JPH08173927A - Dust remover for sheet material - Google Patents

Abstract

PURPOSE: To remove creases in a sheet material and prevent a printed layer from peeling off by arranging a dust removing roller whose surface comes into contact with one surface of the sheet material, a roller whose surface comes into contact with the other surface likewise, and a cleaning roller which comes into contact linearly with the outer peripheral surface of the dust removing roller. CONSTITUTION: Each dust removing roller 4, 5 and each bracing roller 1 to 3 are set in such a positional relation ship that their surfaces come into contact with the mutually opposite surfaces of a sheet material 6. Therefore, the sheet material 6 which is transported while maintaining tension draws a curve. Consequently, dust can be removed from the sheet material 6 by allowing each dust removing roller 4, 5 to come into contact closely with the sheet material 6. In addition, the sheet material 6 is pressed to each dust removing roller 4, 5 only by tension, so that the sliding of the sheet material 6 is set free, and thus it is possible to remove creases in the sheet material 6 and prevent a printed layer from peeling off. Further, dust can be removed from the outer peripheral surface of each dust removing roller 4, 5 because each cleaning roller 18, 19 is kept in contact linearly with the outer peripheral surface of each dust removing roller 4, 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing device for sheet material, which removes dust and dirt adhering to one surface of the sheet material.

[0002]

2. Description of the Related Art When printing on paper, cloth, etc., or when printing photographic film, static electricity may cause dust and dirt to adhere to the surface of these sheet materials. Otherwise, the finish will be poor unless printing is performed.

Therefore, conventionally, as shown in Japanese Utility Model Laid-Open No. 62-1795, at least a pair of rollers 46 and 47 are provided so that their outer peripheral surfaces are in contact with each other via the sheet material 6, and one of the rollers 47 is used. The outer peripheral surface of the sheet is made to be a dust removing roller, and the sheet material 6 is passed between the paired rollers 46 and 47, so that dust and dirt attached to the surface of the sheet material 6 is made to adhere to the dust removing roller. There was a dust remover for sheet materials that could be removed by force. In addition, in order to prevent dust and the like from accumulating on the surface of the dust removing roller due to long-term use and weakening the adhesion,
As shown in Japanese Patent Laid-Open No. 70-70, a cleaning roller 48, which has a stronger adhesive force than the dust removing roller and is used for removing dirt on the surface of the dust removing roller, has its outer peripheral surface in contact with a part of the outer peripheral surface of the dust removing roller. Some were provided (see FIG. 15).

[0004]

However, in the conventional dust removing device for sheet material, the sheet material 6 can be strongly adhered to the dust removing roller by passing the sheet material 6 between the rollers 46 and 47. The following problems occur.

That is, since the sheet material 6 is completely sandwiched between at least the pair of rollers 46 and 47,
The sheet material 6 loses the freedom of sliding on the roller surface,
As a result, the sheet material 6 is twisted due to a slight difference in position and angle from the front and rear roller pairs, and when the sheet material 6 passes between the pair of rollers 46 and 47, it is crushed and becomes wrinkles 49 ( (See FIG. 16). In addition, if the sheet material has already been printed once, peeling or cracking of the printed layer applied to the sheet material will occur even if wrinkles do not occur when twisting occurs.

Therefore, it is an object of the present invention that when the sheet material is passed through the apparatus, the sheet material may be wrinkled, or the printed layer applied to the sheet material may be peeled off or cracked. It is to provide a dust remover for sheet materials that can be prevented.

[0007]

In order to achieve the above object, the sheet material dust removing apparatus of the present invention is in surface contact with one surface of a sheet material conveyed while maintaining tension in the apparatus, and its outer peripheral surface is adhered. At least one dust removing roller, and a plurality of tension rollers arranged at a distance from the dust removing roller before and after each dust removing roller in the sheet material conveying direction and having an outer peripheral surface in surface contact with the other surface of the sheet material. The cleaning roller is configured to be in line contact with the outer peripheral surface of the dust removing roller without coming into contact with the sheet material, and at least one cleaning roller having an outer peripheral surface having stronger adhesiveness than the dust removing roller.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the sheet material dust removing apparatus of the present invention shown in the drawings will be described below. In this embodiment, three tension rollers 1, 2, 3 and tension roller 1,
A sheet having two dust-removing rollers 4 and 5 spaced apart from each other and having the lowermost ends of the tensioning rollers 1, 2 and 3 located below the uppermost ends of the dust-removing rollers 4 and 5. The material dust remover is taken as an example (see FIGS. 1 and 2).

The outer peripheral surfaces of the dust removing rollers 4 and 5 are adhesive. In order to make the outer surfaces of the dust removing rollers 4, 5 sticky, use an elastic material having adhesiveness as the material of the body forming the dust removing rollers 4, 5 or the material of the outer peripheral material wound around the outer periphery of the body. Good. Examples of the elastic material having such adhesiveness include butyl rubber and organopolysiloxane elastomer. In addition, an adhesive tape may be used as the material of the outer peripheral material wound around the outer periphery of the body. The sheet material 6 is conveyed above the dust removing rollers 4 and 5 while maintaining tension, and the lower surface of the sheet material 6 comes into surface contact with the outer peripheral surfaces of the dust removing rollers 4 and 5. The function of the dust removing rollers 4 and 5 is to transfer and remove dust and dirt from the lower surface of the sheet material 6 due to its adhesiveness.

The tension rollers 1, 2 and 3 are mirror-finished on the outer circumference of the body or surface-treated with a fluororesin or a silicone resin, and the outer circumferences thereof are not adhesive. The sheet material 6 is conveyed below the tension rollers 1, 2 and 3, and the upper surface of the sheet material 6 comes into surface contact with the outer peripheral surfaces of the tension rollers 1, 2, and 3. The work of the tension rollers 1, 2 and 3 removes dust and dirt from the sheet material 6 without causing the sheet material 6 to wrinkle or peel off or crack the printed layer applied to the sheet material 6. To do. That is, due to the positional relationship in which the dust-removing rollers 4 and 5 and the tensioning rollers 1, 2 and 3 are in surface contact with mutually opposite surfaces of the sheet material 6, the sheet material 6 conveyed while maintaining tension is
Curves are drawn from the tension roller 1 to the tension roller 2 via the dust removing roller 4 and from the tension roller 2 to the tension roller 3 via the dust removing roller 5. Therefore, the combined force of the tension applied to the sheet material 6 at the contact portions with the dust removing rollers 4 and 5 acts on the shaft side of the dust removing rollers 4 and 5. Therefore, even if the sheet material 6 is not passed between the pair of rollers, sufficient adhesion between the dust removing rollers 4 and 5 and the sheet material 6 can be obtained, and dust and dirt can be removed from the sheet material 6.

Further, since the sheet material 6 is pressed against the dust removing rollers 4, 5 only by the tension, the freedom of sliding of the sheet material 6 on the surfaces of the dust removing rollers 4, 5 is secured, and the dust removing rollers 4, 5 are secured. The sheet material 6 will not be twisted due to a slight difference in position or angle, and may be wrinkled.
The printed layer applied to the sheet material does not come off or crack (see FIG. 3).

Both axial ends of the five rollers are rotatably supported by the lower ends of a pair of rods suspended in the support frame 7. Of these 10 rods, the rod 8 that supports the dust removing rollers 4 and 5 and the rod 9 that supports the tension rollers 1, 2 and 3 differ in the way of hanging, as will be described later.

The support frame 7 includes a top plate 10 and a bottom plate 11 which are parallel to each other in the vertical direction and four columns 12 each having four corners.
The upper and lower plates 13 are arranged in parallel with the top plate 10 between the top plate 10 and the rollers 1 to 5, and are connected to the tip of an air cylinder 14 provided at the center of the top plate 10. Is configured to.

Each rod 9 supporting the tension rollers 1, 2 and 3 penetrates the elevating plate 13 and the top plate 10. Each rod 9 is fixed to the elevating plate 13. Therefore, the tension rollers 1, 2, and 3 supported by the rod 9 are lowered by the expansion of the axis of the air cylinder 14, and are raised by the contraction of the axis of the air cylinder 14. As shown in FIG. 4, when the tension rollers 1, 2, 3 are raised, a wide space is formed between the surface connecting the lower ends of the tension rollers 1, 2, 3 and the surface connecting the upper ends of the dust removing rollers 4, 5. Thus, the work becomes easy when setting the sheet material 6 between the rolls 1 to 5. To make the rod 9 penetrate to the top plate 10,
This is because the deflection of the rod 9 is reduced and the mechanical strength is increased. A linear bush 15 is provided in the hole of the top plate 10 through which the rod 9 penetrates, so that the rod 9 can be smoothly moved up and down.

Each rod 8 supporting the dust removing rollers 4 and 5
Penetrates the elevating plate 13 and its upper end is connected to the tip of an air cylinder 16 provided at the end of the top plate 10. Therefore, the dust-removing rollers 4 and 5 supported by the rod 8 move down as the shaft of the air cylinder 16 extends, and rise as the shaft of the air cylinder 16 contracts. A linear bush 17 is provided in a hole through which the rod 8 of the elevating plate 13 penetrates, so that the rod 8 can be smoothly moved up and down.

Below the dust removing rollers 4 and 5, the cleaning rollers 18 and 19 are not in contact with the sheet material 6 but are in line contact with the outer peripheral surfaces of the dust removing rollers 4 and 5. Further, the outer peripheral surfaces of the cleaning rollers 18, 19 are dust removing rollers 4, 5
It has stronger adhesive strength. Cleaning roller 1
In order to make the outer peripheral surfaces of 8 and 19 sticky, the elastic material of the dust removing rollers 4 and 5 is used as the material of the body forming the cleaning rollers 18 and 19 or the material of the outer peripheral material wound around the outer periphery of the body. An elastic material having a strong adhesive force may be used. Therefore, while removing dust on the lower surface of the sheet material 6 by the dust removing rollers 4 and 5, dust and the like attached to the outer peripheral surfaces of the dust removing rollers 4 and 5 are cleaned.
It is possible to transfer the dust removing rollers 4 and 5 to the outer peripheral surfaces of the dust removing rollers 4 and 5 and keep them clean.

In addition, when the cleaning rollers 18 and 19 become dirty and the cleaning efficiency deteriorates, the cleaning rollers 18 and 19 are separated from the dust removing rollers 4 and 5, and then the cleaning rollers 18 and 19 are separated.
Wash 19 with a suitable detergent. In this example,
Both ends of each of the cleaning rollers 18 and 19 in the axial direction are rotatably supported by a support member 20 including a pair of side plates and a bottom plate. The support member 20 is fixed on the bottom plate 11 of the support frame 7. It is mounted on the mounting table 21. Therefore, the cleaning rollers 18, 19
5 is removed from the sheet material dust removing device, first, as shown in FIG. 5, the dust removing rollers 4 and 5 are raised to be separated from the cleaning rollers 18 and 19, and then the stainless handle attached to the outside of the side plate of the supporting member 20. It suffices to grasp 22 and slide it on the mounting table 21 to pull it out.

The support member 20 is provided on the surface of the mounting table 21.
A guide groove is provided in accordance with the width of the bottom plate of the support member 20 so that the cleaning rollers 18 and 19 are not displaced in the direction in which they are aligned. A ball plunger 23 is embedded at a predetermined position in the guide groove of the mounting table 21, and the ball plunger 2 is provided on the back surface of the bottom plate of the support member 20.
A ball escape portion 50 is provided (see FIG. 6). Therefore, the support member 20 that supports the cleaning rollers 18 and 19 is fixed by the fitting into the guide groove of the mounting table 21 and the ball plunger 23 except when the support member 20 is removed from the sheet material dust removing device. .

The cleaning rollers 18 and 19 are
It is not always necessary to install the dust removing rollers 4 and 5 during dust removal on the lower surface of the sheet material 6, and the dust removing rollers 4 and 5 may be provided only when they are soiled. This is because if the dust removing rollers 4 and 5 are not so dirty, the dust removing efficiency of the dust removing rollers 4 and 5 does not decrease even if the cleaning rollers 18 and 19 are removed.

The sheet material dust removing device of the present invention is
The invention is not limited to the above embodiment.

For example, in the above embodiment, both axial ends of the rollers 1 to 5 are rotatably supported by the lower ends of rods suspended in the support frame 7.
As shown in FIG. 5, both axial ends of the rollers 1 to 5 may be rotatably supported by the side support plate 24.

Further, tension rollers are arranged in front of and behind each of the dust removing rollers in the conveying direction of the sheet material 6 with a distance from the dust removing roller, and one surface of the sheet material 6 conveyed while maintaining tension in the apparatus and the dust removing roller. If the outer peripheral surface of the sheet material is in surface contact and the other surface of the sheet material 6 is in surface contact with the outer surface of the tension roller, the positional relationship and number of the dust removing roller and the tension roller can be freely set. Also, the cleaning roller
If the sheet material 6 is not in contact with and is in line contact with the outer peripheral surface of the dust removing roller, the positional relationship with other rollers and the number thereof can be freely set. A specific example will be described below.

In the embodiment based on FIG. 1, the dust removing rollers 4 and 5 are arranged on the upper side and the cleaning rollers 18 and 19 are arranged on the lower side. For example, the dust removing roller 26 and the cleaning roller 27 are arranged on the left and right sides. (See Figure 8a). Further, the cleaning roller 27 may be arranged on the upper side and the dust removing roller 26 on the lower side (see FIG. 8b), or the dust removing roller 26 and the cleaning roller 27 may be arranged obliquely (see FIG. 8c). In addition, 25 in FIG. 8 has shown the tension roller.

Further, in the embodiment based on FIG. 1, the roller group consisting of the dust removing roller 4 and the cleaning roller 18 and the roller group consisting of the dust removing roller 5 and the cleaning roller 19 are linearly arranged side by side. Although the tension rollers 1, 2 and 3 are also arranged linearly, for example, a plurality of sets of roller groups including the dust removing roller 26 and the cleaning roller 27 may be arranged so as to be vertically displaced from each other ( See Figure 9a). Alternatively, a plurality of roller groups may be arranged so that the dust removing roller 26 side is on the inside (FIG. 9b).
Alternatively, a plurality of roller groups may be arranged so that the cleaning roller 27 side is on the inside (FIG. 9).
c)). The numeral 25 in FIG. 9 indicates a tension roller.

Further, in the embodiment based on FIG. 1, the tension roller 2 between the roller group consisting of the dust removing roller 4 and the cleaning roller 18 and the roller group consisting of the dust removing roller 5 and the cleaning roller 19 is both rollers. Although it is shared by the group, it may not be shared as shown in FIG. In FIG. 10, 25 is a tension roller, 26 is a dust removing roller,
27 indicates a cleaning roller.

Further, it is not always necessary to make the number of the cleaning rollers correspond to the dust removing rollers one to one. For example, if dust and dirt can be transferred from the dust removing rollers, one cleaning roller 27 may be provided so as to contact the plurality of dust removing rollers 26 (FIG. 1).
1). Conversely, a plurality of cleaning rollers 27 may be provided so as to contact one dust removing roller 26 (see FIG. 12). In addition, 25 in FIGS. 11 and 12 indicates a tension roller.

Next, as an example of use of the present invention, a case where the sheet material dust removing device 28 of the present invention is incorporated into a simultaneous molding and painting device for use will be described (see FIG. 13).

The simultaneous molding and painting apparatus injects a molten resin with a film provided with a pattern placed in a mold,
It is a device for painting at the same time as molding, and in general,
It is composed of an injection molding die 29, a film feeding device 30, and a film winding device 31.

The injection molding die 29 comprises a movable die 32 and a fixed die 33, and the fixed die 33 is provided with an injection port 34 for injecting a molten resin.

The film feeding device 30 comprises a movable mold 3
2, the delivery roller 35 and the guide roller 36 are rotatably supported in the casing 37 of the film delivery apparatus 30. The roll-shaped film for simultaneous painting 38 wound around the outer circumference of the delivery roller 35 is delivered from the delivery roller 35, and then passes through the guide roller 36 to move the movable die 32.
Is supplied to the parting surface of. Further, the feed roller 35 operates so as to stop the rotation when fed by a predetermined pitch. As the film 38 for simultaneous painting with molding,
A transfer material that completely peels the film from the molded product after painting or a decorative film in which the film partially remains in the molded product after painting is used.

The film winding device 31 is swingably arranged downstream of the movable mold 32, and the winding roller 39, the driving roller 40 and the pressure contact roller 41 are rotatably supported by the casing 42 of the film winding device 31. Has been done. A pulse motor is connected to the rotary shaft of the drive roller 40 via a coupling, and the drive roller 40 is driven by driving the pulse motor. The drive roller 40 sends the used film sandwiched between the drive roller 40 and the pressure contact roller 41 to the take-up roller 39 side. Take-up roller 39
A belt is wound around the drive roller 40, and the winding roller 39 is also rotated by the drive of the drive roller 40 to wind up the used film.

A simultaneous molding / painting method using the simultaneous molding / painting apparatus having the above structure is as follows.

First, the film for simultaneous painting 38 is accurately positioned with respect to the parting surface of the movable mold 32 by the film feeding device 30. Next, the surface opposite to the surface on which the pattern is formed is the movable mold 32 side,
By heating or drawing a vacuum, the film 38 for simultaneous painting is formed along the surface of the cavity, and the injection molding die 29 is closed. After that, molten resin is injected from the injection port 34, and painting is performed simultaneously with molding. After the molding is completed, the molded product with a picture is taken out from the mold, and finally, the used film is wound around the winding roller 39 by the film winding device 31.

By the way, since the conventional molding simultaneous painting device is not equipped with the dust removing device for the sheet material, there are the following problems. That is, the surface of the simultaneous-imaging-painting film 38 is likely to have dust and dirt around it adhered to it by static electricity.
It is transferred to and adheres to the cavity surface. Therefore, dust and dirt 44 is generated through the thickness of the simultaneous painting film 38.
As a result, a concave scratch 45 appeared on the surface of the molded product 43, and a defective product of 10 to 15% was generated (see FIG. 14).

Sheet material dust removing device 28 shown in FIG.
In the example of use, before the sheet is supplied to the parting surface of the movable mold 32, the dust removing device for sheet material 28 can remove dust on the surface opposite to the surface on which the pattern of the simultaneous molding film 38 is formed. The defective product rate can be suppressed to 3 to 5%.

[0036]

The sheet material dust removing apparatus of the present invention, having the above-mentioned structure, has the following operation.

That is, since the dust removing roller and the tension rollers arranged before and after the sheet material conveying direction are in surface contact with the opposite surfaces of the sheet material, they are conveyed while maintaining tension. The sheet material to be drawn draws a curve between the tension roller, the dust removing roller and the next tension roller. Therefore, the combined force of the tension applied to the sheet material at the contact portion with the dust removing roller acts on the shaft side of the dust removing roller.

Further, since the sheet material is pressed against the dust removing roller only by the tension, the degree of freedom of sliding of the sheet material on the roller surface is secured, and the sheet material is not twisted.

[0039]

Since the dust removing device for sheet material of the present invention has the above-mentioned structure and operation, it has the following effects.

That is, since the synthetic force of the tension applied to the sheet material at the contact portion with the dust removing roller acts on the shaft side of the dust removing roller, the dust removing roller and the sheet material do not need to pass through between the pair of rollers. It is possible to obtain sufficient adhesion and to remove dust and dirt from the sheet material.

Moreover, since the sheet material is not twisted, the sheet material does not wrinkle, nor does the printed layer applied to the sheet material peel off or crack.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a sheet material dust removing apparatus of the present invention.

2 is a line AA and B of the dust remover for sheet material of FIG.
It is a B sectional view.

FIG. 3 is a view showing a state of a sheet material in the sheet material dust removing device of FIG. 1.

FIG. 4 is a view showing a state where a tension roller of the sheet material dust removing device of FIG. 1 is raised.

FIG. 5 is a diagram showing replacement of a cleaning roller of the sheet material dust removing device of FIG. 1.

FIG. 6 is a diagram showing a fixed state of a support member supporting a cleaning roller on a mounting table.

FIG. 7 is a diagram showing another example of the sheet material dust removing apparatus of the present invention.

FIG. 8 is a view showing another embodiment of the sheet material dust removing device of the present invention.

FIG. 9 is a diagram showing another example of the sheet material dust removing apparatus of the present invention.

FIG. 10 is a diagram showing another example of the sheet material dust removing apparatus of the present invention.

FIG. 11 is a diagram showing another example of the sheet material dust removing apparatus of the present invention.

FIG. 12 is a diagram showing another example of the sheet material dust removing apparatus of the present invention.

FIG. 13 is a view showing a simultaneous painting device for molding using the dust remover for sheet materials of the present invention.

FIG. 14 is a diagram showing a decorative molded product obtained by a simultaneous molding decorative device that does not use a sheet material dust removing device.

