hereinafter, a bag-in-box input device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the charging device according to the present embodiment. 2A and 2B are diagrams showing the configuration of the bag-in-box according to the present embodiment. FIG. 2A is a front view and FIG. 2B is a plan view.

  FIG. 3 is a partially enlarged plan view showing, in an enlarged manner, a portion of the inner bag transfer device of the charging device according to the present embodiment. FIG. 4 is a side view of the charging device according to the present embodiment, and shows a state where the exterior cardboard box is in the charging position. FIG. 5 is a side view of the charging device according to the present embodiment, showing that the outer cardboard box is in the loading position and the inner bag is being loaded in an inclined state.

  The charging device 1 according to the present embodiment loads an inner bag (flexible bag) 4 filled with contents into an empty outer cardboard box 3, and as shown in FIG. The operation of storing the inner bag 4 in the outer cardboard box 3 is performed in the positioned posture.

  As shown in the figure, the exterior cardboard box 3 of the bag-in-box 2 according to the present embodiment has a rectangular parallelepiped shape having a substantially square opening on the upper surface, and has a short length in the vertical direction. Compared to the case of a narrow outer box, the inner bag 4 is easy to rotate when the inner bag 4 is inserted, and it is difficult to store the inner bag 4 in the outer cardboard box 3 in a desired posture with the conventional charging device. .

  As shown in FIG. 1, the charging device 1 includes a housing 6, an inner bag transport device 10, an inner bag guide device 20, and an outer box transport device 30. The housing 6 has a frame structure, and supports each member constituting the input device 1 at a predetermined position. In FIG. 1, the housing 6 is indicated by a broken line.

  The inner bag conveyance device 10 is a device that conveys the flexible inner bag 4 filled with a fluid to the outer cardboard box 3 in a state where the cap 4A is laid so that the cap 4A is positioned at the upper center. The inner bag conveying device 10 includes an upper conveying device 11 positioned above the inner bag conveying path 60 that is a path through which the inner bag 4 is conveyed, and a lower conveying device 13 positioned below the inner bag conveying path 60. And a proximity sensor 15 that detects that the inner bag 4 has approached the loading position, and conveys the inner bag 4 between the upper conveying device 11 and the lower conveying device 13.

  The inner bag conveyance path 60 is a low-level inclined path on the downstream side, which is the loading position side, and the inclination angle in this embodiment is 20 °. Therefore, the upper transfer device 11 and the lower transfer device 13 are also inclined by 20 °.

  The upper transport device 11 and the lower transport device 13 are belt conveyors. The upper transport device 11 includes a first belt conveyor 11A and a second belt conveyor 11B that are installed in parallel at a predetermined interval.

  The belt conveyors 11A and 11B include endless belts 111A and 111B that are circulated by a plurality of rollers 112A and 112B, respectively, and a common drive motor 115 that generates a driving force for circulating the endless belts 111A and 111B. I have.

  The lower conveyance device 13 includes an endless belt 131 that is circulated by a plurality of rollers 132 and a drive motor 135 that generates a driving force for circulating the endless belt 131. The proximity sensor 15 is fixedly installed on the second belt conveyor 11B at a predetermined distance upstream from the downstream end of the inner bag conveyance path 60, and optically detects the approach of the inner bag 4 with a laser beam.

  The width of the belt conveyors 11A and 11B is about one third of the width of the belt conveyor of the lower transport device 13, and the first belt conveyor 11A and the second belt conveyor 11B are spaced apart by the same width as the width. Are installed in parallel. In other words, the upper transport device 11 and the lower transport device 13 are installed facing each other up and down with substantially the same width, but a belt conveyor is installed in the central portion of the upper transport device 11 having a width of about one third. It is a blank part that is not done.

  When the inner bag 4 is transported, the cap 4A is positioned upward and the blank portion where the belt conveyor does not exist is allowed to pass, so that the inner bag 4 can be stabilized in a desired posture without contacting the cap 4A with the belt conveyor. Can be transported.

  In the present embodiment, the transport speeds of the upper transport device 11 and the lower transport device 13 are configured to be independently changeable. Therefore, the inner bag 4 is put into the outer cardboard box 3 according to the size and shape of the inner bag 4 and the outer cardboard box 3, the position of the cap 4A of the inner bag 4, the position of the cap opening of the outer cardboard box 3, etc. Good accommodation can be realized by appropriately adjusting the upper and lower transport speeds so that the desired posture is the desired posture.

