JPS63162402A - Method and device for receiving work to box such as corrugated box - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to boxes such as cardboard boxes used when products and other works on a factory production line are stored and packed in various boxes such as cardboard boxes in an assembly line. More specifically, after opening a folded flat cardboard box into a rectangular cylindrical shape, the workpiece is placed into the cylinder from the bottom side with the bottom lid open. The present invention relates to a method and apparatus for storing a workpiece in a box such as a cardboard box whose bottom cover or top cover is then closed.

[Technical background of the invention]

Traditionally, when products are stored and packaged in cardboard boxes on a factory production line, the flattened cardboard boxes are folded into a rectangular cylindrical shape, with at least the bottom lid open. , the bottom cover is closed, the top cover is left open, and the top cover is closed after the workpiece is delivered from the top of the box.

Therefore, in the method for storing a workpiece in a cardboard box, when storing the workpiece in a box such as a cardboard box, a means for lifting the workpiece to the upper side of the box such as a cardboard box, that is, a means for grasping the lower (bottom) side of the workpiece is used. It has been pointed out that because an arm is required to lift the cardboard box and a gap is required for the arm to fit inside the cardboard box, it is difficult to automatically store and pack the cardboard box. Further, even if it were automated, there is a problem that the configuration would be complicated.

Therefore, the present invention has been devised to address the above-mentioned points, and its purpose is to provide a method and apparatus that is completely opposite to the method of opening the top lid of the box and loading the work from the top.
That is, the object of the present invention is to provide a method and an apparatus for storing a workpiece from the bottom side of a box such as a cardboard box while the bottom lid of the box is open.

(Means for solving the problem) The method of storing the work in a cardboard box as a means for achieving the above purpose is to open at least the bottom cover of a box such as a cardboard box and store it in a cylindrical or inverted container shape. The method comprises a step of holding the box, a step of carrying in the workpiece from the bottom side of the box in the holding state, and a step of closing the top or bottom cover of the box after carrying in the workpiece. be.

Here, in the above configuration, the step of opening at least the bottom cover of a box such as a cardboard box and holding the box in a cylindrical or inverted container shape is performed before folding the box such as a cardboard box and holding the box in a flat state. The method includes a step of suctioning and holding the box vertically, and a step of moving the flattened box held by suction in the suction direction and forming the box into a cylindrical shape.

Further, as a means for achieving the above object, an apparatus for storing workpieces in a cardboard box is provided by expanding the upper and lower lids of a rectangular box having a rectangular container part with four front, rear, left, right and left sides, and a top lid and a bottom lid. A suction part for suctioning at least one side of the four front, rear, right, and left sides of a flat box formed by bending one diagonal part of the part inward and expanding the other diagonal part to 180 degrees. The suction and transfer mechanism provided with the box makes contact with an adjacent side that is on the same plane as one side of the box during reciprocating transfer, and bends the adjacent side of the box at right angles to transform the flat box into a rectangular, rectangular, cylindrical shape. a box holding mechanism that holds the box in an open rectangular tube shape using the bending mechanism; and a box holding mechanism disposed above or below the rectangular tube of the box held by the holding mechanism. The box has a work storage mechanism for transporting the work from the bottom of the box, and a bottom lid closing device for closing the bottom lid of the box in which the work is stored by the work storage mechanism.

[Effect]

The method and device for storing a work in a box such as a cardboard box of the present invention based on the above configuration intermittently takes out a folded flat cardboard box one by one and automatically forms it into a vertically cylindrical shape. After the box is turned into a vertical cylinder or an inverted container, the contents are automatically loaded from the bottom of the box, the top or bottom lid is automatically closed, and the other bottom or top lid is closed. It functions so that it is sent to the next process in the open state.

As described above, the method and apparatus for storing a work in a box such as a cardboard box of the present invention hold the cardboard box with the top and bottom lids open, and store the work from the bottom side of the box. It has a special feature in that it can be carried into the box.

〔Example〕

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

Here, Figs. 1 to 3 show embodiments of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a front view, Fig. 3 is a right side view, and Fig. 4.5.
The figure shows an embodiment of the work storage device including the present invention, and the fourth embodiment of the work storage device includes the present invention.
The figure is a plan view, and FIG. 5 is a front view.

The workpiece storage device of this embodiment includes a workpiece transfer mechanism 1 and a workpiece branch transfer machine I#! 2, a work collection mechanism 3, a work storage mechanism 4, and a bottom cover closing mechanism 5.

The workpiece transfer ia structure 1 is for continuously supplying the workpieces W, and is composed of a -line belt conveyor. A work branch transfer mechanism 2 is continuously disposed at the rear end 6 of the belt conveyor 1. Here, an existing conveyor line can be used as the belt conveyor 5.

The workpiece branching transfer mechanism 2 is a mechanism for branching and parallelly transferring the workpieces W transferred from the workpiece transfer mechanism 1, and includes two belt conveyors 7.8 for branching the workpieces W into two sides, and A transfer table 9.10 for further branching the transfer workpiece W transferred by the belt conveyor 7.8 into four sides.
It has Two belt conveyors 7, 8 are arranged parallel to both sides of the end 6 of the belt conveyor 5. Then, 77.8 to belt conveyor 5 and belt conveyor
The rod 12 is inserted from the side of one belt conveyor 8.
has a cylinder 13 for reciprocating and branching the workpiece W supplied from the belt conveyor (workpiece transfer mechanism) 1 to the left and right belt conveyors 7.8, and the tip of the rod 12 of the cylinder 13 is provided with the workpiece W The work W is transferred to the belt conveyor 7 by extending the rod 12, and is then transferred and supplied by retracting the rod 12 from this state. The work W is transferred to the belt conveyor 8, and the work W, W.
The structure is such that the belt conveyors 7 and 8 alternately branch off to belt conveyors 7 and 8.

Furthermore, the transfer tables 9.10, which are disposed parallel to the respective sides of the belt conveyor 7.8 and the terminal end 11 of the belt conveyor 7.8, are provided with The loft 16.16 reciprocates and has a cylinder 17 for branching the workpiece 6.6 supplied from the transfer table 9.10 to the left and right transfer tables 9.10.
The loft 16.16 has a locking tool 18.18 at the tip end for moving the workpiece W, and each rod 1
Belt conveyor 7.8 by operating 6.16
The structure is such that the workpieces w, w, etc. that are being transferred can be transferred and branched every other workpiece. Here, the transfer tables 9 and 10 are not belt conveyors, but the starting end 19
．． The workpieces 6,6, . . , the terminal end 20 of the transfer table 9 protrudes from the terminal end 15 of the belt conveyor 7 by the amount of the workpiece, and the terminal end 20 of the transfer table IO protrudes from the terminal end 15 of the belt conveyor 7.
The structure is shorter by the amount of work required.

Then, the work w supplied from the belt conveyor 5
, w... are branched and transferred to the belt conveyor 7.8 at the terminal end 6 of the belt conveyor 5, and are further transferred to the belt conveyor 7.8.
Every other workpiece W, W, etc. supplied at the terminal end 11 of 8 is transferred and branched to a transfer table 9.10, and the workpieces W, W,
. . is branched into four sides so that the workpiece can be transferred to the workpiece collection mechanism 3 which is continuous with the workpiece branching and transfer mechanism 2.

The work collection mechanism 3 includes cylinders 22, 23, 24, and 25 for transferring the work W to the center side from the belt conveyor 7.8 and the transfer tables 9 and 10, respectively;
Works w, w, transferred by 2.23.24.25
A cylinder 26 for laying down the workpiece 6, a cylinder 27, 28, 29, and 30 for transporting the workpiece 6,6,. Work rotation part 31 for rotating
．． 32, 33, 34, a stacking section 36 for collecting and stacking the works w, w, etc. in the central section 35, a partition temporary insertion section 37, and the loaded works w,
A transfer cylinder (not shown) is provided for transferring w.

The cylinders 22, 23, 24, 25 have pushing plates 22a, 23a, 24a at the tips of their respective rods.

25a, and by its operation, the workpieces w, w... are transferred to the center side, and then the cylinders 27, 28, 29, 30
A pushing plate 41 disposed at the end of each rod of
．． 42, 43, 44, the workpieces w, w, . . . can be sent out in the advancing direction. Further, the workpiece rotation parts 31, 32, 33, 34 are arranged so as to fit into the workpiece mounting table 45, and their upper surfaces are located on the same plane as the plane of the workpiece mounting table 45. Here, The work rotating parts 31, 32, 33, and 34 are configured to rotate each work W so that the length directions of the works W coincide with each other by a seraping motor or the like.

The stacking section 36 includes cylinders 46 and 47 that are assembled at the center section 35 from both ends of the workpiece mounting table 45, a workpiece stacking section 48, and a forklift for stacking the workpieces (not shown). Cylinder 4 installed in
9, it is configured to be able to move up and down. Further, the workpiece loading section 48 has a plurality of grooves 50 on its upper surface that are engaged with the forks of the workpiece stacking forklift, and after lifting the workpieces w, w, etc. with the forks,
The workpieces w, w, etc. can be stacked by stacking the workpieces w, w, etc. to be transferred next at a position below the lifted workpieces w, w, etc.

The partition temporary insertion part 37 is installed on the upper part of the workpiece mounting table 45, and is arranged at the upper end of the partition plate holder 51 and the holder 51, and moves the holder 51 up and down to insert a step into the workpiece loading part 48. It is configured so that a partition plate can be inserted between the stacked works w, w,...

Then, the stacked workpieces and the partition plates inserted therein are placed in the cylinder 5 installed along the workpiece placement section 45.
2, the workpiece is transferred to the next workpiece storage mechanism 4.

The work storage mechanism 4 and the bottom lid closing mechanism 5 are connected to the work collection mechanism 3, and after loading the collected works W from the bottom side of a box 53 such as a cardboard box with an open bottom lid, the workpiece storage mechanism 4 and the bottom lid closing mechanism 5 close the bottom lid. It is a mechanism for storing a workpiece W in a cardboard box 53, a cardboard box stacking unit 54 that stacks a large number of folded and flat cardboard boxes 53, and a cardboard box 53. The cardboard box direction changing unit 55 and the cardboard box 5 that raise the cardboard box from a horizontal state to a vertical state
3 is formed into a rectangular cylindrical shape rather than a flat state, and also has a cardboard box holding part 56 that holds the cardboard box.

The cardboard box stacking unit 54 is a cardboard box storage box 5 for stacking a large number of unused cardboard boxes 53 in a flat state with their top lids 57 and bottom lids 58 open.
9, a suction cylinder 60 for horizontally lifting the cardboard box 53 from above and moving it up by suction is engaged with the suction cylinder 60, and the cardboard box 53 is transferred to the cardboard box direction changing section 55. The 9-corrugated box direction changing section 55, which is composed of a transfer cylinder 61, includes a loading table 62 on which the cardboard boxes 53 transferred from the cardboard box stacking section 54 are placed, and That i! It is comprised of a cylinder 63 that rotates the mounting table 2 upward and changes the direction of the cardboard box 53 from a horizontal state to a vertical state.

The cardboard box holding section 56 includes a suction cylinder 64 that suctions and holds the vertically placed cardboard box 53 and transfers it to the workpiece storage mechanism 4, and is arranged on the left and right in parallel with the suction cylinder 64. It includes a bending cylinder 65, a supporting cylinder 66, and a cylindrical mounting table 67 on which the cardboard box 53 is placed. A pair of suction cups 69 and 69 are provided at the tip of the rod 68 of the suction cylinder 64, and the rod of the support cylinder 66 The edge of the cardboard box 53 can be held by the receiving guide 0 provided at the tip of the bending cylinder 65, and the bending guide 71 provided at the tip of the rod of the bending cylinder 65, the suction cups 69, 69 and the receiving Stop guide 70
As a result, the folded and flat cardboard box 53 is formed into a rectangular tube (cardboard box folding mechanism) and can be lifted and held (cardboard box holding mechanism).

The workpiece storage section 40 includes two front and rear i[3I mounting tables 72 and 73 for mounting stacked works w, w, etc. arranged at the lower part of the cylindrical i3i device 67, and respective mounting tables. Cylinder 74 for moving the stand 72, 73 up and down from below
．． 75, a cylinder 76 that engages with the cylinder 75 and moves the mounting table 73 in the direction of a cardboard box discharge guiding path 87, which will be described later, and a support for the cardboard box 53 disposed on the upper part of the cylindrical mounting table 67. part 77, a cylinder 78 for closing the rear bottom lid of the cardboard box 53, a roller 79 for closing the front bottom lid of the cardboard box 53, a bending guide 80 for closing both side bottom lids, and works w, w. ,
The cardboard box 53 containing ... is transferred to the cardboard box ejection mechanism 3.
9, and a cylinder 81 for movement in the direction of 9.

The R mounting tables 72 and 73 are disposed in mesh with each other on the same plane, and the ends of the rods of cylinders 74 and 75 are fixed at the center of each, so that they can move up and down integrally with the cylinders 74 and 75. It is composed of In addition, the mounting table 73
The rear edge 82 is curved slightly downward with respect to the mounting table 73. The support portion 77 has a pair of support pieces 82.82 that support the front and rear upper lid edges of the cardboard box 53 formed in a rectangular tube shape, and one end of the support pieces 82.82 is swingably engaged with the horizontal plate 83. The horizontal plate 83 is fixed to a rod of a cylinder 84 on the side opposite to the support pieces 82, 82, and is configured to move up and down. Cylinder 78 is cylindrical! l! When the cardboard box is placed on the placing stand 67, it is installed at a location opposite to the bent part 85 between the rear tab surface of the four sides that should become the side surfaces of the container part of the cardboard box 53 and the inner flap of the bottom cover. and has a bending guide 86 at the tip of the rod.
6, the rear inner flap can be closed. The bending guide 80 is a cylindrical mounting table 67
It has a recessed part whose inner surface is recessed downward and inwardly from a point substantially horizontal to the bent part 85 of the cardboard box 53 when viewed from the side, and the recessed part is thinner on the front side than on the near side, in other words, it is a void part. are formed small, and are formed on both sides along the traveling direction of the cardboard box 53 so that both sides of the lower lid of the cardboard box 53 can be bent by the operation of the cylinder 81, respectively.

The cardboard box discharge mechanism 39 includes a cardboard box discharge path 89 formed perpendicularly to the transport direction of the cardboard box 53, and a cylinder 8 for discharging the cardboard box 53 into the guide path 89.
8 and more.

Next, the operation of the workpiece storage device for a cardboard box in this embodiment will be explained based on the above configuration.

In this device, two pairs of pouched products, ie, two pairs of works W, are stacked in two tiers, and the stacks are housed in a cardboard box 53 from the bottom side.

First, the belt conveyor 5 continuously transports the workpiece W at a constant speed, and the workpiece W is transferred to the terminal end 6 of the belt conveyor 5.
When the workpiece detection sensor (not shown) is activated, the cylinder 13 is activated, the rod 12 is extended, the workpiece W on the belt conveyor 5 is pushed by the locking tool 14, and the workpiece W is branched to the belt conveyor 7. When the rod 12 of the cylinder 13 is contracted and returned to the belt conveyor 5, the next work W has just been transferred, and the work W is pulled through by the locking tool 14 and branched to the belt conveyor 8. Through this process, the works W, W... are alternately branched to the belt conveyor 7.8. As a result, the transfer speed of the works W, W, etc. can be slowed down to facilitate the next process. Note that the belt conveyors 7 and 8 are driven at the same speed.

Next, the work W on the belt conveyor 7.8, W...
When the workpiece W reaches the terminal end 15, a workpiece detection sensor (not shown) is activated, and when the workpiece W is detected, the cylinder 17.1
7 is activated, and the transfer table 9 is activated by the locking device 18.1, respectively.
．． 10, branch every other piece, and as a result, the work w, w
... is in a four-sided state, and the works W, W, ... on the belt conveyor 7.8 are moved by the conveyor, and the transfer tables 9, lO
The upper works w, w, . . . are sequentially transferred by the pushing cylinder 21.21 to the ends 15', 15' of the belt conveyor 7.8 and the terminal end 20.20 of the transfer table 9.10.

And each work w, w... is 8 works w.
, w... detected cylinder 22.23.24.25
When the rod is actuated, the pushing plate 2 disposed at the end of the rod
End 15.15 by 2a, 23a, 24a, 25a,
At the terminal end 20.20, it is lowered from the belt conveyor 7.8 and the transfer table 9.10, and is then turned sideways in the same direction by cylinders 26, etc., which are arranged above the lowered point. . Next, the work W, W.
・Cylinder 27.28.29.30 by detection of sideways falling
The workpieces w, w, .

Here, after detecting that the workpieces w, w, etc. have been transferred onto the workpiece rotating table 31.32.33.34, the rotating table 31.32.33.34 is rotated by 90 degrees in a predetermined direction. , the workpieces W, W, etc. are oriented vertically in the direction of travel. Subsequently, by the operation of the cylinders 46 and 47, the pushing plates 22a, 23a, 24 fixed to the tip of the rod are
a, 25a to the central part 35 of the workpiece mounting table 45 and transferred to the workpiece loading section 48, and then move the forklift for workpiece #lR to the groove 50 formed between the workpiece storage section 48 and the works W, W, . . . The workpieces W, W, etc. are engaged with the workpieces W, W, etc. by lifting them upward, and loading the workpieces W, W, etc. to be transferred next to the lower position.
・is stacked in two layers. Then, the cylinder 49 and the partition temporary insertion section 37 are operated to insert the partition plate between the works w, w, etc., and the works w, w, etc. are transferred to the work storage mechanism 4 by the cylinder 52.

On the other hand, the corrugated pole box 53 for storing the works W, W, . That is, the suction cylinder 6 picks up the flat cardboard boxes 53 loaded on the cardboard box loading section 54 one by one from above.
When the cardboard box is moved up by suction at 0 and transferred to the cardboard box direction changing unit 55 by the transfer cylinder 61 and placed on the mounting table 62, the cylinder 63 operates to change the position from the vertical state to the horizontal state around the tip edge of the mounting table 62. direction changes. Then, one side of the four sides of the cardboard box 53 that should become the container side is suctioned by the suction cylinder 64 via the @ board 69, 69 disposed at the tip of the load drawer 8. In addition, the bending guide 71 of the bending cylinder 65 is brought into contact with the edge of the tab surface of the cardboard box 53, and the suction cylinder 64 also holds the 8-carton cardboard box 53 at the edge of the tab surface on the opposite side of the cardboard box 53. When suction is applied until the edge contacts the receiving guide 70 of the support cylinder 66, the tab surface is bent at a right angle, and the tab surface on the opposite side is also bent at a right angle, and the flat cardboard box 62 is formed into a rectangular tube. The work pieces 6, 6, .

Next, the workpieces w, w, etc. transferred to the workpiece storage mechanism 4 and the bottom lid closing mechanism 5 are placed on the i1 mounting table 72, 73, and are placed in a predetermined position by the workpiece storage mechanism tj14 and the bottom lid closing mechanism 5. It is accommodated from the bottom side of the cardboard box 53 placed therein. That is, the bottom lid edge side of the cardboard box 53 is placed on the cylindrical mounting table 67, and the top lid edge is held by the support part 77, and the works w, w, etc. are placed from the bottom side of the cardboard box 53.
The mounting table 72.73 on which is placed is moved upward by the operation of the cylinder 74.75, and the
2.73 is fixed at the bent portion 85 between the rear tab surfaces of the four side surfaces of the container portion of the cardboard box 53 and the inner flap of the lower lid. Next, the cylinder 76 moves the rear mounting table 73 downward.

In this case, the workpiece W placed on the mounting table 73 is partially placed on the front mounting table 72 and the side surface is in contact with the inner surface of the cardboard box 53, so that it remains in a held state. Next, by operating the cylinder 78, the bending guide 86 disposed at the tip of the rod pushes up and closes the rear inner cylinder of the lower lid of the cardboard fi53, and then the cylinder 76 and the cylinder 81 are closed. When the cardboard box 53 containing the workpieces w, w, etc. is transferred in the direction of the cardboard box discharge mechanism 39, the front inner flap of the bottom cover contacts the roller 79 from the mounting table 72 and bends backward, causing the closure. At the same time, the bending guides 80 and 80 formed on both sides of the guideway 87 bend the side surfaces of the bottom cover inward and close the bottom cover, and the bottom cover is completely closed and the workpieces are transferred to the two-tier stacker. , w... are housed in a cardboard box 53.

Then, the cardboard box 53 is pushed by the next cardboard box 53 on the guideway 87.
7, the cylinder 88 is actuated and the cardboard box is discharged into a cardboard box discharge path 89.

In the above-described embodiment, a tape applying mechanism may be provided to apply tape to the bottom of the cardboard box after the bottom cover is closed by the work storage mechanism 4.

By the way, in the above-mentioned embodiment, the transfer of the workpiece,
Although the description has been made using a cylinder such as a pneumatic or hydraulic cylinder as a means for transferring the cardboard box, it is obvious that other means or electrical means may be used.

Furthermore, in the above-mentioned embodiments, a rectangular cardboard box was used as the box, but a circular or other polygonal box may also be used, and in addition to a cardboard box, a box made of paperboard It is clear that a configuration using .

It should be noted that the present invention is not limited to the above-mentioned embodiments, but it is clear that modifications can be made without changing the gist of the present invention.

〔Effect of the invention〕

As is clear from the above description, according to the method and device for storing a work in a box such as a cardboard box of the present invention, the box such as a cardboard box is in a cylindrical state with its upper and lower lids open, and the cylindrical Since the work is carried in from the bottom of the box, there is no need for a lifting mechanism such as an arm to lift the work to the top of the box, unlike in conventional work storage methods and devices.Therefore, the structure is compact. It has the effect of being able to

Further, according to the method and device for storing a workpiece in a box such as a cardboard box of the present invention, the workpiece is loaded from the bottom of the box onto a mounting table or the like with the bottom lid open. Therefore, unlike the structure in which the workpiece is carried in from the top of the box, there is no need for a locking device such as a claw to support the workpiece.Therefore, the volume of the box such as a cardboard box can be approximately equal to the volume of the workpiece. has.

Furthermore, according to the method and apparatus for storing works in a box such as a cardboard box of the present invention, the work is carried into the box with the work placed on a mounting table or the like, so that a plurality of works can be stacked. This has the advantage of being able to be transported all at once in a closed state.

Therefore, according to the present invention, it is possible to provide a method and apparatus for storing a work in a box such as a cardboard box, which has a simple structure and can automatically store the work into the box.

[Brief Description of the Drawings] Figures 1 to 3 show embodiments of the present invention, and Figure 1 is a plan view;
Fig. 2 is a front view, Fig. 3 is a right side view, Fig. 4.5 shows an embodiment of the work storage device including the present invention, Fig. 4 is a plan view, and Fig. 5 is a front view. ...Work supply mechanism, 2
... Work loading mechanism, 3... Work collecting section, 4...
- Workpiece storage mechanism, 5... Bottom cover closing mechanism, 40...
Workpiece storage section, 53... Cardboard box, 54... Cardboard box, 55... Cardboard box direction changing section, 56...
Cardboard box stacking section, 62... loading section Applicant
Written by Hiroshi Yoshimura, Patent Attorney, System Stimni Gyo Co., Ltd. Figure 1 Figure 3

Claims (3)

[Claims] (1) A step of opening at least the bottom cover of a box such as a cardboard box and holding the box in a cylindrical or inverted container shape, a step of carrying in a workpiece from the bottom side of the box in the holding state, and a step of carrying in the workpiece from the bottom side of the box in the holding state A method for storing a work in a box such as a cardboard box, comprising the step of closing the top or bottom cover of the box after the box is carried in. (2) The step of opening at least the bottom cover of a box such as a cardboard box and holding the box in a cylindrical or inverted container shape is a step in which the box such as a cardboard box is folded and held vertically in a flat state by suction. and a step of moving the flat folded box held by suction in the suction direction and forming the box into a cylindrical shape. Containment method. (3) Unfold the top and bottom lids of a rectangular box that has a rectangular container part with four front, left, left and right sides, and a top and bottom lid, bend one of the diagonal parts of the container part inward, and fold the other side. A suction transfer mechanism includes a suction section for suctioning at least one side of the four front, rear, left, and right sides of a flat box formed by expanding diagonal portions to 180 degrees; a folding mechanism for bending the adjacent side of the box at right angles while abutting the adjoining side during backward transfer of the suction section of the suction and transfer mechanism to open the flat box into a rectangular cylindrical shape; A box holding mechanism that holds a box in an open rectangular tube shape, and a workpiece that is disposed above or below the rectangular tube of the box held by the holding mechanism and that allows the workpiece to be carried in from the bottom side of the box. 1. A work storage device for a box such as a cardboard box, comprising a storage mechanism and a bottom lid closing device for closing the bottom lid of a box in which a work is stored by the work storage mechanism.