200418708 (1) 玖、發明說明 【發明所屬之技術領域） 本發明係關於製作成，在包裝裝置等，將塑膠薄膜等 的薄膜從薄膜捲筒式輥料以使之具有預定張力的張緊狀態 下能夠拉出並供給之方式從薄膜捲筒式輥料的薄膜供給方 法及薄膜供給裝置。 【先前技術】 在各種包裝裝置，多冀望將包裝用的薄膜從薄膜捲筒 式輥料拉出而在預定的一定張力下供給。特別係使用所實 施各種印刷的包裝用薄膜的情況，是必需要使其印刷與包 裝品之位置一致，在包裝過程產生偏差時，雖然通常設置 有將其校正之將薄膜的移送調整的機構，可是設置有如此 之調整機構的情況，當所供給的薄膜之張力未達事先決定 的一定値時，就有其調整機構無法發揮功能之問題。 作爲爲了對所供給的薄膜給予張力所以過去所進行的 方法之一，有在支持薄膜捲筒式輥料的捲筒式輥軸附設帶 式刹車器，而從捲筒式輥料拉出薄膜的方式進行。 然而，該過去的帶式刹車器，係因相對捲筒式輥軸經 常給予一定之刹車力，所以隨著從捲筒式輥料拉出有薄膜 而捲筒式輥料的直徑變化時，隨著捲筒式輥料之直徑變化 ，而對從捲筒式輥料所拉出的薄膜作用之張力將會變化， 拉出有薄膜而捲筒式輥料的直徑變成愈小時，對薄膜變成 作用大的張力。 - 4 - (2) (2)200418708 不論捲筒式輥料之直徑的變化，爲了將從薄膜捲筒式 輥料所拉出而供給的薄膜之張力保持一定’所以在過去所 進行的方法之一，有安裝藉由改變電磁力而可改變產生的 刹車力之可變式刹車器，對應薄膜捲筒式輥料的直徑變化 而改變電磁力而藉由改變對可變式刹車器給予之電量，來 對所拉出的薄膜使一定張力作用而改變刹車力之構成。 然而，該構成的裝置係在薄膜之移送速度爲一定的前 提下所構成，因爲當薄膜之移送速度變化時薄膜捲筒式輥 料的直徑之變化率會變化，所以對薄膜作用的刹車力會變 化’在將對薄膜作用之張力保持預定一定値是必需要再度 g周整。 因此，在該過去的裝置，具有每當改變薄膜之移送速 度之際’必需要調整其刹車力的大小之問題，而且在該過 去的裝置之刹車力的調整，是需要熟練和時間之作業。 【發明內容】 〔發明所要解決之課題〕 本發明係提供錯由對薄膜捲筒式輥料的旋轉給予制動 力並且將薄膜拉出，而將薄膜以張緊狀態下供給的情況， 即使薄膜捲筒式輥料之直徑改變，也能將事先決定的預定 之一定張力給予薄膜並且供給薄膜，而且，即使薄膜的供 給=度改變’也不需要每次調整張力，直接，從薄膜捲筒 认車比料經吊’fe予薄腠預定之張力’並且將薄膜拉出而可供 給的方式進行之薄膜供給方法及薄膜供給裝置來作爲課題 -5- (3) (3)200418708 〔爲了解決課題之手段〕 本發明係爲了解決前述課題，提供一種相對薄膜捲筒 式輥料給予制動力並且在張緊狀態下將薄膜拉出而供給的 薄膜之供給方法中，對應給予拉出薄膜的驅動力之驅動軸 的旋轉數、及薄膜捲筒式輥料的旋轉數之比的變化，來使 對前述薄膜捲筒式輥料給予前述制動力變化爲特徵的從薄 膜捲筒式輥料之薄膜供給方法。 在本發明的薄膜供給方法中，能夠從給予拉出薄膜之 驅動力的驅動軸之旋轉數和薄膜捲筒式輥料的旋轉數之比 的變化獲知薄膜捲筒式輥料之直徑的變化，對從薄膜捲筒 式輥料所拉出之薄膜，藉由給予對應其變化使之變化的制 動力而將薄膜拉出，即使隨著薄膜捲筒式輥料的消耗而薄 膜捲筒式輥料之直徑變化，也能夠對從薄膜捲筒式輥料所 拉出之薄膜經常使一定的張力作用。 而且，因爲將對薄膜捲筒式輥料的旋轉給予之制動力 ’藉由拉出薄膜用的驅動軸之旋轉數和薄膜捲筒式輥料的 旋轉數之比的變化而改變’所以即使爲了改變薄膜之拉出 速度而改變用來拉出薄膜的驅動軸之旋轉數，拉出其薄膜 用的驅動軸之旋轉數和薄膜捲筒式輥料的旋轉數之比，是 不會受其速度變化的影響而因爲該比只是藉由薄膜捲筒式 輕料之直徑的變化而改變，所以即使改變薄膜之拉出速度 ’不論其拉出速度的變化，而能夠因應捲筒式輥料之直徑 -6 - (4) (4)200418708 變化，來使薄膜的張力成爲一定而可將所變化之制動力給 予薄膜捲筒式輥料。 並且’本發明係提供作爲已解決前述課題的薄膜供給 裝置，在具有：給予從薄膜捲筒式輥料將薄膜拉出的驅動 力之驅動軸 '及將所拉出的薄膜保持張緊狀態而相對於前 述薄膜捲筒式輥料的旋轉給予制動力之張緊給予裝置的薄 膜供給裝置’前述張緊給予裝置是具有：在所供給之電量 變化時制動力可改變的可變式刹車器、及將相對於同可變 式刹車器供給之電量對應前述驅動軸的旋轉數與前述薄膜 捲筒式輥料之旋轉數的比之變化而改變的刹車控制裝置爲 特徵之從薄膜捲筒式輥料的薄膜供給裝置。 在該薄膜供給裝置，將從薄膜捲筒式輥料所拉出的薄 膜作爲使之保持張緊狀態而給予制動力的張緊給予裝置， 採用在所供給的電量變化時制動力可變之可變式刹車器， 同時藉由刹車控制裝置，來將供給在其可變式刹車器的電 量’因爲按照給予從薄膜捲筒式輥料將薄膜拉出的驅動力 之驅動軸的旋轉數與薄膜捲筒式輥料的旋轉數之比的變化 而改變’故能與從薄膜捲筒式輥料之薄膜拉出速度無關， 按照薄膜捲筒式輥料的直徑變化來將所改變之制動力給予 薄膜捲筒式輥料，對從捲筒式輥料所拉出的薄膜能夠經常 使預定的一定張力作用，製作成能實施由前述本發明的薄 膜供給方法之裝置。 作爲在本發明的薄膜供給裝置採用之刹車控制裝置， 在採用有檢測薄膜捲筒式輥料的旋轉數之第1脈衝產生器 -7- (5) (5)200418708 、檢測給予從薄膜捲筒式輥料拉出薄膜的驅動力之驅動軸 的旋轉數之第2脈衝產生器、及將按照第2脈衝產生器產 生的脈衝數與前述第1脈衝產生器產生的脈衝數之比的變 化而將所變化之電量產生的變換器之構成者時，能夠將給 予所拉出的薄膜之制動力，不論薄膜捲筒式輥料的直徑變 化且經常成爲一定而正確地數位控制較佳。 如此’根據本發明之薄膜供給裝置，能夠將前述本發 明的薄膜供給方法正確地且容易地實施，能提供小型構成 之裝置。 【實施方式】 以下’將根據本發明之薄膜供給方法及裝置圖示的一 實施形態具體地說明。 而且’以下說明的實施形態，係在容器充塡了物品之 後’在其容器之開口部覆蓋塑膠薄膜製的薄膜，並爲了將 容器之邊緣和其薄膜的重疊部密封，所以本發明適用在將 塑膠薄膜製之薄膜從薄膜捲筒式輥料，藉由從容器包裝裝 置側的驅動力，使之以預定的張力狀態拉出而供給的方式 來進行的情況。 圖1中，1係連續的輸送帶，橫掛在鏈輪2、3的周 圍，該輪送帶1是將充塡物品並包裝之容器4以預定間隔 在將開口部向上之狀態下保持而連續地搬運。 在藉由輸送帶1來搬運的容器4是讓從薄膜捲筒式輥 料5拉出並捲回的塑膠薄膜製之薄膜6覆蓋在容器4的開 -8- (6) (6)200418708 口部上，來製造有在容器4之邊緣部密封且盒裝之商品。 從薄膜捲筒式輥料5所拉出的薄膜6是以經由多數個 引導滾輪7而覆蓋在容器4的開口部上的方式所引導。 在將薄膜6在容器4之邊緣部進行密封，因能採用在 該技術領域眾所周知的適當方法，爲了簡化其密封機構等 之說明所以省略圖示，而且省略其說明。 連續的輸送帶1是以從驅動軸8之動力經由鏈條9、 驅動輪1 〇、及鏈輪3所驅動，在容器4的邊緣部所密封 之塑膠薄膜製的薄膜6是藉由從該驅動軸8之驅動力來從 薄膜捲筒式輥料5拉出。 一方面’在支持薄膜捲筒式輥料5的捲筒式輥軸是安 裝有制動輪1 1，使從薄膜捲筒式輥料5所捲回的薄膜成 爲張緊狀態，經由該制動輪Π，藉由將制動力給予在與 制動輪Π同軸的捲筒式輥軸，而對薄膜捲筒式輥料5給 予制動力。 亦即’制動輪1 1係經由鏈條]3來與可變式刹車器 1 2連結，對其旋轉以施加制動力的方式所構成。 該可變式刹車器1 2係藉由改變所供給的電量（電壓 或電流）而改變磁力，形成與其對應而其制動力變化的構 成，而且以電磁刹車器（ρ 〇 w d e r b r e a k )、磁滯刹車器（ hysteresis break)等名稱所市售，能適當地選擇而採用這 些。 在安裝有驅動軸8、及制動輪1 1之捲筒式輥軸是分 別安裝有旋轉編碼器等的旋轉數檢測器（未圖示）。藉由 -9- (7) (7)200418708 此等旋轉編碼器，來對應驅動軸8和捲筒式輥軸的旋轉數 而讓脈衝產生，而且以虛線所示的方式傳送至脈衝計數器 1 4。在脈衝計數器1 4是計算對於從安裝在驅動軸8的旋 轉編碼器等之旋轉數檢測器的脈衝、及從安裝在捲筒式輥 軸的旋轉編碼器等之旋轉數檢測器的脈衝之比。 讓在脈衝計數器1 4藉由脈衝之比來計算的驅動軸8 與捲筒式輥軸的旋轉數之比傳至數位/類比變換器〗5， 在數位/類比變換器1 5是產生有對應其旋轉數比的大小 之電壓。讓在數位/類比變換器1 5所產生的電壓輸出傳 送至變換器i 6而讓對應其輸出之電量傳送至可變式刹車 器1 2 ’而且對應其電量的大小之刹車力是藉由可變式刹 車器1 2所產生。 而且，藉由可變式刹車器1 2所給予的刹車力之大小 ’係事先決定薄膜捲筒式輥料的直徑變化和相對於從其直 徑變化的薄膜捲筒式輥料所拉出之薄膜而以給予預定的張 力之方式應給予之制動力的變化，對於產生其變化之制動 力的可變式刹車器丨2藉由給予變化的電量所調整。 如此’可變式刹車器1 2是因產生對應於從分別安裝 在驅動軸8及捲筒式輥軸的旋轉編碼器等之旋轉數檢測器 的脈衝比之變化的大小之刹車力，所以當讓薄膜消耗而隨 者薄g吴捲筒式輕料5的直徑減小而使捲筒式輥軸的旋轉數 增加時’從可變式刹車器1 2給予捲筒式輥軸之制動力會 減小’而且從薄膜捲筒式輥料5捲回並給予於所供給的薄 月吴之張力是以成爲預定的一定値之方式所控制。 -10- (8) (8)200418708 如上述，可變式刹車器1 2是因產生對應於驅動軸8 及捲筒式輥軸的旋轉數之比的變化之大小的制動力，所以 即使爲了改變容器之包裝速度而改變薄膜6的移送速度並 且驅動軸8及捲筒式輥軸之旋轉數皆改變，驅動軸8及捲 筒式輥軸的旋轉數之比是不受由其旋轉數的變化之影響， 而且對應於藉由薄膜捲筒式輥料5的直徑變化之旋轉數之 比的變化而變化之刹車是藉由可變式刹車器1 2所產生， 藉此’對於所拉出的薄膜而給予有一定之制動力。 因此’將不需要在每次改變包裝速度的時候，對從薄 膜捲筒式輥料5捲回拉出而供給的薄膜給予之張力是以成 爲預定的一定値之方式調整給予薄膜捲筒式輥料5之制動 力。 在以上說明的實施形態之容器包裝裝置，如表1所示 將包裝速度設定爲每小時1 200個，將給予所拉出的薄膜 之張力設定爲0.61 84/kgf後，使其包裝速度變化成每小時 22 00個和3 600個的情況，將對薄膜所給予的張力等之測 定値，分別顯示在表2、表3。 如在此等之表1〜表3所示，即使改變拉出速度，也 可知在薄膜給予有預定之一定張力。 -11 - 200418708 【表1】 包裝速度1 200個/h 捲筒式輥料直 徑（m m ) 與驅動軸之旋 轉數比 刹車轉矩 (k g f / c m ) 薄膜張力（kgf) 280 3.8480 4.3 290 0.6184 270 3.7105 4.1744 0.6184 260 3.5731 4.0198 0.6184 250 3.4357 3.8651 0.6184 240 3.2983 3.7105 0.6184 230 3.1608 3.5559 0.6184 220 3.0234 3.4013 0.6184 2 10 2.8860 3.2467 0.6184 200 2.7486 3.0921 0.6184 1 90 2.6111 2.9375 0.6 184 1 80 2.4737 2.7829 0.6 184 1 70 2.3363 2.6283 0.6184 1 60 2.1988 2.4737 0.6 184 1 50 2.0614 2.3191 0.6184 140 1 .9240 2.1645 0.6184 130 1.7866 2.0099 0.6184 120 1.6491 1.8553 0.6184 110 1.5117 1.7007 0.6184 100 1 .3 74 3 1.5461 0.6184 90 1.2368 1.3915 0.6184200418708 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a tension state in which a film such as a plastic film is rolled from a film roll in a packaging device and the like to have a predetermined tension. Film supply method and film supply device capable of pulling out and supplying from a film roll roll. [Prior art] In various packaging devices, it is desirable to pull out the packaging film from the film roll roll and supply it under a predetermined constant tension. In particular, in the case of using various printed packaging films, it is necessary to make the printing and packaging products consistent with each other. When there is a deviation in the packaging process, although a mechanism for correcting the film transfer adjustment is usually provided, However, in the case where such an adjustment mechanism is provided, when the tension of the supplied film does not reach a certain level determined in advance, there is a problem that the adjustment mechanism cannot function. As one of the methods performed in the past in order to apply tension to the supplied film, there is a method of attaching a belt brake to a reel roller supporting a film reel, and pulling the film from the reel. Way to proceed. However, the conventional belt brakes often provide a certain braking force to the reel rollers. Therefore, as the diameter of the reel rollers changes as the film is pulled out from the reel rollers, As the diameter of the roll-type roll material changes, the tension acting on the film pulled from the roll-type material will change. As the film is pulled out and the diameter of the roll-type roll material becomes smaller, the effect on the film becomes smaller. Great tension. -4-(2) (2) 200418708 Regardless of the diameter change of the roll type roll material, the tension of the film supplied to be pulled out from the film roll type roll material is kept constant. First, there are variable brakes that can change the braking force generated by changing the electromagnetic force, and the electromagnetic force is changed in response to the change in the diameter of the film roll roll material, and the amount of electricity given to the variable brake is changed. To apply a certain tension to the drawn film to change the composition of the braking force. However, the device of this configuration is constructed on the premise that the film transfer speed is constant. Because the rate of change of the diameter of the film roll roller material will change when the film transfer speed is changed, the braking force on the film will be changed. The change 'is necessary to maintain a predetermined tension on the film, and it is necessary to readjust the whole time. Therefore, the conventional device has a problem that it is necessary to adjust the braking force whenever the film transfer speed is changed, and adjusting the braking force of the conventional device requires skill and time. [Summary of the Invention] [Problems to be Solved by the Invention] The present invention provides a case where the film is supplied in a tensioned state by applying a braking force to the rotation of the film roll roll material and pulling the film out, even if the film is rolled. The change of the diameter of the drum roll material can also give a predetermined predetermined tension to the film and