CN114420383A - Multi-component synchronous extrusion micro-tension control adjusting mechanism for heat tracing cable - Google Patents

Multi-component synchronous extrusion micro-tension control adjusting mechanism for heat tracing cable Download PDF

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Publication number
CN114420383A
CN114420383A CN202210123209.1A CN202210123209A CN114420383A CN 114420383 A CN114420383 A CN 114420383A CN 202210123209 A CN202210123209 A CN 202210123209A CN 114420383 A CN114420383 A CN 114420383A
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CN
China
Prior art keywords
extrusion
synchronous extrusion
extrusion die
adjusting mechanism
tracing cable
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Pending
Application number
CN202210123209.1A
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Chinese (zh)
Inventor
鲁旭波
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Wuhu Xuhui Electric New Material Co ltd
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Wuhu Xuhui Electric New Material Co ltd
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Priority to CN202210123209.1A priority Critical patent/CN114420383A/en
Publication of CN114420383A publication Critical patent/CN114420383A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • 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
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/146—Controlling the extrusion apparatus dependent on the capacitance or the thickness of the insulating material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/147—Feeding of the insulating material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • 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
    • B29C2948/92523—Force; Tension
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a multi-component synchronous extrusion micro-tension control and regulation mechanism for a heat tracing cable, which relates to the technical field of heat tracing cables and comprises a material synchronous extrusion die, wherein a first metering pump, a first flow sensor and a first switch valve are sequentially arranged on an inner layer feeding pipe of the material synchronous extrusion die along a feeding direction; the wire feeding end of the material synchronous extrusion die is provided with a traction wheel I for drawing a wire, a speed sensor I for sensing the wire feeding speed is arranged at the position of the traction wheel I, and the extrusion end of the material synchronous extrusion die is provided with a traction wheel II for drawing an extruded material. The invention solves the problem of poor quality of produced products caused by insufficient or excessive tension of the drawing-in and drawing-out tension of the extrusion of each component of the heat tracing cable by arranging the multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat tracing cable.

Description

Multi-component synchronous extrusion micro-tension control adjusting mechanism for heat tracing cable
Technical Field
The invention relates to the technical field of heat tracing cables, in particular to a multi-component synchronous extrusion micro-tension control adjusting mechanism of a heat tracing cable.
Background
Heat tracing cables have been widely used as an effective pipeline insulation and freeze protection solution. The working principle is that a certain amount of heat is radiated through the heat tracing medium, and the loss of the heat tracing pipeline is supplemented through direct or indirect heat exchange, so that the normal working requirements of temperature rise, heat preservation or freeze prevention are met. The heat tracing cable extrusion production process usually comprises a plurality of extrusion dies to synchronously extrude multi-component materials, and the extruded materials are cooled and formed in a cooling water mode, so that the multi-component synchronous extrusion of the heat tracing cable can improve the extrusion production efficiency of the heat tracing cable, and greatly reduce the probability of oxidation in the extrusion process; the heat tracing cable extrusion production process in the current factory has the following problems: the synchronous extrusion micro-tension of the multiple components of the heat tracing cable needs to be continuously adjusted and controlled to avoid the situations of bending, sagging, accumulation and empty pipe of a surface coating material caused by insufficient extrusion pulling-in and pulling-out tension of the components of the heat tracing cable, and the situations of surface damage and uneven distribution caused by excessive extrusion pulling-in and pulling-out tension of the components of the heat tracing cable, so that a control and adjustment mechanism for the synchronous extrusion micro-tension of the multiple components of the heat tracing cable is urgently needed to solve the problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a multi-component synchronous extrusion micro-tension control adjusting mechanism for a heat tracing cable, which aims to solve the problems that the drawing-in and drawing-out tension of each component of the heat tracing cable is insufficient and the quality of the produced product is poor due to excessive drawing-in and drawing-out tension.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-component synchronous extrusion micro-tension control adjusting mechanism for a heat tracing cable comprises a material synchronous extrusion die, wherein a first metering pump, a first flow sensor and a first switch valve are sequentially arranged on an inner layer feeding pipeline of the material synchronous extrusion die along a feeding direction, and a second metering pump, a second flow sensor and a second switch valve are sequentially arranged on an outer layer feeding pipeline of the material synchronous extrusion die along the feeding direction;
a first traction wheel is arranged at the wire inlet end of the material synchronous extrusion die to pull the wire, a first speed sensor is arranged at the first traction wheel to sense the wire inlet rate, a second traction wheel is arranged at the extrusion end of the material synchronous extrusion die to pull the extrusion material, and a second speed sensor is arranged at the second traction wheel to sense the extrusion rate of the extrusion material;
the flow sensor I, the flow sensor II, the speed sensor I and the speed sensor II are in communication connection with a human-computer interaction monitoring control terminal, and the human-computer interaction monitoring control terminal controls the metering pump I, the metering pump II, the traction wheel I and the traction wheel II in a feedback mode through an industrial control cabinet.
Preferably, the extrusion end of the material synchronous extrusion die is further provided with a visual detection camera, and the visual detection camera is in communication connection with an industrial computer.
Preferably, the visual inspection camera is used for online inspection by an industrial computer by shooting an extrusion material image.
Preferably, the industrial computer is in communication connection with an alarm system.
Preferably, the material synchronous extrusion die consists of a cooling system, an outer layer extrusion die and an inner layer extrusion die.
Preferably, the extrusion end of the material synchronous extrusion die is also provided with a temperature sensor for online detection of the surface temperature of the extruded material.
Preferably, the temperature sensor is in communication connection with the human-computer interaction monitoring control terminal, and the human-computer interaction monitoring control terminal controls the extrusion rate of the material of the extrusion port of the material synchronous extrusion die through feedback of the industrial control cabinet.
The invention has the following beneficial effects:
1. the invention monitors the feeding flow rate of material feeding pipelines of each layer, the wire feeding rate of a material synchronous extrusion die, the extrusion rate of the material synchronous extrusion die and the surface temperature of an extruded material on line by arranging the heat tracing cable multi-component synchronous extrusion micro-tension control adjusting mechanism, meets the requirement of mutual matching, can automatically adjust through a human-computer interaction monitoring control terminal and an industrial control cabinet when data change exists in each rate, flow rate or temperature, controls mutual matching, ensures uniform drawing and pulling tension and ensures the quality of extruded products.
2. The invention detects the surface state of the extruded material on line in real time by arranging the multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat tracing cable and a visual detection camera, performs surface image comparison according to a detection system of an industrial computer, and performs alarm processing by an alarm system when an abnormal state is detected, thereby achieving the purpose of timely feeding back problems.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure: 1. synchronously extruding the material out of the die; 2. a first metering pump; 3. a first flow sensor; 4. a first switch valve; 5. a second metering pump; 6. a flow sensor II; 7. a second switch valve; 8. a first traction wheel; 9. a first speed sensor; 10. a second traction wheel; 11. a second speed sensor; 12. a human-computer interaction monitoring control terminal; 13. an industrial control cabinet; 14. a visual inspection camera; 15. an industrial computer; 16. an alarm system; 17. a temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a technical solution: a multi-component synchronous extrusion micro-tension control adjusting mechanism for a heat tracing cable comprises a material synchronous extrusion die 1, wherein a metering pump I2, a flow sensor I3 and a switch valve I4 are sequentially arranged on an inner layer feeding pipe of the material synchronous extrusion die 1 along a feeding direction, a metering pump II 5, a flow sensor II 6 and a switch valve II 7 are sequentially arranged on an outer layer feeding pipe of the material synchronous extrusion die 1 along the feeding direction, and the feeding flow rate of each layer feeding pipe is independently controlled and adjusted;
the wire feeding end of the material synchronous extrusion die 1 is provided with a first traction wheel 8 for drawing wires, two conductive cores for feeding the wires are arranged and are parallel to the wires, the wire feeding speed is consistent and is driven and controlled by the same driving device, a first speed sensor 9 for sensing the wire feeding speed is arranged at the position of the first traction wheel 8, a second traction wheel 10 for drawing an extrusion material is arranged at the extrusion end of the material synchronous extrusion die 1, the drawn extrusion material is coated and molded, a second speed sensor 11 for sensing the extrusion speed of the extrusion material is arranged at the position of the second traction wheel 10, and the wire feeding speed and the extrusion speed are matched to ensure that the coating of the extruded heat tracing cable is uniformly distributed and cooled and molded, and the surface is smooth and has no defect;
the flow sensor I3, the flow sensor II 6, the speed sensor I9 and the speed sensor II 11 are in communication connection with the human-computer interaction monitoring control terminal 12, the human-computer interaction monitoring control terminal 12 controls the metering pump I2, the metering pump II 5, the traction wheel I8 and the traction wheel II 10 in a feedback mode through the industrial control cabinet 13, the feeding flow rate of material feeding pipelines of all layers, the wire feeding rate of the material synchronous extrusion die 1 and the extrusion rate of the material synchronous extrusion die 1 are monitored on line through the sensing device to meet the requirement of mutual matching, and when data changes exist in all rates and flow rates, automatic adjustment can be conducted through the human-computer interaction monitoring control terminal 12 and the industrial control cabinet 13, and mutual matching is controlled.
As a technical optimization scheme of the invention, the extrusion end of the material synchronous extrusion die 1 is also provided with a visual detection camera 14, and the visual detection camera 14 is in communication connection with an industrial computer 15.
As a technical optimization scheme of the invention, the visual detection camera 14 is used for on-line detection by the industrial computer 15 through shooting images of the extruded material, and is used for detecting whether the surface state of the coating layer of the extruded heat tracing cable has defects or not.
As a technical optimization scheme of the invention, the industrial computer 15 is in communication connection with the alarm system 16, and when a bad state is detected, the problem is timely alarmed and fed back, and the processing is rapid.
As a technical optimization scheme of the invention, the material synchronous extrusion die 1 consists of a cooling system, an outer layer extrusion die and an inner layer extrusion die.
As a technical optimization scheme of the invention, a temperature sensor 17 is further arranged at the extrusion end of the material synchronous extrusion die 1 to detect the surface temperature of the extruded material on line, when the temperature sensor 17 detects that the surface temperature of the extruded material is too high and the extruded material is not cooled well, the cooling time is too short, the problem that the surface quality cannot be guaranteed when each cladding layer is drawn out is solved, the drawing-in and drawing-out speed needs to be reduced, the output speeds of the metering pump I2 and the metering pump II 5 are also adjusted in a matching manner, and similarly, when the surface temperature of the extruded material is too low, the cooling time is too long, the production rate is influenced, and the adjustment needs to be carried out.
As a technical optimization scheme of the invention, the temperature sensor 17 is in communication connection with the human-computer interaction monitoring control terminal 12, and the human-computer interaction monitoring control terminal 12 controls the extrusion rate of the material of the extrusion port of the material synchronous extrusion die 1 in a feedback mode through the industrial control cabinet 13.
In conclusion, the invention solves the problems of insufficient drawing-in and drawing-out tension and poor quality of produced products caused by excessive drawing-in and drawing-out tension by arranging the multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat tracing cable.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A multi-component synchronous extrusion micro-tension control adjusting mechanism for a heat tracing cable comprises a material synchronous extrusion die (1) and is characterized in that: a first metering pump (2), a first flow sensor (3) and a first switch valve (4) are sequentially arranged on an inner layer feeding pipeline of the material synchronous extrusion die (1) along the feeding direction, and a second metering pump (5), a second flow sensor (6) and a second switch valve (7) are sequentially arranged on an outer layer feeding pipeline of the material synchronous extrusion die (1) along the feeding direction;
a first traction wheel (8) is arranged at the wire inlet end of the material synchronous extrusion die (1) to pull the wire, a first speed sensor (9) is arranged at the position of the first traction wheel (8) to sense the wire inlet speed, a second traction wheel (10) is arranged at the extrusion end of the material synchronous extrusion die (1) to pull the extrusion material, and a second speed sensor (11) is arranged at the position of the second traction wheel (10) to sense the extrusion speed of the extrusion material;
the flow sensor I (3), the flow sensor II (6), the speed sensor I (9) and the speed sensor II (11) are in communication connection with the human-computer interaction monitoring control terminal (12), and the human-computer interaction monitoring control terminal (12) controls the metering pump I (2), the metering pump II (5), the traction wheel I (8) and the traction wheel II (10) in a feedback mode through the industrial control cabinet (13).
2. The multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat-tracing cable according to claim 1, characterized in that: the extrusion end of the material synchronous extrusion die (1) is further provided with a visual detection camera (14), and the visual detection camera (14) is in communication connection with an industrial computer (15).
3. The multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat-tracing cable according to claim 1, characterized in that: the visual detection camera (14) is used for on-line detection by an industrial computer (15) through shooting an extrusion material image.
4. The multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat-tracing cable according to claim 1, characterized in that: the industrial computer (15) is connected in communication with an alarm system (16).
5. The multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat-tracing cable according to claim 1, characterized in that: the material synchronous extrusion die (1) consists of a cooling system, an outer layer extrusion die and an inner layer extrusion die.
6. The multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat-tracing cable according to claim 1, characterized in that: and the extrusion end of the material synchronous extrusion die (1) is also provided with a temperature sensor (17) for detecting the surface temperature of the extruded material on line.
7. The multi-component synchronous extrusion micro-tension control adjusting mechanism of the heat-tracing cable according to claim 6, characterized in that: the temperature sensor (17) is in communication connection with the human-computer interaction monitoring control terminal (12), and the human-computer interaction monitoring control terminal (12) controls the extrusion rate of the material of the extrusion port of the material synchronous extrusion die (1) in a feedback mode through the industrial control cabinet (13).
CN202210123209.1A 2022-02-10 2022-02-10 Multi-component synchronous extrusion micro-tension control adjusting mechanism for heat tracing cable Pending CN114420383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210123209.1A CN114420383A (en) 2022-02-10 2022-02-10 Multi-component synchronous extrusion micro-tension control adjusting mechanism for heat tracing cable

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Application Number Priority Date Filing Date Title
CN202210123209.1A CN114420383A (en) 2022-02-10 2022-02-10 Multi-component synchronous extrusion micro-tension control adjusting mechanism for heat tracing cable

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0922627A (en) * 1995-07-07 1997-01-21 Fujikura Ltd Method for controlling wire speed during extrusion covering process
CN201253947Y (en) * 2008-06-18 2009-06-10 宁波方力集团有限公司 Fused mass flow regulation apparatus for extruding mould
CN102729446A (en) * 2011-04-14 2012-10-17 王东奎 Linkage production method and device for rubber hose extrusion
CN104616832A (en) * 2015-01-12 2015-05-13 安徽普瑞斯电工机械有限公司 Tension constant control system for cable traction
CN109291403A (en) * 2018-10-23 2019-02-01 苏州金纬管道科技有限公司 The double extruders out of one mould
CN209095950U (en) * 2018-08-13 2019-07-12 李佳 A kind of wire rod facility
CN111048264A (en) * 2019-11-06 2020-04-21 昆山勃盛电子有限公司 Equipment and method for producing cable
CN210669930U (en) * 2019-09-16 2020-06-02 淄博京科电气有限公司 Switched reluctance motor speed regulation system for extruder
CN213660071U (en) * 2020-12-06 2021-07-09 芜湖市恒鑫电缆有限责任公司 Synchronous control mechanism for micro-tension of each component extruded by armouring of heat tracing cable
CN213860564U (en) * 2020-12-05 2021-08-03 芜湖市恒鑫电缆有限责任公司 Multi-component armored extrusion rate control mechanism for heat tracing cable

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0922627A (en) * 1995-07-07 1997-01-21 Fujikura Ltd Method for controlling wire speed during extrusion covering process
CN201253947Y (en) * 2008-06-18 2009-06-10 宁波方力集团有限公司 Fused mass flow regulation apparatus for extruding mould
CN102729446A (en) * 2011-04-14 2012-10-17 王东奎 Linkage production method and device for rubber hose extrusion
CN104616832A (en) * 2015-01-12 2015-05-13 安徽普瑞斯电工机械有限公司 Tension constant control system for cable traction
CN209095950U (en) * 2018-08-13 2019-07-12 李佳 A kind of wire rod facility
CN109291403A (en) * 2018-10-23 2019-02-01 苏州金纬管道科技有限公司 The double extruders out of one mould
CN210669930U (en) * 2019-09-16 2020-06-02 淄博京科电气有限公司 Switched reluctance motor speed regulation system for extruder
CN111048264A (en) * 2019-11-06 2020-04-21 昆山勃盛电子有限公司 Equipment and method for producing cable
CN213860564U (en) * 2020-12-05 2021-08-03 芜湖市恒鑫电缆有限责任公司 Multi-component armored extrusion rate control mechanism for heat tracing cable
CN213660071U (en) * 2020-12-06 2021-07-09 芜湖市恒鑫电缆有限责任公司 Synchronous control mechanism for micro-tension of each component extruded by armouring of heat tracing cable

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