JPH0957226A - Device for regenerating ohp film and method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and method for regenerating OHP films which improve workability and stabilize regeneration quality. SOLUTION: A first stage section consists of transporting rollers 15a to 15e which transport the OHP films F, a means for applying a solvent for dissolving the ink on the surfaces of the OHP films F transported by these rollers and a brushing roller 18 which is rotated at a speed different from the rotating speed of the transporting rollers 15a to 15e and removes the ink by rubbing the surfaces of the OHP films F after the films are coated with the solvent. A second stage section consists of rollers 23a to 23c for transporting the OHP films F past the first stage section and a means for washing the OHP films F. A third stage section consists of roller 26a to 26b for transporting the OHP films F past the second stage section and a fan 33 for water draining, drying and finishing the surfaces of the OHP films F by blowing air thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an OHP film reproducing apparatus and method used in an overhead projector (commonly referred to as "OHP") for enlarging and projecting an image. More specifically, the present invention relates to an OHP film reproducing apparatus and method. OHP to erase characters and figures already drawn with ink so that they can be used repeatedly
The present invention relates to a film reproducing apparatus and method.

[0002]

2. Description of the Related Art When gathering a large number of people to present a paper or product, the presentation material is drawn as an image on a film (hereinafter referred to as "OHP film") using a dedicated marker. There is a method of enlarging and projecting this with OHP.
Further, after the use, the ink on the OHP film is erased so that it can be repeatedly used. Conventionally,
When the ink on the OHP film is erased, a solvent such as thinner is included in the waste cloth, and the OHP film is wiped by hand and dried.

[0003]

However, the conventional method for erasing the ink on the OHP film relies on manual labor, so that the workability is poor and the quality after reproduction varies. This is a particular problem when a large amount of OHP film is recycled at the same time.

The present invention has been made in view of the above problems, and an object thereof is to provide an OHP film reproducing apparatus and method capable of improving workability and stabilizing reproduction quality. . Further, other objects will be clarified sequentially in the contents described below.

[0005]

In order to achieve the above object, in the OHP film reproducing apparatus of the present invention as set forth in claim 1, an OHP film on which characters, figures, etc. are drawn with an oil-based ink is used. First conveying roller means for conveying, solvent applying means for applying a solvent to the surface of the conveyed OHP film to dissolve the ink, and rotation at a speed different from the rotation speed of the conveying roller. A brush roller for rubbing the surface of the OHP film after the solvent is applied to remove the ink.
Process section, second transport roller means for transporting the OHP film that has passed through the first process section, and the second transport roller means.
A second process section having means for washing the OHP film being carried by the carrying roller means, and a third carrying roller means for carrying the OHP film having passed through the second step section. A third process section having a drier means for blowing air onto the surface of the OHP film being conveyed by the third conveying roller means to finish the drying. is there.

Further, the OHP of the present invention according to claim 2
When playing the film, use oil-based ink
The OHP film on which a figure or the like is drawn is conveyed by a conveying roller, and a solvent is applied to the surface of the conveyed OHP film on which the characters or figures are drawn to dissolve the ink, and then the conveyance is performed. A first step of removing ink while rubbing the surface with a brush roller having a rotation speed different from that of a roller, and the OHP film that has undergone the first step is conveyed by rollers, and the OHP film is conveyed during this conveyance. The second step of washing with water, the OHP film that has been subjected to the second step are conveyed by rollers, and during the conveyance, air is blown to drain the water and finish the drying process. It was done.

According to the invention described in claims 1 and 2,
It becomes possible to automate a series of operations from dissolving and removing the oil-based ink drawn on the OHP film, further washing with water, and then drying.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 show one embodiment of the OHP film reproducing apparatus according to the present invention.
1 is a schematic vertical sectional side view taken along the line AA of FIG. 2, and FIG. 2 is a plan view of the reproducing apparatus.

In FIG. 1 and FIG. 2, this reproducing apparatus 1
Has a box-shaped housing 2 having a bottom wall 2a, front and rear side walls 2b and 2c, and left and right side walls 2d and 2e and having an open top surface. Further, on the outside of the side wall 2e, as shown in FIG. 2, an auxiliary frame plate 3 is attached along the side wall 2e substantially in parallel, and a power transmission mechanism portion is arranged between the auxiliary frame plate 3 and the side wall 2e. The space 4 is formed. In addition, the inside of the housing 2 has two partition walls 5, 6
From the front side, the solvent cleaning tank 7, the water cleaning tank 8, and the draining / drying tank 9 are divided into three tanks in this order.

More specifically, the side wall 2b on the front side of the housing 2 is provided with an opening 11 into which an OHP film F (hereinafter, simply referred to as "OHP film F") requiring regeneration is inserted. It is provided. In addition, a guide plate 12 for guiding the OHP film F into the solvent cleaning tank 7 is provided in the opening 11 so as to be gradually inclined toward the inside of the solvent cleaning tank 7. on the other hand,
The side wall 2c on the rear side of the housing 2 is provided with a discharge port 13 for discharging the OHP film F, which has been regenerated, from the draining / drying tank 9 to the outside. Further, inside the draining / drying tank 9, a guide plate 14 for guiding the OHP film F in the draining / drying tank 9 toward the discharge port 13 is provided substantially horizontally at the portion of the discharge port 13. ing.

In the solvent cleaning tank 7, left and right side walls 2d, 2
A plurality of (five in this embodiment) conveying rollers 15a, 15b, 15 are supported by e on both ends rotatably.
c, 15d, and 15e are arranged in the front-rear direction and provided at substantially the same height position. Further, each of the transport rollers 15a-1
One end of the shaft 5e penetrates the side wall 2e and projects into the space 4 between the auxiliary frame plate 3 and the side wall 2e, and a sprocket (not shown) is attached to each of the projected ends. The sprocket is used for each of the transport rollers 15a-1.
It is structured to rotate integrally with 5e.

In the solvent cleaning tank 7, right and left side walls 2 are also provided.
With both ends rotatably supported by d and 2e, the guide roller 16, pusher roller 17, brush roller 1
8 are provided. Of these, the guide roller 16 is
The pusher roller 17 is disposed above the transport roller 15a in contact with the transport roller 15a, and the pusher roller 17 is disposed above the transport roller 15c in contact with the transport roller 15c. There is. Although not shown, a spring is provided between the pusher roller 15a and the housing 2, and the pusher roller 17 is strongly pressed against the conveying roller 15c by this spring force. Further, the remaining brush roller 18 is formed as a rotating brush with relatively hard bristles planted on the entire peripheral surface, and is formed on the upper side of the carrying roller 15e.
Is arranged so as to be in contact with. In addition, the lower sides of the transport rollers 15b and 15d receive the lower sides of the transport rollers 15b and 15d so that a part of the center in the front-rear direction is lightly contacted with the transport rollers 15b and 15d. Guide plates 19 and 20 are provided. The respective film guide plates 19 and 20 are curved (curled) so that the front and rear ends thereof are directed upward.

Further, in the solvent cleaning tank 7, a guide plate 21 is provided between the conveying roller 15e and the partition wall 5. The upper surface of the guide plate 21 extends from the contact position between the transport roller 15e and the brush roller 18 toward the upper end of the partition wall 5, and is provided so as to be inclined. Further, a guide bar 22 is arranged above the guide plate 21 at a position slightly deviated from the partition wall 5 toward the solvent cleaning tank 7 side. Both ends of the guide bar 22 are rotatably supported by the left and right side walls 2d, 2e, and one end of the guide bar 22 extends through the side wall 2e into the space 4 and has a sprocket (not shown) at one end thereof. Is attached, and this sprocket is structured to rotate integrally with the guide bar 22.

Next, the structure of the water cleaning tank 8 will be described. Inside the water cleaning tank 8, a plurality of side walls 2d and 2e are supported rotatably on both side walls 2d and 2e. Then, three (3) conveying rollers 23a, 23b, 23c are arranged in the front-rear direction and provided at substantially the same height position. Furthermore, one end of the shaft of each of the transport rollers 23a to 23c has a side wall 2
Space 4 between the auxiliary frame plate 3 and the side wall 2e
The sprocket (not shown) is attached to each of the projected ends, and the sprocket is configured to rotate integrally with the transport rollers 23a to 23c.

In the water washing tank 8, the left and right side walls 2 are also provided.
Idler rollers 24a, 24b, 24c are provided side by side in the front-rear direction with both ends rotatably supported by d, 2e. In addition, these idle rollers 2
4a to 24c are above the transport rollers 23a to 23c,
Further, they are pressed against the conveying rollers 23a to 23c which oppose each other. Further, in the water cleaning tank 8, a guide plate 25 is horizontally arranged between the transport roller 23c and the partition wall 6.

Next, the structure of the draining / drying tank 9 will be described. Inside the draining / drying tank 9, the left and right side walls 2 are provided.
A plurality of (four in this embodiment) transport rollers 26a, 26b, while both ends are rotatably supported by d and 2e, respectively.
26c and 26d are arranged in the front-rear direction and provided at substantially the same height position. Further, each of the transport rollers 26a-26
One end of the shaft of d penetrates the side wall 2e and the auxiliary frame plate 3
Is projected into the space 4 between the side wall 2e and the side wall 2e, and a sprocket (not shown) is attached to each projected end portion of the sprocket.
It has a structure that rotates integrally with d.

Brush rollers 27a, 27b, 27c and 27d are arranged in the front-rear direction in the draining / drying tank 9 with both ends rotatably supported by the left and right side walls 2d and 2e. Has been. The brush rollers 27a to 27d are formed as rotary brushes with relatively hard bristles planted on the entire peripheral surface.
6a to 26d, and the conveying roller 2 which is opposed to
6a to 26c are pressed against each other. Furthermore, in the water cleaning tank 8, between the transport roller 26a and the partition wall 6,
The guide plate 28 is arranged horizontally.

Next, on the upper side of the housing 2, between the solvent cleaning tank 7 and the water cleaning tank 8, the left and right side walls 2d, 2 are provided.
A bridge plate 29 is disposed over the bridge e, and an electric motor 30 is mounted on the bridge plate 29. The rotary shaft 30a of the electric motor 30
Is projected into a space 4 between the auxiliary frame plate 3 and the side wall 2e, and a sprocket is integrally rotatably attached to the tip of the rotary shaft 30a in the space 4.

In addition, a fan 33 is mounted right above the draining / drying tank 9 so as to straddle the left and right side walls 2d and 2e, and air is blown from the fan 33 into the draining / drying tank 9. The structure is such that the water adhering to the OHP film F passing thereunder can be blown off and dried.

Next, the structure of the space 4 will be described. Inside the space 4, the transport rollers 15a to 15a are provided.
e, the guide bar 22, the transport rollers 23a to 23c, the transport rollers 26a to 26d, and the rotating shaft 30a of the electric motor 30.
In addition to the sprockets attached to the
An idle roller 31 is attached to the side of the water washing tank 8 with the sprocket in between, and a sprocket (not shown) is attached to the idle roller 31 so as to be integrally rotatable. Further, an idle roller 32 is provided on the side of the draining / drying tank 9 with the partition wall 6 interposed therebetween.
A sprocket (not shown) is integrally rotatably attached to the idle roller 32.

Further, the transport rollers 15a to 15e,
One endless chain 34 is commonly stretched over each sprocket mounted on the guide bar 22, the conveying roller 23a, and the rotating shaft 30a of the electric motor 30, and the conveying rollers 23a to 23c and the conveying rollers 26a to Another endless chain 35 is commonly stretched over each sprocket attached to each shaft of the 26d and the idle rollers 31, 32. Then, when the electric motor 30 is rotated, the electric motor 3
The rotation of 0 is transmitted to the conveying roller 23a, the conveying rollers 15a to 15e, and the guide bar 22 via the endless chain 34 to rotate them in the OHP film conveying direction, and at the same time, to the conveying rollers 23a to 23c via the endless chain 35. , The idle rollers 31, 32, and the conveying rollers 26a to 26d are also transmitted to the OHPs.
Rotate in the film transport direction.

In the thus constructed recycling apparatus, the solvent such as thinner is fed into the solvent washing tank 7 by the conveying rollers 15a-1.
5e is used to the extent that it is submerged, and water is used in the water cleaning tank 8 to the extent that the transport rollers 23a to 23c and the idle rollers 24a to 24c are immersed. Then, when a start-up switch (not shown) of the reproducing device is turned on, the electric motor 30 is rotated and the conveying roller 15 is rotated.
a to 15e, transport rollers 23a to 23c, transport roller 2
6a to 26d are rotated in the OHP film transport direction, and the fan 33 is driven to blow warm air into the draining / drying tank 9.

In this state, OH is placed on the guide plate 12.
When the P film F is placed and released, the OHP film F slides on the guide plate 12 and enters the solvent cleaning tank 7 through the opening 11, and the leading end abuts between the transport roller 15a and the guide roller 16. Then, since the transport rollers 15a to 15e are rotated in the OHP film transport direction, they are sucked between the transport roller 15a and the guide roller 16 and immersed in the solvent contained in the solvent cleaning tank 7. As a result, the step of melting the ink (first step) is started. The front end of the OHP film F passing between the transport roller 15a and the guide roller 16 is directed downward, and the OHP film F is sucked between the film guide plate 19 and the transport roller 15b, and subsequently, the transport roller 15c and the pusher. Between the roller 17, the film guide plate 20 and the transport roller 15d
It is sucked between the transport roller 15e and the brush roller 18 in order. Here, the brush roller 18
The rotation is slower than that of the conveying roller 15e due to the load being applied, and when the OHP film F passes, the brush roller 18 rubs the OHP film F. The OHP film F placed in the solvent cleaning tank 7 is a solvent from the time it is sandwiched between the transport roller 15a and the guide roller 16 until the time it finishes passing between the transport roller 15e and the brush roller 18. Since it is immersed inside, the oil-based ink drawn on the OHP film F is in a dissolved state to some extent. Therefore, when passing between the conveying roller 15e and the brush roller 18, the brush roller 18 rubs the O
The oil-based ink on the HP film F is wiped off.

Further, the conveying roller 15e and the brush roller 18
The OHP film F that has finished passing between the guide plate 21
It is discharged to the upper side, and the treatment in the first step is completed. Then, it slides on the guide plate 21 toward the side of the water washing tank 8 to get over the partition wall 5 and is fed into the water washing tank 8. As a result, the washing step (second step) is started. Then, the OHP film F sent into the water cleaning tank 8 has the transport roller 23a, the idle roller 24a, and the transport roller 23.
b and the idle roller 24b, and the transport roller 23c and the idle roller 24c, respectively, to pass through the guide plate 25 in the water.
Dust and the like that have been sent to the top and are generated in the solvent cleaning tank 7 are cleaned with water in the water cleaning tank 8. This completes the processing in the second step. Even in the case of the processing here, the idle roller 24b is used as a brush roller, and a load is applied in the same manner as the brush roller 18 in the solvent cleaning tank 7, and the OHP film F
On the other hand, rubbing by the idle roller 24b may be generated and further wiped and cleaned.

Subsequently, the OH conveyed to the guide plate 25
The P film F gets over the partition wall 6 and is sent into the draining / drying tank 9 to start the draining / drying process step (third step). Then, the O sent to the draining / drying tank 9
The HP film F includes a transport roller 26a and a brush roller 27.
a, the transport roller 26b and the brush roller 27b, the transport roller 26c and the brush roller 27c, and the transport roller 26d and the brush roller 27d, and then to the guide plate 14. In addition, in the draining / drying tank 9, the fan 33
Air is blown onto the surface of the OHP film F to blow away water, and draining and drying are performed. This completes the processing in the third step. After that, outlet 1
After being discharged from the draining / drying tank 9 through the housing 3, that is, from the housing 2, the regeneration is completed. The OHP film thus regenerated can be reused,
This can be repeated.

Therefore, according to this OHP film reproducing apparatus, when the OHP film F is placed on the guide plate 12 and released, the OHP film F passes through the solvent washing tank 7, the water washing tank 8, the draining / drying tank 9. Since it is regenerated and discharged from the discharge port 13, full automation is possible. Also, since the same work is always performed by the machine, the reproduction quality can be stabilized.

In the above embodiment, the structure in which the upper surface of the housing 2 is almost completely opened has been described. However, if necessary, the entire upper surface or a part of the upper surface is covered with a cover or the like to be closed. It doesn't matter. Further, the conveying speed of the OHP film F can be arbitrarily controlled by controlling the speed of the electric motor 30, but the conveying rollers 15a to 15e and 23a to 23 are provided.
c, the number of teeth of the sprockets attached to the transport rollers 26a to 26d, and the pitch of the chain meshed with the sprockets can also be changed easily. Further, the water in the water cleaning tank 8 may be made to flow by inserting new water while discharging old water. Also, OH
As a method (solvent applying means) for applying a solvent to dissolve characters, figures, etc. drawn with an oil-based ink on the surface of the P film F, in the above-described embodiment, the solvent is put in the solvent cleaning tank 7. Although the case of dipping and applying has been described, it is also possible to use a solution such as a guide roller 16, a pusher roller 17, a brush roller 18 or the like soaked with a solvent instead of dipping and applying and dissolving the solvent. There is no such thing. Further, although the case where thinner is used as the solvent has been described, this may be other than thinner as long as it is a solvent that can dissolve and remove only the oil-based ink without adversely affecting the OHP film F. There is no such thing.

[0028]

As described above, according to the present invention,
The oil-based ink drawn on the OHP film can be dissolved and removed, and then a series of operations from washing to water and then drying can be automated, which improves workability and improves the reproduction quality. Can be expected to be effective.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional side view taken along the line AA of FIG.

FIG. 2 is a plan view of an OHP film reproducing device shown as an embodiment of the present invention.

[Explanation of symbols]

 FOHP film 1 playback device 2 housing 7 solvent cleaning tank (first process section) 8 water cleaning tank (second process section) 9 draining / drying tank (third process section) 15a to 15e transport rollers (first) Conveying roller means) 18 Brush rollers 23a to 23c Conveying rollers (second conveying roller means) 26a to 26d Conveying rollers (third conveying roller means) 33 Fans (dryer means)

Claims (2)

[Claims] 1. A first transport roller means for transporting an OHP film on which characters, figures, etc. are drawn with an oil-based ink, and a solvent is applied to the surface of the OHP film being transported to carry out the ink. A solvent applying means for dissolving the ink, and a brush roller that is rotated at a speed different from the rotation speed of the conveying roller to rub the surface of the OHP film after the solvent is applied to remove the ink.
And a second transport roller unit for transporting the OHP film that has passed through the first process unit, and a unit for washing the OHP film transported by the second transport roller unit with water. A second process part having a third transport roller for transporting the OHP film that has passed through the second process part, and a surface of the OHP film being transported by the third transport roller means. A third process section having a drying means for blowing air to dry and finish, and an OHP film reproducing apparatus. 2. An OHP film on which characters and figures are drawn with oil-based ink is conveyed by a conveying roller, and a solvent is applied to the surface of the conveyed OHP film on which the characters and figures are drawn. To melt the ink, and then remove the ink while rubbing the surface with a brush roller having a rotation speed different from that of the transport roller, and a roller for removing the OHP film after the first step. Transport and wash the OHP film with water during the transport
And the OHP film that has been subjected to the second step is conveyed by rollers, and during the conveyance, air is blown to drain water and perform a third finish for drying and finishing. The method of reproducing OHP film.