FIG. 15 is a view showing a conventional dust remover for sheet materials.

16 is a diagram showing a state of the sheet material in the sheet material dust removing apparatus of FIG.

[Explanation of symbols]

 1 Tension Roller 2 Tension Roller 3 Tension Roller 4 Dust Removal Roller 5 Dust Removal Roller 6 Sheet Material 7 Support Frame 8 Rod 9 Rod 10 Top Plate 11 Bottom Plate 12 Strut 13 Elevation Plate 14 Air Cylinder 15 Linear Bushing 16 Air Cylinder 17 Linear Bushing 18 Cleaning roller 19 Cleaning roller 20 Support member 21 Placement table 22 Handle 23 Ball plunger 24 Side support plate 25 Tension roller 26 Dust removal roller 27 Cleaning roller 28 Sheet material dust removal device 29 Injection molding die 30 Film feeding device 31 Film winding Device 32 Movable mold 33 Fixed mold 34 Injection port 35 Sending roller 36 Guide roller 37 Casing 38 Film for simultaneous painting with molding 39 Winding roller 40 Drive low 41 the pressure roller 42 casing 43 molded article 44 dust 45 concave scratches 46 roller 47 roller 48 cleaning roller 49 wrinkles 50 escape portion

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[Procedure amendment]

[Submission date] September 13, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

The support frame 7 includes a top plate 10 and a bottom plate 11 which are parallel to each other in the vertical direction and four columns 12 each having four corners.
And an elevating plate 13 is arranged between the top plate 10 and the rollers 1 to 5 in parallel with the top plate 10. The elevating plate 13 is an axis of an air cylinder 14 provided at the center of the top plate 10. It is configured to be connected first.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

FIG. 7 is a diagram showing another embodiment of the sheet material dust removing device of the present invention.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] Figure 8

[Correction method] Change

[Correction content]

FIG. 8 is a diagram showing another embodiment of the sheet material dust removing apparatus of the present invention.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] Figure 9

[Correction method] Change

[Correction content]

FIG. 9 is a diagram showing another embodiment of the sheet material dust removing device of the present invention.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 10

[Correction method] Change

[Correction content]

FIG. 10 is a diagram showing another embodiment of the sheet material dust removing device of the present invention.

[Procedure correction 6]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

FIG. 11 is a view showing another embodiment of the sheet material dust removing device of the present invention.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 12

[Correction method] Change

[Correction content]

FIG. 12 is a diagram showing another embodiment of the sheet material dust removing device of the present invention.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] Explanation of code

[Correction method] Change

[Correction content]

[Explanation of symbols] 1 tension roller 2 tension roller 3 tension roller 4 dust removal roller 5 dust removal roller 6 sheet material 7 support frame 8 rod 9 rod 10 top plate 11 bottom plate 12 strut 13 lifting plate 14 air cylinder 15 linear bush 16 air Cylinder 17 Linear bushing 18 Cleaning roller 19 Cleaning roller 20 Supporting member 21 Mounting table 22 Handle 23 Ball plunger 24 Side support plate 25 Tensioning roller 26 Dust removal roller 27 Cleaning roller 28 Sheet material dust removing device 29 Injection molding die 30 Film feeding Device 31 Film winding device 32 Movable mold 33 Fixed mold 34 Injection port 35 Feeding roller 36 Guide roller 37 Casing 38 Simultaneous molding film 39 Winding roll 40 drive roller 41 pressed against roller 42 casing 43 molded article 44 dust 45 concave scratches 46 roller 47 roller 48 cleaning roller 49 wrinkles 50 escape portion

[Procedure Amendment 9]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

FIG. 11

Claims (1)

[Claims] 1. At least one dust removing roller which is in surface contact with one surface of a sheet material conveyed while maintaining tension in the apparatus and has an outer peripheral surface having an adhesive property, and before and after each dust removing roller in the sheet material conveying direction. A plurality of tension rollers that are spaced apart from the dust removal roller and whose outer peripheral surface makes surface contact with the other surface of the sheet material, and line contact with the outer peripheral surface of the dust removal roller without making contact with the sheet material and outer peripheral surface removing dust. A dust remover for sheet material, comprising at least one cleaning roller having a stronger adhesiveness than the roller.