CN115214107B - Sizing device for plastic pipe production - Google Patents
Sizing device for plastic pipe production Download PDFInfo
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- CN115214107B CN115214107B CN202210871598.6A CN202210871598A CN115214107B CN 115214107 B CN115214107 B CN 115214107B CN 202210871598 A CN202210871598 A CN 202210871598A CN 115214107 B CN115214107 B CN 115214107B
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- Prior art keywords
- pipe
- negative pressure
- liquid storage
- storage chamber
- chamber
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
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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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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a sizing device for plastic pipe production, which comprises a vacuum sizing sleeve and a cooling water tank, wherein the vacuum sizing sleeve comprises an outer sleeve and an inner diameter cylinder, a cooling chamber and a negative pressure cavity are arranged between the outer sleeve and the inner diameter cylinder, and the negative pressure cavity is communicated with the inner diameter cylinder. The invention has the advantages that when the pipeline is sized, the negative pressure cavity is divided into a plurality of negative pressure chambers by the plurality of baffles, each negative pressure chamber is in different pressure states, the negative pressure of the negative pressure chamber close to the air inlet pipe is smaller because the air inlet pipe is arranged at the inlet close to the inner diameter cylinder, the pipeline at the inlet is not cooled to be softer, the sizing can be carried out through the smaller negative pressure, when the cooling texture of the pipeline is hardened through the cooling chamber, the pipeline reaches the negative pressure chamber part with larger negative pressure, thereby ensuring the effect of the sizing of the negative pressure, and the cooling chamber is arranged in the whole stroke of the sizing of the negative pressure, facilitating the cooling of the pipeline and avoiding the suction of the soft pipe groove by the negative pressure cavity.
Description
Technical Field
The invention relates to the technical field of plastic pipe production, in particular to a novel sizing device for plastic pipe production.
Background
In the prior art, a vacuum sizing device is generally adopted when the pipeline is sized so that the inner wall of the pipeline is attached to the vacuum sizing device under external pressure, but because the pipeline is still in a molten state when the pipeline just enters the inside of the sizing device, softer pipeline materials are easily sucked into the inside of the vacuum sizing device if the negative pressure of the vacuum sizing device is too large, the quality of the pipeline can be influenced when the use of the vacuum sizing device is influenced, and the sizing is not facilitated after the pipeline is cooled and hardened if the negative pressure of the vacuum sizing device is not strong, so that the sizing effect of the pipeline is not good; the sizing device in the prior art is provided with the cooling device to cool the pipeline, but the cooling device is generally arranged after sizing, so that the problem that the pipeline at the inlet of the sizing device is softer is not convenient to solve, and the cooling device needs to provide additional power to perform water cooling circulation, so that the cost of the prior art is higher.
Therefore, we propose a novel sizing device for plastic pipe production to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a vacuum sizing device is inconvenient to size pipelines in different states, additional power is needed to be provided for a cooling device, energy is not saved, and the like.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a plastic tubing production is with novel sizing device, includes vacuum sizing cover and cooling water tank, vacuum sizing cover includes outer sleeve and internal diameter section of thick bamboo, be equipped with cooling chamber and negative pressure chamber between outer sleeve and the internal diameter section of thick bamboo, negative pressure chamber and internal diameter section of thick bamboo intercommunication, cooling chamber sealing connection has inlet tube and outlet pipe, sealing connection has intake pipe and outlet duct on the negative pressure chamber, the negative pressure chamber sets up the periphery at the cooling chamber, the negative pressure chamber is through a plurality of communicating pipes and internal diameter section of thick bamboo intercommunication, and is a plurality of communicating pipe runs through the cooling chamber, negative pressure intracavity sealing connection has a plurality of baffles, every be equipped with the pressure valve one on the baffle, the intake pipe sets up the import department that is close to the internal diameter section of thick bamboo, be equipped with a plurality of feed liquor pipes and drain pipe on the water tank, a plurality of feed liquor pipe and outlet pipe intercommunication, a plurality of drain pipe and inlet tube intercommunication.
Preferably, a first liquid storage chamber and a second liquid storage chamber are formed in the water tank through a partition plate, at least two liquid inlet pipes are arranged on the first liquid storage chamber and the second liquid storage chamber respectively, a plurality of liquid outlet pipes are arranged on the first liquid storage chamber and the second liquid storage chamber respectively, a gas pipe is further connected to the first liquid storage chamber and the second liquid storage chamber in a sealing mode, a second pressure valve is arranged in the gas pipe, the gas inlet pipe is connected with the gas pipe in a sealing mode, and the first liquid storage chamber and the second liquid storage chamber are arranged in a sealing mode.
Preferably, a plurality of gas-supply pipes are communicated through a first connecting pipe, a plurality of liquid inlet pipes are communicated through a second connecting pipe, a plurality of liquid outlet pipes are communicated through a third connecting pipe, the first connecting pipe is in sealing connection with an air inlet pipe, the second connecting pipe is in sealing connection with a water outlet pipe, the third connecting pipe is in sealing connection with a water inlet pipe, and an electromagnetic valve I is arranged in each of the liquid inlet pipes, the liquid outlet pipes and the gas-supply pipes.
Preferably, the first liquid storage chamber and the second liquid storage chamber are both provided with a vent pipe, and the vent pipe is internally provided with a second electromagnetic valve.
Preferably, the first liquid storage chamber and the second liquid storage chamber are made of heat conducting materials, and a heat insulation plate is arranged in the partition plate.
Preferably, the inner side wall of the inner diameter cylinder is coated with a smooth layer, and the inner wall of the inner diameter cylinder is made of a heat conducting material.
Compared with the prior art, the invention has the beneficial effects that:
1. when the pipeline is sized, the air outlet pipe is communicated with an external negative pressure device, the negative pressure cavity is divided into a plurality of negative pressure chambers by a plurality of baffles, when the negative pressure chambers are communicated through the first pressure valve on the baffle, each negative pressure chamber is in different pressure states, the air inlet pipe is arranged at the inlet close to the inner diameter cylinder, so that the negative pressure of the negative pressure chamber close to the air inlet pipe is smaller, the pipeline at the inlet is not cooled to be softer, the sizing can be performed through the smaller negative pressure, the pipeline can reach the negative pressure chamber part with larger negative pressure after the cooling quality of the pipeline is hardened through the cooling chamber, the effect of the negative pressure sizing can be ensured, the cooling chamber is arranged in the whole stroke of the negative pressure sizing, the cooling of the pipeline is facilitated, and the pipeline groove with softer quality is prevented from being sucked by the negative pressure cavity;
2. because the air inlet pipe is internally provided with the second pressure valve, when the negative pressure of the negative pressure chamber close to the air inlet pipe is lower than the pressure of the second pressure valve, air in the air conveying pipe is sucked into the negative pressure cavity, and the air pressure in the liquid storage chamber or the liquid storage chamber II is reduced, so that water is sucked into the liquid storage chamber I or the liquid storage chamber II from the liquid inlet pipe, and the liquid inlet pipe sucks out the water in the cooling chamber through the water outlet pipe, so that the cooling water in the cooling chamber can be circulated, an additional driving device is not required to be provided in the water circulation process, and the economic cost is saved;
3. because inlet tube and drain pipe intercommunication, therefore when the solenoid valve of feed liquor pipe department was opened in liquid storage chamber one, solenoid valve one and solenoid valve two of drain pipe in liquid storage chamber two also can be opened to circulate the cooling water of liquid storage chamber two parts to liquid storage chamber one in, change the water tank after the circulation finishes and carry out the hydrologic cycle, so can cool off the water in the water tank, two water tanks carry out the hydrologic cycle in turn, avoid the waste of water resource.
Drawings
FIG. 1 is a schematic diagram of a novel sizing device for plastic pipe production;
FIG. 2 is a schematic side view of a novel sizing device for plastic pipe production according to the present invention;
FIG. 3 is a schematic structural view of a water tank, a vent pipe and other structures in the novel sizing device for plastic pipe production;
FIG. 4 is a schematic structural view of structures such as a baffle plate and a heat insulation plate in the novel sizing device for plastic pipe production;
FIG. 5 is a schematic structural view of the outer sleeve and inner diameter tube in the novel sizing device for plastic pipe production;
FIG. 6 is a schematic structural view of structures such as a baffle and a negative pressure cavity in the novel sizing device for plastic pipe production;
fig. 7 is a schematic structural view of a cooling chamber, a communicating pipe and other structures in the novel sizing device for plastic pipe production.
In the figure: 1 vacuum sizing sleeve, 2 water tank, 3 outer sleeve, 4 internal diameter tube, 5 cooling chamber, 6 negative pressure cavity, 7 inlet tube, 8 outlet tube, 9 communicating tube, 10 baffle, 11 pressure valve I, 12 feed liquor pipe, 13 drain pipe, 14 intake pipe, 15 outlet pipe, 16 baffle, 17 reservoir I, 18 reservoir II, 19 gas-supply pipe, 20 pressure valve II, 21 connecting tube I, 22 connecting tube II, 23 connecting tube III, 24 solenoid valve I, 25 vent pipe, 26 solenoid valve II, 27 heat insulating board.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-7, a novel sizing device for plastic pipe production comprises a vacuum sizing sleeve 1 and a cooling water tank 2, wherein the vacuum sizing sleeve 1 comprises an outer sleeve 3 and an inner diameter cylinder 4, a cooling chamber 5 and a negative pressure cavity 6 are arranged between the outer sleeve 3 and the inner diameter cylinder 4, the negative pressure cavity 6 is communicated with the inner diameter cylinder 4, the cooling chamber 5 is in sealed connection with a water inlet pipe 7 and a water outlet pipe 8, an air inlet pipe 14 and an air outlet pipe 15 are in sealed connection with the negative pressure cavity 6, the negative pressure cavity 6 is arranged at the periphery of the cooling chamber 5, the negative pressure cavity 6 is communicated with the inner diameter cylinder 4 through a plurality of communicating pipes 9, a plurality of communicating pipes 9 penetrate through the cooling chamber 5, a plurality of baffles 10 are in sealed connection with the negative pressure cavity 6, a pressure valve I11 is arranged on each baffle 10, the air inlet pipe 14 is arranged at an inlet position close to the inner diameter cylinder 4, a plurality of liquid inlet pipes 12 and liquid outlet pipes 13 are arranged on the water tank 2, the liquid inlet pipes 12 are communicated with the water outlet pipe 8, and the liquid outlet pipes 13 are communicated with the water inlet pipe 7;
when the pipeline is sized, the air outlet pipe 15 is communicated with an external negative pressure device, the negative pressure cavity 6 is divided into a plurality of negative pressure chambers by the plurality of baffles 10, when the negative pressure chambers are communicated by the first pressure valve 11 on the baffle 10, each negative pressure chamber is in different pressure states, the air inlet pipe 14 is arranged at the inlet close to the inner diameter cylinder 4, so that the negative pressure of the negative pressure chamber close to the air inlet pipe 14 is smaller, the pipeline at the inlet is not cooled to be softer, the sizing can be performed through the smaller negative pressure, the pipeline can reach the negative pressure chamber part with larger negative pressure after the cooling texture of the pipeline is hardened through the cooling chamber 5, the negative pressure sizing effect can be ensured, the cooling chamber 5 is arranged in the whole stroke of the negative pressure sizing, the cooling of the pipeline is facilitated, and the pipeline groove with softer texture is prevented from being sucked by the negative pressure cavity 6;
a first liquid storage chamber 17 and a second liquid storage chamber 18 are formed in the water tank 2 through a partition plate 16, at least two water tanks 2 are arranged, a plurality of liquid inlet pipes 12 are respectively arranged on the first liquid storage chamber 17 and the second liquid storage chamber 18, a plurality of liquid outlet pipes 13 are respectively arranged on the first liquid storage chamber 17 and the second liquid storage chamber 18, a gas transmission pipe 19 is also connected to the first liquid storage chamber 17 and the second liquid storage chamber 18 in a sealing manner, a second pressure valve 20 is arranged in the gas transmission pipe 19, the gas inlet pipe 14 is connected with the gas transmission pipe 19 in a sealing manner, and the first liquid storage chamber 17 and the second liquid storage chamber 18 are arranged in a sealing manner;
because the air inlet pipe 14 is internally provided with the second pressure valve 20, when the negative pressure of the negative pressure chamber close to the air inlet pipe 14 is lower than the pressure of the second pressure valve 20, the air in the air conveying pipe 19 is sucked into the negative pressure cavity 6, and the air pressure in the liquid storage chamber or the liquid storage chamber II 18 is reduced, so that water is sucked into the liquid storage chamber I17 or the liquid storage chamber II 18 from the liquid inlet pipe 12, and the liquid inlet pipe 12 sucks the water in the cooling chamber 5 through the water outlet pipe 8, so that the cooling water in the cooling chamber 5 can be circulated, and an additional driving device is not required to be provided in the water circulation process, so that the economic cost is saved;
the plurality of air delivery pipes 19 are communicated through a first connecting pipe 21, the plurality of liquid inlet pipes 12 are communicated through a second connecting pipe 22, the plurality of liquid outlet pipes 13 are communicated through a third connecting pipe 23, the first connecting pipe 21 is in sealing connection with the air inlet pipe 14, the second connecting pipe 22 is in sealing connection with the water outlet pipe 8, the third connecting pipe 23 is in sealing connection with the water inlet pipe 7, and electromagnetic valves 24 are arranged in each of the liquid inlet pipes 12, the liquid outlet pipes 13 and the air delivery pipes 19;
the first liquid storage chamber 17 and the second liquid storage chamber 18 are respectively provided with a vent pipe 25, the second electromagnetic valve 26 is arranged in the vent pipe 25, the first liquid storage chamber 17 and the second liquid storage chamber 18 are made of heat conducting materials, the heat conducting materials can conveniently dissipate heat of circulated hot water so that the circulated hot water can be cooled rapidly, the heat insulating plate 27 is arranged in the partition plate 16, the heat insulating plate 27 can prevent heat conduction between the first liquid storage chamber 17 and the second liquid storage chamber 18 from being conducted mutually so as to ensure the heat conducting effect of cooling water, the inner side wall of the inner diameter cylinder 4 is coated with a smooth layer, the smooth layer is convenient for the movement of a pipeline, the inner wall of the inner diameter cylinder 4 is made of heat conducting materials, and the heat conducting materials of the inner diameter cylinder 4 can conveniently cool the pipeline and facilitate the hardening of the pipeline;
because inlet tube 7 and drain pipe 13 intercommunication, therefore when the solenoid valve one 24 of liquid inlet tube 12 department in liquid storage chamber one 17, solenoid valve one 24 and solenoid valve two 26 of liquid outlet tube 13 in liquid storage chamber two 18 also can be opened to circulate the cooling water of liquid storage chamber two 18 part to liquid storage chamber one 17 through cooling chamber 5, change water tank 2 after the circulation is accomplished and carry out the hydrologic cycle, so can cool off the water in the water tank 2, two water tanks 2 alternate water circulation, avoid the waste of water resource.
When the pipeline is sized, the air outlet pipe 15 is communicated with an external negative pressure device, the negative pressure cavity 6 is divided into a plurality of negative pressure chambers by the plurality of baffles 10, when the negative pressure chambers are communicated by the first pressure valve 11 on the baffle 10, each negative pressure chamber is in different pressure states, the air inlet pipe 14 is arranged at the inlet close to the inner diameter cylinder 4, so that the negative pressure of the negative pressure chamber close to the air inlet pipe 14 is smaller, the pipeline at the inlet is not cooled to be softer, the sizing can be carried out through the smaller negative pressure, when the pipeline is cooled to be harder through the cooling chamber 5, the negative pressure chamber part with larger negative pressure can be sized, the second pressure valve 20 is arranged in the air inlet pipe 14, therefore, when the negative pressure of the negative pressure chamber close to the air inlet pipe 14 is lower than the pressure of the second pressure valve 20, the air in the air delivery pipe 19 can be sucked into the negative pressure cavity 6, and the air pressure in the first liquid storage chamber or the second liquid storage chamber 18 is reduced, so that water is sucked into the first liquid storage chamber 17 or the second liquid storage chamber 18 from the liquid storage chamber 12, the water inlet pipe 12 can suck the cooling chamber 5 through the water outlet pipe 8, and the cooling chamber 7 can be circulated through the water outlet pipe 8 and the cooling chamber 13, and the water outlet pipe 12 can be communicated with the water inlet pipe 13;
because the water inlet pipe 7 is communicated with the liquid outlet pipe 13, when the electromagnetic valve I24 at the liquid inlet pipe 12 in the liquid storage chamber I17 is opened, the electromagnetic valve I24 and the electromagnetic valve II 26 of the liquid outlet pipe 13 in the liquid storage chamber II 18 are also opened, so that cooling water in the liquid storage chamber II 18 is circulated into the liquid storage chamber I17 through the cooling chamber 5, and after circulation is finished, the water tank 2 is replaced to circulate, so that water in the water tank 2 can be cooled, and the two water tanks 2 can alternately circulate.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a sizing device is used in plastic tubing production, includes vacuum sizing cover (1) and coolant tank (2), vacuum sizing cover (1) includes outer sleeve (3) and internal diameter section of thick bamboo (4), be equipped with cooling chamber (5) and negative pressure chamber (6) between outer sleeve (3) and internal diameter section of thick bamboo (4), negative pressure chamber (6) and internal diameter section of thick bamboo (4) intercommunication, cooling chamber (5) sealing connection has inlet tube (7) and outlet pipe (8), sealing connection has intake pipe (14) and outlet duct (15) on negative pressure chamber (6), a serial communication pipe (9) set up in the periphery of cooling chamber (5), negative pressure chamber (6) are through a plurality of communicating pipe (9) and internal diameter section of thick bamboo (4) intercommunication, a plurality of communicating pipe (9) run through cooling chamber (5), sealing connection has a plurality of baffles (10) in negative pressure chamber (6), are equipped with pressure valve (11) on every baffle (10), intake pipe (14) set up in the import department that is close to internal diameter section of thick bamboo (4), be equipped with on water tank (2) a plurality of intake pipes (12) and outlet pipe (12), a plurality of liquid outlet pipes (13) are communicated with the water inlet pipe (7).
2. The sizing device for plastic pipe production according to claim 1, wherein a first liquid storage chamber (17) and a second liquid storage chamber (18) are formed in the water tank (2) through a partition plate (16), the water tank (2) is at least provided with two liquid inlet pipes (12) respectively arranged on the first liquid storage chamber (17) and the second liquid storage chamber (18), the liquid outlet pipes (13) respectively arranged on the first liquid storage chamber (17) and the second liquid storage chamber (18), a gas transmission pipe (19) is further connected to the first liquid storage chamber (17) and the second liquid storage chamber (18) in a sealing manner, a second pressure valve (20) is arranged in the gas transmission pipe (19), the gas inlet pipe (14) is connected with the gas transmission pipe (19) in a sealing manner, and the first liquid storage chamber (17) and the second liquid storage chamber (18) are arranged in a sealing manner.
3. Sizing device for plastic pipe production according to claim 2, characterized in that a plurality of gas pipes (19) are communicated through a first connecting pipe (21), a plurality of liquid inlet pipes (12) are communicated through a second connecting pipe (22), a plurality of liquid outlet pipes (13) are communicated through a third connecting pipe (23), the first connecting pipe (21) is in sealing connection with the gas inlet pipe (14), the second connecting pipe (22) is in sealing connection with the water outlet pipe (8), the third connecting pipe (23) is in sealing connection with the water inlet pipe (7), and electromagnetic valves (24) are arranged in each of the liquid inlet pipes (12), the liquid outlet pipes (13) and the gas inlet pipes (19).
4. A sizing device for plastic pipe production according to claim 3, characterized in that the first liquid storage chamber (17) and the second liquid storage chamber (18) are respectively provided with a vent pipe (25), and the vent pipe (25) is internally provided with a second electromagnetic valve (26).
5. A sizing device for plastic pipe production according to claim 3, characterized in that the first liquid storage chamber (17) and the second liquid storage chamber (18) are both made of heat conducting materials, and a heat insulation plate (27) is arranged in the partition plate (16).
6. Sizing device for plastic pipe production according to claim 1, characterized in that the inner side wall of the inner diameter tube (4) is coated with a smooth layer, the inner wall of the inner diameter tube (4) being of a heat conducting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210871598.6A CN115214107B (en) | 2022-07-22 | 2022-07-22 | Sizing device for plastic pipe production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210871598.6A CN115214107B (en) | 2022-07-22 | 2022-07-22 | Sizing device for plastic pipe production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115214107A CN115214107A (en) | 2022-10-21 |
| CN115214107B true CN115214107B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210871598.6A Active CN115214107B (en) | 2022-07-22 | 2022-07-22 | Sizing device for plastic pipe production |
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| CN (1) | CN115214107B (en) |
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|---|---|---|---|---|
| WO1990010530A1 (en) * | 1989-03-10 | 1990-09-20 | Uponor N.V. | Method for extruding a plastic pipe |
| EP0425944A2 (en) * | 1989-10-31 | 1991-05-08 | INOEX GmbH | Installation for the extrusion of plastic tubes |
| US5346379A (en) * | 1991-10-17 | 1994-09-13 | Conpro Gmbh | Extruding device for extruding plastic tubing with a measuring device for measuring the wall thickness of the plastic tubing |
| US5516270A (en) * | 1989-09-22 | 1996-05-14 | Jrt-Finland Oy | Sizing tool |
| CN102303403A (en) * | 2011-06-12 | 2012-01-04 | 扬州金鑫管业有限公司 | Outside diameter sizing sleeve for steel wire mesh skeleton plastic composite pipe |
| CN102343659A (en) * | 2010-07-09 | 2012-02-08 | 因诺伊克斯有限责任公司 | Method and device for starting a pipe extrusion line |
| CN110116168A (en) * | 2019-05-24 | 2019-08-13 | 深圳市沃尔热缩有限公司 | A kind of segment expansion mold |
| CN209832561U (en) * | 2019-04-25 | 2019-12-24 | 湖北汉塑管业集团有限公司 | Vacuum sizing mill |
| CN210100626U (en) * | 2019-01-14 | 2020-02-21 | 山东太极龙塑胶科技有限公司 | Same-stroke steam-water separation sizing sleeve |
| CN212554990U (en) * | 2020-05-25 | 2021-02-19 | 山东建龙塑胶有限公司 | Negative pressure cooling and shaping device for extruded plastic pipe |
-
2022
- 2022-07-22 CN CN202210871598.6A patent/CN115214107B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990010530A1 (en) * | 1989-03-10 | 1990-09-20 | Uponor N.V. | Method for extruding a plastic pipe |
| US5516270A (en) * | 1989-09-22 | 1996-05-14 | Jrt-Finland Oy | Sizing tool |
| EP0425944A2 (en) * | 1989-10-31 | 1991-05-08 | INOEX GmbH | Installation for the extrusion of plastic tubes |
| US5346379A (en) * | 1991-10-17 | 1994-09-13 | Conpro Gmbh | Extruding device for extruding plastic tubing with a measuring device for measuring the wall thickness of the plastic tubing |
| CN102343659A (en) * | 2010-07-09 | 2012-02-08 | 因诺伊克斯有限责任公司 | Method and device for starting a pipe extrusion line |
| CN102303403A (en) * | 2011-06-12 | 2012-01-04 | 扬州金鑫管业有限公司 | Outside diameter sizing sleeve for steel wire mesh skeleton plastic composite pipe |
| CN210100626U (en) * | 2019-01-14 | 2020-02-21 | 山东太极龙塑胶科技有限公司 | Same-stroke steam-water separation sizing sleeve |
| CN209832561U (en) * | 2019-04-25 | 2019-12-24 | 湖北汉塑管业集团有限公司 | Vacuum sizing mill |
| CN110116168A (en) * | 2019-05-24 | 2019-08-13 | 深圳市沃尔热缩有限公司 | A kind of segment expansion mold |
| CN212554990U (en) * | 2020-05-25 | 2021-02-19 | 山东建龙塑胶有限公司 | Negative pressure cooling and shaping device for extruded plastic pipe |
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| Publication number | Publication date |
|---|---|
| CN115214107A (en) | 2022-10-21 |
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