CN201427684Y - Sealing and bonding device for aluminum-plastic paper composite packing material - Google Patents
Sealing and bonding device for aluminum-plastic paper composite packing material Download PDFInfo
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- CN201427684Y CN201427684Y CN2009200473122U CN200920047312U CN201427684Y CN 201427684 Y CN201427684 Y CN 201427684Y CN 2009200473122 U CN2009200473122 U CN 2009200473122U CN 200920047312 U CN200920047312 U CN 200920047312U CN 201427684 Y CN201427684 Y CN 201427684Y
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- ferrite member
- frequency ferrite
- induction coil
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Abstract
The utility model relates to a sealing and bonding device for aluminum-plastic paper composite packing material. The device is arranged on a pressing mechanism of a sealing machine and comprises a first high-frequency ferrite component, a second high-frequency ferrite component, an induction coil and a high-frequency induction circuit, wherein a closed magnetic circuit is formed by the first high-frequency ferrite component and the second high-frequency ferrite component; the induction coil is wound on the first high-frequency ferrite component; the high-frequency induction circuit is connected with the induction coil; the second high-frequency ferrite component is arranged at the opening end of the first high-frequency ferrite component; and a gap is left between the second high-frequencyferrite component and the opening end. The device has the advantages that the boundary of the heating surface is clear, so as to form a heating target area which can be set; the heat can be directlygenerated on aluminum foil, so that the heating is fast, the heat efficiency is high, and the price advantage is obvious; in addition, the clamping surface can be filled with a soft thin pad, so thatthe bonding surface of the packing material is flat and uniform, the outer surface of the packing material is not damaged, and the bonding quality is good and steady.
Description
Technical field
The utility model relates to the sealing tech of packing, relates in particular to the sealing opening of aluminum-plastic paper composite packaging material bonder.
Background technology
Aluminum-plastic paper composite packaging material is a kind of packing that are used for the aseptic carton of liquid beverage, and about 0.3 millimeter of thickness generally has seven layers from the inside to surface: PE, aluminium film, PE, ply of paper 1, ply of paper 2, colored printing, PE.PE is a polyacrylic film, fusion in the time of about 130 ℃; The aluminium film be used for shield lights and the blocking-up oxygen enter in the box.This kind aseptic packaging is that normal temperature is preserved, and sealing tech is had relatively high expectations.One sheet of planar packaging material, three places bonding (be referred to as and seal) can make box-like, and wherein two places are before can, and a place is after can.In fully-automatic packaging is produced, seal the time requirement weak point, otherwise can influence complete machine output.That sealing part is generally is wide 5 millimeters, be about the long narrow adhesive surface that the 100-200 millimeter does not wait.
Traditional sealing method generally has following several:
1. hot iron is scalded, and temperature booster is made strip, is pressed in to want bonding packaging material outside face, and heat conducts to nexine by ply of paper, aluminium lamination, and PE is melted.Bonding in order to finish fast, must improve heter temperature.This technology at first scorches the PE layer on surface, even the impaired jaundice of ply of paper, influences product appearance.Be scheme early stage in the industry, cost is lower, now still has use.
2. air cooking mainly is used on the multistation manufacturing line: concentrate heating to want bonding zone with 170 degrees centigrade hot air on the station in front, clamp packaging material while hot at next station, finish bonding.Can be used for making sylphon, can the sealing process behind the liquid beverage, then inapplicable.Because there is liquid in bonding zone, can not be heated to 100 degree by hot blast.Hot blast mode, heat utilization ratio are very low, can by packaging material absorb very limited, so the machine heating power designs very greatly.In order to accelerate complete machine speed, arrange a plurality of hot blast stations possibly, to reduce single station time.Make machine complicated.
3. super sonic seals, and ultrasonic welding is widely used in the electronic component manufacturing, fields such as plastic product welding.Super sonic acts on the contact surface place of material, realizes welding according to the heat that the high speed Micro Lub produces.Be used for plastic-aluminum paper bag material and be bonded with following difficult point: the ultra-sonic welded mould is the crust of aluminum, realize equalization of pressure everywhere in long narrow zone, part processing is required high: have local pressure unreal, just do not weld.The plastic-aluminum paper material is very thin, and pressure is excessive, can damage packaging material.This mode is sealed, and the closing machine that has adopted, but the qualification rate of product is not easy assurance, and the closing device price is higher, homemade ultrasonic sealing machine: 8,000 yuan,
4. high-frequency heating is used for reference the induction heating plant that is used for heat treatment or welding in the machinery manufacturing industry.Inductor with copper pipe is made by D' Arsonval current, produces high frequency magnetic field at the inductor surrounding space, and the conductive material inside that is in the high frequency magnetic field can induce high-frequency currents, and makes the sensed current flow heats of conductive material.The merchandizing type of this machine generally is to be used for mechanical component heat treatment or welding.Capacity usage ratio is not high, and machine will use cooling water expansion tank.Existing market has also occurred according to above-mentioned heating arrangement structure and inductor has been done forr a short time a kind of bonding induction heating plant of sealing opening of aluminum-plastic paper composite packaging material that is used for, because high-frequency energy adopts the air coupling, seal peak width in 20 millimeter, again little fillet district is irrealizable, and inductor will use cooling water expansion tank, about 10,000 yuan of the prices of the high homemade high-frequency induction capper of cost.
Summary of the invention
Main purpose of the present utility model is centralized heat energy that high-frequency induction the is produced long narrow target target area in appointment, the purpose of this utility model also is to improving the degree of utilization of high-frequency energy, do not need water cooling, effectively reduce the high frequency circuit consumed power, cost is low.
Above-mentioned purpose is implemented by following technical proposals:
The sealing opening of aluminum-plastic paper composite packaging material bonder is installed on the hold-down mechanism of corresponding capper, the induction coil that comprises the first high frequency ferrite member, the second high frequency ferrite member of forming closed magnetic circuit and be wrapped on the first high frequency ferrite member reaches and induction coil bonded assembly high-frequency induction circuit, the second high frequency ferrite member places the open end of the first high frequency ferrite member, and has a slit with this open end.
Further design is, the first high frequency ferrite member adopts U font structure, the second high frequency ferrite member adopts the in-line structure, and place the U-shaped open upper side of the first high frequency ferrite member, induction coil is wrapped on the lateral column of the second high frequency ferrite member of this U font, and described first high frequency ferrite member and the described second high frequency ferrite member are formed closed magnetic circuit.
Further design is, described high-frequency currents generation circuit comprises rectifier bridge BD, filter inductance L1, filter capacitor C1, resonant capacitance C2, induction coil L2, damper tube D and power tube IGBT pipe, damper tube D is attempted by the C of IGBT pipe, the E utmost point, the C utmost point of IGBT pipe is connected in series resonant capacitance C2 connected with each other and induction coil L2 successively, filter inductance L1 is connected with the output hot end of rectifier bridge BD, the E utmost point of IGBT pipe is connected with the output cold end of rectifier bridge BD, filter capacitor C1 one end is connected with the output cold end of rectifier bridge BD, and an end is connected with the serial connection point of filter inductance L1 with resonant capacitance C2.
The utility model adopts high frequency ferrite to form heater element jointly as the aluminium foil in magnetic conductive media (being the magnetic flux member) and the packaging material, produce such beneficial effect thus: heating surface accurately concentrates on the transversal surface of magnetic circuit, can setting of the size of its area of heating and shape by designing, the heating target target area that heating surface sharpness of border, formation can be set.Simultaneously owing to adopt induction heating mode, the incomparable advantage of other modes is arranged: heat directly produces on the in-to-in aluminium foil, rather than from exterior conductive enter (bad conductor that ply of paper is heat), heating rapidly, the heat efficiency height.In addition, clamping surface can add the thin pad of flexible material, makes the packaging material bonding plane docile, even, does not damage the packaging material outside face, and bonding quality is good and stable.The more important thing is that the utility model product is compared with the heating arrangement of other schemes, the cost performance height, super sonic mode or induction heating plant have absolute price advantage especially relatively.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a high-frequency currents generation circuit.
Among the figure, 1 first ferrite member, 2 second ferrite member, 3 hold-down mechanisms, 4 high-frequency currents generation circuit, 6 aluminum-plastic paper composite packaging materials, 7 heating target areas.
The specific embodiment
Referring to Fig. 1, coil L1 is wrapped on first ferrite member 1, is connected with high-frequency currents in it, and this high-frequency currents produces magnetic flux Φ in the magnetic circuit that is made of first ferrite member 1 and second ferrite member 2.
This closing device is installed on the hold-down mechanism 5 of corresponding capper, mainly is made up of the first high frequency ferrite member 1, the second high frequency ferrite member 2 and induction coil 3 and high-frequency induction circuit 4.Wherein the first high frequency ferrite member 1 and the second high frequency ferrite member 2 can form a closed magnetic circuit each other.
The first high frequency ferrite member 1 is a U word shape structure, is fixed on the fixed end of the hold-down mechanism 5 of corresponding capper.Induction coil L1 is wrapped on the lateral column of this U font second high frequency ferrite member.Induction coil L1 is connected with the high-frequency induction circuit 4 that produces high-frequency currents.The second high frequency ferrite member 2 is the in-line structure, is fixed on the moved end of the hold-down mechanism 5 of corresponding capper.And place the U-shaped open upper side of the first high frequency ferrite member 1, with the gap delta of the second high frequency ferrite member 2 be 0.5～2mm.This gap is mainly decided according to the thickness of packing and cushion, and is controlled by hold-down mechanism 5.Like this, the formation width between the first high frequency ferrite member 1 and the second high frequency ferrite member 2 is S=5mm, and length is the heating target target area of L=100mm.
Referring to Fig. 2, high-frequency induction circuit 4 mainly is made up of rectifier bridge BD, filter inductance L1, filter capacitor C1, induction coil L2, resonant capacitance C2, damper tube D and power tube IGBT pipe.Damper tube D is attempted by C, the E utmost point of power tube IGBT, the C utmost point of power tube IGBT is connected in series resonant capacitance C2 connected with each other successively and is connected with the output hot end of rectifier bridge BD with induction coil L2, filter inductance L1, the E utmost point of IGBT pipe is connected with the output cold end of rectifier bridge BD, filter capacitor C1 one end is connected with the output cold end of rectifier bridge BD, and an end is connected with the serial connection point of filter inductance with resonant capacitance.
When above-mentioned closing device was worked, driving circuit was sent driving pulse, makes the power tube saturation conduction, and filter capacitor two ends 300V voltage constitutes the loop by induction coil, power tube.In induction coil, produce the conducting electric current.Driving pulse finishes in good time, and power tube ends.Electric current can not suddenly change in the induction coil, will charge to resonant capacitance.After charging finished, the magnetic energy in the induction coil changed the electric energy in the resonant capacitance into.The resonant capacitance electric energy by the induction coil discharge, produces the back discharge electric current again.After the discharge, the electric energy of electric capacity becomes magnetic energy again.After the vibration of one-period.Because of the existence of damper tube, no longer continue, wait for that driving pulse arrives next time, the working process above repeating carries out resonance.
Change the width of driving pulse, can realize the adjusting of horsepower output.Induction coil is during near heated packaging material, and inductance value is different; The width of driving pulse also is adjustable.So main frequency of operation can not be a fixed frequency.Main resonance just finishes, and driving pulse could arrive next time, therefore needs synchronization control circuit to control.Synchronization control circuit and power control, logic control, low potential source etc. are served the auxiliary circuit principle of power circuit, belong to conventional electrical circuit knowledge.Here be not described in detail.
With closing device of the present utility model aluminum-plastic paper composite packaging material is sealed, its bonding quality is good, bonding designated area sharpness of border, more outstanding is, this closing device assessment version in kind, and cost is very cheap, the only hundreds of units of its manufacturing cost have good market outlook.
Claims (3)
1. sealing opening of aluminum-plastic paper composite packaging material bonder, be installed on the cooresponding capper, the induction coil that it is characterized in that comprising the first high frequency ferrite member, the second high frequency ferrite member of forming closed magnetic circuit and be wrapped on the first high frequency ferrite member reaches and induction coil bonded assembly high-frequency induction circuit, the second high frequency ferrite member places the open end of the first high frequency ferrite member, and has a slit with this open end.
2. sealing opening of aluminum-plastic paper composite packaging material bonder according to claim 1, it is characterized in that the described first high frequency ferrite member adopts U font structure, the second high frequency ferrite member adopts the in-line structure, and place the U-shaped open upper side of the first high frequency ferrite member, induction coil is wrapped on the lateral column of the second high frequency ferrite member of this U font, and described first high frequency ferrite member and the described second high frequency ferrite member are formed closed magnetic circuit.
3. sealing opening of aluminum-plastic paper composite packaging material bonder according to claim 2, it is characterized in that described high-frequency currents generation circuit comprises rectifier bridge BD, filter inductance L1, filter capacitor C1, resonant capacitance C2, induction coil L2, damper tube D and power tube IGBT, damper tube D is attempted by the C of IGBT pipe, the E utmost point, the C utmost point of power tube IGBT is connected in series resonant capacitance C2 connected with each other and induction coil L2 successively, filter inductance L1 is connected with the output hot end of rectifier bridge BD, the E utmost point of IGBT pipe is connected with the output cold end of rectifier bridge BD, filter capacitor C1 one end is connected with the output cold end of rectifier bridge BD, and an end is connected with the serial connection point of filter inductance with resonant capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200473122U CN201427684Y (en) | 2009-07-14 | 2009-07-14 | Sealing and bonding device for aluminum-plastic paper composite packing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200473122U CN201427684Y (en) | 2009-07-14 | 2009-07-14 | Sealing and bonding device for aluminum-plastic paper composite packing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201427684Y true CN201427684Y (en) | 2010-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200473122U Expired - Fee Related CN201427684Y (en) | 2009-07-14 | 2009-07-14 | Sealing and bonding device for aluminum-plastic paper composite packing material |
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| CN (1) | CN201427684Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494698A (en) * | 2016-12-09 | 2017-03-15 | 重庆锦沙沣包装有限公司 | The cutting sealed all-in-one of packaging bag |
-
2009
- 2009-07-14 CN CN2009200473122U patent/CN201427684Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494698A (en) * | 2016-12-09 | 2017-03-15 | 重庆锦沙沣包装有限公司 | The cutting sealed all-in-one of packaging bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20110714 |