M425043 五、新型說明： 【新型所屬之技術領域】 本創作有關一 種防止氣勢與塑膠 動的量測機構。 【先前技術】 種塑膠吹軸之量峨構，翻是指一 薄膜之間具有過多空齡互雜產生振 ，7社3娜產σσ與人們的生活息息相_，使人們M425043 V. New description: [New technical field] This creation is related to a measuring mechanism for preventing momentum and plastic movement. [Prior Art] The amount of plastic blown shaft is a kind of structure, which means that there is too much space between the membranes to produce vibration, and the 7 s3 natal σσ is closely related to people's lives.
=更加便利’尤其是轉更是生活中不可或缺之物品， ^貝東贼料Π卿物辦，歸級人們便於 攜帶物品，而歸袋之製作過程，是先將_原料熔融， 再以螺桿壓，_吹職的_吹_ 的氣球管，而後再進一步加工f作出士 ,厂也 寻膜 I作成大小、厚度、形狀不 同的塑膠袋’㈣合各種不同狀況、場合使用。 考量塑勝細是卿雜切機吹製喊，由於在吹 製過程中，塑膠原料不斷推擠之下，使得塑膠薄膜之厚薄 度無法達舰想_，如吹如不符合要求龍膠袋即 成為廢品’造成塑膠原料的浪費，以至於製作成本提升， 是以量測薄膜厚度以利即時改⑽膜厚度大小在製程上a 必猪66。 < ^ 請參閱第1圖所示’傳統塑膠薄膜的量測裝置設有一 電容式感測器10’且上述電容式感測器1Q套接於—固定座 11上，以電容式感測器10直接接觸至塑料薄膜12測量其 電容值’再經由後端運算單搞電容值轉換成薄膜厚度;; 數據資訊，以供瓣倾機可依據對魏騎訊即時改善 3 吹製係數。然而，此種薄膜量測裝置的缺點在於電容式感 測器10容易與塑料薄膜12直接接觸而磨耗，使電容式感 測器10降低使用壽命’且電容式感測器1〇也容易直接刮 傷塑料薄膜12，而降低塑料薄膜12的製作品質。 請參閱第2圖至第3圖所示，有鑑於前述缺失，市面 上因而發展出另一種於塑膠薄膜與感測器之間形成氣塾的 薄膜量測裝置，上述薄膜量測裝置設有一電容式感測器 20 ’並將電容式感測器20套設於一基座21上，且基座21 於電容式感測器20周緣環設複數個吹氣口 22，而基座21 於吹氣口 22後方裝設有一供連接吹氣裝置的進氣管23，讓 塑膠吹膜機於量測塑料薄膜25厚度時，可在電容式感測器 20與塑料薄膜25之間形成一由喷射氣流構成的氣場間隙 24，以防止電容式感測器2〇與塑料薄膜25直接接觸。然 而，此種習用薄膜量測裝置缺點在於，吹氣裴置所吹出的 空氣如果太大，容易與塑料薄膜25内部因吹製過程所產生 的空氣相互推擠，使塑料薄膜25與電容式感測器2〇之間 產生不穩定氣流而造成薄膜振動(如第2圖所示）；若吹氣裝 置所吹出的空氣為理想狀態時，塑料薄膜25與電容式感測 器20之間也會因多餘氣體無法排除，而使塑料薄膜25與 電容式感測器20之間造成膨服(如第3圖所示），以至於電 谷式感測器20所量測出的數據準確度受到影響。 【新型内容】 本創作之主要目的，旨在提供一種具有排氣結構的塑 膠吹膜量測機構，防止感測器與薄膜之間產生不穩定氣流 M425043 【圖式簡單說明】 第1圖係一種傳統塑膠薄膜的量測裝置圖； 第2圖係另一種薄膜量測裝置非理想狀態示意圖； 第3圖係第2圖之氣場間隙理想狀態示意圖； 第4圖係本創作於一較佳實施例的示意圖； 第5圖係本創作第4圖的分解示意圖； 第6圖係本創作第4圖A_A’方向的斷面示意圖； 第7圖係本創作第6圖的局部放大示意圖；以及 第8圖係本創作另一較佳實施例的斷面示意圖。 【主要元件符號說明】 10 •-電容式感測裔 11一固定座 12---塑料薄膜 20- -電容式感測益 21— 基座 22- --吹氣口 23— 進氣管 24…氣場間隙 25—塑料薄膜 31…感測裝置 32—基座 321—頂蓋 322…容置槽 323…套筒 M425043 324…開孔 325…底座 326…套孔 327—連通孔 33…進氣管 331…進氣孔 34…喷氣口 341…内凹空間 35…排氣結構 351…排氣通道 352…排氣孔 353…排氣連通孔 36—氣流空間 37…塑膠薄膜 38…氣場間隙= More convenient 'especially the change is an indispensable item in life, ^Bein thief Π Π 物 物 物 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Screw pressure, _ blowing _ blowing _ balloon tube, and then further processing f to make a knife, the factory also find film I to make a plastic bag of different size, thickness, shape ' (four) for various conditions, occasions. Considering the plastic wins, the Qingchao machine is blowing and shouting. Because the plastic raw materials are constantly pushed under the blowing process, the thickness of the plastic film can not reach the ship's thoughts, such as blowing a plastic bag that does not meet the requirements. Become a waste product's waste of plastic raw materials, so that the production cost is increased, it is to measure the thickness of the film to facilitate immediate change (10) film thickness in the process of a must pig 66. < ^ Please refer to Fig. 1 'The measuring device of the traditional plastic film is provided with a capacitive sensor 10' and the above capacitive sensor 1Q is sleeved on the fixing seat 11 to be a capacitive sensor 10 directly contact the plastic film 12 to measure its capacitance value' and then convert the capacitance value into film thickness through the back-end operation single;; data information, for the valve tilting machine can improve the 3 blowing coefficient according to Wei Qi. However, the film measuring