JP2607250B2 - Inner peripheral paper insertion device for cylindrical object packaging - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an inner peripheral paper insertion device for packaging cylindrical articles.

[Conventional technology]

In the case of a cylinder, for example, in the case of a thin-plate coil, insertion of the inner peripheral paper in its shipping package is proposed in Japanese Utility Model Publication No. 57-2247 and Japanese Patent Application Laid-Open No. Sho 60-172610. The former is an air bag system, and the latter is a hollow mandrel swing roll system.

[Problems to be solved by the invention]

SUMMARY OF THE INVENTION The present invention proposes an inner peripheral paper insertion device for packaging cylindrical articles with a simple structure and operation, and aims to automate the cylinder packaging operation and save labor.

[Means for solving the problem]

The present invention provides a required wrap to a mandrel previously contracted by a short stroke device via a lifting apron, an upper paper presser, a vacuum pad, and a paper end presser, by wrapping the wrapping paper previously cut to a predetermined length. The mandrel is inserted into the inner hole of the cylinder while the wrap portion is pressed by the paper end pressing device, and then the paper end pressing device is released, and the plurality of segments of the mandrel are separated one by one. The wrapping paper is laid in the inner hole of the cylindrical body by successively expanding and contacting the surface of the segment with the cushioning material and the wall of the inner hole of the cylindrical body. When the final segment is enlarged, the minimum required wrap is left, and the tail end of the wrapping paper is fixed by the adhesive device installed in the mandrel for cylindrical packaging. It is a division paper insertion device.

 The present invention will be described below with reference to the drawings.

 FIG. 1 is a three-dimensional view showing an embodiment of the present invention.

10a, 10b, 10c are wrapping paper rolls, 13 is a pinch roll, 1
7 is a wrapping paper cutting device, 15 is a wrapping paper supply device, 30 is an inner paper winding mandrel, 30-5 is a mandrel lifting / lowering electric cylinder, 30-8 is a mandrel rotation motor, 36 is a paper end holding device, 37 is A mandrel traversing motor, 1 is a coil to be wrapped, 1a is an inner peripheral hole of the coil to be wrapped, and 2 is a transport facility.

 FIG. 2 is an overall plan view, and FIG. 3 is an overall side view.

10a, 10b, and 10c are prepared in such a manner that the inner diameter of the coil to be wrapped 1 corresponds to the width of the wrapping paper roll. The wrapping paper 10 is pulled out onto the supply device 15 by a length corresponding to the width of the coil 1 to be wrapped.

The wrapping paper 10a, 10b, 10c of different widths wound on a paper tube is supported via a normal mechanism, and pinch rolls 12a, 12b, 12c
And guides 14 according to their drive motors 13a, 13b, 13c.
Is sent to the wrapping paper supply device 15 via the.

FIG. 4 is a side view of the wrapping paper supply device 15, and FIG. 5 is a plan view thereof.

A movable machine frame 20-1 is provided on the fixed machine frame 20 so as to be slidable in a direction perpendicular to a supply direction of the paper sent to the pinch roll via a traverse cylinder 20-2 and a traverse guide 20-3.

An upper paper holder 20-8 is provided at one end of the movable machine frame 20-1 so as to be able to move up and down by an elevating cylinder 20-6 and a piston rod 20-6b.
4 is provided so as to be movable up and down by a lifting cylinder 20-5. A pair of guide rails 14 is fixed along the upper frame of the movable machine frame 20-1 in the paper feeding direction from the pinch roll.

FIG. 6 shows a wrapping paper suction device, and FIG. 7 shows a detailed view of the wrapping paper suction device.

Linear guides 14-1 are attached to both sides of the guide rail 14, and a vacuum pad holding member is provided along 14-1.
14-2 is slidably mounted. 14-2, as shown in FIGS. 4 and 5, the pinch is provided via a drive motor 15-4, a chain sprocket 15-2, a clutch 15-3, and a chain 14-9 shown in FIGS. 6 and 7. It can slide in the paper feed direction from the roll.

As shown in FIGS. 6 and 7, the vacuum pad holding sliding member 14-2 has a vacuum pad 14-7 or 14-.
8. Vacuum ejector 14-4, air filter 14-5
Is mounted so as to be able to ascend and descend via a vacuum pad elevating cylinder 14-6 and an elevating guide 14-3. The wrapping paper adsorbs the wrapping paper 10 to the vacuum pads 14-7 and 14-8 by the negative pressure generated by the vacuum ejector.

When the paper is sent from the pinch roll and the head of the paper comes to the entrance of the wrapping paper supply device 15, the vacuum pad 14-7
Is lowered to adsorb the wrapping paper, and then raised.
Is slid in the direction A in FIG. At this time, clutch 15-3
Is separated. Therefore, in this case, the outer pads 14-
Only 7 slides.

When the wrapping paper is pulled out by a required length, the feeding is stopped, the inner pad 14-8 is lowered, the wrapping paper is sucked, and the cutting device shown in FIG. 8 is operated to cut the wrapping paper. -8 is raised while adsorbing the wrapping paper.

Next, the clutch 15-3 is actuated, and the head of the wrapping paper is simultaneously moved in the direction A in FIG. 5 while the tail portion of the wrapping paper is sucked by the vacuum pad 14-7 with the pad 14-8. Try to match.

 8 and 9 show details of the wrapping paper cutting device.

A traverse guide 17-4 and a cutter rotation guide chain 18-2 are fixed to the machine frame 19, and a cutter holding sliding member 18-1 is further fixed thereon with a cutter rotation sprocket 18-3.
Is supported as shown in FIG. Chain drive motor 1
7, Chain 17-1, Sprocket 17-2, Chain 17
-3 through the traverse guide 17 through the sliding member 18-1.
-4, the cutter rotating sprocket 18-3 is rotated by the guide chain 18-2, and the circular blade 18 is rotated through the bearing 18-4.

In the upper apron part of the cutter support frame 19, the rotary blade 18
Is provided with an opening 19-1 necessary for the passage of, rubber cushioning or the like is attached on both sides thereof, and a paper presser 16-2,
The lifting cylinder 16 and its guide 16-1 are provided at both ends. Attach cushioning rubber or equivalent to the contact surface of the paper retainer 16-2 with the wrapping paper 10.

When cutting the wrapping paper, the cylinder 16 is operated and the paper presser 16-
2 lower, wrapping paper 10 and upper apron part of machine frame 19 and paper presser
In the state fixed at 16-2, the cutter traverse chain drive motor 17 is driven to rotate the rotary blade 18 from one end in a direction perpendicular to the paper feeding direction as shown in FIG. I do.

FIG. 10, FIG. 11-1 and FIG. 11-2 are explanatory views of the structure of the wrapping paper winding mandrel.

A plurality of segments (eight in this example, 34-1 to 34-8) are a motor for expansion and contraction (not shown), a bevel gear 31 for expansion and contraction, a drive shaft 31-1 for expansion and contraction, a screw 32 for expansion and contraction, and a short stroke. Both ends of the hollow shaft 30-1 are supported so as to be expandable and contractible around the hollow shaft 30-1 via an expansion / contraction cylinder 33.

The adjustment of the mandrel outer diameter with respect to the inner diameter of the coil to be wrapped is performed by simultaneously moving the screws 32-1 to 32-8.
33-8 can be operated independently for each segment.
The short stroke amount in this embodiment is about 30 mm in diameter.
It is.

A plurality of vacuum pads 35 for suction, which can be selected according to the coil width to be wrapped, are provided on one of the segments at regular intervals (in this embodiment, at 100 mm intervals) for gripping the wrapping paper head. Install according to.

The radius of curvature of each segment is set to the minimum inner diameter of the coil 1 to be wrapped, and a cushioning material (for example, nylon brush or the like) is provided on the surface thereof. Press the wrapper evenly.

The segment provided with the vacuum pad has a slit 40-1 in the mandrel axis direction suitable for the width of the coil 1 to be wrapped.
(E.g., a tape application device) is provided so as to be slidable in the mandrel axial direction and to be able to be moved in and out in the mandrel radial direction. In this embodiment, a tape sticking device is applied as a paper edge bonding device.

The taping device 40 includes a sliding member 41, a traverse guide mounting bracket 41-1, a mandrel axial traverse guide 41-2, a take-in / take-out guide 41-3, a tape roll 42, a tape feed roller 43, a taping device take-in / take-out cylinder 44, and tape sticking. Presser roller 45, tape cutter
46, motor 47 for taping device traverse, chain
47-1, a sprocket 47-2, and a drive screw 47-3.

Actuate the lifting / lowering cylinder 44 and push the tape pull-out end 42-1 against the inner peripheral paper bonding part to traverse the motor.
The tape can be applied in the width direction of the coil along the inner peripheral surface of the coil to be wrapped, via the part 47 and the related portion.

FIG. 12-1 is a mandrel lifting / lowering, traversing and rotation driving diagram, and FIG. 12-2 is a side view thereof.

The lifting and lowering of the andrel 30 is performed by the operation of the electric cylinder 30-5 installed via the bracket 30-3 and the pin 30-4 on the gate-shaped movable machine frame 30-2, and the mandrel support is raised and lowered via the piston rod 30-6. The frame 30-7 is connected to the gate type movable frame 30.
-2.

The mandrel lifting frame 30-7 includes a lifting guide 30-7a, and is fitted to the lifting guide 30-2a provided on the portal movable frame 30-2.

The mandrel 30 traverses the drive motor 37, chain and sprocket 37-installed on the machine base 37-5 on the floor.
1, the bearing 37-2, the drive shaft 37-3, the female screw box 37-4, the traveling rail 38, and the guide guide 38-1 via the portal type movable machine frame 30-
2 is moved in the axial direction of the coil 1 to be wrapped.

The rotation of the mandrel 30 is controlled by a motor 30-8, a chain and a sprocket 30-8a installed in a lifting frame 30-7.
And through a bearing 30-8b.

As shown in FIG. 12A, the base of the mandrel 30 is rotatably supported by the elevating frame 30-7, and the main body provided with the expanding / contracting portion is projected in the axial direction of the coil 1 to be wrapped.

FIG. 13 is an explanatory diagram (plan view) of the operation of the paper edge pressing device, FIG. 14-1 is an explanatory diagram (side view) of the operation of the paper edge pressing device.

Mandrel lifting frame 30-7, bracket 36-6
And a slide guide 36-4 and a fluid pressure cylinder 36-1 are provided via the first and second parts 36-2.

Artificial turf or equivalent on the surface in contact with the mandrel segment
A linear guide is attached to the base of the paper end
36-5 is provided and fitted with the sliding guide 36-4. The linear guide base is connected to a cylinder rod 36-3 of a hydraulic cylinder 36-1 via a connecting bar 36-7.

FIGS. 13 and 14 both show a state in which the paper-end pressing device is most advanced to the wrapped coil 1 side.

When the diameter of the inner peripheral hole of the wrapped coil 1 fluctuates in a wide range, the brackets 36-2 and 36-6 shown in FIG. 13 are integrated into a mandrel core so as to be adjustable in the radial direction. What is necessary is just to attach to the frame 30-7.

FIG. 15 shows the wrapping paper 10 cut to a fixed size,
And a process of winding the mandrel 30 around the mandrel 30 via the paper end holding device 36.

FIG. 16 shows that the wrapping paper 10 wound around the mandrel 30 is inserted into the inner peripheral hole 1a of the coil 1 to be wrapped, with its tail end held on the mandrel segment by the paper end pressing device 36, The work process of laying the wrapping paper 10 in the inner peripheral hole 1a of the coil 1 to be wrapped by sequentially expanding the mandrel segment 34 and the short-stroke expansion / contraction cylinders 33-1 to 33-8 is shown.

In the case where the dimensional range of the inner diameter of the coil to be wrapped is wide, the outer diameter of the
After adjusting the diameter to about 100 mm smaller than the required inner diameter by the expansion / contraction screw 32 and the driving mechanism shown in the figure, applying the required wrap, and completing the winding, the tail end of the wrapping paper is placed in the paper end pressing device 36.
After inserting into the inner peripheral hole 1a of the coil 1 to be wrapped and expanding the mandrel outer diameter by a required amount by the expansion / contraction screw 32 and its driving mechanism, the short stroke expansion / contraction cylinders 33-1 to 33-8 are used. Are enlarged in the order shown in FIG.

Next, a method for laying inner paper in the present invention will be described.

At the start of the work, the mandrel 30 is shown in FIGS.
In the wrapping paper take-up device shown in the figure, the segment has an outer diameter that is approximately 30 mm smaller than the inner diameter of the coil to be wrapped, with all short strokes contracted. 4 that the wrapping paper supply device 15 in FIG. 4 is at the retracted position (the position indicated by the dashed line), the upper paper presser 20-8 is at the ascending position,
The lifting apron 20-4 is at the lowered position (the same height as the paper receiving surface of the wrapping paper supply device 15), and the clutch 15-3
Is in the cut state, FIG. 8 shows that the sliding member 18-1 for holding the cutter of the wrapping paper cutting device is at the extreme end position in the width direction of the wrapping paper 10, and the coil 1 to be wrapped is in the predetermined position. Wrapping paper roll according to the type of inner diameter of the coil to be wrapped
After confirming that 10a, 10b, 10c, etc. are prepared on the paper supply device, perform the following procedure.

A wrapping paper roll having a width suitable for the inner diameter of the coil to be wrapped 1 is selected from 10a, 10b, and 10c.
2. The head is moved to the fourth position via the guide 14 and the cutter 17.
It is brought to a predetermined position at the entrance of the wrapping paper supply device 15 shown in FIGS.

In accordance with the width of the coil 1 to be wrapped, the required feeding length of the wrapping paper 10 is determined in advance by the pinch roll 13 and the feeding motor 15−.
4, the vacuum pad lifting cylinder 14-6 shown in FIG. 7 is operated to lower the vacuum pad 14-7, and then the vacuum ejector 14
-4 is operated to suck the head of the wrapping paper 10 in the feeding direction at two places at both ends in the width direction, and then the vacuum pad 14-7 is sucked.
To rise.

When the wrapping paper delivery chain drive motor 15-4 and the pinch roll drive motor 13 are simultaneously activated, the wrapping paper is automatically delivered by the length set by the encoder and stopped.

The vacuum pad 14-8 is lowered by the same mechanism as the above 14-7, and a portion near the tail in the feeding direction of the wrapping paper 10 is sucked at two places at both ends in the width direction. The wrapping paper cutting device 17 shown is operated to cut the wrapping paper in the width direction, and the vacuum pad 14-8 is further raised.

With the clutch 15-3 shown in FIG.
Vacuum pad that absorbs the part near the tail of the wrapping paper 10
14-8 can be transported in the feed-out direction by the chain drive motor 15 at the same time as the vacuum pad 14-7 with the head sucked.

Vacuum pad for wrapping paper 10 cut to required length
While being sucked at four locations by 14-7 and 14-8, the chain drive motor 15-4 is slightly moved back and forth in the direction of FIG. 5A to align the mandrel 30 with the center.

The upper paper presser 20-8 shown in FIG. 4 is lowered by operating the elevating cylinder 20-6, and the end of the wrapping paper 10 is sandwiched between the elevating apron 20-4.

The traverse cylinder 20-2 of the movable machine frame 20-1 is operated to move the traverse cylinder 20-2 from the position indicated by the dashed line to the position indicated by the solid line in FIG. This corresponds to 1 in FIG. The moving direction in this case is the direction B in FIG.

Put the end of the wrapping paper 10 on the upper paper holder 20-8 and the lifting apron 20.
-4, the lifting cylinders 20-5 and 20-6 shown in FIG.
Is lifted to a position where one end of the end comes in contact with the vacuum pad 35 provided on the segment 34 of the mandrel 30. This corresponds to 2 in FIG.

By operating a vacuum ejector (not shown), the end of the wrapping paper 10 is sucked by the vacuum pad 35 (a plurality of vacuum pads are provided on the mandrel segment on a straight line in the mandrel axis direction).

Raise the upper paper retainer 20-8 slightly and set the mandrel 30
15 is rotated as shown in FIG. 15 and stopped at about 60 °, and the fluid pressure cylinder 36 shown in FIGS. 13 and 14 is rotated.
-1 to operate the sliding guide 36-4, linear guide 36
The paper edge presser 36 is advanced along the segment of the mandrel 30 via -5.

While pressing the wrapping paper 10 onto the segment 34 of the mandrel 30 with an appropriate strength using the paper edge pressing device 36, the wrapping paper 10 is
Give the required wrap according to the procedure of Figs.
Rewind to 30. After winding, the lifting apron 20-4 is slightly lowered by operating the lifting cylinder 20-5.

With the mandrel driving mechanism shown in FIG. 12, the mandrel is aligned with the inner peripheral hole 1a of the coil 1 to be wrapped, the wrapping paper is wound, and the paper end is pressed by the pressing device 36. Then, the mandrel outer diameter is enlarged as required to the required size through the mandrel segment expanding / contracting screw 32 and its drive mechanism 31 shown in FIG.

This operation is unnecessary when the inner diameter of the coil to be wrapped is the minimum diameter.

 This state corresponds to 1 in FIG.

The paper end presser 36 is retracted, and 2, 3, 4,... In FIG.
The short stroke cylinder of the individual segment is operated in the order of 9 to wrap the wrapping paper 10 in the inner peripheral hole of the coil 1 to be wrapped.
Laying in 1a. At step 7, the operation of the vacuum pad 35 is stopped.

By giving the length of the wrapping portion of the wrapping paper appropriately and performing the diameter expanding operation in the order shown in FIG. 16 from the position 2 in FIG. , At the same position as the tape application device,
By operating the tape applying device shown in the figure, the tape is applied in the axial direction of the coil to be wrapped along the wrap portion of the inner peripheral paper, and the mounting operation of the inner peripheral paper is completed.

〔The invention's effect〕

According to the present invention, the adhesiveness of the wrapping paper to the inner peripheral hole 1a of the wrapped coil 1 is excellent, and it is possible to easily cope with a change in the inner diameter and width of the wrapped coil.

There is cushioning material on the surface of the mandrel segment,
In addition, since the segments divided in the inner circumferential direction can be individually expanded and contracted by the short stroke device, even if the inner diameter of the coil to be wrapped fluctuates, the wrapping paper is extremely easily adhered along the inner circumferential hole. .

The operation is simple and the maintenance cost is low because it mainly has a structure in which a normal expansion / contraction mechanism is provided with a short stroke expansion / contraction mechanism that can be operated independently.

Further, since the inner diameter of the coil to be wrapped corresponds to the width of the wrapping paper roll and a mechanism for feeding out the wrapping paper by the width of the wrapped coil is combined, the adaptability to the fluctuation of the inner diameter and the width of the wrapped coil is large. Further, the functional stability of the device is high, the automation is easy, and the industrial effect is great.

[Brief description of the drawings]

1 is an overall perspective view of the present invention, FIG. 2 is an overall plan view, FIG. 3 is an overall side view, FIG. 4 is a sectional view taken along line AA of FIG.
FIG. 6 is an explanatory view of the operation of the wrapping paper supply apparatus, FIG. 6 is an explanatory view of the wrapping paper suction apparatus, FIGS. 7-1 and 7-2 are partially enlarged views of FIG. 6, and FIG. FIG. 9 is a sectional view taken along the line BB of FIG. 8, FIG. 10 is a sectional view in the axial direction of the mandrel, FIG. 11-1 is an enlarged view of the mandrel short stroke, and FIG. 11-2 is a reduced mandrel short stroke. FIG. 12 is a front view of the mandrel elevating device, FIG. 12 is a side view of FIG. 12, FIG. 13 is a front view of the paper edge pressing device, FIG. FIG. 2 is a side view of FIG. 13-1, FIG. 14 is an explanatory view of the operation of the paper edge pressing device, and FIG.
2 is a side view of FIG. 14-1; FIG. 15 (1-6) is an explanatory view of a wrapping paper winding operation by a mandrel according to the present invention;
FIG. 16 (1-9) is an explanatory view of the work of laying the wrapping paper on the inner peripheral surface of the coil in the present invention. 1: coil to be wrapped, 10: wrapping paper roll 14: vacuum pad, 20: movable machine frame 30: mandrel 30-7: mandrel lifting frame 36: paper end holding device, 40: bonding device 40-1: slit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tetsuo Tanabe 1 Kimitsu, Kimitsu City, Chiba Prefecture Inside the Kimitsu Works of Nippon Steel Corporation (56) References JP-A-59-134125 (JP, A) JP-A Sho 60-204415 (JP, A)

Claims (1)

(57) [Claims] 1. A short-stroke expansion / contraction mechanism which has a plurality of segments which can be expanded / contracted in accordance with the inner diameter of a cylinder, and which can be operated independently of each segment, and covers each segment surface with a cushioning material. In order to cope with a change in the inner diameter of the packaging cylinder, a plurality of suction vacuum pads, which can be selected in accordance with the size of the article to be packaged in the mandrel axis direction, are fitted to any one of the segments in accordance with the surface of the segment. At equal intervals to allow the mandrel to be moved into and out of the mandrel support elevating frame along the surface of the mandrel segment when the diameter is expanded by a short stroke, and to hold the tail end of the wrapping paper wound around the mandrel over its entire width. A mandrel segment suitable for the dimensions of the cylinder to be packaged is provided on a mandrel segment provided with a paper end holding device for To have slits, bonding apparatus slidable to the mandrel axis, and out allows cylindrical product packaging inner sheet insertion system, characterized in that provided in the mandrel radially through the slits.