JP5833785B1 - Bag removal device - Google Patents

Abstract

The present invention provides a bag removing apparatus capable of enhancing a processing capability for separating a bag and contents. A bag removal device 1 that removes a bag 2A from a package 2 in which the contents 2B are packaged with the bag 2A is in contact with the conveyor 10 that conveys the package 2 and the package 2 that is being conveyed by the conveyor 10. A cutter 20 that opens the bag 2A, and a roller 30 disposed above the conveyor 10 so as to contact the package 2 that the bag 2A is opened. The roller 30 is a package that is being conveyed by the conveyor 10. The conveyor 10 and the roller 30 are transported in the transport direction F with the bag 2A interposed therebetween, and the contents 2B are transported in the transport direction. It conveys in the direction which cross | intersects F, and the bag 2A and the content 2B are isolate | separated. [Selection] Figure 1

Description

  The present invention relates to a bag removal apparatus that removes a bag from a package in which contents are packaged in a bag.

  When taking out the contents (for example, foods, such as meat) put in a bag from a lot of bags, manual bag removal work becomes a big burden for an operator. Therefore, a bag removing device that automatically removes the bag from the package has been developed (see, for example, Patent Document 1).

  The bag removal apparatus of Patent Document 1 includes a carry-in conveyor that conveys a package, a first cutter and a second cutter that cut out the lower surface of the package, an adsorber that adsorbs the upper surface of the package to an adsorption pad, An upper turntable for moving the suction pad and the suction tool, a carry-out conveyor for conveying the contents, and a shooter for guiding the bag to the bag receiver are provided. The bag and the contents are separated by dropping the contents from an incision formed in the lower surface of the bag. The contents dropped from the bag are received at the receiving port of the carry-out conveyor and guided to the carry-out conveyor. After the contents fall from the bag, the upper turntable moves the bag together with the suction pad onto the shooter, and the bag is dropped on the shooter and is collected in the bag receiver by not being sucked by the suction pad.

  By the way, in the structure of patent document 1, when dropping the contents from the incision part of a bag, it is necessary to make a packaging body adsorb | suck to an adsorption pad reliably so that a packaging body may not fall from an adsorption pad. Therefore, the processing capacity for separating the bag and the contents per predetermined time depends on the suction performance of the package by the suction tool, and the processing capacity cannot be increased even if the transport speed of the carry-in conveyor is increased. There is.

JP 2001-72026 A

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the bag removal apparatus which can improve the processing capability which isolate | separates a bag and the contents.

  In order to solve the above-described problem, the bag removing apparatus according to claim 1 is a bag removing apparatus that removes the bag from a package body whose contents are packaged in a bag, and a conveyor that conveys the package body, A cutter that opens the bag by contacting the package that is being conveyed by the conveyor; and a roller that is disposed above the conveyor so as to contact the package that is opened by the bag. Is rotated around an axis that obliquely intersects the transport direction of the package being transported by the conveyor, and the conveyor and the roller transport in the transport direction across the bag, and the contents An article is conveyed in a direction crossing the conveyance direction, and the bag and the contents are separated.

  According to a second aspect of the present invention, there is provided the bag removing apparatus according to the first aspect, further comprising a roller driving device including an electric motor that rotates the roller.

  According to a third aspect of the present invention, there is provided a bag removing apparatus according to the first or second aspect, further comprising a roller height adjusting device that adjusts a height of the roller with respect to the conveyor.

  Moreover, the bag removal apparatus as described in Claim 4 is a bag removal apparatus as described in any one of Claims 1-3, The said conveyor is provided with the belt which conveys the said package, The said belt is the said belt, It has the upper surface which inclines with respect to the horizontal direction perpendicular | vertical to a conveyance direction.

  Moreover, the bag removal apparatus as described in Claim 5 is a bag removal apparatus as described in any one of Claims 1-4, The said cutter rotates centering on the axis | shaft located in the side of the said conveyor. A blade is provided.

Moreover, the bag removal apparatus as described in Claim 6 is a bag removal apparatus as described in any one of Claims 1-5. WHEREIN: The said conveyor conveys the said package body in which the said bag is not cut open. It is comprised by the conveyor and the 2nd conveyor which conveys the said packaging body by which the said bag was cut open, The conveyance speed of the said packaging body by the said 2nd conveyor is compared with the conveyance speed of the said packaging body by the said 1st conveyor. It is characterized by being fast.

