CN209794375U - Secondary foaming mould - Google Patents
Secondary foaming mould Download PDFInfo
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- CN209794375U CN209794375U CN201920389801.XU CN201920389801U CN209794375U CN 209794375 U CN209794375 U CN 209794375U CN 201920389801 U CN201920389801 U CN 201920389801U CN 209794375 U CN209794375 U CN 209794375U
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- foaming layer
- mold
- foaming
- annular channel
- pipe
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
The application discloses secondary foaming mould, include foaming layer spirochaeta, foaming layer mandrel, foaming layer bush, outer pillar mandrel, outer pillar bush that set gradually along inner tube outer wall, foaming layer spirochaeta surface is formed with first helicla flute, be formed with first annular channel between foaming layer mandrel and the foaming layer bush, first helicla flute extends to first annular channel. The utility model has the advantages of secondary foaming shaping makes tubular product obtain better protection, and the durability obtains improving, and mechanical properties is better, and application range is wider.
Description
Technical Field
The application relates to the field of pipe forming, in particular to a secondary foaming mold.
Background
The pipe formed by one-step foaming has low durability in certain environments and short service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a secondary foaming mould to overcome prior art's is not enough.
In order to achieve the above object, the present invention provides the following technical solutions.
the embodiment of the application discloses a secondary foaming mould, include foaming layer spirochaeta, foaming layer mandrel, foaming layer bush, outer pillar mandrel, outer pillar bush that set gradually along the inner tube outer wall, foaming layer spirochaeta surface is formed with first helicla flute, be formed with first annular channel between foaming layer mandrel and the foaming layer bush, first helicla flute extends to first annular channel, foaming layer spirochaeta outer wall cover is equipped with foaming layer overcoat, foaming layer overcoat is seted up and is sealed the first pan feeding mouth that communicates in first extruder, first pan feeding mouth communicate in first helicla flute deviates from the one end of first annular channel, foaming layer bush with form the foaming layer chamber between the inner tube, first annular channel extends to foaming layer chamber, outer pillar mandrel outer wall cover is equipped with the outer pillar spirochaeta, the outer pillar spirochete surface is formed with the second helicla flute, be formed with the second annular channel between outer pillar mandrel and the outer pillar bush, the second helicla flute extends to the second annular channel, outer pillar spirochete outer wall cover is equipped with the outer pillar overcoat, the second pan feeding mouth in sealed intercommunication in the second extruder is seted up to the outer pillar overcoat, the second pan feeding mouth communicate in the second helicla flute deviates from the one end of second annular channel, the foaming layer outer wall with form outer pillar chamber between the outer pillar bush inner wall, the second annular channel extends to outer pillar chamber.
Preferably, in the above-described secondary foaming mold, the foaming layer is formed in the foaming layer cavity, and the outer sheath is formed in the outer sheath cavity.
preferably, in the secondary foaming mold, the foaming layer die and the inner wall of the outer jacket core die are flush with each other.
Preferably, in the secondary foaming mold, the outer protecting pipe spiral body is sleeved on the outer wall of the foaming layer mouth mold, and a connecting flange is formed on one side of the outer protecting pipe spiral body.
Preferably, in the secondary foaming mold, an end face of the foaming layer spiral body, which is away from the foaming layer core mold, is fixedly connected to the pull plate, and an end face of the foaming layer outer sleeve abuts against the end face of the pull plate.
Preferably, in the secondary foaming mold, the foaming layer core mold is engaged with one end of the foaming layer spiral body.
Preferably, in the secondary foaming mold, a sectional area of the first spiral groove gradually decreases from the first feeding port to the first annular channel, and a sectional area of the second spiral groove gradually decreases from the second feeding port to the second annular channel.
Compared with the prior art, the utility model has the advantages of secondary foaming shaping makes tubular product obtain better protection, and the durability obtains improving, and mechanical properties is better, and application range is wider.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a sectional view of a secondary foaming mold according to an embodiment of the present invention;
FIG. 2 is a perspective view of a spiral body of a foaming layer according to an embodiment of the present invention;
Fig. 3 is a perspective view of an outer sheath spiral according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the secondary foaming mold includes a foaming layer spiral body 200, a foaming layer core mold 300, a foaming layer opening mold 400, an outer protecting pipe core mold 500, and an outer protecting pipe opening mold 600, which are sequentially disposed along an outer wall of an inner pipe 100, a first spiral groove 210 is formed on an outer surface of the foaming layer spiral body 200, a first annular channel 220 is formed between the foaming layer core mold 300 and the foaming layer opening mold 400, the first spiral groove 210 extends to the first annular channel 220, a foaming layer outer sleeve 230 is sleeved on an outer wall of the foaming layer spiral body 200, the foaming layer outer sleeve 230 is provided with a first material inlet 240 hermetically communicated with a first extruder, the first material inlet 240 is communicated with one end of the first spiral groove 210 departing from the first annular channel 220, a foaming layer cavity 250 is formed between the foaming layer opening mold 400 and the inner pipe 100, the first annular channel 220 extends to the foaming layer core mold cavity 250, an outer protecting pipe spiral body, a second spiral groove 710 is formed on the outer surface of the outer protection pipe spiral body 700, a second annular channel 720 is formed between the outer protection pipe core mold 500 and the outer protection pipe mouth mold 600, the second spiral groove 710 extends to the second annular channel 720, an outer protection pipe jacket 730 is sleeved on the outer wall of the outer protection pipe spiral body 700, a second feeding port 740 which is hermetically communicated with a second extruder is formed in the outer protection pipe jacket 730, the second feeding port 740 is communicated with one end, deviating from the second annular channel 720, of the second spiral groove 710, an outer protection pipe cavity 750 is formed between the outer wall of the foaming layer 251 and the inner wall of the outer protection pipe mouth mold 600, and the second annular channel 720 extends to the outer protection. The foaming layer 251 is formed in the foaming layer cavity 250, and the outer protective tube 751 is formed in the outer protective tube cavity 750. The inner walls of the foaming layer mouth mold 400 and the outer protecting pipe core mold 500 are kept flat.
When the foaming device is actually used, corresponding foaming materials are placed in the two extruders and then are connected to the two feeding ports, two times of foaming are respectively carried out through the spiral grooves and the annular channels and then enter the foaming device, the foaming materials wrap the outer wall of the inner pipe during the first time of foaming, the foaming materials are released through the annular channels after being compressed through the spiral grooves and uniformly wrap the inner pipe, and a foaming layer cavity with one flat end is formed in a foaming layer die and an outer protection pipe core mold, and the foaming layer is wrapped in the foaming layer cavity; foaming for the second time, wherein when the wrapped outer protective pipe is formed, the principle is the same, except that the outer protective pipe is wrapped on the outer wall of the primary foaming layer, and the outer protective pipe plays a role in protecting the foaming layer; the secondary foaming molding ensures that the pipe is better protected, the durability is improved, the mechanical property is better, and the application range is wider.
Further, the outer protecting pipe spiral body 700 is sleeved on the outer wall of the foaming layer neck mold 400, and a connecting flange 760 is formed at one side of the outer protecting pipe spiral body 700.
In the technical scheme, the connecting device is used for connecting to stabilize the whole structure.
Further, the end surface of the foaming layer spiral body 200, which is away from the end surface of the foaming layer core mold 300, is fixedly connected to the pulling plate 800, and the end surface of the foaming layer outer sleeve 230 abuts against the end surface of the pulling plate 800.
In the technical scheme, the connecting device is used for connecting to stabilize the whole structure.
Further, the foam layer core mold 300 is engaged with one end of the foam layer spiral body 200.
In the technical scheme, the connecting device is used for connecting to stabilize the whole structure.
Further, the cross-sectional area of the first spiral groove 210 decreases from the first feeding port 240 to the first annular channel 220, and the cross-sectional area of the second spiral groove 710 decreases from the second feeding port 740 to the second annular channel 720.
In the technical scheme, the foaming material is released after being compressed, the whole annular channel is ensured to be filled, the foaming filling is more uniform and full, and the quality is better.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (7)
1. The secondary foaming mold is characterized by comprising a foaming layer spiral body (200), a foaming layer core mold (300), a foaming layer opening mold (400), an outer protecting pipe core mold (500) and an outer protecting pipe opening mold (600) which are sequentially arranged along the outer wall of an inner pipe (100), wherein a first spiral groove (210) is formed in the outer surface of the foaming layer spiral body (200), a first annular channel (220) is formed between the foaming layer core mold (300) and the foaming layer opening mold (400), the first spiral groove (210) extends to the first annular channel (220), a foaming layer outer sleeve (230) is sleeved on the outer wall of the foaming layer spiral body (200), a first feeding port (240) which is hermetically communicated with a first extruder is formed in the foaming layer outer sleeve (230), the first feeding port (240) is communicated with one end, deviating from the first annular channel (220), of the first spiral groove (210), a foaming layer cavity (250) is formed between the foaming layer mouth mold (400) and the inner pipe (100), the first annular channel (220) extends to the foaming layer cavity (250), an outer protective pipe spiral body (700) is sleeved on the outer wall of the outer protective pipe core mold (500), a second spiral groove (710) is formed on the outer surface of the outer protective pipe spiral body (700), a second annular channel (720) is formed between the outer protective pipe core mold (500) and the outer protective pipe mouth mold (600), the second spiral groove (710) extends to the second annular channel (720), an outer protective pipe outer sleeve (730) is sleeved on the outer wall of the outer protective pipe spiral body (700), a second feeding port (740) which is hermetically communicated with a second extruder is formed in the outer protective pipe sleeve (730), and the second feeding port (740) is communicated with one end, deviating from the second annular channel (720), of the second spiral groove (710), an outer protection pipe cavity (750) is formed between the outer wall of the foaming layer (251) and the inner wall of the outer protection pipe mouth mold (600), and the second annular channel (720) extends to the outer protection pipe cavity (750).
2. The secondary foaming mold according to claim 1, wherein the foaming layer (251) is formed in the foaming layer cavity (250), and an outer protective tube (751) is formed in the outer protective tube cavity (750).
3. The secondary foaming mold according to claim 1, wherein the inner walls of the foaming layer die (400) and the outer protecting pipe core die (500) are kept flat.
4. The secondary foaming mold according to claim 1, wherein the outer protecting pipe spiral body (700) is sleeved on the outer wall of the foaming layer neck mold (400), and a connecting flange (760) is formed at one side of the outer protecting pipe spiral body (700).
5. The secondary foaming mold as claimed in claim 1, wherein the foaming layer spiral body (200) is fixedly connected to a pulling plate (800) at an end surface deviating from the foaming layer core mold (300), and the end surface of the foaming layer outer sleeve (230) abuts against the end surface of the pulling plate (800).
6. The secondary foaming mold as claimed in claim 1, wherein the foaming layer core mold (300) is engaged with one end of the foaming layer spiral body (200).
7. The secondary foaming mold of claim 1, wherein the first helical groove (210) has a cross-sectional area that gradually decreases from the first inlet (240) to the first annular channel (220), and the second helical groove (710) has a cross-sectional area that gradually decreases from the second inlet (740) to the second annular channel (720).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920389801.XU CN209794375U (en) | 2019-03-26 | 2019-03-26 | Secondary foaming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920389801.XU CN209794375U (en) | 2019-03-26 | 2019-03-26 | Secondary foaming mould |
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| Publication Number | Publication Date |
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| CN209794375U true CN209794375U (en) | 2019-12-17 |
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| CN201920389801.XU Active CN209794375U (en) | 2019-03-26 | 2019-03-26 | Secondary foaming mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171091A (en) * | 2019-03-26 | 2019-08-27 | 江苏欣荣普尔斯机械有限公司 | A kind of second time of foaming mold |
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2019
- 2019-03-26 CN CN201920389801.XU patent/CN209794375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171091A (en) * | 2019-03-26 | 2019-08-27 | 江苏欣荣普尔斯机械有限公司 | A kind of second time of foaming mold |
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