JP2019189249A - Vertical bag-making, filling and packaging - Google Patents

Abstract

To provide a vertical bag making, filling and packaging machine improved in filling efficiency of a product into a bag by forming slack to a cylindrical packaging material and facilitating dropping of the product to a bag bottom, capable of providing a stable bag package of a preferable appearance, and realizing high speed packaging of the product.SOLUTION: When a packaging material feeding device 55, after a first feeding (1) of a part of the vertical length of a bag in the vertical direction of a strip packaging material Ft, feeds a second feeding (3) of vertical length of a residual part of the bag, a horizontal seal device 54 holds the cylindrical packaging material Ft and applies horizontal sealing and is immovable in the vertical direction. A vertical seal device 52 holds both side edge parts fe, fe of the packaging material and applies vertical sealing, and moves in the vertical direction synchronously with the second feeding. The cylindrical packaging material Ft upstream the horizontal seal device 54 is formed with slack equal to the second feeding amount, and the slack assists dropping of the product S to a bottom of the bag B and makes a bag package Bp into a stable and preferable form.SELECTED DRAWING: Figure 3

Description

  This invention forms a belt-shaped packaging material into a cylindrical packaging material by applying a vertical seal to the belt-shaped packaging material, and applies a horizontal seal to the formed cylindrical packaging material to form a bag formed in advance. The present invention relates to a vertical bag making and filling package that manufactures a bag package containing a product and forms a succeeding bag, and in particular, a vertical bag making and filling that can form a slack in the lower part of the bag. The present invention relates to a filling packaging method and a vertical bag making filling packaging machine.

  Conventionally, as a bag making filling and packaging machine, a vertical bag making filling and packaging machine as schematically shown in FIG. In the vertical bag making and filling machine 50, the belt-shaped packaging material Fw is bent into a substantially cylindrical shape by the former 51 and is moved in the vertical direction (the feeding direction of the packaging material) by the vertical sealing device 52. A seal (vertical seal portion Sc) is applied and molded into the cylindrical packaging material Ft. The cylindrical packaging material Ft is filled and charged with a product S as a package through a filling cylinder (filling cylinder) 53. The horizontal sealing device 54 applies the horizontal sealing portion Se to the cylindrical packaging material Ft in the lateral direction (direction intersecting the feeding direction of the packaging material), so that the product S is accommodated and packaged in the bag formed in advance. At the same time as the manufactured bag package Bp, the bag B into which the product S is next charged is formed. On both the left and right sides of the outer periphery of the filling cylinder 53, a pair of belt-type packaging material feeding devices 55a and 55b (generically indicated by 55) for feeding the cylindrical packaging material Ft is disposed. By repeating the molding of the cylindrical packaging material Ft by the vertical seal, the filling of the product S, the formation of the bag B, and the sealing by the lateral seal of the bag B, the bag package Bp is continuously manufactured.

  The band-shaped packaging material Fw is bent by the former 51 so that the side edge portions fe and fe are overlapped in a palm shape, and the vertical sealing device 52 applies the vertical seal portion Sc to the side edge portions fe and fe. Molded into a cylindrical packaging material Ft. The horizontal seal blocks 54a and 54b constituting the horizontal seal device 54 are members that operate to approach and separate from the cylindrical packaging material Ft, respectively, and are sandwiched in a direction crossing the cylindrical packaging material Ft when approaching. , An upper horizontal sealer that forms a bottom horizontal seal portion (a part of the horizontal seal portion Se) for the bag B, and a top horizontal seal portion of the bag package Bp (the remaining portion of the horizontal seal portion Se) And a lower horizontal sealer portion. The product S is put into the cylindrical packaging material Ft, and the bag packaging body Bp is manufactured by performing horizontal sealing in the horizontal direction by the horizontal sealing device 54.

  The horizontal sealing device 54 can incorporate a cutter device 56 that cuts the tubular packaging material Ft in a form that breaks through the tubular packaging material Ft (in this case, it is also referred to as a horizontal sealing / cutting device). The cutter device 56 includes a cutter blade 56a attached between the upper and lower horizontal sealers in one horizontal seal block 54a. The other horizontal seal block 54b includes both horizontal seal blocks 54a and 54b. A groove 56b is formed into which the cutter blade 56a enters when approaching. The horizontal seal blocks 54a and 54b come close to each other and sandwich the cylindrical packaging material to form the horizontal seal portions Se and Se. At the same time, the cutter blade 56a has a cylindrical package between the horizontal seal portions Se and Se. Cut through the material Ft. Note that a pair of tension guides 59, 59 for tensioning the cylindrical packaging material 61 outward in the diameter direction are provided at the lower end of the filling cylinder 53 so as to extend obliquely downward.

  In this type of conventional vertical bag making and filling machine, the packaging material is sent intermittently in accordance with the packaging operation. That is, while the feeding of the curved packaging material with the strip-shaped packaging material Fw and its both side edge portions fe and fe approached is stopped, the vertical sealing device 52 sandwiches the both side edge portions fe and fe and inserts the parts. In addition to the vertical seal portion Sc, the horizontal seal device 54 applies the horizontal seal portion Se to manufacture the bag package Bp. The vertical and horizontal sealing portions are performed by heat sealing. When the speed is exceeded, control is performed to ensure the sealing time by slowing the film feeding. Such a type of packaging machine that intermittently feeds packaging material has a limitation in packaging speed because it is necessary to temporarily stop the feeding of the packaging material when heat-sealing the packaging material. There is a persistent demand because of its simple structure and stable and reliable operation.

  In connection with the filling of the product into the bag formed from the cylindrical packaging material, the cylindrical packaging material is vibrated from the outside, and the elongated product such as a palm that passes through the inside of the cylindrical packaging material. There has been proposed a packaging method and apparatus in which the orientation of filling and housing of elongated products is aligned even in the bag by aligning the orientation (see Patent Document 1). In addition, in a packaging apparatus for packaging vegetables or the like in a half-folded packaging film, the packaging film is returned by a predetermined amount while the packaged item is put in, and the upper portion is held down by a holding body to bag the packaged item. It has been proposed to accommodate it without gaps (see Patent Document 2).

  If the product contained in one bag as a package is a relatively small number of individual articles, the product placed in the bag through the filling cylinder may be biased in the bag. May cause bridging. In such a case, the density of product filling in the bag cannot be obtained sufficiently. In addition, the bag package manufactured in such a manner is not satisfactorily lowered in the center of gravity, so it may be difficult to sit down, and may be easily overturned when placed vertically, so that the appearance and the display state are required to be improved. is there.

JP 2004-059037 A Japanese Patent Laid-Open No. 02-219708

  In bag packaging of products, generally, if a slack is formed in the lower part of the bag when the product is filled in the bag, the product is easily stored in the bag by sinking the bottom. It is known that the filling efficiency of the bag is improved and the form of the bag package is stable and good. Therefore, in the intermittently-actuated bag-filling packaging that performs horizontal sealing on the cylindrical packaging material that has been stopped, we devised the relationship between the packaging material feed and the vertical sealing operation to Although the feeding is intermittent feeding, there is a problem to be solved in that it is possible to increase the speed of bag packaging of the product and to obtain a bag packaging body in which the product sinks into the bag.

  An object of the present invention is to solve the above-mentioned problem, and in intermittently operated bag-filling packaging that performs horizontal sealing on a cylindrical packaging material that has been stopped, the packaging material is fed intermittently. Provided is a vertical bag-filling package that can increase the speed of product bag packaging, improve the efficiency of filling the product into the bag, and obtain a stable and well-formed bag package. That is.

In order to solve the above problems, a vertical bag making filling and packaging method according to the present invention comprises:
The belt-shaped wrapping material that is bent so as to surround the filling cylinder is fed in the vertical direction by the wrapping material feeder,
Forming the strip-shaped packaging material into a cylindrical packaging material by sandwiching both side edge portions of the strip-shaped packaging material with a vertical sealing device and applying a vertical seal to the both-side edge portions,
By applying a horizontal seal by a horizontal sealing device that sandwiches the cylindrical packaging material, the subsequent bag is sealed while sealing the bag formed in advance from the cylindrical packaging material and charged with the product through the filling cylinder. Forming,
A vertical bag making filling and packaging method for continuously producing a bag package in which the product is housed and packaged in the bag formed from the belt-shaped packaging material,
The belt-shaped packaging material is fed in the vertical direction by a double feed consisting of a first feed for sending the longitudinal length of a part of the bag and a second feed for feeding the remaining longitudinal length of the bag thereafter.
While the packaging material feeding device performs the second feeding, the horizontal sealing device performs the horizontal sealing on the cylindrical packaging material without moving in the vertical direction, and the vertical sealing device is attached to the side edge portions. The vertical movement is performed in synchronism with the second feeding by the packaging material feeding device while performing the vertical sealing.

In order to solve the above problems, a vertical bag making filling and packaging machine according to the present invention is
A wrapping material feeder that feeds in a longitudinal direction the belt-shaped wrapping material that is bent around the filling cylinder; and
A vertical sealing device for forming the band-shaped packaging material into a cylindrical packaging material by sandwiching both side edge portions of the band-shaped packaging material and applying a vertical seal to the both side edge portions;
A horizontal seal that forms a subsequent bag while sealing a bag formed in advance from the cylindrical packaging material and filled with a product through the filling cylinder by sandwiching the cylindrical packaging material and applying a horizontal seal Equipped with equipment,
A vertical bag making and filling machine for continuously producing a bag package in which the product is housed and packaged in the bag formed from the belt-shaped packaging material,
The packaging material feeding device is composed of a first-time feeding in which the belt-shaped packaging material is fed in the longitudinal direction, and a second-time feeding in which the remaining vertical length of the bag is fed thereafter. Do it twice,
While the packaging material feeding device performs the second feeding, the horizontal sealing device performs the horizontal sealing on the cylindrical packaging material without moving in the vertical direction, and the vertical sealing device is attached to the side edge portions. The vertical movement is performed in synchronism with the second feeding by the packaging material feeding device while performing the vertical sealing.

  According to this vertical bag making filling and packaging method and packaging machine, the packaging material feeding device sends the longitudinal length of a part of the bag for the longitudinal feeding of the strip-shaped packaging material, and then the remaining longitudinal length of the bag after the first feeding. When the second feeding is performed, the horizontal sealing device sandwiches the cylindrical packaging material and applies the horizontal sealing, and does not move in the vertical direction. In addition, at this time, the vertical seal device also sandwiches both side edge portions of the strip-shaped packaging material, but in synchronization with the longitudinal feeding of the strip-shaped packaging material by the packaging material feeding device, with the sandwiched state of both side edge portions, Move vertically. Therefore, when the packaging material is fed for the second time, a slack is formed in the cylindrical packaging material just above the upstream side of the horizontal sealing device that does not move in the vertical direction by the amount corresponding to the second feeding. The slack formed in the cylindrical packaging material promotes the sinking of the product to the bag bottom, and makes the form of the bag package stable and good. In addition, the time between the second feeding of the strip-shaped packaging material by the packaging material feeding device is used for the execution of the vertical sealing operation by the vertical sealing device and is also used as the vertical sealing period. Can contribute.

In this vertical bag making filling and packaging method and packaging machine, it is assumed that the horizontal sealing device performs only an opening / closing operation including a closing operation for sandwiching the tubular packaging material and an opening operation for separating the tubular packaging material sandwiched. be able to. Since the horizontal sealing device performs only the opening and closing operation without moving in the vertical direction, the structure of the horizontal sealing device and the structure of the mechanism for driving it can be simplified. It can be a simple operation of only operation.
The form of the packaging machine provided with such a horizontal sealing device is an intermittent operation type that performs horizontal sealing on the cylindrical packaging material that has been stopped, and when the horizontal sealing device sandwiches the cylindrical packaging material in a closing operation, The feed amount by the second feed of the packaging material is the feed amount for slack formation.

In this vertical bag making filling and packaging method and packaging machine, the horizontal sealing device includes a squeezing member, and combines an opening / closing operation for approaching and separating from the cylindrical packaging material and a vertical movement operation. A box motion operation is performed, and the box motion operation approaches the cylindrical packaging material in the first closing operation, performs the lowering operation in the approached state, and closes the cylindrical packaging material in the lowered position. And then moving away from the portion where the lateral seal is applied by the opening operation and the raising operation thereafter, and returning to the original position immediately before the first closing operation. When performing the lowering operation of the motion operation, the squeezing member performs squeezing operation on a horizontal seal scheduled area of the cylindrical packaging material, and the packaging material feeding device is configured to perform the above-described 2 When feeding the stitches, the horizontal sealing device performs the second closing operation without moving in the vertical direction at the lowered position in the box motion operation, thereby applying the horizontal sealing to the cylindrical packaging material. , And can be.
By performing the second closing operation in which the horizontal sealing device sandwiches the cylindrical packaging material at the lowered position in the box motion operation, the horizontal sealing can be performed by sandwiching the planned horizontal sealing region of the cylindrical packaging material. In addition, when the horizontal sealing device performs the lowering operation of the box motion operation, the squeezing member performs the squeezing operation on the horizontal sealing scheduled area of the cylindrical packaging material, so that the product put into the bag is filled. Even if the debris adheres to the inside of the horizontal sealing scheduled area of the cylindrical packaging material, it can be scraped into the bag by the ironing operation of the ironing member.

  Since the vertical bag making filling and packaging method and the packaging machine according to the present invention are configured as described above, the packaging material feeding device feeds the longitudinal length of a part of the bag with respect to the vertical feeding of the strip-shaped packaging material. When performing the second feed for feeding the remaining vertical length of the bag after the first feed, the horizontal seal device sandwiches the cylindrical packaging material to provide a horizontal seal and is immovable in the vertical direction. At this time, the vertical sealing device also sandwiches both side edge portions of the strip-shaped packaging material, but in the vertical direction in synchronization with the longitudinal feeding of the strip-shaped packaging material by the packaging material feeding device with the sandwiched state of both side edge portions. Move to. Accordingly, a slack is formed in the cylindrical packaging material immediately above the upstream side of the lateral seal device that does not move in the vertical direction, that is, the lower portion of the formed bag by the amount of the second feed. This slack promotes sinking of the product to the bottom of the bag, improves the filling efficiency of the product into the bag, and lowers the form of the bag package produced by sealing the bag containing the product. It can be in a stable form with a well-swelled sitting. The time between the second feeding of the strip-shaped packaging material by the packaging material feeding device is used for execution of the vertical sealing operation by the vertical sealing device, and is used as the vertical sealing period. Therefore, since the vertical seal operation period and the slack formation period are not provided at different times on the time chart, one packaging cycle is not unnecessarily lengthened, and the packaging material is intermittently fed while the packaging cycle Can be shortened, and can contribute to speeding up the packaging.

FIG. 1 is a block diagram showing an example of a control device provided in a vertical bag making filling and packaging machine according to the present invention. FIG. 2 is a diagram showing an example of a basic timing chart of the packaging operation of one cycle executed by the vertical bag making filling and packaging machine according to the present invention. FIG. 3 is a schematic diagram illustrating a packaging operation at a representative point of time in the vertical bag making filling and packaging machine executed by the timing chart shown in FIG. 2. FIG. 4 is a diagram showing another example of a timing chart of one cycle of the packaging operation performed by the vertical bag making filling and packaging machine according to the present invention. FIG. 5 is a schematic diagram illustrating a packaging operation at a representative time point of the vertical bag-filling / packaging machine executed in the timing chart shown in FIG. 4. FIG. 6 is a perspective view showing an example of a conventional vertical bag making filling and packaging machine.

  Embodiments of a vertical bag making filling and packaging machine according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an example of a control device provided in a vertical bag making filling and packaging machine according to the present invention. FIG. 2 is a time chart showing the temporal transition of one cycle of the packaging operation performed by the main apparatus in the vertical bag making and filling machine according to the present invention, and FIG. 3 is a vertical chart executed by the timing chart shown in FIG. It is a figure which shows typically the packaging operation | movement at the typical time of a type | mold bag making filling packaging machine.

  In the embodiment of the vertical bag making and filling machine according to the present invention, the structure of the vertical bag making and filling machine itself is shown in FIG. 6 and the conventional vertical bag making and filling machine shown in FIG. It may be the same. That is, the vertical bag making filling and packaging machine 50 forms, for example, a cylindrical packaging material from a belt-shaped packaging material, a charging device for a product S such as a hopper combined with a weighing machine (which is well known and omitted in FIG. 6). A vertical sealing device 52, a packaging material feeding device (paper feeding device) 55 for feeding a strip-shaped packaging material or a cylindrical packaging material in the vertical direction of the packaging machine, and a horizontal sealing device 54 for applying a horizontal sealing portion to the cylindrical packaging material in the transverse direction And a cutter device 56 that cuts the cylindrical packaging material at the horizontal seal portion and separates the bag packaging body from the cylindrical packaging material. Hereinafter, with respect to equivalent components in the vertical bag making filling and packaging machine 50, the same reference numerals as those used in FIG. The packaging operation of the vertical bag making filling and packaging machine 50 is an integration of the operations performed by these various devices constituting the vertical bag making filling and packaging machine 50.

  In the block diagram shown in FIG. 1, a basic relationship between each device constituting the vertical bag making filling and packaging machine 50 and the control device 20 is shown. Various setting items such as the bag length and the packaging speed necessary for the packaging operation are input to the calculation unit 21 of the control device 20 by the setting unit 19, and necessary items are stored in the memory 22. The control device 20 includes a product supply control unit 23, a packaging material feed control unit 24, a vertical seal control unit 25, a horizontal seal control unit 26, and a cutter control unit 27, each of which outputs a command from the calculation unit 21.

  The product supply control unit 23 outputs a control signal to a product supply device composed of a hopper combined with a weighing machine, and controls the timing and amount of supply of the product S to the packaging machine. The packaging material feed control unit 24 outputs a control signal to a packaging material feed device 55 such as a suction belt device, for example, and the timing and feed amount of the packaging material (tubular packaging material Ft) fed by the packaging material feed device 55. To control. The vertical seal control unit 25 includes, for example, bar-shaped vertical seal blocks 52a and 52b, and controls the vertical seal device 52 to form the tubular packaging material Ft by bonding the side edge portions fe and fe of the belt-shaped packaging material Fw. A signal is output to control the operation timing of the vertical sealing device 52 and the like. The lateral seal control unit 26 includes, for example, bar-shaped lateral seal blocks 54a and 54b, and seals the tubular packaging material Ft in the transverse direction. At the same time, a control signal is output to the horizontal sealing device 54 forming the horizontal sealing portion Se, and the operation timing of the horizontal sealing device 54 is controlled. The cutter control unit 27 outputs a control signal to, for example, a cutter device 56 (including a driving device therefor) incorporated in the horizontal seal device 54, and cuts the packaging material between the horizontal seal portions Se and Se to form a bag. The operation timing of the cutter device 56 that separates and cuts the packaging body Bp from the cylindrical packaging material Ft is controlled.

  The vertical seal control unit 25 controls the vertical seal device 52 not only to perform a simple opening / closing operation but also to move in the packaging material feeding direction, that is, to perform a box motion operation. As will be described later, the movement of the vertical sealing device 52 in the vertical direction (packaging material feeding direction) forms a slack in the portion of the cylindrical packaging material positioned immediately upstream of the horizontal sealing device 54, that is, the lower portion of the bag. However, it is not responsible for the main feeding of the packaging material for the formation of the bag, but the operation timing or the like (operation speed or (Including the operation amount).

  In the box motion operation of the vertical seal device 52, for example, the vertical seal blocks 52a and 52b are initially at the highest position in the feeding direction of the packaging material and opened with respect to both side edge portions fe and fe of the strip-shaped packaging material Fw. From the position, it is closed laterally toward both side edge portions fe and fe of the belt-like packaging material Fw, sandwiches both side edge portions fe and fe, and moves in the feeding direction of the packaging material while sandwiching both side edge portions fe and fe. The side edge portions fe and fe are bonded together to form the cylindrical packaging material Ft to reach the lowermost position, and then opened in the lateral direction to release the vertical seal portion Sc and further reverse to the packaging material feeding direction. This is an operation of following a path that rises in the direction and returns to the initial position.

  The vertical movement operation of the vertical seal blocks 52a and 52b may be realized, for example, by driving an actuator so as to move in the vertical direction only when necessary. Instead, using an appropriate motion conversion mechanism that converts the rotational output of the servo motor into a reciprocating motion, the operation in the feeding direction of the belt-shaped packaging material Fw and the opening and closing of both side edge portions fe and fe of the belt-shaped packaging material Fw It can also be realized by synthesizing the operations to be performed. The present applicant has proposed an eccentric cam mechanism for a vertical seal device (Japanese Patent No. 5161669, Japanese Patent No. 5260071, Japanese Patent Laid-Open No. 2018-034832), and using such an eccentric cam mechanism, a vertical seal is provided. The box motion of the device 52 may be realized.

  FIG. 2 is a timing chart showing an example (basic change in operation with time) of the main apparatus in one cycle of the vertical bag making filling and packaging machine according to the present invention. In FIG. 2, the horizontal axis represents time, and one cycle is shown on a time scale from 00 to 100. The vertical axis basically represents the operating speed of each main device. Here, main devices of the vertical bag making filling and packaging machine are a vertical sealing device 52, a horizontal sealing device 54, and a packaging material feeding device 55, and a vertical seal control unit 25, a horizontal sealing control unit 26, and a packaging material feeding control unit. 24 controls each according to the timing chart.

  In this embodiment, as shown in the timing chart of FIG. 2, the lateral seal device 54 opens and closes to and from the cylindrical packaging material Ft of the lateral seal blocks 54 a and 54 b constituting the lateral seal device 54. Only do. The packaging material feeding device 55 performs the packaging material feeding operation, that is, the longitudinal feeding operation in the direction along the cylinder axis of the filling cylinder 53 of the cylindrical packaging material Ft, divided into two periods before and after in one cycle. . The first feed of the packaging material feed is a main feed whose feed amount is the feed amount to which the packaging material should be sent in order to form most of the length of one bag in one packaging cycle. Accordingly, the first feed amount is determined within the range of the vertical length in which the vertical seal blocks 52a and 52b of the vertical seal device 52 apply the vertical seal to the packaging material. The second packaging material feed is a secondary feed set to such an extent that the feed amount causes slack in the tubular packaging material Ft, as will be described later. The vertical sealing device 52 performs an opening / closing operation and a vertical movement operation, but only the vertical sealing period T2 is shown as the operation in order to avoid the complexity of illustration.

  The operation of the packaging material feeding device 55, the vertical sealing device 52, and the horizontal sealing device 54 will be described as time passes according to the timing chart shown in FIG. The packaging material feeding device 55 starts the first packaging material feeding at time t1 after the start of the cycle at time t0. The packaging material feed reaches a constant feed speed at time t2, and then the packaging material feed speed starts decelerating at time t3, and the first packaging material feed is finished at time t4. From time t0 to t4, the first packaging material feeding is performed as the main feeding of the packaging material, and the packaging material of almost the length necessary for forming the bag is fed. During this time, the vertical seal blocks 52a and 52b of the vertical seal device 52 and the horizontal seal blocks 54a and 54b of the horizontal seal device 54 are both opened so as not to interfere with the feeding of the packaging material (allowing passage of the packaging material). Maintains the occupied state.

  At time t3 when the first packaging material feed starts to decelerate, the horizontal seal blocks 54a and 54b of the horizontal seal device 54 start to close. At time t4 during the closing operation of the horizontal sealing device 54, the feeding speed of the cylindrical packaging material Ft by the packaging material feeding device 55 becomes 0, and the packaging material feeding is stopped. At time t5, which is a short period after time t4, the closing operation of the lateral sealing device 54 ends. Accordingly, at time t5 when the horizontal seal blocks 54a and 54b complete the closing operation, the stopped cylindrical packaging material Ft is sandwiched, and the horizontal sealing period in which the horizontal sealing is performed by pressurizing and heating the cylindrical packaging material Ft. T1 is started. At the same time, the second feeding is started as a secondary feeding of the cylindrical packaging material Ft by the packaging material feeding device 55, and the vertical seal blocks 52a and 52b of the vertical sealing device 52 are closed to sandwich the side edge portions fe and fe. The vertical sealing period T2 is also started. The vertical sealing device 52 starts to descend in synchronization with the second feeding of the cylindrical packaging material Ft with the start of the vertical sealing period T2.

  The speed of the second feeding of the cylindrical packaging material Ft by the packaging material feeding device 55 is sufficiently slower than the speed of the first feeding, reaches a constant speed at time t6, and continues at the constant speed until time t7. Decelerate and feed speed becomes zero at time t8. The period from the time t5 to the time t8 is a vertical seal period T2 for the vertical seal device 52, in which the vertical seal blocks 52a and 52b are closed to apply the vertical seal for bonding the side edge portions fe and fe, and the cylindrical shape. It is also a period during which the lowering operation is performed in the same direction as the longitudinal feeding of the packaging material Ft. The period from the time t5 to the time t8 is also a period for the second feeding of the cylindrical packaging material Ft by the packaging material feeding device 55, and is also a lateral sealing period T1 by the lateral sealing device 54. Thus, the period for the second feeding of the cylindrical packaging material Ft, the vertical sealing period T2 by the vertical sealing device 52, and the horizontal sealing period T1 by the horizontal sealing device 54 start and end at time t5 to time 8. The two sealing operations of the horizontal sealing device 54 and the vertical sealing device 52 and the second packaging material feeding operation of the packaging material feeding device 55 continue until time t8, and the second packaging material feeding operation is performed. The feeding and both sealing periods T1, T2 end at time t8.

  At time t8 when the horizontal sealing period T1 ends, the horizontal sealing device 54 starts an opening operation. The opening operation is performed in a short period until time t9, and at time t9, the horizontal seal blocks 54a and 54b occupy a position separated from the horizontal seal portion Se formed by sandwiching the tubular packaging material Ft. The vertical seal device 52 occupies the lowest position at the time t8, and the vertical seal blocks 52a and 52b and the horizontal seal blocks 54a and 54b are in an open state. Feeding is possible. After that, the vertical sealing device 52 rises in the direction opposite to the feeding direction of the packaging material with the vertical sealing blocks 52a and 52b opened, and returns to the initial position (uppermost position) by time t12 which is the end time of the packaging cycle. One cycle of the vertical sealing operation is completed.

  Between time t5 and time t8, the horizontal seal device 54 is in the horizontal seal period T1, and the horizontal seal seal blocks 54a and 54b sandwich the cylindrical packaging material Ft, but do not move in the packaging material feed direction and stop. During the operation, the longitudinal seal seal blocks 52a and 52b of the longitudinal seal device 52 in the longitudinal seal period T2 are fed in the packaging material feed direction while sandwiching the side edge portions fe and fe of the packaging material which are bent in a substantially cylindrical shape. At the same time, the packaging material feeding device 55 performs the second packaging material feeding operation. As a result, the tubular packaging material Ft to which the second packaging material feed is performed while the horizontal sealing device 54 stops moving in the vertical direction has a portion immediately above the upstream side of the horizontal sealing device 54, that is, a bag. A slack is formed in the lower region of B.

  FIG. 3 is an explanatory diagram for explaining the main states of the vertical bag making filling and packaging machine operating in accordance with the time chart shown in FIG. The state (1) of FIG. 3 shows the state of the packaging operation at time t3, for example. The vertical seal blocks 52a and 52b of the vertical seal device 52 and the horizontal seal blocks 54a and 54b of the horizontal seal device 54 both maintain the open position, and the packaging material feeding device 55 includes the vertical seal device 52 and the horizontal seal device 52. The first feeding of the packaging material is almost completed without interfering with the sealing device 54 (allowing passage of the packaging material). The state (2) in FIG. 3 shows a state at time t5 when the horizontal sealing device 54 completes the closing operation. The horizontal seal blocks 54a and 54b are in contact with the tubular packaging material Ft and occupy the abutted position, and the horizontal seal period T1 is started. At the same time, the vertical sealing period T2 by the vertical sealing device 52 is also started, and the packaging material feeding device 55 also starts the second packaging material feeding operation.

  State (3) in FIG. 3 shows a state in which slack is formed in the packaging material at a time between times t5 and t8. The vertical seal seal blocks 52a and 52b of the vertical seal device 52 move downward while sandwiching the side edge portions fe and fe, and the packaging material feeding device 55 performs the second packaging material feeding. Since the horizontal sealing device 54 does not move in the vertical direction, the second feeding of the packaging material causes a slack in the portion of the cylindrical packaging material Ft located immediately above the upstream side of the horizontal sealing device 54, and the lower portion of the bag B is loosened. It will be in a state of swelling below. The product S put into the bag B through the filling cylinder 53 easily sinks into the lower part of the bag B, and the manufactured bag package Pb has a good sitting shape. The period from time t5 to t8 is also a vertical sealing period T2 by the vertical sealing device 52, and the vertical sealing device 52 descends in synchronization with the second feeding of the packaging material by the packaging material feeding device 55 to form a slack. Since the operation is also used as a period (vertical seal period T2) in which both side edge portions fe and fe of the packaging material are sandwiched to perform the vertical seal (vertical seal period T2), it is avoided that the packaging cycle time is unnecessarily lengthened. The speed is improved.

  The packaging material shown in FIG. 3 is fed by a packaging material feeding device 55 using a single suction belt disposed behind the filling cylinder 53. As shown in FIG. You may carry out by the packaging material feeder 55a, 55b by a pair of suction belt arrange | positioned at both sides. Since the vertical movement operation of the vertical sealing device 52 only needs to be performed in synchronism with the second packaging material feeding by the packaging material feeding device 55, the vertical movement amount is small. The operation burden is small.

  FIG. 4 shows another example of a timing chart for one cycle of the packaging operation performed by the vertical bag making filling and packaging machine according to the present invention. This timing chart shows that the basic seal shown in FIG. 2 is used so that the horizontal sealing device 54 not only opens and closes but also moves up and down, and the ironing member provided in the horizontal sealing device 54 performs the ironing operation on the upper part of the bag. The timing chart is partially modified. About the operation | movement equivalent to the operation | movement performed with the timing chart shown in FIG. 2, description is abbreviate | omitted by using the same thing as the time code | symbol shown in FIG. 2, and the modified matter is demonstrated hereafter.

  In the timing chart of FIG. 4, the horizontal seal device 54 is additionally moved up and down, and the horizontal seal device 54 has the horizontal seal blocks 54 a and 54 b opened at time t 0 before the first packaging material feed is started. The ascending is started in the state, and the ascending is performed until the time t25 during the first feeding of the packaging material by the packaging material feeding device 55. At time t3 when the first feeding of the packaging material by the packaging material feeding device 55 starts to decelerate, the lateral seal device 54 starts the first closing operation and simultaneously starts the lowering operation. The first closing operation of the horizontal sealing device 54 is continued until time t51 after the first packaging material feed, and the closing operation is stopped at a position immediately before contacting the cylindrical packaging material Ft.

  The horizontal sealing device 54 includes an ironing member 60 composed of a pair of ironing plates 60a and 60b so as to sandwich the cylindrical packaging material Ft (see FIG. 5). The squeezing member 60 is disposed on the lower surfaces of the horizontal seal blocks 54a and 54b so as to be able to advance and retract toward the cylindrical packaging material Ft, and the horizontal seal blocks 54a and 54b are advanced toward the cylindrical packaging material Ft. It has a well-known structure that can sometimes come into contact with the cylindrical packaging material Ft via a spring force.

  After the horizontal sealing device 54 starts the first closing operation, the pair of squeezing plates 60a and 60b sandwiching the tubular packaging material Ft from the outside moves downward while rubbing against the tubular packaging material Ft. As a result, during the time t3 to t52 (the ironing period T3), the ironing operation is performed with respect to the lateral seal planned area (the head of the bag B). Even if the debris of the product S adheres to the inner side of the horizontal seal planned area of the tubular packaging material Ft, the debris of the product S is scraped into the bag B by the squeezing operation of the wiping member 60. The horizontal sealing device 54 does not pinch the pieces of the product S in the planned sealing area, and it is possible to prevent a horizontal sealing failure.

  At time t52 when the ironing period T3 ends, the horizontal sealing device 54 performs the closing operation again (second closing operation up to time t53). At time t53, the horizontal seal blocks 54a and 54b sandwich the planned horizontal seal area of the cylindrical packaging material Ft and start horizontal sealing. Since the lowering operation of the horizontal sealing device 54 is completed at time t52, the ironing plates 60a and 60b of the ironing member 60 abut on the bag B (the ironing member 60 is further moved along with the closing operation of the horizontal seal blocks 54a and 54b). Even if the movement to be closed is absorbed by the deformation of the spring, the ironing operation is not performed. The horizontal sealing period T1 started at time t53 is continued until time t8, as in the case of the time chart shown in FIG. Similarly to the case of the time chart shown in FIG. 2, at time t53, the second packaging material feeding period of the packaging material feeding device 55 for slack formation and the vertical sealing period T2 ( Including the vertical movement of the vertical seal device 54) and continues until time t8.

  FIG. 5 is an explanatory diagram for explaining the main state of the vertical bag making filling and packaging machine operating in accordance with the time chart shown in FIG. The state (1) in FIG. 5 shows the state of the packaging operation at time t2, for example. The vertical sealing device 52 occupies the raised position, and the horizontal sealing device 54 is rising. The vertical seal blocks 52a and 52b of the vertical seal device 52 and the horizontal seal blocks 54a and 54b of the horizontal seal device 54 both maintain the open position, and the packaging material feeding device 55 includes the vertical seal device 52 and the horizontal seal device 52. The packaging material is fed for the first time without interfering with the sealing device 54 (allowing passage of the packaging material). The state (2) in FIG. 5 shows a packaging operation at time t51, for example. The vertical sealing device 52 still occupies the raised position and is open, and the horizontal sealing device 54 completes the first closing operation and occupies a position close to the tubular packaging material Ft, and from time t3. The descent operation started is continuing. The pair of squeezing plates 60a and 60b of the squeezing member 60 occupies a position in contact with the cylindrical packaging material Ft, and the squeezing period T3 in which the squeezing operation is performed on the lateral seal planned region is started.

  The state (3) in FIG. 5 shows the state of the packaging operation of the vertical bag making filling and packaging machine at time t53. This is the same as the packaging operation at time t5 in the time chart shown in FIG. At the time t53, the horizontal sealing device 54 has finished the second closing operation, and the horizontal sealing blocks 54a and 54b start the horizontal sealing by sandwiching the tubular packaging material Ft (the horizontal sealing period T1 by the horizontal sealing device 54). The start of the). The lowering operation of the horizontal sealing device 54 has already been completed at time t52, and the lowest position is maintained. On the other hand, the vertical seal device 52 performs a closing operation, and the vertical seal blocks 52a and 52b sandwich the both side edge portions fe and fe to start the vertical seal (start of the vertical seal period T2 by the vertical seal device 52). Further, at time t53, the packaging material feeding device 55 starts the second packaging material feeding operation.

  The state (4) in FIG. 5 shows a state where slack is formed in the packaging material at a time between time t53 and t8, for example, at time t7. The vertical seal seal blocks 52a and 52b of the vertical seal device 52 are lowered while sandwiching the side edge portions fe and fe, and the packaging material feeding device 55 performs the second packaging material feeding. At this time, the horizontal sealing device 54 does not move in the vertical direction, so that the cylindrical packaging material Ft sent by the second packaging material feed is slackened at a portion immediately above the upstream side of the horizontal sealing device 54. As a result, the lower portion of the bag B is loosened and the bag B is in a bulging state. The product S put into the bag B through the filling cylinder 53 is easily sunk into the lower part of the bag B, and the bag package Pb is in a satisfactori form. At the same time, the vertical sealing period T2 by the vertical sealing device 52 is also started, and the use of the slack formation period and the vertical sealing period T2 can avoid unnecessary lengthening of one packaging cycle.

  The packaging material shown in FIG. 5 is fed by a packaging material feeding device 55 using a single suction belt disposed behind the filling cylinder 53. As shown in FIG. You may carry out by the packaging material feeder 55a, 55b by a pair of suction belt arrange | positioned at both sides. Since the vertical movement operation of the vertical sealing device 52 only needs to be performed in synchronism with the second packaging material feeding by the packaging material feeding device 55, the vertical movement amount is small. The operation burden is small.

  In the above embodiment, when the horizontal sealing device 54 sandwiches the cylindrical packaging material Ft and performs horizontal sealing, the horizontal sealing device 54 does not move in the vertical direction. Although described as a filling and packaging machine, even a vertical bag making filling and packaging machine of a type in which a packaging material is continuously fed can exhibit the same loosening action. In this case, not only the horizontal seal blocks 54a and 54b of the horizontal seal device 54 circulate like a box motion, but also the vertical seal device 52 has the same vertical seal blocks 52a and 52b as the horizontal seal device 54. It is assumed that it performs a circular motion like a box motion. When the feed corresponding to the second feed is performed continuously after the feed corresponding to the first feed by the packaging material feeding device 55, the vertical seal device 52 approaches the lateral seal device 54 relatively, that is, The vertical direction of the lowering operation is performed while the vertical sealing is performed by sandwiching the side edge portions fe and fe of the packaging material, rather than the lowering speed of the horizontal sealing device 54 that performs the lowering operation while performing the horizontal sealing while sandwiching the cylindrical packaging material Ft. By relatively increasing the descending speed of the sealing device 52, the lower portion of the bag to be formed from the cylindrical packaging material Ft by the approach distance (the cylindrical packaging positioned immediately above the upstream side of the horizontal sealing device 54). A slack is formed in the portion of the material Ft, and the sink of the product to the bag bottom is promoted. Further, the vertical sealing device 52 operates to form a slack in the tubular packaging material Ft while performing a vertical seal on both side edge portions fe and fe of the packaging material, and serves as both a slack formation period and a vertical sealing period. Thus, unnecessary lengthening of one packaging cycle is avoided.

  As mentioned above, although the Example of the vertical type bag making filling packaging machine by this invention was described, Embodiment of the vertical type bag making filling packaging method by this invention is also demonstrated in description of the packaging operation | movement. Further, the embodiments of the vertical bag making filling and packaging method and the packaging machine according to the present invention are not limited to the embodiments described above, and various modifications can be made based on the technical idea of the present invention. is there.

DESCRIPTION OF SYMBOLS 19 Setting part 20 Control apparatus 21 Calculation part 22 Memory 23 Product supply control part 24 Packaging material feed control part 25 Vertical seal control part 26 Horizontal seal control part 27 Cutter control part 50 Vertical type bag making filling packaging machine 51 Former 52 Vertical seal apparatus 52a, 52b Vertical seal block 53 Filling cylinder 54 Horizontal seal device 54a, 54b Horizontal seal block 55, 55a, 55b Packaging material feeder (paper feeder)
56 Cutter device 56a Cutter blade 56b Groove 59, 59 Tension guide 60 Ironing member 60a, 60b Ironing plate Ft Cylindrical packaging material Fw Band-shaped packaging material fe, fe Both side edge part S Product Sc Vertical seal part Se Horizontal seal part B Bag Bp Bag Package T1 Horizontal sealing period T2 Vertical sealing period T3 Ironing period

Claims (6)

The belt-shaped wrapping material that is bent so as to surround the filling cylinder is fed in the vertical direction by the wrapping material feeder,
Forming the strip-shaped packaging material into a cylindrical packaging material by sandwiching both side edge portions of the strip-shaped packaging material with a vertical sealing device and applying a vertical seal to the both-side edge portions,
By applying a horizontal seal by a horizontal sealing device that sandwiches the cylindrical packaging material, the subsequent bag is sealed while sealing the bag formed in advance from the cylindrical packaging material and charged with the product through the filling cylinder. Forming,
In the vertical bag making filling and packaging method for continuously producing a bag package in which the product is housed and packaged in the bag formed from the belt-shaped packaging material,
The belt-shaped packaging material is fed in the vertical direction by a double feed consisting of a first feed for sending the longitudinal length of a part of the bag and a second feed for feeding the remaining longitudinal length of the bag thereafter.
While the packaging material feeding device performs the second feeding, the horizontal sealing device performs the horizontal sealing on the cylindrical packaging material without moving in the vertical direction, and the vertical sealing device is attached to the side edge portions. A vertical bag making filling and packaging method comprising performing a vertical operation in synchronization with the second feeding by the packaging material feeding device while performing the vertical sealing.   2. The vertical bag making and filling packaging according to claim 1, wherein the horizontal sealing device performs only an opening / closing operation including a closing operation for sandwiching the tubular packaging material and an opening operation for separating the tubular packaging material from the sandwiched packaging material. Method. The horizontal sealing device includes a squeezing member, and performs a box motion operation that combines an opening / closing operation that approaches and separates from the cylindrical packaging material, and a vertical movement operation.
The box motion operation approaches the cylindrical packaging material in the first closing operation, performs a lowering operation in the approached state, performs a second closing operation to sandwich the cylindrical packaging material in the lowered position, and thereafter It is an operation of returning to the original position immediately before performing the first closing operation while being separated from the portion where the lateral seal is applied by the opening operation and the raising operation,
When the horizontal sealing device performs the lowering operation of the box motion operation, the squeezing member performs a squeezing operation for a horizontal sealing scheduled area of the tubular packaging material,
When the packaging material feeding device feeds the second time, the horizontal sealing device performs the second closing operation without moving in the vertical direction at the lowered position in the box motion operation. The vertical bag-making filling and packaging method according to claim 1, wherein the transverse seal is applied to a packaging material. A wrapping material feeder that feeds in a longitudinal direction the belt-shaped wrapping material that is bent around the filling cylinder; and
A vertical sealing device for forming the band-shaped packaging material into a cylindrical packaging material by sandwiching both side edge portions of the band-shaped packaging material and applying a vertical seal to the both side edge portions;
A horizontal seal that forms a subsequent bag while sealing a bag formed in advance from the cylindrical packaging material and filled with a product through the filling cylinder by sandwiching the cylindrical packaging material and applying a horizontal seal Equipped with equipment,
In a vertical bag making and filling machine for continuously producing a bag package in which the product is housed and packaged in the bag formed from the belt-shaped packaging material,
The packaging material feeding device is composed of a first-time feeding in which the belt-shaped packaging material is fed in the longitudinal direction, and a second-time feeding in which the remaining vertical length of the bag is fed thereafter. Do it twice,
While the packaging material feeding device performs the second feeding, the horizontal sealing device performs the horizontal sealing on the cylindrical packaging material without moving in the vertical direction, and the vertical sealing device is attached to the side edge portions. A vertical bag making and filling and packaging machine comprising a longitudinal operation in synchronism with the second feeding by the packaging material feeding device while performing the vertical sealing.   5. The vertical bag making and filling packaging according to claim 4, wherein the horizontal sealing device performs only an opening / closing operation including a closing operation for sandwiching the tubular packaging material and an opening operation for separating from the sandwiched tubular packaging material. Machine. The horizontal sealing device includes a squeezing member, and performs a box motion operation that combines an opening / closing operation that approaches and separates from the cylindrical packaging material, and a vertical movement operation.
The box motion operation approaches the cylindrical packaging material in the first closing operation, performs a lowering operation in the approached state, performs a second closing operation to sandwich the cylindrical packaging material in the lowered position, and thereafter It is an operation of returning to the original position immediately before performing the first closing operation while being separated from the portion where the lateral seal is applied by the opening operation and the raising operation,
When the horizontal sealing device performs the lowering operation of the box motion operation, the squeezing member performs a squeezing operation for a horizontal sealing scheduled area of the tubular packaging material,
When the packaging material feeding device feeds the second time, the horizontal sealing device performs the second closing operation without moving in the vertical direction at the lowered position in the box motion operation. The vertical bag making filling and packaging machine according to claim 4, wherein the horizontal seal is applied to a packaging material.

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