CN215886832U - Core mould for rapid propelling and forming of pipeline and forming furnace matched with same - Google Patents
Core mould for rapid propelling and forming of pipeline and forming furnace matched with same Download PDFInfo
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- CN215886832U CN215886832U CN202120278586.3U CN202120278586U CN215886832U CN 215886832 U CN215886832 U CN 215886832U CN 202120278586 U CN202120278586 U CN 202120278586U CN 215886832 U CN215886832 U CN 215886832U
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- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
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Abstract
The utility model discloses a core mould for fast propelling and forming a pipeline and a forming furnace matched with the core mould. The core mould cover is arranged in the furnace barrel, at least two heating cavities are arranged in the furnace barrel and comprise a preheating cavity and a curing cavity, the outer diameter of the core mould corresponding to the curing cavity is smaller than the outer diameter corresponding to the preheating cavity, the curing cavity is composed of a first curing cavity and a second curing cavity, the inner diameter of the first curing cavity and part of the inner diameter of the second curing cavity are both larger than the inner diameter of the preheating cavity, and the outer diameters of the core mould corresponding to the first curing cavity, the second curing cavity and the preheating cavity are sequentially reduced. The utility model reduces the contact resistance between the basically formed pipeline material and the inner wall of the furnace barrel by reducing the outer diameter of the core die close to the outlet area, accelerates the propelling speed and improves the production efficiency.
Description
Technical Field
The utility model belongs to the field of glass fiber pipeline manufacturing, and particularly relates to a core mold for rapid propelling and forming of a pipeline and a forming furnace matched with the core mold.
Background
In daily life, the shadow of pipelines such as underground pipelines and ground pipelines including large tap water pipelines, sewage pipelines, oil pipelines and the like is everywhere. In the prior various large-sized pipelines, the purposes and the strength are considered, and glass fiber is basically mixed to be used as a raw material for manufacturing the pipelines. The glass fiber pipeline is manufactured by feeding the pipeline material wrapped on the core mold into a heating forming furnace for curing and forming, and drawing the pipeline material out of the furnace under the action of a drawing machine to finish the manufacturing of the pipeline.
When the existing heating forming furnace works, a tractor is used for dragging a core mold covered with a pipeline material to be formed in an inner cylinder from an inlet to an outlet, the core mold enters a curing zone through a preheating zone after entering from the inlet, the pipeline material on the core mold is generally in close contact with the inner cylinder in order to ensure the heating effect, when the tractor applies traction force to drag the core mold to push the core mold towards the outlet, the friction force between the pipeline material on the core mold and the inner wall of the inner cylinder is large, the integral traction speed is reduced, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a core mould for quickly propelling and forming a pipeline and a forming furnace matched with the core mould.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a core mold for pipe rapid advance molding, the outer diameter of the core mold located in a furnace tube of a molding furnace is reduced in a stepwise manner from an inlet to an outlet in the furnace tube in a direction in which the core mold is pulled.
The traction machine pulls the core mold coated with the pipeline material to be formed into the furnace barrel, the numerical value of the outer diameter of the core mold at the end close to the traction outlet is reduced, the pipeline material pulled to the position is basically formed at the moment, and compared with the outer diameter of the core mold at the end close to the inlet, namely the original outer diameter, the pipeline material is in non-contact fit with the inner wall of the furnace barrel in the area close to the outlet, so that the contact resistance is reduced, the propelling speed is increased, and the production efficiency is improved.
The further improvement scheme of the utility model is that the core mold is internally provided with a first temperature zone and a third temperature zone with the temperature lower than that of the first temperature zone, and the outer diameter of the core mold positioned in the first temperature zone is smaller than that of the core mold positioned in the third temperature zone.
The utility model has the further improvement scheme that a second temperature zone with the temperature between the first temperature zone and the third temperature zone is also arranged between the first temperature zone and the third temperature zone, and the outer diameter of the core mold positioned in the second temperature zone is smaller than that of the core mold positioned in the third temperature zone and larger than that of the core mold positioned in the first temperature zone.
The utility model provides a with be used for pipeline to advance fashioned mandrel supporting forming furnace that uses fast, the mandrel cover is located in the forming furnace stove section of thick bamboo, the forming furnace includes the inner tube urceolus, at least two heating cavity have between inner tube and the urceolus, the heating cavity includes preheating chamber and solidification chamber, the mandrel corresponds the external diameter in solidification chamber is less than corresponding to the external diameter in preheating chamber.
In a further improvement of the present invention, the curing cavity is composed of a first curing cavity and a second curing cavity, the inner diameter of the first curing cavity and a part of the inner diameter of the second curing cavity are both larger than the inner diameter of the preheating cavity, and the outer diameters of the core mold corresponding to the first curing cavity, the second curing cavity and the preheating cavity are sequentially reduced.
In a further development of the utility model, the inner diameters of the first curing chambers are each larger than the inner diameter of the second curing chamber.
The utility model has the further improvement scheme that the outer wall of the inner cylinder is provided with an annular oil groove, the oil groove extends to the other end from one end of the inner cylinder along the axial direction, the outer cylinder is sleeved on the outer wall of the inner cylinder in clearance fit and forms a closed oil path with the oil groove, and two ends of the oil path are communicated with the oil pipe to form a loop.
In a further improvement of the utility model, the oil grooves are spirally and equidistantly arranged around the outer wall of the inner cylinder.
According to a further improvement scheme, two ends of an oil path of the preheating cavity, the second curing cavity and the first curing cavity are respectively connected with an oil inlet pipe and an oil outlet pipe which correspond to each other, and the oil inlet pipe and the oil outlet pipe are communicated to an oil temperature machine.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the traction machine pulls the core mold coated with the pipeline material to be formed into the furnace barrel, the numerical value of the outer diameter of the core mold at the end close to the traction outlet is reduced, the pipeline material pulled to the position is basically formed at the moment, and compared with the outer diameter of the core mold at the end close to the inlet, namely the original outer diameter, the pipeline material is in non-contact fit with the inner wall of the furnace barrel in the area close to the outlet, so that the contact resistance is reduced, the propelling speed is increased, and the production efficiency is improved.
(2) The inner part of the core mould is provided with heating temperature zones, the outer diameters of the core mould in different temperature zones are different, and the outer diameters of the core mould can be correspondingly arranged by matching two temperature zones or three temperature zones so as to realize better effect.
(3) Through set up preheating chamber and the solidification chamber that the temperature rised in proper order in the stove section of thick bamboo for the pipeline material under every cavity parcel has different forming temperature, and the pipeline specification is various, and the external diameter of mandrel sets up rather than corresponding the cooperation to the regional outside diameter of heating chamber, reaches better propulsion effect and heating effect.
(4) The three heating chambers are used for controlling the forming temperature gradient of the pipeline to be formed, so that the forming is more effective, the strength and the toughness of the formed pipeline are better, the outer diameter of the core mould is reduced relative to the matching arrangement of different heating chamber areas, meanwhile, because the specifications of the pipelines are various, the contact area between the pipeline with a small diameter and the inner wall of the furnace barrel is relatively smaller, and the furnace barrel can increase the inner diameter of the first curing cavity on the basis of the reduction of the outer diameter of the core mould; the contact area between the large-diameter pipeline and the inner wall of the furnace barrel is relatively large, the frictional resistance between the large-diameter pipeline and the inner wall of the furnace barrel is large, and the pipeline materials passing through the preheating cavity and part of the second curing cavity are formed at the moment, so that the inner diameters of part of the second curing cavity and all the first curing cavities can be increased, and the large-diameter pipeline can be matched with a core mold with the outer diameter arranged in a corresponding heating cavity area for use, so that the speed of traction and propulsion of the large-diameter pipeline can be further increased.
(5) In order to adapt to the heating and setting effects of pipelines with different specifications, the inner diameters of the first curing cavity, the second curing cavity and the preheating cavity can also be arranged in a step shape, the inner diameter of the first curing cavity is the largest, and part or all of the inner diameter of the second curing cavity is smaller than that of the first curing cavity and that of the preheating cavity, so that the pipeline material is long in heating and setting time and good in heating and setting effect.
(6) The outer wall of the inner barrel is provided with an oil groove which is sleeved with the outer barrel to form an oil path through which oil can pass, and a gap between the inner barrel and the outer barrel is not enough for oil molecules to pass, so that a closed oil path can be formed for oil. After heating oil, the oil pump that will have specific temperature after the heating again goes into the oil groove, can the oil temperature in the effective control stove for the low comparatively invariable that floats of stove temperature change, the quality of pipeline obtains the management and control easily, and oil circulation heating's mode power consumption is lower and overall stability is good simultaneously.
(7) The oil grooves are formed in the spiral shape at equal intervals, so that the oil way is uniformly distributed, and meanwhile, a relatively comprehensive heating effect can be achieved in the axial direction and the radial direction.
(8) Pipeline material under every cavity parcel has different forming temperature, carries out temperature control to the oil temperature that communicates to different cavities through control oil temperature machine, and the steerable shaping temperature gradient of treating the forming pipeline for the shaping is more effective, and pipeline intensity and toughness after the shaping are better, and oil temperature machine can the effective control oil temperature in the heating furnace after to oil heating.
Drawings
FIG. 1 is a diagram showing the effect of the overall structure of the present invention
FIG. 2 is a schematic view showing a cross-sectional structure in the furnace in accordance with embodiment 1 of the present invention
FIG. 3 is a schematic view of a comparison structure between the inlet and the outlet in the radial section of FIG. 2
FIG. 4 is an enlarged view of the inner barrel of FIG. 2
FIG. 5 is a schematic view of the inner cylinder structure in example 2 of the present invention
FIG. 6 is a schematic view of the inner cylinder structure in example 3 of the present invention
FIG. 7 is a schematic view showing a cross-sectional structure in the furnace in accordance with embodiment 4 of the present invention
FIG. 8 is an enlarged view of the inner barrel of FIG. 7
In the figure: 1-core mould; 2-preheating chamber; 3-a first curing chamber; 4-a second curing chamber; 5-inner cylinder; 6-outer cylinder; 7-oil temperature machine; 8-oil inlet pipe; 9-an oil outlet pipe; 10-heat insulation ring plate; 11-an oil groove; 12-a first temperature zone; 13-a second temperature zone; 14-third temperature zone.
Detailed Description
The present invention is further illustrated by the following detailed description in conjunction with the accompanying drawings, it being understood that the following detailed description is illustrative of the utility model only and is not intended to limit the scope of the utility model, which is to be given the full breadth of the appended claims and any and all modifications thereof which may occur to those skilled in the art upon reading the present specification and which are within the scope of the appended claims.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
Example 1:
the core mould for quickly propelling and forming the pipeline and the forming furnace matched with the core mould comprise a core mould 1 coated with a pipeline material to be formed and a furnace barrel sleeved outside the core mould 1, wherein the furnace barrel comprises an inner barrel 5 and an outer barrel 6, and a heating cavity is formed between the inner barrel 5 and the outer barrel 6. The core mould 1 is pushed from the inlet to the outlet of the furnace cylinder under the traction of a tractor, and the part of the core mould 1 positioned in the furnace cylinder of the forming furnace has a part of external diameter smaller than that of the end close to the inlet at the end close to the traction outlet.
In the scheme, a plurality of temperature areas with different heating temperatures are arranged in the core mold 1, such as a first temperature area and a third temperature area with different temperatures, or a first temperature area, a second temperature area and a third temperature area with gradually decreased temperatures, and the outer diameter of the core mold 1 is gradually increased along with the temperature areas.
Annular equidistant oil groove 11 has been seted up to the heliciform of inner tube 5 outer wall, oil groove 11 extends to the other end along the axial from the one end of inner tube 5, 6 covers of urceolus are established 5 outer wall interference fit of inner tube and with oil groove 11 forms closed oil circuit, the oil circuit both ends intercommunication oil pipe forms the return circuit. And two ends of an oil path of the preheating cavity 2, the first curing cavity 3 and the second curing cavity 4 are respectively connected with an oil inlet pipe 8 and an oil outlet pipe 9, and the oil inlet pipe 8 and the oil outlet pipe 9 are communicated to an oil temperature machine 7.
Example 2:
the forming furnace is matched with a core mold for use, at least two heating chambers are separated between the inner cylinder 5 and the outer cylinder 6 through a heat insulation annular plate 10, each heating chamber comprises a preheating chamber 2 and a curing chamber, and at least part of the inner diameter of the end part of each curing chamber close to the outlet is larger than the inner diameter of the preheating chamber 2. It should be understood that the heating chamber formed by the division between the outer cylinder 6 and the inner cylinder 5 should be annular, the inner diameter of the heating chamber is the inner diameter of the inner cylinder 5, the outer diameter is the outer diameter, and therefore the inner diameters of the preheating chamber 2 and the curing chamber refer to the inner diameter of the inner cylinder 5 corresponding to the region thereof.
In this embodiment, the outer diameter of the core mold 1 corresponding to the curing chamber region is smaller than the outer diameter corresponding to the preheater section.
The rest is the same as the above embodiments, and is not described herein.
Example 3:
in this embodiment 3, the outer diameter of the core mold 1 is improved on the basis of embodiment 2, the outer diameter of the core mold 1 is divided into three sections, the core mold 1 is divided into three temperature zones, the three temperature zones include a first temperature zone 12, a second temperature zone 13 and a third temperature zone 14, which are sequentially arranged from an outlet to an inlet, and the outer diameter of the second temperature zone 13 is larger than the outer diameter of the first temperature zone 12 and is smaller than the outer diameter of the third temperature zone 14.
The rest is the same as the above embodiments, and is not described herein.
Example 4:
this example 4 was modified based on examples 2 and 3.
In this scheme, the curing chamber comprises first curing chamber 3 and second curing chamber 4, promptly the heating cavity is still including being located preheat second curing chamber 4 between chamber 2 and the first curing chamber 3, preheat the temperature in chamber 2, second curing chamber 4 and first curing chamber 3 and rise in proper order, the internal diameter of first curing chamber 3, the internal diameter of second curing chamber 4 and the internal diameter of preheating chamber 2 increase in proper order, and first warm-area 12 external diameter of mandrel 1 is corresponding to first curing chamber 3, second warm-area 13 external diameter is corresponding to second curing chamber 4, third warm-area 14 is corresponding to preheating chamber 2 and also increases in proper order.
The rest is the same as the above embodiments, and is not described herein.
It should be understood that in each embodiment of the present invention, the outer diameter of the core mold 1 is increased or the inner diameter of the inner cylinder 5 is decreased, which both meet the requirement of thermoforming in actual production, and the range of the values does not affect the industry standard that can be achieved by various indexes of the finished pipe product test.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. A mandrel for pipeline impels shaping fast, its characterized in that: the outer diameter of the core mould (1) in the furnace barrel of the forming furnace is reduced in a stepped mode from an inlet to an outlet in the furnace barrel along the pulled direction of the outer diameter.
2. The mandrel for rapid pipe advance forming as claimed in claim 1, wherein: the core mold is internally provided with a first temperature zone (12) and a third temperature zone (14) with the temperature lower than that of the first temperature zone, and the outer diameter of the core mold (1) positioned in the first temperature zone (12) is smaller than that of the core mold (1) positioned in the third temperature zone (14).
3. The mandrel for rapid pipe advance forming as claimed in claim 2, wherein: a second temperature zone (13) with the temperature between the first temperature zone (12) and the third temperature zone (14) is also arranged between the first temperature zone and the third temperature zone, and the outer diameter of the core mold (1) positioned in the second temperature zone (13) is smaller than that of the core mold (1) positioned in the third temperature zone (14) and larger than that of the core mold (1) positioned in the first temperature zone (12).
4. A forming oven for use with the mandrel of claim 1, wherein: the forming furnace comprises a forming furnace barrel, wherein the core mold (1) is sleeved in the forming furnace barrel, the forming furnace comprises an inner barrel (5) and an outer barrel (6), at least two heating chambers are arranged between the inner barrel (5) and the outer barrel (6), each heating chamber comprises a preheating chamber (2) and a curing chamber, and the core mold (1) corresponds to the outer diameter of the curing chamber which is smaller than the outer diameter of the preheating chamber (2).
5. The forming furnace of claim 4, wherein: the curing chamber comprises a first curing chamber (3) and a second curing chamber (4), the inner diameter of the first curing chamber (3) and part of the inner diameter of the second curing chamber (4) are both larger than the inner diameter of the preheating chamber (2), and the outer diameters of the core mold (1) corresponding to the first curing chamber (3), the second curing chamber (4) and the preheating chamber (2) are sequentially reduced.
6. The forming furnace of claim 5, wherein: the inner diameters of the first curing cavities (3) are larger than the inner diameter of the second curing cavity (4).
7. The forming furnace of claim 6, wherein: annular oil groove (11) have been seted up to inner tube (5) outer wall, oil groove (11) are followed the one end of inner tube (5) and are followed axial extension to the other end, urceolus (6) cover is established inner tube (5) outer wall clearance fit and with oil groove (11) form the closed oil circuit, the oil circuit both ends intercommunication oil pipe forms the return circuit.
8. The forming furnace of claim 7, wherein: the oil grooves (11) are spirally and equidistantly arranged around the outer wall of the inner cylinder (5).
9. The forming furnace of claim 7 or 8, wherein: the oil way two ends of the preheating cavity (2), the second curing cavity (4) and the first curing cavity (3) are respectively connected with an oil inlet pipe (8) and an oil outlet pipe (9) which correspond to each other, and the oil inlet pipe (8) and the oil outlet pipe (9) are communicated to an oil temperature machine (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120278586.3U CN215886832U (en) | 2021-02-01 | 2021-02-01 | Core mould for rapid propelling and forming of pipeline and forming furnace matched with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120278586.3U CN215886832U (en) | 2021-02-01 | 2021-02-01 | Core mould for rapid propelling and forming of pipeline and forming furnace matched with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215886832U true CN215886832U (en) | 2022-02-22 |
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ID=80338804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120278586.3U Active CN215886832U (en) | 2021-02-01 | 2021-02-01 | Core mould for rapid propelling and forming of pipeline and forming furnace matched with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215886832U (en) |
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2021
- 2021-02-01 CN CN202120278586.3U patent/CN215886832U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Zhongxin Sanitary Products Co.,Ltd. Assignor: JINHU THREEWOOD MACHINERY INDUSTRY Co.,Ltd. Contract record no.: X2023980049564 Denomination of utility model: Core molds and forming furnaces for rapid advancement of pipelines Granted publication date: 20220222 License type: Common License Record date: 20231206 |
|
| EE01 | Entry into force of recordation of patent licensing contract |