CN108340604B - Contact lens stripper - Google Patents
Contact lens stripper Download PDFInfo
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- CN108340604B CN108340604B CN201710055523.XA CN201710055523A CN108340604B CN 108340604 B CN108340604 B CN 108340604B CN 201710055523 A CN201710055523 A CN 201710055523A CN 108340604 B CN108340604 B CN 108340604B
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- trimming
- separation
- limiting
- contact lens
- disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
- B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
- B29D11/00192—Demoulding, e.g. separating lenses from mould halves
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to a contact lens stripper, which comprises a support frame, and a control device, a conveying device, a separating device, a trimming device and a collecting device which are arranged on the support frame, wherein the conveying device is arranged adjacent to the separating device, the trimming device is arranged adjacent to the separating device, the collecting device comprises a first collecting device and a second collecting device, the first collecting device is arranged adjacent to the separating device and the trimming device, and the second collecting device is arranged adjacent to the trimming device. The invention innovatively realizes full automation of demolding treatment in the process of preparing the contact lens, can continuously operate, effectively solves the problems of low efficiency, non-uniform standard and the like in the existing demolding treatment process, saves labor cost, and greatly improves the quality and efficiency of demolding treatment, thereby improving the overall production efficiency of the contact lens, and is particularly suitable for demolding treatment in the process of preparing the contact lens by a mold pressing method.
Description
Technical Field
The invention relates to the technical field of contact lens preparation, in particular to a contact lens stripper.
Background
With the popularization of electronic products on computers and mobile phones, people are increasingly in common contact with various devices with display screens in work and life, and the different light intensities of the devices using the electronic products have different degrees of influence on the eyesight of people. With the increase of the eye strength and the eye time, the number of people wearing the glasses is increased, and the influence of the external image and the like generated by wearing the common glasses is not avoided, so that the contact lenses are popular with people due to the functions of vision correction and beautification.
Currently, there are three main types of contact lens manufacturing processes: centrifugal casting rotational molding, turning processes, and compression molding, wherein compression molding is a recently emerging contact lens molding process. In the existing compression molding process for preparing the contact lens, a proper amount of liquid is injected into a female die, then the male die is placed into the female die for pressing, and the preparation of the contact lens is completed through the matching of the female die and the male die, wherein the method adopted for demolding the contact lens is generally as follows: firstly, a die assembly formed by a concave die and a convex die in the die pressing process is put on a fixing frame; then, pressing the top of the combined die by means of a tool, separating the concave die from the convex die, and cutting off the residual material at the edge of the convex die by using a cutter; after the excess material is removed, the contact lens attached to the male mold is subjected to water quenching, sterilization and other procedures, and finally the wearable lens is obtained. In the method, the demolding and separating operation of the concave die and the convex die is carried out manually, so that the production efficiency is low, the uneven force and the different operation treatment level of each operator are easy to cause different lens products, and the qualification rate of the lenses is low.
Therefore, research and development of a better demolding apparatus is needed to improve the demolding efficiency with a better demolding method, thereby improving the productivity and qualification rate of contact lenses.
Disclosure of Invention
The invention aims at solving the problems existing in the prior art, provides the contact lens demolding machine, realizes demolding automation, saves labor, improves demolding efficiency, accordingly, is beneficial to improving production efficiency, and replaces manual demolding to ensure the consistency of the specification standard of the contact lens, thereby being beneficial to improving the qualification rate of products.
The technical scheme for solving the problems is as follows: the contact lens stripper comprises a support frame, and a control device, a conveying device, a separating device, a trimming device and a collecting device which are arranged on the support frame, wherein the conveying device is adjacent to the separating device, the trimming device is adjacent to the separating device, the collecting device comprises a first collecting device and a second collecting device, the first collecting device is adjacent to the separating device and the trimming device, and the second collecting device is adjacent to the trimming device.
Further, in the contact lens stripper according to the present invention, the conveying means, the separating means and the trimming means are disposed adjacent to each other in this order; the control device and the trimming device are arranged in a separated mode through the first collecting device, and the separating device and the trimming device are arranged on the same side of the first collecting device.
Further, in the contact lens stripper according to the present invention, a purge device is further provided on the support frame, the purge device includes an air supply pipe and an air pump connected to each other, and a nozzle of the air supply pipe faces the separating device and the trimming device.
Further, in the contact lens stripper of the present invention, the conveyor comprises a conveyor tray and a guide channel connected; the separation device comprises a separation rotating disc and a separation operating part, wherein the separation rotating disc and the separation operating part are respectively and fixedly connected with the bracket, a plurality of separation limiting parts are arranged on the separation rotating disc, and the separation operating part is arranged above the separation limiting parts; the guide channel is arranged close to the separation rotating disc; the trimming device comprises a trimming rotary disc and a trimming limiting part, and the trimming rotary disc and the trimming limiting part are fixedly connected with the bracket respectively; a first male die limit guide part is arranged between the separation rotating disc and the trimming rotating disc; a second male die limiting guide part is arranged between the second collecting device and the trimming rotary disc; the direction of the separating rotary disk and the direction of the finishing rotary disk are the same when the separating rotary disk and the finishing rotary disk rotate.
Preferably, in the contact lens stripper according to the present invention, the bottom of the guide channel is higher than the bottom of the separation limiting portion, and the top of the guide channel is lower than the bottom of the separation operating portion; the bottom of the separation limiting part and the bottom of the trimming rotary disk are on the same horizontal plane; the separation limiting parts are arranged at intervals on the periphery of the separation rotating disc; the distance between the bottom of the separation operation part and the top of the separation limiting part is not higher than one concave die.
In the contact lens stripper according to the present invention, the separation operation portion is a separation roller, and a chamfer is provided at an edge of the separation roller.
Preferably, in the contact lens stripper according to the present invention, the separation operation part is a push-down lever mechanism, and includes a pneumatic push-down lever and a push-down bar provided with a rounded chamfer connected to each other, and the pneumatic push-down lever is connected to the support frame.
Preferably, in the contact lens stripper of the present invention, the trimming rotary disc has a double-layer structure having the same central rotation axis, wherein the double-layer structure is an inner trimming rotary disc and an outer trimming rotary disc, the inner trimming rotary disc is disposed above the outer trimming rotary disc, the radius of the inner trimming rotary disc is smaller than that of the outer trimming rotary disc, a gear structure is disposed around the inner trimming rotary disc, one end of the second male mold limit guide portion is disposed close to the inner trimming rotary disc, and the other end of the second male mold limit guide portion is disposed close to the second collecting device.
Preferably, in the contact lens stripper according to the present invention, the trimming stopper is disposed close to the first collecting device, and an inner edge of the trimming stopper is parallel to an outer edge of the trimming rotary disk; a gear structure is arranged on the inner side of the trimming limiting part; the trimming limiting part is arranged in an arc shape by taking the center of the trimming rotary disk as the center, and the radian of the arc formed by the trimming limiting part is smaller than 180 degrees; the thickness of the trimming limiting part is gradually increased along the same direction.
Preferably, in the contact lens stripper according to the present invention, the separating rotary disc has a double-layer structure having the same central rotation axis, and includes an upper separating rotary disc and a lower separating rotary disc; each separation limiting part is arranged around the upper separation rotating disc; the first male die limiting guide part comprises a limiting column and a guide part which are connected, the limiting column is fixedly arranged on the supporting frame, and the limiting column is positioned between the separating rotating disc and the trimming rotating disc; the guide part is arranged in a gap between the upper separation rotating disc and the lower separation rotating disc in an extending way and penetrates through the bottom of the separation limiting part closest to the trimming rotating disc.
Compared with the prior art, the invention has the beneficial effects that: the invention innovatively realizes full automation of demolding treatment in the process of preparing the contact lens, can continuously operate, effectively solves the problems of low efficiency, different standards and the like in the existing demolding treatment process, saves labor cost, simultaneously avoids loss and damage caused by uneven force application of different operators, correspondingly provides a guarantee for unified specification of the contact lens product, and greatly improves the quality and efficiency of demolding treatment, thereby improving the overall production efficiency of the contact lens, and is particularly suitable for demolding treatment in the process of preparing the contact lens by a mold pressing method.
Drawings
FIG. 1 is a schematic view (I) of a contact lens stripper of the present invention in example 1;
FIG. 2 is a schematic diagram of a contact lens stripper of the present invention in example 1;
FIG. 3 is a schematic diagram of a contact lens stripper of the present invention in example 1;
FIG. 4 is a partial top view of the contact lens stripper of the present invention of example 2;
FIG. 5 is an enlarged view of a portion of the contact lens stripper of the present invention of example 3;
FIG. 6 is an exploded view of the trimming stop of the contact lens stripper of the present invention of example 4;
fig. 7 is an exploded view of the separator roll of the contact lens stripper of the present invention of example 5.
Fig. 8 is a schematic view of the structure of the press-down lever mechanism of the contact lens stripper of the present invention in example 6.
