US20030009990A1 - Apparatus and method for automatic bag loading - Google Patents
Apparatus and method for automatic bag loading Download PDFInfo
- Publication number
- US20030009990A1 US20030009990A1 US09/905,409 US90540901A US2003009990A1 US 20030009990 A1 US20030009990 A1 US 20030009990A1 US 90540901 A US90540901 A US 90540901A US 2003009990 A1 US2003009990 A1 US 2003009990A1
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- United States
- Prior art keywords
- bag
- vacuum
- operated device
- protruding member
- bags
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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- 239000000284 extract Substances 0.000 claims abstract description 13
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- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 244000061456 Solanum tuberosum Species 0.000 description 3
- 235000002595 Solanum tuberosum Nutrition 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 235000012015 potatoes Nutrition 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
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- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
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- 244000141359 Malus pumila Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000021016 apples Nutrition 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
- B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
Definitions
- the present invention is related generally to bag loading and, more particularly, to an apparatus and method for automatic bag loading.
- bale contains five individual 10 lb. bags of potatoes.
- Previous attempts to automate the bale loading process have been unsuccessful. Therefore, it can be appreciated that there is a significant need for an automatic process for loading bales.
- the present invention provides this and other advantages as will be apparent from the following detailed description and accompanying figures.
- the present invention is embodied in an apparatus and method for bag loading.
- the apparatus is for use with bags having an aperture therein and comprises a protruding member sized to fit through the aperture in the bags and thereby retain the bags in a substantially vertical orientation.
- a first vacuum-operated device has an operating surface to engage a first one of the bags on a first side of the bag and thereby extract the first bag from the protruding member.
- a second vacuum-operated device has an operating surface opposed to the operating surface of the first vacuum-operated device to engage the first bag on a second side of the bag and thereby open the first bag.
- the first vacuum-operated device comprises first and second vacuum-actuated suction cups to engage the first side of the first bag.
- the second vacuum-operated device may also comprise first and second vacuum-actuated surfaces to engage the second side of the first bag.
- the apparatus may further comprise a cutting edge associated with the protruding member to cut the first bag from the protruding member when it is extracted by the first set of vacuum-operated devices.
- the bag has a first and second ends with the second end being sealed and the first end being unsealed to permit loading of the bag when open.
- the aperture is located proximate the first end of the bag.
- the apparatus further comprises a first support member to which the first set of vacuum-operated devices are slidably mounted.
- the first set of vacuum-operated devices extract the first bag from the protruding member and is laterally displaced along the first support member into alignment with the second set of vacuum-operated devices.
- the apparatus may further comprise a second support member to which the second set of vacuum-operated devices are slidably mounted.
- the second set of vacuum-operated devices opens the first bag and the first and second sets of vacuum-operated devices are laterally displaced along the first and second support members, respectively, into alignment with a loading position to permit loading of the first bag.
- FIG. 1 is a top plan view of the inventive apparatus.
- FIG. 2 is a side view illustrating details of the inventive apparatus.
- FIG. 3 is a perspective view of a bale bag used with the inventive apparatus.
- FIG. 4 illustrates the bag of FIG. 3 in an open configuration.
- FIG. 5 is a partial enlarged front elevation view of the bag of FIG. 3.
- FIG. 6 is a top plan view illustrating the manufacture of the bag of FIG. 3.
- FIG. 7 is a side view of the inventive apparatus.
- FIG. 8 is a top plan view illustrating the apparatus in operation.
- FIG. 9 is a top plan view illustrating the extraction of a bale bag.
- FIG. 10 is a top plan view illustrating linear displacement of the extracted bag.
- FIG. 11 is a top plan view illustrating the engagement of the extracted bag to open the bag.
- FIG. 12 is a top plan view illustrating the activation of the apparatus to open the extracted bag.
- FIG. 13 is a top plan view of the inventive apparatus illustrating linear displacement of the extracted opened bag into a loading area.
- the present invention is directed to a technique that automatically extracts a bag, such as a bale bag, opens the bag, and positions the bag for loading.
- the present invention is embodied in a system 100 illustrated in the top plan view of FIG. 1.
- a plurality of bags 102 are placed on a protruding member 104 .
- the protruding member 104 is a rod mounted at an upwardly projecting angle, as illustrated in FIG. 2, to permit gravity feeding of the bags 102 .
- FIG. 2 is a side elevational view of the protruding member 104 illustrating its attachment to a frame 106 by a mounting bracket 108 .
- the mounting bracket 108 may be attached to the frame 106 using screws, nuts and bolts, rivets, or other known mechanical attachment components.
- the protruding member 104 may be directly mounted to the frame 106 using well-known conventional techniques, such as welding, adhesives, or the like.
- the protruding member 104 may have a rounded terminal portion 104 t to minimize the potential to damage to the aperture 124 when loading the bags 102 onto the protruding member.
- the rounded terminal portion 104 t also makes it easier to place the bags 102 on the protruding member 104 .
- a cutting blade 110 is mounted at the lowest portion of the protruding member 104 .
- the cutting blade 110 may be a razor blade, knife blade, or other known device.
- the cutting blade 110 may be mounted in a slot (not shown) in the protruding member 104 .
- the cutting blade 110 may be retained within the slot using conventional means, such as a set-screw, adhesive, or the like.
- the cutting blade 110 is used to extract a bag 102 from the protruding member 104 .
- the protruding member 104 is formed from a circular rod.
- the bag 102 is similar to a conventional bale bag, but is modified for use with the automatic system of the present invention.
- the bag 102 may be formed from one or more layers of brown paper.
- the bag 102 is illustrated in a folded or closed configuration in FIG. 3.
- the bags 102 are folded in the manner of a conventional grocery bag to permit ease in shipping and storage.
- the bag 102 is shown in an unfolded or open configuration in FIG. 4.
- the dimensions of the bag 102 are approximately 13 inches wide by 32 inches long.
- the bag has a depth of approximately 7 inches and an opening of approximately 7 inches by 13 inches.
- the bag 102 may have the standard dimensions described above, those skilled in the art will recognize that the system 100 can be used with bags of virtually any dimension. The only accommodation for bags of different size may be the relative location of the various components of the system 100 .
- the bag 102 may be manufactured from a single large piece of paper, illustrated in FIG. 5, that is cut, folded into several panels or portions, and glued in a conventional manner.
- the bag 102 has left and right side portions 112 l and 112 r , respectively.
- the bag 102 also includes front and back portions 114 f and 114 b , respectively.
- a strip 120 projects from the right side portion 112 r .
- the strip 120 is glued to the back portion 114 b when the bag 102 is formed.
- the left and right side portions 112 l and 112 r have flaps 121 , which are used to seal the bottom of the bag 102 .
- the front and back portions 114 f and 114 b have flaps 123 that are also used to seal and form a bottom portion 116 , as illustrated in FIG. 3.
- the bag 102 may be folded along fold lines 125 to form the front and back portions 114 f and 114 b and left and right side portions 112 l and 112 r .
- the strip 120 may be glued to the back portion 114 b to seal the various portions.
- the bag also includes fold lines 127 .
- the flaps 121 and 123 are folded at the fold lines 127 to form the bottom portion 116 .
- the flaps 121 from the left and right side portions 112 l and 112 r are folded.
- the flap 123 from the front portion 114 f is folded and glued to the flaps 121 .
- the flap 123 from the back portion 114 b is folded and glued to the flap 123 from the front portion 114 f to seal the bottom portion 116 of the bag 102 .
- the bag 102 may be manufactured.
- the bag 102 may be formed with creases to assist in folding the bag following manufacture.
- the bag 102 may include a front crease 122 f on the front portion 114 f extending from the left side portion 112 l to the right side portion 112 r near the bottom 116 of the bag.
- the precise location of the crease 122 f is typically dependent on the dimensions of the bag.
- the crease 122 f may be located at a distance from the bottom portion 116 that is approximately one-half of the distance between the front portion 114 f and the back portion 114 b when the bag is in the open configuration.
- the bag 102 may include creases 122 l and 122 r on the left and right side portions 112 l and 112 r , respectively.
- the crease 122 l and 122 r are located approximately midway between the front portion 114 f and the back 114 b when the bag is in the open configuration.
