CN111320360A - Automatic feeding and discharging device for hot press molding of optical lenses - Google Patents
Automatic feeding and discharging device for hot press molding of optical lenses Download PDFInfo
- Publication number
- CN111320360A CN111320360A CN202010144626.5A CN202010144626A CN111320360A CN 111320360 A CN111320360 A CN 111320360A CN 202010144626 A CN202010144626 A CN 202010144626A CN 111320360 A CN111320360 A CN 111320360A
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- Prior art keywords
- outer sleeve
- mold
- cylinder
- lens
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses an automatic feeding and discharging device for hot press forming of optical lenses, which comprises a die conveying mechanism, an outer sleeve mechanical arm, a lens guiding mechanism, an inner sleeve taking and placing mechanism, a lens and blank taking and placing mechanism, a storage mechanism, a die standby area and a die storage area. The mould conveying mechanism comprises a conveyor, a linear module and a rodless cylinder; the outer sleeve mechanical arm consists of an outer sleeve guiding mechanism and an outer sleeve mechanical arm and is composed of a cylinder which is responsible for lifting and clamping, after the mold is conveyed to the position right below the outer sleeve mechanical arm through the conveying mechanism, the mold is guided by the outer sleeve guiding mechanism, and then the outer sleeve mechanical arm clamps the outer sleeve. In addition, the invention optimizes the motion track through accurate and effective path planning and control algorithm, improves the positioning precision and the assembly precision of products, and realizes automatic feeding and discharging, automatic mould pressing and automatic detection of the optical lens through a visual compensation recognition algorithm.
Description
Technical Field
The invention relates to the field of optical lens manufacturing, in particular to an automatic feeding and discharging device for optical lens hot press molding.
Background
With the development of social digitalization and intellectualization, the demand of people for optical lens products is increasing continuously, and the demand of improving the manufacturing precision and the production efficiency of optical glass forming lenses is strong. Due to the fact that operation levels and proficiency of operators are different, production efficiency of the aspheric lens is greatly affected, and even die precision is damaged sometimes. With the development requirements of various enterprises, it is important to design and manufacture a device capable of realizing automatic assembly and mold picking and placing, so as to improve the production efficiency and product quality of optical products. Along with the wide application of various small-sized aspheric optical components, the manufacturing precision requirement of the forming die is gradually improved, and the die taking and placing are slowly converted into automatic taking and placing by manual taking and placing. Although relatively advanced glass molding manufacturing automation equipment exists abroad at present, the high equipment cost can increase the operation cost of production enterprises.
In the prior art, chinese patent publication No. CN109626800A discloses an aspheric optical lens press molding line in which a molding die discharged from a discharge unit is removed by a robot loader to take out a finished product, and then a preform is loaded into a molding die and the molding die is assembled and fed to a supply unit. In addition, the core picking and placing device disclosed in chinese invention with publication No. CN109678324A is provided with a clamping part for absorbing and clamping an upper core of a core, which is disposed on a lower side of an upper plate. The mold core taking and placing device only needs simple control, can realize automatic taking and placing of the mold core and the lens, is convenient, fast, stable and reliable, improves the automation degree and the production efficiency of the glass mold pressing industry, and saves labor force and production cost.
However, although the above solution can improve the production efficiency of glass molding to some extent, the precision or automation of the molded lens still needs to be improved. And the corresponding detection mechanism is lacked in the process of feeding and discharging in the mould pressing, so that the scheme is limited in industrial application. Lack the mechanism of corresponding storage, restricted unloader's degree of automation greatly. And the distance between the die core and the inner sleeve reaches the micron level, and the precision of the motion matching of the existing scheme is difficult to meet the requirement. According to the scheme, the motion trail is optimized through an accurate and effective path planning and control algorithm, and the positioning precision and the assembling precision of a product are improved, so that the production efficiency of the lens is improved, and the stability of a system is enhanced; and by utilizing an advanced visual identification compensation algorithm, the appearance quality of the mold and the lens is accurately and efficiently judged, the subjective uncertainty of people is reduced, and the stability and the accuracy of product monitoring are improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic feeding and discharging device for optical lens hot press molding, which realizes automatic production in the glass lens molding process, improves the production efficiency and reduces the manual loss.
The device comprises a mould conveying mechanism, an outer sleeve mechanical arm, a lens guide mechanism, an inner sleeve taking and placing mechanism, a lens and blank taking and placing mechanism, a storage mechanism, a mould standby area and a mould storage area.
The mould conveying mechanism moves on a plane which can be leveled, and comprises a conveyor, a linear module, a rodless cylinder and the like;
the outer sleeve taking and placing mechanism consists of an outer sleeve guiding mechanism and an outer sleeve manipulator which both consist of lifting and clamping cylinders, a mould is conveyed to the position under the outer sleeve manipulator through the conveying mechanism, and the outer sleeve is guided by the outer sleeve guiding mechanism and then clamped;
the inner sleeve taking and placing mechanism comprises a lifting platform, a vacuum chuck, a cylinder, a linear guide rail and the like;
the lens taking and placing mechanism comprises a vision system, a vacuum chuck, a three-axis module and a rotary cylinder;
the storage mechanism comprises a gear rack, a motor, a three-axis module, a linear bearing and the like, and the gear rack is driven by the motor to control the storage position to lift.
The conveyer is provided with a conveyer belt, the mould enters the conveyer belt after being cooled, the conveyer belt is made of high-temperature resistant materials, and the installation height can be finely adjusted.
Be equipped with V type piece on the rodless cylinder, after the mould via the conveyer belt, transport it to linear guide department through the V type piece on the rodless cylinder, have three cylinder above the unipolar module, cylinder I has trapezoidal mouth and linear guide's above the board cooperation back, drives the guide rail and advances the segment distance after, cylinder II promotes the mould again.
The outer sleeve mechanical arm comprises a lifting and clamping cylinder, after the mold is conveyed to the position right below the outer sleeve mechanical arm through the conveying mechanism, the outer sleeve guide mechanism guides the mold, and then the outer sleeve mechanical arm clamps the outer sleeve.
The lifting platform drives a lead screw through a motor, the lead screw drives a linear guide rail to move, and the inner sleeve and the mold core are separated and assembled to ensure the matching precision.
The inner sleeve picking and placing mechanism is jacked on the fixed plate through an air cylinder, then a vacuum adsorption mode is adopted, the upper die core and the lower die core are separated through a vacuum sucker, the upper die core is driven by an electric cylinder driving motor to move through a linear guide rail, an oil pressure buffer is arranged at the lower part of the upper die core, the inner sleeve picking and placing mechanism is provided with three movable hoses for blowing air, the middle movable hose blows cooling air, and the upper die core and the lower die core are respectively subjected to electrostatic dust removal through an ion air gun.
The lens and blank taking and placing mechanism is provided with a vision recognition system, two vacuum chucks are adopted, the vacuum chucks for taking and placing the lens are arranged on the rotary cylinder, the absorption of three positions of 0 degree, 90 degrees and 180 degrees can be carried out, the molded lens is placed on the material tray through the triaxial module, and the blank of the material tray is placed into the mold after being guided.
As an improvement of the scheme, the lens and the blank taking and placing mechanism are placed in the mold through the blank after the alignment device, the vision system shoots to judge whether the blank is concentric with the mold, and error compensation is carried out through feedback.
As an improvement of the scheme, the storage mechanism drags the material tray to enter the storage area through the air cylinder below the triaxial module, the storage area drives the gear rack to move up and down through the limiting control position, and the storage area can move up and down through the linear bearing to complete the replacement of the material tray.
As an improvement of the scheme, the automatic feeding and discharging device is characterized by comprising a mold waiting area and a mold storage area. The area to be placed is the place where the die is stored during inspection, and the die storage area is the place where the die is stored when workers go to work.
The implementation of the invention has the following beneficial effects:
the invention provides an automatic feeding and discharging device for hot press forming of optical lenses, wherein automatic feeding and discharging of lenses and blanks can be completed through a plurality of rows of stations by a mold after being molded by a mold pressing machine. The selective inspection of the mold pressing can be realized in the mold standby area. The device is provided with a storage system, and 24-hour unattended processing can be realized. The automatic feeding and discharging, automatic die pressing and automatic detection of the optical lens are accurately realized.
Drawings
FIG. 1 is a view of an automatic loading and unloading apparatus for hot press molding of optical lenses according to the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a schematic view of the position of the linear guide structure;
FIG. 4 is a schematic view of the inner sleeve;
FIG. 5 is a schematic view of a pick-and-place lens;
FIG. 6 is a schematic view of a warehouse structure.
Reference numbers in the figures: 1. a conveyor; 2. a mold standby area; 3. a three-axis module; 4. a storage mechanism; 5. an outer sleeve manipulator; 6. a single axis module; 7. an inner sleeve picking and placing mechanism; 8. a lens and blank pick-and-place mechanism; 9. a lens guide mechanism; 10. a mold storage area; 2-1, a push rod; 2-2 photoelectric sensors; 2-3, a first cylinder; 2-4, a rodless cylinder; 2-5, a second cylinder; 2-6, a third cylinder; 2-7, a fourth cylinder; 2-8, an outer sleeve guide clamp; 2-9, an outer sleeve manipulator; 3-1, a first linear guide rail; 4-1, first vacuum adsorption; 4-2, a motor; 4-3, a second linear guide rail; 4-4, a fifth cylinder; 4-5, fixing plates; 4-6, first air blowing; 4-7, second air blowing; 4-8, third air blowing; 4-9, a sixth cylinder; 4-10, second vacuum adsorption; 4-11, an electric cylinder; 4-12, oil pressure buffer; 4-13, a vision system; 5-1, a first sucker; 5-2, a second sucker; 5-3, a seventh cylinder; 5-4, an eighth cylinder; 6-1, a storage bin; 6-2, linear bearings; 6-3, gear and rack; 6-4, empty trays; 6-5, storing the blank in a tray.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an automatic loading and unloading device for optical lens hot press forming mainly comprises a conveyor 1, a mold placement area 2, a three-axis module 3, a storage mechanism 4, an outer sleeve manipulator 5, a single-axis module 6, an inner sleeve pick-and-place mechanism 7, a lens and blank pick-and-place mechanism 8, a lens guiding mechanism 9, and a mold storage area 10.
The specific implementation mode is that after the lens molded by the molding press is cooled, a push rod on the molding press pushes a mold onto a conveyor 1, the mold is positioned on a stop block of a first cylinder 2-3, meanwhile, a photoelectric sensor 2-2 detects the mold of the conveyor 1, a rodless cylinder 2-4 pushes the mold onto a first linear guide rail 3-1, a trapezoidal block on a second cylinder 2-5 is matched with the linear guide rail 3-1, a single-shaft module 6 drives the mold on the linear guide rail to move, after the mold is in place, a third cylinder 2-6 pushes the mold to be right below a manipulator, the mold has the structure of an upper mold core, a lower mold core, an outer sleeve, an inner sleeve and a molded lens, an outer sleeve guiding clamp 2-8 guides the mold located below, and the manipulator 2-9 clamps the outer sleeve, the third cylinder 2-6 continues to push the mold to the lifting platform 7, the motor 4-2 drives the mold to vertically ascend along the second linear guide rail 4-3, after the mold is in place, the fifth cylinder 4-4 pushes the mold to be propped against the fixing plate 4-5, the first air blow 4-6 starts to blow for accelerated cooling, the electric cylinder 4-11 descends along the second linear guide rail 4-3 until the second vacuum adsorption 4-10 is in contact with the upper mold core, at the moment, the oil pressure buffer 4-12 buffers the mold, the upper mold core is adsorbed by the second vacuum adsorption 4-10, the upper mold core is separated, the lower mold core is also adsorbed by the first vacuum adsorption 4-1, and after the upper mold core is separated, the sixth cylinder 4-9 clamps and contracts to prevent the lens and the upper mold core from falling.
At the moment, a lens taking and placing device on the triaxial module is prepared to work in advance, a first sucker 5-1 sucks a blank in a tray for placing the blank, the blank is placed in a guide mechanism 9 to be guided, the blank is adsorbed on the first sucker 5-1 after being guided, a preset position is reached to prepare for adsorbing a lens, after the mold core division is completed, a second sucker 5-2 extends into an inner sleeve to suck the lens towards a lower mold core, if the lens is not sucked, a seventh cylinder 5-3 rotates 180 to suck the lens upwards, under the normal condition, the molded lens can be sucked through the steps, if the lens is not sucked, equipment reports errors, a mold is pushed to a mold storage area to suck the lens, then the lower mold core is divided, and meanwhile, second air blowing 4-7 and third air blowing 4-8 are used for air blowing and dust removal of the upper mold core and the lower mold core, and closing the lower mold core respectively, the blank of the first sucking disc 5-1 is placed on the lower die core, the vision system 4-13 is driven by the air cylinder to move to the position right above the die to take a picture, the upper die core is closed, and the lifting platform 7 returns to the initial position. After the single-shaft module 6 conveys the die back to the position right below the outer sleeve mechanical arm 5, the outer sleeve is put down, the feeding and discharging of the die are completed at the moment, and the die is conveyed to the inlet of the die press to wait for die pressing.
In the process of mould pressing, if a sampling inspection is needed, only a sampling inspection number needs to be set on an interface of an upper computer, the first cylinder 2-3 contracts, the mould stays in a waiting area under the action of the conveying belt, and the mould is pushed back to the conveying belt by the rodless cylinder 2-4 to reset. The die storage area is used when workers need to leave work, and the fourth air cylinders 2-7 are pushed to the die storage area. In addition, when the material tray needs to be emptied after being filled, the material tray positioning cylinder 6 is loosened, the air rod below the three-axis module extends to be matched with the small hole in the material tray, the material tray is dragged into the bin 6-1, after the material tray enters the bin, the motor drives the gear rack 6-3 to move upwards, the position of the empty material tray 6-4 is determined by the photoelectric sensor 2-2 along the guide column and the linear bearing 6-2, the bin 6-1 moves upwards, then the empty material tray 6-4 is separated, and the blank material tray stores the 6-5 lens trays in a same-principle mode.
In summary, the implementation of the invention has the following beneficial effects:
1. the method has the advantages that a path planning and control algorithm is accurate and effective, the motion track is optimized, and the product positioning precision and the assembly precision are improved, so that the lens production efficiency is improved, and the system stability is enhanced;
2. by utilizing an advanced visual identification compensation algorithm, the appearance quality of the mold and the lens is accurately and efficiently judged, the subjective uncertainty of people is reduced, and the monitoring stability and accuracy of the product are improved;
3. the mold has complete functional design, is close to production, and is provided with a mold standby area and a mold storage area;
4. the automatic degree is high, and a storage structure is arranged, so that a series of problems of operation errors, high labor cost and the like caused by manual operation are replaced;
5. the installation is convenient and adjustable, and in order to facilitate the leveling of the working surface, the device is additionally provided with a structure capable of leveling in detail.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (9)
1. The device for automatic feeding and discharging of the hot press forming of the optical lens is characterized by comprising a mold conveying mechanism, an outer sleeve mechanical arm, a lens guiding mechanism, an inner sleeve taking and placing mechanism, a lens and blank taking and placing mechanism, a storage mechanism, a mold waiting area and a mold storage area.
The mould conveying mechanism moves on a plane which can be leveled, and comprises a conveyor, a linear module, a rodless cylinder and the like;
the outer sleeve taking and placing mechanism consists of an outer sleeve guiding mechanism and an outer sleeve manipulator which both consist of lifting and clamping cylinders, a mould is conveyed to the position under the outer sleeve manipulator through the conveying mechanism, and the outer sleeve is guided by the outer sleeve guiding mechanism and then clamped;
the inner sleeve taking and placing mechanism comprises a lifting platform, a vacuum chuck, a cylinder, a linear guide rail and the like;
the lens taking and placing mechanism comprises a vision system, a vacuum chuck, a three-axis module and a rotary cylinder;
the storage mechanism comprises a gear rack, a motor, a three-axis module, a linear bearing and the like, and the gear rack is driven by the motor to control the storage position to lift.
2. The automatic loading and unloading device for hot press forming of optical lenses as claimed in claim 1, wherein the conveyor is provided with a conveyor belt, the mold enters the conveyor belt after being cooled, the conveyor belt is made of high temperature resistant material, and the installation height can be adjusted finely.
3. The apparatus as claimed in claim 1, wherein the rodless cylinder is provided with a V-shaped block, the mold is transported to the linear guide by the V-shaped block on the rodless cylinder after passing through the conveyor, the single-shaft module has three cylinders thereon, and after the cylinder i has a trapezoidal opening to engage with the plate on the linear guide, the cylinder i drives the guide to advance a small distance, and then the cylinder ii pushes the mold.
4. The apparatus of claim 1, wherein the outer sleeve robot comprises a lifting and clamping cylinder, the outer sleeve guiding mechanism guides the mold after the mold is conveyed to a position right below the outer sleeve robot by the conveying mechanism, and then the outer sleeve robot grips the outer sleeve.
5. The apparatus as claimed in claim 1, wherein the elevating platform drives a lead screw by a motor, the lead screw drives a linear guide to move, and the inner sleeve and the mold core are separated and assembled to ensure the matching precision.
6. The apparatus as claimed in claim 1, wherein the inner sleeve picking and placing mechanism is supported on the fixing plate by a cylinder, and then vacuum-sucking is performed, the upper and lower mold inserts are separated by a vacuum chuck, the upper mold insert is driven by an electric cylinder driving motor to move along a linear guide rail, an oil pressure buffer is installed at the lower part of the inner sleeve picking and placing mechanism, the inner sleeve picking and placing mechanism has three movable hoses for blowing air, the middle movable hose blows out cooling air, and the upper and lower two are respectively an ion air gun for performing electrostatic dust removal on the upper and lower mold inserts.
7. An automatic loading and unloading device for hot press forming of optical lens as claimed in claim 1, wherein the lens and blank pick and place mechanism is equipped with a vision recognition system, and two vacuum chucks are used, wherein the vacuum chuck for picking and placing the lens is mounted on the rotary cylinder, and can perform suction at three positions of 0 °, 90 ° and 180 °, and the molded lens is placed on the tray by the three-axis module, and the blank of the tray is placed in the mold after being aligned.
8. The apparatus as claimed in claim 1, wherein the inner sleeve pick-and-place mechanism is used to pick and place the blank into the mold through the guiding device, the vision system takes a picture to determine whether the blank is concentric with the mold, and the error compensation is performed through feedback.
9. The apparatus as claimed in claim 1, wherein the storage mechanism is adapted to move the tray into the storage area through the cylinder below the three-axis module and the small hole of the tray, the storage area is controlled by a position limit, the motor drives the rack and pinion to move up and down, and the storage area can move up and down through the linear bearing, thereby completing the replacement of the tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144626.5A CN111320360A (en) | 2020-03-04 | 2020-03-04 | Automatic feeding and discharging device for hot press molding of optical lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144626.5A CN111320360A (en) | 2020-03-04 | 2020-03-04 | Automatic feeding and discharging device for hot press molding of optical lenses |
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| Publication Number | Publication Date |
|---|---|
| CN111320360A true CN111320360A (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010144626.5A Pending CN111320360A (en) | 2020-03-04 | 2020-03-04 | Automatic feeding and discharging device for hot press molding of optical lenses |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895924A (en) * | 2020-07-15 | 2020-11-06 | 广州精点科技有限公司 | Automatic lens thickness measuring device |
| CN113788603A (en) * | 2021-10-29 | 2021-12-14 | 广东金鼎光学技术股份有限公司 | Automatic mold-sticking-preventing mold taking-out method and mechanism for molded lens |
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| DE102012000418A1 (en) * | 2011-12-23 | 2013-06-27 | J-Plasma Gmbh | Method for producing rod lenses and device therefor |
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| CN109626800A (en) * | 2019-02-01 | 2019-04-16 | 福建上润精密仪器有限公司 | Aspheric optical lens are pressed and molded assembly line |
| CN109678324A (en) * | 2019-02-18 | 2019-04-26 | 广东工业大学 | A kind of mold core fetching device |
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2020
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| CN1778732A (en) * | 2004-11-26 | 2006-05-31 | 亚洲光学股份有限公司 | Glass moulded shaper for positioning nitre materials and bearing glasses |
| DE102012000418A1 (en) * | 2011-12-23 | 2013-06-27 | J-Plasma Gmbh | Method for producing rod lenses and device therefor |
| CN104407425A (en) * | 2014-12-24 | 2015-03-11 | 宁波舜宇车载光学技术有限公司 | Automatic laminator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111895924A (en) * | 2020-07-15 | 2020-11-06 | 广州精点科技有限公司 | Automatic lens thickness measuring device |
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| CN113788603A (en) * | 2021-10-29 | 2021-12-14 | 广东金鼎光学技术股份有限公司 | Automatic mold-sticking-preventing mold taking-out method and mechanism for molded lens |
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Application publication date: 20200623 |
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