JPH10181732A - Automatic inserting device of marking piece in defect part of winding sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve quality, productivity, safety, and yield rate of a product, by providing a feeding structure of a marking sheet, which feeds the defect part-marking sheet forming notches at every specified distance by a specified length by a detected defect signal from a detector, to the winding coil side by a specified length. SOLUTION: A marking sheet 4 is fed by a specified length by the action of a marking sheet-feeding structure 10 and the front end 4a of the marking sheet 4 is held in the inside of the side edge of the winding sheet part corresponding to defects such as pinholes of the winding coil 1 and further, the front end 4a of the marking sheet 4 is pulled by the rotation of the winding coil 1 and cut at the nearest notch thereto. The defect-marking piece formed in such a way exists in the state held in the side edge of the winding sheet part corresponding to the defect in the winding coil 1 and it is visible as a defect position of the winding coil 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a strip-shaped sheet fragment used as a mark (mark) for a defective portion such as a pinhole in a rolled sheet, for example, during production of a rolled aluminum foil or the like (hereinafter referred to as a sheet such as a metal foil). The present invention relates to a device for automatically inserting (a defective marking piece) into a side edge portion of a sheet portion corresponding to a defective portion such as a pinhole of a winding coil.

[0002]

2. Description of the Related Art Conventionally, for example, in the production of a polymerized rolled aluminum foil, a strip-shaped label is attached as a marking (mark) to a side edge of an aluminum foil portion corresponding to a defective portion such as a pinhole of a winding coil. Already done. According to one of the conventional methods, as a method for attaching a label, a label having an adhesive applied to a back surface is used.

[0003] However, this method has a drawback that, during the production of aluminum foil, a heat treatment step (annealing step) is performed after winding, so that the pressure-sensitive adhesive sticks to the aluminum foil. There was a problem that it was not possible.

Therefore, in such a case, as another conventional method, a strip-shaped metal foil piece is used without using a label with an adhesive for a defective portion marking piece, and a pinhole of a winding coil of aluminum foil is used. A metal foil fragment for marking was sandwiched between the side edges of the aluminum foil portion corresponding to the equally defective portion.

[0005]

However, in the prior art, the work of sandwiching the marking foil pieces has been performed manually, and for example, the strip-shaped metal foil pieces are brought close to the rotating winding coil and the pressure roll. However, since it was sandwiched by hand, it was not only very dangerous, but also the marking foil piece could not be sandwiched in all of the pinholes and other defects found in the aluminum foil product winding process. Therefore, there is a risk that aluminum foil of inferior quality including defective parts such as pinholes will flow out as a product, and if the winding speed of the aluminum foil is not slowed down, the sandwiching work of the marking foil pieces by hand will be ensured. There is a problem that productivity cannot be improved because it cannot be performed.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to manufacture a strip such as a metal foil including an aluminum foil in conjunction with a defect detection signal of a defect detector such as a pinhole when manufacturing a sheet such as a metal foil. Can be automatically inserted into the side edge of the sheet portion corresponding to the defective portion such as all the pinholes of the winding coil without any manual operation. The quality of the spilled product can be improved by clarifying the quality of the product, and the speed limit is eased by automating the pinching operation of the marking, thereby improving the productivity and preventing the entanglement of hands and arms. It is very safe, and it is possible to reduce the cutting waste of the sheet product and improve the yield by clarifying the location of the marking piece and thus the location of the defect. In an attempt to provide an automatic 挾 inclusive device defect marking pieces.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a wound sheet defect marking used for winding a sheet such as a metal foil on a winding coil while pressing the sheet with a pressure roll. A device for automatically clamping a piece, which detects a defect such as a pinhole in a sheet such as a metal foil at a stage before winding, and operates at a predetermined interval by detecting a defect such as a pinhole from the detector. A marking sheet sending-out mechanism for sending out a predetermined length of a defective portion marking sheet having a cut to the take-up coil side, and the above-described marking is performed when a sheet such as a metal foil is taken up by rotation of the take-up coil. The marking sheet is fed out by a predetermined length by the operation of the sheet feeding mechanism for marking, and the leading end of the marking sheet has a defective portion such as a pinhole of a winding coil. The sheet is sandwiched between the side edges of the take-up sheet portion, and the leading end of the marking sheet is pulled by the rotation of the take-up coil and cut from the nearest cut line, thereby forming a defective portion. The present invention is characterized in that the marking piece is inserted in a side edge portion of the winding sheet portion corresponding to a defective portion such as a pinhole of the winding coil.

[0008] The above-mentioned automatic pinching device of the wound sheet defective portion marking piece usually includes a detector for detecting a defective portion such as a pinhole of a sheet such as a metal foil, and a sending-out mechanism for a marking sheet. A cutter mechanism is provided for cutting the marking sheet at a predetermined length and leaving a connecting portion of a predetermined width from one side edge of the sheet.

However, it is also possible to use a marking sheet provided with cuts at predetermined intervals in advance as the defect marking sheet. In such a case,
There is no need to add a cutter mechanism. in this case,
The cut may be formed on the marking sheet at a predetermined length and leaving a connecting portion of a predetermined width from one side edge of the sheet, or may be other perforations or the like. The leading end of the marking sheet is pinched inside the side edge of the wound sheet portion corresponding to a defective portion such as a pinhole of the winding coil, and the leading end of the marking sheet is pulled by the rotation of the winding coil. By doing
It suffices if the front end of the sheet is cut.

In the above, as a sheet such as a metal foil,
Examples include metal foils such as aluminum foil, copper foil, and iron foil, and stainless steel sheets.

Examples of the defective portion marking pieces include heat-resistant synthetic resin films such as polyimide films, in addition to metal foils such as aluminum foil and copper foil.

The defective portion such as a pinhole of a wound sheet such as a metal foil means a pinhole generated in the sheet,
Defects such as wrinkles and sheet surface flaws are meant.

[0013]

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

The automatic sandwiching device for marking a defective portion of a wound sheet according to the present invention is, for example, a separator between a rolled aluminum foil and a pressure roll (2) as shown in FIG. It is installed and used so as to face.

Referring to FIG. 3, the upper and lower two aluminum foils (3) and (3), which are polymerized and rolled, are vertically separated from a pair of upper and lower guide rolls (31) and nip rolls (32). It is divided into two parts, and is wound on a winding coil (1) through a separate roll (33) and a pressure roll (2) on the upper side. A raion roll (34) is brought into contact with the upper part of the upper winding coil (1). On the other hand, on the lower side, a separate roll (3
It is wound up by a winding coil (1) via 3) and a pressure roll (2). A support roll (35) is in contact with the lower part of the lower winding coil (1).

The pressure roll (2) abutted on the lower part of the upper winding coil (1) forms a support roll (2a), and is abutted on the upper part of the upper winding coil (1). The roll constitutes a laion roll (34). On the other hand, the pressure roll (2) which is brought into contact with the upper part of the lower winding coil (1) forms a raion roll (2b) and is brought into contact with the lower part of the lower winding coil (1). The rolls that are
Configure the support role (35).

Further, pinholes and the like of aluminum foils (3) and (3) before winding are provided between a pair of upper and lower guide rolls (31) and nip rolls (32) and separate rolls (33) and (33), respectively. Detectors (30) (30) for detecting a defective portion are arranged.

In the above separator device for polymerized rolled aluminum foil, the winding device of the present invention is arranged so as to face between the upper winding coil (1) and the pressure roll (2) composed of the support roll (2a). An automatic clamping device for the sheet defect marking pieces is installed. In this device, a pressure roll consisting of a lower winding coil (1) and a laion roll (2b)
The automatic pinching device of the wound sheet defective portion marking piece of the present invention is provided so as to face between (2) and (3).

Referring to FIG. 1 and FIG. 2, an apparatus for automatically clamping a defective mark on a wound sheet according to the present invention comprises:
For example, polymerized rolled aluminum foil (metal foil sheet)
(3) is used to wind up a winding coil (1) while pressing it with a pressure roll (2).

The automatic marking piece clamping device includes a detector (30) for detecting a defective portion such as a pinhole of a sheet (3) such as a metal foil in a stage before winding, and a marking sheet sending mechanism (10). It has.

FIG. 3 shows a detector 30 for detecting a defective portion such as a pinhole. For example, when a rolled aluminum foil (sheet such as a metal foil) (3) is separated, the rolled upper and lower rolled aluminum foils (3) are separated. Since the aluminum foils (3) and (3) are separated into upper and lower arms by a pair of upper and lower guide rolls (31) and nip rolls (32), the pinhole and other defect detectors (30) and (30) use these guides. Rolls (31) and nip rolls (32) are arranged between the next separate rolls (33) and (33).

It should be noted that such a detector (30) may be arranged at any position as long as it can detect a defective portion such as a pinhole of a sheet (3) such as a metal foil before winding. .

In FIGS. 1 and 2, the marking sheet delivery mechanism (10) has a drive mechanism (11) that is activated by a detection signal of a defective portion such as a pinhole from a detector (30) and is provided at predetermined intervals. Sheet for marking defective parts with cuts (6)
(4) is fed out to the winding coil (1) side for a predetermined length, and the leading end (4a) of the marking sheet (4) is wound on the winding coil (1).
To be pinched inside the side edge portion of the wound sheet portion corresponding to a defective portion such as a pinhole.

Further, in the illustrated embodiment, a connecting portion (5) having a predetermined width (W) from a side edge of the sheet (4) and a predetermined width (W) is attached to the marking sheet (4) before sending out. Leaving a cut
Further, a cutter mechanism (20) for inserting the (6) is further provided. The defect marking sheet (4) is in the form of a coil wound around a pivot (28).

Here, the sheet feeding mechanism for marking (1
0) is, for example, a pair of upper and lower endless belts as shown in FIG.
A marking sheet (4) is sandwiched between (12) and (13), and a photoreceptor () provided at the tip of the drive shaft (14a) of the rear sprocket (14) of the lower endless belt (13). A proximity sensor (15) for controlling the sheet sending amount for marking is arranged for (16).

Then, by driving the driving mechanism (11),
The rear upper and lower sprockets (14) and (19) are driven and rotated,
Each time the photoreceptor (16) at the tip end of the sprocket shaft (14a) makes one rotation with this rotation, the proximity sensor (15) detects this and adjusts the operation of the drive mechanism (11) to perform marking. The work sheet (4) is fed out by a predetermined length.

Of the sprockets around which the upper and lower endless belts (12) and (13) are wound, the rear upper and lower sprockets
(14) and (19), these sprocket shafts are meshed with each other by a gear (not shown), and are simultaneously driven to rotate in opposite directions to prevent the marking sheet from slipping, and the remaining front upper and lower sprockets ( 17) and (18) are designed to rotate freely.

Also, a notch is formed on the marking sheet (4).
(6) The cutter mechanism (20) for inserting
(4), a knife (21) arranged at a predetermined position, a lifting cylinder (22) thereof, and a piston rod (2) of the cylinder (22).
Marking sheet holding spring (24) attached to the branch (23a) of (3) and having a holding plate (25) at the lower end
And

The receiving plate (2) is provided below the marking sheet (4) so as to correspond to the notching knife (21).
6) is provided, which is provided with a concave groove (27) for allowing the tip of the knife (21) to escape.

When the piston rod (23) of the cylinder (22) projects downward by the operation of the cylinder (22), the notch knife (21) and the marking sheet pressing spring (24)
And descend together, first presser plate at the lower end of the spring (24)
(25) is applied to the upper surface of the marking sheet (4) and pressed onto the receiving plate (26) to instantly fix the marking sheet (4).

Immediately, as shown in FIG. 4, a connecting portion (5) having a predetermined width (W) is attached to the holding plate (25) by the tip of the knife (21). A cut (6) is made, leaving.

When the notching operation is completed, the operation of the cylinder (22) causes the piston rod (2
3) is lifted and retracted, and the notch knife (21) and the sheet holding spring for marking (24) rise together.

The operation of the cylinder (22) is performed based on a detection signal from the proximity sensor (15) for controlling the delivery amount of the marking sheet, and for each predetermined length of the marking sheet (4). A cut (6) is made so as to leave a connecting portion (5) having a width (W).

In FIG. 1 and FIG.
When winding the metal foil sheet (3) by rotating (1),
The marking sheet (4) is fed out by a predetermined length by the operation of the marking sheet feeding mechanism (10), and the leading end (4a) of the marking sheet (4) is pinhole of the winding coil (1). It is sandwiched inside the side edge of the take-up sheet part corresponding to the equal defect part, and the tip of the marking sheet (4) is pulled by the rotation of the take-up coil (1) and is closest to this Cut from cut (6).

As a result, as shown in FIG. 5, the defective portion marking piece (7) formed on the side of the winding sheet corresponding to the defective portion such as a pinhole of the winding coil (1) as shown in FIG. The position of the defective portion such as a pinhole in the winding coil (1) can be visually confirmed.

In the above, the metal foil sheet (3) wound around the winding coil (1) is an aluminum foil,
Examples thereof include metal foils such as copper foil and iron foil, and stainless steel sheets.

Further, as the defect marking piece (4),
In addition to a metal foil such as an aluminum foil and a copper foil, a heat-resistant synthetic resin film such as a polyimide film may be used.

The defective portion such as a pinhole of the wound sheet (3) such as a metal foil includes a defective portion such as a pinhole, a wrinkle, and a flaw on the surface of the sheet (3).

Here, for example, a marking sheet
When aluminum foil is used as (4), the sheet
(4) The width of about 15 to 50mm, marking sheet
(4) has a thickness of about 10 to 50 μm, preferably 25 to
35 μm.

In the partial cutting of the marking sheet (4) shown in FIG. 4, the width of the connecting portion (5) is 3 to 15%, preferably 5 to 7% of the width of the marking sheet (4). 5
%. For example, width 20 as marking sheet (4)
mm, the width (W) of the connecting portion (5) is 0.6 to 3.0 mm, preferably 1.0 to 3.0 mm.
1.5 mm.

The thickness of the marking sheet (4) is
Depending on the type of sheet (4) to be used, if it is too thin, the tip (4a) of the sheet (4) will hang down under its own weight before being pinched before marking. It is not preferable because it cannot be performed. Also, if the thickness of the marking sheet (4) is too thick,
Since the coil winding cartridge of (4) has a diameter limitation, the coil winding length of the marking sheet (4) in the cartridge is short, which is not preferable, and the marking sheet is cut off from the cut (6). When the tip (4a) of (4) is torn off and the marking piece (7) is formed, the resistance increases, and a cut-out occurs on the side edge of the take-up sheet (3), causing breakage. Is not preferred.

If the thickness of the marking sheet (4) is too large, a step is formed in the portion after the marking piece (7) is sandwiched.
(7) The trace of (7) is attached, and when the sheet (3) such as metal foil is wound on the winding coil (1), the pressure roll (2) is
It is not preferable because traces hit by the support roll (2) remain on the take-up sheet (3) or scratches are caused, thereby causing breakage.

Also, the connecting portion of the marking sheet (4)
The width (W) of (5) depends on the type of sheet (4) used, but if it is too narrow, the marking sheet
Before the leading end (4a) of (4) is pinched inside the side edge of the winding sheet portion corresponding to a defective portion such as a pinhole of the winding coil (1), it also hangs down by its own weight and is pinched accurately. It is not preferable because it cannot be inserted, and the connected part is cut off due to the influence of wind or the like, which causes scattering or missing.

If the width (W) of the connecting portion (5) is too large, the leading end portion (4a) of the marking sheet (4) may not be cut (6).
This is not preferable because the resistance at the time of tearing off the sheet increases, and a deficient portion is formed at the side edge on the side of the take-up sheet (3), causing breakage.

In the embodiment of the present invention, a detector (30) for detecting a defective portion such as a pinhole of a sheet (3) such as a metal foil is used as an automatic clamping device for marking a defective portion of a wound sheet. And the marking sheet delivery mechanism (1
0), and the case where the cutter sheet (4) is provided with a cutter mechanism (20) for making cuts (6) at predetermined lengths on the marking sheet (4) before sending out is described. In some embodiments, such a cutter mechanism (20) may not be provided.

That is, in this case, the sheet (4) for marking a defective portion is previously cut at predetermined intervals (6).
It is sufficient to use a marking sheet (4) provided with. At this time, the cut (6) is a coil-shaped marking sheet.
(4) may be formed in a lump at a predetermined length and leaving a connecting portion (5) having a predetermined width (W) from one side edge of the sheet (4), or other Perforations provided at predetermined intervals may be used.

When the cut (6) is formed leaving a connecting portion (5) having a predetermined width (W) from the side edge of the sheet (4), the feeding of the marking sheet (4) is performed. At last,
To prevent the sheet (4) from being torn off from the cut (6), for example, the pivot (28) of the coiled marking sheet (4)
Is connected to a drive shaft of a motor or the like (not shown), and the pivot (28) is rotated in synchronization with the delivery of the marking sheet (4) by the operation of the marking sheet delivery mechanism (10).
It is preferable to assist the delivery of the scored sheet (4).

Even when such a cutter mechanism is not provided, similarly, when the winding of the metal foil or the like sheet (3) by the rotation of the winding coil (1), the above-mentioned marking sheet delivery mechanism is provided. By the operation of (10), the marking sheet (4) is fed out by a predetermined length, and the marking sheet (4) is sent out.
The tip (4a) of (4) is pinched inside the side edge of the winding sheet part corresponding to the defect such as pinholes of the winding coil (1), and the marking is made by rotating the winding coil (1). The leading end (4a) of the sheet (4) is pulled and cut from the nearest cut or perforation, and the defect marking piece (7) formed by this is used to remove the pinhole of the winding coil (1). The rolled-up sheet corresponding to the defective portion is provided so as to be sandwiched between the side edges thereof.

According to the above-mentioned apparatus for automatically inserting marking pieces, when manufacturing a sheet (3) such as a metal foil, the pinch detector (30) detects a defective portion such as a pinhole in conjunction with a defect detection signal. The strip-shaped defect marking piece (7) can be automatically inserted into the winding sheet side edge corresponding to all the defective portions of the winding coil (1) without any manual operation, As a result, the quality of the outflow product can be improved by clarifying the positions of all the defective portions.

In addition, by automating the operation of sandwiching the marking pieces (7), the speed limitation is eased and the productivity is improved.

Further, the hands and arms can be prevented from being entangled beforehand, and the safety is extremely high. Also marking pieces
(7) By clarifying the pinching position and eventually the defect position,
The cutting waste portion of the sheet product can be reduced, and the yield can be improved.

In the above-mentioned automatic clamping device for the wound sheet defective portion marking piece, if the cutter mechanism is not provided as in the first aspect of the present invention, the defective portion marking sheet (4) is used in advance. It is necessary to use a marking sheet (4) provided with cuts or perforations. However, since there is no cutter mechanism, there is an advantage that the structure itself of the apparatus is simple and the equipment cost is low.

Conversely, according to the second aspect of the present invention,
When the cutter mechanism (20) is provided, there is an advantage that a coil-shaped sheet without cuts can be used as it is as the defect marking sheet (4).

[0054]

Next, an embodiment of the present invention will be described with reference to the drawings.

First, FIG. 3 schematically shows a separator device for polymerized rolled aluminum foil. Here, the separator of the polymerized rolled aluminum foil, the upper and lower two aluminum foils (3) (3), which are polymerized and rolled, are divided into two upper and lower hands by a pair of upper and lower guide rolls (31) and nip rolls (32), Passes through a separate roll (33) and a support roll (pressure roll) (2a),
(1) is wound up. A raion roll (34) is brought into contact with the upper part of the upper winding coil (1). On the other hand, on the lower side, a winding coil passes through a separate roll (33) and a laion roll (pressure roll) (2b).
(1) is wound up. A support roll (35) is in contact with the lower part of the lower winding coil (1).

Further, a pinhole or the like of an aluminum foil (3) (3) before winding is provided between a pair of upper and lower guide rolls (31) and a nip roll (32) and a separate roll (33) (33). Detectors (30) (30) for detecting a defective portion are arranged.

In the above-described separator device for polymerized rolled aluminum foil, the winding device of the present invention is arranged so as to face between the upper winding coil (1) and the pressure roll (2) comprising the support roll (2a). An automatic clamping device for the sheet defect marking pieces is installed. In this device, a pressure roll consisting of a lower winding coil (1) and a laion roll (2b)
The automatic pinching device of the wound sheet defective portion marking piece of the present invention is provided so as to face between (2) and (3).

The operation of the apparatus of the present invention is the same on both the upper and lower sides of the polymerized rolled aluminum foil separator, and only the roll arrangement is different. Winding coil
Only for (1), the device of the present invention will be described.

That is, using the apparatus of the present invention shown in FIG. 1 and FIG. 2, the rolled aluminum foil (3) is pressed by the support roll (pressure roll) (2a) while the coil is wound.
At the time of winding on the coil (1), a strip-shaped marking piece (7) made of aluminum foil is used as a mark (mark) for a defective portion such as a pinhole of the aluminum foil (3). It is automatically sandwiched between the side edges of the rolled aluminum foil corresponding to defective areas such as pinholes.

Here, the aluminum foil (3) has a thickness of 7 μm.
m, a width of 1500 mm and a length of 24000 m were used.

On the other hand, a strip-shaped aluminum foil having a thickness of 30 μm and a width of 20 mm was used as the marking sheet (4).

The automatic clamping device for the marking piece (7) according to the present invention has a motor (driving mechanism) (11) operated by a detection signal of a defective portion such as a pinhole from the detector (30) and has a predetermined interval. A marking sheet sending mechanism (10) for feeding a defect marking sheet (4) having a cut (6) to the winding coil (1) side for a predetermined length, and a marking sheet (4) before sending. At every predetermined length and leaving a connecting portion (5) having a predetermined width (W) from one side edge of the sheet (4).
And (6) a cutter mechanism (20).

Then, the sheet feeding mechanism for marking (1
0) is the same as that described in the embodiment of the present invention, and the amount (length) of the marking sheet (4) sent out each time is 25 mm.

Further, a notch is formed on the marking sheet (4).
(6) The cutter mechanism (20) for inserting the same as that described in the embodiment of the present invention is used.
(W) The cuts (6) were formed at intervals of 25 mm except for the connecting portion (5) of 1.5 mm (see FIG. 4).

Now, before the winding by the winding coil (1), the motor of the marking sheet sending mechanism (10) is driven by a detection signal of a defective portion such as a pinhole from the detector (30) shown in FIG. (11) is actuated and the defect marking sheet (4) is fed out by the predetermined length, and as a result, the side edge of the wound aluminum foil portion corresponding to the defective portion such as a pinhole of the winding coil (1) is formed. The leading end (4a) of the marking sheet (4) is sandwiched inside,
(4a) is pulled by the rotation of the winding coil (1), cut from the cut (6) closest to this, and the marking piece is cut.
(7) was formed.

As a result, as shown in FIG. 5, the marking piece (7) made of an aluminum foil fragment at the leading end (4a) of the torn marking sheet (4) is replaced with a pinhole or the like of the winding coil (1). The winding coil is sandwiched between the side edges of the wound aluminum foil corresponding to the defective part.
In (1), the position of a defective portion such as a pinhole could be visually confirmed.

Also, a support roll (pressure roll) (2
a), winding coil (1), and upper rayon roll (34)
Coiling speed of aluminum foil (3) by 700
m / min.

The cut amount of the defective portion confirmed by the presence of the marking piece (7) made of the aluminum foil fragment was 1.4 to 1.6 kg.

On the other hand, for comparison, the conventional method
When the sandwiching operation of the marking piece made of aluminum foil fragments was performed manually, the coil winding speed was 500 for the same size wound aluminum foil (3).
550 m / min, and the cutting amount of the defective portion confirmed by the presence of the marking piece is 10 to 10 m / min.
It was 12 kg.

Therefore, according to the present invention, the winding speed of the wound aluminum foil (3) is increased by 21 to 29%, and the cut amount of the defective portion is reduced to about 1/7, and the yield is reduced. Improved.

