CN110587670A - Shearing blade for plastic lens gate - Google Patents
Shearing blade for plastic lens gate Download PDFInfo
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- CN110587670A CN110587670A CN201910974553.XA CN201910974553A CN110587670A CN 110587670 A CN110587670 A CN 110587670A CN 201910974553 A CN201910974553 A CN 201910974553A CN 110587670 A CN110587670 A CN 110587670A
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- shearing
- blade
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- plastic lens
- plane
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- 238000010008 shearing Methods 0.000 title claims abstract description 78
- 230000003746 surface roughness Effects 0.000 claims description 9
- 238000003384 imaging method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000005764 inhibitory process Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting 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
- B26D1/0006—Cutting members therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting 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
- B26D1/0006—Cutting members therefor
- B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Abstract
The present invention relates to a shear blade for a gate of a plastic lens, comprising: the positioning part and the shearing part are connected with the positioning part; the shearing part is oppositely provided with a first surface and a second surface along the thickness direction of the shearing blade; the thickness of the shearing part is gradually reduced along the direction far away from the positioning part, and the first surface and the second surface are intersected at the farthest end to form a knife edge structure; the first surface is a rough surface. The first surface of the shearing opening part is set to be a rough surface, so that when the plastic lens is sheared by the shearing blade, the shearing opening surface on the plastic lens can be directly processed to be the rough surface by the first surface, the reflection effect of the traditional smooth shearing opening surface on light is eliminated, the shearing opening surface formed by the shearing blade has a good inhibition effect on the formation of stray light, and the imaging quality of the lens is improved.
Description
Technical Field
The present invention relates to a shearing blade, and more particularly to a shearing blade for a gate of a plastic lens.
Background
In recent years, with the increasing development of portable electronic devices such as mobile phones and tablet personal computers, there has been a vigorous development of small-sized and ultra-small lenses to be mounted on such devices. Therefore, the user not only puts higher requirements on the imaging analysis capability of the lens, but also requires the lens to have better stray light inhibition capability.
Because the existing miniaturized lens module has more and more imaging lenses, and most imaging lenses are manufactured by injection molding. Considering the handling of plastic lenses in subsequent processes, a lens gate cutting blade is used to cut the plastic lens inlet before it is packaged. According to the prior art, the edge of the lens gate shearing blade is smooth, so that the shearing surface formed by the plastic lens gate shearing is smooth and straight, the area has high reflectivity, and the stray light incident to the area is difficult to attenuate effectively. This may cause the light beam to be completely reflected to the image plane after being incident on the plane, which may cause the formation of stray light, thereby affecting the image quality of the lens module.
Disclosure of Invention
The invention aims to provide a shearing blade for a gate of a plastic lens, which solves the problem that stray light is easily generated on the shearing surface of the lens.
To achieve the above object, the present invention provides a shear blade for a gate of a plastic lens, comprising: the positioning part and the shearing part are connected with the positioning part;
the shearing part is oppositely provided with a first surface and a second surface along the thickness direction of the shearing blade;
the thickness of the shearing part is gradually reduced along the direction far away from the positioning part, and the first surface and the second surface are intersected at the farthest end to form a knife edge structure;
the first surface is a rough surface.
According to an aspect of the present invention, the second surface includes, in order in a direction away from the positioning portion, a first portion and a second portion that are provided obliquely to the first surface;
the included angle between the first part and the first surface is theta 1, the included angle between the second part and the first surface is theta 2, and the included angles meet the following conditions: theta 1 is less than or equal to theta 2.
According to one aspect of the invention, the included angle θ 1 between the first portion and the first surface satisfies: theta 1 is more than or equal to 10 degrees and less than or equal to 40 degrees;
an included angle θ 2 between the second portion and the first surface satisfies: theta 2 is more than or equal to 10 degrees and less than or equal to 65 degrees.
According to an aspect of the present invention, the first surface has a surface roughness Ra, and Ra is 0.1 μm or less and 2.0 μm or less.
According to one aspect of the invention, the first surface is a plane or a curved surface or a combination of the plane and the curved surface;
the second surface is a plane or a curved surface or a combined surface formed by the plane and the curved surface.
According to an aspect of the present invention, if the first surface and the second surface are both curved surfaces, the conductive lines of the first surface and the second surface satisfy a quadratic equation of unity.
According to an aspect of the present invention, the positioning portion is detachably connected to the cutout portion.
According to one scheme of the invention, the first surface of the shearing opening part is set to be a rough surface, so that when the plastic lens is sheared by the shearing blade, the shearing surface on the plastic lens can be directly processed to be the rough surface by the first surface, the reflection effect of the traditional smooth shearing surface on light is eliminated, the shearing surface formed by the shearing blade has a good inhibition effect on the formation of stray light, and the imaging quality of the lens is improved.
According to one scheme of the invention, the second surface is provided as two parts, and the inclination angles of the two parts relative to the first surface are set within the range, so that the first part and the second part can form the same plane or form two planes with different inclination angles, and particularly when the first part and the second part form the two planes with different inclination angles, the rapid separation of the sheared materials is facilitated, and the deformation of the shearing position is avoided.
According to one scheme of the invention, the surface roughness Ra of the first surface is more than or equal to 0.1 mu m and less than or equal to 2.0 mu m, so that scraps generated in the shearing process can be reduced or avoided under the condition of ensuring the roughness of the shearing surface in the shearing process, and the method is favorable for ensuring the appearance of the shearing plane of the lens and the surface cleanliness of the lens.
Drawings
Fig. 1 is a perspective view schematically showing a structure of a cutting blade according to an embodiment of the present invention;
fig. 2 schematically illustrates a side view of a shearing blade according to an embodiment of the present invention;
FIG. 3 is a partially enlarged view showing a structure of a portion A of FIG. 2;
fig. 4 schematically illustrates a cut-out surface view formed by a cutting blade according to an embodiment of the present invention;
fig. 5 is a perspective view schematically showing a structure of a cutting blade according to another embodiment of the present invention;
fig. 6 is a perspective view schematically showing a structure of a cutting blade according to another embodiment of the present invention;
fig. 7 schematically illustrates a side view of a shearing blade according to another embodiment of the present invention;
FIG. 8 is a partially enlarged view showing a structure of a portion B of FIG. 7;
fig. 9 schematically illustrates a bottom view of a shear blade according to another embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
As shown in fig. 1, according to an embodiment of the present invention, a shear blade for a gate of a plastic lens of the present invention includes: a positioning part 11 and a cutting part 12 connected with the positioning part 11. In the present embodiment, the first surface 121 and the second surface 122 are provided to face the cutting portion 12 in the thickness direction of the cutting blade. In the embodiment, the thickness of the cutout portion 12 gradually decreases (i.e., the interval between the first surface 121 and the second surface 122 becomes smaller) in the direction away from the positioning portion 11, and the first surface 121 and the second surface 122 intersect at the farthest end to constitute the knife edge structure 12 a. The shearing blade of the present invention shears the gate of the lens by the knife edge structure 12 a. In the present embodiment, the first surface 121 of the cutout portion 12 is a rough surface. Through the arrangement, the first surface 121 of the shearing part is set to be a rough surface, so that when the plastic lens is sheared by the shearing blade, the shearing surface on the plastic lens can be directly processed to be the rough surface by the first surface 121, the reflection effect of the traditional smooth shearing surface on light is eliminated, the shearing surface formed by the shearing blade has a good inhibition effect on the formation of stray light, and the imaging quality of the lens is improved. Meanwhile, the processing steps are simplified, and the production efficiency is improved.
As shown in fig. 1, according to an embodiment of the present invention, the second surface 122 includes a first portion 1221 and a second portion 1222 inclined with respect to the first surface 121 in order in a direction away from the positioning portion 11. In this embodiment, the angle between the first portion 1221 and the first surface 121 is θ 1, the angle between the second portion 1222 and the first surface 121 is θ 2, and they satisfy: theta 1 is less than or equal to theta 2. Through the arrangement, the second surface 122 is provided as two parts, and the inclination angles of the two parts relative to the first surface 121 are set within the above range, so that the first part 1221 and the second part 1222 can form the same plane, and can also form two planes with different inclination angles, especially when the first part 1221 and the second part 1222 form two planes with different inclination angles, the fast separation of the sheared materials is facilitated, the deformation of the shearing position is avoided, and the difficulty of processing the blade is also reduced.
As shown in fig. 1, according to an embodiment of the present invention, an included angle θ 1 between the first portion 1221 and the first surface 121 satisfies: theta 1 is more than or equal to 10 degrees and less than or equal to 40 degrees; the angle θ 2 between the second portion 1222 and the first surface 121 satisfies: theta 2 is more than or equal to 10 degrees and less than or equal to 65 degrees. Through the arrangement, the yield of the lens clipping position can be effectively ensured, and the smaller the value of the two included angles is, the higher the clipping yield is. Meanwhile, through the arrangement, the shearing part 12 is easy to machine and form, and the cost is low.
As shown in FIG. 1, according to one embodiment of the present invention, the surface roughness of the first surface 121 is Ra, and 0.1 μm Ra 2.0 μm is satisfied. Through the arrangement, in the shearing process, under the condition of ensuring the roughness of the shearing face, the scraps generated in the shearing process are reduced or avoided, and the appearance of the lens shearing plane and the surface cleanliness of the lens are ensured.
As shown in fig. 1, according to one embodiment of the present invention, the first surface 121 is a plane, and the second surface 122 is also a plane.
The present embodiment will be described in further detail with reference to the drawings.
As described above, fig. 1 schematically shows a configuration of a cutting blade according to an embodiment of the present invention. In the present embodiment, the positioning portion 11 and the cutting portion 12 are respectively arranged from top to bottom of the cutting blade, and one end of the cutting portion 12 away from the positioning portion 11 is a knife edge structure 12a formed by intersecting the first surface 121 and the second surface 122.
As shown in fig. 1, fig. 2, and fig. 3, in the present embodiment, an angle between the first portion 1221 on the second surface 122 and the first surface 121 is θ 1, and an angle between the second portion 1222 on the second surface 122 and the first surface 121 is θ 2. In this embodiment, the two angles are different, i.e., the first portion 1221 and the second portion 1222 are not on the same plane of tilt direction. Of course, the two angles may be the same, i.e. the first portion 1221 and the second portion 1222 are in the same plane of inclination. In the present embodiment, when the two angles are different, the two angles need to satisfy θ 1 < θ 2. In the present embodiment, the included angle θ 1 may be set to be 19 ° and the included angle θ 2 may be set to be 61 ° according to the foregoing limitation of the value ranges of the two included angles. By satisfying the above conditions, the actual production and processing difficulty of the shearing blade is greatly reduced, and the production cost is also reduced. Meanwhile, the angle of theta 2 is large, so that the material separation at the shearing position is more facilitated, and the flatness of the shearing surface is ensured.
As shown in fig. 1, 2, and 3, the surface of the positioning portion 11 and the first surface 121 are in the same plane in the present embodiment, and the Ra value of the surface roughness of the positioning portion 11 is 0.05 μm in the present embodiment. And the surface roughness Ra value at the position of the first surface 121 increases to 1.2 μm. Because the surface roughness Ra value of the first surface 121 is increased, a smooth plane formed after the traditional blade is cut can be effectively eliminated, the roughness of the gate cutting plane is effectively improved, as shown in fig. 4, and meanwhile, the reflectivity of the cutting plane is also reduced. Therefore, the stray light incident to the cut surface can be effectively inhibited or attenuated, and the aim of improving the stray light is fulfilled.
Through the arrangement, the shearing blade can be ensured to be easy to actually produce and process, and a gate shearing surface formed after the plastic lens is used for gate shearing is rough, so that stray light formed on the shearing surface can be effectively reduced or eliminated, and the shearing blade has good imaging quality.
As shown in fig. 5, according to another embodiment of the present invention, the first surface 121 is a curved surface, and the second surface 122 is also a curved surface. In the present embodiment, the conductive line of the first surface 121 and the second surface 122 satisfies a one-dimensional quadratic equation.
The present embodiment will be described in further detail with reference to the drawings.
As described above, fig. 5 schematically shows a structure of a cutting blade according to another embodiment of the present invention. In the present embodiment, the positioning portion 11 and the cutting portion 12 are respectively arranged from top to bottom of the cutting blade, and one end of the cutting portion 12 away from the positioning portion 11 is a knife edge structure 12a formed by intersecting the first surface 121 and the second surface 122.
As shown in fig. 5, 6, 7, and 8 in combination, in the present embodiment, the first surface 121 is connected to the surface of the position fixing portion 11, the Ra value of the surface roughness of the position fixing portion 11 is 0.05 μm, and the Ra value of the surface roughness of the first surface 121 is increased to 1.5 μm. Meanwhile, because the first surface 121 is a curved surface satisfying a quadratic equation of unity, after the lens is subjected to gate shearing through the first surface 121 satisfying the equation, the shearing surface of the residual feed port is also a curved surface satisfying the equation (the specific implementation mode will be explained later), the roughness of the shearing surface of the residual feed port formed on the lens is effectively improved, the reflectivity is also reduced at the same time, and the double suppression effect on stray light is further realized.
As shown in fig. 5, 6, 7 and 8, in the present embodiment, the inclination angles of the first portion and the second portion on the second surface 122 relative to the first surface 121 are consistent, that is, the first portion and the second portion are coplanar, and further not shown in the figure. In the present embodiment, the included angles θ 1 and θ 2 between the first surface 121 and the second surface 122 (including the first portion and the second portion) are the same and are therefore represented by θ 1, the size of the included angle θ 1 is determined by the generatrix of the first surface 121 and the second surface 122, since the first surface 121 and the second surface 122 are both curved surfaces and both satisfy a quadratic equation, if the conductive lines of the first surface 121 and the second surface 122 are the same, the included angles of the respective pixel lines on the first surface 121 and the second surface 122 are equal everywhere, and of course, if the conductive lines of the first surface 121 and the second surface 122 are not the same, the included angles of the respective pixel lines on the first surface 121 and the second surface 122 are not necessarily equal everywhere.
In this embodiment, the edge structure 12a of the shear blade of the present invention is formed by the intersection of the first surface 121 and the second surface 122, and the intersection position thereof is also curved. In the present embodiment, the conductive lines of the first surface 121 and the second surface 122 are set to be the same (only the inclination angle between the two surfaces is different), and the angle between the prime lines of the first surface 121 and the second surface 122 is set to be θ 1 ═ 24 °. Through the arrangement, the actual production and processing of the shearing blade edge structure 12a are facilitated, and the production cost can be reduced. Meanwhile, the material separation at the shearing position is facilitated, and the flatness of the shearing surface is ensured.
Fig. 9 schematically illustrates a bottom view of a cutting blade according to another embodiment of the present invention. In the present embodiment, as can be seen from the drawing, the shear blades satisfy a bilaterally symmetric relationship. For convenience of subsequent description, a rectangular plane coordinate system is established in fig. 9, a longer side of the blade in the bottom view is taken as an x-axis, a shorter side of the blade in the bottom view is taken as a y-axis, and an intersection point of the two is taken as an origin of coordinates O. As can be seen from the figure, the first surface 121 and the second surface 122 coincide with each other at the knife edge structure position to form a curved intersection line (i.e., a line passing through the first surface 121 and the second surface 122), and the curve 12b in the figure is an intersection line passing through the second surface and the positioning portion 11 (i.e., a line passing through the second surface 122). In the present embodiment, the curvatures of the points on the conductive lines on the first surface 121 and the second surface 122 are the same on the same abscissa. Specifically, the conductive lines of the first surface 121 and the second surface 122 satisfy a one-dimensional quadratic equation in which the quadratic term and the first order term are the same and only the constant term is different. Specifically, in the rectangular planar coordinate system, the transverse distance of the positioning portion 11 is W1, the longitudinal distance is L1, the transverse distance of the cutting portion 12 is W2, the longitudinal distance is L2, the points a and c are the closest points of the wire of the first surface 121 to the x-axis, the point b is the farthest point of the wire of the first surface 121 to the x-axis, the distance is D1, the points D and f are the closest points of the wire of the second surface 122 to the x-axis, and the point e is the farthest point of the wire of the second surface 122 to the x-axis, and the distance is D2. In this embodiment, the parameters may be respectively set as: w1-8 mm, W2-2 mm, L1-4 mm, L2-2.2218 mm, D1-0.1752 mm, and D2-2.3970 mm. With the above parameters, the coordinates of the point a, the point b, the point c, the point d, and the point e can be determined, that is, the coordinate of the point a is (3, 0), the coordinate of the point b is (4, 0.1752), the coordinate of the point c is (5, 0), the coordinate of the point d is (3, 2.2218), the coordinate of the point e is (4, 2.3970), and the coordinate of the point f is (5, 2.2218). Thereby, it can be confirmed that the second surface 122 wire satisfies the equation:
y＝-0.4062+1.4016x-0.1752x2；
the first surface 121 conductors satisfy the equation:
y＝-2.628+1.4016x-0.1752x2；
with the foregoing arrangement, it can be determined that the sheared portion 12 is a curved blade such that the lens gate includes a sheared surface satisfying the equation at the residual feed gap formed after shearing with the shearing blade.
Through the arrangement, the shearing blade can be guaranteed to be easy to actually produce and process, the plastic lens can form a sprue shearing curved surface after the sprue shearing is carried out by using the blade, and the roughness of the curved surface is improved to a certain degree, so that stray light formed on the shearing surface due to incident light can be effectively reduced or eliminated, and the plastic lens has good imaging quality.
According to another embodiment of the present invention, the first surface 121 is a combination of a plane and a curved surface, and the second surface 122 is also a combination of a plane and a curved surface. In this embodiment, the combination surface may be configured to have a curved surface in the middle and flat surfaces at both ends. In this embodiment, the curved surface portion of the conductive line may also adopt a quadratic equation, and the calculation method is as described above and will not be described herein again.
According to one embodiment of the present invention, the positioning portion 11 is detachably connected to the cutout portion 12. Through the arrangement, the shearing part 12 can be conveniently replaced according to needs, so that the shearing blade is low in cost and high in applicability.
The foregoing is merely exemplary of particular aspects of the present invention and devices and structures not specifically described herein are understood to be those of ordinary skill in the art and are intended to be implemented in such conventional ways.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A shear blade for a plastic lens gate, comprising: a positioning part (11) and a shearing part (12) connected with the positioning part (11);
a first surface (121) and a second surface (122) are oppositely arranged on the shearing part (12) along the thickness direction of the shearing blade;
the thickness of the shearing part (12) is gradually reduced along the direction far away from the positioning part (11), and the first surface (121) and the second surface (122) are intersected at the most far end to form a knife edge structure (12 a);
the first surface (121) is a rough surface.
2. The cutting blade according to claim 1, wherein the second surface (122) comprises, in order, in a direction away from the positioning portion (11), a first portion (1221) and a second portion (1222) arranged obliquely with respect to the first surface (121);
the first portion (1221) is at an angle θ 1 to the first surface (121), and the second portion (1222) is at an angle θ 2 to the first surface (121), such that: theta 1 is less than or equal to theta 2.
3. The shearing blade as recited in claim 2, wherein an angle θ 1 between said first portion (1221) and said first surface (121) satisfies: theta 1 is more than or equal to 10 degrees and less than or equal to 40 degrees;
an angle θ 2 between the second portion (1222) and the first surface (121) satisfies: theta 2 is more than or equal to 10 degrees and less than or equal to 65 degrees.
4. A shear blade according to any of claims 1 to 3, characterized in that the first surface (121) has a surface roughness Ra, and satisfies 0.1 μm Ra 2.0 μm.
5. The shearing blade as recited in claim 4, characterized in that said first surface (121) is a plane or a curved surface or a combination of a plane and a curved surface;
the second surface (122) is a plane or a curved surface or a combined surface formed by the plane and the curved surface.
6. The shearing blade as recited in claim 5, wherein if said first surface (121) and said second surface (122) are both curved, then the wires of said first surface (121) and said second surface (122) satisfy a one-dimensional quadratic equation.
7. A cutting blade according to claim 1 or 6, characterized in that the locating portion (11) is detachably connected with the cutting portion (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974553.XA CN110587670A (en) | 2019-10-14 | 2019-10-14 | Shearing blade for plastic lens gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974553.XA CN110587670A (en) | 2019-10-14 | 2019-10-14 | Shearing blade for plastic lens gate |
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| CN110587670A true CN110587670A (en) | 2019-12-20 |
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| CN201910974553.XA Pending CN110587670A (en) | 2019-10-14 | 2019-10-14 | Shearing blade for plastic lens gate |
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| KR20140044262A (en) * | 2012-10-04 | 2014-04-14 | 권오석 | Cutting tool and cutting method using the same |
| CN105189071A (en) * | 2013-03-22 | 2015-12-23 | 埃西勒国际通用光学公司 | Method for drilling an ophthalmic lens in a helical trajectory and associated drilling device |
| KR20150115591A (en) * | 2014-04-03 | 2015-10-14 | 권오석 | Cutting tool, cutting apparatus and cutting method using the same |
| CN105855821A (en) * | 2016-05-18 | 2016-08-17 | 燕山大学 | Precise machining method for nanometer twin crystal cubic boron nitride micro turning tool |
| CN210998857U (en) * | 2019-10-14 | 2020-07-14 | 浙江舜宇光学有限公司 | Shearing blade for plastic lens gate |
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