JPWO2011033947A1 - Bag closing device and bag filling device - Google Patents

Abstract

Provided are a bag closing device and a bag filling device capable of folding back a flap of a bag body with a linear fold regardless of the shape of an article inserted into the bag body. A bag closing device (5) extends a flap (3) extending from an opening (7) of a bag body (1) and a base (11) is connected to the opening (7) and folds back to the bag body (1), and is positioned on the base (11) of the flap (3). The guide bar 15 includes a horizontal portion 35, a folding bar 17 that engages the flap 3, and a folding operation means 18 that moves the folding bar 17 in the direction opposite to the extending direction of the flap 3. In accordance with the movement of the bar 17, the flap 3 is bent in the direction of folding back to the bag body 1 with the horizontal portion 35 of the guide bar 15 as a fulcrum.

Description

  The present invention relates to a bag closing device that closes an opening of a bag body such as a packaging bag into which an article is inserted or an envelope, and a bag filling device.

  An apparatus for inserting an article into a bag is disclosed in Patent Document 1. The bag body has a flap (a marginal portion) extending from the lower edge of the opening. An apparatus for folding a flap of a bag body and bonding it to the bag body is disclosed in Patent Document 2.

  When the article is box-shaped, curved, spherical, or convex, when the article is inserted into the bag, the bag is deformed into strain. In view of this point, the apparatus of Patent Document 2 is configured to press a brush attached to a roller that rotates above the bag body, after the flap is folded back to the bag body. Thereby, the flap can be brought into close contact with the bag body regardless of the deformation of the bag body, and the opening can be satisfactorily sealed.

  However, as shown in FIG. 22, the flap 105 is folded back to the bag body 103 in order to close the opening 104 of the bag body 103 into which the article 102 having the curved edge 100 is inserted. At this time, the portions 106 near both sides of the opening 104 are deformed following the edge 100 of the article 102, so that it is difficult to fold the flap 105 with a linear fold. Thus, when the flap 104 is wrinkled, the appearance of the packaged article 102 as a product is impaired.

Japanese Patent Laid-Open No. 7-17524 JP-A-9-118304

  Therefore, an object of the present invention is to provide a bag closing device and a bag filling device that can fold back the flap of the bag body with a linear fold regardless of the shape of the article inserted into the bag body.

  The present invention relates to a bag closing device for folding back a flap extending from an opening of a bag body and having a base portion connected to the opening to the bag body, the guide bar being positioned at the base portion of the flap, and the flap. And a folding operation means for moving the folding bar in a direction opposite to the direction in which the flap extends. The folding bar is moved by the folding operation means, and the flap is moved to the guide bar. It is bent to the direction which folds it in the said bag body as a fulcrum.

  Further, the present invention supports a bag body in which the base portion of the flap is connected to the opening portion and the flap extends from the opening portion in a direction perpendicular to the width direction of the bag body in a horizontal posture, and the flap is supported. A bag closing device that folds back to the bag body, the standing means for raising the flap of the bag body, a pair of guide bars that are positioned at the base of the flap and extend in the width direction, and the pair of guide bars. Guide bar opposing moving means for moving the width direction in opposite directions, a folding bar extending in the width direction, and a folding operation means for moving the folding bar forward or backward in a direction perpendicular to the width direction, The guide bar opposing movement means moves the pair of guide bars in a direction approaching each other, and the folding bar advanced by the folding operation means is a flat raised by the standing means. The guide bar is bent in a direction to be folded back to the bag body, and the guide bar opposing moving means moves the pair of guide bars away from each other, whereby the pair of guide bars are detached from the flap. It is characterized by making it.

  The present invention further includes guide bar lifting / lowering means for lifting and lowering the pair of guide bars, and the guide bar lifting / lowering means moves the pair of guide bars when the guide bar opposing movement means brings the pair of guide bars closer to each other. When the bar is lowered to a height close to the base of the flap, and the guide bar opposing moving means separates the pair of guide bars from each other, the guide bar lifting means moves the pair of guide bars above the bag body. It is characterized by a high rise.

  Further, the present invention comprises: a sandwich piece that faces the folding bar and moves forward or backward together with the folding bar by the folding operation means; and an opening / closing means that opens and closes between the folding bar and the sandwich piece. The flap that is sandwiched between the folding bar and the sandwiching piece, the flap that is erected by the standing means is inserted between the folding bar and the sandwiching piece, and the opening / closing means closes the gap between the sandwiching piece and the folding bar. The flap is folded back to the bag body by pulling the folding bar in accordance with the advancement of the folding bar, and the tensioning force generated in the direction in which the folding bar moves backward as a reaction force of the pulling to the flap. The flap is pulled out from between the folding bar.

  In the present invention, the contact plate disposed above the bag body in a posture in which the tip is directed to the opening of the bag body, and the contact plate is moved in a direction in which the folding bar moves forward or backward. Contact plate advance / retreat means for moving the contact plate in a direction in which the folding bar moves backward, and the tip of the contact plate is brought close to the opening of the bag body. In the state, in the process in which the folding operation means advances the folding bar, the contact plate advance / retreat means moves the contact plate in a direction in which the folding bar advances, whereby the bag body and the folding bar are moved. The abutting plate is retracted from between the flaps that are folded back as the head advances.

  Further, the present invention is characterized in that the folding bar has an elastic member that is in sliding contact with the flap folded back on the bag.

  Further, the present invention transports a film having edges on both sides in the width direction in the longitudinal direction, and the other edge extends from one edge of the both edges along the width direction of the film. A film supply means that is folded in two so as to come out, and a heat cutter that extends in the width direction of the film is pressed in the middle of the longitudinal direction of the film, and the films that are overlapped in the half fold are welded together by the heat of the heat cutter, and A bag body in which an opening is secured between the one edge and the other edge by dividing the film in the middle of the longitudinal direction, and the one edge extends as a flap from the opening. A bag making apparatus, an insertion apparatus for inserting an article into the bag, and a bag closing apparatus according to any one of claims 1 to 5.

  Further, the present invention includes a bag body conveying means for conveying a bag body formed by the bag making apparatus, and the insertion device reciprocally moves the slider forward or backward in the horizontal direction; A driven holder connected to the slider so as to be movable up and down and holding the pusher; a support for supporting an article at the same height as the bag; a linear rail for guiding the driven holder in a horizontal direction; and the driven holder. A cam rail that guides the linear rail upward, and the bag transport means transports the bag to a position where the opening of the bag faces an article supported by the support, and the slider advances. In the process in which the height of the driven holder is positioned by the linear rail so that the height of the pusher matches the article, and the slider moves backward, As serial pusher passes over the article to be supported by the supporting member, the driven holder, characterized in that the increase in accordance with the cam rail.