[0071]

As described above, the present invention relates to an automatic pinching device for marking a defective portion of a wound sheet used for winding a sheet such as a metal foil onto a winding coil while pressing the sheet with a pressure roll. And a detector for detecting a defective portion such as a pinhole of a sheet such as a metal foil in a stage before winding, and a defective portion marking having a cut at predetermined intervals which is activated by a signal for detecting a defective portion such as a pinhole from the detector. And a marking sheet sending mechanism for sending a predetermined length of the sheet to the winding coil side.When the winding of the sheet such as a metal foil by the rotation of the winding coil, the marking sheet sending mechanism is actuated. The marking sheet is fed out for a predetermined length, and the leading end of the marking sheet is a side edge of a winding sheet portion corresponding to a defective portion such as a pinhole of a winding coil. The leading end of the marking sheet is pulled by the rotation of the winding coil and cut from the cut closest to this, and the defect marking piece formed by this is pinhole of the winding coil. It is configured to be inserted in the side edge portion of the wound sheet portion corresponding to the equal defect portion, and according to the device of the present invention, in conjunction with the defect detection signal of the pinhole detector, The strip-shaped defective portion marking piece can be automatically inserted into the side edge of the winding sheet portion corresponding to the defective portion such as all the pinholes of the winding coil without manual operation. The quality of the spilled product can be improved by clarifying the positions of all the defective parts, and the automation of the marking one-sided operation eases the speed limit and improves the productivity. Al to be able to prevent the entrainment of hands and arms in advance, a very high safety, the clarification of the marking piece 挾 inclusive position and thus defect position, it requires less cutting waste portions of the sheet material,
This has the effect of improving the yield.

[Brief description of the drawings]

FIG. 1 is a side view of an automatic pinching device for a wound sheet defective portion marking piece according to an embodiment of the present invention, in which a winding coil and a pressure roll are shown together.

FIG. 2 is an enlarged perspective view of the same.

FIG. 3 is a schematic side view showing a separator device for polymerized rolled aluminum foil, in which a winding sheet defect marking piece of the present invention is automatically sandwiched between a winding coil and a pressure roll thereof. Equipment is installed.

FIG. 4 is a partial plan view of only a defect marking sheet in FIG. 1;

FIG. 5 is a schematic perspective view of a winding coil in which a defective portion marking piece is sandwiched between side edges of a wound sheet portion corresponding to a defective portion such as a pinhole according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding coil 2 Pressure roll 2a Support roll (pressure roll) 2b Rayon roll (pressure roll) 3 Sheets of metal foil etc. (aluminum foil) 4 Sheets for marking a defect 4a Tip 5 Connecting part 6 Cut 7 Defect Marking piece 10 Marking sheet feeding mechanism 20 Cutter mechanism 30 Detector for defective part such as pinhole

Claims (2)

[Claims] An automatic sandwiching device for marking a defective portion of a wound sheet used for winding a sheet (3) such as a metal foil onto a winding coil (1) while pressing the sheet (3) with a pressure roll (2). A detector (30) for detecting a defective portion such as a pinhole of the sheet (3) such as a metal foil in a stage before winding;
Triggered by a defect detection signal such as a pinhole from the detector (30), a marking for feeding a defect marking sheet (4) having cuts (6) at predetermined intervals to the winding coil (1) side at a predetermined length. Sheet sending mechanism (10).
When the sheet (3) such as a metal foil is wound by rotation of the winding coil (1), the marking sheet (4) is fed out by a predetermined length by the operation of the marking sheet feeding mechanism (10), and the sheet is fed out. The leading end (4a) of the marking sheet (4) is sandwiched inside the side edge of the winding sheet portion corresponding to a defective portion such as a pinhole of the winding coil (1).
The tip (4a) of the marking sheet (4) is pulled by the rotation of the marking sheet (4) and cut from the cut (6) closest to this, and the defect marking piece (7) formed by this is wound into the winding coil (1). 3) An automatic clamping device for marking a defective portion of a wound sheet, which is located at a side edge of a wound sheet portion corresponding to a defective portion such as a pinhole. 2. In addition to a detector (30) for detecting a defective portion such as a pinhole of a sheet (3) such as a metal foil, and a marking sheet sending mechanism (10), a marking sheet before sending is provided.
(4) further comprising a cutter mechanism (20) for making a cut (6) at a predetermined length and leaving a connecting portion (5) having a predetermined width from one side edge of the sheet (4). 1. An automatic clamping device for a wound sheet defective portion marking piece according to 1.