Full-automatic positioning, detecting and transfer printing equipment for contact lenses

Abstract

The utility model relates to the field of contact lens manufacturing, in particular to full-automatic positioning, detecting and pad printing equipment for contact lenses, which comprises a transmission component, and a feeding component, a surface treatment component, a pad printing component, a detecting component and a discharging component are sequentially arranged on a transmission path of the transmission component. The conveying assembly conveys the first carrier plate to move to the feeding assembly, the surface treatment assembly, the transfer printing assembly, the detection assembly and the discharging assembly in sequence. Full-automatic feeding, pad printing, detecting and discharging procedures are adopted, manual participation is avoided in the whole process, the automation degree is high, and the production efficiency is greatly improved; and through visual detection, instability of manual detection is avoided, defective products are marked in time, and rejection of subsequent procedures is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of contact lens manufacturing, and particularly relates to a fully automatic positioning detection pad printing device for contact lenses. Background Art

[0002] In the production and manufacturing process of colored contact lenses or other contact lenses with specific pattern requirements, the required patterns need to be pad printed onto the lenses. When pad printing, first, the ink is pad printed onto the mold, and multiple layers of ink are formed into patterns on the mold through multiple pad printings; then, when the contact lens is formed, it is printed on the contact lens.

[0003] In the prior art, the pad printing of contact lenses is usually a semi-automatic device. After printing the color on the mold, defective products are removed through manual off-line detection. However, this method is not conducive to production control because manual detection is subjective and time-consuming, and the detection results highly depend on the mood, experience, and fatigue of workers, which will cause the instability and non-quantifiability of the detection results. Therefore, how to improve the pad printing efficiency of contact lenses is a problem that those skilled in the art need to consider. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fully automatic positioning detection pad printing device for contact lenses to solve the problems such as low pad printing efficiency of contact lenses in the prior art.

[0005] The technical solution of the utility model is: a fully automatic positioning detection pad printing device for contact lenses, including a transmission component. An upper feeding component, a surface treatment component, a pad printing component, a detection component, and a discharging component are sequentially arranged on the transmission path of the transmission component; the transmission component transmits a first carrier plate and moves it to the upper feeding component, the surface treatment component, the pad printing component, the detection component, and the discharging component in sequence;

[0006] The transmission component includes a first transmission line and a second transmission line that are parallel and of equal length to each other, and a connection component; both the first transmission line and the second transmission line are composed of a plurality of transmission segments connected in combination; the connection component includes a first transmission module and a connection segment connected to the first transmission module. The first transmission module can drive the connection segment to move in a direction perpendicular to the first transmission line and the second transmission line, and is connected to the first transmission line or the second transmission line; the first carrier plate can move on the transmission segment and the connection segment.

[0007] Preferably, the feeding component includes a first bin, a first lifting component, a first transfer device, a second transfer device, and a third transfer device. The first lifting component is arranged at the bottom end of the first bin and can lift the mold in the first bin upward; the first transfer device is arranged above the first bin and can pick up the mold in the first bin and transfer it to the second transfer device; the transmission direction of the second transfer device is vertical, and a second carrier plate is connected thereto. The second carrier plate can receive the mold transferred by the first transfer device and transmit it downward; when the second carrier plate carries the mold and transports it to the lower end, the third transfer device picks up the mold on the second carrier plate and transfers it to the first carrier plate.

[0008] Preferably, the surface treatment component includes a fourth transfer device, a fifth transfer device, and an electrophoresis device. A third carrier plate is connected to the fifth transfer device; the fourth transfer device can pick up the mold on the first carrier plate and transfer it to the third carrier plate; the third carrier plate carries the mold and moves to directly below the electrophoresis device under the drive of the fifth transfer device, and the surface treatment of the mold is completed by the electrophoresis device.

[0009] Preferably, the pad printing component includes a pad printing device and an ink scraping device. The pad printing device includes a sixth transfer device and a rubber head connected to the sixth transfer device; the ink scraping device includes an ink tank and an ink plate. The ink tank can slide on the ink plate and leave the ink in the ink tank on the ink plate; the sixth transfer device can drive the rubber head to press against the ink plate and the mold on the first carrier plate in sequence, and transfer the ink on the ink plate to the mold.

[0010] Preferably, a plurality of pad printing components are arranged in parallel.

[0011] Preferably, the detection component includes a ninth transfer device and a curing device connected to the ninth transfer device. The ninth transfer device drives the curing device to directly above the first carrier plate to complete the curing of the ink in the mold;

[0012] The detection component includes a detection camera. The detection camera is arranged directly above the first carrier plate; after the curing device completes the curing of the ink, the ninth transfer device drives the curing device to reset, and the detection camera completes the detection of the mold.

[0013] Preferably, the discharging component includes a second bin, a second lifting component, a seventh transfer device, an eighth transfer device, and a tenth transfer device. A fourth carrier plate is connected to the eighth transfer device, and the eighth transfer device can drive the fourth carrier plate to move in the vertical direction; the seventh transfer device can pick up the mold on the first carrier plate and transfer it to the fourth carrier plate; when the fourth carrier plate carries the mold and runs to the upper end, the tenth transfer device picks up the mold on the fourth carrier plate and transfers it into the bin.

[0014] The second lifting component can drive the mold in the silo to move downward.

[0015] Preferably, the feeding component, the surface treatment component, the detection component and the discharging component are all arranged on the conveying path of the first conveyor line; a plurality of the pad printing components are arranged on the conveying path of the second conveyor line, and the conveying directions of the first conveyor line and the second conveyor line are opposite.

[0016] Preferably, a cleaning device is arranged between the feeding component and the surface treatment component, and the cleaning device is arranged on the conveying path of the first conveyor line.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] (1) In the present utility model, the fully automatic processes of feeding, pad printing, detection and discharging are adopted, and there is no manual participation throughout the process, with high automation degree, which greatly improves the production efficiency; through visual inspection, the instability of manual inspection is avoided, and defective products are marked in time, which is convenient for rejection in subsequent processes;

[0019] A plurality of pad printing components are sequentially arranged on the conveyor line, and different numbers of pad printing components can be turned on according to different production needs, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below with reference to the drawings and embodiments:

[0021] Figure 1 It is a schematic structural diagram of the fully automatic positioning detection pad printing equipment for contact lenses according to the present utility model;

[0022] Figure 2 It is a top view structural diagram of the fully automatic positioning detection pad printing equipment for contact lenses according to the present utility model;

[0023] Figure 3 It is a schematic structural diagram of the transmission component according to the present utility model;

[0024] Figure 4 It is a schematic structural diagram of the feeding component according to the present utility model Figure 1 ;

[0025] Figure 5 It is a schematic structural diagram of the feeding component according to the present utility model Figure 2 ;

[0026] Figure 6 It is a schematic structural diagram of the surface treatment component according to the present utility model Figure 1 ;

[0027] Figure 7 It is a schematic structural diagram of the surface treatment component according to the present utility model Figure 2 ;

[0028] Figure 8 It is a structural schematic diagram of the pad printing assembly of the utility model;

[0029] Figure 9 It is a structural schematic diagram of the detection component of the utility model;

[0030] Figure 10 It is a structural schematic diagram of the blanking assembly described in the utility model.

[0031] Wherein: a transmission component 1, a first transmission line 11, a transmission section 111, a second transmission line 12, a docking component 13, a first transmission module 131, a docking section 132, and a first carrier 14;

[0032] Feeding assembly 2, first silo 21, barrel 211, first lifting assembly 22, first transfer device 23, second transfer device 24, second carrier plate 241, third transfer device 25;

[0033] Surface treatment assembly 3, fourth transfer device 31, fifth transfer device 32, third carrier plate 321, electrophoresis device 33;

[0034] Pad printing assembly 4, pad printing device 41, sixth transfer device 411, rubber head 412, ink scraping device 42, ink tank 421, ink plate 422;

[0035] Detection component 5, ninth transfer device 51, curing device 52, detection camera 53;

[0036] A material unloading assembly 6, a second material bin 61, a second lifting assembly 62, a seventh transfer device 63, an eighth transfer device 64, and a tenth transfer device 65;

[0037] Cleaning device 7. DETAILED DESCRIPTION

[0038] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0039] like Figures 1 - 10As shown in the figure, the utility model is applied to the printing of patterns in the manufacturing process of contact lenses. First, an ink layer, a transparent layer, etc. are printed on the mold of the contact lens multiple times respectively to form a pattern; when the contact lens is formed, the pattern is incorporated into the lens of the contact lens. In the utility model, the feeding component realizes the feeding of the mold of the contact lens; the surface treatment component treats the surface of the mold by electrophoresis, making the surface of the mold rougher and facilitating the adhesion of the ink; the pad printing component realizes the printing of the ink on the mold, and multiple pad printing components can be arranged to print different ink layers and jointly form a pattern; the detection component completes the curing and detection of the ink on the contact lens mold; the discharging component realizes the discharging of the mold, so that the mold is rearranged and placed in the magazine for subsequent operations; the transmission component sequentially transports the mold from the feeding component to the surface treatment component, the pad printing component, the detection component, and the discharging component, and performs corresponding operations.

[0040] Specifically: The transmission component 1 includes a first transmission line 11 and a second transmission line 12 that are parallel and of equal length to each other, and a connection component 13. Both the first transmission line 11 and the second transmission line 12 are composed of a plurality of transmission segments 111 connected in combination, and the transmission directions are opposite. The feeding component 2, the surface treatment component 3, the detection component 5, and the discharging component 6 are all arranged on the transmission path of the first transmission line 11; a plurality of pad printing components 4 are arranged on the transmission path of the second transmission line 12.

[0041] The connection component 13 includes a first transmission module 131 and a connection segment 132 connected to the first transmission module 131. The first transmission module 131 can drive the connection segment 132 to move in a direction perpendicular to the first transmission line 11 and the second transmission line 12, and is connected to the first transmission line 11 or the second transmission line 12; the first carrier plate 14 can move on the transmission segment 111 and the connection segment 132. In this embodiment, the first carrier plate 14 receives the mold at the feeding component 2 and is transported to the surface treatment component 3 under the drive of the first transmission line 11; after the surface treatment is completed, it moves to the connection segment 132 under the drive of the first transmission line 11; the connection segment 132 moves to the second transmission line 12 under the drive of the first transmission module 131 and is connected to the second transmission line 12; under the drive of the second transmission line 12, the first carrier plate 14 is sequentially moved to a plurality of pad printing components 4 to complete the printing of the ink; then the first carrier plate 14 is transported to the connection segment 132 at the other end of the first transmission line 11 and the second transmission line 12, and then the first transmission module 131 drives the connection segment 132 to move to the first transmission line 11, and then moves to the detection component 5 under the drive of the first transmission line 11 to realize the curing and detection of the ink; then it is transported to the discharging component 6 to realize the discharging of the mold.

[0042] The loading assembly 2 includes a first silo 21, a first lifting assembly 22, a first transfer device 23, a second transfer device 24 and a third transfer device 25. The first lifting assembly 22 is arranged at the bottom of the first silo 21 and can lift the mold in the first silo 21 to move upward; the first transfer device 23 is arranged above the first silo 21 and can pick up the mold in the first silo 21 and transfer it to the second transfer device 24; the transmission direction of the second transfer device 24 is the vertical direction, and is connected to a second carrier 241, which can receive the mold transmitted by the first transfer device 23 and transmit it downward; when the second carrier 241 carries the mold and transports it to the downstream end, the third transfer device 25 picks up the mold on the second carrier 241 and transfers it to the first carrier 14. In this embodiment, the mold of the contact lens is stacked in a tubular barrel 211, and multiple barrels 211 can be placed in the first silo 21 at the same time. The first lifting assembly 22 is provided with a plurality of ejector rods (not shown in the figure). When the barrel 211 is placed in the silo, the ejector rods pass through the barrel and press against the lower end surface of the mold at the lowest end in the barrel. Each time the first transfer device 23 removes a mold, the first lifting assembly 22 is lifted upward by a fixed height, so that the mold at the upper end of the barrel is always in the same plane, so as to facilitate the picking up of the first transfer device 23. Two groups of barrels can be placed when placing them. When the molds in one group are taken out, it can be directly switched to pick up the molds in the other group. The operator can replace the empty barrel to achieve non-stop operation and improve production efficiency.

[0043] The first transfer device 23, the second transfer device 24 and the third transfer device 25 are all provided with corresponding suction cups, driving cylinders and / or linear modules to ensure that the mold can be picked up and the position of the mold can be moved. This is the prior art and will not be described in detail in this embodiment.

[0044] The surface treatment assembly 3 includes a fourth transfer device 31, a fifth transfer device 32 and an electrophoresis device 33, and the fifth transfer device 32 is connected to a third carrier 321; the fourth transfer device 31 can pick up the mold on the first carrier 14 and transfer it to the third carrier 321; the third carrier 321 carries the mold and moves to the bottom of the electrophoresis device 33 under the drive of the fifth transfer device 32, and the surface treatment of the mold is completed by the electrophoresis device 33. In this embodiment, a cleaning device 7 is provided between the loading assembly 2 and the surface treatment assembly 3. When the first conveying line 11 conveys the first carrier 14 and the mold on the first carrier 14 through the cleaning device 7, the cleaning device 7 can vacuum the mold to ensure the cleanliness of the mold surface.

[0045] When the first carrier plate 14 moves to the surface treatment component 3 driven by the first conveyor line 11, the fourth transfer device 31 picks up the mold on the first carrier plate 14 and transfers it to the third carrier plate 321. The electrophoresis device 33 moves downward under the drive of the fifth transfer device 32 and discharges against the surface of the mold to complete the surface treatment of the mold, so as to increase the roughness of the mold surface, making the ink fit more closely to the mold surface during subsequent pad printing.

[0046] The pad printing component 4 includes a pad printing device 41 and an ink scraping device 42. The pad printing device 41 includes a sixth transfer device 411 and a rubber head 412 connected to the sixth transfer device 411; the ink scraping device 42 includes an ink tank 421 and an ink plate 422. The ink tank 421 can slide on the ink plate 422 and leave the ink in the ink tank 421 on the ink plate 422; the sixth transfer device 411 can drive the rubber head 412 to press against the ink plate 422 and the mold on the first carrier plate 14 in sequence, and transfer the ink on the ink plate 422 to the mold. In this embodiment, multiple pad printing components 4 can be arranged in parallel to print multiple layers of ink on the mold to meet different printing requirements. Each time the rubber head 412 touches the ink plate 422, the ink tank scrapes the ink plate 422 once to ensure that there is enough ink on the ink plate 422 for the next pad printing of the rubber head 412. The rubber head 412 can be set to one, or two or more can be set simultaneously to pad print multiple molds at one time.

[0047] The detection component 5 includes a ninth transfer device 51 and a curing device 52 connected to the ninth transfer device 51. The ninth transfer device 51 drives the curing device 52 to directly above the first carrier plate 14 to complete the curing of the ink in the mold;

[0048] The detection component 5 includes a detection camera 53, and the detection camera 53 is arranged directly above the first carrier plate 14; after the curing device 52 completes the curing of the ink, the ninth transfer device 51 drives the curing device 52 to reset, and the detection camera 53 completes the detection of the mold. In this embodiment, the curing device 52 can use UV curing, and the detection camera 53 is arranged above the curing device 52. When the first carrier plate 14 moves to the detection component 5, the ninth transfer device 51 drives the curing device 52 to directly above the first carrier plate 14, cures the ink on the mold and then resets; at this time, the detection camera 53 detects the mold after the ink is cured. The defective products after detection are not taken out, but the corresponding positions of the defective products need to be determined and taken out in subsequent production. Of course, in other preferred embodiments, a defective product removal station can be arranged after the detection component 5 to directly remove the defective products.

[0049] The blanking assembly 6 includes a second bin 61, a second lifting assembly 62, a seventh transfer device 63, an eighth transfer device 64, and a tenth transfer device 65. A fourth carrier plate (not shown in the figure) is connected to the eighth transfer device 64, and the eighth transfer device 64 can drive the fourth carrier plate to move in the vertical direction; the seventh transfer device 63 can pick up the mold on the first carrier plate 14 and transfer it to the fourth carrier plate; when the fourth carrier plate carries the mold and runs to the upper end, the tenth transfer device 65 picks up the mold on the fourth carrier plate and transfers it into the bin; the second lifting assembly 62 can drive the mold in the bin to move downward. In this embodiment, the structures of the feeding assembly 2 and the blanking assembly 6 are basically the same, and the movement modes and processes are opposite, so they will not be specifically described here.

[0050] The above embodiments are only for illustrating the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

Claims

1. An automatic positioning, detecting and pad printing device for contact lenses, characterized in that, It includes a transmission component, and a loading component, a surface treatment component, a pad printing component, an inspection component and a unloading component are sequentially arranged on the transmission path of the transmission component; the transmission component transports the first carrier plate and moves it to the loading component, the surface treatment component, the pad printing component, the inspection component and the unloading component in sequence; The transmission component includes a first transmission line and a second transmission line that are parallel and of equal length to each other, and a connection component; both the first transmission line and the second transmission line are combined and connected by a plurality of transmission segments; the connection component includes a first transmission module and a connection segment connected to the first transmission module, the first transmission module can drive the connection segment to move in a direction perpendicular to the first transmission line and the second transmission line, and is connected to the first transmission line or the second transmission line; the first carrier plate can move on the transmission segment and the connection segment.

2. The fully automatic positioning detection and pad printing device for contact lenses according to claim 1, characterized in that: The loading component includes a first material bin, a first lifting component, a first transfer device, a second transfer device and a third transfer device. The first lifting component is arranged at the bottom end of the first material bin and can lift the mold in the first material bin upward; the first transfer device is arranged above the first material bin and can pick up the mold in the first material bin and transfer it to the second transfer device; the transmission direction of the second transfer device is the vertical direction, and it is connected with a second carrier plate, and the second carrier plate can receive the mold transferred by the first transfer device and transport it downward; when the second carrier plate carries the mold and transports it to the lower end, the third transfer device picks up the mold on the second carrier plate and transfers it to the first carrier plate.

3. The fully automatic positioning, detecting and pad printing device for contact lenses according to claim 2, wherein: The surface treatment component includes a fourth transfer device, a fifth transfer device and an electrophoresis device; a third carrier plate is connected to the fifth transfer device; the fourth transfer device can pick up the mold on the first carrier plate and transfer it to the third carrier plate; the third carrier plate carries the mold and moves to directly below the electrophoresis device under the drive of the fifth transfer device, and the surface treatment of the mold is completed through the electrophoresis device.

4. A fully automatic positioning, detecting and pad printing device for contact lenses according to claim 3, characterized in that: The pad printing component includes a pad printing device and a doctor blade device. The pad printing device includes a sixth transfer device and a rubber head connected to the sixth transfer device; the doctor blade device includes an ink trough and an ink plate, and the ink trough can slide on the ink plate and leave the ink in the ink trough on the ink plate; the sixth transfer device can drive the rubber head to press against the ink plate and the mold on the first carrier plate in sequence, and transfer the ink on the ink plate to the mold.

5. A fully automatic positioning, detecting and pad printing device for contact lenses according to claim 4, characterized in that: A plurality of the pad printing components are arranged in parallel.

6. An automatic positioning detection and pad printing device for contact lenses according to claim 5, characterized in that: The inspection component includes a ninth transfer device and a curing device connected to the ninth transfer device. The ninth transfer device drives the curing device to directly above the first carrier plate to complete the curing of the ink in the mold; The inspection component includes an inspection camera, and the inspection camera is arranged directly above the first carrier plate; After the curing device completes the curing of the ink, the ninth transfer device drives the curing device to reset, and the inspection camera completes the inspection of the mold.

7. An automatic positioning detection and pad printing device for contact lenses according to claim 6, characterized in that: The blanking component includes a second bin, a second lifting component, a seventh transfer device, an eighth transfer device, and a tenth transfer device. A fourth carrier plate is connected to the eighth transfer device, and the eighth transfer device can drive the fourth carrier plate to move in the vertical direction. The seventh transfer device can pick up the mold on the first carrier plate and transfer it to the fourth carrier plate. When the fourth carrier plate carries the mold and runs to the upper end, the tenth transfer device picks up the mold on the fourth carrier plate and transfers it into the bin. The second lifting component can drive the mold in the bin to move downward.

8. An automatic positioning detection and pad printing device for contact lenses according to claim 7, characterized in that: The loading component, the surface treatment component, the detection component, and the blanking component are all arranged on the conveying path of the first conveyor line. A plurality of pad printing components are arranged on the conveying path of the second conveyor line, and the conveying directions of the first conveyor line and the second conveyor line are opposite.

9. An automatic positioning, detecting and pad printing device for contact lenses according to claim 8, characterized in that: A cleaning device is arranged between the loading component and the surface treatment component, and the cleaning device is arranged on the conveying path of the first conveyor line.

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