JP2020090319A - Box flap expanding device - Google Patents

Abstract

To provide a box flap expanding device that has a simple structure and can easily respond to box size changes.SOLUTION: Above a habit forming part S2 on which a holding body 18 holding a box 10 is positioned, an abutting member 20 moves up and down between a retracted position Ha above the opening of the box 10 and an inner position Hb surrounded by flaps 14a, 14a, 16a, 16a. And in a state where the abutting member 20 is positioned at the inner position Hb, the holding body 18 is moved in the front and rear or left and right directions, and creases are formed so that the flaps 14a, 14a, 16a, 16a on four sides are pressed against the abutting member 20 and expanded outward, becoming a state of tilting and expanding outside with the folding lines of the connection part with side panels 14,16 being the base points.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box flap expanding device before packing, in which a flap extending from an opening of the box is narrower than the opening and is not tilted inward when supplying an article to a box such as a cardboard box. ..

A flap that expands outward by connecting each side panel of the box in the opening where one side that is the supply side of the article is opened and the bottom is sealed by making a flat folded cardboard box into a rectangular tube shape However, it may have a habit of falling inside the opening. In such a case, when the articles are collectively fed into the box, the articles interfere with the flaps, which causes a problem that the boxes are not properly packed. Therefore, various devices (Patent Document 1) have been proposed in which the flaps are expanded outward in advance prior to the supply of articles. In the device disclosed in Patent Document 1, the engaging member is provided in a radial direction on each of the four rotation shafts arranged in a square shape in accordance with the opening of the box, and the four rotation shafts are rotated simultaneously. By doing so, the flaps on the four sides bent inward of the opening are expanded outward so that the articles do not interfere with the flaps when the articles are supplied.

Japanese Patent Laid-Open No. 61-287523

In the device disclosed in Patent Document 1, although four flaps can be expanded outward at a time, when the size of the box is changed, the positions of the four rotary shafts are changed, the position of the drive system is adjusted, and parts are It is very complicated and difficult to deal with, such as requiring replacement. Further, it is pointed out that four types of expanding means for expanding the individual flaps to the outside are required, which complicates the structure.

It is therefore an object of the present invention to provide a box flap expanding device that has a simple structure and can easily cope with a size change of the box.

The box flap expanding device of the invention according to claim 1 of the present application is
First flaps (14a, 14a) extending from a pair of opposing first side panels (14, 14) of a box (10) formed in a rectangular tube shape and one of which is open, and the first side panel (14) , 14) a second flap (16a, 16a) extending from a pair of second side panels (16, 16) that intersect and face each other, and a box flap expanding device for expanding the box flap,
A holder (18) for holding the box (10),
In the peculiar part (S2) for expanding the flaps (14a, 16a), an inner position (Hb surrounded by the first and second flaps (14a, 16a) of the box (10) held by the holding body (18) ), and the holder (18) with respect to the contact member (20) at the inner position (Hb), in the facing direction of the first side panel (14, 14) and The first and second flaps (14a, 16a) applied to the abutting member (20) and the first and second side panels (14, 16) in the opposite direction of the second side panel (16, 16) And a moving means (22) for moving to a position (MF, MR, NL, NR) spreading outward from the connection part of.
According to the invention of claim 1, the holder holding the box is moved so that the flap is pressed against the contact member so that the flap can be expanded outward to give a crease. The structure can be made simpler than the structure in which each type of expanding device is provided. Further, since the box is held by the holding body, it is possible to favorably form the flap so that the flap is expanded outward. Furthermore, the size of the box can be easily changed by changing the amount of movement of the holding body by the moving means.

In the invention according to claim 2, with respect to the box (10) held by the holding body (18) in the habit forming portion (S2), the contact member (20) is a box from the inner position (Hb). It is characterized in that it is configured such that it can be moved between an outer retracted position (Ha) and an inner position (Hb) in a direction of approaching and separating from the bottom of the box (10).
According to the invention of claim 2, since the contact member is configured to be moved to the inside of the flaps on the four sides of the box, the flaps can be expanded outward from the connecting portion without changing the height of the holding body to create a crease. Can be attached.

The invention according to claim 3 is characterized in that the moving means (22) is configured to move the holding body (18) from the habit forming portion (S2) to the next step (S3).
According to the invention of claim 3, the moving means is configured to move the holding body from the habit forming portion to the next step while holding the box, so that the posture change of the box is suppressed and the box is stably transferred to the next step. can do. Further, since it is not necessary to provide another transfer means such as a pusher for moving the box to the next step, not only can the apparatus have a simpler configuration, but also the apparatus cost can be kept low.

In the invention according to claim 4, the holding body (18) is moved from the habit forming portion (S2) to the next step (S3), and the flap (16a) on the rear side in the movement direction is located at the inner position (Hb). It is characterized in that it is configured so as to spread by being applied to the contact member (20).
According to the invention of claim 4, since the flap is pressed against the contact member to be expanded in the process of transferring the box to the next process, the processing time can be shortened.

In the invention according to claim 5, the holding body (18) is arranged such that the holding body (18) faces the first side panel (14, 14) in the facing direction (S2) and the second side panel (16, 16). It is characterized in that it can be moved linearly in each direction.
According to the invention of claim 5, since the holder is configured to be linearly movable in the facing direction of the first side panel and the facing direction of the second side panel, the flaps can be accurately pressed against the contact member. The habit can be favorably set so that the flap is expanded outward.

In the invention according to claim 6, a linear first guide (50) extending along the facing direction of the first side panel (14, 14) and movably supported by the first guide (50). And a linear second guide (56) extending along the facing direction of the second side panel (16, 16), and the holding body (18) is provided in the second guide (56). Movably supported,
While moving the second guide (56) along the first guide (50) by the first servomotor (54) of the moving means (22), the second servomotor (54) of the moving means (22) is also moved. The holding body (18) is configured to move along the second guide (56).
According to the invention of claim 6, since the holding body is supported by the first guide and the second guide and is moved in the facing direction of the first side panel and the facing direction of the second side panel, it is held by the holding body. The flaps of the box can be accurately pressed against the contact member. Further, since the servo motors for moving the holding body in the facing direction of the first side surface panel and the facing direction of the second side surface panel are separately provided, by individually controlling each servo motor, a plurality of boxes can be provided. It is possible to easily and easily respond to size changes.

According to the present invention, it is possible to favorably fold the flaps with a simple structure. Further, it is possible to easily deal with the size change of the box.

It is a schematic plan view which shows a flap expansion device. It is a schematic front view which shows the flap expansion apparatus in the state in which the holding body was positioned in the habit forming part. It is a schematic side view which shows a flap expansion device in the state in which the holding body was positioned in the habit forming part. It is explanatory drawing which shows the relationship of the holding body which hold|maintained the box, and the box receiving part, the habit forming part, and the box packing part.

A preferred embodiment of a box flap expanding device according to the present invention will be described below with reference to the accompanying drawings.

A box 10 formed into a rectangular tube shape from a corrugated cardboard sheet folded in the previous step is supplied by a robot 12 to the box flap expanding device according to the embodiment. The box 10 includes a bottom portion that is closed by folding bottom flaps that are connected to the lower sides of the four side panels 14 and 16 and a pair that extends upward from the side panels 14 and 16 at the opening as the article supply port. Of the first flap 14a, 14a and a pair of second flaps 16a, 16a (see FIGS. 1-3). Regarding the side panels 14 and 16, the side panels facing each other before and after in the transport direction of the transport conveyor 26, which will be described later, of the box 10 are referred to as first side panels 14, and the left and right side panels that intersect the transport direction are referred to as first side panels. The two side panels 16 are designated.

The robot 12 takes out the folded corrugated cardboard sheets stored in the magazine one by one by a robot arm that can move freely in the three-dimensional space and supplies the folded corrugated paper sheets to the box opening device. Then, the bottom flap of the box-making box is folded by a flap folding device while the box-shaped box formed by the box-raising device into a rectangular tube is adsorbed and held by a robot arm, and the folded bottom flap is taped by a tape applying device. The attached box 10 is supplied to the flap expanding device by the robot arm.

1 to 3 are schematic views showing a main part of a flap expanding device according to an embodiment, and the flap expanding device includes a holder 18 for holding the box 10 supplied by the robot arm. A contact member 20 that can be exposed to an inner position Hb surrounded by flaps 14a, 14a, 16a, 16a extending from the side panels 14, 14, 16, 16 in the opening 10a of the box 10 held by the holder 18. Hold the flaps 14a, 14a, 16a, 16a of the box 10 that moves integrally with the holding body 18 up to the outer spreading positions MF, MR, NL, NR where the flaps 14a, 14a, 16a, 16a are pressed outward to spread to the inside position Hb. A moving means 22 for moving the body 18 back and forth and left and right.

As shown in FIGS. 1 to 3, the holder 18 conveys the holding means 24 for holding the box 10 and the box 10 in which the flaps 14a, 14a, 16a, 16a are expanded toward the next processing step. A transport conveyor 26 including a belt conveyor is provided, and a box receiving portion S1 is provided by the moving means 22 and a peculiar portion S2 in which the flaps 14a, 14a, 16a, 16a are expanded outward by using the contact member 20. The robot 10 mounts the box 10 having an open top on the transport conveyor 26 of the holder 18 located in the box receiving section S1. The holding means 24 extends, in one of the left and right directions, above the transport surface of the transport conveyor 26 and serves as a reference first sandwiching member 28 that extends by a predetermined length in the transport direction, and the first sandwiching member 28. 28 and a second holding member 32 that faces the carrying conveyor 26 and moves in the left-right direction by a holding cylinder 30, and a regulating lifting cylinder 34 that is provided on the front side in the carrying direction of the carrying conveyor 26 and that moves above the carrying surface. A third sandwiching member 36 that moves between a retracted position below and a restricting position that projects from the transport surface is provided. In addition, a sandwiching piece (fourth sandwiching member) 32a sandwiching the first side surface panel 14 with the third sandwiching member 36 is provided on the rear end side of the second sandwiching member 32 in the transport direction of the transport conveyor 26. It extends toward 28. The sandwiching piece 32a is provided with a guide surface 32b at the extending end, which is inclined rearward in the transport direction.

As shown in FIG. 2 and FIG. 3, the contact member 20 is arranged above the curving portion S2 by the lifting cylinder 38 so as to be movable in the vertical direction. The elevating cylinder 38 has an evacuation position Ha which is located above the extension ends of the flaps 14a, 14a, 16a, 16a of the box 10 in the opening 10a and is spaced apart outward (outward of the box from the inner position Hb). The contact member 20 is moved up and down between the position and the position Hb. That is, the contact member 20 can be moved back and forth in the approaching/separating direction with respect to the bottom of the box 10 held by the holder 18 in the habit forming portion S2 to position the contact member 20 between the retracted position Ha and the inner position Hb. Composed. Further, the contact member 20 is provided with four contact portions 42, 42, 44, 44 corresponding to the respective flaps 14a, 14a, 16a, 16a on a board 40 having an outer shape smaller than the opening size of the box 10. (See FIG. 4). Each of the contact portions 42, 44 is formed so as to incline outward as it is separated from the substrate 40 in the upper direction. Regarding the contact portions 42 and 44, the contact portion corresponding to the first flap 14a is referred to as the first contact portion 42, and the contact portion corresponding to the second flap 16a is referred to as the second contact portion 44. Call out.

As shown in FIGS. 1 to 3, the moving means 22 includes a first operating means 46 for moving the holding body 18 in the front-rear direction and a second operating means 48 for moving the holding body 18 in the left-right direction. The first actuating means 46 includes a linear first slide guide (first guide) 50 extending in the front-rear direction, a first slider 52 movably supported by the first slide guide 50, The first slider 52 is provided with a first servo motor 54 as a first driving unit that reciprocates back and forth along the first slide guide 50. In the embodiment, the ball screw arranged along the first slide guide 50 is driven by the first servo motor 54 to move the first slider 52, and the first actuating means 46 is composed of a linear servo actuator. Then, the first servomotor 54 reciprocates the first slider 52 back and forth to cause the first flaps 14a, 14a of the box 10 held by the holder 18 to correspond to the contact member 20 at the inner position Hb. The drive control is performed so as to move between the outer expansion position MF (front outer expansion position) and MR (rear outer expansion position) before and after being pressed outward against the first contact portions 42, 42 and expanded outward. Further, the first servomotor 54 is drive-controlled so as to move the holding body 18 between the box receiving portion S1 and the habit forming portion S2. In the embodiment, as shown in FIG. 4, a box receiving portion S1 is provided on the rear end side of the first slide guide 50 in the carrying direction, and a habit forming portion S2 is provided on the front end side of the carrying direction.

As shown in FIGS. 1 to 3, the second operating means 48 is disposed on the first slider 52, is movable along with the first slider 52 along a first slide guide 50, and extends in the left-right direction. An existing linear second slide guide (second guide) 56, a second slider 58 movably supported by the second slide guide 56, and the second slider 58 along the second slide guide 56. It is provided with a second servo motor 60 as a second driving means that reciprocates left and right. The holding body 18 (holding means 24 and transfer conveyor 26) is disposed on the second slider 58 so as to be movable along with the second slider 58 along the second slide guide 56. In the embodiment, the second actuating means 48 is composed of a linear servo actuator that moves the second slider 58 by driving a ball screw arranged along the second slide guide 56 by the second servo motor 60. The second servo motor 60 reciprocates the second slider 58 left and right to move the second flaps 16a, 16a of the box 10 held by the holder 18 to the second contact portion at the inner position Hb. Drive control is performed so as to move between the left and right outer expansion positions NL and NR which are pressed against 44 and 44 and expanded outward. In the embodiment, the first slide guide 50 and the second slide guide 56 support the holder 18 so as to be movable in the facing direction of the first side panel 14 and the facing direction of the second side panel 16, 16. Functions as a means.

As shown in FIGS. 3 and 4, the second actuating means 48 transfers the box 10 in which the flaps 14a and 16a are habited in the habit forming section S2 to the boxing section S3 on the side of the habit forming section S2. Function as a means to do. That is, the second flap 16a on the side opposite to the boxing section S3 is expanded outward, and the holder 18 moved to the right outward expansion position NR on the right side in FIG. 3 is moved to the boxing section S3 as it is and the box 10 is boxed. The movement amount of the second slider 58 is set so that the second slider 58 can be positioned in the portion S3. Then, in the embodiment, by moving the holding body 18 from the left outer expansion position NL on the left side opposite to the boxing part S3 to the boxing part S3 beyond the right outer expansion position NR, the box 10 is moved from the habit forming part S2. It is configured to transfer to the boxing unit S3 in the next process. Further, in the process of transferring the box 10 of the habit forming part S2 to the boxing part S3, the second flap 16a on the rear side in the transfer direction (the rear side in the moving direction of the holding body 18) is pressed against the contact member 20 to the outside. It is configured to be expanded to. Then, the box 10 in which the articles are packed in the packing section S3 is carried out by the transport conveyor 26 toward the next processing step. In the embodiment, as shown in FIG. 4, in a state where the second slide guide 56 is located on the front end side of the first slide guide 50, the left end side of the second slide guide 56 becomes the habit forming portion S2 and the right end side A boxing unit S3 is provided.

Next, the operation of the flap expanding device according to the embodiment will be described. As shown in FIG. 1, the box 10 whose top is opened by the robot hand is provided on the transport conveyor 26 of the holder 18 located in the box receiving section S1 with the first holding member 28 and the third holding member 36 at the regulation position. When the second side panel 16 and the first side panel 14 corresponding to the above are placed so as to abut, the second clamping member 32 advances toward the first clamping member 28 by the clamping cylinder 30, and the first clamping member 28 is moved. The bottom side of the second side panel 16, 16 of the box 10 is sandwiched from the left and right by the member 28 and the second clamping member 32. Further, when the second holding member 32 advances toward the first holding member 28, the guide surface 32b of the holding piece 32a comes into contact with a corner portion on the rear side in the transport direction of the box 10 to move the box 10 to the third position. By pushing toward the holding member 36, the bottom side of the first side panel 14, 14 of the box 10 is held from the front and back by the third holding member 36 and the holding piece 32a to hold the box 10. Then, by moving the first slider 52 to the front side in the carrying direction by the first operating means 46, the holding body 18 holding the box 10 moves to the curling portion S2.

As shown in FIG. 2, the abutting member 20 standing by at the upper retracted position Ha in the habit forming portion S2 is moved down to the habit forming portion S2 by being lowered by the lifting cylinder 38, and the opening of the box 10 is moved. It enters from 10a, and is positioned at an inner position Hb facing the inside of the first and second flaps 14a, 14a, 16a, 16a. Then, by moving the first slider 52 to the front side in the transport direction by the first operating means 46, the box 10 held by the holding body 18 moves to the front outward expansion position MF (dashed line position), The rear side first flap 14a pressed against the first contact portion 42 of the contact member 20 at the inner position Hb is expanded outward, and the first flap 14a is folded at the connection portion with the first side surface panel 14. A crease is added so that the ruled line is a base point and is inclined outward and spread out. Further, by moving the first slider 52 to the rear side in the carrying direction by the first actuating means 46, the box 10 held by the holding body 18 moves to the rear outward expansion position MR (two-dot chain line position), The front side first flap 14a pressed against the first contact portion 42 of the contact member 20 at the inner position Hb is expanded outward, and the first flap 14a is a crease at a connection portion with the first side surface panel 14. A crease is added so that it becomes a state in which it is inclined outward and spread from the base point. That is, the first actuating means 46 reciprocates the first slider 52 back and forth in the carrying direction in the habit forming portion S2 to fold the pair of first flaps 14a, 14a of the box 10 held by the holding body 18. Add a habit.

Next, as shown in FIG. 3, the second actuating means 48 moves the second slider 58 to the left (the side away from the boxing section S3) intersecting the carrying direction, and is held by the holder 18. The opened box 10 moves to the left outer expanded position NL (the position indicated by the alternate long and short dash line), and the right (one) second flap 16a pressed against the second contact portion 44 of the contact member 20 at the inner position Hb is outward. The second flap 16a has a crease so that the second flap 16a is inclined and expanded outward from the crease of the connection portion with the second side panel 16 as a base point (in FIG. 4, the crease formation portion). The front and rear and right side flaps 14a and 16a are shown in a state of being expanded in S2). Then, the second actuating means 48 moves the second slider 58 rightward (the side close to the boxing section S3) intersecting the transport direction to the boxing section S3. That is, in the process in which the box 10 held by the holder 18 moves to the box packing section S3 beyond the right outer expansion position NR (two-dot chain line position), the second contact portion 44 of the contact member 20 at the inner position Hb. The left (the other) second flap 16a pressed to the outside is expanded outward, and the second flap 16a is expanded with the folding rule of the connection portion with the second side panel 16 as the base point and inclined outward. The habit is added so that Since the bottom side of the box 10 moving to the boxing section S3 is held by the holding means 24 from the front and rear and from the left and right, the posture of the box 10 moved from the habit forming section S2 to the boxing section S3 is suppressed. It can be transferred stably. Further, the contact member 20 is lifted to the retracted position Ha after being pushed outward by the second flap 16a on the left side and being pushed outward.

The empty box 10 transferred to the boxing section S3 is packed with a predetermined number of articles. Since all the flaps 14a, 14a, 16a, 16a have creases and extend outside the four side panels 14, 14, 16, 16 so that the flaps 14a, 14a, 16a, 16a may interfere with the article. Therefore, the articles can be satisfactorily supplied into the box. When the packing is completed, the second holding member 32 of the holding means 24 is separated from the second side surface panel 16, and the third holding member 36 is lowered to the retracted position, thereby holding the holding members 28, 32, 36 and the holding members. The holding of the bottom side of the box 10 by the piece 32a is released. Then, by traveling the transport conveyor 26, the box 10 in which the articles are packed is unloaded toward the next processing step provided on the right side of the packing section S3 in FIG. The box 10 transported by the transport conveyor 26 is guided along the first sandwiching member 28, so that it can be sent to the next processing step without being displaced. Further, after the box 10 is sent out from the transport conveyor 26, the holder 18 is moved to the box receiving section S1 by the moving means 22 and waits for the next box 10 to be supplied.

In the flap expanding device of the embodiment, the holder 18 holding the box 10 is moved forward, backward, leftward and rightward, and the four-sided flaps 14a, 14a, 16a, 16a are pressed against the contact member 20 located at a fixed position to the outside. Since the creases are formed by spreading the folds, the structure can be simpler than the structure in which the movable habit forming members are provided corresponding to the flaps 14a, 14a, 16a, 16a. Further, when the flaps 14a, 14a, 16a, 16a are pressed against the contact member 20 and expanded, the bottom of the box 10 is sandwiched by the holding means 24 from the front and rear and the left and right to hold the box 10. The crease can be favorably applied without the 10 being displaced. Further, since the contact member 20 is configured to be moved to the inside of the flaps 14a, 14a, 16a, 16a on the four sides of the box 10, the flaps 14a, 16a can be attached to the side panels 14, 16 without changing the height of the holding body 18. With the creases at the connection with and as a base point, it is possible to expand outward and create a crease. Further, the holder 18 is supported by the first slide guide 50 and the second slide guide 56 so as to be linearly movable in the facing direction of the first side panels 14 and 14 and in the facing direction of the second side panels 16 and 16, respectively. With this configuration, the flaps 14a and 16a can be accurately pressed against the contact member 20 to favorably form the flaps 14a and 16a.

In the flap expanding device of the embodiment, the moving means 22 for moving the holder 18 holding the box 10 to expand the flaps 14a, 14a, 16a, 16a transfers the box 10 to the box packing unit S3 in the next step. By functioning as a means, it is possible to omit the installation of a separate transport facility such as a transport conveyor. This makes it possible to favorably fold the flaps 14a, 14a, 16a, 16a and transfer the box 10 with an extremely simple structure, and to reduce the cost of the apparatus at a low cost. In addition, a short processing time can be achieved by expanding one second flap 16a in the process of transferring the box 10 from the habit forming section S2 to the boxing section S3 in the next step. Further, since the holder 18 holding the box 10 is configured to move from the habit forming section S2 to the boxing section S3, it is not necessary to transfer the box 10 to another means, and the posture change of the box 10 can be suppressed to suppress the boxing section. The box 10 can be positioned at the proper position in S3. Further, since the holder 18 is supported by the second slide guide 56 and linearly moved to the boxing section S3, the box 10 can be stably transferred to the boxing section S3.

In the flap expanding device of the embodiment, since the servo motors 54 and 60 are used as the driving means of the first operating means 46 and the second operating means 48, the numerical values individually input to the servo motors 54 and 60 are used. The size of the box 10 can be changed easily and flexibly by changing the data. Further, the empty box 10 having the creases at the connecting portions between the flaps 14a and 16a and the side panels 14 and 16 can be accurately transferred to the boxing section S3. In addition, since the boxes 10 packed in the packing section S3 are configured to be carried out to the next processing step by the transport conveyor 26 included in the holder 18, the installation of another carrying-out means can be omitted.

(Example of change)
The present invention is not limited to the configuration of the embodiment, and can be modified and implemented as follows, for example. Further, the configurations described in the examples are not limited to the following modified examples, and various embodiments can be adopted within the scope of the gist of the present invention.
(1) A flap expanding device is arranged on each of the left and right sides sandwiching the robot 12, and each robot 12 supplies the box 10 to each flap expanding device, and each flap expanding device expands the flaps of the box 10. It is possible to adopt a configuration in which opening, transfer to the boxing unit S3, and carrying out the box 10 from the boxing unit S3 to the next processing step are performed.
(2) In the embodiment, the contact member 20 is configured to move back and forth with respect to the inside of the box 10 held by the holder 18 in the curling portion S2, but the holder 18 moves forward and backward with respect to the contact member 20 in the fixed position. It is possible to adopt a configuration in which the contact member 20 moves and enters the box.
(3) In the embodiment, the arrangement of each member is illustrated in the case where the box 10 having an open upper portion is subjected to the folding process, but the present invention is also applicable to a processing mode in which the opening of the box 10 is folded sideways.
(4) The order in which the flaps 14a, 14a, 16a, 16a are pressed against the contact member 20 and expanded is the second flaps 16a, 16a on the left and right of the box 10 → the first flaps 14a, 14a on the front and rear of the box 10. You may.
(5) For the first actuating means 46 for moving the holder 18 back and forth and the second actuating means 48 for moving the holder 18 left and right, various known moving mechanisms can be adopted.
(6) The holding means 24 of the box 10 holds the box 10 by sandwiching the box 10 from the left and right with the second holding member 32 that moves forward and backward with respect to the first holding member 28, and the holding piece provided on the second holding member 32. The box 10 is sandwiched and held from the front and rear by the 32a and the third sandwiching member 36, but a fourth sandwiching member that moves forward and backward facing the third sandwiching member 36 is provided. It is possible to adopt a configuration in which the box 10 is sandwiched and held by the three sandwiching members 36 from the front and rear.
(7) In the embodiment, the transport conveyor 26 provided in the holder 18 is configured to carry out the box 10 in which the articles are packed into the next processing step. However, the box 10 is placed on the holder 18. It is possible to employ a mode in which the table 10 is provided and the box 10 is transferred from the holder 18 to the next processing step by another transfer means such as an overhead conveyor or a pusher.

10 box, 14 1st side panel, 14a 1st flap, 16 2nd side panel 16a 2nd flap, 18 holding body, 20 contact member, 22 moving means 50 1st slide guide (1st guide), 54 1st servo Motor 56 Second slide guide (second guide), 60 Second servo motor, Ha retracted position Hb inner position, MF front outer expansion position (position), MR rear outer expansion position (position)
NL left outside expansion position (position), NR right outside expansion position (position), S2 habit forming part S3 boxing part (next process)

Claims (6)

A first flap extending from a pair of opposing first side panels of a box that is formed into a rectangular tube shape and one of which is open, and a pair of second side panels that intersect and oppose the first side panel. And a second flap and a box flap expanding device for expanding the box,
A holder for holding the box,
In the peculiar portion for expanding the flap, a contact member that can face an inner position of the box held by the holder surrounded by the first and second flaps, and the holder with respect to the inner position of the holder. In the facing direction of the first side panel and the facing direction of the second side panel, the first and second flaps applied to the abutting member are outward from a connection portion with the first and second side panels. A flap expanding device for a box, comprising: a moving unit that moves to an expanding position. With respect to the box held by the holding body in the habit forming portion, the contact member can move between the retracted position outside the box from the inner position and the inner position in the direction of approaching and separating from the box bottom. The flap expanding device for a box according to claim 1, wherein the flap expanding device is a box flap expanding device. 3. The box flap expanding device according to claim 1, wherein the moving means is configured to move the holding body from the habit forming portion to a next step. The flap expansion of the box according to claim 3, wherein the holder is moved from the habit forming portion to the next step and a flap on the rear side in the movement direction is applied to the abutting member at the inner position to be expanded. Opening device. 5. The holding body is configured to be linearly movable in the facing direction of the first side surface panel and the facing direction of the second side surface panel in the curving portion, respectively. An apparatus for expanding the flap of the box according to the item. A linear first guide extending along the facing direction of the first side panel, and a linear shape movably supported by the first guide and extending along the facing direction of the second side panel. A second guide, and the holding body is movably supported by the second guide,
The second servomotor of the moving means moves the second guide along the first guide, and the second servomotor of the moving means moves the holder along the second guide. The flap expanding device for a box according to claim 1, wherein the flap expanding device is a box flap expanding device.

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