阅读说明：本技术 异物去除装置 (Foreign matter removing device ) 是由 堤清贵 德冈拓也 宫原祐树 中村宜弘 于 2019-12-09 设计创作，主要内容包括：本发明提供能够高效地去除附着于工件的异物的异物去除装置(100)。本发明的异物去除装置(100)去除附着于工件(W)的外周面的异物,该工件(W)是对层叠多层带粘合剂层的膜构成的层叠体的外周面进行切削而得到的,该异物去除装置(100)具备保持单元(10)和异物去除单元(20),该保持单元(10)以使外周面露出的方式保持该工件(W),该异物去除单元(20)具有送出辊(21)、卷取辊(22)及抵接辊(23),该送出辊(21)将粘合带(30)送出,该卷取辊(22)卷取由该送出辊(21)送出的该粘合带(30),该抵接辊(23)配置于该送出辊(21)与该卷取辊(22)之间,并且以可将该粘合带(30)按压于该工件(W)上的方式构成。(The invention provides a foreign matter removing device (100) capable of efficiently removing foreign matters attached to a workpiece. The foreign matter removing device (100) of the invention removes foreign matters attached to the outer peripheral surface of a workpiece (W), the work (W) is obtained by cutting the outer peripheral surface of a laminate formed by laminating a plurality of films with adhesive layers, the foreign matter removing device (100) is provided with a holding unit (10) and a foreign matter removing unit (20), the holding unit (10) holds the workpiece (W) so that the outer peripheral surface thereof is exposed, the foreign matter removing unit (20) has a delivery roller (21), a take-up roller (22) and an abutment roller (23), the sending-out roller (21) sends out the adhesive tape (30), the winding-up roller (22) winds up the adhesive tape (30) sent out by the sending-out roller (21), the abutment roller (23) is disposed between the delivery roller (21) and the take-up roller (22), and the adhesive tape (30) is configured to be pressed against the workpiece (W).)

1. A foreign matter removing device for removing foreign matter adhering to the outer peripheral surface of a work obtained by cutting the outer peripheral surface of a laminate constituted by laminating a plurality of films with adhesive layers,

wherein the device comprises a holding unit and a foreign matter removing unit,

the holding means holds the workpiece so that the outer peripheral surface is exposed,

the foreign matter removing unit includes a feed roller that feeds out an adhesive tape, a take-up roller that takes up the adhesive tape fed out by the feed roller, and a contact roller that is disposed between the feed roller and the take-up roller and is configured to be able to press the adhesive tape against the workpiece.

2. The foreign matter removal apparatus according to claim 1, wherein the workpiece is configured in a rotatable manner.

3. The foreign matter removal device according to claim 2, wherein the abutment roller is configured to be movable forward and backward following a shape and rotation of the workpiece.

4. The foreign matter removal device according to any one of claims 1 to 3, wherein the abutment roller is an elastic roller having an elastic layer on a surface thereof.

5. The foreign matter removal device according to claim 4, wherein a thickness of the elastic surface layer of the elastic roller is 4mm or more.

6. The foreign matter removal device according to any one of claims 1 to 5, wherein the pressing force of the abutment roller is 0.2MPa to 0.5 MPa.

7. A foreign matter removal method for removing foreign matter adhering to an outer peripheral surface of a workpiece obtained by cutting an outer peripheral surface of a laminate composed of a plurality of films each having an adhesive layer laminated thereon, using the foreign matter removal device according to any one of claims 1 to 6,

which comprises the following steps:

setting the workpiece to the holding unit; and

the adhesive tape running on the foreign matter removing unit is pressed against the outer peripheral surface of the workpiece, and the foreign matter adhered to the outer peripheral surface of the workpiece is removed.

8. The foreign matter removal method according to claim 7, comprising the steps of: after the workpiece is set, the adhesive tape that has advanced by the foreign matter removal means is pressed against the outer peripheral surface of the workpiece while rotating the workpiece about the vertical axis of the workpiece.

9. The foreign matter removal method according to claim 8, wherein the workpiece is a workpiece obtained by cutting an outer peripheral surface of the stacked body by bringing a cutting mechanism into contact with the outer peripheral surface while rotating the stacked body about a vertical axis,

the rotation speed of the workpiece is faster than the rotation speed of the laminated body when the outer peripheral surface is cut.

10. The foreign matter removal method according to claim 9, wherein a rotation direction of the work is a direction opposite to a rotation direction of the laminated body when the outer peripheral surface is cut.

Technical Field

The present invention relates to a foreign matter removing device.

Background

Conventionally, it has been known to perform cutting processing such as end milling on an end face of a workpiece formed by stacking a plurality of films, but when a film with a pressure-sensitive adhesive layer is used as the film, there is a problem that foreign matter (chips) adheres to a surface to be cut after the cutting processing. Conventionally, when such foreign matter is generated, the foreign matter is removed by a manual operation using an adhesive tape or the like, but such an operation is complicated and has a problem in efficiency. In addition, it is disadvantageous in that an excessive amount of adhesive tape is required.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 6277150

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above conventional problems, and has as its main object: provided is a foreign matter removal device capable of efficiently removing foreign matter adhering to a workpiece.

Means for solving the problems

The foreign matter removing device of the present invention removes foreign matter adhering to an outer peripheral surface of a workpiece obtained by cutting an outer peripheral surface of a laminate constituted by laminating films with adhesive layers, and is provided with a holding unit that holds the workpiece so that the outer peripheral surface is exposed, and a foreign matter removing unit that has a delivery roller that delivers an adhesive tape, a take-up roller that takes up the adhesive tape delivered by the delivery roller, and a contact roller that is disposed between the delivery roller and the take-up roller and is configured so as to be able to press the adhesive tape against the workpiece.

In one embodiment, the workpiece is configured to be rotatable.

In one embodiment, the abutment roller is configured to be movable forward and backward so as to follow the shape and rotation of the workpiece.

In one embodiment, the abutment roller is an elastic roller having an elastic layer on a surface thereof.

In one embodiment, the thickness of the elastic surface layer of the elastic roller is 4mm or more.

In one embodiment, the pressing force of the abutment roller is 0.2 to 0.5 MPa.

According to another aspect of the present invention, a foreign material removal method is provided. The foreign matter removing method for removing foreign matter adhering to an outer peripheral surface of a workpiece obtained by cutting an outer peripheral surface of a laminate formed by laminating a plurality of films with adhesive layers, using the foreign matter removing apparatus, includes: disposing the workpiece in the holding unit; rotating the workpiece about a vertical axis of the workpiece; and removing the foreign matter adhered to the outer peripheral surface of the workpiece while pressing the adhesive tape running on the foreign matter removing unit against the outer peripheral surface of the workpiece.

In one embodiment, the foreign matter removal method includes the steps of: after the workpiece is set, the adhesive tape running on the foreign matter removal means is pressed against the outer peripheral surface of the workpiece while rotating the workpiece about the vertical axis of the workpiece.

In one embodiment, the workpiece is a workpiece obtained by cutting an outer peripheral surface of the laminated body by bringing a cutting mechanism into contact with the outer peripheral surface while rotating the laminated body about a vertical axis, and the rotation speed of the workpiece is higher than the rotation speed of the laminated body when cutting the outer peripheral surface.

In one embodiment, the rotation direction of the workpiece is opposite to the rotation direction of the stacked body when the outer peripheral surface is cut.

Effects of the invention

According to the present invention, a foreign matter removal device capable of efficiently removing foreign matter adhering to a workpiece can be provided.

Drawings

Fig. 1 is a perspective view schematically illustrating a foreign material removing apparatus according to an embodiment of the present invention.

Fig. 2 is a perspective view schematically illustrating a foreign substance removal unit of the foreign substance removal apparatus according to the embodiment of the present invention.

Fig. 3(a) is a photographic view showing the outer periphery of the workpiece before the removal of the foreign matter in example 1, and fig. 3(b) is a photographic view showing the outer periphery of the workpiece after the removal of the foreign matter in example 1.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments. Further, the drawings are schematically illustrated for convenience of viewing, and the ratios of the length, width, thickness, and the like, and the angles and the like in the drawings are different from those in reality.

A. Foreign matter removing device

Fig. 1 is a perspective view schematically illustrating a foreign material removing apparatus according to an embodiment of the present invention. The foreign substance removal apparatus 100 illustrated in the figure includes a holding unit 10 and a foreign substance removal unit 20.

The holding unit 10 is an element for holding the workpiece W, and holds the workpiece W so that the outer peripheral surface thereof is exposed. The work W is obtained by cutting the outer peripheral surface of a laminate formed by laminating a plurality of films with adhesive layers. A large number of foreign substances (chips) adhere to the outer peripheral surface of the workpiece W obtained by cutting the outer peripheral surface of the laminated body. The foreign substance removal apparatus 10 of the present invention can remove foreign substances adhering to the outer peripheral surface of the workpiece W by the foreign substance removal unit 20 running on the outer peripheral surface of the workpiece W held by the holding unit 10 and pressing the adhesive surface of the adhesive tape 30 having any appropriate adhesive force against the outer peripheral surface. According to the foreign matter removal device of the present invention, a new portion (a portion not yet subjected to foreign matter removal) of the adhesive surface of the adhesive tape 30 can be sequentially supplied to the contaminated portion of the outer peripheral surface of the workpiece W, and the foreign matter can be efficiently and automatically removed.

In one embodiment, the holding unit 10 is composed of two holding mechanisms having a shaft 11 and a pressing portion 12, and the pressing portion 12 is disposed at the tip of the shaft 11. The workpiece W can be pressed and held by a holding mechanism disposed so that the pressing portions 12 face each other.

In one embodiment, the workpiece W is rotatable about a vertical axis of the workpiece W. In the present embodiment, the entire outer periphery of the workpiece W can be efficiently and automatically cleaned. Further, it is also advantageous in that a new portion (a portion not yet subjected to the removal of foreign matters) of the adhesive surface of the adhesive tape 30 can be continuously supplied to the contaminated portion of the outer peripheral surface of the workpiece W.

The foreign substance removal unit 20 has a function of continuously running the long adhesive tape 30, and includes a delivery roller 21, a take-up roller 22, and a contact roller 23. The delivery roller 21, the take-up roller 22, and the abutment roller 23 may be disposed on one base 24.

As the feed roller 21, a roller member (belt frame) such as a metal roller, a rubber roller, or a resin roller can be used. The delivery roller 21 may be a roller having a driving source or a roller having no driving source. In one embodiment, the delivery roller 21 itself has no drive source, and is configured to rotate along with the movement of the adhesive tape 30. The delivery roller 21 may be provided with a back tension to the adhesive tape 30 by a mechanism such as a powder brake (powder brake).

As the winding roller 22, a roller member such as a metal roller, a rubber roller, or a resin roller can be used. The winding roller 22 has a driving source and rotates to wind the adhesive tape 30. In one embodiment, the winding roller 22 winds only the fed-out portion of the adhesive tape 30 fed out and running by the abutment roller 23, and the abutment roller 23 is pressed against the rotating work W and is rotated. In this way, the amount of the adhesive tape 30 to be used can be reduced. The take-up roll 22 may apply back tension to the adhesive tape 30 by a mechanism such as a powder brake.

The abutment roller 23 is disposed between the delivery roller 21 and the take-up roller 22 (midway along the running path of the adhesive tape 30). The abutment roller 23 may be arranged such that the traveling direction of the adhesive tape 30 changes depending on the abutment roller 23. The abutment roller 23 is preferably disposed so that the angle of wrap of the adhesive tape 30 is 45 ° to 200 °, and more preferably 90 ° to 180 °.

The abutment roller 23 is configured to be movable forward and backward, is located at a position apart from the workpiece W before and after the foreign substance removal operation, and is movable in abutment with the outer peripheral surface of the workpiece W when the foreign substance removal operation is performed. The abutment roller 23 is biased by a predetermined drive mechanism and configured to move back and forth so as to follow the shape and rotation of the workpiece W. In this way, the abutment roller can be positioned at a position corresponding to the outermost locus of rotation of the workpiece W at the time of foreign matter removal, and the adhesive tape 30 can be constantly pressed against the workpiece W by the abutment roller 23 during the foreign matter removal operation. The abutment roller 23 may be configured to be pressed against the rotating workpiece W and rotated without a drive source. The abutment roller 23 may be disposed such that the rotation axis extends in the stacking direction of the works W.

The forward and backward movement of the abutment roller 23 may be performed by any suitable mechanism. The contact roller 23 can be moved forward and backward by using a driving mechanism such as an air cylinder (air cylinder, hydraulic cylinder, etc.), a spring, or a motor. Preferably, the delivery roller 21, the take-up roller 22, and the abutment roller 23 are disposed on one base 24, and the base 24 is moved forward and backward to move the abutment roller 23 forward and backward.

In one embodiment, as shown in fig. 2, the cylinder 25 is combined with the spring 26 to move the abutment roller 23 (or the pedestal 24 on which the abutment roller 23 is disposed) forward and backward. In one embodiment, the spring 26 is used to move the abutment roller 23 forward (toward the workpiece W) and press the abutment roller 23 against the workpiece W, and the cylinder 25 (preferably an air cylinder) is used to move the abutment roller 23 rearward. The spring 26 may be used to press the abutment roller 23 against the workpiece W.

In one embodiment, the abutment roller 23 is an elastic roller having an elastic layer on the surface. If an elastic roller is used, when the abutment roller 23 is pressed against the workpiece W, the roller surface is deformed so that the abutment roller 23 can follow the minute unevenness of the outer peripheral surface of the workpiece well, and the abutment roller 23 can also follow the inclined workpiece. As a result, a gap can be prevented from being generated between the abutment roller 23 (substantially, the adhesive tape 30) and the workpiece W.

The pressing pressure of the abutment roller 23 is preferably 0.2MPa to 0.5MPa, and more preferably 0.3MPa to 0.4 MPa. By pressing the abutment roller 23 against the workpiece W with such a pressing pressure and causing the adhesive tape 30 to travel between the abutment roller 23 and the workpiece W, foreign matter adhering to the outer periphery of the workpiece W can be removed more satisfactorily, and the quality of the outer peripheral surface can be maintained satisfactorily.

The hardness (JIS a) of the elastic layer is preferably less than 60 °, more preferably less than 50 °, still more preferably 20 ° to 40 °, and particularly preferably 20 ° to 40 °. In such a range, foreign matter adhering to the outer periphery of the workpiece W can be removed more satisfactorily.

The elastic layer may be formed by any suitable material. Examples of the material for forming the elastic layer include: butyl rubber, fluorine-based rubber, acrylic rubber, ethylene propylene rubber (EPDM), nitrile rubber (NBR), acrylonitrile butadiene styrene rubber, natural rubber, isoprene rubber, styrene-butadiene rubber, ethylene-propylene terpolymer, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, urethane rubber, syndiotactic 1, 2-polybutadiene, epichlorohydrin-based rubber, silicone rubber, fluorine rubber, polysulfide rubber, polynorbornene rubber, hydrogenated nitrile rubber, thermoplastic elastomer (e.g., polystyrene, polyolefin, polyvinyl chloride, polyurethane, polyamide, polyurea, polyester, fluorine-based), and mixtures thereof.

The thickness of the elastic layer is preferably 4mm or more, more preferably 5mm or more, and still more preferably 7mm or more. In such a range, foreign matter adhering to the outer periphery of the workpiece W can be removed more satisfactorily.

The abutment roller 23 preferably has an outer diameter of 10mm to 100mm, more preferably 20mm to 60 mm. The width of the abutment roller 23 is preferably equal to or greater than the thickness of the workpiece W.

B. Foreign matter removing method

The foreign matter removing method of the present invention removes the foreign matter adhering to the outer peripheral surface of the predetermined workpiece using the above-described foreign matter removing apparatus.

The foreign matter removing method of the present invention includes the steps of: a holding unit for placing the workpiece in a foreign matter removing device; and removing the foreign matter adhered to the outer peripheral surface of the workpiece while pressing the adhesive tape running on the foreign matter removing unit against the outer peripheral surface of the workpiece.

The work is obtained by cutting the outer peripheral surface of a laminate formed by laminating a plurality of films with adhesive layers. As the film with an adhesive layer, any suitable film may be used. Examples thereof include: a resin film (e.g., optical film) having an adhesive layer, a glass film having an adhesive layer, a composite film thereof, and the like. The laminate is typically cut into any suitable shape when forming a workpiece. Specifically, the optical layered body may be cut into a rectangular shape, may be cut into a shape close to a rectangular shape, or may be cut into an appropriate shape (for example, a circular shape) according to the purpose.

The outer periphery of the workpiece may be cut by any suitable cutting mechanism. The cutting can be performed by bringing a cutting blade of a cutting means into contact with the outer peripheral surface of the laminate. The cutting may be performed on the entire outer peripheral surface of the laminate or may be performed only at a predetermined position. As the cutting mechanism, for example, an end mill can be cited. In one embodiment, the work is a work obtained by bringing a cutting mechanism into contact with an outer peripheral surface of a laminate formed by laminating a plurality of films with an adhesive layer while rotating the laminate around a vertical axis. In one embodiment, the cutting is performed while the laminated body is held by the holding means. The work obtained after cutting can be directly put into the foreign substance removal device in a state of being held by the holding means and subjected to the foreign substance removal process.

The rotation speed (rps) of the workpiece during the cutting is, for example, 0.02rps to 0.04 rps.

In one embodiment, the work is set in the holding means, and the adhesive tape running on the foreign substance removal means is pressed against the outer peripheral surface of the work while rotating the work about the vertical axis as described above. Typically, the abutment roller of the foreign matter removal unit is moved forward to press the abutment roller against the workpiece. In this case, in the foreign substance removal unit, the adhesive tape is provided from the feed roller to the take-up roller provided in the foreign substance removal unit, and the abutment roller is moved forward, whereby the adhesive tape running in the foreign substance removal unit is pressed against the outer peripheral surface of the workpiece. Thus, foreign matter adhering to the outer peripheral surface of the workpiece can be removed by the adhesive surface of the adhesive tape in contact with the workpiece. In one embodiment, the adhesive tape is advanced by an abutment roller that is brought into rotation in coordination with the rotation of the workpiece.

In one embodiment, the rotation speed of the workpiece is higher than the rotation speed of the laminated body when the outer peripheral surface is cut. The rotational speed (rps) of the workpiece is, for example, 0.05rps to 0.5 rps.

The rotational speed of the workpiece may not be constant. For example, when a rectangular workpiece is subjected to foreign matter removal, the rotation speed of the workpiece may be slowed down before and after the corner of the workpiece contacts the adhesive tape. This makes it possible to make the abutment roller easily follow a sudden change in the outermost locus of rotation of the workpiece. In particular, when the abutment roller is suddenly moved forward, for example, it is preferable to reduce the rotation speed of the workpiece at a corner portion where the contact position of the adhesive tape is switched from a short side to a long side (when cleaning is performed so that the foreign substance removal unit abruptly changes the forward angle). In one embodiment, the rotation speed of the workpiece when the corner portion of the workpiece contacts the adhesive tape is set to 50% to 90% relative to the rotation speed of the workpiece when the straight portion of the workpiece contacts the adhesive tape.

The pressing pressure of the abutment roller against the workpiece is preferably 0.2 to 0.5MPa, and more preferably 0.3 to 0.4 MPa. By pressing the abutment roller against the workpiece with such a pressing pressure and running the adhesive tape between the abutment roller and the workpiece, foreign matter adhering to the outer periphery of the workpiece can be more favorably removed, and interlayer peeling of a film constituting the workpiece, chipping of an adhesive layer, and the like can be prevented, and the quality of the outer peripheral surface can be favorably maintained.

In one embodiment, the rotation direction of the workpiece is opposite to the rotation direction of the stacked body when the outer peripheral surface is cut. In this way, foreign matter adhering to the outer periphery of the workpiece can be removed satisfactorily.

In the above foreign matter removal method, the rotation speed of the workpiece from the start to the end of the foreign matter removal operation is preferably 1 to 10 revolutions, more preferably 1 to 5 revolutions, and still more preferably 1 revolution. According to the present invention, foreign matter on the outer periphery of the workpiece can be removed in a short time. The end face (outer periphery) of the workpiece may be cleaned for one cycle, two cycles, or three or more cycles.

Examples

The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

< example 1 >

Using the foreign substance removal apparatus shown in fig. 1, a work (total thickness of about 10mm) obtained by cutting the outer peripheral surface of a laminate constituted by laminating a plurality of films with an adhesive layer was rotated, and the adhesive tape running in the foreign substance removal unit was pressed against the outer periphery of the work to remove foreign substances attached to the outer periphery of the work.

The abutment roller was constituted such that an elastic layer (urethane rubber, thickness: 7.5mm) was provided on the outer periphery of an iron core (φ 15mm), and the hardness (JIS A) of the elastic layer was set to 50 °. The rotation speed of the workpiece was set to 0.2rps, and the rotation direction was set to the direction opposite to the rotation direction of the laminate when the outer peripheral surface was cut.

When the foreign matter removal operation by 1 rotation of the workpiece was completed and the appearance of the outer periphery of the workpiece was visually confirmed, no foreign matter was observed adhering thereto. Fig. 3(a) shows the outer appearance of the outer periphery of the workpiece before the foreign substance removal operation, and fig. 3(b) shows the outer appearance of the outer periphery of the workpiece after the foreign substance removal operation.

< examples 2 to 8 >

Foreign matter on the outer periphery of the workpiece was removed in the same manner as in example 1, except that the core diameter of the abutment roller, the thickness of the elastic layer, and the hardness of the elastic layer were set to values shown in table 1.

The appearance after the foreign matter removal operation was visually confirmed and evaluated according to the following criteria.

And (delta): although a reduction in foreign matter (adhesive layer component) was observed, foreign matter was also observed to remain, and further foreign matter removal by manual operation was required.

Good: foreign matter is reduced by a considerable amount, and further foreign matter removal by manual operation is performed with little effort.

Very good: no foreign matter was confirmed, and further foreign matter removal by manual operation was not required.

TABLE 1

	Iron core diameter (mm)	Thickness of elastic layer (mm)	External diameter of abutting roller (mm)	Hardness of elastic layer	Evaluation of
						Example 1	15	7.5	30	50	◎
Example 2	6	2	10	70	△
						Examples3	6	2	10	50	△
Example 4	8	6	20	50	〇
						Example 5	8	6	20	30	〇
Example 6	15	7.5	30	30	◎
						Example 7	20	10	40	50	◎
Example 8	20	10	40	30	◎

Industrial applicability

The foreign matter removal device of the present invention is applicable to the case where foreign matter adhering to the outer peripheral surface of a workpiece obtained by cutting the outer peripheral surface of a laminate composed of a plurality of films with adhesive layers laminated thereon is removed.

Description of the symbols

10 holding unit

20 foreign matter removing unit

21 delivery roller

22 take-up roll

23 abutment roller

25 cylinder body

26 spring

30 adhesive tape

100 foreign matter removing device