CN110696320A - PVC pipe fitting injection molding machine - Google Patents

PVC pipe fitting injection molding machine Download PDF

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Publication number
CN110696320A
CN110696320A CN201911045856.XA CN201911045856A CN110696320A CN 110696320 A CN110696320 A CN 110696320A CN 201911045856 A CN201911045856 A CN 201911045856A CN 110696320 A CN110696320 A CN 110696320A
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CN
China
Prior art keywords
injection molding
extrusion
sleeve
base
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911045856.XA
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Chinese (zh)
Inventor
韩玉清
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201911045856.XA priority Critical patent/CN110696320A/en
Publication of CN110696320A publication Critical patent/CN110696320A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/252Drive or actuation means; Transmission means; Screw supporting means
    • B29C48/2526Direct drives or gear boxes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/254Sealing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • B29C48/288Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83Heating or cooling the cylinders
    • B29C48/832Heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/845Heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06PVC, i.e. polyvinylchloride

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a PVC pipe fitting injection molding machine which comprises a base, wherein a driving device is installed on the base, a feeding device is arranged above the base, a controller is installed on the base, an injection molding extrusion cylinder heating device is installed above the base, and a heating screw device is arranged inside the injection molding extrusion cylinder heating device. This device is through mechanical seal bearing one, mechanical seal bearing two and rotatory telescopic cooperation, drive the puddler and stir and mould plastics and extrude the sleeve and mould plastics the heat-conducting medium in the extrusion section of thick bamboo, extrude the cylindrical electric heating pipe of screw rod inside through the toper simultaneously and heat the heat-conducting medium in the heating recess, and stir the heat-conducting medium through stirring baffle, thereby make the PVC raw materials can heat through dual function, the effectual homogeneity that has guaranteed the PVC raw materials heating, simultaneously through the flow of heat-conducting medium, can make the device heat transfer effect better, make the PVC raw materials can be quick melt, thereby accelerate the speed that the PVC raw materials was extruded.

Description

PVC pipe fitting injection molding machine
Technical Field
The invention relates to the field of related equipment for PVC pipe production, in particular to an injection molding machine for PVC pipe fittings.
Background
PVC is a material with main component of polyvinyl chloride and other components added to enhance its heat resistance, toughness and ductility. The top layer of the surface film is paint, the main component of the middle layer is polyvinyl chloride, and the bottom layer is back coating adhesive, which is a synthetic material that is popular, popular and widely used in the world today.
In patent CN 201810194930.3-a tubular product extruder is used in PVC tubular product production, it is the same through first extrusion molding screw rod and second extrusion molding screw rod structure, and first extrusion molding screw rod and second extrusion molding screw rod are parallel to each other, and both interlock each other, first extrusion molding screw rod and second extrusion molding screw rod are mutually supported and are mixed the raw materials, thereby make the PVC raw materials carry out abundant integration, and the device's extrusion molding mould is heated comparatively evenly, can not cause the influence on the quality because of the deviation of temperature and to the production of tubular product.
But in the PVC pipe manufacturing process, the PVC raw materials only heats through the extrusion cylinder of injection molding machine, leads to being heated inhomogeneous of PVC material very easily, influences the extrusion rate of PVC raw materials, leads to the PVC raw materials to melt the speed.
Disclosure of Invention
The invention aims to solve the problems, and designs a PVC pipe fitting injection molding machine which has the function of uniform heating and solves the problem of nonuniform heating of the existing PVC injection molding machine during PVC material injection molding.
The technical scheme of the invention is that the PVC pipe fitting injection molding machine comprises a base, wherein a driving device is arranged on the base, a feeding device is arranged above the base, a controller is arranged on the base, an injection molding extrusion cylinder heating device is arranged above the base, and a heating screw device is arranged in the injection molding extrusion cylinder heating device;
the injection molding extrusion barrel heating device comprises an injection molding extrusion barrel arranged above a base, wherein a plurality of electric heating pipe holes are formed in the surface of the outer side of the injection molding extrusion barrel and are uniformly distributed on the injection molding extrusion barrel, electric heating pipes are arranged in the electric heating pipe holes, an injection molding extrusion barrel is arranged in the injection molding extrusion barrel, one end of the injection molding extrusion barrel is fixedly connected with one end of the outer side surface of the injection molding extrusion barrel, a first mechanical seal bearing is arranged at the other end of the inner part of the injection molding extrusion barrel, a second mechanical seal bearing is arranged at the other end of the outer side surface of the injection molding extrusion barrel, a rotary sleeve is arranged between the first mechanical seal bearing and the second mechanical seal bearing, a plurality of stirring rods are arranged at one end of the rotary sleeve, the stirring rods are uniformly distributed on the rotary sleeve, and an outer, the base is provided with a transmission bearing seat, a transmission bearing is arranged on the transmission bearing seat, a transmission shaft is arranged in the transmission bearing, transmission gears are arranged at two ends of the transmission shaft, and one of the transmission gears is meshed with the guide rail of the outer gear groove;
the heating screw device comprises a conical screw through hole formed in the center of the injection molding extrusion barrel, a conical extrusion screw is arranged in the conical screw through hole, one end of the conical extrusion screw is connected with the conical screw through hole through a mechanical seal bearing, an extrusion gear is installed at one end of the outer side surface of the conical extrusion screw, a heating groove is formed in one end of the side surface of the conical extrusion screw, a mechanical seal bearing is installed at one end of the inner side of the heating groove, a cylindrical electric heating pipe is installed in the mechanical seal bearing, the heating end of the cylindrical electric heating pipe is located inside the heating groove, a plurality of stirring baffles are installed on the outer side surface of the cylindrical electric heating pipe, and the stirring baffles are uniformly distributed on the cylindrical electric heating pipe.
Drive arrangement includes driving motor is installed to base upper surface one end, the rotation axis is installed to driving motor's rotatory end, be connected through the rotation bearing between rotation axis and the base, install drive gear one on the rotation axis, drive gear one and extrusion gear interlock mutually, install drive gear two on the rotation axis, drive gear two and another drive gear interlock mutually.
The feeding device comprises a PVC raw material inlet is formed in one end of the upper surface of the injection molding extrusion barrel, a feeding funnel is installed on the PVC raw material inlet, an agitating motor is installed inside the feeding funnel, and an agitating frame is installed at the rotating end of the agitating motor.
And a heat insulation shell is arranged on the surface of the outer side of the injection molding extrusion sleeve.
And a heat-conducting medium is arranged between the injection molding extrusion sleeve and the injection molding extrusion sleeve.
And a heat-conducting medium which is the same as that between the injection molding extrusion sleeve and the injection molding extrusion sleeve is arranged in the heating groove.
And a first temperature sensor is arranged on the side surface of one side inside the injection molding extrusion sleeve.
And a second temperature sensor is arranged on the cylindrical electric heating pipe.
The PVC pipe fitting injection molding machine manufactured by the technical scheme of the invention has the following beneficial effects:
this injection molding machine, through mechanical seal bearing one, mechanical seal bearing two and the cooperation of rotatory sleeve, drive the puddler and stir the heat-conducting medium in the extrusion sleeve of moulding plastics and the extrusion sleeve of moulding plastics, thereby guarantee the homogeneity of being heated of the extrusion sleeve of moulding plastics, can guarantee again that the heat-conducting medium can not reveal, thereby make things convenient for staff's operation, extrude the inside cylindrical electric heating pipe of screw rod through the toper simultaneously and heat the heat-conducting medium in the recess that heats, and stir the heat-conducting medium through stirring baffle, thereby make the PVC raw materials can heat through dual function, the effectual homogeneity that guarantees the PVC raw materials heating, flow through the heat-conducting medium simultaneously, can make the device heat transfer effect better, make the PVC raw materials can be quick melt, thereby accelerate the speed that the PVC raw materials was extruded.
Drawings
FIG. 1 is a schematic structural diagram of a PVC pipe fitting injection molding machine according to the present invention;
FIG. 2 is a schematic view of the injection molding barrel heating apparatus of the present invention;
FIG. 3 is a schematic view of a heated screw apparatus according to the present invention;
in the figure, 1, a base; 2. a controller; 3. injection molding the extruded sleeve; 4. an electrically heated tube bore; 5. an electric heating tube; 6. injection molding the extrusion cylinder; 7. a first mechanical seal bearing; 8. a second mechanical seal bearing; 9. rotating the sleeve; 10. a stirring rod; 11. an outer gear groove guide rail; 12. a transmission bearing seat; 13. a drive bearing; 14. a drive shaft; 15. a transmission gear; 16. a conical screw through hole; 17. a conical extrusion screw; 18. a third mechanical seal bearing; 19. extruding a gear; 20. heating the groove; 21. a mechanical seal bearing IV; 22. a cylindrical electric heating tube; 23. a stirring baffle; 24. a drive motor; 25. a rotating shaft; 26. a rotating bearing; 27. driving a gear I; 28. driving a gear II; 29. PVC raw material import; 30. a feed hopper; 31. a stirring motor; 32. a stirring frame; 33. a heat-insulating shell; 34. a heat-conducting medium; 35. a first temperature sensor; 36. and a second temperature sensor.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-3, in this embodiment:
in the device, the device supplies power by being connected with an external power supply, the external power supply is electrically connected with the controller 2, the electric heating pipe 5, the cylindrical electric heating pipe 22, the driving motor 24 and the stirring motor 31 for supplying power, the model of the controller 2 is an FX3U-48MT/DSS PLC, a control signal output end of the controller 2 is electrically connected with the electric heating pipe 5, the cylindrical electric heating pipe 22, the driving motor 24 and the stirring motor 31 respectively through transistors, and a signal receiving end of the controller 2 is electrically connected with signal transmitting ends of the first temperature sensor 35 and the second temperature sensor 36, so that the operation of the whole device is controlled.
The application is characterized in that the integral structure design of the injection molding extrusion cylinder heating device and the heating screw device is combined with the attached drawing 1, the attached drawing 2 and the attached drawing 3, the injection molding extrusion cylinder heating device comprises an injection molding extrusion sleeve 3 arranged above a base 1, a plurality of electric heating pipe holes 4 are formed in the outer side surface of the injection molding extrusion sleeve 3, the electric heating pipe holes 4 are uniformly distributed on the injection molding extrusion sleeve 3, electric heating pipes 5 are arranged in the electric heating pipe holes 4, an injection molding extrusion cylinder 6 is arranged in the injection molding extrusion sleeve 3, one end of the injection molding extrusion sleeve 3 is fixedly connected with one end of the outer side surface of the injection molding extrusion cylinder 6, a mechanical seal bearing I7 is arranged at the other end in the injection molding extrusion sleeve 3, a mechanical seal bearing II 8 is arranged at the other end of the outer side surface of the injection molding extrusion cylinder 6, a rotating sleeve 9 is arranged between the mechanical seal bearing I, the stirring rods 10 are uniformly distributed on the rotary sleeve 9, an outer gear groove guide rail 11 is mounted at one end of the outer side surface of the rotary sleeve 9, a transmission bearing seat 12 is mounted on the base 1, a transmission bearing 13 is mounted on the transmission bearing seat 12, a transmission shaft 14 is mounted in the transmission bearing 13, transmission gears 15 are mounted at two ends of the transmission shaft 14, and one of the transmission gears 15 is meshed with the outer gear groove guide rail 11; the heating screw device comprises an injection molding extrusion cylinder 6, a conical screw through hole 16 is formed in the center of the injection molding extrusion cylinder 6, a conical extrusion screw 17 is arranged inside the conical screw through hole 16, one end of the conical extrusion screw 17 is connected with the conical screw through hole 16 through a mechanical seal bearing III 18, an extrusion gear 19 is installed at one end of the outer side surface of the conical extrusion screw 17, a heating groove 20 is formed in one end of the side surface of the conical extrusion screw 17, a mechanical seal bearing IV 21 is installed at one end inside the heating groove 20, a cylindrical electric heating pipe 22 is installed in the mechanical seal bearing IV 21, the heating end of the cylindrical electric heating pipe 22 is located inside the heating groove 20, a plurality of stirring baffles 23 are installed on the outer side surface of the cylindrical electric heating pipe 22, the stirring baffles 23 are uniformly distributed on the cylindrical electric heating pipe 22, a heat conducting medium 34 is arranged between the injection molding extrusion cylinder 3 and the injection molding extrusion cylinder 6, and a (ii) a Through the mechanical seal bearing I7, the mechanical seal bearing II 8 and the rotating sleeve 9, the stirring rod 10 can stir the heat-conducting medium 34 between the injection molding extrusion sleeve 3 and the injection molding extrusion cylinder 6, thereby improving the heating efficiency of the electric heating pipe 5, and through the flowing of the heat-conducting medium 34, the injection molding extrusion cylinder 6 can be uniformly heated, thereby enabling the PVC raw material to be uniformly heated in the extrusion process, the heating groove 20 arranged inside the conical extrusion screw 17 is used for heating the heat-conducting medium 34 inside the heating groove 20 through the cylindrical electric heating pipe 22, thereby enabling the PVC raw material to be doubly heated, ensuring that the PVC raw material can be fully heated, and simultaneously enabling the heat-conducting medium to flow in the heating groove 20 through the effect of the stirring baffle plate 23, thereby enabling the conical extrusion screw 17 to be uniformly heated, thereby ensuring that the PVC raw material is uniformly heated in the extrusion process, the heating speed of the PVC raw material is effectively improved, and the extrusion speed of the PVC raw material can be ensured.
In the device, a driving device drives the device to operate through a driving motor 24 and a rotating shaft 25, and the device is driven to perform injection molding of PVC raw materials through meshing of a first driving gear 27 and an extrusion gear 19 and meshing of a second driving gear 28 and a transmission gear 15; feed arrangement passes through agitator motor 31 and drives stirring frame 32 and stir the PVC raw materials, makes the PVC raw materials enter into PVC raw materials import 29 through feed hopper 30 in to heat and mould plastics.
The working principle of the device is as follows: when the device is needed to be used for PVC pipe injection molding;
firstly, controlling the electric heating pipe 5 and the cylindrical electric heating pipe 22 to start working, wherein the electric heating pipe 5 starts working after being electrified, the heat-conducting medium 34 between the injection molding extrusion sleeve 3 and the injection molding extrusion sleeve 6 is heated, and the cylindrical electric heating pipe 22 starts working after being electrified, and the heat-conducting medium 34 in the heating groove 20 is heated;
simultaneously controlling a driving motor 24 to start working, wherein the driving motor 24 rotates to drive a rotating shaft 25 to start rotating, the rotating shaft 25 drives a driving gear I27 and a driving gear II 28 to start rotating, the conical extrusion screw 17 starts rotating through the meshing of the driving gear I27 and the extrusion gear 19, and the cylindrical motor heat pipe 22 is kept still through the action of a mechanical seal bearing IV 21, so that when the conical extrusion screw 17 rotates, a heat-conducting medium 34 in a heating groove 20 is stirred through the action of a stirring baffle plate 23, the heating speed of the heat-conducting medium 34 is accelerated, and meanwhile, the heat-conducting medium 34 is in flow contact with the conical extrusion screw 17, so that heat is quickly transferred to the conical extrusion screw 17, and the conical extrusion screw 17 is quickly heated;
the second driving gear 27 is meshed with the second driving gear 15 to drive the transmission shaft 14 to rotate, so that the rotary sleeve 9 is rotated through the meshing of the other second driving gear 15 and the outer gear groove guide rail 11, the rotary sleeve 9 is rotated to drive the stirring rod 10 to rotate, the heat-conducting medium 34 between the injection molding extrusion sleeve 3 and the injection molding extrusion cylinder 6 is stirred, the heat-conducting medium 34 is rotated and flows, the heating speed of the heat-conducting medium 34 is increased, meanwhile, the heat-conducting medium 34 flows through stirring, the heating of the injection molding extrusion cylinder 6 is increased, and the injection molding extrusion cylinder 6 is rapidly heated;
in the heating process, the temperature of the heat-conducting medium 34 between the injection molding extrusion sleeve 3 and the injection molding extrusion sleeve 6 is detected through the first temperature sensor 35, the temperature of the heat-conducting medium 34 inside the heating groove 20 is detected through the second temperature sensor 36, when the temperatures of the heat-conducting medium 34 detected by the first temperature sensor 35 and the second temperature sensor 36 reach a set value, the electric heating pipe 5 and the cylindrical electric heating pipe 22 are respectively controlled to stop working, and when the temperatures of the heat-conducting medium 34 detected by the first temperature sensor 35 and the second temperature sensor 36 are lower than a minimum set value, the electric heating pipe 5 and the cylindrical electric heating pipe 22 are controlled to work again to heat the heat-conducting medium 34 again;
after the heat-conducting medium 34 is heated to a proper temperature, at the moment, a worker manually places the stirred PVC raw material into the feeding hopper 30, and controls the stirring motor 31 to start working, the stirring motor 31 drives the stirring frame 32 to rotate, so that the PVC raw material in the feeding hopper 30 is stirred, the PVC raw material enters the injection molding extrusion cylinder 6 from the feeding hopper 30 through the PVC raw material inlet 29 by the self gravity, and starts to move in the injection molding extrusion cylinder 6 by the rotation of the conical extrusion screw 17;
in-process that the PVC raw materials removed, the PVC raw materials extrude screw rod 17 and mould plastics through the toper and extrude a 6 two-way heat transfer, makes the PVC raw materials be heated fast to melt into liquid, extrude screw rod 17's quick rotation through the toper, the PVC raw materials that the messenger melts for liquid are extruded to moulding plastics through conical screw through-hole 16 and extrude a 6 outsides to carry out the shaping work of PVC pipe fitting with PVC raw materials liquid through other devices.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims (8)

1. A PVC pipe fitting injection molding machine comprises a base (1), wherein a driving device is installed on the base (1), a feeding device is arranged above the base (1), and a controller (2) is installed on the base (1), and is characterized in that an injection molding extrusion barrel heating device is installed above the base (1), and a heating screw device is arranged inside the injection molding extrusion barrel heating device;
the injection molding extrusion barrel heating device comprises a base (1) above which an injection molding extrusion sleeve (3) is installed, a plurality of electric heating pipe holes (4) are formed in the surface of the outer side of the injection molding extrusion sleeve (3), the electric heating pipe holes (4) are uniformly distributed on the injection molding extrusion sleeve (3), an electric heating pipe (5) is installed in each electric heating pipe hole (4), an injection molding extrusion barrel (6) is arranged in the injection molding extrusion sleeve (3), one end of the injection molding extrusion sleeve (3) is fixedly connected with one end of the outer side surface of the injection molding extrusion barrel (6), a mechanical seal bearing I (7) is installed at the other end inside the injection molding extrusion sleeve (3), a mechanical seal bearing II (8) is installed at the other end of the outer side surface of the injection molding extrusion barrel (6), and a rotating sleeve (9) is installed between the mechanical seal bearing I (7) and the mechanical seal bearing, a plurality of stirring rods (10) are installed at one end of the rotating sleeve (9), the stirring rods (10) are uniformly distributed on the rotating sleeve (9), an outer gear groove guide rail (11) is installed at one end of the outer side surface of the rotating sleeve (9), a transmission bearing seat (12) is installed on the base (1), a transmission bearing (13) is installed on the transmission bearing seat (12), a transmission shaft (14) is installed in the transmission bearing (13), transmission gears (15) are installed at two ends of the transmission shaft (14), and one of the transmission gears (15) is meshed with the outer gear groove guide rail (11);
the heating screw device comprises a plastic extrusion cylinder (6) which is provided with a conical screw through hole (16) at the center, a conical extrusion screw (17) is arranged inside the conical screw through hole (16), one end of the conical extrusion screw (17) is connected with the conical screw through hole (16) through a mechanical seal bearing III (18), an extrusion gear (19) is installed at one end of the outer side surface of the conical extrusion screw (17), a heating groove (20) is formed at one end of the side surface of the conical extrusion screw (17), a mechanical seal bearing IV (21) is installed at one end inside the heating groove (20), a cylindrical electric heating pipe (22) is installed in the mechanical seal bearing IV (21), the heating end of the cylindrical electric heating pipe (22) is located inside the heating groove (20), and a plurality of stirring baffles (23) are installed on the outer side surface of the cylindrical electric heating pipe (22), the stirring baffles (23) are uniformly distributed on the cylindrical electric heating pipe (22).
2. The PVC pipe fitting injection molding machine as claimed in claim 1, wherein the driving device comprises a driving motor (24) mounted at one end of the upper surface of the base (1), a rotating shaft (25) mounted at the rotating end of the driving motor (24), the rotating shaft (25) is connected with the base (1) through a rotating bearing (26), a first driving gear (27) is mounted on the rotating shaft (25), the first driving gear (27) is meshed with the extrusion gear (19), a second driving gear (28) is mounted on the rotating shaft (25), and the second driving gear (28) is meshed with another driving gear (15).
3. The PVC pipe fitting injection molding machine according to claim 1, wherein the feeding device comprises a PVC raw material inlet (29) formed in one end of the upper surface of the injection extrusion cylinder (6), a feeding funnel (30) is installed on the PVC raw material inlet (29), a stirring motor (31) is installed inside the feeding funnel (30), and a stirring frame (32) is installed at the rotating end of the stirring motor (31).
4. The PVC pipe injection molding machine according to claim 1, wherein the outer surface of the injection molding extrusion sleeve (3) is provided with a heat preservation shell (33).
5. The PVC pipe injection molding machine according to claim 1, wherein a heat conducting medium (34) is provided between the injection molding extrusion sleeve (3) and the injection molding extrusion cylinder (6).
6. The PVC pipe injection molding machine according to claim 1, wherein the heating groove (20) is internally provided with the same heat conducting medium (34) as that between the injection molding extrusion sleeve (3) and the injection molding extrusion cylinder (6).
7. The PVC pipe injection molding machine according to claim 1, wherein a first temperature sensor (35) is installed on the inner side surface of the injection extrusion sleeve (3).
8. The PVC pipe fitting injection molding machine as claimed in claim 1, wherein a second temperature sensor (36) is mounted on the cylindrical electric heating pipe (22).
CN201911045856.XA 2019-10-30 2019-10-30 PVC pipe fitting injection molding machine Withdrawn CN110696320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911045856.XA CN110696320A (en) 2019-10-30 2019-10-30 PVC pipe fitting injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911045856.XA CN110696320A (en) 2019-10-30 2019-10-30 PVC pipe fitting injection molding machine

