CN104057593A - Extrusion die of PVC foam board - Google Patents
Extrusion die of PVC foam board Download PDFInfo
- Publication number
- CN104057593A CN104057593A CN201310288600.8A CN201310288600A CN104057593A CN 104057593 A CN104057593 A CN 104057593A CN 201310288600 A CN201310288600 A CN 201310288600A CN 104057593 A CN104057593 A CN 104057593A
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- CN
- China
- Prior art keywords
- extrusion die
- cope match
- plate pattern
- compression unit
- die plate
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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
-
- 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
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extrusion die of a PVC foam board. The extrusion die comprises an upper die plate and a lower die plate, wherein a die orifice and a runner are formed on joint faces between the upper die plate and the lower die plate; precooling plates are arranged on the sides of the upper die plate and the lower die plate; the upper die plate adopts an integrated structure; the joint faces between the upper die plate and the lower die plate are symmetrically arranged; the die orifice is bulge-shaped, a discharging hole between the precooling plates is also bulge-shaped, and the discharging hole and the die orifice are in butt joint to form a long bulge shape. The extrusion die of the PVC foam board can be used for producing the PVC foam board, so as to reaching the purposes of improving the production efficiency, reducing production cost, ensuring the degree of finish for the surface of a board crust layer and the uniformity for the density of an interlayer, and greatly improving the quality of the product.
Description
Technical field
The present invention relates to a kind of mould, be specifically related to a kind of PVC foamed board extrusion die.
Background technology
PVC foamed board has the characteristics such as waterproof, fire-retardant, acid and alkali-resistance, mothproof, light weight, insulation, sound insulation, damping, is the ideal substitute of timber, aluminium, composite board, is with a wide range of applications.PVC foamed board is produced by extrusion die, extrusion die before this as shown in Figure 1, is all to comprise cope match-plate pattern 11 and lower bolster 12, is provided with choked flow rod 13 in cope match-plate pattern, for regulating the gap between cope match-plate pattern and lower bolster faying face, thereby regulate the flow of material.On cope match-plate pattern, be also provided with die lip 14, for regulating the sheet material of production different model.
But, when using, existing extrusion die need to adjust the position of choked flow rod and die lip, to adapt to the needs of working condition, be in course of adjustment, can increase percent defective, and improve production cost, the while has also greatly been reduced operating efficiency, simultaneously, when existing extrusion die uses, the technical merit of producing line mold workman is also had to certain requirement, nonetheless, be in course of adjustment, also be still difficult to hold the uniformity of flow, cause the surface of sheet material skinning cortex 21 not bright and clean, easily produce mechanical striped, and sheet material intermediate layer 22 Density inhomogeneities, inside there will be larger pore 23, severe patient also can cause product phenomenon of rupture, schematic diagram as shown in Figure 2, for the effect schematic diagram of the sheet material produced by existing extrusion die, intermediate layer 22 density are easily inhomogeneous, and the middle pore 23 that also there will be a large amount of larger volumes, make product quality low, in addition, mould is provided with choked flow rod and die lip has also increased the complexity of Mold Making, is not easy to keep in repair.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of extrusion die, for the production of PVC foamed board, increase work efficiency to reach, reduce production costs, and ensure the object of product quality.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of PVC foamed board extrusion die, comprise cope match-plate pattern and lower bolster, described cope match-plate pattern and lower bolster faying face form die orifice and runner, described cope match-plate pattern and lower bolster avris are provided with pre-cold drawing, the setting that is structure as a whole of described cope match-plate pattern, and the faying face between described cope match-plate pattern and described lower bolster is symmetrical arranged, described die orifice is horn mouth shape, discharging opening between described pre-cold drawing is horn mouth shape, and described discharging opening docks with described die orifice, forms a long trumpet mouth-shaped.
Preferably, described runner comprises the first compression unit, the first expansion section, the second compression unit, the second expansion section and the 3rd compression unit and the 3rd expansion section.
Preferably, described the first compression unit diameter is 2.0 ㎜; The first expansion section diameter is 18.0mm; The second compression unit diameter is 5.1 ㎜; The second expansion section diameter is 7.9 ㎜; The 3rd compression unit diameter is 3.0 ㎜; The 4th expansion section diameter is 3.6mm.
Preferably, described cope match-plate pattern edge designs for arc line type.
Pass through technique scheme, the disclosed a kind of extrusion die for PVC foamed board production use of the embodiment of the present invention, this mould has omitted a series of adjusting devices of choked flow rod and upper die lip with respect to traditional extrusion die, dispensed a large amount of lock screws, cope match-plate pattern is designed to integral structure, and edge is camber line design, the lines flow smoothly, improve the aesthetic property of whole mould, also reduced mould production cost expense, improved the convenience that mould is safeguarded simultaneously.
Mould inner mould mouth and runner are symmetrical set, die orifice and discharging opening are arranged to horn mouth shape, a series of adjusting devices of old-fashioned upper mould lip are replaced, reach foaming and cooling uniform effect, make sheet material there is certain density uniformity, do not exist compared with gross blow hole, flatness and the fineness of product are ensured, greatly improve product quality, improve the result of use of product, solved old-fashioned mould and gone out after die orifice and discharging foaming suddenly and cause and occur that the defect of striped appears in a large amount of pores or plate face.
The speed that runner has compressed discharging through 3 size design is from large to small even, has replaced the design that carrys out adjust flux with choked flow rod, has ensured the uniformity of die orifice discharging and the fineness of plate surface.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the side view of the disclosed a kind of extrusion die of prior art;
The schematic cross-section that Fig. 2 is the sheet material produced by existing extrusion die;
Fig. 3 is the side view of the disclosed a kind of extrusion die of the embodiment of the present invention;
Fig. 4 is the disclosed a kind of schematic diagram of producing 10mm sheet material of the embodiment of the present invention;
Fig. 5 is the disclosed a kind of schematic diagram of producing 20mm sheet material of the embodiment of the present invention;
The schematic cross-section that Fig. 6 is the sheet material produced by the disclosed extrusion die of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of PVC foamed board extrusion die, as shown in Figure 3, this mould comprises integrated cope match-plate pattern 31 and lower bolster 32, the faying face of cope match-plate pattern 31 and lower bolster 32 forms die orifice 33 and runner 34, cope match-plate pattern 31 and lower bolster 32 avris are provided with pre-cold drawing 35, and die orifice 33 is horn mouth shape, and the discharging opening 36 that pre-cold drawing is 35 is the design of horn mouth shape, discharging opening 36 docks with die orifice 33, forms a long trumpet mouth-shaped.Sheet material in process of production, material flows out and carries out after one step foaming through the die orifice 33 of horn mouth shape, and at discharging opening, 36 places carry out second time of foaming, simultaneously in pre-cooled process, draw material by La Liao mechanism with certain speed, thereby produce the product of different size.
Example as shown in Figure 4, in the time producing the sheet material of 10mm gauge thickness, by adjusting the speed of La Liao mechanism, make the discharging within the scope of the discharging opening adapting to of 10 ㎜ sheet materials 41, as shown in Figure 5, in the time producing the sheet material of 20mm gauge thickness, by adjusting the speed of La Liao mechanism, make 20 ㎜ sheet material 51 dischargings within the scope of whole discharging opening, in like manner, while producing the product of other gauge thickness, by adjusting the different material speed of drawing, make product utilization effectively discharging opening scope carry out discharging, thereby substituted the step that die lip regulates, greatly improved operating efficiency.
The faying face of cope match-plate pattern 31 and lower bolster 32 is symmetrical arranged, and the runner that its faying face forms becomes to be symmetrical arranged with die orifice automatically.Runner comprises the first compression unit 341, the first expansion section 342, the second compression unit 343, the second expansion section 344 and the 3rd compression unit 345 and the 3rd expansion section 346.As a preferred embodiment, wherein, the first compression unit diameter is 2.0 ㎜, and the first expansion section diameter is 18.0mm; The second compression unit diameter is 5.1 ㎜, and the second expansion section diameter is 7.9 ㎜; The 3rd compression unit diameter is 3.0 ㎜, and the 4th expansion section diameter is 3.6mm.This laterally zygomorphic runner design, the change in size through three expansion with compression, has produced necessary briquetting pressure, substitute the design of adjusting flow and pressure by choked flow rod, make die orifice discharging even, easily control the flatness of product, improved product quality.
It should be noted that, the size of above-mentioned runner is only the present invention's one preferred embodiment, in actual production environment, can be designed to as requested other size, and to this, the present invention does not do any restriction.
To sum up, the disclosed a kind of extrusion die for PVC foamed board production use of the embodiment of the present invention, this mould has omitted choked flow rod and upper die lip adjusting device with respect to traditional extrusion die, dispensed a large amount of clamping screws, cope match-plate pattern becomes integral structure, and edge is camber line design, the lines flow smoothly, improve the aesthetic property of whole mould, also reduced mould production cost expense, improved the convenience that mould is safeguarded simultaneously.
The speed that runner has compressed discharging through 3 size design is from large to small even, has replaced the design that carrys out adjust flux with choked flow rod, has ensured the uniformity of die orifice discharging and the fineness of plate surface.
Mould inner mould mouth and runner are symmetrical set, and die orifice and discharging opening are arranged to horn mouth shape, have replaced a series of adjusting devices of old-fashioned upper mould lip.Material carries out one step foaming through the die orifice of horn mouth shape, carry out second time of foaming through discharging opening, reach the effect of uniform in foaming, prevented that traditional moulds from causing inner generation compared with the situation of gross blow hole at discharging opening one step foaming, ensured the uniformity of sheet material intermediate layer density.Product effect schematic diagram as shown in Figure 6, intermediate layer 61 density of sheet material have certain uniformity, do not exist compared with gross blow hole, have ensured flatness and the fineness of product, have greatly improved product quality, have improved the result of use of product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a PVC foamed board extrusion die, comprise cope match-plate pattern and lower bolster, described cope match-plate pattern and lower bolster faying face form die orifice and runner, and described cope match-plate pattern and lower bolster avris are provided with pre-cold drawing, it is characterized in that, the setting that is structure as a whole of described cope match-plate pattern, faying face between described cope match-plate pattern and described lower bolster is symmetrical arranged, and described die orifice is horn mouth shape, and the discharging opening between described pre-cold drawing is horn mouth shape, described discharging opening docks with described die orifice, forms a long trumpet mouth-shaped.
2. a kind of PVC foamed board extrusion die according to claim 1, is characterized in that, described runner comprises the first compression unit, the first expansion section, the second compression unit, the second expansion section and the 3rd compression unit and the 3rd expansion section.
3. a kind of PVC foamed board extrusion die according to claim 2, is characterized in that, described the first compression unit diameter is 2.0 ㎜; The first expansion section diameter is 18.0mm; The second compression unit diameter is 5.1 ㎜; The second expansion section diameter is 7.9 ㎜; The 3rd compression unit diameter is 3.0 ㎜; The 4th expansion section diameter is 3.6mm.
4. a kind of PVC foamed board extrusion die according to claim 1, is characterized in that, described cope match-plate pattern edge designs for arc line type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288600.8A CN104057593A (en) | 2013-07-10 | 2013-07-10 | Extrusion die of PVC foam board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288600.8A CN104057593A (en) | 2013-07-10 | 2013-07-10 | Extrusion die of PVC foam board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104057593A true CN104057593A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310288600.8A Pending CN104057593A (en) | 2013-07-10 | 2013-07-10 | Extrusion die of PVC foam board |
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| CN (1) | CN104057593A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210083A (en) * | 2014-09-26 | 2014-12-17 | 德清久特建材有限公司 | PVC foam board extrusion device |
| CN104309050A (en) * | 2014-09-26 | 2015-01-28 | 德清久特建材有限公司 | Lower template of PVC foam board's extrusion die |
| CN104339518A (en) * | 2014-09-26 | 2015-02-11 | 德清久特建材有限公司 | Upper template of PVC foam board extrusion mould |
| CN104385554A (en) * | 2014-09-26 | 2015-03-04 | 德清久特建材有限公司 | PVC foaming sheet extrusion mold |
| CN113829603A (en) * | 2021-09-29 | 2021-12-24 | 宜兴留森模具制造有限公司 | Double-flow-channel PVC (polyvinyl chloride) foaming plate die without splicing seams |
| CN114102962A (en) * | 2021-11-16 | 2022-03-01 | 宜兴留森模具制造有限公司 | SPC in-mold composite co-extrusion foaming floor mold |
| CN114211726A (en) * | 2021-12-16 | 2022-03-22 | 张家港江苏科技大学产业技术研究院 | Foaming extrusion die |
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| JP2002005993A (en) * | 2000-06-19 | 2002-01-09 | Yokogawa Electric Corp | Self-weight dropping type handler |
| CN1628019A (en) * | 2002-06-17 | 2005-06-15 | 福村三树郎 | Foam forming die, and method of mfg. foam formed product using die |
| CN2749664Y (en) * | 2004-11-18 | 2006-01-04 | 连云港杰瑞模具技术有限公司 | Surface co-extruding sandwich layer foaming extrusion dies |
| CN101687361A (en) * | 2007-06-27 | 2010-03-31 | 旭玻璃纤维股份有限公司 | Foam board of polyolefin resin, and method for production thereof |
| CN203410004U (en) * | 2013-07-10 | 2014-01-29 | 苏州市富美森新材料有限公司 | Extrusion die of PVC (polyvinyl chloride) foam board |
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2013
- 2013-07-10 CN CN201310288600.8A patent/CN104057593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005993A (en) * | 2000-06-19 | 2002-01-09 | Yokogawa Electric Corp | Self-weight dropping type handler |
| CN1628019A (en) * | 2002-06-17 | 2005-06-15 | 福村三树郎 | Foam forming die, and method of mfg. foam formed product using die |
| CN2749664Y (en) * | 2004-11-18 | 2006-01-04 | 连云港杰瑞模具技术有限公司 | Surface co-extruding sandwich layer foaming extrusion dies |
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| CN203410004U (en) * | 2013-07-10 | 2014-01-29 | 苏州市富美森新材料有限公司 | Extrusion die of PVC (polyvinyl chloride) foam board |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210083A (en) * | 2014-09-26 | 2014-12-17 | 德清久特建材有限公司 | PVC foam board extrusion device |
| CN104309050A (en) * | 2014-09-26 | 2015-01-28 | 德清久特建材有限公司 | Lower template of PVC foam board's extrusion die |
| CN104339518A (en) * | 2014-09-26 | 2015-02-11 | 德清久特建材有限公司 | Upper template of PVC foam board extrusion mould |
| CN104385554A (en) * | 2014-09-26 | 2015-03-04 | 德清久特建材有限公司 | PVC foaming sheet extrusion mold |
| CN104339518B (en) * | 2014-09-26 | 2016-09-07 | 德清久特建材有限公司 | A kind of cope match-plate pattern of PVC foam plate extrusion die |
| CN104385554B (en) * | 2014-09-26 | 2016-09-07 | 德清久特建材有限公司 | A kind of PVC foam plate extrusion die |
| CN104309050B (en) * | 2014-09-26 | 2016-09-07 | 德清久特建材有限公司 | A kind of lower bolster of PVC foam plate extrusion die |
| CN113829603A (en) * | 2021-09-29 | 2021-12-24 | 宜兴留森模具制造有限公司 | Double-flow-channel PVC (polyvinyl chloride) foaming plate die without splicing seams |
| CN114102962A (en) * | 2021-11-16 | 2022-03-01 | 宜兴留森模具制造有限公司 | SPC in-mold composite co-extrusion foaming floor mold |
| CN114211726A (en) * | 2021-12-16 | 2022-03-22 | 张家港江苏科技大学产业技术研究院 | Foaming extrusion die |
| CN114211726B (en) * | 2021-12-16 | 2023-06-16 | 张家港江苏科技大学产业技术研究院 | Foaming extrusion die |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |
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| RJ01 | Rejection of invention patent application after publication |