  In the present embodiment, when the proximity sensor 15 detects that the inner bag 4 has approached the loading position, that is, the inner bag 4 has been transported to the position of the proximity sensor 15, the inner bag transport device 10 Control is performed so that the transport speed of the upper transport device 11 is slow (for example, about 10%).

  Thereby, the inner bag 4 is slightly rotated clockwise in FIG. 1 so that the bottom surface side opposite to the cap 4A enters the outer cardboard box 3 first, and the outer bag 4 is in a desired posture in which the cap 4A is positioned upward. It is inserted stably so as to be stored in the cardboard box 3.

  Of course, the relative adjustment of the conveyance speed between the upper conveyance device 11 and the lower conveyance device 13 may be slowed down, and a desired adjustment of the inner bag 4 when it is discharged from the inner bag conveyance device 10. What is necessary is just to adjust suitably according to an attitude | position.

  The upper transport device 11 is configured to be movable in a direction perpendicular to the inner bag transport path 60. By moving the upper transport device 11, the distance between the upper transport device 11 and the lower transport device 13 is increased. The inner bag 4 is variable and can be stably conveyed in various shapes and sizes.

  When the inner bag 4 carried by the inner bag conveying device 10 falls from its downstream end due to its own weight and is put into the outer cardboard box 3, the inner bag guide device 20 is smoothly stabilized. It is a member that guides it so as to be housed in the exterior cardboard box 3.

  The inner bag guide device 20 includes a lower guide device 25 located on the lower side of the inner bag conveyance device 10 and a shooter 29 that is installed on both sides of the inner bag conveyance path 60 and narrows the lateral width of the inner bag 4. I have.

  The lower guide device 25 is interposed between the inner bag 4 and the outer cardboard box 3 to guide the inner bag 4 so that the inner bag 4 is housed in the outer cardboard box 3 in a stable posture. 4 and the inner surface of the outer corrugated cardboard box 3 are reduced, and function of pinholes due to contact friction between the two is greatly reduced.

  The lower guide device 25 protrudes to the lower surface side of the inner bag 4 when the inner bag 4 is inserted, and supports the lower inner bag 4 to be guided, and the lower guide board 26 is retracted from the guide position. And a lower board advance / retreat member 27 that moves forward and backward between the positions.

  The lower guide board 26 is a rectangular hard plate made of polytetrafluoroethylene (Teflon (registered trademark)) having a small friction coefficient. The width of the lower guide board 26 is substantially the same as the width of the endless belt 131 of the lower transport device 13.

  The lower board advancing / retracting member 27 includes a slide mechanism 271, a guide position that protrudes into the loading / falling path of the inner bag 4, and a retreat position that is a position retracted from the guide position in the upstream direction of the inner bag conveyance path 60. The lower guide board 26 is slid in between.

  This sliding movement is performed substantially in parallel with the inner bag conveyance path 60 on the lower side of the lower conveyance device 13. When the lower guide board 26 is in the guide position, as shown in FIG. 4 and the like, the lower guide board 26 protrudes downstream on the lower side of the inner bag conveyance path 60.

  At this time, the tip of the lower guide board 26 has reached the vicinity of the bottom surface of the outer cardboard box 3 at the loading position. On the other hand, when the lower guide board 26 is in the retracted position, as shown in FIG. 1, the tip of the lower guide board 26 is retracted from the loading / falling path of the inner bag 4 and is positioned below the lower transport device 13. Yes.

  The shooter 29 is a guide member that regulates the lateral width of the inner bag 4 that is transported through the inner bag transport path 60, and includes side walls that stand on both sides of the inner bag transport path 60. In FIGS. 1, 4 and 5, the shooter 29 is indicated by a broken line. The shooter 29 is regulated so that the lateral width becomes narrower as the inner bag 4 approaches the loading position, and when viewed from above, the reverse letter C is so that the distance between the side walls of the shooter 29 becomes narrower as it approaches the loading position. It has a shape (see FIG. 3).

