JP4357045B2 - Production condition determination equipment for filling and packaging machines - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a production condition determining apparatus for a filling and packaging machine that forms a film wound in a roll shape and fills the packaging bag with contents such as liquid, powder, or viscous substance.
[0002]
[Prior art]
As a filling and packaging machine for filling contents such as liquids, powders or viscous substances, for example, those disclosed in JP-A-1-153410, JP-A-2-4626, JP-A-2-32929, etc. There is. These filling and packaging machines have a machine base, and a pair of original web shafts are provided on the sides of the machine base, and the original film with the film wound around the original web shaft is held in a removable manner. A film guide section and a film folding section are provided at the top of the machine base, and a vertical seal mechanism, first and second horizontal seal mechanisms, and a cutter mechanism are provided on the front surface of the machine base from above. .
[0003]
The filling and packaging machine draws the film from the original film by the vertical seal mechanism, guides the film to the film folding part through the film guide part, and guides the film in the longitudinal direction by a guide provided at the film folding part. The folded end portions of the film are overlapped with each other by a pair of vertical heat seal rolls facing the vertical seal mechanism, heat sealed and sent out, and the film is formed into a cylindrical shape by the vertical seal. The film is laterally sealed by a pair of transverse heat seal rolls opposed to the transverse seal mechanism, and the bottom is formed by the transverse seal, and thereby the film formed into a bottomed cylindrical shape is filled by the filling nozzle of the filling mechanism. For example, the contents such as foodstuffs are filled, and further the film is fed and the film is again fed by the transverse heat sealing roll of the first transverse sealing mechanism. The side of the bag mouth is laterally sealed to seal the contents, and the lateral seal portion is further pressed again (pressure sealing) by the lateral roll of the second lateral seal mechanism, and then the lateral seal portion is rotated. A packaging bag is obtained by cutting with the cutter mechanism.
[0004]
[Problems to be solved by the invention]
Such a filling and packaging machine has the above-mentioned length, the film material and film width constituting the packaging bag, the kind of film such as the material and temperature of the filling material, the content type such as temperature, the production speed of the packaging bag, etc. It is necessary to change the production conditions in the packaging bag, such as the sealing pressure when the film is pressed by the horizontal sealing mechanism, the sealing temperature of the film by the vertical and horizontal sealing mechanisms, and the tension value of the film delivered from the original film. Don't be. Since the setting of the production condition requires many years of intuition and experience by the operator of the filling and packaging machine, if the production condition is set by an operator with little experience, the work is complicated and the setup is changed. If time is required for this, or if the production conditions are set incorrectly, the sealing state in the packaging bag becomes insufficient, the yield in the packaging bag is lowered, and the productivity in the filling and packaging machine cannot be improved. Have.
[0005]
Accordingly, the present invention provides a production condition determination device for a filling and packaging machine capable of keeping the film sealing state always good and facilitating the change-over operation and improving the productivity while paying attention to the above problems. It is.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention forms a film into a cylindrical shape by vertically sealing by a vertical sealing mechanism comprising a pair of vertical sealing rolls that rotate a film that is continuously transported from the original film. A production condition determination device for a filling and packaging machine that obtains a packaging bag by laterally sealing with a lateral sealing mechanism composed of a pair of rotating lateral seal rolls while filling a formed film with contents of a fluid substance. , Product data input means for inputting product data relating to the packaging bag, storage means for storing a predetermined calculation formula for determining production conditions for the packaging bag, and product data input by the product data input means. And control means for determining production condition data of the packaging bag by the calculation formula.
[0007]
The product type data includes at least one of a film type, a content type, a content temperature, a film width, a film feed speed, and a filling amount per packaging bag.
[0008]
Further, the control means uses at least one of a film pressing pressure in the vertical and horizontal sealing mechanisms, a heat seal temperature in the vertical and horizontal sealing mechanisms, and a tension value given to the film as the production condition data, and according to the product data. Thus, the production condition data is determined.
[0009]
Further, the storage unit is provided with a coefficient or a calculation formula stored in association with the product type data.
[0010]
Further, the calculation data or the coefficient is changed by the product type data input means.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a production condition determination device for a filling and packaging machine according to an embodiment of the present invention will be described with reference to the accompanying drawings.
[0012]
In FIG. 1, the filling and packaging machine has a machine base 1, a raw fabric shaft 2 is provided on a side of the machine base 1, and a film raw fabric 3 having a film F wound around the raw fabric shaft 2 is detached. The film guide unit 4 and the film turn-back unit 5 are disposed at the upper part of the machine base 1 while being exchangeably held. From the upper side of the front part of the machine base 1, the vertical seal mechanism 6 and the first and second horizontal seals are provided. Mechanisms 7 and 8 and a cutter mechanism 9 are provided.
[0013]
The film F in such a filling and packaging machine is drawn out from the original film 3 by a vertical seal mechanism 6 serving as a film F feeding mechanism, led out to the film folding section 5 through the film guide section 4, and provided in the film folding section 5. The folded back guide 10 causes the film F to be folded in two along the longitudinal direction, and the folded end portions of the film F are exchanged by a pair of opposed longitudinal heat seal rolls 6a of the longitudinal seal mechanism 6, that is, the side end seal portion of the film F. FH is heat-sealed and sent out.
[0014]
The film F in which the side end seal portion FH is formed by the vertical seal mechanism 6 is heat-sealed in the horizontal direction by a pair of opposed horizontal heat seal rolls 7a of the first horizontal seal mechanism 7, and is packaged by the horizontal seal portion FS. A bottom portion to be FW is formed. The film F formed in the bottomed cylindrical shape is filled with the contents made of a liquid (fluid substance) such as sauce or soy sauce by the filling nozzle 11a of the filling mechanism 11, and the film F is further fed again. The bag mouth portion of the film F is heat-sealed in the horizontal direction by the horizontal heat sealing roll 7a of the first horizontal sealing mechanism 7, and the contents are sealed. And the film F provided with the horizontal seal | sticker part FS location heat-sealed in the horizontal direction up and down of this content is repressing pressure for shaping | molding a seal shape with a pair of horizontal seal roll 8a of the 2nd horizontal seal mechanism 8. Is done.
[0015]
Subsequently, the individual packaging bags FW are obtained by cutting the intermediate portion of the lateral seal portions FS of the continuous packaging bags FW with the cutter mechanism 9.
[0016]
Next, the production condition determination apparatus in the filling and packaging machine will be described with reference to FIG.
[0017]
In FIG. 2, the production condition determining device 20 is a product data input means 21 for inputting product data to be described later, and a control means for determining production condition data to be described later according to product data input by the product data input means 21. 22 and a storage unit 23 made of, for example, E ↑ 2PROM, which stores a calculation formula (to be described later) for determining the production condition data in a nonvolatile manner.
[0018]
The product type data input means 21 can be composed of a touch panel, a keyboard and the like. In the embodiment of the present invention, for example, a touch panel capable of switching the screen by pressing an operation switch on the screen or inputting the product data is configured as product data setting means.
[0019]
The product type data input means 21 constitutes a screen as shown in FIGS. FIG. 3 shows a product type data setting screen A. The product type data in the filling and packaging machine includes a film type a1, a content type a2 and a packaging condition a3.
[0020]
The film type a1 is made of nylon, PET (polyethylene terephthalate), aluminum foil or the like as a base film, and the type of film F is determined by the type and thickness of the laminate layer for these base films. Changeover switches XA-1 to XA-6 are provided as film items of type a1.
[0021]
The kind of content a2 is divided from the viscosity of the content such as liquid, powder or viscous substance liquid and the material of the content. In the embodiment of the present invention, soy sauce, sauce, wasabi, etc. Has content items.
[0022]
The packaging condition a3 includes a seal pitch (horizontal seal interval), a production speed, a film width, a liquid temperature (the temperature of the contents), a filling amount per packaging bag, and a film feed speed, and is set in the packaging condition a3. The data includes seal pitch, production speed, film width, liquid temperature, filling amount per packaging bag, and the film feed speed is calculated based on the seal pitch and production speed. In setting the packaging condition a3, a packaging condition item is selected, and each packaging condition item is set by an input operation of the numeric keypad a4. Further, after the setting of each packaging condition item is completed, production condition data is calculated by a calculation formula described later by pressing the calculation key a5.
[0023]
FIG. 4 shows a production condition data screen B showing the calculation result of each production condition data after setting the above-described product type data. The production condition data in the filling and packaging machine includes the vertical roll temperature and the vertical roll pressing pressure. (Left), vertical roll pressing pressure (right), horizontal roll temperature, horizontal roll pressing pressure (left), horizontal roll pressing pressure (right), and powder brake provided on the raw fabric shaft 2 on which the film raw fabric 3 is disposed The tension value (film tension value) given to the film F is controlled by controlling the braking means (not shown).
[0024]
The control means 22 connects a ROM 22a storing a program for determining the production condition data, a CPU 22b for executing the program, a RAM 22c for temporarily storing calculation results, and a product data input means 21. The input / output interface 22d is connected to each other by a bus 22e. The control means 22 in the embodiment of the present invention stores production condition data by storing programs for controlling each control mechanism in the filling and packaging machine such as the vertical seal mechanism 6 and the first horizontal seal mechanism 7 in the ROM 22a. It can also be used as a control means for determining.
[0025]
The memory | storage part 23 has several calculation formulas mentioned later for determining each said appropriate production condition data in the packaging bag FW. The plurality of calculation formulas stored in the storage unit 23 are the film pressing pressure in the vertical sealing mechanism 6 and the first horizontal sealing mechanism 7, the heat sealing temperature in the vertical sealing mechanism 6 and the first horizontal sealing mechanism 7, A plurality of calculation formulas for determining the film tension value and a plurality of coefficients in the calculation formula are stored. In the embodiment of the present invention, the second lateral seal mechanism 8 is for re-pressing the lateral seal portion FS laterally sealed by the first lateral seal mechanism 7, and the production conditions are determined according to the product type data. The pressing pressure used as data is not variable.
[0026]
Next, each production condition data determined according to the product type data will be described with reference to FIG.
[0027]
The temperature of the heat seal roll 7a in the vertical seal mechanism 7, that is, the vertical roll temperature (production condition data Y1) for vertically sealing the film F depends on the type of film and the film speed in the product data. It is determined by the following formula.
Y1 = f (X1)
= A1 · X1 + b1
A1 and b1 are coefficients (a1 = a11, a12, a13... A1n, b1 = b11, b12, b13... B1n) switched by the control means 22 according to the type of film, and X1 is a film. It is a variable that varies depending on the speed.
[0028]
The pressing force of the film F in the vertical sealing mechanism 7 is pressed by pressing means having independent left and right pneumatic regulators. The vertical sealing pressure (left) (production condition data Y2) and the vertical sealing pressure (Right) (Production condition data Y3) depends on the type of film and the film speed in the product type data, and is determined by the following equation, for example.
Y2 = f (X2)
= A2 / X2
Y3 = f (X3)
= A3 ・ X3
A2 and a3 are coefficients (a2 = a21, a22, a23... A2n, a3 = a31, a32, a33... A3n) switched by the control means 22 according to the type of film, and X2 and X3 Is a variable that varies according to the film speed. In the case of a three-side seal as in the filling and packaging machine according to the embodiment of the present invention, the coefficients a2 and a3 are set so that the pressing force of the vertical seal is higher than the right side on the side where the film is sandwiched, that is, the left side. Is set.
[0029]
The temperature of the heat seal roll 7a in the first horizontal seal mechanism 7, that is, the horizontal roll temperature (production condition data Y4) for horizontally sealing the film F, is the film type, content type, film speed, It depends on the temperature and filling amount of the contents, and is determined by the following equation, for example.
Y4 = f (X4)
= A4 · X4 + b4
A4 and b4 are coefficients (a4 = a41, a42, a43... A4n, b4 = b41, b42) which are switched by the control means 22 in accordance with the type of film, the type of contents, the temperature of the contents and the filling amount. , B43... B4n), and X4 is a variable that varies according to the film speed.
[0030]
The pressing force of the film F in the first lateral seal mechanism 7 is pressed by a pressing member having left and right independent air pressure regulators. The lateral seal pressing pressure (left) (production condition data Y5) and the lateral pressure The seal pressing pressure (right) (production condition data Y6) depends on the type of film and the film width in the product type data, and is determined by the following equation, for example.
Y5 = f (X5)
= A5 · X5
Y6 = f (X6)
= A6 · X6
A5 and a6 are coefficients (a5 = a51, a52, a53... A5n, a6 = a61, a62, a63... A6n) that are switched by the control means 22 according to the type of film, and X5 and X6 Is a variable that varies according to the film width. In the filling and packaging machine according to the embodiment of the present invention, the film F sealed by the first lateral seal mechanism 7 is offset to the left with respect to the center of the heat seal roll 7a in the first lateral seal mechanism 7. Depending on how the film F flows depending on whether it flows depending on the state of flow, offset to the right side, or substantially at the center position, the pressing force of the lateral seal is “left> right” or “left <right”. ”Or“ Left = Right ”, the coefficients a5 and a6 are set. In addition, the flow method of the film F with respect to the heat seal roll 7a is peculiar by the mechanical structure in a filling and packaging machine, and is not necessarily constant.
[0031]
The film tension value (production condition data Y7) given by the original fabric axis 2 depends on the film type, film width and filling amount in the product data, and is determined by the following formula, for example. is there.
Y7 = f (X7)
= A7 ・ X7 + b7
Here, a7 and b7 are coefficients (a7 = a71, a72, a73... A7n, b7 = b71, b72, b73... B7n) that are switched by the control means in accordance with the type and filling amount of the film, and X7 Is a variable that varies according to the film width.
[0032]
Each of the above-described calculation formulas is an example for obtaining production condition data corresponding to each kind of product data, and experimentally obtains the relevance of appropriate production condition data to various kinds of product data input conditions. It is desirable to obtain a calculation formula for obtaining more appropriate production condition data by comparing the data of For example, regarding the roll temperature of the horizontal seal mechanism 7 which is production condition data, the variable X in the calculation formula may be related to a plurality of product data (Y = f (X1, X2, X3 ...)).
[0033]
Next, a processing method for determining production condition data in the control means 22 will be described with reference to FIG.
[0034]
The control means 22 selects “film item in film type a1” and “content item in content type a2” and “packaging condition item in packaging condition a3” on the kind data input screen in the kind data input means 21. It is determined whether or not setting has been made (steps S1 to S3). If it is determined that selection and setting have been made, whether or not the calculation key a5 is input is confirmed (step S4), and the calculation key a5 is input. In each calculation formula for determining each production condition data stored in association with the type data of the selected film type a1, content type a2 and packaging condition a3 Each coefficient is read from the storage unit 23, each coefficient of each calculation formula for calculating each production condition data adapted to the product data is changed, and each coefficient is calculated. Determining the formula (Step S5).
[0035]
Next, the control means 22 uses each calculation formula in which each coefficient is changed, and the vertical roll temperature, vertical roll pressing pressure (left), vertical roll pressing pressure (right), horizontal roll temperature, horizontal roll pressing pressure ( Left), production condition data of horizontal roll pressing pressure (right) and film tension value are calculated (step S6), and the calculated production condition data is used to heat the vertical and horizontal sealing mechanisms 6 and 7 in the filling and packaging machine. Output to each control mechanism such as the pressing means of the vertical and horizontal sealing mechanisms 6, 7 and the braking means provided on the raw material shaft 2, so that each production condition data of the best packaging bag FW corresponding to the product type data ( Each production condition data) according to the packaging form of the packaging bag is determined (step S7). The tension value determined by the calculation formula is a coefficient in the calculation formula for determining the braking force (braking action) of the braking means provided on the raw fabric shaft 2, and the calculated tension value Is kept constant during the operation of the filling and packaging machine, but the braking force is changed by the change in the original fabric diameter of the film F.
[0036]
In accordance with the product data set by the product data input device 21, the control device 22 in the production condition determination device 20 includes the heat seal temperature in the vertical seal mechanism 6 and the first horizontal seal mechanism 7, the vertical seal mechanism 6 and Each production condition data of the film pressing pressure and the film tension value in the first lateral seal mechanism 7 is read out as a calculation formula for calculating each production condition data stored in the storage unit 23 in advance. The condition data is obtained by the respective calculation formulas, and the production condition data obtained by the calculation are used as the heating means of the vertical and horizontal sealing mechanisms 6 and 7 in the filling and packaging machine, the pressing means of the vertical and horizontal sealing mechanisms 6 and 7, and Each production condition data of the best packaging bag FW according to the product type data by outputting to each control mechanism such as braking means provided on the raw fabric shaft 2 Because it can be determined, it is possible to keep the sealing state in the packaging bag FW good.
[0037]
Further, the control means 22 associates each coefficient in each calculation formula with a combination of product type data and stores it in the storage unit 23, so that each coefficient in each calculation formula can be stored in the product data even when the product data is changed. It can be changed to an appropriate coefficient according to. Therefore, since the intuition and experience by the operator are not required as in the prior art, the setup change work is simplified, and the production condition data is not erroneously set. Therefore, the yield in the packaging bag FW is reduced. It becomes possible to improve productivity in a filling and packaging machine.
[0038]
In the embodiment of the present invention, vertical roll temperature, vertical roll pressing pressure (left), vertical roll pressing pressure (right), horizontal roll temperature, horizontal roll pressing pressure (left), horizontal roll pressing pressure (right) and The film tension value is used as the production condition data. Besides these, for example, the film tension value (pre-tension value) at the start of the filling and packaging machine or the film F between the raw roll 3 and the film guide 4 can be used. The braking force (intermediate brake), etc. to be applied is added to the production condition data, the coefficient is associated with the combination of the product data, and the film tension value and the braking force are calculated by a calculation formula according to the product data described above. good.
[0039]
In the embodiment of the present invention, the vertical roll temperature, the vertical roll pressure (left), the vertical roll pressure (right), the horizontal roll temperature, the horizontal roll pressure (left), the horizontal roll pressure (right) and All the production condition data of the film tension value is calculated by each calculation formula. However, in the production condition determination apparatus according to the present invention, for example, the vertical and horizontal directions that require the most intuition and experience by the operator are required. Only the production condition data of the vertical and horizontal roll temperatures in the sealing mechanisms 6 and 7 may be set, and the present invention is not limited to the above-described embodiment.
[0040]
Further, in the embodiment of the present invention, coefficients in each calculation formula for determining each production condition data are associated by a combination of product type data, and a plurality of coefficients are stored in the storage unit 23. However, the production condition data Depending on the production conditions where there is an allowable range, for example, only a single coefficient that obtains the approximate center data of the allowable width is prepared without preparing the coefficient used in the calculation formula for obtaining the production condition data for each combination of product type data. Furthermore, when calculating one piece of production condition data, a plurality of calculation formulas having different coefficients may be associated with each other according to product type data and stored in the storage unit 23.
[0041]
The product data input means 21 in the embodiment of the present invention is used to select and set product data. However, the product data input means 21 can change the calculation formula and the coefficient. Thus, fine adjustment in determining each production condition data is possible, and each production condition data for producing the packaging bag FW in the filling and packaging machine can be determined more satisfactorily.
[0042]
In the embodiment of the present invention, the packaging condition a3 as the product data is set by the input operation of the numeric keypad a4 on the product data input screen A constituting the product data input means 21, but for example, the liquid temperature and the film width are set. For product type data that can be automatically detected by such a liquid temperature sensor or a width measuring device, the troublesome setting operation can be eliminated by using the detected data as it is for the packaging condition a3. In addition, by using the liquid temperature sensor, for example, by automatically monitoring the liquid temperature set by monitoring the influence of the outside air temperature, etc., and automatically adjusting the production condition data depending on the liquid temperature, the packaging bag It becomes possible to keep the sealing state in the FW even better.
[0043]
The storage unit 23 according to the embodiment of the present invention is provided separately from the control unit 22 and the product data input unit 21. For example, the control unit and the storage unit are provided on the touch panel serving as the product data setting unit. In the storage unit provided in the touch panel, each calculation formula and each coefficient for obtaining each production condition data as described above are stored, and each production condition data is stored by the control means provided in the touch panel. It may be what you want.
[0044]
【The invention's effect】
In the present invention, the film is formed into a cylindrical shape by a vertical sealing mechanism comprising a pair of vertical sealing rolls that rotate the film continuously transferred from the original film, and the fluidity is formed in the cylindrical film. With respect to a production condition determination device in a filling and packaging machine that obtains a packaging bag by laterally sealing with a lateral sealing mechanism composed of a pair of rotating lateral sealing rolls while filling the contents made of the substance, it is input by the product type data input means Since the production condition data of the packaging bag can be determined by the calculation formula stored in the storage unit based on the product type data, the seal state in the packaging bag is always kept good, and the intuition and experience by the operator are obtained. It is not necessary and simplifies the setup change work, and the setting of production condition data is not mistakenly set. From, to improve the yield in the packaging bag, it is possible to improve the productivity of the filling and packaging machine.
[Brief description of the drawings]
FIG. 1 is a front view showing a filling and packaging machine according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a production condition determining apparatus for the filling and packaging machine according to the embodiment.
FIG. 3 is a diagram showing product type data input means according to the embodiment;
FIG. 4 is a diagram showing product type data input means according to the embodiment;
FIG. 5 is a diagram showing a relationship between product type data and production condition data according to the embodiment;
FIG. 6 is a diagram showing a processing method of a control unit according to the embodiment;
[Explanation of symbols]
6 Vertical seal mechanism 7 First horizontal seal mechanism (horizontal seal mechanism)
20 Production Condition Determination Device 21 Product Data Input Unit 22 Control Unit 23 Storage Unit F Film

Claims (5)

The film is formed into a cylindrical shape by a vertical sealing mechanism comprising a pair of vertical sealing rolls that rotate the film continuously transferred from the original film, and the film is formed into a cylindrical shape. A production condition determination device for a filling and packaging machine that obtains a packaging bag by laterally sealing with a lateral sealing mechanism consisting of a pair of rotating lateral sealing rolls while filling an object,
Product data input means for inputting product data related to the packaging bag;
Storage means for storing a predetermined calculation formula for determining production conditions of the packaging bag;
Control means for determining production condition data of the packaging bag by the calculation formula based on the kind data inputted by the kind data input means;
A production condition determining device for a filling and packaging machine, comprising: The product type data includes at least one of a film type, a content type, a content temperature, a film width, a film feed speed, and a filling amount per packaging bag. Production condition determination equipment for filling and packaging machines. The control means uses, as the production condition data, at least one of a film pressing pressure in the vertical and horizontal sealing mechanisms, a heat seal temperature in the vertical and horizontal sealing mechanisms, and a tension value to be given to the film, and according to the product data, 3. The production condition determining apparatus for a filling and packaging machine according to claim 1, wherein production condition data is determined. 2. The production condition determination device for a filling and packaging machine according to claim 1, wherein the storage unit includes a coefficient or a calculation formula stored in association with the product type data. The production condition determination apparatus for a filling and packaging machine according to claim 1 or 4, wherein the calculation formula or the coefficient is changed by the product type data input means.

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