A flexible anti-bending cable and production process

Abstract

The present invention discloses a flexible anti-bending cable and a production process, which belongs to the field of cable technology and includes the following production steps: Step 1: Determine that the cable structure is a core wire, a shielding layer, a first protective sheath layer, an arc-shaped stopper, and a second protective sheath layer from the inside to the outside. The present invention processes the cable into a core wire, a shielding layer, and a first protective sheath layer according to existing equipment, and then uses a cable patch device to equidistantly attach a steel sheet with a thickness of millimeters to both sides of the first protective sheath layer to form an arc-shaped stopper. The arc-shaped stopper does not affect its own flexibility support by setting it. When the bending radius of the cable is too small, the arc-shaped stoppers will resist each other to form resistance to the bending of the cable, thereby avoiding the cable from being damaged due to the small bending radius. The modification and change of the existing cable production line has little impact, and only a cable patch device needs to be added to attach the arc-shaped stopper to the outside of the first protective sheath layer. It has the characteristics of low modification cost and low difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a flexible anti-bending cable and a production process. Background Art

[0002] Cables are usually made up of several or several groups of twisted wires. Depending on the usage scenario, the performance of the cable has different emphases. When the cable is used, in order to avoid damage due to excessive bending, flexible anti-bending cables are required.

[0003] The current flexible anti-bending cable, for example, the anti-bending flexible cable proposed in publication number: CN114596982A, comprises a plurality of cable cores and an outer sheath tube, the inner wall of the outer sheath tube is provided with anti-bending strips located between adjacent cable cores, the outer end of the anti-bending strips is connected to the inner wall of the outer sheath tube, the inner end of the anti-bending strips has an extrusion head, a flexible inner sheath tube is provided between each extrusion head and the cable core, the inner sheath tube has an outer convex covering portion adapted to the cable core, the inner sheath tube has an inner concave covering portion adapted to the extrusion head located between adjacent outer convex covering portions; the circular diameter passing through the axis of each extrusion head is smaller than the circular diameter passing through the axis of each cable core; there is a heat dissipation area surrounding the outer convex covering portion between adjacent anti-bending strips; the inner sheath tube is filled with a buffer material. The present invention has the advantages of good heat dissipation performance and excellent mechanical properties.

[0004] Although the existing anti-bending flexible cable has an anti-bending effect when in use, the addition of the anti-bending strip makes it more difficult to roll and wind the cable, and its anti-bending strip structure is not convenient to install on the basis of existing cable production equipment, and requires a major transformation of the cable production line, which makes the production cost of the flexible anti-bending cable high and inconvenient to use. Therefore, we propose a flexible anti-bending cable and production process to solve the problems raised. Summary of the invention

[0005] The purpose of the present invention is to provide a flexible anti-bending cable and a production process, which can avoid the cable from being damaged due to a small bending radius, and has little impact on the modification of the existing cable production line. It only requires adding a cable patch device to stick the arc-shaped block to the outside of the first protective sheath layer, and has the characteristics of low modification cost and low difficulty.

[0006] To achieve the above object, the present invention provides the following technical solution: a production process of a flexible anti-bending cable, characterized in that it includes the following production steps:

[0007] Step 1: Determine the cable structure from inside to outside, which is the core wire, shielding layer, first protective sheath layer, arc stopper and second protective sheath layer;

[0008] Step 2: Twisting the multiple winding sub-cables on the outside of the central sub-cable by a twisting machine, so that the multiple winding sub-cables and the central sub-cable form a core wire through the twisting machine;

[0009] Step 3: Processing the shielding layer on the outer periphery of the core wire;

[0010] Step 4: The extruder extrude the first protective sleeve layer around the outer periphery of the shielding layer;

[0011] Step 5: Pass the cable through the cable patch device, and use the cable patch device to stick a steel sheet with a thickness of millimeters on the outside of the first protective sheath layer to form an arc-shaped stopper. The spacing between the arc-shaped stoppers is half of their own width. The cable patch device includes a base, and a bracket is installed in the middle of the top of the base. The inner side of the bracket is provided with a patch mechanism for attaching the arc-shaped stopper to the outside of the first protective sheath layer. The patch mechanism includes a patch frame, and a patch frame is installed at the top of the inner side of the base corresponding to the bracket. A patch groove is opened in the middle of the inner side of the patch frame. A first cable groove runs through the middle of the patch frame, and steel belt grooves run through both sides of the patch frame. A steel belt runs through the steel belt groove. The first cable groove and the steel belt groove are both connected to the patch groove. Guide rod grooves are symmetrically provided at both ends of the patch frame, a guide rod runs through the guide rod groove, one end of the guide rod located in the patch groove is fixedly connected to a shearing head, one end of the guide rod located outside the patch frame is fixedly connected to a baffle, a spring is sleeved on the guide rod between the baffle and the patch frame, the bottom of the bracket near the two ends of the patch frame is symmetrically rotatably connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a transmission wheel, and the ring side of the transmission wheel is equidistantly fixedly connected with bumps, the top of the bracket is provided with a driving mechanism for driving the patch mechanism to work, the top of the base is provided with a gluing mechanism for coating glue on the surface of the first protective cover layer near the top of one side of the bracket, and the top of the base located between the patch mechanism and the gluing mechanism is rotatably connected to the first guide wheel and the second guide wheel respectively;

[0012] Step 6: The extruder extrude the second protective cover layer onto the outer periphery of the arc-shaped stopper.

[0013] Preferably, the transmission wheel is transmission-connected with the baffle through a protrusion, and both sides of the protrusion are connected with the transmission wheel in an arc-shaped transition.

[0014] Preferably, the driving mechanism comprises a worm gear, the end of the rotating shaft located above the bracket is fixedly connected to the worm gear, a motor is installed on the top of one side of the bracket, and the shaft end of the motor close to the worm gear is fixedly connected to a worm.

[0015] Preferably, the glue coating mechanism includes a glue coating rack, a glue coating rack is installed on the top of the base near the bracket, a glue coating groove is opened in the middle of the inner side of the glue coating rack, second cable grooves are symmetrically penetrated on both sides of the glue coating groove near the glue coating rack, a sealing ring is installed in the interior of the second cable groove away from the patch rack, an annular scraper is installed in the interior of the second cable groove near the patch rack, a piston cylinder is installed on the top of the base near the glue coating rack, one end of the piston cylinder is connected to a feed pipe, and one side of the piston cylinder is connected to the glue coating groove through a discharge pipe, a first one-way valve and a second one-way valve are installed inside the feed pipe and the discharge pipe respectively, a piston is arranged inside the piston cylinder, and when the transmission wheel rotates, the piston is driven to move back and forth left and right in the piston cylinder through the transmission mechanism.

[0016] Preferably, the first one-way valve allows one-way flow from the feed pipe to the piston cylinder, and the second one-way valve allows one-way flow from the piston cylinder to the glue coating groove.

[0017] Preferably, the transmission mechanism includes a piston rod groove, a piston rod groove is opened at one end of the piston cylinder away from the feed pipe, a piston rod passes through the piston rod groove, one end of the piston rod located in the piston cylinder is fixedly connected to the piston, the end of the piston rod away from the piston is fixedly connected to a transmission frame, a transmission groove passes through the transmission frame, the transmission wheel is fixedly connected to a rotating wheel at the bottom corresponding to the transmission frame, and the rotating wheel is fixedly connected to a transmission rod at the bottom corresponding to the transmission groove.

[0018] Preferably, the transmission rod is arranged at the bottom of the eccentric portion of the rotating wheel, and the outer diameter of the transmission rod is consistent with the inner width of the transmission groove.

[0019] The present invention also provides a flexible anti-bending cable, comprising a core wire, a shielding layer is arranged on the outside of the core wire, a first protective sheath layer is arranged on the outside of the shielding layer, arc-shaped blocks are equidistantly installed on the outside of the first protective sheath layer, and a second protective sheath layer is arranged on the outside of the arc-shaped blocks.

[0020] Preferably, the arc-shaped stopper is a steel sheet with a thickness of millimeters, and the arc-shaped stopper is symmetrically arranged on both sides of the first protective cover layer.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention processes the cable into a core wire, a shielding layer and a first protective sheath layer according to the existing equipment, and then uses a cable patch device to equidistantly stick steel sheets with a thickness of 1 mm on both sides of the first protective sheath layer to form arc-shaped blocks, and the spacing between the arc-shaped blocks is half of their own width. The arc-shaped blocks are set so that the cable can be normally rolled up without affecting its own flexibility. When the bending radius of the cable is too small, the arc-shaped blocks will resist each other to form resistance to the bending of the cable, thereby avoiding damage to the cable due to the small bending radius. The modification and change of the existing cable production line has little impact, and only a cable patch device needs to be added to stick the arc-shaped blocks to the outside of the first protective sheath layer. The modification has the characteristics of low modification cost and low difficulty.

