JPH07112170A - Dust removing device - Google Patents

Abstract

PURPOSE:To perfectly remove dust stuck to a surface of a work. CONSTITUTION:Respective one pair dust removing rolls 21A, 21B corresponding by holding the work W are provided in the upper and lower places in a carrying region of the work W, and stripping belts 34, 34 are respectively provided at both sides of the work W. The dust stuck to both surfaces of the work W is transferred to a dust removing tacky surface 27 on the dust removing roll by its tacky power and removed. The dust transferred to the dust removing roll is transferred to a stripping tacky surface 40 on the stripping belt 34 with the tacky power and removed, and the tacky capacity of the dust collecting roll is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing apparatus which has an improved method for removing dust adhering to the surface of a film-shaped work such as a long film.

[0002]

2. Description of the Related Art The following is known as a dust removing device for removing dust adhering to the surface of a film-shaped work such as a long film. This is because a rotating brush is provided in the passage area of the work conveyed in one direction while being stretched between the rolls, and a dust suction duct connected to the suction side of the dust collecting fan device is provided. By rubbing the surface, dust can be removed from the work, and the removed dust is sucked into the dust suction duct together with air.

[0003]

However, even if the dust is removed as described above, not only the dust adhering to the surface of the work cannot be sufficiently removed, but also the work can be removed by the rotating brush. The fact is that some of the dust removed from the work may adhere to the work again without being sucked by the dust suction duct, and the dust cannot be completely removed from the surface of the work. An object of the present invention is to provide a dust removing device that can reliably remove dust attached to the surface of a work.

[0004]

DISCLOSURE OF THE INVENTION A dust remover according to the present invention is a dust remover in which a film-like work conveyed in one direction passes through and rolls by contacting the work with an adhesive surface for dust removal on the outer circumference. It is characterized in that it is composed of a roll and a peeling belt that runs with the peeling adhesive surface in contact with the dust removing adhesive surface of the dust removing roll.

A dust removing apparatus according to a second aspect of the present invention is characterized in that, in the first aspect, a cleaning mechanism for cleaning the peeling adhesive surface of the peeling belt is provided.

According to a third aspect of the present invention, in the dust remover according to the first aspect or the second aspect, the dust removing rolls are provided at two positions on the same surface side of the workpiece with a space therebetween in the passage direction thereof.
A configuration in which the dust removing rolls at these two locations are alternately displaced between a position where the dust removing roll is separated from the peeling belt and comes into contact with the work and rolls, and a position where the dust separating roll is separated from the work and comes into contact with the peeling belt to roll. There is a feature in that.

A dust removing device according to a fourth aspect is characterized in that, in any one of the first to third aspects, the dust removing roll and the peeling belt are provided on both sides of the work. is there.

A dust removing apparatus according to a fifth aspect of the present invention is characterized in that, in the fourth aspect, the positions of the dust removing rolls on both sides of the workpiece sandwiching the workpiece are displaced in the passage direction of the workpiece.

[0009]

In the dust remover of the present invention, while the work is being conveyed, the dust removing adhesive surface on the outer periphery of the rolling dust removing roll is in contact with the surface of the work and adheres to the surface of the work. Dust is transferred to the dust removing roll by the adhesive force of the dust removing adhesive surface and removed from the work. Also, the dust-removing adhesive surface of the dust-removing roll comes into contact with the peeling adhesive surface of the traveling peeling belt, and the dust transferred from the work surface to the dust-removing adhesive surface has the adhesive force of the peeling adhesive surface. Are transferred to a peeling belt and removed from the dust removing roll. As a result, the adhesive force of the dust removing roll is restored and the dust removing performance is maintained.

In the dust removing device according to the second aspect, the dust transferred to the peeling adhesive surface of the peeling belt is removed from the peeling adhesive surface by the cleaning mechanism. As a result, the adhesive strength of the peeling belt, that is, the dust removing ability is restored.

In the dust removing device according to the third aspect, one of the dust removing rolls is always in contact with the surface of the work and rolls, and the dust removing roll adheres to the surface of the work by the adhesive force of the dust removing adhesive surface. The dust is removed and transferred to the dust removal roll. During this period, the dust removing roll which is separated from the work and is in contact with the peeling belt removes the dust transferred from the surface of the work by the adhesive force of the adhesive surface for peeling, and this is further transferred to the peeling belt. As a result, the adhesive force of the dust removing roll is restored and the dust removing performance is maintained.

In the dust removing device according to the fourth aspect of the present invention, the dust removing rolls are brought into contact with both sides of the work and roll, and the dust adhering to both sides of the work is transferred to and removed by the dust removing rolls. Further, when the peeling belt comes into contact with the dust removing adhesive surface of the dust removing roll, the dust transferred from the work surface to the dust removing adhesive surface is transferred to the peeling belt, and the adhesive force of the dust removing roll is restored.

In the dust removing apparatus according to the fifth aspect of the present invention, since the positions of the dust removing rolls provided on both sides of the work are displaced in the passage direction of the work, the dust removing roll does not pinch both sides of the work.

[0014]

As described above, according to the dust removing apparatus of the present invention, the dust on the surface of the work is not scraped off and sucked together with the air, but is directly transferred to the dust removing roll by the adhesive force. In addition, by removing the dust transferred to the dust removing roll by the peeling belt, the adhesive ability of the dust removing roll is restored, so that the dust on the work surface is completely removed, and It has an excellent effect that the dust removing performance can be continued for a long period of time.

According to the second aspect of the present invention, since the dust removing capability of the peeling belt is restored by the cleaning mechanism, it is not necessary to replace the peeling belt for a long period of time, and, as a result,
Replacing the dust removing roll is also unnecessary for a long period of time.

According to the third aspect of the present invention, one of the dust removing rolls always comes into contact with the workpiece to remove dust, and the dust removing ability of the dust removing roll is restored by the peeling belt. Can be done by

According to the invention of claim 4, since the dust removing roll and the peeling belt are provided on both sides of the work,
Both sides of the work can be removed simultaneously.

According to the fifth aspect of the invention, since the dust removing roll does not press the work, the work is wrinkled and the dust in the wrinkles remains without being removed. Can be prevented.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment embodying the present invention will be described below with reference to FIGS. Figure 1 shows the overall configuration
As shown in FIG. 3, a long film-shaped conveyance path for the work W is provided in the housing 100, and the dust removal mechanism 20, the peeling mechanism 30, and the cleaning mechanism 50 are provided in the passage area of the work W.
It has a structure with.

First, the transfer path of the work W will be described.
The work W is wound around a lower turning roll 10 and an upper turning roll 11 supported inside the housing 100, and horizontally moves into the housing 100 from the lower right surface of the housing 100 in FIG. 1 by a drive mechanism (not shown). The lower turning roll 10 turns vertically upward, the upper turning roll 10 turns horizontally leftward, and the upper turning face of the housing 100 exits from the upper left surface.

Next, the dust removing mechanism 20 will be described. Two dust removing mechanisms 20 are provided on both sides of the work W in the passage region where the work W travels upward between the upper and lower turning rolls 10 and 11 with the work W interposed therebetween. Each dust removal mechanism 20
Dust removal roll 2 supported vertically and spaced apart vertically
It is composed of 1A and 21B. 4 of both dust removing mechanisms 20
Of the two dust removing rolls 21, the upper two upper dust removing rolls 21A, 21A and the lower two lower dust removing rolls 21
B and 21B correspond to each other at the same height.

As shown in FIG. 2, each dust removing roll 21 is
Bosses 23 are fitted on both ends of the cylindrical support 22, and a pivot 25 is attached to the boss 23 via a bearing 24. A urethane rubber plate 26 is wound around the outer peripheral surface of the cylindrical support 22. ing. Urethane rubber plate 2
6 has a chemical structure represented by polyurethane and has a specific gravity of 1.00 to 1.30. Urethane rubber plate 2
The surface of No. 6 has adhesiveness, and from the viewpoint of removing the adhesion of dust, the hardness of the urethane rubber plate 26 is preferably 10 to 30 °. In this embodiment, the hardness of 30 ° is used. ing. Due to the adhesive performance of the urethane rubber plate 26, the outer peripheral surface of the dust removing roll 21 is a dust removing adhesive surface 27.

Next, the support structure of the dust removing roll 21 will be described. A tip end of a piston rod 29 that horizontally projects toward the work W of an air cylinder 28 fixed to the frame 101 is connected to both ends of the pivot 25 of each dust removing roll 21. When the piston rod 29 advances,
The dust removing roll 21 is displaced to a dust removing position where it comes into contact with the work W, and when the piston rod 29 retracts, the dust removing roll 21 is displaced to a cleaning position where it is separated from the work W. These four
The one dust removing roll 21 is displaced between the dust removing position and the cleaning position by interlocking with each other by controlling each air cylinder 28 by means described later.

Next, the peeling mechanism 30 will be described. The peeling mechanism 30 removes the dust transferred from the work W to the dust removing roll 21 in the dust removing mechanism 20 from the dust removing roll 21, and two pieces are provided on both sides of the work W in the passage area of the work W. Has been. The peeling mechanism 30 is
The peeling belt 34 has a structure in which an endless peeling belt 34 is stretched between a driving roll 32 supported at an upper position and driven by a motor 31 and a driven roll 33 supported below the driving roll 32. It circulates between both rolls 32 and 33. The driven roll 33 has its pivot 3
5 is connected to a downward piston rod 37 of an air cylinder 36 fixed to the frame 101, and can be moved up and down by driving the air cylinder 36 to adjust the tension of the peeling belt 34.

As shown in FIG. 3, the peeling belt 34 has a structure in which a belt-shaped adhesive material 39 made of a special adhesive elastomer is attached to the outer peripheral surface of a belt-shaped base material 38 for preventing elongation. The outer peripheral surface of 34 is an adhesive surface 40 for peeling. The adhesive force of the peeling sticky surface 40 is stronger than that of the dust removing sticky surface 27 of the dust removing roll 21, and when both the sticky surfaces 27 and 40 are in close contact with each other, the adhered matter on the dust removing sticky surface 27 has the peeling stickiness. It is adapted to be transferred to the surface 40. Further, the deposits on the peeling adhesive surface 40 can be easily removed by rubbing with water, whereby the adhesive performance of the peeling adhesive surface 40 is maintained.

Of the two straight running portions of the peeling belt 34 between the drive roll 32 and the driven roll 33, the portion near the work W corresponds to the dust removing roll 21.
In the straight line portion of the peeling belt 34, the dust removing roll 21 is separated from the peeling belt 34 in the dust removing position where the dust removing roll 21 contacts the work W, and the dust removing roll 21 is separated from the work W. The dust removing roll 21 comes into contact with the peeling adhesive surface 40 of the peeling belt 34 and rolls when it is in the separated cleaning position.

Next, the cleaning mechanism 50 will be described. The cleaning mechanism 50 includes a water washing tank 51, a rotating brush 52, and
It is composed of a drainer 55. Washing tank 51
A fixed amount of cleaning water 53, which is injected at a predetermined flow rate from a water injection port (not shown), is stored inside the driven roll 33.
The bottom of the is always soaked. Further, in the cleaning water 53, a rotary brush 52 having, for example, nylon naps is supported on the outer periphery and is rotationally driven by a motor (not shown).
The raised hair 2 is always in contact with the peeling adhesive surface 40 of the portion of the peeling belt 34 which is wound around the driven roll 33. The washing water 53 flowing out from the washing tank 51
It is desirable that a filter be provided in the drainage route of No. 1 to filter the wash water 53 to prevent foreign matters in the wash water 53 from being run off.

The draining device 55 is a washing tank 51.
Is provided above. The draining device 55 is composed of a fixed draining roll 56 supported by the frame 101 and a movable draining roll 58 supported by a housing 57 so as to freely swing by an arm 57.
Is provided so as to sandwich the straight running portion of the peeling belt 34 on the side not corresponding to the dust removing roll 21 from both sides. As shown in FIG. 4, each of the rolls 56 and 58 is formed by mounting a cylindrical sponge 60 on the outer periphery of a core cylinder 59. The sponge 60 is made of polyvinyl alcohol, which is a hydrophilic polymer, as a raw material, and is made into an extremely fine particle. It has excellent water absorption and water retention capacity due to its continuous pores, and is made of a material having flexibility and abrasion resistance.

Next, the operation of this embodiment will be described. First, the work W with dust on both sides is conveyed, the two upper dust removing rolls 21A, 21A are advanced to the dust removing position, and the dust removing adhesive surfaces 27, 27 are brought into close contact with both sides of the work W so as to be sandwiched therebetween. With two lower dust removal rolls 2
1B and 21B are retracted to the cleaning position, the dust-removing adhesive surfaces 27, 27 are brought into close contact with the peeling adhesive surfaces 40, 40 of the peeling belts 34, 34, and the peeling belts 34, 34 are made to run. .

Then, while the work W passes upward between the lower turning roll 10 and the upper turning roll 11, both upper dust removing rolls 21A, 21A are moved by the adhesive force of the dust removing adhesive surfaces 27, 27. While rolling on the surface of W, the dust on the surface of the work W adheres to the dust removing adhesive surfaces 27, 2
It adheres to 7 and is removed by being moved to upper dust removing rolls 21A and 21A. This upper dust removal roll 21A
Is simultaneously performed on both sides of the work W, and the work W from which the dust has been removed exits the housing 100.

Various conditions such as the transport length of the work W, the estimated amount of dust adhering to the work W, the transport speed of the work W, that is, the rolling peripheral speed of the upper dust removing roll 21A, the area of the sticky surface 27 for dust removal, etc. When a switching time set in advance by a timer (not shown) has elapsed, the timer is activated and the two lower parts that were in the cleaning position before the adhesive force of the upper dust removing rolls 21A, 21A is significantly reduced. The dust removing rolls 21B, 21B advance to the dust removing position and come into close contact with both surfaces of the work W, and immediately thereafter, both upper dust removing rolls 21A, 21A.
Moves from the dust removal position to the cleaning position. Both lower dust removing rolls 21B and 21B that have advanced to the dust removing position are upper dust removing rolls 2
Dust is removed from both sides of the work W in the same manner as 1A and 21A, and the dust adhering to the surface of the work W is removed by the lower dust removal roll 21.
B, 21B are transferred to the dust-removing adhesive surface 27, 27.

While the dust removal by the lower dust removal rolls 21B, 21B is being performed, the upper dust removal rolls 21A, 21A retracted to the cleaning position run the peeling belts 34, 34.
Rolling while sticking to the peeling adhesive surfaces 40, 40 of
Adhesive surface 2 for dust removal of upper dust removal rolls 21A, 21A
Dust transferred from the work W on the peeling belts 7, 27 is removed by the peeling belt 3 due to the strong adhesive force of the peeling adhesive surfaces 40, 40.
4, 34, and by this, the dust removing ability of the upper dust removing rolls 21A, 21A is restored.

The peeling belt 34, from which dust has been transferred from the upper dust removing roll 21A, passes through the washing tank 51 of the washing mechanism 50 while being turned by the driven roll 33, and in the washing water 53, the peeling adhesiveness Surface 40 is rotating brush 5
The rubbing with 2 removes dust from the peeling belt 34.

After the dust is thus removed, the peeling belt 3
4 passes through the drainer 55. In the water draining device 55, the water adhering to the peeling belt 34 in the water washing device 50 is sandwiched between the fixed water draining roll 56 and the movable water draining roll 58 so that the water adheres to the peeling belt 34 in each water draining roll 5.
It is absorbed and removed by 6, 58.

By operating a timer (not shown), the upper dust removing rolls 21A, 21A advance from the cleaning position to the dust removing position in a state where the adhesive force is completely restored, and the dust removal of the work W is started again. Lower dust removal roll 21
B and 21B retreat to the cleaning position before the adhesive force is significantly reduced, and the dust transferred from the work W is removed by the peeling belt 3
It will be moved to 4,34.

As described above, the upper dust removing roll 21
By repeating the operation in which A and 21A and the lower dust removing rolls 21B and 21B alternately move up and down at regular intervals,
It is possible to continuously remove dust from the work W for a long time.

As described above, according to this embodiment, since the dust removing roll 21 rolls on the upper surface of the workpiece W, the dust on the upper surface of the workpiece W is completely removed by the adhesive force of the dust removing adhesive surface 27. be able to. Moreover, since the dust transferred to the dust removing roll 21 is removed by the peeling belt 34,
The adhesive ability of the dust removing roll 21 is maintained, and it is not necessary to replace the dust removing roll 21 for a long period of time.

Next, a second embodiment of the present invention will be described with reference to FIG. The dust removing device according to the second embodiment includes a dust removing roll 6
The configuration other than 1 is the same as that of the first embodiment. The dust removing roll 61 of this embodiment has two upper and lower parts on both sides of the work W.
They are provided one by one, but they correspond to each other with the work W in between.
One upper dust removing roll 61A, 61A and two lower dust removing rolls 61B, 6 corresponding to each other with the work W sandwiched therebetween.
1B is located at a height different from each other. In such a dust removing device, the two upper dust removing rolls 61A and 61A and the two lower dust removing rolls 61B and 61B alternately advance and retreat between the dust removing position and the cleaning position, and the dust removing roll 61 removes dust from the work W and the peeling belt 34. The cleaning of the dust removing roll 61 is continuously performed.

In the second embodiment, the dust removing roll 61
Is advanced to the dust removing position and comes into close contact with both sides of the work W, the work W is not pinched by the dust removing rolls 61, 61 from both sides thereof, and therefore, the clamping force of the dust removing rolls 61, 61 causes wrinkles on the surface of the work W. Therefore, it is possible to prevent the dust in the wrinkles from being left unremoved.

Next, a third embodiment of the present invention will be described with reference to FIG. The dust remover of the third embodiment removes dust from only one surface of the work W, and in the area where the work W passes between the upper and lower turning rolls 74 and 75, one side of the work W is removed. Two upper and lower dust removal rolls 71 corresponding to the surface
A, 71B, one peeling belt 73, and one cleaning mechanism 75 are provided. In this dust removing apparatus, the upper and lower dust removing rolls 71A and 71B alternately move back and forth between the dust removing position and the cleaning position, so that the dust removing roll 71 removes dust on one surface of the work W and the dust removing roll 71 from the work W.
The dust that has been transferred to is continuously removed.

The present invention is not limited to the embodiments described above and shown in the drawings, but the following modifications are possible.

(1) The material forming the dust-removing adhesive surface of the dust-removing roll is not limited to urethane rubber, but may be another adhesive material. When urethane rubber is used, it can be appropriately selected according to the material and size of dust adhering to the work.

(2) In the above embodiment, the dust removing roll is constructed by adhering the urethane rubber plate on the surface of the cylindrical support. However, the present invention is not limited to this. For example, the urethane rubber is directly attached to the outer periphery of the diameter portion formed on the shaft. May be provided.

(3) In the above embodiment, the two dust removing rolls are provided and alternately moved back and forth to continuously remove the dust from the work. However, the dust removing roll which is a constituent feature of the present invention is The number is not limited, 1
When the operation to remove the dust from the work using one dust removal roll and the operation to remove the dust from the dust removal roll with the peeling belt are performed at the same time, or the dust removal roll is extended in three or more steps along the conveyance direction of the work. It also includes the case where it is provided.

(4) In the above embodiment, the endless peeling belt is circulated for removal of dust adhering to the peeling roll for reuse. The belt is not limited to an endless belt, for example, when one long peeling belt wound around a drum is wound around another drum and is run one way, or between both drums while being washed with water. Including the case of traveling back and forth.

(5) In the above embodiment, the moisture of the peeling belt which has been wet by washing is removed by sandwiching it with a draining roll. In addition to this draining means, a drying means utilizing hot air blowing or the like is provided. You may do it.

(6) In the above embodiment, the dust removing roll is rotatably supported and rolls while being in contact with the work and the peeling belt by the adhesive force. You may make it rotationally drive according to the running speed of a belt.

Besides, the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be carried out without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view showing a first embodiment of the present invention.

FIG. 2 is a partial sectional view of a dust removing roll.

FIG. 3 is a sectional view of a peeling belt.

FIG. 4 is a sectional view of a draining roll.

FIG. 5 is a schematic sectional view of a second embodiment.

FIG. 6 is a schematic sectional view of a third embodiment.

[Explanation of symbols]

 W ... Work 21A ... Upper dust removing roll 21B ... Lower dust removing roll 27 ... Dust removing adhesive surface 34 ... Peeling belt 40 ... Peeling adhesive surface

Claims (5)

[Claims] 1. A dust removing roll that rolls by contacting an outer peripheral dust removing adhesive surface with a work in a region where a film-like work conveyed in one direction passes, and the dust removing adhesive property of the dust removing roll. A dust removing device comprising: a peeling belt that travels with a peeling adhesive surface in contact with the surface. 2. A cleaning mechanism for cleaning the adhesive surface for peeling of the peeling belt is provided.
The dust remover described in. 3. Dust removal rolls are provided at two locations on the same surface side of the work, spaced apart in the passage direction, and the dust removal rolls at these two locations are separated from the peeling belt and roll in contact with the work. The dust removing device according to claim 1 or 2, wherein the dust removing device is configured to be alternately displaced between a position and a position where the member separates from the work and comes into contact with the peeling belt and rolls. 4. The dust removing device according to claim 1, wherein the dust removing roll and the peeling belt are provided on both sides of the work. 5. The dust removing apparatus according to claim 4, wherein the positions of the dust removing rolls on both sides corresponding to each other with the work sandwiched therebetween are displaced in the passage direction of the work.