CN1608951A - Making process of tear in soft packing bag - Google Patents
Making process of tear in soft packing bag Download PDFInfo
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- CN1608951A CN1608951A CN 200310111927 CN200310111927A CN1608951A CN 1608951 A CN1608951 A CN 1608951A CN 200310111927 CN200310111927 CN 200310111927 CN 200310111927 A CN200310111927 A CN 200310111927A CN 1608951 A CN1608951 A CN 1608951A
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- packaging bag
- soft packaging
- diaphragm seal
- making
- tearable mouth
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Abstract
The making process of tear in soft packing bag includes the following steps: inputting the designed pattern into computer system; controlling the laser cutting system with computer system; and irradiating the outer side of sealed soft packing bag with the laser beam the laser cutting system generates in the designed pattern to form corresponding scotch line to constitute the tear. The present invention has the advantages of simple process, changeable tear form, good scotch effect, easy to tear, high sealing performance of the bag, etc.
Description
[technical field]
The present invention relates to a kind of method for making of soft packaging bag tearable mouth.
[background technology]
The packaging film that is used for making soft packaging bag mostly is composite film, and the rete of this packaging film constitutes, and begins to describe from outermost layer, generally comprises: by the ground floor of polypropylene (PP) material; The second layer by nylon (NY) making; Make by aluminium foil (AL) the 3rd layer; By the 4th layer of polyethylene (PE) material.For the ease of opening the package, people use small gap of mechanical stamping as tearable mouth, so that tear packaging bag along this breach on the hot pressing limit of flexible packaging usually.Just, the second layer intensity of making by the ground floor of polypropylene (PP) material and by nylon (NY) is higher, and the restive direction of tearing may cause the badly broken of soft packaging bag.Therefore the tearable mouth of said structure is not torn directional tagging, the higher packaging bag of inapplicable packaging film intensity.If use the mode of mechanical mold pressing in packaging bag, to extrude one straight line impression, then because the too thin and out of reach ideal effect of soft packaging bag, or can't extrude impression, or will pack mould and wear to make a linear tearable mouth.
Except widespread use straight line tearable mouth, also can use circular tearable mouth and special-shaped tearable mouth in the packaging bag.As a kind of soft beverage packing bag, use for the convenience of the user, be used for assigning the circular tearable mouth of suction pipe in one of the upper design of bag, the user can be with the suction pipe of tip sucking-off beverage in the circular hole place inserts bag easily.The traditional fabrication method of this tearable mouth is to stamp out a circular hole earlier with mechanical system on packaging film, when bag, a width is covered circular hole place in the bag greater than the thin film of this bore dia along the packaging film sealed sides, with circular envelope cutter the circular hole periphery is sealed again, film is sealed circular hole.This job operation also can make a bag edge heat-sealing difficulty except that complex process, reject rate height, easily cause leakage.
[summary of the invention]
The object of the present invention is to provide the method for making of a kind of soft packaging bag tearable mouth of using laser cutting technique.
A kind of method for making of soft packaging bag tearable mouth is characterized in that: comprise the steps:
(1), the design-calculated pattern is input in the computer system;
(2) use the computer system control laser cutting system;
(3) laser beam irradiation that described laser cutting system is generated is to the lateral surface of soft packaging bag diaphragm seal, and described laser beam carves or cut into the line of weakness of corresponding moulding at the lateral surface of soft packaging bag diaphragm seal according to designed pattern.
(4) described tearable mouth is formed according to line of weakness.
The soft packaging bag diaphragm seal lateral surface of such scheme is to regulate with the speed of hot spot and diaphragm seal speed of relative movement and the size of beam energy because of the depth degree of the indentation that laser engraving or cutting form.
When the soft packaging bag diaphragm seal was complex film, laser cutting system can be with the intensity height, and the skin of more difficult tearing and time skin cut away, and both kept easily tearing and the internal layer of tearing guidance quality is arranged.
Described laser cutting system is on Bag Making Machine the soft packaging bag diaphragm seal to be carved or cut.
Described laser cutting system is on the cutting machine of soft packaging bag diaphragm seal or rewinding machine soft packaging bag diaphragm seal in service to be carved or cut.
Effect of the present invention and advantage are fairly obvious:
One, operation is simple.Laser cutting system can be installed on the Bag Making Machine, at Bag Making Machine the soft packaging bag diaphragm seal is carved or is cut.Laser cutting system also can be installed on cutting machine or the rewinding machine, and soft packaging bag diaphragm seal in service is carved or cut, and will have laser scored soft packaging bag diaphragm seal then and make packaging bag on Bag Making Machine.After the packaging bag moulding, tearable mouth is formed according to line of weakness.
But two, the moulding random variation of tearable mouth.Because laser cutting system is by computer system control, so in design-calculated pattern input computer system, by the computer system control laser cutting system, can carve or cut out the line of weakness of described pattern modelling at the soft packaging bag diaphragm seal, tearable mouth is then formed according to line of weakness.
Three, indentation is effective, and tearable mouth is torn easily, has the guidance quality of tearing.The depth degree of the indentation that soft packaging bag diaphragm seal lateral surface forms because of laser engraving or cutting can be regulated with the size of the speed of hot spot kinematic velocity and beam energy.No matter so line of weakness simultaneously be carved or be cut out to soft packaging bag diaphragm seal thickness still can at it.When the soft packaging bag diaphragm seal is complex film, can be by laser cutting system with the intensity height, the skin of more difficult tearing and time outer cutting are come, and both keep easily tearing and the internal layer of tearing guidance quality is arranged.When tearing, indentation plays tears directional tagging.
Four, it is good to have a packaging bag seal degree of this tearable mouth, because laser has only destroyed the skin of diaphragm seal, the internal layer of diaphragm seal still has better seal, and it is very little to form the line of weakness of tearable mouth, so can not cause damage to the structure of packaging bag.
[description of drawings]
Fig. 1 is a FB(flow block) of the present invention;
Fig. 2 is the present invention at a kind of scheme drawing that concerns of implementing each parts under the state;
Fig. 3 is the cutaway view of layer structure that has the soft packaging bag diaphragm seal example of line of weakness;
Fig. 4 is the plan sketch that has the soft packaging bag diaphragm seal example of line of weakness;
Fig. 5 is according to one of packaging bag tearable mouth moulding of Fig. 4 diaphragm seal making;
Fig. 6 is according to two of the packaging bag tearable mouth moulding of Fig. 4 diaphragm seal making;
Fig. 7 is the plan sketch that has another example of soft packaging bag diaphragm seal of line of weakness;
Fig. 8 is the packaging bag tearable mouth moulding of making according to Fig. 7 diaphragm seal.。
[specific embodiment]
In the present embodiment, soft packaging bag diaphragm seal 10 is a complex film, is made up of four tunics altogether, and its ectomesoderm 8 is polypropylene (PP) material; Inferior outer 7 by nylon (NY) material; Inferior internal layer 6 is made by aluminium foil (AL); Internal layer 5 is by polyethylene (PE) material.In these four layers, outer 8 is higher with time outer 7 intensity, more difficult tearing; Internal layer 5 and the 6 easily tearings of time internal layer.
Laser cutting system comprises laser generator 11, galvanometer 12 and optics conduction, focusing block 13, and laser generator wherein adopts carbon dioxide laser, and the light beam wavelength of this laser generator is 10.6 μ m, and horsepower output is 30 watts.The laser of this wavelength be difficult for to cut aluminium foil, is particularly suitable for cutting line of weakness having on the complex film of aluminium foil.Computing machine is equipped with beats the Darts software system, can position cutting to operating diaphragm seal.
Above-mentioned soft packaging bag diaphragm seal 10 is on the cutting machine, and department of computer science's laser cutting system of unifying is installed on the cutting machine, and laser cutting system is carved or cut the diaphragm seal in the motion.
In conjunction with the accompanying drawings, the concrete steps of present embodiment are as follows:
The first, the circular line of weakness pattern of input in computing machine 14;
The second, computing machine is a signal with pattern transfer, is used to control laser cutting system;
The 3rd, packaging bag diaphragm seal 10 is placed under the laser cutting system;
The 4th, catch by the colour code 16 on 15 pairs of diaphragm seals of color mark sensor, and with in the signal input computing machine that captures;
The 5th, as shown in Figure 3, the computer controlled laser cutting system is radiated at laser beam 18 on the diaphragm seal lateral surface, and laser beam stops because of being subjected to the internal layer aluminium foil, thereby makes peelable internal layer not be excited the processing of light beam.The relative diaphragm seal of laser facula cuts outer 8 (being made by polypropylene material) and time outer 7 (being made by nylon material) with the speed of 100 meters of per minutes; Carve or cut out continuous groove 4 (see figure 3)s at the diaphragm seal lateral surface, this continuous groove 4 is formed the line of weakness 3 of above-mentioned circle.
The 6th, the diaphragm seal that has above-mentioned circular score line line is after cutting machine is cut, on Bag Making Machine, make and form soft packaging bag, as shown in Figure 5, be three side sealing packaging bag 17, line of weakness 3 forms the tearable mouth 1 of quadrntnt arc after cutting and folding, this tearable mouth extends to the edge, hot pressing limit of packaging bag, can tear easily with hand, as shown in Figure 6, be self-supporting packaging bag 19, described line of weakness 3 is slitting and folding not, directly form circular tearable mouth 2 in packaging bag, this tearable mouth can be torn for the instrument of suction pipe or similar suction pipe.
Because skin that intensity is higher and time skin are cut along line of weakness by laser, only strength retention is lower, easily the inferior internal layer and the internal layer of tearing.So just tearable mouth can be torn with very little power.When tearable mouth was torn, line of weakness played directional tagging, the opening of formation rule in packaging bag.
As another kind of embodiment, with reference to figure 7 and Fig. 8, adopt said method on diaphragm seal 20, to become a rectilinear line of weakness 21 by laser beam machining, diaphragm seal 20 is after cutting machine is cut, on Bag Making Machine, make and form soft packaging bag 22, line of weakness forms a rectilinear tearable mouth 23 in packaging bag, and this tearable mouth extends to two edges, hot pressing limit of packaging bag, can tear easily with hand.
As another kind of embodiment, laser cutting system also can be installed on the rewinding machine, in the process of rewinding diaphragm seal is carved or is cut, and accomplishes fluently line of weakness before being implemented in bag.
As another kind of embodiment, laser cutting system also can be installed on the Bag Making Machine, when bag diaphragm seal is carved or is cut.
Described tearable mouth structure and line of weakness structure, it is described to be not limited to the foregoing description, also can adopt said method to process the groove of interruption with laser on guide layer or meets, and forms the line of weakness that is interrupted.
Claims (7)
1, a kind of method for making of soft packaging bag tearable mouth is characterized in that: comprise the steps:
(1), the design-calculated pattern is input in the computer system;
(2), use the computer system control laser cutting system;
(3), laser beam irradiation that described laser cutting system is generated is to the one side of soft packaging bag diaphragm seal, described laser beam carves or cuts into the line of weakness of corresponding pattern moulding in the one side of soft packaging bag diaphragm seal according to designed pattern;
(4), described tearable mouth is formed according to line of weakness.
2, the method for making of a kind of soft packaging bag tearable mouth according to claim 1 is characterized in that: the degree of depth of described indentation is less than the thickness of soft packaging bag diaphragm seal.
3, the method for making of a kind of soft packaging bag tearable mouth according to claim 1 is characterized in that: the depth degree of the indentation that soft packaging bag diaphragm seal one side forms because of laser engraving or cutting is to regulate with hot spot and the speed of packaging bag diaphragm seal speed of relative movement and the size of beam energy.
4, the method for making of a kind of soft packaging bag tearable mouth according to claim 1 and 2, it is characterized in that: when the soft packaging bag diaphragm seal is complex film, laser cutting system can be selected the intensity height, the skin of more difficult tearing and time skin cut away, and both keep easily tearing and the internal layer of tearing guidance quality is arranged.
5, the method for making of a kind of soft packaging bag tearable mouth according to claim 1 is characterized in that: described laser cutting system is on Bag Making Machine the soft packaging bag diaphragm seal to be carved or cut.
6, the method for making of a kind of soft packaging bag tearable mouth according to claim 1, it is characterized in that: described laser cutting system is on the cutting machine of soft packaging bag diaphragm seal or rewinding machine soft packaging bag diaphragm seal in service to be carved or cut, and will have laser scored soft packaging bag diaphragm seal then and make packaging bag on Bag Making Machine.
7, the method for making of a kind of soft packaging bag tearable mouth according to claim 1 is characterized in that: the laser generator of described laser cutting system is the carbon dioxide laser producer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111927 CN1608951A (en) | 2003-10-23 | 2003-10-23 | Making process of tear in soft packing bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111927 CN1608951A (en) | 2003-10-23 | 2003-10-23 | Making process of tear in soft packing bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1608951A true CN1608951A (en) | 2005-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200310111927 Pending CN1608951A (en) | 2003-10-23 | 2003-10-23 | Making process of tear in soft packing bag |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462337B (en) * | 2007-12-20 | 2013-01-09 | 深圳富泰宏精密工业有限公司 | Process for producing molded article |
| CN102079407B (en) * | 2009-11-27 | 2014-02-19 | 深圳市大族激光科技股份有限公司 | Method for opening box by cutting packing tape with laser |
| CN104787487A (en) * | 2015-04-07 | 2015-07-22 | 大连大富塑料彩印有限公司 | Self-heating food packaging container |
| CN106825946A (en) * | 2017-03-23 | 2017-06-13 | 叶守莉 | A kind of method that glue box are machined with laser die cutting |
| CN108068401A (en) * | 2017-12-15 | 2018-05-25 | 北京和利康源医疗科技有限公司 | For making the notch producing device of tearable mouth and double tearable mouth production methods |
| CN108215337A (en) * | 2018-01-12 | 2018-06-29 | 发泰（天津）科技有限公司 | A kind of method of the online laser printing easy-torn line of pillow type packaging bag |
-
2003
- 2003-10-23 CN CN 200310111927 patent/CN1608951A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462337B (en) * | 2007-12-20 | 2013-01-09 | 深圳富泰宏精密工业有限公司 | Process for producing molded article |
| CN102079407B (en) * | 2009-11-27 | 2014-02-19 | 深圳市大族激光科技股份有限公司 | Method for opening box by cutting packing tape with laser |
| CN104787487A (en) * | 2015-04-07 | 2015-07-22 | 大连大富塑料彩印有限公司 | Self-heating food packaging container |
| CN106825946A (en) * | 2017-03-23 | 2017-06-13 | 叶守莉 | A kind of method that glue box are machined with laser die cutting |
| CN108068401A (en) * | 2017-12-15 | 2018-05-25 | 北京和利康源医疗科技有限公司 | For making the notch producing device of tearable mouth and double tearable mouth production methods |
| CN108068401B (en) * | 2017-12-15 | 2019-09-06 | 北京和利康源医疗科技有限公司 | For make tearable mouth notch producing device and double tearable mouth production methods |
| CN108215337A (en) * | 2018-01-12 | 2018-06-29 | 发泰（天津）科技有限公司 | A kind of method of the online laser printing easy-torn line of pillow type packaging bag |
| WO2019136794A1 (en) * | 2018-01-12 | 2019-07-18 | 发泰（天津）科技有限公司 | Online laser printing method for forming tear line at pillow bag |
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