TWI566863B - Cutter for machining an edge surface of a film, a machining apparatus having such a cutter, and method for machining an edge surface of a film - Google Patents

Cutter for machining an edge surface of a film, a machining apparatus having such a cutter, and method for machining an edge surface of a film Download PDF

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TWI566863B
TWI566863B TW099132972A TW99132972A TWI566863B TW I566863 B TWI566863 B TW I566863B TW 099132972 A TW099132972 A TW 099132972A TW 99132972 A TW99132972 A TW 99132972A TW I566863 B TWI566863 B TW I566863B
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Taiwan
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cutting
degrees
diaphragm
cutting edge
face
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TW099132972A
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Chinese (zh)
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TW201117899A (en
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片岡達哉
西原正
勝田澄夫
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住友化學股份有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00634Production of filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/12Trimming or finishing edges, e.g. deburring welded corners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/06Face-milling cutters, i.e. having only or primarily a substantially flat cutting surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/16Milling-cutters characterised by physical features other than shape
    • B23C5/20Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22Securing arrangements for bits or teeth or cutting inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006Cutting members therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/36Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements
    • G02B5/3025Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Milling Processes (AREA)
  • Turning (AREA)

Description

膜片之端面加工用切刀及具有該切刀之加工機,以及膜片之端面加工方法Cutting blade for end face processing of film and processing machine having the same, and end face processing method for film

本發明係關於一種用以切削膜片(film)之端面的端面加工用切刀(cutter)及具有該切刀之加工機,以及膜片之端面加工方法,尤指關於用以將導光板、擴散板、光學膜片等加以多片疊合所構成的偏光板的端面予以鏡面加工的端面加工用切刀。The present invention relates to a cutter for end face machining for cutting an end face of a film, a processing machine having the same, and a method for processing an end face of the film, and more particularly to a light guide plate, A cutting blade for end surface processing in which an end surface of a polarizing plate composed of a plurality of sheets, such as a diffusion plate and an optical film, is mirror-finished.

以往,將偏光板廣泛地使用在各種的LCD(Liquid Crystal Display,液晶顯示器)、紅外線感測器、以及其他各種用途。偏光板係藉由層積乙烯醇膜片(polyvinyl alcohol film)及TAC(Tri Acetyl Cellulose,三乙醯基纖維素)膜片等的樹脂膜片所構成。Conventionally, polarizing plates have been widely used in various LCD (Liquid Crystal Display), infrared sensors, and various other uses. The polarizing plate is formed by laminating a resin film such as a polyvinyl alcohol film and a TAC (Tri Acetyl Cellulose) film.

將上述偏光板等的薄片(sheet)狀構件(膜片)使用在各種用途時,例如在安裝於LCD時,有加工為預定的形狀及尺寸的必要,尤其有將薄片狀構件的端面予以加工的必要。為了進行上述的加工,通常使用在圓盤狀的旋轉板的圓周部分設有切削刀刃的端面切削裝置。於上述切削裝置中,考慮到加工效率,可將複數片重疊的薄片狀構件同時地進行端面加工。When a sheet-like member (membrane) such as the polarizing plate described above is used in various applications, for example, when mounted on an LCD, it is necessary to process into a predetermined shape and size, and in particular, the end surface of the sheet-like member is processed. Necessary. In order to perform the above-described processing, an end face cutting device in which a cutting edge is provided at a circumferential portion of a disk-shaped rotating plate is generally used. In the above cutting apparatus, in consideration of the processing efficiency, a plurality of laminar sheet-like members can be simultaneously subjected to end surface processing.

此外,關於偏光板等薄片狀構件,於其端面形成有切削痕跡時,有損薄片狀構件的外觀,並降低尺寸精度。從而,精度良好地切削薄片狀構件的端面係為非常重要的步驟。Further, when a sheet-like member such as a polarizing plate is formed with a cutting mark on its end surface, the appearance of the sheet-like member is impaired, and the dimensional accuracy is lowered. Therefore, it is a very important step to accurately cut the end faces of the sheet-like members.

考慮了上述的問題點的切削加工方法係揭露於JP2007-223021-A。在使用記載於JP2007-223021-A的切削加工方法的端面切削裝置(參照JP2007-223021-A的第3圖)係在圓板狀本體6配置有六個切削刀刃7。與一般的端面切削裝置相同地切削刀刃7係對於圓板狀本體6的法線設置為垂直,而切削刀刃7的刀尖係朝圓板狀本體6的旋轉中心軸的方向設置。 A cutting method in which the above problems are considered is disclosed in JP2007-223021-A. In the end face cutting device (refer to Fig. 3 of JP2007-223021-A) using the cutting method described in JP2007-223021-A, six cutting edges 7 are arranged in the disk-shaped main body 6. Similarly to the general end face cutting device, the cutting edge 7 is perpendicular to the normal line of the disk-shaped body 6, and the cutting edge of the cutting blade 7 is provided in the direction of the central axis of rotation of the disk-shaped body 6.

在記載於JP2007-223021-A的切削加工方法中,當由切削刀刃所形成的切削區域的部分接觸到屬於切削對象的薄片之際,上述切削刀刃侵入端面的角度為對於該端面的長邊方向75度以下(參照JP2007-223021-A的申請專利範圍第2項及第1圖)。亦即,具體而言,使其在穿過圓板狀本體6的下部的水平區域移動並進行切削。 In the cutting method described in JP2007-223021-A, when the portion of the cutting region formed by the cutting edge contacts the sheet belonging to the cutting target, the angle at which the cutting edge intrudes into the end surface is the long side direction of the end surface. 75 degrees or less (refer to the second and first drawings of the patent application scope of JP2007-223021-A). That is, specifically, it is moved and cut in a horizontal area passing through the lower portion of the disk-shaped body 6.

藉此,可對於薄片狀構件的長邊方向以75度以下使切削刀刃侵入到端面。結果,對於薄片狀構件,因切削刀刃所導致的向上推擠(或者向下推擠)作用受到緩和,而可防止因端面裂開、構成偏光板的層積膜片的剝離所生成之空隙的產生,並可精度良好地切削薄片狀構件的端面。 Thereby, the cutting edge can be invaded to the end surface at 75 degrees or less in the longitudinal direction of the sheet-like member. As a result, with respect to the sheet-like member, the upward pushing (or downward pushing) action by the cutting blade is alleviated, and the void generated by the peeling of the laminated film which constitutes the polarizing plate due to the end face cracking can be prevented. It is produced and the end surface of the sheet-like member can be cut with high precision.

然而,在記載於JP2007-223021-A的切削加工方法中,雖可精度良好地加工端面,但仍有無法提升加工效率的問題存在。 However, in the cutting method described in JP2007-223021-A, although the end surface can be processed with high precision, there is a problem that the processing efficiency cannot be improved.

詳細而言,在記載於JP2007-223021-A的切削加工方法中,必須使薄片狀構件移動至穿過圓板狀本體6的下部的水平區域並進行切削。因此,能設置薄片狀構件的區域係受到限制,無法為了提升加工效率而層積更多的薄片狀構件並進行加工。Specifically, in the cutting method described in JP2007-223021-A, it is necessary to move the sheet-like member to a horizontal region passing through the lower portion of the disk-shaped body 6 and perform cutting. Therefore, the area in which the sheet-like members can be provided is limited, and it is not possible to laminate and process more sheet-like members for the purpose of improving the processing efficiency.

尤其是如同偏光板由多層所構成的薄片狀構件的情形時,由於單片的厚度較厚,故為了加工較多之片數,必然地需要更寬的可加工薄片構件的區域,故上述的問題點係變得顯著。In particular, in the case of a sheet-like member in which the polarizing plate is composed of a plurality of layers, since the thickness of the single piece is thick, in order to process a large number of sheets, a wider area of the sheet member to be processed is inevitably required, so the above-mentioned The problem is becoming noticeable.

本發明係有鑑於前述之問題點所開發者,其目的為提供一種膜片之端面加工用切刀及具有該切刀之加工機,以及膜片之端面加工方法,該切刀係不會在膜片的端面產生缺陷或損傷下可進行切削,並能進行大量的端面加工。The present invention has been made in view of the above problems, and an object thereof is to provide a cutter for end face processing of a diaphragm, a processing machine having the same, and a method for processing an end face of the diaphragm, the cutter system not being The end face of the diaphragm can be cut under defects or damage, and a large number of end faces can be processed.

本發明的膜片之端面加工用切刀係為了解決上述課題,而具備有旋轉體、設於對於旋轉體的旋轉軸垂直的設置面(第1圖的S)之複數個切削部者,其中,上述切削部係從設置面突出,且切削部係具有頂面,並於上述頂面的至少一邊形成有切削刀刃,並且在從對於設置面的垂直方向觀看之情形下,將通過上述切削刀刃的旋轉軸側的端部及旋轉軸直線做為基準線時,上述切削刀刃係以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置。In order to solve the above problems, the cutter for the end face machining of the diaphragm of the present invention includes a rotary body and a plurality of cutting portions provided on the installation surface (S of FIG. 1) perpendicular to the rotation axis of the rotary body, wherein The cutting portion protrudes from the installation surface, and the cutting portion has a top surface, and a cutting edge is formed on at least one side of the top surface, and passes through the cutting edge when viewed from a vertical direction with respect to the installation surface. When the end portion on the side of the rotating shaft and the straight line of the rotating shaft are used as the reference line, the cutting edge is provided so as to be inclined in a range of 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft.

