CN103978654A - Forming process and forming mold for polyvinyl chloride foamed plastic product - Google Patents
Forming process and forming mold for polyvinyl chloride foamed plastic product Download PDFInfo
- Publication number
- CN103978654A CN103978654A CN201410230529.2A CN201410230529A CN103978654A CN 103978654 A CN103978654 A CN 103978654A CN 201410230529 A CN201410230529 A CN 201410230529A CN 103978654 A CN103978654 A CN 103978654A
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- Prior art keywords
- mould
- die
- mold
- die body
- screw holes
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
Abstract
The invention discloses a forming process and a forming mold for a polyvinyl chloride foamed plastic product. The forming mold sequentially comprises a mold body, a transitional mold, a core rod bracket mold, a convergence mold and a forming opening mold, wherein mold fixing screws and circular positioning pins respectively and sequentially penetrate through fixing screw holes and pin holes of the forming opening mold, the convergence mold, the core rod bracket mold, the transitional mold and the mold body to fixedly connect the forming opening mold, the convergence mold, the core rod bracket mold, the transitional mold and the mold body into a whole. According to the forming process, raw materials are mixed according to a needed proportion, are stirred at high speed and preheated, and are formed by extrusion by virtue of a preheated double-screw machine and the forming mold which is pre-arranged on the double-screw machine; a formed product is cooled by virtue of a cooling water mold and is not prone to deformation, fracture and color change; the forming mold can be used for quickly realizing integrated forming of high molecular plastic base materials such as PVC (polyvinyl chloride) films and wood plastic or ecological wood, and has the advantages of low cost, environmental friendliness and the like.
Description
Technical field
The present invention relates to foam polyvinyl chloride plasthetics field shaping technique, be specifically related to a kind of foam polyvinyl chloride plasthetics moulding process and mould thereof.
Background technology
At present hollow PVC, wood are moulded or its surperficial PVC film of base material such as ecological wooden is after above-mentioned base material machine-shaping, utilize PUR or common glue that PVC film is bonded on above-mentioned base material by coating equipment, make PVC film and above-mentioned base material one.There is process complexity in above-mentioned processing mode, investment is large and need to process the defect such as place and cost of labor height, and utilize PUR or common glue that PVC film is bonded on above-mentioned base material, cannot meet the requirement of environmental protection; And if in the time of the larger hollow profiled base material of above-mentioned base material, can not realize by the way the bonding of PVC film.And due to design reasons such as its composition of raw materials of the above-mentioned processing technology of tradition and moulds, that the product after moulding exists is yielding, easily crisp easy fission and the problem such as easy to change.For addressing the above problem, be necessary to propose a kind of new moulding process and forming die system.
Summary of the invention
For the deficiencies in the prior art, the present invention aims to provide that a kind of cost is low, environmental protection and can realize quickly PVC film and wood is moulded or the base material such as ecological wooden is one-body molded, simultaneously its shaped article not yielding, be difficult for embrittlement and not allochroic foam polyvinyl chloride plasthetics moulding process and mould thereof.
For achieving the above object, the present invention adopts following technical scheme:
A kind of foam polyvinyl chloride plasthetics moulding process, is characterized in that: comprises the following steps,
A, by Corvic, inserts, after lubricant, processing modification agent, plasticizer, stabilizing agent and the allotment of colouring agent desired proportions mix after mixer high-speed stirred and be preheated to 130 DEG C;
B, on dual-screw-stem machine, be pre-installed mould and cooling water mould, by dual-screw-stem machine board preheating temperature to 180 DEG C, locked mode after mould preheating temperature to 200 DEG C;
C, the raw material that has been preheated to the mixing and stirring of 130 DEG C in step a is added to dual-screw-stem machine board, and start dual-screw-stem machine;
D, raw material, after mould foaming, increase the dual-screw-stem machine speed of service, make the raw material of foaming through supercooled water mould cooling forming.
For the mould of above-mentioned a kind of foam polyvinyl chloride plasthetics moulding process, sequentially comprise that die body, stage die, plug prop up shut die, conflux mould and molding port mould, above-mentioned die body comprise the main mould template silk that connects with dual-screw-stem machine raw material output, for cross for feed stream with base material cross sectional shape consistent the first forming hole, be opened in the lip-deep fixed screw holes of die body and be opened in the wherein pin hole on its two corner of diagonal positions of die body;
Stage die comprises transition die body and second forming hole consistent with base material cross sectional shape for crossing for feed stream, be opened in the fixed screw holes on stage die surface and be opened in the wherein pin hole on its two corner of diagonal positions of transition die body; Plug props up shut die and comprises support die body and be fixed on the die mandrel consistent with base material cross sectional shape on support die body, be opened in the lip-deep fixed screw holes of support die body and be opened in the wherein pin hole on its two corner of diagonal positions of support die body;
The mould that confluxes comprises conflux die body and three forming hole consistent with base material cross sectional shape for crossing for feed stream, be opened in the lip-deep fixed screw holes of the die body that confluxes and be opened in the wherein pin hole on one article of its two corner of diagonal positions of die body that confluxes; Molding port mould comprise molding port die body with for for the molding port consistent with base material cross sectional shape of molded output of products, be opened in the lip-deep fixed screw holes of molding port die body and be opened in the wherein pin hole on its two corner of diagonal positions of molding port die body;
Described die body, stage die, plug prop up shut die, conflux mould and its fixed screw holes of molding port mould and pin hole position align mutually, and mould fixed screw and location round pin sequentially prop up shut die, stage die, its fixed screw holes of die body and pin hole through molding port mould, the mould that confluxes, plug respectively and molding port mould, the mould that confluxes, plug are propped up to shut die, stage die, die body be fixedly connected with integral.
Preferably, described die body offers three fixed screw holes respectively at its first forming hole upper and lower; Described stage die also offers three fixed screw holes respectively at its second forming hole upper and lower; Described plug props up shut die and also offers respectively three fixed screw holes at its die mandrel upper and lower; The described mould that confluxes also offers three fixed screw holes respectively at its 3rd forming hole upper and lower; Described molding port mould also offers three fixed screw holes respectively at its molding port upper and lower; Six mould fixed screws sequentially prop up shut die, stage die, its fixed screw holes of die body through molding port mould, the mould that confluxes, plug and molding port mould, the mould that confluxes, plug are propped up to shut die, stage die, die body are fixedly connected with integral.
The present invention has following beneficial effect:
A kind of foam polyvinyl chloride plasthetics moulding process of the present invention and mould thereof, desired proportions is mixed raw material after also high-speed stirred preheating, again by the dual-screw-stem machine of preheating and be contained in advance the mould extrusion molding on dual-screw-stem machine, and carry out cooling by cooling water mould to shaped article, product after moulding is not yielding, be difficult for embrittlement and not easy to change, solved yielding, easy embrittlement that its shaped article of existing technique exists and the problem such as easy to change; Mould can be realized PVC film quickly and wood is moulded or the macromolecule plastic basis material such as ecological wooden is one-body molded, there is the advantages such as cost is low, environmental protection, solved prior art and utilized PUR or common glue PVC film to be bonded in to the problem of the high and not environmental protection of the processed complex, the cost that exist on high molecule plastic base material by coating equipment.
Brief description of the drawings
Fig. 1 is the mould blast structural representation of the present invention's a kind of foam polyvinyl chloride plasthetics moulding process and mould thereof.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the invention will be further described, understands the claimed technological thought of the present invention so that clearer.
A kind of foam polyvinyl chloride plasthetics moulding process, is characterized in that: comprises the following steps,
A, by Corvic, inserts, after lubricant, processing modification agent, plasticizer, stabilizing agent and the allotment of colouring agent desired proportions mix after mixer high-speed stirred and be preheated to 130 DEG C;
B, on dual-screw-stem machine, be pre-installed mould and cooling water mould, by dual-screw-stem machine board preheating temperature to 180 DEG C, locked mode after mould preheating temperature to 200 DEG C;
C, the raw material that has been preheated to the mixing and stirring of 130 DEG C in step a is added to dual-screw-stem machine board, and start dual-screw-stem machine;
D, raw material, after mould foaming, increase the dual-screw-stem machine speed of service, make the raw material of foaming through supercooled water mould cooling forming.
Be illustrated in figure 1 the mould for above-mentioned a kind of foam polyvinyl chloride plasthetics moulding process, sequentially comprise die body 10, stage die 20, plug props up shut die 30, mould 40 and molding port mould 50 conflux, above-mentioned die body 10 comprises the main mould template silk 101 being connected with dual-screw-stem machine raw material output, for first forming hole 102 consistent with base material cross sectional shape of crossing for feed stream, be opened in the lip-deep fixed screw holes of die body 60 and be opened in the wherein pin hole 70 on its two corner of diagonal positions of die body, described die body 10 offers three fixed screw holes 60 respectively at its first forming hole 102 upper and lowers,
Stage die 20 comprises transition die body 201 and second forming hole 202 consistent with base material cross sectional shape for crossing for feed stream, be opened in the fixed screw holes 60 on stage die surface and be opened in the wherein pin hole 70 on its two corner of diagonal positions of transition die body, and described stage die 20 also offers three fixed screw holes 60 respectively at its second forming hole 202 upper and lowers;
Plug props up shut die 30 and comprises support die body 301 and be fixed on the die mandrel 302 consistent with base material cross sectional shape on support die body 301, be opened in the lip-deep fixed screw holes 60 of support die body and be opened in the wherein pin hole 70 on its two corner of diagonal positions of support die body, and described plug props up shut die 30 and also offers respectively three fixed screw holes 60 at its die mandrel 302 upper and lowers;
The mould 40 that confluxes comprises conflux die body 401 and three forming hole consistent with base material cross sectional shape for crossing for feed stream, be opened in the lip-deep fixed screw holes 60 of the die body that confluxes and be opened in the wherein pin hole 70 on one article of its two corner of diagonal positions of die body that confluxes, described in the mould 40 that confluxes also offer respectively three fixed screw holes 60 at its 3rd forming hole upper and lower; Molding port mould 50 comprise molding port die body 501 with for for the molding port 502 consistent with base material cross sectional shape of molded output of products, be opened in the lip-deep fixed screw holes 60 of molding port die body and be opened in the wherein pin hole 70 on its two corner of diagonal positions of molding port die body, described molding port mould 50 also offers three fixed screw holes 60 respectively at its molding port 502 upper and lowers;
Described die body 10, stage die 20, plug prop up shut die 30, conflux mould 40 and molding port mould 50 its fixed screw holes 60 and pin hole 70 positions align mutually, and six mould fixed screws 80 and two location round pins sequentially prop up shut die 30, stage die 20, die body 10 its fixed screw holes 60 and pin hole 70 through molding port mould 50, the mould 40 that confluxes, plug respectively and molding port mould 50, the mould 40 that confluxes, plug are propped up to shut die 30, stage die 20, die body 10 are fixedly connected with integral.
For a person skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and distortion, and these all changes and distortion all should belong to the protection domain of the claims in the present invention within.
Claims (3)
1. a foam polyvinyl chloride plasthetics moulding process, is characterized in that: comprises the following steps,
A, by Corvic, inserts, after lubricant, processing modification agent, plasticizer, stabilizing agent and the allotment of colouring agent desired proportions mix after mixer high-speed stirred and be preheated to 130 DEG C;
B, on dual-screw-stem machine, be pre-installed mould and cooling water mould, by dual-screw-stem machine board preheating temperature to 180 DEG C, locked mode after mould preheating temperature to 200 DEG C;
C, the raw material that has been preheated to the mixing and stirring of 130 DEG C in step a is added to dual-screw-stem machine board, and start dual-screw-stem machine;
D, raw material, after mould foaming, increase the dual-screw-stem machine speed of service, make the raw material of foaming through supercooled water mould cooling forming.
2. for the mould of above-mentioned a kind of foam polyvinyl chloride plasthetics moulding process, it is characterized in that: sequentially comprise die body (10), stage die (20), plug props up shut die (30), mould (40) and molding port mould (50) conflux, above-mentioned die body (10) comprises the main mould template silk (101) being connected with dual-screw-stem machine raw material output, for first forming hole (102) consistent with base material cross sectional shape of crossing for feed stream, be opened in the lip-deep fixed screw holes of die body (60) and be opened in the wherein pin hole (70) on its two corner of diagonal positions of die body,
Stage die (20) comprises transition die body (201) and second forming hole (202) consistent with base material cross sectional shape for crossing for feed stream, be opened in the fixed screw holes (60) on stage die surface and be opened in the wherein pin hole (70) on its two corner of diagonal positions of transition die body;
Plug props up shut die (30) and comprises support die body (301) and be fixed on the die mandrel (302) consistent with base material cross sectional shape on support die body (301), be opened in the lip-deep fixed screw holes of support die body (60) and be opened in the wherein pin hole (70) on its two corner of diagonal positions of support die body;
The mould (40) that confluxes comprises the die body that confluxes (401) and three forming hole consistent with base material cross sectional shape for crossing for feed stream, be opened in the lip-deep fixed screw holes of the die body that confluxes (60) and be opened in the wherein pin hole (70) on one article of its two corner of diagonal positions of die body that confluxes;
Molding port mould (50) comprise molding port die body (501) with for for the molding port (502) consistent with base material cross sectional shape of molded output of products, be opened in the lip-deep fixed screw holes of molding port die body (60) and be opened in the wherein pin hole (70) on its two corner of diagonal positions of molding port die body;
Described die body (10), stage die (20), plug props up shut die (30), align mutually in conflux mould (40) and its fixed screw holes of molding port mould (50) (60) and pin hole (70) position, mould fixed screw (80) and location round pin are respectively sequentially through molding port mould (50), mould (40) confluxes, plug props up shut die (30), stage die (20), its fixed screw holes of die body (10) (60) and pin hole (70) are by molding port mould (50), mould (40) confluxes, plug props up shut die (30), stage die (20), die body (10) is fixedly connected with integral.
3. the mould for above-mentioned a kind of foam polyvinyl chloride plasthetics moulding process as claimed in claim 2, is characterized in that: described die body (10) offers three fixed screw holes (60) respectively at its first forming hole (102) upper and lower; Described stage die (20) also offers three fixed screw holes (60) respectively at its second forming hole (202) upper and lower; Described plug props up shut die (30) and also offers respectively three fixed screw holes (60) at its die mandrel (302) upper and lower; The described mould that confluxes (40) also offers three fixed screw holes (60) respectively at its 3rd forming hole upper and lower; Described molding port mould (50) also offers three fixed screw holes (60) respectively at its molding port (502) upper and lower; Six mould fixed screws (80) sequentially prop up shut die (30), stage die (20), its fixed screw holes of die body (10) (60) through molding port mould (50), the mould that confluxes (40), plug and molding port mould (50), the mould that confluxes (40), plug are propped up to shut die (30), stage die (20), die body (10) are fixedly connected with integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230529.2A CN103978654A (en) | 2014-05-28 | 2014-05-28 | Forming process and forming mold for polyvinyl chloride foamed plastic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230529.2A CN103978654A (en) | 2014-05-28 | 2014-05-28 | Forming process and forming mold for polyvinyl chloride foamed plastic product |
Publications (1)
| Publication Number | Publication Date |
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| CN103978654A true CN103978654A (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410230529.2A Pending CN103978654A (en) | 2014-05-28 | 2014-05-28 | Forming process and forming mold for polyvinyl chloride foamed plastic product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228035A (en) * | 2014-09-30 | 2014-12-24 | 黄石市金鸿模具有限公司 | Moulding and foaming extrusion mould applicable to thick and solid PVC wood-plastic material |
| CN105364120A (en) * | 2015-12-25 | 2016-03-02 | 哈尔滨锅炉厂有限责任公司 | Multiple mutually connected elements with different apertures for guaranteeing hole concentricity and processing method |
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| CN102492242A (en) * | 2011-12-06 | 2012-06-13 | 山东博拓塑业股份有限公司 | Polyvinyl chloride (PVC) wood-plastic board and preparation method thereof |
| US20120308755A1 (en) * | 2010-02-08 | 2012-12-06 | Gorman Michael R | Method of co-extruding, co-extrusion die, and extruded articles made therefrom |
| CN102924848A (en) * | 2012-11-12 | 2013-02-13 | 王四清 | Polyvinylchloride (PVC) plastic wood plank and preparation method thereof |
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2014
- 2014-05-28 CN CN201410230529.2A patent/CN103978654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903926A (en) * | 2006-07-15 | 2007-01-31 | 庄广盛 | Wear resistant type plastic floor and its production technology |
| US20120308755A1 (en) * | 2010-02-08 | 2012-12-06 | Gorman Michael R | Method of co-extruding, co-extrusion die, and extruded articles made therefrom |
| CN102492242A (en) * | 2011-12-06 | 2012-06-13 | 山东博拓塑业股份有限公司 | Polyvinyl chloride (PVC) wood-plastic board and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228035A (en) * | 2014-09-30 | 2014-12-24 | 黄石市金鸿模具有限公司 | Moulding and foaming extrusion mould applicable to thick and solid PVC wood-plastic material |
| CN104228035B (en) * | 2014-09-30 | 2016-08-24 | 黄石市金鸿模具有限公司 | One is applicable to abundant heart PVC wood plastic shaping foam extrusion die |
| CN105364120A (en) * | 2015-12-25 | 2016-03-02 | 哈尔滨锅炉厂有限责任公司 | Multiple mutually connected elements with different apertures for guaranteeing hole concentricity and processing method |
| CN105364120B (en) * | 2015-12-25 | 2017-09-22 | 哈尔滨锅炉厂有限责任公司 | Ensure the multiple connected fittings of different pore size and processing method of hole concentricity |
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Application publication date: 20140813 |