CN103507259A - Efficient large pipe-extrusion forming device - Google Patents
Efficient large pipe-extrusion forming device Download PDFInfo
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- CN103507259A CN103507259A CN201310430768.8A CN201310430768A CN103507259A CN 103507259 A CN103507259 A CN 103507259A CN 201310430768 A CN201310430768 A CN 201310430768A CN 103507259 A CN103507259 A CN 103507259A
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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
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
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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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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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
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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
- B29C48/03—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
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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
- B29C48/355—Conveyors for extruded articles
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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
- B29C48/425—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 using three or more 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
- B29C48/395—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
- B29C48/435—Sub-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
- B29C48/395—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
- B29C48/435—Sub-screws
- B29C48/44—Planetary 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
- B29C55/26—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes biaxial
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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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/904—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
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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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an efficient large pipe-extrusion forming device. The efficient large pipe-extrusion forming device mainly comprises a planet screw extruder, a gas-assisted extrusion forming machine head and a traction device, wherein the planet screw extruder comprises a temperature control system, a transmission system, a conveying section and a planet section; the planet section comprises a plurality of planet screws and a main screw. The gas-assisted extrusion forming machine head comprises a machine head body, a shunt cone, a shunt cone bracket, an opening die, a core rod, a gas nipple A, a gas nipple B, a porous embedded pipe A, a porous embedded pipe B, a gas chamber outer pipe, a nut, a sealing gasket, a connecting head, an opening die press plate, a gas nipple and a heating ring. The efficient large pipe-extrusion forming device can form a layer of uniform gas film on the inner and outer surfaces of a material through a gas-assisted extrusion technology, reduces the extrusion resistance of the material, solves the problem of low outlet pressure of the planet screw extruder, realizes mass production through the combination of the planet screw extruder and the gas-assisted extrusion forming machine head, and can produce high-strength and high-tenacity PVC-O pipes by performing axial and radial stretching on PVC pipe blanks.
Description
Technical field
The present invention relates to a kind of high-efficiency large tube extrusion shaped device, it can realize docking of Planetary Screw Extruder and pvc pipe material forming mouth mould, and realize the PVC-O type tubing of production high strength efficiently, high tenacity, belong to the extrusion molding equipment field of plastics machinery.
Technical background
PVC is heat sensitive material, and it to the requirement of extruder is: at alap temperature, melt has preferably evenly Combination; Can provide low and enough shearings to material, and working stability; Often the amount of changing the line of production is high, and the energy of extruding per kilogram supplies consumption is low; The dispersiveness of good additive, stabilizing agent and pigment, and mix.Produce at present both at home and abroad pvc pipe material technique and be comprise that batching, mixing, tapered double screw extruder are extruded, the operation such as extrusion die, calibration sleeve and spray vacuum shaping box, the method is discontinuous and the production cycle is long.And Planetary Screw Extruder plastifies, output is high, meet the target that manufacturing enterprise is pursued, in PVC processing, obtain applying more and more widely, but there is the low deficiency that waits of extrusion pressure in Planetary Screw Extruder, existing pvc pipe material extrusion molding die extrusion resistance is large, easily occurs " sharkskin " and extrudes the defect such as break, and is difficult to realize pvc pipe material high speed, high-quality extruding.
Summary of the invention
The object of the invention is for the existing deficiency of prior art, design a kind of compact conformation, efficient and high-quality large pipe extrusion molding apparatus, can not only bring into play the advantage that Planetary Screw Extruder plastifies, output is high, and can realize biaxial tension in pvc pipe material process, molecularly oriented, making production biaxial tension PVC(PVC-O) tubing becomes possibility, improves its toughness when improving pvc pipe material intensity.
The technical scheme that realizes above-mentioned purpose employing is: a kind of high-efficiency large tube extrusion shaped device, mainly comprise Planetary Screw Extruder, gas-assisted extrusion head and tubing cooling system, draw-gear, Planetary Screw Extruder, gas-assisted extrusion head, tubing cooling system and draw-gear are placed successively, Planetary Screw Extruder and gas-assisted extrusion head link together, Planetary Screw Extruder is by temperature control system, transmission system and transportation section and planet section form, planet section comprises a plurality of planetary-screws and driving screw, at the end of driving screw, having a bulb to be threaded connection with driving screw connects together, bulb and spreader seamlessly transit the delay that can not cause material, avoided the degraded of PVC, the rotation direction of bulb screw thread is contrary with the rotation direction of driving screw, so just can avoid bulb to come off in the process along with driving screw rotation.Gas-assisted extrusion head is comprised of handpiece body, spreader, spreader support, mouthful mould, plug, valve A, valve B, porous embedding pipe A, porous embedding pipe B, air chamber outer tube, nut, seal washer, coupling head, mouthful moulded board, valve and heating collar.Spreader, spreader support and a mouthful mould are connected with handpiece body by screw by mouth moulded board, and valve B is fixed on handpiece body, and handpiece body is provided with temperature element, and heating collar is positioned at handpiece body outside, for each part of head being heated to the temperature of setting, air chamber is by valve A, air chamber outer tube, air chamber outer tube, nut, porous embedding pipe A, porous embedding pipe B, coupling head and mouthful moulded board form, porous embedding pipe A for example, is fixed in the stepped hole of air chamber outer tube by matched in clearance (H7/f7) requirement, valve A is fixed on air chamber outer tube, nut, seal washer, porous embedding pipe B and coupling head are connected as a single entity air chamber outer tube and a mouthful mould by screw thread, pressured tight air chamber sealing circle is eliminated thread pitch, handpiece body is bolted with a mouthful moulded board, valve B passes through handpiece body, spreader support, plug and porous embedding pipe B are to air feed in shaping pipe, porous embedding pipe A and porous embedding pipe B are with the tubing in a plurality of holes on tube wall.After entering head, melting PVC material enters compression section through spreader, material here compresses, when material enters expanding section, extrusion neck ring mold has the trend of radial dilatation, particularly under the booster action of air-flow, make PVC melt in the process of mouth mould sizing along circumferential orientation, will produce stretching radially.When pvc pipe material from Air-Assisted Extrusion of Polymer head is extruded through draw-gear, the diameter of draw-gear should be slightly less than pipe diameter, under the effect of draw-gear, strand also stretches along lead, cause strand axial tension, thereby make the existing axial tension of PVC have again radial drawing, can produce the PVC-O tubing of high strength, high tenacity.
A kind of high-efficiency large tube extrusion of the present invention shaped device, porous embedding pipe A is the core part of whole head, this part is the metal powder sintered porous stainless steel metal sleeve forming of particle diameter 0.5 μ m.Gas-assisted extrusion head comprises two air-flows, first air-flow enters air chamber outer tube and enters middle gas chamber through porous embedding pipe A via valve A, so just the skin at material forms the uniform air film of one deck, improve the mobility of melt, reduce flow resistance, realize the gas assisted molding of tubing.Another air-flow is to enter middle gas chamber via valve B, spreader support and porous embedding pipe B, by pipe inflation and be close to the inwall of porous embedding pipe A, forms tubing shape.The air pressure of these two gas circuits should reach dynamic equilibrium, in production, mainly by adjustable pressure valve, realizes.Gas will reach suitable temperature through the pre-heat treatment before entering head, and no person will play cooling effect to melting PVC material, reduces pvc pipe material amount.
A kind of high-efficiency large tube extrusion of the present invention shaped device, when pvc pipe embryo enters draw-gear from Air-Assisted Extrusion of Polymer head is extruded, draw-gear is comprised of laterally zygomorphic two conveyer chains, and it is circular-arc that conveyer chain is, increased like this contact area of conveyer chain and pipe, ultimate range between two conveyer chains is less than the diameter of Air-Assisted Extrusion of Polymer head gas secondary segment outlet, owing to clamping frictional force, just can carry out axial stretching to pipe embryo like this, form axial orientation, improved the intensity of tubing.
The invention has the beneficial effects as follows:
1. use a kind of high-efficiency large tube extrusion of the present invention shaped device, by Air-Assisted Extrusion of Polymer technology, can all form at the surfaces externally and internally of material the uniform air film of one deck, reduced the resistance of extruding of material, solve the low problem of Planetary Screw Extruder outlet pressure, can after adding gas-assisted extrusion head of the present invention, extrude pvc pipe material.
2. use a kind of high-efficiency large tube extrusion of the present invention shaped device, because Planetary Screw Extruder has the features such as self-cleaning, plasticizing efficiency is high, blend is effective, output is high, specific energy consumption is low, being specially adapted to PVC extrudes, use Planetary Screw Extruder to add the combination of gas-assisted extrusion head, can improve output, realize large batch of production.
3. use the present invention's a kind of high-efficiency large tube extrusion forming method and device, when material passes through the expanding section of gas-assisted extrusion head, can produce stretching radially, when pvc pipe material from Air-Assisted Extrusion of Polymer head is extruded through draw-gear, the diameter of draw-gear should be slightly less than pipe diameter, can produce so an axial stretching, thereby make the existing axial tension of PVC have again radial drawing, can produce high strength, the PVC-O material of high tenacity, thereby make the existing axial tension of PVC have again radial drawing, can produce high strength, the PVC-O tubing of high tenacity.
Accompanying drawing explanation
Fig. 1 is a kind of high-efficiency large tube extrusion of the present invention shaped device structural representation.
Fig. 2 is the head expanding section partial enlarged drawing of a kind of high-efficiency large tube extrusion of the present invention shown in Fig. 1 shaped device.
，1-transportation section in figure, 2-planet section, 3-planetary-screw, 4-driving screw, 5-bulb, 6-handpiece body, 7-spreader support, 8-mouth mould, 9-plug, 10-valve A, 11-air chamber outer tube, 12-seal washer, 13-draw-gear, 14-chain link, 15-nut, 16-vacuum sizing device, 17-porous embedding pipe A, 18-porous embedding pipe B, 19-coupling head, 20-mouth moulded board, 21-heating collar, 22-valve B, 23-spreader.
The specific embodiment
A kind of high-efficiency large tube extrusion of the present invention shaped device, as depicted in figs. 1 and 2, this extrusion molding apparatus comprises Planetary Screw Extruder, gas-assisted extrusion head and draw-gear, described Planetary Screw Extruder is by temperature control system, transmission system and transportation section 1 and planet section 2 form, planet section 2 comprises a plurality of planetary-screws 3 and driving screw 4, end at driving screw 4 has a bulb 5, bulb 5 is threaded connection with driving screw 4 and connects together, bulb 5 seamlessly transits the delay that can not cause material with spreader 23, avoided the degraded of PVC, the rotation direction of bulb 5 screw threads is contrary with the rotation direction of driving screw, so just can avoid bulb 5 to come off in the process along with driving screw 4 rotations.Gas-assisted extrusion head is comprised of handpiece body 6, spreader 23, spreader support 7, mouthful mould 8, plug 9, valve A10, valve B22, air chamber outer tube 11, nut 15, seal washer 12, porous embedding pipe A17, porous embedding pipe B18, coupling head 19, mouthful moulded board 20 and heating collar 21.Air chamber consists of valve A10, air chamber outer tube 11, air chamber outer tube 12, nut 15, porous embedding pipe A17, porous embedding pipe B18, coupling head 19 and a mouthful moulded board 20, porous embedding pipe A17 for example, is fixed in the stepped hole of air chamber outer tube 11 by matched in clearance (H7/f7) requirement, valve A10 is fixed on air chamber outer tube 11, nut 15, seal washer 12, porous embedding pipe B18 and coupling head 19 combine as a whole air chamber outer tube 11 and a mouthful mould 8 by screw thread, pressured tight air chamber sealing circle 12 is eliminated thread pitch, and handpiece body 6 is bolted with a mouthful moulded board 20.Melting PVC material enters compression section through spreader 23 after entering head, material is compression compact here, when material enters expanding section, will produce stretching radially, when pvc pipe material from Air-Assisted Extrusion of Polymer head is extruded through draw-gear, the diameter of draw-gear should be slightly less than pipe diameter, can produce so an axial stretching, thereby make the existing axial tension of PVC have again radial drawing, can produce the PVC-O tubing of high strength, high tenacity.
