CN110861281A - Integrated production equipment for thick-wall tube blank and bar - Google Patents
Integrated production equipment for thick-wall tube blank and bar Download PDFInfo
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- CN110861281A CN110861281A CN201810882477.5A CN201810882477A CN110861281A CN 110861281 A CN110861281 A CN 110861281A CN 201810882477 A CN201810882477 A CN 201810882477A CN 110861281 A CN110861281 A CN 110861281A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000013016 damping Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 239000012768 molten material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Abstract
The invention discloses integrated production equipment for thick-wall tube blanks and bars, which comprises an extruder, wherein a die main body is connected to the right end of the extruder, a mouth die and a core die are connected to the right end of the die main body, a flow passage is formed between the mouth die and the core die, an external cooling die is connected to the right end of the mouth die, a damping machine is connected to the right end of the external cooling die, a material rest is arranged on the right side of the damping machine and placed on the ground, the size of the mouth die is gradually increased from small to large, the right end of the mouth die is connected with the external cooling die, the size of the core die is gradually increased from small to large or gradually decreased from large to large, an internal cooling die is connected to the right end of the core die. The invention can produce thick-wall tube blank and bar, and the produced finished product has good roundness, and is compact without shrinkage cavity.
Description
Technical Field
The invention relates to pipe production equipment, in particular to thick-wall pipe blank and bar integrated production equipment.
Background
In large-caliber or high-pressure PE and PP pipeline systems, the matching difficulty of pipe fittings such as a tee joint, a flange, a reducing joint, a steel-plastic joint, a ball valve and the like is very high, the main reason is that the pipe fittings are more and more difficult to realize by using the existing pipe fitting forming technology along with the increase of the size and the thickness of a product, particularly the defect of shrinkage cavity cannot be overcome, and the problem of whether the pipe fittings are suitable in economy exists under the condition of less using amount. The problems can be effectively solved by using a large-caliber pipe blank or a solid bar.
In the manufacturing process of the thick-wall pipe disclosed in patent document CN200510044884, the method uses common PE pipe production equipment, adjusts the mould and the process, adopts an extrusion and drawing process, and the pipe blank moves forward by the traction force of a tractor, although the thick-wall pipe blank is produced, the following disadvantages exist: solid bars cannot be produced; the thickness of the produced tube blank is limited to reach SDR 5; the deviation of the tube blank thickness is large.
Disclosure of Invention
The invention aims to provide integrated production equipment of a thick-wall tube blank and a bar, which has good roundness, is compact and has no shrinkage cavity, and can produce the thick-wall tube blank and the bar.
The technical scheme is as follows: the integrated production equipment for the thick-wall tube blank and the bar comprises an extruder, wherein the right end of the extruder is connected with a die main body, the right end of the die main body is connected with a neck die and a core die, a flow passage is formed between the neck die and the core die, the right end of the neck die is connected with an external cooling die, the right end of the external cooling die is connected with a damping machine, a material rack is arranged on the right side of the damping machine and placed on the ground, the external cooling die is provided with an external cooling die water inlet and an external cooling die water outlet, the damping machine is provided with a damping block, the damping block is provided, the right end of the core mold is connected with an outer cooling mold, the size of the core mold is gradually increased from small to large or gradually decreased from large to large, an inner cooling mold is connected to the right end of the core mold, an inner cooling mold water inlet and an inner cooling mold water outlet are formed in the inner cooling mold, and the core mold is connected to the right end of the core mold and provided with a core mold tip when the size of the core mold is gradually decreased from large to.
The damping machine is directly connected with the external cooling mould, and the damping machine is directly fixed on the external cooling mould sleeve or is connected with the external cooling mould sleeve through a steel wire rope.
The hole tapering of outer cooling mould is along extruding the direction grow, and the external diameter tapering of interior cooling mould is along extruding the direction diminish, and the working face spraying of outer cooling mould and interior cooling mould is on-stick layer, and the working face spraying of runner has high temperature resistance on-stick layer.
Compared with the prior art, the invention has the following advantages: the size of the mouth mold is gradually increased from small to large, the size of the core mold is gradually increased or decreased, one production line can produce tube blanks or rods with various specifications, and the size of the inner hole of the thick-wall tube with the same outer diameter can be adjusted through the gradually-changed core mold; the inside and outside of the tube blank are cooled, the inside and outside cooling sizing is designed, a hard shell is formed on the inner surface and the outer surface of the tube blank after the tube blank is cooled, and the inside and outside dimensions and the roundness of the tube blank are well controlled; the extrusion process is adopted for production, the cooling die is directly fixed on the forming die, the damping machine is designed, the damping machine is connected with the outer cooling device, the thrust force borne by the damping machine is transmitted to the outer cooling device, even if the damping machine bears great thrust force, the damping machine is not particularly fixed, the smooth production of large-caliber thick-wall pipes and bars is possible, the pipe blank bears certain resistance force during extrusion, the molten material in the pipe blank can form certain pressure, and the material can be supplemented from the direction of the extruder in the process that the pipe blank is gradually cooled, hardened and shrunk from the inner surface and the outer surface, so that the shrinkage defect is avoided; the runner surfaces of the die and the cooling die are all coated with the high-temperature-resistant non-stick layer, so that the flow resistance of the molten material is reduced, the pressure loss of the molten material in the tube blank is reduced, the product is compact and has no shrinkage cavity defect, and the surface of the cooling die is designed with taper to prevent extrusion expansion.
Drawings
FIG. 1 is a schematic structural view of an integrated thick-walled tube blank and bar production apparatus of the present invention;
FIG. 2 is a schematic view of the tube blank production apparatus of the present invention;
FIG. 3 is a schematic view of a bar production plant according to the invention;
FIG. 4 is a schematic view of the external cooling mold of the present invention;
FIG. 5 is a schematic view of the internal cooling mold of the present invention;
fig. 6 is a schematic structural view of the damping machine of the present invention.
Detailed Description
Referring to fig. 1-6, the integrated production equipment for thick-wall tube blanks and bars comprises an extruder 1, a mold main body 2 is connected to the right end of the extruder 1, a neck mold 3 and a core mold 8 are connected to the right end of the mold main body 2, a flow passage is formed between the neck mold 3 and the core mold 8, an external cooling mold 4 is connected to the right end of the neck mold 3, a damper 5 is connected to the right end of the external cooling mold 4, a material rack 6 is arranged on the right side of the damper 5 and placed on the ground, an external cooling mold water inlet 14 and an external cooling mold water outlet 15 are arranged on the external cooling mold 4, a damping block 11 is arranged on the damper 5, a damping guide rod 12 matched with the damping block 11 is arranged on the damping block 11, the size of the neck mold 3 is gradually increased from small to small, the right end of the neck mold is connected with the external cooling mold 4, the size of the, the right end of the core mould 8 is connected with a core mould tip 13 when the size of the core mould is changed from large to minimum.
The damper 5 is directly connected with the outer cooling mold 4, and the damper 5 is directly fixed on the outer cooling mold sleeve or connected with the outer cooling mold sleeve through a steel wire rope.
The hole tapering of outer cooling mould 4 diminishes along extruding direction, and the external diameter tapering of interior cooling mould 9 diminishes along extruding direction, and the working face spraying of outer cooling mould 4 and interior cooling mould 9 is on-stick layer, and the working face spraying of runner 18 has high temperature resistant on-stick layer.
The working process of producing the thick-wall tube blank comprises the following steps: equipment referring to fig. 2, a die 3 and a core mold 8 of appropriate sizes are selected according to actual needs, and then an outer cooling die 4 and an inner cooling die 9 of appropriate sizes are selected for installation, the damping machine 5 is adjusted to a proper size through the damping block 11 and the damping guide rod 12, the plastic raw material is plasticized through the extruder 1 to form a molten material, the molten material enters the die main body 2 to form an annular size, enters a flow channel formed between the neck die 3 and the core die 8 to form a tube blank molten material 10 with an inner diameter and an outer diameter meeting requirements, enters a gap between the outer cooling die 4 and the inner cooling die 9, the inner wall and the outer wall of the tube blank 7 are cooled and hardened under the circulation action of cooling water in the outer cooling die 4 and the inner cooling die 9, enter the damping machine 5, the pipe billet 7 is subjected to forward resistance, and a finished product with good roundness and without shrinkage holes is formed after full natural cooling through the material rack 6 and finally cut by a chain saw.
The working process of producing the bar material comprises the following steps: the equipment is shown in figure 3, a mouth mold 3 and a core mold 8 with proper sizes are selected according to actual needs, a core mold tip 13 is connected to the right end of the core mold 8, an external cooling mold 4 with proper sizes is selected for installation, a damping machine 5 is adjusted to be proper in size through a damping block 11 and a damping guide rod 12, plastic raw materials are plasticized through an extruder 1 to form a bar molten material, the bar molten material enters a mold main body 2 to form an annular size, a required bar molten material 18 is formed through a flow channel formed between the mouth mold 3 and the core mold 8, the bar molten material enters the external cooling mold 4, the outer wall of a bar 19 is cooled and hardened under the cooling water circulation effect of the external cooling mold 4 and enters the damping machine 5, the bar 19 is subjected to forward resistance, a finished product with good roundness and compact and no shrinkage cavity is formed after full and natural cooling through a material rack.
Claims (3)
1. Thick wall pipe and integrative production facility of rod, its characterized in that: comprises an extruder (1), the right end of the extruder (1) is connected with a mold main body (2), the right end of the mold main body (2) is connected with a neck mold (3) and a core mold (8), a flow passage is formed between the neck mold (3) and the core mold (8), the right end of the neck mold (3) is connected with an external cooling mold (4), the right end of the external cooling mold (4) is connected with a damper (5), the right side of the damper (5) is provided with a material rack (6) which is placed on the ground, the external cooling mold (4) is provided with an external cooling mold water inlet (14) and an external cooling mold water outlet (15), the damper (5) is provided with a damping block (11), the damping block (11) is provided with a damping guide rod (12) which is matched with the damping block for use, the size of the neck mold (3) is gradually increased from small to small, the right end of the neck mold, the right end of the core mold (8) is connected with an internal cooling mold (9), the internal cooling mold is provided with an internal cooling mold water inlet and an internal cooling mold water outlet, and the right end of the core mold (8) is connected with a core mold tip (13) when the size of the core mold is gradually changed from large to minimum.
2. The thick-walled tube blank and bar integrated production apparatus according to claim 1, wherein: the damping machine (5) is directly connected with the external cooling mould (4), and the damping machine (5) is directly fixed on the external cooling mould sleeve or is connected with the external cooling mould sleeve through a steel wire rope.
3. The thick-walled tube blank and bar integrated production apparatus according to claim 1, wherein: the hole tapering of outer cooling mould (4) is along extruding the direction grow, and the external diameter tapering of interior cooling mould (9) is along extruding the direction diminish, and the working face spraying of outer cooling mould (4) and interior cooling mould (9) is on-stick layer, and the working face spraying of runner (18) has high temperature resistance on-stick layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810882477.5A CN110861281A (en) | 2018-08-06 | 2018-08-06 | Integrated production equipment for thick-wall tube blank and bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810882477.5A CN110861281A (en) | 2018-08-06 | 2018-08-06 | Integrated production equipment for thick-wall tube blank and bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110861281A true CN110861281A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810882477.5A Pending CN110861281A (en) | 2018-08-06 | 2018-08-06 | Integrated production equipment for thick-wall tube blank and bar |
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| Country | Link |
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| CN (1) | CN110861281A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120715Y (en) * | 2007-09-30 | 2008-09-24 | 南京金紫鑫工程塑料有限公司 | Extrusion equipment for fire resistant polymer rod bar |
| CN106915053A (en) * | 2017-03-30 | 2017-07-04 | 海南联塑科技实业有限公司 | A kind of device and control method for not shutting down different size tubing of changing the line of production |
| CN208774020U (en) * | 2018-08-06 | 2019-04-23 | 朱兴国 | Heavy wall pipe and bar integrated production equipment |
-
2018
- 2018-08-06 CN CN201810882477.5A patent/CN110861281A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120715Y (en) * | 2007-09-30 | 2008-09-24 | 南京金紫鑫工程塑料有限公司 | Extrusion equipment for fire resistant polymer rod bar |
| CN106915053A (en) * | 2017-03-30 | 2017-07-04 | 海南联塑科技实业有限公司 | A kind of device and control method for not shutting down different size tubing of changing the line of production |
| CN208774020U (en) * | 2018-08-06 | 2019-04-23 | 朱兴国 | Heavy wall pipe and bar integrated production equipment |
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