CN209947544U - Cable repairing device - Google Patents
Cable repairing device Download PDFInfo
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- CN209947544U CN209947544U CN201920213013.5U CN201920213013U CN209947544U CN 209947544 U CN209947544 U CN 209947544U CN 201920213013 U CN201920213013 U CN 201920213013U CN 209947544 U CN209947544 U CN 209947544U
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Abstract
The utility model discloses a cable prosthetic devices, this prosthetic devices system by: the repaired cable, the material injection system and the mould pressing system. Wherein annotate the material system and constitute by ejector beam, storage vat, notes material heating block, notes material temperature detection hole, notes material heating block power terminal. The molding system consists of a molding heating block, a molding temperature detection hole, a power terminal of the molding heating block, a molding die, an overflow runner, a material injection hole and a positioning groove of the molding die. There is an notes material hole moulding-die utensil top, and the one end in notes material hole is connected with the storage cylinder, and the other end in notes material hole leads to moulding-die utensil inner chamber, has on storage vat and the heating piece to be connected the heating coil that can the even heating. An overflow groove is arranged below the pressing die and used for discharging air in the repaired insulation cavity and observing whether the repaired insulation cavity is filled with the insulation materials or not. The utility model has the characteristics of the outward appearance is round and neat after the restoration, convenient operation, and mechanical electrical properties is excellent after the restoration.
Description
Technical Field
The utility model relates to a damaged restoration field in the wire and cable production, especially small dimension electric wire is insulating, and it is good to have a restoration apparent quality, and electrical insulation can be high, advantages such as easy operation.
Background
In the production process of the cable, insulation or sheath breakage often occurs due to equipment reasons, human reasons, material reasons and the like, and the cable is usually repaired by wrapping a polytetrafluoroethylene film and heating the film by a heat gun. The method has the problems that the heating of the heat drying gun is not uniform, the pressure between the insulating strips is not uniform and the like, so that the surface is not flat after insulation repair, the original insulation combination is poor, the electrical and mechanical properties cannot be guaranteed, and the quality of the wire and the cable is seriously influenced.
Disclosure of Invention
The shortcoming to traditional restoration method in the past, the utility model provides a cable prosthetic devices and restoration method, this repair system simple structure, convenient operation, the outward appearance is round and tidy after the restoration, characteristics such as electromechanical properties are excellent. According to the method, through the uniformly heated storage barrel and the die mould, the repaired material can be uniformly plasticized and well combined with the damaged cable, the repaired cable is round and neat in appearance and high in electrical and mechanical properties, and the phenomenon of damage is not easy to occur again.
The technical scheme of the utility model is that: the cable repairing device comprises a repaired cable, a material injection system and a molding system.
The repaired cable is composed of a conductor and insulation, wherein the insulation is electrically or mechanically damaged and needs to be repaired and restored. The insulation repairing part needs to be subjected to pencil stub treatment, and the taper of the pencil stub is controlled to be not more than 30 degrees so as to improve the adhesion between the repaired insulation and the repairing material.
The material injection system mainly provides melted and plasticized insulating materials for repairing the insulating part and sequentially comprises a material pushing rod, a material storage barrel, a heating block, a temperature detection hole and a heating block power supply wiring terminal from top to bottom; the heating block, the temperature detection hole and the heating block power supply wiring terminal form a structure which provides heat and controls the temperature for melting and plasticizing the insulating plastic particles of the injection system, thereby achieving the purpose of constant temperature control; the external electric control instrument compares the preset temperature control value with the actual temperature measured by the thermocouple arranged in the temperature detection hole, and when the actual temperature is lower than the set temperature, the instrument gives heating current to provide electric energy for the heating block through the power supply wiring terminal of the heating block for heating, so that the aim of controlling the temperature and the constant temperature is achieved.
The material pushing rod and the material storage barrel form a piston system, the insulating material which is heated, melted and plasticized in the material storage barrel is pushed into a pressing die through an external lever, hydraulic pressure, a turbine and other assistance modes, and finally the insulating material reaches the position of a repaired insulating cavity to achieve the repairing effect.
The outer diameter of the pushing rod is matched with the inner diameter of the storage barrel in a clearance fit mode, the clearance is controlled to be 0.05-0.15 mm, the pushing rod is guaranteed to move freely in the storage barrel, and meanwhile plastic solution in the storage barrel is prevented from flowing backwards.
The mould pressing system consists of eight parts, namely a heating block, a temperature detection hole, a heating block power terminal, a mould pressing mould, an overflow runner, a material injection hole, a mould pressing mould positioning groove and a half mould pressing mould joint line.
The heating block, the temperature detection hole and the heating block power terminal form a whole to provide heat and control temperature for melting and plasticizing of insulating plastic particles of a molding system, so that the purpose of constant temperature control is achieved; the external electric control instrument compares the preset temperature control value with the actual temperature measured by the thermocouple arranged in the temperature detection hole, and when the actual temperature is lower than the set temperature, the instrument gives heating current to provide electric energy for the heating block through the power supply wiring terminal of the heating block to heat so as to achieve the purpose of controlling the temperature and the constant temperature.
The compression mold is arranged in the heating block and is connected with the storage barrel, and the molten insulation material in the storage barrel can flow into the compression mold; the repaired cable is arranged in the pressing die, and the repaired insulation cavity is arranged in the middle of the pressing die; the length of the pressing mould is overlapped with the intact insulation part of the repaired insulation by not less than 10mm, and the heating treatment is mainly used for improving the central position of the repaired insulated conductor in the pressing mould and the heat treatment of the intact insulation so as to improve the repairing quality; the inner diameter of the die is 0.5mm-1mm larger than the outer diameter of the repaired cable, and the thickness of the repaired insulation is mainly considered to be cooled and shrunk, so that the thickness of the cold insulation is ensured; the size of the die is not larger than the insulation size of the repaired cable by more than 1mm, so that the phenomenon that the insulation material is easy to overflow in a gap in the injection process, the repaired insulation cavity cannot be well filled due to insufficient pressure, and the repair quality is influenced is prevented.
The pressing die is of a half structure so as to meet the repair of a damaged position in the middle of the long-length insulation; the half mould is divided into two halves, and a repaired cable can be placed into the pressing mould at the position needing to be repaired in the middle of the cable; in order to improve the concentricity of the half die-pressing dies during combination, positioning grooves are arranged on the die-pressing dies.
The pressing die is provided with an overflow runner which is positioned at 180 degrees with the material injection hole of the pressing die, so that the overflow of air in the repaired insulating cavity is realized when the insulating molten material flows into the repaired insulating cavity; meanwhile, when the insulation molten material flows out of the pressing die mould through the overflow runner through external observation, the repaired insulation cavity is filled with the molten insulation material; the overflow runner can be semicircular or rectangular, and the cross-sectional area of the runner is controlled to be 0.5mm-1mm2And on the premise of ensuring that the molten insulating material can flow in the flow channel, the molten insulating material in the repaired insulating cavity has certain pressure and is tightly combined with the repaired insulation, so that the repairing quality is ensured.
Drawings
In order that the present invention may be more clearly understood, the following detailed description of the present invention is provided in terms of specific examples taken in conjunction with the accompanying drawings, in which: fig. 1 is a schematic structural view of the present invention; FIG. 2 is a left side view of the 3-die system of FIG. 1; reference numerals in the drawings indicate: a repaired cable (1), a conductor (11), an insulator (12) and a repaired insulation cavity (13); the device comprises an injection system (2), a material pushing rod (21), a material storage barrel (22), an injection heating block (23), an injection temperature detection hole (24) and an injection heating block power supply wiring terminal (25); the device comprises a mould pressing system (3), a mould pressing heating block (31), a mould pressing temperature monitoring hole (32), a power supply terminal (33) of the mould pressing heating block, a mould pressing mould (34), an overflow flow channel (35), a material injection hole (36), a mould positioning groove (37) and a half mould joint line (38).
Detailed Description
Referring to fig. 1 and 2, the cable repair device system comprises a repaired cable (1), a material injection system (2) and a molding system (3).
The repaired cable (1) consists of a conductor (11), an insulating piece (12) and a repaired insulating cavity (13); the repaired part of the insulating piece (12) needs to be treated by pencil stub, and the taper of the pencil stub is controlled to be not more than 30 degrees so as to improve the adhesion between the repaired insulation and the repair material.
The material injection system (2) sequentially comprises a material pushing rod (21), a material storage barrel (22), a material injection heating block (23), a material injection temperature detection hole (24) and a material injection heating block power supply wiring terminal (25) from top to bottom; the constant temperature control system consists of three parts, namely an injection heating block (23), an injection temperature detection hole (24) and an injection heating block power supply wiring terminal (25); the external electrical control instrument compares a preset temperature control value with an actual temperature measured by a thermocouple arranged in the material injection temperature detection hole (24), and when the actual temperature is lower than the set temperature, the instrument gives heating current to provide electric energy for the material injection heating block (23) to heat through the material injection heating block power terminal (25) so as to achieve the purpose of temperature constant temperature control.
The material injection temperature detection holes (24) of the material injection system (2) are uniformly distributed around the material injection heating block (23) according to 2 rows in the longitudinal direction and 90 degrees in the radial direction, and the temperature inside the material injection system (2) can be accurately measured through a thermocouple arranged in the material injection temperature detection holes (24), so that the temperature can be accurately controlled at constant temperature.
The outer diameter of the material pushing rod (21) is matched with the inner diameter of the material storage barrel (22) in a clearance fit mode, and the clearance is controlled to be 0.05-0.15 mm.
The mould pressing system (3) consists of eight parts, namely a mould pressing heating block (31), a mould pressing temperature detection hole (32), a power supply terminal (33) of the mould pressing heating block, a mould pressing mould (34), an overflow runner (35), a material injection hole (36), a mould pressing positioning groove (37) and a half mould pressing mould joint line (38); the die mould (34) is of a half structure.
The three parts of the mould pressing heating block (31), the mould pressing temperature detection hole (32) and the power supply wiring terminal (33) form a constant temperature control part for the mould pressing system; the external electrical control instrument compares a preset temperature control value with an actual temperature measured by a thermocouple arranged in the die pressing temperature detection hole (32), and when the measured temperature is lower than the set temperature, the instrument gives heating current to provide electric energy for the die pressing heating block (31) to heat through a power supply wiring terminal (33) of the die pressing heating block, so that the purpose of controlling the constant temperature of the temperature is achieved.
The molding temperature detection holes (32) of the molding system (3) are uniformly distributed around the molding heating block (31) according to 4 rows in the longitudinal direction and 90 degrees in the radial direction, and the temperature in the molding system (3) can be accurately measured by a thermocouple arranged in the molding temperature detection holes (32), so that the temperature can be accurately controlled at constant temperature.
The pressing die (34) is arranged in the heating block and is connected with the storage barrel (22), the molten insulation material in the storage barrel (22) can flow into the pressing die (34), and the pressing die (34) is of a half structure.
The pressing die (34) is provided with an overflow runner (35) which is positioned at an angle of 180 degrees with the material injection hole (36) of the pressing die; the overflow flow passage (35) can be semicircular or rectangular, and the cross section area of the overflow flow passage (35) is controlled to be 0.5mm2～1mm2In the meantime.
The repairing operation mode is as follows: placing the repaired cable (1) in a pressing mould (22), and placing the repaired insulation cavity (13) in the middle position of a pressing mould (34); the length of the compression mold (34) is overlapped with the intact insulation part of the repaired insulation piece (12) by not less than 10 mm; the inner diameter of the die mould (34) is 0.5mm-1mm larger than the outer diameter of the repaired cable (1); the material pushing rod (21) and the material storage barrel (22) form a piston system, and the insulation material heated, melted and plasticized in the material storage barrel is pushed into a pressing die (34) through an external force auxiliary system such as an external lever, hydraulic pressure, a turbine and the like, and finally reaches the position of a repaired insulation cavity (13); continuously pressurizing the material pushing rod (21), keeping the temperature control of the material injection system (2) and the mould pressing system (3), and observing an overflow runner (35); and stopping pressurizing the material pushing rod (21) until the overflow runner (35) overflows with the insulating material, stopping supplying power to a molding heating block (31) of the molding system (3), cooling the molding heating block to below 50 ℃, opening a molding die (34), taking out the repaired cable (1), and performing the repairing operation of another repaired cable (1).
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it is understood that the above description is only an embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A cable repair device, characterized by: comprises a repaired cable (1), an injection system (2) and a molding system (3); the repaired cable (1) consists of a conductor (11), an insulating piece (12) and a repaired insulating cavity (13); the material injection system (2) sequentially comprises a material pushing rod (21), a material storage barrel (22), a material injection heating block (23), a material injection temperature detection hole (24) and a material injection heating block power supply wiring terminal (25) from top to bottom; the mould pressing system (3) consists of eight parts, namely a mould pressing heating block (31), a mould pressing temperature detection hole (32), a power supply terminal (33) of the mould pressing heating block, a mould pressing mould (34), an overflow runner (35), a material injection hole (36), a mould pressing positioning groove (37) and a half mould pressing mould joint line (38); the die mould (34) is of a half structure.
2. A cable repair device according to claim 1, wherein: the repaired part of the insulating piece (12) needs to be treated by pencil stub, and the taper of the pencil stub is controlled to be not more than 30 degrees.
3. A cable repair device according to claim 1, wherein: the outer diameter of the material pushing rod (21) is matched with the inner diameter of the material storage barrel (22) in a clearance fit mode, and the clearance is controlled to be 0.05-0.15 mm.
4. A cable repair device according to claim 1, wherein: the pressing die (34) is arranged in the pressing heating block (31) and is connected with the storage barrel (22); the repaired cable (1) is arranged in a pressing mould (34), and the repaired insulation cavity (13) is arranged in the middle of the pressing mould (34); the length of the compression mold (34) is not less than 10mm overlapped with the intact part of the repaired insulating piece (12); the inner diameter of the compression mold (34) is 0.5mm-1mm larger than the outer diameter of the repaired cable (1).
5. A cable repair device according to claim 1, wherein: the pressing die (34) is provided with an overflow runner (35) which is positioned at an angle of 180 degrees with the material injection hole (36) of the pressing die; the overflow flow passage (35) has two shapes of a semi-circle and a rectangle, and the cross section area of the overflow flow passage (35) is controlled to be 0.5mm2～1mm2In the meantime.
6. A cable repair device according to claim 1, wherein: the material injection heating block (23) of the material injection system (2) is provided with 2 rows of material injection temperature detection holes (24) which are distributed longitudinally and are equally distributed radially according to 90 degrees; the material injection heating block (23) of the material injection system (2) is provided with a power supply wiring terminal (25) of the material injection heating block; the mould pressing heating block (31) of the mould pressing system (3) is provided with 4 rows of mould pressing temperature detection holes (32) which are distributed longitudinally and are equally distributed radially according to 90 degrees; the die pressing heating block (31) of the die pressing system (3) is provided with a die pressing heating block power supply terminal (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213013.5U CN209947544U (en) | 2019-02-20 | 2019-02-20 | Cable repairing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213013.5U CN209947544U (en) | 2019-02-20 | 2019-02-20 | Cable repairing device |
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| Publication Number | Publication Date |
|---|---|
| CN209947544U true CN209947544U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920213013.5U Active CN209947544U (en) | 2019-02-20 | 2019-02-20 | Cable repairing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186659A (en) * | 2020-09-10 | 2021-01-05 | 重庆泰山电缆有限公司 | Portable hot-melt repair device and method for high-voltage cable outer sheath |
| CN112653035A (en) * | 2020-11-30 | 2021-04-13 | 浙江建设职业技术学院 | Wire insulation repair system |
-
2019
- 2019-02-20 CN CN201920213013.5U patent/CN209947544U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186659A (en) * | 2020-09-10 | 2021-01-05 | 重庆泰山电缆有限公司 | Portable hot-melt repair device and method for high-voltage cable outer sheath |
| CN112653035A (en) * | 2020-11-30 | 2021-04-13 | 浙江建设职业技术学院 | Wire insulation repair system |
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