CN105216256A - Band Melt Pump blown film apparatus - Google Patents
Band Melt Pump blown film apparatus Download PDFInfo
- Publication number
- CN105216256A CN105216256A CN201510723139.3A CN201510723139A CN105216256A CN 105216256 A CN105216256 A CN 105216256A CN 201510723139 A CN201510723139 A CN 201510723139A CN 105216256 A CN105216256 A CN 105216256A
- Authority
- CN
- China
- Prior art keywords
- extruder
- melt
- pump
- blown
- melt pump
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims abstract description 22
- 238000010168 coupling process Methods 0.000 claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 9
- 239000000155 melt Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 description 4
- 238000000071 blow moulding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of band Melt Pump blown film apparatus.Described device is made up of extruder, motor, flow distribution plate, extruder connector, Melt Pump suit, pressure sensor, head connector and blown-film die.Described Melt Pump suit is core of the present invention, comprises support, gear pump, installing plate, Hooks coupling universal coupling, reductor and motor six part.Described Melt Pump suit is connected with extruder by extruder connector, be connected with blown-film die by head connector, pressure sensor is installed on Melt Pump suit top, flow distribution plate is installed on the outlet of extruder and is connected with extruder connector, motor is connected with extruder, for whole device provides power.Described device can stablize plasticizing process, reduces melt temperature, improves goods seed output and quality, can extend the extruder life-span simultaneously.
Description
Technical field
The invention belongs to plastic molding and processing equipment field, relate to a kind of band Melt Pump blown film apparatus.
Background technology
Plastic sheeting production method has four kinds usually, that is: rolling process, extrusion molding, pulling method and the tape casting, and wherein, extrusion molding is made up of jointly blow moulding and extrusion molding.
Inflation film former and device comprise extruder, head and mouth mould, cooling device (vane or water-cooling system), collapser, carry-over pinch rolls, crimping device etc.
The technical process adopting blow moulding to produce plastic sheeting is, first plastic raw materials is added extruder, make its fusion plastification, secondly extruded by head (mould) ring-type die orifice and form thin-walled pipe, then compressed air is passed into pipe, make it inflation to required thickness and width, finally by cooling, backfin, be wound into film product.
Inflation film processing mode applicability is strong, and nearly all thermoplastic material all obtains film product by this method, has a wide range of applications.The width of the film product that the method is produced and thickness can adjust arbitrarily within the specific limits, converted products is versatile and flexible, and have that equipment is simple, reduced investment, occupation of land be few, the plurality of advantages such as process side crops is few, so, in plastic sheeting is produced, occupy very consequence.
But compared to other plastic sheeting forming method, particularly compared with cast film forming method, blow moulding exists and yields poorly, film product thickness lack of homogeneity, (needs extruder in fusion plastification and course of conveying to extruder requirement is higher, set up the pressure needed for blowing) etc. problem, thus limit its more wide application and development.
Summary of the invention
For solving the problems referred to above existed in inflation film forming method, the invention provides a kind of blown film apparatus with Melt Pump, by described device, can plasticizing process be stablized, reduce melt temperature, improve goods seed output and quality.
For solving the problem, the present invention adopts following technical scheme:
The blown film apparatus of described band Melt Pump is made up of extruder, motor, flow distribution plate, extruder connector, Melt Pump suit, pressure sensor, head connector and blown-film die.Described Melt Pump suit is connected with extruder by extruder connector, be connected with blown-film die by head connector, pressure sensor is installed on Melt Pump suit top, flow distribution plate is installed on the outlet of extruder and is connected with extruder connector, motor is connected with extruder, for whole device provides power.
Described Melt Pump suit comprises support, gear pump, installing plate, Hooks coupling universal coupling, reductor and motor six part, and erect carrying effect for described, described installing plate, Hooks coupling universal coupling, reductor and motor are all installed on described support; Described motor provides power for Melt Pump, and described gear pump is connected with described motor with described reductor by described Hooks coupling universal coupling; Described Melt Pump suit is connected with extruder connector and head connector respectively by described installing plate, described Melt Pump is set with and is connected in the middle of extruder and blown-film die, the blown film apparatus of common composition band Melt Pump.
Described gear pump belongs to positive-dispacement pump, relies on the swept volume change caused that engages each other of driving and driven gear to carry out melt conveying during work.Described swept volume is made up of the teeth groove of the pump housing, gear and the bearing with side plate function, and described swept volume is divided into two parts, and wherein, the part near extruder side is called suction chamber, and the part near blown-film die side is called discharge side.When gear rotates, through the melt that extruder plastifies, enter in the teeth groove of suction chamber two gear, along with pinion rotation, melt is brought into discharge side from gear both sides, the engagement once again of gear, make the melt in teeth groove be extruded discharge side, be sent to outlet conduit, enter blown-film die.
Although from extruder to Melt Pump, the feed pressure of molten plastic may fluctuate, as long as there are enough inlet pressures for filling melt gear tooth slot, discharge pressure will keep stable.Along with pump shaft rotates continuously, the melt that extruder plastifies by Melt Pump, constant voltage etc. are held ground and are transported to continually in blown-film die, ensure melt equivalent voltage stabilizing in blown-film die, make the thickness of form film more stable, homogeneous.
By the positive conveyance of Melt Pump, make the melt volume and the maintain constant pressure that enter blown-film die, effectively reduce the material that extruder parameter causes and export unstable and pressure fluctuation.In addition, melt builds pressure by original screw rod to die head, change Melt Pump into and build pressure to die head, reduce the pressure requirements to extruder screw, screw rod can the extruding of high-speed and high-efficiency, and can regulate extruder back pressure, reduce melt residence time in barrel, stablize plasticizing process, reduce melt temperature, improve goods seed output and quality.
The invention has the beneficial effects as follows: by being connected in series Melt Pump suit between extruder with blown-film die, melt extrusion builds pressure by original screw rod to die head, change into and build pressure by Melt Pump to die head, reduce the pressure requirements to screw rod, screw rod can be extruded high-speed and high-efficiency, and extruder back pressure can be regulated, reduce melt residence time in barrel, stablize plasticizing process, reduce melt temperature, improve goods seed output and quality.Meanwhile, because pressure in extruding machine barrel reduces, significantly reduce the degree of wear between screw rod and barrel, alleviate the load of extruder gearbox thrust bearing, extend the extruder life-span.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is a kind of blown film apparatus structural representation with Melt Pump of the present invention.
Fig. 2 is Melt Pump sleeve structure schematic diagram of the present invention.
In figure: 1. extruder, 2. motor, 3. flow distribution plate, 4. extruder connector, 5. Melt Pump suit, 6. pressure sensor, 7. head connector, 8. blown-film die, 9. support, 10. gear pump, 11. installing plates, 12. Hooks coupling universal couplings, 13. reductors, 14. motors.
Detailed description of the invention
See Fig. 1, Fig. 2, the blown film apparatus of described band Melt Pump is made up of extruder 1, motor 2, flow distribution plate 3, extruder connector 4, Melt Pump suit 5, pressure sensor 6, head connector 7 and blown-film die 8.Described Melt Pump suit 5 is connected with extruder 1 by extruder connector 4, be connected with blown-film die 8 by head connector 7, pressure sensor 6 is installed on Melt Pump and is set with 5 tops, flow distribution plate 3 is installed on the outlet of extruder 1 and is connected with extruder connector 4, motor 2 is connected with extruder 1, for whole device provides power.
Described Melt Pump suit 5 comprises support 9, gear pump 10, installing plate 11, Hooks coupling universal coupling 12, reductor 13 and motor 14 6 part, described support 9 plays carrying effect, and described gear pump 10, installing plate 11, Hooks coupling universal coupling 12, reductor 13 and motor 14 are all installed on described support; Described motor 14 provides power for gear pump 10, and described gear pump 10 is connected with described motor 14 with described reductor 13 by described Hooks coupling universal coupling 12; Described Melt Pump suit 5 is connected with extruder connector 4 and head connector 7 respectively by described installing plate 11, makes described Melt Pump be set with 5 and is connected in the middle of extruder 1 and blown-film die 8, the blown film apparatus of common composition band Melt Pump.
Described gear pump 10 belongs to positive-dispacement pump, relies on the swept volume change caused that engages each other of driving and driven gear to carry out melt conveying during work.Described swept volume is made up of the teeth groove of the pump housing, gear and the bearing with side plate function, and described swept volume is divided into two parts, and wherein, the part near extruder side is called suction chamber, and the part near blown-film die side is called discharge side.When gear rotates, through the melt that extruder plastifies, enter in the teeth groove of suction chamber two gear, along with pinion rotation, melt is brought into discharge side from gear both sides, the engagement once again of gear, make the melt in teeth groove be extruded discharge side, be sent to outlet conduit, enter blown-film die.
Although from extruder to Melt Pump, the feed pressure of molten plastic may fluctuate, as long as there are enough inlet pressures for filling melt gear tooth slot, discharge pressure will keep stable.Along with pump shaft rotates continuously, the melt that extruder plastifies by Melt Pump, constant voltage etc. are held ground and are transported to continually in blown-film die, ensure melt equivalent voltage stabilizing in blown-film die, make the thickness of form film more stable, homogeneous.
By the positive conveyance of Melt Pump, make the melt volume and the maintain constant pressure that enter blown-film die, effectively reduce the material that extruder parameter causes and export unstable and pressure fluctuation.In addition, melt builds pressure by original screw rod to die head, change Melt Pump into and build pressure to die head, reduce the pressure requirements to extruder screw, screw rod can the extruding of high-speed and high-efficiency, and can regulate extruder back pressure, reduce melt residence time in barrel, stablize plasticizing process, reduce melt temperature, improve goods seed output and quality.
Utilize the blown film apparatus of band Melt Pump provided by the invention, produce LDPE blown film and PVC thermal contractive label film respectively, and the parameter that relates to when production said two products of the parameter related in process of production by device of the present invention and index and traditional blown film apparatus and index contrast, comparing result is respectively as shown in table one and table two.Can reach a conclusion from table one with table two: compared with traditional blown film apparatus, the blown film apparatus of band Melt Pump provided by the invention has clear superiority in film yield and film thickness stability.
table one: machinery, technological parameter and film main performance index contrast table that LDPE blown film is produced
table two: machinery, technological parameter and film main performance index contrast table that PVC thermal contractive label film is produced
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.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 thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (5)
1. be with a Melt Pump blown film apparatus, it is characterized in that: described device is made up of extruder, motor, flow distribution plate, extruder connector, Melt Pump suit, pressure sensor, head connector and blown-film die; Described Melt Pump suit is connected with extruder by extruder connector, be connected with blown-film die by head connector, pressure sensor is installed on Melt Pump suit top, flow distribution plate is installed on the outlet of extruder and is connected with extruder connector, motor is connected with extruder, for whole device provides power.
2. band Melt Pump blown film apparatus as claimed in claim 1, it is characterized in that: described Melt Pump suit comprises support, gear pump, installing plate, Hooks coupling universal coupling, reductor and motor six part, erect carrying effect for described, described installing plate, Hooks coupling universal coupling, reductor and motor are all installed on described support; Described motor provides power for Melt Pump, and described gear pump is connected with described motor with described reductor by described Hooks coupling universal coupling; Described Melt Pump suit is connected with extruder connector and head connector respectively by described installing plate, described Melt Pump is set with and is connected in the middle of extruder and blown-film die, the blown film apparatus of common composition band Melt Pump.
3. band Melt Pump blown film apparatus as claimed in claim 2, is characterized in that: described gear pump belongs to positive-dispacement pump, relies on the swept volume change caused that engages each other of driving and driven gear to carry out melt conveying during work; Described swept volume is made up of the teeth groove of the pump housing, gear and the bearing with side plate function, and described swept volume is divided into two parts, and wherein, the part near extruder side is called suction chamber, and the part near blown-film die side is called discharge side; When gear rotates, through the melt that extruder plastifies, enter in the teeth groove of suction chamber two gear, along with pinion rotation, melt is brought into discharge side from gear both sides, the engagement once again of gear, make the melt in teeth groove be extruded discharge side, be sent to outlet conduit, enter blown-film die.
4. band Melt Pump blown film apparatus as claimed in claim 1, it is characterized in that: although from extruder to Melt Pump, the feed pressure of molten plastic may fluctuate, but as long as there are enough inlet pressures for filling melt gear tooth slot, discharge pressure just keeps stable; Along with pump shaft rotates continuously, the melt that extruder plastifies by Melt Pump, constant voltage etc. are held ground and are transported to continually in blown-film die, ensure melt equivalent voltage stabilizing in blown-film die, make the thickness of form film more stable, homogeneous.