device has a disadvantage in that the capacitive sensor 10 is easily worn by direct contact with the plastic film 12, so that the capacitive sensor 10 has a reduced service life, and the capacitive sensor 1 is also easy to directly scrape. The plastic film 12 is damaged, and the quality of the plastic film 12 is lowered. Referring to Figures 2 to 3, in view of the aforementioned shortcomings, another film measuring device for forming a gas gap between a plastic film and a sensor has been developed, and the film measuring device is provided with a capacitive type. The sensor 20 is disposed on a pedestal 21, and the pedestal 21 is provided with a plurality of air blowing ports 22 around the periphery of the capacitive sensor 20, and the pedestal 21 is at the air blowing port 22 An intake pipe 23 for connecting the air blowing device is arranged at the rear, and when the plastic film blowing machine measures the thickness of the plastic film 25, a jet airflow can be formed between the capacitive sensor 20 and the plastic film 25. The gas field gap 24 prevents the capacitive sensor 2A from coming into direct contact with the plastic film 25. However, such a conventional film measuring device has a disadvantage in that if the air blown by the air blowing device is too large, it is easy to push against the air generated by the blowing process inside the plastic film 25, so that the plastic film 25 and the capacitive feeling are made. An unstable airflow is generated between the detectors 2 to cause vibration of the film (as shown in Fig. 2); if the air blown by the air blowing device is in an ideal state, the plastic film 25 and the capacitive sensor 20 are also Since the excess gas cannot be removed, the plastic film 25 and the capacitive sensor 20 are caused to expand (as shown in FIG. 3), so that the accuracy of the data measured by the electric valley sensor 20 is affected. influences. [New content] The main purpose of this creation is to provide a plastic blown film measuring mechanism with a venting structure to prevent unstable airflow between the sensor and the film. M425043 [Simplified illustration] Figure 1 is a Figure 2 is a schematic diagram of a non-ideal state of another film measuring device; Figure 3 is a schematic view of the ideal state of the gas field gap in Figure 2; Figure 4 is a preferred embodiment of the present invention. Fig. 5 is an exploded perspective view of Fig. 4 of the present invention; Fig. 6 is a schematic cross-sectional view taken along line A_A' of Fig. 4 of the present creation; and Fig. 7 is a partially enlarged schematic view of Fig. 6 of the present creation; Figure 8 is a schematic cross-sectional view of another preferred embodiment of the present invention. [Main component symbol description] 10 •- Capacitive sensing type 11 fixed seat 12---Plastic film 20--Capacitive sensing benefit 21-Base 22--Blowing port 23- Intake pipe 24...Gas Field gap 25 - plastic film 31 ... sensing device 32 - base 321 - top cover 322 ... receiving groove 323 ... sleeve M425043 324 ... opening 325 ... base 326 ... sleeve hole 327 - communication hole 33 ... intake pipe 331 ...air intake hole 34...air jet port 341...recessed space 35...exhaust structure 351...exhaust passage 352...exhaust hole 353...exhaust communication hole 36-flow space 37...plastic film 38...gas field gap