A feeding mechanism for a contact lens printing machine

Abstract

This utility model relates to a feeding mechanism for a contact lens printing machine, belonging to the field of contact lens processing technology. It includes a mold, with a printing plate on the upper side of the mold, and a mounting plate on the upper side of the printing plate. A printing head is fixedly connected to the bottom of the mounting plate. Multiple positioning grooves are formed on the inner side of the mold. Adsorption components are provided on both the left and right sides of the mold. Each adsorption component includes a fixing frame and a mounting block. An iron block is fixedly connected to the upper side of the mounting block. An electromagnet is fixedly installed on the side of the fixing frame near the iron block. A pressure sensor is also fixedly installed on the outer wall of the fixing frame. A pressing component corresponding to the pressure sensor is provided on the lower side of the mounting plate. The pressing component includes a connecting rod. This feeding mechanism for a contact lens printing machine facilitates the rapid transfer of printed contact lenses, greatly improving the production efficiency of contact lenses and demonstrating good practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of contact lens processing, in particular to a contact lens color printing machine feeding mechanism. Background Art

[0002] Contact lenses, also called corneal contact lenses, are lenses worn on the cornea of ​​the eyeball to correct vision or protect the eyes. According to the hardness of the material, they include hard, semi-hard, and soft. Contact lenses not only greatly improve the appearance and convenience of patients with refractive errors such as myopia, hyperopia, and astigmatism, but also provide a wide field of vision and realistic vision. In addition, they also play a special role in controlling the development of myopia and astigmatism in adolescents and treating special eye diseases. The lenses need to be processed using a color printer.

[0003] After searching, the prior art publication number CN216069195U discloses a contact lens color printer feeding device, including a mold base, a transfer fixing plate, a pad printing plate and a positioning plate. The contact lens color printer feeding device has a first clamping arm fixedly connected to a first soft rubber plate on one side, a second groove is provided on the other side of the clamping arm base, a second clamping arm is rotatably connected to the second groove through a rotating shaft, and a second soft rubber plate is fixedly connected to one side of the second clamping arm. Most of the existing contact lens color printers lack protection for the mold when clamping the mold, and are prone to damage to the outer wall of the mold under continuous high-speed operation. In addition, the existing color printers cannot print contact lenses of multiple colors at the same time, and the colors are relatively single during printing. When the printing pattern needs to be changed, the pad printing plate needs to be replaced as a whole. The two sets of clamping arms of the color printer are designed with soft rubber plates, which can reduce damage to the mold when clamping the mold.

[0004] However, the above device is not convenient for quickly transporting the printed lenses after printing, which causes inconvenience to the subsequent processing steps and reduces the production efficiency of contact lenses. Therefore, a contact lens color printer feeding mechanism is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a feeding mechanism for a contact lens color printer, which has the advantages of being easy and quick to transport, and solves the problem that the feeding device of the prior contact lens color printer is not convenient for quickly transporting the printed lenses after printing, causing inconvenience to subsequent processing steps and reducing the production efficiency of contact lenses.

[0006] To achieve the above object, the utility model provides the following technical solutions: a contact lens color printer feeding mechanism, comprising a mold, a pad printing plate is arranged on the upper side of the mold, a mounting plate is arranged on the upper side of the pad printing plate, a pad printing head is fixedly connected to the bottom of the mounting plate, a plurality of positioning grooves are opened on the inner side of the mold, and adsorption components are arranged on both the left and right sides of the mold;

[0007] The adsorption assembly includes a fixing frame and a mounting block, an iron block is fixedly connected to the upper side of the mounting block, an electromagnet is fixedly mounted on a side of the fixing frame close to the iron block, and a pressure sensor is also fixedly mounted on the outer wall of the fixing frame;

[0008] An extrusion assembly corresponding to the pressure sensor is arranged on the lower side of the mounting plate;

[0009] The extrusion assembly comprises a connecting rod, a sleeve is sleeved on the outer side of the connecting rod, a contact is fixedly connected to the lower end of the sleeve, and a spring is arranged inside the sleeve.

[0010] Furthermore, a belt conveyor is provided on the lower side of the mold.

[0011] Furthermore, a plurality of printing plates are slidably mounted on the upper portion of the pad printing plate, and a partition is provided between every two adjacent printing plates, and the partition is fixedly connected to the pad printing plate.

[0012] Furthermore, the mounting block is fixedly connected to the side of the mold, and the pressure sensor is located directly below the contact.

[0013] Furthermore, a buffer pad is fixedly connected to the inner wall of the positioning groove, and the buffer pad is made of silicone.

[0014] Furthermore, the upper end of the connecting rod is fixedly connected to the bottom of the mounting plate, the upper end of the spring is fixedly connected to the lower end of the connecting rod, and the lower end of the spring is fixedly connected to the inner bottom wall of the sleeve.

[0015] Furthermore, the number of the pad printing head, the printing plate and the positioning grooves in the single mold is set equal.

[0016] Compared with the prior art, the utility model provides a contact lens color printing machine feeding mechanism, which has the following beneficial effects:

[0017] 1. The feeding mechanism of the contact lens printing machine generates magnetic adsorption on the iron block through the electromagnet, which is convenient for adsorbing and fixing the mold. When the pad printing head prints the contact lens in the mold, the contact on the mounting plate contacts the pressure sensor on the fixing frame, so that the pressure sensor sends a signal to the main controller, so that the main controller controls the electromagnet to cut off the power, thereby releasing the adsorption of the iron block, so that the mold falls onto the belt conveyor below, and the belt conveyor can transport the printed contact lens to the next process, which is convenient for the rapid transportation of the printed contact lens, greatly improves the production efficiency of the contact lens, and has good practicality.

[0018] 2. The contact lens printing machine feeding mechanism facilitates the placement of contact lenses through multiple positioning grooves on the inner side of the mold, which facilitates positioning and avoids displacement of the lenses during printing. The buffer pads in the positioning grooves can provide buffer protection for the contact lenses, thereby improving the protective performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure between the mold and the fixing frame of the utility model;

[0021] Figure 3 This is a structural sectional view of the sleeve of the utility model;

[0022] Figure 4 It is a structural stereogram of the mold of the utility model.

[0023] In the figure: 1. mold; 2. pad; 3. mounting plate; 4. pad head; 5. printing plate; 6. partition; 7. belt conveyor; 8. fixing frame; 9. positioning groove; 10. buffer pad; 11. mounting block; 12. iron block; 13. electromagnet; 14. pressure sensor; 15. connecting rod; 16. sleeve; 17. contact; 18. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4A contact lens color printer feeding mechanism in this embodiment includes a mold 1, a pad 2 is arranged on the upper side of the mold 1, a mounting plate 3 is arranged on the upper side of the pad 2, a pad head 4 is fixedly connected to the bottom of the mounting plate 3, and a plurality of positioning grooves 9 are opened on the inner side of the mold 1. The positioning grooves 9 can be convenient for placing contact lenses, which facilitates positioning and avoids displacement of the lenses during color printing. Among them, a buffer pad 10 is fixedly connected to the inner wall of the positioning groove 9. The buffer pad 10 is made of silicone. The buffer pad 10 can play a buffering and protective role on the contact lenses, thereby improving the protective performance.

[0026] In this embodiment, a plurality of printing plates 5 are slidably mounted on the upper portion of the printing plate 2 , and a partition plate 6 is disposed between every two adjacent printing plates 5 , and the partition plate 6 is fixedly connected to the printing plate 2 .

[0027] In this embodiment, adsorption components are provided on both sides of the mold 1, and the adsorption components include a fixing frame 8 and a mounting block 11. The mounting block 11 is fixedly connected to the side of the mold 1, and an iron block 12 is fixedly connected to the upper side of the mounting block 11. An electromagnet 13 is fixedly installed on the side of the fixing frame 8 close to the iron block 12. A pressure sensor 14 is also fixedly installed on the outer wall of the fixing frame 8. The pressure sensor 14 is located directly below the contact 17. The electromagnet 13 is used to facilitate magnetic adsorption of the iron block 12, which facilitates the fixation of the mold 1. When the contact 17 squeezes the pressure sensor 14 downward, the pressure sensor 14 sends a signal to the main controller, so that the main controller controls the electromagnet 13 to cut off the power. The main controller is a conventional known device, and the main controller, the electromagnet 13 and the pressure sensor 14 are connected using existing publicly available power connection technology.

[0028] In this embodiment, an extrusion assembly corresponding to the pressure sensor 14 is provided on the lower side of the mounting plate 3, and the extrusion assembly includes a connecting rod 15, a sleeve 16 is sleeved on the outer side of the connecting rod 15, a contact 17 is fixedly connected to the lower end of the sleeve 16, and a spring 18 is provided inside the sleeve 16, wherein the upper end of the connecting rod 15 is fixedly connected to the bottom of the mounting plate 3, the upper end of the spring 18 is fixedly connected to the lower end of the connecting rod 15, and the lower end of the spring 18 is fixedly connected to the inner bottom wall of the sleeve 16.

[0029] In this embodiment, a belt conveyor 7 is provided at the lower side of the mold 1 to facilitate material feeding.

[0030] It should be noted that the mold 1 can be mass-produced in several groups, and the number of the pad printing head 4, the printing plate 5 and the positioning grooves 9 in a single mold 1 are set equal to facilitate matching use.

[0031] The working principle of the above embodiment is:

[0032] When the utility model is in use, the pad printing plate 2 and the mounting plate 3 are both installed on the same color printing machine, the rear side of the pad printing plate 2 is connected to the output cylinder on the color printing machine, and the pad printing plate 2 can be controlled to move forward and backward, the upper side of the mounting plate 3 is connected to another output cylinder on the color printing machine, and the mounting plate 3 can be controlled to move up and down, the fixing frame 8 is installed above the belt conveyor 7, the contact lens is positioned through the positioning groove 9 in the mold 1, the mold 1 filled with contact lens is placed under the two fixing frames 8, and the iron block 12 is magnetically adsorbed by the electromagnet 13, so that the mold 1 is adsorbed and fixed, the mounting plate 3 moves downward, drives the pad printing head 4 to dip the color on the printing plate 5 and then resets upward, and then the pad printing plate 2 moves backward, and is separated from between the mounting plate 3 and the mold 1, so that the pad printing head 4 and the The mounting plate 3 moves downward to drive the pad printing head 4 to contact the contact lens in the mold 1, thereby completing the printing. When the mounting plate 3 moves during this period, the contact 17 on the mounting plate 3 will contact the pressure sensor 14 on the fixing frame 8. As the pad printing head 4 contacts the contact lens, the sleeve 16 above the contact 17 squeezes the spring 18 on the connecting rod 15. The spring 18 applies a certain pressure to the pressure sensor 14 through the sleeve 16 and the contact 17, so that the pressure sensor 14 sends a signal to the main controller, so that the main controller controls the electromagnet 13 to cut off the power, thereby releasing the adsorption of the iron block 12, so that the mold 1 falls onto the belt conveyor 7 below, and the belt conveyor 7 can transport the printed contact lens to the next process.

[0033] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical methods, and they can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller is a conventional known device, and there is an existing disclosed power connection technology. Therefore, the text will not go into too much detail on its specific structural composition and working principle.

[0034] It should be noted that in this article, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contact lens inkjet printer feeding mechanism, comprising a mold (1), a pad printing plate (2) being arranged on the upper side of the mold (1), a mounting plate (3) being arranged on the upper side of the pad printing plate (2), a pad printing head (4) being fixedly connected to the bottom of the mounting plate (3), characterized in that: A plurality of positioning grooves (9) are provided on the inner side of the mold (1), and adsorption components are provided on both the left and right sides of the mold (1); The adsorption assembly comprises a fixing frame (8) and a mounting block (11); an iron block (12) is fixedly connected to the upper side of the mounting block (11); an electromagnet (13) is fixedly mounted on a side of the fixing frame (8) close to the iron block (12); and a pressure sensor (14) is also fixedly mounted on the outer wall of the fixing frame (8); An extrusion assembly corresponding to the pressure sensor (14) is arranged on the lower side of the mounting plate (3); The extrusion assembly comprises a connecting rod (15), the outer side of the connecting rod (15) is sleeved with a sleeve (16), the lower end of the sleeve (16) is fixedly connected with a contact (17), and a spring (18) is arranged inside the sleeve (16).

2. A contact lens inkjet printer feeding mechanism according to claim 1, characterized in that: A belt conveyor (7) is provided on the lower side of the mold (1).

3. A contact lens inkjet printer feeding mechanism according to claim 1, characterized in that: A plurality of printing plates (5) are slidably mounted on the upper part of the printing plate (2), a partition plate (6) is arranged between every two adjacent printing plates (5), and the partition plate (6) is fixedly connected to the printing plate (2).

4. A contact lens inkjet printer feeding mechanism according to claim 1, characterized in that: The mounting block (11) is fixedly connected to the side of the mold (1), and the pressure sensor (14) is located directly below the contact (17).

5. A contact lens inkjet printer feeding mechanism according to claim 1, characterized in that: A buffer pad (10) is fixedly connected to the inner wall of the positioning groove (9), and the buffer pad (10) is made of silica gel.

6. A contact lens inkjet printer feeding mechanism according to claim 1, characterized in that: The upper end of the connecting rod (15) is fixedly connected to the bottom of the mounting plate (3), the upper end of the spring (18) is fixedly connected to the lower end of the connecting rod (15), and the lower end of the spring (18) is fixedly connected to the inner bottom wall of the sleeve (16).

7. A contact lens inkjet printer feeding mechanism according to claim 3, characterized in that: The number of the pad printing head (4), the printing plate (5) and the positioning grooves (9) in the single mold (1) is equal.

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