JP2009143602A - Method and apparatus for filling item to be packaged and for opening two chambered bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automate the interval and position adjustments of two sets of opening spatulas conventionally done visually and manually in replacing a two-chambered bag which are provided with two chambers arranged laterally with a partition in-between. <P>SOLUTION: In holding both side edges with transfer clamps 12, the width value of two chambers 71, 72 with a partition 73 in-between is input in advance in a controller. The position of the partition 73 is calculated by the calculation of the controller and an intermediate clamp 87 is moved from an origin point. Simultaneously, after the tubular image of the chambers 71, 72 is calculated and the moving amount M3 of a pair of clamps 12 is set, the clamp 87 is moved M4 synchronously as the chambers 71, 72 are tubularly formed by the approach of the clamps 12. Meanwhile, the center positions 85, 86 of the chambers being tubularly formed are calculated for servo-controlling each opening spatula to be moved to the center positions. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention transports a two-chamber bag provided with two storage chambers side by side across a partition, along a circular track while being supported by a clamp, and in the center of each of the two storage chambers during transport. The present invention relates to an opening control method and apparatus for inserting an opening spatula.

  Patent Document 1 below discloses a bag opening device in a rotary bag filling and packaging machine. The apparatus projects a bag from the center of the circular orbit for intermittently transferring the bag toward the upper region of the circular track and reciprocates the bag on the circular track in synchronization with the intermittent transfer of the bag. Then, while the wrapping bag moves by one pitch, a pair of opening spatulas provided at the tip of the bag is inserted into the wrapping bag to open the wrapping bag. That is, each time the bag is stopped in a predetermined section, the bag mouth is first opened, and the nozzle is inserted into the opening to fill the packaged items. In the configuration of Patent Document 1, a pair of opening spatulas opens a moving wrapping bag, and the wrapping bag stops at the next section, and at the same time, a nozzle is inserted into the wrapping bag. In this way, it is very efficient to fill the package.

  On the other hand, Patent Document 2 below suspends a wrapping bag having two storage chambers side by side with a pair of clamps arranged on the periphery of the turntable, and turns the wrapping bag into a circular orbit by rotating the turntable. In the stop section of the wrapping bag, two chambers of the wrapping bag are opened with a pair of vacuum suckers, and air pressure is ejected from a nozzle inserted into each of the two opened chambers. As a pre-process for filling the package, a packaging device for expanding the two chambers in a cylindrical shape is disclosed. The nozzle is used to inflate the two chambers in a cylindrical shape by air pressure as a pre-process for filling the package. Even if these nozzles are assumed to be used for filling the package, Is opened with a vacuum sucker, and then the nozzle is inserted to fill the packaged object, which is inefficient. However, when the bag opening device shown in Patent Document 1 is incorporated in the device of Patent Document 2, more efficient filling is possible.

  However, even if the size of a general sachet changes, the center of the sachet when the size of the bag is opened is unchanged. Since the centers of the two storage chambers change, it is necessary to adjust the position of the opening spatula toward the centers of the two storage chambers each time.

JP 2001-158405 A Japanese Patent Laid-Open No. 60-158027

  The present invention automatically adjusts the position of the opening spatula and / or the nozzle according to the size of the two-chamber bag in accordance with the exchange of the two-chamber bag having two storage chambers side by side in the rotary packaging apparatus. It is intended to adjust to.

In order to achieve the above object, the present invention achieves the above object by providing a primary opening section, a primary filling section, and a circular orbit which is an intermittent conveying orbit of multiple pairs of clamps in one pair. , While installing a secondary opening section and a secondary filling section, projecting a bifurcated ridge composed of a first ridge and a second ridge laterally from the upper end of the rod shaft at the center of the circular orbit, Two chambers in which the clamp suspends in the primary opening section a pair of opening spatulas provided in the first and second rods by forward / reverse rotation and vertical movement of the rod shaft in accordance with one pitch movement of the clamp. After inserting into the first storage chamber on the front side of the bag and into the second storage chamber on the back side of the two-chamber bag where the clamp hangs in the secondary opening section, the two-chamber bag is filled with the primary filling section and the secondary filling section. While reaching the section, a control method of opening the two containers chambers These openings spatula,
The rotation angle of the main control motor is adjusted by calculation by the controller when the lateral width of the two-chamber bag is input to the controller, and the interval between the clamps of each set is adjusted by the power of the main control motor. A step of adjusting the width to match the width of the chamber bag;
Simultaneously calculating the center position of each of the two storage chambers and the position of the partition between the two storage chambers when the two storage chambers in the two-chamber bag are each formed into a cylindrical shape by the calculation by the controller. When,
Based on the above calculation, the step of clamping the partition in the primary opening section with the first intermediate clamp and the partition in the secondary opening section with the second intermediate clamp, and the first and second rods, respectively. And moving the pair of open spatulas installed on the guide protruding in the conveying direction of the two-chamber bag from the side surface of the two chambers along the respective guides by a spatula operating motor toward the center positions of the two storage chambers. Constitute.

  The rotation angle of the main control motor is adjusted by the calculation by the controller when the width of the two-chamber bag is input to the controller, so that the interval between the clamps of each set matches the width of the two-chamber bag. At the same time, calculating the center position of each of the two storage chambers when the two storage chambers in the two-chamber bag are respectively cylindrical, and the position of the partition between the two storage chambers. The pair of opening spatulas installed in the guide protruding in the conveying direction of the two-chamber bag from the side surfaces of the first and second rods while holding the partition between the storage chambers by the first and second intermediate clamps Since the movement is made along the guides toward the center positions of the two storage chambers, the position of the opening spatula in each of the first and second rods can be changed when changing to a two-chamber bag having a different size. The troublesome manual adjustment is eliminated.

  FIG. 2 is a top perspective view of a general rotary type bag filling and packaging means, and a plurality of clamp arms 11 each having two as a set are pivotally supported on the periphery of the turntable 10 at equal intervals. In this structure, the clamp 12 provided at the front end of the head is rotated 14 integrally with the turntable 10 along a circular path. This rotating circular orbit is provided with the same number of sections as the number of sets of the clamps 12, and the pair of clamps 12 move intermittently while temporarily stopping at each section.

  When the uppermost packaging bag 13 loaded in the bag feeding section indicated by the reference numeral 1 is supplied to the clamp 12, the primary opening section of the same reference numeral 2 closes the bag mouth of the packaging bag 13 by the approach of the pair of clamps 12. The package is filled in the package 13 opened in the primary filling section of the circled symbol 3. Although details will be described later, a circled symbol 4 is a secondary opening section, and a circled symbol 5 is a secondary filling section.

  FIG. 3 is a partially oblique view of FIG. 2, in which both clamp arms 11 are supported on the turntable 10 by pivot shafts 15, and both crank arms 11 are pivot shafts 15 by engagement of a pair of sector gears 16. Is linked to the fulcrum. The pulling force of the spring 17 provided between the two crank arms 11 presses the pulley 21 at the end of the bell crank 20 connected via the lever 18 and the connecting rod 19 to the upper surface of the annular cam 22. For this reason, the space | interval of a pair of clamp 12 changes with the up-and-down movement of the annular cam 22. FIG.

  As shown in FIG. 4, the turntable 10 is fixed to the upper end of the main shaft 25, and the main shaft 25 rotates intermittently with the intermittent rotating machine 24 below. An annular base body 28 is disposed around a bearing 27 around the main shaft, and a support ring 36 is rotatably disposed around the annular base body 28 via a ball bearing 35 as shown in FIG. On the other hand, the annular cam 22 is formed by a high place cam 38 fixed with screws 41 in the range of about 180 degree angle around the support ring 36 and the remaining low place cam 39 arranged in the range of about 180 degree angle.

  FIG. 6 is a developed view thereof. Since the inclined groove 30 formed in the annular base body 28 is engaged with the pin 29 fixed to the bearing 27, the annular base body 28 around the bearing 27 is rotated forward and backward (lateral movement). Then, the annular base body 28 moves up and down diagonally due to the displacement of the inclined groove 30 along the pin 29. In addition, a slit 43 formed in an inclined shape in the low place cam 39 engages with a pin 44 fixed to the support ring 36. Further, the support ring 36 and the low cam 39 are connected by an extending device, that is, a tangle buckle 47, which is composed of two screw rods 45 and nut members 46 having different lead directions. Therefore, when the length of the stretching device 47 is adjusted by operating the nut member 46, the low place cam 39 is displaced up and down along the inclination of the slit 43, and the height difference of the low place cam 39 with respect to the high place cam 38. Can be adjusted.

  When a predetermined numerical value is input from the input device 65 in FIG. 4 to the controller 66, the main control motor 32 forwards or reverses the link 34 fixed to the shaft 33 on the horizontal plane in accordance with the input numerical value. Via the lever 31, the annular base 28 can be displaced obliquely up and down around the bearing 27 as already described in FIG. In this case, the annular base body 28 and the support ring 36 connected via the ball bearing 35 in FIG. 5 are integrally displaced up and down, and the up and down displacement of the support ring 36 in FIG. Therefore, the bell crank 20 that moves on the annular cam 22 integrally with the upper turntable 10 can be rotated to displace the distance between the two clamps 12 in FIG. In other words, this corresponds to the adjustment for matching the width value of the packaging bag 13 to be used with the interval between the clamps 12.

  In FIG. 7, when the pulley 21 descends from the high place cam 38 toward the low place cam 39 due to the movement of the pulley 21 in the arrow direction 120 and the movement of the annular cam 22 in the opposite direction, the bell crank 20 By rotating, the distance between the pair of clamps 12 in FIG. 3 is reduced. Since the opening area of the sachet sandwiched between the pair of clamps 12 increases in proportion to the increase in the width value, the lower cam 39 with respect to the higher cam 38 is lowered with the stretching device 47 in FIG. It adjusts so that it may be displaced to a location.

  In FIG. 4, the clamp arm 11 that suspends the bag 13 is intermittently moved at an angle of 45 degrees on a plane by the intermittent rotating machine 24. That is, while the clamp arm 11 is moved by one pitch, the cam 80 interlocked with the power of the intermittent rotating machine 24 makes one rotation, and the lever 81 fixed to the shaft causes the annular cam 22 to be integrated with the support ring 36 by a certain angle. Reverse the direction. This is the lever 81 in FIG. 5, and the movement of the support ring 36 forward and backward by a set angle corresponds to the forward / backward movement (imaginary line) of the high and low cams 38 and 39 in FIG. With the retraction of the predetermined value 82 of the annular cam 40, the bell crank 20 rotates clockwise by the difference between the two cams 38 and 39 to narrow the interval between the clamps 12.

  The rod shaft 50 vertically passing through the inner hollow portion of the main shaft 25 shown in FIG. 8 projects a flange 53 horizontally and horizontally from its upper end, and an open spatula 60 is provided in each of two parallel guides 69 provided at the tip of the flange. It is installed. By operating the lever 55 fixed to the lower end of the rod shaft 50 by a cam (not shown) interlocked with the intermittent rotating machine 24, the rod 53 rotates forward and backward at a 45 degree angle on the plane. The rod shaft 50 is also moved up and down by the movement of a seesaw 57 that operates with an eccentric cam 56.

  In addition, the crank 59 provided at the upper end of the shaft 58 penetrating the rod shaft 50 in the vertical direction and the opening spatula 60 provided in the flange 53 are connected via the interlocking mechanism 61, so that the shaft 58 is fixed to the lower end of the shaft 58. The pair of open spatula 60 is opened and closed by an operating force for rotating the lever 62. Specifically, as shown in FIG. 10, the pair of open spats 60 are both supported by the pin 63 with respect to the flange 53, and the interlocking link 64 fixed to the both pins 63 is engaged by the projection 67 and the slit 68 at the intersection. By operating the interlocking link 64, the pair of open spatula 60 opens and closes.

  The two-chamber bag used by the present invention is shown in FIG. That is, A in FIG. 1 is a front view of a part of the two-chamber bag 13 provided side by side with the inner partition 73 and two storage chambers 71, 72, and B is a plan view thereof. In order to adapt to the use of such a two-chamber bag, a bifurcated heel 53 shown in FIG. 9 is used. This is composed of a first rod 51 and a second rod 52, and two parallel guides 69 protruding from the side surfaces of both rods are provided with opening spatulas 60 facing each other. Perform as follows.

  That is, as shown in FIG. 11, the two parallel guides 69 form a spline key 75 around the guide, and an iron metal body 79 that fixes two sets of open spatula 60 is attached to the spline key 75. Support slidable.

  The parallel guide 69 whose cross section is shown in FIG. 12 is cylindrical, and a magnetic body 77 is engaged with a screw rod 76 provided inside each of the pair of parallel guides. For this reason, when the screw rod 76 in both parallel guides 69 is rotated by the spatula operating motor 78 in FIG. 11 and the magnetic body 77 engaged with the screw rod 76 in FIG. The body 79 slides along the spline key 75.

  In FIG. 4, the input from the input device 65 to the controller 66 is the entire width of the two-chamber bag 13 in A of FIG. In this case, at least one of the width values of the storage chamber 71 on one side is included. Alternatively, instead of the overall width of the two-chamber bag 13, the widths of the two storage chambers may be input. By inputting these widths with numerical values or specific codes instead of numerical values, the controller calculates from the input information so that the lateral width of the two-chamber bag 13 in FIG. Then, a pulse signal is sent from the controller 66 of FIG. 4 to the main control motor 33 to displace the annular cam 22 in the vertical direction integrally with the annular base body 28. As described above, the crank interval is adjusted by the displacement of the annular cam 22 in the vertical direction.

  Further, as shown in FIG. 1B, the computing unit in the controller visualizes the shape of the case where both the storage chambers 71 and 72 are formed into a cylinder by calculating, and at the same time, the approach amount M3 imposed on the both-side clamp 12. Is calculated. Since the film constituting the two-chamber bag 13 has an elastic restoring force, the accommodation chamber 71 does not have a cylindrical shape as shown in the figure, and has a sharp eye like a pupil that is relatively open. However, even if there is a large or small difference in the cylindrical shape when each storage chamber is opened, the pupil shape itself is unified, so the calculation by the controller based on the pupil shape The positions of the centers 85 and 86 of both storage chambers are calculated.

  If the width values of the two storage chambers 71 and 72 are the same as in the first intermediate clamp 87 of FIG. 14, the intermediate clamps 87 and 98 have the intermediate point of the two-chamber bag 13 as the origin position. However, when the widths of the two storage chambers 71 and 72 are different as shown in FIG. 1, the intermediate clamps 87 and 98 are moved from the origin to the position of the displaced partition 73 by the calculation by the calculator, and thereafter It moves by M4 in synchronization with the cylindrical deformation of the two storage chambers 71, 72.

  FIG. 15 shows a mechanism for moving the intermediate clamp 87 composed of a pair of clamping bodies. The movable frame 90 is slidably supported by the guide rod 89 of the machine base 88, and the pair of intermediate clamps 87 are supported by the pair of arms 92 supported by the upper and lower grooves 91 in the movable frame 90. On the other hand, each of the pair of arms 92 engages with rack teeth 93 on the inner surface and a pinion 94 installed on the movable frame 90. By rotating the pinion 94 forward and backward with the power of the motor, the intermediate clamp 87 opens and closes to hold the bag partition. The clamp operating motor 95 rotates the screw rod 96 and displaces the movable frame 90 along the guide rod 89. Since the controller 66 in FIG. 4 controls the rotation angle of the clamp operating motor 95, the movement of the intermediate clamp 87 corresponding to M4 in FIG. 1 is controlled. The intermediate clamp 87 functions as an intermediate support when the two storage chambers 71 and 72 are changed into a cylindrical shape later.

  On the other hand, the centers 85 and 86 of the two storage chambers 71 and 72 that are formed into the cylindrical shape in FIG. 1B move from the center of the flat state of the bag shown in FIG. 1A. 11, the pair of opening spatulas 60 facing each other is moved to a position that coincides with the center 85 of the storage chamber 71.

  As shown in FIG. 13, two-chamber bag stop sections are set around the turntable 10 at eight 45-degree angles. Therefore, the rotation of the groove cam 85 in FIG. 9 causes the rod 86 to slide along the fixed sleeve 84, causing the first rod 51 to swing M1 between the sections with the circled signs 2 and 3 in FIG. At the same time, the second rod 52 is swung between the sections 4 and 5 with circles M2. In this case, the bifurcated rod 53 is moved up and down by the swinging of the seesaw rod 57 in FIG. 8, so that the opening spatula 60 is inserted into the wrapping bag 13 when moving forward and then pulled out from the wrapping bag 13 when moving backward.

FIG. 14 illustrates the front of the two-chamber bag 13 in each section of FIG. 13, and the following description is based on these drawings.
When the two-chamber bag 13 supported by the clamp 12 reaches the section 2 with a circle and stops, the tension of the wrapping bag is relaxed by the rotation of the bell crank 20 due to the cam displacement 82 in FIG. A pair of suction cups 97 adsorbed on both surfaces of 71 open the bag mouth, and simultaneously insert the opening spatula 60 into the bag mouth. At this time, the suction cup 97 cuts the suction force.

  As the process progresses, while the two-chamber bag 13 moves from the section 2 with the circled sign to the third section, the pair of open spatula 60 opens the bag mouth widely, and the nozzle that descends upon reaching the third section. 101 fills the accommodation chamber 71 on the front side with the article to be packaged.

In a section indicated by a circled symbol 4 in FIG. 6, a protruding cam member 99 is attached to a part of the low place cam 39. For this reason, when the traveling bell crank 20 rides on the cam member 99 and stops, the clamp 12 widens the gap in the circled symbol 4 in FIG. 14 to tension the bag mouth, and the second intermediate clamp 98 existing at that position. Therefore, the inner partition 73 is sandwiched. Immediately after this, the cam member 99 in FIG. 6 is displaced integrally with the annular cam 22 (the action of the displacement 82 in FIG. 7) to loosen the tension of the bag mouth, and the second suction cup 100 existing at that position is moved to the rear side. While the accommodation chamber 72 is expanded, the second open spatula 60 is inserted into the bag mouth.
Then, while the two-chamber bag 13 moves from the rounded section 4 to the fifth section, the pair of open spats 60 opens the bag mouth widely, and the second nozzle 102 descends upon reaching the fifth section. Fills the packaging material 72 in the front side, and thus the filling of the packaging material into the two accommodation chambers is completed.

  In FIG. 15, the opening spatula 60 and the clamp arm 11 move together with the two-chamber bag 13 in the forward direction, so that the intermediate clamp arm 92 does not interfere with the movement of the opening spatula 60. However, in the section of circled symbol 4 in FIG. 13, the arm of the second intermediate clamp 98 hinders the advance of the opening spatula inserted into the rear receiving chamber 72. Therefore, the second intermediate clamp 98 that performs the clamping action as indicated by the phantom line in FIG. 16 is retracted below the clamp arm 11 as indicated by the solid line 105. In FIG. 13, the mechanism for moving and adjusting the second intermediate clamp 98 to a position coincident with the partition of the two-chamber bag can be performed by the same structure as the position adjustment of the first intermediate clamp 87 shown in FIG. 15. it can.

  The suction cups 97 and 100 arranged in circled reference numerals 2 and 4 in FIG. 13 pivotally support a pair of arms 106 to which the suction cup 97 is fixed as shown in FIG. By applying the power of the fluid cylinder 108 to the frame 106, the suction cup is opened and closed by the power transmission by the pair of interlocking gears 109. When the width of the two-chamber bag 13 is changed, it is possible to move the frame 107 and adjust the position of the suction cup 97 to coincide with the position of the partition of the two-chamber bag. However, as can be seen from FIG. 3, if the opening / closing movement amount of the pair of clamps 12 corresponding to the bag width is excessively large, the inclination of the clamp becomes too large. However, it is difficult to use only a wrapping bag of about 15 cm in the minimum. Since the suction cup 97 functions only to form a gap in the bag mouth in order to insert the spatula, the suction cups 97 and 100 are intentionally moved and adjusted in the storage chamber where the width value does not change extremely. Even if you don't, you will be able to see the effect.

  FIG. 17 shows different embodiments of the parallel guide for controlling the movement of the opening spatula already described. The cylinder 110 is rotatably supported by the bifurcated rod 51, and the link 64 performs the rotation operation. A hollow rod 111 is supported on the cylinder 110, and a tension spring 44 is installed therein. Further, the open spatula 60 is fixed to the outside of the hollow rod 111. A servo valve 113 installed in the hydraulic pressure circuit 112 is operated by a calculation signal from the controller, and a fluid whose flow rate is adjusted by the servo valve 113 is press-fitted into or discharged from the hollow rod 111. Can be controlled. Such constitutes a fluid spatula operating motor.

  FIG. 18 shows a mechanism for moving and adjusting the first nozzle 101 or the second nozzle 102 toward the centers of the front and rear storage chambers 71 and 72 in the two-chamber bag 13. The nozzles are supported by horizontal guides 116 installed on the front and rear machine bases 115, and the nozzle operating motor 117 is operated by a command signal from the controller. The second nozzle 102 is adjusted and moved toward the control position. In addition, although a nozzle is generally used for liquid filling and a cylindrical hopper or a chute is used for filling a solid substance, all of these are defined as nozzles in the present application.

  The fluid cylinder 115 fixed to the support ring 36 replaces the cam member 99 of the section in the circled symbol 4 in FIG. 6 to displace the plate cam 116 up and down to open and close the clamp. Unlike the type in which the clamp is opened and closed by the longitudinal movement of the annular cam 22, the clamp is performed by the vertical movement of the plate cam 116.

Two-chamber bag illustration Rotary bagging machine perspective view Perspective view from diagonally below, part of the previous figure Cross section of bagging equipment Top view of annular cam Deployment front view of annular cam Partial illustration of the previous figure Side view of the mechanism that operates the fork Top view of the fork Plan view of the mechanism for operating the spatula Configuration diagram of one side of parallel guide Configuration diagram of one side of parallel guide Rotary bagging machine plan view Movement explanatory diagram of two-chamber bag Mechanism diagram for moving the first intermediate clamp Mechanism diagram for moving the second intermediate clamp Configuration diagram of one side of parallel guide Mechanism diagram for moving the nozzle

Explanation of symbols

2 ... Primary opening section 3 ... Primary filling section 4 ... Secondary opening section 5 ... Secondary filling section 10 ... Turntable 11 ... Clamp arm 12 ... Clamp 13 ... 2 compartment bag 20 ... Bell Crank 22 ... Annular cam 32 ... Main control motor 38 ... High place cam 39 ... Low place cam 50 ... Rod shaft 51 ... 1st 52nd ... 2nd 53rd ... Bifurcated 60 ... Opening Spatula 66 ... Controller 65 ... Input device 69 ... Guide 71 ... First containment chamber 72 ... Second containment chamber 73 ... Partition 78 ... Spatula motors 85, 86 ... Center 87 ... 1st intermediate clamp 95 ... Clamp operating motor 98 ... 2nd intermediate clamp 101 ... 1st nozzle 102 ... 2nd nozzle 117 ... Nozzle operating motor

Claims (6)

While installing a primary opening section, a primary filling section, a secondary opening section, and a secondary filling section on a circular orbit which is an intermittent conveyance orbit of a large number of clamps, each of which is a pair, a center of the circular orbit A bifurcated rod consisting of a first rod and a second rod is protruded laterally from the upper end of the rod shaft, and by forward / reverse rotation and vertical movement of the rod shaft in accordance with one pitch movement of the clamp in the circular orbit, A pair of opening spatulas provided in the first and second rods are suspended in the first storage chamber on the front side of the two-chamber bag in which the clamp hangs in the primary opening section, and in the secondary opening section. After inserting into the second storage chambers behind the chamber bags, both the storage chambers are opened with these spatula while the two chamber bags reach the primary filling section and the secondary filling section. A control method,
The rotation angle of the main control motor is adjusted by calculation by the controller when the lateral width of the two-chamber bag is input to the controller, and the interval between the clamps of each set is adjusted by the power of the main control motor. A step of adjusting the width to match the width of the chamber bag;
Simultaneously calculating the center position of each of the two storage chambers and the position of the partition between the two storage chambers when the two storage chambers in the two-chamber bag are each formed into a cylindrical shape by the calculation by the controller. When,
Based on the above calculation, the step of clamping the partition in the primary opening section with the first intermediate clamp and the partition in the secondary opening section with the second intermediate clamp, and the first and second rods, respectively. A step of moving the pair of open spatulas installed in the guide protruding in the conveyance direction of the two-chamber bag from the side surface of the two chambers along the respective guides by a spatula operating motor toward the center positions of the two storage chambers. Control method that becomes. The control method according to claim 1, further comprising a step of moving the first nozzle at the calculated center position of the front storage chamber and the second nozzle at the center position of the rear storage chamber by a nozzle operating motor. 2. The control according to claim 1, further comprising the step of moving the first intermediate clamp to the calculated partition position of the primary opening section and the second intermediate clamp to the partition position of the secondary opening section by a clamp operating motor, respectively. Method. A large number of clamp arms, each consisting of two clamps, are pivotally supported on the periphery of the turntable, and clamps are provided on each of the two clamp arms. While installing an opening section, a primary filling section, a secondary opening section, and a secondary filling section, an annular cam is arranged around the central axis of the turntable, and two storage chambers are separated by a partition. A mechanism for opening and closing the two-chamber bag by changing an interval between the clamps for suspending the two-chamber bag formed side by side by a height difference of the annular cam;
A bifurcated rod made up of a first rod and a second rod protrudes laterally from the upper end of the center rod shaft of the turntable, and an opening spatula is disposed on each of the two guides protruding from the tip side surfaces of the both rods. A mechanism for displacing the open spatula along the guide by a spatula operating motor provided on the scissors;
During one pitch movement of each clamp by the turntable, the rod shaft is moved forward and backward and moved up and down to open the spatula of each of the first and second rods in the first storage chamber of the front two-chamber bag. And a packaging means comprising a mechanism for inserting each into the second storage chamber of the rear two-chamber bag,
When the lateral width of the two-chamber bag is input to the controller, the rotation angle of the main control motor is adjusted by calculation by the controller, and the interval between the clamps of each set is adjusted by the power of the main control motor. Means for adjusting to match the width of the bag;
Further, by the calculation, means for calculating the center position of each of the two storage chambers when the two storage chambers in the two-chamber bag are respectively cylindrical, and the position of the partition between the two storage chambers;
Further, based on the above calculation, the partition in the primary opening section is clamped by the first intermediate clamp, and the partition in the secondary opening section is clamped by the second intermediate clamp. A control device comprising: means for moving each of the opening spatulas provided in the guides of the first and second rods toward the center positions of the two storage chambers along the guides. The control device according to claim 4, further comprising a step of moving the first nozzle at the calculated center position of the front storage chamber and the second nozzle at the center position of the rear storage chamber by a nozzle operating motor. 5. The control according to claim 4, further comprising the step of moving the first intermediate clamp to the calculated partition position of the primary opening section and the second intermediate clamp to the partition position of the secondary opening section by a clamp operating motor. apparatus.