- the creases 122 l and 122 r extend from the top portion 118 to a point near the bottom portion 116 .
- the creases 122 l and 122 r extend to a point approximately equal to the location of the crease 122 f to facilitate folding of the bag 102 .
- additional creases extend from the midline of the side portions 112 l and 112 r to the junctions of the side portions 1121 and 112 r with the front and back portions 114 f and 114 b near the bottom portion 116 of the bag 102 .
- the bag 102 also includes an aperture 124 in the top portion 118 of the back portion 114 b .
- the aperture 124 is approximately 0.625 inches in diameter and is located a short distance from the top of the back portion 114 b .
- the aperture 124 may be spaced apart from the top of the back portion 114 b by approximately 0.25 inches.
- the short separation between the aperture 124 and the top of the back portion 114 b of the bag 102 permits the easy extraction of the bag from the protruding member 104 .
- the bag 102 may be removed from the protruding 104 simply by tearing the back portion 114 b at the point of narrow separation between the back portion and the aperture 124 .
- the cutting blade 110 may be used to slice the back portion 114 b at the aperture 124 thus preventing an undesirable tear.
- the bag 102 may include a perforated portion above the aperture to control the tearing.
- the cutting blade 110 can be eliminated.
- the aperture 124 is circular in shape to match the cylindrical shape of the protruding member 104 .
- the cylindrical shape of the protruding member 104 and the circular aperture 124 permit easy loading of bags 102 onto the protruding aperture. In addition, the bags 102 slide easily down the cylindrical protruding member 104 .
- the protruding member 104 may have different shapes and that the aperture 124 may be circular or may have a shape that corresponds to the selected shape for the protruding member.
- the protruding member 104 may have a semi-circular shape with a rounded portion on top and a flat portion on the bottom.
- the bags 102 may still have the circular aperture 124 , as illustrated in FIGS. 3 - 5 , or may have a shape selected to correspond to the shape of the protruding member 104 .
- Other shapes, such as triangular, rectangular, or the like may also be used satisfactorily with the system 100 .
- the present invention is not limited by the specific geometric form of the protruding member 104 or the aperture 124 .
- FIG. 5 is a fragmentary front elevational view of the bag 102 illustrating the location of the aperture 124 in the back portion 114 b of the bag.
- a curve cutout 126 in the front portion 114 f of the bag 102 more fully exposes the aperture 124 in the back portion 114 b and allows easy insertion of the protruding member 104 through the aperture when loading the bags.
- the bag 102 may also have a series of ventilation holes 129 in the front and back portions 114 f and 114 b to allow ventilation of the packaged produce.
- the system 100 also includes a set vacuum-operated suction devices 130 a and 130 b to engage and extract a first bag 102 from the protruding member 104 .
- the bags 102 are extracted from the protruding member 104 in the same sequence in which they are placed on the protruding member (i.e., first on-first off).
- the vacuum-operated devices 130 a - b have a terminal vacuum-operated suction cup 134 a and 134 b , respectively.
- the vacuum-operated devices 130 a - b make contact with the bag 102 , the bag is retained by virtue of the vacuum-operated suction cups 134 a - b .
- the vacuum-operated devices 130 a - b are mounted on air cylinder slides 136 a and 136 b , respectively.
- the air cylinder slides 136 b move in a direction indicated by a reference arrow 132 to allow the suction cups 134 a - b to engage a first of the bags 102 on the protruding member 104 .
- the vacuum operated devices 130 a - b may be positioned to engage the bag 102 at any desirable position.
- the suction cups 134 a - b engage a first side of the bag 102 on the back portion 114 b (see FIG. 4) near the top portion 118 at a distance of approximately 1.5-2 inches in from the left and right sides 112 l and 112 r , respectively.
- the vacuum-operated devices 130 a - b generate sufficient vacuum to engage a bag on the protruding member 104 , extract the bag and support the weight of the bag.
- the precise vacuum level is not critical, but must be sufficiently strong to perform the tasks outlined above.
- a vacuum may be readily generated using Venturi devices in which air is passed over the open end of a tube in order to create a suction at a distal end of the tube.
- the vacuum-operated devices 130 a - b are commercial products available from Vaccon Vacuum Generator.
- a pair of vacuum-operated devices 130 a - b are used to support the bag 102 .
- the use of dual vacuum-operated devices provides greater stability and relatively uniform extraction pressure on the bag 102 on both sides of protruding member 104 such that the bag is drawn smoothly against the cutting blade 110 .
- Additional vacuum-operated devices may be used to provide additional stability or if the size of the bag 102 warrants extra support.
- a single vacuum-operated device may be sufficient to extract the bag from the protruding member 104 .
- the system 100 is not limited by the number or specific layout of the vacuum-operated devices used to extract the bag 102 from the protruding member 104 .
- the air cylinder slides 136 a - b and the vacuum-operated devices 130 a - b move in the direction indicated by the reference arrow 132 to engage the bag 102 on the protruding member 104 .
- the suction cups 134 a - b engage a first side of the bag (i.e., the back portion 114 b ) and retain the bag.
- the system 100 is capable of automatically extracting a single bag 102 from the protruding member 104 .
- the vacuum-operated device 130 moves away from the protruding member in the direction indicated by the reference arrow 132 , the cutting blade 110 slices through a portion of the bag 102 to allow its easy removal from the protruding member.
- air cylinder slides such as the air cylinder slides 136 a - b is well known in the art and need not be described in greater detail herein.
- the vacuum devices 130 a - b may be moved back and forth in the direction indicated by the reference arrow 132 through other known techniques, such as stepper motors, servo motors, drive chains, belts, or the like.
- the system 100 is not limited by the specific technique used to move the vacuum-operated devices 130 a - b in the direction indicated by the reference arrow 132 .
- the vacuum-operated devices 130 a - b are capable of moving in the direction indicated by a reference arrow 138 .
- the vacuum-operated devices 130 a - b are coupled to respective support brackets 140 a and 140 b .
- the support brackets 140 a - b are slidably coupled to a support member 142 . Movement of the support brackets 140 a - b and thus the vacuum-operated devices 130 a - b in the direction indicated by the reference arrow 138 is controlled by a stepper motor (not shown).
- the vacuum-operated devices 130 a and 130 b move in unison in the direction indicated by the reference arrow 138 .
- the vacuum-operated devices 130 a - b may be locked together and controlled by a single stepper motor.
- the vacuum-operated devices 130 a and 130 b may be independent with the position of each of the vacuum-operated devices being controlled by individual stepper motors.
- the positioning of the vacuum-operated devices 130 a - b can be precisely controlled with stepper motors.
- Signals to control the operation of the stepper motors are generated by a conventional computer (not shown), such as a personal computer (PC), a single board microcomputer, microcontroller, or the like.
- Displacement of the vacuum-operated devices 130 a - b is precisely controlled by the number of pulses provided to the stepper motor.
- the stepper motor may be replaced by other conventional drive means, such as air cylinder slides, servo motors, chain drives, belt drives, screw drives, and the like.
- Drive mechanisms such as chain drives, may use position sensing microswitches (not shown) to control movement of the vacuum-operated devices 130 a - b in the direction indicated by the reference arrow 138 .
- position sensing microswitches are well known in the art and need not be described in greater detail herein.
- the system 100 has a second pair of vacuum-operated devices 150 a and 150 b that are positioned in opposition to the vacuum-operated devices 130 a - b .
- a suction cup 154 a and 154 b is mounted at the terminal end of the vacuum-operated devices 150 a - b , respectively.
- the vacuum-operated devices 150 a - b engage a bag 102 that has been previously been extracted by the vacuum-operated devices 130 a - b .
- the vacuum-operated devices 130 a - b move in the direction indicated by the reference 132 until the suction cups 134 a - b engage a single bag 102 on a first side of the bag (i.e., the back portion 114 b ).
- the vacuum may be activated as the air cylinder slides 136 a - b are activated such that a vacuum is established before the suctions cups 134 a - b make contact with the bag 102 .
- the vacuum can be established as the suction cups 134 a - b approach the bag 102 .
- the vacuum is activated such that the suction cups 134 a - b engage the first side of the bag 102 .
- a single bag is extracted from the protruding member 104 .
- the vacuum-operated devices 130 a - b move in a direction indicated by the reference arrow 138 until the vacuum-operated devices are substantially aligned with the vacuum-operated devices 150 a - b .
- the vacuum-operated devices 130 a - b move in the direction indicated by the reference arrow 132 toward the vacuum-operated devices 150 a - b until the suction cups 154 a - b engage the second side of the bag 102 (i.e., the front portion 114 f ) opposite the vacuum-operated devices 130 a - b .
- the vacuum-operated devices 150 a - b are positioned to engage the front portion 114 f of the bag 102 on the opposite side of the bag from the vacuum-operated devices 130 a - b.
- the vacuum may be activated and the vacuum-operated devices 130 a - b moved in a direction indicated by the reference arrow 132 away from the vacuum-operated devices 150 a - b to thereby unfold the bag.
- the vacuum for the vacuum-operated devices 150 a - b may be activated as the extracted bag 102 approaches. The precise moment of activation of the vacuum-operated devices 150 a - b is not critical to satisfactory operation of the system 100 .
- the vacuum-operated devices 150 a - b are not mounted on air cylinder slides, such as the air cylinder slides 136 a - b used to move the vacuum-operated devices 130 a - b in the direction indicated by the reference arrow 132 .
- the construction and operation of the system 100 are simplified by fixing the position of the vacuum-operated devices 150 a - b so that no movement occurs in the direction indicated by the reference arrow 132 . Such an arrangement simplifies the system 100 by eliminating need for air cylinder slides and the associated measurement and control circuitry.
- both sets of vacuum-operated devices i e., the vacuum-operated devices 130 a - b and 150 a - b
- air cylinder slides e.g., the air cylinder slides 136 a - b
- the vacuum-operated devices 150 a - b are also capable of movement in a second direction indicated by the reference arrow 158 .
- the vacuum-operated devices 150 a - b are coupled to support brackets 160 a and 160 b .
- the support brackets 160 a - b are slidably connected to a support member 162 to permit movement in the direction indicated by the reference arrow 158 . Movement of the vacuum-operated devices 150 a - b in the direction indicated by the reference arrow 158 is controlled by stepper motors. As discussed above with respect to the vacuum-operated devices 130 a - b , a single stepper motor may be sufficient to move both vacuum-operated devices 150 a - b .
- the vacuum-operated devices 150 a - b are coupled together for movement controlled by the single stepper motor.
- a stepper motor may be associated with each of the vacuum-operated devices 150 a and 150 b .
- the movement of the vacuum-operated devices 150 a - b in the direction indicated by the reference arrow 158 may be controlled by other conventional techniques, such as servo motors, air cylinder slides, chain drive, belt drive, screw drive, and the like.
- the present invention is not limited by the specific form of the drive mechanism used to control movement of the vacuum-operated devices 150 a - b in the direction indicated by the reference arrow 158 .
- the vacuum-operated devices 130 a - b and the vacuum-operated devices 150 a - b move in synchronization in the direction indicated by the reference arrows 138 and 158 , respectively.
- the extracted and opened bag 102 is moved into position at a conveyor belt 170 where the bag may be loaded.
- Conventional devices are used to automatically load the opened bag 102 .
- a set of clamps (not shown) attached to the top of the side portions 122 l and 122 r stabilize and retain the bag 102 while it is being loaded.
- the bottom 116 of the bag rests on the conveyor belt 170 .
- the side clamps release and the conveyer belt 170 is activated to move the loaded bag 102 out of the loading area.
- the sequence of opening the bag and moving the bag to the conveyor belt 170 may be performed interchangeably. That is, the extracted bag 102 may be unfolded and subsequently moved to the conveyor belt 170 , as described above. Alternatively, the extracted bag 102 may be moved to the conveyor belt 170 while still in the folded configuration (see FIG. 3). The bag 102 may be subsequently opened into the unfolded configuration (see FIG. 4) after arrival at the conveyor belt 170 .
- the present invention is not limited by the specific sequence of these two events.
- FIG. 7 is a side view of the system 100 .
- the vacuum-operated devices 130 a - b and 150 a - b are mounted at approximately the same height, but facing towards each other.
- the vacuum-operated devices 130 a - b and 150 a - b are coupled to support members 142 and 162 , respectively, by respective support brackets 140 and 160 .
- the support members 142 and 162 are rectangular supports that may conveniently be manufactured from aluminum or other conventional materials.
- the support members 142 and 162 each contain a channel 174 .
- the mounting bracket 140 is inserted in the channel 174 of the support member 142 such that the vacuum-operated devices 130 a - b may move smoothly along the channel in a direction indicated by the reference arrow 138 (see FIG. 1).
- the support bracket 160 is inserted into the channel 174 of the support member 162 to permit the vacuum-operated devices 150 a - b to move easily along the channel in the direction indicated by the reference arrow 158 (see FIG. 1).
- FIGS. 7 - 12 are top plan views of the system 100 illustrating the positioning of the vacuum-operated devices 130 a - b and 150 a - b at different stages of the process.
- the vacuum-operated devices 130 a - b advance in the direction indicated by the reference arrow 132 until the suction cups 134 a - b make contact with the first bag 102 on the protruding member 104 .
- the vacuum device may be continuously activated at this step or may be activated at any point before contacting the bag 102 or at the time of contact of the bag.
- the suction cups 134 a - b engage and retain the first bag 102 on the protruding member 104 .
- the vacuum-operated devices 130 a - b move in the direction indicated by the reference arrow 132 away from the protruding member 104 . Because the first bag 102 is held in engagement with the suction cups 134 a - b by virtue of the vacuum, the first bag is extracted from the protruding member 104 . As noted above, the small section of the bag 102 above the aperture 124 (see FIG. 5) is torn by the process of removal from the protruding member 104 . The cutting blade 110 (see FIG. 2) may be used to control the extraction process by initiating the cut in the paper just above the aperture 124 . In yet another alternative embodiment, the section of the bag 102 just above the aperture 124 may be perforated to control the tearing process as the first bag is extracted from the protruding member 104 .
- FIG. 9 illustrates the position of the vacuum-operated devices 130 a - b following the extraction of the first bag 102 from the protruding member 104 .
- the extracted bag 102 is still in the folded configuration (see FIG. 3).
- the vacuum-operated devices 130 a - b are displaced in the direction indicated by the reference arrow 138 until the vacuum-operated devices are substantially aligned with the vacuum-operated devices 150 a - b.
- the air cylinder slides 136 a and 136 b are activated to move the vacuum-operated devices 130 a - b in the direction indicated by the reference arrow 132 until the suction cups 154 a - b make contact with the second side of the extracted bag 102 . It should be noted that the vacuum-operated devices 130 a - b are still activated such that the first side (i.e., the back portion 114 b ) of extracted bag 102 is held in position by the suction cups 134 a - b .
- the suction cups 154 a - b engage and retain the second side (i.e., the front portion 114 f ) of the extracted bag 102 .
- the vacuum-operated devices 150 a - b may be activated as the vacuum-operated devices 130 a - b approach with the extracted bag 102 or after the suction cups 154 a - b make contact with the second side (i.e., the front portion 114 f ) of the extracted bag.
- the air cylinder slides 136 a - b withdraw away from the vacuum-operated devices 150 a - b in the direction indicated by the reference arrow 32 .
- the extracted bag 102 is opened into the unfolded configuration (see FIG. 4).
- the bag 102 may be opened by moving one or both of the vacuum-operated devices 130 a - b and 150 a - b away from each other.
- the vacuum-operated devices 150 a - b are held in a constant position while only the vacuum-operated devices 130 a - b move in the direction indicated by the reference arrow 132 away from the vacuum-operated devices 150 a - b . This process places the extracted bag 102 in the unfolded configuration.
- the vacuum-operated devices 150 a - b also move in the direction indicated by a reference arrow 152 away from the vacuum-operated devices 130 a - b . If both vacuum-operated devices 130 a - b and 150 a - b move approximately the same distance, the extracted bag 102 is placed in the unfolded configuration (see FIG. 4) approximately centered between the support members 142 and 162 .
