CN111873369A - PVC pipe extrusion accelerating device and control method thereof - Google Patents

PVC pipe extrusion accelerating device and control method thereof Download PDF

Info

Publication number
CN111873369A
CN111873369A CN202010775422.1A CN202010775422A CN111873369A CN 111873369 A CN111873369 A CN 111873369A CN 202010775422 A CN202010775422 A CN 202010775422A CN 111873369 A CN111873369 A CN 111873369A
Authority
CN
China
Prior art keywords
pipe
pvc pipe
feeding
charging barrel
heating
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.)
Granted
Application number
CN202010775422.1A
Other languages
Chinese (zh)
Other versions
CN111873369B (en
Inventor
黄炜杰
张千
曹熊燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taizhou Jinlong Dafeng Water Heating Co ltd
Original Assignee
Taizhou Jinlong Dafeng Water Heating Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taizhou Jinlong Dafeng Water Heating Co ltd filed Critical Taizhou Jinlong Dafeng Water Heating Co ltd
Priority to CN202010775422.1A priority Critical patent/CN111873369B/en
Publication of CN111873369A publication Critical patent/CN111873369A/en
Application granted granted Critical
Publication of CN111873369B publication Critical patent/CN111873369B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal 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
    • B29C48/802—Heating
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal 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
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92085—Velocity
    • B29C2948/92104—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92209—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature

Landscapes

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

Abstract

The invention discloses a PVC pipe extrusion accelerating device and a control method thereof, aiming at providing a PVC pipe extrusion accelerating device with good forming effect, simple structure and strong practicability, the technical proposal is that a multi-stage heating device is arranged in a charging barrel, the multi-stage heating device mainly comprises a feedback circuit, a sleeve pipe and a plurality of heaters positioned in the sleeve pipe, each heater is formed by connecting a plurality of heating pipes through a connecting piece, each heating pipe comprises an inner pipe and an outer pipe, a vacuum gap structure filled with working media is arranged between the inner pipe and the outer pipe, a temperature detector is arranged between each heating pipe and the charging barrel, a multi-stage heating structure is adopted, the temperatures of the heating pipes are mutually independent, when the charging barrel is heated, the temperature of the material is ensured when the material flows, and the flowing effect of the material is improved, the invention is suitable for the technical field of PVC pipe processing equipment.

Description

PVC pipe extrusion accelerating device and control method thereof
Technical Field
The invention relates to the technical field of PVC pipe processing equipment, in particular to a PVC pipe extrusion accelerating device and a control method thereof.
Background
At present, PVC pipe extrusion device in market for carry out extrusion moulding to PVC pipe, it includes the frame, set up feed cylinder in the frame, set up twin-screw, charging means, reduction gear in the feed cylinder and be used for driving screw pivoted motor. And traditional PVC pipe extrusion device is during to the ejection of compact of material, because the temperature of heating is unanimous, but the material is when flowing, can lead to the flow velocity of material to slow because of the heat of taking away to influence finished product extrusion speed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the PVC pipe extrusion accelerating device which is good in forming effect, simple in structure and strong in practicability.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a PVC pipe extrusion accelerating device, includes the frame, sets up feed cylinder in the frame, sets up twin-screw, charging means, reduction gear in the feed cylinder and is used for driving screw pivoted motor, be equipped with multistage formula heating device in the feed cylinder, this multistage formula heating device mainly comprises feedback circuit, sleeve pipe and a plurality of heaters that are arranged in this sleeve pipe, and the heater is formed by connecting through being equipped with the connecting piece a plurality of heating pipe, the heating pipe comprises inner tube and outer tube, for annotating the vacuum clearance structure that has the working medium between inner tube and the outer tube, all is furnished with thermodetector between each heating pipe and the feed cylinder.
The invention is further configured to: the feeding mechanism comprises a feeding cavity, one side of the feeding cavity is connected with the feeding hopper, the other side of the feeding cavity is connected with the charging barrel, the feeding cavity is of a hollow structure, and a pair of feeding rollers capable of rotating oppositely are mounted in the feeding cavity.
The invention is further configured to: the connecting piece comprises a fixing plate arranged at the connecting end of two adjacent heating pipes, a convex threaded joint and a cushion block are arranged on the fixing plate, and the cushion block is arranged below the threaded joint.
The invention is further configured to: two connect through the connecting plate between the fixed plate, correspond the screwed joint's of two fixed plates position department on the connecting plate and be equipped with the perforating hole, screwed joint stretch into correspond the perforating hole that sets up and with perforating hole rotatable coupling, the bolt is twisted soon in the screwed joint to with screwed joint threaded connection, be equipped with the packing ring between the head of bolt and the terminal surface of connecting plate, the bottom terminal surface of connecting plate and the up end butt of cushion.
The invention is further configured to: two the packing ring includes flat pad and lock washer, and the end that two adjacent heating pipes meet includes horizontal segment and the vertical section that links up each other integratively, and the fixed plate laminating is on the vertical section, and the cushion supports on the horizontal segment.
The invention is further configured to: one output end of the temperature detector is electrically connected with the heater through the adjustable transformer by a cable, and the other output end of the temperature detector is electrically connected with the thermocouple contacted with the heater by the cable, thereby forming a feedback circuit.
The invention is further configured to: the multi-section heating device also comprises a flow detector arranged at the discharge end of the charging barrel and used for detecting whether the materials in the screw pump reach a full pipe state;
the discharge valve is arranged at the discharge pipe of the charging barrel and used for reducing the opening of the valve and reducing the waste of materials in the adjusting stage under the condition that the flow detection switch detects that the materials in the charging barrel are not in a full pipe state;
and the motor controller is used for increasing the output power of the motor and increasing the material output after the materials in the material cylinder reach a full pipe state, and forming the PVC pipe.
By adopting the technical scheme, the beneficial effects are that 1, a multi-section heating device is arranged in the charging barrel, the multi-section heating device mainly comprises a feedback circuit, a sleeve and a plurality of heaters positioned in the sleeve, each heater is formed by connecting a plurality of heating pipes through a connecting piece, each heating pipe comprises an inner pipe and an outer pipe, a vacuum gap structure filled with working media is arranged between the inner pipe and the outer pipe, a temperature detector is arranged between each heating pipe and the charging barrel, the multi-section heating structure is adopted, the temperatures of the heating pipes are mutually independent, when the charging barrel is heated, the temperature of the material is ensured to be still ensured when the material flows, the flowing effect of the material is improved, and the extruding speed is ensured;
2. the feeding mechanism comprises a feeding cavity with one side connected with the feeding hopper and the other side connected with the charging barrel and a hollow structure, and a pair of feeding materials capable of oppositely rotating are arranged in the feeding cavity;
3. the connecting piece is arranged to comprise fixing plates arranged at the connecting end of two adjacent heating pipes, convex threaded joints and cushion blocks are arranged on the fixing plates, the cushion blocks are arranged below the threaded joints, the fixing plates are connected through a connecting plate, through holes are formed in the positions, corresponding to the threaded joints of the two fixing plates, on the connecting plate, the threaded joints extend into the through holes correspondingly and are rotatably connected with the through holes, bolts are screwed into the threaded joints and are in threaded connection with the threaded joints, gaskets are arranged between the heads of the bolts and the end faces of the connecting plate, and the bottom end faces of the connecting plate are abutted to the upper end faces of the cushion blocks, so that the stability between the heating pipes at all sections is improved, the connecting piece is strong;
4. the multi-section heating device is arranged to further comprise a flow detector arranged at the discharge end of the charging barrel, and the flow detector is used for detecting whether the material in the charging barrel reaches a full pipe state, determining whether the material is full pipe, processing discontinuity of the material and avoiding processing flaws, such as uneven processing and the like; therefore, the discharge valve arranged on the discharge pipe of the charging barrel is used for reducing the opening of the valve and reducing the waste of materials in the adjusting stage under the condition that the flow detection switch detects that the materials in the charging barrel are not in a full pipe state; and the motor controller is used for increasing the output power of the motor and increasing the output of the material after the material in the material cylinder reaches a full pipe state, so that the material can be filled with the full material after the PVC pipe is formed, and finished defects can be avoided when the PVC pipe is processed.
A control method applicable to the PVC pipe extrusion accelerating apparatus of claim 1, comprising the steps of, S1) feeding the hopper, feeding the charging barrel through the feeding roller, and feeding by the motor driving the twin screw;
s2) detecting the flow of the material end by the flow detector, controlling the discharging speed by the discharging valve, reducing the waste of the material in the adjusting stage until the flow of the discharging end detected by the flow detector reaches a preset value, and ensuring that the material barrel is in a full pipe state;
s3) controlling the temperature of the heater by the temperature detector, and performing independent temperature control on the feeding section, the conveying section and the output section, wherein the temperature difference among the sections is 10-20 ℃;
s4) detecting the PVC forming quality at regular time, controlling the output power of the motor by the motor controller, and accelerating the PVC pipe forming output.
Through adopting above-mentioned technical scheme, beneficial effect, through the filling volume of control material, then can be adding man-hour, guarantee the circulation continuity of finished product, ensure the incessant output of material, improve the yield, then the output of rethread increase motor increases the shaping speed of PVC pipe.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of a PVC pipe extrusion accelerating apparatus and a control method thereof according to the present invention.
Fig. 2 is a cross-sectional structural view of a charging barrel according to an embodiment of the PVC pipe extrusion accelerating apparatus and the control method thereof of the present invention.
FIG. 3 is a diagram illustrating a connector structure according to an embodiment of the PVC pipe extrusion accelerating apparatus and the control method thereof.
Reference numeral, 1, a frame; 2. a charging barrel; 20. a feed hopper; 21. a feeding chamber; 22. a feed roller; 3. a screw; 4. a motor; 50. a sleeve; 51. a heater; 52. heating a tube; 520. an inner tube; 521. an outer tube; 53. a connecting member; 530. a fixing plate; 531. a connecting plate; 6. a temperature controller.
Detailed Description
Embodiments of a PVC pipe extrusion accelerating apparatus and a control method thereof according to the present invention will be further described with reference to fig. 1 to 3.
For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
A PVC pipe extrusion accelerating device comprises a frame 1, a charging barrel 2 arranged on the frame 1, a double screw 3 arranged in the charging barrel 2, a feeder, a reducer and a motor 4 for driving the screw to rotate, wherein a multi-section heating device is arranged in the charging barrel, the multi-section heating device mainly comprises a feedback circuit, a sleeve 50 and a plurality of heaters 51 positioned in the sleeve 50, the heaters 51 are formed by connecting a plurality of heating pipes 52 through connecting pieces 53, the heating pipe 52 comprises an inner pipe 520 and an outer pipe 521, a vacuum gap structure filled with working media is arranged between the inner pipe 520 and the outer pipe 521, a temperature detector is arranged between each heating pipe 52 and the charging barrel 2, the multi-section heating device is arranged in the charging barrel 2 and mainly comprises the feedback circuit, the sleeve 50 and the heaters 51 positioned in the sleeve 50, the heaters 51 are formed by connecting the plurality of heating pipes 51 through the connecting pieces 53, heating pipe 52 comprises inner tube 520 and outer tube 521, for annotating the vacuum clearance structure that has the working medium between inner tube 520 and the outer tube 521, all be furnished with thermodetector between each heating pipe 52 and the feed cylinder 2, adopt multistage formula heating structure to the temperature mutually independent of each heating pipe 52, through above-mentioned structure setting, when making to heat feed cylinder 2, ensure when the material flows, still guarantee the temperature of material, improve the mobile effect of material, and guarantee the speed of extruding.
The feeding mechanism comprises a feeding hopper 20, a feeding cavity 21 with a hollow structure and connected with the feeding hopper 20 at one side and the charging barrel 2 at the other side, a pair of feeding rollers 22 capable of oppositely rotating are arranged in the feeding cavity 21, the feeding mechanism is arranged between the feeding hopper 20 and the charging barrel 2 and comprises a feeding cavity 21 with a hollow structure and connected with the charging barrel 2 at one side and the feeding hopper 20 at the other side, and a pair of feeding rollers 22 capable of oppositely rotating are arranged in the feeding cavity 21.
The invention is further arranged that the connecting piece 53 comprises a fixing plate 530 arranged at the joint end of two adjacent heating pipes 52, the fixing plate 530 is provided with a convex screwed joint and a cushion block, the cushion block is arranged below the screwed joint, the two fixing plates 530 are connected through a connecting plate 531, the connecting plate 531 is provided with a through hole corresponding to the screwed joint of the two fixing plates 530, the screwed joint extends into the through hole and is rotatably connected with the through hole, a bolt is screwed into the screwed joint and is in screwed connection with the screwed joint, a gasket is arranged between the head of the bolt and the end surface of the connecting plate, the bottom end surface of the connecting plate is abutted against the upper end surface of the cushion block, the connecting piece 53 is arranged to comprise a fixing plate 530 arranged at the joint end of two adjacent heating pipes 52, the fixing plate 530 is provided with a convex screwed joint and a cushion block and is arranged below the screwed joint, the setting of cushion structure, avoid connecting plate 531 to take place not hard up phenomenon when connecting two fixed plates 530, further be equipped with the packing ring between the head of bolt and the terminal surface of connecting plate 531, the bottom terminal surface of connecting plate 531 and the up end butt of cushion, the packing ring includes flat pad and locking washer, the end that two adjacent heating pipes 52 meet is including linking up horizontal segment and vertical section as an organic whole each other, the fixed plate laminating is on the vertical section, the cushion supports on the horizontal segment, through setting up horizontal segment and the vertical section at end part, then the connection wholeness between two adjacent heating pipes 52 has been improved, and stability is strong, and is simple structure.
The invention is further set that the two washers comprise a flat washer and a locking washer, the end heads connected with the two adjacent heating pipes comprise a horizontal section and a vertical section which are mutually connected into a whole, the fixing plate is attached to the vertical section, the cushion blocks are supported on the horizontal section, and the double washers are arranged, so that the connection stability is increased, the connection stability among the heating pipes is increased, the practicability is high, and the structure is simple.
The invention is further set up that one output end of the temperature detector is electrically connected with the heater through the adjustable transformer by a cable, and the other output end of the temperature detector is electrically connected with the thermocouple contacted with the heater by the cable, thereby forming a feedback circuit, ensuring good control effect on temperature, having strong practicability and simple structure, and in the embodiment of the invention, each temperature detector is connected with the temperature controller 6.
The invention is further configured to: the multi-section heating device also comprises a flow detector arranged at the discharge end of the charging barrel and used for detecting whether the materials in the screw pump reach a full pipe state;
the discharge valve is arranged at the discharge pipe of the charging barrel and used for reducing the opening of the valve and reducing the waste of materials in the adjusting stage under the condition that the flow detection switch detects that the materials in the charging barrel are not in a full pipe state;
the motor controller is used for increasing the output power of the motor and increasing the material output and forming the PVC pipe after the material in the charging barrel reaches a full pipe state, and the multi-section heating device is also provided with a flow detector arranged at the discharging end of the charging barrel and used for detecting whether the material in the charging barrel reaches the full pipe state or not, and for determining whether the material is full pipe or not, the processing of the material is discontinuous and the defects in processing, such as uneven processing and the like, are avoided; therefore, the discharge valve arranged on the discharge pipe of the charging barrel is used for reducing the opening of the valve and reducing the waste of materials in the adjusting stage under the condition that the flow detection switch detects that the materials in the charging barrel are not in a full pipe state; and the motor controller is used for increasing the output power of the motor and increasing the output of the material after the material in the material cylinder reaches a full pipe state, so that the material can be filled with the full material after the PVC pipe is formed, and finished defects can be avoided when the PVC pipe is processed.
S1) feeding by a feeding hopper, feeding the charging barrel by a feeding roller, and feeding by a motor-driven double screw;
s2) detecting the flow of the material end by the flow detector, controlling the discharging speed by the discharging valve, reducing the waste of the material in the adjusting stage until the flow of the discharging end detected by the flow detector reaches a preset value, and ensuring that the material barrel is in a full pipe state;
s3) controlling the temperature of the heater by a temperature controller 6, and performing independent temperature control on the feeding section, the conveying section and the output section, wherein the temperature difference between the sections is 10-20 ℃;
s4) detecting the PVC forming quality at regular time, controlling the output power of the motor by the motor controller, and accelerating the PVC pipe forming output.
Through adopting above-mentioned technical scheme, beneficial effect, through the filling volume of control material, then can be adding man-hour, guarantee the circulation continuity of finished product, ensure the incessant output of material, improve the yield, then the output of rethread increase motor increases the shaping speed of PVC pipe.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art should be able to make general changes and substitutions within the technical scope of the present invention.

Claims (8)

1. The utility model provides a PVC pipe extrusion accelerating device, includes frame (1), set up feed cylinder (2) in frame (1), set up twin-screw (3) in feed cylinder (2), charging means, reduction gear and be used for driving screw (3) pivoted motor (4), a serial communication port, be equipped with multistage formula heating device in feed cylinder (2), this multistage formula heating device mainly comprises feedback circuit, sleeve pipe (50) and a plurality of heater (51) that are arranged in this sleeve pipe (50), and heater (51) are formed by connecting through being equipped with connecting piece (53) a plurality of heating pipe (52), heating pipe (52) comprise inner tube (520) and outer tube (521), for annotating the clearance structure that has the working medium between inner tube (520) and outer tube (521), all be furnished with thermodetector between each heating pipe (52) and feed cylinder (2).
2. The PVC pipe extrusion accelerating device of claim 1, wherein a feed hopper (20) is arranged on the barrel (2), a feeding mechanism is arranged between the feed hopper (20) and the barrel (2), the feeding mechanism comprises a feeding cavity (21) which is connected with the feed hopper (20) on one side and the barrel (2) on the other side and has a hollow structure, and a pair of feeding rollers (22) which can rotate oppositely are arranged in the feeding cavity (21).
3. The PVC pipe extrusion accelerating device of claim 1, wherein the connecting member (53) comprises a fixing plate (530) disposed at the joint end of two adjacent heating pipes (52), the fixing plate (530) is provided with a convex threaded joint and a cushion block, and the cushion block is disposed below the threaded joint.
4. The PVC pipe extrusion accelerating device of claim 3, wherein the two fixing plates (530) are connected through a connecting plate (531), a through hole is formed in the connecting plate (531) at a position corresponding to the threaded joint of the two fixing plates (530), the threaded joint extends into the correspondingly formed through hole and is rotatably connected with the through hole, a bolt is screwed into the threaded joint and is in threaded connection with the threaded joint, a gasket is arranged between the head of the bolt and the end surface of the connecting plate (531), and the bottom end surface of the connecting plate (531) is abutted against the upper end surface of the cushion block.
5. The PVC pipe extrusion accelerating device of claim 4, wherein two washers comprise a flat washer and a locking washer, the end of each heating pipe (52) is connected with a horizontal section and a vertical section, the fixing plate (530) is attached to the vertical section, and the cushion block is supported on the horizontal section.
6. The PVC pipe extrusion accelerating device of claim 4, wherein the temperature detector is electrically connected to the heater (51) at one output end thereof by a cable through a variable transformer, and is electrically connected to the thermocouple in contact with the heater (51) at the other output end thereof by a cable, thereby forming a feedback circuit.
7. The PVC pipe extrusion accelerating device of claim 1, wherein the multi-stage heating device further comprises a flow detector disposed at the discharge end of the charging barrel (2) for detecting whether the material in the charging barrel (2) reaches a full pipe state;
the discharge valve is arranged at the discharge pipe of the charging barrel (2) and used for reducing the opening of the valve and reducing the waste of materials in the adjusting stage under the condition that the flow detection switch detects that the materials in the charging barrel (2) do not reach a full pipe state;
and the motor controller is used for increasing the output power of the motor (4) and increasing the material output after the materials in the material barrel (2) reach a full pipe state, so that a PVC pipe is formed.
8. A control method for the PVC pipe extrusion accelerating apparatus according to claim 1, comprising the steps of, S1, feeding the feed hopper (20), feeding the charging barrel (2) by the feed roller (22), feeding by the motor (4) driving the twin screw (3);
s2) the flow detector detects the flow of the material end, and controls the discharging speed through the discharging valve, reduces the waste of the material in the adjusting stage until the flow detector detects that the flow of the discharging end reaches the preset value, and ensures that the interior of the charging barrel (2) is in a full pipe state;
s3) controlling the temperature of the heater (51) by a temperature controller (6), and performing independent temperature control on the feeding section, the conveying section and the output section, wherein the temperature difference between the sections is 10-20 ℃;
s4) detecting the PVC forming quality at regular time, controlling the output power of the motor (4) by the motor (4) controller, and accelerating the PVC pipe forming output.
CN202010775422.1A 2020-08-05 2020-08-05 PVC pipe extrusion accelerating device and control method thereof Active CN111873369B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010775422.1A CN111873369B (en) 2020-08-05 2020-08-05 PVC pipe extrusion accelerating device and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010775422.1A CN111873369B (en) 2020-08-05 2020-08-05 PVC pipe extrusion accelerating device and control method thereof

Publications (2)

Publication Number Publication Date
CN111873369A true CN111873369A (en) 2020-11-03
CN111873369B CN111873369B (en) 2022-05-10

Family

ID=73210558

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010775422.1A Active CN111873369B (en) 2020-08-05 2020-08-05 PVC pipe extrusion accelerating device and control method thereof

Country Status (1)

Country Link
CN (1) CN111873369B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114290788A (en) * 2022-01-13 2022-04-08 浙江华基环保科技有限公司 Production process of PTFE aramid composite high-temperature-resistant acupuncture filter bag

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022440A (en) * 1974-02-21 1977-05-10 Ikegai Iron Works, Ltd. Method for producing plastic compound and an apparatus therefor
CN103481610A (en) * 2013-09-29 2014-01-01 佛山华韩卫生材料有限公司 Low-gram-weight and high-performance PE (Poly Ethylene) embossing film and manufacturing technology thereof
CN103770314A (en) * 2012-10-22 2014-05-07 李家波 Extruder having sectional heating function
CN105972339A (en) * 2016-07-11 2016-09-28 江苏爱能森科技有限公司 Preheating and solidification-preventing conveying pipeline structure
CN107127946A (en) * 2016-02-27 2017-09-05 皇家乐宏建筑系统（天津）有限公司 A kind of drawing-in device of conical double screw extruder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022440A (en) * 1974-02-21 1977-05-10 Ikegai Iron Works, Ltd. Method for producing plastic compound and an apparatus therefor
CN103770314A (en) * 2012-10-22 2014-05-07 李家波 Extruder having sectional heating function
CN103481610A (en) * 2013-09-29 2014-01-01 佛山华韩卫生材料有限公司 Low-gram-weight and high-performance PE (Poly Ethylene) embossing film and manufacturing technology thereof
CN107127946A (en) * 2016-02-27 2017-09-05 皇家乐宏建筑系统（天津）有限公司 A kind of drawing-in device of conical double screw extruder
CN105972339A (en) * 2016-07-11 2016-09-28 江苏爱能森科技有限公司 Preheating and solidification-preventing conveying pipeline structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114290788A (en) * 2022-01-13 2022-04-08 浙江华基环保科技有限公司 Production process of PTFE aramid composite high-temperature-resistant acupuncture filter bag

Also Published As

Publication number Publication date
CN111873369B (en) 2022-05-10

Similar Documents

Publication Publication Date Title
CN111873369B (en) PVC pipe extrusion accelerating device and control method thereof
CN110920027B (en) Polymer dynamic fluidity detection vibration device and detection method
CN103707528A (en) High-permeability membrane production line and high-permeability membrane production process
CN100448644C (en) One-step injection forming and valcanizing equipment and method for screw pump (screw drilling tool) stator rubber bush
CN114789568B (en) Device for producing polytetrafluoroethylene protective film
CN115157607A (en) Pipe extruder for buried high-voltage power cable
CN212242075U (en) Sectional type rapid heating extruder capable of adjusting heating
CN211868573U (en) High-torque double-screw extruder
CN205326238U (en) Tapered double screw extruder that large -scale high efficiency was extruded
CN210940372U (en) Novel bipyramid pan feeding granulator
CN2910533Y (en) One-step injection moulding vulcanizer for rubber bushing of stator of screw pump
CN204431693U (en) Fixed star extruder
CN220280433U (en) Full-automatic slag discharging die head
CN105835335A (en) Star extruder
CN215750611U (en) Uniform pressure plasticizing device for pipeline
CN211441056U (en) PPS graphite pipe production facility
CN104647727A (en) Plastic extruder
CN219564074U (en) Melt pipe temperature control device for melt extruder
CN211194863U (en) Energy-saving heat insulating strip production equipment
CN205871132U (en) Short screw extruder of opposition spiral
CN214082437U (en) Polytetrafluoroethylene pipe pushes away press
CN210552891U (en) Extruder for plastic processing
CN204801053U (en) A extrude structure for three -dimensional inkjet printer's double jet unites two into one
CN220031121U (en) Glue spreading extrusion device
CN210436579U (en) Extruder convenient to change screw rod

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant