JP5844077B2 - Cutting device and article bagging device - Google Patents

Description

  The present invention relates to an article bagging apparatus that opens an opening of a bag body, puts an article into the bag body, and further closes the opening of the bag body, and a cutting apparatus that cuts a flap from a side edge of the bag body.

  FIG. 13 illustrates the outline of the manufacturing process of the bag 301. That is, the film 303 made of polypropylene or polyethylene is run in the direction of the arrow w, and the film 303 is melted in the running direction while the edges 305 and 307 of the film 303 are folded back to the inner surface 309 of the film 303. A side edge 311 of the bag body 301 is formed. The edge 305 and the inner surface 309 of the film 303 facing each other form an opening 313 extending in the width direction. The width direction of the bag body 301 matches the traveling direction of the film 303 pointed by the arrow w. An edge 307 of the film 303 forms a flap 315 that is folded over the opening 313, and the fold 317 is welded to the inner surface 309. A portion extending from the opening 313 of the bag body 301 to the opposite side of the fold line 317 is a header 319.

  In the process of fusing the film 303 as described above, the flap 315 is welded to the side edge 311 of the bag body 301. This is preferable from the viewpoint of preventing the flap 315 from being unintentionally opened and folded when a large number of bag bodies 301 are stacked and stored in the distribution box. However, when inserting an article into the bag 301, the operation of separating the flap 315 from the side edge 311 of the bag 301 and widening the opening 313 of the bag 301 so that the article can be inserted into the bag 301 is extremely complicated. It is.

  The dots in the drawing represent the adhesive portion 321 formed on the back surface facing the opening 313 of the flap 315 on the assumption that the flap 315 is transparent. In order to add the adhesive portion 321 to the bag body 301, an adhesive may be attached to an appropriate position of the film 303 before the edge portions 305 and 307 of the film 303 are folded back as described above. A liner not shown in the figure is superimposed on the back surface of the flap 315. The liner is a release film that is approximately the same size as the flap 315. The side near the fold line 317 on the back surface of the flap 315 is a blank without the adhesive portion 321. The header 319 may be provided with a through hole 323 such as a hook.

  Patent Documents 1 and 2 disclose a technique in which an opening of a bag body is directed upward and an article is put into the bag body.

JP-A-8-133236 JP 2000-238705 A

  An object of the present invention is to provide a cutting device that contributes to simplification of a process of cutting off a flap from an edge of a bag body and inserting an article into the bag body, and shortening the time, and an article bagging apparatus. There is.

  The present invention holds a bag body in which a header is extended from an opening extending in the width direction and a flap is folded over the opening so that the opening faces upward, and the opening and flap of the bag are A pair of cutters having cutting edges are inserted between the pair of cutters, and the pair of cutters are operated in opposite directions so that the cutting edges of the pair of cutters protrude outward in the width direction of the bag body, respectively. Features.

Further, the present invention provides a header holding means for holding the header in a posture in which the header extends from the opening extending in the width direction and the flap is folded over the opening so that the opening faces upward. ,
A cutting edge is disposed between a pair of support shafts arranged below the flap of the bag body holding the header on the header holding means and having the shaft end opposed to the bag body, and the opening and flap of the bag body And a drive source for rotating the pair of support shafts in a direction in which the cutting edges of the pair of cutters protrude outward in the width direction of the bag body from below the flap. It is characterized by.

  Further, the present invention is characterized in that a flap blowing means for injecting an air current is provided between the opening of the bag body holding the header by the header holding means and the flap.

  Further, according to the present invention, a bag body in which a header is extended from an opening portion extending in the width direction and a flap is folded over the opening portion is erected by the erection unit and the erection unit. A pair of cutters having cutting edges are inserted between a header holding means for holding the header of the bag body, and an opening and a flap of the bag body held by the header holding means, and the cutting edges of the pair of cutters are Cutting means for operating the pair of cutters in opposite directions so as to protrude outward in the width direction of the bag body, and above the opening of the bag body holding the header by the header holding means Bag opening means for pushing up the flap, flap holding means for holding the flap pushed up by the bag opening means above the opening of the bag body, and the header holding A loading means for loading an article into the opening of the bag body holding the header in a step, and a bag closing means for folding the flap over the opening of the bag body loaded with the article. .

  In the present invention, the cutting means is disposed below a flap of a bag body holding the header by the header holding means, and a pair of support shafts whose shaft ends are opposed to the bag body; And a drive source for rotating the pair of support shafts in a direction in which a cutting edge of the cutter protrudes outward in the width direction of the bag body from below the flap.

  Further, according to the present invention, the bag opening means is joined to the flap of the bag body holding the header by the header holding means, the push-up member contacting from the lower side, and the push-up member joined to the output shaft of the rotating machine. And a push-up means for turning the push-up member in the ascending direction about the output shaft.

  According to the cutting device of the present invention, a pair of cutters is inserted between the opening of the bag body with the opening facing upward and the flap, and the cutting edges of the pair of cutters are respectively outside the width direction of the bag body. The pair of cutters can be operated in directions opposite to each other so as to protrude in the direction. For this reason, since the cutting device according to the present invention can instantly separate both the flaps by the pair of cutters even if the flap is welded to the side edge of the bag body in the manufacturing process of the bag body, the article is put into the bag body. The operation of opening the opening of the bag body can be easily performed before. In addition, the pair of cutters that rotate as described above cross the side edge of the bag body outwardly and detach from the gap between the opening of the bag body and the flap. As described above, the cutting device according to the present invention has an advantage that the operation of the cutter is simple and the control thereof can be easily performed.

  Further, according to the cutting device of the present invention, the flap blowing means injects an air current between the opening portion of the bag body in the posture in which the header is held by the header holding means and the opening portion faces upward, and the flap. As a result, the gap between the opening of the bag body and the flap can be positively opened, so that when the cutter rotates, the gap between the opening of the bag body and the flap is prevented. Can be prevented.

  According to the article bagging apparatus according to the present invention, the standing means is erected so that the opening portion of the bag placed on the belt conveyor or the like faces upward, and the effect of the cutting apparatus can be achieved. Moreover, according to the article bagging apparatus of the present invention, immediately after the flap is cut off from the side edge of the bag body, the bag opening means pushes up the flap above the opening of the bag body, and the flap holding means holds the flap. The bag is held above the opening, the loading means puts the article into the opening of the bag, and the bag closing means closes the opening of the bag by folding the flap over the opening of the bag. After that, the header of the bag can be detached from the header holding means so that the bag can be carried out elsewhere. The article bagging apparatus according to the present invention can perform such a series of steps without human intervention.

  Further, according to the article bagging apparatus according to the present invention, the bag opening means contacts the push-up member from the lower side to the flap of the bag body in which the header is held by the header holding means. The push-up member is turned around the output shaft in the upward direction. Accordingly, the flap can be deflected above the opening, and the opening of the opening can be forced before the article is charged by the loading means.

The top view which shows the outline of the goods bagging apparatus which concerns on embodiment of this invention. The perspective view of the standing means applied to the goods bagging apparatus which concerns on embodiment of this invention. (A) is a top view of the principal part of the transfer means applied to the goods bagging apparatus which concerns on embodiment of this invention, (b) is the side view. (A) is a top view which shows the support structure of the header holding | maintenance means applied to the goods bagging apparatus which concerns on embodiment of this invention, and a flap holding | maintenance means, (b) is the front view. (A) is the X1-X1 sectional view taken on the line of FIG.4 (b), (b) is the X2-X2 sectional view taken on the line of FIG.4 (b). The perspective view of the cutting | disconnection means applied to the goods bagging apparatus which concerns on embodiment of this invention, and a bag opening means. The side view explaining operation | movement of the cutting means applied to the goods bagging apparatus which concerns on embodiment of this invention, and a bag opening means. The front view explaining operation | movement of the cutting device which concerns on embodiment of this invention. The perspective view of the peeling means applied to the goods bagging apparatus which concerns on embodiment of this invention. The side view explaining operation | movement of the peeling means applied to the goods bagging apparatus which concerns on embodiment of this invention. The perspective view of the bag closing means applied to the goods bagging apparatus which concerns on embodiment of this invention. The side view explaining operation | movement of the bag closing means applied to the goods bagging apparatus which concerns on embodiment of this invention. The perspective view explaining the manufacturing process of a bag.

  The bag described below is the same as that already described as the background art, and the same designation is used continuously regardless of whether or not it is shown. As shown in FIG. 1, an article bagging apparatus 1 according to an embodiment of the present invention includes an upright means 3, a plurality of header holding means 5, a cutting means 7, a bag opening means 9, and a plurality of flap holding means. 11, a charging means 13, a peeling means 15, and a bag closing means 17. A belt conveyor is used as carry-in means 21 for carrying the bag 19 into the article bagging apparatus 1, supply means 25 for feeding the article 23 to the loading means 13, and carry-out means 27 for carrying the bag 19 out of the article bagging apparatus 1. A roller conveyor, a chute or the like may be applied, and these are not elements that characterize the article bagging apparatus 1.

  The erection means 3 erects the bag body 19 carried in by the carrying-in means 21 so that the opening thereof faces upward. The plurality of header holding means 5 and the cutting means 7 constitute a cutting device 29 according to the embodiment of the present invention. The header holding means 5 holds the header 31 in a posture in which the bag body 19 is raised as described above. The bag opening means 9 pushes up the opening of the bag body 19 in which the header 31 is held by the header holding means 5. The flap holding means 11 holds the flap 33 of the bag body 19 pushed up by the bag opening means 9 above the opening of the bag body 19. The cutting means 7 separates the flap 33 from the side edge 35 of the bag body 19. The bag closing means 17 folds the flap 33 on the opening of the bag body 19 into which the article 23 is put.

  The embodiment of the present invention is based on the premise that an adhesive portion is formed on the flap 33 of the bag body 19, but the adhesive portion and the peeling means described below for peeling the liner from the adhesive portion are essential to the present invention. It is not an element. Further, the drawings refer to FIG. 1 unless otherwise specified, and the elements of the article bagging apparatus 1 shown in FIG. 1 are supported by a casing 37 or a bottom plate 39.

  As shown in FIG. 2, the standing means 3 includes an electric motor 41 supported by a column or the like rising from the bottom plate 39, a rodless air cylinder 47 that is joined to the operating rod 43 of the electric motor 41 and moves the slider 45 in the longitudinal direction, A rotating machine 51 attached to the slider 45 via a holding plate 49, a turning arm 55 attached to the output shaft 53 of the rotating machine 51, and three suction pads 57 suspended from the turning arm 55 are provided.

  The electric motor 41 includes a case 59 with a screw mechanism that moves the operating rod 43 up and down using a motor as a driving force. Reference numeral 61 indicates a guide rail. The suction pad 57 is a cup-shaped elastic body to which negative pressure is supplied to the inside through a hollow shaft portion 63 from a vacuum line installed in a factory or the like. The rotating machine 51 rotates the output shaft 53 in a range of 90 ° so that the swing arm 55 falls horizontally as shown in the drawing or stands upright. Reference numeral 65 indicates a stopper for positioning the swivel arm 55 horizontally.

  The header holding means 5 and the flap holding means 11 are supported by the turn plate 69 of the transfer means 67. The standing means 3, the cutting means 7, the feeding means 13, the peeling means 15, the bag closing means 17, and the carry-out means 27 are arranged around the turn plate 69 at an equiangular pitch of 60 °. On the other hand, the header holding means 5 and the plurality of flap holding means 11 are arranged on the turn plate 69 at an equiangular pitch of 60 °, and one of the flap holding means 11 faces the front of the standing means 3.

  3A and 3B show a turn plate 69 which is a main part of the transfer means 67, a rotating shaft 71 for transmitting the output of the rotating machine to the turn plate 69, and a cylindrical member 73 joined to the rotating shaft 71. Is shown. The flap holding means 11 and the header holding means 5 are omitted in the figure. Reference numerals 75 and 77 denote cutout portions formed in the turn plate 69. 4A and 4B show a support structure in which the header holding means 5 and the flap holding means 11 are supported by the turn plate 69. FIG.

  As shown in FIG. 5A, the header holding means 5 is fixed to the lower surface of the turn plate 69 and is fixed to the upper surface of the turn plate 69 by receiving a fixing piece 79 suspended from the periphery of the turn plate 69 and a horizontal shaft 81. A bracket 83, a header lever 85 that is pivotally supported by the horizontal shaft 81 and extends below the horizontal shaft 81, and an inner movable piece 87 that is attached to the header lever 85 and faces the fixed piece 79 from the inside of the turn plate 69. Drive means 89.

  The drive means 89 turns the follower 91 joined to the header lever 85 in accordance with the cam operation of an air cylinder or the like, thereby turning the header lever 85 in a direction in which the space between the fixed piece 79 and the inner movable piece 87 is opened. . The header lever 85 is connected between the fixed piece 79 and the inner movable piece 87 by a coil spring or the like that is stretched between an upper end 93 of the header lever 85 and a pin 94 fixed to the upper surface of the turn plate 69 shown in FIG. Is biased in the closing direction. For this reason, when the driving means 89 does not operate the cam, the inner movable piece 87 is pressed against the fixed piece 79 and the space between the two is closed.

  As shown in FIG. 5 (b), the flap holding means 11 shares the horizontal shaft 81, the fixed piece 79, and the bracket 83 with the header holding means 5, and is a flap that is fixed to the horizontal shaft 81 and extends below the horizontal shaft 81. A lever 95, an outer movable piece 97 attached to the flap lever 95 and facing the fixed piece 79 from the outside of the turn plate 69, and drive means 99 are provided.

  The drive means 99 causes the follower 103 joined to the flap lever 95 via the crank 101 to follow the cam operation by an air cylinder or the like, thereby moving the flap lever 95 between the fixed piece 79 and the outer movable piece 97. Turn in the opening direction. The flap lever 95 is urged in a direction in which the space between the fixed piece 79 and the outer movable piece 97 is closed by a torsion spring or the like provided between the bracket 83 and the crank 101. For this reason, when the driving means 99 does not operate the cam, the outer movable piece 97 is pressed against the fixed piece 79 and the space between the two is closed.

  6 to 8 show the cutting means 7 and the bag opening means 9. The turn plate 69, the header holding means 5 and the flap holding means 11 are omitted in FIG. The cutting means 7 includes a pair of support shafts 107 that make the shaft end 105 face the bag body 19 that holds the header 31 on the header holding means 5, and a pair of support shafts 107 that extend the blade edge 109 in the radial direction of the support shaft 107. A pair of cutters 111 respectively supported by a pair, a pair of drive sources 113 for rotating the pair of support shafts 107, a drive source 115 for moving the pair of cutters 111 forward and backward with respect to the bag body 19, and a stopper 117. Is provided.

  The pair of drive sources 113 are two rotating machines that rotate the pair of support shafts 107 in directions opposite to each other. Support members 121 and 122 are fixed to a column 119 rising from the bottom plate 39. The drive source 115 is an air cylinder supported by the support member 121, and a pair of drive sources 113 and a protruding member 125 are attached to the piston rod 123, and the stopper 117 is supported by the protruding member 125.

  The length of the stopper 117 extending in the horizontal direction from the tip of the piston rod 123 is substantially equal to the distance from the tip of the piston rod 123 to the pair of cutters 111. Between the opening 127 of the bag body 19 and the flap 33, a flap blowing means 129 for injecting an airflow from below the pair of cutters 111 may be attached to the protruding member 125. The illustrated flap blowing means 129 is a nozzle that injects compressed air upward.

