JP6185833B2 - Winding shaft and web processing device - Google Patents

Description

  The present invention relates to a winding shaft and a web processing apparatus.

Conventionally, a web winding device is provided on the downstream side of the printing device, and a printed web is wound around the outer periphery of the winding shaft of the winding device. A predetermined interval is provided between the printing unit outlet of the printing apparatus and the winding shaft, for example, for drying ink after printing. Prior to the start of printing, the front end of the printing web is fixed to the take-up shaft, and tension is applied to the printing web to prevent misalignment of the printing web. Therefore, the printing web disposed between the exit of the printing unit and the winding shaft is wound around the winding shaft without being printed, and the printing web is wasted.
On the other hand, in order not to waste the printing web, it is possible to reach the winding shaft by printing from the front side of the printing web instead of attaching the printing web to the winding shaft at the start of printing. An operator may perform an operation of joining the leading end portion of the web and the winding shaft after the printed web is sent out to a long length. However, until it can be attached to the take-up shaft, the operator must be monitoring by the printing device and is not efficient. In addition, the worker may temporarily return from the side of the printing apparatus after a predetermined time, and perform the work of joining the tip of the printing web and the winding shaft. Then, the printing web is grounded to the floor or the like due to excessive feeding, and there is a possibility that foreign matters such as dust adhere.
Also, in order to complement the guide path from the feeding shaft to the take-up shaft, a guide web is attached to the tip of the printing web with adhesive tape in advance, and printing is performed from the tip of the printing web. Therefore, the printing web can be used without waste. However, it is necessary to attach a guiding web before starting printing, and it is necessary to prepare a guiding web having a length longer than the distance from the feeding shaft to the winding shaft. This requires labor and time for installing the guiding web, and extra costs for preparing the guiding web.

  In order to eliminate the waste of the printing web for such problems, for example, Patent Document 1 proposes a winding guide including a strip-shaped guide and two magnets attached to the tip thereof. .

JP 2008-63139 A

  However, in the winding guide described in Patent Document 1, a strip-shaped guide, a magnet, or the like is wound around the outer peripheral surface of the winding mandrel, and a printed web is further wound thereon. As a result, there is a problem that the printed web is scratched or wrinkled. Such a problem can occur when the winding guide described in Patent Document 1 is used, not only in a printing apparatus, but also when processing such as printing or adhesive coating is performed on the web.

  An object of the present invention is to provide a winding shaft and a web processing apparatus that can eliminate the waste of the web and suppress the occurrence of scratches, wrinkles and the like on the processed web.

The winding shaft according to one aspect of the present invention is
A winding shaft for winding a long web,
An axial core having a recess in a part of the outer peripheral surface;
One end part is attached to the shaft core, and a lead material having a through hole in part,
A connecting member that is provided at the other end of the lead material and connects the lead material and the web;
When winding the lead material and the web joined by the connecting member with the shaft core, the through hole overlaps with the recess, and the connecting member passes through the through hole overlapped with the recess. It is housed in the recess.

A web processing apparatus according to an aspect of the present invention includes:
It has the winding shaft which concerns on 1 aspect of the above-mentioned this invention, It is characterized by the above-mentioned.

According to the winding shaft according to one aspect of the present invention described above, the leading end of the web and the shaft core can be connected to each other by the lead member and the connecting member provided at the other end of the lead member. Therefore, when the long web is subjected to processing such as printing, waste of the web disposed between the processing portion and the winding portion can be eliminated.
Furthermore, according to the winding shaft according to one aspect of the present invention, when the web is wound, the through hole of the lead material wound around the shaft core overlaps the concave portion of the shaft core. Further, when the web is wound up, the connecting member is accommodated in the recessed portion through the through hole overlapped with the recessed portion, and the connecting member does not protrude from the outer peripheral surface of the shaft core. Therefore, even if a processed web is wound around the lead material after winding the lead material, scratches, wrinkles and the like are less likely to occur on the web.
According to the above-described web processing apparatus according to one aspect of the present invention, since the web is wound using the winding shaft according to the one aspect of the present invention described above, a waste of unprocessed web is generated. Can be eliminated, and the occurrence of scratches and wrinkles can be prevented when winding the processed web.

1 is a perspective view of a printing apparatus to which a winding shaft according to an embodiment of the present invention is attached. It is a top view of the winding shaft which concerns on embodiment of this invention. It is sectional drawing of the winding shaft which concerns on embodiment of this invention. It is sectional drawing at the time of winding up using the winding axis | shaft which concerns on embodiment of this invention. It is sectional drawing at the time of winding up using the winding shaft which concerns on embodiment different from the said embodiment.

[First embodiment]
Hereinafter, the present invention will be described with reference to embodiments. The present invention is not limited to the contents of the embodiment.
In the first embodiment, a mode in which a winding shaft is attached to a printing apparatus which is an example of a web processing apparatus and the web is wound will be described as an example.

(Printer)
FIG. 1 shows a perspective view of a printing apparatus 1 to which a winding shaft 3 according to the first embodiment is attached.
The printing apparatus 1 can perform continuous printing on the long web W. The printing apparatus 1 includes a winding device 2, and the winding device 2 includes a winding shaft 3 and a drive unit 4. The winding device 2 can rotationally drive the winding shaft 3 by the drive unit 4.
Examples of the material of the web W include resin film, fine paper, impregnated paper, glassine paper, coated paper, release paper, non-woven fabric, metal foil, and the like, and further examples include adhesive paper and adhesive film. it can. Examples of the resin film include those formed of acrylic resin, polycarbonate resin, polyethylene resin, polypropylene resin, polyimide resin, epoxy resin, polyvinyl chloride resin, acrylonitrile / butadiene / styrene resin, and polyester resin.
The width dimension of the web W is not particularly limited. For example, in the present embodiment, the printing apparatus 1 can print on the web W having a width dimension of about 150 mm to 2000 mm.

(Winding shaft)
FIG. 2 shows a plan view of the winding shaft 3. FIG. 3 shows a cross-sectional view of the winding shaft 3, and specifically shows a cross-section taken along the line III-III in FIG.
The winding shaft 3 includes a shaft core 11, a lead material 12, and a connecting member 13.

The shaft core 11 is formed so that both sides are fixedly or detachably attached to and supported by the drive unit 4 of the winding device 2.
A recess 110 is formed in a part of the outer peripheral surface of the shaft core 11. In this embodiment, the recess 110 is a through-hole penetrating from the outer peripheral side of the shaft core 11 to the inside (see FIG. 3).
The shape or the like of the recess 110 is not particularly limited as long as the recess 110 has a recess and a size that can be accommodated by the connecting member 13.
Examples of the material of the shaft core 11 include metals, synthetic resins, and carbon fibers. Examples of the metal include iron, stainless steel, and copper. Examples of the synthetic resin include acrylic resin, polycarbonate resin, polyethylene resin, polypropylene resin, polyvinyl chloride resin, acrylonitrile / butadiene / styrene resin, polyester resin, phenol resin, and fiber reinforced plastic (FRP).
The shaft core 11 may be formed in a cylindrical shape with the above-described uniform material, but may be a mixture of a plurality of materials or a laminate. Further, the shaft core 11 is formed with a shaft core body 11A so as to have a constant thickness having a hollow inside, and the hollow center portion has a central shaft 11B along the axial direction of the shaft core 11. It may be formed.
Further, a resin coating may be applied to the surface of the shaft core 11 in order to impart antistatic property or easy slipperiness.
The outer diameter of the shaft core 11 is not particularly limited as long as it can be adapted to a processing machine such as a printing apparatus, such as 3 inches, 6 inches, 8 inches, and 10 inches.
When the shaft core 11 has a hollow inside, the thickness of the shaft core body 11A is preferably 5 mm or more and 30 mm or less, and more preferably 10 mm or more and 20 mm or less. When the thickness of the shaft main body 11A is less than 5 mm, the strength against flatness and deflection may be insufficient, and a printed web (hereinafter sometimes referred to as a product web) is elongated on the outer periphery of the winding shaft 3. When winding up, the winding shaft 3 may be crushed. If the thickness of the shaft main body 11A exceeds 30 mm, the weight of the winding shaft 3 increases, so that the burden on the operator increases and the work efficiency deteriorates, and the material cost increases and becomes uneconomical. .

In the present embodiment, an opening 111 is formed at a position that is a part of the outer peripheral surface of the shaft core 11 and different from the recess 110, and one end portion of the lead material 12 is drawn into the shaft core 11. Yes.
Further, in the present embodiment, a holding member 112 for holding one end portion of the lead material 12 is provided inside the thick wall of the shaft core body 11 </ b> A along the axial direction of the shaft core 11. As shown in FIG. 3, the holding member 112 is formed in a substantially semicircular cylindrical shape, and an opening 113 is formed on a part of the outer peripheral surface. The holding member 112 is provided inside the shaft core 11 so that the opening 113 and the opening 111 of the shaft 11 overlap. Therefore, the lead material 12 can be drawn from the outside of the shaft core 11 to the inside of the holding member 112 through the opening 111 and the opening 113.
Inside the holding member 112, a plate-like core material 114 to which one end of the lead material 12 is attached is disposed. In the present embodiment, one end portion of the lead material 12 is wound around the core material 114 over the entire width thereof. The core material 114 is slidable along the longitudinal direction inside the holding member 112. Therefore, the lead material 12 is slidably attached to the shaft core 11 along the opening 111.
The core material 114 is not limited to a plate shape, and may be a size that does not protrude from the opening 113, such as a columnar shape or a quadrangular prism shape. Examples of the material of the core material 114 include the same materials as those exemplified as the material of the shaft core 11, and may be formed of wood or the like.
As the material of the holding member 112, those exemplified as the material of the shaft core 11 can be cited similarly.

The lead material 12 is a sheet-like member in the present embodiment. One end portion of the lead material 12 is attached to the shaft core 11, and a connecting member 13 is provided at the other end portion. Although the shape of the lead material 12 is not particularly limited, in the present embodiment, the lead material 12 is formed in a shape in which the width dimension decreases from one end side attached to the shaft core 11 toward the other end side. Yes. With such a shape, it is easy to wind the lead material 12 around the shaft core 11. In this embodiment, as shown in FIG. 2, the lead material 12 is a substantially trapezoidal sheet.
The lead material 12 has a through hole 121. The through-holes 121 are formed at a plurality of locations at predetermined intervals in the direction connecting the one end portion to the other end portion of the lead material 12. As described above, the lead material 12 is wound around the outer peripheral surface of the shaft core 11 as the winding shaft 3 rotates. At this time, the through hole 121 is formed so that the concave portion 110 of the shaft core 11 is not blocked by the lead material 12. The through hole 121 is formed so as to overlap the position of the recess 110 when the lead material 12 is wound up. In the case where the lead material 12 is wound around the outer peripheral surface of the shaft core 11 by a plurality of turns before the web W is wound up, a number of through holes 121 corresponding to the plurality of turns are formed. For example, when the lead material 12 is wound twice around the position of the recess 110, two through holes 121 are formed, and all of the through holes 121 overlap the recess 110.
Examples of the material of the lead material 12 include a resin film, fine paper, impregnated paper, glassine paper, coated paper, non-woven fabric, metal foil, and cloth (for example, woven fabric and tarpaulin). The resin film is made of, for example, acrylic resin, polycarbonate resin, polyethylene resin, polypropylene resin, polyimide resin, epoxy resin, polyvinyl chloride resin, acrylonitrile / butadiene / styrene resin, polyester resin, phenol resin, fiber reinforced plastic (FRP). The thing which was done is mentioned.
The thickness dimension of the lead material 12 is preferably 3 μm or more and 20 mm or less, and more preferably 10 μm or more and 10 mm or less. If the thickness dimension of the lead material 12 is less than 3 μm, the tensile strength is insufficient, and there is a possibility that the lead material 12 may break due to the tension when winding the product web. If the thickness of the lead material 12 exceeds 20 mm, the lead material 12 becomes stiff and hard, so the flexibility is inferior. Not only does this increase the outer diameter, but depending on the structure of the processing machine, the number of wound product webs is limited, and the weight of the wound product including the winding shaft 3 increases. There is a fear.

The connecting member 13 is a member that is provided at the other end portion of the lead material 12 and connects the other end portion of the lead material 12 and the leading end portion of the web W. In the present embodiment, four connecting members 13 are provided at substantially equal intervals. The number of connecting members 13 is not limited to four, but is preferably 1 or more and 7 or less, and more preferably 2 or more and 5 or less. When the lead material 12 is joined to the web W, it is necessary to join the lead material 12 in a tensioned state so that there is no slack. If there is slack, when the lead material 12 is wound around the shaft core 11, a wrinkle is formed, and when the product web is wound around the outer periphery, the product web is wrinkled or a mark remains and the quality and appearance are left. May cause problems. When connecting to the web W, it is necessary to make the tension of the lead material 12 substantially the same at the location where the connecting members 13 are connected. However, if the number of the connecting members 13 exceeds seven, the tension is the same. It becomes difficult to do so.
The connecting member 13 is preferably a member that can be attached to and detached from the web W. Although it does not specifically limit as a kind of connecting member 13, In this embodiment, the suspender clip is used as the connecting member 13, and the front-end | tip part of the web W is inserted | pinched and it connects with the lead material 12. FIG.

FIG. 4 is a cross-sectional view showing a state where the lead material 12 is wound around the shaft core 11. 4 is a cross-sectional view of the winding shaft 3 at the same position as that of the cross section taken along the line III-III in FIG.
When the lead member 12 is wound around the outer peripheral surface of the shaft core 11 by rotating the winding shaft 3 by the drive unit 4 of the winding device 2, the through hole 121 just overlaps the position of the recess 110 as described above. When the winding is further continued, the connecting member 13 is accommodated in the recess 110 through the through hole 121 overlapping the recess 110.
Therefore, in this embodiment, when winding the lead material 12 around the winding shaft 3, the positions and sizes of the recess 110, the through hole 121, and the connecting member 13 are appropriately set so that the connecting member 13 is accommodated in the recess 110. Designed.

(Web winding method)
Next, a method for winding the web W using the winding shaft 3 according to this embodiment will be described.
The winding shaft 3 described above is attached to the winding device 2. The other end portion where the connecting member 13 is provided by pulling out the lead material 12 of the winding shaft 3 is positioned in the vicinity of the printing portion outlet of the printing apparatus 1.
The leading end of the web W is sent out from the printing unit outlet of the printing apparatus 1, and the connecting member 13 is joined to the leading end.
Printing is started by the printing apparatus 1, and the winding shaft 3 of the winding apparatus 2 is rotationally driven while the webs W are sequentially sent out to wind up the lead material 12. At this time, the through hole 121 is wound so as to overlap the concave portion 110 of the shaft core 11 as described above. Further, since the web W is connected to the lead material 12, the web W is guided to the winding shaft 3 by the lead material 12.
When the winding is further continued, as shown in FIG. 4, the connecting member 13 is accommodated in the recess 110 through the through hole 121 overlapping the recess 110.
Thereafter, the printed web W is wound around the shaft core 11 around which the lead material 12 is wound.

  According to the winding shaft 3 according to the present embodiment, the tip of the web W and the shaft core 11 can be joined by the connecting member 13 via the lead material 12. Therefore, when printing is performed on the long web W, waste of the web W disposed between the printing unit of the printing apparatus and the winding shaft 3 can be eliminated.

  Furthermore, according to the winding shaft 3, when the web W is wound around the shaft core 11, the through hole 121 of the lead material 12 overlaps the concave portion 110 of the shaft core 11. Further, when the web W is wound up, the connecting member 13 is accommodated in the recessed portion 110 through the through-hole 121 overlapping the recessed portion 110, and the connecting member 13 does not protrude from the outer peripheral surface of the shaft core 11. Therefore, even if a printed web W is wound around the lead material 12 after the lead material 12 is wound, the web W is less likely to be damaged or wrinkled.

Moreover, it is preferable that the lead | read | reed material 12 is made into the shape where the width dimension decreased toward the other end part side from the one end part side. By doing so, it becomes difficult for the lead material 12 to be turned up at the time of winding, and it becomes easy to wind the lead material 12 uniformly around the shaft core 11.
Moreover, if the width | variety of the other end part side of the lead material 12 is narrow, the number of the connection members 13 provided can be decreased, and the connection operation | work with the web W will also become easy. Furthermore, since the connection strength by the connecting member 13 and the force for pulling the web W during winding are less varied in the width direction of the web W, wrinkles are less likely to occur in the wound web W.

  The lead material 12 is slidably attached to the shaft core 11 by a holding member 112. Therefore, according to the winding shaft 3, the lead member 12 can be appropriately slid according to the width dimension of the web W, and the connecting member 13 can be joined according to the position of the web W discharged from the printing unit outlet. .

According to the printing apparatus 1 according to the above-described embodiment, since the winding shaft 3 is provided, it is possible to eliminate waste that an unprocessed web is generated, and scratches when the web W after printing is wound. It is possible to prevent the occurrence of soot and soot.
Further, the take-up shaft 3 can be attached to the attachment portion of the feed shaft of the apparatus that performs inspection work, cutting, laminating, etc. in the next process after the printing, that is, the feed shaft and the take-up shaft of the next process apparatus. If the specifications of 3 are set in common, the take-up shaft 3 on which the printed web is taken up can be detached from the printing apparatus 1 and can be directly mounted on the feeding section of the next process apparatus. By doing so, the work can be simplified and the core to be mounted on the winding shaft 3 can be made unnecessary, so that the work time for mounting the core can be saved, and the core is It can be said that it is environmentally friendly because it is not necessary.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the following description, the same members, configurations, means and the like as those already described are denoted by the same reference numerals, and description thereof will be simplified or omitted.

FIG. 5 is a cross-sectional view illustrating a state in which the web W is wound using the winding shaft 20 according to the present embodiment.
The winding shaft 20 includes a shaft core 21 in which an outer peripheral member 23 is wound around a shaft core body 21 </ b> A, a lead member 22 having one end attached to the shaft core 21, and a connecting member provided at the other end of the lead member 22. 13.

The shaft core main body 21A does not have the recess 110 and the opening 111 like the shaft core 11 of the first embodiment. An outer peripheral member 23 is wound around the shaft main body 21A, and the outer peripheral member 23 covers the shaft main body 21A in the axial direction except for a part thereof. In a part where the outer peripheral member 23 is not provided, the outer surface of the shaft core main body 21A is exposed, and this part corresponds to the recess 210 that the shaft core 21 has in a part of the outer peripheral surface. In the present embodiment, the holding member 112 is accommodated and fixed in the recess 210.
Examples of the material of the outer peripheral member 23 include those exemplified as the material of the shaft core 11, and examples thereof include foam materials such as foamed styrene and foamed urethane, natural rubber, and synthetic rubber.
The wall thickness of the outer peripheral member 23 is preferably 5 mm to 20 mm, more preferably 8 mm to 17 mm, and even more preferably 10 mm to 15 mm. If the thickness of the outer peripheral member 23 is less than 5 mm, the connecting member 13 may protrude from the recess 210 without sufficient thickness to accommodate the connecting member 13. When the thickness of the outer peripheral member 23 exceeds 20 mm, not only is the material cost increased, which is uneconomical, but also the outer diameter increases, so that the number of product webs to be wound is limited depending on the structure of the processing machine. Or the weight of the wound product including the winding shaft 20 may increase.
The lead material 22 can be made of the same material as the lead material 12 of the first embodiment, and is a sheet-like member. As described in the first embodiment, the lead material 22 has a through-hole 221 so as to overlap the concave portion 210 during winding. One end of the lead material 22 is held by the holding member 112 in the same manner as in the first embodiment. The lead material 22 of the second embodiment is also slidably attached to the shaft core 21 as in the first embodiment.
The connection member 13 is the same as that of the first embodiment, and is accommodated in the recess 210 through the through hole 221 when the lead material 22 is wound.

  According to the winding shaft 20 according to the second embodiment, the same effects as those of the winding shaft 3 according to the first embodiment are obtained. Further, according to the winding shaft 20, the concave portion 110 and the opening 111 may not be formed in the shaft core main body 21A, and the holding member 112 may not be accommodated in the shaft core main body 21A. Can be simplified, and can be retrofitted to an existing winding shaft.

[Modification]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

In the above-described embodiment, a mode in which the winding shaft is attached to the printing apparatus and the web is wound up has been described as an example. However, the apparatus to which the winding shaft of the present invention can be attached is not limited to the printing apparatus. For example, the winding shaft of the present invention can be applied to a copying machine, a coating machine, a cutting machine, a film making machine, a paper machine, a laminating machine, a UV irradiation machine, a semiconductor manufacturing apparatus (wafer processing apparatus), a labeling apparatus, etc. Can be attached. Examples of the printing apparatus include an ink jet method, a laser method, a thermal transfer method, and a UV method.
Further, the width dimension and the length dimension of the web to be processed are not particularly limited. Unlike a single sheet, a long web is not particularly limited as long as it is continuously fed to a processing apparatus and processed. For example, a web wound in a roll shape. Etc.

In the embodiment described above, the lead material 12 is slidably attached to the shaft core 11 and the shaft core body 21A. However, the lead material 12 may not be slidably attached to the shaft core 11 or the shaft core body 21A. Even in the case of sliding, the sliding mechanism is not limited to the mode described in the embodiment.
Further, the lead material 12 is not limited to the mode of being attached to the shaft core 11 or the shaft core body 21A using the holding member 112, and may be directly attached to the shaft core 11 or the shaft core body 21A or using other members. Good.

  In the above embodiment, an example in which a substantially trapezoidal sheet is used as the lead material 12 has been described. However, the present invention is not limited to such a lead material. For example, it may be a polygonal shape such as a triangle, a rectangle, or a pentagon, a shape such as a circle or an ellipse, or an indefinite shape.

  In the said embodiment, although the example using a suspender clip was mentioned and demonstrated as the connection member 13, in this invention, it is not limited to such a connection member. For example, other clips, magnets, adhesive tapes, hook-and-loop fasteners, and the like can be used as the connecting member.

  The present invention can be used as a winding shaft for winding a web, and a web processing apparatus.

  DESCRIPTION OF SYMBOLS 1 ... Printing apparatus (web processing apparatus), 2 ... Winding apparatus, 3 ... Winding shaft, 11 ... Shaft core, 110 ... Recessed part, 12 ... Lead material, 121 ... Through-hole, 13 ... Connecting member, W ... Web.

Claims (2)

A winding shaft for winding a long web,
An axial core having a recess in a part of the outer peripheral surface;
One end part is attached to the shaft core, and a lead material having a through hole in part,
A connecting member that is provided at the other end of the lead material and connects the lead material and the web;
When winding the lead material and the web joined by the connecting member with the shaft core, the through hole overlaps with the recess, and the connecting member passes through the through hole overlapped with the recess. A winding shaft that is housed in the recess.   A web processing apparatus comprising the winding shaft according to claim 1.

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