CN113601813B - Extrusion device and extrusion method for rubber sleeve cable capable of preventing die sleeve from sticking - Google Patents
Extrusion device and extrusion method for rubber sleeve cable capable of preventing die sleeve from sticking Download PDFInfo
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- CN113601813B CN113601813B CN202110408454.2A CN202110408454A CN113601813B CN 113601813 B CN113601813 B CN 113601813B CN 202110408454 A CN202110408454 A CN 202110408454A CN 113601813 B CN113601813 B CN 113601813B
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- temperature
- sleeve
- heat insulation
- die
- cable
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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
- B29C48/15—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
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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
- B29C48/25—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
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
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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
- B29C48/25—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
- B29C2948/92209—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
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/92409—Die; Nozzle zone
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention provides an extrusion device and an extrusion method for rubber jacketed cable for preventing die sleeve from sticking, wherein a temperature sensor and a sleeve joint heat insulation device are arranged on a die sleeve of a machine head. The actual temperature of the material at the machine head is truly reflected by the temperature sensor, the heat-insulating device can block the temperature rise caused by high-temperature steam after being added, and the heating temperature of the die is constant; the steam pressure of the steam pipeline can be improved, the starting speed is improved, the benefit is increased, and the phenomenon that the surface of the cable is coated with the rubber is effectively solved.
Description
Technical Field
The invention relates to the technical field of pipeline preparation, in particular to an extrusion device and an extrusion method for rubber jacketed cable capable of preventing die jacket from being stuck.
Background
The cable is one of the largest matching industries in national economy, is the basis of each industry, and the product is widely applied to the fields of electric power, building, civil use, communication, ships, military industry, aviation, petrochemical industry and the like. Some cables for mobile applications often use rubber jacketed cables, and rubber jacketed cable production is a proportion of our sales. The rubber sleeve cable production equipment is mainly rubber sleeve continuous sulfur equipment, in particular to imported rubber sleeve continuous sulfur equipment, and the equipment has the characteristics of long operation line, difficult control of product quality and higher rejection rate once the product has problems. When the outer diameter of a rubber sleeve cable with a large section and a single head is used for certain import sulfur connecting equipment of our company to reach more than 45mm, the surface of the cable often has the phenomenon of old glue, which causes the phenomenon of unsightly appearance and peeling. Therefore, solving this problem is an urgent necessity for those skilled in the art.
Disclosure of Invention
The invention aims to provide an extrusion device and an extrusion method for rubber jacketed cable, which can prevent the phenomenon of die jacket sticking.
In order to achieve the above purpose, the invention provides an extrusion device of rubber jacketed cable for preventing the phenomenon of die jacket sticking, wherein a temperature sensor and a sleeve heat insulation device are arranged on a die jacket of a machine head, so that the extrusion temperature of the rubber jacketed cable is accurate.
Further, a hole is formed in the top of the heating area of the machine head, the hole reaches the bottom of the heating ring of the die sleeve, and the temperature sensor is arranged in the hole.
Further, the heat insulation device comprises a heat insulation sleeve and a heat insulation pad, wherein the heat insulation pad is wrapped on the outer ring of the die sleeve, and the heat insulation sleeve is wrapped on the outer ring of the heat insulation pad.
The invention also provides an extrusion method of the rubber sleeve cable for preventing the phenomenon of die sleeve sticking, which comprises the following steps:
step 1: according to different rubber materials, setting corresponding heating plasticizing temperature.
Step 2: penetrating the cable core into a die; and the working procedures of butt joint sealing, glue running, deviation adjustment, observing whether the appearance of the glue material meets the ideal starting requirement, sealing the upper sealing device, the lower sealing device and the like are carried out;
step 3: opening a steam valve to perform manual slow air supply until an air pressure value is needed;
step 4: setting the temperature of the die to half of the temperature of the die orifice of the aligning core;
step 5: slowly adjusting the traction speed and the screw rotating speed according to the thickness condition of the cable;
step 6: observing the temperature of the temperature sensor at any time, observing whether the temperature of the gauge head of the sensor is constant, and if the temperature is higher than 100 ℃, timely reducing the steam pressure value;
step 7: after the rubber sleeve cable is extruded for 30 meters, whether the appearance of the product has the phenomenon of old rubber or not is observed through the hanging observation window, and if the phenomenon of old rubber is not generated, the normal starting processing can be realized.
Compared with the prior art, the invention has the advantages that: the invention changes production equipment, does not change the internal structure of the machine head of the equipment, only opens a hole at the top of the heating zone of the die sleeve of the machine head, is used for placing the temperature sensor, is very convenient, hardly increases the running cost of enterprises, and can be suitable for small and medium enterprises.
Before the temperature sensor is not installed, the display temperature of the extruder operation screen die sleeve is greatly different from the actual temperature (caused by high-temperature steam pressure), so that the die sleeve is easy to be stuck, and the cable surface is aged. After the rubber material is installed, whether the temperature is within the temperature range permitted by rubber material processing can be observed, the actual temperature of the material at the machine head is truly reflected, the investment cost is hardly needed, the temperature test is more accurate, and the process investment cost is greatly reduced.
In the aspect of tooling matching: on the basis of the extrusion of the original cable production, a die sleeve heat insulation device is added, the die sleeve heat insulation device consists of a heat insulation sleeve and a heat insulation pad, the heat insulation sleeve is made of common steel materials, and the heat insulation pad is made of high-temperature materials taking fluoroplastic as a base material. The heat insulation device is arranged outside the die sleeve, so that the influence of hot steam in the vulcanization pipeline on the temperature of the machine head can be avoided. The steam pressure before being added is set to be about 7Mpa, and for the production of large-specification cable jackets, the die sleeve die sticking phenomenon is easy to occur due to the increase of the temperature of the machine head caused by the steam temperature. After the heat insulation device is added, the temperature rise caused by high-temperature steam can be blocked, and the heating temperature of the die is constant; the steam pressure of the steam pipeline can be improved, the starting speed is improved, and the benefit is increased.
In terms of the starting-up mode: after the vulcanizing pipeline is sealed, the temperature of the heating area of the die is reduced in time, and the temperature is set to be half of the previous temperature. The starting-up mode reduces the superposition of the temperature of the steam pipeline and the heating temperature of the die sleeve, and greatly reduces the die sleeve sticking phenomenon. And when the number of the machine-opening meters reaches a certain number, the machine-opening meters are observed outside the hanging observation window in time, and parameter adjustment or shutdown treatment is carried out on unexpected phenomena in time, so that unnecessary waste is reduced.
Drawings
Fig. 1 is a front view of a thermal insulation device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a thermal insulation device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described below.
The invention provides an extrusion device for rubber jacketed cable, which can prevent the sticking phenomenon of a die sleeve 3, wherein a temperature sensor and a sleeve heat insulation device are arranged on a die sleeve 3 of a machine head, so that the extrusion temperature of a die opening of the rubber jacketed cable is accurate.
In the embodiment, a hole is formed in the top of the heating area of the machine head, the hole reaches the bottom of the heating ring of the die sleeve 3, and the temperature sensor is arranged in the hole.
In this embodiment, as shown in fig. 1 and 2, the heat insulation device includes a heat insulation sleeve 1 and a heat insulation pad 2, the heat insulation pad 2 is wrapped on the outer ring of the die sleeve 3, and the heat insulation sleeve 1 is wrapped on the outer ring of the heat insulation pad 2.
In the aspect of tooling matching: on the basis of the original cable production extrusion, a die sleeve 3 heat insulation device is added, the heat insulation device consists of a heat insulation sleeve 1 and a heat insulation pad 2, the heat insulation sleeve 1 is made of common steel materials, and the heat insulation pad 2 is made of high-temperature materials taking fluoroplastic as a base material. The heat insulation device is arranged outside the die sleeve 3, so that the influence of hot steam in the vulcanization pipeline on the temperature of the machine head can be avoided. The steam pressure before being added is set to be about 7Mpa, and for the production of large-specification cable jackets, the die sleeve 3 is easy to be stuck due to the increase of the temperature of the machine head caused by the steam temperature. After the heat insulation device is added, the temperature rise caused by high-temperature steam can be blocked, and the heating temperature of the die is constant; the steam pressure of the steam pipeline can be improved, the starting speed is improved, and the benefit is increased.
In this embodiment, the insulating sleeve 1 is made of steel, and the heat insulation pad 2 is made of a high-temperature material based on fluoroplastic.
According to the invention, the heating method of the rubber material is reasonably arranged, the tooling improvement is carried out on the extrusion equipment, and excellent cable products are produced in a reasonable production operation mode, so that the surface quality of the cable can be improved, and the phenomenon of cable ageing is avoided.
The invention changes production equipment, does not change the internal structure of the machine head of the equipment, only opens a hole at the top of the heating zone of the machine head die sleeve 3 for placing a temperature sensor, is very convenient and can be adapted for small and medium enterprises.
The invention also provides an extrusion method of the rubber sleeve cable for preventing the film phenomenon of the die sleeve 3, which comprises the following steps:
step 1: according to different rubber materials, setting corresponding heating plasticizing temperature.
Step 2: penetrating the cable core into a die; and the working procedures of butt joint sealing, glue running, deviation adjustment, observing whether the appearance of the glue material meets the ideal starting requirement, sealing the upper sealing device, the lower sealing device and the like are carried out;
step 3: opening a steam valve to perform manual slow air supply until an air pressure value is needed;
step 4: setting the temperature of the die to half of the temperature of the die orifice of the aligning core;
step 5: slowly adjusting the traction speed and the screw rotating speed according to the thickness condition of the cable;
step 6: observing the temperature of the temperature sensor at any time, observing whether the temperature of the gauge head of the sensor is constant, and if the temperature is higher than 100 ℃, timely reducing the steam pressure value;
step 7: after the rubber sleeve cable is extruded for 30 meters, observing whether the appearance of the product has the phenomenon of old rubber or not through the hanging observation window, if so, normally starting the machine;
the foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the invention without departing from the scope of the technical solution of the invention, and the technical solution of the invention is not departing from the scope of the invention.
Claims (1)
1. An extrusion method of rubber jacketed cable for preventing die sleeve sticking phenomenon, using an extrusion device of rubber jacketed cable for preventing die sleeve sticking phenomenon, is characterized by comprising the following steps:
step 1: setting corresponding heating plasticizing temperature according to different rubber materials;
step 2: penetrating the cable core into a die; and the working procedures of butt joint sealing, glue running and offset adjustment of the joint are carried out, whether the appearance of the glue stock meets the ideal starting requirement or not is observed, and the upper sealing device and the lower sealing device are closed;
step 3: opening a steam valve to perform manual air supply until an air pressure value is needed;
step 4: setting the temperature of the die to half of the temperature of the die orifice of the aligning core;
step 5: adjusting the traction speed and the screw rotating speed according to the thickness condition of the cable;
step 6: observing the temperature of the temperature sensor at any time, observing whether the temperature of the gauge head of the sensor is constant, and if the temperature is higher than 100 ℃, timely reducing the steam pressure value;
step 7: after the rubber sleeve cable is extruded for 30 meters, observing whether the appearance of the product has the phenomenon of old rubber or not through the hanging observation window; the machine can be normally started up for processing without the phenomenon of old glue;
the extrusion device of the rubber sleeve cable for preventing the die sleeve from sticking is characterized in that a temperature sensor and a sleeve heat insulation device are arranged on a die sleeve of a machine head, so that the extrusion temperature of the rubber sleeve cable is accurate;
a hole is formed in the top of the heating area of the machine head, the hole reaches the bottom of the heating ring of the die sleeve, and the temperature sensor is arranged in the hole;
the heat insulation device comprises a heat insulation sleeve and a heat insulation pad, wherein the heat insulation pad is wrapped on the outer ring of the die sleeve, and the heat insulation sleeve is wrapped on the outer ring of the heat insulation pad;
the isolation sleeve is made of steel, and the heat insulation pad is made of high-temperature materials taking fluoroplastic as a base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110408454.2A CN113601813B (en) | 2021-04-16 | 2021-04-16 | Extrusion device and extrusion method for rubber sleeve cable capable of preventing die sleeve from sticking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110408454.2A CN113601813B (en) | 2021-04-16 | 2021-04-16 | Extrusion device and extrusion method for rubber sleeve cable capable of preventing die sleeve from sticking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113601813A CN113601813A (en) | 2021-11-05 |
| CN113601813B true CN113601813B (en) | 2023-06-16 |
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| CN202110408454.2A Active CN113601813B (en) | 2021-04-16 | 2021-04-16 | Extrusion device and extrusion method for rubber sleeve cable capable of preventing die sleeve from sticking |
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2021
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| CN102829999A (en) * | 2012-08-03 | 2012-12-19 | 江苏大学 | Warm type high-speed forming device for experiments |
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| CN113601813A (en) | 2021-11-05 |
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