CN206446086U - A kind of high speed PVC mould with double split flow tatting structure - Google Patents

A kind of high speed PVC mould with double split flow tatting structure Download PDF

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Publication number
CN206446086U
CN206446086U CN201720060316.9U CN201720060316U CN206446086U CN 206446086 U CN206446086 U CN 206446086U CN 201720060316 U CN201720060316 U CN 201720060316U CN 206446086 U CN206446086 U CN 206446086U
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core
mould
high speed
split flow
spreader
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CN201720060316.9U
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余汉祥
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SHANGHAI JINHU EXTRUSION EQUIPMENT CO Ltd
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SHANGHAI JINHU EXTRUSION EQUIPMENT CO Ltd
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Abstract

The utility model is related to a kind of high speed PVC mould with double split flow tatting structure, including:The shell that the mouth mold that is sequentially connected, transition mouth mold, die cavity, spreader, die body are constituted, it is arranged in shell, the inner core that core, core block, transition core, core rod and the spreader being sequentially connected are constituted, provided with two retainers in the passage formed between inner core and shell, the retainer is arranged at spreader position.Compared with prior art, the utility model can be such that material further plastifies uniformly, improve the mechanical property of product, and can also improve extrusion yield.

Description

A kind of high speed PVC mould with double split flow tatting structure
Technical field
The utility model is related to a kind of pipe mold, more particularly, to a kind of high speed pvc pipe with double split flow tatting structure Material mould.
Background technology
At present, with the extensive development of China's economic construction, most of plastic manufacturers more need it is small-sized, at a high speed, The plastic production equipment of high yield.Wherein PVC (polyvinyl chloride) is because its cost performance is high, bright in colour, corrosion-resistant, firm and durable And its be widely used in the features such as easy modification in terms of life, production, transport, medical treatment.And made in numerous PVC (polyvinyl chloride) In product, PVC (polyvinyl chloride) tubing is its second largest consumer field, accounts for the 20% of its consumption figure.PVC (polyvinyl chloride) tubing The features such as having preferable tension compressive strength, excellent corrosion resistance, good watertightness and less fluid resistance because of it, makes Its extensive utilization is in terms of water supply, draining, blowdown and fire-fighting.
Production PVC (polyvinyl chloride) tubing needed for equipment be respectively extruder, mould, calibration sleeve and vacuum tank, hauling machine, The upstream devices such as cutting machine.Wherein mould is to realizing PVC (polyvinyl chloride) tubular object extrudings technological requirement, products appearance modeling requirement And product other use requirements play a part of can not be substituted.And the structure design of mould limits material into mould and from mouth The speed of mould outflow, so as to restrict the maximum output of extrusion main unit.Therefore the yield of product exists in PVC (polyvinyl chloride) production line It can not be improved under the restriction of mould.My company determines after market survey, most domestic PVC (polyvinyl chloride) pipe mold Yield can not meet the requirement in market.The side of the solution of most domestic PVC (polyvinyl chloride) the tubing manufacturer problem Method is more PVC (polyvinyl chloride) pipe production lines of purchase, and the yield of product is improved by increasing the quantity of production line.But Make in this way cost budgeting, energy resource consumption, occupation area of equipment and human cost etc. can be made to greatly improve, and it is this Method solves the problem of production line production capacity is not enough not from root.Therefore study a kind of large-tonnage PVC of high speed (polychlorostyrene second Alkene) tubing production mould is necessary.
Utility model content
The purpose of this utility model is exactly the defect in order to overcome above-mentioned prior art presence and providing one kind enters material Single stage plastication is uniform, improves the high speed PVC mould with double split flow tatting structure of the mechanical property of product.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of high speed PVC mould with double split flow tatting structure, including:
The shell that the mouth mold that is sequentially connected, transition mouth mold, die cavity, spreader, die body are constituted,
It is arranged in shell, the inner core that core, core block, transition core, core rod and the spreader being sequentially connected are constituted is interior Provided with two retainers in the passage formed between core and shell, the retainer is arranged at spreader position.
The two ends of described retainer are in fusiformis structure, are respectively protruding into die cavity and die body.
Clamping screw is provided with the middle part of described inner core.
Described core block is pressed on transition core by clamping screw.
Described core is pressed in core block by clamping screw.
Described transition mouth mold is pressed on die cavity by mould pressure ring.
Described mouth mold is pressed in transition mouth mold by mouth mold pressure ring.
Described core rod and spreader are through mode connects for screw in the rear and front end of spreader.
Independent heating collar is equipped with each part for constituting mould.
The annulus area of compression section (i.e. spreader region) is increased by double split flow tatting structure, and will not be caused PVC materials are in compression section (i.e. spreader region) thickener or cross thermal decomposition, the ring of compression section (i.e. spreader region) The increase of shape area) so that there are enough compression ratios between spreader and mouth mold, core.
Compared with prior art, the utility model has advantages below:
1st, production yields is big:The area of the design increase spreader annular channel of double split flow tatting structure, increases mould Extruded velocity, extrusion yield expands will by about one time.
2nd, it is wide using scope:High speed PVC mould with double split flow tatting structure is relative to conventional single spreader pipe Material mould, the tube outer diameter scope that each mould can be extruded has increased.
3rd, product plasticizing effect is good:The time that the design of double split flow shuttle makes melt material rest in mould becomes longer, and Melt material will not be allowed to be detained in mould and decompose or thickener, material is further plastified the mechanical property for uniformly improving product.
4th, smooth product surface product:Double split flow shuttle is designed compared with the structure that single spreader of same volume is designed, double The design of spreader maintains suitable compression ratio and reduced because high-rate of shear causes " solution rupture " phenomenon, so that product Remain in that smooth surface area.
5th, it is energy-saving:Mold core automatic heating temperature control regulation can make tube wall thickness fluctuation minimum, save former to reach The purpose of material.
6th, the runner design of optimization:The design of double split flow shuttle ensures that maximum extrusion capacity and melt have enough stops in mould Time, to eliminate the temperature difference of melt;The runner designed by streaming, to ensure that material is capable of flowing through for smooth uniform; Mouthful core is well-designed to promote melt pressure in mould more balanced;Ensure that interflow line does not influence the intensity of tubing.
7th, it is cost-effective:The mould of double split flow shuttle design can give full play to the yield of the extruder matched in production line, Improve the production efficiency of extrusion main unit, it might even be possible to change more large-tonnage extruder.For tubing production firm, in required life Production plastic pipe production capacity changes large-tonnage pipe production line in the case of determining can reduce the number of same specification pipe production line Amount, so as to substantially reduce cost budgeting, energy resource consumption, occupation area of equipment, human cost etc..
8th, it is easy to operate:The simplification and accuracy of operation are just fully taken into account in the design process.Bolt is easy to Each section of mould is quickly and accurately assembled.Mould support car can conveniently realize the Accurate align between mould and production line.
9th, it is easy to cleaning:Part in mould directly with melt contacts is using Surface hardened layer and the evanohm of modifier treatment Steel are manufactured, only can be quickly clear by simple polishing in production because the infringement that material thickener is caused to mould Remove.
10th, precise control of temperature:The essence of each region bringing-up section temperature on mould is ensure that using the heating collar of independent control Parasexuality.
11st, good leak tightness:Due to improving the attachment structure of each part of mould, material is difficult to leak in production.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1- mouth molds, 2- cores, 3- core blocks, 4- mouth molds pressure ring, 5- transition mouth mold, 6- transition core, 7- mould pressures Ring, 8- die cavitys, 9- core rods, 10- clamping screws, 11- spreaders, 12- die bodys, 13- spreaders.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.Following examples will be helpful to this The technical staff in field further understands the utility model, but does not limit the utility model in any form.It should be pointed out that To those skilled in the art, without departing from the concept of the premise utility, some deformations can also be made And improvement.These belong to protection domain of the present utility model.
Embodiment
A kind of high speed PVC mould with double split flow tatting structure, its structure are as shown in figure 1, the mould is main by mouth Mould 1, core 2, core block 3, mouth mold pressure ring 4, transition mouth mold 5, transition core 6, mould pressure ring 7, die cavity 8, core rod 9, compression spiral shell Bar 10, spreader 11, die body 12, spreader 13 and its corresponding heating collar and screw-nut are constituted.The die body 12 passes through spiral shell Bolt is connected with spreader 11 and die cavity 8 successively, and transition mouth mold 5 is pressed on die cavity 8 by mould pressure ring 7, and mouth mold 1 passes through mouth mold Pressure ring is pressed in transition mouth mold 5, and core rod 9 and spreader 13 are connected by screw in the rear and front end of spreader 11, transition respectively Core 6 is connected by screw on core rod 9, and core 2 and core block 3 pass sequentially through clamping screw 10 and be pressed on core block 3 Cross on core 6, core 2 is pressed in core block 3 (see Fig. 1).
The melt material extruded from extruder is collaborated by merging core or adapter enters mould, and melt material passes through shunting Cone 13 and die body 12 carry out annular shunting and full of spreader 11, in spreader 11 in the presence of retainer, melt material by Screw becomes linear motion.Last melt material is by spreader 11 respectively through transition mouth mold 5, transition core 6 and mouth mold 1st, core 2, core block 3 constitute uniform flow passage transition and wherein carry out shear flow melt material is further plastified It is even.Due to there are enough compression ratios between spreader 11 and mouth mold 1, core 2 so that plastic products are fine and close, more preferable mechanics is obtained Performance.Make product molding.The wall thickness of product can slightly be adjusted by mouth mold pressure ring 4, made the wall thickness of shaping pipe and tended to be equal It is even.The temperature in each region of mould can be wherein controlled by the heating collar on mould, so that control material is in each area of mould The physical state in domain, makes material obtain more preferable mobility and plasticizing effect in a mold and will not cause material thickener.Most Material leaves the shaping of mouth mold 1 by calibration sleeve and upstream device afterwards, so as to obtain final PVC (polyvinyl chloride) pipe finished.
PVC110 type extrusion die parameters
PVC110 extrusion dies Extrude caliber scope mm Yield kg/h
Single spreader structure Φ63-110 400
Double split flow tatting structure Φ63-160 720
The annulus area of compression section (i.e. spreader region) is increased by double split flow tatting structure, and will not be caused PVC materials are in compression section (i.e. spreader region) thickener or cross thermal decomposition, the ring of compression section (i.e. spreader region) The increase of shape area) so that there are enough compression ratios between spreader and mouth mold, core.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, This has no effect on substantive content of the present utility model.

Claims (9)

1. a kind of high speed PVC mould with double split flow tatting structure, including:
The shell that the mouth mold that is sequentially connected, transition mouth mold, die cavity, spreader, die body are constituted,
It is arranged in shell, the inner core that core, core block, transition core, core rod and the spreader being sequentially connected are constituted,
Characterized in that, provided with two retainers in the passage formed between inner core and shell, the retainer is arranged on spreader At position.
2. a kind of high speed PVC mould with double split flow tatting structure according to claim 1, it is characterised in that institute The two ends for the retainer stated are in fusiformis structure, are respectively protruding into die cavity and die body.
3. a kind of high speed PVC mould with double split flow tatting structure according to claim 1, it is characterised in that institute Clamping screw is provided with the middle part of the inner core stated.
4. a kind of high speed PVC mould with double split flow tatting structure according to claim 3, it is characterised in that institute The core block stated is pressed on transition core by clamping screw.
5. a kind of high speed PVC mould with double split flow tatting structure according to claim 3, it is characterised in that institute The core stated is pressed in core block by clamping screw.
6. a kind of high speed PVC mould with double split flow tatting structure according to claim 1, it is characterised in that institute The transition mouth mold stated is pressed on die cavity by mould pressure ring.
7. a kind of high speed PVC mould with double split flow tatting structure according to claim 1, it is characterised in that institute The mouth mold stated is pressed in transition mouth mold by mouth mold pressure ring.
8. a kind of high speed PVC mould with double split flow tatting structure according to claim 1, it is characterised in that institute The core rod and spreader stated are through mode connects for screw in the rear and front end of spreader.
9. a kind of high speed PVC mould with double split flow tatting structure according to claim 1, it is characterised in that group Independent heating collar is equipped with into each part of mould.
CN201720060316.9U 2017-01-18 2017-01-18 A kind of high speed PVC mould with double split flow tatting structure Active CN206446086U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108312470A (en) * 2017-01-18 2018-07-24 上海金湖挤出设备有限公司 A kind of double split flow shuttle high speed PVC pipe mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108312470A (en) * 2017-01-18 2018-07-24 上海金湖挤出设备有限公司 A kind of double split flow shuttle high speed PVC pipe mold

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