- the vacuum-operated devices 130 a - b may be held in a constant position while the vacuum-operated devices 150 a - b move in a direction indicated by the reference arrow 152 away from the vacuum-operated device 130 . In any of these combinations of movement, the extracted bag 102 is placed in the unfolded configuration.
- the extracted and unfolded bag 102 is moved into position atop the conveyor belt 170 , as shown in FIG. 13. This movement is accomplished by synchronized movement of the vacuum-operated devices 130 a - b and the vacuum-operated devices 150 a - b . Specifically, the vacuum-operated devices 130 a - b move in a direction indicated by the reference arrow 138 toward the conveyor belt 170 at a predetermined rate of movement.
- the vacuum-operated devices 150 a - b move in a direction indicated by the reference arrow 158 toward the conveyor belt 170 at the same predetermined rate thus maintaining the position of the suction cups 134 a - b and 154 a - b with respect to the extracted and unfolded bag 102 .
- the unfolded bag 102 is filled in a conventional manner.
- a clamping mechanism (not shown) clamps the open bag in position on the conveyor belt 170 to permit loading.
- the open bag 102 is automatically loaded with prepackaged bags of produce using a conventional automatic loading machine (not shown).
- the process of extracting a new bag may be repeated. That is, the vacuum is deactivated so that the vacuum-operated devices 130 a - b and 150 a - b no longer support the open bag 102 .
- the vacuum-operated devices 150 a - b return to their original starting position.
- the air cylinder slides 136 a - b retract and the vacuum-operated devices 130 a - b are returned to their original position.
- the entire process is repeated to automatically extract the next bag 102 from the protruding member 104 .
- the system 100 automatically extracts a single bag from the protruding member 104 , opens the extracted bag to an unfolded configuration, and moves the extracted open bag into position on the conveyor belt 170 .
- the process of opening the extracted bag 102 into the unfolded configuration may be performed in the sequence illustrated in FIGS. 11 and 12 or the process may be reversed such that the unopened extracted bag 102 is first moved to the conveyor belt 170 and opened into the unfolded configuration.
- the process of extracting bags is automated by the system 100 thus reducing labor costs and increase efficiency.
- the protruding member 104 is sufficiently long to hold a large number (e.g., 50 ) of bags 102 .
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Abstract
An apparatus and method for automatic opening of bags uses bags in a folded configuration that include a small aperture near the top thereof. The aperture allows a number of bags to be hung in a substantially vertical orientation on an angled protruding member. A vacuum-operated device engages one side of one of the bags and extracts it from the protruding member. The bag, still in the folded configuration, is moved into position opposite a second vacuum-operated device. The second vacuum-operated device engages the extracted bag on the opposite side of the bag from the first vacuum-operated device. The second vacuum-operated device is activated and one or both of the vacuum-operated devices are moved away from each other to open the bag into an unfolded configuration. The unfolded bag may be positioned in a loading area by synchronized movement of both vacuum-operated devices.
Description
- 1. Technical Field
- The present invention is related generally to bag loading and, more particularly, to an apparatus and method for automatic bag loading.
- 2. Description of the Related Art
- Automated processes for package loading are desirable since it decreases labor costs and increases production efficiency. For example, there are known techniques for automatically loading cartons of fruit, such as apples. As noted above, automatic loading of cartons of fruit reduces labor costs and thus the cost of the finished product. In addition, production efficiency is greatly increased by such automated processing.
- Despite the desirability of automated processing, not all processes have been automated. In one example, prepackaged bags of products, such as potatoes, are placed in a large shipping bag called a bale. In one example, a bale contains five individual 10 lb. bags of potatoes. Previous attempts to automate the bale loading process have been unsuccessful. Therefore, it can be appreciated that there is a significant need for an automatic process for loading bales. The present invention provides this and other advantages as will be apparent from the following detailed description and accompanying figures.
- The present invention is embodied in an apparatus and method for bag loading. The apparatus is for use with bags having an aperture therein and comprises a protruding member sized to fit through the aperture in the bags and thereby retain the bags in a substantially vertical orientation. A first vacuum-operated device has an operating surface to engage a first one of the bags on a first side of the bag and thereby extract the first bag from the protruding member. A second vacuum-operated device has an operating surface opposed to the operating surface of the first vacuum-operated device to engage the first bag on a second side of the bag and thereby open the first bag.
- In one embodiment, the first vacuum-operated device comprises first and second vacuum-actuated suction cups to engage the first side of the first bag. The second vacuum-operated device may also comprise first and second vacuum-actuated surfaces to engage the second side of the first bag.
- The apparatus may further comprise a cutting edge associated with the protruding member to cut the first bag from the protruding member when it is extracted by the first set of vacuum-operated devices.
- The bag has a first and second ends with the second end being sealed and the first end being unsealed to permit loading of the bag when open. In this embodiment, the aperture is located proximate the first end of the bag.
- In another embodiment, the apparatus further comprises a first support member to which the first set of vacuum-operated devices are slidably mounted. In this embodiment, the first set of vacuum-operated devices extract the first bag from the protruding member and is laterally displaced along the first support member into alignment with the second set of vacuum-operated devices. The apparatus may further comprise a second support member to which the second set of vacuum-operated devices are slidably mounted. In this embodiment, the second set of vacuum-operated devices opens the first bag and the first and second sets of vacuum-operated devices are laterally displaced along the first and second support members, respectively, into alignment with a loading position to permit loading of the first bag.
- BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
- FIG. 1 is a top plan view of the inventive apparatus.
- FIG. 2 is a side view illustrating details of the inventive apparatus.
- FIG. 3 is a perspective view of a bale bag used with the inventive apparatus.
- FIG. 4 illustrates the bag of FIG. 3 in an open configuration.
- FIG. 5 is a partial enlarged front elevation view of the bag of FIG. 3.
- FIG. 6 is a top plan view illustrating the manufacture of the bag of FIG. 3.
- FIG. 7 is a side view of the inventive apparatus.
- FIG. 8 is a top plan view illustrating the apparatus in operation.
- FIG. 9 is a top plan view illustrating the extraction of a bale bag.
- FIG. 10 is a top plan view illustrating linear displacement of the extracted bag.
- FIG. 11 is a top plan view illustrating the engagement of the extracted bag to open the bag.
- FIG. 12 is a top plan view illustrating the activation of the apparatus to open the extracted bag.
- FIG. 13 is a top plan view of the inventive apparatus illustrating linear displacement of the extracted opened bag into a loading area.
