CN105014942A - PVC-O (oriented polyvinyl chloride) pipe radial magnetic suction induction stretching device and processing method thereof - Google Patents
PVC-O (oriented polyvinyl chloride) pipe radial magnetic suction induction stretching device and processing method thereof Download PDFInfo
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- CN105014942A CN105014942A CN201510554278.8A CN201510554278A CN105014942A CN 105014942 A CN105014942 A CN 105014942A CN 201510554278 A CN201510554278 A CN 201510554278A CN 105014942 A CN105014942 A CN 105014942A
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Abstract
The invention discloses a PVC-O (oriented polyvinyl chloride) pipe radial magnetic suction induction stretching device and a processing method thereof and belongs to the field of PVC-O pipe processing equipment. The device is characterized by comprising a processing cylinder (6) for heating a PVC-O pipe (13) through an electrical heating device, an expanding mechanism (5) and a pressing mechanism (6), wherein the expanding mechanism (5) comprises a rotary expanding mechanism and a magnetic suction mechanism, the rotary expanding mechanism is axially mounted in the processing cylinder, and the magnetic suction mechanism is fixedly mounted on an outer ring of the processing cylinder (6) and can have an electromagnetic suction function on an outer ring of the rotary expanding mechanism and control radial movement of the rotary expanding mechanism; the inner end of the pressing mechanism (6) penetrates through the processing cylinder and is close to the expanding mechanism (5) to radially position the PVC-O pipe (13). The mode of mutual matching of a movable iron expanding block and the magnetic suction mechanism, synchronous rotation can be realized while radial stretching of the pipe is realized through linear movement of the movable iron expanding block and the uniformity and the use strength of the stretched and formed pipe are remarkably improved.
Description
Technical field
The radial magnetic induction stretching device of a kind of PVC-O tubing and processing method thereof, belong to PVC-O tubular object extruding apparatus field.
Background technology
Biaxially orienting polyvinyl chloride (PVC-O) is the up-to-date evolutional form of pvc pipe, by the tubing that special orientation processing technology manufactures, generally that the PVC-U tubing adopting extrusion method to produce carries out axial tension and radial drawing, make PVC long-chain molecule in tubing in biaxially regular arrangement, obtain the novel PVC tubing of high strength, high tenacity, high-impact, antifatigue, performance is much better than common PVC-U tubing, research and development PVC-O tubing, can be saved material resource greatly, reduce costs, enhance product performance, there is obvious economic benefit and social benefit.
PVC belongs to the unformed plastics of non-crystalline type, and because the chlorine in molecule has larger polarity, therefore in rigidity, vitrification point is higher, does not have clear and definite fusing point.The tubing of this performance, compared with the polyolefin pipe of other crystal types, is comparatively suitable for carrying out biaxial stretch-formed orientation.PVC is easy to carry out uniaxial tension orientation in forming process, i.e. axial tension orientation, as long as the speed ratio that increase tubing draws and extrudes can realize this orientation.But the performance of this axial tension orientation to tubing is skimble-skamble, because although it adds the intensity of tubing orientation by stretch orientation, but reduce the intensity of tubing radial direction (i.e. hoop), this is for plastic pipe, especially water-feeding pipes, extremely harmful because it can reduce the hydraulic pressure burst strength of tubing greatly, this be also in the quality standard of tubing will the longitudinal welds of regulation tubing must be less than or equal to 5% reason.Desirable stretch orientation should be two-way, i.e. biaxial stretch-formed orientation, by biaxial stretch-formed orientation, has both added the axial strength of tubing, too increases radial direction (i.e. hoop) intensity of tubing simultaneously.That is, by biaxial stretch-formed orientation, improve the overall performance of tubing.Greatly increasing in pipe material intensity, on tubing original hydraulic pressure explosion rheobase plinth, by reducing the method conservation of wall thickness, reducing the cost of product.
Prior art, easily realize to the axial tension of PVC-O tubing, but there is certain technical problem in the realization of the stretching of radial (i.e. hoop), existing radial dilatation device is to the defect of the expansion of tubing due to self structure, the uniformity of tubing globally expanding can not be ensured, making the tubing after stretching, to there is wall unevenness even, and body such as to be easily out of shape at the problem, has had a strong impact on the working strength of tubing.
Summary of the invention
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provides a kind of and ensures that body expansion is even, the on-deformable PVC-O tubing that stretches radial magnetic induction stretching device.
The technical solution adopted for the present invention to solve the technical problems is: this PVC-O tubing radial magnetic induction stretching device, is characterized in that, comprising: base;
Processing cylinder, inwall is provided with electric heater unit, is laterally arranged on base, is heated by electric heater unit to PVC-O body;
Spreading mechanism, comprise rotary opening mechanism and magnetic attraction mechanism, rotary opening mechanism shaft is to being arranged in processing cylinder, rotary opening mechanism stretches out one end processing cylinder outside and is connected with revolving power mechanism, driven by revolving power mechanism and realize stretching to the radial rotary of PVC-O body, magnetic attraction mechanism is fixedly mounted on the outer ring of processing cylinder, with rotary opening mechanism outer ring, electromagnetism adhesive can occur;
Hold-down mechanism, is arranged on processing cylinder, inner through processing cylinder near spreading mechanism, to the radial location of PVC-O body;
PVC-O body inserts in processing cylinder, is sleeved between spreading mechanism and hold-down mechanism.
PVC-O body is sleeved between spreading mechanism and hold-down mechanism, power is provided by spreading mechanism, stretch out PVC-O body, realize the radial drawing of body, simultaneously, matched with spreading mechanism by the hold-down mechanism of arranged outside, PVC-O body is relatively fixing, stop it in the random movement of radial direction, force it to stretch uniformly according to the draw direction of spreading mechanism, expand, effectively ensure that the overall uniformity of body radial drawing, ensure the working strength of tubing.
Described spreading mechanism comprises rotary opening mechanism and magnetic attraction mechanism, rotary opening mechanism comprises central shaft and many groups irony of axially installing on center shaft rotates bracer group, often organize irony rotation bracer group and comprise the irony rotation bracer of multiple radial equipartition in central shaft outer ring, central shaft is fixed with multiple projection rotating bracer for installing irony, irony rotates inside bracer and is provided with and the groove convexing to form activity grafting;
Magnetic attraction mechanism, comprise strong electromagnet and electromagnet coil group, strong electromagnet is set with electromagnet coil group outward, and the outer ring of processing cylinder is fixedly mounted on by coil tube, magnetic attraction mechanism is provided with many groups, match with the position that irony rotates bracer group in installation site of each group, and at central shaft radial ringed uniform many groups.
Irony rotates bracer near central shaft under spring tension effect, and when central axis time, irony rotates bracer under centrifugal action, and away from central shaft, irony rotates PVC faced by bracer evagination and plays radial drawing effect; Simultaneously, magnetic attraction mechanism mainly booster action, when centrifugal force is not enough to make irony rotate bracer outward movment, electromagnet coil group is energized, magnetic attraction imports in processing cylinder by strong electromagnet, magnetic force rotates bracer to irony and produces suction, and strong electromagnet and electromagnet coil group are provided with many groups along processing cylinder circumference, and it is identical that many group coil winding directions are identical, many groups the direction of the winding current is identical, many groups coil produces magnetic force direction.
The side that processing cylinder end is stretched out in described central shaft one end is provided with revolving power mechanism, revolving power mechanism comprises motor and shaft coupling, motor is fixed on base one end by motor base, and motor output end connects by shaft coupling the end that central shaft stretches out processing cylinder.
Spreading mechanism adopts the structure of multiple meshed transmission gear, is transformed into the rectilinear movement rotating bracer, and then realizes the radial drawing of tubing, ensure that and the expansion precision that body stretches further improve the uniformity of drawing pipe by the rotation of gear.
Meshing gear arranges many groups, corresponding rotation bracer also arranges many groups of respective numbers, the application point arranged body is expanded of multiple rotation bracer increases as much as possible, simultaneously, rotate bracer also to rotate with central shaft, namely spreading mechanism is rotating expansion tubing by the rotation of self, more effectively ensure that the uniformity that body is expanded.
It is that inner hollow is arranged that described irony rotates bracer, and contacting outer face with PVC-O body abutment is smooth arcwall face.
Preferably, hold-down mechanism comprises spring, adhesive armature and adhesive pressing plate, adhesive pressing plate is compressed on PVC-O outer surface of tube body, is provided with the capping of outer sealed tube and outer sealed tube top easy disassembly outside adhesive armature, and adhesive armature bottom is inserted and processed in cylinder and install adhesive pressing plate in this end; Pull-in winding is set with between adhesive armature top and outer sealed tube, pocketed springs between bottom and outer sealed tube, outer sealed tube middle inside is provided with the boss of a circle mounting spring, and spring one end is fixed in outer sealed tube, and the other end is sleeved on after on adhesive armature and is fixedly connected with adhesive pressing plate.
Adhesive pressing plate with rotate bracer with the use of, body is controlled, at fixing Working position, effectively prevent arbitrarily moving radially of body, the impact that the mismachining tolerance avoiding this kind of movement to bring causes drawing pipe uniformity.
Described electric heater unit is be arranged on the electrical heating wire on the inwall of processing cylinder.
One end that described central shaft stretches out processing cylinder is fixed on the end processing cylinder by bearing, the other end is provided with the magnetic levitation adhesive mechanism preventing central shaft ends sag, and magnetic levitation adhesive mechanism comprises the adhesive electromagnet be arranged on outside processing cylinder and the suspension end cap being fixed on central shaft end.
Utilize a processing method for above-mentioned PVC-O tubing radial magnetic induction stretching device, it is characterized in that: comprise the following steps:
A, hold-down mechanism are energized, and float and depart from the contact with spreading mechanism, reserve the gap of tubular object extruding, PVC-O body to be processed is axially pushed from processing cylinder one end, be sleeved on spreading mechanism outer ring, hold-down mechanism power-off, then push down tubing by hold-down mechanism and prevent it from rotating;
B, by electric heater unit to the PVC-O body heating in processing cylinder, until body be in can the soft state of stretch process, continue heated at constant temperature;
C, startup revolving power mechanism, rotary opening mechanism rotates under the drive of revolving power mechanism in PVC-O body, give the energising of magnetic attraction mechanism simultaneously, electromagnetism adhesive is there is by magnetic attraction mechanism and rotary opening mechanism outer ring, and control moving radially of rotary opening mechanism, realize the radial drawing slowly in the process rotated of PVC-O body;
D, radial drawing, to preliminary dimension, are closed heating, are rotated further, until PVC-O body cooling and shaping, machine, and take out after body cooling from processing cylinder.
Compared with prior art, the beneficial effect that the present invention has is:
1, possess body to stretch and body stopping means simultaneously, PVC-O body is sleeved between spreading mechanism and hold-down mechanism, hold-down mechanism is as stopping means, power is provided by spreading mechanism, stretch out PVC-O body, realize the radial drawing of body, simultaneously, matched with spreading mechanism by the hold-down mechanism of arranged outside, PVC-O body is relatively fixing, stop it in the random movement of radial direction, it is forced to stretch uniformly according to the draw direction of spreading mechanism, expansion, effectively ensure that the overall uniformity of body radial drawing, ensure the working strength of tubing.
2, spreading mechanism is used for realizing the radial drawing of tubing, and the pattern that spreading mechanism adopts irony rotation bracer to match with the magnetic attraction mechanism possessing powerful electromagnetic attraction, bracer is rotated by inhaling, the radial drawing of tubing is realized by the rectilinear movement rotating bracer generation, simultaneously, rotate bracer and follow again central shaft generation synchronous rotary, this just effectively ensure that and the expansion precision that body stretches further improves the uniformity of drawing pipe.
3, rotary opening mechanism and magnetic attraction mechanism respectively correspondence arrange many groups, corresponding rotation bracer also arranges many groups of respective numbers, the application point arranged body is expanded of multiple rotation bracer increases as much as possible, simultaneously, rotate bracer also to rotate with central shaft, namely spreading mechanism is rotating expansion tubing by the rotation of self, more effectively ensure that the uniformity that body is expanded.
4, adhesive pressing plate with rotate bracer with the use of, body is controlled, at fixing Working position, effectively prevent arbitrarily moving radially of body, the impact that the mismachining tolerance avoiding this kind of movement to bring causes drawing pipe uniformity.
Accompanying drawing explanation
Fig. 1 is PVC-O tubing radial magnetic induction stretching device front view schematic diagram.
Fig. 2 is processing cylinder inner structure front view cross-sectional schematic.
Fig. 3 is that relation side view schematic diagram installed by spreading mechanism and hold-down mechanism.
Fig. 4 is PVC-O tubing radial magnetic induction stretching device axonometric drawing schematic diagram.
Fig. 5 is hold-down mechanism sectional view schematic diagram.
Wherein, 1, base 2, afterbody hold-down support 3, adjustment cushion block 4, motor base 5, motor 6, processing cylinder 7, shaft coupling 8, bearing 9, anterior fixed head 10, hold-down mechanism 1001, outer sealed tube 1002, capping 1003, pull-in winding 1004, spring 1005, adhesive armature 1006, adhesive pressing plate 11, spreading mechanism 1101, central shaft 1102, irony rotates bracer 1103, strong electromagnet 1104, electromagnet coil group 1105, protruding 1106, coil tube 12, suspension end cap 13, PVC-O body 14, adhesive electromagnet.
Detailed description of the invention
Fig. 1 ~ 5 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 5, the present invention will be further described.
With reference to accompanying drawing 1 ~ 5: a kind of PVC-O tubing radial magnetic induction stretching device, comprise base 1, processing cylinder 6, electric heater unit, the spreading mechanism 11 of radial drawing PVC-O body 13 and the hold-down mechanism 10 of compacting PVC-O body 13, processing cylinder 6 inwall is provided with electric heater unit, electric heater unit is be arranged on the electrical heating wire on the inwall of processing cylinder 6, can be distributed on the inwall of processing cylinder 6, ensure uniform heating effect.Processing cylinder 6 is laterally arranged on base 1, base 1 can as shown in Figure 1, be divided into left and right two parts, processing cylinder 6 is arranged between left and right base 1, processing cylinder 6 two ends can be respectively equipped with removably end cap, or processing cylinder 6 is one side closed, opposite side installs an end cap, processing cylinder 6 side connects revolving power mechanism, by electric heater unit, PVC-O body is heated, , spreading mechanism 11 is axially arranged in processing cylinder 6, hold-down mechanism 10 is arranged on processing cylinder 6, inner through processing cylinder 6 near spreading mechanism 11, PVC-O body 13 is sleeved between spreading mechanism 11 and hold-down mechanism 10, inner through processing cylinder 6 near spreading mechanism 11, to PVC-O body 13 radial location.PVC-O body 13 inserts in processing cylinder 6, is sleeved between spreading mechanism 11 and hold-down mechanism 10.
Spreading mechanism 11 comprises rotary opening mechanism and magnetic attraction mechanism, rotary opening mechanism comprises central shaft 1101 and the many groups irony be axially arranged on central shaft 1101 rotates bracer group, often organize irony rotation bracer group and comprise the irony rotation bracer 1102 of multiple radial equipartition in central shaft 1101 outer ring, central shaft 1101 is provided with multiple projection 1105 rotating bracer 1102 for installing irony, and irony rotates inside bracer 1102 and is provided with the groove with protruding 1105 formation activity grafting; Magnetic attraction mechanism, comprise strong electromagnet 1103 and electromagnet coil group 1104, strong electromagnet 1103 outer suit electromagnet coil group 1104, and the outer ring of processing cylinder 6 is fixedly mounted on by coil tube 1106, magnetic attraction mechanism is provided with many groups, matches with the position that irony rotates bracer group in the installation site of each group.Irony rotates bracer 1102 for inner hollow setting, and fitting with PVC-O body 13, to contact outer face be arcwall face.Irony rotates bracer 1102 and is centrosymmetric and is provided with multiple, and the present embodiment is preferably provided with three, and each irony rotates the curved setting in outer ring of bracer 1102.
The side that processing cylinder 6 end is stretched out in central shaft 1101 one end is provided with revolving power mechanism, revolving power mechanism comprises motor 5 and shaft coupling 7, motor 5 is fixed on base 1 one end by motor base 4, and motor 5 output connects by shaft coupling 7 end that central shaft 1101 stretches out processing cylinder 6.
Irony rotates bracer 1102 near central shaft 1101 under spring tension effect, and when central shaft 1101 rotates, irony rotates bracer 1102 under centrifugal action, and away from central shaft 1101, irony rotates PVC faced by bracer 1102 evagination and plays radial drawing effect; Simultaneously, magnetic attraction mechanism mainly booster action, when centrifugal force is not enough to make irony rotate bracer 1102 outward movment, electromagnet coil group 1104 is energized, magnetic attraction imports in processing cylinder 6 by strong electromagnet 1103, magnetic force rotates bracer 1102 to irony and produces suction, and strong electromagnet 1103 and electromagnet coil group 1104 are provided with many groups along processing cylinder 6 circumference, and it is identical that many group coil winding directions are identical, many groups the direction of the winding current is identical, many groups coil produces magnetic force direction.
Hold-down mechanism 10 comprises spring 1004, adhesive armature 1005 and adhesive pressing plate 1006, adhesive pressing plate 1006 is compressed on outside PVC-O body 13, the capping 1002 of outer sealed tube 1001 and outer sealed tube 1001 top easy disassembly is provided with outside adhesive armature 1005, pull-in winding 1003 is set with between adhesive armature 1005 top and outer sealed tube 1001, pocketed springs 1004 between bottom and outer sealed tube 1001, outer sealed tube 1001 middle inside is provided with the boss of a circle mounting spring 1004; Adhesive armature 1005 bottom is inserted and is processed in cylinder 6 and install adhesive pressing plate 1006 in this end, and adhesive pressing plate 1006 and irony rotate bracer 1102 and arrange with radian.
One end that central shaft 1101 stretches out processing cylinder 6 is fixed on the end processing cylinder 6 by bearing 8, the other end is provided with the magnetic levitation adhesive mechanism preventing central shaft 1101 ends sag, and magnetic levitation adhesive mechanism comprises the adhesive electromagnet 14 be arranged on outside processing cylinder 6 and the suspension end cap 12 being fixed on central shaft 1101 end.
Utilize the processing method of PVC-O tubing radial magnetic induction stretching device, comprise the following steps:
A, hold-down mechanism 10 are energized, float and depart from spreading mechanism 11, power by giving pull-in winding 1003, adhesive armature 1005 and adhesive pressing plate 1006 are drawn onto electric heater unit inside facilitates pvc pipe to enter, reserve the gap of tubular object extruding, PVC-O body 13 to be processed is axially pushed from processing cylinder 6 one end, and be sleeved between irony rotation bracer 1102 and adhesive pressing plate 1006, install and fixedly complete and be sleeved on spreading mechanism 11 outer ring, then push down tubing by hold-down mechanism 10 and prevent it from rotating; PVC-O tubing enters the power-off of rear hold-down mechanism 10, and only work when adding material, after material is put into, spring 1004 can withstand on adhesive pressing plate 1006, makes it compress PVC-O body 13, prevents it from rotating;
B, by the electrical heating wire as electric heater unit that processing cylinder 6 inwall is arranged, the PVC-O body 13 in processing cylinder 6 to be heated, until body be in can the soft state of stretch process, continue heated at constant temperature;
C, startup revolving power mechanism, rotary opening mechanism rotates under the drive of revolving power mechanism in PVC-O body 13, give the energising of magnetic attraction mechanism simultaneously, electromagnetism adhesive is there is by magnetic attraction mechanism and rotary opening mechanism outer ring, and control moving radially of rotary opening mechanism, realize PVC-O body 13 radial drawing slowly in the process rotated;
Concrete, start central shaft 1101 by revolving power mechanism to rotate, central shaft 1101 drives the irony being arranged on its outer ring to rotate bracer 1102 synchronous axial system, simultaneously, to magnetic attraction, mechanism powers, electromagnet coil group 1104 electric after, utilize the powerful suction of strong electromagnet 1103 to inhale the dynamic irony be arranged in processing cylinder 6 and rotate bracer 1102, because inside irony rotation bracer 1102, activity is plugged on central shaft 1101 outer ring, therefore, rotate the outside rectilinear movement of bracer 1102 in irony and to follow again in the rotary course of central shaft 1101 uniform radial drawing PVC-O tubing slowly simultaneously, the uniformity that the overall outward radial of PVC-O tubing stretches can be ensured thus, meanwhile, the outer ring of PVC-O tubing also compresses by hold-down mechanism 10, bracer 1102 mating reaction is rotated by adhesive pressing plate 1006 and irony, PVC-O body 13 is clamped, adhesive pressing plate 1006 can be radial slight mobile under the effect of spring 1004 and adhesive armature 1005, meet the radial drawing distance needs of PVC-O body 13, can PVC-O body 13 be controlled within the specific limits again simultaneously, prevent PVC-O body 13 from occurring stretching uniformity that unnecessary slip affects tubing, after the rotation radial drawing body of spreading mechanism 11, realize the radial drawing of PVC-O body 13,
D, radial drawing, to preliminary dimension, are closed heating, are rotated further, until PVC-O body 13 cooling and shaping, machine, and take out after body cooling from processing cylinder 6.PVC-O body 13 to be processed is axially pushed from processing cylinder 6 one end, is sleeved on outside spreading mechanism 11.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (8)
1. a PVC-O tubing radial magnetic induction stretching device, is characterized in that, comprising: base (1);
Processing cylinder (6), inwall is provided with electric heater unit, is laterally arranged on base (1), is heated by electric heater unit to PVC-O body (13);
Spreading mechanism (11), comprise rotary opening mechanism and magnetic attraction mechanism, rotary opening mechanism shaft is to being arranged in processing cylinder (6), rotary opening mechanism stretches out one end processing cylinder (6) outside and is connected with revolving power mechanism, driven by revolving power mechanism and realize stretching to the radial rotary of PVC-O body (13), magnetic attraction mechanism is fixedly mounted on the outer ring of processing cylinder (6), with rotary opening mechanism outer ring, electromagnetism adhesive can occur;
Hold-down mechanism (10), is arranged in processing cylinder (6), inner through the close spreading mechanism (11) of processing cylinder (6), to PVC-O body (13) radial location;
PVC-O body (13) inserts in processing cylinder (6), is sleeved between spreading mechanism (11) and hold-down mechanism (10).
2. a kind of PVC-O tubing according to claim 1 radial magnetic induction stretching device, it is characterized in that: described rotary opening mechanism comprises central shaft (1101) and the many groups irony be axially arranged on central shaft (1101) rotates bracer group, often organize irony rotation bracer group and comprise irony rotation bracer (1102) of multiple radial equipartition in central shaft (1101) outer ring, central shaft (1101) is fixed with multiple projection (1105) rotating bracer (1102) for installing irony, irony rotates bracer (1102) inner side and is provided with the groove with protruding (1105) formation activity grafting,
Magnetic attraction mechanism, comprise strong electromagnet (1103) and electromagnet coil group (1104), strong electromagnet (1103) is set with electromagnet coil group (1104) outward, and the outer ring of processing cylinder (6) is fixedly mounted on by coil tube (1106), magnetic attraction mechanism centrally axle (1101) outer ring is provided with many groups, and at central shaft (1101) radial ringed uniform many groups.
3. a kind of PVC-O tubing according to claim 2 radial magnetic induction stretching device, it is characterized in that: the side that processing cylinder (6) end is stretched out in described central shaft (1101) one end is provided with revolving power mechanism, revolving power mechanism comprises motor (5) and shaft coupling (7), motor (5) is fixed on base (1) one end by motor base (4), and motor (5) output connects by shaft coupling (7) end that central shaft (1101) stretches out processing cylinder (6).
4. a kind of PVC-O tubing according to claim 3 radial magnetic induction stretching device, is characterized in that: it is that inner hollow is arranged that irony rotates bracer (1102), and fitting with PVC-O body (13), to contact outer face be smooth arcwall face.
5. the radial magnetic induction of a kind of PVC-O tubing according to claim 2 or 4 stretching device, it is characterized in that: hold-down mechanism (10) comprises spring (1004), adhesive armature (1005) and adhesive pressing plate (1006), adhesive pressing plate (1006) is compressed on PVC-O body (13) outer surface, adhesive armature (1005) outside is provided with the capping (1002) of outer sealed tube (1001) and outer sealed tube (1001) top easy disassembly, and adhesive armature (1005) bottom is inserted and processed in cylinder (6) and install adhesive pressing plate (1006) in this end; Pull-in winding (1003) is set with between adhesive armature (1005) top and outer sealed tube (1001), pocketed springs (1004) between bottom and outer sealed tube (1001), outer sealed tube (1001) middle inside is provided with the boss of a circle mounting spring (1004), spring (1004) one end is fixed in outer sealed tube (1001), and the other end is sleeved on after on adhesive armature (1005) and is fixedly connected with adhesive pressing plate (1006).
6. a kind of PVC-O tubing according to claim 1 radial magnetic induction stretching device, is characterized in that: described electric heater unit is for being arranged on the electrical heating wire on the inwall of processing cylinder (6).
7. a kind of PVC-O tubing according to claim 3 radial magnetic induction stretching device, it is characterized in that: one end that described central shaft (1101) stretches out processing cylinder (6) is fixed on the end processing cylinder (6) by bearing (8), the other end is provided with the magnetic levitation adhesive mechanism preventing central shaft (1101) ends sag, and magnetic levitation adhesive mechanism comprises the adhesive electromagnet (14) being arranged on processing cylinder (6) outside and the suspension end cap (12) being fixed on central shaft (1101) end.
8. utilize a processing method for the radial magnetic induction of the PVC-O tubing described in any one of claim 1 ~ 7 stretching device, it is characterized in that, comprise the following steps:
A, hold-down mechanism (10) are energized, float and depart from the contact with spreading mechanism (11), reserve the gap of tubular object extruding, PVC-O body (13) to be processed is axially pushed from processing cylinder (6) one end, be sleeved on spreading mechanism (11) outer ring, hold-down mechanism (10) power-off, then push down tubing by hold-down mechanism (10) and prevent it from rotating;
B, by electric heater unit to PVC-O body (13) heating in processing cylinder (6), until body be in can the soft state of stretch process, and continue heated at constant temperature;
C, startup revolving power mechanism, rotary opening mechanism rotates under the drive of revolving power mechanism in PVC-O body (13), give the energising of magnetic attraction mechanism simultaneously, electromagnetism adhesive is there is by magnetic attraction mechanism and rotary opening mechanism outer ring, and control moving radially of rotary opening mechanism, realize PVC-O body (13) radial drawing slowly in the process rotated;
D, radial drawing, to preliminary dimension, are closed heating, are rotated further, until PVC-O body (13) cooling and shaping, machine, and take out after body cooling from processing cylinder (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510554278.8A CN105014942B (en) | 2015-09-02 | 2015-09-02 | A kind of PVC O tubing radial directions magnetic senses stretching device and its processing method |
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| CN201510554278.8A CN105014942B (en) | 2015-09-02 | 2015-09-02 | A kind of PVC O tubing radial directions magnetic senses stretching device and its processing method |
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| CN105014942B (en) | 2017-07-04 |
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