CN102642294B - Extrusion plasticizing screw rod - Google Patents
Extrusion plasticizing screw rod Download PDFInfo
- Publication number
- CN102642294B CN102642294B CN201210127117.7A CN201210127117A CN102642294B CN 102642294 B CN102642294 B CN 102642294B CN 201210127117 A CN201210127117 A CN 201210127117A CN 102642294 B CN102642294 B CN 102642294B
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- CN
- China
- Prior art keywords
- screw rod
- barrel
- pulverizing
- plasticator
- heat pipe
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention relates to a kind of pulverizing Plasticator extrusion plasticizing screw rod, this screw rod is located in the barrel of melting appartus, and screw rod is varying pitch screw, and the pitch of screw rod is being close on hopper mouth to the direction of barrel discharging opening by large and little.The blanking difficulty that the present invention exists by adopting the screw rod of varying pitch to solve prior art, and then can only shut down and carry out the problems such as labor cleaning.By adopting internal diameter to become large screw rod gradually, solving foamed plastic that prior art exists and melt comparatively slow in barrel or the problem such as thoroughly can not to melt.By adopting, there is the screw rod of hollow part and/or continuous heat pipe, solving problems such as can not thoroughly melting further.By adopting the moving knife of non-rectilinear distribution, solve that prior art exists when running into respective thickness and the larger foamed plastic of volume, the problems such as the instantaneous load of pulverizing motor is excessive, particle is difficult.
Description
Technical field
The present invention relates to one and pulverize Plasticator extrusion plasticizing screw rod, pulverize Plasticator and be used for the discarded foamed plastic of melt processed, significantly to reduce the also convenient transport of its volume, to recycle.
Background technology
The foamed plastics such as expandable polystyrene (EPS), expandable polypropylene (EPP), expandability polyethylene from high pressure process (EPE) have good heat insulation, sound insulation, the performance such as shockproof, and its application is increasingly extensive.The recycling of discarded foamed plastic, not only can protection of the environment, economize energy, and has good economic benefit.One of foamed plastic processing method discarded is at present through broken, hot melt regeneration and granulation, becomes another kind of material particles, then adds different auxiliary agent, through the obtained another kind of material of processing process.Bulky due to foamed plastic, the cost of transportation in recycling process, waste foamed plastics being transported to processing stand is higher.Although waste foamed plastics can be transported after crushed, because be foamed, volume is larger.
Existing fusing machine comprises frame, engine housing and motor, and the top of engine housing is provided with charging aperture, is provided with below reducing mechanism, reducing mechanism and is provided with aggregate bin, be provided with melting appartus below aggregate bin in engine housing; Described melting appartus comprises barrel, the import of barrel is arranged on the end face rear portion of barrel, the import of the relative barrel of outlet of aggregate bin, and on the extension outer wall of barrel, hoop is provided with heating collar, the extension end face of barrel is provided with discharging gate, is provided with screw rod (i.e. extrusion plasticizing screw rod) in barrel.
The weak point of above-mentioned existing fusing machine is: when the foamed plastic length be sent in barrel import or volume larger time, often can not enter screw rod, cause blanking difficulty, and then can only shut down and carry out labor cleaning.Secondly, foamed plastic often melts comparatively slow or can not thoroughly melt in barrel, there is the solid particle of foamed plastic in the liquation causing discharging gate to be extruded.
How to solve the problem, be the technical barrier of this area.
Summary of the invention
The technical problem that first the present invention will solve be to provide a kind of structure simple, be suitable for fast blanking and the higher pulverizing Plasticator extrusion plasticizing screw rod of reliability.
The technical problem of its secondary solution of the present invention is to provide one and is suitable for making foamed plastic burn-off rate in barrel very fast and fusing pulverizing Plasticator extrusion plasticizing screw rod more thoroughly.
The technical problem that the present invention will solve again is suitable for when being to provide a kind of particle making the load of motor keep the pulverizing Plasticator of the less above-mentioned extrusion plasticizing screw rod of application.
For solving above-mentioned primary technical problem, pulverizing Plasticator provided by the invention comprises: be located at the screw rod in the barrel of melting appartus, be characterized in: screw rod is varying pitch screw, the pitch of screw rod is being close on hopper mouth to the direction of barrel discharging opening by large and little.
As above-mentioned second technical problem of solution, in pulverizing Plasticator provided by the invention, on the direction of hopper mouth to barrel discharging opening, the internal diameter of described screw rod becomes large gradually.During use, because the internal diameter of barrel is constant, and the internal diameter of screw rod becomes large gradually, make the material on the screw rod at the contiguous hopper mouth place in barrel less, now be wrapped in the heater of barrel outer wall easily by foamed plastic rapid melting, and fusing is comparatively thorough, thus reduce the volume of foamed plastic further.
As preferred scheme, the contiguous barrel discharge outlet of described screw rod is hollow, to alleviate the weight of screw rod, and then alleviates motor load; On the other hand, can, when bringing into use, the temperature of screw rod hollow part be raised fast.
As further preferred scheme, be provided with heater in the hollow part of described screw rod, for further heating, foamed plastic melted further fast, thoroughly, thus reduce the volume of foamed plastic further.
As the preferred scheme of another kind, the outboard end of described barrel discharging opening is connected with continuous heat pipe, and this continuous heat pipe is that outer wall wraps up in the hollow pipe being provided with heater, and the axis in this continuous heat pipe is fixed with tube core, and the external diameter of this tube core is less than the internal diameter of continuous heat pipe.During discharging, the liquation exported from barrel discharging opening flows along the outer wall of tube core and accepts heater Fast Heating, finally sends; Continuous heat pipe is used for further to the liquation heating that the discharging opening of barrel is extruded, relative to pure hollow pipe, continuous heat pipe of the present invention is suitable for avoiding managing interior central part and is heated deficiency, thus the solid particle of foamed plastic that wherein exists of elimination further, and reduce the volume of foamed plastic further.
As above-mentioned 3rd technical problem of solution, the reducing mechanism in the pulverizing Plasticator of the above-mentioned extrusion plasticizing screw rod of application of the present invention's design comprises: the multi-disc moving knife of stationary distribution on main shaft; Each moving knife staggers 1-10 ° of distribution successively in the same direction, thus make a blade not on the same line, avoid the situation that each blade cuts foamed plastic simultaneously, namely operationally, only some blade is at cutting foamed plastic, thus alleviates the load of the pulverizing motor driving main shaft, and makes the load homogenising of pulverizing motor, avoid the situation that the instantaneous load of pulverizing motor is excessive, ensure the use safety pulverizing motor.
As further preferred scheme, for convenience of producing, installation and removal, multi-disc moving knife is fixed on a sleeve, and this sleeve key is engaged on described main shaft, and the two ends of this sleeve are provided with key and are engaged in fixed cover on described main shaft.
The technique effect that the present invention has: the blanking difficulty that (1) the present invention exists by adopting the screw rod of varying pitch to solve prior art, and then can only shut down and carry out the problems such as labor cleaning.(2) the present invention becomes large screw rod gradually by adopting internal diameter, solves foamed plastic that prior art exists and melts comparatively slow in barrel or the problem such as thoroughly can not to melt.(3) the present invention has the screw rod of hollow part and/or continuous heat pipe by adopting, and solves problems such as can not thoroughly melting further.(4) the present invention is by adopting the moving knife of non-rectilinear distribution, solve that prior art exists when running into respective thickness and the larger foamed plastic of volume, the problems such as the instantaneous load of pulverizing motor is excessive, particle is difficult.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below basis specific embodiment and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of pulverizing Plasticator of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation of the reducing mechanism in pulverizing Plasticator of the present invention;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is that the internal diameter in pulverizing Plasticator of the present invention becomes large gradually and has the structural representation of the varying pitch screw of hollow part;
Fig. 7 is the structural representation of the varying pitch screw that the internal diameter in pulverizing Plasticator of the present invention is constant;
Fig. 8 is the structural representation of continuous heat pipe of the present invention;
Fig. 9 is the end face structure schematic diagram of described continuous heat pipe;
Figure 10 is the structural representation that internal diameter in pulverizing Plasticator of the present invention becomes large constant lead screw gradually.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail:
As Fig. 1 to 3, the pulverizing Plasticator of the present embodiment comprises: frame 10, engine housing 7, the reducing mechanism be located in engine housing 7, be located at melting appartus below reducing mechanism, the top of engine housing 7 is provided with charging aperture, melting appartus comprises barrel, hopper mouth 11 is located at immediately below reducing mechanism, on the extension outer wall of barrel discharging opening 12, hoop is provided with heating collar, is provided with screw rod 2 in barrel 1; Screw drive motor is in transmission connection with screw rod 2 by a gearbox 9, pulverizes motor 6 and is in transmission connection with the main shaft 4 in described reducing mechanism by a belt pulley 8.
As Fig. 7, screw rod 2 is varying pitch screw, the pitch of screw rod 2 on the direction of contiguous hopper mouth 11 to barrel discharging opening 12 by large and little.As preferred scheme, the pitch of the contiguous hopper mouth 11 of screw rod 2 can refer to the maximum length value of the foaming plastic block be suitable for by described reducing mechanism, determines.
As further preferred scheme, as Fig. 6, on the direction of hopper mouth 11 to barrel discharging opening 12, the internal diameter of described screw rod 2 becomes large gradually, and external diameter is constant.During use, because the internal diameter of barrel 1 is constant, and the internal diameter of screw rod 2 becomes large gradually, make the material on the screw rod 2 at contiguous hopper mouth 11 place in barrel 1 less, now be wrapped in the heater of barrel 1 outer wall easily by foamed plastic rapid melting, and fusing is comparatively thorough, thus reduce the volume of foamed plastic further.
The contiguous barrel discharge outlet of described screw rod 2 is hollow, to alleviate the weight of screw rod 2, and then alleviates the load of screw drive motor; On the other hand, can, when bringing into use, the temperature of screw rod 2 hollow part 21 be raised fast.
Be provided with heater in the hollow part 21 of described screw rod 2, for further heating, foamed plastic melted further fast, thoroughly, thus reduce the volume of foamed plastic further.The preferred electric heater unit of heater, when screw rod 2 rotates, this electric heater unit selects brush mode to be connected with power supply.Also can adopt the heating oil pipeline of active joint formula, carry out spacer heating.
The outboard end of described barrel discharging opening is connected with continuous heat pipe 3, as Fig. 8, this continuous heat pipe 3 wraps up in the hollow pipe being provided with heater for outer wall, axis in this continuous heat pipe 3 is fixed with solid tube core 31, tube core 31 is fixed in continuous heat pipe 3 by multiple contiguous block 32, and the external diameter of this tube core 31 is less than the internal diameter of continuous heat pipe 3.During discharging, the liquation exported from barrel discharging opening 12 flow along the outer wall of tube core 31 and accepts heater Fast Heating, finally sends, thus the solid particle of foamed plastic that further elimination wherein exists, and reduce the volume of foamed plastic further.Adopt and have the continuous heat pipe 3 of tube core 31, relative to pure hollow pipe, continuous heat pipe 3 of the present invention is suitable for avoiding managing interior central part and is heated deficiency.
Reducing mechanism in this pulverizing Plasticator comprises: the multi-disc moving knife 5 of stationary distribution on main shaft 4, the quiet cutter 13 be interspersed one by one with each moving knife 5 be located in engine housing 7; As Fig. 5, each moving knife 5 staggers 1-10 ° of distribution successively in the same direction, thus make a blade not on the same line, avoid the situation that each blade cuts foamed plastic simultaneously, namely operationally, only some blade is at cutting foamed plastic, thus alleviate the load of the pulverizing motor 6 driving main shaft 4, and make the load homogenising of pulverizing motor 6, avoid the situation that the instantaneous load of pulverizing motor 6 is excessive, ensure use safety and the service life of pulverizing motor 6.
For convenience of producing, installation and removal, multi-disc moving knife 5 is fixed on a sleeve, and this sleeve key is engaged on described main shaft 4, and the two ends of this sleeve are provided with key and are engaged in fixed cover 41 on described main shaft 4.
As the embodiment optimized, if described main shaft 4 length is longer, an axis of centres bearing can be set in the central authorities of main shaft 4.
As the embodiment optimized, the pulverizing Plasticator of the present embodiment eliminates aggregate bin of the prior art, that is: hopper mouth 11 is directly located at adjacent immediately below reducing mechanism, and the outer end of each moving knife 5 coordinates with the external diameter small―gap suture of screw rod 2.This is not only less machine volume, avoids the defect of buildup that aggregate bin may bring, putty simultaneously, improves operating efficiency.
Alternatively, as the modification of the described screw rod 2 in Fig. 6, screw rod 2 can adopt uniform pitch.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (2)
1. apply the pulverizing Plasticator of extrusion plasticizing screw rod for one kind, the screw rod (2) of this extrusion plasticizing screw rod is located in the barrel (1) of pulverizing Plasticator, screw rod (2) is varying pitch screw, and the pitch of screw rod (2) is being close on hopper mouth (11) to the direction of barrel discharging opening (12) by large and little; At hopper mouth (11) on the direction of barrel discharging opening (12), the internal diameter of described screw rod (2) becomes large gradually;
It is characterized in that: the outboard end of the barrel discharging opening (12) of described barrel (1) is connected with continuous heat pipe (3), this continuous heat pipe (3) wraps up in the hollow pipe being provided with heater for outer wall, axis in this continuous heat pipe (3) is fixed with tube core (31), and the external diameter of this tube core (31) is less than the internal diameter of continuous heat pipe (3);
Reducing mechanism in this pulverizing Plasticator comprises: the multi-disc moving knife (5) of stationary distribution on the main shaft (4) pulverizing Plasticator; Each moving knife (5) staggers 1-10 ° of distribution successively in the same direction;
The contiguous barrel discharge outlet of described screw rod (2) is hollow;
Heater is provided with in the hollow part (21) of described screw rod (2).
2. pulverizing Plasticator according to claim 1, it is characterized in that: multi-disc moving knife (5) is fixed on a sleeve, this sleeve key is engaged on described main shaft (4), and the two ends of this sleeve are provided with key and are engaged in fixed cover (41) on described main shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210127117.7A CN102642294B (en) | 2012-04-26 | 2012-04-26 | Extrusion plasticizing screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210127117.7A CN102642294B (en) | 2012-04-26 | 2012-04-26 | Extrusion plasticizing screw rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102642294A CN102642294A (en) | 2012-08-22 |
| CN102642294B true CN102642294B (en) | 2016-01-20 |
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ID=46655486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210127117.7A Active CN102642294B (en) | 2012-04-26 | 2012-04-26 | Extrusion plasticizing screw rod |
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| Country | Link |
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| CN (1) | CN102642294B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634781B2 (en) * | 2001-01-10 | 2003-10-21 | Saint Gobain Industrial Ceramics, Inc. | Wear resistant extruder screw |
| CN201172274Y (en) * | 2008-01-07 | 2008-12-31 | 上海英科实业有限公司 | Hot press for recovering waste plastic foam |
| CN201405501Y (en) * | 2008-12-12 | 2010-02-17 | 李新乐 | Novel screw |
| CN101898411A (en) * | 2010-04-27 | 2010-12-01 | 昆山科信橡塑机械有限公司 | Screw special for low-smoke halogen-free material |
| CN101985238A (en) * | 2010-07-15 | 2011-03-16 | 王维东 | Screw for injection machine |
| CN202144109U (en) * | 2011-06-20 | 2012-02-15 | 温州南一塑料机械有限公司 | Screw rod for extruding machine |
| CN202507512U (en) * | 2012-04-26 | 2012-10-31 | 常州诚力机电有限公司 | Extruding-plasticizing screw rod |
-
2012
- 2012-04-26 CN CN201210127117.7A patent/CN102642294B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634781B2 (en) * | 2001-01-10 | 2003-10-21 | Saint Gobain Industrial Ceramics, Inc. | Wear resistant extruder screw |
| CN201172274Y (en) * | 2008-01-07 | 2008-12-31 | 上海英科实业有限公司 | Hot press for recovering waste plastic foam |
| CN201405501Y (en) * | 2008-12-12 | 2010-02-17 | 李新乐 | Novel screw |
| CN101898411A (en) * | 2010-04-27 | 2010-12-01 | 昆山科信橡塑机械有限公司 | Screw special for low-smoke halogen-free material |
| CN101985238A (en) * | 2010-07-15 | 2011-03-16 | 王维东 | Screw for injection machine |
| CN202144109U (en) * | 2011-06-20 | 2012-02-15 | 温州南一塑料机械有限公司 | Screw rod for extruding machine |
| CN202507512U (en) * | 2012-04-26 | 2012-10-31 | 常州诚力机电有限公司 | Extruding-plasticizing screw rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102642294A (en) | 2012-08-22 |
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