Production method of secondary ejection nose pad spectacles and structure thereof
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A production method, secondary injection technology
Active Publication Date: 2014-10-01
王宏晶
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[0002] In the prior art, the nose pads of plastic spectacle frames are generally integrally formed on the frame, and the material properties are the same as those of the frame. Since the material properties of the spectacle frames are harder, the hardness of the nose pads will also be higher. That is to say, the bridge of the nose will feel oppressive and uncomfortable when worn, and long-term wearing will cause indentations
At present, there are also nose pads that are made of soft materials, which will relieve the pressure on the bridge of the nose when worn, but the nose pads and the frame are formed separately, and must be fixed on the frame by glue or locking screws. The disadvantage is that the installation is complicated and it is very easy to fall off
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Embodiment 1
[0030] A kind of production method of secondary injection nose pad glasses of the present invention, its steps are:
[0031] 1) In the spectacle frame mold, the spectacle frame raw material is injected into the spectacle frame with the nose pad fixing bump at one time in a high-temperature liquid state, cooled and shaped and trimmed;
[0032] 2) Place the nose pad fixing bump of the molded spectacle frame at the corresponding position of the nose pad mold, perform a second injection, inject high-temperature liquid nose pad material into the nose pad mold, and inject the nose pad material into the spectacle frame On the bump, cooling and fixing molding, forming a nose pad fixed on the bump, shaping and trimming;
[0033] 3) Inject the temples into the temple mold, cool the molding, release the mold and trim, and then paint and spray paint (or essential oil) after trimming:
[0034] 4) Assemble finished glasses frames and temples.
[0035] In the embodiment, the raw material o...
Embodiment 2
[0039] refer to Figure 5 and Figure 7 The structure of the glasses shown in this embodiment is characterized in that: the fixed bump 1 is provided with a fixing hole 2, and the fixing hole 2 is a slot hole arranged on the bump 1 of the spectacle frame. One or more ventilation holes 7 are provided. All the other are the same as the above embodiment.
[0040] The invention discloses a pair of glasses with nose pads injected twice. First, the glasses frame is injected, and the inner core of the nose pad 3 (the inner core is a bump 1) and the slot 2 of the inner core are reserved during injection, and then the second The nose pad 3 is injected for the first time, and the material of the nose pad 3 will pass through the fixing hole 2 during injection, so as not to fall off. At the same time, the viscosity of the material of the nose pad 3 will wrap around the bump 1 of the nose pad, making the bump 1 has good adhesion to the surface of the spectacle frame 4 to achieve an aesth...
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Abstract
The invention discloses a production method of secondary ejection nose pad spectacles and a structure thereof, and discloses a production technological method of spectacles with nose pads and a spectacle structure manufactured by utilizing the technological method. The production method comprises the following steps: 1) carrying out primary injection of spectacle framework with nose pad fixing lugs on spectacle framework raw materials under high-temperature liquid state in a spectacle framework mold, cooling, molding and finishing; 2) putting the nose pad fixing lugs of the molded spectacle framework at corresponding parts of nose pad molds, carrying out secondary injection, injecting the nose pad raw materials at high-temperature liquid state into the nose pad molds, injecting the nose pad raw materials onto the lugs of the spectacle framework, cooling, fixing and molding so as to form nose pads fixed on the lugs; 3) injecting spectacle legs into spectacle leg molds, cooling, molding and demolding; 4) assembling the spectacle frame with the spectacle legs to form a finished product. The invention also discloses a spectacle structure manufactured by the method. According to the invention, secondary injection is adopted, so that the nose pads and the spectacle framework form a favorable fixing effect; moreover, the manual cost is reduced; the efficiency is improved.
Description
technical field [0001] The invention belongs to the field of spectacles, and mainly relates to a production process and structure of spectacles with nose pads. technical background [0002] In the prior art, the nose pads of plastic spectacle frames are generally integrally formed on the frame, and the material properties are the same as those of the frame. Since the material properties of the spectacle frames are harder, the hardness of the nose pads will also be higher. That is to say, there will be a sense of pressure on the bridge of the nose when wearing it, which is uncomfortable, and long-term wearing will cause indentations. At present, there are also nose pads that are made of soft materials, which will relieve the pressure on the bridge of the nose when worn, but the nose pads and the frame are formed separately, and must be fixed on the frame by glue or locking screws. The disadvantage is that the installation is complicated and it is very easy to fall off. Con...
Claims
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