CN2104745U - Machine head of one-step polyurethane insulating pipe production line - Google Patents
Machine head of one-step polyurethane insulating pipe production line Download PDFInfo
- Publication number
- CN2104745U CN2104745U CN 91228055 CN91228055U CN2104745U CN 2104745 U CN2104745 U CN 2104745U CN 91228055 CN91228055 CN 91228055 CN 91228055 U CN91228055 U CN 91228055U CN 2104745 U CN2104745 U CN 2104745U
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- flange
- links
- head
- handpiece body
- bolt
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a head section for producing polyurethane insulating pipes with one-step method. The utility model is composed of an extruder (1), a connecting body (4), a head section body (8), a transitional body (9), a core barrel (10), a correcting ring (11), a pressing ring (13), a sizing sleeve (15), a core mode (19), a spray gun (20), a neck mould (21), etc. The utility model has the advantages that the quality of produced polyurethane insulating pipe products is high, the production efficiency is 10 times as high as that of a two-step method, the commercial process can be realized, the closed porosity reaches 100 percents, the loss of foam material is small, the cost can be reduced by 10 percents, and one set of head section bodies can change 3-4 kinds of neck moulds and sizing sleeves, namely pipes with 3-4 kinds of specifications can be processed.
Description
The utility model relates to the head that a kind of one-step method is produced polyurethane thermal pipe.The head of prior art only is applicable to two step method production polyurethane thermal pipe, and its shortcoming one of the insulating tube of Sheng Chaning is that steel pipe and low-pressure polyethylene pipe positioning accuracy are not high in this way, and concentricity is not enough, influences heat insulation effect; The 2nd, the loss of foam material is big, the product cost height; The 3rd, foam unit weight is little, leakiness, and rate of closed hole is not high, and the phenomenon of foaming insatiable hunger often occurs; The 4th, be not suitable for producing winter; The 5th, production efficiency reduces.
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of one-step method production line head of producing the polyurethane thermal pipe of diameter of steel tube 25～325mm10 kind specification is provided.
The utility model accompanying drawing is the analysis of one-step method polyurethane thermal pipe production line head.(1) be single screw extrusion machine, (2) are the machine barrel flange, and (3) are the head flange, (4) be connector, (5) are the platen press orchid, and (6) are steel pipe, (7) be forward flange, (8) be handpiece body, (9) are the transition body, and (10) are the core tube, (11) be the levelling ring, (12) for joining flange, (13) are trim ring, and (14) are for deciding through the cover flange, (15) for deciding through cover, (16) be mat insulation, (17) are the machine head port mould flange, and (18) are rear flange, (19) be core, (20) be spray gun, (21) are a mouthful mould, and (22) are bolt.
Below in conjunction with accompanying drawing the utility model project organization embodiment is described in further detail.
Single screw extrusion machine (1) links to each other with head flange (3) by machine barrel flange (2) with connector (4), connector (4) links to each other with handpiece body (8) by platen press orchid (5), single screw extrusion machine (1) is T type structure with handpiece body (8), be that the single screw extrusion machine axis normal is in the head axis, handpiece body (8) requires H7/h6 to cooperate by certain cooperating with transition body (9) and core tube (10) on the one hand, connect by the pin hexagon socket head cap screw on the other hand, handpiece body (8) with join flange (12) by seam location, bolt connects, levelling ring (11) is joined flange (12) and is compressed, by regulating around bolt (22) levelling levelling ring (11) internal orifice the gap with core tube (10), trim ring (13) with join flange (12) and be connected with bolt and simultaneously can push down a mouthful mould (21), with join flange (12) end face seal, and mouthful mould (21) can be aligned the gap with core (19), even to reach the low-pressure polyethylene pipe thickness, machine head port mould flange (17) links to each other with screw thread and links to each other with bolt with calibration sleeve (15) by calibration sleeve flange (14) with a mouthful mould (21), core (19) and core tube (10) are with the replaceable all size that is threaded, forward flange (7) all links to each other with bolt with core (19) with handpiece body (8) and rear flange (18), steel pipe (6) passes forward flange (7), rear flange (18), steel pipe (6) is responsible for drawing-in motion.
Between mouth mould (21) and the calibration sleeve (14) polytetrafluoroethylene (PTFE) mat insulation (16) is arranged, prevent cold and hot transmission, it is long that spray gun (20) stretches out calibration sleeve (15) 120～150mm by the coaxial aperture on forward flange (7) and the rear flange (18), in the spray gun (20) simultaneously by polyisocyanates and polyalcohol raw material and 4Kg/cm
2Air pressure, low-pressure polyethylene tube wall thickness can be regulated by a levelling ring (11) and a mouthful mould (21).
The utility model is finished by following action: 1. the low-pressure polyethylene material enters head under the effect of extruder (1), by the annular space place inlet port mould (21) of handpiece body (8) with core tube (10) formation; 2. steel pipe (6) is delivered into head by hauling machine; 3. spray gun (20) sprays polyurethane foam between steel pipe (6) and low-pressure polyethylene pipe, and between 30～40 seconds, the foam material begins foaming after the material spray; 4. form the stifled gas that replaces of sealing after foam is initiated and block up effect, steel pipe (6) drives the low-pressure polyethylene pipe and plays draw; 5. open vacuum tube and cooling water pipe, low-pressure polyethylene is contacted with calibration sleeve (15); 6. levelling extruder rotating speed V1, hauling speed V2 and gas release make steel pipe, polyurethane foam and low-pressure polyethylene three synchronous.
The polyurethane thermal pipe product quality height that the utility model is produced, production efficiency is 10 times of two step method, good concentricity, can realize suitability for industrialized production, rate of closed hole reaches 100%, and the loss of foam material is little, can reduce cost 10%, one cover replaceable 3～4 kinds of mouth moulds of handpiece body and calibration sleeve can be processed the tubing of 3～4 kinds of specifications.
Claims (3)
1, a kind of one-step method is gathered propylhomoserin insulating tube production line head, it is characterized in that: single screw extrusion machine (1) links to each other with head flange (3) by machine barrel flange (2) with connector (4), connector (4) links to each other with handpiece body (8) by platen press orchid (5), single screw extrusion machine (1) is T type structure with handpiece body (8), handpiece body (8) cooperates by H7/h8 with transition body (9) and core tube (10) and is connected with the pin hexagon socket head cap screw, handpiece body (8) with join flange (12) by seam location, bolt connects, levelling ring (11) is joined flange (12) and is compressed, trim ring (13) with join flange (12) and be connected with bolt, mouthful mould (21) with join flange (12) end face seal, machine head port mould flange (17) links to each other with screw thread and links to each other with bolt with calibration sleeve (15) by calibration sleeve flange (14) with a mouthful mould (21), core (19) and core tube (10) are with being threaded, forward flange (7) all links to each other with bolt with core (19) with handpiece body (8) and rear flange (18), and steel pipe (6) passes forward flange (7), rear flange (18).
2, head according to claim 1 is characterized in that: between mouthful mould (21) and the calibration sleeve (14) polytetrafluoroethylene (PTFE) mat insulation (16) is arranged.
3, head according to claim 1, it is long to it is characterized in that spray gun (20) stretches out calibration sleeve (15) 120～150mm by the coaxial aperture on forward flange (7) and the rear flange (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91228055 CN2104745U (en) | 1991-11-13 | 1991-11-13 | Machine head of one-step polyurethane insulating pipe production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91228055 CN2104745U (en) | 1991-11-13 | 1991-11-13 | Machine head of one-step polyurethane insulating pipe production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2104745U true CN2104745U (en) | 1992-05-20 |
Family
ID=4933829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91228055 Granted CN2104745U (en) | 1991-11-13 | 1991-11-13 | Machine head of one-step polyurethane insulating pipe production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2104745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314254B (en) * | 2008-06-27 | 2010-06-23 | 宁波方力集团有限公司 | Extrusion mould head for plastic tube |
| CN102275288A (en) * | 2011-08-03 | 2011-12-14 | 句容市后白镇民生塑胶厂 | Mould for producing plastic pipe |
-
1991
- 1991-11-13 CN CN 91228055 patent/CN2104745U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314254B (en) * | 2008-06-27 | 2010-06-23 | 宁波方力集团有限公司 | Extrusion mould head for plastic tube |
| CN102275288A (en) * | 2011-08-03 | 2011-12-14 | 句容市后白镇民生塑胶厂 | Mould for producing plastic pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |