CN103950195B - Infusion bag prepared by the welding method of a kind of infusion bag flexible pipe and film material and the method - Google Patents
Infusion bag prepared by the welding method of a kind of infusion bag flexible pipe and film material and the method Download PDFInfo
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- CN103950195B CN103950195B CN201410159817.3A CN201410159817A CN103950195B CN 103950195 B CN103950195 B CN 103950195B CN 201410159817 A CN201410159817 A CN 201410159817A CN 103950195 B CN103950195 B CN 103950195B
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Abstract
The invention discloses the welding method of a kind of infusion bag flexible pipe and film material, its concrete steps comprise flexible pipe preheating, hose circumference sizing just weldering, heat seal positioning welding, welding is reinforced in heat seal and heat seal cooling and shaping welds; On the basis of heat seal positioning welding, the welding of high temperature overlap, reinforces welding region and is limited in heat seal positioning welding region, and avoid the edge in heat seal positioning welding region.Causing the film material damage of soft bag welding position in prior art during soft bag welding fabrication comparatively large, easily there is leakage in this position.Namely ensure that welded seal effect by above method, additionally reduce the damage to film material, thus reduce leakage occurrence probability.
Description
Technical field
The present invention relates to infusion bag prepared by the welding method of a kind of infusion bag flexible pipe and film material and the method.
Background technology
Infusion bag has safe ready due to it at present, and cost of manufacture is low, and is convenient to make, transport or store, and is widely used at field of medicaments.Transfusion bag body is consisted essentially of in common infusion bag, bag is made up of film material edge sealing, and bag inside comprises the chamber of one or more powder charge, and bag side is provided with the flexible pipe for dosing or transfusion, inside and outside soft pipe connection chamber, one end of flexible pipe outside is also provided with hermetically-sealed construction.
At present, flexible pipe normally adopts the mode of welding and film material sealing to be connected together, and then takes again multiple working procedure to carry out during welding, the damage in various degree of film material is often caused in welding process, even break, cause liquid to flow out in use, or liquid is infected by external environment condition.And how to avoid film material excessive damage, and ensure that again flexible pipe and bag bonding strength become when previous technical barrier.
Summary of the invention
The object of the present invention is to provide a kind of film material excessive damage of can avoiding can ensure again the infusion bag flexible pipe of weld strength and the welding method of film material, another object of the present invention is to provide a kind of infusion bag prepared by said method.
For achieving the above object, the welding method of a kind of infusion bag flexible pipe of the present invention and film material, concrete steps are as follows:
1) flexible pipe preheating, preheat temperature is 150-170 degree, and preheating time is 1-3 second;
2) hose circumference sizing just weldering, welding temperature is 135-145 degree, and weld interval is 0.5-1.5 second;
3) heat seal positioning welding, the handing-over position of low-temperature welding flexible pipe and film material, positions flexible pipe, and shapes to welding position; Welding temperature is 110-130 degree, and weld interval is 1-3 second;
4) welding is reinforced in heat seal, high temperature overlap welding on the basis of step 3) heat seal positioning welding, and described reinforcing welding region is limited in described heat seal positioning welding region, and avoids the edge in described heat seal positioning welding region; The welding temperature that welding is reinforced in described heat seal is 135-145 degree, and weld interval is 1-3 second;
5) heat seal cooling and shaping welding, to described flexible pipe weld cooling and shaping, avoids seepage; The welding temperature of described heat seal cooling and shaping welding is 40-100 degree, and weld interval is 1-5 second.
Further, described step 1) is to 5) in air source pressure on 0.6MPa.
Further, the edge 1-6mm of heat seal positioning welding welding region described in the described welding region Edge Distance reinforcing welding.
A kind of infusion bag prepared by said method.
Further, described infusion bag has the chamber of multiple powder charge, is provided with the weak welding rod for isolating between adjacent chamber.
Further, described weak welding rod is formed by weak weldering, and weak weldering temperature is 115-135 degree.
The present invention by multiple welding, and avoids bag inner chamber and junction, positioning welding position when reinforcing welding, thus effectively avoids again scalding welding junction film material.Reinforce welding also to play hose circumference secondary welding simultaneously, flexible pipe and film material junction are sealed completely, effectively avoids risk of leakage.
Accompanying drawing explanation
Fig. 1 is infusion bag structural representation of the present invention;
Fig. 2 is infusion bag flexible pipe welding region A place of the present invention cutaway view Amplified image.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
A welding method for infusion bag flexible pipe and film material, concrete steps are as follows:
1) flexible pipe preheating, preheat temperature is 150-170 degree, and preheating time is 1-3 second.
This step can take indirect or direct-fired mode.Flexible pipe welding at later stage and film material is conducive to the abundant preheating of flexible pipe.
2) hose circumference sizing just weldering, welding temperature is 135-145 degree, and weld interval is 0.5-1.5 second.
This step main purpose and effect are to carry out Primary Location and sizing to flexible pipe.Generally, what periphery weld mold adopted is unitary mould, namely one set of die makes multiple sack simultaneously, influence each other between sack during welding, when a sack flexible pipe welding precision is defective, the welding precision of sacks all under causing this unitary mould is defective, in the prior art, flexible pipe prepattern welds with regard to direct mold, and the position simultaneously limiting all flexible pipes in welding process is comparatively difficult, then efficiently solves the problems referred to above by this step.While improve flexible pipe welding precision, it also avoid influencing each other between flexible pipe.
3) heat seal positioning welding, the handing-over position of low-temperature welding flexible pipe and film material, positions flexible pipe, and shapes to welding position; Welding temperature is 110-130 degree, and weld interval is 1-3 second.
Adopt low-temperature welding flexible pipe mouth of pipe handing-over position, thus directly reduce the damage of welding to handing-over position film material, flexible pipe is further located and shapes.
Time in prior art owing to carrying out reality weldering to this flexible pipe position, welding face width, temperature is high, larger to the damage of film material.And the nisi real weldering of this step, temperature is lower, thus drops to minimum by the film material damage of welding process to flexible pipe position.
4) welding is reinforced in heat seal, and on the basis of step 3) heat seal positioning welding, the welding of high temperature overlap, reinforces welding region and be limited in heat seal positioning welding region, and avoid the edge in heat seal positioning welding region; The welding temperature that welding is reinforced in heat seal is 135-145 degree, and weld interval is 1-3 second.
As shown in Figure 2, heat seal reinforce welding the heat seal positioning welding of welding region 3 in last process welding region 2 within but less, welding region 2 edge reinforcing the welding region 3 Edge Distance heat seal positioning welding of welding is 1-6mm, thus avoid scalding the secondary of film material 6, serve the sealing completely to flexible pipe 7 and film material simultaneously.
5) heat seal cooling and shaping welding, to flexible pipe weld cooling and shaping, avoids seepage; The welding temperature of heat seal cooling and shaping welding is 40-100 degree, and weld interval is 1-5 second; Effectively avoid risk of leakage.
In addition, step 1) is to 5) in air source pressure control at 6KG or more than 0.6MPa.
As shown in Figure 1, a kind of infusion bag 1 prepared by said method, infusion bag has film material 6 edge sealing to make.Infusion bag 1 has the chamber 5 of multiple powder charge, infusion bag is provided with infusion port 11 and dosing mouth 8, and infusion port is all connected with chamber 5 inside by flexible pipe 7 with on dosing mouth.The weak welding rod 4 for isolating is provided with between adjacent chamber.Weak welding rod 4 is formed by weak weldering, and weak weldering temperature is 115-135 degree.
Causing the film material damage of soft bag welding position in prior art during soft bag welding fabrication comparatively large, easily there is leakage in this position.Namely ensure that welded seal effect by above method, additionally reduce the damage to film material, thus reduce leakage occurrence probability.
