CN203937083U - A kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated - Google Patents
A kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated Download PDFInfo
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- CN203937083U CN203937083U CN201420353271.0U CN201420353271U CN203937083U CN 203937083 U CN203937083 U CN 203937083U CN 201420353271 U CN201420353271 U CN 201420353271U CN 203937083 U CN203937083 U CN 203937083U
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- 229920003023 plastic Polymers 0.000 title claims abstract description 68
- 239000004033 plastic Substances 0.000 title claims abstract description 68
- 229920000728 polyester Polymers 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims abstract description 17
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- 230000000903 blocking effect Effects 0.000 abstract description 7
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- 238000001175 rotational moulding Methods 0.000 description 13
- 239000004698 Polyethylene Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 10
- 229920000573 polyethylene Polymers 0.000 description 10
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- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000007514 turning Methods 0.000 description 3
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- 230000010358 mechanical oscillation Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
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Abstract
The utility model discloses a kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated, comprise the heat-resisting shrouding of polyester that is fixed with steel packing ring, described steel packing ring two sides band alignment pin, the described alignment pin of one side docks with the heat-resisting shrouding of described polyester with holes, and the described alignment pin of one side is for docking with the flange for the treatment of plastic-coated pipe; The heat-resisting shrouding arranged outside of described polyester handle, in addition, the marginating compartment of the heat-resisting shrouding of described polyester is fixed with F type quick-speed jigs.The beneficial effects of the utility model are, can realize fast the instrument of the quick blocking for the treatment of outer other opening ends of plastic-coated pipe fitting bushing powder mouth, can be widely used in the quick blocking of the pipe fitting mouth of pipe.
Description
Technical field
The present invention relates to a kind of plugging device of the pipe fitting mouth of pipe.
Background technology
Pipe fitting rotational molding technique, be powder filling that plastic-coated is used in high temperature pipe fitting to be processed, by upset pipe fitting, make powder evenly be cured to pipe fitting inner wall, in a kind of technique of pipe fitting inner wall plastic-coated, be particularly useful for arranging the pipe fitting inner wall plastic-coated of arm.
For pipe fitting rotational molding technique, it is very important racing against time, and reason is: high-temperature pipe fitting dispels the heat rapidly, spended time before plastic-coated, causes pipe fitting shortage of heat, affects follow-up rotational moulding quality, or prior art mode, the temperature of heating of raising pipe fitting, causes the increase of processing cost.
At this point, there are the following problems for prior art:
1, the powder case of prior art adopts the mode that separates, moves into place as required rear positioning and clamping, powder filling.The movement of powder case needs spended time, and the interface contraposition of powder case and high-temperature pipe fitting needs spended time.
2, the shutoff of other opening ends of pipe fitting to be processed, shutoff end cap relies on bolt or the shutoff successively of C type card, expends time in.
3, the powder case valve port of prior art, in use, opens rapidly, causes powder falling too rapid, and powder weight is large, produces the problems such as noise, mechanical oscillation.
4, prior art rotation mould invariablenes turning speed, counterweight is fixed, in the time of processing different size pipe fitting, its safety operation unstable properties, the crudy level of large tubule differs.
The mode that realizes the docking of the pipe fitting mouth of pipe in prior art is more, and the interface module that preferably those efficiency are high uses.The invention provides a kind of optimal way is: described interface module comprises that an eclipsed form cover die and one group are for treating that plastic-coated pipe fitting nozzle flange is connected in the clamp mechanism of described eclipsed form cover die.Wherein, centered by described eclipsed form cover die, offer plastic-coated powder by the plate-like mould of mouth, the described ring-shaped step that by mouth, one side of reception plastics coated tube part is arranged with one heart countersunk head formula.Thereby, the corresponding different specification size of the internal diameter of ring-shaped step treat plastic-coated pipe fitting, facilitate the location of pipe fitting, reach the efficient requirement of express delivery.And cover touches applicable to the pipe fitting of multiple internal diameter specifications and use, expand the scope of application.And described clamp mechanism comprises and is positioned at the hydraulic cylinder type clamp mechanism for the treatment of that plastic-coated pipe fitting mouth of pipe both sides arrange respectively, each hydraulic cylinder type clamp mechanism comprise outside stiff end with turning cylinder hinged with equipment support body on clamping hydraulic cylinder, the motion end of described hydraulic cylinder is a hinged chuck part, the other end of described chuck part is provided with the briquetting for the treatment of plastic-coated pipe fitting nozzle flange for crimping in replaceable mode; Described chuck part is also provided with a fixed hinge that described hydraulic cylinder motion end pin joint and described briquetting pitch of the laps are rotated.The specification of briquetting is according to treating that the specification of plastic-coated pipe fitting chooses, and upset changes on chuck part and uses.
Described counterweight element is included in the slideway that described rotating mould disc radial arranges, on described slideway, sit and have slide block, described slide block is also equipped with screw thread, and is rotatably connected on leading screw, described leading screw one end has connected by dynamic bevel gear, the described drive bevel gear that has connected drive end that is combined with by dynamic bevel gear; Described slide block independence is as counterweight or connect other balancing weights uses.
Treat other interfaces outside plastic-coated pipe fitting bushing powder mouth, by fast cap shutoff, described fast cap comprises the heat-resisting shrouding of polyester (glass fibre+PA66) that steel packing ring is set, described steel packing ring two sides band alignment pin, one side is docked with pipe flange, one side is docked with polyester sheet with holes, and the outer face of described polyester sheet is fixed with handle, and circumferentially outer rim is arranged at intervals with F type quick-speed jigs (the dynamo-electric HS-80379 of Dongguan good hand).
According to foregoing description, based on the process of speed pipe inwall rotomoulding apparatus, comprise the steps:
S1, make powder case be positioned at extreme lower position, and valve-off; Select eclipsed form cover die according to the specification for the treatment of plastic-coated pipe, and be installed to powder case valve one side; Regulate counterweight element according to the specification for the treatment of plastic-coated pipe;
S2, be heated to be intended for plastic-coated until plastic-coated pipe temperature after, by handling, the mouth of pipe for the treatment of plastic-coated pipe is docked with described eclipsed form cover die, and clamps by clamp mechanism; Optionally auxiliary clamping device is arranged on the auxiliary cover die that compresses on platform by mode by hand.
S3, utilization rotation mould regulate the position for the treatment of plastic-coated pipe, and manual type is installed fast caps at other openends for the treatment of plastic-coated pipe;
S4, rotation mould, make directly over the rotation extremely of powder case, and Open valve fills poly-plastic-coated powder in pipe, then closes for powder valve;
S5, make to rotate mould Double-directional rotary, make powder flow and evenly melt and be attached on tube wall and flange water-line face at tube wall;
S6, rotation mould make powder case rotation under, Open valve, does not melt remaining powder and returns valve-off after powder case;
S7, make to rotate mould Double-directional rotary, make coating evenly be melted in inside pipe wall;
S8, plastic-coated are complete, take off the fast cap in S3 by manual type; Decontrol the clamp mechanism in s2, pipe is moved to cooling finishing district with crane and carry out water-cooled curing molding.
For required processing pipe fitting, on console electronic operation screen, weave after operation sequence, above-mentioned S4, S5, S6, S7 step have been controlled automatically by electronics console.
The beneficial effect of plastic-coated equipment is:
1, powder case (powder filling unit) is directly placed in to a side of rotation mould, powder case together with pipe fitting in rotating mould disc spins, change the mode that prior art powder case need to move and locate, save the time, reduce the heat radiation time of high-temperature pipe fitting before rotational moulding, thereby greatly reduce costs, enhance productivity.
2, powder case arranges the valve port of venetian blind type, has solved prior art powder case powder falling speed fast, and weight is large, the problem that noise is large.
3, powder case selects eclipsed form cover die to coordinate with hydraulic clamping mechanism, fast accurate fixedly treat plastic-coated pipe fitting, eclipsed form cover die makes present device under a machining state, be applicable to the multiple processing for the treatment of plastic-coated pipe fitting, expand range of application, and the contraposition of pipe fitting and powder case interface rapidly, conveniently, saves time.And hydraulic clamping mechanism can be docked to pipe fitting flange powder case interface fast, further save time.
4, treat plastic-coated pipe fitting except with powder case docking port other mouths of pipe, for artificial quick blocking, select quick-speed jigs by steel packing ring and the light shutoff of polyester shrouding to pipe fitting mouth, and adopt alignment pin location, further reduce the heat radiation time before pipe fitting plastic-coated.
5, balance weight mechanism drives leading screw by Bevel Gear Transmission, and then regulates the position of balancing weight, reaches the object of quick adjustment counterweight.And balance weight mechanism arranges use mainly for the powder case rotating with rotation mould, guarantees to rotate mould smooth rotation, reaches the object of counterweigh.
To sum up, equipment have safe and efficient, automaticity is high, the feature of simple operation, constant product quality.
Beneficial effect of the present invention is, can realize fast the instrument of the quick blocking for the treatment of outer other opening ends of plastic-coated pipe fitting bushing powder mouth, can be widely used in the quick blocking of the pipe fitting mouth of pipe.
Summary of the invention
For the problems referred to above, the invention provides a kind of instrument that can realize fast the quick blocking for the treatment of outer other opening ends of plastic-coated pipe fitting bushing powder mouth, can be widely used in the quick blocking of the pipe fitting mouth of pipe.
In order to achieve the above object, a kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated of the present invention, comprise the heat-resisting shrouding of polyester that is fixed with steel packing ring, described steel packing ring two sides band alignment pin, the described alignment pin of one side docks with the heat-resisting shrouding of described polyester with holes, and the described alignment pin of one side is for docking with the flange for the treatment of plastic-coated pipe; The heat-resisting shrouding arranged outside of described polyester handle, in addition, the marginating compartment of the heat-resisting shrouding of described polyester is fixed with F type quick-speed jigs.
The present invention is particularly useful for supporting the use of pipe fitting inner wall plastic-coated rotomoulding apparatus.Wherein, pipe fitting inner wall plastic-coated rotomoulding apparatus, comprises the vertical circular rotating mould dish being rotated by drive unit drives, in the vertical card of described rotation mould, arranges and needs plastics coated tube part clamp mechanism (for pipe fitting is fixed to card).Improvement of the present invention is, a side of described rotation mould is fixed with powder filling unit, and the opposite side of the relatively described powder filling of described rotation mould unit is provided with counterweight element.Described powder filling unit comprises the powder case that powder filling port is set towards described rotation mould inner side, and the powder filling port of described powder case is provided with valve, and the opposite side of described valve is provided with for the interface module to the reception plastics coated tube part mouth of pipe.
Under optimal way, described valve comprises the blade of louver window formula valve page being arranged side by side, described in each, the both sides of valve page are articulated with respectively in valve frame, described in each, valve page central rotating shaft is articulated with on same fork by blinds pin, one end of described fork is connected in the stretching boom end of valve hydraulic pressure cylinder assembly in hinged way, and described valve hydraulic pressure cylinder assembly comprises hydraulic pressure supply and controlling organization.Described valve also comprises that inner side is arranged at the position block at blinds pin range place.
Brief description of the drawings
Fig. 1 is the structural representation of pipe rotational molding technique equipment.
Fig. 2 is the side-looking structural representation of equipping shown in Fig. 1.
Fig. 3 is the structural representation that the present invention equips driver element.
Fig. 4 is the perspective view of driver element shown in Fig. 2.
Fig. 5 is the perspective view of rotation mould and counterweight element.
Fig. 6 is the front view of structure shown in Fig. 5.
Fig. 7 is the governor motion schematic diagram of counterweight element.
Fig. 8 is the syndeton schematic diagram between governor motion and balancing weight in counterweight element.
Fig. 9 is P place structure for amplifying schematic diagram in Fig. 8.
Figure 10 is the perspective view of chuck part in clamp mechanism.
Figure 11 is the perspective view of clamp mechanism.
Figure 12 is the plan structure schematic diagram of clamp mechanism.
Figure 13 is the perspective view of powder case valve.
Figure 14 is the side-looking structural representation of powder case valve.
Figure 15 is the perspective view of eclipsed form cover die.
Figure 16 is the side-looking structural representation of eclipsed form cover die.
Figure 17 is fast cap plan structure schematic diagram of the present invention.
Figure 18 is the side-looking structural representation of fast cap of the present invention.
Figure 19 is the structural representation of steel ring in fast cap of the present invention.
Figure 20 is the side-looking structural representation of steel ring structure shown in Figure 19.
Detailed description of the invention
Pipe rotational molding technique equipment, composition comprises transmission mechanism, rotating disc, counterweight guiding mechanism, pipe mounting platform, hydraulic locking tube device, powder box, hydraulic powder feedway, mould etc.Specifically, as shown in Figure 1, pipe fitting inner wall plastic-coated rotomoulding apparatus of the present invention, comprises the vertical circular rotating mould dish 1 being rotated by drive unit drives, in the vertical card of rotation mould 1, arranges and needs plastics coated tube part clamp mechanism.Clamp mechanism, for pipe fitting is fixed to card, comprises the Hydraulic Clamping Mechanism of hereinafter mentioning, and other auxiliary bodies etc.One side of rotation mould 1 is fixed with powder filling unit, and the opposite side of the relatively described powder filling of described rotation mould 1 unit is provided with counterweight element 6.
Rotation mould 1 driver element (transmission system) is mainly made up of buncher 71 and gear-bearing structure, transmission system is shown in Fig. 2～4, driven by motor driver pinion 72 rotates, pinion 72 engages with passive gear wheel 73, gear wheel 73 drives main shaft 74 to rotate, and main shaft leading portion arranges the pedestal 75 that connects rotation mould 1.Under optimal way, the maximum rotating weight of transmission device (pipe fitting adds powder filler weight in pipe) is 1T, and 10 revs/min of maximum rotative speeds, set rotary speed, stepless smoothly adjustable-speed within the scope of adjustable-speed according to pipe specification.Motor possesses the pipe of making, and periodically back and forth forward, reversion, optional position stop, meeting an urgent need stops controlling function; Can set rotational time parameter according to pipe specification, after the arrival stipulated time, equipment can stop at suitable optional position automatically simultaneously.
In Fig. 1, powder filling unit comprises the powder case 4 that powder filling port is set towards described rotation mould 1 inner side, and the powder filling port of powder case 4 is provided with valve 3, and the opposite side of valve 3 is provided with for the interface module to the reception plastics coated tube part mouth of pipe.
Wherein, powder case 4 mainly comprises casing, cleaning and access hole, powder observation mouth.Under optimal way, powder box body bosom has baffle arrangement, avoid device in rotary course in powder case powder back and forth flow, powder observation mouth adopts the combining glass structure interior powder quantity of clear view powder case at any time, to supplement in time powder, can clear up easily and keep in repair by cleaning and access hole.Arranging of powder case needs satisfied requirement to be: be convenient to powder quantitative observation and supplement in time, guaranteeing that powder case can thoroughly be cleared up and overhaul simultaneously.
As shown in Figure 13～14, the valve of powder filling unit comprises the blade of louver window formula valve page 91 being arranged side by side, described in each, the both sides of valve page 91 are articulated with respectively in valve frame, described in each, valve page 91 central rotating shafts are articulated with on same fork 94 by blinds pin 99, one end of described fork 94 is connected in the stretching boom end of valve hydraulic pressure cylinder assembly 96 in hinged way, and described valve hydraulic pressure cylinder assembly comprises hydraulic pressure supply and controlling organization.Described valve also comprises that inner side is arranged at the position block 95 at blinds pin 99 range places.In figure, rocking bar 93 refers to hinge, plays hinged effect between valve page central shaft and fork.The valve of powder filling unit also can be selected other involute valves.
Foregoing description is known, and valve mainly comprises valve body, rocking bar, fork, position block, valve disc, valve oil cylinder etc.Using method: control switching control pilot door mechanism in employing, drive rocking bar to open and close valve blinds by hydraulic jack push-and-pull fork, inject gently powder or reclaim powder in powder box in pipe.Valve utilizes hydraulic selector control, safe and reliable, can open and close flexibly blinds, realizes powder injection and recovery function automatically.
And the interface module that valve is attached thereto comprises that an eclipsed form cover die 5 and one group are for treating that plastic-coated pipe fitting nozzle flange is connected in the clamp mechanism 2 of described eclipsed form cover die.In order to ensure the clamping for the treatment of plastic-coated pipe fitting, can increase the auxiliary clamping device being pressed on cover die, select the dynamo-electric HS-11421-SS type of Dongguan good hand chuck apparatus etc.
As shown in Figure 15～16, centered by described eclipsed form cover die 5, offer plastic-coated powder by the plate-like mould of mouth 21, a described side by 21 pairs of reception plastics coated tube parts of mouth arranges the ring-shaped step of countersunk head formula with one heart.Thereby, the corresponding different specification size of the internal diameter of ring-shaped step treat plastic-coated pipe fitting, facilitate the location of pipe fitting, reach the efficient requirement of express delivery.And cover touches applicable to the pipe fitting of multiple internal diameter specifications and use, expand the scope of application.
In figure, eclipsed form cover die mainly comprises interfix supporting plate (being mainly used in the location and installation of different size pipe), installing plate (being mainly used in the installation of mould on platform), reinforcement 25.Using method: choose corresponding mould according to pipe specification, mould is arranged on rotary platform device with artificial or crane mode, subsequently the pipe heating is placed in mould locating hole by crane, opens hydraulic clamp switch locking and be arranged on the pipe on platform.Every group of eclipsed form mould can be used for the processing of 2-3 kind specification pipe, need not be frequently mold exchange more, every kind of eclipsed form mould can be processed the pipe of two to three kinds of different flange specifications, reduces and changes and time of installation mold, reduce pipe heat energy loss, enhance productivity.
As shown in Figure 10～12, clamp mechanism 2 comprises and is positioned at the hydraulic cylinder type clamp mechanism for the treatment of that plastic-coated pipe fitting mouth of pipe both sides arrange respectively, each hydraulic cylinder type clamp mechanism comprise outside stiff end with turning cylinder 88 hinged with equipment support body on clamping hydraulic cylinder 81, the motion end of described hydraulic cylinder 81 is a hinged chuck part 83, the other end of described chuck part compresses with upset and replaceable mode is provided with the briquetting 84 for the treatment of plastic-coated pipe fitting nozzle flange for crimping; Described chuck part is also provided with a fixed hinge 82 that described hydraulic cylinder 81 motion end pin joints and described briquetting pitch of the laps are rotated.The specification of briquetting 84 is according to treating that the specification of plastic-coated pipe fitting chooses, and upset changes on chuck part 83 and uses.
Comprise the core component of assembly the present invention equipment of above-mentioned clamp mechanism, mainly contain platform, clamp mechanism (supporting plate, chuck, briquetting, oil cylinder etc.) composition, supporting plate moves and adopts twin-stage oil cylinder to be arranged on platform structure below (reducing platform and integrally size), and briquetting has turn over function.Using method: set in advance briquetting according to pipe flange specification, and on platform, install eclipsed form mould, after being placed on stage apparatus, pipe make chuck rapid horizontal withstand outer tube surface by the supporting plate Shift cylinder at two ends, control clamping cylinder makes briquetting be pressed on tube outer wall and flange junction downwards simultaneously fast, after plastic-coated finishes, unclamp briquetting and chuck, clamp mechanism resets.
Clamp mechanism can arrange remote control gauge tap, and handiness is quick, can the fixing pipe that heated in the short time.During with the pipe of two kinds of different size flanges of same mould plastic-coated, regulate upset briquetting to realize and compress pipe function, easy to operate enhancing productivity.
In addition, under optimal way, on circular rotating mould, be provided with moveable counter weight slide block, press at any time scale according to pipe specification and adjust balancing weight position, while rotating various pipe to guarantee to be equipped in, obtain good stability.Specifically referring to shown in Fig. 5～9, counterweight element 6 is included in the slideway 61 that described rotation mould 1 radially arranges, on described slideway 61, sit and have slide block 62, described slide block is also equipped with screw thread, and be rotatably connected on leading screw 65, described leading screw one end has connected by dynamic bevel gear 66, the described drive bevel gear that has connected drive end that is combined with by dynamic bevel gear 66; Described slide block independence is as counterweight or connect other balancing weights uses, that is to say, described balancing weight can be multiple, and balancing weight 67 and 68 is connected to the upper and lower surface of slide block 62 as shown in Figure 8, and slide block 62 itself also can be used as a balancing weight and uses.Weight slide block using method: establishment pipe sizing and the counterweight scale table of comparisons, according to the corresponding scale of adjusting on counterweight label of pipe to be processed, specification and length depending on pipe determine whether to carry out counterweight adjustment, adjust as needed, with ratchet spanner operation realization (regulating mobile counterweight slide position by bevel gear and adjusting screw(rod) transmission), pointer represents to adjust complete while arriving corresponding scale label value.
By portable counterweight element is set, improve the processing safety of equipment rotation, can enlarged pipe processing dimension scope, while making this be equipped in processing different specification size pipe, can keep the steadily of centre of gravity in centrifugal rotation process.
In the use procedure of present device, also use fast cap, treat other interfaces outside plastic-coated pipe fitting bushing powder mouth for shutoff.As shown in Figure 17～20, fast cap comprises the heat-resisting shrouding 40 of polyester (glass fibre+PA66) that steel packing ring 44 is set, steel packing ring two sides band alignment pin 43, one side is docked with pipe flange, one side is docked with polyester sheet with holes, the outer face of described polyester sheet is fixed with handle 41, and circumferentially outer rim is arranged at intervals with F type quick-speed jigs 42 (being preferably the dynamo-electric HS-80379 of Dongguan good hand)
Capping is the structural design that polyester blind plate adds steel packing ring, for sealing the shutoff frock of pipe end face of flange.(noticing that steel packing ring will make flange water-line face reserve space more than 3mm after installation, to make polyethylene powders can fully adhere to flange water-line face)
The using method of fast cap: select corresponding capping according to pipe specification, capping is quick installed on companion flange face (while use first with F type quick-speed jigs, capping and packing ring are correctly placed on flange face by alignment pin, and clamp quick-speed jigs, adjust bolt degree of tightness, make clamp power moderate, fastening nut), after having constructed, unclamp quick-speed jigs, take off in order capping and packing ring.
The advantage of fast cap: capping and fixture are structure as a whole, polyester material is selected in capping, lightweight construction and high temperature resistant, manual operation is convenient and swift, can be in extremely short time inner sealing tube interior space, carry out lower road rotational moulding operation with prestissimo, reduce heat energy loss, guarantee polyethylene coated steel pipe quality.
To sum up, fast cap comprises the heat-resisting shrouding of polyester that is fixed with steel packing ring, described steel packing ring two sides band alignment pin, and one side is docked with the heat-resisting shrouding of described polyester with holes, and one side is for docking with the flange for the treatment of plastic-coated pipe.The heat-resisting shrouding arranged outside of described polyester handle, in addition, the marginating compartment of the heat-resisting shrouding of described polyester is fixed with F type quick-speed jigs.
According to the description of the said equipment, the present invention also provides a kind of process based on the said equipment, comprises the steps
S1, make powder case be positioned at extreme lower position, and valve-off; Select eclipsed form cover die according to the specification for the treatment of plastic-coated pipe, and be installed to powder case valve one side; Regulate counterweight element according to the specification for the treatment of plastic-coated pipe;
S2, be heated to be intended for plastic-coated until plastic-coated pipe temperature after, by handling, the mouth of pipe for the treatment of plastic-coated pipe is docked with described eclipsed form cover die, and clamps by clamp mechanism; Optionally auxiliary clamping device is arranged on the auxiliary cover die that compresses on platform by mode by hand.
S3, utilization rotation mould regulate the position for the treatment of plastic-coated pipe, and manual type is installed fast caps at other openends for the treatment of plastic-coated pipe;
S4, rotation mould, make directly over the rotation extremely of powder case, and Open valve fills poly-plastic-coated powder in pipe, then closes for powder valve;
S5, make to rotate mould Double-directional rotary, make powder flow and evenly melt and be attached on tube wall and flange water-line face at tube wall;
S6, rotation mould make powder case rotation under, Open valve, does not melt remaining powder and returns valve-off after powder case;
S7, make to rotate mould Double-directional rotary, make coating evenly be melted in inside pipe wall;
S8, plastic-coated are complete, take off the fast cap in S3 by manual type; Decontrol the clamp mechanism in s2, pipe is moved to cooling finishing district with crane and carry out water-cooled curing molding.
For required processing pipe fitting, on console electronic operation screen, weave after operation sequence, above-mentioned S4, S5, S6, S7 step have been controlled automatically by electronics console.
By heating in gas-fired heater, the one end for the treatment of plastic-coated pipe supervisor after (preset temperature interval is 280 DEG C-330 DEG C) is placed on the stage apparatus of supporting flange cover die (stage apparatus bottom be connected for powder case) in the present invention, by the pipe that is locked of the Hydraulic Clamping Mechanism on stage apparatus, axially rotate along center of turntable by buncher transmission mechanism driven rotary dish and attached platform structure, then the pipe rotation on platform is stopped to correct position, at the pipe other end and attached arm end face of flange, special-purpose assorted capping is installed by manual type, make subsequently for directly over the rotation extremely of powder case, now open for powder valve and fill selected polyethylene powders in pipe, then close for powder valve, whirligig makes periodically back and forth vertical direction rotation of pipe by setup parameter, make powder flow and evenly be attached on tube wall and flange water-line face at tube wall, reach after polyethylene coating technological requirement and equip and stop the rotation at correct position, then opening for powder valve all falls to powder box remaining powder naturally after rise, now close for powder valve, equipment carries out timing rotation again, reach and take off capping by manual type after designated parameter and unclamp hydraulic locking apparatus, pipe is moved to cooling finishing district with crane and carry out water-cooled curing molding.
This technological equipment has taken into full account that tube temperature changes the issuable the most directly impact of polyethylene coating quality, whole design idea is to make each equipment operation link carry out the polyethylene powders application of tube wall in the quick mode the most safely and efficiently of most convenient, to promote as much as possible the quality of polyethylene coated steel pipe.
According to foregoing description, the operational sequence of pipe rotational molding technique equipment of the present invention can be concluded by following form:
Pipe rotational molding technique equipment operation system of the present invention, mainly comprises operating console (console), transmission system, mould and balance weight mechanism, platform and clamp mechanism, supplies powder valve mechanism, powder case, cover die, capping etc.Operating console function comprises forward, reversion, speed governing, stops, suddenly stopping, for operating keys such as powder, on console, touch display screen can setting program control operation, operating console adopts fixed, is located at and is convenient to manually-operated position.
In addition, the present invention applies use material, is preferably ldpe resin powder, and with the research and development progress of new material, also can select other applicable process equipments of the present invention and method is the plastic-coated powder of use as required.At this, specifically openly the present invention is the polyethylene resin powder characteristic of use:
| Project name | Unit | Index |
| Density | Kg/m 3 | More than 915 |
| Hot strength | N/mm 2 | More than 11.8 |
| Tension being damaged deformation rate | ％ | More than 300 |
| Hardness | HDD | More than 40 |
| Vicat softening temperature | ℃ | More than 85 |
| Environmental stress resistance be full of cracks | H | More than 1000 |
?
| Impact resistance | — | Can not there is pin hole |
Polyethylene plastics coated tube production process and control require:
Coating Interventions Requested and requirement
In addition, it should be noted that, the polyethylene pipe that different polyethylene powders raw materials is produced can be variant on physical and chemical index.
The above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (1)
1. the mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated, it is characterized in that, comprise the heat-resisting shrouding of polyester that is fixed with steel packing ring, described steel packing ring two sides band alignment pin, the described alignment pin of one side docks with the locating hole of the heat-resisting shrouding of described polyester, and the described alignment pin of one side is for docking with the flange for the treatment of plastic-coated pipe; The heat-resisting shrouding arranged outside of described polyester handle,
In addition, the marginating compartment of the heat-resisting shrouding of described polyester is fixed with F type quick-speed jigs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353271.0U CN203937083U (en) | 2014-06-27 | 2014-06-27 | A kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353271.0U CN203937083U (en) | 2014-06-27 | 2014-06-27 | A kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated |
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| Publication Number | Publication Date |
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| CN203937083U true CN203937083U (en) | 2014-11-12 |
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|---|---|---|---|
| CN201420353271.0U Expired - Lifetime CN203937083U (en) | 2014-06-27 | 2014-06-27 | A kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated |
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| CN (1) | CN203937083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866369A (en) * | 2019-01-07 | 2019-06-11 | 常州市博宏运动用品有限公司 | Integrated yoga hemisphere and preparation mold and method thereof |
-
2014
- 2014-06-27 CN CN201420353271.0U patent/CN203937083U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866369A (en) * | 2019-01-07 | 2019-06-11 | 常州市博宏运动用品有限公司 | Integrated yoga hemisphere and preparation mold and method thereof |
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