[0023] According to the present invention, after the first protective sheath is added to the cable, the cable passes through the second cable trough and the first cable trough and passes through the inside of the glue coating rack and the patch rack respectively. After the cable is glued in the glue coating trough, it passes through the inside of the patch trough. The steel belt passes around the first guide wheel and the second guide wheel and passes through the inside of the steel belt trough. The steel belt is driven to move by the winding machine, and at the same time, the driving mechanism drives the transmission wheels on both sides to rotate in the same direction. When the transmission wheel abuts against the baffle through the convex block, the baffle overcomes the elastic force of the spring and drives the shearing head to move, so that the shearing head abuts against the steel belt, and the steel sheet is cut off by shearing. The arc-shaped concave end of the shearing head causes the two ends of the steel sheet to bend into an arc during shearing, and then the shearing head pushes the steel sheet to stick to the outside of the cable. Through the extrusion of the shearing head, the steel sheet is bent to an arc that fits the cable, so that the attachment of the arc-shaped stopper is completed. When the protrusion and the baffle are misaligned, the spring drives the shearing head to reset, and through the continuous rotation of the transmission wheel, the moving steel belt can be sheared off the arc-shaped stopper in turn, and the arc-shaped stopper can be attached to the outside of the moving cable in turn. Through the cable patch device, the arc-shaped stopper can be quickly attached to the outside of the cable.

[0024] The invention provides that the transmission wheel drives the shearing head to move back and forth, and when the arc-shaped stopper is patched, the transmission wheel drives the rotating wheel to rotate, and the rotating wheel can drive the transmission frame to move back and forth laterally through the eccentrically arranged transmission rod, so that the transmission frame drives the piston to move back and forth left and right in the piston cylinder through the piston rod. When the piston moves to the right, negative pressure is formed in the piston cylinder on the left side of the piston, so that the first one-way valve is opened, and unsolidified glue enters the piston cylinder through the feeding pipe. When the piston moves to the left, the pressure in the piston cylinder on the left side of the piston increases, so that the second one-way valve is opened, and the glue enters the glue coating groove through the discharging pipe. Through the arranged transmission mechanism, the rotating wheel can drive the piston to move back and forth while patching the arc-shaped stopper, and can automatically draw the glue into the interior of the glue coating groove. When the cable passes through the interior of the glue coating groove, the glue is wrapped on the outside of the cable, and the sealing ring arranged in the second cable groove is used to prevent the glue from overflowing. The excess glue on the surface of the cable can be scraped off by the arranged annular scraper to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the cable structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the cable patch device of the present invention;

[0027] Figure 3 This is a schematic cross-sectional structural diagram of the glue coating frame of the present invention;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the patch rack of the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the transmission mechanism of the present invention;

[0030] Figure 6 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0031] In the figure: 1, core wire; 2, shielding layer; 3, first protective sheath layer; 4, arc-shaped stopper; 5, second protective sheath layer; 6, base; 7, bracket; 8, patch rack; 9, patch slot; 10, first cable slot; 11, steel belt slot; 12, steel belt; 13, guide rod slot; 14, guide rod; 15, shear head; 16, baffle; 17, spring; 18, rotating shaft; 19, transmission wheel; 20, bump; 21, worm gear; 22, motor; 23 , worm; 24, glue coating rack; 25, glue coating groove; 26, second cable groove; 27, sealing ring; 28, annular scraper; 29, piston cylinder; 30, feed pipe; 31, discharge pipe; 32, first one-way valve; 33, second one-way valve; 34, piston; 35, piston rod groove; 36, piston rod; 37, transmission rack; 38, transmission groove; 39, rotating wheel; 40, transmission rod; 41, first guide wheel; 42, second guide wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0033] See also Figures 1 to 6 The present invention provides a technical solution: a production process of a flexible anti-bending cable, comprising the following production steps:

[0034] Step 1: Determine that the cable structure from inside to outside is core wire 1, shielding layer 2, first protective sheath layer 3, arc stopper 4 and second protective sheath layer 5;

[0035] Step 2: Twisting the plurality of winding sub-cables on the outside of the central sub-cable by a twisting machine, so that the plurality of winding sub-cables and the central sub-cable form a core wire 1 through the twisting machine;

[0036] Step 3: Processing the shielding layer 2 on the outer periphery of the core wire 1;

[0037] Step 4: The extruder extrude the first protective sleeve layer 3 onto the outer periphery of the shielding layer 2;

[0038] Step 5: Pass the cable through the cable patch device, and use the cable patch device to stick a steel sheet with a thickness of 1 mm on the outer side of the first protective sheath layer 3 to form an arc-shaped stopper 4. The spacing between the arc-shaped stoppers 4 is half of their own width. The cable patch device includes a base 6, and a bracket 7 is installed in the middle of the top of the base 6. The inner side of the bracket 7 is provided with a patch mechanism for attaching the arc-shaped stopper 4 to the outer side of the first protective sheath layer 3. The patch mechanism includes a patch frame 8. A patch frame 8 is installed at the top of the inner side of the bracket 7 corresponding to the base 6. A patch groove 9 is opened in the middle of the inner side of the patch frame 8. A first cable groove 10 runs through the middle of the patch frame 8. Steel belt grooves 11 run through both sides of the patch frame 8. Steel belts 12 run through the steel belt grooves 11. The first cable groove 10 and the steel belt groove 11 are both connected to the patch groove 9. Both ends of the patch frame 8 A guide rod groove 13 is symmetrically provided, and a guide rod 14 runs through the guide rod groove 13. One end of the guide rod 14 located in the patch groove 9 is fixedly connected to a shear head 15. One end of the guide rod 14 located outside the patch frame 8 is fixedly connected to a baffle 16. A spring 17 is sleeved on the guide rod 14 between the baffle 16 and the patch frame 8. The bottom of the bracket 7 near the two ends of the patch frame 8 is symmetrically rotatably connected to a rotating shaft 18, and the bottom end of the rotating shaft 18 is fixedly connected to a transmission wheel 19, and the ring side of the transmission wheel 19 is equidistantly fixedly connected with a bump 20. The top of the bracket 7 is provided with a driving mechanism for driving the patch mechanism to work, and the top of the base 6 near the bracket 7 is provided with a gluing mechanism for coating glue on the surface of the first protective cover layer 3. The top of the base 6 located between the patch mechanism and the gluing mechanism is rotatably connected to a first guide wheel 41 and a second guide wheel 42 respectively;

[0039] Step 6: The extruder extrude the second protective cover layer 5 onto the outer periphery of the arc-shaped stopper 4;

[0040] According to the existing equipment, the cable is processed into a core wire 1, a shielding layer 2 and a first protective sheath layer 3, and then a cable patch device is used to equidistantly stick steel sheets with a thickness of 1 mm on both sides of the first protective sheath layer 3 to form arc-shaped blocks 4, and the spacing between the arc-shaped blocks 4 is half of its own width. The arc-shaped blocks 4 are set so that the cable can be normally rolled up without affecting its own flexibility. When the bending radius of the cable is too small, the arc-shaped blocks 4 will resist each other to form resistance to the bending of the cable, thereby avoiding damage to the cable due to the small bending radius, and the modification and change of the existing cable production line has little impact, and it only needs to add a cable patch device to stick the arc-shaped block 4 on the outside of the first protective sheath layer 3, which has the characteristics of low modification cost and low difficulty.

[0041] See also Figures 1 to 6 The patch mechanism includes a patch rack 8, a patch rack 8 is installed on the top of the inner side of the base 6 corresponding to the bracket 7, a patch slot 9 is opened in the middle of the inner side of the patch rack 8, a first cable slot 10 runs through the middle of the patch rack 8, steel belt slots 11 are passed through the two sides of the patch rack 8, a steel belt 12 runs through the steel belt slot 11, the first cable slot 10 and the steel belt slot 11 are both connected to the patch slot 9, guide rod slots 13 are symmetrically opened at both ends of the patch rack 8, a guide rod 14 runs through the guide rod slot 13, and the guide rod 14 is located at one end of the patch slot 9 A shearing head 15 is fixedly connected, a baffle 16 is fixedly connected to one end of the guide rod 14 located outside the patch frame 8, a spring 17 is sleeved on the guide rod 14 between the baffle 16 and the patch frame 8, and a rotating shaft 18 is symmetrically connected to the bottom of the bracket 7 near the two ends of the patch frame 8, and a transmission wheel 19 is fixedly connected to the bottom end of the rotating shaft 18, and a protrusion 20 is fixedly connected to the ring side of the transmission wheel 19 at equal intervals. After the first protective sheath layer 3 is added to the cable, the cable gluing mechanism completes the gluing, and then the cable passes through the inside of the patch slot 9, and the steel belt After passing the first guide wheel 41 and the second guide wheel 42, the steel belt 12 passes through the interior of the steel belt groove 11, and the steel belt 12 is driven to move by the winding machine. At the same time, the driving mechanism drives the transmission wheels 19 on both sides to rotate in the same direction. When the transmission wheel 19 abuts against the baffle 16 through the protrusion 20, the baffle 16 overcomes the elastic force of the spring 17 and drives the shearing head 15 to move, so that the shearing head 15 abuts against the steel belt 12, and the steel sheet is cut off by shearing. At the same time, the arc-shaped concave end of the shearing head 15 causes the two ends of the steel sheet to bend into an arc during shearing. The rear shearing head 15 pushes the steel sheet to stick to the outside of the cable. Through the extrusion of the shearing head 15, the steel sheet is bent to an arc that fits the cable, so that the arc stopper 4 is attached. When the protrusion 20 and the baffle 16 are misaligned, the spring 17 drives the shearing head 15 to reset. Through the continuous rotation of the transmission wheel 19, the moving steel belt 12 can cut off the arc stopper 4 in turn, and the arc stopper 4 can be attached to the outside of the moving cable in turn. Through the cable patch device, the arc stopper 4 can be quickly attached to the outside of the cable.

[0042] The transmission wheel 19 is transmission-connected with the baffle 16 via the protrusion 20, and the two sides of the protrusion 20 are connected to the transmission wheel 19 in an arc-shaped transition. The driving mechanism includes a worm gear 21. The end of the rotating shaft 18 located above the bracket 7 is fixedly connected with the worm gear 21. A motor 22 is installed on the top of one side of the bracket 7. The shaft end of the motor 22 close to the worm gear 21 is fixedly connected with a worm 23. When the motor 22 is working, it drives the worm gear 23 to rotate. The worm gear 23 drives the worm wheel 21 to rotate through meshing, so that the worm wheel 21 drives the transmission wheel 19 to rotate.

[0043] The gluing mechanism includes a gluing frame 24, a gluing frame 24 is installed on the top of the base 6 near the bracket 7, a gluing groove 25 is opened in the middle of the inner side of the gluing frame 24, a second cable groove 26 is symmetrically penetrated on both sides of the gluing frame 24 near the gluing groove 25, a sealing ring 27 is installed inside the second cable groove 26 away from the patch frame 8, an annular scraper 28 is installed inside the second cable groove 26 near the patch frame 8, a piston cylinder 29 is installed on the top of the base 6 near the gluing frame 24, and one end of the piston cylinder 29 is connected to a feed pipe 30, one side of the piston cylinder 29 is connected to the glue coating groove 25 through the discharge pipe 31, and the first one-way valve 32 and the second one-way valve 33 are respectively installed inside the feed pipe 30 and the discharge pipe 31. A piston 34 is arranged inside the piston cylinder 29. When the transmission wheel 19 rotates, the piston 34 is driven to move back and forth in the piston cylinder 29 through the transmission mechanism. The first one-way valve 32 is unidirectional from the feed pipe 30 to the piston cylinder 29, and the second one-way valve 33 is unidirectional from the piston cylinder 29 to the glue coating groove 25.

