JP2006021786A - Craft packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a craft packaging machine capable of packing saddle stitching books certainly without employing a special technique. <P>SOLUTION: The packaging apparatus (10) comprises a packaging paper wrapping section, at which an article (M) to be packed is moved vertically and a packaging paper (P) is folded along the lower and side faces of the article to be packed into a U-shape, and a packaging paper folding section, at which one side face of the U-shaped packaging paper is bent toward the upper face of the article to be packed and then, while the article to be packed is transferred horizontally, the end face of the packaging paper is bent along the end faces of the article to be packed to form ears (Ef and Eb), the side edges of packaging paper that are on the upper face of the article to be packed are joined together, and both ears (Ef and Eb) are folded to be joined together. A controller (11), upon receiving data inputted on the size, shape, thickness, and number of the saddle stitching books to be packaged, determines a packing height H, sets an upper face bending position of the packaging paper on the basis of the packing height H, and changes a lowered position, an ear forming position, and a horizontal transfer height of the article to be packed, using the upper face bending position as a reference position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a craft packaging machine, and more particularly to a machine for packing a saddle-stitched book such as a weekly magazine in which a plurality of books are stacked with kraft paper.

  As shown in FIG. 8, the stacked saddle-stitched book has a lower center when viewed from the top and bottom, and becomes higher toward the left and right. For kraft paper packaging, the operator determines the height of the package in anticipation of the difference d, adjusts the craft packaging machine based on this, performs test packaging, repeats these, and then performs main packaging. ing. However, the difference d between the height A and the center height B differs depending on the size and paper quality of each book, and also differs depending on the elapsed time since stacking. Need.

As one solution to such a problem, there has been provided a packaging machine that packs a package without loosening by constantly compressing and transporting a packaged item with a belt conveyor (see, for example, Patent Document 1).
JP-A-8-244718

  However, in this packaging machine, when the package is fed, the saddle stitch book at the uppermost part and the lowermost part and the belt conveyor are in direct contact with each other, so that the front cover or the back cover may be easily damaged. For this reason, a highly skilled technique is essential for setting the pressing force of the belt conveyor.

  Therefore, an object of the present invention is to obtain a craft packaging machine capable of reliably packing a saddle stitch book without having a special technique.

  In order to achieve the above object, a kraft packaging machine according to claim 1 is a kraft packaging apparatus which packs a saddle stitch book stack as a package and wraps it with kraft paper as wrapping paper. A wrapping paper winding means for vertically moving the packaged material and folding the wrapping paper in a U shape along the lower and side surfaces of the package; and one side surface of the U-shaped wrapping paper toward the upper surface of the package After bending, while horizontally transporting, bend the end face of the wrapping paper along the end face of the package to form ears, join between the side edges on the upper surface of the package in the wrapping paper, fold both ears, Set the packaging height based on the wrapping paper folding means that binds the folded ears, the format, thickness, and the number of packaging of the saddle-stitched book, and the top surface bending position of the wrapping paper is determined based on the packaging height. Package based on the upper surface bending position Lowered position, by a control means for changing the selvedge position and horizontal transport height is obtained by solving the above problems.

  The craft packaging machine according to claim 2 is the craft packaging machine according to claim 1, wherein the wrapping paper wrapping means packs a package and a pedestal carrying the wrapping paper on which the wrapping paper is loaded, The above-mentioned problem is solved by providing a wrapping member disposed along a hoistway of a hoisting base that wraps a wrapping paper in a U shape so as to wrap the lower surface and side surfaces of an object.

  The craft wrapping machine according to claim 3 is the craft wrapping machine according to claim 1 or 2, wherein the wrapping paper folding means folds one side surface of the U-shaped wrapping paper toward the upper surface of the package. A first upper surface folding member disposed at a lowering position of a lifting platform that moves between a position and a position to be withdrawn, and horizontally moves toward the package at the lowering position to bend the wrapping paper, and On the extension line of the first ear forming member disposed at the lowering position of the lifting platform forming the horizontal plane, the horizontal transport mechanism for horizontally moving the package, and the first upper surface bending member at the operating position along the horizontal transport path A second upper surface bending member that bends the other side surface of the wrapping paper toward the upper surface of the package disposed on the package, and a fixing material and a fixing material disposed corresponding to the bending by the first upper surface bending member in the operating position. A second ear forming means arranged along a horizontal conveyance path which is formed of a movable movable material capable of changing a distance to the package, and which bends the other end surface of the package in the wrapping paper to form the other ear; A first tape applicator disposed along a horizontal conveyance path that joins between side edges located on the upper surface of the packaged paper, and an ear folding member disposed along the horizontal conveyance path that folds both ears. And the second tape applicator disposed along the horizontal conveyance path for joining the folded ears, the above-mentioned problems are solved.

  The craft wrapping machine according to claim 4 is the craft wrapping machine according to claim 3, wherein the horizontal conveyance mechanism includes a first horizontal conveyance means and a second horizontal conveyance means, and the first horizontal conveyance means is A pair of pressing members that move the package to the second horizontal conveying means by pressing the side surface of the U-shaped wrapping paper, the second horizontal conveying means contacting the upper surface of the package and the belt conveyor A belt conveyor that is in contact with the lower surface and is adjusted in height by a control device, wherein the second upper surface bending member, the first ear forming member, and the first tape applicator are arranged horizontally of the first horizontal conveying mechanism. The above problem is solved by arranging the ear folding member and the second tape applicator in the horizontal conveying path of the first horizontal conveying mechanism in the conveying path.

  The craft wrapping machine according to claim 5 is the craft wrapping machine according to claim 4, wherein the second upper surface folding member pre-bends the other side surface of the wrapping paper when horizontally transporting the package. The above-described problem is solved by including a member having

  The craft wrapping machine according to claim 6 is the craft wrapping machine according to claim 4, wherein each of the first and second tape attaching means comprises a support base and a tape head that can be raised and lowered, The tape head includes a cam roller and a tape roller that holds the tape, and the support base includes a cam surface that rotates the tape head when lowered and presses the tape roller against the wrapping paper via the tape. Is a solution.

  The craft wrapping machine according to claim 1 is a wrapping paper wrapping means for vertically moving a package placed on a wrapping paper and folding the wrapping paper into a U shape along the lower and side surfaces of the package, and an upper surface of the package. Bending one side of the U-shaped wrapping paper toward the surface, then forming the ears by bending the end face of the wrapping paper along the end face of the package while horizontally transporting it on the top surface of the package on the wrapping paper The packing height H is set based on the wrapping paper folding means that joins between the side edges, folds both ears, and joins the folded ears, and the format, thickness, and number of packing sheets of the saddle stitch book. And a control means for determining the upper surface bending position of the wrapping paper based on the packing height H, and changing the lowering position of the package, the ear formation position and the horizontal conveyance height based on the upper surface bending position. The format, thickness, and number of packaging for the saddle stitch book When the force, the control apparatus determines the packing height H, for performing the operation and positioning members related in the packaging device, easy anyone, perform a constant packing. Moreover, since the packing paper is tightly wrapped around the bottom and side surfaces of the package using gravity, the packing paper is folded and fixed, the ears are formed, and the ears are fixed. You can do this with energy.

  The craft wrapping machine according to claim 2 is characterized in that the wrapping paper wrapping means wraps the wrapping paper so as to wrap the lower surface and the side surface of the packing material when the wrapping means carries the package and the wrapping paper on which the wrapping paper is carried, and the elevator table is lowered In addition to the effect of the kraft packaging machine according to claim 1, in addition to the effect of the craft packaging machine, the packaging paper of the bottom surface and the side surface of the package is provided. Can be reliably wound.

  The craft wrapping machine according to claim 3 includes a lifting / lowering platform that moves the wrapping paper bending means between an operating position for bending one side surface of the U-shaped wrapping paper toward the upper surface of the package and a position for retreating from it. A first upper surface bending member arranged at the lowered position and a first arranged at the lowered position of the lifting platform that horizontally moves toward the package at the lowered position to bend the wrapping paper and form one ear Ear forming member, horizontal transport mechanism for horizontally moving the package, and the other side of the wrapping paper toward the upper surface of the package disposed on the extension line of the first upper surface folding member at the operating position along the horizontal transport path A second upper surface bending member that bends the side surface, a fixed member disposed corresponding to the bending by the first upper surface bending member in the operating position, and a movable member that can change a distance to the fixing member. Horizontal connecting the second edge forming means arranged along the horizontal conveying path for folding the other end face of the package in the paper to form the other ear and the side edge located on the upper surface of the package in the wrapping paper The first tape applicator disposed along the conveyance path, the ear folding member disposed along the horizontal conveyance path for folding both ears, and the horizontal conveyance path for coupling the folded ears. By providing the second tape applicator, the packing paper can be folded and fixed, the ears can be formed, and the ears can be fixed, and the tape can be applied to the folded ears accurately and reliably. .

  In the craft packaging machine according to claim 4, the horizontal conveyance mechanism is composed of a first horizontal conveyance means and a second horizontal conveyance means, and the first horizontal conveyance means presses the side surface of the U-shaped wrapping paper and packs it. A pair of pressing members that move the second horizontal conveying means to the second horizontal conveying means, and the second horizontal conveying means contacts the upper surface of the package and the lower surface of the package, and the height is adjusted by the control device. A belt conveyor, and the second upper surface bending member, the first ear forming member, and the first tape applicator are attached to the horizontal conveying path of the first horizontal conveying mechanism on the ear folding member and the second tape. Since the container is arranged in the horizontal conveyance path of the first horizontal conveyance mechanism, in addition to the effect described in the above-mentioned claims, the first and second without the pressing member loosening the wrapping paper wrapped around the package. Wrapping paper with top-side folded material Bend towards the upper surface of the packed work, because perform the work operation for forming one of the ear by binding and the first ear forming means folded packaging paper edges, it is possible to obtain a more loose without packing.

  In the craft packaging machine according to claim 5, the second upper surface bending member includes a member having flexibility to pre-bend the other side surface of the wrapping paper when the package is horizontally conveyed. In addition to the effects described in the section, the package can be wrapped with kraft paper by simply moving the package horizontally and passing through the second upper surface bending member, and further reliable packaging can be performed. .

  In the craft packaging machine according to claim 6, the first and second tape affixing means each comprises a support base and a tape head that can be raised and lowered, and the tape head holds the cam roller and the tape. In addition to the effect of the above-mentioned claim, the support base is provided with a cam surface that rotates the tape head by its lowering and presses the tape roller against the wrapping paper via the tape. By simply raising and lowering the tape, the tape can be attached to the wrapping paper, and the packaging can be performed more firmly.

  Hereinafter, an embodiment of the craft packaging machine of the present invention will be described with reference to the drawings.

  FIG. 7 shows a packing process by the craft packing machine of the present invention, and the package M is a stack of saddle-stitched books such as weekly magazines.

  First, the package M, which is a saddle stitch book stack, is placed on the wrapping paper P made of kraft paper and lowered as shown in FIG. As shown in FIG. 5B, it is folded in a U-shape along the side surface of the package M or the small edge of the saddle stitching book.

  Next, as shown in FIG. 7C, the wrapping paper P has one side surface folded on the front cover or the back cover of the saddle stitching book on the upper surface or the upper portion of the package M. Is folded along the end face of the package M or the top and bottom of the saddle-stitched book stack, so that the ear Ef is formed.

  Then, as shown in FIG. 7D, the other side of the wrapping paper P is folded on the front cover or the back cover of the saddle-stitched book on the upper surface or the upper portion of the package M. As shown in (E), the other end face is bent along the top and bottom of the saddle stitch book to form the ear Eb.

  Thereafter, as shown in FIG. 7 (F), the edge located on the upper surface of the package M in the wrapping paper P is joined by the tape Tt, and the ears Ef and Eb are connected as shown in FIG. 7 (G). As shown in FIG. 7H, the ears Ef and Eb are joined by the tape Te.

  Next, the kraft packaging machine of the present invention will be described with reference to FIGS.

  When the package M is loaded from one end of the carry-in mechanism 20 including the carry-in conveyor 21 and the turntable 22 made of a belt conveyor, the package M is conveyed toward the turntable 22. The turn table 22 has a feed groove 23, which is slightly wider than the small width of the package M. An extruder 24 having a push plate fixed to the power cylinder and the telescopic rod is disposed at the transport end of the carry-in conveyor 21, and the package M is pushed out into the feed groove 23 by the extruder 24, leading to the top and bottom. Then, it is sent out to the positioning table 41.

  The positioning table 41 is disposed between the end of the turn table 22 and the lifting table 42 that constitutes the wrapping paper winding means. Around the positioning table 41, a plate-like abutment 43 and an extruder 44 are disposed. Yes. The abutment 43 extends from the end of the feed groove 23 toward the lifting platform 42, and the one edge of the package M fed from the turn table 22 is positioned by the abutment 43. The pusher 44 has a power cylinder and a push plate fixed to the rod, and is disposed at the end of the positioning table 41, and sends the package M to the lift table 42 by expansion and contraction of the rod.

  The elevating table 42 carries the package M and the wrapping paper P carrying the same, and moves up and down between an upper position where the surface coincides with the surface of the positioning table 41 and a lower position where the surface coincides with the surface of the transfer table 45 described later. can do. In the upper position, the plate-like abutment 43 and the plate-like abutments 46 and 47 are arranged so as to surround three sides of the package M, and the package M is positioned.

  A shutter plate 48 on which the package M that has been fed is placed is disposed at an interval on the lift 42, and the shutter plate 48 is placed at an upper portion of the lift 42 shown in FIG. Can be moved horizontally between. In addition, a pusher 49 having a power cylinder and a push plate fixed to the telescopic rod is provided at the top of the lift 42 so as to press the package M from above.

  A wrapping paper supply mechanism 50 for feeding the kraft paper, which is the wrapping paper P, one by one to the lift 42 is disposed on the side of the lift 42, and includes a cassette, a paper separating unit, a paper feed unit, and the like. . The cassette stores kraft paper in a stacked state. The paper separating unit is incorporated in the cassette and feeds air between the kraft papers to separate the kraft papers. The paper feeding unit is composed of, for example, a plurality of rollers, and conveys the kraft paper between the lifting platform 42 and the shutter plate 48 when the lifting platform 42 is in the upward movement position.

  A winding member 46A and a winding member 56 constituting wrapping paper winding means are disposed below the lifting platform 42 along the hoistway, and the winding member 46A is formed by an extension portion extending below the abutment 46. It is composed. The winding member 56 is composed of an L-shaped member in cross section, and is used to bend the wrapping paper P in the U shape together with the winding member 46A. The winding member 56 forms a space corresponding to the small width of the package M and is parallel. Has been placed.

  The wrapping paper folding means includes the first upper surface folding member 51, the first ear forming member 54, the first horizontal conveying mechanism including the pressing members 52 and 53, the second upper surface bending member 57, and the second ear forming. A member 58, a first tape applicator 59, a horizontal transport mechanism 71, an ear folding member 72, and a second tape applicator 73 are provided.

  The first upper surface bending member 51 is for horizontally bending one vertical side surface of the wrapping paper P bent by the extension portion of the abutting 46. A drive mechanism including a power cylinder can be moved between an operating position where one side surface of the U-shaped wrapping paper P is bent toward the upper surface and a position where the U-shaped wrapping paper is retracted. In the normal state, the drive mechanism tilts the first upper surface bending member 51 obliquely upward as shown in FIG. 2. However, in the operating state, the drive mechanism is leveled on the package M as it is after being leveled. It moves and bends the wrapping paper P to return it to its original position.

  The first ear forming member 54 is disposed at the lowered position of the lifting / lowering base 42 and bends one end face of the wrapping paper P to fold the wrapping paper P that forms one ear Ef to form one ear Ef. It has a folding arm 54 ′ extending toward the side surface of the package M.

  The first ear forming member 54 is held on the moving table 55 so as to be horizontally movable, and is coupled to a nut of a ball screw 54A held on the moving table 55, so that the electric motor 54B installed on the moving table 55 has a ball. When the screw 54A is moved back and forth, it can reciprocate on the moving table. A coil spring is disposed between the first ear forming member 54 and the pressing member 55.

  In addition, the both sides of the wrapping paper P are clamped to prevent the wrapping paper P from spreading, and in order to horizontally transport the lowered packaged goods M, the elevator 42 in the lowered position is faced and pressed. Members 52 and 53 are arranged.

  The pressing member 52 is fixed to a nut of a ball screw 52A held by the pressing member 53. The electric motor 52B installed on the pressing member 53 rotates the ball screw 52A. The width between can be changed. The pressing member 53 is fixed to the moving base 55.

  The moving table 55 reciprocates between the lower side of the lifting table 42 at the lowered position and the starting end of the horizontal transfer mechanism 71 by the power cylinder, descends to the lower part of the base 45, and rises to the upper part of the base 45. be able to. That is, the moving table 55 moves the pressing members 52 and 53 and the first ear forming member 54 from the lifting table 42 to the vicinity of the end of the transport table 45, descends to the lower part of the base 45, and has the width of the lifting table 42. After returning the corresponding distance, the distance is raised to the original position, moved toward the end of the distance transfer table 45 corresponding to the width of the lifting platform 42, lowered again to the lower portion of the base 45, and returned to the original position. be able to.

  The second upper surface bending member 57 is for bending the opposite side surface of the U-shaped wrapping paper P of the package M conveyed horizontally by the pressing members 52 and 53 together with the elastic member 56A toward the upper surface of the package. The first upper surface bending member 51 is disposed on the extended line along the horizontal conveyance path and in the operating position. The elastic member 56A has a weight that allows the wrapping paper P to be bent and is flexible, and is made of, for example, a rubber plate. The end of the elastic member 56A is coupled to the elastic member 56A. When horizontally transported by 52 and 53, the upper part of the wrapping paper P is preliminarily bent.

  The second ear forming member 58 is for forming the ear Eb on the remaining side in the transport direction, and as shown in FIG. 2, is composed of a fixed material at the top and a movable material at the bottom. The fixing material is arranged along the transport table 45 corresponding to the height of the first upper surface bending member 51 in the operating position. The movable material is arranged so as to be movable up and down along the transport table 45, and is coupled to a nut of a ball screw. The electric motor rotates the ball screw, so that the distance to the fixed material can be changed. The front end interval between the fixed member and the movable member is narrower than the height of the package M, and the rear end interval corresponds to the height of the package M. The second upper surface bending member 57 is carried on the distal end side of the second ear forming member 58.

  The first tape applicator 59 is disposed in the vicinity of the second ear forming member 58 or the end of the transport table 45. This tape applicator 59 is for connecting the upper ends of the wrapping paper P, which are horizontally bent by the first upper surface bending member 51 and the second upper surface bending member 57, as shown in FIG. A base 61 and a tape head 62 are provided. When the position of the package M is detected by an optical sensor or the like and the support base 61 is lowered by the power cylinder, the tape is attached to the cam surface 64 of the support base 61 as indicated by the chain line. At the same time, the tape head 62 rotates, the pressure rollers 65 and 66 on the tape head are sequentially pressed against the package M, the tape T is adhered to the wrapping paper, and the tape T is cut by the tape cutter 67. It is done by doing.

  The horizontal transport mechanism 71 is for taking over the package M from the pressing members 52 and 53 and transporting it horizontally, and is composed of a pair of belt conveyors as shown in FIG. The lower conveyor can be moved up and down by a power cylinder or the like.

  The ear folding member 72 folds the ears Ef and Eb, and is disposed on both sides of the horizontal transport mechanism 71. The ear folding member itself is made of a plate-like material disposed on both sides of the horizontal transport mechanism 71 so as to form an interval related to the vertical width of the package M. The formation of the ear Eb is such that when the package M passes through the ear folding member 72, the tip of the ear folding member 72 hits the packaging paper P, the folding paper P is folded, and the remaining portion of the ear folding member 72 is folded. It is done by maintaining.

  The second tape applicator 73 connects the ears Ef and Eb, and is disposed near the end of the horizontal transport mechanism 71. The second tape applicator 73 is configured in the same manner as the first tape applicator 59.

  The carry-out conveyor 31 carries the extruded package M out of the kraft packaging machine, and is composed of, for example, a belt conveyor arranged such that the lower conveyor and the conveyance surface of the horizontal conveyance mechanism 71 coincide with each other. The pusher 32 is disposed at the end of the horizontal conveyance mechanism 71 and is activated when the optical sensor detects the arrival of the package M, and pushes the package M onto the carry-out conveyor 31.

  The control means 11 obtains the height of the package M based on the format, thickness and number of packages of the saddle stitch book which is the package M, and determines the operation amount of the actuator that moves the related mechanism in the packaging apparatus 10. Each actuator is sent a signal to the drive circuit to perform packing. explain in detail.

When the operator inputs the packaging mode, that is, the format, thickness, and number of packages of the saddle stitch book to be packaged, from the outside, the control unit 11 first calculates the packing height H. In the calculation, for example, when the total height of the package M is A and the center height is B, the packing height H is obtained by the following equation.
H = [(A−B) / C] + B (1)
In this case, values A and B are obtained by referring to the table and thickness of the saddle-stitched book, and C is a constant with C = 3 as a standard. The value of can also be input externally.

  The control means 11 determines the lowering position of the lifting platform 42 from the packing height H, controls the drive circuit of the electric motor that drives the lifting platform, adjusts the height of the lifting platform 42, and moves the movable platform 55. The power cylinder that moves up and down, the electric motor of the ball screw that moves up and down the movable material of the second ear forming member 58, and the power cylinder that moves up and down the lower conveyor of the horizontal transport mechanism 71 are actuated. With reference to the lower surface of the upper surface bending member 57, the movable base 55 that supports the first ear forming member 54, the movable material of the second ear forming member 58, and the lower conveyor of the horizontal transport mechanism 71 are lifted and lowered in FIG. The distance L shown is set. Further, the control device 11 operates the wrapping paper supply mechanism 50 to pull out the wrapping paper P from the cassette and convey it onto the lifting platform 42. The operation of the wrapping paper supply mechanism 50 is stopped when the optical sensor detects the leading edge of the wrapping paper P.

  When an operator mounts the package M on the carry-in mechanism 20 and presses the start switch, the optical sensor detects the package M, the electric motor of the carry-in conveyor 21 is activated, and the package M is turned over from the top. Convey toward 22. When reaching the turn table 22, the optical sensor operates the power cylinder of the pusher 24 to feed the package M into the feed groove 23 of the turn table 22. The package M is sent to the positioning table 41 with the forefront as the head, and is positioned by the abutment 43. When positioned, the pusher 44 moves the package M onto the shutter plate 48, and the package M is positioned by the abutment 43, 46, 47.

  When the package M is transferred to the shutter plate 48, the optical sensor operates the power cylinder of the shutter plate 48 and pulls out the shutter plate 48. The package M is placed on the wrapping paper P on the lifting platform. The optical sensor detects the mounting, and the control device 11 activates the depressing device 49 to depress the package M, and activates the power cylinder of the elevator 42 so that the elevator 42 is placed with the package M and the packing paper P placed on it. Is lowered.

  As shown in FIG. 4, when the lifting platform 42 is lowered as shown in FIG. 4, the wrapping paper P is extended by the winding member 46 </ b> A, the winding member 56, and the pressing member 53 as shown in FIG. It is bent upward along the side surface of the package M. The pusher 49 pushes the package M even when the lifting platform 42 is lowered to a predetermined position, and removes the air between the saddle stitch book and the saddle stitch book constituting the package M. When a certain period of time has elapsed, the control device 11 returns the pusher 49 to the original position, operates the ball screw 52A and the electric motor 52B, horizontally moves the pressing member 52, and passes the wrapping paper P together with the pressing member 53. And sandwich the package M. The wrapping paper P is maintained in a U-shaped bent state. Subsequently, the control device 11 operates the power cylinder of the first upper surface folding plate 51, moves the first upper surface folding plate 51 to the operating position, and places one side surface of the wrapping paper P on the upper surface of the package M. Bend at a right angle. After bending, it is returned to its original position. As a result, one side of the package M is wrapped with the wrapping paper P. Then, the control device 11 operates the electric motor 54B, moves the first ear forming member 54 by the ball screw 54A, and pushes the folding arm 54 ′ on the portion of the wrapping paper P that protrudes from the end surface of the package M, Ear Ef is formed. FIG. 7C shows the state at this time.

  Then, the control device 11 operates the electric motor that drives the moving table 55 to move the moving table 55 horizontally, and horizontally moves the pressing members 52 and 53 and the first ear forming member 54 to the vicinity of the end of the conveying table 45. To do. As shown in FIG. 5, the rising portion on the opposite side of the wrapping paper P is pre-bent by the elastic member 56A and is bent at a right angle when passing through the second upper surface bending member 57, as shown in FIG. As shown, the opposite side of the package M is wrapped. At the same time, the second ear forming member 58 folds the horizontally bent portion of the wrapping paper P to form the opposite ear Eb as shown in FIG.

  When the package M reaches the vicinity of the end of the carriage 45, the optical sensor detects this. The control device 11 lowers the first tape applicator 59 by a signal from the optical sensor, affixes the tape Tt to the bent edge of the wrapping paper P as shown in FIG. To fix. When pasting is completed, the control device 11 returns the first tape applicator 59 to its original position, operates the power cylinder that moves the moving table 55, and moves the moving table 55 downward, moves to the opposite side, and moves up. After the pressing member 53 is brought into contact with the side surface of the package M, the moving table 55 is moved to cause the pressing member 53 to push the package M to the horizontal transport mechanism 71. When pushed out, the control device 11 operates the power cylinder of the moving table 55 to lower the moving table 55 and horizontally move it toward the lifting table 42, and the holding members 52 and 53 and the first ear forming member 54 are moved. Return to the original position.

  On the other hand, when the package M is fed into the horizontal conveyance mechanism 71, the control device 11 operates the belt conveyor of the horizontal conveyance mechanism 71. The package M is horizontally conveyed toward the ear folding member 72. During horizontal conveyance, the ear folding member 72 folds the ears Ef and Eb. When the package M is transported to the second tape applicator 73 and the optical sensor detects the position of the package M, the control device 11 stops the belt conveyor of the horizontal transport mechanism 71, and the second tape is pasted. Actuator 73 is activated. The tape Te is affixed to the ears Ef and Eb of the package M, and the ears Ef and Eb are joined as shown in FIG. When pasting is completed, the control device 11 operates the horizontal conveyance mechanism 71 to convey the package M toward the end of the horizontal conveyance mechanism 71. When the vicinity of the end is reached, the optical sensor detects the package M, and the control device 11 stops the horizontal conveyance mechanism 71 and activates the pusher 32 of the carry-out device 30. The package M is sent out to the carry-out conveyor 31. When the optical sensor detects the delivery, the carry-out conveyor 31 is operated, and the package M is conveyed to the outside of the craft packaging machine.

  In the embodiment described above, the packing height H of the package M is obtained by the equation (1), but is not limited to this equation, and other equations can be used.

Explanatory drawing which shows the whole structure of the craft packaging machine of this invention. Explanatory drawing which looked at a part of the kraft packaging machine shown in FIG. 1 from the side. The front view of the tape sticking means in alignment with line 3-3 in FIG. Explanatory drawing which shows the packing state of the craft packaging machine shown in FIG. Explanatory drawing which shows the following packing state of the craft packaging machine shown in FIG. Explanatory drawing which shows the further next packaging state of the craft packaging machine shown in FIG. Explanatory drawing which shows the packaging process in the craft packaging machine shown in FIG. The figure explaining the bending state of the integrated saddle stitch book.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Packaging apparatus 11 Control apparatus 20 Carry-in mechanism 21 Carry-in conveyor 22 Turning table 23 Feed groove 24 Extruder 30 Carry-out apparatus 31 Carry-out conveyor 32 Extruder 41 Positioning table 42 Lifting table 43 Butting 44 Extruder 45 Conveying table 46 Butting 47 Abutting 48 Shutter plate 49 Depressor 50 Wrapping paper supply mechanism 51 First upper surface folding plate 52 Holding member 52A Ball screw 52B Electric motor 53 Holding member 54 First ear forming member 54A Ball screw 54B Electric motor 55 Moving base 56 Winding member 56A Elasticity Member 57 second upper surface bending member 58 second ear forming member 59 first tape applicator 61 support base 62 tape head 63 cam roller 64 cam surface 65 pressure roller 66 pressure roller 67 tape cutter 71 horizontal conveyance machine 72 ear folding member 73 second tape putting unit Ef ear Eb bent ears M packed P wrapper Te tape Tt Tape

Claims (6)

A kraft packaging device that packs a saddle-stitch book stack as a package and wraps it with kraft paper as wrapping paper,
Wrapping paper winding means for vertically moving the package placed on the wrapping paper and folding the wrapping paper into a U shape along the lower and side surfaces of the package, and the U-shaped wrapping paper toward the upper surface of the package After bending one side of the wrapping paper, the edge of the wrapping paper is bent along the end face of the package while horizontally transporting to form an ear, and the side edges on the top of the package in the wrapping paper are joined together, Folding means that folds the ears and wraps the folded ears, sets the packing height H based on the format, thickness and number of packing sheets of the saddle-stitched book, and packs based on the packing height H A craft wrapping machine comprising: a control means for determining an upper surface bending position of paper and changing a lowered position, an ear forming position, and a horizontal conveyance height of a package based on the upper surface bending position.   The wrapping paper wrapping means includes a lifting platform for carrying the package and the packaging paper on which the packaging paper is mounted, and a lifting platform for folding the packaging paper in a U shape so as to wrap the lower surface and the side surface of the packaging when the lifting platform is lowered. The craft packaging machine according to claim 1, further comprising a winding member disposed along the hoistway.   The first wrapping paper folding means is disposed at a lowering position of a lifting platform that moves between an operation position for folding one side surface of the U-shaped wrapping paper toward the upper surface of the package and a position for retreating from the operation position. The top folding member, the first ear forming member disposed at the lowered position of the lifting platform that horizontally moves toward the package at the lowered position and bends the wrapping paper, and the package horizontally A horizontal conveying mechanism that moves, and a second upper surface bending member that bends the other side surface of the wrapping paper toward the upper surface of the package disposed on the extension line of the first upper surface bending member that is in the operating position along the horizontal conveying path. The other end of the package on the wrapping paper, comprising a fixed material arranged corresponding to the bending by the first upper surface bending member in the operating position and a movable material capable of changing the distance to the fixed material The second ear forming means arranged along the horizontal conveying path that forms the other ear by bending the sheet and the horizontal conveying path that joins between the side edges located on the upper surface of the package in the wrapping paper. The first tape applicator, the ear folding member arranged along the horizontal conveyance path for folding both ears, and the second tape applicator arranged along the horizontal conveyance path for joining the folded ears The craft packaging machine according to claim 1, wherein the craft packaging machine is provided.   The horizontal transport mechanism includes a first horizontal transport unit and a second horizontal transport unit, and the first horizontal transport unit presses a side surface of the U-shaped wrapping paper and moves the package to the second horizontal transport unit. Comprising a pair of pressing members to be moved, the second horizontal conveying means being in contact with the upper surface of the package, and a belt conveyor in contact with the lower surface of the package, the height of which is adjusted by a control device, The second upper surface bending member, the first ear forming member and the first tape applicator are in the horizontal transport path of the first horizontal transport mechanism, and the ear folding member and the second tape applicator are the first horizontal The craft packaging machine according to claim 3, wherein the craft packaging machine is arranged in a horizontal conveyance path of the conveyance mechanism.   5. The craft packaging according to claim 4, wherein the second upper surface bending member includes a member having flexibility to pre-bend the other side surface of the wrapping paper when the package is horizontally conveyed. Machine.   Each of the first and second tape attaching means includes a support base and a tape head that can be moved up and down, and the tape head includes a cam roller and a tape roller that holds the tape, and the support base is lowered. The craft wrapping machine according to claim 3, further comprising a cam surface that rotates the tape head to press the tape roller onto the wrapping paper via the tape.

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