  In addition, the present invention includes a bag body transporting unit that transports a bag body formed by the bag making apparatus, wherein the insertion device receives a flexible article slidably in a horizontal direction, and above the article. A contact surface member arranged on the surface, a contact surface member lifting / lowering means for moving the contact surface member up and down, a pressing plate pressed against the article from the horizontal direction, and the pressing plate according to the contact surface member in the horizontal direction. Horizontal movement means for moving the bag body conveying means, the bag body conveying the bag body to a position facing an article whose opening is received by the bottom surface material, and the contacting surface member lifting means is the contact surface The member is positioned at a height close to the article, the horizontal movement means moves the contact member to a position to enter the opening of the bag body, and the article is opened by the push plate. It is characterized by being immersed in the department

  According to the bag closing device of the present invention, since the guide bar is positioned at the base of the flap, the folding operation means moves the folding bar so that the flap is bent with the guide bar as a fulcrum and folded back to the bag body. Can do. For this reason, even if the bag body is deformed into a strain at the stage when the article is inserted, the flap base portion can be folded back at the fold along the guide bar so that the flap can be brought into close contact with the bag body. For example, if an adhesive is previously attached to the bag body, a flap can be adhered to the bag body, and the opening of the bag body can be satisfactorily sealed.

  As described above, the bag closing device according to the present invention can complete the operation of folding the flap and the operation of bringing the flap into close contact with the bag at the same time, so the number of bags that can be sealed per predetermined time is reduced. It is advantageous to increase.

  Further, according to the bag closing device of the present invention, when the guide bar facing moving means brings the pair of guide bars close to each other, the guide bar lifting means lowers the pair of guide bars, so The guide bar can be positioned. Further, when the flap is folded back on the bag body, the guide bar is wound inside the flap. In this state, the guide bar facing moving means moves the pair of guide bars away from each other in the width direction, whereby the pair of guide bars can be extracted from the inside of the folded flap as described above. Further, since the guide bar raising / lowering means can raise the pair of guide bars higher than the bag body, the pair of guide bars can be released above the bag body when the bag body is conveyed by the bag body conveying means.

  Furthermore, according to the bag closing apparatus according to the present invention, the flap raised by the standing means is entered between the sandwich piece and the folding bar, and the opening / closing means closes the gap between the sandwich piece and the folding bar. A flap can be sandwiched between them. In this state, the flap can be folded back into the bag body by pulling the flap according to the advance of the folding bar. As a reaction force of this traction, the flap that bends as the folding bar advances due to the tension generated in the direction in which the folding bar moves backward is pulled out relatively between the sandwiching piece and the folding bar when it is folded over the bag. It is. For this reason, since the operation | movement for making a flap remove | separate from a clamping piece and a folding bar is unnecessary, the said bag closing apparatus has the advantage that there are few man-hours of the operation | movement required in order to return a flap to a bag body.

  Moreover, the opening part of a bag body may open large in the up-down direction by inserting a thick article into the bag body. In this case, according to the bag closing device according to the present invention, the contact plate advance / retreat means moves the contact plate in the direction in which the folding bar moves backward, and brings the tip of the contact plate close to the opening of the bag body. Thereby, the force by which the flap is pressed against the opening in the process of moving the folding bar forward is received by the tip of the contact plate, and unnecessary deformation of the opening can be prevented. Then, in the process of further advancement of the folding bar, the contact plate advancing / retreating means makes contact between the flap folded back to the bag body and the bag body by moving the contact plate in the direction of advancement of the folding bar. The board can be retracted and both can be brought into close contact.

  Furthermore, according to the bag closing device of the present invention, the elastic member is elastically deformed following the bag body while slidingly contacting the flap while the flap is folded back into the bag body deformed into strain as described above. Since the elastic member elastically deformed in this way uniformly presses the entire area of the flap against the bag body, the bag body and the flap can be adhered in an airtight manner.

  According to the bagging apparatus of the present invention, the film supply means sends out the film in a shape that is folded in two in the width direction, so that it is possible to make a bag by simply replacing the film with a different size in the width direction. The depth of the opening of the bag formed by the apparatus can be set as desired. And the width | variety of the opening part of a bag body can be set as desired only by adjusting the space | interval which the heat cutter of a bag making apparatus presses a film in the middle of the longitudinal direction. For this reason, the bagging apparatus according to the present invention can form a bag body so that articles of any shape or size can be inserted, and the article is inserted into the bag body from the step of forming such a bag body. Furthermore, the process until the bag is closed can be performed in a unified manner.

The perspective view of the principal part of the bag closing apparatus which concerns on Example 1 of this invention. The side view of the principal part of the bag closing apparatus which concerns on Example 1 of this invention. Sectional drawing which shows an example of operation | movement of the folding operation means applied to the bag closing apparatus which concerns on Example 1 of this invention. Sectional drawing which shows the other example of operation | movement of the folding operation means applied to the bag closing apparatus which concerns on Example 1 of this invention. Schematic which shows the 1st process-3rd process of operation | movement of the bag closing apparatus which concerns on Example 1 of this invention in order of (a)-(c). Schematic which shows the 4th process-6th process of operation | movement of the bag closing apparatus which concerns on Example 1 of this invention in order of (a)-(c). The perspective view which shows the modification of the folding bar applied to the bag closing apparatus which concerns on Example 1 of this invention. The perspective view which shows the modification of the guide bar applied to the bag closing apparatus which concerns on Example 1 of this invention. The top view of the bagging apparatus which concerns on Example 2 of this invention. The perspective view which shows the insertion process of the articles | goods by the bagging apparatus which concerns on Example 2 of this invention. The disassembled perspective view which shows the principal part of the insertion apparatus applied to the bagging apparatus which concerns on Example 2 of this invention. The top view of the principal part of the insertion apparatus applied to the bagging apparatus which concerns on Example 2 of this invention. (A) is a schematic diagram explaining an example of operation of an insertion device concerning Example 2 of the present invention paying attention to the introduction part of the guide rail, and (b) is a schematic diagram explaining other examples. (A) is a schematic diagram explaining an example of operation of an insertion device concerning Example 2 of the present invention paying attention to the sending part of the guide rail, and (b) is a schematic diagram explaining other examples. The top view of the bagging apparatus which concerns on Example 3 of this invention. The perspective view which abbreviate | omitted some elements of the insertion apparatus applied to the bagging apparatus which concerns on Example 3 of this invention. The principal part of the bagging apparatus which concerns on Example 3 of this invention, and the perspective view of the element abbreviate | omitted in FIG. 16 of the insertion apparatus. The top view of the principal part of the insertion apparatus which concerns on Example 3 of this invention. Schematic which shows the 1st process of the operation | movement of the insertion apparatus which concerns on Example 3 of this invention, and a 2nd process in order of (a), (b). Schematic which shows the 3rd process of the operation | movement of the insertion apparatus which concerns on Example 3 of this invention, and a 4th process in order of (a), (b). Schematic which shows the 5th process and 6th process of operation | movement of the insertion apparatus which concerns on Example 3 of this invention in order of (a), (b). The top view explaining the conventional process in which the flap of the bag body in which the article was inserted is turned back.

  In the following Example 1, the bag closing apparatus of the present invention will be described. Further, in Examples 2 and 3, a bag filling apparatus including the bag closing apparatus described in Example 1 will be described.

  FIG. 1 is a schematic view of elements constituting a bag closing device 5 that folds back a flap 3 of a bag body 1, and some of the elements are omitted for convenience of explanation or are shown in different dimensions. Assume that the bag 1 has an article 9 inserted therein through an opening 7. The flap 3 may be a thin piece having its tip extended from the opening 7. A portion connected to the lower edge of the opening 7 of the flap 3 is hereinafter referred to as a base 11. Although the figure shows the flap 3 standing up following the cam rail 13, the flap 3 has a flat shape extending from the opening 7 in the direction of arrow e when no external force is received from the cam rail 13.

  The bag closing device 5 includes a guide bar 15 that is positioned at the base 11 of the flap 3, a folding bar 17 that engages with the flap 3, and a folding operation means 18 that moves the folding bar 17 in the directions of arrows e and f. The flap 3 is made to follow the folding bar 17 that moves in the direction of the arrow f, and the flap 3 is bent in the direction of the arrow f. Arrows e and f point in directions opposite to each other and point in a direction orthogonal to the arrow W indicating the width direction of the bag body 1.

  Since a well-known technique can be applied to the drive source or guide means described below, detailed description of each is omitted. For example, an electric cylinder that expands and contracts a piston rod based on the operation of an air cylinder, a hydraulic cylinder, a servo motor, or a rotating machine may be applied as a drive source. As the guide means, a sliding pair formed by slidingly sliding a slider on a guide rail may be applied. The drawings refer to FIGS. 1 to 3 unless otherwise specified.

  In addition to the guide bar 15, the folding bar 17, and the folding operation means 18, the bag closing device 5 has a cam rail so that the flap 3 of the bag body 1 conveyed by the bag body conveying means 19 mainly composed of a belt conveyor is raised. 13 and a guide bar opposing moving means 23 for moving the pair of guide bars 15 in opposite directions in the width direction.

  The bag body transport means 19 may be any conveyor that transports the bag body 1 by receiving the bag body 1 in a horizontal posture and receiving it with a plurality of belts 25 and running these belts 25. In order to adsorb the bag body 1 to the belt 25, negative pressure is introduced into the suction hole 27 of the belt 25 from a suction port such as an air blower. The standing means 21 is one in which the cam rail 13 is fixed to a bottom plate or the like that slidably supports the belt 25 of the bag body conveying means 19.

  The guide bar facing moving means 23 is a drive source that moves the pair of operating portions 31 in the width direction opposite to each other based on the air pressure supplied to the cylinder 29. Hangers 33 are joined to the pair of operating portions 31, respectively. The guide bar 15 is an L-shaped bar provided at the lower end of the hanger 33, and the horizontal portion 35 extends in the width direction. The horizontal portions 35 of the pair of guide bars 15 approach each other according to the operating portion 31 of the guide bar facing moving means 23, or are separated from each other with an interval wider than the width of the bag 1 as shown in FIG.

  The folding bar 17 faces the opening 7 of the bag body 1, and both ends thereof are held by the pair of movable brackets 41 of the folding operation means 18. The total length of the folding bar 17 is set to exceed the width of the bag 1. One of the pair of movable brackets 41 appears in FIGS. 3 and 4, the cross sections of the folding operation means 18 are different from each other in the width direction.

  The folding operation means 18 is supported by a guide means 45 provided on the housing 43 of the bag transport means 19, a bearing member 49 fixed to the slider 47 of the guide means 45, and a support shaft 51 supported by the bearing member 49. The driven member 53, the cam 55, a connecting shaft 57 that penetrates the driven member 53 and has both ends connected to the pair of movable brackets 41, and a drive source 59 are provided.

  The driven member 53 is rotatable about the support shaft 51 with respect to the bearing member 49, and the movable bracket 41 is rotatable about the connecting shaft 57 with respect to the driven member 53. A nut 63 is fixed to a horizontal member 61 spanned inside the pair of movable brackets 41, and a height adjusting bolt 65 is screwed to the nut 63. Since the lower end of the height adjustment bolt 65 is abutted against the upper surface of the front end portion 67 of the driven member 53, the movable bracket 41 moves relative to the driven member 53 as the height adjustment bolt 65 is rotated in a direction to tighten the nut 63. Then, the folding bar 17 is inclined to the raised position.

  A support piece not shown in the figure is fixed to the housing 43, and the cam 55 is supported by the support piece. The drive source 59 can move the bearing member 49, the driven member 53, the pair of movable brackets 41, and the folding bar 17 together with the slider 47 in the directions of arrows e and F. When the folding bar 17 is retracted in the direction of arrow e, the roller 69 provided at the rear end of the driven member 53 is guided downward by the cam 55 as shown in FIG. As a result, the height adjustment bolt 65 is pushed up as the front end 67 of the driven member 53 rises around the support shaft 51, and the folding bar 17 rises to a desired height. On the contrary, when the folding bar 17 is advanced in the direction of the arrow f, the roller 69 is guided upward by the cam 55 as shown in FIG. Thereby, the front end portion 67 of the driven member 53 is lowered, and the folding bar 17 is lowered.

  Further, the bag closing device 5 opens and closes a guide bar lifting means 71 that lifts and lowers the pair of guide bars 15, a sandwiching piece 73 that faces the folding bar 17, and between the folding bar 17 and the sandwiching piece 73. Means 75, a contact plate 79 disposed above the bag body 1 in a posture with the tip 77 facing the opening 7 of the bag body 1, and a contact for moving the contact plate 79 in the directions of arrows e and f Plate advancing / retracting means 81.

  The guide bar lifting / lowering means 71 has a drive source 85 composed of an air cylinder with a guide attached to the upper end of a stem 83 attached at a proper position of the housing 43, and the guide bar opposite moving means 23 is attached to the piston rod 87 of the drive source 85. A lifting plate 89 to be supported is joined. The sandwiching piece 73 is a steel plate having a width equivalent to that of the folding bar 17.

  The opening / closing means 75 receives the rotating shaft 91 to which the upper end of the sandwiching piece 73 is fixed by a pair of movable brackets 41, joins a crank (not shown) to the rotating shaft 91, and inputs the crank from the drive source. The clamping piece 73 is rotated about the rotation shaft 91 by the rotational force applied. The contact plate 79 is a steel plate having a width equivalent to that of the bag body 1. The contact plate advance / retreat means 81 is formed by joining a contact plate 79 to the piston rod 97 of the drive source 95. The drive source 95 is attached to the stem 83 in an inclined posture via a V-shaped attachment member 93.

  Next, the operation of the bag closing device 5 will be described. The following English letters at the beginning of the sentence are indicators for distinguishing the operation process. The operation of the bag closing device 5 is based on a program written in a storage medium that can be accessed by a computer that controls the drive source described above.

  A: The folding operation means 18 retracts the folding bar 17 in the direction of arrow e, and the opening / closing means 75 rotates the clamping piece 73 in a direction to open between the folding bar 17 and the clamping piece 73. In this state, as shown in FIG. 5A, the position of the cam rail 13 matches directly below the folding bar 17 and the sandwiching piece 73. The figure shows a state in which the folding bar 17 is lifted by the above-described roller 69 being guided downward by the cam 55.

  B: The bag transport means 19 causes the belt 25 to travel. In the process of transporting the bag 1 placed on the belt 25, the flap 3 is pushed up by the cam rail 13 so as to stand above the belt 25 and enters between the folding bar 17 and the sandwiching piece 73. At this time, the bag body conveying means 19 stops the belt 25.

  It is assumed that an adhesive for adhering the flap 3 to the bag body 1 is attached to the bag body 1 in advance in the step B. Further, as shown in FIG. 1, an inclined portion 99 is provided on one of the pair of guide bars 15. This is to prevent the bag body 1 into which the thick article 9 is inserted from being caught on one guide bar 15 when being transported by the bag body transport means 19.

  C: The guide bar facing moving means 23 moves the pair of guide bars 15 in directions in which the horizontal portions 35 approach each other. The guide bar lifting / lowering means 71 lowers the pair of guide bars 15 and positions the horizontal portions 35 on the base 11 of the flap 3. Here, the positioning means that the horizontal portion 35 is brought into contact with the base portion 11 of the flap 3 and pressed, or is placed along the base portion 11 leaving a slight gap.

  D: The opening / closing means 75 closes between the sandwiching piece 73 and the folding bar 17. Thereby, as shown in FIG. 5B, the flap 3 is sandwiched between the sandwiching piece 73 and the folding bar 17.

  E: The contact plate advancing / retreating means 81 moves the contact plate 79 so as to descend obliquely in the direction of arrow e, and brings the tip 77 of the contact plate 79 close to the upper edge of the opening 7 of the bag body 1. The steps C to E may be performed simultaneously.

  F: The folding operation means 18 advances the folding bar 17 in the direction of the arrow f. As the folding bar 17 advances, the flap 3 clamped between the clamping piece 73 and the folding bar 17 in the step D is pulled in the direction of the arrow f as shown in FIG. Thereby, the flap 3 is folded back to the bag body 1 with the horizontal portions 35 of the pair of guide bars 15 as fulcrums. In addition, the thick article 9 may be inserted into the bag body 1 and the opening 7 of the bag body 1 may be greatly opened in the vertical direction. In this case, in the process in which the folding bar 17 moves forward, the tip 77 of the abutment plate 79 that has been brought close to the upper edge of the opening 7 in the above step E has the force that the flap 3 is pressed against the upper edge of the opening 7. Since it receives, the unnecessary deformation | transformation of the opening part 7 can be prevented.

  G: The contact plate advance / retreat means 81 moves the contact plate 79 so as to rise obliquely in the direction of the arrow f. As a result, as shown in FIG. 6 (a), the contact plate 79 is retracted from between the flap 3 folded back to the bag body 1 and the bag body 1, and as shown in FIG. Can be intimate. Further, the roller 69 described above is guided upward by the cam 55, so that the folding bar 17 is lowered in the process of the folding bar 17 moving forward. Thereby, the folding bar 17 can be brought close to the bag body 1 and the flap 3 can be urged to come into close contact with the bag body 1.

  H: Since the length extending from the opening 7 of the flap 3 is limited, the direction of the arrow e of the folding bar 17 on the flap 3 as the reaction force of the traction as the folding bar 17 further moves forward Tension is generated. This tension becomes maximum when the flap 3 is almost folded over the bag body 1, and the flap 3 is relatively pulled out from between the sandwiching piece 73 and the folding bar 17 as shown in FIG. 6 (c). For this reason, since the operation of the opening / closing means 75 for detaching the flap 3 from the folding bar 17 and the sandwiching piece 73 is unnecessary, the bag closing device 5 has an operation required for folding the flap 3 back to the bag body 1. There is an advantage that man-hours can be reduced. Further, the flap 3 shown in FIG. 6C is warped so as to be lifted from the bag body 1, but the flap 3 is restored to a flat shape by its appropriate elasticity, so that the entire flap 3 is in the bag body 1. It will be close.

  I: The guide bar facing moving means 23 moves the pair of guide bars 15 in directions in which the horizontal portions 35 are separated from each other. Thereby, since the flap 3 is folded back to the bag body 1, each horizontal portion 35 of the pair of guide bars 15 wound inside the flap 3 can be extracted from the inside of the flap 3. When this step is finished, the bag closing device 5 repeatedly executes the steps after the step A.

  According to the bag closing device 5 described above, the flap 3 can be bent and folded back to the bag body 1 with the horizontal portion 35 of the guide bar 15 as a fulcrum, so that the bag body 1 is in the stage where the article 9 is inserted. Even when the flap 3 is deformed, the base 11 of the flap 3 can be folded back by a linear fold along the horizontal portion 35 of the guide bar 15, and the flap 3 can be folded on the bag body 1. For this reason, the flap 3 can be adhered to the bag body 1 with an adhesive, and the opening 7 of the bag body 1 can be satisfactorily sealed. In addition, since the operation of turning back the flap 3 and the operation of bringing the flap 3 into intimate contact with the bag body 1 are completed simultaneously in the step H, the number of bag bodies 1 that the bag closing device 5 can seal per predetermined time. It is advantageous to increase.

  It should be noted that the present invention can be implemented 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. For example, the guide bars 15 do not need to be paired, and if the horizontal portion 35 of one guide bar 15 has a length substantially equal to the width of the bag body 1, the base portion 11 of the flap 3 is made to be one guide bar 15. It can be folded at the fold along the horizontal portion 35. In the step B, the guide bar lifting / lowering means 71 raises the pair of guide bars 15 when the bag body transporting means 19 transports a new bag body having the opening 7 opened. However, the guide bar lifting / lowering means 71 may be omitted. In this case, the guide bar 15 may escape in the horizontal direction from the bag body 1 conveyed to the bag body conveying means 19.

  Further, the sandwich piece 73 and the opening / closing means 75 may be omitted. In this case, the flap 3 can be folded back to the bag body 1 simply by pressing the folding bar 17 that moves forward in the direction of the arrow f in the step F to the flap 3. In this way, the folding bar 17 may be anything that engages the flap 3. In other words, it suffices if the flap 3 does not separate from the folding bar 17 moving forward in the direction of the arrow f.

  As shown in FIG. 7, an elastic member 101 such as a synthetic resin brush may be attached to the folding bar 17, and the elastic member 101 may be brought into sliding contact with the flap 3 in the steps F to H described above. As a result, since the entire area of the flap 3 is uniformly pressed against the bag body 1, even if the bag body 1 is deformed into a strain when the flap 3 is folded back to the bag body 1, the flap 3 Can be hermetically bonded. Further, when the flap 3 is folded back to the bag body 1, the base 11 of the flap 3 is deformed following the horizontal portion 35, and therefore the bag is in a stage where the horizontal portion 35 is extracted from the inside of the flap 3 in the step I. A hole is formed in the base 11 of the flap 3 folded back on the body 1. Therefore, as shown in FIG. 8, if the cross section of the horizontal portion 35 of the guide bar 15 is flattened along the horizontal plane, it can be narrowed to such an extent that the hole of the base portion 11 is easily closed.

  The same names are used for the elements already described, and the description or illustration thereof is omitted. 9 shows a film supply means 201, a bag making apparatus 203, a bag body transport means 19, an article supply means 213 for supplying an article 9 to a position facing the opening 7 of the bag body 1, and an article 9 in a bag. The outline of the bagging apparatus 200 provided with the insertion apparatus 215 inserted in the body 1 and the bag closing apparatus 5 which seals the opening part 7 of the bag body 1 after the articles | goods 9 are inserted is represented.

  The film supply means 201 is a roll-shaped film 217 having edges 216 and 218 on both sides in the width direction, and is fed in the direction of arrow T in the shape of being folded in the middle of the width direction. is there. The fold 220 that folds the film 217 is biased so as to approach the other edge 218 slightly rather than a position that bisects the edges 216 and 218 on both sides of the film 217. For this reason, when the film 217 is folded in half, the width from one edge 216 to the fold 220 exceeds the width from the other edge 218 to the fold 220, so that the one edge 216 Will extend beyond the other edge 218.

