JP3347996B2 - Packing material filling device in automatic packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an automatic packaging machine for continuously sealing and packing various kinds of materials to be packaged (filling materials). liquid, viscous-like, or, to a the packaged material filling apparatus in an automatic packaging machine for filling a granule form of the packaging material.

[0002]

2. Description of the Related Art Automatic packaging machines include, for example, Japanese Utility Model Publication No. Sho 61-3
As disclosed in, for example, Japanese Patent Publication No. 1925 and the like, a roll-type sealer that seals and wraps a roll-formed sealer while pressing and rotating the sealer is disclosed in Japanese Utility Model Publication No. 58-34002 and Japanese Utility Model Publication No. 58-54327. As described above, there is a plate type (bar type) in which a sealer formed in a plate shape (bar shape) is sealed and packed by pressing and pressing.

[0003] Among these packaging machines, the latter plate-type ones are particularly disclosed in each of the above-mentioned publications, in which the horizontal sealer is extended by the length of the bag while the packaging film is horizontally sealed. An approximately box-shaped operation in which the lowering operation pulls out the packaging film by one bag from the packaging material roll side, then opens the horizontal sealer in the horizontal direction to release the pressure seal, and then moves upward to the original horizontal seal start position. Is continuously repeated, so that the sealing bag can be continuously packaged.

[0004]

However, the conventional plate-type automatic wrapping machine constructed as described above, as disclosed in each of the above-mentioned publications, includes a packing material (filling material) in a sealing bag. ) Is fixed, so that the horizontal sealer can be moved downward by, for example,
When the packaging film is pulled down from the state shown in FIG. 1 to the state shown in FIG. 4 of JP-A-34002, the filling nozzle touches the inner surface of the packaging film, and the material to be packaged at the nozzle tip opening or the like is removed from the packaging film. In some cases, the seal may be attached to the inner surface, particularly when the inner surface to which the material to be packaged is attached is a film surface to be subjected to horizontal sealing next, the horizontal seal is performed after the material to be packaged is attached. As a result, the seal strength of the horizontal seal is affected, resulting in poor sealing (seal leakage).
There was a problem that caused.

Further, in the above-mentioned conventional plate type automatic packaging machine, when the horizontal sealer moves down and the packaging film is pulled out, the packaging film is pulled downward and the thickness of the sealing bag becomes thin due to the resistance. Therefore, there is also a problem that the material to be packed filled in the seal bag is pushed up and the shape of the seal bag cannot be finished to an expected thickness (a well-balanced thickness in the vertical direction). Was.

Accordingly, a technical problem of the present invention is that the horizontal sealer is moved down by the length of the bag while holding the packaging film and the packaging film is drawn out, and then the horizontal sealer is opened to return to the original horizontal sealing start position. When the packing material is continuously sealed and packaged by using an automatic packaging machine of a type that performs a substantially box-shaped movement for ascending movement, when the horizontal sealer pulls out the packaging film downward, the filling nozzle is used for the packaging film. In addition to devising the inner surface so as not to be contaminated, the lower end side of the seal bag is provided with a swelling so as to finish it to an expected thickness.

[0007]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

[0008] A step of sealing the packaging film drawn from the packaging material roll into a bag shape by a vertical sealer and a horizontal sealer, and using a filling means and a filling nozzle inside the packaging film sealed in the bag shape by using a filling means and a filling nozzle. A step of filling the material, a step of lowering the horizontal sealer by the length of the bag while the packaging film is horizontally sealed, and drawing out the packaging film,
In the automatic packaging machine configured to perform the seal packaging by continuously repeating the step of opening the lowered horizontal sealer to the position before the original horizontal seal after the horizontal sealer is opened,

(1) An extendable or bendable flexible pipe portion is provided between a hopper for accommodating a material to be packaged and an upper end of the filling nozzle, and at least a tip end side of the filling nozzle is formed in a bag shape. The horizontal sealer is configured to descend and ascend following the descending movement and the ascending movement of the horizontal sealer while being inserted into the packaging film formed with the seal, and the filling timing of the packaging material by the filling means. At all times directly above the horizontal seal. (Claim 1)

According to the means of claim 1 described in the above (1), the filling nozzle for filling the material to be packaged moves up and down following the up and down movement of the horizontal sealer inside the seal bag,
Since the filling of the material to be packed by the filling means is always performed immediately above the horizontal seal, the material to be packaged attached to the tip end of the filling nozzle or the like is used to seal the inner surface of the packaging film, especially the horizontal seal. Since the inner surface does not become dirty, the material to be wrapped or the like does not bite into the horizontal seal and affect the seal strength or cause poor sealing. To

Further, according to the means (1), since the filling of the material to be packed from the filling nozzle always starts immediately above the horizontal seal, the material to be packaged is also sufficiently filled in the lower portion of the seal bag. Thus, it is possible to finish the shape of the seal bag into a well-balanced thickness as expected.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic packaging machine according to the present invention will be described.
To explain with embodiments to the accompanying drawings in the packaged material filling apparatus in FIG. 1 is a perspective view showing an appearance of a multiple-type automatic packaging machine provided with the package item material filling apparatus according to the present invention, FIG. Numeral 3 is a structural view for explaining the internal structure. In these drawings, the reference numeral 1 generally designates the body of a multiple automatic packaging machine, and 2 is a liquid, powder or viscous body. 2T indicates a supply pipe connected to the hopper 2, and 3 indicates a packing material filling device (filling) attached to an intermediate portion 2S of the supply pipe 2T. 3R is a filling drive motor 3M
Piston shaft mounted on a disk 3K rotated by 3
T is a piston valve attached to the tip of the piston shaft 3R, but an air cylinder may be used instead of the motor 3M as a driving means of the filling device 3.

Although FIG. 3 shows only one supply pipe 2T with the filling device 3, actually, as shown in FIG. 1 of Japanese Utility Model Publication No. 58-54327 described above, FIG.
A plurality of supply pipes 2T having the same structure are attached to the hopper 2 at equal intervals and are configured so that the material to be packaged can be uniformly supplied to each supply pipe 2T.

Reference numeral 2X denotes a flexible pipe section which is connected to the lower side of each of the supply pipes 2T and is configured to be stretchable or bendable.
R is a filling nozzle connected to the lower side of the flexible pipe portion 2X, 2R 'is a nozzle tip port thereof, and a flexible pipe portion connected to the lower side from each supply pipe 2T by the filling device 3 described above. The material to be wrapped sent out to the 2X side is passed through a filling nozzle 2R from its tip end port 2R 'to form a bag P to be described later.
It is configured to fill the inside of T.

Reference numeral 2Z denotes a slide plate on which the upper end of the filling nozzle 2R is mounted and supported, and 2M slides the slide plate 2Z up and down to expand or contract or flex the flexible pipe portion 2X. With the filling nozzle 2R
It is a nozzle up / down drive motor capable of moving itself up and down in the vertical axis direction, and the specific configuration of the up / down movement means of the slide plate 2Z will be described later.

Reference numeral 4 denotes each package film F sent.
a is a forming member that is wound around the above-mentioned filling nozzle 2R so as to wrap around the filling nozzle 2R, and a wide printed packaging material FX is fed from a packaging material roll F by feeding rollers AS and AT that are driven and rotated by a motor AM. This fed packaging material F
The point that the slitter BX slits X into a plurality of wrapping films Fa between the rollers 13 and the wrapping film Fa of the slits is wrapped around the supply pipe 2T by the forming member 4 described above. The point of winding is the same as that of the conventional apparatus disclosed in Japanese Utility Model Publication No. 58-54327.

Reference numeral 5 generally indicates a known vertical sealer device for vertically sealing the overlapping inner and outer edges of the packaging film Fa wound around each filling nozzle 2R. The device 5 is composed of a vertical sealer 5A attached to the tip of an arm 5R that is advanced and retracted by a vertical sealer driving cylinder 5S, and a receiving plate 5B, so that the incoming packaging film Fa can be formed into a substantially cylindrical seal. Is configured.

In FIG. 1 and FIG. 3 described above, what is generally indicated by reference numeral 6 is a known horizontal sealer device provided on the lower side of the vertical sealer device 5. 6
Is a horizontal sealer frame 6a vertically movably mounted on guide shafts 6G, 6G vertically installed in the body 1, and left and right horizontal sealers incorporated in the horizontal sealer frame 6a so as to perform opening and closing relatively. 6X, 6Y, a lateral sealer driving cylinder 6S, and the left and right lateral sealers 6 are moved forward and backward by the cylinder 6S.
X and 6Y are relatively opened and closed, and the horizontal sealing S is performed on the packaging film Fa, which is vertically sealed in a substantially cylindrical shape by the vertical sealer device 5, and the whole is open-top type. It is configured to seal-mold the bag PT.

Further, the above-mentioned horizontal sealer device 6 is moved downward by one pack by the horizontal sealer elevating means described below while the horizontal sealers 6X and 6Y hold the bag PT, and each packaging film is moved. Fa is pulled downward by one pack, and then the horizontal sealers 6X and 6Y are opened to the left and right to release the clamp, and the state is returned to the original position before the horizontal seal and raised.

The horizontal sealer lifting / lowering means generally indicated by reference numeral 7 in FIG. 3 is a movable pulley 7A having a gear structure which is rotatably mounted above and below a support plate 7T provided on one side of the horizontal sealer frame 6a. , 7B and the upper and lower body 1 in the moving range of the horizontal sealer frame 6a.
A pulley 7 of the same gear structure rotatably mounted on the side part
C, 7D, a horizontal sealer vertical drive motor 7M for driving and rotating one constant pulley 7C, and upper and lower ends 8a, 8 as shown in the figure.
b is fixed to the upper and lower fuselage 1 sides, and the intermediate portion is extended over the upper and lower movable pulleys 7A and 7B, and then inverted upside down and extended over the upper and lower constant pulleys 7C and 7D. And an interlocking member 8 made of a chain or the like.

According to the horizontal sealer elevating means 7 constructed as described above, when the drive motor 7M rotates one of the fixed pulleys 7C in the counterclockwise direction in FIG. 3, an interlocking mechanism comprising a timing belt or a chain is provided. Member 8 and each pulley 7A ~
The horizontal sealer frame 6 is moved downward by the meshing action of 7D,
On the other hand, when the constant gear 7C is rotated clockwise, the horizontal sealer frame 6 is configured to be able to move upward. By controlling the rotation speed of the drive motor 7M, the horizontal sealer frame 6, ie, In addition to the configuration in which the up and down movement amounts of the horizontal sealers 6X and 6Y can be adjusted, the rotation speed of the above-described packaging material feeding drive motor AM is controlled, and the packaging material FX corresponding to the amount withdrawn by the horizontal sealer device 6 is provided. From the winding roll F.

Also, the cutter device provided on the lower side of the horizontal sealer device 6 is indicated by reference numeral 9 as a whole.
The cutter device 9 includes cutters 9A and 9B for vertically cutting the center line portion of the horizontal seal S performed by the horizontal sealer device 6 vertically.
And a crankshaft 9R having a tip attached to one of the cutters 9A and a root end attached to a disk 9K rotated by a cutter driving motor 9M, but using an air cylinder instead of the motor 9M as driving means. May be used.

The above-described filling nozzle 2R expands and contracts or bends at the flexible pipe portion 2X by the rotation of the nozzle up / down driving motor 2M, thereby forming the horizontal sealer device 6R.
In addition, the above-described filling device 3 always performs the filling timing of the material to be packaged immediately above the position where the horizontal sealer device 6 has performed the horizontal seal S. Is configured to take.

That is, the horizontal sealers 6X, 6 of the horizontal sealer device 6
When Y moves downward by one pack while holding the bag PT, the filling nozzle 2R also follows the horizontal sealer device 6 while filling and supplying the material to be packed into the bag PT. When the horizontal sealer device 6 moves and then returns to the original position after breaking the horizontal seal, the filling nozzle 2R also returns and rises similarly while filling and supplying the remaining packaging material,
It is configured to finish filling.

FIG. 7 is a work process diagram illustrating the vertical operation of the horizontal sealer device 6 (horizontal sealers 6X and 6Y), the vertical operation of the filling nozzle 2R, and the state of filling the material to be packed in order. (A) shows a state where the horizontal sealers 6X and 6Y have moved downward by one pack while holding the bag PT with the horizontal seal, and (B) shows a state where the horizontal sealers 6X and 6Y have moved.
(C) shows a state in which the horizontal sealers 6X and 6Y have performed the horizontal seal S, and (D) shows a state in which the horizontal sealers 6X and 6Y have been released. Indicates a state when the movement is started downward with the horizontal seal.

FIG. 4 shows an example of elevating means for vertically moving the above-mentioned filling nozzle 2R. This filling nozzle elevating means made in the same manner as the above-mentioned horizontal sealer elevating means 7 is provided with the above-mentioned filling nozzle elevating means. Guide shafts 2a and 2b for guiding the vertical movement of the slide plate 2Z, moving pulleys 2c and 2d having a gear structure mounted above and below the slide plate 2Z, and a filling nozzle 2R
Upper and lower fixed pulleys 2e and 2f having the same gear structure rotatably mounted on the body 1 side of the vertical movement range of
Nozzle up / down drive motor 2M for driving and rotating e
And a timing belt or a chain 2V extending between these pulleys 2c to 2f. The lifting / lowering means operates in the same manner as the horizontal sealer lifting / lowering means 7, and the filling nozzle attached to the slide plate 2Z. It is configured to move up and down 2R.

FIG. 2 shows the appearance of a stick-shaped packaged product P to be packaged by the multiple automatic packaging machine having the above-described configuration. In FIG. 2, S1 denotes a vertical seal portion, and S2 and S
Reference numeral 3 denotes the upper and lower horizontal seal portions cut off by the cutters 9A and 9B, and L denotes the length dimension (size) of the packaged product P. According to the operation control device according to the present invention, this length is shown. It is possible to seal-mold sticky packaged products P of various sizes having different dimensions L and different filling amounts.

In FIG. 1, reference numeral 16 denotes a keyboard provided on the body 1, which includes a data read / write key for setting the size of the packaged product P, a mode switching key and a data input key. Are provided, and a display 15 similarly provided on the body 1 has
The system is configured to display the input program data, the set package product size number, or the number of various messages during operation.

FIG. 5 shows an example of the electrical configuration of an operation control device used in the present invention equipped with a microcomputer. In the drawing, reference numeral 10 denotes a CP which forms the center of a control unit.
U and 11 are memories constituted by a ROM storing a system program and a RAM storing various input data; 13 is an interface circuit connected between the CPU 10 and the memory 11 via a bus 12; A motor controller connected to the interface circuit, the motor controller 14 includes the above-described packaging material feeding drive motor AM, the nozzle vertical drive motor 2M, the filling device drive motor 3M, and the horizontal sealer vertical drive A motor 7M and a cutter driving motor 9M (both using a servomotor, for example) are connected.

Further, the above-described interface circuit 13 is connected with the above-described cylinders 5S and 6S for driving the vertical sealer 5A and the horizontal sealer 6X, a display device 15, a keyboard 16 and an LED 17, respectively. The mechanism is controlled and operated according to a program stored in the memory 11 under monitoring.

FIG. 6 is a block diagram showing an example of a data memory set and inputted by using the keyboard 16 in the memory 11. In FIG. 6, each of the above-mentioned data set and set in advance for each size number of each packaged product P is shown. Drive motors AM, 2M, 3M,
A number of rotation numbers and rotation timings of 7M and 9M are stored, and the operation of each of the drive motors AM to 9M is controlled in accordance with a size number selected from the data memory, and a fixed amount of packaging material FX is fed out. A package product P of a certain size (length L) filled with a certain amount of material to be packed is
It is programmed so that it can be continuously formed in multiple systems.

The filling timing of the packing material by the filling device 3 and the vertical movement timing of the filling nozzle 2R by the filling nozzle lifting / lowering means follow the descending movement of the horizontal sealer device 6 so that the filling nozzle 2R moves downward. Is started, the filling of the material to be packaged from the filling nozzle 2R is started.

The packing material filling device in the automatic packing machine according to the present invention is configured as described above, and the horizontal sealer device 6 is moved down while the horizontal seal S is being held to pack one package film Fa. When the filling nozzle 2R is lowered by a distance, the filling nozzle 2R is caused to follow and descend, so that the filling of the material to be packed is always started just above the horizontal seal. There is no possibility that the material to be wrapped adhered to the film surface to be horizontally sealed next by contacting the inner surface of the body PT and being bitten together and sealed,
The horizontal seal can be performed in a stable state without any trouble.

Further, since the filling nozzle 2R is moved down and the filling of the material to be packaged is started just above the horizontal seal, the material to be packaged is evenly filled and supplied to the lower end side of the bag body PT. As shown in FIG. 2, it is possible to finish the form of P with a well-balanced expected thickness, and to use numerical control data such as the nozzle up / down drive motor 2M and the filling device drive motor 3M for each packaged product P. By programming and storing this in the memory 11, various packaged products P
Instantly and accurately.

[0035]

Depending described above, according to the present invention, according to the packaged material filling apparatus in the automatic packaging machine according to the present invention, can be filled supplied without attaching the packaged material laterally sealing the sides of the packaging film, In addition, since the filling and supply are started from the lower side of the bag, there is an advantage that it is possible to provide a packaged product having excellent sealing properties, good overall form balance and high commercial value.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a multiple automatic packaging machine provided with a packaging material filling apparatus according to the present invention.

FIG. 2 is a perspective view showing an example of a packaged product on which a seal is formed.

FIG. 3 is a configuration diagram illustrating an internal structure of the automatic packaging machine illustrated in FIG. 1;

FIG. 4 is a configuration diagram showing an example of a filling nozzle elevating means used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic packaging machine body F Packaging material roll Fa Packaging film P Packaging product PT Bag body S Side seal 2T Supply pipe 2X Flexible pipe section 2R Filling nozzle 2Z Slide plate 2M Nozzle vertical drive motor 3 Filling device 3M Filling device drive motor 5 Vertical sealer device 6 Horizontal sealer device 7M Horizontal sealer vertical drive motor

Claims (1)

(57) [Claims] 1. A step of sealing a packaging film drawn out from a packaging material roll into a bag shape by a vertical sealer and a horizontal sealer, and using a filling means and a filling nozzle inside the packaging film sealed in the bag shape. A step of filling the material to be packaged, a step of lowering the horizontal sealer by the length of the bag while the packaging film is horizontally sealed, and drawing out the packaging film,
After the lowered horizontal sealer is opened laterally, the process of raising and returning to the position before the original horizontal seal is continuously repeated in an automatic packaging machine configured to perform seal packaging. Provide a flexible pipe portion that can be expanded or contracted between the hopper to be stored and the upper end of the filling nozzle,
The filling nozzle is configured to descend and ascend following the descending and ascending movements of the horizontal sealer while at least the tip side of the filling nozzle is inserted into the bag-formed sealing film. And, the filling timing of the material to be packed by the filling means is always set immediately above the horizontal seal, and at the time of the downward movement of the horizontal sealer, the filling nozzle downwardly fills and supplies the material to be packed. moved, said transverse sealer during upward movement of the, in the packaged automatic packaging machine, characterized by being configured as described above of the filling nozzle is raised back to the original position while filling delivery the remaining of the packaging material Material filling equipment.