CN220784822U - Composite extrusion die - Google Patents
Composite extrusion die Download PDFInfo
- Publication number
- CN220784822U CN220784822U CN202322571375.0U CN202322571375U CN220784822U CN 220784822 U CN220784822 U CN 220784822U CN 202322571375 U CN202322571375 U CN 202322571375U CN 220784822 U CN220784822 U CN 220784822U
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- Prior art keywords
- extrusion die
- die body
- extrusion
- channel
- runner
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- 238000001125 extrusion Methods 0.000 title claims abstract description 129
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- NQHVJMJEWQQXBS-UHFFFAOYSA-N 4-ethoxybenzene-1,3-diamine Chemical compound CCOC1=CC=C(N)C=C1N NQHVJMJEWQQXBS-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a composite extrusion die, comprising: the first extrusion die body is provided with a first extrusion channel and a first flow channel which are communicated with each other; the second extrusion die body is arranged at intervals with the first extrusion die body, and a second extrusion channel is formed in the second extrusion die body; the runner plate is respectively connected with the first extrusion die body and the second extrusion die body, and a runner notch communicated with the first runner groove and the first extrusion channel is formed between the runner plate and the first extrusion die body; the runner plate is provided with a transition channel which is respectively communicated with the first runner groove and the second extrusion channel. The composite extrusion die can simultaneously extrude two materials with different processes, and has the advantages of simple structure, convenient processing and lower cost.
Description
Technical Field
The utility model relates to the technical field of extrusion dies, in particular to a composite extrusion die.
Background
At present, the glass guide groove is influenced by the assembly state and the use environment, a layer of wear-resistant material is required to be sprayed or flocked after the EMPD material is extruded and vulcanized, and the surface flocking and spraying in the conventional process cannot meet the functional requirements, so that a TPV sliding material is required to be used for replacing spraying flocking at the contact position of the product and glass. Because TPV materials are thermoplastic materials, the production process needs to be heated to more than 200 degrees, and rubber is a thermosetting die, the temperature needs to be lower than 100 degrees, so that the original die cannot meet the secondary requirement, and a new composite extrusion die is urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a composite extrusion die to solve the technical problems in the background art.
The utility model provides a composite extrusion die, comprising:
the first extrusion die body is provided with a first extrusion channel and a first flow channel which are communicated with each other;
the second extrusion die body is arranged at intervals with the first extrusion die body, and a second extrusion channel is formed in the second extrusion die body;
the runner plate is respectively connected with the first extrusion die body and the second extrusion die body, the runner plate is provided with a transition channel, and the transition channel is respectively communicated with the first runner groove and the second extrusion channel.
Further, a second runner groove is formed in one side, facing the second extrusion die body, of the runner plate, and the two ends of the second runner groove are respectively provided with the transition channels.
Further, a heating boss is arranged on one side of the second extrusion die body, facing the runner plate, the transition channel penetrates through the heating boss, and the heating boss covers the second runner groove.
Further, a heat insulation groove is formed in the periphery of the place, corresponding to the heating boss, of the runner plate.
Further, a plurality of fixing bosses are arranged on one side of the second extrusion die body, the second extrusion die body is connected with the runner plate through the fixing bosses, and the heights of the fixing bosses are consistent with those of the heating bosses.
Further, a feeding port which is in circulation with the first extrusion channel is arranged on one side, away from the runner plate, of the second extrusion die body, and an interface is arranged on the periphery of the feeding port.
Further, the second extrusion die body is also provided with a mounting hole for mounting the heating rod.
Further, the first extrusion die body comprises a plurality of extrusion dies which are connected with each other, and each extrusion die is internally provided with a first extrusion channel which is communicated with each other.
Further, a plurality of raised platforms are arranged in the first flow channel.
Compared with the prior art, the utility model has the following beneficial effects:
the composite extrusion die can simultaneously extrude two materials with different processes, and has the advantages of simple structure, convenient processing and lower cost.
Drawings
FIG. 1 is a schematic view of a composite extrusion die according to an embodiment of the present utility model;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a schematic view of a first extrusion die body according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a second extrusion die body according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a flow field plate according to an embodiment of the present utility model;
FIG. 6 is an exploded view of a composite extrusion die according to an embodiment of the present utility model;
reference numerals illustrate:
the first extrusion die body 1, the first extrusion channel 11, the first runner channel 12, the boss 13, the second extrusion die body 2, the second extrusion channel 21, the heating boss 22, the fixing boss 23, the interface 24, the mounting hole 25, the runner plate 3, the transition channel 31, the second runner channel 32, and the heat insulation channel 33.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be noted that, the structures, proportions, sizes, etc. shown in the drawings attached to the present utility model are merely used in conjunction with the disclosure of the present utility model, and are not intended to limit the applicable limitations of the present utility model, so that any modification of the structures, variation of the proportions, or adjustment of the sizes, without affecting the efficacy and achievement of the present utility model, should fall within the scope of the disclosure of the present utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
As shown in fig. 1-6, an embodiment of the present utility model provides a composite extrusion die comprising: a first extrusion die body 1, wherein the first extrusion die body 1 is provided with a first extrusion channel 11 and a first flow channel 12 which are communicated with each other; a second extrusion die body 2 arranged at intervals from the first extrusion die body 1, wherein the second extrusion die body 2 is provided with a second extrusion channel 21; the runner plate 3 is respectively connected with the first extrusion die body 1 and the second extrusion die body 2, the runner plate 3 is provided with a transition channel 31, the transition channel 31 is respectively communicated with the first runner groove 12 and the second extrusion channel 21, wherein after the runner plate 3 is connected with the first extrusion die body 1, an upper end opening of the first runner groove 12 is blocked by the runner plate 3, a plurality of runner grooves are formed in the groove wall of the first runner groove 12, and materials extruded by the second extrusion die body 2 are extruded through the runner grooves.
In this embodiment, the first extrusion die body 1 and the second extrusion die body 2 are respectively connected with an EMPD extruder and a TPV extruder through connectors, then materials respectively enter the first extrusion channel 11 and the second extrusion channel 21 through a feed inlet, the EMPD is extruded through the outlet of the first extrusion channel 11, and simultaneously the TPV flows into the EMPD through the second extrusion channel 21 from the first runner duct 12, thereby realizing the composite co-extrusion of the TPV on the EMPD.
As shown in fig. 5, in this embodiment, a second runner groove 32 is formed on a side of the runner plate 3 facing the second extrusion die body 2, two ends of the second runner groove 32 are respectively provided with the transition channels 31, and two transition channels 31 are provided to more uniformly distribute the flow of the extrusion material, so as to reduce the non-uniformity in the runner, avoid the accumulation or stagnation of the material, and reduce the possible defects, and simultaneously, a plurality of transition channels 31 can provide greater flexibility to adjust the flow distribution under different production conditions so as to meet different production requirements.
As shown in fig. 4, in this embodiment, a heating boss 22 is disposed on a side of the second extrusion die body 2 facing the runner plate 3, the transition channel 31 penetrates through the heating boss 22, the heating boss 22 covers the second runner groove 32 to heat the material in the second runner groove 32, and the heating boss 22 maintains the TPV in the second runner groove 32 within a certain temperature range, so as to better control the flowability and molding characteristics thereof.
As shown in fig. 5, in this embodiment, the periphery of the runner plate 3 corresponding to the heating boss 22 is provided with a heat insulation groove 33, and the heat insulation groove 33 may be used to guide the heating medium to flow through the heating boss 22, so as to transfer heat to the TPV material in the second runner groove 32, and reduce heat conduction in the runner plate 3.
As shown in fig. 4, in this embodiment, a plurality of fixing bosses 23 are disposed on one side of the second extrusion die body 2, the second extrusion die body 2 is connected with the runner plate 3 through the fixing bosses 23, the height of the fixing bosses 23 is consistent with that of the heating bosses 22, the fixing bosses 23 may be connected by fixing screws, so that disassembly and assembly of the die are more convenient, maintenance and repair work are simplified, if parts are required to be replaced or maintenance is performed, the fixing bosses 23 may help to quickly and accurately reassemble the die, and meanwhile, gaps are formed between the second extrusion die body 2 and the runner plate 3 through the fixing bosses 23, so that the extrusion temperature of the first extrusion die body 1 is affected, additional support and stability are provided, and the die can be ensured to work normally.
In this embodiment, as shown in fig. 4, a feeding port is disposed on a side of the second extrusion die body 2 facing away from the runner plate 3 and in communication with the first extrusion channel 11, and an interface 24 is disposed on an outer periphery of the feeding port, where the interface 24 is used to connect with a TPV extruder.
As shown in fig. 4, in this embodiment, the second extrusion die body 2 is further provided with a mounting hole 25 for mounting a heating rod, and the heating rod heats the second extrusion die body 2, so as to heat the material during production, and in addition, a temperature control probe is further provided on the second extrusion die body 2 to monitor the heating temperature, so as to avoid too high or too low temperature.
In this embodiment, as shown in fig. 3, the first extrusion die body 1 includes a plurality of extrusion dies connected to each other, each extrusion die is provided with a first extrusion channel 11 connected to each other, and the extrusion dies may be connected by conventional fasteners such as bolts and positioning pins, so as to ensure the precision of the fit between the extrusion dies and ensure the continuity of the extruded material.
As shown in fig. 3, in this embodiment, the first runner groove 12 is provided with a plurality of raised platforms 13, where the raised platforms 13 can help to uniformly distribute the flow and temperature of the extruded material, so as to reduce the non-uniformity inside the runner, further improve the flowability of the extruded material, help to avoid stagnation or accumulation of the material, and reduce possible defects, and the raised platforms 13 can introduce a certain degree of shearing action, help to improve the dispersibility and miscibility of the material, ensure the uniformity and quality of the final composition, and in addition, by adjusting the shape and size of the boss, the flow path and speed of the extruded material in the runner can be changed, thereby affecting the appearance and performance of the product, and also can realize control of the distribution of the material by adjusting the position and shape of the boss.
In this embodiment, the first extrusion die body 1, the second extrusion die body 2 and the runner plate 3 are respectively fixed by bolts, and in other preferred embodiments, conventional fasteners such as positioning pins and the like may be further disposed between the first extrusion die body 1, the second extrusion die body 2 and the runner plate 3 for fixing connection, so as to improve the precision of matching between the first extrusion die body 1, the second extrusion die body 2 and the runner plate 3, wherein the sealing between the first extrusion die body 1, the second extrusion die body 2 and the runner plate 3 is achieved by tightening contact surfaces thereof, thereby improving the tightness between the first extrusion die body 1, the second extrusion die body 2 and the runner plate 3.
In this embodiment, the structural shapes of the first extrusion channel 11, the second extrusion channel 21, the first runner channel 12, the second runner channel 32, the heating boss 22, the fixing boss 23, and the boss 13 may be designed to be varied according to actual needs, and no limitation is imposed in the description in this embodiment.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (9)
1. A composite extrusion die, comprising:
the first extrusion die body is provided with a first extrusion channel and a first flow channel which are communicated with each other;
the second extrusion die body is arranged at intervals with the first extrusion die body, and a second extrusion channel is formed in the second extrusion die body;
the runner plate is respectively connected with the first extrusion die body and the second extrusion die body, the runner plate is provided with a transition channel, and the transition channel is respectively communicated with the first runner groove and the second extrusion channel.
2. The composite extrusion die of claim 1, wherein a second runner channel is formed in a side of the runner plate facing the second extrusion die body, and the transition channels are respectively formed at two ends of the second runner channel.
3. The composite extrusion die of claim 2, wherein a heating boss is disposed on a side of the second extrusion die body facing the flow field plate, the transition channel extends through the heating boss, and the heating boss covers the second flow channel.
4. A composite extrusion die as claimed in claim 3 wherein a heat insulation groove is provided on the periphery of the runner plate corresponding to the heating boss.
5. A composite extrusion die as claimed in claim 3, wherein a plurality of fixing bosses are provided on one side of the second extrusion die body, the second extrusion die body is connected to the runner plate through the fixing bosses, and the height of the fixing bosses is identical to the height of the heating bosses.
6. A composite extrusion die as claimed in claim 3 wherein a side of said second extrusion die body facing away from said flow field plate is provided with a feed port in flow communication with said first extrusion channel, and an interface is provided at the periphery of said feed port.
7. A composite extrusion die as claimed in claim 3 wherein said second extrusion die body is further provided with mounting holes for mounting heating rods.
8. A composite extrusion die as claimed in any one of claims 1 to 7 wherein a plurality of raised lands are provided in said first flow channel.
9. A composite extrusion die according to any one of claims 1 to 7, wherein the first extrusion die body comprises a plurality of interconnected extrusion dies, each of the extrusion dies having first extrusion channels therein in communication with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322571375.0U CN220784822U (en) | 2023-09-21 | 2023-09-21 | Composite extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322571375.0U CN220784822U (en) | 2023-09-21 | 2023-09-21 | Composite extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220784822U true CN220784822U (en) | 2024-04-16 |
Family
ID=90634016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322571375.0U Active CN220784822U (en) | 2023-09-21 | 2023-09-21 | Composite extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220784822U (en) |
-
2023
- 2023-09-21 CN CN202322571375.0U patent/CN220784822U/en active Active
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