JPH07315334A - Film feeder in charging packer - Google Patents

Abstract

PURPOSE:To feed a film without deforming a cylindrical packing body on charging and packing the contents in the inside or film while cylindrically forming the film. CONSTITUTION:A cylindrically guiding means 10 of a film having a bending edge to cylindrically form the film and a passing aperture through which the right and left edges of the bent film are inserted together and the rear side seal means 20 sealing the right and left edges of the film at the lower position and forming a cylindrical packing body, are arranged in turn. Driven wheels 31 which contact the cylindrical packing body sealed at the rear side and rotate to the feeding direction are provided at the inside of the cylindrical packing body and the driving wheels 32 are provided to nip the film locating at the outside of the cylindrical packing body and forming the cylindrical packing body between the driven wheels 31 and further, pull the film to the feeding direction thereby.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for feeding a film for filling and packaging in order to continuously form a tubular package by joining the left and right edges in the feeding direction. is there.

[0002]

2. Description of the Related Art In a filling and packaging machine, in the process of feeding a film drawn from a film roll, the left and right edges are heat-sealed to form a cylindrical intermediate packaging body, which is then sealed at the bottom and filled with the material to be filled inside. However, the packaging machine is capable of sealing one filling by the next sealing and bottom sealing the next filling.
Japanese Patent Laid-Open No. 4-339786 and the like have been proposed. The above-mentioned filling and packaging machine is used for filling products, such as thread konjac, which has a mixture of solid content and liquid content, paste-like or kneaded product, or liquid, and is characterized by the fact that no bubbles remain inside. Is gradually increasing.

In a conventional filling and packaging machine, a pulling roller for sandwiching a tubular package from the front and back is provided after the heat-sealing section, and the film is fed by the pulling force. However, to avoid the filling pipe threaded in the center,
The pulling rollers have to be arranged on the left and right sides of the tubular package, and as a result, the film is formed into a tubular shape and then flattened again on both the left and right sides, so that the finished quality of the filled packaging is questioned. On the other hand, there is no problem if the film can be pulled while maintaining the tubular shape. For that purpose, some sort of feeding means must be provided inside the tubular package, but such a structure has not been proposed yet, especially in food packaging, since foreign substances may be mixed therein.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and its object is to crush or deform a tubular package formed by laminating left and right edges in the feeding direction. The purpose is to feed the film without causing any damage and to obtain high quality pack packaging.

[0005]

In order to solve the above-mentioned problems, the present invention provides a tubular film having a bending edge for bending the film into a tubular shape and a passage opening for aligning the left and right edges of the bent film. The guide means and the back sealing means 20 for sealing the left and right edges of the film below it to form a tubular wrapping body are provided, and the guiding means is brought into contact with the tubular wrapping body with the back seal. Passive wheel 3 that can rotate in the feed direction
1 is provided inside the tubular wrapping body, while holding the film which is located outside the tubular wrapping body and which forms the tubular wrapping body with the passive wheel 31, thereby feeding the film. This means that a drive wheel 32 for pulling to is provided.

[0006]

EXAMPLE A filling and packaging machine according to the present invention draws a film P from a film roll R set on an upper part of a rear surface of a main body B, and introduces a guiding means 10 having a collar type of clothes, which is provided at the uppermost part of the front surface of the main body. At the same time, it is turned substantially downward in a tubular shape by the bending edge 11, and at the same time, it is passed through a central guiding tube 12 continuously provided under the bending edge 11, and the left and right edges E in the feeding direction are bent at the front of the main body. After forming a tubular package P'by the back sealing means 20 provided at the lower part of the guide tube, it is heat-sealed in the lateral width direction provided at the lower part of the front of the main body to form a filled package (Fig. 1, see FIG. 2).

The contents to be filled are supplied through a filling pipe 15 between two horizontal seals at the upper and lower positions. Therefore, the lower end of the filling pipe 15 extends past the guiding means 10 and the back sealing means 20 to the vicinity of the lateral sealing means 16, and the film P and the tubular wrapping body P'are centered on the filling pipe 15. Move around while enclosing. Reference numeral 17 denotes a cutter for cutting the lateral seal portion.

In such a filling and packaging machine, the film P is fed by pulling it. Even if a tensile force is applied to the film P, it will not be displaced or deformed,
In the present invention, the film feeding device A is installed after the film P has passed through the spine sealing means 20 to become the cylindrical molded body P '.

A cross section of the portion of the film feeding device A is shown in FIGS. 3 and 4, and the device A is a film P (cylindrical wrapping body P ') surrounding the filling pipe 15 which is vertically passed through the center. It consists of a pair of rotating wheels that are located inside and outside. The inner rotary wheel is a small passive wheel 31 that comes into contact with the inner surface of the tubular package P ′ and freely rotates in the feed direction, and the outer rotary wheel is tubular packaging with the passive wheel 31. The drive wheel 32 is driven to rotate by pressing the film forming the body P ′. The pair of the passive wheel 31 and the drive wheel 32 are symmetrically arranged in the front-rear direction and the left-right direction of the tubular package P '.

Since the driven wheels 31 to 31 are arranged in the cylindrical package P ', the rod-shaped support member 2 which is long from the top plate of the main body B is used.
A pair of left and right 1 is suspended. The supporting members 21 and 21 have a substrate 22 attached to the lower end thereof, and passive wheels 31 to 31 are detachably provided under the supporting member 21 via a supporting frame 23 (see FIG. 7). The passive wheel 31 and its mounting member have a low wear rate, and do not mix powdery foreign matter into the packaged object.
In addition, it is formed of a material that does not rust and deteriorates to cause adverse effects. The substrate 22 is formed in an elongated oval shape on the left and right sides having a size that allows the film P to be just enclosed, and shaping plates 24 and 25 of similar shapes are also provided on the upper side to form the shape of the tubular package P '. To arrange. The shape of these ellipses also matches the shape of the guide tube 12 of the guide means 10 described above.

The drive wheels 32 to 32 are front and rear drive wheels 33,
34, of which one driving wheel 34 is attached to the apparatus frame 26 so as to be movable back and forth. Reference numeral 27 denotes a front and rear long shaft hole formed in the device frame 26, which allows the bearing 28 of the rear drive shaft 34 to move back and forth. The rear drive shaft 34 is a biasing means composed of a spring acting on the bearing 28. It is pressed forward by 29. The urging means 29 generates a pressure for holding the film P by the passive wheel 31 and the drive wheel 32 so that an appropriate film feeding force can be obtained, and both wheels 31, 32 can be brought into contact with and separated from each other. The biasing means 29 may be provided on both the front and rear drive shafts 33 and 34.

Further, there is provided a mechanism for reducing or eliminating the sandwiching pressure between the drive wheel 32 and the passive wheel 31 by passing the rear drive shaft 34 rearward or for providing a gap between both wheels (FIG. 6).
Reference numeral 35 denotes an induction lever, which is axially supported on the right side of the device frame 26, one end of which can abut on the front side of the bearing 28 of the drive wheel 34, and the other end of which can abut on the front side of the rotating wheel 36. Is. Therefore, when the rotating piece 36 is rotated counterclockwise by operating the handle 37, the rear drive shaft 34 can be pushed backward.

Reference numeral 38 denotes a rotary drive source for driving the drive wheels 32, 32, and power is transmitted to the front and rear drive shafts 33, 34 via a transmission 39 and a transmission mechanism 40.

The filling and packaging machine according to the present invention has a construction in which the guiding means 10 for the film P described above can be detached and replaced. As shown in FIGS. 1, 2 and 8 to 10, the guiding means 10 has a structure in which a collar-shaped shaping plate for clothes is erected on a base 41, and a guiding plate provided in the center of the shaping plate in particular. By changing the shape and size of the cylinder 12, it is possible to form a packaging pack having a size corresponding to the difference in the filling material, specifically, the width of the film P. Engagement portions 42 are provided on both sides of the base 41 for attaching and detaching the guiding means 10 having different shapes and sizes, and the left and right sides of the base 41 are tightened by operating the attachment / detachment levers 44 provided on the main body mounting base 43. 44a is a lever shaft, 44b is a long hole through which the shaft passes, and is provided in the tightening piece 44c.

In order to replace the guiding means 10, the guiding cylinder 1 thereof
The above-mentioned filling pipe 15 extending vertically through the inside of 2 and the rod-shaped support member 21 for attaching the passive wheel are also attachable and detachable. Specifically, the left and right engaging plates 46, 46 that engage with the upper end portion 45 of the filling pipe 15 are provided so as to be able to approach and separate from the top plate 43a of the mounting base portion 43 left and right, and the engaging plate 46 is a spring 47.
Is urged in the approaching direction by the link lever 48 and is connected to the operation lever 49 pivotally supported on the top plate 43a via the link 48,
The engagement plate 46 can be separated leftward and rightward by rotating the operation lever 49. Therefore, the filling pipe 15 can be pulled out upward. Further, since the left and right support members 21 are screwed to the top plate 43a of the mounting base 43, they can be removed downward by loosening them. Reference numeral 50 denotes a long hole formed in the mounting base 43, which is used for the substrate 22 and the removable shaping plates 24, 2 described above.
5 and the inner shape of the guide tube 12 are similar. Reference numeral 51 is a recess formed in the center thereof, through which the left and right edges E, which are fitted together for the purpose of a back seal, pass.

In the filling and packaging machine according to the present invention thus constructed, the required parts of the outer surface can be opened and closed, so that the operations necessary for operation can be easily performed and the appearance can be adjusted and the inside of the machine can be kept clean. You can Opening / closing doors 52, 53, 54, 55 having windows on all four sides of the upper half are attached so that they can be flipped upward, and the wall side 56 of the lower half is
... is removable. Reference numeral 57 represents an operation panel, and 58 represents a packed packaged product take-out conveyor.

When the filling and packaging machine is operated, the film P is guided to the film feeding device A according to the present invention through the guiding means 10 so that the film P is sandwiched between the passive wheel 31 and the driving wheel 32. . At this time, the film P is bent into a tubular shape by passing through the guiding means 10,
Also, the back seal means 2 is attached to the left and right edges E in the feeding direction
Since 0 has heat-sealed it, when it enters the film feeding device A, it is already a complete cylindrical package P '.

The film P is pressed by being sandwiched between the passive wheel 31 and the drive wheel 32, and as a result, when the drive wheel 32 rotates, the film P is pulled in the feed direction by both wheels 31 and 32. The passive wheel 31 is arranged inside the tubular package P ′ and rotates while contacting the inner surface thereof, so that the film P is not deformed and the outer drive wheel 32 is provided.
The structure is simple and maintenance is easy because it only needs to receive the driving pressure.

[0019]

EFFECTS OF THE INVENTION Since the present invention is constructed and operates as described above, the tubular package formed by laminating the left and right edges of the film in the feeding direction is completed while keeping its shape. The wrapping product does not have creases, and the film is not flattened and deformed to return to the original state during filling, so sealing is performed reliably and high quality filled and packed products can be obtained. Produce an effect.

[Brief description of drawings]

FIG. 1 is a front explanatory view showing one embodiment of a film feeding device in a filling and packaging machine according to the present invention.

FIG. 2 is an explanatory side view of the above.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory plan view of a film feeding device according to the present invention.

FIG. 5 is a front explanatory view of the above.

FIG. 6 is an explanatory side view of the same.

FIG. 7 is an explanatory side view showing a passive wheel and a drive wheel portion.

FIG. 8 is a plan view of a filling pipe attachment portion.

FIG. 9 is a front view of the above.

FIG. 10 is a plan view of a guiding means mounting portion.

FIG. 11 is a plan view showing the appearance of a filling and packaging machine according to the present invention.

FIG. 12 is a front view of the same.

FIG. 13 is a side view of the same.

Claims (5)

[Claims] 1. An apparatus for feeding a film for filling and packaging, wherein the left and right edges in the feeding direction are joined together to continuously form a tubular package, and the film is tubularly formed. A tubular guiding means for a film having a bending edge to be bent and a passage opening for aligning the left and right edges of the bent film and passing the film, and a tubular packaging body which is below the tubular guiding means and seals the left and right edges of the film. And a spine sealing means 20 for providing a back seal, and a passive ring 31 that is in contact with the spine-sealed tubular package and is rotatable in the feed direction is provided inside the tubular package while the tubular package is provided. A drive wheel 32 for holding the film, which is located on the outer side of the film and forms a tubular package with the passive wheel 31, thereby pulling the film in the feeding direction. Film feeding in packaging machine Equipment. 2. Passive wheels 31 are arranged at four positions in the front, rear, left and right centering on a filling pipe extending longitudinally in a tubular package, and are attached to a substrate 22 formed in an oval shape in order to keep the film in a tubular shape. The film feeding device in the filling and packaging machine according to claim 1, wherein the substrate 22 is attached to the upper portion of the main body by a long rod-shaped support member 21. 3. The film feeding device in the filling and packaging machine according to claim 1, wherein the passive wheel 31 is detachably provided for cleaning, disassembling and cleaning. 4. The drive wheel 32 is attached to a drive shaft 34, a bearing 28 bearing the drive shaft 34 is attached to the apparatus frame 26 so as to be movable back and forth, and the drive shaft 34 is biased forward. The film feeding device in the filling and packaging machine according to claim 1, wherein the film is sandwiched between the passive wheel 31 and the drive wheel 32 under pressure. 5. The bearing 28 bearing the drive wheel 34 is moved rearward to loosen the contact pressure between the passive wheel 31 and the drive wheel 32, or to provide a gap for passing a film between the wheels 31 and 32. The film feeding device in the filling and packaging machine according to claim 1.