JP2007185640A - Foreign matter prevention device - Google Patents

Abstract

An object of the present invention is to prevent foreign matter from adhering to a product against dust generation from a bearing of a roller that conveys a belt-like flexible material or dust from the belt-like flexible material itself from an end of the belt-like flexible material. Provided is an apparatus for preventing foreign matter adhesion.
In a foreign matter adhesion prevention apparatus 10 for conveying a strip-shaped flexible material 12 by a plurality of rollers 14, 14, the strip-shaped flexible material 12 is transported in the vicinity of both end positions of the strip-shaped flexible material 12. A pair of partition plates 18 and 18 erected along the direction A and having a gap Z formed between the lower end thereof and the strip-shaped flexible material 12, and clean air is supplied between the pair of partition plates 18 and 18. And clean air supply means 16 for forming an air flow that is supplied and discharged from the gap Z.
[Selection] Figure 1

Description

  The present invention relates to a foreign matter adhesion preventing device that is provided in a transport line of an apparatus for forming or processing a strip-like flexible material such as a film or a thin plate-like metal, and suppresses foreign matter adhesion to the strip-like flexible material. The present invention also relates to a foreign matter adhesion preventing apparatus capable of suppressing foreign matter adhesion even when dust is generated from a strip-shaped flexible material.

  In recent years, when manufacturing products such as semiconductors and liquid crystal displays in the electronics industry, pharmaceutical packaging containers in the pharmaceutical field, filling containers in the food field, etc., it is formed while transporting band-like flexible materials such as films and thin metal sheets・ There are many steps to process. This forming / processing step is provided in a clean space using a clean room or a clean booth in order to ensure product quality and prevent foreign matter from entering.

  FIG. 5 is a perspective view showing a plurality of rollers 4, 4... That convey the belt-shaped flexible material 2 and the belt-shaped flexible material 2 in an apparatus for forming and processing the belt-shaped flexible material. An apparatus for forming and processing a strip-shaped flexible material is provided with a roll in which the strip-shaped flexible material 2 is wound on one or both of the raw material supply side and the product side in order to continuously produce products. While the formed material is conveyed by a plurality of arranged rollers 4, 4..., The material passes through a forming process and / or a processing process to finally become a product. In particular, in the processing step, various processing is performed depending on the product to be manufactured, such as chemical application to the surface of the belt-shaped flexible material, drying, washing, dipping, and laminating. Foreign matter contamination in these processes results in product defects (contact and insulation defects) in the electronic field, and in the pharmaceutical and food fields, regulatory obstacles occur due to guidelines such as GMP (Good Manufacturing Practice) and FDA (US Food and Drug Administration). .

  In clean rooms and clean booths that are used to prevent foreign matter contamination, clean air is supplied by the air flow from the HEPA filter outlet and the production space is made more pressurized than other rooms for foreign contamination. In order to prevent foreign substances such as dust from entering. Therefore, it is important how to prevent foreign matters from adhering to the belt-like flexible material conveyed through the forming / processing steps.

From such a background, Patent Document 1 discloses that a traveling film is continuously rubbed with an elastic body wetted with a liquid, and then sprayed onto the surface rubbed with the elastic body to adhere to the surface. There has been proposed a film dust removing device that can remove foreign matter, dust, dust, and the like.
JP 2001-38306 A

  However, in an apparatus for forming and processing a strip-shaped flexible material into a sheet shape, in order to continuously convey the strip-shaped flexible material, dust is generated from the bearings of a plurality of rollers 4, 4,. Dust (foreign matter) cannot be removed from dust generated from the strip-shaped flexible material itself by rubbing one end. Therefore, these dusts flow in the airflow blown out from the clean room or clean booth and flow toward the leeward suction port, but when there is a strip-like flexible material such as a film or a thin plate-like metal in the leeward Has the problem of adhering to the product as foreign matter.

  Moreover, the dust removal apparatus of patent document 1 removes foreign substances, such as the dust adhering to a film, from a film, and it is necessary to prevent a foreign substance from adhering as an essential solution. .

  The present invention has been made in view of such circumstances. From the roller-shaped bearing that conveys the belt-shaped flexible material, dust generation from the roller-shaped flexible material itself or the belt-shaped flexible material itself. An object of the present invention is to provide a foreign matter adhesion preventing device capable of suppressing foreign matter adhesion to a product against dust generation.

  In order to achieve the above object, the invention according to claim 1 is the foreign matter adhesion preventing apparatus in the transport line for transporting the belt-shaped flexible material with a plurality of rollers, and is located near both end positions of the belt-shaped flexible material. Clean air is supplied between the pair of partition plates that are erected along the conveyance direction of the strip-shaped flexible material and have a gap formed between the lower end thereof and the strip-shaped flexible material, and the pair of partition plates. And a clean air supply means for forming an air flow discharged from the gap.

  According to the first aspect of the present invention, the belt-like flexible material is erected in the vicinity of both ends of the belt-like flexible material along the conveyance direction of the belt-like flexible material, and a gap is formed between the lower end thereof and the belt-like flexible material. Since the cleaning air is provided between the pair of partition plates and the pair of partition plates to form an air flow that is supplied from the gap and discharged from the gap, the clean air supply unit is provided near the center of the strip-shaped flexible material. The supplied clean air is not diffused, an air flow is formed toward the strip-shaped flexible material, and is discharged from the gap between the left end portion or the right end portion of the strip-shaped flexible material and the partition plate. This clean air stream causes a pair of foreign matter such as dust generated from the roller bearing, or a pair of foreign matter such as dust generated from the strip flexible material itself due to rubbing during conveyance of the end of the strip flexible material. There is no intrusion between the partition plates. Therefore, when the vicinity of both end positions of the strip-shaped flexible material is partitioned by a pair of partition plates, foreign matter such as dust due to dust generation from the bearings and the end of the strip-shaped flexible material are rubbed during transport from the strip-shaped flexible material itself. It is possible to prevent foreign matters such as dust due to the generation of dust from adhering to the product portion on the center side of the belt-like flexible material. Therefore, it is possible to prevent foreign matter from adhering to the product against dust generation from the roller bearing that conveys the belt-shaped flexible material or dust generation from the belt-shaped flexible material itself from the end of the belt-shaped flexible material. It is possible to provide an apparatus for preventing foreign matter adhesion.

  The invention described in claim 2 is characterized in that, in the invention of claim 1, the strip-shaped flexible material is a film or a thin plate metal.

  According to claim 2, the present invention is particularly effective when the belt-like flexible material is a film or a thin plate metal.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the pair of partition plates and the clean air supply means are also provided on the lower surface side of the belt-shaped flexible material. To do.

  According to the third aspect, since the pair of partition plates and the clean air supply means are also provided on the lower surface side of the belt-like flexible material, even if foreign matter adheres to one side of the belt-like flexible material, there is a problem in manufacturing. It is possible to suppress the adhesion of foreign matter to a product manufactured from a strip-shaped flexible material that is required to suppress the adhesion of foreign matter on both sides of the strip-shaped flexible material as well as a product that does not exist.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the transport line is provided in an apparatus for forming and processing the strip-shaped flexible material.

  According to claim 4, since the conveying line is provided in the apparatus for forming and processing the strip-shaped flexible material, in this case, it is possible to effectively suppress the adhesion of foreign matter to the product formed and processed the strip-shaped flexible material. can do.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the cleaning air is air containing an ionic component.

  According to the fifth aspect, since the cleaning air is air containing an ionic component, charging of the belt-shaped flexible material can be prevented.

  As described above, according to the foreign matter adhesion preventing apparatus of the present invention, dust generation from the roller bearing that conveys the belt-like flexible material or the belt-like flexible material itself from the end of the belt-like flexible material itself. Foreign matter adhesion to the product can be suppressed against dust generation.

  Hereinafter, preferred embodiments of a foreign matter adhesion preventing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a conceptual view of a foreign matter adhesion preventing apparatus according to the present invention as viewed from the side, and FIG. 2 is a perspective view of the foreign matter adhesion preventing apparatus according to the present invention. As can be seen from FIGS. 1 and 2, the strip-shaped flexible material 12 is conveyed in the direction of the arrow by a plurality of rollers 14, 14. In addition, this conveyance line is shown in the example meandering in the vertical direction. A fan filter unit 16 is provided above the strip-shaped flexible material 12 conveyed by the conveyance line, and blows out clean air from which dust in the air is removed by a high-performance filter.

  Above the left and right end portions of the strip-shaped flexible material 12 being conveyed, the lower end of the strip-shaped flexible material 12 has a shape along the meander of the transport line so that it does not contact the strip-shaped flexible material 12 and the rollers 14, 14. A pair of partition plates 18, 18 formed with Z are attached to the ceiling 15. The clean air X supplied from the FFU 16 is not diffused by the pair of partition plates 18 and 18, and an airflow is formed toward the upper surface of the strip-shaped flexible material 12. The clean air that has reached the upper surface of the strip-shaped flexible material 12 becomes an air flow toward the gap Z between the end of the strip-shaped flexible material 12 and the partition plate 18. In addition, it is preferable that a partition plate is a transparent plastic so that the strip | belt-shaped flexible raw material 12 can be seen.

  The clean air Y discharged from the gap between the end of the strip-shaped flexible material 12 and the partition plate 18 is dust generated from the bearings of the rollers 14, 14,... And the strip-shaped flexible material 12 and the rollers 14, 14. The dust generated by the contact is blown away by the air flow toward the gap between the end of the strip-shaped flexible material 12 and the partition plate 18, so that the dust does not adhere to the strip-shaped flexible material 12. Therefore, the adhesion of dust to the product manufactured from the strip-shaped flexible material 12 can be suppressed. In particular, the dust generation from the bearings that support the plurality of rollers 14, 14... Is caused by the clean air Y discharged from the gap between the end of the strip-shaped flexible material 12 and the partition plate 18, and the strip-shaped flexible material 12. Therefore, it is possible to effectively prevent dust from adhering to a product manufactured from a strip-shaped flexible material.

  Another embodiment of the present invention is shown in FIGS. 3 and 4, the same members as those in the foreign matter adhesion preventing apparatus 10 in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 3 is a conceptual view of a foreign matter adhesion preventing apparatus according to another embodiment of the present invention viewed from the side, and FIG. 4 is a perspective view of the foreign matter adhesion preventing apparatus. The foreign matter adhesion preventing apparatus 10 ′ according to the present embodiment takes into account the prevention of foreign matter adhesion on the lower surface side of the strip-shaped flexible material 12 in the foreign matter adhesion preventing apparatus 10. That is, the arrangement of the pair of partition plates 18 and 18 with respect to the strip-shaped flexible material 12 is the same, but the upper ends of the strip-shaped flexible material 12 being conveyed are also below the left and right ends. A pair of partition plates 22 and 22 are mounted on the floor surface 19 so as to form a gap Z ′ in a shape along the meandering of the transport line so as not to contact the material 12 and the rollers 14, 14. And the blower outlet 20,20 ... which blows cleaning air is further attached below the strip | belt-shaped flexible raw material 12. As shown in FIG. A blower outlet is formed by a duct, piping, etc. The clean air X ′ supplied from the air outlet 20 of the pipe is not diffused by the pair of partition plates 22 and 22, and an airflow is formed toward the lower surface of the strip-shaped flexible material 12. Then, the clean air that has reached the lower surface of the strip-shaped flexible material 12 becomes an air flow toward the gap Z ′ between the end of the strip-shaped flexible material 12 and the partition plate 22.

  The clean air Y ′ discharged from the gap Z ′ between the end of the strip-shaped flexible material 12 and the partition plate 22 is generated by dust generated from the bearings of the rollers 14, 14, and the strip-shaped flexible material 12 and the roller. The dust generated by the contact with 14, 14,... Is blown away by the airflow toward the gap between the end of the strip-shaped flexible material 12 and the partition plate 22.

  Therefore, since the pair of partition plates and the clean air supply means are provided on the lower side and the upper side of the strip-shaped flexible material, it is possible to prevent dust from adhering to both surfaces of the strip-shaped flexible material 12 and to allow the strip-shaped flexible material. It is possible to further suppress the adhesion of dust to a product manufactured from a flexible material.

  Further, the belt-like flexible material and the rollers 14, 14... Are brought into contact with each other, so that friction between the belt-like flexible material and the rollers 14, 14,. The charging of the strip-shaped flexible material due to the generated static electricity can be eliminated by including an ionic component in the supply cleaning air.

The conceptual diagram seen from the side of the foreign material adhesion prevention apparatus of this invention The perspective view of the foreign material adhesion prevention apparatus of this invention The conceptual diagram seen from the side of the foreign material adhesion prevention apparatus which concerns on another embodiment of this invention The perspective view of the foreign material adhesion prevention apparatus which concerns on another embodiment of this invention. The perspective view which shows the roller and strip | belt-shaped flexible material in the apparatus which forms and processes a strip | belt-shaped flexible material

Explanation of symbols

  2 ... strip-shaped flexible material, 4 ... roller, 10, 10 '... foreign matter adhesion prevention device, 12 ... strip-shaped flexible material, 14 ... roller, 15 ... ceiling, 16 ... fan filter unit (clean air supply means), DESCRIPTION OF SYMBOLS 18 ... Partition plate, 19 ... Floor surface, 20 ... Air outlet, 22 ... Partition plate, X, X '... Clean air supplied from air outlet, Y, Y' ... Clean air discharged from gap, Z, Z '... Gap

Claims (5)

In the foreign matter adhesion preventing apparatus in the transport line for transporting the belt-shaped flexible material with a plurality of rollers,
It is erected along the conveying direction of the band-shaped flexible material in the vicinity of both ends of the band-shaped flexible material,
A pair of partition plates in which a gap is formed between the lower end and the strip-shaped flexible material;
A foreign matter adhesion preventing apparatus, comprising: a clean air supply unit configured to supply clean air between the pair of partition plates to form an air flow discharged from the gap.   2. The foreign matter adhesion preventing apparatus according to claim 1, wherein the belt-like flexible material is a film or a thin plate metal.   3. The foreign matter adhesion preventing apparatus according to claim 1, wherein the pair of partition plates and the clean air supply means are also provided on the lower surface side of the strip-shaped flexible material.   The foreign matter adhesion preventing apparatus according to claim 1, wherein the transport line is provided in an apparatus for forming and processing the strip-shaped flexible material. The foreign matter adhesion preventing apparatus according to claim 1, wherein the cleaning air is air containing an ionic component.

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