CN1689798A

CN1689798A - A method for forming a handle on film used to produce packs of rolls of products

Info

Publication number: CN1689798A
Application number: CN200510065291.3A
Authority: CN
Inventors: C·迪卡洛
Original assignee: TMC SpA
Current assignee: T M C 股份公司; TMC SpA
Priority date: 2004-04-20
Filing date: 2005-04-19
Publication date: 2005-11-02
Also published as: DE602005008131D1; ITBO20040229A1; ATE401248T1; EP1588950A1; EP1588950B1

Abstract

A method for forming a handle (M) on film (1) used to produce packs (C) of rolls of products (2) in a relative automatic packaging apparatus having at least one station (3) for feeding film (1) from a reel (4), comprising at least the steps, along a path (5) for moving the film (1) from the reel (4) to packaging stations (6) on the apparatus, for: film (1) unwinding along the predetermined feed path (5); folding a portion (7) of film (1) to form two sections (7a, 7b) which overlap and project from the remaining length of the film (1) with a shared vertex; sealing along one side (9) of the portion (7) to join the sections (7a, 7b) on their shared side opposite the shared vertex; punching part of the portion (7) of film (1) to create at least a partial through-opening (8) forming the handle (M).

Description

On the film of the bag that is used to produce the product volume, form the method for handle

Technical field

The present invention relates to a kind of being used to produce the bag that product is rolled up, such as the method that forms handle on the film of toilet paper and/or kitchen paper slip band.

Especially, disclosed packing material has the handle of carrying, and this carries the global facility that handle is this packing material.

Background technology

At present, have with packing material and become the said goods packing material C (as shown in Figure 1) of whole handle M in identical automatics (known type) production that is used for producing no handle packing material.

Main difference relates to used film, and this film is prefabricated or prepare so that a series of handles have in succession been arranged on film with technology in advance.

In fact, the preparation process of film carries out in " machine outside ", that is to say, is not to be undertaken by the company that produces above-mentioned packing material, and this step comprises:

The conventional spool of-expansion heat-sealing film;

-sidepiece (R) of film was folded himself continuously;

-with the remainder of flap (S) along its whole length sealing-in continuously (sealing) mistake film;

-punching press has the side regions (F) of flap so that produce opening or pre-opening A (as shown in Figure 2) continuously, and this opening or pre-opening have formed and have been used for the manual handle that picks up packing material;

-the film that will have a zone that forms handle is wound on the spool again.

At this moment, spool can be installed in the relevant station of above-mentioned packing device so that it can be provided to follow-up known station, is used for:

-qualification has the diaphragm of handle;

-preposition around the rolls of products group with handle twine film and

-by its sealing-in is come closed packaging.

At present, this process with existing " preparation " spool has been brought economically and technical problem: the former is owing to have the cost of spool for the total value of utilizing film formed packing material of handle; If the latter is because spool is installed in drum-type spool retainer and (that is to say, having the cylinder that the motor of two supporting reels drives) security and precision reduce when going up, because be that the spool of normal value twice is asymmetric (it is truncated cone shape basically) at grip area thickness; Therefore, on a side, be exactly unbalanced, need wheel shaft spool retainer unit (promptly having the support cylinder body in the tubular core of inserting spool), be not all to have such retainer unit on all manufacturers' the equipment.To consider the spool transfer problem in addition.

Summary of the invention

In order to overcome these shortcomings, the applicant has invented a kind of method that forms handle on the film of the bag that is used to produce the product volume, it starts from directly the spool that launches from the supply station of the device of the bag of producing the product volume, so to allow to reduce cost and the formation of handle is more accurate and can be relevant with the form of product to be produced.

Therefore, the present invention has realized this purpose with a kind of method, and this method is used for directly forming handle on the film of bag that packing device in automation relatively is being used to produce the product volume, and this packing device has one and is used for from the station of spool feed membrane.This method comprises along with the following steps of film from the path that spool moves to the device package station: launch film along predetermined feed lines; The part of folded membrane is so that form two sections, and these two sections overlap and be outstanding and have a common summit from the residue length of film; Carry out sealing-in so that on the common side relative of section, section is linked together along a side of this part with common summit; The part of this part of punching press film is so that form the partial penetration opening that at least one forms handle.

Description of drawings

Following claim has clearly been described the technical characterictic of the present invention according to above purpose, and from also clearly below in conjunction with its advantage the description of accompanying drawing, accompanying drawing shows the preferred embodiments of the present invention, preferred embodiment just provides with the form of example, rather than the scope of this creative notion limited, and in the accompanying drawings:

-Fig. 1 is the perspective view with bag of the product volume that carries handle that the method according to this invention utilized obtains;

-Fig. 2 is the perspective view of the spool of film, and it has had the handle that obtains according to prior art;

-Fig. 3 is the schematic top plan view of producing the step of handle, and the some of them parts are cut;

-Fig. 4 is a schematic side elevation of producing the step of handle, and the some of them parts are cut;

-Fig. 5 is the schematic side elevation of an optional embodiment of producing the step of handle, and the some of them parts are cut.

The specific embodiment

With reference to the accompanying drawings, and especially with reference to figure 1, disclosed method is used for forming handle M on the film 1 of the web-like that is used for producing product 2 (such as the volume of kitchen and/or toilet paper band) packing material C.

These packing materials C produces in automatic packing apparatus, and this automatic packing apparatus has at least one station 3, is used to supply the film 1 that launches from spool 4.For said apparatus, as example, it is visible having only other station 6, is used to form the group of described product 2 and with the sheet 1a of the film 1 with above-mentioned handle M they is packed, so that the type that the sheet 1a of film is positioned with respect to the group of product 2 just is shown.

Shown in Fig. 3 and 4, disclosed method comprises 5 steps of carrying out along the path, and this path is used for film 1 is moved to package station 6 on the device from spool 4:

-launch film 1 (referring to Fig. 3) along predetermined feed lines (illustrating) with arrow 5;

The part 7 of-folded membrane 1 is so that form two overlapping and outstanding from it and

section

7a, 7b (referring to Fig. 3) that have common vertex of the residue length with film 1;

-along a side 9 sealing-ins of part 7 so as on the common side relative with common

summit linkage section

7a, 7b;

The part of the part 7 of-punching press film 1 is so that produce the partial penetration opening 8 that at least one forms handle M.

Follow-up for above-mentioned steps, alternatively, after film 1 deployment step, at first, can be to the part 7 of film 1 be set to that punching press is carried out in two zones close to each other runs through opening 8 accordingly so that produce, the part 7 that is folding film with above-mentioned punched openings 8 after this step is so that form the step of two

section

7a and 7b, and these two sections overlap mutually and be outstanding and have common summit from the residue length of film 1, and runs through opening 8 and overlap to form handle M.

Preferably, after the sealing-in step, the step (referring again to Fig. 3 and 4) that is folded in the part 7 that is connected on the film 1 that is unfolded can be arranged.

Study above-mentioned each step in further detail, folding step can longitudinally carry out on film 1, that is to say, carries out abreast with the predefined paths 5 of film 1; Go up the type of packing material C to be produced according to device, carried out continuously folding and in presumptive area.

This step can utilize on the either side that is positioned at film and along the path 5 and the special marked fold device 15 and 16 (shown in Figure 4 be known plate and anti-plate) that is disposed immediately in spool 4 downstreams realize.

Folders

15 and 16 can pass through to form folding with respect to the part 7 of the line rising film 1 of the extension of the remainder of film 1.

Punch steps can comprise that the part (schematically illustrated vertical roller positioned opposite to each other in Fig. 3 and 4 is again 5 layouts along the path) of utilizing special building mortion 17 to remove film 1 fully is so that formation runs through opening 8 and handle M is carried in formation.

Alternatively, building mortion 7 can form one along path P and form the dotted line of handle so that the line (pre-weakened line) of the pre-reduction that obtains in use to be removed by the user.

If punch steps was carried out (participation Fig. 5) before folding step, device 17 can be made up of a pair of element with vertical axis, and this element design is formation handle M, and can the alternately motion according to the vertical axis of motion.

The step of the common side 9 of two section 7a of sealing-in and 7b can be continuous along whole common side 9, perhaps discontinuous, that is to say, be formed on the point of common side 9, for example a pair of sealing-in roller 18 that can rotate around the vertical axis that limits this step by the structure that changes sealing-in device.

Roller 18 can form sealing-in by contacting with film 1, by at film place guiding thermal air current, perhaps utilizes other technologies, such as ultrasonic generating means.

In the disclosed method other may step be at least at pre-punching on the folded part 7 of film 1 so that running through regional 10a, the 10b (referring to Figure 10) that form two pre-reductions on the opposite flank of opening 8.Once more, can use pair of rolls 19, its radially be shaped (preferably by means of heat) is to allow forming pre-line of weakness at

presumptive area

10a, 10b.

Near roller 19, heating element heater 10a can also be arranged so that carrying out the sealing-in step near pre-atenuator

region

10a, 10b for two purposes:

-for during the step of supply, the packing of product and sealing-in packing material C, keep pre-atenuator

region

10a, 10b stable and

-for the remainder that at least in part part 7 is connected to film 1 so that by make part 7 be retained as on film 1 coplane relatively at folded part 7 on the film 1.

When these steps were finished, the film 1 with part 7 of M with handles was cut in the zone 20 in path 5 and is brought into package station 6 (known type and shown in the Figure 4 and 5) and locatees so that allow to utilize known procedure that the group of product 2 is packed in mode so as sheet 1a.Obviously, the position of handle M depends on the type of group to be packaged, that is to say, for the bilayer group, handle M will be positioned at the center of the side of end product packing C: the user can pick up packing material C by opening 8 like this, and opening 8 separates so that it can form the device of transportation and packing thing C with the remainder of this part owing to soften regional 10a, 10b in advance.

The method of Xian Dinging is owing to the possibility that direct " in machine " (that is to say in this device) forms handle M during the supply step of film 1 has in case of necessity realized predetermined purpose like this.Wherein do not change the structure of this device fatefully, and just having increased the element that several designs allow to form handle, these elements can utilize according to packing material C to be produced between the former and follow-up handle of Common Controller in the known devices and form the slit.

The possibility that produces handle M in machine also allows to use existing common spool, and need not to use the spool that processes in advance.Therefore, this just allows to use the spool of any kind to support, no matter be the roller that wheel shaft or motor drive.

Described invention has tangible industrial applicibility and can make amendment under the scope that does not depart from creative notion and change.And all details of the present invention can be replaced by the technical equivalents thing.

Claims

1. one kind is used for going up the method that forms handle (M) at film (1), this film is used for producing the bag (C) of product (2) volume from the automatic packing apparatus at the station (3) of spool (4) delivery film (1) having at least one, and this method comprises the following steps at least in the path (5) of package station (6) moving film (1) on from spool (4) towards this device:

-launch film (1) along predetermined feed lines (5);

The part (7) of-folded membrane (1) so as to form two sections (7a, 7b), these two sections overlap and are outstanding and have a common summit from the residue length of film (1);

-along a side (9) of this part (7) carry out sealing-in in case on the common side relative with common summit jointing (7a, 7b);

The part of this part (7) of-punching press film (1) is to produce the opening of partial penetration at least (8) that forms described handle (M).

2. according to the method for claim 1, it is characterized in that the part that will connect in addition (7) folded the step of film (1) after punch steps.

3. according to the method for claim 1, it is included in and carries out on the folded part at least (7) of film (1) and be designed to form two pre-atenuator regions (10a, pre-punching steps 10b) on the opposite side of partial penetration opening (8).

4. according to the method for claim 1, its be included between sealing-in step and the punch steps, on the folded part at least (7) of film (1), carry out and be designed on the opposite side of partial penetration opening (8) to form two pre-atenuator regions (10a, pre-punching steps 10b).

5. according to the method for claim 3 or 4, it is included in pre-atenuator region, and (10a carries out, is designed to keep zone (10a, 10b) the stable sealing-in step of this part (7) near 10b).

6. according to the method for claim 5, it is included in pre-atenuator region, and (10a carries out, is designed to keep respectively this zone (10a, 10b) the stable and sealing-in step that at least in part this part (7) is connected to the remainder of film (1) near 10b).

7. according to the method for claim 1, it is characterized in that folding step longitudinally and with the predefined paths (5) of film (1) carries out abreast on film (1).

8. according to the method for claim 1, it is characterized in that folding step is the step with respect to this part (7) of the line rising film (1) of the extension of the remainder of film (1).

9. according to the method for claim 1, it is characterized in that punch steps comprises that this part (7) goes up to the removing of small part film (1), run through opening (8) with what form that at least one formation carries handle (M).

10. according to the method for claim 1, it is characterized in that punch steps comprises along path (P) the formation dotted line that forms handle (M) so that the pre-line of weakness that acquisition in use can remove.

11. the method according to claim 1 is characterized in that, (7a, the step of common side 7b) (9) is continuous along whole common side (9) to two sections of sealing-in.

12. the method according to claim 1 is characterized in that, (7a, the step of common side 7b) (9) is not continuous along whole common side (9) to two sections of sealing-in, that is to say it is point-like.

13. the method according to claim 1 is characterized in that, the sealing-in step is undertaken by contact.

14. the method according to claim 1 is characterized in that, the sealing-in step utilizes thermal air current to carry out.

15. one kind in the method that is used at film (1) the formation handle (M) with at least one bag (C) of producing product (2) volume from the automatic packing apparatus at the station (3) of spool (4) delivery film (1), this method comprises the following steps at least in the path (5) of package station (5) moving film (1) on from spool (4) towards this device:

-launch film (1) along predetermined feed lines (5);

-punching press is set to two zones of a part (7) of mutually close film (1) so that produce corresponding partial penetration opening (8);

-fold the described part (7) of film (1) so that form two section (7a with punched openings, 7b), these two zones overlap and from the residue length of film (1) outstanding and have common summit and have coincide so as to form handle (M) run through opening (8);

-along a side (9) of this part (7) carry out sealing-in in case on the relative common side of common vertex, connect two sections (7a, 7b).

16. according to the method for claim 15, it is included in carrying out and be designed to form two pre-atenuator regions (10a, pre-punching steps 10b) on the opposite side of partial penetration opening (8) after the sealing-in step on the folded part at least (7) of film (1).

17. according to the method for claim 16, it is included in, and (10a 10b) carries out, is designed to keep respectively this zone (10a, 10b) the sealing-in step of stablizing and at least in part this part (7) being connected to the remainder of film (1) near pre-atenuator region.