JP2570545Y2 - Packaging equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus and, more particularly, to a packaging apparatus for continuously producing a sealed bag filled with a predetermined object by using a tube-shaped continuous bag material.

[0002]

2. Description of the Related Art For example, as disclosed in Japanese Utility Model Application Laid-Open No. Sho 60-171802 or Japanese Utility Model Application Laid-open No. Sho 60-171803, while a bag material continuous in a tube shape is formed from a band-like film sheet, the material is formed. 2. Description of the Related Art A bag-making and packaging apparatus that fills a bag with a predetermined object to be sealed is known.

According to Japanese Patent Application Laid-Open No. 2-166011, a bag material preformed in a tubular shape is used.
While the bag material is intermittently transferred by a predetermined amount, a configuration is disclosed in which a sealed bag filled with a predetermined object to be sealed therein can be continuously manufactured. Since it is not necessary to form a tube from a belt-like film sheet, the size of the entire apparatus can be reduced and productivity can be improved.

[0004]

By the way, by using a bag material preformed in a tube shape as described above, a sealed bag in which a predetermined object is filled is continuously manufactured. In the structure configured to obtain the package material, since the bag material is formed in a tubular shape, the material to be sealed cannot be filled into the bag material from the outside. It is necessary to provide a cutter means for forming a filling port of the bag material, and a tension means for tensioning the bag material is provided on the side surface of the bag material in order to form the filling port reliably by the cutter means. However, when the object to be filled is to be filled from the filling port which is in a state of being tensioned by the tensioning means, the bag material maintained in a strained state is obstructed, and the material to be sealed is contained in the bag material. Filling efficiently Theft becomes difficult.

[0005] The present invention addresses the above-mentioned situation, and uses a bag material preformed in a tube shape,
As a packaging device for continuously manufacturing a sealed bag filled with a predetermined encapsulated material, a packaging device capable of efficiently and reliably filling the encapsulated material from a filling port formed on a side surface of the bag material. The purpose is to provide.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is characterized in that it is configured as follows.

That is, the present invention relates to a packaging apparatus for continuously manufacturing a sealed bag filled with a predetermined material to be sealed using a bag material preformed in a tube shape. A feeding means for intermittently feeding the bag material, a tensioning means inserted into the bag material to expand the bag material outward, and tensioning the bag material; Cutter means for forming a filling port for the filling material, filling means for projecting into the bag material from the filling port to fill the filling material into the bag material, and tensioning when filling the filling material with the filling means. a tension release means for releasing the tension of the bag material by means, when Ru is provided a sealing means for sealing the upper and lower vicinity of the filling port provided preceding the cutter means prior to the filling of the enclosure by the filling means
In both cases, the tension is released in conjunction with the movement of the cutter means
A driving mechanism for driving the means is provided.

[0008]

[0009]

According to the present invention , the filling port is reliably formed by the cutter means on the side surface of the bag material tensioned by the tensioning means, and the object to be filled is filled from the filling port through the filling means. although become, during filling with the filling means, will be tension of the bag material is released by tensioning releasing means, such as Thus, Ru impeded filling of the enclosure by a bag material which is a tension Is reliably prevented, so that the filling means efficiently and reliably fills the bag material with the object to be sealed.

In particular, according to the present invention, the tension releasing means is driven in conjunction with the advance / retreat operation of the cutter means for forming a filling port on the side surface of the bag material. There is no need to separately provide a drive unit such as a dedicated drive motor for driving, and the entire packaging apparatus can be configured more compactly.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall front view of a packaging device according to the present invention, and FIG. 2 is a sectional view of a main part taken along a cutting line (a)-(a) in FIG. A pair of upper and lower supports 3a, 3
b, and one of the support bases 3a
A pair of right and left support brackets 4 and 4 are fixedly mounted on the upper part of the roller. The roller member 5 rotatably supported at a predetermined position of the support brackets 4 and 4 has a tube-shaped synthetic resin The bag material A is supported in a multiply wound state (see FIG. 2). In addition, the support table 3
The lifting base 7 is supported by a pair of left and right guide rods 6, 6 fixed in the vertical direction on both sides between the a and 3b via a plurality of bosses 7a.
A drive motor 8 is provided on an extension 7b integrally formed on the back surface of the lift base 7, and a crank mechanism 9 is attached to a shaft end of a drive shaft 8a of the drive motor 8. Is provided.

As shown in FIG. 1, the crank mechanism 9 includes an arm member 10 fixed to the shaft end of the drive shaft 8a.
And a support member 11 having a lower end connected to the arm member 10 and an upper end fixed to a predetermined position of the support 3a.
The arm member 10 has a hollow arm body 10a having one end fixed to the drive shaft 8a, and is rotatably supported in the hollow portion of the arm body 10a. A screw shaft 10b, a slide member 10c screwed to the screw shaft 10b, and slidable in the hollow portion with the rotation of the screw shaft 10b;
The lower end of the swing rod 12 is pivotally attached to the slide member 10c via a support shaft 12a. The support member 11 is a hollow main body 11a fixed on the support base 3a.
A screw shaft 11b rotatably supported in the hollow portion of the main body 11a; and a slide member 11c screwed to the screw shaft 11b and slidable in the hollow portion with the rotation of the screw shaft 11b. And an operation member 11d for rotating the screw shaft 11b, and the slide member 11c
The pivot rod 12 is pivotally connected at its upper end via a support shaft 12b.

Accordingly, the arm member 10 rotates about the support shaft 12a with the rotation of the drive shaft 8a, and
With the rotation of the arm member 10, the swing rod 12
Swings in a predetermined range around the support shaft 12b, so that the entire lifting base 7 is guided by a pair of left and right guide rods 6 and 6 at a predetermined stroke, that is, from the axis of the drive shaft 8a. Swing rod 12 and slide member 1
0c is moved up and down with a stroke twice as long as the distance to the axis of the support shaft 12a connecting the shaft 12c with the shaft 12c.

By operating the operating member 10d of the arm member 10 to rotate the screw shaft 10b, the arm member 10 is rotated in accordance with the rotation direction of the screw shaft 10b.
Is moved up and down, whereby the distance from the connection point between the arm member 10 and the drive shaft 8a to the axis of the support shaft 12a changes, and the up / down stroke of the up / down base 7 is changed. By operating the operation member 11d of the support member 11 to rotate the screw shaft 11b, the slide member 11c screwed to the screw shaft 11b moves up and down inside the hollow portion of the main body 11a. , The connection position of the upper end of the swing rod 12 is changed, whereby the top dead center position or the bottom dead center position of the lifting base 7 can be changed.

Also, protrusions 7c, 7c integrally formed on both sides of the upper end of the elevating base 7, respectively.
A pair of left and right rod members 13, 13 extending in the front-rear direction (left-right direction in FIG. 2) are slidably supported, and front end portions of these rods 13, 13 are connected to a front connection bar 14. The rear connecting bar 15 is provided horizontally at the rear end, and an intermediate bar 16 is supported between the rod members 13 in front of the elevating base 7 so as to be able to move back and forth. A tube material A continuous in a tubular shape is sandwiched between the intermediate bar 16 and the front connection bar 14 in the width direction, and the bag material A is moved along with the elevating operation of the elevating base 7. A feed member 17 for intermittently transferring a predetermined amount is provided. This feed member 17
Both ends are pivotally supported by the rod members 13, 13, and the front connecting bar 14 is detachable from the front connecting bar 14.
And a second holding member 19 which is disposed opposite to the first holding member 18 at a predetermined distance and is supported at a front position of the intermediate bar 16 so as to be able to be separated from and contacted with the intermediate bar 16. And

On the other hand, as shown in FIGS. 1 to 3, a cam 20 is fixed at a predetermined position of the drive shaft 8a, and a rocker arm 21 which is swung within a predetermined range by the cam 20. Is supported on the back surface of the lifting base member 7, and the upper end of the rocker arm 21 is connected to the rear connection bar 15 via a connection member 22.
As shown in FIGS. 1 and 4, a cam 23 is fixed to the drive shaft 8a adjacent to the cam 20.
A rocker arm 24 that is swung within a predetermined range by the cam 23 is supported on the back surface of the elevating base member 7,
The upper end of the rocker arm 24 is connected to the intermediate bar 16 via a connecting member 25. As a result, when the drive shaft 8a rotates, the cams 20 and 23 respectively rotate, and the rocker arms 21 and 24 swing within a predetermined range, and accordingly, the pair of right and left rod members 13, 1
The first holding member 18 is moved back and forth through a front connecting bar 14 provided at the front end of the third holding member 3, and the second holding member 19 is moved back and forth through the intermediate bar 16 in synchronism therewith. In other words, the bag material A is held between the first and second holding members 18 and 19 in the width direction.

Further, as shown in FIGS. 3 and 4, a heater means member 26 for thermally welding the bag material A in the width direction is vertically mounted on the front surface of the second holding member 19, By sandwiching the bag material A between the first clamping member 18 and the front surface of the first clamping member 18 opposed thereto, the material A is thermally welded, and the middle of the first clamping member 18 in the vertical direction. A cutter 27 that forms a perforation for cutting between the upper and lower welded portions of the bag material A when the bag material A is thermally welded is attached to the portion.

As shown in FIGS. 2 and 5, between the pair of guide rollers 28a, 28b rotatably supported at predetermined positions of the support brackets 4, 4, the bag material A continuous in a tubular shape is provided. Tensioning means 29 inserted through the inside and tensioning the bag material A in an expanded state is supported in a floating state. The tensioning means 29 is supported by a plurality of rollers 30... 30 slidably in contact with the guide rollers 28 a and 28 b, respectively, below these rollers 30, and is urged in a predetermined direction by a coil spring 31 (see FIG. 5). Left and right pair of extended levers 32, 3
2, and the bag material A is
And the plurality of rollers 30
.. 30 are in sliding contact with the guide rollers 28a, 28b so that the bag material A is not obstructed from being pulled out downward.

Further, as shown in FIGS. 1 and 2, at the front of the tensioning means 29, a cutter means 3 for forming a filling port for filling one side of the bag material A with an object to be sealed.
3 and a filling means 34 for filling a predetermined object to be filled from a filling port formed by the cutter means 33, and the cutter means 33 is, as shown in an enlarged manner in FIG. A guide block 35 fixedly mounted on a support 3c provided between the left and right frames 2 and 2, and a guide rod 36 inserted through the fixed block 35 are integrally attached to a rear end of the guide block 35, and a cutter is provided. 37 has a slide block 38 fixed to the distal end, and the slide block 38 and the support bracket 3
9, the rotation shaft 40 of the drive motor 40 attached via
and a are connected by a crank mechanism 41 having a conventionally known configuration. The filling means 34 is attached to a link mechanism 42 composed of a pair of upper and lower link members 42a, 42b rotatably supported by the support bracket 39, and to the distal ends of the link members 42a, 42b. a support block 43, the filling tube 4 is supported by a given object enclosure to the support block 43 (not shown) is supplied
4, a rear end of the link member 42a and a slide block 38 to which the cutter 37 is fixed are connected by a connecting rod 45. By driving the drive motor 40, the cutter 37 is moved forward / backward with respect to one side surface of the bag material A via the crank mechanism 41, and the cutter 37 is moved in synchronization with the forward / backward movement of the cutter 37. The filling cylinder 44 in the filling means 34 is a link mechanism 42
When the cutter 37 moves forward, the filling cylinder 44 is retracted upward as shown by the solid line from the state shown by the chain line in FIGS. 2 and 6.

As shown in FIGS. 5 and 6, on the back of the tensioning means 29 below the guide roller 28b,
A roller member 28c abutting on the tensioning means 29 is provided, and when the filling port is formed by the cutter 37,
The tension means 29 is received by the roller member 28c so that the filling port can be formed well.

Further, as shown in FIGS. 6 and 7, below the slide block 38, a tension releasing means 46 for releasing the tension of the bag material A by the tensioning means 29 is provided. The means 46 comprises a pair of left and right swing arms 4 supported on the support 3c below the slide block 38 so as to be swingable about the support shafts 47,47.
8, 48, and a pair of levers 50, 50 fixed to the distal ends of the arms 48, 48 by a plurality of mounting bolts 49,... 49, respectively. Pressing rollers 51, 51 abutting on the side surfaces of the extension levers 32, 32 of the tensioning means 29 are rotatably supported, and the swing arms 48, 4 are respectively supported.
Guide rollers 52, 52 are rotatably supported at the rear end of the roller 8, respectively.

On the other hand, on the lower surface of the slide block 38, a cam member 53 for swinging the swing arms 48, 48 about the support shafts 47, 47 is fixedly provided by a fixing member 54 such as a screw. Guide rollers 52, 52 rotatably supported by the rear ends of the swing arms 48, 48 abut on both side surfaces of the cam member 53. Then, as shown in FIG. 7, when the slide block 38 is in an advanced state, that is, when a filling port is formed on one side of the bag material A by the cutter 37 provided at the tip of the slide block 38. The swing arms 48, 48 are pressed outward by the extension levers 32, 32 urged by the coil springs 31 of the tension means 29, and the slide block 38 is retracted from this state. As a result, each swing lever 48,
48 is swung in the closing direction, whereby the tensioning means 29
The tension of the bag material A by the extension levers 32, 32 is released.

Since each of the levers 50, 50 is provided with a long hole 50a, 50a, through which the mounting bolts 49, 49 are inserted, the levers 50, 50 are adapted to the width of the bag material A. The mounting position can be adjusted.

Next, the operation of this embodiment will be described.
As shown in FIG. 5, the entire lifting base 7 is moved upward through the crank mechanism 9 (see FIG. 1). Until the lifting base 7 reaches the top dead center position. The crank mechanism 41 is driven by the drive motor 40.
, The cutter 37 is advanced toward one side surface of the bag material A tensioned by the tensioning means 29, and the filling port A ′ is formed by the cutter 37. Then, as shown in FIG. 10, when the elevating base 7 reaches the top dead center, the front connecting bar 14 retreats,
When the intermediate bar 16 is advanced, the bag material A is clamped in the width direction by the first and second clamping members 18 and 19 supported by the front connecting bar 14 and the intermediate bar 16, respectively. The upper and lower portions of the holding portion are thermally welded by the heater member 26 provided on the front surface of the second holding member 19, and at the same time, a perforation is formed between the welding portions by the cutter 27. At this time, the drive motor 4
0, the cutter 37 is retracted from one side of the bag material A, and the filling tube 44 of the filling means 34 is advanced through the link mechanism 42. A is inserted into A, whereby a predetermined object B is filled above the heat-welded portion. Thereafter, as shown in FIG. 11, the first and second holding members 18 and
The bag member A is pulled out by the stroke of the elevating base 7 while being clamped by the pin 19. Thereafter, when the first and second holding members 18 and 19 are separated from each other and reach the top dead center position again as shown by a chain line, the previous filling port A 'formed by the cutter 37 is thermally welded. Will be. By repeating a series of operations as described above, a sealed bag in which a predetermined object B is filled and sealed is continuously manufactured.

In particular, in the present embodiment, at the time of filling by the filling means 34, the respective swing arms 48, 48 of the tension releasing means 46 are moved by the movement of the slide block 38 of the cutter means 33 to move the sliding arms 48, 48. The cam member 53 fixed to the lower surface of the block allows the cam member 53 shown in FIG.
Is pivoted as shown in FIG.
The expansion levers 32, 32 of the tensioning means 29 are pressed in the direction of releasing the tension of the bag material A by the respective pressing rollers 51, 51 attached to the leading end of the "0", and the tension of the bag material A is released. As a result, it is reliably prevented that the filling means 34 prevents the filling of the object to be filled, so that the object to be filled is efficiently and reliably filled in the bag material A.

Further, in the present embodiment, the tension releasing means 46 is driven in conjunction with the advance / retreat operation of the cutter means 33 which forms the filling port A 'on the side surface of the bag material A. There is no need to separately provide a drive unit such as a dedicated drive motor for driving the tension release unit 46,
Thereby, the whole packaging device 1 can be configured more compactly.

When the bag material A is welded, a perforation is formed between the welded portions by the cutter 27, whereby the continuously formed sealed bag is cut off by a desired amount. And so on.

[0029]

As described above, according to the present invention , the filling port is formed by the cutter means on the side surface of the bag material tensioned by the tensioning means, and the object to be sealed is filled from the filling port through the filling means. When the filling is performed by the filling means, the tension of the bag material is released by the tension releasing means. Is prevented from being hindered, so that the filling means efficiently and reliably fills the bag material with the above-mentioned filling means.

In particular, according to the present invention, the tension releasing means is driven in conjunction with the forward / backward movement of the cutter means for forming the filling port on the side surface of the bag material. There is no need to separately provide a drive unit such as a dedicated drive motor for driving, and the entire packaging apparatus can be configured more compactly.

[Brief description of the drawings]

FIG. 1 is an overall front view of a packaging apparatus according to an embodiment.

FIG. 2 is a sectional view of an essential part taken along a cutting line (A)-(A) in FIG. 1;

FIG. 3 is an enlarged sectional view of a main part showing a configuration of a feeding means.

FIG. 4 is an enlarged sectional view of a main part showing a configuration of a feeding means.

FIG. 5 is an enlarged sectional view of a main part showing the structure of the tensioning means as viewed from a cutting line (b)-(b) in FIG. 2;

FIG. 6 is an enlarged sectional view of a main part showing a configuration of a cutter unit and a filling unit.

FIG. 7 is a cross-sectional view showing the configuration of the tension release means as viewed from the section line (c)-(c) in FIG.

FIG. 8 is an enlarged sectional view of a main part showing an operation state of the tension releasing means.

FIG. 9 is a sectional view of a main part showing a packaging operation by the packaging device.

FIG. 10 is a sectional view of a main part showing a packaging operation by the packaging device.

FIG. 11 is a sectional view of a main part showing a packaging operation by the packaging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging device 17 Feeding member 26 Heater member 27 Cutter 33 Cutter means 34 Filling means 46 Tension release means 48 Swing arm 50 Lever 51 Press roller 52 Guide roller 53 Cam member A Bag material A 'Filling port

Claims (1)

(57) [Scope of request for utility model registration] 1. A feeding means for intermittently feeding a bag material continuous in a tubular shape by a predetermined amount, a tension means inserted into the bag material to expand the bag material outward and to tighten the bag material, and the tension means Cutter means for moving forward and backward with respect to the side surface of the bag material which has been strained to form a filling port for the object to be filled, and filling for filling the object into the bag material by entering the bag material from the filling port Means, tension releasing means for releasing the tension of the bag material by the tensioning means at the time of filling the object by the filling means, and a filling port previously provided by the cutter means prior to filling of the substance by the filling means. And sealing means for sealing the vicinity of the upper and lower sides of the
In both cases, the tension is released in conjunction with the movement of the cutter means
A packaging device comprising a drive mechanism for driving the means .