JPH0824733A - Device for making masking sheet - Google Patents

Abstract

PURPOSE:To easily make a masking sheet having sufficient coverage from a paint. CONSTITUTION:A sheet roll 10 and a tape roll 20 are respectively positioned and arranged by bearing brackets 40 and 41 in a masking sheet making device. An adhesive tape 21 rewound from the tape roll 20 is accurately supplied to a fixed position of the sheet roll 10, hence the adhesive tape 21 is successivley superposed on a substrate sheet 11 while leaving a definite pasting mergin over the full length of the side edge of the substrate sheet 11 rewound from the sheet roll 10 and stuck on the substrate sheet 11 when passing the guide bar 33 and presser spring 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a masking sheet which is applied during a painting operation such as spray painting. More specifically, the present invention relates to a tape roll around which an adhesive tape of a certain width is wound and a tape roll. A mask roll formed by applying a sheet roll having a width of a base sheet wound thereon, and sequentially applying an adhesive tape fed from the tape roll to a side edge portion of the base sheet fed from the sheet roll. The present invention relates to a sheet manufacturing apparatus.

[0002]

2. Description of the Related Art For example, when multicolor coating is applied to an object to be coated by a spray coating method, a masking sheet is used in order to surely apply each coating separately. This type of masking sheet is generally a base material sheet with a high concealing property for paints such as aluminum foil,
An adhesive tape adhered to a side edge portion of the base sheet, which is adhered to an object to be coated through the adhesive tape. It has a function of covering the surface and preventing the paint from adhering to the unnecessary portion.

[0003]

By the way, as the above-mentioned base sheet and adhesive tape, those wound in a roll shape are prepared, respectively. An adhesive tape is attached to the side edges of the sheet each time to form a masking sheet having a desired size.

Here, in order to secure sufficient hiding power for the masking sheet, when the adhesive tape is attached to the side edge portion of the base sheet, the adhesive margin portion of the adhesive tape is constant over the entire length. There is a need. That is, at a portion where the adhesive margin portion of the adhesive tape is too small as compared to other portions, the adhesiveness of the masking sheet to the object to be coated becomes low, and the portion between the object to be coated and the masking sheet becomes unnecessary. Not only the paint may enter, but it may even come off the object to be coated. On the other hand, at a portion where the adhesive margin portion of the adhesive tape is excessively large compared to other portions, the adhesiveness of the adhesive tape to the base sheet becomes low, and unnecessary portions are removed between the base sheet and the adhesive tape. There is a risk that paint will penetrate into the.

However, when the adhesive tape is adhered to the base sheet, the work of making the adhesive margin portion of the adhesive tape constant over the entire length of the side edge portion of the base sheet is extremely complicated, and is particularly large. When manufacturing a masking sheet, it may even be difficult to sufficiently secure the masking sheet's concealing property.

In view of the above situation, an object of the present invention is to provide an apparatus capable of easily producing a masking sheet having sufficient hiding power for paint.

[0007]

In the present invention, a tape roll around which an adhesive tape of a constant width is wound and a sheet roll around which a base sheet of a constant width is wound are applied and fed out from the sheet roll. An apparatus for producing a masking sheet, which is configured by sequentially adhering an adhesive tape fed from the tape roll to a side edge portion of a base material sheet to be provided, which are arranged so that mutual intervals can be adjusted, A sheet roll supporting means for rotatably supporting the sheet roll, and a tape roll rotatably supported in a manner such that the axis of the tape roll is parallel to the axis of the sheet roll, and the tape roll. A tape roll support means that is arranged so as to be movable along the axial direction of the tape roll and that is arranged on an extension of the side edge portion of the base material sheet fed from the sheet roll; The sheet roll supporting means and the tape roll supporting means are disposed on the downstream side of the tape roll supporting means, and by contacting the adhesive tape fed from the tape roll and the base material sheet fed from the sheet roll through a guide surface, these A guide member that guides the adhesive tape and the base sheet in a state of being superposed on each other downstream, and a pressing unit that presses the adhesive tape and the base sheet passing through the guide member against the guide surface by the action of elastic force. And a masking sheet manufacturing apparatus are configured.

