CN103522506A - Renewable liner type electromagnetic heating injection molding machine barrel - Google Patents
Renewable liner type electromagnetic heating injection molding machine barrel Download PDFInfo
- Publication number
- CN103522506A CN103522506A CN201210232061.1A CN201210232061A CN103522506A CN 103522506 A CN103522506 A CN 103522506A CN 201210232061 A CN201210232061 A CN 201210232061A CN 103522506 A CN103522506 A CN 103522506A
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- China
- Prior art keywords
- barrel
- sleeve
- electromagnetic heating
- induction coil
- material tube
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/62—Barrels or cylinders
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a renewable liner type electromagnetic heating injection molding machine barrel. The renewable liner type electromagnetic heating injection molding machine barrel comprises a barrel body, wherein a supporting framework, an induction coil and an alternating current power supply are arranged outside the barrel body; the alternating current power supply consists of a power supply, a frequency conversion circuit, a control circuit and a protection circuit; a discharge port of the barrel body is provided with a barrel body cap; the supporting framework is an electrical insulating sleeve with two open ends; the sleeve is sleeved on the outer wall of the barrel body; the induction coil is wound on the sleeve; the two ends of the induction coil are connected with the frequency conversion circuit in the alternating current power supply; the inner wall of the barrel body is connected with an inner lining sleeve through a stop key and a key slot. The renewable liner type electromagnetic heating injection molding machine barrel has high heat conversion efficiency but no thermal inertia and is safe in use; the design of an inner lining sleeve is adopted on the inner wall of the barrel body, so that the replacement is more convenient, the entire barrel is not required to be replaced, the replacement time is saved, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to plastic injection molding machine tool, particularly relate to a kind of improvement structure of injecting machine material tube.
Background technology
Traditional injecting machine material tube is mainly comprised of hopper, barrel, screw rod, barrel cap.Its weak point is at high temperature, due to the pivoting friction of screw rod and material tube inner wall, very easily produces wearing and tearing gap is increased, thereby increased injection time, affects production efficiency.Therefore in order to guarantee production efficiency, must often change whole barrel, not only waste man-hour, and increased maintenance cost.In addition, the all kinds of using aborning at present, the injection molding machine of plastic melt mode of heating of all size, all ring type electric-heating-wire-heating circle or the two half-ring electric-heating-wire-heating circle adopting around barrel, between barrel and heating wire, there is mica sheet to separate, electric heating coil heating power, transfer heat to barrel, the plastics material grain in barrel is melted.This electric heating coil heater, heat due to heating wire generation, to just can pass to barrel by multilayer mica and multi-layer air layer, and air is good adiabatic material, so this electric heating coil, thermal resistance is large, the thermal efficiency is low, and when barrel reaches design temperature, electric heating coil power-off stops heating, owing to there being larger thermal inertia, barrel within a certain period of time temperature still can continue to rise, thereby this electric heating coil heater often needs to be equipped with air-cooler, when barrel reaches design temperature, open cold blower fan is cooling by barrel, the material grain that just do not cause thawing is overheated and affect the quality of goods.
Summary of the invention
For above-mentioned the deficiencies in the prior art part, the invention provides a kind of changeable bush Electromagnetic Heating injecting machine material tube, thermal conversion efficiency is high, do not have thermal inertia, and long service life, and maintenance cost is low, can address the above problem completely.
The technical solution used in the present invention is:
A kind of changeable bush Electromagnetic Heating injecting machine material tube; comprise barrel; barrel is provided with support frame, induction coil and alternating source outward; alternating source is comprised of power supply, frequency changer circuit, control circuit and holding circuit; barrel discharging opening is provided with barrel cap; described support frame is the electric insulation sleeve of both ends open; this jacket casing is connected on barrel outer wall; induction coil is wound on sleeve; the two ends of induction coil are connected with the frequency changer circuit in described alternating source, and material tube inner wall is connected liner sleeve with keyway by locking key.
As preferably, in order to prevent that liner sleeve from moving axially, described barrel extruded stock end also coordinates liner sleeve that liner sleeve gland is installed.
As preferably, for the heat in barrel is not outwards transmitted, between described sleeve and barrel, be provided with thermal insulation layer.
As preferably, in order to adapt to barrel feed zone, the section of heating, the different requirements of discharging section to temperature, described sleeve is divided into some sections, and the number of inductive coil turns on every section of sleeve is not identical, and is connected with the alternating source of different frequency respectively.
As preferably, the outer wall of described barrel is provided with temp probe, and the lead-out wire of this temp probe is connected with the control circuit of alternating source.
The invention has the advantages that:
1. owing to being wound with the support frame of induction coil, be socketed on the barrel of injection machine, alternating current is responded to generation short circuit eddy current on barrel by induction coil generate heat barrel, electric energy is energy transform into heat energy on barrel directly, need not other material Transfer, and thermal conversion efficiency is high.
2. barrel only has heat insulation support frame and induction coil outward, as long as cut off the electricity supply, on barrel, just no longer produces short circuit eddy current, and heating can stop, and does not have thermal inertia, thereby does not need to arrange air-cooled or water cooling plant.
3. because alternating current acts directly on barrel, support frame and induction coil outside barrel do not generate heat, and therefore use fool proof.
4. can first make support frame, coiling induction coil according to the size of existing injecting machine material tube diameter, then this skeleton is socketed on barrel, need not change the structure of existing injecting machine material tube, can replace, reequip very convenient.
5. adopt segmentation coiling induction coil, can meet the different requirements of barrel charging and discharging section to temperature.
6. material tube inner wall is installed liner sleeve, and each replacing only needs to change liner sleeve, needn't change whole barrel, saves the replacing time, reduces maintenance cost, barrel long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in Figure 1, a kind of changeable bush Electromagnetic Heating injecting machine material tube, comprise barrel 1, the outer support frame that is provided with of barrel 1, induction coil 4 and alternating source 7, alternating source 7 is by power supply, frequency changer circuit, control circuit and holding circuit form, barrel 1 discharging opening is provided with barrel cap, described support frame is the electric insulation sleeve 3 of both ends open, these sleeve 3 coaxial sleeves are connected on barrel 1 outer wall, between sleeve 3 and barrel 1, be provided with thermal insulation layer 2, in order to adapt to barrel 1 feed zone, the section of heating, the different requirements of discharging section to temperature, sleeve 3 is divided into 2 to 10 sections, every section of peripheral coiling induction coil 4, induction coil 4 numbers of turn of every section of coiling increase progressively successively from charging aperture to discharging opening, make the interior temperature of barrel 1 progressively evenly increase from charging aperture to discharging opening, the two ends of induction coil 4 are connected with the frequency changer circuit in described alternating source 7, the frequency of frequency changer circuit is 15-30 kilohertz, between thermal insulation layer 2 and barrel 1, be provided with temp probe, this temp probe is welded on barrel 1 outer wall, can more accurately detect the temperature of barrel 1 interior material, the lead-out wire of temp probe is connected with the control circuit of alternating source 7.Barrel 1 inwall is connected three sections of liner sleeves 5 with keyway by locking key, each section of liner sleeve 5 can transposition, when 5 wearing and tearing of end liners sleeve are scrapped, can continue to use with liner sleeve 5 transpositions of other positions.In order to prevent that liner sleeve 5 from moving axially, described barrel 1 extruded stock end also coordinates liner sleeve 5 that liner sleeve gland 6 is installed.
Injecting machine material tube for existing electric-heating-wire-heating circle, adopt barrel mode of heating of the present invention, only need first make support frame, coiling induction coil 4 according to the size of barrel 1 diameter, again this skeleton is socketed on barrel 1, can replace the greatly convenient repacking to existing employing electric-heating-wire-heating circle injecting machine material tube.
Claims (5)
1. a changeable bush Electromagnetic Heating injecting machine material tube; comprise barrel; barrel is provided with support frame, induction coil and alternating source outward; alternating source is comprised of power supply, frequency changer circuit, control circuit and holding circuit; barrel discharging opening is provided with barrel cap; it is characterized in that: the electric insulation sleeve that described support frame is both ends open; this jacket casing is connected on barrel outer wall; induction coil is wound on sleeve; the two ends of induction coil are connected with the frequency changer circuit in described alternating source, and material tube inner wall is connected liner sleeve with keyway by locking key.
2. changeable bush Electromagnetic Heating injecting machine material tube according to claim 1, is characterized in that: described barrel extruded stock end also coordinates liner sleeve that liner sleeve gland is installed.
3. changeable bush Electromagnetic Heating injecting machine material tube according to claim 2, is characterized in that: between described sleeve and barrel, be provided with thermal insulation layer.
4. according to the changeable bush Electromagnetic Heating injecting machine material tube described in claims 1 to 3 any one, it is characterized in that: described sleeve is divided into some sections, the number of inductive coil turns on every section of sleeve is not identical, and is connected with the alternating source of different frequency respectively.
5. according to the changeable bush Electromagnetic Heating injecting machine material tube described in claims 1 to 3 any one, it is characterized in that: the outer wall of described barrel is provided with temp probe, the lead-out wire of this temp probe is connected with the control circuit of alternating source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232061.1A CN103522506A (en) | 2012-07-06 | 2012-07-06 | Renewable liner type electromagnetic heating injection molding machine barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232061.1A CN103522506A (en) | 2012-07-06 | 2012-07-06 | Renewable liner type electromagnetic heating injection molding machine barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103522506A true CN103522506A (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210232061.1A Pending CN103522506A (en) | 2012-07-06 | 2012-07-06 | Renewable liner type electromagnetic heating injection molding machine barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103522506A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985781A (en) * | 2015-08-10 | 2015-10-21 | 苏州市博奥塑胶电子有限公司 | Double-material injection molding process |
| CN105014896A (en) * | 2015-08-10 | 2015-11-04 | 苏州市博奥塑胶电子有限公司 | Injection molding process |
| CN107097392A (en) * | 2017-06-13 | 2017-08-29 | 苏州艾盾合金材料有限公司 | A kind of high precision measuring temperature extruder neck bush and its production technology |
| CN108556306A (en) * | 2018-05-14 | 2018-09-21 | 应达工业（上海）有限公司 | A kind of heavy duty barrel rotational oscillation formula induction heating system |
| CN110239005A (en) * | 2019-07-01 | 2019-09-17 | 北京中坤嘉达科技有限公司 | A kind of heating device for pipeline pipe end preheating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070235U (en) * | 1990-07-18 | 1991-01-30 | 黄福林 | Changeable bush injection hopper |
| JPH11268090A (en) * | 1998-03-24 | 1999-10-05 | Toshiba Mach Co Ltd | Method and apparatus for controlling temperature of heating barrel in injection molding machine |
| CN201056046Y (en) * | 2007-06-22 | 2008-05-07 | 邱郁彬 | Heating mechanism of charging barrel of plastic jetting-moulding machine |
| CN202764158U (en) * | 2012-07-06 | 2013-03-06 | 成都市思博睿科技有限公司 | Bushing-replaceable electromagnetic heating cylinder for injection molding machines |
| CN202764161U (en) * | 2012-07-06 | 2013-03-06 | 成都市思博睿科技有限公司 | Bushing-replaceable electromagnetic heating cylinder for injection molding machines |
| CN203198202U (en) * | 2013-05-02 | 2013-09-18 | 海宁市怡球塑业有限公司 | Heating device for machine barrel of injection molding machine |
-
2012
- 2012-07-06 CN CN201210232061.1A patent/CN103522506A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070235U (en) * | 1990-07-18 | 1991-01-30 | 黄福林 | Changeable bush injection hopper |
| JPH11268090A (en) * | 1998-03-24 | 1999-10-05 | Toshiba Mach Co Ltd | Method and apparatus for controlling temperature of heating barrel in injection molding machine |
| CN201056046Y (en) * | 2007-06-22 | 2008-05-07 | 邱郁彬 | Heating mechanism of charging barrel of plastic jetting-moulding machine |
| CN202764158U (en) * | 2012-07-06 | 2013-03-06 | 成都市思博睿科技有限公司 | Bushing-replaceable electromagnetic heating cylinder for injection molding machines |
| CN202764161U (en) * | 2012-07-06 | 2013-03-06 | 成都市思博睿科技有限公司 | Bushing-replaceable electromagnetic heating cylinder for injection molding machines |
| CN203198202U (en) * | 2013-05-02 | 2013-09-18 | 海宁市怡球塑业有限公司 | Heating device for machine barrel of injection molding machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985781A (en) * | 2015-08-10 | 2015-10-21 | 苏州市博奥塑胶电子有限公司 | Double-material injection molding process |
| CN105014896A (en) * | 2015-08-10 | 2015-11-04 | 苏州市博奥塑胶电子有限公司 | Injection molding process |
| CN107097392A (en) * | 2017-06-13 | 2017-08-29 | 苏州艾盾合金材料有限公司 | A kind of high precision measuring temperature extruder neck bush and its production technology |
| CN108556306A (en) * | 2018-05-14 | 2018-09-21 | 应达工业（上海）有限公司 | A kind of heavy duty barrel rotational oscillation formula induction heating system |
| CN108556306B (en) * | 2018-05-14 | 2023-11-14 | 应达工业（上海）有限公司 | Heavy-load charging barrel rotary oscillation type induction heating system |
| CN110239005A (en) * | 2019-07-01 | 2019-09-17 | 北京中坤嘉达科技有限公司 | A kind of heating device for pipeline pipe end preheating |
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| PB01 | Publication | ||
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Application publication date: 20140122 |