JPH06320648A - Apparatus for producing polygonal cylindrical object - Google Patents

Abstract

(57) [Abstract] [Purpose] Efficiently manufacturing a polygonal tubular body [Configuration] Corrugated board 102 sucked by suction cups 26 of suction cylinders 28a, 28b is horizontally moved by driving horizontal movement cylinder 18 and rotated. Place on body 40. Rotating body 40
The corrugated board 102 is sucked into the suction hole 44 which holds the corrugated board 102 by the take-up and pressing roller 84. The end-bending roller 88 is lowered to bend the corrugated board 102 and suck it into the suction holes 48a and 48b. The rotating body 40 is driven to rotate, and the corrugated board 102 is wound along the side surface of the rotating body 40 and bent. Since the glue is applied to the portion sandwiched between the gluing roller 70 and the glue pressing roller 80 as the tape is wound, the first and second layers are glued to form the rectangular tubular body 100. The rectangular tubular body 100 is pressed and moved by the vertical members 32 a and 32 b and separated from the rotating body 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polygonal tubular body manufacturing apparatus for processing a sheet-like material such as corrugated board or cardboard into a polygonal tubular shape.

[0002]

2. Description of the Related Art Conventionally, there is known a polygonal tubular body formed by corrugating a corrugated board into a polygonal tubular shape such as a square or triangular cross section. Such a polygonal tubular body is convenient to use, for example, as a cushioning material when packing articles.

[0003]

However, most of the production of this kind of polygonal tubular body is performed manually, and there has not yet been a manufacturing apparatus for efficiently producing the polygonal tubular body.

[0004]

In order to solve such a problem, a polygonal tubular body manufacturing apparatus of the present invention comprises a rotating body which has a polygonal cross section and is rotatable about an axis of rotation. And a capturing means that is installed on one or more side surfaces of the rotating body to capture a sheet-like material, and the sheet-like material captured by the capturing means is wound by the rotation of the rotating body and is rotated. A winding mechanism that forms a polygonal tubular body according to the outer shape of the body, an arrangement mechanism that arranges the sheet-like object at a position where the winding mechanism is set, and an adhesive application area for the sheet-like object An adhesive applying mechanism for applying an agent, and a releasing mechanism for moving the wound polygonal cylindrical body along the axial center direction of the rotating body to separate it from the rotating body are provided. To do.

[0005]

In the apparatus for manufacturing a polygonal tubular body having the above-described structure, for example, a corrugated board, a cardboard, a synthetic resin plate, a thin metal plate, etc., which is cut into a shape corresponding to the shape of the polygonal tubular body to be manufactured in advance. The arranging mechanism arranges the sheet-like object at the set position of the winding mechanism.

The catching means catches the sheet-like material arranged at the set position, and subsequently the rotating body rotates to wind up the sheet-like material. By the winding, the sheet-like material becomes a tubular shape.
Before this winding is completed, the adhesive application mechanism applies the adhesive to the adhesive application area of the sheet-shaped material. The area where the adhesive is applied and the portion of the sheet-like material that overlaps this area are adhered by the applied adhesive.

Therefore, the sheet-like material needs to have a length of at least two layers at least at the end portion due to the winding. Further, the adhesive application area for applying the adhesive needs to correspond to a portion having two or more layers when formed into a tubular shape by winding. The adhesive application area may be on the front surface side or the back surface side of the sheet-like material,
Both sides may be used.

Next, the disengagement mechanism displaces the formed polygonal tubular body from the rotary body by moving it along the axial direction of the rotary body. After the polygonal tubular body is detached, the above operation is performed on a new sheet-shaped article to successively produce polygonal tubular bodies. In this way, the polygonal tubular body can be efficiently manufactured.

[0009]

An embodiment of the present invention will now be described with reference to the drawings. An apparatus 10 for manufacturing a polygonal tubular body according to the present embodiment has a plurality of anchors as shown in FIG. 1, a partially broken front view, FIG. 2 is a partially broken plan view, and FIG. 3 is a partially broken side view. Frame 14 fixed to the floor 12 via bolts (not shown)
Each component is assembled into.

The pedestal 14 has a four-layer structure including a lower floor member 14a, a middle floor member 14b, an upper floor member 14c and a hanging member 14d. A vacuum pump 16 is provided on the lower floor member 14a.
Is installed. A horizontal moving cylinder 18 is installed substantially in the center on the left side of the middle floor member 14b in FIG. The horizontal moving cylinder 18 is provided with an arm 20 along a direction substantially orthogonal to the axial direction of the horizontal moving cylinder 18.
Is mounted via the floating member 18a. Arm 2
The plate 22 is almost horizontal to the center and both ends.
a, 22b, 22c are mounted, and auxiliary cylinders 24a, 24b, 24c are respectively mounted on these plates 22a to 22c along a substantially vertical direction. Further, these auxiliary cylinders 24a to 24c have suction cylinders 28a and 28b, each of which has an axial direction substantially parallel to the auxiliary cylinders 24a to 24c and has a suction cup 26 at an upper end thereof.
28c are connected in pairs.

Horizontal moving cylinder 18 and auxiliary cylinder 24
Compressed air can be supplied to the a to 24c and the suction cylinders 28a to 28c through an air passage (not shown).
By supplying and discharging the compressed air, the floating member 18a of the horizontal moving cylinder 18 and the arm 20 mounted on the floating member 18a can be reciprocally driven in the axial direction (horizontal direction) of the horizontal moving cylinder 18. Similarly, the auxiliary cylinder 24
a to 24c and the suction cylinders 28a to 28c can be reciprocally driven in the vertical direction, and the auxiliary cylinders 24a to
The suction cylinders 28a to 28c can be driven up and down according to the reciprocating movement of 24c.

A horizontal pushing cylinder 30 is installed on the middle floor member 14b substantially in parallel with the horizontal moving cylinder 18. Compressed air can be supplied to and discharged from the horizontal pushing cylinder 30 via an air passage (not shown). Also,
A push-out member 34 including a pair of vertical members 32a and 32b arranged in the vertical direction is attached to the horizontal push-out cylinder 30 via a floating member 30a. This allows
The horizontal push-out cylinder 30 responds to the supply and discharge of compressed air by
The pushing member 34 can be reciprocated along the axial direction (horizontal direction) of the horizontal pushing cylinder 30.

Further, in the middle space between the middle floor member 14b and the upper floor member 14c of the pedestal 14, a tubular rotary shaft 36 penetrates between the vertical members 32a and 32b of the pushing member 34, and the tubular rotary shaft 36 extends in its circumferential direction. It is arranged rotatably along. A motor (not shown) is connected to a left end portion 36a on the left side in FIG. 2 of the rotating shaft 36 via a reduction gear 37, and the rotating shaft 36 can be rotationally driven by the motor. In addition, an air passage 38 extending from the left end portion 36a to the right end portion 36b is provided in the rotary shaft 36.
Is provided. The left end portion 36a side of the air passage 38 is connected to the vacuum pump 16 through a route not shown. A quadrangular prism-shaped rotating body 40 is rotatably fitted and fixed to the right end portion 36b together with the rotating shaft 36. The rotating body 40 has a suction hole 44 opening to the first side surface 42 and a pair of suction holes 48 opening to the second side surface 46.
a and 48b are provided, and these suction holes 44 and 4 are provided.
8a and 48b communicate with the air passage 38. Therefore, the vacuum pump 16 can be operated to reduce the pressure in the air passage 38 and the suction holes 44, 48a, 48b.

The right end 36b of the rotary shaft 36 is rotatably connected to a columnar correction frame 52 via a bearing 50. A taper portion 54 is provided on the rotation shaft 36 side of the correction frame 52, and a correction portion 56 is provided on the side away from the rotation shaft 36 so as to be continuous with the taper portion 54. The correction portion 56 and the rotating body 40 have substantially the same cross-sectional shape along the direction orthogonal to the axis of the rotating shaft 36. Further, in the correction portion 56, grooves 58a, 58 are formed on the pair of side surfaces facing each other in the vertical position in FIG.
b is provided.

The side of the correction frame 52 opposite to the rotary shaft 36 is connected to a core member 60 having a rectangular cylindrical shape. Correction frame 5
2 and the core member 60 are inserted into a drying case 64 in which a free roller conveyor 62 is installed on each of four inner surfaces, and a cross section formed between the correction frame 52 and the core member 60 and the free roller conveyor 62. An object can move in the mouth-shaped space. The interval between the free roller conveyors 62 facing each other can be changed according to the size of the manufactured rectangular tubular body 100.

Side surfaces 64a and 64b of the drying case 64
Is provided with a pair of stopper cylinders 66a and 66b facing each other along the horizontal direction and substantially perpendicular to the side surfaces 64a and 64b of the drying case 64. The stopper cylinders 66a and 66b are provided with stoppers 68a and 68b each having an L-shaped horizontal cross section.
4 is attached by penetrating the side surfaces 64a and 64b.
These stoppers 68a and 68b are the stopper cylinder 6
The side surfaces 64a, 6 of the drying case 64 are controlled by 6a, 66b.
4b are mirror images of each other and are reciprocally driven in a horizontal direction substantially orthogonal to 4b, and when they are driven in the directions of being close to each other,
The tips of the stoppers 68a and 68b can be fitted into the grooves 58a and 58b of the correction frame 52.

On the other hand, on the middle floor member 14b, a gluing roller 70 is installed between the horizontal moving cylinder 18 and the rotary shaft 36 and having a rotary shaft substantially parallel to the rotary shaft 36. The gluing roller 70 can apply the glue supplied through the supply roller 72 shown below the gluing roller 70 in FIG. 3 to the sheet-like material in contact with the gluing roller 70 as the gluing roller 70 rotates.

On the upper floor member 14c of the pedestal 14, the supply cases 74 and 76 having a pair of U-shaped cross sections.
Are erected with their open sides facing each other. Between the supply cases 74 and 76, a plurality of sheet-like objects such as a corrugated cardboard lying on both sides can be stacked and held. Further, as shown in FIG. 3, the supply case 76 can be moved according to the length of the sheet-shaped object to be held. Further, the upper floor member 14c immediately below the supply cases 74 and 76 is provided with a passage hole 77 through which a sheet-like object can pass in a horizontal direction. 28a-28c
Can be raised and lowered.

On the hanging member 14d arranged above the upper floor member 14c, a glue pressing cylinder 78 having a substantially vertical axis is arranged directly above the glue roller 70, and the lower end thereof is glued. A glue pressing roller 80 having a rotating shaft parallel to the roller 70 is mounted. The adhesive pressing roller 80 can be driven up and down by an adhesive pressing cylinder 78, and when descending, it can rotate by sandwiching a sheet-like object with the adhesive roller 70. Further, a winding presser cylinder 82 having a shaft axis in a substantially vertical direction is installed on the hanging member 14d immediately above the rotating body 40, and a lower end of the winding shaft for winding a rotating shaft substantially parallel to the rotating shaft 36. A pressing roller 84 is attached. The take-up pressing roller 84 can be driven up and down by the take-up pressing cylinder 82, and when descending, can rotate by holding a sheet-like object with the rotating body 40. Further, an end bending cylinder 86 having a substantially vertical axis is installed side by side with the take-up pressing cylinder 82 on the hanging member 14d, and the end of the rotary shaft substantially parallel to the rotary shaft 36 is provided at the lower end thereof. Bending rollers 88 are mounted. The end-bending roller 88 can be driven up and down by an end-bending cylinder 86, and its up-and-down region is parallel to the side surface of the rotating body 40 (the second side surface 46 in the state shown in FIGS. 2 and 3) and slightly from this side surface. Far away. Therefore, the sheet-shaped object protruding from the upper side surface (the first side surface 42 in the state shown in FIGS. 2 and 3) of the rotating body 40 into the moving range of the end bending roller 88 is pressed by the lowering of the end bending roller 88. The rotator 40 can be bent around the fulcrum.

Next, a description will be given of a case where the polygonal tubular body manufacturing apparatus 10 having the above structure is used to produce the rectangular tubular body 100 shown in FIG. The manufacturing material of the rectangular tubular body 100 is the corrugated board 102 having a planar shape shown in FIG. This corrugated board 102 has two substantially rectangular cutouts 104 and 106 and two substantially trapezoidal cutouts 10.
The first surface 112, which is in the form of a band including
Second surface 114, third surface 116, fourth surface 118, fifth surface 1
20, sixth surface 122, seventh surface 124 and eighth surface 126
Is set. An overhang 128 having a width substantially corresponding to the thickness of the corrugated board 102 is provided on the first surface,
From the cutout 104 to the first surface 112 and the third surface 116,
In addition, from the cutout 106 to the third surface 116 and the fifth surface 120
A notch 13 having a width substantially equivalent to the thickness of the corrugated board 102
0a, 130b, 130c and 130d are formed. Furthermore, each surface 12 of the fifth surface 120 to the eighth surface 126
Bending lines 132a, 132b, 132c for facilitating the formation of bending lines at positions corresponding to the boundaries of 0 to 126.
As a line, a discontinuous incision line is provided. However, since the bends 132a to 132c do not penetrate the corrugated board 102, the corrugated board 102 is not cut at the bends 132a to 132c.

First, as shown in FIG. 5, this corrugated board 1
02 is stacked and held between the supply cases 74 and 76 by the set number. In this state, the auxiliary cylinders 24a to 24c and the suction cylinders 28a to 28c are extended, and the corrugated board 102 is sucked by the suction cups 26 of the suction cylinders 28a and 28b (see FIG. 5A). The corrugated board 102
, The suction cup 26 of the suction cylinder 28c does not work. Therefore, the description of the auxiliary cylinder 24c and the suction cylinder 28c will be omitted below. Then, the suction cylinders 28a and 28b are shortened, and the corrugated board 102 sucked by the suction cup 26 is pulled out from the bottoms of the supply cases 74 and 76 (see FIG. 5B).

After that, the horizontal moving cylinder 18 is driven, and the arm 20, the auxiliary cylinders 24a and 24b and the suction are held until the second surface 114 of the corrugated board 102 reaches the set position on the first side surface 42 of the rotating body 40. Cylinder 28a, 2
The corrugated board 102 is horizontally moved rightward in FIG. 2 together with 8b. When the corrugated board 102 reaches the set position, the second side surface 42 of the rotating body 40 is moved to the second position as described above.
The surface 114 is located and the fifth surface 120 is located on the gluing roller 70 (see FIG. 6A). As shown in FIG. 6B, in this state, the corrugated board 102 and the rotating body 4 are
There is a gap between the first side surface 42 of 0 and the gluing roller 70. From the state shown in FIG. 6B, the auxiliary cylinders 24a and 24b are shortened to bring the corrugated board 102 into contact with the rotating body 40 and the gluing roller 70 (FIG. 6).
(See (c)).

Next, the gluing pressure cylinder 78 is extended to lower the gluing pressure roller 80, and the corrugated board 102 is sandwiched between the gluing roller 70 and the gluing pressure roller 80. At the same time, the take-up pressing cylinder 82 is extended to lower the take-up pressing roller 84, and the first side surface 4 of the rotating body 40 is rotated.
The corrugated board 102 is sandwiched between 2 and the take-up pressing roller 84, and the vacuum pump 16 is operated to adsorb the second surface 114 of the corrugated board 102 to the suction hole 44 (FIG. 7A).
reference). During this time, the suction cylinders 28a and 28b are removed from the corrugated board 102. Further, the horizontal moving cylinder 18 is driven in the opposite direction to the left in FIG.
Auxiliary cylinders 24a, 24b, suction cylinders 28a, 2
8b Other members are returned to the position shown in FIG. 2 together with the arm 20.

Here, the end bending cylinder 86 is extended to lower the end bending roller 88, and the first surface 112 of the corrugated board 102 is bent in the arrow V direction. Folded first surface 1
12 is attracted to the suction holes 48a and 48b opened on the second side surface 46 of the rotating body 40. Then the end bending cylinder 8
6 is shortened and the end bending roller 88 is raised.

After the end bending roller 88 is raised, the rotary body 40 is moved through the rotary shaft 36, and the rotary body 40 is indicated by an arrow W in FIG.
It is driven to rotate along the direction indicated by. As the rotating body 40 rotates, the corrugated board 102 is bent and wound along the side surface of the rotating body 40. Along with this, the fifth surface 12
Glue is applied to the 0th to 8th surfaces 126 on the surfaces that come into contact with the gluing roller 70 when passing between the gluing roller 70 and the glue pressing roller 80 (see FIG. 7B). Figure 7
In (b), the first layer 112 to the fourth surface 118 of the corrugated board 102 form the first layer of the rectangular tubular body 100 in a state where the rotating body 40 is rotated by 180 °. Rotating body 4
When 0 is rotated, the portions of the fifth surface 120 to the eighth surface 126 are the second layer, and the layers are stacked and wound on the first layer. Since the fifth surface 120 to the eighth surface 126 are coated with glue by the gluing roller 70, when they are wound as the second layer, they are glued to the first layer portion.

As shown in FIG. 8, the formed quadrangular tubular body 100 is wound around the outer periphery of the rotating body 40. Therefore, by operating the horizontal pushing cylinder 30 and moving the pushing member 34 along the arrow X direction, the vertical members 32a and 32b are moved to the rear end surface 100a of the rectangular tubular body 100.
The quadrangular tubular body 100 is moved in the direction of arrow X by abutting and pressing against and is separated from the rotating body 40. The vacuum pump 16 stops moving and the suction ports 44, 48a, 48
The adsorption by b is released.

At this time, the stopper cylinders 66a and 66b are shortened from the state shown in FIG.
As shown in FIG. 5, the tips of the stoppers 68a and 68b are fitted in the grooves 58a and 58b, respectively. When the pushing member 34 is thus moved in the direction of the arrow X, the vertical member 32 is moved.
When pressed by a and 32b, the rectangular tubular body 100 is indicated by an arrow X.
The front end surface 100b of the rectangular tubular body 100 contacts the stoppers 68a and 68b. If the pressing by the vertical members 32a and 32b is further continued here, the rectangular tubular body 100 becomes the vertical members 32a and 32b and the stoppers 68a and 6b.
It is sandwiched between 8b and 8b, and misalignment between layers during molding due to the winding is corrected. In addition, in addition to this, 18
Rotate it by 0 ° and return to the initial state to prepare for the next work.

Next, the stopper cylinders 66a and 66b are extended and driven to move the stopper 68 as shown in FIG. 9 (b).
The tips of a and 68b are separated from the grooves 58a and 58b, respectively. Then, the horizontal extrusion cylinder 30 is further operated to further move the vertical members 32a and 32b of the extrusion member 34 in the arrow X direction. As a result, the rectangular tubular body 100 passes between the stoppers 68a and 68b and passes through the core member 6
It is in a state of being fitted over 0. Following this, the horizontal push-out cylinder 30 is operated in the opposite direction to the above to move the floating member 30.
The pushing member 34 is returned to the initial state together with a.

Further, a rectangular tubular body 100 is sequentially formed in the same manner as described above, and the vertical members 32a, 32b of the pushing member 34 are formed.
When pushed out in the direction of the arrow X, the rectangular tubular body 100 located at the front (formed first) is sequentially guided by the free roller conveyor 62 and passes through the inside of the drying case 64, and then the drying case 64. The product is discharged from the polygonal tubular body manufacturing apparatus 10 at an outlet (not shown). Square tubular body 100
The paste is dried in the drying case 64 before it is discharged to be a finished product.

By repeating the above series of operations, the rectangular tubular body 100 can be efficiently manufactured. In the above embodiment, the switches and valves involved in the operation of the vacuum pump 16 and the operation of supplying / discharging compressed air to / from each cylinder are
It may be performed by a worker, or may be performed by a controller equipped with, for example, a microcomputer.

Although the embodiments have been described above, the present invention is not limited to such embodiments.
Various implementations are possible without departing from the scope of the present invention. For example, in the above-mentioned embodiment, a corrugated board is used as the sheet, but not limited to corrugated board, a sheet made of paper, plastic, or other material can be used. The sheet-like material may be taken out from the supply case by using a suction cup or by horizontally projecting. Further, although the quadrangular tubular body is manufactured in the above-mentioned embodiment, a polygonal tubular body having a triangular shape or a pentagonal shape or more can be manufactured by changing the shape of the rotating body.
Furthermore, the number of laminated layers by bending and winding is not limited to the above-mentioned two layers, and may be three or more layers.

[0032]

As described above, according to the apparatus for producing a polygonal tubular body of the present invention, the polygonal tubular body can be efficiently produced.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an apparatus for manufacturing a polygonal tubular body according to an embodiment.

FIG. 2 is a partially cutaway plan view of an apparatus for manufacturing a polygonal tubular body according to an embodiment.

FIG. 3 is a partially cutaway side view of the polygonal tubular body manufacturing apparatus according to the embodiment.

FIG. 4 is a plan view of a corrugated board used in Examples.

FIG. 5 is an explanatory diagram when a corrugated board is taken out from the supply case in the manufacturing apparatus for the polygonal tubular body of the embodiment.

FIG. 6 is an explanatory diagram when a corrugated board is placed on the rotating body in the polygonal tubular body manufacturing apparatus of the embodiment.

FIG. 7 is an explanatory diagram when a corrugated board is captured on the rotating body in the manufacturing apparatus for the polygonal tubular body of the embodiment.

FIG. 8 is an explanatory diagram when a quadrangular tubular body is wound and formed on a rotating body in the manufacturing apparatus for a polygonal tubular body of the embodiment.

FIG. 9 is an explanatory diagram when a quadrangular tubular body formed in the polygonal tubular body manufacturing apparatus of the embodiment is extruded from the rotating body.

FIG. 10 is a perspective view of a quadrangular tubular body formed in the polygonal tubular body manufacturing apparatus of the embodiment.

[Explanation of symbols]

10 ... Polygonal tubular manufacturing device, 18 ... Horizontal moving cylinder (placement mechanism), 18a ... Floating member (placement mechanism), 20 ... Arm (placement mechanism), 22a ...
Plate (placement mechanism), 24a ... Auxiliary cylinder (placement mechanism), 26 ... Sucker (placement mechanism), 28a ...
Adsorption cylinder (arrangement mechanism), 30 ... Horizontal extrusion cylinder (separation mechanism), 30a ... Floating member (separation mechanism), 32a, 32b ... Vertical member (separation mechanism, correction mechanism), 34 ... Extruding member (separation mechanism, correction mechanism),
36 ... Rotating shaft (winding mechanism), 40 ... Rotating body (winding mechanism), 44, 48a, 48b ... Suction hole (capturing means), 52 ... Correction frame (correction mechanism), 68
a, 68b ... Stopper (correction mechanism), 70 ... Gluing roller (adhesive application mechanism), 74, 76 ... Supply case, 80 ... Glue pressing roller (adhesive application mechanism), 82 ... .... Winding presser cylinder, 84 ... Winding presser roller, 86 ... End bending cylinder, 88 ...
Edge bending roller, 100 ... Square tubular body (polygonal tubular body), 102 ... Corrugated board (sheet-shaped article).

Claims (2)

[Claims] 1. A rotating body having a polygonal cross-sectional shape and rotatable about an axis of rotation, and a capturing means installed on one or more side surfaces of the rotating body to capture a sheet-like material, The sheet-like material captured by the capturing means is wound by the rotation of the rotating body to form a polygonal tubular body according to the outer shape of the rotating body, and the winding mechanism is set. An arrangement mechanism for arranging the sheet-like object at a position, an adhesive application mechanism for applying an adhesive to an adhesive application area of the sheet-like object, and an axis of the rotating body for the wound polygonal tubular body. An apparatus for manufacturing a polygonal tubular body, comprising: a detaching mechanism that moves along a core direction to detach from the rotating body. 2. A correction mechanism for correcting the axial length of the polygonal cylindrical body is further provided.
An apparatus for manufacturing the polygonal tubular body described.