依據上述發明,上述切削刀刃係以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置,故將屬於端面加工對象的膜片設置於包含通過旋轉體的中心點(旋轉中心)之水平面的區域時,可使切削刀刃以緩和的角度接觸於膜片。結果,能對於膜片的端面一邊抑制缺陷或損傷,一邊進行端面加工。亦即,對於膜片的端面,能一邊抑制破裂(crack)的產生一邊進行端面加工。此外,能將通過旋轉體之中心點的區域應用於端面加工,並可確保較寬的可端面加工的範圍。According to the above aspect of the invention, the cutting edge is provided so as to be inclined in a range of 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft. Therefore, the diaphragm which is the object of the end surface processing is provided at the center point including the passing rotating body. In the region of the horizontal plane (rotation center), the cutting edge can be brought into contact with the diaphragm at a gentle angle. As a result, the end surface processing can be performed while suppressing defects or damage to the end surface of the diaphragm. That is, the end surface of the diaphragm can be subjected to end surface processing while suppressing the occurrence of cracks. In addition, the area passing through the center point of the rotating body can be applied to the end face processing, and a wide range of end face machining can be ensured.

此外,於本發明的膜片之端面加工用切刀中,上述切削刀刃較佳係以朝上述旋轉軸的旋轉方向在25度以上、30度以下的範圍內傾斜的方式設置。Further, in the cutting blade for end face machining of the diaphragm of the present invention, the cutting blade is preferably provided to be inclined in a range of 25 degrees or more and 30 degrees or less in a rotation direction of the rotating shaft.

藉此,可使切削刀刃對於膜片以更平緩的角度接觸。從而,可對於膜片的端面進一步地抑制缺陷或損傷。Thereby, the cutting edge can be brought into contact with the diaphragm at a gentler angle. Thereby, defects or damage can be further suppressed for the end faces of the diaphragm.

此外,本發明的端面加工機係具備有上述膜片之端面加工用切刀,以及用以支持膜片之層積體的支持裝置的膜片之端面加工機,並具備有使支持裝置對於上述設置面水平地移動的移動裝置。Further, the end surface processing machine according to the present invention is provided with an end face processing machine including a cutter for end face processing of the above-mentioned diaphragm and a support device for supporting a laminate of the diaphragm, and a support device for the above Set the mobile device whose face moves horizontally.

上述端面加工機係具備有上述端面加工用切刀,而對於支持於支持裝置的膜片之層積體,使支持裝置對於具備有切削刀刃的上述設置面水平地移動,藉此可進行膜片之層積體的端面加工。依據具備有上述膜片之端面加工用切刀的端面加工機,能對於膜片的端面一邊抑制缺陷或損傷,一邊進行端面加工。In the above-described end face processing machine, the end face machining cutter is provided, and the support device is horizontally moved with respect to the installation surface including the cutting blade for the laminate of the diaphragm supported by the support device, whereby the diaphragm can be moved. The end face of the laminate is processed. According to the end surface processing machine provided with the cutter for end surface processing of the above-mentioned diaphragm, it is possible to perform end surface processing while suppressing defects or damage to the end surface of the diaphragm.

本發明之膜片之端面加工方法係為了解決上述課題,具備有旋轉體、以及設於對於旋轉體的旋轉軸垂直的上述設置面的複數個切削部,其中,上述切削面係從設置面突出,切削部係具有頂面,並於上述頂面的至少一邊形成有切削刀刃,並且在從對於上述設置面的垂直之方向觀看切削刀刃之情形下,將通過上述切削刀刃的旋轉軸側之端部及旋轉軸的直線做為基準線時,藉由上述切削刀刃以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置的端面加工用切刀,切削膜片層積體的端面;並且在包含通過上述旋轉軸的水平面之薄片區域中,藉由使膜片之層積體接觸於旋轉的上述複數片切削刀刃,而切削膜片之端面,並將切削刀刃接觸於膜片之層積體的下表面的出口角、與切削刀刃接觸於膜片之層積體的上表面之侵入角的差設為45度以下。 In order to solve the above problems, the end face processing method for a diaphragm of the present invention includes a rotating body and a plurality of cutting portions provided on the installation surface perpendicular to a rotation axis of the rotating body, wherein the cutting surface protrudes from the installation surface The cutting portion has a top surface, and a cutting edge is formed on at least one side of the top surface, and when the cutting edge is viewed from a direction perpendicular to the installation surface, the end of the cutting shaft edge of the cutting edge is passed When the straight line of the part and the rotating shaft is used as the reference line, the cutting blade is cut by the end face machining cutter which is provided so as to be inclined in the range of 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft. An end surface of the laminate; and in a sheet region including a horizontal plane passing through the rotating shaft, the end face of the diaphragm is cut by contacting the laminated body of the diaphragm to the rotating plurality of cutting edges, and the cutting edge is cut The difference between the exit angle of the lower surface of the laminate contacting the diaphragm and the penetration angle of the upper surface of the laminate contacting the cutting edge with the cutting blade is 45 degrees or less.

依據上述的發明,由於薄片區域包含上述水平面,故可在通過旋轉體之中心點的水平面附近、亦即端面加工用切刀的中心部附近進行上述層積體之端面加工。藉此,可將通過旋轉體之中心點的區域應用於端面加工,並可確保較寬廣之可端面加工的範圍。再者,因為於切削刀刃設有傾斜,故能以平緩的角度接觸於層積體並進行切削。從而,較確保寬廣之進行端面加工的薄片區域,並且能一邊抑制於層積體缺陷、損傷等的產生一邊進行端面的加工。 According to the above aspect of the invention, since the sheet region includes the horizontal surface, the end surface processing of the laminate can be performed in the vicinity of the horizontal plane passing through the center point of the rotating body, that is, in the vicinity of the center portion of the cutter for end surface machining. Thereby, the region passing through the center point of the rotating body can be applied to the end face processing, and a wide range of end face machining can be ensured. Further, since the cutting edge is provided with the inclination, the laminate can be brought into contact with the cutting at a gentle angle. Therefore, it is possible to perform the processing of the end faces while suppressing the occurrence of defects such as laminate defects, damage, and the like.

此外,於本發明的膜片之端面加工方法中,較佳係將上述侵入角設為9度以上、14度以下。 Further, in the end face processing method of the film of the present invention, it is preferable that the invasion angle is set to be 9 degrees or more and 14 degrees or less.

藉此,可使切削刀刃以平緩的角度接觸於層積體的上表面。結果,能對於膜片的端面一邊抑制缺陷或損傷,一邊進行端面加工。亦即,能對於膜片的端面,一邊抑制破裂的發生一邊進行端面加工。 Thereby, the cutting edge can be brought into contact with the upper surface of the laminate at a gentle angle. As a result, the end surface processing can be performed while suppressing defects or damage to the end surface of the diaphragm. In other words, the end surface processing can be performed while suppressing the occurrence of cracking on the end surface of the diaphragm.

本發明的膜片之端面加工用切刀係如上所述,為具備有旋轉體、及設於對於旋轉體的旋轉軸垂直的設置面(第1圖的S)之複數個切削部,其中,上述切削部係從設置面突出,且切削部係具有頂面,並於上述頂面的至少一邊形成有切削刀刃,並且在從對於設置面垂直之方向觀看的情形下,將通過上述切削刀刃之旋轉軸側的端部及旋轉軸之直線做為基準線時,上述切削刀刃係以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置。As described above, the cutter for the end surface machining of the diaphragm of the present invention includes a plurality of cutting portions including a rotating body and an installation surface (S in FIG. 1) perpendicular to the rotation axis of the rotating body. The cutting portion protrudes from the installation surface, and the cutting portion has a top surface, and a cutting edge is formed on at least one side of the top surface, and passes through the cutting edge when viewed from a direction perpendicular to the installation surface When the straight line on the side of the rotating shaft and the straight line of the rotating shaft are used as the reference line, the cutting edge is provided so as to be inclined in a range of 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft.

因此,在將屬於端面加工對象的膜片設置於包含通過旋轉體的中心點之水平面的區域時,可使切削刀刃對於膜片以平緩的角度接觸。結果,能對於膜片的端面,一邊抑制缺陷或損傷的發生一邊進行端面加工。亦即,可發揮對於膜片的端面一面抑制破裂的發生一面進行端面加工的效果。此外,亦發揮可將通過旋轉體之中心點的區域應用於端面加工,並確保廣泛的可進行端面加工之範圍的效果。Therefore, when the diaphragm belonging to the end surface processing object is placed in a region including the horizontal plane passing through the center point of the rotating body, the cutting blade can be brought into contact with the diaphragm at a gentle angle. As a result, the end surface processing can be performed while suppressing the occurrence of defects or damage to the end surface of the diaphragm. In other words, it is possible to exert an effect of performing end surface processing while suppressing occurrence of cracking on the end surface of the diaphragm. In addition, it also exerts the effect that the area passing through the center point of the rotating body can be applied to the end surface processing, and a wide range of end surface processing can be ensured.

此外,本發明的膜片之端面加工用方法係如上所述,包含:具備有旋轉體、以及設於對於旋轉體的旋轉軸垂直的設置面(第1圖之S)的複數個切削部,其中,上述切削面係從設置面突出,切削部係具有頂面;於上述頂面的至少一邊形成有切削刀刃;在從對於設置面垂直之方向觀看的情形下,將通過上述切削刀刃之旋轉軸側的端部及旋轉軸之直線做為基準線時,藉由上述切削刀刃以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置的端面加工用切刀,切削膜片層積體的端面;並且在通過上述旋轉軸的水平面之薄片區域中,藉由使膜片之層積體接觸於旋轉的上述複數片切削刀刃,而切削膜片之端面,並將切削刀刃接觸於膜片之層積體的下表面的出口角、與切削刀刃接觸於膜片之層積體的上表面之侵入角的差設為45度以下。Further, as described above, the method for processing an end surface of a film according to the present invention includes: a rotating body; and a plurality of cutting portions provided on an installation surface (S in FIG. 1) perpendicular to a rotation axis of the rotating body, Wherein the cutting surface protrudes from the installation surface, the cutting portion has a top surface; at least one side of the top surface is formed with a cutting edge; and when viewed from a direction perpendicular to the installation surface, the cutting edge is rotated When the straight end of the shaft and the straight line of the rotating shaft are used as the reference line, the cutting edge cutter is provided so that the cutting edge is inclined in the range of 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft. Cutting the end face of the diaphragm laminate; and cutting the end face of the diaphragm by contacting the laminated body of the diaphragm with the rotating plurality of cutting edges in the sheet region passing through the horizontal plane of the rotating shaft The difference between the exit angle of the lower surface of the laminate in which the cutting edge is brought into contact with the diaphragm and the upper surface of the laminate which is in contact with the cutting edge is 45 degrees or less.

因此,薄片區域包含上述水平面,故(1)可於通過中心點的水平面附近、亦即端面加工用切刀的中心部附近進行層積體的端面加工。藉此可將通過旋轉體的中心點之區域應用於端面加工,並可確保廣泛之薄片區域;(2)再者,由於在切削刀刃設有傾斜,故切削刀刃係以平緩的角度接觸層積體並進行切削。從而,發揮能確保廣泛之薄片區域,並且一邊抑制於層積體產生缺陷、損傷等,一邊進行端面的加工的效果。Therefore, since the sheet region includes the horizontal surface, (1) the end surface of the laminate can be processed in the vicinity of the horizontal plane passing through the center point, that is, in the vicinity of the center portion of the cutter for end surface processing. Thereby, the region passing through the center point of the rotating body can be applied to the end surface processing, and a wide area of the sheet can be ensured; (2) Furthermore, since the cutting edge is inclined, the cutting edge contacts the lamination at a gentle angle. Body and cut. Therefore, the effect of processing the end faces while suppressing occurrence of defects, damage, and the like in the laminate is exhibited.

(膜片之端面加工用切刀)(Cutter for end face processing of diaphragm)

如依據第1圖到第5圖說明本發明的一實施形態,則係如下文所述。首先,說明關於本發明的端面加工用切刀。第1圖(a)係顯示端面加工用切刀之側面圖,第1圖(b)係顯示端面加工用切刀之正面圖。旋轉體10係固定於支持台10a,且將旋轉軸A做為軸往一方向旋轉。此外,旋轉體10係形成為圓盤形狀,然並非限於該圓盤形狀者。An embodiment of the present invention will be described below with reference to Figs. 1 to 5 as follows. First, the cutter for end face machining of the present invention will be described. Fig. 1(a) is a side view showing a cutter for end face machining, and Fig. 1(b) is a front view showing a cutter for end face machining. The rotating body 10 is fixed to the support table 10a, and rotates the rotating shaft A as a shaft in one direction. Further, the rotating body 10 is formed in a disk shape, but is not limited to the disk shape.

切削部1a係設於對於旋轉體10的旋轉軸A垂直的設置面(第1圖的S)(切削部1b至1f亦同)。切削部1a係於上述設置面內具有切削刀刃B。切削刀刃B係為切削部1a的刀刃部分,並以此部分進行膜片端面的切削。切削刀刃B雖係設於上述設置面,然由於有與膜片接觸的必要,故設於離開切削面S的設置面。設置面與切削面S的距離係可依據膜片的尺寸等適當地進行變更。此外,在從上方(沿著旋轉軸A)觀看前述設置面時(例如第1圖(b)),切削部係具有屬於頂面的切削部1a至1f,而切削部1a通常係作成為矩形形狀,且切削刀刃B係形成於短邊的位置。在此所說的短邊係指在切削部1a至1f為矩形形狀時之任一個與長邊相接的短邊(寬度)。此外,所謂的切削刀刃B的端部係指在切削部1a為矩形形狀時,切削刀刃B之中與長邊相接的部分。此外,切削部1a通常係為矩形形狀,然並不限於此,亦可為正方形形狀。The cutting portion 1a is provided on an installation surface (S in the first drawing) perpendicular to the rotation axis A of the rotating body 10 (the same applies to the cutting portions 1b to 1f). The cutting portion 1a has a cutting edge B in the installation surface. The cutting edge B is a blade portion of the cutting portion 1a, and the end face of the diaphragm is cut by this portion. Although the cutting edge B is provided on the above-described installation surface, it is provided on the installation surface which is apart from the cutting surface S because it is required to be in contact with the diaphragm. The distance between the installation surface and the cutting surface S can be appropriately changed depending on the size of the diaphragm or the like. Further, when the installation surface is viewed from above (along the rotation axis A) (for example, FIG. 1(b)), the cutting portion has the cutting portions 1a to 1f belonging to the top surface, and the cutting portion 1a is usually made into a rectangular shape. The shape is such that the cutting edge B is formed at the position of the short side. The short side referred to herein means a short side (width) in which any one of the cutting portions 1a to 1f has a rectangular shape and is in contact with the long side. Further, the end portion of the cutting edge B refers to a portion of the cutting edge B that is in contact with the long side when the cutting portion 1a has a rectangular shape. Further, the cutting portion 1a is generally rectangular in shape, but is not limited thereto, and may have a square shape.

切削部1a至1f係相互地以等間隔設置,且將連續的三片(切削部1a至1c及切削部1d至1f)分別當作一組,並以相距旋轉軸A之距離依序縮短的方式配置。亦即,對於切削部1a,位於旋轉體10的旋轉方向之相反側的切削部1b,其相距旋轉軸A的距離係較切削部1a短。此外,對於切削部1b,位於旋轉體10的旋轉方向之相反側的切削部1c,其相距旋轉軸A的距離係較切削部1b短。如此配置有三片切削部1a至切削部1c,並再於以切削部1a至1c的旋轉軸A的位置當作中心點180度旋轉之對稱位置,配置有另一組切削部1d至1f。此外,切削部1a至1c從切削面S的突出量(高度)係依此順序變大。依據此形狀,切削部1a係相距旋轉軸A的距離最長且從切削面S的突出量最小,切削部1c係相距旋轉軸A的距離最短且從切削面S的突出量最大。The cutting portions 1a to 1f are disposed at equal intervals to each other, and the three consecutive pieces (the cutting portions 1a to 1c and the cutting portions 1d to 1f) are respectively regarded as a group, and are sequentially shortened by the distance from the rotation axis A. Mode configuration. That is, in the cutting portion 1a, the cutting portion 1b located on the opposite side to the rotation direction of the rotating body 10 is shorter than the cutting portion 1a by the distance from the rotating shaft A. Further, in the cutting portion 1b, the cutting portion 1c located on the opposite side to the rotation direction of the rotating body 10 is shorter than the cutting portion 1b by the distance from the rotating shaft A. The three cutting portions 1a to the cutting portion 1c are disposed in this manner, and the other cutting portions 1d to 1f are disposed at the symmetrical positions at which the positions of the rotating axes A of the cutting portions 1a to 1c are rotated by 180 degrees as the center point. Further, the amount of protrusion (height) of the cutting portions 1a to 1c from the cutting surface S is increased in this order. According to this shape, the cutting portion 1a has the longest distance from the rotating shaft A and the smallest amount of protrusion from the cutting surface S, and the cutting portion 1c has the shortest distance from the rotating shaft A and the largest amount of protrusion from the cutting surface S.

接著,在對於旋轉體10的旋轉軸A垂直的垂直面,將通過切削刀刃B的旋轉軸側的端部及旋轉軸A的直線做為基準線時,切削部1a至1c及切削部1d至1f各自的切削刀刃的方向,係朝旋轉體10之旋轉方向傾斜30度(第1圖(b)中的傾斜角θ1=30度)。換言之,切削部1a至1c及切削部1d至1f各自的長邊的方向係從旋轉方向往內側傾斜30度。傾斜角θ1係不限定於30度,只要是20度以上、35度以下的範圍即可。此外,切削部1a、1b、1c、1d及1e係粗略切削用的切削刀刃,並由多結晶鑽石所構成。另一方面,切削部1c及切削部1f係修整用的切削刀刃,並由單結晶鑽石所構成。Then, when a straight line passing through the end portion on the rotating shaft side of the cutting edge B and the rotating shaft A is used as a reference line on the vertical surface perpendicular to the rotation axis A of the rotating body 10, the cutting portions 1a to 1c and the cutting portion 1d are The direction of each of the cutting edges of 1f is inclined by 30 degrees toward the rotation direction of the rotating body 10 (the inclination angle θ1 in the first drawing (b) = 30 degrees). In other words, the directions of the long sides of the cutting portions 1a to 1c and the cutting portions 1d to 1f are inclined by 30 degrees from the rotation direction to the inside. The inclination angle θ1 is not limited to 30 degrees, and may be in a range of 20 degrees or more and 35 degrees or less. Further, the cutting portions 1a, 1b, 1c, 1d, and 1e are rough cutting cutting edges and are composed of polycrystalline diamond. On the other hand, the cutting portion 1c and the cutting portion 1f are cutting edges for dressing, and are composed of single crystal diamonds.

第2圖係顯示將切削部1a安裝到旋轉體10的部分之構造。切削部1a係透過台座20安裝到旋轉體10。台座20係於圓柱形狀的軀幹部21的側面具有能收納切削部1a的寬度之溝槽部22,並於上端具備有凸緣部23。此外,在旋轉體10的切削面S設有與軀幹部21的剖面形狀相同形狀的安裝孔11,並再以將安裝孔11分成兩等份的方式設置有安裝溝槽12。當安裝切削部1a時,將切削部1a予以嵌入台座20的溝槽部22,並藉由安裝螺栓24固定。Fig. 2 shows a configuration in which the cutting portion 1a is attached to a portion of the rotating body 10. The cutting portion 1a is attached to the rotating body 10 through the pedestal 20. The pedestal 20 has a groove portion 22 that can accommodate the width of the cutting portion 1a on the side surface of the cylindrical trunk portion 21, and a flange portion 23 at the upper end. Further, a mounting hole 11 having the same shape as that of the trunk portion 21 is provided on the cutting surface S of the rotating body 10, and the mounting groove 12 is further provided to divide the mounting hole 11 into two equal parts. When the cutting portion 1a is mounted, the cutting portion 1a is fitted into the groove portion 22 of the pedestal 20 and fixed by the mounting bolt 24.

接著,當將安裝有切削部1a的台座20之軀幹部21嵌入於旋轉體10的安裝孔11時,藉由凸緣部23卡止於安裝孔11的周緣部。即使在將軀幹部21嵌入於安裝孔11的狀態下台座20也能夠旋轉,故可任意地調整切削部1a的方向。在決定了切削部1a的方向後,安裝溝槽12係藉由鎖固螺栓13進行往關閉的方向的鎖固,藉此將台座20固定於旋轉體10,而完成切削部1a的安裝。Next, when the trunk portion 21 of the pedestal 20 to which the cutting portion 1a is attached is fitted into the mounting hole 11 of the rotating body 10, the flange portion 23 is locked to the peripheral edge portion of the mounting hole 11. Even when the trunk portion 21 is fitted into the attachment hole 11, the pedestal 20 can be rotated, so that the direction of the cutting portion 1a can be arbitrarily adjusted. After the direction of the cutting portion 1a is determined, the mounting groove 12 is locked in the closing direction by the locking bolt 13, whereby the pedestal 20 is fixed to the rotating body 10, and the mounting of the cutting portion 1a is completed.

此外,該端面加工用切刀的直徑係為250mm,然上述距離並沒有特別受到限定。雖依據構成旋轉體10的材料而不同,但就一例而言,可設定為150mm以上、600mm以下。Further, the diameter of the cutter for end face machining is 250 mm, but the above distance is not particularly limited. Although it differs depending on the material constituting the rotating body 10, for example, it can be set to 150 mm or more and 600 mm or less.

此外,切削部1a及1d、切削部1b及1e、切削部1c及1f分別為相同形狀,並以垂直面的旋轉軸A的位置做為中心點而形成線對稱。藉此,端面加工用切刀的平衡受到保持。如此,只要能保持端面加工用切刀的平衡,切削刀刃的片數並無特別限制,而可變更為4片、6片、8片、9片、10片或12片等。本實施形態的端面加工用切刀係可使用在下文所述的端面加工方法。Further, the cutting portions 1a and 1d, the cutting portions 1b and 1e, and the cutting portions 1c and 1f have the same shape, respectively, and line symmetry is formed with the position of the rotation axis A of the vertical plane as a center point. Thereby, the balance of the cutter for end face machining is maintained. As described above, the number of the cutting edges is not particularly limited as long as the balance of the end face machining cutters can be maintained, and the number of the cutting edges can be changed to four, six, eight, nine, ten or twelve. The end face machining method according to the present embodiment can be used in the end face machining method described below.

(膜片之端面加工方法)(Processing method of end face of diaphragm)

接著,使用具備有本發明的端面加工用切刀的加工機(端面加工機),依據第3圖,說明對將由光學薄膜多片重疊所構成的偏光板予以層積的層積體的端面進行加工的的實際的端面加工方法。第3圖係顯示本發明的加工機(端面加工機)之斜視圖。Next, using a processing machine (end surface processing machine) including the cutter for end surface processing of the present invention, an end surface of a laminate in which a polarizing plate composed of a plurality of optical thin films is stacked is described in accordance with FIG. The actual end face machining method for machining. Fig. 3 is a perspective view showing the processing machine (end face processing machine) of the present invention.

層積體W係將長方形的膜片重疊所形成的長方體形,並藉由支持裝置30所支持。就上述膜片而言係沒有特別受到限定,可列舉:聚乙烯醇系膜片、三乙醯基纖維素膜片所代表的纖維素系膜片、乙烯醋酸乙烯系的膜片等,而沒有特別受到限定,此外,由於由複數層光學薄膜所構成的偏光板一片的厚度係較厚,故做為能進行大量的膜片之端面加工的本發明的加工機的加工對象更為理想。The laminate W is a rectangular parallelepiped shape in which rectangular diaphragms are stacked, and is supported by the support device 30. The film is not particularly limited, and examples thereof include a polyvinyl alcohol film, a cellulose film represented by a triethylene glycol film, and an ethylene vinyl acetate film. In particular, since the thickness of one of the polarizing plates composed of the plurality of optical films is thick, it is more preferable to process the processing machine of the present invention capable of performing a large number of end face processing of the film.

支持裝置30係於平板形的基盤(移動裝置)31上設有門形的邊框32。接著用以在基盤31上旋轉的工作台33係於邊框32的對向的位置設有上下移動的圓柱體34,層積體W係透過機架(jig)35夾持並固定於工作台33及圓柱體34。The support device 30 is provided with a gate-shaped frame 32 on a flat-shaped base plate (moving device) 31. Next, the table 33 for rotating on the base plate 31 is provided with a cylindrical body 34 that moves up and down at a position opposite to the frame 32. The laminated body W is sandwiched and fixed to the table 33 by a jig 35. And the cylinder 34.

於基盤31的兩側,以相互對的方式設有具有上述旋轉體10的切刀(膜片之端面加工用切刀)100。切刀100係可配合層積體W的大小朝旋轉軸方向移動,基盤31係能以通過切刀100彼此之間的方式移動。在切削時係將層積體W固定於支持裝置30,並藉由基盤31將切刀100往配合層積體W的大小之位置移動。接著使旋轉體10旋轉,並以通過相對向的切刀100彼此之間的方式使基盤31移動。A cutter (a cutter for end face processing of a diaphragm) 100 having the above-described rotor 10 is provided on both sides of the base plate 31 so as to face each other. The cutter 100 is movable in the direction of the rotation axis in accordance with the size of the laminate W, and the base 31 is movable in such a manner as to pass through the cutters 100. At the time of cutting, the laminated body W is fixed to the supporting device 30, and the cutting blade 100 is moved to the position of the size of the mating laminated body W by the base 31. The rotating body 10 is then rotated, and the base 31 is moved by passing the opposing cutters 100 to each other.

此時,首先,位於切刀100的最外側的切削部1a及切削部1d係相接於層積體W,並切削其端面。當基盤31運行時,接著設於比切削部1a及1d更內側之位置的切削部1b及1e相接於層積體W。由於切削部1b及1e之突出量係較切削部1a及1c的突出量大,故對藉由切削部1a及1c所切削的端面進一步進行切削。如此,切削部1a、1b、1d及1e緩緩地深深對層積體W的端面進行切削。最後,具有單結晶鑽石之刀刃的修整用的切削部1c及1f係對層積體W的端面進行切削,並進行鏡面修整。如此,完成一組相對向的端面的處理後,使工作台33旋轉,並處理其他的端面。實際上雖在這些裝置附屬有驅動裝置及控制部等,惟在此省略之。At this time, first, the cutting portion 1a and the cutting portion 1d located at the outermost side of the cutter 100 are in contact with the laminated body W, and the end faces thereof are cut. When the base 31 is operated, the cutting portions 1b and 1e which are provided at positions further inside than the cutting portions 1a and 1d are in contact with the laminated body W. Since the amount of protrusion of the cutting portions 1b and 1e is larger than the amount of protrusion of the cutting portions 1a and 1c, the end faces cut by the cutting portions 1a and 1c are further cut. In this way, the cutting portions 1a, 1b, 1d, and 1e gradually cut the end faces of the laminated body W deeply. Finally, the cutting portions 1c and 1f for trimming the blade having the single crystal diamond cut the end surface of the laminate W and perform mirror finishing. Thus, after the processing of a pair of opposing end faces is completed, the table 33 is rotated and the other end faces are processed. Actually, the drive device, the control unit, and the like are attached to these devices, but they are omitted here.

此外,本發明的端面加工用切刀係不限於上述實施形態者,例如切削刀刃的突出量及相距旋轉軸的距離亦可在各個切削刀刃皆相同。此外,切削刀刃的傾斜角亦可在各切削刀刃皆相異。Further, the cutter for end face machining of the present invention is not limited to the above embodiment, and for example, the amount of protrusion of the cutting edge and the distance from the rotation axis may be the same for each cutting edge. In addition, the cutting angle of the cutting edge can also be different at each cutting edge.

接著,說明關於該端面加工方法之特徵事項。於本說明中,使用顯示於第3圖、具備有30度傾斜的切削部的加工機加以說明,然亦可使用傾斜角不同的其他加工機來實施該端面加工方法。Next, the features of the end face processing method will be described. In the present description, a description will be given using a processing machine shown in Fig. 3 and having a cutting portion having a 30-degree inclination, but the end surface processing method may be carried out using another processing machine having different inclination angles.

使用第4圖,說明層積體W與切刀100(切削刀刃B)的位置關係。第4圖係顯示從切刀100的正面方向觀看時切刀100與層積體W的位置關係之圖式。在第4圖中,為了方便說明,僅圖示切削部1a,並顯示切削部1a從上方繞順時鐘方向移動的狀態。如第4圖所示,在對於旋轉體的旋轉軸垂直的設置面內,在從對於設置面垂直之方向觀看切削刀刃B之情形下,將通過上述切削刀刃B之旋轉軸側的端部E及旋轉軸A的直線做為基準線R時,切削刀刃B係設置為傾斜成20度以上、35度以下的範圍。亦即,θ1係為20度以上、35度以下的範圍。The positional relationship between the laminated body W and the cutter 100 (cutting edge B) will be described using Fig. 4 . Fig. 4 is a view showing the positional relationship between the cutter 100 and the laminated body W when viewed from the front direction of the cutter 100. In the fourth drawing, for the sake of convenience of explanation, only the cutting portion 1a is illustrated, and the state in which the cutting portion 1a is moved from the upper side in the clockwise direction is displayed. As shown in Fig. 4, in the arrangement plane perpendicular to the rotation axis of the rotating body, when the cutting edge B is viewed from the direction perpendicular to the installation surface, the end portion E passing through the rotation axis side of the cutting blade B is passed. When the straight line of the rotation axis A is used as the reference line R, the cutting edge B is set to have a range of inclination of 20 degrees or more and 35 degrees or less. That is, θ1 is in a range of 20 degrees or more and 35 degrees or less.

藉由該切削刀刃B的配置,將屬於端面加工對象的層積體W設置於包含通過旋轉軸A的中心點O的區域時,能以平緩的角度使切削刀刃B接觸於層積體W。結果,能對於層積體W的端面一邊抑制缺陷或損傷,一邊進行端面加工。亦即,能對於膜片之端面,一邊抑制破裂的產生一邊進行端面加工。此外,可將通過旋轉體之中心點O的區域應用在端面加工,並可確保較寬廣之能進行端面加工的範圍。When the laminated body W to be subjected to the end surface processing is placed in the region including the center point O passing through the rotation axis A by the arrangement of the cutting edge B, the cutting edge B can be brought into contact with the laminated body W at a gentle angle. As a result, it is possible to perform end surface processing while suppressing defects or damage to the end faces of the laminate W. In other words, it is possible to perform end surface processing on the end surface of the diaphragm while suppressing the occurrence of cracking. In addition, the area passing through the center point O of the rotating body can be applied to the end face processing, and a wide range of end face machining can be ensured.

上述傾斜角θ1更佳為25度以上、30度以下。若在上述的範圍內,則能以更平緩的角度使切削刀刃B接觸於膜片。從而,可對於膜片之端面更進一步地抑制缺裂或損傷。The above inclination angle θ1 is more preferably 25 degrees or more and 30 degrees or less. If it is within the above range, the cutting edge B can be brought into contact with the diaphragm at a gentler angle. Thereby, the crack or damage can be further suppressed to the end face of the diaphragm.

如同使用第3圖所說明的內容,固定於支持裝置30的層積體W係在切刀100附近的預定區域移動。將該預定區域稱做薄片區域40。薄片區域40係包含通過中心點O(位於旋轉軸A)之水平面的區域,且為供加工用的膜片層積體的端面(層積體W的厚度)。薄片區域40係配置有層積體W的場所,而層積體W的至少一部份係配置於膜片區域40,層積體W的端面係藉由切削刀刃B所切削。As described using FIG. 3, the laminate W fixed to the support device 30 is moved in a predetermined region in the vicinity of the cutter 100. This predetermined area is referred to as a sheet area 40. The sheet region 40 includes a region passing through the horizontal point of the center point O (located on the rotation axis A) and is an end surface (thickness of the laminate W) of the film laminate for processing. The sheet region 40 is a place where the laminate W is disposed, and at least a portion of the laminate W is disposed in the diaphragm region 40, and the end faces of the laminate W are cut by the cutting edge B.

上述薄片區域40的位置係受到切削刀刃B的侵入角θ2及出口角θ3所限定。侵入角θ2係切削刀刃B接觸於層積體W的上表面的角度,而出口角θ3係切削刀刃B接觸於層積體W的下表面的角度。The position of the sheet region 40 is defined by the intrusion angle θ2 and the exit angle θ3 of the cutting edge B. The intrusion angle θ2 is an angle at which the cutting edge B comes into contact with the upper surface of the laminated body W, and the exit angle θ3 is an angle at which the cutting edge B contacts the lower surface of the laminated body W.

於本端面加工方法中,本發明的切刀100係以切削刀刃B傾斜於旋轉體10的旋轉方向的方式設置,薄片區域40的出口角θ3與侵入角θ2的差為45度以下。在第1表顯示出口角θ3與侵入角θ2的差為45度時的各角度。In the present end face machining method, the cutter 100 of the present invention is provided such that the cutting edge B is inclined to the rotation direction of the rotary body 10, and the difference between the exit angle θ3 of the sheet region 40 and the penetration angle θ2 is 45 degrees or less. In the first table, each angle when the difference between the exit angle θ3 and the penetration angle θ2 is 45 degrees is displayed.

出口角θ3與侵入角θ2之差的下限係藉由減少薄片區域40的高度而接近於0度左右,惟從加工多片膜片的角度來看,下限較佳為傾斜角的角度以上。亦即,傾斜角θ1為25度時,出口角θ3與侵入角θ2的差較佳為25度以上,侵入角θ2為30度時,出口角θ3與侵入角θ2的差較佳為30度以上。若為上述下限,則可如後文所述再將切削刀刃B的間距(pitch)之差異縮小,並可使膜片端面的品質更均一。 The lower limit of the difference between the exit angle θ3 and the intrusion angle θ2 is close to about 0 degrees by reducing the height of the sheet region 40. However, from the viewpoint of processing a plurality of sheets, the lower limit is preferably equal to or greater than the angle of the tilt angle. That is, when the inclination angle θ1 is 25 degrees, the difference between the exit angle θ3 and the penetration angle θ2 is preferably 25 degrees or more, and when the penetration angle θ2 is 30 degrees, the difference between the exit angle θ3 and the penetration angle θ2 is preferably 30 degrees or more. . If it is the above lower limit, the difference in the pitch of the cutting edge B can be reduced as will be described later, and the quality of the end face of the diaphragm can be made uniform.

藉由以上述方式限定薄片區域40,(1)可於通過中心點O的水平面附近、亦即切刀100的中心部附近進行層積體W的端面加工。也就是,如同記載於JP2007-223021-A的切削加工方法,薄片區域40係不限定於切刀100的下側。藉此,可將通過中心點O的區域應用於端面加工,並可確保較寬廣的薄片區域40。再者,(2)因為於切削刀刃B設有傾斜,故切削刀刃B係以平緩的角度接觸層積體W並進行切削。從而,確保較寬廣的薄片區域40,並且能對於層積體W一邊抑制缺陷、損傷等的產生一邊進行端面的加工。 By defining the sheet region 40 in the above manner, (1) the end surface processing of the laminate W can be performed in the vicinity of the horizontal plane passing through the center point O, that is, in the vicinity of the center portion of the cutter 100. That is, as in the cutting method described in JP2007-223021-A, the sheet region 40 is not limited to the lower side of the cutter 100. Thereby, the area passing through the center point O can be applied to the end face processing, and a wider sheet area 40 can be secured. Further, (2) since the cutting edge B is inclined, the cutting edge B contacts the laminated body W at a gentle angle and performs cutting. Therefore, the wide sheet region 40 is ensured, and the end face can be processed while suppressing the occurrence of defects, damage, and the like to the laminate W.

此外,侵入角θ2較佳係設定為9度以上、14度以下。 藉此,可使以平緩的角度切削刀刃B接觸於層積體W的上表面。結果,能對於膜片之端面一邊抑制缺陷或損傷一邊進行端面的加工。亦即,能對於膜片之端面一邊抑制破裂的產生一邊進行端面加工。 Further, the intrusion angle θ2 is preferably set to be 9 degrees or more and 14 degrees or less. Thereby, the cutting edge B can be brought into contact with the upper surface of the laminated body W at a gentle angle. As a result, the end surface can be processed while suppressing defects or damage to the end faces of the diaphragm. In other words, the end surface processing can be performed while suppressing the occurrence of cracks on the end faces of the diaphragm.

此外,層積體W藉由切刀100而受到端面加工時對於層積體W的切削刀刃B之各間距係通過穿通中心點O的水平面,因此間距的一部份係成為上下對稱的間距。對此,如JP2007-223021-A的第2圖所示,將層積體W沿著切刀100的下部配置時,切削刀刃B的間距係未通過穿通中心點O的水平面,而成為越接近下方越狹窄之間距。 Further, the laminated body W is subjected to the end surface processing by the cutting blade 100, and the pitch of the cutting edge B of the laminated body W passes through the horizontal plane passing through the center point O, so that a part of the pitch becomes a vertically symmetrical pitch. On the other hand, as shown in Fig. 2 of JP2007-223021-A, when the laminated body W is disposed along the lower portion of the cutter 100, the pitch of the cutting edge B does not pass through the horizontal plane passing through the center point O, but becomes closer. The narrower the distance between the lower.

亦即,在本發明的端面加工方法中,薄片區域40包含通過中心點0的水平面,故間距彼此的尺寸差異層變小。各間距的尺寸變得更加均一。因此,有不容易於端面加工後的端面的各部分產生品質差異的優點。 That is, in the end face processing method of the present invention, since the sheet region 40 includes the horizontal plane passing through the center point 0, the size difference layer between the pitches becomes small. The size of each pitch becomes more uniform. Therefore, there is an advantage that it is not easy to produce a quality difference in each portion of the end surface after the end surface processing.

接著,說明關於薄片區域40的距離X1、X2及Y。距離X1係顯示薄片區域40之中上部區域距離通過中心點O的水平面的高度。另一方面,距離X2係顯示薄片區域40之中下部區域距離通過中心點O的水平面的高度,然為與距離X1相同的距離。此外,距離Y係顯示薄片區域40之中下部區域距離通過中心點O的水平面的高度。切削刀刃B係將基準線R做為基準,朝旋轉體10的旋轉方向設有30度的傾斜。 Next, the distances X1, X2, and Y regarding the sheet region 40 will be described. The distance X1 shows the height of the upper region of the sheet region 40 from the horizontal plane passing through the center point O. On the other hand, the distance X2 indicates that the lower portion of the sheet region 40 is at a distance from the horizontal plane passing through the center point O, but is the same distance as the distance X1. Further, the distance Y indicates the height of the lower portion of the sheet region 40 from the horizontal plane passing through the center point O. The cutting edge B has a reference line R as a reference and is inclined at 30 degrees toward the rotation direction of the rotating body 10.

於第4圖係顯示:(1)將距離X1、X2兩者設定為28mm時的出口角θ3;以及(2)將距離X1設定為28mm、並將距離Y設定為62mm時的出口角θ3。Fig. 4 shows: (1) an exit angle θ3 when the distances X1 and X2 are both set to 28 mm; and (2) an exit angle θ3 when the distance X1 is set to 28 mm and the distance Y is set to 62 mm.

首先,(1)的情形,可將侵入角θ2設定為14度、並將出口角θ3設定為46度。亦即傾斜角θ1為30度,而出口角θ3與侵入角θ2的差為約32度,故可使切削刀刃B的間距之差異更加縮小,並可使膜片端面的品質更加均一。另一方面,(2)的情形,可將侵入角θ2設定為14度、並將出口角θ3設定為59度,出口角θ3與侵入角θ2的差為45度。如此,將出口角θ3設定為較大時,可將薄片區域40的寬度設定為較大,並可處理大量的層積體W的端面。此外,此時距離Z為63mm。上述距離X1、X2及Y當然不被限定於上述的值,侵入角θ2及θ3只要是上述的範圍內即可變更。First, in the case of (1), the intrusion angle θ2 can be set to 14 degrees, and the exit angle θ3 can be set to 46 degrees. That is, the inclination angle θ1 is 30 degrees, and the difference between the exit angle θ3 and the penetration angle θ2 is about 32 degrees, so that the difference in the pitch of the cutting edge B can be further reduced, and the quality of the end face of the diaphragm can be made more uniform. On the other hand, in the case of (2), the intrusion angle θ2 can be set to 14 degrees, the exit angle θ3 can be set to 59 degrees, and the difference between the exit angle θ3 and the intrusion angle θ2 is 45 degrees. As described above, when the exit angle θ3 is set to be large, the width of the sheet region 40 can be set large, and a large number of end faces of the laminate W can be processed. Further, at this time, the distance Z is 63 mm. The distances X1, X2, and Y are of course not limited to the above values, and the intrusion angles θ2 and θ3 may be changed as long as they are within the above range.

此外,例如將基準線R做為基準,使切削刀刃B朝旋轉體10的旋轉方向傾斜30度時,將侵入角θ2設定為14度、並將出口角θ3設定為59度,故可將距離X1及X2設定為28mm、將距離Y設定為62mm(旋轉體10的直徑R1為250mm)。此外,變更了距離R1時,可由「距離X1(mm)=0.13×R1(mm)-4.5(mm)」、「距離X2(mm)=0.13×R1(mm)-4.5(mm)」、以及「距離Y(mm)=0.24×R1(mm)+2(mm)」的兩式計算出距離X1、X2及距離Y,並可將侵入角θ2維持在14度、將出口角θ3維持在59度之情形下變更距離R1。Further, for example, when the cutting edge B is inclined by 30 degrees toward the rotation direction of the rotating body 10 with the reference line R as a reference, the penetration angle θ2 is set to 14 degrees, and the exit angle θ3 is set to 59 degrees, so that the distance can be set. X1 and X2 are set to 28 mm, and the distance Y is set to 62 mm (the diameter R1 of the rotating body 10 is 250 mm). Further, when the distance R1 is changed, "distance X1 (mm) = 0.13 × R1 (mm) - 4.5 (mm)", "distance X2 (mm) = 0.13 × R1 (mm) - 4.5 (mm)", and The two equations of "distance Y (mm) = 0.24 × R1 (mm) + 2 (mm)" calculate the distances X1, X2 and the distance Y, and maintain the intrusion angle θ2 at 14 degrees and the exit angle θ3 at 59. Change the distance R1 in the case of degrees.

以上述方式切削層積體W時,相較於使用習知之具有傾斜角0度(與旋轉體的垂直面的圓之直徑方向相同之方向)之切削刀刃的切刀時,能減少對脆弱層造成的損傷。再者,依據本發明的切刀100,相較於習知的切刀,即使在切削厚度較厚的層積體時也可穩定地生產良品(裂縫在能充分被容許的區域內者)。When the laminated body W is cut in the above manner, the fragile layer can be reduced as compared with the conventional cutting blade having a cutting edge having an inclination angle of 0 degrees (the same direction as the diameter of the circle of the vertical surface of the rotating body) Damage caused. Further, according to the cutter 100 of the present invention, it is possible to stably produce a good product (the crack is in a region which can be sufficiently tolerated) even when a thick laminated body is cut as compared with the conventional cutter.

具體來說,在藉由具有直徑250mm之旋轉體的切刀進行切削時,習知厚度40mm左右的層積體的切削已經到達極限,然而將切削刀刃的傾斜角設定為30度時,可切削厚度100mm左右的層積體。亦即,生產效率提升了2.5倍。此外,也可藉由與上述同樣的方法切削丙烯基(acrylic)樹脂等的堅硬材料,與使用習知的切刀時做比較,可減低缺陷的產生。Specifically, when cutting by a cutter having a rotating body having a diameter of 250 mm, the cutting of a conventional laminated body having a thickness of about 40 mm has reached the limit, but when the inclination angle of the cutting edge is set to 30 degrees, the cutting is possible. A laminate having a thickness of about 100 mm. That is, the production efficiency has increased by 2.5 times. Further, it is also possible to cut a hard material such as an acrylic resin by the same method as described above, and it is possible to reduce the occurrence of defects as compared with the case of using a conventional cutter.

此外,本發明係不限定於上述的各實施形態,而可在申請專利範圍所示的範圍內進行各種各樣的變更,關於將不同的實施形態所分別揭露的技術手段予以適當地組合所得的實施形態,亦包含於本發明的技術範圍。In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the technical means disclosed in the different embodiments can be combined as appropriate. The embodiment is also included in the technical scope of the present invention.

(實施例)(Example)

於本實施例中,使用切刀100進行膜片的端面加工。如第5圖所示,依實施例將切刀100的切削刀刃B予以變更為前傾,在比較例中變更為前傾或後傾。所謂前傾係指切削刀刃B在旋轉體10的旋轉方向傾斜之狀態,所謂後傾係指切削刀刃B在與旋轉體10之旋轉方向相反之方向傾斜的狀態。為了方便說明,於第5圖係僅顯示切刀100的切削部1a,並省略台座等構件。In the present embodiment, the end face processing of the diaphragm is performed using the cutter 100. As shown in Fig. 5, the cutting edge B of the cutter 100 is changed to the forward tilt according to the embodiment, and is changed to the forward tilt or the backward tilt in the comparative example. The forward tilting refers to a state in which the cutting edge B is inclined in the rotation direction of the rotating body 10, and the backward tilting refers to a state in which the cutting edge B is inclined in a direction opposite to the rotating direction of the rotating body 10. For convenience of explanation, only the cutting portion 1a of the cutter 100 is shown in Fig. 5, and members such as a pedestal are omitted.

(第一實施例)(First Embodiment)

於第3圖所示的加工機中,將旋轉體10的設置面的基準線R做為基準,使切削刀刃B朝旋轉體10的旋轉方向傾斜30度(第5圖所示的前傾之狀態)。此外,旋轉體10的直徑為250mm、層積體W的「距離X1+距離Y」為90mm、距離X1為28mm、而距離Y為62mm。就其他的條件而言,使層積體W對於切刀100往水平方向移動的傳送速度係0.5m/min,並將切刀100之旋轉數設為4800rpm,將對於層積體W的夾壓(clamping pressure)設定為0.15MPa。In the processing machine shown in FIG. 3, the cutting edge B is inclined by 30 degrees toward the rotation direction of the rotating body 10 with respect to the reference line R of the installation surface of the rotating body 10 (the forward tilt shown in FIG. 5) status). Further, the diameter of the rotating body 10 is 250 mm, and the "distance X1 + distance Y" of the laminated body W is 90 mm, the distance X1 is 28 mm, and the distance Y is 62 mm. For other conditions, the conveying speed of the laminate W to the horizontal direction of the cutter 100 is 0.5 m/min, and the number of rotations of the cutter 100 is set to 4800 rpm, and the laminated body W is nip. The clamping pressure was set to 0.15 MPa.

層積體W係為層積有300片之偏光板者。上述偏光板係由厚度0.1mm以上、0.4mm以下的光學薄膜以及保護薄膜(保護膜(protect film))所構成。The laminate W is a laminate in which 300 sheets of polarizing plates are laminated. The polarizing plate is composed of an optical film having a thickness of 0.1 mm or more and 0.4 mm or less and a protective film (protective film).

上述層積體W的尺寸係就52英尺尺寸而言,流動方向為約1500mm,而寬度方向為約830mm。流動方向的長度為相當於端面的長度。此外,於本實施例中雖使用上述尺寸的層積體W,然層積體W的尺寸係依據其用途,例如行動電話機、電視機、車用機器等適當地變更。The above-mentioned laminate W has a size of about 1500 mm in terms of a 52-foot size and a width direction of about 830 mm. The length of the flow direction is equivalent to the length of the end face. Further, in the present embodiment, the laminate W of the above-described size is used, and the size of the laminate W is appropriately changed depending on the application, such as a cellular phone, a television, a vehicle, and the like.

將層積體W的端面切削數mm,並從端面加工後的層積體W分成光學薄膜及保護薄膜的加工樣本,並進行了破裂試驗(cracking test)。The end surface of the laminate W was cut by several mm, and the laminated body W after the end surface processing was divided into processed samples of the optical film and the protective film, and a cracking test was performed.

<破裂試驗><rupture test>

於破裂試驗中,關於端面加工後的加工樣本,照射螢光燈,並使用放大鏡(loupe)以目視觀察破裂的狀態。將上述破裂試驗的結果表示於第2表In the rupture test, the processed sample after the end face processing was irradiated with a fluorescent lamp, and a loupe was used to visually observe the state of the rupture. The results of the above rupture test are shown in the second table.

(第二實施例)(Second embodiment)

將旋轉體10之設置面的基準線R做為基準,使切削刀刃B往旋轉體10的旋轉方向傾斜30度以外,係與第一實施例相同地進行端面加工。對於所得到的樣本,與第一實施例相同地進行破裂試驗,並將結果顯示於第2表。The end surface processing was performed in the same manner as in the first embodiment except that the cutting blade B was inclined by 30 degrees to the rotation direction of the rotating body 10 with reference to the reference line R of the installation surface of the rotating body 10. The obtained sample was subjected to a crack test in the same manner as in the first example, and the results were shown in the second table.

(第三實施例)(Third embodiment)

將旋轉體10之設置面的基準線R做為基準,使切削刀刃B往旋轉體10的旋轉方向傾斜25度以外,係與第一實施例相同地進行端面加工。對於所得到的樣本,與第一實施例相同地進行破裂試驗,並將結果顯示於第2表。The end surface processing was performed in the same manner as in the first embodiment except that the cutting blade B was inclined by 25 degrees to the rotation direction of the rotating body 10 with reference to the reference line R of the installation surface of the rotating body 10. The obtained sample was subjected to a crack test in the same manner as in the first example, and the results were shown in the second table.

(第四實施例)(Fourth embodiment)

將旋轉體10之設置面的基準線R做為基準,使切削刀刃B往旋轉體10的旋轉方向傾斜20度以外,係與第一實施例相同地進行端面加工。對於所得到的樣本,與第一實施例相同地進行破裂試驗,並將結果顯示於第2表。The end surface processing was performed in the same manner as in the first embodiment except that the cutting blade B was inclined by 20 degrees to the rotation direction of the rotating body 10 with reference to the reference line R of the installation surface of the rotating body 10. The obtained sample was subjected to a crack test in the same manner as in the first example, and the results were shown in the second table.

(第一比較例)(First comparative example)

使用第3圖所示的加工機,並將旋轉體10之設置面的基準線R做為基準,使切削刀刃B往與旋轉體10的旋轉方向相反之方向傾斜45度(第5圖所示之後傾的狀態)以外,係與第一實施例相同地進行端面加工。對於所得到的樣本,與第一實施例相同地進行破裂試驗,並將結果顯示於第2表。Using the processing machine shown in Fig. 3, the cutting edge B is inclined by 45 degrees in the direction opposite to the rotation direction of the rotating body 10 with reference to the reference line R of the setting surface of the rotating body 10 (Fig. 5). The end surface processing was performed in the same manner as in the first embodiment except for the state of the rear tilting. The obtained sample was subjected to a crack test in the same manner as in the first example, and the results were shown in the second table.

(第二比較例)(Second comparative example)

將旋轉體10之設置面的基準線R做為基準,使切削刀刃B往旋轉體10的旋轉方向傾斜45度以外,係與第一實施例相同地進行端面加工。對於所得到的樣本,與第一實施例相同地進行破裂試驗,並將結果顯示於第2表。The end surface processing was performed in the same manner as in the first embodiment except that the cutting blade B was inclined by 45 degrees to the rotation direction of the rotating body 10 with reference to the reference line R of the installation surface of the rotating body 10. The obtained sample was subjected to a crack test in the same manner as in the first example, and the results were shown in the second table.

由第2表的結果,關於破裂試驗,在第一至第四實施例中,傾斜角為35度、30度、25度、20度時,破裂係幾乎觀察不到,或完全觀察不到,關於層積體W的高度為90mm的大量的處理對象,可在幾乎不在端面產生損傷之情形下進行端面加工。尤其是如第二、第三實施例所示,在使傾斜角成為前傾25度及前傾30度時係完全觀察不到破裂,可進行非常良好的端面加工。再者,將第一實施例中進行端面處理的加工樣本的端面顯示於第6圖。第6圖係顯微鏡照片,得知幾乎不會產生破裂,也不會產生端面缺裂。As a result of the second table, in the first to fourth embodiments, in the first to fourth embodiments, when the inclination angle is 35 degrees, 30 degrees, 25 degrees, or 20 degrees, the fracture system is hardly observed, or is not observed at all. Regarding a large number of processing targets having a height of the laminated body W of 90 mm, end surface processing can be performed with almost no damage to the end faces. In particular, as shown in the second and third embodiments, when the inclination angle was 25 degrees forward and 30 degrees forward, no cracking was observed at all, and very good end surface machining was possible. Further, the end surface of the processed sample subjected to the end surface treatment in the first embodiment is shown in Fig. 6. Fig. 6 is a photomicrograph showing that there is almost no cracking and no end face cracking.

對於此,如第一、第二比較例將傾斜角設為45度時,觀察到樣本有一百個以上的破裂,或者是有一百個以上的無數個破裂。如此,當產生了許多破裂時,由於會成為端面缺裂的原因故較為不佳。如依據於本實施例所示之本發明的端面加工方法,可一邊抑制破裂的產生,一邊進行厚度為90mm的大量的層積體W的端面加工,本方法係非常地有用。In this case, when the inclination angle was set to 45 degrees in the first and second comparative examples, it was observed that the sample had more than one hundred cracks, or that there were more than one hundred innumerable cracks. Thus, when a lot of cracks are generated, it is not preferable because it may become a cause of cracking of the end face. According to the end surface processing method of the present invention shown in the present embodiment, it is possible to perform end surface processing of a large number of laminated bodies W having a thickness of 90 mm while suppressing the occurrence of cracking, and this method is very useful.

本發明尤其可大量進行偏光板等的膜片之端面加工,故可在偏光板等加工領域及使用做為偏光板的構件的領域廣泛地運用。In the present invention, in particular, the end face processing of a diaphragm such as a polarizing plate can be performed in a large amount, and therefore it can be widely applied in the field of processing such as a polarizing plate and the use of a member as a polarizing plate.

1a至1f...切削部1a to 1f. . . Cutting part

6...圓板狀本體6. . . Circular plate body

7...切削刀刃7. . . Cutting edge

10...旋轉體10. . . Rotating body

10a...支持台10a. . . Support desk

11...安裝孔11. . . Mounting holes

12...安裝溝槽12. . . Mounting groove

13...緊固螺栓13. . . Fastening bolt

20...台座20. . . Pedestal

21...軀幹部twenty one. . . Torso

22...溝槽部twenty two. . . Groove

23...凸緣部twenty three. . . Flange

24...安裝螺栓twenty four. . . Mounting bolt

30...支持裝置30. . . Support device

31...基盤(移動裝置)31. . . Base unit (mobile device)

32...邊框32. . . frame

33...工作台33. . . Workbench

34...圓柱體34. . . Cylinder

35...機架35. . . frame

40...薄片區域40. . . Sheet area

100...切刀100. . . Cutter

A...旋轉軸A. . . Rotary axis

B...切削刀刃B. . . Cutting edge

E...端部E. . . Ends

O...中心點O. . . Center point

R...基準線R. . . Baseline

S...切削面S. . . Cutting surface

W...層積體W. . . Laminated body

X1、X2、Y、Z...距離X1, X2, Y, Z. . . distance

θ1...傾斜角Θ1. . . Tilt angle

θ2...侵入角Θ2. . . Intrusion angle

θ3...出口角Θ3. . . Exit angle

第1圖(a)係顯示本實施形態的膜片之端面加工用切刀之側面圖,第1圖(b)係顯示本實施形態的膜片之端面加工用切刀之正面圖。Fig. 1(a) is a side view showing a cutter for end face machining of a diaphragm of the embodiment, and Fig. 1(b) is a front view showing a cutter for end face machining of the diaphragm of the embodiment.

第2圖係顯示第1圖的膜片之端面加工用切刀之切削部的安裝部分之斜視圖。Fig. 2 is a perspective view showing a mounting portion of a cutting portion of a cutter for end face machining of a diaphragm of Fig. 1.

第3圖係顯示本實施形態的端面加工機之斜視圖。Fig. 3 is a perspective view showing the end face processing machine of the embodiment.

第4圖係顯示關於本實施形態的膜片之端面加工用切刀,切削刀刃及層積體的位置關係之圖式。Fig. 4 is a view showing the positional relationship between the cutting blade and the laminated body for the end face machining blade of the diaphragm of the present embodiment.

第5圖係顯示實施例或比較例的切削刀刃的傾斜之圖式。Fig. 5 is a view showing the inclination of the cutting edge of the embodiment or the comparative example.

第6圖係顯示於本第一實施例中進行端面處理的加工樣本的端面之圖式。Fig. 6 is a view showing the end faces of the processed samples subjected to the end face treatment in the first embodiment.

1a、1f...切削部1a, 1f. . . Cutting part

10...旋轉體10. . . Rotating body

11...安裝孔11. . . Mounting holes

12...安裝溝槽12. . . Mounting groove

13...緊固螺栓13. . . Fastening bolt

20...台座20. . . Pedestal

21...軀幹部twenty one. . . Torso

22...溝槽部twenty two. . . Groove

23...凸緣部twenty three. . . Flange

24...安裝螺栓twenty four. . . Mounting bolt

B...切削刀刃B. . . Cutting edge

S...切削面S. . . Cutting surface

Claims (5)

一種膜片之端面加工用切刀,係具備有旋轉體、及設於對於旋轉體的旋轉軸垂直的設置面(第1圖的S)之複數個切削部,該膜片之端面加工用切刀的特徵為:上述複數個切削部係各自從設置面突出不同之突出量,且該切削部係具有頂面;於上述頂面的至少一邊形成有切削刀刃;在從對於設置面垂直之方向觀看切削刀刃的情形下,將通過上述切削刀刃之旋轉軸側的端部及旋轉軸之直線做為基準線時,上述切削刀刃係以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置。 A cutting blade for end face machining of a diaphragm includes a rotating body and a plurality of cutting portions provided on an installation surface (S in FIG. 1) perpendicular to a rotation axis of the rotating body, and the end surface of the diaphragm is cut. The knives are characterized in that each of the plurality of cutting portions protrudes differently from the installation surface, and the cutting portion has a top surface; at least one side of the top surface is formed with a cutting edge; in a direction perpendicular to the installation surface When the cutting edge is viewed, when the straight line passing through the end portion on the rotating shaft side of the cutting edge and the rotating shaft is used as the reference line, the cutting edge is 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft. The range is set in a tilted manner. 如申請專利範圍第1項所述之膜片之端面加工用切刀,其中,上述切削刀刃係以朝上述旋轉軸的旋轉方向在25度以上、30度以下的範圍內傾斜的方式設置。 The cutter for end face machining of a diaphragm according to the first aspect of the invention, wherein the cutting edge is provided to be inclined in a range of 25 degrees or more and 30 degrees or less in a rotation direction of the rotation axis. 一種膜片之端面加工機,係具備有申請專利範圍第1項或第2項所述之膜片之端面加工用切刀、及用以支持膜片之層積體的支持裝置,該端面加工機係具備有:移動裝置,使支持裝置對於上述設置面水平地移動。 An end face processing machine for a diaphragm, comprising: a cutter for end face machining of a diaphragm according to the first or second aspect of the patent application; and a support device for supporting a laminate of the diaphragm, the end face processing The machine is provided with a moving device that moves the support device horizontally to the above-mentioned setting surface. 一種膜片之層積體的端面加工方法,係包含:具備有旋轉體、以及設於對旋轉體的旋轉軸垂直之設置面的複數個切削部,上述複數個切削面係各自從設置面突出不同之突 出量,且該切削部係具有頂面;於上述頂面的至少一邊形成有切削刀刃;在從對於設置面垂直之方向觀看切削刀刃的情形下,將通過上述切削刀刃的旋轉軸側的端部及旋轉軸之直線做為基準線時,藉由上述切削刀刃以朝上述旋轉軸的旋轉方向在20度以上、35度以下的範圍內傾斜的方式設置的端面加工用切刀,切削膜片之層積體的端面;並且在通過上述旋轉軸的水平面之薄片區域中,使膜片之層積體接觸於旋轉的上述複數片切削刀刃,藉此切削膜片之層積體的端面,並將切削刀刃接觸於膜片之層積體的下表面的出口角、與切削刀刃接觸於膜片之層積體的上表面之侵入角的差設為45度以下。 A method for processing an end face of a laminated body of a diaphragm includes: a rotating body; and a plurality of cutting portions provided on a surface perpendicular to a rotating axis of the rotating body, wherein the plurality of cutting surfaces protrude from the setting surface Different The cutting portion has a top surface; a cutting edge is formed on at least one side of the top surface; and when the cutting edge is viewed from a direction perpendicular to the installation surface, the end on the rotating shaft side of the cutting edge is passed When the straight line of the portion and the rotating shaft is used as the reference line, the cutting blade is cut by the end cutting tool which is provided so as to be inclined in the range of 20 degrees or more and 35 degrees or less in the rotation direction of the rotating shaft. And an end surface of the laminated body; and a laminated body of the diaphragm is brought into contact with the rotating plurality of cutting edges in a sheet region passing through a horizontal plane of the rotating shaft, thereby cutting an end face of the laminated body of the diaphragm, and The difference between the exit angle of the lower surface of the laminate in which the cutting edge is brought into contact with the diaphragm and the upper surface of the laminate which is in contact with the cutting edge is 45 degrees or less. 如申請專利範圍第4項所述之膜片之層積體的端面加工方法,其中,將上述侵入角設為9度以上、14度以下。 The method for processing an end face of a laminate of a film according to the fourth aspect of the invention, wherein the intrusion angle is set to be 9 degrees or more and 14 degrees or less.
TW099132972A 2009-09-30 2010-09-29 Cutter for machining an edge surface of a film, a machining apparatus having such a cutter, and method for machining an edge surface of a film TWI566863B (en)

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