TWI254668B - De-molding device for contact lenses - Google Patents

De-molding device for contact lenses Download PDF

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Publication number
TWI254668B
TWI254668B TW92110123A TW92110123A TWI254668B TW I254668 B TWI254668 B TW I254668B TW 92110123 A TW92110123 A TW 92110123A TW 92110123 A TW92110123 A TW 92110123A TW I254668 B TWI254668 B TW I254668B
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Taiwan
Prior art keywords
inverted
plastic mold
moving member
cube
rotating member
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TW92110123A
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Chinese (zh)
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TW200422178A (en
Inventor
Yu-Ran Jou
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St Shine Optical Co Ltd
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Priority to TW92110123A priority Critical patent/TWI254668B/en
Publication of TW200422178A publication Critical patent/TW200422178A/en
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Publication of TWI254668B publication Critical patent/TWI254668B/en

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Abstract

Disclosed is a de-molding device for contact lenses, wherein an inverted-L shaped component has an end in the form of a planar shape to be mounted to a planar base. The inverted L-shaped component has another end configured to a cube. On the end that is configured to the cube, a first bore penetrating vertically and a second bore penetrating horizontally are defined through the cube. A movable member is pivoted to the first bore of the inverted L-shaped component and is capable of vertical movement. The movable member includes an adjustment member. The adjusting member is able to adjust the distance that the movable member moves in the vertical direction. An impact member is pivoted to the movable member to move vertically with the movable member. A rotatable member is pivoted to the second bore of the inverted L-shaped component. Rotation of the rotatable member drives the vertical movement of the movable member. A grip is pivoted to the rotatable member, with operation along a circumferential path driving the rotation of the rotatable member.

Description

1254668 玖、發明說明 【發明所屬之技術領域】 本發明係關於一種脫模裝置,特別是關於一種用於隱形 眼鏡之脫模裝置。 【先前技術】 在隱形眼鏡的製造程序中,其中的步驟如圖1 A爲習知凸面塑 膠模具與凹面塑膠模具於壓合操作前之示意圖與圖1 B爲習知凸 面塑膠模具與凹面塑膠模具於壓合操作後之示意圖所示’是將呈 流體狀之單體注入凹面塑膠模具60,此單體爲製造隱形眼鏡片 (未繪示)之聚合物。然後壓合凸面塑膠模具50與具有單體之凹面 塑膠模具60。其次,以塑化程序來製成隱形眼鏡片,即將壓合後 之呈流體狀之單體置於如熱風箱(未繪示)中,以特定溫度之熱風 烘烤一預定時間使固化後,以形成一隱形眼鏡片。接著,利用室 溫來冷卻凸面塑膠模具50與凹面塑膠模具60內的隱形眼鏡片, 再利用如脫膜機之裝置(未繪示)來取出隱形眼鏡片。 因應自動化製造流程,圖1B中之凸面塑膠模具50與凹面塑膠 模具60的在組合狀態下,可藉由習知具自動化的脫模機將凸面 塑膠模具50與凹面塑膠模具60分離並取出其中的隱形眼鏡片, 而達到所謂自動化量產之目的。 習知脫模機是要先將組合狀態之凸面塑膠模具與凹面塑膠模 具撞擊而分離,然後附著在凸面塑膠模具或凹面塑膠模具上的隱 形眼鏡片利用吹出或夾出的方式取出鏡片。但在每一批或不同批 之隱形眼鏡片的製造上,必須每次調整脫模機撞擊組合狀態之凹 面塑膠模具的力道與位置,如此需要花時間去測試,以調整較佳 5 326\專利說明書(補件)\92-04\TF924508 1254668 的撞擊力道與位置。而且,脫模機在調整撞擊的力道與位置之 後,也常發生隱形眼鏡片因撞擊而產生破裂的現象,使得在製造 上的良率降低。又,脫模機將凸面塑膠模具與凹面塑膠模具撞擊 而分離時,希望隱形眼鏡片能附著在凸面塑膠模具上,而較易取 出隱形眼鏡片,但有時隱形眼鏡片會附著在凹面塑膠模具上,造 成不易取出隱形眼鏡片。再者,脫模機的構造複雜,相對地,機 器成本昂貴、佔空間,在維修上也比較複雜,也需要耗費較多的 人力。 【發明內容】 基於上述之習知脫模機的缺點,本發明之目的在於提供一種用 於隱形眼鏡之脫模裝置,其可簡單容易地調整出撞擊凸面塑膠模 具與凹面塑膠模具的力道與位置,並且在撞擊後不會使隱形眼鏡 片產生破裂的現象,而提高在製造上的良率;脫模裝置將凸面塑 膠模具與凹面塑膠模具撞擊而分離時,能將隱形眼鏡片附著在凸 面塑膠模具上,而易取出隱形眼鏡片;脫模裝置的構造簡單、成 本低廉、不佔空間、維修容易,也不需要耗費很多的人力。 本發明在於提供一種用於隱形眼鏡之脫模裝置,其包含一平面 底座、一倒L形組裝件、一移動件、一撞擊件、一旋轉件及一拉 把。倒L形組裝件的一端呈平板狀,可安裝在平面底座上,倒l 形組裝件的另一端呈立方體狀,在其呈立方體狀之端具有上下貫 通之一第一孔與左右貫通之一第二孔;移動件樞接於倒L形組裝 件之第一孔並可上下移動,移動件具有一調整件,該調整件可調 整移動件上下移動的距離;撞擊件樞接於移動件,隨著移動件上 下移動;旋轉件樞接於倒L形組裝件之第二孔,該旋轉件之轉動 6 326\專利說明書(補件)\92-04\TF924508 1254668 可帶動移動件上下移動;及,拉把樞接於旋轉件,以圓周路徑操 作而帶動旋轉件轉動。 【實施方式】 以下參照附圖說明本發明之一較佳具體例,圖2爲本發明之脫 模裝置的外形示意圖,圖3爲本發明之脫模裝置的操作示意圖。 圖2係說明用於隱形眼鏡之脫模裝置30之結構,其中,一平 面底座32可在其平面側置放如組合狀態之凸面塑膠模具與凹面 塑膠模具之物件48(如圖3所示),一倒L形組裝件34的一端是 呈平板狀之平板端35,此倒L形組裝件34藉由平板端35可安裝 在平面底座32的平面側上,倒L形組裝件34的另一端是呈立方 體狀之立方體端36,在立方體端36具有上下貫通孔與左右貫通 孔,一移動件38樞接於倒L形組裝件34之上下貫通孔並可上下 移動,移動件38的上端具有外螺紋(未繪示),一調整件39具有 內螺紋,如此,調整件39可螺接於移動件38的上端,藉由調整 件39的旋轉而可調整移動件38上下移動的距離,呈圓柱狀之一 撞擊件40樞接於移動件38的下端,並隨著移動件38上下移動 而動作,一旋轉件42樞接於倒L形組裝件之左右貫通孔,旋轉 件42之轉動可帶動移動件38上下移動,一拉把44樞接於旋轉 件42,以圓周路徑操作拉把44時可帶動旋轉件42前後轉動,由 旋轉件42貫穿其中之一彈簧46,其兩端分別置於倒L形組裝件 34之立方體端36之端面及旋轉件42與拉把44之樞接處,當拉 把44以圓周路徑操作時,可使拉把44產生回復力而回到定位。 呈流體狀之單體注入凹面塑膠模具與凸面塑膠模具之間’然後 經塑化程序、固化程序及冷卻程序等以製得一隱形眼鏡片’再利 7 326\專利說明書(補件)\92-04\TF924508 1254668 用如圖3之脫膜裝置30來取出隱形眼鏡片。 此時,將組合狀態之凸面塑膠模具與凹面塑膠模具之物件48 置放於平面底座32的平面側,然後操作拉把44以圓周路徑移動 以帶動旋轉件42前後轉動,再由旋轉件42之轉動帶動移動件38 上下移動,使得樞接移動件38上之撞擊件40向下撞擊物件48, 藉此調整撞擊件40撞擊物件48的位置及力道。當撞擊件40撞 擊物件48的位置不對及力道太輕或太重時,可以調整移動件38 與調整件39的相對位置,例如撞擊件40撞擊物件48的位置太 高時,旋轉調整件39由目前的位置向上旋動,可使得移動件38 和撞擊件39能更向下移動而調整撞擊物件48的位置,其他情況 以此類推。因此,對於脫模裝置30如此簡單之結構,只需調整 移動件38與調整件39的相對位置,便非常容易地調整出撞擊件 40撞擊物件48的位置及力道。 本發明之脫模裝置30操作相當簡單容易,只要單人就可操作 此裝置,不需要耗費很多的人力。脫模裝置30在撞擊凸面塑膠 模具與凹面塑膠模具之物件48而使其分離時,由於撞擊件40撞 擊物件48的位置及力道恰當,能將隱形眼鏡片能附著在凸面塑 膠模具上,而易取出隱形眼鏡片,並且因撞擊力道恰當而在撞擊 後不會使隱形眼鏡片產生破裂的現象,而可提高在製造上的良 率。脫模裝置30的構造簡單,因此設備成本相當低廉,也因爲 脫模裝置30的構造簡單,所以體積小不佔空間,沒有複雜的零 件組裝,在於裝置的維修也相當容易。 因此,本發明的優點係脫模裝置可簡單容易地調整出撞擊凸面 塑膠模具與凹面塑膠模具的力道與位置,並且在撞擊後不會使隱 8 326\專利說明書(補件)\92-04\TF924508 1254668 形眼鏡片產生破裂的現象,而提高在製造上的良率,且將凸面塑 膠模具與凹面塑膠模具撞擊而分離時,能將隱形眼鏡片附著在凸 面塑膠模具上,而易取出隱形眼鏡片。 本發明的另一優點係脫模裝置的構造簡單、設備成本低廉、體 積小不佔空間、組裝零件簡單而維修容易,在製程上也不需要耗 費很多的人力。 雖然本發明已參照較佳具體例及舉例性附圖敘述如上,惟其應 不被視爲係限制性者。熟悉本技藝者對其形態及具體例之內容做 各種修改、省略及變化,均不離開本發明之範圍。 【圖式簡單說明】 圖1A爲習知凸面塑膠模具與凹面塑膠模具於壓合操作前之示 意圖; 圖1 B爲習知凸面塑膠模具與凹面塑膠模具於壓合操作後之示 意圖; 圖2爲本發明之脫模裝置的外形示意圖;及 圖3爲本發明之脫模裝置的操作示意圖。 (元件符號說明) 3〇................脫模裝置 32................平面底座 34................倒L形組裝件 3 5................平板細 36................立方體端 38 ................移動件 39 ................調整件 9 326\專利說明書(補件)\92-04\TF924508 1254668 40................撞擊件 42................旋轉件 44................拉把 46................彈簧 48................物件 50................凸面塑膠模具 60................凹面塑膠模具BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a demolding apparatus, and more particularly to a demolding apparatus for contact lenses. [Prior Art] In the manufacturing process of the contact lens, the steps therein are as shown in FIG. 1A, which is a schematic diagram of a conventional convex plastic mold and a concave plastic mold before the pressing operation, and FIG. 1B is a conventional convex plastic mold and a concave plastic mold. The schematic view after the press-fitting operation is to inject a fluid-like monomer into a concave plastic mold 60, which is a polymer for manufacturing a contact lens (not shown). The convex plastic mold 50 is then press-fitted with a concave plastic mold 60 having a single body. Secondly, the contact lens is made by a plasticizing process, that is, the fluidized monomer is placed in a hot air box (not shown), and baked at a specific temperature for a predetermined time to be cured. To form a contact lens. Next, the room temperature is used to cool the contact lens in the convex plastic mold 50 and the concave plastic mold 60, and the contact lens unit (not shown) is used to take out the contact lens. In response to the automated manufacturing process, in the combined state of the convex plastic mold 50 and the concave plastic mold 60 in FIG. 1B, the convex plastic mold 50 and the concave plastic mold 60 can be separated and taken out by a conventional automatic mold release machine. Contact lens, and achieve the purpose of so-called automated mass production. The conventional stripping machine is to first separate the convex plastic mold in a combined state from the concave plastic mold, and then the contact lens attached to the convex plastic mold or the concave plastic mold is taken out by means of blowing or pinching. However, in the manufacture of contact lenses of each batch or different batches, it is necessary to adjust the force and position of the concave plastic mold of the combined state of the stripping machine every time, so it takes time to test to adjust the preferred 5 326\patent Manual (supplement) \92-04\TF924508 1254668 impact force and position. Moreover, after the stripper adjusts the force and position of the impact, the contact lens is often broken by the impact, so that the yield in manufacturing is lowered. Moreover, when the stripping machine separates the convex plastic mold from the concave plastic mold, it is desirable that the contact lens can be attached to the convex plastic mold, and the contact lens is easier to take out, but sometimes the contact lens will adhere to the concave plastic mold. On the top, it is difficult to remove the contact lens. Moreover, the structure of the stripping machine is complicated. Relatively, the machine is expensive and takes up space, and the maintenance is complicated, and it also requires a lot of manpower. SUMMARY OF THE INVENTION Based on the above-mentioned drawbacks of the conventional stripper, the object of the present invention is to provide a demolding device for a contact lens, which can easily and easily adjust the force and position of the impact convex plastic mold and the concave plastic mold. And after the impact, the contact lens will not be broken, and the manufacturing yield is improved; when the demolding device separates the convex plastic mold from the concave plastic mold, the contact lens can be attached to the convex plastic. The mold is easy to take out the contact lens; the demoulding device has the advantages of simple structure, low cost, no space occupation, easy maintenance, and no need for a lot of manpower. SUMMARY OF THE INVENTION The present invention is directed to a demolding apparatus for a contact lens comprising a planar base, an inverted L-shaped assembly, a moving member, a striker member, a rotating member and a pull handle. The inverted L-shaped assembly has a flat plate at one end and can be mounted on the flat base. The other end of the inverted l-shaped assembly has a cubic shape, and has one of the first holes and one of the left and right throughs at the end of the cube-shaped end. a second hole; the moving member is pivotally connected to the first hole of the inverted L-shaped assembly and can move up and down, the moving member has an adjusting member, the adjusting member can adjust the distance of the moving member to move up and down; the impact member is pivotally connected to the moving member, As the moving member moves up and down; the rotating member is pivotally connected to the second hole of the inverted L-shaped assembly, and the rotation of the rotating member 6 326\patent specification (supplement)\92-04\TF924508 1254668 can drive the moving member to move up and down; And the pull handle is pivotally connected to the rotating member, and operates in a circumferential path to drive the rotating member to rotate. [Embodiment] Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 2 is a schematic view showing the outer shape of the demolding apparatus of the present invention, and Fig. 3 is a schematic view showing the operation of the demolding apparatus of the present invention. 2 is a view showing the structure of a demolding device 30 for a contact lens, in which a flat base 32 can be placed on its flat side with a convex plastic mold and a concave plastic mold member 48 as shown in FIG. 3 (shown in FIG. 3). One end of the inverted L-shaped assembly 34 is a flat plate end 35. The inverted L-shaped assembly 34 can be mounted on the planar side of the planar base 32 by the flat end 35, and the inverted L-shaped assembly 34 is further One end is a cube-shaped cube end 36, and the cube end 36 has upper and lower through holes and left and right through holes. A moving member 38 is pivotally connected to the upper through hole of the inverted L-shaped assembly 34 and can move up and down, and the upper end of the moving member 38 With an external thread (not shown), an adjusting member 39 has an internal thread. Thus, the adjusting member 39 can be screwed to the upper end of the moving member 38, and the distance between the moving member 38 can be adjusted by the rotation of the adjusting member 39. One of the cylindrical impact members 40 is pivotally connected to the lower end of the moving member 38, and moves with the moving member 38 moving up and down. A rotating member 42 is pivotally connected to the left and right through holes of the inverted L-shaped assembly, and the rotating member 42 rotates. Can move the moving member 38 up and down, one pull The pivoting member 44 is pivotally connected to the rotating member 42 to rotate the rotating member 42 in a circumferential path. The rotating member 42 is rotated forward and backward. One of the springs 46 is inserted through the rotating member 42 and the two ends thereof are respectively placed at the cube end of the inverted L-shaped assembly 34. The end face of 36 and the pivotal connection of the rotating member 42 and the pull handle 44 enable the pull handle 44 to return to the position when the pull handle 44 is operated in the circumferential path. The fluid-like monomer is injected between the concave plastic mold and the convex plastic mold, and then a plasticizing procedure, a curing procedure, and a cooling procedure are performed to obtain a contact lens. [Reli 7 326\patent specification (supplement)\92 -04\TF924508 1254668 Use the stripping device 30 of Figure 3 to remove the contact lens. At this time, the convex plastic mold of the combined state and the object 48 of the concave plastic mold are placed on the plane side of the plane base 32, and then the handle 44 is moved in a circumferential path to drive the rotating member 42 to rotate back and forth, and then the rotating member 42 The rotation drives the moving member 38 to move up and down, so that the striker 40 on the pivoting moving member 38 strikes the object 48 downward, thereby adjusting the position and the force of the impact member 40 against the object 48. When the position of the impact member 40 hitting the object 48 is incorrect and the force is too light or too heavy, the relative position of the moving member 38 and the adjusting member 39 can be adjusted. For example, when the position of the impact member 40 hitting the object 48 is too high, the rotation adjusting member 39 is The current position is rotated upwards to allow the moving member 38 and the striker 39 to move further downwards to adjust the position of the impacting object 48, and so on. Therefore, with such a simple structure of the demolding device 30, it is very easy to adjust the position and force of the striking member 40 against the object 48 by simply adjusting the relative positions of the moving member 38 and the adjusting member 39. The demolding apparatus 30 of the present invention is relatively simple and easy to operate, and the apparatus can be operated by a single person without requiring a lot of labor. When the demolding device 30 is separated from the object 48 of the concave plastic mold and the concave plastic mold, the contact lens 40 can be attached to the convex plastic mold because the position of the impact member 40 and the force of the object 48 are appropriate. The contact lens is taken out, and the contact lens does not cause cracking of the contact lens after the impact due to the proper impact force, and the manufacturing yield can be improved. The structure of the demolding device 30 is simple, so that the equipment cost is relatively low, and because the structure of the demolding device 30 is simple, the volume is small and does not occupy space, and there is no complicated assembly of parts, and the maintenance of the device is also quite easy. Therefore, the advantage of the present invention is that the demolding device can easily and easily adjust the force and position of the impact convex plastic mold and the concave plastic mold, and will not make the hidden 8 326\patent specification (supplement)\92-04 after the impact. \TF924508 1254668 The lens is broken, and the manufacturing yield is improved. When the convex plastic mold is separated from the concave plastic mold, the contact lens can be attached to the convex plastic mold, and the invisible shape can be easily taken out. Spectacles. Another advantage of the present invention is that the demolding apparatus has a simple structure, low equipment cost, small volume and space, simple assembly parts, and easy maintenance, and does not require a lot of manpower in the manufacturing process. The present invention has been described above with reference to the preferred embodiments and the accompanying drawings, and should not be considered as limiting. Various modifications, omissions and changes may be made without departing from the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a schematic view of a conventional convex plastic mold and a concave plastic mold before a pressing operation; FIG. 1B is a schematic view of a conventional convex plastic mold and a concave plastic mold after a pressing operation; FIG. A schematic view of the outer shape of the demolding apparatus of the present invention; and FIG. 3 is a schematic view of the operation of the demolding apparatus of the present invention. (Component symbol description) 3〇................Removal device 32................Flat base 34.... ............ inverted L-shaped assembly 3 5................ flat thin 36............ ....cube end 38 ................moving piece 39 ................adjustment piece 9 326\patent specification ( Replenishment)\92-04\TF924508 1254668 40................impact member 42................rotating member 44. ............... Pull the handle 46................spring 48............. .. object 50................ convex plastic mold 60................ concave plastic mold

326\專利說明書(補件)\92-04\TF924508 10326\ patent specification (supplement)\92-04\TF924508 10

Claims (1)

1254668 拾、申請專利範圍 ]·一種用於隱形眼鏡之脫模裝置,其包含: 一平面底座; 一倒L形組裝件,其一端呈平板狀,可安裝在該平面底座上, 其另一端呈立方體狀,在其呈立方體狀之端具有上下貫通之一第 一孔與左右貫通之一第二孔; 一移動件,樞接於該倒L形組裝件之該第一孔並可上下移動, 該移動件具有一調整件,該調整件可調整該移動件上下移動的距 離; ~撞擊件,樞接於該移動件,隨著該移動件上下移動; 一旋轉件,樞接於該倒L形組裝件之該第二孔,該旋轉件之轉 動可帶動該移動件上下移動;及 一拉把,樞接於該旋轉件,以圓周路徑操作而帶動該旋轉件轉 動。 2.如申請專利範圍第1項之脫模裝置,其中,脫模裝置更包含 一彈簧,該旋轉件貫穿其中,該彈簧的兩端分別置於該倒L形組 裝件之呈立方體狀之端面及該旋轉件與該拉把之樞接處,使該拉 把產生回復力。 11 326\專利說明書(補件)\92-04\TF9245081254668 Pickup, Patent Application Range] A demolding device for a contact lens, comprising: a flat base; an inverted L-shaped assembly having a flat plate at one end and mounted on the flat base, the other end of which is a cube-shaped end having a first hole extending through the first hole and a second hole passing through the left and right ends at a cube-shaped end; a moving member pivotally connected to the first hole of the inverted L-shaped assembly and movable up and down, The moving member has an adjusting member, the adjusting member can adjust the distance of the moving member to move up and down; the impact member is pivotally connected to the moving member, and the moving member moves up and down; a rotating member is pivotally connected to the inverted L The second hole of the assembly member, the rotation of the rotating member can drive the moving member to move up and down; and a pull lever pivotally connected to the rotating member to operate in a circumferential path to drive the rotating member to rotate. 2. The demolding device of claim 1, wherein the demolding device further comprises a spring, the rotating member penetrating therethrough, and the two ends of the spring are respectively disposed on the cube-shaped end surface of the inverted L-shaped assembly And a pivotal connection between the rotating member and the pull handle, so that the pull handle generates a restoring force. 11 326\Patent specification (supplement)\92-04\TF924508
TW92110123A 2003-04-30 2003-04-30 De-molding device for contact lenses TWI254668B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI593539B (en) * 2014-04-17 2017-08-01 亨泰光學股份有限公司 Contact lenses releasing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI593539B (en) * 2014-04-17 2017-08-01 亨泰光學股份有限公司 Contact lenses releasing machine

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