CN217021376U - Tubular product design mould - Google Patents
Tubular product design mould Download PDFInfo
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- CN217021376U CN217021376U CN202121516941.2U CN202121516941U CN217021376U CN 217021376 U CN217021376 U CN 217021376U CN 202121516941 U CN202121516941 U CN 202121516941U CN 217021376 U CN217021376 U CN 217021376U
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- conical surface
- inverted conical
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- inlet end
- mandrel
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Abstract
The utility model provides a pipe shaping die which comprises a core rod, a neck ring die and an extrusion assembly. The mandrel has a first reverse tapered surface, and the cross-sectional area of the first inlet end of the mandrel is larger than the cross-sectional area of the first outlet end of the mandrel. The neck ring mold is sleeved outside the core rod, the inner wall of the neck ring mold is provided with a second inverted conical surface sleeved outside the first inverted conical surface, the first inverted conical surface and the second inverted conical surface are oppositely arranged, straight lines formed by longitudinal sections of the first inverted conical surface and the second inverted conical surface are parallel, and a first material channel is formed between the first inverted conical surface and the second inverted conical surface. The extrusion subassembly is used for exerting the second extrusion force that makes it get into in the first material passageway to the material. Above-mentioned structure makes the material discharge through first material passageway and stereotypes the back, and the inner wall of the tubular product of formation is smooth and do not have the reposition of redundant personnel trace to first extrusion force and the second extrusion force of extrusion subassembly to the material that first material passageway was applyed the material can realize the two-way continuous compression to the material, and then makes the quality of tubular product inner wall further promote.
Description
Technical Field
The utility model relates to the technical field of pipe extrusion shaping, in particular to a pipe shaping die.
Background
The PVC pipe is generally made by using polyvinyl chloride as raw material, adding stabilizer, lubricant, plasticizer and the like, and extruding the mixture in a pipe making machine by a plastic method. The production of the pipe is completed through the procedures of cooling, curing, shaping, checking, packaging and the like, and the pipe is more and more widely applied to building engineering due to the characteristics of light weight, corrosion resistance, attractive appearance, no bad smell, easy processing, convenient construction and the like. The PVC pipe is mainly used as a tap water supply system piping, a drainage, exhaust and pollution discharge sanitary pipe, an underground drainage pipe system, a rainwater pipe, a threading pipe for electric wire installation and assembly sleeve and the like of a house building. The design mould plays a key role in the production and processing of PVC pipes, but the pipes shaped by the current design mould have the technical problems of unsmooth pipe inner wall and shunt marks, and the production quality of the pipes is influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides a pipe shaping mold which can smooth the inner wall of a shaped pipeline and improve the production quality of pipes.
The embodiment of the utility model provides a pipe shaping die, which comprises:
the mandrel is provided with a first inverted conical surface and a first inlet end and a first outlet end which are oppositely arranged, and the cross-sectional area of the first inlet end is larger than that of the first outlet end;
the neck ring is sleeved outside the core rod, the inner wall of the neck ring is provided with a second inverted conical surface sleeved outside the first inverted conical surface, the first inverted conical surface and the second inverted conical surface are oppositely arranged, straight lines formed by longitudinal sections of the first inverted conical surface and the second inverted conical surface are parallel, a first material channel is formed between the first inverted conical surface and the second inverted conical surface, and materials are discharged in the first material channel under first extrusion force;
and the extrusion assembly is arranged on one side of the first inlet end of the core rod and is used for applying second extrusion force to the material to enable the material to enter the first material channel.
In some embodiments, the die has a second inlet end corresponding to the first inlet end and a second outlet end corresponding to the first outlet end, the second inlet end of the die has a second material passage formed by one end of a second inverted conical surface of the second inlet end expanding outwards, and the distance between the first inverted conical surface and the second inverted conical surface corresponding to the second material passage is larger than the distance between the first inverted conical surface and the second inverted conical surface corresponding to the first material passage.
In some embodiments, the die is provided with attachment holes.
In some embodiments, the outer wall of the second inlet end of the die extends outward to form a connecting portion, and the connecting hole is formed in the connecting portion.
In some embodiments, the die has first and second meeting annular bodies, the first annular body forming the connecting portion and an inner wall of the second annular body forming the second reverse taper.
In some embodiments, the central portion of the mandrel has a through-hole extending in a direction from the first inlet end to the first outlet end thereof.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects: according to the utility model, the second inverted conical surface of the neck mold is sleeved outside the first inverted conical surface of the core rod, the first inverted conical surface and the second inverted conical surface are arranged oppositely, and straight lines formed by longitudinal sections of the first inverted conical surface and the second inverted conical surface are parallel, so that after materials are discharged and shaped through the first material channel, the inner wall of the formed pipe is smooth and has no shunting marks, and the first extrusion force applied to the materials by the first material channel and the second extrusion force applied to the materials by the extrusion assembly can realize bidirectional continuous compression of the materials, thereby further improving the quality of the inner wall of the pipe.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar parts throughout the different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example, and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
FIG. 1 is a schematic structural diagram of a pipe shaping mold according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a tube sizing die in accordance with an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
The members denoted by reference numerals in the drawings:
1-a core rod; 11-a first inverted conical surface; 12-a first inlet end; 13-a first outlet end; 14-a through hole; 2-a die; 21-a second inverted conical surface; 22-a second material channel; 23-connecting holes; 24-a connecting portion; 3-a first material channel.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and the detailed description. The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings and the detailed description of embodiments of the utility model, but is not intended to limit the utility model.
An embodiment of the present invention provides a tube shaping mold, as shown in fig. 1 to 3, the tube shaping mold includes a core rod 1, a die 2, and an extrusion assembly (not shown in the figure). The mandrel 1 has a first reverse tapered surface 11, the mandrel 1 has a first inlet end 12 and a first outlet end 13 which are oppositely arranged, and the cross-sectional area of the first inlet end 12 is larger than that of the first outlet end 13. The neck ring 2 is sleeved outside the core rod 1, the inner wall of the neck ring 2 is provided with a second inverted conical surface 21 sleeved outside the first inverted conical surface 11, the first inverted conical surface 11 and the second inverted conical surface 21 are oppositely arranged, straight lines formed by longitudinal sections of the first inverted conical surface 11 and the second inverted conical surface 21 are parallel, a first material channel 3 is formed between the first inverted conical surface 11 and the second inverted conical surface 21, and materials are discharged in the first material channel 3 after being subjected to first extrusion force. The extrusion assembly is arranged on one side of the first inlet end 12 of the mandrel 1 and is used for applying a second extrusion force to the material so that the material enters the first material channel 3.
Specifically, fig. 2 is a cross-sectional view of a longitudinal section of the tube shaping mold, as shown in fig. 2, a straight line formed by the first inverted conical surface 11 and a straight line formed by the second inverted conical surface 21 are parallel, the material can receive a uniform first extrusion force in the first material channel 3 formed between the first inverted conical surface 11 and the second inverted conical surface 21, and a direction of the first extrusion force may be a direction perpendicular to the first inverted conical surface 11.
Specifically, the direction of the arrow shown in fig. 2 is the direction of movement of the material. The inlet of the first material channel 3 is close to the first inlet end 12 of the mandrel 1, i.e. the left side of the first material channel 3 in fig. 2 is its inlet, and the outlet of the first material channel 3 is close to the first outlet end 13 of the mandrel 1, i.e. the right side of the first material channel 3 in fig. 2 is its outlet.
Further, the extrusion assembly is configured to apply a force to the material to move the material from the inlet of the first material channel 3 to the outlet thereof, that is, the second extrusion force, the direction of the second extrusion force may be perpendicular to the direction of the first extrusion force, and a certain included angle may be formed between the first extrusion force and the second extrusion force, in short, the first extrusion force and the second extrusion force are forces in different directions, and the two forces are applied to the material to enable the material to be compressed bidirectionally and continuously and be discharged from the outlet of the first material channel 3.
According to the utility model, the second inverted cone surface 21 of the neck ring mold 2 sleeved outside the first inverted cone surface 11 of the core rod 1 and the straight lines formed by the longitudinal sections of the first inverted cone surface 11 and the second inverted cone surface 21 are arranged oppositely and are parallel to each other, so that after the material is discharged and shaped through the first material channel 3, the inner wall of the formed pipe is smooth and has no shunting mark, and the first extrusion force applied to the material by the first material channel 3 and the second extrusion force applied to the material by the extrusion assembly can realize bidirectional continuous compression on the material, thereby further improving the quality of the inner wall of the pipe.
In some embodiments, as shown in fig. 2, the die 2 has a second inlet end corresponding to the first inlet end 12 and a second outlet end corresponding to the first outlet end 13, the second inlet end of the die 2 has a second material passage 22 formed by one end of a second inverted conical surface 21 expanding outwards, and the distance between the first inverted conical surface 11 and the second inverted conical surface 21 corresponding to the second material passage 22 is greater than the distance between the first inverted conical surface 11 and the second inverted conical surface 21 corresponding to the first material passage 3.
Specifically, as shown in fig. 2, the cross-sectional area of the second material passage 22 is larger as it is closer to the first inlet end 12 of the mandrel 1, which is beneficial for the material to smoothly enter the second material passage 22, the second material passage 22 is communicated with the first material passage 3, and the material enters the first material passage 3 from the second material passage 22.
In some embodiments, as shown in figure 2, the die 2 is provided with coupling holes 23, which coupling holes 23 facilitate the removable mounting of the die 2. The connecting hole 23 may be a threaded hole or a through hole 14.
In some embodiments, as shown in fig. 2, the outer wall of the second inlet end of the die 2 extends outwards to form a connecting portion 24, and the connecting holes 23 are provided on the connecting portion 24. The above-mentioned connecting portion 24 allows the die 2 to be stably mounted on other members.
In some embodiments, the die 2 has a first and a second contiguous annular body, the first annular body forming the connecting portion 24 and the inner wall of the second annular body forming the second inverted conical surface 21. The first annular body and the second annular body can be integrally formed to ensure the relative position relationship of the first annular body and the second annular body and ensure the stable connection of the first annular body and the second annular body.
In some embodiments, as shown in FIG. 2, the central portion of the mandrel 1 has a through-hole 14 extending in a direction from its first inlet end 12 to its first outlet end 13. The mandrel 1 can be inserted into a member for mounting the mandrel 1 through the through hole 14, so that the mandrel 1 can be stably mounted.
Claims (6)
1. A tubular product design mould which characterized in that includes:
the mandrel is provided with a first inverted conical surface and a first inlet end and a first outlet end which are oppositely arranged, and the cross-sectional area of the first inlet end is larger than that of the first outlet end;
the neck ring is sleeved outside the core rod, the inner wall of the neck ring is provided with a second inverted conical surface sleeved outside the first inverted conical surface, the first inverted conical surface and the second inverted conical surface are oppositely arranged, straight lines formed by longitudinal sections of the first inverted conical surface and the second inverted conical surface are parallel, a first material channel is formed between the first inverted conical surface and the second inverted conical surface, and materials are discharged in the first material channel under first extrusion force;
and the extrusion assembly is arranged on one side of the first inlet end of the core rod and is used for applying second extrusion force to the material to enable the material to enter the first material channel.
2. The tube sizing die as defined in claim 1, wherein the die has a second inlet end corresponding to the first inlet end and a second outlet end corresponding to the first outlet end, the second inlet end of the die has a second material passage formed by one end of a second inverted conical surface of the die expanding outward, and the distance between the first inverted conical surface and the second inverted conical surface corresponding to the second material passage is greater than the distance between the first inverted conical surface and the second inverted conical surface corresponding to the first material passage.
3. The tube sizing die as recited in claim 1, wherein the die is provided with attachment holes.
4. The tube sizing die according to claim 3, wherein the outer wall of the second inlet end of the die extends outwards to form a connecting portion, and the connecting holes are formed in the connecting portion.
5. The tube sizing die as defined in claim 4 wherein said die has first and second abutting annular bodies, said first annular body forming said connecting portion and said second annular body having an inner wall forming said second reverse taper.
6. The pipe sizing die according to claim 1, wherein the middle part of the mandrel is provided with a through hole extending from the first inlet end to the first outlet end of the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121516941.2U CN217021376U (en) | 2021-07-05 | 2021-07-05 | Tubular product design mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121516941.2U CN217021376U (en) | 2021-07-05 | 2021-07-05 | Tubular product design mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217021376U true CN217021376U (en) | 2022-07-22 |
Family
ID=82410904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121516941.2U Active CN217021376U (en) | 2021-07-05 | 2021-07-05 | Tubular product design mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217021376U (en) |
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2021
- 2021-07-05 CN CN202121516941.2U patent/CN217021376U/en active Active
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