JP2006248578A - Method of controlling filling and packaging machine, and filling and packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling and packaging machine which can minimize the number of package bags to be treated as defective items, and to provide a method of controlling the filling and packaging machine. <P>SOLUTION: According to the method of controlling the filling and packaging machine, at the beginning of filling operation, the filling and packaging machine is set via a control means 9 such that the filling amount of contents W by a filling mechanism 6 is increased relative to an ordinarily set value of the filling amount. Therefore the package bags P which have been treated as the defective items, i. e. the package bags P which each contain an insufficient amount of contents, are commercialized as non-defective products, by setting the filling amount to an increased value at the beginning of the filling operation, and filling the bag with the ordinary or sufficient amount of contents. Thus the number of defective products can be decreased, and therefore the productivity of the machine is increased. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a filling and packaging machine in which a bag is drawn and transported from a film roll wound in a roll shape, and the contents such as a liquid material are filled and packaged 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 in a roll shape and makes a pair of the film The film is made into a cylindrical shape by vertically sealing along the longitudinal direction of the film while being sandwiched between, 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, at the initial stage of the film feeding operation, when the contents are supplied under normal conditions in a horizontally sealed cylindrical packaging bag, the packaging bag is filled with a predetermined amount of content. As a result, the filling amount of the contents tends to be insufficient, and as a result, the contents are insufficient for several of the packaging bags that are first drawn out and horizontally sealed at the start of operation. It was handled as a defective product, which caused a decrease in 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.

  In the present invention, as described in the control method of the filling and packaging machine according to the first aspect, the vertical sealing mechanism that vertically seals the continuously transported film along the longitudinal direction of the film while being sandwiched by the pair of vertical sealing members And a filling mechanism that fills the cylindrical film vertically sealed by the vertical sealing mechanism, and places the bottom side and the bag mouth side of the film in the width direction of the film while feeding the cylindrical film. A lateral seal mechanism that laterally seals at a predetermined interval while being sandwiched by a pair of lateral seal members, and is a control method for a filling and packaging machine, wherein the filling mechanism at the start of filling of the filling and packaging machine A control method for a filling and packaging machine, characterized in that it is set via a control means so that the filling amount of the content is increased with respect to the normal 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, It is characterized in that it is set via the control means so that the filling amount of the content by the filling mechanism is increased with respect to the normal filling amount.

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

  Moreover, in the present invention, as described in the filling and packaging machine according to claim 4, a vertical sealing 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 sealing members; A filling mechanism that fills the cylindrical film vertically sealed by the vertical sealing mechanism, and a position on the bottom side and the bag mouth side of the film while feeding the cylindrical film along the width direction of the film. A horizontal sealing mechanism that performs horizontal sealing at a predetermined interval while being sandwiched by a pair of horizontal sealing members, and the filling mechanism of the contents by the filling mechanism at the start of filling of the filling packaging machine The filling and packaging machine is characterized in that the filling amount is set via the control means so that the filling amount is increased with respect to the normal filling amount.

  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 conditions set by the setting means, the filling means is set via the control means so that the filling amount of the contents by the filling mechanism is increased with respect to the normal filling amount. This is a filling and packaging machine.

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

  In the filling and packaging machine and the control method thereof according to the present invention, at the start of filling of the filling and packaging machine, the filling amount of the content by the filling mechanism is increased from the normal filling amount and filled via the control means. In general, by increasing the filling amount at the start of operation (at the start of filling), the packaging bag P that has been handled as a defective product until now, that is, the packaging bag P that has been short of the filling amount, is usually used. It is possible to provide a product as a non-defective product by making up for the filling amount, and to provide a highly productive filling and packaging machine capable of reducing the number of defective products and a control method thereof, The intended purpose can be achieved.

  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 guided to the upper side of the filling and packaging machine through the film guiding mechanism 2 while being given a predetermined tension, and is guided by the film guiding mechanism 2 to the filling and packaging machine. The film F fed out and guided to the upper side 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 drive means M1 composed of a servo motor, and a film F folded back in half by a vertical seal roll member 4B provided on the outer periphery of a pair of opposed vertical seal rolls 4A. The vertical seal FH is formed by heat-sealing in the vertical direction, and then heat-sealed by the horizontal seal mechanism 5 disposed below the vertical seal mechanism 4, that is, on the downstream side of the film F, so that the position of the horizontal seal FS is It is formed.

  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.

  Also, on the lower side of the horizontal seal mechanism 5, there are a cutter blade and a receiving blade for all cuts that can be separated and carried out by separating the substantially central portion of the horizontal seal FS portion of the filling and packaging bag P in a continuous state in the vertical direction. The provided cutter mechanism 7 is disposed. In this embodiment, only the cutter mechanism 7 having a cutter blade for all cuts is provided. However, in some cases, a first cutter mechanism for perforation is provided, and in the subsequent steps, all cutters are used. You may make it provide the 2nd cutter mechanism provided with the cutter blade.

  Note that the cutter mechanism 7 is rotatably provided by a driving means M4 including a servo motor for rotationally driving one cutter 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 content by the filling mechanism 6 from the start of operation of the filling and packaging machine (at the start of filling) through the control means 9 until a predetermined time t1 has elapsed. The pump 6B is set to be driven so that the filling amount of the object W is increased with respect to the normal 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.

  Further, the packaging bag P having the lateral seal FS is cut at the substantially intermediate portion of the lateral seal FS by the cutter mechanism 7 being driven by the drive means M4 to rotate one of the opposed cutter blades. In a continuous state, the packaging bags P filled with the contents W are separated one by one 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 11B is 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 filling amount 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. In which the filling amount at the initial driving is increased by increasing the rotational speed of the driving means M3 comprising a servo motor that drives the pump 6B so that the filling amount is increased with respect to the normal filling amount. It is. 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 filling amount of the contents W by the filling mechanism 6 is set to a normal value until a predetermined time t1 has elapsed since the filling start of the filling and packaging machine, as shown in FIG. When setting via the control means 9 so that the filling amount is increased with respect to the filling amount, the filling amount of the contents W is gradually suppressed via the control means 9 so as to match the normal filling amount. By setting it, the turbulent flow of the contents at the time of filling can be reduced by increasing the filling amount at the initial stage and gradually reducing it to the normal filling amount while compensating for the shortage of the filling amount quickly. Can be suppressed and stable It is possible to perform the filling operation and increase the filling amount at the start of operation (at the start of filling) of the packaging bag P which has been handled as a defective product until now, that is, the packaging bag P which has been short of the filling amount. By making up to the normal filling amount, it becomes possible to commercialize as a non-defective product, thereby reducing the number of defective products and providing a highly productive filling and packaging machine and its control method. it can.

  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 control numerically so that the filling amount of the content W by the filling mechanism 6 is increased with respect to the normal filling amount at the start of filling of the filling and packaging machine. As a means for gradually suppressing the amount to match the normal filling amount, as shown in the control timing of the other embodiment of FIG. However, it is possible to set so as to draw a parabola or to reduce the filling amount roughly in steps.

  In the filling and packaging machine according to the present invention, the vertical sealing mechanism 4 and the horizontal sealing mechanism 5 form the packaging bag P by four-way sealing. However, the vertical sealing member 5B of the vertical sealing mechanism 4 is used as the film of the packaging bag P. The same effect can be obtained even in a three-side seal type that is installed on one side that is an overlapping portion of F and heat-sealed. In the embodiment of the present invention, a rotation mechanism is used as a drive unit of the cutter mechanism 7. However, it is also possible to use a reciprocating cutter mechanism, and the vertical seal mechanism 4 and the horizontal seal mechanism 5 have been described using a rotary roll type seal device as an example. Vertically composed of a seal device that reciprocates and heat-seals a pair of seal members from the outside or a box motion type seal device It is also possible to apply to the filling and packaging machine.

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 vertically-sealed mechanism that vertically seals the continuously transported film along the longitudinal direction of the film while being sandwiched by a pair of vertically-sealing members, and the contents are filled into a cylindrical film that is vertically sealed by this vertically-sealing mechanism. And a horizontal seal at a predetermined interval while feeding the cylindrical film and sandwiching the portions on the bottom side and the bag mouth side of the film with a horizontal seal member that forms a pair along the width direction of the film. A filling and packaging machine control method comprising: a lateral seal mechanism, wherein the filling amount of the contents by the filling mechanism is increased with respect to a normal filling amount at the start of filling of the filling and packaging machine. A control method for a filling and packaging machine, wherein the control method is set through a control means.   Based on production conditions such as the transfer speed of the film and the filling amount of the content, the filling amount of the content by the filling mechanism is increased with respect to the normal filling amount by an operator input. 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 and packaging machine according to claim 1, wherein at the start of filling by the filling mechanism, the filling amount of the contents is set to be gradually suppressed to match a normal filling amount. Control method.   A vertically-sealed mechanism that vertically seals the continuously transported film along the longitudinal direction of the film while being sandwiched by a pair of vertically-sealing members, and the contents are filled into a cylindrical film that is vertically sealed by this vertically-sealing mechanism. And a horizontal seal at a predetermined interval while feeding the cylindrical film and sandwiching the portions on the bottom side and the bag mouth side of the film with a horizontal seal member that forms a pair along the width direction of the film. A filling and packaging machine comprising a horizontal sealing mechanism, wherein the filling amount of the contents by the filling mechanism is increased from the normal filling amount at the start of filling of the filling and packaging machine. A filling and packaging machine characterized in that it is set via a control means.   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 filling of contents by the filling mechanism based on the production conditions set by the setting means 5. The filling and packaging machine according to claim 4, wherein the filling and packaging machine is set through the control means so that the amount is increased with respect to a normal filling amount.   6. The apparatus according to claim 4 or 5, wherein when the filling by the filling mechanism is started, the filling amount of the contents is gradually suppressed to be set to a normal filling amount. Filling and packaging machine as described in

Images