supply the film. Moreover, even if the film supply = degree change ', there is no need to adjust the tension each time, and the car can be recognized directly from the film roll. The film feeding method and the film feeding device that can be supplied by hanging the material through the 'fe to the thin film with a predetermined tension' and pulling out the film as a problem-5- (3) (3) 200418708 [To solve the problem Means] In order to solve the foregoing problem, the present invention provides a method for supplying a film that applies a braking force to a film roll type roll material and pulls the film in a tensioned state and supplies the film. The change in the ratio of the number of rotations of the drive shaft and the number of rotations of the film roll type roll material makes it possible to specifically change the braking force given to the film roll type roll material. The method of the film from the roll of film material supply roll. In the film supply method of the present invention, it is possible to know the change in the diameter of the film roll type roll material from the change in the ratio of the number of rotations of the drive shaft that gives the driving force to pull the film out to the number of rotation of the film roll type roll material. For the film pulled from the film roll roll material, the film is pulled out by giving a braking force corresponding to the change, even if the film roll roll material is consumed as the film roll roll material is consumed. The change in diameter can also often apply a certain tension to the film pulled from the film roll roll. Furthermore, the braking force given to the rotation of the film roll roll material is changed by the ratio of the number of rotations of the drive shaft for pulling out the film to the number of rotations of the film roll roll material. Changing the pull-out speed of the film changes the number of rotations of the drive shaft used to pull out the film. The ratio of the number of rotations of the drive shaft for pulling out the film to the number of rotations of the film roll roll material is not affected by its speed. The effect of the change is because the ratio is only changed by the change of the diameter of the film roll type light weight, so even if the film pull-out speed is changed, regardless of the change of the pull-out speed, it can respond to the diameter of the roll type roll material. -6-(4) (4) 200418708 changes to make the film tension constant and the changed braking force can be given to the film roll type roll material. In addition, the present invention provides a film supply device that solves the aforementioned problems, and includes a drive shaft that applies a driving force to pull a film from a film roll roll, and maintains the pulled film in a tensioned state. Film supply device for a tension supply device that applies a braking force to the rotation of the film roll type roll material. The aforementioned tension supply device includes a variable brake that can change the braking force when the supplied electric power changes, and A brake control device that changes the ratio of the number of rotations of the drive shaft and the number of rotations of the film roll type roller with respect to the amount of electricity supplied by the same variable brake is characterized by a film roll type roller material. Film supply device. In this film supply device, a film that is pulled out from a film roll roll is used as a tension application device that applies a braking force while maintaining a tension state, and adopts a variable braking force when the amount of power supplied is changed. Type brake, and at the same time, the brake control device is used to supply the electric power to the variable brake, because the number of rotations of the drive shaft and the film roll are based on the driving force given to the film roll roll material to pull out the film. The change in the ratio of the number of rotations of the drum roll material is changed, so it can be independent of the film pulling speed from the film roll roll material, and the changed braking force is given to the film according to the diameter change of the film roll roll material. The roll-type roll material can always apply a predetermined constant tension to the film pulled out from the roll-type roll material to produce a device capable of implementing the film supply method of the present invention. As the brake control device used in the film supply device of the present invention, the first pulse generator which detects the number of rotations of the film roll-type roll material is adopted. 7- (5) (5) 200418708, which detects the feed from the film roll. The second pulse generator of the number of rotations of the driving shaft of the driving force for pulling the film out of the roll material, and according to the change in the ratio of the number of pulses generated by the second pulse generator to the number of pulses generated by the first pulse generator The converter who generates the changed amount of electricity can control the braking force given to the pulled out film, regardless of the diameter change of the film roll roll, and it is often a constant and accurate digital control. As described above, according to the film supply device of the present invention, the film supply method of the present invention described above can be accurately and easily implemented, and a device having a small configuration can be provided. [Embodiment] Hereinafter, an embodiment of a film supply method and apparatus according to the present invention will be specifically described. In addition, "the embodiment described below is after the container is filled with articles", and the opening of the container is covered with a film made of plastic film, and in order to seal the edge of the container and the overlapping portion of the film, the present invention is applicable to A film made of a plastic film is fed from a film roll type roll by a driving force from the container and packaging device side to be pulled out and supplied in a predetermined tension state. In FIG. 1, a series of continuous conveyor belts hang around the sprocket wheels 2 and 3. The belt conveyor 1 holds the container 4 filled with articles and packages at a predetermined interval with the opening portion upward. Carry continuously. The container 4 transported by the conveyor belt 1 is covered with a film 6 made of a plastic film which is pulled out from the film roll roll material 5 and rolled back, and covers the opening of the container 4 -8- (6) (6) 200418708 In addition, a boxed product which is sealed at the edge portion of the container 4 is manufactured. The film 6 drawn from the film roll roll 5 is guided so as to cover the opening of the container 4 via a plurality of guide rollers 7. In order to seal the film 6 on the edge portion of the container 4, a suitable method well known in the art can be used. In order to simplify the description of the sealing mechanism and the like, the illustration is omitted and the description is omitted. The continuous conveyor belt 1 is driven by the power from the drive shaft 8 via the chain 9, the drive wheels 10, and the sprocket 3. The film 6 made of a plastic film sealed at the edge of the container 4 is driven by the drive. The driving force of the shaft 8 is pulled out from the film roll roll material 5. On the one hand, the reel roller 11 supporting the film reel roll material 5 is equipped with a brake wheel 11 so that the film rolled back from the film reel roll material 5 becomes in a tension state, and passes through the brake wheel Π By giving a braking force to a reel-type roller shaft coaxial with the brake wheel Π, a braking force is given to the film-reel-type roller material 5. That is, the 'brake wheel 1 1 is connected to the variable brake 1 2 via a chain] 3, and is configured to be rotated to apply a braking force. The variable brake 12 changes the magnetic force by changing the amount of electric power (voltage or current) supplied, and forms a structure corresponding to the change in the braking force. The variable brake also uses electromagnetic brake (ρ 〇wderbreak) and hysteresis brake. Devices (hysteresis break) are commercially available, and these can be appropriately selected and used. The reel type roller shafts to which the drive shaft 8 and the brake wheels 11 are mounted are rotation number detectors (not shown) such as a rotary encoder. With -9- (7) (7) 200418708, these rotary encoders generate pulses corresponding to the number of rotations of the drive shaft 8 and the reel roller shaft, and transmit them to the pulse counter 1 in the manner shown by the dotted line. . The pulse counter 14 calculates the ratio of the pulses from a rotation number detector such as a rotary encoder mounted on the drive shaft 8 to the pulses from a rotation number detector such as a rotary encoder mounted on the reel roller shaft. . Let the ratio of the number of rotations of the drive shaft 8 and the reel-type roller shaft calculated by the pulse ratio in the pulse counter 14 to the digital / analog converter 5, and the digital / analog converter 15 corresponds to The voltage of its rotation ratio. The voltage output generated by the digital / analog converter 15 is transmitted to the converter i 6 and the electric power corresponding to the output is transmitted to the variable brake 1 2 ′, and the braking force corresponding to the magnitude of the electric power is Variant brakes 1 2 produced. Moreover, the magnitude of the braking force given by the variable brake 12 is determined in advance of the diameter change of the film roll roll material and the film pulled out from the film roll roll material with its diameter change. And the change of the braking force to be given in a manner of giving a predetermined tension is adjusted to the variable brake which generates the changed braking force by giving the changed electric quantity. In this way, the 'variable brake 12' generates a braking force corresponding to the magnitude of the pulse ratio change from a rotation number detector such as a rotary encoder mounted on the drive shaft 8 and the reel roller shaft, respectively. When the film is consumed and the thickness of the thin reel 5 is reduced, the number of rotations of the reel roller is increased, and the braking force given to the reel roller from the variable brake 12 will be increased. It is reduced and the tension which is wound back from the film reel roll material 5 and given to the supplied thin moon is controlled in such a manner as to become a predetermined constant. -10- (8) (8) 200418708 As described above, the variable brake 12 generates a braking force corresponding to a change in the ratio of the number of rotations of the drive shaft 8 and the reel-type roller shaft. Changing the packaging speed of the container to change the conveying speed of the film 6 and the number of rotations of the drive shaft 8 and the roll roller shaft are changed. The ratio of the number of rotations of the drive shaft 8 and the roll roller shaft is not affected by the number of rotations. The effect of the change, and the brake corresponding to the change in the ratio of the number of rotations by the change in the diameter of the film roll roll material 5 is generated by the variable brake 12 to thereby 'for pulling out The thin film gives a certain braking force. Therefore, it will not be necessary to adjust the tension given to the film roll roller in such a way that the film supplied from the film roll roller material 5 is pulled back and pulled out each time the packaging speed is changed. Braking force of material 5. In the container packaging device of the embodiment described above, as shown in Table 1, the packaging speed was set to 1,200 pieces per hour, and the tension applied to the drawn film was set to 0.61 84 / kgf, and the packaging speed was changed to In the case of 2200 and 3,600 per hour, the measurement of the tension applied to the film is shown in Tables 2 and 3, respectively. As shown in these Tables 1 to 3, even if the pull-out speed is changed, it can be seen that a predetermined tension is applied to the film. -11-200418708 [Table 1] Packaging speed 1 200 pcs / h Roller roll diameter (mm) and the number of rotations of the drive shaft Ratio of braking torque (kgf / cm) Film tension (kgf) 280 3.8480 4.3 290 0.6184 270 3.7105 4.1744 0.6184 260 3.5731 4.0198 0.6184 250 3.4357 3.8651 0.6184 240 3.2983 3.7105 0.6184 230 3.1608 3.5559 0.6184 220 3.0234 3.4013 0.6184 2 10 2.8860 3.2467 0.6184 200 2.7486 3.0921 0.6184 1 90 2.6111 2.9375 0.6 184 1 80 2.4737 2.7829 0.6 184 1 70 2.3363 2.6283 0.6184 1 60 2.1988 2.4737 0.6 184 1 50 2.0614 2.3191 0.6184 140 1 .9240 2.1645 0.6184 130 1.7866 2.0099 0.6184 120 1.6491 1.8553 0.6184 110 1.5117 1.7007 0.6184 100 1. 3 74 3 1.5461 0.6184 90 1.2368 1.3915 0.6184
