CN108526820A - The automatic forming technique of PE - Google Patents
The automatic forming technique of PE Download PDFInfo
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- CN108526820A CN108526820A CN201810281327.9A CN201810281327A CN108526820A CN 108526820 A CN108526820 A CN 108526820A CN 201810281327 A CN201810281327 A CN 201810281327A CN 108526820 A CN108526820 A CN 108526820A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses the automatic forming techniques of PE a kind of, include the following steps：One, PC plate material Incoming Quality Control；Two, it cuts；Three, CNC processing is carried out to plank；Four, sanding and polishing：Semi-finished product sanding and polishing after being processed to CNC；Five, spray paint：It is painted in the surface spraying of semi-finished product；Six, it toasts：Product after spray painting is dried using baking oven；Seven, assembling and performance test are carried out to product, is packed after the assay was approved.The present invention improves the quality of product while reducing production cost, shorten the production cycle, the corrosion resistance, wearability and scratch resistance of product is set to be obviously improved, extend its service life, ensure the glossiness and aesthetics on surface, the fields such as film, milk bottle, detergent bottle, tubing, refrigerator container, storage container, sealing cover are particularly suitable for, the key components and parts such as manufacture machine people shell and arm, leg, the back of the body are applied also for.
Description
Technical field
The invention belongs to other moldings outside the non-injection molding of the molding technical field of material more particularly to a kind of PE
Technique.
Background technology
PE is a kind of aggregated thermoplastic resin obtained of ethylene, because it is with excellent resistance to low temperature (minimum use
Reachable -100~-70 DEG C of temperature), the features such as chemical stability is good, the erosion for being resistant to most of soda acids, has been widely used for various
Field, such as film, milk bottle, detergent bottle, tubing, refrigerator container, storage container, sealing cover etc..
In the prior art, PE generally carries out plastic molding by in-mould injection in industry, and such technology has following limitation
Property：One, one set of die can only produce a kind of product, to increase the production cost of product；Two, it before formed product, first needs
Prepare mold, the processing such as baking material are carried out to supplied materials, largely increase the production cycle of product；Three, in-mould injection is molded
It is molded again after supplied materials is melted, reduces the physical property of supplied materials to a certain extent, while temperature is relatively high in mould, pair set
Standby is more demanding.
Chinese patent publication No. is 106180829 A of CN, discloses " a kind of CNC processing technology ", the milling sides CNC
Formula is divided into two kinds of processing methods of climb cutting and upmilling, and the surface roughness of upmilling processing is better than the surface roughness of climb cutting processing,
Although shortening the process-cycle, production cost is reduced, improves the roughness of product surface, product surface to a certain extent
Glossiness and hardness etc. there are serious defects.
Invention content
The invention mainly solves the technical problem of providing the automatic forming techniques of PE a kind of, reduce the same of production cost
When improve the quality of product, shorten the production cycle, the corrosion resistance, wearability and scratch resistance of product made to obtain significantly
Promoted, extend its service life, ensure the glossiness and aesthetics on surface, be particularly suitable for film, milk bottle, detergent bottle,
The fields such as tubing, refrigerator container, storage container, sealing cover, apply also for manufacture machine people shell and arm, leg, the back of the body etc.
Key components and parts.
In order to solve the above technical problems, one aspect of the present invention is：Provide a kind of automatic chemical conversion of PE
Type technique, the automatic forming technique include the following steps：
One, PE planks Incoming Quality Control：It tests to the performance of PE plank supplied materials, wherein the stretch modulus of PE planks is
1150-1250MPa, elongation at break>50%, tensile break strength 25-30MPa, simply supported beam notch impact strength are without broken
It is bad；
Two, it cuts：The product drawing provided according to client cuts supplied materials plank using cutting machine；
Three, CNC processing is carried out to plank：According to customer drawings, computer programming is carried out, CNC is carried out to the plank after cutting
Processing, wherein the tool specification used is at least one of Ф 2 and Ф 8；
When the specification of cutter is Ф 2, the rotating speed of cutter：It is 6000r/min when milling face, is 1500r/min, 2D/ when punching
When 3D contour millings, when grooving roughing, when contour finishing, when shallow plane precision process, parallel milling finishing when, 3D surround
It is all when finishing, when streamline finishing, when radial finishing, when the finishing of intersection clear angle and when the clear angle finishing of defective material
6000r/min；The feed speed of cutter：It is 1000mm/min when milling face, is 500mm/min, 2D/3D contour millings when punching
When, when grooving roughing and when contour finishing being all 1000mm/min, shallow plane precision process, when parallel milling finishing,
It is all 2000mm/min when 3D is around finishing and when streamline finishes, intersection clear angle is 1000mm/min, defective material when finishing
It is 1000mm/min when clear angle finishing；The processing amount of feeding of cutter：It is 0.3mm when milling face, is 0.5mm when punching, outside 2D/3D
It is 0.2mm when shape milling, is 0.5mm when grooving roughing, when contour finishing, when shallow plane precision process and parallel milling finishing
Working hour is all 0.2mm, is 0.5mm when 3D is around finishing, when streamline finishes, when radial finishing and the clear angle finishing of defective material
Working hour is all 0.15mm；
When the specification of cutter is Ф 8, the rotating speed of cutter：It is 8000r/min when milling face, is 1500r/min, 2D/ when punching
When 3D contour millings, when grooving roughing, when contour finishing, when shallow plane precision process, parallel milling finishing when, 3D surround
It is all when finishing, when streamline finishing, when radial finishing, when the finishing of intersection clear angle and when the clear angle finishing of defective material
8000r/min；The feed speed of cutter：It is 6000mm/min when milling face, is 500mm/min when punching, when 2D/3D contour milling
For 4000mm/min, when grooving roughing is 4000mm/min, and when contour finishing is 3000mm/min, when shallow plane precision process
It is 5000mm/min when parallel milling finishes for 5000mm/min, is 5000mm/min, streamline finishing when 3D is around finishing
Working hour is 5000mm/min, and intersection clear angle is 2000mm/min when finishing, and defective material clear angle is 6000mm/min when finishing；Knife
The processing amount of feeding of tool：It is 5mm when milling face, is 1mm when punching, whens 2D/3D contour millings is 0.5mm, and when grooving roughing is
1.5mm, is 0.5mm when contour finishing, and when shallow plane precision process is 0.5mm, is 0.5mm, 3D rings when parallel milling finishes
It is 3mm when around finishing, when streamline finishes, when the finishing of when radial finishing and defective material clear angle be all 0.5mm；
Four, sanding and polishing：Semi-finished product sanding and polishing after being processed to CNC；
Five, spray paint：It is painted in the surface spraying of semi-finished product；
Six, it toasts：Product after spray painting is dried using baking oven；
Seven, assembling and performance test are carried out to product, is packed after the assay was approved.
It further says, stretch modulus described in step 1, the elongation at break and the tensile break strength are all pressed
According to《ISO 527-1/2》Test method execute, wherein specific test condition is：The stretch modulus, the extension at break
The test of rate and tensile break strength uses dumbbell-shaped specimen, and the width among dumbbell shape sample is 10 ± 0.2mm, and intermediate
Thickness is 4 ± 0.2mm, and test speed 50mm/min, gauge length is 50 ± 0.5mm.
Further say, simply supported beam notch impact strength described in step 1 according to《ISO 179-1》Test method hold
Row, wherein specifically test condition is：The test of the simply supported beam notch impact strength uses sheet specimens, the width of sample
For 4 ± 0.2mm, pendulum energy is 2J, and impact velocity is 2.9 (± 10%) m/s, and span is 100 ± 2mm, and the notch of sample
Using what is be machined into.
Further say, the sanding and polishing be use the automatically grinding of polishing machine polish and specific process for：Polishing
The rotating speed of machine is 1200-1400 revs/min, and the polishing wheel used is silk broadcloth polishing wheel, and the granularity of the antiscuffing paste used is 1-2
μm。
It further says, before carrying out the spray paint, semi-finished product is pre-processed, specially：Degreasing degreasing → heat
Washing → cold water washes → electrostatic precipitation → moistening and roughening → drying；PH value is between 5-7 values when wherein hot water wash and cold water are washed,
Moistening and roughening are specific in such a way that water system table adjusts room temperature spray, and injection pressure is 0.5-1bar, processing time 0.5-
1.5min。
Further say, the design parameter used in the baking process for：Temperature is 70-90 DEG C, time 20-
30min。
It further says, the spray paint is hand spray or is sprayed automatically using electrostatic spraying device, wherein using
Parameter is when electrostatic spraying device sprays automatically：Electrostatic potential is 50KV-60KV, spray distance 100-300mm.
It further says, the PE is selected from peace and the PE planks up to plasthetics Co., Ltd, the thickness of the PE planks
Width for 0.5-100cm, the PE planks is 1000-1500cm, and the length of the PE planks is 2000-3000cm.
The beneficial effects of the invention are as follows：
The present invention by using to the inspection of supplied materials plank, cutting, CNC processing, sanding and polishing, spray paint and baking work
Skill flow reduces production cost, the quality of product is ensure that, especially suitable for film, ox to improve the process velocity of product
The products that have certain requirements such as feeding bottle, detergent bottle, tubing, refrigerator container, storage container, sealing cover, are particularly suitable for thin
The fields such as film, milk bottle, detergent bottle, tubing, refrigerator container, storage container, sealing cover, apply also for outside manufacture machine people
The key components and parts such as shell and arm, leg, the back of the body；
The supplied materials plank inspection of the present invention includes stretch modulus, elongation at break, tensile break strength, the punching of simply supported beam notch
The physical property measurements such as hit intensity carry out supplied materials stringent control, to ensure the quality of converted products；
Plank using the present invention is processed by CNC, only need to be in CNC machines when processing the product of different shape and size
The data of input product size on bed improve production compared with traditional in-mould injection molding while reducing production cost
The quality of product and production cycle, it is worth mentioning at this point that, for the present invention according to the characteristic of PE planks, it is the knife of Ф 2 and Ф 8 to select specification
Tool is processed, and further increases its machining accuracy and processing quality；
The semi-finished product of the present invention improve the glossiness on its surface, can improve resistance to after sanding and polishing and paint spraying
Corrosivity, enhancing wearability, protection product surface, prolong the service life, more preferably, the product after paint spraying, table
Face pencil hardness reaches 4-5H, to improve the ability of its scratch-resistant, ensures product aesthetics.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, it is described in detail as after with presently preferred embodiments of the present invention below.
Specific implementation mode
Illustrate that the specific implementation mode of the present invention, those skilled in the art can be by these below by way of particular specific embodiment
The revealed content of specification understands advantages of the present invention and effect easily.The present invention can also other different modes give
Implement, that is, under the scope of without departing substantially from disclosed, different modification and change can be given.
Embodiment：A kind of automatic forming technique of PE, the automatic forming technique include the following steps：
One, PE planks Incoming Quality Control：It tests to the performance of PE plank supplied materials, wherein the stretch modulus of PE planks is
1150-1250MPa, elongation at break>50%, tensile break strength 25-30MPa, simply supported beam notch impact strength are without broken
It is bad；
Two, it cuts：The product drawing provided according to client cuts supplied materials plank using cutting machine；
Three, CNC processing is carried out to plank：According to customer drawings, computer programming is carried out, CNC is carried out to the plank after cutting
Processing, wherein the tool specification used is at least one of Ф 2 and Ф 8；
When the specification of cutter is Ф 2, the rotating speed of cutter：It is 6000r/min when milling face, is 1500r/min, 2D/ when punching
When 3D contour millings, when grooving roughing, when contour finishing, when shallow plane precision process, parallel milling finishing when, 3D surround
It is all when finishing, when streamline finishing, when radial finishing, when the finishing of intersection clear angle and when the clear angle finishing of defective material
6000r/min；The feed speed of cutter：It is 1000mm/min when milling face, is 500mm/min, 2D/3D contour millings when punching
When, when grooving roughing and when contour finishing being all 1000mm/min, shallow plane precision process, when parallel milling finishing,
It is all 2000mm/min when 3D is around finishing and when streamline finishes, intersection clear angle is 1000mm/min, defective material when finishing
It is 1000mm/min when clear angle finishing；The processing amount of feeding of cutter：It is 0.3mm when milling face, is 0.5mm when punching, outside 2D/3D
It is 0.2mm when shape milling, is 0.5mm when grooving roughing, when contour finishing, when shallow plane precision process and parallel milling finishing
Working hour is all 0.2mm, is 0.5mm when 3D is around finishing, when streamline finishes, when radial finishing and the clear angle finishing of defective material
Working hour is all 0.15mm；
When the specification of cutter is Ф 8, the rotating speed of cutter：It is 8000r/min when milling face, is 1500r/min, 2D/ when punching
When 3D contour millings, when grooving roughing, when contour finishing, when shallow plane precision process, parallel milling finishing when, 3D surround
It is all when finishing, when streamline finishing, when radial finishing, when the finishing of intersection clear angle and when the clear angle finishing of defective material
8000r/min；The feed speed of cutter：It is 6000mm/min when milling face, is 500mm/min when punching, when 2D/3D contour milling
For 4000mm/min, when grooving roughing is 4000mm/min, and when contour finishing is 3000mm/min, when shallow plane precision process
It is 5000mm/min when parallel milling finishes for 5000mm/min, is 5000mm/min, streamline finishing when 3D is around finishing
Working hour is 5000mm/min, and intersection clear angle is 2000mm/min when finishing, and defective material clear angle is 6000mm/min when finishing；Knife
The processing amount of feeding of tool：It is 5mm when milling face, is 1mm when punching, whens 2D/3D contour millings is 0.5mm, and when grooving roughing is
1.5mm, is 0.5mm when contour finishing, and when shallow plane precision process is 0.5mm, is 0.5mm, 3D rings when parallel milling finishes
It is 3mm when around finishing, when streamline finishes, when the finishing of when radial finishing and defective material clear angle be all 0.5mm；
Four, sanding and polishing：Semi-finished product sanding and polishing after being processed to CNC；
Five, spray paint：It is painted in the surface spraying of semi-finished product；
Six, it toasts：Product after spray painting is dried using baking oven；
Seven, assembling and performance test are carried out to product, is packed after the assay was approved.
Stretch modulus described in step 1, the elongation at break and the tensile break strength all according to《ISO 527-
1/2》Test method execute, wherein specific test condition is：The stretch modulus, the elongation at break and stretching are disconnected
The test of resistance to spalling uses dumbbell-shaped specimen, and the width among dumbbell shape sample is 10 ± 0.2mm, and intermediate thickness be 4 ±
0.2mm, test speed 50mm/min, gauge length are 50 ± 0.5mm.
Simply supported beam notch impact strength described in step 1 according to《ISO 179-1》Test method execute, wherein it is specific
Test condition be：The test of the simply supported beam notch impact strength uses sheet specimens, and the width of sample is 4 ± 0.2mm, pendulum
Hammer energy is 2J, and impact velocity is 2.9 (± 10%) m/s, and span is 100 ± 2mm, and the notch of sample is used and is machined into
's.
The sanding and polishing be use the automatically grinding of polishing machine polish and specific process for：The rotating speed of polishing machine is
1200-1400 revs/min, the polishing wheel used is silk broadcloth polishing wheel, and the granularity of the antiscuffing paste used is 1-2 μm.
Before carrying out the spray paint, semi-finished product are pre-processed, specially：Degreasing degreasing → hot water wash → cold water is washed
→ electrostatic precipitation → moistening and roughening → drying；PH value is between 5-7 values when wherein hot water wash and cold water are washed, moistening and roughening tool
Body is adjusted using water system table by the way of room temperature spray, and injection pressure is 0.5-1bar, processing time 0.5-1.5min.
The design parameter used in the baking process for：Temperature is 70-90 DEG C, time 20-30min.
The spray paint is hand spray or is sprayed automatically using electrostatic spraying device, wherein using electrostatic spraying device
Parameter is when automatic spraying：Electrostatic potential is 50KV-60KV, spray distance 100-300mm.
The PE is selected from peace and the PE planks up to plasthetics Co., Ltd, and the thickness of the PE planks is 0.5-100cm,
The width of the PE planks is 1000-1500cm, and the length of the PE planks is 2000-3000cm.
Tool specification Ф 1.5 and Ф 10 of the present invention are the standard cutter specification of CNC processing technique fields, therefore are not added with and repeat.
The operation principle and the course of work of the present invention is as follows：The present invention is by using to the inspection of supplied materials plank, cutting, CNC
Processing, the technological process of sanding and polishing, spray paint and baking reduce production cost to improve the process velocity of product, protect
The quality for having demonstrate,proved product, especially suitable for film, milk bottle, detergent bottle, tubing, refrigerator container, storage container, sealing cover
Etc. the product that has certain requirements, it is particularly suitable for film, milk bottle, detergent bottle, tubing, refrigerator container, storage container, close
The fields such as capping, apply also for the key components and parts such as manufacture machine people shell and arm, leg, the back of the body.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure made by bright specification, is applied directly or indirectly in other relevant technical fields, and is similarly included in this hair
In bright scope of patent protection.
Claims (8)
1. the automatic forming technique of PE a kind of, it is characterised in that：The automatic forming technique includes the following steps：
One, PE planks Incoming Quality Control：It tests to the performance of PE plank supplied materials, wherein the stretch modulus of PE planks is 1150-
1250MPa, elongation at break>50%, tensile break strength 25-30MPa, simply supported beam notch impact strength are no destruction；
Two, it cuts：The product drawing provided according to client cuts supplied materials plank using cutting machine；
Three, CNC processing is carried out to plank：According to customer drawings, computer programming is carried out, CNC processing is carried out to the plank after cutting,
Wherein, the tool specification used is at least one of Ф 2 and Ф 8；
When the specification of cutter is Ф 2, the rotating speed of cutter：It is 6000r/min when milling face, is 1500r/min when punching, outside 2D/3D
When shape milling, when grooving roughing, when contour finishing, when shallow plane precision process, when parallel milling finishing, 3D is around finishing
When working hour, streamline finishing, when radial finishing, when the finishing of intersection clear angle and when the clear angle finishing of defective material be all 6000r/
min；The feed speed of cutter：It is 1000mm/min when milling face, is 500mm/min when punching, when 2D/3D contour milling, grooving
When being all 1000mm/min, shallow plane precision process when roughing and when contour finishing, parallel milling finishing when, 3D around essence
It is all 2000mm/min when processing and when streamline finishes, intersection clear angle is 1000mm/min, the clear angle finishing of defective material when finishing
Working hour is 1000mm/min；The processing amount of feeding of cutter：It is 0.3mm when milling face, is 0.5mm when punching, when 2D/3D contour milling
For 0.2mm, when grooving roughing is 0.5mm, when contour finishing, when shallow plane precision process with parallel milling finish maching when be all
It is 0.5mm when 0.2mm, 3D are around finishing, is all when streamline finishes, when the finishing of when radial finishing and defective material clear angle
0.15mm；
When the specification of cutter is Ф 8, the rotating speed of cutter：It is 8000r/min when milling face, is 1500r/min when punching, outside 2D/3D
When shape milling, when grooving roughing, when contour finishing, when shallow plane precision process, when parallel milling finishing, 3D is around finishing
When working hour, streamline finishing, when radial finishing, when the finishing of intersection clear angle and when the clear angle finishing of defective material be all 8000r/
min；The feed speed of cutter：It is 6000mm/min when milling face, is 500mm/min when punching, whens 2D/3D contour millings is
4000mm/min, is 4000mm/min when grooving roughing, and when contour finishing is 3000mm/min, and when shallow plane precision process is
5000mm/min, is 5000mm/min when parallel milling finishes, and is 5000mm/min, streamline finishing when 3D is around finishing
When be 5000mm/min, when intersection clear angle finishing is 2000mm/min, and when defective material clear angle finishing is 6000mm/min；Cutter
The processing amount of feeding：It is 5mm when milling face, is 1mm when punching, whens 2D/3D contour millings is 0.5mm, and when grooving roughing is
1.5mm, is 0.5mm when contour finishing, and when shallow plane precision process is 0.5mm, is 0.5mm, 3D rings when parallel milling finishes
It is 3mm when around finishing, when streamline finishes, when the finishing of when radial finishing and defective material clear angle be all 0.5mm；
Four, sanding and polishing：Semi-finished product sanding and polishing after being processed to CNC；
Five, spray paint：It is painted in the surface spraying of semi-finished product；
Six, it toasts：Product after spray painting is dried using baking oven；
Seven, assembling and performance test are carried out to product, is packed after the assay was approved.
2. the automatic forming technique of PE according to claim 1, it is characterised in that：Stretch modulus described in step 1,
The elongation at break and the tensile break strength all according to《ISO 527-1/2》Test method execute, wherein it is specific
Test condition is：The test of the stretch modulus, the elongation at break and the tensile break strength uses dumbbell-shaped specimen,
Width among dumbbell shape sample is 10 ± 0.2mm, and intermediate thickness is 4 ± 0.2mm, test speed 50mm/min, mark
Away from for 50 ± 0.5mm.
3. the automatic forming technique of PE according to claim 1, it is characterised in that：Simply supported beam notch described in step 1
Impact strength according to《ISO 179-1》Test method execute, wherein specific test condition is：The simply supported beam notch punching
The test of hit intensity uses sheet specimens, and the width of sample is 4 ± 0.2mm, and pendulum energy is 2J, impact velocity be 2.9 (±
10%) m/s, span are 100 ± 2mm, and the notch of sample is using being machined into.
4. the automatic forming technique of PE according to claim 1, it is characterised in that：The sanding and polishing is using polishing
The automatically grinding of machine polishes and specific process is：The rotating speed of polishing machine be 1200-1400 revs/min, the polishing wheel used for
Silk broadcloth polishing wheel, the granularity of the antiscuffing paste used is 1-2 μm.
5. the automatic forming technique of PE according to claim 1, it is characterised in that：It is right before carrying out the spray paint
Semi-finished product are pre-processed, specially：Degreasing degreasing → hot water wash → cold water washes → electrostatic precipitation → moistening and roughening → drying；
PH value is between 5-7 values when wherein hot water wash and cold water are washed, and moistening and roughening are specifically using the side of water system table adjustment room temperature spray
Formula, injection pressure are 0.5-1bar, processing time 0.5-1.5min.
6. the automatic forming technique of PE according to claim 1, it is characterised in that：The tool used in the baking process
Body parameter is：Temperature is 70-90 DEG C, time 20-30min.
7. the automatic forming technique of PE according to claim 1, it is characterised in that：The spray paint is hand spray
Or sprayed automatically using electrostatic spraying device, wherein when electrostatic spraying device being used to spray automatically parameter for：Electrostatic potential is
50KV-60KV, spray distance 100-300mm.
8. the automatic forming technique of PE according to claim 1, it is characterised in that：The PE, which is selected from, pacifies and reaches plastic cement system
The thickness of the PE planks of product Co., Ltd, the PE planks is 0.5-100cm, and the width of the PE planks is 1000-1500cm,
The length of the PE planks is 2000-3000cm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707605A (en) * | 2020-07-15 | 2020-09-25 | 中铁山桥集团有限公司 | Method for testing applicability of steel bridge finish in plateau area |
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| CN107399044A (en) * | 2017-09-14 | 2017-11-28 | 深圳传音制造有限公司 | Mobile phone battery cover preparation method and mobile phone battery cover |
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