- The present invention is directed to a technique that automatically extracts a bag, such as a bale bag, opens the bag, and positions the bag for loading. The present invention is embodied in a
system 100 illustrated in the top plan view of FIG. 1. As illustrated in FIG. 1, a plurality ofbags 102 are placed on a protrudingmember 104. In one embodiment, the protrudingmember 104 is a rod mounted at an upwardly projecting angle, as illustrated in FIG. 2, to permit gravity feeding of thebags 102. - FIG. 2 is a side elevational view of the protruding
member 104 illustrating its attachment to aframe 106 by amounting bracket 108. Themounting bracket 108 may be attached to theframe 106 using screws, nuts and bolts, rivets, or other known mechanical attachment components. Those skilled in the art will recognize that the protrudingmember 104 may be directly mounted to theframe 106 using well-known conventional techniques, such as welding, adhesives, or the like. The protrudingmember 104 may have arounded terminal portion 104 t to minimize the potential to damage to theaperture 124 when loading thebags 102 onto the protruding member. Therounded terminal portion 104 t also makes it easier to place thebags 102 on the protrudingmember 104. - A
cutting blade 110 is mounted at the lowest portion of the protrudingmember 104. Thecutting blade 110 may be a razor blade, knife blade, or other known device. In one embodiment, thecutting blade 110 may be mounted in a slot (not shown) in the protrudingmember 104. Thecutting blade 110 may be retained within the slot using conventional means, such as a set-screw, adhesive, or the like. As will be described in greater detail below, thecutting blade 110 is used to extract abag 102 from the protrudingmember 104. - In one embodiment, the
protruding member 104 is formed from a circular rod. Thebag 102 is similar to a conventional bale bag, but is modified for use with the automatic system of the present invention. Thebag 102 may be formed from one or more layers of brown paper. Thebag 102 is illustrated in a folded or closed configuration in FIG. 3. Thebags 102 are folded in the manner of a conventional grocery bag to permit ease in shipping and storage. Thebag 102 is shown in an unfolded or open configuration in FIG. 4. In the folded configuration, the dimensions of thebag 102 are approximately 13 inches wide by 32 inches long. When in the unfolded configuration, shown in FIG. 4, the bag has a depth of approximately 7 inches and an opening of approximately 7 inches by 13 inches. Although thebag 102 may have the standard dimensions described above, those skilled in the art will recognize that thesystem 100 can be used with bags of virtually any dimension. The only accommodation for bags of different size may be the relative location of the various components of thesystem 100. - The
bag 102 may be manufactured from a single large piece of paper, illustrated in FIG. 5, that is cut, folded into several panels or portions, and glued in a conventional manner. Thebag 102 has left andright side portions 112 l and 112 r, respectively. Thebag 102 also includes front andback portions strip 120 projects from theright side portion 112 r. Thestrip 120 is glued to theback portion 114 b when thebag 102 is formed. The left andright side portions 112 l and 112 r haveflaps 121, which are used to seal the bottom of thebag 102. Similarly, the front andback portions flaps 123 that are also used to seal and form abottom portion 116, as illustrated in FIG. 3. - Once the
bag 102 has been cut from stock material, it may be folded alongfold lines 125 to form the front andback portions right side portions 112 l and 112 r. Thestrip 120 may be glued to theback portion 114 b to seal the various portions. The bag also includes fold lines 127. Theflaps fold lines 127 to form thebottom portion 116. Theflaps 121 from the left andright side portions 112 l and 112 r are folded. Theflap 123 from thefront portion 114 f is folded and glued to theflaps 121. Finally, theflap 123 from theback portion 114 b is folded and glued to theflap 123 from thefront portion 114 f to seal thebottom portion 116 of thebag 102. In this manner, thebag 102 may be manufactured. - The
bag 102 may be formed with creases to assist in folding the bag following manufacture. As illustrated in FIG. 4, thebag 102 may include afront crease 122 f on thefront portion 114 f extending from the left side portion 112 l to theright side portion 112 r near thebottom 116 of the bag. The precise location of thecrease 122 f is typically dependent on the dimensions of the bag. For example, thecrease 122 f may be located at a distance from thebottom portion 116 that is approximately one-half of the distance between thefront portion 114 f and theback portion 114 b when the bag is in the open configuration. In addition, thebag 102 may includecreases 122 l and 122 r on the left andright side portions 112 l and 112 r, respectively. Thecrease 122 l and 122 r are located approximately midway between thefront portion 114 f and the back 114 b when the bag is in the open configuration. Thecreases 122 l and 122 r extend from thetop portion 118 to a point near thebottom portion 116. Thecreases 122 l and 122 r extend to a point approximately equal to the location of thecrease 122 f to facilitate folding of thebag 102. From the terminating point of thecreases 122 l and 122 r, additional creases extend from the midline of theside portions 112 l and 112 r to the junctions of theside portions back portions bottom portion 116 of thebag 102. - The
bag 102 also includes anaperture 124 in thetop portion 118 of theback portion 114 b. In an exemplary embodiment, theaperture 124 is approximately 0.625 inches in diameter and is located a short distance from the top of theback portion 114 b. For example, theaperture 124 may be spaced apart from the top of theback portion 114 b by approximately 0.25 inches. The short separation between theaperture 124 and the top of theback portion 114 b of thebag 102 permits the easy extraction of the bag from the protrudingmember 104. In one embodiment, thebag 102 may be removed from the protruding 104 simply by tearing theback portion 114 b at the point of narrow separation between the back portion and theaperture 124. The cutting blade 110 (see FIG. 2) may be used to slice theback portion 114 b at theaperture 124 thus preventing an undesirable tear. Alternatively, thebag 102 may include a perforated portion above the aperture to control the tearing. In this embodiment, thecutting blade 110 can be eliminated. - In the embodiment illustrated in FIGS.3-5, the
aperture 124 is circular in shape to match the cylindrical shape of the protrudingmember 104. The cylindrical shape of the protrudingmember 104 and thecircular aperture 124 permit easy loading ofbags 102 onto the protruding aperture. In addition, thebags 102 slide easily down the cylindrical protrudingmember 104. - Those skilled in the art will appreciate that the protruding
member 104 may have different shapes and that theaperture 124 may be circular or may have a shape that corresponds to the selected shape for the protruding member. For example, the protrudingmember 104 may have a semi-circular shape with a rounded portion on top and a flat portion on the bottom. Thebags 102 may still have thecircular aperture 124, as illustrated in FIGS. 3-5, or may have a shape selected to correspond to the shape of the protrudingmember 104. Other shapes, such as triangular, rectangular, or the like may also be used satisfactorily with thesystem 100. The present invention is not limited by the specific geometric form of the protrudingmember 104 or theaperture 124. - FIG. 5 is a fragmentary front elevational view of the
bag 102 illustrating the location of theaperture 124 in theback portion 114 b of the bag. Acurve cutout 126 in thefront portion 114 f of thebag 102 more fully exposes theaperture 124 in theback portion 114 b and allows easy insertion of the protrudingmember 104 through the aperture when loading the bags. Thebag 102 may also have a series of ventilation holes 129 in the front andback portions - Returning again to FIG. 1, the
system 100 also includes a set vacuum-operatedsuction devices first bag 102 from the protrudingmember 104. Thebags 102 are extracted from the protrudingmember 104 in the same sequence in which they are placed on the protruding member (i.e., first on-first off). As illustrated in FIG. 1, the vacuum-operated devices 130 a-b have a terminal vacuum-operatedsuction cup bag 102, the bag is retained by virtue of the vacuum-operated suction cups 134 a-b. The vacuum-operated devices 130 a-b are mounted on air cylinder slides 136 a and 136 b, respectively. The air cylinder slides 136 b move in a direction indicated by areference arrow 132 to allow the suction cups 134 a-b to engage a first of thebags 102 on the protrudingmember 104. The vacuum operated devices 130 a-b may be positioned to engage thebag 102 at any desirable position. In an exemplary embodiment, the suction cups 134 a-b engage a first side of thebag 102 on theback portion 114 b (see FIG. 4) near thetop portion 118 at a distance of approximately 1.5-2 inches in from the left andright sides 112 l and 112 r, respectively. - The vacuum-operated devices130 a-b generate sufficient vacuum to engage a bag on the protruding
member 104, extract the bag and support the weight of the bag. The precise vacuum level is not critical, but must be sufficiently strong to perform the tasks outlined above. A vacuum may be readily generated using Venturi devices in which air is passed over the open end of a tube in order to create a suction at a distal end of the tube. In thesystem 100, the vacuum-operated devices 130 a-b are commercial products available from Vaccon Vacuum Generator. - In the embodiment illustrated in FIG. 1, a pair of vacuum-operated devices130 a-b are used to support the