  The distance between the side walls at the downstream end of the shooter 29 is slightly narrower than the opening width of the outer cardboard box 3. The width of the inner bag 4 is once reduced by the shooter 29 and then thrown into the inner bag 4. Can be stored in the exterior cardboard box 3.

  The outer box transporting device 30 is a device for transporting the outer cardboard box 3 to the loading position of the inner bag 4. In FIG. 1, the outer carton box 3 is sequentially moved in a direction perpendicular to the paper surface, that is, from the near side to the far side. Transport.

  The outer box conveyance device 30 includes a plurality of lower surface conveyance rollers 31 that contact the lower surface of the outer cardboard box 3, a drive motor that rotates the lower surface conveyance roller 31, and a plurality of side surface conveyance rollers that abuts the side surface of the outer cardboard box 3. 33, a drive motor that rotationally drives the side conveyance roller 33, a protruding member 35, and an inclined member 36.

  A large number of lower surface transport rollers 31 are installed along the outer box transport path, and a number of side surface transport rollers 33 are also installed along the outer box transport path. In the present embodiment, the outer cardboard box 3 is not in a state in which the opening is directly above and the outer corrugated cardboard box 3 is set up vertically, but in an inclined state in which it is laid down by 40 ° from the vertical state to the inner bag transfer device 10 side (right side in FIG. The box 3 is being conveyed.

  For this reason, the lower surface conveyance roller 31 is also installed in a state inclined by 40 ° from the horizontal state, and the side surface conveyance roller 33 is also installed in a state inclined by 40 ° from the vertical state. In this way, by laying the outer cardboard box 3 by 40 °, it is possible to suppress an impact at the time of contact between the outer cardboard box 3 and the inner bag 4.

  The protrusion member 35 is a member that pushes the exterior cardboard box 3 in a state in which the lower surface thereof is in contact with the lower surface conveyance roller 31 obliquely upward along the side surface conveyance roller 33 so as to be positioned at a loading position where the inner bag 4 is charged. It is. The push-up member 35 includes a slide mechanism 351 that slides in the push-up direction, pushes up the empty outer cardboard box 3 to the loading position, and when the inner bag 4 is stored, the outer cardboard box reaches the position of the lower surface transport roller 31. Pull 3 down.

  The inclined member 36 is a member for slightly tilting the outer cardboard box 3 pushed up to the loading position by the protruding member 35 further toward the inner bag conveying device 10 side, and protrudes from the gap between the side surface conveying rollers 33 so as to protrude from the outer cardboard box. 3, and a lower support member 362 that supports the lower surface of the outer corrugated cardboard box 3 that is further inclined by the side surface being pushed by the side protrusion member 361.

  The side protrusion member 361 has a surface that contacts the side surface of the outer cardboard box 3 inclined to the inner bag transfer device 10 side by about 10 ° from the side surface inclined by 40 °. When 361 protrudes from the gap between the side conveyance rollers 33 and is pressed against the side surface of the outer cardboard box 3, the outer cardboard box 3 is further inclined toward the inner bag conveyance device 10 by about 10 °.

  The lower support member 362 includes two rotatable rod-shaped members and a drive motor. After the outer cardboard box 3 is tilted by the side projecting member 361, the bar-shaped member is rotated and the outer cardboard box 362 is rotated. The lower surface of the box 3 is supported in the inclined state. After the inner bag 4 is inserted into the outer cardboard box 3, the side protruding member 361 and the lower support member 362 are retracted, and the outer cardboard box 3 returns to the state inclined by 40 ° and can be lowered.

  Of course, the inclination angle by the inclination member 36 can be changed as appropriate, and can be easily changed by changing the shape of the side protrusion member 361 or the lower support member 362.

  In this way, if the inclination member 36 is configured so that the inclination angle of the outer cardboard box 3 at the loading position can be finely adjusted, the inclination angle of the outer cardboard box 3 during the transfer by the outer box transfer device 30 is not changed. The inclination angle of the outer box at the time of charging can be finely adjusted to deal with bag-in-boxes of various sizes and shapes.

  A stop member for stopping the empty exterior cardboard box 3 being transported at the position of the protruding member 35 is installed on the exterior box transport path. The stop member is stopped by causing the contact member to jump out of the outer box transport path and contact the outer cardboard box 3. When the outer cardboard box 3 in which the inner bag 4 is housed is pulled down, the stop member is retracted from the outer box transport path, and the outer cardboard box 3 is transported downstream.

  The configuration of the loading device 1 according to the present embodiment has been described above. Next, the operation when the flexible inner bag 4 is loaded into the outer cardboard box 3 will be described. First, the state of the charging device 1 in FIGS. 1, 4 and 5 will be described.

  FIG. 1 shows a state in which the outer cardboard box 3 is not pushed up to the loading position and the lower guide board 26 is in the retracted position. In this state, the exterior cardboard box 3 is in a position where it does not contact the lower guide board 26 including the flap 3A. For this reason, the exterior cardboard box 3 can be freely transported on the lower surface transport roller 31.

  FIG. 4 shows a state in which the exterior cardboard box 3 is pushed up to the loading position by the protruding member 35 and the lower guide board 26 is in the guiding position. In this state, the lower guide board 26 is inserted to the vicinity of the lower surface in the exterior cardboard box 3.

  In FIG. 5, from the state shown in FIG. 4, the outer cardboard box 3 in the loading position is further tilted toward the inner bag guide device 20 by the inclined member 36, and the inner bag 4 is thrown into the outer cardboard box 3. Indicates the state.

  When the flexible inner bag 4 is thrown into the outer cardboard box 3, first, in the state shown in FIG. 1, the empty outer cardboard box 3 is transported by the outer box transport device 30 to below the loading position. Thereafter, as shown in FIG. 4, the exterior cardboard box 3 is pushed up to the loading position by the protruding member 35. Subsequently, as shown in FIG. 5, the inner bag 4 is introduced in a state where the exterior cardboard box 3 is further inclined by the inclined member 36.

  In the inner bag transfer device 10, the inner bag 4 is sandwiched between the upper transfer device 11 and the lower transfer device 13 and transferred to the loading position. Since the cap 4A of the inner bag 4 is positioned and transported between the first belt conveyor 11A and the second belt conveyor 11B, the cap 4A protruding from the inner bag 4 is used for the upper transport device 11 and the lower transport device. 13 will not collide.

  When the proximity sensor 15 detects that the inner bag 4 has approached the loading position, the inner bag conveying device 10 controls the lower conveying speed of the upper conveying device 11 to be slower than the lower conveying device 13, When the inner bag 4 is discharged from the downstream end of the inner bag conveying device 10, the inner bag 4 slides down on the lower guide board 26 by its own weight while rotating slightly so that the lower surface side thereof is directed forward and the upper surface side thereof is directed rearward.

  As a result, the inner bag has a desired posture in which the bottom surface of the inner bag 4 is positioned on the bottom surface of the outer cardboard box 3 inclined toward the inner bag conveying device 10 at the loading position, and the cap 4A is positioned in the upper opening. 4 can be put into the outer cardboard box 3.

  The inner bag 4 released while rotating tends to fall into the outer cardboard box 3 by its own weight. At this time, the inner bag 4 is at a guide position below the inner bag 4 and is parallel to the inner bag conveyance path 60. A lower guide board 26 extending into the exterior cardboard box 3 is located. For this reason, the inner bag 4 falls while sliding on the lower guide board 26 having a small friction coefficient, and reaches the bottom surface of the outer cardboard box 3.

  When the inner bag 4 enters the outer cardboard box 3, the lower guide board advance / retreat member 27 of the inner bag guide device 20 retracts the lower guide board 26 to the retracted position. As shown, the cap 4A is housed in the outer cardboard box 3 with the cap 4A positioned near the upper center.

  As described above, according to the present embodiment described in detail, the upper conveying device 11 of the inner bag conveying device 10 that conveys the inner bag 4 from above and below is moved from the belt conveyors 11A and 11B installed at a predetermined interval. By configuring and transporting the inner bag 4 so that the cap 4A passes between them, the inner bag 4 on which the cap 4A is installed can be stably transported to a loading position in a desired posture.

  When the inner bag 4 is put into the outer cardboard box 3, the inner bag 4 falls into the outer cardboard box 3 while being guided by the lower guide board 26. The inner bag 4 can be accommodated in the outer cardboard box 3 in a desired posture in which the cap 4A is positioned at the upper side, and the occurrence of pinholes in the inner bag 4 is also prevented. be able to.

