KR20170062147A - Wrapping apparatus using flexible film - Google Patents

Wrapping apparatus using flexible film Download PDF

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Publication number
KR20170062147A
KR20170062147A KR1020150167616A KR20150167616A KR20170062147A KR 20170062147 A KR20170062147 A KR 20170062147A KR 1020150167616 A KR1020150167616 A KR 1020150167616A KR 20150167616 A KR20150167616 A KR 20150167616A KR 20170062147 A KR20170062147 A KR 20170062147A
Authority
KR
South Korea
Prior art keywords
film
roller
tension
stretch
discharged
Prior art date
Application number
KR1020150167616A
Other languages
Korean (ko)
Inventor
전태준
Original Assignee
(주)코팩시스템
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)코팩시스템 filed Critical (주)코팩시스템
Priority to KR1020150167616A priority Critical patent/KR20170062147A/en
Publication of KR20170062147A publication Critical patent/KR20170062147A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/02Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/048Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/10Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
    • B65H23/105Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web and controlling web tension
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/192Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web motor-controlled
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/26Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B2011/002Prestretching mechanism in wrapping machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2210/00Specific aspects of the packaging machine
    • B65B2210/14Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00Power transmission; Driving means
    • B65H2403/40Toothed gearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00Application field
    • B65H2801/81Packaging machines

Abstract

The present invention relates to a lapping apparatus for lapping with a stretchable film along the periphery of a package arranged in a package, comprising: a film supply reel supplying a stretchable film; A pre-stretch portion provided on the movement path of the film discharged from the film supply reel and having a first roller and a second roller that rotate at different speeds, and pre-stretches the film; A tension roller provided on a movement path of the film discharged through the pre-stretch portion and providing a tension to the film wrapped around the periphery of the load; A tension detector connected to the tension roller for sensing a tension applied to the wrapped film; And a control unit for controlling a rotation speed of the pre-stretch unit based on the tension data sensed by the tension sensing unit to control a conveying speed of the film discharged from the pre-stretch unit.

Description

WRAPPING APPARATUS USING FLEXIBLE FILM [0002]

The present invention relates to a lapping apparatus using an elastic film, and more particularly to a lapping apparatus using an elastic film for lapping a load with an elastic film along the periphery of a load arranged in a package form.

Generally, pallets are packed in order to prevent collapsing of loads, damage caused by external impacts, or other surface damage due to rain, when various loads such as industrial products and other agricultural products are stored or moved on a pallet.

Most widely known among these packaging methods is a method of wrapping a wrapping film by using a paper box, a wooden box, or the like.

4, the conventional lapping apparatus 110 has a structure in which a load 1 having a predetermined height is seated on the floor, and the tension is applied to the stretching section A constant force is applied to the packaging film 5 to apply lapping, for example, a constant force to the lapping regardless of the sides and edges of the load, the lower end and the upper end.

However, in the case of lapping with a conventional packaging film, an accident often occurs in which the load is broken during transportation of the wrapped load, the packaging film is broken during the wrapping operation, or the load is collapsed during storage of the wrapped load.

In addition, in the conventional lapping, the tail of the packaging film is left after a certain time after the lapping, so that the wrapped load is broken by pressing the tail of the remaining packaging film while the pallet is stacked laterally, There is a possibility that the lower end portion of the sheet is torn and a conductive sheet is damaged.

Conventionally, in the case of wrapping with a wrapping film, in order to solve the above problems, the number of wrapping has been increased unnecessarily, or wrapping has been performed using a film that is thicker than necessary.

Therefore, the wrapping apparatus using the conventional wrapping film has a problem that the wrapping film for wrapping is excessively wasted, so that not only the packaging cost increases, but also the packaging quality is lowered and the productivity is also lowered.

Korean Patent Registration No. 10-1367548 (Title: Apparatus and method for wrapping a film around a laminate of an object, publication date: 2014.02.26.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a lapping apparatus using a stretchable film which can reduce the excessive consumption of a film for wrapping to reduce packaging cost, improve packaging quality, The purpose.

It is an object of the present invention to provide a lapping apparatus for lapping with a stretchable film along the periphery of a package arranged in a package, comprising: a film supply reel supplying a stretchable film; A pre-stretch portion provided on the movement path of the film discharged from the film supply reel and having a first roller and a second roller that rotate at different speeds, and pre-stretches the film; A tension roller provided on a movement path of the film discharged through the pre-stretch portion and providing a tension to the film wrapped around the periphery of the load; A tension detector connected to the tension roller for sensing a tension applied to the wrapped film; And a control section for controlling the rotation speed of the pre-stretch section based on the tension data sensed by the tension sensing section to control the feed speed of the film discharged from the pre-stretch section, Device. ≪ / RTI >

Here, if the tension data sensed by the tension sensing unit is equal to or greater than a predetermined tension, the control unit may control the rotation speed of the pre-stretch unit such that the transport speed of the film moved to the tension roller increases.

The pre-stretching portion may include a first roller provided on a movement path of the film discharged from the film supply reel to slow the conveying speed of the film; And a second roller provided on a moving path of the film discharged from the first roller, for increasing the feeding speed of the film.

The first roller and the second roller may be connected by a plurality of connecting gears to rotate at a constant reduction ratio, or may be connected to each other by a driving motor rotating at a different speed.

And a guide roller provided on the movement path of the film between the film supply reel and the pre-stretch part and guiding the movement of the film introduced into the pre-stretch part.

According to the present invention, by detecting the force applied to the tension roller by the wrapped film through the tension sensing unit, it is possible to reduce the excessive consumption of the film for wrapping, thereby reducing the packaging cost, improving the packaging quality, have.

1 is a configuration diagram of a lapping apparatus according to an embodiment of the present invention;
Fig. 2 is an exploded perspective view of a part of Fig. 1,
3 is a control block diagram of a wrapping apparatus according to an embodiment of the present invention;
4 is a view showing a state in which a load is wrapped using a conventional wrapping apparatus using a stretchable film.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show a lapping apparatus using a stretchable film according to an embodiment of the present invention.

As shown in these drawings, a lapping apparatus 10 using a stretchable film according to an embodiment of the present invention includes a film supply reel 11, a pre-stretch unit 21, a tension roller 41, (51), and a control unit (61).

The film supply reel 11 is wound with a stretchable film 5 and provides the film 5 to the pre-stretch portion 21. [

The pre-stretch portion 21 is provided on the movement path of the film 5 discharged from the film supply reel 11, and pre-stretches the film 5.

The pre-stretch portion 21 has a first roller 23 and a second roller 25 that rotate at different speeds. The first roller 23 and the second roller 25 have the same size and shape and are rotatably coupled to each other with a gap between the pair of support brackets 31. The first roller 23 and the second roller 25 are rubber-coated or rubber-padded so that the film 5 and the slip do not occur in the area in contact with the film 5.

The first roller 23 is provided on the movement path of the film 5 discharged from the film supply reel 11 and serves to slow down the conveying speed of the film 5.

The second roller 25 is provided on the movement path of the film 5 discharged from the first roller 23 and serves to increase the feeding speed of the film 5.

The first roller 23 rotates at a constant reduction ratio with respect to the second roller 25 and stretches the film 5 in accordance with the function of the speed ratio of the first roller 23 and the second roller 25. That is, the first roller 23 and the second roller 25 are connected by a plurality of connecting gears (not shown) having different diameters, and the second roller 25 is directly connected to the roller driving motor 27. As shown in Fig. 2, the roller driving motor 27 and the plurality of connecting gears are housed so as not to be exposed to the housing 35. [

Thus, as the roller driving motor 27 rotates, the rotational force of the roller driving motor 27 is transmitted to the first roller 23 by being decelerated by sequentially passing through the second roller 25 and the plurality of connecting gears, The second roller 25 rotates in the same manner as the number of rotations of the roller driving motor 27 and the first roller 23 rotates at the number of rotations reduced by the plurality of connecting gears.

The film 5 released from the film supply reel 11 is stretched in the course of passing through the first roller 23 and the second roller 25 with different rotational speeds, The film 5 moving from the first roller 23 to the second roller 25 is moved to the second roller 25 because the rotation of the first roller 23 first wound on the film 5 is slower than the rotation of the second roller 25, The film 5 is pulled by the roller 25 and stretched in the longitudinal direction, but is not reduced in the width direction. Thus, when the film 5 is stretched to the maximum, a large retraction force due to the restoring force is not generated.

Stretching and stretching the film 5 discharged from the film supply reel 11 before lapping the load 1 as described above reduces the force of the film 5 touching the load 1 and reduces the deformation , The film 5 stretched through the pre-stretch portion 21 is narrowed slightly when wrapped on the load 1, so that the force for holding the load 1 is strengthened, the consumption amount of the wrapped film 5 is reduced, .