bag 102. The use of dual vacuum-operated devices provides greater stability and relatively uniform extraction pressure on thebag 102 on both sides of protrudingmember 104 such that the bag is drawn smoothly against thecutting blade 110. Additional vacuum-operated devices may be used to provide additional stability or if the size of thebag 102 warrants extra support. However, if thebag 102 is relatively small, a single vacuum-operated device may be sufficient to extract the bag from the protrudingmember 104. Thus, thesystem 100 is not limited by the number or specific layout of the vacuum-operated devices used to extract thebag 102 from the protrudingmember 104. - In operation, the air cylinder slides136 a-b and the vacuum-operated devices 130 a-b move in the direction indicated by the
reference arrow 132 to engage thebag 102 on the protrudingmember 104. Upon contact with thebag 102, the suction cups 134 a-b engage a first side of the bag (i.e., theback portion 114 b) and retain the bag. As the air cylinder slides 136 a-b and the vacuum-operated devices 130 a-b move away from the protrudingmember 104 in the direction indicated by thereference arrow 132, asingle bag 102 is extracted from the protruding member and held in position by virtue of the suction cups 134 a-b. Thus, thesystem 100 is capable of automatically extracting asingle bag 102 from the protrudingmember 104. As the vacuum-operated device 130 moves away from the protruding member in the direction indicated by thereference arrow 132, thecutting blade 110 slices through a portion of thebag 102 to allow its easy removal from the protruding member. - The use of air cylinder slides, such as the air cylinder slides136 a-b is well known in the art and need not be described in greater detail herein. Alternatively, the vacuum devices 130 a-b may be moved back and forth in the direction indicated by the
reference arrow 132 through other known techniques, such as stepper motors, servo motors, drive chains, belts, or the like. Thesystem 100 is not limited by the specific technique used to move the vacuum-operated devices 130 a-b in the direction indicated by thereference arrow 132. - In addition to movement in the direction indicated by the
reference arrow 132, the vacuum-operated devices 130 a-b are capable of moving in the direction indicated by areference arrow 138. To permit this movement, the vacuum-operated devices 130 a-b are coupled torespective support brackets support member 142. Movement of the support brackets 140 a-b and thus the vacuum-operated devices 130 a-b in the direction indicated by thereference arrow 138 is controlled by a stepper motor (not shown). In an exemplary embodiment, the vacuum-operateddevices reference arrow 138. The vacuum-operated devices 130 a-b may be locked together and controlled by a single stepper motor. Alternatively, the vacuum-operateddevices - The positioning of the vacuum-operated devices130 a-b can be precisely controlled with stepper motors. Signals to control the operation of the stepper motors are generated by a conventional computer (not shown), such as a personal computer (PC), a single board microcomputer, microcontroller, or the like. Displacement of the vacuum-operated devices 130 a-b is precisely controlled by the number of pulses provided to the stepper motor. Alternatively, the stepper motor may be replaced by other conventional drive means, such as air cylinder slides, servo motors, chain drives, belt drives, screw drives, and the like. Drive mechanisms, such as chain drives, may use position sensing microswitches (not shown) to control movement of the vacuum-operated devices 130 a-b in the direction indicated by the
reference arrow 138. Use of such position sensing devices are well known in the art and need not be described in greater detail herein. - The
system 100 has a second pair of vacuum-operateddevices suction cup bag 102 that has been previously been extracted by the vacuum-operated devices 130 a-b. As previously described, the vacuum-operated devices 130 a-b move in the direction indicated by thereference 132 until the suction cups 134 a-b engage asingle bag 102 on a first side of the bag (i.e., theback portion 114 b). The vacuum may be activated as the air cylinder slides 136 a-b are activated such that a vacuum is established before the suctions cups 134 a-b make contact with thebag 102. Alternatively, the vacuum can be established as the suction cups 134 a-b approach thebag 102. The vacuum is activated such that the suction cups 134 a-b engage the first side of thebag 102. As the vacuum-operated devices 130 a-b move away from thebags 102 in the direction indicated by thereference arrow 132, a single bag is extracted from the protrudingmember 104. - Following extraction of a single bag, the vacuum-operated devices130 a-b move in a direction indicated by the
reference arrow 138 until the vacuum-operated devices are substantially aligned with the vacuum-operated devices 150 a-b. The vacuum-operated devices 130 a-b move in the direction indicated by thereference arrow 132 toward the vacuum-operated devices 150 a-b until the suction cups 154 a-b engage the second side of the bag 102 (i.e., thefront portion 114 f) opposite the vacuum-operated devices 130 a-b. The vacuum-operated devices 150 a-b are positioned to engage thefront portion 114 f of thebag 102 on the opposite side of the bag from the vacuum-operated devices 130 a-b. - When the suction cups154 a-b have engaged the second side of the back of the extracted
bag 102, the vacuum may be activated and the vacuum-operated devices 130 a-b moved in a direction indicated by thereference arrow 132 away from the vacuum-operated devices 150 a-b to thereby unfold the bag. Alternatively, the vacuum for the vacuum-operated devices 150 a-b may be activated as the extractedbag 102 approaches. The precise moment of activation of the vacuum-operated devices 150 a-b is not critical to satisfactory operation of thesystem 100. - It should be noted that the vacuum-operated devices150 a-b are not mounted on air cylinder slides, such as the air cylinder slides 136 a-b used to move the vacuum-operated devices 130 a-b in the direction indicated by the
reference arrow 132. The construction and operation of thesystem 100 are simplified by fixing the position of the vacuum-operated devices 150 a-b so that no movement occurs in the direction indicated by thereference arrow 132. Such an arrangement simplifies thesystem 100 by eliminating need for air cylinder slides and the associated measurement and control circuitry. However, if thesystem 100 is installed in a location that limits the movement of the vacuum-operated devices 130 a-b in the direction indicated by thereference arrow 132, it is possible to mount the vacuum-operated devices 150 a-b on air cylinder slides to permit movement in the direction indicated by thereference arrow 132. In this embodiment, both sets of vacuum-operated devices (i e., the vacuum-operated devices 130 a-b and 150 a-b) are positioned on air cylinder slides (e.g., the air cylinder slides 136 a-b). - The vacuum-operated devices150 a-b are also capable of movement in a second direction indicated by the
reference arrow 158. The vacuum-operated devices 150 a-b are coupled to supportbrackets support member 162 to permit movement in the direction indicated by thereference arrow 158. Movement of the vacuum-operated devices 150 a-b in the direction indicated by thereference arrow 158 is controlled by stepper motors. As discussed above with respect to the vacuum-operated devices 130 a-b, a single stepper motor may be sufficient to move both vacuum-operated devices 150 a-b. In this embodiment, the vacuum-operated devices 150 a-b are coupled together for movement controlled by the single stepper motor. Alternatively, a stepper motor may be associated with each of the vacuum-operateddevices reference arrow 158 may be controlled by other conventional techniques, such as servo motors, air cylinder slides, chain drive, belt drive, screw drive, and the like. The present invention is not limited by the specific form of the drive mechanism used to control movement of the vacuum-operated devices 150 a-b in the direction indicated by thereference arrow 158. - Following engagement of the front and
back portions bag 102, the vacuum-operated devices 130 a-b and the vacuum-operated devices 150 a-b move in synchronization in the direction indicated by thereference arrows bag 102 is moved into position at aconveyor belt 170 where the bag may be loaded. Conventional devices are used to automatically load the openedbag 102. A set of clamps (not shown) attached to the top of theside portions 122 l and 122 r stabilize and retain thebag 102 while it is being loaded. As the product (e.g., individual bags of potatoes) are loaded into the openedbag 102, thebottom 116 of the bag rests on theconveyor belt 170. After the products have been loaded into thebag 102, the side clamps (not shown) release and theconveyer belt 170 is activated to move the loadedbag 102 out of the loading area. - It should be noted that the sequence of opening the bag and moving the bag to the
conveyor belt 170 may be performed interchangeably. That is, the extractedbag 102 may be unfolded and subsequently moved to theconveyor belt 170, as described above. Alternatively, the extractedbag 102 may be moved to theconveyor belt 170 while still in the folded configuration (see FIG. 3). Thebag 102 may be subsequently opened into the unfolded configuration (see FIG. 4) after arrival at theconveyor belt 170. Thus, the present invention is not limited by the specific sequence of these two events. - FIG. 7 is a side view of the
system 100. As best seen in FIG. 7, the vacuum-operated devices 130 a-b and 150 a-b are mounted at approximately the same height, but facing towards each other. As previously discussed, the vacuum-operated devices 130 a-b and 150 a-b are coupled to supportmembers support members support members channel 174. The mounting bracket 140 is inserted in thechannel 174 of thesupport member 142 such that the vacuum-operated devices 130 a-b may move smoothly along the channel in a direction indicated by the reference arrow 138 (see FIG. 1). Similarly, the support bracket 160 is inserted into thechannel 174 of thesupport member 162 to permit the vacuum-operated devices 150 a-b to move easily along the channel in the direction indicated by the reference arrow 158 (see FIG. 1). - FIGS.7-12 are top plan views of the
system 100 illustrating the positioning of the vacuum-operated devices 130 a-b and 150 a-b at different stages of the process. In FIG. 8, the vacuum-operated devices 130 a-b advance in the direction indicated by thereference arrow 132 until the suction cups 134 a-b make contact with thefirst bag 102 on the protrudingmember 104. It should be noted that the vacuum device may be continuously activated at this step or may be activated at any point before contacting thebag 102 or at the time of contact of the bag. When the vacuum is activated, the suction cups 134 a-b engage and retain thefirst bag 102 on the protrudingmember 104. - In FIG. 9, the vacuum-operated devices130 a-b move in the direction indicated by the
reference arrow 132 away from the protrudingmember 104. Because thefirst bag 102 is held in engagement with the suction cups 134 a-b by virtue of the vacuum, the first bag is extracted from the protrudingmember 104. As noted above, the small section of thebag 102 above the aperture 124 (see FIG. 5) is torn by the process of removal from the protrudingmember 104. The cutting blade 110 (see FIG. 2) may be used to control the extraction process by initiating the cut in the paper just above theaperture 124. In yet another alternative embodiment, the section of thebag 102 just above theaperture 124 may be perforated to control the tearing process as the first bag is extracted from the protrudingmember 104. - FIG. 9 illustrates the position of the vacuum-operated devices130 a-b following the extraction of the
first bag 102 from the protrudingmember 104. At this point, the extractedbag 102 is still in the folded configuration (see FIG. 3). In FIG. 10, the vacuum-operated devices 130 a-b are displaced in the direction indicated by thereference arrow 138 until the vacuum-operated devices are substantially aligned with the vacuum-operated devices 150 a-b. - In FIG. 11, the air cylinder slides136 a and 136 b are activated to move the vacuum-operated devices 130 a-b in the direction indicated by the
reference arrow 132 until the suction cups 154 a-b make contact with the second side of the extractedbag 102. It should be noted that the vacuum-operated devices 130 a-b are still activated such that the first side (i.e., theback portion 114 b) of extractedbag 102 is held in position by the suction cups 134 a-b. When the vacuum-operated devices 150 a-b are activated, the suction cups 154 a-b engage and retain the second side (i.e., thefront portion 114 f) of the extractedbag 102. As noted above with respect to the vacuum-operated devices 130 a-b, the vacuum-operated devices 150 a-b may be activated as the vacuum-operated devices 130 a-b approach with the extractedbag 102 or after the suction cups 154 a-b make contact with the second side (i.e., thefront portion 114 f) of the extracted bag. - In FIG. 12, the air cylinder slides136 a-b withdraw away from the vacuum-operated devices 150 a-b in the direction indicated by the reference arrow 32. As the vacuum-operated devices 130 a-b move away from the vacuum-operated devices 150 a-b, the extracted
bag 102 is opened into the unfolded configuration (see FIG. 4). Thebag 102 may be opened by moving one or both of the vacuum-operated devices 130 a-b and 150 a-b away from each other. In an exemplary embodiment, the vacuum-operated devices 150 a-b are held in a constant position while only the vacuum-operated devices 130 a-b move in the direction indicated by thereference arrow 132 away from the vacuum-operated devices 150 a-b. This process places the extractedbag 102 in the unfolded configuration. - Alternatively, the vacuum-operated devices150 a-b also move in the direction indicated by a
reference arrow 152 away from the vacuum-operated devices 130 a-b. If both vacuum-operated devices 130 a-b and 150 a-b move approximately the same distance, the extractedbag 102 is placed in the unfolded configuration (see FIG. 4) approximately centered between thesupport members reference arrow 152 away from the vacuum-operated device 130. In any of these combinations of movement, the extractedbag 102 is placed in the unfolded configuration. - The extracted and unfolded
bag 102 is moved into position atop theconveyor belt 170, as shown in FIG. 13. This movement is accomplished by synchronized movement of the vacuum-operated devices 130 a-b and the vacuum-operated devices 150 a-b. Specifically, the vacuum-operated devices 130 a-b move in a direction indicated by thereference arrow 138 toward theconveyor belt 170 at a predetermined rate of movement. At the same time, the vacuum-operated devices 150 a-b move in a direction indicated by thereference arrow 158 toward theconveyor belt 170 at the same predetermined rate thus maintaining the position of the suction cups 134 a-b and 154 a-b with respect to the extracted and unfoldedbag 102. While at theconveyor belt 170, the unfoldedbag 102 is filled in a conventional manner. As previously discussed, a clamping mechanism (not shown) clamps the open bag in position on theconveyor belt 170 to permit loading. Theopen bag 102 is automatically loaded with prepackaged bags of produce using a conventional automatic loading machine (not shown). - One the clamps (not shown) have been activated to secure the
open bag 102, the process of extracting a new bag may be repeated. That is, the vacuum is deactivated so that the vacuum-operated devices 130 a-b and 150 a-b no longer support theopen bag 102. The vacuum-operated devices 150 a-b return to their original starting position. The air cylinder slides 136 a-b retract and the vacuum-operated devices 130 a-b are returned to their original position. The entire process is repeated to automatically extract thenext bag 102 from the protrudingmember 104. - Thus, the
system 100 automatically extracts a single bag from the protrudingmember 104, opens the extracted bag to an unfolded configuration, and moves the extracted open bag into position on theconveyor belt 170. As previously noted, it is possible to move the extractedbag 102 into position above theconveyor belt 170 before opening the bag. That is, the process of opening the extractedbag 102 into the unfolded configuration (see FIG. 4) may be performed in the sequence illustrated in FIGS. 11 and 12 or the process may be reversed such that the unopened extractedbag 102 is first moved to theconveyor belt 170 and opened into the unfolded configuration. In either event, the process of extracting bags is automated by thesystem 100 thus reducing labor costs and increase efficiency. In an exemplary embodiment, the protrudingmember 104 is sufficiently long to hold a large number (e.g., 50) ofbags 102. - It is to be understood that even though various embodiments and advantages of the present invention have been set forth in the foregoing description, the above disclosure is illustrative only, and changes may be made in detail, yet remain within the broad principles of the invention. Therefore, the present invention is to be limited only by the appended claims.
Claims (24)
1. A bag loading apparatus for use with bags having an aperture therein, comprising:
a protruding member sized to fit through the aperture in the bags and thereby retain the bags in a substantially vertical orientation;
a first vacuum-operated device having an operating surface to engage a first one of the bags on a first side of the bag and thereby extract the first bag from the protruding member; and
a second vacuum-operated device having an operating surface opposed to the operating surface of the first vacuum-operated device to engage the first bag on a second side of the bag and thereby open the first bag.
2. The apparatus of claim 1 wherein the first vacuum-operated device operating surface comprises first and second suction cups to engage the first side of the first bag.
3. The apparatus of claim 1 wherein the second vacuum-operated device operating surface comprises first and second suction cups to engage the second side of the first bag.
4. The apparatus of claim 1 wherein the protruding member is cylindrical.
5. The apparatus of claim 1 wherein the protruding member projects at an upward orientation.
6. The apparatus of claim 1 , further comprising a cutting edge associated with the protruding member to cut the first bag from the protruding member.
7. The apparatus of claim 1 wherein the first vacuum-operated device is moveably mounted to permit movement toward the first side of the first bag and thereby permit engagement of the first side of the first bag by the first vacuum-operated device operating surface.
8. The apparatus of claim 1 wherein the first vacuum-operated device is moveably mounted to permit movement toward the second vacuum-operated device and thereby permit engagement of the second side of the first bag by the second vacuum-operated device operating surface.
9. The apparatus of claim 1 , further comprising a first support member to which the first vacuum-operated device is moveably mounted wherein the first vacuum-operated device extracts the first bag from the protruding member and is laterally displaced along the first support member into alignment with the second vacuum-operated device.
10. The apparatus of claim 9 , further comprising a second support member to which the second vacuum-operated device is slidably mounted wherein the second vacuum-operated device opens the first bag and the first and second vacuum-operated devices are laterally displaced along the first and second support members, respectively, into alignment with a loading position to permit loading of the first bag.
11. The apparatus of claim 1 wherein the bags each have first and second ends with the second end being sealed and the first end being unsealed to permit loading of the bag when open, the aperture being located proximate the first end of the bag.
12. The apparatus of claim 1 wherein the bags each have first and second ends with the second end being sealed and the first end being unsealed to permit loading of the bag when open, the aperture being located proximate the first end of the bag.
