JP2008254322A - Inside screen interposition machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inside screen interposition machine for interpositioning an inside screen having a simplified structure, wherein a process up to interposition of an inside screen material molded in a reverse V shape in an open state into a corrugated board can be omitted. <P>SOLUTION: An inside screen interposition machine 1 for interpositioning an inside screeni is structured by an inside screen supplying mechanism 3 wherein inside screens P in an open state are laminated, a pre-molding mechanism 5 for molding a broken type structure which is molded into a small degree of a broken structure relative to an inside screen P supplied from the inside screen supplying mechanism 3 one by one and which determines a molding direction, and a molding-interposition mechanism 7, which transports a pre-molded broken inside screen P to an adjacent interpositioning position and molds it into a broken reverse V shape and interposition it into a corrugated board Q on the directly bottom position. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention divides agricultural products such as watermelons and melons to be boxed, and is inserted into a packaging container such as a corrugated cardboard box or a container in order to prevent generation of scratches or bruises due to contact between the agricultural products. The present invention relates to an insertion device for an intermediate partition (intermediate partition member), and more particularly to an intermediate partition insertion device that inserts the intermediate partition into a boxed container after being folded from a flat plate shape into an inverted V shape.

The partition divider inserter that folds the partition from a plate shape into an inverted V shape and inserts it into a container for packaging is formed into a flat plate shape by a supply mechanism in which the partitions are previously provided with folding lines. The developed partition is moved horizontally one by one and sent to the forming mechanism, folded in an inverted V shape, and further maintained in the inverted V shape to the upper position of the cardboard box. Is moved horizontally and the inverted V-shaped partition is lowered into the cardboard box and inserted by the insertion mechanism. Agricultural products are placed on the slopes on both sides of the inverted V-shaped partition, the slope of the partition is deformed by its weight, and the partition is deformed into a substantially inverted T-shape, so that there is a gap between the two agricultural products. It prevents the contact between the agricultural products by forming a partition that partitions (Patent Document 1).
JP 2000-289722 A

  The partition inserter described in Patent Document 1 described above includes a supply step by a supply mechanism, a forming step by forming into a folded shape by a forming mechanism to form an inverted V shape, and a formed partition by a transfer mechanism. There are four steps, a transfer step of transferring and an insertion step of inserting the partition into the cardboard box, and the processing capacity does not increase.

  Among these four steps, the transfer step maintains the inverted V shape from the forming mechanism to the upper position of the cardboard box and moves it by the transfer mechanism, so that the time required for this transfer step decreases the overall processing capacity. It becomes a factor inviting.

  In addition, the transfer mechanism is configured to slide in a state in which both opening ends of the partition are in contact with the opposing guide members in order to horizontally transport the partition while maintaining the inverted V shape. If the partition member formed of paperboard such as cardboard is damp or the shape of both open ends of the partition is broken, there is a risk that the partition member cannot slide smoothly.

  The present invention has been made in view of such a conventional problem, and can be a device having a simple structure with reduced processes, and can reliably insert a partition member bent into an inverted V shape into a packaging container. It aims at providing a partition insertion machine.

  The first configuration of the partition insertion machine that realizes the object of the present invention is to form the developed partition member into an inverted V-shaped final shape and wait for the final formed partition member downward from the insertion position. A partition insertion machine that inserts into a packaging container that is supplied from the partition supply mechanism and the partition supply mechanism that intermittently supplies the partition members in a deployed state one by one in a horizontal posture. The intermediate partition member in a horizontal position is transported to a predetermined stop position on the transport path, and the intermediate partition member is folded in advance into a shape that is inclined more gently than the final shape, with the middle folding portion of the intermediate partition member protruding upward. Narrowing the distance between the front and rear ends in the movement direction of the intermediate partition member while moving the preformed intermediate partition member toward the insertion position provided in front of the conveyance end of the conveyance path and the intermediate folding member; At the insertion position The partition member is molded into a predetermined final shape, and the front and rear end portions of the intermediate partition member of the final molded shape are locked by the locking members provided before and after the insertion position to maintain the final molded shape. And a molding insertion mechanism for inserting the partition member into the lower packaging container.

  The second configuration of the partition insertion machine that realizes the object of the present invention is the first configuration described above, and the intermediate folding preforming mechanism is a middle folding portion of the partition member that is stationary on the conveyance path. It is characterized by having a crease imparting means for bending and forming a crease.

  The third configuration of the partition insertion machine that realizes the object of the present invention is the above-described second configuration, in which the crease imparting means includes a die portion and a press arranged opposite to each other above and below the conveyance surface of the conveyance path. And a plunger member, wherein the press plunger member pushes up the middle bent portion of the partition member upward and engages with the mold portion, and the bent portion is bent.

