M424306 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種封口機，特別係關於一種藉由膜料張力調整機構對 膜料之張力加以調整之封口機者。 【先前技術】 在人口密集度高的地區，市面上的外賣食品、飲料選擇眾多，其中為 了保存風味、便於運輸等目的，常需將盛裝有食品或飲料的容器利用封口 機將膜料封壓於容器開口，藉此形成一密閉空間以保存食品或飲料。 習用封口機如TW M336222號新型專利之圖一所示，乃包括有容器承 座、膜料收納機構及壓膜機構等，主要係利用膜料收納機構帶動膜料移動， 並利用壓膜機構將膜料壓封在容器盛座上的容器開口，達成封膜動作β 然而，實用上常見的問題之一，是膜料的張力在壓膜機構作動過程中 會有變化’例如’在壓膜過程中，壓膜機構會下壓膜料，而使膜料繞行路 徑變長’但此時膜料兩端受到固定而未改變位置，導致膜料本身會受到拉 伸產生形變，經常造成容器上的封膜不平整、有縐褶的問題；又，膜料經 壓印後會產生穿孔，該穿孔段落所能承受的變形量降低，因此在壓印過程 中容易因拉伸過度而斷裂，此時使用者便需將膜料自斷裂處重新繞設固定 於膜料回收輪上，而該問題也著實困擾使用者。 上述Μ336222號新型專利雖對封口機結構進行改良，惟其僅針對如何控 制膜料輸出之長度加以著墨，但並未涉及壓膜過程時如何加以維持膜料張 力在一預定範圍，因此仍無法有效克服上述技術難題。 有鑑於此，如何提供一種可維持壓膜時膜料張力之封口機，自係本業 3 M424306 界人士亟待努力之方向。 【新型内容】 本創作之主要目的係提供-種騎張力在壓膜過程中可受到調配而易 於加工的封口機及其膜料張力調整機構。 本創作之另一目的係提供一種因張力分佈平均而使膜料不易斷裂之封 口機及其膜料張力調整機構。 為了達成上述目的所提供之膜料張力調整機構係供設置於一封口機， 該封口機包括-膜料供給輪…顧裝置及—膜料回收輪，該膜料供給輪 上繞設有膜料，該膜料更經由該壓膜裝置而延伸至該膜料回收輪，該壓膜 裝置則具有一預備狀態及一壓膜狀態，該膜料張力調整機構包括一張力調 整輪及一彈性模組，該張力調整輪係供設置於該膜料供給輪及壓膜裝置之 間，並供該膜料包覆於該張力調整輪之部分滾輪表面，且該膜料更將該張 力調整輪分成一膜料繞行側及一非膜料繞行側，該彈性模組係提供該張力 調整輪朝該膜料繞行側復位之彈性復力。其中，當該壓膜裝置由預備狀態 轉變成壓膜狀態時，該張力調整輪係受膜料帶動而朝非膜料繞行側之方向 移動，並同時增加該彈性模組之彈性位能；而當該壓膜裝置由壓膜狀態轉 變成預備狀態時，該彈性模組之彈性位能釋放而帶動張力調整輪朝膜料繞 行側之方向移動，藉此令膜料受張力調整輪之帶動而調整膜料之張力。 本創作藉由上述設計，預期可達成之主要功效在於，膜料在壓膜過程 中，特別係在膜料供給輪及膜料回收輪未轉動時，其繞設於封口機的長度 是固定的，因此藉由張力調整輪之可移動性，佐以彈性模組之復位設計， 使得膜料在壓印過程中的張力維持在一定範圍，並令膜料不至於變形或令 4 M424306 其變形量降至容許範圍内，從而有效避免或至少減少在壓封後，容器上的 膜料產生不平整、有縐褶的問題； 另一方面，由於膜料經壓印後，其上會形成若干穿孔，並被收捲至膜 料回收輪加以回收’以往具有穿孔的膜料段落易因壓印時張力驟升，導致 穿孔處的膜料拉伸過大而容易斷裂，但經由本創作之膜料張力調整機構適 當地在壓印過程中釋放部分膜料長度後，將有助於減少壓印過程中膜料的 拉伸量，因而可避免或至少減緩膜料穿孔段落容易斷裂的問題，從而進一 步改善習知缺失。 【實施方式】 為便於說明本創作於上述新型内容一棚中所表示的中心思想，兹以具 體實施例表達。實施例中各種不同物件係按適於說明之比例、尺寸、變形 量或位移量而描繪’而非按實際元件的比例予以繪製，合先敘明。且以下 的說明中’類似的元件是以相同的編號來表示。 請參考第一至四圖。在本創作之較佳實施例中，一種封口機丨包括一膜 料供給輪2、一容器承載單元3、一壓膜裝置4、一膜料回收輪5及一膜料張 力調整機構6，上皆元件係設置於一機台8上，機台8設有若干控制組件以調 控該封口機1之作動。該封口機1係用以將繞設其上的膜料7壓印於一容器 (未螬示）之開口。 更明確地說，該膜料供給輪2係供膜料7繞設，該膜料7係行經該膜料張 力調整機構6及該壓膜裝置4後，另端更繞設於該膜料回收輪5之上，該容器 承載單元3係供一容器承載其上，該壓膜裝置4則具有一預備狀態及一壓膜 狀態’而供壓印膜料7於容器之開口並加以裁切以對應該開口之輪廟，該膜 5 M424306 料回收輪5則供回收經壓膜裝置4處理之膜料7。 在本創作之較佳實施例中，該膜料張力調整機構6則包括一對側板1〇、 一張力調整輪20、一輔助輪30、一彈性模組4〇及一對定位單元％。 該對側板10係並排定位於該封口機1上，並可供膜料7穿繞於該對側板 10之間’且各該側板10具有一長槽n及一軸孔12。 該張力調整輪20係設置於該膜料供給輪2及壓膜裝置4之間，並供該膜 料7包覆於其部分部分滾輪表面，且該膜料7更將該張力調整輪2〇分成一膜 料繞行側21及一非膜料繞行側22 (如第六圖）；較佳者，該張力調整輪2〇 之兩側具有轴桿段23，該二軸桿段23係分別可移動地設於該對側板1〇之長 槽11内，從而可在該長槽11之延伸範圍内滑移。 該輔助輪30係設置於該對側板10之間，其轴31係穿設於該軸孔12内。 在該膜料7的繞設行程中，該輔助輪3〇係介於膜料供給輪2及張力調整輪2〇 之間’並用以改變膜料7之繞行方向。 該彈性模組40係提供該張力調整輪2〇朝該膜料繞行側2〗復位之彈性復 力，而在本較佳實施例中，該彈性模組40包括一對彈簧41 ,各該彈簧41之 一端係連接於其中一側板1〇，例如可在側板1〇上設有如圖式所示之螺絲13 而供彈簧41 一端掛設，或者可直接在側板10上形成掛孔（未繪示）而供彈 簧41連接其上；該彈簧41之另端則連接於該張力調整輪2〇之其中一軸桿段 23 ’從而提供該張力調整輪2〇可相對側板1〇位移之彈性復力。 該對定位單元50主要可用以避免彈簧41與張力調整輪2〇脫離連結關 係，並可用以將張力調整輪20定位於該對側板10之間；較佳者，各該定位 單7L50具有一連接件51及一定位銷52，該連接件51係供連接於該張力調整 M424306 輪20之其巾—贿段23 .可令财娜啊細及一徑向孔 512，該轴向孔511係供該轴桿段23穿設，該徑向孔512則與該抽向孔川連 通’而該定位觸設於雜向孔512内並迫緊位於軸·5ΐι中的抽桿 段23 *> 其中’；歸7哪1始被裝設時，係自膜料供給輪2繞賴料張力調整 機構6及若干其它元件後而@定於騎回收輪5，此時即可藉由彈性模組4〇 帶動張力触輪20誠舰_21方向復蚊雛，而使鋪7可具有較高 的張力而維持在緊繃的狀態。 請參考第五、六圖。本創作之封口機〗之作動過程中，當該壓膜裝置4 由預備狀態轉變成壓膜狀態時，其會將位於下方的膜料7下壓，導致位於壓 膜裝置4下方的膜料7繞行路徑變長，因此該張力調整輪2〇會受膜料7帶動而 朝非膜料繞行側22之方向移動，並同時增加該彈性模組4〇之彈性位能，其 用意係在膜料張力調整機構6内釋放部分膜料7長度，因此可避免膜料7本身 受壓膜裝置4壓迫且整體繞行路徑增加而有過度拉伸變形等情事發生。 請接著參考第七、八圖。當該壓膜裝置4由壓膜狀態轉變成預備狀態 時，該彈性模組40之彈性位能釋放而帶動張力調整輪2〇朝膜料繞行側21之 方向移動，藉此令膜料7受張力調整輪20之帶動而調整膜料7之張力，進而 避免膜料7鬆弛而影響後續壓封作業。 由上可知，本創作藉由膜料張力調整機構中，張力調整輪與彈性模組 之適當配置，可令膜料在壓印或預備期間都能維持在適當的張力範圍，避 免其過度伸張或鬆弛，從而可改善習用技藝中常見容器封口臈料不平整的 問題，俾利符合使用者之需求。 7 M424306 雖本創作是以一較佳實施例作說明，但精於此技藝者能在不脫離本創 作精神與範疇下作各種不同形式的改變。以上所舉實施例僅用以說明本創 作而已’非用以限制本創作之範圍。舉凡不違本創作精神所從事的種種修 改或變化’俱屬本創作意欲保護之範疇。 【圖式簡單說明】 第一圓係本創作封口機上繞設有膜料之立體示意圖。 第二圖係本創作膜料張力調整機構之前視圖β 第三圖係本創作膜料張力調整機構之立體圖。 第四圖係本創作膜料張力調整機構之分解圖。 第五圖係本創作封口機之使用狀態前視示意圖（一）。 第六圖係本創作膜料張力調整機構之使用狀態剖面示意圖（一）。 第七圖係本創作封口機之使用狀態前視示意圖（二）。 第八圖係本創作膜料張力調整機構之使用狀態剖面示意圖（二）。 【主要元件符號說明】 膜料繞行側21 非膜料繞行侧22 轴桿段23 輔助輪30 軸31 彈性模組40 彈簧41 定位單元50 封口機1 膜料供給輪2 容器承載單元3 壓膜裝置4 膜料回收輪5 膜料張力調整機構6 膜料7 機台8 8 M424306 側板10 連接件51 長槽11 軸向孔511 軸孔12 徑向孔512 定位銷52 螺絲13 張力調整輪20M424306 V. New description: [New technical field] This creation is about a sealing machine, especially for a sealing machine that adjusts the tension of the film by the film tension adjusting mechanism. [Prior Art] In areas with high population density, there are many types of take-away foods and beverages on the market. In order to preserve flavor and facilitate transportation, it is often necessary to seal the film with a sealing machine. The container is opened, thereby forming a confined space to hold the food or beverage. The conventional sealing machine, as shown in Figure 1 of the new patent of TW M336222, includes a container holder, a film storage mechanism and a laminating mechanism, etc., mainly by using a film storage mechanism to drive the film material to move, and using a laminating mechanism The film material is sealed in the container opening on the container seat to achieve the sealing action β. However, one of the common problems in practical use is that the tension of the film material changes during the operation of the laminating mechanism 'for example' in the laminating process In the middle, the laminating mechanism will press down the film material, and the film material will be lengthened around the path. However, at this time, the film material is fixed at both ends without changing the position, so that the film material itself is deformed by stretching, which often causes the container to be deformed. The sealing film is not flat and has the problem of creases; in addition, the film material is perforated after being embossed, and the amount of deformation that the perforated section can withstand is reduced, so that it is easy to break due to excessive stretching during the embossing process. When the user needs to re-wrap the film from the break to the film recovery wheel, the problem is also plagued by the user. Although the above-mentioned new patent No. 336222 improves the structure of the sealing machine, it only inks how to control the length of the film output, but does not involve how to maintain the film tension in a predetermined range during the laminating process, so it cannot be effectively overcome. The above technical problems. In view of this, how to provide a sealing machine that can maintain the tension of the film during lamination, and the people in the industry 3 M424306 are in urgent need of efforts. [New content] The main purpose of this creation is to provide a sealing machine and a film tension adjusting mechanism which can be adjusted and easy to process during the lamination process. Another object of the present invention is to provide a sealing machine and a film tension adjusting mechanism which are resistant to breakage of a film due to an average tension distribution. In order to achieve the above object, the film tension adjusting mechanism is provided in a bag machine, and the sealing machine includes a film supply wheel, a device and a film recovery wheel, and a film material is wound around the film supply wheel. The film material is further extended to the film recovery wheel via the film pressing device, the film pressing device has a ready state and a filming state, and the film tension adjusting mechanism comprises a force adjusting wheel and an elastic module The tension adjusting wheel is disposed between the film feeding wheel and the film pressing device, and the film material is coated on a part of the roller surface of the tension adjusting wheel, and the film material further divides the tension adjusting wheel into one The film bypass side and a non-film material bypass side, the elastic module provides an elastic recombination force of the tension adjusting wheel to the bypass side of the film. Wherein, when the film pressing device is changed from the preliminary state to the lamination state, the tension adjusting wheel is driven by the film material to move toward the non-film material bypass side, and simultaneously increases the elastic potential energy of the elastic module; When the laminating device is changed from the laminating state to the preparatory state, the elastic position of the elastic module can be released to drive the tension adjusting wheel to move toward the bypass side of the film material, thereby causing the film material to be subjected to the tension adjusting wheel. Drive to adjust the tension of the film. According to the above design, the main effect that the achievable achievable is that the film material is fixed in the laminating process, especially when the film material supply wheel and the film material recovery wheel are not rotated, and the length of the film winding machine is fixed. Therefore, by the mobility of the tension adjusting wheel, the elastic design of the elastic module is maintained, so that the tension of the film during the imprinting process is maintained within a certain range, and the film material is not deformed or the deformation amount of the 4 M424306 is made. Dropped within the allowable range, thereby effectively avoiding or at least reducing the problem of unevenness and crease of the film on the container after pressure sealing; on the other hand, since the film is embossed, a number of perforations are formed thereon. And is taken up to the film recovery wheel for recycling. In the past, the film section with perforation was easy to be swelled due to the tension during the embossing, which caused the film at the perforation to stretch too much and easily break, but the film tension was through the creation. When the adjustment mechanism properly releases a part of the film length during the embossing process, it will help to reduce the amount of film stretch during the embossing process, thereby avoiding or at least slowing down the problem that the film perforation section is easily broken. Thereby further improving the conventional missing. [Embodiment] In order to facilitate the explanation of the central idea expressed in the above novel content, the present invention is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the scale of the actual elements. In the following description, similar elements are denoted by the same reference numerals. Please refer to Figures 1 to 4. In a preferred embodiment of the present invention, a sealing machine includes a film supply wheel 2, a container carrying unit 3, a filming device 4, a film recovery wheel 5, and a film tension adjusting mechanism 6, All components are disposed on a machine table 8, and the machine 8 is provided with a plurality of control components to regulate the operation of the sealing machine 1. The sealing machine 1 is for embossing the film 7 wound thereon to an opening of a container (not shown). More specifically, the film supply wheel 2 is wound around the film material 7, and the film material 7 passes through the film tension adjusting mechanism 6 and the film forming device 4, and the other end is further wound around the film material. Above the wheel 5, the container carrying unit 3 is provided for carrying a container thereon, and the laminating device 4 has a ready state and a lamination state for the imprinting film 7 to be cut at the opening of the container to be cut. The film 5 M424306 material recovery wheel 5 is used to recover the film material 7 processed by the laminating device 4, corresponding to the wheel temple. In the preferred embodiment of the present invention, the film tension adjusting mechanism 6 includes a pair of side plates 1 , a tension adjusting wheel 20 , an auxiliary wheel 30 , an elastic module 4 , and a pair of positioning units %. The pair of side plates 10 are positioned side by side on the sealing machine 1 and allow the film material 7 to pass between the pair of side plates 10 and each of the side plates 10 has a long groove n and a shaft hole 12. The tension adjusting wheel 20 is disposed between the film feeding wheel 2 and the laminating device 4, and the film material 7 is coated on a part of the roller surface thereof, and the film material 7 further adjusts the tension adjusting wheel 2 Divided into a film bypass side 21 and a non-film material bypass side 22 (as shown in the sixth figure); preferably, the tension adjusting wheel 2 has a shaft section 23 on both sides thereof, the two-axis section 23 They are respectively movably disposed in the long slots 11 of the pair of side plates 1 so as to be slidable within the extension of the long slots 11. The auxiliary wheel 30 is disposed between the pair of side plates 10, and the shaft 31 is bored in the shaft hole 12. In the winding stroke of the film 7, the auxiliary wheel 3 is interposed between the film supply wheel 2 and the tension adjusting wheel 2' and is used to change the direction in which the film 7 is wound. The elastic module 40 provides an elastic recombination force of the tension adjusting wheel 2 toward the winding side 2 of the film. In the preferred embodiment, the elastic module 40 includes a pair of springs 41, each of which One end of the spring 41 is connected to one of the side plates 1 〇, for example, a screw 13 as shown in the figure can be provided on the side plate 1 而 for the end of the spring 41 to be hung, or a hanging hole can be directly formed on the side plate 10 (not drawn And the spring 41 is connected thereto; the other end of the spring 41 is connected to one of the tension adjusting wheels 2 从而 to provide an elastic compounding force of the tension adjusting wheel 2 〇 relative to the side plate 1 〇 . The pair of positioning units 50 can be mainly used to prevent the spring 41 from being disconnected from the tension adjusting wheel 2, and can be used to position the tension adjusting wheel 20 between the pair of side plates 10; preferably, each positioning unit 7L50 has a connection. a member 51 and a positioning pin 52 for connecting to the towel-brittle portion 23 of the tension adjustment M424306 wheel 20. The yoke can be made thin and a radial hole 512 is provided for the axial hole 511 The shaft section 23 is bored, and the radial hole 512 is in communication with the pumping hole. The positioning is disposed in the miscellaneous hole 512 and is forced to be in the shaft section 5*> When the first 7 is installed, the film supply roller 2 is wound around the tension adjusting mechanism 6 and a plurality of other components, and then set to the riding recovery wheel 5, by which the elastic module 4 can be used. The 张力 张力 张力 张力 张力 张力 张力 _ _ _ 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 Please refer to the fifth and sixth figures. During the operation of the sealing machine of the present invention, when the film forming device 4 is changed from the preliminary state to the lamination state, the film material 7 located below is pressed down, resulting in the film material 7 located under the laminating device 4. The winding path becomes longer, so the tension adjusting wheel 2〇 is driven by the film material 7 to move toward the non-film material bypass side 22, and at the same time increases the elastic potential energy of the elastic module 4, which is intended to be The length of the portion of the film 7 is released in the film tension adjusting mechanism 6, so that the film 7 itself can be prevented from being pressed by the filming device 4 and the overall bypass path is increased to cause excessive stretching deformation. Please refer to the seventh and eighth figures. When the laminating device 4 is changed from the lamination state to the preliminary state, the elastic position of the elastic module 40 can be released to drive the tension adjusting wheel 2 to move toward the winding side 21 of the film, thereby making the film 7 The tension of the film material 7 is adjusted by the tension adjusting wheel 20, thereby preventing the film material 7 from being slack and affecting the subsequent pressure sealing operation. It can be seen from the above that the flexible arrangement of the tension adjusting wheel and the elastic module in the film tension adjusting mechanism can maintain the film in an appropriate tension range during the imprinting or preparation period, and avoid excessive stretching or Relaxation, which can improve the problem of the irregularity of the common container sealing material in the conventional art, and meet the needs of the user. 7 M424306 Although the present invention has been described in terms of a preferred embodiment, it is obvious to those skilled in the art that various changes can be made without departing from the spirit and scope of the invention. The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. All kinds of modifications or changes that are not in violation of the spirit of this creation are all in the scope of this creative intention. [Simple description of the drawing] The first circular system is a three-dimensional schematic diagram of the film material wound around the creation sealing machine. The second figure is the front view of the film tension adjusting mechanism of the present invention. The third figure is a perspective view of the film tension adjusting mechanism of the present invention. The fourth figure is an exploded view of the tension adjusting mechanism of the film. The fifth picture is a front view of the use state of the creation sealing machine (1). The sixth figure is a schematic cross-sectional view of the state of use of the film tension adjusting mechanism of the present invention (1). The seventh picture is a front view of the use state of the creation sealing machine (2). The eighth figure is a schematic cross-sectional view of the use state of the film tension adjusting mechanism of the present invention (2). [Main component symbol description] Membrane bypass side 21 Non-film material bypass side 22 Shaft section 23 Auxiliary wheel 30 Shaft 31 Elastic module 40 Spring 41 Positioning unit 50 Sealing machine 1 Membrane supply wheel 2 Container carrying unit 3 Pressure Membrane device 4 Membrane recovery wheel 5 Membrane tension adjustment mechanism 6 Membrane material 7 Machine 8 8 M424306 Side plate 10 Connector 51 Long groove 11 Axial hole 511 Axle hole 12 Radial hole 512 Locating pin 52 Screw 13 Tension adjusting wheel 20