CN113334778A - Fastening device for thermoplastic plastic pipe fitting and antioxidant heating method - Google Patents
Fastening device for thermoplastic plastic pipe fitting and antioxidant heating method Download PDFInfo
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- CN113334778A CN113334778A CN202110674651.9A CN202110674651A CN113334778A CN 113334778 A CN113334778 A CN 113334778A CN 202110674651 A CN202110674651 A CN 202110674651A CN 113334778 A CN113334778 A CN 113334778A
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- thermoplastic
- pipe
- pipe fitting
- clamping piece
- fastening device
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/001—Joining in special atmospheres
- B29C66/0012—Joining in special atmospheres characterised by the type of environment
- B29C66/0014—Gaseous environments
- B29C66/00141—Protective gases
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to a fastening device of a thermoplastic plastic pipe fitting and an antioxidant heating method, and the fastening device comprises an automatic adjusting mechanism (4) and a motor (54), wherein the automatic adjusting mechanism (4) comprises a movable sealing plate (41), a first clamping piece (1) and a second clamping piece (2), the movable sealing plate (41) realizes the sealing of a pipe orifice of the thermoplastic plastic pipe fitting (6) through a first transmission mechanism, and the first clamping piece (1) and the second clamping piece (2) realize the clamping of the pipe wall of the thermoplastic plastic pipe fitting (6) through a second transmission mechanism; after the pipe orifice is sealed and the pipe wall is clamped synchronously, inert gas is injected into the thermoplastic pipe fitting (6) to ensure that the electromagnetic heating device (8) does not cause the brittleness of the joint caused by the high-temperature oxidation of the thermoplastic material in the pipe when the thermoplastic pipe fitting (6) is in hot melt connection with the connector.
Description
Technical Field
The invention relates to a fastening device of a thermoplastic plastic pipe fitting and an antioxidant heating method.
Background
The thermoplastic plastic pipe fitting is a chemical building material formed by high-tech compounding, and the chemical building material is a fourth major novel building material which is newly developed after steel, wood and cement. The chemical building materials are developed rapidly and greatly in China, and particularly, the novel environment-friendly plastic pipes are widely used, so that the revolution of replacing the traditional building materials is raised. The plastic pipe has the advantages of small water flow loss, energy conservation, material saving, ecological protection, convenient completion and the like, is widely applied to the fields of building water supply and drainage, town water supply and drainage, gas pipes and the like, and becomes the main force of a new century urban pipe network.
The existing connection method between thermoplastic plastic pipe fittings is to perform electromagnetic heating after connecting the pipe fittings, and then wait for cooling and solidifying.
The existing connection mode has the following technical defects: when the existing pipe is heated, the external heating curing quality of the pipe can be checked by naked eyes, but the inner wall structure of the pipe cannot be seen by naked eyes, the internal heating deformation is uncontrollably caused, the connection quality is also difficult to control, and in addition, the pipe is easily influenced by air oxidation during heating and thermoplastic molding, so that the internal connection quality is further deteriorated, and the service life of the pipe is directly influenced.
Disclosure of Invention
The invention designs a fastening device and an antioxidant heating method for a thermoplastic plastic pipe, and solves the technical problems that when the existing pipe is heated, the external heating and curing quality of the pipe can be checked by naked eyes, but the inner wall structure of the pipe cannot be seen by naked eyes, the internal heating deformation is uncontrollable, so that the connection quality is also difficult to control, and in addition, when the pipe is heated, the pipe is easily influenced by air oxidation, so that the internal connection quality is further deteriorated, and the service life of the pipe is directly influenced.
In order to solve the technical problems, the invention adopts the following scheme:
a fastening device for thermoplastic pipe fittings, characterized in that: the automatic pipe fitting sealing device comprises an automatic adjusting mechanism (4) and a motor (54), wherein the automatic adjusting mechanism (4) comprises a movable sealing plate (41), a first clamping piece (1) and a second clamping piece (2), the movable sealing plate (41) realizes pipe orifice sealing of a thermoplastic plastic pipe fitting (6) through a first transmission mechanism, and the first clamping piece (1) and the second clamping piece (2) realize clamping of the pipe wall of the thermoplastic plastic pipe fitting (6) through a second transmission mechanism; after the pipe orifice is sealed and the pipe wall is clamped synchronously, inert gas is injected into the thermoplastic pipe fitting (6) to ensure that the electromagnetic heating device (8) does not cause the brittleness of the joint caused by the high-temperature oxidation of the thermoplastic material in the pipe when the thermoplastic pipe fitting (6) is in hot melt connection with the connector.
Preferably, the first transmission mechanism comprises a hollow screw pipe (5), the end part of the hollow screw pipe (5) is positioned in the thermoplastic pipe (6) and an air outlet hole (58) at the end part of the hollow screw pipe (5) can output inert gas, the motor (54) drives the hollow screw pipe (5) to rotate, the movable sealing plate (41) is in threaded connection with the hollow screw pipe (5), and the movable sealing plate (41) can move axially along the hollow screw pipe (5) so as to press or leave the pipe orifice of the thermoplastic pipe (6).
Preferably, the second transmission mechanism comprises a first moving rack (52), a second moving rack (53) and a gear (51), two moving guide grooves (411) are formed in the moving sealing plate (41), one end of a first connecting driving rod (56) penetrates through one moving guide groove (411) to be fixedly connected with the first clamping piece (1), and the other end of the first connecting driving rod is connected with the first moving rack (52); one end of a second connecting driving rod (57) penetrates through the other moving guide groove (411) and is fixedly connected with the second clamping piece (2), the other end of the second connecting driving rod is connected with a second moving rack (53), the first moving rack (52) and the second moving rack (53) are arranged in parallel and are meshed through a gear (51), and the gear (51) is fixed on the hollow solenoid (5) and cannot displace.
Preferably, the first clip (1) and the second clip (2) are shaped in a semi-arc shape to be able to conform to the thermoplastic pipe (6).
Preferably, the clamping device further comprises a connecting part (3), a first movable rod (11), a first supporting rod (12) and a first rotating body (13) are sequentially arranged between one end of the connecting part (3) and the first clamping piece (1), and a second movable rod (21), a second supporting rod (22) and a second rotating body (23) are sequentially arranged between the other end of the connecting part (3) and the second clamping piece (2); an air inlet hole (31) is formed in the connecting portion (3), and the connecting portion (3) is communicated with the automatic adjusting mechanism (4).
Preferably, the input end of the air inlet hole (31) is connected with an external inert gas storage device, and the inert gas output from the output end of the air inlet hole (31) sequentially passes through the first air inlet pipe (42), the second air inlet pipe (55) and the hollow spiral pipe (5) and finally enters the thermoplastic plastic pipe fitting (6) from the air outlet hole (58) at the end part of the hollow spiral pipe (5).
Preferably, the connector is three way connection head (7), two joints of three way connection head (7) respectively with one thermoplastic pipe fitting (6) one end is connected to the junction uses an electromagnetic heating device (8) to heat simultaneously respectively, two thermoplastic pipe fitting (6) other end respectively with one fastening device (A) of thermoplastic pipe fitting is connected, fastening device (A) of thermoplastic pipe fitting carries out the mouth of pipe simultaneously and seals and the pipe wall presss from both sides tightly the back, to thermoplastic pipe fitting (6) inject into inert gas, inert gas follows three way connection head (7) third port output.
Preferably, the heating device further comprises a temperature sensor, the temperature sensor monitors the heating temperature of the electromagnetic heating device (8), when the heating temperature reaches a limit value C, the control unit controls the motor to rotate reversely, so that the pressure between the movable sealing plate (41), the first clamping piece (1) and the second clamping piece (2) and the thermoplastic pipe fitting (6) is reduced, and the phenomenon that the movable sealing plate (41) generates axial pressure to cause the hot melting part of the thermoplastic pipe fitting (6) to deform excessively is avoided.
An oxidation resistant heating method for thermoplastic pipe fittings comprises the following steps:
step 4, opening two electromagnetic heating devices (8) to respectively heat the two joints of the three-way connector (7) and the two thermoplastic plastic pipe fittings (6) simultaneously;
and 5, heating for t time, and naturally cooling.
Preferably, the temperature sensor monitors the heating temperature of the electromagnetic heating device (8), and when the heating temperature reaches a limit value C, the control unit controls the motor to rotate reversely, so that the pressure between the movable sealing plate (41), the first clamping piece (1) and the second clamping piece (2) and the thermoplastic pipe fitting (6) is reduced, and the phenomenon that the movable sealing plate (41) generates axial pressure to cause the hot-melting part of the thermoplastic pipe fitting (6) to deform excessively is avoided.
The fastening device and the antioxidant heating method for the thermoplastic plastic pipe fitting have the following beneficial effects:
(1) the fastening device not only can fix the thermoplastic plastic pipe fitting, but also can seal the pipe orifice to ensure that inert gas enters and flows out according to a designed route, so that the invisible area in the pipe cannot be influenced by oxygen when the pipe is heated, and the quality of heating and fixing is ensured.
(2) When the electromagnetic heating device is used on the three-way joint, two electromagnetic heating devices can be used for heating simultaneously, so that the problem that the prior heating device needs to be sequentially heated, and the later heating device can generate deformation influence on the first heating part to influence the quality of heating connection is solved.
(3) The invention uses the temperature sensor to monitor the heating temperature, thereby adjusting the state of the fastening device and avoiding the excessive deformation of the heating part caused by the pressure generated by the axial direction of the fastening device.
Drawings
FIG. 1: external schematic view of the fastening device of the thermoplastic pipe of the invention;
FIG. 2: a perspective view of the fastening device of the thermoplastic pipe fitting of the present invention;
FIG. 3: the invention discloses a structural schematic diagram of an automatic adjusting mechanism;
FIG. 4: the invention is used for connecting a thermoplastic plastic pipe fitting and a three-way connecting piece.
Description of reference numerals:
1-a first clip; 11-a first movable bar; 12 — a first support bar; 13 — a first rotor; 2-a second clip; 21-a second movable bar; 22 — a second support bar; 23-a second rotor; 3-a connecting part; 31-an inlet port; 4-automatic adjusting mechanism; 41-moving the sealing plate; 411 — moving guide groove; 42 — a first intake pipe; 5, a hollow spiral pipe; 51-a gear; 52 — a first moving rack; 53-second moving rack; 54-a motor; 55-a second inlet pipe; 56-first connecting driving rod; 57 — a second connecting drive rod; 58-air outlet holes; 6-thermoplastic pipe fittings; 7-three-way head; 71-third joint; 8-an electromagnetic heating device; a-the fastening device of the thermoplastic pipe fitting.
Detailed Description
The invention is further illustrated below with reference to fig. 1 to 4:
as shown in fig. 1, a fastening device for thermoplastic pipe fittings is characterized in that: the automatic adjusting mechanism 4 comprises a movable sealing plate 41, a first clamping piece 1 and a second clamping piece 2, the movable sealing plate 41 seals the pipe orifice of the thermoplastic plastic pipe fitting 6 through a first transmission mechanism, and the first clamping piece 1 and the second clamping piece 2 clamp the pipe wall of the thermoplastic plastic pipe fitting 6 through a second transmission mechanism; after the pipe orifice is sealed and the pipe wall is clamped synchronously, inert gas is injected into the thermoplastic pipe fitting 6 to ensure that the electromagnetic heating device 8 does not cause the brittleness of the joint caused by the high-temperature oxidation of the thermoplastic material in the pipe when the thermoplastic pipe fitting 6 and the connector are in hot melt connection.
The first clip 1 and the second clip 2 are shaped in a semi-arc shape to be able to fit with the thermoplastic pipe 6.
As shown in fig. 2, the clamping device further comprises a connecting portion 3, wherein a first movable rod 11, a first support rod 12 and a first rotating body 13 are sequentially arranged between one end of the connecting portion 3 and the first clamping piece 1, and a second movable rod 21, a second support rod 22 and a second rotating body 23 are sequentially arranged between the other end of the connecting portion 3 and the second clamping piece 2; the connecting part 3 is provided with an air inlet 31, and the connecting part 3 is communicated with the automatic adjusting mechanism 4.
As shown in fig. 3, the first transmission mechanism includes a hollow coil 5, the end of the hollow coil 5 is located in the thermoplastic pipe member 6 and the gas outlet 58 at the end of the hollow coil 5 can output inert gas, the motor 54 drives the hollow coil 5 to rotate, the movable sealing plate 41 is screwed with the hollow coil 5, and the movable sealing plate 41 can move axially along the hollow coil 5 to press or separate from the nozzle of the thermoplastic pipe member 6.
The second transmission mechanism comprises a first moving rack 52, a second moving rack 53 and a gear 51, two moving guide slots 411 are formed on the moving sealing plate 41, one end of a first connecting driving rod 56 penetrates through one moving guide slot 411 and is fixedly connected with the first clamping piece 1, and the other end of the first connecting driving rod is connected with the first moving rack 52; the second connecting driving rod 57 passes through the other moving guide slot 411, and then one end of the second connecting driving rod is fixedly connected with the second jaw 2, and the other end of the second connecting driving rod is connected with the second moving rack 53, the first moving rack 52 and the second moving rack 53 are arranged in parallel and are engaged through a gear 51, and the gear 51 is fixed on the hollow solenoid 5, and the two can not be displaced.
The input end of the air inlet hole 31 is connected with an external inert gas storage device, and the inert gas output from the output end of the air inlet hole 31 sequentially passes through the first air inlet pipe 42, the second air inlet pipe 55 and the hollow spiral pipe 5 and finally enters the thermoplastic plastic pipe fitting 6 from the air outlet hole 58 at the end part of the hollow spiral pipe 5.
As shown in fig. 4, the connector is a three-way connector 7, two connectors of the three-way connector 7 are respectively connected with one end of a thermoplastic pipe fitting 6, the joints are respectively heated by an electromagnetic heating device 8, the other ends of the two thermoplastic pipe fittings 6 are respectively connected with a fastening device a of the thermoplastic pipe fitting, after the fastening device a of the thermoplastic pipe fitting synchronously seals the pipe orifice and clamps the pipe wall, inert gas is injected into the thermoplastic pipe fitting 6, and the inert gas is output from a third port of the three-way connector 7.
The heating device further comprises a temperature sensor, the temperature sensor monitors the heating temperature of the electromagnetic heating device 8, when the heating temperature reaches a limit value C, the control unit controls the motor to rotate reversely, so that the pressure between the movable sealing plate 41, the first clamping piece 1, the second clamping piece 2 and the thermoplastic plastic pipe fitting 6 is reduced, and the phenomenon that the movable sealing plate 41 generates axial pressure to enable the hot-melting part of the thermoplastic plastic pipe fitting 6 to deform excessively is avoided.
An oxidation resistant heating method for thermoplastic pipe fittings comprises the following steps:
step 4, opening two electromagnetic heating devices 8 to respectively heat two joints of the three-way connector 7 and two thermoplastic plastic pipe fittings 6 simultaneously;
and 5, heating for t time, and naturally cooling.
The temperature sensor monitors the heating temperature of the electromagnetic heating device 8, when the heating temperature reaches a limit value C, the control unit controls the motor to rotate reversely, so that the pressure between the movable sealing plate 41, the first clamping piece 1, the second clamping piece 2 and the thermoplastic plastic pipe fitting 6 is reduced, and the phenomenon that the movable sealing plate 41 generates axial pressure to cause the hot-melting part of the thermoplastic plastic pipe fitting 6 to deform excessively is avoided.
The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. A fastening device for thermoplastic pipe fittings, characterized in that: the automatic pipe fitting sealing device comprises an automatic adjusting mechanism (4) and a motor (54), wherein the automatic adjusting mechanism (4) comprises a movable sealing plate (41), a first clamping piece (1) and a second clamping piece (2), the movable sealing plate (41) realizes pipe orifice sealing of a thermoplastic plastic pipe fitting (6) through a first transmission mechanism, and the first clamping piece (1) and the second clamping piece (2) realize clamping of the pipe wall of the thermoplastic plastic pipe fitting (6) through a second transmission mechanism; after the pipe orifice is sealed and the pipe wall is clamped synchronously, inert gas is injected into the thermoplastic pipe fitting (6) to ensure that the electromagnetic heating device (8) does not cause the brittleness of the joint caused by the high-temperature oxidation of the thermoplastic material in the pipe when the thermoplastic pipe fitting (6) is in hot melt connection with the connector.
2. The fastening device for thermoplastic pipes according to claim 1, characterized in that: the first transmission mechanism comprises a hollow screw pipe (5), the end part of the hollow screw pipe (5) is positioned in the thermoplastic pipe (6) and an air outlet hole (58) at the end part of the hollow screw pipe (5) can output inert gas, the motor (54) drives the hollow screw pipe (5) to rotate, the movable sealing plate (41) is in threaded connection with the hollow screw pipe (5), and the movable sealing plate (41) can move axially along the hollow screw pipe (5) so as to press or leave the pipe orifice of the thermoplastic pipe (6).
3. A fastening device for thermoplastic pipes according to claim 2, characterized in that: the second transmission mechanism comprises a first moving rack (52), a second moving rack (53) and a gear (51), two moving guide grooves (411) are formed in the moving sealing plate (41), one end of a first connecting driving rod (56) penetrates through one moving guide groove (411) to be fixedly connected with the first clamping piece (1), and the other end of the first connecting driving rod is connected with the first moving rack (52); one end of a second connecting driving rod (57) penetrates through the other moving guide groove (411) and is fixedly connected with the second clamping piece (2), the other end of the second connecting driving rod is connected with a second moving rack (53), the first moving rack (52) and the second moving rack (53) are arranged in parallel and are meshed through a gear (51), and the gear (51) is fixed on the hollow solenoid (5) and cannot displace.
4. The fastening device for thermoplastic pipes according to claim 1, characterized in that: the first clamping piece (1) and the second clamping piece (2) are semi-arc-shaped and can be attached to the thermoplastic plastic pipe fitting (6).
5. The fastening device for thermoplastic pipes according to claim 1, characterized in that: the clamping device is characterized by further comprising a connecting part (3), wherein a first movable rod (11), a first supporting rod (12) and a first rotating body (13) are sequentially arranged between one end of the connecting part (3) and the first clamping piece (1), and a second movable rod (21), a second supporting rod (22) and a second rotating body (23) are sequentially arranged between the other end of the connecting part (3) and the second clamping piece (2); an air inlet hole (31) is formed in the connecting portion (3), and the connecting portion (3) is communicated with the automatic adjusting mechanism (4).
6. The fastening device for thermoplastic pipes according to claim 1, characterized in that: the input end of the air inlet hole (31) is connected with an inert gas storage device outside, and inert gas output by the output end of the air inlet hole (31) sequentially passes through the first air inlet pipe (42), the second air inlet pipe (55) and the hollow solenoid (5) and finally enters the thermoplastic pipe fitting (6) from the air outlet hole (58) at the end part of the hollow solenoid (5).
7. The fastening device for thermoplastic pipes according to claim 1, characterized in that: the connector is three way connection head (7), two joints of three way connection head (7) are respectively with one thermoplastic pipe fitting (6) one end is connected to the junction uses an electromagnetic heating device (8) to heat simultaneously, two respectively thermoplastic pipe fitting (6) other end is respectively with one fastener (A) of thermoplastic pipe fitting is connected, fastener (A) of thermoplastic pipe fitting carries out the mouth of pipe simultaneously and seals and the pipe wall presss from both sides tightly the back, to thermoplastic pipe fitting (6) pour into inert gas into, inert gas follows three way connection head (7) third port output.
8. The fastening device for thermoplastic pipes according to claim 1, characterized in that: the heating device is characterized by further comprising a temperature sensor, the temperature sensor monitors the heating temperature of the electromagnetic heating device (8), when the heating temperature reaches a limit value C, the control unit controls the motor to rotate reversely, so that the pressure between the movable sealing plate (41), the first clamping piece (1), the second clamping piece (2) and the thermoplastic plastic pipe fitting (6) is reduced, and the phenomenon that the movable sealing plate (41) generates axial pressure to enable the hot melting part of the thermoplastic plastic pipe fitting (6) to deform excessively is avoided.
9. An oxidation resistant heating method for thermoplastic pipe fittings comprises the following steps:
step 1, two joints of a three-way connector (7) are respectively connected with one end of a thermoplastic pipe fitting (6);
step 2, the other ends of the two thermoplastic plastic pipe fittings (6) are respectively connected with a fastening device (A) of one thermoplastic plastic pipe fitting;
step 3, starting a motor, and after the fastening device (A) of the thermoplastic pipe synchronously seals the pipe orifice and clamps the pipe wall, releasing inert gas, wherein the inert gas is output from a third joint (71) of the three-way connector (7);
step 4, opening two electromagnetic heating devices (8) to respectively heat the two joints of the three-way connector (7) and the two thermoplastic plastic pipe fittings (6) simultaneously;
and 5, heating for t time, and naturally cooling.
10. The method of claim 9 for oxidation resistant heating of thermoplastic pipe, wherein: the temperature sensor monitors the heating temperature of the electromagnetic heating device (8), when the heating temperature reaches a limit value C, the control unit controls the motor to rotate reversely, so that the pressure between the movable sealing plate (41), the first clamping piece (1), the second clamping piece (2) and the thermoplastic plastic pipe fitting (6) is reduced, and the phenomenon that the movable sealing plate (41) generates axial pressure to enable the hot melting part of the thermoplastic plastic pipe fitting (6) to deform excessively is avoided.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110674651.9A CN113334778B (en) | 2021-06-18 | 2021-06-18 | Fastening device for thermoplastic plastic pipe fitting and antioxidant heating method |
| PCT/CN2021/124488 WO2022262157A1 (en) | 2021-06-14 | 2021-10-18 | Automatic clamping and plugging device for fuel gas pipeline, fastening device, and environmentally-friendly flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110674651.9A CN113334778B (en) | 2021-06-18 | 2021-06-18 | Fastening device for thermoplastic plastic pipe fitting and antioxidant heating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113334778A true CN113334778A (en) | 2021-09-03 |
| CN113334778B CN113334778B (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110674651.9A Active CN113334778B (en) | 2021-06-14 | 2021-06-18 | Fastening device for thermoplastic plastic pipe fitting and antioxidant heating method |
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| Country | Link |
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| CN (1) | CN113334778B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262157A1 (en) * | 2021-06-14 | 2022-12-22 | 胡德创 | Automatic clamping and plugging device for fuel gas pipeline, fastening device, and environmentally-friendly flue |
Citations (7)
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| WO2022262157A1 (en) * | 2021-06-14 | 2022-12-22 | 胡德创 | Automatic clamping and plugging device for fuel gas pipeline, fastening device, and environmentally-friendly flue |
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| Publication number | Publication date |
|---|---|
| CN113334778B (en) | 2022-01-04 |
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