Cable stranding equipment for cable production

Abstract

The invention relates to the technical field of cable production quality inspection, in particular to cable stranding equipment for cable production, which comprises a turntable for driving a single-wire conductor to rotate, a stranding cylinder concentric with the turntable, and a cleaning chamber and a coating chamber positioned on the rear side of the stranding cylinder, and are respectively used for cleaning a cable and coating an insulating layer outside the cable. A low-voltage ring is arranged in a stranding cylinder, a high-voltage ring is arranged at a subsequent position, the low-voltage ring is sleeved outside a cable which is not coated with an insulating layer, the high-voltage ring is sleeved outside the cable which is coated with the insulating layer, and a galvanometer is connected between the low-voltage ring and the high-voltage ring. If the thickness of the cable insulation layer cannot reach the withstand voltage degree, or the cable insulation layer is damaged, cracked and the like. The high-voltage ring can break through the air and the insulating layer, so that the cable becomes a conductor, and the low-voltage ring and the high-voltage ring are conducted and can be detected through a galvanometer. The detection mechanism is simple and convenient, and detection is efficient and accurate.

Description

Technical Field

[0001] The invention relates to the technical field of cable production quality inspection, and in particular to a cable stranding device for cable production. Background Art

[0002] When producing cable strands, multiple single-wire conductors must first be twisted together in a certain direction and according to a certain rule to form an integral stranded core. This process not only ensures the flexibility of the cable and its stability when bent, but also improves the overall strength of the cable, making it easier to install and use. Then, the insulating material is wrapped around the conductor by extrusion to form the cable insulation layer. The thickness of the insulating material must be determined based on the voltage tolerance requirements to ensure the safe operation of electrical equipment and lines.

[0003] Single-wire conductors may contain dust, oil stains and other pollutants. When multiple single wires are twisted into one conductor and then covered with insulating materials, these pollutants may affect the connection of the cable insulation layer.

[0004] In addition, the thickness of the cable insulation layer needs to be determined according to the voltage withstand requirements during processing. The cable stranding production process also includes cabling, shielding, armoring and sheathing. Therefore, it is necessary to test the voltage withstand of the cable insulation layer during the cable stranding production process to ensure that it meets the production requirements.

[0005] At the same time, the cable insulation layer needs to ensure that there is no damage, cracking or other reasons that lead to poor cable insulation or even leakage. Therefore, it is also necessary to detect whether the cable insulation layer is intact. However, there is currently a lack of relevant testing of the cable insulation layer during the cable stranding production process. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a cable stranding equipment for cable production, so as to solve the problem in the prior art of lacking relevant detection of the cable insulation layer during the cable stranding production process.

[0007] Based on the above purpose, the present invention provides a cable stranding device for cable production, comprising a turntable for driving a single-wire conductor to rotate, wherein the single-wire conductor passes through a through hole on the outer edge of the turntable, and the cable stranding device further comprises:

[0008] A twisting drum is arranged concentrically with the turntable, the front end of the single-wire conductor is twisted into a cable in the twisting drum, and the other end of the single-wire conductor is connected to the wire arrangement roller at the rear side of the turntable;

[0009] The cleaning chamber and the covering chamber located at the rear side of the stranding drum are used to clean the cables and cover the cables with an insulating layer respectively;

[0010] A tail tube is arranged at the rear of the covering chamber, wherein a high-voltage ring is arranged in the tail tube, and a low-voltage ring is also arranged in the stranded wire barrel. The low-voltage ring is arranged outside the cable not covered with an insulating layer, and the high-voltage ring is arranged outside the cable covered with an insulating layer, and an ammeter is also connected between the low-voltage ring and the high-voltage ring.

[0011] Furthermore, a water inlet pipe is fixedly connected to the cleaning room, and a fixed cylinder is also provided in the cleaning room, in which an oil-wiping roller brush, a water spray head and a water suction port are provided, and the end of the water inlet pipe is connected to the oil-wiping roller brush, the water spray head and the absorbent cotton.

[0012] Furthermore, the cleaning room is also provided with a driving motor for driving the oil-wiping roller brush to rotate and a booster pump connected to the water spray head.

[0013] Furthermore, a drainage trough is provided in the cleaning room, the drainage and suction trough is located at the bottom of the fixed cylinder, and a water pump connected to the suction port is provided in the drainage trough.

