CN103991159B - Three-component mixing head for injection molding - Google Patents
Three-component mixing head for injection molding Download PDFInfo
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- CN103991159B CN103991159B CN201410200426.1A CN201410200426A CN103991159B CN 103991159 B CN103991159 B CN 103991159B CN 201410200426 A CN201410200426 A CN 201410200426A CN 103991159 B CN103991159 B CN 103991159B
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- mill base
- core block
- pol
- iso
- valve piston
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 230000010412 perfusion Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 4
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 239000007921 spray Substances 0.000 description 8
- 238000005187 foaming Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- -1 secretly cheated Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a three-component mixing head for injection molding. The mixing head comprises a pressure regulating core block and a small piston. The pressure regulating core block comprises a small piston push rod installing hole, a color paste feeding hole, a color paste discharging hole, an ISO feeding hole, an ISO discharging hole, a POL feeding hole, a POL discharging hole, a horizontal mixing and injecting zone and a mixture discharging. An included angle is formed between the color paste feeding hole and the horizontal mixing and injecting zone. The push rod of the small piston is provided with a first high pressure circulating groove, a second high pressure circulating groove and a color paste circulating groove, wherein the first high pressure circulating groove and the second high pressure circulating groove are symmetrically arranged, and the color paste circulating groove is located on the symmetrical center line of the first high pressure circulating groove and the second high pressure circulating groove. The push rod of the small piston is slidably mounted in the small piston push rod installing hole in the pressure regulating core block through clearance fit and can carry out linear reciprocating motion along the small piston push rod installing hole. The three-component mixing head has the following advantages: sufficient bumping of three components is realized, a good mixing effect is obtained; ISO and POL do not flow backward relative to the center hole of the small piston during pouring, the color paste injection center hole of the small piston does not have obstruction fault, production efficiency is improved, processing time and maintenance time are saved, and cost for spare parts is reduced.
Description
Technical field
The invention belongs to foaming frock technical field, relate to a kind of injection moulding three component mixing heads; Be specially adapted to the manufacture of steering wheel foaming.
Background technology
Foaming put forth effort to avoid deficient full, produce the technical task that the defect such as pore, dark hole is this area engineers and technicians' exploratory development always; Engineers and technicians' research and probe was mostly is in the past in material (chemical raw material) formula and the thinking on technical parameter.
The mixing head of foaming manufacture has two component mixing heads, three component mixing heads, four component mixing heads, six components mix first-class.As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, existing three component mixing heads comprise pressure regulation core block, valve piston; Pressure regulation core block have mill base input hole, mill base delivery outlet, ISO input hole, ISO delivery outlet, POL input hole, POL delivery outlet, batch mixing delivery outlet; Valve piston has 2 cycle of higher pressure grooves, 1 mill base circulating slot, 1 mill base spray centre bore.During cycle of higher pressure, mill base enters along pressure regulation core block mill base input hole, enters valve piston mill base circulating slot, then flows out from pressure regulation core block mill base delivery outlet; ISO enters along pressure regulation core block ISO input hole, enters valve piston cycle of higher pressure groove, then flows out from pressure regulation core block ISO delivery outlet; POL enters along pressure regulation core block POL input hole, enters valve piston cycle of higher pressure groove, then flows out from pressure regulation core block POL delivery outlet.During perfusion; ISO enters along pressure regulation core block ISO input hole, and corner enters horizontal mixed water injection district; POL enters along pressure regulation core block POL input hole, and corner enters horizontal mixed water injection district; Mill base enters along pressure regulation core block mill base input hole, then becomes horizontal-jet outflow to enter horizontal mixed water injection district through valve piston mill base injection centre bore corner; Three components to liquidate collision in horizontal mixed water injection district level; Then three components flow out from horizontal mixed water injection district center batch mixing delivery outlet.The shortcoming of this technology is: on the one hand, mill base enters along pressure regulation core block mill base input hole, spraying centre bore corner through valve piston mill base again becomes horizontal-jet to flow out, three components to liquidate collision in horizontal mixed water injection district level, mill base, ISO, POL fail to realize abundant collision, mixed effect is not good enough, and foaming is owed full, easily produced the defect such as pore, dark hole, and product percent defective is high; Secondly, mill base need spray centre bore through valve piston mill base and enter pressure regulation core block center batch mixing delivery outlet, easily produces pouring in down a chimney of the relative valve piston centre bore of ISO, POL during perfusion, and cause valve piston mill base to spray centre bore blocking, equipment failure rate is high, need often keep in repair; The third aspect, valve piston mill base sprays centre bore, and process for machining and manufacturing is complicated, easily produces stress central hot water supply system during quenching, and small piston rod portion intensity reduces.
Summary of the invention
The invention discloses a kind of injection moulding three component mixing heads, spray the outflow of centre bore corner to solve mill base in prior art through valve piston mill base, mill base, ISO, POL fail to realize abundant collision; Mixed effect is not good enough, and foaming is owed full, easily produces pore, secretly cheated, and product percent defective is high; Easily produce pouring in down a chimney of the relative valve piston centre bore of ISO, POL during perfusion, valve piston mill base sprays centre bore blocking, and equipment failure rate is high; Valve piston process for machining and manufacturing is complicated, easily produces stress and the problem such as concentrate during quenching.
The present invention includes pressure regulation core block, valve piston; Pressure regulation core block comprises valve piston push rod installing hole, mill base input hole, mill base delivery outlet, ISO input hole, ISO delivery outlet, POL input hole, POL delivery outlet, horizontal mixed water injection district, batch mixing delivery outlet; Between mill base input hole and horizontal mixed water injection district, there is angle; The push rod of valve piston have the first cycle of higher pressure groove, the second cycle of higher pressure groove, mill base circulating slot; First cycle of higher pressure groove, the second cycle of higher pressure groove are arranged symmetrically with; Mill base circulating slot is positioned in the first cycle of higher pressure groove, the second cycle of higher pressure groove symmetrical center line; The push rod slip matched in clearance of valve piston is arranged in the valve piston push rod installing hole on pressure regulation core block, and valve piston push rod can move along valve piston push rod installing hole linear reciprocation; When cycle of higher pressure, valve piston push rod moves inward (valve piston push rod is in position as shown in Figure 3), and the mill base input hole on pressure regulation core block, mill base delivery outlet are connected with the mill base circulating slot on valve piston; ISO input hole on pressure regulation core block, ISO delivery outlet are connected with the first cycle of higher pressure groove on valve piston; POL input hole on pressure regulation core block, POL delivery outlet are connected with the second cycle of higher pressure groove on valve piston; When pouring into, the outwards movement of valve piston push rod, valve piston push rod clearance sealing mill base delivery outlet, ISO delivery outlet, POL delivery outlet, mill base input hole, ISO input hole, POL input hole are connected with horizontal mixed water injection district, and mill base and ISO, POL collide at horizontal mixed water injection district angle oblique impact.
Mill base input hole on pressure regulation core block of the present invention and horizontal mixed water injection interval have angle and are greater than 30 °, are less than or equal to 90 °; Mill base and ISO, POL collide at horizontal mixed water injection district angle oblique impact.
Prioritization scheme of the present invention, the mill base input hole on pressure regulation core block and horizontal mixed water injection interval have angle 60 °, and mill base and ISO, POL collide at 60 °, horizontal mixed water injection district angle oblique impact.
During cycle of higher pressure, mill base enters along pressure regulation core block mill base input hole, enters valve piston mill base circulating slot, then flows out from pressure regulation core block mill base delivery outlet; ISO enters along pressure regulation core block ISO input hole, enters valve piston cycle of higher pressure groove, then flows out from pressure regulation core block ISO delivery outlet; POL enters along pressure regulation core block POL input hole, enters valve piston cycle of higher pressure groove, then flows out from pressure regulation core block POL delivery outlet.
During perfusion; ISO enters horizontal mixed water injection district along pressure regulation core block ISO input hole; POL enters horizontal mixed water injection district along pressure regulation core block POL input hole; Mill base enters horizontal mixed water injection district along pressure regulation core block mill base input hole; Mill base and ISO, POL collide at horizontal mixed water injection district oblique impact, and fully mixing three components flow out from pressure regulation core block center batch mixing delivery outlet.
Good effect of the present invention is: three components can realize fully collision; Mixed effect is good; Pour in down a chimney without the relative valve piston centre bore of ISO, POL during perfusion, valve piston mill base sprays centre bore without plugging fault, enhances productivity, and saves process time and maintenance time, reduces spare part expense.
Accompanying drawing explanation
Fig. 1 is existing structure valve piston structural representation;
Fig. 2 is existing structure valve piston sectional view;
Fig. 3 is existing structure cycle of higher pressure working state structure schematic diagram;
Fig. 4 is existing structure cycle of higher pressure duty E-E sectional view;
Fig. 5 is existing structure perfusion working state structure schematic diagram;
Fig. 6 is existing structure perfusion duty E-E sectional view;
Fig. 7 is structural representation of the present invention;
Fig. 8 is valve piston structural representation of the present invention;
Fig. 9 is cycle of higher pressure duty D-D sectional view of the present invention;
Figure 10 is cycle of higher pressure duty E-E sectional view of the present invention;
Figure 11 is that the present invention pours into duty D-D sectional view;
Figure 12 is that the present invention pours into duty E-E sectional view;
In figure: 1 pressure regulation core block, 2 valve pistons, 1a mill base input hole, 1b mill base delivery outlet, 1c ISO input hole, 1d ISO delivery outlet, 1e POL input hole, 1f POL delivery outlet, the horizontal mixed water injection district of 1g, 1h batch mixing delivery outlet, 2a cycle of higher pressure groove, 2b mill base circulating slot, 2c mill base spray centre bore, SJ first component mill base, ISO second component, POL the 3rd component.
Detailed description of the invention
One embodiment of the present of invention are described in detail below in conjunction with accompanying drawing.
The invention process, such as shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, comprises pressure regulation core block 1, valve piston 2.
As shown in Fig. 9, Figure 10, Figure 11, pressure regulation core block 1 comprises valve piston push rod installing hole, mill base input hole 1a, mill base delivery outlet 1b, ISO input hole 1c, ISO delivery outlet 1d, POL input hole 1e, POL delivery outlet 1f, horizontal mixed water injection district 1g, batch mixing delivery outlet 1h; Between mill base input hole 1a and horizontal mixed water injection district 1g, there are 60 ° of angles.
As shown in Figure 8, the push rod of valve piston 2 have symmetrical high circulating slot 2a, mill base circulating slot 2b; Mill base circulating slot 2b is positioned in the symmetrical center line of symmetrical high circulating slot 2a;
As shown in Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, the push rod slip matched in clearance of valve piston 2 is arranged in the valve piston push rod installing hole on pressure regulation core block 1, and valve piston 2 push rod can move along valve piston push rod installing hole linear reciprocation.
As shown in Figure 9, Figure 10, when cycle of higher pressure, valve piston 2 push rod moves inward (valve piston 2 is in position as shown in Figure 9), and the mill base input hole 1a on pressure regulation core block 1, mill base delivery outlet 1b are connected with the mill base circulating slot 2b on valve piston 2; ISO input hole 1c, ISO delivery outlet 1d on pressure regulation core block 1 is connected with the side cycle of higher pressure groove 2a on valve piston 2; POL input hole 1e, POL delivery outlet 1f on pressure regulation core block 1 is connected with the opposite side cycle of higher pressure groove 2a on valve piston 2.
As shown in Figure 11, Figure 12, when pouring into, the outwards movement of valve piston 2 push rod, valve piston 2 push rod clearance sealing mill base delivery outlet 1b, ISO delivery outlet 1d, POL delivery outlet 1f, mill base input hole 1a, ISO input hole 1c, POL input hole 1e is connected with horizontal mixed water injection district 1g, and the first component mill base SJ becomes 60 ° of angle oblique impacts to collide with the second component ISO, the 3rd component POL at horizontal mixed water injection district 1g.
As shown in Figure 9, Figure 10, during cycle of higher pressure, the first component mill base SJ enters along pressure regulation core block 1 mill base input hole 1a, enters valve piston 2 mill base circulating slot 2b, then flows out from pressure regulation core block 1 mill base delivery outlet 1b; Second component ISO enters along the ISO input hole 1c of pressure regulation core block 1, enters the side cycle of higher pressure groove 2a of valve piston 2, then flows out from the ISO delivery outlet 1d of pressure regulation core block 1; 3rd component POL enters along the POL input hole 1e of pressure regulation core block 1, enters valve piston 2 opposite side cycle of higher pressure groove 2a, then flows out from the POL delivery outlet 1f of pressure regulation core block 1.
As shown in Figure 11, Figure 12, during perfusion; Second component ISO enters horizontal mixed water injection district 1g along the ISO input hole 1c of pressure regulation core block 1; 3rd component POL enters horizontal mixed water injection district 1g along pressure regulation core block POL input hole 1e; First component mill base SJ enters horizontal mixed water injection district 1g along the mill base input hole 1a of pressure regulation core block 1; First component mill base SJ and the second component ISO, the 3rd component POL collide at horizontal mixed water injection district 1g oblique impact, and fully mixing three components flow out from the batch mixing delivery outlet 1h at pressure regulation core block 1 center.
Claims (4)
1. injection moulding three component mixing heads; Comprise pressure regulation core block, valve piston; Pressure regulation core block comprises valve piston push rod installing hole, mill base input hole, mill base delivery outlet, ISO input hole, ISO delivery outlet, POL input hole, POL delivery outlet, horizontal mixed water injection district, batch mixing delivery outlet; Between mill base input hole and horizontal mixed water injection district, there is angle; The push rod of valve piston have the first cycle of higher pressure groove, the second cycle of higher pressure groove, mill base circulating slot; First cycle of higher pressure groove, the second cycle of higher pressure groove are arranged symmetrically with; Mill base circulating slot is positioned in the first cycle of higher pressure groove, the second cycle of higher pressure groove symmetrical center line; The push rod slip matched in clearance of valve piston is arranged in the valve piston push rod installing hole on pressure regulation core block, and valve piston push rod can move along valve piston push rod installing hole linear reciprocation; When cycle of higher pressure, valve piston push rod moves inward, and the mill base input hole on pressure regulation core block, mill base delivery outlet are connected with the mill base circulating slot on valve piston; ISO input hole on pressure regulation core block, ISO delivery outlet are connected with the first cycle of higher pressure groove on valve piston; POL input hole on pressure regulation core block, POL delivery outlet are connected with the second cycle of higher pressure groove on valve piston; When pouring into, the outwards movement of valve piston push rod, valve piston push rod clearance sealing mill base delivery outlet, ISO delivery outlet, POL delivery outlet, mill base input hole, ISO input hole, POL input hole are connected with horizontal mixed water injection district, and mill base and ISO, POL collide at horizontal mixed water injection district angle oblique impact.
2. a kind of injection moulding according to claim 1 three component mixing heads; It is characterized in that: the mill base input hole on pressure regulation core block and between horizontal mixed water injection district, there is angle and be greater than 30 °, be less than or equal to 90 °; Mill base and ISO, POL collide at horizontal mixed water injection district angle oblique impact.
3. a kind of injection moulding according to claim 1 and 2 three component mixing heads; It is characterized in that: the mill base input hole on pressure regulation core block and horizontal mixed water injection interval have angle 60 °, mill base and ISO, POL collide at 60 °, horizontal mixed water injection district angle oblique impact.
4. a kind of injection moulding according to claim 1 three component mixing heads; It is characterized in that: during cycle of higher pressure, mill base enters along pressure regulation core block mill base input hole, enters valve piston mill base circulating slot, then flows out from pressure regulation core block mill base delivery outlet; ISO enters along pressure regulation core block ISO input hole, enters valve piston cycle of higher pressure groove, then flows out from pressure regulation core block ISO delivery outlet; POL enters along pressure regulation core block POL input hole, enters valve piston cycle of higher pressure groove, then flows out from pressure regulation core block POL delivery outlet; During perfusion; ISO enters horizontal mixed water injection district along pressure regulation core block ISO input hole; POL enters horizontal mixed water injection district along pressure regulation core block POL input hole; Mill base enters horizontal mixed water injection district along pressure regulation core block mill base input hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200426.1A CN103991159B (en) | 2014-05-14 | 2014-05-14 | Three-component mixing head for injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200426.1A CN103991159B (en) | 2014-05-14 | 2014-05-14 | Three-component mixing head for injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103991159A CN103991159A (en) | 2014-08-20 |
| CN103991159B true CN103991159B (en) | 2015-05-20 |
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| CN201410200426.1A Active CN103991159B (en) | 2014-05-14 | 2014-05-14 | Three-component mixing head for injection molding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105619685B (en) * | 2015-12-25 | 2018-04-10 | 天合富奥汽车安全系统（长春）有限公司 | A kind of V-type is to the three component mixing heads penetrated |
| EP3416517B1 (en) * | 2016-02-19 | 2021-06-23 | Puma Se | Method for producing a shoe, in particular a sports shoe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902850A (en) * | 1974-03-18 | 1975-09-02 | Upjohn Co | Solvent-free, self-cleaning mixing head nozzles for reactive polymer mixes |
| IT1254971B (en) * | 1992-06-18 | 1995-10-11 | Frequency-activated high pressure mixing head | |
| CN2664787Y (en) * | 2003-10-30 | 2004-12-22 | 中国国际海运集装箱(集团)股份有限公司 | Self-cleaning high pressure mixing head |
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| CN103991159A (en) | 2014-08-20 |
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