The figure shows:
1-a support frame;
2-control device, 201-start-stop controller, 202-separation controller, 203-trimming controller;
3-conveyor, 301-conveyor tray, 302-guide channel;
4-separating means, 401-separating rotating discs; 402-a separation operation part, 4021-a fixing frame, 4022-a connecting frame, 4023-a bearing, 4024-a separation rolling wheel and 4025-a bearing cover plate; 403-separating and limiting part;
5-trimming devices, 501-trimming rotating discs, 502-trimming limiting parts, 50201-upper trimming limiting parts, 50202-lower trimming limiting parts;
6-a first collection device; 7-a second collection device; 8-universal wheels; 9-a purge device;
10-a first male die limit guide, 1001-a limit post, 1002-a guide;
11-a second male die limit guide; 12-pneumatic pressing rod; 13-press down the rod.
Detailed Description
The invention is further described below with reference to the drawings and examples, but the scope of the invention is not limited to the examples and is not limited thereto. In addition, well known elements, circuits, methods of use, and the like have not been described in detail in order to avoid unnecessarily obscuring the essence of the present invention.
Example 1
As shown in fig. 1, a contact lens stripper of the present invention comprises a support frame 1, and a control device 2, a conveying device 3, a separating device 4, a trimming device 5 and a collecting device which are arranged on the support frame 1, wherein the conveying device 3 is arranged adjacent to the separating device 4, the trimming device 5 is arranged adjacent to the separating device 4, the collecting device comprises a first collecting device 6 and a second collecting device 7, the first collecting device 6 is arranged adjacent to the separating device 4 and the trimming device 5, and the second collecting device 7 is arranged adjacent to the trimming device 5.
In the above embodiment, space is saved by arranging the control device 2, the transfer device 3, the separating device 4, the finishing device 5 and the collecting device on the supporting frame. To further save space and materials and improve the demolding efficiency, preferably, the conveying device 3, the separating device 4 and the trimming device 5 are arranged adjacently in sequence; the control device 2 and the trimming device 5 are arranged separately through the first collecting device 6, and the separating device 4 and the trimming device 5 are arranged on the same side of the first collecting device 6. For easy operation adjustment, as shown in fig. 2, the control device 2 preferably includes a start-stop controller 201, a separation controller 202 and a trimming controller 203, which are uniformly controlled by a programmable controller, wherein the start-stop controller 201 is used for controlling the start and stop of the whole demolding machine and the start and stop of the conveying device 3; the separation controller 202 is used for controlling the opening, closing and separating operation speed of the separation device 4; the dressing controller 203 is used to control the speed of the opening, closing, and dressing operations of the dressing device 5. To facilitate the movement and handling of the entire stripper, as shown in fig. 2, it is preferable to provide a plurality of universal wheels 8 at the bottom of the support frame 1 to facilitate the adjustment of the working site of the stripper according to the contact lens manufacturing and preparation needs.
In the above embodiment, as shown in fig. 3, in order to enable the concave mold separated by the separating device 4 and the waste material trimmed by the trimming device 5 to enter the first collecting device 6 in time for collection, avoiding the obstacle caused by the subsequent separating operation and trimming operation, preferably, a purging device 9 is provided on the supporting frame 1, the purging device 9 includes an air supply pipe and an air pump connected to each other, the pipe opening of the air supply pipe faces the separating device 4 and the trimming device 5 so as to purge the concave mold and the waste material into the first collecting device 6 in time, and the obstacle is cleared for the subsequent separating operation and trimming operation, wherein the number of the air supply pipes is designed according to the working condition, preferably, the air supply pipes are provided in two groups, the two groups of air supply pipes are respectively provided corresponding to the separating device 4 and the trimming device 5, accordingly, the number of the air supply pipes of each group is determined according to the actual working condition, preferably, the number of the air supply pipes corresponding to the trimming device 5 is twice the number of the air supply pipes of the other air supply pipes, so that the first blowing pipe is smoothly carried out for the subsequent blowing and the trimming operation is carried out, and the waste material is fully removed.
