JP2011162239A - Bag inverting device for vertical bag form-fill-sealing packing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a baglike pack inverting device which can invert a baglike pack manufacture by a vertical bag form-fill-sealing packing machine, at a speed corresponding to a high-speed operation of the packing machine. <P>SOLUTION: A turret 40 having a plurality of accommodating pockets 42a and 42b is rotated always in the same direction by a motor 41. A baglike body 7 which is divided in the middle of a lateral seal formed by lateral sealers 24a and 24b of the vertical bag form-fill-sealing packing machine is inverted by an intermittent rotation of the turret after being received in each of the accommodating pockets, and is then discharged downwardly in front of the turret. Therefore, the baglike bodies, which are continuously and sequentially manufactured at high speed, can be inverted without wasting time, and the vertical bag form-fill-sealing packing machine can support the high-speed operation. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bag packaging body inversion device used in a vertical bag making and filling machine for producing a bag packaging body.

  Conventionally, in a general vertical bag making and filling machine as shown in FIG. 8, a belt-like packaging material Fw fed in a downstream direction by a pair of paper feed belts 26 a and 26 b is made by a bag making machine 6. The cylindrical packaging material is formed by wrapping from the rear side of the cylinder 22 to bend and forming the longitudinal seal 4 by sticking both ends in the width direction of the belt-shaped packaging material Fw on the front side of the bag-filling cylinder 22 with the vertical sealers 28a and 28b. Formed into Ft, the packaged product is put into the bag-filling cylinder 22 and filled into the cylindrical packaging material Ft, and further, a horizontal seal 3 is applied in a direction across the cylindrical packaging material Ft by the horizontal sealers 24a and 24b. By cutting in the middle of the horizontal seal 3, the bag package 7 is manufactured. The manufactured bag package 7 is guided by a guide chute 27, transferred to a transport device 30 such as a belt conveyor, and further transported to a downstream portion where an inspection device and a boxing device are disposed. In this case, the bag packaging body 7 is discharged from the vertical bag making and packaging machine with the surface to which the vertical seal 4 is applied facing upward, and is conveyed downstream.

  When the bag packaging body 7 manufactured by the vertical bag making filling and packaging machine is packed in a box, it is usually packed in the box with the vertical seal surface of the bag packaging body facing down. For this reason, a reversing device using an air cylinder as a drive source may be provided at the discharge portion of the vertical bag making filling and packaging machine (Patent Document 1). An example of such a reversing device using an air cylinder as a drive source is shown in FIG. 9A is a schematic view of the reversing device as viewed from the front, FIG. 9B is a schematic view of the reversing device as viewed from the side, and shows its configuration. FIGS. 9C to 9E are horizontal views. The operation is shown in the schematic diagram seen from FIG.

  As shown in FIGS. 9 (a) and 9 (b), the reversing device includes a guide chute 27, a thrust plate 31 and a thrust cylinder 35 for driving the guide chute 27, and a stopper plate 32. A stopper cylinder 36 for driving is provided. The guide chute 27 is formed with a pushing opening 33 through which the pushing plate 31 can pass and a stopper opening 34 through which the stopper plate 32 can pass. The pushing cylinder 35 and the stopper cylinder 36 are attached to a lower base (not shown) of the vertical bag making filling and packaging machine.

  The operation of the reversing device is composed of the following three movements. As shown in FIG. 9 (c), the first operation is to detect the fall of the bag package 7 and to operate the stopper cylinder 36 to advance the stopper plate 32 through the stopper opening 34. The operation is to receive the falling bag packaging body 7. As shown in FIG. 9 (d), the next operation is to move the push-push plate 31 forward through the push-push opening 33 by operating the push-push cylinder 35 and push the bag package 7 forward. Drop to fall down. By this operation, the bag package 7 is discharged with the vertical seal as the bottom surface. Finally, as shown in FIG. 9E, the stopper cylinder 36 and the thrusting cylinder 35 are released, and the stopper plate 32 and the thrusting plate 31 are moved backward.

  As described above, since the reciprocating motion obtained by applying or releasing the air pressure to the air cylinder is used as it is, the structure and operation are simple, but the reciprocating motion is shown in FIG. 9 (e). The return operation time is wasted time that does not contribute to the operation of inverting the bag. If the bag falls during the return operation, the reversing operation may not be performed or an incomplete operation may occur. For this reason, there exists a limit in the inversion processing capability of a bag packaging body, and it is in the situation where it cannot respond when a vertical type bag making filling packaging machine performs high-speed operation.

JP-A-7-285511

  In recent years, a higher speed operation is desired for the vertical bag making and filling machine, and the bag packaging body reversing device is also required to operate at a higher speed. The present invention provides a bag wrapping device inverting device corresponding to the high-speed operation of a vertical bag making filling and packaging machine that does not waste time by devising a mechanism that does not sequentially return to each inverting operation of the bag wrapping material. To do.

  The bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention is a cylindrical shape in which both ends in the width direction of a curved belt-shaped packaging material are bonded together to provide a vertical seal, and a packaged product is charged or filled. It is installed under the horizontal sealer in a vertical bag making and packing machine that manufactures bag packaging by applying a horizontal seal with a horizontal sealer in the direction across the packaging material and cutting in the middle of the horizontal seal. And a turret provided with a plurality of storage pockets that are circumferentially divided around the rotating shaft, and the turret can be received and stored in the storage pocket at the receiving position. Then, the bag packaging body stored in the storage pocket rotates in the direction in which the vertical seal side is facing, and the subsequent bag packaging body follows the timing when the subsequent storage pocket arrives at the receiving position. Yield Repeats the operation to be accommodated in the pocket, the bag package housed in the housing pocket is the longitudinal seal is characterized in, that the discharging state at the bottom.

  In the bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention, the storage pocket divides the space in the turret by a plurality of partition plates arranged radially around the rotation shaft. Can be formed.

  In the bag packaging body inverting device of the vertical bag making filling and packaging machine according to the present invention, the storage pocket is formed by a plurality of prismatic boxes that are radially arranged around the rotation shaft and open radially outward. can do.

  In the bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention, the vertical seal is performed on the front side of the vertical bag making filling and packaging machine, and the horizontal sealer is arranged before and after the vertical bag making filling and packaging machine. The turret is rotated from the top to the bottom on the front side by the rotation of the rotating shaft having an axis extending in parallel with the transverse sealer, and the bag package is discharged from the front side of the turret below. To the front of the vertical bag making filling and packaging machine.

  In the bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention, the drive of the turret is intermittently rotated, and when the turret stops at the intermittent rotation, one of the storage pockets is at the receiving position. The bag packaging body manufactured by stopping sequentially is received, and when the turret stops at the intermittent rotation, the bag packaging body stored in another storage pocket stopped at the discharge position is discharged. Can be made.

The bag packaging body inverting device of the vertical bag making filling and packaging machine according to the present invention is characterized in that a speed-controllable motor is used as a driving source for rotating the turret.
The speed-controllable motor can be a servo motor.

  The bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention is capable of controlling the speed by judging the start condition of the reversing operation, the position state of the turret and the operating state of the vertical bag making filling and packaging machine. By sending a command to the motor, a control unit can be provided that performs control related to the rotation operation of the turret.

  In the bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention, display / setting means such as a touch panel display is connected to the control unit, so that data necessary for the operation of the turret is set from the outside. It is also possible to display data on the operating state of the turret.

  In the bag packaging body reversing device of the vertical bag making filling and packaging machine according to the present invention, the control unit of the vertical bag making filling and packaging machine can control the rotation direction and rotation speed of the turret.

  The bag packaging body inverting device of the vertical bag making filling and packaging machine according to the present invention is generated in a conventional inverting device using an air cylinder as a drive source by rotating a turret having a plurality of storage pockets in the same direction by a motor. This eliminates the wasted time due to the return operation of the air cylinder, and makes it possible to cope with the high-speed operation of the vertical bag filling and packaging machine.

It is the schematic which shows one Example of the bag packaging body inversion apparatus of the vertical bag making filling packaging machine by this invention. It is operation | movement schematic of the bag packaging body inversion apparatus shown in FIG. It is a perspective view of the bag packaging body inversion apparatus shown in FIG. It is a disassembled perspective view of the turret part of the bag packaging body inversion apparatus shown in FIG. It is a disassembled perspective view of the turret drive part of the bag packaging body inversion apparatus shown in FIG. It is a control block diagram of the bag packaging body inversion apparatus shown in FIG. It is the schematic which shows an example of the turret provided with the prismatic storage pocket. It is a schematic perspective view of a general vertical bag making filling and packaging machine. It is the schematic of a structure and operation | movement of a bag inversion apparatus using an air cylinder.

  With reference to the drawings, an embodiment of a bag packaging body reversing apparatus using a turret of a vertical bag making filling and packaging machine according to the present invention will be described. FIG. 1 shows a schematic diagram of a bag package reversing device using a turret of a vertical bag making filling and packaging machine. The turret 40 includes four storage pockets 42a to 42d (generically denoted by reference numeral 42) that are divided in the circumferential direction by partition plates 46a to 46d around a shaft 52 that is a rotatable rotating shaft. The turret 40 is driven by a motor 41 capable of speed control. Hereinafter, with reference to FIGS. 2-5, the installation position and structure of a bag packaging body inversion apparatus, and operation | movement are demonstrated.

  First, the installation position and operation of the bag packaging body reversing device (hereinafter abbreviated as “reversing device” for simplicity) will be described. As shown in FIGS. 2 and 3, the reversing device is installed immediately below the horizontal sealers 24a and 24b of the vertical bag making and filling machine, and rotates in the front direction when the horizontal sealers 24a and 24b are viewed in front. A turret 40 is provided. In the state shown in the drawing, among the plurality of storage pockets 42 provided in the turret 40, one storage pocket 42a stands by at a position where the falling bag packaging body 7 can be received and stored.

  The position where the turret 40 stands by is determined by the stop position detection sensor 44 detecting the detection portion of the stop position detection plate 43 indicating the position of the storage pocket 42 and grasping the control unit of the reversing device. The stop position detection plate 43 is attached to one end of the shaft 52 and rotates together with the shaft 52. Further, as shown in the right side view of FIG. 1 and FIGS. 3 and 4, the stop position detection plate 43 has the same number of storage pockets 42 as the storage pockets 42a to 42d. Cuts 43a to 43d are formed as detection portions. The stop position detection sensor 44 is fixedly provided on the apparatus base in the vicinity of the stop position detection plate 43, and optically or magnetically detects the detection portion of the stop position detection plate 43. A product detection sensor 45 is disposed in the vicinity of the turret 40 and detects that the bag package 7 has fallen into the storage pocket 42.

  When the vertical bag making filling and packaging machine starts operation and the product detection sensor 45 confirms that the bag package 7 has fallen into the storage pocket 42a, the control unit rotates the motor 41, and the turret 40 is discharged from the discharge device 30. Start rotating in the direction of. When the turret 40 rotates, the stop position detection plate 43 also rotates and the detection portion (cut) moves, so that the stop position detection sensor 44 once misses. When the next storage pocket 42d comes to a position where the falling bag packaging body 7 can be stored, the next detection portion of the stop position detection plate 43 also moves to a detection position where the stop position detection sensor 44 can detect. The position detection sensor 44 detects the detected portion and outputs it again. At this timing, the control unit stops the rotation of the motor 41. Since the partition plate 46a constituting the storage pocket 42a is inclined, the bag wrapping body 7 stored in the storage pocket 42a slides downward with the vertical seal on the lower surface and transfers to the carry-out device 30. .

  Next, the driving mechanism of the reversing device will be described with reference to FIGS. As shown in FIG. 4, the turret 40 includes a shaft 52 that is a central axis of rotation, four partition plates 46a, 46b, 46c, and 46d, and both end plates 49a and 49b. The turret 40 and the speed-controllable motor 41 that drives the turret 40 are connected by a transmission mechanism (FIG. 1) that includes pulleys 47 a and 47 b and a driving belt 48. The turret 40 is installed by reversing device mounting brackets 50a and 50b, and the motor 41 is installed by a reversing device driving motor mounting bracket 51 at a position directly below the horizontal sealers 24a and 24b on the lower base of the vertical bag making and packaging machine. The Below, the detailed structure of the turret 40, the connection with the motor 41 capable of speed control, and the assembly order will be described.

  As shown in FIG. 4, both end portions of the shaft 52 pass through both end plates 49a, 49b, respectively, and four partition plates 46a, 46b, 46c, 46d are connected to both end plates 49a, 49b. The assembly of the turret 40 is completed by fixing 49b to the shaft 52. Accordingly, the storage pocket 42a is between the partition plates 46a and 46d, the storage pocket 42b is between the partition plates 46a and 46b, the storage pocket 42c is between the partition plates 46b and 46c, and the partition plates 46c and 46d are between the partition plates 46c and 46d. Storage pockets 42d are respectively formed.

  Both ends of the shaft 52 of the turret 40 are passed through the reversing device mounting brackets 50a and 50b, and are fixed so as not to prevent the rotation of the shaft 52 via ball bearings (not shown). Next, the driving pulley 47a is fixed to one end of the shaft 52, the stop position detection plate 43 is passed through the opposite end, and the detection portion is adjusted to a position that matches the position of the partition plate. The stop position detecting plate 43 is fixed to the shaft 52. In this state, the turret 40 is attached to a position directly below the horizontal sealers 24a and 24b on the lower base of the vertical bag making filling and packaging machine.

  As shown in FIG. 5, after the speed-controllable motor 41 is mounted on the reversing device drive motor mounting bracket 51, the pulley 47 b is fixed to the rotating shaft of the motor 41. In this state, after connecting the driving pulley 47a attached to the turret 40 and the pulley 47b attached to the motor 41 on the lower base of the vertical bag making filling and packaging machine with the driving belt 48, the reversing device The drive motor mounting bracket 51 is fixed. Finally, the stop position detection sensor 44 and the product detection sensor 45 are attached to adjust the position, and the motor and sensor are electrically wired. Thereby, the reversing device is completed.

  Finally, the configuration of the control unit in this embodiment shown in FIG. 6 will be described. In this embodiment, a DC brushless motor is used as a motor capable of driving speed control, a dedicated programmable logic controller (PLC) is mounted for control, and control signals and status signals are mutually transmitted with the vertical bag filling and packaging machine. It is only to exchange. The operating speed is set manually by connecting a speed command variable resistor (speed volume) to the motor drive amplifier. From the PLC, only signals for starting, stopping and rotating directions are sent as commands.

  The PLC sends a start command to the motor drive amplifier when the detection signal from the product detection sensor 45 is input while the vertical bag filling and packaging machine is in operation, and the stop position detection sensor 44 while the DC brushless motor is rotating. Sends a stop command to the motor drive amplifier in response to the input of the signal for detecting the detection portion of the stop position detection plate 43. In addition, a return-to-origin operation is required to move to a position where the bag packaging body 7 in which the storage pocket of the turret 40 falls once after the power is turned on can be stored. It is assumed that the time when the origin return operation is performed is grasped by the status signal of the packaging machine and performed at the same time.

  As described above, the embodiment has been described with the simplest example in which the space in the turret is divided in the circumferential direction by a plurality of partition plates arranged radially around the rotatable central axis, and the storage pocket is configured. As shown in FIG. 7, in order to correspond to a square package such as a set bag, the storage pockets 54 a to 54 f are radially arranged with a plurality of prismatic boxes having a plurality of upper openings around the central axis. It is also possible. In addition, the number of storage pockets is increased, the motor is a servo motor, the display / setting means such as a touch panel is provided on the PLC, the control logic is added to the control unit of the vertical bag making filling and packaging machine, and it is fully synchronized with the packaging machine. It goes without saying that embodiments such as controlling are possible. Moreover, although the turret 40 was stopped for every rotation position which accommodates a bag packaging body, it is also possible to cope with it only by decelerating without stopping.

Fw Band-shaped packaging material Ft Packaging material formed into a cylindrical shape 3 Horizontal seal 4 Vertical seal 6 Bag making machine 7 Bag packaging body 22 Bag making filling cylinder 24a, 24b Horizontal sealer 26a, 26b Paper feed belt 27 Guide chute 28a, 28b Vertical Sealer 30 Unloading device 31 Pushing plate 32 Stopper plate 33 Pushing opening 34 Stopper opening 35 Pushing cylinder 36 Stopper cylinder 40 Turret 41 Speed-controllable motor 42a, 42b, 42c, 42d Storage pocket 43 Stop position detection Plate 44 Stop position detection sensor 45 Product detection sensor 46a, 46b, 46c, 46d Partition plate 47a, 47b Pulley 48 Drive belt 49a, 49b End plate 50a, 50b Reverse device mounting bracket 51 Reverse device drive motor mounting bracket 52 Shaft 53 Motor drive Amp

Claims (10)

A longitudinal seal is applied by sticking both ends in the width direction of the curved strip-shaped packaging material, and a lateral seal is applied by a lateral sealer in a direction across the cylindrical packaging material into which the packaged product is charged or filled. In a vertical bag making and filling machine that manufactures bag packaging by cutting in the middle,
The turret is provided below the horizontal sealer and provided with a plurality of storage pockets arranged in the circumferential direction around the rotation shaft,
The turret is capable of receiving and storing the bag package in a storage pocket at a receiving position, and is rotated in a direction in which the vertical seal side of the bag package stored in the storage pocket faces. When the storage pocket reaches the receiving position, the subsequent bag package is repeatedly stored in the subsequent storage pocket, and the vertical seal is placed on the bag package stored in the storage pocket. Discharging underneath,
A bag packaging body reversing device for a vertical bag making filling and packaging machine.   2. The vertical bag making according to claim 1, wherein the storage pocket is formed by dividing a space in the turret by disposing a plurality of partition plates radially around the rotating shaft. 3. Bag packaging body reversing device for filling and packaging machines.   2. The vertical bag making and filling according to claim 1, wherein the storage pocket is formed by radially arranging a plurality of prismatic boxes whose outer sides in the radial direction are opened around the rotation shaft. Bag packaging body reversing device for packaging machines.   The vertical seal is performed on the front side of the vertical bag making filling and packaging machine, the horizontal sealer operates in the front-rear direction of the vertical bag making filling and packaging machine, and the turret extends in parallel with the horizontal sealer. By rotating the rotary shaft having an axis, the bag packaging body is rotated from top to bottom on the front side, and the bag packaging body is discharged from the discharge position below the front surface of the turret to the front of the vertical bag making filling and packaging machine. The bag packaging body inversion apparatus of the vertical bag making filling and packaging machine according to any one of claims 1 to 3.   The drive of the turret is intermittent rotation, and when the turret stops at the intermittent rotation, one of the storage pockets receives the bag packaging body manufactured by sequentially stopping at the receiving position, and the turret is The bag packaging body stored in another storage pocket stopped at the discharge position when being stopped by the intermittent rotation is discharged. The bag packaging body inversion apparatus of the vertical bag making filling and packaging machine described.   The bag packaging body reversing device for a vertical bag making filling and packaging machine according to any one of claims 1 to 5, wherein a motor capable of speed control is used as a drive source for rotating the turret.   The bag packaging body reversing device for a vertical bag making filling and packaging machine according to claim 6, wherein the speed controllable motor is a servo motor.   Control for judging the rotation condition of the turret by judging the start condition of the reversal operation, the position state of the turret and the operating state of the vertical bag making filling and packaging machine, and sending a command to the motor capable of speed control The bag packaging body reversing device for a vertical bag making filling and packaging machine according to claim 6 or 7, further comprising a section.   The control unit is connected to display / setting means capable of externally setting the setting data necessary for the rotating operation of the turret and capable of displaying the state data of the rotating operation of the turret. The bag packaging body inversion device of the vertical bag making filling and packaging machine according to claim 8.   The vertical bag making according to claim 8 or 9, wherein control relating to the rotation operation such as rotation, stop, rotation direction, and rotation speed of the turret is performed from a control unit of the vertical bag making filling and packaging machine. Bag packaging body reversing device for filling and packaging machines.

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