5. band Melt Pump blown film apparatus as claimed in claim 1, it is characterized in that: by the positive conveyance of Melt Pump, make the melt volume and the maintain constant pressure that enter blown-film die, effectively reduce the material that extruder parameter causes and export unstable and pressure fluctuation; In addition, melt builds pressure by original screw rod to die head, change Melt Pump into and build pressure to die head, reduce the pressure requirements to extruder screw, screw rod can the extruding of high-speed and high-efficiency, and can regulate extruder back pressure, reduce melt residence time in barrel, stablize plasticizing process, reduce melt temperature, improve goods seed output and quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510723139.3A CN105216256A (en) | 2015-10-29 | 2015-10-29 | Band Melt Pump blown film apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510723139.3A CN105216256A (en) | 2015-10-29 | 2015-10-29 | Band Melt Pump blown film apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105216256A true CN105216256A (en) | 2016-01-06 |
Family
ID=54985688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510723139.3A Pending CN105216256A (en) | 2015-10-29 | 2015-10-29 | Band Melt Pump blown film apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105216256A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397665A (en) * | 2018-10-23 | 2019-03-01 | 金纬机械常州有限公司 | PE Wood-plastic profiles one-step method production process and its metering pump of application |
| CN114350051A (en) * | 2022-02-09 | 2022-04-15 | 海信（山东）冰箱有限公司 | Foaming material particle, preparation method and application thereof, refrigerator door seal and refrigerator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163553A (en) * | 1994-11-14 | 1997-10-29 | 德夫罗公开有限公司 | Improved method for preparing edible wrappers and compositions thereof |
| CN1287506A (en) * | 1998-01-29 | 2001-03-14 | 扎托里乌斯股份公司 | Expanded porous thermoplastic polymer membranes and method and device for the production thereof |
| CN101203366A (en) * | 2005-04-29 | 2008-06-18 | 赢创罗姆有限公司 | Method for producing a thermoplastic plastic film, film and use thereof |
| CN202579180U (en) * | 2012-05-10 | 2012-12-05 | 荣升塑胶（上海）有限公司 | Shaft-end seal structure of polyester PET (polyethylene glycol terephthalate) metering pump |
| CN103613919A (en) * | 2013-11-20 | 2014-03-05 | 南京诚盟机械有限公司 | Shoe material hot-melt adhesive sheet and production process and equipment thereof |
| CN205112309U (en) * | 2015-10-29 | 2016-03-30 | 宜兴市光辉包装材料有限公司 | Take melt pump blown film device |
-
2015
- 2015-10-29 CN CN201510723139.3A patent/CN105216256A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163553A (en) * | 1994-11-14 | 1997-10-29 | 德夫罗公开有限公司 | Improved method for preparing edible wrappers and compositions thereof |
| CN1287506A (en) * | 1998-01-29 | 2001-03-14 | 扎托里乌斯股份公司 | Expanded porous thermoplastic polymer membranes and method and device for the production thereof |
| CN101203366A (en) * | 2005-04-29 | 2008-06-18 | 赢创罗姆有限公司 | Method for producing a thermoplastic plastic film, film and use thereof |
| CN202579180U (en) * | 2012-05-10 | 2012-12-05 | 荣升塑胶（上海）有限公司 | Shaft-end seal structure of polyester PET (polyethylene glycol terephthalate) metering pump |
| CN103613919A (en) * | 2013-11-20 | 2014-03-05 | 南京诚盟机械有限公司 | Shoe material hot-melt adhesive sheet and production process and equipment thereof |
| CN205112309U (en) * | 2015-10-29 | 2016-03-30 | 宜兴市光辉包装材料有限公司 | Take melt pump blown film device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397665A (en) * | 2018-10-23 | 2019-03-01 | 金纬机械常州有限公司 | PE Wood-plastic profiles one-step method production process and its metering pump of application |
| CN114350051A (en) * | 2022-02-09 | 2022-04-15 | 海信（山东）冰箱有限公司 | Foaming material particle, preparation method and application thereof, refrigerator door seal and refrigerator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |
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| RJ01 | Rejection of invention patent application after publication |