CN216914753U - Extrusion die capable of automatically adjusting concentricity and extruder - Google Patents
Extrusion die capable of automatically adjusting concentricity and extruder Download PDFInfo
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- CN216914753U CN216914753U CN202220032193.9U CN202220032193U CN216914753U CN 216914753 U CN216914753 U CN 216914753U CN 202220032193 U CN202220032193 U CN 202220032193U CN 216914753 U CN216914753 U CN 216914753U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model is suitable for the technical field of plastic extrusion, and provides an extrusion die and an extruder capable of automatically adjusting concentricity, wherein the extrusion die comprises: die sleeve; the mold core support is connected to the mold sleeve, a compression channel is arranged between the mold core support and the mold sleeve, and the compression channel is communicated with a plurality of plastic injection ports arranged on the mold core support or the mold sleeve; the mould core is movably arranged in the mould core bracket, one end of the mould core extends into the mould sleeve, a gap is formed between one end of the mould core and the mould sleeve to form a forming channel, the forming channel is communicated with the compression channel, and when the glue injection pressure is unstable, the mould core can swing in the mould core bracket, and the utility model has the beneficial effects that: the automatic control device can be used for production after starting without manual adjustment, so that the time for starting preparation is reduced, the working efficiency is improved, the material waste is reduced, and raw materials are saved.
Description
Technical Field
The utility model relates to an extruder, in particular to an extrusion die capable of automatically adjusting concentricity and an extruder.
Background
The conventional plastic pipe extrusion die is in the normal extrusion process, must adjust extrusion die's concentricity to the adjusting screw that sets up on the aircraft nose through the manual work earlier to the homogeneity of the thickness of adjustment plastic pipe, it is very high to operation workman's experience and proficiency requirement, adjust the concentricity in-process moreover and often can consume the longer time and produce more machine regulation waste material, cause the waste of raw and other materials.
Although the adjustment-free mold at the present stage can well solve the problem, the mold has high processing precision requirement and processing cost, and the use environment requirement is harsh, so that the adjustment-free mold cannot be widely popularized and used.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to provide an extrusion die and an extruder capable of automatically adjusting concentricity, and aims to solve the problems that the conventional plastic pipe extrusion die cannot quickly adjust the thickness uniformity of a plastic pipe in the normal extrusion process, so that raw materials are wasted more, and the problems of high processing precision requirement and high cost of the plastic pipe extrusion adjustment-free die are solved.
The embodiment of the utility model is realized in such a way that the extrusion die capable of automatically adjusting the concentricity comprises:
die sleeve;
the mold core support is connected to the mold sleeve, a compression channel is arranged between the mold core support and the mold sleeve, and the compression channel is communicated with a plurality of plastic injection ports arranged on the mold core support or the mold sleeve;
The mold core is movably arranged in the mold core support, one end of the mold core extends into the mold core sleeve, a gap is formed between one end of the mold core and the mold sleeve to form a forming channel, the forming channel is communicated with the compression channel, and when the glue injection pressure is unstable, the mold core can swing in the mold core support.
As a further scheme of the utility model: the mold core comprises a spherical part and a columnar part which are connected with each other, wherein the spherical part is movably arranged in the mold core bracket, and the columnar part extends into the mold sleeve to form a molding channel with the mold sleeve.
As a still further scheme of the utility model: and a sealing piece is arranged between the columnar part and the mold core support.
As a still further scheme of the utility model: the side of the die core support facing the die sleeve is of a conical or truncated cone-shaped structure, and the corresponding position of the die sleeve is profiled with the die core support to form a compression channel with gradually reduced size.
As a still further scheme of the utility model: and a flow guide part is further fixed on the outer side surface of the mold core support, and the plastic injection ports are positioned at the outer side position of the flow guide part.
As a still further scheme of the utility model: the flow guide piece is connected with the mold core support to encapsulate the mold core.
As a still further scheme of the utility model: and a channel in the axial direction is arranged in the mold core and is communicated with an annular groove arranged on the surface of the spherical part.
Another object of an embodiment of the present invention is to provide an extruder, which includes an extruder body and a locking die plate, and further includes the extrusion die capable of automatically adjusting concentricity.
Compared with the prior art, the utility model has the beneficial effects that: the embodiment of the utility model automatically adjusts the relative positions of the mold core and the mold sleeve by means of extrusion pressure, does not need manual adjustment, and can be used for production after starting up, thereby reducing the time of starting up preparation work and improving the working efficiency; the embodiment of the utility model does not need manual adjustment, thereby reducing material waste and saving raw materials; the embodiment of the utility model can effectively improve the phenomenon and reduce energy consumption.
Drawings
Fig. 1 is a schematic structural view of an extrusion die capable of automatically adjusting concentricity.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a schematic structural diagram of a core in an extrusion die capable of automatically adjusting concentricity.
In the drawings: 1-die sleeve, 2-die core support, 3-cone, 4-die core, 401-spherical part, 402-columnar part, 403-mounting groove, 404-channel, 5-compression channel, 6-plastic injection port, 7-sealing ring and 8-forming channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 to 3, a structural diagram of an extrusion die capable of automatically adjusting concentricity according to an embodiment of the present invention includes:
a die sleeve 1;
the mould core support 2 is connected to the mould sleeve 1, a compression channel 5 is arranged between the mould core support 2 and the mould sleeve 1, and the compression channel 5 is communicated with a plurality of plastic injection ports 6 arranged on the mould core support 2 or the mould sleeve 1;
the mold core 4 is movably arranged in the mold core support 2, one end of the mold core 4 extends into the mold sleeve 1, a gap is formed between one end of the mold core 4 and the mold sleeve 1 to form a forming channel 8, the forming channel 8 is communicated with the compression channel 5, and when the glue injection pressure is unstable, the mold core 4 can swing in the mold core support 2;
The mold core 4 comprises a spherical part 401 and a columnar part 402 which are connected with each other, wherein the spherical part 401 is movably arranged in the mold core bracket 2, and the columnar part 402 extends into the mold sleeve 1 to form a forming channel 8 with the mold sleeve 1;
the side of the die core support 2 facing the die sleeve 1 is in a conical or truncated cone-shaped structure, and the corresponding position of the die sleeve 1 is profiled with the die core support 2 to form a compression channel 5 with gradually reduced size.
In the embodiment of the present invention, the spherical portion 401 and the column portion 402 are preferably integrally formed, and further, the column portion 402 should be a cylindrical structure, a cavity for installing the spherical portion 401 is provided in the core holder 2, the size of the cavity should be slightly larger than the diameter of the spherical portion 401, so that the spherical portion 401 can swing in the cavity in a small range, and correspondingly, a duct for matching with the column portion 402 is provided in the core holder 2, the duct is used for accommodating the column portion 402, so that the column portion 402 can extend into the forming channel 8, and the size of the column portion 402 is slightly smaller than the duct, so that the column portion 402 can also swing in the duct in a small range, because the column portion 402 is actually a power output portion, and transmits the swing power to the spherical portion 401.
In the embodiment of the present invention, the core holder 2 is actually installed at the end opening of the mold sleeve 1, and the shape of the end opening of the mold sleeve 1 is also a contour of the core holder 2, both of which can form a compression channel 5 with gradually decreasing size, as shown in the figure, a trumpet-shaped structure, and the plasticized plastic entering from the plastic inlet 6 can enter into the compression channel 5 to form the extrusion pressure between the column part 402 of the core 4 and the mold sleeve 1.
In practical application, the embodiment of the utility model firstly installs the whole set of pre-assembled extrusion die with the automatic concentricity adjustment in the extrusion head, screws the die locking plate on the extrusion head to fix the extrusion die, when extruding, the plasticized plastic enters the compression channel 5 through the plastic injection port 6, and finally, the extrusion pressure is output from the forming channel 8, the thickness or the gap size of the forming channel 8 can be selected or adjusted according to the actual wall thickness condition of the product, the formation of the extrusion pressure is generated by the compression channel 5, when the extrusion pressure is not uniform at first, since the mould core 4 is movably mounted in said mould core carrier 2, the mould core 4 can be swung in the mould core carrier 2, where the swinging should be a free swinging with a small amplitude, when the extrusion pressure becomes uniform, the mold core 4 can swing to the central position, so that the automatic adjustment of the concentricity can be realized and the optimal concentricity can be reached.
The plastic injection opening 6 according to the embodiments of the present invention may be provided on the core carrier 2 or the mold chase 1, and the plastic injection opening 6 is shown as being provided on the core carrier 2.
As another preferred embodiment of the present invention, as shown in fig. 1, a seal is installed between the column portion 402 and the core holder 2.
In the embodiment of the present invention, the sealing member is a sealing ring 7, preferably, the sealing ring 7 should be made of a soft and high temperature resistant material, and here, an installation groove 403 for installing the sealing ring 7 is further provided on the column portion 402.
As shown in fig. 1 to 3, as another preferred embodiment of the present invention, a flow guide member is further fixed on an outer side surface of the mold core support 2, and a plurality of plastic injection ports 6 are located at outer positions of the flow guide member.
In one aspect of the present invention, the guiding element is a cone 3, which has a conical structure and is mainly used to facilitate the introduction of the plasticized plastic into the plastic injection opening 6, and of course, the fixing position of the guiding element is determined according to the opening position of the plastic injection opening 6, which is the case when the plastic injection opening 6 is opened on the mold core holder 2 in this embodiment. In practical applications, the flow guide element may also have a structure with other shapes, and this embodiment is not limited specifically herein.
As shown in fig. 1 to 3, as another preferred embodiment of the present invention, the flow guide member is connected to the core holder 2 to enclose the core 4 therein.
In the embodiment of the utility model, aiming at the connection condition of the flow guide piece and the core holder 2, the flow guide piece and the core holder 2 are both provided with semicircular inner cavities, and the diameters of the inner cavities are slightly larger than the diameter of the spherical part 401, so that the spherical part 401 can swing in the inner cavities within a small range.
As shown in fig. 2 and 4, as another preferred embodiment of the present invention, a passage 404 in the axial direction is provided in the core 4, and the passage 404 communicates with an annular groove provided on the surface of the spherical portion 401.
In the embodiment of the present invention, in fact, the channel 404 is an exhaust hole, and when the exhaust is required, the channel 404 is further communicated with an air passage provided on the core holder 2, and since the spherical portion 401 swings at a small angle, in order to ensure the smoothness of the exhaust, an annular groove is provided on the surface of the spherical portion 401, and the annular groove is further communicated with the air passage provided on the core holder 2, so as to ensure the exhaust performance.
The embodiment of the utility model also provides an extruder which comprises an extruder body, a locking template and the extrusion die capable of automatically adjusting the concentricity.
With the above embodiments, it is easy to understand that the working principle of the present invention is: firstly, a whole set of automatic concentricity adjusting extrusion die which is preassembled is installed in an extrusion head, a die locking plate on the extrusion head is screwed to fix the extrusion die, when the extrusion die is extruded, plasticized plastic enters a compression channel 5 through a plastic injection port 6 and is finally output outwards from a forming channel 8, the thickness or gap size of the forming channel 8 can be selected or adjusted according to the wall thickness condition of an actual product, the formation of extrusion pressure is generated by the compression channel 5, when the extrusion pressure is not uniform at first, the column part 402 can swing in a small range under the non-uniform pressure, after the swing is transmitted to the spherical part 401, the spherical part 401 can automatically rotate in a small range, when the extrusion pressure becomes uniform, the die core 4 can swing to a central position, and the automatic concentricity adjustment can be realized and the optimal concentricity can be reached.
The extrusion die capable of automatically adjusting the concentricity provided by the embodiment of the utility model has the following beneficial effects:
improve the working efficiency
Before a conventional plastic pipe extruding die is normally started, the relative positions of a die core and a die sleeve need to be manually adjusted, so that the thickness of the extruded plastic pipe is uniform. The embodiment of the utility model automatically adjusts the relative positions of the mold core and the mold sleeve by means of extrusion pressure, does not need manual adjustment, and can be used for production after starting up, thereby reducing the time of starting up preparation work and improving the working efficiency.
Reduce material waste and save raw materials
The conventional extrusion die is used, and when the thickness of the extruded plastic pipe is manually adjusted, repeated adjustment can be carried out until the thickness of the plastic pipe is uniform. And a lot of material waste is caused during the adjustment, and more material waste is caused by unskilled staff than by skilled staff. The embodiment of the utility model does not need manual adjustment, can be produced after starting up, reduces material waste and saves raw materials.
Reduce energy consumption
The extrusion of plastic materials is to melt the materials in the extruder by electric heating, and power resources are consumed. The time consumption for adjusting the die can be additionally increased, the material consumption can be additionally increased, the power consumption can be increased, and the embodiment of the utility model can effectively improve the phenomenon and reduce the energy consumption.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (6)
1. An extrusion die capable of automatically adjusting concentricity, comprising:
die sleeve;
the mold core support is connected to the mold sleeve, a compression channel is arranged between the mold core support and the mold sleeve, and the compression channel is communicated with a plurality of plastic injection ports arranged on the mold core support or the mold sleeve;
the mold core is movably arranged in the mold core support, one end of the mold core extends into the mold sleeve, a gap is formed between one end of the mold core and the mold sleeve to form a forming channel, the forming channel is communicated with the compression channel, and when the glue injection pressure is unstable, the mold core can swing in the mold core support;
the side of the die core support facing the die sleeve is of a conical or truncated cone-shaped structure, and the corresponding position of the die sleeve is profiled with the die core support to form a compression channel with gradually reduced size;
the mold core comprises a spherical part and a columnar part which are connected with each other, wherein the spherical part is movably arranged in the mold core bracket, and the columnar part extends into the mold sleeve to form a molding channel with the mold sleeve.
2. The extrusion die capable of automatically adjusting the concentricity of claim 1, wherein a seal is installed between the column part and the core holder.
3. The extrusion die capable of automatically adjusting the concentricity according to claim 1, wherein a flow guide part is further fixed on the outer side surface of the die core support, and the plurality of plastic injection ports are positioned at the outer side position of the flow guide part.
4. The extrusion die of claim 3, wherein the flow guide member is connected to the core holder to enclose the core therein.
5. The extrusion die capable of automatically adjusting the concentricity according to claim 1, 2, 3 or 4, wherein a passage in the axial direction is provided in the die core, and the passage communicates with an annular groove provided on the surface of the spherical portion.
6. An extruder comprising an extruder body and a locking die plate, and further comprising an extrusion die capable of automatically adjusting concentricity according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220032193.9U CN216914753U (en) | 2022-01-07 | 2022-01-07 | Extrusion die capable of automatically adjusting concentricity and extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220032193.9U CN216914753U (en) | 2022-01-07 | 2022-01-07 | Extrusion die capable of automatically adjusting concentricity and extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216914753U true CN216914753U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220032193.9U Active CN216914753U (en) | 2022-01-07 | 2022-01-07 | Extrusion die capable of automatically adjusting concentricity and extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216914753U (en) |
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2022
- 2022-01-07 CN CN202220032193.9U patent/CN216914753U/en active Active
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