CN104985782A - Machining technology for chair plastic armrest - Google Patents
Machining technology for chair plastic armrest Download PDFInfo
- Publication number
- CN104985782A CN104985782A CN201510396946.9A CN201510396946A CN104985782A CN 104985782 A CN104985782 A CN 104985782A CN 201510396946 A CN201510396946 A CN 201510396946A CN 104985782 A CN104985782 A CN 104985782A
- Authority
- CN
- China
- Prior art keywords
- injection
- handrail
- pressure
- processing technology
- described step
- 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.)
- Pending
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 238000003754 machining Methods 0.000 title abstract 4
- 238000005498 polishing Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 60
- 239000007924 injection Substances 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 10
- 239000000443 aerosol Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 6
- 238000007654 immersion Methods 0.000 abstract description 3
- 229920001944 Plastisol Polymers 0.000 abstract 1
- 239000004999 plastisol Substances 0.000 abstract 1
- 244000137852 Petrea volubilis Species 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/54—Supports for the arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
- B29C2045/776—Measuring, controlling or regulating of velocity or pressure of moulding material determining the switchover point to the holding pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention provides a machining technology for a chair plastic armrest. The technology comprises the steps of feeding, solation, film combining, plastisol jetting, pressure keeping, cooling and polishing. The steps of the technology are simple, the machining period is short, and meanwhile the high temperature resistance of the armrest formed in an injection molding mode is greatly improved; according to the polishing step in machining, a traditional water-immersion sanding method is abandoned, a polishing machine is adopted to be combined with grinding paste to replace manual grinding, and therefore the working efficiency is improved greatly. Meanwhile, the problem that sanding paper will abrade the plastic armrest, so that sand marks will be left on the plastic armrest is solved.
Description
Technical field
The present invention relates to a kind of furniture processing technology, particularly relate to a kind of processing technology of chair plastic handrail.
Background technology
Plastic products often adopt injection mo(u)lding die pressing to prepare, and often will carry out polishing to its surface after moulding.Along with the development of injection molding technology, high optical plastic plastic part is more and more used.Traditional polishing adopts sand paper to carry out immersion polishing to it often, and sand paper meeting worn plastic part, causes plastic part leaving sand print, and the waste of manpower of immersion polishing simultaneously, can cause more factory effluent, contaminated environment, increase its processing cost.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, provide a kind of processing technology of simple to operate, chair plastic handrail that polishing efficiency is high.
A kind of chair plastic handrail processing technology, it is characterized in that, described processing step is:
(1) material loading: injection molding raw material is added in injection machine, the material loading time is 15-20s;
(2) colloidal sol: the one section of colloidal sol pressure regulating injection machine is 80-120bar, and two sections of colloidal sol pressure are 75-110bar, and three sections of colloidal sol pressure are 65-90bar, and every section of aerosol time controls at 1-12s;
(3) film is closed: closing the film time is 2-5s;
(4) injection: be expelled in handrail mould by nozzle by the plastic raw materials under molten condition, injection is divided into two stages: the injection pressure of first stage is 55-75bar, and its injection speeds control is at 75-90cm
3/ s, the injection pressure of second stage is 85-110bar, and its injection speeds control is at 82-96cm
3/ s;
(5) pressurize and cooling: mould pressurize 8-20s under 40-100bar pressure that injection in step (4) is completed, afterwards by Pressure Drop to 20-50bar, die sinking after cooling 2-4s;
(6) polishing: taken out by the handrail model in step (5), is coated with last layer antiscuffing paste by its surface, carries out spin friction afterwards with the rubbing head on polishing machine on handrail model.
Preferably, in described step (4), the injection time of first stage is 5-7s, and the injection time of second stage is 4-6s.
Preferably, in described step (1), material loading temperature controls at 40-55 DEG C.
Preferably, in described step (6), antiscuffing paste coating layer thickness is 1-10mm.
Preferably, in described step (6), the rotating speed of polishing machine controls at 2000-4000 rev/min.
Preferably, in described step (6), the rotating speed of polishing machine controls at 3200 revs/min.
Beneficial effect: the invention provides a kind of chair plastic handrail processing technology, described technique comprises material loading, colloidal sol, conjunction film, injection, pressurize and cooling, polishing, its processing step is simple, the process-cycle is short, the handrail heat-resisting ability that injection mo(u)lding simultaneously goes out promotes greatly, glossing in processing has abandoned traditional water logging sand papering method, polishing machine is adopted to replace manual polishing in conjunction with grinding paster, operating efficiency big upgrade.Solve sand paper meeting worn plastic handrail simultaneously, cause plastic handrail leaves the problem of sand print.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
Embodiment 1
A kind of chair plastic handrail processing technology, it is characterized in that, described processing step is:
(1) material loading: injection molding raw material is added in injection machine, the material loading time is 15s;
(2) colloidal sol: the one section of colloidal sol pressure regulating injection machine is 80bar, and two sections of colloidal sol pressure are 75bar, and three sections of colloidal sol pressure are 65bar, and every section of aerosol time controls at 1s;
(3) film is closed: closing the film time is 2s;
(4) injection: be expelled in handrail mould by nozzle by the plastic raw materials under molten condition, injection is divided into two stages: the injection pressure of first stage is 55bar, and its injection speeds control is at 75cm
3/ s, the injection pressure of second stage is 85bar, and its injection speeds control is at 82cm
3/ s;
(5) pressurize and cooling: mould pressurize 8s under 40bar pressure that injection in step (4) is completed, afterwards by Pressure Drop to 20bar, die sinking after cooling 2s;
(6) polishing: taken out by the handrail model in step (5), is coated with last layer antiscuffing paste by its surface, carries out spin friction afterwards with the rubbing head on polishing machine on handrail model.
Wherein, in described step (4), the injection time of first stage is 5s, the injection time of second stage is 4s, in described step (1), material loading temperature controls at 40 DEG C, in described step (6), antiscuffing paste coating layer thickness is 1mm, and in described step (6), the rotating speed of polishing machine controls at 2000 revs/min.
Embodiment 2
A kind of chair plastic handrail processing technology, it is characterized in that, described processing step is:
(1) material loading: injection molding raw material is added in injection machine, the material loading time is 18s;
(2) colloidal sol: the one section of colloidal sol pressure regulating injection machine is 100bar, and two sections of colloidal sol pressure are 85bar, and three sections of colloidal sol pressure are 75bar, and every section of aerosol time controls at 6s;
(3) film is closed: closing the film time is 4s;
(4) injection: be expelled in handrail mould by nozzle by the plastic raw materials under molten condition, injection is divided into two stages: the injection pressure of first stage is 60bar, and its injection speeds control is at 80cm
3/ s, the injection pressure of second stage is 95bar, and its injection speeds control is at 90cm
3/ s;
(5) pressurize and cooling: mould pressurize 12s under 60bar pressure that injection in step (4) is completed, afterwards by Pressure Drop to 35bar, die sinking after cooling 3s;
(6) polishing: taken out by the handrail model in step (5), is coated with last layer antiscuffing paste by its surface, carries out spin friction afterwards with the rubbing head on polishing machine on handrail model.
Wherein, in described step (4), the injection time of first stage is 6s, the injection time of second stage is 5s, in described step (1), material loading temperature controls at 45 DEG C, in described step (6), antiscuffing paste coating layer thickness is 5mm, and in described step (6), the rotating speed of polishing machine controls at 3200 revs/min.
Embodiment 3
A kind of chair plastic handrail processing technology, it is characterized in that, described processing step is:
(1) material loading: injection molding raw material is added in injection machine, the material loading time is 20s;
(2) colloidal sol: the one section of colloidal sol pressure regulating injection machine is 120bar, and two sections of colloidal sol pressure are 110bar, and three sections of colloidal sol pressure are 90bar, and every section of aerosol time controls at 12s;
(3) film is closed: closing the film time is 5s;
(4) injection: be expelled in handrail mould by nozzle by the plastic raw materials under molten condition, injection is divided into two stages: the injection pressure of first stage is 75bar, and its injection speeds control is at 90cm
3/ s, the injection pressure of second stage is 110bar, and its injection speeds control is at 96cm
3/ s;
(5) pressurize and cooling: mould pressurize 20s under 100bar pressure that injection in step (4) is completed, afterwards by Pressure Drop to 50bar, die sinking after cooling 4s;
(6) polishing: taken out by the handrail model in step (5), is coated with last layer antiscuffing paste by its surface, carries out spin friction afterwards with the rubbing head on polishing machine on handrail model.
Wherein, in described step (4), the injection time of first stage is 7s, the injection time of second stage is 6s, in described step (1), material loading temperature controls at 55 DEG C, in described step (6), antiscuffing paste coating layer thickness is 10mm, and in described step (6), the rotating speed of polishing machine controls at 4000 revs/min.
| Bending strength | Elongation after fracture | Continuous heat resisting temperature | |
| Embodiment 1 | 55MPa | 40％ | 85℃ |
| Embodiment 2 | 52MPa | 37％ | 78℃ |
| Embodiment 3 | 47MPa | 41％ | 89℃ |
| Existing technical parameter | 32MPa | 29％ | 65℃ |
According to above table data, utilize the processing technology of chair plastic handrail provided by the invention, the plastic handrail bending strength that it processes is high, temperature capacity is strong, elongation after fracture is higher, all test performances are all higher than existing technical parameter.
The invention provides a kind of chair plastic handrail processing technology, described technique comprises material loading, colloidal sol, conjunction film, injection, pressurize and cooling, polishing, its processing step is simple, the process-cycle is short, the handrail heat-resisting ability that injection mo(u)lding simultaneously goes out promotes greatly, glossing in processing has abandoned traditional water logging sand papering method, polishing machine is adopted to replace manual polishing in conjunction with grinding paster, operating efficiency big upgrade.Solve sand paper meeting worn plastic handrail simultaneously, cause plastic handrail leaves the problem of sand print.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (6)
1. a chair plastic handrail processing technology, is characterized in that, described processing step is:
(1) material loading: injection molding raw material is added in injection machine, the material loading time is 15-20s;
(2) colloidal sol: the one section of colloidal sol pressure regulating injection machine is 80-120bar, and two sections of colloidal sol pressure are 75-110bar, and three sections of colloidal sol pressure are 65-90bar, and every section of aerosol time controls at 1-12s;
(3) film is closed: closing the film time is 2-5s;
(4) injection: be expelled in handrail mould by nozzle by the plastic raw materials under molten condition, injection is divided into two stages: the injection pressure of first stage is 55-75bar, and its injection speeds control is at 75-90cm
3/ s, the injection pressure of second stage is 85-110bar, and its injection speeds control is at 82-96cm
3/ s;
(5) pressurize and cooling: mould pressurize 8-20s under 40-100bar pressure that injection in step (4) is completed, afterwards by Pressure Drop to 20-50bar, die sinking after cooling 2-4s;
(6) polishing: taken out by the handrail model in step (5), is coated with last layer antiscuffing paste by its surface, carries out spin friction afterwards with the rubbing head on polishing machine on handrail model.
2. chair plastic handrail processing technology according to claim 1, is characterized in that, in described step (4), the injection time of first stage is 5-7s, and the injection time of second stage is 4-6s.
3. chair plastic handrail processing technology according to claim 1, is characterized in that, in described step (1), material loading temperature controls at 40-55 DEG C.
4. chair plastic handrail processing technology according to claim 1, is characterized in that, in described step (6), antiscuffing paste coating layer thickness is 1-10mm.
5. chair plastic handrail processing technology according to claim 1, is characterized in that, in described step (6), the rotating speed of polishing machine controls at 2000-4000 rev/min.
6. chair plastic handrail processing technology according to claim 5, is characterized in that, in described step (6), the rotating speed of polishing machine controls at 3200 revs/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396946.9A CN104985782A (en) | 2015-07-07 | 2015-07-07 | Machining technology for chair plastic armrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396946.9A CN104985782A (en) | 2015-07-07 | 2015-07-07 | Machining technology for chair plastic armrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104985782A true CN104985782A (en) | 2015-10-21 |
Family
ID=54297731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510396946.9A Pending CN104985782A (en) | 2015-07-07 | 2015-07-07 | Machining technology for chair plastic armrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104985782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729740A (en) * | 2016-03-05 | 2016-07-06 | 苏州立创精密模具科技有限公司 | Injection molding method for scanner shell |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2338666A (en) * | 1998-06-26 | 1999-12-29 | Sprayform Holdings Limited | Tooling production |
| JP2000270901A (en) * | 1999-03-19 | 2000-10-03 | Konsho Ryu | Process for molding foam shoe sole |
| CN1712200A (en) * | 2004-06-15 | 2005-12-28 | 天津三星制刷有限公司 | Production of color sectional brush handle for make up |
| CN101108526A (en) * | 2007-08-17 | 2008-01-23 | 常熟市汽车饰件有限公司 | Double-shot molding method for vehicle internal decoration seat armrest |
| CN101648429A (en) * | 2009-09-03 | 2010-02-17 | 武汉嘉盟塑料制品有限公司 | Method for manufacturing plastic mould of automobile door plate loudspeaker mask |
| CN102476438A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Injection molding method for carbon fiber composite |
| CN102700070A (en) * | 2012-05-31 | 2012-10-03 | 昆山拓安塑料制品有限公司 | Deformation reducing and uniformly cooling injection mold for long and thin handles and production process |
| CN103214776A (en) * | 2013-04-12 | 2013-07-24 | 深圳Tcl新技术有限公司 | Anti-scraping material, television front shell and preparation method of anti-scraping material |
| CN103600476A (en) * | 2013-11-22 | 2014-02-26 | 四川华通特种工程塑料研究中心有限公司 | Preparation process of paper-making polyphenylene sulfide millstone |
| CN103934951A (en) * | 2014-04-03 | 2014-07-23 | 苏州益群模具有限公司 | Injection molding process for car bumpers |
| CN103963209A (en) * | 2014-04-03 | 2014-08-06 | 苏州益群模具有限公司 | Method for producing precise injection mold for automobile wheel covers |
-
2015
- 2015-07-07 CN CN201510396946.9A patent/CN104985782A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2338666A (en) * | 1998-06-26 | 1999-12-29 | Sprayform Holdings Limited | Tooling production |
| JP2000270901A (en) * | 1999-03-19 | 2000-10-03 | Konsho Ryu | Process for molding foam shoe sole |
| CN1712200A (en) * | 2004-06-15 | 2005-12-28 | 天津三星制刷有限公司 | Production of color sectional brush handle for make up |
| CN101108526A (en) * | 2007-08-17 | 2008-01-23 | 常熟市汽车饰件有限公司 | Double-shot molding method for vehicle internal decoration seat armrest |
| CN101648429A (en) * | 2009-09-03 | 2010-02-17 | 武汉嘉盟塑料制品有限公司 | Method for manufacturing plastic mould of automobile door plate loudspeaker mask |
| CN102476438A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Injection molding method for carbon fiber composite |
| CN102700070A (en) * | 2012-05-31 | 2012-10-03 | 昆山拓安塑料制品有限公司 | Deformation reducing and uniformly cooling injection mold for long and thin handles and production process |
| CN103214776A (en) * | 2013-04-12 | 2013-07-24 | 深圳Tcl新技术有限公司 | Anti-scraping material, television front shell and preparation method of anti-scraping material |
| CN103600476A (en) * | 2013-11-22 | 2014-02-26 | 四川华通特种工程塑料研究中心有限公司 | Preparation process of paper-making polyphenylene sulfide millstone |
| CN103934951A (en) * | 2014-04-03 | 2014-07-23 | 苏州益群模具有限公司 | Injection molding process for car bumpers |
| CN103963209A (en) * | 2014-04-03 | 2014-08-06 | 苏州益群模具有限公司 | Method for producing precise injection mold for automobile wheel covers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729740A (en) * | 2016-03-05 | 2016-07-06 | 苏州立创精密模具科技有限公司 | Injection molding method for scanner shell |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20151021 |