CN108454142A - PVC plastic pipe external member and its former - Google Patents

PVC plastic pipe external member and its former Download PDF

Info

Publication number
CN108454142A
CN108454142A CN201711486638.0A CN201711486638A CN108454142A CN 108454142 A CN108454142 A CN 108454142A CN 201711486638 A CN201711486638 A CN 201711486638A CN 108454142 A CN108454142 A CN 108454142A
Authority
CN
China
Prior art keywords
tube
connecting tube
socket
pvc
bending part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711486638.0A
Other languages
Chinese (zh)
Inventor
郑舒婴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201711486638.0A priority Critical patent/CN108454142A/en
Publication of CN108454142A publication Critical patent/CN108454142A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight joints
    • B29D23/006—Elbows
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/08—Bending or folding of tubes or other profiled members
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/84—Heating or cooling
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L43/00—Bends; Siphons
    • F16L43/008—Bends; Siphons made from plastic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention discloses PVC plastic pipe external member and its formers, include straight tube and connecting tube, and straight tube one end forms bell and spigot；Connecting tube includes the socket end of integrally connected, bending part and female end successively；The outer diameter of socket end, the internal diameter of female end are equal with straight tube outer diameter；Angle of the connecting tube in the initial state between socket end, the axial direction of female end is 90 °；Bending part includes interior pipe portion and the outer tube part outside interior pipe portion；The socket end of connecting tube, interior pipe portion and female end are by conventional PVC material integrated injection molding；Outer tube part is embedded by conductive PVC material integrated injection molding, and in the outer tube part end positions respectively there are one electrode retaining collar；It is arranged with a heat-shrink tube outside bending part；It is inserted with a heat-resistant rubber hose in bending part, support steel ring is equidistantly embedded with along its length in heat-resistant rubber hose；Bending part angle can be adjusted flexibly in the present invention, be suitable for various complex topographic territory pipe laying in this way, flexibility bigger of constructing.

Description

PVC plastic pipe external member and its former
Technical field
The invention belongs to plastic conduit fields, and in particular to a kind of PVC plastic pipe external member.
Background technology
Hard PVC pipe is usually used in being laid with blow-off line, and generally use Push-fit connects between two neighboring pvc pipe It connects, i.e., processes internal diameter and the comparable bellmouth of pvc pipe outer diameter in pvc pipe one end, one end of bellmouth and adjacent pvc pipe passes through sealing Circle connection is bonded by bonding agent.Two straight pvc pipes then are connected using the angled connecting tube of tool in pipeline corner, General connecting tube is made as 90 degree of swan neck, and in the more complicated region of landform, for example turn angle is non-standard angle When, it needs to be attached using multiple swan necks cooperation multistage straight tube, influences construction speed and frequent turn round makes pipeline hold It is also easy to produce blocking, influences drainage speed.
Invention content
The technical problem to be solved by the present invention is to：In view of the deficienciess of the prior art, providing a kind of with cornering angle Degree can need the PVC plastic pipe external member that connecting tube is adjusted flexibly according to landform.
Purpose to realize the present invention, is achieved using following technical scheme：A kind of PVC plastic pipe external member includes Straight tube and connecting tube, described straight tube one end form bell and spigot, and the internal diameter of bell and spigot is equal with the outer diameter of straight tube；
The connecting tube includes the socket end of integrally connected, bending part and female end successively；The outer diameter of the socket end, The internal diameter of female end is equal with straight tube outer diameter；
Angle of the connecting tube in the initial state between socket end, the axial direction of female end is 90 °；
The bending part includes interior pipe portion and the outer tube part outside interior pipe portion；It is the socket end of the connecting tube, interior Pipe portion and female end are by conventional PVC material integrated injection molding；
The outer tube part is embedded with by conductive PVC material integrated injection molding in the outer tube part end positions respectively One electrode retaining collar is connected with the electrode exposed outside outer tube part on two electrode retaining collars；
It is arranged with a heat-shrink tube outside the bending part；A heat-resistant rubber hose is inserted in the bending part, it is described resistance to Hot rubber tube is bellows structure, and support steel ring is equidistantly embedded with along its length in heat-resistant rubber hose；It is two neighboring described The distance between steel ring is supported to be less than the 1/15 of socket end internal diameter；Sequentially connected by connecting steel disc between each support steel ring Be connected together, and heat-resistant rubber hose be inserted into connecting tube after so that connection steel disc is located at the inside of connecting tube bent angle position.
When adjusting connecting tube bending angle, it is inserted in faucet part using first metal bar, uses second metal bar It is inserted in socket；Connecting with the mains on two electrodes makes bending part fever softening, power supply is then turned off, by two metal bars toward phase Separate direction bending makes bending part be deformed, until making connecting tube cooling harden again using water spray way after proper angle；
The first metal nose forms a bellmouth positioning region to match with faucet part internal diameter；First metal bar Front end is also molded that there are one the bellmouth oversheaths that internal diameter and faucet part outer diameter match；On second metal bar there are one moldings Socket oversheath, space between the socket oversheath and the second metal bar outer wall just with the size phase of the socket end Match.
Preferably：The conduction PVC material includes following components by weight percentage：
PVC 60
Carbon black 15
Electrically conductive polyaniline 15
Polyethylene wax 2
Triphenyl phosphate 7
Magnesium stearate 1
Wherein, the grain size of carbon black is 0.2 μm
It is described conduction PVC material preparation method be：
1) PVC and polyethylene wax are put into kneading machine and are kneaded, mixed jointly until other components are added when viscous state is presented in PVC Refining；
2) upper step material is sent into extrusion granulator machine, extrusion obtains PVC material grains；
Then PVC material grains are sent into injection molding machine and are molded into the connecting tube.
Preferably：It is be bonded by bonding agent between two neighboring straight tube and between straight tube and connecting tube；It is described Bonding agent includes following components by weight：
Dioxane 23
Methanol 12
Hexone 57
Dioctyl phthalate (plasticizer) 3
Glacial acetic acid (non-solvent) 2
Two acetone 3 of different two contracting.
Preferably：The straight tube is cut off by a continuous pipe and is formed, the pipe in extrusion molding, Every the molding of one section of setpoint distance there are one socket joint oral area, socket joint oral area is cut off by cutting machine in centre position, is formed described Bell and spigot, partial cut of the pipe between two neighboring bell and spigot form the straight tube described in two sections.
Preferably：The rubber pipe outer wall is be bonded by glue with the inner wall of connecting tube bending part.
The invention also discloses a kind of former of PVC plastic pipe, described PVC plastic pipe one end has bell and spigot Portion includes the extruder being sequentially arranged, machine head port mould, vertical forming device, Vacuum shaping spraying box, dragger, cutting machine With heap pipe support；The machine head port mould is connected to the discharge end of extruder；
The plug outer end of the machine head port mould is connected with connecting rod, and there are one plug assemblies for the other end connection of connecting rod, described Plug assembly includes the fixed plate being fixedly connected with connecting rod, the guide rod for being connected in fixed plate and being coaxially disposed with connecting rod, Gu Dingan County is mounted in the electromagnet of fixed plate and guide rod homonymy, the pressing steel plate being slidably mounted on guide rod, and is mounted on fixed plate Annular rubber ring between pressing steel plate；
The vertical forming device includes about two groups horizontally disposed transmission chains, and mounted on two groups of transmission chains it Between half die, the half die includes multigroup for being molded the straight tube mold of straight tube main part, and at least one Socket joint oral area mold of the group for being molded socket joint oral area part.
Compared with prior art, the beneficial effects of the invention are as follows：Since the outer tube part of the connecting tube is conduction PVC materials Material is integrally formed, and is embedded with electrode retaining collar in outer tube part end positions, in this way when being passed through electric current to two electrode retaining collars, can make two Outer tube part position between a electrode retaining collar softens together with interior pipe portion is heated, to the angle of adjustable bending part, is suitable in this way The laying of various complex topographic territory pipelines, flexibility bigger of constructing.
Since connecting tube original state is shaped to 90 ° of states, such connecting tube can be used directly, and also make after changeable angle With when needing to adjust connection tube angulation, in order to avoid the inner side of bending part (deviate from overbending direction side) is stretched Thickness is thinning to lead to strength reduction, and avoids being formed to squeeze on the outside of bending part that latus rectum is caused to reduce, therefore at least in connecting tube Bending part is built into a heat-resistant rubber hose, and supporting steel circle is embedded in heat-resistant rubber hose, so in the process of bending can base The latus rectum of this holding connecting tube bending part position is constant.The steel disc for connecting each support steel ring makes when bending part is bent, only Generation compression on the outside of bending part, side not will produce stretching and thinning, the bending part compression thickness of side generation outwardly to bending part inwardly Degree can increase, and when bending angle is larger, outer tube part outer wall may form fold, and unfavorable shadow is not generated to the intensity of connecting tube It rings.
The heat-shrink tube generates contraction after heated, generates extruding to bending part position, especially makes bending part outer fix More uniform thickness is formed by pressure inwardly, is conducive to ensure the overall mechanical strength of connecting tube.
During being bent to connecting tube, the bellmouth oversheath of first metal bar coordinates bellmouth by female end It is clipped in the middle, socket end is clipped in the middle by the socket oversheath and the cooperation of the second metal bar, such female end and socket end Point shape can keep stable, it is ensured that smooth connection that can be between straight tube.In addition, since electrode retaining collar is to be located at bending part End positions, female end and socket end part do not have electric current process, and temperature is relatively low, is conducive to bellmouth, socket end keeps stablizing yet Shape.
It makes the conductive PVC material of the materials'use of the connecting tube and provides possibility easily to be bent for connecting tube, The conduction PVC material contains carbon black and electrically conductive polyaniline simultaneously, can ensure that the preferable electric conductivity of PVC material in this way, and be added Content of carbon black is relatively low, can ensure the mechanical strength of connecting tube after molding.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of connecting tube original state,
Fig. 3 is the schematic cross-sectional view of connecting tube original state.
Fig. 4 is the structural schematic diagram of heat-resistant rubber hose.
Fig. 5 is the schematic diagram for bending connecting tube process.
Fig. 6 is the structural schematic diagram of the first metal bar and the second metal bar.
Fig. 7 is the structural schematic diagram for the equipment for being molded the straight tube.
Fig. 8 is machine head port mould and the structural schematic diagram of vertical forming device part.
Fig. 9 is the structural schematic diagram of embodiment 4.
Figure 10 is the portions the B schematic enlarged-scale view of Fig. 9.
Figure 11 is configuration state figure when plug assembly is molded the socket joint oral area.
P, connecting tube；Q, straight tube；1, socket end；2, bending part；2a, interior pipe portion；2b, outer tube part；3, female end；4, pyrocondensation Pipe；5, electrode；51, electrode retaining collar；7, heat-resistant rubber hose；71, steel ring is supported；72, steel disc is connected；61, extruder；62, head mouth Mould；621, connecting rod；622, plug；623, plug assembly；6230, annular rubber ring；6231, fixed plate；6232, guide rod；6233、 Electromagnet；6234, pressing steel plate；63, vertical forming device；64, Vacuum shaping spraying box；65, dragger；66, cutting machine； 67, heap pipe support；91, the first metal bar；911, bellmouth oversheath；912, bellmouth positioning region；92, the second metal bar；921, socket Oversheath.
Specific implementation mode
Embodiment 1
According to fig. 1 to fig. 6, a kind of PVC plastic pipe external member described in the present embodiment, includes straight tube Q and connecting tube P, described straight tube one end form bell and spigot, and the internal diameter of bell and spigot is equal with the outer diameter of straight tube.
The connecting tube includes socket end 1, bending part 2 and the female end 3 of integrally connected successively；Outside the socket end Diameter, the internal diameter of female end are equal with straight tube outer diameter.
Angle of the connecting tube in the initial state between socket end, the axial direction of female end is 90 °.
The bending part includes the interior pipe portion 2a and outer tube part 2b outside interior pipe portion；The socket of the connecting tube End, interior pipe portion and female end are by conventional PVC material integrated injection molding.
The outer tube part is embedded with by conductive PVC material integrated injection molding in the outer tube part end positions respectively One electrode retaining collar 51 is connected with the electrode 5 exposed outside outer tube part on two electrode retaining collars.
When being molded the connecting tube, the socket end of connecting tube, interior pipe portion described in PVC material one-pass molding conventional first and hold Mouth end, then more mold exchange, uses the outer tube part described in conductive PVC material post forming.
It is arranged with a heat-shrink tube 4 outside the bending part；A heat-resistant rubber hose 7 is inserted in the bending part, it is described Heat-resistant rubber hose is bellows structure, is equidistantly embedded with support steel ring 71 in heat-resistant rubber hose along its length；It is two neighboring The distance between described support steel ring is less than the 1/15 of socket end internal diameter；By connecting steel disc 72 between each support steel ring Be sequentially connected with together, and heat-resistant rubber hose be inserted into connecting tube after so that connection steel disc is located at the inside of connecting tube bent angle position.
When adjusting connecting tube bending angle, it is inserted in faucet part using first metal bar 91, uses second metal Stick 92 is inserted in socket；Connecting with the mains on two electrodes makes bending part fever softening, power supply is then turned off, by two metal bars Bending part is set to be deformed toward mutually separate direction bending, until keeping connecting tube cooling again hard using water spray way after proper angle Change；
The first metal nose forms a bellmouth positioning region 912 to match with faucet part internal diameter；First gold medal Belong to nose and also be molded that there are one the bellmouth oversheaths 911 that internal diameter and faucet part outer diameter match；On second metal bar at Type there are one socket oversheath 921, space between the socket oversheath and the second metal bar outer wall just with the socket The size at end matches.
The rubber pipe outer wall is be bonded by glue with the inner wall of connecting tube bending part.
Embodiment 2
The present embodiment makes further restriction and explanation on the basis of embodiment 1, specifically：
The conduction PVC material includes following components by weight percentage：
PVC 60
Carbon black 15
Electrically conductive polyaniline 15
Polyethylene wax 2
Triphenyl phosphate 7
Magnesium stearate 1
Wherein, the grain size of carbon black is 0.2 μm
It is described conduction PVC material preparation method be：
1) PVC and polyethylene wax are put into kneading machine and are kneaded, mixed jointly until other components are added when viscous state is presented in PVC Refining；
2) upper step material is sent into extrusion granulator machine, extrusion obtains PVC material grains；
Then PVC material grains are sent into injection molding machine and are molded into the connecting tube.
It is be bonded by bonding agent between two neighboring straight tube and between straight tube and connecting tube；The bonding agent is by weight Include following components than meter：
Dioxane 23
Methanol 12
Hexone 57
Dioctyl phthalate (plasticizer) 3
Glacial acetic acid (non-solvent) 2
Two acetone 3 of different two contracting.
Angle of the connecting tube in the initial state between socket end, the axial direction of female end is 160-175 °.It is molded into For connecting tube tool after type there are one initial angle, such connecting tube can make angle towards horizontal direction when horizontal positioned, be conducive to curved The positioning of connecting tube when rolling over connecting tube.
The heat-resistant rubber hose is made of heat resistant rubber material, the heat resistant rubber material include by weight percentage with Lower component is made：
Hydrogenated nitrile-butadiene rubber 43
Butyl rubber 9
ABS resin 9
Benzoquinone 1
Lead oxide 2
Magnesia 1.5
Accelerator DM 2
Trioctyl trimellitate (TOTM) 1.5
Epoxidized soybean oil 1
Environmental protection fire retarding agent FR-T801 1.5
Antimony oxide 1.5
Talcum powder 14
Concave convex rod is modified clay 12
New Type of Rubber Reinforcer XRE 1；
Hydrogenated nitrile-butadiene rubber, butyl rubber and ABS resin are first subjected to the 5min that plasticates, rotating speed 55r/min on mixer, Then it is kneaded 6min, rotating speed 60r/min, trioctyl trimellitate (TOTM), epoxidized soybean oil, talcum powder, concave convex rod is proportionally added into and changes Property clay, New Type of Rubber Reinforcer XRE be kneaded 5min, add environmental protection fire retarding agent FR-T801 with antimony oxide and be kneaded 6min, Then benzoquinone, lead oxide, magnesia and vulcanization are added in obtained material and promotes for dumping when temperature is 135 DEG C, slice Agent DM is kneaded 3min, and discharge obtains the heat resistant rubber material when temperature is 140 DEG C.
The present embodiment provides a kind of concrete implementation scheme for the implementation of embodiment 1, wherein the raw material and processing side Method has used best proportioning, parameter, in order to implement the present invention, obtains corresponding technique effect.Wherein bonding agent, heat-resisting Rubber material has been not excluded for other suitable implementations.
Embodiment 3
Shown in conjunction with Fig. 7, Fig. 8, the present embodiment makes further restriction and explanation on the basis of embodiment 1 or 2, Specifically：
The straight tube is cut off by a continuous pipe and is formed, and the pipe is in extrusion molding, every one section of setting There are one socket joint oral area, socket joint oral areas to be cut off in centre position by cutting machine for distance molding, forms the bell and spigot, the pipe Partial cut of the son between two neighboring bell and spigot forms the straight tube described in two sections.
The equipment for being molded the pipe include the extruder 61 being sequentially arranged, machine head port mould 62, vertical forming device 63, Vacuum shaping spraying box 64, dragger 65, cutting machine 66 and heap pipe support 67；The machine head port mould is connected to the discharging of extruder End.
The plug outer end of the machine head port mould is connected with connecting rod 621, and the other end connection of connecting rod is there are two plug 622, and two A plug the distance between be more than 1.5 times of bell and spigot minister's degree.In this way when socket joint oral area passes through plug position, Bu Huiyin The just pipe parts from head die extrusion are caused to be led because losing internal pressure less than the internal diameter of socket joint oral area for plug diameter (internal pressure refers to the air pressure that the gas being passed through by machine head port mould in pipe generates to mutagens shape, is used for freshly extruded pipe It is pressed on the inner wall of vertical forming device).
The connecting rod is replaced by chain, but the connecting rod of hard is still used to be connected between two plugs.
The vertical forming device includes about two groups horizontally disposed transmission chains, and mounted on two groups of transmission chains it Between half die, the half die includes multigroup for being molded the straight tube mold of straight tube main part, and at least one Socket joint oral area mold of the group for being molded socket joint oral area part.
Embodiment 4
In conjunction with shown in Fig. 7 and Fig. 9 to Figure 11, the present embodiment and embodiment 3 difference lies in：By two of embodiment 3 Plug is changed to a plug assembly 623, and the plug assembly includes the fixed plate 6231 being fixedly connected with connecting rod, is connected to solid The guide rod 6232 being coaxially disposed on fixed board and with connecting rod, is fixedly mounted on the electromagnet 6233 of fixed plate and guide rod homonymy, slides Pressing steel plate 6234 on guide rod, and the annular rubber ring 6230 between fixed plate and pressing steel plate；Institute The end for stating guide rod is fixedly connected with two nuts for preventing pressing steel plate to be detached from；The annular rubber ring is hollow structure, Or surface layer is heat resistant rubber material, inside is foamed plastic；The locating ring of annular, positioning are connected on the inside of the pressing steel plate Circle is located at the periphery of locating ring positioned at the periphery of electromagnet, the annular rubber ring.Inspection is installed on the vertical forming device The sensor for surveying socket joint oral area die location, when socket joint oral area mold passes through plug assembly position, electromagnet energization is sucked crowded Laminated steel, annular rubber ring are squeezed generation deformation, and outer diameter becomes larger, suitable with the internal diameter of socket joint oral area part, compare in this way The annular rubber ring of embodiment 3, the present embodiment can be in direct contact with socket joint oral area internal partial wall, ensure the shape of bell and spigot inner wall Shape, dimensional accuracy.

Claims (7)

1. a kind of PVC plastic pipe external member, it is characterised in that：Include straight tube and connecting tube, described straight tube one end forms socket joint Mouthful, the internal diameter of bell and spigot is equal with the outer diameter of straight tube；
The connecting tube includes the socket end of integrally connected, bending part and female end successively；Outer diameter, the bellmouth of the socket end The internal diameter at end is equal with straight tube outer diameter；
Angle of the connecting tube in the initial state between socket end, the axial direction of female end is 90 °；
The bending part includes interior pipe portion and the outer tube part outside interior pipe portion；The socket end of the connecting tube, interior pipe portion With female end by conventional PVC material integrated injection molding；
There are one the outer tube part is embedded respectively by conductive PVC material integrated injection molding, and in the outer tube part end positions Electrode retaining collar is connected with the electrode exposed outside outer tube part on two electrode retaining collars；
It is arranged with a heat-shrink tube outside the bending part；A heat-resistant rubber hose, the heat-resisting rubber are inserted in the bending part Sebific duct is bellows structure, and support steel ring is equidistantly embedded with along its length in heat-resistant rubber hose；The two neighboring support The distance between steel ring is less than the 1/15 of socket end internal diameter；It is sequentially connected between each support steel ring by connecting steel disc Together, and heat-resistant rubber hose be inserted into connecting tube after so that connection steel disc is located at the inside of connecting tube bent angle position.
2. adjust connecting tube bending angle, it is inserted in faucet part using first metal bar, is inserted using second metal bar In socket；Connecting with the mains on two electrodes makes bending part fever softening, is then turned off power supply, and two metal bars are remote toward phase From direction bending so that bending part is deformed, until after proper angle using water spray way make connecting tube cooling harden again；
The first metal nose forms a bellmouth positioning region to match with faucet part internal diameter；First metal nose Also there are one the bellmouth oversheaths that internal diameter matches with faucet part outer diameter for molding；There are one sockets for molding on second metal bar Oversheath, size of the space just with the socket end between the socket oversheath and the second metal bar outer wall match.
3. a kind of PVC plastic pipe external member as described in claim 1, it is characterised in that：Conduction PVC material percentage by weight Include following components than meter：
PVC 60
Carbon black 15
Electrically conductive polyaniline 15
Polyethylene wax 2
Triphenyl phosphate 7
Magnesium stearate 1
Wherein, the grain size of carbon black is 0.2 μm
It is described conduction PVC material preparation method be：
1）PVC and polyethylene wax are put into kneading machine and are kneaded, is kneaded jointly until other components are added when viscous state is presented in PVC；
2）Upper step material is sent into extrusion granulator machine, extrusion obtains PVC material grains；
Then PVC material grains are sent into injection molding machine and are molded into the connecting tube.
4. a kind of PVC plastic pipe external member as described in claim 1, it is characterised in that：Between two neighboring straight tube and straight tube It is be bonded by bonding agent between connecting tube；The bonding agent includes following components by weight：
Dioxane 23
Methanol 12
Hexone 57
Dioctyl phthalate 3
Glacial acetic acid 2
Two acetone 3 of different two contracting.
5. a kind of PVC plastic pipe external member as described in claim 1, it is characterised in that：The straight tube is by a continuous pipe Cut-out and is formed, the pipe is in extrusion molding, the socket joint oral area every there are one the moldings of one section of setpoint distance, socket joint oral area by Cutting machine is cut off in centre position, forms the bell and spigot, partial cut of the pipe between two neighboring bell and spigot Form the straight tube described in two sections.
6. a kind of PVC plastic pipe external member as described in claim 1, it is characterised in that：The rubber pipe outer wall and connecting tube are curved The inner wall of folding part is bonded by glue.
7. a kind of former of PVC plastic pipe, described PVC plastic pipe one end has socket joint oral area, it is characterised in that：Including There are the extruder being sequentially arranged, machine head port mould, vertical forming device, Vacuum shaping spraying box, dragger, cutting machine and heap pipe Frame；The machine head port mould is connected to the discharge end of extruder；
The plug outer end of the machine head port mould is connected with connecting rod, and there are one plug assembly, the plugs for the other end connection of connecting rod Component includes the fixed plate being fixedly connected with connecting rod, the guide rod for being connected in fixed plate and being coaxially disposed with connecting rod, fixed peace Mounted in the electromagnet of fixed plate and guide rod homonymy, the pressing steel plate being slidably mounted on guide rod, and mounted on fixed plate and squeeze Annular rubber ring between laminated steel；
The vertical forming device includes about two groups horizontally disposed transmission chains, and between two groups of transmission chains Half die, the half die include multigroup straight tube mold for being molded straight tube main part, and at least one set of use In the socket joint oral area mold for being molded socket joint oral area part.
CN201711486638.0A 2017-12-29 2017-12-29 PVC plastic pipe external member and its former Pending CN108454142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711486638.0A CN108454142A (en) 2017-12-29 2017-12-29 PVC plastic pipe external member and its former

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711486638.0A CN108454142A (en) 2017-12-29 2017-12-29 PVC plastic pipe external member and its former

Publications (1)

Publication Number Publication Date
CN108454142A true CN108454142A (en) 2018-08-28

Family

ID=63221370

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711486638.0A Pending CN108454142A (en) 2017-12-29 2017-12-29 PVC plastic pipe external member and its former

Country Status (1)

Country Link
CN (1) CN108454142A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116877843A (en) * 2023-09-04 2023-10-13 鑫鹏源(聊城)智能科技有限公司 Corrugated pipe structure for improving axial strength of corrugated pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201884856U (en) * 2010-11-08 2011-06-29 广东联塑科技实业有限公司 Plastic bridge elbow fitting
CN102313110A (en) * 2011-10-08 2012-01-11 韩洪军 Fully concealed combined hydrant and fast joint in matched use
CN205350679U (en) * 2015-12-23 2016-06-29 浙江省新昌县华佳国财塑胶有限公司 PVC coupling convenient to installation
CN105936122A (en) * 2015-01-31 2016-09-14 浙江六通塑胶有限公司 Rubber rod for secondary processing of plastic pipe and secondary processing process of plastic pipe
CN106633530A (en) * 2016-12-28 2017-05-10 李勇军 Conductive PVC colloidal particles and manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201884856U (en) * 2010-11-08 2011-06-29 广东联塑科技实业有限公司 Plastic bridge elbow fitting
CN102313110A (en) * 2011-10-08 2012-01-11 韩洪军 Fully concealed combined hydrant and fast joint in matched use
CN105936122A (en) * 2015-01-31 2016-09-14 浙江六通塑胶有限公司 Rubber rod for secondary processing of plastic pipe and secondary processing process of plastic pipe
CN205350679U (en) * 2015-12-23 2016-06-29 浙江省新昌县华佳国财塑胶有限公司 PVC coupling convenient to installation
CN106633530A (en) * 2016-12-28 2017-05-10 李勇军 Conductive PVC colloidal particles and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116877843A (en) * 2023-09-04 2023-10-13 鑫鹏源(聊城)智能科技有限公司 Corrugated pipe structure for improving axial strength of corrugated pipe
CN116877843B (en) * 2023-09-04 2023-12-08 鑫鹏源(聊城)智能科技有限公司 Corrugated pipe structure for improving axial strength of corrugated pipe

Similar Documents

Publication Publication Date Title
CN103899853B (en) A kind of complex copper moulds feedwater piping linkage structure and link thereof
CN103786324A (en) Process for producing double-wall corrugated pipe
CN108454142A (en) PVC plastic pipe external member and its former
CN103883805A (en) HDPE helical bellows and manufacturing method
CN108343795A (en) A kind of PVC plastic pipe external member and its former
CN103144271A (en) Exit molding device for plastic extruder
CN108278436A (en) A kind of PVC plastic pipe external member
CN108343797A (en) A kind of draining PVC plastic pipe external member
CN205781456U (en) A kind of PVC M double-wall corrugated pipe of online enlarging
CN108317326A (en) PVC plastic pipe external member
CN114474643A (en) Production equipment and process of ultrathin high-polymer pipe
CN204658901U (en) A kind of plastics extrusion die
CN205781548U (en) A kind of high-tensile steel wires skeleton pipe
CN208855035U (en) A kind of online double-wall bellow flare device
CN105351660B (en) A kind of style plastic pipe connector for being provided with heating ring and preparation method thereof
CN204172305U (en) Mould muscle extrusion device
CN103836288A (en) Hot melt pipe joint part and production process thereof
CN108859054B (en) HDPE farmland irrigation pipe preparation method, HDPE farmland irrigation pipe and manufacturing device
CN211404162U (en) Heating device for producing electric wires and cables
CN207465868U (en) A kind of thermoplastic tube end hemmer
CN206186316U (en) Extrusion moulding pipe die utensil
CN206855963U (en) It is classified the cable extruding machine head of guide
CN216100286U (en) Polyvinyl chloride pipe forming equipment
CN205735827U (en) Multi-pipe-diameter joint injection mold
CN103568253A (en) Plastic extrusion mold

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180828