The contact lens demolding machine is mainly used for demolding and separating a mold assembly (the mold assembly is the same as the mold assembly described in each embodiment below) formed in the preparation process of a contact lens, particularly in the molding process, and the conveying device 3 conveys the mold assembly to the separating device 4 under the control of the control device 2 when the contact lens demolding machine is specifically applied; in the separating device 4, the separating device 4 performs demolding separation on the conveyed die assembly, so that the female die and the male die are separated, demolding separation treatment is realized, wherein the separated female die enters the first collecting device 6, and the separated male die enters the trimming device 5; in the trimming device 5, the trimming device 5 trims the entered male mold, as most of the contact lenses are made of materials such as polymer resin, especially in the molding preparation process, when a primary model of the contact lenses is formed between the female mold and the male mold, part of raw materials overflows and remains on the periphery of the male mold, the residue and the waste on the male mold are removed by the trimming device 5, so that the processing of the primary model of the contact lenses in the later stage is facilitated, the residue and the waste obtained by trimming are sent to the first collecting device 6 for collection, and a dust collector is arranged below the first collecting device 6 to assist in sucking the female mold and the residual waste slag; the male molds trimmed by the trimming device 5 enter a second collecting device 7 for collection, the male molds in the second collecting device 7 are orderly arranged through vibration of a machine and self gravity, primary products of contact lenses are attached to the male molds collected by the second collecting device 7, and the primary products are subjected to the next steps of water quenching, sterilization and the like according to the whole arrangement of the process. In general, the contact lens demolding machine is operated continuously through the synergistic effect of the conveying device 3, the separating device 4, the trimming device 5 and the blowing device 9, fully automatic treatment is carried out in the whole process, so that the female die and the male die of the die assembly are completely separated, residual waste materials on the periphery of the male die are removed, and the separated materials are respectively collected, thereby realizing efficient, high-quality and orderly demolding treatment with uniform specification, saving the economic cost, avoiding the loss and damage caused by uneven force application of different operators, guaranteeing the uniform specification of contact lens products, and improving the production efficiency of the contact lenses.
Example 2
As shown in fig. 1 to 3, the present invention provides a contact lens stripper, which is basically configured and applied as in embodiment 1, in order to ensure the stripping efficiency and quality, and in particular, as shown in fig. 4, the conveyor 3 comprises a conveyor plate 301 and a guide channel 302 connected to each other; the separation device 4 comprises a separation rotary disc 401 and a separation operation part 402, wherein the separation rotary disc 401 and the separation operation part 402 are respectively and fixedly connected with the bracket, a plurality of separation limiting parts 403 are arranged on the separation rotary disc 401, and the separation operation part 402 is arranged above the separation limiting parts 403; the guide channel 302 is arranged in close proximity to the separation rotary disc 401; the trimming device 5 comprises a trimming rotary disc 501 and a trimming limiting part 502, and the trimming rotary disc 501 and the trimming limiting part 502 are respectively fixedly connected with the bracket; a first male die limit guide 10 is provided between the separation rotary disc 401 and the dressing rotary disc 501; a second male die limit guide part 11 is arranged between the second collecting device 7 and the trimming rotary disc 501; the separating rotary disk 401 and the dressing rotary disk 501 are rotated in the same direction.
In the above embodiment, in order to ensure that the spacing guidance on the male mold is performed in order, the first male mold spacing guiding portion 10 and the second male mold spacing guiding portion 11 are respectively and fixedly connected with the support bracket. The direction of the separating rotary disk 401 is the same as that of the trimming rotary disk 501 when rotating, so that the separated male die can conveniently enter the trimming device 5 to perform trimming processing at the fastest speed, meanwhile, the influence of falling damage and the like on the male die caused by steering adjustment is avoided, the trimmed male die can be conveniently collected in time, and in order to improve the efficiency of demolding separation and trimming, preferably, the separating rotary disk 401 and the trimming rotary disk 501 rotate clockwise when rotating.
In the above embodiment, in order to improve the transfer efficiency of the mold assembly formed by the female mold and the male mold, the transfer plate 301 in the transfer device 3 is preferably a vibration plate, and a track for placing the mold assembly in a spiral progressive manner is provided inside the vibration plate, so that a plurality of mold assemblies can be placed in the vibration plate at a time, thereby facilitating the large-scale operation; an outlet is arranged at the top of the vibration disc, the guide channel 302 is arranged at the outlet of the vibration disc, the vibration disc sequentially transmits vibration of each die assembly placed in the vibration disc to the outlet of the vibration disc, then the die assemblies enter the guide channel 302 one by one, after each rotation of the separation rotary disc 401 for a certain angle, the separation limit part 403 on the separation rotary disc 401 rotates to the outlet of the guide channel 302, and the guide channel 302 guides the die assemblies into the separation limit part 403 of the separation rotary disc 401 close to the outlet of the guide channel 302 one by one, so that continuous feeding operation is formed; preferably, the transfer plate 301 is a vibrating rotary plate to increase the transfer speed of the mold assembly, and the start, stop and speed control of the transfer plate 301 can be controlled and adjusted by the start-stop controller 201.
