JP2009113892A - Connecting method of sheet-like member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting method of a sheet-like member capable of precisely connecting end parts of the sheet-like members made of unvulcanized rubber, etc. to each other by eliminating variations while maintaining high productivity. <P>SOLUTION: An upstream sensor S3 and a downstream sensor S4 are arranged with a connecting position J interposed therebetween, a target position G is set in the vicinity of the downstream sensor S4, the sheet-like member R2 of a prescribed length is carried at low speed until the downstream sensor S3 detects a front end part of the sheet-like member R2 after it is carried at high speed, the front end part of the sheet-like member R2 is connected to a rear end part of the sheet-like member R1 carried in advance by positioning the front end part of the sheet-like member R2 at the connecting position J by changing the low speed to lower second low speed after this detection, thereafter, the sheet-like member R2 is returned at the low speed until the downstream sensor S4 detects the rear end part of the sheet-like member R2 after the sheet-like member R2 is returned at the high speed, and the rear end part of the sheet-like member R2 is positioned at the target position G by changing the low speed to the lower second low speed after this detection. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、シート状部材の接合方法に関し、さらに詳しくは、未加硫ゴム等からなるシート状部材の端部どうしを、高い生産性を維持しつつ、ばらつきをなくして精度よく接合できるようにしたシート状部材の接合方法に関するものである。   The present invention relates to a method for joining sheet-like members. More specifically, the ends of sheet-like members made of unvulcanized rubber and the like can be joined with high accuracy while maintaining high productivity while maintaining high productivity. The present invention relates to a method for joining the sheet-like members.

タイヤ等のゴム製品の製造工程においては、ゴムシートや、ゴムとコード等との複合材シートなど、未加硫ゴム等からなる種々のシート状部材が使用されている。これらシート状部材には、例えば、原反ロールから引き出され、バイアスカッタによって所定長さに切断され、切断したシート状部材の幅方向端部どうしを接合して用いられるものがある。   In the manufacturing process of rubber products such as tires, various sheet-like members made of unvulcanized rubber, such as rubber sheets and composite sheets of rubber and cords, are used. Some of these sheet-like members are, for example, drawn from an original fabric roll, cut to a predetermined length by a bias cutter, and used by joining end portions in the width direction of the cut sheet-like members.

このようにシート状部材の端部どうしを接合する際に、生産性を向上させることができる搬送コンベヤの速度制御方法が提案されている（特許文献１参照）。この提案の発明では、搬送コンベヤの搬送領域を高速走行領域と低速走行領域とに区画し、なるべく高速走行領域を長くすることにより、シート状部材の搬送時間の短縮を可能にしている。   Thus, when joining the edge parts of a sheet-like member, the speed control method of the conveyance conveyor which can improve productivity is proposed (refer patent document 1). In the proposed invention, the conveyance area of the conveyance conveyor is divided into a high-speed traveling area and a low-speed traveling area, and the high-speed traveling area is made as long as possible, thereby shortening the conveying time of the sheet-like member.

このような方法によれば、端部どうしを接合したシート状部材を、高い生産性で得ることができるが、搬送コンベヤの高速走行と低速走行との切替えにより、コンベヤベルトに滑り（空転）が生じることがあり、また、使用頻度に応じてコンベヤベルトの伸び等が大きくなる。特許文献１の発明では、搬送コンベヤの高速走行距離および低速走行距離をパルス発信器でカウントして測定しているが、コンベヤベルトの滑りや伸び等があると測定誤差が生じる。そのため、シート状部材を接合する際に、搬送したシート状部材の端部を目標停止位置に正確に位置決めすることができなくなり、シート状部材の端部どうしをばらつきなく、均一に接合することができなくなるという問題があった。
特開平３−１３８２５８号公報 According to such a method, a sheet-like member having joined end portions can be obtained with high productivity. However, slipping (idling) of the conveyor belt is caused by switching between high-speed traveling and low-speed traveling of the conveyor. In addition, the elongation of the conveyor belt increases depending on the frequency of use. In the invention of Patent Document 1, the high speed travel distance and the low speed travel distance of the conveyor are measured by counting with a pulse transmitter. However, if there is slippage or elongation of the conveyor belt, a measurement error occurs. Therefore, when joining the sheet-like member, it becomes impossible to accurately position the end portion of the conveyed sheet-like member at the target stop position, and the end portions of the sheet-like member can be joined uniformly without variation. There was a problem that it was impossible.
Japanese Patent Laid-Open No. 3-138258

本発明の目的は、未加硫ゴム等からなるシート状部材の端部どうしを、高い生産性を維持しつつ、ばらつきをなくして精度よく接合できるようにしたシート状部材の接合方法を提供することにある。   An object of the present invention is to provide a method for joining sheet-like members in which end portions of sheet-like members made of unvulcanized rubber or the like can be joined with high accuracy while maintaining high productivity and without variation. There is.