Claims (3)
1. a welding method for infusion bag flexible pipe and film material, is characterized in that, its concrete steps are as follows:
1) flexible pipe preheating, preheat temperature is 150-170 degree, and preheating time is 1-3 second;
2) hose circumference sizing just weldering, welding temperature is 135-145 degree, and weld interval is 0.5-1.5 second;
3) heat seal positioning welding, the handing-over position of low-temperature welding flexible pipe and film material, positions flexible pipe, and shapes to welding position; Welding temperature is 110-130 degree, and weld interval is 1-3 second;
4) welding is reinforced in heat seal, high temperature overlap welding on the basis of step 3) heat seal positioning welding, and described reinforcing welding region is limited in described heat seal positioning welding region, and avoids the edge in described heat seal positioning welding region; The welding temperature that welding is reinforced in described heat seal is 135-145 degree, and weld interval is 1-3 second;
5) heat seal cooling and shaping welding, to described flexible pipe weld cooling and shaping, avoids seepage; The welding temperature of described heat seal cooling and shaping welding is 40-100 degree, and weld interval is 1-5 second.
2. welding method as claimed in claim 1, it is characterized in that, described step 1) is to 5) in air source pressure at more than 0.6Mpa.
3. welding method as claimed in claim 1, is characterized in that, the edge 1-6mm of heat seal positioning welding welding region described in the described welding region Edge Distance reinforcing welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159817.3A CN103950195B (en) | 2014-04-21 | 2014-04-21 | Infusion bag prepared by the welding method of a kind of infusion bag flexible pipe and film material and the method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159817.3A CN103950195B (en) | 2014-04-21 | 2014-04-21 | Infusion bag prepared by the welding method of a kind of infusion bag flexible pipe and film material and the method |
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| Publication Number | Publication Date |
|---|---|
| CN103950195A CN103950195A (en) | 2014-07-30 |
| CN103950195B true CN103950195B (en) | 2016-02-24 |
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| CN201410159817.3A Active CN103950195B (en) | 2014-04-21 | 2014-04-21 | Infusion bag prepared by the welding method of a kind of infusion bag flexible pipe and film material and the method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005324419A (en) * | 2004-05-13 | 2005-11-24 | Ajinomoto Co Inc | Method for welding film and structure, welding mold, method for producing medical bag, and medical bag |
| CN1799942A (en) * | 2006-01-12 | 2006-07-12 | 长沙楚天科技有限公司 | Supersonic wave welding and sealing connection method for medicine mouthpiece and assembled lid |
| CN1874882A (en) * | 2003-10-30 | 2006-12-06 | 3L路德维格森有限公司 | Tube welding |
| CN102090976A (en) * | 2011-01-19 | 2011-06-15 | 四川科伦药业股份有限公司 | Three-cavity sterile bag and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7964829B2 (en) * | 2006-12-20 | 2011-06-21 | Tyco Healthcare Group Lp | Apparatus and method for making bag assembly |
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2014
- 2014-04-21 CN CN201410159817.3A patent/CN103950195B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874882A (en) * | 2003-10-30 | 2006-12-06 | 3L路德维格森有限公司 | Tube welding |
| JP2005324419A (en) * | 2004-05-13 | 2005-11-24 | Ajinomoto Co Inc | Method for welding film and structure, welding mold, method for producing medical bag, and medical bag |
| CN1799942A (en) * | 2006-01-12 | 2006-07-12 | 长沙楚天科技有限公司 | Supersonic wave welding and sealing connection method for medicine mouthpiece and assembled lid |
| CN102090976A (en) * | 2011-01-19 | 2011-06-15 | 四川科伦药业股份有限公司 | Three-cavity sterile bag and preparation method thereof |
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| CN103950195A (en) | 2014-07-30 |
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