In the above-described contact lens stripper application, the basic operation is the same as that of example 1, specifically, the mold assembly is transferred to the outlet of the transfer plate 301 by vibration or the like through the transfer plate 301, and guided into the separation limiting portion 403 of the separation rotary plate 401 adjacent to the guide passage 302 via the guide passage 302; as the separation rotating disc 401 rotates, when the separation limiting part 403 rotates to the position right below the separation operating part 402, the separation operating part 402 performs pressing separation on the die assembly in the separation limiting part 403, so that the female die and the male die are separated from each other, the separated female die enters the first collecting device 6 in a blowing mode and the like, and the separated male die enters the trimming rotating disc 501 through the first male die limiting guide part 10; along with the rotation of the trimming rotary disk 501, the trimming rotary disk 501 and the trimming limiting part 502 are combined to remove residual excessive materials and residues at the edge of the male die, and the removed waste residues enter the first collecting device 6 for collection in a blowing mode and the like; the male die after the residue is removed enters the second collecting device 7 for collection through the guide of the second male die limiting guide part 11.
Example 3
As shown in fig. 1 to 4, the basic structure of the contact lens stripper of the present invention is as set forth in embodiment 2, in order to ensure the efficiency and quality of the continuous demolding and separating operation of the mold assembly formed by the female mold and the male mold, specifically, the bottom of the guide channel 302 is higher than the bottom of the separation limiting portion 403, and the top of the guide channel 302 is lower than the bottom of the separation operating portion 402, so that the mold assembly is buckled on the separation limiting portion 403, and the female mold located at the top of the mold assembly protrudes, which is beneficial for the separation operating portion 402 to perform the pressing separation operation, and the separated male mold falls to the bottom of the separation limiting portion 403; the bottom of the separation limiting part 403 and the bottom of the trimming rotary disc 501 are preferably arranged on the same horizontal plane, so that the separated male die can be conveniently guided by the first male die limiting guide part 10 to smoothly enter the trimming rotary disc 501; the separation limiting parts 403 are preferably arranged at intervals on the periphery of the separation rotary disk 401, the number of the separation limiting parts is determined according to the volumes of the separation rotary disk 401 and the die assembly, and preferably more than 8 separation limiting parts 403 are preferably grooves on the edge of the separation rotary disk 401, so that the integrated management and regulation are facilitated; the distance between the bottom of the separation operation part 402 and the top of the separation limiting part 403 is not higher than one concave die, so as to provide a guarantee for successful press-fit separation of the concave die and the convex die.
In the above embodiment, in order to ensure that the mold assembly smoothly enters the separating device 4 for demolding and separating, the separating rotary disk 401 is preferably provided as a double-layer structure having the same central rotary shaft, and includes an upper separating rotary disk and a lower separating rotary disk; each of the separation limiting parts 403 is disposed around the upper separation rotating disc, preferably, a plurality of grooves are disposed around the upper separation rotating disc, each groove corresponds to one separation limiting part 403, and the bottom of each separation limiting part 403 is the lower separation rotating disc; preferably, the radii of the upper separating rotary disk and the lower separating rotary disk are the same, so that the separated male die is guided onto the trimming rotary disk 501 by the first male die limiting guide part 10; in order to ensure that the separated male die can be stably transferred to the finishing rotary disc 501 at a relatively high speed, preferably, as shown in fig. 5, the first male die limit guide portion 10 includes a limit post 1001 and a guide portion 1002 connected to each other, the limit post 1001 is fixedly disposed on the support frame 1, and the limit post 1001 is located between the separating rotary disc 401 and the finishing rotary disc 501; the length of the guiding portion 1002 is greater than the distance between the limiting post 1001 and the axle center of the separating rotary disk 401 to ensure the transfer of the separated male mold, preferably, the guiding portion 1002 is extended in the gap between the upper separating rotary disk and the lower separating rotary disk, and passes through the bottom of the separating limiting portion 403 closest to the trimming rotary disk 501; preferably, the guiding portion 1002 is made of sheet metal, so as to keep elasticity and facilitate resetting; in a specific application, when the separated male mold passes the guide portion 1002, the male mold that is blocked from rotating by the guide portion 1002 continues to rotate with the separating rotating disc 401, so that the male mold is separated from the separating limiting portion 403 and transferred into the trimming rotating disc 501 to move rotationally with the trimming rotating disc 501.
Example 4
As shown in fig. 1 to 5, the present invention provides a contact lens stripper, which is basically configured and applied in the same manner as in embodiment 2 or embodiment 3, in order to ensure the trimming effect and efficiency on the separated male mold, specifically, the trimming rotary disc 501 is configured to have a double-layer structure with the same central rotation axis, wherein the double-layer structure is an inner trimming rotary disc and an outer trimming rotary disc, respectively, and the inner trimming rotary disc is disposed above the outer trimming rotary disc; the radius of the inner trimming rotary disc is smaller than that of the outer trimming rotary disc, and the radius difference between the inner trimming rotary disc and the outer trimming rotary disc is preferably slightly larger than the maximum diameter of the convex mould obtained after separation, namely, the convex mould can stably rotate along with the trimming rotary disc 501; the gear structure is arranged around the internal trimming rotary disc, one end of the second male die limiting guide part 11 is abutted to the internal trimming rotary disc, and the other end of the second male die limiting guide part 11 is abutted to the second collecting device 7.
In the above embodiment, the gear structure of the internal trimming rotary disk is arranged to facilitate the cleaning and trimming of the scrap residues at the edge of the male die; the second male die limiting guide part 11 is preferably arranged by the trimming limiting part 502, after the male die enters a trimming channel formed by the inner trimming disc and the trimming limiting part 502 along with the rotation of the outer trimming disc, the waste materials and the like remained on the male die are effectively removed under the combined action of the inner trimming disc and the trimming limiting part 502, after the trimmed male die leaves the trimming limiting part 502 along with the rotation of the outer trimming disc, the trimmed male die enters the second collecting device 7 through the second male die limiting guide part 11, and the second male die limiting guide part 11 is arranged by abutting the inner trimming disc and the trimming limiting part 502 so as to facilitate timely collection of the trimmed male die, and avoid the phenomenon that the operation of the subsequent male die is blocked due to inclination and the like; preferably, the second punch limit guide 11 is provided in a rail shape so as to more effectively guide and limit the punch.
In the above embodiment, in order to improve the trimming effect without damaging the contact lens at the top of the male mold, as shown in fig. 5, the trimming stopper 502 is disposed close to the first collecting device 6, and the inner edge of the trimming stopper 502 is parallel to the outer edge of the trimming rotary disc 501; the inner side of the trimming limiting part 502 is provided with a gear structure, so that the trimming limiting part and the inner trimming rotary disk with the gear structure are matched to perform residue and waste removal trimming on the edge of the male die together, and the trimming efficiency and the trimming effect can be improved; meanwhile, preferably, the trimming limiting portion 502 is arranged in a circular arc shape with the center of the trimming rotary disc 501 as the center, and the arc of the circular arc formed by the trimming limiting portion 502 is smaller than 180 degrees; in order to ensure that the overall residue and waste removal and trimming are performed at different heights of the convex mold, the trimming effect is improved, the thickness of the trimming limiting portion 502 is preferably gradually increased along the same direction, preferably, as shown in fig. 6, the trimming limiting portion 502 comprises an upper trimming limiting portion 50201 and a lower trimming limiting portion 50202, different numbers of gaskets are arranged between the upper trimming limiting portion 50201 and the lower trimming limiting portion 50202, the number of gaskets arranged between the upper trimming limiting portion 50201 and the lower trimming limiting portion 50202 is gradually increased along the circular arc direction of the rotation of the trimming rotary disk 501, preferably, as shown in fig. 6, the number of the upper trimming limiting portion 50201 is three, and the number of gaskets arranged between the three upper trimming limiting portion 50201 and the lower trimming limiting portion 50202 is sequentially 0, 2 and 4 according to the sequence of contact with the convex mold, so that the waste and the residue on the convex mold are comprehensively and thoroughly removed.
Example 5
As shown in fig. 1 to 6, in the contact lens demolding machine according to the present invention, the basic structure is set and applied in the same manner as in embodiment 2, embodiment 3 or embodiment 4, in order to ensure the effective demolding and separation of the mold assembly, as shown in fig. 7, the separation operation portion 402 is set to be a separation roller 4024, the separation roller 4024 is connected to a fixing frame 4021 through a connecting frame 4022, and the fixing frame 4021 is connected to the supporting frame 1; two groups of bearings 4023 are arranged in the separation rolling wheel 4024, the separation rolling wheel 4024 is driven by double bearings to ensure the operation power and speed, and the bearings 4023 and the separation rolling wheel 4024 are fixed through a bearing cover plate 4025.
In the above embodiment, the separation roller 4024 rotates under the control of the control device 2, after the mold assembly placed in the separation limiting portion 403 rotates below the separation roller 4024, the mold assembly is extruded by the separation roller 4024 due to the distance between the separation roller 4024 and the top of the mold assembly, the separated male mold falls to the bottom of the separation limiting portion 403, continues to be guided onto the trimming rotary disk 501 by the first male mold limiting guide portion 10 during the rotation of the separation rotary disk 401, and the separated female mold is driven by the rotation of the separation roller 4024 and is purged by the blowing device to enter the first collecting device 6 for collection.
In the above embodiment, in order to ensure the structural stability of the separation roller 4024, the connecting frame 4022 and the fixing frame 4021 are fixedly locked by screws, two sets of bearings 4023 are sleeved on the connecting frame 4022, and the bearing cover plate 4025 is connected with the connecting frame 4022 by screws, so that the separation roller 4024 and the bearings 4023 are fixed, and the separation roller 4024 is driven to operate by the double bearings 4023. In order to ensure sufficient demolding and separation while protecting the contact lens on the male mold, the distance between the bottom of the separation roller 4024 and the top of the female mold at the upper part of the mold assembly is preferably 1-2mm, which is less than the height of the protrusion of the female mold, so that the female mold and the male mold can be just pressed and separated when the mold assembly passes the separation roller 4024, and the lens at the top of the male mold is not damaged. Preferably, the separating roller wheel 4024 is a circular metal wheel, and the separating roller wheel 4024 is designed to have a thick center, a thin edge and a chamfer at the edge, and by providing the chamfer at the edge, the effects of not damaging the lens at the top of the male die, but effectively pressing and separating the female die and the male die of the die assembly can be achieved.
Example 6
As shown in fig. 1 to 5, the basic structure of the contact lens stripper of the present invention is the same as that of embodiment 2, embodiment 3 or embodiment 4, and the separating operation part can also be a pressing rod mechanism for ensuring the effective stripping and separating of the mold assembly, as shown in fig. 8, the pressing rod mechanism comprises a pneumatic pressing rod 12 and a pressing rod 13 with rounded corners, which are connected, and the pneumatic pressing rod 12 is connected with the support frame 1 through a fixed support part.
In the above embodiment, in order to ensure sufficient demolding and separation and protect the contact lens on the male mold, the arrangement of the pressing rod 13 is positioned right above the mold assembly, the distance between the head of the pressing rod 13 and the top of the female mold on the upper portion of the mold assembly is smaller than the height of the protrusion of the female mold, the distance between the head of the pressing rod 13 and the top of the female mold on the upper portion of the mold assembly is preferably 1 mm-2 mm, when the mold assembly passes through the pressing rod 13, the pressing rod 13 is controlled by the pneumatic pressing rod 12, the pressing rod 13 presses the mold assembly to enable the female mold to be exactly separated from the male mold, and the round-head chamfer design of the pressing rod 13 can ensure that the lens on the top of the male mold is not damaged when the pressing rod 13 presses down, so that the lens on the top of the male mold is effectively protected. In order to ensure the demolding and separating efficiency, the pressing rod 13 is preferably a metal rod so as to adapt to the continuous operation requirement of the pressing rod 13.
The invention is not limited to the embodiments described above, but any obvious modifications or alterations to the above embodiments may be made by a person skilled in the art without departing from the spirit of the invention and the scope of the appended claims.
Claims (10)
1. Contact lens stripper, its characterized in that:
the device comprises a supporting frame, and a control device, a conveying device, a separating device, a trimming device and a collecting device which are arranged on the supporting frame, wherein the conveying device is arranged adjacent to the separating device, the trimming device is arranged adjacent to the separating device, the collecting device comprises a first collecting device and a second collecting device, the first collecting device is arranged adjacent to the separating device and the trimming device, and the second collecting device is arranged adjacent to the trimming device; the trimming device comprises a trimming rotary disc and a trimming limiting part; the trimming rotary disc is of a double-layer structure with the same central rotary shaft, wherein the double-layer structure is an inner trimming rotary disc and an outer trimming rotary disc respectively, the inner trimming rotary disc is arranged above the outer trimming rotary disc, the radius of the inner trimming rotary disc is smaller than that of the outer trimming rotary disc, and a gear structure is arranged around the inner trimming rotary disc; a gear structure is arranged on the inner side of the trimming limiting part; the trimming limiting part and the inner trimming rotary disk are matched with each other to trim the edge of the male die;
the thickness of the trimming limiting part is gradually increased along the same direction, the trimming limiting part comprises an upper trimming limiting part and a lower trimming limiting part, different numbers of gaskets are arranged between the upper trimming limiting part and the lower trimming limiting part, and the number of the gaskets arranged between the upper trimming limiting part and the lower trimming limiting part is gradually increased along the arc direction of the rotation of the trimming rotary disk.
2. The contact lens stripper of claim 1, wherein:
the conveying device, the separating device and the trimming device are sequentially and adjacently arranged; the control device and the trimming device are arranged in a separated mode through the first collecting device, and the separating device and the trimming device are arranged on the same side of the first collecting device.
3. The contact lens stripper of claim 1, wherein:
the support frame is also provided with a purging device, the purging device comprises an air supply pipe and an air pump which are connected, and the pipe orifice of the air supply pipe faces the separation device and the trimming device.
4. A contact lens stripper as defined in any one of claims 1 to 3, wherein:
the conveying device comprises a conveying disc and a guide channel which are connected;
the separation device comprises a separation rotating disc and a separation operating part, wherein the separation rotating disc and the separation operating part are respectively and fixedly connected with the support frame, a plurality of separation limiting parts are arranged on the separation rotating disc, and the separation operating part is arranged above the separation limiting parts;
the guide channel is arranged close to the separation rotating disc;
the trimming rotary disc and the trimming limiting part are fixedly connected with the supporting frame respectively;
a first male die limit guide part is arranged between the separation rotating disc and the trimming rotating disc;
a second male die limiting guide part is arranged between the second collecting device and the trimming rotary disc;
the direction of the separating rotary disk and the direction of the finishing rotary disk are the same when the separating rotary disk and the finishing rotary disk rotate.
5. The contact lens stripper of claim 4, wherein:
the bottom of the guide channel is higher than the bottom of the separation limiting part, and the top of the guide channel is lower than the bottom of the separation operating part;
the bottom of the separation limiting part and the bottom of the trimming rotary disk are on the same horizontal plane;
the separation limiting parts are arranged at intervals on the periphery of the separation rotating disc;
the distance between the bottom of the separation operation part and the top of the separation limiting part is not higher than one concave die.
6. The contact lens stripper of claim 4, wherein:
the separation operation part is a separation rolling wheel, and a chamfer is arranged at the edge of the separation rolling wheel.
7. The contact lens stripper of claim 4, wherein:
the separation operation part is a downward pressing rod type mechanism and comprises a pneumatic downward pressing rod and a downward pressing rod, wherein the pneumatic downward pressing rod is connected with the downward pressing rod, the downward pressing rod is provided with a round head chamfer, and the pneumatic downward pressing rod is connected with the supporting frame.
8. The contact lens stripper of claim 4, wherein:
one end of the second male die limiting guide part is abutted against the inner trimming rotary disc, and the other end of the second male die limiting guide part is abutted against the second collecting device.
9. The contact lens stripper of claim 1, wherein:
the trimming limiting part is arranged close to the first collecting device, and the inner side edge of the trimming limiting part is parallel to the outer side edge of the trimming rotary disk; the trimming limiting part is arranged in an arc shape by taking the center of the trimming rotary disk as the center, and the radian of the arc formed by the trimming limiting part is smaller than 180 degrees.
10. The contact lens stripper of claim 4, wherein:
the separation rotary disc is of a double-layer structure with the same central rotary shaft and comprises an upper separation rotary disc and a lower separation rotary disc; each separation limiting part is arranged around the upper separation rotating disc;
the first male die limiting guide part comprises a limiting column and a guide part which are connected, the limiting column is fixedly arranged on the supporting frame, and the limiting column is positioned between the separating rotating disc and the trimming rotating disc; the guide part is arranged in a gap between the upper separation rotating disc and the lower separation rotating disc in an extending way and penetrates through the bottom of the separation limiting part closest to the trimming rotating disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710055523.XA CN108340604B (en) | 2017-01-25 | 2017-01-25 | Contact lens stripper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055523.XA CN108340604B (en) | 2017-01-25 | 2017-01-25 | Contact lens stripper |
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| CN108340604A CN108340604A (en) | 2018-07-31 |
| CN108340604B true CN108340604B (en) | 2023-09-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142910A (en) * | 2019-06-18 | 2019-08-20 | 甘肃康视达科技集团有限公司 | The full-automatic stripper apparatus of soft contact lens and method |
| CN110356027A (en) * | 2019-07-25 | 2019-10-22 | 苏州茂特斯自动化设备有限公司 | It is a kind of for from mold Separator lens automatically take lens device |
| CN113400529B (en) * | 2021-07-01 | 2023-07-21 | 西朗自动化设备(常州)有限公司 | Contact lens demolding and taking machine and demolding and taking method thereof |
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| CN108340604A (en) | 2018-07-31 |
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Effective date of registration: 20230506 Address after: Floor 3, No. 31 Chuangzhi Road, Kunlun Street, Liyang City, Changzhou City, Jiangsu Province, 213376 Applicant after: Xilang Automation Equipment (Changzhou) Co.,Ltd. Address before: No. 477 Gaoxin Road, Fengman District, Jilin, Jilin Province Applicant before: Zhou Zhihong |
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