CN110153213A - A kind of flange mold of automatic discharging and the method for processing flange with it - Google Patents
A kind of flange mold of automatic discharging and the method for processing flange with it Download PDFInfo
- Publication number
- CN110153213A CN110153213A CN201910397736.XA CN201910397736A CN110153213A CN 110153213 A CN110153213 A CN 110153213A CN 201910397736 A CN201910397736 A CN 201910397736A CN 110153213 A CN110153213 A CN 110153213A
- Authority
- CN
- China
- Prior art keywords
- core bar
- fixed plate
- flange
- mandril
- lower die
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/20—Making uncoated products by backward extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C26/00—Rams or plungers; Discs therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
Abstract
A kind of flange mold of automatic discharging, including upper die and lower die, core bar fixed plate is installed in lower die, core bar is installed, upper mold squeezes the flange blank being placed in lower die under hydraulic press effect and forms flange blank, and core bar slide outside is arranged with gasket ring in core bar fixed plate, mandril is worn through the sliding of core bar fixed plate, wherein one end of mandril is fixed in core bar fixed plate, and mandril fixed plate is fixed on the other end of mandril, is connected with liftout attachment in mandril fixed plate.The present invention preferably resolves flange production high rejection rate, the problem that utilization rate of raw materials is low, production efficiency is low, enhance I industry competition advantage, facilitation is played to China's shipbuilding industry and horizontal the further increasing of ocean engineering industry the relevant technologies, and is laid the foundation for further expansion international market.
Description
Technical field
The present invention relates to machining manufacture technical fields, a kind of flange mold more particularly, to automatic discharging and use it
The method for processing flange.
Background technique
Currently, the corronil flange product of domestic major metal pipe fitting manufacturer mostly uses hot extrusion molding technique,
Concrete technology is positive extrusion forming and anti-extrusion, and metal flow direction is consistent with the direction of extrusion when wherein forward extrusion forms,
It is big when frictional force and resistance of deformation are compared with anti-extrusion, therefore required briquetting pressure is relatively large when forward extrusion formed flanges, mainly
Suitable for deformation drag it is lesser small dimension flange formation；Metal flow direction and the direction of extrusion when anti-extrusion on the contrary,
Pressure is relatively small when anti-extrusion specification flange of the same race, is suitable for big specification flange formation.Forward extrusion formed flanges at present
In discharge process, discharging is carried out mainly by human assistance, and molded blank is easy locking on core bar, needs manually to hammer into shape repeatedly
Material is beaten back, part blank is caused to be scrapped, and easy damaged mold, has not only seriously affected production efficiency, more increase production cost.State
It there are no relevant report outside.
Summary of the invention
The purpose of the present invention is causing flange production efficiency low to solve existing flange production mould, high labor cost is asked
Topic, the method that a kind of flange mold of automatic discharging is provided and processes flange with it.
The deficiency of the present invention to solve above-mentioned technical problem, used technical solution is:
A kind of flange mold of automatic discharging, including upper die and lower die, upper mold are connect with hydraulic press, and through-hole is offered in lower die,
Upper mold is threaded through in through-hole far from one end of hydraulic press, and the one end of lower die far from upper mold seals through-hole, core by core bar fixed plate
Core bar is installed in bar fixed plate, upper mold offers centre bore far from one end of hydraulic press, core bar far from core bar fixed plate one
End is threaded through in the centre bore of upper mold, and the outer diameter of core bar is less than centre bore internal diameter, upper mold squeezes under hydraulic press effect be placed under
Flange blank in mould forms flange blank, and the core bar slide outside is arranged with gasket ring, and gasket ring is supported on core bar fixed plate
On, the internal diameter of gasket ring is equal to the outer diameter of core bar, and the outer diameter of gasket ring is equal to the internal diameter of lower die through-hole, wears through the sliding of core bar fixed plate
Equipped with several mandrils being circularly and evenly distributed, wherein one end of mandril is fixed in core bar fixed plate, on the other end of mandril
It is fixed with mandril fixed plate, is connected with liftout attachment in mandril fixed plate.
The core bar is machined with external screw thread on one end of core bar fixed plate, is threaded in core bar fixed plate
Hole, the mode that core bar is connected through a screw thread are fixed in core bar fixed plate.
The mode that the mandril is connected through a screw thread is fixed in mandril fixed plate.
A method of flange being processed using a kind of flange mold of automatic discharging, is included the following steps:
Step 1: mold is installed: it takes the flange mold that core bar is connected through a screw thread mode and is fixed in core bar fixed plate,
Mandril is connected through a screw thread mode and is fixed in mandril fixed plate, and mandril fixed plate is connect with hydraulic press liftout attachment, fixes
Lower die is threaded through on mandril after core bar and mandril, then gasket ring is set on core bar, by upper mold fixed equipment in hydraulic press
In hold-down devices, lower die is fixed on hydraulic press operating platform；
Step 2: preparing before compacting: by required specification corronil heavy wall materials in the tube, length is cut into pipeline section on sawing machine as required, often
Kind specification flange corresponds to flange blank of the certain size as molding copper-nickel alloy flange pipes, heats to flange blank,
The flange blank heated can continuously release inductor, and the blank heated taking-up is set on core bar；
Step 3: compacting: hydraulic press hold-down devices control upper mold downlink, and the lower die on workbench is fixed, and upper mold is pressed downward
System, the molding of reverse extrusion blank；
Step 4: automatic discharging: hydraulic press hold-down devices control upper mold uplink, and upper mold is lifted, and the ejection of hydraulic press liftout attachment pushes away
Dynamic mandril fixed plate moves upwards, and mandril fixed plate drives mandril that gasket ring is pushed to move upwards to push away molding flange blank
Lower die die cavity is detached from from core bar out.The beneficial effects of the present invention are: improving the molding of flange blank using the mold in the present invention
Efficiency and yield rate reduce cost of labor, carry out by design feature, existing equipment, the raw material property etc. to flange
Comprehensive study changes existing molding mode, designs anti-extrusion mold, the easy locking of blank is on core bar when for discharging
The method of flange formation blank automatic ejection die cavity is realized automatic discharging using ejection tooling, greatly improves flange production by problem
The production efficiency of product reduces production energy consumption.The present invention preferably resolve flange production high rejection rate, utilization rate of raw materials it is low,
The low problem of production efficiency, enhance I industry competition advantage, it is horizontal to China's shipbuilding industry and ocean engineering industry the relevant technologies
Further increase and play facilitation, and lay the foundation for further expansion international market.
Using flanged fittings of the present invention can the flange product of automatic discharging Mold Making reached every technology and referred to
Target requirement, single-piece flange formation save discharge time about 20s or more, and flange blank qualification rate improves about 10% or more；Using certainly
The forward extrusion flange mold of dynamic discharging, the utilization rate of raw materials of flange improve 5% or more on the basis of existing；One is reduced to unload
Expect operator, cooperate from 3~4 people before, becoming 2 people can be completed, and substantially increase production efficiency, reduce human cost.
Detailed description of the invention
Fig. 1 is copper-nickel alloy flange pipes structural schematic diagram.
Fig. 2 is backward extrusion flange mold structure diagram in the present invention.
Fig. 3 is the top view of core bar fixed plate in the present invention.
Fig. 4 is the side view of core bar fixed plate in the present invention.
Fig. 5 is core bar structure schematic diagram in the present invention.
Fig. 6 is the top view of mandril fixed plate in the present invention.
Fig. 7 is the side view of mandril fixed plate in the present invention.
Fig. 8 is corronil flange backward extrusion pressing process original state schematic diagram in the present invention.
Fig. 9 is corronil flange backward extrusion pressing process completed state schematic diagram in the present invention.
Diagram label: 1, upper mold, 2, flange blank, 3, lower die, 4, gasket ring, 5, core bar, 6, core bar fixed plate, 7, mandril；
8, mandril fixed plate, 9, liftout attachment.
Specific embodiment
As shown in the figure, specific embodiment is as follows:
A kind of flange mold of automatic discharging, including upper mold 1 and lower die 3, upper mold 1 are connect with hydraulic press, and hydraulic press is using conventional
Equipment knows how upper mold is mounted on hydraulic press to those skilled in the art, for example is mounted on oil pressure
It on the sliding block of machine, therefore is not described in detail, through-hole is offered in lower die 3, upper mold 1 is threaded through through-hole far from one end of hydraulic press
Interior, the one end of lower die 3 far from upper mold seals through-hole by core bar fixed plate 6, and the through-hole after sealing forms die cavity, core bar fixed plate
Core bar 5 is installed, core bar 5 is machined with external screw thread on one end of core bar fixed plate 6, is machined with spiral shell in core bar fixed plate 6 on 6
Pit, the mode that core bar 5 is connected through a screw thread are fixed in core bar fixed plate 6, during upper mold 1 is offered far from one end of hydraulic press
Heart hole, core bar 5 are threaded through in the centre bore of upper mold 1 far from one end of core bar fixed plate 6, and the outer diameter of core bar 5 is less than in centre bore
Diameter, upper mold 1 squeeze the flange blank 2a that is placed in lower die under hydraulic press effect and form flange blank 2, outside the core bar 5
Sliding sleeve is equipped with gasket ring 4, and gasket ring 4 is supported in core bar fixed plate 6, and the internal diameter of gasket ring 4 is equal to the outer diameter of core bar, gasket ring 4 it is outer
Diameter is equal to the internal diameter of lower die through-hole, is equipped with several mandrils 7 being circularly and evenly distributed, mandril 7 through the sliding of core bar fixed plate
The mode that is connected through a screw thread of wherein one end be fixed in mandril fixed plate, be fixed with mandril on the other end of mandril 7 and fix
Plate 8 is connected with liftout attachment 9 in mandril fixed plate 8.
A method of flange being processed using a kind of flange mold of automatic discharging, is included the following steps:
Step 1: mold is installed: it takes the flange mold that core bar is connected through a screw thread mode and is fixed in core bar fixed plate,
Mandril is connected through a screw thread mode and is fixed in mandril fixed plate, and mandril fixed plate is connect with hydraulic press liftout attachment, fixes
Lower die is threaded through on mandril after core bar and mandril, then gasket ring is set on core bar, by upper mold fixed equipment in hydraulic press
In hold-down devices, lower die is fixed on hydraulic press operating platform；
Step 2: preparing before compacting: by required specification corronil heavy wall materials in the tube, length is cut into pipeline section on sawing machine as required, often
Kind of specification flange correspond to certain size as the flange blank for forming copper-nickel alloy flange pipes, with flange specification for DN50~
For DN200, flange blank heating heating time 0.5~1 minute, is added to 900 DEG C~980 DEG C with Medium Frequency Induction Heating Furnace
The good flange blank of heat can continuously release inductor, and the blank heated taking-up is set on core bar；
Step 3: compacting: hydraulic press hold-down devices control upper mold downlink, and the lower die on workbench is fixed, and upper mold is pressed downward
System, the molding of reverse extrusion blank；
Step 4: automatic discharging: hydraulic press hold-down devices control upper mold uplink, and upper mold is lifted, and the ejection of hydraulic press liftout attachment pushes away
Dynamic mandril fixed plate moves upwards, and mandril fixed plate drives mandril that gasket ring is pushed to move upwards to push away molding flange blank
Lower die die cavity is detached from from core bar out.
Embodiment 1:
The present invention has been applied to the flange of DN80 specification.Using the backward extrusion flange mold of automatic discharging, DN80 flange single-piece is flat
Equal molding time is reduced to 65s from 85s, and shaping efficiency improves 24%, and flange blank qualification rate improves 10%, waste product, substandard products
Generation rate significantly reduces；DN80 flange single-piece billet weight is kept to present 1.54KG, stock utilization from pervious 1.64KG
Improve 6%.
Embodiment 2:
The present invention has been applied to the flange of DN100 specification.Using the backward extrusion flange mold of automatic discharging, DN100 flange single-piece
Average molding time is reduced to 75s from 95s, and shaping efficiency improves 21%, and flange blank qualification rate improves 15%, waste product, secondary
Product generation rate significantly reduces；DN100 flange single-piece billet weight is kept to present 2.05KG, material use from pervious 2.2KG
Rate improves 7%.
Technical solution cited by the present invention and embodiment and non-limiting, with technical solution cited by the present invention and
Embodiment is equivalent or effect same approach is all in the range of the present invention is protected.
Claims (4)
1. a kind of flange mold of automatic discharging, including upper die and lower die, upper mold are connect with hydraulic press, offered in lower die logical
Hole, upper mold are threaded through in through-hole far from one end of hydraulic press, and the one end of lower die far from upper mold seals through-hole by core bar fixed plate,
Core bar is installed, upper mold offers centre bore far from one end of hydraulic press, and core bar is far from core bar fixed plate in core bar fixed plate
One end is threaded through in the centre bore of upper mold, and the outer diameter of core bar is less than centre bore internal diameter, and upper mold is squeezed under hydraulic press effect and is placed on
Flange blank in lower die forms flange blank, it is characterised in that: the core bar slide outside is arranged with gasket ring, gasket ring support
In core bar fixed plate, the internal diameter of gasket ring is equal to the outer diameter of core bar, and the outer diameter of gasket ring is equal to the internal diameter of lower die through-hole, runs through core bar
Fixed plate sliding is equipped with several mandrils being circularly and evenly distributed, and wherein one end of mandril is fixed in core bar fixed plate, top
It is fixed with mandril fixed plate on the other end of bar, is connected with liftout attachment in mandril fixed plate.
2. a kind of flange mold of automatic discharging according to claim 1, it is characterised in that: the core bar is close to core bar
It is machined with external screw thread on one end of fixed plate, hole is threaded in core bar fixed plate, the mode that core bar is connected through a screw thread is solid
It is scheduled in core bar fixed plate.
3. a kind of flange mold of automatic discharging according to claim 1, it is characterised in that: the mandril passes through screw thread
The mode of connection is fixed in mandril fixed plate.
4. a kind of method of the flange mold processing flange using a kind of automatic discharging described in claims 1 or 22 or 3, special
Sign is: including the following steps:
Step 1: mold is installed: it takes the flange mold that core bar is connected through a screw thread mode and is fixed in core bar fixed plate,
Mandril is connected through a screw thread mode and is fixed in mandril fixed plate, and mandril fixed plate is connect with hydraulic press liftout attachment, fixes
Lower die is threaded through on mandril after core bar and mandril, then gasket ring is set on core bar, by upper mold fixed equipment in hydraulic press
In hold-down devices, lower die is fixed on hydraulic press operating platform；
Step 2: preparing before compacting: by required specification corronil heavy wall materials in the tube, length is cut into pipeline section on sawing machine as required, often
Kind specification flange corresponds to flange blank of the certain size as molding copper-nickel alloy flange pipes, heats to flange blank,
The flange blank heated can continuously release inductor, and the blank heated taking-up is set on core bar；
Step 3: compacting: hydraulic press hold-down devices control upper mold downlink, and the lower die on workbench is fixed, and upper mold is pressed downward
System, the molding of reverse extrusion blank；
Step 4: automatic discharging: hydraulic press hold-down devices control upper mold uplink, and upper mold is lifted, and the ejection of hydraulic press liftout attachment pushes away
Dynamic mandril fixed plate moves upwards, and mandril fixed plate drives mandril that gasket ring is pushed to move upwards to push away molding flange blank
Lower die die cavity is detached from from core bar out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397736.XA CN110153213A (en) | 2019-05-14 | 2019-05-14 | A kind of flange mold of automatic discharging and the method for processing flange with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397736.XA CN110153213A (en) | 2019-05-14 | 2019-05-14 | A kind of flange mold of automatic discharging and the method for processing flange with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110153213A true CN110153213A (en) | 2019-08-23 |
Family
ID=67634430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910397736.XA Pending CN110153213A (en) | 2019-05-14 | 2019-05-14 | A kind of flange mold of automatic discharging and the method for processing flange with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110153213A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752635A (en) * | 2013-11-25 | 2014-04-30 | 重庆天之道科技发展有限公司 | Extrusion die rack with automatic stripping mechanism |
| CN106607469A (en) * | 2016-12-19 | 2017-05-03 | 河南平高电气股份有限公司 | Contact pedestal extrusion die and extrusion molding method thereof |
| CN107030201A (en) * | 2017-04-25 | 2017-08-11 | 中国船舶重工集团公司第七二五研究所 | A kind of forward extrusion flange can automatic discharging mould |
-
2019
- 2019-05-14 CN CN201910397736.XA patent/CN110153213A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752635A (en) * | 2013-11-25 | 2014-04-30 | 重庆天之道科技发展有限公司 | Extrusion die rack with automatic stripping mechanism |
| CN106607469A (en) * | 2016-12-19 | 2017-05-03 | 河南平高电气股份有限公司 | Contact pedestal extrusion die and extrusion molding method thereof |
| CN107030201A (en) * | 2017-04-25 | 2017-08-11 | 中国船舶重工集团公司第七二五研究所 | A kind of forward extrusion flange can automatic discharging mould |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |
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| RJ01 | Rejection of invention patent application after publication |