  In addition, the bag removing apparatus according to claim 7 is the bag removing apparatus according to any one of claims 1 to 6, wherein the bag removing apparatus is disposed above the conveyor and rotates in accordance with the rotation of the roller. Another roller is provided, and the other roller is provided side by side with the roller in the transport direction so as to prevent the bag from being wound around the roller.

  ADVANTAGE OF THE INVENTION According to this invention, the bag removal apparatus which can improve the processing capability which isolate | separates a bag and the contents can be provided.

(A) And (B) is a schematic diagram which shows schematic structure of the bag removal apparatus which concerns on one Embodiment of this invention. It is a schematic diagram which shows schematic structure of the bag removal apparatus which concerns on the embodiment, Comprising: (A) is a figure which shows a 1st conveyor etc., (B) is a figure which shows a 2nd conveyor etc. FIG. It is a schematic diagram which shows schematic structure of the roller control mechanism which concerns on the embodiment. It is an enlarged side view of the roller concerning the embodiment. (A) And (B) is a schematic diagram which shows operation | movement of the bag removal apparatus which concerns on the same embodiment. (A) And (B) is a schematic diagram which shows operation | movement of the bag removal apparatus which concerns on the same embodiment.

  An embodiment of the present invention will be described with reference to the drawings. In the drawings, an X direction, a Y direction, and a Z direction indicated by arrows indicate directions orthogonal to each other. Moreover, illustration of the support frame for supporting the bag removing apparatus 1 is omitted.

  FIG. 1A shows the overall configuration of the bag removing apparatus 1 viewed from the Z direction, and FIG. 1B shows the entire configuration of the bag removing apparatus 1 viewed from the Y direction. Note that in FIG. 1B, part of the structure illustrated in FIG.

  As shown in FIG. 1, the bag removing device 1 includes a conveyor 10, a cutter 20, two rollers 30 and 40, a roller control mechanism 50, and a motor control device 60. The bag removing apparatus 1 removes the bag 2A from the package 2 in order to take out the contents 2B put in the bag 2A from the bag 2A.

  The package 2 is composed of a bag 2A and a content 2B put in the bag 2A. The bag 2A is made of a flexible plastic. The content 2B is a solid material, and is a food product such as meat. The package 2 placed on the conveyor 10 is transported in the transport direction F (one of the X directions) indicated by the arrow F in the drawing.

  The conveyor 10 is a transport device that includes a first conveyor 10A and a second conveyor 10B. Each conveyor 10A, 10B is comprised by the belt conveyor, and conveys the package body 2. As shown in FIG. The conveyance speed of the package 2 by the second conveyor 10B is faster than the conveyance speed of the package 2 by the first conveyor 10A. The first conveyor 10A includes a belt 11A on which the packaging body 2 is placed, a plurality of rollers 12A that support the belt 11A, and a motor 13A connected to at least one roller 12A. The second conveyor 10B includes a belt 11B that receives the package 2 from the first conveyor 10A, a plurality of rollers 12B that support the belt 11B, and a motor 13B that is connected to at least one roller 12B. Each belt 11A, 11B has an upper surface on which the package 2 is placed, and the Z direction is a direction perpendicular to the upper surfaces of the belts 11A, 11B. Further, the conveyor 10 is provided with a sidewall 14 disposed on the side of the belt 11A and a chute 15 disposed on the side of the belt 11B.

  The cutter 20 is an incision device that opens the bag 2A of the package 2 and is provided on the side of the first conveyor 10A (one side in the Y direction). The cutter 20 includes a rotary blade 21 that rotates about the rotation axis R <b> 2 and a motor 22 connected to the rotary blade 21. The rotation axis R2 is an axis perpendicular to the upper surface of the belt 11A.

  The roller 30 is a rotating body that rotates about the rotation axis R3, and is provided above the second conveyor 10B. The rotation axis R3 is an axis that obliquely intersects the transport direction F of the package 2 being transported by the second conveyor 10B, and is provided in parallel to the upper surface of the belt 11B. The angle of the rotation axis R3 with respect to the transport direction F is preferably 45 ° to 55 °, and more preferably 50 °. The roller 30 has a perfect circle shape when viewed from a direction parallel to the rotation axis R3. The distance between the roller 30 and the belt 11B (the height of the roller 30 with respect to the belt 11B) is set so that the content 2B cannot pass between the roller 30 and the belt 11B. The roller 30 is made of a flexible and elastic material such as polyurethane foam.

  The roller 40 is a rotating body that rotates around the rotation axis R4 in accordance with the rotation of the roller 30, and is provided above the second conveyor 10B. The roller 40 is provided side by side with the roller 30 in the transport direction F, and is disposed on the downstream side of the roller 30 in the transport direction F with a gap from the roller 30. The diameter of the roller 40 is smaller than the diameter of the roller 30. Further, the distance between the roller 40 and the belt 11B is narrower than the distance between the roller 30 and the belt 11A. The rotation axis R4 is an axis provided in parallel with the rotation axis R3. The roller 40 has a polygonal shape when viewed from a direction parallel to the rotation axis R4. The roller 40 is made of a material having a high friction coefficient such as rubber.

  The roller control mechanism 50 has a function of rotating the rollers 30 and 40 and a function of adjusting the height of the rollers 30 and 40. The detailed configuration of the roller control mechanism 50 will be described later with reference to FIG.

  The motor control device 60 controls the motors 13A, 13B, and 22 and a motor 55 described later. The motor control device 60 has a touch panel (not shown) as an instruction input unit operated by the user, and controls the motors 13A, 13B, 22, and 55, which are electric motors, based on the user's instructions. The conveyance speed of the packaging body 2 by the first conveyor 10A, the conveyance speed of the packaging body 2 by the second conveyor 10B, the rotation speed of the rotary blade 21, and the rotation speed of the rollers 30 and 40 are changed. Further, the motor control device 60 has an emergency stop switch (not shown), and when the emergency stop switch (not shown) is operated, the driving of the motors 13A, 13B, 22, 55 is stopped. In addition, the motor control device 60 includes a display (not shown) that displays the load status of the roller 30.

  2A shows a state where the first conveyor 10A and the rotary blade 21 are viewed from the X direction, and FIG. 2B shows the second conveyor 10B, the rollers 30, 40 and the like viewed from the X direction. Indicates the state. In FIG. 2, a part of the structure shown in FIG. 1A is omitted.

  As shown in FIGS. 2A and 2B, the upper surfaces of the belts 11A and 11B are inclined toward the side (one in the Y direction) perpendicular to the transport direction F (see FIG. 1). Inclined with respect to the horizontal direction H indicated by the arrow H in the figure. Specifically, the belt 11A is inclined in the direction in which the sidewall 14 and the rotary blade 21 are disposed, and the belt 11B is inclined in the direction in which the chute 15 is disposed. The inclination angle of the upper surfaces of the belts 11A and 11B with respect to the horizontal direction H is, for example, 5 °.

  FIG. 3 shows a state in which the roller control mechanism 50 is viewed from a direction perpendicular to the rotation axes R3 and R4 and a direction perpendicular to the Z direction. FIG. 4 shows a state in which the rollers 30 and 40 are viewed from a direction parallel to the rotation axes R3 and R4.

  As shown in FIG. 3, the roller control mechanism 50 includes a lower frame 51 supported by a support frame that supports the bag removing device 1, a pair of vertical frames 52 extending upward from the lower frame 51, and a pair of vertical frames 52. And a support frame 54 that rotatably supports the rollers 30 and 40.

  The roller control mechanism 50 includes a motor 55 connected to the rollers 30 and 40. The motor 55 is attached to the vertical frame 52 and is movably provided in the Z direction with respect to the vertical frame 52. As shown in FIG. 4, the motor 55 rotates the roller 30 in the direction indicated by the arrow M and rotates the roller 40 in the direction indicated by the arrow N. The load generated in the motor 55 is detected as a load state of the roller 30 and displayed on a display provided in the motor control device 60. Further, the roller control mechanism 50 includes gears (not shown) that connect the rollers 30 and 40 to each other in order to rotate the rollers 30 and 40 in a mechanically interlocking manner.

  The roller control mechanism 50 includes a screw jack 56 connected to the support frame 54, a pair of slide mechanisms 57, and a motor 58 connected to the screw jack 56. The screw jack 56 includes a shaft body 56A in which a female screw is formed, and a gear (not shown) that meshes with the shaft body 56A. When the gear meshing with the shaft body 56A is rotated, the support frame 54, the rollers 30, 40, and the motor 55 are moved in the Z direction together with the shaft body 56A. Each slide mechanism 57 includes a shaft 57 </ b> A connected to the support frame 54 and a linear bush 57 </ b> B provided on the upper frame 53. As the shaft 57A slides relative to the linear bush 57B, the movement of the support frame 54 in the Z direction is guided. The motor 58 is attached to the upper frame 53. The motor 58 constitutes an electric linear actuator together with the screw jack 56, and raises and lowers the rollers 30 and 40 by rotating a gear meshing with the shaft body 56A. As the rollers 30 and 40 move up and down, the distance between the rollers 30 and 40 and the belt 11B, that is, the height of the rollers 30 and 40 relative to the belt 11B is adjusted.