[0044] The transmission mechanism includes a piston rod groove 35. The piston cylinder 29 is provided with a piston rod groove 35 at one end away from the feed pipe 30. A piston rod 36 runs through the piston rod groove 35. The piston rod 36 is located in the piston cylinder 29 and is fixedly connected to the piston 34 at one end. The piston rod 36 is fixedly connected to a transmission frame 37 at one end away from the piston 34. The transmission frame 37 runs through a transmission groove 38. The transmission wheel 19 is fixedly connected to a rotating wheel 39 at the bottom end corresponding to the transmission frame 37. The rotating wheel 39 is fixedly connected to a transmission rod 40 at the bottom of the transmission groove 38. The transmission rod 40 is arranged at the bottom of the eccentric part of the rotating wheel 39, and the outer diameter of the transmission rod 40 coincides with the inner width of the transmission groove 38. When the transmission wheel 19 drives the shearing head 15 to reciprocate and the arc stopper 4 is patched, the transmission wheel 19 drives the rotating wheel 39 to rotate. The rotating wheel 39 can drive the transmission frame 37 to reciprocate laterally through the eccentrically arranged transmission rod 40, so that the transmission frame 37 passes through the transmission frame 37. The piston 34 is driven to move back and forth in the piston cylinder 29 by the piston rod 36. When the piston 34 moves to the right, negative pressure is formed in the piston cylinder 29 on the left side of the piston 34, so that the first one-way valve 32 is opened, and the unsolidified glue enters the piston cylinder 29 through the feeding pipe 30. When the piston 34 moves to the left, the pressure in the piston cylinder 29 on the left side of the piston 34 increases, so that the second one-way valve 33 is opened, and the glue enters the glue coating groove 25 through the discharging pipe 31. Through the transmission mechanism, the rotating wheel 39 can drive the piston 34 to move back and forth while pasting the arc-shaped stopper 4, and can automatically draw the glue into the inside of the glue coating groove 25. When the cable passes through the inside of the glue coating groove 25, the glue is wrapped around the outside of the cable, and the sealing ring 27 provided in the second cable groove 26 is used to prevent the glue from overflowing. The annular scraper 28 is provided to scrape off the excess glue on the cable surface to avoid waste.

[0045] The present invention also provides a flexible anti-bending cable, comprising a core wire 1, a shielding layer 2 is arranged on the outside of the core wire 1, a first protective sheath layer 3 is arranged on the outside of the shielding layer 2, arc-shaped blocks 4 are equidistantly installed on the outside of the first protective sheath layer 3, a second protective sheath layer 5 is arranged on the outside of the arc-shaped blocks 4, the arc-shaped blocks 4 are steel sheets with a thickness of 1 mm, and the arc-shaped blocks 4 are symmetrically arranged on both sides of the first protective sheath layer 3.

[0046] Working principle: This kind of flexible anti-bending cable and production process, according to the existing equipment, processes the cable into a core wire 1, a shielding layer 2 and a first protective sheath layer 3, and then uses a cable patch device to equidistantly stick a steel sheet with a thickness of 1 mm on both sides of the first protective sheath layer 3 to form an arc-shaped stopper 4, and the spacing between the arc-shaped stoppers 4 is half of their own width. The arc-shaped stoppers 4 are set, so that the cable can be normally rolled up and will not affect its own flexibility. When the bending radius of the cable is too small, the arc-shaped stoppers 4 will resist each other to form resistance to cable bending, thereby avoiding damage to the cable due to the small bending radius, and has little impact on the modification of the existing cable production line. It only needs to add a cable patch device to stick the arc-shaped stopper 4 on the outside of the first protective sheath layer 3. It has the characteristics of low modification cost and low difficulty. After the first protective sheath layer 3 is added to the cable, the cable passes through the second cable trough 26 and the first cable trough 10 and passes through the inside of the glue coating rack 24 and the patch rack 8 respectively. After the cable is glued in the glue coating trough 25, it passes through After passing through the patch slot 9, the steel belt 12 bypasses the first guide wheel 41 and the second guide wheel 42 and passes through the steel belt slot 11. The steel belt 12 is driven to move by the winding machine. At the same time, the driving mechanism drives the transmission wheels 19 on both sides to rotate in the same direction. When the transmission wheel 19 abuts against the baffle 16 through the convex block 20, the baffle 16 overcomes the elastic force of the spring 17 and drives the shearing head 15 to move, so that the shearing head 15 abuts against the steel belt 12, and the steel sheet is cut off by shearing. At the same time, the arc-shaped concave end of the shearing head 15 causes the two ends of the steel sheet to bend during shearing. After the arc is formed, the shearing head 15 pushes the steel sheet to stick to the outside of the cable. Through the extrusion of the shearing head 15, the steel sheet is bent to the arc that fits the cable, so that the arc stopper 4 is attached. When the protrusion 20 is misaligned with the baffle 16, the spring 17 drives the shearing head 15 to reset. Through the continuous rotation of the transmission wheel 19, the moving steel belt 12 can be sheared off the arc stopper 4 in turn, and the arc stopper 4 is attached to the outside of the moving cable in turn. Through the cable patch device, the arc stopper 4 can be quickly attached to the outside of the cable.

