TWI866279B - Method for manufacturing moisturizing contact lens - Google Patents

Abstract

The invention relates to a method for manufacturing moisturizing contact lens. Primarily, a contact lens is placed on a tray of a contact lens modification processing machine, and then feeding units of the contact lens modification processing machine drive an arc generating unit to clear impurities blocked in pores of the lens of the contact lens. Furthermore, a plurality of straight grooves is formed on a surface of the lens of the contact lens to manufacture a moisturizing contact lens. In this way, it can restore the breathability, oxygen permeability and hydrophilicity of the contact lens. With the design of the straight grooves on the surface of the lens of the contact lens, tears can be stored in the grooves to maintain the moisture level between an eye and the contact lens and it enhances the tear circulation. Accordingly, it can effectively solve the trouble that eyes tend to feel dry and uncomfortable due to the prolonged wear of contact lenses, which requires frequent use of eye drops or artificial tears, so as to improve the comfort and convenience of wearing contact lenses.

Description

Manufacturing method of moisturizing contact lenses (I)

The present invention relates to the field of contact lens technology, and in particular to a method for manufacturing moisturizing contact lenses.

According to the current contact lens manufacturing methods, there are turning, rotational molding and casting methods. Among them, turning is complex and not suitable for mass production, while rotational molding is difficult to use for producing complex high-end lenses. Casting can be used for mass production and can also produce complex high-end lenses, so most contact lenses are currently made by this method. The casting method mainly involves injecting liquid raw materials into a designed mold, and then curing the liquid raw materials in the mold with UV curing or heat curing. After cooling, the mold is removed to obtain the contact lens. The casting method takes about 1 minute to cool down. However, in practice, for efficiency reasons, the liquid raw materials are usually injected into the mold and immediately demolded after curing. As a result, the pores of the contact lens originally designed for ventilation are easily blocked due to high-temperature demolding, rapid cooling, and drastic shrinkage. Therefore, existing contact lenses are prone to problems such as hypoxia of the eyeball and discomfort to wear due to poor air permeability, poor oxygen permeability, and lack of hydrophilicity.

Contact lenses cover the surface of the eyeball, which not only affects the secretion of tears, but also squeezes the tears out. When wearing contact lenses for a long time, the eyes are prone to dryness and discomfort due to lack of water. Therefore, when wearing contact lenses, people will use eye drops or artificial tears to relieve the problem of dry eyes. However, regular use of eye drops or artificial tears not only causes trouble and inconvenience in wearing contact lenses, but also increases the economic cost of purchasing eye drops and artificial tears. Moreover, if the eye drops and artificial tears used contain preservatives, they will also cause dangers such as corneal ulcers. Therefore, how to increase the water content of contact lenses has always been the focus of contact lens research and development. The existing methods for increasing the water content of contact lenses mainly focus on material improvement. For example, the Department of Materials Science and Engineering of National Yang Ming Chiao Tung University proposed a paper titled "Study on the Optimization of Silicone Hydrogel Contact Lens Formula and Surface Modification". The paper consists of two parts. The first part is the research and development and optimization of silicone hydrogel contact lenses, and the second part is to use surface modification technology to modify a variety of contact lenses to achieve the purpose of optimizing performance. Among them, the first part is to select a suitable combination from large molecular silicon-containing monomers and small molecular silicon-containing monomers to find the best formula that can form silicone hydrogel contact lenses to improve the tensile strength and Young's modulus of contact lenses. The second part is to modify the surface of the silicone hydrogel contact lens MCL and the other two contact lenses BCL and WCL prepared in the first part to optimize their hydrophilicity, lubricity and moisturizing properties, and explore the modification mechanism of moisturizing factors. Through testing, it was found that inserting moisturizing factors into the mesh of the contact lens polymer can achieve the modification effect of improving lubricity and moisturizing properties. However, although this material modification method can achieve the purpose of increasing the water content of contact lenses, its process is complicated and time-consuming, prone to errors, and has a high manufacturing cost, which cannot meet the modern industry needs of high efficiency and low cost.

Therefore, the inventor of the present invention has found that the existing contact lenses still have the above-mentioned deficiencies in manufacturing and use, and has developed the present invention with the assistance of his many years of manufacturing and design experience and knowledge in related fields and after much ingenuity.

The present invention relates to a method for manufacturing a moisturizing contact lens. Its main purpose is to provide a method for manufacturing a moisturizing contact lens that can easily form a straight groove on the surface of the contact lens to store tears, and remove impurities that clog the pores of the contact lens, so as to restore the breathability, oxygen permeability and hydrophilicity of the contact lens and maintain the moisture between the eyeball and the contact lens for a long time.

In order to achieve the above-mentioned implementation purpose, the inventors have developed the following method for manufacturing moisturizing contact lenses, which mainly includes a contact lens modification machine, the contact lens modification machine includes a machine body, and at least one tray is provided on the table of the machine body, and at least one dry contact lens lens is placed on the tray, and at least one feeding unit is installed on the machine body, and the at least one feeding unit drives the tray and At least one of the arc generating units is displaced, and the arc generating unit is connected to a gas supply unit. The gas supply unit introduces a working gas without moisture into the arc generating unit, so that the arc generating unit decomposes the working gas into plasma, and then the plasma is sprayed from the nozzle of the arc generating unit onto the lens surface of the contact lens, so that at least one straight groove is formed on the lens surface of the contact lens.

In the manufacturing method of the moisturizing contact lens as described above, the plasma output by the arc generating unit is sprayed on the surface of the lens of the contact lens to remove impurities blocking the pores of the lens of the contact lens and remove the micro-burrs of the lens of the contact lens.

The manufacturing method of the moisturizing contact lens as described above, wherein the at least one feeding unit of the contact lens modification processing machine includes at least one first axial feeding unit and a second axial feeding unit, the first axial feeding unit includes a first driving module and a first displacement module connected to the first driving module, the first driving module of the first axial feeding unit is fixedly mounted on the table of the machine body, and the tray is mounted on the second axial feeding unit. On the first displacement module of an axial feed unit, the second axial feed unit includes a second drive module and a second displacement module connected to the second drive module. Two opposite supports are provided on the machine body, and the second drive module of the second axial feed unit is fixed between the two supports. The second axial feed unit is located above the first axial feed unit, and the arc generating unit is arranged on the second displacement module.

The manufacturing method of the moisturizing contact lens as described above, wherein the contact lens modification machine further comprises a third axial feeding unit, the third axial feeding unit comprises a third driving module and a third displacement module transmission-connected to the third driving module, the third driving module is arranged on the second displacement module, and the arc generating unit is arranged on the third displacement module.

In the manufacturing method of the moisturizing contact lens as described above, the arc generating unit of the contact lens reforming machine includes a unit body, and a chamber is formed in the unit body, and an arc generating module is provided in the chamber of the unit body, and a hollow tube is arranged below the unit body, and the hollow tube is communicated with the chamber of the unit body, and a nozzle is arranged at the bottom end of the hollow tube, and at least one nozzle is provided in the nozzle, and the nozzle is communicated with the hollow tube.

The manufacturing method of the moisturizing contact lens as described above, wherein the contact lens modification machine is provided with a control unit in its body, and an operation module and a display module are provided outside the body, and the control unit is signal-connected with its operation module, its display module, the feed unit, the arc generating unit and the gas supply unit.

Accordingly, during the manufacturing process of the present invention, the contact lenses are placed on a tray of a contact lens modification machine, and then the feed unit of the contact lens modification machine is driven to drive the arc generating unit to remove impurities blocking the pores of the contact lens, and to form straight grooves on the surface of the contact lens to produce a moisturizing contact lens, thereby restoring the breathability and oxygen permeability of the contact lens. The linear groove design on the surface of the lens of the moisturizing contact lens can store tears in the linear groove to maintain the moisture between the eyeball and the contact lens for a long time and improve the circulation of tears, so as to effectively solve the problem of dry eyes and discomfort caused by wearing contact lenses for a long time, and to improve the comfort and convenience of wearing contact lenses.

1: Body

11: Countertop

12: Pillar

2: First axial feed unit

21: First drive module

22: First displacement module

23: Tray

231: Workpiece positioning unit

3: Second axial feed unit

31: Second drive module

32: Second displacement module

4: The third axial feed unit

41: The third drive module

42: The third displacement module

5: Arc generating unit

51:Unit body

52: Arc generation module

53:Hollow tube

54: Spray head

541: Blowhole

6: Gas supply unit

7: Control unit

71: Operation module

72: Display module

8: Lens

9: Moisturizing contact lenses

91: Lens body

911: Optical District

912: Non-optical area

913: Marginal Area

92: Groove

93: Fine holes

Figure 1: Flowchart of the present invention

Figure 2: A three-dimensional diagram of the contact lens modification and processing machine of the present invention

Figure 3: A partially enlarged three-dimensional image of the contact lens modification and processing machine of the present invention

Figure 4: Front view of the contact lens modification machine of the present invention

Figure 5: Schematic diagram of the contact lens modification processing machine of the present invention in use

Figure 6: A three-dimensional image of the moisturizing contact lens of the present invention

Figure 7: Top view of the moisturizing contact lens of the present invention

Figure 8: Cross-sectional view of the moisturizing contact lens of the present invention

Figure 9: Cross-sectional view of another embodiment of the moisturizing contact lens of the present invention

In order to make the technical means of the present invention and the effects it can achieve more complete and clear disclosure, the following is a detailed description. Please also refer to the disclosed drawings and figure numbers:

First, please refer to the first figure, which is a method for manufacturing a moisturizing contact lens of the present invention. The implementation steps include: A. Preparing a contact lens modification machine: Please refer to the second and third figures, the contact lens modification machine includes a machine body (1), and at least one first axial feeding unit (2) is provided on the table (11) of the machine body (1). The main embodiment of the present invention is to provide two first axial feeding units (2) on the table (11) of the machine body (1). The first axial feeding unit (2) is an X-axis feeding unit, which includes a first axial feeding unit (2). A driving module (21) and a first displacement module (22) transmission-connected to the first driving module (21), the first driving module (21) is fixedly mounted on a table (11) of the machine body (1), a tray (23) is assembled on the first displacement module (22), and at least one workpiece positioning portion (231) in the form of a pit is provided on the tray (23), and the machine body (1) is provided with a support (12) on two opposite sides, and a second axial feeding unit (3) is provided, and the second axial feeding unit (3) is a Y-axis feeding unit. The feeding unit comprises a second driving module (31) and a second displacement module (32) which is transmission-connected to the second driving module (31). The second driving module (31) is fixedly arranged between the two pillars (12) so that the second axial feeding unit (3) is located above the first axial feeding unit (2). A third axial feeding unit (4) is also arranged. The third axial feeding unit (4) is a Z-axis feeding unit and comprises a third driving module (41) and a third displacement module (32) which is transmission-connected to the third driving module (41). (42), the first axial feeding unit (2), the second axial feeding unit (3) and the third axial feeding unit (4) can be linear slide rails, so that the third driving module (41) is assembled on the second displacement module (32), and an arc generating unit (5) is assembled on the third displacement module (42), and the arc generating unit (5) includes a unit body (51), and a chamber is formed in the unit body (51), and an arc generating module (52) is arranged in the chamber of the unit body (51), and the arc generating module (52) is arranged in the unit body ( A hollow tube (53) is arranged below the arc generating unit (51), and the hollow tube (53) is communicated with the chamber of the unit main body (51). A nozzle (54) is arranged at the bottom of the hollow tube (53). The nozzle (54) has at least one nozzle hole (541) at the bottom, and the nozzle hole (541) is communicated with the hollow tube (53). A gas supply unit (6) is also arranged. The gas supply unit (6) is connected to the chamber of the unit main body (51) of the arc generating unit (5) by a pipeline. The gas supply unit (6) can supply gas to the arc generating unit (5). The working gas does not contain moisture, and a control unit (7) is further provided. The control unit (7) is a programmable controller (PLC). Please refer to the fourth figure. The control unit (7) is arranged in the machine body (1). An operation module (71) and a display module (72) are arranged outside the machine body (1). The control unit (7) and its operation module (71), display module (72) and the first axial feed unit (2), the second axial feed unit (3), the third axial feed unit (4), the arc generating unit (5) and the gas A. Preparing contact lenses: placing at least one dry-type contact lens (8) after demolding from a mold in at least one workpiece positioning portion (231) of a tray (23) of the contact lens modification machine, and making one side surface of the contact lens (8) face upward. The main embodiment of the present invention is to prepare a plurality of contact lens (8) to be respectively placed in a plurality of workpiece positioning portions (231) arranged in a matrix on the tray (23); C. Clearing pore blockage: then the contact lens modification machine The operating module (71) performs the working coordinates and operation procedures of the first axial feed unit (2), the second axial feed unit (3) and the third axial feed unit (4), as well as the arc output power and output time of the arc generating unit (5), and the working gas flow rate and carrier gas flow rate of the gas supply unit (6) and other parameters and processing formula settings. At the same time, the display module (72) will display the setting status of these parameters and processing formulas, and when the contact lens modification processing machine is in operation, its working status will be displayed in real time to ensure processing accuracy. Then, the control unit (7) automatically drives the arc generating module (52) of the arc generating unit (5) to generate an arc according to the set program, and at the same time, the gas supply unit (6) introduces the water-free working gas into the chamber of the unit main body (51) of the arc generating unit (5). After the working gas enters the chamber of the unit main body (51), it is immediately decomposed into plasma by the arc generated by the arc generating module (52), and then The plasma enters the hollow tube (53) below the unit body (51), and is sprayed onto the surface of the lens (8) of the contact lens from the nozzle (541) at the bottom end of the hollow tube (53), so as to remove impurities adhering to and clogging the pores of the lens (8) of the contact lens, thereby achieving the effect of clearing the pores, and at the same time, removing the micro-burrs generated on the lens (8) during the separation process of the lens (8) of the contact lens from the mold. As shown in FIG. 5, the control unit (7) drives the second drive module (31) of the second axial feed unit (3) to drive the second displacement module (32) and the arc generating unit (5) mounted on the second displacement module (32) to move from left to right along the Y axis, so as to complete the cleaning operation of the pore blockage of the contact lens (8) in the first row of the tray (23) one by one. Then, the control unit (7) drives the first drive module (21) of the first axial feed unit (2) to drive the first displacement module (22) and the tray (23) mounted on the first displacement module (22) to move backward along the X axis to be away from the arc generating unit (5). The relay control unit (7) drives the second axial feeding unit (3) to drive the arc generating unit (5) to move from right to left to reset, and suspends the operation of the arc generating unit (5), and drives the first axial feeding unit (2) to drive the tray (23) to move forward, so that the lens (8) of the contact lens located in the second row of the tray (23) and the The arc generating unit (5) is positioned correspondingly, and then the arc generating unit (5) is driven to output plasma to clear the blocked pores and micro-burrs of the lenses (8) of the second row of contact lenses. The above process is repeated to complete the clearing of blocked pores and micro-burrs of the lenses (8) of all contact lenses on the tray (23); D. Forming a moisturizing groove: The operating module (71) of the control unit (7) adjusts the arc output power of the arc generating unit (5) and the parameters such as the working gas flow rate and the carrier gas flow rate of the gas supply unit (6) to increase the plasma spraying from the nozzle (541) of the nozzle (54) of the arc generating unit (5). The strength of the contact lens (8) is struck to etch a linear groove on the surface of the contact lens (8), and then the control unit (7) drives the second axial feeding unit (3) and the first axial feeding unit (2) to drive the arc generating unit (5) and the tray (23) to move respectively, so as to complete the tray (23) on the The groove processing operation of all contact lens (8) of the contact lens is completed; E. Take out the finished product: When all contact lens (8) on the tray (23) are processed, the control unit (7) will suspend the operation of the arc generating unit (5) and drive the first axial feeding unit (2) and the second axial feeding unit (3) to drive the tray (23) respectively. and the arc generating unit (5) is reset, and then the third axial feeding unit (4) is driven to drive the arc generating unit (5) to move upward along the Z axis away from the tray (23), so as to take the processed contact lens (8) out of the tray (23) and place the next batch of contact lens (8) to be processed on the tray (23).

According to the manufacturing method of the present invention, impurities that clog the pores of the lens (8) of the contact lens can be easily removed to improve the oxygen permeability and hydrophilicity of the lens (8) of the contact lens. At the same time, the micro-burrs generated when the lens (8) of the contact lens is demolded can be removed to reduce the foreign body sensation when the contact lens contacts the cornea when the contact lens is worn, and a moisturizing contact lens with straight grooves on the surface can be manufactured. Using a non-moisture-containing working gas helps to maintain the stability of the surface modification for a long time, so that the linear grooves and other structures after the surface modification are not easy to be restored and disappear. The present invention has been found through many experiments that if a working gas containing water is used, a false effect will be formed. After a period of time, the linear grooves and other structures will be restored and disappear, and the lens (8) will be restored to the original groove-free smooth surface.

Please refer to the sixth to eighth figures, which show that the moisturizing contact lens (9) of the present invention comprises a lens body (91) in the shape of an arc sheet, and the lens body (91) forms a first surface and a second surface opposite to each other, the first surface is a concave surface, and the second surface is a convex surface, and the lens body (91) comprises an optical area (911), a non-optical area (912) and an edge area (913) in sequence from the center to the outside, and the lens body (91) comprises an optical area (911), a non-optical area (912) and an edge area (913) in sequence ... The lens body (91) is formed with at least one straight groove (92) at the non-optical area (912) of the first surface thereof. The main embodiment of the present invention is to form a plurality of parallel and spaced straight grooves (92) at the non-optical area (912) of the first surface of the lens body (91), and to form a plurality of fine holes (93) penetrating the first surface and the second surface of the lens body (91) at the non-optical area (912) of the lens body (91).

Thus, when the moisturizing contact lens (9) of the present invention is used, the concave first surface of the lens body (91) is covered on the surface of the eyeball, and the plurality of fine holes (93) provided on the lens body (91) are used to provide the moisturizing contact lens (9) with a breathable and oxygen-permeable effect when worn. In addition, when the eyeball secretes tears, the tears can be stored in the In the straight groove (92) provided in the non-optical area (912), the tear fluid will not evaporate or be squeezed out due to pressure, so as to maintain the water content and humidity between the eyeball and the lens body (91) for a long time and improve the tear circulation effect. At the same time, the tear protein can be reduced to form esters on the surface of the lens body (91), so as to improve the wearing comfort of the contact lens. Furthermore, since the moisturizing contact lens (9) of the present invention can store tears in the groove (92) to maintain the moisture between the eyeball and the lens body (91) for a long time, the eyes will not feel dry and uncomfortable due to lack of water even if they are worn for a long time. Therefore, it is not necessary to use eye drops or artificial tears to relieve dry eyes, so as to improve the convenience of wearing contact lenses. At the same time, it can also save the cost of purchasing eye drops and artificial tears. In particular, it can avoid the use of eye drops and artificial tears containing preservatives, which may cause corneal ulcers and other dangers, so as to improve the safety of wearing contact lenses.

The above-mentioned embodiments or drawings do not limit the implementation of the present invention. In addition to forming the linear groove (92) on the first surface of the lens body (91), the present invention can also form the linear groove (92) in the non-optical area (912) of the second surface of the lens body (91), as shown in FIG. 9. In addition, the present invention can omit the step of clearing the pore blockage and directly form the linear groove (92) on the contact lens, or first perform the step of forming the moisturizing groove and then perform the step of clearing the pore blockage. In addition, the present invention can select a nozzle (54) of a suitable size according to the size of the contact lens (8) to be processed. Here, any appropriate changes or modifications made by a person with ordinary knowledge in the relevant technical field should be regarded as not departing from the patent scope of the present invention.

From the above structure and implementation method, it can be seen that the present invention has the following advantages:

1. The manufacturing method of the moisturizing contact lens of the present invention is to use an electric arc to decompose the working gas into plasma, and then spray the plasma at high speed on the surface of the contact lens. According to this, the impurities blocking the pores of the contact lens can be easily removed, and a straight groove for storing tears can be formed on the surface of the contact lens. The manufacturing process is simple, fast and low-cost, and it is highly competitive in the industry.

2. The manufacturing method of the moisturizing contact lens of the present invention is to connect the arc generating unit and the tray with the axial feeding unit, thereby increasing the processing range of the arc generating unit, so as to achieve a faster and more stable effect of removing impurities and forming grooves that clog the pores of the contact lens.

3. The manufacturing method of the moisturizing contact lens of the present invention can adjust the arc output power of the arc generating unit and the working gas flow rate and carrier gas flow rate of the gas supply unit by the control unit to achieve more effective cleaning of impurities blocking the pores of the contact lens and the effect of forming the moisturizing grooves required.

4. The manufacturing method of the moisturizing contact lens of the present invention uses a water-free working gas, which can help maintain the stability of the surface modification of the contact lens for a long time, making it difficult for the structures such as the linear grooves after the surface modification to be restored and disappear.

5. The manufacturing method of the moisturizing contact lens of the present invention can remove impurities that are clogged in the pores of the lens of the existing contact lens due to high-temperature demolding, so as to restore the air and oxygen permeability of the pores of the lens of the contact lens. At the same time, it can also remove the micro-burrs generated during the separation process of the lens of the contact lens from the mold, so as to reduce the foreign body sensation when the contact lens contacts the cornea when being worn.

6. The moisturizing contact lenses of the present invention are provided with linear grooves on the surface of the lens body, thereby keeping the tears in the linear grooves and preventing them from evaporating or being squeezed out by pressure, so as to maintain the water content and humidity between the eyeball and the lens body for a long time, and improve the tear circulation effect. At the same time, it can reduce the formation of esters by tear proteins on the contact lenses, so as to further improve the wearing comfort of the contact lenses.

7. The moisturizing contact lenses of the present invention are provided with linear grooves on the surface of the lens body for tears to be stored in the grooves, which can maintain the moisture between the eyeball and the lens body for a long time and enhance the tear circulation effect. Therefore, it is not necessary to use eye drops or artificial tears to relieve dry eyes, and the contact lenses are more convenient to wear.

8. The moisturizing contact lenses of the present invention are provided with linear grooves on the surface of the lens body so that tears can be stored in the grooves to maintain the moisture between the eyeball and the lens body for a long time. Therefore, it is not necessary to use eye drops or artificial tears during use, thereby saving the cost of purchasing eye drops and artificial tears, and avoiding the danger of corneal ulcers caused by the use of eye drops and artificial tears containing preservatives, thereby improving the safety of wearing contact lenses.

In summary, the embodiments of the present invention can achieve the expected effects, and the specific structure disclosed is not only not seen in similar products, but also has not been disclosed before the application. It fully complies with the provisions and requirements of the Patent Law. Therefore, an application for invention patent is filed in accordance with the law. I sincerely request your review and grant of patent. I would really appreciate the convenience.

1: Body

2: First axial feed unit

3: Second axial feed unit

4: The third axial feed unit

5: Arc generating unit

6: Gas supply unit

7: Control unit

72: Display module

Claims (6)

A method for manufacturing a moisturizing contact lens mainly comprises a contact lens modification machine, the contact lens modification machine comprises a machine body, and at least one tray is arranged on the table of the machine body, and at least one dry contact lens is placed on the tray, and at least one feeding unit is installed on the machine body, and the at least one feeding unit drives the tray and an arc generating unit to generate at least one electric arc. One of them is displaced, and the arc generating unit is connected to a gas supply unit. The gas supply unit introduces a working gas without moisture into the arc generating unit, so that the arc generating unit decomposes the working gas into plasma, and then the plasma is sprayed from the nozzle of the arc generating unit onto the lens surface of the contact lens, so that at least one straight groove is formed on the lens surface of the contact lens. The manufacturing method of moisturizing contact lenses as described in claim 1, wherein the plasma output by the arc generating unit is sprayed on the surface of the lens of the contact lenses to remove impurities blocking the pores of the lens of the contact lenses and remove the micro-burrs of the lens of the contact lenses. The manufacturing method of the moisturizing contact lens as described in claim 1, wherein at least one feeding unit of the contact lens modification processing machine includes at least one first axial feeding unit and a second axial feeding unit, the first axial feeding unit includes a first driving module and a first displacement module connected to the first driving module, the first driving module of the first axial feeding unit is fixedly mounted on the table of the machine body, and the tray is mounted on the On the first displacement module of the first axial feed unit, the second axial feed unit includes a second drive module and a second displacement module connected to the second drive module. Two opposite supports are provided on the body, and the second drive module of the second axial feed unit is fixedly arranged between the two supports. The second axial feed unit is located above the first axial feed unit, and the arc generating unit is arranged on the second displacement module. The manufacturing method of the moisturizing contact lens as described in claim 3, wherein the contact lens modification machine further comprises a third axial feeding unit, the third axial feeding unit comprises a third driving module and a third displacement module transmission-connected to the third driving module, the third driving module is arranged on the second displacement module, and the arc generating unit is arranged on the third displacement module. The manufacturing method of moisturizing contact lenses as described in claim 1, wherein the arc generating unit of the contact lens reforming machine comprises a unit body, and a chamber is formed in the unit body, and an arc generating module is arranged in the chamber of the unit body, and a hollow tube is arranged below the unit body, and the hollow tube is communicated with the chamber of the unit body, and a nozzle is arranged at the bottom end of the hollow tube, and at least one nozzle is arranged on the nozzle, and the nozzle is communicated with the hollow tube. The manufacturing method of moisturizing contact lenses as described in claim 1, wherein the contact lens reforming machine is provided with a control unit in its body, and an operating module and a display module are provided outside the body, and the control unit is signal-connected with its operating module, its display module, the feeding unit, the arc generating unit and the gas supply unit.

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