Further, in the present invention, a tape roll having an adhesive tape of a constant width wound thereon and a sheet roll having a base sheet of a constant width wound thereon are applied, and a base sheet fed from the sheet roll is used. A masking sheet manufacturing apparatus configured by sequentially adhering an adhesive tape fed from the tape roll to a side edge portion, the mutual spacing being adjustable, and the sheet rolls being interposed between each other. And a sheet roll supporting means for rotatably supporting the tape roll, the tape roll being rotatably supported in a manner in which the axis of the tape roll is parallel to the axis of the sheet roll, and A tape roll supporting means, which is arranged so as to be movable along the side edges of the base sheet fed from the sheet roll, and the sheet roll. These adhesive tapes are disposed on the downstream side of the supporting means and the tape roll supporting means, and come into contact with the adhesive tape fed out from the tape roll and the base material sheet fed out from the sheet roll via the guide surface, thereby adhering these tapes. And a guide member for guiding the base material sheets to each other in a state where they are superposed on each other, and the adhesive tape, which is disposed so as to be separable from and in contact with the guide surface, and which passes through the guide member due to its own weight. A masking sheet manufacturing apparatus is configured by including pressing means for pressing each of the base sheets against the guide surface.

[0009]

According to the above construction, the sheet roll and the tape roll are positioned relative to each other by the support means, and the adhesive tape fed from the tape roll is always accurately fed to the sheet roll at a fixed position. It is supplied and attached to the base sheet when passing through the guide member and the pressing means in that state.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing an embodiment. FIG. 1 conceptually shows one embodiment of a masking sheet manufacturing apparatus according to the present invention, in which a masking sheet applied during a painting operation is manufactured by using a sheet roll 10 and a pair of tape rolls 20. 1 illustrates a device.

Sheet roll 1 used in this manufacturing apparatus
As shown in FIG. 3, 0 is a base material sheet 11 formed in a band shape of a constant width from a material such as paper or aluminum foil having a high hiding power for a paint, and longer than the width of the base material sheet 11. A tubular body 12 having a tubular shape, in which the above-mentioned base material sheet 11 is sequentially wound around the outer circumference, and rotatably pierced through a central hole of the tubular body 12, from both ends of the tubular body 12. Each of the projecting portions includes a shaft member 13 having a small diameter, and various widths are prepared according to the size of the object to be covered.

On the other hand, the tape roll 20 used in the above-mentioned manufacturing apparatus is formed from a material similar to that of the base material sheet 11 into a strip shape having a constant width which is sufficiently narrower than the base material sheet 11.
Adhesive tape 21 with adhesive applied to the entire length of one surface
And a tubular body 22 having a tubular shape longer than the width of the adhesive tape 21 and having the adhesive tape 21 sequentially wound around the outer periphery in such a manner that its adhesive surface faces inward, and the tubular body 22. And a shaft member 23 that is rotatably inserted into the center hole of the cylindrical body 22 and that has projecting portions from both ends of the tubular body 22 each having a small diameter. Regardless, one pair with the same width is prepared.

As is apparent from FIG. 1, in the above manufacturing apparatus, a rectangular frame body 30 is formed on the upper surface of a mounting table (not shown) or on the upper portions of a plurality of legs (not shown). As shown in FIG. 1 and FIG. 2, the frame body 30 has an end frame 30a having a length longer than that of the longest sheet roll 10, and is parallel to each other from both ends of the end frame 30a. A pair of side frames 30b extending in the horizontal direction and each of which has its tip end inclined upward.
And a pair of rail plates 31 and 32 are held between the pair of side frames 30b, and a guide bar 33 and a guide bar 33 are provided between the tip portions of the pair of side frames 30b. The pressing spring 34 is held. The rail plates 31 and 32 have a rectangular plate shape in which the scales equal to each other are attached to the respective upper surfaces,
Each of them is installed between the pair of side frames 30b so as to be parallel to the end frame 30a. The guide bar 33 has a cylindrical shape with a sufficiently small diameter, and is installed between the pair of side frames 30b in a manner that its axis is parallel to the end frame 30a. As shown in FIG. 4, the pressing spring 34 has the guide bar 33.
Is a coil spring having substantially the same outer diameter as that of the side frame 3 and hooks 34a at both ends thereof.
By being inserted into the pin 35 planted in 0b, it is stretched between the pair of side frames 30b in a state where its peripheral surface is in pressure contact with the peripheral surface 33a of the guide bar 33. The surface of the pressing spring 34 is subjected to a surface treatment such as Teflon coating, which is highly releasable from the adhesive.

Further, in the above-mentioned manufacturing apparatus, as shown in FIGS. 1 to 3, a pair of moving bodies 36 and 37 are arranged on the pair of rail plates 31 and 32, respectively. The moving bodies 36 and 37 have a rectangular box shape in which both end faces and a part of the bottom wall are cut out, and the rail plates 31 and 32 are inserted into the respective center openings, respectively. 31 and 32 are movably arranged. As is clear from FIG. 2, these moving bodies 36, 3
7 has stopper screws 38 and 39 on the respective upper walls, and the roll support bracket 4 is provided on the upper surface of each of them.
It has 0 and 41. The stopper screws 38 and 39 have a length longer than the upper walls of the moving bodies 36 and 37, and are screwed into the screw holes formed in the upper walls of the moving bodies 36 and 37. Are arranged in such a manner that the tip ends of the are opposed to the upper surfaces of the rail plates 31 and 32. End frame 30
As shown in FIGS. 1 to 3, the roll support brackets (hereinafter, referred to as tape roll support brackets 40) provided on the moving body 36 of the rail plate 31 close to the a are respectively connected to each other from both ends of the moving body 36, as shown in FIGS. A pair of protrusions are provided upwardly in a manner to secure a gap substantially the same as the length of the tubular body 22 in the tape roll 20 described above, and the notches 40a are formed in the upper end portions of the respective tapes facing each other.
have. The notches 40a each have a substantially U-shape that opens toward the upper end, and are formed to have a width slightly wider than the narrow diameter portion of the shaft member 23 of the tape roll 20. On the other hand, a roll support bracket included in the moving body 37 of the rail plate 32 adjacent to the guide bar 33 (hereinafter, referred to as a sheet roll support bracket 41)
Are provided so as to project upward from the outer end of the moving body 37, and have fitting holes 41a at their upper ends.
The fitting hole 41a has an inner diameter substantially the same as the small diameter portion of the shaft member 13 of the sheet roll 10 described above, and is formed at the portions facing each other.

Further, in the above manufacturing apparatus, the cutter 5 is provided between the tip portions of the pair of side frames 30b in the frame body 30.
It has 0. As shown in FIGS. 2 and 4, the cutter 50 has a blade formed along the entire length of one side edge of a flat plate-shaped member having the same length as the guide bar 33.
The blade is held between the lower ends of the support blocks 30c projecting from the lower surfaces of the pair of side frames 30b in such a manner that the blade is parallel to the end frames 30a of the frame body 30.

In the masking sheet manufacturing apparatus configured as described above, first, the shaft member 23 (specifically, the small diameter portion) of the tape roll 20 is arranged in the notch 40a of each tape roll supporting bracket 40, and the tape is formed. The tape rolls 20 are rotatably supported on the roll support bracket 40 about the same horizontal axis.

Next, a sheet roll 10 having a width corresponding to the size of the object to be covered is selected, and the selected sheet roll 10 is rotatable between the sheet roll support brackets 41 according to the following procedure. Supported. That is, by appropriately moving the moving body 37 including the sheet roll support bracket 41 with respect to the rail plate 32, the shaft member 13 (specifically, the small diameter portion) of the sheet roll 10 is respectively moved to the sheet roll support bracket 41.
Of the tubular body 12 of the sheet roll 10 and then both end surfaces of the tubular body 12 of the sheet roll 10 come into contact with the inner surface of the sheet roll support bracket 41. By preventing the moving bodies 37 from moving with respect to the rail plate 32, the sheet roll 10 is moved to the tape rolls 2
It is rotatably supported about a horizontal axis parallel to the 0 axis of rotation. At this time, it is preferable to appropriately adjust the position of the moving body 37 and arrange the sheet roll 10 at the center of the rail plate 32. When adjusting the position of the moving body 37, if the scale attached to the rail plate 32 is used as a guide, the adjustment work can be easily performed.

As described above, the tape roll 20 and the sheet roll 10 are attached to the roll support brackets 4 respectively.
After supporting the tape rolls 0 and 41, the moving bodies 36 each including the tape roll supporting bracket 40 are moved appropriately, and the tape roll 20 is positioned with respect to the sheet roll 10 according to the following procedure. That is, the outer end surface of each tape roll 20 is attached to the sheet roll 10 respectively.
The amount of glue to be set with respect to the outer end surface of the adhesive tape, for example, ½ of the width of the adhesive tape 21 is arranged outward, and the stopper screw 38 of each moving body 36 is screwed from this state. The movement of the moving body 36 with respect to the rail plate 31 is blocked. At this time, the arrangement position of the moving body 36 can be set by using the scale attached to the rail plate 31 as a guide, or the adhesive tape 21 is fed out from the tape roll 20 and the tip end thereof is actually placed on the sheet roll 10. It is also possible to set while attaching.

When the masking sheet 60 is manufactured by the manufacturing apparatus which is prepared as described above, first, the adhesive tape 21 fed from each tape roll 20 is manufactured.
The front end of each of the sheet rolls 10 on the outer peripheral surface of the base material sheet 11 in the sheet roll 10 with a margin of width left 1/2 width,
Then, the base material sheet 11 and the pair of adhesive tapes 21 may be sequentially guided between the guide bar 33 and the pressing spring 34 by unwinding the base material sheet 11 from the sheet roll 10.

In the meantime, according to the above-mentioned manufacturing apparatus, since the individual tape rolls 20 are respectively positioned and arranged with respect to the sheet roll 10, the adhesive tapes fed from the respective tape rolls 20 as the base sheet 11 is fed out. 21 is always accurately fed to a fixed position with respect to the base sheet 11, and has a fixed margin over the entire length of the side edge portion of the drawn-out base sheet 11. In the embodiment, 1 of the adhesive tape 21 is used.
The adhesive sheet having a width of / 2 is secured and sequentially laminated on the base material sheet 11. Further, the base sheet 11 guided between the guide bar 33 and the pressing spring 34
The adhesive tape 21 is pressed against the peripheral surface 33a of the guide bar 33 in a state of being overlapped with each other by the elastic pressing force of the pressing spring 34. Will be attached to.

Therefore, as shown by the chain double-dashed line in FIG.
If the masking sheet 60 that has passed through the space is pulled out to the front side, the masking sheet 60 can be cut by the cutter 50 to easily obtain the masking sheet 60 having a desired length.

The masking sheet 60 thus manufactured
According to this, since the paste margin is constant over the entire length of the side edge portion of the base material sheet 11, it is possible to secure sufficient concealing property for the paint, and for example, a multi-color coating can be applied to the object by the spray coating method. When applying the coating, it is possible to surely separate the individual coatings.

The sheet roll supporting bracket 41 supports the sheet rolls 10 having different widths, and the arrangement position of the tape roll 20 is appropriately changed, so that a masking sheet having a desired size can be obtained in the same procedure as the above-mentioned operation. The 60 can be easily manufactured.

In the above embodiment, the adhesive tape is attached to both side edges of the base sheet to produce the masking sheet, but the adhesive tape is applied only to one side edge of the base sheet. Of course, it is also possible to produce a masking sheet to which is attached. Further, when the adhesive tape is attached to the side edge portion of the base sheet, in the embodiment, the adhesive margin of 1/2 of the width of the adhesive tape is secured, but this adhesive margin is set arbitrarily. It goes without saying that you can get it. Further, the tape roll and the sheet roll are arranged side by side in a substantially horizontal direction, and the masking sheet is fed from these rolls in a substantially horizontal direction. However, the present invention is not limited to these, and, for example, a tape roll and a sheet roll. Needless to say, and may be arranged side by side in the vertical direction, of course, the direction of the masking sheet fed from these rolls and which roll is arranged on the upstream side are arbitrary.

Further, in the above embodiment, as the sheet roll support means, a pair of sheet roll support means each movably arranged with respect to the rail plate is illustrated. However, in the present invention, at least one of them is movable. It is sufficient if it is provided.

Further, in the above embodiment, a cylindrical guide bar is illustrated as the guiding means, but the present invention is not limited to these, and as shown in FIGS. 5 to 7, for example,
A guide roller 70 rotatably arranged with the peripheral surface as a guide surface may be applied, and although not shown in the figure, a plate-shaped one having a flat guide surface may be applied. .

Furthermore, in the above-mentioned embodiment, the pressing spring which directly acts on the base sheet and the adhesive tape which are superposed on each other is illustrated as the pressing means, but the present invention is not limited to this. For example, as shown in FIGS. 5 and 6, a platen roller 71 is disposed so as to be movable toward and away from the guide means 70, and a coil spring 72 is interposed between the axes of the guide means 70 and the platen roller 71. The base sheet 11 and the adhesive tape 21 may be indirectly brought into pressure contact with the guide means 70 by the elastic force of the coil spring 72. Further, as shown in FIG. A heavy platen roller 73 is disposed so as to be movable toward and away from each other, and the weight of the platen roller 73 is used to move the base sheet 11 and the adhesive tape 21 to the guide surface 7 of the guide means 70.
It may be configured to be brought into pressure contact with 0a.

[0028]

As described above, according to the masking sheet manufacturing apparatus according to the present invention, the sheet roll and the tape roll are positioned and arranged by each supporting means, and the adhesive tape fed out from the tape roll. Is always accurately fed to the sheet roll at a fixed position, and is stuck to the base sheet when passing through the guide member and the pressing means in that state, which complicates the work. The adhesive margin portion of the adhesive tape can be set constant over the entire length, and sufficient concealability can be ensured even when manufacturing a large masking sheet.

[Brief description of drawings]

FIG. 1 is a perspective view conceptually showing one embodiment of a masking sheet manufacturing apparatus according to the present invention.

FIG. 2 is a view conceptually showing a side surface of the apparatus of the embodiment shown in FIG.

FIG. 3 is a sectional view conceptually showing a sheet roll support means and a tape roll support means applied to the apparatus of the embodiment shown in FIG.

4 is a view conceptually showing a guide member, a pressing means and a cutting means applied to the apparatus of the embodiment shown in FIG.

FIG. 5 shows a first masking sheet manufacturing apparatus according to the present invention.
It is a principal part cross-sectional side view which showed the modification notionally.

FIG. 6 is a sectional view conceptually showing a guide member and a pressing means applied to the first modified apparatus shown in FIG.

FIG. 7: Second masking sheet manufacturing apparatus according to the present invention
It is a principal part cross-sectional side view which showed the modification notionally.

[Explanation of symbols]

 10 ... Sheet roll 11 ... Base sheet 20 ... Tape roll 21 ... Adhesive tape 33 ... Guide bar 33a ... Guide bar peripheral surface 34 ... Pressing spring 41 ... Sheet roll support bracket 40 ... Tape roll support bracket 50 ... Cutter 60 ... Masking Sheet 70 ... Guide roller 70a ... Guide roller peripheral surface 71 ... Platen roller 72 ... Coil spring 73 ... Platen roller

Claims (3)

[Claims] 1. A side edge portion of a base material sheet which is obtained by applying a tape roll having an adhesive tape of a constant width wound thereon and a sheet roll having a base material sheet of a constant width wound thereon, and which is unrolled from the sheet roll. A masking sheet manufacturing apparatus configured by sequentially adhering an adhesive tape fed from the tape roll to the sheet roll, wherein the mutual intervals are adjustable and the sheet roll can be rotated between them. A sheet roll supporting means for supporting the tape roll, the tape roll being rotatably supported in such a manner that the axis of the tape roll is parallel to the axis of the sheet roll, and the tape roll is moved along the axis of the tape roll. A tape roll support means that is disposed so as to be possible and that is arranged on a side edge extension of the base material sheet that is fed from the sheet roll; And the tape roll supporting means, which are disposed on the downstream side, and come into contact with the adhesive tape fed from the tape roll and the base material sheet fed from the sheet roll via the guide surface, thereby adhering the adhesive tape and the base. A guide member for guiding the material sheets to each other in a state of being superposed on each other downstream, and a pressing unit for pressing the adhesive tape and the base material sheet passing through the guide member to the guide surface by the action of elastic force, respectively. A masking sheet manufacturing device characterized in that 2. A side edge portion of a base material sheet which is obtained by applying a tape roll having an adhesive tape of a constant width wound thereon and a sheet roll having a base material sheet of a constant width wound thereon, and which is unrolled from the sheet roll. A masking sheet manufacturing apparatus configured by sequentially adhering an adhesive tape fed from the tape roll to the sheet roll, wherein the mutual intervals are adjustable and the sheet roll can be rotated between them. A sheet roll supporting means for supporting the tape roll, the tape roll being rotatably supported in such a manner that the axis of the tape roll is parallel to the axis of the sheet roll, and the tape roll is moved along the axis of the tape roll. A tape roll support means that is disposed so as to be possible and that is arranged on a side edge extension of the base material sheet that is fed from the sheet roll; And the tape roll supporting means, which are disposed on the downstream side, and come into contact with the adhesive tape fed from the tape roll and the base material sheet fed from the sheet roll via the guide surface, thereby adhering the adhesive tape and the base. A guide member that guides the material sheets to each other in a state of being overlapped with each other, and the adhesive tape and the base that are disposed so as to be separable from and in contact with the guide surface and that pass through the guide member by the action of their own weight. A masking sheet manufacturing apparatus, comprising: pressing means for pressing each material sheet against the guide surface. 3. A cutting means for cutting the adhesive tape and the base sheet in a required length in a state of being overlapped with each other after passing through the guiding means. 2. The masking sheet manufacturing apparatus described in 2.