  With reference to FIG. 5 and FIG. 6, the operation of the bag removing apparatus 1 will be described. 5 and 6 show a process in which the bag 2A is removed from the package 2 by the bag removing device 1. FIG. 5 (A) and 5 (B) show the bag removing device 1 as viewed from the Z direction, and FIGS. 6 (A) and 6 (B) show the directions in which the rollers 30 and 40 are parallel to the rotation axes R3 and R4. The state seen from.

  When the package 2 is placed on the belt 11 </ b> A, the first conveyor 10 </ b> A conveys the package 2 in which the bag 2 </ b> A is not cut open in the conveyance direction F so that the package 2 contacts the cutter 20. And as shown to FIG. 5 (A), the rotary blade 21 of the cutter 20 opens the side surface of the bag 2A by contacting the package 2 being conveyed by the first conveyor 10A. The package 2 in which the bags 2A are cut open is conveyed from the first conveyor 10A to the second conveyor 10B, and the belt 11B receives the package 2.

  When the belt 11B receives the package 2, as shown in FIG. 6A, the second conveyor 10 </ b> B transports the package 2 in which the bag 2 </ b> A is cut open so that the package 2 contacts the roller 30. Transport to F. As shown in FIG. 6B, the belt 11B and the roller 30 of the second conveyor 10B are conveyed in the conveying direction F with the bag 2A interposed therebetween. That is, the bag 2 </ b> A of the package 2 passes between the belt 11 </ b> B and the roller 30, and the movement of the content 2 </ b> B in the transport direction F is blocked by the roller 30. Further, the roller 40 conveys the bag 2A in the conveyance direction F so that the bag 2A that has passed between the belt 11B and the roller 30 does not wind around the roller 30.

  The content 2B whose movement in the conveyance direction F is blocked by the roller 30 slides on the belt 11B along the roller 30 extending obliquely with respect to the conveyance direction F, or slides on the belt 11B by the action of gravity. Move. Thus, as shown in FIG. 5B, the belt 11B and the roller 30 of the second conveyor 10B convey the contents 2B in the direction D intersecting the conveyance direction F, and separate the bag 2A and the contents 2B. .

In the present embodiment, the following effects can be obtained.
(1) The bag removing apparatus 1 includes a conveyor 10, a cutter 20, and a roller 30, and the roller 30 is oblique to the conveyance direction F of the package 2 being conveyed by the conveyor 10 (second conveyor 10B). Rotate about an axis (rotation axis R3) intersecting with. Conveyor 10 (second conveyor 10B) and roller 30 convey bag 2A in conveyance direction F and convey contents 2B in direction D intersecting conveyance direction F, so that bags 2A and contents 2B are conveyed. And are separated. According to this configuration, since the content 2B is taken out from the bag 2A while the package 2 is being transported by the conveyor 10, the bag 2A and the content 2B are separated by increasing the transport speed of the conveyor 10. Processing capacity can be increased.

  (2) The bag removing apparatus 1 includes a roller control mechanism 50 including an electric motor (motor 55) that rotates the roller 30. According to this configuration, the roller 30 can positively convey the bag 2 </ b> A in the conveyance direction F together with the conveyor 10.

  (3) The bag removing apparatus 1 includes a roller control mechanism 50 that adjusts the height of the rollers 30 with respect to the conveyor 10 (second conveyor 10B). According to this structure, the processing capability which isolate | separates the bag 2A and the content 2B can be improved more by adjusting the space | interval of the conveyor 10 and the roller 30 according to the dimension of the package 2, etc.

  (4) The conveyor 10 includes a belt 11 </ b> B that conveys the package 2, and the belt 11 </ b> B has an upper surface that is inclined with respect to a horizontal direction perpendicular to the conveyance direction F. According to this structure, the content 2B taken out from the bag 2A by gravity is easily transported to the side of the conveyor 10, and the bag 2A and the content 2B can be efficiently separated.

  (5) The cutter 20 includes a rotary blade 21 that rotates about an axis (rotation axis R2) located on the side of the conveyor 10 (first conveyor 10A). According to this structure, the side surface of the bag 2A of the package 2 can be cut open.

  (6) The conveyance speed of the package 2 by the second conveyor 10B is faster than the conveyance speed of the package 2 by the first conveyor 10A. According to this configuration, the bag 2A can be reliably opened by the cutter 20, and the processing capability for separating the bag 2A and the contents 2B can be enhanced.

  (7) The bag removal apparatus 1 is disposed above the conveyor 10 (second conveyor 10B) and includes another roller (roller 40) that rotates in accordance with the rotation of the roller 30. The roller 40 is the bag 2A. Are arranged side by side on the roller 30 in the transport direction F so as to prevent the roller 30 from being wound around the roller 30. According to this configuration, the bag 2 </ b> A sandwiched and conveyed by the conveyor 10 and the roller 30 can be prevented from being wound around the roller 30.

  The present invention is not limited to the above-described embodiment, and the configuration of the above-described embodiment can be changed as appropriate. For example, the following modifications can be implemented, and the following modifications can be combined.

  The roller height adjusting device can be configured by a linear actuator using a hydraulic cylinder instead of the screw jack 56. That is, the configuration of the roller height adjusting device may be changed as appropriate. Further, the screw jack 56 and the motor 58 may be omitted from the roller control mechanism 50 as long as the bag 2A and the contents 2B can be separated. That is, the bag removing apparatus 1 may not include a roller height adjusting device that adjusts the height of the rollers 30 and 40.

  If the roller 30 can be rotated, the motor 55 of the roller control mechanism 50 can be omitted. For example, the roller 30 may be rotated by power generated by any of the motors 13A, 13B, and 22. In addition to the motor 55 that rotates the roller 30, another electric motor that rotates the roller 40 may be provided.

  -The material and shape of the rollers 30 and 40 may be appropriately changed. If the bag 2A that has passed between the roller 30 and the conveyor 10 does not wind around the roller 30, the roller 40 may be omitted.

  -You may change the structure of the cutter 20 suitably. For example, the rotary blades 21 may be provided on both sides (one and the other in the Y direction) of the conveyor 10, and the cutter 20 may include a plurality of rotary blades 21. If the bag 2A can be opened, the cutter 20 may open the bag 2A with a configuration other than the rotary blade 21.

  -You may change the structure of the conveyor 10 suitably. For example, you may comprise the conveyor 10 by one belt conveyor. In addition, as long as the contents 2B that have come out of the bag 2A can be transported in a desired direction D that intersects the transport direction F, the upper surface of the belt of the conveyor 10 may not be inclined.

DESCRIPTION OF SYMBOLS 1 Bag removal apparatus 2 Package 2A Bag 2B Contents 10 Conveyor 10A 1st conveyor 10B 2nd conveyor 11A, 11B Belt 20 Cutter 30, 40 Roller 50 Roller control mechanism (roller drive device, roller height adjustment device)
55 Motor (electric motor)
56 Screw jack 58 Motor 60 Motor controller F Conveying direction H Horizontal direction R2 Rotating shaft R3 Rotating shaft R4 Rotating shaft

Claims (7)

A bag removing device for removing the bag from a package in which the contents are packed in a bag,
A conveyor for conveying the package;
A cutter that opens the bag by contacting the package being conveyed by the conveyor;
A roller disposed above the conveyor so as to come into contact with the package body that the bag is cut open;
The roller rotates about an axis that obliquely intersects the transport direction of the package being transported by the conveyor,
The conveyor and the roller convey the contents in the conveying direction across the bag, convey the contents in a direction intersecting the conveying direction, and separate the bags and the contents. A bag removal device. The bag removing apparatus according to claim 1, further comprising a roller driving device including an electric motor that rotates the roller. The bag removing apparatus according to claim 1, further comprising a roller height adjusting device that adjusts a height of the roller with respect to the conveyor. The conveyor includes a belt that conveys the package,
The bag removing device according to any one of claims 1 to 3, wherein the belt has an upper surface that is inclined with respect to a horizontal direction perpendicular to the transport direction. The bag removing device according to any one of claims 1 to 4, wherein the cutter includes a rotary blade that rotates about an axis positioned on a side of the conveyor. The conveyor is constituted by a first conveyor that conveys the packaging body in which the bags are not cut open, and a second conveyor that conveys the packaging body in which the bags are cut open,
The bag removal apparatus according to any one of claims 1 to 5, wherein a conveyance speed of the package body by the second conveyor is faster than a conveyance speed of the package body by the first conveyor. The other roller disposed above the conveyor and rotating in accordance with the rotation of the roller,
The said other roller is arranged in a line with the said roller in the said conveyance direction so that the said bag may be wound around the said roller. It is provided as described in any one of Claims 1-6 characterized by the above-mentioned. Bag removal device.

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