JP3748469B2 - Multiple automatic packaging machine with automatic cutting position adjustment function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of an automatic packaging machine that automatically and variously seals various materials to be packaged using a packaging film (packaging material). The present invention relates to a multiple automatic packaging machine having a function of automatically adjusting a cutting position of a packaged product by a cutter to a predetermined position.
[0002]
[Prior art]
For example, in a conventional automatic packaging machine as described in Japanese Utility Model Publication No. 58-54327, when a pair of left and right horizontal sealers are closed and a horizontal seal is made, the inside of the package film sealed in a bag shape is used. The filling device fills the material to be packaged, and then the left and right horizontal sealers move downward by one pack while performing horizontal sealing, and draws out the packaging film from the supply roll side by one pack. The left and right horizontal sealers are lifted and returned to the start position while opening the left and right horizontal seals, and then the horizontal seal is performed again to seal the mouth of the seal bag, and the cutter cuts the central line portion of the horizontal seal up and down. Thus, one process of automatic packaging is completed, and this process is repeated continuously.
[0003]
FIG. 2 shows an example of a packaged product P automatically packaged by the automatic packaging machine configured as described above. S1 is a vertical seal portion thereof, and S2 and S3 are upper and lower horizontal seals cut by a cutter. The part L is the length size of the packaged product P. When the size L is changed, it is necessary to adjust the vertical distance of the horizontal sealer according to the size.
[0004]
However, in the conventional automatic packaging machine, it is necessary to move the horizontal sealer part up and down using a rotating crank mechanism or to adjust the operation timing of the horizontal sealer using a rotating gear differential or a timing setting cam. There is a problem that the operation is time consuming and laborious and difficult to handle.
[0005]
Therefore, as seen in the application of Japanese Patent Application No. 8-106305, the present applicant changes the bag size and changes the filling timing of the material to be packaged in accordance with the size change according to a preset program. We have developed an automatic packaging machine equipped with an automatic control function that is devised so that it can be done with a single touch.
[0006]
According to the above automatic packaging machine, the program data set for each size is called by key-in the size number of the packaged product, and the operation timing of the filling device and the vertical drive that moves the horizontal sealer up and down according to this program data The rotational speed of the motor is automatically adjusted so that a packaging product P having a predetermined length L filled with a predetermined amount of packaging material can be automatically packaged.
[0007]
[Problems to be solved by the invention]
However, the conventional automatic packaging machine described in the application of the above-mentioned Japanese Patent Application No. 8-106305 can program-control the operation timing of the cutter in the same manner as other filling devices and horizontal sealers. Since the vertical position of the cutter itself must be determined by manually adjusting the vertical movement, it takes time and effort to do so, and it is particularly troublesome. In the case of a multiple automatic packaging machine for automatic packaging, since the cutter itself is large and an operation motor is attached thereto, there is a problem that the whole is heavy and the movement adjustment work becomes more complicated.
[0008]
In addition, since the vertical movement position of the cutter is determined solely on the basis of the feeling, it is difficult to align the dimensions, and it is necessary to repeat the trial seal for a while and adjust the actual dimensions with a measure etc. Since the sheet cannot be cut correctly, there is a problem that a lot of materials to be packaged and packaging film are wasted due to these trial seals.
[0009]
Therefore, the technical problem of the present invention is that the cutter device of the multiple automatic packaging machine is configured to be movable up and down by the vertical drive means, so that the cutter moves up and down in accordance with the change in the bag size of the packaged product. It is an object of the present invention to provide a multiple automatic wrapping machine having an automatic cut position adjusting function that enables adjustment to be performed extremely easily and accurately without taking time and effort.
[0010]
[Means for Solving the Problems]
(1) In order to solve the above technical problem, a multiple automatic wrapping machine equipped with an automatic cut position adjusting function according to claim 1 of the present invention slits a wide film into a plurality of wrapping films. A forming device for forming the plurality of wrapping films into a cylindrical shape, a vertical sealing device and a horizontal sealing device for vertically sealing and laterally sealing the cylindrical film to form a packaging bag, and a covering within the packaging bag. A filling device for filling the packaging material (contents), a horizontal sealing device for sealing the filling port of the packaging bag filled with the material to be packaged (contents) and conveying the packaging bag downward, and this conveyance A multiple automatic wrapping machine comprising: a cutter device that cuts the central portion of the horizontal seal of the packaged bag into individual packaging bags; and a controller that controls the operation of each of the devices. Equipment, packaging bags A cutter driving means for separating the central portion of the horizontal seal; and a cutter vertical driving means for vertically moving the attachment position of the cutter device itself. The controller stores a control program for controlling the cutter driving means and the vertical driving means. And the control program calculates the cutter vertical drive control data in accordance with the preset vertical drive control data of the horizontal seal device and moves the cutter device to the cutting position of the packaging bag. Yes.
[0011]
(2) Further, in the multiple automatic packaging machine having the automatic cut position adjustment function according to claim 2 of the present invention, the control program has a large downward stroke amount of the preset horizontal sealing device. Calculates the cutter vertical drive control data according to this stroke amount, and if the preset downward stroke amount of the horizontal seal device is small, the cutter vertical drive control data is calculated small according to this stroke amount. Then, based on this control data, the cutter vertical drive means is operated to move the cutter device to the cutting position of the packaging bag, and then the cutter drive means is operated to separate the central portion of the horizontal seal of the packaging bag. Yes.
[0012]
According to the means described in (1) above, the vertical drive control data of the horizontal seal device set for each bag size is called at the start of operation, and the cutter vertical drive control data is calculated according to this control data. Since the cutter device can be moved to the cutting position of the packaging bag, it is possible to continuously wrap the packaged product of the determined bag size filled with the determined amount of the material to be packaged in a multiple manner. together, the vertical drive control data of the transverse seal device is determined, because the transverse sealer is always repeats up and down movement between the constant top dead center and the bottom dead center, the cutter on the basis of the set control data position, i.e., from the position of the center cut line in the transverse seals can also be necessarily calculated, and controls the cutter up and down driving means based on the calculated data, transverse sealing central bag size set cutter Automatically set in position, making it possible to cut a plurality of packaged products to the correct length.
[0013]
According to the means described in (2), the control program of the vertical drive unit and the cutter drive means for automatically adjusting the cutting position by controlling operation of the vertical drive means of the cutter, the amount that is determined in the packaged A plurality of packaged products of a predetermined bag size filled with a material can be automatically packaged continuously and in a multiplex manner while being cut at the center line of the transverse seal.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a multiple automatic packaging machine provided with the above-described automatic cutting position adjusting function according to the present invention will be described in detail with reference to the accompanying drawings.
[0015]
FIG. 1 is a perspective view showing an external appearance of a multiple automatic packaging machine having a cut position automatic adjustment function according to the present invention, and FIG. 3 is a configuration diagram illustrating the internal structure thereof. The reference numeral 1 generally indicates the body of a multiple automatic packaging machine, 2 is a hopper containing various packaging materials such as liquid, powder or viscous material, 2T is a supply pipe connected to the hopper 2 3R is a packing material filling device attached to the middle portion 2S of the supply pipe 2T, 3R is a piston shaft attached to a disk 3K rotated by a filling drive motor 3M, and 3T is this Although it is a piston valve attached to the tip of the piston shaft 3R, an air cylinder may be used as a driving means of the filling device 3 instead of the motor 3M.
[0016]
FIG. 3 shows only one supply pipe 2T with the filling device 3, but actually, a plurality of supply pipes 2T having the same structure are attached to the hopper 2 at equal intervals. The packaging material can be supplied to each supply pipe 2T.
[0017]
Reference numeral 4 denotes a forming member which winds each packaging film Fa to be wrapped around each supply pipe 2T. The feeding roller rotates and drives a wide printed packaging material FX from a winding roll F by a motor AM. The AS and AT are fed, the slitter BX slits the fed packaging material FX between the rollers 13 into a plurality of wrapping films Fa, and the plurality of slit wrapping films Fa. The above-described forming member 4 is wound around the supply pipe 2T so as to wrap around the supply pipe 2T, which is the same as the conventional apparatus disclosed in the Japanese Utility Model Publication No. 58-54327.
[0018]
Was generally indicated by reference numeral 5 is a longitudinal sealer device for longitudinally sealing the inner and outer end edges overlapping of each packaging film Fa which is wound around each of the supply pipes 2T, the vertical sealer device 5 vertically sealer drive A vertical sealer 5A attached to the tip of an arm 5R that is advanced and retracted by a cylinder 5S and a receiving plate 5B are configured so that each packaging film Fa that is sent can be sealed in a substantially cylindrical shape. .
[0019]
1 and FIG. 3 as well as in the plane cross-sectional view of FIG. 4, generally indicated by reference numeral 6 is a horizontal sealer device provided on the lower side of the vertical sealer device 5. This horizontal sealer device 6 is incorporated in a horizontal sealer frame 6a vertically attached to guide shafts 6G, 6G installed in the machine body 1 so as to be movable up and down, and relatively opened and closed inside the horizontal sealer frame 6a. The left and right horizontal sealers 6X and 6Y, the horizontal sealer drive cylinder 6S, and the arm 6R that moves forward and backward by the cylinder 6S to relatively open and close the left and right horizontal sealers 6X and 6Y. A horizontal seal S is applied to each packaging film Fa which is vertically sealed in a substantially cylindrical shape by the vertical sealer device 5, and the whole is sealed and formed into a plurality of bag bodies PT having an upper surface opening type.
[0020]
Moreover, the filling apparatus 3 described above, the same time as the lateral sealer device 6 performs the lateral seal, or immediately thereafter, from the lower end opening 2R of the packaged material in the hopper 2 through the supply pipe 2T predetermined amount The lateral sealer device 6 is configured to fill and supply the inside of the plurality of bag bodies PT. When the filling material 3 is filled by the filling device 3, the lateral sealers 6X and 6Y are inserted into the respective bags. While holding the body PT, it is moved downward by one pack by the horizontal sealer elevating means described below, and each packaging film Fa is drawn downward by one pack, and then the horizontal sealers 6X and 6Y are moved left and right. The mechanism is opened and unfastened, and returns to the original position before the horizontal seal in that state.
[0021]
In FIG. 3, the horizontal sealer lifting / lowering means generally designated by reference numeral 7 includes gear pulleys 7A and 7B having a gear structure rotatably mounted on the support plate 7T provided on one side of the horizontal sealer frame 6a. A fixed pulley 7C, 7D having the same gear structure rotatably attached to the upper and lower body 1 side portion of the moving range of the horizontal sealer frame 6a, a horizontal sealer vertical drive motor 7M for driving and rotating the one fixed pulley 7C, The upper and lower ends 8a and 8b are fixed to the upper and lower airframes 1 and the intermediate portion is passed over the upper and lower movable pulleys 7A and 7B, and then reversed up and down to the upper and lower fixed pulleys 7C and 7D. And the interlocking member 8 made of a timing belt or a chain having the structure described above.
[0022]
According to the horizontal sealer lifting / lowering means 7 configured as described above, when the drive motor 7M rotates one of the fixed pulleys 7C in the counterclockwise direction in FIG. 3, the interlocking member 8 formed of a timing belt or a chain is provided. When the horizontal sealer frame 6 is moved downward by the meshing action of the pulleys 7A to 7D and the constant gear 7C is rotated in the clockwise direction, the horizontal sealer frame 6 can be moved upward. By controlling the rotational speed of the drive motor 7M, it is possible to adjust the amount of vertical movement of the horizontal sealer frame 6, that is, the horizontal sealers 6X and 6Y, and the rotational speed of the above-described packaging material feeding drive motor AM is adjusted. The packaging material FX corresponding to the part pulled out by the horizontal sealer device 6 is controlled so as to be fed out from the winding roll F.
[0023]
Reference numeral 9 generally denotes a cutter device provided on the lower side of the horizontal sealer device 6. The cutter device 9 mounted on the cutter frame 9T is the horizontal sealer device 6 described above. The cutters 9A and 9B that cut the center line portion of the horizontal seal S both up and down, the cutter drive motor 9M as the cutter drive means , the tip end portion is attached to one cutter 9A, and the root end portion is attached to the cutter drive motor 9M. Alternatively, the cutter frame 9T having the entire cutter device 9 mounted thereon is constituted by a guide portion 9Ta formed at one end of the cutter shaft 9R. mechanism cutter vertical drive as the cutter up and down driving means through a 9Xa mode - be attached to the screw shaft 9X rotated by motor 9Z, vertical movement own according to the rotation of the screw shaft 9X It is configured.
[0024]
FIG. 2 shows the appearance of a stick-like packaged product P packed by the multiple automatic packaging machine having the above-described configuration. In the figure, S1 is a vertical seal portion, S2 and S3 are cutters 9A, As described above, the upper and lower horizontal seal portions, L both separated by 9B, indicate the length dimension (size) of the packaged product P. According to the automatic packaging machine of the present invention, this length dimension L In addition, stick-shaped packaged products P of various sizes having different filling amounts can be seal-molded, and the central line portion of the horizontal seal portion can be cut into two vertically, like the horizontal seal portions S2 and S3.
[0025]
In FIG. 1, reference numeral 16 denotes a keyboard provided on the machine body 1, which includes various keys such as a data read / write key for setting the size of the packaged product P, a mode switching key, and a data input key. A key is provided, and the display 15 provided on the machine 1 also has a structure in which the input program data, the set size number of the packaged product, or the number of various messages in operation are displayed. ing.
[0026]
FIG. 5 shows an example of the electrical configuration of the automatic packaging machine according to the present invention equipped with a microcomputer. In the figure, 10 is a central CPU of the control unit, and 11 is a system program. A memory composed of a ROM and a RAM for storing various input data, 13 is an interface circuit connected between the CPU 10 and the memory 11 via a bus 12, and 14 is for a motor connected to the interface circuit. The motor controller 14 includes the above-described packaging material feeding drive motor AM, filling device drive motor 3M, horizontal sealer vertical drive motor 7M, cutter drive motor 9M, and cutter vertical drive motor 9Z. (Both using a servo motor, for example) are connected.
[0027]
Further, the interface circuit 13 is connected to the cylinders 5S and 6S for driving the vertical sealer 5A and the horizontal sealer 6X, the display unit 15, the keyboard 16 and the LED 17, each of which is under the monitoring of the CPU 10. The mechanism is controlled and operated according to a program stored in the memory 11.
[0028]
FIG. 6 is a block diagram showing an example of a data memory input and set in the memory 11 using the keyboard 16. Here, each of the drive motors AM input and set in advance for each size number of each packaged product P is shown. , 3M, 7M, 9M, and 9Z are stored in large numbers, and the operation of each of the drive motors AM to 9Z is controlled according to the size number selected from the data memory to feed out a fixed amount of packaging material FX. However, it is programmed so that the packaged product P having a certain size (length L) filled with a certain amount of the material to be packaged can be continuously formed in a multiple manner.
[0029]
Next, FIG. 7 is a flowchart for explaining the processing procedure of the multiple automatic packing machine according to the present invention executed in accordance with the control program data stored in the memory 11 described above. When the switch (not shown) is turned on, the process proceeds to the next step S2, and the initial data, that is, the size number of the packaged product P is displayed on the display 15.
[0030]
In the next third step S3, it is determined whether or not the displayed size number is valid. If YES, the process proceeds to step S5. If NO, the process proceeds to step S4, and the desired size number is set by key operation. The data is input, and the process proceeds to the next step S5.
[0031]
In step S5, it is determined whether or not the data input of the size number has been completed. If completed, the process proceeds to the next step S6 to determine whether or not to issue an operation command to the controller 14 of each drive motor AM-9M. If YES, the process proceeds to the next step S7. If NO, the process waits until it is determined to be YES.
[0032]
In the next step S7, the CPU 10 calculates an operation pattern based on the determined data, and then in step S8, the calculated operation data is transferred to the controller 14 of each of the drive motors AM to 9Z. In S9, the operation start message and the set size number are displayed on the display unit 15. Then, the process proceeds to step S10, and the automatic operation of the multiple automatic packing machine is started according to the calculated operation data.
[0033]
In the automatic operation of the multiple automatic packaging machine, the amount of the packaging material FX to be drawn based on the rotation of the horizontal sealer vertical drive motor 7M described above, that is, the downward stroke amount of the horizontal sealers 6X and 6Y, and the cutter since the vertical movement position of the device 9 (the cutting position) is always in the correlation, as described in claim 1, the vertical drive control data of the lateral sealer vertical drive motor 7M is determined by the program setting, to At the same time, the vertical drive control data of the cutter vertical drive motor 9Z is calculated, and the cutter device 9 is moved to a predetermined cutting position so that the central line portion of the horizontal seal portion is accurately cut . .
[0034]
Thus, FIG. 8 is a block diagram showing the whole of the present invention.
[0035]
【The invention's effect】
As described above, according to the multiple automatic packaging machine equipped with the automatic cutting position adjustment function according to the present invention, the cutting position by the cutter is automatically changed when the bag size of the packaged product is changed. In addition, it is possible to automatically wrap a package product of the exact length dimension with the center line part of the horizontal seal cut correctly, and to manually move the heavy cutter whenever the bag size is changed. In addition, the number of trial seals to be performed every time it is changed can be reduced as much as possible, and the advantage that wasteful consumption of the material to be packaged and the packaging film (packaging material) can be prevented.
[Brief description of the drawings]
1 is a perspective view showing an appearance of a multiple-type automatic packaging machine which is an example of a multiple-type automatic packaging machine provided with a cutting position automatic adjustment function according to the present invention.
FIG. 2 is a perspective view of a packaged product seal-molded by a multiple automatic packaging machine according to the present invention.
FIG. 3 is a block diagram showing the inside of a multiple automatic packaging machine according to the present invention.
FIG. 4 is a plan sectional view of a horizontal sealer device portion.
FIG. 5 is a block diagram illustrating an electrical configuration of the present invention.
FIG. 6 is a configuration diagram showing a part of a data memory stored in a memory.
FIG. 7 is a flowchart illustrating a processing procedure for sealed packaging according to the present invention.
FIG. 8 is a block diagram illustrating the entirety of the present invention.
[Explanation of symbols]
1 Multiple automatic packaging machine body FX Packaging material Fa Packaging film P Packaging product S2, S3 Horizontal seal 3 Filling device 5 Vertical sealing device 6 Horizontal sealing device 9 Cutter device 9T Cutter frame 9A, 9B Cutter 9M Cutter drive motor 9X Screw shaft 9Z Cutter vertical drive motor 10 CPU
11 Memory 14 Motor controller

Claims (2)

A forming device for slitting a wide film into a plurality of wrapping films and forming the plurality of wrapping films into a cylindrical shape,
A vertical seal device and a horizontal seal device for making a packaging bag by vertically sealing and horizontally sealing the cylindrical film;
A filling device for filling the packaging bag with the material to be packaged (contents);
A lateral sealing device that seals the filling port of the packaging bag filled with the material to be packaged (contents) and conveys the packaging bag downward;
A cutter device that cuts the central portion of the horizontal seal of the conveyed packaging bag to make an individual packaging bag,
A multiple automatic packaging machine comprising a controller for controlling the operation of each of the above devices,
The cutter device has a cutter driving means for cutting a horizontal seal central portion of the packaging bag, and a cutter vertical driving means for moving the attachment position of the cutter device itself up and down.
The controller stores a control program for controlling the cutter driving means and the vertical driving means in a memory,
The control program calculates the cutter vertical drive control data in accordance with preset vertical drive control data of the horizontal seal device, and moves the cutter device to the cutting position of the packaging bag. Multiple automatic wrapping machine with adjustment function . The control program, when the amount of the downward stroke of the preset horizontal seal device is large, greatly calculates the cutter vertical drive control data according to the stroke amount,
When the stroke amount to the lower side of the preset horizontal sealing device is small, the cutter vertical drive control data is calculated to be small according to this stroke amount,
The cutter vertical driving means is operated based on the control data to move the cutter device to the cutting position of the packaging bag, and then the cutter driving means is operated to separate the central portion of the horizontal seal of the packaging bag. A multiple automatic packaging machine provided with the automatic cutting position adjusting function according to Item 1 .

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