JPH0990290A - Method for removing ocular lens material from working jig and device for removing the material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to extremely rapidly remove a lens material from a working jig and to drastically shorten the working time so as to improve production efficiency by forcibly deforming the curved projecting surface of the working jig adhered with the lens material to immediately detach the lens material from the curved projecting surface. SOLUTION: The respective air cylinder mechanisms of pinching devices 14, 14 are actuated to drive pinching plates 40, 40 near to each other and the base plate part 24 of the working jig 18 is pinched from both sides in the direction perpendicular to the axis, by which the base plate protective film 24 is deformed so as to be crushed in a diametral direction. As a result, the deformation of the base plate part 24 is transmitted to a lens holding part 28 as well and this lens holding part 28 is deformed so as to be bent toward the inner side in the diametral direction. As a result, the resistance force to the deformation based on the elasticity or rigidity of the lens material 27 acts as peeling force between the adhered surface of the curved projecting surface 26 of the lens holding part 28 and the lens material 27 adhered thereto and overcomes the adhesive force by adhesives, thereby detaching the lens material 27 from the curved projecting surface 26.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method and an apparatus for removing a lens material from a processing jig for attaching the lens material to a processing device such as a cutting device when manufacturing an ophthalmic lens,
In particular, the present invention relates to an apparatus and a method for removing an ophthalmic lens material from a jig for processing, which is suitably adopted when manufacturing an ophthalmic lens such as a contact lens or an intraocular lens which is small and cumbersome to handle.

[0002]

2. Description of the Related Art As a method for producing an ophthalmic lens such as a contact lens or an intraocular lens, Japanese Patent Laid-Open No. 7-1955.
As described in Japanese Patent Publication No. 56, etc., after forming a concave lens surface by cutting a block-shaped lens material or the like, when forming a convex lens surface, a base mounted on a predetermined processing device. A base and an ophthalmic lens material (hereinafter,
A lens holding portion having a curved convex surface to which a spherical concave surface (which is simply referred to as a lens material) is adhered, and
A method is known in which a lens material is attached to a device for processing a lens surface on the convex surface side through the processing jig to perform cutting processing or the like.

In such a method, the lens material is subjected to processing such as cutting under the condition that the lens material is held by being adhered to the curved convex surface of the processing jig by an adhesive agent, and thereafter. , It is necessary to remove the lens material from the processing jig.

Therefore, in the prior art, for example, the adhesive interposed between the ophthalmic lens material and the processing jig is melted, and the adhesive is immersed in an appropriate liquid that does not adversely affect the ophthalmic lens material. The processed ophthalmic lens material was separated from the processing jig by melting.

However, in general, in order to melt the adhesive and separate the lens material from the processing jig, it is necessary to immerse them in the liquid for several hours or more, so that the working time becomes very long. , Was a major obstacle to improving production efficiency.

Moreover, in such a method, since the lens material is separated from the processing jig in the liquid, the separated lens material floats in the liquid and is separated from the processing jig and floats. It is necessary to collect the lens material afterwards, which is a troublesome work.In particular, when the lens material is transparent and small like a contact lens or an intraocular lens, the collecting work is extremely troublesome and adversely affects the production efficiency. There was a problem of affecting.

[0007]

The present invention has been made in view of the circumstances as described above, and the problem to be solved is that the lens material can be quickly separated from the processing jig. It is an object of the present invention to provide a new method and device for removing a lens material from a jig for processing.

[0008]

In order to solve such a problem, a feature of the method of the present invention resides in that a spherical concave surface of an ophthalmic lens material is adhered to a lens holding portion having a curved convex surface, whereby the eye When removing the ocular lens material adhered to the curved convex surface of the lens holding part in the processing jig that holds the ophthalmic lens material, directly touch the ocular lens material to the processing jig without touching the ocular lens material. There is a method for detaching an ophthalmic lens from a processing jig, in which an external force is applied to deform the curved convex surface of the processing jig to separate the ocular lens from the curved convex surface.

That is, in such a method of the present invention, by forcibly deforming the curved convex surface of the processing jig to which the lens material is adhered, the lens material and the curve are curved based on the elasticity or rigidity of the lens material. A peeling force acts between the convex surfaces, and the lens material is immediately separated from the curved convex surface.

Therefore, according to the method of the present invention, the lens material can be quickly removed from the processing jig, and the working time can be shortened and the production efficiency can be improved.

Moreover, according to the method of the present invention, when the lens material is removed from the processing jig, an external force does not act directly on the lens material, and a large pressure acts on the lens material. Therefore, the damage of the lens material can be avoided as much as possible.

In the method of the present invention, for example, when the curved convex surface of the processing jig is deformed, it is effective to adsorb and support the ophthalmic lens material adhered to the curved convex surface from the outside. As a result, the lens material removed from the processing jig can be held, which facilitates the work of collecting the separated lens material.

Further, in the method of the present invention, the action method, the action direction, and the like of the external force adopted to deform the curved convex surface of the processing jig are appropriately determined in consideration of the shape and material of the processing jig. Although not limited thereto, for example, in a processing jig, a base portion having a cylindrical outer peripheral surface extending in the axial direction from the outer peripheral edge portion of the curved convex surface is provided, and the base is provided. It is effective to apply an external force in a direction substantially perpendicular to the axis to the base portion to deform the base portion so as to be crushed in the direction perpendicular to the axis. If such a method of applying an external force to the processing jig is adopted, the curved convex surface can be easily and advantageously deformed by the external force without touching the lens material adhered and held by the lens holding portion, so that the lens material can be made more effective. Can be separated into

Further, the range of application of the method of the present invention is not particularly limited by the kind of adhesive for bonding the curved convex surface of the processing jig and the lens material. Such an adhesive has an adhesive strength that ensures adhesion between the lens material and the curved convex surface during processing of the lens material, etc., and that the lens material is easily separated when the curved convex surface is deformed. Therefore, any material that does not adversely affect the lens material or processing jig can be used, and it will be appropriately selected according to the characteristics and hardness of the lens material and processing jig. Any UV curable adhesive or the like that has been used can be adopted.

Further, the applicable range of the method of the present invention is not particularly limited by the kind of lens material. As the lens material, any material may be used as long as it has elasticity or rigidity that can generate an effective peeling force when the curved convex surface is curved when the lens is detached from the curved convex surface of the processing jig. Generally, it can be preferably applied when a hard contact lens material is adopted.

Furthermore, the applicable range of the method of the present invention is not particularly limited by the material of the processing jig.
As the material of the processing jig, it is possible to stably hold the lens material without deformation during processing of the lens material adhered to the curved convex surface, and to remove the lens material by an external force. It can be used as long as it deforms without cracking, for example,
Acrylic and styrene synthetic resin materials are preferably adopted. When an ultraviolet curable adhesive is used to bond the lens material, a UV transparent material is desirable in order to irradiate the bonding surface with ultraviolet light advantageously.

On the other hand, in order to solve the above problems,
The device of the present invention is characterized in that (a) a base part attached to a predetermined processing device and a lens holding part having a curved convex surface to which a spherical concave surface of an ophthalmic lens material is bonded, By applying an external force to the processing jig made of a material that can be deformed by the action and (b) the base portion of the processing jig, the curved convex surface of the lens holding portion is deformed and adhered to the curved convex surface. An external force acting means for releasing the eye lens material, and (c) a supporting means for supporting the eye lens material detached from the processing jig by sucking and adsorbing the eye lens material from the spherical convex surface side. And a device for removing the ophthalmic lens material from the processing jig.

In such an apparatus of the present invention, by deforming the processing jig by the external force acting means, the adhesive surface between the curved convex surface and the lens material is peeled off based on the elastic force or the rigidity force of the lens material. The force is applied, and the lens material is quickly removed from the processing jig. Moreover, since the lens material is suction-adsorbed and supported by the supporting means, the operation of collecting the lens material detached from the processing jig is easy.

Therefore, according to such a device of the present invention,
The lens material can be quickly removed from the processing jig, and the lens material removed from the processing jig can be collected and transported easily and quickly, which reduces the work time required for lens processing. Shortening and improved production efficiency can be achieved.

Moreover, according to the apparatus of the present invention, the action of an excessive external force on the lens material is avoided even when the lens material is removed from the processing jig or when the removed lens material is collected. Therefore, damage to the lens material or the like can be avoided as much as possible, and improvement and stabilization of product quality can be advantageously achieved.

In the processing jig, at least the base portion and the lens holding portion to which an external force is exerted by the external force acting means are made of a deformable material. For example, the above-mentioned acrylic or styrene is used. A plastically deformable resin material such as a synthetic resin material of a system is preferably adopted. Further, the base portion and the lens holding portion in such a processing jig may be formed of an elastic material, whereby
By using the processing jig within the elastic deformation region even when the lens material is removed from the curved convex surface, it becomes possible to repeatedly use the processing jig a plurality of times when processing the lens material.

In the apparatus of the present invention, the specific shape of the processing jig is appropriately determined according to the structure of the processing apparatus to which the processing jig is attached, and the like.
The method of applying an external force to the base is also appropriately determined according to the shape of the processing jig and is not particularly limited. For example, the base may be stepped or straight. In addition to adopting a simple axial shape, a processing jig having a structure in which a lens holding portion is provided at the axially distal end portion of the base is adopted, and the base is sandwiched from both sides in the direction perpendicular to the axis by external force acting means. It is possible to exert an external force on.

If such a construction is adopted, a large external force can be easily and stably applied from the external force acting means to the base portion, and the external force exerted on the base portion is applied to the lens holding portion. It is possible to effectively transmit the deformation and efficiently generate the deformation for generating the effective lens peeling force on the curved convex surface.

Furthermore, in the apparatus of the present invention, the base part of the processing jig may have a solid structure. For example, the base part has a hollow cylindrical structure, and the base part is It is preferable to provide a lens holding portion at the tip end portion in the axial direction.

By adopting such a structure, the base portion can be easily deformed by the external force acting means, and in particular, the pressing force can be applied to the base portion from both sides in the axial direction. If so, the base portion can be deformed more easily. Moreover, if the lens holding portion is formed at the axially distal end portion of the base portion having the hollow cylindrical structure, the deformation such as crushing the base portion in the direction perpendicular to the axis is more advantageously exerted on the lens holding portion. As a result, the deformation that produces an effective lens peeling force with respect to the curved convex surface is more efficiently generated.

In the apparatus of the present invention, (d) a carrying-in means for guiding the processing jig conveyed from the processing apparatus to a working position where an external force is exerted by the external force acting means, and (e)
An external force is exerted by the external force acting means to remove the ocular lens material that has been separated from the processing jig from the working position, and (f) the processing jig from which the lens material has been separated. A payout means for taking out from such a working position is preferably adopted.

If such a construction is adopted, the work of removing the lens material from the processing jig can be advantageously automated.

Also in the apparatus of the present invention, as in the case of the method of the present invention described above, the applicable range is particularly limited depending on the type of adhesive employed, the material of the lens material, the material of the processing jig, and the like. There is no such thing.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

First of all, FIG. 1 shows a schematic plan view of an embodiment of an apparatus constructed according to the present invention.
FIG. 2 shows a side view of the essential parts of such a device,
Further shown in FIG. 3 is a plan view of the working part of such a device. In the apparatus for removing the ophthalmic lens material from the processing jig shown in these drawings, the jig installation table 12 is provided upright in the center of the frame 10 with respect to the frame 10. A pair of pinching devices 14, 14 as external force acting means are installed on both sides sandwiching the jig installation table 12.

The jig setting table 12 is provided with a circular set recess 16 at the center of the tip end surface thereof, and the processing jig 18 is set in the set recess 16. There is. In this embodiment, as the processing jig 18, as shown in FIGS. 4 and 5, a base having a stepped cylindrical shape in which the upper portion 20 has a smaller diameter than the lower portion 22 and the inside is hollow. A unit having a portion 24 and a spherical shell-shaped lens holding portion 28 that covers the opening portion on the upper portion 20 side of the base portion 24 and has a curved convex surface 26 having a spherical outer peripheral surface is adopted. In the processing jig 18 as described above, the lens material 27 having the spherical concave surface 30 formed by cutting is formed on the lens holding portion 28 at the spherical concave surface 30 as shown by the phantom line in FIG. The curved convex surface 28 is adhered and held, and although not shown,
The base portion 24 of the processing jig 18 can be gripped and fixed by a chuck of a spindle in a cutting processing device. By gripping and fixing the base portion 24 to the cutting processing device,
The outer surface of the lens material 27 adhesively held by the lens holding portion 28 is cut into a desired spherical convex surface.

Further, in this embodiment, the material of the processing jig 18 is a deformable material having a hardness sufficient to prevent the lens material 27 from being deformed when the lens material 27 is processed by the cutting device. Therefore, the one having a good light transmittance is adopted. Specifically, for example, the processing jig 18 formed of a styrene resin material is preferably used.

In the processing jig 18 as described above, the large-diameter lower portion 22 of the base portion 24 is fitted into the set recess 16 of the jig mounting table 12 so that the jig mounting table 12 has a predetermined size. It is designed to be placed in position.

On the other hand, in the pinching devices 14, 14, with respect to the vertical plates 32, 32 fixedly installed on the gantry 10 so as to face each other on both sides of the jig installing base 12, respectively. The four air cylinder mechanisms 34 are fixedly installed, and the piston rods of these four air cylinder mechanisms 34 are provided at the four corners of a rectangular flat plate-shaped drive plate 36 disposed on the facing surface side of each vertical plate 32. The drive plate 36 is connected to the portion and can be driven toward and away from each other in the facing direction. Further, clamping plates 40 projecting in the facing direction are fixed at corresponding positions on the facing surfaces of the drive plates 36, 36, respectively. As will be described later, the drive plates 36, 36 approach each other. When driven,
The tip portions of the pressing plates 40, 40 press the base portion 24 of the processing jig 18 set on the jig installation base 12 from both sides in the radial direction, and the processing jig 18 moves to the lens. The material 27 is designed to be separated. In addition,
In the figure, reference numeral 38 is an air hose for supplying / discharging drive air to / from the air cylinder mechanism 34.

Particularly, in this embodiment, the vertical plate 32 of the pressing device 14 is driven by the four air cylinder mechanisms 34, and the pressing plate 40 is guided to the upper surface of the jig installation table 12. Since the guide groove 37 is formed, the pressure plate 40 is prevented from tilting when driven.

Further, as shown in FIG. 1, a carry-in device 42, a carry-out device 44, and a pay-out device 46 are arranged around the jig installation table 12. Although not clearly shown in the drawings, the carry-in device 42 has an operating arm 50 that is rotationally driven about a rotation center shaft 48, and holds the processing jig 18 at the tip portion of the operating arm 50. The movable gripping part is assembled so that it can move up and down.
By rotating the operation arm 50, such a gripping portion can be moved back and forth between the jig installation base 12 and the delivery base 52. Then, the lens material 27 whose spherical convex surface has been cut by the cutting device is carried together with the working jig 18 onto the delivery table 52 by a carrying device such as an air conditioner bear (not shown). The processing jig 18 conveyed and placed on the jig 52 is conveyed to the jig setting table 12 by the carry-in device 42 and set at a predetermined position.

Furthermore, the carry-out device 44 includes the rotation center shaft 5
4 has an operating arm 56 which is driven to rotate around 4, and the distal end portion of the operating arm 56 is shown in FIG.
The suction device 58 as shown in FIG.
8 can be reciprocated between the jig setting table 12 and the lens receiving table 60. In addition, the adsorption device 58
Is a housing 6 fixed to the tip of the operating arm 56.
2 has a suction pipe 64 that projects downward, and a rubber suction pad 66 that expands downward in a tapered shape is fixed to the lower end of the suction pipe 64. Furthermore, the suction pipe 64 is capable of extending / retracting downward from the housing 62, and is urged in a direction of extending from the housing 62 by an externally inserted coil spring, and is driven by a driving means (not shown). The housing 62 is driven by being driven in the retracting direction.
It can be freely extended / retracted from.

Then, by applying a negative pressure to the suction pipe 64 of the suction device 58 through the air hose 68, a suction pad 66 provided at the tip of the suction pipe 64.
The processing jig 18 placed on the jig setting table 12
The lens material 27 separated from the above is sucked and held, and the sucked and held lens material 27 is separated from the processing jig 18 by the upward movement of the suction tube 64, and the operation arm 56 is rotated. By the movement, it is conveyed onto the lens receiving table 60.

Although not clearly shown in the drawings, the dispensing device 46 has an operating arm 72 that is driven to rotate about a rotation center shaft 70, and has a distal end portion of the operating arm 72 for machining. A gripping portion capable of gripping the jig 18 is assembled so as to be movable up and down, and the gripping portion is reciprocally moved between the jig setting base 12 and the jig receiving base 74 by the rotation of the operation arm 72. It is like this. Then, the processing jig 18 from which the lens material 27 is removed and which is placed on the jig setting table 12 is carried out to the jig receiving table 74 by the payout device 46. .

Next, a method of removing the ophthalmic lens material from the processing jig by using the apparatus having such a structure will be described.

First, the processing jig 18 having the spherical convex surface processing applied to the adhered lens material 27 and conveyed onto the delivery table 52 is carried out by the carrying-in device 42.
It is conveyed to the upper side and set in the set recess 16. The setting operation of the processing jig 18 by the carry-in device 42 is
It is carried out in a state in which the pressure plates 40, 40 of the pressure devices 14, 14 are spaced apart from each other.

Next, as shown in FIG. 6, the suction device 58 of the carry-out device 44 is moved onto the jig setting table 12,
The spherical convex surface (outer surface) of the lens material 27 adhered to the processing jig 18 is suction-supported by the suction device 58. In that state, as shown in FIG. 7, the air cylinder mechanisms 34 of the clamping devices 14, 14 are operated to drive the clamping plates 40, 40 closer to each other, and the machining jig 1
By pinching the base portion 24 of No. 8 from both sides in the direction perpendicular to the axis, the base portion 24 is deformed so as to be crushed in the radial direction.

That is, by deforming the base portion 24 in this way, the deformation of the base portion 24 causes the lens holding portion 28 to be deformed.
As a result, the lens holding portion 28 is deformed so as to be bent inward in the radial direction, whereby the curved convex surface 26 of the lens holding portion 28 and the lens material 27 adhered thereto are adhered. A resistance force against deformation due to elasticity or rigidity of the lens material 27 acts as a peeling force between the surfaces, and thus the peeling force overcomes the adhesive force of the adhesive to separate the lens material 27 from the curved convex surface 26. It will be punished.

After that, the lens material 27 separated from the processing jig 18 is guided by the carry-out device 44 onto the lens receiving table 60 while being sucked and supported by the suction device 58, and taken out. The lens material 27 taken out on the lens receiving table 60 is then guided to a finishing work step which is carried out as necessary by a carrying device or the like not shown.

On the other hand, the processing jig 18 alone, from which the lens material 27 has been removed, is the clamping plate 4 of the clamping device 14, 14.
After separating 0 and 40 from each other, they are carried out onto the jig receiving table 74 by the payout device 46. The carried-out processing jig 18 is appropriately disposed except when it is made of an elastic material that restores its initial shape and is reusable.

According to such a method, the processing jig 18
Since the lens material 27 can be removed extremely quickly from the above, the production efficiency of the lens is dramatically improved.

Particularly, in the present embodiment, the carry-out device 44
As a result, the lens material 27 removed from the processing jig 18 is adsorbed and supported, so that the lens material 27 after removal can be easily and promptly collected and transported, and the lens production efficiency is further improved. It can be done.

Further, in this embodiment, the lens material 2 is used.
The carrying-in device 4 is also used for carrying in the processing jig 18 to which 7 is adhered and for carrying out the separated lens material 27 and the processing jig 18.
2. Since it is quickly performed by the carry-out device 44 and the payout device 46, automation of lens processing can be easily and efficiently realized, and further improvement in lens production efficiency can be advantageously achieved. Become.

The embodiments of the present invention have been described in detail above, but these are literal examples and the present invention should not be construed as being limited to such specific examples.

For example, the carry-in device 42, the carry-out device 44, and the payout device 46 do not necessarily have to be provided.

Further, in the above embodiment, the pressure plate 40 in the pressure device 14 is driven by the four air cylinder mechanisms 34, but the drive mechanism is not limited at all. It is also possible to drive by one or two air cylinder mechanisms, or to employ another drive mechanism.

Further, when the processing jig 18 is easily elastically deformed, in order to ensure the rigidity during the cutting of the lens material 27, for example, a reinforcing member is provided inside the hollow of the processing jig 18. When the lens material 27 is detached from the processing jig 18 by inserting it into a substantially solid structure, the reinforcing member is taken out from the processing jig 18 to facilitate the deformation of the processing jig 18. It is also possible to do so.

Although not listed one by one, the present invention can be carried out in a mode in which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art, and such an embodiment is It goes without saying that all of them are included in the scope of the present invention without departing from the spirit of the present invention.

[0054]

As is apparent from the above description, according to the method of the present invention and the apparatus of the present invention, the lens material is formed by forcibly deforming the curved convex surface of the processing jig to which the lens material is adhered. Since the lens material can be removed from the curved convex surface immediately, it is possible to remove the lens material from the processing jig very quickly. The time can be greatly shortened and a dramatic increase in production efficiency can be achieved.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing a device for removing an ophthalmic lens material from a processing jig as an embodiment of the present invention.

FIG. 2 is a side view schematically showing a main part of the embodiment apparatus shown in FIG.

FIG. 3 is a plan view showing an enlarged main part of the embodiment apparatus shown in FIG.

FIG. 4 is a vertical cross-sectional view showing a specific example of a processing jig used in the apparatus of the embodiment shown in FIG.

5 is a plan view of the processing jig shown in FIG. 4. FIG.

FIG. 6 is an explanatory view showing a step of the operation of removing the ophthalmic lens material from the processing jig by using the apparatus of the embodiment shown in FIG.

FIG. 7 is an explanatory view showing another step of the work of removing the ophthalmic lens material from the processing jig by using the apparatus of the embodiment shown in FIG.

[Explanation of symbols]

 12 jig installation table 14 clamping device 18 processing jig 24 base part 26 curved convex surface 27 lens material 28 lens holding part 30 spherical concave surface 34 air cylinder mechanism 40 clamping plate 42 carry-in device 44 carry-out device 46 pay-out device 58 adsorption device

Claims (8)

[Claims] 1. In a processing jig for holding a spherical concave surface of an ophthalmic lens material to a lens holding portion having a curved convex surface, the curved convex surface of the lens holding portion is held in the processing jig. When removing the ophthalmic lens material adhered to, the external force is applied directly to the processing jig without touching the ophthalmic lens material to deform the curved convex surface of the processing jig. The method of detaching the ophthalmic lens material from the jig for processing is characterized in that the ophthalmic lens material is released from the curved convex surface. 2. The removing method according to claim 1, wherein, when the curved convex surface of the processing jig is deformed, the ophthalmic lens material adhered to the curved convex surface is adsorbed and supported from the outside. 3. When the curved convex surface of the processing jig is deformed, a base member having a cylindrical outer peripheral surface extending in the axial direction from the outer peripheral edge portion of the curved convex surface is formed in a direction substantially perpendicular to the axis. The removing method according to claim 1 or 2, wherein an external force is applied to deform the base so as to be crushed in a direction perpendicular to the axis. 4. A material which is deformable by the action of an external force, comprising a base portion attached to a predetermined processing device and a lens holding portion having a curved convex surface to which a spherical concave surface of an ophthalmic lens material is adhered. By applying an external force to the processing jig and the base portion of the processing jig, the curved convex surface of the lens holding portion is deformed, and the eye lens material adhered to the curved convex surface is released. An external force acting means, and a supporting means for supporting the ocular lens material separated from the processing jig by sucking and adsorbing the ocular lens material from the spherical convex surface side. Device for removing the eye lens material from the processing jig. 5. The removing device according to claim 4, wherein the base portion and the lens holding portion of the processing jig are made of a plastically deformable resin material. 6. In the processing jig, the lens holding portion is provided at a tip end portion in the axial direction of the base portion,
The external force acting means exerts an external force so as to sandwich the base portion from both sides in the direction perpendicular to the axis to deform the base portion, thereby deforming the curved convex surface of the lens holding portion. The removal device described. 7. The processing jig according to claim 4, wherein the base part has a hollow cylindrical structure, and the lens holding part is provided at a tip end portion in the axial direction of the base part.
7. The removal device according to any one of 6 to 6. 8. A carrying-in means for guiding the processing jig conveyed from the processing device to a work position where an external force is exerted by the external force acting means, and an external force exerted by the external force acting means, whereby the machining is performed. A carrying-out means for taking out the ophthalmic lens material separated from the working jig, and taking out the working jig from which the ocular lens material has been taken out, and a taking-out means for taking out the working lens from the working position. The detaching device according to any one of claims 4 to 7, which is provided.