JP2014037252A - Delivery device of pre-filled bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a two rotor-type vertical filling sealing apparatus configured to make both surfaces oriented to outer circumference sides of bags pinched by grippers of a filling machine and a vacuum sealing device become the front sides, thereby avoiding enlargement of a delivery device and improving the layout flexibility of the filling machine and the vacuum sealing device, when the filling machine is greatly spaced apart from the vacuum sealing device.SOLUTION: A delivery device 3 comprises a first delivery device 42, a second delivery device 43, and an intermediate transfer device 44 disposed in between. A first gripping member 47 of the first delivery device 42 receives a pre-filled bag 6 from grippers 4 and 4 of a filling machine 1, and changes the direction of the bag by 90° to deliver it to the intermediate transfer device 44. A second gripping member 54 of the second delivery device 43 receives the pre-filled bag 6 from the intermediate transfer device 44, and changes the direction of the bag by 90° in the same direction as the first gripping member to deliver it to a gripper 35 of a vacuum sealing machine 2.

Description

  The present invention relates to a filled bag delivery device applied to a two-rotor vertical filling seal device.

The two-rotor vertical filling and sealing device includes a rotary filling machine, a rotary sealing machine, and a delivery device disposed between the two machines.
In Patent Document 1, both side edges of a bag are sandwiched and suspended by a pair of left and right grippers, intermittently transferred along a horizontal circular path, and a filling operation is performed on the bag in the course of the transfer. The rotary filling machine to be used, and the filled bag are suspended by grippers, and are transferred intermittently or continuously along a horizontal circular path, and the filled bag is subjected to vacuum treatment in the course of the transfer. A rotary-type sealing machine (rotary-type vacuum sealing machine) that performs the sealing operation of the bag mouth, and a delivery device that receives a filled bag from the gripper stopped by the rotary-type filling machine and passes it to the gripper of the rotary-type sealing machine. A two-rotor vertical filling and sealing device is described. Patent Documents 2 to 4 also describe the same type of two-rotor vertical filling seal device.

  Each of the filled bag delivery devices described in Patent Documents 1 to 4 includes a gripping member that grips or opens the upper portion of the bag (for example, gripper 19 in the case of Cited Document 1). The upper part of the bag sandwiched by the gripper is sandwiched by the sandwiching member and transferred toward the gripper of the rotary sealer. In the delivery devices described in Patent Documents 1 to 3, the holding member reciprocates along a predetermined movement path. Among them, in the delivery apparatus described in Patent Documents 1 and 2, the movement path is a linear path substantially parallel to the thickness direction of the sandwiched bag. In the delivery apparatus described in Patent Document 3, the movement path is the bag path. It is a composite path composed of an arcuate path substantially along the thickness direction and an arcuate path along the width direction of the bag. Moreover, in the delivery apparatus described in Patent Document 4, the holding member intermittently rotates by a predetermined angle along a circular movement path, and the bag is intermittently transferred along the width direction.

JP-A-11-236209 JP 2004-175361 A No. 6-46805 Japanese Unexamined Patent Publication No. 63-82922

The delivery device used in the conventional two-rotor type vertical filling and sealing device has the following problems.
(1) When the delivery device described in Patent Documents 1 to 3 is used, the orientation of the front and back surfaces of the bag sandwiched between the grippers of the rotary sealer is the front of the bag sandwiched between the grippers of the rotary filler. It is the opposite of the direction of the back side. For example, if the front side of the bag faces the outer periphery of the transfer path in a rotary filling machine, the front side faces the inner periphery of the transfer path in the rotary sealing machine, and a chute etc. The bag discharged onto the conveyor via the front side faces downward. For this reason, when a manufacturing date, a best-before date, etc. are printed on the front side surface of a bag with a rotary filling machine, the printed front side surface faces down on the conveyor, and the print inspection cannot be performed on the conveyor.

(2) In the delivery device described in Patent Documents 1 to 3, when the rotary filling machine and the rotary sealing machine are installed at a large distance, the distance of the reciprocating movement of the holding member becomes large, and the delivery of the bag Over time, productivity is significantly reduced.
(3) In the delivery devices described in Patent Documents 1 to 3, since the filled bag sandwiched by the sandwiching member is transferred in the thickness direction, the filled bag is shaken during the transfer. Such shaking of the filled bag becomes larger as the transfer distance becomes longer and the transfer speed becomes faster, which causes a delivery failure. Examples of poor delivery include a case where a filled bag is slipped off from the holding member, or the bag is violently collided with the vacuum chamber at the end point of the transfer path, and the bag is damaged.

(4) The delivery device described in Patent Document 4 does not cause the problem (1). When the diameter of the moving path of the holding member is increased and a large number of holding members are arranged along the moving path, the above problem (2) does not occur, and the filled bag is transferred along its width direction. Therefore, the problem (3) does not occur.
However, the delivery device described in Patent Document 4 is significantly increased in size when the rotary filling machine and the rotary sealing machine are installed at a large distance, and a wide circular installation space is required between the two machines. . In addition, it is not applicable when a circular installation space cannot be secured between the two machines, for example, a part of the space between the rotary filling machine and the rotary sealing machine is partitioned by a wall or the like. For this reason, the freedom degree of the layout of the rotary type filling machine and the rotary type sealing device is limited.

  The present invention has been made in view of such problems of the prior art, and in the two-rotor type vertical filling and sealing device, the orientation of the front and back surfaces of the bag sandwiched between the grippers of the rotary type sealing machine is the rotary type. Make it the same as the direction of the front and back surfaces of the bag sandwiched between the grippers of the filling machine, even if the rotary filling machine and the rotary sealing machine are installed far apart, the productivity will not be reduced. The purpose is to avoid the enlargement of the delivery device, to improve the layout flexibility of the rotary filling machine and the rotary sealing device, and to reduce the shaking of the filled bag during the transfer by the delivery device. And

  The present invention suspends both side edges of a bag with a pair of left and right grippers, suspends the bag, intermittently transfers it along a horizontal circular transfer path, and fills the bag with a filling operation in the transfer process. Hold the filled bag with a gripper and hang it, transfer it along a horizontal circular transfer path, and seal the bag mouth against the filled bag in the transfer process The transfer device is disposed between rotary sealing machines to be used, receives a filled bag from a stopped gripper of the rotary filling machine, and transfers the bag to the gripper of the rotary sealing machine. A first delivery device disposed in the vicinity of the filling machine; a second delivery device disposed in the vicinity of the rotary sealer; the first delivery device and the second delivery device; It is disposed between the device consisting of an intermediate transfer device. In the rotary sealing machine, the bag transfer mode may be either an intermittent transfer type or a continuous transfer type.

  In the delivery device, the first delivery device receives a filled bag from the rotary filling machine and delivers the filled bag to the intermediate transfer device, and sandwiches or opens an upper portion of the filled bag. The first holding member moves along a predetermined movement path in a horizontal plane, and changes its direction by 90 degrees in the horizontal plane in the course of the movement. The intermediate transfer device receives a filled bag from the first transfer device and transfers the bag toward the second transfer device, and includes a pair of clamping belts that rotate intermittently in synchronization with each other in a reverse direction within a horizontal plane. A holding belt conveyance mechanism is provided for holding the filled bags and transferring them in the bag width direction. The second delivery device receives a filled bag from the intermediate transfer device and delivers the filled bag to a gripper of the rotary sealing machine, and includes a second clamping member for clamping or opening an upper portion of the filled bag. The second holding member moves along a predetermined movement path in a horizontal plane, and changes its direction by 90 degrees in the same direction as the first holding member in the horizontal plane in the process of movement.

The following configuration can be considered as a preferred embodiment of the delivery device.
(1) The first delivery device includes a first swing arm that reciprocally swings by a predetermined angle within a horizontal plane, and the first clamping member is installed at the tip of the first swing arm so as to be rotatable within the horizontal plane. The second swinging device includes a second swinging arm that reciprocally swings by a predetermined angle in a horizontal plane, the second swinging device rotating 90 degrees in the process of swinging the first swinging arm and changing its direction by 90 degrees. Is installed at the tip of the second swing arm so as to be rotatable in a horizontal plane, and in the process of swinging the second swing arm, rotates in the same direction as the first clamping member and changes its direction by 90 degrees.

(2) The sandwiching belt transport mechanism of the intermediate transfer device includes the upstream sandwiching belt transport mechanism, the intermediate sandwiching belt transport mechanism, and the downstream sandwiching belt transport mechanism arranged in series along the transport direction, In the upstream-side sandwiching belt transport mechanism and the downstream-side sandwiching belt transport mechanism, each of the pair of sandwiching belts can be opened and closed in a horizontal plane, and when it is closed, the filled bag is sandwiched.
In this case, preferably, the pair of sandwiching belts of the upstream sandwiching belt transport mechanism and the intermediate sandwiching belt transport mechanism are disposed at different heights, and each pair of the sandwiching belt transport mechanism and the downstream sandwiching belt transport mechanism is paired. The clamping belts are arranged at different heights.

(3) A pair of sandwiching belts are provided with a plurality of convex sandwiching pieces on each outer peripheral surface, and the sandwiching pieces of each sandwiching belt are opposed to each other on opposite sides of the pair of sandwiching belts. Pinch.
In this case, desirably, a magnet is embedded in the clamping piece, and the opposing clamping pieces of the pair of clamping belts are attracted to each other.
(4) The rotary type sealing machine hangs a bag filled with an object by gripping it with a gripper, transfers it along a horizontal circular transfer path, and transfers it to the filled bag during the transfer process. It is a rotary type vacuum sealing machine that performs vacuum processing and bag mouth sealing operation.

  In the delivery device according to the present invention, the first clamping member of the first delivery device changes its direction 90 degrees in the horizontal plane in the process of movement, and then the second clamping member of the second delivery device in the horizontal plane in the process of movement. Since the orientation is changed 90 degrees in the same direction as the first clamping member, the filled bag received by the first clamping member from the gripper of the rotary filling machine is delivered from the second clamping member to the gripper of the rotary sealing machine. The orientation is changed by 180 degrees. For this reason, the direction of the front and back surfaces of the bag sandwiched between the grippers of the rotary type sealing machine is the same as the direction of the front and back surfaces of the bags sandwiched between the grippers of the rotary type filling machine.

  The delivery device according to the present invention includes a first delivery device, an intermediate transfer device, and a second delivery device. For this reason, even if the rotary type filling machine and the rotary type sealing machine are installed at a large distance and the overall transfer distance by the transfer device becomes long, the individual transfer distances of the first and second transfer devices (the movement of each clamping member) The distance) can be shortened. In particular, the longer the transfer distance of the intermediate transfer device, the shorter the individual transfer distances of the first and second transfer devices. Therefore, even when the rotary type filling machine and the rotary type sealing machine are installed far apart, for the first and second delivery devices, compared to the case where the conventional delivery device (see Patent Documents 1 to 3) is applied, A reduction in productivity can be prevented. As for the intermediate transfer device, the productivity does not decrease even if the transfer distance is long. Therefore, the transfer device according to the present invention as a whole, even when the rotary type filling machine and the rotary type sealing machine are installed largely apart from each other, Compared with the case where a delivery device (see Patent Documents 1 to 3) is applied, a decrease in productivity can be prevented.

  As described above, even when the rotary type filling machine and the rotary type sealing machine are installed at a large distance, the first and second delivery devices can shorten the individual transfer distances. Compared with the case of applying the reference), it is possible to reduce the shaking of the bag during transfer. Moreover, in the said intermediate transfer apparatus, since a bag is transferred in a bag width direction, shaking is small. Therefore, the delivery device according to the present invention as a whole, even when the rotary filling machine and the rotary sealing machine are installed largely apart from each other, compared to the case where the conventional delivery device (see Patent Documents 1 to 3) is applied, The shaking of the bag can be reduced.

  When the rotary filling machine and the rotary sealing machine are installed at a large distance, the conventional delivery device (see Patent Document 4) is remarkably increased in size. However, in the delivery device according to the present invention, the first and second The transfer device can be reduced in size by reducing the transfer distance, and the intermediate transfer device does not need to be increased in size because it does not need to be widened no matter how long the transfer distance is taken. Therefore, as a whole, the delivery device according to the present invention can avoid an increase in size and occupy less space compared to the case where a conventional delivery device (see Patent Document 4) is applied. In addition, the intermediate transfer device can arbitrarily set the transfer distance and occupies a small space, so the layout of the rotary type filling machine and the rotary type sealing machine can be applied to a conventional delivery device (see Patent Document 4). Compared to the case, it is much improved.

1 is an overall plan view of a two-rotor vertical filling seal device to which a delivery device according to the present invention is applied. It is a whole top view of the delivery device concerning the present invention. It is AA arrow sectional drawing of FIG. In the delivery apparatus which concerns on this invention, it is a top view of the part of the upstream clamping belt conveyance mechanism of a 1st delivery apparatus and an intermediate transfer apparatus. In the delivery apparatus which concerns on this invention, it is a top view of the part of the downstream clamping belt conveyance mechanism of a 2nd delivery apparatus and an intermediate transfer apparatus.

Hereinafter, with reference to FIGS. 1-5, the delivery apparatus which concerns on this invention, and the 2 rotor type | formula vertical filling sealing apparatus to which this is applied are demonstrated concretely.
The two-rotor vertical filling and sealing apparatus shown in FIG. 1 includes a rotary filling machine 1, a rotary sealing machine (rotary vacuum sealing machine) 2, and a delivery device 3 disposed between the two machines. This two-rotor filling and sealing device is configured such that a bag is filled with an object to be filled with a rotary filling machine 1, and a filled bag is delivered to a rotary vacuum sealing machine 2 with a delivery device 3, and vacuum treatment of the filled bag is performed. This is a device that seals the bag mouth.

  The rotary type filling machine 1 has a plurality of pairs of left and right grippers 4, 4 that can approach and separate from each other, and are installed at regular intervals around a table 5 that rotates intermittently (left rotation in FIG. 1). The numbers 1 to 10 above indicate the stop position, and a device for performing each step (the following (1) to (10)) is installed, while the table 5 (grippers 4 and 4) rotates once. Then, various packaging processing steps such as supply of the bag 6, filling of the object to be filled, and sealing of the bag mouth as necessary are sequentially performed.

(1) A conveyor magazine type bag feeder 7 is installed at the stop position 1. The bag 6 is supplied to the grippers 4, 4 by the conveyor magazine type bag supply device 7, and the grippers 4, 4 hold both side edges of the bag 6 and suspend them. Subsequently, the grippers 4 and 4 intermittently transfer the bag 6 along the horizontal circular transfer path as the table 5 is intermittently rotated. The surface on the front side of the bag 6 faces the outer peripheral side of the transfer path.
(2) The printing device 8 is installed at the stop position 2. The date of manufacture is printed on the front surface of the bag 6 by the printing device 8.

(3) The bag mouth opening device 9 and the opening holding device 11 are installed at the stop position 3. The bag mouth of the bag 6 is opened by the pair of suction cups 12, 12 of the bag mouth opening device 9, and then the pair of opening holding claws 13, 13 of the opening holding device 11 are inserted into the opened bag mouth. This opening holding device 11 is a so-called follow-up type, and with the intermittent rotation of the table 5, it moves from the stop position 3 to the stop position 4 together with the grippers 4, 4 and the bag 6. Immediately after being inserted into the bag 6, it rises and comes out of the bag 6 and returns to the stop position 3.

(4) The liquid filling nozzle 14 is installed at the stop position 4. The liquid filling nozzle 14 is inserted into the bag 6 and filled with an object to be filled (liquid).
(5) A hopper 15 is installed at the stop position 5. The hopper 15 is inserted into the bag 6 and filled with an object to be filled (solid matter).
(6) The liquid filling nozzle 16 is installed at the stop position 6. The liquid filling nozzle 16 is inserted into the bag 6 and filled with an object to be filled (liquid).
(7) The air ejection nozzle 17 is installed at the stop position 7. The air ejection nozzle 17 is inserted into the bag 6, and the portion to be sealed at the bag mouth is cleaned by the ejection air.

(8) The sealing device 18 is installed at the stop position 8. The bag mouth of the bag 6 is sandwiched and sealed between a pair of hot plates 19 and 19.
(9) The cooling device 21 is installed at the stop position 9. The seal portion of the bag 6 is sandwiched between the pair of cooling plates 22 and 22 and cooled.
(10) The grippers 4 and 4 are opened at the stop position 10, and the filled and sealed bag 6 is opened. The bag 6 is carried out by the product bag carrying-out conveyor 23 installed below.

  The above packaging process by the rotary filling machine 1 is performed when the bag 6 filled with the filling material by the rotary filling machine 1 becomes a bag product as it is (no vacuum treatment by the rotary vacuum sealing machine 2 is performed). belongs to. When the filled bag 6 is subsequently sent to the rotary vacuum sealer 2 to perform vacuum processing and bag mouth sealing operation, the sealing step (8) and the cooling step (9) are not performed. .

  The rotary vacuum sealer 2 includes a table 25 that rotates intermittently (right rotation in FIG. 1) while repeating movement and stop, and a chamber body 26 is installed around the table 25 at equal intervals, corresponding to each chamber body 26. Then, the chamber lid 27 is installed so as to be freely opened and closed, and the chamber body 26 and the chamber lid 27 constitute a vacuum chamber 28. The chamber body 26 intermittently moves on the horizontal circular movement path with the intermittent rotation of the table 25 (numbers 1 to 12 on the table indicate the stop position), and the object to be filled is rotated while the table 25 rotates once. Various vacuum processing steps such as reception of the bag 6 filled with the above, closure of the chamber lid 27, vacuum processing in the vacuum chamber 28, and sealing of the bag mouth are sequentially performed.

The chamber body 26 is attached to the periphery of the table 25 radially at equal intervals with the openings directed outward. A lever 29 is fixed to the upper end of the chamber lid 27 (see FIG. 3), and a shaft 31 fixed to the tip of the lever 29 is rotatably supported by a support member 32 fixed to the upper end of the chamber body 26. . The chamber lid 27 is opened and closed at a predetermined timing by an opening / closing mechanism (a chamber lid opening / closing arm 34 connected to the chamber lid 27 via a link 33 is shown as a part of the opening / closing mechanism) with respect to the opening of the chamber body 26. When closed, the chamber main body 26 and the peripheral edge of the opening are in close contact to form a vacuum chamber 28.
A vacuum pipe (both not shown) connected to a vacuum pump and a switching valve as a pressure reducing mechanism is connected to the chamber main body 26, and a close contact portion between the chamber main body 26 and the chamber lid 27 (opening peripheral portion of the chamber lid 27). ), A packing (not shown) is inserted over the entire circumference.

  As shown in FIG. 3, in the vacuum chamber 28, a gripper 35 and a sealing device for gripping a slightly lower portion of the bag 6 to be sealed are installed. The gripper 35 includes a fixed portion 35a that is horizontally fixed to the chamber body 26, and a movable portion 35b that is swingably installed on the chamber body 26 within a horizontal plane (see Japanese Patent No. 2538473). The opening / closing mechanism 36 of the movable portion 35b includes an air cylinder (not shown). When the air cylinder operates at a predetermined timing, the movable portion 35b swings and the gripper 35 opens and closes. The sealing device includes a receiving base 38 installed in the chamber body 26 and advanced and retracted by an air cylinder 37 and a heater device (not shown) installed in the chamber lid 27.

In the rotary type vacuum sealing machine 2, the vacuum processing and the sealing operation are executed as follows, for example, at each stop position (numbers 1 to 12 on the table indicate the stop position).
(1) At the stop position 1, the chamber lid 27 is fully opened, the filled bag 6 is sent from the delivery device 3 into the chamber body 26, the opened gripper 35 is closed, and a position slightly below the planned seal portion Is gripped. The filled bag 6 sandwiched between the grippers 35 is subsequently transferred along a circular transfer path.
(2) While the chamber body 26 moves from the stop position 1 to the stop position 3, the chamber lid 27 is closed by the opening / closing mechanism, and a bag is formed between the shaping plate (not shown) installed in the chamber body 26 and the chamber lid 27. 6 is performed (see JP-A-9-48409). In the stop position 3, the chamber lid 27 is completely closed.

(3) Subsequently, the inside of the vacuum chamber 28 is sequentially evacuated to a predetermined pressure (preliminary evacuation at stop position 4, primary evacuation at stop position 5, and secondary evacuation at stop position 6). Then, the air cylinder 37 is operated at the stop position 7, and the bag 6 is heat-sealed under reduced pressure by the receiving base 38 and the heater device.
(4) After the sealing portion is cooled to the stop positions 8 to 10, the atmosphere is introduced into the vacuum chamber 28 to release the reduced pressure state in the vacuum chamber 28, and the chamber lid 27 is then opened by the opening / closing mechanism. At the stop position 11, the chamber lid 27 is completely opened.
(5) At the stop position 12, the gripper 35 is opened, and the bag 6 that has undergone vacuum processing falls onto the vacuum-processed product bag carry-out conveyor 39, and is transferred onto the product bag carry-out conveyor 23 by the junction chute 41 and carried out. .

  The delivery device 3 receives the filled bags 6 from the grippers 4 and 4 stopped at the stop position 10 of the rotary filling machine 1 and delivers them to the gripper 35 stopped at the stop position 1 of the rotary vacuum sealing machine 2. Between the first delivery device 42 disposed in the vicinity of the rotary filling machine 1, the second delivery device 43 disposed in the vicinity of the rotary vacuum sealer 2, and between the first delivery device 42 and the second delivery device 43. It consists of the intermediate transfer apparatus 44 arrange | positioned.

  The first delivery device 42 receives the filled bags 6 from the grippers 4 and 4 stopped at the stop position 10 of the rotary filling machine 1 and delivers them to the intermediate transfer device 44. As shown mainly in FIGS. Rotating shaft 45 connected to a driving source (not shown) and reciprocatingly rotated, and a base end portion is fixed to the upper end of rotating shaft 45, and reciprocatingly swings within a predetermined angle range in a horizontal plane as reciprocating rotation of rotating shaft 45 occurs. And a first clamping member 47 installed at the tip of the first swing arm 46. The first clamping member 47 includes a pair of clamping pieces 47a and 47b (see FIG. 4), and is fixed to the opening and closing claw portions 49 and 49 of the opening and closing air cylinder 48, and the opening and closing air cylinder 48 (see FIG. 3) is the first. 1 is fixed to the output shaft of the rotation motor 51 fixed to the tip of the swing arm 46.

  The first clamping member 47 (the clamping pieces 47a and 47b) reciprocates along the arcuate movement path (first movement path) in the horizontal plane along with the reciprocating swing of the first swing arm 46 for opening and closing. By the operation of the air cylinder 48, it closes at the start point (end on the rotary filling machine 1 side) of the first movement path and opens at the end point (end on the intermediate transfer device 44 side). Further, the first clamping member 47 is rotated by a predetermined angle (right rotation) in a plan view with respect to the first swing arm 46 while moving on the forward path of the first movement path by the operation of the rotation motor 51, and the return path Rotate the same angle backward while moving When the swing angle of the first swing arm 46 is θ1 and the rotation angle of the first clamping member 47 with respect to the first swing arm 46 is θ2, the swing angle θ1 and the rotation angle θ2 are θ1 + θ2 = 90 °. It is set to be. Accordingly, while the first holding member 47 moves from the start point to the end point of the first movement path, the filled bag 6 held between the first holding member 47 and the first holding member 47 is rotated clockwise in a plan view. Turn 90 °.

  The second delivery device 43 receives the filled bag 6 from the intermediate transfer device 44 and delivers it to the gripper 35 stopped at the stop position 1 of the rotary vacuum seal device 2. As shown mainly in FIGS. Further, the rotary shaft 52 connected to a drive source (not shown) and reciprocatingly rotated, and the base end portion are fixed to the upper end of the rotating shaft 52, and the reciprocating rotation of the rotary shaft 52 reciprocates within a predetermined angle range within a horizontal plane. It has a second swing arm 53 that moves, and a second clamping member 54 installed at the tip of the second swing arm 53. The second clamping member 54 includes a pair of clamping pieces 54 a and 54 b and is fixed to the opening and closing claws 56 and 56 of the opening and closing air cylinder 55, and the opening and closing air cylinder 55 is fixed to the distal end portion of the second swing arm 53. The rotation motor 57 is fixed to the output shaft.

  The second clamping member 54 (clamping pieces 54a and 54b) reciprocates along a circular movement path (second movement path) in the horizontal plane as the second swing arm 53 swings back and forth. By the operation of the air cylinder 55, it closes at the start point (end on the intermediate transfer device 44 side) of the second movement path and opens at the end point (end on the rotary vacuum sealer 2 side). Further, the second clamping member 54 rotates by a predetermined angle (right rotation) in a plan view with respect to the second swing arm 53 while moving on the forward path of the second movement path by the operation of the motor 57 for rotation, and returns to the return path. Rotate the same angle backward while moving When the swing angle of the second swing arm 53 is θ3 and the rotation angle of the second clamping member 54 with respect to the second swing arm 53 is θ4, the swing angle θ3 and the rotation angle θ4 are θ3 + θ4 = 90 °. It is set to be. Accordingly, while the second holding member 54 moves from the start point to the end point of the second movement path, the filled bag 6 held between the second holding member 54 and the second holding member 54 is rotated 90 ° clockwise when viewed in plan. ° Change direction.

  The intermediate transfer device 44 transfers the filled bag 6 received from the first delivery device 42 toward the second delivery device 43, and includes an upstream side clamping belt conveyance mechanism 58, an intermediate clamping belt conveyance mechanism 59, and a downstream side. Three clamping belt conveyance mechanisms comprising side clamping belt conveyance mechanisms 60 are provided. The transfer path of the filled bags 6 by the intermediate transfer device 44 is linear. Hereinafter, the intermediate transfer device 44 will be described with reference to FIGS.

  The intermediate clamping belt conveyance mechanism 59 includes pulleys 61 and 62 and an intermediate clamping belt 63 stretched around the pulleys 61 and 62, and pulleys 64 and 65 and an intermediate clamping belt 66 stretched around the circumference. The pulleys 61, 62, 64, and 65 have the same diameter and are installed at the same height, the distance between the pulleys 61 and 62 is equal to the distance between the pulleys 64 and 65, and the distance between the pulleys 61 and 64 and the distance between the pulleys 62 and 65. Are also equal. The pair of intermediate clamping belts 63 and 66 have the same shape in plan view, and are installed at the same height in the horizontal plane and adjacent to each other in parallel.

  A plurality of sets (eight sets in this example) each consisting of four clamping pieces 67 are installed on the outer periphery of each intermediate clamping belt 63, 66, and the installation interval P between adjacent groups (see FIG. 2) is constant. It is. On the opposite side (clamping side) of the pair of intermediate clamping belts 63, 66, the clamping pieces 67 of the intermediate clamping belts 63, 66 are opposed to and in close contact with each other, and the filled bag 6 is sandwiched therebetween. A magnet 68 is embedded in each clamping piece 67 so that the opposing clamping pieces 67 are attracted to each other. For this reason, it is not necessary to apply a clamping force (pressing force) to the pair of intermediate clamping belts 63 and 66 itself, and the structure of the intermediate clamping belt conveyance mechanism 59 can be simplified and the durability can be improved. In addition, a reliable and stable clamping force with no variation among bags can be obtained.

Fixed frames 69 and 70 are installed on a machine base (not shown), shafts 71 and 72 are rotatably installed on the fixed frame 69, shafts 73 and 74 are rotatably installed on the fixed frame 70, and shafts 71 to 74 are installed. The pulleys 61, 62, 64 and 65 are fixed, respectively. The driven gears 75 and 76 having the same dimensions are fixed to the upper ends of the shafts 71 and 73, respectively, and mesh with each other. A drive motor 78 is installed on a stand 77 installed on the fixed frames 69 and 70, and a drive gear 79 fixed to the output shaft is engaged with the driven gear 76.
The driving motor 78 rotates intermittently, and the driving force is transmitted to the pulleys 61 and 64 through the driving gear 79, the driven gears 75 and 76 and the shafts 71 and 73, and the pair of intermediate clamping belts 63 and 66 are synchronized. Intermittently rotating in opposite directions. A moving distance (one pitch) of one pair of intermediate clamping belts 63 and 66 for one intermittent rotation coincides with the installation interval P.

  The upstream clamping belt conveyance mechanism 58 includes pulleys 81 and 82 and an upstream clamping belt 83 stretched around the pulleys 81 and 82, and pulleys 84 and 85 and an upstream clamping belt 86 stretched around the circumference. The pulley 81 is fixed to the shaft 72 like the pulley 62 and has the same diameter as the pulley 62 and is located below the pulley 62. The pulley 84 is fixed to the shaft 74 like the pulley 65 and the same diameter as the pulley 65. Located below. A plurality of sets of four clamping pieces 67 (two sets in this example) are also installed on the outer periphery of the upstream clamping belts 83 and 86, and the interval between adjacent groups is set to the installation interval P.

The pulley 82 is fixed at the same height as the pulley 81 on a shaft 87 that is rotatably installed on the fixed frame 69. A base portion of the swing frame 88 is swingably installed on the shaft 74 in a horizontal plane, and the pulley 85 is fixed to a shaft 89 that is rotatably mounted on the tip end portion of the swing frame 88.
When the driving motor 78 rotates intermittently, the driving force is transmitted to the pair of upstream clamping belts 83 and 86 via the shafts 72 and 74, and the pair of upstream clamping belts 83 and 86 are intermittently synchronized. Rotate in opposite directions. A pair of upstream clamping belts 83 and 86 has a distance (one pitch) of intermittent rotation that coincides with the installation interval P.

An opening / closing lever 91 is fixed to the lower portion of the swing frame 88, an air cylinder support plate 92 is fixed to the lower surface of the fixed frame 70, and a tail portion of the opening / closing air cylinder 93 is rotatably connected to the air cylinder support plate 92; The tip of the cylinder rod is rotatably connected to the end of the opening / closing lever 91.
When the open / close air cylinder 93 expands and contracts, the swing frame 88 swings about the shaft 74, and the upstream holding belt 86 moves between the solid line and the two-dot chain line in FIG. Swing. The position indicated by the solid line is the clamping position of the upstream clamping belt 86. When the upstream clamping belt 86 comes to this clamping position, the pair of upstream clamping belts 83, 86 are closed, and these opposing sides (nipping) Side) are close and parallel. Further, the holding pieces 67 of the upstream holding belts 83 and 86 face each other on the opposite sides (holding sides) of the pair of upstream holding belts 83 and 86, and the filled bag 6 is interposed therebetween. It is pinched. Note that the position of the two-dot chain line in FIG. 4 is the open position of the upstream clamping belt 86.

  The downstream side clamping belt conveyance mechanism 60 has a structure that is substantially rotationally symmetric with respect to the upstream side clamping belt conveyance mechanism 58, and includes pulleys 94 and 95, a downstream side clamping belt 96 stretched around the pulleys 94, 95, and Pulleys 97 and 98 and a downstream clamping belt 99 stretched around the pulleys 97 and 98 are included. The pulley 94 is fixed to the shaft 71 like the pulley 61 and has the same diameter as the pulley 61 and is located below the pulley 61. The pulley 97 is fixed to the shaft 73 like the pulley 64 and the same diameter as the pulley 64. Located below. A plurality of sets of four clamping pieces 67 (two sets in this example) are also installed on the outer periphery of the downstream clamping belts 96 and 99, and the interval between adjacent groups is also set to the installation interval P.

The pulley 98 is fixed at the same height as the pulley 97 to a shaft 101 that is rotatably installed on the fixed frame 70. Further, the base of the swing frame 102 is swingably installed on the shaft 71 in a horizontal plane, and the pulley 95 is fixed to the shaft 103 rotatably installed at the tip of the swing frame 102.
When the drive motor 78 rotates intermittently, the driving force is transmitted to the pair of downstream clamping belts 96 and 99 via the shafts 71 and 73, and the pair of downstream clamping belts 96 and 99 are intermittently synchronized. Rotate in opposite directions. A pair of downstream clamping belts 96, 99 has a moving distance (one pitch) of one intermittent rotation that coincides with the installation interval P. The pair of upstream clamping belts 83 and 86 and the pair of downstream clamping belts 96 and 99 are installed at the same height.

An open / close lever 104 is fixed to the lower part of the swing frame 102, an air cylinder support plate 105 is fixed to the lower surface of the fixed frame 69, and a tail portion of the open / close air cylinder 106 is rotatably connected to the air cylinder support plate 105, The tip of the cylinder rod is rotatably connected to the end of the opening / closing lever 104.
When the open / close air cylinder 106 is expanded and contracted, the swing frame 102 swings about the shaft 71, and the downstream clamping belt 96 extends between the solid line and the two-dot chain line in FIG. Swing. The position indicated by the two-dot chain line is the clamping position of the downstream clamping belt 96. When the downstream clamping belt 96 comes to this clamping position, the pair of downstream clamping belts 96, 99 are closed, and these opposing sides The (clamping side) is close and parallel. Further, the holding pieces 67 of the downstream holding belts 96 and 99 face each other on the opposite sides (holding sides) of the pair of downstream holding belts 96 and 99, and the filled bag 6 is interposed therebetween. It is pinched. In addition, the position of the continuous line of FIG. 5 is an open position of the downstream clamping belt 96. FIG.

Next, an example of the operation of the delivery device 3 will be described. The operations of the rotary filling machine 1, the rotary vacuum sealing machine 2 and the delivery device 3 are all controlled by the control device 107.
(1) Delivery by the first delivery device 42 (a) The first clamping member 47 stands by at the start point of the first movement path (the position of the two-dot chain line in FIG. 4). When the grippers 4 and 4 holding the filled bag 6 (the bag mouth is not sealed) are stopped at the stop position 10 of the rotary filling machine 1, the open / close air cylinder 48 is activated to operate the first holding member. 47 closes and the upper part of the filled bag 6 is clamped. At the starting point of the first movement path, the first clamping member 47 is located immediately above the filled bag 6 clamped by the grippers 4 and 4 stopped at the stop position 10, and the first clamping member 47 (the clamping pieces 47a, The longitudinal direction of 47b) is parallel to the bag width direction.

(B) The grippers 4 and 4 are opened to open the filled bag 6.
(C) The first swing arm 46 swings, and the first holding member 47 holding the filled bag 6 moves in the horizontal plane along the first movement path. At the same time, the rotation motor 51 rotates, and the first clamping member 47 and the filled bag 6 rotate in a horizontal plane. When the first clamping member 47 moves, in the upstream side clamping belt conveyance mechanism 58 of the intermediate transfer device 44, the open / close air cylinder 93 is actuated to contract the cylinder rod, and the upstream side clamping belt 86 is connected to the two-dot chain line in FIG. A pair of upstream clamping belts 83 and 86 are open at the open position shown in FIG. When the first sandwiching member 47 reaches the end point of the first transfer path, the first sandwiching member 47 and the filled bag 6 turn 90 ° by rotating clockwise from the original direction, and the filled bag 6 bag. The width direction coincides with the conveyance direction of the upstream nipping belt conveyance mechanism 58.

(D) The opening / closing air cylinder 93 of the upstream clamping belt transport mechanism 58 operates in reverse to extend the cylinder rod, and the upstream clamping belt 86 comes to the clamping position shown by the solid line in FIG. The belts 83 and 86 are closed, and the filled bag 6 held by the first holding member 47 is held by the left and right holding pieces 67. The first clamping member 47 is located slightly above the pair of upstream clamping belts 83 and 86.
(E) The open / close air cylinder 48 of the first delivery device 42 operates in reverse to open the first clamping member 47, and the filled bag 6 is opened. Subsequently, the first swing arm 46 swings in the reverse direction, and at the same time, the rotation motor 51 rotates in the reverse direction, and the first clamping member 47 moves toward the starting point along the first movement path, And turn 90 degrees with left rotation.

(2) Transfer by the intermediate transfer device 44 After the pair of upstream clamping belts 83 and 86 are closed (the pair of downstream clamping belts 96 and 99 are also closed) and the first clamping member 47 is opened, the drive motor 78 is rotated. The pair of upstream clamping belts 83 and 86, the pair of intermediate clamping belts 63 and 66, and the pair of downstream clamping belts 96 and 99 are simultaneously rotated by one pitch and stopped. As a result, the filled bag 6 held by the pair of upstream holding belts 83 and 86 is transferred to the pair of intermediate holding belts 63 and 66, and the filling that has been held by the pair of intermediate holding belts 63 and 66 is performed. The frontmost bag among the completed bags 6 is transferred to the pair of downstream side clamping belts 96 and 99.

(3) Delivery by the second delivery device 43 (a) The second clamping member 54 stands by at the start point of the second movement path (the position of the two-dot chain line in FIG. 5). When the pair of downstream clamping belts 96 and 99 holding the filled bag 6 stops, the open / close air cylinder 55 is actuated to close the second clamping member 54 and clamp the upper portion of the filled bag 6. At the starting point of the second movement path, the second holding member 54 is located immediately above the filled bag 6 held by the pair of downstream holding belts 96, 99, and the second holding member 54 (the holding pieces 54a, 54b). ) In the longitudinal direction is parallel to the bag width direction. The second clamping member 54 is positioned at the same height as the first clamping member 47.

(B) In the downstream side clamping belt conveyance mechanism 60, the opening / closing air cylinder 106 is actuated to retract the cylinder rod, and the downstream side clamping belt 96 moves to the open position shown by the solid line in FIG. 96 and 99 are opened to open the filled bag 6.
(C) The second swing arm 53 swings, and the second holding member 54 holding the filled bag 6 moves in the horizontal plane along the second movement path. At the same time, the rotation motor 57 rotates, and the second holding member 54 and the filled bag 6 rotate in a horizontal plane. At this time, the vacuum chamber 28 is stopped at the stop position 1 of the rotary vacuum sealer 2. When the second sandwiching member 54 reaches the end point of the second transfer path, the second sandwiching member 54 and the filled bag 6 turn 90 ° by rotating clockwise from the initial direction, and the filled bag 6 is filled. The width direction is parallel to the clamping surface of the gripper 35 (particularly the fixed portion 35a) stopped at the stop position 1. Further, when the second clamping member 54 reaches the end point of the second transfer path, the open / close air cylinder 106 operates in reverse to extend the cylinder rod, and the downstream clamping belt 96 becomes a two-dot chain line in FIG. The pair of downstream clamping belts 96 and 99 are closed.

(D) The gripper 35 in the vacuum chamber 28 stopped at the stop position 1 is closed, and the filled bag 6 sandwiched by the second sandwiching member 54 is sandwiched. The gripper 35 is located slightly below the second clamping member 54.
(E) The open / close air cylinder 55 is operated in reverse to open the second clamping member 54 and open the filled bag 6. Subsequently, the second swing arm 53 swings in the reverse direction, simultaneously the rotation motor 57 rotates in the reverse direction, and the second clamping member 54 moves toward the starting point along the second movement path, And turn 90 degrees with left rotation.

In the above, one embodiment of the delivery apparatus according to the present invention and an example of the operation have been described. However, the delivery apparatus according to the present invention can take various other embodiments as follows.
(1) In the above example, the rotary vacuum sealer 2 is intermittently rotated, but the delivery device according to the present invention can also be applied to a continuous rotary rotary vacuum sealer. The application to the continuous rotary rotary vacuum seal machine is such that the holding member 54 of the second delivery device 43 follows the rotation of the vacuum chamber 28 at the end point of the second movement path (see, for example, Patent Document 3). This is possible.

(2) In the above example, in the first delivery device 42, the swing arm 46 is used to change the direction of the first clamping member 47 (and the filled bag 6) moving along the first movement path by 90 °. Is swung at an angle of θ1 and the first holding member 47 is rotated at an angle of θ2 with respect to the swinging arm 46. This is only the swinging of the swinging arm 46 (the first holding member 47 is swung). It is also possible to do this by not rotating the moving arm 46. In this case, the swing arm 46 is swung 90 °. Alternatively, instead of using the swing arm 46, the movement path of the first clamping member 47 may be a linear path, for example, and the first clamping member 47 may be rotated 90 degrees during movement along the movement path. The above points can be similarly implemented in the second delivery device 43.

(3) In the above example, the upstream clamping belt conveyance mechanism 58 is provided as a part of the clamping belt conveyance mechanism of the intermediate transfer device 44, and the pair of upstream clamping belts 83 and 86 are opened and closed. is not. When the pair of upstream clamping belts 83 and 86 are not opened and closed, the movement path of the first clamping member 47 of the first delivery device 42 is changed, and the filled bag 6 is placed between the pair of upstream clamping belts 83 and 86. What is necessary is just to send in linear. The above points can be similarly implemented in the downstream clamping belt conveyance mechanism 60. In the case where both the upstream side clamping belts 83 and 86 and the downstream side clamping belt are not opened and closed, the clamping belt conveyance mechanism of the intermediate transfer device 44 may be configured by only the intermediate clamping belt conveyance mechanism 59.

(4) When the rotary filling machine 1 performs not only filling of an object to be filled but also sealing of the bag mouth, for example, the following changes are possible. In the first delivery device 42, the pair of sandwiching pieces 47a, 47b of the first sandwiching member 47 is replaced with a pair of cooling plates, and the cooling device 21 disposed at the stop position 9 of the rotary filling machine 1 is replaced with a sealing device (second device). Replace with seal device. Further, in the intermediate transfer device 44, the pair of upstream clamping belts 83 and 86 of the upstream clamping belt transport mechanism 58 are opened. In this case, after the sealing is performed twice in the rotary filling machine 1, the sealing portion is cooled during the transfer by the first delivery device 42. When the pair of cooling plates of the first clamping member 47 are opened at the end point of the first movement path, the filled bags 6 are discharged onto the product carry-out conveyor 23.

DESCRIPTION OF SYMBOLS 1 Rotary type filling machine 2 Rotary type vacuum sealing machine 3 Delivery device 4 Gripper 6 of rotary type filling machine Bag 26 Chamber main body 27 Chamber lid 28 Vacuum chamber 35 Gripper 42 of rotary type vacuum sealing machine First delivery device 43 Second delivery device 44 Intermediate transfer device 46 First swing arm 47 First sandwiching members 51, 57 Rotating motor 53 Second swing arm 54 Second sandwiching member 58 Upstream sandwiching belt transport mechanism 59 Intermediate sandwiching belt transport mechanism 60 Downstream sandwiching belt Conveying mechanisms 61, 62, 64, 65 Intermediate clamping belt pulleys 63, 66 Intermediate clamping belt 78 Drive motors 81, 82, 84, 85 Upstream clamping belt pulleys 83, 86 Upstream clamping belts 93, 106 Open / close air cylinder 94, 95, 97, 98 Downstream clamping belt pulley 9 , 99 downstream clamping belt

Claims (7)

Rotary-type filling, in which both side edges of the bag are suspended by a pair of left and right grippers, intermittently transferred along a horizontal circular transfer path, and the bag is filled with filling material during the transfer process A rotary seal that holds a filled bag with a gripper, hangs it, moves it along a horizontal circular transfer path, and performs a sealing operation on the filled bag during the transfer process In a delivery device that is disposed between the machines and receives a filled bag from the gripper stopped in the rotary type filling machine and delivers it to the gripper of the rotary type sealing machine, the first is arranged in the vicinity of the rotary type filling machine. A delivery device, a second delivery device disposed in the vicinity of the rotary sealer, and an intermediate transfer disposed between the first delivery device and the second delivery device. The first delivery device receives a filled bag from the rotary filling machine and delivers it to the intermediate transfer device, and includes a first clamping member for clamping or opening an upper portion of the filled bag. The first holding member moves along a predetermined movement path in a horizontal plane, changes its direction by 90 degrees in the horizontal plane in the process of movement, and the intermediate transfer device is filled from the first delivery device. Holding the bag and transferring it toward the second delivery device. The holding bag holds the filled bag by a pair of holding belts that rotate intermittently in synchronism with each other in the opposite direction in a horizontal plane and transfers the bag in the bag width direction. The second transfer device receives a filled bag from the intermediate transfer device and transfers it to the gripper of the rotary sealer. The second holding member moves along a predetermined movement path in the horizontal plane, and in the course of the movement, the second holding member 90 is moved in the same direction as the first holding member. A pre-filled bag delivery device characterized by changing the direction. The first delivery device includes a first swing arm that reciprocally swings by a predetermined angle in a horizontal plane, and the first clamping member is rotatably installed in a horizontal plane at a tip of the first swing arm, 1 oscillating arm rotates in the process of oscillating and changes its direction by 90 degrees, the second delivery device includes a second oscillating arm that reciprocally oscillates by a predetermined angle within a horizontal plane, and the second clamping member 2 is installed at the tip of the swing arm so as to be rotatable in a horizontal plane, and in the process of swinging the second swing arm, rotates in the same direction as the first clamping member and changes its direction by 90 degrees. The delivery device for filled bags according to claim 1. The sandwiching belt transport mechanism of the intermediate transfer device includes an upstream sandwiching belt transport mechanism, an intermediate sandwiching belt transport mechanism, and a downstream sandwiching belt transport mechanism arranged in series along the transport direction. 3. The belt conveying mechanism and the downstream-side nipping belt conveying mechanism, wherein each of the pair of nipping belts can be opened and closed in a horizontal plane, and when the bag is closed, the filled bag is nipped. Delivery device for filled bags. The pair of clamping belts of the upstream clamping belt conveyance mechanism and the intermediate clamping belt conveyance mechanism are arranged at different heights, and the pair of clamping belts of the intermediate clamping belt conveyance mechanism and the downstream clamping belt conveyance mechanism are different from each other. 4. The filled bag delivery device according to claim 3, wherein the bag delivery device is filled with a bag. The pair of sandwiching belts is provided with a plurality of convex sandwiching pieces on the outer peripheral surfaces thereof, and the sandwiching pieces of the respective sandwiching belts face each other on the opposite sides of the pair of sandwiching belts to sandwich the filled bag. The device for transferring a filled bag according to any one of claims 1 to 4. The filled bag delivery device according to claim 5, wherein magnets are embedded in the sandwiching pieces, and opposing sandwiching pieces of the pair of sandwiching belts are attracted to each other. The rotary type sealing machine hangs a bag filled with an object by gripping it with a gripper, transfers it along a horizontal circular transfer path, and vacuum-processes the filled bag during the transfer process. And a filling device for a filled bag according to any one of claims 1 to 6, which is a rotary-type vacuum sealing machine that performs a sealing operation of the bag mouth.

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