CN201371567Y - Device for producing high strength PET wood and plastic composite by one-step method - Google Patents
Device for producing high strength PET wood and plastic composite by one-step method Download PDFInfo
- Publication number
- CN201371567Y CN201371567Y CN200920041956U CN200920041956U CN201371567Y CN 201371567 Y CN201371567 Y CN 201371567Y CN 200920041956 U CN200920041956 U CN 200920041956U CN 200920041956 U CN200920041956 U CN 200920041956U CN 201371567 Y CN201371567 Y CN 201371567Y
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- Prior art keywords
- screw
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- twin
- step method
- cocurrent
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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
- B29C48/25—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
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- 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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/39—Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
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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
- B29C48/25—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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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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
- B29C48/25—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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
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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
- B29C48/25—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
- B29C48/25—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
- B29C48/54—Screws with additional forward-feeding elements
-
- 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
- B29C48/55—Screws having reverse-feeding elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a device for producing high strength PET wood and plastic composite by a one-step method. The device has stable extrusion, non-carbonized plant fiber, easily controlled process, stable product color and lustre, and high yield. The device for producing high strength PET wood and plastic composite by the one-step method of the utility model comprises a first order co-rotating parallel twin-screw extrusion device, a feeding system which is linked up with the first order co-rotating parallel twin-screw extrusion device, a second order extrusion device, and a die, wherein the feeding system consists of a feeding device (I) and a feeding device (II), the feeding device (I) is located on the starting position of the twin screw of the first order co-rotating parallel twin-screw extrusion device, and the feeding device (II) is located on the midpoint position or the position at the back of the midpoint of the thin screw of the first order co-rotating parallel twin-screw extrusion device.
Description
Technical field
The utility model relates to a kind of equipment of producing composite, more specifically to a kind of equipment that is used for one-step method production high-strength PET wood-plastic composite material.
Background technology
Wood plastic composite is the new generation of green environment-friendly materials that are surging forward in the world in recent years, it mainly makes raw material is natural fiber (wood chip, sawdust, stalk, rice chaff etc.), plastics (PE, PP, PVC, ABS, PET, waste plastics, regenerated plastics etc.), and additive and processing aid such as modifier, compatilizer, lubricant, industrial pigment.The cost of wood plastic composite section bar is lower, alternative timber, and plastic products are widely used in the world, have also obtained common concern at home, and application constantly enlarges.
The manufacturing process of existing Wood Plastics Composite Product generally has two kinds, and a kind of is two-step method: use earlier the extruder granulation, extrude, pressurize by formed in mould two-step method making fabrication technique with single screw extrusion machine plasticizing or use tapering double screw extruder then; Another kind is the two rank of one-step method Wood plastic composite manufacturing equipments.
All there is shortcoming in these two kinds of manufacturing process when carrying out the production that PET wood moulds, because the PET fusing point is up to 265 ℃, string mixes the back synchronously to heating the charing point that surpasses string in 265 ℃ the process already with PET, cause fiber destruction.Two-step method equipment: string charing substantially when the extruder granulation earlier, all charings when extruding through the extruder secondary plasticizing again, the goods of making this moment have belonged to carbon and have moulded goods, and string has lost and itself filled, strengthened and improve the effect of product surface effect (wooden sensation is arranged).The equipment of one-step method still has most of charing owing to have only the charing degree of two plasticizing process strings of a relative two-step method of plasticizing process that certain weakening arranged.Reduce the fusing point of PET, the charing point temperature and the heatproof time of improving string from technology and can produce the not too serious PET wood plastic product of charing degree with one-step method equipment; The difficult control of processing parameter this moment, product surface is a bit darkish in color, and bigger with the different aberration of speed of production and temperature process, yield rate is low, can cause the significantly raising of goods cost simultaneously, causes waste.
The applicant had also applied for the equipment of relevant one-step method production wood plastic composite in the past, as the two rank of the disclosed a kind of one-step method of the Chinese patent Wood plastic composite manufacturing equipment that the patent No. is 200420078634.0, the day for announcing is on August 3rd, 2005, this equipment mainly is to adopt the cocurrent and parallel double screw extruder to combine with single screw extrusion machine to carry out one-step method production wood plastic composite; The two rank of the disclosed a kind of one-step method of Chinese patent that the patent No. is 200620068334.3, the day for announcing is on February 2nd, 2007 Wood plastic composite manufacturing equipment, this equipment mainly are to adopt the cocurrent and parallel double screw extruder to combine with conical double screw extruder to carry out one-step method production wood plastic composite.Though above two kinds of patents are all one-step method equipment, also have equipment and extrude stablely, the advantage that the density of product is high also fails to solve at the PET high-intensity wood plastic problem of string charing in process of production.Therefore, the new PET wood plastic composite manufacturing equipment of research and development is imperative.
Summary of the invention
The utility model has solved deficiency and the problem that exists in the above-mentioned present technology, a kind of equipment that one-step method is produced high-strength PET wood-plastic composite material that is used for is provided, and this equipment is extruded stable and not charing of string, and technology is controlled easily, the color and luster of product is stable, the yield rate height.
The utility model is achieved through the following technical solutions:
The equipment that is used for one-step method production high-strength PET wood-plastic composite material of the present utility model, the feed system, second rank extrusion device and the mould that include the first rank cocurrent and parallel double screw extruder, are connected with the first rank cocurrent and parallel double screw extruder, wherein said feed system is made up of drawing-in device I and drawing-in device II, drawing-in device I is positioned at the beginning position of the first rank cocurrent and parallel double screw extruder twin-screw, and drawing-in device II is positioned at the mid point of the first rank cocurrent and parallel double screw extruder twin-screw or mid point with the rear.Drawing-in device I is used for feeding PET plastics and relevant auxiliary materials, allows PET be introduced into screw rod and plastifies separately; Drawing-in device II is used for feeding string and relevant auxiliary materials, purpose is that string is mixed with the PET that has plastified, do not allow string pass through the high temperature plasticizing process of PET, can shorten the time of string like this through high temperature section, string is extruded once mixing with the PET of plasticizing at once, reduce the charing degree of string, produce qualified goods.
The equipment that is used for one-step method production high-strength PET wood-plastic composite material of the present utility model, its further technical scheme is that the described first rank cocurrent and parallel double screw extruder twin-screw is the reducing twin-screw, the reducing position is before drawing-in device II, and the twin-screw point diameter is less than the rear end diameter.The point diameter I allows PET fully plastify, and the rear end diameter can further shorten the time of string through high temperature section greatly, drops to the charing degree of string minimum.
The equipment that is used for one-step method production PET wood plastic composite of the present utility model, the little spiro rod length of point diameter that its further again technical scheme is the described first rank cocurrent and parallel double screw extruder twin-screw accounts for 1/2～3/4 of twin-screw total length; The point diameter that further again technical scheme is the described first rank cocurrent and parallel double screw extruder twin-screw is 33～160mm, and twin-screw total slenderness ratio L/D is 24～44.
The equipment that is used for one-step method production PET wood plastic composite of the present utility model, the rear end diameter that its further again technical scheme can also be the described first rank cocurrent and parallel double screw extruder twin-screw is 35.6～165mm.
The second rank extrusion device is conical double-screw or single screw extrusion machine, and this screw rod only need be built to extrude out and not need plasticizing process.
The equipment that is used for one-step method production high-strength PET wood-plastic composite material of the present utility model, preferred its screw mechanism of described cocurrent and parallel reducing double screw extruder adopts building block system, makes helical pitch adjustable size, screw rod outer radius variable, makes plasticizing process controlled with the screw combinations change.
The utlity model has following beneficial effect:
The equipment that is used for one-step method production high-strength PET wood-plastic composite material of the present utility model is extruded stable, and the goods aberration is little, not charing of string, product strength height, product density height; Can eat simultaneously the good soft material of into big particulate material and plasticizing, also be suitable for production with other high-melting plasticses and common plastics; Also have in addition equipment take up an area of little, save the manpower and the energy, the consumption of easy control of process conditions, manufactured goods quality height, manufacturing cost is low, the dispersion of raw material in the process, characteristics such as plasticizing effect is good, the goods inner materials is even, and service life of equipment is long.
Description of drawings
Fig. 1 is the basic structural representation of the utility model
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is a reducing position twin-screw structure for amplifying schematic diagram
Fig. 4 is that reducing position twin-screw amplifies schematic top plan view
The specific embodiment
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4,
The equipment that is used for one-step method production high-strength PET wood-plastic composite material of the present utility model, the feed system, the second rank extrusion device and the mould 21 that include the first rank cocurrent and parallel double screw extruder, are connected with the first rank cocurrent and parallel double screw extruder, wherein said feed system is made up of drawing-in device I and drawing-in device II, drawing-in device I is positioned at the beginning position of the first rank cocurrent and parallel double screw extruder twin-screw, and drawing-in device II is positioned at the mid point of the first rank cocurrent and parallel double screw extruder twin-screw or mid point with the rear.Drawing-in device I is used for feeding PET plastics and relevant auxiliary materials, allows PET be introduced into screw rod and plastifies separately; Drawing-in device II is used for feeding string and relevant auxiliary materials, purpose is that string is mixed with the PET that has plastified, do not allow string pass through the high temperature plasticizing process of PET, can shorten the time of string like this through high temperature section, string is extruded once mixing with the PET of plasticizing at once, reduce the charing degree of string, produce qualified goods.The described first rank cocurrent and parallel double screw extruder twin-screw is the reducing twin-screw, and the reducing position is before drawing-in device II, and the twin-screw point diameter is less than the rear end diameter.The point diameter I allows PET fully plastify, and the rear end diameter can further shorten the time of string through high temperature section greatly, drops to the charing degree of string minimum.
Drawing-in device I 5 feeds PET plastics and relevant auxiliary materials, is connected with the first rank cocurrent and parallel reducing double screw extruder I by blanking box 7; Drawing-in device II 12 is used for feeding string and relevant auxiliary materials, be positioned at the bigger diameter end behind the reducing 10,11, connect by the flange and the first rank cocurrent and parallel double screw extruder, machine barrel miner diameter end 8, with bigger diameter end 14, between have rebound 11 to be connected, concentric reducer 10 transition are arranged between screw rod miner diameter end 9 and the bigger diameter end 15; The second rank extrusion device is single screw rod, the first rank cocurrent and parallel double screw extruder and the parallel installation of the second rank extruder, and by connected body 16 connections, but connected body 16 seals, visual and vacuum suction.
The equipment of present embodiment also includes motor 1, shaft coupling 3, lubricating system 2, reduction box 4, and drawing-in device I 5 also comprises drying machine 6 and blanking chamber 7, and drawing-in device II 12 bands stir 13.The machine barrel 8,14 of the first rank cocurrent and parallel double screw extruder has more piece assembled, the processing sections length of the first rank cocurrent and parallel double screw extruder can be regulated according to the different material processing request different with goods, to reach best fabrication process condition, make residence time of material length suitable, guarantee material mixing, disperse, shear, mediate, plasticizing processing fully and control the length and the control charing of string.The centre position of machine barrel is equipped with screwing element, the effect of screwing element is to change according to different material to make up the optimization that is effective, be connected with the second rank extruder by connected body 17 again, the second rank extruder includes machine barrel 19, the screw rod 20 of motor 18, reduction box, the second rank extruder, makes the wood-plastic composite material products from the material that extruder comes out by wooden mold tool 21 moulding.
Technical parameter in the present embodiment is as follows:
The parallel parallel dual-screw extruding machine in first rank: screw rod end diameter 59.4mm, draw ratio L/D are 20, screw rod outside diameter 62.4mm, draw ratio L/D are 12, screw speed n is that 500rpm, the type of cooling are water-cooled, the PET feeding machine is to add drying machine 100 types on the 50 type metering feeding machines, and the string feeding machine is to add stirring on the 65 metering feeding machines.
The second rank single screw extrusion machine: screw diameter d is that 100mm, draw ratio 12: 1, compression ratio are 2, screw speed n is that 40rpm, the machine barrel type of cooling are air-cooled.
Claims (5)
1, a kind of equipment that is used for one-step method production high-strength PET wood-plastic composite material, the feed system, second rank extrusion device and the mould that include the first rank cocurrent and parallel double screw extruder, are connected with the first rank cocurrent and parallel double screw extruder, it is characterized in that described feed system is made up of drawing-in device I and drawing-in device II, drawing-in device I is positioned at the beginning position of the first rank cocurrent and parallel double screw extruder twin-screw, and drawing-in device II is positioned at the mid point of the first rank cocurrent and parallel double screw extruder twin-screw or mid point with the rear.
2, the equipment that is used for one-step method production high-strength PET wood-plastic composite material according to claim 1, it is characterized in that the described first rank cocurrent and parallel double screw extruder twin-screw is the reducing twin-screw, the reducing position is before drawing-in device II, and the twin-screw point diameter is less than the rear end diameter.
3, the equipment that is used for one-step method production PET wood plastic composite according to claim 2 is characterized in that the little spiro rod length of point diameter of the described first rank cocurrent and parallel double screw extruder twin-screw accounts for 1/2～3/4 of twin-screw total length.
4, the equipment that is used for one-step method production PET wood plastic composite according to claim 3 is characterized in that the point diameter of the described first rank cocurrent and parallel double screw extruder twin-screw is 33～160mm, and twin-screw total slenderness ratio L/D is 24～44.
5, the equipment that is used for one-step method production PET wood plastic composite according to claim 2 is characterized in that the rear end diameter of the described first rank cocurrent and parallel double screw extruder twin-screw is 35.6～165mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920041956U CN201371567Y (en) | 2009-03-19 | 2009-03-19 | Device for producing high strength PET wood and plastic composite by one-step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920041956U CN201371567Y (en) | 2009-03-19 | 2009-03-19 | Device for producing high strength PET wood and plastic composite by one-step method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371567Y true CN201371567Y (en) | 2009-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920041956U Expired - Lifetime CN201371567Y (en) | 2009-03-19 | 2009-03-19 | Device for producing high strength PET wood and plastic composite by one-step method |
Country Status (1)
| Country | Link |
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| CN (1) | CN201371567Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518942B (en) * | 2009-03-19 | 2011-08-10 | 南京赛旺科技发展有限公司 | Device for producing high-strength PET wood-plastic composite material by using one-step method |
| CN103273656A (en) * | 2013-06-03 | 2013-09-04 | 江苏昌盛建设集团有限公司 | Manufacture technology of plastic wood board |
-
2009
- 2009-03-19 CN CN200920041956U patent/CN201371567Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518942B (en) * | 2009-03-19 | 2011-08-10 | 南京赛旺科技发展有限公司 | Device for producing high-strength PET wood-plastic composite material by using one-step method |
| CN103273656A (en) * | 2013-06-03 | 2013-09-04 | 江苏昌盛建设集团有限公司 | Manufacture technology of plastic wood board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20090319 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20090319 |