CN208497631U - A kind of mold improving PVC spool production stability - Google Patents

A kind of mold improving PVC spool production stability Download PDF

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Publication number
CN208497631U
CN208497631U CN201820868445.5U CN201820868445U CN208497631U CN 208497631 U CN208497631 U CN 208497631U CN 201820868445 U CN201820868445 U CN 201820868445U CN 208497631 U CN208497631 U CN 208497631U
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China
Prior art keywords
mold
die holder
production stability
pvc spool
connect
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CN201820868445.5U
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邓添华
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NANJING LIANSU TECHNOLOGY INDUSTRIAL Co Ltd
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NANJING LIANSU TECHNOLOGY INDUSTRIAL Co Ltd
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Abstract

The utility model relates to PVC spool production moulds, more specifically, it is related to a kind of mold for improving PVC spool production stability, it include the linkage section of solution, linkage section is connect with die holder is shunted, and is shunted die holder and is combined with several extrusion dies, extrusion die is equipped with die holder, extrusion die is equipped with the spreader of the taper cooperated with die holder, and spreader and die holder cooperatively form distributary division, and distributary division is gradually tapered up along melt flow direction;Spreader passes through the flat segments being equipped with and connect with mold core, and mold core and contraction set cooperatively form contraction flow region, and contraction flow region is gradually tapered up along melt flow direction;Mold core and mouth mold cooperatively form setting section, and setting section is equipped with the tapered portion gradually tapered up and flat part, the outlet end of setting section are connect with coolant jacket.Mould flow passage structure design with optimization, is effectively reduced solution die swelling power, comprehensive to promote production stability.

Description

A kind of mold improving PVC spool production stability
Technical field
The utility model relates to PVC spool production moulds, more particularly, to a kind of raising PVC spool production stability Mold.
Background technique
In the market production spool generally use one go out four production model, to reach higher production efficiency, but therewith Come, some problems also occurs in production in product, and most distinct issues are exactly: tubing production stability difference, high rejection rate , production cost is increased, is unfavorable for the raising of production stability and reduces product rejection rate.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, it is raw to provide a kind of raising PVC spool The mold of stability is produced, there is the mould flow passage structure design of optimization, solution die swelling power is effectively reduced, it is comprehensive to promote production Stability.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of raising PVC spool production stabilization Property mold, wherein include the linkage section of solution, linkage section with shunt die holder and connect, shunting die holder, to be combined with several crowded Mold out, extrusion die are equipped with die holder, and extrusion die is equipped with the spreader of the taper cooperated with die holder, and spreader and die holder cooperate Distributary division is formed, distributary division is gradually tapered up along melt flow direction;Spreader passes through the flat segments being equipped with and connect with mold core, mold core Contraction flow region is cooperatively formed with set is shunk, contraction flow region is gradually tapered up along melt flow direction;Mold core and mouth mold cooperatively form setting section, Setting section is equipped with the tapered portion gradually tapered up and flat part, the outlet end of setting section are connect with coolant jacket.
In the utility model, it is connect by linkage section with die holder is shunted, solution is imported and shunts die holder, divergent die by linkage section Seat is connected with several extrusion dies, and solution is imported several extrusion dies by the effect by shunting die holder.Extrusion die is set There is the spreader with the taper of die holder cooperation, the distributary division that spreader is cooperatively formed with die holder is gradually received along melt flow direction Contracting.Spreader passes through the flat segments being equipped with and connect with mold core, and solution is flowed by flat segments.Mold core and contraction set cooperatively form receipts Contracting portion, contraction flow region are gradually tapered up along melt flow direction, by the contraction of solution, are reduced the cross-sectional volume of solution, are formed simultaneously Certain stretching, by solution outer dimension gradually by greatly as small transformation, so that the further Dispersion Fusion of molecule between solution, promotion is molten Body intensity.Setting section is equipped with the tapered portion that gradually tapers up and flat part, solution gradually drawn by thickness by tapered portion it is thin, outer diameter by Become smaller greatly, gradually stretches.Using flat part, compression compact melt completes melt and is plasticized and forms in mold.
In one embodiment, spreader is equipped with bullet and fixed part, and bullet and die holder cooperatively form distributary division, Fixed part is connect with mold core.Bullet with die holder cooperatively form distributary division, melt is split by solid by distributary division Hollow circle, connect to set spreader and is fixed by fixed part with mold core.
In one embodiment, it shrinks set to be cooperatively connected with mouth mold, contraction flow region and setting section are connected with each other.Shrink set with Mouth mold is cooperatively connected, and mouth mold is fixed, and realizes that contraction flow region is consistent with the connection of setting section.
Preferably, the contraction of contraction flow region and the shrink-fit of tapered portion are consistent.Contraction flow region shrinks solution, tapered portion Also solution is shunk, guarantees stability of the solution in flow process.
In one embodiment, extrusion die is equipped with pressing plate, and pressing plate is connect with mouth mold, pressing plate and contraction set cooperation counterpart Mould is fixed.Pressing plate and contraction set cooperation, are fixed mouth mold, realize the accurate fit of contraction flow region and tapered portion.
In one embodiment, coolant jacket is equipped with outer water jacket, and outer water jacket is connected with coolant jacket made of Heat Conduction Material.It is cold But what is be arranged with is made from a material that be thermally conductive, and avoids accumulation of the heat in coolant jacket.
Preferably, coolant jacket is equipped with the cavity cooperated with PVC spool, and coolant jacket is equipped with helicla flute, is guided by helicla flute Cooling water flows through coolant jacket.
Coolant jacket is equipped with cavity, accommodates PVC spool by cavity.Coolant jacket is equipped with helicla flute, and water flow flows in helicla flute It crosses, coolant jacket is flowed through by helicla flute guide cooling water.
Preferably, the inner surface for the cavity that coolant jacket is equipped with is equipped with frosting, improves wear resistance.
The utility model compared with prior art, has the following characteristics that the structure design of the mold runner of optimization, realization pair The careful design of die pressure, the mouth mold of connecting shaping section reduce melt die swelling power, meanwhile, using spiral cooling water Set, it is comprehensive to promote production stability.
Detailed description of the invention
Fig. 1 is overall structure diagram in the utility model embodiment.
Fig. 2 is coolant jacket structural schematic diagram in the utility model embodiment.
Fig. 3 is extrusion die structural schematic diagram in the utility model embodiment.
Specific embodiment
Attached drawing only for illustration, should not be understood as limiting the present invention;In order to more preferably illustrate this implementation Example, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product;For those skilled in the art For, the omitting of some known structures and their instructions in the attached drawings are understandable.Positional relationship is described in attached drawing to be only used for Exemplary illustration should not be understood as limiting the present invention.
Embodiment 1:
As Fig. 1 and as shown in figure 3, the utility model provide it is a kind of improve PVC spool production stability mold, include The linkage section 1 of solution, solution are connect by linkage section 1 with die holder 2 is shunted, and the solution outflux for shunting die holder 2 is equipped with extrusion die Tool, in the present embodiment, there are four extrusion die is set.
As shown in figure 3, the solution inflow entrance of extrusion die is equipped with die holder 3, die holder 3 is equipped with the cavity of taper, extrusion die Interior to be equipped with spreader 4, spreader 4 is equipped with bullet 41 and fixed part 42.The cavity that bullet 41 and die holder 3 are equipped with cooperates, shape At distributary division 31, distributary division 31 is gradually tapered up along melt flow direction.
As shown in figure 3, fixed part 42 is connect with mold core 8, it is connect by fixed part 42 with mold core 8 and progress is set to spreader 4 It is fixed.
As shown in figure 3, the solution by distributary division 31 enters contraction flow region 51 by flat segments, contraction flow region 51 is to shrink set 5 The pyramidal structure cooperatively formed with mold core 8, contraction flow region 51 are gradually tapered up along melt flow direction, to molten during melt flow Body is stretched.
As shown in figure 3, mold core 8 and mouth mold 6 cooperatively form setting section, setting section is equipped with 61 peace of tapered portion gradually tapered up Straight portion 81, tapered portion 61 is gradually tapered up along melt flow direction, is squeezed solution, by the solution after extruding of tapered portion 61 Into flat part 81, further compression compact melt completes melt and is plasticized and forms in mold.
Mold core 8 is equipped with two parts, and a part is divided for the tapered portion 61 cooperated with contraction set 5 and mouth mold 6, what tapered portion 61 was divided The shape structure for shrinking set 5 and 6 part of mouth mold corresponding with size, and then the channel of taper is formed, while can guarantee contraction flow region 51 with the connection of the retracted configuration of tapered portion 61, avoid product quality from being affected.;Another part is to be cooled and shaped part, with Flat part 81 cooperates.
In the present embodiment, extrusion die is equipped with pressing plate 7, and 5 cooperation of pressing plate 7 and contraction set is fixed mouth mold 6, realizes The accurate fit of contraction flow region 51 and tapered portion 61.
As shown in Fig. 2, coolant jacket 92 is equipped with outer water jacket 91, outer water jacket 91 is connected with coolant jacket 92 made of Heat Conduction Material, PVC spool, which stretches, enters coolant jacket 92.Coolant jacket 92 is equipped with the cavity cooperated with PVC spool, and it is cold that PVC spool enters cavity progress But.Coolant jacket 92 is equipped with helicla flute 93, flows through coolant jacket 92,93 guide cooling water of helicla flute by 93 guide cooling water of helicla flute Rotational flow avoids scale or other impurity from depositing, has the function that clean automatically.
In the present embodiment, when mold design, need to meet following relationship: set the annular space area of spreader 4 as V1, mouth mold 6, The annular space area of mold core 8 is V2, and 6 diameter of bore of mouth mold is D, and shunting each discharge area after die holder 2 shunts is V3, shunts die holder 2 Longitudinal length is L, and being cooled to jacket diameter of bore is d, then:
V1/V3 >=4 and L is inversely proportional with the ratio, L is bigger, and the ratio is then smaller.
10≤V1/V2≤28 and D increases with the increase of the ratio, but need to guarantee that D/d ratio is not more than simultaneously 1.05。
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in Within the protection scope of the utility model claims.

Claims (8)

1. a kind of mold for improving PVC spool production stability, which is characterized in that include the linkage section of solution, the connection Section is connect with die holder is shunted, and is shunted die holder and is combined with several extrusion dies, the extrusion die is equipped with die holder, and extrusion die is set Have a spreader with the taper of die holder cooperation, spreader and die holder cooperatively form distributary division, distributary division along melt flow direction by Taper contracting;The spreader passes through the flat segments being equipped with and connect with mold core, and mold core and contraction set cooperatively form contraction flow region, the receipts Contracting portion is gradually tapered up along melt flow direction;The mold core and mouth mold cooperatively form setting section, and the setting section is equipped with and gradually receives The tapered portion and flat part of contracting, the outlet end of the setting section are connect with coolant jacket.
2. the mold according to claim 1 for improving PVC spool production stability, which is characterized in that the spreader is set There are bullet and fixed part, the bullet and die holder cooperatively form distributary division, and the fixed part is connect with mold core.
3. the mold according to claim 1 for improving PVC spool production stability, which is characterized in that contractions set and Mouth mold is cooperatively connected, and the contraction flow region and setting section are connected with each other.
4. the mold according to claim 3 for improving PVC spool production stability, which is characterized in that the contraction flow region It shrinks consistent with the shrink-fit of tapered portion.
5. the mold according to claim 1 for improving PVC spool production stability, which is characterized in that the extrusion die Equipped with pressing plate, the pressing plate is connect with mouth mold, and pressing plate is fixed mouth mold with set cooperation is shunk.
6. the mold according to claim 1 for improving PVC spool production stability, which is characterized in that the cooling is arranged There is outer water jacket, the outer water jacket is connected with coolant jacket made of Heat Conduction Material.
7. the mold according to claim 6 for improving PVC spool production stability, which is characterized in that the cooling is arranged There is the cavity with the cooperation of PVC spool, the coolant jacket is equipped with helicla flute, flows through coolant jacket by helicla flute guide cooling water.
8. the mold according to claim 7 for improving PVC spool production stability, which is characterized in that the cooling is arranged The inner surface of some cavitys is equipped with frosting, improves wear resistance.
CN201820868445.5U 2018-06-06 2018-06-06 A kind of mold improving PVC spool production stability Active CN208497631U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820868445.5U CN208497631U (en) 2018-06-06 2018-06-06 A kind of mold improving PVC spool production stability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820868445.5U CN208497631U (en) 2018-06-06 2018-06-06 A kind of mold improving PVC spool production stability

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108454055A (en) * 2018-06-06 2018-08-28 南京联塑科技实业有限公司 A kind of mold improving PVC spool production stabilities
CN113771303A (en) * 2021-11-10 2021-12-10 东营品航精密模具有限公司 Full-automatic impeller mould

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108454055A (en) * 2018-06-06 2018-08-28 南京联塑科技实业有限公司 A kind of mold improving PVC spool production stabilities
CN113771303A (en) * 2021-11-10 2021-12-10 东营品航精密模具有限公司 Full-automatic impeller mould
CN113771303B (en) * 2021-11-10 2022-02-08 东营品航精密模具有限公司 Full-automatic impeller mould

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