JP2007091306A - Rotary vertical filling machine and two-rotor vertical vacuum packaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-rotor vertical vacuum packaging device which fills objective contents into a bag, subjects the resultant bag into vacuum treatment, and seals a bag opening, to thereby obtain a bagged product, wherein the packaging device makes the product flatly shaped without biasing the contents to a bottom of the bag. <P>SOLUTION: The two-rotor vertical packaging device is formed of a filling machine 21 and a vacuum packaging machine 22 which are both intermittently rotated, and a delivery device 23. The two-rotor vertical packaging device is further comprised of a shape retaining device 30 which retains the shape of the bag W transported from a filling step location (stopping location 4) to a deaeration step location (stopping location 5) of the filling machine 21. The shape retaining device 30 is formed of a pair of inhibiting plates 30a, 30b which are accessible to/separable from each other, and function to inhibit the bag W filled with the contents from expanding when accessed to each other. The inhibiting plates 30a, 30b are reciprocatively movable between the filling step location and the deaeration step location along an arched passage along a bag transportation passage, and follow movement of a pair of grippers 24, 24 which are intermittently operated from the filling step location to the deaeration step location. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rotary vertical filling machine that manufactures a filled bag in a flat shape. The present invention also relates to a two-rotor vertical vacuum packaging device that is manufactured in a state where a filled bag is flatly shaped, and further vacuum-treats and seals the bag mouth.

The following Patent Document 1 describes a two-rotor vertical vacuum packaging apparatus including a rotary vertical filling machine, a rotary vertical vacuum packaging machine, and a bag delivery device installed between the two.
Here, in the rotary vertical filling machine, a plurality of pairs of grippers that can approach and separate from each other intermittently rotate along a horizontal circular path, and each pair of grippers grips and conveys both sides of the bag, During one rotation, the bag is filled with the filling material, and the bag is flattened by the shaping device. The shaping device includes press shaping means for shaping the bag flat by pressing both sides of the bag filled with the filling material, and a degassing mechanism that is communicated with the vacuum pump and inserted into the bag through the bag opening. A nozzle is provided to simultaneously press and shape the bag and deaerate the bag. In addition, when filling an object to be filled, a pair of sandwiching plates are installed on both sides of the bag to prevent the bag from spreading.
A rotary type vertical vacuum packaging machine rotates a plurality of vertically openable / closable vacuum chambers each having a gripper for gripping a bag filled with a filling object along a horizontal circular path. During rotation, the bag is vacuumed and the bag mouth is sealed. The vertical vacuum chamber has shaping means for holding the both sides of the bag and shaping it in a flat state or maintaining the shaped state.
The delivery device includes a gripper that grips the upper edge of the bag over the entire width, and receives the shaped bag gripped by the gripper of the filling machine with the gripper and delivers it to the gripper of the vacuum packaging machine.

According to this two-rotor type vertical vacuum packaging apparatus, the filling material is filled so as not to be shifted to the bottom of the bag in the filling process, the bag is press-formed flatly again in the shaping / deaeration process, and the gripper pair Pull away the bag mouth in the width direction, deaerate the inside of the bag with the bag mouth closed, prevent the filling material from descending to the bottom of the bag, and maintain a flat shaped state, The bag can be subjected to vacuum processing, and a vacuum packaged product can be obtained in which an object to be filled does not shift to the bag bottom.
However, depending on the type of the filling material, the filling material in the bag falls to the bottom of the bag while the bag is moved from the filling process position to the shaping / deaeration process position. Once the filling is lowered to the bottom of the bag and the offset in the bag becomes large, depending on the type of the filling, it is not easy to press the shaping means to correct the offset of the filling. For example, fish If it is like an egg, the filling will be crushed and become defective. In addition, in the case of a bag in which the offset of the object to be filled cannot be corrected even if it is pressed by the press shaping means on the filling machine side, it is almost impossible to correct the offset by the shaping means on the subsequent vacuum packaging apparatus side and make it flat. Is possible.

In the above two-rotor type vertical vacuum packaging apparatus, filling and shaping (including deaeration) are performed on the filling machine side, and the bag mouth is not sealed. However, temporary sealing (sealing with leaving a part of the bag mouth) may be performed in order to limit the inflow of air into the bag. Then, the shaped bag is transferred to a rotary type vertical vacuum packaging machine, where vacuum processing and sealing of the bag mouth (main seal) are performed.
On the other hand, in the case of an article to be packaged that does not require a very high level of vacuum treatment, the above-described rotary type vertical filling machine can be used for filling and shaping the bag (including degassing), and further sealing the bag mouth (temporary). May not be sealed), and the packaging process is completed only by this filling machine. Also in this case, as described above, depending on the type of the filling material, the filling material in the bag descends to the bottom of the bag while the bag is moved from the filling process position to the shaping / deaeration process position. There arises a problem that the press shaping means cannot correct the offset of the filling material.

  On the other hand, in Patent Document 2 below, a shaping plate and a shaping bar are installed in a moving unit that moves the filling bag, and the bag containing the object to be filled is pressed from both sides with the shaping plate to shape the filling bag with the shaping bar. An automatic wrapping apparatus is described in which the bag is moved to the next sealing step position while the upper part of the bag is pressed and pressed by the shaping plate, and the bag mouth is sealed there. If the shaping plate is moved together with the shaping bar that holds the bag as in this device, the filling material is prevented from descending to the bag bottom while the bag is moved. However, since the pressing by the shaping plate is performed on the bag after filling, that is, the bag in which the filling material is offset from the bottom of the bag, depending on the type of filling material, it may be necessary to correct the offset and flatten the bag. It is not easy, and if you do not force it, the filling will be crushed and become defective.

JP 2001-39408 A Japanese Patent Laid-Open No. 10-72002

  The present invention has been made to solve such problems of the prior art, and in a two-rotor type vertical vacuum packaging device, a bag in which the shaped state is maintained is vacuumed regardless of the type of the filling material. To be able to produce flat vacuum-packed products where the filling is not offset to the bottom of the bag for processing, and in the rotary vertical filling machine, the shaping state is maintained regardless of the type of filling An object of the present invention is to send the formed bag to a sealing process position so that a flat deaerated package product in which the filling material is not offset to the bag bottom can be manufactured.

In the rotary type vertical filling machine according to the present invention, a plurality of gripper pairs that can approach and separate from each other intermittently rotate along a horizontal circular path, and each gripper pair grips and conveys both sides of the bag, The bag is filled with the object to be filled during one rotation of the bag, and the bag is deaerated by a deaeration nozzle that can be moved up and down. A shaping maintenance device is installed to maintain the shaping state of the bag that is transported from the filling process position to the deaeration process position, and the shaping maintenance devices are close to and away from each other. A pair of restricting plates for restricting the expansion of the bag containing the object to be filled, and the pair of restricting plates are arc-shaped along the bag transport path between the filling process position and the deaeration process position. It can move back and forth along the path, and the gripper pair can be removed from the filling process position. Characterized in that to follow movement when intermittently rotated in steps position. After the deaeration process, a bag mouth temporary sealing process may be provided.
The timing of approaching / separating and reciprocating movement of the pair of restricting plates is determined by approaching each other before or during the filling process position before the material to be filled is put into the bag to restrict the expansion of the bag. Maintaining a close state while following the air process position, the deaeration nozzle is inserted into the bag at the deaeration position, and the gripper pair holding the bag is separated from each other to close the bag mouth of the bag At the same time or thereafter, and set to move back to the filling process position.

  The two-rotor type vertical vacuum packaging apparatus according to the present invention is shaped into a flat state by pressing the rotary type vertical filling machine, a gripper for holding a bag filled with an object to be filled, and both sides of the bag, or a shaped state. A plurality of vertical vacuum chambers with lids that can be opened and closed with shaping means for maintaining the rotation are rotated along a horizontal circular trajectory, and the bag is vacuum-treated and the bag mouth is sealed while it rotates once. A rotary type vertical vacuum packaging machine and a gripper for gripping a bag, and the gripper of the rotary type vertical filling machine receives a shaped and degassed bag with this gripper, and the rotary type vertical vacuum packaging It consists of a delivery device that delivers to the machine gripper.

In another rotary type vertical filling machine according to the present invention, a plurality of gripper pairs that can approach and separate from each other rotate intermittently along a horizontal circular track, and each gripper pair grips and conveys both sides of the bag. The filling material is filled into the bag during one rotation, the bag is evacuated by a degassing nozzle that can be raised and lowered, and then the bag mouth is sealed. The filling process position for filling and the deaeration process position for deaeration in the bag are adjacent to each other, and a shaping maintenance device is installed to maintain the shaping state of the bag conveyed from the filling process position to the deaeration process position. The apparatus is provided with a pair of restricting plates that are capable of approaching / separating each other and restricting the expansion of the bag containing the object to be filled, and the pair of restricting plates are located between the filling process position and the deaeration process position. It can move back and forth along an arcuate path along the bag transport path. Over pair is characterized in that to follow movement when intermittently rotating the degassing step position from the filling process position. The packaging bag manufactured by this filling machine is a product in which the bag mouth is sealed.
The timing of the approaching / separating and reciprocating movement of the pair of regulation plates may be set in the same manner as the rotary type vertical filling machine (the one not performing the main sealing of the bag mouth) described above.

  According to the present invention, in a two-rotor type vertical vacuum packaging device, regardless of the type of the filling material, the shaped bag is sent to the deaeration process position, and further subjected to vacuum treatment to be filled. Can produce flat vacuum packaged products that are not offset by the bag bottom. In addition, in a rotary vertical filling machine, regardless of the type of filling material, the shaped bag is sent to the deaeration process position, then to the sealing process position, and the filling material is not flat against the bag bottom. Simple degassed packaging products. For example, powders, dried beans, chestnuts and other granular materials, or a large number of solid substances (boiled beans, boiled kelp, fish eggs, etc.) containing a small amount of liquid can be filled in the bag. It becomes possible.

Hereinafter, the present invention will be described more specifically with reference to FIGS. The two-rotor type vertical vacuum packaging device shown in FIG. 1 is a two-rotor type vertical vacuum packaging device described in Patent Document 1 in that a shaping maintenance device is installed instead of the expansion regulating device and the press molding device. It is different from the device, but is otherwise substantially the same.
In this two-rotor vertical vacuum packaging apparatus, a rotary vertical filling machine 21 (hereinafter abbreviated as filling machine 21) and a rotary vertical vacuum packaging machine 22 (hereinafter abbreviated as vacuum packaging machine 22) are adjacent. This is an apparatus in which a bag W is filled with an object to be filled by a filling machine 21, and this is delivered to a vacuum packaging machine 22 by a delivery device 23 to perform vacuum processing and seal the bag mouth.

The filling machine 21 is installed at equal intervals around a table T _{21 in which} a plurality of pairs of grippers 24 that can approach and leave each other rotate intermittently, and at each stop position (numbers 1 to 8 on the table indicate stop positions). those steps apparatus executing (following (1) to (8)) and is placed, while the table T ₂₁ makes one rotation, the filling with product, the process of shaping and the like are sequentially performed.
(1) The bag W is supplied from the bag storage unit 25 to the gripper 24 and gripped by a bag supply device (not shown).
(2) The date of manufacture is marked on the surface of the bag W by the stamping machine 26.
(3) A vacuum suction device and an opening holding device are installed, the bag mouth is opened by the vacuum suction cup 27 of the vacuum suction device, and a spatula 28 of the opening holding device is inserted into the opened bag mouth at the same time. This opening holding device reciprocates between the stop position 3 and the stop position 4 as described in, for example, Japanese Patent Laid-Open No. 11-49113.

(4) The hopper 29 is inserted into the bag mouth, and the bag is filled with an object to be filled. At this time, spatula 28 of the opening holding device is rotated together with the table T ₂₁ stops at this position, after the hopper 29 has been inserted into the bag mouth, spatula 28 is away from the bag mouth, the table T ₂₁ is the next position Before starting to rotate, the motor rotates in the opposite direction and returns to the original stop position 3. Further, at this stop position 4 (filling process position), a shaping maintenance device 30 which will be described in detail later is installed, and restricting plates 30a and 30b (only the restricting plate 30a is shown) are arranged on both surfaces of the bag W to be filled. The bag W is close to a predetermined distance between the bag W before being charged, and the filling width of the bag W is restricted to a predetermined width while the filling material is filled, and the filling material is contained in the bag W. Suppresses the occurrence of misalignment. That is, the bag after filling is in a state of being shaped flat. The hopper 29 rises after filling the material to be filled.
Subsequently, when the grippers 24, 24 table T ₂₁ grips the bag W after the filling is rotated to move, the regulating plate 30a, 30b along an arcuate path along the conveying path of the bags W, It moves following (together) to the next stop position 5 (deaeration process position). Regulating plate 30a, by 30b is moved together with the bag W while the expanded width restricting the bag W, during the intermittent rotation of the table T _21, it is possible to maintain the shaping state of the bag W.

(5) Air in the bag is sucked. At this position, a flat deaeration nozzle 31 which can communicate with the vacuum pump and can be moved up and down is installed. When the bag W stops at this position, the deaeration nozzle 31 descends and is inserted into the bag through the bag port. Then, the pair of grippers 24 and 24 are separated from each other, and the bag mouth is pulled and tensioned in the width direction to close the bag mouth. Subsequently, the regulating plates 30a and 30b are separated from each other and spaced apart to return to the original filling process position. The restricting plates 30a and 30b that have returned to the filling process position repeat the same operation for the next bag at the same position. On the other hand, after the bag opening of the bag W is closed, the bag is deaerated by the deaeration nozzle 31. At this time, since the bag mouth is closed and the inflow of air is restricted, even if the regulation plates 30a and 30b are spaced apart from each other and the bag surface is no longer regulated, the filling material is lowered in the bag. Since the bag is immediately evacuated, the movement is further suppressed, and the flat shaped state of the bag is maintained in the subsequent steps.

(6) The bag mouth of the bag W is temporarily sealed by the seal bar 33 of the temporary sealing device, further restricting the inflow of air into the bag.
(7) The upper portion of the bag W is clamped by the gripper 23a of the delivery device 23 and delivered to the vacuum packaging machine 22 side. By gripping the upper part of the bag W with the gripper 23a over the entire width, air does not flow into the bag during this delivery.
(8) Idle process.

Vacuum packaging machine 22 includes a vacuum table T ₂₂ intermittently rotated in the arrow direction while repeatedly moving and stopping, the vacuum chamber 34 of the main body 34a and openable lid 34b around the vacuum table T ₂₂ is at regular intervals As shown in FIG. 2, each of the vacuum chambers 34 is provided with a plurality of grippers 35 for gripping the bag W, a sealing device 36 for sealing the bag mouth of the bag W, and a bag W filled with the filling. A shaping plate 37 for holding one side is provided. The shaping plate 37 has a role of pressing the both surfaces of the bag W in cooperation with the inner surface of the lid 34b, shaping the bag W into a flat state, or maintaining the shaped state.

At each stop position (numbers 1 to 12 on the table indicate the stop position), the process for vacuum packaging is executed as follows, for example.
First, the filled bag W is delivered and gripped by the gripper 35 in the vacuum chamber 34 by the gripper 23a of the delivery device 23 (stop position 1), and the lid 34b of the vacuum chamber 34 is closed (˜stop position 2). -Stop position 3), vacuum is sequentially drawn to a predetermined pressure (stop positions 4-6), and the entire bag mouth of the bag W is heat-sealed by the sealing device 36 (stop position 7) and subsequently cooled (stop position) 8 to 9), the inside of the vacuum chamber 34 is returned to the atmospheric pressure, and at the same time the lid 34b is opened (to the stop position 10), the bag W sealed last is opened from the gripper 35, and the conveyor 38 takes it to the next process. It is discharged (stop position 11). The stop position 12 is an idle process.

  In the above example, the timing at which the pair of regulating plates 30a and 30b approach to a predetermined distance at the filling process position of the filling machine 21 is set before the filling material is put into the bag. It can also be approached on the way (preferably as early as possible). Further, when the pair of regulating plates 30a and 30b are separated from each other at the deaeration process position, the deaeration nozzle 31 is inserted into the bag at the deaeration process position, and the pair of grippers 24 and 24 holding the bag are separated from each other. However, the gripper pair 24 and 25 can be separated from each other at the same time.

Here, as a specific form, the shaping maintenance device 30 reciprocates along an arc-shaped rail installed along a conveyance path of the bag W at a predetermined position on the machine base of the filling machine 21 and the rail. A moving base, the regulating plates 30a and 30b installed on the moving base, a reciprocating drive means for reciprocating the moving base between the filling process position and the deaeration process position along the rail, and the approach of the regulating plate A regulation plate driving means for performing separation, and an interval adjustment means for adjusting an interval when the regulation plate approaches and separates. The moving base has, on the lower surface thereof, a guide roller that rolls along the rail and moves the moving base along a predetermined path, and a support wheel that runs on the machine base.
The shaping maintenance device 30 will be described with reference to FIGS.

Shaping maintenance device 30, on a base plate 42 fixed on the machine base 41 of the filling machine 21 is arranged below the table T ₂₁ as a whole. Shaping maintenance device 30 along the conveying path of the bags W curved in an arc shape (having the same rotation center as the rotation center of the table T ₂₁₎ connecting the filling process position and degassing step position, fixed on the base plate 42 The rail 43, the four support wheels 44 that run on the base plate 42 on the bottom surface, and the three guide rollers 45 that contact the side surfaces of the rail 43 at three points are installed. A reciprocating drive means for reciprocating between a filling process position and a deaeration process position along a pair of restriction plates 30a and 30b and a pair of restriction plates 30a and 30b disposed so as to sandwich the bag W on the movement base 46. The driving means for approaching / separating includes an air cylinder 47, a distance adjusting means for adjusting the distance between the regulating plates 30a and 30b, and the like.
The reciprocating drive means includes a drive source (not shown) and a drive rod 49 having one end connected to a connecting portion 47 of the moving base 46 via a joint 48 and the other end connected to the drive source.

  On the moving base 46, mounting stands 51 and 52 for the restriction plates 30a and 30b are installed. The mounting stand 51 includes a bottom plate 53 that comes into surface contact with the moving base 46 and a substantially H-shaped support post 54 that is fixed on the bottom plate 53. The mounting stand 52 comes into surface contact with the moving base 46. 55 (a substantially quadrangular hole 55a is formed in the center) and a substantially columnar post portion 56 that is fixed on the bottom plate 55 in a plan view. Guide blocks 57 and 58 formed with inward grooves 57a and 58a are fixed to the left and right of the moving base 46, and the left and right ends of the bottom plates 53 and 55 are slidably fitted into the grooves 57a and 58a. (See FIG. 6).

The air cylinder 47 is fixed to the central plate portion 54a of the column portion 54 of the mounting stand 51, the tip of the piston rod 59 is fixed to the back surface of the regulating plate 30a, and the guide shaft 61 slides in the horizontal direction. A hole that freely passes through is formed, and the tip of the guide shaft 61 is fixed to the back surface of the restriction plate 30a. On the other hand, the back surface of the restriction plate 30b is fixed to the U-shaped opening of the column portion 56 of the mounting stand 52.
When the air cylinder 47 expands and contracts, the restriction plates 30a and 30b approach (separate from each other) or move away from each other, and when the air cylinder 47 approaches, the expansion of the bag W containing the filling material is restricted.

Further, the central plate portion 54a of the column portion 54 of the mounting stand 51 is formed with a female screw hole, and a first adjustment shaft 62 in which a male screw (right screw) is formed is screwed into the first adjustment shaft. A handle 63 is fixed to the rear end of 62, and the vicinity of the tip has a small diameter, which is supported by a bearing 64 fixed on the moving base 46. On the other hand, in the central plate portion 55a of the column portion 56 of the mounting stand 52, a female screw hole is formed, and a second adjustment shaft 65 formed with a male screw (left screw) is screwed into the second adjustment shaft 65. The vicinity of the tip of the shaft has a small diameter, and is supported by a bearing 66 fixed on the moving base 46. The tip of the first adjustment shaft 62 and the tip of the second adjustment shaft 65 are connected by a joint portion 67.
When the handle 63 is rotated, the first adjustment shaft 62 and the second adjustment shaft 65 are rotated simultaneously, and both mounting stands 51 and 52 are moved in the axial directions of the first adjustment shaft 62 and the second adjustment shaft 65 in opposite directions. (The bottom plates 53 and 55 are guided by the guide blocks 57 and 58), and the interval between the regulation plates 30a and 30b can be adjusted. As described above, the mounting stands 51 and 52, the guide blocks 57 and 58, the first adjustment shaft 62, the second adjustment shaft 65, the handle, and the like constitute the interval adjusting means.

  In the shaping maintaining device 30, the moving base 46 is supported by the support wheel 44 that travels on the base plate 42 as the drive rod 49 advances and retreats, and the forward movement (filling) is performed between the filling process position and the deaeration process position. (Moving following the gripper pair 24, 24 moving from the process position toward the deaeration process position) or returning. At that time, the moving base 46 is guided by the rail 43 and the three guide rollers 45 and moves along the arcuate path, whereby the restricting plates 30a and 30b move between the filling process position and the deaeration process position. It moves along the arcuate path along the movement path.

  As mentioned above, as an embodiment of the present invention, the example in which the shaping maintenance device 30 is applied to the rotary type vertical filling machine forming a part of the two-rotor type vertical vacuum packaging device has been described. The shaping maintenance apparatus 30 can also be applied to the rotary vertical filling machine to be performed. In the rotary type vertical filling machine in that case, after the deaeration process, this sealing process is performed instead of the temporary sealing process.

It is a conceptual diagram of the 2-rotor type vertical vacuum packaging apparatus according to the present invention. It is sectional drawing of the vacuum chamber of a rotary type vertical vacuum packaging machine. It is a top view of the shaping maintenance apparatus which concerns on this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is C arrow line view of FIG.

Explanation of symbols

21 Rotary Vertical Filling Machine 22 Rotary Vertical Vacuum Packaging Machine 23 Delivery Device 24 Gripper 30 Shaping Maintenance Device
30a, 30b Restriction plate 43 Arc-shaped rail 44 Support wheel 45 Guide roller 46 Movement base 47 Air cylinder 49 Drive rod 51, 52 Mounting stand 53, 55 Bottom plate 57, 58 Guide block 62, 65 Adjustment shaft

Claims (5)

A plurality of gripper pairs that can approach and separate from each other rotate intermittently along a horizontal circular path, and each gripper pair grips and conveys both sides of the bag, and the object to be filled into the bag while it rotates once In a rotary type vertical filling machine that degass the inside of the bag by a degassing nozzle that can be moved up and down, a filling process position for filling an object to be filled and a deaeration process position for degassing the bag Is installed, and a shaping maintenance device is installed to maintain the shaping state of the bag conveyed from the filling process position to the deaeration process position. A pair of restricting plates for restricting the expansion of the bag, and the pair of restricting plates can reciprocate between the filling process position and the deaeration process position along an arcuate path along the bag transport path. The gripper pair moves from the filling process position to the degassing process position. Rotary type vertical filling machine, characterized in that to follow movement when rotating. The timing of approaching / separating and reciprocating movement of the pair of restricting plates is determined by approaching each other before or during the filling process position before the material to be filled is put into the bag to restrict the expansion of the bag. Maintaining a close state while following the air process position, the deaeration nozzle is inserted into the bag at the deaeration position, and the gripper pair holding the bag is separated from each other to close the bag mouth of the bag The rotary type vertical filling machine according to claim 1, wherein the rotary type vertical filling machine is set so as to be separated from each other at the same time or thereafter and then to return to the filling process position. A rotary type vertical filling machine according to claim 1, a gripper for gripping a bag filled with an object to be filled, and a shaping means for holding the both sides of the bag into a flat state or maintaining a shaped state. Rotary vertical vacuum packaging that rotates a plurality of vertical vacuum chambers with openable lids along a horizontal circular trajectory, vacuums the bag and seals the bag mouth while it rotates once And a gripper for gripping the bag, and a delivery device for receiving the deaerated bag gripped by the gripper of the rotary type vertical filling machine with this gripper and delivering it to the gripper of the rotary type vertical vacuum packaging machine A two-rotor vertical vacuum packaging device comprising: A plurality of gripper pairs that can approach and separate from each other rotate intermittently along a horizontal circular path, and each gripper pair grips and conveys both sides of the bag, and the object to be filled into the bag while it rotates once In a rotary type vertical filling machine in which the inside of the bag is deaerated by a deaeration nozzle that can be moved up and down, and then the bag mouth is sealed, the filling process position for filling the filling material and the inside of the bag A degassing process position for performing deaeration is adjacent to each other, and a shaping maintenance device is installed to maintain the shaping state of the bag conveyed from the filling process position to the deaeration process position. The shaping maintenance devices can approach and separate from each other. A pair of restricting plates for restricting the expansion of the bag containing the object to be filled when approached are provided, and the pair of restricting plates are arcuate along the bag transport path between the filling process position and the deaeration process position. Can be reciprocated along the path of the Rotary type vertical filling machine, characterized in that to follow movement when intermittently rotating the deaeration step position from. The timing of approaching / separating and reciprocating movement of the pair of restricting plates is determined by approaching each other before or during the filling process position before the material to be filled is put into the bag to restrict the expansion of the bag. Maintaining a close state while following the air process position, the deaeration nozzle is inserted into the bag at the deaeration position, and the gripper pair holding the bag is separated from each other to close the bag mouth of the bag 5. The rotary type vertical filling machine according to claim 4, wherein the rotary type vertical filling machine is set so as to be separated from each other at the same time or thereafter and then to return to the filling process position.

Images