[0014] Furthermore, a feed pipe is fixedly connected to the coating chamber for conveying the insulating layer raw material in a hot-melt state, and a hot-melt bin is also arranged in the coating chamber, and the lower end of the feed pipe is connected to the hot-melt bin.

[0015] Furthermore, a water cooling pipe is provided between the skin covering chamber and the tail pipe, the cable passes through the water cooling pipe, and the water cooling pipe is filled with cold water to cool and shape the outer insulation layer of the cable.

[0016] Furthermore, a water storage bin is provided at the bottom of the water cooling pipe, a bracket is fixedly connected to the water storage bin, the water cooling pipe is fixedly connected to the bracket, and a water pump is provided in the water storage bin, and the water pump is connected to the water cooling pipe through a pipeline.

[0017] Furthermore, the cable is twisted together by a central conductor core and a plurality of single-wire conductors, a plurality of through holes are provided on the outer edge of the turntable, and a through hole for entering and exiting the conductor core is also provided at the center of the turntable.

[0018] Furthermore, a connecting seat is provided at the bottom of the tail pipe, and a water scraper ring is also provided in the tail pipe for scraping off the water on the surface of the cable.

[0019] Furthermore, the high-pressure ring is located at the rear side of the wiper ring, and a hot air nozzle is provided between the high-pressure ring and the wiper ring, and the hot air nozzle is connected to the hot air blower in the connecting seat.

[0020] The beneficial effects of the present invention are as follows: 1. A low-voltage ring is arranged in the stranding barrel for the cable strands, and a high-voltage ring is arranged at a subsequent position. The low-voltage ring is arranged outside the cable not covered with an insulating layer, and the high-voltage ring is arranged outside the cable covered with an insulating layer, and an ammeter is connected between the low-voltage ring and the high-voltage ring. If the thickness of the cable insulation layer does not reach its withstand voltage level, or the cable insulation layer is damaged or cracked. The high-voltage ring can break through the air and the insulation layer, allowing the cable to become a conductor, so that the low-voltage ring and the high-voltage ring are conductive, and then it can be detected by the ammeter. The detection mechanism is simple and convenient, and the detection is efficient and accurate.

[0021] 2. A cleaning room is set up at the rear side of the stranding drum and in front of the covering room. An oiling roller brush, a water spray head and a water suction port are set up in the cleaning room. The oil stains and dust on the surface of the cable are scrubbed off by the oiling roller brush, and then rinsed by the water spray head and finally the moisture is removed by the water suction port, ensuring that the cable is clean before the insulation layer is coated, so that the insulation layer can better adhere to the outside of the cable.

[0022] 3. A water cooling pipe is provided between the covering chamber and the tail pipe, which can quickly cool down and shape the outer insulation layer of the cable. Cold water is continuously injected into the water cooling pipe to ensure the cooling effect. The upper end of the water cooling pipe is open to facilitate cable routing, and the cold water of the water cooling pipe can also flow down through the opening. A water storage tank is provided at the bottom of the water cooling pipe, so that the cold water can be circulated internally to save water resources.

[0023] 4. A scraper ring is set in the tail pipe to scrape off the moisture on the cable surface, and a hot air nozzle is also provided between the high-voltage ring and the scraper ring to make the cable surface dry, which not only facilitates subsequent processing operations, but also ensures that there is no moisture interference between the high-voltage ring and the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the processing principle of the present invention.

[0026] Figure 2 It is a schematic diagram of the overall structural principle of the device of the present invention.

[0027] Figure 3 It is a side view of the device of the present invention.

[0028] Figure 4 It is a schematic structural diagram of the water storage bin part in the device of the present invention.

[0029] Figure 5 Schematic diagram of the internal structure of the device of the present invention.

[0030] Figure 6 It is a schematic diagram of the internal structure of the wire twisting drum and the cleaning chamber in the device of the present invention.

[0031] Figure 7 Schematic diagram of the internal structure of the tail pipe in the device of the present invention.

[0032] The markings in the figure are:

[0033] 101. Single-wire conductor, 102. Cable, 103. Turntable, 104. Wire drum, 105. Cleaning room, 106. Covering room, 107. Water cooling pipe, 108. Water storage tank, 109. Tail pipe, 110. Water inlet pipe, 111. Feed pipe, 112. Fixed cylinder, 113. Hot melt tank, 114. Low-pressure ring, 115. Oiling roller brush, 116. Water spray head, 117. Water suction port, 118. Drain trough, 119. Water pump, 120. Bracket, 121. Connecting seat, 122. Wiper ring, 123. Hot air nozzle, 124. High-pressure ring. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] A first aspect of the present invention, as Figure 1 , Figure 2 and Figure 3As shown, when producing cable strands, it is first necessary to twist multiple single-wire conductors together in a certain direction and according to a rule to form an integral twisted wire core, and then wrap the insulating material around the conductor by extrusion to form a cable insulation layer. Therefore, the present invention designs a turntable 103 for driving the single-wire conductor 101 to rotate and a stranding drum 104 arranged concentrically with the turntable 103. The single-wire conductor 101 passes through the through hole at the outer edge of the turntable 103, and the front end of the single-wire conductor 101 is twisted into a cable 102 in the stranding drum 104. The other end of the single-wire conductor 101 is connected to the wire arrangement roller at the rear side of the turntable 103. A cleaning chamber 105 and a covering chamber 106 are also provided at the rear side of the stranding drum 104, which are used to clean the cable 102 and to cover the cable 102 with an insulating layer, respectively.

[0037] The cable 102 is formed by twisting a central wire core and a plurality of single-wire conductors 101 , so a plurality of through holes are provided on the outer edge of the turntable 103 , and a through hole for entering and exiting the wire core is also provided at the center of the turntable 103 .

[0038] In addition, a feed pipe 111 is fixedly connected to the coating chamber 106 for conveying the insulating layer raw material in a hot melt state, and a hot melt bin 113 is also provided in the coating chamber 106 , and the lower end of the feed pipe 111 is connected to the hot melt bin 113 .

[0039] Since there may be dust, oil stains and other pollutants on the single-wire conductor, these pollutants may affect the connection of the cable insulation layer when multiple single wires are twisted into one wire and then covered with insulation material.

[0040] So, if Figure 5 and Figure 6 As shown, a water inlet pipe 110 is fixedly connected to the cleaning chamber 105, and a fixed cylinder 112 is provided in the cleaning chamber 105, wherein an oil-wiping roller brush 115, a water spray head 116 and a water suction port 117 are provided in the fixed cylinder 112, and the end of the water inlet pipe 110 is connected to the oil-wiping roller brush 115, the water spray head 116 and the water-absorbing cotton 117. In addition, a driving motor for driving the oil-wiping roller brush 115 to rotate and a booster pump connected to the water spray head 116 are also provided in the cleaning chamber 105.

[0041] Preferably, a drainage trough 118 is further provided in the cleaning chamber 105 , and the drainage and suction port 117 and the drainage trough 118 are located at the bottom of the fixed cylinder 112 , and a water pump connected to the suction port 117 is also provided in the drainage trough 118 .

[0042] A cleaning chamber 105 is set at the rear side of the stranding drum 104 and the front side of the covering chamber 106, and an oiling roller brush 115, a water spray head 116 and a water suction port 117 are set in the cleaning chamber 105. The oiling roller brush 115 is used to scrub away oil stains and dust on the surface of the cable 102, and then the water is rinsed through the water spray head 116 and finally the water is removed through the water suction port 117, thereby ensuring that the cable 102 is clean before being coated with the insulating layer, so that the insulating layer can better adhere to the outside of the cable 102.

[0043] A second aspect of the present invention, as Figure 1 , Figure 5 and Figure 7 As shown, the thickness of the cable insulation layer needs to be determined according to the voltage tolerance requirements during processing. The cable stranding production process also includes cabling, shielding, armoring and sheathing. Therefore, it is necessary to test the voltage tolerance of the cable insulation layer during the cable stranding production process to ensure that it meets the production requirements. At the same time, the cable insulation layer needs to ensure that there is no damage, cracking or other reasons that lead to poor cable insulation or even leakage.

[0044] Therefore, the present invention sets a low-voltage ring 114 in the stranded wire drum 104, and sets a tail tube 109 behind the skin-covering chamber 106. The cable 102 passes through the tail tube 109, and a high-voltage ring 124 is set in the tail tube 109. The low-voltage ring 114 is sleeved outside the cable 102 not covered with an insulating layer, and the high-voltage ring 124 is sleeved outside the cable 102 covered with an insulating layer, and an ammeter is also connected between the low-voltage ring 114 and the high-voltage ring 124.

[0045] If the thickness of the insulation layer of the cable 102 does not reach its withstand voltage level, or the insulation layer of the cable 102 is damaged or cracked, the high-voltage ring 124 can break through the air and the insulation layer, making the cable 102 a conductor, so that the low-voltage ring 114 and the high-voltage ring 124 are connected, and then it can be detected by the ammeter. The detection mechanism is simple and convenient, and the detection is efficient and accurate.

[0046] In addition, a connection seat 121 is provided at the bottom of the tail pipe 109, and a water scraper ring 122 is also provided in the tail pipe 109 to scrape off the moisture on the surface of the cable 102. A high-voltage ring 124 is located at the rear side of the water scraper ring 122, and a hot air nozzle 123 is provided between the high-voltage ring 124 and the water scraper ring 122, and the hot air nozzle 123 is connected to the hot air blower in the connection seat 121.

[0047] A wiper ring 122 is provided in the tail pipe 109 to scrape off moisture on the surface of the cable 102, and a hot air nozzle 123 is provided between the high-voltage ring 124 and the wiper ring 122 to dry the surface of the cable 102, which not only facilitates subsequent processing operations but also ensures that there is no moisture interference between the high-voltage ring 124 and the cable 102.

[0048] A third aspect of the present invention is as follows Figure 1 , Figure 4 and Figure 5 As shown, since the surface insulation layer of the cable 102 just coming out of the skin-coating chamber 106 is still in a high temperature state and is easily deformed, it is necessary to cool it down urgently to ensure that the insulation layer of the cable 102 is quickly shaped. Therefore, a water cooling pipe 107 is also provided between the skin-coating chamber 106 and the tail pipe 109, and the cable 102 passes through the water cooling pipe 107, and the water cooling pipe 107 is filled with cold water to cool down and shape the outer insulation layer of the cable 102.

[0049] In addition, a water storage tank 108 is provided at the bottom of the water cooling pipe 107, and a bracket 120 is fixedly connected in the water storage tank 108. The water cooling pipe 107 is fixedly connected to the bracket 120, and a water pump 119 is provided in the water storage tank 108, wherein the water pump 119 is connected to the water cooling pipe 107 through a plurality of water supply pipes.

[0050] The water cooling pipe 107 can quickly cool down the outer insulation layer of the cable 102 and set it. Cold water is continuously injected into the water cooling pipe 107 to ensure the cooling effect. The upper end of the water cooling pipe 107 is open to facilitate the routing of the cable 102, and the cold water of the water cooling pipe 107 can also flow down through the opening. A water storage tank 108 is set at the bottom of the water cooling pipe 107, so that the cold water can be circulated internally to save water resources.

[0051] In summary, the present invention provides a low-voltage ring 114 in a strand barrel 104 for a cable strand, and a high-voltage ring 124 at a subsequent position, wherein the low-voltage ring 114 is sleeved outside a cable 102 that is not coated with an insulating layer, and the high-voltage ring 124 is sleeved outside a cable 102 that is coated with an insulating layer, and an ammeter is also connected between the low-voltage ring 114 and the high-voltage ring 124. If the thickness of the insulating layer of the cable 102 does not reach its withstand voltage level, or the insulating layer of the cable 102 is damaged or cracked, etc. The high-voltage ring 124 can break through the air and the insulating layer, allowing the cable 102 to become a conductor, so that the low-voltage ring 114 and the high-voltage ring 124 are conductive, and then can be detected by an ammeter. The detection mechanism is simple and convenient, and the detection is efficient and accurate.

[0052] A cleaning chamber 105 is set at the rear side of the stranding drum 104 and the front side of the covering chamber 106. An oiling roller brush 115, a water spray head 116 and a water suction port 117 are set in the cleaning chamber 105. The oiling roller brush 115 is used to scrub away the oil stains and dust on the surface of the cable 102, and then the water spray head 116 is used to rinse and finally the water is removed through the water suction port 117, so as to ensure that the cable 102 is clean before the insulation layer is coated, so that the insulation layer can be better attached to the outside of the cable 102. A water cooling pipe 107 is also set between the covering chamber 106 and the tail pipe 109, which can quickly cool down and shape the outer insulation layer of the cable 102. Cold water is continuously injected into the water cooling pipe 107 to ensure the cooling effect. The upper end opening of the water cooling pipe 107 facilitates the routing of the cable 102, and the cold water of the water cooling pipe 107 can also flow down through the opening, and a water storage tank 108 is set at the bottom of the water cooling pipe 107, so that the cold water can be circulated internally to save water resources. A wiper ring 122 is provided in the tail pipe 109 to scrape off moisture on the surface of the cable 102, and a hot air nozzle 123 is provided between the high-voltage ring 124 and the wiper ring 122 to dry the surface of the cable 102, which not only facilitates subsequent processing operations but also ensures that there is no moisture interference between the high-voltage ring 124 and the cable 102.

[0053] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples; within the context of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0054] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cable stranding device for cable production, comprising a turntable (103) for driving a single-wire conductor (101) to rotate, wherein the single-wire conductor (101) passes through a through hole at the outer edge of the turntable (103), characterized in that: The cable stranding equipment also includes: A twisting drum (104) is arranged concentrically with the rotating disk (103), the front end of the single-wire conductor (101) is twisted into a cable (102) in the twisting drum (104), and the other end of the single-wire conductor (101) is connected to a wire arrangement roller at the rear side of the rotating disk (103); A cleaning chamber (105) and a covering chamber (106) located at the rear side of the stranding drum (104), respectively used for cleaning the cable (102) and covering the cable (102) with an insulating layer; A tail tube (109) is arranged at the rear of the covering chamber (106), wherein a high-voltage ring (124) is arranged in the tail tube (109), and a low-voltage ring (114) is also arranged in the stranded wire drum (104), wherein the low-voltage ring (114) is sleeved on the outside of the cable (102) not covered with an insulating layer, and the high-voltage ring (124) is sleeved on the outside of the cable (102) covered with an insulating layer, and an ammeter is also connected between the low-voltage ring (114) and the high-voltage ring (124).

2. A cable stranding equipment for cable production according to claim 1, characterized in that: The cleaning chamber (105) is also fixedly connected with a water inlet pipe (110), and a fixed cylinder (112) is also provided in the cleaning chamber (105), wherein an oil-wiping roller brush (115), a water spray head (116) and a water suction port (117) are provided in the fixed cylinder (112), and the end of the water inlet pipe (110) is in communication with the oil-wiping roller brush (115), the water spray head (116) and the water-absorbing cotton (117).

3. A cable stranding equipment for cable production according to claim 2, characterized in that: The cleaning chamber (105) is also provided with a driving motor for driving the oil-wiping roller brush (115) to rotate and a booster pump connected to the water spray head (116).

4. A cable stranding equipment for cable production according to claim 2, characterized in that: A drainage trough (118) is also provided in the cleaning chamber (105); the drainage and suction port (117) and the trough (118) are located at the bottom of the fixed cylinder (112); and a water pump connected to the suction port (117) is also provided in the drainage trough (118).

5. The cable stranding equipment for cable production according to claim 1, characterized in that: The coating chamber (106) is also fixedly connected with a feed pipe (111) for conveying the insulating layer raw material in a hot-melt state, and a hot-melt bin (113) is also provided in the coating chamber (106), and the lower end of the feed pipe (111) is connected to the hot-melt bin (113).

6. The cable stranding equipment for cable production according to claim 1, characterized in that: A water cooling pipe (107) is also provided between the skin covering chamber (106) and the tail pipe (109), the cable (102) passes through the water cooling pipe (107), and the water cooling pipe (107) is filled with cold water to cool and shape the outer insulation layer of the cable (102).

7. A cable stranding equipment for cable production according to claim 6, characterized in that: A water storage bin (108) is provided at the bottom of the water cooling pipe (107), a bracket (120) is fixedly connected to the water storage bin (108), the water cooling pipe (107) is fixedly connected to the bracket (120), and a water pump (119) is provided in the water storage bin (108), and the water pump (119) is connected to the water cooling pipe (107) through a pipeline.

8. The cable stranding equipment for cable production according to claim 1, characterized in that: The cable (102) is twisted together by a central wire core and a plurality of single-wire conductors (101); a plurality of through holes are provided on the outer edge of the turntable (103); and a through hole for entering and exiting the wire core is also provided at the center of the turntable (103).

9. The cable stranding equipment for cable production according to claim 1, characterized in that: A connecting seat (121) is provided at the bottom of the tail pipe (109), and a water scraping ring (122) is also provided in the tail pipe (109) for scraping off moisture on the surface of the cable (102).

10. A cable stranding device for cable production according to claim 9, characterized in that: The high-pressure ring (124) is located at the rear side of the wiper ring (122), and a hot air nozzle (123) is provided between the high-pressure ring (124) and the wiper ring (122), and the hot air nozzle (123) is connected to the hot air blower in the connection seat (121).

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