JPH10194202A - Content filling device equipped with filling amount adjusting device, and packaging container manufacturing machine equipped with the content filling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid content filling device equipped with an adjusting device for the filling amount of a content into a tubular web, which prevents a defective article of a packaging container from occurring, and a packaging container manufacturing machine equipped with the filling device. SOLUTION: This filling device is constituted in such a manner that a tubular web is formed from a sheet-form web, and a content is filled from a filling pipe to fill the content into the tubular web. In this case, a butterfly valve for the opening/closing of a passage of a filling nozzle 9 at the tip of the filling pipe, an annular float 16 which can move along the external surface of the filling nozzle 9, and a connecting member 17 which connects the butterfly valve and the annular float 16, etc., are provided. In response to the filling amount of a content into the tubular web, the annular float 16 repeats 8 vertical movement while being in contact with the outer peripheral surface of the filling nozzle 9, and by monitoring the wear degree of a protruding part, the annular float 16 can be replaced before a pin hole occurs on the annular float 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container manufacturing machine and, more particularly, to a fluid content filling apparatus for forming a plate-like web into a tubular web and filling the tubular web with contents such as a fluid food. The present invention relates to a packaging container manufacturing machine provided with the fluid content filling device.

[0002]

2. Description of the Related Art As shown in FIG. 1, a packaging container manufacturing apparatus for manufacturing a packaging container in which contents are filled from a plate-like web is a roll-shaped plate of a rewinder 1 wound in a roll shape. The web W is rewound by the rewinding device, and the rewound plate-shaped web W is conveyed by the web feed roller 2, and a dancer roller (oscillating roller) 3 and a guide for constantly applying tension to the web W. While being tensioned by the roller 4, the plate-shaped web W is deformed into a tubular web W while being formed by a plurality of forming rollers 5 (only one is shown in FIG. 1), and the tubular web W is superposed in the longitudinal direction. The ends thus formed are vertically sealed (vertical seal), and a part of the web W is further paired in a direction perpendicular to the longitudinal direction of the web W with a pair of horizontal seal jaws 6 (only one is shown in FIG. 1). In Le After (horizontal seal), and the fluid contents filling pipe 8 from the lateral sealing above the tubular web W
Is filled with the contents, and the size is equivalent to one container from the tubular web W, and after the horizontal sealing, the horizontal sealing portion is cut, and finally the hexahedral-shaped content is obtained. This is to be a filled packaging container C.

At this time, the tubular web W
Conventionally, as a device for adjusting the filling amount of contents into the inside, a filling nozzle 31 is connected to the tip of a filling pipe 8 inserted into a tubular web W as shown in FIG. The butterfly valve 32 for opening and closing the flow path in the filling nozzle rotatable in the vertical direction, the butterfly valve 32
There is known a device for adjusting the filling amount of the contents, which comprises a movable annular float 33 fitted along the outer peripheral surface of the upper filling nozzle 31 and a connecting member 35 connecting the butterfly valve 32 and the annular float 33. I have.

In the content filling amount adjusting device shown in FIG. 6, the tubular float 33 moves up and down in accordance with the liquid level of the content filled in the tubular web W, and the movement of the tubular float 33 moves. When the liquid level rises, the butterfly valve 32, which operates in conjunction with the control, proportionally controls the opening degree of the contents flow path of the filling nozzle 31 so that the supply flow rate decreases so that the flow rate increases when the liquid level decreases.

[0005]

However, in the device for adjusting the filling amount of the contents through the filling nozzle 31 into the tubular web W shown in FIG. 6, the up and down movement of the annular float 33 is frequently repeated. Contact between the filling nozzle 31 formed of a metal such as stainless steel and the annular float 33 is repeated. At this time, as shown in FIG. 7 (illustrated exaggeratedly), the head or bottom of the annular float 33 may come into contact with the filling nozzle 31 and the filling nozzle 31 or the annular float 33 may be worn and damaged.

As a normal use, when the operation of the packaging container manufacturing machine is completed, the filling nozzle 31 is removed from the filling pipe 8 and washed, and at that time, the damage state of the contact portion of the filling nozzle 31 with the annular float 33 is damaged. Can be easily visually checked, and if parts are replaced as necessary, a pinhole (fine hole) is formed in the filling nozzle 31 or the like during the operation of the packaging container manufacturing machine (during the operation of filling the packaging container with the fluid content). ) Can be avoided, and even if the pinholes (fine holes) are generated in the filling nozzle 31 or the like, they have no effect on the product (content to be filled). Absent.

During operation of the actual packaging container manufacturing machine, the annular float 33 is often made of an extremely thin material in order to ensure a functionally sufficient buoyancy with respect to the filling nozzle 31. Therefore, rather than the filling nozzle 31, the annular float 33 on the strength and structurally weak side is easily damaged. Also,
Since the contact portion of the annular float 33 with the filling nozzle 31 is on the inner surface of the annular float 33, it is difficult to detect the damage state of the annular float 33.

Therefore, in the conventional pinhole check of the annular float 33, when the annular float 33 is washed, a change in the weight of the annular float 33 is measured, and if a pinhole is generated, the filling content enters the inside of the annular float 33. Judgment was made based on the presence or absence of weight increase that would occur in such cases. However, in this case, since the product content of the filling content already filled in the packaging container C cannot be guaranteed, usually, the parts are replaced at an early stage so as not to cause a product defect.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fluid content filling apparatus or a packaging container manufacturing machine provided with an apparatus for adjusting the content filling amount into an annular web which does not generate defective fluid content in a packaging container. It is to be.

[0010] Another object of the present invention is to provide a fluid content filling apparatus or a packaging container manufacturing machine provided with an apparatus for adjusting the filling amount of the content into the annular web, from which the degree of wear of the float can be easily determined. That is.

[0011]

The above object of the present invention is attained by the following constitution. That is, in a fluid content filling apparatus for forming a tubular web from a plate-like web and filling the tubular web with a fluid content by a filling pipe, the tubular web is filled into the tubular web along the outer peripheral surface of the filling pipe. A float that floats by the contents and a flow control valve that adjusts a supply amount of the contents to be supplied from the filling pipe into the tubular web in conjunction with the float; a float is provided on a contact surface of the float with the filling pipe; The fluid content filling device is provided with a filling amount adjusting device provided with a protruding portion which is worn by contact between the fluid content filling pipe. In the conventional one without protrusions,
In contrast to the fact that the filling pipe and the float are in line contact, the provision of the projections has the advantage that the filling pipe and the float are replaced by point contact, and that the float responds faster to fluctuations in the liquid level. is there.

When at least two protrusions are provided at different positions in the longitudinal direction of the float, the float does not tilt with respect to the filling pipe. Further, the float does not tilt with respect to the filling pipe even if the protrusion has a ridge shape extending in the longitudinal direction of the float. further,
If the protrusions are provided at two locations, the top and bottom, of the inner peripheral surface of the float that comes into contact with the filling pipe, there is an advantage that the degree of wear can be seen at a glance. Also, when the protrusion is provided so as to have at least one groove formed in the longitudinal direction of the float, there is an advantage that the movement of the fluid in the vertical direction of the float through the groove becomes smooth.

According to the present invention, the degree of wear of the float can be visually confirmed based on the degree of wear of the wear protrusion, so that the float can be replaced before a problem such as pinholes (micro holes) occurs in the float. .

In the filling amount adjusting device according to the present invention, a flow regulating valve is provided at an opening at the tip of the filling pipe and is connected to a float by a connecting member. A magnetic strength detecting means for detecting a change in magnetic strength accompanying the vertical movement of the magnet, and a valve opening degree controlled in accordance with the detected magnetic strength of the magnetic strength detecting means. And an apparatus having a flow control valve provided on a filling pipe. The present invention also includes a packaging container manufacturing machine provided with the above-mentioned fluid content filling device.

[0015]

Embodiments of the present invention will be described.
This embodiment has the same configuration as the fluid content filling device of the packaging container manufacturing machine described in FIG. 1, and is characterized by a device for adjusting the filling amount of the content into the tubular web W in FIG. FIG. 2 shows a perspective view of the annular float portion of the adjusting device portion, and FIG. 3 shows an enlarged perspective view of the flow regulating valve portion.

The filling nozzle 9 at the tip of the filling pipe 8 (FIG. 1) inside the tubular web W (the filling nozzle 9 corresponds to the opening at the tip which is a part of the filling pipe in the present invention) The following content filling amount adjusting device is provided. That is, the content filling amount adjusting device is a butterfly valve 1 for opening and closing the flow path in the filling pipe 8 rotatable in the vertical direction.
5, an annular float 16 fitted along the outer surface of the filling nozzle 9 above the butterfly valve 15 and movable along the outer surface of the filling pipe 8;
A connecting member 17 for connecting the shaft and the annular float 16 is integrated with a cylindrical portion 18 provided with a pair of grooves 18a into which pins 15a at both ends of the butterfly valve 15 can be inserted, and a disk portion 19 contacting the inner surface of the tubular web W. It has a pressure lid 21 having a predetermined shape.

A butterfly valve 15 is attached to the filling nozzle 9 so as to be vertically swingable. Butterfly valve 15
An annular float 16 is mounted on the outer peripheral surface of the filling nozzle 9 so as to be movable upward and downward. A swing pin 15 a serving as a rotation axis of the butterfly valve 15 and the float 16 are connected by a connecting member 17. Pins 15 at both ends of the butterfly valve 15 are provided on the outer periphery of the filling nozzle 9.
A pressure lid 21 is integrally fitted with a cylindrical portion 18 having a pair of grooves 18a into which a can be inserted, and a disk portion 19 that comes into contact with the inner surface of the tubular web W.

The butterfly valve 15, the annular float 16, the connecting member 17, and the pressure lid 21 are configured so as to be detachable from the filling nozzle 9. The detailed configuration will be described with reference to FIG.

In the middle of the filling nozzle 9 in the height direction, two vertically long slits 9a are provided at positions facing each other, and an insertion hole 9b for a vertically long butterfly valve 15 is provided following the lower end of one of the slits 9a. Have been. A horizontal notch 9c is provided near the lower end of the filling nozzle 9. A pin 15 a, which is a horizontal rotation axis, is fixed to the butterfly valve 15, and the pin 15 a is inserted into a slit 9 a of the filling nozzle 9. Both ends of the pin 15a protrude from the slit 9a, and one of the protruding ends
2 is fixed. The lower surface of the annular float 16 is provided with two ears 16a.

The connecting member 17 comprises an arm 22, a pair of parallel bars 23, a connecting bar 24 interposed between the pair of parallel bars 23, and a horizontal pin 25 connecting the arm 22 and the parallel bar 23. Are provided with slits 23a facing each other in the longitudinal direction. A horizontal pin 25 is inserted into the slit 23a, and one end of the horizontal pin 25 is connected to the tip of the arm 22.
One end of the parallel bar 23 is superimposed on the lug 16a of the annular float 16 from the outside, and a detachable pin 26 is inserted into the superimposed portion. A pair of upper opening slits 18a are provided in the cylinder portion 18 of the pressure lid 21 at positions facing each other, and these slits 18a are fitted to pins 15a of the butterfly valve 15. The cylindrical portion 18 of the pressure lid 21
A horizontal through hole 18b is provided at the lower end of the filling nozzle 9 so as to match the notch 9c of the filling nozzle 9. A fixing pin 28 is inserted into the horizontal through hole 18b with a part thereof being fitted into the notch 9c. 21 is attached to the filling nozzle 9.

In this state, the pin 15a serving as the rotation axis of the butterfly valve 15 is provided with the upper end of the slit 9a of the filling nozzle 9 from above and the slit 18a of the cylindrical portion 18 of the pressure lid 21 from below.
Of the pin 15a.
Is positioned.

When the fixing pin 28 is pulled out and the pressure lid 21 is pulled out below the filling nozzle 9, the pressure lid 21 is
Removed from Next, the pin 26 is removed from the overlapping portion of the float 16 and the connecting member 17. Then, the butterfly valve 15 is connected to the filling nozzle 9 through the insertion hole 9b.
And the butterfly valve 15 is removed from the filling nozzle 9 together with the connecting member 17. Finally, the float 16 may be removed below the filling nozzle 9.

As shown in FIG. 2, the filling nozzle 9 is inserted into the internal through hole 16b of the annular float 16, and the upper end of the filling nozzle 9 is inserted into the tip of the filling pipe 8 (FIG. 1). Is connected to the filling pipe 8. A ring 30 having a diameter enough to abut the inner peripheral surface of the tubular web W is fixed to the upper end of the filling nozzle 9. FIG. 4 is an enlarged sectional side view of the vicinity of the head of the annular float 16 of the content filling amount adjusting device.
FIG. 4 shows a view taken along the line AA in FIG.

As shown in FIG. 5, the filling nozzle 9 is inserted into the internal through hole 16b of the annular float 16. The feature of the present embodiment is that the head of the annular float 16 has a contact portion with the filling nozzle 9. Is provided with a wear protruding portion 16c slightly protruding inward. Filling nozzle 9 and annular float 1
6 is made of stainless steel, and the annular float 16 repeatedly moves up and down while contacting the outer peripheral surface of the filling nozzle 9, and the contact portion of the annular float 16 formed of a thin plate is worn. Although there is a possibility that a pinhole (fine hole) may be generated in the annular float 16, in this embodiment, since the annular float 16 is provided with the wear protrusion 16c, the protrusion 16c is worn first. By observing the degree of wear, it is possible to easily determine the time to replace the annular float 16.

The wear protrusions 16c may be provided at two upper and lower locations on the inner peripheral surface of the float that comes into contact with the filling nozzle 9. In this case, the filling liquid in a region surrounded by the outer peripheral surface of the filling nozzle 9, the inner peripheral surface of the float 16, and the protrusions 16 c provided at the upper and lower portions serves as a lubricant, and the level of the liquid level varies. In addition to this, there is an advantage that not only the response of the float 16 becomes faster but also the wear rate of the projection 16c becomes slower. Also,
The wear protrusion 16c may be provided at the center of the float inner periphery.

In this manner, the annular float 16 can be replaced before a pinhole is generated in the annular float 16, so that impurities can be prevented from entering the filling contents in the final packaging container C.

The wear protrusion 16c is provided on the annular float 16
A plurality can be provided along the inner peripheral surface of the head or the like. Although not shown, a magnet is attached to the annular float 16, and a change in magnetic strength due to the vertical movement of the magnet is detected by magnetic detection means, and a valve of a flow control valve provided in the filling pipe 8 leading to the filling nozzle 9. By controlling the opening,
The filling amount of the contents in the tubular web may be adjusted.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fluid content filling apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of an annular float portion of the content filling amount adjusting device according to the embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a flow control valve portion of the content filling amount adjusting device according to the embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a main part of the content filling amount adjusting device of FIG. 3;

FIG. 5 is a view on arrow AA of FIG. 4;

FIG. 6 is a side view of a content filling amount adjusting device disposed inside a web of a fluid content filling device of the prior art.

FIG. 7 is an enlarged view of a main part of FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Rewinder 2 Web feed roller 3 Dancer roller 4 Guide roller 5 Forming roller 6 Horizontal sealing jaw 8 Filling pipe 9 Filling nozzle 15 Butterfly valve 16 Annular float 17 Connecting member 18 Pressure lid tube part 19 Pressure lid disk part 21 Pressure lid 22 Arm 23 Parallel rod 24 Connecting rod 25 Horizontal pin 26 Removable pin 28 Fixing pin 30 Link

Claims (7)

[Claims] 1. A fluid content filling apparatus for forming a tubular web from a plate-like web and filling the tubular web with a fluid content by a filling pipe, wherein the fluid content filling apparatus is provided inside the tubular web along an outer peripheral surface of the filling pipe. A float floating with the content to be filled and a flow control valve for adjusting the supply amount of the content to be supplied from the filling pipe into the tubular web in conjunction with the float and a contact surface between the float filling pipe and the float, A fluid content filling device provided with a filling amount adjusting device, wherein a projection portion that is worn by contact with a filling pipe is provided. 2. The filling amount adjusting device according to claim 1, wherein at least two projecting portions are provided at different positions in the longitudinal direction of the inner peripheral surface of the float in contact with the filling pipe. Fluid content filling device. 3. The filling of a fluid content provided with a filling amount adjusting device according to claim 2, wherein the projections are provided on the head and the bottom of the inner peripheral surface of the float that comes into contact with the filling pipe. apparatus. 4. The filling of a fluid content provided with a filling amount adjusting device according to claim 1, wherein the projection has at least one groove formed in a longitudinal direction of the float. apparatus. 5. The flow control valve according to claim 1, wherein the flow control valve is provided at an opening at the end of the filling pipe, is connected to the float by a connecting member, and opens and closes by moving the float up and down. A fluid content filling device comprising the filling amount adjusting device according to 1. 6. A magnet is attached to the float, a magnetic intensity detecting means for detecting a change in magnetic intensity accompanying the vertical movement of the magnet, and a valve opening is controlled according to the magnetic intensity detected by the magnetic intensity detecting means. A fluid content filling device provided with a filling amount adjusting device according to any one of claims 1 to 4, further comprising a flow control valve provided on the filling pipe. 7. A packaging container manufacturing machine comprising a fluid content filling device provided with the filling amount adjusting device according to any one of claims 1 to 6.