Here, although not shown as another embodiment, the first roller 23 and the second roller 25 may be connected to the drive motor and rotate, respectively. At this time, the driving motor directly connected to the first roller 23 rotates at a constant speed, and the driving motor directly connected to the second roller 25 may be rotated at a variable speed.

The tension roller 41 is provided on the movement path of the film 5 discharged through the pre-stretch portion 21 and adjusts the tension of the film 5 wrapped around the periphery of the load 1. The tension roller (41) is rotatably coupled between the pair of support brackets (31). The tension roller 41 is rubber-coated or rubber-padded so that the film 5 and the slip do not occur in the area in contact with the film 5.

The tension detecting unit 51 is connected to the tension roller 41 and senses the tension acting on the wrapped film 5 and transmits the sensed tension data to the control unit 61 in real time. The tension detecting unit 51 is installed on one side support bracket 31 as shown in FIG. 2, and is connected to one end of the tension roller 41. Here, it is more effective to apply the load cell as the tension detecting unit 51.

The control unit 61 controls not only the driving of the roller driving motor 27 but also the rotational speed of the pre-stretching unit 21 based on the tension data sensed by the tension sensing unit 51. [

As the film 5 is discharged from the tension roller 41 and is being wrapped on the load 1, for example, at the moment when it is desired to wrap the edge area of the load 1, which acts forcefully on the wrapped film 5, Stretch unit 21 increases the rotational speed of the pre-stretch unit 21 when the tension data detected by the tension sensor 51 through the tension roller 41 is greater than a predetermined tension, So that the conveying speed of the film 5 discharged from the conveying belt 21 is increased. That is, the controller 61 controls the roller driving motor 27 so that the rotating speed of the first roller 23 and the second roller 25 is increased so that the film 5 has a constant drawing ratio and wraps the load 1, Variable control is performed.

Therefore, as the feed rate of the film 5 discharged from the pre-stretch portion 21 is increased, when the film 5 is to be wrapped around the edge region of the load 1, It is possible to prevent the film 5 from breaking.

On the contrary, if the tension data detected by the tension detecting unit 51 is less than a predetermined tension, the control unit 61 reduces the rotational speed of the pre-stretch unit 21, (5) is decreased. That is, the controller 61 controls the roller driving motor 6 so that the rotating speed of the first roller 23 and the second roller 25 is reduced so that the film 5 has a constant draw ratio and lops one area of the load 1. [ (27).

The lapping apparatus 10 according to an embodiment of the present invention is provided on the movement path of the film 5 between the film supply reel 11 and the pre-stretch unit 21, And guide rollers 71 for guiding the movement of the film 5 to be transferred.

By providing the guide rollers 71, the film 5 discharged from the film supply reel 11 remains flat without being twisted, and can smoothly move to the pre-stretch portion 21.

Meanwhile, the lapping apparatus 10 according to an embodiment of the present invention may include a height sensing unit 81 such as a photosensor to lap the film 5 corresponding to the height of the load 1. The height sensing unit 81 is provided in a carriage (not shown) installed with the lapping apparatus 10 according to an embodiment of the present invention and moves up and down along the load 1, The height is detected.

With this configuration, a process of wrapping the load 1 using the wrapping apparatus 10 using the stretchable film according to an embodiment of the present invention will be described.

Prior to the description, the load 1 may be arranged in the form of a package on the floor, not on the pallet.

When the control unit 61 drives the roller drive motor 27 of the pre-stretch unit 21, the film 5 discharged from the film supply reel 11 as the roller drive motor 27 is driven moves to the pre- 21). The film 5 introduced into the pre-stretch portion 21 is stretched at a predetermined ratio in advance by the speed difference between the first roller 23 and the second roller 25 rotating at different speeds, The tension is reduced to a small extent in a state in which the tension is controlled, and the wrapping is performed along the periphery of the load 1.

On the other hand, when the film 5 is wrapped around the edge portion of the load 1 as compared to when the flat portion of the load 1 is wiped, a relatively large force is applied to the tension roller 41, The force acts.

The present invention can be applied to the case where the tension of the film 5 is detected in the edge area of the load 1 during the real time sensing of the force applied to the tension roller 41, The control unit 61 increases the rotational speed of the pre-stretch unit 21 and discharges the pre-stretch unit 21 from the pre-stretch unit 21 when the tension data detected by the tension detection unit 51 becomes equal to or greater than a predetermined tension, Thereby increasing the feed speed of the film 5 to be fed.

Therefore, the lapping apparatus 10 according to the embodiment of the present invention is capable of preventing the tension detected in real time through the tension detecting unit 51 from exceeding a predetermined tension according to the force acting on the film 5 wrapping the load 1 As an example, when the film 5 is intended to wrap the edge area of the load 1, the amount of the film 5 is instantaneously increased and supplied so that the edge area of the load 1 can be smoothly wrapped , Thereby preventing the film 5 from tearing and improving the quality of the packaging.

When the tension sensed through the tension sensing portion 51 is less than a predetermined tension according to the force acting on the film 5 wrapping the load 1, the control portion 61 controls the rotation speed of the pre- So that the film 5 wraps the load 1.

On the other hand, the film 5 wrapping the load 1 wraps the load 1 while keeping the stretch ratio of the film 5 the same, regardless of the force acting on the film 5.

As described above, according to the present invention, the force applied to the tension roller by the wrapped film is sensed through the tension sensing unit, and when the force applied to the wrapped film is greater than a certain level, If the force applied to the film to be wrapped is less than a predetermined size, the amount of the film to be wrapped is reduced to wrap the load, thereby reducing the excessive consumption of the film for wrapping, thereby reducing the packaging cost, improving the packaging quality, .

On the other hand, the lapping apparatus using the stretchable film according to the present invention can also be used for lapping a load with a stretchable film while running along the periphery of a load arranged in the form of a pallet or an un-palletized package, The load may be wrapped in a stretchable film along the periphery of the load by rotating the load arranged in the form of a pallet or an un-palletized package while the device is fixed in position.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

1: load 5: film
10: lapping device 11: film supply reel
21: pre-stretch portion 23: first roller
25: second roller 27: roller drive motor
41: tension roller 51: tension sensor
61: control unit 71: guide roller
81:

Claims (5)

CLAIMS 1. A lapping apparatus for lapping with a stretchable film along a periphery of a package arranged in a package,
A film supply reel supplying a stretchable film;
A pre-stretch portion provided on the movement path of the film discharged from the film supply reel and having a first roller and a second roller that rotate at different speeds, and pre-stretches the film;
A tension roller provided on a movement path of the film discharged through the pre-stretch portion and providing a tension to the film wrapped around the periphery of the load;
A tension detector connected to the tension roller for sensing a tension applied to the wrapped film; And
And a control unit for controlling the rotation speed of the pre-stretch unit based on the tension data sensed by the tension sensing unit to control the feed speed of the film discharged from the pre-stretch unit. .
The method according to claim 1,
Wherein the control unit controls the rotation speed of the pre-stretch unit such that the film transfer speed of the film moved to the tension roller is increased if the tension data detected by the tension sensor is equal to or greater than a predetermined tension, .
The method according to claim 1,
The pre-
A first roller provided on a moving path of the film discharged from the film supply reel to slow down the feeding speed of the film; And
And a second roller provided on the movement path of the film discharged from the first roller to increase a feeding speed of the film.
The method of claim 3,
Wherein the first roller and the second roller are connected by a plurality of connecting gears to rotate at a constant reduction ratio or are connected to each other by a driving motor rotating at a different speed.
The method according to claim 1,
Further comprising a guide roller provided on the movement path of the film between the film supply reel and the pre-stretch portion, for guiding movement of the film introduced into the pre-stretch portion.
KR1020150167616A 2015-11-27 2015-11-27 Wrapping apparatus using flexible film KR20170062147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150167616A KR20170062147A (en) 2015-11-27 2015-11-27 Wrapping apparatus using flexible film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150167616A KR20170062147A (en) 2015-11-27 2015-11-27 Wrapping apparatus using flexible film

Publications (1)

Publication Number Publication Date
KR20170062147A true KR20170062147A (en) 2017-06-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150167616A KR20170062147A (en) 2015-11-27 2015-11-27 Wrapping apparatus using flexible film

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102259203B1 (en) * 2021-04-28 2021-05-31 윤명구 Wrapping robot with enhanced safety and reliability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102259203B1 (en) * 2021-04-28 2021-05-31 윤명구 Wrapping robot with enhanced safety and reliability

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