JPH07285516A - Packing device for winding around roll and winding-round method - Google Patents

Abstract

PURPOSE:To perform a wind-around packing by winding a packing sheet around the outer periphery of a roll-formed article without spoiling the quality of the outer peripheral surface of the roll-formed article, and in addition, make the device structure simple and compact. CONSTITUTION:A roll-formed article 1 is supported between a pair of supporting bodies 3 and rotated, and a packing sheet 4 is wound around the roll-formed article 1 to package the roll-formed article 1 by a roll-wind-around packing device. For such a roll-wind-around packing device, the packing sheet 4 is fed on the outer periphery of the roll-formed article 1 which is supported between the supporting bodies 3. Then, the leading end of the packing sheet 4 is pressed on the outer periphery on both ends of the roll-formed article 1 by a pair of claws 16, and the claws 16 are rotated together with the roll-formed article 1 to take up the packing sheet 4, and then, the claws 16 are made to retract from the roll-formed article 1 and removed from the wound layers of the packing sheet 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll-wrapping apparatus and a roll-wrapping method in which a roll-shaped material is supported between a pair of supports and is rotationally driven to wind a packaging sheet around the roll-shaped material for packaging. Regarding

[0002]

2. Description of the Related Art Conventionally, as the above-described roll-wrapping device, as disclosed in, for example, Japanese Unexamined Patent Publication No. 5-294312, a packaging sheet supplied at a winding position is automatically wound around the outer periphery of a roll. For this purpose, the winding tip of the packaging sheet provided with the adhesive tape is supplied onto the outer periphery of the roll-shaped material supported by the supporting arm and pressed, and the adhesive tape is adhered to the outer periphery of the roll-shaped material, and then the roll-shaped material. There are those that are driven to rotate.

Further, as disclosed in, for example, Japanese Utility Model Publication No. 54-16784, an arm provided so as to be able to undulate before and after a pair of drive receiving rollers for rolling and rotating a roll-shaped object, and this arm. A wrapping sheet guide consisting of a belt wound around a drive receiving roller is provided at a body winding position, and a roll-shaped material is rotated on the drive receiving roller, and is wrapped between the belt and the roll-shaped material of the packaging sheet guide. A roll that supplies a sheet and guides the wrapping sheet along the outer periphery of the roll-shaped material with a belt, and wraps the wrapping sheet around the roll-shaped material without applying an adhesive tape or an adhesive to the tip of the wrapping sheet. There is also a body wrapping device.

[0004]

However, when the method of adhering the wrapping sheet around the outer periphery of the roll-like material with the adhesive tape and winding the same as described above, the following problems occur. That is, when the tip of the packaging sheet is adhered to the roll-shaped product, when unwrapping and using the roll-shaped product,
The adhesive tape attached to the roll must be removed. However, in order to bond the tip of the packaging sheet to the outer periphery of the roll-shaped material automatically and reliably, an adhesive tape having a strong adhesive force is used. Therefore, it is necessary to peel off the adhesive tape or cut off a part of the product, which is very troublesome. Moreover, a part of the product is often wasted.
For example, when the roll-shaped material is a winding roll formed by winding a strip-shaped sheet, the portion to which the adhesive tape is applied generally has no product value and is cut off. And the adhesive tape does not always adhere to the end of the strip-shaped sheet of the winding roll,
It may stick to the position where the winding roll is wound around the winding sheet from the front end thereof. At that time, it is necessary to cut out the strip-shaped sheet for about one round of the winding roll. Therefore, the waste of the strip-shaped sheet of the product roll increases. Further, in order to automatically apply the adhesive tape to the leading end of the packaging sheet, a complicated adhesive tape supply device is required.

Further, in the roll body winding packaging device in which the above-mentioned packaging sheet guide is used to wind the packaging sheet around a roll, the structure of the packaging sheet guide becomes complicated,
It requires a large space for providing it and becomes large in size. Further, since the belt of the packaging sheet guide may directly contact the roll-shaped material before supplying the packaging sheet and may damage the surface of the roll-shaped material, it is not suitable for packaging the roll-shaped material whose surface is easily scratched.

Therefore, according to the present invention, the packaging sheet can be wound around the outer periphery of the roll-shaped material without impairing the quality of the roll-shaped outer peripheral surface, and further, the device structure can be simplified and the device can be downsized. An object is to provide a body winding method.

Further, a roll-wrapping device for carrying out the winding method of the present invention, which has a simple structure and requires a small occupied space, and a simple winding-wrapping device for winding a roll-shaped material having various widths. An object of the present invention is to provide a roll body wrapping device having a structure.

[0008]

In order to achieve the above-mentioned object, a method for winding a body according to the present invention comprises a roll-shaped material supported between a pair of supports and driven to rotate, and a wrapping sheet around the roll-shaped material. In a roll body wrapping device that winds and wraps
A packaging sheet is supplied to the outer periphery of the roll-shaped material supported between the supports, and the tip of the packaging sheet is pressed against the outer periphery of both ends of the roll-shaped material with a pair of claws, and the claws are put together with the roll-shaped material. It is characterized in that after rotating and winding up the packaging sheet, the claws are retracted from the roll-shaped material and extracted from the winding layer of the packaging sheet.

The roll-wrapping wrapping device of the present invention is a roll-wrapping wrapping device for supporting a roll-shaped material between a pair of supports and rotationally driving it to wind a wrapping sheet around the roll-shaped material for wrapping. A roll-shaped object fixture rotatably provided on the support, a claw for pressing the leading end of the packaging sheet to the outer circumferences of both ends of the roll-shaped object attached to the roll-shaped object fixture, and the roll-shaped object mount It is provided between the roll-shaped object held by the roll-shaped object fixture and the support so as to rotate together with the tool, and holds the claw movably in the width direction of the roll-shaped object, and It is characterized in that it is provided with a pawl support mechanism capable of changing a turning radius and an advancing / retreating drive mechanism for advancing / retreating the pawl in the width direction of the roll-shaped material.

In order to support the rolls having different widths, it is preferable that the pair of supports can be adjusted to have a mutual interval according to the width of the rolls.

The pawl support mechanism has an arm having a holder for holding the pawl, which penetrates the shaft of the roll-shaped object fixture slidably in a diametrical direction, and moves the arm in the longitudinal direction.
It is preferable that the moving drive mechanism is attached to the shaft.

The claw support mechanism includes an arm having a holder for holding the claw, a holding body provided on the roll-shaped object mounting tool for holding the arm slidably in the longitudinal direction, and the arm. It may be provided with a moving drive mechanism provided on the holding body for moving and driving the above in the longitudinal direction.

Further, the claw support mechanism includes an arm provided on the roll-shaped object mounting tool, a holder for holding the claw slidably provided in a longitudinal direction of the arm, and the arm provided on the arm. It may be provided with a movement drive mechanism for driving the holder forward and backward.

[0014]

When the turning radius of the claw is made larger than the outer diameter of the roll-shaped object by the claw support mechanism and the claw is advanced by the advancing / retreating drive device, the tip end of the claw is rolled by the roll-shaped object mounting tool. It becomes possible to engage with the outer circumference of the end of the object. In this state, the packaging sheet is supplied onto the outer circumference of the roll-shaped object held by the roll-shaped object attachment, and the turning radius of the claw is reduced by the claw support mechanism at the position corresponding to the tip of the supplied packaging sheet. Then, the leading edge of the packaging sheet is pressed against and held by the outer periphery of the roll-shaped material by the claw.

Since the claw support mechanism is provided so as to rotate together with the roll-shaped object mounting tool, when the roll-shaped object is rotated, the claw also rotates together with the roll-shaped object while holding the leading end of the packaging sheet, and the packaging sheet is rotated. Is wound around the outer circumference of the roll. Since the claws and the claws are wound with the packaging sheet together with the roll-shaped material, after the winding of the packaging sheet is completed, the claw is retracted by the advancing / retreating drive device and pulled out from the winding layer of the packaging sheet.

[0016]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a schematic side view of an embodiment of the roll-wrapping apparatus of the present invention, in which a part of the apparatus is omitted. In this device, the roll-shaped material 1 is a sheet roll in which a belt-shaped sheet is wound, and the lifting device 2
It is lifted from the position shown by the chain line to the position shown by the solid line, and is supported by the support arm 3 provided at the body winding position. Packaging sheet 4
Is delivered onto the table 6 by the packaging sheet preparation device 5, and is supplied to the body winding position by the packaging sheet transfer mechanism 7 provided above the table 6.

When the width of the roll-shaped material 1 is changed, the packaging sheet preparation device 5 rewinds the strip-shaped sheet from the original roll 8 by a required length and cuts it transversely so that the width of the roll-shaped material 1 becomes almost equal. A packing sheet 4 having the same width is prepared, and an adhesive tape for terminating the packing sheet is used.
Can be added to the terminal end of the. Further, the packaging sheet transfer mechanism 7 includes a suction cup 9 that can move to a position shown by a chain line and a position shown by a solid line, and the suction plate 9 sucks and transfers the packaging sheet 4. The roller 10 is provided for pressing the adhesive tape applied to the end portion of the packaging sheet 4 against the roll-shaped material 1 to ensure the end treatment.

As shown in FIG. 2, the left and right support arms 3 are slidably attached to upper and lower guide shafts 12 fixed horizontally between the outer frames 11. Then, a right screw and a left screw are screwed into a screw shaft 13 formed at both ends, and the screw shaft 13 is normally rotated by a motor (not shown),
By reversing, the distance can be adjusted to an interval according to the width of the roll 1. Further, the bearing portions 14 at the ends of the left and right support arms 3 are provided with roll-shaped object attachments 15 for holding the roll-shaped object 1, and at least one of the roll-shaped object attachments 15 is The roll-shaped material 1 held by the rotation is driven by a rotation driving mechanism (not shown) when the packaging sheet is wound.

The roll-wrapping apparatus of the present invention is provided with a claw 16 for pressing the packaging sheet onto the outer periphery of the end of the roll-shaped product 1 held by the roll-shaped product mounting tool 15. This nail 16
Is supported by a claw support mechanism 17 provided between the roll-shaped material 1 held by the roll-shaped material attachment 15 and the support 3.

As shown in FIG. 3, the roll-shaped object attachment 15
Is a head portion 19 that holds the roll-shaped material 1 by engaging holes at both ends of the winding core 18 at the center of the roll-shaped material 1,
Is attached to the tip of the shaft 20. The shaft 20 is rotatably supported by the bearing portion 14.

The claw support mechanism 17 is provided with a roll-shaped object mounting tool 15.
The pair of arms 21 slidably fitted in the holes 20a provided in the diametrical direction of the shaft 20, the holder 22 fixed to the tip end of the arms 21, and the holder 22 approaching the shaft 20.
A fluid pressure cylinder 23 that pushes and pulls apart is provided. The cylinder body 24 of the fluid pressure cylinder 23 has one end fixed to the shaft 20. And piston rod 2
Reference numeral 5 penetrates the shaft 20 so as to be parallel to the arm 21, and its tip is joined to the holder 22. The holder 22 holds the claw 16 by slidably fitting the claw 16 into a hole 26 parallel to the shaft 20. Further, a fluid pressure cylinder 27 for advancing / retreating the claw 16 in the width direction of the roll 1 is attached to the holder 22.
The claw 16 shown by the chain line in FIG. 3 is in a state of being advanced from the holder 22.

Fluid pressure cylinder 23 and fluid pressure cylinder 2
7, the pressure fluid can be supplied through a rotary joint 28 provided at the end of the shaft 20 extending outside the support arm 3 and through individual passages and hoses (not shown) provided inside the shaft 20. .

Therefore, the pawl support mechanism 17 pushes and pulls the holder 21 by means of the fluid pressure cylinder 23, and the shaft 2
By changing the extension length of the arm 21 from 0, the nail 16
You can change the turning radius of.

Next, the operation of the apparatus of this embodiment will be described.

As shown by the chain line in FIG. 3, the pawl support mechanism 17
The fluid pressure cylinder 23 drives the holder 22 to slide the arm 21 to position the pawl 16 on a rotation radius larger than the radius of the roll-shaped object 1 to be wound around the body, and the fluid pressure cylinder 27 advances the pawl 16 from the holder 22. Let Then, the screw shaft 13 shown in FIG. 2 is rotated to separate the pair of support arms 3 from each other so that the distance between the left and right heads 19 is larger than the width of the roll-shaped object 1 and shown in FIG. The roll-shaped object 1 is lifted by the lifting device 2 and placed at the mounting position, and the interval between the pair of support arms 3 is narrowed to make the head 1
The roll-shaped product 1 is mounted on the support arm 3 by inserting 9 into the hole at the end of the winding core 18 of the roll-shaped product 1. According to this embodiment, since the roll-shaped material 1 is conveyed in the longitudinal center axis direction and placed on the elevating device 2, the shaft 20 is rotated when the roll-shaped material 1 is carried in and out of the elevating device 2. As shown in FIG. 1, the claw support mechanism 17 is temporarily retracted so as not to interfere with the loading of the roll-shaped material 1.

When the roll-like object 1 is mounted on the support arm 3,
The suction cup 9 is moved to the position shown in FIG. 4, and the leading end of the packaging sheet 4 is supplied to the outer periphery of the roll-shaped material 1. After that, when the holder 22 is retracted toward the shaft 20 by the fluid pressure cylinder 23, the claw 16 presses and holds the leading end of the packaging sheet 4 against the outer periphery of the end of the roll-shaped material 1.

Next, after the suction of the packaging sheet 4 by the suction cup 9 is stopped and the suction cup 9 is retracted, the shaft 20 is rotationally driven in the direction of the arrow shown in FIG. Then, the arm 21, the holder 22, and the fluid pressure cylinder 23 rotate together with the shaft 20, so that the claw 16 and the roll-shaped article 1 attached to the roll-shaped article attachment 15 mount the packaging sheet 4 to the roll-shaped article. The packaging sheet 4 is wound around the outer periphery of the roll 1 while being pressed and held on the outer periphery of the roll 1. When the roll-shaped material 1 makes one rotation or more, the packaging sheet 4
The subsequent portion of the cover covers the tip portion held by the claw 16.

When the end of the packaging sheet 4 approaches the outer periphery of the roll-shaped product 1, the roller 10 is pressed against the roll-shaped product 1,
The adhesive tape applied to the end of the packaging sheet 4 is adhered to prevent the packaging sheet 4 from rewinding, and the packaging sheet 4
When the winding of No. 2 is completed, the rotational drive of the shaft 20 is stopped. At this time, since the pawl 16 is in a state of being inserted under the wrapped packaging sheet 4 as shown in FIG. 6, the pawl 16 is retracted from the fluid pressure cylinder 27 in the direction of the arrow so that the packaging layer of the packaging sheet 4 is wound. Remove from Thereafter, the packaged roll-shaped material 1 is supported by the lifting device 2, and then the support arms 3 are moved away from each other to extract the head portion 19 of the roll-shaped material attachment 15 from the core 18 of the roll-shaped material 1. The roll-shaped material 1 is lowered and carried out.

According to this embodiment, the arm 21 of the pawl support mechanism 17 and the fluid pressure cylinder 23 for moving the pawl 16 are
Since it is directly attached to the shaft 20, the structure is simple and the size can be reduced.

In the pawl support mechanism 17 shown in FIGS. 7 and 8,
The shaft 20 of the roll-shaped object attachment 15 is fixed to the support 3. A holding body 29, which holds the arm 21 slidably in the longitudinal direction, is rotatably attached to the shaft 20 via a bearing 29a, and the head 19 is concentric with the shaft 20 at the end of the holding body 29. It's stuck. A holder 22 for holding the claw 16 is fixed to the tip of the arm 21, and the arm 21 is driven to move back and forth by a fluid pressure cylinder 23 attached to a holder 29 to change the radius of rotation of the claw 16. The claw can be moved back and forth by the forward / backward drive device 23 provided in the device 22. The holding body 29 is provided with a balancing portion 29b for balancing during rotation. Head 19 and holder 29
The rotational driving force is transmitted to the motor through a transmission device 30 that is concentrically provided with the holding body 29 and includes a gear or the like. According to this embodiment, since the arm 21 does not directly penetrate the shaft 20,
Does not have to be rotatably supported on the support 3.

In the pawl support mechanism 17 shown in FIGS. 9 and 10, the holder 22 for holding the pawl 16 is slidably attached to the arm 21 fixed to the shaft 20 of the roll-shaped article attaching device 15. The fluid pressure cylinder 2 provided on the arm 21
3, the holder 22 is moved and driven to change the turning radius of the claw 16, and the forward / backward drive device 23 provided in the holder 22 is also changed.
Thus, the nail 16 can be moved back and forth. The arm 21 is provided with a balance portion 21a for balancing during rotation. The arm 21 is not limited to the elongated arm, and may be a disk-shaped arm provided concentrically with the shaft 20.

The preferred embodiment of the present invention has been described above, but the embodiment can be variously changed. For example, the present invention is not limited to the packaging of the sheet winding roll, and may be applied to the packaging of an object having a similar shape. In addition, the roll-shaped object attaching tool attaches the head to a shaft that is slidable with respect to the support arm, and allows the head to be engaged with and disengaged from the roll-shaped object by sliding the shaft regardless of the movement of the support arm. Alternatively, a known pressure fluid chuck or mechanical chuck may be used.

As long as the nail can hold the packaging sheet, can be easily removed from the winding layer of the packaging sheet, and the gap between the winding layers of the packaging sheet after the nail is removed does not become excessive, It does not matter in shape or material.

In the claw support mechanism, an arm for supporting the holder or a holder for supporting the arm may be provided on the head of the roll-shaped article mounting tool. Further, as a drive device for the arm or holder for changing the turning radius of the claw, it is composed of a screw shaft that is rotationally driven in both forward and reverse directions by a motor, and a female screw provided on the claw holder that is screwed onto this screw shaft. Other known drive devices such as the above may be applied.

[0036]

According to the roll-wrapping method of the present invention,
Since the roll-shaped material is rotated to wind the packaging sheet while the tip of the packaging sheet is pressed and held by the pair of claws to the outer periphery of both ends of the rolled material, it is necessary to use an adhesive tape or the like to wind the packaging sheet. Absent. Therefore,
There is no problem with the conventional means for adhering the tip of the packaging sheet such as an adhesive tape. Further, since the claws do not directly contact the outer circumference of the roll-shaped material, there is no fear of damaging the outer circumference of the roll-shaped material.

Further, according to the roll-wrapping apparatus of the present invention, the claw for pressing the leading end of the packaging sheet against the outer periphery of the end of the roll-shaped product is provided between the roll-shaped product and the support held by the roll-shaped product mounting tool. Since it is held by the claw support mechanism provided in the above, it is possible to provide a roll wrapping machine having a simple and small structure.

Further, even if the distance between the supports for supporting both ends of the roll-shaped material changes depending on the width of the roll-shaped material, the positional relationship between the roll-shaped material and the claws held by the roll-shaped material mounting tool does not change. If the roll-shaped object is attached to the body to hold the roll-shaped object, the claws can be engaged with the outer circumference of the end of the roll-shaped object regardless of the width of the roll-shaped object, and the tip of the packaging sheet can be attached. It becomes possible to reliably press and hold the roll-shaped material on the outer periphery thereof. Therefore, it is possible to provide a roll-wrapping device having a simple structure, which is used for packaging a roll-shaped material having various widths.

[Brief description of drawings]

FIG. 1 is a schematic side view of an embodiment of a roll body wrapping device of the present invention.

FIG. 2 is a schematic plan view showing a body winding position of the roll body winding packaging device shown in FIG.

FIG. 3 is a front view of a claw support mechanism of the roll body winding packaging device shown in FIG.

4 is a side view of the claw support mechanism shown in FIG.

FIG. 5 is a perspective view showing a state in which a packaging sheet is wound around the outer periphery of a roll-shaped material.

FIG. 6 is a perspective view showing a state in which the winding of the packaging sheet is completed.

FIG. 7 is a front view showing a second embodiment of the pawl support mechanism.

FIG. 8 is a side view showing a second embodiment of the pawl support mechanism.

FIG. 9 is a front view showing a third embodiment of the claw support mechanism.

FIG. 10 is a side view showing a third embodiment of the pawl support mechanism.

[Explanation of symbols]

 1 Rolled Material 3 Support Arm 4 Packaging Sheet 5 Packaging Sheet Preparation Device 7 Packaging Sheet Transfer Mechanism 9 Sucker 12 Shaft 13 Screw Shaft 15 Rolled Material Attachment Tool 16 Claw 17 Claw Support Mechanism 19 Head 20 Shaft 21 Arm 22 Holder 23 Move Drive mechanism (fluid pressure cylinder) 27 Forward / backward drive mechanism (fluid pressure cylinder) 29 Holder

Claims (6)

[Claims] 1. A roll-wrapping apparatus for supporting a roll-shaped material between a pair of supports and rotationally driving the package to wind the packaging sheet around the roll-shaped material and supporting the roll-shaped material between the supports. Supply the packaging sheet to the outer circumference of the roll,
The tip of the wrapping sheet is pressed against the outer circumference of both ends of the roll-shaped product with a pair of claws, the claws are rotated together with the roll-shaped product to wind up the packaging sheet, and then the claws are retracted from the roll-shaped product. A method for wrapping a body in which the packaging sheet is pulled out from the winding layers. 2. A roll-wrapping device for supporting a roll-shaped material between a pair of supports and rotatably driving the roll-shaped material to wind a packaging sheet around the roll-shaped material so as to be rotatable on the support. A roll-shaped object fixture provided, a claw for pressing the leading end of the packaging sheet to the outer periphery of both ends of the roll-shaped object attached to the roll-shaped object fixture, and to rotate together with the roll-shaped object fixture, It is provided between the roll-shaped object held by the roll-shaped object attachment and the support, holds the claw so as to be movable in the width direction of the roll-shaped object, and can change the turning radius of the claw. A roll bobbin packaging device comprising a claw support mechanism and an advancing / retreating drive mechanism for advancing / retreating the claw in the width direction of the roll-shaped material. 3. The roll-wrapping device according to claim 2, wherein the pair of supports can adjust a mutual interval according to a width of the roll-shaped material. 4. The claw support mechanism includes an arm having a holder for holding the claw, which penetrates a shaft of a roll-shaped object fixture in a diametrically slidable manner, and the shaft for moving the arm in a longitudinal direction. The roll-wrapping wrapping device according to claim 2 or 3, further comprising a movement drive mechanism attached to the wrapping device. 5. The claw support mechanism is provided on an arm having a holder for holding the claw and the roll-shaped object mounting tool.
A holder for holding the arm slidably in the longitudinal direction,
The roll bobbin packaging device according to claim 2 or 3, further comprising: a movement drive mechanism provided on the holder to move the arm in the longitudinal direction. 6. The claw support mechanism includes an arm provided on the roll-shaped object mounting tool, a holder for holding the claw slidably provided in a longitudinal direction of the arm, and provided on the arm.
The roll-wrapping wrapping device according to claim 2 or 3, further comprising a movement drive mechanism that drives the holder to move back and forth.