CN113427751B - Vacuum air extractor for drum cable sheath - Google Patents

Abstract

The invention discloses a vacuum air extractor for a drum cable sheath, which relates to the technical field of cable production and aims to solve the problems that an armor layer is wrapped between an existing sheath and a cable in the prior art, most of armor materials are metal materials, a certain gap exists between the sheath and the cable in the assembly process, air is easy to accumulate and store, heat generated by the cable can be absorbed by the armor, and oxidation reaction can occur when the heated armor contacts oxygen. The cable negative pressure machine case comprises a cable negative pressure machine case body and is characterized in that a locking wire hoop is arranged at one end of the cable negative pressure machine case body, an open wire hoop is arranged at the other end of the cable negative pressure machine case body, the cable negative pressure machine case body comprises a power supply box body and a processing box body, the processing box body is arranged above the power supply box body, a machine case top plate is arranged at the top of the processing box body, the machine case top plate is connected with the processing box body through bolts, an air pressure instrument and a control module are arranged on the outer surface of the machine case top plate, and a pipeline bin is arranged below the air pressure instrument.

Description

A reel cable sheath vacuum extraction device

Technical Field

The invention relates to the technical field of cable production, in particular to a reel cable sheath vacuum exhaust device.

Background technique

Cable is an electric energy or signal transmission device, usually composed of several or several groups of wires, and the cable sheath is the outermost layer of the cable, such as VV is PVC insulation, PVC sheath. The tube worn outside is called a protective tube. The high-density polyethylene molecular chain structure here is regular, the molecular chain has fewer branched structures, and the branches are shorter. The molecular chains are arranged neatly, the distance between the molecular chains is small, and the interaction between the molecular chains is large. The black high-density polyethylene material used as the sheath material is made of a high-density polyethylene base resin specially used for the sheath material, and high-quality carbon black masterbatch and other related processing aids are added, and the mixture is mixed and granulated. The high-quality carbon black masterbatch content, carbon black particle size, dispersion and other factors have a huge impact on the long-term performance of the optical cable such as resistance to ultraviolet radiation aging and heat aging.

However, there is a layer of armor wrapped between the existing sheath and the cable. The armor is mostly made of metal materials. There will be a certain gap in the sheath during the assembly process, which is easy to accumulate air. The heat generated by the cable will be absorbed by the armor, and the heated armor will react with oxygen to produce an oxidation reaction. Therefore, it does not meet the existing needs. In this regard, we propose a reel cable sheath vacuum extraction device.

Summary of the invention

The object of the present invention is to provide a reel cable sheath vacuum extraction device to solve the problem proposed in the above background technology that a layer of armor is wrapped between the existing sheath and the cable, the armor is mostly made of metal materials, there will be a certain gap in the sheath during the assembly process, air is easily accumulated, the heat generated by the cable will be absorbed by the armor, and the heated armor will undergo an oxidation reaction when in contact with oxygen.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drum cable sheath vacuum extraction device, comprising a cable negative pressure chassis, one end of the cable negative pressure chassis is provided with a locking wire hoop, and the other end of the cable negative pressure chassis is provided with an open wire hoop, the cable negative pressure chassis comprises a power supply box and a processing box, and the processing box is arranged above the power supply box, the top of the processing box is provided with a box top plate, and the box top plate and the processing box are connected by bolts, the outer surface of the box top plate is provided with an air pressure instrument and a control module, and a pipeline compartment is provided below the air pressure instrument, the interior of the power supply box is provided with an assembly compartment, and a pump body compartment is provided on one side of the assembly compartment, the outer surfaces of the pipeline compartment and the pump body compartment are provided with opening and closing cover plates, and the opening and closing cover plates are connected to the cable negative pressure chassis by screws.

Preferably, both ends of the processing box are provided with line inlet sleeves, and there are four line inlet sleeves, a vacuum shaft is provided inside the pipeline bin, and the vacuum shaft is combined and connected with the processing box, and a pipeline groove is provided below the vacuum shaft.

Preferably, a vacuum pressure chamber is arranged inside the vacuum shaft channel, and suction and pressure pipe openings are arranged at the bottom of both sides of the vacuum shaft channel, and the suction and pressure pipe openings extend to the inside of the vacuum pressure chamber.

Preferably, both ends of the vacuum shaft channel are provided with sealing plugs, and the sealing plugs are closely connected to the vacuum shaft channel, and the outer surface of the sealing plug is provided with through grooves, and there are four through grooves.

Preferably, the inlet sleeve includes a cable opening and a transfer tube, and the cable opening extends to the interior of the transfer tube, and the transfer tube is combined and connected to the vacuum shaft channel.

Preferably, a ring of balls is provided on the inner side of the cable harness opening, and the ring of balls is rotatably connected to the cable harness opening, and a fan-shaped rubber plate is provided on the inner side of the ring of balls, and the fan-shaped rubber plate is connected to the cable harness opening through a slot.

Preferably, the locking wire hoop and the opening wire hoop have the same structure, and a one-way air valve is provided at one end of the open wire hoop. The locking wire hoop and the opening wire hoop both include a threaded secondary tube, a main sleeve and an inner cone locking ring, and the threaded secondary tube and the main sleeve are arranged as an integrated structure.

Preferably, the inner cone lock ring is rotatably connected to the threaded auxiliary pipe, and a sponge rubber ring is provided on the inner side of the other end of the inner cone lock ring, and the one-way air valve is rotatably connected to the main sleeve via an internal thread.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention installs an open wire clamp and a locked wire clamp at both ends of the cable to be processed, and then uses a vacuum device to create a vacuum negative pressure environment. The cable passes through the environment, and the air inside the sheath flows to one end of the open wire clamp through the pressure difference effect. Then, the cable is continuously moved to complete the air extraction operation of the entire cable.

2. The inlet sleeve of the present invention is located at one side of the output end of the cable. Its main function is to fix the cable and lock the cable part after degassing to prevent air from flowing to one end of the inlet sleeve. The whole is composed of a cable bundle and a transfer tube, wherein the transfer tube is connected to the through groove on the surface of the plug to ensure the sealing of the connection. A ring of balls is arranged on the inner side of the cable bundle. The ring of balls can form an extrusion form for the cable, and the structure of the balls is used to realize the movement during the extrusion process. The fan-shaped rubber plate on the outer side of the balls is the second closed defense line designed. The cable after degassing is locked on the basis of the ring of balls to prevent air from entering.

3. The locking wire clamp and the open wire clamp of the present invention have the same basic structure and only differ in size. The locking wire clamp is a closed structure, while one end of the open wire clamp realizes the exhaust function through a one-way air valve. Both sets of wire clamps are composed of a threaded auxiliary tube, a main sleeve and an inner cone locking ring. The threaded auxiliary tube and the main sleeve are arranged as an integrated structure, and the inner cone locking ring is rotatably connected to the threaded auxiliary tube. When in use, the two ends of the cable are respectively inserted into the interior of the main sleeve, and then the inner cone locking ring is rotated to lock the cable at the threaded auxiliary tube. The sponge rubber ring on the inner side of the inner cone locking ring can fix the cable while avoiding wear on the cable.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an overall front view of the present invention;

FIG2 is a schematic diagram of the structure of a cable negative pressure chassis according to the present invention;

FIG3 is a schematic diagram of the vacuum shaft structure of the present invention;

FIG4 is a schematic diagram of the structure of the inlet bushing of the present invention;

FIG. 5 is a schematic diagram of the open wire hoop structure of the present invention.

In the figure: 1. Cable negative pressure chassis; 2. Power supply box; 3. Processing box; 4. Control module; 5. Air pressure instrument; 6. Pipe compartment; 7. Unit compartment; 8. Pump compartment; 9. Chassis top plate; 10. Locking wire clamp; 11. Open wire clamp; 12. Threaded auxiliary pipe; 13. Inner cone locking ring; 14. Sponge rubber ring; 15. Main casing; 16. One-way air valve; 17. Inlet casing; 18. Vacuum shaft; 19. Pipeline groove; 20. Opening and closing cover; 21. Vacuum pressure chamber; 22. Seal; 23. Groove; 24. Pumping and pressure pipe mouth; 25. Cable bundle mouth; 26. Ring ball; 27. Fan-shaped rubber plate; 28. Transfer pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

Please refer to Figures 1-2. An embodiment of the present invention is: a reel cable sheath vacuum exhaust device, including a cable negative pressure chassis 1, one end of the cable negative pressure chassis 1 is provided with a locking wire hoop 10, and the other end of the cable negative pressure chassis 1 is provided with an open wire hoop 11, the open wire hoop 11 and the locking wire hoop 10 are respectively installed at the two ends of the cable to be processed, and then a vacuum device is used to create a vacuum negative pressure environment, the cable passes through the environment, and the air inside the sheath flows to the end of the open wire hoop 11 through the pressure difference effect, and then the cable is continuously moved to complete the exhaust operation of the entire cable, the cable negative pressure chassis 1 includes a power supply box 2 and a processing box 3, and the processing box 3 is arranged above the power supply box 2, and a box top plate 9 is arranged on the top of the processing box 3, and the box top plate 9 is connected to the processing box 3 by bolts, and the outer surface of the box top plate 9 is provided with an air pressure instrument 5 and A control module 4 is provided, and a pipeline bin 6 is arranged below the air pressure instrument 5. An engine bin 7 is arranged inside the power supply box 2, and a pump body bin 8 is arranged on one side of the engine bin 7. The outer surfaces of the pipeline bin 6 and the pump body bin 8 are provided with an opening and closing cover plate 20, and the opening and closing cover plate 20 is connected to the cable negative pressure chassis 1 by screws. Inlet sleeves 17 are arranged at both ends of the processing box 3, and there are four inlet sleeves 17. The inlet sleeves 17 are located on the output end side of the cable. Its main function is to fix the cable and lock the cable part after vacuuming to prevent air from flowing to one end of the inlet sleeve 17. A vacuum shaft 18 is arranged inside the pipeline bin 6, and the vacuum shaft 18 is combined and connected with the processing box 3. A pipeline groove 19 is arranged below the vacuum shaft 18 to create a vacuum negative pressure environment inside the vacuum shaft 18, and the four groups of cables need to pass through this section of the shaft for processing.

Please refer to Figures 3-4. A vacuum pressure chamber 21 is provided inside the vacuum shaft channel 18. Pumping and pressure pipe ports 24 are provided at the bottom of both sides of the vacuum shaft channel 18, and the pumping and pressure pipe ports 24 extend to the inside of the vacuum pressure chamber 21. Both ends of the vacuum shaft channel 18 are provided with sealing plugs 22, and the sealing plugs 22 are closely connected to the vacuum shaft channel 18 to ensure the sealing of the shaft channel. The outer surface of the sealing plug 22 is provided with through grooves 23, and there are four through grooves 23. The incoming wire sleeve 17 includes a cable tie port 25 and a transfer tube 28, and the cable tie port 25 extends to the inside of the transfer tube 28. The transfer tube 28 is connected to the through groove 23 on the surface of the sealing plug 22. To ensure the sealing of the connection, the adapter tube 28 is combined and connected with the vacuum shaft 18, and a ring ball 26 is arranged on the inner side of the cable bundle 25, and the ring ball 26 is rotatably connected to the cable bundle 25. A fan-shaped rubber plate 27 is arranged on the inner side of the ring ball 26, and the fan-shaped rubber plate 27 is connected to the cable bundle 25 through a slot. The ring ball 26 can form an extrusion form on the cable, and the structure of the ball is used to realize the movement during the extrusion process. The fan-shaped rubber plate 27 on the outer side is the second closed defense line of the design. On the basis of the ring ball 26, the cable after degassing is locked to prevent air from entering.

Please refer to FIG5 . The locking wire hoop 10 and the open wire hoop 11 have the same structure, and a one-way air valve 16 is provided at one end of the open wire hoop 11. The locking wire hoop 10 and the open wire hoop 11 have the same basic structure, and only differ in size. The locking wire hoop 10 is a closed structure, while one end of the open wire hoop 11 realizes the exhaust function through the one-way air valve 16. The locking wire hoop 10 and the open wire hoop 11 both include a threaded auxiliary pipe 12, a main sleeve 15 and an inner cone locking ring 13, and the threaded auxiliary pipe 12 and the main sleeve 15 are arranged as an integrated structure, the inner cone locking ring 13 is rotatably connected to the threaded auxiliary pipe 12, and a sponge rubber ring 14 is arranged on the inner side of the other end of the inner cone locking ring 13, and the one-way air valve 16 is rotatably connected to the main sleeve 15 through an internal thread. When in use, the two ends of the cable are respectively inserted into the inside of the main sleeve 15, and then the inner cone locking ring 13 is rotated to lock the cable at the threaded auxiliary pipe 12. The sponge rubber ring 14 on the inner side of the inner cone locking ring 13 can fix the cable while avoiding wear on the cable.

Working principle: When in use, insert the two ends of the cable into the main sleeve 15 respectively, and then rotate the inner cone locking ring 13 to lock the cable in the threaded secondary tube 12. The sponge rubber ring 14 on the inner side of the inner cone locking ring 13 can fix the cable while avoiding wear on the cable. The basic structure of the locking wire hoop 10 and the open wire hoop 11 are the same, and there is only a difference in size. At the same time, the locking wire hoop 10 is a closed structure, and one end of the open wire hoop 11 realizes the exhaust function through a one-way air valve 16. Then it is pulled from the input end of the chassis into the internal vacuum shaft 18 to create a vacuum negative pressure environment inside the vacuum shaft 18. All four groups of cables need to be processed through this section of the shaft, and the air inside the sheath flows to one end of the open wire hoop 11 through the pressure difference effect, and then continuously. The cable is moved to complete the vacuum operation of the entire cable. At the same time, four sets of inlet sleeves 17 need to be designed on one side of the output end. Their main function is to fix the cable and lock the cable part after vacuuming to prevent air from flowing to one end of the inlet sleeve 17. The inlet sleeve 17 is composed of a cable bundle 25 and a transfer tube 28, wherein the transfer tube 28 is connected to the groove 23 on the surface of the plug 22 to ensure the sealing of the connection. A ring of balls 26 is arranged on the inner side of the cable bundle 25. The ring of balls 26 can form an extrusion form on the cable, and the structure of the balls is used to realize the movement during the extrusion process. The fan-shaped rubber plate 27 on the outer side of the balls is the second closed defense line of the design. On the basis of the ring of balls 26, the cable after vacuuming is locked to prevent air from entering.

It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims (2)

1. The utility model provides a reel cable sheath vacuum air exhaust device, includes cable negative pressure machine case (1), its characterized in that: the utility model discloses a vacuum processing device, including cable negative pressure machine case (1), cable negative pressure machine case (1)'s one end is provided with locking wire hoop (10), and cable negative pressure machine case (1)'s the other end is provided with open wire hoop (11), cable negative pressure machine case (1) include power box (2) and processing box (3), and processing box (3) set up in the top of power box (2), the top of processing box (3) is provided with quick-witted case roof (9), and quick-witted case roof (9) and processing box (3) pass through bolted connection, the surface of quick-witted case roof (9) is provided with barometer (5) and control module (4), and the below of barometer (5) is provided with pipeline storehouse (6), the inside of power box (2) is provided with unit storehouse (7), and one side of unit storehouse (7) is provided with pump body storehouse (8), the surface of pipeline storehouse (6) and pump body storehouse (8) all is provided with apron (20) that open and shut, and apron (20) and cable negative pressure machine case (1) pass through the connection, the surface of box (3) and processing box (3) are provided with two inlet wire storehouse (17) and four vacuum feed screw (17) and are all set up in the vacuum processing box (17) and are connected with pipeline storehouse (18), the utility model discloses a fan-shaped air valve, including vacuum shaft way (18), pipeline groove (19) are provided with in the below of vacuum shaft way (18), the inside of vacuum shaft way (18) is provided with vacuum pressure chamber (21), the bottom of vacuum shaft way (18) both sides is provided with pump pressure mouth (24), and pump pressure mouth (24) extend to the inside of vacuum pressure chamber (21), both ends of vacuum shaft way (18) all are provided with seal (22), and seal (22) are connected with vacuum shaft way (18) laminating, the surface of seal (22) is provided with groove (23), and groove (23) are four, inlet wire sleeve (17) include cable bundle mouth (25) and switching pipe (28), and the inside that cable bundle mouth (25) extends to switching pipe (28), switching pipe (28) are connected with vacuum shaft way (18) combination, the inboard of cable bundle mouth (25) is provided with ring column ball (26), and ring column (26) are connected with cable bundle mouth (25) rotation, ring column (26) are provided with fan-shaped ball hoop (25) and one end of fan-shaped air valve (11) are connected with fan-shaped air valve (11) through fan-shaped air valve (27), the locking wire hoop (10) and the opening wire hoop (11) comprise a threaded auxiliary pipe (12), a main sleeve (15) and an inner cone locking ring (13), and the threaded auxiliary pipe (12) and the main sleeve (15) are arranged into an integrated structure.

2. The drum cable sheath vacuum pump of claim 1, wherein: the inner cone locking ring (13) is rotationally connected with the threaded auxiliary pipe (12), a sponge rubber ring (14) is arranged on the inner side of the other end of the inner cone locking ring (13), and the one-way air valve (16) is rotationally connected with the main sleeve pipe (15) through internal threads.