  The bag opening means 9 lifts the push-up member 131 around the output shaft 135 of the rotary machine 133 and the push-up member 131 that contacts the flap 33 of the bag body 19 holding the header 31 in the header holding means 5 from below. And a push-up means 137 for turning in the direction to be performed.

  The push-up means 137 has a swing arm 139 attached to the output shaft 135 of the rotating machine 133 supported by the support member 122, and the base ends of the four swing arms 143 are joined to the swing arm 139 via the support shaft 141. Yes. The push-up member 131 is a roller that is stretched between the tips of two adjacent swing arms 143. A torsion spring or the like that urges the swing arm 143 in a direction to be pressed against a stopper 145 fixed to the swing arm 139 is provided on the support shaft 141. Since the existing technique described as the background art may be applied to the input means 13, its description is omitted.

  As shown in FIGS. 9 and 10, the peeling unit 15 includes a clamping unit 151 that opens and closes a pair of clamping pieces 147 facing each other by a driving source 149, and a turning arm 153 that supports the clamping unit 151. Discharge means 159 joined to the output shaft 157.

  A support member 163 that supports the rotating machine 155 is fixed to a horizontal member 161 that protrudes horizontally from the housing 37. The drive source 149 opens and closes the pair of sandwiching pieces 147 with the pair of pins 165 as fulcrums based on the air pressure. FIG. 10 shows a pair of sandwiching pieces 147 closed with each other by a solid line, and a pair of sandwiching pieces 147 opened with each other by a virtual line 147 ′. The support member 163 is attached with a frame member 167 that suspends the discharge means 159 on the side thereof. The discharge means 159 is a suction pipe that causes an air flow from one end 173 to the other end 175 of the cylindrical body 171 having an air escape passage 169 formed on the inner side based on Bernoulli's principle.

  Although the illustrated discharge means 159 has its one end 173 oriented in the horizontal direction, it may be attached to the frame member 167 with the one end 173 facing downward. A liner blowing means 179 for injecting airflow from below the pair of sandwiching pieces 147 to the liner 177 of the bag body 19 may be attached to the support member 163. The illustrated liner blowing means 179 is a nozzle that injects compressed air upward.

  As shown in FIGS. 11 and 12, the bag closing means 17 includes a pressing member 183 that contacts the flap 33 of the bag body 19 from above, a close contact member 185 that elastically deforms according to the shape of the bag body 19, and a pressing member 183. And a push-down means 193 in which a turning bracket 188 supporting the close contact member 185 is joined to the output shaft 191 of the rotating machine 189. The turn plate 69, the header holding means 5, and the flap holding means 11 are omitted in FIG. Reference numeral 190 denotes an air cylinder that advances and retracts the pressing member 183 and the close contact member 185 relative to the bag body 19.

  The push-down means 193 joins the base ends of the four swing arms 197 to the swing arm 187 via the support shaft 195. The pressing member 183 is a roller that is stretched between the tips of two adjacent swing arms 197. A torsion spring or the like that urges the swing arm 197 in a direction to press the stopper 199 fixed to the swing arm 187 is provided on the support shaft 195. The close contact member 185 is preferably a columnar brush raised in the radial direction. Either the pressing member 183 or the close contact member 185 may be omitted.

  Next, operations of the article bagging apparatus 1 and the cutting apparatus 29 will be described. The following English letters at the beginning of the sentence are indicators for classifying the operation process of the article bagging apparatus 1. The operation of the article bagging apparatus 1 is realized by controlling the above-described drive source, rotating machine, air cylinder, and the like based on a computer-readable program.

  A: As shown in FIG. 2, the rotating machine 51 holds the turning arm 55 horizontally. The electric motor 41 raises the operating rod 43, and the rodless air cylinder 47 moves the slider 45 to its one end 203. As a result, the three suction pads 57 reach above the carry-in means 21. The carrying-in means 21 carries in the bag 19 to just below the three suction pads 57 and stops. When the electric motor 41 lowers the operation rod 43 and the suction pad 57 is lowered to a height at which the bag body 19 is adsorbed, the electric motor 41 starts the operation of raising the operation rod 43. The rodless air cylinder 47 moves the slider 45 to the other end 205, and the rotating machine 51 raises the turning arm 55.

  FIG. 8 is a side view in the direction of the arrow B in FIG. 1, and based on this, the upper end 207 of the header 31 is a fixed piece of the header holding means 5 when the swivel arm 55 is raised as described above. It is below 79. After the header holding means 5 opens between the fixed piece 79 and the inner movable piece 87, the electric motor 41 further raises the operating rod 43, and the header 31 of the bag body 19 is between the fixed piece 79 and the inner movable piece 87. The electric motor 41 stops when it reaches the height at which it enters. The header holding means 5 closes the space between the fixed piece 79 and the inner movable piece 87 and holds the header 31 of the bag body 19. The negative pressure supplied to the suction pad 57 is cut off, and the rodless air cylinder 47 moves the slider 45 to one end 203 thereof, whereby the suction pad 57 is retracted from the bag body 19.

  B: The transfer means 67 rotates the turn plate 69 by 60 ° in the direction of the arrow θ. The pair of drive sources 113 are stopped, and the pair of cutters 111 are waiting in a posture shown by a solid line in FIG. At this time, the cutting edge 109 of the cutter 111 may be lower than the flap 33 and positioned inward in the width direction with respect to the side edge 35 of the bag body 19. As shown in FIG. 7, the drive source 115 advances the piston rod 123 to the bag body 19, and the stopper 117 contacts the bag body 19 or stops the piston rod 123 just before that. A pair of drive sources 113 respectively turn the pair of support shafts 107 in the direction of arrow α. Thereby, the flap 33 welded to the side edge 35 of the bag body 19 in the manufacturing process of the bag body 19 can be immediately separated from the bag body 19.

  Since the drive source 113 turns the cutter 111 to the position indicated by the imaginary line 111 ′ in the direction of the arrow α, the cutter 111 traverses the side edge 35 of the bag body 19 outwardly, and the opening of the bag body 19. Separate between 127 and the flap 33. As described above, since the separation of the flap 33 and the operation of detaching the pair of cutters 111 from the bag body 19 can be performed at the same time, the cutting device 29 can easily control the drive source 113 because the operation is simple. It is advantageous to improve the reliability. Further, when the cutter 111 rotates as described above, the gap where the cutter 111 enters is positively opened between the opening 127 of the bag 19 and the flap 33 by the injection of the flap blowing means 129. May be. Thereby, it is possible to prevent the cutter 111 from deviating to the outside of the flap 33.

  On the other hand, the flap holding means 11 opens between the fixed piece 79 and the outer movable piece 97. As shown in FIG. 7, the rotating machine 133 of the push-up means 137 turns the turning arm 139 in the direction of the arrow β. In this process, the push-up member 131 moves along a circular arc centered on the output shaft 135 and comes into contact with the flap 33 of the bag body 19 from below. As a result, the flap 33 bends above the opening 127 as indicated by the virtual line 33 ′, so that the flap holding means 11 enters between the fixed piece 79 and the outer movable piece 97. The flap holding means 11 closes between the fixed piece 79 and the inner movable piece 87, and holds the flap 33 of the bag body 19 above the opening 127. In this step, the cylindrical member 73 and the outer movable piece 97 are in a position where they block the stroke of the push-up member 131, but the swing arm 143 turns against the torsion spring and the like to move the push-up member 131 to the arrow β You can escape in the opposite direction.

  C: The transfer means 67 rotates the turn plate 69 by 60 ° in the direction of the arrow θ. The input means 13 inputs one or a plurality of articles 23 supplied by the supply device into one bag body 19.

  D: The transfer means 67 rotates the turn plate 69 by 60 ° in the direction of the arrow θ. As shown in FIG. 10, the clamping means 151 opens a pair of clamping pieces 147 and stops the drive source 149. In this state, it is preferable that the liner blowing means 179 injects an air current onto the liner 177 of the bag body 19 to lift the liner 177 from the margin where the adhesive portion of the flap 33 is not formed.

  Subsequently, the sandwiching means 151 closes the pair of sandwiching pieces 147 so that the liner 177 lifted from the flap 33 is sandwiched therebetween. The rotating machine 155 turns the clamping means 151 together with the turning arm 153 around the output shaft 157 in the direction of the arrow γ. As a result, the pair of sandwiching pieces retracts from the bag body 19, and the liner 177 sandwiched between the pair of sandwiching pieces 147 is transferred directly above the rotating machine 155. In this state, the clamping means 151 reopens the pair of clamping pieces 147 and releases the liner 177. The liner 177 is sucked into the escape passage 169 of the discharge means 159 and discharged to another place through a hose connected to the other end 175.

  E: The transfer means 67 rotates the turn plate 69 by 60 ° in the direction of the arrow θ. The flap holding means 11 opens between the fixed piece 79 and the outer movable piece 97 to release the flap 33. As shown in FIG. 12, the rotating machine 189 of the pressing means 193 turns the turning arm 187 in the direction of the arrow δ. In this process, the pressing member 183 and the close contact member 185 move along a circular arc centered on the output shaft 191, and both come into contact with the flap 33 of the bag body 19 sequentially from above, so that the flap 33 Can be folded over the opening 127. In this step, the cylindrical member 73 and the outer movable piece 97 are in a position where the stroke of the pressing member 183 is blocked, but the swing arm 197 rotates against the torsion spring or the like, and the pressing member 183 is moved to the arrow δ. You can escape in the opposite direction.

  F: The transfer means 67 rotates the turn plate 69 by 60 ° in the direction of the arrow θ. The header holding means 5 opens between the fixed piece 79 and the inner movable piece 87 to release the header 31. As a result, the bag body 19 drops from the header holding means 5 to the carry-out means 27 and is carried out of the housing 37 by the carry-out means 27. The article bagging apparatus 1 can perform the series of steps described so far without human intervention.

  It should be noted that the present invention can be carried out in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. In the embodiment, the operation of the article bagging apparatus 1 has been described by paying attention to one bag body 19, but the process A is performed every time the carrying-in means 21 carries the bag body 19 into the article bagging apparatus 1, The steps A to F proceed simultaneously with the six bag bodies 19 sequentially carried into the article bagging apparatus 1 by the carry-in means 21 as targets.

  Further, the transfer unit 67 may be omitted, and the cutting unit 7, the bag opening unit 9, the throwing unit 13, and the peeling unit 15 may be sequentially moved to a position facing the front surface of the bag body 19. The number of the header holding means 5 is not limited, and the present invention can be implemented by attaching one or more header holding means 5 to the turn plate 69. This also applies to the flap holding means 11. The above-described drive source, rotating machine, air cylinder, and the like can be replaced with any drive source such as an electric motor or a hydraulic cylinder.

  INDUSTRIAL APPLICABILITY The present invention is a technique useful for reducing the labor for opening the opening of a bag body having a flap and increasing the number of articles that can be inserted into the bag body per predetermined time.

  DESCRIPTION OF SYMBOLS 1 ... Goods bagging apparatus, 3 ... Standing means, 5 ... Header holding means, 7 ... Cutting means, 9 ... Bag opening means, 11 ... Flap holding means, 13 .. Loading means, 15 ... peeling means, 17 ... bag closing means, 19, 301 ... bag body, 21 ... carrying means, 23 ... articles, 25 ... supply means, 27. .. Unloading means, 29 ... cutting device, 31, 319 ... header, 33, 315 ... flap, 35, 311 ... side edge, 37 ... housing, 39 ... bottom plate.

  41 ... Electric motor, 43 ... Operating rod, 45 ... Slider, 47 ... Rodless air cylinder, 49 ... Holding plate, 51, 133, 155, 189 ... Rotating machine, 53, 135, 157, 191 ... output shaft, 55, 139, 153, 187 ... swivel arm, 188 ... swivel bracket, 57 ... suction pad, 59 ... case, 61 ... guide rail , 63 ... shaft portion, 65, 117, 145, 199 ... stopper, 67 ... transfer means, 69 ... turn plate, 71 ... rotating shaft, 73 ... cylindrical member, 75, 77 ... notch, 79 ... fixed piece, 81 ... horizontal axis, 83 ... bracket, 85 ... header lever, 87 ... inner movable piece, 89,99 ... drive means 91, 103 ... follower, 93, 207 ... upper end, 94 ... pin, 95 ... flap lever, 97 ... outer movable piece, 101 ... crank, 105 ... shaft End, 107, 41,195 ... the support shaft.

  109 ... blade, 111 ... cutter, 113,115,149 ... drive source, 119 ... support, 121,163 ... support member, 123 ... piston rod, 125 ... projection Member, 127,313 ... opening, 129 ... flap blowing means, 131 ... push-up member, 137 ... push-up means, 143, 197 ... swing arm, 147 ... clamping piece, 151 ... clamping means, 159 ... discharge means, 161 ... horizontal member, 165 ... pin, 167 ... frame material, 169 ... escape passage, 171 ... cylindrical body, 173, 203 ... One end, 175, 205 ... Other end, 177 ... Liner, 179 ... Liner blowing means, 183 ... Pressing member, 185 ... Close contact member, 193 ... Pressing Means: 303 ... film, 305,307 ... edge, 309 ... inside surface, 317 ... fold, 321 ... adhesive part, 323 ... through hole.

Claims (6)

  Holding the bag body that extends the header from the opening extending in the width direction and folds the flap over the opening, with the opening facing upward, and between the opening and the flap of the bag, A pair of cutters having cutting edges are entered, and the pair of cutters are operated in opposite directions so that the cutting edges of the pair of cutters protrude outward in the width direction of the bag body, respectively. apparatus. A header holding means for holding the header in a posture in which the header extends from the opening extending in the width direction and the flap is folded over the opening, with the opening facing upward;
A pair of support shafts arranged below the flap of the bag body holding the header in the header holding means, with the shaft ends facing the bag body;
Between the opening of the bag body and the flap, a pair of cutters having a blade edge is inserted, and the blade edges of the pair of cutters are protruded outward in the width direction of the bag body from below the flap. A cutting device comprising: a drive source for rotating the pair of support shafts.   The cutting apparatus according to claim 2, further comprising flap blowing means for injecting an air current between the opening of the bag body holding the header by the header holding means and the flap. Standing means for erecting a bag body that extends a header from an opening extending in the width direction and folds a flap over the opening so that the opening faces upward;
Header holding means for holding the header of the bag body raised by the standing means;
A pair of cutters having blade edges are inserted between the opening of the bag body held by the header holding means and the flap, and the blade edges of the pair of cutters protrude outward in the width direction of the bag body. Cutting means for operating the pair of cutters in opposite directions;
Bag opening means for pushing up the flap above the opening of the bag body holding the header by the header holding means;
Flap holding means for holding the flap pushed up by the bag opening means above the opening of the bag body;
An input unit that inputs an article into an opening of a bag body that holds the header in the header holding unit;
An article bagging apparatus comprising: bag closing means for folding the flap over an opening of a bag body into which the article is placed. The cutting means is disposed below the flap of the bag body holding the header by the header holding means, and a pair of support shafts whose shaft ends are opposed to the bag body,
A driving source for rotating the pair of support shafts in a direction in which the blade edges of the pair of cutters protrude outward in the width direction of the bag body from below the flap;
The article bagging apparatus according to claim 4, further comprising: The bag opening means is a push-up member that comes into contact with the flap of the bag body holding the header in the header holding means from below.
6. The article bagging according to claim 4, further comprising a push-up unit that joins the push-up member to an output shaft of a rotating machine and pivots the push-up member in an upward direction around the output shaft. apparatus.

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