JPH072219A - Packaging device for columnar body - Google Patents

Abstract

PURPOSE:To provide a device to package only the outer peripheral surface of a columnar body. CONSTITUTION:The packaging device consists of a columnar body feeding device A which aligns and feeds a plurality columnar bodies 1 reversing device B which takes out the foremost aligned columnar bodies and set the columnar bodies under an attitude being suitable for packaging, device C to transfer the columnar bodies supported by the reversing device as they are to a packaging sheet-winding device D, device E to feed a packaging sheet 2 to the columnar bodies which are put on the packaging sheet-winding device, adhesive tape feeding part F which fastens the final end part of the packaging sheet being wound around the columnar bodies, and a device G which takes out the packaged columnar bodies from the packaging sheet-winding device. Then, the packaging sheet-winding device D packages only the outer peripheral surface of columnar bodies 1 by the packaging sheet 2 which is fed by the packaging sheet-feeding device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for wrapping a wrapping sheet around a columnar body.

[0002]

2. Description of the Related Art As a device for packaging a columnar body such as a paper roll, various devices such as Japanese Patent Laid-Open No. 63-248615 have been proposed. Further, these packaging devices are configured to package not only the outer peripheral surface of the columnar body but also both end surfaces.

[0003]

However, in the case of a paper roll or the like, it is often unnecessary to wrap both end faces if only the outer peripheral surface is protected by the wrapping paper. In particular, when the wrapped paper roll is used in an automatic machine, the packaging of the outer peripheral surface alone is easier to peel off.

The present invention has been made from such a viewpoint, and an object thereof is to provide a device for packaging only the outer peripheral surface of a columnar body. In addition, as another object of the present invention,
It is an object of the present invention to provide a device capable of automatically supplying a columnar body to such a packaging device.

[0005]

In order to achieve the above-mentioned object, the apparatus according to claim 1 is a columnar body supply device for supplying a plurality of columnar bodies in an aligned manner, and a head of the aligned columnar bodies. A reversing device that takes out the product and puts it in a posture suitable for packaging, a device that transfers the columnar body supported by the reversing device to the packaging sheet winding device in that posture, and a columnar body placed in the packaging sheet winding device. It comprises a device for supplying a packaging sheet, an adhesive tape supply unit for stopping the end of the packaging sheet wrapped around the columnar body, and a device for taking out the packaged columnar body from the packaging sheet winding device. The apparatus is characterized in that only the outer peripheral surface of the columnar body is wrapped with the packaging sheet sent from the packaging sheet supply device.

In the apparatus according to the second aspect of the present invention, the columnar body feeding device arranges spare columnar bodies side by side so that their central axes coincide with each other, and a lifter that can be raised and lowered, and the columnar body is provided in the reversing device. A supply table for supplying, the lifter has a reversing bar on which a columnar column is placed and which can be raised and lowered, and two bars which support the columnar column on both sides of the reversing bar,
The supply table has a columnar body mounted thereon and has two bars arranged substantially in parallel with the reversing bar, and the bar apart from the reversing bar is a guide bar which can be raised and lowered. It is configured.

[0007]

The operation of the apparatus of claim 1 will be described. The columns are arranged in a line in the column feeder. The reversing device picks up one columnar body at the head of this row and reverses it to a posture convenient for packaging. The transfer device receives the columnar body held by the reversing device and conveys it to the packaging sheet winding device.
Here, the packaging sheet is wrapped around the outer periphery of the columnar body, and the end portion of the packaging sheet is stopped by the adhesive tape supplied from the adhesive tape supply unit, and the packaging is completed. The packed columnar body is taken out and discharged by a take-out device.

The operation of the apparatus of claim 2 is as follows. The lifter of the columnar body supply device is supplied with a predetermined number of columnar bodies one by one, and the columnar bodies are arranged in a direction in which their respective central axes coincide with each other. When the columnar body on the supply table disappears, the lifter rises and at the same time the reversing bar also rises. The columnar body 1 is ejected from the lifter and rolls down to the supply table. At this time, the guide bar 18 on the supply base is also rising,
Prevents columnar bodies from overrun due to rolling momentum. When the columnar body is completely transferred from the lifter to the supply table, the lifter descends, and the reversing bar and the guide bar also descend and return to their original positions.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing the configuration of a columnar body packaging machine. First, the overall work performed by this packaging machine will be described.

Reference numeral A is a columnar body feeding device in which a plurality of columnar bodies 1 each having a short or low-thickness cylinder are aligned and fed so that their central axes coincide with each other to form one long column.
As the columnar body 1, a paper roll having a pattern such as a cigarette wrapping paper printed on one surface is used.

B is a reversing device, which holds the hollow core made of cardboard of the columnar body 1 at the top with a chuck from the inside, and rotates in a posture suitable for packaging, that is, about 90 ° so that the central axis becomes vertical. To do.

Next, the chuck of the transfer device C receives the columnar body 1 gripped by the reversing device B, lifts it slightly and removes it from the chuck of the columnar body supply device A, and moves straight to the right in the figure almost horizontally. And put it on the wrapping sheet winding device D, and lower it and place it on the wrapping sheet winding device D.

E is a packaging sheet supply device having a packaging sheet roll 2 ', which supplies the packaging sheet 2 to the columnar body on the packaging sheet winding device D and wraps the outer periphery thereof over one or more rounds. As will be described later, tension is applied to the packaging sheet to firmly wrap the columnar body, and the rear end portion is stopped by the adhesive tape 3 supplied from the adhesive tape supply device F. The wrapped columnar body 1 is in the state shown in FIG. 4, is lifted up by the take-out device G, is rotated about 45 ° in the horizontal plane, is lowered onto the delivery conveyor H, and is discharged to the outside of the device. It

5 (a) to 5 (c) are views showing the structure of the columnar body supplying apparatus A. As shown in FIG. The columnar body supply device A is roughly divided into a lifter 11 and a supply table 12. The lifter 11 is further provided with three bars 13, 14 and 15 for supporting the columnar body 1, into which a plurality of columnar bodies 1 are sequentially fed and arranged side by side in a direction perpendicular to the paper surface. Of the three bars, the central bar 14 is a reversing bar, which can be moved up and down by a cylinder 16 (FIG. 2), and is normally below the two bars on both sides to stably support the columnar body 1.

The supply table 12 is an inspection table 1 on the left side of the drawing.
7 and two bars 1 between it and the lifter 11 on the right.
8 and 19 are provided. Of these, the bar 18 is a guide bar, which can be raised and lowered by the same means (not shown) as the cylinder 16.

A predetermined number of columnar bodies 1 are supplied onto the lifter 11, and when the columnar bodies 1 on the supply base 12 are exhausted, the lifter 11 rises as shown in FIG. 5 (b). At the same time, the reversing bar 14 is also raised by the cylinder 16 (FIG. 2), and the columnar body 1 is once moved onto the receiving table 20 and then dropped to the supply table 12. At this time, the guide bar 18 on the side of the supply base 12 is also raised to prevent the columnar body 1 from overrunning due to the force of the fall. The column 1 is a lifter 11
When the transfer from the supply to the supply table 12 is completed, the lifter 11 descends and the reversing bar 14 and the guide bar 18 as shown in FIG. 5 (c).
Also descends together and returns to the original position.

The columnar bodies 1 thus prepared in the columnar body supplying device A are taken out one by one at the reversing portion B as described above, and transferred by the transfer device C onto the packaging sheet winding device D. As shown in FIG. 1, the supply table 12 has a pusher 12a. Whenever one columnar body is taken by the reversing device B, the pusher 12a pushes the columnar body row from the rear end so that the leading columnar body is the reversing device. It is arranged to come to a certain position where it is gripped by the B chuck.

6 and 7 are diagrams showing the details of the packaging sheet winding device D, the packaging sheet feeding device E and the adhesive tape feeding device F. These devices D, E and F are frame 2
1 is common.

First, the structure of the packaging sheet winding device D will be described. A substrate 22 is mounted on a receiving roller 22a fixed to the frame 21. A shaft 22b rotatably held by a ball bearing is erected at the center of the substrate 22, and a table 23 is attached thereto. The shaft 22b is fitted into the central hole of the columnar body 1 to position the columnar body 1. A sheet guide 22c is erected on the outer periphery of the substrate 22 so as to surround almost ⅔ thereof, and an auxiliary guide 22d is provided at the center of the opening of the sheet guide 22c.

Reference numeral 24 denotes a wrapping roller which sandwiches the wrapping sheet 2 fed from the wrapping sheet feeding device E with the outer peripheral surface of the columnar body 1 and feeds it along the sheet guide 22c, which is fixed to the frame 21. , Is rotated by the driving means 24a. 25 is a tightening roller that receives the packaging sheet 2 fed by the winding roller 24, clamps it between the outer peripheral surface of the columnar body 1 and firmly tightens it so as not to loosen it, and sends it toward the winding roller 24. Then, like the winding roller, it is fixed to the frame 21 and is rotated by a driving means 25a different from the winding roller driving means 24a. A motor is used for these driving means 24a and 25a.

The leading end of the packaging sheet sent out from the tightening roller 25 is guided by the auxiliary guide 22d and sent to the winding roller 24. An insertion guide 27 is a guide for feeding the packaging sheet 2 between the winding roller 24 and the columnar body 1.

In the above-described structure, the columnar body 1 on the table 23 can be easily fed and tightened with the outer peripheral surface thereof being in pressure contact with both the winding roller 24 and the tightening roller 25. . On the other hand, the diameter of the columnar body 1 is
Since there is a considerable variation, it is necessary to adjust the interval so that the table 23 and the rollers 24 and 25 can be pressed against each other in accordance with the change in the diameter of the columnar body 1.

In such a case, it is usual that the table 23 side is fixed and the winding roller 24 and the tightening roller 25 are moved forward and backward toward the table. However, in that case, firstly, when the winding roller 24 moves, the direction in which the packaging sheet 2 enters also changes, so that the insertion guide 27
Must also be moved. Secondly, the position of the tape application work after winding the packaging sheet also moves. Such a problem occurs.

As a method of solving all of these problems, the table 23 of the present invention is provided with an air cylinder as a table moving means 28 between the table 23 and the frame 21. The substrate 22 includes the winding roller 24 and the tightening roller 2
The receiving roller 22 along the perpendicular bisector connecting the line
a on the table 23 to move the rollers 2
It can be attached to and detached from 4, 25. Sheet guide 22c
Since the auxiliary guide 22d is also integrated with the substrate 22, it can move forward and backward together with the table 23.

Next, the structure of the packaging sheet feeding device E will be described. In FIGS. 6 and 7, 31 is a turntable on which the roll 2'of the packaging sheet is placed. In the embodiment of the present invention, a urethane foam sheet is used as the packaging sheet. Since it has appropriate elasticity, it can be wound tightly and is also suitable as a cushioning material.

The wrapping sheet 2 is unwound from the roll 2 ', sandwiched between the guide roller 33 and the feeding roller 34 via the guide 32, is fed by the rotation of the feeding roller 34, passes through the cutter 35, and is inserted into the insertion guide. After passing through 27, it is wound around the columnar body 1 by the winding roller 24. Reference numeral 35a is a cylinder for driving the cutter, and 36 is a motor for driving the feeding roller 34.

Next, the structure of the adhesive tape feeder F will be described. FIG. 8 is a perspective view of a main part of the adhesive tape feeder F. In FIGS. 6 to 8, reference numeral 41 denotes a feeder main body, in which a roll 3 ′ of an adhesive tape is fitted, and an unillustrated adhesive tape feeding roller and a cutter are incorporated.
Reference numeral 42 denotes a tape receiver, which faces the adhesive surface of the tape, and is therefore treated with Teflon (registered trademark) so that the tape can be easily peeled from the adhesive surface.

Reference numeral 43 denotes a tape holding means, which is provided with a suction pad 43a at the tip thereof and sucks the tape by a vacuum or pressure reducing device (not shown). 44 is a receiving lever and 45 is a sticking lever. These are rotatably supported by a common shaft 46. Reference numeral 49 denotes an air nozzle as a warp correction means, which is for correcting the warp of the adhesive tape by blowing air from the non-adhesive surface side because the adhesive tape sent out tends to warp by making the adhesive surface convex.

FIG. 9 is a perspective view of the receiving lever 44, and the sticking lever 45 has a shape symmetrical with the sticking lever 45. Tip recess 4 of receiving lever 44
4a or the tip concave portion 45a of the sticking lever, the end of the tape holding means 43 on the suction pad side is detachably accommodated.

Reference numerals 47a and 47b are electromagnetic solenoids provided back to back. 47a drives the receiving lever 44 and 47b drives the sticking lever 45. 48 is
A spring for returning both levers 44 and 45.

Returning to FIG. 7, a control box 50 collectively controls the packaging sheet winding device D, the packaging sheet feeding device E and the adhesive tape feeding device F. As a result, a series of operations such as feeding the packaging sheet 2, tightening, and sticking an adhesive tape are automatically performed.

FIGS. 10A and 10B show tape holding means 43.
It is a figure which shows the detailed structure of. The tape holding means 43
The inner cylinder 43c is slidably fitted into the outer cylinder 43b,
A suction pad 43a made of a rubber bushing is attached to the tip of the inner cylinder 43c, and the inner cylinder 43c is urged by a return spring 43d in the direction of being drawn into the outer cylinder. The tip of the inner cylinder 43c is engaged with the receiving lever 44, and when the receiving lever 44 is driven in the X direction by the operation of the electromagnetic solenoid 47a (FIG. 6), the push bolt 44b provided on the receiving lever 44 is provided.
Pushes the back plate 43e of the suction pad to suck the adhesive tape. When the electromagnetic solenoid 47a is cut off, the suction pad 43a
Is returned by the return spring 43d. The inner cylinder 43c
The outer peripheral surface of the outer cylinder 43b has a stepped structure that is slightly larger than the inner diameter of the outer cylinder 43b. The retracting position of the suction pad is determined by contacting the buffer ring 44j having the same inner diameter as that of 43b.

The suction position of the suction pad 43a can be adjusted by the push bolt 44b. Reference numeral 43f is a turning shaft, and the tape holding means 43 is rotated about this shaft from a position shown by a solid line in FIG. 6 to a position shown by 43 'shown by a virtual line. 43g is a guide bar arranged in parallel outside the tape holding means 43,
One end of the suction pad 43a is fixed to the back plate 43e of the suction pad 43a by welding or the like, and the opposite side is supported by a structure slidable in a cylindrical tube 43i attached to the outer cylinder 43b. With this structure, the suction pad 43a can be prevented from rotating, and the suction and sticking postures of the tape can be kept constant. 43h is a moving means of the tape holding means 43, that is, a turning device, which moves from a tape receiving position to a tape adhering position, and an air cylinder is used in this embodiment.

Next, the operation of the packaging sheet winding device D, the packaging sheet feeding device E and the adhesive tape feeding device F will be described. When the columnar body 1 is placed on the table 23 of the packaging sheet winding device D, the table moving means 28 operates to bring the columnar body 1 into contact with both the winding roller 24 and the tightening roller 25. Move 23. Sheet guide 22c
And the auxiliary guide 22d also moves together with the table.

The feeding roller 34 of the packaging sheet feeding device E starts to rotate, the packaging sheet 2 reaches the winding roller 24 through the insertion guide 27, and is inserted between the winding roller 24 and the columnar body 1. . Next, the winding roller 24 and the tightening roller 2
5 starts rotating at the same surface speed, the packaging sheet 2 is sandwiched between the wrapping roller 24 and the outer peripheral surface of the columnar body 1 and fed, and is guided by the sheet guide 22c to wrap the columnar body 1 and tighten it. Reach the attached roller 25. Subsequently, the packaging sheet is sandwiched between the tightening roller 25 and the columnar body 1, and the packaging sheet 2 is sent out as the tightening roller 25 rotates. The packaging sheet 2 is guided by the auxiliary guide 22d and advances toward the winding roller 24.

The feeding roller 34 of the packaging sheet feeding device E
When the tip of the packaging sheet 2 reaches an appropriate position, the feeding is stopped and the cutter 35 cuts the packaging sheet. In this embodiment, since the urethane foam sheet is used as the packaging sheet, the hot wire cutter is used, but of course, a normal blade may be used. The end of the cut packaging sheet on the side of the packaging sheet supply device E is held between the feeding roller 34 and the guide roller 33, and is ready to feed the sheet for the next columnar body. .

Next, the surface speed of the winding roller 24 is set lower than the surface speed of the tightening roller 25, tension is applied to the packaging sheet 2, and the winding is continued. The leading end of the packaging sheet makes one round around the columnar body 1 and returns to the winding roller 24, is sandwiched again between the end of the packaging sheet and the columnar body, and is further rolled up slightly. After that, the end of the packaging sheet is the winding roller 2
When it comes near 4, the rotation of both rollers 24, 25 is stopped.

In this way, the winding roller 24 initially rotates at the same surface speed as the tightening roller 25, and then rotates at a lower surface speed than the tightening roller 25, but it performs such variable speed rotation. Therefore, in the embodiment of the present invention, a configuration is adopted in which both rollers are driven by independent drive means 24a and 25a, respectively. Then, the control box 50 (FIG. 7) determines the shift amount and timing of the tightening roller 25 by using a timer and a sensor (not shown). The speed of the winding roller 24 may be changed. Further, by changing the speed of both rollers, the effect of shortening the winding time can be obtained. The same effect can be achieved even if the winding roller 24 and the tightening roller 25 are connected to each other by a transmission device such as a gear train or a belt.

Next, the supply of the adhesive tape is started. The adhesive tape 3 sent out from the feeder main body 41 has its front end passing in front of the tape receiver 42, and when the predetermined position is reached, the rear end is cut by the cutter in the main body 41.

The cut adhesive tape 3 is a tape receiver 4
Although it is supported by 2 and stands substantially vertically, the electromagnetic solenoid 47a is immediately actuated and the receiving lever 44 moves the tape holding means 43 in the X direction of FIG. 10, and the suction pad 43a at the tip sucks the adhesive tape 3. To do. It should be noted that air is blown to correct the warp of the adhesive tape 3 from when the adhesive tape 3 is delivered from the feeder main body 41 until the adsorption pad 43a adsorbs the adhesive tape 3. The electromagnetic solenoid 47a returns to its original position, the spring 48 also returns the receiving lever 44, and the tape holding means 43 also returns to its original position. At this time, the suction pad 43a still holds the adhesive tape 3.

Next, the turning device 43h provided on the tape holding means 43 is actuated, the tape holding means 43 comes out from the recess 44a at the tip of the receiving lever 44, and the turning shaft 43f.
6 is rotated from the position indicated by the solid line in FIG. 6 to the position indicated by the phantom line, and this time, it engages with the concave portion of the tip portion of the sticking lever 45.

Next, since the electromagnetic solenoid 47b is actuated to move the sticking lever 45 toward the columnar body 1, the adhesive tape held on the suction pad 43a at the tip is inserted into the insertion guide as shown in FIG. It passes through the notch 27 a at the front end of 27 and is attached to the rear end of the packaging sheet 2. When the pressure-sensitive adhesive tape 3 is long, if the columnar body is rotated by either the winding roller 24 or the tightening roller 25, the adhesion of the pressure-sensitive adhesive tape over the entire length becomes easy.

When the outer peripheral surface is wrapped with the wrapping sheet as described above, it is picked up by the take-out device G as described above, and is rotated at 45 °.
It is rotated, lowered onto the payout conveyor H, and discharged.

Since the packaging sheet 2 is wound so as to be tightened by providing a difference in surface speed between the winding roller 24 and the tightening roller 25, and the end portion is adhered by the adhesive tape 3, it is taken out by the take-out device G. Then, the tension applied to the packaging sheet is evenly applied to the entire outer periphery, and the elasticity of the packaging sheet itself tightly wraps the columnar body 1,
It does not fall out. If the packaging sheet is a sponge sheet such as urethane foam, it also serves as a cushioning material, and there is no fear of damaging the surface of the paper roll even when a large number of columnar bodies are arranged and handled.

The present invention is not limited to the above embodiment, and various modifications can be considered. For example, in this embodiment, the receiving lever is sucked by vacuum, but it may be bonded by an adhesive material that is weaker than the adhesive force of the adhesive tape and easily peels off. Further, as a means for correcting the warp of the adhesive tape, a means for mechanically correcting the warp may be provided in the tape holding means. Further, the table 23 in the packaging sheet winding device D may be configured not to rotate.

[0046]

As described above, according to the present invention,
Only the outer circumference of the columnar body can be wrapped. Also, since it has a reversing device, even if there is a difference in the posture of the columnar body at the time of feeding and the posture of the columnar body at the time of packaging,
It can respond freely and can determine the convenient posture for supply regardless of the posture at the time of packaging. Further, with the configuration of claim 2, it becomes possible to automatically supply the columnar body to the packaging device. And other special effects.

[Brief description of drawings]

FIG. 1 is a plan view showing an entire apparatus for winding a packaging sheet around an outer periphery of a columnar body.

2 is an elevational view of the device of FIG. 1. FIG.

3 is a side view of the device of FIG. 1. FIG.

FIG. 4 is a perspective view showing a state in which a packaging sheet is wrapped around a columnar body and is fastened with an adhesive tape.

5 (a) to 5 (c) are views for explaining the configuration and action of the supply device.

6 is a plan view showing the configurations of a packaging sheet winding device, a packaging sheet feeding device, and an adhesive tape feeding device in the device of FIG.

FIG. 7 is an elevational view of FIG.

FIG. 8 is a perspective view showing a main part of the adhesive tape supply device.

FIG. 9 is a perspective view of a receiving lever.

10A and 10B are diagrams showing details of the tape holding means of the adhesive tape supply device, wherein FIG. 10A is a sectional view and FIG. 10B is a top view.

FIG. 11 is a perspective view showing a state in which an adhesive tape is attached to a columnar body.

[Explanation of symbols]

 A columnar body feeding device B reversing device C transfer device D packaging sheet winding device E packaging sheet feeding device F adhesive tape feeding device G ejection device H delivery conveyor 1 columnar body 2 packaging sheet 2 '(packaging sheet) roll 3 adhesive tape 3'roll (of adhesive tape) 11 lifter 12 supply table 13,15 bar 14 reversing bar 18 guide bar 19 bar 21 frame 22c sheet guide 23 table 24 winding roller 25 tightening roller 28 table moving means 42 tape receiving 43 tape holding Means 43h Moving means (turning device) 44 Receiving lever 45 Sticking lever 49 Warp correcting means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideki Odajima 212-1 Kuze Tsukiyama-cho, Minami-ku, Kyoto City Japan Tobacco Inc. Kyoto Printing Factory (72) Inventor Nobuichi Ikeda Habushishi Hishikawa-cho, Fushimi-ku, Kyoto 351 J-Engineering Co., Ltd. Kansai Branch (72) Inventor Toshifumi Fujisawa Fushimi-ku, Kyoto Hazuka Hishikawacho 351 J-T Engineering Co., Ltd. Kansai Branch

Claims (2)

[Claims] 1. A columnar body feeding device for aligning and feeding a plurality of columnar bodies, a reversing device for taking out the head of the aligned columnar bodies and putting it in a posture suitable for packaging, and a reversing device supported by the reversing device. A device for transferring the columnar body to the packaging sheet winding device in the same posture, a device for supplying the packaging sheet to the columnar body placed on the packaging sheet winding device, and an end portion of the packaging sheet wrapped around the columnar body. It consists of an adhesive tape supply unit for stopping and a device for taking out the wrapped columnar body from the packaging sheet winding device. The packaging sheet winding device sends only the outer peripheral surface of the columnar body with the packaging sheet sent from the packaging sheet feeding device. A columnar packaging device characterized by packaging. 2. The columnar body supply device comprises a lifter capable of moving up and down for arranging spare columnar bodies side by side so that their central axes coincide with each other, and a supply base for supplying the columnar body to the reversing device. The lifter has a reversing bar on which columns of columns are placed and which can be raised and lowered, and two bars which support the columns of columns on both sides of the reversing bar, and the supply table mounts the columns of columns. 2. The columnar column according to claim 1, further comprising two bars arranged substantially parallel to the reversing bar, and one of the bars separated from the reversing bar is a vertically movable guide bar. Body packaging equipment.