13. A method for automatically loading a bag for use with bags having an aperture therein, comprising:
hanging the bags on a protruding member sized to fit through the aperture in the bags;
engaging a first one of the bags on a first side of the bag and thereby extracting the first bag from the protruding member;
engaging the first bag on a second side of the bag and thereby opening the first bag; and
loading the open first bag.
14. The method of claim 13 wherein engaging the first bag comprises activating a first vacuum-operated device to engage the first side of the first bag and thereby extract the first bag from the protruding member.
15. The method of claim 14 wherein activating the first vacuum-operated device comprises activating first and second suction cups to engage the first side of the first bag.
16. The method of claim 13 wherein engaging the second side of the first bag comprises activating a second vacuum-operated device to engage the second side of the first bag.
17. The method of claim 16 wherein activating the second vacuum-operated device comprises activating first and second suction cups to engage the second side of the first bag.
18. The method of claim 13 wherein extracting the first bag comprises using a cutting edge to cut through a portion of the first bag and thereby extract the first bag from the protruding member.
19. The method of claim 13 engaging the first side of the first bag comprises moving a first vacuum-operated device toward the first side of the first bag and thereby permit engagement of the first side of the first bag by the first vacuum-operated device.
20. The method of claim 13 extracting first bag comprises moving a first vacuum-operated device away from the first side of the first bag following engagement of the first side of the first bag by the first vacuum-operated device to thereby extract the first bag from the protruding member.
21. The method of claim 13 wherein engaging the second side of the first bag comprises moving a first vacuum-operated device, in engagement with the first side of the extracted first bag, toward a second vacuum-operated device to thereby permit engagement of the second side of the first bag by the second vacuum-operated device.
22. The method of claim 13 wherein engaging the second side of the first bag comprises moving the extracted first bag, in engagement with a first vacuum-operated device, into alignment with a second vacuum-operated device to permit engagement of the second side of the first bag by the second vacuum-operated device.
23. The method of claim 13 wherein opening the first bag comprises moving a first vacuum-operated device, in engagement with the first side of the extracted first bag, away from a second vacuum-operated device, in engagement with the second side of the extracted first bag, to thereby open the first bag.
24. The method of claim 13 wherein loading the open first bag comprises moving the extracted first bag, in engagement with a first vacuum-operated device on the first side and in engagement with a second vacuum-operated device on the second side into a loading position.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/905,409 US20030009990A1 (en) | 2001-07-13 | 2001-07-13 | Apparatus and method for automatic bag loading |
CA002393185A CA2393185A1 (en) | 2001-07-13 | 2002-07-12 | Apparatus and method for automatic bag loading |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/905,409 US20030009990A1 (en) | 2001-07-13 | 2001-07-13 | Apparatus and method for automatic bag loading |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030009990A1 true US20030009990A1 (en) | 2003-01-16 |
Family
ID=25420763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/905,409 Abandoned US20030009990A1 (en) | 2001-07-13 | 2001-07-13 | Apparatus and method for automatic bag loading |
Country Status (2)
Country | Link |
---|---|
US (1) | US20030009990A1 (en) |
CA (1) | CA2393185A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080073836A1 (en) * | 2006-09-26 | 2008-03-27 | Curwood, Inc. | Taped bag feeder |
US20100143352A1 (en) * | 2003-06-05 | 2010-06-10 | Genentech, Inc. | Combination therapy for b cell disorders |
EP2555983A1 (en) * | 2010-04-08 | 2013-02-13 | Kee Plastics AB | Device and method for opening a piping bag |
CN104760329A (en) * | 2015-04-03 | 2015-07-08 | 汕头轻工装备研究院 | Bagging mechanism for folding equipment of packing bag |
US20150367976A1 (en) * | 2014-06-23 | 2015-12-24 | Msk- Verpackungs-Systeme Gmbh | Opening apparatus and method for opening a gusseted tube which is fed in, in particular from a tube supply, in a state, in which it is folded together flatly |
CN105984617A (en) * | 2015-02-12 | 2016-10-05 | 佛山市康的智能机械设备有限公司 | Full-automatic bag-feeding packaging machine |
CN106264617A (en) * | 2015-06-10 | 2017-01-04 | 李凯 | Ultrasonic probe inside cavity set is installed and withdrawer |
CN106515035A (en) * | 2016-12-04 | 2017-03-22 | 广东华隆文具有限公司 | Technical method and manufacturing device for pin penetrating production of card holder |
CN107600540A (en) * | 2017-10-02 | 2018-01-19 | 孙少光 | Packing machine send a bag bag openning body |
CN111169712A (en) * | 2020-01-20 | 2020-05-19 | 杭州凤谊纺织有限公司 | Automatic bagging device for vortex spinning |
CN111605800A (en) * | 2020-06-18 | 2020-09-01 | 漳州佳龙科技股份有限公司 | Full-automatic bag feeding machine and working method thereof |
CN111846422A (en) * | 2020-07-14 | 2020-10-30 | 郑州维普斯机械设备有限公司 | Automatic mouth opening device for dry towel and wet towel packaging bags |
US11566284B2 (en) | 2016-08-10 | 2023-01-31 | Grail, Llc | Methods of preparing dual-indexed DNA libraries for bisulfite conversion sequencing |
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TWI654120B (en) * | 2017-03-06 | 2019-03-21 | 威光自動化科技股份有限公司 | Method and device for automatically moving plastic bag and opening plastic bag opening |
CN111232309B (en) * | 2019-06-28 | 2024-01-09 | 青岛海科佳智能科技股份有限公司 | Double-station paper Bao Ping pocket intelligent bagging machine |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100143352A1 (en) * | 2003-06-05 | 2010-06-10 | Genentech, Inc. | Combination therapy for b cell disorders |
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US9446872B2 (en) | 2010-04-08 | 2016-09-20 | Kee Plastics Ab | Device and method for opening a plurality of piping bags |
EP2555983A1 (en) * | 2010-04-08 | 2013-02-13 | Kee Plastics AB | Device and method for opening a piping bag |
EP2555983A4 (en) * | 2010-04-08 | 2013-11-06 | Kee Plastics Ab | Device and method for opening a piping bag |
US10138013B2 (en) * | 2014-06-23 | 2018-11-27 | MSK—Verpackungs-Systeme GmbH | Opening apparatus and method for opening gusseted tube fed from tube supply in folded state |
US20150367976A1 (en) * | 2014-06-23 | 2015-12-24 | Msk- Verpackungs-Systeme Gmbh | Opening apparatus and method for opening a gusseted tube which is fed in, in particular from a tube supply, in a state, in which it is folded together flatly |
CN105984617A (en) * | 2015-02-12 | 2016-10-05 | 佛山市康的智能机械设备有限公司 | Full-automatic bag-feeding packaging machine |
CN104760329A (en) * | 2015-04-03 | 2015-07-08 | 汕头轻工装备研究院 | Bagging mechanism for folding equipment of packing bag |
CN106264617A (en) * | 2015-06-10 | 2017-01-04 | 李凯 | Ultrasonic probe inside cavity set is installed and withdrawer |
US11566284B2 (en) | 2016-08-10 | 2023-01-31 | Grail, Llc | Methods of preparing dual-indexed DNA libraries for bisulfite conversion sequencing |
CN106515035A (en) * | 2016-12-04 | 2017-03-22 | 广东华隆文具有限公司 | Technical method and manufacturing device for pin penetrating production of card holder |
CN107600540A (en) * | 2017-10-02 | 2018-01-19 | 孙少光 | Packing machine send a bag bag openning body |
CN111169712A (en) * | 2020-01-20 | 2020-05-19 | 杭州凤谊纺织有限公司 | Automatic bagging device for vortex spinning |
CN111605800A (en) * | 2020-06-18 | 2020-09-01 | 漳州佳龙科技股份有限公司 | Full-automatic bag feeding machine and working method thereof |
CN111846422A (en) * | 2020-07-14 | 2020-10-30 | 郑州维普斯机械设备有限公司 | Automatic mouth opening device for dry towel and wet towel packaging bags |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: YAKIMA PACKAGING AUTOMATION, INC., WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAIN, TIMOTHY B.;GERMUNSON, GARY G.;REEL/FRAME:011997/0353 Effective date: 20010713 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |