CN203901691U - Electromagnetic heating film blowing machine - Google Patents
Electromagnetic heating film blowing machine Download PDFInfo
- Publication number
- CN203901691U CN203901691U CN201420243999.8U CN201420243999U CN203901691U CN 203901691 U CN203901691 U CN 203901691U CN 201420243999 U CN201420243999 U CN 201420243999U CN 203901691 U CN203901691 U CN 203901691U
- Authority
- CN
- China
- Prior art keywords
- die head
- machine barrel
- induction coil
- electromagnetic heating
- controllers
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
Abstract
The utility model relates to an electromagnetic heating film blowing machine which comprises a control cabinet, a machine cylinder, a plurality of machine cylinder induction coils, a die head vertically connected with the machine cylinder, a die head induction coil, and a plurality of first controllers and second controllers, wherein the machine cylinder induction coils are twisted on the machine cylinder at intervals; the die head induction coil is twisted on a die head; the first controllers are in one-to-one correspondence with the machine cylinder induction coils; each first controller is connected with and controls each corresponding machine cylinder induction coil through a cable; the second controllers are connected with and control the die head induction coil through cables; the control cabinet simultaneously controls the first controllers and the second controllers through cables. The electromagnetic heating film blowing machine has the benefits that heat sources of the overall film blowing machine come from an electromagnetic heating device, an electromagnetic induction coil sleeves the machine cylinder and the die head to be subjected to the electromagnetic heating, and the heat preservation can be implemented by using a heat preservation material, so that the equipment heating efficiency is greatly improved, and the energy is saved.
Description
Technical field
The utility model relates to a kind of membrane production equipment, relates in particular to a kind of Electromagnetic Heating inflation film manufacturing machine.
Background technology
Traditional inflation film manufacturing machine, the main thermal source of its plastic sheeting blowing processing comes from electric heating coil heating, be transmitted to again on barrel, in this process, the heat that only abuts against barrel surface inner ring is transmitted on barrel, and the heat major part of outer ring is lost in air, causes the loss of heat, and cause environment temperature to rise.Another shortcoming of Resistant heating is exactly that power density is low, needs the heating occasion that temperature is higher to adapt at some.Because adopting contact heating mode, may there is heating non-uniform phenomenon in barrel periphery, and operation part is in high temperature all the time, and service life is limited, and maintenance capacity is large.
Chinese patent CN 203331411 U have proposed a kind of inflation film manufacturing machine, the heater of the extruder of this inflation film manufacturing machine adopts the mode of Electromagnetic Heating to heat, not only can regulate temperature and motor speed according to different film kinds, and than common heating device and motor power saving more, more energy-conservation.
But the structure of this inflation film manufacturing machine can also be further improved, the die head of this inflation film manufacturing machine also can adopt induction coil to carry out Electromagnetic Heating, and the heater of extruder can adopt multisection type heating.
Utility model content
The technical problems to be solved in the utility model is further to improve the heater of existing inflation film manufacturing machine extruder and die head, and a kind of Electromagnetic Heating inflation film manufacturing machine is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of Electromagnetic Heating inflation film manufacturing machine, comprise switch board, machine barrel, machine barrel induction coil, with described machine barrel die head connected vertically, also comprise die head induction coil, multiple the first controllers, second controller, described machine barrel induction coil has multiple, described multiple machine barrel induction coils interval is wrapped on described machine barrel, described die head induction coil is wrapped on described die head, described multiple the first controller is corresponding one by one with described multiple machine barrel induction coils, each described the first controller connects by cable and controls with it corresponding described machine barrel induction coil, described second controller connects by cable and controls described die head induction coil, described switch board is controlled described multiple the first controller and described second controller by cable simultaneously.
Preferably, described machine barrel comprises the screw rod of hollow, and described screw surface is covered with one deck insulation heat preservation layer, and the described multiple machine barrel induction coil correspondences that are wrapped on described machine barrel are provided with multiple blower fans for dispelling the heat.
Preferably, described die head is spiral mandrel die, and the skin of described die head is coated with the outer die body for thermal insulating.
Preferably, described multiple machine barrel induction coil is spaced set.
Preferably, described multiple machine barrel induction coil and described die head induction coil all adopt ceramic material and high-temperature cable to be prepared from.
The beneficial effect that enforcement the utility model reaches is: this Electromagnetic Heating inflation film manufacturing machine has improved the die head of existing inflation film manufacturing machine, die head also adopts electromagnetic heater as thermal source, the electromagnetic heater of machine barrel adopts multisection type heating, the thermal source that is to say whole inflation film manufacturing machine all comes from electromagnetic heater, on machine barrel and die head, superscribe one deck heat-insulating heat-preserving material, again electromagnetic induction coil is enclosed within on machine barrel and die head, avoid destroying existing equipment structure, improve greatly the thermal efficiency of equipment heating, can significantly reduce the raw material preheating time, save the energy.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the overall structure figure of the embodiment 1 of the utility model Electromagnetic Heating inflation film manufacturing machine;
Fig. 2 is the structural representation of the extruder in the embodiment 1 of the utility model Electromagnetic Heating inflation film manufacturing machine;
Fig. 3 is the structural representation of the die head assembly in the embodiment 1 of the utility model Electromagnetic Heating inflation film manufacturing machine.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further explained to explanation:
Embodiment 1
As shown in Figure 1, a kind of overall structure figure of energy-saving electromagnetic heating inflation film manufacturing machine, inflation film manufacturing machine mainly comprises three parts: extruder, die head assembly and forming assembly.
Wherein, as shown in Figure 2, extruder comprises switch board 1, loading hopper 2, machine barrel 4, machine barrel induction coil 3, swivel joint 19, flow distribution plate 22, connecting mold flange 23, motor 25, as shown in Figure 3, die head assembly comprises die head 6 and die head induction coil 7, die head 6 comprises lower cover 13, outer film body 14, conveyor screw 15, upper press cover 16, adjustable ring 17, mouthful mould 18, and forming assembly comprises vane 8, chevron shaped clamping plate 9, carry-over pinch rolls 10, coiling machine 11, blown film film bubble 12.Wherein, connecting mold flange 23 is the attaching parts of extruder and die head assembly, and vane 8 is the attaching parts of die head assembly and forming assembly.
In the present embodiment, machine barrel induction coil 3 has three, three machine barrel induction coil 3 equi-spaced apart are wrapped on machine barrel 4, and die head induction coil 7 is wrapped on die head 6, three the first controllers 51 are corresponding one by one with three the first controllers, three the first controllers 51 connect by cable and control corresponding with it machine barrel induction coil 3, and second controller 52 connects by cable and controls die head induction coil 7, and switch board 1 is controlled three the first controllers 51 and second controller 52 by cable simultaneously.
In the present embodiment, machine barrel 4 comprises the screw rod 20 of hollow, and screw rod 20 surfaces are covered with one deck insulation heat preservation layer 21, and 3 machine barrel induction coil 3 correspondences that are wrapped on machine barrel 4 are provided with three blower fans 24 for dispelling the heat.
In the present embodiment, die head 6 is spiral mandrel die, and the skin of die head 6 is coated with the outer die body 14 for thermal insulating.
The Electromagnetic Heating inflation film manufacturing machine of the present embodiment, film-blowing process is upper blowing method, starts to add man-hour, and raw metal enters in machine barrel 4 by loading hopper 2, and then, through screw rod 20 conveyings, melting, mixing, the gas producing is discharged by blower fan 24; Leading portion, stage casing and the back segment of screw rod 20 are all wound with machine barrel induction coil 3, machine barrel induction coil 3 is a kind of devices that utilize electromagnetic induction principle to convert electrical energy into heat energy: by 220V or 380V, the alternating current of 50Hz converts the high-frequency high-voltage that frequency is 20-40KHz to, the high-frequency high-voltage current changing at a high speed flows through induction coil can produce the alternating magnetic field changing at a high speed, when the magnetic line of force in magnetic field can produce countless little eddy current during by magnetic conductive metal raw material in metallic object, make raw metal fast heating voluntarily itself, thus heating of metal raw material.Coordinate dynamical attemperator simultaneously, at utmost lower thermal losses.Motlten metal raw material enters in die head 6 from extruder is extruded, with flowing of suitable flow rate uniformity, the spiral runner of design strictly limits flowing of motlten metal raw material, extruder is produced to desirable counter-pressure, meanwhile, die head induction coil 7 is wrapped on outer film body 14 raw metal is realized to heating and temperature control flexibly.Motlten metal raw material is extruded rear formation pipe embryo from the membrana oralis 18 of die head 6, then under die head 6 air inlets and vane 8 cooling effects, be blown into immediately blown film film bubble 12, by cross directional stretch, through chevron shaped clamping plate 9 grippings, while by longitudinal stretching, is wound into end article finally by coiling machine 11 under the effect of carry-over pinch rolls 10.
The first controller 51 and second controller 52 are respectively used to control machine barrel induction coil 3 and die head induction coil 7, and the induction coil number of turns directly affects its inductance value and electric current, need test its inductance value with secohmmeter, and inductance is mated with main engine power.
Under 380V, the corresponding relation of main engine power and inductance value and single line electric current is as following table:
The corresponding relation of table 1 main engine power and inductance value and single line electric current
| Power | The inductance value (uH) mating | Single line current range (A) |
| 5KW | 150-180uH | 6-7.5A |
| 8KW | 130-140uH | 8-11.5A |
| 15KW | 250-260uH | 18-22A |
| 25KW | 190-210uH | 33-38A |
| 40KW | 150-160uH | 55-60A |
The heating major way of existing inflation film manufacturing machine is electric heating coil heating, then is transmitted on barrel, has heat conduction loss, and causes environment temperature to rise.The heat that only abuts against barrel inner ring is transmitted on barrel, and the heat major part of outer ring is lost in air, causes the loss of heat.And electromagnetic heating technique is to make metal barrel self-heating, and barrel outside is wrapped in again heat-insulating heat-preserving material, greatly reduce heat conduction loss and heat scattering and disappearing to air, improve the thermal efficiency, avoid the rising of environment temperature, the thermal efficiency can reach more than 95%, shorten 2/3 preheating time, therefore power savings is very remarkable, can reach 30%-75%, and because electromagnetic heating coil itself is not generated heat, adopt ceramic material and high-temperature cable preparation, so do not exist the resistance wire of former electric heating coil to be oxidized and the problem of reduction of service life under the condition of high temperature, there is long service life, heating rate is fast, the advantage such as need not keep in repair, reduce maintenance time, reduce cost, improve product competitiveness, for enterprise has brought huge economic benefit.
It should be noted that this Electromagnetic Heating inflation film manufacturing machine can adjust according to output and extruder power the efficiency of heating surface of electromagnetic induction coil, and feed back to switch board 1 and can realize the closed-loop control of Electromagnetic Heating in conjunction with temperature probe and other thermometric modes.
Embodiment 2
Most of assembly of the Electromagnetic Heating inflation film manufacturing machine of the present embodiment is identical with embodiment 1, different is the screw rod employing five-part form heating of machine barrel, corresponding comprise five machine barrel induction coils, corresponding is to comprise five the first controllers and five blower fans with it, and the die head adopting is cross type die head, other are identical with embodiment 1.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (5)
1. an Electromagnetic Heating inflation film manufacturing machine, comprise switch board (1), machine barrel (4), machine barrel induction coil (3), with described machine barrel (4) die head connected vertically (6), it is characterized in that, also comprise die head induction coil (7), multiple the first controllers (51), second controller (52), described machine barrel induction coil (3) has multiple, described multiple machine barrel induction coils (3) interval is wrapped on described machine barrel (4), described die head induction coil (7) is wrapped on described die head (6), described multiple the first controllers (51) are corresponding one by one with described multiple machine barrel induction coils (3), each described the first controller (51) connects by cable and controls with it corresponding described machine barrel induction coil (3), described second controller (52) connects by cable and controls described die head induction coil (7), described switch board (1) is controlled described multiple the first controllers (51) and described second controller (52) by cable simultaneously.
2. Electromagnetic Heating inflation film manufacturing machine according to claim 1, it is characterized in that, described machine barrel (4) comprises the screw rod (20) of hollow, described screw rod (20) surface is covered with one deck insulation heat preservation layer (21), and described multiple machine barrel induction coils (3) correspondence being wrapped on described machine barrel (4) is provided with multiple blower fans (24) for dispelling the heat.
3. Electromagnetic Heating inflation film manufacturing machine according to claim 2, is characterized in that, described die head (6) is spiral mandrel die, and the skin of described die head (6) is coated with the outer die body (14) for thermal insulating.
4. Electromagnetic Heating inflation film manufacturing machine according to claim 3, is characterized in that, described multiple machine barrel induction coils (3) are spaced sets.
5. Electromagnetic Heating inflation film manufacturing machine according to claim 4, is characterized in that, described multiple machine barrel induction coils (3) and described die head induction coil (7) all adopt ceramic material and high-temperature cable to be prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243999.8U CN203901691U (en) | 2014-05-13 | 2014-05-13 | Electromagnetic heating film blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243999.8U CN203901691U (en) | 2014-05-13 | 2014-05-13 | Electromagnetic heating film blowing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203901691U true CN203901691U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243999.8U Expired - Fee Related CN203901691U (en) | 2014-05-13 | 2014-05-13 | Electromagnetic heating film blowing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203901691U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946212A (en) * | 2016-06-29 | 2016-09-21 | 浙江汇锋薄膜科技有限公司 | Film blowing machine provided with improved drawing mechanism |
| CN106239867A (en) * | 2016-08-31 | 2016-12-21 | 瑞安市泓博塑业有限公司 | A kind of inflation film manufacturing machine of the controlled feeding of processing film device-specific |
| CN106793218A (en) * | 2017-01-23 | 2017-05-31 | 苏州科弗曼机械有限公司 | A kind of on-line heating device of metal hot-working |
| CN107383536A (en) * | 2017-08-05 | 2017-11-24 | 福建师范大学 | The preparation method and device of a kind of photocatalysis film |
-
2014
- 2014-05-13 CN CN201420243999.8U patent/CN203901691U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946212A (en) * | 2016-06-29 | 2016-09-21 | 浙江汇锋薄膜科技有限公司 | Film blowing machine provided with improved drawing mechanism |
| CN105946212B (en) * | 2016-06-29 | 2018-07-10 | 浙江汇锋薄膜科技有限公司 | The inflation film manufacturing machine of haulage gear with improvement |
| CN106239867A (en) * | 2016-08-31 | 2016-12-21 | 瑞安市泓博塑业有限公司 | A kind of inflation film manufacturing machine of the controlled feeding of processing film device-specific |
| CN106793218A (en) * | 2017-01-23 | 2017-05-31 | 苏州科弗曼机械有限公司 | A kind of on-line heating device of metal hot-working |
| CN107383536A (en) * | 2017-08-05 | 2017-11-24 | 福建师范大学 | The preparation method and device of a kind of photocatalysis film |
| CN107383536B (en) * | 2017-08-05 | 2020-10-30 | 福建师范大学 | Preparation method and device of photocatalytic film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |