CN1663779A - Extrusion-die pressing precise forming method and apparatus therefor - Google Patents
Extrusion-die pressing precise forming method and apparatus therefor Download PDFInfo
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- CN1663779A CN1663779A CN 200510033384 CN200510033384A CN1663779A CN 1663779 A CN1663779 A CN 1663779A CN 200510033384 CN200510033384 CN 200510033384 CN 200510033384 A CN200510033384 A CN 200510033384A CN 1663779 A CN1663779 A CN 1663779A
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Abstract
The invention relates to a squeeze-mould press precise forming method and the equipment. The said method comprises the raw material melting plastification through squeeze machine, the precise quantitative cut of the base, the linear to-and-fro moving device of the receiving base send it to the mould chamber, and then get the final product through the punch device. The said equipment is composed of the squeeze and cut devices on the base frame, the mould press device, the base receiving and transporting device. Because the mould forming time superposes the time of base squeeze, so the circle period is short. As the cut material control is precise, so the cutting amount is even. The base material press is undergoing in low temperature so as to realize the precise forming and to reduce the energetic consumption.
Description
Technical field
The present invention relates to a kind of extruding-die pressing precise forming method and equipment, the present invention mainly is at some have the preparation method of symmetric shape goods and the improvement of equipment thereof in the Polymer Processing.
Background technology
In the prior art, the preparation method of most these based articles adopts injection mo(u)lding, promptly utilizes injector that raw material is mixed, fusion plastification, quantitatively is filled in the mould, through associative operations such as pressurize coolings, obtains final finished.
The processing method of injection mo(u)lding is higher to the structural requirement of mould, and cast gate, runner and cooling system all directly influence the quality of end article.To the control of mold filling process, holding pressure control, goods eject that operation such as control is same to be required very highly, these all can directly influence product quality.The continuous mold filling that repeats and since controlled condition and operating process can not be strict identical, thereby cannot say for sure to demonstrate,prove the precision of accurate goods, the promptly difficult precise forming of realizing.In addition, owing to after filling, pressurize and these processes of cooling are arranged, so the cycle is longer; Heating repeatedly, fusion be refrigerated product again at last, and energy consumption is very big undoubtedly.
Summary of the invention
The objective of the invention is to avoid some technological deficiencies this base polymer tradition processing, a kind of method that can realize precise forming is provided, thereby cuts down the consumption of energy, reduce cost from method and apparatus.
The present invention also aims to provide the equipment of realizing described method.
Of the present invention extruding-die pressing precise forming method comprises: raw material is through the extruder fusion plastification, extrude blank by die head, blank is through the accurate quantification cutting of blank parts, by connect fortune blank straight reciprocating motion apparatus with its connect fortune and insert in the die cavity, after the compacting of punching mechanism obtains final pressing.
The time of goods compression moulding and the blank of next goods find time overlapping, realize the short cycle period moulding of goods.
The equipment of realizing described method is by being fixed on that blank on the underframe is extruded and cutter sweep, molding device, blank connect shipping unit and constitute, wherein
Described blank is extruded and cutter sweep is made of hopper, extruder, extrusion die, blank bar device, be positioned at the left end of equipment, hopper is the part of extruder, and extrusion die is fixed on the extruder, the blank rod is installed in the extrusion die, by the cut-out blank that moves up and down of blank rod;
Described molding device is made of the upper die and lower die and the finished bin of stamping system, pressing die, be positioned at the middle part of equipment, patrix is fixed on the stamping system, counterdie is fixed on the end that blank connects shipping unit, can connect shipping unit with blank and do linear reciprocating motion between cut position of blank and mold pressing position;
Described blank connects shipping unit and connects shipping unit by servo drive system and blank and constitute, be positioned at the right-hand member of equipment, wherein blank connects shipping unit and can be driven by servo drive system, and drive link can drive blank and do linear reciprocating motion between cut position of blank and mold pressing position.
Blank connects shipping unit and adopts machinery, hydraulic pressure or electric type servo-actuating device.
The counterdie of diel is fixed on the end that blank connects shipping unit, does straight reciprocating motion thereby counterdie can connect shipping unit with blank; When blank cut, counterdie was in and connects fortune blank position and be used to connect the fortune blank, and during punching press, counterdie cooperates extruded article with patrix under the punching press effect.
Stamping system employing hydraulic pressure reciprocating drive mechanism or machinery, electrical equipment, air pressure class reciprocating drive mechanism.
The mold cavity configuration of pressing mold can adhere to the finished product of compacting in the pressing mold patrix, and when the related goods of pressing mold patrix rose to the precalculated position, the flexible of oil cylinder control push rod ejected die cavity with pressing.
The present invention's advantage compared with prior art is as follows: (1) precise forming.Because the present invention has adopted the method for mold pressing, saved the complex process of injection mo(u)lding, make the processing method of injection mo(u)lding to the structural requirement of mould, cast gate, runner and cooling system etc. are to the influence of quality of item, and these problems that influence the product properties quality such as control that eject to the control of mold filling process, holding pressure control, goods no longer occur in the injection mo(u)lding.In this method as long as simply control the blank cutting quantity well, the mould in the pressing mold is adjusted in design and installation, the correct simultaneously position of blank in mould of placing, the goods that suppress requirement accurately that can repeat, and duplicate injection in the injection molding forming method can not occur the time because the improper defective problem of goods that causes of inhomogeneous or some other controlling unit of loading.
(2) moulding is continuous.Be to adopt the method for extruding continuously to prepare blank among the present invention, the control by sequence of movement has realized that continuous and quantitative extrudes and continuous pressing mold, has promptly realized quantitatively extruding in the forming process, the parallel work-flow of pressing mold action.The pressurizes, insulation, cooling etc. of having saved injection process pause, series process consuming time, make processing have continuity.
(3) cycle is short.The present invention adopts the method for extruding continuously to prepare blank, adopts the design concept of parallel work-flow to realize that continuous and quantitative extrudes and continuous pressing mold.Owing to pause, time-consuming procedure such as the pressurize of having saved injection process, insulation, coolings, molding cycle is shortened greatly.
(4) energy consumption is low, saves cost.Blank in cutting, connect and all be in elastomeric state in fortune, the pressing process always, make the energy dissipation minimizing, and pressing mold is easier, the pressing mold power of the machine that can reduce pressure has reduced cost.
(5) raw material availability height.Adopted direct punching press blank to finish the method for product molding, used cast gate, runner, running channel etc. melt the body conveyance conduit when having avoided injection mo(u)lding, have so just saved material greatly, have improved raw material availability.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 extrudes for blank, and the schematic diagram that is quantitatively cut at the die head place.
Fig. 3 rests on the schematic diagram in the die cavity for blank is stamped into goods moments.
Among the figure: the 1-extruder, the 2-extrusion die, 3-extrudes blank, 4-blank rod, the 5-blank connects shipping unit, the 6-servo drive system, the 7-stamping system, 8-pressing die patrix, 9-pressing die counterdie, the 10-finished bin, 11-hopper, 12-barrel, 13-blank rod dashes and draws control system, 14-platen, 15-goods, 16-drives the pull bar of counterdie motion, 17-underframe
The specific embodiment
As shown in Figure 1, 2, 3, equipment is extruded by blank and cutter sweep, molding device, blank connect shipping unit three parts and form, and all devices are fixed on the underframe 17, wherein
Blank is extruded and cutter sweep: be made of hopper 11, extruder 1, extrusion die 2, blank bar device 4, be positioned at the left position of whole former.Hopper 11 is parts of extruder, and extrusion die 2 is fixed on the extruder 1, and blank rod 4 is installed in the extrusion die 2, cuts off blank 3 by moving up and down of blank rod 4.
Molding device: patrix 8, counterdie 9 and finished bin 10 by stamping system 7, pressing die constitute, and are positioned at the medium position of whole former.Patrix 8 is fixed on the stamping system 7, and counterdie 9 is fixed on the end that blank connects shipping unit 5, can connect shipping unit with blank and do linear reciprocating motion between cut position of blank and mold pressing position.
Blank connects shipping unit: connect shipping unit 5 by servo drive system 6 and blank and form, be positioned at the low order end of former.Wherein blank connects shipping unit 5 and can be driven by servo drive system 6, and drive link can drive blank and do linear reciprocating motion between cut position of blank and mold pressing position.
To produce optical disk substrate is example, and it is raw material that this product adopts PC (Merlon), and the course of work of its preparation is as follows:
(1) preparation blank
Material through even mixing, fusion plastification, is extruded as blank 3 by extrusion die 2 in extruder 1.
(2) quantitative cutting blank
When the blank bar device 4 in the extrusion die is raised,, thereby quantitatively cut out the required blank of product molding 3 with the overstocked blank outlet of the blank of extruding to special shape.Owing to be evenly to extrude continuously, can by control or adjust the actuation time of blank rod and the blank amount is controlled in the position what.
(3) connect fortune blank and insert die cavity
The end that blank connects shipping unit 5 is provided with die cavity 9, and servo-actuating device 6 drives blank and connects the die cavity position that shipping unit 5 accurately transports blank and insert pressing mold 8.
(4) molded blank becomes goods
The punching press effect of stamping system 7 is pressed into pressing mold 8 in the die cavity that blank connects the shipping unit end, and then blank is pressed into finished product.
(5) pushing-off product begins next circulation
The finished product that mold pressing obtains adheres in the die cavity of pressing mold 8, together is thus lifted to the initial position of punching press under the effect of stamping system together with pressing mold, and herein, because the effect that ejects of push rod, goods are ejected die cavity and fall on the conveyer belt of finished bin 10 and seen off.Blank connects shipping unit 5 and be reset to the state that connects the fortune blank under the effect of driving mechanism 6 simultaneously, begins the fortune that connects of blank of following one-period.
Claims (7)
1, a kind of die pressing precise forming method of extruding, it is characterized in that raw material is through the extruder fusion plastification, extrude blank by die head, blank is through the accurate quantification cutting of blank parts, by connect fortune blank straight reciprocating motion apparatus with its connect fortune and insert in the die cavity, after the compacting of punching mechanism obtains final pressing.
2, method according to claim 1, the blank that it is characterized in that time of goods compression moulding and next goods finds time overlapping, realizes the short cycle period moulding of goods.
3, a kind of equipment of realizing the described method of claim 1 is characterized in that by being fixed on that blank on the underframe is extruded and cutter sweep, molding device, blank connect shipping unit and constitute, wherein
Described blank is extruded and cutter sweep is made of hopper, extruder, extrusion die, blank bar device, be positioned at the left end of equipment, hopper is the part of extruder, and extrusion die is fixed on the extruder, the blank rod is installed in the extrusion die, by the cut-out blank that moves up and down of blank rod;
Described molding device is made of the upper die and lower die and the finished bin of stamping system, pressing die, be positioned at the middle part of equipment, patrix is fixed on the stamping system, counterdie is fixed on the end that blank connects shipping unit, can connect shipping unit with blank and do linear reciprocating motion between cut position of blank and mold pressing position;
Described blank connects shipping unit and connects shipping unit by servo drive system and blank and constitute, be positioned at the right-hand member of equipment, wherein blank connects shipping unit and can be driven by servo drive system, and drive link can drive blank and do linear reciprocating motion between cut position of blank and mold pressing position.
4, equipment according to claim 3 is characterized in that blank connects shipping unit and adopts machinery, hydraulic pressure or electric type servo-actuating device.
5, equipment according to claim 3 is characterized in that the counterdie of diel is fixed on the end that blank connects shipping unit, does straight reciprocating motion thereby counterdie can connect shipping unit with blank; When blank cut, counterdie was in and connects fortune blank position and be used to connect the fortune blank, and during punching press, counterdie cooperates extruded article with patrix under the punching press effect.
6, equipment according to claim 3 is characterized in that stamping system employing hydraulic pressure reciprocating drive mechanism or machinery, electrical equipment, air pressure class reciprocating drive mechanism.
7, equipment according to claim 3 is characterized in that the mold cavity configuration of pressing mold can stick to the finished product of compacting in the pressing mold patrix, and when the related goods of pressing mold patrix rose to the precalculated position, the flexible of oil cylinder control push rod ejected die cavity with pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100333848A CN100493893C (en) | 2005-03-08 | 2005-03-08 | Extrusion-die pressing precise forming method and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100333848A CN100493893C (en) | 2005-03-08 | 2005-03-08 | Extrusion-die pressing precise forming method and apparatus therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1663779A true CN1663779A (en) | 2005-09-07 |
| CN100493893C CN100493893C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100333848A Expired - Fee Related CN100493893C (en) | 2005-03-08 | 2005-03-08 | Extrusion-die pressing precise forming method and apparatus therefor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254651B (en) * | 2007-02-28 | 2010-06-16 | 山东天野塑化有限公司 | Production method of compression moulding forming polyolefin pipe fitting |
| CN102361115A (en) * | 2011-09-30 | 2012-02-22 | 深圳市大富科技股份有限公司 | Cavity filter and production method thereof |
| CN106915036A (en) * | 2017-03-20 | 2017-07-04 | 北京化工大学 | The molded device and method of polymer melt differential Graphene |
| CN108582621A (en) * | 2018-06-01 | 2018-09-28 | 华南理工大学 | Product of rubber and plastic compression molding method and apparatus based on two dimension paving base |
-
2005
- 2005-03-08 CN CNB2005100333848A patent/CN100493893C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254651B (en) * | 2007-02-28 | 2010-06-16 | 山东天野塑化有限公司 | Production method of compression moulding forming polyolefin pipe fitting |
| CN102361115A (en) * | 2011-09-30 | 2012-02-22 | 深圳市大富科技股份有限公司 | Cavity filter and production method thereof |
| CN102361115B (en) * | 2011-09-30 | 2014-07-30 | 深圳市大富科技股份有限公司 | Production method of cavity filter |
| CN106915036A (en) * | 2017-03-20 | 2017-07-04 | 北京化工大学 | The molded device and method of polymer melt differential Graphene |
| CN108582621A (en) * | 2018-06-01 | 2018-09-28 | 华南理工大学 | Product of rubber and plastic compression molding method and apparatus based on two dimension paving base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100493893C (en) | 2009-06-03 |
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Granted publication date: 20090603 Termination date: 20130308 |