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Publication Number Publication Date
CN110696320A true CN110696320A (en) 2020-01-17

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CN201911045856.XA Withdrawn CN110696320A (en) 2019-10-30 2019-10-30 PVC pipe fitting injection molding machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590865A (en) * 2020-06-01 2020-08-28 扬州市苏达科技发展有限公司 High-efficient environmental protection hot melting device of plastics master batch
CN112476837A (en) * 2020-12-04 2021-03-12 河北来利翼腾塑胶制造有限公司 PVC raw materials adds heat-pressure and melts device

Citations (4)

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BE711851A (en) * 1967-03-29 1968-07-15
CN104723532A (en) * 2015-04-10 2015-06-24 天津煊生源高分子科技有限公司 Barrel heater of extruder
CN107584743A (en) * 2017-09-07 2018-01-16 宁波金亿精密机械有限公司 A kind of screw barrel with heating function
CN109228115A (en) * 2018-10-11 2019-01-18 佛山市顺德区印美印刷有限公司 A kind of IMD decorative panel process units

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CN104723532A (en) * 2015-04-10 2015-06-24 天津煊生源高分子科技有限公司 Barrel heater of extruder
CN107584743A (en) * 2017-09-07 2018-01-16 宁波金亿精密机械有限公司 A kind of screw barrel with heating function
CN109228115A (en) * 2018-10-11 2019-01-18 佛山市顺德区印美印刷有限公司 A kind of IMD decorative panel process units

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590865A (en) * 2020-06-01 2020-08-28 扬州市苏达科技发展有限公司 High-efficient environmental protection hot melting device of plastics master batch
CN112476837A (en) * 2020-12-04 2021-03-12 河北来利翼腾塑胶制造有限公司 PVC raw materials adds heat-pressure and melts device

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Application publication date: 20200117