上記目的を達成するため本発明のシート状部材の接合方法は、所定長さのシート状部材を、搬送コンベヤにより所定位置まで高速搬送した後、低速搬送に切替えて、該シート状部材の前端部を接合位置に位置決めし、該シート部材の前端部と、先に搬送したシート状部材の後端部とを接合した後、この新たに接合したシート状部材の後端部を、引き取り装置により目標位置に位置決めする工程を繰り返し行なうシート状部材の接合方法において、前記接合位置近傍の接合位置を挟んだ搬送方向上流側と下流側とに、それぞれ上流側センサと下流側センサとを配置するとともに、該下流側センサ近傍に前記目標位置を設定し、シート状部材の前端部を接合位置に位置決めする際には、前記低速搬送を前記上流側センサが該シート状部材の前端部を検知するまで行ない、該検知後は前記低速搬送よりも低速度の第２低速搬送に切替えて、該シート状部材の前端部を接合位置に位置決めし、この新たに接合したシート状部材の後端部を前記目標位置に位置決めする際には、シート状部材の所定長さと略同じ長さを引き取り装置により高速引き取りした後、低速引き取りに切替えて、該低速引き取りを前記下流側センサが該シート状部材の後端部を検知するまで行ない、該検知の後は前記低速引き取りよりも低速度の第２低速引き取りに切替えて、該シート状部材の後端部を目標位置に位置決めし、該シート状部材を予め設定した一定長さ移動させてその後端部を、前記接合位置に位置決めしたシート部材の前端部に接合することを特徴とするものである。   In order to achieve the above object, the sheet-like member joining method of the present invention is a method in which a sheet-like member having a predetermined length is conveyed at a high speed to a predetermined position by a conveying conveyor, then switched to low-speed conveyance, and the front end portion of the sheet-like member Is positioned at the joining position, and the front end portion of the sheet member and the rear end portion of the sheet-like member conveyed earlier are joined, and then the rear end portion of the newly joined sheet-like member is targeted by the take-up device. In the joining method of the sheet-like member in which the step of positioning at a position is repeated, an upstream sensor and a downstream sensor are respectively arranged on the upstream side and the downstream side in the transport direction across the joining position in the vicinity of the joining position, When the target position is set in the vicinity of the downstream sensor and the front end of the sheet-like member is positioned at the joining position, the upstream sensor performs the low-speed conveyance by the front end of the sheet-like member. After the detection, switch to the second low-speed conveyance, which is lower than the low-speed conveyance, position the front end of the sheet-like member at the joining position, and the rear end of the newly joined sheet-like member When the part is positioned at the target position, the sheet-like member is taken up at a high speed by a take-up device at a high speed, and then switched to a low-speed take-off. The detection is performed until the rear end of the member is detected. After the detection, the second low-speed take-off is switched to a lower speed than the low-speed take-up, and the rear end of the sheet-like member is positioned at a target position. The member is moved by a predetermined length and the rear end portion is joined to the front end portion of the sheet member positioned at the joining position.

ここで、例えば、前記搬送コンベヤの高速搬送の速度を１００ｍｍ／ｓ〜８００ｍｍ／ｓ、低速搬送の速度を２０ｍｍ／ｓ〜９９ｍｍ／ｓ、第２低速搬送の速度を５ｍｍ／ｓ〜１９ｍｍ／ｓに設定し、前記引き取り装置の高速引き取りの速度を１００ｍｍ／ｓ〜８００ｍｍ／ｓ、低速引き取りの速度を２０ｍｍ／ｓ〜９９ｍｍ／ｓ、第２低速引き取りの速度を５ｍｍ／ｓ〜１９ｍｍ／ｓに設定する。前記引き取り装置の高速引き取りの速度を、前記搬送コンベヤの高速搬送の速度よりも高速に設定することもできる。前記上流側センサと接合位置との間隔は、例えば１ｍｍ以上１０ｍｍ以下に設定し、前記下流側センサと目標位置との間隔は、例えば、１ｍｍ以上１０ｍｍ以下に設定する。また、前記上流側センサまたは下流側センサとより、先に搬送したシート状部材と新たに搬送したシート状部材とを接合した際の接合不良の有無を検知することもできる。   Here, for example, the high-speed transfer speed of the transfer conveyor is set to 100 mm / s to 800 mm / s, the low-speed transfer speed is set to 20 mm / s to 99 mm / s, and the second low-speed transfer speed is set to 5 mm / s to 19 mm / s. The high-speed take-up speed of the take-up device is set to 100 mm / s to 800 mm / s, the low-speed take-up speed is set to 20 mm / s to 99 mm / s, and the second low-speed take-up speed is set to 5 mm / s to 19 mm / s. . The high-speed take-up speed of the take-up device can be set higher than the high-speed transfer speed of the transfer conveyor. An interval between the upstream sensor and the joining position is set to, for example, 1 mm to 10 mm, and an interval between the downstream sensor and the target position is set to, for example, 1 mm to 10 mm. The upstream sensor or the downstream sensor can also detect the presence or absence of bonding failure when the previously transported sheet-like member and the newly transported sheet-like member are joined.

本発明によれば、接合位置近傍の接合位置を挟んだ搬送方向上流側と下流側とに、それぞれ上流側センサと下流側センサとを配置するとともに、下流側センサ近傍に目標位置を設定し、シート状部材の前端部を接合位置に位置決めする際には、所定位置まで高速搬送した後の低速搬送を、上流側センサがシート状部材の前端部を検知するまで行ない、この検知後は低速搬送よりも低速度の第２低速搬送に切替えて、シート状部材の前端部を接合位置に位置決めするので、シート状部材の搬送時間の増大を回避して短縮化を維持することができる。   According to the present invention, the upstream sensor and the downstream sensor are respectively arranged on the upstream and downstream sides in the transport direction across the joining position in the vicinity of the joining position, and the target position is set in the vicinity of the downstream sensor, When positioning the front end of the sheet-like member at the joining position, low-speed conveyance after high-speed conveyance to a predetermined position is performed until the upstream side sensor detects the front end of the sheet-like member. After this detection, low-speed conveyance is performed. Since the front end of the sheet-like member is positioned at the joining position by switching to the lower-speed second low-speed conveyance, it is possible to avoid an increase in the conveyance time of the sheet-like member and maintain the shortening.

また、上流側センサがシート状部材の前端部を検知する直前と直後は、低速搬送と第２低速搬送との切替えになるので、この切替えによってコンベヤベルトの滑り等が生じることがなく、しかも、第２低速搬送は上流側センサから接合位置までの短い距離となる。したがって、上流側センサがシート状部材の前端部を検知してから接合位置に位置決めするまでのシート状部材の移送距離は、コンベヤベルトの滑りや伸び等の悪影響を受けることがなく、高い精度で位置決めを行なうことができる。   Also, immediately before and immediately after the upstream sensor detects the front end of the sheet-like member, the low-speed conveyance and the second low-speed conveyance are switched, so that this switching does not cause the conveyor belt to slip, The second low-speed conveyance is a short distance from the upstream sensor to the joining position. Therefore, the transfer distance of the sheet-like member from when the upstream sensor detects the front end portion of the sheet-like member to the positioning at the joining position is not affected by slipping or stretching of the conveyor belt, and is highly accurate. Positioning can be performed.

新たに接合したシート状部材の後端部を接合位置に位置決めする際には、シート状部材の所定長さと略同じ長さに設定した長さを引き取り装置により高速引き取りした後、低速引き取りに切替えて、低速引き取りを下流側センサがシート状部材の後端部を検知するまで行ない、この検知の後は低速引き取りよりも低速度の第２低速引き取りに切替えて、シート状部材の後端部を目標位置に位置決めするので、シート状部材の引き取り時間の増大を回避して短縮することができる。   When positioning the rear end of the newly joined sheet-like member at the joining position, the length set to approximately the same length as the predetermined length of the sheet-like member is taken up by the take-up device and then switched to low-speed take-up. The low-speed take-up is performed until the downstream sensor detects the rear end of the sheet-like member, and after this detection, the second low-speed take-off is switched to a lower speed than the low-speed take-up, and the rear end of the sheet-like member is changed. Since it is positioned at the target position, it can be shortened by avoiding an increase in the take-up time of the sheet-like member.

また、下流側センサがシート状部材の後端部を検知する直前と直後は、低速引き取りと第２低速引き取りとの切替えになり、しかも、第２低速引き取りは下流側センサから目標位置までの短い距離となる。したがって、下流側センサがシート状部材の後端部を検知してから目標位置に位置決めするまでのシート状部材の移送距離は、コンベヤベルトの滑りや伸び等の悪影響を受けることがなく、高い精度で位置決めを行なうことができる。   Further, immediately before and immediately after the downstream sensor detects the rear end of the sheet-like member, the low-speed take-up and the second low-speed take-off are switched, and the second low-speed take-off is short from the downstream sensor to the target position. Distance. Therefore, the transfer distance of the sheet-like member from when the downstream sensor detects the rear end of the sheet-like member to positioning it at the target position is not affected by adverse effects such as slippage and elongation of the conveyor belt, and is highly accurate. Positioning can be performed with.

このように、接合位置、目標位置のそれぞれ近傍に配置した上流側センサ、下流側センサによってシート状部材を確実に検知することにより、接合するシート状部材をそれぞれ接合位置、目標位置に正確に位置決めすることができる。そのため、目標位置に位置決めしたシート状部材の後端部を、予め設定した一定長さ移動させることにより、シート状部材の端部どうしを高い生産性を維持しながら、ばらつきをなくして精度よく接合することが可能になる。   Thus, the sheet-like member is reliably detected by the upstream sensor and the downstream sensor arranged in the vicinity of the joining position and the target position, so that the sheet-like member to be joined is accurately positioned at the joining position and the target position, respectively. can do. Therefore, by moving the rear end of the sheet-like member positioned at the target position by a predetermined length, the ends of the sheet-like member can be joined with high precision without variation while maintaining high productivity. It becomes possible to do.

以下、本発明のシート状部材の接合方法を図に示した実施形態に基づいて説明する。   Hereinafter, the joining method of the sheet-like member of this invention is demonstrated based on embodiment shown in the figure.

図１〜図３に例示するように、本発明を実施する際に用いる接合装置１は、搬送コンベヤ２と引き取り装置４との間に接合機３を配置している。搬送コンベヤ２には、搬送面に順次供給される所定長さのシート状部材Ｒを、所定位置に載置するガイド２ａが設けられている。引き取り装置４は、引き取り制御ローラ５と、巻き取りシャフト６とにより構成されている。搬送コンベヤ２および引き取り制御ローラ５の駆動は、制御装置７により制御される。   As illustrated in FIGS. 1 to 3, the joining device 1 used when carrying out the present invention has a joining machine 3 disposed between the transport conveyor 2 and the take-up device 4. The transport conveyor 2 is provided with a guide 2a for placing the sheet-like member R having a predetermined length, which is sequentially supplied to the transport surface, at a predetermined position. The take-up device 4 includes a take-up control roller 5 and a take-up shaft 6. Driving of the conveyor 2 and the take-up control roller 5 is controlled by the control device 7.

新たなシート状部材Ｒ２は、搬送コンベヤ２による高速搬送、低速搬送、低速搬送よりも低速度の第２低速搬送によって、接合機３の接合位置Ｊまで搬送される。シート状部材Ｒ２は、先に搬送されたシート状部材Ｒ１と接合位置Ｊで接合された後、引き取り装置４による高速引き取り、低速引き取り、低速引き取りよりも低速度の第２低速引き取りによって、下流側へ引き取られる。   The new sheet-like member R <b> 2 is conveyed to the joining position J of the joining machine 3 by the second low-speed conveyance that is lower than the high-speed conveyance, the low-speed conveyance, and the low-speed conveyance by the conveyance conveyor 2. After the sheet-like member R2 is joined at the joining position J with the sheet-like member R1 conveyed previously, the sheet-like member R2 is moved downstream by high-speed take-up by the take-up device 4, low-speed take-up, and second low-speed take-up lower than the low-speed take-up. To be taken over.

接合機３は、平板部３ａに対して近接および離反する押圧部３ｂと引き戻しブラシ３ｃとを備えている。この接合機３の押圧部３ｂの下方位置が、シート状部材Ｒの前端部を停止させる位置であり、シート状部材Ｒの端部どうしを接合する接合位置Ｊになっている。   The joining machine 3 includes a pressing portion 3b and a pull-back brush 3c that approach and leave the flat plate portion 3a. The lower position of the pressing portion 3b of the bonding machine 3 is a position where the front end portion of the sheet-like member R is stopped, and is a joining position J where the end portions of the sheet-like member R are joined together.

搬送コンベヤ２の上方には、シート状部材Ｒの搬送方向に間隔をあけてセンサＳ１、Ｓ２が配置されている。また、接合位置Ｊの近傍で、接合位置Ｊを挟んでシート状部材Ｒの搬送方向上流側と下流側とに、それぞれ、上流側センサＳ３、下流側センサＳ４とが配置されている。さらに、下流側センサＳ４よりも下流側にセンサＳ５が配置されている。   Sensors S <b> 1 and S <b> 2 are arranged above the transport conveyor 2 at intervals in the transport direction of the sheet-like member R. Further, in the vicinity of the joining position J, an upstream sensor S3 and a downstream sensor S4 are disposed on the upstream side and the downstream side in the conveying direction of the sheet-like member R with the joining position J interposed therebetween. Furthermore, the sensor S5 is disposed downstream of the downstream sensor S4.

上流側センサＳ３および下流側センサＳ４は、それぞれ単数でもよいが、実施形態に例示するようにシート状部材Ｒの搬送方向に直交する方向に複数、例えば３個以上設けることが好ましい。３つのセンサＳ１、Ｓ２、Ｓ５は反射型センサ、上流側センサＳ３および下流側センサＳ４は透過型センサになっているが、シート状部材Ｒの有無を検知できれば特にセンサ形式は限定されない。センサＳ１、Ｓ２、Ｓ５は省略することもできる。   Each of the upstream sensor S3 and the downstream sensor S4 may be a single one, but as illustrated in the embodiment, it is preferable to provide a plurality, for example, three or more in the direction orthogonal to the conveying direction of the sheet-like member R. The three sensors S1, S2, and S5 are reflective sensors, and the upstream sensor S3 and the downstream sensor S4 are transmissive sensors. However, the sensor type is not particularly limited as long as the presence or absence of the sheet-like member R can be detected. The sensors S1, S2, S5 can also be omitted.

この接合装置１による本発明のシート状部材の接合方法を説明する。
搬送コンベヤ２には、例えば、バイアスカッタによって切断された所定長さの未加硫ゴム等からなるシート状部材Ｒ（Ｒ１、Ｒ２、Ｒ３）が、順次供給される。供給されたシート状部材Ｒは、ガイド２ａにより搬送面の所定位置に載置される。 A method for joining the sheet-like members of the present invention by the joining apparatus 1 will be described.
For example, sheet-like members R (R1, R2, R3) made of unvulcanized rubber or the like having a predetermined length cut by a bias cutter are sequentially supplied to the conveyor 2. The supplied sheet-like member R is placed at a predetermined position on the conveying surface by the guide 2a.

ここで、供給されるシート状部材Ｒの所定長さが変更になる度に、高速搬送を行なう距離Ａ１を以下のとおり設定される。まず、シート状部材Ｒを搬送コンベヤ２の搬送面の所定位置に載置した位置の座標を、基準の０（スタート位置）とする。次いで、搬送コンベヤ２を低速度で稼動させて、上流側センサＳ３がシート状部材Ｒの前端部を検知するまで搬送する。この搬送を複数回（例えば３回）行なって、スタート位置から上流側センサＳ３がシート状部材Ｒの前端部を検知するまでの移送距離Ｘ１、Ｘ２、Ｘ３を取得し、これら移送距離Ｘ１、Ｘ２、Ｘ３の平均値Ｘを算出する。   Here, every time the predetermined length of the supplied sheet-like member R is changed, the distance A1 for high-speed conveyance is set as follows. First, the coordinates of the position where the sheet-like member R is placed at a predetermined position on the transport surface of the transport conveyor 2 are set as a reference 0 (start position). Next, the transport conveyor 2 is operated at a low speed and transported until the upstream sensor S3 detects the front end of the sheet-like member R. This conveyance is performed a plurality of times (for example, three times) to obtain transfer distances X1, X2, and X3 from the start position until the upstream sensor S3 detects the front end of the sheet-like member R, and these transfer distances X1 and X2 , X3 average value X is calculated.

制御装置７には図４に例示するように、上流側センサＳ３から搬送方向上流側の所定距離Ａ（固定値）が、低速搬送を行なう距離として入力、設定されており、平均値Ｘから所定距離Ａを差し引いた距離Ａ１が、スタート位置から高速搬送する距離として制御装置７に入力、設定される。また、制御装置７には、既知である上流側センサＳ３と接合位置Ｊとの距離Ａ２が、第２低速搬送を行なう距離として入力、設定されている。   As illustrated in FIG. 4, a predetermined distance A (fixed value) upstream from the upstream sensor S <b> 3 is input to the control device 7 as a distance for low-speed conveyance. A distance A1 obtained by subtracting the distance A is input and set to the control device 7 as a high-speed transport distance from the start position. In the control device 7, a known distance A2 between the upstream sensor S3 and the joining position J is input and set as a distance for performing the second low-speed conveyance.

搬送コンベヤ２に供給された新たなシート状部材Ｒ２は、スタート位置から距離Ｘまで高速搬送（速度Ｖａ１）され、その後、低速搬送（速度Ｖａ２）に切替えられて搬送される。この低速搬送は、上流側センサＳ３がシート状部材Ｒ２の前端部を検知するまで行われる。この検知後、より低速度の第２低速搬送（速度Ｖａ３）に切替えられて、シート状部材Ｒ２の前端部は接合位置Ｊに位置決めされる。   The new sheet-like member R2 supplied to the transport conveyor 2 is transported at high speed (speed Va1) from the start position to the distance X, and then switched to low speed transport (speed Va2) and transported. This low speed conveyance is performed until the upstream sensor S3 detects the front end of the sheet-like member R2. After this detection, the second low-speed conveyance (speed Va3) is switched to a lower speed, and the front end portion of the sheet-like member R2 is positioned at the joining position J.

このように、新たなシート状部材Ｒ２の前端部を接合位置Ｊに位置決めする際の搬送を、高速搬送、低速搬送、第２低速搬送の３段階で行なうことによって、シート状部材Ｒの搬送時間の増大を回避して短縮化を維持することができる。   In this way, the conveyance time for positioning the front end of the new sheet-like member R2 at the joining position J is performed in three stages of high-speed conveyance, low-speed conveyance, and second low-speed conveyance, so that the conveyance time of the sheet-like member R is reached. Therefore, the shortening can be maintained.

上流側センサＳ３がシート状部材Ｒの前端部を検知する直前と直後は、低速搬送と第２低速搬送との切替えになるので、コンベヤベルトの滑り等が生じることがなく、しかも、第２低速搬送は上流側センサＳ３から接合位置Ｊまでの短い距離となる。このように上流側センサＳ３がシート状部材Ｒの前端部を確実に検知し、その検知から接合位置Ｊに位置決めするまでのシート状部材Ｒの移送距離は、コンベヤベルトの滑りや伸び等の悪影響を受けることがないので、高い精度で位置決めを行なうことができる。   Immediately before and immediately after the upstream sensor S3 detects the front end portion of the sheet-like member R, the low-speed conveyance and the second low-speed conveyance are switched, so that the conveyor belt does not slip and the second low-speed conveyance occurs. The conveyance is a short distance from the upstream sensor S3 to the joining position J. Thus, the upstream sensor S3 reliably detects the front end portion of the sheet-like member R, and the transfer distance of the sheet-like member R from the detection to positioning at the joining position J has an adverse effect such as slipping or stretching of the conveyor belt. Therefore, positioning can be performed with high accuracy.

搬送時間の短縮と位置決め精度との両立を考慮すると、例えば、高速搬送の速度Ｖａ１は１００ｍｍ／ｓ以上８００ｍｍ／ｓ以下、低速搬送の速度Ｖａ２は２０ｍｍ／ｓ以上９９ｍｍ／ｓ以下、第２低速搬送の速度Ｖａ３は５ｍｍ／ｓ以上１９ｍｍ／ｓ以下に設定する。また、例えば、距離Ａを１０ｍｍ以上４０ｍｍ以下、距離Ａ２を１ｍｍ以上１０ｍｍ以下に設定する。   Taking into account both the reduction of the conveyance time and the positioning accuracy, for example, the high-speed conveyance speed Va1 is 100 mm / s or more and 800 mm / s or less, the low-speed conveyance speed Va2 is 20 mm / s or more and 99 mm / s or less, and the second low-speed conveyance is performed. The speed Va3 is set to 5 mm / s or more and 19 mm / s or less. For example, the distance A is set to 10 mm or more and 40 mm or less, and the distance A2 is set to 1 mm or more and 10 mm or less.

引き取り装置４による高速引き取りを行なう距離Ｂ１は、以下のとおり設定される。図５に例示するように、新たに搬送したシート状部材Ｒ２の前端部を接合位置Ｊに位置決めした際の後端部の座標を基準の０（スタート位置）とする。このスタート位置からシート状部材Ｒの所定長さＹと略同じ長さ、例えば、所定長さＹから補正長さＢを差し引いた長さが、高速引き取りを行なう距離Ｂ１として設定され、制御装置７に入力される。また、制御装置７には、下流側センサＳ４から下流側センサＳ４近傍の距離Ｂ３（固定値）が目標位置Ｇとして入力、設定されている。接合位置Ｊと下流側センサＳ４との距離Ｂ２は既知である。   The distance B1 for performing high-speed take-up by the take-up device 4 is set as follows. As illustrated in FIG. 5, the coordinates of the rear end when the front end of the newly conveyed sheet-like member R <b> 2 is positioned at the joining position J is set as a reference 0 (start position). A length substantially the same as the predetermined length Y of the sheet-like member R from the start position, for example, a length obtained by subtracting the correction length B from the predetermined length Y is set as the distance B1 for high-speed take-up, and the control device 7 Is input. In the control device 7, a distance B3 (fixed value) in the vicinity of the downstream sensor S4 from the downstream sensor S4 is input and set as the target position G. The distance B2 between the joining position J and the downstream sensor S4 is known.

先に搬送したシート状部材Ｒ１の後端部と、新たなシート状部材Ｒ２の前端部とを接合した後は、図５に例示するようにスタート位置から距離Ｂ１まで高速引き取り（速度Ｖｂ１）され、その後、図６に例示するように低速搬引き取り（速度Ｖｂ２）に切替えられて引き取られる。この低速引き取りは、下流側センサＳ４がシート状部材Ｒ２の後端部を検知するまで行われる。この検知後、図７に例示するように、より低速度の第２低速引き取り（速度Ｖｂ３）に切替えられて、シート状部材Ｒ２の後端部は目標位置Ｇに位置決めされる。   After joining the rear end portion of the sheet-like member R1 transported previously and the front end portion of the new sheet-like member R2, as shown in FIG. 5, it is taken up from the start position to the distance B1 (speed Vb1). Then, as illustrated in FIG. 6, it is switched to low speed carry-over (speed Vb <b> 2) and picked up. This low speed take-up is performed until the downstream sensor S4 detects the rear end of the sheet-like member R2. After this detection, as illustrated in FIG. 7, the second low-speed take-off (speed Vb3) is switched to a lower speed, and the rear end portion of the sheet-like member R2 is positioned at the target position G.

このように、接合した後のシート状部材Ｒ２の後端部を目標位置Ｇに位置決めする際の引き取りを、高速引き取り、低速引き取り、第２低速引き取りの３段階で行なうことによって、シート状部材Ｒの引き取り時間の増大を回避して短縮することができる。   Thus, the sheet-like member R2 is picked up at the target position G by performing the take-up when positioning the rear end portion of the sheet-like member R2 in the three stages of the high-speed take-up, the low-speed take-up, and the second low-speed take-up. Can be shortened by avoiding an increase in take-up time.

また、下流側センサＳ４がシート状部材Ｒの後端部を検知する直前と直後は、低速引き取りと第２低速引き取りとの切替えになり、しかも、第２低速引き取りは下流側センサＳ４から目標位置Ｇまでの短い距離となる。このように下流側センサＳ４がシート状部材Ｒの後端部を確実に検知し、その検知から目標位置Ｇに位置決めするまでのシート状部材Ｒの移送距離は、コンベヤベルトの滑りや伸び等の悪影響を受けることがないので、高い精度で位置決めを行なうことができる。   Further, immediately before and immediately after the downstream sensor S4 detects the rear end of the sheet-like member R, the low-speed take-up and the second low-speed take-off are switched, and the second low-speed take-off is performed from the downstream sensor S4 to the target position. Short distance to G. In this way, the downstream sensor S4 reliably detects the rear end of the sheet-like member R, and the transfer distance of the sheet-like member R from the detection to the positioning at the target position G is such as slipping or stretching of the conveyor belt. Since there is no adverse effect, positioning can be performed with high accuracy.

引き取り時間の短縮と位置決め精度の両立を考慮すると、例えば、高速引き取りの速度Ｖｂ１は１００ｍｍ／ｓ以上８００ｍｍ／ｓ以下、低速引き取りの速度Ｖａｂ２は２０ｍｍ／ｓ以上９９ｍｍ／ｓ以下、第２低速引き取りの速度Ｖｂ３は５ｍｍ／ｓ以上１９ｍｍ／ｓ以下に設定する。また、例えば、距離Ｂを１０ｍｍ以上２０ｍｍ以下、距離Ｂ２を５ｍｍ以上１０ｍｍ以下、距離Ｂ３を１ｍｍ以上１０ｍｍ以下に設定する。   Considering both reduction in take-up time and positioning accuracy, for example, high-speed take-off speed Vb1 is 100 mm / s to 800 mm / s, low-speed take-off speed Vab2 is 20 mm / s to 99 mm / s, and the second low-speed take-off The speed Vb3 is set to 5 mm / s or more and 19 mm / s or less. Further, for example, the distance B is set to 10 mm to 20 mm, the distance B2 is set to 5 mm to 10 mm, and the distance B3 is set to 1 mm to 10 mm.

次いで、後端部を目標位置Ｇに位置決めされたシート状部材Ｒ２は、引き戻しブラシ３ｃによって後端部を持ち上げられて、図９に例示するように予め設定された一定長さだけ移動させられる。この一定長さは、距離Ｂ２とＢ３との合計値に新たなシート状部材Ｒ３とのオーバーラップ長さ（０ｍｍ〜１ｍｍ程度）を加算した長さである。次いで、押圧部３ｂによりシート状部材Ｒ２、Ｒ３の端部どうしが接合される。   Next, the sheet-like member R2 whose rear end is positioned at the target position G is lifted by the pull-back brush 3c, and is moved by a predetermined length set in advance as illustrated in FIG. This fixed length is a length obtained by adding the overlap length (about 0 mm to 1 mm) with the new sheet-like member R3 to the total value of the distances B2 and B3. Next, the end portions of the sheet-like members R2 and R3 are joined by the pressing portion 3b.

このように、接合位置Ｊ、目標位置Ｇのそれぞれ近傍に配置した上流側センサＳ３、下流側センサＳ４によってシート状部材Ｒを検知することにより、接合するシート状部材Ｒがそれぞれ接合位置Ｊ、目標位置Ｇに正確に位置決めされているので、流体シリンダ等で予め設定された一定長さだけ移動する引き戻しブラシ３ｃと、押圧部３ｂとによって、シート状部材Ｒの端部どうしを高い生産性を維持しながら、ばらつきをなくして精度よく接合することが可能になる。   Thus, by detecting the sheet-like member R by the upstream sensor S3 and the downstream sensor S4 arranged in the vicinity of the joining position J and the target position G, the sheet-like member R to be joined becomes the joining position J and the target, respectively. Since it is accurately positioned at the position G, the end portions of the sheet-like member R are maintained at high productivity by the pull-back brush 3c that moves by a predetermined length set by a fluid cylinder or the like and the pressing portion 3b. However, it becomes possible to join with high accuracy without variation.

搬送コンベヤ２と引き取り装置４とを稼動させて上記の接合作業を連続的に行なう際には、引き取り装置４による高速引き取りの速度Ｖｂ１を、搬送コンベヤ２による高速搬送の速度Ｖａ１よりも高速に設定すると、作業サイクルが円滑になり生産性を向上させ易くなる。   When the above-mentioned joining operation is continuously performed by operating the conveyor 2 and the take-up device 4, the high-speed take-up speed Vb1 by the take-up device 4 is set higher than the high-speed transfer speed Va1 by the carry conveyor 2. Then, a work cycle becomes smooth and it becomes easy to improve productivity.

また、先に搬送したシート状部材Ｒ２と新たに搬送したシート状部材Ｒ３とを接合した際に、上流側センサＳ３または下流側センサＳ４によりシート状部材Ｒ２、Ｒ３の接合不良の有無を検知するようにすることもできる。即ち、上流側センサＳ３または下流側センサＳ４のセンサ光が透過すれば接合不良が有り、センサ光の透過しなければ接合不良が無いと判断できる。したがって、上流側センサＳ３または下流側センサＳ４の設置数を増やすことにより、接合不良の検知精度を向上させることができる。   Further, when the previously conveyed sheet-like member R2 and the newly conveyed sheet-like member R3 are joined, the upstream sensor S3 or the downstream sensor S4 detects the presence or absence of poor joining of the sheet-like members R2, R3. It can also be done. That is, it can be determined that there is a bonding failure if the sensor light from the upstream sensor S3 or the downstream sensor S4 is transmitted, and that there is no bonding failure if the sensor light is not transmitted. Therefore, by increasing the number of upstream sensors S3 or downstream sensors S4, it is possible to improve the detection accuracy of the bonding failure.

本発明のシート状部材の接合方法を実施する接合装置を例示する平面図である。It is a top view which illustrates the joining apparatus which enforces the joining method of the sheet-like member of the present invention. 図１の側面図である。It is a side view of FIG. 図２の接合機周辺の拡大図である。It is an enlarged view of the periphery of the joining machine of FIG. 本発明において接合する新たなシート状部材の搬送状態を例示する説明図である。It is explanatory drawing which illustrates the conveyance state of the new sheet-like member joined in this invention. 本発明において接合したシート状部材の後端部の位置決め手順を例示する説明図である。It is explanatory drawing which illustrates the positioning procedure of the rear-end part of the sheet-like member joined in this invention. 図５の次の手順を例示する説明図である。FIG. 6 is an explanatory diagram illustrating the next procedure of FIG. 5. 図６の次の手順を例示する説明図である。FIG. 7 is an explanatory diagram illustrating the next procedure of FIG. 6. 図７の次の手順を例示する説明図である。FIG. 8 is an explanatory diagram illustrating the next procedure of FIG. 7. 図８の次の手順を例示する説明図である。FIG. 9 is an explanatory diagram illustrating the next procedure of FIG. 8.

符号の説明Explanation of symbols

１ 接合装置
２ 搬送コンベヤ
２ａ 位置決めガイド
３ 接合機
３ａ 平板部
３ｂ 押圧部
３ｃ 引き戻しブラシ
４ 引き取り装置
５ 引き取り制御ローラ
６ 巻き取りシャフト
７ 制御装置
Ｓ１〜Ｓ５ センサ
Ｒ（Ｒ１〜Ｒ３） シート状部材 DESCRIPTION OF SYMBOLS 1 Joining device 2 Conveyor 2a Positioning guide 3 Joining machine 3a Flat plate part 3b Press part 3c Pull-back brush 4 Take-up device 5 Take-up control roller 6 Take-up shaft 7 Controller S1-S5 Sensor R (R1-R3) Sheet-like member

Claims (5)

所定長さのシート状部材を、搬送コンベヤにより所定位置まで高速搬送した後、低速搬送に切替えて、該シート状部材の前端部を接合位置に位置決めし、該シート部材の前端部と、先に搬送したシート状部材の後端部とを接合した後、この新たに接合したシート状部材の後端部を、引き取り装置により目標位置に位置決めする工程を繰り返し行なうシート状部材の接合方法において、前記接合位置近傍の接合位置を挟んだ搬送方向上流側と下流側とに、それぞれ上流側センサと下流側センサとを配置するとともに、該下流側センサ近傍に前記目標位置を設定し、シート状部材の前端部を接合位置に位置決めする際には、前記低速搬送を前記上流側センサが該シート状部材の前端部を検知するまで行ない、該検知後は前記低速搬送よりも低速度の第２低速搬送に切替えて、該シート状部材の前端部を接合位置に位置決めし、この新たに接合したシート状部材の後端部を前記目標位置に位置決めする際には、シート状部材の所定長さと略同じ長さを引き取り装置により高速引き取りした後、低速引き取りに切替えて、該低速引き取りを前記下流側センサが該シート状部材の後端部を検知するまで行ない、該検知の後は前記低速引き取りよりも低速度の第２低速引き取りに切替えて、該シート状部材の後端部を目標位置に位置決めし、該シート状部材を予め設定した一定長さ移動させてその後端部を、前記接合位置に位置決めしたシート部材の前端部に接合することを特徴とするシート状部材の接合方法。   After the sheet-shaped member having a predetermined length is conveyed at a high speed to a predetermined position by a conveying conveyor, the sheet-shaped member is switched to low-speed conveyance, and the front end of the sheet-shaped member is positioned at the joining position. In the joining method of the sheet-like member, after joining the rear end portion of the conveyed sheet-like member, the step of positioning the rear end portion of the newly joined sheet-like member at the target position by the take-up device is performed. An upstream sensor and a downstream sensor are respectively arranged on the upstream side and the downstream side in the conveying direction across the joining position in the vicinity of the joining position, and the target position is set in the vicinity of the downstream sensor. When positioning the front end portion at the joining position, the low speed conveyance is performed until the upstream sensor detects the front end portion of the sheet-like member, and after the detection, the speed is lower than that of the low speed conveyance. When switching to the second low-speed conveyance, the front end portion of the sheet-like member is positioned at the joining position, and the rear end portion of the newly joined sheet-like member is located at the target position, the predetermined position of the sheet-like member is determined. After picking up the length substantially the same as the length by the take-up device, switching to the low-speed take-up, the low-speed take-up is performed until the downstream sensor detects the rear end of the sheet-like member, and after the detection, Switch to the second low-speed take-off lower than the low-speed take-up, position the rear end of the sheet-like member at the target position, move the sheet-like member a predetermined length, the rear end, A method for joining sheet-like members, comprising joining to a front end portion of a sheet member positioned at a joining position. 前記搬送コンベヤの高速搬送の速度を１００ｍｍ／ｓ〜８００ｍｍ／ｓ、低速搬送の速度を２０ｍｍ／ｓ〜９９ｍｍ／ｓ、第２低速搬送の速度を５ｍｍ／ｓ〜１９ｍｍ／ｓに設定し、前記引き取り装置の高速引き取りの速度を１００ｍｍ／ｓ〜８００ｍｍ／ｓ、低速引き取りの速度を２０ｍｍ／ｓ〜９９ｍｍ／ｓ、第２低速引き取りの速度を５ｍｍ／ｓ〜１９ｍｍ／ｓに設定した請求項１に記載のシート状部材の接合方法。   The high-speed transfer speed of the transfer conveyor is set to 100 mm / s to 800 mm / s, the low-speed transfer speed is set to 20 mm / s to 99 mm / s, and the second low-speed transfer speed is set to 5 mm / s to 19 mm / s. The high-speed take-up speed of the apparatus is set to 100 mm / s to 800 mm / s, the low-speed take-up speed is set to 20 mm / s to 99 mm / s, and the second low-speed take-up speed is set to 5 mm / s to 19 mm / s. Joining method of sheet-like member. 前記引き取り装置の高速引き取りの速度を、前記搬送コンベヤの高速搬送の速度よりも高速に設定した請求項１または２に記載のシート状部材の接合方法。   The method for joining sheet-like members according to claim 1 or 2, wherein a high-speed take-up speed of the take-up device is set higher than a high-speed transfer speed of the transfer conveyor. 前記上流側センサと接合位置との間隔を１ｍｍ以上１０ｍｍ以下に設定し、前記下流側センサと目標位置との間隔を１ｍｍ以上１０ｍｍ以下に設定する請求項１〜３のいずれかに記載のシート状部材の接合方法。   The sheet shape according to any one of claims 1 to 3, wherein an interval between the upstream sensor and the joining position is set to 1 mm or more and 10 mm or less, and an interval between the downstream sensor and the target position is set to 1 mm or more and 10 mm or less. Member joining method. 前記上流側センサまたは下流側センサにより、先に搬送したシート状部材と新たに搬送したシート状部材とを接合した際の接合不良の有無を検知するようにした請求項１〜４のいずれかに記載のシート状部材の接合方法。   The presence or absence of a bonding failure when the previously conveyed sheet-like member and the newly conveyed sheet-like member are joined is detected by the upstream sensor or the downstream sensor. The joining method of the sheet-like member of description.

Images