JP4990502B2 - Control method for filling and packaging machine and filling and packaging machine - Google Patents

Description

  The present invention relates to a filling and packaging machine in which, for example, a film is drawn out from a film roll wound in a roll shape and transported to form a bag while filling and packaging contents such as a liquid in the packaging bag.

2. Description of the Related Art Conventionally, in a filling and packaging machine in which contents such as this kind of liquid are filled and packaged, for example, a vertical seal roll member that feeds and guides a film roll wound into a roll and makes a pair of the films The film is made into a cylindrical shape by vertically sealing along the longitudinal direction of the film while being sandwiched by, and a pair of the bottom side and the bag mouth side of the film is fed along the width direction of the film while feeding the cylindrical film. 2. Description of the Related Art A filling and packaging machine that continuously forms packaging bags that are vertically and horizontally sealed by a rotary roll type seal mechanism that horizontally seals while being sandwiched between lateral seal members of a lateral seal roll is known. (For example, see Patent Document 1.)
JP-A-6-99914

  In the filling and packaging machine according to Patent Document 1 or the like, the packaging bag that is continuously sent out is perforated in the side seal portion of the packaging bag by the cutter mechanism on the downstream side of the side sealing mechanism, or the whole is cut into pieces. The packaging bag is separated and carried out.

  By the way, in the above-described conventional filling and packaging machine, the operation of the filling and packaging machine is operated by operating the operation switch including the operation start / stop switch for operating the filling and packaging machine separately from the main power switch of the filling and packaging machine. It is configured to start and stop. At this time, when the packaging machine is stopped (filling and packaging machine in a standby state), filling of the contents by the filling mechanism is stopped, and driving of the vertical sealing mechanism, the horizontal sealing mechanism, and the cutter mechanism is also stopped. Since the packaging bags positioned upstream from the mechanism and sealed vertically and horizontally by the transverse seal mechanism are in a continuous state suspended from the packaging bags, the packaging bags are connected by the heat source of the heater of the longitudinal and transverse seal mechanisms. The film may be partially melted and damaged by the influence of heat. Therefore, when the packaging machine is stopped, the vertical seal roll member is opened from the state in which the film is sandwiched by the pair of vertical seal roll members provided in the vertical seal mechanism and heat-sealed. Position where the heat of the roll member is not directly transferred to the film, or the transverse seal member of the transverse seal roll that forms a pair when the transverse seal mechanism stops when the film feed of the filling and packaging machine stops, does not pinch the film By setting the horizontal seal roll to stop at, the horizontal seal member of the horizontal seal roll stops in a positional relationship that does not directly contact the film of the packaging bag when the horizontal seal mechanism is stopped. The problem that the adhesive layer itself melts due to heat and the film itself is damaged can be solved. The has been proposed.

However, at the start of the operation of the filling and packaging machine, the vertical sealing mechanism and the horizontal sealing mechanism are driven and the contents are filled by the filling mechanism so that the contents are filled into the packaging bag and fed out to perform normal operation. However, in the initial stage with respect to the film feeding operation, a cylindrical package in which the filling nozzle adjacent to the vertical seal mechanism is cooled by the opening operation of the vertical seal member during operation stop and is horizontally sealed. When the contents are supplied into the bag under normal condition settings , the packaging bag is not filled with the specified amount of contents, so the actual filling amount of the contents tends to be insufficient, resulting in operation. Some of the packaging bags that were first drawn out and laterally sealed at the start were handled as defective because the contents were insufficient, and this was a factor in reducing productivity.

  Then, this invention is made paying attention to the problem mentioned above, and it aims at providing the filling packaging machine which can suppress the quantity of the packaging bags handled as inferior goods as much as possible, and its control method.

The control method of the filling and packaging machine according to the present invention is, as described in the control method of the filling and packaging machine according to the first aspect, along the longitudinal direction of the film while sandwiching the continuously transported film with a pair of vertical seal members. A vertical sealing mechanism that vertically seals, a filling mechanism that fills the cylindrical film vertically sealed by the vertical sealing mechanism from the filling nozzle portion adjacent to the vertical sealing mechanism, and the cylindrical film is fed. And a lateral seal mechanism that laterally seals at a predetermined interval while sandwiching the bottom side and the bag mouth side of the film with a lateral seal member that forms a pair along the width direction of the film. By the stop operation, the vertical seal member forming the pair of the vertical seal mechanism is released from the state where the film is sandwiched and vertically sealed, and the horizontal seal mechanism Transverse sealing member forming a can, a set control method of filling and packaging machine comprising such stopped at a position not nipped the film, the content by the filling mechanism definitive the filling start of the filling and packaging machine the target fill weight is characterized in by comprising setting via the control means so as to fill with increased relative to normal target filling amount.

Further, as described in claim 2, in the control method of the filling and packaging machine according to claim 1, based on production conditions such as a transfer speed of the film and a filling amount of the contents by an operator input, and is characterized in by comprising setting via the control means so as to fill with increased relative to the target filling amount of normal target filling amount of the contents by the filling mechanism.

Further, as described in claim 3, in the control method of the filling and packaging machine according to claim 1 or 2, the target filling amount of the contents is gradually suppressed at the start of filling by the filling mechanism. It is characterized by being set to match the normal target filling amount.

The filling and packaging machine according to the present invention , as described in the filling and packaging machine according to claim 4, is a longitudinal seal that longitudinally seals a continuously transported film along the longitudinal direction of the film while being sandwiched by a pair of longitudinal seal members. A sealing mechanism, a filling mechanism for filling a cylindrical film vertically sealed by the vertical sealing mechanism with a content from a filling nozzle portion adjacent to the vertical sealing mechanism, and a bottom side of the film while feeding the cylindrical film And a lateral seal mechanism that laterally seals at a predetermined interval while being sandwiched by a lateral seal member that forms a pair along the width direction of the film. A vertical seal member forming a pair of mechanisms operates to release from a state where the film is sandwiched and vertically sealed, and a horizontal seal member forming a pair of the horizontal seal mechanisms is Film A filling and packaging machine comprising been set to stop at a position where no pressure clamping and the normal target filling amount the target filling amount of the contents by the filling mechanism definitive the filling start of the filling and packaging machine a filling and packaging machine, characterized by comprising setting via the control means so as to fill with extenders for.

Further, as described in claim 5, in the filling and packaging machine according to claim 4, setting means for setting production conditions such as a transfer speed of the film and a filling amount of the contents according to an operator input; based on the production condition set by the setting means, formed by set via the control means so as to fill by increasing the target filling amount with respect to the normal target filling amount of the contents by the charging mechanism This is a filling and packaging machine.

Further, as described in claim 6, in the filling and packaging machine according to claim 4 or claim 5, at the start of filling by the filling mechanism, the target filling amount of the contents is gradually suppressed to a normal target. The filling and packaging machine is set through the control means so as to match the filling amount.

In the filling and packaging machine and its control method according to the invention, via the control means so as to fill by increasing the target filling amount of the contents by the charging mechanism for regular target loading at the beginning filling of the filling and packaging machine by becoming set Te, packaging bag which has been treated as defective until now, i.e. the actual filling amount at the start operating the packaging bag P that has been a shortage of the actual loading (at the start of filling) than conventional Providing a highly productive filling and packaging machine that can reduce the number of defective products and its control method by making it possible to commercialize as a good product by supplementing the normal actual filling amount by increasing the amount Can achieve the intended purpose.

  Hereinafter, a filling and packaging machine and a control method thereof according to the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention.

In the figure, as a general outline configuration of the filling and packaging machine, a film roll R around which a packaging film F is wound is mounted and supported by a holding frame 1 provided on the side of the filling and packaging machine. The wrapping film F drawn and guided from R is temporarily directed upward while being given a predetermined tension, and is fed out and guided to the upper side of the filling and packaging machine via the film guiding mechanism 2, and is filled and wrapped by the film guiding mechanism 2. The film F fed out and guided to the upper side of the machine is configured to be folded in half along the longitudinal direction of the packaging film F by the film folding mechanism 3 and guided to the lower side.

In the first embodiment, the two-fold film F drawn out and conveyed downward is guided to the vertical seal mechanism 4. The vertical seal mechanism 4 is rotatably provided by a driving means M1 composed of a servo motor, and has a pair of opposed vertical seal rolls 4A . The film F folded in two is the pair of vertical seal rolls. a vertical sealing roller member 4B provided on the outer periphery of 4A thus being heat-sealed in the longitudinal direction is vertical sealing FH is formed and then the horizontal which is disposed downstream of the conveyance of the lower i.e. the film F of the vertical sealing mechanism 4 Heat sealing is performed by the sealing mechanism 5 to form a lateral seal FS location.

  The horizontal seal mechanism 5 is rotatably provided by, for example, a driving means M2 made of a servo motor, and is laterally moved by a horizontal seal member 5B provided along the width direction of the outer periphery of a pair of opposed horizontal seal rolls 5A. A horizontal seal FS location is formed in the packaging film F by heat sealing at a predetermined interval, and the bottom is formed into a bottomed cylindrical shape that becomes the packaging bag P by this horizontal seal FS location, thereby forming a bottomed cylindrical shape. The formed packaging film F is filled with the contents W from the filling nozzle portion 6A of the filling mechanism 6 via the pump 6B, and after the packaging film F is sent out, it is provided on the horizontal seal roll 5A of the horizontal seal mechanism 5. The portion which becomes the bag mouth portion of the packaging film F is laterally heat sealed by the lateral seal member 5B, and the contents W are sealed by the lateral seal FS by the lateral heat seal. Sealed, and is configured to packaging bag P that content W is filled in a continuous state one after another are successively transported downward.

  The filling mechanism 6 is provided with, for example, a pump 6B for supplying the contents W, and the pump 6B is provided so that the contents W can be charged and supplied by the rotation operation of the driving means M3 comprising a servo motor. Yes.

Further, the transverse sealing mechanism below the 5, blade receiving and cutters blade for all cutting that can be carried out separately a substantially central portion of the transverse seal FS portion of the filling packaging bag P in the state of continuous vertically Is provided. In this embodiment, it is provided only cutter mechanism 7 equipped with cutters blade for all cutting, in some cases so as to comprise a first cutter mechanism roulette, also for all the cuts in subsequent step second cutter mechanism with the cutters blade may be provided with.

Note that the cutter mechanism 7 is provided to be rotated by a drive means M4 comprising a servomotor for rotating one of the cutters blade.

  Next, the electrical configuration of the filling and packaging machine of the present invention will be described with reference to FIG.

  The main power switch 8A is for turning on / off the power of the filling and packaging machine, and is configured by setting means 8 including a switch operation group provided on the operation panel, a switch group of a touch panel, and the like. When the power switch 8A is turned on, a heater (not shown) of the vertical seal mechanism 4 and a heater (not shown) of the horizontal seal mechanism 5 are displayed based on predetermined control of the control means 9 including a control device such as a microcomputer or a sequencer. The power is supplied to electrical components such as (not shown).

  In addition to the main power switch 8A, an operation switch 8B including an operation start / stop switch for operating the filling and packaging machine is provided in the setting unit 8, and the control unit 9 is turned on when the operation switch 8B is turned on. The content W is supplied from the filling mechanism 6 via the driving means M3 based on the predetermined control by the charging mechanism 6 or the vertical sealing roll 4A and the horizontal sealing roll 5A provided in the vertical sealing mechanism 4 and the horizontal sealing mechanism 5 respectively. The driving means M1, M2 and the driving means M4 of the cutter mechanism 7 are electrically operated to rotate. The operation switch 8B may be provided with a filling start switch or a cutter mechanism operation switch so that the filling mechanism 6, the cutter mechanism 7 and the like can be operated independently.

Further, the setting means 8 includes production conditions (setting of the film F transfer speed, setting of the seal pitch, setting of the filling amount of the contents W and setting of the operation timing, according to the packaging form for each product type, each sealing mechanism 4, No. 5 production conditions such as seal pressure setting and operation timing setting) can be input numerically for each item. In this case, based on the set value (production conditions) input by the operator, the filling mechanism 6 uses the control means 9 until the predetermined time t1 elapses from the start of operation of the filling packaging machine (at the start of filling). normal target filling amount the target filling amount of the contents W are set so as to drive the pump 6B to fill with increasing relative (equal to the set filling amount).

  Therefore, in the filling and packaging machine of the present invention having the above-described configuration, the vertical seal mechanism 4 disposed on the downstream side of the film folding mechanism 2 is folded in half by the operation of the driving means M1 during normal operation. Since the folded edges (left and right edges) of the film F are sandwiched between the vertical seal roll members 4B, the vertical seal FH is applied along the vertical direction of the film F while the film F is fed out, and then the horizontal seal mechanism When the drive means M2 is operated, the transverse seal FS location is formed in the packaging film F by the transverse seal members 5B provided along the width direction of the outer periphery of the pair of opposed transverse seal rolls 5A. The contents of the packing film F formed in a cylindrical shape from the filling nozzle portion 6A of the filling mechanism 6 through the pump 6B in accordance with the rotation operation by the driving means M3. After W has been filled and the packaging film F has been sent out, the lateral seal member 5B provided on the lateral seal roll 5A of the lateral seal mechanism 5 is used to perform lateral heat sealing on the portion serving as the bag mouth of the packaging film F. The contents W are sealed by the horizontal seal FS by the horizontal heat seal.

Packaging bag P that is laterally sealed FS also by operation of the cutter mechanism 7 driving means M4, substantially intermediate portion of the laterally sealed FS portion is cut by one of the cutters blade facing is rotated, thereby The packaging bags P filled with the contents W in a continuous state are separated from each other and continuously carried out downward.

In this embodiment, the control means 9 has a filling mechanism at the start of the operation of the filling and packaging machine (at the start of filling), that is, when the operation switch 8B is turned on, with the on signal input as a base point. 6 starts filling the contents W, and the vertical seal mechanism 4, the horizontal seal mechanism 5 and the cutter mechanism 7 are driven to rotate. At this time, based on the set value (production conditions) input by the operator, the target filling of the contents W by the filling mechanism 6 from the start of filling of the filling and packaging machine through the control means 9 until a predetermined time t1 has elapsed. so that the actual filling amount at the initial driving is increased than before by increasing the rotational speed of the drive means M3 consisting servo motor for driving the pump 6B to fill by increasing the amount relative to the normal target filling amount To control.
More specifically, for example, the film F transfer speed, the cylindrical film width, the sealing pitch of the packaging bag P, the filling amount in each packaging bag P, etc., which are production conditions according to the packaging form of each product type As shown in FIG. 4, the target filling amount of the content W by the filling mechanism 6 (see FIG . 4) until a predetermined time t <b> 1 elapses from the start of filling of the filling and packaging machine, as shown in FIG. 4 . in just when setting via the control means 9 so as to fill in increased against the referred) a normal target filling amount "loading", normal gradually reducing the target filling amount of the contents W by setting via the control means 9 so as to match the target fill weight, while making up for early shortage of the actual loading by increasing the actual loading than conventional in the initial stages, gradually normal real By reducing to match the filling amount It becomes possible to perform the filling operation stably can be suppressed turbulence of the contents during normal filling, packaging bag P that has been treated as defective until now, i.e. has become a shortage of the actual loading and the packaging bag P, it is possible to commercialize non-defective by supplementing the normal actual loading by increasing than before actual loading at the start operation (at the start of the filling), thereby the defective The quantity can be reduced, and a highly productive filling and packaging machine and its control method can be provided.

Further, by initial setting (numerical control) through the control means 9 according to the packaging specification conditions such as the size of the packaging bag P, the material of the film F, the amount of the contents W to be filled, the feeding speed of the film F, etc. it is also possible to numerically controlled to be filled by increasing the target filling amount of the contents W by filling mechanism 6 for regular target loading at the beginning filling of the filling and packaging machine, also the contents W as gradually suppressed by means match the normal target filling amount the target filling amount of, as shown in the control timing of another embodiment of FIG. 5, only the target fill weight of finely stepwise content W (FIG. " It is also possible to set so as to reduce the “filling amount”) , to set a parabola (not shown ) , or to reduce the target filling amount roughly in steps.

In the embodiment of the present invention, the packaging bag P by the four-side seal is formed by the vertical seal mechanism 4 and the horizontal seal mechanism 5, but the filling and packaging machine according to the present invention has the vertical seal member 5B of the vertical seal mechanism 4. The same effect can be obtained even in the three-side seal type in which the heat seal is performed by installing it on one side which is the overlapping portion of the film F of the packaging bag P. In the embodiment of the present invention, the cutter mechanism 7 However, the filling and packaging machine according to the present invention may use a reciprocating cutter mechanism. In the embodiment of the present invention, the vertical seal mechanism 4 and the horizontal seal mechanism are used. the 5, although the sealing device of the rotating roll-type was described as an example, the filling and packaging machine according to the present invention, with sandwiching the sealing member forming a pair from the outside of the film F by reciprocating It is also possible to apply a vertical filling packaging machine comprising a sealing device according to the sealing device or the box motion type heat sealing Te.

It is a whole outline front view showing the filling packaging machine of the embodiment of the present invention. FIG. 2 is an operation explanatory view mainly showing an operation state of the filling and packaging machine of FIG. 1. FIG. 3 is a block diagram showing an electrical configuration of the embodiment of the present invention. FIG. 4 is a diagram illustrating the control timing of the embodiment of the present invention. FIG. 5 is a diagram showing the control timing of another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Holding frame 2 Film guide mechanism 3 Film folding mechanism 4 Vertical seal mechanism 4A Vertical seal roll 4B Vertical seal member 5 Horizontal seal mechanism 5A Horizontal seal roll 5B Horizontal seal member 6 Filling mechanism 7 Cutter mechanism 8 Setting means 8A Main power switch 8B operation Operation switch 9 Control means F Film FH Vertical seal FS Horizontal seal R Film roll W Contents

Claims (6)

A vertical seal mechanism that vertically seals the film that is continuously transferred along the longitudinal direction of the film while being sandwiched by a pair of vertical seal members;
A filling mechanism for filling the contents from the filling nozzle part adjacent to the vertical sealing mechanism into the cylindrical film vertically sealed by the vertical sealing mechanism ;
A lateral seal mechanism that laterally seals at a predetermined interval while feeding the cylindrical film while sandwiching a portion that becomes the bottom side and the bag mouth side of the film by a lateral seal member that forms a pair along the width direction of the film;
With
When the operation is stopped, the vertical seal members forming the pair of the vertical seal mechanisms are released from the state in which the films are sandwiched and vertically sealed, and the horizontal seal members forming the pair of the horizontal seal mechanisms are the a set control method of filling and packaging machine comprising such stopped at a position not nipped,
And characterized by being set via a control means to fill by increasing the target filling amount of the contents by the filling mechanism definitive the filling start of the filling and packaging machine for regular target loading Control method for filling and packaging machine. Based on the production conditions such as the loading of the transport speed and the contents of the film by the operator of the input, so as to fill by increasing the target filling amount of the contents by the filling mechanism for regular target loading The control method for a filling and packaging machine according to claim 1, wherein the control means is set via the control means. 3. The filling according to claim 1, wherein when filling is started by the filling mechanism, the target filling amount of the contents is gradually suppressed to be set to a normal target filling amount. 4. Control method of packaging machine. A vertical seal mechanism that vertically seals the film that is continuously transferred along the longitudinal direction of the film while being sandwiched by a pair of vertical seal members;
A filling mechanism for filling the contents from the filling nozzle part adjacent to the vertical sealing mechanism into the cylindrical film vertically sealed by the vertical sealing mechanism ;
A lateral seal mechanism that laterally seals at a predetermined interval while feeding the cylindrical film while sandwiching a portion that becomes the bottom side and the bag mouth side of the film by a lateral seal member that forms a pair along the width direction of the film;
With
When the operation is stopped, the vertical seal members forming the pair of the vertical seal mechanisms are released from the state in which the films are sandwiched and vertically sealed, and the horizontal seal members forming the pair of the horizontal seal mechanisms are Is a filling and packaging machine set to stop at a position where it is not pinched,
And characterized by being set via a control means to fill by increasing the target filling amount of the contents by the filling mechanism definitive the filling start of the filling and packaging machine for regular target loading Filling packaging machine. Setting means for setting production conditions such as a transfer speed of the film and a filling amount of the contents by an operator input, and a target of contents by the filling mechanism based on the production conditions set by the setting means filling and packaging machine according to claim 4, characterized by being set through said control unit so as to fill by increasing the filling amount with respect to the normal target filling amount. 5. The apparatus according to claim 4, wherein at the start of filling by the filling mechanism, the target filling amount of the contents is gradually suppressed to be set to the normal target filling amount through the control unit. Item 6. The filling and packaging machine according to Item 5.

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