CN203792688U - Extrusion die for improving plastic pipe outer surface quality - Google Patents
Extrusion die for improving plastic pipe outer surface quality Download PDFInfo
- Publication number
- CN203792688U CN203792688U CN201420242100.0U CN201420242100U CN203792688U CN 203792688 U CN203792688 U CN 203792688U CN 201420242100 U CN201420242100 U CN 201420242100U CN 203792688 U CN203792688 U CN 203792688U
- Authority
- CN
- China
- Prior art keywords
- polytetrafluoroethylene
- ptfe
- collar
- extrusion die
- lower bolster
- 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.)
- Expired - Fee Related
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an extrusion die for improving the plastic pipe outer surface quality. The extrusion die comprises a die body, an upper die plate, a lower die plate, a polytetrafluoroethylene lantern ring and a connecting screw, wherein the polytetrafluoroethylene lantern ring is a rotary body, the axial section of the polytetrafluoroethylene lantern ring is in the shape of H, the lower die plate comprises a first round pipe portion and a first flange, a first round ring is arranged on the end face of one side of the first flange, the first round ring tightly clamps one side of the polytetrafluoroethylene lantern ring, the upper die plate comprises a second round pipe portion and a second flange, a second round ring is arranged on the end face of the second flange, the second round ring is arranged opposite to the first round ring and tightly clamps the other side of the polytetrafluoroethylene lantern ring, the outer diameter of the first round pipe portion and the outer diameter of the second round pipe are equal to the inner diameter of the polytetrafluoroethylene lantern ring, the upper die plate and the lower die plate are connected through the connecting screw, the lower die plate is fixedly connected to the die body, and the outer diameter of the polytetrafluoroethylene lantern ring is equal to the outer diameter of the die body. The extrusion die for improving the plastic pipe outer surface quality has the advantages of being high in accuracy and long in service life.
Description
Technical field
The present invention relates to plastics forming technique field, especially relate to a kind of extrusion die that improves outer surface of plastic pipe quality.
Background technology
According to national Specification, the plastic conduit outer surface of extrusion molding should be smooth, smooth, affects the blemish of performance without depression, bubble and other.But in routine check, find that the in esse defect in inner surface of tubing is diversified, as there is bubble and spot pit in rough surface, rough, surface, the mechanical property of these defective effect tubing, especially affect hydrostatic strength and the ring stiffness of tubing, thereby in pipeline engineering, leave hidden danger.
Chinese patent CN202805604U has announced a kind of extrusion neck ring mold that improves polyvinyl piping materials fineness, it has a mouthful mould body, it is characterized in that: add a polytetrafluoroethylplastic plastic at the port of export of mouth mould body, the internal-and external diameter of ring is consistent with mouthful internal-and external diameter of the mould body port of export.
By overall analysis, above-mentioned extrusion neck ring mold has several defects, first, polytetrafluoroethylplastic plastic ring is affixed on mouthful mould body by bolt, the benchmark of location is not accurate enough, the external diameter of plastic hoop easily produces deviation with a mouthful external diameter for mould body tail end, and concentricity is bad, thereby affects the dimensional accuracy of polyvinyl piping materials; Secondly, polytetrafluoroethylplastic plastic ring is affixed to a mouthful mould body by screw, and service time is long, and polytetrafluoroethylplastic plastic ring is easily shifted under the pressure of polyvinyl piping materials, thereby can not ensure polyvinyl piping materials precision, is therefore necessary to be improved.
Summary of the invention
The deficiency existing for above-mentioned prior art, the object of this invention is to provide a kind of extrusion die that improves outer surface of plastic pipe quality, and it is high that it has precision, the feature of long service life.
To achieve these goals, the technical solution adopted in the present invention is: a kind of extrusion die that improves outer surface of plastic pipe quality, it is characterized in that, comprise a mouthful mould, cope match-plate pattern, lower bolster, the polytetrafluoroethylene (PTFE) collar and attachment screw, the described polytetrafluoroethylene (PTFE) collar is revolving body, and its axial cross section is " work " font, described lower bolster comprises the first pipe portion and is arranged on first pipe portion one end and radially protrudes the first ring flange forming, protrude vertically in a side end face of the first ring flange and form the first annulus, one side of the described first annulus clamping polytetrafluoroethylene (PTFE) collar, described cope match-plate pattern comprises the second pipe portion and is arranged on second pipe portion one end and radially protrudes the second ring flange forming, protrude vertically and form the second annulus at the end face of the second ring flange, described the second annulus and the first annulus are oppositely arranged and clamp the opposite side of the polytetrafluoroethylene (PTFE) collar, the internal diameter of described the first pipe portion and the second pipe portion all equates with the external diameter of the polytetrafluoroethylene (PTFE) collar, described cope match-plate pattern is connected by attachment screw with lower bolster, described lower bolster is affixed to a mouthful mould, the internal diameter of the described polytetrafluoroethylene (PTFE) collar equates with the internal diameter of mouthful mould.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, the end of the first pipe portion is protruded vertically and is formed annulus boss, the end of the second pipe portion is recessed to form annular groove vertically, and described annulus boss can insert in annular groove and the external diameter of annulus boss and the internal diameter of annular groove equate.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, the width of the described polytetrafluoroethylene (PTFE) collar is greater than the distance between the first ring flange and the second ring flange opposing end surface.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, the end face of described mouthful of mould is provided with guide ledges vertically, on the other end of the first ring flange, be recessed to form vertically detent, described guide ledges can be inserted in detent, and the internal diameter of detent equates with the external diameter of guide ledges and the height of guide ledges is greater than the degree of depth of detent.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, the internal diameter of described the first ring flange equates with the internal diameter of mouthful mould.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, the internal diameter of described the second ring flange is greater than the internal diameter of the polytetrafluoroethylene (PTFE) collar.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, axial evenly the offering of described lower bolster is no less than the through hole that runs through lower bolster of two and offers counterbore in the end of through hole, on described cope match-plate pattern, offer fixing hole, described attachment screw is connected to cope match-plate pattern on lower bolster through through hole.
In above-mentioned a kind of extrusion die that improves outer surface of plastic pipe quality, on described mouthful of mould, evenly offer several screwed holes, on described lower bolster and cope match-plate pattern, offer corresponding installing hole, bolt is affixed to lower bolster and cope match-plate pattern on mouthful mould through installing hole.
Adopt after said structure, the advantage that compared to the prior art the present invention had is:
1, the first annulus and the second annulus tightly fasten the polytetrafluoroethylene (PTFE) collar, can effectively prevent that the polytetrafluoroethylene (PTFE) collar is in the time of extruded polyethylene tubing, produce distortion or loosening.
2, the internal diameter of the first pipe portion and the second pipe portion all equates with the external diameter of the polytetrafluoroethylene (PTFE) collar, the outer peripheral face of the polytetrafluoroethylene (PTFE) collar can abut on the inner peripheral surface of the first pipe portion and the second pipe portion, can ensure that the polytetrafluoroethylene (PTFE) collar can not be out of shape, displacement, the polyvinyl piping materials external diameter of producing is stable, and surface quality is good.
3, annulus boss can insert in annular groove, ensures good concentricity between cope match-plate pattern and lower bolster, and then ensures the concentricity between the polytetrafluoroethylene (PTFE) collar and cope match-plate pattern and lower bolster, coordinates each other precision, long service life.
4, attachment screw is connected to cope match-plate pattern on lower bolster through through hole, and bolt is affixed to lower bolster and cope match-plate pattern on mouthful mould through installing hole, and mould is easy for installation, and debugging is simple.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is cross-sectional view of the present invention;
In figure: lower bolster 10; The first pipe portion 11; The first ring flange 12; The first annulus 13; Annulus boss 14; Through hole 15; Counterbore 16; Detent 17; Cope match-plate pattern 20; The second pipe portion 21; The second ring flange 22; The second annulus 23; Annular groove 24; Fixing hole 25; Installing hole 26; The polytetrafluoroethylene (PTFE) collar 30; Mouth mould 40; Guide ledges 41; Screwed hole 42; Attachment screw 50; Bolt 60.
Detailed description of the invention
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment, as shown in Figure 1: a kind of extrusion die that improves outer surface of plastic pipe quality, comprise mouthful mould 40, cope match-plate pattern 20, lower bolster 10, the polytetrafluoroethylene (PTFE) collar 30 and attachment screw 50, the polytetrafluoroethylene (PTFE) collar 30 is revolving body, and its axial cross section is " work " font, the internal diameter of the polytetrafluoroethylene (PTFE) collar 30 equates with the internal diameter of mouthful mould 40, lower bolster 10 comprises the first pipe portion 11 and is arranged on first pipe portion 11 one end and radially protrudes the first ring flange 12 forming, the internal diameter of the first ring flange 12 equates with the internal diameter of mouthful mould 40, one side end face of the first ring flange 12 is protruded vertically and is formed the first annulus 13, the first annulus 13 clamps a side of the polytetrafluoroethylene (PTFE) collar 30, one end of the polytetrafluoroethylene (PTFE) collar 30 pushes against on the first ring flange 12, cope match-plate pattern 20 comprises the second pipe portion 21 and is arranged on second pipe portion 21 one end and radially protrudes the second ring flange 22 forming, the internal diameter of the second ring flange 22 is greater than the internal diameter of the polytetrafluoroethylene (PTFE) collar 30, the end face of the second ring flange 22 protrudes vertically and forms the second annulus 23, the second annulus 23 and the first annulus 13 are oppositely arranged and clamp the opposite side of the polytetrafluoroethylene (PTFE) collar 30, the other end of the polytetrafluoroethylene (PTFE) collar 30 pushes against on the second ring flange 22, the internal diameter of the first pipe portion 11 and the second pipe portion 21 all equates with the external diameter of the polytetrafluoroethylene (PTFE) collar 30, and the width of the polytetrafluoroethylene (PTFE) collar 30 is greater than the distance between the first ring flange 12 and the second ring flange 22 opposing end surfaces, the end of the first pipe portion 11 is protruded vertically and is formed annulus boss 14, the end of the second pipe portion 21 is recessed to form annular groove 24 vertically, annulus boss 14 can insert in annular groove 24 and the external diameter of annulus boss 14 equals the internal diameter of annular groove 24.
The both ends of the surface of the polytetrafluoroethylene (PTFE) collar 30 and outer peripheral face are all supported by cope match-plate pattern 20 or lower bolster 10, only remaining inner peripheral surface contacts with polyvinyl piping materials, integral rigidity is good, the polytetrafluoroethylene (PTFE) collar 30 dimensionally stables, thereby can ensure to produce for a long time polyvinyl piping materials, make the outer surface of polyvinyl piping materials good, stable performance, long service life; The first annulus 13 is set and the second annulus 23 fastens the polytetrafluoroethylene (PTFE) collar 30, intensity is high, Stability Analysis of Structures; The external diameter of annulus boss 14 equals the internal diameter of annular groove 24, ensures the concentricity between cope match-plate pattern 20 and lower bolster 10, plays the effect of guiding, and installation accuracy is high, and then ensures the precision of polyvinyl piping materials; The width of the polytetrafluoroethylene (PTFE) collar 30 is greater than the distance between the first ring flange 12 and the second ring flange 22 opposing end surfaces, is conducive to adjust the size of the polytetrafluoroethylene (PTFE) collar 30 inner peripheral surfaces.
Lower bolster 10 axially evenly offer the through hole 15 that several run through, preferably adopting quantity is four through holes 15, offer counterbore 16 in the end of through hole 15, on cope match-plate pattern 20, offer fixing hole 25, attachment screw 50 is affixed to fixing hole 25 through through hole 15, the end of screw is arranged in counterbore 16, thereby lower bolster 10 is connected on cope match-plate pattern 20, and then the polytetrafluoroethylene (PTFE) collar 30 is pressed between lower bolster 10 and cope match-plate pattern 20, the end face of mouth mould 40 is provided with guide ledges 41 vertically, on the other end of the first ring flange 12, be recessed to form vertically detent 17, guide ledges 41 can be inserted in detent 17, the internal diameter of detent 17 equates with the external diameter of guide ledges 41 and the height of guide ledges 41 is greater than the degree of depth of detent 17, can make the blue dish 12 of first method mutually be adjacent to sealing with a mouthful mould 40, on mouth mould 40, evenly offer several screwed holes 42, preferably adopting quantity is four screwed holes 42, on lower bolster 10 and cope match-plate pattern 20, offer corresponding installing hole 26, stagger in the position of installing hole 26 and fixing hole 25 and through hole 15 positions, bolt 60 is affixed to lower bolster 10 and cope match-plate pattern 20 on mouthful mould 40 through installing hole 26.Guide ledges 41 can be inserted in detent 17, has ensured the concentricity between mouthful mould 40 and lower bolster 10, and the precision of whole extrusion die is improved, easy for installation.
Fitting operation step of the present invention:
The polytetrafluoroethylene (PTFE) collar 30 covers are set in the first pipe portion 11 and make the first annulus 13 stick into a side of the polytetrafluoroethylene (PTFE) collar 30, the second pipe portion 21 of cope match-plate pattern 20 is advanced along the outer surface of the polytetrafluoroethylene (PTFE) collar 30, until annulus boss 14 can insert in annular groove 24, the second annulus 23 is tipped the opposite side of the polytetrafluoroethylene (PTFE) collar 30 in, again attachment screw 50 is fixed on fixing hole 25 through through hole 15, thereby lower bolster 10 is fixed on cope match-plate pattern 20, adjusts the pretightning force of attachment screw 50 according to the internal diameter deformation of the polytetrafluoroethylene (PTFE) collar 30; Again mounted cope match-plate pattern 20, the polytetrafluoroethylene (PTFE) collar 30 and lower bolster 10 are established and are installed in guide ledges 41 along detent 17 buttons, and installing hole 26 is aimed at screwed hole 42, in the interior inserting bolt 60 of installing hole 26 fixing, whole extrusion die installs and debugs, produces, easy for installation, precision is high, good stability, long service life.
The extrusion die of plastic pipe is widely used at present, and other structure and principle are same as the prior art, repeat no more here.
Claims (8)
1. one kind is improved the extrusion die of outer surface of plastic pipe quality, it is characterized in that, comprise a mouthful mould, cope match-plate pattern, lower bolster, the polytetrafluoroethylene (PTFE) collar and attachment screw, the described polytetrafluoroethylene (PTFE) collar is revolving body, and its axial cross section is " work " font, described lower bolster comprises the first pipe portion and is arranged on first pipe portion one end and radially protrudes the first ring flange forming, protrude vertically in a side end face of the first ring flange and form the first annulus, one side of the described first annulus clamping polytetrafluoroethylene (PTFE) collar, described cope match-plate pattern comprises the second pipe portion and is arranged on second pipe portion one end and radially protrudes the second ring flange forming, protrude vertically and form the second annulus at the end face of the second ring flange, described the second annulus and the first annulus are oppositely arranged and clamp the opposite side of the polytetrafluoroethylene (PTFE) collar, the internal diameter of described the first pipe portion and the second pipe portion all equates with the external diameter of the polytetrafluoroethylene (PTFE) collar, described cope match-plate pattern is connected by attachment screw with lower bolster, described lower bolster is affixed to a mouthful mould, the internal diameter of the described polytetrafluoroethylene (PTFE) collar equates with the internal diameter of mouthful mould.
2. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1, it is characterized in that: the end of the first pipe portion is protruded vertically and formed annulus boss, the end of the second pipe portion is recessed to form annular groove vertically, and described annulus boss can insert in annular groove and the external diameter of annulus boss and the internal diameter of annular groove equate.
3. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1 and 2, is characterized in that: the width of the described polytetrafluoroethylene (PTFE) collar is greater than the distance between the first ring flange and the second ring flange opposing end surface.
4. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1 and 2, it is characterized in that: the end face of described mouthful of mould is provided with guide ledges vertically, on the other end of the first ring flange, be recessed to form vertically detent, described guide ledges can be inserted in detent, and the internal diameter of detent equates with the external diameter of guide ledges and the height of guide ledges is greater than the degree of depth of detent.
5. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1 and 2, is characterized in that: the internal diameter of described the first ring flange equates with the internal diameter of mouthful mould.
6. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1 and 2, is characterized in that: the internal diameter of described the second ring flange is greater than the internal diameter of the polytetrafluoroethylene (PTFE) collar.
7. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1 and 2, it is characterized in that: axial evenly the offering of described lower bolster is no less than the through hole that runs through lower bolster of two and offers counterbore in the end of through hole, on described cope match-plate pattern, offer fixing hole, described attachment screw is connected to cope match-plate pattern on lower bolster through through hole.
8. a kind of extrusion die that improves outer surface of plastic pipe quality according to claim 1 and 2, it is characterized in that: on described mouthful of mould, evenly offer several screwed holes, on described lower bolster and cope match-plate pattern, offer corresponding installing hole, bolt is affixed to lower bolster and cope match-plate pattern on mouthful mould through installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242100.0U CN203792688U (en) | 2014-05-12 | 2014-05-12 | Extrusion die for improving plastic pipe outer surface quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242100.0U CN203792688U (en) | 2014-05-12 | 2014-05-12 | Extrusion die for improving plastic pipe outer surface quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203792688U true CN203792688U (en) | 2014-08-27 |
Family
ID=51374952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420242100.0U Expired - Fee Related CN203792688U (en) | 2014-05-12 | 2014-05-12 | Extrusion die for improving plastic pipe outer surface quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203792688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274720A (en) * | 2018-04-19 | 2018-07-13 | 湖北统领塑胶科技有限公司 | A kind of mouth mold and mold for plastic pipe molding |
-
2014
- 2014-05-12 CN CN201420242100.0U patent/CN203792688U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274720A (en) * | 2018-04-19 | 2018-07-13 | 湖北统领塑胶科技有限公司 | A kind of mouth mold and mold for plastic pipe molding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203792688U (en) | Extrusion die for improving plastic pipe outer surface quality | |
| CN203629037U (en) | Plastic liner assembly for water heater and water heater provided with plastic liner assembly | |
| CN203792687U (en) | Extrusion die for improving plastic pipe inner surface quality | |
| CN203567159U (en) | Double-wall corrugated pipe extruding machine head | |
| CN105965826A (en) | Multi-section type easy-to-split extrusion mould | |
| CN201695508U (en) | Straight-through check well base | |
| CN204095099U (en) | Support in a kind of hollow extrusion die | |
| CN203876206U (en) | Water ring cooling device for HDPE (High-Density Polyethylene) material extruding die | |
| CN101332659B (en) | Precise forming mold of water lubrication rubber alloy bearing | |
| CN104668978B (en) | Locating device and locating method using same | |
| CN102785306A (en) | One-time molding vulcanizing mold of injection-compression type connector-free rubber belt track | |
| CN203695983U (en) | Device for detecting flatness of workpiece placed at lathe fixture | |
| CN103791006A (en) | Oil feeding and gas discharging structure of all-plastic wheel cylinder of automobile drum brake | |
| CN104260316A (en) | Bracket in hollow extruding mould | |
| CN202402463U (en) | Self-lubricating ball joint of universal rod end | |
| CN204985721U (en) | Sealing washer on plastics tubular product production line | |
| CN206190601U (en) | Novel water pump housing | |
| CN203901734U (en) | Mould rubber outlet rapid connector applicable to resin transfer molding process | |
| CN220464586U (en) | Oil seal injection mold | |
| CN219520206U (en) | Intermittent thread die for engine oil filling pipe end | |
| CN208946604U (en) | A kind of water flowing oblique top bar assembly of injection mould | |
| CN204783617U (en) | Air bleeder | |
| CN204566570U (en) | A kind of master mold of injection mold and injection mold | |
| CN213291032U (en) | Vulcanizing mold for rubber sealing ring of hub bearing | |
| CN203472093U (en) | Novel precise plastic mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |