JP2001219907A - Automatic packaging machine and method of packaging lithographic printing block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically package an object to be packaged with wrapping paper and to easily cope with fluctuation in an outer diameter size of the object. SOLUTION: A pair of upstream guide plates 52 and a pair of downstream guide plates 54 are placed on a downstream of an air nozzle 50 on a belt conveyer 21. Inner wrapping paper 29 carried on the belt conveyer 21 has its edge 29A creased along a side end of a bundle 12 of photosensitive print blocks by the upstream guide plates 52. The edge 29A is folded upward along the crease by rising guide faces 64 of the downstream guide plates 54, and then its tip is folded inward by folding guide faces 68.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically wrapping an object to be wrapped in a wrapping paper while transporting the wrapped object, and automatically attaching an adhesive tape to the wrapping paper so that the wrapped state of the wrapped object is supported. TECHNICAL FIELD The present invention relates to an automatic packaging apparatus for attaching a lithographic printing plate to a lithographic printing plate using the automatic packaging apparatus.

[0002]

2. Description of the Related Art A lithographic printing plate is prepared by subjecting a support such as an aluminum plate or a steel plate to surface treatment such as graining, anodic oxidation, or chemical conversion treatment alone or in an appropriate combination. The photosensitive composition includes a heat-sensitive composition). In such a lithographic printing plate, a strip-shaped web as a product material is cut along a longitudinal direction by a slitter device and cut along a lateral direction by a cutter device, and is processed into a predetermined product size. The lithographic printing plate thus processed to the product size is a bundle stacked for a certain number of sheets,
This bundle of planographic printing plates is packaged with light-shielding and moisture-proof interior paper.

[0003] In the operation of packaging a lithographic printing plate with interior paper, there are many types of lithographic printing plate products, and the number of lithographic printing plates contained in one bundle differs depending on the product size shipping destination. Since the outer diameter of the bundle of lithographic printing plates changes according to the product size and the number of lithographic printing plates included in one bundle, it is difficult to work with an automatic packaging device. For this reason, most of the work of packaging a bundle of planographic printing plates with interior paper is manually performed by an operator.

[0004]

Therefore, the maximum number of lithographic printing plates that can be wrapped with interior paper per unit time is substantially determined by the number of workers engaged in wrapping work. For this reason, in the manufacturing process of the lithographic printing plate, it has been difficult to adjust the packaging capacity for the lithographic printing plate in a short time according to the increase or decrease in the number of lithographic printing plates produced.

In view of the above, the present invention provides an automatic packaging apparatus capable of automatically packaging an article to be packaged with wrapping paper and easily coping with a change in the outer diameter of the article to be packaged.
It is another object of the present invention to provide a lithographic printing plate packaging method capable of automatically packaging a bundle of lithographic printing plates having various outer diameters in wrapping paper.

[0006]

The automatic packaging apparatus according to claim 1 is an automatic packaging apparatus that wraps an object to be packaged with wrapping paper while conveying the object to be packaged along a predetermined conveying path, A transport conveyor for transporting the packaged items contained in a tubular wrapping paper longer than the packaged items in a road width direction orthogonal to the transport direction, and side ends of the packaged items transported on the transport conveyor A first guide member that presses the ears of the wrapping paper protruding from the portion onto the conveyor, and forms a fold along the side end of the packaged object on the ears of the wrapping paper; and the first guide member. A second guide provided on the downstream side of the wrapper, for bending the ears of the wrapping paper conveyed on the conveyance conveyor upward along the folding habit, and extending the front end of the ears above the article to be packaged. A member, provided downstream of the second guide member; Third to adhere the leading edge of the ear portion of the wrapping paper conveyed on the feed conveyor bent inward, the top surface of the wrapping paper covering the upper surface of the tip portion of the packaged articles ears
And a guide member.

[0007] According to the automatic packaging apparatus having the above-described configuration, the article to be packaged contained in the cylindrical wrapping paper is conveyed on the conveyor, and the opening of the cylindrical wrapping paper is closed. The upper part and the lower part of the ear part adhere to each other so that they can come off,
Since the ears are bent upward so as to face the side edges of the article to be packaged, and the tips of the ears are further bent inward to come into close contact with the upper surface of the wrapping paper covering the upper surface of the article to be packaged. , While the articles to be packaged in the tubular wrapping paper are transported from the upstream side to the downstream side by the transport conveyor,
The first, second, and third guide members can automatically wrap the packaged object with the wrapping paper. At this time, since the wrapping paper can be formed into a three-dimensional shape corresponding to the outer shape of the wrapped object by the first, second, and third guide members, the appearance quality of the wrapped object wrapped by the wrapping paper is improved.

[0008] The automatic packaging apparatus according to the second aspect is the first aspect.
In the automatic packaging apparatus described above, an adhesive tape is pressed against wrapping paper provided on the downstream side of the third guide member and conveyed on the conveyor, and the ears of the wrapping paper are wrapped by the adhesive tape. It has tape attaching means for attaching to the upper surface of paper.

According to the automatic packaging apparatus having the above-described structure, the attaching means provided on the downstream side of the third guide member presses the adhesive tape against the wrapping paper conveyed on the conveyor, and the adhesive tape is By attaching the ears of the wrapping paper to the upper surface of the wrapping paper, the wrapping paper is maintained in a state of wrapping the article to be wrapped.

[0010] The automatic packaging apparatus according to the third aspect is the first aspect.
3. The automatic packaging apparatus according to claim 2, wherein the tape affixing means is rotatably supported around a spindle portion parallel to the road width direction, and is packaged on the transport conveyor by a roller surface. A pressure roller for pressing an adhesive tape on paper, a tape supply unit for supplying an adhesive tape between the roller surface of the pressure roller and the wrapping paper conveyed on the conveyor, and an adhesive from the tape supply unit. And a roller drive unit that rotates the pressure roller at a speed corresponding to the speed at which the package is transported by the transport conveyor when the conductive tape is supplied.

According to the automatic packaging apparatus having the above configuration, when the adhesive tape is supplied from the tape supply section, the roller driving section rotates the pressure roller at a speed corresponding to the transport speed of the packaged object by the transport conveyor. After the pressure roller presses the adhesive tape against the wrapping paper, the adhesive tape can be unwound from the pressure roller at a speed corresponding to the speed at which the wrapping paper is transported by the transport conveyor. The adhesive tape can be stuck to the wrapping paper without any gap without causing any movement resistance from the adhesive tape. Therefore, when the adhesive tape is attached to the wrapping paper, the wrapping paper is not wrinkled or the wrapping paper is not torn by the movement resistance from the adhesive tape.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. (Structure of Embodiment) FIG. 1 shows an automatic packaging apparatus 10 according to an embodiment of the present invention. The automatic packaging apparatus 10 is for automatically packaging a bundle of photosensitive printing plates (hereinafter, referred to as a PS plate bundle) cut into a predetermined product size with light-shielding and moisture-proof interior paper. is there. In FIG. 1, the arrow labeled F indicates the transport direction of the PS plate bundle 12 in the automatic packaging apparatus 10, and the arrow labeled G indicates the road width direction orthogonal to the transport direction. .

The PS plate bundle 12 is formed by stacking a number of photosensitive printing plates corresponding to the product size and the like and two cardboards.
These are fixed with an adhesive tape, and the cardboard is placed at the bottom and top of the PS plate bundle 12, respectively, to protect the photosensitive printing plate. Here, each of the photosensitive printing plate and the cardboard has a rectangular shape. Thereby, the PS plate bundle 12 has a rectangular parallelepiped outer shape,
The dimension in the thickness direction changes according to the number of photosensitive printing plates included in the plate bundle 12, and the vertical and horizontal dimensions perpendicular to the thickness direction change according to the product size of the photosensitive printing plates.

The automatic packaging apparatus 10 is provided with a roller conveyor 16 at the most upstream side in the transport direction. The roller conveyor 16 includes a plurality of transport rollers 14 having a columnar shape. These transport rollers 14 are arranged at a constant pitch along the transport direction, and their rotation axes are supported by device frames (not shown) so as to be parallel to the road width direction. The roller conveyor 16
When the PS plate bundle 12 is sent from the upstream side, the transport rollers 14 are rotated to transport the PS plate bundle 12 at a constant speed to the downstream side.

The automatic packaging apparatus 10 includes a roller conveyor 1
6 belt conveyors 18 to 22 on the downstream side in the conveying direction of 6
Is provided. The belt conveyor 18 includes a pair of cylindrical rollers 24 and 25 and these rollers 2.
4 and 25 are provided with a loop-shaped transport belt 27 stretched over the outer peripheral surface. Here, the roller 24 on the upstream side in the transport direction is a drive roller that rotates by transmitting a torque by a drive mechanism (not shown), and the roller 25 on the downstream side in the transport direction is a roller 24 by the torque transmitted by the transport belt 27. And a driven roller that is driven to rotate. Further, the belt conveyors 19 to 22 have the same structure as the roller conveyor 18, and have a pair of rollers 24,
25 and a conveyor belt 27.

The automatic packaging apparatus 10 includes a roller conveyor 16
An interior paper supply mechanism 31 for supplying interior paper 29 from a gap between the belt conveyor 18 is provided. The interior paper supply mechanism 31 rotatably supports an interior paper roll 33 on which the interior paper 29 is wound in a coil shape below the belt conveyor 18. The interior paper supply mechanism 31 is provided with a feed roller 35 and a pinch roller 37 disposed between the roller conveyor 16 and the belt conveyor 18, and extends from the interior paper roll 33 to a nip portion between the feed roller 35 and the pinch roller 37. A plurality of guide rollers 39 for guiding the ejected interior paper 29 are provided.

Feed roller 35 of interior paper supply mechanism 31
7, a distal end of a leaf spring-shaped holding guide plate 110 is supported in a cantilevered state. The pressing guide plate 110 guides the interior paper 29 sent from the feed roller 35 and the pinch roller 37 so as to extend downstream along the conveying direction along the upper surface of the belt conveyor 18.

On the downstream side of the holding guide plate 110, a comb-like lifting guide plate 112 is provided between the belts of the belt conveyor 18.
Is arranged. The comb-shaped lifting guide plate 112 is swingably supported about a spindle 112A provided in parallel with the rollers 24 and 25 of the belt conveyor 18, respectively. The comb-shaped lifting guide plate 112 is urged clockwise about the support shaft portion 112A, and the leading end is located above the belt conveyor 18. On the downstream side of the lifting guide plate 112, a paper pressing member 114 is supported above the belt conveyor 18 in a cantilever state.

The interior paper supply mechanism 31 includes the roller conveyor 1
When the PS plate bundle 12 is conveyed to a predetermined position by 6, the feed roller 35 is rotated. Thereby, the interior paper 2
9 is guided by the presser guide plate 110 and extends downstream in the transport direction of the belt conveyor 18 to form the PS plate bundle 1.
When the roller 2 is conveyed onto the belt conveyor 18 by the roller conveyor 16, it merges with the interior paper 29 and is placed on the belt conveyor 18 via the interior paper 29.

The interior paper supply mechanism 31 includes the belt conveyor 1
The inner paper 29 is fed out from the inner paper roll 33 at a speed equal to the transport speed of No. 8. At this time, as shown in FIG. 7A, the lifting guide plate 112 lifts the leading end portion of the interior paper 29 upward, and then comes into contact with the PS plate bundle 12 via the interior paper 29, as shown in FIG. As shown in FIG. 7, the PS plate bundle 12 is pushed down below the belt conveyor 18 by the weight. Further, the paper pressing member 114 bends the leading end of the interior paper 29 lifted by the lifting guide plate 112 and conveyed to the downstream side toward the upper surface side of the PS plate bundle 12 as shown in FIG.

When the interior paper supply mechanism 31 feeds out the interior paper 29 having a length corresponding to the outer shape of the PS plate bundle 12, a cutter (not shown) arranged downstream of the feed roller 35 is provided.
To cut the interior paper 29. Here, the interior paper 29 is
The PS plate bundle 12 is cut to a length obtained by adding a predetermined overlap margin to the outer peripheral length along the transport direction and the thickness direction, and the PS plate bundle 12 is placed on the center of the upper surface of the interior paper 29 in the road width direction. The belt is conveyed together with the interior paper 29 onto the belt conveyor 19 on the downstream side by the belt conveyor 18.

The automatic wrapping apparatus 10 includes an interior paper supply mechanism 3.
A glue ejecting device 41 is provided above one feed roller 35. The glue ejecting device 41 ejects fluid glue immediately before the interior paper supply mechanism 31 cuts the interior paper 29, and drops the adhesive on the rear end of the upper surface of the interior paper 29.

The belt conveyor 19 arranged downstream of the belt conveyor 18 has a length in the transport direction set slightly larger than the length of the PS plate bundle 12. The belt conveyor 19 has a lift mechanism 4 as shown in FIG.
3 support the movable member in the vertical direction. When the PS plate bundle 12 is transported by the belt conveyor 19, the lift mechanism 43 moves the belt conveyor 19 to the upstream and downstream belt conveyors 18, 20 as shown in FIG.
And kept at the same height.

When the belt conveyor 19 transports the PS plate bundle 12 to the center position in the transport direction, it temporarily stops. At this time, the lower surface of the PS plate bundle 12 and the belt conveyor 1
The interior paper 29 laid between the front and back ends 9 extends at both ends in the width direction.

When the belt conveyor 19 on which the PS plate bundle 12 is placed stops once, the lift mechanism 43 moves the belt conveyor 19 to the belt conveyor 1 as shown in FIG.
It is lowered from the transport position having the same height as 8, 20. Thereby, the upstream end of the interior paper 29 is connected to the belt conveyor 1.
9 descends and is bent upward by the belt conveyor 18.

Above the belt conveyor 19, as shown in FIG.
8 are arranged. Here, a pair of holding levers 45,
Numeral 46 is connected to an eccentric cam mechanism (not shown), and the eccentric cam mechanism operates to simultaneously perform the lowering operation and the swinging operation. The gluing plate 48 is connected to a piston mechanism (not shown), and is supported by the piston mechanism above a central portion in the road width direction on the upper surface of the belt conveyor 19, and is vertically moved by the operation of the piston mechanism. Reciprocate.

As shown in FIG. 2B, the lift mechanism 4
When the belt conveyor 19 is lowered from the transport position by 3, first, the downstream pressing lever 45 bends the downstream end of the interior paper 29 extending upward from the side end of the PS plate bundle 12 to the upstream side. The downstream end of the interior paper 29 is brought into close contact with the upper surface of the PS plate bundle 12. Next, the upstream press lever 46 bends the upstream end of the interior paper 29 extending upward from the side end of the PS plate bundle 12 to the downstream side, and this interior paper 29
Is brought into close contact with the upper surface of the PS plate bundle 12 via the downstream end of the interior paper 29.

The pair of holding levers 45, 46
2 is brought into close contact with the upper surface of the bundle of PS plates 12 as shown in FIG.
As shown in (C), the glued plate 48 descends and the interior paper 2
9 is pressed against the upstream end of the interior paper 29.
At this time, the glue dropped on the downstream end of the interior paper 29 is located above the central portion of the upper surface of the belt conveyor 19 in the road width direction. Accordingly, the interior paper 29 has a tubular shape in which the upstream end and the downstream end of the interior paper 29 are glued with glue, and both ends in the road width direction are opened. Glued plate 48
After the interior paper 29 is pressed against the upper surface of the PS plate bundle 12 until the glue is solidified and gluing is ensured, the interior paper 29 is raised by the piston mechanism and returns to the standby position shown in FIG.

When the glue plate 48 returns to the standby position, the belt conveyor 19 returns to the transport position by the lift mechanism 43, resumes the transport of the PS plate bundle 12, and transfers the PS plate bundle 12 to the downstream belt conveyor 20. The belt conveyor 20 transports the PS plate bundle 12 further downstream to the belt conveyor 21.
Convey up.

Above the upstream end of the belt conveyor 21, a pair of air nozzles 50 are arranged. The pair of air nozzles 50 is used for the P conveyed on the belt conveyor 21.
The PS plate bundle is arranged so as to correspond to both ends in the road width direction of the S plate bundle 12, connected to a high-pressure air source (not shown) including an air tank, a compressor, and the like, and conveyed on the belt conveyor 21. The high-pressure air is blown onto the interior paper 29 containing 12. At this time, the high-pressure air from the air nozzles 50 is blown to the ears 29A of the interior paper 29 that protrude outward from the side ends of the PS plate bundle 12 in the road width direction. As a result, the ears 29A of the interior paper 29 are pushed in the direction of the belt conveyor 21 to prevent curling and jumping of the ears 29A.

On the belt conveyor 21, an air nozzle 5
A pair of upstream guide plates 52 is disposed downstream of the pair 0, and a pair of downstream guide plates 54 are disposed downstream of the pair of upstream guide plates. Here, the pair of upstream guide plates 52 and the pair of downstream guide plates 54 are supported by support frames provided on the belt conveyor 21, respectively, and can be adjusted in the road width direction.

As shown in FIG. 3, the upstream guide plate 52 has a substantially parallelogram flat plate shape, and its thickness direction matches the road width direction and its longitudinal direction matches the transport direction. It is supported to be. Upstream guide plate 52
At the lower end of the belt conveyor, an inclined guide surface 56 is provided at the end on the upstream side in the transport direction and is inclined with respect to the upper surface of the belt conveyor 21.
1 is provided with a parallel guide surface 58 which is parallel to the upper surface. The inclined guide surface 56 of the upstream side guide plate 52 is inclined so that the distance between the belt guide conveyor 21 and the belt conveyor 21 becomes gradually smaller in the transport direction. Is formed.

At the upper end of the upstream guide plate 52, as shown in FIG. 3, an inclined surface 60 is provided at an end on the downstream side in the transport direction so as to gradually approach the belt conveyor 21 in the transport direction. ing. Here, the pair of upstream guide plates 52 are respectively provided in the belt conveyor 21 in the road width direction.
The position is adjusted with reference to the side end of the PS plate bundle 12 conveyed above, and fixed at a position slightly outside the side end of the PS plate bundle 12. The downstream end of the upstream guide plate 52 partially overlaps the upstream end of the downstream guide plate 54 in the transport direction, and the downstream guide plate 54 in the path width direction.
Are arranged inside the upstream end of the.

The inner paper 29 conveyed on the belt conveyor 21 has an ear 29A pushed toward the belt conveyor 21 by high-pressure air from the air nozzle 50 inserted between the downstream guide plate 52 and the belt conveyor 21. I do.
With the ears 29A inserted between the inclined guide surface 56 of the upstream guide plate 52 and the belt conveyor 21, the interior paper 29 is conveyed downstream by the belt conveyor 21 and is formed cylindrical by the inclined guide surface 56. Is pushed in the direction of the belt conveyor 21. Thereby, the ear part 2
The upper side of 9A approaches the lower side, and near the end of the inclined guide surface 56, the upper side of the ear 29A closely adheres to the lower side.

When the interior paper 29 is further conveyed downstream by the belt conveyor 21, the lugs 29A are inserted between the parallel guide surface 58 and the belt conveyor 21. As a result, the ear portion 29A in which the upper side and the lower side are in close contact with each other
Is kept pressed on the belt conveyor 21 by the parallel guide surface 58. Here, since the upstream guide plate 52 is located slightly outside the side end of the PS plate bundle 12 and extends in parallel with the side end of the PS plate bundle 12, the parallel guide surface 58 is provided. As a result, the cylindrical ear portion 29A is bent along the side end of the bundle of PS plates 12.

As shown in FIG. 3, the downstream guide plate 54 is provided with a flat side plate portion 62 at the lower side.
The side plate portion 62 is formed to be elongated in the transport direction, and is supported such that the longitudinal direction matches the transport direction and the thickness direction matches the road width direction. At the upper end of the side plate portion 62, the belt conveyor 21 is moved upstream in the conveying direction.
There is provided a rising guide surface 64 which is inclined so as to be away from the vehicle. The lower end of the side plate portion 62 has a planar shape, and is a mechanism that can be positioned below the upper surface of the belt conveyor 21.

The downstream guide plate 54 has a rising guide surface 6
A top plate 66 bent inward from the upper end of the side plate 62 is provided downstream of the top plate 4. The top plate 66 has a flat plate shape and is supported so as to be parallel to the upper surface of the belt conveyor 21. The top plate 66 is provided with a folding guide surface 68 that is inclined inward in the transport direction at an end on the upstream side. Here, the distance from the upper surface of the belt conveyor 21 to the lower surface of the top plate portion 66 is substantially equal to the thickness of the PS plate bundle 12.

The edge 29A of the interior paper 29, which has been bent by the upstream guide plate 52, is shown in FIG. 4 when its leading end in the transport direction reaches the downstream end of the upstream guide plate. So as to ride on the rising guide surface 64 of the downstream guide plate 54 as described above. In this state, when the interior paper 29 is conveyed to the downstream side by the belt conveyor 21, the ear portion 29A is lifted upward along the rising guide surface 64 while the interior paper 29 moves downstream. Thereby, the ear part 29A
Is bent upward along the fold formed by the upstream guide plate 52, and its base end is in close contact with the side end of the PS plate bundle 12, and its distal end extends above the PS plate bundle 12. The upward bending operation of the ear portion 29A is performed near the upstream end of the rising guide surface 64 overlapping the downstream end of the upstream guide plate 52 in the transport direction. The upwardly bent ear portion 29A is held by the inner surface of the side plate portion 62 in close contact with the side end portion of the PS plate bundle 12.

The edge 29A of the interior paper 29 bent upward by the rising guide surface 64 reaches the upstream end of the top plate 66 when the leading end in the transport direction reaches the PS plate bundle 12.
The tip end of the ear portion 29A extending upward from the side end portion contacts the upstream end portion of the folding guide surface 68. From this state, the interior paper 29 is conveyed to the downstream side, and the folding guide surface 68 bends the front end of the ear 29A inward along the upper edge of the PS plate bundle 12 as shown in FIG.

Both ends of the bundle of PS plates 12 are inserted under the top plate 66 together with the tip of the inwardly bent ear 29A. At this time, since the distance from the upper surface of the belt conveyor 21 to the lower surface of the top plate portion 66 is substantially equal to the thickness of the PS plate bundle 12, the transport belt 27 stretched between the rollers 24 and 25 and the top plate portion 66 Means that the ear 29A of the interior paper 29 is sandwiched, the interior paper 29 moves downstream, and the ear 29A is brought into close contact with the upper surface of the interior paper 29. As a result, the PS plate bundle 12 transported to the downstream side of the downstream guide plate 54 by the belt conveyor 21 is in a state of being wrapped by the interior paper 29.

Above the belt conveyor 22 on the downstream side of the belt conveyor 21, a pair of tape sticking mechanisms 70 are arranged as shown in FIG. Tape sticking mechanism 70
Is supported by a support frame (not shown) provided above the belt conveyor 22. Tape sticking mechanism 7
0 is a tape reel 7 on which the adhesive tape 72 is wound.
4 is provided.

As shown in FIG. 6 (A), the tape attaching mechanism 70 has a tape attaching section 7 below the tape supply section 76.
The tape affixing section 78 includes a pair of roller frames 80 which are parallel to each other. Between the pair of roller frames 80, an idle roller 82 and a pressure roller 84 are disposed at an upstream end and a downstream end, respectively.
An intermediate roller 85 is disposed at an intermediate portion between the two. These rollers 80, 82, and 84 are supported so as to be rotatable around support shafts (not shown) parallel to the road width direction.

A motor unit 86 is disposed outside one of the roller frames 80, and an idle roller 82 coaxially connected to a support shaft of the pressure roller 84 is rotatably supported. A drive pulley 92 is coaxially connected to the motor unit 86, and a loop belt 94 is wound around the drive pulley 92 and the driven pulley 90. Thus, the pressure roller 84 is connected to the motor unit 86 via the driving pulley 92, the belt 94, and the driven pulley 90. In the tape sticking mechanism 70, a guide roller 96 is provided between the tape supply unit 76 and the pair of roller frames 80 as shown in FIG.

The pair of tape affixing portions 78 are supported by a support frame (not shown) centered on the axis S of the idle roller 82.
The rocker is supported so as to be able to swing. An actuator (not shown) such as a piston drive device is connected to the pair of roller frames 80 at the ends on the side of the pressure roller 84.
This actuator swings the tape sticking section 78 from the standby position shown in FIG. 6A to the sticking position shown in FIG. 6B at the time of operation, and waits for the tape sticking section 78 at the sticking position when the sticking is completed. Return to position. The tape affixing section 78 is supported by a support frame so as to be position-adjustable in the road width direction, and the pressure roller 84 is located at a position corresponding to the ear 29A of the interior paper 29 conveyed on the belt conveyor 22. The position is adjusted in the road width direction.

Here, the roller surface 84A of the pressure roller 84
When the tape affixing portion 78 is at the standby position, the PS plate bundle 12 on the belt conveyor 22 is separated from the interior paper 29 wrapping the PS plate bundle 12 and when the tape affixing portion 78 is at the attaching position, the PS plate bundle 12 on the belt conveyor 22 is removed. It is pressed against the wrapped interior paper 29. At this time, the center of the pressure roller 84 in the axial direction substantially coincides with the tip of the ear 29A of the interior paper 29. Further, when the tape application section 78 moves from the standby position to the application position, the motor unit 86 rotates the pressure roller 84 at a predetermined rotation speed, and makes the linear speed of the roller surface 84A equal to the transport speed of the belt conveyor 22.

The adhesive tape 72 extending from the tape reel 74 of the tape supply section 76 reaches a tape attaching section 78 via a guide roller 96 as shown in FIG. As shown in FIG. 6, the adhesive tape 72 is wound around the lower side of the outer peripheral surface of the idle roller 82 and the upper end of the outer peripheral surface of the intermediate roller 85, and extends below the pressure roller 84. At this time, the adhesive tape 72
It is wound around the idle roller 82 and the intermediate roller 85 such that the center in the width direction coincides with the center in the axial direction of the pressure roller 84.

When the interior paper 29 wrapped with the PS plate bundle 12 is conveyed onto the belt conveyor 22 by the belt conveyor 21, the tape applying mechanism 70 maintains the tape applying section 78 at the standby position by the actuator, and the motor unit 86. To rotate the pressure roller 84. When the interior paper 29 wrapping the PS plate bundle 12 is conveyed downstream by the belt conveyor 22, the roller surface 84A of the pressure roller 84 is pressed against the interior paper 29 on the upper surface of the PS plate bundle 12 via the adhesive tape 72. I do.

The pressure roller 84 pressed against the interior paper 29 is
The pressure-sensitive adhesive tape 72 is pressed by the roller surface 84 </ b> A into an area between the ear 29 </ b> A of the interior paper 29 and the upper surface of the interior paper 29. At this time, since the linear velocity of the roller surface 84A is equal to the transport speed of the belt conveyor 22, the adhesive tape 72 is moved at a speed equal to the transport speed of the belt conveyor 22 by the frictional force with the roller surface 84A in the downstream direction in the transport direction. It is sent out to. Therefore, the interior paper 2 wrapping the PS plate bundle 12
9 is conveyed to the downstream side by the belt conveyor 22, and the adhesive tape 72 is attached from the downstream end of the region extending between the ears 29 </ b> A of the interior paper 29 and the upper surface of the interior paper 29.

When the interior paper 29 wrapping the bundle of PS plates 12 is conveyed by the belt conveyor 22 and the pressure roller 84 relatively moves to a position slightly downstream from the upstream end of the interior paper 29, FIG. B) is lowered by an actuator (not shown) such as a piston driving mechanism, and the adhesive tape 72 is moved on the downstream end of the interior paper 29.
Disconnect. As a result, the ears 29A of the interior paper 29 are adhered to the upper surface of the interior paper 29 with the adhesive tape 72, and the interior paper 29 remains P until the adhesive tape 72 is removed.
The S plate bundle 12 is maintained in a packaged state.

As the interior paper 29 used in the automatic packaging apparatus 10 described above, for example, kraft paper which is bonded with polyester obtained by dissolving aluminum foil (aluminum kraft paper), or kraft paper having a basis weight of 100 g / or less can be used. A material coated with a light-shielding agent and a moisture-proofing agent is used. Here, the inner paper 29 having relatively high rigidity, such as aluminum kraft paper, does not wrinkle or tear even if a considerably large transport resistance is applied from the adhesive tape 72, so that the pressure roller 84 is transported by the belt conveyor 22. The motor unit 86 that rotates at a speed corresponding to the speed can be saved. On the other hand, the interior paper 29 having a relatively low rigidity (weakness), such as kraft paper having a basis weight of 100 g / or less, coated with a light-shielding agent and a moisture-proofing agent, does not easily generate wrinkles and tears.
In order to attach the belt to the interior paper 29, it is necessary to rotate the pressure roller 84 at a speed corresponding to the transport speed of the belt conveyor 22.

When the adhesive tape 72 is applied, the pressure roller 84 does not necessarily need to be rotated at a speed at which the linear speed of the roller surface 84A is equal to the transport speed of the belt conveyor 22. , The pressure roller 8 according to the level of the conveyor speed of the belt conveyor 22.
By finely adjusting the rotation speed of 4, the adhesive tape 72 can be attached to the interior paper 29 without causing wrinkles, tears, and the like.

Next, the PS packaged with the interior paper 29
A method for dealing with a case where the outer dimensions of the plate bundle 12 have changed will be described.

The belt conveyor 21 on which the guide plates 52 and 54 are arranged is not shown in detail in FIGS. 1 and 3 to 5, but as shown in FIG.
It has a split structure. In the belt conveyor 21, movable conveyor parts 21A and 21C whose positions can be adjusted in the axial direction are arranged at both ends in the axial direction (road width direction), and a fixed conveyor part 21B is arranged between them. . On the other hand, the position of the pair of upstream guide plates 52 can be adjusted in the road width direction, and the pair of downstream guide plates 5
Numerals 4 are position-adjustable in the road width direction and the height direction, respectively.

If the outer dimensions of the bundle of PS plates 12 in the road width direction change due to a change in the product size or the like, the positions of the pair of upstream guide plates 52 in the road width direction are conveyed on the belt conveyor 21 respectively. The position of the pair of downstream guide plates 54 in the road width direction is adjusted to correspond to the position of the side end portion of the PS plate bundle 12. Adjust the position according to the position of the end. Thus, even when the outer dimension of the PS plate bundle 12 in the road width direction changes, the automatic packaging apparatus 10 can automatically package the PS plate bundle 12 with the interior paper 29.

Also, the PS plate bundle 1 is changed due to a change in the product size or the like.
In the case where the outer dimensions in the transport direction 2 have changed, the length in the transport direction of the interior paper 29 supplied by the interior paper supply mechanism 31 depends on the length in the transport direction and the thickness direction of the PS plate bundle 12. Change the belt conveyor 19 and belt conveyor 2
The distance in the transport direction from 0 is adjusted to a distance corresponding to the length of the PS plate bundle 12 in the transport direction. Thus, even when the outer dimension of the PS plate bundle 12 in the transport direction changes, the automatic packaging apparatus 10 can automatically package the PS plate bundle 12 with the interior paper 29.

When the external dimensions in the thickness direction of the bundle of PS plates 12 to be packaged are changed due to a change in the number of photosensitive printing plates included in the bundle of PS plates 12 or the like, a pair of downstream guide plates 54 are provided. Are adjusted in the height direction, and the distance from the lower surface of the downstream guide plate 54 to the belt conveyor 21 is set to a length corresponding to the thickness of the PS plate bundle 12. As a result, even when the outer dimensions in the thickness direction of the PS plate bundle 12 change, the automatic packaging apparatus 10 causes the PS plate bundle
2 can be automatically packaged.

In the above, a method for responding to a case where the dimension of the PS plate bundle 12 changes in any of the transport direction, the road width direction and the thickness direction has been described. In the case of a change, it is necessary to perform a plurality of corresponding directions corresponding to those directions.

(Operation of Embodiment) Next, the operation of the automatic packaging apparatus 10 according to the present embodiment will be described.

According to the automatic packaging apparatus 10 described above,
The PS plate bundle 12 contained in the tubular interior paper 29 is conveyed to the downstream side on the roller conveyor 16 and the belt conveyors 18 to 22, and the side end opening of the tubular interior paper 29 is provided. The upper side and the lower side of the ear portion 29A are in close contact with each other so that the ear portion 29A is closed. Since the portion is bent inward and comes into close contact with the upper surface of the interior paper 29 covering the upper surface of the PS plate bundle 12, the PS plate bundle 12 stored in the tubular interior paper 29 is The belt is conveyed from the upstream side to the downstream side by the belt conveyors 18 to 22, and P
The S-plate bundle 12 can be automatically packaged. At this time, since the interior paper 29 can be formed into a three-dimensional shape corresponding to the external shape of the PS plate bundle 12 by the upstream guide plate 52 and the downstream guide plate 54, the appearance quality of the article to be packaged by the interior paper 29 is good. Becomes

According to the automatic packaging apparatus 10, the tape attaching mechanism 70 presses the adhesive tape 72 against the interior paper 29 conveyed on the belt conveyor 22, and the adhesive tape 72 causes the ear 29 A of the interior paper 29 to be pressed. Is automatically adhered to the upper surface of the interior paper 29 so that the adhesive tape 72
Thus, the interior paper 29 is maintained in a state where the PS plate bundle 12 is wrapped. In this tape sticking mechanism 70, when the adhesive tape 72 is supplied from the tape supply unit 76, the motor unit 86 causes the pressure roller 84 to move to the P by the belt conveyor 22.
By rotating the bundle of S plates at a speed corresponding to the transport speed, the pressure roller 84 presses the adhesive tape 72 against the interior paper 29, and then the adhesive tape 72 is moved to the belt conveyor 2.
2 can be unwound from the pressure roller 84 at a speed corresponding to the transport speed of 2, so that the adhesive tape 72 is wrapped without applying movement resistance from the adhesive tape 72 to the interior paper 29 transported on the belt conveyor 22. Can be pasted on paper. Therefore, the adhesive tape 72 may be
At the time of sticking to the interior paper 9, wrinkles are not formed on the interior paper 29 and the interior paper 29 is not broken due to the movement resistance from the adhesive tape 72.

[0061]

As described above, according to the automatic packaging apparatus of the present invention, the article to be packaged can be automatically wrapped with the wrapping paper, and the change in the outer diameter of the article to be packaged can be easily handled.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of an automatic packaging device according to an embodiment of the present invention.

FIG. 2 is an elevational operation of a belt conveyor by a lift mechanism in an automatic packaging apparatus according to an embodiment of the present invention, and
It is a side view for explaining the pasting operation of the interior paper by the press lever and the pasting plate.

FIG. 3 is a perspective view for explaining an operation of imparting a folding habit to an ear portion of the interior paper by an upstream guide plate in the automatic packaging apparatus according to the embodiment of the present invention.

FIG. 4 is a perspective view for explaining an operation of bending the ears of the interior paper upward by the downstream guide plate in the automatic packaging apparatus according to the embodiment of the present invention.

FIG. 5 is a perspective view for explaining an operation of bending the front end of the inner paper ear by the downstream guide plate in the automatic packaging apparatus according to the embodiment of the present invention.

FIG. 6 is a perspective view for explaining an operation of attaching a tape to interior paper by a tape attaching mechanism in the automatic packaging apparatus according to the embodiment of the present invention.

FIG. 7 is a side view for explaining a packaging operation by a press guide plate, a lifting guide plate, and a paper press member in the automatic packaging apparatus according to the embodiment of the present invention.

FIG. 8 is a front view of the guide plate and the belt conveyor in the automatic packaging device according to the embodiment of the present invention, as viewed from the upstream side in the transport direction.

[Explanation of symbols]

REFERENCE SIGNS LIST 10 automatic packaging apparatus 12 PS plate bundle (packaged object) 14 roller conveyor (transport conveyor) 18-22 belt conveyor (transport conveyor) 29 interior paper (wrapping paper) 29A ear 52 upstream guide plate (first guide member) ) 54 Downstream guide plate (second guide member, third guide member) 70 Tape attaching mechanism (tape attaching means) 76 Tape supply section 84 Pressure roller 84A Roller surface 86 Motor unit (roller drive section) 90 Follower pulley ( Roller drive unit) 92 Drive pulley (roller drive unit) 94 Belt (roller drive unit)

Continued on the front page F term (reference) 3E051 AA01 AB05 CA08 CB05 DA07 EA03 EB05 FB02 FC02 FC03 HA02 HA09 HB02 HC01 HE03 JA02 KA03 KA08 KA09 KA10 KB01 LA02 LA03 LA04 LA08 LA09 LA10 LB03

Claims (4)

[Claims] 1. An automatic packaging apparatus for wrapping an object to be wrapped with wrapping paper while conveying the object to be wrapped along a predetermined conveying path, wherein the apparatus is longer than the object to be wrapped in a road width direction orthogonal to a conveying direction. A transport conveyor for transporting the packaged articles contained in the tubular wrapping paper, and the ears of the wrapping paper protruding from the side ends of the packaged articles transported on the transport conveyor, on the transport conveyor. A first guide member that presses against the edge of the wrapping paper to form a fold along the side edge of the article to be packaged, and is provided downstream of the first guide member, and is transported on the transport conveyor. A second guide member that bends the ear of the wrapping paper upward along the folding habit and extends the tip of the ear upward of the article to be packaged, and provided on the downstream side of the second guide member. End of the wrapping paper conveyed on the conveyor Folding the parts inside, automatic packaging apparatus, characterized in that it comprises a third guide member for adhering the leading end portion of the ear portion to the upper surface of the wrapping paper covering the upper surface of the packaged articles, the. 2. An adhesive tape is provided on the wrapping paper provided on the downstream side of the third guide member and conveyed on the conveyor, and the ear of the wrapping paper is pressed by the adhesive tape. 2. The automatic packaging apparatus according to claim 1, further comprising a tape attaching means for attaching to an upper surface. 3. The tape affixing means is rotatably supported around a spindle portion parallel to the road width direction,
A pressure roller that presses the adhesive tape against the wrapping paper conveyed on the conveyor by a roller surface, and an adhesive tape is supplied between the roller surface of the pressure roller and the wrapping paper conveyed on the conveyor. 3. The automatic packaging apparatus according to claim 2, further comprising: a tape supply unit; and a roller driving unit that rotates the pressure roller at a speed corresponding to a transport speed of the packaged object by the transport conveyor. 4. A bundle of lithographic printing plates in which lithographic printing plates are stacked in the thickness direction as an article to be packaged.
A method for packaging a lithographic printing plate, characterized in that the lithographic printing plate is packaged in a wrapping paper by the automatic packaging device described in the above.