  A fourth configuration of the partition insertion machine that realizes the object of the present invention is any one of the above-described configurations, and the molding insertion mechanism has a pair of left and right shutter members that are open toward a lower side in a horizontal position. A rear end of the preformed partition member formed in an engaging portion provided in an endless rotating conveyor that forms the conveying path. The partition member is moved from the conveyance end until the front end of the partition member comes into contact with the front locking member that forms a stopper, and the rear end portion of the partition member is further moved to the engagement portion. The intermediate partition member is formed into a final molded shape by moving the intermediate partition member to the conveyance end position, and the rear end portion of the partition member is disengaged from the engagement portion of the conveyance conveyor and engaged with the rear locking member. It is characterized by that.

  The fifth configuration of the partition insertion machine that realizes the object of the present invention is the above-described fourth configuration, wherein the pair of left and right shutters are in a closed state between the front locking member and the rear locking member. The upper surface of the member forms a conveyance surface of the tip portion of the partition member.

  The sixth configuration of the partition insertion machine that realizes the object of the present invention is the above-described fourth or fifth configuration, and when the pair of left and right shutter members open downward, the partition insertion standby stands by at the partition insertion standby position. It is characterized by engaging the left and right flaps of the packaging container and opening the flaps outward.

  The seventh configuration of the partition insertion machine that realizes the object of the present invention is any one of the configurations described above, wherein the molding insertion mechanism is a cap that fits the top of the final molding shape that is locked at the insertion position. It has insertion means which has a part in a lower end part, maintains fitting with the above-mentioned partition member, and lowers the above-mentioned cap part toward a container for packing.

  An eighth configuration of the partition insertion machine that realizes the object of the present invention is the seventh configuration described above, wherein the insertion means moves up and down in conjunction with the opening / closing operation of the shutter member.

  According to a ninth configuration of the partition insertion machine that realizes the object of the present invention, in any one of the fourth to eighth configurations described above, the shutter member includes a partition member inserted into a packaging container. A notch is formed to avoid interference with the upper part of the substrate.

    According to a tenth configuration of the partition insertion machine that realizes the object of the present invention, in any one of the configurations described above, the final shape of the partition member is the distance between the front end and the rear end. It is characterized in that it is set shorter than the interval.

  In an eleventh configuration of the partition insertion machine that realizes the object of the present invention, in any one of the configurations described above, the intermediate folding preforming mechanism abuts against the tip of the partition member and moves the partition member to the A plurality of stoppers for positioning and stopping at a predetermined stop position are arranged according to the size of the partition member.

    In a twelfth configuration of the partition insertion machine that realizes the object of the present invention, in any one of the first to tenth configurations described above, the center folding preforming mechanism is in contact with the tip of the partition member. A stopper for positioning and stopping the partition member at the predetermined stop position can be changed in accordance with the size of the partition member.

  According to the present invention, by attaching a crease in the partition member in advance, the final shape of the inverted V shape can be obtained by simply moving the rear end portion toward the tip portion where the movement of the partition member is stopped. Since it can shape | mold on the insertion position of a partition member, a middle partition insertion machine can be made into a simple structure, and the time required from supply of a partition member to insertion in the container for boxing can be shortened.

  Further, since the partition member supplied from the partition supply mechanism can be continuously conveyed in one direction from the folding pre-former to the molding insertion mechanism, the partition member is transferred from the folding preliminary molding mechanism to the molding insertion mechanism. In synchronization with the movement, the partition member can be supplied from the partition member supply mechanism to the intermediate folding preforming mechanism, thereby improving the processing capacity.

  In addition to the effects described above, the following effects are obtained.

  According to the invention which concerns on Claim 2, since a folding center preforming mechanism should just crease a partition member, it does not require highly accurate shaping | molding.

  According to the invention which concerns on Claim 3, the mechanism used for general press molding can be used as a crease | fold giving means, and a crease can be attached to the middle fold part of a partition member reliably.

  According to the fourth aspect of the present invention, the partition member can be locked so as to straddle the insertion position when it is molded into the final molded shape, and the partition member is immediately placed in the boxing container as soon as the shutter member is opened. Can be inserted.

  According to the invention which concerns on Claim 5, a shutter member can be utilized as a conveyance surface of the front-end | tip part of a partition member.

  According to the sixth aspect of the present invention, the left and right flaps of the packing container waiting for the shutter member at the partition insertion standby position can be expanded so as not to interfere with the insertion of the partition member.

  According to the seventh aspect of the present invention, it is possible to insert the partition member into the packaging container while maintaining the size of the final molded shape locked at the insertion position.

  According to the invention which concerns on Claim 8, a partition member can be smoothly inserted in the container for packaging.

  According to the ninth aspect of the present invention, the shutter member can be reliably closed.

  According to the invention of claim 10, the partition member can be smoothly inserted into the packaging container, and after the insertion, the partition member is expanded by the elastic restoring force and fits in the packaging container without looseness. .

  According to the invention which concerns on Claim 11, 12, since the length of the longitudinal direction differs according to the size of packaging containers, such as a corrugated cardboard box, the positioning of a partition member is carried out in the middle folding pre-forming The position is also changed, and a stopper is provided in accordance with the changed position, or the position of the stopper is changed, so that the size change of the partition member can be quickly handled.

  Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

First Embodiment FIGS. 1 to 9 show a first embodiment of the present invention.

  1 is a front view of a partition insertion machine, FIG. 2 is a top view of FIG. 1, and FIGS. 3 and 4 are front views of the middle folding preforming mechanism of FIG. 3 is a cross-sectional view taken along the line AA in FIG. 3, and FIGS. 6 and 7 are front views of the molding insertion mechanism that performs the middle folding main molding and the insertion of the partition member in FIG. 1 before the middle folding main molding and the middle folding book. FIG. 8 is a cross-sectional view taken along arrow B-B in FIG. 7, FIG. 9 shows a partition preferably used in the partition inserter of this embodiment, and FIG. An exploded perspective view, (b) shows a state in which a partition is inserted into the boxing container, and (c) shows a state in which the agricultural products are boxed in the boxing container.

  The partition member P shown in FIG. 9 is formed of corrugated cardboard, is formed in a rectangular flat plate shape in the unfolded state, has an engagement hole P1 for preforming at the center in the longitudinal direction and the lateral direction, and is further engaged. Holes P2 for promoting the lodging are formed on both sides in the longitudinal direction of the hole P1, and folds (incisions) P3 for middle folding shown by broken lines are formed from the four corners of the engagement hole P1. The folding folds P4 indicated by broken lines are formed from the four corners of the hole P2 for promoting the lodging.

  As shown in FIG. 9B, when the partition member P of the present embodiment is inserted into the corrugated cardboard box Q, which is a container for packaging, in an inverted V-shape that is convex upward, The height of the partition member P is set to be higher than the box body Q1 and lower than the upper end of the flap Q2 with the flap Q2 set up.

  Then, when the produce R is placed on the slopes on both sides of the partition member P in the state shown in FIG. 9B, the slope part of the partition member P is folded along the folding fold P4 with its weight, The partition member P is lowered to fit in the box body Q1.

  The partition inserter 1 according to the present embodiment is slightly inside the partition supply mechanism 3 in which the partition members P in a deployed state are stacked and the partition member P supplied one by one from the partition supply mechanism 3. Folding and forming the middle folding preforming mechanism 5 for determining the middle folding forming direction and the middle folding preformed partition P are conveyed toward the adjacent insertion position, and when they reach the insertion position, they are inverted V-shaped. It is formed by a molding insertion mechanism 7 that is molded into a half-folded state and inserted into the cardboard box Q directly below.

  The empty cardboard box Q is transported on a cardboard box transport conveyor line 9 disposed below the transport position for transporting the partition member P of the partition inserter 1 horizontally, and is pushed out on the upstream side in the transport direction. As a result, the transport direction is changed by 90 degrees and transported toward the partition insertion position 92, stopped by the standby stopper 94, and waits at the partition insertion position 92. The empty cardboard box Q in which the partition P is inserted is discharged to the cardboard box supply conveyor line 93 and supplied toward the boxing portion of the agricultural product sorting and sorting apparatus (not shown).

  The configurations of the partition divider supply mechanism 3, the middle folding preforming mechanism 5, and the molding insertion mechanism 7 will be described below.

Configuration of the partition supply mechanism 3 (see FIGS. 1 and 2)
The partition supply mechanism 3 is configured such that a large number of unfolded partition members P are stacked at the stacking position on the supply conveyor 31 with the longitudinal direction being front and back, and a supply regulating member 32 is provided at the front end of the stacking position. By forming a gap through which one intermediate partition member P can pass between 31 and the supply regulating member 32 and intermittently driving the supply conveyor 31, the intermediate partition members P are folded one by one into the preforming mechanism 5. Supply.

  Side wall plates 33 are provided on both sides of the stacking position of the partition members P, and the uppermost partition member P is pushed downward by the pressing cylinder 34 so that the lowest partition member P is placed on the supply conveyor 31. So that it can be reliably bent and supplied to the preforming mechanism 5.

Configuration of the intermediate folding preforming mechanism 5 (see FIGS. 3, 4, and 5)
The intermediate folding preforming mechanism 5 has a conveyance path 51 that takes over and conveys the partition member P supplied by the supply conveyor 31. The conveyance path 51 is provided with a narrow belt conveyor 54 provided with one engagement portion 53 on the outer surface side of the narrow endless belt member 52 facing the left and right in the conveyance direction, and a conveyance rail 55. The slide plate 55 a is disposed between the conveyance conveyor 55 of the supply conveyor 31 and the narrow belt conveyor 54 and the conveyance rail 55 are formed in a preforming space 56.

  The narrow belt conveyor 54 is arranged on the conveyance start end side at a slight distance from the conveyance end of the supply conveyor 31, and carries the left side portion of the supplied partition member P for conveyance. At this time, the right side portion of the partition member P slides on the slide plate 55a and is guided to the transport rail 55, and the tip of the partition member P comes into contact with the positioning stopper 57 disposed on the transport end side and moves. Stop. Until the movement of the partition member P is stopped by the positioning stopper 57, the engaging portion 53 of the endless belt member 52 is not engaged with the rear end of the partition member P, and the leading end of the partition member P is positioned. When a positioning sensor (not shown) detects contact with the stopper 57, driving of the narrow belt conveyor 54 is stopped by a control device (not shown).

  In a state where the middle partition member P is positioned at a predetermined position on the transport path 51, a pressing body 58 that presses the rear end portion of the middle partition member P onto the transport rail 55 is disposed on the upstream side of the transport path 51. Lifting of the rear end portion of the middle partition member P is prevented. The pressing body 58 has a pinch roller 58b rotatably attached to the distal end portion of the arm member 58a, and an arm member 58a attached to the attachment member 1a protruding from the main body frame of the partition inserter 1 at a position higher than the conveyance path 51. Yes. The pinch roller 58b is spring-biased by the urging mechanism (not shown) to the conveyance rail 55, and the supplied partition member P pushes the pinch roller 58b upward against the spring force to pinch the roller 58b and the conveyance rail 55. Move between. The arm member 58a is driven by an actuator such as an air cylinder instead of a mechanism for biasing the arm member 58a in the pressing direction by a biasing spring (not shown), and the pinch roller 58b is raised when the partition member P passes. The pinch roller 58b may be lowered during positioning.

  When the middle partition member P comes into contact with the positioning stopper 57, the narrow belt conveyor 54 pushes the middle partition member P slightly to stop driving, so that the positioning stopper 57 and the tip of the middle partition member P are in a pressurized state. Since the contact is made without a gap, the engagement hole P1 of the partition member P is positioned at a predetermined position where a projection 59h of a press plunger member 59g described later is engaged.

  Two positioning stoppers 57 are provided on the front and rear sides in the transport direction so as to correspond to two types of partition members P having different lengths in the longitudinal direction. Both positioning stoppers 57 have the same structure, and an air cylinder 57b in which the piston rod 57a moves in the vertical direction is used as a driving means, and an L-shaped engagement in which the tip of the partition member P is engaged with the upper end of the piston rod 57a. The member 57c is attached, and the engaging member 57c is positioned below the transport surface of the transport path 51 in a state where the piston rod 57a is lowered.

  On the other hand, a folding press machine 59 is disposed below the conveyance surface of the conveyance path 51 so as to face the preforming space 56, and the mold part is opposed to the folding press machine above the conveyance surface. 60 is placed facing downward.

  The intermediate folding pre-press machine 59 fixes a cylinder body 59b having a front cylinder part and a rear cylinder part to a base 59a, and connects a front link member 59d from the front end of the piston rod 59c of the front cylinder part to the rear. Then, the rear link member 59f is connected to the front from the front end of the piston rod 59e of the rear cylinder portion, and the front link member 59d and the front end of the rear link member 59f are connected to the press plunger member 59g to form a pantograph-like link. Forming mechanism.

  When the piston rods 59c and 59e are driven in the retracting direction at the same time in the front cylinder portion and the rear cylinder portion, the press plunger member 59g is moved from the retracted position below the conveyance surface of the conveyance path 51 to the upper reserve beyond the conveyance surface. It pushes straight up toward the mold part 60 arranged at the molding position. Here, the mold part 60 is supported and guided so as to be movable from the preforming position to the upper detection position, and when a stop sensor (not shown) detects that the mold part 60 has reached the detection position, the press plunger The raising operation of the member 59g is stopped. When the piston rods 59c and 59e are driven in the extending direction from the detection position, the press plunger member 59g is lowered straight to the retracted position.

  The press plunger member 59g has a convex portion 59h having an outer shape substantially matching the engagement hole P1 of the partition member P shown in FIG. 9A. As shown in FIG. 3, the press plunger member 59g is in the retracted position. When it rises directly above, the projection 59h of the press plunger member 59g engages with the engagement hole P1 of the partition member P positioned by the positioning stopper 57 and the pinch roller 58b, and the longitudinal direction of the partition member P The central part of the inner partition member P is pushed upward, the partition member P is lifted as a whole, and the convex part 59h of the press plunger member 59g is inserted into the mold part 60.

  At this time, since the rear end of the partition member P is pressed by the pinch roller 58b that is spring-biased, the pinch roller 58b is also lifted against the spring biasing force as the partition member P rises as a whole. .

  The mold part 60 has a concave part 60a into which the convex part 59h of the press plunger member 59g enters, and a mountain-shaped slope part 60b formed from the front and rear ends of the opening edge of the concave part 60a toward the front and the rear, By partitioning the partition member P between the mold part 60 and the press plunger member 59g at the pre-molding position, the partition is formed between the front and rear slope parts 60b of the mold part 60 and the slope part 59i of the plunger member 59g. The peripheral part of the engagement hole P1 of the member P is sandwiched, and the intermediate partition member P is folded and preformed along the folding line P3 formed around the engagement hole P1 of the partition member P. . In the intermediate folding preliminary molding, the partition member P is molded into a shape that is folded at a gentle slope.

  As shown in FIG. 4, when the press plunger member 59g is lowered to the retracted position, the mold part 60 is also lowered, for example, to the initial preforming position by its own weight. This preforming is not so much as to plastically deform the partition member P, and when the engagement with the press plunger member 59g is released, the floated partition member P is again placed on the transport path 51, As the inclination of the inclined surface is further moderated by its own weight and elastic restoring force, the middle-folded preformed partition member P placed on the conveyance path 51 is a die whose apex is at the initial position of the preforming. It is lower than part 60.

  In this way, the intermediate folding preforming performs the middle folding forming that gives a crease with a degree of crease to the partition member P, and the partition member P is placed on a gently sloping surface having a low height. Pre-mold.

  With the press plunger member 59g lowered to the retracted position, the positioning stopper 57 is lowered from the conveying surface of the conveying path 51, and the positioning stopper 57 is disposed between the conveying rail 55 and the narrow belt conveyor 54. The intermediate partition member P that is bent and preformed does not hinder the movement of the positioning stopper 57 over the conveying path 51 toward the forming and inserting mechanism 7.

  When the intermediate folding member P is finished and the leading end and the trailing end of the partition member P are placed in contact with the transport rail 55 of the transport path 51 and the narrow belt conveyor 54, the narrow belt conveyor 54 is driven, The engagement portion 53 of the narrow belt conveyor 54 is engaged with the rear end portion of the intermediate partition member P, and the intermediate partition member P that has been folded and preformed is pushed from the rear end side. It moves toward the molding insertion mechanism 7 by the conveying force.

Configuration of molding insertion mechanism 7 (see FIGS. 6, 7, and 8)
An opening 72 closed by a shutter device 71 is formed in the forward direction from the conveyance end of the conveyance rail 55 and the narrow belt conveyor 54 constituting the conveyance path 51 provided in the intermediate folding preforming mechanism 5. A partition insertion position 92 is set directly below the opening 72.

  The shutter device 71 has a left shutter member 71 a and a right shutter member 71 b in the left-right direction when viewed in the transport direction of the transport path 51, and the left shutter member 71 a and the right shutter member 71 b are closed in a horizontal posture by an opening / closing drive device 73. It is driven to open and close between the position and the open position opened 90 degrees downward.

  The opening / closing drive device 73 has a drive unit 73a disposed further forward than the opening 72 when viewed in the transport direction of the transport path 51, and the drive unit 73a drives an air cylinder device (not shown) to The drive rod members 73b extending in the directions are reciprocated linearly. The distal end portion of the rotating lever member 73c is connected to the distal end portion of the left and right drive rod members 73b.

  On the other hand, rotation support shafts 73d are arranged along the front-rear direction at the left and right opening edges of the opening 72, and the left shutter member 71a and the right shutter member 71b are fixed to the left and right rotation support shafts 73d, respectively. By rotating 73d, the left shutter member 71a and the right shutter member 71b can be opened and closed between a closed position and an open position.

  The left rotation support shaft 73d is fixed to the base end of the left rotation lever member 73c, and the right rotation support shaft 73d is fixed to the base end of the right rotation lever member 73c. When the shutter members 71a and 71b are in the horizontal closed position, the distal ends of the left and right rotating lever members 73c are located on the side of the base end portion, and the left and right drive rod members 73b are in the extended position. When the left and right drive rod members 73b are pulled in, the left and right rotating lever members 73c rotate inward, and the left and right shutter members 71a and 71b are opened downward via the left and right rotating support shafts 73d to open the openings. 72 is opened.

  In the horizontal posture in which the left and right shutter members 71a and 71b are closed, the upper surfaces of the left and right shutter members 71a and 71b are located below the conveyance surface of the conveyance path 51, and in this embodiment, the end side of the narrow belt conveyor 54 The pulley 54a is lowered by the height of the radius.

  The intermediate partition member P that is folded and preformed so as to move toward the molding and insertion mechanism 7 so as to be pushed from the rear side by the engaging portion 53 of the narrow belt conveyor 54 has its tip portion left and right of the conveyance path 51 left and right. It moves forward while sliding on the shutter members 71a and 71b.

  A fixed abutting guide member 74 is provided at the front end edge of the opening 72, and the front ends of the partition members P that slide on the left and right shutter members 71 a and 71 b abut against the abutting guide member 74. The movement of the front end portion of the partition member P stops.

  Even if the front end of the middle partition member P abuts against the abutting guide member 74, the rear end of the middle partition member P is pushed forward by the engaging portion 53 of the narrow belt conveyor 54. As shown in FIG. 6, the intermediate partition member P that has been subjected to the intermediate folding pre-formation is such that the inclination of the inclined surface that is bent in the middle increases as the rear end portion of the intermediate partition member P approaches the front end portion and the intermediate folding portion. The middle-folded main molding is executed.

  When the engagement portion 53 of the narrow belt conveyor 54 reaches the conveyance end position, the engagement portion 53 starts to rotate downward along the outer peripheral surface of the end-side pulley 54a of the narrow belt conveyor 54, and the engagement portion When 53 is moved to a position that is substantially at the same level as the upper surfaces of the left and right shutter members 71a and 71b in the horizontal posture, the engagement with the rear end of the partition member P is released.

  A rear end guide member 75 is provided between the narrow belt conveyor 54 and the transport rail 55 slightly forward from the transport end of the transport path 51, and the partition member P from which the engagement with the engagement portion 53 is released. The rear end of the rear end is bent and returns to the front end surface of the rear end guide member 75 by the elastic restoring force accompanying the main forming. Note that the next flat plate-shaped partition member P is transported from the supply mechanism 3 toward the center-folding preforming mechanism 5 in accordance with the start of transport of the center-folding member P that has been folded and preformed by the engaging portion 53.

  As shown in FIG. 6, the abutting guide member 74 and the rear end guide member 75 are provided on the front and rear sides of the opening 72, and the upper inclined surface 74a extends upward from the substantially same level position as the upper surfaces of the shutter members 71a and 71b. 75a, and the lower side from the upper inclined surfaces 74a, 75a is formed into lower inclined surfaces 74b, 75b slightly projecting inwardly toward the lower side, and the intermediate partition member P formed into a middle shape is inclined upward. The surfaces 74a and 75a are locked to the lower ends of the surfaces 74a and 75a in a temporarily held state.

  That is, an elastic restoring force directed toward the outside in the front-rear direction acts on the front and rear end portions of the lower end of the partition member P that has been folded in the main shape, and this elastic restoring force is divided upward with respect to the upper inclined surfaces 74a and 75a. Since the force acts, the partition member P is held and held by the upper inclined surfaces 74a and 75a of the abutting guide member 74 and the rear end guide member 75, and does not fall due to its own weight.

  This holding state is simply a temporary holding state in which the partition member P is placed on the abutting guide member 74 and the rear end guide member 75, and the left and right shutter members 71a and 71b of the shutter device 71 are in the open state. When the half-folded top is pushed downward, the front end and the rear end of the partition member P move while sliding from the upper inclined surfaces 74a, 75a to the lower inclined surfaces 74b, 75b, and enter the partition insertion position 92. It is inserted into the cardboard box Q immediately below that is waiting.

  The half-folded and finally formed partition member P that is temporarily held in an inverted V shape so as to straddle the opening 72 is pushed downward by the insertion device 76 provided above and waits at the partition insertion position 92. It is inserted into the cardboard box Q just below.

  The insertion device 76 includes an air cylinder 76b in which a piston rod 76a is disposed downward, and a cap member 76c having an inverted V-shaped cross section fixed to the lower end of the piston rod 76a. The cap member 76c is fitted to the middle folding top of the middle partition member P. The cap member 76c is guided in the vertical direction by guide rods 76d provided on the left and right.

  The middle folding angle of the inverted V-shaped cross section of the cap member 76c matches the middle folding angle α of the middle partition member P in the temporary holding state, and the middle folding angle when the middle partition member P is disposed in the cardboard box Q. When the cap member 76c is fitted to the middle folding top of the temporarily holding partition member P, it is inserted into the cardboard box Q while maintaining the middle folding angle α. This prevents the opposing distance between the part and the rear end object from being increased, and the cardboard box Q cannot be inserted into the cardboard box Q. The lowering speed of the cap member 76c is made faster than the falling speed of the partition member P, so that the state in which the middle folded top portion of the partition member P is fitted to the cap member 76c is maintained and the partition member P is corrugated. It can be inserted into the box Q. After inserting the partition member P, the cap member 76c immediately rises and returns to the initial position to prepare for the next insertion.

  Before lowering the cap member 76c of the insertion device 76, the left and right shutter members 71a and 71b of the shutter device 71 are opened, but the left and right flaps Q2 of the empty cardboard box Q waiting at the partition insertion position 92 are Although it is transported while standing upward, the left and right flaps Q2 may be tilted inward and transported. In this case, since the left and right shutter members 71a and 71b rotate from the inside to the outside, the left and right flaps Q2 that are tilted inward are raised to correct the substantially upright posture, and the insertion of the partition member P is prevented. I am trying not to become.

  Further, after inserting the partition member P into the cardboard box Q, the left and right shutter members 71a and 71b are returned to their original horizontal positions, but interference with the upper part of the partition member P inserted into the cardboard box Q is avoided. Therefore, the left and right shutter members 71a and 71b are provided with notches 77.

  The engaging portion 53 of the narrow belt conveyor 54 is drawn to have a thickness substantially the same as the thickness of the partition member P in the drawing, but is not limited to this. It may be longer than the thickness of the partition member P within the range of the gap with the left shutter member 71. In this case, when the engagement between the engaging portion 53 and the rear end portion of the partition member P is released, the rear end portion of the partition member P is surely reached to the upper surface level of the left and right shutter members 71a and 71b in the horizontal posture. Since it can engage, the rear-end part of the partition member P can be reliably contact | abutted to the predetermined position of the upper inclined surface 75a of the rear-end guide member 75. FIG.

  In the present embodiment, side guide plates 11 are provided on both the left and right sides of the opening 72 of the molding insertion mechanism 7 from the left and right sides of the conveyance path 51 of the folding preforming mechanism 5, and the movement of the partition member P between them is guided. In addition, work safety is maintained.

  As described above, the partition insertion machine 1 according to the present embodiment is preliminarily folded in a state in which the flat partition members P supplied one by one from the partition supply mechanism 3 are stationary on the transport path 51. Preliminary folding is performed by a machine 59 so that it can be bent, and when it is moved to the molding insertion mechanism 7, the folding main molding is performed by bending, and when the molding insertion mechanism 7 is reached, the folding main molding is performed. After completion, the next partition member P is also in a standby state for the center folding preforming by the center folding pre-forming mechanism 5, and by sequentially performing this, the partition member P is continuously placed in the empty cardboard box P. Can be inserted.

Second Embodiment FIG. 10 shows a second embodiment of the present invention.

  In the first embodiment, two positioning stoppers 57 provided on the folding intermediate preforming mechanism 5 are provided before and after the conveying direction in order to position corresponding to two types of partition members P having different lengths in the longitudinal direction. In this embodiment, only one positioning stopper 57 is provided, and one positioning stopper 57 can be reciprocated back and forth in the transport direction. The positioning stopper 57 is moved back and forth by a moving cylinder device 57d.

  In each of the above-described embodiments, an air cylinder is exemplified as various actuators. However, the present invention is not limited to this, and may be motor drive, hydraulic drive, or the like.

The front view which shows 1st Example of the partition insertion machine by this invention. The top view of FIG. FIG. 2 is a front view of the middle folding preforming mechanism of FIG. FIG. 2 is a front view of the middle folding preforming mechanism of FIG. FIG. 4 is a cross-sectional view taken along arrow AA in FIG. 3. FIG. 1 is a front view of the partition forming / inserting mechanism shown in FIG. FIG. 2 is a front view of the partition forming / inserting mechanism of FIG. BB arrow sectional drawing of FIG. The partition used suitably for the partition insertion machine of 1st, 2nd Example is shown, (a) is the perspective view developed to flat form, (b) inserted the partition into the container for packaging. The state (c) shows a state in which agricultural products are boxed in a boxing container. The front view of the center bending preforming mechanism which shows 2nd Example of this invention.

