KR101389718B1 - Continuous supply device for packing film - Google Patents

Abstract

The present invention relates to a device for continuously supplying a packing film. The device may improve the supply structure of the packing film to continuously supply the packing film without interruption and may simply attach an end of the packing film to an end of another packing film without interrupting the packing operation due to the simple structure thereof. The device for continuously supplying the packing film according to the present invention includes: a winding roll having an outer circumferential surface around which a first packing film is wound; a waiting roll spaced apart from the winding roll and having an outer circumferential surface around which a second packing film is wound; a first transfer roller guiding a transfer of the first packing film supplied from the winding roll and having a recessed part having a groove shape along an outer circumferential surface thereof; a second transfer roller guiding a transfer of the second packing film supplied from the waiting roll and having a recessed part having a groove shape along an outer circumferential surface thereof; first, second, and third support rollers provided to support the first packing film transferred from the first transfer roller; a rotation roller that is rendered minutely rotatable through an attachment unit, the rotation roller supporting the second packing film transferred from the second transfer roller and having an end to which a double-sided tape is attached; a driving roller driven in a rotatable manner by a driving force of a motor, the driving roller applying a transfer force to the packing film supported and transferred by the third support roller; a support adjusting an angle of the packing film supported and transferred by the third support roller; and a detection unit detecting ends of the first and second packing films wound around the first and second transfer rollers and outputting a detection signal to a control unit controlling the operation of the attachment unit.

Description

CONTINUOUS SUPPLY DEVICE FOR PACKING FILM [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a continuous feeding device for a packaging film, and more particularly, to a continuous feeding device for a packaging film improved in its structure so as to be continuously supplied without interruption during a roll replacement operation of a packaging film fed to a packaging machine side .

In general, a packaging film used for a wrapping paper is intended to protect a wrapping object stored inside from external moisture or impact. For this purpose, the packaging material used for the packaging of the product should be excellent in gas and moisture barrier properties in order to protect the packaging.

Such gas barrier films are mainly used for packaging foods and the like, and laminated film type packaging materials, which usually have good gas and moisture barrier properties, are used.

As a multilayer film having good oxygen barrier properties, a PET (polyethylene terephthalate) film used in a retort pouch is a good example.

The packaged objects can be not only solid foods such as confectionary and meat, but also liquid contents, and packaging films of various materials are applied according to the types of packaged objects.

Existing packaging films are mainly made of poly resin such as polyethylene and polyester, but in the case of advanced packaging films, different materials may be produced by laminating different materials.

As a prior art related thereto, as disclosed in Korean Patent Registration No. 10-1154546 entitled " Laminating Device of Film and Sheet for Packaging Material and Packing Material Therefor "(Registered on June 01, 2012) There is disclosed a packaging material comprising a film wound on any one selected film roller. In this case, there is an advantage that the molding of the advanced packaging container can be performed regardless of the variation of the production speed while performing the laminating of the dissimilar materials without the bonding process .

Prior art relating to a film supply apparatus for supplying a packaging film manufactured as described above to a packaging machine is disclosed in Korean Patent Registration No. 10-1012583 entitled " Film supply apparatus and packaging apparatus equipped therewith "(registered on January 26, 2011) As shown, the film feed mechanism has a bonding sealer for bonding the films to each other, and a supporting member for holding the first part of the film on the atmosphere side, so that the cut film and the film on the air side are bonded by the bonding sealer, Two films are connected and supplied.

However, the feeding device on the packaging machine side of the existing packaging film needs to be continuously supplied to the packaging machine side. To this end, a joining mechanism including a separate joining sealer must be provided. In this case, a heating means such as a heater And a driving source such as an air cylinder is required to move forward and backward of the joint sealer. Therefore, the structure is complicated and the manufacturing cost is high due to the high cost of the supply device.

In addition, since the supply of the packaging film is stopped during the time required for the bonding, the packing operation of the packaging machine can not be continued and the operation is interrupted.

Korean Registered Patent No. 10-1154546 "Laminating Device of Film and Sheet for Packaging Material and Packing Material by It" (Registered Date: 2012.06.01) Korean Patent Registration No. 10-1012583 entitled "Film Feeder and Packing Apparatus Including It" (Registered on January 26, 2011)

 SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a packaging machine capable of continuously supplying a packaging film to a packaging machine side, thereby improving workability, And to provide a continuous feeding device for a packaging film in which the structure is improved so that the operation of the joining mechanism can be performed without providing the joining mechanism.

In order to accomplish the above object, the present invention provides a winding roll and atmospheric roll, each wrapping film being wound on an outer circumferential surface and spaced apart from each other; A first conveying roller for guiding conveyance of the first packaging film supplied from the winding roll; A second conveying roller for guiding conveyance of the second packaging film supplied from the atmospheric roll; First, second and third support rollers provided to support a first packaging film conveyed from the first conveying roller; A pivoting roller which is conveyed from the second conveying roller and which supports a second packaging film having a double-sided tape adhered to a leading end thereof and is rotatable via a joining means; A drive roller rotationally driven by a drive force of the motor and supported by the third support roller to impart a transfer force to the transported packaging film; A support for supporting an angle of the transporting film supported by the third support roller; And sensing means for sensing an end portion of the first and second wrapping films provided on the first and second transport rollers and outputting a detection signal to the control unit side for controlling the operation of the bonding means,
The sensing means is provided with a recess formed by the grooves along the outer peripheral surface of the first and second transport rollers and is disposed at a position close to the recess and is elastically supported at all times by the elastic force of the elastic spring toward the recess A sensing sensor having a sensor probe rotated to be in contact with the inside of the recessed groove in the absence of the first and second packaging films and a sensing unit turned on by a rotation operation of the sensor probe; And a speed detecting sensor for detecting a feeding speed of the first packaging film.

The connecting means includes an interlocking bracket having one end eccentrically coupled to an axial end portion of the pivoting roller and a connecting pin coupled to the other end of the interlocking bracket by a fastening pin, And a restoring spring connected to an end of the retaining pin for restoring the rotation of the retaining bracket,

And a second packaging film having a double-sided tape adhered to the front end portion of the second packaging film is joined to the rear end of the first packaging film by rotating the pivoting roller as the interlocking bracket is rotated during a pulling operation of the solenoid.

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First, since the wrapping rolls 110 and the wrapping rolls wound around the atmospheric roll 120 are automatically joined together using a simple structure joining means, the wrapping film supplied to the wrapping machine can be supplied without interruption. The work can be continuously performed without interruption, so that the working efficiency is remarkably improved.

Second, since the first and second packaging films 10 and 20 can be joined by rotating or returning the pivoting roller 410 using the solenoid 430 and the restoring spring 450, It is possible to perform the bonding process of the first and second packaging films 10 and 20, thereby increasing convenience in use.

Third, the present invention has an advantage that the state of the first and second packaging films 10 and 20 can be easily detected by using the limit switch type sensing sensor 500 using the elastic force of the elastic spring 530 .

Fourthly, in the case of further including a speed detection sensor 550 for detecting the conveying speed of the first packaging film 10 as the sensing signal of the sensing sensor 500 is outputted, the first conveying roller 210 The rotation speed of the driving roller 700 is changed to a low speed so as to perform the bonding operation of the first packaging film 10 and the second packaging film 20 at the time when the conveyance of the first packaging film 10 of the first packaging film 10 is completed The timing at which the rear end of the first packaging film 10 and that at the front end of the second packaging film 20 are output to the control unit side so that the first and second packaging films 10 and 20 can be easily joined at the correct timing .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a continuous feeding device for a packaging film according to the present invention. Fig.
Fig. 2 is an enlarged view showing a transport path of the first packaging film according to the present invention; Fig.
3 is a perspective view showing a configuration of a detection sensor according to the present invention.
4A and 4B are explanatory diagrams showing the state before and after the operation of the detection sensor of the present invention.
Fig. 5 is a side view schematically showing the construction of the joining means of the present invention. Fig.
FIG. 6A is a view showing a state before the bonding means of the present invention is operated, FIG. 6B is a view showing a state in which the first and second packaging films are bonded by the bonding means, FIG. 6C is a cross- And the rear rotation roller 410 is returned to the original position.

The present invention improves the supply structure of the packaging film to enable continuous supply without interruption, and also allows the end portions of different packaging films to be easily bonded to the packaging operation without hindrance by a simple structure.

1 to 6, a continuous supply device for a packaging film according to the present invention includes a take-up roll 110 on which a first packaging film 10 is wound on an outer circumferential surface, And a second wrapping film (20) wound around the second wrapping film (20) and guiding the first wrapping film (10) fed from the winding roll (110) And a second conveying roller 210 having a groove-like recess 215 formed around the outer circumferential surface thereof to guide the conveyance of the second packaging film 20 supplied from the atmospheric roll 120, A first conveying roller 220, a first conveying roller 210, a second conveying roller 220, and a second conveying roller 210. The first conveying roller 210, the second conveying roller 220, And a second packaging film 20 which is attached to the front end and to which the double-sided tape 30 is attached, A driving roller 700 driven to rotate by the driving force of the motor and supported by the third supporting roller 330 to apply a feeding force to the transported packaging film, A support 650 for adjusting the angle of the transported packaging film supported by the first and second transport rollers 210 and 220, and an end portion of the first and second packaging films 10 and 20 wound on the first and second transport rollers 210 and 220, And sensing means for outputting a sensing signal to a control unit (not shown) for controlling the operation of the joining means.

1, the winding roll 110 and the atmospheric roll 120 are disposed at a position close to a packing machine (not shown), and each of the wrapping films is wound around the outer circumferential surface to be rotatable on the frame Respectively.

In the continuous feeding device for the packaging film according to the present invention, a plurality of guide rollers 600 for guiding the conveyance of the first and second packaging films 10 and 20 are provided.

A guide member 630 for guiding the conveyance of the first and second packaging films 10 and 20 conveyed to the first and second conveyance rollers 210 and 220 is provided.

The support base 650 is erected at an inclined angle and the support members in the form of rollers are arranged on the upper and lower sides of the body so as to be spaced apart from each other to give a tension force when the first and second packaging films 10, Function.

Referring to FIG. 2, the first and second support rollers 310 and 320 are coupled with a band-shaped binding member 312, which is disposed up and down and binds the outer circumferential surface of the first and second support rollers 310 and 320 to each other. This binding member 312 can prevent the slip phenomenon of the first packaging film 10 due to the frictional resistance between the first support rollers 310 and the first packaging film 10 when the first packaging film 10 is fed .

The pivoting roller 410 is disposed so as to have a clearance at a position adjacent to the first supporting roller 310 in the horizontal direction and is provided on the outer peripheral surface of the pivoting roller 410 so as to be connected to the first packaging film 10 The front end portion of the second packaging film 20 with the double-sided tape 30 attached thereto is seated and supported.

 3, the sensing means includes a sensor bracket 540 having one end pivotally coupled to the sensor body 510 so as to be rotatable, one end of the sensor bracket 540 rotatably connected to the sensor bracket 540, A sensor probe 520 elastically supported at the other end thereof toward the recessed portion 215 formed around the outer peripheral surface of the first and second conveyance rollers 210 and 220 by an elastic force, And a sensing unit 500 having a sensing unit 545.

The sensor probe 520 is rotatably coupled to a pin for connecting the sensor body 510 and the sensor bracket 540 so that the sensor probe 520 can be inserted into the recessed portion 215 when the first and second packaging films 10 and 20 are not present. And rotates the sensor bracket 540 in a rotating operation.

The sensing means may further include a speed detecting sensor 550 for detecting the feeding speed of the first packaging film 10 in response to the detection signal of the sensing sensor 500.

In this case, the speed detecting sensor 550 is operated to perform the bonding operation (operation) of the first packaging film 10 and the second packaging film 20 at the point of time when the conveyance of the first packaging film 10 of the first conveyance roller 210 is completed To the control unit side, the rear end portion of the first packaging film 10 and the front end portion bonding timing of the second packaging film 20 so as to convert the rotation speed of the drive roller 700 to a low speed.

At this time, the speed detecting sensor 550 can detect the conveying speed of the first packaging film 10 by sensing mark marks (for example, eye marks) marked on each packaging film frame.

The sensing sensor 500 may employ a limit switch.

4A, when the first packaging film 10 passes the outer peripheral surface of the first conveying roller 210, the other end of the sensor probe 520 is inserted into the recessed portion 215 4B, after the transfer of the first packaging film 10 is completed, the other end of the sensor probe 520 is held in contact with the outer surface of the first packaging film 10, The sensor bracket 540 rotates while directly contacting the inner surface of the recess 215 without interference of the first packaging film 10.

The sensing unit 545 senses the state of the first packaging film 10 as the sensor bracket 540 positioned at the front side is rotated and moved downward. The sensing unit 545 converts the sensing state of the first packaging film 10 into a sensing signal, And outputs the result.

5, the connecting means includes an interlocking bracket 440 having one end eccentrically coupled to an end of the shaft 412 of the pivoting roller 410, and an interlocking bracket 440 connected to the other end of the interlocking bracket 440 A solenoid 430 for coupling the fastening pin 435 in the horizontal direction and rotating the interlocking bracket 440 by pulling the fastening pin 435 as external power is applied, And a restoring spring 450 connected to the interlocking bracket 440 for restoring the rotation of the interlocking bracket 440.

The pivoting roller 410 normally functions to support the leading end of the second packaging film 20 but may detect the completion of the conveyance of the first packaging film 10 toward the packaging machine with the detection sensor 500 The rear end of the first packaging film 10 is rotated about the shaft 412 by the interlocking bracket 440 at the time when the rear end of the first packaging film 10 passes the first support roller 310. [

6A, the solenoid 430 is in an off-operated state, and the interlocking bracket 440 is maintained in a pulled state by the tension of the restoring spring 450. As shown in FIG.

As described above, when the detection sensor 500 detects the absence of the first packaging film 10 and outputs the detection result to the control unit, the control unit outputs a control signal to the solenoid 430 side. 6B, the solenoid 430 draws the coupling pin 435 and pulls the coupling bracket 440 toward the solenoid 430 to rotate the solenoid 430. As a result, .

6B is a plan view of the linking bracket 440. The linking bracket 440 applies a rotational force to the shaft 412 of the rotation roller 410 as the other end is rotated by the movement of the engagement pin 435, The double-sided tape 30 attached to the front end portion of the second packaging film 20 while being rotated in the direction of the arrow is adhered to the rear end portion of the first packaging film 10 so that the first and second packaging films 10, .

6C, when the power is turned off so that the solenoid 430 is turned off again, the control unit removes the pulling force of the solenoid 430, and the pulling force of the restoring spring 450 causes the interlocking bracket 440 Is returned to its original position, whereby the rotating roller 410 is rotated in the direction of the arrow in Fig. 6C.

That is, according to the present invention, as the interlocking bracket 440 is rotated during the pull-in operation of the solenoid 430, the rotation of the pivoting roller 410 causes the second packaging film 20 Is connected to the rear end side of the first packaging film 10 and then is returned to the original position by the restoring spring 450 when the power applied to the solenoid 430 is cut off As the first and second wrapping films 10 and 20 wound on the winding roll 110 and the atmospheric roll 120 can be automatically joined together, the continuous packaging film can be supplied.

Meanwhile, another wrapping film wound on the winding roll 110 may be bonded to the second packaging film 20 by the time the supply of the second packaging film 20 wrapped around the atmospheric roll 120 is completed. In this case, The double-sided tape 30 is attached to the front end of another packaging film so as to be seated on the first supporting roller 310 side and then the rotating roller 410 is rotated again to separate the second packaging film 20 from the other packaging film The bonding process is the same as the bonding process of the first and second packaging films 10 and 20 described above.

Therefore, the present invention can automatically supply the wrapping films wound around the take-up roll 110 and the atmospheric roll 120 by using the simple structure joining means to supply the wrapping films supplied to the wrapping machine without interruption, The work can be continuously performed without interruption, and the work efficiency is greatly improved.

10: first packaging film 20: second packaging film
30: double-sided tape 110: winding roll
120: atmospheric roll 210, 220: first and second conveying rollers
215: recessed grooves 310, 320, 330: first, second,
312: binding member 410: pivoting roller
412: Axis (of the rotating roller) 430: Solenoid
435: fastening pin 440: interlocking bracket
450: Restore spring 500: Detection sensor
510: Sensor body 520: Sensor probe
530: Elastic spring 540: Sensor bracket
545: Detector 550: Speed detection sensor
600: guide roller 650: support
700: drive roller

Claims (3)

A take-up roll (110) and an atmospheric roll (120) on which an individual packaging film is wound and arranged so as to be spaced apart from each other;
A first conveying roller 210 for guiding the conveyance of the first packaging film 10 fed from the winding roll 110;
A second conveying roller 220 for guiding the conveyance of the second packaging film 20 supplied from the atmospheric roll 120;
First, second, and third support rollers 310, 320, and 330 provided to support the first packaging film 10 conveyed from the first conveyance roller 210;
A pivoting roller 410 which is conveyed from the second conveying roller 220 and supports the second packaging film 20 with the double-sided tape 30 attached to the leading end thereof and is rotatable via the joining means;
A driving roller (700) rotatably driven by a driving force of the motor and being supported by the third supporting roller (330) and imparting a conveying force to the conveying film;
A support 650 for adjusting the angle of the packaging film carried by the third support roller 330; And
And sensing means for sensing the end of the first wrapping film (10) provided on the first and second transport rollers (210, 220) and outputting a detection signal to the side of a control unit for controlling the operation of the bonding means,
The sensing means may include a recessed portion 215 formed along the circumference of the first and second conveyance rollers 210 and 220,
A sensor bracket 540 whose one end is rotatably coupled to the sensor body 510,
One end is connected to the sensor bracket 540 and the end portion is always elastically supported toward the recessed portion 215 by the elastic force of the elastic spring 530 and the first and second packaging films 10, A sensor probe 520 rotated to be in contact with the inside of the groove 215,
A sensing sensor 500 having a sensing unit 545 that is turned on by the rotation of the sensor probe 520,
And a speed detecting sensor (550) for detecting a feeding speed of the first packaging film (10) in response to a detection signal of the sensing sensor (500) being outputted. The method according to claim 1,
The joining means includes an interlocking bracket 440 having one end eccentrically joined to an end of the shaft 412 of the rotation roller 410,
A solenoid 430 coupled to the other end of the interlocking bracket 440 by a fastening pin 435 and rotating the interlocking bracket 440 by pulling the fastening pin 435 as external power is applied,
And a restoring spring 450 connected to an end of the retaining pin 435 and for restoring the rotation of the retaining bracket 440,
As the interlocking bracket 440 is rotated during the pull-in operation of the solenoid 430, the pivoting roller 410 is rotated so that the second packaging film 20, to which the double-sided tape 30 is attached, And is joined to the rear end side of the packaging film (10). delete

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