[0047] When the motor 22 is working, it drives the worm 23 to rotate, and the worm 23 drives the worm wheel 21 to rotate through meshing, so that the worm wheel 21 drives the transmission wheel 19 to rotate, and the transmission wheel 19 drives the shearing head 15 to move back and forth. When the arc-shaped stopper 4 is patched, the transmission wheel 19 drives the rotating wheel 39 to rotate, and the rotating wheel 39 can drive the transmission frame 37 to move back and forth horizontally through the eccentrically arranged transmission rod 40, so that the transmission frame 37 drives the piston 34 to move back and forth left and right in the piston cylinder 29 through the piston rod 36. When the piston 34 moves to the right, a negative pressure is formed in the piston cylinder 29 on the left side of the piston 34, so that the first one-way valve 32 is opened, and the unsolidified glue enters through the feed pipe 30. In the piston cylinder 29, when the piston 34 moves to the left, the pressure in the piston cylinder 29 on the left side of the piston 34 increases, so that the second one-way valve 33 opens, and the glue enters the glue coating groove 25 through the discharge pipe 31. Through the transmission mechanism, the rotating wheel 39 can drive the piston 34 to move back and forth while pasting the arc-shaped stopper 4, and can automatically draw the glue into the glue coating groove 25. When the cable passes through the glue coating groove 25, the glue is wrapped around the outside of the cable, and the sealing ring 27 set in the second cable groove 26 is used to prevent the glue from overflowing. The annular scraper 28 is used to scrape off the excess glue on the cable surface to avoid waste.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production process for a flexible anti-bending cable, characterized in that: The production process includes the following steps: Step 1: Determine that the cable structure is, from the inside to the outside, a core wire (1), a shielding layer (2), a first protective sheath layer (3), an arc-shaped stopper (4), and a second protective sheath layer (5); Step 2: Twisting the plurality of winding sub-cables on the outside of the central sub-cable by a twisting machine, so that the plurality of winding sub-cables and the central sub-cable form a core wire (1) through the twisting machine; Step 3: Processing the shielding layer (2) on the outer periphery of the core wire (1); Step 4: The extruder extrude the first protective sleeve layer (3) onto the outer periphery of the shielding layer (2); Step 5: Pass the cable through the cable patch device, and use the cable patch device to stick a steel sheet with a thickness of 1 mm on the outside of the first protective sheath layer (3) to form an arc-shaped stopper (4), wherein the spacing between the arc-shaped stoppers (4) is half of their own width. The cable patch device comprises a base (6), and a bracket (7) is installed at the middle of the top of the base (6). The inner side of the bracket (7) is provided with a patch mechanism for attaching the arc-shaped stopper (4) to the outside of the first protective sheath layer (3). The patch machine The structure comprises a patch frame (8), the patch frame (8) is installed on the top of the inner side of the base (6) corresponding to the bracket (7), a patch slot (9) is opened in the middle of the inner side of the patch frame (8), a first cable slot (10) runs through the middle of the patch frame (8), steel belt slots (11) run through both sides of the patch frame (8), a steel belt (12) runs through the steel belt slot (11), the first cable slot (10) and the steel belt slot (11) are both connected to the patch slot (9), and the patch frame (8) has two ends facing each other. A guide rod groove (13) is provided, a guide rod (14) passes through the guide rod groove (13), one end of the guide rod (14) located in the patch groove (9) is fixedly connected to a shear head (15), one end of the guide rod (14) located outside the patch frame (8) is fixedly connected to a baffle (16), a spring (17) is sleeved on the guide rod (14) between the baffle (16) and the patch frame (8), and the bottom of the bracket (7) near the two ends of the patch frame (8) is symmetrically rotatably connected to a rotating shaft (18), and the rotating shaft (18) 18) is fixedly connected to the bottom end thereof with a transmission wheel (19), and a protrusion (20) is fixedly connected to the ring side of the transmission wheel (19) at equal intervals, a driving mechanism for driving the patch mechanism is arranged on the top of the bracket (7), a gluing mechanism for applying glue to the surface of the first protective sleeve layer (3) is arranged on the top of the base (6) close to the bracket (7), and a first guide wheel (41) and a second guide wheel (42) are rotatably connected to the top of the base (6) located between the patch mechanism and the gluing mechanism; Step 6: The extruder extrude the second protective sleeve layer (5) onto the outer periphery of the arc-shaped stopper (4).

2. The production process of the flexible anti-bending cable according to claim 1 is characterized in that: The transmission wheel (19) is transmission-connected to the baffle (16) via the protrusion (20), and both sides of the protrusion (20) are connected to the transmission wheel (19) in an arc-shaped transition.

3. The production process of the flexible anti-bending cable according to claim 1 is characterized in that: The driving mechanism comprises a worm wheel (21), the end of the rotating shaft (18) located above the bracket (7) is fixedly connected to the worm wheel (21), a motor (22) is mounted on the top of one side of the bracket (7), and the shaft end of the motor (22) close to the worm wheel (21) is fixedly connected to a worm (23).

4. The production process of the flexible anti-bending cable according to claim 1 is characterized in that: The gluing mechanism comprises a gluing frame (24), the gluing frame (24) being installed on the top of the base (6) near the bracket (7), a gluing groove (25) being provided in the middle of the inner side of the gluing frame (24), second cable grooves (26) being symmetrically passed through the two sides of the gluing frame (24) near the gluing grooves (25), a sealing ring (27) being installed inside the second cable groove (26) away from the patch frame (8), an annular scraper (28) being installed inside the second cable groove (26) near the patch frame (8), and the base (6) being near the gluing frame. A piston cylinder (29) is installed on the top of the frame (24). One end of the piston cylinder (29) is connected to a feed pipe (30). One side of the piston cylinder (29) is connected to the glue coating groove (25) through a discharge pipe (31). A first one-way valve (32) and a second one-way valve (33) are installed inside the feed pipe (30) and the discharge pipe (31), respectively. A piston (34) is arranged inside the piston cylinder (29). When the transmission wheel (19) rotates, the piston (34) is driven to move back and forth in the piston cylinder (29) through a transmission mechanism.

5. The production process of the flexible anti-bending cable according to claim 4 is characterized in that: The first one-way valve (32) allows one-way flow from the feed pipe (30) to the piston cylinder (29), and the second one-way valve (33) allows one-way flow from the piston cylinder (29) to the glue coating groove (25).

6. The production process of the flexible anti-bending cable according to claim 4, characterized in that: The transmission mechanism comprises a piston rod groove (35), wherein the piston cylinder (29) is provided with a piston rod groove (35) at one end away from the feed pipe (30), a piston rod (36) passes through the piston rod groove (35), one end of the piston rod (36) located in the piston cylinder (29) is fixedly connected to the piston (34), the end of the piston rod (36) away from the piston (34) is fixedly connected to a transmission frame (37), a transmission groove (38) passes through the transmission frame (37), the transmission wheel (19) is fixedly connected to a rotating wheel (39) at the bottom end corresponding to the transmission frame (37), and the rotating wheel (39) is fixedly connected to a transmission rod (40) at the bottom end corresponding to the transmission groove (38).

7. The production process of the flexible anti-bending cable according to claim 6, characterized in that: The transmission rod (40) is arranged at the bottom of the eccentric portion of the rotating wheel (39), and the outer diameter of the transmission rod (40) matches the inner width of the transmission groove (38).

8. A flexible anti-bending cable, applied to a cable produced by the production process of a flexible anti-bending cable according to any one of claims 1 to 7, comprising a core wire (1), characterized in that: A shielding layer (2) is arranged on the outside of the core wire (1), a first protective sheath layer (3) is arranged on the outside of the shielding layer (2), arc-shaped stoppers (4) are equidistantly installed on the outside of the first protective sheath layer (3), and a second protective sheath layer (5) is arranged on the outside of the arc-shaped stoppers (4).

9. The flexible anti-bending cable according to claim 8, characterized in that: The arc-shaped stopper (4) is a steel sheet with a thickness of 1 mm, and the arc-shaped stopper (4) is symmetrically arranged on both sides of the first protective sleeve layer (3).

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