JP2015131652A - Capping device and capping method - Google Patents

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

  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.

  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.

  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).

JP 2011-235937 A

  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.

  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.

  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.

  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.

  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

  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.

  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.

  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.

  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.

  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.

Explanatory drawing which shows the state before the cap fitting in the principal part of the lid | cover apparatus of this invention. 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 The top view which shows the positional relationship of the 1st gripper and container main body in a 1st open position. The top view which shows the positional relationship of the 1st gripper and container main body in a 1st holding position. The top view which shows the positional relationship of the 2nd gripper and cap holding | maintenance part in a 2nd open position. The top view which shows the positional relationship of the 2nd gripper and cap holding | maintenance part in a 2nd holding position. The top view which shows the positional relationship of a 1st gripper and a container main body in a torque holding position.

  Hereinafter, a covering device and a covering method according to the present invention will be described with reference to FIGS.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  Below, operation | movement (the lid | cover method of this invention) of the lid | cover apparatus 10 of this embodiment is demonstrated concretely.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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. .

  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).

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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. .

  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 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)

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.   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. 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.