CN203751018U - Hot extrusion die with improved flow choking structure of lower die - Google Patents

Hot extrusion die with improved flow choking structure of lower die Download PDF

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Publication number
CN203751018U
CN203751018U CN201320891710.9U CN201320891710U CN203751018U CN 203751018 U CN203751018 U CN 203751018U CN 201320891710 U CN201320891710 U CN 201320891710U CN 203751018 U CN203751018 U CN 203751018U
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China
Prior art keywords
die
counterdie
seam
flow
patrix
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Active
Application number
CN201320891710.9U
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Chinese (zh)
Inventor
涂季冰
李展志
吕传锋
高爱林
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.)
Dingmg New Material Technology Co.,Ltd.
Original Assignee
Giant Light Metal Technology Kunshan Co Ltd
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Publication date
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Priority to CN201320891710.9U priority Critical patent/CN203751018U/en
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Abstract

The utility model discloses a hot extrusion die with an improved flow choking structure of a lower die. The hot extrusion die comprises an upper die and a lower die which are stacked and connected together in sequence, wherein a flow guide plate is arranged at a feeding end of the upper die; a plurality of bridge locations are formed in the flow guide plate; flow dividing holes are formed between the bridge locations; a core head is arranged at a discharging end of the upper die; a welding chamber, a forming hole and a discharging hole, which are communicated, are sequentially formed from a feeding end to a discharging end of the lower die; the welding chamber is communicated with the flow dividing holes of the upper die; the core head of the upper die is inserted into the forming hole of the lower die; a circle of spiral structures with gradually-reduced height are arranged at the bottom of the welding chamber of the lower die. Welding lines on the surface of the product made of the material and formed by the forming hole are slight and even disappear; the slight welding lines also extend in spiral curves, so that the hot extrusion die is high in overall strength, high in surface accuracy and small in size error, cannot be cracked and damaged easily when being bent, subjected to cold drawing and stretched.

Description

The improved hot-extrusion mold of counterdie reducing-flow structure
Technical field
The utility model relates to a kind of extrusion die, particularly the improved hot-extrusion mold of a kind of counterdie reducing-flow structure.
Background technology
Various product mouldings are all realized by hot-extrusion mold, general hot-extrusion mold is made up of upper die and lower die, patrix is provided with deflector and core print, deflector is provided with bridge location, material enters in mould after the tap hole between each bridge location is shunted, then flow into seam chamber, enter conflux behind seam chamber, and then enter and in the molding space being formed by core print and forming hole, carry out extrusion modling, finally discharge from discharge opening, common bottom surface, seam chamber is all annular plane structure at present, material enters seam chamber along tap hole, material enters moulding in forming hole after the indoor conflux of seam, but because bottom surface, seam chamber is plane, material is little in seam indoor moveable amount, material in each tap hole is difficult to good seam, the product surface of moulding will produce linear pattern seam line along its length, so just affect the intensity of product, product in use easily occurs that cracking damages.
Utility model content
In order to overcome above-mentioned defect, the utility model provides a kind of counterdie reducing-flow structure improved hot-extrusion mold, the improved hot-extrusion mold of this counterdie reducing-flow structure is simple in structure, material is at the indoor formation eddy flow of seam, on product, seam line slightly even disappears, and has improved intensity and the surface accuracy of product.
The utility model for the technical scheme that solves its technical problem and adopt is: the improved hot-extrusion mold of a kind of counterdie reducing-flow structure, comprise can before and after the upper die and lower die that link together of stack, patrix feed end is provided with deflector, deflector is provided with some bridge locations, between each bridge location, form tap hole, the discharge end of patrix is provided with core print, counterdie is provided with the seam chamber of connection successively to discharge end from feed end, forming hole and discharge opening, described seam chamber is communicated with the tap hole of patrix, the core print of patrix is inserted in the forming hole of counterdie, bottom surface, described counterdie seam chamber is provided with the helical structure that a circle axial height reduces gradually.
As further improvement of the utility model, described helical structure is a circle retaining wall that is surrounded on forming hole on bottom surface, seam chamber, and this retaining wall along counterdie axial height direction twist.
As further improvement of the utility model, described helical structure is bottom surface, whole seam chamber.
As further improvement of the utility model, the seamed edge of described bridge location is equipped with fillet.
The beneficial effects of the utility model are: the bottom surface, seam chamber of counterdie is designed to the spiral-shaped structure that axial height reduces gradually by the utility model, material enters behind seam chamber from tap hole, form eddy flow in the indoor meeting of seam, make the indoor abundant seam of material of inflow seam in each tap hole, the product surface seam line of material after forming hole moulding slightly even disappears, the mode that slight seam line is also helical curve is extended, its bulk strength is high, damage not easy to crack in the time of bending, cold-drawn and stretching, and product surface precision is high, and scale error is little.
Brief description of the drawings
Fig. 1 is the utility model structural principle front view;
Fig. 2 is the utility model structural principle top view;
Fig. 3 be in Fig. 2 seam chamber from A place the deployed condition schematic diagram to B place.
Detailed description of the invention
Embodiment: the improved hot-extrusion mold of a kind of counterdie reducing-flow structure, comprise can before and after the stack patrix 1 and the counterdie 2 that link together, patrix 1 feed end is provided with deflector, deflector is provided with some bridge locations 3, between each bridge location, form tap hole 4, the discharge end of patrix 1 is provided with core print 5, counterdie 2 is provided with the seam chamber 6 of connection successively to discharge end from feed end, forming hole 7 and discharge opening 8, described seam chamber 6 is communicated with the tap hole 4 of patrix 1, the core print 5 of patrix 1 is inserted in the forming hole 7 of counterdie 2, 6 bottom surfaces, described counterdie 2 seam chamber are provided with the helical structure that a circle axial height reduces gradually, by helical structure being set on 6 inner bottom surfaces of seam chamber, make the material production High Rotation Speed in tap hole 4 enters seam chamber 6, make material interior abundant fusion in seam chamber 6, farthest seam seam is even eliminated in reduction, even if there is slight seam seam, it is also state distribution in the shape of a spiral on product length, guarantee product strength is high, product surface quality is good, product mismachining tolerance is little.
Described helical structure is a circle retaining wall that is surrounded on forming hole 7 on 6 bottom surfaces, seam chamber, this retaining wall along counterdie 2 axial height directions twist, in the passage of material between back-up ring and 6 bottom surfaces, seam chamber, flow, cover back-up ring part simultaneously and flow into forming hole 7, and the material flowing in forming hole 7 is still rotational flow state, can at utmost reduce so even to eliminate seam seam.
Described helical structure is 6 bottom surfaces, whole seam chamber, and material enters behind seam chamber 6, carries out moulding along flowing into forming hole 7 after the helical structure fast rotational of 6 bottom surfaces, seam chamber, ensures material interior abundant fusion in seam chamber 6.
The seamed edge of described bridge location is equipped with fillet.

Claims (4)

1. the improved hot-extrusion mold of counterdie reducing-flow structure, comprise can before and after the stack patrix (1) and the counterdie (2) that link together, patrix (1) feed end is provided with deflector, deflector is provided with some bridge locations (3), between each bridge location, form tap hole (4), the discharge end of patrix (1) is provided with core print (5), counterdie (2) is provided with the seam chamber (6) of connection successively to discharge end from feed end, forming hole (7) and discharge opening (8), described seam chamber (6) is communicated with the tap hole (4) of patrix (1), the core print (5) of patrix (1) is inserted in the forming hole (7) of counterdie (2), it is characterized in that: bottom surface, described counterdie (2) seam chamber (6) is provided with the helical structure that a circle axial height reduces gradually.
2. the improved hot-extrusion mold of counterdie reducing-flow structure according to claim 1, it is characterized in that: described helical structure is a circle retaining wall that is surrounded on forming hole (7) on bottom surface, seam chamber (6), and this retaining wall along counterdie (2) axial height direction twist.
3. the improved hot-extrusion mold of counterdie reducing-flow structure according to claim 1, is characterized in that: described helical structure is bottom surface, whole seam chamber (6).
4. the improved hot-extrusion mold of counterdie reducing-flow structure according to claim 1, is characterized in that: the seamed edge of described bridge location is equipped with fillet.
CN201320891710.9U 2013-12-31 2013-12-31 Hot extrusion die with improved flow choking structure of lower die Active CN203751018U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320891710.9U CN203751018U (en) 2013-12-31 2013-12-31 Hot extrusion die with improved flow choking structure of lower die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320891710.9U CN203751018U (en) 2013-12-31 2013-12-31 Hot extrusion die with improved flow choking structure of lower die

Publications (1)

Publication Number Publication Date
CN203751018U true CN203751018U (en) 2014-08-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320891710.9U Active CN203751018U (en) 2013-12-31 2013-12-31 Hot extrusion die with improved flow choking structure of lower die

Country Status (1)

Country Link
CN (1) CN203751018U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741405A (en) * 2013-12-31 2015-07-01 昆山捷安特轻合金科技有限公司 Hot extrusion die with improved lower die choke flow structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741405A (en) * 2013-12-31 2015-07-01 昆山捷安特轻合金科技有限公司 Hot extrusion die with improved lower die choke flow structure

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 215300 No. 188 Nanhe Road, Kunshan Development Zone, Suzhou City, Jiangsu Province

Patentee after: JEANT LIGHT ALLOY TECHNOLOGY (KUNSHAN) CO., LTD.

Address before: 215300 No. 188 Nanhe Road, Kunshan Development Zone, Suzhou City, Jiangsu Province

Patentee before: Giant Light Metal Technology (Kunshan) Co., Ltd.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20210401

Address after: 215000 No.118, Pengxi South Road, Kunshan Development Zone, Suzhou City, Jiangsu Province

Patentee after: D.MAG (KUNSHAN) NEW MATERIAL TECHNOLOGY Co.,Ltd.

Address before: 215300 No. 188 Nanhe Road, Kunshan Development Zone, Suzhou City, Jiangsu Province

Patentee before: GIANT LIGHT METAL TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: 215000 No.118, Pengxi South Road, Kunshan Development Zone, Suzhou City, Jiangsu Province

Patentee after: Dingmg New Material Technology Co.,Ltd.

Address before: 215000 No.118, Pengxi South Road, Kunshan Development Zone, Suzhou City, Jiangsu Province

Patentee before: D.MAG (KUNSHAN) NEW MATERIAL TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder