CN110014565B - Positive and negative double-circuit evenly-cooled PVC pipe material extrusion equipment - Google Patents

Positive and negative double-circuit evenly-cooled PVC pipe material extrusion equipment Download PDF

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Publication number
CN110014565B
CN110014565B CN201910165308.4A CN201910165308A CN110014565B CN 110014565 B CN110014565 B CN 110014565B CN 201910165308 A CN201910165308 A CN 201910165308A CN 110014565 B CN110014565 B CN 110014565B
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Prior art keywords
pipe
oil return
oil outlet
tank
oil
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CN201910165308.4A
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CN110014565A (en
Inventor
邓胜万
黄小花
骆卫忠
陈春渊
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ZHEJIANG LIANCHANG TECHNOLOGY Co.,Ltd.
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Zhejiang Lianchang Technology Co ltd
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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
    • B29C48/03—Extrusion 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a positive and negative double-path uniformly-cooled PVC pipe material extrusion device, which structurally comprises a motor, a hopper, a heater, a threaded extrusion cylinder, a machine head, a cooling device, a traction roller, a discharge port, an electric cabinet and a discharge pipe, wherein the motor is arranged on the top end surface of one end of the electric cabinet and horizontally and mechanically connected with the threaded extrusion cylinder, the machine head is arranged at the tail end of the threaded extrusion cylinder, the machine head and the threaded extrusion cylinder are movably connected together, the discharge pipe is horizontally connected and fixed at the other end of the machine head, and the cooling device is wrapped outside the discharge pipe. Uniform cooling is achieved.

Description

Positive and negative double-circuit evenly-cooled PVC pipe material extrusion equipment
Technical Field
The invention relates to the field of PVC pipes, in particular to a positive and negative double-way uniformly-cooled PVC pipe material extrusion device.
Background
The PVC pipe needs to be melted, extruded and cooled by an extruder to be shaped, most manufacturers generally adopt an air blower to cool the PVC pipe in order to stabilize the plasticizing effect of the PVC pipe, however, the air blower cannot form backflow for a cylindrical PVC pipe extrusion die head, and the wind speed sensed by the position close to the air blower and the position far away from the air blower is inconsistent, so that the cooling effects of the two places are different.
Disclosure of Invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides a PVC pipe material extrusion equipment of positive and negative double-circuit homogeneous cooling, its structure includes motor, hopper, heater, screw extrusion section of thick bamboo, aircraft nose, cooling device, carry over pinch rolls, discharge gate, electric cabinet, discharging pipe, electric cabinet one end top end face is settled there is the motor, motor and the horizontal mechanical connection of screw extrusion section of thick bamboo, screw extrusion section of thick bamboo end is equipped with the aircraft nose, aircraft nose and screw extrusion section of thick bamboo activity link up together, the cooling device is being wrapped up in fixed discharging pipe of aircraft nose other end horizontal linking and outside, the carrying over pinch rolls is all installed on the both sides about that the aircraft nose was kept away from to cooling device, that the end that cooling device was kept away from to the carry over pinch rolls is the discharge gate, screw extrusion section of.
As a further optimization of this technical scheme, cooling device includes inlet, backward flow exchange system, hemisphere shell, positive and negative return circuit structure, square shell is wrapping up the discharging pipe, the hemisphere shell is linking up directly over the square shell, the inlet has been seted up in the middle of hemisphere shell top is positive, the hemisphere shell is equipped with backward flow exchange system, be equipped with two positive and negative return circuit structures in the square shell, two positive and negative return circuit structures are parallel to each other, positive and negative return circuit structure links up fixedly with backward flow exchange system machinery.
As a further optimization of the technical scheme, the backflow exchange system comprises an oil return box, a suction pump, an oil outlet box, oil return pipes, an underframe and oil outlet pipes, wherein the underframe is arranged at the bottom end inside the hemispherical shell, the oil return box is arranged right above the underframe, the cross section of the oil return box is of an inverted U-shaped structure, the top end of the oil return box is communicated with the liquid inlet, the oil outlet box is arranged in the middle of the U-shaped opening of the oil return box, the oil outlet box and the oil return box are separated by a partition plate, the partition plate is vertically welded on the top end surface of the underframe, the top end of the oil outlet box and the two ends of the oil return box are respectively and mechanically connected through the suction pump positioned at the top of the oil outlet box, two groups of oil outlet pipes are arranged at the bottom of the oil outlet box, each group of the two oil outlet pipes are communicated with a positive and inverse loop structure after the, the oil return pipe is communicated with the positive and negative loop structure, and the oil return box、The height difference exists between the oil outlet tank and the oil outlet tank.
As a further optimization of the technical scheme, a blocking plate is arranged on the outer side of the oil return pipe far away from the oil outlet tank, and the bottom of the blocking plate is fixed on the underframe through screws.
As a further optimization of the technical scheme, the forward and reverse loop structure comprises a first annular pipe and a second annular pipe, the first annular pipe wraps the discharge pipe, the head end and the tail end of the first annular pipe are respectively communicated with the oil outlet pipe and the oil return pipe, the second annular pipe wraps the first annular pipe, and the head end and the tail end of the second annular pipe are respectively communicated with the oil outlet pipe and the oil return pipe.
As a further optimization of the technical scheme, the head end of the second annular pipe communicated with the oil return pipe is provided with a blade-shaped through hole.
Advantageous effects
Compared with the prior art, the PVC pipe material extruding equipment with the positive and reverse double paths for uniform cooling has the following advantages:
1. the invention utilizes the cooperation of the oil outlet tank, the oil return pipe and the suction pump to ensure that the oil outlet tank and the oil return pipe form backflow, thereby ensuring that the flow of the cooling liquid cannot generate temperature difference.
2. According to the invention, the first annular pipe and the second annular pipe are mutually overlapped and the direction of connecting the oil outlet pipe is opposite, so that the discharge pipe is uniformly cooled by the forward and reverse loops, and the temperature of the cooling liquid wrapped by the same cross section of the discharge pipe is ensured to be unchanged.
3. The design of the blade-shaped perforation of the invention is convenient for the mutual superposition of the first annular pipe and the second annular pipe, and does not disturb the flow of the cooling oil in the second annular pipe.
4. The design of the cutting plate avoids the problem that the oil return pipe is not long enough to fall off from the bottom of the oil return box due to the fact that the oil return pipe is lifted outwards.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic sectional view of a forward-reverse dual path uniformly cooled PVC pipe material extrusion apparatus according to the present invention.
FIG. 2 is a schematic cross-sectional view of a cooling device according to the present invention.
Fig. 3 is a detailed structural diagram of the reflux exchange system of the present invention.
Fig. 4 is a detailed structural diagram of the cooling device of the present invention.
Fig. 5 is a schematic perspective view of the fuel outlet tank of the present invention.
Fig. 6 is a schematic perspective view of the second annular tube of the present invention after being unfolded and flattened.
In the figure: the device comprises a motor 1, a hopper 2, a heater 3, a threaded extrusion cylinder 4, a machine head 5, a cooling device 6, a traction roller 7, a discharge hole 8, an electric cabinet 9 and a discharge pipe 10、 Liquid inlet 61, reflux exchange system 62, hemispherical shell 63, positive and negative loop structure 64 and square shell 65、 Oil return tank 621, suction pump 622, oil outlet tank 623, oil return pipe 624, chassis 626 and oil outlet pipe 627、Interception plate 625、A first annular pipe 641 and a second annular pipe 642.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Examples
Referring to fig. 1 to 6, the present invention provides a PVC pipe material extruding apparatus for positive and negative dual path uniform cooling, the structure of the device comprises a motor 1, a hopper 2, a heater 3, a threaded extrusion cylinder 4, a machine head 5, a cooling device 6, a traction roller 7, a discharge hole 8, an electric cabinet 9 and a discharge pipe 10, the top end surface of one end of the electric cabinet 9 is provided with a motor 1, the motor 1 is horizontally and mechanically connected with the thread extrusion cylinder 4, the tail end of the threaded extrusion cylinder 4 is provided with a machine head 5, the machine head 5 and the threaded extrusion cylinder 4 are movably connected together, the other end of the machine head 5 is horizontally connected with a fixed discharge pipe 10 and is wrapped by a cooling device 6, traction rollers 7 are mounted on the upper surface and the lower surface of the end, far away from the machine head 5, of the cooling device 6, the end, far away from the cooling device 6, of the traction rollers 7 is a discharge hole 8, and the threaded extrusion cylinder 4 and the electric cabinet 9 are fixed through threads.
Cooling device 6 includes inlet 61, backflow exchange system 62, hemisphere shell 63, positive contrary loop structure 64, square shell 65 is wrapping up discharging pipe 10, link up hemisphere shell 63 directly over square shell 65, inlet 61 has been seted up in the middle of hemisphere shell 63 top is positive, hemisphere shell 63 is equipped with backflow exchange system 62, be equipped with two positive contrary loop structures 64 in the square shell 65, two positive contrary loop structures 64 are parallel to each other, positive contrary loop structure 64 links up fixedly with backflow exchange system 62 machinery.
The backflow exchange system 62 comprises an oil return tank 621, a suction pump 622, an oil outlet tank 623, an oil return pipe 624, a bottom frame 626 and oil outlet pipes 627, wherein the bottom frame 626 is arranged at the bottom end inside the hemispherical shell 63, the oil return tank 621 is arranged right above the bottom frame 626, the cross section of the oil return tank 621 is an inverted U-shaped structure, the topmost end of the oil return tank 621 is communicated with the liquid inlet 61, the oil outlet tank 623 is arranged right in the middle of the U-shaped opening of the oil return tank 621, the oil outlet tank 623 and the oil return tank 621 are separated by a partition plate, the partition plate is vertically welded on the top end surface of the bottom frame 626, the top end of the oil outlet tank 623 and the two ends of the oil return tank 621 are respectively and mechanically connected through the suction pump 622 positioned at the top of the oil outlet tank 623, two groups of oil outlet pipes 627 are arranged at the bottom of the oil outlet tank 623, each group of the two oil outlet pipes 627 are communicated with a positive and reverse loop structure 64, the oil return pipe 624 is communicated with the positive and negative loop structure 64, and the oil return tank 621、The outlet tank 623 has a height difference in height.
An interception plate 625 is arranged on the outer side of the oil return pipe 624 far away from the oil outlet tank 623, and the bottom of the interception plate 625 is fixed on a base frame 626 through screws, so that the problem that the oil return pipe 624 is lifted outwards due to heavy weight and cannot fall off from the bottom of the oil return tank 621 due to insufficient length is solved.
The forward and reverse loop structure 64 comprises a first annular pipe 641 and a second annular pipe 642, the first annular pipe 641 wraps the discharge pipe 10, the head end and the tail end of the first annular pipe are respectively communicated with the oil outlet pipe 627 and the oil return pipe 624, and the second annular pipe 642 wraps the first annular pipe 641, and the head end and the tail end of the second annular pipe are respectively communicated with the oil outlet pipe 627 and the oil return pipe 624.
The second annular pipe 642 is communicated with the oil return pipe 624, and a blade-shaped perforation is arranged at the head end of the second annular pipe 642 for the first annular pipe 641 to pass through from the head end to the tail end, and the design of the blade-shaped perforation does not interfere with the flow of the cooling oil in the second annular pipe 642.
The cooling liquid enters the two ends of the oil return tank 621 from the liquid inlet 61, because of the height difference between the oil return tank 621 and the oil outlet tank 623, the suction pump 622 continuously pumps the cooling oil in the oil return tank 621 into the oil outlet tank 623, the cooling liquid entering the oil outlet tank 623 respectively drops into the head end of the first annular pipe 641 and the tail end of the second annular pipe 642 from the oil outlet pipe 627 at the bottom, flows to the lowest end of the first annular pipe 641 and the second annular pipe 642 under the action of gravity, overflows to the other end after reaching the lowest end, reaches the oil return tank 621 from the oil return pipe 624, is sucked by the suction pump 622 to form a circulation, in the process, the first annular pipe 641 and the second annular pipe 642 are mutually superposed and the direction of connecting the oil outlet pipe 627 is opposite, the effect of cooling the discharge pipe 10 by a positive and reverse loop is achieved, the main principle of uniform cooling is that the temperature of the cooling liquid reaching the tail end after the first annular pipe 641 circles round is relatively high, the cooling liquid which is just discharged by wrapping the second annular pipe 642 is cooled, so that the cooling liquid at the head end and the tail end of the first annular pipe 641 cannot generate temperature difference, the temperature of the cooling liquid wrapped by the same cross section of the discharging pipe 10 is ensured to be consistent by the second annular pipe 642, the purpose of uniform cooling is realized, the circular PVC pipe inside the discharging pipe 10 is finally uniformly cooled, and the plasticizing effect is good.
The invention solves the problem that most manufacturers generally adopt an air blower for cooling in order to stabilize the plasticizing effect of a PVC pipe, but the air blower cannot form backflow for a cylindrical PVC pipe extrusion die head and the air speed sensed by the position close to the air blower is not consistent with the air speed sensed by the position far away from the air blower, so that the cooling effects of the two positions are different, through the mutual combination of the components, the invention utilizes the mutual matching of a liquid inlet 61, a backflow exchange system 62, a hemispherical shell 63, a forward and reverse loop structure 64 and the like, utilizes the mutual superposition of a first annular pipe 641 and a second annular pipe 642 and the opposite direction of the connection of an oil outlet pipe 627 to cause opposite flow directions of cooling liquid, and the cooling liquid is pumped by the suction pump 622 continuously to circulate continuously, so that the temperature of the cooling liquid wrapped by the same cross section of the discharge pipe 10 is ensured to be consistent, and uniform cooling is realized.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (1)

1. A positive and negative double-path uniformly-cooled PVC pipe material extrusion device structurally comprises a motor (1), a hopper (2), a heater (3), a thread extrusion cylinder (4), a machine head (5), a cooling device (6), a traction roller (7), a discharge port (8), an electric cabinet (9) and a discharge pipe (10), wherein the motor (1) is arranged on the top end face of one end of the electric cabinet (9), the motor (1) is horizontally and mechanically connected with the thread extrusion cylinder (4), the machine head (5) is arranged at the tail end of the thread extrusion cylinder (4), the machine head (5) is movably connected with the thread extrusion cylinder (4), the other end of the machine head (5) is horizontally connected with the fixed discharge pipe (10) and is wrapped by the cooling device (6), the traction roller (7) is arranged on the upper surface and the lower surface of the end of the cooling device (6) far away from the machine head (5), and the end of the traction roller (7) far away from the cooling device (6) is, the screw thread extrusion cylinder (4) is fixed with the electric cabinet (9) by screw threads, and is characterized in that:
the cooling device (6) comprises a liquid inlet (61), a backflow exchange system (62), a hemispherical shell (63), a forward and reverse loop structure (64) and a square shell (65), the square shell (65) wraps the discharge pipe (10), the hemispherical shell (63) is connected to the position right above the square shell (65), the liquid inlet (61) is formed in the middle of the top end of the hemispherical shell (63), the backflow exchange system (62) is arranged on the hemispherical shell (63), the two forward and reverse loop structures (64) are arranged in the square shell (65), and the forward and reverse loop structures (64) are mechanically connected and fixed with the backflow exchange system (62);
the backflow exchange system (62) is composed of an oil return tank (621), a suction pump (622), an oil outlet tank (623), an oil return pipe (624), a bottom frame (626) and oil outlet pipes (627), the bottom frame (626) is arranged at the bottom end inside a hemispherical shell (63), the oil return tank (621) is installed right above the bottom frame (626), the cross section of the oil return tank (621) is of an inverted U-shaped structure, the topmost end of the oil return tank (621) is communicated with a liquid inlet (61), the oil outlet tank (623) is arranged in the middle of the U-shaped opening of the oil return tank (621), the oil outlet tank (623) is separated from the oil return tank (621) by a partition plate, the partition plate is vertically welded on the top end face of the bottom frame (626), the top end of the oil outlet tank (623) is mechanically connected with the two ends of the oil return tank (621) through the suction pump (622) positioned at the top of the oil outlet tank (623), and the two groups of the, each group of two oil outlet pipes (627), the tail ends of the oil outlet pipes (627) penetrate through the underframe (626) and then are communicated with the positive and reverse loop structure (64), the two tail ends of the two ends of the oil return tank (621) are communicated with two oil return pipes (624), and the oil return pipes (624) are communicated with the positive and reverse loop structure (64);
a blocking plate (625) is arranged on the outer side of the oil return pipe (624) far away from the oil outlet tank (623);
the positive and reverse loop structure (64) comprises a first annular pipe (641) and a second annular pipe (642), the first annular pipe (641) wraps the discharge pipe (10), the head end and the tail end of the first annular pipe are respectively communicated with the oil outlet pipe (627) and the oil return pipe (624), the second annular pipe (642) wraps the first annular pipe (641), and the head end and the tail end of the second annular pipe are respectively communicated with the oil outlet pipe (627) and the oil return pipe (624);
the head end of the second annular pipe (642) communicated with the oil return pipe (624) is provided with a blade-shaped perforation.
CN201910165308.4A 2019-03-05 2019-03-05 Positive and negative double-circuit evenly-cooled PVC pipe material extrusion equipment Active CN110014565B (en)

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Application Number Priority Date Filing Date Title
CN201910165308.4A CN110014565B (en) 2019-03-05 2019-03-05 Positive and negative double-circuit evenly-cooled PVC pipe material extrusion equipment

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Application Number Priority Date Filing Date Title
CN201910165308.4A CN110014565B (en) 2019-03-05 2019-03-05 Positive and negative double-circuit evenly-cooled PVC pipe material extrusion equipment

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CN110014565A CN110014565A (en) 2019-07-16
CN110014565B true CN110014565B (en) 2021-05-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628191A (en) * 1983-03-17 1986-12-09 Gaetano Piazzola Electric thermal unit
CN202648471U (en) * 2012-06-12 2013-01-02 成都蜀都纳米材料科技发展有限公司 Improved heat exchanger
CN202948815U (en) * 2012-10-26 2013-05-22 王学瑞 Tubular water-cooling cooling device of power transformer
CN207207051U (en) * 2017-08-11 2018-04-10 新昌县大市聚镇韩诚机械厂 A kind of cable extruding machine that can be sufficiently cool
CN207403155U (en) * 2017-06-15 2018-05-25 扬州丽华汽车内饰件有限公司 A kind of modified plastics cooling back installation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628191A (en) * 1983-03-17 1986-12-09 Gaetano Piazzola Electric thermal unit
CN202648471U (en) * 2012-06-12 2013-01-02 成都蜀都纳米材料科技发展有限公司 Improved heat exchanger
CN202948815U (en) * 2012-10-26 2013-05-22 王学瑞 Tubular water-cooling cooling device of power transformer
CN207403155U (en) * 2017-06-15 2018-05-25 扬州丽华汽车内饰件有限公司 A kind of modified plastics cooling back installation
CN207207051U (en) * 2017-08-11 2018-04-10 新昌县大市聚镇韩诚机械厂 A kind of cable extruding machine that can be sufficiently cool

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