  The bag making apparatus 203 forms the rectangular bag 1 by heating the film 217 that is folded in two with a heat cutter 219 and fusing these films with the heat of the heat cutter 219. The melted portion 221 serves as a side edge portion of the bag body 1 in which the two-folded films 217 are fused to each other. Moreover, since the edge parts 216 and 218 on both sides are not fused to each other, the opening 7 is secured between them. At the stage where the film 217 is melted by the heat cutter 219, one edge 216 becomes the tip of the flap 3 extending from the opening 7. FIG. 10 shows a state in which the opening 7 of the bag body 1 is opened by the operation of the insertion device 215 described later.

  Next, the configuration of the insertion device 215 will be described. Since a well-known technique can be applied to the drive source or guide means described below, detailed description of each is omitted. For example, an air cylinder, a hydraulic cylinder, a servo motor, a rotating machine with a speed reducer, or an electric cylinder that expands and contracts an operating rod according to the operation of the rotating machine may be applied as a driving source. As the guide means, a sliding pair formed by slidingly sliding a slider on a guide rail may be applied.

  As shown in FIGS. 11 and 12, the insertion device 215 includes a linear operation means 229 for reciprocating the slider 227 in the horizontal direction, and a gate shape in which an upright portion 233 is connected to the slider 227 via a guide means 231 so as to be movable up and down. , A support body 243 that supports the article 9 at the same height as the bag body 1, a straight rail 245 extending in the horizontal direction, and a cam rail 247 disposed above the straight rail 245.

  The linear movement means 229 is configured to connect a ball nut 251 screwed to the feed screw 249 to the slider 227 and rotate the feed screw 249 with a drive source to move the slider 227 along the feed screw 249. . Both ends of the feed screw 249 are rotatably supported by the housing of the insertion device 215. The pusher 235 attaches a substantially L-shaped insertion claw 253 and feed claw 255 to the frame 237 so as to be separated from each other in the direction in which the pusher 235 reciprocates. Arrows F and R indicate the direction in which the pusher 235 moves forward or backward with respect to the bag body 1 together with the slider 227.

  The standing portion 233 of the driven holder 241 has a linear roller 245 or a driven roller 257 that can be brought into rolling contact with the cam rail 247 inside thereof. The follower holder 241 has a pusher 235 frame 237 fixed to an upright portion 239 thereof. The support body 243 is a pair of guide rails 259 made of chevron shaped lightweight steel. The guide rail 259 supports the article 9 with its flange 261. The flange 263 of the guide rail 259 restricts the article 9 from deviating from the inside of the pair of guide rails 259. A smooth bottom plate may be provided between the pair of guide rails 259.

  The article supply means 213 appears in FIG. 12 as an endless belt 267 wound around a rotating wheel 265, but if the article 9 can be introduced into the pair of guide rails 259 from the direction of the arrow F, It is not limited to the form shown in FIG. A plurality of rollers 269 are disposed inside the pair of guide rails 259. This is to allow the article 9 placed on the endless belt 267 running with the drive source to slide with its inertial force immediately after the article 9 is detached from the endless belt 267. Reference numerals 271 and 273 denote an introduction part and a delivery part of the guide rail 259, respectively.

  The support plate 275 shown in FIG. 12 supports the straight rail 245 and the pin 277 disposed above the straight rail 245, and is fixed to the housing of the insertion device 215. As shown in FIG. 11, the cam rail 247 includes an inclined portion 281 extending from one end 279 in the direction of the arrow F and a horizontal portion 285 extending from the other end 283 in the direction of the arrow R. In a posture received by the rail 245, the pin 277 is rotatably supported. The inclined portion 281 may have a shape that rises and inclines in the direction of the arrow R. A reference numeral 287 in FIG. 11 indicates an insertion hole through which the pin 277 is inserted into the cam rail 247.

  Next, the operation of the insertion device 215 will be described. A bag making apparatus 203 shown in FIG. 9 sequentially forms a plurality of bag bodies 1, and these bag bodies 1 are conveyed by the bag body conveying means 19. When the opening 7 of one bag body 1 reaches the front surface of the insertion claw 253 of the pusher 235, the bag body conveying means 19 stops the conveyance of the bag body 1. In this state, the linear operation means 229 of the insertion device 215 reciprocates the slider 227, thereby executing the first to fourth steps of the operation described below.

  In the first step, as the slider 227 moves forward, the driven roller 257 moves along the straight rail 245 in the direction of arrow F from the position represented by the imaginary line 257 ′ in FIG. 11. FIG. 13A shows that the article 9 supplied from the article supply means 213 hits the feed claw 255 of the pusher 235 and stops while this process is being executed.

  Further, the driven roller 257 moves in the direction of the arrow F, and comes into contact with the inclined portion 281 of the cam rail 247 from below. Since the inclined portion 281 is pushed up by the driven roller 257, the cam rail 247 turns in a direction to raise the one end 279 with the pin 277 as a fulcrum. After the driven roller 257 passes through the gap between the one end 279 of the inclined portion 281 and the linear rail 245 thus opened, the cam rail 247 turns by its own weight so as to descend the one end 279 and again receives the one end 279 on the linear rail 245. It is done. When the slider 227 reaches the limit for advancement, the feed claw 255 of the pusher 235 reaches the position indicated by the solid line in FIG. At the same time, the insertion claw 253 of the pusher 235 reaches the position indicated by the solid line in FIG.

  As described above, the height of the driven holder 241 is positioned by the linear rail 245 in the process in which the driven roller 257 moves along the linear rail 245. For this reason, the height of each of the insertion claw 253 and the feed claw 255 of the pusher 235 matches the article 9 supported by the support 243. As the slider 227 moves forward, the article 9 is pushed into the bag body 1 by the insertion claw 253 and the entire article 9 is inserted into the bag body 1. Here, “match” means that the tips of the insertion claw 253 and the feed claw 255 are slightly below the article 9.

  In the second step, the driven roller 257 moves along the straight rail 245 in the direction of arrow R in the process of retreating the slider 227 and reaches one end 279 of the inclined portion 281 of the cam rail 247. On the other hand, the insertion claw 253 of the pusher 235 is detached from the article 9 inserted in the bag body 1 in the first step and retracted from the bag body 1.

  In the third step, the slider 227 further moves backward, and the driven roller 257 rides on the inclined portion 281. At this time, since the load of the driven roller 257 is applied downward to the cam rail 247, the cam rail 247 maintains the posture in which the one end 279 is received by the linear rail 245. The driven roller 257 that moves in the direction of the arrow R moves up along the inclined portion 281 of the cam rail 247 and then moves along the horizontal portion 285. As a result, the driven holder 241 ascends together with the driven roller 257 and then moves horizontally, so that the feed claw 255 of the pusher 235 passes above the article 9 as indicated by a virtual line 255 ′ in FIG. .

  In the fourth step, the driven roller 257 is detached from the other end 283 of the horizontal portion 285 of the cam rail 247 and returned to the position represented by the imaginary line 257 'in FIG. At this time, the feeding claw 255 of the pusher 235 is further retracted from the article 9 and reaches the position indicated by the imaginary line 255 ″ in FIG. 13B. The driven roller 257 is also connected to the other end of the horizontal portion 285. After leaving 283, the pusher 235 is lowered together with the driven holder 241 because it is lowered to a height that can be received by the straight rail 245.

  Subsequently, the bag body conveying means 19 resumes the conveyance of the bag body 1, and the opening 7 of the bag body 1 following the bag body 1 into which the article 9 has already been inserted has reached the front of the insertion claw 253 of the pusher 235. By the way, the bag body conveying means 19 stops the conveyance of the bag body 1. The insertion device 215 executes the first process for the second time. During this time, a new article 9 is supplied from the article supply means 13 to the position shown in FIG.

  On the other hand, the feed claw 255 of the pusher 235 moving forward from the position represented by the imaginary line 255 ″ in FIG. 13 (b) hooks the article 9 supplied during the first first process, By performing the second to fourth steps of the second time, the feed claw 255 of the pusher 235 passes over the article 9 supplied during the second first step, and at the same time, the pusher. As shown by a virtual line 253 ′ in FIG. 14A, the insertion claw 253 of 235 passes above the article 9 supplied during the first step of the first time, and is a position represented by a virtual line 253 ″. Reach up to.

  Thereafter, the first step to the fourth step are further repeated, so that the article 9 supplied during the first step of the first time is inserted by the insertion claws 253 of the pusher 235 as shown in FIG. It is pushed out from between the pair of guide rails 259 and inserted into the opening 7 of the bag 1 shown in FIG.

  Further, each time the article 9 is inserted into one bag body 1, the bag body transport means 19 repeats the transportation and stoppage of the bag body 1, so that the insertion device 215 is supplied with a plurality of articles supplied sequentially from the article supply means 213. The article 9 can be inserted into each of the plurality of bags 1 conveyed by the bag conveying means 19. Moreover, immediately after the bag body conveyance means 19 conveys the bag body 1 in which the article 9 is inserted as described above, the bag closing device 5 starts the process A described in the first embodiment. When the flap 3 of the bag body 1 in which the article 9 is inserted rises in accordance with the cam rail 13 shown in FIG. 1, the bag body conveying means 19 stops the conveyance of the bag body 1. And the opening part 7 of the bag body 1 in which the article | item 9 was inserted can be sealed by the bag closing apparatus 5 performing the process below B described in Example 1. FIG.

  It should be noted that the present invention can be implemented 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. As shown in FIG. 10, the insertion device 215 is preferably provided with a pair of movable guides 301 between the pair of guide rails 259 and the opening 7. The pair of movable guides 301 are formed such that each protruding end 303 has a wedge shape and the cross section has a groove shape inward. Further, the insertion device 215 preferably includes guide means for guiding the pair of movable guides 301 so as to be movable in the directions of arrows F and R, and drive means for moving the pair of movable guides 301 back and forth in this direction.

  In this case, the movable guide 301 is retracted from the illustrated position so that the protruding end 303 of the movable guide 301 is detached from the opening 7 of the bag body 1, and the article 9 is positioned between the pair of guide rails 259 in the first step. Immediately before being pushed out, the pair of movable guides 301 are moved forward, and the respective protruding ends 303 enter the openings 7. Thereby, the opening part 7 is opened larger than the dimension of the article | item 9, and the malfunction of the article | item 9 inserted in the bag body 1 being caught by the opening part 7 can be prevented beforehand.

  Further, a pipe 305 is disposed above the belt 25 of the bag body conveying means 19, and the negative pressure guided from the suction means to the suction pad 307 provided at the lower end of the pipe 305 through the pipe 305 causes the pair of movable guides 301 to move. Immediately before moving forward, the appropriate position of the bag 1 may be sucked so that the opening 7 opens above the belt 25. Further, when the pair of movable guides 301 are retracted from the bag body 1, the respective protruding ends 303 are inclined to approach each other, and when the protruding ends 303 enter the opening 7, the interval between the protruding ends 303 is increased. The movable guide 301 may be operated as described above. Thereby, tension | tensile_strength can be generated in the opening part 7 of the bag body 1, and the looseness of the opening part 7 can be prevented.

  The film supply means 201 and the bag making apparatus 203 shown in FIG. 9 may be omitted, and the article 9 may be inserted into an existing bag body. In this case, an existing bag body may be directly supplied onto the belt 25 of the bag body conveying means 19. Further, the feed screw 249 and the ball nut 251 may be omitted, and a drive source in which the slider 227 is joined to the piston rod may be applied as the linear motion means 229. The speed at which the bag body transport means 19 transports the bag body 1 is doubled so that two or more insertion devices 215 arranged in the direction of arrow F insert the article 9 into two or more bag bodies 1 at the same time. good.

  FIG. 15 shows a bag filling device 400 comprising a film supply means 201, a bag making device 203, a bag body transport means 19, an insertion device 401 for inserting a flexible article 9 into the bag body 1, and a bag closing device 5. The outline is expressed. Here, the flexible article means a mask, a handkerchief, a towel or the like. Differences between the bagging device 400 and the second embodiment will be described below.

  As shown in FIGS. 16 and 17, the insertion device 401 includes a bottom surface member 405 for guiding the flexible article 9 in the horizontal direction, a contact member 413 disposed above the article 9 and extending in the horizontal direction, and a contact member 413. Contact member lifting and lowering means 415 for moving up and down, a pressing plate 419 pressed against the end portion 417 of the article 9 from the horizontal direction, and a horizontal movement for moving the pressing plate 419 in the directions of arrows I and O according to the contacting surface member 413. Moving means 421. The arrow I indicates the direction in which the contact member 413 enters the opening 7 of the bag 1, and the arrow O indicates the direction in which the contact member 413 exits from the opening 7 of the bag 1.

  The bottom member 405 is a smooth plate member that slidably receives the article 9 supplied from a feeder not shown in the drawing. Although the article 9 is illustrated as a mask having the rubber string 423, the use, material, or shape of the article 9 is not limited. Although two belts 25 of the bag body conveying means 19 appear in the figure, the bag body 1 is supported by a larger number of belts. Further, a suction pad 433 for sucking the upper surface 431 of the bag body 1 may be provided above the belt 25 in order to actively expand the opening 7 of the bag body 1.

  The contact surface member 413 has a pair of contact surface plates 441 extending from the hanging piece 437 at one end of the hanger 435 in the direction of the arrow I and spaced from each other in the direction orthogonal to the direction of the arrow I. The pushing plate 419 is attached to the hanging piece 443 at the other end of the hanger 435 in an upright posture via a driving source 445 described later. The contact member 413 and the hanger 435 are formed by bending a single steel plate. In this steel plate, an insertion port 447 is formed in a range extending from the hanging piece 437 to the contact surface member 413 so that the pushing plate 419 operated by the drive source 445 can escape in the directions of arrows I and O.

  The contact surface member lifting / lowering means 415 is obtained by connecting the driving source 449 to the connecting member 451 and joining the hanger 435 to the piston rod 453 of the driving source 449. The connecting member 451 is restricted from being raised and lowered by guide means for guiding it in the directions of arrows I and O. For this reason, when the drive source 449 operates the piston rod 453, the contact member 413 and the pushing plate 419 together with the hanger 435 are moved up and down with respect to the article 9 placed on the bottom surface member 405. The horizontal moving means 421 is illustrated as a drive source 457 in which the piston rod 455 is joined to the connecting member 451. However, the feed screw is rotated by an electric motor, and the force of linear movement of the ball nut screwed to the feed screw is connected. What transmits to the member 451 may be sufficient.

  Further, the insertion device 401 includes a pressing unit 461 for moving up and down a pressing member 459 having a spherical lower end, and a pressing unit 463 for moving the pressing plate 419 with respect to the hanger 435 in the directions of arrows I and O. The pressing means 461 is obtained by attaching a pressing member 459 to a piston rod 467 of a driving source 465 fixed to the housing above the bag body 1. When the drive source 465 operates the piston rod 467, the pressing member 459 moves up and down with respect to the bag body 1 supported by the belt 25 of the bag body conveying means 19. The pushing means 463 is obtained by attaching a driving source 445 to a hanging piece 443 of a hanger 435 and joining a pushing plate 419 to a piston rod 469 of the driving source 445.

  The operation of the bagging device 402 will be described below. Fig.19 (a)-FIG.21 (b) represent the bag body 1 and the contact surface member 413 as a cross section. The operation of the insertion device 401 is based on a program written in a storage medium that can be accessed by the computer that controls the drive source described above.

  First, a plurality of bag bodies 1 are sequentially formed in the bag making apparatus 203 shown in FIG. These bag bodies 1 are sucked by the belt 25 of the bag body conveying means 19 shown in FIG. On the other hand, the article 9 supplied from the aforementioned feeder is received by the bottom surface material 405. Then, the bag conveying means 19 causes the belt 25 to travel in the direction of the arrow T, and the belt 25 is stopped when the opening 7 of the bag 1 faces the article 9 received by the bottom material 405.

  As shown in FIG. 19A, the contact member 413 descends to a height close to the upper surface of the article 9 and advances in the direction of the arrow I. In this process, the pushing plate 419 presses against the end portion 417 of the article 9, so that the article 9 slides along the pushing plate 419 and enters the opening 7 of the bag body 1. When the entire article 9 has entered the bag body 1, as shown in FIG. 19B, the pushing plate 419 further advances in the direction of the arrow I with respect to the contact member 413 of the hanger 435 and the hanging piece 437. By doing so, the article 9 can be pushed into the interior of the opening 7.

  In the above process, the contact surface member 413 functions as a guide for restricting deformation of the article 9. For this reason, the effect that the wrinkles and the bending of the article 9 can be prevented at the stage where the article 9 is immersed in the opening 7 of the bag body 1 can be achieved. In addition, in the above process, a frictional force is generated between the article 9 and the contact member 413 so that the article 9 and the contact member 413 do not slide greatly with each other. This frictional force acts on the entire area of the article 9 in the range facing the contact member 413, and compared with the case where the article 9 is pushed into the opening 7 depending only on the pushing plate 419, the article 9 is moved to the opening 7. Since the force pushed into the product 9 is dispersed in the article 9, the above effect becomes remarkable.

  Subsequently, the pressing plate 419 retracts in the direction of the arrow O with respect to the contact surface member 413 of the hanger 435 and the hanging piece 437, and returns to a position that matches the hanging piece 437 as shown in FIG. To do. The pressing member 459 is lowered to a height at which the pressing member 459 is pressed against the bag body 1, and the contact surface member 413 is lifted from the article 9 as shown in FIG. The figure shows that the upper surface 431 of the bag body 1 is deformed into a concave shape by the pressing member 459 and the bag body 1 is pressed against the article 9. The article 9 ′ is newly supplied to the bottom material 405.

  As shown in FIG. 21 (a), the contact member 413 raised from the article 9 retracts in the direction of the arrow O and exits from the opening 7 of the bag body 1. In this process, the pressing member 459 does not have to rise. That is, the pressing member 459 relatively passes between the tips 439 of the pair of contact plates 441, so that the contact member 413 is detached from the pressing member 459. For this reason, since the pressing member 459 can keep the bag body 1 pressed against the article 9, a part of the article 9 is temporarily caught on the contacting member 413 when the contacting member 413 rises from the article 9 as described above. Even so, it is possible to prevent the article 9 from being pulled out of the bag body 1 as the contact surface member 413 moves backward in the direction of the arrow O.

  As shown in FIG. 21B, when the entire contact surface member 413 is pulled out from the opening 7 of the bag body 1 and the pushing plate 419 is slightly retracted from the end portion 417 of the article 9 ′, the contact surface member 413 is Stop. Thereafter, the contact surface member 413 is lowered to a height close to the upper surface of the article 9, and the insertion device 401 can repeat the above operation. Further, the point that the bag closing device 5 seals the opening 7 of the bag body 1 into which the article 9 is inserted as described above is the same as that of the second embodiment.

  The insertion device 401 described above is configured such that after the contact surface member 413 is lifted from the article 9 immersed in the opening 7 of the bag body 1, the contact surface member 413 is withdrawn from the bag body 1. The contact surface member 413 leaving the bag body 1 is not rubbed against the rubber cord 423. For this reason, the rubber cord 423 is not pulled out from the bag body 1 or the trouble such as twisting of the rubber cord 423 does not occur.

  It should be noted that the present invention can be implemented 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. The film supply means 201 and the bag making apparatus 203 may be omitted, and the article 9 may be inserted into an existing bag body. Further, the driving source 445 may be omitted and the pushing plate 419 may be fixed to the contact member 413. In this case, compared with the above example, the distance for the article 9 to enter the depth of the opening 7 is shortened, but the implementation of the present invention is not hindered.

  If there is no problem even if the article 9 rubs against the contact surface member 413, as shown in FIG. 19 (b), the contact surface member 413 moves up from the article 9 immersed in the opening 7 of the bag body 1. The contact surface member 413 may be raised after the entire contact surface member 413 comes out of the opening 7. Further, a check hair having a hair tip raised in the direction of arrow I may be implanted on the lower surface of the contact member 413. Such check hairs reduce the frictional force between the contact surface member 413 and the article 9 when the contact surface member 413 leaves the bag body 1 than when the contact surface member 413 enters the bag body 1. Can do.

  The present invention is a useful technique for transporting and positioning any article. In addition, the present invention is a technique useful for stuffing articles into a large number of bags, for example, when mailing a product catalog by direct mail, because articles can be inserted into a bag at high speed without depending on human hands. .

  DESCRIPTION OF SYMBOLS 1,103 ... Bag body, 3,105 ... Flap, 5 ... Bag closing device, 7,104 ... Opening part, 9,102 ... Article, 11 ... Base part, 13 ... Cam rail, 15 ... Guide bar, 17 ... Folding bar, DESCRIPTION OF SYMBOLS 18 ... Folding operation means, 19 ... Bag body conveyance means, 21 ... Standing means, 23 ... Guide bar opposing movement means, 25 ... Belt, 27 ... Air intake hole, 29 ... Cylinder, 31 ... Operation part, 33 ... Hanger, 35 ... Horizontal part, 41 ... movable bracket, 43 ... housing, 45 ... guide means, 47 ... slider, 49 ... bearing member, 51 ... support shaft, 53 ... driven member, 55 ... cam, 57 ... connecting shaft, 59, 85, DESCRIPTION OF SYMBOLS 95 ... Drive source, 61 ... Horizontal member, 63 ... Nut, 65 ... Adjustment bolt, 67 ... Front end part, 69 ... Roller, 71 ... Guide bar raising / lowering means, 73 ... Clamping piece, 75 ... Opening / closing means, 77 ... Tip 79 ... Abutting plate, 81 ... Advancing the abutting plate Means, 83 ... stem, 87, 97 ... piston rod, 89 ... lift plate, 91 ... rotary shaft, 93 ... mounting member, 99 ... inclined portion, 101 ... elastic member.

  DESCRIPTION OF SYMBOLS 200 ... Bag filling apparatus, 201 ... Film supply means, 203 ... Bag making apparatus, 213 ... Article supply means, 215 ... Insertion apparatus, 216, 218 ... Edge, 217 ... Film, 219 ... Heat cutter, 221 ... Location, 227 ... Slider, 229 ... Linear movement means, 231 ... Guiding means, 233,239 ... Standing part, 235 ... Pusher, 237 ... Frame, 241 ... Following holder, 243 ... Support, 245 ... Linear rail, 247 ... Cam rail, 249 ... Feed screw, 251 ... ball nut, 253 ... insertion claw, 255 ... feed claw, 257 ... driven roller, 269 ... roller, 259 ... guide rail, 261,263 ... flange, 265 ... rotary wheel, 267 ... endless belt, 271 ... Introducing portion, 273 ... sending portion, 275 ... support plate, 277 ... pin, 279 ... one end, 281 ... inclined , 283 ... the other end, 285 ... horizontal section, 287 ... insertion hole, 301 ... movable guide, 303 ... tip, 305 ... Pipe, 307 ... suction pad.

  400 ... Bagging device, 401 ... Insertion device, 405 ... Bottom material, 413 ... Contact surface member, 415 ... Contact surface member lifting means, 417 ... End, 419 ... Push plate, 220 ... Fold, 421 ... Horizontal movement means, 423 ... rubber strap, 431 ... upper surface, 433 ... suction pad, 435 ... hanger, 437, 443 ... hanging piece, 439 ... tip, 441 ... contact plate, 445, 449, 457, 465 ... drive source, 447 ... insertion port, 451: connecting member, 453, 455, 467, 469 ... piston rod, 459 ... pressing member, 461 ... pressing means, 463 ... pushing means.

Claims (9)

A bag closing device that extends from the opening of the bag body and folds back to the bag body a flap having a base connected to the opening,
A guide bar positioned at the base of the flap, a folding bar that engages the flap, and a folding operation means that moves the folding bar opposite to the direction in which the flap extends,
A bag closing device characterized in that the flap is bent in a direction to be folded back to the bag body with the guide bar as a fulcrum according to the movement of the folding bar by the folding operation means. The base of the flap is connected to the opening, and the bag extends in a direction perpendicular to the width direction of the bag body from the opening to support the bag body in a horizontal posture, and the flap is folded back to the bag body. A bag closing device,
Standing means for raising the flap of the bag body, a pair of guide bars positioned at the base of the flap and extending in the width direction, and a guide bar opposing movement for moving the pair of guide bars in opposite directions in the width direction Means, a folding bar extending in the width direction, and a folding operation means for moving the folding bar forward or backward in a direction perpendicular to the width direction,
The guide bar facing moving means moves the pair of guide bars in a direction approaching each other, and the folding bar advanced by the folding operation means uses the flap raised by the standing means as the fulcrum as the fulcrum. A bag closing device characterized in that the pair of guide bars are separated from the flap by bending in a direction to be folded back into a bag body and moving the pair of guide bars in a direction in which the guide bar facing movement means moves away from each other. . A guide bar elevating means for elevating the pair of guide bars;
When the guide bar opposing movement means brings the pair of guide bars closer to each other, the guide bar lifting means lowers the pair of guide bars to a height close to the base of the flap,
3. The closing according to claim 2, wherein when the guide bar facing moving means separates the pair of guide bars from each other, the guide bar lifting / lowering means raises the pair of guide bars higher than the bag body. Bag device. A clamping piece that faces the folding bar and moves forward or backward together with the folding bar by the folding operation means, and an opening / closing means that opens and closes between the folding bar and the clamping piece,
Between the folding bar and the sandwiching piece, a flap raised by the standing means is entered, and the opening / closing means closes the gap between the sandwiching piece and the folding bar, and the flap sandwiched between them is By pulling the folding bar according to the advance of the folding bar, the flap is folded back to the bag body, and the clamping piece and the folding bar are pulled by the tension generated in the direction in which the folding bar moves backward as a reaction force of the folding to the flap. The bag closing device according to claim 2, wherein the flap is pulled out from between the two. A contact plate disposed above the bag body in a posture in which a tip is directed to the opening of the bag body, and a contact plate advance / retreat means for moving the contact plate in a direction in which the folding bar moves forward or backward And
The folding operation means moves the folding plate in the state in which the abutting plate moves the abutting plate in the retreating direction of the folding bar and the tip of the abutting plate is brought close to the opening of the bag body. In the process of advancing the bar, the contact plate advance / retreat means moves the contact plate in the direction in which the folding bar advances, so that the bag and the flap folded back as the folding bar advances. The bag closing device according to claim 2, wherein the contact plate is retracted.   The bag closing device according to claim 1 or 2, wherein the folding bar has an elastic member that slides into contact with the flap folded back on the bag body. A film having edges on both sides in the width direction is conveyed in the longitudinal direction, and is folded in half so that the other edge extends from one edge of the both edges along the width direction of the film. A film supply means for stacking;
By pressing the heat cutter extending in the width direction of the film in the middle of the film in the longitudinal direction, the films overlapping the two folds are welded together by the heat of the heat cutter, and the film is divided in the middle of the length direction A bag-making apparatus that forms a bag body in which an opening is secured between the one edge and the other edge and the one edge extends as a flap from the opening;
An insertion device for inserting an article into the bag;
A bag closing device according to any one of claims 1 to 5,
A bagging device comprising: Comprising bag transport means for transporting the bag formed by the bag making apparatus;
The insertion device includes a linear motion means for reciprocating the slider so as to move forward or backward in the horizontal direction, a driven holder connected to the slider so as to be movable up and down, and holding the pusher, and an article at the same height as the bag body. A support rail that supports the follower holder in a horizontal direction, and a cam rail that guides the follower holder above the straight rail.
The bag body transporting means transports the bag body to a position where the opening of the bag body faces the article supported by the support, and the height of the pusher coincides with the article in the process of advancement of the slider. As described above, the follower holder is positioned by the linear rail, and the follower holder moves the cam rail so that the pusher passes above the article supported by the support in the process of retreating the slider. The bagging device according to claim 7, wherein the bagging device rises according to: Comprising bag transport means for transporting the bag formed by the bag making apparatus;
The insertion device includes a bottom member that slidably receives a flexible article in a horizontal direction, a contact member disposed above the article, a contact member elevating unit that raises and lowers the contact member, and the article. A pressing plate pressed from the horizontal direction, and a horizontal moving means for moving the pressing plate in the horizontal direction according to the contact surface member,
The bag body conveying means conveys the bag body to a position opposite to an article whose opening is received by the bottom surface material, and the contact surface member elevating means has a height close to the article. The horizontal movement means moves the contact surface member to a position where it enters the opening of the bag body, and the article is immersed in the opening of the bag body by the pushing plate. The bagging apparatus according to claim 7.

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