A kind of high-efficiency large tube extrusion of the present invention shaped device, as shown in Figure 1, the tubing of processing can be set up vacuum sizing device 16 or other spray cooling systems between Air-Assisted Extrusion of Polymer head and draw-gear 13, porous embedding pipe A17 is the core part of whole head, and this part is the metal powder sintered porous stainless steel metallic sheath forming of particle diameter 0.5 μ m.Gas-assisted extrusion head comprises two air-flows, first air-flow enters air chamber outer tube 11 and enters middle gas chamber through porous embedding pipe A17 via valve A10, so just the skin at material forms the uniform air film of one deck, improve the mobility of melt, reduce flow resistance, realize the gas assisted molding of tubing.Another air-flow is to enter middle gas chamber via valve 22, spreader support 7 and porous embedding pipe B18, by pipe inflation and be close to the inwall of porous embedding pipe A17, forms tubing shape.The air pressure of these two gas circuits should reach dynamic equilibrium, in production, mainly by adjustable pressure valve, realizes.Gas will reach suitable temperature through the pre-heat treatment before entering head, and no person will play cooling effect to melting PVC material, reduces pvc pipe material amount.
A kind of high-efficiency large tube extrusion of the present invention shaped device, as shown in Figure 1, when pvc pipe base enters draw-gear 13 from the expansion of Air-Assisted Extrusion of Polymer head extruded circumferential, draw-gear 13 is comprised of laterally zygomorphic two conveyer chains, and 14 one-tenth of chain links are circular-arc, increased like this contact area of conveyer chain with pipe embryo, ultimate range between two conveyer chains is less than the diameter of Air-Assisted Extrusion of Polymer head gas secondary segment outlet, owing to clamping frictional force, just can carry out axial stretching to pipe embryo like this, form axial orientation, improved the intensity of tubing.
Claims (5)
1. a high-efficiency large tube extrusion shaped device, it is characterized in that: mainly comprise Planetary Screw Extruder, gas-assisted extrusion head and tubing cooling system, draw-gear, Planetary Screw Extruder, gas-assisted extrusion head, tubing cooling system and draw-gear are placed successively, Planetary Screw Extruder and gas-assisted extrusion head link together, Planetary Screw Extruder is by temperature control system, transmission system and transportation section and planet section form, planet section comprises a plurality of planetary-screws and driving screw, at the end of driving screw, having a bulb to be threaded connection with driving screw connects together, bulb and spreader seamlessly transit, the rotation direction of bulb screw thread is contrary with the rotation direction of driving screw, gas-assisted extrusion head is comprised of handpiece body, spreader, spreader support, mouthful mould, plug, valve A, valve B, porous embedding pipe A, porous embedding pipe B, air chamber outer tube, nut, seal washer, coupling head, mouthful moulded board, valve and heating collar, spreader, spreader support and a mouthful mould are connected with handpiece body by screw by mouth moulded board, valve B is fixed on handpiece body, handpiece body is provided with temperature element, heating collar is positioned at handpiece body outside, for each part of head being heated to the temperature of setting, air chamber consists of valve A, air chamber outer tube, air chamber outer tube, nut, porous embedding pipe A, porous embedding pipe B, coupling head and a mouthful moulded board, porous embedding pipe A is fixed in the stepped hole of air chamber outer tube, valve A is fixed on air chamber outer tube, nut, seal washer, porous embedding pipe B and coupling head are connected as a single entity air chamber outer tube and a mouthful mould by screw thread, handpiece body is bolted with a mouthful moulded board, valve B by handpiece body, spreader support, plug and porous embedding pipe B to air feed in shaping pipe, porous embedding pipe A and porous embedding pipe B are with the tubing in a plurality of holes on tube wall.
2. a kind of high-efficiency large tube extrusion shaped device according to claim 1, is characterized in that: porous embedding pipe A is by the metal powder sintered porous stainless steel metal sleeve forming of particle diameter 0.5 μ m.
3. a kind of high-efficiency large tube extrusion shaped device according to claim 1, it is characterized in that: described planet section driving screw end is connected with a bulb, bulb is with driving screw by being threaded, and the thread rotary orientation of bulb is contrary with the rotation direction of driving screw.
4. a kind of high-efficiency large tube extrusion shaped device according to claim 1, is characterized in that: gas reaches suitable temperature through the pre-heat treatment before entering head.
5. a kind of high-efficiency large tube extrusion shaped device according to claim 1, it is characterized in that: draw-gear is comprised of laterally zygomorphic two conveyer chains, ultimate range between two conveyer chains is less than the diameter of Air-Assisted Extrusion of Polymer head gas secondary segment outlet, and chain link becomes circular-arc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310430768.8A CN103507259B (en) | 2013-09-21 | 2013-09-21 | Efficient large pipe-extrusion forming device |
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| CN201310430768.8A CN103507259B (en) | 2013-09-21 | 2013-09-21 | Efficient large pipe-extrusion forming device |
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| CN103507259A true CN103507259A (en) | 2014-01-15 |
| CN103507259B CN103507259B (en) | 2015-06-17 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002465A (en) * | 2014-05-15 | 2014-08-27 | 华南理工大学 | Expanding-microshrinking biaxially-stretched pipe continuous molding method and equipment |
| CN104816454A (en) * | 2015-04-10 | 2015-08-05 | 苏州固基电子科技有限公司 | Novel tube extruding auxiliary engine |
| CN104816453A (en) * | 2015-04-10 | 2015-08-05 | 苏州固基电子科技有限公司 | Tube extruding auxiliary engine used for plastic hard tube |
| CN105172097A (en) * | 2015-07-29 | 2015-12-23 | 佛山市日丰企业有限公司 | Online biaxial orientation extrusion mold for plastic small-caliber tube |
| CN105196514A (en) * | 2015-07-29 | 2015-12-30 | 佛山市日丰企业有限公司 | Extrusion molding mould of online biaxially oriented plastic large diameter pipe |
| CN107344414A (en) * | 2017-08-03 | 2017-11-14 | 安徽蓝通科技股份有限公司 | A kind of PVC sizing mill |
| CN107775924A (en) * | 2017-10-24 | 2018-03-09 | 安徽骏泰塑业科技有限公司 | A kind of large pipe extrusion molding apparatus |
| CN109333966A (en) * | 2018-11-20 | 2019-02-15 | 上海公元建材发展有限公司 | A kind of production of FRPP reinforcement tubing extrusion molding mould and production method |
| CN114643686A (en) * | 2022-03-23 | 2022-06-21 | 大连理工大学 | Precise polyvinylidene fluoride pipe extrusion die with stock mould structure |
| CN115179539A (en) * | 2022-02-22 | 2022-10-14 | 赵成刚 | High-speed positive-pressure thermal shrinkage pipe expander |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924179B1 (en) * | 1968-11-01 | 1974-06-20 | ||
| US3825379A (en) * | 1972-04-10 | 1974-07-23 | Exxon Research Engineering Co | Melt-blowing die using capillary tubes |
| DE10249141A1 (en) * | 2002-10-22 | 2004-05-06 | Contitech Schlauch Gmbh | Die head for production of hollow, internally coated products such as hoses has air and lubricant feed channels with outlets inside the die nozzle outlet |
| CN2871170Y (en) * | 2006-02-20 | 2007-02-21 | 四川大学 | Extruding plate former of air-aid lubricating superhigh viscosity polymer |
| CN102825752A (en) * | 2012-08-16 | 2012-12-19 | 南昌大学 | Gas-assistant extrusion molding device |
| CN203580084U (en) * | 2013-09-21 | 2014-05-07 | 北京化工大学 | Efficient large-sized pipe extrusion molding device |
-
2013
- 2013-09-21 CN CN201310430768.8A patent/CN103507259B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924179B1 (en) * | 1968-11-01 | 1974-06-20 | ||
| US3825379A (en) * | 1972-04-10 | 1974-07-23 | Exxon Research Engineering Co | Melt-blowing die using capillary tubes |
| DE10249141A1 (en) * | 2002-10-22 | 2004-05-06 | Contitech Schlauch Gmbh | Die head for production of hollow, internally coated products such as hoses has air and lubricant feed channels with outlets inside the die nozzle outlet |
| CN2871170Y (en) * | 2006-02-20 | 2007-02-21 | 四川大学 | Extruding plate former of air-aid lubricating superhigh viscosity polymer |
| CN102825752A (en) * | 2012-08-16 | 2012-12-19 | 南昌大学 | Gas-assistant extrusion molding device |
| CN203580084U (en) * | 2013-09-21 | 2014-05-07 | 北京化工大学 | Efficient large-sized pipe extrusion molding device |
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| CN104002465A (en) * | 2014-05-15 | 2014-08-27 | 华南理工大学 | Expanding-microshrinking biaxially-stretched pipe continuous molding method and equipment |
| CN104816454A (en) * | 2015-04-10 | 2015-08-05 | 苏州固基电子科技有限公司 | Novel tube extruding auxiliary engine |
| CN104816453A (en) * | 2015-04-10 | 2015-08-05 | 苏州固基电子科技有限公司 | Tube extruding auxiliary engine used for plastic hard tube |
| CN105196514B (en) * | 2015-07-29 | 2019-01-18 | 日丰企业集团有限公司 | A kind of extrusion molding mould of online biaxial orientation plastics heavy caliber pipe |
| CN105172097A (en) * | 2015-07-29 | 2015-12-23 | 佛山市日丰企业有限公司 | Online biaxial orientation extrusion mold for plastic small-caliber tube |
| CN105196514A (en) * | 2015-07-29 | 2015-12-30 | 佛山市日丰企业有限公司 | Extrusion molding mould of online biaxially oriented plastic large diameter pipe |
| CN105172097B (en) * | 2015-07-29 | 2019-05-07 | 日丰企业集团有限公司 | A kind of extrusion molding mould of online biaxial orientation plastics minor caliber pipe |
| CN107344414A (en) * | 2017-08-03 | 2017-11-14 | 安徽蓝通科技股份有限公司 | A kind of PVC sizing mill |
| CN107775924A (en) * | 2017-10-24 | 2018-03-09 | 安徽骏泰塑业科技有限公司 | A kind of large pipe extrusion molding apparatus |
| CN109333966A (en) * | 2018-11-20 | 2019-02-15 | 上海公元建材发展有限公司 | A kind of production of FRPP reinforcement tubing extrusion molding mould and production method |
| CN115179539A (en) * | 2022-02-22 | 2022-10-14 | 赵成刚 | High-speed positive-pressure thermal shrinkage pipe expander |
| CN114643686A (en) * | 2022-03-23 | 2022-06-21 | 大连理工大学 | Precise polyvinylidene fluoride pipe extrusion die with stock mould structure |
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