Dry contact lens transfer printing work station

Abstract

The utility model relates to the technical field of contact lens automatic production, in particular to a contact lens dry sheet transfer printing work station which comprises a transfer printing head assembly, a transfer printing lifting mechanism, a drawing board mechanism, a cleaning mechanism for cleaning the transfer printing head assembly and a dry sheet carrier. The transfer printing lifting mechanism drives the transfer printing head assembly to the cleaning mechanism, the cleaning mechanism cleans the execution end of the transfer printing head assembly, and the transfer printing lifting mechanism drives the transfer printing head assembly to the drawing board mechanism, so that the execution end of the transfer printing head assembly is in contact with the drawing board mechanism to obtain a pattern to be subjected to transfer printing; the transfer printing lifting mechanism drives the transfer printing head assembly to the dry sheet carrier, so that ink on the execution end of the transfer printing head assembly is printed on a dry sheet on the dry sheet carrier; according to the dry contact lens transfer printing work station, cleaning, ink coating and printing work can be completed in one work station, the dry contact lens can be printed according to needs in batches in a pattern printing mode, the structure is compact, the occupied space is small, and the transfer printing efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to contact lens automation production technical field, specifically is a kind of contact lens dry piece pad printing work station. BACKGROUND

[0002] In the production of color contact lenses, the conventional lens pattern printing is to print the pattern in the mold, and then form the liquid raw material in the mold to achieve the color printing effect. In the production process of contact lenses, the pre-process of hydration soaking is mold separation and piece taking, that is, the formed contact lens dry piece is taken out of the mold, and the dry piece is more stable in shape and size.

[0003] Dry piece color printing is a special contact lens manufacturing process. If the color printing is placed after mold separation and piece taking, all the production processes of the previous process are independent of the pattern style, and can be mass-produced according to the colorless transparent piece, which is convenient for production scheduling and saves production cost. After mold separation and piece taking, color printing is performed on the dry piece to print different patterns and colors, and different personalized beauty lens products are obtained.

[0004] However, the current related equipment mainly uses the execution end of the mechanical arm to perform pad printing operation, which requires the mechanical arm to hover at multiple stations, and the debugging and maintenance work of the equipment is heavy and the cost is high. It is not suitable for color printing operation on batch production dry pieces, so an integrated pad printing work station is needed to meet the demand. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of contact lens dry piece pad printing work station integrated cleaning, ink application and printing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A contact lens dry piece pad printing work station includes a pad printing head assembly, a pad printing lifting mechanism for driving the pad printing head assembly to lift, a pattern plate mechanism for providing the pad printing head assembly with a pad printing pattern, and a cleaning mechanism for cleaning the pad printing head assembly.

[0008] During operation, the pad printing lifting mechanism drives the pad printing head assembly to the cleaning mechanism, the cleaning mechanism cleans the execution end of the pad printing head assembly, and then the pad printing lifting mechanism drives the pad printing head assembly to the pattern plate mechanism, so that the execution end of the pad printing head assembly contacts the pattern plate mechanism to obtain the pattern to be printed. Then the pad printing lifting mechanism drives the pad printing head assembly to the dry piece carrier, so that the ink on the execution end of the pad printing head assembly is printed on the dry piece on the dry piece carrier.

[0009] Further, the pad printing lifting mechanism includes a lifting web for mounting the pad printing head assembly, and a pad printing lifting drive for driving the lifting web to move.

[0010] Further, the pad head assembly comprises a pad head, and a fine adjustment sliding table for adjusting the Y-axis installation position of the pad head, and an adjusting buckle for connecting with the lifting connecting plate is arranged at the upper adjusting end of the fine adjustment sliding table.

[0011] Further, the cleaning mechanism comprises a cleaning overturning driving device, a belt disc assembly, and a wiping driving device for driving the belt disc assembly to wipe the pad head assembly; the belt disc assembly and the wiping driving device are both mounted on a cleaning connecting plate, and the cleaning connecting plate is drivingly connected with the execution end of the cleaning overturning driving device.

[0012] During the cleaning operation, the cleaning overturning driving device drives the cleaning connecting plate to move the belt disc assembly to below the pad head assembly, and the pad lifting mechanism drives the pad head assembly to contact with the belt disc assembly, so that the cleaning and wiping are realized.

[0013] Further, the belt disc assembly comprises a cleaning belt disc and cleaning auxiliary rollers for tensioning the cleaning belt; the cleaning belt disc is fixed on the cleaning connecting plate, and the cleaning belt disc is connected with the output end of the wiping driving device; the cleaning auxiliary rollers are all mounted on a roller frame to tension and support the cleaning belt, and the pad head assembly contacts with the tensioned cleaning belt to realize the ink wiping; and the roller frame is connected with the cleaning connecting plate.

[0014] Further, the graphic plate mechanism comprises a printing plate body, a plate body driving device for driving the printing plate body to move, an ink box for coating ink, and a top box frame for supporting the ink box to slide against the printing plate body.

[0015] The printing plate body and the ink box always slide against each other; when the plate body driving device drives the printing plate body to move to the pad head assembly, the printing plate body and the ink box slide relatively, so that the ink is coated on the printing plate body, and the pad head assembly contacts with the printing plate body and dips the ink.

[0016] Further, the execution end of the plate body driving device is drivingly connected with a plate body fine adjustment frame for manually fine adjusting the position of the printing plate body.

[0017] Further, the pad lifting mechanism, the graphic plate mechanism and the cleaning mechanism are all mounted on the pad frame body, and the pad lifting mechanism is located above the dry plate carrier.

[0018] Compared with the prior art, the pad head assembly of the present application has the following beneficial effects:

[0019] In actual use, the pad printing lifting mechanism can adjust the height of the pad printing head assembly to meet the requirements of different heights for cleaning, ink dipping and printing actions in the dry sheet pad printing operation; the pad printing lifting mechanism can drive multiple pad printing head assemblies to the cleaning mechanism at the same time, and the cleaning mechanism can clean the execution end of the pad printing head assembly to avoid the influence of residual ink on the quality of the printing operation; the stencil mechanism is provided with pad printing pattern ink, the pad printing head assembly contacts and obtains the pattern ink; the pad printing lifting mechanism drives the pad printing head assembly with the to-be-printed pattern ink to the dry sheet carrier, drives the pad printing head assembly to contact the dry sheet on the dry sheet carrier, and prints the pattern ink on the dry sheet.

[0020] The contact lens dry sheet pad printing station completes cleaning, ink application and printing operations at one work station, can realize batch pattern printing of contact lens dry sheets on demand, has compact structure, occupies small space, and has high pad printing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 It is Figure 1 It is an enlarged schematic diagram of A in the middle;

[0023] Figure 3 It is a structure schematic diagram of the utility model;

[0024] Figure 4 It is a structure schematic diagram of another perspective of the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] Referring to Figures 1-4 As shown in the figure, a contact lens dry sheet pad printing station includes a pad printing head assembly 410, a pad printing lifting mechanism 430 for driving the pad printing head assembly 410 to lift, a stencil mechanism 440 for providing the pad printing head assembly 410 with pad printing patterns, and a cleaning mechanism 420 for cleaning the pad printing head assembly 410;

[0027] In operation, the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to the cleaning mechanism 420 to clean the execution end of the pad printing head assembly 410; the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to the stencil mechanism 440 to make the execution end of the pad printing head assembly 410 contact the stencil mechanism 440 to obtain the pattern to be printed; and the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to the dry plate carrier 800 to make the execution end of the pad printing head assembly 410 print the ink on the dry plate of the dry plate carrier 800.

[0028] In actual application, the pad printing lifting mechanism 430 can adjust the height of the pad printing head assembly 410 to meet the requirements of different heights in the cleaning, ink dipping, and printing actions in the dry plate pad printing operation; the pad printing lifting mechanism 430 can drive multiple pad printing head assemblies 410 to the cleaning mechanism 420 at the same time, and the cleaning mechanism 420 can clean the execution end of the pad printing head assembly 410 to avoid the influence of the remaining ink on the quality of the printing operation; the stencil mechanism 440 is provided with the pattern ink to be printed, the pad printing head assembly 410 contacts and obtains the pattern ink; the pad printing lifting mechanism 430 drives the pad printing head assembly 410 dipped with the pattern ink to be printed to the dry plate carrier 800, and drives the pad printing head assembly 410 to contact the dry plate on the dry plate carrier 800 to print the pattern ink on the dry plate.

[0029] The contact lens dry plate pad printing station can complete the cleaning, ink dipping, and printing operations in one station, can realize the batch printing of the pattern on the contact lens dry plate on demand, has a compact structure, occupies a small space, and has high pad printing efficiency.

[0030] In the embodiment, the pad printing lifting mechanism 430 includes a lifting connecting plate 432 for mounting the pad printing head assembly 410, and a pad printing lifting driving device 431 for driving the lifting connecting plate 432 to perform lifting movement; specifically, the pad printing lifting driving device 431 can be a linear motor, which can realize the lifting operation of the lifting connecting plate 432 with different height requirements; and the pad printing connecting plate 432 can be used to mount and assemble multiple pad printing head assemblies 410 on demand.

[0031] In the embodiment, the pad printing head assembly 410 comprises a pad printing rubber head 411, a fine adjustment sliding table 412 for adjusting the installation position of the pad printing rubber head 411 in the Y axis, and an adjusting buckle 413 arranged at the upper adjusting end of the fine adjustment sliding table 412 and used for connecting with the lifting connecting plate 432. Specifically, the fine adjustment sliding table 412 can be a micro sliding table which is manually or automatically adjusted, the pad printing rubber head 411 is installed at the lower adjusting end of the fine adjustment sliding table 412 to realize the fine adjustment of the installation position of the pad printing rubber head 411 in the Y axis, the adjusting buckle 413 is arranged at the upper adjusting end of the fine adjustment sliding table 412 and connected with the lifting connecting plate 432, the adjusting buckle 413 is provided with an assembly hole, the installation position of the fine adjustment sliding table 412 can be quickly adjusted by a bolt, the adjusting buckle 413 is provided with a fine adjustment scale for conveniently marking the offset position to realize the fine adjustment of the installation position of the pad printing rubber head 411 in the X axis and improve the adaptability.

[0032] In the embodiment, the cleaning mechanism 420 comprises a cleaning overturning driving device 421, a belt disc assembly 423, and a wiping driving device 422 for driving the belt disc assembly 423 to wipe the pad printing head assembly 410, the belt disc assembly 423 and the wiping driving device 422 are both installed on a cleaning connecting plate 424, the cleaning connecting plate 424 is drivingly connected with the execution end of the cleaning overturning driving device 421, when the cleaning action is performed, the cleaning overturning driving device 421 drives the cleaning connecting plate 424 to move the belt disc assembly 423 to below the pad printing head assembly 410, the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to contact with the belt disc assembly 423 to realize the cleaning and wiping.

[0033] Specifically, the cleaning overturning driving device 421 can be a rotary air cylinder for rotating the cleaning connecting plate 424, after the cleaning is completed, the cleaning overturning driving device 421 drives the belt disc assembly 423 to rotate back to avoid the collision of the pad printing head assembly 410 in the subsequent pad printing action, and the cleaning mechanism which can be rotated back is recycled to save the equipment space.

[0034] In the embodiment, the belt disc assembly 423 comprises a cleaning belt disc 4231 and cleaning auxiliary rollers 4233 for tensioning the cleaning belt, the cleaning belt disc 4231 is fixed on the cleaning connecting plate 424 and connected with the output end of the wiping driving device 422, the cleaning auxiliary rollers 4233 are all installed on a roller frame 4232 to tension and support the cleaning belt, the pad printing head assembly 410 contacts with the tensioned cleaning belt to realize the ink wiping, and the roller frame 4232 is connected with the cleaning connecting plate 424.

[0035] Specifically, the cleaning belt disc 4231 is provided with two, one for winding the cleaning belt of the pad printing head assembly 410, and the other for winding the cleaned cleaning belt; the wiping driving device 421 can adopt a rotary motor to drive one of the cleaning belt discs 4231 to rotate; the cleaning auxiliary rollers 4233 are used for tensioning and supporting the cleaning belt, so that the cleaning belt is fully rubbed with the execution end of the pad printing head assembly 410 to complete the cleaning of the ink on the pad printing head assembly 410.

[0036] In the embodiment, the graphic plate mechanism 440 comprises a printing plate body 443, a plate body driving device 441 driving the printing plate body 443 to move, an ink box 444 coating ink, and a top box frame 445 supporting the ink box 444 and the printing plate body 443 to slide against each other. The printing plate body 443 and the ink box 444 always slide against each other; when the plate body driving device 441 drives the printing plate body 443 to move to the pad printing head assembly 410, the printing plate body 443 and the ink box 444 slide against each other, so that the ink is coated on the printing plate body 443, and the pad printing head assembly 410 contacts the printing plate body 443 and dips ink.

[0037] Specifically, the printing plate body 443 can adopt a patterned steel plate, the top box frame 445 is used for installing the ink box 444, and the ink box 444 and the printing plate body 443 always abut against each other; the printing plate body 443 is driven by the plate body driving device 441 to move, so that the ink in the ink box 444 is coated on the printing plate body 443.

[0038] In the embodiment, the execution end of the plate body driving device 441 is drivingly connected with a plate body fine adjustment frame 442 for manually fine adjusting the position of the printing plate body 443. The pad printing lifting mechanism 430, the graphic plate mechanism 440 and the cleaning mechanism 420 are all installed on the pad printing frame body 450; the pad printing lifting mechanism 430 is located above the dry plate carrier 800.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace them, without deviating from the scope defined by the spirit of the present application.

Claims

1. A contact lens dry sheet pad printing station, characterized in that, The device comprises a pad printing head assembly (410), a pad printing lifting mechanism (430) for driving the pad printing head assembly (410) to lift, a plate mechanism (440) for providing the pad printing head assembly (410) with a pad printing pattern, and a cleaning mechanism (420) for cleaning the pad printing head assembly (410); During operation, the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to the cleaning mechanism (420), the cleaning mechanism (420) cleans the execution end of the pad printing head assembly (410), and then the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to the plate mechanism (440), so that the execution end of the pad printing head assembly (410) contacts the plate mechanism (440) to obtain the pad printing pattern; then the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to the dry plate carrier (800), so that the ink on the execution end of the pad printing head assembly (410) is printed on the dry plate of the dry plate carrier (800).

2. A contact lens dry patch stamping station according to claim 1, wherein, The pad printing lifting mechanism (430) comprises a lifting connecting plate (432) for mounting the pad printing head assembly (410), and a pad printing lifting drive (431) for driving the lifting connecting plate (432) to move.

3. A contact lens dry patch stamping station according to claim 2, wherein, The pad printing head assembly (410) comprises a pad printing rubber head (411), and a fine adjustment sliding table (412) for adjusting the Y-axis mounting position of the pad printing rubber head (411), wherein the fine adjustment sliding table (412) is provided with an adjusting buckle (413) for connecting with the lifting connecting plate (432).

4. A contact lens dry patch stamping station according to claim 1, wherein, The cleaning mechanism (420) comprises a cleaning overturning drive device (421), a belt disc assembly (423), and a wiping drive device (422) for driving the belt disc assembly (423) to wipe the pad printing head assembly (410); the belt disc assembly (423) and the wiping drive device (422) are both mounted on a cleaning connecting plate (424), and the cleaning connecting plate (424) is in driving connection with the execution end of the cleaning overturning drive device (421). During cleaning, the cleaning overturning drive device (421) drives the cleaning connecting plate (424) to move the belt disc assembly (423) below the pad printing head assembly (410), and the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to contact the belt disc assembly (423) to realize cleaning wiping.

5. A contact lens dry patch stamping station according to claim 4, wherein, The belt disc assembly (423) comprises a cleaning belt disc (4231) and a cleaning auxiliary roller (4233) for tensioning the cleaning belt; the cleaning belt disc (4231) is fixed on the cleaning connecting plate (424), and the cleaning belt disc (4231) is connected with the output end of the wiping drive device (422); a plurality of cleaning auxiliary rollers (4233) are all mounted on a roller frame (4232) to tension and support the cleaning belt, the pad printing head assembly (410) contacts the tensioned cleaning belt to realize ink wiping; and the roller frame (4232) is connected with the cleaning connecting plate (424).

6. A contact lens dry patch stamping station according to claim 1, wherein, The graphic plate mechanism (440) comprises a plate body (443), a plate body driving device (441) for driving the plate body (443) to move, an ink box (444) for coating ink, and a top box frame (445) for supporting the ink box (444) and slidingly abutting the plate body (443); The plate body (443) and the ink box (444) are always in sliding abutment; when the plate body driving device (441) drives the plate body (443) to move to the position of the pad printing head assembly (410), the plate body (443) and the ink box (444) slide relatively, so that the ink is coated on the plate body (443), and the pad printing head assembly (410) contacts the plate body (443) and dips the ink.

7. A contact lens dry patch stamping station according to claim 6, wherein, The execution end of the plate body driving device (441) is drivingly connected with a plate body fine adjustment frame (442) for manually fine adjusting the position of the plate body (443).

8. A contact lens dry transfer printing station according to claim 1, wherein, The pad printing lifting mechanism (430), the graphic plate mechanism (440), and the cleaning mechanism (420) are all mounted on a pad printing frame body (450); and the pad printing lifting mechanism (430) is located above the dry plate carrier (800).

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