Explanation of symbols

P Middle partition member P1 Engagement hole P2 Lodging promotion hole P3 Middle folding fold P4 Lodging fold Q Cardboard box Q1 Box body Q2 Flap R Agricultural product 1 Partition divider insertion machine 1a Mounting member 11 Side guide plate 3 Middle partition supply mechanism 31 Supply conveyor 32 Supply restriction member 33 Side wall plate 34 Pressing cylinder 5 Folding preforming mechanism 51 Conveying path 52 Endless belt member 53 Engaging portion 54 Narrow belt conveyor 54a End side pulley 55 Conveying rail 55a Slide plate 56 Preliminary Forming Space 57 Positioning Stopper 57a Piston Rod 57b Ar Cylinder 57c Engaging Member 57d Moving Cylinder Device 58 Pushing Body 58a Arm Member 58b Pinch Roller 59 Middle Bending Preliminary Press 59a Base 59b Cylinder Body 59c Piston Rod 59 Front link members 59e piston rod 59f after linking member 59g press the plunger member 59h protruding portion 59i inclined surface portion 60 mold portion 60a recess 60b slope portion
DESCRIPTION OF SYMBOLS 7 Molding insertion mechanism 71 Shutter apparatus 71a Left shutter member 71b Right shutter member 72 Opening part 73 Opening / closing drive device 73a Drive part 73b Drive rod member 73c Rotating lever member 73d Rotating support shaft 74 Butting guide member 74a Upper inclined surface 74b Lower inclined Surface 75 Rear end guide member 75a Upper inclined surface 75b Lower inclined surface 76 Insertion device 76a Piston rod 76c Cap member 77 Notch 9 Cardboard box transport conveyor line 91 Extrusion cylinder 92 Middle partition insertion position 93 Cardboard box supply conveyor line

Claims (12)

A partition insertion machine for forming a partition member in an unfolded state into a final shape of an inverted V shape, and inserting the finally formed partition member into a packaging container waiting downward from an insertion position,
A partition supply mechanism for intermittently supplying the partition members in a deployed state one by one in a horizontal posture;
The horizontal partitioning partition member supplied from the partitioning supply mechanism is transported to a predetermined stop position on the transporting path, and the middle folding part of the partitioning member is convex upward so that the center part has a gentler slope than the final shape. A middle folding preforming mechanism for preforming the partition member in a middle folding;
While moving the preformed intermediate partition member toward the insertion position provided in front of the conveyance end of the conveyance path, the distance between the front and rear ends in the movement direction of the partition member is reduced, and the partition at the insertion position is reduced. The member is molded into a predetermined final shape, and the front and rear end portions of the partition member of the final molded shape are locked with locking members provided before and after the insertion position, and the final molded shape is maintained. A molding insertion mechanism for inserting the partition member into the lower packaging container;
A partition insertion machine characterized by comprising:   2. The fold-preliminary forming mechanism includes a crease imparting unit that folds a middle fold portion of a partition member that is stationary on the conveyance path to form a crease. 3. Partition inserter.   The crease imparting means is constituted by a mold part and a press plunger member which are arranged opposite to each other above and below the conveyance surface of the conveyance path, and the press plunger member pushes up the middle fold part of the partition member upward and 3. The partition inserter according to claim 2, wherein the partition inserter is engaged with a mold portion and the bent portion is bent. The molding insertion mechanism has shutter means that can open and close the insertion position formed in the space by a pair of left and right shutter members that open in a horizontal position in a closed position and open downward.
The front end of the intermediate partition member from the end of conveyance by engaging the rear end of the preformed intermediate partition member with an engagement portion provided on an endless rotating conveyor that forms the conveyance path. The partition member is moved until the leading end of the partition member comes into contact with the locking member, and the rear end portion of the partition member is moved to the conveyance end position by the engagement portion to form the partition member into a final molded shape, The partition insertion machine according to any one of claims 1 to 3, wherein a rear end portion of the partition member is disengaged from an engagement portion of the conveyor and engages with the rear locking member. .   5. The upper surface of the pair of left and right shutter members in a closed state between the front locking member and the rear locking member forms a conveyance surface of a front end portion of the partition member. Partition inserter.   5. The pair of left and right shutter members, when opened downward, engages with the left and right flaps of the packaging container waiting at the partition insertion standby position to open the flaps outward. Or the partition insertion machine of 5.   The molding insertion mechanism has insertion means having a cap portion at a lower end portion that fits with a top portion of a final molding shape that is locked at an insertion position, and maintains the fitting with the partition member and the cap. The partition insertion machine according to any one of claims 1 to 6, wherein the part is lowered toward the packaging container.   The partition insertion machine according to claim 7, wherein the insertion means moves up and down in conjunction with an opening and closing operation of the shutter member.   9. The partition divider insertion machine according to claim 4, wherein the shutter member is formed with a cutout portion that avoids interference with an upper portion of the partition member inserted into the packaging container. .   The final partition shape of the partition member is set such that the distance between the front end and the rear end is set shorter than the distance between the front and rear sides of the packaging container. Machine.   The center-folding preforming mechanism includes a plurality of stoppers arranged in contact with a tip of the partition member and stopping the partition member at the predetermined stop position according to the size of the partition member. Item 10. A partition insertion machine according to any one of Items 1 to 10. The intermediate folding preforming mechanism can change the arrangement position of a stopper that contacts the tip of the intermediate partition member and stops the intermediate partition member at the predetermined stop position according to the size of the intermediate partition member. 11. A divider inserter according to any one of claims 1 to 10, characterized in that:

Images