JPH07291521A - Device for peeling plate protective film - Google Patents

Abstract

PURPOSE:To prevent the scattering of the peeled protective film by automatically and continuously peeling the protective film from a plate with the protective film whose surface is covered with the protective film. CONSTITUTION:A plastic plate 1 for printing the name plate whose upper surface is covered with a protective film 2 is carried by a belt conveyor 3. The adhesive tape 5 is delivered from a tape coil 6 mounted on a reel 7 arranged at the position opposite thereto from the top. This adhesive tape 5 is coiled around a coiling core 20 mounted on a canti-lever roller 18 of a coiling device 10 as the protective film 2 side. The adhesive tape 5 is attached to the protective film 2 to be peeled therefrom by falling of the roller 18 with the self-weight when the plastic plate 1 reaches the position of the coiling core 20, and the peeled protective film 2 together with the adhesive tape 5 are coiled around the coiling core 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate protective film peeling apparatus for automatically peeling a protective film from a plate whose surface is covered with a protective film.

[0002]

2. Description of the Related Art Generally, plastic plates for nameplate printing and plate materials such as building materials are covered with a protective film to protect the surface before shipment, and the protective film is peeled off at the place of use before use. However, in order to peel off the protective film from this plate material, conventionally, an operator holds a small piece of the adhesive tape, attaches it to the protective film, and peels off a part of the protective film, The protective film that has been peeled off is gripped and the protective film is peeled off from the plate material.

[0003]

However, in the above-mentioned conventional method for peeling a protective plate material, the protective film is manually peeled off, so that it takes a long time to peel the protective film and the surface of the plate is scratched. There was an unsolved problem such that it took a lot of skill to quickly peel off without putting it on, and the peeled protective film was scattered and cleaning was troublesome.

Therefore, the present invention has been made by paying attention to the unsolved problem of the above-mentioned conventional example, and the protective film coated on the plate material can be automatically peeled off at a high speed, and the peeled protective film is also formed. It is an object of the present invention to provide a plate material protective film peeling device that can collect the materials in an orderly manner.

[0005]

In order to achieve the above object, the plate material protective film peeling device according to claim 1 is a plate material protective film peeling device for peeling a protective film coated on the surface of a plate material with a protective film. And a reel that conveys the plate material with the protective film, a reel that is arranged to face the plate material with the protective film that is conveyed by the conveyer, and that holds an adhesive tape rotatably, and a reel from the reel. An adhesive tape fed out with the adhesive surface facing the plate material with the protective film, and a film peeling means for adhering the adhesive tape to the protective film of the plate material with the protective film that is conveyed and winding each protective film. There is.

Further, in the plate material protective film peeling apparatus according to a second aspect, the film peeling means changes the outer peripheral surface thereof to the protective film of the plate material with the protective film according to the expansion of the winding diameter of the adhesive tape and the protective film. It is characterized in that it is configured to be held in a contact position.

Further, in the plate material protective film peeling device according to a third aspect of the present invention, the film peeling means has a structure in which the reel for winding the adhesive tape and the protective film is arranged so as to be rotatable only in the winding direction. I am trying.

Furthermore, the plate material protective film peeling apparatus according to a fourth aspect is characterized in that the film peeling means is arranged so as to face both sides of the plate material with the protective film to which the film peeling means is conveyed.

[0009]

In the plate material protective film peeling apparatus according to the first aspect, the adhesive tape having the adhesive surface unwound from the reel facing the conveyed plate material with protective film is wound by the film peeling means, and conveyed in this state. By conveying the plate material with the protective film to the film peeling means by the means, the adhesive tape wound and held by the film peeling means is attached to the protective film covering the plate material, and in this state, the plate material is conveyed by the conveying means. When the sheet is conveyed, the protective film is automatically peeled from the plate material, and the peeled protective film is wound together with the adhesive tape on the film peeling means.

Further, in the plate material protective film peeling apparatus according to the second aspect, the film peeling means successively expands the diameter by winding the adhesive tape and the protective film, but the outer peripheral surface is always conveyed by the conveying means. The peeling position of the protective film is ensured by holding the plate material at a position in contact with the protective film.

Further, in the plate material protective film peeling apparatus according to the third aspect, the film peeling means allows the reel for winding the adhesive tape and the protective film to rotate only in the winding direction. Also, the protective film is prevented from being reversed and rewound.

Further, in the plate material protective film peeling apparatus according to the fourth aspect, since the film peeling means is arranged so as to face both sides of the plate material with the protective film conveyed by the conveying means, both sides of the plate material are provided. The coated protective film can be peeled off at the same time.

[0013]

Embodiments of the plate-shaped protective film peeling device according to the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. In the figure, reference numeral 1 denotes, for example, 50c having a plastic protective film 2 coated on the upper surface.
A plastic plate for printing plates, which is a plate material with a protective film and has a size of m × 50 cm, and the plastic plate 1 for printing plates is conveyed rightward by a belt conveyor 3 which is horizontally arranged and is a conveying means. .

The belt conveyor 3 has a structure in which a belt 3c is stretched around a driving roller 3a and a driven roller 3b arranged at both ends in the horizontal direction, and the driving roller 3a is rotationally driven by an electric motor 3d. As a result, the plastic plate 1 for nameplate printing placed on the upper surface of the belt 3c is conveyed to the right. A guide plate 3e for preventing downward bending of the belt 3c is provided on the lower surface of the belt 3c on the upper surface at an intermediate position between the driving roller 3a and the driven roller 3b.

At a position above the guide plate 3e of the belt conveyor 3, the winding core 4 has a width of 18 mm with an adhesive attached to one surface thereof.
A reel 7 having a tape winding body 6 rotatably mounted and holding the adhesive tape 5 of a certain degree is detachably and rotatably held by a reel holding member 7a, and the adhesive tape 5 fed from the reel 7 is The adhesive surface is guided downward by the guide member 9 so as to face the protective film 2 of the plastic plate 1 for plate printing, which is conveyed by the belt conveyor 3, and is wound up by the winding device 10 as film peeling means.

The guide member 9 is rotatably arranged at a lower right position for guiding the adhesive tape 5 fed from the reel 7, and is rotatably arranged above the guide roll 9a. Guide roll 9b, a guide roll 9c rotatably arranged on the upper left side of the reel 7 on the left side of the guide roll 9b, and an adhesive tape feeding unit that rotatably holds the guide roll 9a at the tip of the piston rod 9d. And an air cylinder 9e for use.

The winding device 10 includes guide shafts 11a and 11b arranged at a rear position of the guide plate 3e of the belt conveyor 3 at predetermined intervals, and these guide shafts 11a and 11b.
The roll holding frame 12 guided by the a and 11b to be slidable in the vertical direction, the stopper 13 bridged between the guide shafts 11a and 11b for restricting the upward movement of the roll holding frame 12, and the roll holding frame. 12 to the upper stopper 1
3, a roll-raising air cylinder 14 that is lifted until it abuts on the roller 3, and a support shaft 1 that is cantilevered by a roll holding frame 12.
5 and a cylindrical roll 18 rotatably supported by bearings 16 and 17 at a position of the support shaft 15 facing the belt conveyor 3.

The cylindrical roll 18 inserted between the rear end surface of the cylindrical roll 18 and the support shaft 15 is allowed to rotate counterclockwise as viewed in FIG. One-way clutch 19 for blocking and cylindrical roll 18
3 and a core 20 made of synthetic resin or cardboard, which is detachably wound around the outer peripheral surface of the core and is fixed by an adhesive tape T different from the adhesive tape 5, and as shown in FIG. 5 is attached with an adhesive tape T.

Further, pass sensors 21 and 22 formed of reflection type photoelectric detection elements for detecting the passage of the plastic plate 1 for printing the name plate are arranged at the left and right positions sandwiching the winding device 10, and the pass sensor 21 prints the name plate. When the right end of the plastic plate for use 1 is detected, the supply of the pressurized gas to the air cylinder 9e for feeding the adhesive tape is stopped, and instead, the pressure chamber is communicated with the atmosphere to allow the guide roll 9a to rise. At the same time, the roll raising air cylinder 14 is connected to the atmosphere to lower the roll by its own weight, and when the passage sensor 22 detects the passage of the nameplate printing plastic plate 1, it is added to the adhesive tape feeding air cylinder 9e. By supplying pressurized gas and lowering the piston rod 9d, the adhesive tape 5 is fed from the reel 7 by a predetermined amount, and the support shaft 15 is used for supporting shaft clamp. Clamped in Ashirinda 23 supplies the pressurized gas to the roll increases air cylinder 14 raises the cylindrical roll 18.

Next, the operation of the first embodiment will be described.
First, the tape winding body 6 is mounted on the reel 7, the winding core 20 is formed on the roll 18 held by the roll holding frame 12 as shown in FIG. 2, and the adhesive tape 5 is unwound from the reel 7 in this state. , The guide rolls 9a to 9c of the guide member 9
3 is wound around the core 20 as shown in FIG. 3, and the tip end thereof is attached to the core 20 with the adhesive tape 5.

At this time, pressurized gas is supplied to the adhesive tape feeding air cylinder 9e, the piston rod 9d is extended, the guide roll 9a is lowered, and the adhesive tape 5 is fed out by a predetermined amount. The pressurized air is supplied to the roll raising air cylinder 14 so that the roll supporting frame 1
2 is moved to an upper position where it abuts on the stopper 13, and the adhesive tape 5 wound around the winding core 20 is held at a position separated from the belt conveyor 3 upward.

In this state, the belt conveyor 3 is rotationally driven in the clockwise direction as viewed in FIG. 1 by rotationally driving the driving motor 3d, and the upper surface of the belt 3c on the driving roller 3a side is covered with the protective film 2. The plastic plate 1 for nameplate printing is placed so that the protective film 2 is on the upper surface side.

As a result, the plastic plate 1 for printing the nameplate is moved to the right, and when the right end face is detected by the passage sensor 21, the adhesive tape feeding air cylinder 9e.
Is communicated with the atmosphere, the piston rod 9d, that is, the guide roll 9a is allowed to rise, and the pressure chamber of the roll-elevating air cylinder 14 is also communicated with the atmosphere. 12 and the roll 18 descend by their own weight, the adhesive tape 5 wound around the winding core 20 comes into contact with the belt 3c of the belt conveyor 3, whereby the roll 18 is rotated along with the movement of the belt 3c, In accordance with this, the adhesive tape 5 is wound up.

In this state, the plastic plate 1 for printing the nameplate
When the tape reaches below the winding core 20, the adhesive tape 5 moves to the belt 3
From c to the protective film 2, the protective film 2 to which the adhesive tape 5 is adhered is sequentially transferred from the nameplate printing plastic plate 1 as the nameplate printing plastic plate 1 moves to the right in this state. It is peeled off and wound around the core 20 together with the adhesive tape 5. During this time, the piston rod 9d of the adhesive tape feeding air cylinder 9e contracts to allow the guide roll 9a to rise, and the adhesive tape 5 is pulled out accordingly.

Then, when the plastic plate 1 for nameplate printing comes out from under the winding core 20, the adhesive tape 5 is again applied to the belt 3.
By being attached to c, it is further wound around the winding core 20, and the left end of the plastic plate 1 for nameplate printing is the passage sensor 2
After passing 2, the roll 18 is raised by supplying pressurized air to the roll raising air cylinder 14,
The adhesive tape 5 is separated from the belt 3c, pressurized air is supplied to the adhesive tape feeding air cylinder 9e, and the piston rod 9d is extended. At this time, since the reverse rotation of the roll 18 is blocked by the one-way clutch 19, the adhesive tape 5 is fed out from the reel 7 by a predetermined amount as the guide roll 9a is lowered by the movement of the piston rod 9d.

Thereafter, the plastic plate 1 for nameplate printing is sequentially placed on the belt conveyor 3 at a predetermined interval, whereby the same operation as above is repeated, the protective film 2 is peeled off, and the peeled protection is carried out. The film 2 is wound around the core 20 together with the adhesive tape 5.

When a predetermined amount of the protective film 2 and the adhesive tape 5 are wound around the core 20, the adhesive tape 5 is cut, and the core 20 is pulled out from the roll 18 from the side opposite to the roll holding frame 12. By removing and newly forming the winding core 20 on the roll 18 and then adhering the adhesive tape 5, the protection film 2 can be wound again, and the tape winding body 6 held on the reel 7 Adhesive tape 5
When there is no longer, a new tape winding body 6 is mounted on the reel 7 and the adhesive tape 5 is attached to the guide rolls 9a to 9a.
It may be attached on the protective film 2 or the adhesive tape 5 wound around the core 20 around the c.

As described above, according to the first embodiment, the roll-raising air cylinder 1 with the adhesive tape 5 being fed by the predetermined amount by the adhesive tape feeding air cylinder 9e.
By making the pressure chamber of No. 4 communicate with the atmosphere, the roll holding frame 12 and the roll 18 are dropped downward by their own weights, and the adhesive tape 5 attached to the core 20 wound around the roll 18 is attached to the belt 3c. The adhesive tape 5 and the protective film 2 are wound on the winding core 20 while being brought into contact with each other along with the movement of the belt 3c. Can be automatically wound, and the adhesive tape 5 and the protective film 2 wound on the core 20 are
Can be easily removed by simply pulling it out of the roll 18, and its disposal can be easily performed.

In the above embodiment, the case where the protective film 2 is coated on one side of the plastic plate 1 for printing plates has been described, but the present invention is not limited to this, and the plastic plate for printing plates is not limited to this. When the protective film 2 is coated on both surfaces of the sheet 1, as shown in FIG.
Two sets of the belt conveyors 3 are provided at a predetermined interval, the winding device 10 is symmetrically arranged vertically between the belt conveyors 3, and two sets of the protective film peeling devices are provided, whereby the protective films on both sides are provided. 2 can be peeled off at the same time.

At this time, since the plastic plate 1 for printing the inscription plate between the belt conveyors 3 has no driving force to the right, either one of the winding devices 10 is rotationally driven or two sets of the belt conveyors 3 are used. A roller for sandwiching the plastic plate 1 for nameplate printing may be arranged at an end position of the plate so that the driving force of the belt conveyor 3 is transmitted to the plastic plate 1 for nameplate printing. In the take-up device 10, the roll-raising air cylinder 14 may be omitted, and instead of this, a pressure spring 30 may be provided to absorb the diameter expansion due to the winding of the adhesive tape 5 and the protective film 2.

Further, in the above-mentioned embodiment, the case where the plate material is the plastic plate 1 for nameplate printing has been described, but the present invention is not limited to this, and a building material or at least one surface covered with the protective film 2 may be used. Even if there is, the present invention can be applied. Further, in the above embodiment,
The case where the belt conveyor 3 is applied as the transfer means has been described, but the present invention is not limited to this, and it goes without saying that a roller conveyor or other transfer means may be applied.

[0032]

As described above, according to the plate material protective film peeling apparatus of the first aspect, the plate material protective film peeling apparatus peels the protective film coated on the surface of the plate material with the protective film, Conveying means for conveying the plate material with the protective film, a reel arranged to face the plate material with the protective film conveyed by the conveying means, and rotatably holding an adhesive tape, and an adhesive surface protected from the reel Since the adhesive tape fed out so as to face the plate material with film is attached to the protective film of the plate material with protective film to be conveyed and the film peeling means for winding each protective film is provided, the protective film of the plate material is provided. Can be continuously and automatically peeled off without relying on human hands, and the peeled protective film can be wound up by the film peeling means. It is possible to reliably prevent the protective film is scattered, there is an advantage that it is possible to save the trouble of cleaning.

Further, according to the plate material protective film peeling apparatus of the second aspect, the film peeling means protects the outer peripheral surface of the plate material with the protective film in accordance with the expansion of the winding diameter of the adhesive tape and the protective film. Since it is configured to be held in a position where it comes into contact with the film, it is possible to reliably prevent the passage of the plate material due to the expansion of the film winding means and to achieve an effect that good protection film can be peeled off. To be

Further, according to the plate material protective film peeling device of the third aspect, the film peeling means is configured such that the reel for winding the adhesive tape and the protective film is arranged so as to be rotatable only in the winding direction. In addition, it is possible to surely prevent the wound-up adhesive tape and the protective film from being rewound, and it is possible to easily take out the adhesive tape from the reel.

Further, according to the plate material protective film peeling apparatus of the fourth aspect, since the film peeling means is arranged so as to oppose both sides of the conveyed plate material with protective film, both sides of the plate material When the protective film is coated on the above, the effect that these can be peeled off at the same time is obtained.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is an explanatory view showing a state where an adhesive tape is wound around a winding core of the winding device of the present invention.

FIG. 4 is a schematic configuration diagram showing another embodiment of the present invention.

[Explanation of symbols]

 1 plastic plate for printing a plate 2 protective film 3 belt conveyor 3a driving roller 3b driven roller 3c belt 3d electric motor 3e guide plate 5 adhesive tape 6 tape winding body 7 reel 9 guide member 9a guide roll 9b guide roll 9c guide roll 9d Piston rod 9e Adhesive tape feeding air cylinder 10 Winding device 11a Guide shaft 11b Guide shaft 12 Roll holding frame 14 Roll raising air cylinder 15 Support shaft 18 Roll 19 One-way clutch 20 Roll core 21 Pass sensor 22 Pass sensor

Claims (4)

[Claims] 1. A plate material protective film peeling device for peeling a protective film coated on the surface of a plate material with a protective film, comprising a conveying means for conveying the plate material with a protective film,
A reel that is disposed so as to face the plate material with the protective film and is rotatably holding an adhesive tape conveyed by the conveying means, and an adhesive fed from the reel with its adhesive surface facing the plate material with the protective film. A plate material protective film peeling device, comprising: a tape peeling unit that attaches a tape to a protective film of a plate material with a protective film that is conveyed and winds the protective film together. 2. The film peeling means is configured to hold an outer peripheral surface of the pressure-sensitive adhesive tape and the protective film at a position in contact with the protective film of the plate material with the protective film in accordance with an increase in winding diameter of the protective film. The plate material protective film peeling device according to claim 1, wherein 3. The plate material protecting means according to claim 1, wherein the film peeling means has a structure in which a reel for winding the adhesive tape and the protective film is arranged so as to be rotatable only in the winding direction. Film peeling device. 4. The plate material protective film peeling apparatus according to claim 1, wherein the film peeling means is arranged so as to face both surfaces of the conveyed plate material with protective film.