Automatic color printing device for discharging contact lens mold

Abstract

The automatic color printing device comprises a working table top, a mold opening and pressing machine, a pad printing machine, a mold closing machine, a rotating disc and a mold base, a material frame translation belt is transversely, horizontally and tangentially arranged on the rear side of the rotating disc, and the material frame translation belt circularly moves from right to left; a to-be-printed area is arranged on the rear side of the right end of the material frame translation belt, a completion area is arranged on the rear side of the left end of the material frame translation belt, a feeding machine is arranged at the position adjacent to the outer side of the rotary disc on the front side of the to-be-printed area, and a mold opening and pressing machine is arranged at the position adjacent to the clockwise rotary disc of the feeding machine. A discharging machine is arranged at the position adjacent to the outer side of the rotary disc on the front side of the completion area, the material frame conveying belt and the rotary disc are linked through the feeding machine and the discharging machine, the size and the occupied area of the color printing device can be greatly reduced through the design, the layout of a production workshop is more optimized, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of color printing of contact lenses, and specifically relates to an automated color printing device for discharging contact lens molds. Background Art

[0002] During the production process of contact lenses, special resin molds are needed to shape the contact lenses. Silicone hydrogel is injected into the bottom mold of the resin mold, and then a cover mold is put on and pressed to solidify the inside, thus completing the production of the contact lens.

[0003] With the changing times and the maturity of technology, contact lenses are no longer just medical products with vision correction function. Colored contact lenses with colored pigment layers or pattern layers can also be used to enlarge the iris, sclera or change the eye pattern and color, etc. Contact lenses have a decorative effect that makes the eyes more eye-catching.

[0004] Therefore, in order to be able to print various colors or patterns on the surface of the contact lens, a special printing device is needed to pad print the pigment, and this step needs to be done before the mold is sterilized and hydrated. Therefore, the specific printing step is to take out the cover mold first, then print it, and then put the cover mold back.

[0005] Among the prior art, patent number; CN213675961U, patent name; A color contact lens printing machine, discloses a color contact lens printing machine, including a base, a rotating disk, loading and unloading stations, a cover removal and pressing station, a printing station and a cover removal and discharging station; the cover removal and pressing station, the printing station and the cover removal and discharging station are circumferentially distributed in sequence on the outer periphery of the rotating disk, and are fixed on the base; the loading and unloading stations are arranged between the cover removal and pressing station and the cover removal and discharging station; the utility model utilizes high-precision, high-speed robot color printing, and does not require manual single-piece frequent color printing; utilizes automatic pressing and discharging molds and adsorption mechanisms, with accurate positioning and higher efficiency; utilizes an automatic rotary workbench to avoid multiple manual removal and placement, reduce labor intensity and improve production efficiency, and can operate the color printing production of beauty contact lenses in one step.

[0006] In the prior art, there is only a color printing device for a petal-shaped one-piece mold. Due to the structure of the petal-shaped one-piece mold itself, the petal-shaped one-piece mold can be conveniently loaded and unloaded directly by a robotic arm. However, a large part of the existing contact lens production is produced using a single-row arrangement, that is, a single-model mold is placed in a row through a arrangement rack to carry out other subsequent production steps. The single-row arrangement rack not only makes subsequent transportation and storage more convenient, but also allows for convenient classification of various contact lenses of different models, patterns, batches, etc., thereby reducing the subsequent classification steps.

[0007] Therefore, a device is needed that can automatically print color on the nesting contact lens mold, so that the nesting can be directly output at the outlet and transferred directly by only putting the nesting into the entrance. Utility Model Content

[0008] In order to solve the above problems, this paper proposes an automated color printing device for contact lens molds. The automated color printing device includes a work surface, a mold opening and pressing machine, a pad printing machine, a mold closing machine, a turntable and a mold base. A turntable is arranged above the work surface, and the mold base is arranged in an equidistant manner on the surface of the turntable. The mold opening and pressing machine, the pad printing machine and the mold closing machine are arranged at the same angle and equidistantly on the outer side of the turntable and the mold base. A material rack translation belt is arranged horizontally and tangently on the rear side of the turntable. The upper surface of the material rack translation belt is flush with the upper surface of the work surface. The material rack translation belt moves cyclically from right to left. The right end rear side of the material rack translation belt is respectively provided with a waiting area, and the left end rear side of the material rack translation belt is respectively provided with a completion area. A feeder is arranged at an adjacent position on the outer side of the turntable on the front side of the waiting area, and an opener and presser is arranged at an adjacent position of the turntable clockwise of the feeder. A discharge machine is provided at an adjacent position on the outer side of the turntable on the front side of the completion area, a clamping machine is provided at an adjacent position on the clockwise turntable of the discharge machine, a plurality of pad printing machines are provided between the mold opening and closing machines, and the turntable rotates clockwise, and the material rack conveyor belt and the turntable are linked through the feeder and the discharger, so as to realize sequential material retrieval and loading on a rack, and at the same time, it can also be linked with the material rack conveyor belt for displacement, thereby reducing the need for the feeder and the discharger to only rotate and clamp the mold with the upper and lower double axes. Therefore, it is only necessary to manually perform the operation of entering and exiting the rack on one side of the automated color printing device to realize fully automated color printing operation, and such a design can also greatly compress the volume and floor space of the color printing device, optimize the layout of the production workshop, and thus improve production efficiency.

[0009] The work surface is in the shape of a square surface, with a turntable protruding from the center of the work surface and axially rotating thereon, and a feeder, a mold opening machine, a pad printer, a mold clamping machine and a discharger fixedly arranged around the outside of the turntable on the upper surface of the work surface, and a material rack translation belt embedded in the surface of the work surface, so that all loading and unloading components are arranged on the square work surface, better automation can be achieved with a sufficiently small footprint, thereby ensuring the overall optimization ratio in terms of economy and practicality.

[0010] The shape of the material rack translation belt is a horizontal rectangular long conveyor belt. The length of the material rack translation belt is greater than three times the length of the rack, and the width of the material rack translation belt is greater than the width of the rack. The rear sides of both ends of the material rack translation belt are flush with the to-be-printed area and the completion area respectively. Guard edges are provided on both sides of the middle part of the material rack translation belt. The material rack translation belt can be used to realize continuous and slow movement of the rack, and the material rack translation belt can also be linked with the turntable. After the feeder or discharging machine has picked up and placed the mold once, the material rack translation belt will slowly move the rack to the left, and move the empty space of the rack to below the rotation range of the feeder or discharging machine, so as to facilitate the subsequent picking and placing of the feeder or discharging machine.

[0011] The rack is in the shape of a rectangular strip, and a plurality of assembling holes are equidistantly arranged on the upper surface of the rack. Nested contact lens molds are placed from top to bottom inside the assembling holes. The rack itself can conveniently classify contact lens molds of the same model, ensuring that a single mold can be placed in a stable and identical orientation, facilitating subsequent equipment operation, and also convenient for stacking, transportation and subsequent liquid injection and other operations.

[0012] The turntable is a circular servo angle rotating disk, and a number of mold bases are equidistantly arranged on the upper surface of the turntable. The turntable rotates in clockwise equal-angle sections, and the mold bases are two rows of equidistant independent groove-type mold bases. The mold bases in one row are bottom mold bases, and the mold bases in the other row are cover mold bases. The bottom mold bases and cover mold bases are parallel to each other, and the number of bottom mold bases and cover mold bases is the same. By arranging mold bases on the turntable, efficient and automated production in a rotating cycle can be achieved, and the mold base also includes a bottom mold base and a cover mold base. The bottom mold base and the cover mold base are adjacent to each other, so that after the cover mold is opened and taken out, it is convenient to place it in a close position to facilitate the subsequent re-closing.

[0013] Both the feeder and the discharging machine are multiple clamping dual-axis robotic arms. The number of clamps of the feeder and the discharging machine is the same as the number of bottom mold bases in a row. The dual-axis feeder and the discharging machine can reduce the number of mechanical parts required to be moved, facilitate the design of the automation program, improve the operation efficiency, and can be easily linked with the material rack translation belt to achieve efficient linkage.

[0014] The mold opening and pressing machine is a blade-type cutting mold opening machine, and the mold closing machine is a pressing mold closing machine. Both the mold opening and pressing machine and the mold closing machine are provided with a cover mold clamping gripper, and the number of clamping grippers of the cover mold clamping grippers of the mold opening and pressing machine and the mold closing machine is the same as the number of bottom mold seats in a row.

[0015] Beneficial effects:

[0016] By linking the material rack conveyor belt and the turntable through the feeder and the discharging machine, it is possible to take materials and load them on the rack in sequence, and at the same time, it can be linked with the material rack conveyor belt for displacement, thereby reducing the need for the feeder and the discharging machine to only rotate and clamp the mold with two axes. Therefore, it is only necessary to manually operate the rack in and out on one side of the automated color printing device to achieve fully automated color printing operations. In addition, such a design can greatly reduce the size and floor space of the color printing device, optimize the layout of the production workshop, and thus improve production efficiency.

[0017] By arranging all loading and unloading components on a square work surface, better automation can be achieved with a sufficiently small footprint, ensuring an overall economic and practical optimization ratio.

[0018] The rack translation belt can be used to continuously and slowly move the rack, and can also be linked with the turntable. After the feeder or discharging machine has taken and placed the mold once, the rack translation belt will slowly move the rack to the left, and move the empty space of the rack to below the rotation range of the feeder or discharging machine, so as to facilitate the subsequent taking and placing of the feeder or discharging machine.

[0019] The rack itself can conveniently classify contact lens molds of the same model, ensuring that individual molds can be placed in a stable and identical orientation, facilitating subsequent equipment operation, and also facilitating stacking, transportation and subsequent liquid injection operations.

[0020] By arranging a mold base on the turntable, efficient and automated production in a rotating cycle can be achieved. The mold base also includes a bottom mold base and a cover mold base. The bottom mold base is adjacent to the cover mold base, so that after the cover mold is opened and taken out, it is convenient to place it in a close position to facilitate subsequent re-closing.

[0021] The dual-axis feeder and discharging machine can reduce the number of mechanical parts required to move, facilitate the design of automated programs, improve operating efficiency, and can be easily linked with the material rack translation belt to achieve efficient linkage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view schematic diagram of the layout of an automated color printing device for discharging contact lens molds;

[0023] In the figure; 1. work table, 2. waiting area for printing, 3. material rack translation belt, 4. feeder, 5. die opening machine, 6. pad printing machine, 7. mold clamping machine, 8. discharger, 9. finishing area, 10. turntable, 11. mold base. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0025] Work table 1, waiting area for printing 2, material rack translation belt 3, feeder 4, die opening machine 5, pad printing machine 6, mold clamping machine 7, discharger 8, finishing area 9, turntable 10, mold base 11.

[0026] like Figure 1 As shown;

[0027] An automated color printing device for contact lens molds, the automated color printing device comprising a work surface 1, a mold opening and pressing machine 5, a pad printer 6, a mold clamping machine 7, a turntable 10 and a mold base 11, a turntable 10 is arranged above the work surface 1, a mold base 11 is arranged equidistantly on the surface of the turntable 10, an open mold pressing machine 5, a pad printer 6 and a mold clamping machine 7 are arranged equidistantly at the same angle between the outer side of the turntable 10 and the mold base 11, a material rack translation belt 3 is arranged horizontally and tangently on the rear side of the turntable 10, the upper surface of the material rack translation belt 3 is flush with the upper surface of the work surface 1, the material rack translation belt 3 is cyclically moved from right to left, and a to-be-printed area 2 is arranged on the rear side of the right end of the material rack translation belt 3, and a to-be-printed area 2 is arranged on the rear side of the left end of the material rack translation belt 3. A finishing area 9 is provided, a feeder 4 is provided at an adjacent position on the outside of the turntable 10 on the front side of the printing area 2, a die-opening press 5 is provided at an adjacent position of the feeder 4 on the clockwise turntable 10, a discharger 8 is provided at an adjacent position on the outside of the turntable 10 on the front side of the finishing area 9, a die-closing machine 7 is provided at an adjacent position of the discharger 8 on the clockwise turntable 10, a plurality of pad printers 6 are provided between the die-closing press 5 and the die-closing machine 7, the turntable 10 rotates clockwise, the worktable 1 is in the shape of a square table, the center of the worktable 1 is protruding and axially rotatable, and the upper surface of the worktable 1 is fixedly provided with a feeder 4, a die-opening press 5, a pad printer 6, and a die-closing machine 7 surrounding the outer side of the turntable 10. and a discharging machine 8, a material rack translation belt 3 is embedded in the surface of the work table 1, and the shape of the material rack translation belt 3 is a horizontal rectangular long conveyor belt, the length of the material rack translation belt 3 is greater than three times the length of the rack, the width of the material rack translation belt 3 is greater than the width of the rack, the rear sides of both ends of the material rack translation belt 3 are respectively flush with the to-be-printed area 2 and the completion area 9, and retaining edges are provided on both sides of the middle of the material rack translation belt 3, the shape of the rack is a rectangular long rack, and a plurality of assembly holes are equidistantly provided on the upper surface of the rack, and contact lens molds are placed in a nested manner from top to bottom inside the assembly holes, the turntable 10 is a circular servo angle rotating disk, and a plurality of mold seats 11 are equidistantly provided on the upper surface of the turntable 10, and the turntable 10 rotates clockwise The mold base 11 is an equidistant and independent grooved mold base 11 in two rows. The mold base 11 in one row is a bottom mold base 11, and the mold base 11 in the other row is a cover mold base 11. The bottom mold base 11 and the cover mold base 11 are parallel to each other, and the number of bottom mold bases 11 and the number of cover mold bases 11 are the same. The feeder 4 and the discharger 8 are both multiple clamping dual-axis mechanical arms, and the number of clamps of the feeder 4 and the discharger 8 is the same as the number of bottom mold bases 11 in one row. The mold opening and pressing machine 5 is a blade-type cutting mold opening machine, and the mold clamping machine 7 is a pressing mold clamping machine 7. The mold opening and pressing machine 5 and the mold clamping machine 7 are both provided with a cover mold clamping gripper, and the number of clamping grippers of the cover mold clamping grippers of the mold opening and pressing machine 5 and the mold clamping machine 7 is the same as the number of bottom mold bases 11 in one row.

[0028] Implementation examples;

[0029] When in use, it is only necessary to manually push the rack from the printing area 2 directly forward into the rack translation belt 3, and take the material through the cooperation of the feeder 4 and the rack translation belt 3, and put the mold into the bottom mold base 11 of the mold base 11 of the material tray. After the feeder 4 has taken the mold once, the rack translation belt 3 will slowly move the rack to the left to facilitate the subsequent material taking by the feeder 4.

[0030] Then the mold in the mold base 11 is rotated to the bottom of the mold opening and pressing machine 5 through the turntable 10, and the mold opening and pressing machine 5 takes out the cut cover mold of the mold, and at the same time places the cover mold in the cover mold base 11 adjacent to the bottom mold base 11, so as to facilitate the subsequent cover closing.

[0031] Then the turntable 10 continues to rotate to move the exposed bottom mold to the bottom of the pad printer 6 for pad printing. After pad printing is completed, the bottom mold continues to move to the bottom of the mold clamping machine 7. The mold clamping machine 7 takes out the cover mold and covers it with the bottom mold, and ensures it is firm by pressing.

[0032] Finally, the mold that has completed the mold closing is rotated to the bottom of the discharge machine 8, and the mold is placed in the empty rack through the discharge machine 8. When the discharge machine 8 completes one discharge, the rack translation belt 3 slowly moves the rack to the left to facilitate the subsequent discharge of the discharge machine 8. When the empty rack is full, it only needs to be manually taken out of the completion area 9.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated color printing device for contact lens molds, comprising a work surface, a mold opening and pressing machine, a pad printer, a mold clamping machine, a turntable and a mold base, a turntable is arranged above the work surface, a mold base is arranged annularly and equidistantly on the surface of the turntable, and a mold opening and pressing machine, a pad printer and a mold clamping machine are arranged equidistantly at the same angle between the outer side of the turntable and the mold base, characterized in that: A material rack translation belt is provided horizontally and tangently to the rear side of the turntable. The upper surface of the material rack translation belt is flush with the upper surface of the work table. The material rack translation belt moves in a cycle from right to left. A printing area is provided at the rear side of the right end of the material rack translation belt, and a finishing area is provided at the rear side of the left end of the material rack translation belt. A feeder is provided at an adjacent position on the outside of the turntable on the front side of the printing area. A die opening machine is provided at an adjacent position of the feeder on the turntable clockwise. A discharger is provided at an adjacent position on the outside of the turntable on the front side of the finishing area. A mold closing machine is provided at an adjacent position of the discharger on the turntable clockwise. A plurality of pad printing machines are provided between the mold opening machine and the mold closing machine. The turntable rotates clockwise.

2. The automatic color printing device for discharging contact lens molds according to claim 1, characterized in that: The work surface is in the shape of a square surface, with a turntable protruding from the center of the work surface and axially rotatable, and a feeder, a mold opening machine, a pad printing machine, a mold clamping machine and a discharger fixedly arranged around the outside of the turntable on the upper surface of the work surface, and a material rack translation belt embedded in the surface of the work surface.

3. The automatic color printing device for discharging contact lens molds according to claim 1, characterized in that: The shape of the material rack translation belt is a horizontal rectangular long conveyor belt. The length of the material rack translation belt is greater than three times the length of the rack, and the width of the material rack translation belt is greater than the width of the rack. The rear sides of both ends of the material rack translation belt are respectively flush with the to-be-printed area and the completion area, and guard edges are provided on both sides of the middle of the material rack translation belt.

4. The automatic color printing device for discharging contact lens molds according to claim 3, characterized in that: The rack is in the shape of a rectangular strip, and a plurality of assembling holes are equidistantly arranged on the upper surface of the rack. Contact lens molds are placed in a nested manner from top to bottom inside the assembling holes.

5. The automatic color printing device for discharging contact lens molds according to claim 1, characterized in that: The turntable is a circular servo angle rotating disk, and a plurality of mold seats are arranged in an annular manner and at equal intervals on the upper surface of the turntable. The turntable rotates in sections in a clockwise manner and at equal angles.

6. The automatic color printing device for discharging contact lens molds according to claim 1, characterized in that: The mold base is a two-row equidistant independent groove mold base, one row of mold bases is a bottom mold base, and the other row of mold bases is a cover mold base. The bottom mold base and the cover mold base are parallel to each other, and the number of the bottom mold base and the cover mold base is the same.

7. The automatic color printing device for discharging contact lens molds according to claim 6, characterized in that: The feeder and the discharging machine are both multiple clamping dual-axis mechanical arms, and the number of clamps of the feeder and the discharging machine is the same as the number of bottom mold bases in one row.

8. The automatic color printing device for discharging contact lens molds according to claim 6, characterized in that: The mold opening and pressing machine is a blade-type cutting mold opening machine, and the mold closing machine is a pressing mold closing machine. Both the mold opening and pressing machine and the mold closing machine are provided with cover mold clamping grabbers. The number of clamping grabbers of the cover molds of the mold opening and pressing machine and the mold closing machine is the same as the number of bottom mold seats in a row.

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