CN203031914U - PET crystallization-free and drying-free twin-screw sheet forming extrusion equipment - Google Patents
PET crystallization-free and drying-free twin-screw sheet forming extrusion equipment Download PDFInfo
- Publication number
- CN203031914U CN203031914U CN2012206542575U CN201220654257U CN203031914U CN 203031914 U CN203031914 U CN 203031914U CN 2012206542575 U CN2012206542575 U CN 2012206542575U CN 201220654257 U CN201220654257 U CN 201220654257U CN 203031914 U CN203031914 U CN 203031914U
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- Prior art keywords
- screw extruder
- screw
- pet
- sheet forming
- twin
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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
- 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
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses PET (Polyethylene Terephthalate) crystallization-free and drying-free twin-screw sheet forming extrusion equipment which comprises a feed device, a screw extruder and a sheet extrusion device, wherein an outlet of the feed device is connected with a feed port of the screw extruder, and a discharge port of the screw extruder is connected with an inlet of the sheet extrusion device. The PET crystallization-free and drying-free twin-screw sheet forming extrusion equipment is characterized in that the screw extruder is a co-rotating parallel twin-screw extruder, and is equipped with a plurality of vacuumizing devices used for preventing hydrolysis in a PET sheet production process. According to the PET crystallization-free and drying-free twin-screw sheet forming extrusion, crystallization and drying processes of PET are directly accomplished in the twin-screw extruder continuously, so that a viscosity value and the brittleness of PET are ensured, and a raw PET material and a return PET material are directly conveyed into the twin-screw extruder without being crystallized or dried.
Description
Technical field
The utility model relates to a kind of PET and need not crystallizing and drying twin-screw sheet forming extrusion equipment.
Background technology
The extrusion molding of PET sheet material adopts single screw extrusion machine to finish usually, and raw material is before entering single screw extrusion machine, and APET will be through 150 ℃, the drying of 4 ~ 6 hours time; APET reclaims the pre-crystallization that broken material also will carry out 170 ℃ of temperature and 4 ~ 6 hours time, PETG will be through 70 ~ 80 ℃, the drying of 8 ~ 10 hours time, its objective is and prevent from producing hydrolysis in the PET sheet production process, in order to ensure special viscosity IV value and fragility, still, can cause very big energy resource consumption like this, and consuming time, production efficiency is low.
The utility model content
Purpose: in order to overcome the deficiencies in the prior art, the utility model provides a kind of PET to need not crystallizing and drying twin-screw sheet forming extrusion equipment, PET crystallizing and drying process is directly finished to continuity in double screw extruder, IV k value and the fragility of PET quality have not only been guaranteed, PET raw material and feed back do not need crystallizing and drying, are delivered directly in the double screw extruder.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of PET need not crystallizing and drying twin-screw sheet forming extrusion equipment, comprise drawing-in device, screw extruder, sheet material extrusion device, the outlet of described drawing-in device is connected with the charging aperture of screw extruder, the discharging opening of screw extruder is connected with the entrance of sheet material extrusion device, it is characterized in that: described screw extruder is the cocurrent and parallel double screw extruder, and described screw extruder disposes for preventing that PET sheet production process from producing a plurality of vacuum extractors of hydrolysis; Described cocurrent and parallel double screw extruder comprises screw rod, and described screw rod is building block system tandem compound structure.
Described drawing-in device is a plurality of metering feed devices, and described each metering feed device all is connected with the charging aperture of screw extruder; Described metering feed device comprises metering feeding device, weigh-hatching plant, feed supplement storehouse and material vacuum feeder, described material vacuum feeder places top, feed supplement storehouse, the feed supplement storehouse is connected with the metering feeding device, and the metering feeding device links to each other with the charging aperture of screw extruder by weigh-hatching plant.
Also comprise portable lathe bed, screw extruder is arranged on the top of portable lathe bed, and described portable lathe bed adopts pulley to be connected with track with screw extruder, and pulley is by the electronic control of reducing motor.
Also comprise three roller sheet forming machines, the entrance of described three roller sheet forming machines is connected with the discharging opening of sheet material extrusion device.
Described three roller sheet forming machines comprise three-roller, cooling carriage, calibrator, trimming device and hauling machine; The feeding mouth of described three-roller is connected with the discharging opening of sheet material extrusion device, and carriage is adjacent is equipped with cooling for the feeding mouth of three-roller, and described calibrator, trimming device and hauling machine are successively set on cooling carriage top; Three rollers of described three-roller have heater respectively, and described heater is provided with die heater and is used for the control heating-up temperature.
Three rollers of described three-roller dispose reductor respectively, and reductor is provided with AC converter and is used for the control speed governing.
Also comprise for the double winder with the rolling of PET sheet material the adjacent setting that is in line with three roller sheet forming machines of described double winder; The driving motor of described double winder adopts torque motor to realize moment and adjustable-speed.
Described sheet material extrusion device comprises fondant filter, melt metering pump, the flat mouthful mould of sheet material and is connected runner; The feeding mouth of described fondant filter is connected with the discharging opening of screw extruder, the discharging opening of described fondant filter is connected with melt metering pump by connecting runner, melt metering pump is connected with the flat mouthful mould of sheet material by connecting runner, and the flat mouthful mould of sheet material is connected with three roller sheet forming machines.
Described vacuum extractor comprises: aspirating chamber, vacuum pipe, vavuum pump and drainer; Described aspirating chamber links to each other with screw extruder, and described aspirating chamber, vavuum pump and drainer are connected by vacuum pipe successively.
Beneficial effect: a kind of PET that the utility model provides need not crystallizing and drying twin-screw sheet forming extrusion equipment, using the screwing element of double screw extruder is the building block system combinatorial principle, and effectively make up, make the PET material in the extruder extrusion, when not reaching fusing point, just produce the melt solid phase and extrude, can make the PET material avoid producing thermal decomposition; 2-3 vacuum extractor of configuration in the machine barrel of extruder is arranged, screwing element at the vacuum place is combined as engagement rotor screw rod simultaneously, effectively PET moisture content and lower-molecular substance in mixing are discharged effectively, thereby the k value that guarantees the PET finished product materials reduces scope≤0.05; Feed system disposes the metering feeding machine, by adding flexibilizer and the abundant hybrid reaction of PET material, increases k value, improves the quality of products, and has following characteristics: 1, do not need drying device, can save power supply in a large number; 2, this special plasticizing extrusion performance of maximum addition 100%, and twin-screw can effectively guarantee the quality of sheet material; 3, addition can be guaranteed arbitrarily, the stability of product can also be effectively guaranteed.Because can be effectively mixing virgin material and feed back, extrudes twin-screw; 4, common pigments and Masterbatch can join and carry out blend in the extruder, and pigment is uniformly dispersed goods color balance, online toning simultaneously; 5, can directly carry out sheet material according to the production of market demand small lot extrudes; 6, according to the market demand, novel APET/PETG blend sheet material is extruded, and is not subjected to two kinds of material's proportion content restrictions; Because the blend characteristic of twin-screw, the goods high-quality of producing and stablizing; 7, equipment is stable, and is simple to operate, the general available machine time only need 15 minutes just can steady production.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the workflow diagram of the utility model equipment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 1, for a kind of PET need not crystallizing and drying twin-screw sheet forming extrusion equipment, comprise drawing-in device 1, screw extruder 2, sheet material extrusion device 6, the outlet of described drawing-in device 1 is connected with the charging aperture of screw extruder 2, the discharging opening of screw extruder 2 is connected with the entrance of sheet material extrusion device 6, it is characterized in that: described screw extruder 2 is the cocurrent and parallel double screw extruder, and described screw extruder 2 disposes for preventing that PET sheet production process from producing a plurality of vacuum extractors 5 of hydrolysis; Described cocurrent and parallel double screw extruder comprises screw rod 21, and described screw rod 21 is building block system tandem compound structure.Described drawing-in device 1 is a plurality of metering feed devices, and described each metering feed device all is connected with the charging aperture of screw extruder; Described metering feed device comprises metering feeding device 11, weigh-hatching plant 12, feed supplement storehouse 13 and material vacuum feeder 14, described material vacuum feeder 14 places 13 tops, feed supplement storehouse, feed supplement storehouse 13 is connected with metering feeding device 11, and metering feeding device 11 links to each other with the charging aperture of screw extruder 2 by weigh-hatching plant 12.Also comprise portable lathe bed 3, screw extruder 2 is arranged on the top of portable lathe bed 3, and described portable lathe bed 3 adopts pulley to be connected with track with screw extruder 2, and pulley is by the electronic control of reducing motor.Also comprise three roller sheet forming machines 7, the entrance of described three roller sheet forming machines 7 is connected with the discharging opening of sheet material extrusion device 6.Described three roller sheet forming machines 7 comprise three-roller 71, cooling carriage 72, calibrator 73, trimming device 74 and hauling machine 75; The feeding mouth of described three-roller 71 is connected with the discharging opening of sheet material extrusion device 6, and the feeding mouth of three-roller 71 is successively set on cooling carriage 72 tops with cooling carriage 72 adjacent being equipped with, described calibrator 73, trimming device 74 and hauling machine 75; Three rollers of described three-roller 71 have heater respectively, and described heater is provided with die heater and is used for the control heating-up temperature.Three rollers of described three-roller 71 dispose reductor respectively, and reductor is provided with AC converter and is used for the control speed governing.Also comprise for the double winder 8 with the rolling of PET sheet material described double winder 8 and the 7 adjacent settings that are in line of three roller sheet forming machines; The driving motor of described double winder 8 adopts torque motor to realize moment and adjustable-speed.Described sheet material extrusion device 6 comprises fondant filter 61, melt metering pump 62, the flat mouthful mould 63 of sheet material and is connected runner; The feeding mouth of described fondant filter 61 is connected with the discharging opening of screw extruder 2, the discharging opening of described fondant filter 61 is connected with melt metering pump 62 by connecting runner, melt metering pump 62 is connected with the flat mouthful mould 63 of sheet material by connecting runner, and the flat mouthful mould 63 of sheet material is connected with three roller sheet forming machines 7.Described vacuum extractor 5 comprises: aspirating chamber 51, vacuum pipe 52, vavuum pump 53 and drainer 54; Described aspirating chamber 51 links to each other with screw extruder 2, and described aspirating chamber 51, vavuum pump 53 and drainer 54 are connected by vacuum pipe 52 successively.
As shown in Figure 2, be workflow diagram of the present utility model.
1., drawing-in device: 1 ~ 5 of drawing-in device quantity, respectively PET raw material, PET feed back and auxiliary agent etc. are fed in the extruder according to the ratio metering that sets, feeding precision 0.3 ~ 1%, PET raw material and PET feed back feeding capacity 100 ~ 600kg/h, the auxiliary agent feeding capacity is 0.1 ~ 15% of PET material.The metering feed device form has volume type drawing-in device or weight-loss type drawing-in device, and drawing-in device comprises metering feeding device, weigh-hatching plant, feed supplement storehouse and material vacuum feeder.
2., cocurrent and parallel double screw extruder: a, extruder specification: 60,65,70,75,80,85,90,95 types.
B, transmission case: rotating speed 300 ~ 500rpm, output torque class 6 .8 ~ 11.8T/A3.
C, screw rod: draw ratio L/D=40 ~ 52:1, screw diameter Φ 60 ~ 95mm.The formation of screw rod is to adopt the building block system tandem compound to form threaded block.
D, double screw extruder comprise scope: transmission case, motor, lathe bed, machine barrel, screw rod, heating system, cooling system.
3., portable lathe bed: take pulley to be connected with track with the twin-screw main frame, pulley is by the electronic control of reducing motor.
4., electrical control cabinet: chain closed-loop control metering feed device, cocurrent and parallel double screw extruder, vacuum extractor, sheet material extrusion device, three roller sheet forming machines, double winder.
5., vacuum extractor: can finish the crystallizing and drying of PET in extruder fast under the operating mode of vacuum pump inlet vacuum absolute pressure≤0.5 millibar by this device, degassing ability is greater than 1000L/S.Device comprises: aspirating chamber, heavy caliber vacuum pipe, high power high-efficiency vacuum pump, big volume drainer are amassed in the heavy in section.The long-pending aspirating chamber configuration in heavy in section be that 6:1 lengthens dual-screw-stem machine barrel structure, 1 ~ 3.5 inch heavy caliber vacuum pipe, 5.5 ~ 22kw high power high-efficiency vacuum pump, the big volume drainer of 0.5 ~ 2.5m3.
6., sheet material extrusion device: dispose fondant filter, melt metering pump, the flat mouthful mould of sheet material and connect runner.
A, fondant filter are furnished with electrical heating and temperature control equipment.
B, melt metering pump are furnished with pressure test point behind the pump front pump, and the measuring pump motor adopts reductor, and speed-adjusting and control system adopts AC converter control.
C, the flat mouthful mould of sheet material are furnished with heater, and the configuration temperature control equipment.The flat mouth of mould has adjusts the flow die lip.
7., three roller sheet forming machines: comprise three-roller, cooling carriage, trimming device, calibrator and hauling machine.Three rollers of three-roller have heater respectively, and heat medium is conduction oil, and die heater control is adopted in control; Three rollers dispose three reductors respectively, and AC converter control is adopted in speed governing.PET sheet material wide cut specification 650 ~ 1800mm, thickness 0.15 ~ 4mm.
8., double winder: driving motor adopts torque motor, moment and adjustable-speed.
The above only is preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a PET need not crystallizing and drying twin-screw sheet forming extrusion equipment, comprise drawing-in device (1), screw extruder (2), sheet material extrusion device (6), the outlet of described drawing-in device (1) is connected with the charging aperture of screw extruder (2), the discharging opening of screw extruder (2) is connected with the entrance of sheet material extrusion device (6), it is characterized in that: described screw extruder (2) is the cocurrent and parallel double screw extruder, and described screw extruder (2) disposes for preventing that PET sheet production process from producing a plurality of vacuum extractors (5) of hydrolysis; Described cocurrent and parallel double screw extruder comprises screw rod (21), and described screw rod (21) is building block system tandem compound structure.
2. PET according to claim 1 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: described drawing-in device (1) is a plurality of metering feed devices, and described each metering feed device all is connected with the charging aperture of screw extruder; Described metering feed device comprises metering feeding device (11), weigh-hatching plant (12), feed supplement storehouse (13) and material vacuum feeder (14), described material vacuum feeder (14) places top, feed supplement storehouse (13), feed supplement storehouse (13) is connected with metering feeding device (11), and metering feeding device (11) links to each other with the charging aperture of screw extruder (2) by weigh-hatching plant (12).
3. PET according to claim 1 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: also comprise portable lathe bed (3), screw extruder (2) is arranged on the top of portable lathe bed (3), described portable lathe bed (3) adopts pulley to be connected with track with screw extruder (2), and pulley is by the electronic control of reducing motor.
4. PET according to claim 1 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: also comprise three roller sheet forming machines (7), the entrance of described three roller sheet forming machines (7) is connected with the discharging opening of sheet material extrusion device (6).
5. PET according to claim 4 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: described three roller sheet forming machines (7) comprise three-roller (71), cooling carriage (72), calibrator (73), trimming device (74) and hauling machine (75); The feeding mouth of described three-roller (71) is connected with the discharging opening of sheet material extrusion device (6), the feeding mouth of three-roller (71) is successively set on cooling carriage (72) top with adjacent being equipped with of cooling carriage (72), described calibrator (73), trimming device (74) and hauling machine (75); Three rollers of described three-roller (71) have heater respectively, and described heater is provided with die heater and is used for the control heating-up temperature.
6. PET according to claim 5 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: three rollers of described three-roller (71) dispose reductor respectively, and reductor is provided with AC converter and is used for the control speed governing.
7. need not crystallizing and drying twin-screw sheet forming extrusion equipment according to each described PET of claim 4-6, it is characterized in that: also comprise for the double winder (8) with the rolling of PET sheet material the adjacent setting that is in line with three roller sheet forming machines (7) of described double winder (8); The driving motor of described double winder (8) adopts torque motor to realize moment and adjustable-speed.
8. PET according to claim 1 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: described sheet material extrusion device (6) comprises fondant filter (61), melt metering pump (62), flat mouthful of mould (63) of sheet material and is connected runner; The feeding mouth of described fondant filter (61) is connected with the discharging opening of screw extruder (2), the discharging opening of described fondant filter (61) is connected with melt metering pump (62) by connecting runner, melt metering pump (62) is connected by connecting flat mouthful of mould (63) of runner and sheet material, and flat mouthful of mould (63) of sheet material is connected with three roller sheet forming machines (7).
9. PET according to claim 1 need not crystallizing and drying twin-screw sheet forming extrusion equipment, it is characterized in that: described vacuum extractor (5) comprising: aspirating chamber (51), vacuum pipe (52), vavuum pump (53) and drainer (54); Described aspirating chamber (51) links to each other with screw extruder (2), and described aspirating chamber (51), vavuum pump (53) and drainer (54) are connected by vacuum pipe (52) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206542575U CN203031914U (en) | 2012-12-03 | 2012-12-03 | PET crystallization-free and drying-free twin-screw sheet forming extrusion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206542575U CN203031914U (en) | 2012-12-03 | 2012-12-03 | PET crystallization-free and drying-free twin-screw sheet forming extrusion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203031914U true CN203031914U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206542575U Expired - Lifetime CN203031914U (en) | 2012-12-03 | 2012-12-03 | PET crystallization-free and drying-free twin-screw sheet forming extrusion equipment |
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| CN (1) | CN203031914U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434106A (en) * | 2013-08-23 | 2013-12-11 | 张建国 | Production equipment and production technology of low-cost large plastic element |
| CN104385644A (en) * | 2014-10-22 | 2015-03-04 | 东莞市杰伟机械制造有限公司 | Single-screw exhaustion drying-free energy-saving extrusion production line for PET plastic |
| CN111187492A (en) * | 2020-02-17 | 2020-05-22 | 深圳市绿环再生资源开发有限公司 | Treatment method of PET waste film doped with metal belt |
-
2012
- 2012-12-03 CN CN2012206542575U patent/CN203031914U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434106A (en) * | 2013-08-23 | 2013-12-11 | 张建国 | Production equipment and production technology of low-cost large plastic element |
| CN103434106B (en) * | 2013-08-23 | 2016-01-06 | 张建国 | A kind of production equipment of low cost large-scale plastics article and production technology |
| CN104385644A (en) * | 2014-10-22 | 2015-03-04 | 东莞市杰伟机械制造有限公司 | Single-screw exhaustion drying-free energy-saving extrusion production line for PET plastic |
| CN111187492A (en) * | 2020-02-17 | 2020-05-22 | 深圳市绿环再生资源开发有限公司 | Treatment method of PET waste film doped with metal belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU CENMEN EQUIPMENT CO., LTD. Free format text: FORMER NAME: NANJING CENMEN MACHINERY LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210031, No. 22 Liuzhou North Road, Xiao Liu Industrial Zone, Nanjing hi tech Zone, Jiangsu Patentee after: JIANGSU CENMEN EQUIPMENT Corp.,Ltd. Address before: 210031, No. 22 Liuzhou North Road, Xiao Liu Industrial Zone, Nanjing hi tech Zone, Jiangsu Patentee before: NANJING CENMEN MACHINERY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |