JP2015131652A - Capping device and capping method - Google Patents

Capping device and capping method Download PDF

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JP2015131652A
JP2015131652A JP2014003319A JP2014003319A JP2015131652A JP 2015131652 A JP2015131652 A JP 2015131652A JP 2014003319 A JP2014003319 A JP 2014003319A JP 2014003319 A JP2014003319 A JP 2014003319A JP 2015131652 A JP2015131652 A JP 2015131652A
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cap
gripper
neck
mouth
container
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JP6279329B2 (en
Inventor
英明 村岡
Hideaki Muraoka
英明 村岡
笠井 秀樹
Hideki Kasai
秀樹 笠井
純 斉藤
Jun Saito
純 斉藤
重良 山田
Shigeyoshi Yamada
重良 山田
道夫 小松原
Michio Komatsubara
道夫 小松原
信博 杉本
Nobuhiro Sugimoto
信博 杉本
秀夫 土屋
Hideo Tsuchiya
秀夫 土屋
忠明 桐生
Tadaaki Kiryu
忠明 桐生
透 大石
Toru Oishi
透 大石
光治 濱高
Mitsuharu Hamataka
光治 濱高
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Seiko Corp
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Seiko Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a capping device and a method that securely seam a cap to a resin-made soft container.SOLUTION: There is provided a capping device 10 which attaches a cap 5 to a neck part 4 of a container body 2 through fitting, threadable engaging, and seaming processes, and the capping device includes a first gripper 31 which has a pair of gripper members arranged in a free opening/closing state to be positioned at a first opening position where tips of the gripper members are separated and a second grip position where a body part 3 of the container body is gripped to hold seaming torque for a cap chuck 20; and a second gripper 41 which is arranged in a free opening/closing state to be positioned at a second opening position where tips are separated and a second grip position where the container is gripped below a screw part of the neck part and positioned. The first and second grippers are adjustable individually in timing and opening/closing quantity of respective opening/closing movements, and the second gripper is positioned at the second grip position in the fitting process, and moved to the second opening position after the fitting process to avid interference between the cap chuck, driven in the threadable engaging and seaming processes, and the cap.

Description

本発明は、特に、スクイズボトルと称される樹脂製の軟質容器の口頚部にキャップを巻締めるために好適な施蓋装置および施蓋方法に関する。   The present invention particularly relates to a lid device and a lid method suitable for winding a cap around a mouth and neck of a soft resin container called a squeeze bottle.

充填包装業界等においては、樹脂製、ガラス製、金属製等の各種の容器の容器本体を搬送しながら内容物を定量充填し、その後にキャップを取り付けるキャッピングが行われている。   In the filling and packaging industry and the like, capping is performed in which the contents are quantitatively filled while transporting the container main body of various containers such as resin, glass, and metal, and then a cap is attached.

前記容器の一種に、ケチャップやマヨネーズ等のような粘性の高い内容物を入れる樹脂製の容器であって、内容物を押し出して使用できるようにスクイズ性(柔軟性)が付与されている有底の胴部と、上方に開口部を有し、前記胴部に一体形成された比較的剛性の高い口頚部と、からなる容器本体を備え、前記口頚部にはキャップが巻締めされる樹脂製の軟質容器(以下、スクイズボトルという)がある(特許文献1)。   One kind of the container is a resin container containing a highly viscous content such as ketchup or mayonnaise, and has a bottom having a squeeze (flexibility) so that the content can be extruded and used. A container body comprising an upper neck portion and an upper neck portion that has an opening at the top and is formed integrally with the trunk portion, and is made of a resin in which a cap is wound around the mouth neck portion. There is a soft container (hereinafter referred to as squeeze bottle) (Patent Document 1).

特開2011−235937号公報JP 2011-235937 A

容器本体の口頚部にキャップを巻締めるとき、口頚部にキャップを嵌合させるための位置決め(センタリング)を行ない、また、キャップを介して伝達される巻締めトルクを保持するべく、容器本体の胴部を把持することが行われている。   When the cap is tightened around the mouth and neck of the container body, positioning (centering) for fitting the cap to the mouth and neck is performed, and in addition, the body main body is held in order to maintain the tightening torque transmitted through the cap. The part is gripped.

ところが、容器本体を把持するとき、スクイズ性が付与されている胴部が撓んで座屈し、その結果、口頚部の中心が傾いてしまい、口頚部に対するキャップの嵌合が適正に行われず、キャッピング不良が発生することがあった。   However, when gripping the container body, the body part to which the squeeze property is imparted is bent and buckled. As a result, the center of the mouth and neck part is inclined, and the cap is not properly fitted to the mouth and neck part. Defects sometimes occurred.

この問題を解決するためには、比較的高い剛性で形成されている口頚部やその近傍を把持することで容器本体を支承した状態でキャップの巻締めを行うようにすればよいが、口頚部はキャップに被覆されるため、把持し続けることはできない。   In order to solve this problem, the cap neck may be tightened in a state where the container body is supported by gripping the mouth neck portion and its vicinity formed with relatively high rigidity. Since it is covered with a cap, it cannot continue to be gripped.

また、容器本体の口頚部にキャップを巻締めるには、口頚部のねじ部とキャップの内壁に形成されたねじ部とが噛合する噛合部に所定の巻締めトルクを付与することを要する。   Further, in order to wind the cap around the mouth / neck portion of the container body, it is necessary to apply a predetermined tightening torque to the meshing portion where the screw portion of the mouth / neck portion and the screw portion formed on the inner wall of the cap mesh.

そこで、本発明は、このような問題点に鑑みてなされたものであり、樹脂製の軟質容器に対するキャップの巻締めを確実に行うことができる施蓋装置および施蓋方法を提供することを目的とする。   Then, this invention is made | formed in view of such a problem, and it aims at providing the lid | cover apparatus and the lid | cover method which can perform the fastening of the cap with respect to a resin-made soft container reliably. And

前述した目的を達成するため、本発明の施蓋装置は、スクイズ性が付与された有底の胴部と、前記胴部に連接された前記胴部よりも剛性の高い口頚部とからなる容器本体の前記口頚部に対し、キャップを保持した状態で回転下降するキャップ保持部を備えたキャップチャックを用い、前記口頚部に形成されたねじ部の上先端部と前記キャップに形成されたねじ部の下先端部とを噛合させて前記口頚部に前記キャップを嵌合させる嵌合工程、前記口頚部のねじ部と前記キャップのねじ部とを螺合させる螺合工程、前記口頚部のねじ部と前記キャップのねじ部との間に所定の巻締めトルクを作用させて巻締めする巻締め工程を経て前記キャップを施す施蓋装置であって、一対のグリッパ部材を少なくとも、それぞれの先端部を前記容器本体を搬入・搬出可能に離間させた第1開放位置と、前記容器本体の胴部を把持して前記キャップチャックの巻締めトルクを保持する第1把持位置とに位置させるように開閉自在に配設された第1グリッパと、一対のグリッパ部材を少なくとも、それぞれの先端部を前記口頚部を搬入・搬出可能に離間させた第2開放位置と、前記口頚部におけるねじ部の下方を把持して位置決めする第2把持位置とに位置させるように開閉自在に配設された第2グリッパと、を備えており、前記第1グリッパおよび第2グリッパは、それぞれの開閉移動のタイミングおよび開閉量を個別に調整可能とされており、前記第2グリッパは、前記嵌合工程においては前記第2把持位置に位置し、前記嵌合工程後に前記第2開放位置へ移動して螺合工程および巻締め工程において駆動するキャップチャックおよびキャップチャックに保持されたキャップとの干渉を回避するように構成されていることを特徴とする。   In order to achieve the above-mentioned object, the lid device of the present invention is a container comprising a bottomed body part provided with squeezing property and a mouth and neck part having rigidity higher than that of the body part connected to the body part. Using a cap chuck provided with a cap holding portion that rotates and descends while holding the cap with respect to the mouth-and-neck portion of the main body, an upper tip portion of a screw portion formed in the mouth-and-neck portion and a screw portion formed in the cap A fitting step in which the cap is fitted to the mouth-neck portion by meshing with a lower tip portion, a screwing step in which a screw portion of the mouth-neck portion and a screw portion of the cap are screwed, a screw portion of the mouth-neck portion And a cap device for applying the cap through a tightening process in which a predetermined tightening torque is applied between the cap and the threaded portion of the cap. Loading the container body A first opening position that is separated so as to be able to be carried out and a first holding position that holds the body portion of the container main body and holds the tightening torque of the cap chuck are arranged to be openable and closable. A first gripper and a pair of gripper members, and at least a second open position in which each tip end portion is separated so as to be able to carry in and out the mouth-neck portion; And a second gripper disposed so as to be openable and closable so as to be positioned at a gripping position, and the first gripper and the second gripper can individually adjust the timing and the amount of opening and closing of each of the first and second grippers. The second gripper is located at the second gripping position in the fitting step, and moves to the second opening position after the fitting step to perform the screwing step and the tightening step. Characterized in that it is configured to avoid interference with the cap held by the cap chuck and the cap chuck drive.

またさらに、前記第1グリッパは、さらに、第1把持位置における容器本体の把持力よりも、さらに大きな把持力を以て把持可能なトルク把持位置に位置させるように構成されていることを特徴とする。   Furthermore, the first gripper is further configured to be positioned at a torque gripping position where gripping can be performed with a gripping force larger than the gripping force of the container body at the first gripping position.

なお、前記第1グリッパおよび第2グリッパの開閉移動は、前記ボトルキャッパの駆動を制御する制御手段等を利用して駆動のタイミング等を制御してもよいし、ボトルキャッパの高さ位置を検出するセンサ等を配設し、その検出結果に基づいて電気的に駆動制御してもよい。また、位置検出後回転を止めるクラッチ装置を配設する等、機械的な制御を含んでもよい。   The opening and closing movements of the first gripper and the second gripper may be controlled by using a control means for controlling the driving of the bottle capper or the like, or may be controlled by a sensor that detects the height position of the bottle capper. And the like, and the electric drive control may be performed based on the detection result. Further, mechanical control such as providing a clutch device for stopping rotation after position detection may be included.

また、本発明のキャップの施蓋方法は、スクイズ性が付与された有底の胴部と、前記胴部に連接され、前記胴部よりも剛性の高い口頚部とからなる容器本体の前記口頚部に対し、キャップを保持した状態で回転下降するキャップ保持部を備えたキャップチャックを用い、前記口頚部に形成されたねじ部の上先端部と前記キャップに形成されたねじ部の下先端部とを噛合させて前記口頚部に前記キャップを嵌合させる嵌合工程、前記口頚部のねじ部と前記キャップのねじ部とを螺合させる螺合工程、前記口頚部のねじ部と前記キャップのねじ部との間に所定のトルクを作用させて巻締めする巻締め工程を経て前記キャップを施す施蓋方法であって、前記各工程において、前記胴部を把持可能とされた一対のグリッパを備える第1グリッパにより容器本体を支承するとともに、前記嵌合工程においては、前記容器本体の口頚部におけるねじ部の下方を把持可能とされた一対のグリッパ部材を備える第2グリッパにより、前記ねじ部の下方を把持して前記口頚部を位置決めし、前記嵌合工程後には、第2グリッパの一対のグリッパ部材の相互の先端を離間させ、続く螺合工程および巻締め工程において駆動する前記キャップチャックおよび前記キャップチャックに保持されたキャップとの干渉を回避させることを特徴とする。   In addition, the method of covering the cap according to the present invention includes the mouth of the container main body including a bottomed body portion to which squeezing property is imparted and a mouth and neck portion connected to the body portion and having rigidity higher than the body portion. Using a cap chuck provided with a cap holding part that rotates and descends while holding the cap with respect to the neck part, an upper tip part of a screw part formed on the mouth neck part and a lower tip part of a screw part formed on the cap A fitting step of fitting the cap to the mouth-neck portion, a screwing step of screwing the screw portion of the mouth-neck portion and the screw portion of the cap, and the screw portion of the mouth-neck portion and the cap A lid application method for applying the cap through a tightening process in which a predetermined torque is applied between the screw part and a screw part, wherein a pair of grippers capable of gripping the body part are provided in each process. By the first gripper provided The container body is supported, and in the fitting step, the lower part of the screw part is gripped by a second gripper provided with a pair of gripper members capable of gripping the lower part of the screw part in the mouth-neck part of the container body. Positioning the mouth-and-neck portion, and after the fitting step, the tips of the pair of gripper members of the second gripper are separated from each other, and the cap chuck and the cap chuck that are driven in the subsequent screwing step and winding step It is characterized by avoiding interference with the held cap.

このように、本発明の施蓋装置および施蓋方法によれば、軟質な容器であっても、キャップ時の口頚部の傾きを防止し、確実にキャッピングを施すことができ、歩留りも向上させることが可能となる。   As described above, according to the lid device and the lid method of the present invention, even if it is a soft container, it is possible to prevent the tilt of the mouth-and-neck portion at the time of the cap, to perform capping reliably, and to improve the yield. It becomes possible.

本発明の施蓋装置の要部におけるキャップの嵌合前の状態を示す説明図Explanatory drawing which shows the state before the cap fitting in the principal part of the lid | cover apparatus of this invention. 本発明の施蓋装置の要部におけるキャップの巻締め時の状態を示す説明図Explanatory drawing which shows the state at the time of the cap tightening in the principal part of the lid | cover apparatus of this invention 第1開放位置における第1グリッパと容器本体との位置関係を示す平面図The top view which shows the positional relationship of the 1st gripper and container main body in a 1st open position. 第1把持位置における第1グリッパと容器本体との位置関係を示す平面図The top view which shows the positional relationship of the 1st gripper and container main body in a 1st holding position. 第2開放位置における第2グリッパとキャップ保持部との位置関係を示す平面図The top view which shows the positional relationship of the 2nd gripper and cap holding | maintenance part in a 2nd open position. 第2把持位置における第2グリッパとキャップ保持部との位置関係を示す平面図The top view which shows the positional relationship of the 2nd gripper and cap holding | maintenance part in a 2nd holding position. トルク把持位置における第1グリッパと容器本体との位置関係を示す平面図The top view which shows the positional relationship of a 1st gripper and a container main body in a torque holding position.

以下、本発明に係る施蓋装置および施蓋方法について、図1乃至図7を参照して説明する。   Hereinafter, a covering device and a covering method according to the present invention will be described with reference to FIGS.

図1および図2に示す本実施形態の施蓋装置10は、いわゆるスクイズボトル1の容器本体2に対するキャップ5の巻締めに好適に構成された装置である。   1 and 2 is an apparatus suitably configured to wind a cap 5 around a container body 2 of a so-called squeeze bottle 1.

ここで、本実施形態において使用するスクイズボトル1は、容器本体2とこれに装着されるキャップ5とからなり、容器本体2は、液状調味料等の充填物を押し出して使用できるように樹脂等により柔らかく撓むように形成されている有底の胴部3と、胴部3の頂部に連接され、胴部3の頂部の平面径よりも小径の断面径で硬質に形成された円筒状の口頚部4とから構成されている。口頚部4の開口側の外周には、キャップ5の開口部内壁に形成された不図示のねじ部(雌ねじ)と螺合し、口頚部4にキャップ5を巻締めるための不図示のねじ部(雄ねじ)が形成されている。   Here, the squeeze bottle 1 used in the present embodiment includes a container main body 2 and a cap 5 attached to the container main body 2. The container main body 2 is made of resin or the like so as to be used by extruding a filling such as a liquid seasoning. A bottomed body 3 formed so as to bend softly, and a cylindrical mouth-and-neck part connected to the top of the body 3 and having a cross-sectional diameter smaller than the planar diameter of the top of the body 3 4. A screw part (not shown) for screwing the cap 5 around the mouth / neck part 4 is screwed onto an outer periphery on the opening side of the mouth / neck part 4 with a screw part (not shown) formed on the inner wall of the opening of the cap 5. (Male thread) is formed.

そして、本実施形態の施蓋装置10は、モータ(不図示)により回転駆動する回転鉛直軸RSの軸周りにおける上下位置に、回転鉛直軸RSの回転によって共に回転するように水平に配設された上方回転円板(不図示)と下方回転円板11とを有している。   The lid covering device 10 according to the present embodiment is horizontally disposed so as to rotate together with the rotation of the rotating vertical axis RS at the vertical position around the rotating vertical axis RS rotated by a motor (not shown). The upper rotating disk (not shown) and the lower rotating disk 11 are provided.

下方回転円板11の上面の円周上には、容器本体2を載置させる容器載置位置12が等間隔に複数形成されており、各容器載置位置12に対応させて、第1グリッパ駆動装置30の第1グリッパ31が配設されている。   A plurality of container placement positions 12 on which the container body 2 is placed are formed at equal intervals on the circumference of the upper surface of the lower rotating disc 11, and the first gripper is associated with each container placement position 12. A first gripper 31 of the driving device 30 is disposed.

第1グリッパ駆動装置30は、各容器載置位置12に搬入された容器本体2をセンタリングするとともに、キャッパの巻締めトルクを保持する、すなわち、後述するキャップチャック20の回転駆動機構によって付与される所定の巻締めトルクをキャップ5と口頚部4(容器本体2)との間に作用させるべく容器本体2の胴部3を把持する第1グリッパ31を備えている。第1グリッパ31は、図3および図4に示すように、回転鉛直軸RSの軸回りに回動自在に水平保持された一対のグリッパ部材32A,32Bを有している。各グリッパ部材32A,32Bは各容器載置位置12を挟んで左右対称に構成されており、その先端部には互いに向かい合う略半円形状の円弧状の係合凹部33A,33Bが形成されている。本実施形態において、係合凹部33A,33Bは容器本体2の胴部3における口頚部近傍(肩部)の外周面を把持可能な形状に形成されている。また、各グリッパ部材32A,32Bの基端部は、下方回転円板11に鉛直方向に支持された回動軸34A,34Bにそれぞれ取付けられ、回動軸34A,34Bの軸回りに回動自在に支承されている。   The first gripper driving device 30 centers the container body 2 carried into each container mounting position 12 and holds the winding torque of the capper, that is, is provided by a rotation driving mechanism of the cap chuck 20 described later. A first gripper 31 is provided for gripping the body portion 3 of the container body 2 so as to apply a predetermined tightening torque between the cap 5 and the neck 4 (container body 2). As shown in FIGS. 3 and 4, the first gripper 31 has a pair of gripper members 32 </ b> A and 32 </ b> B that are horizontally held so as to be rotatable about the rotation vertical axis RS. The gripper members 32A and 32B are configured to be bilaterally symmetric with respect to the container placement position 12, and substantially semicircular arc-shaped engaging recesses 33A and 33B facing each other are formed at the front ends thereof. . In the present embodiment, the engaging recesses 33 </ b> A and 33 </ b> B are formed in a shape capable of gripping the outer peripheral surface of the trunk 3 of the container body 2 in the vicinity of the mouth and neck (shoulder). Further, the base end portions of the gripper members 32A and 32B are respectively attached to the rotation shafts 34A and 34B supported in the vertical direction on the lower rotation disc 11, and are rotatable about the axes of the rotation shafts 34A and 34B. It is supported by.

下方回転円板11より下方に突出させた一方の回動軸34Aの下端部にはレバー(不図示)が固着されており、レバーの先端部には、施蓋装置10に固定側として配設されている第1グリッパ用のカム(不図示)のカム溝内に係合するカムフォロア(不図示)が回転自在に取付けられている。   A lever (not shown) is fixed to the lower end portion of one rotating shaft 34A that protrudes downward from the lower rotating disk 11, and is disposed on the lid device 10 as a fixed side at the distal end portion of the lever. A cam follower (not shown) that engages in a cam groove of a cam for the first gripper (not shown) is rotatably attached.

また、各回動軸34A,34Bには互いに噛合する歯車(不図示)がそれぞれ配設されており、前記カムフォロアが前記カム溝内を移動することにより、一方の回動軸34Aを回転させるとともに、前記歯車を介して他方の回転軸34Bを回転させ、各グリッパ部材32A,32Bを、容器載置位置12において、スクイズボトル1の容器本体2を搬入・搬出可能に離間させた第1開放位置OP1(図3参照)と、各グリッパ部材42A,42B間に搬入された容器本体2の胴部3を把持してセンタリングするとともに、キャップチャック20の巻締めトルクを保持する第1把持位置HP1(図4参照)とを開閉移動自在とされている。   In addition, gears (not shown) that mesh with each other are arranged on the respective rotation shafts 34A, 34B, and when the cam follower moves in the cam groove, one rotation shaft 34A is rotated, The other rotation shaft 34B is rotated via the gear, and the first open position OP1 in which the gripper members 32A and 32B are separated at the container placement position 12 so that the container body 2 of the squeeze bottle 1 can be carried in and out. (Refer to FIG. 3) and the first gripping position HP1 (FIG. 3) that grips and centers the barrel 3 of the container body 2 carried between the gripper members 42A and 42B, and holds the tightening torque of the cap chuck 20. 4) can be opened and closed freely.

図1および図2に戻り、前記上方回転円板には、容器載置位置12に立位状態で搬入された充填済みの容器本体2の口頚部4に対し、保持したキャップ5を巻き締めするキャップチャック20を備えている。キャップチャック20は、キャップ5を保持するキャップ保持部21と、このキャップ保持部21内のキャップ5を容器本体2の口頚部4に接離させる方向に昇降移動させる昇降動作機構(不図示)と、キャップ保持部21を軸回り方向に回転駆動する回転駆動機構(不図示)とが設けられた公知の構成とされ、キャップ保持部21内のキャップ5を容器載置位置12に載置された容器本体2の口頚部4に対して接離させるように位置合わせして配設されている。   Returning to FIG. 1 and FIG. 2, the held cap 5 is wrapped around the upper neck of the container body 2 that has been loaded into the container mounting position 12 in a standing state on the upper rotating disk. A cap chuck 20 is provided. The cap chuck 20 includes a cap holding portion 21 that holds the cap 5, and an elevating operation mechanism (not shown) that moves the cap 5 in the cap holding portion 21 up and down in a direction in which the cap 5 is brought into and out of contact with the neck 4 of the container body 2. The cap holder 21 is provided with a rotation drive mechanism (not shown) for rotating the cap holder 21 around the axis, and the cap 5 in the cap holder 21 is placed at the container placement position 12. The container body 2 is positioned and arranged so as to be in contact with and away from the neck 4 of the container body 2.

また、前記上方回転円板の下面には、下方回転円板11における容器載置位置12と対応させて、第2グリッパ駆動装置40が配設されている。   A second gripper driving device 40 is disposed on the lower surface of the upper rotating disk so as to correspond to the container placement position 12 in the lower rotating disk 11.

第2グリッパ駆動装置40は、各容器載置位置12に搬入された容器本体2をキャップチャック20の下降位置に合わせてセンタリングするとともに、キャップ5が嵌合される口頚部4をその傾斜を防止するべく把持する第2グリッパ41を備えている。第2グリッパ41は、図5および図6に示すように、鉛直軸回りに回動自在に水平保持された一対のグリッパ部材42A,42Bを有している。各グリッパ部材42A,42Bは各容器載置位置12を挟んで左右対称に構成されており、その先端部には互いに向かい合う略半円形状の円弧状の係合凹部43A,43Bが形成されている。本実施形態において、係合凹部43A,43Bは容器本体2の口頚部4の外周面を把持可能な形状に形成されている。また、各グリッパ部材42A,42Bの基端部は、鉛直方向に支持された回動軸44A,44Bにそれぞれ取付けられ、回動軸44A,44Bの軸回りに回動自在に支承されている。   The second gripper driving device 40 centers the container body 2 carried into each container placement position 12 according to the lowered position of the cap chuck 20, and prevents the neck 4 of the cap 5 from being inclined. A second gripper 41 for gripping as much as possible is provided. As shown in FIGS. 5 and 6, the second gripper 41 has a pair of gripper members 42 </ b> A and 42 </ b> B that are horizontally held so as to be rotatable about a vertical axis. Each gripper member 42A, 42B is configured to be bilaterally symmetric with respect to each container placement position 12, and substantially semicircular arcuate engagement recesses 43A, 43B facing each other are formed at the front end portions thereof. . In the present embodiment, the engagement recesses 43 </ b> A and 43 </ b> B are formed in a shape capable of gripping the outer peripheral surface of the mouth / neck portion 4 of the container body 2. Further, the base end portions of the gripper members 42A and 42B are respectively attached to the rotation shafts 44A and 44B supported in the vertical direction, and are supported so as to be rotatable around the rotation shafts 44A and 44B.

そして、前記上方回転円板より上方に突出させた一方の回動軸44Aの上端部にはレバー(不図示)が固着されており、 レバーの先端部には、該施蓋装置1に固定側として配設されている第2グリッパ用のカム(不図示)のカム溝内に係合するカムフォロア(不図示)が回転自在に取付けられている。各回動軸44A,44Bには互いに噛合する歯車(不図示)がそれぞれ配設されており、前記カムフォロアがカム溝内を移動することによって、一方の回動軸44Aを回転させるとともに、歯車を介して他方の回転軸44Bを回転させ、各グリッパ部材42A,42Bを、容器載置位置12において、スクイズボトル1の容器本体2の口頚部4を搬入・搬出可能に離間させた第2開放位置OP2(図5参照)と、各グリッパ部材42A,42B間に搬入された容器本体2の口頚部4におけるねじ部の下方を把持して口頚部4を位置決めする第2把持位置(図6参照)とを開閉移動するように構成されている。   A lever (not shown) is fixed to the upper end portion of one rotating shaft 44A that protrudes upward from the upper rotating disk, and the end of the lever is fixed to the lid device 1 as a fixed side. A cam follower (not shown) that engages in a cam groove of a cam (not shown) for the second gripper that is disposed is rotatably attached. Each of the rotating shafts 44A and 44B is provided with a gear (not shown) that meshes with each other. When the cam follower moves in the cam groove, the rotating shaft 44A is rotated and the gears are interposed. The other rotation shaft 44B is rotated, and the gripper members 42A and 42B are separated from each other at the container placement position 12 so that the neck 4 of the container body 2 of the squeeze bottle 1 can be loaded and unloaded. (See FIG. 5), and a second gripping position (see FIG. 6) for positioning the mouth-and-neck portion 4 by gripping the lower portion of the screw portion in the mouth-and-neck portion 4 of the container body 2 carried between the gripper members 42A and 42B. Is configured to open and close.

本実施形態においては、第1グリッパ31のカムフォロアが係合するカム溝、第2グリッパ41のカムフォロアが係合するカム溝はそれぞれ、容器本体2の搬送経路における一定長領域に形成された巻締作業領域において、第1グリッパ31の各グリッパ部材32A,32B、第2グリッパ41の各グリッパ部材42A,42Bの開閉動作のタイミングと開閉量に合わせて形成されている。   In the present embodiment, the cam groove with which the cam follower of the first gripper 31 is engaged and the cam groove with which the cam follower of the second gripper 41 is engaged are each formed by a fixed length region in the conveyance path of the container body 2. In the work area, the gripper members 32A and 32B of the first gripper 31 and the gripper members 42A and 42B of the second gripper 41 are formed according to the timing and amount of opening and closing.

そして、回転鉛直軸RSの回転により、巻締作業領域において、前記上方回転円板、下方回転円板11の回転に伴ってそれぞれのカムフォロアがカム溝内を転動することにより、前記レバーによって一方の回動軸34A,44Aが正逆回転し、互いに噛合している一対の歯車によって他方の回動軸34B、44Bを同期させて逆方向に回転させ、各グリッパ32、42を所望の移動量で開閉させるように構成されている。   Then, the rotation of the rotary vertical shaft RS causes the cam followers to roll in the cam grooves in accordance with the rotation of the upper rotating disc and the lower rotating disc 11 in the tightening work region, so that one of the cam followers is rotated by the lever. The rotating shafts 34A and 44A rotate in the forward and reverse directions, and the other rotating shafts 34B and 44B are rotated in the reverse direction by a pair of gears meshed with each other, whereby each gripper 32 and 42 is moved in a desired amount. It is configured to open and close.

なお、本実施形態において、容器本体2の搬入は巻締作業領域より上流、搬出は巻締作業領域より下流となる、容器載置位置12の回転軌道上で行なう。   In the present embodiment, the container main body 2 is carried in on the rotation trajectory at the container placement position 12, which is upstream from the winding work area and is carried out downstream from the winding work area.

そして、本実施形態の施蓋装置10は、スクイズボトル1に対する施蓋の各工程を実行するキャップチャック20の駆動や回転鉛直軸RSの駆動を制御する不図示の制御部を備えており、巻締作業領域において、キャップチャック20の駆動とリンクさせて、回転鉛直軸RSの回転による第1グリッパ31および第2グリッパ41の開閉を調整可能に構成されている。   The covering device 10 according to the present embodiment includes a control unit (not shown) that controls the driving of the cap chuck 20 and the rotation of the rotary vertical axis RS for performing each step of covering the squeeze bottle 1. In the tightening work area, the opening and closing of the first gripper 31 and the second gripper 41 by the rotation of the rotary vertical axis RS can be adjusted by linking with the drive of the cap chuck 20.

このような構成の施蓋装置であれば、キャップチャック20は巻締作業領域内において巻締めを行うように制御し、容器本体2の口頚部4にキャップ5を嵌合させる際に、第2グリッパ41のグリッパ部材42A,42Bは第2把持位置に位置してねじ部の直下を支承し、センタリングをおこない、第1グリッパ31のグリッパ部材32A,32Bは第1把持位置に位置して容器本体2の胴部3を支承し、また、キャップ5が容器本体2のねじ部に沿って螺合され、下降し始める前に、第2グリッパ41のグリッパ部材42A,42Bは第2開放位置へ移動し、キャップチャック20によるキャップ5の巻締めを許容するように調整することができる。   If it is a lid | cover apparatus of such a structure, the cap chuck | zipper 20 will be controlled so that it may wind in the winding work area | region, and when the cap 5 is fitted to the mouth neck part 4 of the container main body 2, it is 2nd. The gripper members 42A and 42B of the gripper 41 are positioned at the second gripping position and support the screw portion directly below, and perform centering. The gripper members 32A and 32B of the first gripper 31 are positioned at the first gripping position and are container bodies. The gripper members 42A and 42B of the second gripper 41 are moved to the second open position before the cap 5 is screwed along the threaded portion of the container body 2 and starts to descend. The cap chuck 20 can be adjusted to allow the cap 5 to be tightened.

以下では、本実施形態の施蓋装置10の動作(本発明の施蓋方法)を具体的に説明する。   Below, operation | movement (the lid | cover method of this invention) of the lid | cover apparatus 10 of this embodiment is demonstrated concretely.

前述のように、本実施形態の施蓋装置10においては、下方回転円板11の上面の円周上に容器載置位置12が複数形成されており、容器載置位置12の回転軌道となる円の一部が容器本体2の搬送経路とされ、その搬送経路の一定長領域が巻締作業領域として利用されている。そして、容器本体2の搬入は巻締作業領域より上流、搬出は巻締作業領域より下流の前記容器載置位置12の回転軌道上で行なう。   As described above, in the lidding device 10 of the present embodiment, a plurality of container placement positions 12 are formed on the circumference of the upper surface of the lower rotating disc 11, and become a rotation trajectory of the container placement position 12. A part of the circle is used as a conveyance path for the container body 2, and a fixed length area of the conveyance path is used as a winding work area. Then, the container main body 2 is carried in on the rotation trajectory of the container placement position 12 upstream from the winding work area and carried out in the downstream from the winding work area.

本実施形態の施蓋装置10の巻締作業領域においては、容器本体2の口頚部4に形成されたねじ部の上先端部とキャップ5に形成されたねじ部の下先端部とを噛合させてキャップ5を容器本体2の口頚部4に嵌合させる嵌合工程、口頚部4のねじ部とキャップのねじ部とを螺合させる螺合工程、口頚部4のねじ部5とキャップのねじ部との間に所定のトルクを作用させて巻締めする巻締め工程を順に実行する。   In the winding operation region of the lid covering device 10 of the present embodiment, the upper tip portion of the screw portion formed on the neck portion 4 of the container body 2 and the lower tip portion of the screw portion formed on the cap 5 are engaged with each other. The fitting process for fitting the cap 5 to the neck 4 of the container body 2, the screwing process for screwing the screw part of the mouth neck 4 and the screw part of the cap, the screw part 5 of the mouth neck 4 and the screw of the cap A tightening step of tightening by applying a predetermined torque to the portion is executed in order.

そのため、本実施形態の施蓋装置10は、巻締作業領域に対応する部分における前記カムのカム溝を、前記上方回転円板、下方回転円板11の回転に伴ってそれぞれのカムフォロアがカムのカム溝内を転動させることにより、第1グリッパ31および第2グリッパ41の各レバーによって一方の回動軸34A,44Aを正逆回転させ、互いに噛合している一対の歯車によって他方の回動軸34B、44Bを同期させて前記一方の回転軸34A,44Aとは逆方向に回転させ、それぞれのグリッパ部材32A,32B、42A,42Bを所望の移動量で開閉させるように形成しておく。   For this reason, the cover device 10 of the present embodiment is configured such that the cam followers of the cams in the portions corresponding to the winding work area are camped by the cam followers as the upper rotating disc and the lower rotating disc 11 rotate. By rotating in the cam groove, one of the rotation shafts 34A and 44A is rotated forward and backward by the levers of the first gripper 31 and the second gripper 41, and the other is rotated by a pair of gears engaged with each other. The shafts 34B and 44B are synchronized and rotated in the opposite direction to the one of the rotation shafts 34A and 44A, so that the gripper members 32A, 32B, 42A and 42B are opened and closed with a desired movement amount.

前記制御部は、回転鉛直軸RS、すなわち、前記上方回転円板および下方回転円板11の回転速度とキャップチャック20の動作速度とを常にリンクさせ、容器載置位置12に載置された容器本体2が巻締作業領域を通過する間に、所望のキャップ5の巻締めが完了しているように制御する。   The control unit always links the rotation vertical axis RS, that is, the rotation speed of the upper rotation disk and the lower rotation disk 11 and the operation speed of the cap chuck 20, and the container placed at the container placement position 12. While the main body 2 passes through the tightening work area, control is performed so that the desired cap 5 is completely tightened.

このとき、巻締作業領域の上流側において、第1グリッパ31の一対のグリッパ部材32A,32Bが第1開放位置OP1にあり、第2グリッパ41の一対のグリッパ部材42A,42Bが第2開放位置OP2にある状態で、充填済みの容器本体2を下方回転円板11上の容器載置位置12に立位状態で搬入する。   At this time, on the upstream side of the winding work area, the pair of gripper members 32A and 32B of the first gripper 31 are in the first opening position OP1, and the pair of gripper members 42A and 42B of the second gripper 41 are in the second opening position. In the state of OP2, the filled container body 2 is carried into the container placement position 12 on the lower rotating disc 11 in a standing state.

引き続きの回転鉛直軸RSの回転に伴なう前記上方回転円板および下方回転円板11の回転により、容器本体2が搬送経路を搬送されていく途中において、巻締作業領域に至るまでは、第1グリッパ31のレバーに配設されたカムフォロアを固定側の第1グリッパ用のカムのカム溝内を転動させることにより、グリッパ部材32A,32Bをそれぞれ回動軸34A,34Bを中心にして各グリッパ部材32A,32B間を閉じる方向へ回動させ、容器本体2の胴部(肩部)3をその容器外形を変形させない程度に把持して、容器本体2の立位状態をガイド可能な第1把持位置HP1へ位置させる。これにより、容器本体2の口頚部4をキャップチャック20の下降位置に合わせてセンタリングした状態で、容器本体2を搬送することができる。   Until the container main body 2 is transported through the transport path by the rotation of the upper rotating disk and the lower rotating disk 11 following the rotation of the rotating vertical axis RS, The cam follower disposed on the lever of the first gripper 31 rolls within the cam groove of the cam for the first gripper on the fixed side, so that the gripper members 32A and 32B are centered on the rotation shafts 34A and 34B, respectively. The gripper members 32A and 32B are rotated in a closing direction, and the body (shoulder) 3 of the container main body 2 is gripped to such an extent that the outer shape of the container is not deformed to guide the standing state of the container main body 2. Position to the first gripping position HP1. Thereby, the container main body 2 can be conveyed in the state which centered the mouth neck part 4 of the container main body 2 in accordance with the lowered position of the cap chuck 20.

巻締作業領域に入ると、図1に示すように、第1グリッパ31による容器本体2の把持を持続させるとともに、第2グリッパ41のレバーに配設されたカムフォロアを固定側のカムのカム溝内を転動させることにより、各グリッパ部材42A,42Bをそれぞれ回動軸44A,44Bを中心にして各グリッパ部材42A,42B間を閉じる方向へ回動させ、第2把持位置HP2に位置させる。これにより、第2グリッパ41は容器本体2の口頚部4におけるねじ部の下方を把持し、前記第1グリッパ31とともに、容器本体2の座屈と、キャップ5が嵌合される口頚部4の傾斜を防止する。   When entering the winding work area, as shown in FIG. 1, the holding of the container body 2 by the first gripper 31 is continued, and the cam follower disposed on the lever of the second gripper 41 is fixed to the cam groove of the fixed cam. By rolling the inside, the gripper members 42A and 42B are rotated about the rotation shafts 44A and 44B in the closing direction between the gripper members 42A and 42B, and are positioned at the second gripping position HP2. As a result, the second gripper 41 grips the lower part of the threaded portion of the mouth-and-neck portion 4 of the container body 2 and, together with the first gripper 31, the buckling of the container body 2 and the mouth-and-neck portion 4 to which the cap 5 is fitted. Prevent tilting.

そして、容器載置位置12に搬入された容器本体2を第1グリッパ31及び第2グリッパ41で把持した状態で、キャップチャック20の前記昇降動作機構と前記回転駆動機構を駆動させ、キャップ保持部21に把持されたキャップ5を回転下降させる。   Then, in a state where the container main body 2 carried into the container mounting position 12 is gripped by the first gripper 31 and the second gripper 41, the elevating operation mechanism and the rotation driving mechanism of the cap chuck 20 are driven, and the cap holding portion The cap 5 held by 21 is rotated and lowered.

キャップ保持部21に下方へ開口部を向けるようにして保持されたキャップ5は、前記昇降動作機構と前記回転駆動機構の駆動により回転下降し、容器本体2の口頚部4に形成されたねじ部の上先端部とキャップ5に形成されたねじ部の下先端部とを噛合させてキャップ5を容器本体2の口頚部4に嵌合させる(嵌合工程)。なお、嵌合工程におけるキャップチャック20の駆動は、容器本体2の口頚部4に形成されたねじ部の上先端部とキャップ5に形成されたねじ部の下先端部との噛合位置を探るように、逆回転(キャップは上昇)と正回転(キャップは下降)とを組み合わせた駆動方法も採択できる。   The cap 5 held so that the opening is directed downward to the cap holding portion 21 is rotated and lowered by the driving of the ascending / descending operation mechanism and the rotation driving mechanism, and a screw portion formed in the mouth / neck portion 4 of the container body 2. The cap 5 is fitted to the mouth-and-neck portion 4 of the container main body 2 by meshing the upper tip portion with the lower tip portion of the screw portion formed on the cap 5 (fitting step). The cap chuck 20 is driven in the fitting process so as to find the meshing position between the upper tip portion of the screw portion formed on the neck 4 of the container body 2 and the lower tip portion of the screw portion formed on the cap 5. In addition, a driving method combining reverse rotation (cap is raised) and forward rotation (cap is lowered) can also be adopted.

本実施形態においては、この嵌合が完了したタイミングで、図2に示すように、第2グリッパ41のグリッパ部材42A,42Bを、回動軸44A,44Bを中心に、各グリッパ部材42A,42B間を開く方向へ回動させて、キャップ保持部21の昇降動作を妨げることがないように、つまり、下降するキャッパ保持部21との干渉を回避するように、第2開放位置OP2へ位置させる。   In the present embodiment, at the timing when the fitting is completed, as shown in FIG. 2, the gripper members 42A and 42B of the second gripper 41 are arranged around the rotation shafts 44A and 44B. It is moved to the second opening position OP2 so as not to interfere with the raising / lowering operation of the cap holding part 21, that is, to avoid the interference with the descending capper holding part 21. .

続いて、さらにキャップ5を回転下降させて、キャップ5のねじ部と容器本体2の口頚部4に形成されたねじ部とを螺合させ(螺合工程)、さらには、所定の巻締めトルクでキャップ5の巻締めを実行する(巻締め工程)。   Subsequently, the cap 5 is further rotated and lowered, and the screw portion of the cap 5 and the screw portion formed on the mouth neck portion 4 of the container body 2 are screwed together (screwing step), and further, a predetermined tightening torque Then, the cap 5 is tightened (winding step).

巻締作業領域において少なくとも上記嵌合工程、螺合工程および巻締め工程を終わらせ、所定のトルクを掛けて巻締めを行ったところで、キャップチャック20を駆動させ、キャップチャック20のキャップ保持部21からキャップ5を開放させるとともに、上昇させる。   When at least the fitting process, the screwing process, and the tightening process are completed in the winding work area, and the tightening is performed by applying a predetermined torque, the cap chuck 20 is driven, and the cap holding portion 21 of the cap chuck 20 is driven. The cap 5 is opened and raised.

この後、巻締作業領域の下流側において、第1グリッパ31のグリッパ部材32A,32Bを、回動軸34A,34Bを中心に、各グリッパ部材32A,32B間を開く方向へ回動させ、て第1開放位置OP1へ位置させ、施蓋済みの容器本体2を下方回転円板11上の容器載置位置12から搬出する。   Thereafter, on the downstream side of the winding work area, the gripper members 32A and 32B of the first gripper 31 are rotated around the rotation shafts 34A and 34B in the direction of opening the gripper members 32A and 32B. The container body 2 that has been covered is moved from the container placement position 12 on the lower rotating disk 11 to the first opening position OP1.

空になった容器載置位置12には、下方回転円板11が回転して、再び巻締作用領域の上流側に至ったところでまた施蓋前の容器本体2を搬入し、施蓋を施すことを繰り返し行う。   The lower rotating disk 11 rotates to the empty container mounting position 12 and again reaches the upstream side of the tightening region, and the container body 2 before the lid is loaded again and the lid is applied. Repeat that.

このように、本実施形態においては、容器本体2の口頚部4にキャップ5を嵌合させる際には、第2グリッパ41でねじ部の直下を支承し、センタリングもしており、第1グリッパ31も容器本体2の外形状を変形させることなく、その立位状態をガイドしているので、口頚部4が傾くことによるキャッピングの不具合も防止することができる。   Thus, in the present embodiment, when the cap 5 is fitted to the mouth / neck portion 4 of the container body 2, the second gripper 41 supports the portion directly below the threaded portion and performs centering, and the first gripper 31. In addition, since the standing state is guided without deforming the outer shape of the container main body 2, it is possible to prevent capping problems caused by the tilting of the mouth-and-neck portion 4.

また、容器本体2の口頚部4に対するキャップ5の嵌合後、それぞれのねじ部が螺合し、所定のトルクで巻締めされる際には、第2グリッパ41はキャッパの下降動作に干渉しない第1開放位置に位置し、第1グリッパ31は容器本体2の胴部3を把持しているので、容器本体2はキャップ5の回転トルクを受け止め、良好なキャッピングを行うことができる。   Further, after the cap 5 is fitted to the neck 4 of the container body 2, the second gripper 41 does not interfere with the lowering operation of the capper when the respective screw portions are screwed and tightened with a predetermined torque. Since the first gripper 31 is positioned at the first open position and holds the body portion 3 of the container body 2, the container body 2 can receive the rotational torque of the cap 5 and perform good capping.

このように、本実施形態の施蓋装置10および施蓋方法によれば、軟質な容器であっても確実に、歩留り良く、キャッピングを施すことができる。   Thus, according to the lid | covering apparatus 10 and the lid | covering method of this embodiment, even if it is a soft container, capping can be performed reliably with a sufficient yield.

なお、本実施形態における第1グリッパ駆動装置30および第2グリッパ駆動装置40の駆動タイミング、開閉方向、移動量等は、本発明の目的を達成可能な限度において変更することができる。   In addition, the drive timing of the 1st gripper drive device 30 and the 2nd gripper drive device 40 in this embodiment, an opening / closing direction, a movement amount, etc. can be changed in the limit which can achieve the objective of this invention.

具体的には、巻締め工程において、キャップチャック20の巻締めトルクを確実に保持できるように、第1グリッパ31の各グリッパ部材32A,32Bを、回動軸34A,34Bを中心に、第1グリッパ31の各グリッパ部材32A,32B間をさらに閉じる方向へ回動させ、第1把持位置HP1における容器本体2の把持力よりも、さらに大きな把持力を以て容器本体2を把持可能なトルク把持位置THPに位置させ(図7参照)、その後、所定の巻締めトルクでキャップ5の巻締めを実行するようにしてもよい。このように第1グリッパ31を巻締め工程においてトルク把持位置THPに位置させる場合には、巻締め終了後に、一旦、第1グリッパ31のグリッパ部材32A,32Bを、回動軸34A,34Bを中心にして各グリッパ部材32A,32B間を開く方向へ回動させて第1把持位置HP1に位置させて、施蓋された容器本体2を巻締作業領域の下流側における容器の搬出位置までガイドし、容器本体2が搬出位置に至るときに、さらに第1グリッパ31のグリッパ部材32A,32Bを、回動軸34A,34Bを中心に、各グリッパ部材32A,32B間を開く方向へ回動させて第1開放位置OP1へ位置させ、施蓋済みの容器本体2を下方回転円板11上の容器載置位置12から搬出できるようにすればよい。   Specifically, in the tightening step, the gripper members 32A and 32B of the first gripper 31 are arranged around the rotation shafts 34A and 34B so that the tightening torque of the cap chuck 20 can be securely held. A torque gripping position THP that can grip the container body 2 with a gripping force that is larger than the gripping force of the container body 2 at the first gripping position HP1 by rotating the gripper members 32A and 32B of the gripper 31 further in the closing direction. (See FIG. 7), and then the cap 5 may be tightened with a predetermined tightening torque. As described above, when the first gripper 31 is positioned at the torque gripping position THP in the tightening step, the gripper members 32A and 32B of the first gripper 31 are temporarily centered on the rotation shafts 34A and 34B after the end of the tightening. Then, the gripper members 32A and 32B are rotated in the opening direction to be positioned at the first gripping position HP1, and the covered container body 2 is guided to the container unloading position on the downstream side of the winding work area. When the container body 2 reaches the carry-out position, the gripper members 32A and 32B of the first gripper 31 are further rotated in the direction of opening the gripper members 32A and 32B around the rotation shafts 34A and 34B. What is necessary is just to make it position to the 1st open position OP1, and to be able to carry out the container main body 2 with a lid | cover from the container mounting position 12 on the downward rotation disc 11. FIG.

このような巻締めを実行することにより、それぞれのねじ部が螺合し、所定のトルクで巻締めされる際には、第2グリッパ41はキャッパの下降動作に干渉しない第2開放位置OP2に位置しており、第1グリッパ31はトルク把持位置THPに位置しているので、嵌合時よりもさらにしっかりと容器本体2(このとき、螺合工程により口頚部4に対するキャップ5の螺合が適正に行われているため、把持力によりある程度の変形が起こっても巻締め可能な状態となっている)を把持しているので、容器本体2はキャッパ5の回転トルクをより確実に受け止め、保持することができるので、良好なキャッピングを行うことができる。   By performing such tightening, when the respective screw portions are screwed and tightened with a predetermined torque, the second gripper 41 is moved to the second open position OP2 that does not interfere with the lowering operation of the capper. Since the first gripper 31 is positioned at the torque gripping position THP, the container main body 2 (at this time, the screwing of the cap 5 to the mouth-and-neck portion 4 is more firmly performed than the fitting). The container body 2 receives the rotational torque of the capper 5 more reliably, because the container body 2 is gripping (even if some deformation occurs due to the gripping force). Since it can hold | maintain, favorable capping can be performed.

また、本実施形態においては、第1グリッパ駆動装置30および第2グリッパ駆動装置40は、それぞれに設けられているカムフォロアを施蓋装置10に設けられた固定側のカムのカム溝内を転動させることにより、第1グリッパ31のグリッパ部材32A,32B間、第2グリッパ41のグリッパ部材42A,42B間を開閉させる構成としたが、第1グリッパ駆動装置30および第2グリッパ駆動装置40は、各グリッパ部材32A,32B、42A,42Bを開閉させる駆動源としての前記カム及びカムフォロアに代えて、それぞれにグリッパ開閉用のモータと該モータの回転力を前記一方の回動軸34A,44Aに伝達する1乃至複数の歯車とを設けてもよい。   Further, in the present embodiment, the first gripper driving device 30 and the second gripper driving device 40 roll the cam followers provided in the cam grooves of the fixed cam provided in the cover device 10 respectively. By doing so, the gripper members 32A and 32B of the first gripper 31 and the gripper members 42A and 42B of the second gripper 41 are opened and closed. However, the first gripper driving device 30 and the second gripper driving device 40 are Instead of the cam and cam follower as a drive source for opening and closing each gripper member 32A, 32B, 42A, 42B, the gripper opening / closing motor and the rotational force of the motor are respectively transmitted to the one rotating shaft 34A, 44A. One or a plurality of gears may be provided.

この場合、前記制御部により、このグリッパ開閉用のモータの正逆方向の回転を制御して一方の回動軸34A,44Aを正逆回転させ、互いに噛合している一対の歯車によって他方の回動軸34B、44Bを同期させて前記一方の回転軸34A,44Aとは逆方向に回転させ、それぞれのグリッパ部材32A,32B、42A,42Bを所望の移動量で開閉させるようにする。   In this case, the control unit controls the rotation of the gripper opening / closing motor in the forward / reverse direction to rotate the rotation shafts 34A, 44A in the forward / reverse direction, and the other gear is rotated by a pair of gears engaged with each other. The moving shafts 34B and 44B are synchronized and rotated in the opposite direction to the one of the rotating shafts 34A and 44A, so that the respective gripper members 32A, 32B, 42A and 42B are opened and closed with a desired movement amount.

また、この場合、キャップチャック20の高さ位置を検出するセンサ等を配設し、その検出結果に基づいて第1グリッパ駆動装置30のグリッパ開閉用のモータ、第2グリッパ駆動装置40のグリッパ開閉用のモータの回転方向と回転量を制御してもよい。また、高さ位置の検出後に回転を止めるクラッチ装置を配設する等、機械的な制御を含んでもよい。勿論、キャップチャック20の各駆動系と同期させた駆動制御を行なってもよい。   In this case, a sensor or the like for detecting the height position of the cap chuck 20 is provided, and a gripper opening / closing motor of the first gripper driving device 30 and a gripper opening / closing of the second gripper driving device 40 based on the detection result. The rotational direction and amount of rotation of the motor for use may be controlled. Further, mechanical control such as disposing a clutch device that stops rotation after detection of the height position may be included. Of course, drive control synchronized with each drive system of the cap chuck 20 may be performed.

このような第1グリッパ駆動装置30および第2グリッパ駆動装置40を専用のモータの回転力を利用して開閉駆動する構成とされた施蓋装置10は、特に、容器載置位置12を固定位置とし、この容器載置位置12において容器本体2の搬入及び搬出が為されるような場合に有用である。   The lid device 10 configured to open and close the first gripper driving device 30 and the second gripper driving device 40 by using the rotational force of a dedicated motor, in particular, the container mounting position 12 at the fixed position. This is useful when the container body 2 is carried in and out at the container placement position 12.

また、前述の実施形態においては、容器載置位置12に立位状態で搬入された容器本体2を、第1グリッパ31と第2グリッパ41の開閉移動を個別に制御しつつ施蓋する場合を説明したが、本発明は、巻締作業領域を移動する容器本体2は、吊下された状態であってもよい。例えば、容器本体2を、開閉移動を個別に制御される第1グリッパ31および/または第2グリッパ41により支承し、吊下しつつ、所望の施蓋を実行するように、ことも可能である。   Moreover, in the above-mentioned embodiment, the case where the container main body 2 carried in the standing state at the container placement position 12 is covered while controlling the opening and closing movements of the first gripper 31 and the second gripper 41 individually. As described above, in the present invention, the container body 2 moving in the winding work area may be in a suspended state. For example, the container main body 2 may be supported by the first gripper 31 and / or the second gripper 41 whose opening / closing movement is individually controlled and suspended, and a desired lid is executed. .

その他、本発明の容器保持装置および容器搬送方法は、前述した実施形態に限定されるものではなく、発明の特徴を損なわない限度においてさらに種々変更することができる。   In addition, the container holding device and the container transport method of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the characteristics of the invention.

1 スクイズボトル
2 容器本体
3 胴部
4 口頚部
5 キャップ
10 施蓋装置
11 下方回転円板
12 容器載置位置
20 キャップチャック
21 キャップ保持部
30 第1グリッパ駆動装置
31 第1グリッパ
32A,32B グリッパ部材
33A,33B 係合凹部
34A,34B 回動軸
40 第2グリッパ駆動装置
41 第2グリッパ
42A,42B グリッパ部材
43A,43B 係合凹部
44A,44B 回動軸
RS 回転鉛直軸
OP1 第1開放位置
HP1 第1把持位置
OP2 第2開放位置
HP2 第2把持位置
THP トルク把持位置
1 Squeeze bottle 2 Container body 3 Body
4 Neck part 5 Cap 10 Covering device 11 Lower rotating disk 12 Container placement position 20 Cap chuck 21 Cap holding part 30 First gripper driving device 31 First grippers 32A, 32B Gripper members 33A, 33B Engaging recesses 34A, 34B Rotating shaft 40 Second gripper driving device 41 Second grippers 42A, 42B Gripper members 43A, 43B Engaging recesses 44A, 44B Rotating shaft RS Rotating vertical axis OP1 First opening position HP1 First gripping position OP2 Second opening position HP2 Second gripping position THP Torque gripping position

Claims (3)

スクイズ性が付与された有底の胴部と、前記胴部に連接された前記胴部よりも剛性の高い口頚部とからなる容器本体の前記口頚部に対し、キャップを保持した状態で回転下降するキャップ保持部を備えたキャップチャックを用い、前記口頚部に形成されたねじ部の上先端部と前記キャップに形成されたねじ部の下先端部とを噛合させて前記口頚部に前記キャップを嵌合させる嵌合工程、前記口頚部のねじ部と前記キャップのねじ部とを螺合させる螺合工程、前記口頚部のねじ部と前記キャップのねじ部との間に所定の巻締めトルクを作用させて巻締めする巻締め工程を経て前記キャップを施す施蓋装置であって、
一対のグリッパ部材を少なくとも、それぞれの先端部を前記容器本体を搬入・搬出可能に離間させた第1開放位置と、前記容器本体の胴部を把持して前記キャップチャックの巻締めトルクを保持する第1把持位置とに位置させるように開閉自在に配設された第1グリッパと、
一対のグリッパ部材を少なくとも、それぞれの先端部を前記口頚部を搬入・搬出可能に離間させた第2開放位置と、前記口頚部におけるねじ部の下方を把持して位置決めする第2把持位置とに位置させるように開閉自在に配設された第2グリッパと、
を備えており、
前記第1グリッパおよび第2グリッパは、それぞれの開閉移動のタイミングおよび開閉量を個別に調整可能とされており、
前記第2グリッパは、前記嵌合工程においては前記第2把持位置に位置し、前記嵌合工程後に前記第2開放位置へ移動して螺合工程および巻締め工程において駆動するキャップチャックおよびキャップチャックに保持されたキャップとの干渉を回避するように構成されている
ことを特徴とする施蓋装置。
Rotating and descending with the cap held against the mouth-neck part of the container body consisting of a squeezed bottomed body part and a mouth-and-neck part rigidly connected to the body part. A cap chuck having a cap holding portion that engages an upper tip portion of a screw portion formed on the neck portion and a lower tip portion of a screw portion formed on the cap, and the cap portion is placed on the mouth neck portion. A fitting step for fitting, a screwing step for screwing the screw portion of the mouth neck portion and the screw portion of the cap, and a predetermined tightening torque between the screw portion of the mouth neck portion and the screw portion of the cap. A covering device that applies the cap through a tightening step of acting and tightening,
At least a pair of gripper members are held at a first open position where their respective distal ends are separated so that the container main body can be loaded and unloaded, and the barrel of the container main body is held to hold the tightening torque of the cap chuck. A first gripper disposed to be openable and closable so as to be positioned at a first gripping position;
The pair of gripper members are at least at a second open position in which the respective distal end portions are separated so that the mouth and neck portions can be loaded and unloaded, and a second gripping position in which the lower portions of the screw portions in the mouth and neck portions are gripped and positioned. A second gripper disposed to be openable and closable so as to be positioned;
With
The first gripper and the second gripper can individually adjust the timing of opening and closing and the amount of opening and closing,
The second gripper is located at the second gripping position in the fitting step, moves to the second release position after the fitting step, and is driven in the screwing step and the tightening step. A lid device characterized in that the lid device is configured to avoid interference with the cap held by the cap.
前記第1グリッパは、さらに、第1把持位置における容器本体の把持力よりもさらに大きな把持力を以て把持可能なトルク把持位置に位置するように構成されていることを特徴とする請求項1に記載の施蓋装置。   The said 1st gripper is further comprised so that it may be located in the torque holding position which can be hold | gripped with a holding force larger than the holding force of the container main body in a 1st holding position. Covering device. スクイズ性が付与された有底の胴部と、前記胴部に連接され、前記胴部よりも剛性の高い口頚部とからなる容器本体の前記口頚部に対し、キャップを保持した状態で回転下降するキャップ保持部を備えたキャップチャックを用い、前記口頚部に形成されたねじ部の上先端部と前記キャップに形成されたねじ部の下先端部とを噛合させて前記口頚部に前記キャップを嵌合させる嵌合工程、前記口頚部のねじ部と前記キャップのねじ部とを螺合させる螺合工程、前記口頚部のねじ部と前記キャップのねじ部との間に所定のトルクを作用させて巻締めする巻締め工程を経て前記キャップを施す施蓋方法であって、
前記各工程において、前記胴部を把持可能とされた一対のグリッパを備える第1グリッパにより容器本体を支承するとともに、
前記嵌合工程においては、前記容器本体の口頚部におけるねじ部の下方を把持可能とされた一対のグリッパ部材を備える第2グリッパにより、前記ねじ部の下方を把持して前記口頚部を位置決めし、
前記嵌合工程後には、第2グリッパの一対のグリッパ部材の相互の先端を離間させ、続く螺合工程および巻締め工程において駆動する前記キャップチャックおよび前記キャップチャックに保持されたキャップとの干渉を回避させることを特徴とする施蓋方法。
Rotating and descending with the cap held against the mouth-neck part of the container body consisting of a bottomed body part with squeeze property and the neck part connected to the body part and having rigidity higher than the body part A cap chuck having a cap holding portion that engages an upper tip portion of a screw portion formed on the neck portion and a lower tip portion of a screw portion formed on the cap, and the cap portion is placed on the mouth neck portion. A fitting step for fitting, a screwing step for screwing the screw portion of the mouth neck portion and the screw portion of the cap, and applying a predetermined torque between the screw portion of the mouth neck portion and the screw portion of the cap. A method of applying the cap through a tightening process of tightening,
In each of the above steps, the container body is supported by a first gripper including a pair of grippers capable of gripping the body portion,
In the fitting step, the lower neck portion is positioned by gripping the lower portion of the screw portion by a second gripper including a pair of gripper members that are capable of gripping the lower portion of the screw portion in the neck portion of the container body. ,
After the fitting step, the pair of gripper members of the second gripper are separated from each other, and interference with the cap chuck and the cap held by the cap chuck that are driven in the subsequent screwing step and winding step is performed. A method of covering, characterized in that it is avoided.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115108514A (en) * 2022-07-11 2022-09-27 陈培根 A spiral cover machine for food processing
CN115108514B (en) * 2022-07-11 2023-12-19 榴莲先生(广东)实业有限公司 A spiral cover machine for food processing

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