CN213035249U - Multi-head extrusion molding nose bridge batten die - Google Patents
Multi-head extrusion molding nose bridge batten die Download PDFInfo
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- CN213035249U CN213035249U CN202021089719.4U CN202021089719U CN213035249U CN 213035249 U CN213035249 U CN 213035249U CN 202021089719 U CN202021089719 U CN 202021089719U CN 213035249 U CN213035249 U CN 213035249U
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Abstract
The utility model discloses a multi-head extrusion nose bridge batten die, which comprises a die body, wherein the end part of the die body is concavely formed with a round platform-shaped extrusion cavity, the large-diameter end of the extrusion cavity is the end part of the die body, and a plurality of extrusion molding channels are arranged at the bottom of the extrusion cavity; the inner wall of the extrusion molding channel is provided with a cylindrical forming die; the outer wall of the forming die is attached to the inner wall of the extrusion molding channel, a conical cavity is formed in the end part, facing the first end of the forming die, of the conical head, and an end cover is arranged at the second end of the forming die to fix the forming die in the extrusion molding channel; a forming channel penetrates through the bottom of the conical cavity, the outline of the end face of the forming channel is rectangular, and an end hole is formed in the end cover so that the forming channel is communicated with the outside of the second end of the forming die; the utility model discloses a multiunit forming die once can many bridge of the nose layering of continuous molding, has increased the production efficiency of bridge of the nose layering, and the shaping is smooth and the shaping quality is excellent.
Description
Technical Field
The utility model relates to a plastics extrusion moulding mould especially relates to a bull extrusion molding bridge of nose layering mould.
Background
The nose bridge trim strip is a strip applied to the mask to realize the fit between the mask face and the nose bridge, and generally comprises a full-plastic nose bridge trim strip, an aluminum nose bridge trim strip and a plastic-covered wire nose bridge trim strip, the latter two are made of metal or all metal materials, so that the metal is not easy to recover when the waste mask is treated, and the full-plastic nose bridge trim strip production process is gradually adopted in the market.
At present, the all-plastic nose bridge trim strips on the market are extruded and molded by a spiral extruder, and an extrusion die of the all-plastic nose bridge trim strip can only extrude a single nose bridge trim strip, so that the output and the efficiency of the nose bridge trim strip are not improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a bull extrusion molding bridge of the nose layering mould for producing plastic bridge of the nose layering to realize many bridge of the nose layering of simultaneous extrusion moulding.
The purpose of the utility model is realized through the following technical scheme:
a multi-head extrusion nose bridge batten die comprises a die body, wherein a round-table-shaped extrusion cavity is formed in the end part of the die body in a concave mode, the large-diameter end of the extrusion cavity is the end part of the die body, and a plurality of extrusion molding channels are formed in the bottom of the extrusion cavity; the inner wall of the extrusion molding channel is provided with a cylindrical forming die;
the outer wall of the forming die is attached to the inner wall of the extrusion molding channel, a conical cavity is formed in the end part, facing the first end of the forming die, of the conical head, and an end cover is arranged at the second end of the forming die to fix the forming die in the extrusion molding channel; the conical cavity bottom is provided with the shaping passageway in a penetrating manner, shaping passageway terminal surface profile is the rectangle form, has seted up the end hole on the end cover and has made shaping passageway and forming die second end outside intercommunication.
In some preferred embodiments, the bottom of the extrusion chamber is further provided with a conical head, and the extrusion channels are uniformly arranged around the conical head.
In some preferred embodiments, an annular first water-cooling cavity is coaxially arranged on the outer wall of the extrusion cavity, and a first water inlet and a first water outlet are arranged on the outer wall of the first water-cooling cavity.
In some preferred embodiments, the nose bridge pressing strip die further comprises a second water-cooling cavity, the extrusion molding channels are all pipelines communicated with the bottom of the extrusion cavity, two ends of each extrusion molding channel penetrate through the second water-cooling cavity, the outer wall of each extrusion molding channel is hermetically connected with a through hole of the second water-cooling cavity, a second water inlet and a second water outlet are formed in the second water-cooling cavity, and the second water outlet is communicated with the first water inlet.
In some preferred embodiments, a spacer is arranged between the outer wall of the second water cooling cavity and the outer wall of the first water cooling cavity.
In some preferred embodiments, the end of the die body is flanged for mounting on an extruder.
In some preferred embodiments, the forming mold is divided into two mold halves along the axial direction, and the forming channel is formed by splicing grooves on the inner walls of the two mold halves.
In some preferred embodiments, the end cap is screwed to the outer wall of the extrusion channel, and the second end of the forming die is provided with a collar having an outer diameter matching the inner wall of the end cap to abut the collar between the end cap and the end of the extrusion channel.
In some preferred embodiments, the length of the hypotenuse of the rectangular profile of the end face of the profiled passage is less than the diameter of the end hole.
In some preferred embodiments, the second end of the forming die is centrally provided with a protrusion, the forming channel extends through the protrusion to extend to the outside of the end cap, and the protrusion has a cylindrical shape and an outer diameter smaller than the inner diameter of the end hole.
The utility model has the advantages of it is following:
the utility model discloses a bull extrusion molding bridge of nose layering mould, including the mould body, mould body tip sunken shaping has the extrusion chamber of round platform form, and the big footpath end in extrusion chamber is mould body tip, and a plurality of extrusion molding passageways have been seted up to extrusion chamber bottom, and after this mould was installed on the extruder, the extrusion intracavity wall reduces gradually and makes the melting of piling up at the bottom of the chamber mould more closely knit with the melting of entering extrusion molding passageway inner wall;
a forming die is arranged in the extrusion molding channel, a tapered cavity is formed in the end part of the first end of the forming die and is used for further extruding molten plastic entering the forming channel, and the forming channel is rectangular and can directly and continuously form the nose bridge pressing strip; the utility model discloses a multiunit forming die once can many bridge of the nose layering of continuous molding, has increased the production efficiency of bridge of the nose layering, and the shaping is smooth and the shaping quality is excellent.
Drawings
FIG. 1 is a perspective view A of the nose bridge molding die of the present invention;
FIG. 2 is a perspective view B of the nose bridge molding die of the present invention;
FIG. 3 is a sectional view of the nose bridge molding die of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a perspective view a of the forming mechanism of the nose bridge molding die of the present invention;
fig. 6 is a perspective view B of the forming mechanism of the nose bridge molding die of the present invention;
in the figure: 1-flange plate, 2-die body, 200-extrusion cavity, 210-conical head, 220-first extrusion part, 221-first water inlet, 222-first water outlet, 223-first water cooling cavity, 230-second extrusion part, 231-second water inlet, 232-second water outlet, 233-second water cooling cavity, 3-forming mechanism, 300-extrusion channel, 310-forming die, 311-die flap, 312-conical cavity, 313-convex ring, 320-forming channel, 330-convex part, 340-end cover, 341-end hole and 4-spacer.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1-6, a multi-head extrusion nose bridge batten die comprises a disc-shaped die body 2, wherein a flange 1 is arranged at the end of the die body 2 to be mounted on an extruder, a truncated cone-shaped extrusion cavity 200 is formed in the center of the end of the die body 1 in a concave manner, the large-diameter end of the extrusion cavity 200 is the end of the die body 2, and the large-diameter end is the bottom of the extrusion cavity 200; a plurality of extrusion molding passageways 300 have been seted up to extrusion chamber 200 bottom for in the extruder extrusion process, melt and mould constantly the compression when getting into the extrusion chamber 200 that reduces gradually and pile up, pile up closely knit in extrusion chamber 200 bottom, reduce to melt the production of moulding interior vacuole, extrusion chamber 200 bottom is equipped with a plurality of extrusion molding passageways 300, a plurality of extrusion molding passageways 300 are the pipeline that switches on with extrusion chamber 200 bottom.
In a preferred embodiment, the bottom of the extrusion chamber 200 is further provided with a conical head 210 to further increase the difference in inner diameter between the two ends of the extrusion chamber 200, and the extrusion channels 300 are uniformly arranged at the bottom of the extrusion chamber 200 around the conical head 210.
The second end of the forming mold 310 is provided with an end cover 340 for fixing the forming mold 310 in the extrusion molding channel 300, and the end cover 340 is provided with an end hole 341 for communicating the forming channel 320 with the second end of the forming mold 310, specifically: end cover 340 and extrusion molding passageway 300 outer wall threaded connection, forming die 310 second end tip is equipped with bulge loop 313, and the outside diameter of bulge loop 313 matches with end cover 340 inner wall, screws end cover 340 in order to butt bulge loop 313 between end cover 340 tip and extrusion molding passageway 300 tip, realizes the fixed to whole forming die 310, and the dismouting of being convenient for.
In a preferred embodiment, the nose bridge depression bar mold further comprises second water-cooling cavities 233, two ends of each group of extrusion channels 300 penetrate through the second water-cooling cavities 233, the outer walls of the extrusion channels 300 are hermetically connected with the penetrating holes of the second water-cooling cavities 233, and the second water-cooling cavities 233 are provided with second water inlets 231 and second water outlets 232 so as to cool the extrusion channels 300 and accelerate the extrusion molding of the molding mold 310.
In addition, in another preferred embodiment, an annular first water-cooling chamber 223 is coaxially arranged on the outer wall of the extrusion chamber 200, a first water inlet 221 and a first water outlet 222 are arranged on the outer wall of the first water-cooling chamber 223, and a second water outlet 232 is communicated with the first water inlet 221, so that cooling water in the second water-cooling chamber 233 flows into the first water-cooling chamber 223 to continue to preliminarily cool the melt-molding in the extrusion chamber 200; and a spacer region 4 is also arranged between the outer wall of the second water-cooling cavity 233 and the outer wall of the first water-cooling cavity 223, so that the two water-cooling cavities are not in direct contact.
In order to facilitate the processing of the forming mold 310, the forming mold 310 is divided into two sets of mold halves 311 uniformly along the axial direction, that is, the forming mold 310 is formed by splicing the two sets of mold halves 311, the forming channel 320 is formed by splicing grooves processed on the inner walls of the two sets of mold halves 311, and the length of the bevel edge of the rectangular outline of the end surface of the forming channel 320 is smaller than the diameter of the end hole 341.
In some preferred embodiments, the forming mold 310 is provided with a protrusion 330 at the center of the second end, the protrusion 330 is cylindrical and has an outer diameter smaller than the inner diameter of the end hole 341, the protrusion 330 extends to the outside of the end hole 341, the forming passage 320 is located in the protrusion 330, and the forming passage 320 extends through the protrusion 330 to extend to the outside of the end cap 340.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a bull extrusion molding nose bridge layering mould which characterized in that: the die comprises a die body (2), wherein a truncated cone-shaped extrusion cavity (200) is formed in the end part of the die body (2) in a sunken mode, the large-diameter end of the extrusion cavity (200) is the end part of the die body (2), and a plurality of extrusion molding channels (300) are formed in the bottom of the extrusion cavity (200); a cylindrical forming die (310) is arranged on the inner wall of the extrusion molding channel (300);
the outer wall of the forming die (310) is attached to the inner wall of the extrusion molding channel (300), a conical cavity (312) is formed in the end portion, facing the first end of the forming die (310) of the conical head (210), of the forming die, and an end cover (340) is arranged at the second end of the forming die (310) to fix the forming die (310) in the extrusion molding channel (300); the bottom of the conical cavity (312) is provided with a forming channel (320) in a penetrating mode, the outline of the end face of the forming channel (320) is rectangular, and an end hole (341) is formed in the end cover (340) to enable the forming channel (320) to be communicated with the outside of the second end of the forming die (310).
2. The multi-headed extruded nose bridge molding die of claim 1, wherein: the bottom of the extrusion cavity (200) is also provided with a conical head (210), and the extrusion molding channels (300) are uniformly distributed around the conical head (210).
3. The multi-headed extruded nose bridge molding die of claim 1 or 2, wherein: the outer wall of the extrusion cavity (200) is coaxially provided with an annular first water cooling cavity (223), and the outer wall of the first water cooling cavity (223) is provided with a first water inlet (221) and a first water outlet (222).
4. The multi-headed extruded nose bridge molding die of claim 3, wherein: bridge of nose layering mould still includes second water-cooling chamber (233), a plurality of extrusion molding passageway (300) are the pipeline that switches on with extrusion chamber (200) bottom, and every group extrusion molding passageway (300) both ends all run through second water-cooling chamber (233), and sealing connection between extrusion molding passageway (300) outer wall and second water-cooling chamber (233) through hole is equipped with second water inlet (231) and second delivery port (232) on second water-cooling chamber (233), second delivery port (232) and first water inlet (221) intercommunication.
5. The multi-headed extruded nose bridge molding die of claim 4, wherein: and a spacer region (4) is arranged between the outer wall of the second water-cooling cavity (233) and the outer wall of the first water-cooling cavity (223).
6. The multi-headed extruded nose bridge molding die of claim 1, wherein: the end part of the die body (2) is provided with a flange plate (1) to be installed on an extruder.
7. The multi-headed extruded nose bridge molding die of claim 1, wherein: the forming die (310) is evenly divided into two groups of die halves (311) along the axial direction, and the forming channel (320) is formed by splicing grooves in the inner walls of the two groups of die halves (311).
8. The multi-headed extruded nose bridge molding die of claim 4, wherein: the end cover (340) is in threaded connection with the outer wall of the extrusion molding channel (300), a convex ring (313) is arranged at the second end of the forming die (310), and the outer diameter of the convex ring (313) is matched with the inner wall of the end cover (340) so that the convex ring (313) is abutted between the end of the end cover (340) and the end of the extrusion molding channel (300).
9. The multi-headed extruded nose bridge molding die of claim 8, wherein: the length of the hypotenuse of the rectangular outline of the end face of the forming channel (320) is smaller than the diameter of the end hole (341).
10. The multi-headed extruded nose bridge molding die of claim 9, wherein: the center of the second end of the forming die (310) is provided with a protruding part (330), the forming channel (320) penetrates through the protruding part (330) to extend to the outer side of the end cover (340), and the protruding part (330) is cylindrical and the outer diameter of the protruding part is smaller than the inner diameter of the end hole (341).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021089719.4U CN213035249U (en) | 2020-06-12 | 2020-06-12 | Multi-head extrusion molding nose bridge batten die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021089719.4U CN213035249U (en) | 2020-06-12 | 2020-06-12 | Multi-head extrusion molding nose bridge batten die |
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| CN213035249U true CN213035249U (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021089719.4U Active CN213035249U (en) | 2020-06-12 | 2020-06-12 | Multi-head extrusion molding nose bridge batten die |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131884A (en) * | 2021-11-29 | 2022-03-04 | 宁波建强汽车部件有限公司 | Automobile sealing strip forming die |
| CN116924861A (en) * | 2023-07-13 | 2023-10-24 | 山西北方兴安化学工业有限公司 | Auxiliary device for pressing medicine for screw press forming die |
-
2020
- 2020-06-12 CN CN202021089719.4U patent/CN213035249U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131884A (en) * | 2021-11-29 | 2022-03-04 | 宁波建强汽车部件有限公司 | Automobile sealing strip forming die |
| CN114131884B (en) * | 2021-11-29 | 2023-11-14 | 宁波建强汽车部件有限公司 | Automobile sealing strip forming die |
| CN116924861A (en) * | 2023-07-13 | 2023-10-24 | 山西北方兴安化学工业有限公司 | Auxiliary device for pressing medicine for screw press forming die |
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