-12- (10) (10)200418708 【表2】 包裝速度22 00個/h 捲筒式輥料直 徑（m m) 與驅動軸之旋 轉數比 刹車轉矩 (k g f / c m ) 薄膜張力（kgf) 280 3.84 8 0 4.3 290 0.6184 270 3.7105 4.1744 0.6184 260 3.5731 4.0198 0.6184 250 3.4357 3.8651 0.6184 240 3.2983 3.7105 0.6184 23 0 3.1608 3.5559 0.6184 220 3.0234 3.4013 0.6184 2 10 2.8860 3.2467 0.6184 200 2.7486 3.0921 0.6184 1 9 0 2.6111 2.9375 0.6184 1 80 2.473 7 2.7829 0.6184 1 70 2.3 3 63 2.6283 0.6184 160 2.1988 2.4 73 7 0.6184 1 50 2.0614 2.3 191 0.6184 140 1.9240 2.1645 0.6184 13 0 1.7866 2.0099 0.6184 120 1.6491 1.8553 0.6184 110 1.5117 1.7007 0.6184 1 00 1 .3 743 1.5461 0.6184 90 1.2368 1.3915 0.6184 -13- 200418708 【表3】 包裝速度3 600個/h 捲筒式輥料直 徑（mm) 與驅動軸之旋 轉數比 刹車轉矩 (k g f / c m) 薄膜張力（kgf) 280 3.8480 4.3 2 9 0 0.6184 270 3.7105 4.1744 0.6184 260 3.5731 4.0198 0.6184 250 3.4357 3.8 6 5 1 0.6184 240 3.2983 3.7105 0.6184 230 3.1608 3.5 5 5 9 0.6184 220 3.0234 3.4013 0.6184 2 10 2.8860 3.2467 0.6184 200 2.7486 3.0921 0.6184 1 90 2.6111 2.9375 0.6184 1 80 2.4 7 3 7 2.7829 0.6184 1 70 2.3363 2.6283 0.6184 1 60 2.1988 2.4 73 7 0.6184 1 50 2.0614 2.3 191 0.6184 140 1 .9240 2.1645 0.6184 1 30 1.7866 2.0099 0.6184 120 1.6491 1.8553 0.6184 110 1.5117 1.7007 0.6184 1 00 1.3743 1 .54 6 1 0.6184 90 1.2 3 6 8 1.3915 0.6184-12- (10) (10) 200418708 [Table 2] Packaging speed 22 00 pcs / h Roller roll diameter (mm) and drive shaft rotation ratio Brake torque (kgf / cm) Film tension (kgf) 280 3.84 8 0 4.3 290 0.6184 270 3.7105 4.1744 0.6184 260 3.5731 4.0198 0.6184 250 3.4357 3.8651 0.6184 240 3.2983 3.7105 0.6184 23 0 3.1608 3.5559 0.6184 220 3.0234 3.4013 0.6184 2 10 2.8860 3.2467 0.6184 200 2.7486 3.0921 0.6184 1 9 0 2.6111 2.9375 0.6184 1 80 2.473 7 2.7829 0.6184 1 70 2.3 3 63 2.6283 0.6184 160 2.1988 2.4 73 7 0.6184 1 50 2.0614 2.3 191 0.6184 140 1.9240 2.1645 0.6184 13 0 1.7866 2.0099 0.6184 120 1.6491 1.8553 0.6184 110 1.5117 1.7007 0.6184 1 00 1.3 .743 1.5461 0.6184 90 1.2368 1.3915 0.6184 -13- 200418708 [Table 3] Packaging speed 3 600 pcs / h Roller roll diameter (mm) and the number of rotations of the drive shaft Ratio of braking torque (kgf / cm) Film tension (kgf) 280 3.8480 4.3 2 9 0 0.6184 270 3.7105 4.1744 0.6184 260 3.5731 4.0198 0.6184 250 3.4357 3.8 6 5 1 0.6184 240 3.2983 3.7105 0.6184 230 3.1608 3.5 5 5 9 0.6184 220 3.0234 3.4013 0.6184 2 10 2.8860 3.2467 0.6184 200 2.7486 3.0921 0.6184 1 90 2.6111 2.9375 0.6184 1 80 2.4 7 3 7 2.7829 0.6184 1 70 2.3363 2.6283 0.6184 1 60 2.1988 2.4 73 7 0.6184 1 50 2.0614 2.3 191 0.6184 140 1 .9240 2.1645 0.6184 1 30 1.7866 2.0099 0.6184 120 1.6491 1.8553 0.6184 110 1.5117 1.7007 0.6184 1 00 1.3743 1.54 6 1 0.6184 90 1.2 3 6 8 1.3915 0.6184
-14- (12) (12)200418708 以上，雖將本發明依據一實施形態具體地說明，可是 本發明並不限定於該實施形態，當然也可以在申請專利的 範圍所記載之本發明的範圍內進行各種變形和變更。 例如，在上述之實施形態，係雖然爲了檢測薄膜捲筒 式輥料的旋轉數，所以對捲筒式輥軸直接安裝旋轉編碼器 等之旋轉數檢測器，可是也可以在薄膜捲筒式輥料本身安 裝旋轉數檢測器而檢測薄膜捲筒式輥料的旋轉數、或者連 結在捲筒式輥軸並安裝在以與捲筒式輥軸之旋轉數成比例 的旋轉數來旋轉之其他的軸等而以檢測薄膜捲筒式輥料之 旋轉數的方式也可。 並且’在上述的實施形態，雖然爲了檢測薄膜捲筒式 輥料之旋轉數，而採用脈衝產生器，可是並不限於此，能 夠採用適當的旋轉數檢測器。此等的任何情況，也只是根 據檢測何處的旋轉數，來改變驅動軸側和薄膜捲筒式|昆料 側之所對比的旋轉數之比。 並且’在上述的實施形態，係雖然爲了對所拉出之薄 膜給予制動力，所以對支持薄膜捲筒式輥料的捲筒式輥軸 而藉虫可變式刹車器來給予制動力之構成，可是也可以對 溥腠捲筒式輥料本身直接、或藉由給予制動力於與捲筒式 輕軸連結的其他軸等，來對薄膜捲筒式輥料間接地給予制 動力等’使用其他的適當之制動力給予手段。 而且’在上述實施形態，係雖然將給予拉出薄膜的驅 動力之驅動軸8的旋轉數直接檢測，可是也可以藉由檢測 連結在驅動軸8而旋轉之其他旋轉軸的旋轉數，來間接地 -15- (13) (13)200418708 檢測驅動軸8之旋轉數。 〔發明之效果〕 如以上所說明，本發明係對薄膜捲筒式輥料給予制動 力並且在張緊狀態下將薄膜拉出而供給的薄膜之供給方法 ’按照給予將薄膜拉出的驅動力之驅動軸的旋轉數和薄膜 捲筒式輥料之旋轉數的比之變化，使相對前述薄膜捲筒式 輥料給予前述制動力變化的方式提供從薄膜捲筒式輥料之 薄膜供給方法。 在本發明的薄膜供給方法’係從給予拉出薄膜的驅動 力之驅動軸的旋轉數和薄膜捲筒式輥料之旋轉數的比之變 化能得知薄膜捲筒式輥料的直徑之變化：，對從薄膜捲筒式 輥料所拉出的薄膜，藉由給予對應其變化而使之變化的制 動力而將薄膜拉出，即使隨著薄膜捲筒式輥料之消耗而薄 膜捲筒式輥料的直徑變化，也能對從薄膜捲筒式輥料所拉 出之薄膜，經常使一定的張力作用。 而且’在本發明之薄膜供給方法，係因爲將對薄膜捲 筒式輥料的旋轉而給予之制動力，藉由爲了拉出薄膜的驅 動軸之旋轉數和薄膜捲筒式輥料的旋轉數之比的變化而改 變’所以即使爲了改變薄膜之拉出速度故改變用來拉出薄 Μ的驅動軸之旋轉數，用來拉出該薄膜的驅動軸之旋轉數 與薄膜捲筒式輥料的旋轉數之比，是不受其速度變化的影 而且該比是因爲僅藉由薄膜捲筒式輥料的直徑之變化 而改變’所以即使改變薄膜的拉出速度，和其拉出速度之 -16- (14) (14)200418708 變化無關，而且能夠按照捲筒式輥料的直徑之變化使薄膜 的張力成爲一定而將所變化之制動力給予薄膜捲筒式_昆料 〇 並且，本發明是提供在具有：給予從薄膜捲筒式輥料 將薄膜拉出的驅動力之驅動軸、及將所拉出的薄膜保持張 緊狀態而相對前述薄膜捲筒式輥料的旋轉並且給予制動力 之張緊給予裝置的薄膜供給裝置，前述張緊給予裝置，係 具有：當所供給的電量變化時制動力可改變之可變式刹車 器、及將相對同可變式剎車器供給的電量按照前述驅動軸 之旋轉數與前述薄膜捲筒式輥料的旋轉數之比的變化而改 變之刹車控制裝置之從捲筒式輥料的薄膜供給裝置。 在本發明之薄膜供給裝置是作爲將從薄膜捲筒式輥料 所拉出的溥膜保持張緊狀態而給予制動力之張緊給予裝置 ’當所供給的電量變化時採用制動力可改變之可變式刹車 器’同時黯由刹車控制裝置，因爲將供給於其可變式刹車 器的電量，按照從薄膜捲筒式輥料給予拉出薄膜的驅動力 之驅動軸的旋轉數、及薄膜捲筒式輥料的旋轉數之比的變 化而改變’所以與從薄膜捲筒式輥料之薄膜拉出速度無關 ’將依薄膜捲筒式輥料的直徑之變化而所改變的制動力給 予薄膜捲筒式輕料，在從捲筒式輥料所拉出之薄膜是能夠 經常使預定之一定張力作用。 作爲在本發明的薄膜供給裝置採用之剎車控制裝置， 採用具有：檢測薄膜捲筒式輥料的旋轉數之第1脈衝產生 器、檢測給予從薄膜捲筒式輥料將薄膜拉出的驅動力之驅 -17 - (15) (15)200418708 動軸的旋轉數之第2脈衝產生器、及對應第2脈衝產生器 產生的脈衝數與前述第1脈衝產生器產生的脈衝數之比的 變化而將所變化之電量產生的變換器之構成，能夠將引出 的薄膜之制動力，與薄膜捲筒式輥料的直徑變化無關而且 經常成爲一定而正確地數位控制較佳。 【圖式簡單說明】 〔圖1〕 係顯示根據本發明的一實施形態之從薄膜捲筒式輕料 的薄膜供給裝置之構成的說明圖。 主要元件對照表 1 :輸送帶 2 ·鍵輪 J ·鍵輪 4 :容器 5 ·薄膜捲筒式輕料 6 :薄膜 7 :引導滾輪 8 :驅動軸 · 9 :鏈條 1 〇 ·驅動輪 n :制動輪 ]2 :可變式刹車器 -18- (16) (16)200418708 1 3 :鏈條 1 4 :脈衝計數器 1 5 :數位/類比變換器 16 :變換器-14- (12) (12) 200418708 and above, although the present invention is specifically explained based on an embodiment, the present invention is not limited to this embodiment, and of course, the scope of the present invention may also be within the scope of the patent application Various deformations and changes are carried out. For example, in the above-mentioned embodiment, in order to detect the number of rotations of the film roll type roll, a rotation number detector such as a rotary encoder is directly installed on the roll type roll shaft. However, the film roll type The material itself is equipped with a rotation number detector to detect the number of rotations of the film roll type roll material, or other connected to the roll type roll shaft and installed at a number of rotations that is proportional to the number of rotations of the roll type roll shaft. It is also possible to detect the number of rotations of the film roll roll by using a shaft or the like. Furthermore, in the above-mentioned embodiment, although the pulse generator is used to detect the number of rotations of the film roll type roll material, it is not limited to this, and an appropriate rotation number detector can be used. In any of these cases, the ratio of the number of rotations to be compared between the drive shaft side and the film roll type | knitting material side is only changed according to the number of rotations detected. In addition, in the above-mentioned embodiment, in order to apply braking force to the pulled-out film, a reel-type brake is used to provide braking force to a reel-type roller shaft supporting a film reel-type roll material. However, it is also possible to apply braking force indirectly to the film reel roll material, or indirectly, by giving braking force to other shafts connected to the reel light shaft, etc. Other appropriate means of braking force. Furthermore, in the above-mentioned embodiment, although the number of rotations of the drive shaft 8 that directly gives the driving force to pull out the film is directly detected, the number of rotations of other rotation shafts connected to the drive shaft 8 and rotated may be detected indirectly. Ground-15- (13) (13) 200418708 Detects the number of rotations of the drive shaft 8. [Effects of the Invention] As described above, the present invention is a method of supplying a film by applying a braking force to a film roll roll material and pulling the film out in a tensioned state. The change in the ratio of the number of rotations of the drive shaft and the number of rotations of the film roll type rolls provides a method for supplying the film from the film roll type rolls in a manner that changes the braking force given to the film roll type rolls. In the film supply method of the present invention, the change in the diameter of the film roll type roll can be determined from the change in the ratio of the number of rotations of the drive shaft to which the driving force is given to pull out the film and the number of rotation of the film roll roll. : For the film pulled from the film roll type roll, the film is pulled out by giving a braking force corresponding to the change, even if the film roll is consumed as the film roll type roll is consumed The change in the diameter of the roll material can also exert a certain tension on the film pulled from the film roll roll material. In addition, in the film supply method of the present invention, the braking force is given to the rotation of the film roll roll, and the number of rotations of the drive shaft for pulling out the film and the number of rotations of the film roll roll are given. The change of the ratio changes, so even if the film pull-out speed is changed, the number of rotations of the drive shaft used to pull out the thin film M, the number of rotations of the drive shaft used to pull out the film, and the film roll type roll material are changed. The ratio of the number of rotations is not affected by the change in speed, and the ratio is changed only by the change in the diameter of the film roll roll material. So even if the film pull-out speed is changed, -16- (14) (14) 200418708 The change is irrelevant, and the tension of the film can be made constant according to the change of the diameter of the roll type roll material, and the changed braking force can be given to the film roll type. The invention is to provide a drive shaft having a driving force for giving a driving force to pull a film from a film roll roll material, and a method of rotating and rotating the film with respect to the film roll roll material while maintaining the tension of the drawn film. power The film supply device of the tension application device, the tension application device includes a variable brake capable of changing a braking force when the supplied electric power is changed, and drives the electric power supplied from the same variable brake as described above. The film control device of the brake control device that changes from a change in the ratio of the number of rotations of the shaft to the number of rotations of the film roll type roll material from the roll type roll material. The film supply device of the present invention is a tension-giving device that provides a braking force as the diaphragm film pulled out from the film roll roll material is maintained in a tensioned state. The braking force can be changed when the amount of power supplied is changed. The variable brake is simultaneously controlled by the brake control device because the electric power supplied to the variable brake is based on the number of rotations of the drive shaft and the driving force given to the film roll driving force to pull out the film, and the film. The change in the ratio of the number of rotations of the roll type roll material is changed 'so it has nothing to do with the film pull-out speed from the film roll type roll material.' The film roll type light material can always make a predetermined tension when the film is pulled out from the roll type roll material. As the brake control device used in the film feeding device of the present invention, a first pulse generator having a number of rotations for detecting a film roll type roll material is used, and a driving force for drawing a film from the film roll type roll material is detected. Drive-17-(15) (15) 200418708 Changes in the ratio of the number of pulses generated by the second pulse generator to the number of pulses generated by the second pulse generator and the number of pulses generated by the first pulse generator The configuration of the converter that generates the changed electric quantity can make the braking force of the drawn film independent of the change in the diameter of the film roll roll material, and it often becomes a certain and correct digital control. [Brief description of the drawings] [Fig. 1] Fig. 1 is an explanatory diagram showing the configuration of a thin film supply device from a film roll type according to an embodiment of the present invention. Comparison table of main components 1: Conveyor belt 2 · Key wheel J · Key wheel 4: Container 5 · Film roll type light material 6: Film 7: Guide roller 8: Drive shaft · 9: Chain 1 〇Drive wheel n: Brake Wheel) 2: variable brake-18- (16) (16) 200418708 1 3: chain 1 4: pulse counter 1 5: digital / analog converter 16: converter
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