Cable with braided shield and production equipment

Abstract

The invention discloses a cable with braided shielding and production equipment, which relates to the technical field of cable production, including a conductor layer, an inner shielding layer, an insulating layer, an outer shielding layer, an isolation layer and a sheath layer which are arranged in sequence from the inside to the outside, the conductor layer is made of tinned copper clad aluminum alloy wire, the inner shielding layer is made of copper foil wire, the insulating layer is made of ceramic fire-resistant silicone rubber, the outer shielding layer is made of tinned copper clad aluminum alloy wire and nylon wire woven in two directions, the isolation layer is made of high-density polyethylene, and the sheath layer is made of chlorosulfonated polyethylene. The invention plays an insulating and protective role on the conductor layer through the insulating layer, the inner shielding layer can make the conductor layer and the insulating layer form a good contact, change the smoothness of the conductor layer surface, avoid local discharge on the conductor layer surface, make the electric field distribution uniform, prevent the conductor layer tip discharge from damaging the insulating layer, the outer shielding layer has excellent conductivity, shields interference, and improves the flexibility of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of cable production, in particular to a cable with braided shielding and production equipment. Background Art

[0002] Shielded cable is a transmission line that uses a metal mesh braided layer to wrap the signal line. The braided layer is generally red copper or tinned copper. The shielding is to ensure the transmission performance of the system in an environment with electromagnetic interference.

[0003] For example, the Chinese patent with publication number CN220439268U and titled "A cross-linked polyethylene insulated environmentally friendly marine cable and production equipment" includes a mounting plate, the top of the mounting plate is connected to a top plate, the bottom of the mounting plate is connected to a bottom plate, the bottom of the top plate and the top of the bottom plate are both provided with scanners, the front of the mounting plate is connected to a clamping structure, the clamping structure includes a connecting rod, one end of the connecting rod is connected to a first clamping plate, and the front of the first clamping plate is movably provided with a second clamping plate. Through the coordinated use of the first clamping plate, the connector, the screw hole, the second clamping plate and the screw rod, the device can be used to detect any position of the cable. By using the bristles, it is easy to clean the dust on the outer layer of the cable, thereby preventing the dust from affecting the detection results.

[0004] Although the cross-linked polyethylene insulated environmentally friendly marine cable and production equipment in the above patent are practical and convenient, they also have shortcomings. The cable has weak anti-interference ability, ages quickly, and is very prone to breakage, which cannot meet the use requirements. Summary of the invention

[0005] The object of the present invention is to provide a cable with a braided shield and a production device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: the cable with a braided shield comprises a conductor layer, an inner shielding layer, an insulating layer, an outer shielding layer, an isolation layer and a sheath layer which are arranged in sequence from the inside to the outside, the conductor layer is made of tinned copper clad aluminum alloy wire, the inner shielding layer is made of copper foil wire, the insulating layer is made of ceramicized fire-resistant silicone rubber, the outer shielding layer is made of tinned copper clad aluminum alloy wire and nylon wire woven in two directions, the isolation layer is made of high-density polyethylene, and the sheath layer is made of chlorosulfonated polyethylene.

[0007] Furthermore, the braiding density of the outer shielding layer is greater than 90%.

[0008] Furthermore, the outer side of the sheath layer is coated with a flame retardant.

[0009] The present solution also provides a production device for cables with braided shielding, including a base, a positioning block for positioning the cable, a reel, a first transmission assembly and a second transmission assembly, wherein two first support plates are symmetrically provided on the base, and the reel is rotatably connected between the two first support plates, and two second support plates are symmetrically provided on the base, and the positioning block reciprocates between the two second support plates, and the first transmission assembly is driven by the rotation of the reel to make the positioning block reciprocate, and a cutting knife is rotatably connected to one side of the positioning block, and when the number of rotations of the reel reaches a preset value, the cutting knife is rotated by the second transmission assembly to cut the cable.

[0010] Further, the first transmission assembly includes a first rotating shaft and a second rotating shaft, the first rotating shaft is rotatably connected between the two first support plates, the reel is sleeved on the first rotating shaft, the second rotating shaft is rotatably connected between the two second support plates, a synchronous belt is commonly sleeved on the first rotating shaft and the second rotating shaft, two spiral grooves connected end to end are opened on the second rotating shaft, a first slider is slidably sleeved on the second rotating shaft, a protrusion is provided in the first slider, the two spiral grooves are slidably connected to the protrusion, the positioning block is fixedly connected to the top of the first slider, a slide rail is provided between the two second support plates, and the first slider is slidably connected to the slide rail.

[0011] Furthermore, a positioning hole is provided in the positioning block, the inner wall of the positioning hole is horizontally slidably connected with a clamping plate, one side of the clamping plate is fixedly connected with a sliding rod, the end of the sliding rod away from the clamping plate is fixedly connected with a baffle, a first spring is sleeved on the sliding rod, and the two ends of the first spring are respectively fixedly connected to one side of the positioning block and one side of the baffle.

[0012] The gear is connected with the second transmission gear by a toothed wheel, and the toothed wheel is connected with the toothed wheel by a toothed wheel so that the toothed wheel can be connected with the gear in a fixed manner.

[0013] Furthermore, a ring is sleeved on the push rod, a third spring is sleeved on the push rod, and two ends of the third spring are respectively fixedly connected to the ring and a second support plate close to the reciprocating screw.

[0014] Furthermore, one end of the push rod away from the rack is arranged obliquely.

[0015] Furthermore, a pressure rod is vertically slidably connected between the two first support plates, a slide groove is vertically opened on one of the second support plates, a guide rod is vertically arranged in the slide groove, a second spring is sleeved on the guide rod, the pressure rod is slidably sleeved on the guide rod, and the two ends of the second spring are respectively fixedly connected to the inner wall of the slide groove and the guide rod.

[0016] Compared with the prior art, the present invention provides the following beneficial effects: the present invention provides insulation protection for the conductor layer through the insulating layer; the inner shielding layer can make the conductor layer and the insulating layer form good contact, change the smoothness of the surface of the conductor layer, avoid local discharge on the surface of the conductor layer, make the electric field evenly distributed, and prevent the discharge at the tip of the conductor layer from damaging the insulating layer; the outer shielding layer has excellent conductivity, shields interference, and improves the flexibility of the cable, avoiding the cable from breaking due to severe aging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A cross-sectional view of a cable with a braided shield provided by an embodiment of the present invention;

[0019] Figure 2 A perspective view of a production device for a cable with a braided shield provided by an embodiment of the present invention;

[0020] Figure 3 A top view of a production device for a cable with a braided shield provided by an embodiment of the present invention;

[0021] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0022] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0023] Figure 6 for Figure 3 Sectional view at the middle BB;

[0024] Figure 7 for Figure 6 Enlarged view of point D in the middle.

[0025] Description of reference numerals: 1. conductor layer; 2. inner shielding layer; 3. insulating layer; 4. outer shielding layer; 5. isolation layer; 6. sheath layer; 7. base; 8. first support plate; 9. second support plate; 10. motor; 11. synchronous belt; 12. first rotating shaft; 13. second rotating shaft; 14. spiral groove; 15. first slider; 16. protrusion; 17. slide rail; 18. positioning block; 19. positioning hole; 20. gear; 21. rotating rod; 2 2. Cutting knife; 23. Clamping plate; 24. Slide bar; 25. Baffle; 26. First spring; 27. Reel; 28. Winding groove; 29. ​​Pressure rod; 30. Guide rod; 31. Second spring; 32. Slide groove; 33. Worm gear; 34. Worm; 35. Fixed plate; 36. Limit rod; 37. Reciprocating screw; 38. Second slider; 39. Abutment block; 40. Push rod; 41. Ring; 42. Third spring; 43. Rack. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1-7 , a technical solution provided by an embodiment of the present invention: the cable with braided shielding includes a conductor layer 1, an inner shielding layer 2, an insulating layer 3, an outer shielding layer 4, an isolation layer 5 and a sheath layer 6 which are arranged in sequence from the inside to the outside, the conductor layer 1 is made of tinned copper clad aluminum alloy wire, the inner shielding layer 2 is made of copper foil wire, the insulating layer 3 is made of ceramic fire-resistant silicone rubber, the outer shielding layer 4 is made of tinned copper clad aluminum alloy wire and nylon wire and woven in two directions, the isolation layer 5 is made of high-density polyethylene, and the sheath layer 6 is made of chlorosulfonated polyethylene. Specifically, the insulating layer 3 plays an insulating and protective role on the conductor layer 1, the inner shielding layer 2 can make the conductor layer 1 form a good contact with the insulating layer 3, change the smoothness of the surface of the conductor layer 1, avoid local discharge on the surface of the conductor layer 1, make the electric field distribution uniform, and prevent the tip discharge of the conductor layer 1 from damaging the insulating layer 3. The outer shielding layer 4 has excellent conductivity, shielding interference, and improves the flexibility of the cable. The braiding density of the outer shielding layer 4 is greater than 90%.

[0028] As a preferred technical solution, the outer side of the sheath layer 6 is coated with a flame retardant. Specifically, when the cable is burning, the flame retardant can block the flame, and the sheath layer 6 can block the impact of falling objects, effectively preventing the flame from spreading.

[0029] The present solution also provides a production device for cables with braided shielding, including a base 7, a positioning block 18 for positioning the cable, a reel 27, a first transmission assembly and a second transmission assembly. Two first support plates 8 are symmetrically provided on the base 7, and the reel 27 is rotatably connected between the two first support plates 8. Two second support plates 9 are symmetrically provided on the base 7. The positioning block 18 reciprocates between the two second support plates 9. The first transmission assembly is driven by the rotation of the reel 27 to make the positioning block 18 reciprocate. A cutting knife 22 is rotatably connected to one side of the positioning block 18, and when the number of revolutions of the reel 27 reaches a preset value, the cutting knife 22 is rotated by the second transmission assembly to cut the cable.

[0030] As a preferred technical solution, the first transmission assembly includes a first rotating shaft 12 and a second rotating shaft 13, the first rotating shaft 12 is rotatably connected between the two first support plates 8, the reel 27 is sleeved on the first rotating shaft 12, the second rotating shaft 13 is rotatably connected between the two second support plates 9, the first rotating shaft 12 and the second rotating shaft 13 are jointly sleeved with a synchronous belt 11, the second rotating shaft 13 is provided with two spiral grooves 14 connected end to end, the second rotating shaft 13 is slidably sleeved with a first slider 15, a protrusion 16 is provided in the first slider 15, the two spiral grooves 14 are slidably connected to the protrusion 16, the positioning block 18 is fixedly connected to the top of the first slider 15, and a slide rail 17 is provided between the two second support plates 9. The first slider 15 is slidably connected to the slide rail 17. Specifically, a motor 10 is provided on the base 7. The output end of the motor 10 is fixedly connected to one end of the first rotating shaft 12. The motor 10 is started to drive the first rotating shaft 12 to rotate, and the reel 27 is driven to rotate to wind the cable. The second rotating shaft 13 is driven to rotate through the transmission of the synchronous belt 11. The slide rail 17 limits the circumferential rotation of the first slider 15. Through the cooperation between the protrusion 16 and the two spiral grooves 14 connected end to end, the first slider 15 drives the positioning block 18 to slide reciprocatingly horizontally on the slide rail 17 to cooperate with the reel 27 to wind the cable. Preferably, a winding groove 28 is opened on the reel 27 to adapt to the cable winding and avoid mutual squeezing between the cables.

[0031] As a preferred technical solution, a positioning hole 19 is provided in the positioning block 18, and the inner wall of the positioning hole 19 is horizontally slidably connected with a clamping plate 23, one side of the clamping plate 23 is fixedly connected with a slide rod 24, and the end of the slide rod 24 away from the clamping plate 23 is fixedly connected with a baffle 25, and a first spring 26 is sleeved on the slide rod 24, and the two ends of the first spring 26 are respectively fixedly connected to one side of the positioning block 18 and one side of the baffle 25. Specifically, the elastic deformation of the first spring 26 can enable the clamping plate 23 to position cables of different diameters, thereby improving the adaptability of the device.

[0032] As a preferred technical solution, the second transmission assembly includes a gear 20, a worm wheel 33, a worm 34 meshing with the worm wheel 33, a fixed plate 35, a limit rod 36, a reciprocating screw 37, a second slider 38, an abutment block 39, a push rod 40 and a rack 43 meshing with the gear 20, the gear 20 is rotatably connected in the positioning block 18, a rotating rod 21 is passed through the gear 20, the cutting knife 22 is fixedly connected to one end of the rotating rod 21, the worm wheel 33 is sleeved on the first rotating shaft 12, and the fixed plate 35 is vertically fixedly connected to On the base 7, the worm gear 33 is rotatably connected to the fixed plate 35, one end of the reciprocating screw 37 is coaxially fixedly connected to one end of the worm gear 33, the second slider 38 is slidably sleeved on the reciprocating screw 37, the limit rod 36 is horizontally fixedly connected to one side of the fixed plate 35, the second slider 38 is slidably sleeved on the limit rod 36, the abutment block 39 is fixedly connected to one side of the second slider 38, the rack 43 is horizontally slidably connected to the second support plate 9 close to the reciprocating screw 37, and one end of the push rod 40 is fixedly connected to one end of the rack 43. The abutment block 39 is in abutment with the push rod 40. Specifically, the first rotating shaft 12 drives the worm wheel 33 to rotate, and the worm wheel 33 drives the worm 34 to rotate through meshing transmission, and the worm 34 drives the reciprocating screw 37 to rotate. The limiting rod 36 plays a guiding and limiting role to prevent the second slider 38 from rotating in the circumferential direction, so that the second slider 38 slides on the reciprocating screw 37. In the process of the abutment block 39 sliding toward the second support plate 9 with the second slider 38, the abutment block 39 abuts with the push rod 40 to squeeze and push The rod 40 enables the push rod 40 to drive the rack 43 to slide toward the positioning block 18. When the number of revolutions of the reel 27 reaches a preset value, the positioning block 18 and the rack 43 approach each other, the rack 43 engages with the gear 20, and the gear 20 drives the cutting knife 22 to rotate through the rotating rod 21 to cut the cable, which can achieve the effect of cutting a certain length of cable, and the cutting knife 22 has a better rotary cutting effect, which can avoid the uneven cutting surface or the phenomenon of continuous cutting to a certain extent, and the accuracy is improved, thereby improving the intelligence level of the device.

[0033] As a preferred technical solution, a ring 41 is sleeved on the push rod 40, and a third spring 42 is sleeved on the push rod 40. The two ends of the third spring 42 are respectively fixedly connected to the ring 41 and the second support plate 9 close to the reciprocating screw 37. Specifically, during the process of the second slider 38 driving the abutment block 39 to reset, the abutment block 39 does not abut against the push rod 40. The elastic deformation of the third spring 42 can make the push rod 40 drive the rack 43 to reset to the initial position, which is convenient for the next winding and cutting.

[0034] As a preferred technical solution, the end of the push rod 40 away from the rack 43 is tilted. Specifically, the tilted setting is to facilitate squeezing the push rod 40 during the sliding of the abutment block 39, so that the push rod 40 drives the rack 43 to move.

[0035] As a preferred technical solution, a pressure rod 29 is vertically slidably connected between the two first support plates 8, one of the second support plates 9 is vertically provided with a slide groove 32, a guide rod 30 is vertically arranged in the slide groove 32, and a second spring 31 is sleeved on the guide rod 30. The pressure rod 29 is slidably sleeved on the guide rod 30, and the two ends of the second spring 31 are respectively fixedly connected to the inner wall of the slide groove 32 and the guide rod 30. Specifically, in the process of winding the cable on the reel 27, the thickness of the cable on the reel 27 will increase, and the pressure rod 29 can press the cable tightly to prevent the cable from loosening during the winding process, and also to avoid the cable from loosening and flying after cutting to accidentally injure the operator and equipment.

[0036] Working principle: The invention provides insulation protection for the conductor layer 1 through the insulating layer 3. The inner shielding layer 2 can make the conductor layer 1 form good contact with the insulating layer 3, change the smoothness of the surface of the conductor layer 1, avoid local discharge on the surface of the conductor layer 1, make the electric field evenly distributed, and prevent the discharge at the tip of the conductor layer 1 from damaging the insulating layer 3. The outer shielding layer 4 has excellent conductivity, shields interference, and improves the flexibility of the cable, avoiding the cable from breaking due to severe aging. When winding and cutting the cable, first put the cable into the positioning hole 19, start the motor 10 to drive the first rotating shaft 12 to rotate, drive the reel 27 to rotate to wind the cable, and drive the second rotating shaft 13 to rotate through the transmission of the synchronous belt 11. The slide rail 17 limits the circumferential rotation of the first slider 15. Through the cooperation between the protrusion 16 and the two spiral grooves 14 connected end to end, the first slider 15 drives the positioning block 18 to slide back and forth horizontally on the slide rail 17, and cooperates with the reel 27 to roll the cable The first rotating shaft 12 is wound on the winding groove 28, and the first rotating shaft 12 drives the worm wheel 33 to rotate. The worm wheel 33 drives the worm 34 to rotate through the meshing transmission, and the worm 34 drives the reciprocating screw 37 to rotate. The limiting rod 36 plays a guiding and limiting role to prevent the second slider 38 from making a circumferential rotation, so that the second slider 38 slides on the reciprocating screw 37. In the process of the abutment block 39 sliding toward the second support plate 9 with the second slider 38, the abutment block 39 abuts and cooperates with the pushing rod 40, squeezing the pushing rod 40 so that the pushing rod 40 drives the rack 43 to slide toward the positioning block 18. When the number of revolutions of the reel 27 reaches a preset value, the positioning block 18 and the rack 43 approach each other, the rack 43 meshes with the gear 20, and the gear 20 drives the cutting knife 22 to rotate through the rotating rod 21 to cut the cable, which can achieve the effect of cutting a certain length of cable, and the cutting knife 22 has a better rotary cutting effect, which can avoid the uneven cutting surface or the phenomenon of continuous cutting to a certain extent, and the accuracy is improved, thereby improving the intelligence level of the device.

[0037] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A production device for a cable with a braided shield, used for producing a cable with a braided shield, the cable comprising, from inside to outside, a conductor layer (1), an inner shielding layer (2), an insulating layer (3), an outer shielding layer (4), an isolation layer (5) and a sheath layer (6), wherein the conductor layer (1) is made of tinned copper-clad aluminum alloy wire, the inner shielding layer (2) is made of copper foil wire, the insulating layer (3) is made of ceramic fire-resistant silicone rubber, the outer shielding layer (4) is made of tinned copper-clad aluminum alloy wire and nylon wire in a bidirectional braiding manner, the isolation layer (5) is made of high-density polyethylene, the sheath layer (6) is made of chlorosulfonated polyethylene, the braiding density of the outer shielding layer (4) is greater than 90%, and the outer side of the sheath layer (6) is coated with a flame retardant, characterized in that: It also comprises a base (7), a positioning block (18) for positioning the cable, a reel (27), a first transmission assembly and a second transmission assembly, wherein two first support plates (8) are symmetrically arranged on the base (7), the reel (27) is rotatably connected between the two first support plates (8), two second support plates (9) are symmetrically arranged on the base (7), the positioning block (18) slides back and forth between the two second support plates (9), the first transmission assembly is driven by the rotation of the reel (27) to make the positioning block (18) slide back and forth, and a cutting knife (22) is rotatably connected to one side of the positioning block (18); When the number of revolutions of the reel (27) reaches a preset value, the cutting knife (22) is rotated through the second transmission assembly to cut the cable. The second transmission assembly comprises a gear (20), a worm wheel (33), a worm (34) meshing with the worm wheel (33), a fixing plate (35), a limiting rod (36), a reciprocating screw (37), a second slider (38), an abutment block (39), a pushing rod (40), and a rack (43) meshing with the gear (20). The gear (20) is rotatably connected in the positioning block (18). A rotating rod (21) is passed through the gear (20). The cutting knife (22) is fixedly connected to one end of the rotating rod (21). The worm wheel (33) is sleeved on the first rotating shaft (12). The fixing plate (35) The worm wheel (33) is vertically fixedly connected to the base (7); the worm wheel (33) is rotatably connected to the fixed plate (35); one end of the reciprocating screw (37) is coaxially fixedly connected to one end of the worm wheel (33); the second slider (38) is slidably sleeved on the reciprocating screw (37); the limit rod (36) is horizontally fixedly connected to one side of the fixed plate (35); the second slider (38) is slidably sleeved on the limit rod (36); the abutment block (39) is fixedly connected to one side of the second slider (38); the rack (43) is horizontally slidably connected to a second support plate (9) close to the reciprocating screw (37); one end of the push rod (40) is fixedly connected to one end of the rack (43); and the abutment block (39) abuts and cooperates with the push rod (40).

2. The production equipment of a cable with a braided shield according to claim 1, characterized in that: The first transmission assembly comprises a first rotating shaft (12) and a second rotating shaft (13), the first rotating shaft (12) being rotatably connected between the two first support plates (8), the reel (27) being sleeved on the first rotating shaft (12), the second rotating shaft (13) being rotatably connected between the two second support plates (9), a synchronous belt (11) being jointly transmission sleeved on the first rotating shaft (12) and the second rotating shaft (13), two spiral grooves (14) connected end to end being provided on the second rotating shaft (13), a first sliding block (15) being slidably sleeved on the second rotating shaft (13), a protrusion (16) being provided in the first sliding block (15), the two spiral grooves (14) being slidably connected to the protrusion (16), the positioning block (18) being fixedly connected to the top of the first sliding block (15), a slide rail (17) being provided between the two second support plates (9), the first sliding block (15) being slidably connected to the slide rail (17).

3. The production equipment of a cable with a braided shield according to claim 1, characterized in that: A positioning hole (19) is provided in the positioning block (18), and a clamping plate (23) is horizontally slidably connected to the inner wall of the positioning hole (19), a sliding rod (24) is fixedly connected to one side of the clamping plate (23), and a baffle (25) is fixedly connected to one end of the sliding rod (24) away from the clamping plate (23), and a first spring (26) is sleeved on the sliding rod (24), and two ends of the first spring (26) are respectively fixedly connected to one side of the positioning block (18) and one side of the baffle (25).

4. The production equipment of a cable with a braided shield according to claim 1, characterized in that: A sleeve ring (41) is sleeved on the push rod (40), a third spring (42) is sleeved on the push rod (40), and two ends of the third spring (42) are respectively fixedly connected to the sleeve ring (41) and a second support plate (9) close to the reciprocating screw (37).

5. The production equipment of a cable with a braided shield according to claim 1, characterized in that: One end of the push rod (40) away from the rack (43) is arranged in an inclined manner.

6. The production equipment of a cable with a braided shield according to claim 1, characterized in that: A pressure rod (29) is vertically slidably connected between the two first support plates (8), a slide groove (32) is vertically provided on one of the second support plates (9), a guide rod (30) is vertically arranged in the slide groove (32), a second spring (31) is sleeved on the guide rod (30), the pressure rod (29) is slidably sleeved on the guide rod (30), and two ends of the second spring (31) are respectively fixedly connected to the inner wall of the slide groove (32) and the guide rod (30).

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