CN202283778U - Extrusion die in one-to-eight plastic pipe production equipment - Google Patents

Extrusion die in one-to-eight plastic pipe production equipment Download PDF

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Publication number
CN202283778U
CN202283778U CN2011203147419U CN201120314741U CN202283778U CN 202283778 U CN202283778 U CN 202283778U CN 2011203147419 U CN2011203147419 U CN 2011203147419U CN 201120314741 U CN201120314741 U CN 201120314741U CN 202283778 U CN202283778 U CN 202283778U
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CN
China
Prior art keywords
runner
die
secondary fluid
extrusion die
bifurcated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203147419U
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Chinese (zh)
Inventor
季湘杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd
Original Assignee
ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd filed Critical ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd
Priority to CN2011203147419U priority Critical patent/CN202283778U/en
Application granted granted Critical
Publication of CN202283778U publication Critical patent/CN202283778U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • B29C48/9115Cooling of hollow articles
    • B29C48/912Cooling of hollow articles of tubular films
    • B29C48/913Cooling of hollow articles of tubular films externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

Abstract

The utility model discloses an extrusion die in one-to-eight plastic pipe production equipment. The extrusion die comprises a die cavity body and die heads, wherein a runner is arranged in the die cavity body; a runner inlet and runner outlets are formed on the runner; the dies heads are connected to the runner outlets; the runner, which is a three-stage bifurcated runner, has a structure that the tail end of a main runner is bifurcated to form two first-stage sub-runners; the tail end of each one-stage sub-runner is bifurcated to form two second-stage sub-runners; the tail end of each two-stage sub-runner is bifurcated to form two third-stage sub-runners; one flow outlet is arranged at the tail end of each third-stage sub-runner; and one die head is connected to each runner outlet. The extrusion die has the advantages that the structure is simple; as the three-stage bifurcated runner is adopted, materials can be evenly distributed into each stage of runners; and one runner inlet is corresponding to eight runner outlet, so that the production efficiency is greatly improved, and the productivity is further greatly improved.

Description

One goes out the extrusion die in the eight plastic pipe production equipments
Technical field
The utility model relates to the plastic pipe production equipment, is specifically related to the extrusion die that in the eight plastic pipe production equipments.
Background technology
The plastic pipe production equipment mainly comprises several sections such as conical double screw extruder, extrusion die, vacuum sizing device, cooling device, draw-gear, cutter sweep.Raw material enters into conical double screw extruder after mixing; Conical double screw extruder advances extrusion die with raw material plasticizing back, and extrusion die is the critical component of tube forming, and the outside of extrusion die is with the external cast aluminum heaters; Get into vacuum sizing device after just the plastic pipe of one-step forming comes out from extrusion die; Sizing under the effect of cold water and vacuum, shaping pipe get in the cooling device and cool off, and are drawn to cutter sweep by draw-gear then and cut.The structure of the extrusion die in the plastic pipe production equipment mainly comprises at present: die cavity body and die head; The die cavity external is provided with the external cast aluminum heaters; Be provided with runner in the described die cavity body, the material after the heating gets into from the runner import, flows out from runner exit; The runner exit place is provided with die head, and what come out from die head exit is exactly the first plastic pipe of one-step forming.In said structure, a kind of flow passage structure form commonly used is the corresponding runner exit of a runner import, and the shortcoming of this version is: production efficiency is very low; Another kind of flow passage structure form commonly used is that a runner import directly is split into four runner exits; The shortcoming of this version is: will once shunt the runner exit quantity that forms and perform to ultimate attainment; If increase the runner exit quantity that once shunting forms again; Just be difficult to accomplish the production work of plastic pipe, thereby production efficiency also is difficult to further raising with guaranteeing both quality and quantity.
The utility model content
The problem that the utility model need solve provide the extrusion die that one of corresponding eight runner exits of a kind of runner import can enhancing productivity greatly go out in the eight plastic pipe production equipments.
For addressing the above problem, the technical scheme that the utility model adopts is: one goes out the extrusion die in the eight plastic pipe production equipments, comprising: die cavity body and die head; Be provided with runner in the described die cavity body, runner is provided with runner import and runner exit, and described die head is connected the runner exit place; Described runner is three grades of branch type runners; Its structure is: the terminal bifurcated of trunk runner goes out two one-level secondary fluid courses, and the terminal bifurcated of each one-level secondary fluid course goes out two secondary secondary fluid courses, and the terminal bifurcated of each secondary secondary fluid course goes out two three grades of secondary fluid courses; The end of each three grades of secondary fluid course is provided with runner exit, and each runner exit place all is connected with die head.
Further, aforesaid one goes out the extrusion die in the eight plastic pipe production equipments, and wherein, the both sides of die cavity body inner flow passage laterally evenly are provided with heating rod.
The utility model has the advantages that: simple in structure, adopt three grades of branch type runners, make material can be assigned in the runners at different levels equably; Corresponding eight runner exits of runner import; So once can eight plastic pipes of moulding, improve production efficiency greatly, and then improved production capacity greatly; After the both sides of runners at different levels laterally evenly were provided with some heating rods, the material in the runner was heated more even, had avoided the die cavity external to receive in the hot mode, because of die cavity body wall thickness ununiformity causes the uneven situation of being heated of material in the runner.
Description of drawings
Fig. 1 is the structural representation of the described extrusion die of the utility model.
Fig. 2 is an A-A generalized section among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Like Fig. 1, shown in Figure 2, one goes out the extrusion die in the eight plastic pipe production equipments, comprising: die cavity body and die head 5; Described die cavity body is made up of with two identical apotype cavitys 2 of structure main die cavity body 1; Be provided with three grades of branch type runners in described main die cavity body 1 and two apotype cavitys 2, material gets into from runner import 3, flows out from runner exit 4; Its concrete structure is: the terminal bifurcated of trunk runner 6 goes out two one-level secondary fluid courses 7 in the main die cavity body 1; Each one-level secondary fluid course 7 is connected with an apotype cavity 2, and the terminal bifurcated of each one-level secondary fluid course 7 goes out two secondary secondary fluid courses 8, and the terminal bifurcated of each secondary secondary fluid course 8 goes out two three grades of secondary fluid courses 9; The end of each three grades of secondary fluid course 9 is provided with runner exit 4, and described each runner exit 4 place are provided with a die head 5.The both sides of the runners at different levels in the secondary die cavity body 2 of main die cavity body 1 and two are horizontally arranged with heating rod 10, and described heating rod 10 is evenly arranged along the flow direction of material in runners at different levels.
During production; Material enters into trunk runner 6 from runner import 3; Be diverted to two one-level secondary fluid courses 7 from trunk runner 6 then; From two one-level secondary fluid courses 7, be diverted to respectively in four secondary secondary fluid courses 8 again, from four secondary secondary fluid courses 8, be diverted in eight three grades of secondary fluid courses 9 again, and then enter into corresponding eight die heads 5 respectively from eight three grades of secondary fluid courses, 9 eight terminal runner exits 4; From eight tubing that are basic forming that eight die heads 5 come out, eight tubing can get into next procedure and finalize the design, cool off.Owing to laterally evenly be provided with some heating rods 10 in the both sides of runners at different levels, like this material just can be in runners at different levels thermally equivalent, avoid occurring material because of the cooling not smooth phenomenon that flows.
The utility model has the advantages that: simple in structure; Adopt three grades of branch type runners; Material can be assigned in the runners at different levels equably, corresponding eight runner exits of runner import, corresponding eight runner exits of runner import; Improve the efficient of producing so greatly, and then improved production capacity greatly.After the both sides of runners at different levels laterally evenly were provided with some heating rods, the material in the runners at different levels was heated more even, had avoided the die cavity external to receive in the hot mode, because of die cavity body wall thickness ununiformity causes the uneven situation of being heated of material in the runner.

Claims (2)

1. the extrusion die that goes out in the eight plastic pipe production equipments, comprising: die cavity body and die head are provided with runner in the described die cavity body; Runner is provided with runner import and runner exit; Described die head is connected the runner exit place, it is characterized in that: described runner is three grades of branch type runners, and its structure is: the terminal bifurcated of trunk runner goes out two one-level secondary fluid courses; The terminal bifurcated of each one-level secondary fluid course goes out two secondary secondary fluid courses; The terminal bifurcated of each secondary secondary fluid course goes out two three grades of secondary fluid courses, and the end of each three grades of secondary fluid course is provided with runner exit, and each runner exit place all is connected with die head.
2. according to claim 1 one goes out the extrusion die in the eight plastic pipe production equipments, it is characterized in that: the both sides of die cavity body inner flow passage laterally evenly are provided with heating rod.
CN2011203147419U 2011-08-26 2011-08-26 Extrusion die in one-to-eight plastic pipe production equipment Expired - Fee Related CN202283778U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203147419U CN202283778U (en) 2011-08-26 2011-08-26 Extrusion die in one-to-eight plastic pipe production equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203147419U CN202283778U (en) 2011-08-26 2011-08-26 Extrusion die in one-to-eight plastic pipe production equipment

Publications (1)

Publication Number Publication Date
CN202283778U true CN202283778U (en) 2012-06-27

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Family Applications (1)

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310539A (en) * 2011-08-26 2012-01-11 张家港市杰达机械制造有限公司 Extrusion die of plastic pipe production equipment with one runner inlet and eight runner outlets
CN104972636A (en) * 2015-05-28 2015-10-14 保定东禾塑业有限公司 Profile flow divider

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310539A (en) * 2011-08-26 2012-01-11 张家港市杰达机械制造有限公司 Extrusion die of plastic pipe production equipment with one runner inlet and eight runner outlets
CN104972636A (en) * 2015-05-28 2015-10-14 保定东禾塑业有限公司 Profile flow divider
CN104972636B (en) * 2015-05-28 2017-09-12 蒙城县欣瑞特建材有限公司 A kind of section bar current divider

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120627

Termination date: 20140826

EXPY Termination of patent right or utility model