  The lower guide board 26 is moved back and forth between the guide position and the retracted position every time the inner bag 4 is inserted into the outer cardboard box 3 by the lower board advance / retreat member 27. It is possible to perform smooth and high-speed feeding without lowering the loading speed in the loading device 1 without hindering conveyance.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to the said embodiment, A various deformation | transformation is possible within the range which does not deviate from the main point of this invention. For example, it goes without saying that the shape, size, material, and the like of each member constituting the charging device can be changed as appropriate.

  Moreover, in the said embodiment, although the exterior cardboard box at the time of throwing is comprised so that it may be in the state inclined 50 degrees from the vertical state to the inner bag conveying apparatus side, this inclination angle can also be changed suitably. However, if the inclination angle is small, the inner bag falls more vertically, which is not desirable. Further, when the inclination angle is increased, the inner bag is caught in the middle of the outer cardboard box and cannot reach the bottom surface. Therefore, it may be adjusted to a desired inclination angle according to the shape and size of the bag in boggs, the position of the cap, and the like.

  Moreover, in the said embodiment, although polytetrafluoroethylene is used as a material of a guide board, the other material of a low friction coefficient can be used suitably. For example, fluorine-based resins such as Naflon (registered trademark) other than polytetrafluoroethylene and other synthetic resins can be used.

DESCRIPTION OF SYMBOLS 1 Feeding device 6 Case 10 Inner bag conveying device 11 Upper conveying device 11A Belt conveyor 11B Belt conveyor 13 Lower conveying device 15 Proximity sensor 20 Inner bag guiding device 25 Lower guiding device 26 Lower guiding board 27 Lower board advance / retreat member DESCRIPTION OF SYMBOLS 29 Shooter 30 Outer box conveyance apparatus 31 Lower surface conveyance roller 33 Side surface conveyance roller 35 Upward member 36 Inclination member 361 Side protrusion member 362 Lower support member 60 Inner bag conveyance path 2 Bag in box 3 Outer cardboard box 3A Flap 4 Inner bag 4A cap

Claims (5)

In a bag-in-box charging device for charging and storing a flexible inner bag filled with contents into an outer box from an upper opening,
An outer box transporting device for transporting the outer box to a loading position at which the inner bag is put;
An inner bag conveying device that includes an upper belt conveyor and a lower belt conveyor that convey the inner bag sandwiched from above and below, and conveys the inner bag toward the exterior box at a loading position, wherein the upper belt conveyor is An inner bag transport device having a first belt conveyor and a second bell conveyor installed in parallel at a predetermined interval;
A bag-in-box charging device comprising:   The inner bag conveying device includes a proximity sensor that detects that the inner bag has approached the loading position, and when detecting that the inner bag has approached the loading position, the upper bag conveyor and the lower belt conveyor The bag-in-box charging device according to claim 1, wherein a transfer speed is relatively changed to adjust a posture of the inner bag when discharged from the inner bag transfer device.   An inner bag guide device that is located near the downstream end of the inner bag transfer device and that smoothly puts and stores the inner bag in the outer box, and supports the lower surface side of the inner bag at the time of loading. A lower guide board for guiding the inner bag, a guide position for guiding the inner bag in the vicinity of the inner bottom surface of the outer packaging box in which the front end of the lower guide board is at a loading position, and a front end of the lower guide board The inner bag guide device further comprising: a lower board advancing / retracting member for moving the lower guide board forward / backward to / from a retracted position outside the outer box at the input position. The charging device for bag-in-box according to 1 or 2.   The outer box conveying device has a side protruding member that pushes a side surface of the outer box at the charging position toward the inner bag conveying device by protruding into a conveying path of the outer box, and the outer box at the charging position. The bag-in-box charging device according to any one of claims 1 to 3, further comprising an exterior box tilting member that tilts the bag toward the inner bag transfer device side.   The outer box transport device is a device that transports the outer box so as to be inclined to the inner bag transport device side from the vertical state in which the upper opening is located right above when the outer box is in the loading position, 5. The bag-in-box charging device according to claim 4, wherein the outer-box tilting member is configured to further tilt the outer-box in the tilted state at the charging position toward the inner bag conveying device by the side protruding member. .

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